text:
Office of Scientific and Technical Information
Real-Time Hazard Approximation of Long-Lasting Convective Storms Using Emergency Data
Science Conference Proceedings (OSTI)
Convective storms cause several types of damage, including economic and ecological losses, every year. This paper focuses on an automatic hazard-level determination of convective storms based on a largely unused information source: real-time ...
Pekka J. Rossi; Vesa Hasu; Kalle Halmevaara; Antti M�kel�; Jarmo Koistinen; Heikki Pohjola
Wireless technology collects real-time information from oil and...
NLE Websites -- All DOE Office Websites (Extended Search)
Wireless technology collects real-time information from oil and gas wells Wireless technology collects real-time information from oil and gas wells The patented system delivers...
Property:Real-Time | Open Energy Information
Open Energy Info (EERE)
Real-Time Real-Time Jump to: navigation, search Property Name Real-Time Property Type String Pages using the property "Real-Time" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + No + 10-ft Wave Flume Facility + No + 11-ft Wave Flume Facility + No + 2 2-ft Flume Facility + No + 3 3-ft Wave Flume Facility + No + 5 5-ft Wave Flume Facility + No + 6 6-ft Wave Flume Facility + No + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + Yes + Alden Wave Basin + Yes + B Breakwater Research Facility + No + Bucknell Hydraulic Flume + No + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + No + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + No + Carderock Circulating Water Channel + No +
COAMPS Real-Time Dust Storm Forecasting during Operation Iraqi Freedom
Dust storms are a significant weather phenomenon in the Iraq region in winter and spring. Real-time dust forecasting using the U.S. Navy�s Coupled Ocean�Atmospheric Mesoscale Prediction System (COAMPS) with an in-line dust aerosol model was ...
Ming Liu; Douglas L. Westphal; Annette L. Walker; Teddy R. Holt; Kim A. Richardson; Steven D. Miller
Real-Time Traffic Information.pub
Traffic Information for Emergency Evacuation Operations Research Brief Oak Ridge National Laboratory managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract...
Real-Time Traffic Information for Emergency Evacuations
There are many instances in which it is possible to plan ahead for an emergency evacuation (e.g., a chemical processing facility explosion). For those cases, if an accident were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other cases (e.g., the derailment of a train transporting hazardous materials), there may not be any previously developed plan to be implemented, and decisions must be made ad-hoc on how to proceed with an emergency evacuation. In both situations, the availability of real-time traffic information plays a critical role in the management of the evacuation operations. Due to cost constraints, only large urban areas have traffic sensor deployments that permit access to some sort of real-time traffic information; an evacuation taking place in other areas of the country would have to proceed without real-time traffic information. In order to improve operations during a vehicular emergency evacuation anywhere, a system of sensors that uses newly developed real-time traffic-information-gathering technologies to assess traffic conditions and to detect incidents on the main evacuation routes is presented in this paper. A series of tests, both in a controlled environment and in the field, were conducted to study the feasibility of such a system of traffic sensors and to assess its ability to provide real-time traffic information during an emergency evacuation. The results of these tests indicated that the prototype sensors are reliable and accurate for the type of application that is the focus of this paper.
Franzese, Oscar [ORNL; Zhang, Li [Mississippi State University (MSU); Mahmoud, Anas M. [Mississippi State University (MSU)
Definition: Real-Time Load Transfer | Open Energy Information
Real-time load transfer is achieved through real-time feeder reconfiguration and optimization to relieve load on equipment, improve asset utilization, improve distribution...
Development of a Real-Time Interactive Storm-Monitoring Program in Phoenix, Arizona
The Arizona Thunderstorm Chase (AZTC) program, a cooperative project between the National Weather Service (NWS) in Phoenix and Arizona State University (ASU), uses trained ASU students as mobile observers with real-time communications ability to ...
Randall S. Cerveny; Steven M. Calderon; Michael W. Franjevic; Norman C. Hoffmann
Wireless technology collects real-time information from oil and gas wells
Wireless technology collects real-time information from oil and gas Wireless technology collects real-time information from oil and gas wells Wireless technology collects real-time information from oil and gas wells The patented system delivers continuous electromagnetic data on the reservoir conditions, enabling economical and effective monitoring and analysis. April 3, 2012 One of several active projects, LANL and Chevron co-developed INFICOMM(tm), a wireless technology used to collect real-time temperature and pressure information from sensors in oil and gas wells, including very deep wells already producing oil and gas and drilling operations for new wells. One of several active projects, LANL and Chevron co-developed INFICOMM(tm), a wireless technology used to collect real-time temperature and pressure information from sensors in oil and gas wells, including very deep wells
A Real-Time Climate Information System for the Midwestern United States
The Midwestern Climate Information System (MICIS) is a near real-time system which provides access to a wide variety of climate information products. These include current temperature and precipitation data for several hundred midwestern United ...
Kenneth E. Kunkel; Stanley A. Changnon; Carl G. Lonnquist; James R. Angel
Real-time trip information service for a large taxi fleet
In this paper, we describe the design, analysis, implementation, and operational deployment of a real-time trip information system that provides passengers with the expected fare and trip duration of the taxi ride they are planning to take. This system ... Keywords: history-based predictions, nearest neighbour queries, partition-based predictions, taxi fleets, trip information service
Rajesh Krishna Balan; Khoa Xuan Nguyen; Lingxiao Jiang
Using Social Networks for Exchanging Valuable Real Time Public Transport Information among Travellers
Public transport users are increasingly connected in real time through mobile devices to social networks, such as Twitter and Facebook. This allows them both to access and to provide valuable operational and emotional information from and to fellow travellers. ... Keywords: mobile, transport, social network, service science, innovation, business model, serious game
Antonio A. Nunes; Teresa Galvao; Joao Falcao e Cunha; Jeremy V. Pitt
Simulation-based utility assessment of real-time information for sustainable mining operations
In capital intensive industries such as coalmines, real-time information is useful to run their operations within sustainable limits, and to enable early detection and response to deviations from those limits. The goal of this research is to assess the ...
Sai Srinivas Nageshwaraniyer; Chao Meng; Young-Jun Son; Sean Dessureault
Real-Time Traffic Information for Emergency Evacuation Operations: Phase A Final Report
There are many instances in which it is possible to plan ahead for an emergency evacuation (e.g., an explosion at a chemical processing facility). For those cases, if an accident (or an attack) were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other cases (e.g., the derailment of a train transporting hazardous materials), there may not be any previously developed plan to be implemented and decisions must be made ad-hoc on how to proceed with an emergency evacuation. In both situations, the availability of real-time traffic information plays a critical role in the management of the evacuation operations. To improve public safety during a vehicular emergency evacuation it is necessary to detect losses of road capacity (due to incidents, for example) as early as possible. Once these bottlenecks are identified, re-routing strategies must be determined in real-time and deployed in the field to help dissipate the congestion and increase the efficiency of the evacuation. Due to cost constraints, only large urban areas have traffic sensor deployments that permit access to some sort of real-time traffic information; any evacuation taking place in any other areas of the country would have to proceed without real-time traffic information. The latter was the focus of this SERRI/DHS (Southeast Region Research Initiative/Department of Homeland Security) sponsored project. That is, the main objective on the project was to improve the operations during a vehicular emergency evacuation anywhere by using newly developed real-time traffic-information-gathering technologies to assess traffic conditions and therefore to potentially detect incidents on the main evacuation routes. Phase A of the project consisted in the development and testing of a prototype system composed of sensors that are engineered in such a way that they can be rapidly deployed in the field where and when they are needed. Each one of these sensors is also equipped with their own power supply and a GPS (Global Positioning System) device to auto-determine its spatial location on the transportation network under surveillance. The system is capable of assessing traffic parameters by identifying and re-identifying vehicles in the traffic stream as those vehicles pass over the sensors. The system of sensors transmits, through wireless communication, real-time traffic information (travel time and other parameters) to a command and control center via an NTCIP (National Transportation Communication for ITS Protocol) -compatible interface. As an alternative, an existing NTCIP-compatible system accepts the real-time traffic information mentioned and broadcasts the traffic information to emergency managers, the media and the public via the existing channels. A series of tests, both in a controlled environment and on the field, were conducted to study the feasibility of rapidly deploying the system of traffic sensors and to assess its ability to provide real-time traffic information during an emergency evacuation. The results of these tests indicated that the prototype sensors are reliable and accurate for the type of application that is the focus of this project.
Franzese, Oscar [ORNL; Zhang, Li [Mississippi State University (MSU); Mahmoud, Anas M. [Mississippi State University (MSU); Lascurain, Mary Beth [ORNL; Wen, Yi [Mississippi State University (MSU)
New frac analysis uses real-time information to lower costs, raise
Evolving hydraulic fracturing technology during the past 10 years has led to reduced costs, improved production and increased cash flow. This report describes several critical aspects in hydraulic fracturing including mechanisms, approaches in treatment quality control procedures and stress profile development, and finally, it is shown how the mechanisms or processes can be addressed and improved through advanced, real-time hydraulic fracture treatment evaluation and execution.
Aud, W.W.; Middlebrook, M.L. [Integrated petroleum Technologies Inc., Denver, CO (United States)
Gulf of Mexico Fact Sheet - Energy Information Administration
U.S. Energy Information Administration (EIA)
Includes hydropower, solar, wind, geothermal, biomass and ethanol. Nuclear & Uranium. ... Energy Infrastructure with Real-time Storm Information.
Real-time shading
Real-time procedural shading was once seen as a distant dream. When the first version of this course was offered four years ago, real-time shading was possible, but only with one-of-a-kind hardware or by combining the effects of tens to hundreds of rendering ...
Marc Olano; Kurt Akeley; John C. Hart; Wolfgang Heidrich; Michael McCool; Jason L. Mitchell; Randi Rost
FyreStorm Inc | Open Energy Information
FyreStorm Inc FyreStorm Inc Jump to: navigation, search Name FyreStorm Inc Place Sunnyvale, California Zip 94086 Product A semiconductor company developing power management technologies to enable a new generation of mobile electronic products. Coordinates 32.780338°, -96.547405° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.780338,"lon":-96.547405,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Today in Energy - Archive - U.S. Energy Information ...
Includes hydropower, solar, wind, geothermal, biomass and ethanol. ... EIA releases energy infrastructure map with real-time storm information. July 8, 2013
Real time wind turbine simulator.
E-Print Network (OSTI)
??A novel dynamic real-time wind turbine simulator (WTS) is developed in this thesis, which is capable of reproducing dynamic behavior of real wind turbine. The� (more)
Gong, Bing
The Real Time System Operations (RTSO) 2006-2007 project focused on two parallel technical tasks: (1) Real-Time Applications of Phasors for Monitoring, Alarming and Control; and (2) Real-Time Voltage Security Assessment (RTVSA) Prototype Tool. The overall goal of the phasor applications project was to accelerate adoption and foster greater use of new, more accurate, time-synchronized phasor measurements by conducting research and prototyping applications on California ISO's phasor platform - Real-Time Dynamics Monitoring System (RTDMS) -- that provide previously unavailable information on the dynamic stability of the grid. Feasibility assessment studies were conducted on potential application of this technology for small-signal stability monitoring, validating/improving existing stability nomograms, conducting frequency response analysis, and obtaining real-time sensitivity information on key metrics to assess grid stress. Based on study findings, prototype applications for real-time visualization and alarming, small-signal stability monitoring, measurement based sensitivity analysis and frequency response assessment were developed, factory- and field-tested at the California ISO and at BPA. The goal of the RTVSA project was to provide California ISO with a prototype voltage security assessment tool that runs in real time within California ISO?s new reliability and congestion management system. CERTS conducted a technical assessment of appropriate algorithms, developed a prototype incorporating state-of-art algorithms (such as the continuation power flow, direct method, boundary orbiting method, and hyperplanes) into a framework most suitable for an operations environment. Based on study findings, a functional specification was prepared, which the California ISO has since used to procure a production-quality tool that is now a part of a suite of advanced computational tools that is used by California ISO for reliability and congestion management.
Eto, Joseph H.; Parashar, Manu; Lewis, Nancy Jo
A real time priority scheduler
The real time priority scheduler reported herein evolved from a design effort to provide software aids for handling the interrupts that occur in hybrid computation. Since these interrupts are both internal and external (i.e., generated internal and external ...
Karl Ramsay; Jon C. Strauss
Real time monitoring in web telerobotics
There is a growing need for humans to perform complex remote operations and to extend the intelligence and experience of experts to distant applications. A blending of human intelligence, modern information technology, remote control, and intelligent ... Keywords: TCP/IP, UDP, control, internet, monitoring, real-time, telerobotics, web
Ionut Resceanu; Marius Niculescu; Cristina Pana
EIA releases energy infrastructure map with real-time ...
With peak hurricane season approaching, the U.S. Energy Information Administration (EIA) is introducing interactive maps that combine real-time data ...
Real Time Grid Reliability Management 2005
The increased need to manage California?s electricity grid in real time is a result of the ongoing transition from a system operated by vertically-integrated utilities serving native loads to one operated by an independent system operator supporting competitive energy markets. During this transition period, the traditional approach to reliability management -- construction of new transmission lines -- has not been pursued due to unresolved issues related to the financing and recovery of transmission project costs. In the absence of investments in new transmission infrastructure, the best strategy for managing reliability is to equip system operators with better real-time information about actual operating margins so that they can better understand and manage the risk of operating closer to the edge. A companion strategy is to address known deficiencies in offline modeling tools that are needed to ground the use of improved real-time tools. This project: (1) developed and conducted first-ever demonstrations of two prototype real-time software tools for voltage security assessment and phasor monitoring; and (2) prepared a scoping study on improving load and generator response models. Additional funding through two separate subsequent work authorizations has already been provided to build upon the work initiated in this project.
Eto, Joe; Eto, Joe; Lesieutre, Bernard; Lewis, Nancy Jo; Parashar, Manu
The use of process information for verification of inventory in solvent extraction contactors in near-real-time accounting for reprocessing plants
SciTech Connect
Near-real-time accounting is being studied as a technique for improving the timeliness of accounting in nuclear fuel reprocessing plants. A major criticism of near-real-time accounting is perceived disclosure of proprietary data for IAEA verification, particularly in verifying the inventory of solvent extraction contactors. This study indicates that the contribution of uncertainties in estimating the inventory of pulsed columns or mixer settlers may be insignificant compared to uncertainties in measured throughput and measurable inventory for most reprocessing plants, and verification may not be a serious problem. Verification can become a problem for plants with low throughput and low inventory in tanks if contactor inventory variations or uncertainties are greater than /approximately/25%. Each plant must be evaluated with respect to its specific inventory and throughput characteristics. 11 refs., 4 figs.
Hakkila, E.A.; Barnes, J.W.; Hafer, J.F.
Real-Time Airborne Particle Analyzer
Geology, biology, and environmental science HAZMAT Weapons inspection : Real-time method for measuring elemental composition
Real time infrared aerosol analyzer
DOE Patents (OSTI)
Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine particles impact onto an internal light reflection element. The composition and quantity of the particles on the PTFE filter and on the internal reflection element are measured by alternately passing infrared light through the filter and the internal light reflection element, and analyzing the light through infrared spectrophotometry to identify the particles in the sample.
Johnson, Stanley A. (Countryside, IL); Reedy, Gerald T. (Bourbonnais, IL); Kumar, Romesh (Naperville, IL)
Predictable real-time software synthesis
Formal theories for real-time systems (such as timed process algebra, timed automata and timed petri nets) have gained great success in the modeling of concurrent timing behavior and in the analysis of real-time properties. However, due to the ineliminable ... Keywords: Formal methods, Program synthesis, Real-time systems
Jinfeng Huang; Jeroen Voeten; Henk Corporaal
A Classification Scheme for Winter Storms in the Eastern and Central United States with an emphasis on Nor'easters
A classification scheme for nor'easters and other winter storms (November-April) in the eastern and central United States provides real-time information on the potential impact of these storms. This scheme also may be applied to winterstorms over ...
Gregory A. Zielinski
Harmonizing Melodies in Real-Time: the Connectionist Approach
We describe a sequential neural network for harmonizing melodies in real time. It models aspects of human cognition. This neural network succeeds reasonably well, if we take into consideration the constraints imposed by real time processing. The model exploits efficiently the available sequential information. The net contains a sub-net for meter that produces a periodic index of meter, providing the needed metric awareness. The net learns the relations between important notes of the melody and their harmonies and is able to produce harmonies for new melodies in real time, i.e., without knowledge of the future development of the melody.
Dan Gang; Daniel Lehmann; Naftali Wagner
Integration of Real-Time Data Into Building Automation Systems
The project goal was to investigate the possibility of using predictive real-time information from the Internet as an input to building management system algorithms. The objectives were to identify the types of information most valuable to commercial and residential building owners, managers, and system designers. To comprehensively investigate and document currently available electronic real-time information suitable for use in building management systems. Verify the reliability of the information and recommend accreditation methods for data and providers. Assess methodologies to automatically retrieve and utilize the information. Characterize equipment required to implement automated integration. Demonstrate the feasibility and benefits of using the information in building management systems. Identify evolutionary control strategies.
Mark J. Stunder; Perry Sebastian; Brenda A. Chube; Michael D. Koontz
Using real-time truck transportation information to predict customer rejections and refrigeration-system fuel efficiency in packaged salad distribution
Companies that operate cold supply chains can greatly benefit from information availability and data generation. The abundance of information now available to cold chain operators and harvested from every echelon of the ...
Seminario, Carlos (Carlos Manuel Seminario Velarde)
NedPower Mount Storm LLC | Open Energy Information
NedPower Mount Storm LLC NedPower Mount Storm LLC Jump to: navigation, search Name NedPower Mount Storm LLC Place Chantilly, Virginia Zip 20151 Sector Wind energy Product Owner of the Mount Storm wind project in Grant County, West Virginia. Coordinates 38.883607°, -77.439755° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.883607,"lon":-77.439755,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Definition: Real-Time Load Measurement And Management | Open Energy
Management Management Jump to: navigation, search Dictionary.png Real-Time Load Measurement And Management This function provides real-time measurement of customer consumption and management of load through Advanced Metering Infrastructure (AMI) systems (smart meters, two-way communications) and embedded appliance controllers that help customers make informed energy use decisions via real-time price signals, time-of-use (TOU) rates, and service options.[1] Related Terms advanced metering infrastructure, time-of-use pricing, smart grid References ↑ SmartGrid.gov 'Description of Functions' An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Real-Time_Load_Measurement_And_Management&oldid=493115
Documenting Storm Severity in the Mid-Atlantic Region Using Lightning and Radar Information
Storm severity in the mid-Atlantic region of the United States is examined using lightning, radar, and model-derived information. Automated Warning Decision Support System (WDSS) procedures are developed to create grids of lightning and radar ...
Scott D. Rudlosky; Henry E. Fuelberg
October 2009Rethinking Real Time Electricity Pricing
Most US consumers are charged a near-constant retail price for electricity, despite substantial hourly variation in the wholesale market price. This paper evaluates the �rst program to expose residential consumers to hourly real time pricing (RTP). I �nd that enrolled households are statistically signi�cantly price elastic and that consumers responded by conserving energy during peak hours, but remarkably did not increase average consumption during o�-peak times. Welfare analysis suggests that program households were not su � ciently price elastic to generate e � ciency gains that substantially outweigh the estimated costs of the advanced electricity meters required to observe hourly consumption. Although in electricity pricing, congestion pricing, and many other settings, economists�intuition is that prices should be aligned with marginal costs, residential RTP may provide an important real-world example of a situation where this is not currently welfare-enhancing given contracting or information costs.
Hunt Allcott; Hunt Allcott; Bill Hogan; Erich Muehlegger; Larry Katz; Erin Mansur; Sendhil Mullainathan; Paul Niehaus; Chris Nosko; Ariel Pakes; Dave Rapson; Rob Stavins; Frank Wolak
Environmental Research Energy Systems Integration Real Time2) integration with CA ISO energy management system (EMS);2) integration with CA ISO energy management system (EMS);
Eto, Joe
Real-Time Grid Reliability Management PIER Final Project Report
Real-Time Grid Reliability Management PIER Final Project Report Real-Time Grid Reliability Management PIER Final Project Report Title Real-Time Grid Reliability Management PIER Final Project Report Publication Type Report Year of Publication 2008 Authors Eto, Joseph H., Manu Parashar, Bernard C. Lesieutre, and Nancy J. Lewis Pagination 62 Date Published 12/2008 Publisher LBNL City Berkeley Keywords consortium for electric reliability technology solutions (certs), energy analysis and environmental impacts department Abstract The increased need to manage California's electricity grid in real time is a result of the ongoing transition from a system operated by vertically integrated utilities serving native loads to one operated by an independent system operator supporting competitive energy markets. During this transition period, the traditional approach to reliability management - construction of new transmission lines - has not been pursued due to unresolved issues related to the financing and recovery of transmission project costs. In the absence of investments in new transmission infrastructure, the best strategy for managing reliability is to equip system operators with better real-time information about actual operating margins so that they can better understand and manage the risk of operating closer to the edge. A companion strategy is to address known deficiencies in offline modeling tools that are needed to ground the use of improved real-time tools.
Storm Lake I Wind Farm | Open Energy Information
Storm Lake I Wind Farm Storm Lake I Wind Farm Jump to: navigation, search Name Storm Lake I Wind Farm Facility Storm Lake I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Edison Mission Group Developer GE Energy Energy Purchaser MidAmerican Energy Location Buena Vista and Cherokee Counties IA Coordinates 42.57215°, -95.340693° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.57215,"lon":-95.340693,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
A Survey of Utility Experience with Real Time Pricing
with Real Time Pricing Xcel Energy (Public Service Companywith Real Time Pricing Xcel Energy, MDC (MinnesotaUtilities Division). 2001. �Xcel Energy�s Real-Time Pricing
Barbose, Galen; Goldman, Charles; Neenan, Bernie
JAVA & Parallelism/Real-time systems
Windowing Toolkit (AWT) in a memory-efficient way. JAVA Application Environment (JAE) Support enables the same applets and applications to run on other servers or platforms running the JAVA Virtual Machine. CHAPTER 2 Embedded and Real-Time JAVA According to the designers at Sun Microsystems, is JAVA also suitable for Embedded or Real-Time systems. Before proceeding further it is worth trying to define the phrase `real-time system' more precisely. 2.1 Definition of a real-time system There are many interpretations of the exact nature of a real-time system; however, they all have in common the notion of response time, the time taken for the system to generate output from some associated input. The Oxford Dictionary of Computing [48] gives the following definition of a real-time system. A real-time system is... Any system in which the time at which output is produced is significant. This is usually because the input corresponds to some movement in the physical world, and the output ha...
D. F. Nooren
Storm Lake, Iowa: Energy Resources | Open Energy Information
Storm Lake, Iowa: Energy Resources Storm Lake, Iowa: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 42.645021°, -95.199855° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.645021,"lon":-95.199855,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Storm Lake II Wind Farm | Open Energy Information
II Wind Farm II Wind Farm Jump to: navigation, search Name Storm Lake II Wind Farm Facility Storm Lake II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner AES Corp. Developer GE Energy Energy Purchaser Alliant/IES Utilities Location Buena Vista and Cherokee Counties IA Coordinates 42.655334°, -95.383651° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.655334,"lon":-95.383651,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Real time sensor for therapeutic radiation delivery
The invention is a real time sensor for therapeutic radiation. A probe is placed in or near the patient that senses in real time the dose at the location of the probe. The strength of the dose is determined by either an insertion or an exit probe. The location is determined by a series of vertical and horizontal sensing elements that gives the operator a real time read out dose location relative to placement of the patient. The increased accuracy prevents serious tissue damage to the patient by preventing overdose or delivery of a dose to a wrong location within the body. 14 figs.
Bliss, M.; Craig, R.A.; Reeder, P.L.
The invention is a real time sensor for therapeutic radiation. A probe is placed in or near the patient that senses in real time the dose at the location of the probe. The strength of the dose is determined by either an insertion or an exit probe. The location is determined by a series of vertical and horizontal sensing elements that gives the operator a real time read out dose location relative to placement of the patient. The increased accuracy prevents serious tissue damage to the patient by preventing overdose or delivery of a dose to a wrong location within the body.
Bliss, Mary (West Richland, WA); Craig, Richard A. (West Richland, WA); Reeder, Paul L. (Richland, WA)
High-Level Real-Time Concurrency
The primary goal of all real-time systems is predictability. Achieving this goal requires all levels of the system to be well de ned and have a xed worst-case execution time. These needs have resulted in the creation of overly restrictive commercial real-time systems providing only ad-hoc scheduling facilities and basic concurrent functionality. Ad-hoc scheduling makes developing, verifying, and maintaining a real-time system extremely dicult and time consuming. Basic concurrent functionality forces programmers to develop complex concurrent programs without the aid of high-level concurrency features.
Ashif S. Harji; C Ashif S. Harji
Subsystem of Data Acquisition Using the ModBus Protocol in Real Time of the Digital Electro-Hydraulic Control and Its Integration with the Integral System of Process Information of Laguna Verde Nuclear Power Plant
In this article, the achieved development is presented of a software module of data acquisition in real time using the ModBus protocol named Subsystem of Data Acquisition of the Digital Electro-Hydraulic Control and its integration with the New Data ... Keywords: Real time, Data acquisition System, Nuclear power plant, Modbus protocol, Linux, C++, TCP/IP
Efren Ruben Coronel Flores, Carlos Chairez Campos
File:06HIBHawaiiConstructionStormWaterPermit.pdf | Open Energy Information
HIBHawaiiConstructionStormWaterPermit.pdf HIBHawaiiConstructionStormWaterPermit.pdf Jump to: navigation, search File File history File usage File:06HIBHawaiiConstructionStormWaterPermit.pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution (1,275 × 1,650 pixels, file size: 40 KB, MIME type: application/pdf) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 11:59, 23 October 2012 Thumbnail for version as of 11:59, 23 October 2012 1,275 × 1,650 (40 KB) Dklein2012 (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup instructions for more information) File usage The following page links to this file: GRR/Section 6-HI-b - Hawaii Construction Storm Water Permit
Real Time Energy Pricing Web Services Implementation
Real Time Energy Pricing Web Services Implementation Speaker(s): Jim Boch Kim McCaffrey Robert Nawy Date: December 15, 2010 - 12:00pm Location: 90-3122 Seminar HostPoint of...
Real time estimation of Bayesian networks
For real time evaluation of a Bayesian network when there is not sufficient time to obtain an exact solution, a guaranteed response time, approximate solution is required. It is shown that non traditional methods utilizing estimators based on an archive ...
Robert L. Welch
Real-Time Mesoscale Prediction on workstations
Experience in performing real-time mesoscale numerical prediction forecasts using the Regional Atmospheric Modeling System (RAMS) over Colorado for a winter season on high-performance workstations is summarized. Performance evaluation is done for ...
William R. Cotton; Gregory Thompson; Paul W. Mieike Jr.
Real time PCR measurement by fluorescence anisotropy
Real-time polymerase chain reaction (PCR) is the gold-standard for quantitation in both mutation and gene expression analyses. Already this technique has found valuable clinical application in disease diagnosis and progression ...
Crane, Bryan Lee, 1976-
Real-time rendering systems in 2010
We present a case for future real-time rendering systems that support non-physically-correct global illumination techniques by using ray tracing visibility algorithms, by integrating scene management with rendering, and by executing on general-purpose ...
William R. Mark; Donald Fussell
Near Real-Time Push Middleware
Architecture.. 102 System Trial .. 109 Chapter 6 Electric vehicle smart charging and vehicle-to-gridSmart Grid, to address deficiencies in existing research, and to advance the state of the art in near real-time push architectures.
Mal, Siddhartha Byron
Real-Time Optimization Strategies for Building Systems
Our analysis indicates that it is possible to obtain energy savings of more than ... This information can be used to compute economic-optimal set-point ... This ability is key in reducing the exposure of buildings to real-time market volatility and.
A real-time, multimodal, and dimensional affect recognition system
This study focuses on the development of a real-time automatic affect recognition system. It adapts a multimodal approach, where affect information taken from two modalities are combined to arrive at an emotion label that is represented in a valence-arousal ... Keywords: dimensional labels, emotion models, multimodal, regression
Nicole Nielsen Lee; Jocelynn Cu; Merlin Teodosia Suarez
NedPower Mount Storm Wind Farm | Open Energy Information
Wind Farm Wind Farm Jump to: navigation, search Name NedPower Mount Storm Wind Farm Facility NedPower Mount Storm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Shell Wind Energy/Dominion Energy Developer NedPower/Shell Wind Energy/Dominion Energy Energy Purchaser Dominion Energy Location Grant County WV Coordinates 39.251507°, -79.178989° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.251507,"lon":-79.178989,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Axial tomography from digitized real time radiography
Axial tomography from digitized real time radiographs provides a useful tool for industrial radiography and tomography. The components of this system are: x-ray source, image intensifier, video camera, video line extractor and digitizer, data storage and reconstruction computers. With this system it is possible to view a two dimensional x-ray image in real time at each angle of rotation and select the tomography plane of interest by choosing which video line to digitize. The digitization of a video line requires less than a second making data acquisition relatively short. Further improvements on this system are planned and initial results are reported.
Zolnay, A.S.; McDonald, W.M.; Doupont, P.A.; McKinney, R.L.; Lee, M.M.
Axial Tomography from Digitized Real Time Radiography
DOE R&D Accomplishments (OSTI)
Zolnay, A. S.; McDonald, W. M.; Doupont, P. A.; McKinney, R. L.; Lee, M. M.
File:06COBConstructionStormWaterPermit.pdf | Open Energy Information
COBConstructionStormWaterPermit.pdf COBConstructionStormWaterPermit.pdf Jump to: navigation, search File File history File usage File:06COBConstructionStormWaterPermit.pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Go to page 1 2 Go! next page → next page → Full resolution (1,275 × 1,650 pixels, file size: 61 KB, MIME type: application/pdf, 2 pages) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 13:56, 4 February 2013 Thumbnail for version as of 13:56, 4 February 2013 1,275 × 1,650, 2 pages (61 KB) Alevine (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup instructions for more information) File usage The following page links to this file:
Efficient real-time divisible load scheduling
Providing QoS and performance guarantees to arbitrarily divisible loads has become a significant problem for many cluster-based research computing facilities. While progress is being made in scheduling arbitrarily divisible loads, current approaches ... Keywords: Arbitrarily divisible loads, Cluster computing, Real-time computing, Scheduling efficiency
Anwar Mamat; Ying Lu; Jitender Deogun; Steve Goddard
Real-time var control by SCADA
This paper outlines the operation and advantages of the SCADA capacitor control called CAPCON, developed by the Virginia Electric and Power Company (Virginia Power). CAPCON is used to control vars system-wide by switching substation capacitor banks based on real-time var and voltage data instead of the traditional time clock method.
Girotti, T.B.; Tweed, N.B.; Houser, N.R. (Virginia Power Co., Richmond, VA (USA))
Towards real-time dynamic spectrum auctions
In this paper, we propose a low-complexity auction framework to distribute spectrum in real-time among a large number of wireless users with dynamic traffic. Our design consists of a compact and highly expressive bidding format, two pricing models to ... Keywords: Algorithms, Auctions, Spectrum
Sorabh Gandhi; Chiranjeeb Buragohain; Lili Cao; Haitao Zheng; Subhash Suri
Real-time signal processing IV
The following topics were dealt with: parallel computation algorithms and architectures; very high-speed integrated circuit processing; multiple processor systems; real-time signal processing technologies and applications. 48 papers were presented, 40 of which are published in full in the present proceedings. Abstracts of individual papers can be found under the relevant classification codes in this or other issues.
Not Available
Real-time individualized virtual humans
This tutorial will present the latest techniques to model fast individualized animatable virtual humans for Real-Time applications. As a human is composed of a head and a body, we will analyze how these two parts can be modeled and globally animated ...
Nadia Magnenat-Thalmann; Daniel Thalmann
Real time video streaming over heterogeneous networks
Technological advances allow handheld devices to be equipped with faster processors and wireless interfaces, making the performance comparable to laptop Computers. In this paper, we describe real-time video streaming over heterogeneous networks namely ... Keywords: GPRS-EDGE, IEEE802.11, IETF, MPEG-4, PSS, RTCP, RTP, RTSP, bluetooth, performance, piconet, quality of service, video streaming, wireless LANs
Mohammed A. Qadeer; Rehan Ahmad; Mohd Siddique Khan; Tauseef Ahmad
User customizable real-time fur
Recent advances in real-time fur rendering have enabled the development of more realistic furry characters. In this sketch, we outline a number of advances to the shell and fin based fur rendering technique by Lengyel et al [2001] using the pixel and ...
John Isidoro; Jason L. Mitchell
Real Time Pricing and the Real Live Firm
response to electricity real-time prices: short run and longwith respect to real time prices has not been extensivelywere linked to real-time prices, most customers indicated
Moezzi, Mithra; Goldman, Charles; Sezgen, Osman; Bharvirkar, Ranjit; Hopper, Nicole
Response to Electricity Real-Time Prices: Short Run and Longat the prevailing real time price. Because only marginalService Rate RTP: Real Time Price Rate Experimental Day
Wealth Transfers from Implementing Real-Time Retail Electricity Pricing
who are charged real-time prices. I discuss the politicalif customers exhibit real-time price elasticities of -0.1, Iit sees the actual real-time electricity price and responds.
Borenstein, Severin
REAL TIME GRID RELIABILITY REAL TIME GRID RELIABILITY MANAGEMENT 2005 Prepared For: California Energy Commission Public Interest Energy Research Program Prepared By: Lawrence Berkeley National Laboratory PIER FINAL PROJECT REPORT LBNL-62368 ii Legal Notice This report was prepared as a result of work sponsored by the California Energy Commission (Energy Commission). It does not necessarily represent the views of the Energy Commission, its employees, or the State of California. The Energy Commission, the State of California, its employees, contractors, and subcontractors make no warrant, express or implied, and assume no legal liability for the information in this report; nor does any party represent that the use of this information will not infringe upon privately owned rights. This report has not been
Survey of Utility Experience with Real Time Pricing List ofUtility Experience with Real Time Pricing Table of Contents Acknowledgements iii Table of Contents..v List
Multi-Criteria Optimisation using Past, Real Time and Predictive...
Multi-Criteria Optimisation using Past, Real Time and Predictive Performance Benchmarks Title Multi-Criteria Optimisation using Past, Real Time and Predictive Performance...
Real-Time Chemical Imaging of Bacterial Biofilm Development
Real-Time Chemical Imaging of Bacterial Biofilm Development Real-Time Chemical Imaging of Bacterial Biofilm Development Print Wednesday, 25 August 2010 00:00 Scientists have...
Appendix C: California ISO Real Time Voltage Security Assessment...
C: California ISO Real Time Voltage Security Assessment (VSA) Prototype Functional SpecificationsPrototype Development Title Appendix C: California ISO Real Time Voltage Security...
Appendix B: California ISO Real Time Voltage Security Assessment...
B: California ISO Real Time Voltage Security Assessment (VSA) Summary Report Title Appendix B: California ISO Real Time Voltage Security Assessment (VSA) Summary Report Publication...
Appendix A: California ISO Real Time Voltage Security Assessment...
A: California ISO Real Time Voltage Security Assessment (VSA) Project: Summary of Survey Results on Methodologies for use in Real-Time Voltage Security Assessment Title Appendix A:...
California ISO Real-Time Voltage Security Assessment (VSA) Project...
Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT California ISO Real-Time Voltage Security Assessment (VSA) Project: Summary of Survey Results on Methodologies...
Real time gamma-ray signature identifier
A real time gamma-ray signature/source identification method and system using principal components analysis (PCA) for transforming and substantially reducing one or more comprehensive spectral libraries of nuclear materials types and configurations into a corresponding concise representation/signature(s) representing and indexing each individual predetermined spectrum in principal component (PC) space, wherein an unknown gamma-ray signature may be compared against the representative signature to find a match or at least characterize the unknown signature from among all the entries in the library with a single regression or simple projection into the PC space, so as to substantially reduce processing time and computing resources and enable real-time characterization and/or identification.
Rowland, Mark (Alamo, CA); Gosnell, Tom B. (Moraga, CA); Ham, Cheryl (Livermore, CA); Perkins, Dwight (Livermore, CA); Wong, James (Dublin, CA)
CRTF Real-Time Aperture Flux system
The Real-Time Aperture Flux system (TRAF) is a test measurement system designed to determine the input power/unit area (flux density) during solar experiments conducted at the Central Receiver Test Facility, Sandia National Laboratories, Albuquerque, New Mexico. The RTAF is capable of using both thermal sensors and photon sensors to determine the flux densities in the RTAF measuring plane. These data are manipulated in various ways to derive input power and flux density distribution to solar experiments.
Davis, D.B.
Resource Reclaiming in Multiprocessor Real-Time Systems
Most real-time scheduling algorithms schedule tasks with respect to their worst case computation times. Resource reclaiming refers to the problem of utilizing the resources left unused by a task when it executes less than its worst case computation time, or when a task is deleted from the current schedule. Resource reclaiming is a very important issue in dynamic real-time multiprocessor environments. In this paper, we present dynamic resource reclaiming algorithms that are effective, avoids any run time anomalies, and have bounded overhead cost that is independent of the number of tasks in the schedule. Each Task is assumed to have a worst case computation time, a deadline, and a set of resource requirements. The algorithms utilize the information given in a multiprocessor task schedule and perform on-line local optimization. The effectiveness of the algorithms is demonstrated through simulation studies. The algorithms have also been implemented in the Spring Kernel [15].
Chia Shen; Krithi Ramamritham; John A. Stankovic
Low-Power Design for Real-Time Systems
Real-time Systems often are located in the special environments where the power consumption is a big concern. Upon presence of timing constraints, the low power design on the real-time systems has significant impact on the performance as well as the ... Keywords: embedded system, instruction set, low power design, real time operating system, real time scheduling
Sheng-Tzong Cheng; Chia-Mei Chen; Jing-Wen Hwang
Real-time static voltage scaling on multiprocessors
We propose a real-time static voltage scaling (RT-SVS) technique called T-L plane transforming, which is an extension of LLREF, an optimal real-time scheduling algorithm for multiprocessor systems. We present two RT-SVS algorithms for different types ... Keywords: energy consumption, multiprocessor systems, real-time scheduling, real-time voltage scaling
Kenji Funaoka; Shinpei Kato; Nobuyuki Yamasaki
Looking at Transistor Gate Oxide Formation in Real Time
Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.
Residential Real-time Price Response Simulation
The electric industry is gaining experience with innovative price responsive demand pilots and limited roll-outs to customers. One of these pilots is investigating real-time pricing signals to engage end-use systems and local distributed generation and storage in a distributed optimization process. Attractive aspects about the approach include strong scalability characteristics, simplified interfaces between automation devices, and the adaptability to integrate a wide variety of devices and systems. Experience in this nascent field is revealing a rich array of for engineering decisions and the application of complexity theory. To test the decisions, computer simulations are used to reveal insights about design, demand elasticity, and the limits of response (including consumer fatigue). Agent-based approaches lend themselves well in the simulation to modeling the participation and interaction of each piece of equipment on a distribution feeder. This paper discusses rate design and simulation experiences at the distribution feeder level where consumers and their HVAC systems and water heaters on a feeder receive real-time pricing signals.
Widergren, Steven E.; Subbarao, Krishnappa; Chassin, David P.; Fuller, Jason C.; Pratt, Robert G.
Real Time Simulation of Power Grid Disruptions
DOE-OE and DOE-SC workshops (Reference 1-3) identified the key power grid problem that requires insight addressable by the next generation of exascale computing is coupling of real-time data streams (1-2 TB per hour) as the streams are ingested to dynamic models. These models would then identify predicted disruptions in time (2-4 seconds) to trigger the smart grid s self healing functions. This project attempted to establish the feasibility of this approach and defined the scientific issues, and demonstrated example solutions to important smart grid simulation problems. These objectives were accomplished by 1) using the existing frequency recorders on the national grid to establish a representative and scalable real-time data stream; 2) invoking ORNL signature identification algorithms; 3) modeling dynamically a representative region of the Eastern interconnect using an institutional cluster, measuring the scalability and computational benchmarks for a national capability; and 4) constructing a prototype simulation for the system s concept of smart grid deployment. The delivered ORNL enduring capability included: 1) data processing and simulation metrics to design a national capability justifying exascale applications; 2) Software and intellectual property built around the example solutions; 3) demonstrated dynamic models to design few second self-healing.
Chinthavali, Supriya [ORNL; Dimitrovski, Aleksandar D [ORNL; Fernandez, Steven J [ORNL; Groer, Christopher S [ORNL; Nutaro, James J [ORNL; Olama, Mohammed M [ORNL; Omitaomu, Olufemi A [ORNL; Shankar, Mallikarjun [ORNL; Spafford, Kyle L [ORNL; Vacaliuc, Bogdan [ORNL
Real-TIme Raman Gas Composition Analyzer
Analyzer Analyzer Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking collaborative research partners interested in implementing United States Provisional Patent Application entitled "Gas Sensing System Employing Raman Scattering". Disclosed in this application is a gas analyzing sensor that characterizes gaseous fuel, exhaust gases, or other process gas streams. The sensor reports concentrations of all majority gases at better than 0.3% accuracy in 1 second or less, and can be used for real-time gas analysis and system control. The sensor relies on novel techniques to enhance usually weak spontaneous Raman emissions from sample gases, enabling the application of Raman spectroscopy to rapid gas analysis. No commercially available sensor or sensing
Optimal, real-time control--colliders
With reasonable definitions, optimal control is possible for both classical and quantal systems with new approaches called PISC(Parallel) and NISC(Neural) from analogy with RISC (Reduced Instruction Set Computing). If control equals interaction, observation and comparison to some figure of merit with interaction via external fields, then optimization comes from varying these fields to give design or operating goals. Structural stability can then give us tolerance and design constraints. But simulations use simplified models, are not in real-time and assume fixed or stationary conditions, so optimal control goes far beyond convergence rates of algorithms. It is inseparable from design and this has many implications for colliders. 12 refs., 3 figs.
Spencer, J.E.
Real-time scheduling with regenerative energy
This paper investigates real-time scheduling in a system whose energy reservoir is replenished by an environmental power source. The execution of tasks is deemed primarily energy-driven, i.e., a task may only respect its deadline if its energy demand can be satisfied early enough. Hence, a useful scheduling policy should account for properties of the energy source, capacity of the energy storage as well as power dissipation of the single tasks. We show that conventional scheduling algorithms (like e.g. EDF) are not suitable for this scenario. Based on this motivation, we state and prove optimal scheduling algorithms that jointly handle constraints from both energy and time domain. Furthermore, an offline schedulability test for a set of periodic or even bursty tasks is presented. Finally, we validate the proposed theory by means of simulation and compare our algorithms with the classical Earliest Deadline First Algorithm. 1.
C. Moser; D. Brunelli; L. Thiele; L. Benini
Rethinking Real-Time Electricity Pricing
Most US consumers are charged a near-constant retail price for electricity, despite substantial hourly variation in the wholesale market price. This paper evaluates the �rst program to expose residential consumers to hourly real-time pricing (RTP). I �nd that enrolled households are statistically signi�cantly price elastic and that consumers responded by conserving energy during peak hours, but remarkably did not increase average consumption during o�-peak times. The program increased consumer surplus by $10 per household per year. While this is only one to two percent of electricity costs, it illustrates a potential additional bene�t from investment in retail Smart Grid applications, including the advanced electricity meters required to observe a household�s hourly consumption.
Hunt Allcott; Bill Hogan; Erich Muehlegger; Larry Katz; Erin Mansur; Sendhil Mullainathan; Paul Niehaus; Chris Nosko; Ariel Pakes; Dave Rapson; Rob Stavins; Frank Wolak
Real time speech formant analyzer and display
A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user. 19 figs.
Holland, G.E.; Struve, W.S.; Homer, J.F.
NOAA's nowCOAST Web Mapping Portal to Near-Real-Time Coastal...
NOAA's nowCOAST Web Mapping Portal to Near-Real-Time Coastal Information Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov ...
Real Time Search User Behavior Real time search is an increasingly important area of
. Query Terms: the terms as entered by the user. Key concepts for search (i.e., the process of a searcher. The most frequently used terms accounted for only 0.03% of the total terms. Concerning search topics Web search. Searchers of real time content often repeat queries overtime, perhaps indicating long term
Jansen, James
Real-Time Precipitation Estimation Based on Index Station Percentiles
Operational hydrologic models are typically calibrated using meteorological inputs derived from retrospective station data that are commonly not available in real time. Inconsistencies between the calibration and (generally sparser) real-time ...
Qiuhong Tang; Andrew W. Wood; Dennis P. Lettenmaier
2002. �Industrial response to electricity real-time prices:industrial customer operated their facility using hourly electricity prices
Efficient scheduling of soft real-time applications on multiprocessors
In soft real-time applications, tasks are allowed to miss their deadlines. Thus, less-costly scheduling algorithms can be used at the price of occasional violations of timing constraints. This may be acceptable if reasonable tardiness bounds (i.e., bounds ... Keywords: Fairness, multiprocessors, quality-of-service, real-time scheduling, soft real-time applications, tardiness
Anand Srinivasan; James H. Anderson
Real time reactive programming in lucid enriched with contexts
We present a synchronous approach to real-time reactive programming in Lucid enriched with contexts as first class objects. The declarative intensional approach allows real-time reactive programs to manipulate both events and state-based representations ... Keywords: contexts, formal verification, intensional programming, real-time reactive programming
Kaiyu Wan; Vasu Alagar; Joey Paquet
Optimal Real-time Dispatch for Integrated Energy Systems
In these figures the real-time price is plotted on the rightto 6:00 PM 22.214.171.124 Real-time Prices City specific hourlyIn these figures the real-time price is plotted on the right
Firestone, Ryan Michael
Platform-independent design for embedded real-time systems
With the increasing complexity of the emerging embedded real-time systems, traditional design approaches can not provide sufficient support for the development of these systems anymore. They especially lack the ability to trace and analyse real-time ... Keywords: platform-independent, real-time, system design
Jinfeng Huang; Jeroen P. M. Voeten; Andre Ventevogel; Leo van Bokhoven
Error computation for predictable real-time software synthesis
Synthesizing an implementation from a model in a predictable way is one of the major challenges in real-time system design. In our previous work we addressed this problem by generating in real-time an execution path through a model and by synchronizing ... Keywords: error computation, predictable design, property prediction, real-time systems
Jeroen Voeten; Oana Florescu; Jinfeng Huang; Henk Corporaal
Ship-Mounted Real-Time Surface Observational System on board Indian Vessels for Validation and Refinement of Model Forcing Fields
A network of ship-mounted real-time Automatic Weather Stations integrated with Indian geosynchronous satellites [Indian National Satellites (INSATs)] 3A and 3C, named Indian National Centre for Ocean Information Services Real-Time Automatic ...
R. Harikumar; T. M. Balakrishnan Nair; G. S. Bhat; Shailesh Nayak; Venkat Shesu Reddem; S. S. C. Shenoi
Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.
Real-time power system analysis: Feasibility and critical technologies
Modern electrical grids face increasing demands to serve new or unusual loads, to integrate unconventional new resources, and to transmit power in unforeseen ways. These expanding demands will require utilities to operate existing systems closer to steady-state limits, thus increasing the performance requirements of operation and control systems. In this paper we use the challenges posed by power system stability analysis to motivate a discussion of the technologies required to advance the state-of-the-art in real-time power system control. We consider the computational requirements of system stability analysis techniques (transient simulation, eigenanalysis, time-domain fitting, and frequency-response analysis). Additional requirements are imposed by the necessity that the computational results support either human or automated decision making. We then address the role that critical computer and information technologies must play in addressing these needs. Our emphasis is on high performance computing, where we consider both hardware issues and algorithmic requirements. Data management, user interface, visualization, and expert system technologies are also discussed. We conclude by suggesting elements of a strategic plan for creating the next generation of computer tools for power system analysis, and for their use in real-time control applications. 18 refs.
Pearson, E.W.; Trudnowski, D.J. (Battelle Pacific Northwest Lab., Richland, WA (United States)); Hauer, J.F.; Watkins, D.S. (USDOE Bonneville Power Administration, Portland, OR (United States))
May 21, 2011 - Getting Useful Real Time Feedback About Your Program Webinar (text version)
1, 2011 - Getting Useful Real Time Feedback About 1, 2011 - Getting Useful Real Time Feedback About Your Program Webinar (text version) Below is the text version of the Webinar titled "Getting Useful Real Time Feedback About Your Program" originally presented on May 21, 2011. (Please note: portions of the transcript below may be incomplete where indicated with an underlined placeholder space. Please refer to the webinar presentation recording and slides for additional information.) Operator: The broadcast is now starting. All attendees are listen only mode. Sargon de Jesus: Good afternoon. My name is Sargon de Jesus and I am with ERG, a contractor supporting the U.S. Department of Energy Better Buildings program. I wanna thank you for joining today's webinar titled "Getting useful real time feedback about your
Real Time Flux Control in PM Motors
Significant research at the Oak Ridge National Laboratory (ORNL) Power Electronics and Electric Machinery Research Center (PEEMRC) is being conducted to develop ways to increase (1) torque, (2) speed range, and (3) efficiency of traction electric motors for hybrid electric vehicles (HEV) within existing current and voltage bounds. Current is limited by the inverter semiconductor devices' capability and voltage is limited by the stator wire insulation's ability to withstand the maximum back-electromotive force (emf), which occurs at the upper end of the speed range. One research track has been to explore ways to control the path and magnitude of magnetic flux while the motor is operating. The phrase, real time flux control (RTFC), refers to this mode of operation in which system parameters are changed while the motor is operating to improve its performance and speed range. RTFC has potential to meet an increased torque demand by introducing additional flux through the main air gap from an external source. It can augment the speed range by diverting flux away from the main air gap to reduce back-emf at high speeds. Conventional RTFC technology is known as vector control [1]. Vector control decomposes the stator current into two components; one that produces torque and a second that opposes (weakens) the magnetic field generated by the rotor, thereby requiring more overall stator current and reducing the efficiency. Efficiency can be improved by selecting a RTFC method that reduces the back-emf without increasing the average current. This favors methods that use pulse currents or very low currents to achieve field weakening. Foremost in ORNL's effort to develop flux control is the work of J. S. Hsu. Early research [2,3] introduced direct control of air-gap flux in permanent magnet (PM) machines and demonstrated it with a flux-controlled generator. The configuration eliminates the problem of demagnetization because it diverts all the flux from the magnets instead of trying to oppose it. It is robust and could be particularly useful for PM generators and electric vehicle drives. Recent efforts have introduced a brushless machine that transfers a magneto-motive force (MMF) generated by a stationary excitation coil to the rotor [4]. Although a conventional PM machine may be field weakened using vector control, the air-gap flux density cannot be effectively enhanced. In Hsu's new machine, the magnetic field generated by the rotor's PM may be augmented by the field from the stationery excitation coil and channeled with flux guides to its desired destination to enhance the air-gap flux that produces torque. The magnetic field can also be weakened by reversing the current in the stationary excitation winding. A patent for advanced technology in this area is pending. Several additional RTFC methods have been discussed in open literature. These include methods of changing the number of poles by magnetizing and demagnetizing the magnets poles with pulses of current corresponding to direct-axis (d-axis) current of vector control [5,6], changing the number of stator coils [7], and controlling the air gap [8]. Test experience has shown that the magnet strengths may vary and weaken naturally as rotor temperature increases suggesting that careful control of the rotor temperature, which is no easy task, could yield another method of RTFC. The purpose of this report is to (1) examine the interaction of rotor and stator flux with regard to RTFC, (2) review and summarize the status of RTFC technology, and (3) compare and evaluate methods for RTFC with respect to maturity, advantages and limitations, deployment difficulty and relative complexity.
Otaduy, P.J.
pdf� [139]��Common�Information�Model�(CIM):�CIM�10�Version�,�EPRI,�Palo�Alto,�CA:�2001,�1001976. �utilization of CA ISO CIM data Input Data Requirements
Eto, Joseph H.
Adaptive Real-Time Methodology for Optimizing Energy-Efficient...
Email Adaptive Real-Time Methodology for Optimizing Energy-Efficient Computing Dynamic voltage and frequency scaling (DVFS) is an effective way to reduce energy and power...
CA. November 15. Electric Power Research Institute (EPRI).with Real Time Pricing Electric Power Research Institute (Electric) 67 American Electric Power (Public Service
Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing...
Jul 2, 2011 ... Abstract: We propose real-time optimization strategies for energy ... reductions of energy intensity compared with traditional strategies.
Low Dose Radiation Research Program: Real-Time Molecular Study...
Real-Time Molecular Study of Bystander Effects Using Imaging and Nano-Particle Optics Mohan Natarajan University of Texas Health Science Center Why this Project? To develop...
Sensor Technology for Real Time Monitoring of Molten Salt ...
Presentation Title, Sensor Technology for Real Time Monitoring of Molten Salt Electrolytes During Nuclear Fuel Electrorefining. Author(s), Michael F. Simpson,�...
Method for real-time analysis of biosensor data
Disclosure Number 200501550 Technology Summary This invention is a method for real-time rapid analysis of data that is collected by biosensors or ...
Towards a High Quality Real-Time Graphics Pipeline.
??Modern graphics hardware pipelines create photorealistic images with high geometric complexity in real time. The quality is constantly improving and advanced techniques from feature film� (more)
Munkberg, Jacob
Vector Graphics for Real-time 3D Rendering.
??Algorithms are presented that enable the use of vector graphics representations of images in texture maps for 3D real time rendering. Vector graphics images are� (more)
Qin, Zheng
Tracking Living Cells as They Differentiate in Real Time
at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time,...
MONOCULAR OPTICAL FLOW FOR REAL-TIME VISION SYSTEMS Stephen M. Benoit and Frank P. Ferrie TR-CIM-96 268510 FAX: 514 398-7348 Email: firstname.lastname@example.com #12;MONOCULAR OPTICAL FLOW FOR REAL-TIME VISION SYSTEMS
Dudek, Gregory
Dynamic software updates for real-time systems
Seamlessly updating software in running systems has recently gained momentum. Dynamically updating the software of real-time embedded systems, however, still poses numerous challenges: such systems must meet hard deadlines, cope with limited resources, ... Keywords: dynamic software update, embedded, real-time
Michael Wahler; Stefan Richter; Manuel Oriol
High-speed real-time multi-rate simulation
Recent research has focused on developing techniques that use digital signal processors (DSPs) and field-programmable gate arrays (FPGAs) to support real-time simulation with frame times of a few microseconds or less. These techniques can be used ... Keywords: FPGA, distributed, high-speed, multi-rate, real-time
Roy Crosbie; Dale Word; John Zenor; Richard Bednar; Wilfred Ghonsalves; Narain Hingorani
A timeband framework for modelling real-time systems
Complex real-time systems must integrate physical processes with digital control, human operation and organisational structures. New scientific foundations are required for specifying, designing and implementing these systems. One key challenge is to ... Keywords: Cyber physical, Modelling, Real-time systems
Alan Burns; Ian J. Hayes
Analysis of Wind Generation System by Real-Time Simulation
Due to the demand of green energy, the number of wind turbines installed has been increased drastically worldwide. Comparing with the traditional utility generation systems, the dynamic characteristic and response of wind farms are totally different. ... Keywords: Doubly-fed induction generator, real-time simulation, PC cluster-based real-time simulator, wind farm
H. C. Su; G. W. Chang; H. M. Huang; K. K. Jen; G. C. Chung; G. Z. Wu
Detection and tracking of driver's hands in real time
In this paper a complete driver's hands detection and tracking system suitable for working in real time conditions has been developed. The proposed system has been successfully tested in close-real world conditions in different scenarios on a very realistic ... Keywords: automotive application, image processing, real time, tracking
Ra�l Crespo; Isaac Mart�n De Diego; Cristina Conde; Enrique Cabello
Real-time deformable models for surgery simulation: a survey
Simulating the behaviour of elastic objects in real time is one of the current objectives of computer graphics. One of its fields of application lies in virtual reality, mainly in surgery simulation systems. In computer graphics, the models used for ... Keywords: Animation, Deformable model, Elasticity, Real time, Surgery simulation
U. Meier; O. L�pez; C. Monserrat; M. C. Juan; M. Alca�iz
Real-time Remote Sensing of Snowmobiles Emissions at
Real-time Remote Sensing of Snowmobiles Emissions at Yellowstone National Park: An Oxygenated Fuel 68509 #12;Real-time Remote Sensing of Snowmobile Emissions at Yellowstone National Park 2 Executive Summary In the winter of 1999, the University of Denver conducted a remote sensing study at Yellowstone
Denver, University of
Neural Networks for Real-Time Traffic Signal Control
Real-time traffic signal control is an integral part of the urban traffic control system, and providing effective real-time traffic signal control for a large complex traffic network is an extremely challenging distributed control problem. This paper ... Keywords: Distributed control, hybrid model, neural control, online learning, traffic signal control
D. Srinivasan; Min Chee Choy; R. L. Cheu
Matching customer requests to service offerings in real-time
Classic request-response Service-oriented architecture (SOA) has reached a level of maturity where SOA inspired extensions are enabling new and creative domains like the Internet of Things, real-time business or real-time Web. These new domains impose ... Keywords: SOA, complex event processing, mediation, nonfunctional properties, service selection
Marcel Tilly; Stephan Reiff-Marganiec
Overhead elimination mechanisms in real-time systems
The OEM (Overhead Elimination Mechanism), a scheduler for finding minimal overheads with reduced context switches in real-time systems, was developed using procedural methods. Software produced by these methods has often proven to be inflexible and difficult ... Keywords: Real-time scheduling, context switches, object-oriented, procedural, rate monotonic algorithm
Ilhyun Lee; Haesun K. Lee; Narayan Debnath
Towards the compositional verification of real-time UML designs
Current techniques for the verification of software as e.g. model checking are limited when it comes to the verification of complex distributed embedded real-time systems. Our approach addresses this problem and in particular the state explosion problem ... Keywords: embedded systems, object constraint language (OCL), pattern, real-time, unified modelling language (UML)
Holger Giese; Matthias Tichy; Sven Burmester; Wilhelm Sch�fer; Stephan Flake
Real-Time Camera Planning for Navigation in Virtual Environments
In this work, we have developed a real-time camera control module for navigation in virtual environments. With this module, the tracking motion of a third-person camera can be generated automatically to allow a user to focus on the control of an avatar. ... Keywords: Budget-based Planning, Intelligent Cam-era Control, Probabilistic Roadmap, Real-Time Camera Planning
Tsai-Yen Li; Chung-Chiang Cheng
Challenge benchmarks for verification of real-time programs
Real-time systems, and in particular safety-critical systems, are a rich source of challenges for the program verification community as software errors can have catastrophic consequences. Unfortunately, it is nearly impossible to find representative ... Keywords: java, real-time, verification
Tomas Kalibera; Pavel Parizek; Ghaith Haddad; Gary T. Leavens; Jan Vitek
Real-time ocean surge warning system, meadowlands district of New Jersey
Low-lying coastal, residential and industrial areas are of great concern to emergency managers because of their susceptibility to tidal flooding and sea level surge. Fairly accurate warnings of sea surges do exist, as does information about property ... Keywords: emergency management, emergency management system, flood, information dissemination, real-time ocean surge warnings, sensor network, sensor system, tide gates
Francisco Artigas; Soon Ae Chun; Yogi Sookhu
Real-time wideband holographic surveillance system
A wideband holographic surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply a three dimensional backward wave algorithm. 28 figs.
Sheen, D.M.; Collins, H.D.; Hall, T.E.; McMakin, D.L.; Gribble, R.P.; Severtsen, R.H.; Prince, J.M.; Reid, L.D.
GRR/Section 6-UT-b - Storm Water Permit | Open Energy Information
6-UT-b - Storm Water Permit 6-UT-b - Storm Water Permit < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 6-UT-b - Storm Water Permit 06UTBStormWaterPermit.pdf Click to View Fullscreen Contact Agencies Utah Division of Water Quality Regulations & Policies Utah Water Quality Act Clean Water Act Triggers None specified Click "Edit With Form" above to add content 06UTBStormWaterPermit.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative The construction storm water permit process is required to prevent storm water pollution. The permits are administered by the Utah Division of Water
Real time three dimensional sensing system
The invention is a three dimensional sensing system which utilizes two flexibly located cameras for receiving and recording visual information with respect to a sensed object illuminated by a series of light planes. Each pixel of each image is converted to a digital word and the words are grouped into stripes, each stripe comprising contiguous pixels. One pixel of each stripe in one image is selected and an epi-polar line of that point is drawn in the other image. The three dimensional coordinate of each selected point is determined by determining the point on said epi-polar line which also lies on a stripe in the second image and which is closest to a known light plane.
Gordon, Steven J. (Boston, MA)
The invention is a three dimensional sensing system which utilizes two flexibly located cameras for receiving and recording visual information with respect to a sensed object illuminated by a series of light planes. Each pixel of each image is converted to a digital word and the words are grouped into stripes, each stripe comprising contiguous pixels. One pixel of each stripe in one image is selected and an epi-polar line of that point is drawn in the other image. The three dimensional coordinate of each selected point is determined by determining the point on said epi-polar line which also lies on a stripe in the second image and which is closest to a known light plane. 7 figs.
Gordon, S.J.
Reviewing real-time performance of nuclear reactor safety systems
The purpose of this paper is to recommend regulatory guidance for reviewers examining real-time performance of computer-based safety systems used in nuclear power plants. Three areas of guidance are covered in this report. The first area covers how to determine if, when, and what prototypes should be required of developers to make a convincing demonstration that specific problems have been solved or that performance goals have been met. The second area has recommendations for timing analyses that will prove that the real-time system will meet its safety-imposed deadlines. The third area has description of means for assessing expected or actual real-time performance before, during, and after development is completed. To ensure that the delivered real-time software product meets performance goals, the paper recommends certain types of code-execution and communications scheduling. Technical background is provided in the appendix on methods of timing analysis, scheduling real-time computations, prototyping, real-time software development approaches, modeling and measurement, and real-time operating systems.
Preckshot, G.G. [Lawrence Livermore National Lab., CA (United States)
RTJBench: A RealTime Java Benchmarking Framework
Abstract. The paper gives an overview of RTJBench, a framework designed to assist in the task of benchmarking programs written in the Real-Time Specification for Java, but with potentially more general applicability. RTJBench extends the JUnit framework for unit testing of Java applications with tools for real-time environment configuration, simple data processing and configurable graphical presentation services. We present design principles of RTJBench and give an example of a benchmarking suite we have been using for daily regression benchmarking of the Open Virtual Machine. Keywords: Benchmarking, regression benchmarking, Real-Time Specification for Java
Marek Prochazka; Andrey Madan; Jan Vitek; Wenchang Liu
Formal specification of real-time dependable systems
The complex and critical nature of real-time, dependable systems (henceforth referred to as RTD systems) necessitates the use of analyzable specifications and specification analysis techniques supporting the assessment of behavioral, safety-critical, ... Keywords: analyzable specifications, behavioral quality, consistency check, fault-tolerant quality, formal reasoning systems, formal specification, multilevel description, nonfunctional qualities, precise specification language, real-time dependable systems, real-time systems, safety-critical quality, safety-critical software, security of data, security quality, software fault tolerance, specification analysis techniques, specification languages, system monitoring
Use of GIS as a Real Time Decision Support System for Irrigation Districts
The objectives were to provide the districts with a simple tool that would improve the availability of pumps and gates data from the existing SCADA system, improve the management of water orders, and allow access of data by account holders through the internet. An important component of the project was to interact and train District personnel. The final product of the project is a website, where pump and gates operations and water orders information are displayed in real-time, along with links to related historical data and other information. The on-line tool has three main components: 1) possibility to query real time and historic data from a new reorganized database created in our server; 2) status maps for display in real time of selected spatial information and alarms; 3) interactive maps for display of desired spatial information in real time and query historic spatial information. The main meaning of the status maps is to enable a friendlier and quicker access to the frequently used data. SCADA data include On/Off, current flow, upstream and downstream water level, and gate position. Water account data include pending orders, payment delinquents, and water balances.
Bonaiti, G.; Fipps, G.
Microwave Plasma Monitoring System For Real-Time Elemental Analysis
Microwave Plasma Monitoring System For Real-Time Elemental Analysis Microwave Plasma Monitoring System For Real-Time Elemental Analysis Microwave Plasma Monitoring System For Real-Time Elemental Analysis The invention apparatus can also be used to monitor for the presence of halogens, sulfur and silicon. Available for thumbnail of Feynman Center (505) 665-9090 Email Microwave Plasma Monitoring System For Real-Time Elemental Analysis There has been invented a process for analyzing ambient air in a microwave induced plasma without use of an additional carrier gas. There has also been invented an apparatus for analyzing ambient air, other sample gas, or nebulized and desolvated liquids wherein a novel arrangement of plasma gas and sample gas conduits is used to enhance dependability of the plasma. This apparatus embodiment of the invention has a concentric arrangement of
Real-time energy management control for hybrid electric powertrains
This paper focuses on embedded control of a hybrid powertrain concepts for mobile vehicle applications. Optimal robust control approach is used to develop a real-time energy management strategy. The main idea is to store the normally wasted mechanical ...
Mohamed Zaher, Sabri Cetinkunt
Real time reconstruction of quasiperiodic multi parameter physiological signals
A modern intensive care unit (ICU) has automated analysis systems that depend on continuous uninterrupted real time monitoring of physiological signals such as electrocardiogram (ECG), arterial blood pressure (ABP), and ...
Ganeshapillai, Gartheeban
Real-Time ALARA Plan Tracking Tool: Phase 1
The primary objective of this project was to develop a generic industry template for tracking and trending live, Real Time (RT) exposure data by task and RWP (Radiation Work Permit).
FBLT: a real-time contention manager with improved schedulability
We consider software transactional memory (STM) concurrency control for embedded multicore real-time software, and present a novel contention manager for resolving transactional conflicts, called FBLT. We upper bound transactional retries and task response ...
Mohammed Elshambakey, Binoy Ravindran
Real-time analog acquisition of electrophysiological signals with Soma
Soma is a high-density recording system for real-time acquisition and analysis of extracellular electrophysiological signals. Here I describe the design, implementation, and evaluation of the Soma Acquisition Board, an ...
Jonas, Eric Michael
Device Specific Real-time Energy Monitoring, Control, and Dynamic...
Device Specific Real-time Energy Monitoring, Control, and Dynamic Demand Response Solutions Speaker(s): Jake Masters Olcay Ungun Date: February 23, 2010 - 12:00pm Location: 90-3122...
List Processing in Real Time on a Serial Computer
A real-time list processing system is one in which the time required by each elementary list operation (CONS, CAR, CDR, RPLACA, RPLACD, EQ, and ATOM in LISP) is bounded by a (small) constant. Classical list processing ...
Baker, Henry G. Jr.
Towards Near Real-Time Availability With Enhanced Accuracy Turbo...
Turbo" ARSCL Towards Near Real-Time Availability With Enhanced Accuracy Turbo-ARSCL Project The goal is to speed delivery of the widely-used ARSCL product while improving the...
Decoupled Sampling for Real-Time Graphics Pipelines
We propose decoupled sampling, an approach that decouples shading from visibility sampling in order to enable motion blur and depth-of-field at reduced cost. More generally, it enables extensions of modern real-time graphics ...
Ragan-Kelley, Jonathan
and access to hourly energy usage data .. 26access to their hourly energy usage data on a real-time orfor Access to hourly energy usage data on a real- price
Software development with real-time collaborative editing
This thesis presents Collabode, a web-based integrated development environment for Java. With real-time collaborative editing, multiple programmers can use Collabode to edit the same source code at the same time. Collabode ...
Goldman, Max, Ph. D. Massachusetts Institute of Technology
Exploiting temporal coherence in real-time rendering
Temporal coherence (TC), the correlation of contents between adjacent rendered frames, exists across a wide range of scenes and motion types in practical real-time rendering. By taking advantage of TC, we can save redundant computation and improve ...
Daniel Scherzer; Lei Yang; Oliver Mattausch
Event Order Abstraction for Parametric Real-Time System Verification
We present a new abstraction technique, event order abstraction (EOA), for parametric safety verification of real-time systems in which ``correct orderings of events'' needed for system correctness are maintained by timing ...
Umeno, Shinya
Real-time Java has become already real
Enhanced complexity of the designed real-time computer systems requires that the developers seek for efficient methods and tools to solve the posed problems. The most obvious and simple approach is to employ technologies that have demonstrated their ...
S. N. Zyl'
New Real-Time Quantum Efficiency Measurement System: Preprint
DOE Green Energy (OSTI)
This paper describes a newly developed technique for measuring the quantum eficiiency in solar cells in real-time using a unique, electronically controlled, full-spectrum light source.
Young, D. L.; Egaas, B.; Pinegar, S.; Stradins, P.
Management of real-time streaming data grid services
We discuss the architectural and management support for real time data stream applications, both in terms of lower level messaging and higher level service, filter and session structures. In our approach, messaging systems act as a Grid substrate that ...
Geoffrey Fox; Galip Aydin; Harshawardhan Gadgil; Shrideep Pallickara; Marlon Pierce; Wenjun Wu
Available Technologies: Real-Time Monitoring of Plant ...
... which act as common building blocks of plant ... the gases emitted by the living plant tissue are analyzed in real-time for emissions of 13C in both organic ...
MJO Initiation in the Real-Time Multivariate MJO Index
Madden�Julian oscillation (MJO) initiation in the real-time multivariate MJO (RMM) index is explored through an analysis of observed case studies and composite events. Specific examples illustrate that both the dates of MJO initiation and the ...
Katherine H. Straub
NETL: Gasification Systems - Real Time Flame Monitoring of Gasifier...
Real Time Flame Monitoring of Gasifier Burner and Injectors Project No.: DE-FC26-02NT41585 Gas Technology Institute is developing a reliable, practical, and cost effective means to...
The 8 requirements of real-time stream processing
Applications that require real-time processing of high-volume data steams are pushing the limits of traditional data processing infrastructures. These stream-based applications include market feed processing and electronic trading on Wall Street, network ...
Michael Stonebraker; U?ur �etintemel; Stan Zdonik
Beyond kWh and kW demand: Understanding the new real-time electric power
Beyond kWh and kW demand: Understanding the new real-time electric power Beyond kWh and kW demand: Understanding the new real-time electric power measurement system in LBNL Building 90 Speaker(s): Alex McEachern Date: January 14, 2010 - 12:00pm Location: 90-3122 In the Summer of 2009, LBNL researchers installed end-use sub-metering equipment and associated Energy Information System (EIS) tools to characterize energy use and comfort in Building 90. Seven of 40 key electric loads were measured using advanced meters that make sophisticated real-time measurements of dozens of power flow parameters, power disturbances, and harmonics. The talk will review some electrical engineering fundamentals, how use and interpret data measured in building 90 in real-time. The real-time data available includes power, volt-amps, VAR's, unbalance voltage and current, voltage and current distortion,
Cybersecurity through Real-Time Distributed Control Systems
Critical infrastructure sites and facilities are becoming increasingly dependent on interconnected physical and cyber-based real-time distributed control systems (RTDCSs). A mounting cybersecurity threat results from the nature of these ubiquitous and sometimes unrestrained communications interconnections. Much work is under way in numerous organizations to characterize the cyber threat, determine means to minimize risk, and develop mitigation strategies to address potential consequences. While it seems natural that a simple application of cyber-protection methods derived from corporate business information technology (IT) domain would lead to an acceptable solution, the reality is that the characteristics of RTDCSs make many of those methods inadequate and unsatisfactory or even harmful. A solution lies in developing a defense-in-depth approach that ranges from protection at communications interconnect levels ultimately to the control system s functional characteristics that are designed to maintain control in the face of malicious intrusion. This paper summarizes the nature of RTDCSs from a cybersecurity perspec tive and discusses issues, vulnerabilities, candidate mitigation approaches, and metrics.
Kisner, Roger A [ORNL; Manges, Wayne W [ORNL; MacIntyre, Lawrence Paul [ORNL; Nutaro, James J [ORNL; Munro Jr, John K [ORNL; Ewing, Paul D [ORNL; Howlader, Mostofa [ORNL; Kuruganti, Phani Teja [ORNL; Wallace, Richard M [ORNL; Olama, Mohammed M [ORNL
Achieving Superior Plant Energy Performance Utilizing Real-time Data
After years of attempting to streamline operations in an effort to reduce operational costs, many industrial manufacturers are turning to strategic energy management as a potential money-saving strategy. In their efforts, managers face a number of significant barriers such as low awareness and expertise, elevated financial hurdle rate, lack of capital allocation and procurement constraints. In addition, energy efficiency efforts may be hampered by traditional single point energy reduction methods such as reviewing utility bills, getting equipment upgrade suggestions from vendors or one-time energy audits. Research demonstrates that these techniques have neither the visibility nor continuity to achieve energy reductions that are consistent and persistent. With the right Best Practices, however, using new methodologies and technologies unavailable only a few years ago, enterprises can achieve dramatic energy reductions and their resulting cost savings. These Best Practices are founded on 1) application of a systematic methodology for understanding where energy is used and how to reduce it; and 2) achieving visibility into sufficiently granular real-time information on key performance indicators; 3) integrating new technology into overall corporate strategy and processes to change behavior.
Subramanya, S.
VizWiz: nearly real-time answers to visual questions
The lack of access to visual information like text labels, icons, and colors can cause frustration and decrease independence for blind people. Current access technology uses automatic approaches to address some problems in this space, but the technology ... Keywords: blind users, non-visual interfaces, real-time human computation
Jeffrey P. Bigham; Chandrika Jayant; Hanjie Ji; Greg Little; Andrew Miller; Robert C. Miller; Robin Miller; Aubrey Tatarowicz; Brandyn White; Samual White; Tom Yeh
QoS and energy aware routing for real-time traffic in wireless sensor networks
Wireless sensor networks are being built to facilitate automated information gathering in military, industrial, environmental and surveillance applications. Many such applications of Sensor Networks require improved QoS (packet delivery within a defined ... Keywords: QoS routing, Real-Time communication, Sensor networks
Abinash Mahapatra; Kumar Anand; Dharma P. Agrawal
Real-time location and inpatient care systems based on passive RFID
RFID technology meets identification and tracking requirements in healthcare environments with potential to speed up and increase reliability of involved processes. Due to this, high expectations for this integration have emerged, but hospital and medical ... Keywords: EPC Gen1&2 performance, Hospital information system, Inpatient management, Medical asset management, Real-time location system
Pablo Najera; Javier Lopez; Rodrigo Roman
Predicting energy and performance overhead of real-time operating systems
We present a high-level method for rapidly and accurately estimating energy and performance overhead of Real-Time Operating Systems. Unlike most other approaches, which rely on Transaction-Level Modeling (TLM), we infer the information we need directly ...
Sandro Penolazzi; Ingo Sander; Ahmed Hemani
The Real-Time Mesoscale Analysis at NOAA�s National Centers for Environmental Prediction: Current Status and Development
In 2006, the National Centers for Environmental Prediction (NCEP) implemented the Real-Time Mesoscale Analysis (RTMA) in collaboration with the Earth System Research Laboratory and the National Environmental, Satellite, and Data Information ...
Manuel S. F. V. De Pondeca; Geoffrey S. Manikin; Geoff DiMego; Stanley G. Benjamin; David F. Parrish; R. James Purser; Wan-Shu Wu; John D. Horel; David T. Myrick; Ying Lin; Robert M. Aune; Dennis Keyser; Brad Colman; Greg Mann; Jamie Vavra
Analysis of real-time reservoir monitoring : reservoirs, strategies, & modeling.
The project objective was to detail better ways to assess and exploit intelligent oil and gas field information through improved modeling, sensor technology, and process control to increase ultimate recovery of domestic hydrocarbons. To meet this objective we investigated the use of permanent downhole sensors systems (Smart Wells) whose data is fed real-time into computational reservoir models that are integrated with optimized production control systems. The project utilized a three-pronged approach (1) a value of information analysis to address the economic advantages, (2) reservoir simulation modeling and control optimization to prove the capability, and (3) evaluation of new generation sensor packaging to survive the borehole environment for long periods of time. The Value of Information (VOI) decision tree method was developed and used to assess the economic advantage of using the proposed technology; the VOI demonstrated the increased subsurface resolution through additional sensor data. Our findings show that the VOI studies are a practical means of ascertaining the value associated with a technology, in this case application of sensors to production. The procedure acknowledges the uncertainty in predictions but nevertheless assigns monetary value to the predictions. The best aspect of the procedure is that it builds consensus within interdisciplinary teams The reservoir simulation and modeling aspect of the project was developed to show the capability of exploiting sensor information both for reservoir characterization and to optimize control of the production system. Our findings indicate history matching is improved as more information is added to the objective function, clearly indicating that sensor information can help in reducing the uncertainty associated with reservoir characterization. Additional findings and approaches used are described in detail within the report. The next generation sensors aspect of the project evaluated sensors and packaging survivability issues. Our findings indicate that packaging represents the most significant technical challenge associated with application of sensors in the downhole environment for long periods (5+ years) of time. These issues are described in detail within the report. The impact of successful reservoir monitoring programs and coincident improved reservoir management is measured by the production of additional oil and gas volumes from existing reservoirs, revitalization of nearly depleted reservoirs, possible re-establishment of already abandoned reservoirs, and improved economics for all cases. Smart Well monitoring provides the means to understand how a reservoir process is developing and to provide active reservoir management. At the same time it also provides data for developing high-fidelity simulation models. This work has been a joint effort with Sandia National Laboratories and UT-Austin's Bureau of Economic Geology, Department of Petroleum and Geosystems Engineering, and the Institute of Computational and Engineering Mathematics.
Mani, Seethambal S.; van Bloemen Waanders, Bart Gustaaf; Cooper, Scott Patrick; Jakaboski, Blake Elaine; Normann, Randy Allen; Jennings, Jim (University of Texas at Austin, Austin, TX); Gilbert, Bob (University of Texas at Austin, Austin, TX); Lake, Larry W. (University of Texas at Austin, Austin, TX); Weiss, Chester Joseph; Lorenz, John Clay; Elbring, Gregory Jay; Wheeler, Mary Fanett (University of Texas at Austin, Austin, TX); Thomas, Sunil G. (University of Texas at Austin, Austin, TX); Rightley, Michael J.; Rodriguez, Adolfo (University of Texas at Austin, Austin, TX); Klie, Hector (University of Texas at Austin, Austin, TX); Banchs, Rafael (University of Texas at Austin, Austin, TX); Nunez, Emilio J. (University of Texas at Austin, Austin, TX); Jablonowski, Chris (University of Texas at Austin, Austin, TX)
File:06TXBConstructionStormWaterPermit.pdf | Open Energy Information
TXBConstructionStormWaterPermit.pdf TXBConstructionStormWaterPermit.pdf Jump to: navigation, search File File history File usage Metadata File:06TXBConstructionStormWaterPermit.pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution (1,275 × 1,650 pixels, file size: 30 KB, MIME type: application/pdf) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 15:05, 10 June 2013 Thumbnail for version as of 15:05, 10 June 2013 1,275 × 1,650 (30 KB) Abergfel (Talk | contribs) 16:14, 10 April 2013 Thumbnail for version as of 16:14, 10 April 2013 1,275 × 1,650 (30 KB) Alevine (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup
Tracking Living Cells as They Differentiate in Real Time Print Tracking Living Cells as They Differentiate in Real Time Print Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.
Low Dose Radiation Research Program: Research Highlights - Real-time
Real-time imaging of repair processes possible with Nickel-63 Real-time imaging of repair processes possible with Nickel-63 microirradiator Microscope Microscope stage-mounted microirradiation system. (A) Overall system shown mounted on a micromanipulator housed within a heated, humidified, environmental chamber of a microscope. (B) Close-up showing attachment of device to the micromanipulator. (C) Detail showing the bend in the enclosing capillary, which allows positioning of the active surface directly above the target cell. (D) Microirradiator tip in dissecting microscope. (E) Close-up view through microscope optics (scale bar, 10 microns.) Background: Scientists know that mammalian cells begin a nucleoplasmic repair process within seconds after being exposed to ionizing radiation. Real-time imaging of this process could further understanding of the
Java Automation Controller and Real-Time Systems
Java Automation Controller and Real-Time Systems Java Automation Controller and Real-Time Systems Speaker(s): Greg Bollella Date: June 29, 2009 - 12:00pm Location: 90-3122 Java has always been a disruptive technology and now it is breaking the mold in industrial, process, building, and transportation automation systems. For many years, programmable logic controllers (PLCs), the digital versions of old relay-based control systems (such as that used in the NYC Subway system in the late 1800s) have primarily controlled these systems. PLCs are the workhorses of the controls industry but the market is characterized by proprietary, closed, expensive, special-purpose solutions. A Java-based automation controller breaks the mold by allowing control algorithms, which require strict real-time capabilities, to run on
A Simplification of a Real-Time Verification Problem
We revisit the problem of real-time verification with dense dynamics using timeout and calendar based models and simplify this to a finite state verification problem. To overcome the complexity of verification of real-time systems with dense dynamics, Dutertre and Sorea, proposed timeout and calender based transition systems to model the behavior of real-time systems and verified safety properties using k-induction in association with bounded model checking. In this work, we introduce a specification formalism for these models in terms of Timeout Transition Diagrams and capture their behavior in terms of semantics of Timed Transition Systems. Further, we discuss a technique, which reduces the problem of verification of qualitative temporal properties on infinite state space of (a large fragment of) these timeout and calender based transition systems into that on clockless finite state models through a two-step process comprising of digitization and canonical finitary reduction. This technique enables us to ve...
Saha, Indranil; Roy, Suman; 10.1007/978-3-540-75596-8_21
Flash Memory Garbage Collection in Hard Real-Time Systems
Due to advances in capacity, speed, and economics, NAND-based flash memory technology is increasingly integrated into all types of computing systems, ranging from enterprise servers to embedded devices. However, due to its unpredictable up-date behavior and time consuming garbage collection mechanism, NAND-based flash memory is difficult to integrate into hard-real-time embedded systems. In this thesis, I propose a performance model for flash memory garbage collection that can be used in conjunction with a number of different garbage collection strategies. I describe how to model the cost of reactive (lazy) garbage collection and compare it to that of more proactive schemes. I develop formulas to assess the schedulability of hard real- time periodic task sets under simplified memory consumption models. Results show that I prove the proactive schemes achieve the larger maximum schedulable utilization than the traditional garbage collection mechanism for hard real-time systems in flash memory.
Lai, Chien-An
Precomputed local radiance transfer for real-time lighting design
This paper introduces a new method for real-time relighting of scenes illuminated by local light sources. We extend previous work on precomputed radiance transfer for distant lighting to local lighting by introducing the concept of unstructured light clouds. The unstructured light cloud enables a compact representation of local lights in the model and real-time rendering of complex models with full global illumination due to local light sources. We use simplification of lights, and clustered PCA to obtain a compressed representation. When storing only the indirect component of the illumination, we are able to get high quality with only 8� 16 lighting coefficients per vertex. Our results demonstrate real-time rendering of scenes with moving lights, dynamic cameras, glossy materials and global illumination.
Anders Wang Kristensen
Tracking Living Cells as They Tracking Living Cells as They Differentiate in Real Time Tracking Living Cells as They Differentiate in Real Time Print Thursday, 27 September 2012 00:00 Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.
Usage of Near Real-Time Climate Information
Through a computer-based system, weather data from Illinois are collected daily, checked, and summarized into various climatic products within hours after collection. This system was controlled for two years to demonstrate system feasibility, ...
Stanley A. Changnon Jr.; Wayne M. Wendland; John L. Vogel
Definition: Real-time Pricing | Open Energy Information
to usage on an hourly basis.1 Related Terms smart grid References https:www.smartgrid.govcategorytechnologyrealtimepricing C LikeLike UnlikeLike You like this.Sign...
Toward Real Time Data Analysis for Smart Grids
This paper describes the architecture and design of a novel system for supporting large-scale real-time data analysis for future power grid systems. The widespread deployment of renewable generation, smart grid controls, energy storage, plug-in hybrids, and new conducting materials will require fundamental changes in the operational concepts and principal components of the grid. As a result, the whole system becomes highly dynamic and requires constant adjusting based on real time data. Even though millions of sensors such as phase measurement units (PMU) and smart meters are being widely deployed, a data layer that can analyze this amount of data in real time is needed. Unlike the data fabric in other cloud services, the data layer for smart grids has some unique design requirements. First, this layer must provide real time guarantees. Second, this layer must be scalable to allow a large number of applications to access the data from millions of sensors in real time. Third, reliability is critical and this layer must be able to continue to provide service in face of failures. Fourth, this layer must be secure. We address these challenges though a scalable system architecture that integrates the I/O and data processing capability in a devise set of devices. Data process operations can be placed anywhere from sensors, data storage devices, to control centers. We further employ compression to improve performance. We design a lightweight compression customized for power grid data. Our system can reduce end-to-end response time by reduce I/O overhead through compression and overlap compression operations with I/O. The initial prototype of our system was demonstrated with several use cases from PNNL�s FPGI and show that our system can provide real time guarantees to a diverse set of applications.
Yin, Jian; Gorton, Ian; Sharma, Poorva
Real Time Flame Monitoring of Gasifier Burner and Injectors
Real Time Flame Monitoring of Gasifier Real Time Flame Monitoring of Gasifier Burner and Injectors Background The Gasification Technologies Program at the National Energy Technology Laboratory (NETL) supports research and development (R&D) in the area of gasification-a process whereby carbon-based materials (feedstocks) such as coal are converted into synthesis gas (syngas), which is separated into hydrogen (H 2 ) and carbon dioxide (CO 2 ) gas streams in a combustion turbine-generator as a way to generate clean electricity while
Handheld portable real-time tracking and communications device
Portable handheld real-time tracking and communications devices include; a controller module, communications module including global positioning and mesh network radio module, data transfer and storage module, and a user interface module enclosed in a water-resistant enclosure. Real-time tracking and communications devices can be used by protective force, security and first responder personnel to provide situational awareness allowing for enhance coordination and effectiveness in rapid response situations. Such devices communicate to other authorized devices via mobile ad-hoc wireless networks, and do not require fixed infrastructure for their operation.
Wiseman, James M. (Albuquerque, NM); Riblett, Jr., Loren E. (Edgewood, NM); Green, Karl L. (Albuquerque, NM); Hunter, John A. (Albuquerque, NM); Cook, III, Robert N. (Rio Rancho, NM); Stevens, James R. (Arlington, VA)
Data Analysis for Real Time Identification of Grid Disruptions
The U.S. electric power system comprises multiple distinct interconnections of generators, high voltage transmission systems, and local distribution systems that maintain a continuous balance between generation and load with impressive levels of efficiency and reliability. This critical infrastructure has served the nation remarkably well, but is likely to see more changes over the next decade than it has seen over the past century. In particular, the widespread deployment of renewable generation, smart-grid controls, energy storage, and new conducting materials will require fundamental changes in grid planning and the way we run the power grid. Two challenges in the realization of the smart grid technology are the ability to visualize the deluge of expected data streams for global situational awareness; as well as the ability to detect disruptive and classify such events from spatially-distributed high-speed power system frequency measurements. One element of smart grid technology is the installation of a wide-area frequency measurement system on the electric poles in the streets for conditions monitoring of the distribution lines. This would provide frequency measurements about the status of the electric grid and possible information about impending problems before they start compounding and cascading. The ability to monitor the distribution lines is just one facet of proposed smart grid technology. Other elements include the installation of advanced devices such as smart meters, the automation of transmission lines, the integration of renewable energy technologies such as solar and wind, and the advancement of plug-in hybrid electric vehicle technology. This chapter describes recent advancements in the area of intelligent data analysis for real time detection of disruptive events from power system frequency data collected using an existing internet-based frequency monitoring network (FNET), which is a precursor for future smart-grid systems.
Chandola, Varun [ORNL; Omitaomu, Olufemi A [ORNL; Fernandez, Steven J [ORNL
NedPower Mount Storm II Wind Farm | Open Energy Information
NedPower Mount Storm II Wind Farm NedPower Mount Storm II Wind Farm Jump to: navigation, search Name NedPower Mount Storm II Wind Farm Facility NedPower Mount Storm II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Shell Wind Energy/Dominion Energy Developer NedPower/Shell Wind Energy/Dominion Energy Energy Purchaser Dominion Energy Location Grant County WV Coordinates 39.251507°, -79.178989° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.251507,"lon":-79.178989,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}
Evaluation of Concurrency Control Strategies for Mixed Soft Real-Time Database Systems
1 Evaluation of Concurrency Control Strategies for Mixed Soft Real-Time Database Systems Kam of the miss rate of soft real-time transactions. Although many new database applications have significant soft real-time database systems (MSRTDBS), in which both non-real-time and soft real-time transactions
Cheng, Reynold Cheng Chun
Constraint Orientated Specification with CSP and Real Time Temporal Logic
Constraint Orientated Specification with CSP and Real Time Temporal Logic Justin Pearson Department Processes (CSP) [Hoa85] and a version of Propositional Temporal Logic (PTL), derived from [Eme90]. CSP. The behaviour of a CSP process is dependent on its environment; it is therefore difficult to assert global
Kent, University of
Concurrent and Real Time Systems: the CSP approach Steve Schneider
Concurrent and Real Time Systems: the CSP approach by Steve Schneider First published 1999 Systems the CSP approach Steve Schneider A Wiley-Interscience Publication JOHN WILEY & SONS, INC. New York Whitehead This book provides an introduction to Communicating Sequential Processes (CSP) and its use
Doran, Simon J.
Active learning for real-time motion controllers
This paper describes an approach to building real-time highly-controllable characters. A kinematic character controller is built on-the-fly during a capture session, and updated after each new motion clip is acquired. Active learning is used to identify ... Keywords: active learning, human motion, motion capture
Seth Cooper; Aaron Hertzmann; Zoran Popovi?
ADWICE � anomaly detection with real-time incremental clustering
Anomaly detection, detection of deviations from what is considered normal, is an important complement to misuse detection based on attack signatures. Anomaly detection in real-time places hard requirements on the algorithms used, making many proposed ... Keywords: adaptability, anomaly detection, clustering, intrusion detection, realtime
Kalle Burbeck; Simin Nadjm-Tehrani
Real-time concepts for block-based watermarking schemes
In this paper we propose a concept to transfer a non real-time watermarking system into a watermarking system, which meets the requirements of a media-on-demand system. Several applications scenarios requiring the embedding of watermarks with maximum ...
Michael Arnold; Oliver Lobisch
Configurable model for real-time crane erection visualization
Detailed simulation and visualization of crane activities have been recently introduced to help engineers identify potential problems with critical erection tasks; however, the development of real-time erection visualizations for different types of cranes ... Keywords: Cooperative, Crane, Erection, Multibody, Physics Engine, Simulation, Visualization
Wei-Han Hung, Shih-Chung Kang
Real-time locomotion control by sensing gloves: Research Articles
Sensing gloves are often used as an input device for virtual 3D games. We propose a new method to control characters such as humans or animals in real-time by using sensing gloves. Based on existing motion data of the body, a new method to map the hand ... Keywords: 3D game, 3D user interface, Computer puppetry, Sensing glove
Taku Komura; Wai-Chun Lam
Scalable real time data management for smart grid
This paper presents GridMW, a scalable and reliable data middleware layer for smart grids. Smart grids promise to improve the efficiency of power grid systems and reduce green house emissions through incorporating power generation from renewable sources ... Keywords: data management middleware, efficiency, near real time, performance, smart grids
Jian Yin; Anand Kulkarni; Sumit Purohit; Ian Gorton; Bora Akyol
Real-time personalized sports video filtering and summarization
We demonstrate a real-time fully automated software system for filtering important events in sports video. Events represent occurrences of actions or state changes in video content. In the current prototype, we demonstrate detection of pitching in baseball ... Keywords: MPEG-7, event detection, indexing, summarization, video filtering
Di Zhong; Raj Kumar; Shih-Fu Chang
Real-time pricing program in a smart grid environment
Improving system efficiency and reliability is motivating countries to design and execute different types of time of use demand response programs. However, certain deficiencies prevent these programs from reaching their goals. Smart meters as a mechanism ... Keywords: real-time pricing, smart grid, time of use programs
Hassan Monsef, Bin Wu
Real-Time Forecasting of Snowfall Using a Neural Network
A set of 53 snowfall reports was collected in real time from the 2004/05 and 2005/06 cold seasons (November�March). Three snowfall-amount forecast methods were tested: neural network, surface-temperature-based 676-USDT table, and climatological ...
Paul J. Roebber; Melissa R. Butt; Sarah J. Reinke; Thomas J. Grafenauer
Dynamic control in real-time heuristic search
Real-time heuristic search is a challenging type of agent-centered search because the agent's planning time per action is bounded by a constant independent of problem size. A common problem that imposes such restrictions is pathfinding in modern computer ...
Vadim Bulitko; Mitja Lu�trek; Jonathan Schaeffer; Yngvi Bj�rnsson; Sverrir Sigmundarson
and HVAC operations. A real-time optimization program suchHVAC IES ISO-NE LBNL MILP NOx NP NRC NREL OLS P&DC PJM PUCT PURPA PV RETScreen RReDC Hybrid OptimizationHVAC equipment and other building energy equipment. This research is similar to the IES dispatch optimization
Real-time SPECT and 2D ultrasound image registration
In this paper we present a technique for fully automatic, real-time 3D SPECT (Single Photon Emitting Computed Tomography) and 2D ultrasound image registration. We use this technique in the context of kidney lesion diagnosis. Our registration algorithm ...
Marek Bucki; Fabrice Chassat; Francisco Galdames; Takeshi Asahi; Daniel Pizarro; Gabriel Lobo
Statistical Characteristics of a Real-Time Precipitation Forecasting Model
At Colorado State University the Regional Atmospheric Modeling System (RAMS) has been used to produce real-time forecasts of precipitation for the Colorado mountain region since 1991. Originally a so-called dump-bucket scheme was used to generate ...
Brian Gaudet; William R. Cotton
TOWARDS REAL-TIME GENERATION SCHEDULING IN MICROGRIDS WITH PERFORMANCE GUARANTEE LIAN LU, JINLONG TU, CHI-KIN CHAU, MINGHUA CHEN, ZHAO XU AND XIAOJUN LIN INTRODUCTION Microgrid is an emerging- generation improves generation efficiency by 2-3x. A key problem in microgrid operations is how to schedule
Zhang, Junshan
CGLive - A Real Time Power Monitoring Solution for Enterprises
CGLive is a real time energy monitoring software tool that could be used to monitor and reduce energy consumption of PC's in a enterprise network environment. Working of CGLive has been tested in a lab environment and was found to be successful. Dashboard ... Keywords: Green IT, Intelligent Green IT Management, Energy audit, M2M technology, Sensor Networks, Performance Optimization, Remote monitoring
Subrahmanya VRK Rao; S. Ramesh; V. Arun Muthuraj; Karthik Sundararaman; Jinka Parthasarathi
Evaluating transport coefficients in real time thermal field theory
Transport coefficients in a hadronic gas have been calculated earlier in the imaginary time formulation of thermal field theory. The steps involved are to relate the defining retarded correlation function to the corresponding time-ordered one and to evaluate the latter in the conventional perturbation expansion. Here we carry out both the steps in the real time formulation.
S. Mallik; Sourav Sarkar
A real-time virtual machine implementation for small microcontrollers
A way to host a full general purpose virtual machine (VM) interpreter on a very small microcontroller platform is described. This machine provides a comprehensive set of general and enhanced functionality efficiently by abstracting the VM instruction ... Keywords: Microcontrollers, Real-time systems, Virtual machine
W. Roger Davis; Phillip A. Laplante; Bo I. Sand�n
Technical Note Real-time functional brain mapping using electrocorticography
et al., 1994; Keles et al., 2004). In contrast, methods that read endogenous signals, such as somato) 504507 #12;the 80200 Hz band (Grenier et al., 2001). This real-time mapping technique should. J. Neurophysiol. 94, 42694280. Grenier, F., Timofeev, I., Steriade, M., 2001. Focal synchronization
Rao, Rajesh
Real-time tessellation of terrain on graphics hardware
Synthetic terrain is a key element in many applications, which can lessen the sense of realism if it is not handled correctly. We propose a new technique for visualizing terrain surfaces by tessellating them on the GPU. The presented algorithm introduces ... Keywords: GPU, Level of detail, Real-time rendering, Terrain simulation, Tessellation
Oscar Ripolles; Francisco Ramos; Anna Puig-Centelles; Miguel Chover
Slicing concurrent real-time system specifications for verification
The high-level specification language CSP-OZ-DC has been shown to be well-suited for modelling and analysing industrially relevant concurrent real-time systems. It allows us to model each of the most important functional aspects such as control flow, ...
Ingo Br�ckner
Current status of DIII-D real-time digital plasma control
This paper describes the current status of real-time digital plasma control for the DIII-D tokamak. The digital plasma control system (PCS) has been in place at DIII-D since the early 1990s and continues to expand and improve in its capabilities to monitor and control plasma parameters for DIII-D fusion science experiments. The PCs monitors over 200 tokamak parameters from the DIII-D experiment using a real-time data acquisition system that acquires a new set of samples once every 60 {micro}s. This information is then used in a number of feedback control algorithms to compute and control a variety of parameters including those affecting plasma shape and position. A number of system related improvements has improved the usability and flexibility of the DIII-D PCS. These include more graphical user interfaces to assist in entering and viewing the large and ever growing number of parameters controlled by the PCS, increased interaction and accessibility from other DIII-D applications, and upgrades to the computer hardware and vended software. Future plans for the system include possible upgrades of the real-time computers, further links to other DIII-D diagnostic measurements such as real-time Thomson scattering analysis, and joint collaborations with other tokamak experiments including the NSTX at Princeton.
Penaflor, B.G.; Piglowski, D.A.; Ferron, J.R.; Walker, M.L.
Ongoing Phase 2 work comprises the development and field-testing of a real-time reservoir stimulation diagnostic system. Phase 3 work commenced in June 2001, and involved conducting research, development and field-testing of real-time enhanced dual-fluid stimulation processes. Experimental field-testing to date includes three well tests. Application of these real-time stimulation processes and diagnostic technologies has been technically successful with commercial production from the ''marginal'' reservoirs in the first two well tests. The third well test proved downhole-mixing is an efficient process for acid stimulation of a carbonate reservoir that produced oil and gas with 2200 psi bottomhole reservoir pressure, however, subsequent shut-in pressure testing indicated the reservoir was characterized by low-permeability. Realtimezone continues to seek patent protection in foreign markets to the benefit of both RTZ and NETL. Realtimezone and the NETL have licensed the United States patented to Halliburton Energy Services (HES). Ongoing Phase 2 and Phase 3 field-testing continues to confirm applications of both real-time technologies, from well testing conducted over the last 12-month work period and including well test scheduled for year-end of 2002. Technical data transfer to industry is ongoing via Internet tech-transfer, public presentations and industry publications. Final Phase 3 test work will be focused on further field-testing the innovational process of blending stimulation fluids downhole. This system provides a number of advantages in comparison to older industry fracturing techniques and allows the operator to control reservoir fracture propagation and concentrations of proppant placed in the reservoir, in real-time. Another observed advantage is that lower friction pressures result, which results in lower pump treating pressures and safer reservoir hydraulic fracturing jobs.
George Scott III
Is Real-Time Pricing Green?: The Environmental Impacts of Electricity Demand Variance
for responding to real-time prices. 3 Recently someof RTP. the higher real-time price, each would use lessretail price, p . For real-time prices below the ?at price,
Holland, Stephen P.; Mansur, Erin T.
Residential Customer Response to Real-time Pricing: The Anaheim Critical Peak Pricing Experiment
to reduce the day-ahead or real-time price in the Californiaon day- ahead and real-time prices, particularly duringday-ahead and real-time wholesale prices. Declaring a CPP
Wolak, Frank A.
Wealth Transfers Among Large Customers from Implementing Real-Time Retail Electricity Pricing
who are charged real-time prices. I discuss the politicalor loss relative to the real-time price that obtains in eachits expected demand at the real-time price. Throughout this
Customer Risk from Real-Time Retail Electricity Pricing: Bill Volatility and Hedgability
then pay/receive the real- time price for deviations fromI assume that the retail real-time prices customers face arewould likely dampen real-time price volatility and the
RTZen: Highly Predictable, Real-time Java Middleware for Distributed and Embedded Systems
Real-Time Speci?cation for Java. Addison-Wesley (2000) 8.Vitek, J. : Real-time java scoped memory: Design patternsof the jRate Real-Time Java Implementation. In Meersman,
Raman, Krishna; Zhang, Yue; Panahi, Mark; Colmenares, Juan A; Klefstad, Raymond; Harmon, Trevor
Detection and quantitation of HPV in genital and oral tissues and fluids by real time PCR
oral tissues and fluids by real time PCR. Virology Journalsamples by a real-time PCR- based system. J Virol MethodsMolecular beacon-based real-time PCR method for detection of
File:06ORBConstructionStormWaterPermit.pdf | Open Energy Information
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search File Edit History Facebook icon Twitter icon » File:06ORBConstructionStormWaterPermit.pdf Jump to: navigation, search File File history File usage File:06ORBConstructionStormWaterPermit.pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution (1,275 × 1,650 pixels, file size: 38 KB, MIME type: application/pdf) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 12:08, 28 September 2012 Thumbnail for version as of 12:08, 28 September 2012 1,275 × 1,650 (38 KB) Dklein2012 (Talk | contribs) You cannot overwrite this file.
Real-time garbage collection for flash-memory storage systems of real-time embedded systems
Flash-memory technology is becoming critical in building embedded systems applications because of its shock-resistant, power economic, and nonvolatile nature. With the recent technology breakthroughs in both capacity and reliability, flash-memory storage ... Keywords: Embedded systems, flash memory, garbage collection, real-time system, storage systems
Li-Pin Chang; Tei-Wei Kuo; Shi-Wu Lo
File:06MTBConstructionStormWaterPermit (7).pdf | Open Energy Information
MTBConstructionStormWaterPermit (7).pdf MTBConstructionStormWaterPermit (7).pdf Jump to: navigation, search File File history File usage Metadata File:06MTBConstructionStormWaterPermit (7).pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution (1,275 × 1,650 pixels, file size: 38 KB, MIME type: application/pdf) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 14:56, 2 April 2013 Thumbnail for version as of 14:56, 2 April 2013 1,275 × 1,650 (38 KB) Dfitzger (Talk | contribs) 12:10, 1 October 2012 Thumbnail for version as of 12:10, 1 October 2012 1,275 × 1,650 (26 KB) Dklein2012 (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup
File:06CABConstructionStormWaterProgram.pdf | Open Energy Information
CABConstructionStormWaterProgram.pdf CABConstructionStormWaterProgram.pdf Jump to: navigation, search File File history File usage File:06CABConstructionStormWaterProgram.pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution (1,275 × 1,650 pixels, file size: 48 KB, MIME type: application/pdf) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 14:49, 21 January 2013 Thumbnail for version as of 14:49, 21 January 2013 1,275 × 1,650 (48 KB) Alevine (Talk | contribs) 15:52, 26 June 2012 Thumbnail for version as of 15:52, 26 June 2012 1,275 × 1,650 (65 KB) Jnorris (Talk | contribs) June 26th version 11:11, 19 June 2012 Thumbnail for version as of 11:11, 19 June 2012 1,275 × 1,650 (44 KB) Dfitzger (Talk | contribs)
Storing Industry's Carbon Dioxide in Real Time | U.S. DOE Office of Science
Office of Science (SC) Website
Storing Industry's Storing Industry's Carbon Dioxide in Real Time Laboratory Policy and Evaluation (LPE) LPE Home Staff M&O Contracts SC Laboratory Appraisal Process Laboratory Planning Process Work for Others in the Office of Science Laboratory Directed Research and Development (LDRD) DOE's Philosophy on LDRD Frequently Asked Questions Success Stories Brochures Additional Information LDRD Program Contacts Technology Transfer DOE National Laboratories Contact Information Laboratory Policy and Evaluation U.S. Department of Energy SC-32/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5447 F: (202) 586-3119 Success Stories Storing Industry's Carbon Dioxide in Real Time Print Text Size: A A A RSS Feeds FeedbackShare Page PNNL researchers are developing new instruments that provide a first live
This report describes the development and application of a dispatch optimization algorithm for integrated energy systems (IES) comprised of on-site cogeneration of heat and electricity, energy storage devices, and demand response opportunities. This work is intended to aid commercial and industrial sites in making use of modern computing power and optimization algorithms to make informed, near-optimal decisions under significant uncertainty and complex objective functions. The optimization algorithm uses a finite set of randomly generated future scenarios to approximate the true, stochastic future; constraints are included that prevent solutions to this approximate problem from deviating from solutions to the actual problem. The algorithm is then expressed as a mixed integer linear program, to which a powerful commercial solver is applied. A case study of United States Postal Service Processing and Distribution Centers (P&DC) in four cities and under three different electricity tariff structures is conducted to (1) determine the added value of optimal control to a cogeneration system over current, heuristic control strategies; (2) determine the value of limited electric load curtailment opportunities, with and without cogeneration; and (3) determine the trade-off between least-cost and least-carbon operations of a cogeneration system. Key results for the P&DC sites studied include (1) in locations where the average electricity and natural gas prices suggest a marginally profitable cogeneration system, optimal control can add up to 67% to the value of the cogeneration system; optimal control adds less value in locations where cogeneration is more clearly profitable; (2) optimal control under real-time pricing is (a) more complicated than under typical time-of-use tariffs and (b) at times necessary to make cogeneration economic at all; (3) limited electric load curtailment opportunities can be more valuable as a compliment to the cogeneration system than alone; and (4) most of the trade-off between least-cost and least-carbon IES is determined during the system design stage; for the IES system considered, there is little difference between least-cost control and least-carbon control.
Evaluation of Methodologies for Real-Time Incremental Heat Rate Determination
Reduced staffing, tighter budgets, ISOs, and increased competition have created the need for maintaining up-to-date incremental heat rate information. Combining recent advances in analytics with modern performance monitoring packages and data historians may provide the capability for closer-to-real-time incremental heat rate determination. Many power generating companies either rely on historic data or slow and labor intensive testing to establish incremental heat rate curves. Those curves are ...
Shoreline monitoring program on the Upper Texas Coast utilizing a Real-Time Kinematic Differential Global Positioning System
Due to shoreline erosion, approximately seventeen miles of Texas State Highway 87, located in Jefferson County Texas, have been repeatedly destroyed by storms and rebuilt. This thesis describes a shoreline monitoring program developed to obtain a comprehensive data set that will be used to define the coastal erosion problem and assist in the reconstruction of the roadway. An improved survey system similar to a concept developed by Beach et al. (1996) was designed and constructed for this project. This thesis discusses the improved survey system design and testing. The nearshore system utilizes a Real-Time Kinematic Differential Global Positioning System (RTK-DGPS) mounted on a personal watercraft and integrated with a survey quality echo sounder. The nearshore system was tested by repeating transects in the nearshore. The repeatability of the profiles demonstrated a standard deviation of 6.2 cm from the mean absolute difference of 8.0 cm. The beach survey utilizes RTK-DGPS equipment carried by the surveyor in a backpack. The maximum expected error for the beach survey is approximately []4 cm. The system is an accurate, mobile and efficient method to obtain beach profiles. Additional accuracy may be obtained by integrating a motion sensor and CTD profiler. The survey data are processed using commercially available software packages and programs developed for this project. The processed data is integrated and stored in a geographic information system (GIS). The data collected exemplify morphological features indicative of erosion due to overwash. This is consistent with visual observations and numerical model results provided by Howard (1999). The shoreline movement since 1996 is consistent with historical data and is related to storm events. The current research has provided a survey system capable of performing fast, accurate surveys in the nearshore and a baseline data set. The survey system is fully operational and will be instrumental in the ongoing research related to the Highway 87 reconstruction project. The baseline data set, together with sediment analyses data and water level predictions, provides the foundation from which further investigations will be conducted and will provide information that can be used for the design of the new highway.
Wamsley, Ty V
Real-Time Raman Gas Composition Sensor.pdf
Sensor Sensor Opportunity Technology/Capability Overview Benefits to Partner Development Status Contact The NETL Real-time Raman Gas Composition Analyzer determines the composition of a flowing gaseous sample in real-time and provides the concentration of each gas in that sample. . . . Testing partners would have the opportunity to evaluate the performance of the prototype system, implement new feed-forward controls, and may help shape the commercial product configuration This sensor will greatly benefit the power industry, as well as other industries utilizing gaseous input or output streams by enabling smarter control to increase process efficiency and reduce emissions We are seeking opportunities to field test the prototype instruments in power and industrial applications, as well
Real Time Monitoring of Self Assembled Monolayers Using ATR: Implications
Real Time Monitoring of Self Assembled Monolayers Using ATR: Implications Real Time Monitoring of Self Assembled Monolayers Using ATR: Implications to Atmospheric Organic Surfaces Speaker(s): Yael Dubowski Date: December 10, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Hugo Destaillats Most studies of heterogeneous reactions on aerosols have focused on their implications for gas phase species. Less attention, however, has been given to the modification of aerosol surfaces during such reactions. Alteration of aerosol surface species may affect their hygroscopic and radiative properties as well as their reactivity toward other atmospheric trace species. In the present study, we use self-assembled organic monolayers (SAM) as proxies for atmospheric organic aerosols. Detection of even very short carbon chains (i.e., C3) as well as continuous monitoring of the SAMs
REAL-TIME BUILDING ENERGY SIMULATION USING ENERGYPLUS AND THE REAL-TIME BUILDING ENERGY SIMULATION USING ENERGYPLUS AND THE BUILDING CONTROLS VIRTUAL TEST BED Xiufeng Pang 1 , Prajesh Bhattacharya 1 , Zheng O'Neill 2 , Philip Haves 1 , Michael Wetter 1 , and Trevor Bailey 2 1 Lawrence Berkeley National Laboratory, Berkeley, CA, USA 2 United Technologies Research Center, East Hartford, CT, USA ABSTRACT Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures (Haves et al., 2001, Lee et al., 2007). To address this problem, the paper presents a simulation-based whole building performance monitoring tool that allows a
Wide-area, real-time monitoring and visualization system
A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.
Budhraja, Vikram S. (Los Angeles, CA); Dyer, James D. (La Mirada, CA); Martinez Morales, Carlos A. (Upland, CA)
Real-time performance monitoring and management system
Budhraja, Vikram S.; Dyer, James D.; Martinez Morales, Carlos A.
Refinement and Verification of Real-Time Systems
This paper discusses highly general mechanisms for specifying the refinement of a real-time system as a collection of lower level parallel components that preserve the timing and functional requirements of the upper level specification. These mechanisms are discussed in the context of ASTRAL, which is a formal specification language for real-time systems. Refinement is accomplished by mapping all of the elements of an upper level specification into lower level elements that may be split among several parallel components. In addition, actions that can occur in the upper level are mapped to actions of components operating at the lower level. This allows several types of implementation strategies to be specified in a natural way, while the price for generality (in terms of complexity) is paid only when necessary. The refinement mechanisms are first illustrated using a simple digital circuit; then, through a highly complex phone system; finally, design guidelines gleaned from these specifications are presented.
Kolano, Paul Z; Kemmerer, Richard A; Mandrioli, Dino
Real time markerless motion tracking using linked kinematic chains
A markerless method is described for tracking the motion of subjects in a three dimensional environment using a model based on linked kinematic chains. The invention is suitable for tracking robotic, animal or human subjects in real-time using a single computer with inexpensive video equipment, and does not require the use of markers or specialized clothing. A simple model of rigid linked segments is constructed of the subject and tracked using three dimensional volumetric data collected by a multiple camera video imaging system. A physics based method is then used to compute forces to align the model with subsequent volumetric data sets in real-time. The method is able to handle occlusion of segments and accommodates joint limits, velocity constraints, and collision constraints and provides for error recovery. The method further provides for elimination of singularities in Jacobian based calculations, which has been problematic in alternative methods.
Luck, Jason P. (Arvada, CO); Small, Daniel E. (Albuquerque, NM)
Slicing Concurrent Real-Time System Specifications for Verification
The high-level specification language CSP-OZ-DC has been shown to be well-suited for modelling and analysing industrially relevant concurrent real-time systems. It allows us to model each of the most important functional aspects such as control flow, data, and real-time requirements in adequate notations, maintaining a common semantic foundation for subsequent verification. Slicing on the other hand has become an established technique to complement the fight against state space explosion during verification which inherently accompanies increasing system complexity. In this paper, we exploit the special structure of CSP-OZ-DC specifications by extending the dependence graph�which usually serves as a basis for slicing�with several new types of dependencies, including timing dependencies derived from the specification�s DC part. Based on this we show how to compute a specification slice and prove correctness of our approach.
Program on Technology Innovation: Real Time NDE for Welding
This report describes real-time nondestructive evaluation (NDE) for welding and provides an update on the NDE methods being investigated and developed for flaw detection during welding and the corresponding technical results. It also provides a summary of the future proposed work.BackgroundIt has been recognized that efficient, high-quality welding processes are essential to the economical development and safety of new advanced and operational nuclear ...
Real-time pricing -- supplanted by Price-risk derivatives?
Future trends in pricing options for wholesale electrical generation are discussed. Specifically, the effect of price derivatives on electricity consumption are examined. Economic analyses are presented for customer demand in real-time pricing scenarios with and without a price derivative hedge. It is determined that consumption will be curtailed even when price caps have been purchased. Consumption behavior is also analyzed to determine the effect of different price caps; regardless of price, consumption is curtailed in response to price.
O`Sheasy, M.
Real time loss detection for SNM in process
This paper discusses the basis of a design for real time special nuclear material (SNM) loss detectors. The design utilizes process measurements and signal processing techniques to produce a timely estimate of material loss. A state estimator is employed as the primary signal processing algorithm. Material loss is indicated by changes in the states or process innovations (residuals). The design philosophy is discussed in the context of these changes.
Candy, J.V.; Dunn, D.R.; Gavel, D.T.
Real-time Pricing Demand Response in Operations
Abstract�Dynamic pricing schemes have been implemented in commercial and industrial application settings, and recently they are getting attention for application to residential customers. Time-of-use and critical-peak-pricing rates are in place in various regions and are being piloted in many more. These programs are proving themselves useful for balancing energy during peak periods; however, real-time (5 minute) pricing signals combined with automation in end-use systems have the potential to deliver even more benefits to operators and consumers. Besides system peak shaving, a real-time pricing system can contribute demand response based on the locational marginal price of electricity, reduce load in response to a generator outage, and respond to local distribution system capacity limiting situations. The US Department of Energy (DOE) is teaming with a mid-west electricity service provider to run a distribution feeder-based retail electricity market that negotiates with residential automation equipment and clears every 5 minutes, thus providing a signal for lowering or raising electric consumption based on operational objectives of economic efficiency and reliability. This paper outlines the capability of the real-time pricing system and the operational scenarios being tested as the system is rolled-out starting in the first half of 2012.
Widergren, Steven E.; Marinovici, Maria C.; Berliner, Teri; Graves, Alan
U.S. Energy Information Administration (EIA) Indexed Site
Energy Disruptions Energy Disruptions EIA tracks and reports on selected significant storms that impact or could potentially impact energy infrastructure. See past historical events reported on right or real-time storm tracking with energy infrastructure maps below. Energy Infrastructure with Real-time Storm Information To view the interactive map ensure that Adobe Flash Player version 11.1.0 or greater is installed. To view the interactive map ensure that scripts and interactive content are permitted to run, and that Adobe Flash Player version 11.1.0 or greater is installed. Get Adobe Flash Player Map details and data Send map questions, comments and suggestions to: firstname.lastname@example.com Historical Reports Sandy - Landfall October 29, 2012 Isaac - Landfall August 29, 2012 Irene - Landfall August 27, 2011
Imaging gene expression in real-time using aptamers
Signal transduction pathways are usually activated by external stimuli and are transient. The downstream changes such as transcription of the activated genes are also transient. Real-time detection of promoter activity is useful for understanding changes in gene expression, especially during cell differentiation and in development. A simple and reliable method for viewing gene expression in real time is not yet available. Reporter proteins such as fluorescent proteins and luciferase allow for non-invasive detection of the products of gene expression in living cells. However, current reporter systems do not provide for real-time imaging of promoter activity in living cells. This is because of the long time period after transcription required for fluorescent protein synthesis and maturation. We have developed an RNA reporter system for imaging in real-time to detect changes in promoter activity as they occur. The RNA reporter uses strings of RNA aptamers that constitute IMAGEtags (Intracellular MultiAptamer GEnetic tags), which can be expressed from a promoter of choice. The tobramycin, neomycin and PDC RNA aptamers have been utilized for this system and expressed in yeast from the GAL1 promoter. The IMAGEtag RNA kinetics were quantified by RT-qPCR. In yeast precultured in raffinose containing media the GAL1 promoter responded faster than in yeast precultured in glucose containing media. IMAGEtag RNA has relatively short half-life (5.5 min) in yeast. For imaging, the yeast cells are incubated with their ligands that are labeled with fluorescent dyes. To increase signal to noise, ligands have been separately conjugated with the FRET (F�rster resonance energy transfer) pairs, Cy3 and Cy5. With these constructs, the transcribed aptamers can be imaged after activation of the promoter by galactose. FRET was confirmed with three different approaches, which were sensitized emission, acceptor photobleaching and donor lifetime by FLIM (fluorescence lifetime imaging microscopy). Real-time transcription was measured by FLIM-FRET, which was detected by the decrease in donor lifetime resulting from ligand binding to IMAGEtags that were newly synthesized from the activated GAL1 promoter. The FRET signal was specific for transcribed IMAGEtags.
Shin, Il Chung
A Novel comprehensive method for real time Video Motion Detection Surveillance
This article describes a comprehensive system for surveillance and monitoring applications. The development of an efficient real time video motion detection system is motivated by their potential for deployment in the areas where security is the main concern. The paper presents a platform for real time video motion detection and subsequent generation of an alarm condition as set by the parameters of the control system. The prototype consists of a mobile platform mounted with RF camera which provides continuous feedback of the environment. The received visual information is then analyzed by user for appropriate control action, thus enabling the user to operate the system from a remote location. The system is also equipped with the ability to process the image of an object and generate control signals which are automatically transmitted to the mobile platform to track the object.
Mishra, Sumita
CERTS 2012 Program Review - Real Time Simulation of Power Grid Operation & Contral - Mani Venkatasubramanian, WSU
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
Power Grid Simulator Power Grid Simulator Mani V. Venkatasubramanian Dave Anderson, Chuanlin Zhao Carl Hauser, David Bakken Anjan Bose Washington State University Pullman WA 2 GridSim - Real Time Simulation of Power Grid Operation & Control * Funded by USDOE * Project team: Mani Venkatasubramanian (Project Lead), Anjan Bose, Dave Bakken, Carl Hauser, Chuanlin Zhao, Dave Anderson, Alex Ning, Ming Meng, Lin Zhang * Simulate PMU like real-time responses of large- scale power system including power grid dynamics and communication network 3 Project Objectives Improve Reliability and Security of the Electric Power Grid by developing * The new communications and information systems needed to support better automatic controls and operator support tools * The new wide area automatic algorithms needed
Real-Time Monitoring and Assessment of Circuit Breaker Operations for
Circuit breakers (CBs) are very important elements in the power system. They are used to switch other equipment in and out of service. Circuit breakers need to be reliable since their incorrect operation can cause major issues with power system protection and control. Today�s practice in monitoring circuit breaker operation and status in real time is reduced to the use of Remote Terminal Units (RTUs) of Supervisory Control and Data Acquisition (SCADA) system to assess CB status. More detailed information about the control circuit performance may be obtained by CB test equipment typically used for maintenance diagnostics [1]. This paper addresses two important issues: a) how improved CB monitoring may be implemented in real-time, and b) what would be the benefits of such an implementation. The results reported in this paper are coming from two research projects, conducted using funding from CenterPoint Energy and DOE-CERTS aimed at development of software for automated analysis of CB data and the other covering development of the CB data acquisition unit respectively. The paper is devoted to description of a prototype implementation of a real-time CB monitoring system. The system consists of a new CB monitoring data acquisition IED that is located at circuit breaker and captures detailed information about its operation in real-time. The CB files are transferred to the concentrator PC where the application software performs automated analysis and makes an assessment about the operational status of the breaker. The software is based on signal processing and expert system processing. Application example using actual field data is discussed. The paper ends with some conclusions, acknowledgments and a list of references.
M. Kezunovic; G. Latisko; N. Ved
A distributed hard real-time Java system for high mobility components
In this work we propose a methodology for providing real-time capabilities to component-based, on-the-fly recon?gurable, distributed systems. In such systems, software components migrate across computational resources at run-time to allow applications to adapt to changes in user requirements or to external events. We describe how we achieve run-time recon?guration in distributed Java applications by appropriately migrating servers. Guaranteed-rate schedulers at the servers provide the necessary temporal protection and so simplify remote method invocation management. We describe how we manage overhead and resource utilization by controlling the parameters of the server schedulers. According to our measurements, this methodology provides real-time capability to component-based recon?gurable distributed systems in an effcient and effective way. In addition, we propose a new resource discovery protocol, REALTOR, which is based on a combination of pull-based and push-based resource information dissemination. REALTOR has been designed for real-time component-based distributed applications in very dynamic or adverse environments. REALTOR supports survivability and information assurance by allowing the migration of components to safe locations under emergencies suchas externalattack, malfunction, or lackofresources. Simulation studies show that under normal and heavy load conditions REALTOR remains very effective in finding available resources, and does so with a reasonably low communication overhead.REALTOR 1)effectively locates resources under highly dynamic conditions, 2) has an overhead that is system-size independent, and 3) works well in highlyadverse environments.We evaluate the effectiveness of a REALTOR implementation as part of Agile Objects, an infrastructure for real-time capable, highly mobile Java components.
Rho, Sangig
Energy-aware real-time communication in wireless ad-hoc micro sensors network
Perfect functioning not only at hardware level but also at software level design is indispensable to quench the thirst of an ideal real time communication. From software perspective, in the timeless sensitive communication context, Real-Time Operating ... Keywords: energy awareness, real-time communication, real-time operating system, sensor network
Sohail Jabbar; Abid Ali Minhas
HARTEX: a safe real-time kernel for distributed computer control systems
A hard real-time kernel is presented for distributed computer control systems (DCCS), highlighting a number of novel features, such as integrated scheduling of hard and soft real-time tasks as well as tasks and resources; high-performance time management ... Keywords: distributed computer control systems, object modelling techniques, real-time communication, real-time operating systems, scheduling algorithms
C. K. Angelov; I. E. Ivanov; A. Burns
Real-time nonlinear optimization as a generalized equation.
We establish results for the problem of tracking a time-dependent manifold arising in real-time optimization by casting this as a parametric generalized equation. We demonstrate that if points along a solution manifold are consistently strongly regular, it is possible to track the manifold approximately by solving a single linear complementarity problem (LCP) at each time step. We derive sufficient conditions guaranteeing that the tracking error remains bounded to second order with the size of the time step even if the LCP is solved only approximately. We use these results to derive a fast, augmented Lagrangian tracking algorithm and demonstrate the developments through a numerical case study.
Zavala, V. M.; Anitescu, M. (Mathematics and Computer Science)
Near real time vapor detection and enhancement using aerosol adsorption
A vapor sample detection method where the vapor sample contains vapor and ambient air and surrounding natural background particles. The vapor sample detection method includes the steps of generating a supply of aerosol that have a particular effective median particle size, mixing the aerosol with the vapor sample forming aerosol and adsorbed vapor suspended in an air stream, impacting the suspended aerosol and adsorbed vapor upon a reflecting element, alternatively directing infrared light to the impacted aerosol and adsorbed vapor, detecting and analyzing the alternatively directed infrared light in essentially real time using a spectrometer and a microcomputer and identifying the vapor sample.
Novick, Vincent J.; Johnson, Stanley A.
Real-time human collaboration monitoring and intervention
A method of and apparatus for monitoring and intervening in, in real time, a collaboration between a plurality of subjects comprising measuring indicia of physiological and cognitive states of each of the plurality of subjects, communicating the indicia to a monitoring computer system, with the monitoring computer system, comparing the indicia with one or more models of previous collaborative performance of one or more of the plurality of subjects, and with the monitoring computer system, employing the results of the comparison to communicate commands or suggestions to one or more of the plurality of subjects.
Merkle, Peter B. (Sandia Park, NM); Johnson, Curtis M. (Sandia Park, NM); Jones, Wendell B. (Albuquerque, NM); Yonas, Gerold (Albuquerque, NM); Doser, Adele B. (Albuquerque, NM); Warner, David J. (Rancho Santa Fe, CA)
Development plan for an advanced drilling system with real-time diagnostics (Diagnostics-While-Drilling)
This proposal provides the rationale for an advanced system called Diagnostics-while-drilling (DWD) and describes its benefits, preliminary configuration, and essential characteristics. The central concept is a closed data circuit in which downhole sensors collect information and send it to the surface via a high-speed data link, where it is combined with surface measurements and processed through drilling advisory software. The driller then uses this information to adjust the drilling process, sending control signals back downhole with real-time knowledge of their effects on performance. The report presents background of related previous work, and defines a Program Plan for US Department of Energy (DOE), university, and industry cooperation.
A Proposal for an Advanced Drilling System with Real-Time Diagnostics (Diagnostics-While-Drilling)
In this paper, we summarize the rationale for an advanced system called Diagnostics-While-Drilling (DWD) and describe its benefits, preliminary configuration, and essential characteristics. The central concept is a closed data circuit in which downhole sensors collect information and send it to the surface via a high-speed data link, where it is combined with surface measurements and processed through drilling advisory software. The driller then uses this information to adjust the drilling process, sending control signals back downhole with real-time knowledge of their effects on performance. We outline a Program Plan for DOE, university, and industry to cooperate in the development of DWD technology.
Finger, J.T.; Mansure, A.J.; Prairie, M.R.
Real-Time Water Quality Management in the Grassland Water District
The purpose of the research project was to advance the concept of real-time water quality management in the San Joaquin Basin by developing an application to drainage of seasonal wetlands in the Grassland Water District. Real-time water quality management is defined as the coordination of reservoir releases, return flows and river diversions to improve water quality conditions in the San Joaquin River and ensure compliance with State water quality objectives. Real-time water quality management is achieved through information exchange and cooperation between shakeholders who contribute or withdraw flow and salt load to or from the San Joaquin River. This project complements a larger scale project that was undertaken by members of the Water Quality Subcommittee of the San Joaquin River Management Program (SJRMP) and which produced forecasts of flow, salt load and San Joaquin River assimilative capacity between 1999 and 2003. These forecasts can help those entities exporting salt load to the River to develop salt load targets as a mechanism for improving compliance with salinity objectives. The mass balance model developed by this project is the decision support tool that helps to establish these salt load targets. A second important outcome of this project was the development and application of a methodology for assessing potential impacts of real-time wetland salinity management. Drawdown schedules are typically tied to weather conditions and are optimized in traditional practices to maximize food sources for over-wintering wildfowl as well as providing a biological control (through germination temperature) of undesirable weeds that compete with the more proteinaceous moist soil plants such as swamp timothy, watergrass and smartweed. This methodology combines high resolution remote sensing, ground-truthing vegetation surveys using established survey protocols and soil salinity mapping using rapid, automated electromagnetic sensor technology. This survey methodology could be complemented with biological surveys of bird use and invertebrates to produce a robust long-term monitoring strategy for habitat health and sustainability.
Quinn, Nigel W.T.; Hanna, W. Mark; Hanlon, Jeremy S.; Burns, Josphine R.; Taylor, Christophe M.; Marciochi, Don; Lower, Scott; Woodruff, Veronica; Wright, Diane; Poole, Tim
Data Assimilation within the Advanced Circulation (ADCIRC) Modeling Framework for Hurricane Storm Surge Forecasting
Accurate, real-time forecasting of coastal inundation due to hurricanes and tropical storms is a challenging computational problem requiring high-fidelity forward models of currents and water levels driven by hurricane-force winds. Despite best ...
T. Butler; M. U. Altaf; C. Dawson; I. Hoteit; X. Luo; T. Mayo
Repsol Cartagena Utilities Real Time Optimization -- A Success Story
"In 1998 Honeywell Hi-Spec Solutions successfully implemented a Utilities Optimization system at Repsol's Cartagena Spain Refinery Complex. The Utilities Optimization System is implemented using Honeywell's Hi-Spec Solutions ProfitMax R100 system for Real Time Optimization (RTO) which runs on an NT-based workstation. ProfitMax uses the NOVA modeling system from DOT Products Inc. for non-linear modeling and optimization. Data is supplied through Uniformance PHD, Honeywell Hi-Spec Solutions' real time database. The cogeneration system is controlled using Honeywell's IDC 3000 system. The Utility System at Repsol Cartagena refinery is a cogeneration system that supplies both electricity and steam to the site. The surplus electricity is exported to the National grid. The system consists of the following: � Gas Turbine and Heat Recovery Steam Generator � Four fired boilers � Four steam headers at various pressures � Three Back-Pressure/Condensing steam turbo-generators � Plant condensate system � Fuel gas collection and distribution system � Process steam producers and consumers � Numerous dual drivers (steam/electric) for various plant loads "
Piccolo, M.; Shyr, S.
Real-Time System Log Monitoring/Analytics Framework
Analyzing system logs provides useful insights for identifying system/application anomalies and helps in better usage of system resources. Nevertheless, it is simply not practical to scan through the raw log messages on a regular basis for large-scale systems. First, the sheer volume of unstructured log messages affects the readability, and secondly correlating the log messages to system events is a daunting task. These factors limit large-scale system logs primarily for generating alerts on known system events, and post-mortem diagnosis for identifying previously unknown system events that impacted the systems performance. In this paper, we describe a log monitoring framework that enables prompt analysis of system events in real-time. Our web-based framework provides a summarized view of console, netwatch, consumer, and apsched logs in real- time. The logs are parsed and processed to generate views of applications, message types, individual/group of compute nodes, and in sections of the compute platform. Also from past application runs we build a statistical profile of user/application characteristics with respect to known system events, recoverable/non-recoverable error messages and resources utilized. The web-based tool is being developed for Jaguar XT5 at the Oak Ridge Leadership Computing facility.
Oral, H Sarp [ORNL; Dillow, David A [ORNL; Park, Byung H [ORNL; Shipman, Galen M [ORNL; Geist, Al [ORNL; Gunasekaran, Raghul [ORNL
Real-time individualized training vectors for experiential learning.
Military training utilizing serious games or virtual worlds potentially generate data that can be mined to better understand how trainees learn in experiential exercises. Few data mining approaches for deployed military training games exist. Opportunities exist to collect and analyze these data, as well as to construct a full-history learner model. Outcomes discussed in the present document include results from a quasi-experimental research study on military game-based experiential learning, the deployment of an online game for training evidence collection, and results from a proof-of-concept pilot study on the development of individualized training vectors. This Lab Directed Research & Development (LDRD) project leveraged products within projects, such as Titan (Network Grand Challenge), Real-Time Feedback and Evaluation System, (America's Army Adaptive Thinking and Leadership, DARWARS Ambush! NK), and Dynamic Bayesian Networks to investigate whether machine learning capabilities could perform real-time, in-game similarity vectors of learner performance, toward adaptation of content delivery, and quantitative measurement of experiential learning.
Willis, Matt; Tucker, Eilish Marie; Raybourn, Elaine Marie; Glickman, Matthew R.; Fabian, Nathan
Initial Studies Toward Real-Time Transmission Path Rating
Demand continues to increase while transmission line construction is being constrained by multiple factors� economic, environmental, and political. Effective and efficient utilization of transmission lines is thus of great importance in an open access environment. Large blocks of power are transferred from areas with inexpensive generation to heavy load demand areas or areas with high generation costs. This results in some transmission paths being loaded closer to their path ratings, which limits further power transfer between areas. Traditionally, rating of important paths was determined off line by assuming the worst-case study scenario; once determined, it could be used for years. With increasing uncertainty arising from rapid growth of renewable energy and smart technologies, path rating studies are needed in near-real time to account for the latest system status and support a reliable and economic power grid. This paper adopts a simplified procedure based on standards of the North American Electric Reliability Corporation (NERC) to determine total transfer capability (TTC) or transfer limit for the purpose of demonstrating the benefits and necessity of real-time path rating. Initial studies are conducted to compute TTC of a two-area test system and a 39-bus test system. Results indicate that path rating can be significantly affected by loading conditions, generator schedules, system topology and other factors.
Singh, Ruchi; Diao, Ruisheng; Cai, Niannian; Huang, Zhenyu; Tuck, Brian; Guo, Xinxin
8 8 Gasification Technologies contacts Gary J. stiegel Gasification Technology Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236 412-386-4499 email@example.com Jenny tennant Project Manager National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507 304-285-4830 firstname.lastname@example.com David Rue Principal Investigator Gas Technology Institute 1700 South Mount Prospect Road Des Plaines, IL 60018 847-768-0508 firstname.lastname@example.com Real Time Flame moniToRing oF gasiFieR BuRneR and injecToRs Description Combustion scientists and engineers have studied radiant emissions of various flames for many years. For some time, technologists have understood the rich potential for
A study on real-time pricing electric tariffs
With deregulation in the electric industry, customers have new opportunities to reduce their electricity cost, one of which consists of using real-time pricing (RTP) tariffs. The authors surveyed electric utilities in the country to investigate how these tariffs are presently implemented to help potential customers understand RTP tariffs. The survey found that the most common type of RTP tariff is a two-part tariff. It consists of a customer baseline load (CBL) charge and an energy charge (or credit) based on usage above (or below) the CBL charged at hourly prices. This type of tariff is explained using Oklahoma Gas and Electric (OG and E)`s day-ahead-pricing (DAP) tariff and calculation examples. This article also investigates the effect of customer flexibility on the charges under the DAP tariff by comparing three different types of customer response.
Mont, J.A.; Turner, W.C. [Oklahoma State Univ., Stillwater, OK (United States). School of Industrial Engineering and Management
Real-time multiradar simulation with a multiprocessor
Radar coverage of a region for air defense or air traffic control often necessitates the use of multiple radars to compensate for terrain-caused coverage problems and/or guarantee a uniformly good probability of detection over the region. The multi-radar simulator has been built to provide means wherein a real time simulation of a system of netted radars, their radar processors, and collocated trackers can be performed. This simulator is an MIMD machine utilizing the building block processor as the processing element. This implementation has proven easy to program and has brought the necessary computational speed to the problem of emulating effectively a set of radars and their processors observing the same air picture from different vantage points. 5 references.
Hiner, F.P. III
Real-time neural network earthquake profile predictor
A neural network has been developed that uses first-arrival energy to predict the characteristics of impending earthquake seismograph signals. The propagation of ground motion energy through the earth is a highly nonlinear function. This is due to different forms of ground motion as well as to changes in the elastic properties of the media throughout the propagation path. The neural network is trained using seismogram data from earthquakes. Presented with a previously unseen earthquake, the neural network produces a profile of the complete earthquake signal using data from the first seconds of the signal. This offers a significant advance in the real-time monitoring, warning, and subsequent hazard minimization of catastrophic ground motion. 17 figs.
Leach, R.R.; Dowla, F.U.
A neural network has been developed that uses first-arrival energy to predict the characteristics of impending earthquake seismograph signals. The propagation of ground motion energy through the earth is a highly nonlinear function. This is due to different forms of ground motion as well as to changes in the elastic properties of the media throughout the propagation path. The neural network is trained using seismogram data from earthquakes. Presented with a previously unseen earthquake, the neural network produces a profile of the complete earthquake signal using data from the first seconds of the signal. This offers a significant advance in the real-time monitoring, warning, and subsequent hazard minimization of catastrophic ground motion.
Leach, Richard R. (Castro Valley, CA); Dowla, Farid U. (Castro Valley, CA)
This paper reports our efforts to develop an instrument, TG-1, to measure particulate emissions from diesel engines in real-time. TG-1 while based on laser-induced incandescence allows measurements at 10 Hz on typical engine exhausts. Using such an instrument, measurements were performed in the exhaust of a 1.7L Mercedes Benz engine coupled to a low inertia dynamometer. Comparative measurements performed under engine steady state conditions showed the instrument to agree within {+-}12% of measurements performed with an SMPS. Moreover, the instrument had far better time response and time resolution than a TEOM{reg_sign} 1105. Also, TG-1 appears to surpass the shortcomings of the TEOM instrument, i.e., of yielding negative values under certain engine conditions and, being sensitive to external vibration.
Gupta, S; Shih, J; Hillman, G; sekar, R; Graze, R; Shimpi, S; Martin, W; Pier, D
Implementing image processing applications on a real-time architecture
Abstract This paper presents three examples of realtime image processing applications that were implemented on a data- ow architecture developed at the ETCA. Low-level image processing is performed on a regular three-dimensional network of 1024 custom data- ow processors. Image features previously extracted in the low-level step are handled by a two-dimensional network of 12 general purpose processors. Fast prototyping of real-time image processing applications is achieved through a programming environment including a complete stream from functional programming speci cation to network con guration. A large class of algorithms can be implemented. Among them we describe a non-linear lter, a connected component labeling and a colored object tracking. Figure 1: The Functional Computer I.
G. Quenot; C. Coutelle; J. Serot; B. Zavidovique
When prices are set properly, they serve as important signals to guide customers to consume the efficient quantity of a good. However, in electricity markets many consumers do not pay prices that reflect the scarcity of power. The true social cost of power varies throughout a typical day; power is usually low cost during off-peak periods in the night but it is high cost during a hot July afternoon. Economists have argued for several decades that consumers should pay a price that varies with the true social cost of power. However, the vast majority of consumers pay a fixed price whether they use power at midnight or noon. This can create a host of economic inefficiencies. Fortunately, this is beginning to change. In many states, including Texas, large commercial and industrial users of electricity pay prices that reflect the social cost of power at the time of consumption. This pricing mechanism is called �real-time pricing� (RTP) in electricity markets. I have access to a unique, new dataset of virtually all 8000 commercial and industrial users in Texas that includes information on both whether they pay real-time prices and their hourly consumption for one year. First, I econometrically iv estimate the types of commercial and industrial firms that are likely to �sign up� for time-varying prices. Second, I test whether the customers on real-time prices reduce demand substantially in response to higher prices. I find that customers with greater total hourly consumption are more likely to be on real-time pricing. Customers with more �peaky? load profiles are less likely to be on real-time pricing. Customers in south and west Texas have a greater probability of being on RTP than customers in Houston. I also study whether customers on RTP decrease consumption on hot summer days when electricity is scare. These results have important implications for the design of both deregulated electricity markets and policies that seek to increase the amount of electricity generated with renewable sources of energy.
Fontana, Michelle
Real-time monitoring of the TVA power system
This article describes how the Tennessee Valley Authority (TVA) is experimenting with one of the many concepts for the uses of phasor measurements, that of utilizing phasor measurement units (PMUs) as a state estimation system. However, the term state estimation no longer applies; what is being performed is a state determination in near real-time. The PMU is a transducer that can measure voltage and current with very high accuracy. It has the ability to calculate watts, vars, frequency, and phase angle twelve times per power line cycle. The PMU can be placed in the power system so as to provide time-stamped voltage and current phasors that can be used as state variables. Input from other PMUs throughout the power system can be synchronized to within 1 microsecond via the Global Positioning System (GPS). These real-time state variables provided by the PMUs allow state estimation to be replaced by state determination. The PMUs monitoring the power system can also provide the necessary data to accurately depict events and disturbances. The PMU can be set to be triggered by an event or disturbance. A user-defined table of data, including pretrigger data, which is the sampled data for a specified interval, is stored in the PMU. The data from a single PMU can be retrieved and analyzed by popular data analysis packages to show the performance of control and protection equipment. The tables retrieved from a network of PMUs can be used to determine the system response to these events and disturbances.
Cease, T.W.; Feldhaus, B. (Univ. of Tennessee, Chattanooga, TN (United States))
We report on the results from the first six months of the Catalina Real-Time Transient Survey (CRTS). In order to search for optical transients (OTs) with timescales of minutes to years, the CRTS analyses data from the Catalina Sky Survey which repeatedly covers 26,000 of square degrees on the sky. The CRTS provides a public stream of transients that are bright enough to be followed up using small telescopes. Since the beginning of the survey, all CRTS transients have been made available to astronomers around the world in real time using HTML tables,RSS feeds, and VOEvents. As part of our public outreach program, the detections are now also available in Keyhole Markup Language through Google Sky. The initial discoveries include over 350 unique OTs rising more than 2 mag from past measurements. Sixty two of these are classified as supernovae (SNe), based on light curves, prior deep imaging and spectroscopic data. Seventy seven are due to cataclysmic variables (CVs; only 13 previously known), while an additional 100 transients were too infrequently sampled to distinguish between faint CVs and SNe. The remaining OTs include active galactic nucleus, blazars, high-proper-motions stars, highly variable stars (such as UV Ceti stars), and transients of an unknown nature. Our results suggest that there is a large population of SNe missed by many current SN surveys because of selection biases. These objects appear to be associated with faint host galaxies. We also discuss the unexpected discovery of white dwarf binary systems through dramatic eclipses.
Drake, A. J.; Djorgovski, S. G.; Mahabal, A.; Graham, M. J.; Williams, R. [California Institute of Technology, 1200 E. California Blvd., CA 91225 (United States); Beshore, E.; Larson, S.; Boattini, A.; Gibbs, A.; Hill, R.; Kowalski, R. [Department of Planetary Sciences, University of Arizona, Lunar and Planetary Laboratory, 1629 E. University Blvd., Tucson, AZ 85721 (United States); Christensen, E. [Gemini Observatory, Casilla 603, La Serena (Chile); Catelan, M. [Pontificia Universidad Catolica de Chile, Departamento de AstronomIa y AstrofIsica, Av. Vicuna Mackena 4860, 782-0436 Macul, Santiago (Chile)
A novel real-time coalminer localization and tracking system based on self-organized sensor networks
With the development of information technology, we envision that the key of improving coal mine safety is how to get realtime positions of miners. In this paper, we propose a prototype system for real-time coal miner localization and tracking based on ...
Yang Wang; Liusheng Huang; Wei Yang
Real-time highway traffic condition assessment framework using vehicle-infrastructure integration (VII) with artificial intelligence (AI)
This paper presents a framework for real-time highway traffic condition assessment using vehicle kinetic information, which is likely to be made available from vehicle-infrastructure integration (VII) systems, in which vehicle and infrastructure agents ... Keywords: artificial intelligence (AI), incident detection, vehicle kinetics, vehicle-infrastructure integration (VII)
Yongchang Ma; Mashrur Chowdhury; Adel Sadek; Mansoureh Jeihani
Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power...
9.03.10 -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers Geek-Up09.03.10 -- Innovative Silicon Wafers, Real-Time Power Traders and...
On the stability of wholesale electricity markets under real-time pricing
The paper proposes a mathematical model for the dynamic evolution of supply, demand, and clearing prices under a class of real-time pricing mechanisms characterized by passing on the real-time wholesale prices to the end ...
Roozbehani, Mardavij
The design and implementation of real-time environment monitoring systems based on wireless sensor networks
This research focuses on the implementation of a real-time environment monitoring system for environment detection using wireless sensor networks. The purpose of our research is to construct the system on the real-time environment with the technology ...
Kyung-Hoon Jung; Seok-Cheol Lee; Hyun-Suk Hwang; Chang-Soo Kim
Armored RNA as virus surrogate in a real-time reverse transcriptase PCR assay proficiency panel
second ring test to evaluate RT-PCR detection methods. Vet.real-time, reverse transcription-PCR assays for detection ofHigh-throughput real-time RT-PCR assay to detect the exotic
Hietala, S K; Crossley, B M
Quantification of enterococci and human adenoviruses in environmental samples by real-time PCR
uorogenic probe tech- nique (TaqMan PCR) to the detection of2003. Multiplexed, real-time PCR for quantitative detectionS. Sayler. 2003. Real-time PCR quanti?- cation of nitrifying
He, J W; Jiang, Sunny C
Hardware support for WCET analysis of hard real-time multicore systems
The increasing demand for new functionalities in current and future hard real-time embedded systems like automotive, avionics and space industries is driving an increase in the performance required in embedded processors. Multicore processors represent ... Keywords: analyzability, cache partitioning, hard real-time, interconnection network, multicore, real-time embedded systems, wcet
Marco Paolieri; Eduardo Qui�ones; Francisco J. Cazorla; Guillem Bernat; Mateo Valero
Can critical real-time services of public infrastructures run over ethernet and MPLS networks?
With the adoption of Ethernet-IP as the main technology for building end-to-end real-time networks, the requirement to deliver high availability, quality and secure services over Ethernet and MPLS has become strategic. Critical real-time traffic is generally ... Keywords: MPLS, critical systems, ethernet, real-time networks
Jaime Lloret; Francisco Javier Sanchez; Hugo Coll; Fernando Boronat
Rapid Real-Time PCR Method for Bacterial Source Tracking Using DNA FRET Probes
Rapid Real-Time PCR Method for Bacterial Source Tracking Using DNA FRET Probes Jeff Brady, Research have developed a 10 locus genotyping method using real-time PCR with adjacent-hybridizing DNA: real-time PCR, FRET, Microbial Source Tracking #12;
An Automated Test Framework for Hard Real-Time Communication Systems
An Automated Test Framework for Hard Real-Time Communication Systems MITHUN HANUMANAHALLI NAGAIAH ii #12;An Automated Test Framework for Hard Real-Time Communication Systems Master thesis project are subjected to hard real-time communication require- ments. The purpose of this thesis is in introducing tools
Jantsch, Axel
Real-time chemical analysis of aerosol particles
An important aspect of environmental atmospheric monitoring requires the characterization of airborne microparticles and aerosols. Unfortunately, traditional sample collection and handling techniques are prone to contamination and interference effects that can render an analysis invalid. These problems can be avoided by using real-time atmospheric sampling techniques followed by immediate mass spectrometric analysis. The former is achieved in these experiments via a two state differential pumping scheme that is attached directly to a commercially available quadruple ion trap mass spectrometer. Particles produced by an external particle generator enter the apparatus and immediately pass through two cw laser/fiberoptic based detectors positioned two centimeters apart. Timing electronics measure the time between detection events, estimate the particles arrival in the center of the ion trap and control the firing of a YAG laser. Ions produced when the UV laser light ablates the particle`s surface are stored by the ion trap for mass analysis. Ion trap mass spectrometers have several advantages over conventional time-of-flight instruments. First, they are capable of MS/MS analysis by the collisional dissociation of a stored species, This permits complete chemical characterization of airborne samples. Second, ion traps are small and lend themselves to portable, field oriented applications.
Yang, M.; Whitten, W.B.; Ramsey, J.M.
Real Time Pricing Tie Line Control: A Case Study
A Tie Line Control System maintains the purchase quantity of electrical energy an industrial facility buys from a utility company. Implementing an advanced Tie Line Control system automates the buy versus make decision process for an industrial facility in order to optimize the use of energy by either a supply-side method or a demand-side method. If a facility possesses supply-side resources, such as self-generation, the user can choose to maximize on-site energy generation, when it is less expensive than the price offered by the utility. Conversely, when the price to buy energy is less expensive than it is to produce it, a facility may choose to back off on self-generation and buy more energy. One such Advanced Tie Line Control system, designed by Automation Applications, Incorporated (AAI) and installed at a pilot facility, utilizes a real-time pricing utility contract and provides savings approaching one million dollars per year. This paper is a case study of this system implementation and the results achieved.
Childress, R.
Systemwide Energy Minimization in Real-Time Embedded Systems
Traditionally, dynamic voltage scaling (DVS) techniques have focused on minimizing the processor power consumption as opposed to the entire system energy. However, the slowdown resulting from DVS can increase the energy consumption of components like memory and network interfaces. Furthermore, leakage power consumption, which is increasing with the scaling device technology, must also be considered. In this paper, we present an algorithm to compute task slowdown factors based on the contribution of the processor leakage and standby energy consumption of the resources in the system. We combine slowdown with procrastination of task executions to extend sleep intervals which significantly reduces the leakage energy consumption. We show that the scheduling approach minimizes the total static and dynamic energy consumption of the systemwide resources. In this work, we consider a real-time system model using the Earliest Deadline First (EDF) policy. Our simulation experiments using randomly generated task sets show on an average 10% energy gains over traditional dynamic voltage scaling. Our procrastination scheme increases the average energy savings to 15%.
Ravindra Jejurikar; Rajesh Gupta
Real time curriculum map for internal medicine residency
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Background: To manage the voluminous formal curriculum content in a limited amount of structured teaching time, we describe the development and evaluation of a curriculum map for academic half days (AHD) in a core internal medicine residency program. Methods: We created a 3-year cyclical curriculum map (an educational tool combining the content, methodology and timetabling of structured teaching), comprising a matrix of topics under various specialties/themes and corresponding AHD hours. All topics were cross-matched against the ACP-ASIM in-training examination, and all hours were colour coded based on the categories of core competencies. Residents regularly updated the map on a real time basis. Results: There were 208 topics covered in 283 AHD hours. All topics represented core competencies with minimal duplication (78 % covered once in 3 years). Only 42 hours (15%) involved non-didactic teaching, which increased after implementation of the map (18�19 hours/year versus baseline 5 hours/year). Most AHD hours (78%) focused on medical expert competencies. Resident satisfaction (90 % response) was high throughout (range 3.64 � 0.21, 3.84 � 0.14 out of 4),
Roger Y Wong; J Mark Roberts; Roger Y Wong; J Mark Roberts
Sampling apparatus for real-time alkali monitor
This report describes a sampling apparatus which provides representatives samples of high-temperature, high-pressure coal- derived process gases for analysis of alkali concentrations in either a gaseous phase or in a particulate-bearing gaseous phase by a real-time alkali monitor. The apparatus includes a sampling probe in the form of a ceramic tube that is inserted in the stream of combustion products for gathering a representative stream of gaseous products. Critical flow orifices are connected in series between the probe and an alkali monitor burner. A valved vent line connected in-line between the critical flow orifices is used to vent a significant percentage of the flow from the first critical flow orifice device to maintain the upstream pressure required to provide the desired flow rate through the second critical orifice to the alkali monitor burner. The gaseous products in the system between the probe and the burner is heated to inhibit condensation of alkali species. 2 figs.
French, W.E.; Logan, R.G.; Pineault, R.L.
Real-Time Out-of-Core Rendering
Hierarchical levels of details (HLODs) have proven to be an efficient way to visualize complex environments and models even in an out-of-core system. Large objects are partitioned into a spatial hierarchy and for each node a level of detail is generated for efficient view-dependent rendering. To ensure correct matching between adjacent nodes in the hierarchy care has to be taken to prevent cracks along the cuts. This either leads to severe simplification constraints at the cuts and thus to a significantly higher number of triangles or the need for a costly runtime stitching of these nodes. In this paper we present an out-of-core visualization algorithm that overcomes this problem by filling the cracks generated by the simplification algorithm with appropriately shaded Fat Borders. Furthermore, several minor yet important improvements of previous approaches are made. This way we come up with a simple nevertheless efficient viewdependent rendering technique which allows for the natural incorporation of state-of-theart culling, simplification, compression and prefetching techniques leading to real-time rendering performance of the overall system. Several examples demonstrate the efficiency of our approach.
Michael Guthe; Pavel Borodin; Reinhard Klein
Real-time multi-mode neutron multiplicity counter
Embodiments are directed to a digital data acquisition method that collects data regarding nuclear fission at high rates and performs real-time preprocessing of large volumes of data into directly useable forms for use in a system that performs non-destructive assaying of nuclear material and assemblies for mass and multiplication of special nuclear material (SNM). Pulses from a multi-detector array are fed in parallel to individual inputs that are tied to individual bits in a digital word. Data is collected by loading a word at the individual bit level in parallel, to reduce the latency associated with current shift-register systems. The word is read at regular intervals, all bits simultaneously, with no manipulation. The word is passed to a number of storage locations for subsequent processing, thereby removing the front-end problem of pulse pileup. The word is used simultaneously in several internal processing schemes that assemble the data in a number of more directly useable forms. The detector includes a multi-mode counter that executes a number of different count algorithms in parallel to determine different attributes of the count data.
Rowland, Mark S; Alvarez, Raymond A
Framework for Real-Time All-Hazards Global Situational Awareness
Information systems play a pivotal role in emergency response by making consequence analysis models based on up-to-date data available to decision makers. While consequence analysis models have been used for years on local scales, their application on national and global scales has been constrained by lack of non-proprietary data. This chapter describes how this has changed using a framework for real-time all-hazards situational awareness called the Energy Awareness and Resiliency Standardized Services (EARSS) as an example. EARSS is a system of systems developed to collect non-proprietary data from diverse open content sources to develop a geodatabase of critical infrastructures all over the world. The EARSS system shows that it is feasible to provide global disaster alerts by producing valuable information such as texting messages about detected hazards, emailing reports about affected areas, estimating an expected number of impacted people and their demographic characteristics, identifying critical infrastructures that may be affected, and analyzing potential downstream effects. This information is provided in real-time to federal agencies and subscribers all over the world for decision making in humanitarian assistance and emergency response. The system also uses live streams of power outages, weather, and satellite surveillance data as events unfold. This, in turn, is combined with other public domain or open content information, such as media reports and postings on social networking websites, for complete coverage of the situation as events unfold. Working with up-to-date information from the EARSS system, emergency responders on the ground could pre-position their staff and resources, such as emergency generators and ice, where they are most needed.
Omitaomu, Olufemi A [ORNL; Fernandez, Steven J [ORNL; Bhaduri, Budhendra L [ORNL
A Real-Time Imaging System for Stereo Atomic Microscopy at SPring-8's BL25SU
We have developed a real-time photoelectron angular distribution (PEAD) and Auger-electron angular distribution (AEAD) imaging system at SPring-8 BL25SU, Japan. In addition, a real-time imaging system for circular dichroism (CD) studies of PEAD/AEAD has been newly developed. Two PEAD images recorded with left- and right-circularly polarized light can be regarded as a stereo image of the atomic arrangement. A two-dimensional display type mirror analyzer (DIANA) has been installed at the beamline, making it possible to record PEAD/AEAD patterns with an acceptance angle of {+-}60 deg. in real-time. The twin-helical undulators at BL25SU enable helicity switching of the circularly polarized light at 10Hz, 1Hz or 0.1Hz. In order to realize real-time measurements of the CD of the PEAD/AEAD, the CCD camera must be synchronized to the switching frequency. The VME computer that controls the ID is connected to the measurement computer with two BNC cables, and the helicity information is sent using TTL signals. For maximum flexibility, rather than using a hardware shutter synchronizing with the TTL signal we have developed software to synchronize the CCD shutter with the TTL signal. We have succeeded in synchronizing the CCD camera in both the 1Hz and 0.1Hz modes.
Matsushita, Tomohiro; Guo, Fang Zhun; Muro, Takayuki [JASRI/SPring-8, Kouto 1-1-1, Sayo-cho, Sayo-gun, Hyogo, 679-5198 (Japan); Matsui, Fumihiko; Daimon, Hiroshi [Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0192 (Japan)
Real Time Quantitative Radiological Monitoring Equipment for Environmental Assessment
The Idaho National Laboratory (INL) has developed a suite of systems that rapidly scan, analyze, and characterize radiological contamination in soil. These systems have been successfully deployed at several Department of Energy (DOE) laboratories and Cold War Legacy closure sites. Traditionally, these systems have been used during the characterization and remediation of radiologically contaminated soils and surfaces; however, subsequent to the terrorist attacks of September 11, 2001, the applications of these systems have expanded to include homeland security operations for first response, continuing assessment and verification of cleanup activities in the event of the detonation of a radiological dispersal device. The core system components are a detector, a spectral analyzer, and a global positioning system (GPS). The system is computer controlled by menu-driven, user-friendly custom software designed for a technician-level operator. A wide variety of detectors have been used including several configurations of sodium iodide (NaI) and high-purity germanium (HPGe) detectors, and a large area proportional counter designed for the detection of x-rays from actinides such as Am-241 and Pu-238. Systems have been deployed from several platforms including a small all-terrain vehicle (ATV), hand-pushed carts, a backpack mounted unit, and an excavator mounted unit used where personnel safety considerations are paramount. The INL has advanced this concept, and expanded the system functionality to create an integrated, field-deployed analytical system through the use of tailored analysis and operations software. Customized, site specific software is assembled from a supporting toolbox of algorithms that streamline the data acquisition, analysis and reporting process. These algorithms include region specific spectral stripping, automated energy calibration, background subtraction, activity calculations based on measured detector efficiencies, and on-line data quality checks and measures. These analyses are combined to provide real-time areal activity and coverage maps that are displayed to the operator as the survey progresses. The flexible functionality of the INL systems are well suited to multiple roles supporting homeland security needs.
John R. Giles; Lyle G. Roybal; Michael V. Carpenter
TREC Microblog 2012 Track: Real-Time Algorithm for ...
... Security Agency, Information Security). Figure 2: Wikipedia relation between cat and dog 4.2 Noun-Adjective Pseudo Relevance ...
Killing Two Birds with One Stone: Can Real-Time Pricing Support Retail Competition and Demand Response?
are paying prices indexed to the real-time spot market, andusage at hourly prices indexed to the real-time and/or day-who pay prices indexed to the real-time market. Utility and
Barbose, Galen; Bharvirkar, Ranjit; Goldman, Charles; Hopper, Nicole; Neenan, Bernie
Press Room - Press Releases - U.S. Energy Information Administration (EIA)
Gasoline and Diesel Fuel Update (EIA)
9, 2013 9, 2013 EIA provides new website tool to keep users informed during hurricane season With peak hurricane season approaching, the U.S. Energy Information Administration (EIA) is introducing interactive maps that combine real-time data feeds from the National Hurricane Center with more than 20 map layers showing the nation's energy infrastructure and resources. This new tool, available around the clock on the EIA website, allows industry, energy analysts, government decision makers, and the American public to better see and understand the potential impact of a storm. "This new mapping capability combines detailed energy infrastructure information with real-time tropical storm information from the National Hurricane Center," said EIA Administrator Adam Sieminski. "This is a great
Real-Time Spectroscopic Ellipsometry as an In-Situ Diagnostic for Hot-Wire CVD Growth of Amorphous and Epitaxial Si
Real-time spectroscopic ellipsometry (RTSE) has proven to be an exceptionally valuable tool in the optimization of hot wire CVD (HWCVD) growth of both silicon heterojunction (SHJ) solar cells and thin epitaxial layers of crystal silicon (epi-Si). For SHJ solar cells, RTSE provides real-time thickness information and rapid feedback on the degree of crystallinity of the thin intrinsic layers used to passivate the crystal silicon (c-Si) wafers. For epi-Si growth, RTSE provides real-time feedback on the crystallinity and breakdown of the epitaxial growth process. Transmission electron microscopy (TEM) has been used to verify the RTSE analysis of thickness and crystallinity. In contrast to TEM, RTSE provides feedback in real time or same-day, while TEM normally requires weeks. This rapid feedback has been a key factor in the rapid progress of both the SHJ and epi-Si projects.
Levi, D.; Teplin, C.; Iwaniczko, E.; Wang, T.; Wang, Q.; Yan, Y.; Branz, H.
Available Technologies: Single Step, Real-Time Protein Kinase ...
Scientists at Berkeley Lab and the University of California have developed a kinase profiling assay and detection system that can acquire kinetic information of ...
Wholesale power price maps reflect real-time constraints ...
U.S. States. State energy information, detailed and overviews. Maps. Maps by energy source and topic, includes forecast maps. Countries. Country ...
Microsoft PowerPoint - Real-Time Dynamic Brake Assessment poster.ppt [Compatibility Mode]
Dynamic Brake Assessment Dynamic Brake Assessment Purpose Conduct a proof-of-concept test to examine the feasibility of developing an on-board system to assess a vehicle's ability to stop based on typical low-pressure in-service braking events. Partnerships H.T. Hackney Company MGM Brakes Overview Funded through the Federal Motor Carrier Safety Administration's Vehicle and Roadside Operations Division Concept stemming from on the Department of Energy's Medium Truck Duty Cycle research as well as previous research conducted for the National Highway Transportation Safety Administration. Signals to be collected Real-time brake application pressure Vehicle speed and acceleration GPS location and grade information Vehicle weight (current load) Engine parameters such as RPM and torque To be conducted October 2010 -
Vision-based Real-time Monitoring on the Behavior of Fish School
This paper introduces a technique which can automatically monitor the behavior of fish school in images in real-time. Results on the activity level, distribution and social interaction within the school are generated based on the spatial information extracted from captured images. The fish behaviors we observe here are selected based on a list of responses which fish exhibit when they are in distress. As it is a very challenging task to perform manual observations on fish, this technique creates a convenient alternative for researchers who need to study the behavior of fish. Instead, monitoring can be done effortlessly as images are translated to statistical results which can be used to describe the behavior of fish in the school. On top of this, the results can also detect any change to the water quality. 1.
Boon Fong Chew; How-lung Eng; Myo Thida
The Potential of Energy Management and Control Systems for Real-Time Electricity Pricing Programs
In implementing an integrated electric utility network, direct communication between the utility and customers is an important component. The rapid penetration of computer building control technology in larger commercial and industrial customers provides an opportunity for the utility to implement this network by linking directly with equipment already in place: customer-owned energy management and control systems (EMCS). This paper assesses the potential use of EMCSs in utility real-time pricing (RTP) efforts by discussing the procedures and technical requirements for transferring prices to the EMCS. The perspectives and objectives of the customer and the utility will also be discussed. We will discuss how price information can be used by the customer and the EMCS to implement demand-limiting strategies, both in currently available demand-management algorithms, and in potential price-responsive cost-management algorithms.
Akbari, H.; Heinemeier, K. E.
A Real-Time Simulator for Doubly Fed Induction Generator based Wind Turbine Applications
Abstract- This paper describes a real-time simulator of wind turbine generator system suitable for controller design and tests. The simulated generator is a grid-connected doubly fed induction machine with back-to-back PWM voltage source vector control of the rotor. The simulator is based on RT-LAB real-time simulation platform that allows for easy model-to-real-time-target design from Simulink models. The paper puts special emphasis on the fixed-step simulation problematic of kHz-range PWM inverter drives and the techniques used in the real-time simulator to accurately simulate those drives.
Christian Dufour; Jean B�langer
Real Time Location Tool For Precision Tracking Of Passive UHF RFID Tags In Two Dimensions.
??Bredow, Jonathan This thesis addresses this problem of a precise RTLS (Real Time Location System) by implementing a Passive UHF RFID system. A software is� (more)
Kenarangui, Nasir
System level energy management in networked real-time embedded systems.
??Real-time embedded systems play a prominent role in a variety of applications ranging from medical sensors in human body to signaling sensors in war fields.� (more)
Gathala, Sudha Anil Kumar
Search Method for Real-time Knowledge Discovery Modeled on the ...
Search Method for Real-time Knowledge Discovery Modeled on the Human Brain Oak Ridge National Laboratory. Contact ORNL About This Technology
Certification of Instrumentation Techniques for Resources Management of Real-Time Systems.
??Dynamic real-time systems have to meet timing requirements in unpredictable environments, where available resources might vary, running tasks might change, and task workloads might differ.� (more)
Tan, Zhenyu
Method and Apparatus for In-Situ Real Time Characterization of ...
Method and Apparatus for In-Situ Real Time Characterization of Energy Storage and Energy Conversion Devices Idaho National Laboratory. Contact INL ...
Real-Time Combined Heat and Power Operational Strategy Using a Hierarchical Optimization Algorithm
Existing attempts to optimize the operation of Combined Heat and Power (CHP) systems for building applications have two major limitations: the electrical and thermal loads are obtained from historical weather profiles; and the CHP system models ignore transient responses by using constant equipment efficiencies. This paper considers the transient response of a building combined with a hierarchical CHP optimal control algorithm to obtain a real-time integrated system that uses the most recent weather and electric load information. This is accomplished by running concurrent simulations of two transient building models. The first transient building model uses current as well as forecast input information to obtain short term predictions of the thermal and electric building loads. The predictions are then used by an optimization algorithm, i.e., a hierarchical controller, that decides the amount of fuel and of electrical energy to be allocated at the current time step. In a simulation, the actual physical building is not available and, hence, to simulate a real-time environment, a second, building model with similar but not identical input loads are used to represent the actual building. A state-variable feedback loop is completed at the beginning of each time step by copying, i.e., measuring, the state variable from the actual building and restarting the predictive model using these ?measured? values as initial conditions. The simulation environment presented in this paper features nonlinear effects such as the dependence of the heat exchanger effectiveness on their operating conditions. The results indicate that the CHP engine operation dictated by the proposed hierarchical controller with uncertain weather conditions have the potential to yield significant savings when compared to conventional systems using current values of electricity and fuel prices.
Yun, Kyung Tae; Cho, Heejin; Luck, Rogelio; Mago, Pedro J.
A Cost Effective Real-Time Tracking System Prototype Using Integrated GPS/GPRS Module
This paper presents a real time tracking system that provides accurate localizations of the tracked vehicle with low cost. The system is implemented using GM862 cellular quad band module. A monitoring server and a graphical user interface on a website ... Keywords: GPS, GSM, ITS, Real Time Tracking
Wael El-Medany; Alauddin Al-Omary; Riyadh Al-Hakim; Sufyan Al-Irhayim; Mustafa Nusaif
An optimal k-exclusion real-time locking protocol motivated by multi-GPU systems
Graphics processing units (GPUs) are becoming increasingly important in today's platforms as their growing generality allows for them to be used as powerful co-processors. In previous work, the authors showed that GPUs may be integrated into real-time ... Keywords: GPGPU, Global scheduling, Real-time systems, Semaphore protocols
Glenn A. Elliott; James H. Anderson
Non-markovian analysis for model driven engineering of real-time software
Quantitative evaluation of models with stochastic timings can decisively support schedulability analysis and performance engineering of real-time concurrent systems. These tasks require modeling formalisms and solution techniques that can encompass stochastic ... Keywords: model driven development, non-markovian stochastic analysis, real-time systems, software performance engineering
Laura Carnevali; Marco Paolieri; Alessandro Santoni; Enrico Vicario
Progress towards a low-cost high-speed real-time multi-rate simulator
Recent research has focused on developing techniques that use field-programmable gate arrays (FPGAs) to support real-time simulation with frame times of a few microseconds or less. These techniques can be used to simulate, for example, modern power electronic ... Keywords: FPGA, distributed, high-speed, multi-rate, real-time
John Zenor; Dale Word; Richard Bednar; Roy Crosbie; Narain Hingorani
Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints
Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints Shengquan Wang. We develop energy-efficient speed scheduling schemes for frame-based real-time tasks under thermal in order to achieve thermal-constrained energy-efficient design. However, this does not work. The existing
Wang, Shengquan
A multiple camera system with real-time volume reconstruction for articulated skeleton pose tracking
We present a multi-camera system for recovering skeleton body pose, by performing real-time volume reconstruction and using a hierarchical stochastic pose search algorithm. Different from many multicamera systems that require a few connected workstations, ... Keywords: multi-camera system, pose estimation, real-time volume reconstruction
Zheng Zhang; Hock Soon Seah; Chee Kwang Quah; Alex Ong; Khalid Jabbar
On compressing data in wireless sensor networks for energy efficiency and real time delivery
Wireless sensor networks possess significant limitations in storage, bandwidth, processing, and energy. Additionally, real-time sensor network applications such as monitoring poisonous gas leaks cannot tolerate high latency. While some good data compression ... Keywords: Compression, Latency, Real-time, Wireless sensor network
Tommy Szalapski; Sanjay Madria
Robust and accurate global vision system for real time tracking of multiple mobile robots
This paper presents a new global vision system for tracking of multiple mobile robots. To the best knowledge of the authors it outperforms all existing global vision systems with respect to measurement precision and accuracy, high speed and real time ... Keywords: Global vision, Intelligent space, Multirobot systems, Real time object tracking, Robot soccer
Mi�el Brezak; Ivan Petrovi?; Edouard Ivanjko
A real-time shadow approach for an augmented reality application using shadow volumes
Shadows add a level of realism to a rendered image. Moreover, they are used as visual clues to determine spacial relationships and real-time shadows will gain importance in current real-time computer graphics applications for this reason. Twenty-five ... Keywords: augmented reality, shadow volumes
Michael Haller; Stephan Drab; Werner Hartmann
Verifying Timing Constraints of Real-Time Systems by Means of Evolutionary Testing
Many industrial products are based on the use of embedded computer systems. Usually, these systems have to fulfil real-time requirements, and correct system functionality depends on their logical correctness as well as on their temporal correctness. ... Keywords: Real-time systems, evolutionary algorithm, evolutionary optimization, evolutionary testing, temporal behavior, temporal correctness , test strategy, testing, validation, verification
Joachim Wegener; Matthias Grochtmann
Hybrid power management in real time embedded systems: an interplay of DVFS and DPM techniques
Energy-aware scheduling of real time applications over multiprocessor systems is considered in this paper. Early research reports that while various energy-saving policies, for instance Dynamic Power Management (DPM) and Dynamic Voltage & Frequency ... Keywords: Dynamic power management, Dynamic voltage & frequency scaling, Energy, Machine learning, Multiprocessor scheduling, Power, Real time systems
Muhammad Khurram Bhatti; C�cile Belleudy; Michel Auguin
Real-time observation of lithium fibers growth inside a nanoscale lithium-ion battery
Real-time observation of lithium fibers growth inside a nanoscale lithium-ion battery Hessam August 2011; accepted 29 August 2011; published online 22 September 2011) Formation of lithium dendrite to observe the real-time nucleation and growth of the lithium fibers inside a nanoscale Li-ion battery. Our
Endres. William J.
An Approach to Platform Independent Real-Time Programming: (2) Practical Application
In a previously published companion paper a method for extending programming languages with timing constructs was proposed. It was shown that the extension enables the construction of real-time programs that can be proven correct independently of ... Keywords: distributed systems, platform independence, real-time programming, scheduling
Jozef Hooman; Onno Van Roosmalen
Reactive and Real-Time Systems Course: How to Get the Most Out of it
The paper describes the syllabus and the students� projects from a graduate course on the subject of �Reactive and Real-Time Systems�, taught at Tel-Aviv University and at the Open University of Israel. The course focuses on the development ... Keywords: course syllabus, reactive real-time systems, scheduling, synchronous languages, verification
Tal Lev-Ami; Shmuel S. Tyszberowicz
Hardware support in a middleware for distributed and real-time embedded applications
One of the main challenges in the development of tools and methodologies for a multiprocessor real-time embedded system is to reuse already developed software, but at the same time obtaining low memory footprint, low energy consumption, and minimal area, ... Keywords: MPSoCs, embedded applications, energy efficiency, middleware, real-time systems
Elias T. Silva, Jr; Fl�vio R. Wagner; Edison P. Freitas; Carlos E. Pereira
A STEP-compliant computer numerical control based on real-time Ethernet for circuit boardmilling
With the globalisation of manufacturing industry, extendable and networked computer numerical control systems that can support bidirectional and seamless data exchange are in urgent need. This paper presents a STEP-NC compliant controller based on Real-time ... Keywords: Gerber, Real-time Ethernet RTE, STEP-NC, circuit board milling, computer numerical control CNC
Ke Wang; Riliang Liu; Xun Xu; Chenrui Zhang; Lin Yang
The Fixed Priority Scheduling Problem for Energy Harvesting Real-Time Systems
The Fixed Priority Scheduling Problem for Energy Harvesting Real-Time Systems Younès Chandarli to establish a schedulability test for a fixed priority real-time scheduling problem with energy constraints problem for energy harvesting systems was the one of Mossé [1]. The problem was solved under a very
Software support tools for high-speed real-time simulations
Frame times as low as 1-2 microseconds are needed for high-speed real-time (HSRT) simulations of power-electronic systems. To achieve such short frame times it is necessary to use special processing platforms and both digital signal processors (DSPs) ... Keywords: electric circuits, real-time simulation, simulation software
J. J. Zenor; R. E. Crosbie; R. Bednar; D. Word; N. G. Hingorani
Impact of storage on the efficiency and prices in real-time electricity markets
We study the effect of energy-storage systems in dynamic real-time electricity markets. We consider that demand and renewable generation are stochastic, that real-time production is affected by ramping constraints, and that market players seek to selfishly ... Keywords: electricity pricing, energy economics, energy storage system, market efficiency
Nicolas Gast, Jean-Yves Le Boudec, Alexandre Prouti�re, Dan-Cristian Tomozei
Eventrons: a safe programming construct for high-frequency hard real-time applications
While real-time garbage collection has achieved worst-case latencies on the order of a millisecond, this technology is approaching its practical limits. For tasks requiring extremely low latency, and especially periodic tasks with frequencies above 1 ... Keywords: allocation, real-time, scheduling
Daniel Spoonhower; Joshua Auerbach; David F. Bacon; Perry Cheng; David Grove
Real-time Eulerian water simulation using a restricted tall cell grid
We present a new Eulerian fluid simulation method, which allows real-time simulations of large scale three dimensional liquids. Such scenarios have hitherto been restricted to the domain of off-line computation. To reduce computation time we use a hybrid ... Keywords: fluid simulation, multigrid, real time, tall cell grid
Nuttapong Chentanez; Matthias M�ller
Real-Time 2D NMR Identification of Analytes Undergoing Continuous Chromatographic Separation
Real-Time 2D NMR Identification of Analytes Undergoing Continuous Chromatographic Separation Boaz of multidimensional nuclear magnetic resonance (NMR) spectra within a single scan. A promising application opened up, with the real-time acquisition of a series of 2D 1 H NMR spectra arising from a mixture of compounds subject
Frydman, Lucio
Hard Real-Time Garbage Collection on Chip Multi-Processors
Hard Real-Time Garbage Collection on Chip Multi-Processors DISSERTATION submitted in partial are however not suited for use in hard real-time systems. As a failure in these systems can have catastrophic of the respective system. In the past few years, methods for garbage collection that are suitable for use in hard
Patterns for Automatic Generation of Soft Real-time System Models
Worst-case assumptions about the timing of systems are often too conservative when analyzing distributed soft real-time systems as they lead to over-dimensioned and expensive products. For these systems, a certain percentage of deadline misses is often ... Keywords: Modeling patterns, pattern-based system description, soft real-time systems, stochastic model
Oana Florescu; Jeroen Voeten; Bart Theelen; Henk Corporaal
Verification of a Multimodel Storm Surge Ensemble around New York City and Long Island for the Cool Season
Three real-time storm surge forecasting systems [the eight-member Stony Brook ensemble (SBSS), the Stevens Institute of Technology�s New York Harbor Observing and Prediction System (SIT-NYHOPS), and the NOAA Extratropical Storm Surge (NOAA-ET) ...
Tom Di Liberto; Brian A. Colle; Nickitas Georgas; Alan F. Blumberg; Arthur A. Taylor
CERTS Review REAL-TIME PRICE FORECAST WITH BIG DATA A STATE SPACE APPROACH
Review Review REAL-TIME PRICE FORECAST WITH BIG DATA A STATE SPACE APPROACH Lang Tong (PI), Robert J. Thomas, Yuting Ji, and Jinsub Kim School of Electrical and Computer Engineering, Cornell University Jie Mei, Georgia Institute of Technology August 7, 2013 CERTS Review DATA QUALITY AND ITS EFFECTS ON MARKET OPERATIONS DENY OF SERVICE ATTACK ON REAL-TIME ELECTRICITY MARKET COVER UP PROTECTION AGAINST TOPOLOGY ATTACK Lang Tong (PI), Robert J. Thomas, and Jinsub Kim Cornell University August 8, 2013 Project overview Objectives Accurate short-term probabilistic forecasting of real-time LMP. Incorporate real-time measurements (e.g. SCADA/PMU). Scalable computation techniques. Summary of results A real-time LMP model with forecasting and measurement
Neural-optimal control algorithm for real-time regulation of in-line storage in combined sewer systems
Attempts at implementing real-time control systems as a cost-effective means of minimizing the pollution impacts of untreated combined sewer overflows have largely been unsustained due to the complexity of the real-time control problem. Optimal real-time ... Keywords: Artificial intelligence, Combined sewers, Hydraulic sewer models, Neural networks, Optimal control, Real-time control, Urban stormwater management
Suseno Darsono; John W. Labadie
Microsecond delays on non-real time operating systems
We have developed microsecond timing and profiling software that runs on standard Windows and Linux based operating systems. This software is orders of magnitudes better than most of the standard native functions in wide use. Our software libraries calibrate RDTSC in microseconds or seconds to provide two different types of delays: a ''Guaranteed Minimum'' and a precision ''Long Delay'', which releases to the kernel. Both return profiling information of the actual delay.
Angstadt, R.; Estrada, J.; Diehl, H.T.; Flaugher, B.; Johnson, M.; /Fermilab
Real-time wideband cylindrical holographic surveillance system
A wideband holographic cylindrical surveillance system is disclosed including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply Fast Fourier Transforms and obtain a three dimensional cylindrical image. 13 figs.
Sheen, D.M.; McMakin, D.L.; Hall, T.E.; Severtsen, R.H.
Bayesian based design of real-time sensor systems for high-risk indoor contaminants
The sudden release of toxic contaminants that reach indoor spaces can be hazardousto building occupants. To respond effectively, the contaminant release must be quicklydetected and characterized to determine unobserved parameters, such as release locationand strength. Characterizing the release requires solving an inverse problem. Designinga robust real-time sensor system that solves the inverse problem is challenging becausethe fate and transport of contaminants is complex, sensor information is limited andimperfect, and real-time estimation is computationally constrained.This dissertation uses a system-level approach, based on a Bayes Monte Carloframework, to develop sensor-system design concepts and methods. I describe threeinvestigations that explore complex relationships among sensors, network architecture,interpretation algorithms, and system performance. The investigations use data obtainedfrom tracer gas experiments conducted in a real building. The influence of individual sensor characteristics on the sensor-system performance for binary-type contaminant sensors is analyzed. Performance tradeoffs among sensor accuracy, threshold level and response time are identified; these attributes could not be inferred without a system-level analysis. For example, more accurate but slower sensors are found to outperform less accurate but faster sensors. Secondly, I investigate how the sensor-system performance can be understood in terms of contaminant transport processes and the model representation that is used to solve the inverse problem. The determination of release location and mass are shown to be related to and constrained by transport and mixing time scales. These time scales explain performance differences among different sensor networks. For example, the effect of longer sensor response times is comparably less for releases with longer mixing time scales. The third investigation explores how information fusion from heterogeneous sensors may improve the sensor-system performance and offset the need for more contaminant sensors. Physics- and algorithm-based frameworks are presented for selecting and fusing information from noncontaminant sensors. The frameworks are demonstrated with door-position sensors, which are found to be more useful in natural airflow conditions, but which cannot compensate for poor placement of contaminant sensors. The concepts and empirical findings have the potential to help in the design of sensor systems for more complex building systems. The research has broader relevance to additional environmental monitoring problems, fault detection and diagnostics, and system design.
Sreedharan, Priya; Sreedharan, Priya
IN SITU Device for Real-Time Catalyst Deactivation Measurements
SCR catalyst management has become an important operations and maintenance activity for coal-fired utility boilers in the United States. To facilitate this activity, a method to determine Catalyst Activity in situ is being developed. This report describes the methodology and presents the results of a two ozone season demonstration conducted at Alabama Power Company's Gorgas Unit 10 during the 2005 and 2006 ozone seasons. The results showed that the in situ measurements are in good agreement with the laboratory measurements and the technique has some advantages over the traditional laboratory method of determining Catalyst Activity and Reactor Potential. SCR Performance is determined by the overall Reactor Potential (the product of the Catalyst Activity and the available surface area per unit of flue gas). The in situ approach provides a direct measurement of Reactor Potential under actual operating conditions, whereas laboratory measurements of Catalyst Activity need to be coupled with estimates of catalyst pluggage and flue gas flowrate in order to assess Reactor Potential. The project also showed that the in situ activity results can easily be integrated into catalyst management software to aid in making informed catalyst decisions.
Fossil Energy Research
DHARMA: A Tool for Evaluating Dynamic Scheduling Algorithms for Real-time Multiprocessor Systems
A majority of today's real-time systems assume a priori knowledge of task characteristics and hence are based on static designs which contribute to their high cost and inflexibility. The next generation hard real-time systems must be designed to be dynamic and flexible. This provides the motivation to study various dynamic scheduling proposals. In this paper, we discuss the design and implementation of a tool, called DHARMA, which is an attempt towards satisfying such requirements. The tool provides an environment to study various dynamic scheduling algorithms with or without fault-tolerance requirements and associated resource reclaiming algorithms in a multiprocessor real-time system.
G. Manimaran; Anand Manikutty; C. Siva Ram Murthy
Environmental Measurement While Drilling System for Real-Time Field Screening of Contaminants
Sampling during environmental drilling is essential to fully characterize the spatial distribution and migration of subsurface contaminants. However, analysis of the samples is expensive and time-consuming: off-site laboratory analysis can take weeks or months. Real-time information on environmental conditions, drill bit location and temperature during drilling is valuable in many environmental restoration operations. This type of information can be used to provide field screening data and improved efficiency of site characterization activities. The Environmental Measurement-While-Drilling (EMWD) System represents an innovative blending of new and existing technology in order to obtain real-time data during drilling. The system consists of two subsystems. The down-hole subsystem (at the drill bit) consists of sensors, a power supply, a signal conditioning and transmitter board, and a radio-frequency (RF) coaxial cable. The up-hole subsystem consists of a battery pack/coil, pickup coil, receiver, and personal computer. The system is compatible with fluid miser drill pipe, a directional drilling technique that uses minimal drilling fluids and generates little to no secondary waste. In EMWD, downhole sensors are located behind the drill bit and linked by a high-speed data transmission system to a computer at the surface. Sandia-developed Windows{trademark}-based software is used for data display and storage. As drilling is conducted, data is collected on the nature and extent of contamination, enabling on-the-spot decisions regarding drilling and sampling strategies. Initially, the downhole sensor consisted of a simple gamma radiation detector, a Geiger-Mueller tube (GMT). The design includes data assurance techniques to increase safety by reducing the probability of giving a safe indication when an unsafe condition exists. The EMWD system has been improved by the integration of a Gamma Ray Spectrometer (GRS) in place of the GMT. The GRS consists of a sodium iodide-thallium activated crystal coupled to a photomultiplier tube (PMT). The output of the PMT goes to a multichannel analyzer (MCA).The MCA data is transmitted to the surface via a signal conditioning and transmitter board similar to that used with the GMT. The EMWD system is described and the results of the GRS field tests and field demonstration are presented.
Lockwood, G.J.; Normann, R.A.; Williams, C.V.
Steps to Establish a Real-Time Transmission Monitoring System for
Steps to Establish a Real-Time Transmission Monitoring System for Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to establish a real-time transmission monitoring system for transmission owners and operators within the Eastern and Western interconnections: a report to congress pursuant to section 1839 of the Energy Policy Act of 2005. Section 1839 of the Energy Policy Act of 2005 (EPAct 2005) directs the Secretary of Energy (DOE) and the Federal Energy Regulatory Commission (Commission) to study and report to Congress on the steps that must be taken to establish a system to make available to all transmission owners
Deployment of Demand Response as a Real-Time Resource in Organized Markets
Deployment of Demand Response as a Real-Time Resource in Organized Markets Deployment of Demand Response as a Real-Time Resource in Organized Markets Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Deployment of Demand Response as a Real-Time Resource in Organized Markets Focus Area: Crosscutting Topics: Potentials & Scenarios Website: www.sciencedirect.com/science/article/pii/S1040619008000973 Equivalent URI: cleanenergysolutions.org/content/deployment-demand-response-real-time- Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Technical Assistance Regulations: Resource Integration Planning This article examines the use of demand response as a dispatchable resource
NREL: MIDC/NWTC M2 Real-Time Weather Display
NWTC M2 Real-Time Weather Display This page should automatically refresh every minute. A text based weather display for PDAs is also available. NREL MIDC NWTC M2...
A Real-Time Scheme for the Prediction of Forecast Skill
During the winter of 1988/89, a real-time experimental scheme to predict skill of the ECMWF operational forecast was devised. The scheme was based on statistical relations between skill scores (the predictands) and a number of predictors ...
Franco Molteni; T. N. Palmer
Real-Time Variational Assimilation of Hydrologic and Hydrometeorological Data into Operational Hydrologic Forecasting
Variational assimilation (VAR) of hydrologic and hydrometeorological data into operational hydrologic forecasting is explored. The data assimilated are the hourly real-time observations of streamflow and precipitation, and climatological ...
Dong-Jun Seo; Victor Koren; Neftali Cajina
Real-Time Inference of Mental States from Facial Expressions and Upper Body Gestures
We present a real-time system for detecting facial action units and inferring emotional states from head and shoulder gestures and facial expressions. The dynamic system uses three levels of inference on progressively ...
Baltrusaitis, Tadas
Real-time network traffic prediction based on a multiscale decomposition
The presence of the complex scaling behavior in network traffic makes accurate forecasting of the traffic a challenging task. In this paper we propose a multiscale decomposition approach to real time traffic prediction. The raw traffic data is first ...
Guoqiang Mao
Captured motion data processing for real time synthesis of sign language
This study proposes a roadmap for the creation and specification of a virtual humanoid capable of performing expressive gestures in real time. We present a gesture motion data acquisition protocol capable of handling the main articulators involved in ...
Alexis Heloir; Sylvie Gibet; Franck Multon; Nicolas Courty
Improving RUC-1 Wind Estimates by Incorporating Near-Real-Time Aircraft Reports
A verification study of wind accuracy is presented for wind nowcasts generated by augmenting Rapid Update Cycle (RUC) wind forecasts with near-real-time aircraft reports using the Integrated Terminal Weather System (ITWS) gridded winds algorithm. ...
Rodney E. Cole; Steve M. Green; Matt R. Jardin
Real-Time Ocean Wind Vector Retrieval from Marine Radar Image Sequences Acquired at Grazing Angle
This paper proposes a novel algorithm for retrieving the ocean wind vector from marine radar image sequences in real time. It is presented as an alternative to mitigate anemometer problems, such as blockage, shadowing, and turbulence. Since wind ...
Raul Vicen-Bueno; Jochen Horstmann; Eric Terril; Tony de Paolo; Jens Dannenberg
Quasi-parallel network applications in real-time distribution management system
In modern distribution management systems (DMSs), the real-time calculation of the network's state plays an important role for the operation of the network. High sophisticated algorithms for the estimation and calculation of the system's ...
Izudin Dzafic; Hans-Theo Neisius
System for remote multichannel real-time monitoring of mouse ECG via the Internet
A hardware/software system was developed to allow real-time monitoring of multiple physiological signals simultaneously via the Internet. The hardware is specifically designed for measuring ECG signals from mice, while the ...
Oefinger, Matthew Blake, 1976-
Real-Time Multimodel Superensemble Forecasts of Atlantic Tropical Systems of 1999
In this paper, Atlantic hurricane forecasts for the year 1999 are addressed. The methodology for these forecasts is called the multimodel superensemble. This statistical method makes use of the real-time forecasts provided by a number of ...
C. Eric Williford; T. N. Krishnamurti; Ricardo Correa Torres; Steven Cocke; Zaphiris Christidis; T. S. Vijaya Kumar
A non-intrusive fault tolerant framework for mission critical real-time systems
The need for dependable real-time systems for embedded application is growing, and, at the same time, so does the amount of functionality required from these systems. As testing can only show the presence of errors, not ...
Gorelov, S�bastien
Examination of a Real-Time 3DVAR Analysis System in the Hazardous Weather Testbed
Forecasters and research meteorologists tested a real-time three-dimensional variational data assimilation (3DVAR) system in the Hazardous Weather Testbed during the springs of 2010-2012 to determine its capabilities to assist in the warning ...
Travis M. Smith; Jidong Gao; Kristin M. Calhoun; David J. Stensrud; Kevin L. Manross; Kiel L. Ortega; Chenghao Fu; Darrel M. Kingfield; Kimberly L. Elmore; Valliappa Lakshmanan; Christopher Riedel
Binary Segmentation of Video Sequences in Real Time Francisco J. HernandezLopez and Mariano Rivera
Binary Segmentation of Video Sequences in Real Time Francisco J. HernandezLopez and Mariano Rivera [8, 9]. Francisco Hernandez-Lopez and Mariano Rivera, Binary Segmentation of Video Sequences in Real
Rivera, Mariano
Real-Time Operational Forecasting on Shipboard of the Iceland-Faeroe Frontal Variability
Real-time operational shipboard forecasts of Iceland-Faeroe frontal variability were executed for the first time with a primitive equation mode. High quality, intensive hydrographic surveys during August 1993 were used for initialization, ...
A. R. Robinson; H. G. Arango; W. G. Leslie; A. J. Miller; A. Warn-Varnas; P-M. Poulain
Real-Time Correction of Spatially Nonuniform Bias in Radar Rainfall Data Using Rain Gauge Measurements
A procedure for real-time correction of spatially nonuniform bias in radar rainfall data using rain gauge measurements is described. Developed to complement the existing gauge-based bias correction procedures used in the National Weather Service (...
Dong-Jun Seo; J. P. Breidenbach
Energy-Efficient, Utility Accrual Real-Time Scheduling Under the Unimodal Arbitrary Arrival Model
We present an energy-efficient real-time scheduling algorithm called EUA*, for the unimodal arbitrary arrival model (or UAM). UAM embodies a "stronger" adversary than most arrival models. The algorithm considers application activities that are subject ...
Haisang Wu; Binoy Ravindran; E. Douglas Jensen
Dual-Regression Retrieval Algorithm for Real-Time Processing of Satellite Ultraspectral Radiances
A fast physically based dual-regression (DR) method is developed to produce, in real time, accurate profile and surface- and cloud-property retrievals from satellite ultraspectral radiances observed for both clear- and cloudy-sky conditions. The ...
William L. Smith Sr.; Elisabeth Weisz; Stanislav V. Kireev; Daniel K. Zhou; Zhenglong Li; Eva E. Borbas
Real-Time Forecasting of the Western Australian Summertime Trough: Evaluation of a New Regional Model
The real-time prediction of the location, strength, and structure of the summertime heat trough is a major forecasting problem over Western Australia. Maximum temperatures, wind strength and direction along the west coast, low-level coastal cloud,...
Lance M. Leslie; Terry C. L. Skinner
Improving energy saving in hard real time systems via a modified dual priority scheduling
In this paper, we present a modification of the Dual Priority scheduling algorithm, for hard real-time systems, that takes advantage of its performance to efficiently improve energy saving. The approach exploit the priority scheme to lengthen the runtime ...
M. Angels Moncusi; Alex Arenas; Jesus Labarta
Enhanced modeling : real-time simulation and modeling of graph based problems on interactive workbenches
This thesis presents a methodology and framework for designing systems that apply real-time simulation of computational models throughout the modeling and parameter modification stages of problem solving for graph based ...
Chak, Daniel, 1980-
Real-Time Water Vapor Maps from a GPS Surface Network: Construction, Validation, and Applications
In this paper the construction of real-time integrated water vapor (IWV) maps from a surface network of global positioning system (GPS) receivers is presented. The IWV maps are constructed using a two-dimensional variational technique with a ...
Siebren de Haan; Iwan Holleman; Albert A. M. Holtslag
Catching fish in the stream: real time analysis of audience behavior in social media
In this interactive poster, we describe a system we designed for identifying and tracking the behavior of distinct audiences in social media streams. Keywords: audience behavior, real-time analysis, social media
Yu-Ru Lin; Drew Margolin; Brian Keegan; Mauro Martino; Sasha Goodman; David Lazer
Use of a Real-Time Computer Graphics System in Analysis and Forecasting
Real-time computer graphics systems are being introduced into weather stations throughout the United States. A sample of student forecasters used such a system to solve specific specialized forecasting problems. Results suggest that for some ...
John J. Cahir; John M. Norman; Dale A. Lowry
Real-Time Airborne Analysis of Aircraft Data Supporting Operational Hurricane Forecasting
The Hurricane Research Division has developed a technique for real-time airborne analysis of aircraft data from reconnaissance and research flights in tropical cyclones. The technique uses an onboard workstation that analyzes flight-level ...
Joseph S. Griffin; Robert W. Burpee; Frank D. Marks Jr.; James L. Franklin
Real-time timbral organisation: Selecting samples based upon similarity1
A comparison is made between two systems of real-time sample selection using timbral proximity that has relevance for live performance. Sound files in large sample libraries are analysed for audio features (amplitude RMS, spectral centroid, spectral ...
Arne Eigenfeldt; Philippe Pasquier
Real-time programming and the big ideas of computational literacy
Though notoriously difficult, real-time programming offers children a rich new set of applications, and the opportunity to engage bodily knowledge and experience more centrally in intellectual enterprises. Moreover, the ...
Hancock, Christopher Michael, 1961-
Real-Time Monitoring and Prediction of Modes of Coherent Synoptic to Intraseasonal Tropical Variability
A technique of near-real-time monitoring and prediction of various modes of coherent synoptic to intraseasonal zonally propagating tropical variability is developed. It involves Fourier filtering of a daily updated global dataset for the specific ...
Matthew Wheeler; Klaus M. Weickmann
Joint Reliability and Energy Management for Real-Time Embedded Systems.
?? The Dynamic Voltage Scaling (DVS) technique is the basis of numerous state-of-the-art energy management schemes proposed for real-time embedded systems. However, recent research has� (more)
Zhao, Baoxian
Real-Time Bias Reduction for Satellite-Based Precipitation Estimates
A new approach to reduce biases in satellite-based estimates in real time is proposed and tested in this study. Currently satellite-based precipitation estimates exhibit considerable biases, and there have been many efforts to reduce these biases ...
Yudong Tian; Christa D. Peters-Lidard; John B. Eylander
A Real-Time Hurricane Surface Wind Forecasting Model: Formulation and Verification
A real-time hurricane wind forecast model is developed by 1) incorporating an asymmetric effect into the Holland hurricane wind model; 2) using the National Oceanic and Atmospheric Administration (NOAA)/National Hurricane Center�s (NHC) hurricane ...
Lian Xie; Shaowu Bao; Leonard J. Pietrafesa; Kristen Foley; Montserrat Fuentes
ORNL 2011-G00262/jcn UT-B ID 200601732 08.2011 Search Method for Real-time Knowledge Discovery Modeled on the Human Brain Technology Summary A new ...
Real-time quantitative PCR for enteric adenovirus serotype 40 in environmental waters
adenovirus detection by PCR as an index of human viruses.polluted waters by nested PCR amplification. Appl. Environ.real-time quantitative PCR. J. Clin. Microbiol. Wigand, R. ,
Jiang, Sunny C; Dezfulian, H; Chu, W P
Integer programming-based real-time scheduler in semiconductor manufacturing
This paper demonstrates how an integer programming-based real-time scheduling heuristic approach can be applied for semiconductor manufacturing. Two integer programming formulations of a simplified version of this problem are proposed to model (1) a ...
Myoungsoo Ham; Young Hoon Lee; John W. Fowler
Beyond kWh and kW demand: Understanding the new real-time electric...
Beyond kWh and kW demand: Understanding the new real-time electric power measurement system in LBNL Building 90 Speaker(s): Alex McEachern Date: January 14, 2010 - 12:00pm...
Real-Time Prediction of the Lake Breeze on the Western Shore of Lake Michigan
A forecast verification study of the occurrence and inland penetration of the lake breeze on the western shore of Lake Michigan was conducted. A real-time version of The Pennsylvania State University�National Center for Atmospheric Research fifth-...
Paul J. Roebber; Mark G. Gehring
Real-Time Loop Scheduling with Energy Optimization Via DVS and ...
Real-Time Loop Scheduling with Energy. Optimization Via DVS and ABB for Multi -core. Embedded System. Guochen Hua1, Meng Wang1, Zili Shao1, Hui Liu2,�...
Experimental measurements and design guidelines for real-time software encryption in multimedia wireless LANs
To secure interactive multimedia applications in wireless LANs (WLANs), it is pertinent to implement real time cryptographic services. In this paper we evaluate the use of software based encryption algorithms that are implemented in the ...
Aura Ganz; Se Hyun Park; Zvi Ganz
Real-time Expression Cloning using Appearance Models Barry-John Theobald
expressions to be transferred and rendered in real-time. 3) The mapped expression can be constrained to have of a complex interaction between various anatomical layers, which include bone, muscle, sub- cutaneous fat
Theobald, Barry-John
Atmospheric Release Advisory Capability: Real-Time Modeling of Airborne Hazardous Materials
The Atmospheric Release Advisory Capability (ARAC) at Lawrence Livermore National Laboratory is a centralized federal project for assessing atmospheric releases of hazardous materials in real time. Since ARAC began making assessments in 1974, the ...
Thomas J. Sullivan; James S. Ellis; Connee S. Foster; Kevin T. Foster; Ronald L. Baskett; John S. Nasstrom; Walter W. Schalk III
Reliability-aware power management for parallel real-time applications with precedence constraints
The negative effects of the Dynamic Voltage and Frequency Scaling (DVFS) technique on the system reliability has recently promoted the research on reliability-aware power management (RAPM). RAPM aims at reducing the system energy consumption while preserving ... Keywords: shared-recovery based scheme, reliability aware power management, parallel real-time application, precedence constraint, dynamic voltage technique, frequency scaling technique, parallel real time application, shared memory multiprocessor system, NP-hard problem, RAPM heuristics, dynamic slack, system reliability
Yifeng Guo; Dakai Zhu; H. Aydin
An Operational Real-Time Ocean Sensor Network in the Gulf of Maine
The Gulf of Maine Ocean Observing System (GoMOOS) was established in the summer of 2001 as a prototype real-time observing system that now includes eleven solar-powered buoys with physical and optical sensors, four shore-based long-range HF radar surface ... Keywords: CODAR, GoMOOS, Gulf of Maine, Ocean Observing Systems, Sensor networks, neural networks, ocean optics, real-time
Neal R. Pettigrew; Collin S. Roesler; Francois Neville; Heather E. Deese
Fine grain pipeline systems for real-time motion and stereo-vision computation
Image processing systems require high computational load that motivates the design of specific hardware architectures in order to arrive at real-time platforms. We adopt innovative design techniques based on the intensive utilisation of the inherent ... Keywords: FPGAs, algorithm parallelisation, cognitive vision models, customised architectures, data flow architectures, field programmable gate arrays, fine-grain pipelining, high performance architectures, image processing, on-chip integration, optical flow, pipelined techniques, real-time motion, reconfigurable hardware, stereo vision, superscalar units
Javier Diaz; Eduardo Ros; Alberto Prieto; Francisco J. Pelayo
Real-Time Per-Cycle Energy Consumption Measurement of Digital Systems
This technical report introduces a real-time per-clock-cycle energy measurement technique for power analysis and reduction of synchronous state machines. This technique guarantees accuracy with a sampling rate of twice the clock frequency under spiky current draw common in digital systems. In addition, it acquires the energy consumption profile in real-time, thus, not requiring repeated operation of the target system.
Naehyuck Chang; Kwanho Kim
An abductive expert system for interpretation of real-time data
This paper describes DINT, a data interpretation expert system which can provide an explanation of the real-time operating state of a substation to its operators. DINT is based on a generalized version of the set covering model for diagnostic problem solving. This abductive reasoning model is an object-based, frame-like knowledge representation paradigm. Test cases illustrate the application of the model to the real-time operation of a substation.
Dabbaghchi, I.; Gursky, R.J. (American Electric Power Service Corp., Columbus, OH (United States))
Real-time observation of fluctuations at the driven-dissipative Dicke phase transition
We experimentally study the influence of dissipation on the driven Dicke quantum phase transition, realized by coupling external degrees of freedom of a Bose-Einstein condensate to the light field of a high-finesse optical cavity. The cavity provides a natural dissipation channel, which gives rise to vacuum-induced fluctuations and allows us to observe density fluctuations of the gas in real-time. We monitor the divergence of these fluctuations over two orders of magnitude while approaching the phase transition and observe a behavior which significantly deviates from that expected for a closed system. A correlation analysis of the fluctuations reveals the diverging time scale of the atomic dynamics and allows us to extract a damping rate for the external degree of freedom of the atoms. We find good agreement with our theoretical model including both dissipation via the cavity field and via the atomic field. Utilizing a dissipation channel to non-destructively gain information about a quantum many-body system provides a unique path to study the physics of driven-dissipative systems.
Ferdinand Brennecke; Rafael Mottl; Kristian Baumann; Renate Landig; Tobias Donner; Tilman Esslinger
Resource Reclaiming in Hard Real-Time Systems with Static and Dynamic Workloads
This paper addresses resource reclaiming in the context of non-preemptive priority list scheduling for hard real-time systems. Such scheduling is inherently susceptible to multiprocessor timing anomalies. We present low overhead run-time stabilization methods for a general tasking model that allows phantom tasks as a mechanism to model processor external events. A family of scheduling algorithms is de?ned, that guarantees run-time stabilization for systems consisting of tasks with hard and soft deadlines. The later, i.e. soft tasks, may arrive dynamically. Stabilization is addressed in the context of dynamic and static task to processor allocation. Previous stabilization methods, focused on apriori stabilization for static workloads with dynamic task to processor allocation, thus cannot support this general scheduling model. By taking advantage of run-time information, the stabilization algorithms use the scan-window approach to prevent instability from occurring. Mechanisms are introduced that explicitly control the run-time behavior of tasks with hard deadlines. As a consequence, processor resources become available that can be used to improve processor utilization and response time of soft tasks. The resulting scan algorithms are intended for real world applications where low run-time overhead and a realistic task model are needed. 1
A. W. Krings; M. H. Azadmanesh
Real time reciprocal space mapping of nano-islands induced by quantum confinment.
The effects of quantum confinement have been observed pronouncedly in the island morphology of Pb thin films. The evolution of these nano-islands on Si (111)-(7 x 7) and sapphire (001) surfaces has been studied with a new X-ray diffraction method. A charge-coupled device (CCD) camera was used to collect two- and three-dimensional (2-D and 3-D, respectively) maps of the surface X-ray diffraction in real time. Large ranges of the reflectivity curves, with rocking curves at every point on the reflectivity curves, could be measured continuously in a relatively short amount of time. The abundance of information from 2-D k-space maps reveals clear changes in the growth modes of these thin Pb films. With the 3-D extension of this method, it was possible to observe the ordering of the islands. The islands maintain a nearly uniform interisland distance but lack any angular correlation. The interisland ordering is correlated well with the development of 'magic' island heights caused by quantum confinement.
Hong, H.; Gray, A.; Chiang, T. C. (X-Ray Science Division); ( PSC-USR); (Univ. of Illinois)
Environment modeling with UML/MARTE to support black-box system testing for real-time embedded systems: methodology and industrial case studies
The behavior of real-time embedded systems (RTES) is driven by their environment. Independent system test teams normally focus on black-box testing as they have typically no easy access to precise design information. Black-box testing in this context ...
Muhammad Zohaib Iqbal; Andrea Arcuri; Lionel Briand
Real-time PCR quantification of human adenoviruses in urban rivers indicates genome prevalence but low infectivity
integrated cell culture-nested PCR procedure, p. 547. Abstr.samples by real-time PCR. Appl. Environ. Microbiol. 71:2250�Real time quantitative PCR for enteric adenovirus serotype
Choi, S; Jiang, Sunny C
A real-time self-tuning fuzzy controller through scaling factor adjustment for the steam generator of NPP
Keywords: fuzzy controller, instantaneous system performance, real-time, scaling factor, self-tuning, steam generator, variable reference tuning index
Chul-Hwan Jung; Chang-Shik Ham; Kuhn-Il Lee
Fish in electrical storms
Fish in electrical storms Name: Kelly A Krugeger Age: NA Location: NA Country: NA Date: NA Question: I have always been told to stay out of water during an electrical storm...
Real-time Building Energy Simulation using EnergyPlus and the Building
Real-time Building Energy Simulation using EnergyPlus and the Building Real-time Building Energy Simulation using EnergyPlus and the Building Controls Virtual Test Bed Title Real-time Building Energy Simulation using EnergyPlus and the Building Controls Virtual Test Bed Publication Type Conference Proceedings LBNL Report Number LBNL-5390E Year of Publication 2011 Authors Pang, Xiufeng, Prajesh Bhattacharya, Zheng O'Neill, Philip Haves, Michael Wetter, and Trevor Bailey Conference Name Proc. of the 12th IBPSA Conference Pagination p. 2890-2896 Date Published 11/2011 Conference Location Sydney, Australia Abstract Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures (Haves et al., 2001, Lee et al., 2007). To address this problem, the paper presents a simulation-based whole building performance monitoring tool that allows a comparison of building actual performance and expected performance in real time. The tool continuously acquires relevant building model input variables from existing Energy Management and Control System (EMCS). It then reports expected energy consumption as simulated of EnergyPlus. The Building Control Virtual Test Bed (BCVTB) is used as the software platform to provide data linkage between the EMCS, an EnergyPlus model, and a database. This paper describes the integrated real-time simulation environment. A proof-of-concept demonstration is also presented in the paper.
Towards Real-Time High Performance Computing For Power Grid Analysis
Real-time computing has traditionally been considered largely in the context of single-processor and embedded systems, and indeed, the terms real-time computing, embedded systems, and control systems are often mentioned in closely related contexts. However, real-time computing in the context of multinode systems, specifically high-performance, cluster-computing systems, remains relatively unexplored. Imposing real-time constraints on a parallel (cluster) computing environment introduces a variety of challenges with respect to the formal verification of the system's timing properties. In this paper, we give a motivating example to demonstrate the need for such a system--- an application to estimate the electromechanical states of the power grid--- and we introduce a formal method for performing verification of certain temporal properties within a system of parallel processes. We describe our work towards a full real-time implementation of the target application--- namely, our progress towards extracting a key mathematical kernel from the application, the formal process by which we analyze the intricate timing behavior of the processes on the cluster, as well as timing measurements taken on our test cluster to demonstrate use of these concepts.
Hui, Peter SY; Lee, Barry; Chikkagoudar, Satish
DOE REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES | Open
REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: DOE REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES Details Activities (6) Areas (6) Regions (0) Abstract: Lawrence Berkeley National Laboratory (LBNL) at the direction of the United States Department of Energy (DOE) Geothermal Technologies EGS Program is installing, operating, and/or interfacing seismic arrays at multiple Enhanced Geothermal Systems (EGS) sites. The overall goal is to gather high resolution seismicity data before, during and after stimulation activities at the EGS projects. This will include both surface and borehole deployments (as necessary in available boreholes) to provide high quality
Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and
09.03.10] -- Innovative Silicon Wafers, Real-Time Power 09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers September 3, 2010 - 12:38pm Addthis A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public
ME EET Seminar: Real-time Predictive Control: From Automotive Systems to
Real-time Predictive Control: From Automotive Systems to Real-time Predictive Control: From Automotive Systems to Energy Efficient Buildings Speaker(s): Francesco Borrelli Date: February 10, 2010 - 12:00pm Location: 90-3122 Hybrid systems are heterogeneous systems that exhibit both continuous and discrete dynamics. Over the last eight years we have focused on the development of systematic, real-time, predictive controller synthesis techniques for hybrid systems with constraints. In this talk I will first summarize our theoretical efforts starting from constrained optimal control design for hybrid systems with constraints. Then, I will show how these results can be used in order to develop a theory for distributed predictive control for large-scale systems. The second part of the talk presents a range of applications where the proposed techniques were used with great
Real-Time Power Control of Data Centers for Providing Regulation Service
Real-Time Power Control of Data Centers for Providing Regulation Service Real-Time Power Control of Data Centers for Providing Regulation Service Speaker(s): Ayse K. Coskun Date: November 19, 2013 - 12:00pm - 1:00pm Location: 90-3122 Seminar Host/Point of Contact: Girish Ghatikar Today's US power markets offer new opportunities for the energy consumers to reduce their energy costs by first promising an average consumption rate for the next hour and then by following a regulation signal broadcast by the independent system operators (ISOs), who need to match supply and demand in real time in presence of volatile and intermittent renewable energy generation. This talk proposes a management framework for the data centers to participate in the power markets. First, I will discuss how to solve the data center "regulation service (RS)" optimization problem to
Dynamic Scheduling of Skippable Periodic Tasks with Energy Efficiency in Weakly Hard Real-Time System
Energy consumption is a critical design issue in real-time systems, especially in battery- operated systems. Maintaining high performance, while extending the battery life between charges is an interesting challenge for system designers. Dynamic Voltage Scaling (DVS) allows a processor to dynamically change speed and voltage at run time, thereby saving energy by spreading run cycles into idle time. Knowing when to use full power and when not, requires the cooperation of the operating system scheduler. Usually, higher processor voltage and frequency leads to higher system throughput while energy reduction can be obtained using lower voltage and frequency. Instead of lowering processor voltage and frequency as much as possible, energy efficient real-time scheduling adjusts voltage and frequency according to some optimization criteria, such as low energy consumption or high throughput, while it meets the timing constraints of the real-time tasks. As the quantity and functional complexity of battery powered porta...
Baskaran, Santhi
Real-Time Middleware Concepts for Automating the Development of Distributed Embedded Control Systems
Developing distributed hard real-time applications is a complex endeavor. This paper presents two orthogonal and complementary approaches and their integration --- Giotto and the AOCS framework. Each of these approaches by itself leads to significant efficiency gains in the development of the software for embedded control systems. Giotto allows the high-level, platform independent specification of the timing behavior of possibly distributed embedded control applications with hard real-time requirements. It represents an innovative middleware concept for this category of applications which strictly separates platform-independent functionality and timing concerns from platform-dependent scheduling and communication issues. Giotto leaves open how the functionality of an application is implemented. Ideally, this should be done by reusing components 1 targeted at real-time control systems. In this spirit, the AOCS framework 2 project defines and implements a set of reusable object-orien...
T.B. Brown; T.A. Henzinger; C.M. Kirsch; A. Pasetti; W. Pree
Real-time MSE measurements for current profile control on KSTAR
To step up from current day fusion experiments to power producing fusion reactors, it is necessary to control long pulse, burning plasmas. Stability and confinement properties of tokamak fusion reactors are determined by the current or q profile. In order to control the q profile, it is necessary to measure it in real-time. A real-time motional Stark effect diagnostic is being developed at Korean Superconducting Tokamak for Advanced Research for this purpose. This paper focuses on 3 topics important for real-time measurements: minimize the use of ad hoc parameters, minimize external influences and a robust and fast analysis algorithm. Specifically, we have looked into extracting the retardance of the photo-elastic modulators from the signal itself, minimizing the influence of overlapping beam spectra by optimizing the optical filter design and a multi-channel, multiharmonic phase locking algorithm.
De Bock, M. F. M.; Aussems, D.; Huijgen, R.; Scheffer, M. [Eindhoven University of Technology, Eindhoven (Netherlands); Chung, J. [National Fusion Research Institute, Daejeon (Korea, Republic of)
Runtime Monitoring of Timing Constraints in Distributed Real-Time Systems
. Embedded real-time systems often operate under strict timing and dependability constraints. To ensure responsiveness, these systems must be able to provide the expected services in a timely manner even in the presence of faults. In this paper, we describe a run-time environment for monitoring of timing constraints in distributed real-time systems. In particular, we focus on the problem of detecting violations of timing assertions in an environment in which the real-time tasks run on multiple processors, and timing constraints can be either inter-processor or intra-processor constraints. Constraint violations are detected at the earliest possible time by deriving and checking intermediate constraints from the user-specified constraints. If the violations must be detected as early as possible, then the problem of minimizing the number of messages to be exchanged between the processors becomes intractable. We characterize a sub-class of timing constraints that occur commonly in distribu...
Farnam Jahanian; Ragunathan Rajkumar; Sitaram C. V. Raju
Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers September 3, 2010 - 12:38pm Addthis A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public
A framework for simulation-based real-time whole building performance
A framework for simulation-based real-time whole building performance A framework for simulation-based real-time whole building performance assessment Title A framework for simulation-based real-time whole building performance assessment Publication Type Journal Article Refereed Designation Unknown LBNL Report Number 0360-1323 Year of Publication 2012 Authors Pang, Xiufeng, Michael Wetter, Prajesh Bhattacharya, and Philip Haves Journal Building and Environment Volume 54 Start Page 100 Pagination 100-108 Date Published 08/2012 ISSN 0360-1323 Keywords building controls virtual test bed, building performance, energy modeling, energyplus, real-time building simulation Abstract Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures. One approach to addressing this problems is to compare the predictions of an energy simulation model of the building to the measured performance and analyze significant differences to infer the presence and location of faults. This paper presents a framework that allows a comparison of building actual performance and expected performance in real time. The realization of the framework utilized the EnergyPlus, the Building Controls Virtual Test Bed (BCVTB) and the Energy Management and Control System (EMCS) was developed. An EnergyPlus model that represents expected performance of a building runs in real time and reports the predicted building performance at each time step. The BCVTB is used as the software platform to acquire relevant inputs from the EMCS through a BACnet interface and send them to the EnergyPlus and to a database for archiving. A proof-of-concept demonstration is also presented.
California ISO Real-Time Voltage Security Assessment (VSA) Summary Report
Real-Time Real-Time Voltage Security Assessment (VSA) Summary Report Prepared For: California Energy Commission Public Interest Energy Research Program Prepared By: Lawrence Berkeley National Laboratory Consortium for Electric Reliability Technology Solutions APPENDIX B October 2008 CEC-500-2008-049-APB Prepared By: Lawrence Berkeley National Laboratory Joe Eto, Manu Parashar, Bernard Lesieutre, and Nancy Jo Lewis Berkeley, CA Administered by University of California, California Institute for Energy and Environment under 500-99-013, BOA-138. Jim Cole, Larry Miller Oakland, California 94612 Commission Contract No. 500-02-004 Commission Work Authorization No: MR-036 Prepared For: Public Interest Energy Research (PIER) California Energy Commission
State-of-the-art of near-real-time materials accounting
Near-real-time accounting is being pursued as a method for improving the timeliness and diversion detection sensitivity of conventional accounting procedures. Acceptability of near-real-time accounting for international safeguards depends on: Development of measurement techniques that provide the required sensitivity and timeliness, proper consideration of measurement control programs, development of statistical techniques to evaluate measurement data, demonstration that the materials accounting results can be verified independently by the Agency, and demonstration of the safeguards system under operational plant conditions. Each of these areas is discussed in the paper.
Shipley, J.P.; Hakkila, E.A.
Radiological Monitoring Equipment For Real-Time Quantification Of Area Contamination In Soils And Facility Decommissioning
The environmental restoration industry offers several sys�tems that perform scan-type characterization of radiologically contaminated areas. The Idaho National Laboratory (INL) has developed and deployed a suite of field systems that rapidly scan, characterize, and analyse radiological contamination in surface soils. The base system consists of a detector, such as sodium iodide (NaI) spectrometers, a global positioning system (GPS), and an integrated user-friendly computer interface. This mobile concept was initially developed to provide precertifica�tion analyses of soils contaminated with uranium, thorium, and radium at the Fernald Closure Project, near Cincinnati, Ohio. INL has expanded the functionality of this basic system to create a suite of integrated field-deployable analytical systems. Using its engineering and radiation measurement expertise, aided by computer hardware and software support, INL has streamlined the data acquisition and analysis process to provide real-time information presented on wireless screens and in the form of coverage maps immediately available to field technicians. In addition, custom software offers a user-friendly interface with user-selectable alarm levels and automated data quality monitoring functions that validate the data. This system is deployed from various platforms, depending on the nature of the survey. The deployment platforms include a small all-terrain vehicle used to survey large, relatively flat areas, a hand-pushed unit for areas where manoeuvrability is important, an excavator-mounted system used to scan pits and trenches where personnel access is restricted, and backpack- mounted systems to survey rocky shoreline features and other physical settings that preclude vehicle-based deployment. Variants of the base system include sealed proportional counters for measuring actinides (i.e., plutonium-238 and americium-241) in building demolitions, soil areas, roadbeds, and process line routes at the Miamisburg Closure Project near Dayton, Ohio. In addition, INL supports decontamination operations at the Oak Ridge National Laboratory.
M. V. Carpenter; Jay A. Roach; John R Giles; Lyle G. Roybal
A Comprehensive Statistically-Based Method to Interpret Real-Time Flowing Measurements
This project is motivated by the increasing use of distributed temperature sensors for real-time monitoring of complex wells (horizontal, multilateral and multi-branching wells) to infer the profiles of oil, gas, and water entry. Measured information can be used to interpret flow profiles along the wellbore including junction and build section. In this second project year, we have completed a forward model to predict temperature and pressure profiles in complex wells. As a comprehensive temperature model, we have developed an analytical reservoir flow model which takes into account Joule-Thomson effects in the near well vicinity and multiphase non-isothermal producing wellbore model, and couples those models accounting mass and heat transfer between them. For further inferences such as water coning or gas evaporation, we will need a numerical non-isothermal reservoir simulator, and unlike existing (thermal recovery, geothermal) simulators, it should capture subtle temperature change occurring in a normal production. We will show the results from the analytical coupled model (analytical reservoir solution coupled with numerical multi-segment well model) to infer the anomalous temperature or pressure profiles under various conditions, and the preliminary results from the numerical coupled reservoir model which solves full matrix including wellbore grids. We applied Ramey's model to the build section and used an enthalpy balance to infer the temperature profile at the junction. The multilateral wellbore temperature model was applied to a wide range of cases varying fluid thermal properties, absolute values of temperature and pressure, geothermal gradients, flow rates from each lateral, and the trajectories of each build section.
Pinan Dawkrajai; Keita Yoshioka; Analis A. Romero; Ding Zhu; A.D. Hill; Larry W. Lake
Real-time characterization of partially observed epidemics using surrogate models.
We present a statistical method, predicated on the use of surrogate models, for the 'real-time' characterization of partially observed epidemics. Observations consist of counts of symptomatic patients, diagnosed with the disease, that may be available in the early epoch of an ongoing outbreak. Characterization, in this context, refers to estimation of epidemiological parameters that can be used to provide short-term forecasts of the ongoing epidemic, as well as to provide gross information on the dynamics of the etiologic agent in the affected population e.g., the time-dependent infection rate. The characterization problem is formulated as a Bayesian inverse problem, and epidemiological parameters are estimated as distributions using a Markov chain Monte Carlo (MCMC) method, thus quantifying the uncertainty in the estimates. In some cases, the inverse problem can be computationally expensive, primarily due to the epidemic simulator used inside the inversion algorithm. We present a method, based on replacing the epidemiological model with computationally inexpensive surrogates, that can reduce the computational time to minutes, without a significant loss of accuracy. The surrogates are created by projecting the output of an epidemiological model on a set of polynomial chaos bases; thereafter, computations involving the surrogate model reduce to evaluations of a polynomial. We find that the epidemic characterizations obtained with the surrogate models is very close to that obtained with the original model. We also find that the number of projections required to construct a surrogate model is O(10)-O(10{sup 2}) less than the number of samples required by the MCMC to construct a stationary posterior distribution; thus, depending upon the epidemiological models in question, it may be possible to omit the offline creation and caching of surrogate models, prior to their use in an inverse problem. The technique is demonstrated on synthetic data as well as observations from the 1918 influenza pandemic collected at Camp Custer, Michigan.
Safta, Cosmin; Ray, Jaideep; Lefantzi, Sophia; Crary, David (Applied Research Associates, Arlington, VA); Sargsyan, Khachik; Cheng, Karen (Applied Research Associates, Arlington, VA)
Value of Probabilistic Weather Forecasts: Assessment by Real-Time Optimization of Irrigation Scheduling
This paper presents a modeling framework for real-time decision support for irrigation scheduling using the National Oceanic and Atmospheric Administration's (NOAA's) probabilistic rainfall forecasts. The forecasts and their probability distributions are incorporated into a simulation-optimization modeling framework. In this study, modeling irrigation is determined by a stochastic optimization program based on the simulated soil moisture and crop water-stress status and the forecasted rainfall for the next 1-7 days. The modeling framework is applied to irrigated corn in Mason County, Illinois. It is found that there is ample potential to improve current farmers practices by simply using the proposed simulation-optimization framework, which uses the present soil moisture and crop evapotranspiration information even without any forecasts. It is found that the values of the forecasts vary across dry, normal, and wet years. More significant economic gains are found in normal and wet years than in dry years under the various forecast horizons. To mitigate drought effect on crop yield through irrigation, medium- or long-term climate predictions likely play a more important role than short-term forecasts. NOAA's imperfect 1-week forecast is still valuable in terms of both profit gain and water saving. Compared with the no-rain forecast case, the short-term imperfect forecasts could lead to additional 2.4-8.5% gain in profit and 11.0-26.9% water saving. However, the performance of the imperfect forecast is only slightly better than the ensemble weather forecast based on historical data and slightly inferior to the perfect forecast. It seems that the 1-week forecast horizon is too limited to evaluate the role of the various forecast scenarios for irrigation scheduling, which is actually a seasonal decision issue. For irrigation scheduling, both the forecast quality and the length of forecast time horizon matter. Thus, longer forecasts might be necessary to evaluate the role of forecasts for irrigation scheduling in a more effective way.
Cai, Ximing; Hejazi, Mohamad I.; Wang, Dingbao
Utilities weather the storm
Utilities must restore power to storm-damaged transmission and distribution systems, even if it means going out in ice storms or during lightning and hurricane conditions. Weather forecasting helps utilities plan for possible damage as well as alerting them to long-term trends. Storm planning includes having trained repair personnel available and adjusting the system so that less power imports are needed. Storm damage response requires teamwork and cooperation between utilities. Utilities can strengthen equipment in storm-prone or vulnerable areas, but good data are necessary to document the incidence of lighning strikes, hurricanes, etc. 2 references, 8 figures.
Lihach, N.
Estimating forest structural characteristics with airborne lidar scanning and a near-real time profiling laser systems
LiDAR (Light Detection and Ranging) directly measures canopy vertical structures, and provides an effective remote sensing solution to accurate and spatiallyexplicit mapping of forest characteristics, such as canopy height and Leaf Area Index. However, many factors, such as large data volume and high costs for data acquisition, precludes the operational and practical use of most currently available LiDARs for frequent and large-scale mapping. At the same time, a growing need is arising for realtime remote sensing platforms, e.g., to provide timely information for urgent applications. This study aims to develop an airborne profiling LiDAR system, featured with on-the-fly data processing, for near real- or real- time forest inventory. The development of such a system involves implementing the on-board data processing and analysis as well as building useful regression-based models to relate LiDAR measurements with forest biophysical parameters. This work established a paradigm for an on-the-fly airborne profiling LiDAR system to inventory regional forest resources in real- or near real- time. The system was developed based on an existing portable airborne laser system (PALS) that has been previously assembled at NASA by Dr. Ross Nelson. Key issues in automating PALS as an on-the-fly system were addressed, including the design of an archetype for the system workflow, the development of efficient and robust algorithms for automatic data processing and analysis, the development of effective regression models to predict forest biophysical parameters from LiDAR measurements, and the implementation of an integrated software package to incorporate all the above development. This work exploited the untouched potential of airborne laser profilers for realtime forest inventory, and therefore, documented an initial step toward developing airborne-laser-based, on-the-fly, real-time, forest inventory systems. Results from this work demonstrated the utility and effectiveness of airborne scanning or profiling laser systems for remotely measuring various forest structural attributes at a range of scales, i.e., from individual tree, plot, stand and up to regional levels. The system not only provides a regional assessment tool, one that can be used to repeatedly, remotely measure hundreds or thousands of square kilometers with little/no analyst interaction or interpretation, but also serves as a paradigm for future efforts in building more advanced airborne laser systems such as real-time laser scanners.
Zhao, Kaiguang
An Evaluation of the Darwin Area Forecast Experiment Storm Occurrence Forecasts
Results from real-time forecasting the occurrence of storm activity during �break� and �transition� season flow within two 10-km-radius circles for periods up to 3 h in the tropics near Darwin, Australia (12�S, 131�E), are described. The ...
T. Keenan; R. Potts; T. Stevenson
Puget Sound Operational Forecast System - A Real-time Predictive Tool for Marine Resource Management and Emergency Responses
To support marine ecological resource management and emergency response and to enhance scientific understanding of physical and biogeochemical processes in Puget Sound, a real-time Puget Sound Operational Forecast System (PS-OFS) was developed by the Coastal Ocean Dynamics & Ecosystem Modeling group (CODEM) of Pacific Northwest National Laboratory (PNNL). PS-OFS employs the state-of-the-art three-dimensional coastal ocean model and closely follows the standards and procedures established by National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS). PS-OFS consists of four key components supporting the Puget Sound Circulation and Transport Model (PS-CTM): data acquisition, model execution and product archive, model skill assessment, and model results dissemination. This paper provides an overview of PS-OFS and its ability to provide vital real-time oceanographic information to the Puget Sound community. PS-OFS supports pacific northwest region�s growing need for a predictive tool to assist water quality management, fish stock recovery efforts, maritime emergency response, nearshore land-use planning, and the challenge of climate change and sea level rise impacts. The structure of PS-OFS and examples of the system inputs and outputs, forecast results are presented in details.
Yang, Zhaoqing; Khangaonkar, Tarang; Chase, Jared M.; Wang, Taiping
Real-Time Gene Expression Profiling of Live Shewanella Oneidensis Cells
The overall objective of this proposal is to make real-time observations of gene expression in live Shewanella oneidensis cells with high sensitivity and high throughput. Gene expression, a central process to all life, is stochastic because most genes often exist in one or two copies per cell. Although the central dogma of molecular biology has been proven beyond doubt, due to insufficient sensitivity, stochastic protein production has not been visualized in real time in an individual cell at the single-molecule level. We report the first direct observation of single protein molecules as they are generated, one at a time in a single live E. coli cell, yielding quantitative information about gene expression [Science 2006; 311: 1600-1603]. We demonstrated a general strategy for live-cell single-molecule measurements: detection by localization. It is difficult to detect single fluorescence protein molecules inside cytoplasm - their fluorescence is spread by fast diffusion to the entire cell and overwhelmed by the strong autofluorescence. We achieved single-molecule sensitivity by immobilizing the fluorescence protein on the cell membrane, where the diffusion is much slowed. We learned that under the repressed condition protein molecules are produced in bursts, with each burst originating from a stochastically-transcribed single messenger RNA molecule, and that protein copy numbers in the bursts follow a geometric distribution. We also simultaneously published a paper reporting a different method using ?-glactosidase as a reporter [Nature 440, 358 (2006)]. Many important proteins are expressed at low levels, inaccessible by previous proteomic techniques. Both papers allowed quantification of protein expression with unprecedented sensitivity and received overwhelming acclaim from the scientific community. The Nature paper has been identified as one of the most-cited papers in the past year [http://esi-topics.com/]. We have also an analytical framework describing the steady-state distribution of protein concentration in live cells, considering that protein production occurs in random bursts with an exponentially distributed number of molecules. This model allows for the extraction of kinetic parameters of gene expression from steady-state distributions of protein concentration in a cell population, which are available from single cell data obtained by fluorescence microscopy. [Phys. Rev. Lett. 97, 168302 (2006)]. A major objective in the Genome to Life (GtL) program is to monitor and understand the gene expression profile of a complete bacterial genome. We developed genetic and imaging methods for sensitive protein expression profiling in individual S. oneidensis cell. We have made good progress in constructing YFP-library with several hundred chromosomal fusion proteins and studied protein expression profiling in living Shewanella oneidensis cells. Fluorescence microscopy revealed the average abundance of specific proteins, as well as their noise in gene expression level across a population. We also explored ways to adapt our fluorescence measurement for other growth conditions, such as anaerobic growth.
Xiaoliang Sunney Xie
Filter loading corrections for real-time aethalometer measurements of fresh
Filter loading corrections for real-time aethalometer measurements of fresh Filter loading corrections for real-time aethalometer measurements of fresh diesel soot. (2007) Title Filter loading corrections for real-time aethalometer measurements of fresh diesel soot. (2007) Publication Type Journal Article Year of Publication 2007 Authors Jimenez, Jorge, Candis S. Claiborn, Timothy Larson, Thomas W. Kirchstetter, and Lara A. Gundel Journal Journal of Air and Waste Management Association Volume 57 Issue 7 Pagination 868-873 Abstract In this study, a correction was developed for the aethalometer to measure real-time black carbon (BC) concentrations in an environment dominated by fresh diesel soot. The relationship between the actual mass-specific absorption coefficient for BC and the BC-dependent attenuation coefficients was determined from experiments conducted in a diesel exposure chamber that provided constant concentrations of fine particulate matter (PM; PM(2.5); PM < 2.5 microm in aerodynamic diameter) from diesel exhaust. The aethalometer reported BC concentrations decreasing with time from 48.1 to 31.5 microg m(-3) when exposed to constant PM(2.5) concentrations of 55 +/- 1 microg m(-3) and b(scat) = 95 +/- 3 Mm(-1) from diesel exhaust. This apparent decrease in reported light-absorbing PM concentration was used to derive a correction K(ATN) for loading of strong light-absorbing particles onto or into the aethalometer filter tape, which was a function of attenuation of light at 880 nm by the embedded particles
TOGA-TAO: A Moored Array for Real-time Measurements in the Tropical Pacific Ocean
The importance of the El Ni�o-Southern Oscillation phenomenon in year-to-year fluctuations of the global climate has led to efforts to improve the real-time ocean observing system in the tropical Pacific. One element of this improved system is ...
S. P. Hayes; L. J. Mangum; J. Picaut; A. Sumi; K. Takeuchi
Monitoring of Power System Topology in Real-Time Mladen Kezunovic
components such as generators, power transformers, transmission lines, loads, etc. The knowledge about components such as generators, power transformers, busbars, transmission lines and loads. The interconnectedMonitoring of Power System Topology in Real-Time Mladen Kezunovic Texas A&M University Email
Field Test to Demonstrate Real-Time In-Situ Detection of Volatile Organic Compounds
1 Field Test to Demonstrate Real-Time In-Situ Detection of Volatile Organic Compounds Hazmat Spill Center, Nevada Test Site September 19-25, 2001 Clifford K. Ho Sandia National Laboratories Albuquerque-filled 55- gallon drum at the Hazmat Spill Center at the Nevada Test Site. Background and Objectives Tens
Ho, Cliff
Real-Time Human Posture Reconstruction in Wireless Smart Camera Networks
While providing a variety of intriguing application opportunities, a vision sensor network poses three key challenges. High computation capacity is required for early vision functions to enable real-time performance. Wireless links limit image transmission ... Keywords: smart cameras, embedded vision systems, human posture estimation
Chen Wu; Hamid Aghajan; Richard Kleihorst
Miniaturized CMOS Imaging Module with Real-time DSP Technology for Endoscope and Laryngoscope Applications
Miniaturized video camera is a key component in modern medical devices such as endoscopes or other minimally invasive instruments. Here we present a new imaging module which is so small that it can fit through the instrument channels of conventional ... Keywords: Blackfin DSP, CMOS imaging module, Miniature, Minimally invasive instruments, Real-time video processing
Liqiang Wang; Yan Shi; Zukang Lu; Huilong Duan
Multimodal analysis of body sensor network data streams for real-time healthcare
Fundamental advances in low power circuits, wireless communication, physiological sensor design, and multimedia stream processing, have led to the deployment of body sensor networks for the real-time monitoring of individual health in diverse settings. ... Keywords: body sensor networks, multi-modal analysis, sensor networks, systems and communications
Manoj K. Garg; Duk-Jin Kim; Deepak S. Turaga; Balakrishnan Prabhakaran
Enhancing Security of Real-Time Applications on Grids through Dynamic Scheduling
advances in processing power, network bandwidth, and storage capacity, Grids are emerging as next [38], and distributed medical data systems [20]. On-line transaction processing systems are examplesEnhancing Security of Real-Time Applications on Grids through Dynamic Scheduling Tao Xie Xiao Qin
Feitelson, Dror
A Real-Time, Hierarchical, Sensor-Based Robotic System Architecture
A robotic system architecture is presented and its real-time performance, when used to control a robotic gripper system for deformation-free handling of limp material, is evaluated. A major problem to be overcome has been the integrability and compatibility ... Keywords: compatibility, hierarchical control, sensor-based control, system architecture, system integration
Timothy Hebert; Kimon Valavanis; Ramesh Kolluru
Stochastic search versus genetic algorithms for solving real time and over-constrained temporal constraint problems
The aim of this work is to study the applicability of Genetic Algorithms (GAs) and stochastic local search methods to solve real time and over constrained temporal constraint problems. Solving these two type of problems consists of finding a possible ... Keywords: constraint satisfaction, genetic algorithms, local search, temporal reasoning
Malek Mouhoub
Machining force regression models and real time control when turning MET 4 metallized coating
Due to their wide range of application, metallized coatings are widely used in industry, both for wear resistance or corrosion protection. In order to obtain the required geometric precision, machining these coatings is many times required. As their ... Keywords: control system, experiments design, force, metallized coating, real time, regression, turning
Mihaiela Iliescu; Luigi Vl?d?reanu; Marius Soceanu
Runtime architecture adaptation for energy management in embedded real-time systems
Energy consumption has long been recognized as an important performance metric for many real-time and embedded systems. The traditional approach to energy-aware computing is to dynamically scale the voltage: this results in a significant drop in the ...
H. Wang; I. Koren; C. M. Krishna
Adaptive energy-efficient scheduling for real-time tasks on DVS-enabled heterogeneous clusters
Developing energy-efficient clusters not only can reduce power electricity cost but also can improve system reliability. Existing scheduling strategies developed for energy-efficient clusters conserve energy at the cost of performance. The performance ... Keywords: Adaptivity, Cluster, Dynamic voltage scaling, Energy-efficient, Real-time, Scheduling
Xiaomin Zhu; Chuan He; Kenli Li; Xiao Qin
Fast candidate generation for real-time tweet search with bloom filter chains
The rise of social media and other forms of user-generated content have created the demand for real-time search: against a high-velocity stream of incoming documents, users desire a list of relevant results at the time the query is issued. In the context ... Keywords: Scalability, bloom filters, efficiency, top-k retrieval, tweet search
Nima Asadi; Jimmy Lin
Real-time automatic interpolation of ambient gamma dose rates from the Dutch radioactivity monitoring network
Detection of radiological accidents and monitoring the spread of the contamination is of great importance. Following the Chernobyl accident many European countries have installed monitoring networks to perform this task. Real-time availability of automatically ... Keywords: Automatic interpolation, Interoperability, Kriging, Monitoring networks, Web services
Paul H. Hiemstra; Edzer J. Pebesma; Chris J. W. Twenh�fel; Gerard B. M. Heuvelink
Accurate Modeling and Prediction of Energy Availability in Energy Harvesting Real-Time Embedded Systems
on the type of energy harvesting technology, ECM1 can be either DC/DC or AC/DC converter. ECM2 is usually a DC/DCAccurate Modeling and Prediction of Energy Availability in Energy Harvesting Real-Time firstname.lastname@example.com Abstract -- Energy availability is the primary subject that drives the research innovations in energy
Qiu, Qinru
Real-Time Wind Turbine Emulator Suitable for Power Quality and Dynamic Control Studies
1 Real-Time Wind Turbine Emulator Suitable for Power Quality and Dynamic Control Studies Dale S. L. Dolan, Student Member, IEEE, P. W. Lehn, Member IEEE Abstract-- Wind turbines are increasingly becoming-time Wind Turbine Emulator, which emulates the dynamic torque produced by an actual turbine has been
Lehn, Peter W.
Fuzzy coordinated PI controller: application to the real-time pressure control process
This paper presents the real-time implementation of a fuzzy coordinated classical PI control scheme for controlling the pressure in a pilot pressure tank system. The fuzzy system has been designed to track the variation parameters in a feedback loop ...
N. Kanagaraj; P. Sivashanmugam; S. Paramasivam
A virtual sensor system for user-generated, real-time environmental data products
With the advent of new instrumentation and sensors, more diverse types and increasing amounts of data are becoming available to environmental researchers and practitioners. However, accessing and integrating these data into forms usable for environmental ... Keywords: Collaborative technology, Cyberinfrastructure, Data integration, Environmental sensors, NEXRAD, Real-time sensing, Virtual sensor, Workflow
David J. Hill; Yong Liu; Luigi Marini; Rob Kooper; Alejandro Rodriguez; Joe Futrelle; Barbara S. Minsker; James Myers; Terry McLaren
A real-time scheduling framework for embedded systems with environmental energy harvesting
Real-time scheduling refers to the problem in which there is a deadline associated with the execution of a task. In this paper, we address the scheduling problem for a uniprocessor platform that is powered by a renewable energy storage unit and uses ...
Hussein EL Ghor; Maryline Chetto; Rafic Hage Chehade
Real-time deferrable load control: handling the uncertainties of renewable generation
Real-time demand response is essential for handling the uncertainties of renewable generation. Traditionally, demand response has been focused on large industrial and commercial loads, however it is expected that a large number of small residential loads ... Keywords: deferrable load control, demand response, model predictive control, smart grid
Lingwen Gan, Adam Wierman, Ufuk Topcu, Niangjun Chen, Steven H. Low
Computational Modeling and Real-Time Control of Patient-Specific Laser Treatment of Cancer
Abstract�An adaptive feedback control system is presented which employs a computational model of bioheat transfer in living tissue to guide, in real-time, laser treatments of prostate cancer monitored by magnetic resonance thermal imaging. The system is built on what can be referred to as cyberinfrastructure�a complex structure of high-speed network, large-scale parallel computing devices, laser optics, imaging, visualizations, inverse-analysis algorithms, mesh generation, and control systems that guide laser therapy to optimally control the ablation of cancerous tissue. The computational system has been successfully tested on in vivo, canine prostate. Over the course of an 18 min laser-induced thermal therapy performed at M.D. Anderson Cancer Center (MDACC) in Houston, Texas, the computational models were calibrated to intra-operative real-time thermal imaging treatment data and the calibrated models controlled the bioheat transfer to within 5 �C of the predetermined treatment plan. The computational arena is in Austin, Texas and managed at the Institute for Computational Engineering and Sciences (ICES). The system is designed to control the bioheat transfer remotely while simultaneously providing real-time remote visualization of the on-going treatment. Post-operative histology of the canine prostate reveal that the damage region was within the targeted 1.2 cm diameter treatment objective. Keywords�Hyperthermia, Real-time computing, Medical imaging, Cancer treatment, Cyberinfrastructure, PDE
unknown authors
Real-Time Dynamic Visual Tracking Using PSD Sensors and Extended Trapezoidal Motion Planning
A real-time visual servo tracking system for an industrial robot has been implemented using PSD (Position Sensitive Detector) cameras, neural networks, and an extended trapezoidal motion planning method. PSD and directly transduces the light�s ... Keywords: extended trapezoidal motion planning, locally activated neural network, position sensitive detectors, target tracking, visual servoing
Soo-Hyuk Nam; Se-Young Oh
Practical on-line dvs scheduling for fixed-priority real-time systems
We present an on-line Dynamic Voltage Scaling (DVS) algorithm for preemptive fixed-priority real-time systems called low power Limited Demand Analysis with Transition overhead (lpLDAT). It is the first algorithm in its class to explicitly account for transition overhead, and can reduce the energy consumption by as much as 40 % when compared to previous methods. 1.
Bren Mochocki; Xiaobo Sharon Hu
Processing, Compression and Transmission of Satellite IR Data for Near-Real-Time Use at Sea
A method for acquisition, processing and analysis of digital, satellite-derived SST fields on a research vessel at sea in near-real-time (within 10 h of the satellite pass) is discussed. Such imagery provides a general view of the SST field over ...
Peter Cornillon; David Evans; Otis B. Brown; Robert Evans; Paul Eden; James Brown
RINSE: The Real-Time Immersive Network Simulation Environment for Network Security Exercises (Extended Version)
The Real-Time Immersive Network Simulation Environment (RINSE) simulator is being developed to support large-scale network security preparedness and training exercises, involving hundreds of players and a modeled network composed of hundreds of local-area ... Keywords: Simulation, emulation, networking, security
Michael Liljenstam; Jason Liu; David M. Nicol; Yougu Yuan; Guanhua Yan; Chris Grier
RTiVISS: real-time video interactive systems for sustainability
RTiVISS is an exploratory project that proposes to investigate innovative concepts and design methods regarding environmental and sustainability issues. It is concerned with natural resources, specially forests, and their preservation, through critical ... Keywords: environmental art, experimental design, interactive installations, real-time video, social responsibility, sustainability
M�nica Mendes; Nuno Correia
Shedding light on shadow: real-time interactive artworks based on cast shadows or silhouettes
Digital shadowing is a source of interest in immersive and interactive artworks because it enhances the feeling of presence, and because it is a very intuitive and engaging interaction "device." After a presentation of some major pieces in shadow-based ... Keywords: augmented reality, digital art, digital shadow, interactive art, real-time image processing, video-scenography
Christian Jacquemin; Georges Gagner�; Beno�t Lahoz
Run-Time Power-Down Strategies for Real-Time SDRAM Memory Controllers
. PDTRANS PUP Figure 1: Power-Down Transitions 3.3 Arbiters and Latency-Rate Servers Real-time SDRAM memory on the memory state and the power- down duration, for both the power-down strategies. We experimentally evaluate, the tTRANS parameter gives the transition in timing constraint before the memory can switch to a power
Epema, Dick H.J.
Real�Time Wind Synthesis from Doppler Radar Observations during the Mesoscale Alpine Programme
A real�time and automated multiple�Doppler analysis method for ground�based radar data, with an emphasis on observations conducted over complex terrain, is presented. It is the result of a joint effort of the radar groups of Centre National de ...
M. Chong; J-F. Georgis; O. Bousquet; S. R. Brodzik; C. Burghart; S. Cosma; U. Germann; V. Gouget; R. A. Houze Jr.; C. N. James; S. Prieur; R. Rotunno; F. Roux; J. Vivekanandan; Z-X. Zeng
New and Emerging Technologies for Real-Time Air and Surface Beryllium Monitoring
In this study, five emerging technologies were identified for real-time monitoring of airborne beryllium: Microwave-Induced Plasma Spectroscopy (MIPS), Aerosol Beam-Focused Laser-Induced Plasma Spectroscopy (ABFLIPS), Laser-Induced Breakdown Spectroscopy (LIBS), Surfaced-Enhanced Raman Scattering (SERS) Spectroscopy, and Micro-Calorimetric Spectroscopy (CalSpec). Desired features of real-time air beryllium monitoring instrumentation were developed from the Y-12 CBDPP. These features were used as guidelines for the identification of potential technologies as well as their unique demonstrated capability to provide real-time monitoring of similar materials. However, best available technologies were considered, regardless of their ability to comply with the desired features. None of the five technologies have the capability to measure the particle size of airborne beryllium. Although reducing the total concentration of airborne beryllium is important, current literature suggests that reducing or eliminating the concentration of respirable beryllium is critical for worker health protection. Eight emerging technologies were identified for surface monitoring of beryllium. CalSpec, MIPS, SERS, LIBS, Laser Ablation, Absorptive Stripping Voltametry (ASV), Modified Inductively Coupled Plasma (ICP) Spectroscopy, and Gamma BeAST. Desired features of real-time surface beryllium monitoring were developed from the Y-12 CBDPP. These features were used as guidelines for the identification of potential technologies. However, the best available technologies were considered regardless of their ability to comply with the desired features.
Phifer, B.E. Jr.; Churnetski, E.L.; Cooke, L.E.; Reed, J.J.; Howell, M.L.; Smith, V.D.
Boosting software fault injection for dependability analysis of real-time embedded applications
The design of complex embedded systems deployed in safety-critical or mission-critical applications mandates the availability of methods to validate the system dependability across the whole design flow. In this article we introduce a fault injection ... Keywords: Embedded systems, fault injection, real-time applications
Gianpiero Cabodi; Marco Murciano; Massimo Violante
An enhanced dynamic voltage scaling scheme for energy-efficient embedded real-time control systems
Real-Time Dynamic Voltage Scaling (RT-DVS) has been one of the most important techniques for energy savings in battery-powered embedded systems. However, pure RT-DVS approaches rarely take into account the actual performance requirements of the target ...
Feng Xia; Youxian Sun
New Algorithms for Resource Reclaiming from Precedence Constrained Tasks in Multiprocessor Real-Time Systems
The scheduling of tasks in multiprocessor real-time systems has attracted many researchers in the recent past. Tasks in these systems have deadlines to be met, and most of the real-time scheduling algorithms use worst case computation times to schedule these tasks. Many resources will be left unused if the tasks are dispatched purely based on the schedule produced by these scheduling algorithms, since most of the tasks will take lesser time to execute than their respective worst case computation times. Resource reclaiming refers to the problem of reclaiming the resources left unused by a real-time task when it takes lesser time to execute than its worst case computation time. In this paper, we propose two algorithms to reclaim these resources from real-time tasks that are constrained by precedence relations and resource requirements, in shared memory multiprocessor systems. We introduce a notion called restriction vector for each task which captures its resource and precedence constraints with other tasks. This will help not only in the efficient implementation of the algorithms, but also in obtaining an improvement in performance over the reclaiming algorithms proposed in earlier work [2]. We compare our resource reclaiming algorithms with the earlier algorithms and, by experimental studies, show that they reclaim more
G. Manimaran; C. Siva Ram Murthy; Machiraju Vijay; Krithi Ramamritham
Real Time Physically-Based Modeling and Simulation of Cratering and Fragmentation of Terrain
Cratering and fragmentation of terrain due to eXplosions are the behaviors of interest in this effort. We propose a physically-based approach to model the eXplosion event and the process of terrain fragmentation resulting in the formation of craters. ... Keywords: dynamic terrain, eXplosion simulation, physics-based modeling, real time system, simulation, terrain database
Nabil Rami; Michael D. Proctor
A mobility-adaptive TDMA MAC for real-time data in wireless networks
In this paper, we present a TDMA MAC protocol for scenarios with real-time traffic like voice streams. While many previous works assume stationary networks, DynaMAC can quickly adapt to changing topologies while not violating delay guarantees for even ...
Johannes Lessmann; Dirk Held
Model driven middleware: A new paradigm for developing distributed real-time and embedded systems
Distributed real-time and embedded (DRE) systems have become critical in domains such as avionics (e.g., flight mission computers), telecommunications (e.g., wireless phone services), tele-medicine (e.g., robotic surgery), and defense applications (e.g., ... Keywords: CCM: CORBA component model, D&C: Deployment and configuration, MDM: Model driven middleware
Aniruddha Gokhale; Krishnakumar Balasubramanian; Arvind S. Krishna; Jaiganesh Balasubramanian; George Edwards; Gan Deng; Emre Turkay; Jeffrey Parsons; Douglas C. Schmidt
An Integrated Approach to Error Correction for Real-Time Radar-Rainfall Estimation
A procedure for estimating radar rainfall in real time consists of three main steps: 1) the measurement of reflectivity and removal of known sources of errors, 2) the conversion of the reflectivity to a rainfall rate (Z�R conversion), and 3) the ...
Siriluk Chumchean; Ashish Sharma; Alan Seed
Towards a Mobile Code Management Environment for Complex,Real-Time, Distributed Systems
We present a novel mobile code management environment, currently under design and development. Our design employs an open architecture, suitable for ``plug-and-play'' with COTS and other groups' tools. While we have studied new algorithms, cost and ... Keywords: Java, compilation and interpretation, distributed systems, efficiency and safety tradeoffs, mobile agents, mobile code, real-time systems
Alexander D. Stoyen; Plamen V. Petrov
Real Time Simulation and Online Control for Virtual Test Drives of Cars
Virtual prototyping plays a key role in modern car engineering. For virtual test drives of entire cars in the computer, mathematical and computational models of the vehicle, the road, and the driver are presented. The numerical simulation must be performed in real time for application in Hardware-in-the-Loop experiments. Numerical results are presented for the ISO slalom test.
Cornelius Chucholowski; Martin V�gel; Oskar von Stryk; Thiess-Magnus Wolter
Thermal Energy Storage Systems Operation and Control Strategies Under Real Time Pricing
This report describes a methodology that was developed for evaluation of operation and control strategies for thermal energy storage (TES) systems under emerging real-time price (RTP) rate structures. The methodology was demonstrated on a prototype office building in two southeastern United States climates.
Energy-conserving feedback EDF scheduling for embedded systems with real-time constraints
Embedded systems have limited energy resources. Hence, they should conserve these resources to extend their period of operation. Recently, dynamic frequency scaling (DFS) and dynamic voltage scaling (DVS) have been added to a various embedded processors ... Keywords: dynamic voltage scaling, real-time systems, scheduling
Ajay Dudani; Frank Mueller; Yifan Zhu
Real-Time Short-Term Forecasting of Precipitation at an Australian Tropical Station
The results of a major real-time trial of techniques for the short-term (12 h ahead) prediction of precipitation for the Australian tropical city of Darwin are described. The trial compared current operational manual forecasting procedures with a ...
K. Fraedrich; L. M. Leslie
Can Real-Time Machine Translation Overcome Language Barriers in Distributed Requirements Engineering?
distant cultures with different languages and communication styles that, in turn, exacerbate communication software development requires close cooperation of individuals with distant cultural backgrounds. Cultural to explore the performance of MT in real-time text chat. The findings from our simulation are presented
Lanubile, Filippo
Real-Time Quality Control of Wave Observations in the North Sea
The use of ocean wave data in new data assimilation techniques prompted the development of a real-time quality control system for wave height and wave period observations. Over the North Sea, a relatively large number of wave observations, as ...
Mar�a Paula Etala; Gerrit Burgers
Voices of victory: a computational focus group framework for tracking opinion shift in real time
Social media have been employed to assess public opinions on events, markets, and policies. Most current work focuses on either developing aggregated measures or opinion extraction methods like sentiment analysis. These approaches suffer from unpredictable ... Keywords: computational social science, data-driven journalism, process inference, public opinion, real time system, social meter
Yu-Ru Lin, Drew Margolin, Brian Keegan, David Lazer
The managed motorway: real-time vehicle scheduling: a research agenda
Air pollution, traffic congestion, stress and accidents are common features of today's road transportation experience. New approaches to improving the efficiency and safety of transportation systems are therefore required. Existing work on safe high-speed ... Keywords: adaptive scheduling, managed motorway, real-time
Vinny Cahill; Aline Senart; Douglas C. Schmidt; Stefan Weber; Anthony Harrington; Barbara Hughes
A Framework for Middleware Supporting Real-Time Wide-Area Distributed Computing
computing is to effect impor- tant output actions within precisely specified time- windows. In RT DC systems-Oriented Real-time Distributed Computing), Washington D.C., April 2002, pp. 288-294. [Kop97] Kopetz, H., 'Real specification. 1. Introduction The history of distributed computing (DC) spans more than three decades
California at San Diego, University of
Condensate system modelling in real time for a training power plant simulator
In this paper, the basis of the models of the condensate water and the air cooled condenser are presented. The models are part of a full scope simulator of a 450 MW combined cycle power plant. The simulator is executed in real time and is intended to ...
Yadira Mendoza-Alegr�a; Edgardo J. Roldan-Villasana
Integrated system for control and monitoring in real time of efficient electrical and thermal energy production
The integrated monitoring and driving system is made of main distributed components: - first level:_one or two computers placed in the control room which monitors the thermal and electrical processes based on the datas provided by the second level via ... Keywords: cogenerative gas power plant, control of distributed parameter systems, distribution management system, electric power systems, optimization, process control, real time systems, simulation
Ion Miciu; Florin Hartescu
A High Integrity Profile for Memory Safe Programming in Real-time Java
the structure of Real-time Java programs. By giving an additional mean- ing to the package construct, we, de be allocated within any package but will be prevented from abstract class ScopeGate { protected Scope, we moved classes amongst packages so that Scoped Zen's package structure matched the scope structure
Zhao, Tian
Improving schedulability and energy efficiency for real-time systems with (m,k)-guarantee
In this paper, we explore improving the schedulability and energy performance for real-time systems with (m, k)-constraints, which require that at least m out of any k consecutive jobs of a task meet their deadlines. The preliminary ...
Linwei Niu, Kuai Xu
Real-Time Signal Estimation From Modified Short-Time Fourier Transform Magnitude Spectra
An algorithm for estimating signals from short-time magnitude spectra is introduced offering a significant improvement in quality and efficiency over current methods. The key issue is how to invert a sequence of overlapping magnitude spectra (a ldquospectrogramrdquo) ... Keywords: Magnitude-only reconstruction, real-time systems, signal estimation, spectrogram inversion, time-scale modification (TSM)
Xinglei Zhu; G. Beauregard; L. Wyse
Real-time robust background subtraction under rapidly changing illumination conditions
Fast robust background subtraction under sudden lighting changes is a challenging problem in many applications. In this paper, we propose a real-time approach, which combines the Eigenbackground and Statistical Illumination method to address this issue. ... Keywords: Background subtraction, EM, Eigenbackground, Illumination changes
Luc Vosters; Caifeng Shan; Tommaso Gritti
Algorithm of feature estimation for real time objects detection in thermal images
Objects detection in thermal or infrared images is an actual and necessary problem in wide range of thermo visual systems applications. The goal of this article is to select a suitable set of features for objects detection in thermal images. Using the ... Keywords: features estimation, infrared images, real time objects detection, thermal images
Snejana Pleshkova
Energy Aware Dynamic Voltage and Frequency Selection for Real-Time Systems with Energy Harvesting
Energy Aware Dynamic Voltage and Frequency Selection for Real-Time Systems with Energy firstname.lastname@example.com Abstract In this paper, an energy aware dynamic voltage and frequency selection (EA-DVFS) algorithm energy and the harvested energy in a future duration. Specifically, if the system has sufficient energy
Snow Nowcasting Using a Real-Time Correlation of Radar Reflectivity with Snow Gauge Accumulation
This paper describes and evaluates an algorithm for nowcasting snow water equivalent (SWE) at a point on the surface based on a real-time correlation of equivalent radar reflectivity (Ze) with snow gauge rate (S). It is shown from both theory and ...
Roy Rasmussen; Michael Dixon; Steve Vasiloff; Frank Hage; Shelly Knight; J. Vivekanandan; Mei Xu
Improving a robotics framework with real-time and high-performance features
Middleware has a key role in modern and object-oriented robotics frameworks, which aim at developing reusable, scalable and maintainable systems using different platforms and programming languages. However, complex robotics software falls into the category ... Keywords: data distribution service, middleware, performance, real-time, robotics
Jes�s Mart�nez; Adri�n Romero-Garc�s; Luis Manso; Pablo Bustos
VLSI-DSP based real time solution of DSC-SRI for an ultrasound system
In this paper, VLSI-DSP based a real time solution for Digital Scan Conversion (DSC) and speckle reduced imaging (SRI) of an ultrasonography (USG) are proposed. DSC is needed to convert the polar format data to Cartesian coordinate to make them compatible ... Keywords: DaVinci, Digital Scan Conversion, FPGA, Speckle reduction imaging, Ultrasound sonography
Kishor Prabhakar Sarawadekar; Harihar Bharat Indana; Deep Bera; Swapna Banerjee
Development of Real Time RT-PCR Assays for Neuraminidase Subtyping of
Development of Real Time RT-PCR Assays for Neuraminidase Subtyping of Avian Influenza Virus Yanyan (PCR) has become the method of choice for virus subtype identification, largely replacing traditional]. However, designing subtype specific PCR primer pairs is a very challenging task [4]: on one hand, selected
Mandoiu, Ion
On-chip real-time single-copy polymerase chain reaction in picoliter droplets
The first lab-on-chip system for picoliter droplet generation and PCR amplification with real-time fluorescence detection has performed PCR in isolated droplets at volumes 10{sup 6} smaller than commercial real-time PCR systems. The system utilized a shearing T-junction in a silicon device to generate a stream of monodisperse picoliter droplets that were isolated from the microfluidic channel walls and each other by the oil phase carrier. An off-chip valving system stopped the droplets on-chip, allowing them to be thermal cycled through the PCR protocol without droplet motion. With this system a 10-pL droplet, encapsulating less than one copy of viral genomic DNA through Poisson statistics, showed real-time PCR amplification curves with a cycle threshold of {approx}18, twenty cycles earlier than commercial instruments. This combination of the established real-time PCR assay with digital microfluidics is ideal for isolating single-copy nucleic acids in a complex environment.
Beer, N R; Hindson, B; Wheeler, E; Hall, S B; Rose, K A; Kennedy, I; Colston, B
Sensing Requirements for Real-Time Monitoring and Control in Energy Production
of coal (syngas), requires physical and chemical sensors for exhaust gas monitoring as well as real-time control of the combustion process. Following a description of syngas production from coal, we outline species at 630 °C. Our SiC sensor can monitor the hydrogen concentration in a 350 °C simulated syngas
Ghosh, Ruby N.
InClass-RTD: providing support for real-time threaded discussions in the classroom
Groupware applications that provide support for in-class collaborative knowledge construction are becoming an important research topic for the CSCW and CSCL communities. They provide support for lightweight interaction among participants, and for these ... Keywords: CSCL, in-class requested and spontaneous interactions, inclass-RTD, real-time threaded discussions
Alberto L. Mor�n; Carmen Perez; Marcela Rodr�guez
Real-time remote control of a robot manipulator using Java and client-server architecture
The control of complex systems through PC networks is becoming increasingly important nowadays, both in the industries and in R&D centers. In this paper, a novel architecture is described which provides 24-h-a-day access to a remote system for remote ... Keywords: RS232, client, communication protocol, internet, java, planar manipulator, real-time, remote control, server
F. M. Raimondi; L. S. Ciancimino; M. Melluso
Coupling real-time control and socio-economic issues in participatory river basin planning
In this paper an approach for coupling real-time control and socio-economic issues in participatory river basin planning is presented through a case study. It relies on the use of Bayesian Networks (Bns) to describe in a probabilistic way the behaviour ... Keywords: Bayesian Networks, Integrated Water Resource Management, Model integration, Participation, Reservoir operation
A. Castelletti; R. Soncini-Sessa
Measurement, Analysis and Modeling of real-time Source Data traffic in Factory Communication Systems
In the performance evaluation and design of communication systems for distributed automation systems the almost realistic modeling of the data traffic of automation devices plays a decisive part. Therefore the real-time communication behaviour of a high-grade automated installation in the discrete manufacturing is evaluated. Selected communication requirements are analysed and transferred to a analytic model. This model finally is validated.
Juergen Jasperneite; Peter Neumann
for incoming calls to the exported remote object. The others are worker threads for handling each accepted-time worker threads for handling incoming calls to exported remote objects. We have modified the run() methodDESIGN REAL-TIME JAVA REMOTE METHOD INVOCATION: A SERVER-CENTRIC APPROACH Sangig Rho Samsung
Choi, Byung K.
Hard Real-Time Garbage Collection for a Java Chip Multi-Processor
or hard copies of all or part of this work for personal or classroom use is granted without fee provided, these approaches implement substantial parts or all of the garbage collector in hard- ware. In contrast, ourHard Real-Time Garbage Collection for a Java Chip Multi-Processor Wolfgang Puffitsch Institute
Effect of real-time electricity pricing on renewable generators and system emissions
Real-time retail pricing (RTP) of electricity, in which the retail price is allowed to vary with very little time delay in response to changes in the marginal cost of generation, offers expected short-run and long-run ...
Connolly, Jeremiah P. (Jeremiah Peter)
A Description of the Air Force Real-Time Nephanalysis Model
The Air Force Global Weather Central (AFGWC) Real-Time Nephanalysis (RTNEPH) is an automated cloud model that produces a 48-km gridded analysis of cloud amount, cloud type, and cloud height. Its primary input is imagery from polar-orbiting ...
Thomas M. Hamill; Robert P. D'Entremont; James T. Buntin
Efficient and Precise Cache Behavior Prediction for Real-TimeSystems
Abstract interpretation is a technique for the static detection of dynamic properties of programs. It is semantics based, that is, it computes approximative properties of the semantics of programs. On this basis, it supports correctness proofs of ... Keywords: abstract interpretation, cache behavior prediction, cache memories, program analysis, real time applications, worst case execution time prediction
Christian Ferdinand; Reinhard Wilhelm
Real-time haptic incision simulation using FEM-based discontinuous free form deformation
Computer-aided surgical simulation is a topic of increasingly extensive research. Computer graphics, geometric modeling and finite-element analysis all play major roles in these simulations. Furthermore, real-time response, interactivity and accuracy ... Keywords: finite element model, free-form deformation, surgical simulation
Guy Sela; Jacob Subag; Alex Lindblad; Dan Albocher; Sagi Schein; Gershon Elber
Technical Section: Stream-based animation of real-time crowd scenes
We present a new way of drawing a crowd of animated characters in real-time. Previous work has focused almost exclusively on how to visualize ever larger crowd scenes and the current state-of-the-art can display tens of thousands of virtual humans with ... Keywords: Animation, Crowd simulation, OpenCL
Wayne Daniel Lister; Andy Day
GPU-accelerated multi-valued solid voxelization by slice functions in real time
This paper presents a GPU-accelerated slice-independent solid voxelization approach that utilizes a dynamic slice function mechanism and masking techniques to significantly improve solid voxelization speed in real time as well as create various multi-valued ... Keywords: GPU acceleration, masking, solid slice function, solid voxelization, volume modeling
Duoduo Liao
Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and
Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Interscan 4160-500B Portable Monitor Title Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Interscan 4160-500B Portable Monitor Publication Type Report LBNL Report Number LBNL-6357E Year of Publication 2013 Authors Sidheswaran, Meera A., Sebastian Cohn, Douglas P. Sullivan, and Lara A. Gundel Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Executive Summary Exposure to volatile organic compounds (VOCs) in buildings is a health hazard. Of particular concern is formaldehyde, a ubiquitous carcinogen emitted from furnishings and adhesives in homes and offices. Practitioners and researchers in the area of building performance are very interested in measuring formaldehyde in homes, and they need instrumentation that responds immediately. Current formaldehyde monitoring techniques are hampered by interfering substances in the sample airstream, compromising measurement accuracy and leading to drift. Many experts are now using a tabletop real-time formaldehyde instrument, the Interscan 4160-2, that LBNL researchers have found to be very sensitive to water vapor and low levels of volatile organic compounds (VOCs). Unless ways are found to remove these interferences, relying on the Interscan's readings in buildings will lead to the wrong conclusions about formaldehyde levels and could trigger subsequent unnecessary expense and/or inappropriate responses.