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Closed Lab Announcements | U.S. DOE Office of Science (SC)
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Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search 2013 Exascale Operating and Runtime Systems RX-Solvers FAQ Advanced Scientific...
Characterizing Application Runtime Behavior from System Logs and Metrics
Science Conference Proceedings (OSTI)
Large-scale systems are heavily shared resource environments where a mix of applications are launched concurrently competing for network and storage resources. It is essential to characterize the runtime behavior of these applications for provisioning system resources and understanding the impact of application s performance when competing for resources. In this paper, we study the use of zero- and low-overhead system logs and other system metric data for characterizing the runtime behavior of several applications. We present our preliminary work on estimating individual application s I/O demands by observing file system usage pattern over multiple runs, and interpreting application s network utilization characteristics by observing link-layer error logs. We also present preliminary findings on using such information in making context-sensitive scheduling decisions that minimize potentially negative interactions between applications competing for shared resources. Our analysis is based on four months of system log data collected on one of the world s largest supercomputing facilities, the Jaguar XT5 petaflop system at Oak Ridge National Laboratory.
Gunasekaran, Raghul [ORNL; Dillow, David A [ORNL; Shipman, Galen M [ORNL; Vuduc, Richard [Georgia Institute of Technology; Chow, Edmond [Georgia Institute of Technology
Initial steps towards run-time support for norm-governed systems
We present a knowledge representation framework with an associated run-time support infrastructure that is able to compute, for the benefit of the members of a norm-governed multi-agent system, the physically possible and permitted actions at each time, ... Keywords: GOLEM, event calculus, run-time service, social interaction
Visara Urovi; Stefano Bromuri; Kostas Stathis; Alexander Artikis
Using memory mapping to support cactus stacks in work-stealing runtime systems
E-Print Network (OSTI)
Many multithreaded concurrency platforms that use a work-stealing runtime system incorporate a "cactus stack," wherein a function's accesses to stack variables properly respect the function's calling ancestry, even when ...
Lee, I-Ting Angelina
Run-time validation of knowledge-based systems
As knowledge bases become more complex it is increasingly unlikely that they will have been validated against all possible data and therefore an increasing risk of making errors. Run-time validation is checking whether the output of a knowledge base ... Keywords: anomalies, outliers, prudence, ripple-down rules, validation
Angela Finlayson, Paul Compton
Extreme Scale FAQ | U.S. DOE Office of Science (SC)
NLE Websites -- All DOE Office Websites (Extended Search)
RX-Solvers FAQ RX-Solvers FAQ Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights Benefits of ASCR Funding Opportunities Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search 2013 Exascale Operating and Runtime Systems RX-Solvers FAQ Advanced Scientific Computing Advisory Committee (ASCAC) News & Resources Contact Information Advanced Scientific Computing Research U.S. Department of Energy SC-21/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-7486 F: (301) 903-4846 E: firstname.lastname@example.com More Information » Funding Opportunities RX-Solvers FAQ Print Text Size: A A A RSS Feeds FeedbackShare Page Resilient Extreme-Scale Solvers ("RX-Solvers") Funding Opportunity Announcements (FOA) DE-FOA-0000742 and Program
Runtime Tracing of The Community Earth System Model: Feasibility and Benefits
Community Earth System Models (CESM) is one of US's leading earth system modeling systems, which has over decades of development history and embraced by large, active user communities. In this paper, we first review the history of CESM software development and layout the general objectives of performance analysis. Then we present an offline global community land model simulation within the CESM framework to demonstrate the procedure of runtime tracing of CESM using the Vampir toolset. Finally, we explain the benefits of runtime tracing to the general earth system modeling community. We hope those considerations can also be beneficial to many other modeling research programs involving legacy high-performance computing applications.
Wang, Dali [ORNL; Domke, Jens [ORNL
MetaVM: A Transparent Distributed Object System Supported by Runtime Compiler
MetaVM is a distributed object system for Java virtual machine. It allows programmers to deal with remote objects in the same way they do local objects. Therefore, it can provide a single machine image to programmers. We implemented a runtime compiler of Java bytecode to provide the facilities. The runtime compiler generates a native code which can handle remote objects beyond the network besides the local objects. The compiler uses semantic expansion, which is a technique that changes the original semantics of a Java bytecode. Keywords: distributed object system, network transparency, Java Just-In-Time compiler 1
Kazuyuki Shudo Yoichi; Yoichi Muraoka
Designing Energy Efficient Communication Runtime Systems for Data Centric Programming Models
The insatiable demand of high performance computing is being driven by the most computationally intensive applications such as computational chemistry, climate modeling, nuclear physics, etc. The last couple of decades have observed a tremendous rise ... Keywords: PGAS, Communication Runtime Systems, Energy Efficiency
Abhinav Vishnu; Shuaiwen Song; Andres Marquez; Kevin Barker; Darren Kerbyson; Kirk Cameron; Pavan Balaji
Enhancing the performance of assisted execution runtime systems through hardware/software techniques
To meet the expected performance, future exascale systems will require programmers to increase the level of parallelism of their applications. Novel programming models simplify parallel programming at the cost of increasing runtime overheard. Assisted ... Keywords: assisted execution, exascale, performance, transactional memory
Gokcen Kestor; Roberto Gioiosa; Osman Sabri Unsal; Adrian Cristal; Mateo Valero
Designing energy efficient communication runtime systems: a view from PGAS models
As the march to the exascale computing gains momentum, energy consumption of supercomputers has emerged to be the critical roadblock. While architectural innovations are imperative in achieving computing of this scale, it is largely dependent on the ... Keywords: Communication runtime system, DVFS, Energy efficiency, InfiniBand
Enabling run-time memory data transfer optimizations at the system level with automated extraction of embedded software metadata information
The information about the run-time behavior of software applications is crucial for enabling system level optimizations for embedded systems. This embedded Software Metadata information is especially important today, because several complex multi-threaded ...
Alexandros Bartzas; Miguel Peon-Quiros; Stylianos Mamagkakis; Francky Catthoor; Dimitrios Soudris; Jose M. Mendias
Framework for Adaptable Operating and Runtime Systems: Final Project Report
SciTech Connect
In this grant, we examined a wide range of techniques for constructing high-performance con#12;gurable system software for HPC systems and its application to DOE-relevant problems. Overall, research and development on this project focused in three specifc areas: (1) software frameworks for constructing and deploying con#12;gurable system software, (2) applcation of these frameworks to HPC-oriented adaptable networking software, (3) performance analysis of HPC system software to understand opportunities for performance optimization.
Patrick G. Bridges
ParaGraph-RTS: A parallel reduction-based run-time system
We are investigating the use of the functional programming paradigm on multiprocessor computers. We have developed a parallel graph reduction run-time system called ParaGraph-RTS (Parallel Graph Reduction) that provides both significant amounts of exploitable parallelism and the robustness to support development of large scientific codes. This system allows us to empirically investigate the functional programming paradigm within computationally intensive application domains. In this paper, we describe an implementation of ParaGraph-RTS on a shared-memory multiprocessor. The implementation strategy reflects insights gained through performance characterizations of the reduction process. Preliminary performance results and analyses are presented. 8 refs., 4 figs.
Yantis, B.; Rich, D.; Michelsen, R.
MetaVM: A transparent distributed object system supported by runtime compiler
Abstract MetaVM is a distributed object system for Java virtual machine. It allows programmers to deal with remote objects in the same way they do local objects. Therefore, it can provide a single machine image to programmers. We implemented a runtime compiler of Java bytecode to provide the facilities. The runtime compiler generates a native code which can handle remote objects beyond the network besides the local objects. The compiler uses semantic expansion, which is a technique that changes the original semantics of a Java bytecode. This paper presents the simple programming interface, the code generation method of MetaVM, and our experimental performance results. The results demonstrate efficiency of remote operations. Keywords: distributed object system, network transparency, Java Just-In-Time compiler 1 Introduction A distributed object system is an instrument to develop a network distributed system in object-oriented programming languages. One of important benefits of such systems is to release programmers from the burden of exchanging information via a network. Programmers can write a distributed system in an object-oriented manner without concern for communication protocols.
Kazuyuki Shudo; Yoichi Muraoka
Runtime Monitoring of Timing Constraints in Distributed Real-Time Systems
. Embedded real-time systems often operate under strict timing and dependability constraints. To ensure responsiveness, these systems must be able to provide the expected services in a timely manner even in the presence of faults. In this paper, we describe a run-time environment for monitoring of timing constraints in distributed real-time systems. In particular, we focus on the problem of detecting violations of timing assertions in an environment in which the real-time tasks run on multiple processors, and timing constraints can be either inter-processor or intra-processor constraints. Constraint violations are detected at the earliest possible time by deriving and checking intermediate constraints from the user-specified constraints. If the violations must be detected as early as possible, then the problem of minimizing the number of messages to be exchanged between the processors becomes intractable. We characterize a sub-class of timing constraints that occur commonly in distribu...
Farnam Jahanian; Ragunathan Rajkumar; Sitaram C. V. Raju
Runtime verification: the application perspective
In the past decade, Runtime Verification (RV) has gained much focus, from both the research community and practitioners. Roughly speaking, RV combines a set of theories, techniques and tools aiming towards efficient analysis of systems' executions and ...
Yli�s Falcone; Lenore D. Zuck
A uGNI-Based Asynchronous Message-driven Runtime System for Cray Supercomputers with Gemini Interconnect
Gemini as the network for new Cray XE/XT systems features low latency, high bandwidth and strong scalability. Its hardware support for remote direct memory access enables efficient implementation of the global address space programming languages. Although the Generic Network Interface (GNI) is designed to support message-passing applications, it is still challenging to attain good performance for applications written in alternative programming models, such as the message-driven programming model. In our earlier work we showed that CHARM++, an object-oriented message-driven programming model, scales up to the full Jaguar Cray machine. In this paper, we describe a general and light-weight asynchronous Low-level RunTime System (LRTS) for CHARM+, and its implementation on the uGNI software stack for Cray XE systems. Several techniques are presented to exploit the uGNI capability by reducing memory copy and registration overhead, taking advantage of persistent communication, and improving intra-node communication. Our micro-benchmark results demonstrate that the uGNI-based runtime system outperforms the MPI-based implementation by up to 50% in terms of message latency. For communication intensive applications such as N-Queens, this implementation scales up to 15,360 cores of a Cray XE6 machine and is 70% faster than an MPI-based implementation. In molecular dynamics application NAMD, the performance is also considerably improved by as high as 18%.
Sun, Yanhua [University of Illinois, Urbana-Champaign; Zheng, Gengbin [University of Illinois, Urbana-Champaign; Olson, Ryan M [Cray, Inc.; Jones, Terry R [ORNL; Kale, Laxmikant V [University of Illinois, Urbana-Champaign
Runtime verification of object lifetime specifications
This thesis reports on the implementation of a runtime verification system for object lifetime specifications. This system is used to explore and evaluate the expressiveness object lifetime specifications. Object lifetime ...
Benjamin, Zev (Zev A.)
C++ Encapsulated Dynamic Runtime Power Control for Embedded Systems Orlando J. Hernandez, Godfrey Dande, and John Ofri
. A combination of software profiling, voltage-scaling and frequency throttling, along with run-time speed tables. As more electronic appliances are developed, the demand for electric energy has increased. This tends smart. In the approach described in this paper, software is profiled in a real-time environment
Hernandez, Orlando
Runtime verification of service-oriented systems: a well-rounded survey
Dynamic nature of Service-Oriented Systems SOSs has made conventional verification techniques such as testing, model checking and theorem proving ineffective. As a result, many studies have been dedicated to verification of SOS. In this survey, we first ...
Reza Babaee; Seyed Morteza Babamir
Radiation modeling using the Uintah heterogeneous CPU/GPU runtime system
The Uintah Computational Framework was developed to provide an environment for solving fluid-structure interaction problems on structured adaptive grids on large-scale, long-running, data-intensive problems. Uintah uses a combination of fluid-flow solvers ... Keywords: GPU, Keeneland, TitanDev, Uintah, adaptive, heterogeneous systems, hybrid parallelism, parallel, scalability
Alan Humphrey; Qingyu Meng; Martin Berzins; Todd Harman
Investigating applications portability with the Uintah DAG-based runtime system on PetaScale supercomputers
Present trends in high performance computing present formidable challenges for applications code using multicore nodes possibly with accelerators and/or co-processors and reduced memory while still attaining scalability. Software frameworks that execute ... Keywords: Blue Gene/Q, GPU, Xeon Phi, adaptive, application, co-processor, heterogeneous systems, hybrid parallelism, parallel, scalability, software, uintah
Qingyu Meng, Alan Humphrey, John Schmidt, Martin Berzins
Runtime architecture adaptation for energy management in embedded real-time systems
Energy consumption has long been recognized as an important performance metric for many real-time and embedded systems. The traditional approach to energy-aware computing is to dynamically scale the voltage: this results in a significant drop in the ...
H. Wang; I. Koren; C. M. Krishna
A System-Level Model for Runtime Power Estimation on Mobile Devices
The growing popularity of mobile internet services, characterized by heavy network transmission, intensive computation and an always-on display, poses a great challenge to the battery lifetime of mobile devices. To manage the power consumption in an ... Keywords: regression, power model, system-level, mobile device
Yu Xiao; Rijubrata Bhaumik; Zhirong Yang; Matti Siekkinen; Petri Savolainen; Antti Yla-Jaaski
Renewable Electric Plant Information System user interface manual: Paradox 7 Runtime for Windows
DOE Green Energy (OSTI)
The Renewable Electric Plant Information System (REPiS) is a comprehensive database with detailed information on grid-connected renewable electric plants in the US. The current version, REPiS3 beta, was developed in Paradox for Windows. The user interface (UI) was developed to facilitate easy access to information in the database, without the need to have, or know how to use, Paradox for Windows. The UI is designed to provide quick responses to commonly requested sorts of the database. A quick perusal of this manual will familiarize one with the functions of the UI and will make use of the system easier. There are six parts to this manual: (1) Quick Start: Instructions for Users Familiar with Database Applications; (2) Getting Started: The Installation Process; (3) Choosing the Appropriate Report; (4) Using the User Interface; (5) Troubleshooting; (6) Appendices A and B.
A Path to Operating System and Runtime Support for Extreme Scale Tools
In this project, we cast distributed resource access as operations on files in a global name space and developed a common, scalable solution for group operations on distributed processes and files. The resulting solution enables tool and middleware developers to quickly create new scalable software or easily improve the scalability of existing software. The cornerstone of the project was the design of a new programming idiom called group file operations that eliminates iterative behavior when a single process must apply the same set of file operations to a group of related files. To demonstrate our novel and scalable ideas for group file operations and global name space composition, we developed a group file system called TBON-FS that leverages a tree-based overlay network (TBON), specifically MRNet, for logarithmic communication and distributed data aggregation. We also developed proc++, a new synthetic file system co-designed for use in scalable group file operations. Over the course of the project, we evaluated the utility and performance of group file operations, global name space composition, TBON-FS, and proc++ in three case studies. The first study focused on the ease in using group file operations and TBON-FS to quickly develop several new scalable tools for distributed system administration and monitoring. The second study evaluated the integration of group file operation and TBON-FS within the Ganglia Distributed Monitoring System to improve its scalability for clusters. The final study involved the integration of group file operations, TBON-FS, and proc++ within TotalView, the widely-used parallel debugger. For this project, the work of the Oak Ridge National Laboratory (ORNL) team occurred primarily in two directions: bringing the MRNet tree-based overlay network (TBON) implementation to the Cray XT platform, and investigating techniques for predicting the performance of MRNet topologies on such systems. Rogue Wave Software (RWS), formerly TotalView Technologies Inc., worked with the University ofWisconsin (UW) team on the design and prototyping of a scalable version of the TotalView debugger. RWS assisted UW with their "proc++" design effort. RWS assisted UW with strategy for integrating proc++ into TotalView.
Miller, Barton P.; Roth, Philip; DelSignore, John
Observation strategies for event detection with incidence on runtime verification: theory, algorithms, experimentation
Many applications (such as system and user monitoring, runtime verification, diagnosis, observation-based decision making, intention recognition) all require to detect the occurrence of an event in a system, which entails the ability to observe the system. ... Keywords: 68Q17, 68U99, 68W25, Complexity, Event detection, Logic programming, Runtime verification, Temporal logic
Marco Alberti; Pierangelo Dell'Acqua; Lu�s Moniz Pereira
Automated compile-time and run-time techniques to increase usable memory in MMU-less embedded systems
Random access memory (RAM) is tightly-constrained in many embedded systems. This is especially true for the least expensive, lowest-power embedded systems, such as sensor network nodes and portable consumer electronics. The most widely-used sensor network ... Keywords: data compression, embedded system, wireless sensor network
Lan S. Bai; Lei Yang; Robert P. Dick
Runtime analysis tools for parallel scientific applications
This paper describes the Alpaca runtime tools. These tools leverage the component infrastructure of the Cactus Framework in a novel way to enable runtime steering, monitoring, and interactive control of a simulation. Simulation data can be observed graphically, ... Keywords: frameworks, runtime visualization, software/program verification
Oleg Korobkin; Gabrielle Allen; Steven R. Brandt; Eloisa Bentivegna; Peter Diener; Jinghua Ge; Frank L�ffler; Erik Schnetter; Jian Tao
Pervasive parallelism for managed runtimes
Modern programming languages like C# or Java are executed in a managed runtime and offer support for concurrency at a high level of abstraction. However, high-level parallel abstractions (e.g., thread pools) can merely be provided as a library since ...
Albert Noll; Thomas R. Gross
Unifying design and runtime software adaptation using aspect models
Software systems are seen more and more as evolutive systems. At the design phase, software is constantly in adaptation by the building process itself, and at runtime, it can be adapted in response to changing conditions in the executing environment ... Keywords: Aspect oriented modeling, Software product lines
Carlos Parra; Xavier Blanc; Anthony Cleve; Laurence Duchien
Run-time optimization of adaptive irregular applications
Compared to traditional compile-time optimization, run-time optimization could o?er signi?cant performance improvements when parallelizing and optimizing adaptive irregular applications, because it performs program analysis and adaptive optimizations during program execution. Run-time techniques can succeed where static techniques fail because they exploit the characteristics of input data, programs' dynamic behaviors, and the underneath execution environment. When optimizing adaptive irregular applications for parallel execution, a common observation is that the effectiveness of the optimizing transformations depends on programs' input data and their dynamic phases. This dissertation presents a set of run-time optimization techniques that match the characteristics of programs' dynamic memory access patterns and the appropriate optimization (parallelization) transformations. First, we present a general adaptive algorithm selection framework to automatically and adaptively select at run-time the best performing, functionally equivalent algorithm for each of its execution instances. The selection process is based on off-line automatically generated prediction models and characteristics (collected and analyzed dynamically) of the algorithm's input data, In this dissertation, we specialize this framework for automatic selection of reduction algorithms. In this research, we have identi?ed a small set of machine independent high-level characterization parameters and then we deployed an off-line, systematic experiment process to generate prediction models. These models, in turn, match the parameters to the best optimization transformations for a given machine. The technique has been evaluated thoroughly in terms of applications, platforms, and programs' dynamic behaviors. Speci?cally, for the reduction algorithm selection, the selected performance is within 2% of optimal performance and on average is 60% better than "Replicated Buffer," the default parallel reduction algorithm speci?ed by OpenMP standard. To reduce the overhead of speculative run-time parallelization, we have developed an adaptive run-time parallelization technique that dynamically chooses effcient shadow structures to record a program's dynamic memory access patterns for parallelization. This technique complements the original speculative run-time parallelization technique, the LRPD test, in parallelizing loops with sparse memory accesses. The techniques presented in this dissertation have been implemented in an optimizing research compiler and can be viewed as effective building blocks for comprehensive run-time optimization systems, e.g., feedback-directed optimization systems and dynamic compilation systems.
Yu, Hao
The JCilk-1 runtime system
JCilk extends the Java language to provide call-return semantics for multithreading, much as Cilk does for C. Java's built-in thread model does not support the passing of exceptions or return values from one thread back ...
Danaher, John (John Stephen)
FY13 Computer Science FAQ | U.S. DOE Office of Science (SC)
2013 Exascale Operating and Runtime Systems 2013 Exascale Operating and Runtime Systems Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights Benefits of ASCR Funding Opportunities Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search 2013 Exascale Operating and Runtime Systems RX-Solvers FAQ Advanced Scientific Computing Advisory Committee (ASCAC) News & Resources Contact Information Advanced Scientific Computing Research U.S. Department of Energy SC-21/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-7486 F: (301) 903-4846 E: email@example.com More Information » Funding Opportunities 2013 Exascale Operating and Runtime Systems Print Text Size: A A A RSS Feeds FeedbackShare Page http://science.doe.gov/grants/pdf/LAB_13-02.pdf
U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let...
Energy.gov (U.S. Department of Energy (DOE)) Indexed Site
4: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let...
Design and implementation of a scalable membership service for supercomputer resiliency-aware runtime
As HPC systems and applications get bigger and more complex, we are approaching an era in which resiliency and run-time elasticity concerns become paramount. We offer a building block for an alternative resiliency approach in which computations will ...
Yoav Tock, Benjamin Mandler, Jos� Moreira, Terry Jones
U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote
14: Oracle Java Runtime Environment (JRE) Multiple Flaws Let 14: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service October 19, 2011 - 6:00pm Addthis PROBLEM: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service. PLATFORM: Oracle JDK and JRE 7; JDK and JRE 6 Update 27 and prior; JDK and JRE 5.0 Update 31 and prior; SDK and JRE 1.4.2_33 and prior ABSTRACT: A remote user can create a Java applet or Java Web Start application that, when loaded by the target user, will access or modify data or execute arbitrary code on the target user's system. reference LINKS: Oracle Critical Patch Updates and Security Alerts
4: Oracle Java Runtime Environment (JRE) Multiple Flaws Let 4: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service October 19, 2011 - 6:00pm Addthis PROBLEM: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service. PLATFORM: Oracle JDK and JRE 7; JDK and JRE 6 Update 27 and prior; JDK and JRE 5.0 Update 31 and prior; SDK and JRE 1.4.2_33 and prior ABSTRACT: A remote user can create a Java applet or Java Web Start application that, when loaded by the target user, will access or modify data or execute arbitrary code on the target user's system. reference LINKS: Oracle Critical Patch Updates and Security Alerts
Runtime verification for multicore SoC with high-quality trace data
Multicore System-on-Chip (SoC) implementations of embedded systems are becoming very popular. In these systems it is possible to spread out computations over many cores. On one hand this leads to better energy efficiency if clock frequencies and core ... Keywords: Multicore SoC, embedded system, runtime verification, synchronisation, test driven development, trace data
Rico Backasch; Christian Hochberger; Alexander Weiss; Martin Leucker; Richard Lasslop
Hybrid Run-time Power Management Technique for Realtime
This paper presents a new run-time power management technique for real-time embedded systems which consist of a voltage scalable processor and power controllable peripheral devices. We have observed that there exist significant trade-offs in terms of energy consumption between the Dynamic Power Management (DPM) scheme and the Dynamic Voltage Scaling (DVS) scheme over a wide range of system operating conditions. The proposed technique fully exploits workload-variation slack time by partitioning the task into several timeslots and shut down the unneeded peripheral device on timeslot-by-timeslot basis.
Minyoung Kim; Embedded System With
Runtime Identification of Microprocessor Energy Saving Opportunities
scaling (DVS). Also, future work in improving energy efficiency is motivated by a detailed analysis analysis of processor energy efficiency for the SPEC CPU 2000 benchmark suite. We motivate the developmentRuntime Identification of Microprocessor Energy Saving Opportunities W. L. Bircher, M. Valluri, J
John, Lizy Kurian
Prototyping a fault-tolerant multiprocessor SoC with run-time fault recovery
Modern integrated circuits (ICs) are becoming increasingly complex. The complexity makes it difficult to design, manufacture and integrate these high performance ICs. The advent of multiprocessor Systems-on-chips (SoCs) makes it even more challenging ... Keywords: fault-tolerance, multiprocessor system, network-on-chip, retargetable simulation, run-time verification, system-on-chip
Xinping Zhu; Wei Qin
Accurate Electrical Battery Model Capable of Predicting Runtime and I-V Performance
Abstract�Low power dissipation and maximum battery runtime are crucial in portable electronics. With accurate and efficient circuit and battery models in hand, circuit designers can predict and optimize battery runtime and circuit performance. In this paper, an accurate, intuitive, and comprehensive electrical battery model is proposed and implemented in a Cadence environment. This model accounts for all dynamic characteristics of the battery, from nonlinear open-circuit voltage, current-, temperature-, cycle number-, and storage time-dependent capacity to transient response. A simplified model neglecting the effects of self-discharge, cycle number, and temperature, which are nonconsequential in low-power Li-ion-supplied applications, is validated with experimental data on NiMH and polymer Li-ion batteries. Less than 0.4 % runtime error and 30-mV maximum error voltage show that the proposed model predicts both the battery runtime and I�V performance accurately. The model can also be easily extended to other battery and power sourcing technologies. Index Terms�Batteries, cadence simulation, electrical model, I�V performance, nickel-metal hydride battery, polymer lithiumion battery, runtime prediction, test system. I.
Min Chen; Student Member; Gabriel A. Rinc�n-mora; Senior Member
Runtime Assignment of Reconfigurable Hardware Components for Image Processing Pipelines
The combination of hardware acceleration and flexibility make FPGAs important to image processing applications. There is also a need for efficient, flexible hardware/software codesign environments that can balance the benefits and costs of using FPGAs. Image processing applications often consist of a pipeline of components where each component applies a different processing algorithm. Components can be implemented for FPGAs or software. Such systems enable an image analyst to work with either FPGA or software implementations of image processing algorithms for a given problem. The pipeline assignment problem chooses from alternative implementations of pipeline components to yield the fastest pipeline. Our codesign system solves the pipeline assignment problem to provide the most effective implementation automatically, so the image analyst can focus solely on choosing components which make up the pipeline. However, the pipeline assignment problem is NP complete. An efficient, dynamic solution to the pipeline assignment problem is a desirable enabler of codesign systems which use both FPGA and software implementations. This paper is concerned with solving pipeline assignment in this context. Consequently, we focus on optimal and heuristic methods for fast (fixed time limit) runtime pipeline assignment. Exhaustive search, integer linear programming and local search methods for pipeline assignment are investigated. We present experimental findings for pipelines of 20 or fewer components which show that in our environment, optimal runtime solutions are possible for smaller pipelines and nearly optimal heuristic solutions are possible for larger pipelines.
Heather Quinn; L. A. Smith King; Miriam Leeser; W. Meleis; Waleed Meleis
FORODT: Fortran debug routine for the PDP-11 (RT-11). [For run-time debugging
FORODT provides run-time debug features to PDP-11 Fortran programs running with the RT-11 operating system. Digital Equipment Corporation's ODT program has been extended to include Fortran breakpoints, decimal integer and floating point data input, and output options. 3 figures.
Tanner, D.N.
Runtime Detection of Heapbased Overflows
protection Figure 5: HTTP client throughput. Package glibc glibc + heap prot. OSDB 6,015 6,070 (+ 0 of deploying our heap protection system uses packages that install a protected glibc image alongside with the privileges of the victim process. This paper presents a technique that protects the heap management
Kruegel, Christopher
Runtime deadlock analysis for system level design
trigger() or wait() event will trigger or resume after theprovided by events and wait() or next_trigger() methodsTHREAD). Events are primitive behavior triggers. A process
Cheung, Eric; Chen, Xi; Hsieh, Harry; Davare, Abhijit; Sangiovanni-Vincentelli, Alberto; Watanabe, Yosinori
PARLO: PArallel Run-Time Layout Optimization for Scientific Data Explorations with Heterogeneous Access Pattern
Download Citation Email Print Request Permissions Save to Project The size and scope of cutting-edge scientific simulations are growing much faster than the I/O and storage capabilities of their run-time environments. The growing gap is exacerbated by exploratory, data-intensive analytics, such as querying simulation data with multivariate, spatio-temporal constraints, which induces heterogeneous access patterns that stress the performance of the underlying storage system. Previous work addresses data layout and indexing techniques to improve query performance for a single access pattern, which is not sufficient for complex analytics jobs. We present PARLO a parallel run-time layout optimization framework, to achieve multi-level data layout optimization for scientific applications at run-time before data is written to storage. The layout schemes optimize for heterogeneous access patterns with user-specified priorities. PARLO is integrated with ADIOS, a high-performance parallel I/O middleware for large-scale HPC applications, to achieve user-transparent, light-weight layout optimization for scientific datasets. It offers simple XML-based configuration for users to achieve flexible layout optimization without the need to modify or recompile application codes. Experiments show that PARLO improves performance by 2 to 26 times for queries with heterogeneous access patterns compared to state-of-the-art scientific database management systems. Compared to traditional post-processing approaches, its underlying run-time layout optimization achieves a 56% savings in processing time and a reduction in storage overhead of up to 50%. PARLO also exhibits a low run-time resource requirement, while also limiting the performance impact on running applications to a reasonable level.
Gong, Zhenhuan [North Carolina State University, Raleigh; Boyuka, David [North Carolina State University, Raleigh; Zou, X [North Carolina State University, Raleigh; Liu, Gary [ORNL; Podhorszki, Norbert [ORNL; Klasky, Scott A [ORNL; Ma, Xiaosong [North Carolina State University, Raleigh; Samatova, Nagiza F [ORNL
EIA - State Energy Data System
U.S. Energy Information Administration (EIA)
State Energy Data System (SEDS) 500 . Unhandled exception thrown from /emeu/states/hf.jsp:90 jrun.jsp.runtime ...
Scalable fault tolerant protocol for parallel runtime environments
The number of processors embedded on high performance computing platforms is growing daily to satisfy users desire for solving larger and more complex problems. Parallel runtime environments have to support and adapt to the underlying libraries and hardware ...
Thara Angskun; Graham E. Fagg; George Bosilca; Jelena Pje�ivac�Grbovi?; Jack J. Dongarra
New initiative on runtime compatibility for MPI implementations | Argonne
initiative on runtime compatibility for MPI implementations initiative on runtime compatibility for MPI implementations December 3, 2013 Tweet EmailPrint Researchers at Argonne National Laboratory have established an initiative to tackle the problem of maintaining runtime compatibility between message passing interface (MPI) implementations on high-performance computer architectures. The project, called the MPICH ABI Compatibility Initiative, involves the producers of several notable MPICH-derived message-passing implementations. MPICH is a high-performance, portable implementation of the MPI-1, MPI-2, and MPI-3 community standards for the message-passing model of parallel computation. Developed by an Argonne team of computer scientists, MPICH has become the de facto standard for scientific research on parallel computers
A comparative critical analysis of modern task-parallel runtimes.
The rise in node-level parallelism has increased interest in task-based parallel runtimes for a wide array of application areas. Applications have a wide variety of task spawning patterns which frequently change during the course of application execution, based on the algorithm or solver kernel in use. Task scheduling and load balance regimes, however, are often highly optimized for specific patterns. This paper uses four basic task spawning patterns to quantify the impact of specific scheduling policy decisions on execution time. We compare the behavior of six publicly available tasking runtimes: Intel Cilk, Intel Threading Building Blocks (TBB), Intel OpenMP, GCC OpenMP, Qthreads, and High Performance ParalleX (HPX). With the exception of Qthreads, the runtimes prove to have schedulers that are highly sensitive to application structure. No runtime is able to provide the best performance in all cases, and those that do provide the best performance in some cases, unfortunately, provide extremely poor performance when application structure does not match the scheduler's assumptions.
Wheeler, Kyle Bruce; Stark, Dylan; Murphy, Richard C. [Micron Technology, Inc., Boise, ID
Go with the flow: profiling copies to find runtime bloat
Many large-scale Java applications suffer from runtime bloat. They execute large volumes of methods, and create many temporary objects, all to execute relatively simple operations. There are large opportunities for performance optimizations in these ... Keywords: copy graph, heap analysis, memory bloat, profiling
Guoqing Xu; Matthew Arnold; Nick Mitchell; Atanas Rountev; Gary Sevitsky
Towards Reliable Smart Microgrid Behavior Using Runtime Model Synthesis
The dominant paradigm of centralized power generation, characterized by heavy transmission losses, is being slowly replaced by the smart micro grid, which promises the proliferation of renewable and distributed energy sources. Micro grid reliability ... Keywords: High Assurance, Model-Driven Development, Model Management, Microgrid, SmartGrid, Runtime Models
Mark Allison; Karl A. Morris; Zhenyu Yang; Peter J. Clarke; Fabio M. Costa
Specification and Runtime Verification of Java Card Programs
Java Card is a version of Java developed to run on devices with severe storage and processing restrictions. The applets that run on these devices are frequently intended for use in critical, highly distributed, mobile conditions. They are required to ... Keywords: Compiler, JCML, JML, Java Card, Runtime Verification
Umberto Souza da Costa; Anamaria Martins Moreira; Martin A. Musicante; Pl�cido A. Souza Neto
Prius: a runtime for hybrid computing
Prius is a framework for seamless execution of OpenCL programs across integrated, heterogeneous systems. Applications interfacing with Prius need not be aware of the characteristics of the hardware; instead the framework will automatically map kernel ...
Dominik Grewe
V-172: ISC BIND RUNTIME_CHECK Error Lets Remote Users Deny Service Against Recursive Resolvers
Energy.gov (U.S. Department of Energy (DOE))
A defect exists which allows an attacker to crash a BIND 9 recursive resolver with a RUNTIME_CHECK error in resolver.c
MUST: A Scalable Approach to Runtime Error Detection in MPI Programs
The Message-Passing Interface (MPI) is large and complex. Therefore, programming MPI is error prone. Several MPI runtime correctness tools address classes of usage errors, such as deadlocks or nonportable constructs. To our knowledge none of these tools scales to more than about 100 processes. However, some of the current HPC systems use more than 100,000 cores and future systems are expected to use far more. Since errors often depend on the task count used, we need correctness tools that scale to the full system size. We present a novel framework for scalable MPI correctness tools to address this need. Our fine-grained, module-based approach supports rapid prototyping and allows correctness tools built upon it to adapt to different architectures and use cases. The design uses PnMPI to instantiate a tool from a set of individual modules. We present an overview of our design, along with first performance results for a proof of concept implementation.
Hilbrich, T; Schulz, M; de Supinski, B R; Muller, M
Termination in language-based systems
Language run-time systems are increasingly being embedded in systems to support run-time extensibility via mobile code. Such systems raise a number of concerns when the code running in such systems is potentially buggy or untrusted. Although sophisticated access ... Keywords: Applets, Internet, Java, resource control, soft termination, termination
Algis Rudys; Dan S. Wallach
Machine Learning Based Online Performance Prediction for Runtime Parallelization and Task Scheduling
With the emerging many-core paradigm, parallel programming must extend beyond its traditional realm of scientific applications. Converting existing sequential applications as well as developing next-generation software requires assistance from hardware, compilers and runtime systems to exploit parallelism transparently within applications. These systems must decompose applications into tasks that can be executed in parallel and then schedule those tasks to minimize load imbalance. However, many systems lack a priori knowledge about the execution time of all tasks to perform effective load balancing with low scheduling overhead. In this paper, we approach this fundamental problem using machine learning techniques first to generate performance models for all tasks and then applying those models to perform automatic performance prediction across program executions. We also extend an existing scheduling algorithm to use generated task cost estimates for online task partitioning and scheduling. We implement the above techniques in the pR framework, which transparently parallelizes scripts in the popular R language, and evaluate their performance and overhead with both a real-world application and a large number of synthetic representative test scripts. Our experimental results show that our proposed approach significantly improves task partitioning and scheduling, with maximum improvements of 21.8%, 40.3% and 22.1% and average improvements of 15.9%, 16.9% and 4.2% for LMM (a real R application) and synthetic test cases with independent and dependent tasks, respectively.
Li, J; Ma, X; Singh, K; Schulz, M; de Supinski, B R; McKee, S A
A Modular Building Controls Virtual Test Bed for the Integrations of Heterogeneous Systems
internet, and BACnet compliant BAS. The middleware allowswith Building Automation Systems (BAS). Typical applicationssimulation tools and BAS for run-time data exchange. LAB/
Wetter, Michael
How the design of JML accommodates both runtime assertion checking and formal verification
Specifications that are used in detailed design and in the documentation of existing code are primarily written and read by programmers. However, most formal specification languages either make heavy use of symbolic mathematical operators, which discourages ... Keywords: JML language, formal methods, java language, program verification, programming by contract, runtime assertion checking, specification languages
Gary T. Leavens; Yoonsik Cheon; Curtis Clifton; Clyde Ruby; David R. Cok
JCML: A specification language for the runtime verification of Java Card programs
Java Card is a version of Java developed to run on devices with severe storage and processing restrictions. The applets that run on these devices are frequently intended for use in critical, highly distributed, mobile conditions. They are required to ... Keywords: JCML, JML, Java Card, Runtime verification
The Ravenscar-compliant hardware run-time (Ravenhart) kernel
Real-time embedded systems are increasingly becoming the foundation of control systems in both the aerospace and automotive worlds. This class of systems has to meet three requirements: strict timing constraints on operational ...
Silbovitz, Anna, 1979-
A timeshared, runtime reconfigurable hardware co-processing architecture
The constant desire for increased performance in microprocessor systems has led to the need for specialized hardware cores to accelerate specific computational tasks. In this thesis, we explore the potential of using FPGA ...
Gelb, Benjamin S
A Model-Driven Runtime Environment for Web Applications
A large part of software development these days deals with building so-called Web applications. Many of these applications are database-powered and exhibit a page layout and navigational structure that is close to the class structure of the entities being managed by the system. Also, there is often only limited...
J�rg Pleumann; Stefan Haustein
VMSTAR: synthesizing scalable runtime environments for sensor networks
Sensor networks are being deployed at massive scales, containing a range of platforms. Programming paradigms for sensor networks should meet the attendant challenges of scale and heterogeneity. Researchers have considered virtual machines as a means ... Keywords: network reprogramming, operating systems, programming languages, software synthesis, virtual machines, wireless sensor networks
Joel Koshy; Raju Pandey
System Assurance: Beyond Detecting Vulnerabilities, 1st edition
In this day of frequent acquisitions and perpetual application integrations, systems are often an amalgamation of multiple programming languages and runtime platforms using new and legacy content. Systems of such mixed origins are increasingly vulnerable ...
Nikolai Mansourov; Djenana Campara
An integrated debugging environment for reprogrammble hardware systems
Reprogrammable hardware systems are traditionally very difficult to debug due to their high level of parallelism. In our solution to this problem, features are inserted into the user's design which allow the system to be monitored and updated at runtime. ...
Kevin Camera; Hayden Kwok-Hay So; Robert W. Brodersen
Geyser-1: a MIPS R3000 CPU core with fine-grained run-time power gating
Geyser-1 is a MIPS CPU which provides a fine-grained run-time power gating (PG) controlled by instructions. Unlike traditional PGs, it uses special standard cells in which the virtual ground (VGND) is separated from the real ground, and a certain number ...
D. Ikebuchi; N. Seki; Y. Kojima; M. Kamata; L. Zhao; H. Amano; T. Shirai; S. Koyama; T. Hashida; Y. Umahashi; H. Masuda; K. Usami; S. Takeda; H. Nakamura; M. Namiki; M. Kondo
Architectures for Adaptive Low-Power Embedded Multimedia Systems.
??This Ph.D. thesis describes novel hardware/software architectures for adaptive low-power embedded multimedia systems. Novel techniques for run-time adaptive energy management are proposed, such that both� (more)
Shafique, Muhammad
V-132: IBM Tivoli System Automation Application Manager Multiple...
3.1, 3.2, 3.2.1, and 3.2.2 ABSTRACT: Multiple security vulnerabilities exist in the IBM Java Runtime Environment component of IBM Tivoli System Automation Application Manager which...
Data Parallel Execution Challenges and Runtime Performance of Agent Simulations on GPUs
Programmable graphics processing units (GPUs) have emerged as excellent computational platforms for certain general-purpose applications. The data parallel execution capabilities of GPUs specifically point to the potential for effective use in simulations of agent-based models (ABM). In this paper, the computational efficiency of ABM simulation on GPUs is evaluated on representative ABM benchmarks. The runtime speed of GPU-based models is compared to that of traditional CPU-based implementation, and also to that of equivalent models in traditional ABM toolkits (Repast and NetLogo). As expected, it is observed that, GPU-based ABM execution affords excellent speedup on simple models, with better speedup on models exhibiting good locality and fair amount of computation per memory element. Execution is two to three orders of magnitude faster with a GPU than with leading ABM toolkits, but at the cost of decrease in modularity, ease of programmability and reusability. At a more fundamental level, however, the data parallel paradigm is found to be somewhat at odds with traditional model-specification approaches for ABM. Effective use of data parallel execution, in general, seems to require resolution of modeling and execution challenges. Some of the challenges are identified and related solution approaches are described.
Perumalla, Kalyan S [ORNL; Aaby, Brandon G [ORNL
The Uintah Framework: A Unified Heterogeneous Task Scheduling and Runtime System
Computing Facility, "Titan Web Page," 2011, http://www.olcf.ornl.gov/titan/. [15] J. Vetter, R. Glassbrook
Utah, University of
Radiation Modeling Using the Uintah Heterogeneous CPU/GPU Runtime System
and Oak Ridge Leadership Computing Facility. Titan Web Page, 2011. http://www.olcf.ornl.gov/titan/. [25] C
A runtime relocation based workflow for self dynamic reconfigurable systems design
A self, partial and dynamic approach to reconfiguration makes it possible to obtain higher flexibility and better performance with respect to simpler approaches; however, the price for this improvement lies in the increased ...
Santambrogio, Marco Domenico
A Block-Oriented Language and Runtime System for Tensor Algebra with Very Large Arrays
Important classes of problems in computational chemistry, notably coupled cluster methods, consist of solutions to complicated expressions defined in terms of tensors. Tensors are represented by multidimensional arrays that are typically extremely large, ...
Beverly A. Sanders; Rod Bartlett; Erik Deumens; Victor Lotrich; Mark Ponton
Runtime systems and scheduling support for high-end cpu-gpu architectures
In recent years, multi-core CPUs and many-core GPUs have emerged as mainstream and cost-effective means for scaling. Consequently, a trend that is receiving wide attention is of heterogeneous computing platforms consisting of both CPU and GPU. Such heterogeneous ...
Vignesh Trichy Ravi / Gagan Agrawal
Run-time Modeling and Estimation of Operating System Power Consumption
software power evaluation, as well as power management (e.g. dynamic thermal control and equal energy of a commercial OS across a wide spectrum of applications to understand OS energy profiles and then proposes to track run- time OS energy profiles, the proposed routine level OS power model offers superior accuracy
Towards a multifrontal QR factorization for heterogeneous architectures over runtime systems
, computer architectures for high performance computing have considerably evolved toward heterogeneous. An example of popular heterogeneous architectures widely adopted in the high performance computing domain
Uçar, Bora
Improving energy saving in hard real time systems via a modified dual priority scheduling
In this paper, we present a modification of the Dual Priority scheduling algorithm, for hard real-time systems, that takes advantage of its performance to efficiently improve energy saving. The approach exploit the priority scheme to lengthen the runtime ...
M. Angels Moncusi; Alex Arenas; Jesus Labarta
Dynamic Fault-Tolerance and Metrics for Battery Powered, Failure-Prone Systems
Emerging VLSI technologies and platforms are giving rise tosystems with inherently high potential for runtime failure.Such failures range from intermittent electrical and mechanicalfailures at the system level, to device failures at the chip level.Techniques ...
Phillip Stanley-Marbell; Diana Marculescu
CHATR: a generic speech synthesis system
This paper describes a generic speech synthesis system called CHATR which is being developed at ATR. CHATR is designed in a modular way so that module parameters and even which modules are actually used may be set and selected at runtime. Although some ...
Alan W. Black; Paul Taylor
Robust runtime optimization and skew-resistant execution of analytical SPARQL queries on pig
We describe a system that incrementally translates SPARQL queries to Pig Latin and executes them on a Hadoop cluster. This system is designed to work efficiently on complex queries with many self-joins over huge datasets, avoiding job failures even in ...
Spyros Kotoulas; Jacopo Urbani; Peter Boncz; Peter Mika
Runtime I/O re-routing + throttling on HPC storage
Massively parallel storage systems are becoming more and more prevalent on HPC systems due to the emergence of a new generation of data-intensive applications. To achieve the level of I/O throughput and capacity that is demanded by data intensive applications, ...
Qing Liu, Norbert Podhorszki, Jeremy Logan, Scott Klasky
Resource Reclaiming in Hard Real-Time Systems with Static and Dynamic Workloads
This paper addresses resource reclaiming in the context of non-preemptive priority list scheduling for hard real-time systems. Such scheduling is inherently susceptible to multiprocessor timing anomalies. We present low overhead run-time stabilization methods for a general tasking model that allows phantom tasks as a mechanism to model processor external events. A family of scheduling algorithms is de?ned, that guarantees run-time stabilization for systems consisting of tasks with hard and soft deadlines. The later, i.e. soft tasks, may arrive dynamically. Stabilization is addressed in the context of dynamic and static task to processor allocation. Previous stabilization methods, focused on apriori stabilization for static workloads with dynamic task to processor allocation, thus cannot support this general scheduling model. By taking advantage of run-time information, the stabilization algorithms use the scan-window approach to prevent instability from occurring. Mechanisms are introduced that explicitly control the run-time behavior of tasks with hard deadlines. As a consequence, processor resources become available that can be used to improve processor utilization and response time of soft tasks. The resulting scan algorithms are intended for real world applications where low run-time overhead and a realistic task model are needed. 1
A. W. Krings; M. H. Azadmanesh
A profiling method by PCB hooking and its application for memory fault detection in embedded system operational test
Context: An operational test means a system test that examines whether or not all software or hardware components comply with the requirements given to a system which is deployed in an operational environment. Objective: It is a necessary lightweight-profiling ... Keywords: Embedded software, Embedded system, Operational test, PCB hooking, Profiling method, Runtime memory fault
Jooyoung Seo; Byoungju Choi; Suengwan Yang
Version-consistent dynamic reconfiguration of component-based distributed systems
There is an increasing demand for the runtime reconfiguration of distributed systems in response to changing environments and evolving requirements. Reconfiguration must be done in a safe and low-disruptive way. In this paper, we propose version consistency ... Keywords: component-based distributed system, dynamic reconfiguration, version-consistency
Xiaoxing Ma; Luciano Baresi; Carlo Ghezzi; Valerio Panzica La Manna; Jian Lu
xTune: A formal methodology for cross-layer tuning of mobile embedded systems
Resource-limited mobile embedded systems can benefit greatly from dynamic adaptation of system parameters. We propose a novel approach that employs iterative tuning using lightweight formal verification at runtime with feedback for dynamic adaptation. ... Keywords: Cross-layer optimization, formal methods, iterative tuning
Minyoung Kim; Mark-Oliver Stehr; Carolyn Talcott; Nikil Dutt; Nalini Venkatasubramanian
A modified dual-priority scheduling algorithm for hard real-time systems to improve energy savings
We present a modification of the dual-priority scheduling algorithm for hard real-time systems that takes advantage of its performance to efficiently improve energy saving. The approach exploits the priority scheme to lengthen the runtime of tasks by ... Keywords: dual-priority scheduling, energy-awareness, fixed-priority scheduling, hard real-time systems, on-line scheduling
M. Angels Moncus�; Alex Arenas; Jesus Labarta
Introduction to the ICCS 2007 Workshop on Dynamic Data Driven Applications Systems
This is the 5thInternational Workshop on Dynamic Data Driven Applications Systems (DDDAS), organized in conjunction with ICCS. The DDDAS concept entails the ability to dynamically incorporate data into an executing application simulation, ... Keywords: applications, dynamic runtime, grids, measurements, sensors
Frederica Darema
System support for exploration and expert feedback in resolving conflicts during integration of metadata
A critical reality in integration is that knowledge obtained from different sources may often be conflicting. Conflict-resolution, whether performed during the design phase or during run-time, can be costly and, if done without a proper understanding ... Keywords: Exploration of alternatives, Feedback-based conflict-resolution, Metadata integration, System feedback, Taxonomy, User feedback
K. Sel�uk Candan; Huiping Cao; Yan Qi; Maria Luisa Sapino
Real-time embedded systems powered by FPGA dynamic partial self-reconfiguration: a case study oriented to biometric recognition applications
This work aims to pave the way for an efficient open system architecture applied to embedded electronic applications to manage the processing of computationally complex algorithms at real-time and low-cost. The target is to define a standard architecture ... Keywords: Automatic fingerprint authentication system, Dynamic partial self-reconfiguration, FPGA, Reconfiguration controller, Run-time reconfigurable computing
Francisco Fons, Mariano Fons, Enrique Cant�, Mariano L�pez
Hybrid Systems Architectures
ion suppression of lower-level information not relevant for the current task Encapsulation (information hiding) implementation details are hidden, only interface information is visible F. Kurfe� Hybrid System Architectures ASHS '96 37 Inheritance common characteristics are derived from ancestors Polymorphism appropriate instances of classes and operators can be selected at runtime Advantages ffl very flexible ffl suitable for large systems ffl support reuse Problems ffl handling of new and atypical situations ffl quite complex ffl formal verification F. Kurfe� Hybrid System Architectures ASHS '96 38 Expert System What is an Expert System? Basic concepts ffl designer / user supplies facts and information ffl user asks queries and receives expert advice ffl limited to a problem domain (knowledge domain) Components ffl user interface ffl knowledge base ffl inference mechanism Synonyms: knowledge-based system, knowledge-based expert system F. Kurfe� Hybrid System Archi...
Franz J. Kurfe�
Co-Simulation of Building Energy and Control Systems with the Building Controls Virtual Test Bed
This article describes the implementation of the Building Controls Virtual Test Bed (BCVTB). The BCVTB is a software environment that allows connecting different simulation programs to exchange data during the time integration, and that allows conducting hardware in the loop simulation. The software architecture is a modular design based on Ptolemy II, a software environment for design and analysis of heterogeneous systems. Ptolemy II provides a graphical model building environment, synchronizes the exchanged data and visualizes the system evolution during run-time. The BCVTB provides additions to Ptolemy II that allow the run-time coupling of different simulation programs for data exchange, including EnergyPlus, MATLAB, Simulink and the Modelica modelling and simulation environment Dymola. The additions also allow executing system commands, such as a script that executes a Radiance simulation. In this article, the software architecture is presented and the mathematical model used to implement the co-simulation is discussed. The simulation program interface that the BCVTB provides is explained. The article concludes by presenting applications in which different state of the art simulation programs are linked for run-time data exchange. This link allows the use of the simulation program that is best suited for the particular problem to model building heat transfer, HVAC system dynamics and control algorithms, and to compute a solution to the coupled problem using co-simulation.
E-AMOM: An Energy-Aware Modeling and Optimization Methodology for Scientific Applications on Multicore Systems
Power consumption is an important constraint in achieving efficient execution on High Performance Computing Multicore Systems. As the number of cores available on a chip continues to increase, the importance of power consumption will continue to grow. In order to achieve improved performance on multicore systems scientific applications must make use of efficient methods for reducing power consumption and must further be refined to achieve reduced execution time. In this dissertation, we introduce a performance modeling framework, E-AMOM, to enable improved execution of scientific applications on parallel multicore systems with regards to a limited power budget. We develop models for each application based upon performance hardware counters. Our models utilize different performance counters for each application and for each performance component (runtime, system power consumption, CPU power consumption, and memory power consumption) that are selected via our performance-tuned principal component analysis method. Models developed through E-AMOM provide insight into the performance characteristics of each application that affect performance for each component on a parallel multicore system. Our models are more than 92% accurate across both Hybrid (MPI/OpenMP) and MPI implementations for six scientific applications. E-AMOM includes an optimization component that utilizes our models to employ run-time Dynamic Voltage and Frequency Scaling (DVFS) and Dynamic Concurrency Throttling to reduce power consumption of the scientific applications. Further, we optimize our applications based upon insights provided by the performance models to reduce runtime of the applications. Our methods and techniques are able to save up to 18% in energy consumption for Hybrid (MPI/OpenMP) and MPI scientific applications and reduce the runtime of the applications up to 11% on parallel multicore systems.
Lively, Charles
EIA 176 Query System, 2003
Gasoline and Diesel Fuel Update (EIA)
3 3 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2003 The EIA-176 Query System is a Windows-based system which runs under Windows operating systems 95, 98, 2000, NT - 4.0 Service Pack 3 or later. It provides a method of extracting and using the company level data filed on the Form EIA-176, and saving the query results in various media and formats. There are pre-selected data queries, which allow the user to select and run the most often-used queries, as well as the ability to create a customized query. Self-extracting executable files with run-time versions of Access are required to set up the system. You may also download the data tables if you already have Microsoft Access on your computer. For instructions, please refer to the documentation read the documentation file(s) listed below.
EIA 176 Query System, 2004
4 4 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2004 The EIA-176 Query System is a Windows-based system which runs under Windows operating systems 95, 98, 2000, NT - 4.0 Service Pack 3 or later. It provides a method of extracting and using the company level data filed on the Form EIA-176, and saving the query results in various media and formats. There are pre-selected data queries, which allow the user to select and run the most often-used queries, as well as the ability to create a customized query. Self-extracting executable files with run-time versions of Access are required to set up the system. You may also download the data tables if you already have Microsoft Access on your computer. For instructions, please refer to the documentation listed below.
EIA 176 Query System, 2001
1 1 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2001 The EIA-176 Query system is a Windows-based system which runs under Windows operating systems 95, 98, 2000, NT - 4.0 Service Pack 3 or later. It provides a method of extracting and using the company level data filed on the Form EIA-176, and saving the query results in various media and formats. There are pre-selected data queries, which allow the user to select and run the most often-used queries, as well as the ability to create a customized query. Self-extracting executable files with run-time versions of Access are required to set up the system. You may also download the data tables if you already have Microsoft Access on your computer. For instructions, please read the documentation file(s) listed below
Gain Time Reclaiming in High Performance Real-Time Java Systems
The run-time characteristics of Java, such as high frequency of method invocation, dynamic dispatching and dynamic loading, make Java more difficult than other object-oriented programming languages, such as C++, for conducting Worst-Case Execution Time (WCET) analysis. To offer a more flexible way to develop object-oriented real-time applications in the realtime Java environment without loss of predicability and performance, we propose a novel gain time reclaiming framework integrated with WCET analysis. This paper demonstrates how to improve the utilisation and performance of the whole system by reclaiming gain time at run-time. Our approach shows that integrating WCET with gain time reclaiming can not only provide a more flexible environment, but it also does not necessarily result in unsafe or unpredictable timing behaviour.
Erik Yu-Shing Hu; Andy Wellings; Guillem Bernat
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Autonomous, teleoperated, and shared control of robot systems
This paper illustrates how different modes of operation such as bilateral teleoperation, autonomous control, and shared control can be described and implemented using combinations of modules in the SMART robot control architecture. Telerobotics modes are characterized by different ``grids`` of SMART icons, where each icon represents a portion of run-time code that implements a passive control law. By placing strict requirements on the module`s input-output behavior and using scattering theory to develop a passive sampling technique, a flexible, expandable telerobot architecture is achieved. An automatic code generation tool for generating SMART systems is also described.
Anderson, R.J.
ACE: A Resource-Aware Adaptive Compression Environment Sezgin Sucu Chandra Krintz
Runtime Platform (ORP) [4]. ORP is a dynamic optimization system from Intel Corporation that is available
Krintz, Chandra
A Novel Gain Time Reclaiming Framework Integrating WCET Analysis for Object-Oriented Real-Time Systems
This paper proposes a novel gain time reclaiming framework integrating WCET analysis for objectoriented real-time systems in order to provide greater flexibility and without loss of the predictability and e#- ciency of the whole system. In this paper we present an approach which demonstrates how to improve the utilisation and overall performance of the whole system by reclaiming gain time at run-time. Our approach shows that integrating WCET with gain time reclaiming not only can provide a more flexible environment to develop object-oriented real-time applications, but it also does not necessarily result in unsafe or unpredictable timing analysis.
Erik Yu-shing Hu; Andy Wellings; Guillem Bernat
V-132: IBM Tivoli System Automation Application Manager Multiple
2: IBM Tivoli System Automation Application Manager Multiple 2: IBM Tivoli System Automation Application Manager Multiple Vulnerabilities V-132: IBM Tivoli System Automation Application Manager Multiple Vulnerabilities April 12, 2013 - 6:00am Addthis PROBLEM: IBM has acknowledged multiple vulnerabilities in IBM Tivoli System Automation Application Manager PLATFORM: The vulnerabilities are reported in IBM Tivoli System Automation Application Manager versions 3.1, 3.2, 3.2.1, and 3.2.2 ABSTRACT: Multiple security vulnerabilities exist in the IBM Java Runtime Environment component of IBM Tivoli System Automation Application Manager which may affect the product REFERENCE LINKS: Secunia Advisory: SA53006 IBM Security Bulletin 21633991 IBM Security Bulletin 21633992 CVE-2011-3563 CVE-2012-0497 CVE-2012-0498 CVE-2012-0499 CVE-2012-0501
Abstract Developing usable and robust mixed reality systems requires unique human�computer interaction techniques and customized hardware systems. The design of the hardware is directed by the requirements of the rich 3D interactions that can be performed using immersive mobile MR systems. Geometry modeling and capture, navigational annotations, visualizations, and training simulations are all enhanced using augmented computer graphics. We present the design guidelines that have led us through 10 years of evolving mobile outdoor MR hardware systems.
Benjamin Avery; Ross T. Smith; Wayne Piekarski; Bruce H. Thomas
Argo: An exascale operating system | Argonne National Laboratory
Argo: An exascale operating system Argo: An exascale operating system Architecture overview of Argo Architecture overview of Argo Argo is a new exascale operating system and runtime system designed to support extreme-scale scientific computation. It is built on an agile, new modular architecture that supports both global optimization and local control. It aims to efficiently leverage new chip and interconnect technologies while addressing the new modalities, programming environments, and workflows expected at exascale. It is designed from the ground up to run future high-performance computing applications at extreme scales. At the heart of the project are four key innovations: dynamic reconfiguring of node resources in response to workload, allowance for massive concurrency, a hierarchical framework for power and fault management, and a
The SysMES Framework: System Management for Networked Embedded Systems and Clusters
Automated system management for large distributed and heterogeneous environments is a common challenge in modern computer sciences. Desired properties of such a management system are, among others, a minimal dependency on human operators for problem recognition and solution, adaptability to increasing loads, fault tolerance and the flexibility to integrate new management resources at runtime. Existing tools address parts of these requirements however there is no single integrated framework which possesses all mentioned characteristics. SysMES was developed as an integrated framework for automated monitoring and management of networked devices. In order to achieve the requirements of scalability and fault tolerance, a fully distributed and decentralized architecture has been chosen. The framework comprises a monitoring module, a rule engine and an executive module for the execution of actions. A formal language has been defined which allows administrators to define complex spatial and temporal rule conditions ...
Lara Martinez, Camilo Ernesto
EIA 176 Query System, 2002
2 2 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2002 EIA 176 Query System 2002 Release date: February 2, 2004 Next release date: February 2005 The EIA-176 Query system is a Windows-based system which runs under Windows operating systems 95, 98, 2000, NT - 4.0 Service Pack 3 or later. It provides a method of extracting and using the company level data filed on the Form EIA-176, and saving the query results in various media and formats. There are pre-selected data queries, which allow the user to select and run the most often-used queries, as well as the ability to create a customized query. Self-extracting executable files with run-time versions of Access are required to set up the system. You may also download the data tables if you already have Microsoft Access on your computer. For instructions, please read the documentation file(s) listed below.
EIA - State Energy Data System - U.S. Energy Information ...
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Designing a new operating system for exascale architectures | Argonne
Designing a new operating system for exascale architectures Designing a new operating system for exascale architectures August 7, 2013 Tweet EmailPrint Argonne National Laboratory has been awarded a grant from the Department of Energy Office of Science to lead Argo, a multi-institutional research project to design and develop a platform-neutral prototype of an exascale operating system and runtime software. Researchers in Argonne's Mathematics and Computer Science Division will collaborate with scientists from Pacific Northwest National Laboratory and Lawrence Livermore National Laboratory, as well as with several universities nationwide, on the three-year, $9.75 million project. The world's fastest computers have proved essential for scientific discoveries, spanning from designing new materials to understanding the
Runtime Reprioritization for Online Aggregation Queries.
??The need for interactive ad-hoc analytics has been steadily rising. The traditional batch processing of large data takes order of seconds to several minutes for� (more)
Tunga Gopinath, Karthik
A Dynamic Platform for Runtime Adaptation
We present a middleware platform for assembling pervasive applications that demand fault-tolerance and adaptivity in distributed, dynamic environments. Unlike typical adaptive middleware approaches, in which sophisticated ...
Pham, Hubert
System Design Document: Hardware Accelerated Market Order Packet Generation
This document specifies the design of Hardware Accelerated Market Order Packet Generator. The designed system aims at accelerating the release of packets on the network. Optimization is acheived in terms of reducing the latency, decreasing the data uploaded on the Avalon bus which will eventually lead to power optimization. A software application running on a soft-processor would change the transaction-data going over the network in runtime. This document describes the overall architecture of the system, along with describing the design of the custom ethernet accelerator. Typically the ethernet controller should be capable of receiving and sending data over the network. Our implementation will accelerate the sending of data to the network. The receiving of data will still be handled in software.
Ankur Gupta; Dhananjay Palshikar; Mithila Paryekar; Sushant Bhardwaj
The Impact of a Fault Tolerant MPI on Scalable Systems Services and Applications
Exascale targeted scientific applications must be prepared for a highly concurrent computing environment where failure will be a regular event during execution. Natural and algorithm-based fault tolerance (ABFT) techniques can often manage failures more efficiently than traditional checkpoint/restart techniques alone. Central to many petascale applications is an MPI standard that lacks support for ABFT. The Run-Through Stabilization (RTS) proposal, under consideration for MPI 3, allows an application to continue execution when processes fail. The requirements of scalable, fault tolerant MPI implementations and applications will stress the capabilities of many system services. System services must evolve to efficiently support such applications and libraries in the presence of system component failures. This paper discusses how the RTS proposal impacts system services, highlighting specific requirements. Early experimentation results from Cray systems at ORNL using prototype MPI and runtime implementations are presented. Additionally, this paper outlines fault tolerance techniques targeted at leadership class applications.
Graham, Richard L [ORNL; Hursey, Joshua J [ORNL; Vallee, Geoffroy R [ORNL; Naughton, III, Thomas J [ORNL; Boehm, Swen [ORNL
A Framework for Evaluating Deployed Security Systems: Is There a Chink in your ARMOR?
A growing number of security applications are being developed and deployed to explicitly reduce risk from adversaries � actions. However, there are many challenges when attempting to evaluate such systems, both in the lab and in the real world. Traditional evaluations used by computer scientists, such as runtime analysis and optimality proofs, may be largely irrelevant. The primary contribution of this paper is to provide a preliminary framework which can guide the evaluation of such systems and to apply the framework to the evaluation of ARMOR (a system deployed at LAX since August 2007). This framework helps to determine what evaluations could, and should, be run in order to measure a system�s overall utility. A secondary contribution of this paper is to help familiarize our community with some of the difficulties inherent in evaluating deployed applications, focusing on those in security domains. Povzetek: Kako ovrednotiti varnostne aplikacije, kot recimo sistem ARMOR, ki je od 2007 dalje v uporabi na LAX?
Matthew E. Taylor; Christopher Kiekintveld; Craig Western; Milind Tambe
Strategic planning for power system restorations
This paper considers the power system restoration planning problem (PSRPP) for disaster recovery, a fundamental problem faced by all populated areas. PSRPPs are complex stochastic optimization problems that combine resource allocation, warehouse location, and vehicle routing considerations. Furthermore, electrical power systems are complex systems whose behavior can only be determined by physics simulations. Moreover, these problems must be solved under tight runtime constraints to be practical in real-world disaster situations. This work is three fold: (1) it formalizes the specification of PSRPPs; (2) introduces a simple optimization-simulation hybridization necessary for solving PSRPPs; and (3) presents a complete restoration algorithm that utilizes the strengths of mixed integer programming, constraint programming, and large neighborhood search. This paper studied a novel problem in the field of humanitarian logistics, the Power System Restoration Problem (PSRPP). The PSRPP models the strategic planning process for post disaster power system recovery. The paper proposed a multi-stage stochastic hybrid optimization algorithm that yields high quality solutions to real-world benchmarks provided by Los Alamos National Laboratory (LANL). The algorithm uses a variety of technologies, including MIP, constraint programming, and large neighborhood search, to exploit the structure of each individual optimization subproblem. The experimental results on hurricane disaster benchmarks indicate that the algorithm is practical from a computational standpoint and produce significant improvements over existing relief delivery procedures.
Bent, Russell W [Los Alamos National Laboratory; Van Hententyck, Pascal [BROWN UNIV.; Coffrin, Carleton [BROWN UNIV.
A Model for Developing Component-Based and Aspect-Oriented Systems
Abstract. Aspect-Oriented Programming (AOP) and Component-Based Software Engineering (CBSE) offer solutions to improve the separation of concerns and to enhance a program structure. If the integration of AOP into CBSE has already been proposed, none of these solutions focus on the application of CBSE principles to AOP. In this paper we propose a twofold integration of AOP and CBSE. We introduce a general model for components and aspects, named Fractal Aspect Component (FAC). FAC decomposes a software system into regular components and aspect components (ACs), where an AC is a regular component that embodies a crosscutting concern. We reify the aspect domain of an AC and the relationship between an AC and a component, called an aspect binding, as first-class runtime entities. This clarifies the architecture of a system where components and aspects coexist. The system can evolve from the design to the execution by adding or removing components, aspects or bindings. 1
Nicolas Pessemier; Lionel Seinturier; Thierry Coupaye; Laurence Duchien
Autonomous Observing and Control Systems for PAIRITEL, a 1.3m Infrared Imaging Telescope
The Peters Automated Infrared Imaging Telescope (PAIRITEL) is the first meter-class telescope operating as a fully robotic IR imaging system. Dedicated in October 2004, PAIRITEL began regular observations in mid-December 2004 as part of a 1.5 year commissioning period. The system was designed to respond without human intervention to new gamma-ray burst transients: this milestone was finally reached on November 9, 2005 but the telescope had a number of semi-automated sub-10 minute responses throughout early commissioning. When not operating in Target of Opportunity mode, PAIRITEL performs a number of queue scheduled transient monitoring campaigns. To achieve this level of automation, we have developed communicating tools to connect the various sub-systems: an intelligent queue scheduling database, run-time configurable observation sequence software, a data reduction pipeline, and a master state machine which monitors and controls all functions within and affecting the observatory.
J. S. Bloom; Dan L. Starr; Cullen H. Blake; M. F. Skrutskie; Emilio E. Falco
Simulation-based Performance Analysis and Tuning for a Two-level Directly Connected System
Hardware and software co-design is becoming increasingly important due to complexities in supercomputing architectures. Simulating applications before there is access to the real hardware can assist machine architects in making better design decisions that can optimize application performance. At the same time, the application and runtime can be optimized and tuned beforehand. BigSim is a simulation-based performance prediction framework designed for these purposes. It can be used to perform packet-level network simulations of parallel applications using existing parallel machines. In this paper, we demonstrate the utility of BigSim in analyzing and optimizing parallel application performance for future systems based on the PERCS network. We present simulation studies using benchmarks and real applications expected to run on future supercomputers. Future petascale systems will have more than 100,000 cores, and we present simulations at that scale.
Totoni, E; Bhatele, A; Bohm, E J; Jain, N; Mendes, C L; Mokos, R M; Zheng, G; Kale, L V
Informatica 29 page xxx�yyy 1 A Framework for Evaluating Deployed Security Systems: Is There a Chink in your ARMOR?
A growing number of security applications are being developed and deployed to explicitly reduce risk from adversaries � actions. However, there are many challenges when attempting to evaluate such systems, both in the lab and in the real world. Traditional evaluations used by computer scientists, such as runtime analysis and optimality proofs, may be largely irrelevant. The primary contribution of this paper is to provide a preliminary framework which can guide the evaluation of such systems and to apply the framework to the evaluation of ARMOR (a system deployed at LAX since August 2007). This framework helps to determine what evaluations could, and should, be run in order to measure a system�s overall utility. A secondary contribution of this paper is to help familiarize our community with some of the difficulties inherent in evaluating deployed applications, focusing on those in security domains. 1
Efficient Power Profiling for Battery-Driven Embedded System Design
The ability to efficiently and accurately estimate battery life under different design choices at the system level is an important aid in designing battery-efficient systems. Recently developed battery models help by estimating battery life under given profiles of the battery discharge current over time. However, existing techniques for energy (or average power) estimation do not provide sufficient information (such as time profiles of system power consumption) to drive battery-life estimation. Techniques that are capable of generating such profiles often lack the efficiency required to support exploration at the system level. In this paper, we describe techniques for efficient generation of system-level power profiles, for use in a battery-life estimation framework. Our power profiling technique allows a designer to experiment with: 1) the mapping of system tasks to a set of architectural components and 2) the mapping of system communications to a specified communication architecture, and efficiently generate system power profiles for each alternative. The resulting profiles can then be analyzed using existing battery models to estimate battery lifetime and capacity. Extensive experiments conducted on an IEEE 802.11 MAC processor design demonstrate that our power profiler offers orders of magnitude improvement in runtimes over state-of-the-art cosimulation-based power estimation techniques, while suffering minimal loss of accuracy (average profiling error was 3.8%).
Kanishka Lahiri; Anand Raghunathan; Senior Member; Sujit Dey
A distributed hard real-time Java system for high mobility components
In this work we propose a methodology for providing real-time capabilities to component-based, on-the-fly recon?gurable, distributed systems. In such systems, software components migrate across computational resources at run-time to allow applications to adapt to changes in user requirements or to external events. We describe how we achieve run-time recon?guration in distributed Java applications by appropriately migrating servers. Guaranteed-rate schedulers at the servers provide the necessary temporal protection and so simplify remote method invocation management. We describe how we manage overhead and resource utilization by controlling the parameters of the server schedulers. According to our measurements, this methodology provides real-time capability to component-based recon?gurable distributed systems in an effcient and effective way. In addition, we propose a new resource discovery protocol, REALTOR, which is based on a combination of pull-based and push-based resource information dissemination. REALTOR has been designed for real-time component-based distributed applications in very dynamic or adverse environments. REALTOR supports survivability and information assurance by allowing the migration of components to safe locations under emergencies suchas externalattack, malfunction, or lackofresources. Simulation studies show that under normal and heavy load conditions REALTOR remains very effective in finding available resources, and does so with a reasonably low communication overhead.REALTOR 1)effectively locates resources under highly dynamic conditions, 2) has an overhead that is system-size independent, and 3) works well in highlyadverse environments.We evaluate the effectiveness of a REALTOR implementation as part of Agile Objects, an infrastructure for real-time capable, highly mobile Java components.
Rho, Sangig
Checking the Data Sharing Strategies of Concurrent Systems Level Code
lines of applica- tion and benchmark code, and observe manageable overheadssmall (about 400k lines) Linux kernel. Overhead incurred byover 500k lines of code. Runtime overhead av- eraged 11%
Anderson, Zachary Ryan
EIA - State Energy Data System - Energy Information Administration
Simulation of Energy Management Systems in EnergyPlus
An energy management system (EMS) is a dedicated computer that can be programmed to control all of a building's energy-related systems, including heating, cooling, ventilation, hot water, interior lighting, exterior lighting, on-site power generation, and mechanized systems for shading devices, window actuators, and double facade elements. Recently a new module for simulating an EMS was added to the EnergyPlus whole-building energy simulation program. An essential part of the EMS module is the EnergyPlus Runtime Language (ERL), which is a simple programming language that is used to specify the EMS control algorithms. The new EMS controls and the flexibility of ERL allow EnergyPlus to simulate many novel control strategies that are not possible with the previous generation of building energy simulation programs. This paper surveys the standard controls in EnergyPlus, presents the new EMS features, describes the implementation of the module, and explores some of the possible applications for the new EMS capabilities in EnergyPlus.
Ellis, P. G.; Torcellini, P. A.; Crawley, D.
Thermal vs energy optimization for dvfs-enabled processors in embedded systems
Abstract � In the past, dynamic voltage and frequency scaling (DVFS) has been widely used for power and energy optimization in embedded system design. As thermal issues become increasingly prominent, we propose design-time thermal optimization techniques for embedded systems. By carefully planning DVFS at design time, our techniques proactively optimize system thermal profile, prevent run-time thermal emergencies, minimize cooling costs, and optimize system performance. To the best of our knowledge, this is the first work addressing embedded system designtime thermal optimization using DVFS. We formulate minimization of application peak temperature in the presence of real-time constraints as a nonlinear programming problem. This provides a powerful framework for system designers to determine a proper thermal solution and provide a lower bound on the minimum temperature achievable by DVFS. Furthermore, we examine the differences between optimal energy solutions and optimal peak temperature solutions. Experimental results indicate that optimizing energy consumption can lead to unnecessarily high temperature. Finally, we propose a thermal-constrained energy optimization procedure to minimize system energy consumption under a constraint on peak temperature. I.
Yongpan Liu; Huazhong Yang; Robert P. Dick; Hui Wang; Li Shang
Alchemi: A .NET-based Enterprise Grid Computing System
Computational grids that couple geographically distributed resources are becoming the de-facto computing platform for solving large-scale problems in science, engineering, and commerce. Software to enable grid computing has been primarily written for Unix-class operating systems, thus severely limiting the ability to effectively utilize the computing resources of the vast majority of Windows-based desktop computers. Addressing Windows-based grid computing is particularly important from the software industry's viewpoint where interest in grids is emerging rapidly. Microsoft's .NET Framework has become near-ubiquitous for implementing commercial distributed systems for Windows-based platforms, positioning it as the ideal platform for grid computing in this context. In this paper we present Alchemi , a .NETbased framework that provides the runtime machinery and programming environment required to construct enterprise/desktop grids and develop grid applications. It allows flexible application composition by supporting an object-oriented application programming model in addition to a file-based job model. Cross-platform support is provided via a web services interface and a flexible execution model supports dedicated and non-dedicated (voluntary) execution by grid nodes.
Akshay Luther; Rajkumar Buyya; Rajiv Ranjan; Srikumar Venugopal
Efficient virtual machine support of runtime structural reflection
Increasing trends towards adaptive, distributed, generative and pervasive software have made object-oriented dynamically typed languages become increasingly popular. These languages offer dynamic software evolution by means of reflection, facilitating ... Keywords: Dynamically typed languages, JIT compilation, Prototype-based object-oriented model, SSCLI, Structural reflection, Virtual machine
Francisco Ortin; Jose Manuel Redondo; J. Baltasar Garc�a Perez-Schofield
NDSeq: runtime checking for nondeterministic sequential specifications of parallel correctness
We propose to specify the correctness of a program's parallelism using a sequential version of the program with controlled nondeterminism. Such a nondeterministic sequential specification allows (1) the correctness of parallel interference to ... Keywords: parallel correctness, serializability, specification
Jacob Burnim; Tayfun Elmas; George Necula; Koushik Sen
Transparent run-time defense against stack smashing attacks
The exploitation of buffer overflow vulnerabilities in process stacks constitutes a significant portion of security attacks. We present two new methods to detect and handle such attacks. In contrast to previous work, the new methods work with any existing ...
Arash Baratloo; Navjot Singh; Timothy Tsai
Generalizing mapreduce as a unified cloud and HPC runtime
Computational simulation and analysis were one of the keys to the future in data-intensive science as a "fourth paradigm" of scientific discovery but facing a major challenge as handling the incredible increases in dataset sizes. This requires attractive ... Keywords: HPC, cloud, data analysis, fault tolerance, interoperability, iterative mapreduce, map collective, scaling performance
Judy Qiu
Runtime detection and optimization of collective communication patterns
Parallelism is steadily growing, remote-data access will soon dominate the execution time of large-scale applications. Many large-scale communication patterns expose significant structure that can be used to schedule communications accordingly. In this ... Keywords: collective operations, dynamic optimization, mpi
Torsten Hoefler; Timo Schneider
Unifying Design and Runtime Software Adaptation Using Aspect Models
guides de la CIBSE (CIBSE, 2005 et CIBSE, 2006). 22.214.171.124 Corrélation de Phaff et De Gids Phaff et De Gids
Paris-Sud XI, Université de
Towards Runtime Reconfiguration of Application Control Policies in the Cloud
The main contribution of this paper is the description of an architecture for dynamically controlling the behavior of the applications deployed in the Cloud by using a set of high-level rules. This architecture is flexible enough to enable the re-definition ... Keywords: Application governance, Cloud, Dynamic reconfiguration, Rule based, Service behavior
Luis M. Vaquero; Daniel Mor�n; Ferm�n Gal�n; Jose M. Alcaraz-Calero
Investigating Autonomic Runtime Management Strategies for SAMR Applications
allocation, data-distribution, load balancing, communica- tion, and coordination. Furthermore, the underlying the performance of SAMR applications in distributed and dynamic Grid execution environments. Key Grid Jingmei Yang,2 Yeliang Zhang,2 Manish Parashar,1 and Salim Hariri2 1 Department of Electrical and Computer
Parashar, Manish
Inline Integration: A new mixed symbolic/numeric approach for solving differential-algebraic equation systems
This paper presents a new method for solving di erential{algebraic equation systems using a mixed symbolic and numeric approach. Discretization formulae representing the numerical integration algorithm are symbolically inserted into the di erential{algebraic equation model. The symbolic formulae manipulation algorithm of the model translator treats these additional equations in the same way as it treats the physical equations of the model itself, i.e., it looks at the augmented set of algebraically coupled equations and generates optimized code to be used with the underlying simulation run{time system. For implicit integration methods, a large nonlinear system of equations needs to be solved at every time step. It is shown that the presented uniform treatment of model equations and discretization formulae often leads to a signi cant reduction of the number of iteration variables and therefore to a substantial increase in execution speed. In a large mechatronics system consisting of a six degree{of{freedom robot together with its motors, drive trains, and control systems, this approach led to a speedup factor of more than ten.
Hilding Elmqvist; Martin Otter; Francois E. Cellier
A new parallel association rule mining algorithm on distributed shared memory system
Frequent itemset finding is the most time consuming step in analysing large transactional databases. The use of sequential algorithms cannot give analytical ability for such very large databases especially in terms of run-time performance. Therefore, ...
Mohamed H. Marghny; Hosam E. Refaat
Development of Fast-Time Simulation Techniques to Model Safety Issues in the National Airspace System
NASA nm PIREP RAM RFS RTI SJSU SOM UCB Aviation PerformanceHLA interface standards and RTI software. Demonstration ofits Run-Time Interface (RTI) appears to be a very efficient
Dynamic computation migration in DSM systems
We describe dynamic computation migration, the runtime choice between computation and data migration. Dynamic computation migration is useful for concurrent data structures with unpredictable read/write patterns. We implemented it in MCRL, a multithreaded ... Keywords: computation migration, data migration, replication, coherence
Wilson C. Hsieh; M. Frans Kaashoek; William E. Weihl
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.
Some new applications of supercapacitors in power electronic systems
This thesis explores some new applications in power electronics for supercapacitors. This involves the design and development of dc-dc converters to interface the supercapacitor banks with the rest of the power electronic system. Two applications for supercapacitors are proposed and analyzed. The first application is aimed at high power applications such as motor drives. The proposed approach compensates the effect of voltage sags in the dc link of typical adjustable speed drives, thus reducing speed fluctuations in the motor and eliminating the possibility of nuisance tripping on the drive control board. The second approach presented in this thesis explores the use of supercapacitors to extend run-time for mobile devices such as laptop computers and hand held devices. Three possible approaches are explored: a) Supercapacitors connected directly across the battery; b) Battery-inductor-supercapacitor connection; and c) Supercapacitor, and battery connected via a DC-DC converter. Analytical models, simulation and experimental results on a typical laptop computer are presented.
Palma Fanjul, Leonardo Manuel
Enhancing I/O Throughput via Efficient Routing and Placement for Large-scale Parallel File Systems
As storage systems get larger to meet the demands of petascale systems, careful planning must be applied to avoid congestion points and extract the maximum performance. In addition, the large data sets generated by such systems makes it desirable for all compute resources 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 using half of the resources of Spider the center-wide file system at the Oak Ridge Leadership Computing Facility show that I/O write bandwidth can be improved by up to 45% (from 71.9 to 104 GB/s) for a direct-attached configuration and by 137% (47.6 GB/s to 115 GB/s) for a routed configuration. We demonstrated up to 20.7% reduction in run-time for production scientific applications. With the full Spider system, we demonstrated over 240 GB/s of aggregate bandwidth using our techniques.
Dillow, David A [ORNL; Shipman, Galen M [ORNL; Oral, H Sarp [ORNL; Zhang, Zhe [ORNL; Kim, Youngjae [ORNL
Concurrency in a System for Symbolic and Algebraic Computations
As miniaturization of computer components is approaching the limits of physics, researchers in computer architecture are looking for less conventional means to perpetuate Moore's law. Recent trends in hardware ve been adding more cores. Consequently multicore machines are now commodity. To help programmers benefit from Moore's dividend, researchers in programming techniques, tools and languages have been exploring several venues. A dominant theme is the design and implementation of parallel algorithms. Several programming models have been proposed, but none at the moment seem to be substantially better than others. While general parallel programming is a distinctively challenging task, we believe that scientific computation algorithms display algebraic structures, thanks to the rich mathematical objects they manipulate. The present work aims at exploring the extent to which algebraic properties displayed by computer algebra algorithms may be automatically exploited to take advantage of parallelism in the OpenAxiom scientific computation platform. We designed a runtime system that exploits the ubiquitous parallelism of modern CPUs; the system is also scaled to many-system clusters. By taking advantage of the existing InputForm domain in OpenAxiom and connecting of the standard input channel to sockets, we were able to minimize potentially hazardous modifications to the OpenAxiom source while still implementing desired functionality. Additionally, we designed and implemented FFI extensions to the OpenAxiom core to take advantage of SIMD instructions, particularly SSE2 (SIMD Streaming Extensions). The extension allowed us to nearly double the speed of common operations such as multiplying arrays of doubles. We also defined and implemented a foreign function interface for the OpenAxiom system. All of these additions were benchmarked using Berlekamp's algorithm for factorization of polynomials over integers. While much still remains to be done in parallelizing the algebra to work over many calculation nodes, mathematical annotations remain viable in unloading the burden of parallelizing code from the programmer by substituting a simpler activity.
Mai, Stefan
Bibliographies AI
... Also, limited system run-time during mild weather was identified as a limitation of ... the buoyancy effect, the school was equipped with a solar chimney ...
Algorithmic support for commodity-based parallel computing systems.
The Computational Plant or Cplant is a commodity-based distributed-memory supercomputer under development at Sandia National Laboratories. Distributed-memory supercomputers run many parallel programs simultaneously. Users submit their programs to a job queue. When a job is scheduled to run, it is assigned to a set of available processors. Job runtime depends not only on the number of processors but also on the particular set of processors assigned to it. Jobs should be allocated to localized clusters of processors to minimize communication costs and to avoid bandwidth contention caused by overlapping jobs. This report introduces new allocation strategies and performance metrics based on space-filling curves and one dimensional allocation strategies. These algorithms are general and simple. Preliminary simulations and Cplant experiments indicate that both space-filling curves and one-dimensional packing improve processor locality compared to the sorted free list strategy previously used on Cplant. These new allocation strategies are implemented in Release 2.0 of the Cplant System Software that was phased into the Cplant systems at Sandia by May 2002. Experimental results then demonstrated that the average number of communication hops between the processors allocated to a job strongly correlates with the job's completion time. This report also gives processor-allocation algorithms for minimizing the average number of communication hops between the assigned processors for grid architectures. The associated clustering problem is as follows: Given n points in {Re}d, find k points that minimize their average pairwise L{sub 1} distance. Exact and approximate algorithms are given for these optimization problems. One of these algorithms has been implemented on Cplant and will be included in Cplant System Software, Version 2.1, to be released. In more preliminary work, we suggest improvements to the scheduler separate from the allocator.
Leung, Vitus Joseph; Bender, Michael A. (State University of New York, Stony Brook, NY); Bunde, David P. (University of Illinois, Urbna, IL); Phillips, Cynthia Ann
Monitoring and Evaluation of Smolt Migration in the Columbia Basin : Volume IX : Evaluation of the 2001 Predictions of the Run-Timing of Wild and Hatchery-Reared Migrant Salmon and Steelhead Trout Migrating to Lower Granite, Rock Island, McNary, and John Day Dams using Program RealTime.
Program RealTime provided tracking and forecasting of the 2001 inseason outmigration via the internet for eighteen PIT-tagged stocks of wild salmon and steelhead to Lower Granite and/or McNary dams and eleven passage-indexed stocks to Rock Island, McNary, or John Day dams. Nine of the PIT-tagged stocks tracked this year were new to the project. Thirteen ESUs of wild subyearling and yearling chinook salmon and steelhead, and one ESU of hatchery-reared sockeye salmon were tracked and forecasted to Lower Granite Dam. Eight wild ESUs of subyearling and yearling chinook salmon, sockeye salmon and steelhead were tracked to McNary Dam for the first time this year. Wild PIT-tagged ESUs tracked to Lower Granite Dam included yearling spring/summer chinook salmon release-recovery stocks (from Bear Valley Creek, Catherine Creek, Herd Creek, Imnaha River, Johnson Creek, Lostine River, Minam River, South Fork Salmon River, Secesh River, and Valley Creek), PIT-tagged wild runs-at-large of yearling chinook salmon and steelhead, and a PIT-tagged stock of subyearling fall chinook salmon. The stock of hatchery-reared PIT-tagged summer-run sockeye salmon smolts outmigrating to Lower Granite Dam, consisted this year of a new stock of fish from Alturas Lake Creek, Redfish Lake Creek Trap and Sawtooth Trap. The passage-indexed stocks, counted using FPC passage indices, included combined wild- and hatchery-reared runs-at-large of subyearling and yearling chinook, coho, and sockeye salmon, and steelhead migrating to Rock Island and McNary dams, and, new this year, combined wild and hatchery subyearling chinook salmon to John Day Dam. Unusual run-timing and fish passage characteristics were observed in this low-flow, negligible-spill migration year. The period for the middle 80% of fish passage (i.e., progress from the 10th to the 90th percentiles) was unusually short for nine out of ten PIT-tagged yearling spring/summer chinook salmon stocks tracked to Lower Granite Dam. It was the shortest on record for seven of these ten stocks. The nine stocks recording unusually short middle 80% periods also recorded higher-than-average recovery percentages. However the opposite trend was observed for the PIT-tagged wild subyearling chinook salmon and hatchery sockeye salmon stocks whose middle 80% period of passage to Lower Granite Dam was average to above average. Recovery percentages for these two stocks were average, compared to historical recoveries. The performance results of Program RealTime to make accurate predictions of percentiles of fish passage at an index site were mixed this year. The release-recovery stocks of wild PIT-tagged spring/summer chinook salmon tracked to Lower Granite Dam were predicted less accurately than usual, on average, with two exceptions. One of these exceptions was a stock that had its best prediction (first-half, last-half, and season-wide) ever to occur. On average, however, performance was down for predicting these stocks. The RealTime Select composite season-wide MAD was 4.3%, larger than the historical average of 2.1%. Passage percentiles for PIT-tagged runs-at-large of wild Snake River yearling and subyearling chinook salmon and of wild steelhead outmigrating to Lower Granite Dam were predicted very well this year, their second year of inclusion in the project, with season-wide MADs of 3.6%, 4.7%, and 1.8% respectively. These results, too, were mixed with respect to comparison with last year's performance. The yearling chinook stock was predicted somewhat better last year (up from 1.7% last year to 3.6% this year) but the subyearling chinook salmon and steelhead stocks were predicted better this year than last, season-wide. The steelhead stock, in particular, was predicted much better this year than last year, down to 1.8% this year from 4.8% last year. The PIT-tagged runs-at-large of wild salmon and steelhead tracked to McNary Dam in 2001 for the first time, were also well-predicted. In particular, the Snake River stocks were well-predicted, with season-wide MADs of 4.7% for subyearling chinook salmon, 3.3% for year
Burgess, Caitlin; Skalski, John R.
Award ER25750: Coordinated Infrastructure for Fault Tolerance Systems Indiana University Final Report
The main purpose of the Coordinated Infrastructure for Fault Tolerance in Systems initiative has been to conduct research with a goal of providing end-to-end fault tolerance on a systemwide basis for applications and other system software. While fault tolerance has been an integral part of most high-performance computing (HPC) system software developed over the past decade, it has been treated mostly as a collection of isolated stovepipes. Visibility and response to faults has typically been limited to the particular hardware and software subsystems in which they are initially observed. Little fault information is shared across subsystems, allowing little flexibility or control on a system-wide basis, making it practically impossible to provide cohesive end-to-end fault tolerance in support of scientific applications. As an example, consider faults such as communication link failures that can be seen by a network library but are not directly visible to the job scheduler, or consider faults related to node failures that can be detected by system monitoring software but are not inherently visible to the resource manager. If information about such faults could be shared by the network libraries or monitoring software, then other system software, such as a resource manager or job scheduler, could ensure that failed nodes or failed network links were excluded from further job allocations and that further diagnosis could be performed. As a founding member and one of the lead developers of the Open MPI project, our efforts over the course of this project have been focused on making Open MPI more robust to failures by supporting various fault tolerance techniques, and using fault information exchange and coordination between MPI and the HPC system software stack?from the application, numeric libraries, and programming language runtime to other common system components such as jobs schedulers, resource managers, and monitoring tools.
Lumsdaine, Andrew
How to efficiently implement dynamic circuit specialization systems
Dynamic circuit specialization (DCS) is a technique used to implement FPGA applications where some of the input data, called parameters, change slowly compared to other inputs. Each time the parameter values change, the FPGA is reconfigured by a configuration ... Keywords: Boolean Network evaluation, FPGA, dynamic circuit specialization, runtime reconfiguration
Fatma Abouelella; Tom Davidson; Wim Meeus; Karel Bruneel; Dirk Stroobandt
PMPS(3): a performance model of parallel systems
In this paper, an open performance model framework PMPS(n) and a realization of this framework PMPS(3), including memory, I/O and network, are presented and used to predict runtime of NPB benchmarks on P4 cluster. The experimental results demonstrates ... Keywords: I/O, convolution methods, parallel, performance model
Chen Yong-ran; Qi Xing-yun; Qian Yue; Dou Wen-hua
A Structural View of the Cedar Programming Environment
activities include experimental pro- gramming and the development of prototype software systems for a high the novel system features of Cedar, including automatic storage management of dynamically allocated typed values, a run-time type system that provides run-time access to Cedar data type definitions and allows
van der Hoek, André
Performance evaluation of a dynamic load-balancing library for cluster computing
The performance of scientific applications in heterogeneous environments has been improved with the research advances in dynamic scheduling at application and runtime system levels. This paper presents the performance evaluation of a library as a result ... Keywords: cluster computing, data migration, dynamic load balancing library, dynamic scheduling, loop scheduling, overhead analysis, parallel computing, parallel runtime system, performance evaluation, resource management, task migration
Ioana Banicescu; Ricolindo L. Carino; Jaderick P. Pabico; Mahadevan Balasubramaniam
NETL: Gasification Systems - Feed Systems
Feed Systems Gasification Systems Feed Systems Research on commercial gasifier feed systems is occurring in two primary areas of fuel (i.e. coal, biomass, etc.) feed and advanced...
Optimizing large-scale Semi-Na�ve datalog evaluation in hadoop
We explore the design and implementation of a scalable Datalog system using Hadoop as the underlying runtime system. Observing that several successful projects provide a relational algebra-based programming interface to Hadoop, we argue that a natural ...
Marianne Shaw; Paraschos Koutris; Bill Howe; Dan Suciu
Fuel Cell Technologies Office: Early Market Applications for...
fuel cells can offer significant cost savings over both battery-generator systems and battery-only systems when shorter runtime capabilities of up to 72 hours are sufficient...
Overview ZeptoOS logo ZeptoOS is a research project studying operating systems for petascale architectures with 10,000 to 1 million CPUs. Operating systems and run-time software...
Photovoltaic system in system LABI
There is prepared a new model marked as DE10 to extens the system LABI. It is a photovoltaic system. Utilizing of model is into the field of university studying and as a pilot test system for all extern experts. A special parts of model are measurement ... Keywords: automation, measurement, photovoltaic system, sun energy
Hruska Frantisek
Alchemi: A .NET-based Enterprise Grid Computing System Akshay Luther, Rajkumar Buyya, Rajiv Ranjan, and Srikumar Venugopal
. In this paper we present Alchemi1 , a .NET- based framework that provides the runtime machinery and programming application composition by supporting an object-oriented application programming model in addition to a file execution (via .NET Remoting [4] and web services [22]), multithreading, security, asynchronous programming
Buyya, Rajkumar
File Systems
File Systems File Systems File Systems For a general description of the different file systems available on PDSF please see Eliza File Systems and Other File Systems. Below is a summary of how STAR uses the various systems: /common The STAR software is installed on /common. For 32sl44 it is under /common/star/star44 and for sl53 it is under /common/star/star53. In both cases the software consists primarily of a STAR-specific ROOT installation on which releases of the STAR libraries are built as shown on the Local STAR Libraries page. /eliza3, /eliza6, /eliza9, /eliza14, /eliza15, /eliza17 STAR has space on 6 elizas as shown in the table below. File System star space (TB) use eliza3 39 production eliza6 9 production eliza9 39 production eliza14 34 production, user space under /eliza14/star/pwg
IRIS & IDEA Software
IRIS & IDEA Software. IRIS - Immersive Runtime Interpreted Scenegraph. IRIS, the Interpreted Runtime Immersive Scenegraph ...
Gasification Systems Projects & Performers
Gasification Systems Gasification Systems Projects & Performers Gasification Systems - Key Technologies Feed Systems Gasifier Optimization and Plant Supporting Systems Syngas...
System Effectiveness
An effective risk assessment system is needed to address the threat posed by an active or passive insider who, acting alone or in collusion, could attempt diversion or theft of nuclear material. It is critical that a nuclear facility conduct a thorough self-assessment of the material protection, control, and accountability (MPC&A) system to evaluate system effectiveness. Self-assessment involves vulnerability analysis and performance testing of the MPC&A system. The process should lead to confirmation that mitigating features of the system effectively minimize the threat, or it could lead to the conclusion that system improvements or upgrades are necessary to achieve acceptable protection against the threat. Analysis of the MPC&A system is necessary to understand the limits and vulnerabilities of the system to internal threats. Self-assessment helps the facility be prepared to respond to internal threats and reduce the risk of theft or diversion of nuclear material. MSET is a self-assessment or inspection tool utilizing probabilistic risk assessment (PRA) methodology to calculate the system effectiveness of a nuclear facility's MPC&A system. MSET analyzes the effectiveness of an MPC&A system based on defined performance metrics for MPC&A functions based on U.S. and international best practices and regulations. A facility's MC&A system can be evaluated at a point in time and reevaluated after upgrades are implemented or after other system changes occur. The total system or specific subareas within the system can be evaluated. Areas of potential performance improvement or system upgrade can be assessed to determine where the most beneficial and cost-effective improvements should be made. Analyses of risk importance factors show that sustainability is essential for optimal performance. The analyses reveal where performance degradation has the greatest detrimental impact on total system risk and where performance improvements have the greatest reduction in system risk. The risk importance factors show the amount of risk reduction achievable with potential upgrades and the amount of risk reduction actually achieved after upgrades are completed. Applying the risk assessment tool gives support to budget prioritization by showing where budget support levels must be sustained for MC&A functions most important to risk. Results of the risk assessment are also useful in supporting funding justifications for system improvements that significantly reduce system risk.
Powell, Danny H [ORNL; Elwood Jr, Robert H [ORNL
Advanced Systems
Advanced Systems: Advanced Systems: high Performance fenestration systems Research areas: Research activities to improve the performance of windows and other fenestration products must address window systems issues as well as Glazing Materials research. LBNL activities in the area of Advanced Systems include research at both the product level and the building envelope and building systems levels. Highly insulating windows - using non structural center layers Lower cost solutions to more insulating three layer glazing systems, with the potential to turn windows in U.S. heating dominated residential applications into net-energy gainers. Highly Insulating Window Frames In collaboration with the Norwegian University of Science and Technology, we are researching the potentials for highly insulating window frames. Our initial work examines European frames with reported U-factors under 0.15 Btu/hr-ft2-F. Future research aims to analyze these designs, verify these performance levels and ensure that procedures used to calculate frame performance are accurate.
Efficient power modeling and software thermal sensing for runtime temperature monitoring
The evolution of microprocessors has been hindered by increasing power consumption and heat dissipation on die. An excessive amount of heat creates reliability problems, reduces the lifetime of a processor, and elevates the cost of cooling and packaging ... Keywords: Power, thermal
Wei Wu; Lingling Jin; Jun Yang; Pu Liu; Sheldon X.-D. Tan
Communication library for run-time visualization of distributed, asynchronous data
In this paper we present a method for collecting and visualizing data generated by a parallel computational simulation during run time. Data distributed across multiple processes is sent across parallel communication lines to a remote workstation, which sorts and queues the data for visualization. We have implemented our method in a set of tools called PORTAL (for Parallel aRchitecture data-TrAnsfer Library). The tools comprise generic routines for sending data from a parallel program (callable from either C or FORTRAN), a semi-parallel communication scheme currently built upon Unix Sockets, and a real-time connection to the scientific visualization program AVS. Our method is most valuable when used to examine large datasets that can be efficiently generated and do not need to be stored on disk. The PORTAL source libraries, detailed documentation, and a working example can be obtained by anonymous ftp from info.mcs.anl.gov from the file portal.tar.Z from the directory pub/portal.
Rowlan, J. [Argonne National Lab., IL (United States); Wightman, B.T. [Wisconsin Univ., Oshkosh, WI (United States)
Modelling and decentralised runtime control of self-stabilising power micro grids
Electric power production infrastructures around the globe are shifting from centralised, controllable production to decentralised structures based on distributed microgeneration. As the share of renewable energy sources such as wind and solar power ...
Arnd Hartmanns; Holger Hermanns
Run-Time Power-Down Strategies for Real-Time SDRAM Memory Controllers
. PDTRANS PUP Figure 1: Power-Down Transitions 3.3 Arbiters and Latency-Rate Servers Real-time SDRAM memory on the memory state and the power- down duration, for both the power-down strategies. We experimentally evaluate, the tTRANS parameter gives the transition in timing constraint before the memory can switch to a power
Epema, Dick H.J.
Data parallel execution challenges and runtime performance of agent simulations on GPUs
Programmable graphics processing units (GPUs) have emerged as excellent computational platforms for certain general-purpose applications. The data parallel execution capabilities of GPUs specifically point to the potential for effective use in simulations ... Keywords: agent-based simulation, emergent behavior, graphical processing units, large-scale simulation, parallel simulation
Kalyan S. Perumalla; Brandon G. Aaby
Evaluation of the 1998 Predictions of the Run-Timing of Wild Migrant Yearling Chinook
.S. Army Corps of Engineers, electrical power demand forecasts, and other criteria. The substantial electrical load to be met by all generating projects in the region, the Snake projects could be operated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1: Flow and Spill Forecasts
Washington at Seattle, University of
Rhizoma: a runtime for self-deploying, self-managing overlays
The trend towards cloud and utility computing infrastructures raises challenges not only for application development, but also for management: diverse resources, changing resource availability, and differing application requirements create a complex ...
Qin Yin; Adrian Sch�pbach; Justin Cappos; Andrew Baumann; Timothy Roscoe
V-172: ISC BIND RUNTIME_CHECK Error Lets Remote Users Deny Service...
Addthis Related Articles U-038: BIND 9 Resolver crashes after logging an error in query.c U-039: ISC Update: BIND 9 Resolver crashes after logging an error in query.c T-662:...
The benefits and costs of DyC's run-time optimizations
DyC selectively dynamically compiles programs during their execution, utilizing the run-time-computed values of variables and data structures to apply optimizations that are based on partial evaluation. The dynamic optimizations are preplanned at static ... Keywords: dynamic compilation, specialization
Brian Grant; Markus Mock; Matthai Philipose; Craig Chambers; Susan J. Eggers
JavaCloak - Considering the Limitations of Proxies for Facilitating Java Runtime Specialisation.
Renaud,K.V. Annual Conference of the South African Institute of Computer Scientists and Information Technologists. SAICSIT'2001. Pretoria, South Africa. 25-28 September 2001. University of South Africa
Renaud, K.V.
A collaborative framework for evaluation of run-time changes in enterprise web services
Increasing market demand and technology in today's world has made change management an inevitable one. To remain competitive, organizations must be able to respond to change in a timely and cost effective manner. Although there are many change management ... Keywords: dependency analysis, enterprise business scenario, similarity measure, web services change management
M. Thirumaran; P. Dhavachelvan; G. Naga Venkata Kiran
Centralized Run-Time Resource Management in a Network-on-Chip Containing Reconfigurable Hardware Tiles
Science University British Columbia Vancouver, V6T Canada {swyang,firstname.lastname@example.com Abstract. This paper is abstract. Hopefully, won't abstract time submit Introduction Fig. Synchronous Pipeline Stage Surfing Figure 1 shows typical synchronous pipeline stage. For proper operation, clock period must longer than
Component Assemblies and Component Runtimes Yu David Liu Ran Rinat Scott F. Smith
the cable analogy, cells are also designed to allow "hot-plugging", cables that may be connected invocation between connected cells, and full distributed functionality, including formation of remote cell different ways of handling parameters de- pending on inter-cell communication and intra-cell commu- nication
Smith, Scott F.
High Performance Adaptive Distributed Scheduling Algorithm
Exascale computing requires complex runtime systems that need to consider affinity, load balancing and low time and message complexity for scheduling massive scale parallel computations. Simultaneous consideration of these objectives makes online distributed ... Keywords: Distributed Scheduling, Adaptive Scheduling, Performance Analysis
Ankur Narang, Abhinav Srivastava, R. K. Shyamasundar
RXIO: Design and implementation of high performance RDMA-capable GridFTP
For its low-latency, high bandwidth, and low CPU utilization, Remote Direct Memory Access (RDMA) has established itself as an effective data movement technology in many networking environments. However, the transport protocols of grid run-time systems, ...
Yuan Tian; Weikuan Yu; Jeffrey S. Vetter
Understanding POWER multiprocessors
Exploiting today's multiprocessors requires high-performance and correct concurrent systems code (optimising compilers, language runtimes, OS kernels, etc.), which in turn requires a good understanding of the observable processor behaviour that can be ... Keywords: relaxed memory models, semantics
Susmit Sarkar; Peter Sewell; Jade Alglave; Luc Maranget; Derek Williams
A scalability benchmark suite for Erlang/OTP
Programming language implementers rely heavily on benchmarking for measuring and understanding performance of algorithms, architectural designs, and trade-offs between alternative implementations of compilers, runtime systems, and virtual machine components. ... Keywords: benchmarking, erlang, multicore, scalability
Stavros Aronis; Nikolaos Papaspyrou; Katerina Roukounaki; Konstantinos Sagonas; Yiannis Tsiouris; Ioannis E. Venetis
Specification-enhanced execution
Our goal is to provide a framework that allows the programmer to easily shift responsibility for certain aspects of the program execution to the runtime system. We present specification- enhanced execution, a programming ...
Yang, Jean, S.M. Massachusetts Institute of Technology
Proceedings of the ACM/IFIP/USENIX 2007 International Conference on Middleware
Nowadays, middleware technologies are the main infrastructure to support the development and execution of distributed systems, providing design abstractions, programming models and tools, frameworks, protocols, deployment mechanisms, and runtime services. ...
Nalini Venkatasubramanian; Roy H. Campbell; Renato Cerqueira
Logic-based Conflict Detection for Distributed Policies
Policies are used to describe rules that are employed to modify (often distributed) system behaviour at runtime. Typically policies are created by many different people and there are many policies leading naturally to inconsistency between the policies, ...
Carlo Montangero; Stephan Reiff-Marganiec; Laura Semini
A performance model for fine-grain accesses in UPC
UPC's implicit communication and fine-grain programming style make application performance modeling a challenging task. The correspondence between remote references and communication events depends on the internals of the compiler and runtime system. ...
Zhang Zhang; Steven R. Seidel
Highly scalable distributed dataflow analysis
Dynamic dataflow analyses find software errors by tracking meta-values associated with a program's runtime data. Despite their benefits, the orders-of-magnitude slowdowns that accompany these systems limit their use to the development stage; few users ...
Joseph L. Greathouse; Chelsea LeBlanc; Todd Austin; Valeria Bertacco
System ARW Solver · Equations: Fully compressible, Euler nonhydrostatic with a run-time hydrostatic the compressible, nonhydrostatic Euler equations. The equations are cast in flux form using variables that have
Zhang, Yan
Dynamic Memory Optimization using Pool Allocation and Prefetching
Heap memory allocation plays an important role in modern applications. Conventional heap allocators, however, generally ignore the underlying memory hierarchy of the system, favoring instead a low runtime overhead and fast ...
Zhao, Qin
AEP Systems
... Avoid costs of retrofitting systems to support secure access �Produced by the Yankee Group http://www.yankeegroup.com Page 25. ...
NETL: Gasification Systems
Gasification Systems Coal and Power Systems Gasification Systems Gasifier Optimization & Plant Supporting Systems Feed Systems Feed Systems Gasifier Optimization & Plant Supporting...
A Partitioning Approach for Parallel Simulation of AC-Radial Shipboard Power Systems
An approach to parallelize the simulation of AC-Radial Shipboard Power Systems (SPSs) using multicore computers is presented. Time domain simulations of SPSs are notoriously slow, due principally to the number of components, and the time-variance of the component models. A common approach to reduce the simulation run-time of power systems is to formulate the electrical network equations using modified nodal analysis, use Bergeron's travelling-wave transmission line model to create subsystems, and to parallelize the simulation using a distributed computer. In this work, an SPS was formulated using loop analysis, defining the subsystems using a diakoptics-based approach, and the simulation parallelized using a multicore computer. A program was developed in C# to conduct multithreaded parallel-sequential simulations of an SPS. The program first represents an SPS as a graph, and then partitions the graph. Each graph partition represents a SPS subsystem and is computationally balanced using iterative refinement heuristics. Once balanced subsystems are obtained, each SPS subsystem's electrical network equations are formulated using loop analysis. Each SPS subsystem is solved using a unique thread, and each thread is manually assigned to a core of a multicore computer. To validate the partitioning approach, performance metrics were created to assess the speed gain and accuracy of the partitioned SPS simulations. The simulation parameters swept for the performance metrics were the number of partitions, the number of cores used, and the time step increment. The results of the performance metrics showed adequate speed gains with negligible error. An increasing simulation speed gain was observed when the number of partitions and cores were augmented, obtaining maximum speed gains of <30x when using a quadcore computer. Results show that the speed gain is more sensitive to the number partitions than is to the number of cores. While multicore computers are suitable for parallel-sequential SPS simulations, increasing the number of cores does not contribute to the gain in speed as much as does partitioning. The simulation error increased with the simulation time step but did not influence the partitioned simulation results. The number of operations caused by protective devices was used to determine whether the simulation error introduced by partitioning SPS simulations produced a inconsistent system behavior. It is shown, for the time step sizes uses, that protective devices did not operate inadvertently, which indicates that the errors did not alter RMS measurement and, hence, were non-influential.
Uriarte, Fabian Marcel
Power system
DOE Patents (OSTI)
A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.
Hickam, Christopher Dale (Glasford, IL)
Type systems
The study of type systems has emerged as one of the most active areas of research in programming languages, with applications in software engineering, language design, high-performance compiler implementation, and security. This chapter discusses the ...
Benjamin C. Pierce
Battery system
A battery module includes a plurality of battery cells and a system configured for passing a fluid past at least a portion of the plurality of battery cells in a parallel manner.
Dougherty, Thomas J; Wood, Steven J; Trester, Dale B; Andrew, Michael G
Photovoltaic Systems
A photovoltaic (PV), or solar electric system, is made up of several photovoltaic solar cells. An individual PV cell is usually small, typically producing about 1 or 2 watts of power. To boost the...
Gasification Systems
GASIFICATION SYSTEMS U.S. DEPARTMENT OF ENERGY TECHNOLOGY PROGRAM PLAN PREFACE ii DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United...
NETL: Gasification - Systems Analyses
System Analyses Gasification Systems Systems Analyses Go to the NETL Gasification Systems Program's Systems and Industry Analyses Studies Technology & CostPerformance Studies NETL...
Systems Studies
The Systems Studies Activity had two objectives: (1) to investigate nontechnical barriers to the deployment of biomass production and supply systems and (2) to enhance and extend existing systems models of bioenergy supply and use. For the first objective, the Activity focused on existing bioenergy markets. Four projects were undertaken: a comparative analysis of bioenergy in Sweden and Austria; a one-day workshop on nontechnical barriers jointly supported by the Production Systems Activity; the development and testing of a framework for analyzing barriers and drivers to bioenergy markets; and surveys of wood pellet users in Sweden, Austria and the US. For the second objective, two projects were undertaken. First, the Activity worked with the Integrated BioEnergy Systems (TBS) Activity of TEA Bioenergy Task XIII to enhance the BioEnergy Assessment Model (BEAM). This model is documented in the final report of the IBS Activity. The Systems Studies Activity contributed to enhancing the feedstock portion of the model by developing a coherent set of willow, poplar, and switchgrass production modules relevant to both the US and the UK. The Activity also developed a pretreatment module for switchgrass. Second, the Activity sponsored a three-day workshop on modeling bioenergy systems with the objectives of providing an overview of the types of models used to evaluate bioenergy and promoting communication among bioenergy modelers. There were nine guest speakers addressing different types of models used to evaluate different aspects of bioenergy, ranging from technoeconomic models based on the ASPEN software to linear programming models to develop feedstock supply curves for the US. The papers from this workshop have been submitted to Biomass and Bioenergy and are under editorial review.
Graham, R.L.
ARAC system
In spite of the remarkable safety record of the nuclear industry as a whole, recent public concern over the potential impact of the industry's accelerated growth has prompted ERDA to expand its emergency response procedures. The Atmospheric Release Advisory Capability, ARAC, is a computer communications system designed to enhance the existing emergency response capability of ERDA nuclear facilities. ARAC will add at least two new functions to this capability: centralized, real-time data acquisition and storage, and simulation of the long range atmospheric transport of hazardous materials. To perform these functions, ARAC employs four major sub-systems or facilities: the site facility, the central facility, the global weather center and the regional model. The system has been under development for the past two years at the Lawrence Livermore Laboratory of the University of California. (auth)
Kelly, M.F.; Wyman, R.H.
Natural System
Natural System Natural System Evaluation and Tool Development - FY11 Progress Report Prepared for U.S. Department of Energy Used Fuel Disposition Program Yifeng Wang (SNL) Michael Simpson (INL) Scott Painter (LANL) Hui-Hai Liu (LBNL) Annie B. Kersting (LLNL) July 15, 2011 FCRD-USED-2011-000223 UFD Natural System Evaluation - FY11 Year-End Report July 15, 2011 2 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe
Lighting Systems
Purple LED lamp Purple LED lamp Lighting Systems Lighting research is aimed at improving the energy efficiency of lighting systems in buildings and homes across the nation. The goal is to reduce lighting energy consumption by 50% over twenty years by improving the efficiency of light sources, and controlling and delivering illumination so that it is available, where and when needed, and at the required intensity. Research falls into four main areas: Sources and Ballasts, Light Distribution Systems, Controls and Communications, and Human Factors. Contacts Francis Rubinstein firstname.lastname@example.com (510) 486-4096 Links Lighting Research Group Batteries and Fuel Cells Buildings Energy Efficiency Applications Commercial Buildings Cool Roofs and Heat Islands Demand Response Energy Efficiency Program and Market Trends
BAE Systems
Information fusion system designs require sensor and resource management (SM) for effective and efficient data collection, processing, and dissemination. Common Level 4 fusion sensor management (or process refinement) inter-relations with target tracking and identification (Level 1 fusion) have been detailed in the literature. At the ISIF Fusion Conference, a panel discussion was held to examine the contemporary issues and challenges pertaining to the interaction between SM and situation and threat assessment (Level 2/3 fusion). This summarizes the key tenants of the invited panel experts. The common themes were: 1) Addressing the user in system control, 2) Determining a standard set of metrics,
Erik Blasch; John Salerno; Ivan Kadar; Ken Hintz; J. Biermann; Chee Chong; Subrata Das
Investigating Army systems and Systems of Systems for value robustness
This thesis proposes a value robustness approach to architect defense systems and Systems of Systems (SoS). A value robust system or SoS has the ability to provide continued value to stakeholders by performing well to meet ...
Koo, Kevin C. K. (Kevin Cheng Keong)
NREL: Energy Systems Integration - Energy Systems Integration...
Energy Systems Integration Facility NREL's Energy Systems Integration Facility Garners LEED Platinum View the NREL Press Release. NREL's multistory Energy Systems Integration...
GASIFICATION SYSTEMS GASIFICATION SYSTEMS U.S. DEPARTMENT OF ENERGY TECHNOLOGY PROGRAM PLAN PREFACE ii DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any
Burner systems
A burner system particularly useful for downhole deployment includes a tubular combustion chamber unit housed within a tubular coolant jacket assembly. The combustion chamber unit includes a monolithic tube of refractory material whose inner surface defines the combustion zone. A metal reinforcing sleeve surrounds and extends the length of the refractory tube. The inner surface of the coolant jacket assembly and outer surface of the combustion chamber unit are dimensioned so that those surfaces are close to one another in standby condition so that the combustion chamber unit has limited freedom to expand with that expansion being stabilized by the coolant jacket assembly so that compression forces in the refractory tube do not exceed about one-half the safe compressive stress of the material; and the materials of the combustion chamber unit are selected to establish thermal gradient parameters across the combustion chamber unit to maintain the refractory tube in compression during combustion system start up and cool down sequences.
Doherty, Brian J. (Marblehead, MA)
A boiling water type nuclear reactor power system having improved means of control is described. These means include provisions for either heating the coolant-moderator prior to entry into the reactor or shunting the coolantmoderator around the heating means in response to the demand from the heat engine. These provisions are in addition to means for withdrawing the control rods from the reactor. (AEC)
Shannon, R.H.; Williamson, H.E.
Gasification system
A method and system for injecting coal and process fluids into a fluidized bed gasification reactor. Three concentric tubes extend vertically upward into the fluidized bed. Coal particulates in a transport gas are injected through an inner tube, and an oxygen rich mixture of oxygen and steam are injected through an inner annulus about the inner tube. A gaseous medium relatively lean in oxygen content, such as steam, is injected through an annulus surrounding the inner annulus.
Haldipur, Gaurang B. (Hempfield, PA); Anderson, Richard G. (Penn Hills, PA); Cherish, Peter (Bethel Park, PA)
Optimal gap width for double and triple glazing systems Optimal gap width for double and triple glazing systems Glazing systems in the US are commonly designed with a 1/2 " (12.7 mm) gap. The optimal gap width depends on many factors, such as gas fill (air, argon, krypton), the use of Low-e coatings, the environmental conditions (temperature difference across the window), and the calculation standard used. NFRC standard conditions are -18 C (-0.4 F) outside, and 21 C (69.8 F) inside. The calculation standard used in the US is based on the ISO 15099 standard. European standard conditions are 0 C (32 F) outside, and 20 C (68 F) inside. The calculation standard is based on the EN 673 standard. A number of common glazing configurations both with and without Low-e coatings, and with a variety of gas fills were evaluated using both the North American NFRC standard and the European EN 673 standard. All results were calculated using WINDOW 6.3 from LBNL. All IGU's (Insulated Glazing Units) have a standard height of 1 meter.
Braking system
A balanced braking system comprising a plurality of braking assemblies located about a member to be braked. Each of the braking assemblies consists of a spring biased piston of a first material fitted into a body of a different material which has a greater contraction upon cooling than the piston material. The piston is provided with a recessed head portion over which is positioned a diaphragm and forming a space therebetween to which is connected a pressurized fluid supply. The diaphragm is controlled by the fluid in the space to contact or withdraw from the member to be braked. A cooling means causes the body within which the piston is fitted to contract more than the piston, producing a tight shrink fit therebetween. The braking system is particularly applicable for selectively braking an arbor of an electron microscope which immobilizes, for example, a vertically adjustable low temperature specimen holder during observation. The system provides balanced braking forces which can be easily removed and re-established with minimal disturbance to arbor location.
Norgren, D.U.
Integrated System
Integrated Window System Our research activities in the field of high performance windows have led us to conclude that even by using high performance insulating glass units, low conductivity frames, and warm edge spacers, there are still untapped sources for improving energy efficiency in the design and use of residential windows. While such high performance windows are a dramatic improvement over conventional units, they do not reduce conductive losses through wall framing around the window, offer guarantees against excessive wall/window infiltration nor do they adapt to the daily and seasonal potentials for night insulation and summer shading. To meet this need, we have been working on the design, development, and prototyping of Integrated Window Systems (IWS) since 1993. Integrated Window Systems are a form of panelized construction where the wall panel includes an operable or fixed window sash, recessed night insulation, integral solar shading, and is built in a factory setting in order to minimize thermal short circuits and infiltration at joints. IWSs can be built in modular lengths to facilitate their installation with conventional wood frame stick construction or other forms of panelized construction.
Components of systems software for parallel systems
Systems software for clusters and other parallel systems affects multiple types of users. End users interact with it to submit and interact with application jobs and to avail themselves of scalable system tools. Systems administrators interact with it ...
Ewing Lusk
Glazing Systems Glazing Systems Using Non-Structural Center Glazing Layers Windows in the United States use aproximately 2 quads a year in heating energy, approximately one third of all building space heating energy used and the largest single end use attributed to windows. Even if all existing windows were replaced with todays ENERGY STAR low-e products (U values < 0.35 Btu/hr-ft2-F), windows related heating would still be over 1 Quad. Because heating loads are strongly tied to conductive losses, technologies which lead to lower window U-factors are the key to reducing heating energy. A 0.1 Btu/hr-ft2-F window is targeted as a product, which will meet the requirements of zero-energy homes. Dynamic control of solar gains will further reduce heating needs by allowing winter solar heat gains to be effectively utilized while limiting cooling season gains. Significant cooling load savings can also be expected from lower U-factor windows in certain climates and from dynamic windows in all climates.
Environmental Management System
Video Community, Environment Environmental Stewardship Environmental Protection Environmental Management System Environmental Management System An Environmental...
Systems Infrastructure (SYS 18)
Networked Sensing Systems Infrastructure John Hicks, Karencomponents The Systems Infrastructure team assembles, tests,
Richard Guy; John Hicks; Karen Weeks
SYS 5: Systems Infrastructure
Networked Sensing Systems Infrastructure Kevin Chang, Johnnents The Systems Infrastructure team assembles, tests, and
This patent describes a battery system for use with a battery powered device. It comprises a battery pack, the battery pack including; battery cells; positive and negative terminals serially coupled to the battery cells, the positive terminal being adapted to deliver output current to a load and receive input current in the direction of charging current; circuit means coupled to the positive and negative terminals and producing at an analog output terminal an analog output signal related to the state of charge of the battery cells; and display means separate from the battery pack and the battery powered device and electrically coupled to the analog output terminal for producing a display indicating the state of charge of the battery cells in accordance with the analog output signal.
Sokira, T.J.
Transfer system
A transport system includes a traveling rail (1) which constitutes a transport route and a transport body (3) which is capable of traveling on the traveling rail in the longitudinal direction of the traveling rail. Flexible drive tubes (5) are arranged on the traveling rail in the longitudinal direction of the traveling rail. The transport body includes a traveling wheel (4) which is capable of rolling on the traveling rail and drive wheels (2) which are capable of rolling on the drive tubes upon receiving the rotational drive power generated by pressure of a pressure medium supplied to the drive tubes while depressing the drive tubes. The traveling rail includes a plurality of transport sections and the transport body is capable of receiving a rotational drive force from the drive tubes at every transport sections. If necessary, a transport route changeover switch which changes over the transport route can be provided between the transport sections.
Kurosawa, Kanji (Tokyo, JP); Koga, Bunichiro (Miyagi, JP); Ito, Hideki (Miyagi, JP); Kiriyama, Shigeru (Miyagi, JP); Higuchi, Shizuo (Kanagawa, JP)
Energy Systems Integration Facility Newsroom The Energy Systems Integration Facility (ESIF) will be one of the only megawatt-scale test facilities in the United States that...
Minimal fusion systems.
??We define minimal fusion systems in a way that every non-solvable fusion system has a section which is minimal. Minimal fusion systems can also be� (more)
Henke, Ellen
Laser Music System.
?? A Laser Music System has been created, that combines a laser and light sensor system with an infrared distance sensing system that detects the� (more)
Woodruff, Astra
NERSC Computational Systems
My NERSC Getting Started Computational Systems Edison Hopper Carver Dirac PDSF Genepool Testbeds Retired Systems Data & File Systems Network Connections Queues and Scheduling Job...
TRANSPORTATION SYSTEMS Transportation systems are the building
TRANSPORTATION SYSTEMS Transportation systems are the building blocks of modern society. Efficient mobility improves the quality of life. However, transportation systems by their very nature also affect quality. The transportation systems graduate pro- gram provides in-depth knowledge on the design
Wang, Yuhang
Communication Systems Chair of Communication Systems
, porn sites, web services, ... :-)) #12;8 | 28 Communication Systems network insecurity Inner and intra
Schindelhauer, Christian
Complex System Classification
The use of terms such as �Engineering Systems�, �System of systems� and others have been coming into greater use over the past decade to denote systems of importance but with implied higher complexity than for the term ...
Magee, Christopher
Complex Systems Program Homepage
... Systems Program seeks to understand the fundamental science of these ... Complex Systems Fundamentals Roldan Pozo; Measurement Science for ...
Environmental Management Systems
Environmental Management Systems Technical Assistance Tools Technical Assistance Tool: Integrating Sustainable Practices into Environmental Management Systems , November 2009...
Public Safety Communication Systems
... integrate legacy communication and information systems and ... will support system analysis and troubleshooting ... create a global market for equipment ...
Systems Engineering Group
... advances, and deploys measurement science to address application of engineering information systems to complex cyber-physical systems. ...
Networked Control Systems Group
... and deploys measurement science for sensor networks and control systems used in manufacturing, construction, and other cyber-physical systems ...
Systems Integration Division Homepage
... systems integration and engineering, life cycle assessment, cyber-physical systems, productivity measurement, sustainability and energy efficiency. ...
Brochures Gasification Systems Reference Shelf - Brochures The Gasification Technology brochures are as follows: Gasification Plant Databases (Aug 2013) Gasification Systems...
Sensors, Instrumentation Systems
Sensors, Instrumentation Systems science-innovationassetsimagesicon-science.jpg Sensors, Instrumentation Systems National security depends on science and technology. The...
System Demonstration Multilingual Weather Forecast Generation System
System Demonstration Multilingual Weather Forecast Generation System Tianfang Yao DongmoZhang Qian (Multilingual Weather Forecasts Assistant) system will be demonstrated. It is developed to generate the multilingual text of the weather forecasts automatically. The raw data from the weather observation can be used
Systems Analysis Workshop Purpose
National Renewable Energy Laboratory National Renewable Energy Laboratory DOE Hydrogen Program DOE Hydrogen Program Systems Analysis Workshop Systems Analysis Workshop Systems Integration Production Delivery Conversion Application Education Codes & Standards Safety Tech Validation Storage Systems Integration Production Delivery Conversion Application Education Codes & Standards Safety Tech Validation Storage Washington D.C. 28-29 Jul 04 Dale Gardner Systems Integration Operated for the U.S. Department of Energy by Midwest Research Institute * Battelle 2 Systems Analysis Workshop Topics * Meeting Goals * Systems Integration * Roles/Responsibilities of Analysis Participants * Systems Analysis * From this Workshop * Capability Presentations 3 Systems Analysis Workshop Meeting Goals 1) Understand the roles and activities of the DOE Technology Analyst,
Energy Systems Integration
Systems Integration Systems Integration Ben Kroposki, PhD, PE Director, Energy Systems Integration National Renewable Energy Laboratory 2 Reducing investment risk and optimizing systems in a rapidly changing energy world * Increasing penetration of variable RE in grid * Increasing ultra high energy efficiency buildings and controllable loads * New data, information, communications and controls * Electrification of transportation and alternative fuels * Integrating energy storage (stationary and mobile) and thermal storage * Interactions between electricity/thermal/fuels/data pathways * Increasing system flexibility and intelligence Current Energy Systems Future Energy Systems Why Energy Systems Integration? 3 Energy Systems Integration Continuum Scale Appliance (Plug)
Learning classifier systems
This tutorial gives an introduction to Learning Classifier Systems focusing on the Michigan-Style type and XCS in particular. The objective is to introduce (1) where LCSs come from, (2) how LCSs generally work, (3) which different systems exist, (4) ... Keywords: adaptive systems, cognitive systems, datamining, function approximation, genetic algorithms, learning classifier systems, machine learning, regression, reinforcement learning
Martin V. Butz
Evaluation of systems usability
Motivation -- Development of complex system interfaces can benefit, in addition to the traditional safety focused evaluation, also from a usability approach to evaluation of system performance. But as the users, the information system, and the ... Keywords: activity theory, complex systems, joint cognitive systems, usability evaluation
Paula Savioja; Leena Norros; Leena Salo
FORMS: a formal reference model for self-adaptation
Self-adaptive software systems are an emerging class of systems that adjust their behavior at runtime to achieve certain functional or quality of service objectives. The construction of such systems has shown to be significantly more challenging than ... Keywords: reference model, self-adaptive systems, z specification
Danny Weyns; Sam Malek; Jesper Andersson
Lighting system with thermal management system
Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system.
Arik, Mehmet; Weaver, Stanton; Stecher, Thomas; Seeley, Charles; Kuenzler, Glenn; Wolfe, Jr., Charles; Utturkar, Yogen; Sharma, Rajdeep; Prabhakaran, Satish; Icoz, Tunc
Evaluation of the 1994 Predictions of the Run-Timing of Wild Migrant Yearling Chinook in the Snake River Basin.
Since 1988, wild salmon have been PIT-tagged under programs conducted by the National Marine Fisheries Service, Idaho Department of Fish and Game, Oregon Department of Fish and Game and the U.S. Fish and Wildlife Service. The detection of tagged individuals at Lower Granite Dam provides a measure, of the temporal and spatial distribution of the wild populations. PIT Forecaster was developed to take advantage of this historical data to predict the proportion of a particular population which had arrived at the index site in real-time and to forecast elapsed time to some future percentile in a migration. This report evaluates the performance of the Least Squares (LS) method and the Synchronized historical pattern matching (SYNC) method used in the PIT Forecaster and two other possible methods of prediction reminiscent of methods recommended by the Fish Passage Center (FPC). Alternative No. 1 bases predictions on the historical proportion of PIT-Tags recovered in a specific year and Alternative No. 2 uses the historical cumulative distribution of smolt predicted of a previous season. Over the entire 1994 season, the LS method had the best prediction performance for both aggregate and individual streams. However, for the first half of the season, Alternative No. 1 was clearly a better predictor. This performance deteriorated for the last half of the season, and the LS method improved prediction for aggregate streams and for the individual streams. The algorithms used by PIT Forecaster provide a better prediction as the season progresses. For the first half of the season, Alternative No. 1 did very well for both index years selected. For the 1995 season, Alternative No. 1 will be combined with the LS method to create an improved predictor.
Townsend, Richard L.; Westhagen, P.; Yasuda, D.; Skalski, J.R.
Runtime function instrumentation with EZTrace Charles Aulagnon1, Damien Martin-Guillerez2, Francois Rue2, and
Action Intensity savings Savings at electricity rate $0.07/kWh $0.10/kWh $0.13/kWh Vampire appliances Unplug all appliances not in use (assume 20W of vampire appliances) 0.48 kWh per day $0.034 $0.048 $0 hot (50°C) to cold wash using high efficiency washer (86 litres per load)iv 2.25 kWh per load $0.16 $0
Hybrid Systems Diagnosis
This paper reports on an on-going project to investigate techniques to diagnose complex dynamical systems that are modeled as hybrid systems. In particular, we examine continuous systems with embedded supervisory controllers that experience abrupt, partial ...
Sheila A. McIlraith; Gautam Biswas; Dan Clancy; Vineet Gupta
Concentrator Photovoltaic Systems
Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the most expensive components of a PV system, on a per-area basis. A concentrator makes use...
Steam System Optimization
Most plant steam systems are complex systems. Usually the fuel required to produce the steam represents a major expense for manufacturing facilities. By properly operating and maintaining the steam system and making minor improvements, significant savings can be realized.
Aegerter, R. A.
Sustainable Energy Systems Group
Sustainable Energy Systems Group The Sustainable Energy Systems Group studies the impacts of energy generation and use, manufacturing, and other activities on the environment, the...
Data & File Systems
Data Management Policies NERSC File Systems HPSS Data Archive Optimizing IO performance on the Lustre file system IO Formats Sharing Data Transferring Data Unix Groups at NERSC...
Manufacturing Skills Certification System
... system to their business so that they utilize the skills certification system ... provide input to The Manufacturing Institute about aggregate skill needs of ...
Euclid File Systems
Request Form Euclid File Systems Euclid has 3 kinds of file systems available to users: home directories, scratch directories and project directories, all provided by the NERSC...
Underwater Glider System Study
Leonard, N. E. , �ONR Underwater Glider Systems Study GliderDavis. The Autonomous Underwater Glider Spray. IEEE Journalto the ONR Committee for Underwater Glider Systems Study,
Training Management System
Beam Time ESAF Contacts Calendars User Community Scientific Access Site AccessVisit Training Training Management System Argonne system used to track training requirements and...
Control system design method
A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.
Wilson, David G. (Tijeras, NM); Robinett, III, Rush D. (Tijeras, NM)
Umbra's system representation.
This document describes the Umbra System representation. Umbra System representation, initially developed in the spring of 2003, is implemented in Incr/Tcl using concepts borrowed from Carnegie Mellon University's Architecture Description Language (ADL) called Acme. In the spring of 2004 through January 2005, System was converted to Umbra 4, extended slightly, and adopted as the underlying software system for a variety of Umbra applications that support Complex Systems Engineering (CSE) and Complex Adaptive Systems Engineering (CASE). System is now a standard part Of Umbra 4. While Umbra 4 also includes an XML parser for System, the XML parser and Schema are not described in this document.
McDonald, Michael James
Usability for Biometric Systems
... to improve the usability of biometric systems, it is ... users will have with a system, including the hardware, software and instructional design of a ...
Jobstream Separator System Design
... any unprivileged PDP-11/45 machine instruction or invoke ... are not an inherent part of the JSS system. ... Four of the six systems are }~C, SAC, NORAD ...
In this project, an advanced computational software tool will be developed for the design of low emission combustion systems required for Vision 21 clean energy plants. This computational tool will utilize Large Eddy Simulation (LES) methods to predict the highly transient nature of turbulent combustion. The time-accurate software will capture large scale transient motion, while the small scale motion will be modeled using advanced subgrid turbulence and chemistry closures. This three-year project is composed of: Year 1--model development/implementation, Year 2--software alpha validation, and Year 3--technology transfer of software to industry including beta testing. In this first year of the project, subgrid models for turbulence and combustion are being developed through university research (Suresh Menon-Georgia Tech and J.-Y. Chen- UC Berkeley) and implemented into a leading combustion CFD code, CFD-ACE+. The commercially available CFDACE+ software utilizes unstructured , parallel architecture and 2nd-order spatial and temporal numerics. To date, the localized dynamic turbulence model and reduced chemistry models (up to 19 species) for natural gas, propane, hydrogen, syngas, and methanol have been incorporated. The Linear Eddy Model (LEM) for subgrid combustion-turbulence interaction has been developed and implementation into CFD-ACE+ has started. Ways of reducing run-time for complex stiff reactions is being studied, including the use of in situ tabulation and neural nets. Initial validation cases have been performed. CFDRC has also completed the integration of a 64 PC cluster to get highly scalable computing power needed to perform the LES calculations ({approx} 2 million cells) in several days. During the second year, further testing and validation of the LES software will be performed. Researchers at DOE-NETL are working with CFDRC to provide well-characterized high-pressure test data for model validation purposes. To insure practical, usable software is developed, a consortium of gas turbine and industrial burner manufacturers has been established to guide and direct the software development/validation effort. The consortium members include Siemens- Westinghouse, GE Power Systems, Pratt & Whitney, Rolls-Royce, Honeywell, Solar, Coen, McDermott, Vapor Power, Woodward FST, Parker Hannifin, John Zink, RamGen Power, Virginia Tech, DOE-NETL, Air Force Research Laboratory, DOE-ANL, and NASA GRC. Annual consortium meetings are being held in Huntsville, with the 2nd meeting scheduled for January 31-February 1, 2002. 2 Benefits of the program will include the ability to assess complex combustion challenges such as combustion instability, lean blowout, flashback, emissions and the effect of fuel type on performance. The software will greatly reduce development costs and the time cycle of combustor development. And perhaps the greatest benefit will be that the software will stimulate new, creative ideas to solve the combustion challenges of the Vision 21 plant.
Cannon, Steven M.; Adumitroaie, Virgil; McDaniel, Keith S.; Smith, Clifford E.
NERSC File Systems
Systems Systems NERSC File Systems Overview NERSC file systems can be divided into two categories: local and global. Local file systems are only accessible on a single platform, providing best performance; global file systems are accessible on multiple platforms, simplifying data sharing between platforms. File systems are configured for different purposes. On each machine you have access to at least three different file system Home: Permanent, relatively small storage for data like source code, shell scripts, etc. that you want to keep. This file system is not tuned for high performance from parallel jobs. Referenced by the environment variable $HOME. Scratch: Large, high-performance file system. Place your large data files in this file system for capacity and capability computing. Data is
and concentrating solar systems are tested. There is an emphasis on measurement of parabolic trough mirror panels. For detailed laboratory specifications, download the Optical...
Performance of Integrated Systems of Automated Roller Shade Systems...
032011 Keywords automated roller shade systems, daylight responsive dimming systems, daylighting, Integrated systems, photoelectric controls Abstract Daylight responsive...
Petascale system management experiences
Petascale HPC systems are among the largest systems in the world. Intrepid, one such system, is a 40,000 node, 556 teraflop Blue Gene/P system that has been deployed at Argonne National Laboratory. In this paper, we provide some background about the ...
Narayan Desai; Rick Bradshaw; Cory Lueninghoener; Andrew Cherry; Susan Coghlan; William Scullin
Page 1. PERMIS-2007 FOREWORD SPONSORS PerMIS 2008 PERFORMANCEMETRICS FOR INTELLIGENT SYSTEMS (PERMIS) ...
CALIFORNIA ENERGY COMMISSION Buying a PHOTOVOLTAIC SOLAR ELECTRIC SYSTEM A Consumer Guide 2003 System: A Consumer Guide i Buying a Photovoltaic Solar Electric System A Consumer Guide California Energy water system that uses the sun's energy to heat water, solar electric or photovoltaic technology uses
Krothapalli, Anjaneyulu
Space System Architecture
Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust II and III)
McManus, Dr. Hugh
Building the Senceive System
The conception and development of pervasive systems, i.e, the systems which will be used in pervasive computing environments, involve interdisciplinary team work. Apparently, the team consists of people with a diverse research background and expertise. ... Keywords: activity recognition, building a sensing system, complex system design, network configuration, project work, wireless sensor networks
Waltenegus Dargie; Alexander Schill
Quality System Documentation Management
Quality System Documentation Management. ... Minutes, summaries, or notes from Management Meetings of significance are archived here. ...
Laboratory Management (Quality) Systems
Laboratory Management (Quality) Systems. NISTIR 7028 Type Evaluation Quality Manual Template. This NISTIR has been ...
Medical imaging systems
A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.
Frangioni, John V
Photovoltaic systems and applications
Abstracts are given of presentations given at a project review meeting held at Albuquerque, NM. The proceedings cover the past accomplishments and current activities of the Photovoltaic Systems Research, Balance-of-System Technology Development and System Application Experiments Projects at Sandia National Laboratories. The status of intermediate system application experiments and residential system analysis is emphasized. Some discussion of the future of the Photovoltaic Program in general, and the Sandia projects in particular is also presented.
Not Available
Lighting Control Systems
The demand for lighting control systems in residential, commercial, and industrial facilities is on the rise with the demand for increased energy savings. With lighting accounting for almost 23% of grid load, there is significant opportunity to reduce lighting load while improving the quality of light for customers. Lighting control systems are becoming more intelligent as the need for them to interface with building control systems and demand response systems also increases. Lighting control systems use...
Hobbes: composition and virtualization as the foundations of an extreme-scale OS/R
This paper describes our vision for Hobbes, an operating system and runtime (OS/R) framework for extreme-scale systems. The Hobbes design explicitly supports application composition, which is emerging as a key approach for applications to address scalability ... Keywords: application composition, operating system, supercomputing, virtualization
Ron Brightwell, Ron Oldfield, Arthur B. Maccabe, David E. Bernholdt
Green-Energy Transportation
Battery technology is the key bottleneck in many cyberphysical systems (CPS). For green-energy CPS transportation applications, such as hybrid electrical vehicles (HEVs) and plug-in HEVs (PHEVs), the battery system design is mostly based on lithium-ion rechargeable electrochemical battery technology, which is bulky, expensive, unreliable, and is the primary roadblock for PHEV adoption and market penetration. For PHEVs, the battery system performance and lifetime reliability are further affected by various user-dependent effects. Battery system modeling and user study are thus essential for battery system design and optimization. This paper presents detailed investigation on battery system modeling and user study for emerging PHEVs. The proposed modeling solution can accurately characterize battery system run-time charge-cycle efficiency, and long-term cycle life. In particular, it models battery system capacity variation and fading due to fabrication and run-time aging effects. An embedded monitoring system is designed and deployed in a number of HEVs and PHEVs, which can monitor users � driving behavior and battery usage at real time. Using the proposed modeling and monitoring solutions, we conduct user study to investigate battery system run-time usage, characterize user driving behavior, and study the impact of user driving patterns on battery system run-time charge-cycle efficiency, capacity variation and reliability, and life-cycle economy. This work is the first step in battery system design and optimization for emerging green-energy CPS transportation applications. 1.
Kun Li; Jie Wu; Yifei Jiang; Li Shang; Qin Lv; Robert Dick; Dragan Maksimovic; Kun Li; Jie Wu; Yifei Jiang; Li Shang; Qin Lv; Robert Dick; Dragan Maksimovic
A platform for developing adaptable multicore applications
Computer systems are resource constrained. Application adaptation is a useful way to optimize system resource usage while satisfying the application performance constraints. Previous application adaptation efforts, however, were ad-hoc, time-consuming, ... Keywords: application adaptation, frequency scaling, multicore, parallelization, run-time systems
Dan Fay; Li Shang; Dirk Grunwald
Fine-Grained Software Reconfiguration for Wireless Sensor Networks
proposed in scenarios whose requirements cannot be fully predicted, or where the system functionality must. In this paper we present FIGARO, a programming model supported by an effi- cient run-time system and distributed changes over time and/or cannot be predicted a priori. For instance, in emergency response [2] systems
Picco, Gian Pietro
Optimizing process creation and execution on multi-core architectures
The execution of a single process multiple data (SPMD) application involves running multiple instances of a process with possibly varying arguments. With the widespread adoption of massively multicore processors, there has been a focus towards harnessing ... Keywords: batched system calls, manycore runtime systems, process spawn optimization, scalable intra-node process launch, vector operating system interfaces
Abhishek Kulkarni, Latchesar Ionkov, Michael Lang, Andrew Lumsdaine
Renovating Residential HVAC Systems HVAC Systems
- 1 - LBNL 57406 Renovating Residential HVAC Systems HVAC Systems J.A. McWilliams and I.S. Walker and Air Conditioning), and Stacy Hunt and Ananda Harzell (IBACOS). #12;- 3 - Renovating Residential HVAC Guideline for Residential HVAC Retrofits (http
This document contains appendices on these topics: COMPUTERS AND CONTROLS; COMPUTER VISION SYSTEM; ELECTRICAL SYSTEMS; MECHANICAL SYSTEMS; ROBOTIC VEHICLE SYSTEMS; FIELD TRIALS.
David N. Rocheleau, Senior Investigator; Edward A. Hamilton, Associate Director, SCUREF; Jerry L. Hudgins, Senior Investigator; Paul McCarty, Graduate Research Assistant; Robert J. Schalkoff, Senior Investigator; Robert O. Pettus, Project Manager & Principal Investigator
The Napier Type System
Persistent programming is concerned with the construction of large and long lived systems of data. In designing and building persistent object systems, we are attempting to regularise the activities that are performed on data by programming languages, operating systems, database management systems and file systems. We have identified the following areas of research which we are investigating in the context of persistent systems. They are: controlling complexity, protection of data, orthogonal persistence, controlled system evolution and concurrent computation. In this paper, we describe the data modelling facilities of the Napier type system. We also demonstrate the flexible and incremental nature of the type checking mechanism that is required for persistent programming. The type system is central to the nature of the Napier language and we will demonstrate how it has been designed to solve problems in the five areas identified above.
R. Morrison; A.L. Brown; R. Carrick; R.C.H. Connor; A. Dearle; M.P. Atkinson
Modeling Power Systems as Complex Adaptive Systems
Physical analogs have shown considerable promise for understanding the behavior of complex adaptive systems, including macroeconomics, biological systems, social networks, and electric power markets. Many of today's most challenging technical and policy questions can be reduced to a distributed economic control problem. Indeed, economically based control of large-scale systems is founded on the conjecture that the price-based regulation (e.g., auctions, markets) results in an optimal allocation of resources and emergent optimal system control. This report explores the state-of-the-art physical analogs for understanding the behavior of some econophysical systems and deriving stable and robust control strategies for using them. We review and discuss applications of some analytic methods based on a thermodynamic metaphor, according to which the interplay between system entropy and conservation laws gives rise to intuitive and governing global properties of complex systems that cannot be otherwise understood. We apply these methods to the question of how power markets can be expected to behave under a variety of conditions.
Chassin, David P.; Malard, Joel M.; Posse, Christian; Gangopadhyaya, Asim; Lu, Ning; Katipamula, Srinivas; Mallow, J V.
Architecture-Aware Algorithms for Scalable Performance and Resilience on Heterogeneous Architectures
The goal of the Extreme-scale Algorithms & Software Institute (EASI) is to close the ?application-architecture performance gap? by exploring algorithms and runtime improvements that will enable key science applications to better exploit the architectural features of DOE extreme-scale systems. For the past year of the project, our efforts at the University of Tennessee have concentrated on, and made significant progress related to, the following high-level EASI goals: ? Develop multi-precision and architecture-aware implementations of Krylov, Poisson, Helmholtz solvers, and dense factorizations for heterogeneous multi-core systems; ? Explore new methods of algorithm resilience, and develop new algorithms with these capabilities; ? Develop runtime support for adaptable algorithms that are dealing with resilience, scalability; ? Distribute the new algorithms and runtime support through widely used software packages; ? Establish a strong outreach program to disseminate results, interact with colleagues and train students and junior members of our community.
Dongarra, Jack [University of Tennessee, Knoxville] [University of Tennessee, Knoxville
Verification of Adaptive Systems
Adaptive systems are critical for future space and other unmanned and intelligent systems. Verification of these systems is also critical for their use in systems with potential harm to human life or with large financial investments. Due to their nondeterministic nature and extremely large state space, current methods for verification of software systems are not adequate to provide a high level of assurance for them. The combination of stabilization science, high performance computing simulations, compositional verification and traditional verification techniques, plus operational monitors, provides a complete approach to verification and deployment of adaptive systems that has not been used before. This paper gives an overview of this approach.
Pullum, Laura L [ORNL; Cui, Xiaohui [New York Institute of Technology (NYIT); Vassev, Emil [Lero � The Irish Software Engineering Research Centre; Hinchey, Mike [Lero � The Irish Software Engineering Research Centre; Rouff, Christopher [Lockheed Martin Corporation; Buskens, Richard [Lockheed Martin Corporation
Management System Management System Environmental Management System An Environmental Management System is a systematic method for assessing mission activities, determining the environmental impacts of those activities, prioritizing improvements, and measuring results. May 30, 2012 The continuous improvement cycle Our Environmental Management System encourages continuous improvement of our environmental performance. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Managing our effects on the environment We are committed to protecting the environment while conducting our national security and energy-related missions. Laboratory Environmental Governing Policy What is the Environmental Management System? It covers every program in the Laboratory
Standard-C hydrogen monitoring system, system design description
Standard-C cabinet arrangement system design description for the Standard Hydrogen Monitoring System.
Schneider, T.C., Westinghouse Hanford
The objective of this analysis is to identify issues and criteria that apply to the design of the Subsurface Emplacement Transportation System (SET). The SET consists of the track used by the waste package handling equipment, the conductors and related equipment used to supply electrical power to that equipment, and the instrumentation and controls used to monitor and operate those track and power supply systems. Major considerations of this analysis include: (1) Operational life of the SET; (2) Geometric constraints on the track layout; (3) Operating loads on the track; (4) Environmentally induced loads on the track; (5) Power supply (electrification) requirements; and (6) Instrumentation and control requirements. This analysis will provide the basis for development of the system description document (SDD) for the SET. This analysis also defines the interfaces that need to be considered in the design of the SET. These interfaces include, but are not limited to, the following: (1) Waste handling building; (2) Monitored Geologic Repository (MGR) surface site layout; (3) Waste Emplacement System (WES); (4) Waste Retrieval System (WRS); (5) Ground Control System (GCS); (6) Ex-Container System (XCS); (7) Subsurface Electrical Distribution System (SED); (8) MGR Operations Monitoring and Control System (OMC); (9) Subsurface Facility System (SFS); (10) Subsurface Fire Protection System (SFR); (11) Performance Confirmation Emplacement Drift Monitoring System (PCM); and (12) Backfill Emplacement System (BES).
T. Wilson; R. Novotny
Experimental physics and industrial control system (EPICS) input/output controller (IOC) application developer`s guide
This document describes the core software that resides in an Input/Output Controller (IOC), one of the major components of EPICS. The plan of the book is: EPICS overview, IOC test facilities, general purpose features, database locking - scanning - and processing, static database access, runtime database access, database scanning, record and device support, device support library, IOC database configuration, IOC initialization, and database structures. Other than the first chapter this document describes only core IOC software. Thus it does not describe other EPICS tools such as the sequencer. It also does not describe Channel Access, a major IOC component.
Kraimer, M.R.
Business System Planning Project System Requirements Specification
The purpose of the Business Systems Planning Project System Requirements Specification (SRS) is to provide the outline and contents of the requirements for the CH2M HILL Hanford Group, Inc. (CHG) integrated business and technical information systems. The SRS will translate proposed objectives into the statement of the functions that are to be performed and data and information flows that they require. The requirements gathering methodology will use (1) facilitated group requirement sessions; (2) individual interviews; (3) surveys; and (4) document reviews. The requirements will be verified and validated through coordination of the technical requirement team and CHG Managers. The SRS document used the content and format specified in Lockheed Martin Services, Inc. Organization Standard Software Practices in conjunction with the Institute of Electrical and Electronics Engineers Standard 8340-1984 for Systems Requirements Documents.
Crowd-powered systems
Crowd-powered systems combine computation with human intelligence, drawn from large groups of people connecting and coordinating online. These hybrid systems enable applications and experiences that neither crowds nor ...
Bernstein, Michael Scott
Urban organizational systems
General systems theory provides a conceptual framework for the integration of knowledge from a wide variety of specialized fields. Systems theory serves to synthesize, reconcile, and integrate knowledge making it possible ...
Morog, Joseph V
Regimes in Simple Systems
Dynamical systems possessing regimes are identified with those where the state space possesses two or more regions such that transitions of the state from either region to the other are rare. Systems with regimes are compared to those where ...
Edward N. Lorenz
IBM POWER7 systems
This paper describes the system architectures and designs of the IBM POWER7� servers. From the smallest single-processor socket blade to the largest 32-processor-socket 256-core enterprise rack server, each system is designed to fully ...
R. X. Arroyo; R. J. Harrington; S. P. Hartman; T. Nguyen
Absorption heat pump system
The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.
Grossman, Gershon (Oak Ridge, TN)
Grossman, G.
Photovoltaic System Performance
Photovoltaic (PV) systems are usually composed of numerous solar arrays, which in turn, are composed of numerous PV cells. The performance of the system is therefore dependent on the performance of...
Stepping Motor Control System
This paper describes a hardware system designed to facilitate position and velocity control of a group of eight stepping motors using a PDP-11. The system includes motor driver cards and other interface cards in addition ...
Larson, Noble G.
Hanford System Overview
CHG0612-16.0 CH2M-32399-VA Hanford System Overview Hanford System Overview January 23-24, 2007 Paul Certa Tom Crawford Aluminum and Chromium Leaching for
Small Modular Biomass Systems
Fact sheet that provides an introduction to small modular biomass systems. These systems can help supply electricity to rural areas, businesses, and people without power. They use locally available biomass fuels such as wood, crop waste, and animal manures.
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
Energy Basics: Photovoltaic Systems
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
an entire PV system. This system is usually everything needed to meet a particular energy demand, such as powering a water pump, the appliances and lights in a home, or-if the...
Transport in granular systems
There are many situations in which a continuum view of granular systems does not fully capture the relevant mechanics. In order for engineers to be able to design systems for transporting granular materials, there needs ...
Wendell, Dawn M. (Dawn Marie), 1983-
Residential Geothermal Systems Credit
A resident individual taxpayer of Montana who installs a geothermal heating or cooling system in their principal dwelling can claim a tax credit based on the installation costs of the system, not...
Double Degenerate Binary Systems
In this study, angular momentum loss via gravitational radiation in double degenerate binary (DDB)systems (NS + NS, NS + WD, WD + WD, and AM CVn) is studied. Energy loss by gravitational waves has been estimated for each type of systems.
Yakut, K. [University of Ege, Department of Astronomy and Space Sciences, 35100-Izmir (Turkey)
Electricity Distribution System Workshop
Discussion Summary Discussion Summary Electricity Transmission System Workshop 1 Grid Tech Team Discussion Summary Electricity Transmission System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Synthesized Challenges ............................................................................................................................. 5
System Compatibility of Modern Lighting Control Systems
The state of the energy industry combined with growing economic pressures will drive accelerated use of energy-efficient dimmable lighting devices and control systems. While penetration and application will be different across customer sectors, the goal is to dynamically reduce lighting load without compromising productivity and the quality of light and life in a timely manner. Continual improvement of dimmable devices and controls is paramount to achieving that goal. EPRI research concepts in system com...
EPICS system: system structure and user interface
This paper present the user's view of and the general organization of the EPICS control system at Fermilab. Various subsystems of the EPICS control system are discussed. These include the user command language, software protection, the device database, remote computer interfaces, and several application utilities. This paper is related to two other papers on EPICS: an overview paper and a detailed implementation paper.
West, R.E.; Bartlett, J.F.; Bobbitt, J.S.; Lahey, T.E.; Kramper, B.J.; MacKinnon, B.A.
Information Systems Group Homepage
... computational methods, data/knowledge mining tools, and semantic services using systems-based approaches, to advance measurement science ...
Interactive Intelligent Systems
... in applying interactive system utility measurements against some hard problems in both the intelligence community (IC) and the military (DARPA). ...
CSRC - Systems Administration
... The intended audience is composed of Windows 2000 Systems Administrators and technical Windows 2000 Professional users working in ...
Fuel washout detection system
A system for detecting grossly failed reactor fuel by detection of particulate matter as accumulated on a filter.
Colburn, Richard P. (Pasco, WA)
Lithium battery management system
Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; and a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold. A method of managing the temperature of a lithium battery system is also included.
Dougherty, Thomas J. (Waukesha, WI)
Distribution System Losses Evaluation
Currently, there is not an industry standard on how utilities calculate and account for electrical losses and reductions in electric system losses. Computer models used to analyze power flows typically only include the primary components of the distribution system infrastructure. More detailed electric system models can benefit utilities by providing more accurate loss calculations as well as benefits for system planning and engineering. The utility industry could benefit from having a consistent and uni...
Monitoring System Performance (Presentation)
Requirements for a standard test to rate the durability of photovoltaic (PV) modules at system voltage are discussed.
Emery, K.; Smith, R.
Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Solar Photovoltaics Cells Systems Concentrating Solar...
New electrochromic mirror systems
New electrochromic mirror systems ... recorded using a fiber optic spectrometer (Ocean Optics). ... transmittance modulation of infrared light could lead
Microfluidic Partitioning System
home \\ technologies \\ microfluidic partitioning system. Technologies: Ready-to-Sign Licenses: ... for the Department of Energy's National Nuclear Security Administration
NIST Intranet Quality System Links
Safety. Environmental Management System. NIST Quality System Resources. Assessor Resources. MSAG Website. Dates and Deadlines. ...
Match Pumps to System Requirements
BestPractices Program tip sheet discussing pumping system efficiency matching pumps to system requirements
CMS System Security Plan Procedure
... TASK 5: SYSTEM DECOMMISSION. ... BPSSM Business Partners Systems Security Manual. ... of Information Technology, Policy, Procedures, & Audits. ...
DOE Systems Engineering Methodology
Computer System Retirement Guidelines Computer System Retirement Guidelines Version 3 September 2002 U.S. Department of Energy Office of the Chief Information Officer Computer System Retirement Guidelines Date: September 2002 Page 1 Rev Date: Table of Contents Section Page Purpose ............................................................................................................................................ 2 Initiation and Distribution ............................................................................................................... 2 Resource .......................................................................................................................................... 2 General Information ........................................................................................................................
UML for systems engineering
The paper provides an introduction to the employment of Unified Modeling Language (UML) in systems engineering. The standard being developed for this purpose is the Systems Modeling Language (SysML) specification. This paper, while not dealing with SysML ... Keywords: DoDAF, Software engineering, SysML, Systems engineering, UML
Brian Willard
Recommender systems survey
Recommender systems have developed in parallel with the web. They were initially based on demographic, content-based and collaborative filtering. Currently, these systems are incorporating social information. In the future, they will use implicit, local ... Keywords: Cold-start, Collaborative filtering, Evaluation metrics, Hybrid, Internet of things, Prediction, Recommendation, Recommender systems, Similarity measures, Social
J. Bobadilla, F. Ortega, A. Hernando, A. Guti�Rrez
Modular Integrated Energy Systems
system (or CHP -- Cooling, Heat and Power) system at Ft. Bragg. Much of this work is funded by the U consists of a gas turbine-generator, a heat recovery steam generator, and a waste heat fired absorption-driven absorption chiller, · Install and monitor the performance of a prototype IES modular system employing
Oak Ridge National Laboratory
Intelligent Car System
In modern life the road safety has becomes the core issue. One single move of a driver can cause horrifying accident. The main goal of intelligent car system is to make communication with other cars on the road. The system is able to control to speed, direction and the distance between the cars the intelligent car system is able to recognize traffic light and is able to take decision according to it. This paper presents a framework of the intelligent car system. I validate several aspect of our system using simulation.
Siddique, Qasim
Massively parallel computing system
A parallel computing system and method having improved performance where a program is concurrently run on a plurality of nodes for reducing total processing time, each node having a processor, a memory, and a predetermined number of communication channels connected to the node and independently connected directly to other nodes. The present invention improves performance of the parallel computing system by providing a system which can provide efficient communication between the processors and between the system and input and output devices. A method is also disclosed which can locate defective nodes with the computing system.
Benner, R.E.; Gustafson, J.L.; Montry, G.R.
Distribution System Research Priorities
Mark McGranaghan Mark McGranaghan EPRI ELECTRICITY DISTRIBUTION SYSTEM WORKSHOP Crystal City, VA September 24, 2012 Distribution System Research Priorities 2 © 2012 Electric Power Research Institute, Inc. All rights reserved. The Power System Roadmaps start with a Vision Future Power System will require new technologies, infrastructure, and control systems 3 © 2012 Electric Power Research Institute, Inc. All rights reserved. R&D Roadmaps - Coordination is Critical Roadmaps are living documents 4 © 2012 Electric Power Research Institute, Inc. All rights reserved. Developing the next generation grid * Industry needs new technologies, communication protocols, and information management methods - More variable generation sources and controllable loads - Aging infrastructure
Business System Planning Project, Preliminary System Design
CH2M HILL Hanford Group, Inc. (CHG) is currently performing many core business functions including, but not limited to, work control, planning, scheduling, cost estimating, procurement, training, and human resources. Other core business functions are managed by or dependent on Project Hanford Management Contractors including, but not limited to, payroll, benefits and pension administration, inventory control, accounts payable, and records management. In addition, CHG has business relationships with its parent company CH2M HILL, U.S. Department of Energy, Office of River Protection and other River Protection Project contractors, government agencies, and vendors. The Business Systems Planning (BSP) Project, under the sponsorship of the CH2M HILL Hanford Group, Inc. Chief Information Officer (CIO), have recommended information system solutions that will support CHG business areas. The Preliminary System Design was developed using the recommendations from the Alternatives Analysis, RPP-6499, Rev 0 and will become the design base for any follow-on implementation projects. The Preliminary System Design will present a high-level system design, providing a high-level overview of the Commercial-Off-The-Shelf (COTS) modules and identify internal and external relationships. This document will not define data structures, user interface components (screens, reports, menus, etc.), business rules or processes. These in-depth activities will be accomplished at implementation planning time.
Efficient Collection And Storage Of Indexed Program Traces
the run can be reconstructed without having to run the program again. This hoists "run the program" out it should run on PC-class hardware, supporting standard operating systems, languages, and runtime systems the space and time requirements for recording must not exhaust the programmer's hardware or patience. I have
Zhang, Xiangyu
Mostly static program partitioning of binary executables
We have built a runtime compilation system that takes unmodified sequential binaries and improves their performance on off-the-shelf multiprocessors using dynamic vectorization and loop-level parallelization techniques. Our system, Azure, is purely software ... Keywords: Continuous compilation and optimization, binary translation, dynamic parallelization
Efe Yardimci; Michael Franz
How to keep your head above water while detecting errors
Today's distributed systems need runtime error detection to catch errors arising from software bugs, hardware errors, or unexpected operating conditions. A prominent class of error detection techniques operates in a stateful manner, i.e., it keeps track ... Keywords: J2EE multi-tier systems, hidden markov model, high throughput distributed applications, intelligent sampling, stateful error detection
Ignacio Laguna; Fahad A. Arshad; David M. Grothe; Saurabh Bagchi
Achieving efficiency, quality of service and robustness in multi-organizational Grids
Scalability, flexibility, quality of service provisioning, efficiency and robustness are the desired characteristics of most computing systems. Although the emerging Grid computing paradigm is scalable and flexible, achieving both efficiency and quality ... Keywords: Grid middleware, Grid resource management, Grid scheduling, Quality of service in distributed systems, Uncertain runtimes management
Umar Farooq; Shikharesh Majumdar; Eric W. Parsons
Reflexes: Abstractions for integrating highly responsive tasks into Java applications
Achieving submillisecond response times in a managed language environment such as Java or C# requires overcoming significant challenges. In this article, we propose Reflexes, a programming model and runtime system infrastructure that lets developers ... Keywords: Java virtual machine, Real-time systems, memory management
Jesper Honig Spring; Filip Pizlo; Jean Privat; Rachid Guerraoui; Jan Vitek
High-performance numerical optimization on multicore clusters
This paper presents a software infrastructure for high performance numerical optimization on clusters of multicore systems. At the core, a runtime system implements a programming and execution environment for irregular and adaptive task-based parallelism. ... Keywords: global optimization, message passing, numerical differentiation, task parallelism
Panagiotis E. Hadjidoukas; Constantinos Voglis; Vassilios V. Dimakopoulos; Isaac E. Lagaris; Dimitris G. Papageorgiou
Racer: effective race detection using aspectj
Programming errors occur frequently in large software systems, and even more so if these systems are concurrent. In the past researchers have developed specialized programs to aid programmers detecting concurrent programming errors such as deadlocks, ... Keywords: aspect-oriented programming, race detection, runtime verification, semantic pointcuts, static analysis
Eric Bodden; Klaus Havelund
A Sustainability Plan for Princeton
with sensors for control of dimmable lighting systems will allow optimal use of ambient daylight while high and alternative energy sources. The campus can serve as both a model for advanced sustainability practices system improvements 8% Plant efficiency improvement and runtime 14% Alternative fuels 9% Grid CO2
Rowley, Clarence W.
Spatially non-uniform ground state and quantized vortices in a two-component
settings to residential and commercial use. The system features one assembly with a condenser the condenser. The water flow direction can be changed at run-time to optimize performance. Advantages ·· Energy. The system employs lithium bromide, which is now widely used in commercial air conditioning. In current
Demokritov, S.O.
An Approach for Detecting Inconsistencies between Behavioral Models of the Software Architecture and the Code
In practice, inconsistencies between architectural documentation and the code might arise due to improper implementation of the architecture or the separate, uncontrolled evolution of the code. Several approaches have been proposed to detect the inconsistencies between the architecture and the code but these tend to be limited for capturing inconsistencies that might occur at runtime. We present a runtime verification approach for detecting inconsistencies between the dynamic behavior of the architecture and the actual code. The approach is supported by a set of tools that implement the architecture and the code patterns in Prolog, and support the automatic generation of runtime monitors for detecting inconsistencies. We illustrate the approach and the toolset for a Crisis Management System case study.
Ciraci, Selim; Sozer, Hasan; Tekinerdogan, Bedir
Quality monitored distributed voting system
A quality monitoring system can detect certain system faults and fraud attempts in a distributed voting system. The system uses decoy voters to cast predetermined check ballots. Absent check ballots can indicate system faults. Altered check ballots can indicate attempts at counterfeiting votes. The system can also cast check ballots at predetermined times to provide another check on the distributed voting system. 6 figs.
Skogmo, D.
Turbine power plant system
A turbine power plant system consisting of three sub-systems; a gas turbine sub-system, an exhaust turbine sub-system, and a steam turbine sub-system. The three turbine sub-systems use one external fuel source which is used to drive the turbine of the gas turbine sub-system. Hot exhaust fluid from the gas turbine sub-system is used to drive the turbines of the exhaust turbine sub-system and heat energy from the combustion chamber of the gas turbine sub-system is used to drive the turbine of the steam turbine sub-system. Each sub-system has a generator. In the gas turbine sub-system, air flows through several compressors and a combustion chamber and drives the gas turbine. In the exhaust turbine sub-system, hot exhaust fluid from the gas turbine sub-system flows into the second passageway arrangement of first and fourth heat exchangers and thus transfering the heat energy to the first passageway arrangement of the first and fourth heat exchangers which are connected to the inlets of first and second turbines, thus driving them. Each turbine has its own closed loop fluid cycle which consists of the turbine and three heat exchangers and which uses a fluid which boils at low temperatures. A cooler is connected to a corresponding compressor which forms another closed loop system and is used to cool the exhaust fluid from each of the two above mentioned turbines. In the steam turbine sub-system, hot fluid is used to drive the steam turbine and then it flows through a fluid duct, to a first compressor, the first fluid passageway arrangement of first and second heat exchangers, the second passageway of the first heat exchanger, the combustion chamber of the gas turbine where it receives heat energy, and then finally to the inlet of the steam turbine, all in one closed loop fluid cycle. A cooler is connected to the second passageway of the second heat exchanger in a closed loop fluid cycle, which is used to cool the turbine exhaust.
Papastavros, D.
NEWTON's Metric System Resources
Please select any link below. Search this page, using your web browser's search function. Please select any link below. Search this page, using your web browser's search function. Metric System References Do you have a great metric reference link? Please click our Ideas page. Featured Reference Links: Metric (SI) References Metric (SI) References Having trouble with the metric system? Visit the National Institute of Standards and Technology's site about the rules and style conventions of the International System of Units (SI). The Metric System The Metric System Need another reference? Try this site provided by Wikipedia that discusses the metric system and its history in depth. Metric Converter Metric Converter Need to convert to Metric? OnlineConversion.com allows you to convert just about anything to just about anything else. This will let you easily from metric to US Standard notation, and vice versa.
NSLS Computer Systems
Computer Systems Computer Systems Micro Systems WorkStation Applications Network Configuration Documents The National Synchrotron Light Source facility at the Brookhaven National Laboratory in New York, consists of two storage rings, one for VUV operating at 800 Mev and one for XRAY at 2.8 Gev and a common injection system comprised of a linear accelerator and a Booster ring. Hardware Architecture The hardware architecture of the present control system follows the current trend seen in many accelerator facilities. It is a two-level distributed system consisting of HP/900 series workstations connected by the standard ethernet to VME-based microprocessor subsystems. All the workstations have local disk and sufficient memory for fast response. Workstations are used as file server, back-up file server and for program development and other
Building America System Research
Building America System Building America System Research Eric Werling, DOE Ren Anderson, NREL email@example.com, 202-586-0410 firstname.lastname@example.com, 303-384-7443 April 2, 2013 Building America System Innovations: Accelerating Innovation in Home Energy Savings 2 | Program Name or Ancillary Text eere.energy.gov Project Relevance 3 | Building Technologies Office eere.energy.gov Building America Fills Market Need for a High-Performance Homes HUB of Innovation
Scalable autonic processing systems
The number of automotive functions that are controlled by computers is rapidly increasing. In the past, these functions were confined to stand-alone control units, such as the engine or ABS brake controller. In modern cars, the data exchange between ... Keywords: autonic systems, distributed processing and real-time systems, event-triggered, fault tolerance, parallel processing, scalable automotive electronics system, time-triggered, vehicle electronics
Adnan Shaout; Najamuz Zaman; Taisir Eldos
Plasmatron-catalyst system
A plasmatron-catalyst system. The system generates hydrogen-rich gas and comprises a plasmatron and at least one catalyst for receiving an output from the plasmatron to produce hydrogen-rich gas. In a preferred embodiment, the plasmatron receives as an input air, fuel and water/steam for use in the reforming process. The system increases the hydrogen yield and decreases the amount of carbon monoxide.
Bromberg, Leslie (Sharon, MA); Cohn, Daniel R. (Chestnut Hill, MA); Rabinovich, Alexander (Swampscott, MA); Alexeev, Nikolai (Moscow, RU)
Multizone infiltration monitoring system
A multizone infiltration monitoring system (MIMS) using a single tracer gas has been developed. MIMS measures zonal infiltration and exfiltration as well as interzonal air movement rates. The system has been used at the 4-zone test house at the SERI interim field site, and this paper presents preliminary results. The present system can determine zonal infiltration rates, and the results show significant differences in infiltration rates for the various zones.
Wortman, D.N.; Burch, J.; Judkoff, R.
System and Network Management
This document covers Systems and Network Management Requirements and is the first deliverable in a joint EPRI and Utility User Project to develop Network Management capability for Electric Utility Automation Systems (UAS) using international communication standards such as IEC 61850. The management of substation automation systems is critical since tools are now based, for the most part, on proprietary hardware and software. In modern state-of-the art substations, traditional network management has ...
Vehicle Technologies Office: Battery Systems
Battery Systems to someone by E-mail Share Vehicle Technologies Office: Battery Systems on Facebook Tweet about Vehicle Technologies Office: Battery Systems on Twitter Bookmark...
Lighting Group: Controls: Systems Integration
Systems Integration Building Control Systems Integration Objective This research project investigates how diverse building control systems can be integrated to provide seamless...
Advanced Manufacturing Office: Pump Systems
Pump Systems on Twitter Bookmark Advanced Manufacturing Office: Pump Systems on Google Bookmark Advanced Manufacturing Office: Pump Systems on Delicious Rank Advanced...
ESP: A system utilization benchmark
ESP: A System Utilization Benchmark Adrian T. Wong, LeonidEffective System Performance (ESP) test, which is designedEffective System Performance (ESP) benchmark, which measures
Wong, Adrian T.; Oliker, Leonid; Kramer, William T.C.; Kaltz, Teresa L.; Bailey, David H.
Deepwater drilling riser system
The principal focus of this paper is to discuss and summarize, from the manufacturer's perspective, the primary milestones in the development of the marine riser system used to drill in record water depths off the U.S. east coast. This riser system is unique in that it used advanced designs, material technology, and quality control to enable safe operation in water depths beyond the capability of conventional drilling riser systems. Experience and research have led to design improvements that are now being incorporated in new riser systems that have the potential of expanding the frontiers to increasingly deeper water.
Chastain, T.; Stone, D.
Energy Management Systems
This presentation will address results from a pilot project with 10 chemical plants on energy management systems and the development of an energy efficiency plant certification program.
Ferland, K.
Energy Basics: Heating Systems
of energy sources, including electricity, boilers, solar energy, and wood and pellet-fuel heating. Small Space Heaters Used when the main heating system is inadequate or when...
Laundry heat recovery system
A laundry heat recovery system includes a heat exchanger associated with each dryer in the system, the heat exchanger being positioned within the exhaust system of the dryer. A controller responsive to the water temperature of the heat exchangers and the water storage for the washer selectively circulates the water through a closed loop system whereby the water within the exchangers is preheated by the associated dryers. By venting the exhaust air through the heat exchanger, the air is dehumidified to permit recirculation of the heated air into the dryer.
Alio, P.
Solar powered desalination system
Fundamentals of Salt Water Desalination. New York: Elsevier,7. Lightbucket. Large scale desalination: is there enoughSystem for Seawater Desalination Plants. The Netherlands:
Mateo, Tiffany Alisa
Precision volume measurement system.
A new precision volume measurement system based on a Kansas City Plant (KCP) design was built to support the volume measurement needs of the Gas Transfer Systems (GTS) department at Sandia National Labs (SNL) in California. An engineering study was undertaken to verify or refute KCP's claims of 0.5% accuracy. The study assesses the accuracy and precision of the system. The system uses the ideal gas law and precise pressure measurements (of low-pressure helium) in a temperature and computer controlled environment to ratio a known volume to an unknown volume.
Fischer, Erin E.; Shugard, Andrew D.
Next generation CAT system
Two novel techniques for future CAT system are presented. Transmission descattering is a singleshot method to differentiate unscattered and scattered components of light transmission through a scattering material. ...
Kim, Jaewon, S.M. Massachusetts Institute of Technology
Transient data recorder systems
Transient data recorder systems including a high speed charge coupled device and a device exerciser, including a high speed sampler and driver circuitry.
Linnenbrink, Thomas E. (Winnetka, IL); Gradl, David A. (Des Plaines, IL)
Norcal Waste Systems, Inc.
Fact sheet describes the LNG long-haul heavy-duty trucks at Norcal Waste Systems Inc.'s Sanitary Fill Company.
System Benefits Charge
New York's system benefits charge (SBC), established in 1996 by the New York Public Service Commission (PSC), supports energy efficiency, education and outreach, research and development, and low...
Intelligent Systems Division Homepage
... the versatility, autonomy, and rapid re-tasking of intelligent robots and automation technologies for smart manufacturing and cyber-physical systems ...
Energy Information Systems website
and visualize the energy use of their buildings. Please visit the recently updated Energy Information System website for EETD research papers, case studies, and a download...
Nuclear Energy Systems
Role of Synchrotron Radiation in Solving Scientific Challenges in Advanced Nuclear Energy Systems 27 to 28 January 2010 at Argonne's Advanced Photon Source Scope Third-generation...
Genomics and Systems Biology
Genomics and Systems Biology LANL leads the world in computational finishing of microbial genomes Read caption + In 2013, Los Alamos scientist Richard Sayre and his team...
Bearing Material Systems
Table 2 Single-metal bearing material systems...Bronze C C C D B 14 2 Electric motor bushings, home appliance bearings,
Lighting Systems Test Facilities
Measurement equipment with light beam Lighting Systems Test Facilities NOTICE Due to the current lapse of federal funding, Berkeley Lab websites are accessible, but may not be...
Benchmark Monitoring: Retired Systems
Completed Batch Jobs Completed Parallel Jobs Usage Reports Hopper Benchmark Monitoring Edison Benchmark Monitoring Carver Benchmark Monitoring Benchmark Monitoring: Retired Systems...
Edison Systems Technology Documentation
Technology Documentation Systems Technology Documentation Downloads CrayXC30Networking.pdf | Adobe Acrobat PDF file Cray XC30 Networking SonexionBrochure.pdf | Adobe Acrobat PDF...
such as energy, agriculture, and environmental cleanup. Get Expertise Babetta Marrone Biofuels Program Manager Email Cheryl Kuske DOE BER Biological System Science Division...
Infrared Thermography Systems
funds for Fiscal Year 2014. Title Infrared Thermography Systems Publication Type Book Chapter LBNL Report Number LBNL-46590 Year of Publication 2000 Authors Griffith, Brent...
Toyota production system.
??Background: There are various manufacturing methods and systems in automobile industries throughout the world. Of these, many practice lean manufacturing methods. The most effective and� (more)
Vyas, Kewalkumar Chandrakant
Blast Effects Suppression System
The HydroSuppressor system was developed to protect critical facilities from the devastating effects of blast from a vehicle bomb.� HydroSuppressor ...
Remote Systems Design & Deployment
The Pacific Northwest National Laboratory (PNNL) was tasked by Washington River Protection Solutions, LLC (WRPS) to provide information and lessons learned relating to the design, development and deployment of remote systems, particularly remote arm/manipulator systems. This report reflects PNNL�s experience with remote systems and lays out the most important activities that need to be completed to successfully design, build, deploy and operate remote systems in radioactive and chemically contaminated environments. It also contains lessons learned from PNNL�s work experiences, and the work of others in the national laboratory complex.
Bailey, Sharon A.; Baker, Carl P.; Valdez, Patrick LJ
The Epicure Control System
The Epicure Control System supports the Fermilab fixed target physics program. The system is distributed across a network of many different types of components. The use of multiple layers on interfaces for communication between logical tasks fits the client-server model. Physical devices are read and controlled using symbolic references entered into a database with an editor utility. The database system consists of a central portion containing all device information and optimized portions distributed among many nodes. Updates to the database are available throughout the system within minutes after being requested.
Dambik, E.; Kline, D.; West, R.
Intelligent Transport Systems
in Sustainable Urban Transport: City Interview Synthesis (of Leeds, Institute for Transport Studies, forthcoming.I NTELLIGENT TRANSPORT SYSTEMS LINKING TECHNOLOGY AND
Deakin, Elizabeth; Frick, Karen Trapenberg; Skabardonis, Alexander
FCT Systems Analysis: Contacts
Systems Analysis: Contacts on AddThis.com... Home Analysis Methodologies DOE H2A Analysis Scenario Analysis Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel...
Radioisotope Power Systems
into finished metal shapes by extrusion, rolling, forming, machining, assembly, and welding. Nondestructive testing and quality systems are employed throughout the process to...
Technology reviews: Lighting systems
We present a representative review of existing, emerging, and future technology options in each of five hardware and systems areas in envelope and lighting technologies: lighting systems, glazing systems, shading systems, daylighting optical systems, and dynamic curtain wall systems. The term technology is used here to describe any design choice for energy efficiency, ranging from individual components to more complex systems to general design strategies. The purpose of this task is to characterize lighting system in the state of the art in envelope and lighting technologies in order to identify those with promise for advanced integrated systems, with an emphasis on California commercial buildings. For each technology category, the following activities have been attempted to the extent possible: Identify key performance characteristics and criteria for each technology. Determine the performance range of available technologies. Identify the most promising technologies and promising trends in technology advances. Examine market forces and market trends. Develop a continuously growing in-house database to be used throughout the project. A variety of information sources have been used in these technology characterizations, including miscellaneous periodicals, manufacturer catalogs and cut sheets, other research documents, and data from previous computer simulations. We include these different sources in order to best show the type and variety of data available, however publication here does not imply our guarantee of these data. Within each category, several broad classes are identified, and within each class we examine the generic individual technologies that fall into that class.
Schuman, J.; Rubinstein, F.; Papamichael, K.; Beltran, L.; Lee, E.S.; Selkowitz, S.
Manufacturing Systems Integration News
... NIST Cooperative Agreement with University of Maryland Supports Research on 21st Century Smart Systems Release Date: 10/13/2011 ...
NREL: Systems Engineering - Workshops
Workshops The Wind Energy Systems Engineering Workshop is a biennial workshop that invites speakers from academia, industry, and international research laboratories to discuss...
Monitoring system-of-systems requirements in multi product lines
[Context and motivation] Large-scale software-intensive systems are often considered as systems of systems comprising several interrelated product lines from which system variants are derived to meet the overall requirements. [Question/problem] ...
Thomas Klambauer, Gerald Holl, Paul Gr�nbacher
Large File System Backup: NERSC Global File System Experience
Large File System Backup NERSC Global File System ExperienceNational Laboratory Abstract NERSC�s Global File system (from all compute systems at NERSC, holds files and data from
Mokhtarani, Akbar
Could the Work System Method Embrace Systems Concepts More Fully?
The work system method was developed iteratively with the overarching goal of helping business professionals understand IT-reliant systems in organizations. It uses general systems concepts selectively, and sometimes implicitly. For example, a work system ...
Steven Alter
PIA - Human Resources System/Payroll System | Department of Energy
System PIA - Human Resources - Personal Information Change Request - Idaho National Engineering Laboratory PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM BUSINESS ENCLAVE...
Packaged CHP System Assessment
The Packaged CHP System Assessment report provides an analysis of packaged combined heat and power (CHP) systems. The report summarizes and compares the technical characteristics of commercial product lines with electric power output up to 3,000 kWe.
Video communications system
A video communications system having at least one command network formed by a combination of subsystems to include a video subsystem, an audio subsystem, a communications subsystem, and a control subsystem. The video communications system to be window driven and mouse operated, and having the ability to allow for point-to-point real-time teleconferencing. 4 figs.
Smith, R.L.
Secure video communications system
A secure video communications system having at least one command network formed by a combination of subsystems. The combination of subsystems to include a video subsystem, an audio subsystem, a communications subsystem, and a control subsystem. The video communications system to be window driven and mouse operated, and having the ability to allow for secure point-to-point real-time teleconferencing.
Smith, Robert L. (Idaho Falls, ID)
Fuzzy Systems in Biomedicine
The chapter presents recent advances of fuzzy systems in biomedicine. A short introduction is made on the main concepts of fuzzy sets theory. Then, a survey of recent research reports (2000 and beyond) is performed, in order to map existing theoretical ... Keywords: Biomedicine, Fuzzy Systems, Survey
Georgios Dounias
Purge water management system
A purge water management system for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.
Cardoso-Neto, Joao E. (North Augusta, SC); Williams, Daniel W. (Aiken, SC)
A purge water management system is described for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.
Cardoso-Neto, J.E.; Williams, D.W.
Systems Integration (Fact Sheet)
The Systems Integration (SI) subprogram works closely with industry, universities, and the national laboratories to overcome technical barriers to the large-scale deployment of solar technologies. To support these goals, the subprogram invests primarily in four areas: grid integration, technology validation, solar resource assessment, and balance of system development.
Type systems for dummies
We extend Pure Type Systems with a function turning each term M of type A into a dummy |M| of the same type (|.| is not an identity, in that M ? |M|). Intuitively, a dummy represents an unknown, canonical object of the given type: dummies are opaque ... Keywords: canonical element, proof irrelevance, pure type system
Andrea Asperti; Ferruccio Guidi
Fault-Tolerant Systems
There are many applications in which the reliability of the overall system must be far higher than the reliability of its individual components. In such cases, designers devise mechanisms and architectures that allow the system to either completely mask ... Keywords: Computer Architecture
Israel Koren; C. Mani Krishna
Heterodyne laser diagnostic system
The heterodyne laser diagnostic system includes, in one embodiment, an average power pulsed laser optical spectrum analyzer for determining the average power of the pulsed laser. In another embodiment, the system includes a pulsed laser instantaneous optical frequency measurement for determining the instantaneous optical frequency of the pulsed laser.
Globig, Michael A. (Antioch, CA); Johnson, Michael A. (Pleasanton, CA); Wyeth, Richard W. (Livermore, CA)
energy system (or CHP -- Cooling, Heat and Power) system at Ft. Bragg. Much of this work is funded fired absorption chiller. The key goals of the project are: · Develop a set of "reference" CAD-based IES a 1000 Ton exhaust-driven absorption chiller, · Install and monitor the performance of a prototype IES
Quantum Spin Systems
This article is a short introduction to the general topic of quantum spin systems. After a brief sketch of the history of the subject, the standard mathematical framework for formulating problems and results in quantum spin systems is described. Then, three short sections are devoted to Spontaneaous Symmetry Breaking, Phase transitions, and Dynamcis.
Bruno Nachtergaele
Plant Phenotype Characterization System
This report is the final scientific report for the DOE Inventions and Innovations Project: Plant Phenotype Characterization System, DE-FG36-04GO14334. The period of performance was September 30, 2004 through July 15, 2005. The project objective is to demonstrate the viability of a new scientific instrument concept for the study of plant root systems. The root systems of plants are thought to be important in plant yield and thus important to DOE goals in renewable energy sources. The scientific study and understanding of plant root systems is hampered by the difficulty in observing root activity and the inadequacy of existing root study instrumentation options. We have demonstrated a high throughput, non-invasive, high resolution technique for visualizing plant root systems in-situ. Our approach is based upon low-energy x-ray radiography and the use of containers and substrates (artificial soil) which are virtually transparent to x-rays. The system allows us to germinate and grow plant specimens in our containers and substrates and to generate x-ray images of the developing root system over time. The same plant can be imaged at different times in its development. The system can be used for root studies in plant physiology, plant morphology, plant breeding, plant functional genomics and plant genotype screening.
Daniel W McDonald; Ronald B Michaels
Technology reviews: Glazing systems
We present a representative review of existing, emerging, and future technology options in each of five hardware and systems areas in envelope and lighting technologies: lighting systems, glazing systems, shading systems, daylighting optical systems, and dynamic curtain wall systems. The term technology is used here to describe any design choice for energy efficiency, ranging from individual components to more complex systems to general design strategies. The purpose of this task is to characterize the state of the art in envelope and lighting technologies in order to identify those with promise for advanced integrated systems, with an emphasis on California commercial buildings. For each technology category, the following activities have been attempted to the extent possible: Identify key performance characteristics and criteria for each technology; determine the performance range of available technologies; identify the most promising technologies and promising trends in technology advances; examine market forces and market trends; and develop a continuously growing in-house database to be used throughout the project. A variety of information sources have been used in these technology characterizations, including miscellaneous periodicals, manufacturer catalogs and cut sheets, other research documents, and data from previous computer simulations. We include these different sources in order to best show the type and variety of data available, however publication here does not imply our guarantee of these data. Within each category, several broad classes are identified, and within each class we examine the generic individual technologies that fag into that class.
Heavy Vehicle Systems
Heavy Vehicle (HV) systems are a necessary component of achieving OHVT goals. Elements are in place for a far-ranging program: short, intermediate, and long-term. Solicitation will bring industrial input and support. Future funding trend is positive, outlook for HV systems is good.
Sid Diamond; Richard Wares; Jules Routbort
Cognitive Aeronautical Communication System
The paper explores the system and architecture requirements for cognitive driven reconfigurable hardware for an aeronautical platform, such as commercial aircraft or high altitude platforms. With advances in components and processing hardware, mobile ... Keywords: Aeronautical Data Networks, Aeronautical Systems, Cognitive Data Networks, OFDM, Software Defined Radio
M. Erturk; Huseyin Arslan; Jamal Haque; Wilfrido Moreno
Olympic voting system proposal
In an effort to address the contentious issue of judged Olympic events, the Olympic committee has proposed a pilot audience participation system to score the gymnastics and diving competitions in the upcoming 2004 Athens Summer Games. The system would ... Keywords: Olympics usability, audience, design methodology, ergonomics, industrial design, interaction design, interactive, interface, voting
Seamus Costello; Kari Kubala; Matt Turley; Mehmet Uzer
Radiation detection system
A radiation detection system including a radiation-to-light converter and fiber optic wave guides to transmit the light to a remote location for processing. The system utilizes fluors particularly developed for use with optical fibers emitting at wavelengths greater than about 500 nm and having decay times less than about 10 ns.
Franks, Larry A. (Santa Barbara, CA); Lutz, Stephen S. (Santa Barbara, CA); Lyons, Peter B. (Los Alamos, NM)
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
Overview of locking systems
The purpose of this document is to present technical information that should be useful for understanding and applying locking systems for physical protection and control. There are major sections on hardware for locks, vaults, safes, and security containers. Other topics include management of lock systems and safety considerations. This document also contains notes on standards and specifications and a glossary.
Gee, K.T.; Scott, S.H.; Wilde, M.G. [Sandia National Labs., Albuquerque, NM (United States); Highland, S.E. [Albuquerque Safe Co., Albuquerque, NM (United States)
Designing creative artificial systems
Can artificial systems be creative? Can they be designed to be creative on their own? What are the requirements of such creative artificial systems? To be able to support humans who are expected to deliver creative solutions, or to automate part of their ... Keywords: Agent, Creativity, Design, Interactivity, Learning, Self-Organization
Pieter H. G. Van Langen; Niek J. E. Wijngaards; Frances M. T. Brazier
Flue Gas Desulfurization Systems
In many of the operating flue gas desulfurization (FGD) systems throughout the world, materials corrosion leads to considerable costs and downtime. Utilities are often required to maintain, repair, replace, and/or upgrade existing materials to combat corrosion issues. This document provides the results of a recent EPRI survey that examined the various types of corrosion and materials damage in FGD systems.
Portable modular detection system
Disclosed herein are portable and modular detection devices and systems for detecting electromagnetic radiation, such as fluorescence, from an analyte which comprises at least one optical element removably attached to at least one alignment rail. Also disclosed are modular detection devices and systems having an integrated lock-in amplifier and spatial filter and assay methods using the portable and modular detection devices.
Brennan, James S. (Rodeo, CA); Singh, Anup (Danville, CA); Throckmorton, Daniel J. (Tracy, CA); Stamps, James F. (Livermore, CA)
Technology reviews: Shading systems
We present a representative review of existing, emerging, and future technology options in each of five hardware and systems areas in envelope and lighting technologies: lighting systems, glazing systems, shading systems, daylighting optical systems, and dynamic curtain wall systems. The term technology is used here to describe any design choice for energy efficiency, ranging from individual components to more complex systems to general design strategies. The purpose of this task is to characterize the state of the art in envelope and lighting technologies in order to identify those with promise for advanced integrated systems, with an emphasis on California commercial buildings. For each technology category, the following activities have been attempted to the extent possible: Identify key performance characteristics and criteria for each technology. Determine the performance range of available technologies. Identify the most promising technologies and promising trends in technology advances. Examine market forces and market trends. Develop a continuously growing in-house database to be used throughout the project. A variety of information sources have been used in these technology characterizations, including miscellaneous periodicals, manufacturer catalogs and cut sheets, other research documents, and data from previous computer simulations. We include these different sources in order to best show the type and variety of data available, however publication here does not imply our guarantee of these data. Within each category, several broad classes are identified, and within each class we examine the generic individual technologies that fall into that class.
Texas Tech University System
Texas Tech University System :: Huffaker Named as Texas Tech System General Counsel http://www.texastech.edu/stories/12-03-TTUS-Washington-DC-Trip.php[4/2/2012 8:13:27 AM] Chancellor Hance and leadership from the Texas visited with Texas Tech students and Congressional interns while in Washington, D.C. March 27, 2012 Texas
Rock, Chris
HAN System Security Requirements
This report, "Home Area Network (HAN) Security Requirements," identifies and discusses the key cyber security requirements for different interfaces of HAN-based systems. These cyber security requirements for HAN interfaces are derived from the Department of Homeland Security (DHS) "Catalog of Control Systems Security," which provides an excellent checklist of general security requirements.
Environmental Management System Plan
offices, the EMS Program Program Elements Environmental ManagementOffice of Institutional Assurance as stated in the OQMP. 3-7 � Environmental ManagementEnvironmental Management System Fiscal Year Improve (EMP classification) Integrated Safety Management System International Organization for Standardization Lawrence Berkeley National Laboratory Office
Fox, Robert
Annual Energy Outlook 2012 (EIA)
3 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2003 The EIA-176 Query System is a Windows-based system which runs under Windows operating systems 95,...
1 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2001 The EIA-176 Query system is a Windows-based system which runs under Windows operating systems 95,...
4 EIA Home > Natural Gas > Natural Gas Data Publications EIA 176 Query System 2004 The EIA-176 Query System is a Windows-based system which runs under Windows operating systems 95,...
Flywheel Power Systems: Market Analysis
High speed flywheel power systems offer a new opportunity to provide power delivery systems. Such systems are very useful to mitigate power quality problems. This report focuses on the industrial market for flywheel storage systems.
Solar hot water system update
Brief descriptions are given of the following three systems: (1) thermosyphon system, (2) system with drain-down freeze protection, and (3) system with antifreeze as freeze protection. (MOW)
Levary, A.
Balance-of-System Equipment Required for Renewable Energy Systems |
Balance-of-System Equipment Required for Renewable Energy Systems Balance-of-System Equipment Required for Renewable Energy Systems Balance-of-System Equipment Required for Renewable Energy Systems July 2, 2012 - 8:21pm Addthis Both grid-connected and off-grid home renewable energy systems require additional âbalance-of-systemâ equipment. Both grid-connected and off-grid home renewable energy systems require additional "balance-of-system" equipment. How does it work? With a stand-alone system, depending on your needs, balance-of-system equipment could account for half of your total system costs. For both stand-alone and grid-connect systems, you will need power conditioning equipment, safety equipment, and meters and instrumentation. For stand-alone systems, you will also want batteries and charge controllers.
NETL: Gasification Systems - Syngas Processing Systems
Syngas Processing Systems Syngas Processing Systems Gasification Systems Syngas Processing Systems The various downstream uses of syngas require that most of the contaminants present in raw syngas be removed to very low levels prior to use. Many of these contaminants can contribute to erosion, corrosion, and loss of strength in gas turbine components, and can act as poisons to the catalysts often used in syngas conversion and utilization processes. These same contaminants include or result in regulated air pollutants such as SOx, NOx, particulates, and mercury and other trace metals, which must be removed to increasingly low levels to meet stringent regulatory limits on air emissions. Conventional methods for removing sulfur and other contaminants from syngas typically rely on chemical or physical absorption processes operating at low temperatures. However, after contaminant removal, the gas has to be reheated prior to its use in a gas turbine or other chemical synthesis process; in the case of downstream hydrogen production, additional steam needs to be added back to the syngas. These process swings adversely impact the plant's thermal efficiency and cost. Techno-economic analysis shows that gas-cleaning processes amenable to higher operating temperatures could significantly reduce this efficiency loss and improve the gasification plant's commercial viability. It is also critical that, while improving efficiency and reducing cost, the gas cleaning removes a wide variety of coal contaminants (including hydrogen sulfide, ammonia, hydrogen chloride, and carbonyl sulfide, as well as various forms of trace metals, including arsenic, mercury, selenium, and cadmium) to extremely low levels. Accordingly, the R&D approach in this area focuses on the development of high-efficiency processes that operate at moderate to high temperatures and provide multi-contaminant control to meet the highest environmental standards.
Business System Management Review
P-004 Business System Management Review Process 11_0304Page 1 of 7 P-004 Business System Management Review Process 11_0304Page 1 of 7 EOTA - Business Process Document Title: Business System Management Review Process Document Number: P-004 Rev 11_0304 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: EOTA Employees Referenced Document(s): F-009, Business System Management Review Template P-004 Business System Management Review Process 11_0304Page 2 of 7 Revision History: Rev. Description of Change A Initial Release 08_0414 Corrective Actions, Preventive Actions, and Improvement Opportunity 09_1124 Edited document for clarity and to better fit the process in use. Added requirement to provide management with
Basic fluid system trainer
This invention, a trainer mounted and housed within a mobile console, is used to teach and reinforce fluid principles to students. The system trainer has two centrifugal pumps, each driven by a corresponding two-speed electric motor. The motors are controlled by motor controllers for operating the pumps to circulate the fluid stored within a supply tank through a closed system. The pumps may be connected in series or in parallel. A number of valves are also included within the system to effect different flow paths for the fluid. In addition, temperature and pressure sensing instruments are installed throughout the closed system for measuring the characteristics of the fluid, as it passes through the different valves and pumps. These measurements are indicated on a front panel mounted to the console, as a teaching aid, to allow the students to observe the characteristics of the system.
Semans, J.P.; Johnson, P.G.; LeBoeuf, R.F. Jr.; Kromka, J.A.; Goron, R.H.; Hay, G.D.
Electrochemical thermodynamic measurement system
The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy storage and conversion systems. Systems and methods of the present invention are configured for simultaneously collecting a suite of measurements characterizing a plurality of interconnected electrochemical and thermodynamic parameters relating to the electrode reaction state of advancement, voltage and temperature. Enhanced sensitivity provided by the present methods and systems combined with measurement conditions that reflect thermodynamically stabilized electrode conditions allow very accurate measurement of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and electrochemical systems, such as the energy, power density, current rate and the cycle life of an electrochemical cell.
Reynier, Yvan (Meylan, FR); Yazami, Rachid (Los Angeles, CA); Fultz, Brent T. (Pasadena, CA)
CEBAF cryogenic system
The CEBAF cryogenic system consists of 3 refrigeration systems: Cryogenic Test Facility (CTF), Central Helium Liquefier (CHL), and End Station Refrigerator (ESR). CHL is the main cryogenic system for CEBAF, consisting of a 4.8 kW, 2.0 K refrigerator and transfer line system to supply 2.0 K and 12 kW of 50 K shield refrigeration for the Linac cavity cryostats and 10 g/s of liquid for the end stations. This paper describes the 9-year effort to commission these systems, concentrating on CHL with the cold compressors. The cold compressors are a cold vacuum pump with an inlet temperature of 3 K which use magnetic bearings, thereby eliminating the possibility of air leaks into the subatmospheric He.
Transportation System Requirements Document
This Transportation System Requirements Document (Trans-SRD) describes the functions to be performed by and the technical requirements for the Transportation System to transport spent nuclear fuel (SNF) and high-level radioactive waste (HLW) from Purchaser and Producer sites to a Civilian Radioactive Waste Management System (CRWMS) site, and between CRWMS sites. The purpose of this document is to define the system-level requirements for Transportation consistent with the CRWMS Requirement Document (CRD). These requirements include design and operations requirements to the extent they impact on the development of the physical segments of Transportation. The document also presents an overall description of Transportation, its functions, its segments, and the requirements allocated to the segments and the system-level interfaces with Transportation. The interface identification and description are published in the CRWMS Interface Specification.
Data acquisition system
A data acquisition circuit for a particle detection system that allows for time tagging of particles detected by the system. The particle detection system screens out background noise and discriminate between hits from scattered and unscattered particles. The detection system can also be adapted to detect a wide variety of particle types. The detection system utilizes a particle detection pixel array, each pixel containing a back-biased PIN diode, and a data acquisition pixel array. Each pixel in the particle detection pixel array is in electrical contact with a pixel in the data acquisition pixel array. In response to a particle hit, the affected PIN diodes generate a current, which is detected by the corresponding data acquisition pixels. This current is integrated to produce a voltage across a capacitor, the voltage being related to the amount of energy deposited in the pixel by the particle. The current is also used to trigger a read of the pixel hit by the particle.
Shapiro, Stephen L. (14228 Amherst Ct., Los Altos Hills, CA 94022); Mani, Sudhindra (1618 17th St., Sacramento, CA 95814); Atlas, Eugene L. (440 De Anza Ct., Oceanside, CA 92057); Cords, Dieter H. W. (526 Cuesta Real, La Honda, CA 94020); Holbrook, Britt (4540 Varsity Ct., Sacramento, CA 95841)
Adsorption Refrigeration System
Adsorption refrigeration is an environmentally friendly cooling technology which could be driven by recovered waste heat or low-grade heat such as solar energy. In comparison with absorption system, an adsorption system has no problems such as corrosion at high temperature and salt crystallization. In comparison with vapor compression refrigeration system, it has the advantages of simple control, no moving parts and less noise. This paper introduces the basic theory of adsorption cycle as well as the advanced adsorption cycles such as heat and mass recovery cycle, thermal wave cycle and convection thermal wave cycle. The types, characteristics, advantages and drawbacks of different adsorbents used in adsorption refrigeration systems are also summarized. This article will increase the awareness of this emerging cooling technology among the HVAC engineers and help them select appropriate adsorption systems in energy-efficient building design.
Wang, Kai [ORNL; Vineyard, Edward Allan [ORNL
A trainer, mounted and housed within a mobile console, is used to teach and reinforce fluid principles to students. The system trainer has two centrifugal pumps, each driven by a corresponding two-speed electric motor. The motors are controlled by motor controllers for operating the pumps to circulate the fluid stored within a supply tank through a closed system. The pumps may be connected in series or in parallel. A number of valves are also included within the system to effect different flow paths for the fluid. In addition, temperature and pressure sensing instruments are installed throughout the closed system for measuring the characteristics of the fluid, as it passes through the different valves and pumps. These measurements are indicated on a front panel mounted to the console, as a teaching aid, to allow the students to observe the characteristics of the system.
Semans, Joseph P. (Uniontown, PA); Johnson, Peter G. (Pittsburgh, PA); LeBoeuf, Jr., Robert F. (Clairton, PA); Kromka, Joseph A. (Idaho Falls, ID); Goron, Ronald H. (Connellsville, PA); Hay, George D. (Venetia, PA)
Traction Drive Systems Breakout
Traction Drive Systems Breakout Traction Drive Systems Breakout John M. Miller, PhD, PE, F.IEEE, F.SAE Oak Ridge National Laboratory Facilitator July 24, 2012 EV Everywhere Grand Challenge Vehicle Technologies Program - Advanced Power Electronics and Electric Motors eere.energy.gov EV Everywhere Traction Drive System * DOE goals for Electric Traction Drive System (TDS) innovations must be disruptive innovation focused to meet the CY2022 price target ($20,000 $25,000) for a mid-sized 5 passenger sedan having 5 year simple payback. Enhanced Efficiency Reduced Cost Traction Drive System EETT Roadmap: "Therefore, research is needed to develop technologies that are less expensive and, at the same time, smaller, lighter, more efficient, and equally reliable as conventional automotive technologies. "
Safety System Oversight
Safety System Oversight Safety System Oversight Office of Nuclear Safety Home Safety System Oversight Home Annual SSO/FR Workshop DOE Safety Links › ORPS Info › Operating Experience Summary › DOE Lessons Learned › Accident Investigation Program Assessment Tools › SSO CRADS Subject Matter Links General Program Information › Program Mission Statement › SSO Program Description › SSO Annual Award Program › SSO Annual Award › SSO Steering Committee › SSO Program Assessment CRAD SSO Logo Items Site Leads and Steering Committee Archive Facility Representative Contact Us HSS Logo SSO SSO Program News Congratulations to Ronnie L. Alderson of Nevada Field Office, the Winner of the 2012 Safety System Oversight Annual Award! 2012 Safety System Oversight Annual Award Nominees SSO Staffing Analysis
Human-system Interfaces for Automatic Systems
Automation is ubiquitous in modern complex systems, and commercial nuclear- power plants are no exception. Automation is applied to a wide range of functions including monitoring and detection, situation assessment, response planning, and response implementation. Automation has become a 'team player' supporting personnel in nearly all aspects of system operation. In light of its increasing use and importance in new- and future-plants, guidance is needed to conduct safety reviews of the operator's interface with automation. The objective of this research was to develop such guidance. We first characterized the important HFE aspects of automation, including six dimensions: levels, functions, processes, modes, flexibility, and reliability. Next, we reviewed literature on the effects of all of these aspects of automation on human performance, and on the design of human-system interfaces (HSIs). Then, we used this technical basis established from the literature to identify general principles for human-automation interaction and to develop review guidelines. The guidelines consist of the following seven topics: automation displays, interaction and control, automation modes, automation levels, adaptive automation, error tolerance and failure management, and HSI integration. In addition, our study identified several topics for additional research.
OHara, J.M.; Higgins,J. (BNL); Fleger, S.; Barnes V. (NRC)
Cognition and Collaboration Systems Group
... to fully autonomous behaviors; develop modeling and simulation techniques for intelligent systems; and enable intelligent cyber-physical systems. ...
Advanced Integrated Systems Technology Development
Research Energy Systems Integration Environmentallyenergy use, combined with the capability of the BMS system, including alarms to identify anomalies. Integration
The web of system performance
Because information system performance is multidimensional, specialist theories of performance dimensions must be integrated into a model of system design.
Brian Whitworth; Jerry Fjermestad; Edward Mahinda
Identity Management Systems Program Homepage
Identity Management Systems Program. ... Identity management systems are responsible for the creation, use, and termination of electronic identities. ...
System Testing using UML Models
Coverage of system states during system testing is a nontrivial problem. It is because the number of system states is usually very large, and system developers often do not construct system state model. In this paper, we propose a method to design system ...
Monalisa Sarma; Rajib Mall
Systems Integration Methodology
A multi-disciplinary team led by the Advanced Power and Energy Program (APEP) of the University of California at Irvine is defining the system engineering issues associated with the integration of key components and subsystems into power plant systems that meet performance and emission goals of VISION 21. The myriad of fuels, fuel processing, power generation, and emission control technologies are narrowed down to selected scenarios by a screening analysis to identify those combinations that have the potential to achieve the VISION 21 goals consisting of 60% efficiency (HHV) for coal based systems and 75% efficiency (LHV) for gas-based systems. The selected promising cycle scenarios are then analyzed in detail to develop the performance and costs for each. The methodology used in arriving at these promising cases and the preliminary results of the cycle analyses are presented. The technology levels considered are based on projected technical and manufacturing advances being made in industry and on advances identified in current and future government supported research such as the Clean Coal Program, Combustion 2000 (LEBS and HIPPS), Advanced Turbine Systems program, Low-Cost Advanced Fuel Cell programs, and the Flexible Gas Turbine Systems program. Examples of systems included in these advanced cycles are solid oxide and molten carbonate fuel cells, advanced gas turbines, ion transport membrane separation and hydrogen-oxygen combustion.
Samuelsen, Scott; Rao, Ashok
Battery management system
A battery management system is described, comprising: a main battery; main battery charging system means coupled to the main battery for charging the main battery during operation of the main battery charging system means; at least one auxiliary battery; primary switching means for coupling the auxiliary battery to a parallel configuration with the main battery charging system means and with the main battery, where upon both the main battery and the auxiliary battery are charged by the main battery charging system means, the primary switching means also being operable to decouple the auxiliary battery from the parallel configuration; and sensing means coupled to the primary switching means and operable to sense presence or absence of charging current from the main battery charging system means to the main battery, the sensing means being operable to activate the switching means for coupling the auxiliary battery into the parallel configuration during presence of the charging current, wherein the main battery charging system provides a charging signal to the main battery having an alternating current component, and wherein the sensing means includes transformer means coupled to the charging signal for inducing a voltage, the voltage being applied to a switching circuit of the switching means.
Albright, C.D.
Advanced turbine systems program
In accordance with the goals of the DOE program, improvements in the gas turbine are the primary focus of Allison activity during Phase I. To this end Allison conducted a survey of potentially applicable gas turbine cycles and selected the advanced combined cycle as reference system. Extensive analysis of two versions of the advanced combined cycle was performed against the requirement for a 60% thermal efficiency (LHV) utility-sized, natural gas fired system. This analysis resulted in technology requirements for this system. Additional analysis determined emissions potential for the system, established a coal-fueled derivative system and a commercialization plan. This report deals with the technical requirements for a system that meets the thermal efficiency goal. Allison initially investigated four basic thermodynamic cycles: Humid air turbine, intercalate-recuperated systems, advanced combined cycle, chemically recuperated cycle. Our survey and cycle analysis indicated that au had the potential of reaching 60% thermal efficiency. We also concluded that engine hot section technology would be a critical technology regardless of which cycle was chosen. Based on this result Allison chose to concentrate on the advanced combined cycle. This cycle is well known and understood by the utility turbine user community and is therefore likely to be acceptable to users.
Wilkes, C.; Mukavetz, D.W.; Knickerbocker, T.K.; Ali, S.A.
A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.
Frangioni, John V. (Wayland, MA)
Sustainable Acquisition Coding System | Department of Energy
Acquisition Coding System Sustainable Acquisition Coding System Sustainable Acquisition Coding System Sustainable Acquisition Coding System More Documents & Publications Policy...
The RHIC injection system has to transport beam from the AGS-to-RHIC transfer line onto the closed orbits of the RHIC Blue and Yellow rings. This task can be divided into three problems. First, the beam has to be injected into either ring. Second, once injected the beam needs to be transported around the ring for one turn. Third, the orbit must be closed and coherent beam oscillations around the closed orbit should be minimized. We describe our solutions for these problems and report on system tests conducted during the RHIC Sextant test performed in 1997. The system will be fully commissioned in 1999.
An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.
Grossman, Gershon (Oak Ridge, TN); Perez-Blanco, Horacio (Knoxville, TN)
Downhole telemetry system
A downhole telemetry system is described for optically communicating to the surface operating parameters of a drill bit during ongoing drilling operations. The downhole telemetry system includes sensors mounted with a drill bit for monitoring at least one operating parameter of the drill bit and generating a signal representative thereof. The downhole telemetry system includes means for transforming and optically communicating the signal to the surface as well as means at the surface for producing a visual display of the optically communicated operating parameters of the drill bit. 7 figs.
Normann, R.A.; Kadlec, E.R.
Computerized procedures system
An online data driven computerized procedures system that guides an operator through a complex process facility's operating procedures. The system monitors plant data, processes the data and then, based upon this processing, presents the status of the current procedure step and/or substep to the operator. The system supports multiple users and a single procedure definition supports several interface formats that can be tailored to the individual user. Layered security controls access privileges and revisions are version controlled. The procedures run on a server that is platform independent of the user workstations that the server interfaces with and the user interface supports diverse procedural views.
Lipner, Melvin H. (Monroeville, PA); Mundy, Roger A. (North Huntingdon, PA); Franusich, Michael D. (Upper St. Clair, PA)
Executive information system
The Executive Information System (EIS) is a computer-based information handling system. The system has been designed and implemented for Energy Conversion and Utilization Technologies to allow program managers easy access and tracking of certain types of reporting at various levels of management interaction, to simplify the handling of program-related data, and to streamline the preparation of reporting documents and responses to requests for information from the program. The EIS is especially useful in assisting DOE program managers in the routine dissemination of reports and information. The characteristics of each component of the EIS are discussed. A user's guide to the EIS is included in this report.
Vitullo, M.; Winter, C.; Johnson, D.R.
Advanced Monitoring systems initiative
The Advanced Monitoring Systems Initiative (AMSI) actively searches for promising technologies and aggressively moves them from the research bench into DOE/NNSA end-user applications. There is a large unfulfilled need for an active element that reaches out to identify and recruit emerging sensor technologies into the test and evaluation function. Sensor research is ubiquitous, with the seeds of many novel concepts originating in the university systems, but at present these novel concepts do not move quickly and efficiently into real test environments. AMSI is a widely recognized, self-sustaining ''business'' accelerating the selection, development, testing, evaluation, and deployment of advanced monitoring systems and components.
R.J. Venedam; E.O. Hohman; C.F. Lohrstorfer; S.J. Weeks; J.B. Jones; W.J. Haas
Shock destruction armor system
A shock destruction armor system is constructed and arranged to destroy the force of impact of a projectile by shock hydrodynamics. The armor system is designed to comprise a plurality of superimposed armor plates each preferably having a thickness less than five times the projectile's diameter and are preferably separated one-from-another by a distance at least equal to one-half of the projectile's diameter. The armor plates are effective to hydrodynamically and sequentially destroy the projectile. The armor system is particularly adapted for use on various military vehicles, such as tanks, aircraft and ships.
Froeschner, Kenneth E. (Livermore, CA)
Cody hydrothermal system
The hot springs of Colter's Hell are the surface manifestations of a much larger hydothermal system. That system has been studied to define its extent, maximum temperature, and mechanism of operation. The study area covers 2700 km/sup 2/ (1040 mi/sup 2/) in northwest Wyoming. Research and field work included locating and sampling the hot springs, geologic mapping, thermal logging of available wells, measuring thermal conductivities, analyzing over 200 oil and gas well bottom-hole temperatures, and compiling and analyzing hydrologic data. These data were used to generate a model for the hydrothermal system.
Heasler, H.P.
Power management system
A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.
Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)
Photovoltaic system reliability
This paper discusses the reliability of several photovoltaic projects including SMUD`s PV Pioneer project, various projects monitored by Ascension Technology, and the Colorado Parks project. System times-to-failure range from 1 to 16 years, and maintenance costs range from 1 to 16 cents per kilowatt-hour. Factors contributing to the reliability of these systems are discussed, and practices are recommended that can be applied to future projects. This paper also discusses the methodology used to collect and analyze PV system reliability data.
Maish, A.B.; Atcitty, C. [Sandia National Labs., NM (United States); Greenberg, D. [Ascension Technology, Inc., Lincoln Center, MA (United States)] [and others
Distributed Optimization System
A search system and method for controlling multiple agents to optimize an objective using distributed sensing and cooperative control. The search agent can be one or more physical agents, such as a robot, and can be software agents for searching cyberspace. The objective can be: chemical sources, temperature sources, radiation sources, light sources, evaders, trespassers, explosive sources, time dependent sources, time independent sources, function surfaces, maximization points, minimization points, and optimal control of a system such as a communication system, an economy, a crane, and a multi-processor computer.
Hurtado, John E. (Albuquerque, NM); Dohrmann, Clark R. (Albuquerque, NM); Robinett, III, Rush D. (Tijeras, NM)
Collector: storage wall systems
Passive Trombe wall systems require massive masonry walls to minimize large temperature swings and movable night insulation to prevent excessive night heat losses. As a solar energy collection system, Trombe wall systems have low efficiencies because of the nature of the wall and, if auxiliary heat is needed, because of absorption of this heat. Separation of collector and storage functions markedly improves the efficiency. A simple fiberglass absorber can provide high efficiency while phase change storage provides a compact storage unit. The need for movable insulation is obviated.
Boardman, H.
Solar energy system
A solar energy system is described for selectively absorbing or reflecting radiant energy entering through a window of a structure, the system comprising a window drape having a decorative side and a back side, and a removable liner adjacent the backside of the window drape. At least one side of the liner or window drape backside is a radiant energy reflecting surface and another of said sides is a radiant energy absorbing surface. Thus, depending upon the season of the year, the system may be arranged to selectively provide the appropriate surface to optimize or minimize the radiant energy maintained within the structure.
Mole, R.A.
Internet Banking System Prototype
Internet Banking System refers to systems that enable bank customers to access accounts and general information on bank products and services through a personal computer or other intelligent device. Internet banking products and services can include detailed account information for corporate customers as well as account summery and transfer money. Ultimately, the products and services obtained through Internet Banking may mirror products and services offered through other bank delivery channels. In this paper, Internet Banking System Prototype has been proposed in order to illustrate the services which is provided by the Bank online services.
Alnaqeib, Rami; Jalab, Hamid A; Zaidan, M A; Hmood, Ali K
Photovoltaic lighting system performance
The performance of 21 PV-powered low pressure sodium lighting systems on a multi-use has been documented in this paper. Specific areas for evaluation include the vandal resistant PV modules, constant voltage and on/off PV charge controllers, flooded deep-cycle lead-antimony and valve regulated lead-acid (VLRA) gel batteries, and low pressure sodium ballasts and lights. The PV lighting system maintenance intervals and lessons learned have been documented over the past 2.5 years. The above performance data has shown that with careful hardware selection, installation, and maintenance intervals the PV lighting systems will operate reliably.
Harrington, S.R.; Hund, T.D.
Closing the Gap in Control System Implementations
Control Systems . . . . . . . . . . . . . . . . . .Continuous-Time Linear Control Systems . . . . .Discrete-Time Linear Control Systems . . . . . . . . . . .
Saha, Indranil
Hydrothermal System | Open Energy Information
Open Energy Info (EERE)
Hydrothermal System Hydrothermal System (Redirected from Hydrothermal Systems) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Systems Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps Dictionary.png Hydrothermal Systems: A hydrothermal system is one that included fluid, heat, and permeability in a naturally occurring geological formation for the production of electricity. Other definitions:Wikipedia Reegle Geothermal production well at Imperial Valley, California. The drilling of production wells, such as this one in southern California, results in
Solar heating system
An improved solar heating system in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75.degree. to 180.degree. F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing and releasing heat for distribution.
Schreyer, James M. (Oak Ridge, TN); Dorsey, George F. (Concord, TN)
Improved solar heating systems
An improved solar heating system is described in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75 to 180/sup 0/F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing ad releasing heat for distribution.
Schreyer, J.M.; Dorsey, G.F.
Sustainable Electrical Energy Systems
Sustainable Electrical Energy Systems Speaker(s): Mark O'Malley Date: June 27, 2012 - 12:00pm Location: 90-1099 Seminar HostPoint of Contact: Sila Kiliccote The process of making...
ALS superbend magnet system
ALS Superbend Magnet System J. Zbasnik � , S. T. Wang �� ,of a High-Field Magnet for the ALS,� Transactions AppliedRefrigeration options for the ALS Superbend dipole magnets�,
Data driven health system
Effective use of data is believed to be the key to address systemic inefficiencies in health innovation and delivery, and to significantly enhance value creation for patients and all stakeholders. However, there is no ...
Rosen Ceruolo, Melissa Beth
Computer memory management system
A computer memory management system utilizing a memory structure system of "intelligent" pointers in which information related to the use status of the memory structure is designed into the pointer. Through this pointer system, The present invention provides essentially automatic memory management (often referred to as garbage collection) by allowing relationships between objects to have definite memory management behavior by use of coding protocol which describes when relationships should be maintained and when the relationships should be broken. In one aspect, the present invention system allows automatic breaking of strong links to facilitate object garbage collection, coupled with relationship adjectives which define deletion of associated objects. In another aspect, The present invention includes simple-to-use infinite undo/redo functionality in that it has the capability, through a simple function call, to undo all of the changes made to a data model since the previous `valid state` was noted.
Kirk, III, Whitson John (Greenwood, MO)
Solar system fault detection
A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.
Farrington, R.B.; Pruett, J.C. Jr.
Systems Engineering and Integration
The fuel cycle in use today in the United States faces challenges in achieving the goals of sustainability. While used fuel is safely stored at reactor sites, the development of a system to manage...
Advanced synchronous luminescence system
A method and apparatus for determining the condition of tissue or otherwise making chemical identifications includes exposing the sample to a light source, and using a synchronous luminescence system to produce a spectrum that can be analyzed for tissue condition.
Vo-Dinh, Tuan (Knoxville, TN)
Communal Polyethylene Biogas Systems.
?? In Lembang, a farming community on western Java, family-sized, plug-flow, polyethylene biogas systems fed with cow dung, are being used as an integrated solution� (more)
Stoddard, Isak
Desalination Systems Developers MIT BARC IMB Power Solar PVcells Solar PV cells 10 MW solar farm Solar pond FranciscoSolar Energy: PEC vs. PV Solar energy is just as important
Dirac File Systems
http:help.nersc.gov firstname.lastname@example.com 1-800-66-NERSC, option 3 or 510-486-8611 Home For Users Computational Systems Dirac File storage File Storage Disk Quota...
Protection Program, DOE Order 450.1A (June 4, 3. DOE Oand Health Reporting, DOE Order 231.1A (1995, as amended).Emergency Management System, DOE Order 151.1B (October 29,
3) environmental management programs, (4) training, (5)Management Programs3-5 Structure and Responsibility.3-6 Training,Management System Plan Program Elements Additional information regarding EMS training
Pupillary efficient lighting system
A lighting system having at least two independent lighting subsystems each with a different ratio of scotopic illumination to photopic illumination. The radiant energy in the visible region of the spectrum of the lighting subsystems can be adjusted relative to each other so that the total scotopic illumination of the combined system and the total photopic illumination of the combined system can be varied independently. The dilation or contraction of the pupil of an eye is controlled by the level of scotopic illumination and because the scotopic and photopic illumination can be separately controlled, the system allows the pupil size to be varied independently of the level of photopic illumination. Hence, the vision process can be improved for a given level of photopic illumination.
Berman, Samuel M. (San Francisco, CA); Jewett, Don L. (Mill Valley, CA)
Variable buoyancy system metric
Over the past 20 years, underwater vehicle technology has undergone drastic improvements, and vehicles are quickly gaining popularity as a tool for numerous oceanographic tasks. Systems used on the vehicle to alter buoyancy, ...
Jensen, Harold Franklin
RF & Microwave Systems Group
Solutions to Challenging Problems · Robust Communications in Extreme Environments · Tagging, Tracking-mail: email@example.com Core R&D Area Tagging, Tracking, and Locating · Theater Positioning Systems
Freeze resistant buoy system
A freeze resistant buoy system includes a tail-tube buoy having a thermally insulated section disposed predominantly above a waterline, and a thermo-siphon disposed predominantly below the waterline.
Hill, David E. (Knoxville, TN); Rodriguez, Jr., Miguel (Oak Ridge, TN); Greenbaum, Elias (Knoxville, TN); Klett, James W. (Knoxville, TN)
Foundation for system security
We provide a coherent framework for the design and analysis of secure systems. Our framework is inspired by Lawrence Lessig's modalities of control, by Niklas Luhmann's theory of trust, by existing models of information security, and by existing models ...
Clark Thomborson
Cogeneration System Design Options
The commercial or industrial firm contemplating cogeneration at its facilities faces numerous basic design choices. The possibilities exist for fueling the system with waste materials, gas, oil, coal, or other combustibles. The choice of boiler, engine, turbine, generator, switchgear, and balance of plant can be bewildering. This paper presents an overview and a systematic approach to the basic system alternatives and attributes. The presentation illustrates how these options match the electrical and thermal needs of a firm, and what kind of operating economics and system paybacks have been achieved. Several cogeneration options are also illustrated to eliminate the problems and uncertainties of dealing with uninterested or non-cooperative utilities, as well as to minimize system costs.
Gilbert, J. S.
Tandem mobile robot system
A robotic vehicle system for terrain navigation mobility provides a way to climb stairs, cross crevices, and navigate across difficult terrain by coupling two or more mobile robots with a coupling device and controlling the robots cooperatively in tandem.
Buttz, James H. (Albuquerque, NM); Shirey, David L. (Albuquerque, NM); Hayward, David R. (Albuquerque, NM)
Secondary fuel delivery system
A secondary fuel delivery system for delivering a secondary stream of fuel and/or diluent to a secondary combustion zone located in the transition piece of a combustion engine, downstream of the engine primary combustion region is disclosed. The system includes a manifold formed integral to, and surrounding a portion of, the transition piece, a manifold inlet port, and a collection of injection nozzles. A flowsleeve augments fuel/diluent flow velocity and improves the system cooling effectiveness. Passive cooling elements, including effusion cooling holes located within the transition boundary and thermal-stress-dissipating gaps that resist thermal stress accumulation, provide supplemental heat dissipation in key areas. The system delivers a secondary fuel/diluent mixture to a secondary combustion zone located along the length of the transition piece, while reducing the impact of elevated vibration levels found within the transition piece and avoiding the heat dissipation difficulties often associated with traditional vibration reduction methods.
Parker, David M. (Oviedo, FL); Cai, Weidong (Oviedo, FL); Garan, Daniel W. (Orlando, FL); Harris, Arthur J. (Orlando, FL)
Modular tokamak magnetic system
A modular tokamak system comprised of a plurality of interlocking modules. Each module is comprised of a vacuum vessel section, a toroidal field coil, modular saddle coils which generate a poloidal magnetic field and ohmic heating coils.
Yang, Tien-Fang
Farrington, Robert B. (Wheatridge, CO); Pruett, Jr., James C. (Lakewood, CO)
Relay contact monitoring system
A switching system for switching on and off heating and air conditioning units in an environmental control system. The switching system includes a thermostat and a relay conductively coupled to the thermostat. The relay has a contact, which is responsive to a change signal for changing its position. The system further includes a programmable monitor having predetermined positions stored in a memory. The monitor is conductively coupled to the contact and to the thermostat for continually determining the position of the contact, and for sending a change signal to the relay for switching the position of the contact, as needed, to be in conformance with a predetermined position stored in the memory. 3 figs.
Mehta, V.
Architectures for cooperative systems
The primary perspective which the author brings to this topic comes from working with the design and implementation of high level CASE tools. The interest which I have in software architectures for cooperative systems stems from considering the problem ...
Brian Hanley
A lighting system having at least two independent lighting subsystems each with a different ratio of scotopic illumination to photopic illumination. The radiant energy in the visible region of the spectrum of the lighting subsystems can be adjusted relative to each other so that the total scotopic illumination of the combined system and the total photopic illumination of the combined system can be varied independently. The dilation or contraction of the pupil of an eye is controlled by the level of scotopic illumination and because the scotopic and photopic illumination can be separately controlled, the system allows the pupil size to be varied independently of the level of photopic illumination. Hence, the vision process can be improved for a given level of photopic illumination. 5 figs.
Berman, S.M.; Jewett, D.L.
Stochastic Graph Transformation Systems
In distributed and mobile systems with volatile bandwidth and fragile connectivity, non-functional aspects like performance and reliability become more and more important. To formalize, measure, and predict such properties, stochastic methods are required. ...
Reiko Heckel; Georgios Lajios; Sebastian Menge
Genomics and Systems Biology Genomics and Systems Biology Genomics and Systems Biology Los Alamos scientists perform research in functional genomics and structural genomics, and applications for such work cover diverse fields such as energy, agriculture, and environmental cleanup. Get Expertise Babetta Marrone Biofuels Program Manager Email Cheryl Kuske DOE BER Biological System Science Division Program Manager Email Chris Detter Emerging Threats Program Manager: Email Rebecca McDonald Bioscience Communications Email "We were asked to build a rocket ship," said developer Joel Berendzen, "but instead we built a 10,000 mph motorcycle." - Sequedex team LANL leads the world in computational finishing of microbial genomes Protein research Read caption + In 2013, Los Alamos scientist Richard Sayre and his team genetically
NETL: Gasification Systems - Solicitations
Shelf > Solicitations Shelf > Solicitations Gasification Systems Solicitations All NETL Solicitations / Funding Opportunity Announcements (FOA) Gasification RSS Feed NETL RSS Feeds: List of available NETL RSS feeds. Business & Solicitations RSS: Subscribe to this to be notified of all NETL solicitations or FOA postings. Gasification RSS: Subscribe to this to be notified of Gasification news, solicitations and FOA postings. Business Alert Notification System Official notification is available through the Business Alert Notification System. *These notifications are provided as a courtesy and there may be a delay between the opportunity announcement and the arrival of the alert. SOLICITATION TITLE / AWARDS ANNOUNCEMENT PROJECT PAGE(S) 12.11.13: Fossil Energy's Request for Information DE-FOA-0001054; titled "Novel Crosscutting Research and Development to Support Advanced Energy Systems." Application due date is January 15, 2014. Applications and/or instructions can be found with this Funding Opportunity Announcement on FedConnect.
Integrating Management Systems
Mission Execution by Mission Execution by Integrating our Management Systems Integrating our Management Systems 1 W e e k l y O p e r a t i o n s M e e t i n g N o v e m b e r 1 , 2 0 1 1 M i c h a e l J . W e i s Pulling the Pieces Together for Improving DOE Management to Enable Mission Execution 2 Process changes Process changes Behavioral changes Behavioral changes System changes System changes Process Change Approach Strengthening and Expediting Decision Making 3 Proposed Outcomes Horizontal Integration Incoming DOE Business Crosscutting Issues (i.e. NLDC input) Hi-level Roadblocks Operations Management Council Associate Deputy Secretary Collaborative Action Process Chief Operating Officer Weekly Operations Council (OMC) Super 8 Secretary (ADS) (CAP) Board (COOB) p Meeting Endorsement / Commitment Super 8 US Meetings COO Meetings
Securing Control Systems Modems
Recommended Practice for Securing Recommended Practice for Securing Control System Modems January 2008 iii ABSTRACT This paper addresses an often overlooked "backdoor" into critical infrastructure control systems created by modem connections. A modem's connection to the public telephone system is similar to a corporate network connection to the Internet. By tracing typical attack paths into the system, this paper provides the reader with an analysis of the problem and then guides the reader through methods to evaluate existing modem security. Following the analysis, a series of methods for securing modems is provided. These methods are correlated to well-known networking security methods. iv ACKNOWLEDGEMENT This document was developed for the U.S. Department of Homeland
Grid Tech Team Grid Tech Team Discussion Summary Electricity Distribution System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Common Themes ...................................................................................................................................... 5 Discussion Topic Tables ............................................................................................................................. 8
PDSF's Eliza File Systems
Eliza File Systems Eliza File Systems Eliza File Systems Storage at PDSF is organized by group and all partitions are exported to all the nodes in the cluster. Please note that files on these file systems are not backed up. It is the responsibility of users to back up their files themselves as necessary. Over the years at PDSF there have been incidents which resulted in a loss of data from disk, often related to aging hardware. Note that the way to display the SGE io units on the command line is "qconf -se global". Disk Vault Experiments SGE io units Disk Space (TB) Directories eliza1 Atlas 400 35 atlas eliza2 Atlas 200 35 atlas eliza5 Cuore, Kamland 400 34 cuore kamland eliza6 Alice, RNC, Star 400 34 alice rnc star eliza7 Dayabay 200 24 dayabay icecube
Waste receiving and processing plant control system; system design description
The Plant Control System (PCS) is a heterogeneous computer system composed of numerous sub-systems. The PCS represents every major computer system that is used to support operation of the Waste Receiving and Processing (WRAP) facility. This document, the System Design Description (PCS SDD), includes several chapters and appendices. Each chapter is devoted to a separate PCS sub-system. Typically, each chapter includes an overview description of the system, a list of associated documents related to operation of that system, and a detailed description of relevant system features. Each appendice provides configuration information for selected PCS sub-systems. The appendices are designed as separate sections to assist in maintaining this document due to frequent changes in system configurations. This document is intended to serve as the primary reference for configuration of PCS computer systems. The use of this document is further described in the WRAP System Configuration Management Plan, WMH-350, Section 4.1.
Hybrid Cooling Systems
Water consumption by power plants has become an increasingly contentious siting issue. In nearly all fossil-fired and nuclear plants, water for plant cooling is by far the greatest water requirement. Therefore, the use of water-conserving cooling systems such as dry or hybrid cooling is receiving increasing attention. This technology overview from the Electric Power Research Institute (EPRI) provides a brief introduction to hybrid cooling systems. As defined in the report, the term "hybrid cooling" refer...
Thermoelectrochemical system and method
A thermal electrochemical system is described in which an electrical current is generated between a cathode immersed in a concentrated aqueous solution of phosphoric acid and an anode immersed in a molten salt solution of ammonium phosphate and monohydric ammonium phosphate. Reactants consumed at the electrodes during the electrochemical reaction are thermochemically regenerated and recycled to the electrodes to provide continuous operation of the system. 5 figs.
Ludwig, F.A.; Townsend, C.W.; Eliash, B.M.
System Compatibility Guidebook 2003
Electromagnetic compatibility between electrical equipment and its operating environment has been an ongoing challenge in the evolution of the electric power system. Today, new digital-electronic technologies and power electronics devices provide perhaps the most formidable challenges to the efforts of the utility industry, manufacturers, and end users to achieve compatibility. This CD-ROM provides an updated compilation of nonproprietary test results from work conducted since 1993 by EPRI's System Compa...
Load sensing system
A load sensing system inexpensively monitors the weight and temperature of stored nuclear material for long periods of time in widely variable environments. The system can include an electrostatic load cell that encodes weight and temperature into a digital signal which is sent to a remote monitor via a coaxial cable. The same cable is used to supply the load cell with power. When multiple load cells are used, vast
Sohns, Carl W. (Oak Ridge, TN); Nodine, Robert N. (Knoxville, TN); Wallace, Steven Allen (Knoxville, TN)
ORNL integrated forecasting system
This paper describes the integrated system for forecasting electric energy and load. In the system, service area models of electrical energy (kWh) and load distribution (minimum and maximum loads and load duration curve) are linked to a state-level model of electrical energy (kWh). Thus, the service area forecasts are conditional upon the state-level forecasts. Such a linkage reduces considerably the data requirements for modeling service area electricity demand.
Rizy, C.G.
Portable treatment systems study
In developing their Site Treatment Plans (STPs), many of the Department of Energy installations identified some form of portable treatment, to facilitate compliant disposition of select mixed low-level wastestreams. The Environmental Management Office of Science and Technology requested that a systems study be performed to better define the potential role of portable treatment with respect to mixed low-level waste, highlight obstacles to implementation, and identify opportunities for future research and development emphasis. The study was performed by first establishing a representative set of mixed waste, then formulating portable treatment system concepts to meet the required processing needs for these wastes. The portable systems that were conceptualized were evaluated and compared to a fixed centralized treatment alternative. The system evaluations include a life-cycle cost analysis and an assessment of regulatory, institutional, and technical issues associated with the potential use of portable systems. The results of this study show that when all costs are included, there are no significant cost differences between portable systems and fixed systems. However, it is also emphasized that many uncertainties exist that could impact the cost of implementing portable treatment systems. Portable treatment could be made more attractive through private sector implementation, although there is little economic incentive for a commercial vendor to develop small, specialized treatment capabilities with limited applicability. Alternatively, there may also be valid reasons why fixed units cannot be used for some problematic wastestreams. In any event, there are some site-specific problems that still need to be addressed, and there may be some opportunity for research and development to make a positive impact in these areas.
Sherick, M.J.; Schwinkendorf, W.E.; Bechtold, T.E.; Cole, L.T.
Heat transport system
A heat transport system of small size which can be operated in any orientation consists of a coolant loop containing a vaporizable liquid as working fluid and includes in series a vaporizer, a condenser and two one-way valves and a pressurizer connected to the loop between the two valves. The pressurizer may be divided into two chambers by a flexible diaphragm, an inert gas in one chamber acting as a pneumatic spring for the system.
Pierce, Bill L. (Pittsburgh, PA)

subset: commoncrawl