Sample records for networks including hardware

  1. Hardware implementation of a Hamming network

    E-Print Network [OSTI]

    Robinson Gonzalez, Moise?s Emanuel

    1991-01-01T23:59:59.000Z

    many different backgrounds, whereas hardware implementations are predominantly done by scientists with a strong back- ground in physics or engineering. One of the main advantages of artificial neural networks is the massive parallelism...HARDWARE IMPLEMENTATION OF A HAMMING NETWORK A Thesis by MOISES EMANUEL ROBINSON GONZALEZ Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

  2. Algorithms and Hardware for Implementing Artificial Neural Networks Nathan Hower

    E-Print Network [OSTI]

    Algorithms and Hardware for Implementing Artificial Neural Networks Nathan Hower Abstract Complex problems require sophisticated processing techniques. Artificial neural networks are based require a parallel processing approach to be computed at practical speeds. Artificial neural networks

  3. Hardware demonstration of high-speed networks for satellite applications.

    SciTech Connect (OSTI)

    Donaldson, Jonathon W.; Lee, David S.

    2008-09-01T23:59:59.000Z

    This report documents the implementation results of a hardware demonstration utilizing the Serial RapidIO{trademark} and SpaceWire protocols that was funded by Sandia National Laboratories (SNL's) Laboratory Directed Research and Development (LDRD) office. This demonstration was one of the activities in the Modeling and Design of High-Speed Networks for Satellite Applications LDRD. This effort has demonstrated the transport of application layer packets across both RapidIO and SpaceWire networks to a common downlink destination using small topologies comprised of commercial-off-the-shelf and custom devices. The RapidFET and NEX-SRIO debug and verification tools were instrumental in the successful implementation of the RapidIO hardware demonstration. The SpaceWire hardware demonstration successfully demonstrated the transfer and routing of application data packets between multiple nodes and also was able reprogram remote nodes using configuration bitfiles transmitted over the network, a key feature proposed in node-based architectures (NBAs). Although a much larger network (at least 18 to 27 nodes) would be required to fully verify the design for use in a real-world application, this demonstration has shown that both RapidIO and SpaceWire are capable of routing application packets across a network to a common downlink node, illustrating their potential use in real-world NBAs.

  4. Locating hardware faults in a data communications network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

    2010-01-12T23:59:59.000Z

    Hardware faults location in a data communications network of a parallel computer. Such a parallel computer includes a plurality of compute nodes and a data communications network that couples the compute nodes for data communications and organizes the compute node as a tree. Locating hardware faults includes identifying a next compute node as a parent node and a root of a parent test tree, identifying for each child compute node of the parent node a child test tree having the child compute node as root, running a same test suite on the parent test tree and each child test tree, and identifying the parent compute node as having a defective link connected from the parent compute node to a child compute node if the test suite fails on the parent test tree and succeeds on all the child test trees.

  5. Communication in automation, including networking and wireless

    E-Print Network [OSTI]

    Antsaklis, Panos

    Communication in automation, including networking and wireless Nicholas Kottenstette and Panos J and networking in automation is given. Digital communication fundamentals are reviewed and networked control are presented. 1 Introduction 1.1 Why communication is necessary in automated systems Automated systems use

  6. A Hardware Platform for Network Intrusion Detection and Prevention Chris Clark1

    E-Print Network [OSTI]

    Lee, Wenke

    A Hardware Platform for Network Intrusion Detection and Prevention Chris Clark1 , Wenke Lee2, athomas}@cc.gatech.edu Abstract The current generation of centralized network intrusion detection systems that intrusion detection analysis should be distributed to network node IDS (NNIDS) running in hardware

  7. A HARDWARE/SOFTWARE CO-DESIGN APPROACH FOR FACE RECOGNITION BY ARTIFICIAL NEURAL NETWORKS

    E-Print Network [OSTI]

    Areibi, Shawki M

    #12;A HARDWARE/SOFTWARE CO-DESIGN APPROACH FOR FACE RECOGNITION BY ARTIFICIAL NEURAL NETWORKS NETWORKS Xiaoguang Li University of Guelph, 2004 Advisor: Dr. Shawki M. Areibi Artificial Neural Networks Artificial Neural Networks on FPGAs. This work provided a very good beginning to my research. Special thanks

  8. Computer hardware fault administration

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

    2010-09-14T23:59:59.000Z

    Computer hardware fault administration carried out in a parallel computer, where the parallel computer includes a plurality of compute nodes. The compute nodes are coupled for data communications by at least two independent data communications networks, where each data communications network includes data communications links connected to the compute nodes. Typical embodiments carry out hardware fault administration by identifying a location of a defective link in the first data communications network of the parallel computer and routing communications data around the defective link through the second data communications network of the parallel computer.

  9. Hardware/Software Codesign for Embbeded Implementation of Neural Networks

    E-Print Network [OSTI]

    Girau, Bernard

    , Mexico ctorres@inaoep.mx 2 CORTEX team, LORIA-INRIA Lorraine Campus Scientifique, B. P. 239, Vandoeuvre circuits such as Field Programmable Gate Arrays (FPGA) increases at a very fast rate. Their fine-Specific Programmable Cir- cuits) approach that requires a strong hardware expertise. In this paper a high-level design

  10. Energy-Aware Hardware Implementation of Network Coding

    E-Print Network [OSTI]

    Angelopoulos, Georgios

    In the last few years, Network Coding (NC) has been shown to provide several advantages, both in theory and in practice. However, its applicability to battery-operated systems under strict power constraints has not been ...

  11. The NIDS Cluster: Scalable, Stateful Network Intrusion Detection on Commodity Hardware

    SciTech Connect (OSTI)

    Tierney, Brian L; Vallentin, Matthias; Sommer, Robin; Lee, Jason; Leres, Craig; Paxson, Vern; Tierney, Brian

    2007-09-19T23:59:59.000Z

    In this work we present a NIDS cluster as a scalable solution for realizing high-performance, stateful network intrusion detection on commodity hardware. The design addresses three challenges: (i) distributing traffic evenly across an extensible set of analysis nodes in a fashion that minimizes the communication required for coordination, (ii) adapting the NIDS's operation to support coordinating its low-level analysis rather than just aggregating alerts; and (iii) validating that the cluster produces sound results. Prototypes of our NIDS cluster now operate at the Lawrence Berkeley National Laboratory and the University of California at Berkeley. In both environments the clusters greatly enhance the power of the network security monitoring.

  12. Specific Group Hardware

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Group Hardware Specific Group Hardware ALICE palicevo1 The Virtual Organization (VO) server. Serves as gatekeeper for ALICE jobs. It's duties include getting assignments from...

  13. High quality garbage: A neural network plastic sorter in hardware and software

    SciTech Connect (OSTI)

    Stanton, S.L.; Alam, M.K.; Hebner, G.A.

    1993-09-01T23:59:59.000Z

    In order to produce pure polymer streams from post-consumer waste plastics, a quick, accurate and relatively inexpensive method of sorting needs to be implemented. This technology has been demonstrated by using near-infrared spectroscopy reflectance data and neural network classification techniques. Backpropagation neural network routines have been developed to run real-time sortings in the lab, using a laboratory-grade spectrometer. In addition, a new reflectance spectrometer has been developed which is fast enough for commercial use. Initial training and test sets taken with the laboratory instrument show that a network is capable of learning 100% when classifying 5 groups of plastic (HDPE and LDPE combined), and up to 100% when classifying 6 groups. Initial data sets from the new instrument have classified plastics into all seven groups with varying degrees of success. One of the initial networks has been implemented in hardware, for high speed computations, and thus rapid classification. Two neural accelerator systems have been evaluated, one based on the Intel 8017ONX chip, and another on the AT&T ANNA chip.

  14. acid analysis including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nairn, John A. 12 A bottom-up analysis of including aviation within theEU's Emissions Trading Scheme Geosciences Websites Summary: A bottom-up analysis of including aviation...

  15. analysis including quantification: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ausloos 2004-12-31 29 A bottom-up analysis of including aviation within theEU's Emissions Trading Scheme Geosciences Websites Summary: A bottom-up analysis of including aviation...

  16. analysis including plasma: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Assembly 2010 Space Plasmas in the Solar System, including Planetary Magnetospheres (D) Solar Variability, Cosmic Rays and Climate (D21) GEOMAGNETIC ACTIVITY AT HIGH-LATITUDE:...

  17. arch dams including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: insight into the gamut of shallow water waves, including kinematic, diffusion, dynamic, and gravity wavesDam-Breach Flood Wave Propagation Using...

  18. Wireless Sensor Networks : the hardware challenge and the cross-layering opportunity

    E-Print Network [OSTI]

    Ingrand, François

    #12;Target applications for wireless sensor networks Flight test instrumentation Pilot ­ crew;Target applications for wireless sensor networks Wireless flight test instrumentation Long term Low or medium data rate, low power nodes High number of nodes, different kind of sensors

  19. #include #include

    E-Print Network [OSTI]

    Campbell, Andrew T.

    process #12;#include #include pid_t pid = fork(); if (pid () failed */ } else if (pid == 0) { /* parent process */ } else { /* child process */ } #12;thread #12

  20. Hardware Flooding (Preliminary Version)

    E-Print Network [OSTI]

    Kutten, Shay

    speed, this search becomes a bottleneck. There are two approaches to overcoming this bottleneck. The first approach is to implement the search described above directly in very high speed hardware,kutten@watson .ibm.com Abstract Traditional broadcast protocols for the high-speed networks of are inappropriate

  1. A new generic approach for optoelectronic hardware realizations of neural networks models

    SciTech Connect (OSTI)

    Agranat, A.; Neugebauer, C.F.; Yariv, A.

    1988-09-01T23:59:59.000Z

    A new generic approach for realizing neural networks (NN) is presented. The underlying principle of the new approach is to take advantage of the fact that signal processing in silicon is an advanced and mature technology, and to incorporate optics where silicon fails, namely in the interconnectivity problem. The basic idea is described. The system consists of two main subassemblies: a 2D Spatial Light Modulator (SLM) and an integrated circuit to which the authors shall henceforth refer to as the Neural Processor (NP). The synaptic efficacies matrix W is stored in the SLM. Thus by imaging the SLM contents onto an array detector which serves as the input unit of the NP, W is loaded in parallel into the NP. The NP then updates the state of the network in parallel/semiparallel-synchronous/asynchronous manner (depending on the structure of the NP).

  2. #include #include

    E-Print Network [OSTI]

    Poinsot, Laurent

    #include #include //Rappels : "getpid()" permet d'obtenir son propre pid // "getppid()" renvoie le pid du père d'un processus int main (void) { pid_t pid_fils; pid_fils = fork(); if(pid_fils==-1) { printf("Erreur de création du processus fils\

  3. Locating hardware faults in a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J.; Megerian, Mark G.; Ratterman, Joseph D.; Smith, Brian E.

    2010-04-13T23:59:59.000Z

    Locating hardware faults in a parallel computer, including defining within a tree network of the parallel computer two or more sets of non-overlapping test levels of compute nodes of the network that together include all the data communications links of the network, each non-overlapping test level comprising two or more adjacent tiers of the tree; defining test cells within each non-overlapping test level, each test cell comprising a subtree of the tree including a subtree root compute node and all descendant compute nodes of the subtree root compute node within a non-overlapping test level; performing, separately on each set of non-overlapping test levels, an uplink test on all test cells in a set of non-overlapping test levels; and performing, separately from the uplink tests and separately on each set of non-overlapping test levels, a downlink test on all test cells in a set of non-overlapping test levels.

  4. Computer Systems and Network Manager

    E-Print Network [OSTI]

    Computer Systems and Network Manager Fort Collins, Colorado POSITION A Computers Systems activities. RESPONSIBILITIES The successful candidate will perform computer systems and network administration, including computer hardware, systems software, applications software, and all configurations

  5. Demonstration of Datacenter Automation Software and Hardware (DASH) at the California Franchise Tax Board

    E-Print Network [OSTI]

    Bell, Geoffrey C.

    2010-01-01T23:59:59.000Z

    of Datacenter Automation Software and Hardware (DASH) at theof Datacenter Automation Software and Hardware (DASH) at theprotocol for building automation and control networks. It is

  6. A low cost network of spectrometer radiation detectors based on the ArduSiPM a compact transportable Software/Hardware Data Acquisition system with Arduino DUE

    E-Print Network [OSTI]

    Bocci, Valerio; Iacoangeli, Francesco; Nuccetelli, Massimo; Recchia, Luigi

    2015-01-01T23:59:59.000Z

    The necessity to use Photo Multipliers (PM) as light detector limited in the past the use of crystals in radiation handled device preferring the Geiger approach. The Silicon Photomultipliers (SiPMs) are very small and cheap, solid photon detectors with good dynamic range and single photon detection capability, they are usable to supersede in some application cumbersome and difficult to use Photo Multipliers (PM). A SiPM can be coupled with a scintillator crystal to build efficient, small and solid radiation detector. A cost effective and easily replicable Hardware software module for SiPM detector readout is made using the ArduSiPM solution [1]. The ArduSiPM is an easily battery operable handled device using an Arduino DUE (an open Software/Hardware board) as processor board and a piggy-back custom designed board (ArduSiPM Shield), the Shield contains all the blocks features to monitor, set and acquire the SiPM using internet network.

  7. On the Vulnerability of Hardware Hash Tables to Sophisticated Attacks

    E-Print Network [OSTI]

    Bremler-Barr, Anat

    results as well. Keywords: DDoS, Network Hardware, Hash , Peacock, Cuckoo. 1 Introduction Modern high. Such network hardware elements are highly preferable targets for DDoS (Distributed Denial of Service) attacks with knowledge about how the system works, an attacker can perform a low-bandwidth sophisticated DDoS attack

  8. GENI: Grid Hardware and Software

    SciTech Connect (OSTI)

    None

    2012-01-09T23:59:59.000Z

    GENI Project: The 15 projects in ARPA-E’s GENI program, short for “Green Electricity Network Integration,” aim to modernize the way electricity is transmitted in the U.S. through advances in hardware and software for the electric grid. These advances will improve the efficiency and reliability of electricity transmission, increase the amount of renewable energy the grid can utilize, and provide energy suppliers and consumers with greater control over their power flows in order to better manage peak power demand and cost.

  9. Hardware multiplier processor

    DOE Patents [OSTI]

    Pierce, Paul E. (Albuquerque, NM)

    1986-01-01T23:59:59.000Z

    A hardware processor is disclosed which in the described embodiment is a memory mapped multiplier processor that can operate in parallel with a 16 bit microcomputer. The multiplier processor decodes the address bus to receive specific instructions so that in one access it can write and automatically perform single or double precision multiplication involving a number written to it with or without addition or subtraction with a previously stored number. It can also, on a single read command automatically round and scale a previously stored number. The multiplier processor includes two concatenated 16 bit multiplier registers, two 16 bit concatenated 16 bit multipliers, and four 16 bit product registers connected to an internal 16 bit data bus. A high level address decoder determines when the multiplier processor is being addressed and first and second low level address decoders generate control signals. In addition, certain low order address lines are used to carry uncoded control signals. First and second control circuits coupled to the decoders generate further control signals and generate a plurality of clocking pulse trains in response to the decoded and address control signals.

  10. Hardware packet pacing using a DMA in a parallel computer

    DOE Patents [OSTI]

    Chen, Dong; Heidelberger, Phillip; Vranas, Pavlos

    2013-08-13T23:59:59.000Z

    Method and system for hardware packet pacing using a direct memory access controller in a parallel computer which, in one aspect, keeps track of a total number of bytes put on the network as a result of a remote get operation, using a hardware token counter.

  11. Theorem Proving Support for Hardware Veri cation |Preliminary Draft|

    E-Print Network [OSTI]

    Kapur, Deepak

    designers in the design and veri#12;- cation of hardware circuits, even though there has recently of Computer Science University of New Mexico Albuquerque, NM 87131 kapur@cs.unm.edu 1 Introduction Automated reasoning is viewed as a critical technology in designing complex hardware chips, con- trollers, network

  12. Hardware device binding and mutual authentication

    DOE Patents [OSTI]

    Hamlet, Jason R; Pierson, Lyndon G

    2014-03-04T23:59:59.000Z

    Detection and deterrence of device tampering and subversion by substitution may be achieved by including a cryptographic unit within a computing device for binding multiple hardware devices and mutually authenticating the devices. The cryptographic unit includes a physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generates a binding PUF value. The cryptographic unit uses the binding PUF value during an enrollment phase and subsequent authentication phases. During a subsequent authentication phase, the cryptographic unit uses the binding PUF values of the multiple hardware devices to generate a challenge to send to the other device, and to verify a challenge received from the other device to mutually authenticate the hardware devices.

  13. Structures including network and topology for identifying, locating and quantifying physical phenomena

    DOE Patents [OSTI]

    Richardson, John G.; Moore, Karen A.; Carrington, Robert A.

    2006-04-25T23:59:59.000Z

    A method and system for detecting, locating and quantifying a physical phenomena such as strain or a deformation in a structure. A plurality of laterally adjacent conductors may each include a plurality of segments. Each segment is constructed to exhibit a unit value representative of a defined energy transmission characteristic. A plurality of identity groups are defined with each identity group comprising a plurality of segments including at least one segment from each of the plurality of conductors. The segments contained within an identity group are configured and arranged such that each of their associated unit values may be represented by a concatenated digit string which is a unique number relative to the other identity groups. Additionally, the unit values of the segments within an identity group maintain unique ratios with respect to the other unit values in the identity group.

  14. Pipeline including network and topology for identifying, locating and quantifying physical phenomena

    DOE Patents [OSTI]

    Richardson, John G.; Moore, Karen A.; Carrington, Robert A.

    2006-02-14T23:59:59.000Z

    A method and system for detecting, locating and quantifying a physical phenomena such as strain or a deformation in a structure. A plurality of laterally adjacent conductors may each include a plurality of segments. Each segment is constructed to exhibit a unit value representative of a defined energy transmission characteristic. A plurality of identity groups are defined with each identity group comprising a plurality of segments including at least one segment from each of the plurality of conductors. The segments contained within an identity group are configured and arranged such that each of their associated unit values may be represented by a concatenated digit string which is a unique number relative to the other identity groups. Additionally, the unit values of the segments within an identity group maintain unique ratios with respect to the other unit values in the identity group.

  15. Energy star compliant voice over internet protocol (VoIP) telecommunications network including energy star compliant VoIP devices

    DOE Patents [OSTI]

    Kouchri, Farrokh Mohammadzadeh

    2012-11-06T23:59:59.000Z

    A Voice over Internet Protocol (VoIP) communications system, a method of managing a communications network in such a system and a program product therefore. The system/network includes an ENERGY STAR (E-star) aware softswitch and E-star compliant communications devices at system endpoints. The E-star aware softswitch allows E-star compliant communications devices to enter and remain in power saving mode. The E-star aware softswitch spools messages and forwards only selected messages (e.g., calls) to the devices in power saving mode. When the E-star compliant communications devices exit power saving mode, the E-star aware softswitch forwards spooled messages.

  16. Case School of Engineering San Diego Programs HARDWARE SECURITY

    E-Print Network [OSTI]

    Rollins, Andrew M.

    : A Survey 6. Secure Hardware IPs by Digital Watermark 7. Physical Attacks, Tamper standards. Cheating includes copying from another's work, falsifying problem solutions or laboratory reports

  17. March 24, 2009 RE: Microsoft Hardware

    E-Print Network [OSTI]

    Narasayya, Vivek

    with the requirements of Enforcement Ordinance on the Recycling of Electrical and Electronic Equipment and Vehicles Act of the EU Battery Directive (2006/66/EC), which includes battery markings, information provided in documentation and recycling schemes. With respect to packaging, Microsoft designs its hardware and software

  18. A Novel Hardware Logic Encryption Technique for thwarting Illegal Overproduction

    E-Print Network [OSTI]

    Boyer, Edmond

    A Novel Hardware Logic Encryption Technique for thwarting Illegal Overproduction and Hardware. The different types of threats include mask theft, illegal overproduction, as well as the insertion of malicious of the manufactured ICs. One way to protect the ICs from mask theft and illegal overproduction is to encrypt

  19. Reviews of computing technology: An overview of neural networks

    SciTech Connect (OSTI)

    Rainsford, A.E.

    1992-02-15T23:59:59.000Z

    This report discusses the historical background, models, computer hardware, and uses of neural networks. (LSP)

  20. Demonstration of Prognostics-Enabled Decision Making Algorithms on a Hardware Mobile Robot Test Platform

    E-Print Network [OSTI]

    Daigle, Matthew

    Platform Adam Sweet1 , George Gorospe2 , Matthew Daigle1 , Jos´e R. Celaya2 , Edward Balaban1 , Indranil on a hardware mobile robot platform. The hardware platform, based on the K11 planetary rover prototype. The PDM algorithms were adapted to the hardware platform, including develop- ment of a software module

  1. Goal-oriented hardware design

    E-Print Network [OSTI]

    Chau, Man Ping Grace

    2008-01-01T23:59:59.000Z

    This thesis presents Fide, a hardware design system that uses Goal-oriented programming. Goal-oriented programming is a programming framework to specify open-ended decision logic. This approach relies on two fundamental ...

  2. Hardware support for collecting performance counters directly to memory

    DOE Patents [OSTI]

    Gara, Alan; Salapura, Valentina; Wisniewski, Robert W.

    2012-09-25T23:59:59.000Z

    Hardware support for collecting performance counters directly to memory, in one aspect, may include a plurality of performance counters operable to collect one or more counts of one or more selected activities. A first storage element may be operable to store an address of a memory location. A second storage element may be operable to store a value indicating whether the hardware should begin copying. A state machine may be operable to detect the value in the second storage element and trigger hardware copying of data in selected one or more of the plurality of performance counters to the memory location whose address is stored in the first storage element.

  3. A Case for Deconstructing Hardware Transactional Memory Systems

    E-Print Network [OSTI]

    Mark D. Hill; Derek Hower; Kevin E. Moore; Michael M. Swift; Haris Volos; David A. Wood

    2007-01-01T23:59:59.000Z

    Major hardware and software vendors are curious about transactional memory (TM), but are understandably cautious about committing to hardware changes. Our thesis is that deconstructing transactional memory into separate, interchangeable components facilitates TM adoption in two ways. First, it aids hardware TM refinement, allowing vendors to adopt TM earlier, knowing that they can more easily refine aspects later. Second, it enables the components to be applied to other uses, including reliability, security, performance, and correctness, providing value even if TM is not widely used. We develop some evidence for our thesis via experience with LogTM variants and preliminary case studies of scalable watchpoints and race recording for deterministic replay. 1

  4. SNL/NM weapon hardware characterization process development report

    SciTech Connect (OSTI)

    Graff, E.W.; Chambers, W.B.

    1995-01-01T23:59:59.000Z

    This report describes the process used by Sandia National Laboratories, New Mexico to characterize weapon hardware for disposition. The report describes the following basic steps: (1) the drawing search process and primary hazard identification; (2) the development of Disassembly Procedures (DPs), including demilitarization and sanitization requirements; (3) the generation of a ``disposal tree``; (4) generating RCRA waste disposal information; and (5) documenting the information. Additional data gathered during the characterization process supporting hardware grouping and recycle efforts is also discussed.

  5. Power Conservation in the Network Stack of Wireless Sensors Michael De Rosa

    E-Print Network [OSTI]

    Goldstein, Seth Copen

    , energy efficient design, network protocols #12;Table of Contents Introduction 1 Hardware 1 Software 2

  6. W-026 acceptance test plan plant control system hardware (submittal {number_sign} 216)

    SciTech Connect (OSTI)

    Watson, T.L., Fluor Daniel Hanford

    1997-02-14T23:59:59.000Z

    Acceptance Testing of the WRAP 1 Plant Control System Hardware will be conducted throughout the construction of WRAP I with the final testing on the Process Area hardware being completed in November 1996. The hardware tests will be broken out by the following functional areas; Local Control Units, Operator Control Stations in the WRAP Control Room, DMS Server, PCS Server, Operator Interface Units, printers, DNS terminals, WRAP Local Area Network/Communications, and bar code equipment. This document will contain completed copies of each of the hardware tests along with the applicable test logs and completed test exception reports.

  7. Scalable Digital Hardware for a Trapped Ion Quantum Computer

    E-Print Network [OSTI]

    Mount, Emily; Vrijsen, Geert; Adams, Michael; Baek, So-Young; Hudek, Kai; Isabella, Louis; Crain, Stephen; van Rynbach, Andre; Maunz, Peter; Kim, Jungsang

    2015-01-01T23:59:59.000Z

    Many of the challenges of scaling quantum computer hardware lie at the interface between the qubits and the classical control signals used to manipulate them. Modular ion trap quantum computer architectures address scalability by constructing individual quantum processors interconnected via a network of quantum communication channels. Successful operation of such quantum hardware requires a fully programmable classical control system capable of frequency stabilizing the continuous wave lasers necessary for trapping and cooling the ion qubits, stabilizing the optical frequency combs used to drive logic gate operations on the ion qubits, providing a large number of analog voltage sources to drive the trap electrodes, and a scheme for maintaining phase coherence among all the controllers that manipulate the qubits. In this work, we describe scalable solutions to these hardware development challenges.

  8. Tuple spaces in hardware for accelerated implicit routing

    SciTech Connect (OSTI)

    Baker, Zachary Kent [Los Alamos National Laboratory; Tripp, Justin [Los Alamos National Laboratory

    2010-12-01T23:59:59.000Z

    Organizing and optimizing data objects on networks with support for data migration and failing nodes is a complicated problem to handle as systems grow. The goal of this work is to demonstrate that high levels of speedup can be achieved by moving responsibility for finding, fetching, and staging data into an FPGA-based network card. We present a system for implicit routing of data via FPGA-based network cards. In this system, data structures are requested by name, and the network of FPGAs finds the data within the network and relays the structure to the requester. This is acheived through successive examination of hardware hash tables implemented in the FPGA. By avoiding software stacks between nodes, the data is quickly fetched entirely through FPGA-FPGA interaction. The performance of this system is orders of magnitude faster than software implementations due to the improved speed of the hash tables and lowered latency between the network nodes.

  9. Hardware Architecture for Semantic Comparison

    E-Print Network [OSTI]

    Mohan, Suneil

    2012-07-16T23:59:59.000Z

    Semantic Routed Networks provide a superior infrastructure for complex search engines. In a Semantic Routed Network (SRN), the routers are the critical component and they perform semantic comparison as their key computation. As the amount...

  10. Computer scientists and engineers design and implement efficient software and hardware

    E-Print Network [OSTI]

    Rohs, Remo

    62 Computer scientists and engineers design and implement efficient software and hardware solutions to computer-solvable problems. They are involved in the development of areas such as high-speed networks, internet technologies, social networks, systems design, computer graphics, video game development

  11. SenseTK: A Multimodal, Multimedia Sensor Networking Toolkit

    E-Print Network [OSTI]

    Bulusu, Nirupama

    of such systems include the need to push application processing deep within the sensor network, the need to bridge maintenance on ship vessels as well as semiconductor plants [12]. As small computing devices continue that programmatically and operationally, the system needs to be able to bridge a variety of hardware and software

  12. Collaboration Topics - Acceleration Hardware and APIs | National...

    National Nuclear Security Administration (NNSA)

    Simulation and Computing and Institutional R&D Programs NNSACEA Cooperation in Computer Science Collaboration Topics - Acceleration Hardware and APIs Collaboration Topics...

  13. INCREASING RENDERING PERFORMANCE OF GRAPHICS HARDWARE

    E-Print Network [OSTI]

    Whitton, Mary C.

    a compute-on-demand paradigm for the design of high-speed and energy-efficient graphics components. The goalINCREASING RENDERING PERFORMANCE OF GRAPHICS HARDWARE Justin Hensley A dissertation submitted RIGHTS RESERVED ii #12;ABSTRACT JUSTIN HENSLEY: Increasing Rendering Performance of Graphics Hardware

  14. Problem Description:Problem Description: Installing traditional, wired, structural health monitoring netwInstalling traditional, wired, structural health monitoring networks has severeorks has severe physical, hardware, cost, and time limitations.physical

    E-Print Network [OSTI]

    Heaton, Thomas H.

    monitoring netwInstalling traditional, wired, structural health monitoring networks has severeorks has severeProblem Description:Problem Description: Installing traditional, wired, structural health network for assessing pre- and post-event structural state of health. · Rapid deployment for aftershock

  15. Effect of Jatropha based Biodiesel, on Engine Hardware Reliability...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance Effect of Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance...

  16. 3D Hardware Canaries Sebastien Briais4

    E-Print Network [OSTI]

    surround the whole target and protect its content from physical attacks. 3D ICs are rel- atively hard reporting pre- liminary implementation results on silicon), we introduce a "hardware canary". The ca- nary

  17. Hardware model of a shipboard generator

    E-Print Network [OSTI]

    Elkins, Gregory L. (Gregory Lewis)

    2009-01-01T23:59:59.000Z

    A hardware model of the Gas Turbine Generator (GTG) in use on the US Navy's DDG-51 Class Destroyer is constructed for use as a lab apparatus at the Massachusetts Institute of Technology's Laboratory for Electromagnetic and ...

  18. VNET/P: Bridging the Cloud and High Performance Computing Through Fast Overlay Networking

    E-Print Network [OSTI]

    Bustamante, Fabián E.

    and Technology of China ytang@uestc.edu.cn ABSTRACT It is now possible to allow VMs hosting HPC applications to the native hardware, which is not the case for current user-level tools, including our own existing VNET/P achieves native performance on 1 Gbps Ethernet networks and very high performance on 10 Gbps Ethernet

  19. Computer scientists and engineers design and implement efficient software and hardware

    E-Print Network [OSTI]

    Rohs, Remo

    62 Computer scientists and engineers design and implement efficient software and hardware solutions to computer-solvable problems. They are involved in the development of areas such as high-speed networks, multimedia and creative technologies, systems design, video game development, and robotics. The Computer

  20. Computer scientists and engineers design and implement efficient software and hardware solutions

    E-Print Network [OSTI]

    Rohs, Remo

    64 Computer scientists and engineers design and implement efficient software and hardware solutions to computer-solvable problems. They are involved in the development of areas such as high-speed networks, multimedia and creative technologies, systems design, virtual reality, and robotics. The Computer Science

  1. Wireless Security Techniques for Coordinated Manufacturing and On-line Hardware Trojan Detection

    E-Print Network [OSTI]

    Potkonjak, Miodrag

    Wireless Security Techniques for Coordinated Manufacturing and On-line Hardware Trojan Detection) attacks that impose severe threats to the security and integrity of wireless networks and systems. We activi- ties, consumes ultra-low leakage power, and hides from delay characterizations. Therefore, the HT

  2. Transportation Perspectives on Automotive Cyber Physical System: Integrating Hardware-in-the-Loop, Software-in-the-Loop and Human-in-the-Loop Simulations

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    1 Transportation Perspectives on Automotive Cyber Physical System: Integrating Hardware and development environment to evaluate automotive cyber physical system (CPS) as well as its components foundation of the automotive CPS for developing and testing vehicular networking and sensing technologies

  3. Radioisotope thermoelectric generator licensed hardware package and certification tests

    SciTech Connect (OSTI)

    Goldmann, L.H.; Averette, H.S. [Westinghouse Hanford Company, P.O. Box 1970, M/S R3-86 or N1-32, Richland, Washington 99352 (United States)

    1995-01-20T23:59:59.000Z

    This paper presents the Licensed Hardware package and the Certification Test portions of the Radioisitope Themoelectric Generator Transportation System. This package has been designed to meet those portions of the {ital Code} {ital of} {ital Federal} {ital Regulations} (10 CFR 71) relating to ``Type B`` shipments of radioactive materials. The licensed hardware is now in the U. S. Department of Energy licensing process that certifies the packaging`s integrity under accident conditions. The detailed information for the anticipated license is presented in the safety analysis report for packaging, which is now in process and undergoing necessary reviews. As part of the licensing process, a full-size Certification Test Article unit, which has modifications slightly different than the Licensed Hardware or production shipping units, is used for testing. Dimensional checks of the Certification Test Article were made at the manufacturing facility. Leak testing and drop testing were done at the 300 Area of the U.S. Department of Energy`s Hanford Site near Richland, Washington. The hardware includes independent double containments to prevent the environmental spread of {sup 238}Pu, impact limiting devices to protect portions of the package from impacts, and thermal insulation to protect the seal areas from excess heat during accident conditions. The package also features electronic feed-throughs to monitor the Radioisotope Thermoelectric Generator`s temperature inside the containment during the shipment cycle. This package is designed to safely dissipate the typical 4,500 thermal watts produced in the largest Radioisotope Thermoelectric Generators. The package also contains provisions to ensure leak tightness when radioactive materials, such as a Radioisotope Thermoelectric Generator for the Cassini Mission, planned for 1997 by the National Aeronautics and Space Administration, are being prepared for shipment. (Abstract Truncated)

  4. Private Information Retrieval Using Trusted Hardware

    E-Print Network [OSTI]

    Institute for Infocomm Research, Singapore baofeng@i2r.a-star.edu.sg Abstract. Many theoretical PIR (Private and computation complexity. The re- cent trend in outsourcing databases fuels the research on practical PIR schemes. In this paper, we propose a new PIR system by making use of trusted hardware. Our system

  5. Comparing Evolvable Hardware to Conventional Classifiers for

    E-Print Network [OSTI]

    Hellebrand, Sybille

    Classifiers !! Experiment Setup and Results !! Discussion and Future Work Glette, Gruber, Kaufmann, Torresen than ANNs Glette, Gruber, Kaufmann, Torresen, Sick, Platzner 4 AHS 2008 #12;System Overview Glette-Application !! Conventional and Evolvable Hardware Classifiers !! Experiment Setup and Results !! Discussion and Future Work

  6. Hardware Metering: A Survey Farinaz Koushanfar

    E-Print Network [OSTI]

    , the problem has recently gained an increased attention by the industry, government, and research community passive and active hardware metering methods available. Electrical and Computer Engineering Department only be performed in state-of-art fabrication facilities. Building or maintaining such facilities

  7. Cathode side hardware for carbonate fuel cells

    DOE Patents [OSTI]

    Xu, Gengfu (Danbury, CT); Yuh, Chao-Yi (New Milford, CT)

    2011-03-29T23:59:59.000Z

    Carbonate fuel cathode side hardware having a thin coating of a conductive ceramic formed from one of LSC (La.sub.0.8Sr.sub.0.2CoO.sub.3) and lithiated NiO (Li.sub.xNiO, where x is 0.1 to 1).

  8. Guest Editors' Introduction: Confronting the Hardware

    E-Print Network [OSTI]

    ) and IC piracy, to digital rights management, to untrusted third-party IP cores, to attacks designed. The authors designed two hardware Trojans, which leak the encryption key by manipulating the transmission of Computers8 #12;a way that they change neither the functionality of the digital part nor the performance

  9. Hardware Trojans in Wireless Cryptographic ICs

    E-Print Network [OSTI]

    Makris, Yiorgos

    Partly because of design outsourcing and migration of fabrication foundries to low-cost areas across manufacturing defects but is not geared toward uncovering such ma- licious hardware modifications. Destructive milestone because it first demonstrated the utility of statistical analysis toward constructing effective

  10. Massively Parallel Data Mining Using Reconfigurable Hardware

    E-Print Network [OSTI]

    Chamberlain, Roger

    ]. The basic idea is to decompose the data mining oper- ation into two components. The low-level componentMassively Parallel Data Mining Using Reconfigurable Hardware: Approximate String Matching Qiong. Chamberlain, Ronald S. Indeck, Benjamin West, and Jason White, "Massively Parallel Data Mining Using

  11. Hardware support for software controlled fast reconfiguration of performance counters

    DOE Patents [OSTI]

    Salapura, Valentina; Wisniewski, Robert W

    2013-09-24T23:59:59.000Z

    Hardware support for software controlled reconfiguration of performance counters may include a plurality of performance counters collecting one or more counts of one or more selected activities. A storage element stores data value representing a time interval, and a timer element reads the data value and detects expiration of the time interval based on the data value and generates a signal. A plurality of configuration registers stores a set of performance counter configurations. A state machine receives the signal and selects a configuration register from the plurality of configuration registers for reconfiguring the one or more performance counters.

  12. Non-Hardware ("Soft") Cost-Reduction Roadmap for

    E-Print Network [OSTI]

    Non-Hardware ("Soft") Cost- Reduction Roadmap for Residential and Small Commercial Solar Golden, CO 80401 303-275-3000 · www.nrel.gov Non-Hardware ("Soft") Cost- Reduction Roadmap

  13. Breakout Session: Getting in the Loop: PV Hardware Recycling...

    Energy Savers [EERE]

    Getting in the Loop: PV Hardware Recycling and Sustainability Breakout Session: Getting in the Loop: PV Hardware Recycling and Sustainability May 21, 2014 6:30PM to 7:30PM PDT...

  14. Security challenges and opportunities in adaptive and reconfigurable hardware

    E-Print Network [OSTI]

    Costan, Victor Marius

    We present a novel approach to building hardware support for providing strong security guarantees for computations running in the cloud (shared hardware in massive data centers), while maintaining the high performance and ...

  15. Energy Department Announces $7 Million to Reduce Non-Hardware...

    Office of Environmental Management (EM)

    7 Million to Reduce Non-Hardware Costs of Solar Energy Systems Energy Department Announces 7 Million to Reduce Non-Hardware Costs of Solar Energy Systems November 15, 2011 -...

  16. Deterrence of device counterfeiting, cloning, and subversion by substitution using hardware fingerprinting

    DOE Patents [OSTI]

    Hamlet, Jason R; Bauer, Todd M; Pierson, Lyndon G

    2014-09-30T23:59:59.000Z

    Deterrence of device subversion by substitution may be achieved by including a cryptographic fingerprint unit within a computing device for authenticating a hardware platform of the computing device. The cryptographic fingerprint unit includes a physically unclonable function ("PUF") circuit disposed in or on the hardware platform. The PUF circuit is used to generate a PUF value. A key generator is coupled to generate a private key and a public key based on the PUF value while a decryptor is coupled to receive an authentication challenge posed to the computing device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key.

  17. Hardware Accelerator for MIMO Wireless Systems

    E-Print Network [OSTI]

    Bhagawat, Pankaj

    2012-02-14T23:59:59.000Z

    of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Gwan Choi Committee Members, Jiang Hu Rabi Mahapatra Jim Ji Head of Department, Costas Georghiades December 2011 Major Subject: Computer Engineering iii ABSTRACT Hardware Accelerator for MIMO... Wireless Systems. (December 2011) Pankaj Bhagawat, B.S., National Insitute of Technology, Tiruchirapally, India; M.S., Texas A&M University Chair of Advisory Committee: Dr. Gwan Choi Ever increasing demand for higher data rates and better Quality...

  18. Seamlessly Integrating Software & Hardware Modelling for Large-Scale Systems

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Engineering, with the math- ematical modelling approach, Modelica, to address the software/hardware integration problem. The environment and hardware components are modelled in Modelica and integrated software-hardware codesign, large-scale sys- tems, Behavior Engineering, Modelica. 1. Introduction

  19. General calculations using graphics hardware, with application to interactive caustics

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    General calculations using graphics hardware, with application to interactive caustics Chris Trendall and A. James Stewart iMAGIS­GRAVIR/IMAG and University of Toronto Abstract. Graphics hardware has general computation. This paper shows that graphics hardware can perform general calculations, which

  20. Glacier: A Query-to-Hardware Compiler Rene Mueller

    E-Print Network [OSTI]

    Teubner, Jens

    Glacier: A Query-to-Hardware Compiler Rene Mueller rene.mueller@inf.ethz.ch Jens Teubner jens systems. In this demonstration we show Glacier, a library and a compiler that can be employed to implement streaming queries as hardware circuits on FPGAs. Glacier consists of a library of compositional hardware

  1. artificial extracellular matrix: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Demetri 346 Algorithms and Hardware for Implementing Artificial Neural Networks Nathan Hower Computer Technologies and Information Sciences Websites Summary: Algorithms and...

  2. artificial heart perspectives: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Demetri 203 Algorithms and Hardware for Implementing Artificial Neural Networks Nathan Hower Computer Technologies and Information Sciences Websites Summary: Algorithms and...

  3. aegina kolonna greece: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    handles cross-coupling sensors and require external hardware elements (only edge Zachmann, Gabriel 44 Policies for content filtering in educational networks: the case of...

  4. Class network routing

    DOE Patents [OSTI]

    Bhanot, Gyan (Princeton, NJ); Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2009-09-08T23:59:59.000Z

    Class network routing is implemented in a network such as a computer network comprising a plurality of parallel compute processors at nodes thereof. Class network routing allows a compute processor to broadcast a message to a range (one or more) of other compute processors in the computer network, such as processors in a column or a row. Normally this type of operation requires a separate message to be sent to each processor. With class network routing pursuant to the invention, a single message is sufficient, which generally reduces the total number of messages in the network as well as the latency to do a broadcast. Class network routing is also applied to dense matrix inversion algorithms on distributed memory parallel supercomputers with hardware class function (multicast) capability. This is achieved by exploiting the fact that the communication patterns of dense matrix inversion can be served by hardware class functions, which results in faster execution times.

  5. Network Chimera Network Chimera

    E-Print Network [OSTI]

    Network Chimera Network Chimera Objective Chimera aims to understand how the network properties enough with limited resources. The Chimera team is cross-disciplinary, and includes computer scientists Impact The original hypothesis of Chimera was that a physical network could be reduced to a graph

  6. Cathode side hardware for carbonate fuel cells

    DOE Patents [OSTI]

    Xu, Gengfu (Danbury, CT); Yuh, Chao-Yi (New Milford, CT)

    2011-04-05T23:59:59.000Z

    Carbonate fuel cathode side hardware having a thin coating of a conductive ceramic formed from one of Perovskite AMeO.sub.3, wherein A is at least one of lanthanum and a combination of lanthanum and strontium and Me is one or more of transition metals, lithiated NiO (Li.sub.xNiO, where x is 0.1 to 1) and X-doped LiMeO.sub.2, wherein X is one of Mg, Ca, and Co.

  7. New hardware, software boost unit performance

    SciTech Connect (OSTI)

    Not Available

    1990-02-01T23:59:59.000Z

    Hardware and software developed by the Electric Power Research Institute (EPRI) over the last several years can help utilities monitor the performance of fossil-fired powerplants, diagnose and correct operating problems, and detect equipment degradation at an early stage. These products, 19 in all, have been combined at Potomac Electric Power Co's (Pepco) Morgantown Unit 2 to form an integrated performance monitoring system that has already reduced heat rate by 100 Btu/kWh on a unit that historically has been one of the better-performing plants in the nation. Maintenance planning and unit capacity have improved as well. Additional benefits also are likely, according to EPRI.

  8. DETECTION OF SUBSURFACE FACILITIES INCLUDING NON-METALLIC PIPE

    SciTech Connect (OSTI)

    Mr. Herb Duvoisin

    2003-05-26T23:59:59.000Z

    CyTerra has leveraged our unique, shallow buried plastic target detection technology developed under US Army contracts into deeper buried subsurface facilities and including nonmetallic pipe detection. This Final Report describes a portable, low-cost, real-time, and user-friendly subsurface plastic pipe detector (LULU- Low Cost Utility Location Unit) that relates to the goal of maintaining the integrity and reliability of the nation's natural gas transmission and distribution network by preventing third party damage, by detecting potential infringements. Except for frequency band and antenna size, the LULU unit is almost identical to those developed for the US Army. CyTerra designed, fabricated, and tested two frequency stepped GPR systems, spanning the frequencies of importance (200 to 1600 MHz), one low and one high frequency system. Data collection and testing was done at a variety of locations (selected for soil type variations) on both targets of opportunity and selected buried targets. We developed algorithms and signal processing techniques that provide for the automatic detection of the buried utility lines. The real time output produces a sound as the radar passes over the utility line alerting the operator to the presence of a buried object. Our unique, low noise/high performance RF hardware, combined with our field tested detection algorithms, represents an important advancement toward achieving the DOE potential infringement goal.

  9. advanced stack hardware: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Database Group Carnegie% Ideal seq. scan index scan DSS OLTP executiontime BUSY IDLE DBMS can run MUCH faster if they use new;@Carnegie Mellon Databases 62004 Anastassia...

  10. analogue fuzzy hardware: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    class based input categorisation, online learning Marshall, Ian W. 4 Duality in Fuzzy Sigma Models General Relativity & Quantum Cosmology (arXiv) Summary: Nonlinear...

  11. Combining multi-layered bitmap files using network specific hardware

    DOE Patents [OSTI]

    DuBois, David H. (Los Alamos, NM); DuBois, Andrew J. (Santa Fe, NM); Davenport, Carolyn Connor (Los Alamos, NM)

    2012-02-28T23:59:59.000Z

    Images and video can be produced by compositing or alpha blending a group of image layers or video layers. Increasing resolution or the number of layers results in increased computational demands. As such, the available computational resources limit the images and videos that can be produced. A computational architecture in which the image layers are packetized and streamed through processors can be easily scaled so to handle many image layers and high resolutions. The image layers are packetized to produce packet streams. The packets in the streams are received, placed in queues, and processed. For alpha blending, ingress queues receive the packetized image layers which are then z sorted and sent to egress queues. The egress queue packets are alpha blended to produce an output image or video.

  12. Hardware authentication using transmission spectra modified optical fiber.

    SciTech Connect (OSTI)

    Grubbs, Robert K.; Romero, Juan A.

    2010-09-01T23:59:59.000Z

    The ability to authenticate the source and integrity of data is critical to the monitoring and inspection of special nuclear materials, including hardware related to weapons production. Current methods rely on electronic encryption/authentication codes housed in monitoring devices. This always invites the question of implementation and protection of authentication information in an electronic component necessitating EMI shielding, possibly an on board power source to maintain the information in memory. By using atomic layer deposition techniques (ALD) on photonic band gap (PBG) optical fibers we will explore the potential to randomly manipulate the output spectrum and intensity of an input light source. This randomization could produce unique signatures authenticating devices with the potential to authenticate data. An external light source projected through the fiber with a spectrometer at the exit would 'read' the unique signature. No internal power or computational resources would be required.

  13. Expert System analysis of non-fuel assembly hardware and spent fuel disassembly hardware: Its generation and recommended disposal

    SciTech Connect (OSTI)

    Williamson, D.A.

    1991-12-31T23:59:59.000Z

    Almost all of the effort being expended on radioactive waste disposal in the United States is being focused on the disposal of spent Nuclear Fuel, with little consideration for other areas that will have to be disposed of in the same facilities. one area of radioactive waste that has not been addressed adequately because it is considered a secondary part of the waste issue is the disposal of the various Non-Fuel Bearing Components of the reactor core. These hardware components fall somewhat arbitrarily into two categories: Non-Fuel Assembly (NFA) hardware and Spent Fuel Disassembly (SFD) hardware. This work provides a detailed examination of the generation and disposal of NFA hardware and SFD hardware by the nuclear utilities of the United States as it relates to the Civilian Radioactive Waste Management Program. All available sources of data on NFA and SFD hardware are analyzed with particular emphasis given to the Characteristics Data Base developed by Oak Ridge National Laboratory and the characterization work performed by Pacific Northwest Laboratories and Rochester Gas & Electric. An Expert System developed as a portion of this work is used to assist in the prediction of quantities of NFA hardware and SFD hardware that will be generated by the United States` utilities. Finally, the hardware waste management practices of the United Kingdom, France, Germany, Sweden, and Japan are studied for possible application to the disposal of domestic hardware wastes. As a result of this work, a general classification scheme for NFA and SFD hardware was developed. Only NFA and SFD hardware constructed of zircaloy and experiencing a burnup of less than 70,000 MWD/MTIHM and PWR control rods constructed of stainless steel are considered Low-Level Waste. All other hardware is classified as Greater-ThanClass-C waste.

  14. OFC Review 2013 Software Defined Network (SDN)

    E-Print Network [OSTI]

    California at Davis, University of

    and transmission rate w/o hardware change Dedicated PCE to scale OpenFlow architectutre #12;Network ArchitectureOFC Review 2013 Software Defined Network (SDN) M. Farhan Habib May 10, 2013 Friday Group Meeting Networks Lab @ UCD #12;NTu3F: SDN in Today's Network #12;SDN: What and Why · Traditional distributed

  15. Tuning Hardware and Software for Multiprocessors

    E-Print Network [OSTI]

    Mohiyuddin, Marghoob

    2012-01-01T23:59:59.000Z

    editors, High-Performance Computing and Networking, volumeIn Journal of High Performance Computing Applications, [83]Little’s Law and High-Performance Computing, 1997. [6] D.

  16. Guest Editor's Introduction: Hardware-Soft'Ware Codesign

    E-Print Network [OSTI]

    De Micheli, Giovanni

    establishing an integmted design methodology for hardware and software systems that could be supported~ Guest Editor's Introduction: Hardware-Soft'Ware Codesign Giovanni De AficMli Stanfcxd the chip to the digital system level, and to CAD vendors who hope to extend their customer base

  17. A power aware partitioning framework for hardware-software codesign

    E-Print Network [OSTI]

    Kappagantula, Vijay Rama Pramod

    2003-01-01T23:59:59.000Z

    ) for each task i are obtained on the StrongARM SA-1100 processor (operating at 206 MHz) using JouleFrack [25]. For the hardware implementations, VHDL RTL was developed for all the functional blocks. The target reconfigurable hardware resource in our study...

  18. Graphics Hardware (2005) M. Meissner, B.-O. Schneider (Editors)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Graphics Hardware (2005) M. Meissner, B.- O. Schneider (Editors) Generic Mesh Refinement on GPU recent publications have shown that a large variety of computation involved in computer graphics can reason for this, is that vertex shaders available on current graphics hardware do not allow

  19. Graphics Hardware (2006) M. Olano, P. Slusallek (Editors)

    E-Print Network [OSTI]

    Skadron, Kevin

    Graphics Hardware (2006) M. Olano, P. Slusallek (Editors) The Visual Vulnerability Spectrum: Characterizing Architectural Vulnerability for Graphics Hardware Jeremy W. Sheaffer1 David P. Luebke2 Kevin of transient faults in semiconductors shifts away from high- energy cosmic particle strikes and toward more

  20. A verified development of hardware using CSP B

    E-Print Network [OSTI]

    Schneider, Steve

    A verified development of hardware using CSP B Alistair McEwan Department of Computing University show how a combination of the process algebra CSP and the state-based formalism B, combined into a single notation called CSP B can be used in the formal development of hardware. The use of CSP B

  1. Java Debug Hardware Models using JBits Jonathan Ballagh

    E-Print Network [OSTI]

    the bitstream. The rest of the JBits API is a set of constants that define the configurable resources/JBits-based hardware device models. Using the JBits API, behavioral hardware models can be written in Java and used is needed. #12;2 JBits JBits [1] is a Java API that provides access to every configurable resource in a FPGA

  2. Internship Contract (Includes Practicum)

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    Internship Contract (Includes Practicum) Student's name-mail: _________________________________________ Internship Agency Contact Agency Name: ____________________________________ Address-mail: __________________________________________ Location of Internship, if different from Agency: ________________________________________________ Copies

  3. Smart-Metering for Monitoring Building Power Distribution Network using Instantaneous Phasor Computations of Electrical Signals

    E-Print Network [OSTI]

    K.R., Krishnanand

    2013-01-01T23:59:59.000Z

    efficient operation of a smart meter network . in IndustrialGood standards for smart meters . in European EnergyHardware development for Smart Meter based innovations . in

  4. Pump apparatus including deconsolidator

    DOE Patents [OSTI]

    Sonwane, Chandrashekhar; Saunders, Timothy; Fitzsimmons, Mark Andrew

    2014-10-07T23:59:59.000Z

    A pump apparatus includes a particulate pump that defines a passage that extends from an inlet to an outlet. A duct is in flow communication with the outlet. The duct includes a deconsolidator configured to fragment particle agglomerates received from the passage.

  5. The NUCLARR databank: Human reliability and hardware failure data for the nuclear power industry

    SciTech Connect (OSTI)

    Reece, W.J.

    1993-05-01T23:59:59.000Z

    Under the sponsorship of the US Nuclear Regulatory Commission (NRC), the Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR) was developed to provide human reliability and hardware failure data to analysts in the nuclear power industry. This IBM-compatible databank is contained on a set of floppy diskettes which include data files and a menu-driven system for locating, reviewing, sorting, and retrieving the data. NUCLARR contains over 2500 individual data records, drawn from more, than 60 sources. The system is upgraded annually, to include additional human error and hardware component failure data and programming enhancements (i.e., increased user-friendliness). NUCLARR is available from the NRC through project staff at the INEL.

  6. Living Expenses (includes approximately

    E-Print Network [OSTI]

    Maroncelli, Mark

    & engineering programs All other programs Graduate: MBA/INFSY at Erie & Harrisburg (12 credits) Business Guarantee 3 (Does not include Dependents Costs4 ) Altoona, Berks, Erie, and Harrisburg 12-Month Estimated

  7. Comparison of leading parallel NAS file systems on commodity hardware

    SciTech Connect (OSTI)

    Hedges, R; Fitzgerald, K; Gary, M; Stearman, D M

    2010-11-08T23:59:59.000Z

    High performance computing has experienced tremendous gains in system performance over the past 20 years. Unfortunately other system capabilities, such as file I/O, have not grown commensurately. In this activity, we present the results of our tests of two leading file systems (GPFS and Lustre) on the same physical hardware. This hardware is the standard commodity storage solution in use at LLNL and, while much smaller in size, is intended to enable us to learn about differences between the two systems in terms of performance, ease of use and resilience. This work represents the first hardware consistent study of the two leading file systems that the authors are aware of.

  8. Self-Aware Networks and QoS Erol Gelenbe, Fellow IEEE, Ricardo Lent, Arturo Nunez

    E-Print Network [OSTI]

    Gelenbe, Erol

    and services. Examples include Enterprise Networks, Home Networks (Domotics), Sensor Net- works, Networks

  9. A UNIFIED HARDWARE/SOFTWARE PRIORITY SCHEDULING MODEL FOR GENERAL PURPOSE SYSTEMS

    E-Print Network [OSTI]

    Preston, Keith Alan

    2012-05-31T23:59:59.000Z

    Migrating functionality from software to hardware has historically held the promise of enhancing performance through exploiting the inherent parallel nature of hardware. Many early exploratory efforts in repartitioning ...

  10. Two Hardware-based Approaches for Deterministic Multiprocessor Replay

    E-Print Network [OSTI]

    Derek R. Hower; Luis Ceze; Mark D. Hill; Pablo Montesinos; Josep Torrellas

    Many shared-memory multithreaded executions behave nondeterministically, especially when run on multiprocessor hardware, such as emerging multicore systems. Recording nondeterministic events in such executions can enable deterministic replay — e.g., for debugging. Most challenging is recording memory races that can occur on most memory references. For this reason, researchers have previously proposed hardware to record key memory race interactions among threads. The two research groups co-authoring this paper independently uncovered a dual approach: focus on recording how long threads execute without interacting. From this common insight, the groups developed two significantly-different hardware proposals. Wisconsin Rerun makes few changes to standard multicore hardware, while Illinois DeLorean promises much smaller log sizes and higher replay speeds. By presenting both proposals in one paper, we seek to illuminate the promise of the joint insight and inspire future designs. 1.

  11. Towards An Automated Approach to Hardware/Software Decomposition

    E-Print Network [OSTI]

    Qin, Shengchao

    We propose in this paper an algebraic approach to hard-ware/software partitioning in Verilog Hardware Description Language (HDL). We explore a collection of algebraic laws for Verilog programs, from which we design a set ...

  12. Object-Space Interference Detection on Programmable Graphics Hardware

    E-Print Network [OSTI]

    Zachmann, Gabriel

    Zachmann Abstract. We present a novel method for checking the intersection of polygonal models on graphics. GreĂ? and G. Zachmann Many algorithms have been proposed to utilize graphics hardware for the problem

  13. The Yin and Yang of Hardware Heterogeneity: Can Software Survive?

    E-Print Network [OSTI]

    McKinley, Kathryn S.

    The Yin and Yang of Hardware Heterogeneity: Can Software Survive? Kathryn S. McKinley Microsoft- ingly choose high-level managed programming languages with safe pointer disciplines, garbage collection

  14. A timeshared, runtime reconfigurable hardware co-processing architecture

    E-Print Network [OSTI]

    Gelb, Benjamin S

    2009-01-01T23:59:59.000Z

    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 ...

  15. Database architecture (R)evolution: New hardware vs. new software

    E-Print Network [OSTI]

    Madden, Samuel R.

    The last few years have been exciting for data management system designers. The explosion in user and enterprise data coupled with the availability of newer, cheaper, and more capable hardware have lead system designers ...

  16. Graphics Hardware (2005) M. Meissner, B.-O. Schneider (Editors)

    E-Print Network [OSTI]

    Popovic, Jovan

    Graphics Hardware (2005) M. Meissner, B.- O. Schneider (Editors) A Reconfigurable Architecture,1 Frédo Durand1 1Massachusetts Institute of Technology 2Nokia Research Center Abstract Commodity graphics & F. Durand / A

  17. In-situ corrosivity monitoring of military hardware environments

    SciTech Connect (OSTI)

    Agarwala, V.S. [Naval Air Warfare Center, Patuxent River, MD (United States). Aircraft Div.

    1996-10-01T23:59:59.000Z

    A method to monitor corrosive conditions (environments) for military equipment was developed. The concept is based on the electrochemical principles of galvanic corrosion. It consisted of a novel thin film device (interdigitized bimetallic strips on a kapton polymer) which was galvanically coupled or short circuited through a zero resistance ammeter (ZRA) and interfaced to a custom design data acquisition system called Corrosion Monitoring System (CMS). The sensor`s unique design allowed the use of any metal as the active element or anode to form the galvanic couple, which enhanced sensor`s versatility and usefulness in almost any application. In most applications Cd-Au sensor was used. For in-situ corrosivity monitoring sensors were installed in the interior of the aircraft, hidden structures, avionics bays, and embedded under coatings and sealants. The test sites included: military bases, aircraft carrier flight decks, marine atmosphere and operational aircraft and weapons storage areas. The results show a significant correlation between the output of the sensors and the corrosive conditions present, and may become a basis for condition based maintenance of military hardware in the future.

  18. The APS control system network upgrade.

    SciTech Connect (OSTI)

    Sidorowicz, K. v.; Leibfritz, D.; McDowell, W. P.

    1999-10-22T23:59:59.000Z

    When it was installed,the Advanced Photon Source (APS) control system network was at the state-of-the-art. Different aspects of the system have been reported at previous meetings [1,2]. As loads on the controls network have increased due to newer and faster workstations and front-end computers, we have found performance of the system declining and have implemented an upgraded network. There have been dramatic advances in networking hardware in the last several years. The upgraded APS controls network replaces the original FDDI backbone and shared Ethernet hubs with redundant gigabit uplinks and fully switched 10/100 Ethernet switches with backplane fabrics in excess of 20 Gbits/s (Gbps). The central collapsed backbone FDDI concentrator has been replaced with a Gigabit Ethernet switch with greater than 30 Gbps backplane fabric. Full redundancy of the system has been maintained. This paper will discuss this upgrade and include performance data and performance comparisons with the original network.

  19. Recovery Act: Energy Efficiency of Data Networks through Rate Adaptation (EEDNRA) - Final Technical Report

    SciTech Connect (OSTI)

    Matthew Andrews; Spyridon Antonakopoulos; Steve Fortune; Andrea Francini; Lisa Zhang

    2011-07-12T23:59:59.000Z

    This Concept Definition Study focused on developing a scientific understanding of methods to reduce energy consumption in data networks using rate adaptation. Rate adaptation is a collection of techniques that reduce energy consumption when traffic is light, and only require full energy when traffic is at full provisioned capacity. Rate adaptation is a very promising technique for saving energy: modern data networks are typically operated at average rates well below capacity, but network equipment has not yet been designed to incorporate rate adaptation. The Study concerns packet-switching equipment, routers and switches; such equipment forms the backbone of the modern Internet. The focus of the study is on algorithms and protocols that can be implemented in software or firmware to exploit hardware power-control mechanisms. Hardware power-control mechanisms are widely used in the computer industry, and are beginning to be available for networking equipment as well. Network equipment has different performance requirements than computer equipment because of the very fast rate of packet arrival; hence novel power-control algorithms are required for networking. This study resulted in five published papers, one internal report, and two patent applications, documented below. The specific technical accomplishments are the following: • A model for the power consumption of switching equipment used in service-provider telecommunication networks as a function of operating state, and measured power-consumption values for typical current equipment. • An algorithm for use in a router that adapts packet processing rate and hence power consumption to traffic load while maintaining performance guarantees on delay and throughput. • An algorithm that performs network-wide traffic routing with the objective of minimizing energy consumption, assuming that routers have less-than-ideal rate adaptivity. • An estimate of the potential energy savings in service-provider networks using feasibly-implementable rate adaptivity. • A buffer-management algorithm that is designed to reduce the size of router buffers, and hence energy consumed. • A packet-scheduling algorithm designed to minimize packet-processing energy requirements. Additional research is recommended in at least two areas: further exploration of rate-adaptation in network switching equipment, including incorporation of rate-adaptation in actual hardware, allowing experimentation in operational networks; and development of control protocols that allow parts of networks to be shut down while minimizing disruption to traffic flow in the network. The research is an integral part of a large effort within Bell Laboratories, Alcatel-Lucent, aimed at dramatic improvements in the energy efficiency of telecommunication networks. This Study did not explicitly consider any commercialization opportunities.

  20. Declarative Network Monitoring with an Underprovisioned Query Processor Frederick Reiss

    E-Print Network [OSTI]

    California at Irvine, University of

    interest in bringing the power of declarative queries to passive network monitors [8, 15]. Declar- ative network monitoring setup. real-time data on the status of their networks, network moni- tors need, or parallel hardware [29]. Other systems construct queries by connecting blocks of highly-optimized special

  1. When diagnosing network problems, it is often desirable to have a view of traffic inside the network. In

    E-Print Network [OSTI]

    Lee, Jason R.

    activation of monitoring hosts in the core of the network without direct network administrator intervention operation does not add a burden to the network's administrator. The hardware infrastructure for SCNM and control is usually restricted to network administrators, and only MRTG is commonly accessible by non-administrators

  2. Exploring Hardware Support For Scaling Irregular Applications on Multi-node Multi-core Architectures

    SciTech Connect (OSTI)

    Secchi, Simone; Ceriani, Marco; Tumeo, Antonino; Villa, Oreste; Palermo, Gianluca; Raffo, Luigi

    2013-06-05T23:59:59.000Z

    With the recent emergence of large-scale knowledge dis- covery, data mining and social network analysis, irregular applications have gained renewed interest. Classic cache-based high-performance architectures do not provide optimal performances with such kind of workloads, mainly due to the very low spatial and temporal locality of the irregular control and memory access patterns. In this paper, we present a multi-node, multi-core, fine-grained multi-threaded shared-memory system architecture specifically designed for the execution of large-scale irregular applications, and built on top of three pillars, that we believe are fundamental to support these workloads. First, we offer transparent hardware support for Partitioned Global Address Space (PGAS) to provide a large globally-shared address space with no software library overhead. Second, we employ multi-threaded multi-core processing nodes to achieve the necessary latency tolerance required by accessing global memory, which potentially resides in a remote node. Finally, we devise hardware support for inter-thread synchronization on the whole global address space. We first model the performances by using an analytical model that takes into account the main architecture and application characteristics. We describe the hardware design of the proposed cus- tom architectural building blocks that provide support for the above- mentioned three pillars. Finally, we present a limited-scale evaluation of the system on a multi-board FPGA prototype with typical irregular kernels and benchmarks. The experimental evaluation demonstrates the architecture performance scalability for different configurations of the whole system.

  3. On Issues of Precision for Hardware-based Volume Visualization

    SciTech Connect (OSTI)

    LaMar, E C

    2003-04-11T23:59:59.000Z

    This paper discusses issues with the limited precision of hardware-based volume visualization. We will describe the compositing OVER operator and how fixed-point arithmetic affects it. We propose two techniques to improve the precision of fixed-point compositing and the accuracy of hardware-based volume visualization. The first technique is to perform dithering of color and alpha values. The second technique we call exponent-factoring, and captures significantly more numeric resolution than dithering, but can only produce monochromatic images.

  4. Spent fuel disassembly hardware and other non-fuel bearing components: characterization, disposal cost estimates, and proposed repository acceptance requirements

    SciTech Connect (OSTI)

    Luksic, A.T.; McKee, R.W.; Daling, P.M.; Konzek, G.J.; Ludwick, J.D.; Purcell, W.L.

    1986-10-01T23:59:59.000Z

    There are two categories of waste considered in this report. The first is the spent fuel disassembly (SFD) hardware. This consists of the hardware remaining after the fuel pins have been removed from the fuel assembly. This includes end fittings, spacer grids, water rods (BWR) or guide tubes (PWR) as appropriate, and assorted springs, fasteners, etc. The second category is other non-fuel-bearing (NFB) components the DOE has agreed to accept for disposal, such as control rods, fuel channels, etc., under Appendix E of the standard utiltiy contract (10 CFR 961). It is estimated that there will be approximately 150 kg of SFD and NFB waste per average metric ton of uranium (MTU) of spent uranium. PWR fuel accounts for approximately two-thirds of the average spent-fuel mass but only 50 kg of the SFD and NFB waste, with most of that being spent fuel disassembly hardware. BWR fuel accounts for one-third of the average spent-fuel mass and the remaining 100 kg of the waste. The relatively large contribution of waste hardware in BWR fuel, will be non-fuel-bearing components, primarily consisting of the fuel channels. Chapters are devoted to a description of spent fuel disassembly hardware and non-fuel assembly components, characterization of activated components, disposal considerations (regulatory requirements, economic analysis, and projected annual waste quantities), and proposed acceptance requirements for spent fuel disassembly hardware and other non-fuel assembly components at a geologic repository. The economic analysis indicates that there is a large incentive for volume reduction.

  5. Design Considerations for Deploying Underwater Sensor Networks Raja Jurdak

    E-Print Network [OSTI]

    Lopes, Cristina Videira

    integration have yielded smaller and more powerful processors that are capable of efficiently running acoustic for specialized com- munication hardware and reduces system cost, facili- tating the dense deployment of motes to form under- water acoustic sensor networks. The use of low power generic acoustic hardware and software

  6. Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications

    E-Print Network [OSTI]

    of automated register­transfer level (RTL) VHDL code generation from synchronous dataflow (SDF) graph for mapping applications specified in SDF to parallel digital hardware implementations. Two styles synthesis from SDF graphs is presented. In order to minimize cost while meeting performance require­ ments

  7. Benchmarking Non-Hardware Balance of System (Soft) Costs for

    E-Print Network [OSTI]

    Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results process" or "soft" costs--for residential and commercial photovoltaic (PV) systems. Annual expenditure

  8. Hardware-Assisted Secure Computation Submitted to the Faculty

    E-Print Network [OSTI]

    Hardware-Assisted Secure Computation A Thesis Submitted to the Faculty in partial fulfillment community has worked on Secure Multiparty Computation (SMC) for more than two decades, and has produced many and some due to the blinding. However, secure coprocessors like the IBM 4758 have actual security

  9. Software-based Empirical Extraction of Hardware Energy Models

    E-Print Network [OSTI]

    Chiueh, Tzi-cker

    -based battery-operated portables (currently laptops) without any special hardware support other than a mechanism hand battery technology hasn't improved significantly, which implies that lighter batteries mean lesser capacity. This demands that battery power be managed critically, which has resulted in the recent thrust

  10. Towards a Software-Hardware Co-Designed Resilient System

    E-Print Network [OSTI]

    Adve, Sarita

    -designed approach for detecting, diagnosing, recovering from, and repairing/reconfiguring around hardware errors. I errors due to radiation from external sources and the IC package, design defects, aggressive design, process variations, cross-talk, and so on [1]. Such a scenario requires mechanisms to detect, diagnose

  11. Production-Run Software Failure Diagnosis via Hardware Performance Counters

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Production-Run Software Failure Diagnosis via Hardware Performance Counters Joy Arulraj Po and huge financial loss during production runs. Tools that diagnose production-run failures with low is sometimes over 100%, for concurrency-bug failure diagnosis and hence are not suitable for production

  12. Hardware Assistance for Trustworthy Systems through 3-D Integration

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Hardware Assistance for Trustworthy Systems through 3-D Integration Jonathan Valamehr , Mohit a separate control plane, stacked using 3- D integration, that allows for the function and economics computation plane by at- taching an optional control plane using 3-D integration. In a developed example we

  13. Graphics Hardware (2006) M. Olano, P. Slusallek (Editors)

    E-Print Network [OSTI]

    Boldyreva, Alexandra

    Graphics Hardware (2006) M. Olano, P. Slusallek (Editors) A Digital Rights Enabled Graphics of Computing Georgia Institute of Technology, Atlanta, GA 30332 Abstract With the emergence of 3D graphics become a new design challenge. This paper presents a novel protection model for commercial graphics data

  14. A Hardware Interface for Hashing Algorithms December 17, 2008

    E-Print Network [OSTI]

    implementation in C, built on top of a standard programmer's inter- face (API). This greatly improves such as eBASH2 relies on a standard API to automate the performance evalu- ation process. Besides standard with a standard interface (similar to an API), hardware designers prefer to make comparisons that largely ignore

  15. Flexible Reference-Counting-Based Hardware Acceleration for Garbage Collection

    E-Print Network [OSTI]

    Mutlu, Onur

    Flexible Reference-Counting-Based Hardware Acceleration for Garbage Collection José A. Joao Onur automatic memory management (garbage col- lection) are increasingly used to write all kinds of applications be- cause they provide clear software engineering and security advan- tages. Unfortunately, garbage

  16. Optimization of Industrial Applications with Hardware in the Loop

    E-Print Network [OSTI]

    Boyer, Edmond

    of industrial robots integrated in complex robot cells. Trajectory optimizers are usually based on models and with changes of the robot task. Index Terms Industrial robotics, Trajectory optimization, Derivative free with Hardware in the Loop I. INTRODUCTION To reduce production costs, industrial robots must work as fast

  17. Database Architecture (R)evolution: New Hardware vs. New Software

    E-Print Network [OSTI]

    Database Architecture (R)evolution: New Hardware vs. New Software Stavros Harizopoulos (Panel and, in some cases, reinvent the traditional DBMS architecture. In the space of data warehousingDB: An Architectural Hybrid of MapReduce and DBMS Technologies for Analytical Workloads," in Proc. PVLDB'09, 2009. [3

  18. ARCHITECTURE AND MAIN HARDWARE COMPONENTS OF THE FEL CONTROL SYSTEM

    E-Print Network [OSTI]

    Kozak, Victor R.

    ARCHITECTURE AND MAIN HARDWARE COMPONENTS OF THE FEL CONTROL SYSTEM E.N. Dementiev, V.R. Kozak, E.V. Tararyshkin, A.G. Tribendis, E.N. Shubin, Abstract This article considers the architecture of the control architecture depended on several factors specific to both the facility itself and the control equipment used

  19. Hardware implementation of secure Shamir's secret sharing scheme

    E-Print Network [OSTI]

    Karpovsky, Mark

    Hardware implementation of secure Shamir's secret sharing scheme Pei Luo and Andy Yu-Lun Lin Electrical and Computer Engineering Boston University Email: markkar@bu.edu Abstract--Shamir's secret sharing scheme is an effective way to distribute secret to a group of shareholders. But this scheme is vulnerable

  20. A Faster Hardware Implementation of RSA Ajay C Shantilal

    E-Print Network [OSTI]

    1 A Faster Hardware Implementation of RSA Algorithm Ajay C Shantilal Department of Electrical- cation systems. Central tools for achieving system security are cryptographic algorithms. For performance at the Department of Electrical & Computer Engineering, Oregon State University, Corvallis, Oregon 97331. E

  1. Extended Abstract: Trustworthy System Security through 3-D Integrated Hardware

    E-Print Network [OSTI]

    Irvine, Cynthia E.

    , isolation, and protec- tion. This problem is exacerbated by the movement to multi-core processors since@nps.edu While hardware resources in the form of both tran- sistors and full microprocessor cores are now performance feature. To address these problems, we are pursuing a radical transformation in the way

  2. Extended Abstract: Trustworthy System Security through 3-D Integrated Hardware

    E-Print Network [OSTI]

    Kastner, Ryan

    , isolation, and protec- tion. This problem is exacerbated by the movement to multi-core processors since@nps.edu While hardware resources in the form of both tran- sistors and full microprocessor cores are now these problems, we are pursuing a radical transformation in the way trustworthy systems are de- veloped

  3. Code Coverage Testing Using Hardware Performance Monitoring Support

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    attempt to lower overhead by leveraging exist- ing Hardware Performance Monitoring (HPM) support complete cov- erage information. This paper extends the HPM approach in two ways. First, it utilizes. This paper shows that although HPM is gener- ally used to guide performance improvement efforts

  4. Description Sound Devices USBPre is a complete, portable hardware

    E-Print Network [OSTI]

    Description Sound Devices USBPre is a complete, portable hardware interface for PC and Mac audio electronics, and S/PDIF digital sources with personal computers. Its high-performance, 24-bit 9.x and Windows. SOUND DEVICES #12;Specifications Frequency Response: (reference 1 kHz) 10 Hz - 20 k

  5. Energino: a Hardware and Software Solution for Energy Consumption Monitoring

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ­aware and energy­efficient protocols and algorithms for wireless networks. However, there is considerable dearth for designing energy efficient network protocols and architectures for broadband wireless access networks efficient protocols and algorithms for wireless networks. Nevertheless, energy consumption models used

  6. amebocyte lysate lal: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    are being increasingly used in various areas including security, transportation, manufacturing, supply chain, healthcare, biomedical, etc. A unit system with hardware California...

  7. A congestion control scheme for wireless sensor networks

    E-Print Network [OSTI]

    Xiong, Yunli

    2005-08-29T23:59:59.000Z

    In wireless sensor networks (WSN), nodes have very limited power due to hardware constraints. Packet losses and retransmissions resulting from congestion cost precious energy and shorten the lifetime of sensor nodes. This problem motivates the need...

  8. Devices and Circuits for Nanoelectronic Implementation of Artificial Neural Networks

    E-Print Network [OSTI]

    Devices and Circuits for Nanoelectronic Implementation of Artificial Neural Networks A Dissertation Implementation of Artificial Neural Networks by ¨Ozg¨ur T¨urel Doctor of Philosophy in Physics and Astronomy. Unfortunately, most artificial neural networks, either software or hardware, do not provide either the speed

  9. Toward Lean Hardware/Software System Development: An Evaluation of Selected Complex Electronic System Development Methodologies

    E-Print Network [OSTI]

    Hou, Alex

    The development of electronic hardware and software has become a major component of major DoD systems. This report surveys a wide set of new electronic hardware/software development methods and develops a system to evaluate ...

  10. 0 + 0 = 1 : the appliance model of selling software bundled with hardware

    E-Print Network [OSTI]

    Hein, Bettina

    2007-01-01T23:59:59.000Z

    The business model of selling software bundled with hardware is called the appliance model. As hardware becomes less and less expensive and open source software is being offered for free, the traditional business model of ...

  11. Hardware Commissioning For the BNL-FNAL-LBNL LHC Accelerator Collaboration

    E-Print Network [OSTI]

    Large Hadron Collider Program

    Hardware Commissioning Jim Strait For the BNL-FNAL-LBNL LHC Accelerator Collaboration DOE Review 10-built IR feed boxes (LBNL) ­ US-built specialized absorbers (LBNL) #12;DOE Review ­ 10-11 June 03 Hardware

  12. Networked VAX/LSI/CAMAC data acquisition system development

    SciTech Connect (OSTI)

    Melvin, J.D.; Clark, D.L.; Mendenhall, M.H.; Tombrello, T.A.

    1983-10-01T23:59:59.000Z

    Recent development of the Caltech data acquisition system installed in 1981, which runs on a VAX-11/750, a Peritek Q-bus network, LSI-11s, and CAMAC, is described. In this system, the DEC VMS and RT-11 operating systems are supported on the VAX ''host'' and LSI-11 ''front-end'' computers by a VMS device driver and network host program, and a bootable RT-11 device driver. Network ''utility'' and ''control'' programs provide general purpose support for communication between front-end and host software. Data acquisition software tools are provided for writing programs to run nuclear physics experiments. A system similar to Caltech's was installed at the University of Rochester in 1982. The network has been tested for speed and real-time response. After including all software overhead required by data acquisition, it was found that the system could transfer buffers and acknowledge their receipt at a net speed of 127 KB per second with a 35% load on the host computer. The network software is currently being rehosted on Ethernet hardware at Caltech in a multiple host - many front-end computer configuration. Compatibility with the current Peritek network software will be maintained.

  13. Summary of multi-core hardware and programming model investigations

    SciTech Connect (OSTI)

    Kelly, Suzanne Marie; Pedretti, Kevin Thomas Tauke; Levenhagen, Michael J.

    2008-05-01T23:59:59.000Z

    This report summarizes our investigations into multi-core processors and programming models for parallel scientific applications. The motivation for this study was to better understand the landscape of multi-core hardware, future trends, and the implications on system software for capability supercomputers. The results of this study are being used as input into the design of a new open-source light-weight kernel operating system being targeted at future capability supercomputers made up of multi-core processors. A goal of this effort is to create an agile system that is able to adapt to and efficiently support whatever multi-core hardware and programming models gain acceptance by the community.

  14. Automating Hardware and Software Evolution Analysis Brian Dougherty, Jules White, Chris Thompson, and Douglas C. Schmidt

    E-Print Network [OSTI]

    Schmidt, Douglas C.

    manufactur- ers know how much it costs to buy windshield wiper hardware/software components, as well

  15. Accounting for Classical Hardware in the Control of Quantum Devices

    E-Print Network [OSTI]

    Ian N. Hincks; Christopher Granade; Troy W. Borneman; D. G. Cory

    2014-09-29T23:59:59.000Z

    High fidelity coherent control of quantum systems is critical to building quantum devices and quantum computers. We provide a general optimal control framework for designing control sequences that account for hardware control distortions while maintaining robustness to environmental noise. We demonstrate the utility of our algorithm by presenting examples of robust quantum gates optimized in the presence of nonlinear distortions. We show that nonlinear classical controllers do not necessarily incur additional computational cost to pulse optimization, enabling more powerful quantum devices.

  16. An Effective EMS Hardware and Software Interface- The Trained Operator

    E-Print Network [OSTI]

    Cherry, C. L.

    AN EFFECTIVE EMS HARDWARE AND SOFTWARE THE TRAINED OPER~TQR Christene ~. Cherry Johnson Controls Institute INTERFACE Milwaukee, ABSTRAC'l' A computerized Energy Management Sys tem (EMS) is a tool that allows the user to moni tor... the importance of proper system design, installation and program application. The importance of having a trained EMS operator is less recognized. The purpose of this paper is to focus on structured training programs and how they can improve the EMS...

  17. Corrosion Testing of Stainless Steel Fuel Cell Hardware

    SciTech Connect (OSTI)

    Wilson, M.S.; Zawodzinski, C.; Gottesfeld, S.

    1998-11-01T23:59:59.000Z

    Metal hardware is gaining increasing interest in polymer electrolyte fuel cell (PEFC) development as a possible alternative to machined graphite hardware because of its potential for low-cost manufacturing combined with its intrinsic high conductivity, minimal permeability and advantageous mechanical properties. A major barrier to more widespread use of metal hardware has been the susceptibility of various metals to corrosion. Few pure metals can withstand the relatively aggressive environment of a fuel cell and thus the choices for hardware are quite limited. Precious metals such as platinum or gold are prohibitively expensive and so tend to be utilized as coatings on inexpensive substrates such as aluminum or stainless steel. The main challenge with coatings has been to achieve pin-hole free surfaces that will remain so after years of use. Titanium has been used to some extent and though it is very corrosion-resistant, it is also relatively expensive and often still requires some manner of surface coating to prevent the formation of a poorly conducting oxide layer. In contrast, metal alloys may hold promise as potentially low-cost, corrosion-resistant materials for bipolar plates. The dozens of commercially available stainless steel and nickel based alloys have been specifically formulated to offer a particular advantage depending upon their application. In the case of austenitic stainless steels, for example, 316 SS contains molybdenum and a higher chromium content than its more common counterpart, 304 SS, that makes it more noble and increases its corrosion resistance. Likewise, 316L SS contains less carbon than 316 SS to make it easier to weld. A number of promising corrosion-resistant, highly noble alloys such as Hastelloy{trademark} or Duplex{trademark} (a stainless steel developed for seawater service) are available commercially, but are expensive and difficult to obtain in various forms (i.e. wire screen, foil, etc.) or in small amounts for R and D purposes.

  18. ETTM: A Scalable Fault Tolerant Network Manager Colin Dixon Hardeep Uppal Vjekoslav Brajkovic Dane Brandon

    E-Print Network [OSTI]

    Ratnasamy, Sylvia

    and efficiently managing network resources at a packet granularity. Our aim is to pro- vide network administrators administrator. Our approach leverages the trend to open management interfaces on network switches as well target is enterprise-scale networks with common administrative control over most of the hardware

  19. Benchmarking in Wireless Networks Shafqat Ur Rehman, Thierry Turletti, Walid Dabbous

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Benchmarking in Wireless Networks Shafqat Ur Rehman, Thierry Turletti, Walid Dabbous Abstract--Experimentation is evolving as a viable and realistic performance analysis approach in wireless networking research. Realism is provisioned by deploying real software (network stack, drivers, OS), and hardware (wireless cards, network

  20. Fast and Accurate Time-Domain Simulations with Commodity Graphics Hardware

    E-Print Network [OSTI]

    Fast and Accurate Time-Domain Simulations with Commodity Graphics Hardware Gerard S. Baron*1 the efficacy of graphics hardware for the computational electrodynamics community. In particular, we illustrate developments in graphics hardware acceleration provide operations that can be applied to dramatically speed up

  1. Radioisotope thermoelectric generator load and unload sequence from the licensed hardware package system and the trailer system

    SciTech Connect (OSTI)

    Reilly, M.A. [Westinghouse Hanford Company, P.O. Box 1970, MSIN N1-25, Richland, Washington 99352 (United States)

    1995-01-20T23:59:59.000Z

    The Radioisotope Thermoelectric Generator Transportation System, designated as System 100, comprises four major systems. The four major systems are designated as the Packaging System (System 120), Trailer System (System 140), Operations and Ancillary Equipment System (System 160), including the Radioisotope Thermoelectric Generator Transportation System packaging is licensed (regularoty) hardware, certified by the U.S. Department of Energy to be in accordance with Title 10, {ital Code} {ital of} {ital Federal} {ital Regulations}, Part 71 (10 CFR 71). System 140, System 160, and System 180 are nonlicensed (nonregulatory) hardware. This paper focuses on the required interfaces and sequencing of events required by these systems and the shipping and receiving facilities in preparation of the Radioisotope Thermoelectric Generator for space flight. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}

  2. Resolution-independent surface rendering using programmable graphics hardware

    DOE Patents [OSTI]

    Loop, Charles T. (Bellevue, WA); Blinn, James Frederick (Bellevue, WA)

    2008-12-16T23:59:59.000Z

    Surfaces defined by a Bezier tetrahedron, and in particular quadric surfaces, are rendered on programmable graphics hardware. Pixels are rendered through triangular sides of the tetrahedra and locations on the shapes, as well as surface normals for lighting evaluations, are computed using pixel shader computations. Additionally, vertex shaders are used to aid interpolation over a small number of values as input to the pixel shaders. Through this, rendering of the surfaces is performed independently of viewing resolution, allowing for advanced level-of-detail management. By individually rendering tetrahedrally-defined surfaces which together form complex shapes, the complex shapes can be rendered in their entirety.

  3. Battery Hardware in the Loop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromofBatteries from Brine Batteries from BrineHardware in the

  4. New Hardware to be Integrated by Jan 7, 2013

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU - 2SCIENCENew Hardware to be

  5. Creation and Testing of an Artificial Neural Network Based Carbonate Detector for Mars Rovers

    E-Print Network [OSTI]

    Royer, Dana

    carbonate detector capable of running on current and future rover hardware. The detector can identify result in a critical loss of valuable science data. Onboard techniques for identifying 1 0 neural network (ANN) based carbonate detector capable of running on current and future rover hardware

  6. Simultaneous localization and tracking in wireless ad-hoc sensor networks

    E-Print Network [OSTI]

    Taylor, Christopher J. (Christopher Jorgen)

    2005-01-01T23:59:59.000Z

    In this thesis we present LaSLAT, a sensor network algorithm that uses range measurements between sensors and a moving target to simultaneously localize the sensors, calibrate sensing hardware, and recover the target's ...

  7. Optical calibration hardware for the Sudbury Neutrino Observatory

    E-Print Network [OSTI]

    B. A. Moffat; R. J. Ford; F. A. Duncan; K. Graham; A. L. Hallin; C. A. W. Hearns; J. Maneira; P. Skensved; D. R. Grant

    2005-07-19T23:59:59.000Z

    The optical properties of the Sudbury Neutrino Observatory (SNO) heavy water Cherenkov neutrino detector are measured in situ using a light diffusing sphere ("laserball"). This diffuser is connected to a pulsed nitrogen/dye laser via specially developed underwater optical fibre umbilical cables. The umbilical cables are designed to have a small bending radius, and can be easily adapted for a variety of calibration sources in SNO. The laserball is remotely manipulated to many positions in the D2O and H2O volumes, where data at six different wavelengths are acquired. These data are analysed to determine the absorption and scattering of light in the heavy water and light water, and the angular dependence of the response of the detector's photomultiplier tubes. This paper gives details of the physical properties, construction, and optical characteristics of the laserball and its associated hardware.

  8. Knowware: the third star after Hardware and Software

    E-Print Network [OSTI]

    Lu, Ruqian

    2007-01-01T23:59:59.000Z

    This book proposes to separate knowledge from software and to make it a commodity that is called knowware. The architecture, representation and function of Knowware are discussed. The principles of knowware engineering and its three life cycle models: furnace model, crystallization model and spiral model are proposed and analyzed. Techniques of software/knowware co-engineering are introduced. A software component whose knowledge is replaced by knowware is called mixware. An object and component oriented development schema of mixware is introduced. In particular, the tower model and ladder model for mixware development are proposed and discussed. Finally, knowledge service and knowware based Web service are introduced and compared with Web service. In summary, knowware, software and hardware should be considered as three equally important underpinnings of IT industry. Ruqian Lu is a professor of computer science of the Institute of Mathematics, Academy of Mathematics and System Sciences. He is a fellow of Chin...

  9. Using EPICS enabled industrial hardware for upgrading control systems

    SciTech Connect (OSTI)

    Bjorkland, Eric A [Los Alamos National Laboratory; Veeramani, Arun [NATIONAL INSTRUMENTS; Debelle, Thierry [NATIONAL INSTRUMENTS

    2009-01-01T23:59:59.000Z

    Los Alamos National Laboratory has been working with National Instruments (NI) and Cosy lab to implement EPICS Input Output Controller (IOC) software that runs directly on NI CompactRIO Real Time Controller (RTC) and communicates with NI LabVIEW through a shared memory interface. In this presentation, we will discuss our current progress in upgrading the control system at the Los Alamos Neutron Science Centre (LANSCE) and what we have learned about integrating CompactRIO into large experimental physics facilities. We will also discuss the implications of using Channel Access Server for LabVIEW which will enable more commercial hardware platforms to be used in upgrading existing facilities or in commissioning new ones.

  10. Analytical Analysis of Data and Decision Fusion in Sensor Networks

    E-Print Network [OSTI]

    Gupta, Ajay

    accuracy and reliability of sensed readings of a network of wireless devices, while increasing the lifetime the significance of CSP might prompt hardware and software designers to optimize wireless sensor networks operations by simple averaging techniques. In practice, d is much larger than f. Therefore, total

  11. Data Collection and Management Solution for Wireless Sensor Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Data Collection and Management Solution for Wireless Sensor Networks G. De Sousa1 , J.-P. Chanet1 Aubičre cedex, France Correspondent author: gil.de-sousa@cemagref.fr Abstract Wireless sensors networks on wireless sensors, implementing a hardware component-based concept, that allow them to be combined to form

  12. The DARPA WNaN Network Architecture Raytheon BBN Technologies

    E-Print Network [OSTI]

    Ramanathan, Ram

    The DARPA WNaN Network Architecture Jason Redi Raytheon BBN Technologies Cambridge, MA redi@bbn.com Ram Ramanathan Raytheon BBN Technologies Cambridge, MA ramanath@bbn.com Abstract-- The warfighter its goal. WNaN uses networking software from Raytheon BBN Technologies, and radio hardware plus

  13. The Network Pump is a Govern-ment off-the-shelf (GOTS) High As-

    E-Print Network [OSTI]

    The Network Pump® is a Govern- ment off-the-shelf (GOTS) High As- surance "One-Way" Guard that ena of acknowledgement. The Network Pump® implements a NRL- patented algorithm that statistically modulates the delay Pump® works with any operating system on any hardware platform that supports a TCP/IP network. NRL

  14. Countries Gasoline Prices Including Taxes

    Gasoline and Diesel Fuel Update (EIA)

    Selected Countries (U.S. dollars per gallon, including taxes) Date Belgium France Germany Italy Netherlands UK US 51115 6.15 6.08 6.28 6.83 6.96 6.75 3.06 5415 6.14 6.06...

  15. Sponsorship includes: Agriculture in the

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    Sponsorship includes: · Agriculture in the Classroom · Douglas County Farm Bureau · Gifford Farm · University of Nebraska Agricultural Research and Development Center · University of Nebraska- Lincoln Awareness Coalition is to help youth, primarily from urban communities, become aware of agriculture

  16. atlantic region including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (Morchella spp.) are prized wild 18 Probabilistic Projections of Anthropogenic Climate Change Impacts on Precipitation for the Mid-Atlantic Region of the United States* Geosciences...

  17. alice tpc including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    large modulation factors. To observe polarization of the prompt X-ray emission of a Gamma-ray burst (GRB), a large area detector is needed. Diffusion of the electron cloud in a...

  18. acid solutions including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    deduplication and compression with the cloud to reduce the storage footprint as well as CapEx and OpEx costs Chaudhuri, Surajit 265 On Lovelock vacuum solution HEP - Theory (arXiv)...

  19. articles including cerium: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Xing-quan Zhu; T Ryan Gregory; Alex Loukas; Brian A Williams; Igor Antoshechkin; C Titus Brown; Paul W Sternberg; Erich M Schwarz; Pasi K Korhonen; Bronwyn E Campbell; Neil D...

  20. alginate scaffold including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    printf("B"); void* threadfuncb(void *args) printf("C"); printf("D"); 12 Campbell, Andrew T. 7 Generic Films and Fibers from Polysaccharides: Chitosan and Alginate ....

  1. alaska including cultivated: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    printf("B"); void* threadfuncb(void *args) printf("C"); printf("D"); 12 Campbell, Andrew T. 6 Economical Cultivation CiteSeer Summary: ABSTRACT: In Indian...

  2. atmospheres including velocity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    printf("A"); printf("B"); void* threadfuncb(void *args) printf("C"); printf("D"); 12 Campbell, Andrew T. First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14...

  3. anu including biomedical: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    futurestudentsbonuspoints Other pathways are also available through the College of Engineering & Computer Science SpecialAchievements Computing (or equivalent) major or...

  4. actinium isotopes including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Topic Index 1 Discovery of the actinium, thorium, protactinium, and uranium isotopes CERN Preprints Summary: Currently, 31 actinium, 31 thorium, 28 protactinium, and 23 uranium...

  5. aquatic ecosystem including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Washington are in poor health, are not meeting societies expectations, and have elevated hazard for fire, insects, and disease. Diversity in stream habitats and associated...

  6. agents including gadolinium: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de 13 Standard specification for sintered gadolinium oxide-uranium dioxide pellets CERN Preprints Summary: 1.1 This specification is for finished sintered gadolinium...

  7. approach including plasma: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cobure 15 A time-delay approach for the modeling and control of plasma instabilities in thermonuclear fusion Physics Websites Summary: 1 A time-delay approach for the modeling...

  8. agricultural systems including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Yorke, James 259 Testing the INCA model in a small agricultural catchment in southern Finland Hydrology and Earth System Sciences, 8(4), 717728 (2004) EGU Computer Technologies...

  9. acids composition including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MEASURE BOND BETWEEN COMPOSITE AND STEEL GIRDERS???..5 1.3 USE OF COMPOSITE MATERIALS TO PREVENT CRACK PROPOGATION???.9 1.4 CFRP OVERLAY...

  10. activities including modelling: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    nonpoint source models associate pollutant loads almost exclusively agricultural sources: manure, fertilizers, soilplant complexes, and impervious surfaces and those associated...

  11. aqueous medium including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  12. activity profile including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    close to the polarity inversion line (PIL) at the flaring site. At two locations in the umbra we encounter strong fields (approx. 3 kG), as inferred from the Stokes I profiles...

  13. area including remediation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to PD MacMillan, Andrew 117 Reconnaissance Soil Geochemistry at the Riverton Uranium Mill Tailings Remedial Action Site, Fremont Environmental Sciences and Ecology Websites...

  14. african countries including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    takes over, as this provides 1000 times the bandwidth of the satellite links. In the 1970's and 1980's some two dozen large (30 m diameter class) antennas were built in various...

  15. arboviruses including bluetongue: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to display photos, present photos as a gift, or to protect photos being mailed to family or friends. Detach and Return Detach and Return Detach and Return and Return...

  16. adult patients included: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to support family caregivers. Buddy expands a safety net for dementia patients and family caregivers who choose home vs. institutional care. Methods: Six elderly adult...

  17. approaches including eulerian: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the two diagnostics provide similar results for slowly evolving eddies like the first Alboran gyre. However, the Lyapunov exponent is also able to predict the (sub-)mesoscale...

  18. arsenide superconductors including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to disfavor standard symmetric BCS pairing and may favor an inhomogeneous color superconducting phase. The properties of inhomogeneous color superconductors are discussed in...

  19. aerosol monitors including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    schemes which explicitly simulate the microphysical processes that determine the particle size distribution. These models enable aerosol optical ... Ridley, David Andrew 33...

  20. astv including wake: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    small offshore wind farm. The experiments were conducted at varying distances Offshore wind farms have increased in size from the first phase of installation with up to 20...

  1. applications including disposition: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    :www.legal.uncc.edupoliciesps-37.html, the University Archives and Records Management Program has begun using this UNC GeneralUNC Charlotte adopts new UNC (System)...

  2. Hardware Architectures for Data-Intensive Computing Problems: A Case Study for String Matching

    SciTech Connect (OSTI)

    Tumeo, Antonino; Villa, Oreste; Chavarría-Miranda, Daniel

    2012-12-28T23:59:59.000Z

    DNA analysis is an emerging application of high performance bioinformatic. Modern sequencing machinery are able to provide, in few hours, large input streams of data, which needs to be matched against exponentially growing databases of known fragments. The ability to recognize these patterns effectively and fastly may allow extending the scale and the reach of the investigations performed by biology scientists. Aho-Corasick is an exact, multiple pattern matching algorithm often at the base of this application. High performance systems are a promising platform to accelerate this algorithm, which is computationally intensive but also inherently parallel. Nowadays, high performance systems also include heterogeneous processing elements, such as Graphic Processing Units (GPUs), to further accelerate parallel algorithms. Unfortunately, the Aho-Corasick algorithm exhibits large performance variability, depending on the size of the input streams, on the number of patterns to search and on the number of matches, and poses significant challenges on current high performance software and hardware implementations. An adequate mapping of the algorithm on the target architecture, coping with the limit of the underlining hardware, is required to reach the desired high throughputs. In this paper, we discuss the implementation of the Aho-Corasick algorithm for GPU-accelerated high performance systems. We present an optimized implementation of Aho-Corasick for GPUs and discuss its tradeoffs on the Tesla T10 and he new Tesla T20 (codename Fermi) GPUs. We then integrate the optimized GPU code, respectively, in a MPI-based and in a pthreads-based load balancer to enable execution of the algorithm on clusters and large sharedmemory multiprocessors (SMPs) accelerated with multiple GPUs.

  3. A Hardware Test Bed for Measuring IEEE 802.11g Distribution Coordination Function Performance

    E-Print Network [OSTI]

    Kritzinger, Pieter S.

    with fixed packet length. We compare the test bed measurements to widely-accepted analytic and simulationA Hardware Test Bed for Measuring IEEE 802.11g Distribution Coordination Function Performance DCF performance using a test bed built with off-the-shelf hardware. Performance is measured

  4. A UNIFIED HARDWARE/SOFTWARE CO-SYNTHESIS SOLUTION FOR SIGNAL PROCESSING SYSTEMS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A UNIFIED HARDWARE/SOFTWARE CO-SYNTHESIS SOLUTION FOR SIGNAL PROCESSING SYSTEMS Endri Bezati1.lastname}@insa-rennes.fr ABSTRACT This paper presents a methodology to specify from a high- level data-flow description the co-synthesis tools and then an analysis of the generated hardware and soft- ware results are given

  5. Hardware-Oriented Point-Based Rendering of Complex Scenes Liviu Coconu Hans-Christian Hege

    E-Print Network [OSTI]

    Andrzejak, Artur

    Hardware-Oriented Point-Based Rendering of Complex Scenes Liviu Coconu Hans-Christian Hege Abstract High quality point rendering methods have been developed in the last years. A common drawback of these approaches is the lack of hardware support. We propose a novel point rendering technique that yields good

  6. Metodologa de codiseo hardware-software para la computacin paralela distribuida dentro de un chip

    E-Print Network [OSTI]

    Autònoma de Barcelona, Universitat

    es el desarrollo de la arquitectura paralela on-chip. Así, esta fase es puramente hardware y se basa los procesadores de la arquitectura hardware. Una vez hecho esto, ya se podrán desarrollar aplicaciones típicas de procesamiento paralelo distribuido en la arquitectura on-chip generada, y por tanto, el

  7. Applying Reconfigurable Hardware to the Analysis of Multispectral and Hyperspectral Imagery

    E-Print Network [OSTI]

    Theiler, James

    and hyperspectral images. Last year, we reported on an implementation of k­means clustering for multispectral images hardware to accelerate k­means clustering is clear; the disadvantage is the hardware implementation worked to easily change the k­means implemen­ tation for these different data sets is important. For this reason

  8. Graphics for the Masses: A Hardware Rasterization Architecture for Mobile Phones

    E-Print Network [OSTI]

    Graphics for the Masses: A Hardware Rasterization Architecture for Mobile Phones Tomas Akenine typically is one of the most energy-consuming operations, and because mobile phones need to use as little also the power consumption. CR Categories: I.3.1 [Computer Graphics]: Hardware Architecture--Graphics

  9. Network Management Network Management

    E-Print Network [OSTI]

    that pertain to the operation, administration, maintenance, and provisioning of networked systems · Operation deals with keeping the network up (and the service provided by the network) · Administration involvesNetwork Management Pag. 1 Network Management Andrea Bianco Telecommunication Network Group Network

  10. Measuring FLOPS Using Hardware Performance Counter Technologies on LC systems

    SciTech Connect (OSTI)

    Ahn, D H

    2008-09-05T23:59:59.000Z

    FLOPS (FLoating-point Operations Per Second) is a commonly used performance metric for scientific programs that rely heavily on floating-point (FP) calculations. The metric is based on the number of FP operations rather than instructions, thereby facilitating a fair comparison between different machines. A well-known use of this metric is the LINPACK benchmark that is used to generate the Top500 list. It measures how fast a computer solves a dense N by N system of linear equations Ax=b, which requires a known number of FP operations, and reports the result in millions of FP operations per second (MFLOPS). While running a benchmark with known FP workloads can provide insightful information about the efficiency of a machine's FP pipelines in relation to other machines, measuring FLOPS of an arbitrary scientific application in a platform-independent manner is nontrivial. The goal of this paper is twofold. First, we explore the FP microarchitectures of key processors that are underpinning the LC machines. Second, we present the hardware performance monitoring counter-based measurement techniques that a user can use to get the native FLOPS of his or her program, which are practical solutions readily available on LC platforms. By nature, however, these native FLOPS metrics are not directly comparable across different machines mainly because FP operations are not consistent across microarchitectures. Thus, the first goal of this paper represents the base reference by which a user can interpret the measured FLOPS more judiciously.

  11. A Fast hardware Tracker for the ATLAS Trigger system

    E-Print Network [OSTI]

    Pandini, Carlo Enrico; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The trigger system at the ATLAS experiment is designed to lower the event rate occurring from the nominal bunch crossing at 40 MHz to about 1 kHz for a designed LHC luminosity of 10$^{34}$ cm$^{-2}$ s$^{-1}$. After a very successful data taking run the LHC is expected to run starting in 2015 with much higher instantaneous luminosities and this will increase the load on the High Level Trigger system. More sophisticated algorithms will be needed to achieve higher background rejection while maintaining good efficiency for interesting physics signals, which requires a more extensive use of tracking information. The Fast Tracker (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to perform full-scan track-finding at the event rate of 100 kHz. FTK is a dedicated processor based on a mixture of advanced technologies. Modern, powerful, Field Programmable Gate Arrays form an important part of the system architecture, and the combinatorial problem of pattern r...

  12. A Fast hardware tracker for the ATLAS Trigger

    E-Print Network [OSTI]

    Pandini, Carlo Enrico; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The trigger system at the ATLAS experiment is designed to lower the event rate occurring from the nominal bunch crossing at 40 MHz to about 1 kHz for a designed LHC luminosity of 10$^{34}$ cm$^{-2}$ s$^{-1}$. To achieve high background rejection while maintaining good efficiency for interesting physics signals, sophisticated algorithms are needed which require extensive use of tracking information. The Fast TracKer (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to perform track-finding at 100 kHz and based on a mixture of advanced technologies. Modern, powerful Field Programmable Gate Arrays (FPGA) form an important part of the system architecture, and the combinatorial problem of pattern recognition is solved by ~8000 standard-cell ASICs named Associative Memories. The availability of the tracking and subsequent vertex information within a short latency ensures robust selections and allows improved trigger performance for the most difficult sign...

  13. 3D Duo Binary Turbo Decoder Hardware Implementation

    E-Print Network [OSTI]

    Timo Lehngik-emden; Matthias Alles; Norbert Wehn

    Abstract: Each digital communication system needs channel coding to provide a certain quality of service. With the introducation of advanced channel codes like turbo codes and LDPC codes, error correcting near theoretical shannon limit became possible. Many applications require a low error floor in addition. The classical turbo code cannot meet this demand. Increasing the number of components codes, non-binary component codes or code concatenation are solutions for this problem, but come with a large complexity increase. In 2007 a new class of turbo codes, the 3D turbo code, was introduced by Berrou. The 3D turbo code provides a very good convergence and a large minimum distance at a low complexity. To the best of our knowledge this paper presents the first hardware implementation of a 3D turbo decoder. In addition we compare the implementation complexity of the 3D turbo decoder with the 8 and 16-state duo binary turbo decoder on FPGA and in 65nm ASIC technology.

  14. Enlisting Hardware Architecture to Thwart Malicious Code Injection

    E-Print Network [OSTI]

    Lee, Ruby B.

    Internet-connected computing devices pose serious threats to cyber security. In a common type of attack, John P. McGregor, and Zhijie Shi Princeton Architecture Laboratory for Multimedia and Security (PALMS employed to recruit oblivious hosts into distributed denial of service (DDoS) attack networks, which

  15. Fermilab 200 MeV linac control system hardware

    SciTech Connect (OSTI)

    Shea, M.F.

    1984-01-01T23:59:59.000Z

    This report is a description of the present Linac distributed control system that replaces the original Xerox computer and interface electronics with a network of 68000-based stations. In addition to replacing the obsolete Xerox equipment, goals set for the new system were to retain the fast response and interactive nature of the original system, to improve reliability, to ease maintenance, and to provide 15 Hz monitoring of all Linac parameters. Our previous experience with microcomputer installations showed that small, stand-alone control systems are rather straightforward to implement and have been proven to be reliable in operation, even in the severe environment of the 750-keV preaccelerator. The overall design of the Linac system incorporates the concept of many relatively small, stand-alone control systems networked together using an intercomputer communication network. Each station retains its local control system character but takes advantage of the network to allow an operator to interact with the entire Linac from any local console. At the same time, a link to the central computer system allows Host computers to also access parameters in the Linac.

  16. A quantum access network

    E-Print Network [OSTI]

    Bernd Fröhlich; James F. Dynes; Marco Lucamarini; Andrew W. Sharpe; Zhiliang Yuan; Andrew J. Shields

    2014-09-02T23:59:59.000Z

    The theoretically proven security of quantum key distribution (QKD) could revolutionise how information exchange is protected in the future. Several field tests of QKD have proven it to be a reliable technology for cryptographic key exchange and have demonstrated nodal networks of point-to-point links. However, so far no convincing answer has been given to the question of how to extend the scope of QKD beyond niche applications in dedicated high security networks. Here we show that adopting simple and cost-effective telecommunication technologies to form a quantum access network can greatly expand the number of users in quantum networks and therefore vastly broaden their appeal. We are able to demonstrate that a high-speed single-photon detector positioned at a network node can be shared between up to 64 users for exchanging secret keys with the node, thereby significantly reducing the hardware requirements for each user added to the network. This point-to-multipoint architecture removes one of the main obstacles restricting the widespread application of QKD. It presents a viable method for realising multi-user QKD networks with resource efficiency and brings QKD closer to becoming the first widespread technology based on quantum physics.

  17. Hardware In The Loop Simulator in UAV Rapid Development Life Cycle

    E-Print Network [OSTI]

    Adiprawita, Widyawardana; Semibiring, Jaka

    2008-01-01T23:59:59.000Z

    Field trial is very critical and high risk in autonomous UAV development life cycle. Hardware in the loop (HIL) simulation is a computer simulation that has the ability to simulate UAV flight characteristic, sensor modeling and actuator modeling while communicating in real time with the UAV autopilot hardware. HIL simulation can be used to test the UAV autopilot hardware reliability, test the closed loop performance of the overall system and tuning the control parameter. By rigorous testing in the HIL simulator, the risk in the field trial can be minimized.

  18. Power Hardware-in-the-Loop (PHIL) Testing Facility for Distributed Energy Storage (Poster)

    SciTech Connect (OSTI)

    Neubauer.J.; Lundstrom, B.; Simpson, M.; Pratt, A.

    2014-06-01T23:59:59.000Z

    The growing deployment of distributed, variable generation and evolving end-user load profiles presents a unique set of challenges to grid operators responsible for providing reliable and high quality electrical service. Mass deployment of distributed energy storage systems (DESS) has the potential to solve many of the associated integration issues while offering reliability and energy security benefits other solutions cannot. However, tools to develop, optimize, and validate DESS control strategies and hardware are in short supply. To fill this gap, NREL has constructed a power hardware-in-the-loop (PHIL) test facility that connects DESS, grid simulator, and load bank hardware to a distribution feeder simulation.

  19. The NIDS Cluster: Scalable, Stateful Network Intrusion Detection on Commodity Hardware

    E-Print Network [OSTI]

    Tierney, Brian L

    2008-01-01T23:59:59.000Z

    Mai, M. , Paxson, V. , Sommer, R. : Dynamic Application-24) (1999) 2435–2463 3. Sommer, R. , Paxson, V. : ExploitingA. , Paxson, V. , Sommer, R. : Operational Experiences with

  20. Authenticity, Authority, and Assemblage Masculinity: Geek Identity and Hardware Production in Networked Spaces

    E-Print Network [OSTI]

    Ross, Ian W.

    2014-01-01T23:59:59.000Z

    his seminal text on media fandom Textual Poachers, discussesbe associated with the levels of fandom seen in the kinds oforiented digital sites of fandom that I discuss throughout

  1. Authenticity, Authority, and Assemblage Masculinity: Geek Identity and Hardware Production in Networked Spaces

    E-Print Network [OSTI]

    Ross, Ian W.

    2014-01-01T23:59:59.000Z

    firearm legislation and the politics of the group specifically has clearly been affected by the group’s appropriation of 3D printing

  2. Multiply-agile encryption in high speed communication networks

    SciTech Connect (OSTI)

    Pierson, L.G. [Sandia National Labs., Albuquerque, NM (United States); Witzke, E.L. [RE/SPEC Inc., Albuquerque, NM (United States)

    1997-05-01T23:59:59.000Z

    Different applications have different security requirements for data privacy, data integrity, and authentication. Encryption is one technique that addresses these requirements. Encryption hardware, designed for use in high-speed communications networks, can satisfy a wide variety of security requirements if that hardware is key-agile, robustness-agile and algorithm-agile. Hence, multiply-agile encryption provides enhanced solutions to the secrecy, interoperability and quality of service issues in high-speed networks. This paper defines these three types of agile encryption. Next, implementation issues are discussed. While single-algorithm, key-agile encryptors exist, robustness-agile and algorithm-agile encryptors are still research topics.

  3. Extreme Balance of System Hardware Cost Reduction (BOS-X) Funding Opportunity

    Broader source: Energy.gov [DOE]

    Under the Extreme Balance of System Hardware Cost Reduction (BOS-X) program, DOE is funding new components and system designs to overcome scientific, technological, and engineering barriers to...

  4. Lpics: a Hybrid Hardware-Accelerated Relighting Engine for Computer Cinematography

    E-Print Network [OSTI]

    Pellacini, Fabio

    Lpics: a Hybrid Hardware-Accelerated Relighting Engine for Computer Cinematography Fabio Pellacini cinematography, the process of lighting design in- volves placing and configuring lights to define the visual

  5. Medical Hardware for the Space Environment: An Engineering Experience at the National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Reyna, Baraquiel

    2011-10-21T23:59:59.000Z

    The complexity and amount of medical hardware needed by National Aeronautics and Space Administration (NASA) constantly shifts with mission requirements. Early missions such as Mercury, Gemini, and Apollo required minimal, relatively non...

  6. Exploring the Potential of Performance Monitoring Hardware to Support Run-time

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    through on-chip Hardware Performance Monitoring (HPM) support, it is not clear whether this tech- nology can effectively guide a run-time optimization framework. To date the HPM information of various

  7. Keeping Secrets in Hardware: the Microsoft Xbox(TM) Case Study

    E-Print Network [OSTI]

    Huang, Andrew "bunnie"

    2002-05-26T23:59:59.000Z

    This paper discusses the hardware foundations of the cryptosystem employed by the Xbox(TM) video game console from Microsoft. A secret boot block overlay is buried within a system ASIC. This secret boot block decrypts and ...

  8. Computing Lennard-Jones Potentials and Forces with Reconfigurable Hardware

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    dynamics simulations. This architecture employs IEEE 754 double precision floating point units, including Department of Electrical Engineering-Systems University of Southern California Los Angeles, CA Abstract

  9. Energy harvesting to power sensing hardware onboard wind turbine blade

    SciTech Connect (OSTI)

    Carlson, Clinton P [Los Alamos National Laboratory; Schichting, Alexander D [Los Alamos National Laboratory; Quellette, Scott [Los Alamos National Laboratory; Farinholt, Kevin M [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory

    2009-10-05T23:59:59.000Z

    Wind turbines are becoming a larger source of renewable energy in the United States. However, most of the designs are geared toward the weather conditions seen in Europe. Also, in the United States, manufacturers have been increasing the length of the turbine blades, often made of composite materials, to maximize power output. As a result of the more severe loading conditions in the United States and the material level flaws in composite structures, blade failure has been a more common occurrence in the U.S. than in Europe. Therefore, it is imperative that a structural health monitoring system be incorporated into the design of the wind turbines in order to monitor flaws before they lead to a catastrophic failure. Due to the rotation of the turbine and issues related to lightning strikes, the best way to implement a structural health monitoring system would be to use a network of wireless sensor nodes. In order to provide power to these sensor nodes, piezoelectric, thermoelectric and photovoltaic energy harvesting techniques are examined on a cross section of a CX-100 wind turbine blade in order to determine the feasibility of powering individual nodes that would compose the sensor network.

  10. Demonstration of Datacenter Automation Software and Hardware (DASH) at the California Franchise Tax Board

    E-Print Network [OSTI]

    Bell, Geoffrey C.

    2010-01-01T23:59:59.000Z

    cooling units in a datacenter may be networked for remotecooling units in a datacenter may be networked for remote

  11. automatic control system: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    system including a detector overview, operation aspects and hardware control through a SCADA system, WinCC OA. Oleiro Seabra, Luis Filipe; The ATLAS collaboration 2015-01-01 389...

  12. automatic control systems: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    system including a detector overview, operation aspects and hardware control through a SCADA system, WinCC OA. Oleiro Seabra, Luis Filipe; The ATLAS collaboration 2015-01-01 389...

  13. New Paradigm for Seismic Networks: Crowd-Sourced Seismic Networks,

    E-Print Network [OSTI]

    Greer, Julia R.

    #12;New Paradigm for Seismic Networks: Crowd-Sourced Seismic Networks, including Buildings Tom Egill Hauksson #12;SCSN: what does it encompass? · ~360 Seismic Stations · ~60 stations from partners SCSN/SCEDC total of ~26 FTE's #12;Crowd Sourced Networks · Current broadband seismic network

  14. Hardware Prototyping of Two-Way Relay Systems

    E-Print Network [OSTI]

    Wu, Qiong

    2012-10-19T23:59:59.000Z

    , including Orthogonal Frequency-Division Multiplexing (OFDM) frame synchronization at the receiver, source to source node synchronization, and handshaking between the sources and relay nodes. Those synchronization methods control the behavior of the two...

  15. A New Error Control Scheme for Packetized Voice over HighSpeed Local Area Networks

    E-Print Network [OSTI]

    Liebeherr, Jörg

    propose a new error control mechanism for packet voice, referred to as Slack ARQ (S­ARQ). S­ARQ is based or priority channels. It does not require hardware support, imposes little overhead on network resources use of network resources than circuit switching. Statistical multiplexing, however, causes delay

  16. PC-based PCM (Pulse Code Modulation) telemetry data reduction system hardware

    SciTech Connect (OSTI)

    Simms, D.A.; Butterfield, C.P.

    1990-02-01T23:59:59.000Z

    The Solar Energy Research Institute's (SERI) Wind Research Program is using pulse code modulation (PCM) telemetry systems to study horizontal-axis wind turbines. SERI has developed a low-cost PC-based PCM data acquisition system to facilitate quick PCM data analysis in the field. The SERI PC-PCM system consists of AT-compatible hardware boards for decoding and combining PCM data streams and DOS software for control and management of data acquisition. Up to four boards can be installed in a single PC, providing the capability to combine data from four PCM streams direct to disk or memory. This paper describes the SERI PC-PCM system hardware, focusing on the practicality of PC-based PCM data reduction. A related paper highlights our comprehensive PCM data management software program which can be used in conjunction with this hardware to provide full quick-look'' data processing and display. The PC-PCM hardware boards support a subset of the Inter-Range Instrumentation Group (IRIG) PCM standard, designed to synchronize and decommutate NRZ or Bi-Phase L PCM streams in the range of 1 to 800 Kbits/sec at 8 to 12 bits per word and 2 to 64 words per frame. Multiple PCM streams (at various rates) can be combined and interleaved into a contiguous digital time series. Maximum data throughput depends on characteristics of the PC hardware, such as CPU rate and disk access speed. 7 refs., 6 figs., 4 tabs.

  17. Co-design of software and hardware to implement remote sensing algorithms

    SciTech Connect (OSTI)

    Theiler, J. P. (James P.); Frigo, J. (Janette); Gokhale, M. (Maya); Szymanski, J. J. (John J.)

    2001-01-01T23:59:59.000Z

    Both for offline searches through large data archives and for onboard computation at the sensor head, there is a growing need for ever-more rapid processing of remote sensing data. For many algorithms of use in remote sensing, the bulk of the processing takes place in an 'inner loop' with a large number of simple operations. For these algorithms, dramatic speedups can often be obtained with specialized hardware. The difficulty and expense of digital design continues to limit applicability of this approach, but the development of new design tools is making this approach more feasible, and some notable successes have been reported. On the other hand, it is often the case that processing can also be accelerated by adopting a more sophisticated algorithm design. Unfortunately, a more sophisticated algorithm is much harder to implement in hardware, so these approaches are often at odds with each other. With careful planning, however, it is sometimes possible to combine software and hardware design in such a way that each complements the other, and the final implementation achieves speedup that would not have been possible with a hardware-only or a software-only solution. We will in particular discuss the co-design of software and hardware to achieve substantial speedup of algorithms for multispectral image segmentation and for endmember identification.

  18. Shad-o-Snap X-Ray Camera Hardware Manual

    E-Print Network [OSTI]

    -o-Snap x-ray camera is a complete, stand-alone x-ray imaging device featuring "smart" microprocessor-controlled camera electronics and a convenient USB interface. The plug- and-play interface allows easy control by the silicon photodiodes. The Shad-o-Snap camera also includes electronics to digitize the video signal

  19. Functioning Hardware from Functional Programs Stephen A. Edwards

    E-Print Network [OSTI]

    Salzman, Daniel

    distributed memory systems. Transformations include scheduling arithmetic operations onto spe- ci c data paths, replacing recursion with iteration, and improving data locality by inlining recursive types. A compiler and waiting a year would bring bigger, faster chips with comparable prices and power consumption, thanks

  20. Portals 4 network API definition and performance measurement

    SciTech Connect (OSTI)

    Brightwell, R. B.

    2012-03-01T23:59:59.000Z

    Portals is a low-level network programming interface for distributed memory massively parallel computing systems designed by Sandia, UNM, and Intel. Portals has been designed to provide high message rates and to provide the flexibility to support a variety of higher-level communication paradigms. This project developed and analyzed an implementation of Portals using shared memory in order to measure and understand the impact of using general-purpose compute cores to handle network protocol processing functions. The goal of this study was to evaluate an approach to high-performance networking software design and hardware support that would enable important DOE modeling and simulation applications to perform well and to provide valuable input to Intel so they can make informed decisions about future network software and hardware products that impact DOE applications.

  1. Instruction-Level Characterization of Scientific Computing Applications Using Hardware Performance Counters

    SciTech Connect (OSTI)

    Luo, Y.; Cameron, K.W.

    1998-11-24T23:59:59.000Z

    Workload characterization has been proven an essential tool to architecture design and performance evaluation in both scientific and commercial computing areas. Traditional workload characterization techniques include FLOPS rate, cache miss ratios, CPI (cycles per instruction or IPC, instructions per cycle) etc. With the complexity of sophisticated modern superscalar microprocessors, these traditional characterization techniques are not powerful enough to pinpoint the performance bottleneck of an application on a specific microprocessor. They are also incapable of immediately demonstrating the potential performance benefit of any architectural or functional improvement in a new processor design. To solve these problems, many people rely on simulators, which have substantial constraints especially on large-scale scientific computing applications. This paper presents a new technique of characterizing applications at the instruction level using hardware performance counters. It has the advantage of collecting instruction-level characteristics in a few runs virtually without overhead or slowdown. A variety of instruction counts can be utilized to calculate some average abstract workload parameters corresponding to microprocessor pipelines or functional units. Based on the microprocessor architectural constraints and these calculated abstract parameters, the architectural performance bottleneck for a specific application can be estimated. In particular, the analysis results can provide some insight to the problem that only a small percentage of processor peak performance can be achieved even for many very cache-friendly codes. Meanwhile, the bottleneck estimation can provide suggestions about viable architectural/functional improvement for certain workloads. Eventually, these abstract parameters can lead to the creation of an analytical microprocessor pipeline model and memory hierarchy model.

  2. Social Networking? Secure Networking?

    E-Print Network [OSTI]

    Chapman, Michael S.

    Social Networking? Secure Networking? Teaching & Learning Technology Roundtable February 2010 #12 ­ The intent behind the current security measures in place at OHSU ­ The OHSU Social Networking Guidelines 2. To begin a campus wide dialogue exploring the changing world of online social networking and it

  3. Hardware/Software Solution Unifying DALI, IBECS, and BACnet

    SciTech Connect (OSTI)

    Koch, Ed; Rubinstein, Francis; Sila, Kiliccote

    2004-12-01T23:59:59.000Z

    The goal of this project was to investigate broader building-level systems/strategies that enable further energy savings and control. This project investigated the potential savings offered by broader centralized control features and the potential advantages they may add to this system through such features as addressability and load shedding. This report documents the results of LBNL's work in this area. This report focuses on building-level systems and strategies and a multi-protocol gateway solution that is indifferent to the specific choice of lighting control/communications technique used to control the office lighting. The elegance of the IEEE 1451 intelligent gateway proposed in this report is that the overall building communications system should work regardless of whether the office lighting is controlled by DALI, UPB, IBECS, ZigBee or any other accepted communications protocol. Many lighting control companies have robust local lighting control systems with functional strategies for the office level controls. What the industry lacks is the efficient integration of local controls with building controls and energy management systems in order to utilize sensory data. LBNL proposes a framework for a gateway with a level of embedded intelligence, linking various device area networks (DANs) to building control systems. The proposed gateway acts as a translator for DANs enabling them to talk to each other and with a building control system. Just like a PC recognizing a mouse as soon as it is plugged in, the gateway will recognize devices with embedded or virtual Transducer Electronic Data Sheet (TEDS). This presents a truly ''plug and play'' capability for the building control systems. As a result, sensory data can be automatically calibrated, collected and utilized with minimal labor for effective and efficient building controls. The mature market cost of the proposed gateway is not yet known. But current product suggest that $1000/bridge is achievable today with off-the-shelf components and wireless routers that are common today for computer applications do not have significantly lower capabilities than the $1000 product and are now available at $100-$200. If it is configured so that it caters to commissioning, maintenance and energy monitoring, its benefit from a mere energy saving equipment can be extended to reduction in installation and maintenance costs.

  4. CSP 543: Multimedia Networking Atel Puri, Tsuhan Chen, Multimedia Systems, Standards, and Networks, ISBN 082479303X

    E-Print Network [OSTI]

    Heller, Barbara

    CSP 543: Multimedia Networking Texts Atel Puri, Tsuhan Chen, Multimedia Systems, Standards for multimedia networks. Topics covered include coding, compression, streaming, synchronization, QoS, and adaptation. Current tools for multimedia networking will be surveyed. Issues with multimedia application

  5. Merging photovoltaic hardware development with hybrid applications in the USA

    SciTech Connect (OSTI)

    Bower, W.

    1993-11-01T23:59:59.000Z

    The use of multi-source power systems, ``hybrids,`` is one of the fastest growing, potentially significant markets for photovoltaic (PV) system technology today. Cost-effective applications today include remote facility power, remote area power supplies, remote home and village power, and power for dedicated electrical loads such as communications systems. This market sector is anticipated to be one of the most important growth opportunities for PV over the next five years. The US Department of Energy (USDOE) and Sandia National Laboratories (SNL) are currently engaged in an effort to accelerate the adoption of market-driven PV hybrid power systems and to effectively integrate PV with other energy sources. This paper provides details of this development and the ongoing hybrid activities in the United States. Hybrid systems are the primary focus of this paper.

  6. Developing and Deploying Advanced Algorithms to Novel Supercomputing Hardware

    E-Print Network [OSTI]

    Robert J. Brunner; Volodymyr V. Kindratenko; Adam D. Myers

    2007-11-21T23:59:59.000Z

    The objective of our research is to demonstrate the practical usage and orders of magnitude speedup of real-world applications by using alternative technologies to support high performance computing. Currently, the main barrier to the widespread adoption of this technology is the lack of development tools and case studies that typically impede non-specialists that might otherwise develop applications that could leverage these technologies. By partnering with the Innovative Systems Laboratory at the National Center for Supercomputing, we have obtained access to several novel technologies, including several Field-Programmable Gate Array (FPGA) systems, NVidia Graphics Processing Units (GPUs), and the STI Cell BE platform. Our goal is to not only demonstrate the capabilities of these systems, but to also serve as guides for others to follow in our path. To date, we have explored the efficacy of the SRC-6 MAP-C and MAP-E and SGI RASC Athena and RC100 reconfigurable computing platforms in supporting a two-point correlation function which is used in a number of different scientific domains. In a brute force test, the FPGA based single-processor system has achieved an almost two orders of magnitude speedup over a single-processor CPU system. We are now developing implementations of this algorithm on other platforms, including one using a GPU. Given the considerable efforts of the cosmology community in optimizing these classes of algorithms, we are currently working to implement an optimized version of the basic family of correlation functions by using tree-based data structures. Finally, we are also exploring other algorithms, such as instance-based classifiers, power spectrum estimators, and higher-order correlation functions that are also commonly used in a wide range of scientific disciplines.

  7. Clearing, Sanitization, and Destruction of Information System Storage Media, Memory Devices, and Related Hardware Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-06-21T23:59:59.000Z

    The manual establishes the DOE requirements and responsibilities for clearing, sanitizing, and destroying DOE information system storage media, memory devices, and related hardware to ensure that no unauthorized information can be retrieved. Canceled by DOE N 205.17. Cancels DOE N 205.12

  8. Hardware Support for QoS-based Function Allocation in Reconfigurable Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -device systems. Our approach adapts methodologies from the domain of knowledge-based systems which can be used researchers already have implemented low budget embedded operating systems running on soft-core or hardHardware Support for QoS-based Function Allocation in Reconfigurable Systems Michael Ullmann

  9. Hardware-Based Support Vector Machine Classification in Logarithmic Number Systems

    E-Print Network [OSTI]

    Pottenger, William M.

    for its energy-efficient properties [3,9]. Successful deployment of logarithmic functionality in neuralHardware-Based Support Vector Machine Classification in Logarithmic Number Systems Faisal M. Khan loss in classification accuracy. I. INTRODUCTION Cognitive systems capable of gathering information

  10. Technology Innovation (Hardware, Software, and What You Can Learn from Startup

    E-Print Network [OSTI]

    Jacob, Bruce

    Technology Innovation (Hardware, Software, and What You Can Learn from Startup Companies) Bruce Principles 1 #12;ABSTRACT Innovation is highly sought after: it is extremely valuable, extremely rare, and extremely difficult to do. An executive desiring an innovative company should first realize that innovation

  11. Hardware Accelerated Point Rendering of Isosurfaces J. Andreas Brentzen Niels Jrgen Christensen

    E-Print Network [OSTI]

    Hardware Accelerated Point Rendering of Isosurfaces J. Andreas Bærentzen Niels Jørgen Christensen techniques, and in- teractive applications require fast generation and rendering of surface primitives technique for point scaling using distance attenuation which makes it possible to render points stored

  12. RealTime Robot Motion Planning Using Rasterizing Computer Graphics Hardware

    E-Print Network [OSTI]

    Richardson, David

    , Ithaca, N.Y. 14853 y Assistant Professor and Director, Computer Science Robotics Labora­ tory, DepartmentReal­Time Robot Motion Planning Using Rasterizing Computer Graphics Hardware Jed Lengyel \\Lambda Mark Reichert \\Lambda Bruce R. Donald y Donald P. Greenberg z Abstract We present a real­time robot

  13. Hardware/Software Co-design for Energy-Efficient Seismic Modeling

    E-Print Network [OSTI]

    Hardware/Software Co-design for Energy-Efficient Seismic Modeling Jens Krueger , David Donofrio of conventional cluster technology has prompted investigation of architectural alternatives that offer higher computational efficiency. In this work, we compare the per- formance and energy efficiency of three

  14. A Simple and Effective Hardware-in-the-Loop Simulation Platform for Urban Electric Vehicles

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Simple and Effective Hardware-in-the-Loop Simulation Platform for Urban Electric Vehicles B-in-the-loop simulation of urban electric vehicles. The proposed platform, which is expected to be used for electric is coupled to DC machine-based load torque emulator taking into account the electric vehicle mechanics

  15. On the Energy-Efficiency of Speculative Hardware Nana B. Sam

    E-Print Network [OSTI]

    Burtscher, Martin

    On the Energy-Efficiency of Speculative Hardware Nana B. Sam Computer Systems Laboratory Cornell, several researchers have pro- posed and evaluated energy-efficient variants of speculation mechanisms to accurately com- pare the energy-efficiency of speculative architectures. Our met- ric is based on runtime

  16. The Sharing Tracker: Using Ideas from Cache Coherence Hardware to Reduce Off-Chip Memory

    E-Print Network [OSTI]

    Skadron, Kevin

    (GPUs) have recently emerged as a new platform for high performance, general- purpose computing. Because) are optimized for high throughput on workloads with abundant parallelism. They were once fixed-function hardware architectures to become more general- purpose, manycore architectures (that just happen to be em- bedded within

  17. FY 2015 Computer Hardware and Software Request Form Last Revision 8/12-2013 -JPW

    E-Print Network [OSTI]

    Portman, Douglas

    FY 2015 Computer Hardware and Software Request Form Last Revision 8/12-2013 - JPW End User 5-28217-2610 Cost Estimate Date Group 5-28217-2290 Cost Estimate RT# 5-28217-2120 Cost Estimate CIDS# Non CSG Budget in those sections. >>> No purchases will be made until you contact CSG after the new budgets are approved

  18. Implementing the Render Cache and the Edge-and-Point Image On Graphics Hardware

    E-Print Network [OSTI]

    Keinan, Alon

    Implementing the Render Cache and the Edge-and-Point Image On Graphics Hardware Edgar Vel University Bruce Walter Program of Computer Graphics Cornell University Kavita Bala Department of Computer these techniques by utilizing programmable graphics process- ing units (GPUs) to achieve better framerates while

  19. Some Optimizations of Hardware Multiplication by Constant Matrices Nicolas Boullis, Arnaud Tisserand

    E-Print Network [OSTI]

    California at Davis, University of

    are achieved. 1 Introduction Important optimizations of the speed, area and power consumption of circuits can of this operation frequency. The problem of the optimization of multiplication by constant has been studiedSome Optimizations of Hardware Multiplication by Constant Matrices Nicolas Boullis, Arnaud

  20. Engineering Test Facilities Having the facilities to develop and test spaceflight hardware

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Engineering Test Facilities Having the facilities to develop and test spaceflight hardware onsite is a key ingredient to LASP's success. Our extensive test and calibration facilities enable our in-house engineers to work closely with scientists and mission operations staff in "test-like-you-fly" scenarios. Our

  1. Genetic Programming Approach for Fault Modeling of Electronic Hardware Ajith Abraham

    E-Print Network [OSTI]

    Fernandez, Thomas

    performance monitoring of electronic circuits and systems. Reliability modeling of electronic circuits can discussed in Section 2. This technique can be extended to simple electronic components and for complicatedGenetic Programming Approach for Fault Modeling of Electronic Hardware Ajith Abraham School

  2. Exploring Hybrid Memory for GPU Energy Efficiency through Software-Hardware Co-Design

    E-Print Network [OSTI]

    Shen, Xipeng

    Exploring Hybrid Memory for GPU Energy Efficiency through Software-Hardware Co-Design Bin Wang Bo, previous designs of PCM-based hybrid memory result in significant degradation to the energy efficiency in hybrid memory to avoid performance loss and improve energy efficiency. Previous work concentrates on CPU

  3. New Concepts in Hardware and Processes to Conserve Oil and Gas in Industrial Processes

    E-Print Network [OSTI]

    Humphrey, J. L.

    1982-01-01T23:59:59.000Z

    A broad program to identify and evaluate new types of hardware and processes to conserve oil and gas in chemical plants and petroleum refineries has been completed. During the course of this program, which was sponsored by the Office of Industrial...

  4. ESIF Plugs Utility-Scale Hardware into Simulated Grids to Assess Integration Effects (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01T23:59:59.000Z

    At NREL's Energy Systems Integration Facility (ESIF), integrated, megawatt-scale power hardware-in-the-loop (PHIL) capability allows researchers and manufacturers to test new energy technologies at full power in real-time simulations - safely evaluating component and system performance and reliability before going to market.

  5. String Matching in Hardware using the FM-Index Edward Fernandez, Walid Najjar and Stefano Lonardi

    E-Print Network [OSTI]

    Najjar, Walid A.

    -index is significantly higher than the naďve (brute force) approach. Like the Bowtie software tool, the FM-index can abandon early the hardware matching. It outperforms Bowtie by two orders of magnitude . I. INTRODUCTION-index has been used only in the bioinformatics domain. Software tools such as Bowtie [12], BWA [13

  6. Abstract--OpenSPARC is an open source community based around hardware design and experimentation aids

    E-Print Network [OSTI]

    Torrellas, Josep

    ]. Techniques used to improve single thread performance often give rise to complex processor designs with poorAbstract--OpenSPARC is an open source community based around hardware design and experimentation designed to improve the execution performance of single thread programs by exploiting instruction level

  7. Title of Thesis: HARDWARE SUPPORT FOR REAL-TIME OPERATING SYSTEMS

    E-Print Network [OSTI]

    Jacob, Bruce

    : Paul Kohout Degree and year: Master of Science, 2002 Thesis directed by: Professor Bruce L. Jacob bottlenecks. #12;HARDWARE SUPPORT FOR REAL-TIME OPERATING SYSTEMS by Paul James Kohout Thesis submitted Professor Gang Qu Professor David B. Stewart #12;©Copyright by Paul James Kohout 2002 #12;ii

  8. Job Management System Extension To Support SLAAC-1V Reconfigurable Hardware Mohamed Taher1

    E-Print Network [OSTI]

    Gaj, Krzysztof

    Job Management System Extension To Support SLAAC-1V Reconfigurable Hardware Mohamed Taher1 , Kris of a lot of applications, but these resources are very expensive. Job management systems (JMS) are used in resource management and job scheduling. They allow users to execute jobs on a non-dedicated cluster

  9. Exploration of Short Reads Genome Mapping in Hardware Edward Fernandez, Walid Najjar

    E-Print Network [OSTI]

    Lonardi, Stefano

    Exploration of Short Reads Genome Mapping in Hardware Edward Fernandez, Walid Najjar Department, such as Illumina/Solexa Genome Analyzer and ABI SOLiD, can generate hundreds of millions of short DNA "reads" from a single run. These reads must be matched against a reference genome to identify their original location

  10. Efficient Hardware Data Mining with the Apriori Algorithm on FPGAs1

    E-Print Network [OSTI]

    Hwang, Kai

    Efficient Hardware Data Mining with the Apriori Algorithm on FPGAs1 Zachary K. Baker and Viktor K@ganges.usc.edu Abstract The Apriori algorithm is a popular correlation-based data- mining kernel. However-based data mining is the field of algorithms to process this data into more useful forms, in particular

  11. Hardware Architecture for Measurements for 50-V Battery Modules

    SciTech Connect (OSTI)

    Patrick Bald; Evan Juras; Jon P. Christophersen; William Morrison

    2012-06-01T23:59:59.000Z

    Energy storage devices, especially batteries, have become critical for several industries including automotive, electric utilities, military and consumer electronics. With the increasing demand for electric and hybrid electric vehicles and the explosion in popularity of mobile and portable electronic devices such as laptops, cell phones, e-readers, tablet computers and the like, reliance on portable energy storage devices such as batteries has likewise increased. Because many of the systems these batteries integrated into are critical, there is an increased need for an accurate in-situ method of monitoring battery state-of-health. Over the past decade the Idaho National Laboratory (INL), Montana Tech of the University of Montana (Tech), and Qualtech Systems, Inc. (QSI) have been developing the Smart Battery Status Monitor (SBSM), an integrated battery management system designed to monitor battery health, performance and degradation and use this knowledge for effective battery management and increased battery life. Key to the success of the SBSM is an in-situ impedance measurement system called the Impedance Measurement Box (IMB). One of the challenges encountered has been development of a compact IMB system that will perform rapid accurate measurements of a battery impedance spectrum working with higher voltage batteries of up to 300 volts. This paper discusses the successful realization of a system that will work up to 50 volts.

  12. Authenticated Storage Using Small Trusted Hardware Hsin-Jung Yang, Victor Costan, Nickolai Zeldovich, and Srinivas Devadas

    E-Print Network [OSTI]

    Sabatini, David M.

    Authenticated Storage Using Small Trusted Hardware Hsin-Jung Yang, Victor Costan, Nickolai}@mit.edu ABSTRACT A major security concern with outsourcing data storage to third- party providers is authenticating hardware (e.g., a monotonic counter) at the storage server achieve low throughput. This pa- per proposes

  13. Making the Most of Thin Data: A Hardware-Software Approach

    E-Print Network [OSTI]

    Martin, Paul Daniel

    2013-01-01T23:59:59.000Z

    ing for structural health monitoring sensor networks. ” Inthe application of Structural Health Monitoring (SHM). By

  14. area networking infrastructure: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in scientific terms, our problem can systems problem including interconnected SCADAembedded networks, corporate intranets, and Internet Neves, Nuno 374 Adapting cities...

  15. Detecting and Blocking Network Attacks at Ultra High Speeds

    SciTech Connect (OSTI)

    Paxson, Vern

    2010-11-29T23:59:59.000Z

    Stateful, in-depth, in-line traffic analysis for intrusion detection and prevention has grown increasingly more difficult as the data rates of modern networks rise. One point in the design space for high-performance network analysis - pursued by a number of commercial products - is the use of sophisticated custom hardware. For very high-speed processing, such systems often cast the entire analysis process in ASICs. This project pursued a different architectural approach, which we term Shunting. Shunting marries a conceptually quite simple hardware device with an Intrusion Prevention System (IPS) running on commodity PC hardware. The overall design goal is was to keep the hardware both cheap and readily scalable to future higher speeds, yet also retain the unparalleled flexibility that running the main IPS analysis in a full general-computing environment provides. The Shunting architecture we developed uses a simple in-line hardware element that maintains several large state tables indexed by packet header fields, including IP/TCP flags, source and destination IP addresses, and connection tuples. The tables yield decision values the element makes on a packet-by-packet basis: forward the packet, drop it, or divert ('shunt') it through the IPS (the default). By manipulating table entries, the IPS can, on a fine-grained basis: (i) specify the traffic it wishes to examine, (ii) directly block malicious traffic, and (iii) 'cut through' traffic streams once it has had an opportunity to 'vet' them, or (iv) skip over large items within a stream before proceeding to further analyze it. For the Shunting architecture to yield benefits, it needs to operate in an environment for which the monitored network traffic has the property that - after proper vetting - much of it can be safely skipped. This property does not universally hold. For example, if a bank needs to examine all Web traffic involving its servers for regulatory compliance, then a monitor in front of one of the bank's server farms cannot safely omit a subset of the traffic from analysis. In this environment, Shunting cannot realize its main performance benefits, and the monitoring task likely calls for using custom hardware instead. However, in many other environments we find Shunting holds promise for delivering major performance gains. This arises due to the the widely documented 'heavy tail' nature of most forms of network traffic, which we might express as 'a few of the connections carry just about all the bytes.' The key additional insight is '... and very often for these few large connections, the very beginning of the connection contains nearly all the information of interest from a security analysis perspective.' We argue that this second claim holds because it is at the beginning of connections that authentication exchanges occur, data or file names and types are specified, request and reply status codes conveyed, and encryption is negotiated. Once these occur, we have seen most of the interesting facets of the dialog. Certainly the remainder of the connection might also yield some grist for analysis, but this is generally less likely, and thus if we want to lower analysis load at as small a loss as possible of information relevant to security analysis, we might best do so by skipping the bulk of large connections. In a different context, the 'Time Machine' work by Kornexl and colleagues likewise shows that in some environments we can realize major reductions in the volume of network traffic processed, by limiting the processing to the first 10-20 KB of each connection. As a concrete example, consider an IPS that monitors SSH traffic. When a new SSH connection arrives and the Shunt fails to find an entry for it in any of its tables (per-address, per-port, per-connection), it executes the default action of diverting the connection through the IPS. The IPS analyzes the beginning of the connection in this fashion. As long as it is satisified with the dialog, it reinjects the packets forwarded to it so that the connection can continue. If the connection successfully

  16. Parallel processing data network of master and slave transputers controlled by a serial control network

    DOE Patents [OSTI]

    Crosetto, Dario B. (DeSoto, TX)

    1996-01-01T23:59:59.000Z

    The present device provides for a dynamically configurable communication network having a multi-processor parallel processing system having a serial communication network and a high speed parallel communication network. The serial communication network is used to disseminate commands from a master processor (100) to a plurality of slave processors (200) to effect communication protocol, to control transmission of high density data among nodes and to monitor each slave processor's status. The high speed parallel processing network is used to effect the transmission of high density data among nodes in the parallel processing system. Each node comprises a transputer (104), a digital signal processor (114), a parallel transfer controller (106), and two three-port memory devices. A communication switch (108) within each node (100) connects it to a fast parallel hardware channel (70) through which all high density data arrives or leaves the node.

  17. Feasibility of using neural networks as a level 2 calorimeter trigger for jet tagging

    SciTech Connect (OSTI)

    Handler, T.; Neis, E. [Tennessee Univ., Knoxville, TN (United States). Dept. of Physics; Glover, C.; Gabriel, T.; Saini, S. [Oak Ridge National Lab., TN (United States)

    1992-12-31T23:59:59.000Z

    Several of expected decay modes of the Higgs particle will result in jet formation. We propose to incorporate a second level trigger into the SDC detector, using neural network VSLI hardware, to tag such Higgs decay modes. The input to the neural network will be the energy depositions in both the barrel and endcap regions of the calorimeter. The neural network`s output would be a value representing the degree of correlation between the observed energy distribution and the type of physical scattering that has occurred. Preliminary results indicate that neural networks may be of use in tagging jet decays of the Higgs particle.

  18. MHK technologies include current energy conversion

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    research leverages decades of experience in engineering and design and analysis (D&A) of wind power technologies, and its vast research complex, including high-performance...

  19. Insecurity of Wireless Networks

    SciTech Connect (OSTI)

    Sheldon, Frederick T [ORNL; Weber, John Mark [Dynetics, Inc.; Yoo, Seong-Moo [University of Alabama, Huntsville; Pan, W. David [University of Alabama, Huntsville

    2012-01-01T23:59:59.000Z

    Wireless is a powerful core technology enabling our global digital infrastructure. Wi-Fi networks are susceptible to attacks on Wired Equivalency Privacy, Wi-Fi Protected Access (WPA), and WPA2. These attack signatures can be profiled into a system that defends against such attacks on the basis of their inherent characteristics. Wi-Fi is the standard protocol for wireless networks used extensively in US critical infrastructures. Since the Wired Equivalency Privacy (WEP) security protocol was broken, the Wi-Fi Protected Access (WPA) protocol has been considered the secure alternative compatible with hardware developed for WEP. However, in November 2008, researchers developed an attack on WPA, allowing forgery of Address Resolution Protocol (ARP) packets. Subsequent enhancements have enabled ARP poisoning, cryptosystem denial of service, and man-in-the-middle attacks. Open source systems and methods (OSSM) have long been used to secure networks against such attacks. This article reviews OSSMs and the results of experimental attacks on WPA. These experiments re-created current attacks in a laboratory setting, recording both wired and wireless traffic. The article discusses methods of intrusion detection and prevention in the context of cyber physical protection of critical Internet infrastructure. The basis for this research is a specialized (and undoubtedly incomplete) taxonomy of Wi-Fi attacks and their adaptations to existing countermeasures and protocol revisions. Ultimately, this article aims to provide a clearer picture of how and why wireless protection protocols and encryption must achieve a more scientific basis for detecting and preventing such attacks.

  20. Benchmarking Non-Hardware Balance-of-System (Soft) Costs for U.S. Photovoltaic Systems Using a Bottom-Up Approach and Installer Survey

    E-Print Network [OSTI]

    Ardani, Kristen

    2014-01-01T23:59:59.000Z

    Non-Hardware Balance-of-System (Soft) Costs for U.S.Non-Hardware Balance-of-System (Soft) Costs for U.S.equivalent to 45% of total system soft costs ($3.32/W) and

  1. Software strategies and hardware upgrades to the PPL data acquisition system (DAS)

    SciTech Connect (OSTI)

    Davis, W.M.; Roney, P.; Gibney, T.; Funk, P.; Keller, M.; Sauthoff, N.; Davis, S.; Bates, G.; Corneliussen, M.; Fishman, H.

    1987-08-01T23:59:59.000Z

    This paper describes upgrades to the Data Acquisition System for the Experimental Projects Department at PPL, especially in support of the PBX-M upgrade to be completed this year. Hardware and software maintenance problems with the old configuration, consisting of a DEC KL-10 and eight PDP-11's, are described. The real-time software and hardware performance requirements and projections for CAMAC I/O and data analysis and display are presented. Described are three applications that have realtime requirements and are located on separate processors, connected to PPPL's VAX Cluster by an Ethernet link. Building upon a previous large software base, general-purpose subroutine libraries and utilities are being emphasized. The most useful of these are described. The use of software packages from DEC, third-party vendors, and the fusion community, is also described. The new approaches to software development that are being incorporated into the DAS efforts are discussed. Specific future challenges are also described.

  2. Random Number Hardware Generator Using Geiger-Mode Avalanche Photo Detector

    E-Print Network [OSTI]

    Beznosko, D; Duspayev, A; Tailakov, A; Yessenov, M

    2015-01-01T23:59:59.000Z

    This paper presents the physical concept and test results of sample data of the high-speed hardware true random number generator design based on typically used for High Energy Physics hardware. Main features of this concept are the high speed of the true random numbers generation (tens of Mbt/s), miniature size and estimated lower production cost. This allows the use of such a device not only in large companies and government offices but for the end-user data cryptography, in classrooms, in scientific Monte-Carlo simulations, computer games and any other place where large number of true random numbers is required. The physics of the operations principle of using a Geiger-mode avalanche photo detector is discussed and the high quality of the data collected is demonstrated.

  3. Clearing, Sanitizing, and Destroying Information System Storage Media, Memory Devices, and Other Related Hardware

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-02-19T23:59:59.000Z

    This Notice establishes Department of Energy policy requirements and responsibilities for clearing, sanitizing, and destroying DOE information system storage media, memory devices, and other related hardware to ensure no unauthorized information can be retrieved and provides instructions for the same. DOE N 205.15, dated 3-18-05, extends this directive until 3-18-06. No cancellations. Canceled by DOE M 205.1-2.

  4. A Principled Kernel Testbed for Hardware/Software Co-Design Research

    E-Print Network [OSTI]

    Kaiser, Alex

    2010-01-01T23:59:59.000Z

    Int’l. Journal of High Performance Computing Applications 5,In Proc. SC2009: High performance computing, networking, andIn Proc. SC2009: High performance computing, networking, and

  5. Accelerator and Community for Hardware Startups Are you are a student who is looking for new challenges? Do you have an idea for a physical product

    E-Print Network [OSTI]

    München Accelerator and Community for Hardware Startups Are you are a student who is looking for new challenges? Do you have an idea for a physical product or do you need help with your prototype? Do you already have a hardware startup that builds physical products but faces big challenges? Hardware

  6. Optimization in Networks

    E-Print Network [OSTI]

    Adilson E. Motter; Zoltan Toroczkai

    2007-07-07T23:59:59.000Z

    The recent surge in the network modeling of complex systems has set the stage for a new era in the study of fundamental and applied aspects of optimization in collective behavior. This Focus Issue presents an extended view of the state of the art in this field and includes articles from a large variety of domains where optimization manifests itself, including physical, biological, social, and technological networked systems.

  7. Power Management in Wireless Networks Kevin Klues

    E-Print Network [OSTI]

    Jain, Raj

    Power Management in Wireless Networks Kevin Klues Abstract This paper presents a survey on the various power saving techniques used in wireless networking today. The work presented covers topics at each layer of a wireless networking protocol stack. The types of wireless networks considered include

  8. EE Regional Technology Roadmap Includes comparison

    E-Print Network [OSTI]

    EE Regional Technology Roadmap Includes comparison against 6th Power Plan (Update cyclically Data Clearinghouse BPA/RTF NEEA/Regional Programs Group Update Regional EE Technology Roadmap Lighting

  9. DIDACTICAL HOLOGRAPHIC EXHIBIT INCLUDING (HOLOGRAPHIC TELEVISION)

    E-Print Network [OSTI]

    de Aguiar, Marcus A. M.

    DIDACTICAL HOLOGRAPHIC EXHIBIT INCLUDING HoloTV (HOLOGRAPHIC TELEVISION) José J. Lunazzi , DanielCampinasSPBrasil Abstract: Our Institute of Physics exposes since 1980 didactical exhibitions of holography in Brazil where

  10. Sessions include: Beginning Farmer and Rancher

    E-Print Network [OSTI]

    Watson, Craig A.

    Sessions include: ­ Beginning Farmer and Rancher ­ New Markets and Regulations ­ Food Safety ­ Good Bug, Bad Bug ID ­ Horticulture ­ Hydroponics ­ Livestock and Pastured Poultry ­ Mushrooms ­ Organic ­ Live animal exhibits ­ Saturday evening social, and ­ Local foods Florida Small Farms and Alternative

  11. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2014-11-25T23:59:59.000Z

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material, such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  12. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2013-02-19T23:59:59.000Z

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  13. HPSS Yearly Network Traffic

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    growth in network traffic to storage over the years. Network Traffic Growth Network Distribution 2010 Network Distribution 2010 Network Distribution 2009 Network Distribution...

  14. Electricity Distribution Networks: Investment and Regulation, and Uncertain Demand

    E-Print Network [OSTI]

    Jamasb, Tooraj; Marantes, Cristiano

    2011-01-31T23:59:59.000Z

    " and describes a network investment assessment model developed as a tool to identify and assess the investment requirements of distribution networks. A broadening of the scope of network investments to include demand-related measures that can reduce the need...

  15. Hardware model of a shipboard zonal electrical distribution system (ZEDS) : alternating current/direct current (AC/DC)

    E-Print Network [OSTI]

    Tidd, Chad N. (Chad Norman)

    2010-01-01T23:59:59.000Z

    A hardware model of a shipboard electrical distribution system based on aspects of the DDG 51 Flight IIA, Arleigh Burke class, 60Hz Alternating Current (AC) and the future direct current (DC), zonal electrical distribution ...

  16. Reducing cold start hydrocarbon emissions from port fuel injected spark ignition engines with improved management of hardware & controls

    E-Print Network [OSTI]

    Lang, Kevin R., 1980-

    2006-01-01T23:59:59.000Z

    An experimental study was performed to investigate strategies for reducing cold start hydrocarbon (HC) emissions from port fuel injected (PFI) spark ignition (SI) engines with better use of existing hardware and control ...

  17. The effect of hardware configuration on the performance of residential air conditioning systems at high outdoor ambient temperatures

    E-Print Network [OSTI]

    Bain, Joel Alan

    1995-01-01T23:59:59.000Z

    A study was performed which investigated the effect of hardware configuration on air conditioning cooling system performance at high outdoor temperatures. The initial phase of the investigation involved the testing of ten residential air...

  18. Qualification of the IBM CSC factory in Singapore : resource estimation and allocation in software and hardware services

    E-Print Network [OSTI]

    Li, Chengguang, M. Eng. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    The CSC department of IBM Singapore has been established two years ago. It provides a variety of hardware and software services for its customers. Due to the complex mix of products and the different ways of completing the ...

  19. Electric Power Monthly, August 1990. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1990-11-29T23:59:59.000Z

    The Electric Power Monthly (EPM) presents monthly summaries of electric utility statistics at the national, Census division, and State level. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead. Data includes generation by energy source (coal, oil, gas, hydroelectric, and nuclear); generation by region; consumption of fossil fuels for power generation; sales of electric power, cost data; and unusual occurrences. A glossary is included.

  20. Electrochemical cell including ribbed electrode substrates

    SciTech Connect (OSTI)

    Breault, R.D.; Goller, G.J.; Roethlein, R.J.; Sprecher, G.C.

    1981-07-21T23:59:59.000Z

    An electrochemical cell including an electrolyte retaining matrix layer located between and in contact with cooperating anode and cathode electrodes is disclosed herein. Each of the electrodes is comprised of a ribbed (or grooved) substrate including a gas porous body as its main component and a catalyst layer located between the substrate and one side of the electrolyte retaining matrix layer. Each substrate body includes a ribbed section for receiving reactant gas and lengthwise side portions on opposite sides of the ribbed section. Each of the side portions includes a channel extending along its entire length from one surface thereof (e.g., its outer surface) to but stopping short of an opposite surface (e.g., its inner surface) so as to provide a web directly between the channel and the opposite surface. Each of the channels is filled with a gas impervious substance and each of the webs is impregnated with a gas impervious substance so as to provide a gas impervious seal along the entire length of each side portion of each substrate and between the opposite faces thereof (e.g., across the entire thickness thereof).

  1. Prices include compostable serviceware and linen tablecloths

    E-Print Network [OSTI]

    California at Davis, University of

    & BLACK BEAN ENCHILADAS Fresh corn tortillas stuffed with tender brown butter sautéed butternut squash, black beans and yellow on- ions, garnished with avocado and sour cream. $33 per person EDAMAME & CORN SQUASH & BLACK BEAN ENCHILADA FREE RANGE CHICK- EN SANDWICH PLATED ENTREES All plated entrees include

  2. Energy Consumption of Personal Computing Including Portable

    E-Print Network [OSTI]

    Namboodiri, Vinod

    Energy Consumption of Personal Computing Including Portable Communication Devices Pavel Somavat1 consumption, questions are being asked about the energy contribution of computing equipment. Al- though studies have documented the share of energy consumption by this type of equipment over the years, research

  3. Digital I&C systems in nuclear power plants. Risk-screening of environmental stressors and a comparison of hardware unavailability with an existing analog system

    SciTech Connect (OSTI)

    Hassan, M.; Vesely, W.E.

    1998-01-01T23:59:59.000Z

    In this report, we present a screening study to identify environmental stressors for digital instrumentation and control (I&C) systems in a nuclear power plant (NPP) which can be potentially risk-significant, and compare the hardware unavailability of such a system with that of its existing analog counterpart. The stressors evaluated are temperature, humidity, vibration, radiation, electro-magnetic interference (EMI), and smoke. The results of risk-screening for an example plant, subject to some bounding assumptions and based on relative changes in plant risk (core damage frequency impacts of the stressors), indicate that humidity, EMI from lightning, and smoke can be potentially risk-significant. Risk from other sources of EMI could not be evaluated for a lack of data. Risk from temperature appears to be insignificant as that from the assumed levels of vibrations. A comparison of the hardware unavailability of the existing analog Safety Injection Actuation System (SIAS) in the example plant with that of an assumed digital upgrade of the system indicates that system unavailability may be more sensitive to the level of redundancy in elements of the digital system than to the environmental and operational variations involved. The findings of this study can be used to focus activities relating to the regulatory basis for digital I&C upgrades in NPPs, including identification of dominant stressors, data-gathering, equipment qualification, and requirements to limit the effects of environmental stressors. 30 refs., 8 figs., 26 tabs.

  4. Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization 1 Artificial Neural Networks Properties Applications Classical Examples Biological Background 2 Single Layer

  5. Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization Artificial Neural Networks #12;Artificial Neural Networks Single Layer Networks Multi Layer Networks Generalization 1 Artificial Neural Networks Properties Applications Classical Examples Biological Background 2

  6. Subterranean barriers including at least one weld

    DOE Patents [OSTI]

    Nickelson, Reva A.; Sloan, Paul A.; Richardson, John G.; Walsh, Stephanie; Kostelnik, Kevin M.

    2007-01-09T23:59:59.000Z

    A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.

  7. Broadening Industry Governance to Include Nonproliferation

    SciTech Connect (OSTI)

    Hund, Gretchen; Seward, Amy M.

    2008-11-11T23:59:59.000Z

    As industry is the first line of defense in detecting and thwarting illicit trade networks, the engagement of the private sector is critical to any government effort to strengthen existing mechanisms to protect goods and services throughout the supply chain. This study builds on previous PNNL work to continue to evaluate means for greater industry engagement to complement and strengthen existing governmental efforts to detect and stem the trade of illicit goods and to protect and secure goods that could be used in making a weapon of mass destruction. Specifically, the study evaluates the concept of Industry Self Regulation, defined as a systematic voluntary program undertaken by an industry or by individual companies to anticipate, implement, supplement, or substitute for regulatory requirements in a given field, generally through the adoption of best practices. Through a series of interviews with companies with a past history of non-compliance, trade associations and NGOs, the authors identify gaps in the existing regulatory infrastructure, drivers for a self regulation approach and the form such an approach might take, as well as obstacles to be overcome. The authors conclude that it is at the intersection of industry, government, and security that—through collaborative means—the effectiveness of the international nonproliferation system—can be most effectively strengthened to the mutual benefit of both government and the private sector. Industry has a critical stake in the success of this regime, and has the potential to act as an integrating force that brings together the existing mechanisms of the global nonproliferation regime: export controls, physical protection, and safeguards. The authors conclude that industry compliance is not enough; rather, nonproliferation must become a central tenant of a company’s corporate culture and be viewed as an integral component of corporate social responsibility (CSR).

  8. Mobile Networks Unplugged Jukka Manner, Marko Luoma, Jrg Ott, Jyri Hmlinen

    E-Print Network [OSTI]

    Ott, Jörg

    .lastname@tkk.fi ABSTRACT Mobile network access has seemingly become ubiquitous in industrialized countries. With data of hardware driven by more visual and complex software, and thus increased demand for storage. The average global load distribution (moving load to cold areas) and recycling for heating systems, more advanced

  9. Fast Broadcast in High Speed Networks Ajei Gopal Inder Gopal Shay Kutten

    E-Print Network [OSTI]

    Kutten, Shay

    , the history is stored in software. Thus, when a node receives a message m, it performs a software search to determine whether 1 #12; or not to forward m. With increasing network speed, this search becomes the search described above directly in very high speed hardware; unfortunately, such a solution may

  10. Calibrating Wireless Sensor Network Simulation Models with Real-World Experiments

    E-Print Network [OSTI]

    Braun, Torsten

    ,braun}@iam.unibe.ch Abstract. This paper studies the energy-efficiency and service charac- teristics of a recently developed energy-efficient MAC protocol for wire- less sensor networks in simulation and on a real sensor hardware level of detail. In this paper we analyze the energy-efficiency and service characteristics

  11. Demo: Organic Solar Cell-equipped Energy Harvesting Active Networked Tag (EnHANT) Prototypes

    E-Print Network [OSTI]

    Carloni, Luca

    Demo: Organic Solar Cell-equipped Energy Harvesting Active Networked Tag (EnHANT) Prototypes Gerald harvesting and communications hardware, namely organic solar cells and ultra-wide-band impulse radio (UWB harvesting, organic solar cells, ultra-low-power com- munications, ultra-wideband impulse radio, energy

  12. Power generation method including membrane separation

    DOE Patents [OSTI]

    Lokhandwala, Kaaeid A. (Union City, CA)

    2000-01-01T23:59:59.000Z

    A method for generating electric power, such as at, or close to, natural gas fields. The method includes conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas by means of a membrane separation step. This step creates a leaner, sweeter, drier gas, which is then used as combustion fuel to run a turbine, which is in turn used for power generation.

  13. Rotor assembly including superconducting magnetic coil

    DOE Patents [OSTI]

    Snitchler, Gregory L. (Shrewsbury, MA); Gamble, Bruce B. (Wellesley, MA); Voccio, John P. (Somerville, MA)

    2003-01-01T23:59:59.000Z

    Superconducting coils and methods of manufacture include a superconductor tape wound concentrically about and disposed along an axis of the coil to define an opening having a dimension which gradually decreases, in the direction along the axis, from a first end to a second end of the coil. Each turn of the superconductor tape has a broad surface maintained substantially parallel to the axis of the coil.

  14. Electric power monthly, September 1990. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1990-12-17T23:59:59.000Z

    The purpose of this report is to provide energy decision makers with accurate and timely information that may be used in forming various perspectives on electric issues. The power plants considered include coal, petroleum, natural gas, hydroelectric, and nuclear power plants. Data are presented for power generation, fuel consumption, fuel receipts and cost, sales of electricity, and unusual occurrences at power plants. Data are compared at the national, Census division, and state levels. 4 figs., 52 tabs. (CK)

  15. On the robustness of clustered sensor networks 

    E-Print Network [OSTI]

    Cho, Jung Jin

    2009-05-15T23:59:59.000Z

    Smart devices with multiple on-board sensors, networked through wired or wireless links, are distributed in physical systems and environments. Broad applications of such sensor networks include manufacturing quality control and wireless sensor...

  16. Feasibility of using neural networks as a level 2 calorimeter trigger for jet tagging

    SciTech Connect (OSTI)

    Handler, T.; Neis, E. (Tennessee Univ., Knoxville, TN (United States). Dept. of Physics); Glover, C.; Gabriel, T.; Saini, S. (Oak Ridge National Lab., TN (United States))

    1992-01-01T23:59:59.000Z

    Several of expected decay modes of the Higgs particle will result in jet formation. We propose to incorporate a second level trigger into the SDC detector, using neural network VSLI hardware, to tag such Higgs decay modes. The input to the neural network will be the energy depositions in both the barrel and endcap regions of the calorimeter. The neural network's output would be a value representing the degree of correlation between the observed energy distribution and the type of physical scattering that has occurred. Preliminary results indicate that neural networks may be of use in tagging jet decays of the Higgs particle.

  17. Two Methods for a First Order Hardware Gradiometer Using Two HTS SQUID's

    SciTech Connect (OSTI)

    Espy, M.A.; Flynn, E.R.; Kraus, R.H., Jr.; Matlachov, A.

    1998-09-15T23:59:59.000Z

    Two different systems for noise cancellation (first order gradiometers) have been developed using two similar high temperature superconducting (HTS) SQUIDs. ''Analog'' gradiometry is accomplished in hardware by either (1) subtracting the signals from the sensor and background SQUIDs at a summing amplifier (parallel technique) or (2) converting the inverted background SQUID signal to a magnetic field at the sensor SQUID (series technique). Balance levels achieved are 2000 and 1000 at 20 Hz for the parallel and series methods respectively. The balance level as a function of frequency is also presented. The effect which time delays in the two sets of SQUID electronics have on this balance level is presented and discussed.

  18. Two methods for a first order hardware gradiometer using two HTS SQUIDs

    SciTech Connect (OSTI)

    Espy, M.A.; Flynn, E.R.; Kraus, R.H. Jr.; Matlachov, A.

    1998-12-31T23:59:59.000Z

    Two different systems for noise cancellation (first order gradiometers) have been developed using two similar high temperature superconducting (HTS) SQUIDs. Analog gradiometry is accomplished in hardware by either (1) subtracting the signals from the sensor and background SQUIDs at a summing amplifier (parallel technique) or (2) converting the inverted background SQUID signal to a magnetic field at the sensor SQUID (series technique). Balance levels achieved are 2000 and 1000 at 20 Hz for the parallel and series methods respectively. The balance level as a function of frequency is also presented. The effect which time delays in the two sets of SQUID electronics have on this balance level is presented and discussed.

  19. Solar Projects to Reduce Non-Hardware Balance of System Costs | Department

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouof Energy Projects to Reduce Non-Hardware

  20. Multiverse rate equation including bubble collisions

    E-Print Network [OSTI]

    Michael P. Salem

    2013-02-19T23:59:59.000Z

    The volume fractions of vacua in an eternally inflating multiverse are described by a coarse-grain rate equation, which accounts for volume expansion and vacuum transitions via bubble formation. We generalize the rate equation to account for bubble collisions, including the possibility of classical transitions. Classical transitions can modify the details of the hierarchical structure among the volume fractions, with potential implications for the staggering and Boltzmann-brain issues. Whether or not our vacuum is likely to have been established by a classical transition depends on the detailed relationships among transition rates in the landscape.

  1. BER Science Network Requirements Workshop -- July 26-27,2007

    SciTech Connect (OSTI)

    Tierney, Brian L.; Dart, Eli

    2008-02-01T23:59:59.000Z

    The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the US Department of Energy Office of Science, the single largest supporter of basic research in the physical sciences in the United States of America. In support of the Office of Science programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In July 2007, ESnet and the Biological and Environmental Research (BER) Program Office of the DOE Office of Science organized a workshop to characterize the networking requirements of the science programs funded by the BER Program Office. These included several large programs and facilities, including Atmospheric Radiation Measurement (ARM) Program and the ARM Climate Research Facility (ACRF), Bioinformatics and Life Sciences Programs, Climate Sciences Programs, the Environmental Molecular Sciences Laboratory at PNNL, the Joint Genome Institute (JGI). National Center for Atmospheric Research (NCAR) also participated in the workshop and contributed a section to this report due to the fact that a large distributed data repository for climate data will be established at NERSC, ORNL and NCAR, and this will have an effect on ESnet. Workshop participants were asked to codify their requirements in a 'case study' format, which summarizes the instruments and facilities necessary for the science and the process by which the science is done, with emphasis on the network services needed and the way in which the network is used. Participants were asked to consider three time scales in their case studies--the near term (immediately and up to 12 months in the future), the medium term (3-5 years in the future), and the long term (greater than 5 years in the future). In addition to achieving its goal of collecting and characterizing the network requirements of the science endeavors funded by the BER Program Office, the workshop emphasized some additional points. These included the need for a future ESnet presence in the Denver area, a desire for ESnet to continue support of collaboration services, and the need for ESnet to support dedicated bandwidth or 'virtual circuit' services. In addition, it is clear that the BER facilities are going to experience significant growth in data production over the next 5 years. The reasons for this vary (model resolution and supercomputer allocations for climate, detector upgrades for EMSL and ARM, sequencing hardware upgrades for JGI), but all indicators point to significant growth in data volumes over the near to medium term. This growth in data volume, combined with the ever-expanding scope of scientific collaboration, will continue to demand ever-increasing bandwidth, reliability and service richness from the networks that support DOE science.

  2. A Network Contention Model for the Extreme-scale Simulator

    SciTech Connect (OSTI)

    Engelmann, Christian [ORNL; Naughton, III, Thomas J [ORNL

    2015-01-01T23:59:59.000Z

    The Extreme-scale Simulator (xSim) is a performance investigation toolkit for high-performance computing (HPC) hardware/software co-design. It permits running a HPC application with millions of concurrent execution threads, while observing its performance in a simulated extreme-scale system. This paper details a newly developed network modeling feature for xSim, eliminating the shortcomings of the existing network modeling capabilities. The approach takes a different path for implementing network contention and bandwidth capacity modeling using a less synchronous and accurate enough model design. With the new network modeling feature, xSim is able to simulate on-chip and on-node networks with reasonable accuracy and overheads.

  3. Helper's Network Gazette November 1994

    E-Print Network [OSTI]

    1994-01-01T23:59:59.000Z

    all current members are included, the prize being a beautiful etched glass mug with a Beth Blighton head of Vincent on one side and the B&B logo on the other. If you're in doubt when you're due to renew, look at your certificate to see when you joined... including all Helpers' Network has to offer: The Helpers' Network Gazette (a monthly newsletter); The Helpers' Network Quality Fanzine Review ("Q-fer"); audio and video tapes; and T-shirts and totebags with the Helpers' Network logo. Those who join or renew...

  4. Optical panel system including stackable waveguides

    DOE Patents [OSTI]

    DeSanto, Leonard (Dunkirk, MD); Veligdan, James T. (Manorville, NY)

    2007-11-20T23:59:59.000Z

    An optical panel system including stackable waveguides is provided. The optical panel system displays a projected light image and comprises a plurality of planar optical waveguides in a stacked state. The optical panel system further comprises a support system that aligns and supports the waveguides in the stacked state. In one embodiment, the support system comprises at least one rod, wherein each waveguide contains at least one hole, and wherein each rod is positioned through a corresponding hole in each waveguide. In another embodiment, the support system comprises at least two opposing edge structures having the waveguides positioned therebetween, wherein each opposing edge structure contains a mating surface, wherein opposite edges of each waveguide contain mating surfaces which are complementary to the mating surfaces of the opposing edge structures, and wherein each mating surface of the opposing edge structures engages a corresponding complementary mating surface of the opposite edges of each waveguide.

  5. Optical panel system including stackable waveguides

    DOE Patents [OSTI]

    DeSanto, Leonard; Veligdan, James T.

    2007-03-06T23:59:59.000Z

    An optical panel system including stackable waveguides is provided. The optical panel system displays a projected light image and comprises a plurality of planar optical waveguides in a stacked state. The optical panel system further comprises a support system that aligns and supports the waveguides in the stacked state. In one embodiment, the support system comprises at least one rod, wherein each waveguide contains at least one hole, and wherein each rod is positioned through a corresponding hole in each waveguide. In another embodiment, the support system comprises at least two opposing edge structures having the waveguides positioned therebetween, wherein each opposing edge structure contains a mating surface, wherein opposite edges of each waveguide contain mating surfaces which are complementary to the mating surfaces of the opposing edge structures, and wherein each mating surface of the opposing edge structures engages a corresponding complementary mating surface of the opposite edges of each waveguide.

  6. Thermovoltaic semiconductor device including a plasma filter

    DOE Patents [OSTI]

    Baldasaro, Paul F. (Clifton Park, NY)

    1999-01-01T23:59:59.000Z

    A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filter which reflects back energy having a wavelength which is above the band gap and which is ineffectively filtered by the interference filter, through the P/N junction to the source of radiation thereby avoiding parasitic absorption of the unusable portion of the thermal radiation energy.

  7. QoS-oriented Integrated Network Planning for Industrial Wireless Sensor Networks

    E-Print Network [OSTI]

    Breu, Ruth

    , Industry Automation Division, Germany {feng.chen,german,dressler}@informatik.uni-erlangen.de Abstract including industrial automation. This also includes Wireless Sensor Network (WSN) technology [1] basedQoS-oriented Integrated Network Planning for Industrial Wireless Sensor Networks Feng Chen

  8. Low-Cost, Robust, Threat-Aware Wireless Sensor Network for Assuring the Nation's Energy Infrastructure

    SciTech Connect (OSTI)

    Carols H. Rentel

    2007-03-31T23:59:59.000Z

    Eaton, in partnership with Oak Ridge National Laboratory and the Electric Power Research Institute (EPRI) has completed a project that applies a combination of wireless sensor network (WSN) technology, anticipatory theory, and a near-term value proposition based on diagnostics and process uptime to ensure the security and reliability of critical electrical power infrastructure. Representatives of several Eaton business units have been engaged to ensure a viable commercialization plan. Tennessee Valley Authority (TVA), American Electric Power (AEP), PEPCO, and Commonwealth Edison were recruited as partners to confirm and refine the requirements definition from the perspective of the utilities that actually operate the facilities to be protected. Those utilities have cooperated with on-site field tests as the project proceeds. Accomplishments of this project included: (1) the design, modeling, and simulation of the anticipatory wireless sensor network (A-WSN) that will be used to gather field information for the anticipatory application, (2) the design and implementation of hardware and software prototypes for laboratory and field experimentation, (3) stack and application integration, (4) develop installation and test plan, and (5) refinement of the commercialization plan.

  9. Benchmarking Non-Hardware Balance-of-System (Soft) Costs for U.S. Photovoltaic Systems, Using a Bottom-Up Approach and Installer Survey - Second Edition

    SciTech Connect (OSTI)

    Friedman, B.; Ardani, K.; Feldman, D.; Citron, R.; Margolis, R.; Zuboy, J.

    2013-10-01T23:59:59.000Z

    This report presents results from the second U.S. Department of Energy (DOE) sponsored, bottom-up data-collection and analysis of non-hardware balance-of-system costs -- often referred to as 'business process' or 'soft' costs -- for U.S. residential and commercial photovoltaic (PV) systems. In service to DOE's SunShot Initiative, annual expenditure and labor-hour-productivity data are analyzed to benchmark 2012 soft costs related to (1) customer acquisition and system design (2) permitting, inspection, and interconnection (PII). We also include an in-depth analysis of costs related to financing, overhead, and profit. Soft costs are both a major challenge and a major opportunity for reducing PV system prices and stimulating SunShot-level PV deployment in the United States. The data and analysis in this series of benchmarking reports are a step toward the more detailed understanding of PV soft costs required to track and accelerate these price reductions.

  10. The design and construction of electronic motor control and network interface hardware for advance concept urban mobility vehicles

    E-Print Network [OSTI]

    Morrissey, Bryan L. (Bryan Lawrence)

    2008-01-01T23:59:59.000Z

    Over the past several years, the Smart Cities Group at MIT's Media Lab has engaged in research to develop several advanced concepts for vehicles to improve urban mobility. This research has focused on developing a modular ...

  11. COMMUNICATIONS OF THE ACM November 2000/Vol. 43, No. 11 37 SAN with Fibre Channel network hardware that has

    E-Print Network [OSTI]

    - formance and maintaining backups) now dominate capital costs over the equip- ment's useful lifetime. Ven- dors estimate this recurring cost to be as much as $300 per gigabyte per year; that is, each year for online capacity fuels other business tech- nology trends. First, capital investment in storage is now

  12. Engine lubrication circuit including two pumps

    DOE Patents [OSTI]

    Lane, William H.

    2006-10-03T23:59:59.000Z

    A lubrication pump coupled to the engine is sized such that the it can supply the engine with a predetermined flow volume as soon as the engine reaches a peak torque engine speed. In engines that operate predominately at speeds above the peak torque engine speed, the lubrication pump is often producing lubrication fluid in excess of the predetermined flow volume that is bypassed back to a lubrication fluid source. This arguably results in wasted power. In order to more efficiently lubricate an engine, a lubrication circuit includes a lubrication pump and a variable delivery pump. The lubrication pump is operably coupled to the engine, and the variable delivery pump is in communication with a pump output controller that is operable to vary a lubrication fluid output from the variable delivery pump as a function of at least one of engine speed and lubrication flow volume or system pressure. Thus, the lubrication pump can be sized to produce the predetermined flow volume at a speed range at which the engine predominately operates while the variable delivery pump can supplement lubrication fluid delivery from the lubrication pump at engine speeds below the predominant engine speed range.

  13. Models of Procyon A including seismic constraints

    E-Print Network [OSTI]

    P. Eggenberger; F. Carrier; F. Bouchy

    2005-01-14T23:59:59.000Z

    Detailed models of Procyon A based on new asteroseismic measurements by Eggenberger et al (2004) have been computed using the Geneva evolution code including shellular rotation and atomic diffusion. By combining all non-asteroseismic observables now available for Procyon A with these seismological data, we find that the observed mean large spacing of 55.5 +- 0.5 uHz favours a mass of 1.497 M_sol for Procyon A. We also determine the following global parameters of Procyon A: an age of t=1.72 +- 0.30 Gyr, an initial helium mass fraction Y_i=0.290 +- 0.010, a nearly solar initial metallicity (Z/X)_i=0.0234 +- 0.0015 and a mixing-length parameter alpha=1.75 +- 0.40. Moreover, we show that the effects of rotation on the inner structure of the star may be revealed by asteroseismic observations if frequencies can be determined with a high precision. Existing seismological data of Procyon A are unfortunately not accurate enough to really test these differences in the input physics of our models.

  14. Primal-Dual Interior Point Method Applied to the Short Term Hydroelectric Scheduling Including a

    E-Print Network [OSTI]

    Oliveira, Aurélio R. L.

    that minimizes losses in the transmission and costs in the generation of a hydroelectric power system, formulated such perturbing parameter. Keywords-- Hydroelectric power system, Network flow, Predispatch, Primal-dual interiorPrimal-Dual Interior Point Method Applied to the Short Term Hydroelectric Scheduling Including

  15. Network Economics Anna Nagurney

    E-Print Network [OSTI]

    Nagurney, Anna

    Performance/Efficiency Measure with Applications to a Variety of Network Systems · Transportation Network with transportation as the unifying application. #12;Subway Network Railroad Network Iridium Satellite Constellation Network Satellite and Undersea Cable Networks Duke Energy Gas Pipeline Network Transportation

  16. Optical Network Testbeds Workshop

    SciTech Connect (OSTI)

    Joe Mambretti

    2007-06-01T23:59:59.000Z

    This is the summary report of the third annual Optical Networking Testbed Workshop (ONT3), which brought together leading members of the international advanced research community to address major challenges in creating next generation communication services and technologies. Networking research and development (R&D) communities throughout the world continue to discover new methods and technologies that are enabling breakthroughs in advanced communications. These discoveries are keystones for building the foundation of the future economy, which requires the sophisticated management of extremely large qualities of digital information through high performance communications. This innovation is made possible by basic research and experiments within laboratories and on specialized testbeds. Initial network research and development initiatives are driven by diverse motives, including attempts to solve existing complex problems, the desire to create powerful new technologies that do not exist using traditional methods, and the need to create tools to address specific challenges, including those mandated by large scale science or government agency mission agendas. Many new discoveries related to communications technologies transition to wide-spread deployment through standards organizations and commercialization. These transition paths allow for new communications capabilities that drive many sectors of the digital economy. In the last few years, networking R&D has increasingly focused on advancing multiple new capabilities enabled by next generation optical networking. Both US Federal networking R&D and other national R&D initiatives, such as those organized by the National Institute of Information and Communications Technology (NICT) of Japan are creating optical networking technologies that allow for new, powerful communication services. Among the most promising services are those based on new types of multi-service or hybrid networks, which use new optical networking technologies. Several years ago, when many of these optical networking research topics were first being investigated, they were the subject of controversial debate. The new techniques challenged many long-held concepts related to architecture and technology. However, today all major networking organizations are transitioning toward infrastructure that incorporates these new concepts. This progress has been assisted through the series of Optical Networking Testbed Workshops (ONT). The first (ONT1) outlined a general framework of key issues and topics and developed a series of recommendations (www.nren.nasa.gov/workshop7). The second (ONT2) developed a common vision of optical network technologies, services, infrastructure, and organizations (www.nren.nasa.gov/workshop8). Processes that allow for a common vision encourage widespread deployment of these types of resources among advanced networking communities. Also, such a shared vision enables key concepts and technologies to migrate from basic research testbeds to wider networking communities. The ONT-3 workshop built on these earlier activities by expanding discussion to include additional considerations of the international interoperability and of greater impact of optical networking technology on networking in general. In accordance with this recognition, the workshop confirmed that future-oriented research and development is indispensable to fundamentally change the current Internet architecture to create a global network incorporating completely new concepts. The workshop also recognized that the first priority to allow for this progress is basic research and development, including international collaborative activities, which are important for the global realization of interoperability of a new generation architecture.

  17. Network Growth and Consolidation: The Effects of Cohesion and Diversity on the Biotechnology Industry Network

    E-Print Network [OSTI]

    White, Douglas R.

    topologies ­ such as metabolic networks or the World Wide Web ­ in that they tend to be assortative (Newman Industry Network *** Includes Color Figures *** Word Count 7,087 inclusive Jason Owen-Smith Walter W

  18. Applying New Network Security Technologies to SCADA Systems.

    SciTech Connect (OSTI)

    Hurd, Steven A.; Stamp, Jason E. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM; Duggan, David P. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM; Chavez, Adrian R. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM

    2006-11-01T23:59:59.000Z

    Supervisory Control and Data Acquisition (SCADA) systems for automation are very important for critical infrastructure and manufacturing operations. They have been implemented to work in a number of physical environments using a variety of hardware, software, networking protocols, and communications technologies, often before security issues became of paramount concern. To offer solutions to security shortcomings in the short/medium term, this project was to identify technologies used to secure %22traditional%22 IT networks and systems, and then assess their efficacy with respect to SCADA systems. These proposed solutions must be relatively simple to implement, reliable, and acceptable to SCADA owners and operators. 4This page intentionally left blank.

  19. Software Reliability Cases: The Bridge Between Hardware, Software and System Safety and Reliability

    SciTech Connect (OSTI)

    Herrmann, D.S.; Peercy, D.E.

    1999-01-08T23:59:59.000Z

    High integrity/high consequence systems must be safe and reliable; hence it is only logical that both software safety and software reliability cases should be developed. Risk assessments in safety cases evaluate the severity of the consequences of a hazard and the likelihood of it occurring. The likelihood is directly related to system and software reliability predictions. Software reliability cases, as promoted by SAE JA 1002 and 1003, provide a practical approach to bridge the gap between hardware reliability, software reliability, and system safety and reliability by using a common methodology and information structure. They also facilitate early insight into whether or not a project is on track for meeting stated safety and reliability goals, while facilitating an informed assessment by regulatory and/or contractual authorities.

  20. The Texas Solution to the Nation's Disposal Needs for Irradiated Hardware - 13337

    SciTech Connect (OSTI)

    Britten, Jay M. [Waste Control Specialists LLC, Andrews, TX 79714 (United States)] [Waste Control Specialists LLC, Andrews, TX 79714 (United States)

    2013-07-01T23:59:59.000Z

    The closure of the disposal facility in Barnwell, South Carolina, to out-of-compact states in 2008 left commercial nuclear power plants without a disposal option for Class B and C irradiated hardware. In 2012, Waste Control Specialists LLC (WCS) opened a highly engineered facility specifically designed and built for the disposal of Class B and C waste. The WCS facility is the first Interstate Compact low-level radioactive waste disposal facility to be licensed and operated under the Low-level Waste Policy Act of 1980, as amended in 1985. Due to design requirements of a modern Low Level Radioactive Waste (LLRW) facility, traditional methods for disposal were not achievable at the WCS site. Earlier methods primarily utilized the As Low as Reasonably Achievable (ALARA) concept of distance to accomplish worker safety. The WCS method required the use of all three ALARA concepts of time, distance, and shielding to ensure the safe disposal of this highly hazardous waste stream. (authors)

  1. CO2017 Operating Systems, Networks and Distributed Systems Credits: 20 Convenor: Dr. S. Yang Semester: 2nd

    E-Print Network [OSTI]

    Yang, Shengxiang

    Study: 90 hours Subject Knowledge Aims To understand the role, structure and basic design of computer operating systems; the fundamental theory and practice of networks; and the theory and design of systems; hardware features; interrupts; kernal mode. User interface Model of user interface; sytem calls; command

  2. A hybrid electron and photon IMRT planning technique that lowers normal tissue integral patient dose using standard hardware

    SciTech Connect (OSTI)

    Rosca, Florin [Department of Radiation Oncology, Massachusetts General Hospital, Danvers, Massachusetts 01923 (United States)

    2012-06-15T23:59:59.000Z

    Purpose: To present a mixed electron and photon IMRT planning technique using electron beams with an energy range of 6-22 MeV and standard hardware that minimizes integral dose to patients for targets as deep as 7.5 cm. Methods: Ten brain cases, two lung, a thyroid, an abdominal, and a parotid case were planned using two planning techniques: a photon-only IMRT (IMRT) versus a mixed modality treatment (E + IMRT) that includes an enface electron beam and a photon IMRT portion that ensures a uniform target coverage. The electron beam is delivered using a regular cutout placed in an electron cone. The electron energy was chosen to provide a good trade-off between minimizing integral dose and generating a uniform, deliverable plan. The authors choose electron energies that cover the deepest part of PTV with the 65%-70% isodose line. The normal tissue integral dose, the dose for ring structures around the PTV, and the volumes of the 75%, 50%, and 25% isosurfaces were used to compare the dose distributions generated by the two planning techniques. Results: The normal tissue integral dose was lowered by about 20% by the E + IMRT plans compared to the photon-only IMRT ones for most studied cases. With the exception of lungs, the dose reduction associated to the E + IMRT plans was more pronounced further away from the target. The average dose ratio delivered to the 0-2 cm and the 2-4 cm ring structures for brain patients for the two planning techniques were 89.6% and 70.8%, respectively. The enhanced dose sparing away from the target for the brain patients can also be observed in the ratio of the 75%, 50%, and 25% isodose line volumes for the two techniques, which decreases from 85.5% to 72.6% and further to 65.1%, respectively. For lungs, the lateral electron beams used in the E + IMRT plans were perpendicular to the mostly anterior/posterior photon beams, generating much more conformal plans. Conclusions: The authors proved that even using the existing electron delivery hardware, a mixed electron/photon planning technique (E + IMRT) can decrease the normal tissue integral dose compared to a photon-only IMRT plan. Different planning approaches can be enabled by the use of an electron beam directed toward organs at risk distal to the target, which are still spared due the rapid dose fall-off of the electron beam. Examples of such cases are the lateral electron beams in the thoracic region that do not irradiate the heart and contralateral lung, electron beams pointed toward kidneys in the abdominal region, or beams treating brain lesions pointed toward the brainstem or optical apparatus. For brain, electron vertex beams can also be used without irradiating the whole body. Since radiation retreatments become more and more common, minimizing the normal tissue integral dose and the dose delivered to tissues surrounding the target, as enabled by E + IMRT type techniques, should receive more attention.

  3. Connecting to the Internet Securely; Protecting Home Networks CIAC-2324

    SciTech Connect (OSTI)

    Orvis, W J; Krystosek, P; Smith, J

    2002-11-27T23:59:59.000Z

    With more and more people working at home and connecting to company networks via the Internet, the risk to company networks to intrusion and theft of sensitive information is growing. Working from home has many positive advantages for both the home worker and the company they work for. However, as companies encourage people to work from home, they need to start considering the interaction of the employee's home network and the company network he connects to. This paper discusses problems and solutions related to protection of home computers from attacks on those computers via the network connection. It does not consider protection of those systems from people who have physical access to the computers nor does it consider company laptops taken on-the-road. Home networks are often targeted by intruders because they are plentiful and they are usually not well secured. While companies have departments of professionals to maintain and secure their networks, home networks are maintained by the employee who may be less knowledgeable about network security matters. The biggest problems with home networks are that: Home networks are not designed to be secure and may use technologies (wireless) that are not secure; The operating systems are not secured when they are installed; The operating systems and applications are not maintained (for security considerations) after they are installed; and The networks are often used for other activities that put them at risk for being compromised. Home networks that are going to be connected to company networks need to be cooperatively secured by the employee and the company so they do not open up the company network to intruders. Securing home networks involves many of the same operations as securing a company network: Patch and maintain systems; Securely configure systems; Eliminate unneeded services; Protect remote logins; Use good passwords; Use current antivirus software; and Moderate your Internet usage habits. Most of these items do not take a lot of work, but require an awareness of the risks involved in not doing them or doing them incorrectly. The security of home networks and communications with company networks can be significantly improved by adding an appropriate software or hardware firewall to the home network and using a protected protocol such as Secure Sockets Layer (SSL), a Virtual Private Network (VPN), or Secure Shell (SSH) for connecting to the company network.

  4. Efficient network camouflaging in wireless networks 

    E-Print Network [OSTI]

    Jiang, Shu

    2006-04-12T23:59:59.000Z

    when protected networks are wireless networks, such as sensor networks and mobile ad hoc networks. The reason is that wireless networks are typically subject to resource constraints (e.g. bandwidth, power supply) and possess some unique characteristics...

  5. In any gearbox, lubrication is just as important as the hardware. In wind turbine gearboxes, it is imperative that

    E-Print Network [OSTI]

    Chapman, Clark R.

    . Wind turbines are also subject to conditions that range from extremely low temperatures to contaminantsIn any gearbox, lubrication is just as important as the hardware. In wind turbine gearboxes, it is imperative that the lubricant not only protects gearbox components, but also maintains a significant design

  6. ccsd-00021443,version1-29Mar2006 Implementation of float-float operators on graphics hardware

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ccsd-00021443,version1-29Mar2006 Implementation of float-float operators on graphics hardware Perpignan Cedex, France March 29, 2006 Abstract The Graphic Processing Unit (GPU) has evolved into a powerful and flexible processor. The latest graphic processors provide fully programmable vertex and pixel

  7. A Hardware in the Loop module in an IEC61850 Co-Simulation Platform for advanced substation

    E-Print Network [OSTI]

    Boyer, Edmond

    A Hardware in the Loop module in an IEC61850 Co- Simulation Platform for advanced substation aspects, related to the IEC61850 requirements, should be tested and checked in order to validate architecture. The first aspect consists in validating the conformity of the IEC61850 implementation inside

  8. Abstract--Better software and hardware for automatic classification of power quality (PQ) disturbances are desired for

    E-Print Network [OSTI]

    Mamishev, Alexander

    on the quality of electric power supplied to the customer [2]. Today, power quality (PQ) has become a very (Consortium for Electric Infrastructure to Support a Digital Society) shows that the U.S. economy is losing1 Abstract--Better software and hardware for automatic classification of power quality (PQ

  9. Posting type Advisory Subject Shift in EC/OC split with 1 January 2005 TOR hardware upgrade

    E-Print Network [OSTI]

    Fischer, Emily V.

    @crocker.ucdavis.edu Supporting information After extensive testing, new hardware for IMPROVE_A Thermal/Optical Carbon (TOR repeatability of the analytical protocol. With the statistical power available from 2+ years of routine data. The differences are not the same at all sites (Figure 1), but the new data generally identify a higher proportion

  10. Cloaker: Hardware Supported Rootkit Concealment Francis M. David, Ellick M. Chan, Jeffrey C. Carlyle, Roy H. Campbell

    E-Print Network [OSTI]

    Gunter, Carl A.

    Cloaker: Hardware Supported Rootkit Concealment Francis M. David, Ellick M. Chan, Jeffrey C defenders. In order to explore the next step in rootkit evolution and to build strong defenses, we look at this issue from the point of view of an attacker. We construct Cloaker, a proof-of-concept rootkit

  11. Solar Assisted Heat Pump Studies: Heat Pump Hardware and Experiments, Simulations, Earth Coupling Contracts and Supporting Contracts

    SciTech Connect (OSTI)

    Kush, E. A.

    1980-01-01T23:59:59.000Z

    The status of the heat pump hardware development contracts, the results to date of the BNL in-house heat pumps experiments, the progress of the contractural effort in earth coupling and the activities of various supporting contracts are summarized. (MHR)

  12. The Community Environmental Monitoring Program in the 21st Century: The Evolution of a Monitoring Network

    SciTech Connect (OSTI)

    Hartwell, W.T.; Tappen, J.; Karr, L.

    2007-01-19T23:59:59.000Z

    This paper focuses on the evolution of the various operational aspects of the Community Environmental Monitoring Program (CEMP) network following the transfer of program administration from the U.S. Environmental Protection Agency (EPA) to the Desert Research Institute (DRI) of the Nevada System of Higher Education in 1999-2000. The CEMP consists of a network of 29 fixed radiation and weather monitoring stations located in Nevada, Utah, and California. Its mission is to involve stakeholders directly in monitoring for airborne radiological releases to the off site environment as a result of past or ongoing activities on the Nevada Test Site (NTS) and to make data as transparent and accessible to the general public as feasible. At its inception in 1981, the CEMP was a cooperative project of the U.S. Department of Energy (DOE), DRI, and EPA. In 1999-2000, technical administration of the CEMP transitioned from EPA to DRI. Concurrent with and subsequent to this transition, station and program operations underwent significant enhancements that furthered the mission of the program. These enhancements included the addition of a full suite of meteorological instrumentation, state-of-the-art electronic data collectors, on-site displays, and communications hardware. A public website was developed. Finally, the DRI developed a mobile monitoring station that can be operated entirely on solar power in conjunction with a deep-cell battery, and includes all meteorological sensors and a pressurized ion chamber for detecting background gamma radiation. Final station configurations have resulted in the creation of a platform that is well suited for use as an in-field multi-environment test-bed for prototype environmental sensors and in interfacing with other scientific and educational programs. Recent and near-future collaborators have included federal, state, and local agencies in both the government and private sectors. The CEMP also serves as a model for other programs wishing to involve stakeholders with a meaningful role in the process of monitoring and data collection.

  13. Google matrix analysis of directed networks

    E-Print Network [OSTI]

    Leonardo Ermann; Klaus M. Frahm; Dima L. Shepelyansky

    2014-09-01T23:59:59.000Z

    In past ten years, modern societies developed enormous communication and social networks. Their classification and information retrieval processing become a formidable task for the society. Due to the rapid growth of World Wide Web, social and communication networks, new mathematical methods have been invented to characterize the properties of these networks on a more detailed and precise level. Various search engines are essentially using such methods. It is highly important to develop new tools to classify and rank enormous amount of network information in a way adapted to internal network structures and characteristics. This review describes the Google matrix analysis of directed complex networks demonstrating its efficiency on various examples including World Wide Web, Wikipedia, software architecture, world trade, social and citation networks, brain neural networks, DNA sequences and Ulam networks. The analytical and numerical matrix methods used in this analysis originate from the fields of Markov chains, quantum chaos and Random Matrix theory.

  14. Google matrix analysis of directed networks

    E-Print Network [OSTI]

    Leonardo Ermann; Klaus M. Frahm; Dima L. Shepelyansky

    2015-06-19T23:59:59.000Z

    In past ten years, modern societies developed enormous communication and social networks. Their classification and information retrieval processing become a formidable task for the society. Due to the rapid growth of World Wide Web, social and communication networks, new mathematical methods have been invented to characterize the properties of these networks on a more detailed and precise level. Various search engines are essentially using such methods. It is highly important to develop new tools to classify and rank enormous amount of network information in a way adapted to internal network structures and characteristics. This review describes the Google matrix analysis of directed complex networks demonstrating its efficiency on various examples including World Wide Web, Wikipedia, software architecture, world trade, social and citation networks, brain neural networks, DNA sequences and Ulam networks. The analytical and numerical matrix methods used in this analysis originate from the fields of Markov chains, quantum chaos and Random Matrix theory.

  15. An evaluation of parallel optimization for OpenSolaris Network Stack

    SciTech Connect (OSTI)

    Zou, Hongbo; Wu, Wenji; /Fermilab; Sun, Xian-He; /IIT, Chicago; DeMar, Phil; Crawford, Matt; /Fermilab

    2010-10-01T23:59:59.000Z

    Computing is now shifting towards multiprocessing. The fundamental goal of multiprocessing is improved performance through the introduction of additional hardware threads or cores (referred to as 'cores' for simplicity). Modern network stacks can exploit parallel cores to allow either message-based parallelism or connection-based parallelism as a means to enhance performance. OpenSolaris has redesigned and parallelized to better utilize additional cores. Three special technologies, named Softring Set, Soft ring and Squeue are introduced in OpenSolaris for stack parallelization. In this paper, we study the OpenSolaris packet receiving process and its core parallelism optimization techniques. Experiment results show that these techniques allow OpenSolaris to achieve better network I/O performance in multiprocessing environments; however, network stack parallelization has also brought extra overheads for system. An effective and efficient network I/O optimization in multiprocessing environments is required to cross all levers of the network stack from network interface to application.

  16. Modular sensor network node

    DOE Patents [OSTI]

    Davis, Jesse Harper Zehring (Berkeley, CA); Stark, Jr., Douglas Paul (Tracy, CA); Kershaw, Christopher Patrick (Hayward, CA); Kyker, Ronald Dean (Livermore, CA)

    2008-06-10T23:59:59.000Z

    A distributed wireless sensor network node is disclosed. The wireless sensor network node includes a plurality of sensor modules coupled to a system bus and configured to sense a parameter. The parameter may be an object, an event or any other parameter. The node collects data representative of the parameter. The node also includes a communication module coupled to the system bus and configured to allow the node to communicate with other nodes. The node also includes a processing module coupled to the system bus and adapted to receive the data from the sensor module and operable to analyze the data. The node also includes a power module connected to the system bus and operable to generate a regulated voltage.

  17. Sensor networks for social networks

    E-Print Network [OSTI]

    Farry, Michael P. (Michael Patrick)

    2006-01-01T23:59:59.000Z

    This thesis outlines the development of software that makes use of Bayesian belief networks and signal processing techniques to make meaningful inferences about real-world phenomena using data obtained from sensor networks. ...

  18. Fabrication of gas turbine water-cooled composite nozzle and bucket hardware employing plasma spray process

    DOE Patents [OSTI]

    Schilke, Peter W. (4 Hempshire Ct., Scotia, NY 12302); Muth, Myron C. (R.D. #3, Western Ave., Amsterdam, NY 12010); Schilling, William F. (301 Garnsey Rd., Rexford, NY 12148); Rairden, III, John R. (6 Coronet Ct., Schenectady, NY 12309)

    1983-01-01T23:59:59.000Z

    In the method for fabrication of water-cooled composite nozzle and bucket hardware for high temperature gas turbines, a high thermal conductivity copper alloy is applied, employing a high velocity/low pressure (HV/LP) plasma arc spraying process, to an assembly comprising a structural framework of copper alloy or a nickel-based super alloy, or combination of the two, and overlying cooling tubes. The copper alloy is plamsa sprayed to a coating thickness sufficient to completely cover the cooling tubes, and to allow for machining back of the copper alloy to create a smooth surface having a thickness of from 0.010 inch (0.254 mm) to 0.150 inch (3.18 mm) or more. The layer of copper applied by the plasma spraying has no continuous porosity, and advantageously may readily be employed to sustain a pressure differential during hot isostatic pressing (HIP) bonding of the overall structure to enhance bonding by solid state diffusion between the component parts of the structure.

  19. Expansion of the internet protocol address space with "minor" disruption of current hardware or software

    E-Print Network [OSTI]

    Wheatley, Philip Stephen

    1996-01-01T23:59:59.000Z

    Currently, the Internet suite of protocols uses a 32 bit network layer address and requires that each machine have a unique address. The problem: 32 bits only distinguishes 2 32 or 4,294,967,296 machines. Even with four billion addresses, experts...

  20. THE ALUMNI MAGAZINE INCLUDING BILLET & GENERAL COUNCIL PAPERS SUMMER 2010

    E-Print Network [OSTI]

    Hall, Christopher

    their unique careers (page 20), and our new section, Master & Apprentice (page 26), takes a look at how you Alumni Network 26 Master & Apprentice 28 My Edinburgh 30 Then & Now 33 Billet ON THE MOVE? If you have

  1. [Article 1 of 7: Motivates and Includes the Consumer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    moderngriddocsResists%20AttackFinal%20v20.pdf Summary The U.S. energy infrastructure is a huge network of electric generating facilities and transmission lines,...

  2. End-to-end network/application performance troubleshooting methodology

    SciTech Connect (OSTI)

    Wu, Wenji; Bobyshev, Andrey; Bowden, Mark; Crawford, Matt; Demar, Phil; Grigaliunas, Vyto; Grigoriev, Maxim; Petravick, Don; /Fermilab

    2007-09-01T23:59:59.000Z

    The computing models for HEP experiments are globally distributed and grid-based. Obstacles to good network performance arise from many causes and can be a major impediment to the success of the computing models for HEP experiments. Factors that affect overall network/application performance exist on the hosts themselves (application software, operating system, hardware), in the local area networks that support the end systems, and within the wide area networks. Since the computer and network systems are globally distributed, it can be very difficult to locate and identify the factors that are hurting application performance. In this paper, we present an end-to-end network/application performance troubleshooting methodology developed and in use at Fermilab. The core of our approach is to narrow down the problem scope with a divide and conquer strategy. The overall complex problem is split into two distinct sub-problems: host diagnosis and tuning, and network path analysis. After satisfactorily evaluating, and if necessary resolving, each sub-problem, we conduct end-to-end performance analysis and diagnosis. The paper will discuss tools we use as part of the methodology. The long term objective of the effort is to enable site administrators and end users to conduct much of the troubleshooting themselves, before (or instead of) calling upon network and operating system 'wizards,' who are always in short supply.

  3. Cognitive Radio Networks as Sensor Networks

    E-Print Network [OSTI]

    Bandari, Dorna; Yang, Seung R.; Zhao, Yue; Pottie, Gregory

    2007-01-01T23:59:59.000Z

    assuming the cognitive radios know their own coordinates.Networked Sensing Cognitive Radio Networks As SensorIntroduction: Cognitive Radio (CR) Networks The Need For

  4. Development of an ultra-safe, ultra-low-emissions natural gas-fueled school bus: Phase 2, prototype hardware development

    SciTech Connect (OSTI)

    Kubesh, J. [Southwest Research Inst., San Antonio, TX (United States)

    1996-04-01T23:59:59.000Z

    This report summarizes work done on Phase 2, ``Prototype Hardware Development`` of Southwest Research Institute (SwRI) Project No. 03-6871, ``Development of an Ultra-Safe, Ultra-Low-Emissions Alternative-Fueled School Bus``. A prototype school bus was designed and constructed. This bus incorporated many new technologies to increase the safety of the bus passengers as well as pedestrians boarding and leaving the bus. These technologies emphasized increased visibility between the bus driver and pedestrians or vehicles, and included the use of high intensity discharge lighting, pedestrian and vehicle detection systems, and remote-mounted cameras. Passenger safety was also stressed, with the application of seat belts and improved emergency exits and lighting. A natural gas-fueled engine was developed for powering the bus. The development process focused primarily on improvements to the lean operation of the engine and control system advancements. The control system development included investigations into alternative control algorithms for steady-state and transient operation, various fuel metering devices, as well as new methods for wastegate control, knock and misfire detection, and catalyst monitoring. Both the vehicle and engine systems represent state-of-the-art technologies. Integration of the vehicle and engine is planned for the next phase of the project, followed by a demonstration test of the overall vehicle system.

  5. approach including back-translation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    fits, inflaton excursions can safely take sub-Planckian values. Boubekeur, Lotfi; Mena, Olga; Ramrez, Hctor 2014-01-01 320 Software Engineering Approaches to Semantic Web...

  6. analysis including long-term: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Ecology Websites Summary: IAEA-TECDOC-1403 The long term stabilization of uranium mill tailings Final report of a co-ordinated research project 2000-2004 August 2004...

  7. anti-platelet therapy including: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to display photos, present photos as a gift, or to protect photos being mailed to family or friends. Detach and Return Detach and Return Detach and Return and Return...

  8. C3E also includes a network of leaders from the public, private, non-profit

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platformBuilding Removal Ongoing atGreenhouse GasesRespond toTable o f

  9. Continuous Time Bayesian Network Approximate Inference and Social Network Applications

    E-Print Network [OSTI]

    Fan, Yu

    2009-01-01T23:59:59.000Z

    Modeling Social Network Dynamics . . . . . . . . . . . .85 Social Network Dynamic85 Static Social Network Models . . . . . . . . . . . . .

  10. Survey of historical incidences with Controls-Structures Interaction and recommended technology improvements needed to put hardware in space

    SciTech Connect (OSTI)

    Ketner, G.L.

    1989-03-01T23:59:59.000Z

    Pacific Northwest Laboratory (PNL) conducted a survey for the Controls-Structures Interaction (CSI) Office of the National Aeronautics and Space Administration's (NASA) Langley Research Center. The purpose of the survey was to collect information documenting past incidences of problems with CSI during design, analysis, ground development, test and/or flight operation of space systems in industry. The survey was conducted to also compile recommended improvements in technology to support future needs for putting hardware into space. 3 refs., 1 tab.

  11. On the performance management of heterogeneous networks using SNMP

    E-Print Network [OSTI]

    Kunapareddy, Padmaja

    1998-01-01T23:59:59.000Z

    Platform, which provides basic plat- form services and developer's environment. HP Network Node Manager is commonly Courtesy-Omnes, A Schlumberger/ Cahle 6 Wireless Company referred to as "HP Open View" which includes the SNMP platform and in addi- tion... CHAPTER Page INTRODUCTION . A B C D Network Management . 1. Network Management Architecture . 2. Network Management Entities Simple Network Management Protocol - SNMP 1. Management Information Base . 2. Operations 3. Message Format 4. Data...

  12. Lori Garver, NASA Deputy Administrator National Network for Manufacturing Innovation

    E-Print Network [OSTI]

    Lori Garver, NASA Deputy Administrator National Network for Manufacturing Innovation Cuyahoga discussion on the President's recently announced initiative, the National Network for Manufacturing the technologies we need for tomorrow's missions. These include projects to transform space laser communications

  13. Mobileflow: Applying SDN to Mobility in Wireless Networks 

    E-Print Network [OSTI]

    Al-Shaikhli, Raghdah

    2014-08-10T23:59:59.000Z

    Wireless technology has become an increasingly popular way for network access. Wireless networks provide efficient, reliable service; supporting a broad range of emerging applications including multimedia streaming and video conferencing. Currently...

  14. Time-Domain Passivity Control of Haptic Interfaces with Tunable Damping Hardware

    E-Print Network [OSTI]

    Hayward, Vincent

    come from a variety of sources including inertia, dry or vis- cous friction, and vibration. Passivity a more general result that includes contributions from quantization and coulomb friction [9]. Recently

  15. Network Upgrade for the SLC: PEP II Network

    SciTech Connect (OSTI)

    Crane, M.; Call, M.; Clark, S.; Coffman, F.; Himel, T.; Lahey, T.; Miller, E.; Sass, R.; /SLAC

    2011-09-09T23:59:59.000Z

    The PEP-II control system required a new network to support the system functions. This network, called CTLnet, is an FDDI/Ethernet based network using only TCP/IP protocols. An upgrade of the SLC Control System micro communications to use TCP/IP and SLCNET would allow all PEP-II control system nodes to use TCP/IP. CTLnet is private and separate from the SLAC public network. Access to nodes and control system functions is provided by multi-homed application servers with connections to both the private CTLnet and the SLAC public network. Monitoring and diagnostics are provided using a dedicated system. Future plans and current status information is included.

  16. NetworksNetworks andand hypernetworkshypernetworks 33

    E-Print Network [OSTI]

    Vilela Mendes, Rui

    NetworksNetworks andand hypernetworkshypernetworks 33 NetworksNetworks inin economyeconomy Rui.1 #12;TheThe networksnetworks ofof thethe corporatecorporate eliteelite TheThe Elite 16Elite 16 inin informationinformation inin thethe networknetwork !! CorporateCorporate governancegovernance practicespractices

  17. Solar heating and hot water system installed at the Senior Citizen Center, Huntsville, Alabama. [Includes engineering drawings

    SciTech Connect (OSTI)

    Not Available

    1980-02-01T23:59:59.000Z

    Information is provided on the solar energy system installed at the Huntsville Senior Citizen Center. The solar space heating and hot water facility and the project involved in its construction are described in considerable detail and detailed drawings of the complete system and discussions of the planning, the hardware, recommendations, and other pertinent information are included. The facility was designed to provide 85 percent of the hot water and 85 percent of the space heating requirements. Two important factors concerning this project for commercial demonstration are the successful use of silicon oil as a heat transfer fluid and the architecturally aesthetic impact of a large solar energy system as a visual centerpoint. There is no overheat or freeze protection due to the characteristics of the silicon oil and the design of the system. Construction proceeded on schedule with no cost overruns. It is designed to be relatively free of scheduled maintenance, and has experienced practically no problems.

  18. Routing in hybrid networks

    E-Print Network [OSTI]

    Gupta, Avinash

    2001-01-01T23:59:59.000Z

    Hybrid networks are networks that have wired as well as wireless components. Several routing protocols exist for traditional wired networks and mobile ad-hoc networks. However, there are very few routing protocols designed for hybrid networks...

  19. Massive Social Network Analysis: Mining Twitter for Social Good

    SciTech Connect (OSTI)

    Ediger, David; Jiang, Karl; Riedy, Edward J.; Bader, David A.; Corley, Courtney D.; Farber, Robert M.; Reynolds, William

    2010-10-11T23:59:59.000Z

    Social networks produce an enormous quantity of data. Facebook consists of over 400 million active users sharing over 5 billion pieces of information each month. Analyzing this vast quantity of unstructured data presents challenges for software and hardware. We present GraphCT, a Graph Characterization Tooklit for massive graphs representing social network data. On a 128-processor Cray XMT, GraphCT estimates the betweenness centrality of an artificially generated (R-MAT) 537 million vertex, 8.6 billion edge graph in 55 minutes. We use GraphCT to analyze public data from Twitter, a microblogging network. Twitter's message connections appear primarily tree-structured as a news dissemination system. Within the public data, however, are clusters of conversations. Using GraphCT, we can rank actors within these conversations and help analysts focus attention on a much smaller data subset.

  20. Collective network for computer structures

    DOE Patents [OSTI]

    Blumrich, Matthias A; Coteus, Paul W; Chen, Dong; Gara, Alan; Giampapa, Mark E; Heidelberger, Philip; Hoenicke, Dirk; Takken, Todd E; Steinmacher-Burow, Burkhard D; Vranas, Pavlos M

    2014-01-07T23:59:59.000Z

    A system and method for enabling high-speed, low-latency global collective communications among interconnected processing nodes. The global collective network optimally enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the network via links to facilitate performance of low-latency global processing operations at nodes of the virtual network. The global collective network may be configured to provide global barrier and interrupt functionality in asynchronous or synchronized manner. When implemented in a massively-parallel supercomputing structure, the global collective network is physically and logically partitionable according to the needs of a processing algorithm.

  1. Nuclear Arms Control R&D Consortium includes Los Alamos

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclear Arms Control R&D Consortium includes Los Alamos Nuclear Arms Control R&D Consortium includes Los Alamos A consortium led by the University of Michigan that includes LANL as...

  2. Peer-to-Peer Networks Social Networks

    E-Print Network [OSTI]

    Marbach, Peter

    Overview Peer-to-Peer Networks Social Networks Research Hybrid Peer-to-Peer Networks P2P and Online Social Networks: The Best Has Yet to Come Peter Marbach, Dept. of Computer Science University of Toronto P2P and Online Social Networks: The Best Has Yet to Come #12;Overview Peer-to-Peer Networks Social

  3. Fuzzy Logic Based Anomaly Detection for Embedded Network Security Cyber Sensor

    SciTech Connect (OSTI)

    Ondrej Linda; Todd Vollmer; Jason Wright; Milos Manic

    2011-04-01T23:59:59.000Z

    Resiliency and security in critical infrastructure control systems in the modern world of cyber terrorism constitute a relevant concern. Developing a network security system specifically tailored to the requirements of such critical assets is of a primary importance. This paper proposes a novel learning algorithm for anomaly based network security cyber sensor together with its hardware implementation. The presented learning algorithm constructs a fuzzy logic rule based model of normal network behavior. Individual fuzzy rules are extracted directly from the stream of incoming packets using an online clustering algorithm. This learning algorithm was specifically developed to comply with the constrained computational requirements of low-cost embedded network security cyber sensors. The performance of the system was evaluated on a set of network data recorded from an experimental test-bed mimicking the environment of a critical infrastructure control system.

  4. Arithmetic functions in torus and tree networks

    DOE Patents [OSTI]

    Bhanot, Gyan (Princeton, NJ); Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2007-12-25T23:59:59.000Z

    Methods and systems for performing arithmetic functions. In accordance with a first aspect of the invention, methods and apparatus are provided, working in conjunction of software algorithms and hardware implementation of class network routing, to achieve a very significant reduction in the time required for global arithmetic operation on the torus. Therefore, it leads to greater scalability of applications running on large parallel machines. The invention involves three steps in improving the efficiency and accuracy of global operations: (1) Ensuring, when necessary, that all the nodes do the global operation on the data in the same order and so obtain a unique answer, independent of roundoff error; (2) Using the topology of the torus to minimize the number of hops and the bidirectional capabilities of the network to reduce the number of time steps in the data transfer operation to an absolute minimum; and (3) Using class function routing to reduce latency in the data transfer. With the method of this invention, every single element is injected into the network only once and it will be stored and forwarded without any further software overhead. In accordance with a second aspect of the invention, methods and systems are provided to efficiently implement global arithmetic operations on a network that supports the global combining operations. The latency of doing such global operations are greatly reduced by using these methods.

  5. A Roadmap to Success: Hiring, Retaining, and Including People...

    Broader source: Energy.gov (indexed) [DOE]

    A Roadmap to Success: Hiring, Retaining, and Including People with Disabilities A Roadmap to Success: Hiring, Retaining, and Including People with Disabilities December 5, 2014...

  6. [Article 1 of 7: Motivates and Includes the Consumer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and include the consumer exist. Some examples include advanced two-way metering (AMI), demand response (DR), and distributed energy resources (DER). A common misconception is...

  7. Including Retro-Commissioning in Federal Energy Savings Performance...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Including Retro-Commissioning in Federal Energy Savings Performance Contracts Including Retro-Commissioning in Federal Energy Savings Performance Contracts Document describes...

  8. Investigations into the Nature of Halogen Bonding Including Symmetry...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    into the Nature of Halogen Bonding Including Symmetry Adapted Perturbation Theory Analyses. Investigations into the Nature of Halogen Bonding Including Symmetry Adapted...

  9. From the book Networks, Crowds, and Markets: Reasoning about a Highly Connected World. By David Easley and Jon Kleinberg. Cambridge University Press, 2010.

    E-Print Network [OSTI]

    Kleinberg, Jon

    transmission based on coughs and sneezes, the contact network will include a huge number of links, including

  10. A study on the generation of silicon-based hardware Plc by means of the direct conversion of the ladder diagram to circuit design language

    E-Print Network [OSTI]

    Du, Daoshan; Xu, Xiaodong; Yamazaki, Kazuo

    2010-01-01T23:59:59.000Z

    to implement FPGA-based PLC with high efficient performance,of silicon-based hardware Plc by means of the directProgrammable logic controller (PLC) is one of the most

  11. Brandeis University prohibits all forms of sexual misconduct (including sexual

    E-Print Network [OSTI]

    Snider, Barry B.

    -736-3677 brandeis.edu/studentaffairs/health screening, treatment and follow-up care for sexually transmittedGLy) 617-227-4313 www.bagly.org the Network/La Red 617-742-4911 www.tnlr.org Rape, abuse & Incest National

  12. Extending ACNET communication types to include multicast semantics

    SciTech Connect (OSTI)

    Neswold, R.; King, C.; /Fermilab

    2009-10-01T23:59:59.000Z

    In Fermilab's accelerator control system, multicast communication wasn't properly incorporated into ACNET's transport layer, nor in its programming API. We present some recent work that makes multicasts naturally fit in the ACNET network environment. We also show how these additions provide high-availability for ACNET services.

  13. RNEDE: Resilient Network Design Environment

    SciTech Connect (OSTI)

    Venkat Venkatasubramanian, Tanu Malik, Arun Giridh; Craig Rieger; Keith Daum; Miles McQueen

    2010-08-01T23:59:59.000Z

    Modern living is more and more dependent on the intricate web of critical infrastructure systems. The failure or damage of such systems can cause huge disruptions. Traditional design of this web of critical infrastructure systems was based on the principles of functionality and reliability. However, it is increasingly being realized that such design objectives are not sufficient. Threats, disruptions and faults often compromise the network, taking away the benefits of an efficient and reliable design. Thus, traditional network design parameters must be combined with self-healing mechanisms to obtain a resilient design of the network. In this paper, we present RNEDEa resilient network design environment that that not only optimizes the network for performance but tolerates fluctuations in its structure that result from external threats and disruptions. The environment evaluates a set of remedial actions to bring a compromised network to an optimal level of functionality. The environment includes a visualizer that enables the network administrator to be aware of the current state of the network and the suggested remedial actions at all times.

  14. IEEE 342 Node Low Voltage Networked Test System

    SciTech Connect (OSTI)

    Schneider, Kevin P.; Phanivong, Phillippe K.; Lacroix, Jean-Sebastian

    2014-07-31T23:59:59.000Z

    The IEEE Distribution Test Feeders provide a benchmark for new algorithms to the distribution analyses community. The low voltage network test feeder represents a moderate size urban system that is unbalanced and highly networked. This is the first distribution test feeder developed by the IEEE that contains unbalanced networked components. The 342 node Low Voltage Networked Test System includes many elements that may be found in a networked system: multiple 13.2kV primary feeders, network protectors, a 120/208V grid network, and multiple 277/480V spot networks. This paper presents a brief review of the history of low voltage networks and how they evolved into the modern systems. This paper will then present a description of the 342 Node IEEE Low Voltage Network Test System and power flow results.

  15. Examining System-Wide Impacts of Solar PV Control Systems with a Power Hardware-in-the-Loop Platform

    SciTech Connect (OSTI)

    Williams, Tess L.; Fuller, Jason C.; Schneider, Kevin P.; Palmintier, Bryan; Lundstrom, Blake; Chakraborty, Sudipta

    2014-10-11T23:59:59.000Z

    High penetration levels of distributed solar PV power generation can lead to adverse power quality impacts such as excessive voltage rise, voltage flicker, and reactive power values that result in unacceptable voltage levels. Advanced inverter control schemes have been proposed that have the potential to mitigate many power quality concerns. However, closed-loop control may lead to unintended behavior in deployed systems as complex interactions can occur between numerous operating devices. In order to enable the study of the performance of advanced control schemes in a detailed distribution system environment, a Hardware-in-the-Loop (HIL) platform has been developed. In the HIL system, GridLAB-D, a distribution system simulation tool, runs in real-time mode at the Pacific Northwest National Laboratory (PNNL) and supplies power system parameters at a point of common coupling to hardware located at the National Renewable Energy Laboratory (NREL). Hardware inverters interact with grid and PV simulators emulating an operational distribution system and power output from the inverters is measured and sent to PNNL to update the real-time distribution system simulation. The platform is described and initial test cases are presented. The platform is used to study the system-wide impacts and the interactions of controls applied to inverters that are integrated into a simulation of the IEEE 8500-node test feeder, with inverters in either constant power factor control or active volt/VAR control. We demonstrate that this HIL platform is well-suited to the study of advanced inverter controls and their impacts on the power quality of a distribution feeder. Additionally, the results from HIL are used to validate GridLAB-D simulations of advanced inverter controls. ?

  16. Biomarkers Core Lab Price List Does NOT Include

    E-Print Network [OSTI]

    Grishok, Alla

    v3102014 Biomarkers Core Lab Price List Does NOT Include Kit Cost PURCHASED by INVESTIGATOR/1/2013 Page 1 of 5 #12;Biomarkers Core Lab Price List Does NOT Include Kit Cost PURCHASED by INVESTIGATOR

  17. Example Retro-Commissioning Scope of Work to Include Services...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Retro-Commissioning Scope of Work to Include Services as Part of an ESPC Investment-Grade Audit Example Retro-Commissioning Scope of Work to Include Services as Part of an ESPC...

  18. adrenal diffuse large: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    diffusion is the effect of geometry, including the localization of aftershocks on a fractal fault network and the impact of extended rupture lengths which control the typical...

  19. adolescent sexual health: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    factors 1 such as poverty, family distress, sexual networks 2, and access to health care as well as the impact of raceethnicity, being young 3, gender (including...

  20. Phoebus: Network Middleware for Next-Generation Network Computing

    SciTech Connect (OSTI)

    Martin Swany

    2012-06-16T23:59:59.000Z

    The Phoebus project investigated algorithms, protocols, and middleware infrastructure to improve end-to-end performance in high speed, dynamic networks. The Phoebus system essentially serves as an adaptation point for networks with disparate capabilities or provisioning. This adaptation can take a variety of forms including acting as a provisioning agent across multiple signaling domains, providing transport protocol adaptation points, and mapping between distributed resource reservation paradigms and the optical network control plane. We have successfully developed the system and demonstrated benefits. The Phoebus system was deployed in Internet2 and in ESnet, as well as in GEANT2, RNP in Brazil and over international links to Korea and Japan. Phoebus is a system that implements a new protocol and associated forwarding infrastructure for improving throughput in high-speed dynamic networks. It was developed to serve the needs of large DOE applications on high-performance networks. The idea underlying the Phoebus model is to embed Phoebus Gateways (PGs) in the network as on-ramps to dynamic circuit networks. The gateways act as protocol translators that allow legacy applications to use dedicated paths with high performance.

  1. Wireless Sensor Network for Advanced Energy Management Solutions

    SciTech Connect (OSTI)

    Peter J. Theisen; Bin Lu, Charles J. Luebke

    2009-09-23T23:59:59.000Z

    Eaton has developed an advanced energy management solution that has been deployed to several Industries of the Future (IoF) sites. This demonstrated energy savings and reduced unscheduled downtime through an improved means for performing predictive diagnostics and energy efficiency estimation. Eaton has developed a suite of online, continuous, and inferential algorithms that utilize motor current signature analysis (MCSA) and motor power signature analysis (MPSA) techniques to detect and predict the health condition and energy usage condition of motors and their connect loads. Eaton has also developed a hardware and software platform that provided a means to develop and test these advanced algorithms in the field. Results from lab validation and field trials have demonstrated that the developed advanced algorithms are able to detect motor and load inefficiency and performance degradation. Eaton investigated the performance of Wireless Sensor Networks (WSN) within various industrial facilities to understand concerns about topology and environmental conditions that have precluded broad adoption by the industry to date. A Wireless Link Assessment System (WLAS), was used to validate wireless performance under a variety of conditions. Results demonstrated that wireless networks can provide adequate performance in most facilities when properly specified and deployed. Customers from various IoF expressed interest in applying wireless more broadly for selected applications, but continue to prefer utilizing existing, wired field bus networks for most sensor based applications that will tie into their existing Computerized Motor Maintenance Systems (CMMS). As a result, wireless technology was de-emphasized within the project, and a greater focus placed on energy efficiency/predictive diagnostics. Commercially available wireless networks were only utilized in field test sites to facilitate collection of motor wellness information, and no wireless sensor network products were developed under this project. As an outgrowth of this program, Eaton developed a patented energy-optimizing drive control technology that is complementary to a traditional variable frequency drives (VFD) to enable significant energy savings for motors with variable torque applications, such as fans, pumps, and compressors. This technology provides an estimated energy saving of 2%-10% depending on the loading condition, in addition to the savings obtained from a traditional VFD. The combination of a VFD with the enhanced energy-optimizing controls will provide significant energy savings (10% to 70% depending on the load and duty cycle) for motors that are presently connected with across the line starters. It will also provide a more favorable return on investment (ROI), thus encouraging industries to adopt VFDs for more motors within their facilities. The patented technology is based on nonintrusive algorithms that estimate the instantaneous operating efficiency and motor speed and provide active energy-optimizing control of a motor, using only existing voltage and current sensors. This technology is currently being commercialized by Eaton’s Industrial Controls Division in their next generation motor control products. Due to the common nonintrusive and inferential nature of various algorithms, this same product can also include motor and equipment condition monitoring features, providing the facility owner additional information to improve process uptime and the associated energy savings. Calculations estimated potential energy savings of 261,397GWh/Yr ($15.7B/yr), through retrofitting energy-optimizing VFDs into existing facilities, and incorporating the solution into building equipment sold by original equipment manufacturers (OEMs) and installed by mechanical and electrical contractors. Utilizing MCSA and MPSA for predictive maintenance (PM) of motors and connected equipment reduces process downtime cost and the cost of wasted energy associated with shutting down and restarting the processes. Estimated savings vary depending on the industry segment and equi

  2. Networks, smart grids: new model for synchronization

    E-Print Network [OSTI]

    - 1 - Networks, smart grids: new model for synchronization May 21, 2013 Networks of individual scenarios and in smart grid applications. "Smart grid" refers to technology to modernize utility electricity in a volatile smart grid scenario that included fluctuating loads with random power demand, renewable energy

  3. Metropolitan area network support at Fermilab

    SciTech Connect (OSTI)

    DeMar, Phil; Andrews, Chuck; Bobyshev, Andrey; Crawford, Matt; Colon, Orlando; Fry, Steve; Grigaliunas, Vyto; Lamore, Donna; Petravick, Don; /Fermilab

    2007-09-01T23:59:59.000Z

    Advances in wide area network service offerings, coupled with comparable developments in local area network technology have enabled many research sites to keep their offsite network bandwidth ahead of demand. For most sites, the more difficult and costly aspect of increasing wide area network capacity is the local loop, which connects the facility LAN to the wide area service provider(s). Fermilab, in coordination with neighboring Argonne National Laboratory, has chosen to provide its own local loop access through leasing of dark fiber to nearby network exchange points, and procuring dense wave division multiplexing (DWDM) equipment to provide data channels across those fibers. Installing and managing such optical network infrastructure has broadened the Laboratory's network support responsibilities to include operating network equipment that is located off-site, and is technically much different than classic LAN network equipment. Effectively, the Laboratory has assumed the role of a local service provider. This paper will cover Fermilab's experiences with deploying and supporting a Metropolitan Area Network (MAN) infrastructure to satisfy its offsite networking needs. The benefits and drawbacks of providing and supporting such a service will be discussed.

  4. Robust Target Localization from Binary Decisions in Wireless Sensor Networks

    E-Print Network [OSTI]

    Michailidis, George

    Robust Target Localization from Binary Decisions in Wireless Sensor Networks Natallia Katenka Wireless sensor networks (WSN) are becoming an important tool in a variety of tasks, including mon- itoring targets and localizing multiple targets are also considered. Keywords: wireless sensor network, target

  5. Performance, Algorithmic, and Robustness Attributes of Perfect Difference Networks

    E-Print Network [OSTI]

    Liebling, Michael

    tolerance relative to their complexity or implementation cost. Index Terms--Bipartite graph, chordal ring to interconnection networks with similar cost/performance, including certain generalized hypercubes of these networks, concluding that PDNs and their derivatives allow the construction of very low diameter networks

  6. CSP 545: Wireless Networking Technologies and Applications Yi-Bing Lin, Imrich Chlamtac, Wireless and Mobile Network Architectures.

    E-Print Network [OSTI]

    Heller, Barbara

    CSP 545: Wireless Networking Technologies and Applications Texts Yi-Bing Lin, Imrich Chlamtac, Wireless and Mobile Network Architectures. Reference: Theodore S. Rappaport, Theodore Rappaport, Wireless local area network technologies including 802.11b (wireless Ethernet) and Bluetooth, and third

  7. Ideally Glassy Hydrogen Bonded Networks

    E-Print Network [OSTI]

    J. C. Phillips

    2005-08-05T23:59:59.000Z

    The axiomatic theory of ideally glassy networks, which has proved effective in describing phase diagrams and properties of chalcogenide and oxide glasses and their foreign interfaces, is broadened here to include intermolecular interactions in hydrogen-bonded polyalcohols such as glycerol, monosaccharides (glucose), and the optimal bioprotective hydrogen-bonded disaccharide networks formed from trehalose. The methods of Lagrangian mechanics and Maxwellian scaffolds are useful at the molecular level when bonding hierarchies are characterized by constraint counting similar to the chemical methods used by Huckel and Pauling. Whereas Newtonian molecular dynamical methods are useful for simulating large-scale interactions for times of order 10 ps, constraint counting describes network properties on glassy (almost equilibrated) time scales, which may be of cosmological order for oxide glasses, or years for trehalose. The ideally glassy network of trehalose may consist of extensible tandem sandwich arrays.

  8. Validating real-time implementations of diagonal recurrent neural network and fuzzy logic controllers for nuclear reactor control

    SciTech Connect (OSTI)

    Ramaswamy, P.; Edwards, R.M.; Lee, K.Y.

    1994-12-31T23:59:59.000Z

    A diagonal recurrent neural network (DRNN) and a fuzzy logic controller (FLC) were designed for optimal temperature control. The DRNN and FLC utilize the response of a fifth-order, one delayed neutron group linear model to an optimal controller that was previously designed. In this paper, the results of testing a real-time implementation of the DRNN and FLC are presented. The method of testing that was utilized is called hardware in loop simulation (HILS). Here, a distributed simulation of a highly non-linear model of the reactor on a network of workstations is used in the final step of testing prior to experimentation on the reactor. Also, in this setup actual control hardware is used to validate the controller realizations.

  9. Implementation of the Epics Device Support for Network-Based Controllers

    E-Print Network [OSTI]

    Furukawa, K; Kamikubota, N; Nakagawa, H

    2001-01-01T23:59:59.000Z

    In the control system of the JAERI-KEK joint project (High Intensity Proton Accelerator Facility), it is planned to employ network-based controllers such as PLC's and measurement stations instead of using other field control networks, since the network hardware and software can be standardized and they have been successfully utilized in other accelerator control systems in KEK. EPICS software support for those controllers was designed paying special attention to robustness and has been implemented and applied for the accelerator test stand. Basic functionalities were confirmed and miscellaneous functions such as diagnosis of the software itself would be added. Since many kinds of network-based equipment such as oscilloscopes have become available recently, they are considered to be integrated as well. They may enable more manageable controllers.

  10. Quantization in acquisition and computation networks

    E-Print Network [OSTI]

    Sun, John Zheng

    2013-01-01T23:59:59.000Z

    In modern systems, it is often desirable to extract relevant information from large amounts of data collected at different spatial locations. Applications include sensor networks, wearable health-monitoring devices and a ...

  11. Hierarchical Hybrid Power Supply Networks Farinaz Koushanfar

    E-Print Network [OSTI]

    management, hybrid power supply, supercapacitors 1. INTRODUCTION AND MOTIVATION Historically, almost all in a hierarchical power sup- ply network would include batteries, supercapacitors, ionic supercapacitors, and future cycle, supercapacitors are advantageous rel- ative to the standard che

  12. Imbibition well stimulation via neural network design

    DOE Patents [OSTI]

    Weiss, William (Socorro, NM)

    2007-08-14T23:59:59.000Z

    A method for stimulation of hydrocarbon production via imbibition by utilization of surfactants. The method includes use of fuzzy logic and neural network architecture constructs to determine surfactant use.

  13. Introduction to Small-Scale Wind Energy Systems (Including RETScreen...

    Open Energy Info (EERE)

    Introduction to Small-Scale Wind Energy Systems (Including RETScreen Case Study) (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Introduction to Small-Scale...

  14. Laboratory Curiosity rover ChemCam team, including Los Alamos...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MEXICO, August 23, 2012-Members of the Mars Science Laboratory Curiosity rover ChemCam team, including Los Alamos National Laboratory scientists, squeezed in a little extra target...

  15. PLOT: A UNIX PROGRAM FOR INCLUDING GRAPHICS IN DOCUMENTS

    E-Print Network [OSTI]

    Curtis, Pavel

    2013-01-01T23:59:59.000Z

    simple, easy-to-read graphics language designed specificallyPROGRAM FOR INCLUDING GRAPHICS IN DOCUMENTS Pavel Curtismeanings as in the GRAFPAC graphics system. Definl. ~ tions

  16. Energy Department Expands Gas Gouging Reporting System to Include...

    Energy Savers [EERE]

    Washington, DC - Energy Secretary Samuel W. Bodman announced today that the Department of Energy has expanded its gas gouging reporting system to include a toll-free telephone...

  17. Performance Metric Sensitivity Computation for Optimization and Trade-off Analysis in Wireless Networks

    E-Print Network [OSTI]

    Baras, John S.

    for multi- hop wireless networks, including MANETs. We introduce an approximate (throughput) loss model is the different nature of wired and wireless networks rendering the use of wired network techniques inappropriate for the case of wireless networks. Key quantities, such as the link capacity, that remain constant in a wired

  18. analog readout electronics: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    that is easily implemented in hardware. Recently, by using a time-multiplexed architecture, hardware reservoir computers have reached performance comparable to digital...

  19. Structure-Preserving Sparsification of Social Networks

    E-Print Network [OSTI]

    Lindner, Gerd; Hamann, Michael; Meyerhenke, Henning; Wagner, Dorothea

    2015-01-01T23:59:59.000Z

    Sparsification reduces the size of networks while preserving structural and statistical properties of interest. Various sparsifying algorithms have been proposed in different contexts. We contribute the first systematic conceptual and experimental comparison of \\textit{edge sparsification} methods on a diverse set of network properties. It is shown that they can be understood as methods for rating edges by importance and then filtering globally by these scores. In addition, we propose a new sparsification method (\\textit{Local Degree}) which preserves edges leading to local hub nodes. All methods are evaluated on a set of 100 Facebook social networks with respect to network properties including diameter, connected components, community structure, and multiple node centrality measures. Experiments with our implementations of the sparsification methods (using the open-source network analysis tool suite NetworKit) show that many network properties can be preserved down to about 20\\% of the original set of edges....

  20. Secure and efficient wireless networks

    E-Print Network [OSTI]

    Bellardo, John Michael

    2006-01-01T23:59:59.000Z

    CA Systems and Network Administrator California Integrationgives the campus network administrators complete admissionin engineered networks, enterprise administrators try to

  1. Articles which include chevron film cooling holes, and related processes

    DOE Patents [OSTI]

    Bunker, Ronald Scott; Lacy, Benjamin Paul

    2014-12-09T23:59:59.000Z

    An article is described, including an inner surface which can be exposed to a first fluid; an inlet; and an outer surface spaced from the inner surface, which can be exposed to a hotter second fluid. The article further includes at least one row or other pattern of passage holes. Each passage hole includes an inlet bore extending through the substrate from the inlet at the inner surface to a passage hole-exit proximate to the outer surface, with the inlet bore terminating in a chevron outlet adjacent the hole-exit. The chevron outlet includes a pair of wing troughs having a common surface region between them. The common surface region includes a valley which is adjacent the hole-exit; and a plateau adjacent the valley. The article can be an airfoil. Related methods for preparing the passage holes are also described.

  2. ASCR Science Network Requirements

    SciTech Connect (OSTI)

    Dart, Eli; Tierney, Brian

    2009-08-24T23:59:59.000Z

    The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the US Department of Energy Office of Science, the single largest supporter of basic research in the physical sciences in the United States. In support of the Office of Science programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In April 2009 ESnet and the Office of Advanced Scientific Computing Research (ASCR), of the DOE Office of Science, organized a workshop to characterize the networking requirements of the programs funded by ASCR. The ASCR facilities anticipate significant increases in wide area bandwidth utilization, driven largely by the increased capabilities of computational resources and the wide scope of collaboration that is a hallmark of modern science. Many scientists move data sets between facilities for analysis, and in some cases (for example the Earth System Grid and the Open Science Grid), data distribution is an essential component of the use of ASCR facilities by scientists. Due to the projected growth in wide area data transfer needs, the ASCR supercomputer centers all expect to deploy and use 100 Gigabit per second networking technology for wide area connectivity as soon as that deployment is financially feasible. In addition to the network connectivity that ESnet provides, the ESnet Collaboration Services (ECS) are critical to several science communities. ESnet identity and trust services, such as the DOEGrids certificate authority, are widely used both by the supercomputer centers and by collaborations such as Open Science Grid (OSG) and the Earth System Grid (ESG). Ease of use is a key determinant of the scientific utility of network-based services. Therefore, a key enabling aspect for scientists beneficial use of high performance networks is a consistent, widely deployed, well-maintained toolset that is optimized for wide area, high-speed data transfer (e.g. GridFTP) that allows scientists to easily utilize the services and capabilities that the network provides. Network test and measurement is an important part of ensuring that these tools and network services are functioning correctly. One example of a tool in this area is the recently developed perfSONAR, which has already shown its usefulness in fault diagnosis during the recent deployment of high-performance data movers at NERSC and ORNL. On the other hand, it is clear that there is significant work to be done in the area of authentication and access control - there are currently compatibility problems and differing requirements between the authentication systems in use at different facilities, and the policies and mechanisms in use at different facilities are sometimes in conflict. Finally, long-term software maintenance was of concern for many attendees. Scientists rely heavily on a large deployed base of software that does not have secure programmatic funding. Software packages for which this is true include data transfer tools such as GridFTP as well as identity management and other software infrastructure that forms a critical part of the Open Science Grid and the Earth System Grid.

  3. Sensor network based vehicle classification and license plate identification system

    SciTech Connect (OSTI)

    Frigo, Janette Rose [Los Alamos National Laboratory; Brennan, Sean M [Los Alamos National Laboratory; Rosten, Edward J [Los Alamos National Laboratory; Raby, Eric Y [Los Alamos National Laboratory; Kulathumani, Vinod K [WEST VIRGINIA UNIV.

    2009-01-01T23:59:59.000Z

    Typically, for energy efficiency and scalability purposes, sensor networks have been used in the context of environmental and traffic monitoring applications in which operations at the sensor level are not computationally intensive. But increasingly, sensor network applications require data and compute intensive sensors such video cameras and microphones. In this paper, we describe the design and implementation of two such systems: a vehicle classifier based on acoustic signals and a license plate identification system using a camera. The systems are implemented in an energy-efficient manner to the extent possible using commercially available hardware, the Mica motes and the Stargate platform. Our experience in designing these systems leads us to consider an alternate more flexible, modular, low-power mote architecture that uses a combination of FPGAs, specialized embedded processing units and sensor data acquisition systems.

  4. Turbomachine injection nozzle including a coolant delivery system

    DOE Patents [OSTI]

    Zuo, Baifang (Simpsonville, SC)

    2012-02-14T23:59:59.000Z

    An injection nozzle for a turbomachine includes a main body having a first end portion that extends to a second end portion defining an exterior wall having an outer surface. A plurality of fluid delivery tubes extend through the main body. Each of the plurality of fluid delivery tubes includes a first fluid inlet for receiving a first fluid, a second fluid inlet for receiving a second fluid and an outlet. The injection nozzle further includes a coolant delivery system arranged within the main body. The coolant delivery system guides a coolant along at least one of a portion of the exterior wall and around the plurality of fluid delivery tubes.

  5. Acceleration of the matrix multiplication of Radiance three phase daylighting simulations with parallel computing on heterogeneous hardware of personal computer

    SciTech Connect (OSTI)

    University of Miami; Zuo, Wangda; McNeil, Andrew; Wetter, Michael; Lee, Eleanor S.

    2013-04-30T23:59:59.000Z

    Building designers are increasingly relying on complex fenestration systems to reduce energy consumed for lighting and HVAC in low energy buildings. Radiance, a lighting simulation program, has been used to conduct daylighting simulations for complex fenestration systems. Depending on the configurations, the simulation can take hours or even days using a personal computer. This paper describes how to accelerate the matrix multiplication portion of a Radiance three-phase daylight simulation by conducting parallel computing on heterogeneous hardware of a personal computer. The algorithm was optimized and the computational part was implemented in parallel using OpenCL. The speed of new approach was evaluated using various daylighting simulation cases on a multicore central processing unit and a graphics processing unit. Based on the measurements and analysis of the time usage for the Radiance daylighting simulation, further speedups can be achieved by using fast I/O devices and storing the data in a binary format.

  6. Advanced Photovoltaic Inverter Functionality using 500 kW Power Hardware-in-Loop Complete System Laboratory Testing: Preprint

    SciTech Connect (OSTI)

    Mather, B. A.; Kromer, M. A.; Casey, L.

    2013-01-01T23:59:59.000Z

    With the increasing penetration of distribution connected photovoltaic (PV) systems, more and more PV developers and utilities are interested in easing future PV interconnection concerns by mitigating some of the impacts of PV integration using advanced PV inverter controls and functions. This paper describes the testing of a 500 kW PV inverter using Power Hardware-in-Loop (PHIL) testing techniques. The test setup is described and the results from testing the inverter in advanced functionality modes, not commonly used in currently interconnected PV systems, are presented. PV inverter operation under PHIL evaluation that emulated both the DC PV array connection and the AC distribution level grid connection are shown for constant power factor (PF) and constant reactive power (VAr) control modes. The evaluation of these modes was completed under varying degrees of modeled PV variability.

  7. Toward a Performance/Resilience Tool for Hardware/Software Co-Design of High-Performance Computing Systems

    SciTech Connect (OSTI)

    Engelmann, Christian [ORNL] [ORNL; Naughton, III, Thomas J [ORNL

    2013-01-01T23:59:59.000Z

    xSim is a simulation-based performance investigation toolkit that permits running high-performance computing (HPC) applications in a controlled environment with millions of concurrent execution threads, while observing application performance in a simulated extreme-scale system for hardware/software co-design. The presented work details newly developed features for xSim that permit the injection of MPI process failures, the propagation/detection/notification of such failures within the simulation, and their handling using application-level checkpoint/restart. These new capabilities enable the observation of application behavior and performance under failure within a simulated future-generation HPC system using the most common fault handling technique.

  8. [Article 1 of 7: Motivates and Includes the Consumer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    surges; the extra cost of these premium features can be included in the electric service contract. The Smart Grid will mitigate PQ events that originate in the transmission and...

  9. Including costs of supply chain risk in strategic sourcing decisions

    E-Print Network [OSTI]

    Jain, Avani

    2009-01-01T23:59:59.000Z

    Cost evaluations do not always include the costs associated with risks when organizations make strategic sourcing decisions. This research was conducted to establish and quantify the impact of risks and risk-related costs ...

  10. Subgraphs and network motifs in geometric networks Shalev Itzkovitz and Uri Alon

    E-Print Network [OSTI]

    such as transportation and communication networks, as well as systems constrained in abstract spaces such as multivariate be correlated with closeness in this attribute space 28,29 . Geometric networks can also arise from analysis interactions decay with the distance between nodes. Examples include systems constrained in real space

  11. Limited Personal Use of Government Office Equipment including Information Technology

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-01-07T23:59:59.000Z

    The Order establishes requirements and assigns responsibilities for employees' limited personal use of Government resources (office equipment and other resources including information technology) within DOE, including NNSA. The Order is required to provide guidance on appropriate and inappropriate uses of Government resources. This Order was certified 04/23/2009 as accurate and continues to be relevant and appropriate for use by the Department. Certified 4-23-09. No cancellation.

  12. Hybrid powertrain system including smooth shifting automated transmission

    DOE Patents [OSTI]

    Beaty, Kevin D.; Nellums, Richard A.

    2006-10-24T23:59:59.000Z

    A powertrain system is provided that includes a prime mover and a change-gear transmission having an input, at least two gear ratios, and an output. The powertrain system also includes a power shunt configured to route power applied to the transmission by one of the input and the output to the other one of the input and the output. A transmission system and a method for facilitating shifting of a transmission system are also provided.

  13. Bayesian Networks

    E-Print Network [OSTI]

    Judea Pearl

    2011-01-01T23:59:59.000Z

    including prediction, abduction and control. Evidentialreasoning. Prediction and abduction require an economical

  14. Network Embedded Systems Sensor Networks

    E-Print Network [OSTI]

    Amir, Yair

    Battery Energy Reserve Manager = Bank Each task requests an account with conditions W ­ fraction Tracking 9 #12;Virtual Battery: An Energy Reserve Abstraction for Embedded Sensor Networks Qing Cao of real battery allocated N ­ number of energy installments L ­ expected lifetime of the task C

  15. Exploring network structure, dynamics, and function using networkx

    SciTech Connect (OSTI)

    Hagberg, Aric [Los Alamos National Laboratory; Swart, Pieter [Los Alamos National Laboratory; S Chult, Daniel [COLGATE UNIV

    2008-01-01T23:59:59.000Z

    NetworkX is a Python language package for exploration and analysis of networks and network algorithms. The core package provides data structures for representing many types of networks, or graphs, including simple graphs, directed graphs, and graphs with parallel edges and self loops. The nodes in NetworkX graphs can be any (hashable) Python object and edges can contain arbitrary data; this flexibility mades NetworkX ideal for representing networks found in many different scientific fields. In addition to the basic data structures many graph algorithms are implemented for calculating network properties and structure measures: shortest paths, betweenness centrality, clustering, and degree distribution and many more. NetworkX can read and write various graph formats for eash exchange with existing data, and provides generators for many classic graphs and popular graph models, such as the Erdoes-Renyi, Small World, and Barabasi-Albert models, are included. The ease-of-use and flexibility of the Python programming language together with connection to the SciPy tools make NetworkX a powerful tool for scientific computations. We discuss some of our recent work studying synchronization of coupled oscillators to demonstrate how NetworkX enables research in the field of computational networks.

  16. Solar Energy Education. Renewable energy: a background text. [Includes glossary

    SciTech Connect (OSTI)

    Not Available

    1985-01-01T23:59:59.000Z

    Some of the most common forms of renewable energy are presented in this textbook for students. The topics include solar energy, wind power hydroelectric power, biomass ocean thermal energy, and tidal and geothermal energy. The main emphasis of the text is on the sun and the solar energy that it yields. Discussions on the sun's composition and the relationship between the earth, sun and atmosphere are provided. Insolation, active and passive solar systems, and solar collectors are the subtopics included under solar energy. (BCS)

  17. Methods of producing adsorption media including a metal oxide

    DOE Patents [OSTI]

    Mann, Nicholas R; Tranter, Troy J

    2014-03-04T23:59:59.000Z

    Methods of producing a metal oxide are disclosed. The method comprises dissolving a metal salt in a reaction solvent to form a metal salt/reaction solvent solution. The metal salt is converted to a metal oxide and a caustic solution is added to the metal oxide/reaction solvent solution to adjust the pH of the metal oxide/reaction solvent solution to less than approximately 7.0. The metal oxide is precipitated and recovered. A method of producing adsorption media including the metal oxide is also disclosed, as is a precursor of an active component including particles of a metal oxide.

  18. Metal vapor laser including hot electrodes and integral wick

    DOE Patents [OSTI]

    Ault, Earl R. (Livermore, CA); Alger, Terry W. (Tracy, CA)

    1995-01-01T23:59:59.000Z

    A metal vapor laser, specifically one utilizing copper vapor, is disclosed herein. This laser utilizes a plasma tube assembly including a thermally insulated plasma tube containing a specific metal, e.g., copper, and a buffer gas therein. The laser also utilizes means including hot electrodes located at opposite ends of the plasma tube for electrically exciting the metal vapor and heating its interior to a sufficiently high temperature to cause the metal contained therein to vaporize and for subjecting the vapor to an electrical discharge excitation in order to lase. The laser also utilizes external wicking arrangements, that is, wicking arrangements located outside the plasma tube.

  19. Metal vapor laser including hot electrodes and integral wick

    DOE Patents [OSTI]

    Ault, E.R.; Alger, T.W.

    1995-03-07T23:59:59.000Z

    A metal vapor laser, specifically one utilizing copper vapor, is disclosed herein. This laser utilizes a plasma tube assembly including a thermally insulated plasma tube containing a specific metal, e.g., copper, and a buffer gas therein. The laser also utilizes means including hot electrodes located at opposite ends of the plasma tube for electrically exciting the metal vapor and heating its interior to a sufficiently high temperature to cause the metal contained therein to vaporize and for subjecting the vapor to an electrical discharge excitation in order to lase. The laser also utilizes external wicking arrangements, that is, wicking arrangements located outside the plasma tube. 5 figs.

  20. Watson Library enhancements to include new service desk

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    12/5/13 KU Libraries News: Watson Library enhancements to include new service desk www.lib.ku.edu/news/newservicedesk.shtml 1/1 Contact Us The University of Kansas Libraries Lawrence, KS 66045 (785) 864-8983 Copyright © 2013 by the University... of Kansas Watson Library enhancements to include new service desk The University of Kansas Libraries is adding a new service desk to Watson Library to enhance the user experience and draw attention to new and existing resources. The desk, which...

  1. Thin film solar cell including a spatially modulated intrinsic layer

    DOE Patents [OSTI]

    Guha, Subhendu (Troy, MI); Yang, Chi-Chung (Troy, MI); Ovshinsky, Stanford R. (Bloomfield Hills, MI)

    1989-03-28T23:59:59.000Z

    One or more thin film solar cells in which the intrinsic layer of substantially amorphous semiconductor alloy material thereof includes at least a first band gap portion and a narrower band gap portion. The band gap of the intrinsic layer is spatially graded through a portion of the bulk thickness, said graded portion including a region removed from the intrinsic layer-dopant layer interfaces. The band gap of the intrinsic layer is always less than the band gap of the doped layers. The gradation of the intrinsic layer is effected such that the open circuit voltage and/or the fill factor of the one or plural solar cell structure is enhanced.

  2. United States Export Control Laws Current export laws control both hardware and information regarding a wide range of technologies in a way that

    E-Print Network [OSTI]

    United States Export Control Laws Current export laws control both hardware and information Information and Guidelines: United States Export Control Laws, on the CSU Export Control website (http://web.research.colostate.edu/OSP/export.aspx). 1. What are Export Controls? The United States government has a vested interest in protecting

  3. Proceedings of Multimedia Hardware Architectures 1997, IS&T/SPIE Symposium on Electronic Imaging: Science and Technology, February 1014, 1997, San Jose, California, pp.122133.

    E-Print Network [OSTI]

    Lee, Ruby B.

    Proceedings of Multimedia Hardware Architectures 1997, IS&T/SPIE Symposium on Electronic Imaging Software to the Multimedia Instructions of General­ Purpose Microprocessors Ruby Lee and Larry Mc processing programs may be accelerated by using the multimedia instruction extensions that have been added

  4. Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results

    SciTech Connect (OSTI)

    Ardani, K.; Barbose, G.; Margolis, R.; Wiser, R.; Feldman, D.; Ong, S.

    2012-11-01T23:59:59.000Z

    This report presents results from the first U.S. Department of Energy (DOE) sponsored, bottom-up data-collection and analysis of non-hardware balance-of-system costs--often referred to as 'business process' or 'soft' costs--for residential and commercial photovoltaic (PV) systems.

  5. 112 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 20, NO. 1, JANUARY 2012 A Novel Technique for Improving Hardware Trojan

    E-Print Network [OSTI]

    Plusquellic, James

    about tampering with inserting hardware Trojans in an integrated circuit supply chain in recent years in integrated circuit (IC) market due to eco- nomical profit, with limiting the control of customer over IC112 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 20, NO. 1, JANUARY 2012

  6. Real-time detection of malicious network activity using stochastic models

    E-Print Network [OSTI]

    Jung, Jaeyeon, Ph. D. Massachusetts Institute of Technology

    2006-01-01T23:59:59.000Z

    This dissertation develops approaches to rapidly detect malicious network traffic including packets sent by portscanners and network worms. The main hypothesis is that stochastic models capturing a host's particular ...

  7. Communication devices for network-hopping communications and methods of network-hopping communications

    DOE Patents [OSTI]

    Buttles, John W. (Idaho Falls, ID)

    2011-12-20T23:59:59.000Z

    Wireless communication devices include a software-defined radio coupled to processing circuitry. The processing circuitry is configured to execute computer programming code. Storage media is coupled to the processing circuitry and includes computer programming code configured to cause the processing circuitry to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.

  8. Communication devices for network-hopping communications and methods of network-hopping communications

    DOE Patents [OSTI]

    Buttles, John W

    2013-04-23T23:59:59.000Z

    Wireless communication devices include a software-defined radio coupled to processing circuitry. The system controller is configured to execute computer programming code. Storage media is coupled to the system controller and includes computer programming code configured to cause the system controller to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.

  9. Including Blind Students in Computer Science Through Access to Graphs

    E-Print Network [OSTI]

    Young, R. Michael

    Including Blind Students in Computer Science Through Access to Graphs Suzanne Balik, Sean Mealin SKetching tool, GSK, to provide blind and sighted people with a means to create, examine, and share graphs (node-link diagrams) in real-time. GSK proved very effective for one blind computer science student

  10. Bayesian hierarchical reconstruction of protein profiles including a digestion model

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Bayesian hierarchical reconstruction of protein profiles including a digestion model Pierre to recover the protein biomarkers content in a robust way. We will focus on the digestion step since and each branch to a molecular processing such as digestion, ionisation and LC-MS separation

  11. Biomass Potentials from California Forest and Shrublands Including Fuel

    E-Print Network [OSTI]

    Biomass Potentials from California Forest and Shrublands Including Fuel Reduction Potentials-04-004 February 2005 Revised: October 2005 Arnold Schwarzenegger, Governor, State of California #12;Biomass Tiangco, CEC Bryan M. Jenkins, University of California #12;Biomass Potentials from California Forest

  12. Optimal Energy Management Strategy including Battery Health through Thermal

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Optimal Energy Management Strategy including Battery Health through Thermal Management for Hybrid: Energy management strategy, Plug-in hybrid electric vehicles, Li-ion battery aging, thermal management, Pontryagin's Minimum Principle. 1. INTRODUCTION The interest for energy management strategy (EMS) of Hybrid

  13. Area of cooperation includes: Joint research and development on

    E-Print Network [OSTI]

    Buyya, Rajkumar

    Technologies August 2, 2006: HCL Technologies Ltd (HCL), India's leading global IT services company, has signed projects that are using this technology currently such as BioGrid in Japan, National Grid Service in UKArea of cooperation includes: · Joint research and development on Grid computing technologies

  14. Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development

    E-Print Network [OSTI]

    Walter, M.Todd

    Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development A Report Engineering) W. VA #12;Energy Transitions: A Systems Approach August 2011 version Page 2 Energy Transitions sources globally, some very strong short-term drivers of energy transitions reflect rising concerns over

  15. 1 INTRODUCTION A typical flexible pavement system includes four

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    1 INTRODUCTION A typical flexible pavement system includes four distinct layers: asphalt concrete course in order to reduce costs or to minimize capil- lary action under the pavement. Figure 1: Cross-section of flexible pavement system (Muench 2006) Pavement distress may occur due to either traffic or environmental

  16. SAFETY AND HEALTH PROGRAM Including the Chemical Hygiene Plan

    E-Print Network [OSTI]

    Evans, Paul G.

    SAFETY AND HEALTH PROGRAM Including the Chemical Hygiene Plan Wisconsin Center for Applied, Technical Staff & Chemical Hygiene Officer kakupcho@wisc.edu 262-2982 Lab Facility Website http..........................................................................................................3 CHEMICAL HYGIENE PLAN III. Work-site Analysis and Hazard Identification 3.1 Hazardous Chemical

  17. HTS Conductor Design Issues Including Quench and Stability,

    E-Print Network [OSTI]

    HTS Conductor Design Issues Including Quench and Stability, AC Losses, and Fault Currents M. J objective and technical approach · The purpose of this collaborative R&D project is an investigation of HTS conductor design optimization with emphasis on stability and protection issues for YBCO wires and coils

  18. Free Energy Efficiency Kit includes CFL light bulbs,

    E-Print Network [OSTI]

    Rose, Annkatrin

    Free Energy Efficiency Kit Kit includes CFL light bulbs, spray foam, low-flow shower head, and more for discounted energy assessments. FREE HOME ENERGY EFFICIENCY SEMINAR N e w R i ver L i g ht & Pow e r a n d W! Building Science 101 Presentation BPI Certified Building Professionals will present home energy efficiency

  19. DO NOT INCLUDE: flatten cardboard staples, tape & envelope windows ok

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    / bottles Metal items other than cans/foil Napkins Paper towels Plastic bags Plastic films Plastic utensilsDO NOT INCLUDE: flatten cardboard staples, tape & envelope windows ok Aerosol cans Books Bottle, PDAs, inkjet cartridges, CFL bulbs (cushioned, sealed in plastic) computers, printers, printer

  20. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, N.V.; Broekaert, W.F.; Namhai Chua; Kush, A.

    1993-02-16T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1,018 nucleotides long and includes an open reading frame of 204 amino acids.

  1. Perhaps federal research grants can include infrastructure costs.

    E-Print Network [OSTI]

    Sur, Mriganka

    Perhaps federal research grants can include infrastructure costs. There are signs to find favour in China, a country beset by similar problems. The particular structure of Indian science and healthystart-uppackages. The government could contribute to these costs. 487 NATURE|Vol 436|28 July 2005

  2. Flexible network wireless transceiver and flexible network telemetry transceiver

    DOE Patents [OSTI]

    Brown, Kenneth D. (Grain Valley, MO)

    2008-08-05T23:59:59.000Z

    A transceiver for facilitating two-way wireless communication between a baseband application and other nodes in a wireless network, wherein the transceiver provides baseband communication networking and necessary configuration and control functions along with transmitter, receiver, and antenna functions to enable the wireless communication. More specifically, the transceiver provides a long-range wireless duplex communication node or channel between the baseband application, which is associated with a mobile or fixed space, air, water, or ground vehicle or other platform, and other nodes in the wireless network or grid. The transceiver broadly comprises a communication processor; a flexible telemetry transceiver including a receiver and a transmitter; a power conversion and regulation mechanism; a diplexer; and a phased array antenna system, wherein these various components and certain subcomponents thereof may be separately enclosed and distributable relative to the other components and subcomponents.

  3. High-Speed Real-Time Digital Emulation for Hardware-in-the-Loop Testing of Power Electronics: A New Paradigm in the Field of Electronic Design Automation (EDA) for Power Electronics Systems

    E-Print Network [OSTI]

    Kinsy, Michel A.

    This paper details the design and application of a new ultra-high speed real-time simulation for Hardware-in-the-Loop (HiL) testing and design of high-power power electronics systems. Our real-time hardware emulation for ...

  4. Review of Public Safety in Viewpoint of Complex Networks

    SciTech Connect (OSTI)

    Gai Chengcheng; Weng Wenguo; Yuan Hongyong [Center for Public Safety Research, Tsinghua university, Department of Engineering Physics, Tsinghua university (China)

    2010-05-21T23:59:59.000Z

    In this paper, a brief review of public safety in viewpoint of complex networks is presented. Public safety incidents are divided into four categories: natural disasters, industry accidents, public health and social security, in which the complex network approaches and theories are need. We review how the complex network methods was developed and used in the studies of the three kinds of public safety incidents. The typical public safety incidents studied by the complex network methods in this paper are introduced, including the natural disaster chains, blackouts on electric power grids and epidemic spreading. Finally, we look ahead to the application prospects of the complex network theory on public safety.

  5. Electrical Network Supervisor Status Report

    E-Print Network [OSTI]

    Poulsen, S

    2001-01-01T23:59:59.000Z

    During year 2000 CERN has installed the Electrical Network Supervisor (ENS) for the monitoring and control of the equipment of the electrical distribution network located in about 100 substations throughout the different sites. In the first phase the system has been installed in parallel with the original CERN-developed system and databases and mimic diagrams have been prepared to cover parts of the distribution network. The system has been integrated with the general ST supervision systems for alarms monitoring and measurement logging, and the data from the ENS are gradually being integrated. In the second phase an extension of the system has been tested to include a direct industrial interface with the electrical equipment without the need for the existing CERN equipment interfaces. During the 2000-2001 shutdown the supervision will be renovated in a number of zones to operate a complete industrial system covering all aspects of the supervision from equipment interfaces to end-user applications.

  6. A hardware investigation of robotic SPECT for functional and molecular imaging onboard radiation therapy systems

    SciTech Connect (OSTI)

    Yan, Susu, E-mail: susu.yan@duke.edu; Tough, MengHeng [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27710 (United States); Bowsher, James; Yin, Fang-Fang [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27710 and Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Cheng, Lin [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710 (United States)

    2014-11-01T23:59:59.000Z

    Purpose: To construct a robotic SPECT system and to demonstrate its capability to image a thorax phantom on a radiation therapy flat-top couch, as a step toward onboard functional and molecular imaging in radiation therapy. Methods: A robotic SPECT imaging system was constructed utilizing a gamma camera detector (Digirad 2020tc) and a robot (KUKA KR150 L110 robot). An imaging study was performed with a phantom (PET CT Phantom{sup TM}), which includes five spheres of 10, 13, 17, 22, and 28 mm diameters. The phantom was placed on a flat-top couch. SPECT projections were acquired either with a parallel-hole collimator or a single-pinhole collimator, both without background in the phantom and with background at 1/10th the sphere activity concentration. The imaging trajectories of parallel-hole and pinhole collimated detectors spanned 180° and 228°, respectively. The pinhole detector viewed an off-centered spherical common volume which encompassed the 28 and 22 mm spheres. The common volume for parallel-hole system was centered at the phantom which encompassed all five spheres in the phantom. The maneuverability of the robotic system was tested by navigating the detector to trace the phantom and flat-top table while avoiding collision and maintaining the closest possible proximity to the common volume. The robot base and tool coordinates were used for image reconstruction. Results: The robotic SPECT system was able to maneuver parallel-hole and pinhole collimated SPECT detectors in close proximity to the phantom, minimizing impact of the flat-top couch on detector radius of rotation. Without background, all five spheres were visible in the reconstructed parallel-hole image, while four spheres, all except the smallest one, were visible in the reconstructed pinhole image. With background, three spheres of 17, 22, and 28 mm diameters were readily observed with the parallel-hole imaging, and the targeted spheres (22 and 28 mm diameters) were readily observed in the pinhole region-of-interest imaging. Conclusions: Onboard SPECT could be achieved by a robot maneuvering a SPECT detector about patients in position for radiation therapy on a flat-top couch. The robot inherent coordinate frames could be an effective means to estimate detector pose for use in SPECT image reconstruction.

  7. Multi-processor including data flow accelerator module

    DOE Patents [OSTI]

    Davidson, George S. (Albuquerque, NM); Pierce, Paul E. (Albuquerque, NM)

    1990-01-01T23:59:59.000Z

    An accelerator module for a data flow computer includes an intelligent memory. The module is added to a multiprocessor arrangement and uses a shared tagged memory architecture in the data flow computer. The intelligent memory module assigns locations for holding data values in correspondence with arcs leading to a node in a data dependency graph. Each primitive computation is associated with a corresponding memory cell, including a number of slots for operands needed to execute a primitive computation, a primitive identifying pointer, and linking slots for distributing the result of the cell computation to other cells requiring that result as an operand. Circuitry is provided for utilizing tag bits to determine automatically when all operands required by a processor are available and for scheduling the primitive for execution in a queue. Each memory cell of the module may be associated with any of the primitives, and the particular primitive to be executed by the processor associated with the cell is identified by providing an index, such as the cell number for the primitive, to the primitive lookup table of starting addresses. The module thus serves to perform functions previously performed by a number of sections of data flow architectures and coexists with conventional shared memory therein. A multiprocessing system including the module operates in a hybrid mode, wherein the same processing modules are used to perform some processing in a sequential mode, under immediate control of an operating system, while performing other processing in a data flow mode.

  8. Conversion of geothermal waste to commercial products including silica

    DOE Patents [OSTI]

    Premuzic, Eugene T. (East Moriches, NY); Lin, Mow S. (Rocky Point, NY)

    2003-01-01T23:59:59.000Z

    A process for the treatment of geothermal residue includes contacting the pigmented amorphous silica-containing component with a depigmenting reagent one or more times to depigment the silica and produce a mixture containing depigmented amorphous silica and depigmenting reagent containing pigment material; separating the depigmented amorphous silica and from the depigmenting reagent to yield depigmented amorphous silica. Before or after the depigmenting contacting, the geothermal residue or depigmented silica can be treated with a metal solubilizing agent to produce another mixture containing pigmented or unpigmented amorphous silica-containing component and a solubilized metal-containing component; separating these components from each other to produce an amorphous silica product substantially devoid of metals and at least partially devoid of pigment. The amorphous silica product can be neutralized and thereafter dried at a temperature from about 25.degree. C. to 300.degree. C. The morphology of the silica product can be varied through the process conditions including sequence contacting steps, pH of depigmenting reagent, neutralization and drying conditions to tailor the amorphous silica for commercial use in products including filler for paint, paper, rubber and polymers, and chromatographic material.

  9. Neural Network Based Montioring and Control of Fluidized Bed.

    SciTech Connect (OSTI)

    Bodruzzaman, M.; Essawy, M.A.

    1996-04-01T23:59:59.000Z

    The goal of this project was to develop chaos analysis and neural network-based modeling techniques and apply them to the pressure-drop data obtained from the Fluid Bed Combustion (FBC) system (a small scale prototype model) located at the Federal Energy Technology Center (FETC)-Morgantown. The second goal was to develop neural network-based chaos control techniques and provide a suggestive prototype for possible real-time application to the FBC system. The experimental pressure data were collected from a cold FBC experimental set-up at the Morgantown Center. We have performed several analysis on these data in order to unveil their dynamical and chaotic characteristics. The phase-space attractors were constructed from the one dimensional time series data, using the time-delay embedding method, for both normal and abnormal conditions. Several identifying parameters were also computed from these attractors such as the correlation dimension, the Kolmogorov entropy, and the Lyapunov exponents. These chaotic attractor parameters can be used to discriminate between the normal and abnormal operating conditions of the FBC system. It was found that, the abnormal data has higher correlation dimension, larger Kolmogorov entropy and larger positive Lyapunov exponents as compared to the normal data. Chaotic system control using neural network based techniques were also investigated and compared to conventional chaotic system control techniques. Both types of chaotic system control techniques were applied to some typical chaotic systems such as the logistic, the Henon, and the Lorenz systems. A prototype model for real-time implementation of these techniques has been suggested to control the FBC system. These models can be implemented for real-time control in a next phase of the project after obtaining further measurements from the experimental model. After testing the control algorithms developed for the FBC model, the next step is to implement them on hardware and link them to the experimental system. In this report, the hardware implementation issues of the control algorithms are also discussed.

  10. Complete multiplatform networking integration in a petroleum research environment

    SciTech Connect (OSTI)

    Jefferson, L.L.; Brill, J.P. (Univ. of Tulsa, OK (US))

    1991-07-01T23:59:59.000Z

    The Tulsa U. Fluid Flow Projects (TUFFP) is an industry/university research consortium established in 1973 to investigate multiphase flow in pipes for the petroleum industry. Currently, TUFFP maintains three types of computing power: HP/Apollo UNIX-based workstations, Apple Macintoshes, and AT-class IBM PC's and compatibles. The PC's, and more recently the Macintoshes, are used for data acquisition in experimental research facilities. The data are then transferred to HP/Apollo workstations for analysis and future simulation. The results from the workstation analysis are then ported to the Macintosh system for further graphical analysis in the form of plots and for report generation. This paper describes the current TUFFP computer network is a state-of-the-art and user-friendly system. Users require no prior knowledge of networking protocol and can transfer files among many computers in the network. Researchers can then concentrate on their research without checking hardware connections and learning software communication commands. Moreover, the new network can accommodate growth and change as new needs are introduced and the user population increases.

  11. Effective Protocols for Mobile Communications and Networking

    SciTech Connect (OSTI)

    Espinoza, J.; Sholander, P.; Van Leeuwen, B,

    1998-12-01T23:59:59.000Z

    This report examines methods of mobile communications with an emphasis on mobile computing and wireless communications. Many of the advances in communications involve the use of Internet Protocol (IP), Asynchronous Transfer Mode (ATM), and ad hoc network protocols. However, many of the advances in these protocols have been focused on wired communications. Recently much focus has been directed at advancing communication technology in the area of mobile wireless networks. This report discusses various protocols used in mobile communications and proposes a number of extensions to existing protocols. A detailed discussion is also included on desirable protocol characteristics and evaluation criteria. In addition, the report includes a discussion on several network simulation tools that maybe used to evaluate network protocols.

  12. Network coding for robust wireless networks

    E-Print Network [OSTI]

    Kim, MinJi, Ph. D. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Wireless networks and communications promise to allow improved access to services and information, ubiquitous connectivity, and mobility. However, current wireless networks are not well-equipped to meet the high bandwidth ...

  13. Determination of the Operating Envelope for a Direct Fired Fuel Cell Turbine Hybrid Using Hardware Based Simulation

    SciTech Connect (OSTI)

    David Tucker; Eric Liese; Randall Gemmen

    2009-02-10T23:59:59.000Z

    The operating range of a direct fired solid oxide fuel cell gas turbine (SOFC/GT) hybrid with bypass control of cathode airflow was determined using a hardware-based simulation facility designed and built by the U.S. Department of Energy, National Energy Technology Laboratory (NETL). Three methods of cathode airflow management using bypass valves in a hybrid power system were evaluated over the maximum range of operation. The cathode air flow was varied independently over the full range of operation of each bypass valve. Each operating point was taken at a steady state condition and was matched to the thermal, pressure and flow output of a corresponding fuel cell operation condition. Turbine electric load was also varied so that the maximum range of fuel cell operation could be studied, and a preliminary operating map could be made. Results are presented to show operating envelopes in terms of cathode air flow, fuel cell and turbine load, and compressor surge margin to be substantial.

  14. The ATLAS FTK Auxiliary Card: A Highly Functional VME Rear Transition Module for a Hardware Track Finding Processing Unit

    E-Print Network [OSTI]

    Alison, John; The ATLAS collaboration; Bogdan, Mircea; Bryant, Patrick; Cheng, Yangyang; Krizka, Karol; Shochet, Mel; Tompkins, Lauren; Webster, Jordan S

    2014-01-01T23:59:59.000Z

    The ATLAS Fast TracKer is a hardware-based charged particle track finder for the High Level Trigger system of the ATLAS Experiment at the LHC. Using a multi-component system, it finds charged particle trajectories of 1 GeV/c and greater using data from the full ATLAS silicon tracking detectors at a rate of 100 kHz. Pattern recognition and preliminary track fitting are performed by VME Processing Units consisting of an Associative Memory Board containing custom associative memory chips for pattern recognition, and the Auxiliary Card (AUX), a powerful rear transition module which formats the data for pattern recognition and performs linearized fits on track candidates. We report on the design and testing of the AUX, which utilizes six FPGAs to process up to 32 Gbps of hit data, as well as fit the helical trajectory of one track candidate per nanosecond through a highly parallel track fitting architecture. Both the board and firmware design will be discussed, as well as the performance observed in tests at CERN ...

  15. Composite armor, armor system and vehicle including armor system

    DOE Patents [OSTI]

    Chu, Henry S.; Jones, Warren F.; Lacy, Jeffrey M.; Thinnes, Gary L.

    2013-01-01T23:59:59.000Z

    Composite armor panels are disclosed. Each panel comprises a plurality of functional layers comprising at least an outermost layer, an intermediate layer and a base layer. An armor system incorporating armor panels is also disclosed. Armor panels are mounted on carriages movably secured to adjacent rails of a rail system. Each panel may be moved on its associated rail and into partially overlapping relationship with another panel on an adjacent rail for protection against incoming ordnance from various directions. The rail system may be configured as at least a part of a ring, and be disposed about a hatch on a vehicle. Vehicles including an armor system are also disclosed.

  16. cDNA encoding a polypeptide including a hevein sequence

    DOE Patents [OSTI]

    Raikhel, Natasha V. (Okemos, MI); Broekaert, Willem F. (Dilbeek, BE); Chua, Nam-Hai (Scarsdale, NY); Kush, Anil (New York, NY)

    1993-02-16T23:59:59.000Z

    A cDNA clone (HEV1) encoding hevein was isolated via polymerase chain reaction (PCR) using mixed oligonucleotides corresponding to two regions of hevein as primers and a Hevea brasiliensis latex cDNA library as a template. HEV1 is 1018 nucleotides long and includes an open reading frame of 204 amino acids. The deduced amino acid sequence contains a pu GOVERNMENT RIGHTS This application was funded under Department of Energy Contract DE-AC02-76ER01338. The U.S. Government has certain rights under this application and any patent issuing thereon.

  17. Composite material including nanocrystals and methods of making

    DOE Patents [OSTI]

    Bawendi, Moungi G.; Sundar, Vikram C.

    2010-04-06T23:59:59.000Z

    Temperature-sensing compositions can include an inorganic material, such as a semiconductor nanocrystal. The nanocrystal can be a dependable and accurate indicator of temperature. The intensity of emission of the nanocrystal varies with temperature and can be highly sensitive to surface temperature. The nanocrystals can be processed with a binder to form a matrix, which can be varied by altering the chemical nature of the surface of the nanocrystal. A nanocrystal with a compatibilizing outer layer can be incorporated into a coating formulation and retain its temperature sensitive emissive properties.

  18. A coke oven model including thermal decomposition kinetics of tar

    SciTech Connect (OSTI)

    Munekane, Fuminori; Yamaguchi, Yukio [Mitsubishi Chemical Corp., Yokohama (Japan); Tanioka, Seiichi [Mitsubishi Chemical Corp., Sakaide (Japan)

    1997-12-31T23:59:59.000Z

    A new one-dimensional coke oven model has been developed for simulating the amount and the characteristics of by-products such as tar and gas as well as coke. This model consists of both heat transfer and chemical kinetics including thermal decomposition of coal and tar. The chemical kinetics constants are obtained by estimation based on the results of experiments conducted to investigate the thermal decomposition of both coal and tar. The calculation results using the new model are in good agreement with experimental ones.

  19. Numerical evaluation of propeller noise, including non-linear effects

    E-Print Network [OSTI]

    White, Terence Alan

    1985-01-01T23:59:59.000Z

    University Chairman of Advisor y Commitee: Dr. Kenneth Korkan Using the transonic flow field(s) generated by the NASPROP-E computer code for an eight blade SR3-series propeller, a method is investigated to calculate the total noise values and frequency... in three dimensions, and the influence of the damping on the calculated noise values is investigated. Since the flow field includes the wave systems near the blade surface, the quadr upole noise sour ce term is accounted for as are the monopole...

  20. What To Include In The Whistleblower Complaint? | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved: 5-13-14Russian Nuclear Warheads ArrivesAdministration To Include In

  1. Multilevel method for modeling large-scale networks.

    SciTech Connect (OSTI)

    Safro, I. M. (Mathematics and Computer Science)

    2012-02-24T23:59:59.000Z

    Understanding the behavior of real complex networks is of great theoretical and practical significance. It includes developing accurate artificial models whose topological properties are similar to the real networks, generating the artificial networks at different scales under special conditions, investigating a network dynamics, reconstructing missing data, predicting network response, detecting anomalies and other tasks. Network generation, reconstruction, and prediction of its future topology are central issues of this field. In this project, we address the questions related to the understanding of the network modeling, investigating its structure and properties, and generating artificial networks. Most of the modern network generation methods are based either on various random graph models (reinforced by a set of properties such as power law distribution of node degrees, graph diameter, and number of triangles) or on the principle of replicating an existing model with elements of randomization such as R-MAT generator and Kronecker product modeling. Hierarchical models operate at different levels of network hierarchy but with the same finest elements of the network. However, in many cases the methods that include randomization and replication elements on the finest relationships between network nodes and modeling that addresses the problem of preserving a set of simplified properties do not fit accurately enough the real networks. Among the unsatisfactory features are numerically inadequate results, non-stability of algorithms on real (artificial) data, that have been tested on artificial (real) data, and incorrect behavior at different scales. One reason is that randomization and replication of existing structures can create conflicts between fine and coarse scales of the real network geometry. Moreover, the randomization and satisfying of some attribute at the same time can abolish those topological attributes that have been undefined or hidden from researchers. We propose to develop multilevel methods to model complex networks. The key point of the proposed strategy is that it will help to preserve part of the unknown structural attributes by guaranteeing the similar behavior of the real and artificial model on different scales.

  2. Downhole drilling network using burst modulation techniques

    DOE Patents [OSTI]

    Hall; David R. (Provo, UT), Fox; Joe (Spanish Fork, UT)

    2007-04-03T23:59:59.000Z

    A downhole drilling system is disclosed in one aspect of the present invention as including a drill string and a transmission line integrated into the drill string. Multiple network nodes are installed at selected intervals along the drill string and are adapted to communicate with one another through the transmission line. In order to efficiently allocate the available bandwidth, the network nodes are configured to use any of numerous burst modulation techniques to transmit data.

  3. Network sampling and classification: An investigation of network model representations

    E-Print Network [OSTI]

    Needleman, Daniel

    only one or two connectivity patterns of an observed network--such as degree distribution, or diameterNetwork sampling and classification: An investigation of network model representations Edoardo M: Connectivity pattern Network type Network metrics Network sampling Network classification Methods

  4. Network Maps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparency VisitSilverNepheline crystallization inNetCDF Network

  5. Community Assessment Tool for Public Health Emergencies Including Pandemic Influenza

    SciTech Connect (OSTI)

    ORAU's Oak Ridge Institute for Science Education (HCTT-CHE)

    2011-04-14T23:59:59.000Z

    The Community Assessment Tool (CAT) for Public Health Emergencies Including Pandemic Influenza (hereafter referred to as the CAT) was developed as a result of feedback received from several communities. These communities participated in workshops focused on influenza pandemic planning and response. The 2008 through 2011 workshops were sponsored by the Centers for Disease Control and Prevention (CDC). Feedback during those workshops indicated the need for a tool that a community can use to assess its readiness for a disaster - readiness from a total healthcare perspective, not just hospitals, but the whole healthcare system. The CAT intends to do just that - help strengthen existing preparedness plans by allowing the healthcare system and other agencies to work together during an influenza pandemic. It helps reveal each core agency partners (sectors) capabilities and resources, and highlights cases of the same vendors being used for resource supplies (e.g., personal protective equipment [PPE] and oxygen) by the partners (e.g., public health departments, clinics, or hospitals). The CAT also addresses gaps in the community's capabilities or potential shortages in resources. This tool has been reviewed by a variety of key subject matter experts from federal, state, and local agencies and organizations. It also has been piloted with various communities that consist of different population sizes, to include large urban to small rural communities.

  6. Solving The High Energy Evolution Equation Including Running Coupling Corrections

    E-Print Network [OSTI]

    Javier L. Albacete; Yuri V. Kovchegov

    2007-06-22T23:59:59.000Z

    We study the solution of the nonlinear BK evolution equation with the recently calculated running coupling corrections [hep-ph/0609105, hep-ph/0609090]. Performing a numerical solution we confirm the earlier result of [hep-ph/0408216] that the high energy evolution with the running coupling leads to a universal scaling behavior for the dipole scattering amplitude. The running coupling corrections calculated recently significantly change the shape of the scaling function as compared to the fixed coupling case leading to a considerable increase in the anomalous dimension and to a slow-down of the evolution with rapidity. The difference between the two recent calculations is due to an extra contribution to the evolution kernel, referred to as the subtraction term, which arises when running coupling corrections are included. These subtraction terms were neglected in both recent calculations. We evaluate numerically the subtraction terms for both calculations, and demonstrate that when the subtraction terms are added back to the evolution kernels obtained in the two works the resulting dipole amplitudes agree with each other! We then use the complete running coupling kernel including the subtraction term to find the numerical solution of the resulting full non-linear evolution equation with the running coupling corrections. Again the scaling regime is recovered at very large rapidity.

  7. Cogeneration handbook for the petroleum refining industry. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1984-02-01T23:59:59.000Z

    This Handbook deals only with industrial cogeneration, that is, simultaneous production of both heat and electricity at the industrial plant site. The cogenerator has the option of either selling all cogenerated power to the utility while simultaneously purchasing power to satisfy his plant demand, or directly supplying the plant demand with cogenerated power, thus displacing utility-supplied power. This Handbook provides the refinery plant manager or company energy coordinator with a framework for making a preliminary assessment of the feasibility and viability of cogeneration at a particular plant. The handbook is intended to provide an understanding of the potential of several standardized cogeneration systems, as well as their limitations. However, because the decision to cogenerate is very site specific, the handbook cannot provide all of the answers. It does attempt, however, to bring to light the major issues that should be addressed in the decision-making process. The decision of whether to cogenerate involves several considerations, including technical, economic, environmental, legal, and regulatory issues. Each of these issues is addressed separately in this handbook. In addition, a chapter is included on preparing a three-phase work statement, which is needed to guide the design of a cogeneration system. 39 figures, 37 tables.

  8. Biological and Environmental Research Network Requirements

    SciTech Connect (OSTI)

    Balaji, V. [Princeton Univ., NJ (United States). Earth Science Grid Federation (ESGF); Boden, Tom [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Cowley, Dave [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Dart, Eli [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). ESNet; Dattoria, Vince [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). ESNet; Desai, Narayan [Argonne National Lab. (ANL), Argonne, IL (United States); Egan, Rob [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Foster, Ian [Argonne National Lab. (ANL), Argonne, IL (United States); Goldstone, Robin [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Gregurick, Susan [U.S. Dept. of Energy, Washington, DC (United States). Biological Systems Science Division; Houghton, John [U.S. Dept. of Energy, Washington, DC (United States). Biological and Environmental Research (BER) Program; Izaurralde, Cesar [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Johnston, Bill [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). ESNet; Joseph, Renu [U.S. Dept. of Energy, Washington, DC (United States). Climate and Environmental Sciences Division; Kleese-van Dam, Kerstin [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Lipton, Mary [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Monga, Inder [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). ESNet; Pritchard, Matt [British Atmospheric Data Centre (BADC), Oxon (United Kingdom); Rotman, Lauren [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). ESNet; Strand, Gary [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Stuart, Cory [Argonne National Lab. (ANL), Argonne, IL (United States); Tatusova, Tatiana [National Inst. of Health (NIH), Bethesda, MD (United States); Tierney, Brian [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). ESNet; Thomas, Brian [Univ. of California, Berkeley, CA (United States); Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Zurawski, Jason [Internet2, Washington, DC (United States)

    2013-09-01T23:59:59.000Z

    The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the U.S. Department of Energy (DOE) Office of Science (SC), the single largest supporter of basic research in the physical sciences in the United States. In support of SC programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet be a highly successful enabler of scientific discovery for over 25 years. In November 2012, ESnet and the Office of Biological and Environmental Research (BER) of the DOE SC organized a review to characterize the networking requirements of the programs funded by the BER program office. Several key findings resulted from the review. Among them: 1) The scale of data sets available to science collaborations continues to increase exponentially. This has broad impact, both on the network and on the computational and storage systems connected to the network. 2) Many science collaborations require assistance to cope with the systems and network engineering challenges inherent in managing the rapid growth in data scale. 3) Several science domains operate distributed facilities that rely on high-performance networking for success. Key examples illustrated in this report include the Earth System Grid Federation (ESGF) and the Systems Biology Knowledgebase (KBase). This report expands on these points, and addresses others as well. The report contains a findings section as well as the text of the case studies discussed at the review.

  9. Calculating a checksum with inactive networking components in a computing system

    DOE Patents [OSTI]

    Aho, Michael E; Chen, Dong; Eisley, Noel A; Gooding, Thomas M; Heidelberger, Philip; Tauferner, Andrew T

    2014-12-16T23:59:59.000Z

    Calculating a checksum utilizing inactive networking components in a computing system, including: identifying, by a checksum distribution manager, an inactive networking component, wherein the inactive networking component includes a checksum calculation engine for computing a checksum; sending, to the inactive networking component by the checksum distribution manager, metadata describing a block of data to be transmitted by an active networking component; calculating, by the inactive networking component, a checksum for the block of data; transmitting, to the checksum distribution manager from the inactive networking component, the checksum for the block of data; and sending, by the active networking component, a data communications message that includes the block of data and the checksum for the block of data.

  10. Pulse transmission transmitter including a higher order time derivate filter

    DOE Patents [OSTI]

    Dress Jr., William B.; Smith, Stephen F.

    2003-09-23T23:59:59.000Z

    Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission transmitter includes: a clock; a pseudorandom polynomial generator coupled to the clock, the pseudorandom polynomial generator having a polynomial load input; an exclusive-OR gate coupled to the pseudorandom polynomial generator, the exclusive-OR gate having a serial data input; a programmable delay circuit coupled to both the clock and the exclusive-OR gate; a pulse generator coupled to the programmable delay circuit; and a higher order time derivative filter coupled to the pulse generator. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.

  11. Hydraulic engine valve actuation system including independent feedback control

    DOE Patents [OSTI]

    Marriott, Craig D

    2013-06-04T23:59:59.000Z

    A hydraulic valve actuation assembly may include a housing, a piston, a supply control valve, a closing control valve, and an opening control valve. The housing may define a first fluid chamber, a second fluid chamber, and a third fluid chamber. The piston may be axially secured to an engine valve and located within the first, second and third fluid chambers. The supply control valve may control a hydraulic fluid supply to the piston. The closing control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the second fluid chamber to the supply control valve. The opening control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the supply control valve to the second fluid chamber.

  12. Fuel cell repeater unit including frame and separator plate

    DOE Patents [OSTI]

    Yamanis, Jean; Hawkes, Justin R; Chiapetta, Jr., Louis; Bird, Connie E; Sun, Ellen Y; Croteau, Paul F

    2013-11-05T23:59:59.000Z

    An example fuel cell repeater includes a separator plate and a frame establishing at least a portion of a flow path that is operative to communicate fuel to or from at least one fuel cell held by the frame relative to the separator plate. The flow path has a perimeter and any fuel within the perimeter flow across the at least one fuel cell in a first direction. The separator plate, the frame, or both establish at least one conduit positioned outside the flow path perimeter. The conduit is outside of the flow path perimeter and is configured to direct flow in a second, different direction. The conduit is fluidly coupled with the flow path.

  13. Copper laser modulator driving assembly including a magnetic compression laser

    DOE Patents [OSTI]

    Cook, Edward G. (Livermore, CA); Birx, Daniel L. (Oakley, CA); Ball, Don G. (Livermore, CA)

    1994-01-01T23:59:59.000Z

    A laser modulator (10) having a low voltage assembly (12) with a plurality of low voltage modules (14) with first stage magnetic compression circuits (20) and magnetic assist inductors (28) with a common core (91), such that timing of the first stage magnetic switches (30b) is thereby synchronized. A bipolar second stage of magnetic compression (42) is coupled to the low voltage modules (14) through a bipolar pulse transformer (36) and a third stage of magnetic compression (44) is directly coupled to the second stage of magnetic compression (42). The low voltage assembly (12) includes pressurized boxes (117) for improving voltage standoff between the primary winding assemblies (34) and secondary winding (40) contained therein.

  14. Electra-optical device including a nitrogen containing electrolyte

    DOE Patents [OSTI]

    Bates, John B. (Oak Ridge, TN); Dudney, Nancy J. (Knoxville, TN); Gruzalski, Greg R. (Oak Ridge, TN); Luck, Christopher F. (Knoxville, TN)

    1995-01-01T23:59:59.000Z

    Described is a thin-film battery, especially a thin-film microbattery, and a method for making same having application as a backup or primary integrated power source for electronic devices. The battery includes a novel electrolyte which is electrochemically stable and does not react with the lithium anode and a novel vanadium oxide cathode Configured as a microbattery, the battery can be fabricated directly onto a semiconductor chip, onto the semiconductor die or onto any portion of the chip carrier. The battery can be fabricated to any specified size or shape to meet the requirements of a particular application. The battery is fabricated of solid state materials and is capable of operation between -15.degree. C. and 150.degree. C.

  15. Electra-optical device including a nitrogen containing electrolyte

    DOE Patents [OSTI]

    Bates, J.B.; Dudney, N.J.; Gruzalski, G.R.; Luck, C.F.

    1995-10-03T23:59:59.000Z

    Described is a thin-film battery, especially a thin-film microbattery, and a method for making same having application as a backup or primary integrated power source for electronic devices. The battery includes a novel electrolyte which is electrochemically stable and does not react with the lithium anode and a novel vanadium oxide cathode. Configured as a microbattery, the battery can be fabricated directly onto a semiconductor chip, onto the semiconductor die or onto any portion of the chip carrier. The battery can be fabricated to any specified size or shape to meet the requirements of a particular application. The battery is fabricated of solid state materials and is capable of operation between {minus}15 C and 150 C.

  16. Including stereoscopic information in the reconstruction of coronal magnetic fields

    E-Print Network [OSTI]

    T. Wiegelmann; T. Neukirch

    2008-01-23T23:59:59.000Z

    We present a method to include stereoscopic information about the three dimensional structure of flux tubes into the reconstruction of the coronal magnetic field. Due to the low plasma beta in the corona we can assume a force free magnetic field, with the current density parallel to the magnetic field lines. Here we use linear force free fields for simplicity. The method uses the line of sight magnetic field on the photosphere as observational input. The value of $\\alpha$ is determined iteratively by comparing the reconstructed magnetic field with the observed structures. The final configuration is the optimal linear force solution constrained by both the photospheric magnetogram and the observed plasma structures. As an example we apply our method to SOHO MDI/EIT data of an active region. In the future it is planned to apply the method to analyse data from the SECCHI instrument aboard the STEREO mission.

  17. Improving Planck calibration by including frequency-dependent relativistic corrections

    E-Print Network [OSTI]

    Quartin, Miguel

    2015-01-01T23:59:59.000Z

    The Planck satellite detectors are calibrated in the 2015 release using the "orbital dipole", which is the time-dependent dipole generated by the Doppler effect due to the motion of the satellite around the Sun. Such an effect has also relativistic time-dependent corrections of relative magnitude 10^(-3), due to coupling with the "solar dipole" (the motion of the Sun compared to the CMB rest frame), which are included in the data calibration by the Planck collaboration. We point out that such corrections are subject to a frequency-dependent multiplicative factor. This factor differs from unity especially at the highest frequencies, relevant for the HFI instrument. Since currently Planck calibration errors are dominated by systematics, to the point that polarization data is currently unreliable at large scales, such a correction can in principle be highly relevant for future data releases.

  18. Protoplanetary disks including radiative feedback from accreting planets

    E-Print Network [OSTI]

    Montesinos, Matias; Perez, Sebastian; Baruteau, Clement; Casassus, Simon

    2015-01-01T23:59:59.000Z

    While recent observational progress is converging on the detection of compact regions of thermal emission due to embedded protoplanets, further theoretical predictions are needed to understand the response of a protoplanetary disk to the planet formation radiative feedback. This is particularly important to make predictions for the observability of circumplanetary regions. In this work we use 2D hydrodynamical simulations to examine the evolution of a viscous protoplanetary disk in which a luminous Jupiter-mass planet is embedded. We use an energy equation which includes the radiative heating of the planet as an additional mechanism for planet formation feedback. Several models are computed for planet luminosities ranging from $10^{-5}$ to $10^{-3}$ Solar luminosities. We find that the planet radiative feedback enhances the disk's accretion rate at the planet's orbital radius, producing a hotter and more luminous environement around the planet, independently of the prescription used to model the disk's turbul...

  19. Actuator assembly including a single axis of rotation locking member

    DOE Patents [OSTI]

    Quitmeyer, James N.; Benson, Dwayne M.; Geck, Kellan P.

    2009-12-08T23:59:59.000Z

    An actuator assembly including an actuator housing assembly and a single axis of rotation locking member fixedly attached to a portion of the actuator housing assembly and an external mounting structure. The single axis of rotation locking member restricting rotational movement of the actuator housing assembly about at least one axis. The single axis of rotation locking member is coupled at a first end to the actuator housing assembly about a Y axis and at a 90.degree. angle to an X and Z axis providing rotation of the actuator housing assembly about the Y axis. The single axis of rotation locking member is coupled at a second end to a mounting structure, and more particularly a mounting pin, about an X axis and at a 90.degree. angle to a Y and Z axis providing rotation of the actuator housing assembly about the X axis. The actuator assembly is thereby restricted from rotation about the Z axis.

  20. A Case for Including Transactions in OpenMP

    SciTech Connect (OSTI)

    Wong, M; Bihari, B L; de Supinski, B R; Wu, P; Michael, M; Liu, Y; Chen, W

    2010-01-25T23:59:59.000Z

    Transactional Memory (TM) has received significant attention recently as a mechanism to reduce the complexity of shared memory programming. We explore the potential of TM to improve OpenMP applications. We combine a software TM (STM) system to support transactions with an OpenMP implementation to start thread teams and provide task and loop-level parallelization. We apply this system to two application scenarios that reflect realistic TM use cases. Our results with this system demonstrate that even with the relatively high overheads of STM, transactions can outperform OpenMP critical sections by 10%. Overall, our study demonstrates that extending OpenMP to include transactions would ease programming effort while allowing improved performance.