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Transportation Routing Analysis Geographic Information System (TRAGIS)
E-Print Network (OSTI)
Transportation Routing Analysis Geographic Information System (TRAGIS) Model and Network Databases The Transportation Routing Analysis Geographic Information System (TRAGIS) model is a geographic information system tool for modeling transportation routing. TRAGIS offers numerous options for route calculation
Transportation Routing Analysis Geographic Information System...
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
Transportation Routing Analysis Geographic Information System (TRAGIS) to Spent Fuel Routing Analysis P. E. Johnson R.R. Rawl Oak Ridge National Laboratory TRAGIS is being used by...
Transportation Routing Analysis Geographic Information System (TRAGIS) User's Manual
Science Conference Proceedings (OSTI)
The Transportation Routing Analysis Geographic Information System (TRAGIS) model is used to calculate highway, rail, or waterway routes within the United States. TRAGIS is a client-server application with the user interface and map data files residing on the user's personal computer and the routing engine and network data files on a network server. The user's manual provides documentation on installation and the use of the many features of the model.
Johnson, PE
Geographically-Based Infrastructure Analysis
NLE Websites -- All DOE Office Websites (Extended Search)
Infrastructure Infrastructure Analysis Margo Melendez & Keith Parks January 26, 2006 Geographically-Based Infrastructure Analysis (GIA) Utilizes GIS, geographically segregated data, and transition expertise to add the spatial component to infrastructure analysis NREL Core Competencies * Geographic data, tools, and expertise * Flexibility to address a wide array of transition issues NREL Capability Diagram Geographically-based Infrastructure Analysis GIS Transportation Technologies & Systems Electric & Hydrogen Technologies Energy Analysis Office GIA Activities Previous and Ongoing * HYDS ME - Evaluates best infrastructure options * Interstate Infrastructure Analysis - Minimal infrastructure to facilitate interstate travel during transition New Analyses * Quantifying transitional hydrogen demand
On energy efficiency of geographic opportunistic routing in lossy multihop wireless networks
Geographic opportunistic routing (GOR) is an emerging technique that can improve energy efficiency in lossy multihop wireless networks. GOR makes local routing decision by using nodes' location information, and exploits the broadcast nature and spatial ... Keywords: Energy efficiency, Geographic opportunistic routing, Multihop wireless networks
Kai Zeng; Jie Yang; Wenjing Lou
A new hybrid computational intelligence algorithm for optimized vehicle routing applications in geographic information systems.
??This project explores the application of two developing algorithmic paradigms from the field of computational intelligence towards optimized vehicle routing applications within geographic information systems� (more)
Rice, Michael Norris
Geographically-Based Infrastructure Analysis for California
Geographically-Based Infrastructure Geographically-Based Infrastructure Analysis for California Joan Ogden Institute of Transportation Studies University of California, Davis Presented at the USDOE Hydrogen Transition Analysis Meeting Washington, DC August 9-10, 2006 Acknowledgments UC Davis Researchers: Michael Nicholas Dr. Marc Melaina Dr. Marshall Miller Dr. Chris Yang USDOE: Dr. Sig Gronich Research support: USDOE; H2 Pathways Program sponsors at UC Davis * Refueling station siting and sizing are key aspects of designing H2 infrastructure during a transition * Initial H2 stations may be co-located with vehicle fleets * Wider consumer adoption of H2 vehicles depends on fuel availability and cost (which are related to station number, size and location), + other factors. * Decision when and where to deploy network
Geographic Analysis of the Radiation Oncology Workforce
Purpose: To evaluate trends in the geographic distribution of the radiation oncology (RO) workforce. Methods and Materials: We used the 1995 and 2007 versions of the Area Resource File to map the ratio of RO to the population aged 65 years or older (ROR) within different health service areas (HSA) within the United States. We used regression analysis to find associations between population variables and 2007 ROR. We calculated Gini coefficients for ROR to assess the evenness of RO distribution and compared that with primary care physicians and total physicians. Results: There was a 24% increase in the RO workforce from 1995 to 2007. The overall growth in the RO workforce was less than that of primary care or the overall physician workforce. The mean ROR among HSAs increased by more than one radiation oncologist per 100,000 people aged 65 years or older, from 5.08 per 100,000 to 6.16 per 100,000. However, there remained consistent geographic variability concerning RO distribution, specifically affecting the non-metropolitan HSAs. Regression analysis found higher ROR in HSAs that possessed higher education (p = 0.001), higher income (p rates (p < 0.001), and higher minority population (p = 0.022). Gini coefficients showed RO distribution less even than for both primary care physicians and total physicians (0.326 compared with 0.196 and 0.292, respectively). Conclusions: Despite a modest growth in the RO workforce, there exists persistent geographic maldistribution of radiation oncologists allocated along socioeconomic and racial lines. To solve problems surrounding the RO workforce, issues concerning both gross numbers and geographic distribution must be addressed.
Aneja, Sanjay [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Cancer Outcomes, Policy, and Effectiveness Research Center at Yale, New Haven, CT (United States); Smith, Benjamin D. [University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Gross, Cary P. [Cancer Outcomes, Policy, and Effectiveness Research Center at Yale, New Haven, CT (United States); Department of General Internal Medicine, Yale University School of Medicine, New Haven, CT (United States); Wilson, Lynn D. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Haffty, Bruce G. [Cancer Institute of New Jersey, New Brunswick, NJ (United States); Roberts, Kenneth [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Yu, James B., E-mail: email@example.com [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Cancer Outcomes, Policy, and Effectiveness Research Center at Yale, New Haven, CT (United States)
Transportation Routing Analysis Georgraphic Information System (WebTRAGIS) User's Manual
SciTech Connect
In the early 1980s, Oak Ridge National Laboratory (ORNL) developed two transportation routing models: HIGHWAY, which predicts truck transportation routes, and INTERLINE, which predicts rail transportation routes. Both of these models have been used by the U.S. Department of Energy (DOE) community for a variety of routing needs over the years. One of the primary uses of the models has been to determine population-density information, which is used as input for risk assessment with the RADTRAN model, which is available on the TRANSNET computer system. During the recent years, advances in the development of geographic information systems (GISs) have resulted in increased demands from the user community for a GIS version of the ORNL routing models. In April 1994, the DOE Transportation Management Division (EM-261) held a Baseline Requirements Assessment Session with transportation routing experts and users of the HIGHWAY and INTERLINE models. As a result of the session, the development of a new GIS routing model, Transportation Routing Analysis GIS (TRAGIS), was initiated. TRAGIS is a user-friendly, GIS-based transportation and analysis computer model. The older HIGHWAY and INTERLINE models are useful to calculate routes, but they cannot display a graphic of the calculated route. Consequently, many users have experienced difficulty determining the proper node for facilities and have been confused by or have misinterpreted the text-based listing from the older routing models. Some of the primary reasons for the development of TRAGIS are (a) to improve the ease of selecting locations for routing, (b) to graphically display the calculated route, and (c) to provide for additional geographic analysis of the route.
Michelhaugh, R.D.
A Novel Trust-Aware Geographical Routing Scheme for Wireless Sensor Networks
Wireless sensor networks are vulnerable to a wide set of security attacks, including those targeting the routing protocol functionality. The applicability of legacy security solutions is disputable (if not infeasible), due to severe restrictions in node ... Keywords: Routing attacks, Secure routing, Security, Trust model, Wireless sensor networks
Theodore Zahariadis; Panagiotis Trakadas; Helen C. Leligou; Sotiris Maniatis; Panagiotis Karkazis
DOE Hydrogen Analysis Repository: Transportation Routing Analysis...
model can be used to complete the technoeconomic analysis of hydrogen delivery for the DOE Hydrogen Program by analyzing the highway transportation network to determine locations...
A Local Metric for Geographic Routing with Power Control in Wireless Networks
operating point of SNR that lies in the transitional region (where packet error rates are non state information. In particular, when electronic power is relatively low, the proposed algorithm can routing: the ratio of the product of the packet reception rate and distance improvement to the total power
Krishnamachari, Bhaskar
Geographically Based Hydrogen Demand and Infrastructure Analysis
Analysis Analysis Prepared for: 2010-2025 H2 Scenario Analysis Meeting Margo Melendez - NREL 2 Disclaimer and Government License This work has been authored by Midwest Research Institute (MRI) under Contract No. DE-AC36- 99GO10337 with the U.S. Department of Energy (the "DOE"). The United States Government (the "Government") retains and the publisher, by accepting the work for publication, acknowledges that the Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for Government purposes. Neither MRI, the DOE, the Government, nor any other agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any liability
Geographically Based Hydrogen Consumer Demand and Infrastructure Analysis: Final Report
Geographically Based Hydrogen Geographically Based Hydrogen Consumer Demand and Infrastructure Analysis Final Report M. Melendez and A. Milbrandt Technical Report NREL/TP-540-40373 October 2006 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 Geographically Based Hydrogen Consumer Demand and Infrastructure Analysis Final Report M. Melendez and A. Milbrandt Prepared under Task No. HF65.8310 Technical Report NREL/TP-540-40373 October 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.
The Adversarial Route Analysis Tool: A Web Application
The Adversarial Route Analysis Tool is a type of Google maps for adversaries. It's a web-based Geospatial application similar to Google Maps. It helps the U.S. government plan operations that predict where an adversary might be. It's easily accessible and maintainble and it's simple to use without much training.
Casson, William H. Jr. [Los Alamos National Laboratory
NREL: Dynamic Maps, Geographic Information System (GIS) Data and Analysis
October 2012 - End of Fiscal Year Addition October 2012 - End of Fiscal Year Addition The Geographic Information System (GIS) Team at the National Renewable Energy Laboratory (NREL) encompasses a broad range of scientific research and reporting activity in support of the U.S. Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy (EERE), NREL programs and initiatives, and the GIS community. The purpose of this end of FY newsletter is to highlight a few of the new tools and announce changes and addition of datasets that were finished by the end of our Fiscal year. You are receiving this message because you have subscribed to our mailing list. Featured Tools A screenshot of the Geothermal Analysis tool with a pie chart showing the surface ownership percentages and acerage of tribal lands in the United States.
Geographic analysis of childhood lead exposure in New York state
This study examines the geographic variation in the blood lead levels (BLLs) of New York State children using spatial filtering, contour mapping, and regression techniques. Data for 364,917 children tested for BLLs prior to age two were extracted from New York State�s electronic blood lead reporting system. Spatial filtering methods were used to determine which areas of the state had the highest prevalence of children with elevated BLLs (BLLs>10 �g/dL). The method used a variable filter size to allow for the simultaneous evaluation of urban and rural areas of the state. The results showed that several upstate urban areas had the highest proportion of children with elevated BLLs. Screening rates were also found to be higher in areas with a high proportion of children with elevated BLLs, indicating that areas with a high risk of lead exposure were well screened. Multiple regression analysis, using areas made up of merged zip code regions as the units of observation, was conducted to describe the relationship between the prevalence of children with elevated BLLs and community characteristics. High prevalence of elevated BLLs was predicted in areas with older housing stock, a smaller proportion of high school graduates, and a larger proportion of black births. Separate models were developed for New York City and the rest of the state, since the effect of the variables was lower in New York City.
Thomas O Talbot; Steven P For; Valerie B Haley
First Quarter 2012 First Quarter 2012 The Geographic Information System (GIS) Team at the National Renewable Energy Laboratory (NREL) encompasses a broad range of scientific research and reporting activity in support of the U.S. Department of Energy's (DOE) Office of Energy Efficiency and Renewable Energy (EERE), NREL programs and initiatives, and the GIS community. The purpose of this quarterly newsletter is to feature recent projects, highlight new tools and announce datasets available for download. Featured Project Thummbnail of the 10-km TMY3 boundries map. 10-kilometer TMY3 Boundaries Refined GIS analyst, Anthony Lopez, is finalizing a project that defines 10-kilometer TMY3 boundaries based on the spatial variance of resource, elevation, distance to station, and station uncertainty-as opposed to
Deactivation and Decommissioning Planning and Analysis with Geographic Information Systems
From the mid-1950's through the 1980's, the U.S. Department of Energy's Savannah River Site produced nuclear materials for the weapons stockpile, for medical and industrial applications, and for space exploration. Although SRS has a continuing defense-related mission, the overall site mission is now oriented toward environmental restoration and management of legacy chemical and nuclear waste. With the change in mission, SRS no longer has a need for much of the infrastructure developed to support the weapons program. This excess infrastructure, which includes over 1000 facilities, will be decommissioned and demolished over the forthcoming years. Dis-positioning facilities for decommissioning and deactivation requires significant resources to determine hazards, structure type, and a rough-order-of-magnitude estimate for the decommissioning and demolition cost. Geographic information systems (GIS) technology was used to help manage the process of dis-positioning infrastructure and for reporting the future status of impacted facilities. Several thousand facilities of various ages and conditions are present at SRS. Many of these facilities, built to support previous defense-related missions, now represent a potential hazard and cost for maintenance and surveillance. To reduce costs and the hazards associated with this excess infrastructure, SRS has developed an ambitious plan to decommission and demolish unneeded facilities in a systematic fashion. GIS technology was used to assist development of this plan by: providing locational information for remote facilities, identifying the location of known waste units adjacent to buildings slated for demolition, and for providing a powerful visual representation of the impact of the overall plan. Several steps were required for the development of the infrastructure GIS model. The first step involved creating an accurate and current GIS representation of the infrastructure data. This data is maintained in a Computer Aided Design (CAD) system and had to be imported into a GIS framework. Since the data is maintained in a different format in CAD, import into GIS involved several spatial processing steps to convert various geometric shapes present in the CAD data to self-closing polygons. The polygons represent facility footprints in plan or map view. Once these were successfully imported and converted, building identifier attributes from the CAD had to be associated with the appropriate polygons in GIS. Attributes are stored as graphical information in a CAD system and are not 'attached' to a building in a relational sense. In GIS, attributes such as building names, building area, hazards, or other descriptive information, must be associated or related to the spatial polygon representing a particular building. This spatial relationship between building polygons and the descriptive attribute information is very similar to relating tables of information in a relational database in which each table record has a unique identifier that can be used to join or relate that table to other tables of information present in the database. The CAD building identifiers were imported into the GIS and several spatial processing steps were used to associate building polygons with the correct identifiers. These spatial steps involved determining the intersection of and nearest identifiers with each building polygon in the GIS. Automating this process in GIS saved a significant amount of time. Once a current and geographically correct representation of the infrastructure data had been created in GIS, field-engineering teams collected information for each facility. This information included the building area, radiological hazards and the associated area, industrial hazards such as asbestos or mercury, structure type (e.g. hardened, industrial, nuclear), annual surveillance and monitoring cost, and other engineering data. The facility engineering data was used in a simple model to determine the rough-order-of-magnitude cost for decontaminating and demolishing each facility. Finally, the engineering and cost d
Bollinger, James S.; Koffman, Larry D.; Austin, William E. [Savannah River National Laboratory, Bldg. 735-A, Aiken, SC 29808 (United States)
Geographically-Based Hydrogen Demand & Infrastructure Rollout Scenario Analysis (Presentation)
DOE Green Energy (OSTI)
This presentation by Margo Melendez at the 2007 DOE Hydrogen Program Annual Merit Review Meeting provides information about NREL's Hydrogen Demand & Infrastructure Rollout Scenario Analysis.
Melendez, M.
Geographic analysis & visualization of climate extremes for the Quadrennial Defense Review
We have developed demonstrable capabilities in the area of geographic analysis and visualization for climate extremes, uncertainty and impacts. The capabilities were used for to provide climate science support to an international climate change war game, ... Keywords: GIS science, climate change
Auroop R. Ganguly; Karsten Steinhaeuser; Alexander Sorokine; Esther S. Parish; Shih-Chieh Kao; Marcia Branstetter
.S. Hundreds of active and abandoned uranium mines are scattered over wide areas of the western United States2.0 GEOGRAPHIC ANALYSIS ON THE LOCATION OF URANIUM MINES With the exception of some phosphate mine areas in central and northern Florida, people are most likely to be exposed to uranium mining
Geographic and Operational Site Parameters List (GOSPL) for the 2004 Composite Analysis
This report briefly describes each of the key data fields, including the source(s) of data, and provides the resulting inputs to be used for the 2004 Composite Analysis. A master spreadsheet termed the Geographic and Operational Site Parameters List (GOSPL) was assembled to facilitate the generation of keyword input files containing general information on each waste site, its operational/disposal history, and its environmental settings (past, current, and future).
Last, George V.; Nichols, William E.; Kincaid, Charles T.
Geographic market suitability analysis for low- and intermediate-temperature solar IPH systems
Previous studies of the industrial market for solar energy systems have considered the level of solar radiation as the main determinant of geographic markets in the US. This study evaluates geographical markets extensively based on such criteria as output of different types of low- and intermediate-temperature solar thermal collectors, air quality constraints for competitive fuels, state solar tax incentives, fuel costs, low industrial use of coal, high industrial growth areas, and industry energy consumption in different parts of the US. Market suitability analysis and mapping techniques, refined in the past 20 years by land use planners, were used to evaluate geographical markets. A computer-aided system, Generalized Map Analysis Planning System (GMAPS), performed interactive, cellular, computer mapping, and composite mapping. Results indicate that the US Southwest and West are the most attractive geographical markets for solar IPH, based on an equal weighting of the evaluation criteria. The West North-Central and East South-Central regions appear to have the least attractive markets. Specific areas within states where solar IPH systems have distinct marketing advantages also are apparent from the composite maps. However, when different weights are assigned to the various criteria, the results change significantly for some regions of the country, such as the New England, Mid-Atlantic, and West South-Central 2 regions. The results of this work will become less valid in the future as state incentives for solar IPH, air quality regulations, and the status of competitive fuels all change. Volume I contains study results and maps.
Turner, A.K.; Weber, J.C.; DeAngelis, M.
Herring spawning areas of British Columbia: A review, geographic analysis and classification
The geographical distributions of Pacific herring (Clupea pallasi) spawning sites have been estimated each year since 1928. The analysis was based on approximately 29,000 spawning events recorded mostly by fishery officers and diver teams in six regions of the British Columbia (BC) coast. For each of about 100 geographical sections of BC, time series bubble plot maps were constructed to delineate annual herring spawn deposition along each kilometre of shoreline from 1930 to the year 2001. Cumulative spawn deposition (from 1928 to 2006) was also mapped using proportionately sized, multicoloured, bubble plots which rank and classify each kilometre of herring spawning habitat according to the long-term frequency and magnitude of spawns over time. The analysis was conducted coast-wide, so that any kilometre on the BC coast could be compared with any other kilometre. Approximately 5,260 km (or 18 %) of British Columbia's extensive 29,500 km coastline have been ranked and classified as herring spawning habitat. An estimated 450 to 600 kilometres (or about 1.8 % of BC shoreline) is utilized by spawners in a typical year. The approximate shapes of herring spawn depositions were also digitized over a 1:20,000 scale, Terrain Resource Information Management (TRIM) map for the years 1930 to 2002. Composite spawn maps for each section of BC were created by chronologically overlaying spawn polygons. In 2005, Arcview�
D. E. Hay; P. B. Mccarter
Yucca Mountain transportation routes: Preliminary characterization and risk analysis; Volume 1, Research report
In this study, rail and highway routes which may be used for shipments of high-level nuclear waste to a proposed repository at Yucca Mountain, Nevada are characterized. This characterization facilitates three types of impact analysis: comparative study, limited worst-case assessment, and more sophisticated probabilistic risk assessment techniques. Data for relative and absolute impact measures are provided to support comparisons of routes based on selected characteristics. A worst-case scenario assessment is included to determine potentially critical and most likely places for accidents or incidents to occur. The assessment facilitated by the data in this study is limited because impact measures are restricted to the identification of potential areas or persons affected. No attempt is made to quantify the magnitude of these impacts. Most likely locations for accidents to occur are determined relative to other locations within the scope of this study. Independent factors and historical trends used to identify these likely locations are only proxies for accident probability.
Souleyrette, R.R. II; Sathisan, S.K.; di Bartolo, R. [Nevada Univ., Las Vegas, NV (United States). Transportation Research Center
Petrophysical Analysis and Geographic Information System for San Juan Basin Tight Gas Reservoirs
The primary goal of this project is to increase the availability and ease of access to critical data on the Mesaverde and Dakota tight gas reservoirs of the San Juan Basin. Secondary goals include tuning well log interpretations through integration of core, water chemistry and production analysis data to help identify bypassed pay zones; increased knowledge of permeability ratios and how they affect well drainage and thus infill drilling plans; improved time-depth correlations through regional mapping of sonic logs; and improved understanding of the variability of formation waters within the basin through spatial analysis of water chemistry data. The project will collect, integrate, and analyze a variety of petrophysical and well data concerning the Mesaverde and Dakota reservoirs of the San Juan Basin, with particular emphasis on data available in the areas defined as tight gas areas for purpose of FERC. A relational, geo-referenced database (a geographic information system, or GIS) will be created to archive this data. The information will be analyzed using neural networks, kriging, and other statistical interpolation/extrapolation techniques to fine-tune regional well log interpretations, improve pay zone recognition from old logs or cased-hole logs, determine permeability ratios, and also to analyze water chemistries and compatibilities within the study area. This single-phase project will be accomplished through four major tasks: Data Collection, Data Integration, Data Analysis, and User Interface Design. Data will be extracted from existing databases as well as paper records, then cleaned and integrated into a single GIS database. Once the data warehouse is built, several methods of data analysis will be used both to improve pay zone recognition in single wells, and to extrapolate a variety of petrophysical properties on a regional basis. A user interface will provide tools to make the data and results of the study accessible and useful. The final deliverable for this project will be a web-based GIS providing data, interpretations, and user tools that will be accessible to anyone with Internet access. During this project, the following work has been performed: (1) Assimilation of most special core analysis data into a GIS database; (2) Inventorying of additional data, such as log images or LAS files that may exist for this area; (3) Analysis of geographic distribution of that data to pinpoint regional gaps in coverage; (4) Assessment of the data within both public and proprietary data sets to begin tuning of regional well logging analyses and improve payzone recognition; (5) Development of an integrated web and GIS interface for all the information collected in this effort, including data from northwest New Mexico; (6) Acquisition and digitization of logs to create LAS files for a subset of the wells in the special core analysis data set; and (7) Petrophysical analysis of the final set of well logs.
Martha Cather; Robert Lee; Robert Balch; Tom Engler; Roger Ruan; Shaojie Ma
U.S. Geographic Analysis of the Cost of Hydrogen from Electrolysis
This report summarizes U.S. geographic analysis of the cost of hydrogen from electrolysis. Wind-based water electrolysis represents a viable path to renewably-produced hydrogen production. It might be used for hydrogen-based transportation fuels, energy storage to augment electricity grid services, or as a supplement for other industrial hydrogen uses. This analysis focuses on the levelized production, costs of producing green hydrogen, rather than market prices which would require more extensive knowledge of an hourly or daily hydrogen market. However, the costs of hydrogen presented here do include a small profit from an internal rate of return on the system. The cost of renewable wind-based hydrogen production is very sensitive to the cost of the wind electricity. Using differently priced grid electricity to supplement the system had only a small effect on the cost of hydrogen; because wind electricity was always used either directly or indirectly to fully generate the hydrogen. Wind classes 3-6 across the U.S. were examined and the costs of hydrogen ranged from $3.74kg to $5.86/kg. These costs do not quite meet the 2015 DOE targets for central or distributed hydrogen production ($3.10/kg and $3.70/kg, respectively), so more work is needed on reducing the cost of wind electricity and the electrolyzers. If the PTC and ITC are claimed, however, many of the sites will meet both targets. For a subset of distributed refueling stations where there is also inexpensive, open space nearby this could be an alternative to central hydrogen production and distribution.
Saur, G.; Ainscough, C.
The Geographical Life of Search
This article describes a geographical study on the usage of a search engine, focusing on the traffic details at the level of countries and continents. The main objective is to understand from a geographic point of view, how the needs of the users are ... Keywords: Geographic analysis, Web usage
Ricardo Baeza-Yates; Christian Middleton; Carlos Castillo
Rail Routing Criteria Selection
File name 1 File name 1 Rail Routing: Using Decision Analysis to Evaluate Objectives Ruth F. Weiner, Sandia National Laboratories Steven Hamp, U. S. Department of Energy April 22, 2004 Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. TEC1 File name 2 Scoping the Problem * More than one rail route is available between any spent fuel site in the U. S. and Caliente, NV. * Routes differ in several parameters, like route length, track quality, urban areas transited, and so on. * Any particular route may not uniformly have more desirable parameters than another route; e.g. a shorter route may go through more urban centers.
The use of geographic information systems technology for salmon habitat analysis
Although Geographic Information Systems (GISs) have traditionally been used to analyze terrestrial animal habitats, identify migration patterns, and monitor ecosystems, they have rarely been used to understand aquatic species. The US Army Corps of Engineers is working with the Pacific Northwest Laboratory and other government agencies to exploit GIS technology for improving the survival of threatened and endangered salmon in the Snake River in the states of Washington, Oregon, and Idaho. The customized GIS will be used to map the physical environment of the river, to map the current biological environment, and to analyze potential impacts to both of these environments from several mitigation options. Data in both digital and textual formats have been obtained from scientists across the Pacific Northwest who are analyzing the habitats, limnology, and hydrology of the Snake River. The mitigation options focus on studying the effects of lowering the reservoirs of the Snake River in an effort to speed juvenile salmon towards the ocean. The hypothesis being examined is that faster juvenile salmon travel to the ocean may result in higher juvenile survival and greater smolt-to-adult return ratios. Lowering the Snake River reservoirs is expected to have a variety of impacts to the physical environment, including changes to water velocity, temperature, dissolved gasses, and turbidity. Each of these potential changes is being examined to assess their effects on the surrounding terrestrial wildlife and on both the anadromous and resident fish of the Snake River.
Evans, B.J.; Gordon, J.V.; Mavros, W.V.; Perry, E.M. [Pacific Northwest Lab., Richland, WA (United States); Pinney, C. [US Army Corps of Engineers, Walla Walla, WA (United States)
Decision Level Data Fusion for Routing of Documents in the TREC3 Context: A Best Case Analysis of Worst Case Results.
Decision Level Data Fusion for Routing of Documents in the TREC3 Context: A Best Case Analysis of decision level data fusion in the routing (filtering) task of the Text Retrieval Conference is summarized and analyzed. The relatively poor results of an approach in which a specific fusion rule was selected for each
An evolutionary framework for routing protocol analysis in wireless sensor networks
Wireless Sensor Networks (WSNs) are widely adopted for applications ranging from surveillance to environmental monitoring. While powerful and relatively inexpensive, they are subject to behavioural faults which make them unreliable. Due to the complex ... Keywords: anomaly detection, evolutionary algorithms, network efficiency, routing protocols, wireless sensor networks
Doina Bucur; Giovanni Iacca; Giovanni Squillero; Alberto Tonda
Comparing ingress and egress detection to secure interdomain routing: An experimental analysis
The global economy and society increasingly depends on computer networks linked together by the Internet. The importance of computer networks reaches far beyond the telecommunications sector since they have become a critical factor for many other crucial ... Keywords: BGP security, Inter-domain routing, adoption, policy
Christoph Goebel; Dirk Neumann; Ramayya Krishnan
Spatial Econometric Analysis of Agglomeration Economies Associated with the Geographical Distribution of the U.S. Biotech Industry.
??This dissertation analyzed spatial agglomeration economies associated with the geographical distribution of the U.S. biotech industry. Three location issues associated with the biotech industry were� (more)
Sambidi, Pramod Reddy
Analysis of the Black-Capped Vireo habitat at Kickapoo Caverns State Park, Texas using a Geographic Information System
A Geographic Information System (GIS) database was developed for Y,-ickapoo Cavern State Park, Tx. The digital database was used to characterize the Black-Capped Vireo ( Vireo Attricapillus Woodhouse) breeding habitat, and to produce a potential habitat map for the area. Relationships between Black-Capped Vireo (BCV) locations and topographic variables (slope and aspect) were investigated. When a chi-square test led to the rejection of a hypothesis inferring that a set of observations (territories) do not follow an expected occurrence pattern, a Bonferroni statistic test was used to evaluate preference or avoidance of a given slope or aspect category. In the park, BCV habitat is located on gentle slopes (012%); however, the analysis did not reveal a strong association between BCV location and slope exposure (aspect). For six-sub-landscapes, with different percentages of BCV suitable habitat, a modified fractal dimension was computed inside the GIS. This fractal dimension calculation describes diversity of a landscape, accounting for shape, patch juxtaposition, and eveness. GIS analysis helped in the proposition of camping sites and hiking trails to minimize the impact on BCV habitat and others preserved areas in the park.
Castiaux, Nathalie
Crossing Active Faults on the Sakhalin II Onshore Pipeline Route: Pipeline Design and Risk Analysis
Twin oil (20 and 24 inch) and gas (20 and 48 inch) pipeline systems stretching 800 km are being constructed to connect offshore hydrocarbon deposits from the Sakhalin II concession in the North to an LNG plant and oil export terminal in the South of Sakhalin island. The onshore pipeline route follows a regional fault zone and crosses individual active faults at 19 locations. Sakhalin Energy, Design and Construction companies took significant care to ensure the integrity of the pipelines, should large seismic induced ground movements occur during the Operational life of the facilities. Complex investigations including the identification of the active faults, their precise location, their particular displacement values and assessment of the fault kinematics were carried out to provide input data for unique design solutions. Lateral and reverse offset displacements of 5.5 and 4.5 m respectively were determined as the single-event values for the design level earthquake (DLE) - the 1000-year return period event. Within the constraints of a pipeline route largely fixed, the underground pipeline fault crossing design was developed to define the optimum routing which would minimize stresses and strain using linepipe materials which had been ordered prior to the completion of detailed design, and to specify requirements for pipe trenching shape, materials, drainage system, etc. Detailed Design was performed with due regard to actual topography and to avoid the possibility of the trenches freezing in winter, the implementation of specific drainage solutions and thermal protection measures.
Mattiozzi, Pierpaolo [Snamprogetti-Saipem, Via Toniolo, 1, 61032 Fano (Italy); Strom, Alexander [Institute of Geospheres Dynamics, Leninskiy Avenue, 38, Building 1, 119334, Moscow (Russian Federation)
Crossing Active Faults on the Sakhalin II Onshore Pipeline Route: Analysis Methodology and Basic Design
Twin oil (20 and 24 inch) and gas (20 and 48 inch) pipeline systems stretching 800 km are being constructed to connect offshore hydrocarbon deposits from the Sakhalin II concession in the North to an LNG plant and oil export terminal in the South of Sakhalin island. The onshore pipeline route follows a regional fault zone and crosses individual active faults at 19 locations. Sakhalin Energy, Design and Construction companies took significant care to ensure the integrity of the pipelines, should large seismic induced ground movements occur during the Operational life of the facilities. Complex investigations including the identification of the active faults, their precise location, their particular displacement values and assessment of the fault kinematics were carried out to provide input data for unique design solutions. Lateral and reverse offset displacements of 5.5 and 4.5 m respectively were determined as the single-event values for the design level earthquake (DLE)--the 1000-year return period event. Within the constraints of a pipeline route largely fixed, the underground pipeline fault crossing design was developed to define the optimum routing which would minimize stresses and strain using linepipe materials which had been ordered prior to the completion of detailed design, and to specify requirements for pipe trenching shape, materials, drainage system, etc. This Paper describes the steps followed to formulate the concept of the special trenches and the analytical characteristics of the Model.
Vitali, Luigino [Snamprogetti-Saipem, Via Toniolo, 1, 61032 Fano, Luigino (Italy); Mattiozzi, Pierpaolo [Snamprogetti-Saipem, Via Toniolo, 1, 61032 Fano (Italy)
Bird Diversity, Birdwatching Tourism and Conservation in Peru: A Geographic Analysis
In the face of the continuing global biodiversity loss, it is important not only to assess the need for conservation, through e.g. gap analyses, but also to seek practical solutions for protecting biodiversity. Environmentally and socially sustainable tourism can be one such solution. We present a method to spatially link data on conservation needs and tourism-based economic opportunities, using bird-related tourism in Peru as an example. Our analysis highlighted areas in Peru where potential for such projects could be particularly high. Several areas within the central and northern Andean regions, as well as within the lowland Amazonian regions of Madre de Dios and Loreto emerge as promising for this type of activity. Mechanisms to implement conservation in these areas include e.g. conservation and ecotourism concessions, private conservation areas, and conservation easements. Some of these mechanisms also offer opportunities for local communities seeking to secure their traditional land ownership and use rights. (Spanish language abstract, Abstract S1).
Liisa Puhakka; Matti Salo; Ilari E. S��ksj�rvi
Geographically Based Infrastructure Margo Melendez & Keith Parks
Diagram Geographically-based Infrastructure Analysis GIS Transportation Technologies & Systems Electric resulting H2 demand and changing demand Estimate infrastructure needs and usage Predict transition
Photovoltaic Geographical Information System | Open Energy Information
Open Energy Info (EERE)
Photovoltaic Geographical Information System Photovoltaic Geographical Information System Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Geographical Information System Focus Area: Renewable Energy Topics: Opportunity Assessment & Screening Website: re.jrc.ec.europa.eu/pvgis/ Equivalent URI: cleanenergysolutions.org/content/photovoltaic-geographical-information Language: English Policies: Deployment Programs DeploymentPrograms: Demonstration & Implementation This tool provides a geographical inventory of solar energy resources and an assessment of the electricity generation from photovoltaic systems in Europe, Africa, and southwest Asia. The tools allows for analysis of the technical, environmental, and socio-economic factors of solar electricity generation. Users may access maps and posters generated using the tool, as
Routing Policy System Replication
The RIPE database specifications and RPSL define languages used as the basis for representing information in a routing policy system. A repository for routing policy system information is known as a routing registry. A routing registry provides a means ...
C. Villamizar; C. Alaettinoglu; R. Govindan; D. Meyer
Route Type Determination Analysis
According to the 2009 National Household Travel Survey 44.4 percent of all miles travelled by Americans in 2009 (including airplanes, trains, boats, golf carts, subways, bikes, etc.) were travelled in cars. If vans, SUV's and pickup trucks are included, that level increases to 86 percent. We do a lot of travelling on the road in personal vehicles - it's important to be able to understand how we get there and how to rate the fuel economy of our trips. An essential part of this is knowing how to decide if a trip is a city or highway trip.
Brett Stone
Location-aware routing protocol with dynamic adaptation of request zone for mobile ad hoc networks
One possibility direction to assist routing in Mobile Ad Hoc Network (MANET) is to use geographical location information provided by positioning devices such as global positioning systems (GPS). Instead of searching the route in the entire network blindly, ... Keywords: GPS, MANET, location-aware, position-based, routing protocol
Tzay-Farn Shih; Hsu-Chun Yen
Learning and transferring geographically weighted regression trees across time
The Geographically Weighted Regression (GWR) is a method of spatial statistical analysis which allows the exploration of geographical differences in the linear effect of one or more predictor variables upon a response variable. The parameters of this ...
Annalisa Appice; Michelangelo Ceci; Donato Malerba; Antonietta Lanza
Environmental geographic information system.
This document describes how the Environmental Geographic Information System (EGIS) was used, along with externally received data, to create maps for the Site-Wide Environmental Impact Statement (SWEIS) Source Document project. Data quality among the various classes of geographic information system (GIS) data is addressed. A complete listing of map layers used is provided.
Peek, Dennis; Helfrich, Donald Alan; Gorman, Susan
Whirlpool routing for mobility
We present the Whirlpool Routing Protocol (WARP), which efficiently routes data to a node moving within a static mesh. The key insight in WARP's design is that data traffic can use an existing routing gradient to efficiently probe the topology, repair ... Keywords: collection protocol, mobile routing, sensor network
Jung Woo Lee; Branislav Kusy; Tahir Azim; Basem Shihada; Philip Levis
Routing Discussion Paper
ROUTING ISSUES RELATED TO ROUTING ISSUES RELATED TO U.S. DEPARTMENT OF ENERGY RADIOACTIVE MATERIALS TRANSPORTATION: DISCUSSION AND RECOMMENDATIONS PREPARED BY THE ROUTING TOPIC GROUP OF THE TRANSPORTATION EXTERNAL COORDINATION WORKING GROUP APRIL 1998 (a) Routing Issues Related to U.S. Department of Energy Radioactive Materials Transportation: Discussion and Recommendations Table of Contents I. Introduction ........................................................................................................................................ 1 II. Assumptions for Planning Purposes..................................................................................................... 1 III. The Current Routing Regulatory Structure and Its Implications...........................................................
Geographic Area Month
Gasoline and Diesel Fuel Update (EIA)
Fuels by PAD District and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month No. 1 Distillate No. 2 Distillate a No. 4 Fuel b Sales to End Users Sales for...
Sections / Geographical Regions Information
AOCS Sections provide a local forum for fats and oils professionals. Building a Stronger Global Association Sections / Geographical Regions Information Divisions achievement agricultural analytical application award awards biotechnology detergents
Geographic Gossip: Efficient Averaging for Sensor Networks
Gossip algorithms for distributed computation are attractive due to their simplicity, distributed nature, and robustness in noisy and uncertain environments. However, using standard gossip algorithms can lead to a significant waste in energy by repeatedly recirculating redundant information. For realistic sensor network model topologies like grids and random geometric graphs, the inefficiency of gossip schemes is related to the slow mixing times of random walks on the communication graph. We propose and analyze an alternative gossiping scheme that exploits geographic information. By utilizing geographic routing combined with a simple resampling method, we demonstrate substantial gains over previously proposed gossip protocols. For regular graphs such as the ring or grid, our algorithm improves standard gossip by factors of $n$ and $\\sqrt{n}$ respectively. For the more challenging case of random geometric graphs, our algorithm computes the true average to accuracy $\\epsilon$ using $O(\\frac{n^{1.5}}{\\sqrt{\\log ...
Dimakis, Alexandros G; Wainwright, Martin J
Network Routing Capacity
We define the routing capacity of a network to be the supremum of all possible fractional message throughputs achievable by routing. We prove that the routing capacity of every network is achievable and rational, we present an algorithm for its computation, and we prove that every non-negative rational number is the routing capacity of some network. We also determine the routing capacity for various example networks. Finally, we discuss the extension of routing capacity to fractional coding solutions and show that the coding capacity of a network is independent of the alphabet used.
Jillian Cannons; Randall Dougherty; Christopher Freiling; Kenneth Zeger
Network sensitivity to geographical configuration
Gravitational wave astronomy will require the coordinated analysis of data from the global network of gravitational wave observatories. Questions of how to optimally configure the global network arise in this context. We have elsewhere proposed a formalism which is employed here to compare different configurations of the network, using both the coincident network analysis method and the coherent network analysis method. We have constructed a network model to compute a figure-of-merit based on the detection rate for a population of standard-candle binary inspirals. We find that this measure of network quality is very sensitive to the geographic location of component detectors under a coincident network analysis, but comparatively insensitive under a coherent network analysis.
Antony C Searle; Susan M Scott; David E McClelland
End-to-end routing behavior in the internet
The large-scale behavior of routing in the Internet has gone virtually without any formal study, the exception being Chinoy's analysis of the dynamics of Internet routing information [Ch93]. We report on an analysis of 40,000 end-to-end route measurements ...
Vern Paxson
End-to-end routing behavior in the Internet
Worst-Case optimal and average-case efficient geometric ad-hoc routing
In this paper we present GOAFR, a new geometric ad-hoc routing algorithm combining greedy and face routing. We evaluate this algorithm by both rigorous analysis and comprehensive simulation. GOAFR is the first ad-hoc algorithm to be both asymptotically ... Keywords: ad-hoc networks, face routing, geometric routing, network connectivity, performance, routing, simulation, wireless communication
Fabian Kuhn; Rogert Wattenhofer; Aaron Zollinger
Geographic Information Systems: Status and Strategies for Supporting...
will focus on the use of one of these technologies, Geographic Information Systems (GIS). At the National Renewable Energy Laboratory, GIS is used to support analysis...
A model of onion routing with provable anonymity
Onion routing is a scheme for anonymous communication that is designed for practical use. Until now, however, it has had no formal model and therefore no rigorous analysis of its anonymity guarantees. We give an IO-automata model of an onion-routing ... Keywords: anonymity, onion routing, privacy, security
Joan Feigenbaum; Aaron Johnson; Paul Syverson
Statistical behaviors of mobile agents in network routing
Mobile agent-based network routing is a new technique for routing in large-scale networks. An analysis of the searching activity and population growth of mobile agents is important for improving performance in agent-driven networks. In this paper, we ... Keywords: Mobile agents, Population distribution, Probability of success, Routing
Wenyu Qu; Keqiu Li; Masaru Kitsuregawa; Weilian Xue
Geographic signatures for semantic retrieval
Geographic Information Retrieval (GIR) systems rely on the identification and disambiguation of place names in documents to determine the region about which they are relevant. The place names are mapped into geographic concepts and used to assign an ... Keywords: NER, conditional random fields, geographic information retrieval, semantic similarity
David S. Batista; M�rio J. Silva; Francisco M. Couto; Bibek Behera
Multi-VPN optimization for scalable routing via relaying
Enterprise networks are increasingly adopting Layer-3 multiprotocol label switching (MPLS) virtual private network (VPN) technology to connect geographically disparate locations. The any-to-any direct connectivity model of this technology is causing ... Keywords: measurement, optimization, routing, virtual private network (VPN)
MohammadHossein Bateni; Alexandre Gerber; MohammadTaghi Hajiaghayi; Subhabrata Sen
MANET Routing with Provably Low Complexity Through Constant Density Clustering and Route Request Broadcast
As mobile ad hoc networks (MANETs) are emerging as important components in critical and large-scale applications, it is crucial to develop MANET routing mechanisms with provably low complexity. In this paper, we give a tutorial overview of the efficient ... Keywords: 1-hop clustering, algorithm/protocol design and analysis, message complexity, routing protocol, scalability, time complexity, wireless mobile ad hoc network
Hyo-Sik Yang; Luke Ritchie; Andr�a W. Richa; Martin Reisslein
Geographic Information System (Monaster And Coolbaugh, 2007)...
Geographic Information System (Monaster And Coolbaugh, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System...
The Geographic Information Systems Laboratory
they are relational databases linked to geographic features that help users better query and visualize relationships among data and make those relationships easier to present....
Laboratory Shuttle Bus Routes: Blue Route
Blue Route Map (On-Site/Off-Site) Blue Route Map (On-Site/Off-Site) Scroll down or click here for schedule ↓ Printable Map Blue Route map Blue Route Schedule Effective May 3, 2013 Text Box: BLUE SHUTTLE SCHEDULE BLUE Route # 65 DOWNHILL BART 65 UPHILL 62/66 1 6:20 AM 6:30 AM 6:40 AM 6:52 AM 2 6:30 AM 6:40 AM 6:50 AM 7:02 AM 3 6:40 AM 6:50 AM 7:00 AM 7:12 AM 4 6:50 AM 7:00 AM 7:10 AM 7:22 AM 1 7:04 AM 7:16 AM 7:28 AM 7:40 AM 2 7:16 AM 7:28 AM 7:40 AM 7:52 AM 3 7:28 AM 7:40 AM 7:52 AM 8:04 AM 4 7:40 AM 7:52 AM 8:04 AM 8:16 AM 1 7:52 AM 8:04 AM 8:16 AM 8:28 AM 2 8:04 AM 8:16 AM 8:28 AM 8:40 AM 3 8:16 AM 8:28 AM 8:40 AM 8:52 AM 4 8:28 AM 8:40 AM 8:52 AM 9:04 AM 1 8:40 AM 8:52 AM 9:04 AM 9:16 AM 2 8:52 AM 9:04 AM 9:16 AM 9:28 AM 3 9:04 AM 9:16 AM 9:28 AM 9:40 AM 4 9:16 AM 9:28 AM 9:40 AM 9:52 AM 1 9:28 AM 9:40 AM 9:52 AM 10:04 AM 2 9:40 AM 9:52 AM 10:04 AM 10:16 AM 3 9:52 AM 10:04 AM
Modeling Routing Overhead Generated by Wireless Reactive Routing Protocols
In this paper, we have modeled the routing over- head generated by three reactive routing protocols; Ad-hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) and DYnamic MANET On-deman (DYMO). Routing performed by reactive protocols consists of two phases; route discovery and route maintenance. Total cost paid by a protocol for efficient routing is sum of the cost paid in the form of energy consumed and time spent. These protocols majorly focus on the optimization performed by expanding ring search algorithm to control the flooding generated by the mechanism of blind flooding. So, we have modeled the energy consumed and time spent per packet both for route discovery and route maintenance. The proposed framework is evaluated in NS-2 to compare performance of the chosen routing protocols.
Javaid, Nadeem; Javaid, Akmal; Malik, Shahzad A
Geospatial Products and Techniques at the Center for Transportation Analysis
This paper highlights geospatial science-related innovations and developments conducted by the Center for Transportation Analysis (CTA) at the Oak Ridge National Laboratory. CTA researchers have been developing integrated inter-modal transportation solutions through innovative and cost-effective research and development for many years. Specifically, this paper profiles CTA-developed Geographic Information System (GIS) products that are publicly available. Examples of these GIS-related products include: the CTA Transportation Networks; GeoFreight system; and the web-based Multi-Modal Routing Analysis System. In addition, an application on assessment of railroad Hazmat routing alternatives is also discussed.
Chin, Shih-Miao [ORNL; Hwang, Ho-Ling [ORNL; Peterson, Bruce E [ORNL
Department of Defense report on the merit-review process for competitive selection of university research projects and an analysis of the potential for expanding the geographic distribution of research for the committees on appropriations, United States Congress
This report responds to the Committee on Conference request, DoD Appropriations Act, 1987 as set forth in the following. With the establishment of the University Research Initiative in fiscal year 1986 and rising funds for the Strategic Defense Initiative, the Department of Defense's investment in university-based research is increasing. Consequently, the appropriations committees need to ensure that the peer-review process for the allocation of university funding is working effectively, and that mechanisms are in pace to broaden the base of DoD university research commensurate with these increasing resources. Therefore, the conferees direct the Department of Defense to submit a report to the appropriations committees by March 1, 1987, which (1) explains in detail the current peer-review process in a step-by-step fashion; (2) explains current participants in this process, including peer-review panels, boards, or conferences, and how such peer reviewers are evaluated and chosen; and (3) an analysis of the potential for expanding the research base into geographical areas which at the present time receive little defense-related university funding. This report explains DoD's merit-review process and the participants in that process and also describes the current distribution of DoD research funding to universities and the potential for geographic expansion.
Route guidance information for elderly passengers: route naming methods
The effect of bus route names on elderly transit riders' route-finding performance was investigated. A survey of public transit companies indicated that most identify routes with names and numbers, plus color coding, and that most route names correspond to the streets on which the routes travel or to the route's destinations. A survey of college undergraduate students indicated a preference for route names that included "North", "South", "East", or "West" to indicate the area of the city in which a route travels. The maps and timetables from the Vancouver, Washington bus system were used to test trip-planning performance; this system was selected because (1) its map and timetable package met many of the criteria in previous literature for ease of use and (2) Vancouver is an unfamiliar city to most residents of Bryan-College Station, Texas, where this study was conducted. Two versions of the materials were prepared; "North", "South", etc. were added to the bus route names in one version of the materials. Thirty-two Bryan-College Station residents, aged 55 years and older, were each given one version of the route guidance materials and asked to plan three trips on the bus using those materials. No significant difference in trip-planning accuracy or speed was realized between the two groups of test participants. Very few participants used route names to select the routes they needed, relying instead on route numbers and colors. On the questionnaire which followed the trip-planning exercise, participants ranked route names as the least helpful route-finding tool, below color coding and route numbers. Problems encountered by participants during the trip-planning process and their comments and suggestions indicate that color coding, map detail and the addition of map use examples and/or instructions may be important issues for future investigation.
Higgins, Laura Lynne
Geographic Information Science and Technology | ornl.gov
High Resolution Population and Social Dynamics Critical Infrastructure Data modeling Population-Infrastructure Dependency Spatiotemporal Data Mining and Uncertainty Analysis Machine Learning and Pattern Recognition Participatory Sensing and Volunteered Geographic Information High Performance Geocomputation and Visualization Cyber GIS Emerging Architectures for Geocomputation Energy Assurance Climate Extremes and Impact on Infrastructures Geocomputation for Transportation Emergency Preparedness and Response Quantum Information Science Supercomputing and Computation Home | Science & Discovery | Supercomputing and Computation | Research Areas | Geographic Information Science and Technology SHARE Geographic Information Science and Technology Oak Ridge National Laboratory has been a pioneer in the research,
Geographic Information System At International Geothermal Area, Indonesia
International Geothermal Area, Indonesia International Geothermal Area, Indonesia (Nash, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At International Geothermal Area Indonesia (Nash, Et Al., 2002) Exploration Activity Details Location International Geothermal Area Indonesia Exploration Technique Geographic Information System Activity Date Usefulness not indicated DOE-funding Unknown Notes GIs also facilitates grid data (raster) analysis and visualization. For example, a raster GIs layer, derived from an enhanced Landsat 7 Thematic Mapper (TM) image of the Karaha-Telaga Bodas area, Indonesia, is shown in Figure 2. References Gregory D. Nash, Christopher Kesler, Michael C. Adam (2002) Geographic Information Systems- Tools For Geotherm Exploration, Tracers
Fair Coalitions for Power-Aware Routing in Wireless Networks
Several power-aware routing schemes have been developed for wireless networks under the assumption that nodes are willing to sacrifice their power reserves in the interest of the network as a whole. But, in several applications of practical utility, ... Keywords: Wireless communication, algorithm design and analysis, energy-aware systems and routing.
Ratul K. Guha; Carl A. Gunter; Saswati Sarkar
Performance Enhanced AODV Routing Protocol Security in Mobile Ad-Hoc Networks
With the emergence of mobile ad-hoc networks, more users desire connectivity regardless of geographic location. MANETs are a promising technology in terms of the applications in the military, emergency situations, and general daily life activities. Various ... Keywords: Ad hoc On-Demand Distance Vector Routing AODV, Black-hole Attack, Denial-of-Service Attack, Mobile Ad-hoc Networks MANETs, Routing Protocols
Raees Khan ShahSani, Muhammad Bakhsh, Amjad Mahmood
An Indirect Route for Ethanol Production
The ZeaChem indirect method is a radically new approach to producing fuel ethanol from renewable resources. Sugar and syngas processing platforms are combined in a novel way that allows all fractions of biomass feedstocks (e.g. carbohydrates, lignins, etc.) to contribute their energy directly into the ethanol product via fermentation and hydrogen based chemical process technologies. The goals of this project were: (1) Collect engineering data necessary for scale-up of the indirect route for ethanol production, and (2) Produce process and economic models to guide the development effort. Both goals were successfully accomplished. The projected economics of the Base Case developed in this work are comparable to today's corn based ethanol technology. Sensitivity analysis shows that significant improvements in economics for the indirect route would result if a biomass feedstock rather that starch hydrolyzate were used as the carbohydrate source. The energy ratio, defined as the ratio of green energy produced divided by the amount of fossil energy consumed, is projected to be 3.11 to 12.32 for the indirect route depending upon the details of implementation. Conventional technology has an energy ratio of 1.34, thus the indirect route will have a significant environmental advantage over today's technology. Energy savings of 7.48 trillion Btu/yr will result when 100 MMgal/yr (neat) of ethanol capacity via the indirect route is placed on-line by the year 2010.
Eggeman, T.; Verser, D.; Weber, E.
Conceptions of geographic information systems (GIS) held by senior geography students in Queensland.
??Geographical Information Systems (GIS) represent one of the major contributions to spatial analysis and planning of the new technologies. While teachers and others have viewed� (more)
West, Bryan A.
Development of trail network model and web-based bikeway routing service system
A trail network data model provides an infrastructure that can be used for non-motorized transportation analysis and decision making. In this paper, a trail network model, TNM, is discussed, and a web-based bikeway routing service system, BikerRouting, ... Keywords: bikeway routing, trail network model
Qifeng Lu; Stephen Sedlock
Identifying location in indonesian documents for geographic information retrieval
Our research focuses on Geographic Information Retrieval for Indonesian documents. We constructed a Geographical Gazeeter for geographic locations based on information that we collected from the Geographic resources. We used the table to ... Keywords: geographic information retrieval
Mirna Adriani; Monica Lestari Paramita
Selfish Routing in Capacitated Networks
According to Wardrop's first principle, agents in a congested network choose their routes selfishly, a behavior that is captured by the Nash equilibrium of the underlying ...
Correa, Jose R.
Self-Adjustable Trust-Based Energy Efficient Routing for Smart Grid Systems
Smart Grid is the trend of next generation electrical power system which makes the power grid intelligent and energy efficient. It requires high level of network reliability to support two-way communication among electrical services, electrical units ... Keywords: Smart Grid, wireless mesh network, trust-based geographical routing, vulnearabilities and attacks, energy efficiency
Ming Xiang; Quan Bai; William Liu
A scalable wireless routing protocol secure against route truncation attacks
Wireless routing protocols allow transmitting nodes to have some knowledge of the topology in order to decide when to forward a packet (via broadcast) and when to drop it. Since a routing protocol forms the backbone of any network, it is a lucrative ...
Amitabh Saxena; Ben Soh
Laboratory Shuttle Bus Routes
Rear bike rack image Rear bike rack image The Laboratory provides shuttle bus services, contracted through MV Transportation Services. Routes run throughout its 200-acre facility, downtown Berkeley, local off-site facilities, UC Campus, Downtown Berkeley BART, and Rockridge BART stations. Shuttles offer free wifi onboard. Riders are asked to adhere to riding instructions. Active shuttle stops are marked with this sign: Bus sign image Shuttles run Monday through Friday, except Laboratory holidays. There is no weekend service. Special service for tours, group travel, etc. is available for a fee. All shuttles are equipped with Nextbus which uses GPS technology to enable riders to obtain real-time information on bus arrivals. Contact Bus Services at firstname.lastname@example.com or 510-486-4165 to provide
Node-Capacitated Ring Routing
We consider the node-capacitated routing problem in an undirected ring network along with its fractional relaxation, the node-capacitated multicommodity flow problem. For the feasibility problem, Farkas' lemma provides a characterization for general ... Keywords: half-integral flow, multicommodity flow, ring routing
Andr�s Frank; Bruce Shepherd; Vivek Tandon; Zolt�n V�gh
Geographic Resource Map of Frozen Pipe Probabilities
Energy.gov (U.S. Department of Energy (DOE))
Presentation slide details a resource map showing the probability of frozen pipes in the geographic United States.
Explicit Query Diversification for Geographical Information Retrieval
Explicit Query Diversification for Geographical Information Retrieval Davide Buscaldi1 and Paolo in the Geographical Information Retrieval task. This task represent an opportunity to take advantage of diversity not contain enough geographical data. 1 Introduction Diversity search is an Information Retrieval (IR
Paris-Sud XI, Université de
Autonomous routing algorithms for networks with wide-spread failures : a case for differential backlog routing
We study the performance of a differential backlog routing algorithm in a network with random failures. Differential Backlog routing is a novel routing algorithm where packets are routed through multiple paths to their ...
Khan, Wajahat Faheem
Geographically Based Hydrogen Demand & Infrastructure Analysis (Presentation)
Presentation given at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006, discusses potential future hydrogen demand and the infrastructure needed to support hydrogen vehicles.
Geographically Based Hydrogen Demand & Infrastructure Analysis
;7 Identify Key Policy Attributes · Air quality · State incentives · Clean Cities coalitions · Hybrid Medium State incentives Medium Clean Cities Coalitions Medium Air quality Medium Hybrid vehicle by Midwest Research Institute (MRI) under Contract No. DE-AC36- 99GO10337 with the U.S. Department of Energy
California at Santa Barbara, University of
Sperm whales are found throughout the world's oceans in deep waters to the edge of the ice at both poles (Leatherwood and Reeves 1983; Rice 1989; Whitehead 2002). Sperm whales throughout the world exhibit a geographic social structure where females and juveniles of both sexes occur in mixed groups and inhabit tropical and subtropical waters. Males, as they mature, initially form bachelor groups but eventually become more socially isolated and more wide-ranging, inhabiting temperate and polar waters as well (Whitehead 2003). Sperm whales were commercially hunted in the Caribbean Sea by American whalers from sailing vessels until the early 1900s
Puerto Rico; U. S. Virgin Isl; S Stock
Determining the Effectiveness of Incorporating Geographic Information Into Vehicle Performance Algorithms
This thesis presents a research study using one year of driving data obtained from plug-in hybrid electric vehicles (PHEV) located in Sacramento and San Francisco, California to determine the effectiveness of incorporating geographic information into vehicle performance algorithms. Sacramento and San Francisco were chosen because of the availability of high resolution (1/9 arc second) digital elevation data. First, I present a method for obtaining instantaneous road slope, given a latitude and longitude, and introduce its use into common driving intensity algorithms. I show that for trips characterized by >40m of net elevation change (from key on to key off), the use of instantaneous road slope significantly changes the results of driving intensity calculations. For trips exhibiting elevation loss, algorithms ignoring road slope overestimated driving intensity by as much as 211 Wh/mile, while for trips exhibiting elevation gain these algorithms underestimated driving intensity by as much as 333 Wh/mile. Second, I describe and test an algorithm that incorporates vehicle route type into computations of city and highway fuel economy. Route type was determined by intersecting trip GPS points with ESRI StreetMap road types and assigning each trip as either city or highway route type according to whichever road type comprised the largest distance traveled. The fuel economy results produced by the geographic classification were compared to the fuel economy results produced by algorithms that assign route type based on average speed or driving style. Most results were within 1 mile per gallon ({approx}3%) of one another; the largest difference was 1.4 miles per gallon for charge depleting highway trips. The methods for acquiring and using geographic data introduced in this thesis will enable other vehicle technology researchers to incorporate geographic data into their research problems.
Sera White
Geographic Information Systems RNL has a staff with extensive
. ORNL's Capabilities · Facilities and infrastructure management tools for space, maintenance, security maintenance of a highway system? · What is the best timing and routing means for evacuating the population Analysis Highway Safety Intelligent Transportation Systems Logistics Management Supply Chain Management
NEPA Review Routing Form
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North Composting Facility North Composting Facility Document Number: 299 Date of Routing: 12/01/2010 (after MJT review 11/30/2010) Name Reviewed Signature Forwarded To Forwarded Date ..... Date Anne Theriault 12/01/2010 tl-i.A 1 ../\ _/ ~ Steve Ames 12/01/2010 Steve Ames 12/01/2010 t.::}wtLA Email MJT 12/01/2010 Steve Ames 12/01/2010 .LZ..L.-1 Jeff Christiansen 12/01/2010 . ~ "/ / / Jeff Christiansen 12/01/2010 ,(J,U y n--(/' Mike Taylor 12/01/2010 '~"' --r7j I{ LLtJ I? JZ../2../!b Nr_4l./)5 w&ll. K .S T£ v C AIV\ cs 12../2.../ I 0 ( .e:.,~:,/t.; AM IF s I t-fi. /,,s (J.,..,.M ·/A,_r_, 7AYtoJ- IZ....(z../lq ~ .... / --r-?JY~e t<.j .z..j / e:> I#'~ y ../"'~--< 5Tt: \J C /1 J111 C 5 t<-./z_j/0
Optimization Online - The Freight Train Routing Problem
Jul 21, 2013 ... Abstract: We consider the following freight train routing problem (FTRP). Given is a transportation network with fixed routes for passenger trains�...
Selfish routing with side constraints
seminal work of Roughgarden and Tardos [6] on the price of anarchy for selfish routing. Their model ... pay more than a certain amount for gas or tolls. So far�...
Geographic Information System At Brady Hot Springs Area (Laney, 2005) |
Geographic Information System At Brady Hot Springs Geographic Information System At Brady Hot Springs Area (Laney, 2005) Exploration Activity Details Location Brady Hot Springs Area Exploration Technique Geographic Information System Activity Date Usefulness not indicated DOE-funding Unknown Notes InSAR Ground Displacement Analysis, Gary Oppliger and Mark Coolbaugh. This project supports increased utilization of geothermal resources in the Western United States by developing basic measurements and interpretations that will assist reservoir management and expansion at Bradys, Desert Peak and the Desert Peak EGS study area (80 km NE of Reno, Nevada) and will serve as a technology template for other geothermal fields. Raw format European Space Agency (ESA) ERS 1/2 satellite synthetic Aperture Radar (SAR) radar scenes acquired from 1992 through 2002 are being processed to
Geographical Distribution of Woody Biomass Carbon in Tropical Africa: An Geographical Distribution of Woody Biomass Carbon in Tropical Africa: An Updated Database for 2000, NDP-055b TABLES Please cite as: Gibbs, H.K. and S. Brown. 2007. Geographical Distribution of Woody Biomass Carbon in Tropical Africa: An Updated Database for 2000, NDP-055b. Available at [http://cdiac.ornl.gov/epubs/ndp/ndp055/ndp055b.html] from the Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A. Tables 1-4 Files in this numeric data package Variable formats of af_biomass.vat Variable formats of af_carbon.vat Variable formats of glc_subset_af.vat Variable formats of land_geo.vat Variable formats of pb_geo.vat Table 1. Files in this numeric data package File No. File name File size (bytes) File description
Definition: Geographic Information System | Open Energy Information
Geographic Information System Geographic Information System Jump to: navigation, search Dictionary.png Geographic Information System A GIS is an organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information[1] View on Wikipedia Wikipedia Definition References ↑ http://ciesin.columbia.edu/docs/005-331/005-331.html Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Geographic_Information_System&oldid=579407" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load)
Customized BGP Route Selection Using BGP/MPLS VPNs
Customized route selection mechanisms at ASBR Use Virtual Routing and Forwarding (VRF) instances to build
Bonaventure, Olivier
Modeling complexity of enterprise routing design
Enterprise networks often have complex routing designs given the need to meet a wide set of resiliency, security and routing policies. In this paper, we take the position that minimizing design complexity must be an explicit objective of routing design. ... Keywords: network complexity, routing design, top-down modeling
Xin Sun; Sanjay G. Rao; Geoffrey G. Xie
Zonal Rumor Routing for Wireless Sensor Networks
Routing algorithms for wireless sensor networks are constrained by power, memory and computational resources. Rumor Routing algorithm for sensor networks spreads theinformation of an event to other nodes in the network, thus enabling queries to discover ... Keywords: Sensor Network, Routing, Wireless, Rumor Routing
Tarun Banka; Gagan Tandon; Anura P. Jayasumana
Energy-Efficient Forwarding Strategies for Geographic Routing in Lossy Wireless Sensor Networks
no harvesting energy Environment Aware DC Step-Up Converterand solar energy info with host sensor node DC Step-Up
Karim Seada; Marco Zuniga; Ahmed Helmy; Bhaskar Krishnamachari
Energy-efficient geographic multicast routing for Sensor and Actuator Networks
The case in which the same information or events need to be sent from a single sensor node to multiple actuator nodes, is very common in many applications of Sensor and Actuator Networks (SANET). Sensors have very limited resources in terms of energy, ... Keywords: Energy efficient, Multicast, SANET, WSN
Juan A. Sanchez; Pedro M. Ruiz; Ivan Stojmenovic
Energy-efficient geographic routing in environmentally powered wireless sensor networks
Current and potential applications of wireless sensor networks (WSNs) include military sensing, physical security, traffic surveillance, and environment monitoring, etc. Due to the fact that WSNs are composed of a large number of low-cost but energy ...
Kai Zeng; Wenjing Lou; Kui Ren; Patrick J. Moran
National Carbon Sequestration Database and Geographical Information...
of this project is to construct a relational database management system with spatial query capabilities to evaluate the geographic distribution, physical characteristics,...
Geographic Information System At International Geothermal Area...
Indonesia (Nash, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At International Geothermal Area...
Performance evaluation of QoS-routing methods for IP-based multiservice networks
This paper provides a performance analysis of lost/delayed traffic and control load for various quality of service (QoS)-routing methods, which control a network's response to traffic demands and other stimuli, such as traffic overloads, link failures, ... Keywords: Enhance network scalability, Performance analysis, QoS Routing, Traffic overload
Gerald R Ash
Transportation Network Routing Models RNL has a staff with extensive
Analysis Geo-Spatial Information Tools Defense Transportation Energy Policy Analysis Environmental Policy is a representation of the North American railroad system that contains every active railroad route in the US, Canada are the effects of changes in transportation costs, demands, or policies? ORNL's Comparative Advantage
The Consistent Vehicle Routing Problem
In the small package shipping industry (as in other industries), companies try to differentiate themselves by providing high levels of customer service. This can be accomplished in several ways, including online tracking of packages, ensuring on-time delivery, and offering residential pickups. Some companies want their drivers to develop relationships with customers on a route and have the same drivers visit the same customers at roughly the same time on each day that the customers need service. These service requirements, together with traditional constraints on vehicle capacity and route length, define a variant of the classical capacitated vehicle routing problem, which we call the consistent VRP (ConVRP). In this paper, we formulate the problem as a mixed-integer program and develop an algorithm to solve the ConVRP that is based on the record-to-record travel algorithm. We compare the performance of our algorithm to the optimal mixed-integer program solutions for a set of small problems and then apply our algorithm to five simulated data sets with 1,000 customers and a real-world data set with more than 3,700 customers. We provide a technique for generating ConVRP benchmark problems from vehicle routing problem instances given in the literature and provide our solutions to these instances. The solutions produced by our algorithm on all problems do a very good job of meeting customer service objectives with routes that have a low total travel time.
Groer, Christopher S [ORNL; Golden, Bruce [University of Maryland; Edward, Wasil [American University
Geographic Information Systems- Tools For Geotherm Exploration, Tracers
Systems- Tools For Geotherm Exploration, Tracers Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geographic Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Details Activities (4) Areas (3) Regions (0) Abstract: Geographic information systems (GIS) are an underused resource that can help the geothermal industry in exploration, tracer analysis, infrastructure management, and the general distribution and use of data. GIS systems are highly customizable to specific user needs and can use entire corporate data sets through a visual interface. This paper briefly documents the use of GIS in specific examples of geothermal research at the
Contrasting wavelength-routed optical NoC topologies for power-efficient 3D-stacked multicore processors using physical-layer analysis
Optical networks-on-chip (ONoCs) are currently still in the concept stage, and would benefit from explorative studies capable of bridging the gap between abstract analysis frameworks and the constraints and challenges posed by the physical layer. This ...
Luca Ramini, Paolo Grani, Sandro Bartolini, Davide Bertozzi
Web Services for Geographic Information Systems
A surge in Web services and applications for geographic information systems (GISs) hasmade large spatial-data archives available over the Internet. Significant accomplishments in GIS Web services have led to several exemplifying map and image services ... Keywords: Web services, GIS, geographic information systems, Open Geospatial Consortium
Shengru Tu; Mahdi Abdelguerfi
Efficient spatial sampling of large geographical tables
Large-scale map visualization systems play an increasingly important role in presenting geographic datasets to end users. Since these datasets can be extremely large, a map rendering system often needs to select a small fraction of the data to visualize ... Keywords: data visualization, geographical databases, indexing, maps, query processing, spatial sampling
Anish Das Sarma; Hongrae Lee; Hector Gonzalez; Jayant Madhavan; Alon Halevy
Geographical DistributionGeographical Distribution of Biomass Carbon inof Biomass Carbon in
Geographical DistributionGeographical Distribution of Biomass Carbon inof Biomass Carbon of Biomass Carbon in Tropical Southeast Asian Forests: A Database Contributed by Sandra Brown,1 Louis R Geographical Distributions of Carbon in Biomass and Soils of Tropical Asian Forests, by S. Brown, L. R. Iverson
Adaptive Routing for Road Traffic
Several technologies for motorists ease their travel on today's congested roads. However, these services aren't linked to each other and using them while driving can be dangerously distracting. This article reports on an integrated system that uses congestion ... Keywords: routing, congestion, Trafficmaster, GPS, GSM.
John Fawcett; Peter Robinson
A comparison of routing sets for robust network design
compare the optimal capacity allocation costs for six routing sets: affine routing, ... made in the long term while the routing decisions depend on the realization of.
Fountain Valley Electric Carrier Route Vehicle Testing
13 miles per test. The distance of the 36 route tests ranged from 4 to 34 miles. Both miles driven and State-of- Charge (SOC) data was collected for only 28 of the route tests....
NIRA : a new Internet routing architecture
(cont.) mechanism, a user only needs to know a small region of the Internet in order to select a route to reach a destination. In addition, a novel route representation and packet forwarding scheme is designed such that a ...
Yang, Xiaowei, 1974-
ARM - SGP Geographic Information By Facility
Geographic Information By Facility Geographic Information By Facility SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Geographic Information By Facility Note: BF = Boundary Facility, EF = Extended Facility, and IF = Intermediate Facility Site Elevation (m) Lat./Long. Surface Type Anthony, Kansas: EF31 412 37.151 N -98.362W Pasture Ashton, Kansas: EF9 386 37.133 N 97.266 W Pasture Beaumont, Kansas: IF1 (Removed 4/12/2011) 478 37.626 N 96.538 W Rangeland Billings, OK (XSAPR Radar): IF4 330 36.579 N 97.364 W Cultivated Field Billings, OK (915 MHz RWP): IF9 291 36.476 N
State space representation of routing flexibility
This paper describes a state space representation for sequencing and routing flexibility in manufacturing systems. Routing flexibility is represented using five different stages as follows: (i) Precedence Graph of Operations; (ii) State Transition Graph ... Keywords: Flexible manufacturing systems, Routing flexibility, Sequencing flexibility, State space representation
Leonardo Rosa Rohde; Denis Borenstein
Building programmable routing service for sensor networks
Current routing services for sensor networks are application-specific. They are pre-configured into nodes, and thus have difficulty in adapting to different applications and network conditions. This paper describes a framework to build programmable routing ... Keywords: Energy saving, Parameterization, Programmable, Routing, Sensor networks
Yu He; Cauligi S. Raghavendra
A hierarchical model for BGP routing policies
BGP routing policies are mainly used by network operators to enforce business relationships between Autonomous Systems (AS), and to prefer some routes over others. In this paper, we propose a hierarchical policy model to express each policy at the most ... Keywords: bgp, network configuration, routing policies
Laurent Vanbever; Bruno Quoitin; Olivier Bonaventure
Xl: an efficient network routing algorithm
In this paper, we present a new link-state routing algorithm called Approximate Link state (XL) aimed at increasing routing efficiency by suppressing updates from parts of the network. We prove that three simple criteria for update propagation are sufficient ... Keywords: link-state, routing protocol
Kirill Levchenko; Geoffrey M. Voelker; Ramamohan Paturi; Stefan Savage
On inferring and characterizing internet routing policies
Border Gateway Protocol allows Autonomous Systems (ASs) to apply diverse routing policies for selecting routes and for propagating reachability information to other ASs. Although a significant number of studies have been focused on the Internet topology, ... Keywords: BGP, routing policies, traffic engineering
Feng Wang; Lixin Gao
On the tour partitioning heuristic for the unit demand capacitated vehicle routing problem
The tour partitioning heuristic for the vehicle routing problem assumes an unlimited supply of vehicles. If the number of vehicles is fixed, this heuristic may produce infeasible solutions. We modify the heuristic to guarantee feasibility in this situation ... Keywords: Analysis of algorithms, Heuristic algorithm, Vehicle routing problem
Herbert F. Lewis; Thomas R. Sexton
Optimal Routing and Assignment of Consultants for Energy Education, Inc.
Energy Education, Inc. EEI, a US management consulting firm, specializes in implementing energy conservation programs for schools, universities, and large churches. Similar to many consulting firms, travel expenses are among its largest budget items. ... Keywords: cluster analysis, consulting, employee assignment, vehicle routing
Junfang Yu; Randy Hoff
Making link-state routing scale for ad hoc networks
In this paper, we introduce a class of approaches that attempt to scale link-state routing by limiting the scope of link state update dissemination in space and over time. We present the first fundamental analysis of this generic class, which we call ...
C�sar A. Santiv��ez; Ram Ramanathan; Ioannis Stavrakakis
generalized costs Data: C : Set of customers to route (not including the depot 0v ) LLimit = initial number . The function k ( , )s R s orders the set of routes R from smallest to largest based on the number of customers per route and then returns a set of 1s routes with the least number of customers; e.g. k ( ,1)s R
Bertini, Robert L.
Spatial autocorrelation and red herrings in geographical ecology
2000) Red-shifts and red herrings in geographical ecology.autocorrelation and red herrings in geographical ecologygenerates �red herrings�, such that virtually all past
Diniz, JAF; Bini, L M; Hawkins, Bradford A.
Implications of Wide-Area Geographic Diversity for Short- Term...
Implications of Wide-Area Geographic Diversity for Short- Term Variability of Solar Power Title Implications of Wide-Area Geographic Diversity for Short- Term Variability of Solar...
Geographic Information System At Central Nevada Seismic Zone...
Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic...
Geographical Distribution of Biomass Carbon in Tropical Southeast Asian
Geographical Distribution of Biomass Carbon in Tropical Southeast Asian Geographical Distribution of Biomass Carbon in Tropical Southeast Asian Forests: A Database (NDP-068) DOI: 10.3334/CDIAC/lue.ndp068 data Data PDF PDF Appendix A is reprint of Brown et al. paper in Geocarto International, Vol. 8; copyright 1993 Geocarto International Centre and reprinted with kind permission from the publisher) image Contributors Sandra Brown1 Louis R. Iverson2 Anantha Prasad2 Department of Natural Resources and Environmental Sciences University of Illinois Urbana, Illinois 1Present address: Winrock International, Arlington, Virginia 2Present address: United States Forest Service, Northeast Research Station, Delaware, Ohio Prepared by Tammy W. Beaty, Lisa M. Olsen, Robert M. Cushman, and Antoinette L. Brenkert Carbon Dioxide Information Analysis Center
Geographic Information System At Cove Fort Area (Nash, Et Al., 2002) | Open
Nash, Et Al., 2002) Nash, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Cove Fort Area (Nash, Et Al., 2002) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Geographic Information System Activity Date Usefulness not indicated DOE-funding Unknown Notes An example, shown in Figure 1, shows results from the classification of big sagebrush (Artimesia tridentata) spectra, acquired over the Cove Fort-Sulphurdale, Utah thermal anomaly, in relation to geology References Gregory D. Nash, Christopher Kesler, Michael C. Adam (2002) Geographic Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And
Geographic Information System At Cove Fort Area - Vapor (Nash, Et Al.,
Nash, Et Al., Nash, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Cove Fort Area (Nash, Et Al., 2002) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Geographic Information System Activity Date Usefulness not indicated DOE-funding Unknown Notes An example, shown in Figure 1, shows results from the classification of big sagebrush (Artimesia tridentata) spectra, acquired over the Cove Fort-Sulphurdale, Utah thermal anomaly, in relation to geology References Gregory D. Nash, Christopher Kesler, Michael C. Adam (2002) Geographic Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management
Route profile analysis system and method
DOE Patents (OSTI)
A system for recording terrain profile information is disclosed. The system accurately senses incremental distances traveled by a vehicle along with vehicle inclination, recording both with elapsed time. The incremental distances can subsequently be differentiated with respect to time to obtain acceleration. The computer acceleration can then be used to correct the sensed inclination.
Mullenhoff, D.J.; Wilson, S.W.
Geographic Information System | Open Energy Information
Geographic Information System Geographic Information System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geographic Information System Details Activities (24) Areas (11) Regions (4) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Data Techniques Parent Exploration Technique: Data Techniques Information Provided by Technique Lithology: Any mapable information Stratigraphic/Structural: Any mapable information Hydrological: Any mapable information Thermal: Any mapable information Cost Information Low-End Estimate (USD): 70.007,000 centUSD 0.07 kUSD 7.0e-5 MUSD 7.0e-8 TUSD / hour Median Estimate (USD): 80.008,000 centUSD 0.08 kUSD 8.0e-5 MUSD 8.0e-8 TUSD / hour High-End Estimate (USD): 150.0015,000 centUSD
Geographic information retrieval: Modeling uncertainty of user's context
Geographic information retrieval (GIR) is nowadays a hot research issue that involves the management of uncertainty and imprecision and the modeling of user preferences and context. Indexing the geographic content of documents implies dealing with the ... Keywords: Bipolar criteria evaluation, Context dependent spatial query, Fuzzy aggregation operators, Geographic footprint, Geographic information retrieval, Soft constraint
Gloria Bordogna; Giorgio Ghisalberti; Giuseppe Psaila
"Strawman" Report: "Strawman" Report: RAIL ROUTING PRACTICES AND PROPOSED ALTERNATIVES Number Section Comment Response RTG-1-AAR SECTION II Safeguards Routing Regulations, Para. 2 The NRC has identified five types of route characteristics that receive special consideration when NRC staff review routes for approval pursuant to 10 CFR 73: (1) routes through highly populated areas; (2) routes that would place the shipment or escort vehicle in a significantly disadvantageous position (for example, tunnels which would prevent the escort vehicle from maintaining continuous surveillance of the shipment vehicle); [Note this assumes a highway chase vehicle for rail. We expect security for rail shipments to be on the train with the shipment, and not a chase vehicle. Chase vehicles has their own inherent
UFO: A Resilient Layered Routing Architecture
Conventional wisdom has held that routing protocols cannot achieve both scalability and high availability. Despite scaling relatively well, today�s Internet routing system does not react quickly to changing network conditions (e.g., link failures or excessive congestion). Overlay networks, on the other hand, can respond quickly to changing network conditions, but their reliance on aggressive probing does not scale to large topologies. The paper presents a layered routing architecture called UFO (Underlay Fused with Overlays), which achieves the best of both worlds by having the �underlay� provide explicit notification about network conditions to help improve the efficiency and scalability of routing overlays.
Yaping Zhu; Andy Bavier; Nick Feamster; Sampath Rangarajan; Jennifer Rexford
Large Neighborhood Search for LNG Inventory Routing
Feb 3, 2012 ... Large Neighborhood Search for LNG Inventory Routing. Vikas Goel (vikas.goel ** *at*** exxonmobil.com) Kevin Furman (kevin.c.furman ***at***�...
MIRPLib: A Maritime Inventory Routing Problem Library
Aug 28, 2013 ... Abstract: This paper presents a detailed description of a particular class of deterministic single product maritime inventory routing problems�...
Accuracy Assessments of Geographical Line Data Sets, the Case of the Digital Chart of the World
To be able to utilise geographical data for analysis, one should know something about the quality of the data. In present geographical data standardisation proposals (SDTS, CEN TC287), several aspects of geographical data quality have been described, such as lineage (data collection and processing history), spatial accuracy, attribute accuracy, completeness, logical consistency and currency. Methods for quantitative assessments of different aspects of spatial accuracy for data sets of linear geographical features, such as shape fidelity and positional accuracy are described. For these assessments, independent data sets of better (and preferrably known) accuracy will have to be used. In order to be able to do automatic assessments, data set completeness must be taken into consideration. The method has been applied for assessing the spatial accuracy for some themes of the Digital Chart of the World (DCW) (scale of original maps (ONCs): 1:1000000), using the Norwegian mapping authority's ...
H�vard Tveite; Sindre Langaas
Answering geographic questions with user generated content: experiences from the coal face
In this paper I discuss the use of user generated content as a new data source for exploring geographic questions, through two exemplars: the derivation of vernacular regions and trajectory analysis. By exploring the implications of various elements ... Keywords: metadata, trajectory analysis, uncertainty, user generated content, vernacular regions
Ross S. Purves
Hierarchical Routing over Dynamic Wireless Networks
Wireless network topologies change over time and maintaining routes requires frequent updates. Updates are costly in terms of consuming throughput available for data transmission, which is precious in wireless networks. In this paper, we ask whether there exist low-overhead schemes that produce low-stretch routes. This is studied by using the underlying geometric properties of the connectivity graph in wireless networks.
Tschopp, Dominique; Grossglauser, Matthias
An autonomic routing framework for sensor networks
Current routing services for sensor networks are often designed for specific applications and network conditions, thus have difficulty in adapting to application and network dynamics. This paper proposes an autonomic framework to promote the adaptivity ... Keywords: Autonomic routing, Feature functions, Monitoring policies, Sensor networks
Yu He; Cauligi S. Raghavendra; Steven Berson; Robert Braden
Jumping ant routing algorithm for sensor networks
Enterprises that may rely on critical equipments which are constantly moving around, for example, hospitals - need to ensure they can know the current location of vital but mobile assets. Besides, the sensor node on each device should inform us whether ... Keywords: ARAMA (Ant Routing Algorithm for Mobile Ad-hoc Networks), Ad-hoc, JARA (Jumping Ant Routing Algorithm), MANET
Wei-Ming Chen; Chung-Sheng Li; Fu-Yu Chiang; Han-Chieh Chao
Shortage leads to green route to olefins
A new study examines a green route to glycerol via ultraviolet irradiation of fats and vegetable oils that may lead to a biobased source of acrylic acid and long-chain olefins. Shortage leads to green route to olefins Publications aocs articles bo
Understanding slow BGP routing table transfers
Researchers and network operators often say that BGP table transfers are slow. Despite this common knowledge, the reasons for slow BGP transfers are not well understood. This paper explains BGP table transfer delays by combining BGP messages collected ... Keywords: bgp, route propagation, routing convergence
Zied Ben Houidi; Mickael Meulle; Renata Teixeira
Advanced Routing Worm and Its Security Challenges
Most well-known worms, such as Code Red, Slammer, Blaster, and Sasser, infected vulnerable computers by scanning the entire IPv4 address space. In this article, the authors present an advanced worm called the "routing worm," which implements two new ... Keywords: Network security, modeling, routing worm
Cliff C. Zou; Don Towsley; Weibo Gong; Songlin Cai
Best routes selection in international intermodal networks
This study focuses on one of the intermodal operational issues: how to select best routes for shipments through the international intermodal network. International intermodal routing is complicated by three important characteristics: (1) multiple objectives; ... Keywords: Economies of scale, Intermodal, Multicommodity, Multiobjective
Tsung-Sheng Chang
Cost of not splitting in routing: characterization and estimation
This paper studies the performance difference of joint routing and congestion control when either single-path routes or multipath routes are used. Our performance metric is the total utility achieved by jointly optimizing transmission rates using congestion ... Keywords: duality gap, multipath routing, performance gap, single-path routing, sparse representation, utility optimization
Meng Wang; Chee Wei Tan; Weiyu Xu; Ao Tang
All-to-all disjoint multipath routing using cycle embedding
In this paper, we evaluate the performance of disjoint multipath routing approaches for all-to-all routing in packet-switched networks with respect to packet overhead, path length, and routing table size. We develop a novel approach based on cycle embedding ... Keywords: All-to-all routing, Cycle embedding, Disjoint multipath routing
Sandeep K. Ahuja; Srinivasan Ramasubramanian
Highway and interline transportation routing models
The potential impacts associated with the transportation of hazardous materials are important issues to shippers, carriers, and the general public. Since transportation routes are a central characteristic in most of these issues, the prediction of likely routes is the first step toward the resolution of these issues. In addition, US Department of Transportation requirements (HM-164) mandate specific routes for shipments of highway controlled quantities of radioactive materials. In response to these needs, two routing models have been developed at Oak Ridge National Laboratory under the sponsorship of the U.S. Department of Energy (DOE). These models have been designated by DOE`s Office of Environmental Restoration and Waste Management, Transportation Management Division (DOE/EM) as the official DOE routing models. Both models, HIGHWAY and INTERLINE, are described.
Joy, D.S.; Johnson, P.E.
A Geographically Weighted Hedonic Pricing Model
Wind power is the most important renewable energy source in many countries today, characterized by a rapid and extensive diffusion since the 1990s. However, it has also triggered much debate with regard to the impact on landscape and vista. Therefore, siting processes of wind farm projects are often accompanied by massive public protest, because of visual and aural impacts on the surrounding area. These mostly negative consequences are often reflected in property values and house prices. The aim of this paper is to investigate the impact of wind farms on the surrounding property values by means of a geographically-weighted hedonic pricing model. By comparing the predictive performance of standard Ordinary Least Squares (OLS) regression models and Geographically Weighted Regression (GWR) models, we find that, mainly due to a local clustering bias, global OLS estimation is inadequate for capturing the impacts of wind farm proximity on
Yasin Sunak; Reinhard Madlener; Yasin Sunak; Reinhard Madlener; Y. Sunak; R. Madlener
The U Plant geographic zone (UPZ) occupies 0.83 square kilometers on the Hanford Site Central Plateau (200 Area). It encompasses the U Plant canyon (221-U Facility), ancillary facilities that supported the canyon, soil waste sites, and underground pipelines. The UPZ cleanup initiative coordinates the cleanup of the major facilities, ancillary facilities, waste sites, and contaminated pipelines (collectively identified as ''cleanup items'') within the geographic zone. The UPZ was selected as a geographic cleanup zone prototype for resolving regulatory, technical, and stakeholder issues and demonstrating cleanup methods for several reasons: most of the area is inactive, sufficient characterization information is available to support decisions, cleanup of the high-risk waste sites will help protect the groundwater, and the zone contains a representative cross-section of the types of cleanup actions that will be required in other geographic zones. The UPZ cleanup demonstrates the first of 22 integrated zone cleanup actions on the Hanford Site Central Plateau to address threats to groundwater, the environment, and human health. The UPZ contains more than 100 individual cleanup items. Cleanup actions in the zone will be undertaken using multiple regulatory processes and decision documents. Cleanup actions will include building demolition, waste site and pipeline excavation, and the construction of multiple, large engineered barriers. In some cases, different cleanup actions may be taken at item locations that are immediately adjacent to each other. The cleanup planning and field activities for each cleanup item must be undertaken in a coordinated and cohesive manner to ensure effective execution of the UPZ cleanup initiative. The UPZ zone cleanup implementation plan (ZCIP) was developed to address the need for a fundamental integration tool for UPZ cleanup. As UPZ cleanup planning and implementation moves forward, the ZCIP is intended to be a living document that will provide a focal point for integrating UPZ actions, including field cleanup activities, waste staging and handling, and post-cleanup monitoring and institutional controls.
Laboratory Shuttle Bus Routes: Potter St./JBEI Shuttle Bus Routes
Combined Routes & Schedules Blue Route Orange Route Rockridge Route Potter St./JBEI Route Combined Routes & Schedules Blue Route Orange Route Rockridge Route Potter St./JBEI Route Potter St./JBEI Map Scroll down or click here for schedule ↓ Printable Map | Printable Schedule Potter St/JBEI Route Potter St./JBEI Schedule Bus Service @ lbl.gov email link LBNL - POTTER ST/JBEI START - LBL STOP 65 CORY HALL SHATTUCK BART JCAP POTTER CFO JBEI SHATTUCK BART CORY HALL Depart on the 08's and 38's Depart on the 10's and 40's Depart on the 15's and 45's Depart on the 28's and 58's Depart on the 00's and 30's Depart on the 05's and 35's Depart on the 08's and 35's Depart on the 20's and 50's Depart on the 25's and 55's 1 8:08 AM 8:10 AM 8:15 AM 8:28 AM 8:30 AM 8:35 AM 8:38 AM 8:50 AM 8:55 AM 2 8:38 AM 8:40 AM 8:45 AM 8:58 AM 9:00 AM 9:05 AM 9:08 AM 9:20 AM 9:25 AM
Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al.,
2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes On the regional scale, we investigated the spatial relationship of known geothermal activity with: (1) the regional tendency of Quaternary fault orientations; (2) the direction of extensional strain; and (3) the magnitudoef fault-normal extensional strain. Item (1) is purely a structural analysis based on documented Quatemary faulting. Item (2) is purely an empirical strain-rate analysis, based on GPS station velocity
Geographic convergecast using mobile sink in wireless sensor networks
This paper presents a novel convergecast algorithm called, Virtual Circle Combined Straight Routing (VCCSR), which collects data in a wireless sensor network (WSN) using a mobile sink. Tree-based routing offers the shortest routes to deliver data, and ... Keywords: Clustering, Convergecast, Data collection, Mobile sink, Wireless sensor networks
Tzung-Shi Chen; Hua-Wen Tsai; Yu-Hsin Chang; Tzung-Cheng Chen
A bootstrapping approach for geographic named entity annotation
Geographic named entities can be classified into many sub-types that are useful for applications such as information extraction and question answering. In this paper, we present a bootstrapping algorithm for the task of geographic named entity annotation. ...
Seungwoo Lee; Gary Geunbae Lee
Geographic dispersion in teams : its history, experience, measurement, and change
This thesis begins with the simple argument that geographic dispersion has gone surprisingly unexamined despite its role as the domain-defining construct for geographically dispersed teams (a.k.a. "virtual teams"). The ...
O'Leary, Michael Boyer, 1969-
Routing Protocols and Concepts, CCNA Exploration Companion Guide
Routing Protocols and Concepts CCNA Exploration Companion Guide Routing Protocols and Concepts, CCNA Exploration Companion Guide is the official supplemental textbook for the Routing Protocols and Concepts course in the Cisco Networking Academy CCNA ...
Rick Graziani; Allan Johnson
Improving the interaction between overlay routing and traffic engineering
Overlay routing has been successful as an incremental method to improve Internet routing by allowing its own users to select their logical routing. In the meantime, traffic engineering (TE) are being used to reduce the whole network cost by adapting ...
Gene Moo Lee; Taehwan Choi
Volunteered Geographic Information High Performance Geocomputation and Visualization Cyber GIS Emerging Architectures for Geocomputation Energy Assurance Climate Extremes and...
Geographic Information System At Northern Basin & Range Region...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Blewitt, Et Al., 2003) Exploration...
Geographic Information System (Nash, Et Al., 2002) | Open Energy...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System (Nash, Et Al., 2002) Exploration Activity Details Location Unspecified...
Geographic Information System At Nw Basin & Range Region (Nash...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Nash & Johnson, 2003) Exploration Activity...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Nash & Johnson, 2003) Exploration Activity...
Global Routing in VLSI Design: Algorithms, Theory, and ...
Dec 15, 2010 ... The algorithm ensures that all routing demands are satisfied ...... does not lead to an increase in the maximum routing demand and in many.
Proactive techniques for correct and predictable Internet routing
The Internet is composed of thousands of autonomous, competing networks that exchange reachability information using an interdomain routing protocol. Network operators must continually reconfigure the routing protocols to ...
Feamster, Nicholas G. (Nicholas Greer), 1979-
Lagrangean Duality Applied on Vehicle Routing with Time Windows
Nov 6, 2001 ... Lagrangean Duality Applied on Vehicle Routing with Time Windows ... with the Vehicle Routing Problem with Time Windows (VRPTW).
Evaluation of virtual routing appliances as routers virtual environment.
??A virtual routing appliance is a system for the rapid, automated management and employment of virtual networks. Virtual routing appliances utilize virtual machines to enable� (more)
Al-Amoudi, Ahmed
DOE Office of Nuclear Energy Transportation Planning, Route Selection...
Office of Nuclear Energy Transportation Planning, Route Selection, and Rail Issues DOE Office of Nuclear Energy Transportation Planning, Route Selection, and Rail Issues...
Analyzing the effect of routing protocols on media access control protocols in radio networks
We study the effect of routing protocols on the performance of media access control (MAC) protocols in wireless radio networks. Three well known MAC protocols: 802.11, CSMA, and MACA are considered. Similarly three recently proposed routing protocols: AODV, DSR and LAR scheme 1 are considered. The experimental analysis was carried out using GloMoSim: a tool for simulating wireless networks. The main focus of our experiments was to study how the routing protocols affect the performance of the MAC protocols when the underlying network and traffic parameters are varied. The performance of the protocols was measured w.r.t. five important parameters: (i) number of received packets, (ii) average latency of each packet, (iii) throughput (iv) long term fairness and (v) number of control packets at the MAC layer level. Our results show that combinations of routing and MAC protocols yield varying performance under varying network topology and traffic situations. The result has an important implication; no combination of routing protocol and MAC protocol is the best over all situations. Also, the performance analysis of protocols at a given level in the protocol stack needs to be studied not locally in isolation but as a part of the complete protocol stack. A novel aspect of our work is the use of statistical technique, ANOVA (Analysis of Variance) to characterize the effect of routing protocols on MAC protocols. This technique is of independent interest and can be utilized in several other simulation and empirical studies.
Barrett, C. L. (Christopher L.); Drozda, M. (Martin); Marathe, A. (Achla); Marathe, M. V. (Madhav V.)
DOE HQ Shuttle Bus Route and Schedule
Shuttle Bus Route and Schedule Shuttle Bus Route and Schedule The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. Headquarters employees are reminded of the statutory provisions that authorize and limit the use of the shuttle bus service. Specific authority for the use of appropriated funds to pay for transportation for official purposes is contained in section 1344(a)(1) of Title 31, U.S. Code. Use of this transportation for any other purpose is
Slicing the Onion: Anonymous Routing Without PKI
Recent years have witnessed many proposals for anonymous routing in overlay peer-to-peer networks. The proposed protocols either expose the receiver and the message content, or require the overlay nodes to have public-private ...
Katti, Sachin
Hybrid vehicle-centric route guidance
This thesis proposes a hybrid route guidance system in which predictive guidance is generated in a centralized layer and revised in a reactive, decentralized layer that resides on-board the vehicle. This hybrid approach ...
Farver, Jennifer M. (Jennifer Margaret), 1976-
Energy Conversion Materials Through Chemical Synthesis Route
Conversion Materials Through Chemical Synthesis Route Speaker(s): Lionel Vayssieres Date: April 27, 2004 - 12:00pm Location: Bldg. 90 Seminar HostPoint of Contact: Samuel Mao The...
The Price of Atomic Selfish Ring Routing?
�Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 100080 , ... The ring topology is a fundamental topology that is frequently encountered in ...... [9] A. Czumaj, Selfish routing on the Internet, in Handbook of Scheduling:�...
Dynamic vehicle routing for robotic networks
Recent years have witnessed great advancements in the sciences and technology of autonomy, robotics and networking. This dissertation develops concepts and algorithms for dynamic vehicle routing (DVR), that is, for the ...
Pavone, Marco, Ph. D. Massachusetts Institute of Technology
Geographic Trends Among Same-Sex Couples in the US Census and the American Community Survey
Gates, Gary J
River Network Routing on the NHDPlus Dataset
The mapped rivers and streams of the contiguous United States are available in a geographic information system (GIS) dataset called National Hydrography Dataset Plus (NHDPlus). This hydrographic dataset has about 3 million river and water body ...
C�dric H. David; David R. Maidment; Guo-Yue Niu; Zong-Liang Yang; Florence Habets; Victor Eijkhout
Manufacturing Routes for Metallic Foams
Although an analysis by energy-dispersive x-ray analysis (EDX) yielded a ... well as general information on foams.20 There are two questions to be discussed in ... Beside some niche-market applications there is no real industrial application of�...
Landmark routing in ad hoc networks with mobile backbones
A Mobile Ad Hoc Network (MANET) is usually assumed to be homogeneous, where each mobile node shares the same radio capacity. However, a homogeneous ad hoc network suffers from poor scalability. Recent research has demonstrated its performance bottleneck through both theoretical analysis and simulation experiments and testbed measurements. This is further exacerbated by heavy routing overhead of ad hoc routing protocols when the network size is large. In this paper, we present a design methodology to build a hierarchical large-scale ad hoc network using different types of radio capabilities at different layers. In such a structure, nodes are first dynamically grouped into multi-hop clusters. Each group elects a cluster-head to be a backbone node (BN). Then higher-level links are established to connect the BNs into a backbone network. Following this method recursively, a multilevel hierarchical network can be established. Three critical issues are addressed in this paper. We first analyze the optimal number of BNs for a layer in theory. Then, we propose a stable and light overhead clustering scheme to deploy the BNs. Finally LANMAR routing is extended to operate the physical hierarchy efficiently. We show that the Hierarchical LANMAR (H-LANMAR) can incorporate and efficiently utilize backbone links to reach remote destinations (thus reducing the hop distance). Simulation results using GloMoSim confirm that our proposed schemes achieve good performance.
Kaixin Xu; Xiaoyan Hong; Mario Gerla
A secure alternate path routing in sensor networks
This paper presents a secure alternate path routing in sensor networks. Our alternate path scheme makes the routing protocol resilient in the presence of malicious nodes that launch selective forwarding attacks. SeRINS (a Secure alternate path Routing ... Keywords: Secure routing, Sensor network security
Suk-Bok Lee; Yoon-Hwa Choi
A Periodic Inventory Routing Problem at a Supermarket Chain
Albert Heijn, BV, a supermarket chain in the Netherlands, faces a vehicle routing and delivery scheduling problem once every three to six months. Given hourly demand forecasts for each store, travel times and distances, cost parameters, and various transportation ... Keywords: Inventory: inventory routing, Networks, matchings: application to inventory routing, Transportation, vehicle routing: algorithm and implementation
Vishal Gaur; Marshall L. Fisher
Towards a routing framework in ad hoc space networks
A routing framework called Space Gateway Routing (SGR) is proposed for routing through Autonomous Regions (ARs) in ad hoc space networks. SGR has two integral parts: External SGR (ESGR) and Interior SGR (ISGR). ESGR ... Keywords: ad hoc networks, autonomous regions, contact allocation, data delivery, inter-region message scheduling, remote control messages, space communications, space gateway routing, space missions, space networks
Chao Chen; Zesheng Chen
A survey on secure multipath routing protocols in WSNs
Routing protocols in wireless sensor networks (WSN) have been substantially investigated by researches. Most state-of-the-art surveys have focused on reviewing the different routing schemes that have been proposed for WSN and classifying them based on ... Keywords: Multipath routing, Secure multipath routing, Security, Wireless sensor networks
Eliana Stavrou; Andreas Pitsillides
Use of a Geographic Mapping Tool in Power Line Routing for RF Hazard Identification: A Feasibility Evaluation
Radiofrequency (RF) fields induce currents and voltages on conductive objects with the general finding that larger or longer or taller objects, such as power lines and tall cranes, can result in greater currents and voltages. Medium wave frequencies (MF) associated with operation of AM radio broadcast stations are particularly prone to induction of RF voltages on long and/or tall cables that present the potential for arcing to ground or personnel who may initiate contact with the conductor. MF includes t...
Ant Colony Optimization Based Droplet Routing Technique in Digital Microfluidic Biochip
Digital micro fluidic biochip $(DMFB)$ has gained much importance in recent times, which supports various on chip biological sample analysis. The analysis is performed on a two dimensional micro array. Significant researches are going on for high performance ... Keywords: Digital Microfluidic Biochip, ACO, Multi Objective Optimization, Droplet Routing Algorithm
Indrajit Pan; Parthasarathi Dasgupta; Hafizur Rahaman; Tuhina Samanta
En Route to the Clinic: Diagnostic Sequencing Applications Using the Ion Torrent ( 7th Annual SFAF Meeting, 2012)
Donna Muzny on "En route to the clinic: Diagnostic sequencing applications using the Ion Torrent" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.
Muzny, Donna [Baylor College of Medicine
NEPA COMPLIANCE SURVEY NEPA Review Routing Form
NEPA Review Routing Form NEPA Review Routing Form A ::opy of Routing: ~ I~ I a() II Namo Roviowod Signature Date (~~ Thaf I CUt 1 -f CJ./ W./11 ~ A /rt ...... "" . A-~ r;;;;I £1 "3 7i7 .-J;_~~· ~~ / ' I" - 4 ' . # / . - . 1 ?9 '1' l p /=-- Z-4-11 ,_, y~ -- - - - - - - - - ~ L- ·~~ ,....... ,_ ,.,.. ....... , "'t _,.., , ....... '" / / /1 /7/1....., ,..I\. / / I F r-Q V C. .L> I \ I I ..... Forwarded Forwarded To Date i-t l.tlbrub ~ r:H:.. ~rrr
Geographical Distribution of Biomass Carbon in Tropical Southeast...
APPENDIX A: REPRINT OF PERTINENT LITERATURE Brown, S., L. R. Iverson, A. Prasad, and D. Liu. 1993. Geographical distributions of carbon in biomass and soils of tropical Asian...
NETL: News Release - DOE Collaboration with National Geographic...
DOE Collaboration with National Geographic's JASON Project Yields Three CODiE Awards Curriculum for Middle School Students Explores Energy Challenges, Solutions Washington, DC -...
Geographic Information System At Fish Lake Valley Area (Deymonaz...
Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish Lake Valley Area Exploration Technique Geographic Information System Activity Date Usefulness useful...
Geographic Information System At Nevada Test And Training Range...
Page Edit History Facebook icon Twitter icon Geographic Information System At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL...
Geographical Information System-Based Decision Tool.pub
Safety Security Vehicle Technologies Research Brief A geographical information system (GIS) based decision support tool that enables transportation planners to carry out...
Geographic Information System At Nw Basin & Range Region (Coolbaugh...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Exploration...
Geographic Information System At Walker-Lane Transitional Zone...
Geographic Information System At Walker-Lane Transitional Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration...
Login | Sign Up Search Page Edit History Facebook icon Twitter icon Geographic Information System At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Jump to:...
Geographic Information System At Walker-Lane Transitional Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Walker-Lane Transitional Zone Region (Blackwell, Et Al., 2003)...
Geographic Information System At U.S. West Region (Williams ...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At U.S. West Region (Williams & Deangelo, 2008) Exploration Activity Details...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Exploration...
Geographic Information System At Nw Basin & Range Region (Blewitt...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity...
Geographic Information System At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique...
navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2)...
Geography-based structural analysis of the Internet
In this paper, we study some geographic aspects of the Internet. We base our analysis on a large set of geolocated IP hop-level session data (including about 300,000 backbone routers, 150 million end hosts, and 1 billion sessions) that we synthesized from a variety of different input sources such as US census data, computer usage statistics, Internet market share data, IP geolocation data sets, CAJDA's Skitter data set for backbone connectivity, and BGP routing tables. We use this model to perform a nationwide and statewide geographic analysis of the Internet. Our main observations are: (1) There is a dominant coast-to-coast pattern in the US Internet traffic. In fact, in many instances even if the end-devices are not near either coast, still the traffic between them takes a long detour through the coasts. (2) More than half of the Internet paths are inflated by 100% or more compared to their corresponding geometric straight-line distance. This circuitousness makes the average ratio between the routing distance and geometric distance big (around 10). (3) The weighted mean hop count is around 5, but the hop counts are very loosely correlated with the distances. The weighted mean AS count (number of ASes traversed) is around 3. (4) The AS size and the AS location number distributions are heavy-tailed and strongly correlated. Most of the ASes are medium sized and there is a wide variability in the geographic dispersion size (measured in terms of the convex hull area) of these ASes.
Kasiviswanathan, Shiva [Los Alamos National Laboratory; Eidenbenz, Stephan [Los Alamos National Laboratory; Yan, Guanhua [Los Alamos National Laboratory
Task Routing for Prediction Tasks Haoqi Zhang
Harvard SEAS Microsoft Research Cambridge, MA 02138, USA Redmond, WA 98052, USA {hq, yiling, parkes, Economics, Theory Keywords Scoring rules, task routing, social networks 1. INTRODUCTION Organizations rely is crucial for the suc- cess of an organization. Accomplishing a task may require the expertise of multiple
Chen, Yiling
Policy-driven routing management using CIM
Policy-based network management is intended to provide a system-wide and unified view of the network and its services and applications. This includes the combined management of network services as different as security, QoS or routing. However, while ...
F�lix J. Garc�a Clemente; Jes�s D. Jim�nez Re; Gregorio Mart�nez P�rez; Antonio F. G�mez Skarmeta
Large neighborhood search for LNG inventory routing
Liquefied Natural Gas (LNG) is steadily becoming a common mode for commercializing natural gas. Due to the capital intensive nature of LNG projects, the optimal design of LNG supply chains is extremely important from a profitability perspective. Motivated ... Keywords: LNG, Liquefied natural gas, Maritime inventory routing, Ship schedule optimization
Vikas Goel; Kevin C. Furman; Jin-Hwa Song; Amr S. El-Bakry
Region growing for multi-route cuts
We study a number of multi-route cut problems: given a graph G = (V, E) and connectivity thresholds k(u, v) on pairs of nodes, the goal is to find a minimum cost set of edges or vertices the removal of which ...
Siddharth Barman; Shuchi Chawla
Route planning with flexible edge restrictions
In this work, we explore a new type of flexible shortest-path query, in which the query can be dynamically parameterized to constrain the type of edges that may be included in the resulting shortest path (e.g., find the shortest path in a road network ... Keywords: Contraction Hierarchies, edge restrictions, flexible scenario, route planning, shortest paths
Robert Geisberger; Michael N. Rice; Peter Sanders; Vassilis J. Tsotras
Mitigating attacks against virtual coordinate based routing in wireless sensor networks
Virtual coordinate system (VCS) based routing provides a practical, efficient and scalable means for point-to-point routing in wireless sensor networks. Several VCS-based routing protocols have been proposed in the last few years, all assuming that nodes ... Keywords: beacon vector routing, routing, secure beacon vector routing, security, sensor network routing, virtual coordinate system
Jing Dong; Kurt E. Ackermann; Brett Bavar; Cristina Nita-Rotaru
A Case for Using MBMS in Geographical Michelle WETTERWALD
. The future mobile devices will bring to people smart healthcare, living, transportation and energy are spreading at a fast pace, from telephony to vertical applications such as healthcare, transportation or energy. In the case of transportation, their target is usually a limited geographical area. Geographical
Gesbert, David
NREL: Dynamic Maps, GIS Data, and Analysis Tools - Geographic...
crops. Lower 48 Solar Photovoltaics (PV) Collectors 40km Reslution These datasets provide solar radiation values for common flat-plate and concentrating collectors for 239 stations...
In FY 2004 and 2005, NREL developed a proposed minimal infrastructure to support nationwide deployment of hydrogen vehicles by offering infrastructure scenarios that facilitated interstate travel. This report identifies key metropolitan areas and regions on which to focus infrastructure efforts during the early hydrogen transition.
Melendez, M.; Milbrandt, A.
Property:File/GeographicExtent | Open Energy Information
GeographicExtent GeographicExtent Jump to: navigation, search Property Name File/GeographicExtent Property Type String Description The geographic extent associated with the file. Pages using the property "File/GeographicExtent" Showing 25 pages using this property. (previous 25) (next 25) A Australia-Solar-Map.png + National + B BOEMRE OCS.oil.gas.2007-12.map.pdf + Continental US plus Alaska + BOEMRE US.CSB.Map.pdf + Pacific Ocean, Alaska Region, Gulf of Mexico, Atlantic Ocean + BOEMRE US.CSB.bathy.map.pdf + Pacific Ocean, Alaska Region, GUlf of Mexico, Atlantic + BOEMRE atlantic.OCS.multiple.use.map.2003.pdf + Northeast coast of US + BOEMRE lease.platforms.santa.barb.map.5.2010.pdf + Santa Maria Basin + BOEMRE oil.gas.plant.platform.sta.brbra.map.4.2010.pdf + Santa Barbara Channel +
Geographic Information System (Laney, 2005) | Open Energy Information
Geographic Information System (Laney, 2005) Geographic Information System (Laney, 2005) Exploration Activity Details Location Unspecified Exploration Technique Geographic Information System Activity Date Usefulness useful DOE-funding Unknown Notes Geology and Geophysics of Geothermal Systems, Gregory Nash, 2005. This project has also reinforced the value of geographic information systems (GIS) in exploration efforts. GIS has enabled the visualization of data, storage and access of disparate data sets, and merging of data that would not be possible using any other technology. While CAD is preferred by some in geothermal exploration, it lacks a multitude of the functions facilitated with GIS. References Patrick Laney (2005) Federal Geothermal Research Program Update - Fiscal Year 2004 Retrieved from "http://en.openei.org/w/index.php?title=Geographic_Information_System_(Laney,_2005)&oldid=38930
Geographic Information System At Central Nevada Seismic Zone Region (Laney,
Geographic Information System At Central Nevada Seismic Zone Region (Laney, Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital
Geographic and Operational Site Parameters List (GOSPL) for Hanford Assessments
This data package was originally prepared to support a 2004 composite analysis (CA) of low-level waste disposal at the Hanford Site. The Technical Scope and Approach for the 2004 Composite Analysis of Low Level Waste Disposal at the Hanford Site (Kincaid et. al. 2004) identified the requirements for that analysis and served as the basis for initial preparation of this data package. Completion of the 2004 CA was later deferred, with the 2004 Annual Status Report for the Composite Analysis of Low-Level Waste Disposal in the Central Plateau at the Hanford Site (DOE 2005) indicating that a comprehensive update to the CA was in preparation and would be submitted in 2006. However, the U.S. Department of Energy (DOE) has recently decided to further defer the CA update and will use the cumulative assessment currently under preparation for the environmental impact statement (EIS) being prepared for tank closure and other site decisions as the updated CA. Submittal of the draft EIS is currently planned for FY 2008. This data package describes the facility-specific parameters (e.g. location, operational dates, etc.) used to numerically simulate contaminant flow and transport in large-scale Hanford assessments. Kincaid et al. (2004) indicated that the System Assessment Capability (SAC) (Kincaid et al. 2000; Bryce et al. 2002; Eslinger 2002a, 2002b) would be used to analyze over a thousand different waste sites. A master spreadsheet termed the Geographic and Operational Site Parameters List (GOSPL) was assembled to facilitate the generation of keyword input files containing general information on each waste site/facility, its operational/disposal history, and its environmental settings (past, current, and future). This report briefly describes each of the key data fields, including the source(s) of data, and provides the resulting inputs to be used for large-scale Hanford assessments.
Candidate sets for alternative routes in road networks
We present a fast algorithm with preprocessing for computing multiple good alternative routes in road networks. Our approach is based on single via node routing on top of Contraction Hierarchies and achieves superior quality and efficiency compared to ...
Dennis Luxen; Dennis Schieferdecker
A New Route to Nano Self-Assembly
A New Route to Nano Self-Assembly A New Route to Nano Self-Assembly Print Wednesday, 24 February 2010 00:00 If the promise of nanotechnology is to be fulfilled, nanoparticles will...
Convergence of intra-domain routing with centralized control
The decentralized control scheme for routing in current IP networks has been questioned, and a centralized routing scheme has been proposed as an alternative. In this paper, we compare the convergence of centralized control scheme with decentralized ...
Jing Fu; Peter Sj�din; Gunnar Karlsson
Load Profiling Based Routing for Guaranteed Bandwidth Flows
. To support the stringent Quality of Service (QoS) requirements of real-time (e.g. audio/video) applications in integrated services networks, several routing algorithms that allow for the reservation of the needed bandwidth over a Virtual Circuit (VC), established on one of several candidate routes, have been proposed. Traditionally, such routing is done using the least-loaded concept, and thus results in balancing the load across the set of candidate routes. In this paper, we propose the use of load profiling as an attractive alternative to load balancing for routing guaranteed bandwidth VCs (flows). Load profiling techniques allow the distribution of "available" bandwidth across a set of candidate routes to match the characteristics of incoming VC QoS requests. We thoroughly characterize the performance of VC routing using load profiling and contrast it to routing using load balancing and load packing. We do so both analytically and via extensive simulations of multi-class traffic r...
Ibrahim Matta; Azer Bestavros; Marwan Krunz
TEC Working Group Topic Groups Routing | Department of Energy
Routing Routing TEC Working Group Topic Groups Routing ROUTING The Routing Topic Group has been established to examine topics of interest and relevance concerning routing of shipments of spent nuclear fuel (SNF) and high-level radioactive waste (HLW) to a national repository at Yucca Mountain, Nevada by highway, rail, and intermodal operations that could involve use of barges. Ultimately, the main goal for the topic group members will be to provide stakeholder perspectives and input to the Office of Logistics Management (OLM) in the Department of Energy's (DOE) Office of Civilian Radioactive Waste Management (OCRWM) for the identification of a national suite of routes to Yucca Mountain. The identification of a suite of routes will provide an advanced planning framework for State and Tribal
Application-Aware Deadlock-Free Oblivious Routing
Conventional oblivious routing algorithms are either not application-aware or assume that each flow has its own private channel to ensure deadlock avoidance. We present a framework for application-aware routing that assures ...
Kinsy, Michel Ako
Geographic Information Systems- Tools For Geotherm Exploration...
that can help the geothermal industry in exploration, tracer analysis, infrastructure management, and the general distribution and use of data. GIS systems are highly...
Geographic Information System At Northern Basin & Range Region (Blewitt, Et
Blewitt, Et Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes On the regional scale, we investigated the spatial relationship of known geothermal activity with: (1) the regional tendency of Quaternary fault orientations; (2) the direction of extensional strain; and (3) the magnitudoef fault-normal extensional strain. Item (1) is purely a structural analysis based on documented Quatemary faulting. Item (2) is purely an empirical strain-rate analysis, based on GPS station velocity
Some help on the way: opportunistic routing under uncertainty
We investigate opportunistic routing, centering on the recommendation of ideal diversions on trips to a primary destination when an unplanned waypoint, such as a rest stop or a refueling station, is desired. In the general case, an automated routing ... Keywords: information value, mixed-initiative, opportunistic routing
Eric Horvitz; John Krumm
A Heuristic for the Vehicle Routing Problem with Time Windows
In this paper we propose a heuristic algorithm to solve the Vehicle Routing Problem with Time Windows. Its framework is a smart combination of three simple procedures: the classical k-opt exchanges improve the solution, an ad hoc procedure ... Keywords: heuristics, local search, routing, scheduling, vehicle routing with time windows
Roberto Cordone; Roberto Wolfler Calvo
Efficient routing and conflict resolution in F and IADM networks
The paper introduces a novel routing technique and a way to realize passable permutations in F and IADM redundant multistage interconnection networks. The simplicity of selecting alternate routes for a given source-destination pair is demonstrated by ... Keywords: F networks, redundant networks, fault tolerance, network topology, conflict resolution, IADM networks, routing, passable permutations, multistage interconnection networks, cycles
Anand; Agrawal; Kini
An iterative distributed algorithm for multi-constraint multicast routing
In this paper, we propose a group computation based distributed algorithm for solving the problem of multi-constraint multicast routing. This algorithm is fully distributed and can generate within acceptable time and message complexities a multicast ... Keywords: Distributed algorithm, Heuristic algorithm, Multicast, Multicast routing tree, Multiple constraints, NP-hardness, QoS, Routing protocol
Tzu-Lun Huang; D. T. Lee
Application-aware deadlock-free oblivious routing
Conventional oblivious routing algorithms are either not application-aware or assume that each flow has its own private channel to ensure deadlock avoidance. We present a framework for application-aware routing that assures deadlock-freedom under one ... Keywords: oblivious routing, on-chip interconnection networks, systems-on-chip
Michel A. Kinsy; Myong Hyon Cho; Tina Wen; Edward Suh; Marten van Dijk; Srinivas Devadas
Adaptive Path-Based Multicast on Wormhole-Routed Hypercubes
In this paper, we consider path-based multicast on wormhole-routed hypercubes. A minimum set of routing restrictions is used as the base routing algorithm. To correctly perform multicast, we present the natural list to sort the destination nodes. It ...
Chien-Min Wang; Yomin Hou; Lih-Hsing Hsu
Solar-aware Routing in Wireless Sensor Networks
Solar-aware Routing in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter and Jochen Schiller energy sources such as solar power may provide unlimited energy resources to a changing subset these nodes is appealing. In this paper, we present solar-aware routing, a rout- ing protocol for wireless
A dynamic reconfigurable routing framework for wireless sensor networks
Sensornet deployments of the future are expected to deliver a multitude of services, ranging from reliable sensing, real time streams, mission critical support, network reprogramming and so on. Naturally, no one routing protocol can sufficiently cater ... Keywords: Dynamic routing, Multi-hop routing, Wireless sensor networks
Mukundan Venkataraman; Mainak Chatterjee; Kevin Kwiat
Author's personal copy An iterative route construction and improvement algorithm
Meeting CD ROM, Washington, DC, January 2009. . Fu, Z routing problem with soft time windows Miguel Andres Figliozzi * Department of Civil and Environmental routing Soft time windows Route construction and improvement algorithms a b s t r a c t The solution
Going Bunkers: The Joint Route Selection and Refueling Problem
Managing shipping vessel profitability is a central problem in marine transportation. We consider two commonly used types of vessels---�liners� (ships whose routes are fixed in advance) and �trampers� (ships for which future route ... Keywords: maritime transportation, refueling, routing, shipping, stochastic prices
Omar Besbes; Sergei Savin
Map: medial axis based geometric routing in sensor networks
One of the challenging tasks in the deployment of dense wireless networks (like sensor networks) is in devising a routing scheme for node to node communication. Important consideration includes scalability, routing complexity, quality of communication ... Keywords: medial axis, routing, sensor networks, system design
Jehoshua Bruck; Jie Gao; Anxiao Jiang
Power-Demand Routing in massive geo-distributed systems
There is an increasing trend toward massive, geographically distributed systems. The largest Internet companies operate hundreds of thousands of servers in multiple geographic locations, and are growing at a fast clip. A ...
Qureshi, Asfandyar
Routing with Mutual Information Accumulation in Energy-Limited Wireless Networks
the same problem for the limited-energy case. We present an analysis based on counter examples, that showsRouting with Mutual Information Accumulation in Energy-Limited Wireless Networks Mahdi Shakiba-Herfeh Department of Electrical and Electronics Engineering METU, Ankara, Turkey 06800 Email: mahdi
Uysal-Biyikoglu, Elif
Performance of ad hoc networks with two-hop relay routing and limited packet lifetime (extended version)
We consider a mobile ad hoc network consisting of three types of nodes (source, destination and relay nodes) and using the two-hop relay routing. This type of routing takes advantage of the mobility and the storage capacity of the nodes, called the relay ... Keywords: Delay tolerant network, Limited packet lifetime, Mobile ad hoc network, Mobility model, Performance analysis, Two-hop relay protocol
Ahmad Al Hanbali; Philippe Nain; Eitan Altman
Routing Protocols to Maximize Battery Efficiency
In this paper we propose a routing protocol for wireless ad hoc networks whose nodes are largely battery powered. The battery capacity of the nodes is viewed as a common resource of the system and its use is to be optimized. Results from a previous study on battery management have shown that: (1) pulsed current discharge outperforms constant current discharge, (2) battery capacity can be improved by using a bursty discharge pattern due to charge recovery effects that take place during idle periods, (3) given a certain value of current drawn off the battery, higher current impulses degrade battery performance, even if the percentage of higher current impulses is relatively small. We develop a network protocol based on these findings. This protocol favors routes whose links have a low energy cost. We also distribute multihop traffic in a manner that allows all nodes a good chance to recover their battery energy reserve.
Carla F. Chiasserini; Ramesh R. Rao
Conversion Materials Through Chemical Synthesis Route Conversion Materials Through Chemical Synthesis Route Speaker(s): Lionel Vayssieres Date: April 27, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Samuel Mao The ability to design anisotropic nanoparticles with tailored aspect ratio and to order them into large 3-D arrays is an important challenge that scientists have to face to create functionalized nanomaterials. Our approach to control the size and shape of nanoparticles as well as the overall texture of nanoparticulate thin films is to tune their direct aqueous hydrolysis-condensation growth onto substrates by monitoring the interfacial thermodynamics of nanocrystals as well as their kinetics of heteronucleation. Growing materials at very low interfacial tension, i.e. at thermodynamically stable conditions, allows the experimental control of
Geographically Based Hydrogen Demand and Infrastructure Rollout...
Rollout Scenario Analysis January 31, 2007 Margo Melendez 2 ObjectiveOverview Lay out several scenarios for infrastructure deployment in the 2012-2025 timeframe 2012-2015: Initial...
QoS Routing in Smart Grid
Smart grid is an emerging technology which is able to control the power load via price signaling. The communication between the power supplier and power customers is a key issue in smart grid. Performance degradation like delay or outage may cause significant impact on the stability of the pricing based control and thus the reward of smart grid. Therefore, a QoS mechanism is proposed for the communication system in smart grid, which incorporates the derivation of QoS requirement and applies QoS routing in the communication network. For deriving the QoS requirement, the dynamics of power load and the load-price mapping are studied. The corresponding impacts of different QoS metrics like delay are analyzed. Then, the QoS is derived via an optimization problem that maximizes the total revenue. Based on the derived QoS requirement, a simple greedy QoS routing algorithm is proposed for the requirement of high speed routing in smart grid. It is also proven that the proposed greedy algorithm is a $K$-approximation. ...
Li, Husheng
On-demand computation of policy based routes for large-scale network simulation
Routing table storage demands pose a significant obstacle for large-scale network simulation. On-demand computation of routes can alleviate those problems for models that do not require representation of routing dynamics. However, policy based routes, ...
Michael Liljenstam; David M. Nicol
Geographic Information System At Walker-Lane Transitional Zone Region
Geographic Information System At Walker-Lane Geographic Information System At Walker-Lane Transitional Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital geothermal data will be made available to industry and researchers on a web site. Relationships among the data will be explored using spatial
Geographic Information System At Nevada Test And Training Range Area
Geographic Information System At Nevada Test And Training Range Area Geographic Information System At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Exploration Activity Details Location Nevada Test And Training Range Area Exploration Technique Geographic Information System Activity Date Usefulness not indicated DOE-funding Unknown Notes Nellis Air Force Range (NAFR) occupies over 3 million acres in southern Nevada (Figure 1). We recently assessed potential utility-grade geothermal resources and possible target areas for exploration by constructing a GIS of this area and applying the occurrence model ideas outlined above (ITSI, 2003; Sabin et al., 2004). We list below many of the factors considered.
Geographic Information System At Northern Basin & Range Region (Laney,
Geographic Information System At Northern Basin & Geographic Information System At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital geothermal data will be made available to industry and researchers on a web site. Relationships among the data will be explored using spatial
The NOAA-National Geographic Society Waterspout Expedition (1993)
This paper describes afield program conducted by NOAA and the National Geographic Society in late August 1993 near Key West, Florida. The mission of the expedition was to obtain close-up photographic documentation of waterspouts. Using a NOAA ...
Joseph H. Golden; Howard B. Bluestein
11.520 Workshop on Geographic Information Systems, Fall 2002
This class uses lab exercises and a workshop setting to help students develop a solid understanding of the planning and public management uses of geographic information systems (GIS). The goals are to help students: Acquire ...
Ferreira, Joseph
Geographic Information Systems in Weather, Climate, and Impacts
The National Center for Atmospheric Research (NCAR) held its first workshop on the Geographic Information System (GIS) in atmospheric sciences, �GIS in Weather, Climate and Impacts.� The meeting was a forum for researchers, engineers, providers ...
Olga V. Wilhelmi; Jeffrey C. Brunskill
NDP-055b DOI: 10.3334CDIAClue.ndp055.2007 Geographical Distribution of Woody Biomass Carbon in Tropical Africa: An Updated Database for 2000 Small Map of Biomass Carbon...
Geographic Area Month Aviation Gasoline Kerosene-Type Jet Fuel
Gallon Excluding Taxes) - Continued Geographic Area Month Aviation Gasoline Kerosene-Type Jet Fuel Kerosene Sales to End Users Sales for Resale Sales to End Users Sales for Resale...
On optimal TTL sequence-based route discovery in MANETs
In on-demand multi-hop routing protocols for MANETs such as DSR and AODV, a fundamental requirement for peer-to-peer connectivity is to discover routes to a remote node via flooding of route request messages. Historically, such floodings of requests have used a TTL (time-to-live) large enough to reach all nodes in the network to ensure successful route discovery in one round of flooding. Recently [1], it was shown that the generic minimal cost flooding search problem can be solved via a sequence of floodings with an optimally chosen set of TTLs. The theoretical result, when applied to DSR route discovery, does not take into account optimizations such as route caching and overhearing, which can significantly reduce the frequency and the propagation range of route discovery operations. Equally importantly, the impact of using a sequence of floodings on the packet delivery delay is not clear. In this paper, we study the impact of using the optimal TTL sequence-based route discovery on DSR routing performance. Our results show when caching and overhearing are considered, the route discovery enhanced by an optimal TTL sequence has very similar overhead but higher delay than the basic route discovery mechanism. 1
Dimitrios Koutsonikolas; Saumitra M. Das; Himabindu Pucha; Y. Charlie Hu
On Optimal TTL Sequence-Based Route Discovery in MANETs
In on-demand multi-hop routing protocols for MANETs such as DSR and AODV, a fundamental requirement for peer-to-peer connectivity is to discover routes to a remote node via flooding of route request messages. Historically, such floodings of requests have used a TTL (time-to-live) large enough to reach all nodes in the network to ensure successful route discovery in one round of flooding. Recently [1], it was shown that the generic minimal cost flooding search problem can be solved via a sequence of floodings with an optimally chosen set of TTLs. The theoretical result, when applied to DSR route discovery, does not take into account optimizations such as route caching and overhearing, which can significantly reduce the frequency and the propagation range of route discovery operations. Equally importantly, the impact of using a sequence of floodings on the packet delivery delay is not clear. In this paper, we study the impact of using the optimal TTL sequence-based route discovery on DSR routing performance. Our results show when caching and overhearing are considered, the route discovery enhanced by an optimal TTL sequence has very similar overhead but higher delay than the basic route discovery mechanism.
Dimitrios Koutsonikolas Saumitra; Dimitrios Koutsonikolas; Saumitra M. Das; Himabindu Pucha; Y. Charlie Hu
Core location-aided cluster-based routing protocol for mobile ad hoc networks
Instead of blindly searching for a route in the entire network, the location-based routing protocol uses the location information of mobile nodes to confine routing space into a smaller range that reduces routing overhead and broadcast storm. In this ... Keywords: GPS, MANET, cluster-based routing, geocasting, routing protocol
Red herrings revisited: spatial autocorrelation and parameter estimation in geographical ecology
autocorrelation and red herrings in geographical ecology. �2000. Red-shifts and red herrings in geographical ecology. �email:email@example.com Red herrings revisited: spatial
Hawkins, Bradford A.; Diniz-Filho, Jose Alexandre F.; Bini, Luis Mauricio; De Marco, Paulo; Blackburn, Tim M.
Addressing colorectal cancer disparities: the identification of geographic targets for screening interventions in Miami-Dade County, Florida
This paper describes an analysis of spatial clustering of colorectal cancer (CRC) in Miami-Dade County, Florida. The objective was to identify geographically based targets for colorectal cancer screening interventions for Blacks and Hispanic Whites, ... Keywords: SaTScan, colorectal cancer clusters, public health significance, screening disparities, stage at diagnosis
Recinda Sherman; Kevin Henry; David Lee
NREL: Energy Analysis - Keith Searight
management and best practices Technical program management Geographic information systems Tech transfer from research to operations Primary research interests Geospatial analysis...
InRout - A QoS aware route selection algorithm for industrial wireless sensor networks
Wireless sensor networks are a key enabling technology for industrial monitoring applications where the use of wireless infrastructure allows high adaptivity and low cost in terms of installation and retrofitting. To facilitate the move from the current ... Keywords: IEEE 802.15.4, Industrial, Quality of service, Reinforcement learning, Routing, Wireless sensor networks (WSNs)
Berta Carballido Villaverde; Susan Rea; Dirk Pesch
A scalable virtual circuit routing scheme for ATM networks
Abstract: We present a scalable VC routing protocol based on the viewserver hierarchy. Each viewserver maintains a partial view of the network. By querying these viewservers, a source obtains a merged view that contains a path to the destination. The ... Keywords: ATM networks, asynchronous transfer mode, blocking probability, destination, packet switching networks, real-time workload, scalable VC routing protocol, scalable virtual circuit routing, setup request packet, simulation, source, storage, viewserver hierarchy
Optimization Online - Efficient and Fair Routing for Mesh Networks
Feb 8, 2010 ... The solution that minimizes the total energy spent by the whole ... We propose a distributed and online routing algorithm and compare it to an�...
OSPF Routing with Optimal Oblivious Performance Ratio Under ...
an accurate reflection of real world IP networks, not only because it considers the ... network resources by applying protocols that establish the routing paths, ac-.
The robust vehicle routing problem with time windows
Oct 2, 2012 ... Abstract: This paper addresses the robust vehicle routing problem with time windows. We are motivated by a problem that arises in maritime�...
MAC and Routing Protocols for Mobile Underwater Acoustic Sensor Swarms
Pressure Routing for Underwater Sensor Networks . . . . . .of Aloha Protocols for Underwater Acoustic Sensor Networks.Critical Applications in Underwater Sensor Networks. In
Noh, Young Tae
Flexible Solutions to Maritime Inventory Routing Problems with ...
simulation study for a liquefied natural gas (LNG) ship routing problem with uncertainty in sailing time and production rate is presented in Halvorsen-Weare et al.
Geographic Information System At Northern Basin & Range Region (Coolbaugh,
source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Geographic Information System At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Mark Coolbaugh, Richard Zehner, Corne Kreemer, David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa-
Geographic Information System At Central Nevada Seismic Zone Region
Central Nevada Seismic Zone Region Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Mark Coolbaugh, Richard Zehner, Corne Kreemer, David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Retrieved from "http://en.openei.org/w/index.php?title=Geographic_Information_System_At_Central_Nevada_Seismic_Zone_Region_(Coolbaugh,_Et_Al.,_2005_-_2)&oldid=401371
Blewitt, Et Al., 2003) Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Geoffrey Blewittl, Mark F. Coolbaugh, Don Sawatzky, William Holt, James Davis, Richard A. Bennett (2003) Targeting Of Potential Geothermal Resources In The Great Basin From Regional To Basin-Scale Relationship Between Geodetic Strain And Geological Structures Retrieved from "http://en.openei.org/w/index.php?title=Geographic_Information_System_At_Central_Nevada_Seismic_Zone_Region_(Blewitt,_Et_Al.,_2003)&oldid=401370"
DOE Collaboration with National Geographic's JASON Project Yields Three
Collaboration with National Geographic's JASON Project Yields Collaboration with National Geographic's JASON Project Yields Three CODiE Awards DOE Collaboration with National Geographic's JASON Project Yields Three CODiE Awards July 28, 2010 - 1:00pm Addthis Washington, DC - The JASON Project's multimedia energy curriculum has earned three CODiE Awards from the Software & Information Industry Association (SIIA). Developed with assistance from the Office of Fossil Energy's National Energy Technology Laboratory (NETL), Operation: Infinite Potential explores past, current, and future challenges of energy generation, storage, and consumption. NETL was one of four host sites used in developing the JASON Project's energy curriculum Operation: Infinite Potential. Visiting students learned about energy challenges and conducted research alongside NETL scientists.
Working With Tribal Nations - A Geographic, Legal, and Economic
Working With Tribal Nations - A Geographic, Legal, and Economic Working With Tribal Nations - A Geographic, Legal, and Economic Imperative Working With Tribal Nations - A Geographic, Legal, and Economic Imperative June 1, 2012 - 4:59pm Addthis Our Nationâs tribal communities are neighbors to the Energy Departmentâs National Laboratories and sites. In some cases there are tribes who retain treaty rights to land under the control of the Department. Our Nation's tribal communities are neighbors to the Energy Department's National Laboratories and sites. In some cases there are tribes who retain treaty rights to land under the control of the Department. Dot Harris Dot Harris The Honorable Dot Harris, Director, Office of Economic Impact and Diversity Did You Know? Indian land contains an estimated ten percent of all our energy
Energy Efficient Geographical Load Balancing via Dynamic Deferral of Workload
With the increasing popularity of Cloud computing and Mobile computing, individuals, enterprises and research centers have started outsourcing their IT and computational needs to on-demand cloud services. Recently geographical load balancing techniques have been suggested for data centers hosting cloud computation in order to reduce energy cost by exploiting the electricity price differences across regions. However, these algorithms do not draw distinction among diverse requirements for responsiveness across various workloads. In this paper, we use the flexibility from the Service Level Agreements (SLAs) to differentiate among workloads under bounded latency requirements and propose a novel approach for cost savings for geographical load balancing. We investigate how much workload to be executed in each data center and how much workload to be delayed and migrated to other data centers for energy saving while meeting deadlines. We present an offline formulation for geographical load balancing problem with dyna...
Adnan, Muhammad Abdullah; Gupta, Rajesh
Semantic Routed Network for Distributed Search Engines
Searching for textual information has become an important activity on the web. To satisfy the rising demand and user expectations, search systems should be fast, scalable and deliver relevant results. To decide which objects should be retrieved, search systems should compare holistic meanings of queries and text document objects, as perceived by humans. Existing techniques do not enable correct comparison of composite holistic meanings like: "evidences on role of DR2 gene in development of diabetes in Caucasian population", which is composed of multiple elementary meanings: "evidence", "DR2 gene", etc. Thus these techniques can not discern objects that have a common set of keywords but convey different meanings. Hence we need new methods to compare composite meanings for superior search quality. In distributed search engines, for scalability, speed and efficiency, index entries should be systematically distributed across multiple index-server nodes based on the meaning of the objects. Furthermore, queries should be selectively sent to those index nodes which have relevant entries. This requires an overlay Semantic Routed Network which will route messages, based on meaning. This network will consist of fast response networking appliances called semantic routers. These appliances need to: (a) carry out sophisticated meaning comparison computations at high speed; and (b) have the right kind of behavior to automatically organize an optimal index system. This dissertation presents the following artifacts that enable the above requirements: (1) An algebraic theory, a design of a data structure and related techniques to efficiently compare composite meanings. (2) Algorithms and accelerator architectures for high speed meaning comparisons inside semantic routers and index-server nodes. (3) An overlay network to deliver search queries to the index nodes based on meanings. (4) Algorithms to construct a self-organizing, distributed meaning based index system. The proposed techniques can compare composite meanings ~105 times faster than an equivalent software code and existing hardware designs. Whereas, the proposed index organization approach can lead to 33% savings in number of servers and power consumption in a model search engine having 700,000 servers. Therefore, using all these techniques, it is possible to design a Semantic Routed Network which has a potential to improve search results and response time, while saving resources.
Biswas, Amitava
Characterizing the Interaction Between Routing and MAC Protocols in Ad-Hoc Networks
We empirically study the effect of mobility on the performance of protocols designed for wireless ad-hoc networks. An important objective is to study the interaction of the Routing and MAC layer protocols under different mobility parameters. We use three basic mobility models: grid mobility model, random waypoint model, and exponential correlated random model. The performance of protocols is measured in terms of (i) latency, (ii) throughput, (iii) number of packets received, (iv) long term fairness and (v) number of control packets at the MAC and routing layer level. Three different commonly studied routing protocols are used: AODV, DSR and LAR1. Similarly three well known MAC protocols are used: MACA, 802.1 1 and CSMA. Our main contribution is simulation based experiments coupled with rigorous statistical analysis to characterize the interaction of MAC layer protocols with routing layer protocols in ad-hoc networks. From the results, we can conclude the following: e No single MAC or Routing protocol dominated the other protocols in their class. Probably more interestingly, no MAURouting protocol combination was better than other combinations over all scenarios and response variables. 0 In general, it is not meaningful to speak about a MAC or a routing protocol in isolation. Presence of interaction leads to trade-offs between the amount of control packets generated by each layer. The results raise the possibility of improving the performance of a particular MAC layer protocol by using a cleverly designed routing protocol or vice-versa. Thus in order to improve the performanceof a communication network, it is important to study the entire protocol stack as a single algorithmic construct; optimizing individual layers in the seven layer OS1 stack will not yield performance improvements beyond a point. A methodological contribution of this paper is the use of statistical methods such as analysis of variance (ANOVA), to characterize the interaction between the protocols, mobility patterns and speed. Such methods allow us to analyze complicated experiments with large input space in a systematic manner.
Hybrid Trust Model for Internet Routing
The current Internet is based on a fundamental assumption of reliability and good intent among actors in the network. Unfortunately, unreliable and malicious behaviour is becoming a major obstacle for Internet communication. In order to improve the trustworthiness and reliability of the network infrastructure, we propose a novel trust model to be incorporated into BGP routing. In our approach, trust model is defined by combining voting and recommendation to direct trust estimation for neighbour routers located in different autonomous systems. We illustrate the impact of our approach with cases that demonstrate the indication of distrusted paths beyond the nearest neighbours and the detection of a distrusted neighbour advertising a trusted path. We simulated the impact of weighting voted and direct trust in a rectangular grid of 15*15 nodes (autonomous systems) with a randomly connected topology.
Rantala, Pekka; Isoaho, Jouni
Eliminating livelock in flushable routing networks
This invention is comprised of a method for livelock-free message routing is provided in a network of interconnected nodes that is flushable in time T. An input message processor generates sequences of at least N time intervals, each of duration T. An input register provides for receiving and holding each input message, where the message is assigned a priority state p during an nth one of the N time intervals. At each of the network nodes a message processor reads the assigned priority state and awards priority to messages with priority state (p-1) during an nth time interval and to messages with priority state p during an (n + 1)th time interval. The messages that are awarded priority are output on an output path toward the addressed output message processor. Thus, no message remains in the network for a time longer than T.
Faber, V.
Global remote sensing research trends during 1991---2010: a bibliometric analysis
According to the articles related to remote sensing of SCI and SSCI databases during 1991---2010, this study evaluated the geographical influence of authors by the new index (geographical impact factor), and revealed the auctorial, institutional, national, ... Keywords: Bibliometric analysis, Geographic information system (GIS), Geographical impact factor (GIF), Remote Sensing (RS), Satellite
Yanhua Zhuang; Xingjian Liu; Thuminh Nguyen; Qingqing He; Song Hong
Design and development of a vehicle routing system under capacity, time-windows and rush-order reloading considerations
The purpose of this research is to present the design and development of a routing system, custom developed for a fence manufacturing company in the continental US. The objective of the routing module of the system is to generate least cost routes from the home-center of the company to a set of delivery locations. Routes are evolved for a set of customer locations based on the sales order information and are frequently modified to include rush orders. These routes are such that each delivery is made within a given time window. Further, total truckload of all delivery locations over any particular route is not allowed to exceed the weight and volume capacities of the truck. The basic system modules such as user interface functions and database are designed using MS Access 2000. An interface module to retrieve data from existing ERP system of the company is developed to import pick-ticket information. A customer inter-distance maintenance module is designed with the abilities of a learning tool to reduce information retrieval time between the routing system and the GIS server. The Graphical User Interface with various screen forms and printable reports is developed along with the routing module to achieve complete system functionality and to provide an efficient logistics solution. This problem, formulated as a mixed-integer program, is of particular interest due to its generality to model problem scenarios in the production shop such as job-shop scheduling, material handling, etc. This problem is coded and solved for instances with different input parameters using AMPL/CPLEX. Results of test runs for the company data show that the solution time increases exponentially with the number of customers. Hence, a heuristic approach is developed and implemented. Sample runs with small instances are solved for optimality using AMPL/CPLEX and are used to compare the performance of the heuristics. However, test runs solved using the heuristics for larger instances are compared with the manual routing costs. The comparison shows a considerable cost savings for heuristic solutions. Further, a what-if analysis module is implemented to aid the dispatcher in choosing input parameters based on sensitivity analysis. In conclusion, further improvement of the routing system and future research directions are proposed.
Easwaran, Gopalakrishnan
Using GeoWordNet for Geographical Information Retrieval
- ambiguated and assigned their coordinates on the world map. Documents are first searched for by means of a term-based search method, and then re-ranked according to the geographical information. The results knowledge at keyword level in the Lucene1 search engine, focusing on the use of the WordNet [3] ontology
Rosso, Paolo
Spatial Modeling of Geographic Patterns in Biodiversity and Biofuel Production
Spatial Modeling of Geographic Patterns in Biodiversity and Biofuel Production How can the US of biodiversity. The future of the biofuel industry will depend on public investment and trust that industry for increasing biofuel production have already come under fire because of real and perceived threats
An algebraic approach to image schemas for geographic space
Formal models of geographic space should support reasoning about its static and dynamic properties, its objects, their behaviors, and the relationships between them. Image schemas, used to embody spatiotemporal experiential abstractions, capture high-level ... Keywords: bigraph models, built environments, image schemas, spatial relations
Lisa Walton; Michael Worboys
a0005 Geographic Overviews/Africa Central and Nilotic Sudan
culture characterized by skillfully made bifacial flint hand axes. g0010 artifact Any object manufactured been called flint, but true flint is found in chalk deposits and is a distinctive blackish color. g0025 dispersal The process in which an organism spreads out geographically. g0030 flint A hard, brittle
Nicoll, Kathleen
Using GeoWordNet for geographical information retrieval
We present a method that uses GeoWordNet for Geographical Information Retrieval. During the indexing phase, all places are disambiguated and assigned their coordinates on the world map. Documents are first searched for by means of a term-based search ...
Davide Buscaldi; Paolo Rosso
Spatial Thinking with Geographic Maps: An Empirical Study
Geographic maps are a well--established way of representing domain--specific knowledge in a way which integrates symbolic and pictorial representation. This paper proposes an interdisciplinary approach to the understanding of how maps represent and organise knowledge, combining artificial intelligence knowledge representation theory with empirical findings and methods from cognitive psychology.
Bettina Berendt; Reinhold Rauh; Thomas Barkowsky; Universit�t Hamburg; Fachbereich Informatik; Arbeitsbereich Wsv
Fuel Cell Backup Power Geographical Visualization Map (Fact Sheet)
This NREL Hydrogen and Fuel Cell Technical Highlight describes a time-lapse geographical visualization map of early market use of fuel cells for telecommunications backup power. The map synthesizes data being analyzed by NREL's Technology Validation team for the U.S. Department of Energy (DOE) Fuel Cell Technologies Program with DOE's publicly available annual summaries of electric disturbance events.
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Exact Routing in Large Road Networks Using Contraction Hierarchies
Contraction hierarchies are a simple approach for fast routing in road networks. Our algorithm calculates exact shortest paths and handles road networks of whole continents. During a preprocessing step, we exploit the inherent hierarchical structure ... Keywords: algorithm engineering, route planning, shortest paths
Robert Geisberger; Peter Sanders; Dominik Schultes; Christian Vetter
Review: Industrial aspects and literature survey: Fleet composition and routing
The purpose of this paper is to describe industrial aspects of combined fleet composition and routing in maritime and road-based transportation, and to present the current status of research in the form of a comprehensive literature review. First, presents ... Keywords: Fleet composition, Fleet dimensioning, Fleet size and mix, Maritime transportation, Road-based transportation, Vehicle routing
Arild Hoff; Henrik Andersson; Marielle Christiansen; Geir Hasle; Arne L�kketangen
HLP: a next generation inter-domain routing protocol
It is well-known that BGP, the current inter-domain routing protocol, has many deficiencies. This paper describes a hybrid link-state and path-vector protocol called HLP as an alternative to BGP that has vastly better scalability, isolation and convergence ... Keywords: BGP, convergence, inter-domain routing, scalability
Lakshminarayanan Subramanian; Matthew Caesar; Cheng Tien Ee; Mark Handley; Morley Mao; Scott Shenker; Ion Stoica
Optimizing Ship Routing to Maximize Fleet Revenue at Danaos
In this paper we present an innovative toolkit that Danaos Corporation developed and deployed to optimize ship routing. Operations Research In Ship MAnagement ORISMA provides a clear answer to the conventional dilemma of least-cost voyage versus faster ... Keywords: cargo transport optimization, dynamic programming, maritime routing, voyage planning
Takis Varelas; Sofia Archontaki; John Dimotikalis; Osman Turan; Iraklis Lazakis; Orestis Varelas
Wavelength routing of uniform instances in all-optical rings
We consider the problem of routing uniform communication instances in switched optical rings that use wavelength-division multiplexing technology. A communication instance is called uniform if it consists exactly of all pairs of nodes in the graph whose ... Keywords: Edge load, Optical ring, Routing, Uniform instance, WDM, Wavelength index
Lata Narayanan; Jaroslav Opatrny
Energy-Aware Routing in Wireless Ad-hoc Networks
Energy-Aware Routing in Wireless Ad-hoc Networks Panagiotis C. Kokkinos Christos A. Papageorgiou Emmanouel A. Varvarigos Abstract In this work we study energy efficient routing strate- gies for wireless ad-hoc networks. In this kind of net- works, energy is a scarce resource and its conservation
Varvarigo, Emmanouel "Manos"
Designing optimal iBGP route-reflection topologies
The Border Gateway Protocol (BGP) is used today by all Autonomous Systems (AS) in the Internet. Inside each AS, iBGP sessions distribute the external routes among the routers. In large ASs, relying on a full-mesh of iBGP sessions between routers is not ... Keywords: BGP, iBGP topology design, optimization, route-reflection
Marc-Olivier Buob; Steve Uhlig; Mickael Meulle
Routing algorithms for large scale wireless sensor networks
Routing in sensor networks is a challenging issue due to inherent constraints such as power, memory, and CPU processing capabilities. In this thesis, we assume an All to All communication mode in an N � N grid sensor network. We explore routing algorithms which load balance the network without compromising the shortest paths constrain. We analyzed the Servetto method and studied two routing strategies, namely Horizontal-Vertical routing and Zigzag routing. The problem is divided into two scenarios, one being the static case (without failed nodes), and the other being the dynamic case (with failed nodes). In static network case, we derived mathematical formulae representing the maximum and minimum loads on a sensor grid, when specific routing strategies are employed. We show improvement in performance in load balancing of the grid by using Horizontal-Vertical method instead of the existing Servetto method. In the dynamic network scenario, we compare the performance of routing strategies with respect to probability of failure of nodes in the grid network. We derived the formulae for the success-ratio, in specific strategies, when nodes fail with a probability of p in a predefined source-destination pair communication. We show that the Servetto method does not perform well in both scenarios. In addition, Hybrid strategy proposed does not perform well compared to the studied strategies. We support the derived formulae and the performance of the routing strategies with extensive simulations.
Nittala Venkata, Lakshmana Prasanth
Monsoon is a parallel processing dataflow computer that will require a high bandwidth interconnection network. A packet switched routing chip (PaRC) is described that will be used as the basis of this network. PaRC is a 4 by 4 routing switch which has ...
C. F. Joerg
Energy Efficient Routing in Ad Hoc Disaster Recovery Networks
disaster site, the Wireless Emergency Response Team (WERT) attempted to locate survivors through signalsEnergy Efficient Routing in Ad Hoc Disaster Recovery Networks Gil Zussman and Adrian Segall. Keywords: Routing, Energy efficient, Energy conserving, Power aware, Disaster recovery networks, Ad hoc
Zussman, Gil
Optimized query routing trees for wireless sensor networks
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with a path over which query results can be transmitted to the querying node. ... Keywords: Critical path method, Query routing trees, Sensor networks
Panayiotis Andreou; Demetrios Zeinalipour-Yazti; Andreas Pamboris; Panos K. Chrysanthis; George Samaras
Optimum Ship Routing and It's Implementation on the Web
Optimum Ship Routing can be defined as "The selection of an optimum track for a transoceanic crossing by the application of long-range predictions of wind, waves and currents to the knowledge of how the routed vessel reacts to these variables". Generally, ...
Heeyong Lee; Gilyoung Kong; Sihwa Kim; Cholseong Kim; Jaechul Lee
Focused beam routing protocol for underwater acoustic networks
Multi-hop transmission is considered for large coverage areas in bandwidth-limited underwater acoustic networks. In this paper, we present a scalable routing technique based on location information, and optimized for minimum energy per bit consumption. ... Keywords: power control, routing, underwater acoustic networks
Josep Miquel Jornet; Milica Stojanovic; Michele Zorzi
Partitioning Routing Area into Zones with Distinct Pins
Topological routing has gained importance in state-of-the-art layout synthesis. This paper poses the problem of partitioning the routing area of a given placement into a minimum set of zones such that in each zone, no two pins belong to the same net. ...
K. Sinha; S. Sur-Kolay; B. B. Bhattacharya; P. S. Dasgupta
Cluster based dynamic routing on powerline carrier network
Topology of power line carrier network (PLCN) is complex, fast changeable and its channel is time-variant. To enhance the availability and effectiveness of network communication, a cluster based dynamic routing algorithm (CBDR) is proposed in the paper. ... Keywords: cluster algorithm, dynamic route, powerline carrier network, tree-topology
Hong Li; Wang Kensheng; Li Shurong; Zou Weixia; Zhou Zheng
A case for bufferless routing in on-chip networks
Buffers in on-chip networks consume significant energy, occupy chip area, and increase design complexity. In this paper, we make a case for a new approach to designing on-chip interconnection networks that eliminates the need for buffers for routing ... Keywords: memory systems, multi-core, on-chip networks, routing
Thomas Moscibroda; Onur Mutlu
DOE HQ Shuttle Bus Schedule and Route | Department of Energy
DOE HQ Shuttle Bus Schedule and Route DOE HQ Shuttle Bus Schedule and Route DOE HQ Shuttle Bus Schedule and Route The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. Headquarters employees are reminded of the statutory provisions that authorize and limit the use of the shuttle bus service. Specific authority for the use of appropriated funds to pay for transportation for official purposes is contained in section 1344(a)(1) of Title 31, U.S. Code. Use of this transportation for any other purpose is inappropriate and against the law.
Towards Sustainable Watershed Dvelopment: A Geographic Information Systems based Approach
With an unprecedented projection of population and urban growth in the coming decades, assessment of the long-term hydrologic impacts of land use change is crucial for optimizing management practices to control runoff and non-point source (NPS) pollution associated with sustainable watershed development. Land use change, dominated by an increase in urban/impervious areas, can have a significant impact on water resources. Non-point source (NPS) pollution is the leading cause of degraded water quality in the US and urban areas are an important source of NPS pollution. Most planners, government agencies, and consultants lack access to simple impact-assessment tools despite widespread concern over the environmental impacts of watershed development. Before investing in complex analyses and customized data collection, it is often useful to utilize simple screening analyses using data that are already available. In this paper, we discuss such a technique for long-term hydrologic impact assessment (L-THIA) that makes use of basic land use, soils and long-term rainfall data to compare the hydrologic impacts of past, present and any future land use change. Long-term daily rainfall records are used in combination with soils and land use information to calculate average annual runoff and NPS pollution at a watershed scale. Because of the geospatial nature of land use and soils data, and the increasingly widespread use of GIS by planners, government agencies and consultants, the model is integrated with a Geographic Information System (GIS) that allows convenient generation and management of model input and output data, and provides advanced visualization of the model results. An application of the L-THIA/NPS model on the Little Eagle Creek (LEC) watershed near Indianapolis, Indiana is illustrated in this paper. Three historical land use scenarios for 1973, 1984, and 1991 were analyzed to track land use change in the watershed and to assess the impacts of land use change on annual average runoff and NPS pollution from the watershed and its five sub-basins. Results highlight the effectiveness of the L-THIA approach in assessing the long-term hydrologic impact of urban sprawl. The L-THIA/NPS GIS model is a powerful tool for identifying environmentally sensitive areas in terms of NPS pollution potential and for evaluating alternative land use scenarios to enhance NPS pollution management. Access to the model via the INTERNET enhances the usability and effectiveness of the technique significantly. Recommendations can be made to community decision makers, based on this analysis, concerning how development can be controlled within the watershed to minimize the long-term impacts of increased stormwater runoff and NPS pollution for better management of water resources.
Bhaduri, Budhendra L [ORNL
Impact analysis of MBTA 2009 Key Bus Route Initiative program
The Massachusetts Bay Transit Agency (MBTA) has the stated service objectives of customer service excellence, accessibility, reliability, and state-of-the-art technology. Over the last few years, the MBTA has been concerned ...
Krysinski, Yann
Modeling on quicksand: dealing with the scarcity of ground truth in interdomain routing data
Researchers studying the interdomain routing system, its properties and new protocols, face many challenges in performing realistic evaluations and simulations. Modeling decisions with respect to AS-level topology, routing policies and traffic matrices ... Keywords: bgp, interdomain routing, simulations
Phillipa Gill; Michael Schapira; Sharon Goldberg
from Tucum Oil via an Alkaline Route
Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. A simple, fast, and complete route for the production of methylic and ethylic biodiesel from tucum oil is described. Aliquots of the oil obtained directly from pressed tucum (pulp and almonds) were treated with potassium methoxide or ethoxide at 40 ? Cfor 40 min. The biodiesel form was removed from the reactor and washed with 0.1 M HCl aqueous solution. A simple distillation at 100 ? C was carried out in order to remove water and alcohol species from the biodiesel. The oxidative stability index was obtained for the tucum oil as well as the methylic and ethylic biodiesel at 6.13, 2.90, and 2.80 h, for storage times higher than 8 days. Quality control of the original oil and of the methylic and ethylic biodiesels, such as the amount of glycerin produced during the transesterification process, was accomplished by the TLC, GC-MS, and FT-IR techniques. The results obtained in this study indicate a potential biofuel production by simple treatment of tucum, an important Amazonian fruit. 1.
Characterization Of Methylic; Ethylic Biodiesels; Marcelo Firmino De Oliveira; Andressa Tironi Vieira; Ant�nio Carlos Ferreira Batista; Hugo De Souza Rodrigues; Nelson Ramos Stradiotto
Routing SCADA data through an enterprise WAN
Houston Lighting and Power (HL and P) and many other large utilities have investigated substantial resources in developing integrated enterprise wide area networks (WANs). The WAN provides unprecedented opportunities for integrating information throughout the corporation, resulting in improved efficiency and reduced costs of operation. In contrast, present dedicated point-to-point SCADA data circuits from the energy management system (EMS) to remote terminal units (RTUs) are not currently integrated with the network, nor replicated in any offsite backup system. An integrated approach might integrate communications from selected RTUs over the WAN to a backup system or the EMS. Such an approach would potentially provide improved disaster recovery, more efficient use of communications, reduced maintenance costs, and improved availability of operational data. RTU data, however, is fundamentally different from most other WAN traffic in that it is critical to the moment-to-moment operation of the utility and consists of a large number of messages repeated frequently and continuously. There are valid concerns as to whether the stability, availability, and inherent latency of the WAN would be adequate to support operations of a backup or primary SCADA system. There are also concerns about the adverse effects that SCADA traffic might have on the WAN. These concerns led to the project featured in this article, which tested the operational suitability and effectiveness of routing SCADA data between selected RTUs and a central site on the WAN.
Flowers, T.; Houle, B. [Houston Lighting and Power, TX (United States); Retzer, J.; Ramanathan, R. [National Systems and Research, Camas, WA (United States)
Use of Forest Inventories and Geographic Information Systems To Estimate
Appendix B: Use of Forest Inventories and Geographic Information Systems To Appendix B: Use of Forest Inventories and Geographic Information Systems To Estimate Biomass Density of Tropical Forests: Application to Tropical Africa S. Brown and G. Gaston U.S. Environmental Protection Agency, 200 SW 35th St., Corvalis, OR 97333, USA Abstract One of the most important databases needed for estimating emissions of carbon dioxide resulting from changes in the cover, use, and management of tropical forests is the total quantity of biomass per unit area, referred to as biomass density. Forest inventories have been shown to be valuable sources of data for estimating biomass density, but inventories for the tropics are few in number and their quality is poor. This lack of reliable data has been overcome by use of a promising approach that produces
Walker-Lane Transitional Zone Region Walker-Lane Transitional Zone Region (Blackwell, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Walker-Lane Transitional Zone Region (Blackwell, Et Al., 2003) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful DOE-funding Unknown Notes Developed natural state mass and energy transport fluid flow models of generic Basin and Range systems based on Dixie Valley data that help to understand the nature of large scale constraints on the location and characteristics of the geothermal systems References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard
Environmental and geographical aspects in HVdc electrode design
An essential element in HVdc electrode design is to minimize all environmental stresses in order to meet and verify conformance to the laws and regulations associated with the concessions granted by the authorities. The environmental disturbance caused in anode or cathode operation is more or less entirely dependent on the materials used, the geographical location and the electrode size. The electrode materials and the related electrochemical process in the surrounding medium are discussed in the paper in order to shed further light on the chemical properties of different materials in an electrolyte process. The geographical location of an electrode is described, taking into account new aspects such as the impact of the earth`s magnetic field and the interaction with existing HVdc electrodes. The experiences described in this paper are based on the design, tests and operation of the electrodes in the Baltic Cable HVdc link and other Scandinavian HVdc links.
Tykeson, K. [Sydkraft Konsult AB, Malmoe (Sweden); Nyman, A. [Baltic Cable AB, Malmoe (Sweden); Carlsson, H. [Permascand AB, Ljungaverk (Sweden)
A Set-Partitioning-Based Model for the Stochastic Vehicle Routing ...
where cost savings of roughly 5% are possible. ... and home heating oil. ... routes that minimizes the sum of the costs of the planned routes and the expected cost�...
Green-aware workload scheduling in geographically distributed data centers
Renewable (or green) energy, such as solar or wind, has at least partially powered data centers to reduce the environmental impact of traditional energy sources (brown energy with high carbon footprint). In this paper, we propose a holistic workload ... Keywords: Green products,Cooling,Energy consumption,Optimization,Scheduling algorithms,Distributed databases,geographically distributed data centers,Green data centers,renewable energy,workload,scheduling
Xueyan Tang, Changbing Chen, Bingsheng He
Charting a New Carbon Route to Development | Open Energy Information
Charting a New Carbon Route to Development Charting a New Carbon Route to Development Jump to: navigation, search Tool Summary Name: Charting a New Carbon Route to Development Agency/Company /Organization: United Nations Development Programme (UNDP) Topics: Low emission development planning Resource Type: Guide/manual Website: www.beta.undp.org/content/undp/en/home/ourwork/environmentandenergy/fo Cost: Free Language: English Charting a New Carbon Route to Development Screenshot "UNDP recognizes the critical need to support developing country governments to build on their existing development strategies and coordination experiences (e.g., National Communications, National Adaptation Plan of Action, National Biodiversity Strategy and Action Plan, UN Development Assistance Framework, Country Assistance Strategy,
The Robust Network Loading Problem with Static Routing
(sk,tk) be a node pair and let dk = dsktk be the uncertain demand to be routed from .... maximum mismatch between capacities and demands, taking values in a.
Encoding network-constrained travel trajectories using routing algorithms
This study proposes a generic encoder for network-constrained travel trajectories, and it implements two encoders by combining the proposed generic encoder with two routing algorithms, which reduce the size of a travel trajectory's path along ...
Pablo Martinez Lerin; Daisuke Yamamoto; Naohisa Takahashi
Implementation of a cluster based routing protocol for mobile networks
We show the implementation and the simulation results of a hierarchical, cluster based routing protocol for mobile ad hoc networks using Parallel Virtual Machine (PVM). The network represented by a graph is partitioned into clusters by a graph ...
Geoffrey Marshall; Kayhan Erciyes
show that the optimal cost provided by volume routing is not less than the ... best case, we can estimate a set that contains most likely values for the demand.
Aerosol Route Synthesis of Copper Oxide Nanoparticles Using ...
Presentation Title, Aerosol Route Synthesis of Copper Oxide Nanoparticles Using Copper Nitrate Solution ... Phase Transformation Hardening by Using High -Power Direct Diode Laser ... Defect Energetics and Fission Product Transport in ZrC.
New Route to Nano Self-Assembly Print If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of themselves. An important advance...
Cooperative game-based routing approach for wireless sensor network
Aiming at the security and limited energy issues in wireless sensor network, this paper introduces a secure and energy-saving routing protocol based on cooperative game strategy. A novel incentive mechanism is proposed: all the nodes including the selfish ...
Fengyun Li; Guiran Chang; Lan Yao; Fuxiang Gao
Post-routing redundant via insertion with wire spreading capability
Redundant via insertion is a widely recommended technique to enhance the via yield and reliability. In this paper, the post-routing redundant via insertion problem is transformed to a mixed bipartite-conflict graph matching problem, and an efficient ...
Cheok-Kei Lei; Po-Yi Chiang; Yu-Min Lee
Opportunistic routing in multi-hop wireless networks
This thesis describes ExOR, an integrated routing and MAC protocol for bulk transfers in multi-hop wireless networks. ExOR exploits the broadcast nature of radios by making forwarding decisions based on which nodes receive ...
Biswas, Sanjit Zubin
Orthogonal Rendezvous Routing Protocol for Wireless Mesh Networks
Routing in multi-hop wireless networks involves the indirection from a persistent name (or ID) to a locator. Concepts such as coordinate space embedding help reduce the number and dynamism complexity of bindings and state ...
Cheng, Bow-Nan
Optimization Online - The Price of Atomic Selfish Ring Routing
May 27, 2008 ... The Price of Atomic Selfish Ring Routing. Bo Chen (b.chen ***at*** warwick.ac.uk ) Xujin Chen (xchen ***at*** amss.ac.cn) Xiaodong Hu (xdhu�...
Route-Based Control of Hybrid Electric Vehicles: Preprint
Today's hybrid electric vehicle controls cannot always provide maximum fuel savings over all drive cycles. Route-based controls could improve HEV fuel efficiency by 2%-4% and help save nearly 6.5 million gallons of fuel annually.
Gonder, J. D.
ExplicitRouteParam (GLASSHelp Version 2.0)
... Methods inherited from class java.util.AbstractList. iterator, listIterator, listIterator. ... iterator, listIterator, listIterator. Constructor Detail. ExplicitRouteParam ...
Implications of Wide-Area Geographic Diversity for Short- Term Variability of Solar Power
wind power . . . . . . . . . . . . . . . . . . . . . . . . . . .percentile of deltas in normalized wind power for individualchanges in normalized wind power between 10 geographically
Mills, Andrew
Book review K.J. Gaston, The Structure and Dynamics of Geographic
Book review K.J. Gaston, The Structure and Dynamics of Geographic Ranges, Oxford University Press a synthetic review of current knowledge on the structure of geographic ranges. The book is divided into five and opportunity to study the structure of geographic ranges, and states the objectives of the book. Chapters 2
Vazquez, Diego
Automatic representation of semantic abstraction of geographical data by means of classification
Providing Geographical Information Systems (GIS) with the mechanisms for processing geographical data based on their semantic abstraction is a task that at present is carried out in a number of research given their scope of applications. Tackling this ... Keywords: classification, geographical data, ontology, semantic
Rainer Larin Fonseca; Eduardo Garea Llano
Energy, Environmental & Economic Systems Analysis
Energy, Environmental & Economic Systems Analysis GTMax: A New Deregulated Power Market Analysis Tool Opportunity Decision and Information Sciences Division Center for Energy, Environmental & Economic hourly energy transactions, costs, and revenues. GTMax has a user-friendly geographical information
Kemner, Ken
Routing with end-to-end QoS guarantees in broadband networks
Keywords: QoS routing, constrained path optimization, hierarchical networks, rate-based schedulers, topology aggregation
Ariel Orda
Message-driven based energy-efficient routing in heterogeneous delay-tolerant networks
Delay-Tolerant Network (DTN) nodes are mostly energy-limited devices that run on battery power. DTN routing strategies on such resource-constrained nodes therefore need to be energy efficient. Contemporary routing protocols such as Two-Hop Routing (2HR) ... Keywords: dtn, energy efficiency, heterogeneity, performance modeling, routing
V. K. Chaithanya Manam; V. Mahendran; C. Siva Ram Murthy
Dynamic routing with inaccurate link state information in integrated IP-over-WDM networks
In this paper, we investigate the problem of dynamically routing bandwidth-guaranteed label switched paths (LSPs) in integrated IP-over-wavelength division multiplexed (WDM) networks with inaccurate link state information. To select a good path, a routing ... Keywords: GMPLS, IP-over-WDM, Integrated routing, QoS routing, Uncertainty modeling
J. Li; G. Mohan; E. Cheng Tien; K. C. Chua
Integrating service discovery with routing and session management for ad-hoc networks
In this paper, we propose GSR: a new routing and session management protocol for ad-hoc networks as an integral part of a service discovery infrastructure. Traditional approaches place routing at a layer below service discovery. While this distinction ... Keywords: Ad-hoc networks, Routing, Service discovery, Service-centric routing, Session management
Dipanjan Chakraborty; Anupam Joshi; Yelena Yesha
Assessing the cumulative effects of projects using geographic information systems
Systems that allow users to store and retrieve spatial data, provide for analyses of spatial data, and offer highly detailed display of spatial data are referred to as geographic information systems, or more typically, GIS. Since their initial usage in the 1960s, GISs have evolved as a means of assembling and analyzing diverse data pertaining to specific geographical areas, with spatial locations of the data serving as the organizational basis for the information systems. The structure of GISs is built around spatial identifiers and the methods used to encode data for storage and manipulation. This paper examines how GIS has been used in typical environmental assessment, its use for cumulative impact assessment, and explores litigation that occurred in the United States Federal court system where GIS was used in some aspect of cumulative effects. The paper also summarizes fifteen case studies that range from area wide transportation planning to wildlife and habitat impacts, and draws together a few lessons learned from this review of literature and litigation.
Atkinson, Samuel F., E-mail: firstname.lastname@example.com [Institute of Applied Science, University of North Texas, 1155 Union Circle 310559, Denton, TX 76203 (United States); Canter, Larry W., E-mail: firstname.lastname@example.com [Environmental Impact Training, P.O. Box 9143, Horseshoe Bay, TX 78657 (United States)
additional vessels can also be chartered on the spot market. A path-flow ...... On the other hand, if regional information is not specified in the problem, one can create an .... For a more detailed analysis of the tradeoff between speed ...... In Energy, Natural Resources and Environmental Economics, pages 427�439. Springer�...
Bayesian Networks and Geographical Information Systems for Environmental Risk Assessment for Oil and Gas Site Development
The objective of this work is to develop a Bayesian Network (BN) model to produce environmental risk maps for oil and gas site developments and to demonstrate the model�s scalability from a point to a collection of points. To reach this objective, a benchmark BN model was formulated as a �proof of concept� using Aquifers, Ecoregions and Land Use / Land Cover maps as local and independent input variables. This model was then used to evaluate the probabilistic geographical distribution of the Environmental Sensibility of Oil and Gas (O&G) developments for a given study area. A Risk index associated with the development of O&G operation activities based on the spatial environmental sensibility was also mapped. To facilitate the Risk assessment, these input variables (maps) were discretized into three hazard levels: high, moderate and low. A Geographical Information System (GIS) platform was used (ESRI ArcMap 10), to gather, modify and display the data for the analysis. Once the variables were defined and the hazard data was included on feature classes (layer shapefile format), Python 2.6 software was used as the computational platform to calculate the probabilistic state of all the Bayesian Network�s variables. This allowed to define Risk scenarios both on prognostic and diagnostic analysis and to measure the impact of changes or interventions in terms of uncertainty. The resulting Python � ESRI ArcMap computational script was called �BN+GIS, which populated maps describing the spatial variability of the states of the Environmental Sensibility and of the corresponding Risk index. The latter in particular, represents a tool for decision makers to choose the most suitable location for placing a drilling rig, since it integrates three fundamental environmental variables. Also, results show that is possible to back propagate the information from the Environmental Sensibility to define the inherent triggering scenarios (hazard variables). A case of study is presented to illustrate the applicability of the proposed methodology on a specific geographical setting. The Barnett Shale was chosen as a benchmark study area because sufficient information on this region was available, and the importance that it holds on the latest developments of unconventional plays in the country. The main contribution of this work relies in combining Bayesian Networks and GIS to define environmental Risk scenarios that can facilitate decision-making for O&G stakeholders such as land owners, industry operators, regulators and Non-Governmental Organizations (NGOs), before and during the development of a given site.
Varela Gonzalez, Patricia Ysolda
Design and analysis of an approximation algorithm for Stackelberg ...
Mar 17, 2003 ... analysis of Stackelberg problems has been applied to job scheduling and to network design by Roughgarden [16, 17], to network routing by�...
Routing Technique Based on Clustering for Data Duplication Prevention in Wireless Sensor Network
Wireless Sensor Networks is important to nodes energy consumption for long activity of sensor nodes because nodes that compose sensor network are small size, and battery capacity is limited. For energy consumption decrease of sensor nodes, sensor networks routing technique is divided by flat routing and hierarchical routing technique. Specially, hierarchical routing technique is energy efficient routing protocol to pare down energy consumption of whole sensor nodes and to scatter energy consumption of sensor nodes by forming cluster and communicating with cluster head. but though hierarchical routing technique based on clustering is advantage more than flat routing technique, this is not used for reason that is not realistic. The reason that is not realistic is because hierarchical routing technique does not consider data transmission radius of sensor node in actually. so this paper propose realistic routing technique base on clustering.
Kim, Boseung; Shin, Yongtae
3. Files in this numeric data package 3. Files in this numeric data package File File size Projection number File name (kbytes) File description type File type 1 ndp068.txt 94 Descriptive file (i.e., this n/a ASCII text document) 2 Biomass.e00 59,468 Exported ARC/INFO gridded Albers ARC/INFO (3.75-km) estimates of actual export GRID and potential biomass carbon 3 Biomassx.e00 1,534 Exported ARC/INFO gridded Geographic ARC/INFO (0.25-degree) estimates of export GRID actual and potential biomass carbon 4 ac.dat 24,607 ASCII file of ungenerated Albers GRIDASCII ARC/INFO gridded (3.75- ASCII data
OpenEI:Projects/Geographic Pages | Open Energy Information
Pages Pages Jump to: navigation, search This page is used to coordinate the OpenEI project's efforts to optimize our geographic pages. In other words, this project seeks to define and implement the "perfect" page for: Country Energy Profile Pages State Energy Profile Pages City Energy Profile Pages County Energy Profile Pages Congressional District Energy Profile Pages Contents 1 Driving OpenEI Traffic and Impact 2 Tasks 3 Targeted Contents 4 Examples 5 Participants Driving OpenEI Traffic and Impact We believe that improving these pages could lead to significant gains in OpenEI traffic and usefulness. It is very difficult for us to reach a top spot in Google searches for very broad terms like "energy" or "solar" (although do strive to make that happen over time). It is more realistic
Hierarchical path planning for situated agents in informed virtual geographic environments
Multi-Agent Geo-Simulation (MAGS) is a modelling and simulation paradigm which involves a large number of autonomous situated agents of various extents evolving in, and interacting with, an explicit description of a geographic environment called a Virtual ... Keywords: autonomous situated agents (ASA), geographic information system (GIS), hierarchical path planning (HPP), informed virtual geographic environment (IVGE), multi-agent geo-simulation (MAGS), optimisation, situated reasoning (SR)
Mehdi Mekni
Worldwide interest in the deployment of photovoltaic generation (PV) is rapidly increasing. Operating experience with large PV plants, however, demonstrates that large, rapid changes in the output of PV plants are possible. Early studies of PV grid impacts suggested that short-term variability could be a potential limiting factor in deploying PV. Many of these early studies, however, lacked high-quality data from multiple sites to assess the costs and impacts of increasing PV penetration. As is well known for wind, accounting for the potential for geographic diversity can significantly reduce the magnitude of extreme changes in aggregated PV output, the resources required to accommodate that variability, and the potential costs of managing variability. We use measured 1-min solar insolation for 23 time-synchronized sites in the Southern Great Plains network of the Atmospheric Radiation Measurement program and wind speed data from 10 sites in the same network to characterize the variability of PV with different degrees of geographic diversity and to compare the variability of PV to the variability of similarly sited wind. The relative aggregate variability of PV plants sited in a dense 10 x 10 array with 20 km spacing is six times less than the variability of a single site for variability on time scales less than 15-min. We find in our analysis of wind and PV plants similarly sited in a 5 x 5 grid with 50 km spacing that the variability of PV is only slightly more than the variability of wind on time scales of 5-15 min. Over shorter and longer time scales the level of variability is nearly identical. Finally, we use a simple approximation method to estimate the cost of carrying additional reserves to manage sub-hourly variability. We conclude that the costs of managing the short-term variability of PV are dramatically reduced by geographic diversity and are not substantially different from the costs for managing the short-term variability of similarly sited wind in this region.
Mills, Andrew; Wiser, Ryan
Ship routing and scheduling with cargo coupling and synchronization constraints
The purpose of this paper is to introduce and solve a planning problem faced by shipping companies operating in a special segment of tramp shipping called project shipping. Project shipping differs from other more traditional tramp segments because the ... Keywords: Path-flow, Ship routing and scheduling, Synchronization
Henrik Andersson; Jon M. Duesund; Kjetil Fagerholt
Minimum power allocation for cooperative routing in multihop wireless networks
Due to the limited energy supplies of nodes, in many applications like wireless sensor networks, energy-efficiency is crucial for extending the lifetime of these networks. We study the routing problem for multihop wireless ad hoc networks based on cooperative ...
Behrouz Maham; Are Hj�rungnes
Energy-balanced cooperative routing in multihop wireless networks
Cooperative communication (CC) allows multiple nodes to simultaneously transmit the same packet to the receiver so that the combined signal at the receiver can be correctly decoded. Since the CC can reduce the transmission power and extend the transmission ... Keywords: Cooperative routing, Energy balancing, Multihop networks
Siyuan Chen; Yang Li; Minsu Huang; Ying Zhu; Yu Wang
BGP-lens: patterns and anomalies in internet routing updates
The Border Gateway Protocol (BGP) is one of the fundamental computer communication protocols. Monitoring and mining BGP update messages can directly reveal the health and stability of Internet routing. Here we make two contributions: firstly we ... Keywords: BGP monitoring, anomalies, patterns, self-similarity
B. Aditya Prakash; Nicholas Valler; David Andersen; Michalis Faloutsos; Christos Faloutsos
Survey A survey of routing protocols for smart grid communications
With the recent initiatives to upgrade the existing power grid to the Smart Grid (SG), there has been a significant interest in the design and development of an efficient communications infrastructure for connecting different components of the SG. In ... Keywords: HANs, NANs, Routing, Smart grid, Smart grid communications network, WANs
Nico Saputro; Kemal Akkaya; Suleyman Uludag
Energy-Efficient Networking Energy-Aware Routing Protocol
from to a physical server in another DC, when, the second DC has access to the renewable energy sourcesEnergy-Efficient Networking Energy-Aware Routing Protocol Minimum Power Topology Energy-Aware Admission Control Management of Resources in the Liquid Network Summary Energy Efficient Protocols in Self
Tobagi, Fouad
Moving routing protocols to the user space in MANET middleware
Mobile Ad Hoc Network (MANET) middleware must be aware of the underlying multi-hop topology to self-adapt and to improve its communication efficiency. For this reason, many approaches rely on specific cross-layer communications to interact with the network ... Keywords: Group communication, Middleware, Mobile Ad Hoc Networks, Routing protocols
Pedro Garc�a L�pez; Ra�l Gracia Tinedo; Josep M. Ban�s Alsina
Maximizing Battery Life Routing in Wireless Ad Hoc Networks
Maximizing Battery Life Routing in Wireless Ad Hoc Networks Weifa Liang Department of Computer Abstract--Most wireless ad hoc networks consist of mobile devices which operate on batteries. Power con, for an ad hoc network consisting of the same type of battery mobile nodes, two approximation algorithms
Liang, Weifa
Hierarchical-Battery Aware Routing in Wireless Sensor Networks
Hierarchical-Battery Aware Routing in Wireless Sensor Networks Ravi Musunuri Jorge A. Cobb monitoring applications. Pulsed battery discharge from the nodes prolongs the battery capacity as compared to constant discharge. Idle time between the pulses of discharge helps in recovering the discharged battery
Cobb, Jorge Arturo
Feedstock Routing in the ExxonMobil Downstream Sector
ExxonMobil annually transports significant volumes of vacuum gas oil (VGO) from supply points in Europe to refineries in the United States. Optimizing these transportation costs by using modern mathematical programming technology can provide significant ... Keywords: inventory routing, maritime shipping, refinery feedstocks
Kevin C. Furman; Jin-Hwa Song; Gary R. Kocis; Michael K. McDonald; Philip H. Warrick
Power Savings in Packet Networks via Optimised Routing
This paper examines the use of a gradient-based algorithm for Quality of Service (QoS) and power minimisation in wired networks to result on reduced energy consumption. Two distinct schemes, conventional shortest-path routing and an autonomic algorithm ... Keywords: QoS, computer networks, energy optimisation
Erol Gelenbe; Christina Morfopoulou
An Integrated Scenario-Based Approach for Robust Aircraft Routing ...
introduced a new algorithm to accurately calculate and minimize the cost of propagated .... allows an airline to incorporate historical primary delay information into the .... Maintenance feasible routings are represented as columns of an m � nR binary matrix ...... Transportation Research Board 87th Annual Meeting, 2008.
, during the rescue attempts in the World Trade Center disaster site, the Wireless Emergency Response TeamEnergy Efficient Routing in Ad Hoc Disaster Recovery Networks Gil Zussman and Adrian Segall, energy conserving, power aware, disaster recovery networks, ad hoc networks, smart badges, IEEE 802.15 1
Conflict-free container routing in mesh yard layouts
Container terminals play an important role in global cargo transportation and they have become an essential intermodal interface between the sea and the land. In the container terminal, the service area is often arranged into rectangular blocks, which ... Keywords: Conflict-free, Container, Mesh yard layout, Number theory, Routing algorithm, Time requirement
Jianyang Zeng; Wen-Jing Hsu
Towards adaptable ad hoc networks: the routing experience
Network users not only demand new and versatile application support by the networks but they themselves are becoming part of the network (network routers, caches, processors, etc) by contributing their resources to it and being engaged in ad hoc networking ... Keywords: ad hoc, adaptability, autonomic, routing, wireless
Cesar A. Santivanez; Ioannis Stavrakakis
Underwater wireless sensor networks: routing issues and future challenges
With the advancements of acoustic modem technology that supports better data rates with reliable communications, current research focuses on algorithms those can support such technology in a better way. During the last two decades, many protocols suggested ... Keywords: acoustic communicaitons, intermettent networks, routing protocols, underwater sensor networks
Muhammad Ayaz; Azween Abdullah
Autonomous mobile agent routing for efficient server resource allocation
Mobile agents are becoming increasingly important in the highly distributed applications frameworks seen today. Their routing/dispatching from node to node is a very important issue as we need to safeguard application efficiency, achieve better load ... Keywords: Bounded rationality-Santa Fe Bar Problem, Efficient resource utilization, Mobile agents
Vasileios Baousis; Stathes Hadjiefthymiades; George Alyfantis; Lazaros Merakos
and decomposition, GRIP demonstrates tremendous improvement in wirelength, with the same or lower usage in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Electrical and Computer PROGRAMMING APPROACH TO GLOBAL ROUTING Tai-Hsuan Wu Azadeh Davoodi, Assistant Professor, Electrical
Davoodi, Azadeh
The integrated production---inventory---distribution---routing problem
The integration of production and distribution decisions presents a challenging problem for manufacturers trying to optimize their supply chain. At the planning level, the immediate goal is to coordinate production, inventory, and delivery to meet customer ... Keywords: Allocation model, Inventory, Lot-sizing, Production planning, Tabu search, Vehicle routing problem
Jonathan F. Bard; Narameth Nananukul
A novel droplet routing algorithm for digital microfluidic biochips
One of the recent areas of research interest is the use of microfluidics for building up biochips, the digital microfluidic biochips (DMFB). This paper deals with a challenging problem related to the design of DMFB. Specifically the design problem considered ... Keywords: biochips, layout, microfluidics, placement and routing
Pranab Roy; Hafizur Rahaman; Parthasarathi Dasgupta
Routing in sparse splitting optical networks with multicast traffic
In this paper, we investigate the problem of Multicast Routing in Sparse Splitting Networks (MR-SSN). Given a network topology with the multicast capable nodes distributed uniformly throughout the network, and a multicast session, the MR-SSN problem ... Keywords: Steiner tree, Tabu search, light splitting, multicast, power issues
Shuguang Yan; Jitender S. Deogun; Maher Ali
Localized power-aware routing in linear wireless sensor networks
Energy-efficency is a key concern when designing protocols for wireless sensor networks (WSN). This is of particular importance in commercial applications where demonstrable return on investment is a crucial factor. One such commercial application that ... Keywords: energy efficiency, linear topology, localized protocol, routing, wireless sensor network
Marco Zimmerling; Waltenegus Dargie; Johnathan M. Reason
Lifetime based routing algorithm in emergency object tracking
Sensor networks have many applications, a typical setting is in nature environment monitoring, such as forest fire, tsunami, and earthquake. In order to be easily deployed in this environment, sensor device is design to have small form factor, and as ... Keywords: betweenness, network model, object tracking, routing algorithm
Yihjia Tsai; Wenfa Huang; Chengchin Lin
Semantic Web-Based Management of Routing Configurations
Today, network operators typically reason about network behaviour by observing the effects of a particular configuration in operation. This configuration process typically involves logging configuration changes and rolling back to a previous version ... Keywords: BGP, Conflict detection, Network management, Policy languages, Routing policy, Semantic web
F�lix J. Garc�a Clemente; Jose M. Alcaraz Calero; Jorge Bernal Bernab�; Juan Manuel Mar�n P�rez; Gregorio Mart�nez P�rez; Antonio F. G�mez Skarmeta
Optimal Routing and Scheduling in Multihop Wireless Renewable Energy Networks
Optimal Routing and Scheduling in Multihop Wireless Renewable Energy Networks MHR. Khouzani-constrained wireless ad-hoc networks where nodes are powered by renewable energy sources. We take into account the fact that renewable energy harvesting processes are unpredictable and stochastic in nature typically depending
Sarkar, Saswati
A Co-optimization Routing Algorithm in Wireless Sensor Network
The MACORA is presented to solve the collision between mobile agent and multicast suppression in channel competitive process. With two-layer graph model, the channel converter problem in the dual-channel wireless sensor networks can be simplified into ... Keywords: Co-optimization, Dual-channel, Mobile agent, Packet transmission, The optimal route Restoring, Wireless sensor networks
Ran Jin, Chunhai Kou, Ruijuan Liu, Yefeng Li
Group leader election under link-state routing
In this work, we place a long-established distributed computing problem in a new context. Specifically, the group leader election problem is studied ''inside the network,'' meaning that participants in the election process are network switches/routers, ... Keywords: Asynchronous transfer mode networks, Internet, Leader election, Link-state routing, Multicast communication
Y. Huang; P. K. Mckinley
A Mercurial Route to a Cobalt Dihydrogen Complex
Recent results by Heinekey and co-workers provide evidence for an unusual route to a cobalt dihydrogen complex. This work was supported by the US Department of Energy Basic Energy Sciences' Chemical Sciences, Geosciences & Biosciences Division. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.
Bullock, R. Morris
Routing for power minimization in the speed scaling model
We study network optimization that considers power minimization as an objective. Studies have shown that mechanisms such as speed scaling can significantly reduce the power consumption of telecommunication networks by matching the consumption of each ... Keywords: power saving, routing, speed scaling, wireline networks
Matthew Andrews; Antonio Fern�ndez Anta; Lisa Zhang; Wenbo Zhao
Aviation Safety and Air Traffic Management Analysis - Center...
support tools. Visualization and analysis of diverse data sources including flight track, weather, airport, aircraft, ATM elements and geographic data supports aviation safety...
NREL: Dynamic Maps, GIS Data, and Analysis Tools - Hydrogen Maps
Donna Heimiller (2005). For more information on hydrogen resources, access the Hydrogen Energy Analysis and Tools site. For Geographic Information System (GIS) hydrogen resource...
Geographic Perspective on the Current Biomass Resource Availability in the United States
The objective of this report is to estimate the biomass resources available in the United States and map the results using geographic information systems (GIS).
Milbrandt, A.
Multivariate geographic clustering on the world`s first zero price/performance parallel computer
The authors present an application of multivariate non-hierarchical statistical clustering to geographic environmental data from the 48 conterminous US in order to produce maps of regions of ecological similarity, called ecoregions. These maps represent more realistic and finer scale regionalizations than those generated by the traditional technique: an expert with a marker pen. Nine input variables thought to affect the growth of vegetation are clustered at a resolution of one square kilometer. These data represent over 7.7 million map cells in a 9-dimensional data space. Denied the funding for the construction of a Beowulf-style cluster of new PCs on which to perform this analysis, the authors built a 126-node cluster out of surplus PCs--primarily Intel 486 CPUs with a host of different motherboards and connected via 10 Mb/s ethernet--obtained at no cost from federal facilities in Oak Ridge, Tennessee. The authors describe the construction of this unique and heterogeneous cluster. Running RedHat Linux with the GNU compiles and both PVM and MPI, this cluster, aptly named the Stone SouperComputer, is the first parallel computer with a price/performance ratio of zero. After developing a serial version of the iterative statistical clustering algorithm, the authors developed a parallel version of the algorithm which uses the MPI message passing routines. The parallel algorithm uses a classical master/slave organization, performs dynamic load balancing for reasonable performance on heterogeneous clusters, and saves intermediate results for easy restarting in case of hardware failure. In addition to being run on the Stone SouperComputer, the parallel algorithm was tested on other parallel platforms without code modification. Finally, the results of the geographic clustering are presented.
Hoffman, F.M.; Hargrove, W.W. [Oak Ridge National Lab., TN (United States); Schultz, A.J. [Univ. of Tulsa, OK (United States)
A new hybrid traffic engineering routing algorithm for bandwidth guaranteed traffic
This paper presents a new hybrid traffic engineering routing algorithm for bandwidth guaranteed traffic. Former traffic engineering routing algorithms mainly optimize one of the three objectives: minimizing the hop count, balancing the load and minimizing ...
Zhaowei Meng; Jinshu Su; Stefano Avallone
An intelligent routing approach using genetic algorithms for quality graded network
Intelligent routing in networks has opened up many challenges in modelling and methods, over the past decade. Many techniques do exist for routing on such an environment where path determination was carried out by advertisement, position and near-optimum ...
T.R. Gopalakrishnan Nair; Kavitha Sooda
S4: small state and small stretch routing protocol for large wireless sensor networks
Routing protocols for wireless sensor networks must address the challenges of reliable packet delivery at increasingly large scale and highly constrained node resources. Attempts to limit node state can result in undesirable worst-case routing performance, ...
Yun Mao; Feng Wang; Lili Qiu; Simon S. Lam; Jonathan M. Smith
Synchronization in Vehicle Routing---A Survey of VRPs with Multiple Synchronization Constraints
This paper presents a survey of vehicle routing problems with multiple synchronization constraints. These problems exhibit, in addition to the usual task covering constraints, further synchronization requirements between the vehicles, concerning spatial, ... Keywords: coordination, survey, synchronization, trailer, transshipment, vehicle routing
Michael Drexl
A Physically Based Runoff Routing Model for Land Surface and Earth System Models
A new physically based runoff routing model, called the Model for Scale Adaptive River Transport (MOSART), has been developed to be applicable across local, regional, and global scales. Within each spatial unit, surface runoff is first routed ...
Hongyi Li; Mark S. Wigmosta; Huan Wu; Maoyi Huang; Yinghai Ke; Andr� M. Coleman; L. Ruby Leung
Evaluating the antrim shale formation using a Geographic Information System
The Antrim Shale formation is currently the most active exploration play in the Michigan basin. With more than 3500 producing wells, the Antrim Shale has significantly increased Michigan's natural gas reserves. The Antrim Shale now accounts for over 50% of Michigan's daily natural gas production. C-Map is a vector-based Geographic Information System developed at Michigan State University. It is used throughout Michigan, primarily by state and local government agencies, to assist in programs that range from resource management to civic planning. Although not originally designed for oil and gas exploration, many of the features found in C-Map are ideally suited to this task. Exploration functions performed on C-Map include the creation of base maps, data posting, and thematic mapping. Interfaces written into C-MAP also allow for computer gridding, contouring, and 3-D modeling using commercial software designed for this purpose. C-MAP can also be used in conjunction with Michigan's Resource Inventory System, the digital land-use database developed by the Michigan Department of Natural Resources. The unconventional nature of the Antrim Shale reservoir, along with the large volume of wells drilled and data collected have combined to make the Antrim Shale a very difficult play to evaluate. C-Map, with its analytical tools, low cost, and compatibility with an existing digital land-use database for Michigan is an ideal exploration tool for companies and individuals attempting to enhance their understanding of this challenging play.
Carlton, R.B. (Nomeco Oil Gas Co., Jackson, MI (United States))
Value of Geographic Diversity of Wind and Solar: Stochastic Geometry Approach; Preprint
Based on the available geographically dispersed data for the continental U.S. (excluding Alaska), we analyze to what extent the geographic diversity of these resources can offset their variability. A geometric model provides a convenient measure for resource variability, shows the synergy between wind and solar resources.
Diakov, V.
Exploring phrasal context and error correction heuristics in bootstrapping for geographic named entity annotation
Geographic named entities can be classified into many sub-types that are useful for applications such as information extraction and question answering. In this paper, we present a high-performance bootstrapping algorithm with error correction heuristics ... Keywords: Bootstrapping, Error correcting heuristics, Geographic named entity annotation, Location normalization, Phrasal context
Geographic Information System (GIS) Database Development, Integration, and Maintenance for the Iowa Department of
Geographic Information System (GIS) Database Development, Integration, and Maintenance for the Iowa-related fields. #12;Geographic Information System (GIS) Database Development, Integration, and Maintenance to limit data management and maintenance in the central office. A single database table would exist
Beresnev, Igor
Geographic Window Sizes Applied to Remote Sensing Sea Surface Temperature Front Detection
The effects of using a geographic window size with an existing edge-detection technique for the detection of thermal fronts in sea surface temperature (SST) imagery are investigated. The size of a geographic window is not constant but instead is ...
Scott F. Diehl; Judith W. Budd; David Ullman; Jean-Fran�ois Cayula
A Branch-and-Price Method for a Liquefied Natural Gas Inventory Routing Problem
We consider a maritime inventory routing problem in the liquefied natural gas (LNG) business, called the LNG inventory routing problem (LNG-IRP). Here, an actor is responsible for the routing of the fleet of special purpose ships, and the inventories ... Keywords: branch-and-price, column generation, maritime transportation
Roar Gr�nhaug; Marielle Christiansen; Guy Desaulniers; Jacques Desrosiers
Coverage preserved optimal routing protocol for improving the quality of service in wireless sensor networks
In wireless sensor network, there are many hurdles takes place in providing quality of service routing to a desired level. The majority of routing protocols in wireless sensor networks concentrates only on energy efficiency as a prime factor, and only ... Keywords: cluster-head, coverage, energy efficiency, lifetime, multi-path routing, quality of service, self-scheduling
B. Paramasivan; K. Mohaideen Pitchai; D. Usha; S. Radha Krishnan
Transgenetic algorithm for the periodic mobile piston pump unit routing problem with continuous oil replenishment
This paper reports the application of a transgenetic algorithm to the periodic mobile piston pump unit routing problem with continuous oil replenishment, a complex problem that occurs in the exploitation of onshore oil fields. The transgenetic algorithms ... Keywords: continuous oil replenishment, evolutionary algorithm, mobile pumps, onshore oil fields, periodic mobile piston pump unit routing, piston pumps, routing, scheduling, transgenetic algorithms
Marco Cesar Goldbarg; Elizabeth Ferreira Gouvea Goldbarg; Herbert De Melo Duarte
Revisiting routing control platforms with the eyes and muscles of software-defined networking
Prior work on centralized Routing Control Platform (RCP) has shown many benefits in flexible routing, enhanced security, and ISP connectivity management tasks. In this paper, we discuss RCPs in the context of OpenFlow/SDN, describing potential use cases ... Keywords: bgp, openflow, routing architecture, sdn, virtualization
Christian Esteve Rothenberg; Marcelo Ribeiro Nascimento; Marcos Rogerio Salvador; Carlos Nilton Araujo Corr�a; Sidney Cunha de Lucena; Robert Raszuk
A prioritized battery-aware routing protocol for wireless ad hoc networks
It is a challenge area in the field of ad hoc networks to support prioritized routing for time sensitive applications, such as multimedia communications, IP telephony and interactive games. However the existing protocols did not consider the special ... Keywords: battery models, battery-awareness, energy efficiency, prioritized routing, routing protocols, wireless ad hoc networks
Chi Ma; Yuanyuan Yang
A hybrid GA-TS algorithm for open vehicle routing optimization of coal mines material
In the open vehicle routing problem (OVRP), the objective is to minimize the number of vehicles and the total distance (or time) traveled. This study primarily focuses on solving an open vehicle routing problem (OVRP) by applying a novel hybrid genetic ... Keywords: Coal mine material, Genetic algorithms, Hybrid, Open vehicle routing problem, Optimize, Tabu search
Shiwei Yu; Chang Ding; Kejun Zhu
Solving vehicle routing problems using an enhanced clarke-wright algorithm: a case study
A vehicle routing problem (VRP) is an optimization problem encountered in many applications some of them even not directly related to vehicle routing. For a given fleet of vehicles (or service personnel) the goal of a VRP is to seek delivering products ... Keywords: case study, decision support, savings algorithm, vehicle routing problem
Buyang Cao
The exact solution of several classes of inventory-routing problems
In order to be competitive companies need to take advantage of synergistic interactions between different decision areas. Two of these are related to the distribution and inventory management processes. Inventory-Routing Problems (IRPs) arise when inventory ... Keywords: Branch-and-cut, Consistency, Inventory management, Inventory-routing, Multi-vehicle, Transshipment, Vehicle routing
Leandro C. Coelho; Gilbert Laporte
A memetic algorithm for the multi-compartment vehicle routing problem with stochastic demands
The multi-compartment vehicle routing problem (MC-VRP) consists of designing transportation routes to satisfy the demands of a set of customers for several products that, because of incompatibility constraints, must be loaded in independent vehicle compartments. ... Keywords: Evolutionary algorithms, Memetic algorithms, Multi-compartment vehicle routing problem, Stochastic demands
Jorge E. Mendoza; Bruno Castanier; Christelle Gu�ret; Andr�s L. Medaglia; Nubia Velasco
A web spatial decision support system for vehicle routing using Google Maps
This article presents a user-friendly web-based spatial decision support system (wSDSS) aimed at generating optimized vehicle routes for multiple vehicle routing problems that involve serving the demand located along arcs of a transportation network. ... Keywords: Google MapsTM, Heuristics, Spatial decision support systems, Vehicle routing
Lu�s Santos; Jo�o Coutinho-Rodrigues; Carlos Henggeler Antunes
An ant swarm-inspired energy-aware routing protocol for wireless ad-hoc networks
Primitive routing protocols for ad-hoc networks are ''power hungry'' and can therefore consume considerable amount of the limited amount of battery power resident in the nodes. Thus, routing in ad-hoc networks is very much energy-constrained. Continuous ... Keywords: Ad-hoc networks, Ant colony optimization, Energy-efficiency, Performance evaluation, Routing, Simulation
Sudip Misra; Sanjay K. Dhurandher; Mohammad S. Obaidat; Pushkar Gupta; Karan Verma; Prayag Narula
Invited Review: Industrial aspects and literature survey: Combined inventory management and routing
This paper describes industrial aspects of combined inventory management and routing in maritime and road-based transportation, and gives a classification and comprehensive literature review of the current state of the research. The literature is contrasted ... Keywords: Inventory management, Inventory routing, Vehicle routing
Henrik Andersson; Arild Hoff; Marielle Christiansen; Geir Hasle; Arne L�kketangen
Oblivious routing for fat-tree based system area networks with uncertain traffic demands
Fat-tree based system area networks have been widely adopted in high performance computing clusters. In such systems, the routing is often deterministic and the traffic demand is usually uncertain and changing. In this paper, we study routing performance ... Keywords: fat-tree, oblivious routing, system area networks
Xin Yuan; Wickus Nienaber; Zhenhai Duan; Rami Melhem
Adaptive and deadlock-free tree-based multicast routing for networks-on-chip
This paper presents the first synthesizable network-on-chip (NoC) based on a mesh topology, which supports adaptive and deadlock-free tree-based multicast routing without virtual channels. The deadlock-free routing algorithms for unicast and multicast ... Keywords: network-on-chip (NoC), synchronous parallel pipeline, tree-based multicast routing, wormhole packet switching
Faizal Arya Samman; Thomas Hollstein; Manfred Glesner
Swarm intelligence based routing protocol for wireless sensor networks: Survey and future directions
Swarm intelligence is a relatively novel field. It addresses the study of the collective behaviors of systems made by many components that coordinate using decentralized controls and self-organization. A large part of the research in swarm intelligence ... Keywords: Ant colony routing, Bee-inspired routing, Routing protocols, Swarm intelligence, Wireless sensor networks
Muhammad Saleem; Gianni A. Di Caro; Muddassar Farooq
Safe Routes to School�Local School Project: A health evaluation at 10 low-income schools
with Active Commuting to School Among US Adolescents.2004. Safe Routes to School: Practice and Promise. (DOT-HS-Director), Safe Routes to School National Partnership Design
Cooper, Jill F MSW; McMillan, Tracy MPH, PHD
A New Route to Nano Self-Assembly Print A New Route to Nano Self-Assembly Print If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of themselves. An important advance toward this goal has been achieved by researchers who have found a simple and yet powerfully robust way to induce nanoparticles to assemble themselves into complex arrays. By adding specific types of small molecules to mixtures of nanoparticles and polymers, they were able to direct the self-assembly of the nanoparticles into arrays of one, two, and even three dimensions with no chemical modification of either the nanoparticles or the block copolymers. In addition, the application of external stimuli, such as light and/or heat, can be used to further direct the assemblies of nanoparticles for even finer and more complex structural details, a result verified by small-angle x-ray scattering (SAXS) at the ALS.
Energy-Efficient Cooperative Routing in BER Constrained Multihop Networks
Abstract � Due to the limited energy supplies of nodes, in many applications like wireless sensor networks energy-efficiency is crucial for extending the lifetime of these networks. We study the routing problem for multihop wireless ad hoc networks based on cooperative transmission. The source node wants to transmit messages to a single destination. Other nodes in the network may operate as relay nodes. In this paper, we propose a cooperative multihop routing for the purpose of power savings, constrained on a required bit error rate (BER) at the destination. We derive analytical results for line and grid network topologies. It is shown that energy savings of 100 % are achievable in line and grid networks with a large number of nodes for BER =10 ?4 constraint at the destination. I.
Behrouz Maham; M�rouane Debbah; Are Hj�rungnes
I/O Congestion Avoidance via Routing and Object Placement
As storage systems get larger to meet the the demands of petascale systems, careful planning must be applied to avoid congestion points and extract the maximum performance. In addition, the large size of the data sets generated by such systems makes it desirable for all compute resources in a center to have common access to this data without needing to copy it to each machine. This paper describes a method of placing I/O close to the storage nodes to minimize contention on Cray's SeaStar2+ network, and extends it to a routed Lustre configuration to gain the same benefits when running against a center-wide file system. Our experiments show performance improvements for both direct attached and routed file systems.
Dillow, David A [ORNL; Shipman, Galen M [ORNL; Oral, H Sarp [ORNL; Zhang, Zhe [ORNL
Query Routing in Large-scale Digital Library Systems
Modern digital libraries require user-friendly and yet responsive access to the rapidly growing, heterogeneous, and distributed collection of information sources. However, the increasing volume and diversity of digital information available online have led to a growing problem that conventional data management systems do not have, namely #nding which information sources out of many candidate choices are the most relevant to answer a given user query.We refer to this problem as the query routing problem.
Ling Liu
Period doubling route to chaos in Taylor-Green dynamo
We perform spectral simulations of dynamo for magnetic Prandtl number of one with Taylor-Green forcing. We observe dynamo transition through a supercritical pitchfork bifurcation. Beyond the transition, the numerical simulations reveal complex dynamo states with windows of constant, periodic, quasiperiodic, and chaotic magnetic field configurations. For some forcing amplitudes, multiple attractors were obtained for different initial conditions. We show that one of the chaotic windows follows the period-doubling route to chaos.
R. Yadav; M. Chandra; M. K. Verma; S. Paul; P. Wahi
A New Route to Nano Self-Assembly A New Route to Nano Self-Assembly A New Route to Nano Self-Assembly Print Wednesday, 24 February 2010 00:00 If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of themselves. An important advance toward this goal has been achieved by researchers who have found a simple and yet powerfully robust way to induce nanoparticles to assemble themselves into complex arrays. By adding specific types of small molecules to mixtures of nanoparticles and polymers, they were able to direct the self-assembly of the nanoparticles into arrays of one, two, and even three dimensions with no chemical modification of either the nanoparticles or the block copolymers. In addition, the application of external stimuli, such as light and/or heat, can be used to further direct the assemblies of nanoparticles for even finer and more complex structural details, a result verified by small-angle x-ray scattering (SAXS) at the ALS.
Network harness: bundles of routes in public transport networks
Public transport routes sharing the same grid of streets and tracks are often found to proceed in parallel along shorter or longer sequences of stations. Similar phenomena are observed in other networks built with space consuming links such as cables, vessels, pipes, neurons, etc. In the case of public transport networks (PTNs) this behavior may be easily worked out on the basis of sequences of stations serviced by each route. To quantify this behavior we use the recently introduced notion of network harness. It is described by the harness distribution P(r,s): the number of sequences of s consecutive stations that are serviced by r parallel routes. For certain PTNs that we have analyzed we observe that the harness distribution may be described by power laws. These power laws observed indicate a certain level of organization and planning which may be driven by the need to minimize the costs of infrastructure and secondly by the fact that points of interest tend to be clustered in certain locations of a city. T...
Berche, B; Holovatch, T
Three-Dimenisional Routing in Underwater Acoustic Sensor Networks
Underwater sensor networks will find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, and tactical surveillance applications. In this paper, the problem of data gathering in a 3D underwater acoustic sensor network is investigated at the network layer, by considering the interactions between the routing functions and the characteristics of the underwater channel. Two routing algorithms are proposed for delay-insensitive and delay-sensitive sensor network applications, respectively. The proposed distributed algorithm for delay-insensitive applications allows each node to select its next hop, with the objective of minimizing the energy consumption taking into account the varying condition of the underwater channel. A centralized algorithm for delay-sensitive routing in an underwater environment is proposed. The solution relies on topology information gathered by a surface station, which optimally configures the network paths. The proposed algorithms are shown to achieve the performance targets of the underwater environment by means of simulation. Categories and Subject Descriptors:
Dario Pompili; Tommaso Melodia
A New Route to Nanoscale Conducting Channels in Insulating Oxides
A New Route to Nanoscale A New Route to Nanoscale Conducting Channels in Insulating Oxides A New Route to Nanoscale Conducting Channels in Insulating Oxides Print Wednesday, 29 August 2012 00:00 Two-dimensional electron gases (2DEGs)-narrow conducting channels at the surfaces and interfaces of semiconductor materials-are the bedrock of conventional electronics. The startling 2004 discovery that such 2DEGs could be engineered at the interface between two insulating transition-metal oxides, SrTiO3 and LaAlO3, initiated a worldwide effort to harness the functionality of oxide materials for advanced electronic applications. Now, an international collaboration working at the ALS has shown that the interface is not required. Using only intense synchrotron light, the group has been able to create and control 2DEGs at the bare surfaces of the insulating oxides SrTiO3 and KTaO3. As well as suggesting a potential methodology to spatially pattern 2DEGs in a wide variety of complex oxides, this discovery opens a new avenue for spectroscopic investigation of these novel electronic systems.
NREL: Dynamic Maps, Geographic Information System (GIS) Data...
on a rooftop analysis project to determine the potential rooftop space available for solar panel installation. She runs the first-return raster against the slope, aspect, and...
has the space and resource to generate clean energy. NREL analysts conducted a spatial analysis to calculate energy technical potential for six different renewable technologies....
National Carbon Sequestration Database and Geographic Information System (NatCarb)
This annual and final report describes the results of the multi-year project entitled 'NATional CARBon Sequestration Database and Geographic Information System (NatCarb)' (http://www.natcarb.org). The original project assembled a consortium of five states (Indiana, Illinois, Kansas, Kentucky and Ohio) in the midcontinent of the United States (MIDCARB) to construct an online distributed Relational Database Management System (RDBMS) and Geographic Information System (GIS) covering aspects of carbon dioxide (CO{sub 2}) geologic sequestration. The NatCarb system built on the technology developed in the initial MIDCARB effort. The NatCarb project linked the GIS information of the Regional Carbon Sequestration Partnerships (RCSPs) into a coordinated regional database system consisting of datasets useful to industry, regulators and the public. The project includes access to national databases and GIS layers maintained by the NatCarb group (e.g., brine geochemistry) and publicly accessible servers (e.g., USGS, and Geography Network) into a single system where data are maintained and enhanced at the local level, but are accessed and assembled through a single Web portal to facilitate query, assembly, analysis and display. This project improves the flow of data across servers and increases the amount and quality of available digital data. The purpose of NatCarb is to provide a national view of the carbon capture and storage potential in the U.S. and Canada. The digital spatial database allows users to estimate the amount of CO{sub 2} emitted by sources (such as power plants, refineries and other fossil-fuel-consuming industries) in relation to geologic formations that can provide safe, secure storage sites over long periods of time. The NatCarb project worked to provide all stakeholders with improved online tools for the display and analysis of CO{sub 2} carbon capture and storage data through a single website portal (http://www.natcarb.org/). While the external project is ending, NatCarb will continue as an internal US Department of Energy National Energy Technology Laboratory (NETL) project with the continued cooperation of personnel at both West Virginia University and the Kansas Geological Survey. The successor project will continue to organize and enhance the information about CO{sub 2} sources and developing the technology needed to access, query, analyze, display, and distribute natural resource data critical to carbon management. Data are generated, maintained and enhanced locally at the RCSP level, or at the national level in specialized data warehouses, and assembled, accessed, and analyzed in real-time through a single geoportal. To address the broader needs of a spectrum of users form high-end technical queries to the general public, NatCarb will be moving to an improved and simplified display for the general public using readily available web tools such as Google Earth{trademark} and Google Maps{trademark}. The goal is for NatCarb to expand in terms of technology and areal coverage and remain the premier functional demonstration of distributed data-management systems that cross the boundaries between institutions and geographic areas, and forms the foundation of a functioning carbon cyber-infrastructure. NatCarb provides access to first-order information to evaluate the costs, economic potential and societal issues of CO{sub 2} capture and storage, including public perception and regulatory aspects.
Kenneth Nelson; Timothy Carr
Impact of Geographic-Dependent Parameter Optimization on Climate Estimation and Prediction: Simulation with an Intermediate Coupled Model
Because of the geographic dependence of model sensitivities and observing systems, allowing optimized parameter values to vary geographically may significantly enhance the signal in parameter estimation. Using an intermediate atmosphere�ocean�land ...
Xinrong Wu; Shaoqing Zhang; Zhengyu Liu; Anthony Rosati; Thomas L. Delworth; Yun Liu
Geographic Information System At U.S. West Region (Williams & Deangelo,
Williams & Deangelo, Williams & Deangelo, 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At U.S. West Region (Williams & Deangelo, 2008) Exploration Activity Details Location U.S. West Region Exploration Technique Geographic Information System Activity Date Usefulness useful DOE-funding Unknown References Colin F. Williams, Jacob DeAngelo (2008) Mapping Geothermal Potential In The Western United States Retrieved from "http://en.openei.org/w/index.php?title=Geographic_Information_System_At_U.S._West_Region_(Williams_%26_Deangelo,_2008)&oldid=390068" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load)
A strategy to reduce flooding in grid Fisheye State routing GFSR protocol with weighted rough set model using MANET
A mobile ad hoc networks consist of wireless hosts that may move often. Movement of host results to changes in path. The well-known Fisheye State Routing FSR protocol determines a route when no route exists or route breaks. To establish new path from ...
S. Nithya Rekha; C. Chandrasekar
Retrieving and Routing Quantum Information in a Quantum Network
In extant quantum secret sharing protocols, once the secret is shared in a quantum network (\\textsc{qnet}) it can not be retrieved back, even if the dealer wishes that her secret no longer be available in the network. For instance, if the dealer is part of two \\textsc{qnet}s, say $\\mathcal{Q}_1$ and $\\mathcal{Q}_2$ and subsequently finds that $\\mathcal{Q}_2$ is more reliable than $\\mathcal{Q}_1$, the dealer may wish to transfer all her secrets from $\\mathcal{Q}_1$ to $\\mathcal{Q}_2$. In this work we address this problem by designing a protocol that enables the source/dealer to bring back the information shared in the network, if desired. Unlike classical revocation, no-cloning-theorem automatically ensures that the secret is no longer shared in the network. The implications of our results are multi-fold. One interesting implication of our technique is the possibility of routing qubits in asynchronous \\textsc{qnets}. By asynchrony we mean that the requisite data/resources are intermittently available (but not necessarily simultaneously) in the \\textsc{qnet}. For example, we show that a source $S$ can send quantum information to a destination $R$ even though (a) $S$ and $R$ share no quantum resource, (b) $R$'s identity is {\\em unknown}\\/ to $S$ initially, (c) $S$ herself can be $R$ at a later date and/or in a different location to bequeath her information and (d) the path chosen for routing the secret may hit a dead-end due to resource constraints. Another implication of our technique is the possibility of using {\\em insecure}\\/ resources. For instance, it may safely store its private information with a neighboring organization without revealing data to the host and losing control over retrieving the data. Putting the two implications together, namely routing and secure storage, it is possible to envision applications like quantum mail (qmail) as an outsourced service.
Sk Sazim; Indranil Chakrabarty; Chiranjeevi Vanarasa; Kannan Srinathan
Dual-hop LANs using station wavelength routing
Abstract: In future WDM local area networks, the number of available wavelengths may initially be fairly modest. As a result, spatial reuse is required in order to obtain designs which will support a reasonable number of stations. A dual-hop architecture ... Keywords: ATM buffer/switch components, WDM local area networks, all-optical approaches, buffering stage, control strategies, dual-hop LAN, dual-hop architecture, electronic implementations, hybrid electro-optic designs, local optical network, multiple wavelength sharing, optical fibre LAN, spatial reuse, station wavelength routing, system performance, traffic models, wavelength agility
Geographic Information System At Fish Lake Valley Area (Deymonaz, Et Al.,
Geographic Information System At Fish Lake Valley Area (Deymonaz, Et Al., Geographic Information System At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish Lake Valley Area Exploration Technique Geographic Information System Activity Date Usefulness useful DOE-funding Unknown Notes Several datasets have been incorporated into a GIS database for map production, data archiving, data visualization, and modeling. These include (1) geology map layers produced from field work done on this project; (2) previously drilled U.S. Borax exploration bore holes and ancillary data; (3) temperature gradients; (4) thermal anomalies; and (5) gravity data.
Geographic Information System At Nw Basin & Range Region (Laney, 2005) |
Geographic Information System At Nw Basin & Range Geographic Information System At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital geothermal data will be made available to industry and researchers on a web site. Relationships among the data will be explored using spatial
Persistent Anomalies of the Extratropical Northern Hemisphere Wintertime Circulation: Geographical Distribution and Regional Persistence Characteristics
We have studied the geographical and regional persistence characteristics of wintertime Northern Hemisphere 500 mb height anomalies, focusing particular attention on the behavior of strong anomalies that persist beyond the durations associated ...
Randall M. Dole; Neil D. Gordon
Geographical Distribution of Climate Feedbacks in the NCAR CCSM3.0
This study performs offline, partial radiative perturbation calculations to determine the geographical distributions of climate feedbacks contributing to the top-of-atmosphere (TOA) radiative energy budget. These radiative perturbations are ...
Patrick C. Taylor; Robert G. Ellingson; Ming Cai
The Geographical Distribution and Seasonality of Persistence in Monthly Mean Air Temperatures over the United States
Eighty years of monthly mean station temperatures are used to evaluate the persistence of monthly air temperature anomalies over the United States. The geographical and seasonal dependence of the monthly persistence are described in term of the ...
H. M. van den Dool; W. H. Klein; J. E. Walsh
Using geographic information systems to support student learning through urban ecology
This paper describes our urban street tree curriculum project in which we engage students in an ecological and economic evaluation of trees in highly populated areas through the use of Geographic Information Systems and modeling technologies. In particular, ...
Mike Barnett; Meredith Houle
An Empirical Study of Geographic and Seasonal Variations in Diurnal Temperature Range
The diurnal temperature range (DTR) of surface air over land varies geographically and seasonally. The authors have investigated these variations using generalized additive models (GAMs), a nonlinear regression methodology. With DTR as the ...
Lawrence S. Jackson; Piers M. Forster
Geographic Aspects of Temperature and Concentration Feedbacks in the Carbon Budget
The geographical distribution of feedback processes in the carbon budget is investigated in a manner that parallels that for climate feedback/sensitivity in the energy budget. Simulations for a range of emission scenarios, made with the Canadian ...
G. J. Boer; V. Arora
Wintertime Nonbrightband Rain in California and Oregon during CALJET and PACJET: Geographic, Interannual, and Synoptic Variability
An objective algorithm presented in White et al. was applied to vertically pointing S-band (S-PROF) radar data recorded at four sites in northern California and western Oregon during four winters to assess the geographic, interannual, and ...
Paul J. Neiman; Gary A. Wick; F. Martin Ralph; Brooks E. Martner; Allen B. White; David E. Kingsmill
Wildfire forecasting using an open source 3D multilayer geographical framework
This abstract describes the development of a wildfire forecasting plugin using Capaware. Capaware is designed as an easy to use open source framework to develop 3D graphics applications over large geographic areas offering high performance 3D visualization ...
Modesto Castrill�n; Pedro A. Jorge; Adri�n Mac�as; Antonio J. S�nchez; Javier S�nchez; Jos� P. Su�rez; Agust�n Trujillo; Izzat Sabbagh; Ignacio J. L�pez; Rafael J. Nebot
Integrated use of remote sensing and geographic information systems in riparian vegetation delineation and mapping
This paper presents a pilot study on riparian vegetation delineation and mapping using remote sensing and geographic information systems (GIS) in the Hunter Region, Australia. The aim of the study was to develop appropriate and repeatable assessment ...
X. Yang
An interactive, online Geographic Information System (GIS) for stakeholder participation in environmental site selection
An interactive, online geographic information system (GIS) was developed to enhance the involvement of stakeholders in the public participation processes of site selection issues in the marine environment. Displaying ...
Adams, Christiaan Scott, 1973-
Proceedings of the 12th annual ACM international workshop on Geographic information systems
The 12th ACM International Symposium on Geographic Information Systems (Arlington, VA, USA, November 12-13, 2004) continues the series of symposia/workshops that started in 1993 with the aim of bringing together researchers, developers, users, and practitioners ...
Isabel F. Cruz; Dieter Pfoser
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
These proceedings contain the papers selected for publication and presentation at the 16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS) in Irvine, California, USA, from November 5th to 7th, 2008. ACM ...
Walid G. Aref; Mohamed F. Mokbel; Markus Schneider
Proceedings of the 20th International Conference on Advances in Geographic Information Systems
We are happy to publish the papers selected for presentation at the 20th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL GIS 2012) in these proceedings. ACM SIGSPATIAL GIS is the flagship event of ...
Isabel Cruz; Craig Knoblock; Peer Kr�ger; Egemen Tanin; Peter Widmayer
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
These proceedings contain the papers selected for publication and presentation at the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL GIS) in Seattle, Washington, USA, from November 4th to 6th, ...
Ouri Wolfson; Divyakant Agrawal; Chang-Tien Lu
DOE Collaborates with National Geographic's JASON Project on Award-Winning
Collaborates with National Geographic's JASON Project on Collaborates with National Geographic's JASON Project on Award-Winning Curriculum DOE Collaborates with National Geographic's JASON Project on Award-Winning Curriculum June 17, 2011 - 1:00pm Addthis Washington, DC - A new JASON Project geology unit, developed with assistance from the Office of Fossil Energy's National Energy Technology Laboratory (NETL), has earned a prestigious "CODiE Award" as the nation's Best Science or Health curriculum. Operation: Tectonic Fury--which unlocks the Earth's geologic mysteries through investigation of its past, present and future - is the fourth unit in a new line of middle school science curricula developed by the nonprofit subsidiary of the National Geographic Society. The CODiE Awards are presented annually by the Software & Information Industry Association
EA-0904: Access Road from State Route 240 to the 200 West Area Hanford
4: Access Road from State Route 240 to the 200 West Area 4: Access Road from State Route 240 to the 200 West Area Hanford Site, Richland, Washington EA-0904: Access Road from State Route 240 to the 200 West Area Hanford Site, Richland, Washington SUMMARY This EA evaluates the environmental impacts of a proposal to construct an access road on the U.S. Department of Energy's Hanford Site in Richland, Washington, from State Route 240 to Beloit Avenue in the 200 West Area. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD March 10, 1994 EA-0904: Finding of No Significant Impact Access Road from State Route 240 to the 200 West Area Hanford Site, Richland, Washington March 10, 1994 EA-0904: Final Environmental Assessment Access Road from State Route 240 to the 200 West Area Hanford Site,
A New Route to Nanoscale Conducting Channels in Insulating Oxides Print A New Route to Nanoscale Conducting Channels in Insulating Oxides Print Two-dimensional electron gases (2DEGs)-narrow conducting channels at the surfaces and interfaces of semiconductor materials-are the bedrock of conventional electronics. The startling 2004 discovery that such 2DEGs could be engineered at the interface between two insulating transition-metal oxides, SrTiO3 and LaAlO3, initiated a worldwide effort to harness the functionality of oxide materials for advanced electronic applications. Now, an international collaboration working at the ALS has shown that the interface is not required. Using only intense synchrotron light, the group has been able to create and control 2DEGs at the bare surfaces of the insulating oxides SrTiO3 and KTaO3. As well as suggesting a potential methodology to spatially pattern 2DEGs in a wide variety of complex oxides, this discovery opens a new avenue for spectroscopic investigation of these novel electronic systems.
Vehicle routing for the last mile of power system restoration
This paper studied a novel problem in power system restoration: the Power Restoration Vehicle Routing Problem (PRVRP). The goal of PRVRPs is to decide how coordinate repair crews effectively in order to recover from blackouts as fast as possible after a disaster has occurred. PRVRPs are complex problems that combine vehicle routing and power restoration scheduling problems. The paper proposed a multi-stage optimization algorithm based on the idea of constraint injection that meets the aggressive runtime constraints necessary for disaster recovery. The algorithms were validated on benchmarks produced by the Los Alamos National Laboratory, using the infrastructure of the United States. The disaster scenarios were generated by state-of-the-art hurricane simulation tools similar to those used by the National Hurricane Center. Experimental results show that the constraint-injection algorithms can reduce the blackouts by 50% or more over field practices. Moreover, the results show that the constraint-injection algorithm using large neighborhood search over a blackbox simulator provide competitive quality and scales better than using a MIP solver on the subproblems.
Bent, Russell W [Los Alamos National Laboratory; Coffrin, Carleton [Los Alamos National Laboratory; Van Hentenryck, Pascal [BROWN UNIV.
New Route to Nanoscale Conducting Channels in Insulating Oxides Print New Route to Nanoscale Conducting Channels in Insulating Oxides Print Two-dimensional electron gases (2DEGs)-narrow conducting channels at the surfaces and interfaces of semiconductor materials-are the bedrock of conventional electronics. The startling 2004 discovery that such 2DEGs could be engineered at the interface between two insulating transition-metal oxides, SrTiO3 and LaAlO3, initiated a worldwide effort to harness the functionality of oxide materials for advanced electronic applications. Now, an international collaboration working at the ALS has shown that the interface is not required. Using only intense synchrotron light, the group has been able to create and control 2DEGs at the bare surfaces of the insulating oxides SrTiO3 and KTaO3. As well as suggesting a potential methodology to spatially pattern 2DEGs in a wide variety of complex oxides, this discovery opens a new avenue for spectroscopic investigation of these novel electronic systems.
Comparison of Methanol Exposure Routes Reported to Texas Poison Control Centers
school students in Texas: prevalence and characteristics ofExposure Routes Reported to Texas Poison Control Centersof methanol cases reported to Texas Poison Centers. Methods:
Givens, Melissa; Kalbfleisch, Kristine; Bryson, Scott
Internet Routing Algorithms, Transmission and Time: Toward a Concept of Transmisive Control.
??This dissertation develops the concept of transmissive control to explore the consequences of changes in Internet routing for communication online. Where transmission often denotes an� (more)
McKelvey, Fenwick Robert
Mobile Ad Hoc Data Networks for Emergency Preparedness Telecommunications - Dynamic Power-Conscious Routing Concepts
this report, we focus on the Network Layer operation of routing and implications of power consumption for emergency MANETs. We discuss the bene#ts of power consciousness and conduct an initial investigation on the e#ects of energy-e#cient wireless routing in MANETs. We develop an initial dynamic power-conscious routing scheme #minimum power routing - MPR# that incorporates physical layer and link layer statistics to conservepower, while compensating for the propagation path loss, shadowing and fading e#ects, and interference environment at the intended receiver. The main idea of MPR is to select the path between a given source and destination that will require the least amount of total power expended, while still maintaining an acceptable signal-to-noise ratio #SNR# at each receiver. A #cost" function is assigned to every link re#ecting the transmitter power required to reliably communicate on that link. Routing decisions and cost updates are made based on feedback or information extracted from the received signal and special control packets. As an initial approach, we use the distributed Bellman-Ford algorithm to perform #shortest" path routing with the cost functions as the link distances. The resulting #shortest path" is the MPR path from a given source to a destination. We compare the performance of MPR to the common routing protocols of shortest distance routing with power control #SD-PC# and minimum hop routing with power control #MH-PC#, and present our preliminary results
Madhavi W. Subbarao
Analysis of Country-wide Internet Outages Caused by Censorship
In the first months of 2011, Internet communications were disrupted in several North African countries in response to civilian protests and threats of civil war. In this paper we analyze episodes of these disruptions in two countries: Egypt and Libya. Our analysis relies on multiple sources of large-scale data already available to academic researchers: BGP interdomain routing control plane data; unsolicited data plane traffic to unassigned address space; active macroscopic traceroute measurements; RIR delegation files; and MaxMind�s geolocation database. We used the latter two data sets to determine which IP address ranges were allocated to entities within each country, and then mapped these IP addresses of interest to BGP-announced address ranges (prefixes) and origin ASes using publicly available BGP data repositories in the U.S. and Europe. We then analyzed observable activity related to these sets of prefixes and ASes throughout the censorship episodes. Using both control plane and data plane data sets in combination allowed us to narrow down which forms of Internet access disruption were implemented in a given region over time. Among other insights, we detected what we believe were Libya�s attempts to test firewallbased blocking before they executed more aggressive BGP-based disconnection. Our methodology could be used, and automated, to detect outages or similar macroscopically disruptive events in other geographic or topological regions.
Alberto Dainotti; Kimberly C. Claffy; Michele Russo; Claudio Squarcella; Marco Chiesa; Antonio Pescap�; Emile Aben
Where the Heart Is? A Geographic Analysis of Working-class Cultures in Detroit Neighborhoods, 1953
Government Printing Office. Weatherford, M. Stephen. 1980. "Tingsten [1937] 1963; Weatherford 1980). When workers live
Stepan-Norris, Judith; Southworth, Caleb
Peterson 1954. City of Detroit Election Commission. 1952.Precinct Level. Microfilm. Detroit City Hall. Clawson, Dan.You!" Footnotes 24:1,4. Detroit Metropolitan Area Traffic
Hydrogen Station Siting and Refueling Analysis Using Geographic Information Systems: A Case Study of Sacramento County
Case of Compressed Natural Gas (CNG) Vehicles in CaliforniaCase of Compressed Natural Gas (Cng) Vehicles in Californiaof compressed natural gas (CNG), yet natural gas is viewed
Nicholas, Michael A
A Geographic Information Systems�Based Analysis of Supercells across Oklahoma from 1994 to 2003
Oklahoma is a region that is well known for its high frequency of severe thunderstorms, which vary in activity, mode, and coverage. In particular, this region experiences a significant number of highly organized supercell thunderstorms that pose ...
James E. Hocker; Jeffrey B. Basara
Geographic information systems and spatial analysis of market segmentation for community banks.
??The purpose of this research was to determine the value of incorporating consumer behavioral datasets, specifically lifestyle market segmentation, into traditional site selection and location� (more)
Parrish, Jason S.
Vehicles: The Case of Compressed Natural Gas (CNG) VehiclesVehicles: The Case of Compressed Natural Gas (Cng) Vehiclessimilar to that of compressed natural gas (CNG), yet natural
An Unlikely Route to Ferroelectricity | Advanced Photon Source
How to Make a Splash How to Make a Splash Pressure-Tuning the Quantum Phase Transition in a Model 2-D Magnet Reappearing Superconductivity Surprises Scientists Manipulating Genes with Hidden TALENs A New Discovery Answers an Old Question Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed An Unlikely Route to Ferroelectricity MAY 16, 2012 Bookmark and Share Left side: The charge order configuration [after "N. Ikeda et al., Nature 436, 1136 (2005)"] with polar bilayers previously assumed for LuFe2O4. Right side: The refined LuFe2O4 monoclinic crystal structure containing charged bilayers. For both configurations, the Fe atoms are arranged in Fe/O bilayers separated by Lu single layers. The different Fe valances are
Novel route to synthesize CuO nanoplatelets
A new synthesis route to obtain high-purity cupric oxide, CuO, using the hydrothermal reaction of copper sulfide and a NaOH solution in an oxygen atmosphere has been developed. The synthesized products showed nanoplatelet-like morphologies with rectangular cross-sections and dimensions at the nanometric scale. Variations in the oxygen partial pressure and synthesis temperature produced changes in size and shape, being found that the proliferation of nanoplatelet structures occurred at 200 deg. C and 30 bar. - Graphical abstract: Transmission electron microscopy image of a CuO nanoplatelet. The inset is an electron diffraction pattern of this twined CuO nanoplatelet exhibiting a monoclinic crystal structure.
Zarate, R.A. [Departamento de Fisica, Facultad de Ciencias, Universidad Catolica del Norte, Casilla 1280, Antofagasta (Chile)], E-mail: email@example.com; Hevia, F. [Departamento de Quimica, Facultad de Ciencias, Universidad Catolica del Norte, Casilla 1280, Antofagasta (Chile); Fuentes, S. [Departamento de Fisica, Facultad de Ciencias, Universidad Catolica del Norte, Casilla 1280, Antofagasta (Chile); Fuenzalida, V.M. [Departamento de Fisica, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Av. Blanco Encalada 2008, Santiago (Chile); Zuniga, A. [Departamento de Ingenieria Mecanica, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Beauchef 850, Santiago (Chile)
Tuple spaces in hardware for accelerated implicit routing
Organizing and optimizing data objects on networks with support for data migration and failing nodes is a complicated problem to handle as systems grow. The goal of this work is to demonstrate that high levels of speedup can be achieved by moving responsibility for finding, fetching, and staging data into an FPGA-based network card. We present a system for implicit routing of data via FPGA-based network cards. In this system, data structures are requested by name, and the network of FPGAs finds the data within the network and relays the structure to the requester. This is acheived through successive examination of hardware hash tables implemented in the FPGA. By avoiding software stacks between nodes, the data is quickly fetched entirely through FPGA-FPGA interaction. The performance of this system is orders of magnitude faster than software implementations due to the improved speed of the hash tables and lowered latency between the network nodes.
Baker, Zachary Kent [Los Alamos National Laboratory; Tripp, Justin [Los Alamos National Laboratory
Opportunistic media access control and routing for delay-tolerant mobile ad hoc networks
In delay-tolerant mobile ad hoc networks, motion of network nodes, network sparsity and sporadic density can cause a lack of guaranteed connectivity. These networks experience significant link delay and their routing protocols must take a store-and-forward ... Keywords: Cross-layer adaptation design, Delay-tolerant network, Mobile ad hoc network, Opportunistic routing, Vehicular ad hoc network
Liang Dong
Analyzing multi-hop routing feasibility for sensor data harvesting using mobile sinks
This paper presents a modeling framework for characterizing the feasibility and impacts of multi-hop packet routing in sensor networks with mobile sinks. Data collection in sensor networks using mobile sinks has recently been investigated to improve ... Keywords: Mobile sinks, Multi-hop hop routing, Network Assisted Navigation, Network life, Sensor networks
Jayanthi Rao; Subir Biswas
An entropy-based stability qos routing with priority scheduler in MANET using fuzzy controllers
Due to the dynamic nature of the network topology and restricted resources, quality of service (QoS) and stability routing in mobile ad hoc network (MANET) is a challenging task. This paper presents an Entropy-based Stability QoS Routing with Priority ...
Baolin Sun; Chao Gui; Hua Chen; Yue Zeng
Vessel routing and scheduling under uncertainty in the liquefied natural gas business
Liquefied natural gas (LNG) is natural gas transformed into liquid state for the purpose of transportation mainly by specially built LNG vessels. This paper considers a real-life LNG ship routing and scheduling problem where a producer is responsible ... Keywords: Liquefied natural gas, Maritime transportation, Ship routing and scheduling, Simulation, Uncertainty
Elin E. Halvorsen-Weare; Kjetil Fagerholt; Mikael R�Nnqvist
A construction and improvement heuristic for a liquefied natural gas inventory routing problem
We present a large scale ship routing and inventory management problem for a producer and distributor of liquefied natural gas (LNG). The problem contains multiple products, inventory and berth capacity at the loading port and a heterogeneous fleet of ... Keywords: Heuristics, Inventory routing, Maritime transportation
Magnus St�lhane; J�rgen Glomvik Rakke; Christian R�rholt Moe; Henrik Andersson; Marielle Christiansen; Kjetil Fagerholt
ForPeerReview From vegetable oils to polyurethanes: synthetic routes to
From vegetable oils to polyurethanes: synthetic routes to polyols and main industrial products Myriam and main industrial products Most of biobased polyols for polyurethanes are synthesized from vegetable oils literature; focus on the industrial synthetic routes. Keywords: vegetable oils; biobased polyols
Is there a route to a UK Feed in Tariff for renewable energy?
1 Is there a route to a UK Feed in Tariff for renewable energy? ICEPT Discussion Paper October 2010 University #12;2 Is there a route to a UK Feed in Tariff for renewable energy? Introduction This discussion paper is concerned with the potential to change the way the UK provides support for renewable energy
Scenario Tree-Based Heuristics for Stochastic Inventory-Routing Problems
In vendor-managed inventory replenishment, the vendor decides when to make deliveries to customers, how much to deliver, and how to combine shipments using the available vehicles. This gives rise to the inventory-routing problem in which the goal is ... Keywords: heuristic, inventory routing, scenario, stochastic
Lars Magnus Hvattum; Arne L�kketangen; Gilbert Laporte
On False Data Injection Attacks against Distributed Energy Routing in Smart Grid
Smart Grid is a new type of energy-based cyber physical system (CPS) that will provide reliable, secure, and efficient energy transmission and distribution. The way to secure the distributed energy routing process that efficiently utilizes the distributed ... Keywords: Smart grid, Distributed energy routing, False data injection attacks, Energy distribution
Jie Lin; Wei Yu; Xinyu Yang; Guobin Xu; Wei Zhao
Model Integrating Fleet Design and Ship Routing Problems for Coal Shipping
In this paper, an integrated optimization model is developed to improve the efficiency of coal shipping. The objective is (1) to determine the types of ships and the number of each type, (2) to optimize the ship routing, therefore, to minimize the total ... Keywords: coal shipping, fleet design, ship routing, tabu search
Qingcheng Zeng; Zhongzhen Yang
Position-based cluster routing protocol for mobile ad hoc networks
Some of the proposed mobile ad hoc network routing algorithms require maintaining a global network state at each node. The global state is always an approximation of the current network state due to the non-negligible delay of propagating local state. ... Keywords: GPS, QoS, mobile ad hoc network, multicasting, position-based routing protocol
Chao-Cheng Shih; Tzay-Farn Shih
Useful-Skew Clock Routing with Gate Sizing for Low Power Design
This paper presents a new problem formulation and algorithm of clock routing combined with gate sizing for minimizing total logic and clock power. Instead of zero-skew or assuming a fixed skew bound, we seek to produce useful skews in clock routing. ...
Joe Gufeng Xi; Wayne Wei-Ming Dai
A population-based local search for solving a bi-objective vehicle routing problem
In this paper we present a population-based local search for solving a bi-objective vehicle routing problem. The objectives of the problem are minimization of the tour length and balancing the routes. The algorithm repeatedly generates a pool of good ...
Joseph M. Pasia; Karl F. Doerner; Richard F. Hartl; Marc Reimann
Approximation Algorithms for Deadline-TSP and Vehicle Routing with Time-Windows
Approximation Algorithms for Deadline-TSP and Vehicle Routing with Time-Windows Nikhil Bansal by their deadlines. We also consider the more general Vehicle Routing with Time- Windows problem, in which each node their "time-windows" [R(v), D(v)]. No good ap- proximations were known previously for these problems
Sheridan, Jennifer
Author's personal copy The time dependent vehicle routing problem with time windows
Author's personal copy The time dependent vehicle routing problem with time windows: Benchmark routing problems with hard or soft time windows without any alteration in its structure is presented of congested urban settings are proposed. Solution quality, time window pertur- bations, and computational time
Particle Swarm Optimization for the Vehicle Routing Problem with Stochastic Demands
This paper introduces a new hybrid algorithmic approach based on Particle Swarm Optimization (PSO) for successfully solving one of the most popular supply chain management problems, the Vehicle Routing Problem with Stochastic Demands (VRPSD). The VRPSD ... Keywords: Particle Swarm Optimization, Path relinking, Vehicle Routing Problem with Stochastic Demands
Yannis Marinakis; Georgia-Roumbini Iordanidou; Magdalene Marinaki
Reoptimization Approaches for the Vehicle-Routing Problem with Stochastic Demands
We consider the vehicle-routing problem with stochastic demands (VRPSD) under reoptimization. We develop and analyze a finite-horizon Markov decision process (MDP) formulation for the single-vehicle case and establish a partial characterization of the ... Keywords: application, dynamic programming, heuristics, network/graphs, stochastic demands, stochastic model, transportation, vehicle-routing problem
Nicola Secomandi; Fran�ois Margot
A Scalable and Reliable Multicast Routing Protocol for Ad-hoc Wireless Networks
Multicasting is an essential service for ad-hoc wireless networks. In a multicasting environment with multiple senders, receivers or meeting members, traditional multicast routing protocols must pay great overhead for multiple multicast sessions. This ... Keywords: ad-hoc wireless networks, clustering, multicasting, routing, virtual backbone
C. R. Dow; J. H. Lin; K. T. Chen; S. C. Chen; S. F. Hwang
A survey on physical layer impairments aware routing and wavelength assignment algorithms in optical networks
Optical networks are moving from opaque and translucent architectures towards all-optical (transparent) architectures. In translucent architectures a small amount of regeneration (e.g. optical-electronic-optical conversion) is available in the network. ... Keywords: Impairment aware RWA, Impairment constrained RWA, Impairment constraint-based routing, Optical network planning, Physical-layer impairments, Routing and wavelength assignment (RWA)
Siamak Azodolmolky; Miros?aw Klinkowski; Eva Marin; Davide Careglio; Josep Sol� Pareta; Ioannis Tomkos
Expressing and processing complex preferences in route planning queries: Towards a fuzzy-set-based approach
In this paper, we propose a contribution for a new generation of route planners able to deal with complex and sophisticated preferences. Fuzzy set theory is advocated as a framework for modelling preferences. First, a typology of user preferences that ... Keywords: Bipolarity, Fuzzy sets, Preferences, Route planning
A. Hadjali; A. Mokhtari; O. Pivert
Complexity results on labeled shortest path problems from wireless routing metrics
Metrics to assess the cost of paths through networks are critical to ensuring the efficiency of network routing. This is particularly true in multi-radio multi-hop wireless networks. Effective metrics for these networks must measure the cost of a wireless ... Keywords: Approximation algorithms, Labeled paths, Shortest paths, Wireless routing metrics
Charles B. Ward; Nathan M. Wiegand
Fast high-performance algorithms for multi-pin droplet routing in digital microfluidic biochips
The use of microfluidics for building biochips is an emerging research area. A key challenge in this area is the droplet routing problem in the design of digital microfluidic biochips. It involves the scheduling of movement of a number of droplets in ... Keywords: algorithms, digital microfluidic biochips, droplet routing, microfluidics
Froms: A failure tolerant and mobility enabled multicast routing paradigm with reinforcement learning for WSNs
A growing class of wireless sensor network (WSN) applications require the use of sensed data inside the network at multiple, possibly mobile base stations. Standard WSN routing techniques that move data from multiple sources to a single, fixed base station ... Keywords: Energy-aware, Mobile sinks, Multicast, Node failures, Reinforcement learning, Routing, Sensor networks
Anna F�rster; Amy L. Murphy
A Branch-Price-and-Cut Algorithm for Single-Product Maritime Inventory Routing
A branch-price-and-cut algorithm is developed for a complex maritime inventory-routing problem with varying storage capacities and production/consumption rates at facilities. The resulting mixed-integer pricing problem is solved exactly and efficiently ... Keywords: column generation, dynamic programming, integer programming, maritime inventory routing
Faramroze G. Engineer; Kevin C. Furman; George L. Nemhauser; Martin W. P. Savelsbergh; Jin-Hwa Song
Review: Unicast routing protocols for vehicular ad hoc networks: A critical comparison and classification
Vehicular Ad hoc NETworks (VANETs) allow vehicles to form a self-organized network without the need for a permanent infrastructure. As a prerequisite to communication, an efficient route between network nodes must be established, and it must adapt to ... Keywords: Inter-vehicle communication, Mobile ad hoc network, Routing, VANET, Vehicular ad hoc networks
James Bernsen; D. Manivannan
A Secure Energy Routing Mechanism for Sharing Renewable Energy in Smart Microgrid
A Secure Energy Routing Mechanism for Sharing Renewable Energy in Smart Microgrid Ting Zhu Sheng and wind turbines on every house sharing renewable energy among houses. How to efficiently and optimally share energy is a challenging problem. In order to efficiently share renewable energy, routing protocols
Massachusetts at Amherst, University of
Joint optimisation for power control, scheduling and routing algorithms in the infrastructure wireless mesh network
The performance optimisation model for the IEEE 802.16 standard based wireless mesh network is presented and a joint optimisation method is proposed as the sub-optimal solution strategy, in which the power control, scheduling and routing algorithms ... Keywords: IEEE 80216, WMN, network throughput, performance optimisation, power control, routing, scheduling, simulation, wireless mesh networks, wireless networks
Mugen Peng; Yingjie Wang; Kun Wang; Wenbo Wang
Unicast and multicast QoS routing with soft-constraint logic programming
We present a formal model to represent and solve the unicast/multicast routing problem in networks with quality-of-service (QoS) requirements. To attain this, first we translate the network adapting it to a weighted graph (unicast) or and-or ... Keywords: Constraints, Quality of Service (QoS), constraint logic programming (CLP), preferences, routing, soft constraints
Stefano Bistarelli; Ugo Montanari; Francesca Rossi; Francesco Santini
Energy-Aware Adaptive Routing for Large-Scale Ad Hoc Networks
range are optimized analytically. By adjoining cells around hot spots and hot routes in the network neighboring cells to form proactive zones around hot spots and hot routes while the rest of the network and facilitates the handling of heterogeneous traffic via cell combining. Furthermore, the optimal cell size
Tong, Lang
Integrated topology control and routing in wireless sensor networks for prolonged network lifetime
This study considers an integrated topology control and routing problem in wireless sensor networks (WSNs), which are employed to gather data via use of sensors with limited energy resources. We employ a hierarchical topology and routing structure with ... Keywords: Algorithms, Data gathering, Network design models, Wireless sensor networks
Halit �ster; Hui Lin
Revisiting fidelity: a case of elmore-based Y-routing trees
The dominance of interconnect delay in VLSI circuit design is well-known. Construction of routing trees in recent times has to take care of the timing issues for faster design convergence. Thus there is immense scope of research in design and performance ... Keywords: Steiner trees, fidelity, rank correlation, routing
Tuhina Samanta; Prasun Ghosal; Hafizur Rahaman; Parthasarathi Dasgupta
An assessment of the utility of GIS-based analysis to support the coordination of humanitarian assistance.
?? This dissertation investigated if Geographic Information Systems (GIS)-based analysis can have a decisive influence upon the coordination of international humanitarian assistance. Utility was assessed� (more)
Verjee, Firoz
A question about geographic data on wind farms in the US | OpenEI Community
A question about geographic data on wind farms in the US A question about geographic data on wind farms in the US Home > Groups > OpenEI Community Central Dear OpenEI community, I'm a researcher and student at Claremont Graduate School who is searching for GIS data on existing wind farms in the US. Although various geo-tagged datasets are available, I have yet found a shapefile with facility level data on wind. Ideally the dataset would have geographic boundaries for the facility, along with capacity and operation dates. If anyone has suggestions on where I can locate a dataset like this, please let me know. Thanks! -nick Submitted by Nickc on 10 September, 2013 - 11:52 1 answer Points: 0 Hi Nick- Thank you for posting your question here. One of the most complete wind farm datasets is available for free on OpenEI and can be downloaded as a