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Sample records for refueling network cxs

  1. Refueling Stations | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Refueling Stations Jump to: navigation, search TODO: Add description List of Refueling Stations Incentives Retrieved from "http:en.openei.orgwindex.php?titleRefuelingStations...

  2. Insights from Hydrogen Refueling Station Manufacturing Competitiveness Analysis

    Energy.gov [DOE]

    NREL is collaborating with Great Lakes Wind Network on comprehensive hydrogen refueling stations manufacturing competitiveness and supply chain analyses. This presentation to the 2015 Fuel Cell...

  3. Reactor refueling machine simulator

    SciTech Connect (OSTI)

    Rohosky, T.L.; Swidwa, K.J.

    1987-10-13

    This patent describes in combination: a nuclear reactor; a refueling machine having a bridge, trolley and hoist each driven by a separate motor having feedback means for generating a feedback signal indicative of movement thereof. The motors are operable to position the refueling machine over the nuclear reactor for refueling the same. The refueling machine also has a removable control console including means for selectively generating separate motor signals for operating the bridge, trolley and hoist motors and for processing the feedback signals to generate an indication of the positions thereof, separate output leads connecting each of the motor signals to the respective refueling machine motor, and separate input leads for connecting each of the feedback means to the console; and a portable simulator unit comprising: a single simulator motor; a single simulator feedback signal generator connected to the simulator motor for generating a simulator feedback signal in response to operation of the simulator motor; means for selectively connecting the output leads of the console to the simulator unit in place of the refueling machine motors, and for connecting the console input leads to the simulator unit in place of the refueling machine motor feedback means; and means for driving the single simulator motor in response to any of the bridge, trolley or hoist motor signals generated by the console and means for applying the simulator feedback signal to the console input lead associated with the motor signal being generated by the control console.

  4. Webinar: Hydrogen Refueling Protocols | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Refueling Protocols Webinar: Hydrogen Refueling Protocols Below is the text version of the webinar titled "Hydrogen Refueling Protocols," originally presented on February 22, 2013. ...

  5. Rapidly refuelable fuel cell

    DOE Patents [OSTI]

    Joy, R.W.

    1982-09-20

    A rapidly refuelable dual cell of an electrochemical type is described wherein a single anode cooperates with two cathodes and wherein the anode has a fixed position and the cathodes are urged toward opposite faces of the anodes at constant and uniform force. The associated cathodes are automatically retractable to permit the consumed anode remains to be removed from the housing and a new anode inserted between the two cathodes.

  6. Rapidly refuelable fuel cell

    DOE Patents [OSTI]

    Joy, Richard W. (Santa Clara, CA)

    1985-01-01

    A rapidly refuelable dual cell of an electrochemical type wherein a single anode cooperates with two cathodes and wherein the anode has a fixed position and the cathodes are urged toward opposite faces of the anodes at constant and uniform force. The associated cathodes are automatically retractable to permit the consumed anode remains to be removed from the housing and a new anode inserted between the two cathodes.

  7. Reactor refueling containment system

    DOE Patents [OSTI]

    Gillett, J.E.; Meuschke, R.E.

    1995-05-02

    A method of refueling a nuclear reactor is disclosed whereby the drive mechanism is disengaged and removed by activating a jacking mechanism that raises the closure head. The area between the barrier plate and closure head is exhausted through the closure head penetrations. The closure head, upper drive mechanism, and bellows seal are lifted away and transported to a safe area. The barrier plate acts as the primary boundary and each drive and control rod penetration has an elastomer seal preventing excessive tritium gases from escaping. The individual instrumentation plugs are disengaged allowing the corresponding fuel assembly to be sealed and replaced. 2 figs.

  8. Reactor refueling containment system

    DOE Patents [OSTI]

    Gillett, James E.; Meuschke, Robert E.

    1995-01-01

    A method of refueling a nuclear reactor whereby the drive mechanism is disengaged and removed by activating a jacking mechanism that raises the closure head. The area between the barrier plate and closure head is exhausted through the closure head penetrations. The closure head, upper drive mechanism, and bellows seal are lifted away and transported to a safe area. The barrier plate acts as the primary boundary and each drive and control rod penetration has an elastomer seal preventing excessive tritium gases from escaping. The individual instrumentation plugs are disengaged allowing the corresponding fuel assembly to be sealed and replaced.

  9. LNG to CNG refueling stations

    SciTech Connect (OSTI)

    Branson, J.D.

    1995-12-31

    While the fleet operator is concerned about the environment, he or she is going to make the choice based primarily on economics. Which fuel provides the lowest total operating cost? The calculation of this costing must include the price-per-gallon of the fuel delivered, as well as the tangible and intangible components of fuel delivery, such as downtime for vehicles during the refueling process, idle time for drivers during refueling, emissions costings resulting from compressor oil blow-by, inclusion of non-combustible constituents in the CNG, and energy consumption during the refueling process. Also, the upfront capital requirement of similar delivery capabilities must be compared. The use of LNG as the base resource for the delivered CNG, in conjunction with the utilization of a fully temperature-compressed LNG/CNG refueling system, eliminates many of the perceived shortfalls of CNG. An LNG/CNG refueling center designed to match the capabilities of the compressor-based station will have approximately the same initial capital requirement. However, because it derives its CNG sales product from the {minus}260 F LNG base product, thus availing itself of the natural physical properties of the cryogenic product, all other economic elements of the system favor the LNG/CNG product.

  10. Method and system for vehicle refueling

    DOE Patents [OSTI]

    Surnilla, Gopichandra; Leone, Thomas G; Prasad, Krishnaswamy Venkatesh; Argarwal, Apoorv; Hinds, Brett Stanley

    2012-11-20

    Methods and systems are provided for facilitating refueling operations in vehicles operating with multiple fuels. A vehicle operator may be assisted in refueling the multiple fuel tanks of the vehicle by being provided one or more refueling profiles that take into account the vehicle's future trip plans, the predicted environmental conditions along a planned route, and the operator's preferences.

  11. Method and system for vehicle refueling

    DOE Patents [OSTI]

    Surnilla, Gopichandra; Leone, Thomas G; Prasad, Krishnaswamy Venkatesh; Agarwal, Apoorv; Hinds, Brett Stanley

    2014-06-10

    Methods and systems are provided for facilitating refueling operations in vehicles operating with multiple fuels. A vehicle operator may be assisted in refueling the multiple fuel tanks of the vehicle by being provided one or more refueling profiles that take into account the vehicle's future trip plans, the predicted environmental conditions along a planned route, and the operator's preferences.

  12. Alternative Transportation Refueling Infrastructure in the U...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lack of adequate refueling infrastructure is a major barrier to the success of alternative motor fuels. A transition from fossil petroleum to alternative, low-carbon transportation ...

  13. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    from the DOE sponsored Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen workshop to understand how lessons from past experiences can...

  14. November 10, 2004: First hydrogen refueling station opens in...

    Energy Savers

    0, 2004: First hydrogen refueling station opens in Washington, DC. November 10, 2004: First hydrogen refueling station opens in Washington, DC. November 10, 2004: First hydrogen ...

  15. Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression This presentation by Matther Weaver of Pdc ...

  16. Insights from Hydrogen Refueling Station Manufacturing Competitiveness Analysis

    SciTech Connect (OSTI)

    Mayyas, Ahmad

    2015-12-18

    In work for the Clean Energy Manufacturing Analysis Center (CEMAC), NREL is currently collaborating with Great Lakes Wind Network in conducting a comprehensive hydrogen refueling stations manufacturing competitiveness and supply chain analyses. In this project, CEMAC will be looking at several metrics that will facilitate understanding of the interactions between and within the HRS supply chain, such metrics include innovation potential, intellectual properties, learning curves, related industries and clustering, existing supply chains, ease of doing business, and regulations and safety. This presentation to Fuel Cell Seminar and Energy Exposition 2015 highlights initial findings from CEMAC's analysis.

  17. Fact #816: February 10, 2014 Natural Gas Refueling Stations Grow...

    Energy.gov (indexed) [DOE]

    In 2003 there were 1,097 natural gas refueling stations nationwide. By 2013, that number increased by about 25% to a total of 1,374 natural gas refueling stations. In 2003, there ...

  18. Renewable Fuels and Lubricants (ReFUEL) Laboratory

    SciTech Connect (OSTI)

    Not Available

    2004-08-01

    Fact sheet describing NREL's Renewable Fuels and Lubricants Laboratory (ReFUEL). ReFUEL is a world-class research and testing facility dedicated to future fuels and advanced heavy-duty vehicle research, located in Denver, Colorado.

  19. Lessons and Challenges for Early Hydrogen Refueling Infrastructure

    Energy.gov [DOE]

    Presented at Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen Conference, April 2-3, 2008, Sacramento, California

  20. A Closer Look at Hydrogen Refueling | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    A Closer Look at Hydrogen Refueling A Closer Look at Hydrogen Refueling June 8, 2016 - 9:50am Addthis A hydrogen fueling station in San Francisco. | Photo courtesy of the California Fuel Cell Partnership A hydrogen fueling station in San Francisco. | Photo courtesy of the California Fuel Cell Partnership A hydrogen refueling dispenser locked onto a fuel cell electric vehicle. | Photo courtesy of National Renewable Energy Laboratory A hydrogen refueling dispenser locked onto a fuel cell electric

  1. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen

    Energy.gov [DOE]

    Presented at Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen Conference, April 2-3, 2008, Sacramento, California

  2. List of Refueling Stations Incentives | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Renewable Fuel Vehicles Other Alternative Fuel Vehicles Refueling Stations Ethanol Methanol Biodiesel No Alternative Vehicle Conversion Credits - Corporate (Louisiana) Corporate...

  3. Lessons and Challenges for Early Hydrogen Refueling Infrastructure

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - Ethanol - Methanol - Natural Gas - Electric Vehicles - Hydrogen - ... not always appropriate locations for public refueling stations - Fleet operators are relatively ...

  4. Refueling machine with relative positioning capability

    DOE Patents [OSTI]

    Challberg, Roy Clifford; Jones, Cecil Roy

    1998-01-01

    A refueling machine having relative positioning capability for refueling a nuclear reactor. The refueling machine includes a pair of articulated arms mounted on a refueling bridge. Each arm supports a respective telescoping mast. Each telescoping mast is designed to flex laterally in response to application of a lateral thrust on the end of the mast. A pendant mounted on the end of the mast carries an air-actuated grapple, television cameras, ultrasonic transducers and waterjet thrusters. The ultrasonic transducers are used to detect the gross position of the grapple relative to the bail of a nuclear fuel assembly in the fuel core. The television cameras acquire an image of the bail which is compared to a pre-stored image in computer memory. The pendant can be rotated until the television image and the pre-stored image match within a predetermined tolerance. Similarly, the waterjet thrusters can be used to apply lateral thrust to the end of the flexible mast to place the grapple in a fine position relative to the bail as a function of the discrepancy between the television and pre-stored images.

  5. Refueling machine with relative positioning capability

    DOE Patents [OSTI]

    Challberg, R.C.; Jones, C.R.

    1998-12-15

    A refueling machine is disclosed having relative positioning capability for refueling a nuclear reactor. The refueling machine includes a pair of articulated arms mounted on a refueling bridge. Each arm supports a respective telescoping mast. Each telescoping mast is designed to flex laterally in response to application of a lateral thrust on the end of the mast. A pendant mounted on the end of the mast carries an air-actuated grapple, television cameras, ultrasonic transducers and waterjet thrusters. The ultrasonic transducers are used to detect the gross position of the grapple relative to the bail of a nuclear fuel assembly in the fuel core. The television cameras acquire an image of the bail which is compared to a pre-stored image in computer memory. The pendant can be rotated until the television image and the pre-stored image match within a predetermined tolerance. Similarly, the waterjet thrusters can be used to apply lateral thrust to the end of the flexible mast to place the grapple in a fine position relative to the bail as a function of the discrepancy between the television and pre-stored images. 11 figs.

  6. AHTR Refueling Systems and Process Description

    SciTech Connect (OSTI)

    Varma, V.K.; Holcomb, D.E.; Bradley, E.C.; Zaharia, N.M.; Cooper, E.J.

    2012-07-15

    The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt–cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy’s Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published [1], and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, however, does include a description of the materials envisioned for the various components and the instrumentation necessary to control the refueling process. The report begins with an overview of the refueling strategy. Next a mechanical description of the AHTR fuel assemblies and core is provided. The reactor vessel upper assemblies are then described. Following this the refueling path structures and the refueling mechanisms and components are described. The sequence of operations necessary to fuel and defuel the reactor is then discussed. The report concludes with a discussion of the

  7. AHTR Refueling Systems and Process Description

    SciTech Connect (OSTI)

    Varma, Venugopal Koikal; Holcomb, David Eugene; Bradley, Eric Craig; Zaharia, Nathaniel M; Cooper, Eliott J

    2012-07-01

    The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt-cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy's Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, however, does include a description of the materials envisioned for the various components and the instrumentation necessary to control the refueling process. The report begins with an overview of the refueling strategy. Next a mechanical description of the AHTR fuel assemblies and core is provided. The reactor vessel upper assemblies are then described. Following this the refueling path structures and the refueling mechanisms and components are described. The sequence of operations necessary to fuel and defuel the reactor is then discussed. The report concludes with a discussion of the levels of

  8. Lessons and Challenges for Early Hydrogen Refueling Infrastructure...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Infrastructure Presented at Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen Conference, April 2-3, 2008, Sacramento, California PDF icon...

  9. Vehicle Technologies Office Merit Review 2014: Refuel Colorado

    Energy.gov [DOE]

    Presentation given by Colorado Energy Office at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Refuel Colorado.

  10. Combined cooling and purification system for nuclear reactor spent fuel pit, refueling cavity, and refueling water storage tank

    DOE Patents [OSTI]

    Corletti, Michael M. (New Kensington, PA); Lau, Louis K. (Monroeville, PA); Schulz, Terry L. (Murrysville Boro, PA)

    1993-01-01

    The spent fuel pit of a pressured water reactor (PWR) nuclear power plant has sufficient coolant capacity that a safety rated cooling system is not required. A non-safety rated combined cooling and purification system with redundant branches selectively provides simultaneously cooling and purification for the spent fuel pit, the refueling cavity, and the refueling water storage tank, and transfers coolant from the refueling water storage tank to the refueling cavity without it passing through the reactor core. Skimmers on the suction piping of the combined cooling and purification system eliminate the need for separate skimmer circuits with dedicated pumps.

  11. Combined cooling and purification system for nuclear reactor spent fuel pit, refueling cavity, and refueling water storage tank

    DOE Patents [OSTI]

    Corletti, M.M.; Lau, L.K.; Schulz, T.L.

    1993-12-14

    The spent fuel pit of a pressured water reactor (PWR) nuclear power plant has sufficient coolant capacity that a safety rated cooling system is not required. A non-safety rated combined cooling and purification system with redundant branches selectively provides simultaneously cooling and purification for the spent fuel pit, the refueling cavity, and the refueling water storage tank, and transfers coolant from the refueling water storage tank to the refueling cavity without it passing through the reactor core. Skimmers on the suction piping of the combined cooling and purification system eliminate the need for separate skimmer circuits with dedicated pumps. 1 figures.

  12. CONNECTING TRANSITIONS IN GALAXY PROPERTIES TO REFUELING

    SciTech Connect (OSTI)

    Kannappan, Sheila J.; Stark, David V.; Eckert, Kathleen D.; Moffett, Amanda J.; Norris, Mark A.; Weinberg-Wolf, Jennifer; Wei, Lisa H.; Fabricant, Daniel G.; Pisano, D. J.; Baker, Andrew J.; Vogel, Stuart N.; Laine, Seppo; Jogee, Shardha; Lepore, Natasha; Hough, Loren E.

    2013-11-01

    We relate transitions in galaxy structure and gas content to refueling, here defined to include both the external gas accretion and the internal gas processing needed to renew reservoirs for star formation. We analyze two z = 0 data sets: a high-quality ∼200 galaxy sample (the Nearby Field Galaxy Survey, data release herein) and a volume-limited ∼3000 galaxy sample with reprocessed archival data. Both reach down to baryonic masses ∼10{sup 9} M{sub ☉} and span void-to-cluster environments. Two mass-dependent transitions are evident: (1) below the 'gas-richness threshold' scale (V ∼ 125 km s{sup –1}), gas-dominated quasi-bulgeless Sd-Im galaxies become numerically dominant; while (2) above the 'bimodality' scale (V ∼ 200 km s{sup –1}), gas-starved E/S0s become the norm. Notwithstanding these transitions, galaxy mass (or V as its proxy) is a poor predictor of gas-to-stellar mass ratio M{sub gas}/M{sub *}. Instead, M{sub gas}/M{sub *} correlates well with the ratio of a galaxy's stellar mass formed in the last Gyr to its preexisting stellar mass, such that the two ratios have numerically similar values. This striking correspondence between past-averaged star formation and current gas richness implies routine refueling of star-forming galaxies on Gyr timescales. We argue that this refueling underlies the tight M{sub gas}/M{sub *} versus color correlations often used to measure 'photometric gas fractions'. Furthermore, the threshold and bimodality scale transitions reflect mass-dependent demographic shifts between three refueling regimes—accretion-dominated, processing-dominated, and quenched. In this picture, gas-dominated dwarfs are explained not by inefficient star formation but by overwhelming gas accretion, which fuels stellar mass doubling in ∼<1 Gyr. Moreover, moderately gas-rich bulged disks such as the Milky Way are transitional, becoming abundant only in the narrow range between the threshold and bimodality scales.

  13. Instrumentation and Control Technologies for Refueling the AHTR

    SciTech Connect (OSTI)

    Holcomb, David Eugene; Varma, Venugopal Koikal

    2012-01-01

    The process and mechanisms for refueling the Advanced High-Temperature Reactor (AHTR) are currently undergoing preconceptual design. The instrumentation and controls (I&C) required for the fuel transfer are simultaneously under design as part of this process. Overall, the AHTR's refueling system will consist of a fully automated, optically guided mechanical transfer system with operator intervention only required for exception handling. The refueling system design remains too immature to enable selection of particular instrumentation components. This paper provides an overview of the refueling process for the AHTR, the I&C requirements for the refueling, the current I&C design and technology status, and the envisioned process for developing and validating the required technology.

  14. Hydrogen Home Refueling: Status, Key Issues, and Challenges

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electrolytic Hydrogen Production Workshop NREL, Golden, Colorado Hydrogen Home Refueling Status, Ke y Issue s, and Challenges Cortney Mittelsteadt VP, Technology Giner, Inc. February 27-28 th , 2014 89 Rum ford Ave, Newton, Ma. 02466 Based on Forecourt H2A Model (Ver. 3.0) H 2 Production Cost Contribution DOE Target Home Refueler  requirement for H70 hydrogen refu  6,250 psig)     meet 2020 target for H70 ref *M echani cal Com pressor not requi red for H35 refuel i ng. Com

  15. H2 Refuel H-Prize Safety Guidance Webinar | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Safety Guidance Webinar H2 Refuel H-Prize Safety Guidance Webinar Access the recording and download the presentation slides from the Fuel Cell Technologies Office webinar "H2 Refuel H-Prize Safety Guidance" held on August 6, 2015. H2 Refuel H-Prize Safety Guidance Webinar Slides (3.51 MB) More Documents & Publications H2 Refuel H-Prize Overview and Q&A Webinar Recording H2 Refuel H-Prize Overview and Q&A H2 Refuel H-Prize Updates and Q&A H2 Refuel H-Prize Updates and

  16. At-Home Natural Gas Refueling | GE Global Research

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    At-Home Refueling for Natural Gas (NG) Vehicles Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) ...

  17. Webinar: H2 Refuel H-Prize Safety Guidance

    Energy.gov [DOE]

    The Fuel Cell Technologies Office will present a live webinar entitled "H2 Refuel H-Prize Safety Guidance" on Thursday, August 6, from 1 to 2 p.m. Eastern Daylight Time.

  18. Regional Consumer Hydrogen Demand and Optimal Hydrogen Refueling Station Siting

    SciTech Connect (OSTI)

    Melendez, M.; Milbrandt, A.

    2008-04-01

    Using a GIS approach to spatially analyze key attributes affecting hydrogen market transformation, this study proposes hypothetical hydrogen refueling station locations in select subregions to demonstrate a method for determining station locations based on geographic criteria.

  19. H2 Refuel H-Prize Technical Data Collection Requirements

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    H2 Refuel H-Prize Technical Data Collection Requirements Katie Randolph, PhD Sarah Studer, PhD U.S. Department of Energy Fuel Cell Technologies Office 2 Question and Answer * ...

  20. Hydrogen Vehicles and Refueling Infrastructure in India | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Refueling Infrastructure in India Hydrogen Vehicles and Refueling Infrastructure in India Presentation given by L.M. Das of the India Institute of Technology at the CNG and Hydrogen Lessons Learned Workshop on December 10, 2009 cng_h2_workshop_11_das.pdf (7.37 MB) More Documents & Publications Successful Adoption of CNG and Energing CNG-Hydrogen Program in India Overview of Indian Hydrogen Program and Key Safety Issues of Hydrogen Fuel

  1. Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression This presentation by Matther Weaver of Pdc Machines Inc. was given at the was given at the DOE Hydrogen Compression, Storage, and Dispensing Workshop in March 2013. csd_workshop_3_weaver.pdf (1.36 MB) More Documents & Publications 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report CX-100223

  2. Minimizing or eliminating refueling of nuclear reactor

    DOE Patents [OSTI]

    Doncals, Richard A.; Paik, Nam-Chin; Andre, Sandra V.; Porter, Charles A.; Rathbun, Roy W.; Schwallie, Ambrose L.; Petras, Diane S.

    1989-01-01

    Demand for refueling of a liquid metal fast nuclear reactor having a life of 30 years is eliminated or reduced to intervals of at least 10 years by operating the reactor at a low linear-power density, typically 2.5 kw/ft of fuel rod, rather than 7.5 or 15 kw/ft, which is the prior art practice. So that power of the same magnitude as for prior art reactors is produced, the volume of the core is increased. In addition, the height of the core and it diameter are dimensioned so that the ratio of the height to the diameter approximates 1 to the extent practicable considering the requirement of control and that the pressure drop in the coolant shall not be excessive. The surface area of a cylinder of given volume is a minimum if the ratio of the height to the diameter is 1. By minimizing the surface area, the leakage of neutrons is reduced. By reducing the linear-power density, increasing core volume, reducing fissile enrichment and optimizing core geometry, internal-core breeding of fissionable fuel is substantially enhanced. As a result, core operational life, limited by control worth requirements and fuel burnup capability, is extended up to 30 years of continuous power operation.

  3. Refueling Liquid-Salt-Cooled Very High-Temperature Reactors

    SciTech Connect (OSTI)

    Forsberg, Charles W.; Peterson, Per F.; Cahalan, James E.; Enneking, Jeffrey A.; Phil MacDonald

    2006-07-01

    The liquid-salt-cooled very high-temperature reactor (LS-VHTR), also called the Advanced High-Temperature Reactor (AHTR), is a new reactor concept that combines in a novel way four established technologies: (1) coated-particle graphite-matrix nuclear fuels, (2) Brayton power cycles, (3) passive safety systems and plant designs previously developed for liquid-metal-cooled fast reactors, and (4) low-pressure liquid-salt coolants. Depending upon goals, the peak coolant operating temperatures are between 700 and 1000 deg. C, with reactor outputs between 2400 and 4000 MW(t). Several fluoride salt coolants that are being evaluated have melting points between 350 and 500 deg. C, values that imply minimum refueling temperatures between 400 and 550 deg. C. At operating conditions, the liquid salts are transparent and have physical properties similar to those of water. A series of refueling studies have been initiated to (1) confirm the viability of refueling, (2) define methods for safe rapid refueling, and (3) aid the selection of the preferred AHTR design. Three reactor cores with different fuel element designs (prismatic, pebble bed, and pin-type fuel assembly) are being evaluated. Each is a liquid-salt-cooled variant of a graphite-moderated high-temperature reactor. The refueling studies examined applicable refueling experience from high-temperature reactors (similar fuel element designs) and sodium-cooled fast reactors (similar plant design with liquid coolant, high temperatures, and low pressures). The findings indicate that refueling is viable, and several approaches have been identified. The study results are described in this paper. (authors)

  4. Energy Department Launches H2 Refuel H-Prize Competition for Small-Scale

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hydrogen Refueling Systems | Department of Energy Launches H2 Refuel H-Prize Competition for Small-Scale Hydrogen Refueling Systems Energy Department Launches H2 Refuel H-Prize Competition for Small-Scale Hydrogen Refueling Systems October 29, 2014 - 8:00am Addthis The Energy Department today announced the launch of the $1 million H2 Refuel H-Prize. This two-year competition challenges America's engineers and entrepreneurs to develop affordable systems for small-scale, non-commercial

  5. Fact #816: February 10, 2014 Natural Gas Refueling Stations Grow Over the Last Ten Years

    Energy.gov [DOE]

    In 2003 there were 1,097 natural gas refueling stations nationwide. By 2013, that number increased by about 25% to a total of 1,374 natural gas refueling stations. In 2003, there were six states...

  6. H2 Refuel H-Prize Overview and Q&A | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Overview and Q&A H2 Refuel H-Prize Overview and Q&A Access the recording and download the presentation slides from the Fuel Cell Technologies Office webinar "H2 Refuel H-Prize ...

  7. Reminder: Webinar May 14: H2 Refuel H-Prize Technical Data Collection...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reminder: Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requirements Reminder: Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requirements May 12, 2015 - ...

  8. Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requiremen...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    May 14: H2 Refuel H-Prize Technical Data Collection Requirements Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requirements April 6, 2015 - 11:26am Addthis The ...

  9. The Future of Fuel and Refueling | GE Global Research

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Future of Fuel and Refueling Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) The Future of Fuel and Refueling Anna Lis Laursen 2012.07.18 Due to the large domestic Natural Gas reserves, the interest in developing new technology to allow profitable use of NG, has increased significantly. ARPA-E has identified an

  10. L/CNG - Refueling Systems - Energy Innovation Portal

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Vehicles and Fuels Vehicles and Fuels Find More Like This Return to Search L/CNG - Refueling Systems Idaho National Laboratory Contact INL About This Technology Technology Marketing Summary INL has developed a LNG/CNG refueling process and method for dispensing liquefied natural gas (LNG), compressed natural gas (CNG) or both on demand. The process utilizes CNG as a source of LNG, and is stored in a cryogenic storage vessel on site. A low volume high pressure pump is coupled to the source of LNG

  11. H2 Refuel Competition Makes Progress | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    H2 Refuel Competition Makes Progress H2 Refuel Competition Makes Progress November 2, 2016 - 10:55am Addthis A rendering of a finalist's hydrogen fueling system from the H-Prize. SimpleFuel's system (built by Ivys, PDC Machines, and McPhy North America) has already produced and dispensed over 70 kg of hydrogen--enough fuel to drive a fuel cell car 4,200 miles. | Photo courtesy of Ivys Inc. A rendering of a finalist's hydrogen fueling system from the H-Prize. SimpleFuel's system (built by Ivys,

  12. Procedures and equipment for shortening refueling outages in Babcock and Wilcox PWRs. Final report

    SciTech Connect (OSTI)

    Baker, H.A.; Carr, C.W.

    1985-04-01

    New refueling equipment and procedures - plus a software package bid specification for outage management - can reduce refueling outages in Babcock and Wilcox PWRs. At Duke Power Company's Oconee nuclear station, a single modification in the fuel-handling system cut 5 days off the refueling schedule.

  13. Optimization of compression and storage requirements at hydrogen refueling stations.

    SciTech Connect (OSTI)

    Elgowainy, A.; Mintz, M.; Kelly, B.; Hooks, M.; Paster, M.

    2008-01-01

    The transition to hydrogen-powered vehicles requires detailed technical and economic analyses of all aspects of hydrogen infrastructure, including refueling stations. The cost of such stations is a major contributor to the delivered cost of hydrogen. Hydrogen refueling stations require not only dispensers to transfer fuel onto a vehicle, but also an array of such ancillary equipment as a cascade charging system, storage vessels, compressors and/or pumps/evaporators. This paper provides detailed information on design requirements for gaseous and liquid hydrogen refueling stations and their associated capital and operating costs, which in turn impact hydrogen selling price at various levels of hydrogen demand. It summarizes an engineering economics approach which captures the effect of variations in station size, seasonal, daily and hourly demand, and alternative dispensing rates and pressures on station cost. Tradeoffs in the capacity of refueling station compressors, storage vessels, and the cascade charging system result in many possible configurations for the station. Total costs can be minimized by optimizing that configuration. Using a methodology to iterate among the costs of compression, storage and cascade charging, it was found that the optimum hourly capacity of the compressor is approximately twice the station's average hourly demand, and the optimum capacity of the cascade charging system is approximately 15% of the station's average daily demand. Further, for an hourly demand profile typical of today's gasoline stations, onsite hydrogen storage equivalent to at least 1/3 of the station's average daily demand is needed to accommodate peak demand.

  14. Development of National Liquid Propane (Autogas) Refueling Network...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon tiarravt059day2010...

  15. Development of National Liquid Propane (Autogas) Refueling Network...

    Energy.gov (indexed) [DOE]

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt059tiday2011p.pdf (152.96

  16. Development of National Liquid Propane (Autogas) Refueling Network...

    Energy.gov (indexed) [DOE]

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting arravt059tiday2012o.pdf (167.75

  17. Renewable Fuels and Lubricants (ReFUEL) Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This fact sheet describes the Renewable Fuels and Lubricants (ReFUEL) Laboratory at the U.S. Department of Energy National Renewable Energy Laboratory (NREL) is a state-of-the-art research and testing facility for advanced fuels and vehicles. Research and development aims to improve vehicle efficiency and overcome barriers to the increased use of renewable diesel and other nonpetroleum-based fuels, such as biodiesel and synthetic diesel derived from biomass. The ReFUEL Laboratory features a chassis dynamometer for vehicle performance and emissions research, two engine dynamometer test cells for advanced fuels research, and precise emissions analysis equipment. As a complement to these capabilities, detailed studies of fuel properties, with a focus on ignition quality, are performed at NREL's Fuel Chemistry Laboratory.

  18. Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression Over 185 Compressors in the Worlds 220+ Hydrogen Energy Facilities Diaphragm Compressor Technology: Benefits of Technology: - Highest duty cycle of all current technologies - Lowest power consumption of the technologies - Lowest cooling requirements Challenges: - High(er) capital cost amongst the technologies - Currently - If not run properly, susceptible to maintenance problems. - Compressor likes to "run often".

  19. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hydrogen | Department of Energy Proceedings from the DOE sponsored Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen workshop to understand how lessons from past experiences can inform future efforts to commercialize hydrogen vehicles. 43669.pdf (1.5 MB) More Documents & Publications IPHE Infrastructure Workshop - Workshop Proceedings, February 25-26, 2010 Sacramento, CA Hydrogen Energy Storage for Grid and Transportation Services Workshop Hydrogen

  20. B-2 Bomber During In-flight Refueling Normal Heart

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    2 Bomber During In-flight Refueling Normal Heart Image Technology to Detect Concealed Nuclear Material in Trucks and Cargo Containers Single Abnormality Possible Heart Attack Disc Drive Computer Chip MP3 Player Protein Structure Energy Research Energy Security As part of the nation's energy security strategy, there is renewed focus on nuclear energy. It is critical that fuel elements and the construction materials for new reactors be well characterized. LAN- SCE is developing the Materials Test

  1. Evaluating the Safety of a Natural Gas Home Refueling Appliance (HRA)

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    A fact sheet summarizing the National Renewable Energy Laboratory safety evaluation of Phill, Fuelmaker Corporation's natural gas home refueling appliance, used to fill CNG vehicles at home.

  2. H2 Refuel H-Prize Aims to Make Fueling Hydrogen Powered Vehicles Easier

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    than Ever | Department of Energy Refuel H-Prize Aims to Make Fueling Hydrogen Powered Vehicles Easier than Ever H2 Refuel H-Prize Aims to Make Fueling Hydrogen Powered Vehicles Easier than Ever December 29, 2014 - 10:15am Addthis A fuel cell electric vehicle is refueled with hydrogen at the National Wind Technology Center in Colorado. The H2 Refuel H-Prize is challenging America’s innovators to develop systems that make it easier and more convenient to fuel hydrogen vehicles. | Photo

  3. Sandia National Laboratories: HyStEP device speeds H2 refueling...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    commissioning. (Photo by Dennis SchroederNREL) Drivers are seeing more hydrogen fuel cell electric vehicles (FCEVs) on the road, but refueling stations for those vehicles are...

  4. H2 Refuel H-Prize Aims to Make Fueling Hydrogen Powered Vehicles...

    Energy.gov (indexed) [DOE]

    ... Small scale hydrogen production systems using either water electrolysis or natural gas reforming have been demonstrated before but meeting all the H2 Refuel criteria for fueling, ...

  5. H2 Refuel H-Prize Technical Data Collection Requirements | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technical Data Collection Requirements H2 Refuel H-Prize Technical Data Collection Requirements Access the recording and download the presentation slides from the Fuel Cell ...

  6. Qualitative Risk Assessment For An LNG Refueling Station And Review Of Relevant Safety Issues, Revision 2

    SciTech Connect (OSTI)

    Siu, Nathan; Herring, J Stephen; Cadwallader, Lee; Reece, Wendy; Byers, James

    2014-06-25

    This report is a qualitative assessment of the public and worker risk involved with the operation of liquefied natural gas vehicle refueling facility.

  7. Webinar September 22: H2 Refuel H-Prize Updates and Q&A | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    September 22: H2 Refuel H-Prize Updates and Q&A Webinar September 22: H2 Refuel H-Prize Updates and Q&A September 15, 2015 - 11:53am Addthis The Fuel Cell Technologies Office will ...

  8. Fire Protection Engineering Design Brief Template. Hydrogen Refueling Station.

    SciTech Connect (OSTI)

    LaFleur, Angela Christine; Muna, Alice Baca; Groth, Katrina M.

    2015-08-01

    Building a hydrogen infrastructure system is critical to supporting the development of alternate- fuel vehicles. This report provides a methodology for implementing a performance-based design of an outdoor hydrogen refueling station that does not meet specific prescriptive requirements in NFPA 2, The Hydrogen Technologies Code . Performance-based designs are a code-compliant alternative to meeting prescriptive requirements. Compliance is demonstrated by comparing a prescriptive-based fueling station design with a performance-based design approach using Quantitative Risk Assessment (QRA) methods and hydrogen risk assessment tools. This template utilizes the Sandia-developed QRA tool, Hydrogen Risk Analysis Models (HyRAM), which combines reduced-order deterministic models that characterize hydrogen release and flame behavior with probabilistic risk models to quantify risk values. Each project is unique and this template is not intended to account for site-specific characteristics. Instead, example content and a methodology are provided for a representative hydrogen refueling site which can be built upon for new hydrogen applications.

  9. Low-Cost Methane Liquefaction Plant and Vehicle Refueling Station

    SciTech Connect (OSTI)

    B. Wilding; D. Bramwell

    1999-01-01

    The Idaho National Engineering and Environmental Laboratory (INEEL) is currently negotiating a collaborative effort with Pacific Gas and Electric (PG&E) that will advance the use of liquefied natural gas (LNG) as a vehicle fuel. We plan to develop and demonstrate a small-scale methane liquefaction plant (production of 5,000 to 10,000 gallons per day) and a low-cost ($150,000) LNG refueling station to supply fuel to LNG-powered transit buses and other heavy-duty vehicles. INEEL will perform the research and development work. PG&E will deploy the new facilities commercially in two demonstration projects, one in northern California, and one in southern California.

  10. Energy Department Announces $1 Million H2 Refuel H-Prize Competition

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Finalist | Department of Energy Energy Department Announces $1 Million H2 Refuel H-Prize Competition Finalist Energy Department Announces $1 Million H2 Refuel H-Prize Competition Finalist January 29, 2016 - 4:35pm Addthis Today the Energy Department is announcing SimpleFuel as the finalist for the $1 million H2 Refuel H-Prize Competition. SimpleFuel was selected by an independent judging panel and will have until July 2016 to deploy their small scale, on-site hydrogen generation and fueling

  11. H2 Refuel H-Prize Guideline Update | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Guideline Update H2 Refuel H-Prize Guideline Update September 3, 2015 - 4:04pm Addthis Updates to the H2 Refuel H-Prize guidelines are now available on the H-Prize website. The $1 million H2 Refuel H-Prize, launched in October 2014, challenges America's engineers and entrepreneurs to develop systems for small-scale hydrogen fueling. The guidelines, posted in the Federal Register, have been updated with clarifications, corrections, and additional information, including an alternative scoring

  12. Reminder: Webinar May 14: H2 Refuel H-Prize Technical Data Collection

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Requirements | Department of Energy Reminder: Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requirements Reminder: Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requirements May 12, 2015 - 6:33pm Addthis The Energy Department will present a live webinar entitled "H2 Refuel H-Prize Technical Data Collection Requirements" on Thursday, May 14, at 1 p.m. Eastern Daylight Time. This webinar will go over the technical testing specifications and testing plans

  13. Webinar August 6: H2 Refuel H-Prize Safety Guidance | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    August 6: H2 Refuel H-Prize Safety Guidance Webinar August 6: H2 Refuel H-Prize Safety Guidance August 3, 2015 - 1:11pm Addthis The Fuel Cell Technologies Office will present a live webinar entitled "H2 Refuel H-Prize Safety Guidance" on Thursday, August 6, from 1 to 2 p.m. Eastern Daylight Time. Safe practices for the production, storage, distribution, and use of hydrogen are essential to establish public confidence and for reducing barriers to widespread acceptance of hydrogen

  14. H2 Refuel H-Prize Updates and Q&A

    Energy.gov [DOE]

    The Fuel Cell Technologies Office will present a live webinar titled "H2 Refuel H-Prize Updates and Q&A" on Tuesday, September 22, from 1:00 to 2:00 p.m. Eastern Daylight Time.

  15. H2 Refuel H-Prize Overview and Q&A

    Energy.gov [DOE]

    The Fuel Cell Technologies Office will present a live webinar entitled "H2 Refuel H-Prize Overview and Q&A" on Thursday, June 25, from 1 to 2 p.m. Eastern Daylight Time.

  16. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen; Workshop Proceedings

    SciTech Connect (OSTI)

    Melaina, M. W.; McQueen, S.; Brinch, J.

    2008-07-01

    DOE sponsored the Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen workshop to understand how lessons from past experiences can inform future efforts to commercialize hydrogen vehicles. This report contains the proceedings from the workshop.

  17. Technology-gap analysis of CNG refueling systems. Final report, July 1990-September 1991

    SciTech Connect (OSTI)

    Webb, R.F.

    1991-09-01

    The report provides a review and analysis of existing and emerging Compressed Natural Gas (CNG) refueling technology aimed at defining opportunities for improvements and areas where technical solutions might be sought. Interpretation of technical areas is broad, including not only scientific and engineering studies, laboratory work and technology demonstration (the usual areas for GRI support), but also technology transfer, support to develop and simplify regulations and economic analysis of technology options. The CNG refueling system is analyzed at several levels from an initial overview of the CNG market, at the area, refueling site, major equipment and component levels. The information has been used to generate a portfolio of 24 tasks for consideration by GRI in development of its future R and D program in support of CNG. The Appendix contains detail, references, a glossary and a report on the GRI Refueling Workshop held in Chicago January 16, 1991 (workshop findings are included in the main report but are not segregated from other findings).

  18. NREL's ReFUEL Laboratory: Center for Transportation Technologies and Systems (CTTS) Fact Sheet

    SciTech Connect (OSTI)

    Not Available

    2002-09-01

    CTTS fact sheet describing NREL's new Renewable Fuels and Lubricants (ReFUEL) Research Laboratory, which will be used to facilitate increased renewable diesel use in heavy-duty vehicles.

  19. H2 Refuel H-Prize Finalist and Administrator to Present at 2016...

    Energy.gov (indexed) [DOE]

    SimpleFuel plans to develop a home-scale refueler that can provide a 1-kilogram fill to vehicles in 15 minutes at 700 bar using hydrogen produced via electrolysis, with a design ...

  20. Energy Department Announces $1 Million H2 Refuel H-Prize Competition...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    SimpleFuel plans to develop a home scale refueler that can provide a 1-kilogram fill to vehicles in 15 minutes at 700 bar using hydrogen produced via electrolysis, with a design ...

  1. Fact #832: August 4, 2014 Over Half of the Refueling Stations...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Stations in the U.S. and Canada Sell Diesel Fuel - Dataset Fact 832: August 4, 2014 Over Half of the Refueling Stations in the U.S. and Canada Sell Diesel Fuel - Dataset ...

  2. Fact #782: June 3, 2013 Number of Refueling Stations Continues to Shrink

    Energy.gov [DOE]

    In 1993 there were more than 200,000 refueling stations on our nation's roadways. The number of stations has been decreasing almost every year since then. By 2012, there were just over 150,000...

  3. H2 Refuel H-Prize Updates and Q&A Webinar | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Updates and Q&A Webinar H2 Refuel H-Prize Updates and Q&A Webinar Access the recording and download the presentation slides from the Fuel Cell Technologies Office webinar "H2 ...

  4. H2 Refuel H-Prize Updates and Q&A Webinar

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    9232015 H2 Refuel Updates and Q&A Updates and Q&A Webinar Katie Randolph Sarah Studer ... Technologies Office | 3 9232015 2014-2016 H-Prize competition Challenging America's ...

  5. Economic and technical analysis of distributed utility benefits for hydrogen refueling stations

    SciTech Connect (OSTI)

    Iannucci, J.J.; Eyer, J.M.; Horgan, S.A.; Schoenung, S.M.

    1998-08-01

    This paper discusses the potential economic benefits of operating hydrogen refueling stations to supplying pressurized hydrogen for vehicles, and supplying distributed utility generation, transmission and distribution peaking needs to the utility. The study determined under what circumstances using a hydrogen-fueled generator as a distributed utility generation source, co-located with the hydrogen refueling station components (electrolyzer and storage), would result in cost savings to the station owner, and hence lower hydrogen production costs.

  6. Cryogenic Pressure Vessels for H2 Vehicles Rapidly Refueled by LH2 pump to 700 bar

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vessels for H 2 Vehicles Rapidly Refueled by LH 2 pump to 700 bar Salvador Aceves, Gene Berry, Guillaume Petitpas, Vernon Switzer Lawrence Livermore National Laboratory CAMX meeting October 29 th , 2015 LLNL-PRES-678629 * Cryogenic H 2 Onboard Storage * Temperature as a Degree of Freedom in H 2 storage * LLNL Cryocompressed Project History * 350 Bar Test Vehicle Park & Drive Results * Current Project * 700 bar prototype (cryogenic) vessels * Refueling with LH 2 Pump * Test Vessel Cycling

  7. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen; Workshop Proceedings

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen Workshop Proceedings M.W. Melaina National Renewable Energy Laboratory S. McQueen and J. Brinch Energetics Incorporated Sacramento, California April 3, 2008 Proceedings NREL/BK-560-43669 July 2008 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen Workshop Proceedings M.W. Melaina

  8. Fermi 2: Independent safety assessment of refueling outage

    SciTech Connect (OSTI)

    Arora, H.O. [Detroit Edison, MI (United States)

    1994-12-31

    Industry experience and studies conducted by the U.S. Nuclear Regulatory Commission (NRC) have shown that plants are susceptible to a variety of events that can challenge safety during shutdowns. While these events have neither posed nor indicated an undue risk to public health and safety, they do serve to underscore the importance of effective outage planning and control. The NUMARC 91-06 guidelines suggest that proper planning and execution of outage activities can reduce the likelihood and consequences of events, which ultimately enhances safety during shutdown. The Fermi 2, Independent Safety Engineering Group (ISEG) is charged with the independent safety review of the refueling outage plan and its implementation. The ISEG is responsible for performing a detailed and critical review of proposed outage plan prior to the start of the outage, maintaining surveillance of the adequacy and consistency of the {open_quotes}defense-in-depth{close_quotes} provided during the outage, reviewing the outage plan changes for potential vulnerabilities that could affect safety functions, and investigating selected events that emerge during the course of the outage.

  9. Webinar June 25: H2 Refuel H-Prize Overview and Q&A | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    June 25: H2 Refuel H-Prize Overview and Q&A Webinar June 25: H2 Refuel H-Prize Overview and Q&A June 17, 2015 - 12:17pm Addthis The Fuel Cell Technologies Office will present a live webinar entitled "H2 Refuel H-Prize Overview and Q&A" on Thursday, June 25, from 1 to 2 p.m. Eastern Daylight Time. Learn all about the $1 million H2 Refuel 2014-2016 H-Prize competition, which challenges America's innovators to deploy an on-site hydrogen generation system, using electricity or

  10. CX-011791: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 02/07/2014 Location(s): California Offices(s): National Energy Technology Laboratory

  11. CX-009453: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of a Liquid Propane Autogas Refueling Network CX(s) Applied: B5.22 Date: 11/02/2012 Location(s): West Virginia Offices(s): National Energy Technology Laboratory

  12. CX-009349: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 09/21/2012 Location(s): Ohio Offices(s): National Energy Technology Laboratory

  13. CX-007454: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start - Development of a National Liquid Propane Refueling Network CX(s) Applied: B5.22 Date: 12/20/2011 Location(s): Texas Offices(s): National Energy Technology Laboratory

  14. CX-011268: Categorical Exclusion Determination

    Energy.gov [DOE]

    “Clean Start” – Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 09/30/2013 Location(s): West Virginia Offices(s): National Energy Technology Laboratory

  15. CX-007489: Categorical Exclusion Determination

    Energy.gov [DOE]

    Clean Start - Development of a National Liquid Propane Refueling Network CX(s) Applied: B5.22 Date: 12/06/2011 Location(s): Arizona Offices(s): National Energy Technology Laboratory

  16. CX-007583: Categorical Exclusion Determination

    Energy.gov [DOE]

    Clean Start - Development of a National Liquid Propane Refueling Network CX(s) Applied: B5.1, B5.22 Date: 12/29/2011 Location(s): Arizona Offices(s): National Energy Technology Laboratory

  17. CX-009348: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 09/21/2012 Location(s): New Hampshire Offices(s): National Energy Technology Laboratory

  18. CX-010972: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 09/16/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory

  19. CX-010969: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 09/16/2013 Location(s): Florida Offices(s): National Energy Technology Laboratory

  20. CX-010970: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 09/16/2013 Location(s): New Hampshire Offices(s): National Energy Technology Laboratory

  1. CX-010971: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 09/16/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory

  2. CX-010892: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 06/28/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory

  3. CX-010637: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Clean Start Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 06/28/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory

  4. CX-010284: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 05/10/2013 Location(s): West Virginia Offices(s): National Energy Technology Laboratory

  5. CX-010617: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 07/18/2013 Location(s): West Virginia Offices(s): National Energy Technology Laboratory

  6. CX-010616: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 07/18/2013 Location(s): New York Offices(s): National Energy Technology Laboratory

  7. CX-010600: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 07/25/2013 Location(s): Indiana Offices(s): National Energy Technology Laboratory

  8. CX-010601: Categorical Exclusion Determination

    Energy.gov [DOE]

    Construction of an Autogas Refueling Network CX(s) Applied: B5.22 Date: 07/25/2013 Location(s): Indiana Offices(s): National Energy Technology Laboratory

  9. Development of a simple 5-15 litre per hour LNG refueling system

    SciTech Connect (OSTI)

    Corless, A.J.; Sarangi, S.; Hall, J.L.; Barclay, J.A.

    1994-12-31

    A variable capacity, small-scale liquefied natural gas (LNG) refueling system has been designed, built, and tested at the Cryofuel Systems` Laboratory, University of Victoria, Canada. The system, designed to continuously liquefy between 5 and 15 litres of NG, utilizes liquid nitrogen (LN{sub 2}) as its cold source and contains most of the components found in a typical commercial refueling system; i.e. purification system, liquefier, LNG storage, automatic control and monitoring system. This paper describes the design of the system as well as the results of a set of LNG production trials. The performance of the system exceeded expected LNG production rates, but at levels of efficiency somewhat less than predicted. Cryofuel Systems expects to use this system to implement an LNG vehicle demonstration program and to gain experience in the integration of LNG refueling systems which exploit advanced liquefaction technology such as magnetic refrigeration.

  10. Alternative Transportation Refueling Infrastructure in the U.S. 2014: Status and Challenges

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lack of adequate refueling infrastructure is a major barrier to the success of alternative motor fuels. A transition from fossil petroleum to alternative, low-carbon transportation fuels appears to be necessary to mitigate the adverse impacts of global warming, strengthen energy security and meet air quality standards. Finding effective combinations of business models and public policies to accomplish a transition to alternative fuels poses a new and difficult challenge. Focusing on highway vehicles, this paper reviews the motivation for transition to alternative fuels, the current status of alternative fuel refueling infrastructure in the U.S., the costs of such infrastructure and business models and policies that have been proposed to achieve a successful transition. The goal of this paper is to serve as a basis for innovative thinking and discussion rather than as a comprehensive analysis of the issue. Infrastructure for producing and delivering fuels to refueling stations is equally important but is outside the scope of this paper.

  11. Fact #832: August 4, 2014 Over Half of the Refueling Stations in the U.S. and Canada Sell Diesel Fuel

    Energy.gov [DOE]

    A 2014 survey of over 110,000 refueling stations in the U.S. and Canada shows that over half of all refueling stations sell diesel fuel. The survey results are shown for five different regions of...

  12. Nuclear Safety Risk Management in Refueling Outage of Qinshan Nuclear Power Plant

    SciTech Connect (OSTI)

    Meijing Wu; Guozhang Shen

    2006-07-01

    The NPP is used to planning maintenance, in-service inspection, surveillance test, fuel handling and design modification in the refueling outage; the operator response capability will be reduced plus some of the plant systems out of service or loss of power at this time. Based on 8 times refueling outage experiences of the Qinshan NPP, this article provide some good practice and lesson learned for the nuclear safety risk management focus at four safety function areas of Residual Heat Removal Capability, Inventory Control, Power availability and Reactivity control. (authors)

  13. Interested in Hydrogen and Fuel Cell Technologies? Help Shape the H2 Refuel

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    H-Prize Competition | Department of Energy Interested in Hydrogen and Fuel Cell Technologies? Help Shape the H2 Refuel H-Prize Competition Interested in Hydrogen and Fuel Cell Technologies? Help Shape the H2 Refuel H-Prize Competition March 27, 2014 - 1:52pm Addthis The Energy Department recently released a new video in its popular Energy 101 series showing how fuel cell technology generates clean electricity from hydrogen to power our buildings and transportation-while emitting nothing but

  14. H2 Refuel H-Prize Finalist and Administrator to Present at 2016 Annual

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Merit Review | Department of Energy Finalist and Administrator to Present at 2016 Annual Merit Review H2 Refuel H-Prize Finalist and Administrator to Present at 2016 Annual Merit Review June 7, 2016 - 2:56pm Addthis SimpleFuel, the 2016 H2 Refuel H-Prize finalist, recently unveiled a model of its system and will present a poster with information about its entry and plans for the competition during the lunch and evening poster sessions at the Annual Merit Review on Wednesday, June 8.

  15. Study on neutronic of very small Pb - Bi cooled no-onsite refueling nuclear power reactor (VSPINNOR)

    SciTech Connect (OSTI)

    Arianto, Fajar; Su'ud, Zaki; Zuhair

    2014-09-30

    A conceptual design study on Very Small Pb-Bi No-Onsite Refueling Cooled Nuclear Reactor (VSPINNOR) with Uranium nitride fuel using MCNPX program has been performed. In this design the reactor core is divided into three regions with different enrichment. At the center of the core is laid fuel without enrichment (internal blanket). While for the outer region using fuel enrichment variations. VSPINNOR fast reactor was operated for 10 years without refueling. Neutronic analysis shows optimized result of VSPINNOR has a core of 50 cm radius and 100 cm height with 300 MWth thermal power output at 60% fuel fraction that can be operated 18 years without refueling or fuel shuffling.

  16. Final regulatory impact analysis: Refueling emission regulations for light duty vehicles and trucks and heavy duty vehicles

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    Culminating a rulemaking process which has spanned more than a decade, the Environmental Protection Agency (EPA) is now promulating final regulations requiring all highway light-duty vehicles, light-duty trucks, and heavy-duty vehicles to meet onboard refueling vapor recovery (ORVR or onboard control) standards. The purpose of this analysis is to evaluate the costs, benefits, and overall cost effectiveness of onboard control for the reduction of refueling emissions from highway motor vehicles.

  17. Zinc air refuelable battery: alternative zinc fuel morphologies and cell behavior

    SciTech Connect (OSTI)

    Cooper, J.F.; Krueger, R.

    1997-01-01

    Multicell zinc/air batteries have been tested previously in the laboratory and as part of the propulsion system of an electric bus; cut zinc wire was used as the anode material. This battery is refueled by a hydraulic transport of 0.5-1 mm zinc particles into hoppers above each cell. We report an investigation concerning alternative zinc fuel morphologies, and energy losses associated with refueling and with overnight or prolonged standby. Three types of fuel pellets were fabricated, tested and compared with results for cut wire: spheres produced in a fluidized bed electrolysis cell; elongated particles produced by gas-atomization; and pellets produced by chopping 1 mm porous plates made of compacted zinc fines. Relative sizes of the particles and cell gap dimensions are critical. All three types transported within the cell 1553 and showed acceptable discharge characteristics, but a fluidized bed approach appears especially attractive for owner/user recovery operations.

  18. Qualitative Risk Assessment for an LNG Refueling Station and Review of Relevant Safety Issues

    SciTech Connect (OSTI)

    Siu, N.; Herring, J.S.; Cadwallader, L.; Reece, W.; Byers, J.

    1998-02-01

    This report is a qualitative assessment of the public and worker risk involved with the operation of a liquefied natural gas (LNG) vehicle refueling facility. This study includes facility maintenance and operations, tank truck deliveries, and end-use vehicle fueling; it does not treat the risks of LNG vehicles on roadways. Accident initiating events are identified by using a Master Logic Diagram, a Failure Modes and Effects Analysis, and historical operating experiences. The event trees were drawn to depict possible sequences of mitigating events following the initiating events. The phenomenology of LNG and other vehicle fuels is discussed to characterize the hazard posed by LNG usage. Based on the risk modeling and analysis, recommendations are given to improve the safety of LNG refueling stations in the areas of procedures and training, station design, and the dissemination of ``best practice`` information throughout the LNG community.

  19. Interim qualitative risk assessment for an LNG refueling station and review of relevant safety issues

    SciTech Connect (OSTI)

    Siu, N.; Herring, S.; Cadwallader, L.; Reece, W.; Byers, J.

    1997-07-01

    This report is a qualitative assessment of the public and worker risk involved with the operation of a liquefied natural (LNG) vehicle refueling facility. This study includes facility maintenance and operations, tanker truck delivers and end-use vehicle fueling; it does not treat the risks of LNG vehicles on roadways. Accident initiating events are identified by using a Master Logic Diagram, a Failure Modes and Effects analysis and historical operating experiences. The event trees were drawn to depict possible sequences of mitigating events following the initiating events. The phenomenology of LNG and other vehicle fuels is discussed to characterize the hazard posed by LNG usage. Based on the risk modeling and analysis, recommendations are given to improve the safety of LNG refueling stations in the areas of procedures and training, station design, and the dissemination of best practice information throughout the LNG community.

  20. Webinar May 14: H2 Refuel H-Prize Technical Data Collection Requirements

    Energy.gov [DOE]

    The technical testing specifications are now available for the Energy Department's Fuel Cell Technologies Office's $1 million H2 Refuel H-Prize competition, a two-year competition administered by the Hydrogen Education Foundation that challenges America's engineers and entrepreneurs to develop systems for small-scale hydrogen fueling. The Energy Department will present a webinar on May 14, 2015, at 1 p.m. Eastern Daylight Time to go over the specifications and testing plans and answer questions.

  1. Webinar: H2 Refuel H-Prize Technical Data Collection Requirements

    Energy.gov [DOE]

    The Energy Department will present a webinar on May 14, 2015, at 1 p.m. Eastern Daylight Time about the technical testing specifications for the Energy Department's Fuel Cell Technologies Office's $1 million H2 Refuel H-Prize competition, a two-year competition administered by the Hydrogen Education Foundation that challenges America's engineers and entrepreneurs to develop affordable systems for small-scale hydrogen fueling.

  2. Lab-developed hydrogen sensors tested at SoCal refueling stations

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    November » Lab-developed hydrogen sensors tested at SoCal Lab-developed hydrogen sensors tested at SoCal refueling stations Government agencies are turning to Los Alamos National Laboratory and Lawrence Livermore National Lab to help detect leaks that could potentially lead to fire. November 8, 2016 The sensor for detecting hydrogen gas. It is more robust and cheaper to manufacture than existing technology. The sensor for detecting hydrogen gas. It is more robust and cheaper to manufacture than

  3. Refueling Behavior of Flexible Fuel Vehicle Drivers in the Federal Fleet

    SciTech Connect (OSTI)

    Daley, R.; Nangle, J.; Boeckman, G.; Miller, M.

    2014-05-01

    Federal fleets are a frequent subject of legislative and executive efforts to lead a national transition to alternative fuels and advanced vehicle technologies. Section 701 of the Energy Policy Act of 2005 requires that all dual-fueled alternative fuel vehicles in the federal fleet be operated on alternative fuel 100% of the time when they have access to it. However, in Fiscal Year (FY) 2012, drivers of federal flex fuel vehicles (FFV) leased through the General Services Administration refueled with E85 24% of the time when it was available--falling well short of the mandate. The U.S. Department of Energy's National Renewable Energy Laboratory completed a 2-year Laboratory Directed Research and Development project to identify the factors that influence the refueling behavior of federal FFV drivers. The project began with two primary hypotheses. First, information scarcity increases the tendency to miss opportunities to purchase E85. Second, even with perfect information, there are limits to how far drivers will go out of their way to purchase E85. This paper discusses the results of the project, which included a June 2012 survey of federal fleet drivers and an empirical analysis of actual refueling behavior from FY 2009 to 2012. This research will aid in the design and implementation of intervention programs aimed at increasing alternative fuel use and reducing petroleum consumption.

  4. Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report by Oak Ridge National Laboratory assesses the current status of automotive fuel cell technology and the plans for the deployment of refueling infrastructure.

  5. Fact #832: August 4, 2014 Over Half of the Refueling Stations in the U.S. and Canada Sell Diesel Fuel- Dataset

    Energy.gov [DOE]

    Excel file with dataset for Fact #832: Over Half of the Refueling Stations in the U.S. and Canada Sell Diesel Fuel

  6. Community Energy: Analysis of Hydrogen Distributed Energy Systems with Photovoltaics for Load Leveling and Vehicle Refueling

    SciTech Connect (OSTI)

    Steward, D.; Zuboy, J.

    2014-10-01

    Energy storage could complement PV electricity generation at the community level. Because PV generation is intermittent, strategies must be implemented to integrate it into the electricity system. Hydrogen and fuel cell technologies offer possible PV integration strategies, including the community-level approaches analyzed in this report: (1) using hydrogen production, storage, and reconversion to electricity to level PV generation and grid loads (reconversion scenario); (2) using hydrogen production and storage to capture peak PV generation and refuel hydrogen fuel cell electric vehicles (FCEVs) (hydrogen fueling scenario); and (3) a comparison scenario using a battery system to store electricity for EV nighttime charging (electric charging scenario).

  7. Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure

    SciTech Connect (OSTI)

    Greene, David L; Duleep, Gopal

    2013-06-01

    Automobile manufacturers leading the development of mass-market fuel cell vehicles (FCVs) were interviewed in Japan, Korea, Germany and the United States. There is general agreement that the performance of FCVs with respect to durability, cold start, packaging, acceleration, refueling time and range has progressed to the point where vehicles that could be brought to market in 2015 will satisfy customer expectations. However, cost and the lack of refueling infrastructure remain significant barriers. Costs have been dramatically reduced over the past decade, yet are still about twice what appears to be needed for sustainable market success. While all four countries have plans for the early deployment of hydrogen refueling infrastructure, the roles of government, industry and the public in creating a viable hydrogen refueling infrastructure remain unresolved. The existence of an adequate refueling infrastructure and supporting government policies are likely to be the critical factors that determine when and where hydrogen FCVs are brought to market.

  8. Modeling & analysis of criticality-induced severe accidents during refueling for the Advanced Neutron Source Reactor

    SciTech Connect (OSTI)

    Georgevich, V.; Kim, S.H.; Taleyarkhan, R.P.; Jackson, S.

    1992-10-01

    This paper describes work done at the Oak Ridge National Laboratory (ORNL) for evaluating the potential and resulting consequences of a hypothetical criticality accident during refueling of the 330-MW Advanced Neutron Source (ANS) research reactor. The development of an analytical capability is described. Modeling and problem formulation were conducted using concepts of reactor neutronic theory for determining power level escalation, coupled with ORIGEN and MELCOR code simulations for radionuclide buildup and containment transport Gaussian plume transport modeling was done for determining off-site radiological consequences. Nuances associated with modeling this blast-type scenario are described. Analysis results for ANS containment response under a variety of postulated scenarios and containment failure modes are presented. It is demonstrated that individuals at the reactor site boundary will not receive doses beyond regulatory limits for any of the containment configurations studied.

  9. Reducing Duration of Refueling Outage by Optimizing Core Design and Shuffling Sequence

    SciTech Connect (OSTI)

    Wakker, P.H.; Verhagen, F.C.M.; Bloois, J.T. van; Sutton, W.R. III

    2005-07-15

    Reducing the duration of refueling outage is possible by optimizing the core design and the shuffling sequence. For both options software tools have been developed that have been applied to the three most recent cycles of the Borssele plant in the Netherlands. Applicability of the shuffling sequence optimization to boiling water reactors has been demonstrated by a comparison to a recent shuffle plan used in the Hatch plant located in the United States. Their uses have shown that both core design and shuffling sequence optimization can be exploited to reduce the time needed for reloading a core with an in-core shuffling scheme. Ex-core shuffling schemes for pressurized water reactors can still have substantial benefit from a core design using a minimized number of insert shuffles.

  10. Research and Development of a PEM Fuel Cell, Hydrogen Reformer, and Vehicle Refueling Facility

    SciTech Connect (OSTI)

    Edward F. Kiczek

    2007-08-31

    Air Products and Chemicals, Inc. has teamed with Plug Power, Inc. of Latham, NY, and the City of Las Vegas, NV, to develop, design, procure, install and operate an on-site hydrogen generation system, an alternative vehicle refueling system, and a stationary hydrogen fuel cell power plant, located in Las Vegas. The facility will become the benchmark for validating new natural gas-based hydrogen systems, PEM fuel cell power generation systems, and numerous new technologies for the safe and reliable delivery of hydrogen as a fuel to vehicles. Most important, this facility will serve as a demonstration of hydrogen as a safe and clean energy alternative. Las Vegas provides an excellent real-world performance and durability testing environment.

  11. Risk associated with the use of barriers in hydrogen refueling stations.

    SciTech Connect (OSTI)

    LaChance, Jeffrey L.; Phillips, Jesse; Houf, William G.

    2010-03-01

    Separation distances are used in hydrogen refueling stations to protect people, structures, and equipment from the consequences of accidental hydrogen releases. Specifically, hydrogen jet flames resulting from ignition of unintended releases can be extensive in length and pose significant radiation and impingement hazards. Depending on the leak diameter and source pressure, the resulting separation distances can be unacceptably large. One possible mitigation strategy to reduce exposure to hydrogen flames is to incorporate barriers around hydrogen storage, process piping, and delivery equipment. The effectiveness of barrier walls to reduce hazards at hydrogen facilities has been previously evaluated using experimental and modeling information developed at Sandia National Laboratories. The effect of barriers on the risk from different types of hazards including direct flame contact, radiation heat fluxes, and overpressures associated with delayed hydrogen ignition has subsequently been evaluated and used to identify potential reductions in separation distances in hydrogen facilities. Both the frequency and consequences used in this risk assessment and the risk results are described. The results of the barrier risk analysis can also be used to help establish risk-informed barrier design requirements for use in hydrogen codes and standards.

  12. Alcohol-fueled vehicles: An alternative fuels vehicle, emissions, and refueling infrastructure technology assessment

    SciTech Connect (OSTI)

    McCoy, G.A.; Kerstetter, J.; Lyons, J.K.

    1993-06-01

    Interest in alternative motor vehicle fuels has grown tremendously over the last few years. The 1990 Clean Air Act Amendments, the National Energy Policy Act of 1992 and the California Clean Air Act are primarily responsible for this resurgence and have spurred both the motor fuels and vehicle manufacturing industries into action. For the first time, all three U.S. auto manufacturers are offering alternative fuel vehicles to the motoring public. At the same time, a small but growing alternative fuels refueling infrastructure is beginning to develop across the country. Although the recent growth in alternative motor fuels use is impressive, their market niche is still being defined. Environmental regulations, a key driver behind alternative fuel use, is forcing both car makers and the petroleum industry to clean up their products. As a result, alternative fuels no longer have a lock on the clean air market and will have to compete with conventional vehicles in meeting stringent future vehicle emission standards. The development of cleaner burning gasoline powered vehicles has signaled a shift in the marketing of alternative fuels. While they will continue to play a major part in the clean vehicle market, alternative fuels are increasingly recognized as a means to reduce oil imports. This new role is clearly defined in the National Energy Policy Act of 1992. The Act identifies alternative fuels as a key strategy for reducing imports of foreign oil and mandates their use for federal and state fleets, while reserving the right to require private and municipal fleet use as well.

  13. Core and Refueling Design Studies for the Advanced High Temperature Reactor

    SciTech Connect (OSTI)

    Holcomb, David Eugene; Ilas, Dan; Varma, Venugopal Koikal; Cisneros, Anselmo T; Kelly, Ryan P; Gehin, Jess C

    2011-09-01

    The Advanced High Temperature Reactor (AHTR) is a design concept for a central generating station type [3400 MW(t)] fluoride-salt-cooled high-temperature reactor (FHR). The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. This report presents the current status of ongoing design studies of the core, in-vessel structures, and refueling options for the AHTR. The AHTR design remains at the notional level of maturity as important material, structural, neutronic, and hydraulic issues remain to be addressed. The present design space exploration, however, indicates that reasonable options exist for the AHTR core, primary heat transport path, and fuel cycle provided that materials and systems technologies develop as anticipated. An illustration of the current AHTR core, reactor vessel, and nearby structures is shown in Fig. ES1. The AHTR core design concept is based upon 252 hexagonal, plate fuel assemblies configured to form a roughly cylindrical core. The core has a fueled height of 5.5 m with 25 cm of reflector above and below the core. The fuel assembly hexagons are {approx}45 cm across the flats. Each fuel assembly contains 18 plates that are 23.9 cm wide and 2.55 cm thick. The reactor vessel has an exterior diameter of 10.48 m and a height of 17.7 m. A row of replaceable graphite reflector prismatic blocks surrounds the core radially. A more complete reactor configuration description is provided in Section 2 of this report. The AHTR core design space exploration was performed under a set of constraints. Only low enrichment (<20%) uranium fuel was considered. The coated particle fuel and matrix materials were derived from those being developed and demonstrated under the Department of Energy Office of Nuclear Energy (DOE-NE) advanced gas reactor program. The coated particle volumetric packing fraction was restricted to at most 40%. The pressure

  14. Development of National Liquid Propane (Autogas) Refueling Network, Clean School Bus/Vehicle Incentive & Green Jobs Outreach Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  15. Development of National Liquid Propane (Autogas) Refueling Network, Clean School Bus/Vehicle Incentive & Green Jobs Outreach Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  16. Development of National Liquid Propane (Autogas) Refueling Network, Clean School Bus/Vehicle Incentive & Green Jobs Outreach Program

    Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ORNL/TM-2013/222 Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure Revised July 2013 1 Prepared by David L. Greene Oak Ridge National Laboratory Gopal Duleep HD Systems 1 This is a revised version of the paper originally published in June 2013. DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web

  18. California Hydrogen Highway Network October 3, 2007

    Energy.gov [DOE]

    Presented at Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen Conference, April 2-3, 2008, Sacramento, California

  19. CX-009556: Categorical Exclusion Determination

    Energy.gov [DOE]

    Validation of Hydrogen Refueling Station Performance and Advanced Refueling Components CX(s) Applied: A9, B5.22 Date: 12/10/2012 Location(s): California Offices(s): Golden Field Office

  20. Rapidly refuelable fuel cell

    DOE Patents [OSTI]

    Joy, Richard W. (Santa Clara, CA)

    1983-01-01

    This invention is directed to a metal-air fuel cell where the consumable metal anode is movably positioned in the cell and an expandable enclosure, or bladder, is used to press the anode into contact with separating spacers between the cell electrodes. The bladder may be depressurized to allow replacement of the anode when consumed.

  1. Network Maps

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Network Maps Engineering Services The Network Network Maps Network Traffic Volume Historical Network Maps Network Facts & Stats Connected Sites Peering Connections ESnet...

  2. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Volume 5: Analysis of core damage frequency from seismic events for plant operational state 5 during a refueling outage

    SciTech Connect (OSTI)

    Budnitz, R.J.; Davis, P.R.; Ravindra, M.K.; Tong, W.H.

    1994-08-01

    In 1989 the US Nuclear Regulatory Commission (NRC) initiated an extensive program to examine carefully the potential risks during low-power and shutdown operations. The program included two parallel projects, one at Sandia National Laboratories studying a boiling water reactor (Grand Gulf), and the other at Brookhaven National Laboratory studying a pressurized water reactor (Surry Unit 1). Both the Sandia and Brookhaven projects have examined only accidents initiated by internal plant faults---so-called ``internal initiators.`` This project, which has explored the likelihood of seismic-initiated core damage accidents during refueling outage conditions, is complementary to the internal-initiator analyses at Brookhaven and Sandia. This report covers the seismic analysis at Grand Gulf. All of the many systems modeling assumptions, component non-seismic failure rates, and human effort rates that were used in the internal-initiator study at Grand Gulf have been adopted here, so that the results of the study can be as comparable as possible. Both the Sandia study and this study examine only one shutdown plant operating state (POS) at Grand Gulf, namely POS 5 representing cold shutdown during a refueling outage. This analysis has been limited to work analogous to a level-1 seismic PRA, in which estimates have been developed for the core-damage frequency from seismic events during POS 5. The results of the analysis are that the core-damage frequency for earthquake-initiated accidents during refueling outages in POS 5 is found to be quite low in absolute terms, less than 10{sup {minus}7}/year.

  3. Network Activity

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Statistics Network Activity Network Activity PDSF Network Uplinks to NERSC (dual 10 Gbps) NERSC Uplink to ESnet Last edited: 2011-03-31 22:20:59...

  4. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Analysis of core damage frequency from internal events for Plant Operational State 5 during a refueling outage. Volume 2, Part 3: Internal Events Appendices I and J

    SciTech Connect (OSTI)

    Yakle, J.; Darby, J.; Whitehead, D.; Staple, B.

    1994-06-01

    This report provides supporting documentation for various tasks associated with the performance of the probablistic risk assessment for Plant Operational State 5 during a refueling outage at Grand Gulf, Unit 1 as documented in Volume 2, Part 1 of NUREG/CR-6143.

  5. The Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Network Engineering Services The Network Network Maps Network Facts & Stats Connected Sites Peering Connections ESnet Site Availabiliy OSCARS Fasterdata IPv6 Network Network Performance Tools The ESnet Engineering Team Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net The Network A Nationwide Platform for Science Discovery The

  6. CX-009426: Categorical Exclusion Determination

    Energy.gov [DOE]

    California State Los Angeles University Auxiliary Services Hydrogen Refueling Facility Performance Evaluation and Optimization CX(s) Applied: A9, B5.22 Date: 10/24/2012 Location(s): California Offices(s): Golden Field Office

  7. CX-100587 Categorical Exclusion Determination | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    7 Categorical Exclusion Determination CX-100587 Categorical Exclusion Determination H2 Refuel H-Prize Selection of Finalist Award Number: NA CX(s) Applied: A9 Fuel Cells Technology ...

  8. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Volume 2, Part 1C: Analysis of core damage frequency from internal events for plant operational State 5 during a refueling outage, Main report (Sections 11--14)

    SciTech Connect (OSTI)

    Whitehead, D.; Darby, J.; Yakle, J.

    1994-06-01

    This document contains the accident sequence analysis of internally initiated events for Grand Gulf, Unit 1 as it operates in the Low Power and Shutdown Plant Operational State 5 during a refueling outage. The report documents the methodology used during the analysis, describes the results from the application of the methodology, and compares the results with the results from two full power analyses performed on Grand Gulf.

  9. Experimental Network Testbeds

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Galleries ESnet Awards and Honors Blog ESnet Live Home Network R&D Experimental Network Testbeds Network R&D Overview Experimental Network Testbeds 100G SDN...

  10. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Evaluation of severe accident risks for plant operational state 5 during a refueling outage. Main report and appendices, Volume 6, Part 1

    SciTech Connect (OSTI)

    Brown, T.D.; Kmetyk, L.N.; Whitehead, D.; Miller, L.; Forester, J.; Johnson, J.

    1995-03-01

    Traditionally, probabilistic risk assessments (PRAS) of severe accidents in nuclear power plants have considered initiating events potentially occurring only during full power operation. Recent studies and operational experience have, however, implied that accidents during low power and shutdown could be significant contributors to risk. In response to this concern, in 1989 the Nuclear Regulatory Commission (NRC) initiated an extensive program to carefully examine the potential risks during low power and shutdown operations. Two plants, Surry (pressurized water reactor) and Grand Gulf (boiling water reactor), were selected as the plants to be studied. The program consists of two parallel projects being performed by Brookhaven National Laboratory (Surry) and Sandia National Laboratories (Grand Gulf). The program objectives include assessing the risks of severe accidents initiated during plant operational states other than full power operation and comparing the estimated risks with the risk associated with accidents initiated during full power operation as assessed in NUREG-1150. The scope of the program is that of a Level-3 PRA. The subject of this report is the PRA of the Grand Gulf Nuclear Station, Unit 1. The Grand Gulf plant utilizes a 3833 MWt BUR-6 boiling water reactor housed in a Mark III containment. The Grand Gulf plant is located near Port Gibson, Mississippi. The regime of shutdown analyzed in this study was plant operational state (POS) 5 during a refueling outage, which is approximately Cold Shutdown as defined by Grand Gulf Technical Specifications. The entire PRA of POS 5 is documented in a multi-volume NUREG report (NUREG/CR-6143). The internal events accident sequence analysis (Level 1) is documented in Volume 2. The Level 1 internal fire and internal flood analyses are documented in Vols 3 and 4, respectively.

  11. Developer Network

    Energy Science and Technology Software Center (OSTI)

    2012-08-21

    NREL's Developer Network, developer.nrel.gov, provides data that users can access to provide data to their own analyses, mobile and web applications. Developers can retrieve the data through a Web services API (application programming interface). The Developer Network handles overhead of serving up web services such as key management, authentication, analytics, reporting, documentation standards, and throttling in a common architecture, while allowing web services and APIs to be maintained and managed independently.

  12. Sentient networks

    SciTech Connect (OSTI)

    Chapline, G.

    1998-03-01

    The engineering problems of constructing autonomous networks of sensors and data processors that can provide alerts for dangerous situations provide a new context for debating the question whether man-made systems can emulate the cognitive capabilities of the mammalian brain. In this paper we consider the question whether a distributed network of sensors and data processors can form ``perceptions`` based on sensory data. Because sensory data can have exponentially many explanations, the use of a central data processor to analyze the outputs from a large ensemble of sensors will in general introduce unacceptable latencies for responding to dangerous situations. A better idea is to use a distributed ``Helmholtz machine`` architecture in which the sensors are connected to a network of simple processors, and the collective state of the network as a whole provides an explanation for the sensory data. In general communication within such a network will require time division multiplexing, which opens the door to the possibility that with certain refinements to the Helmholtz machine architecture it may be possible to build sensor networks that exhibit a form of artificial consciousness.

  13. Neural Networks

    SciTech Connect (OSTI)

    Smith, Patrick I.

    2003-09-23

    Physicists use large detectors to measure particles created in high-energy collisions at particle accelerators. These detectors typically produce signals indicating either where ionization occurs along the path of the particle, or where energy is deposited by the particle. The data produced by these signals is fed into pattern recognition programs to try to identify what particles were produced, and to measure the energy and direction of these particles. Ideally, there are many techniques used in this pattern recognition software. One technique, neural networks, is particularly suitable for identifying what type of particle caused by a set of energy deposits. Neural networks can derive meaning from complicated or imprecise data, extract patterns, and detect trends that are too complex to be noticed by either humans or other computer related processes. To assist in the advancement of this technology, Physicists use a tool kit to experiment with several neural network techniques. The goal of this research is interface a neural network tool kit into Java Analysis Studio (JAS3), an application that allows data to be analyzed from any experiment. As the final result, a physicist will have the ability to train, test, and implement a neural network with the desired output while using JAS3 to analyze the results or output. Before an implementation of a neural network can take place, a firm understanding of what a neural network is and how it works is beneficial. A neural network is an artificial representation of the human brain that tries to simulate the learning process [5]. It is also important to think of the word artificial in that definition as computer programs that use calculations during the learning process. In short, a neural network learns by representative examples. Perhaps the easiest way to describe the way neural networks learn is to explain how the human brain functions. The human brain contains billions of neural cells that are responsible for processing

  14. Historical Network Maps

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Network Maps Network Traffic Volume Historical Network Maps Network Facts & Stats Connected Sites Peering Connections ESnet Site Availabiliy OSCARS Fasterdata IPv6 Network Network Performance Tools The ESnet Engineering Team Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Science Engagement Move your data Programs & Workshops Science

  15. Nothing But Networking for Residential Network Members | Department...

    Energy Savers

    Nothing But Networking for Residential Network Members Nothing But Networking for Residential Network Members Better Buildings Residential Network Peer Exchange Call: Nothing But ...

  16. HPSS Yearly Network Traffic

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    HPSS Yearly Network Traffic HPSS Yearly Network Traffic Yearly Summary of IO Traffic Between Storage and Network Destinations These bar charts show the total transfer traffic for...

  17. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons...

    Energy.gov (indexed) [DOE]

    fry.pdf (257.11 KB) More Documents & Publications HYDROGEN TO THE HIGHWAYS NREL Alt Fuel Lessons Learned: Hydrogen Infrastructure Safety Analysis of Type 4 Tanks in CNG Vehicles

  18. ReFuel America | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    NewGen Technologies, focused on providing advanced fuels with increased performance and decreased harmful emissions for all petroleum engine use. Coordinates:...

  19. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons...

    Energy.gov (indexed) [DOE]

    Moderator: Stefan Unnasch, Life Cycle Associates, Innovation and Coordination (PDF 484 KB) Minnesota E85 Test Market (PDF 1.4 MB), Tim Gerlach, American Lung Association of the ...

  20. Hydrogen Vehicles and Refueling Infrastructure in India

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    HYDROGEN VEHICLES AND FUELLING INFRASTRUCTURE IN INDIA Prof. L. M. Das Centre for Energy Studies Indian Institute of Technology Delhi INDIA " The earth was not given to us by our parents , it has been loaned to us by our children" Kenyan Proverb Same feeling exists in all societies Our moral responsibility---to handover a safer earth to future generation IIT Delhi August 18, 2004 -:Hydrogen:- Not a Radically New Concept JULES VERNE Mysterious Island (1876) ...." I believe that

  1. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... retail hydrogen stations. Industrial gas companies or other hydrogen equipment suppliers have less access to capital than energy companies and lack expertise with retail stations. ...

  2. EIA - Natural Gas Pipeline Network - Network Configuration &...

    U.S. Energy Information Administration (EIA) (indexed site)

    Network Configuration & System Design About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Network Configuration and ...

  3. NetworkX

    Energy Science and Technology Software Center (OSTI)

    2004-05-17

    NetworkX (abbreviated NX in the software and documentation) is a package for studying network structure using graph theory.

  4. Groundwater Monitoring Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Groundwater Monitoring Network Groundwater Monitoring Network The network includes 92 natural sources, 102 regional aquifer wells, 41 intermediate-depth wells and springs, and 67 wells in alluvium in canyons. August 1, 2013 Map of LANL's groundwater monitoring network Map of LANL's groundwater monitoring network

  5. Interconnection networks

    DOE Patents [OSTI]

    Faber, V.; Moore, J.W.

    1988-06-20

    A network of interconnected processors is formed from a vertex symmetric graph selected from graphs GAMMA/sub d/(k) with degree d, diameter k, and (d + 1)exclamation/ (d /minus/ k + 1)exclamation processors for each d greater than or equal to k and GAMMA/sub d/(k, /minus/1) with degree d /minus/ 1, diameter k + 1, and (d + 1)exclamation/(d /minus/ k + 1)exclamation processors for each d greater than or equal to k greater than or equal to 4. Each processor has an address formed by one of the permutations from a predetermined sequence of letters chosen a selected number of letters at a time, and an extended address formed by appending to the address the remaining ones of the predetermined sequence of letters. A plurality of transmission channels is provided from each of the processors, where each processor has one less channel than the selected number of letters forming the sequence. Where a network GAMMA/sub d/(k, /minus/1) is provided, no processor has a channel connected to form an edge in a direction delta/sub 1/. Each of the channels has an identification number selected from the sequence of letters and connected from a first processor having a first extended address to a second processor having a second address formed from a second extended address defined by moving to the front of the first extended address the letter found in the position within the first extended address defined by the channel identification number. The second address is then formed by selecting the first elements of the second extended address corresponding to the selected number used to form the address permutations. 9 figs.

  6. Valley Entrepreneurs' Network (VEN) Monthly Network Meeting

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    VEN Monthly Network Meeting Valley Entrepreneurs' Network (VEN) Monthly Network Meeting WHEN: Mar 05, 2015 5:30 PM - 7:00 PM WHERE: Anthony's At the Delta North Paseo De Onate, Española, NM CATEGORY: Community INTERNAL: Calendar Login Event Description An evening of exciting enterprise networking with like-minded entrepreneurs. For more information, contact Alejandro, VEN Coordinator, at (505) 410-0959

  7. Damselfly Network Simulator

    Energy Science and Technology Software Center (OSTI)

    2014-04-01

    Damselfly is a model-based parallel network simulator. It can simulate communication patterns of High Performance Computing applications on different network topologies. It outputs steady-state network traffic for a communication pattern, which can help in studying network congestion and its impact on performance.

  8. HPSS Yearly Network Traffic

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    HPSS Yearly Network Traffic HPSS Yearly Network Traffic Yearly Summary of I/O Traffic Between Storage and Network Destinations These bar charts show the total transfer traffic for each year between storage and network destinations (systems within and outside of NERSC). Traffic for the current year is an estimate derived by scaling the known months traffic up to 12 months. The years shown are calendar years. The first graph shows the overall growth in network traffic to storage over the years.

  9. Network II Database

    Energy Science and Technology Software Center (OSTI)

    1994-11-07

    The Oak Ridge National Laboratory (ORNL) Rail and Barge Network II Database is a representation of the rail and barge system of the United States. The network is derived from the Federal Rail Administration (FRA) rail database.

  10. Class network routing

    DOE Patents [OSTI]

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

    2009-09-08

    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.

  11. Virtualized Network Control (VNC)

    SciTech Connect (OSTI)

    Lehman, Thomas; Guok, Chin; Ghani, Nasir

    2013-01-31

    The focus of this project was on the development of a "Network Service Plane" as an abstraction model for the control and provisioning of multi-layer networks. The primary motivation for this work were the requirements of next generation networked applications which will need to access advanced networking as a first class resource at the same level as compute and storage resources. A new class of "Intelligent Network Services" were defined in order to facilitate the integration of advanced network services into application specific workflows. This new class of network services are intended to enable real-time interaction between the application co-scheduling algorithms and the network for the purposes of workflow planning, real-time resource availability identification, scheduling, and provisioning actions.

  12. Energy Efficient Digital Networks

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Efficient Digital Networks Rich Brown Lawrence Berkeley National Laboratory Presentation to DOE State Energy Advisory Board Meeting August 14, 2007 REBrown@LBL.gov - efficientnetworks.LBL.gov Overview * Background on Electronics and Digital Networks * LBNL Project: "Energy Efficient Digital Networks * Future Directions Electronics and Networks * Electronics are an end-use of electricity -"Devices whose primary function is Information (obtain, store, manage, present)" -Includes

  13. Science-Driven Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Science-Driven Network Requirements for ESnet Update to the 2002 Office of Science Networking Requirements Workshop Report February 21, 2006 1-1 Science-Driven Network Requirements for ESnet Update to the 2002 Office of Science Networking Requirements Workshop Report February 21, 2006 Contributors Paul Adams, LBNL (Advanced Light Source) Shane Canon, ORNL (NLCF) Steven Carter, ORNL (NLCF) Brent Draney, LBNL (NERSC) Martin Greenwald, MIT (Magnetic Fusion Energy) Jason Hodges, ORNL (Spallation

  14. BER Science Network Requirements

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Network Requirements Report of the Biological and Environmental Research Network Requirements Workshop Conducted July 26 and 27, 2007 BER Science Network Requirements Workshop Biological and Environmental Research Program Office, DOE Office of Science Energy Sciences Network Bethesda, MD - July 26 and 27, 2007 ESnet is funded by the US Dept. of Energy, Office of Science, Advanced Scientific Computing Research (ASCR) program. Dan Hitchcock is the ESnet Program Manager. ESnet is operated by

  15. BES Science Network Requirements

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Network Requirements Report of the Basic Energy Sciences Network Requirements Workshop Conducted June 4-5, 2007 BES Science Network Requirements Workshop Basic Energy Sciences Program Office, DOE Office of Science Energy Sciences Network Washington, DC - June 4 and 5, 2007 ESnet is funded by the US Dept. of Energy, Office of Science, Advanced Scientific Computing Research (ASCR) program. Dan Hitchcock is the ESnet Program Manager. ESnet is operated by Lawrence Berkeley National Laboratory, which

  16. Evangelos Chaniotakis, Network Engineer

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Evangelos Chaniotakis About ESnet Our Mission The Network ESnet History Governance & Policies Career Opportunities ESnet Staff & Org Chart ESnet Leadership Administration Advanced Network Technologies Cybersecurity Infrastructure, Identity & Collaboration Network Engineering Network Planning Operational Enhancements Office of the CTO Science Engagement Tools Team Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600

  17. Nothing But Networking for Residential Network Members | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Nothing But Networking for Residential Network Members Nothing But Networking for Residential Network Members Better Buildings Residential Network Peer Exchange Call: Nothing But Networking for Residential Network Members, Call Slides and Discussion Summary, March 12, 2015. Call Slides and Discussion Summary (733 KB) More Documents & Publications Better Buildings Residential Network Orientation Webinar Community Organizing and Outreach Outreach to Multifamily Landlords and Tenants

  18. Calorimetry Network Program

    Energy Science and Technology Software Center (OSTI)

    1998-01-30

    This is a Windows NT based program to run the SRTC designed calorimeters. The network version can communicate near real time data and final data values over the network. This version, due to network specifics, can function in a stand-alone operation also.

  19. Metallic nanowire networks

    DOE Patents [OSTI]

    Song, Yujiang; Shelnutt, John A.

    2012-11-06

    A metallic nanowire network synthesized using chemical reduction of a metal ion source by a reducing agent in the presence of a soft template comprising a tubular inverse micellar network. The network of interconnected polycrystalline nanowires has a very high surface-area/volume ratio, which makes it highly suitable for use in catalytic applications.

  20. Enerlogics Networks | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Networks Name: Enerlogics Networks Place: Pittsburgh, Pennsylvania Product: buidling automation control systems to utility software solutions to telecommunication systems...

  1. Internet protocol network mapper

    DOE Patents [OSTI]

    Youd, David W.; Colon III, Domingo R.; Seidl, Edward T.

    2016-02-23

    A network mapper for performing tasks on targets is provided. The mapper generates a map of a network that specifies the overall configuration of the network. The mapper inputs a procedure that defines how the network is to be mapped. The procedure specifies what, when, and in what order the tasks are to be performed. Each task specifies processing that is to be performed for a target to produce results. The procedure may also specify input parameters for a task. The mapper inputs initial targets that specify a range of network addresses to be mapped. The mapper maps the network by, for each target, executing the procedure to perform the tasks on the target. The results of the tasks represent the mapping of the network defined by the initial targets.

  2. STEAB Resolution 06-02

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of the necessary alternative fuels refueling network by focusing on three primary tasks: Turn to State Energy Offices (SEO) and Non-governmental Organizations (NGO) (e.g. ...

  3. Reconfigureable network node

    DOE Patents [OSTI]

    Vanderveen, Keith B.; Talbot, Edward B.; Mayer, Laurence E.

    2008-04-08

    Nodes in a network having a plurality of nodes establish communication links with other nodes using available transmission media, as the ability to establish such links becomes available and desirable. The nodes predict when existing communications links will fail, become overloaded or otherwise degrade network effectiveness and act to establish substitute or additional links before the node's ability to communicate with the other nodes on the network is adversely affected. A node stores network topology information and programmed link establishment rules and criteria. The node evaluates characteristics that predict existing links with other nodes becoming unavailable or degraded. The node then determines whether it can form a communication link with a substitute node, in order to maintain connectivity with the network. When changing its communication links, a node broadcasts that information to the network. Other nodes update their stored topology information and consider the updated topology when establishing new communications links for themselves.

  4. Seven Deadliest Network Attacks

    SciTech Connect (OSTI)

    Prowell, Stacy J; Borkin, Michael; Kraus, Robert

    2010-05-01

    Do you need to keep up with the latest hacks, attacks, and exploits effecting networks? Then you need "Seven Deadliest Network Attacks". This book pinpoints the most dangerous hacks and exploits specific to networks, laying out the anatomy of these attacks including how to make your system more secure. You will discover the best ways to defend against these vicious hacks with step-by-step instruction and learn techniques to make your computer and network impenetrable. Attacks detailed in this book include: Denial of Service; War Dialing; Penetration 'Testing'; Protocol Tunneling; Spanning Tree Attacks; Man-in-the-Middle; and, Password Replay. Knowledge is power, find out about the most dominant attacks currently waging war on computers and networks globally. Discover the best ways to defend against these vicious attacks; step-by-step instruction shows you how. Institute countermeasures, don't be caught defenseless again, learn techniques to make your computer and network impenetrable.

  5. National Highway Planning Network

    Energy Science and Technology Software Center (OSTI)

    1992-02-02

    NHPN, the National Highway Planning Network, is a database of major highways in the continental United States that is used for national-level analyses of highway transportation issues that require use of a network, such as studies of highway performance, network design, social and environmental impacts of transportation, vehicle routing and scheduling, and mapping. The network is based on a set of roadways digitized by the U. S. Geological Survey (USGS) from the 1980 National Atlasmore » and has been enhanced with additional roads, attribute detail, and topological error corrections to produce a true analytic network. All data have been derived from or checked against information obtained from state and Federal governmental agencies. Two files comprise this network: one describing links and the other nodes. This release, NHPN1.0, contains 44,960 links and 28,512 nodes representing approximately 380,000 miles of roadway.« less

  6. Rooftop Unit Network Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    part load performance - equipment maintenance * RTUs cannot easily interact with the ... Diagnostics - RTU Network Platform * Smart Monitoring and Diagnostics - Cloud * Autonomous ...

  7. battery electrode percolating network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    battery electrode percolating network - Sandia Energy Energy Search Icon Sandia Home ... Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel ...

  8. Energy Sciences Network (ESnet)

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    making it the standard for research institutions today. Read More ESnet Releases Open Source Software from MyESnet Portal for Building Online Interactive Network Portals ESnet...

  9. CX-009190: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    (0672-1502) General Electric Global Research (GE) - Chilled Natural Gas for At-Home Refueling CX(s) Applied: B3.6 Date: 09/05/2012 Location(s): New York, New York, Missouri Offices(s): Advanced Research Projects Agency-Energy

  10. CX-009192: Categorical Exclusion Determination

    Energy.gov [DOE]

    (0672-1610) Eaton Corporation - Highly Efficient, Near-Isothermal Liquid-Piston Compressor for Low Cost At-Home Natural Gas Refueling CX(s) Applied: B3.6 Date: 08/22/2012 Location(s): Michigan, Minnesota, Minnesota, Wisconsin Offices(s): Advanced Research Projects Agency-Energy

  11. Better Buildings Residential Network | Department of Energy

    Energy Savers

    Residential Buildings Better Buildings Residential Network Better Buildings Residential Network Better Buildings Residential Network Explore Latest Peer Exchange Call Summaries ...

  12. Solar Training Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Soft Costs Solar Training Network Solar Training Network Solar Training Network The Solar Training Network addresses a critical need for high-quality, local, accessible training ...

  13. Form:Networking Organization | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Networking Organization Jump to: navigation, search Add a Networking Organization Input your networking organization name below to add to the registry. If your networking...

  14. Solar Training Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Training Network Solar Training Network Solar Training Network The Solar Training Network addresses a critical need for high-quality, local, accessible training in solar ...

  15. Collective network routing

    DOE Patents [OSTI]

    Hoenicke, Dirk

    2014-12-02

    Disclosed are a unified method and apparatus to classify, route, and process injected data packets into a network so as to belong to a plurality of logical networks, each implementing a specific flow of data on top of a common physical network. The method allows to locally identify collectives of packets for local processing, such as the computation of the sum, difference, maximum, minimum, or other logical operations among the identified packet collective. Packets are injected together with a class-attribute and an opcode attribute. Network routers, employing the described method, use the packet attributes to look-up the class-specific route information from a local route table, which contains the local incoming and outgoing directions as part of the specifically implemented global data flow of the particular virtual network.

  16. Residential Network Members Unite to Form Green Bank Network...

    Energy.gov (indexed) [DOE]

    The NY Green Bank logo. Residential Network members Connecticut Green Bank and NY Green Bank, a division of Residential Network member New York State Energy Research and ...

  17. BES Science Network Requirements

    SciTech Connect (OSTI)

    Biocca, Alan; Carlson, Rich; Chen, Jackie; Cotter, Steve; Tierney, Brian; Dattoria, Vince; Davenport, Jim; Gaenko, Alexander; Kent, Paul; Lamm, Monica; Miller, Stephen; Mundy, Chris; Ndousse, Thomas; Pederson, Mark; Perazzo, Amedeo; Popescu, Razvan; Rouson, Damian; Sekine, Yukiko; Sumpter, Bobby; Dart, Eli; Wang, Cai-Zhuang -Z; Whitelam, Steve; Zurawski, Jason

    2011-02-01

    The Energy Sciences Network (ESnet) is the primary provider of network connectivityfor the US Department of Energy Office of Science (SC), the single largest supporter of basic research in the physical sciences in the United States. In support of the Office ofScience 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.

  18. Thermal network reduction

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-01-01

    A method is presented for reducing the number of elements required in a thermal network representation of a building. The method is based on matching the actual building response at two frequencies, the diurnal response and 3-day response. The procedure provides a straightforward methodology for combining all the various materials inside a discrete building zone into a few nodes while retaining a high degree of accuracy in the dynamic response. An example is given showing a comparison between a large network and the reduced network.

  19. Thermal network reduction

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-06-01

    A method is presented for reducing the number of elements required in a thermal network representation of a building. The method is based on matching the actual building response at two frequencies, the diurnal response and 3-day response. The procedure provides a straightforward methodology for combining all the various materials inside a discrete building zone into a few nodes while retaining a high degree of accuracy in the dynamic response. An example is given showing a comparison between a large network and the reduced network.

  20. Networking and Application Strategies

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Networking and Application Strategies Networking and Application Strategies Los Alamos Lab recruits the best minds on the planet and offers job search information and assistance to our dual career spouses or partners. Contact Us dualcareers@lanl.gov You know more people than you think you do Having strong existing connections and building new ones is essential to finding a job-especially for a dual career family that is new to the Los Alamos area. Networking is a proven and effective way to

  1. Exploiting Network Parallelism

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Research and Education (R&E) backbones, including the Energy Sciences Network and Internet... GridFTP extensions provide for, among other things, striping (i.e., the use of multiple ...

  2. NP Science Network Requirements

    SciTech Connect (OSTI)

    Dart, Eli; Rotman, Lauren; Tierney, Brian

    2011-08-26

    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. To support SC programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In August 2011, ESnet and the Office of Nuclear Physics (NP), of the DOE SC, organized a workshop to characterize the networking requirements of the programs funded by NP. The requirements identified at the workshop are summarized in the Findings section, and are described in more detail in the body of the report.

  3. Energy Materials Network Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    30 th , 2016 2 MGI - Framework New Material Innovations for Clean Energy 2X Faster and 2X Cheaper Predictive Simulation Across Scales Synthesis & Characterization Rapid Screening End Use Performance Process Scalability Process Control Real-time Characterization Reliability Validation Data Management & Informatics Coordinated resource network with a suite of capabilities for advanced materials R&D In Support of the Materials Genome Initiative (MGI) 3 Network Requirements 1. WORLD

  4. Network Requirements Reviews

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Reviews Science Engagement Move your data Programs & Workshops Science Requirements Reviews Network Requirements Reviews Documents and Background Materials FAQ for Case Study Authors BER Requirements Review 2015 ASCR Requirements Review 2015 Previous Reviews Requirements Review Reports Case Studies Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site

  5. Software-Defined Networking (SDN)

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ENOS Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies News & Publications ESnet News Publications and Presentations Galleries ESnet Awards and Honors Blog ESnet Live Home » Network R&D » Software-Defined Networking (SDN) Network R&D Software-Defined Networking (SDN) ENOS Experimental

  6. ESnet Network Operating System (ENOS)

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ENOS Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies News & Publications ESnet News Publications and Presentations Galleries ESnet Awards and Honors Blog ESnet Live Home » Network R&D » Software-Defined Networking (SDN) » ENOS Network R&D Software-Defined Networking (SDN) ENOS

  7. High Density Sensor Network Development | The Ames Laboratory

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    High Density Sensor Network Development

  8. Network topology mapper

    DOE Patents [OSTI]

    Quist, Daniel A.; Gavrilov, Eugene M.; Fisk, Michael E.

    2008-01-15

    A method enables the topology of an acyclic fully propagated network to be discovered. A list of switches that comprise the network is formed and the MAC address cache for each one of the switches is determined. For each pair of switches, from the MAC address caches the remaining switches that see the pair of switches are located. For each pair of switches the remaining switches are determined that see one of the pair of switches on a first port and the second one of the pair of switches on a second port. A list of insiders is formed for every pair of switches. It is determined whether the insider for each pair of switches is a graph edge and adjacent ones of the graph edges are determined. A symmetric adjacency matrix is formed from the graph edges to represent the topology of the data link network.

  9. Self-Configuring Network Monitor

    Energy Science and Technology Software Center (OSTI)

    2004-05-01

    Self-Configuring Network Monitor (SCNM) is a passive monitoring that can collect packet headers from any point in a network path. SCNM uses special activation packets to automatically activate monitors deployed at the layer three ingress and egress routers of the wide-area network, and at critical points within the site networks. Monitoring output data is sent back to the application data source or destination host. No modifications are required to the application or network routing infrastructuremore » in order to activate monitoring of traffic for an application. This ensures that the monitoring operation does not add a burden to the networks administrator.« less

  10. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen

    Office of Energy Efficiency and Renewable Energy (EERE)

    On April 2-3, 2008, participants from industry, government agencies, universities, and national laboratories participated in a workshop to review lessons learned from efforts to commercialize...

  11. H2 Refueling Infrastructure: Accelerating Electric Drives: The...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    " 1. Natural gas reforming + CCUS 2. Water electrolysis (renewable, nuclear) 3. Biomass gasification 4. Biogas reforming A commitment to meet both environmental requirements and ...

  12. Hydraulically refueled battery employing a packed bed metal particle electrode

    DOE Patents [OSTI]

    Siu, Stanley C. (Castro Valley, CA); Evans, James W. (Piedmont, CA)

    1998-01-01

    A secondary zinc air cell, or another selected metal air cell, employing a spouted/packed metal particle bed and an air electrode. More specifically, two embodiments of a cell, one that is capable of being hydraulically recharged, and a second that is capable of being either hydraulically or electrically recharged. Additionally, each cell includes a sloped bottom portion to cause stirring of the electrolyte/metal particulate slurry when the cell is being hydraulically emptied and refilled during hydraulically recharging of the cell.

  13. Refueling Behavior of Flexible Fuel Vehicle Drivers in the Federal...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    specific commercial product, process, or ... environmental sustainability. Section 701 of the Energy Policy Act (EPAct) 2005 ... at a variety of metrics: percent growth in ...

  14. Refueling Infrastructure for Alternative Fuel Vehicles: Lessons Learned for Hydrogen

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lessons Learned for Hydrogen Dean Fry, BP April 3, 2008 This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 UNITED STATES Department of Energy Infrastructure Lessons Learned Fueling Station Location and Customer Selection Coordination between the OEM and Hydrogen Station Developer is crucial for optimal selection of sites / customers ISSUE Suboptimal site selection has resulted in low station utilization SOLUTIONS Clear understanding /

  15. Evaluating the Safety of a Natural Gas Home Refueling Appliance...

    Alternative Fuels and Advanced Vehicles Data Center

    used for other natural gas household appliances such as water heaters and clothes dryers. ... Experience with water heaters and other garage-installed natural gas Evaluating the Safety ...

  16. Network resilience; A measure of network fault tolerance

    SciTech Connect (OSTI)

    Najjar, W. . Dept. of Computer Science); Gaudoit, J.L. . Dept. of Electrical Engineering)

    1990-02-01

    The failure of a node in a multicomputer system will not only reduce the computational power but also alter the network's topology. Network fault tolerance is a measure of the number of failures the network can sustain before a disconnection occurs. It is expressed traditionally as the network's node degree. In this paper, the authors propose a probabilistic measure of network fault tolerance expressed as the probability f a disconnection. Qualitative evaluation of this measure is presented. As expected, the single-node disconnection probability is the dominant factor irrespective of the topology under consideration. They derive an analytical approximation of the disconnection probability and verify it with Monte Carlo simulation. Based on this model, the measures of network resilience and relative network resilience are proposed as probabilistic measures of network fault tolerance. These are then used to evaluate the effects of the disconnection probability on the reliability of the system.

  17. ASCR Science Network Requirements

    SciTech Connect (OSTI)

    Dart, Eli; Tierney, Brian

    2009-08-24

    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

  18. Northwest Biodiesel Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Biodiesel Network Jump to: navigation, search Logo: Northwest Biodiesel Network Name: Northwest Biodiesel Network Address: 6532 Phinney Ave N Place: Seattle, Washington Zip: 98103...

  19. Sustainable Agriculture Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Agriculture Network Jump to: navigation, search Logo: Sustainable Agriculture Network Name: Sustainable Agriculture Network Website: clima.sanstandards.org References: Sustainable...

  20. Clean Economy Network Foundation | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Clean Economy Network Foundation Jump to: navigation, search Logo: Clean Economy Network Foundation Name: Clean Economy Network Foundation Address: 1301 Pennsylvania Ave NW, Suite...

  1. Energy Materials Network Workshop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Materials Network Workshop Energy Materials Network Workshop The Energy Materials ... Energy Materials Network - Solar Presentation (3.5 MB) More Documents & Publications Call ...

  2. Vehicle Technologies Office: National Idling Reduction Network...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    National Idling Reduction Network News Archives Vehicle Technologies Office: National Idling Reduction Network News Archives The National Idling Reduction Network brings together ...

  3. Benefits of Better Buildings Residential Network Reporting |...

    Energy Savers

    Benefits of Better Buildings Residential Network Reporting Benefits of Better Buildings Residential Network Reporting Better Buildings Residential Network All-Member Peer Exchange ...

  4. Residential Network Members Unite to Form Green Bank Network

    Energy.gov [DOE]

    Residential Network members Connecticut Green Bank and NY Green Bank, a division of Residential Network member New York State Energy Research and Development Authority, have helped launch the Green Bank Network, a new international organization focused on collaborating to scale up private financing to meet the challenge of climate change.

  5. Microsystem process networks

    SciTech Connect (OSTI)

    Wegeng, Robert S.; TeGrotenhuis, Ward E.; Whyatt, Greg A.

    2006-10-24

    Various aspects and applications of microsystem process networks are described. The design of many types of microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having exergetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

  6. BER Science Network Requirements

    SciTech Connect (OSTI)

    Alapaty, Kiran; Allen, Ben; Bell, Greg; Benton, David; Brettin, Tom; Canon, Shane; Dart, Eli; Cotter, Steve; Crivelli, Silvia; Carlson, Rich; Dattoria, Vince; Desai, Narayan; Egan, Richard; Tierney, Brian; Goodwin, Ken; Gregurick, Susan; Hicks, Susan; Johnston, Bill; de Jong, Bert; Kleese van Dam, Kerstin; Livny, Miron; Markowitz, Victor; McGraw, Jim; McCord, Raymond; Oehmen, Chris; Regimbal, Kevin; Shipman, Galen; Strand, Gary; Flick, Jeff; Turnbull, Susan; Williams, Dean; Zurawski, Jason

    2010-11-01

    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 2010 ESnet and the Office of Biological and Environmental Research, of the DOE Office of Science, organized a workshop to characterize the networking requirements of the science programs funded by BER. The requirements identified at the workshop are summarized and described in more detail in the case studies and the Findings section. A number of common themes emerged from the case studies and workshop discussions. One is that BER science, like many other disciplines, is becoming more and more distributed and collaborative in nature. Another common theme is that data set sizes are exploding. Climate Science in particular is on the verge of needing to manage exabytes of data, and Genomics is on the verge of a huge paradigm shift in the number of sites with sequencers and the amount of sequencer data being generated.

  7. Microsystem process networks

    DOE Patents [OSTI]

    Wegeng, Robert S [Richland, WA; TeGrotenhuis, Ward E [Kennewick, WA; Whyatt, Greg A [West Richland, WA

    2010-01-26

    Various aspects and applications or microsystem process networks are described. The design of many types of microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having energetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

  8. Microsystem process networks

    DOE Patents [OSTI]

    Wegeng, Robert S.; TeGrotenhuis, Ward E.; Whyatt, Greg A.

    2007-09-18

    Various aspects and applications of microsystem process networks are described. The design of many types of Microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having energetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

  9. Transactional Network Platform: Applications

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Lutes, Robert G.; Ngo, Hung; Underhill, Ronald M.

    2013-10-31

    In FY13, Pacific Northwest National Laboratory (PNNL) with funding from the Department of Energy’s (DOE’s) Building Technologies Office (BTO) designed, prototyped and tested a transactional network platform to support energy, operational and financial transactions between any networked entities (equipment, organizations, buildings, grid, etc.). Initially, in FY13, the concept demonstrated transactions between packaged rooftop air conditioners and heat pump units (RTUs) and the electric grid using applications or "agents" that reside on the platform, on the equipment, on a local building controller or in the Cloud. The transactional network project is a multi-lab effort with Oakridge National Laboratory (ORNL) and Lawrence Berkeley National Laboratory (LBNL) also contributing to the effort. PNNL coordinated the project and also was responsible for the development of the transactional network (TN) platform and three different applications associated with RTUs. This document describes two applications or "agents" in details, and also summarizes the platform. The TN platform details are described in another companion document.

  10. Software Defined Networking (SDN) Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Software Defined Networking (SDN) Project Energy sector-focused SDN flow controller to manage control system networks centrally and securely Background Traditional information technology (IT) approaches to network administration and packet delivery are not always appropriate for electric industry applications. The nondeterministic latency and configuration complexity make network design difficult for the deterministic, static control systems of the energy sector. In the electric industry, it is

  11. Multiple network interface core apparatus and method

    DOE Patents [OSTI]

    Underwood, Keith D.; Hemmert, Karl Scott

    2011-04-26

    A network interface controller and network interface control method comprising providing a single integrated circuit as a network interface controller and employing a plurality of network interface cores on the single integrated circuit.

  12. Better Buildings Network View | January 2015

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  13. Instructions for Using Virtual Private Network (VPN)

    Energy.gov [DOE]

    Virtual Private Network (VPN) provides access to network drives and is recommended for use only from a EITS provided laptop.

  14. Better Buildings Network View | November 2015

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  15. Renewable Energy Nongovernmental Organization Network (RENOVE...

    Open Energy Information (Open El) [EERE & EIA]

    Nongovernmental Organization Network (RENOVE) Jump to: navigation, search Name: Renewable Energy Nongovernmental Organization Network (RENOVE) Place: Brasilia, Brazil Phone Number:...

  16. Better Buildings Network View | October 2014

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  17. Better Buildings Network View | April 2015

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  18. Better Buildings Network View | March 2015

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  19. Better Buildings Network View | February 2015

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  20. Better Buildings Network View | December 2014

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  1. Better Buildings Network View | June 2014

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  2. Better Buildings Network View | May 2015

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  3. Better Buildings Network View | June 2015

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  4. Better Buildings Network View | October 2015

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  5. Better Buildings Network View | January 2016

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  6. Better Buildings Network View | February 2016

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  7. Better Buildings Network View | January 2014

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  8. Better Buildings Network View | May 2014

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  9. Modular sensor network node

    DOE Patents [OSTI]

    Davis, Jesse Harper Zehring; Stark, Jr., Douglas Paul; Kershaw, Christopher Patrick; Kyker, Ronald Dean

    2008-06-10

    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.

  10. Bicriteria network design problems

    SciTech Connect (OSTI)

    Marathe, M.V.; Ravi, R.; Sundaram, R.; Ravi, S.S.; Rosenkrantz, D.J.; Hunt, H.B. III

    1997-11-20

    The authors study a general class of bicriteria network design problems. A generic problem in this class is as follows: Given an undirected graph and two minimization objectives (under different cost functions), with a budget specified on the first, find a subgraph from a given subgraph class that minimizes the second objective subject to the budget on the first. They consider three different criteria -- the total edge cost, the diameter and the maximum degree of the network. Here, they present the first polynomial-time approximation algorithms for a large class of bicriteria network design problems for the above mentioned criteria. The following general types of results are presented. First, they develop a framework for bicriteria problems and their approximations. Second, when the two criteria are the same they present a black box parametric search technique. This black box takes in as input an (approximation) algorithm for the criterion situation and generates an approximation algorithm for the bicriteria case with only a constant factor loss in the performance guarantee. Third, when the two criteria are the diameter and the total edge costs they use a cluster based approach to devise approximation algorithms. The solutions violate both the criteria by a logarithmic factor. Finally, for the class of treewidth-bounded graphs, they provide pseudopolynomial-time algorithms for a number of bicriteria problems using dynamic programming. The authors show how these pseudopolynomial-time algorithms can be converted to fully polynomial-time approximation schemes using a scaling technique.

  11. Insecurity of Wireless Networks

    SciTech Connect (OSTI)

    Sheldon, Frederick T; Weber, John Mark; Yoo, Seong-Moo; Pan, W. David

    2012-01-01

    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.

  12. The international RESPO network

    SciTech Connect (OSTI)

    1997-12-01

    Winrock International, with sponsorship from the Center for Environment of the U.S. Agency for International Development (USAID) and the U.S. Export Council for Renewable Energy (US/ECRE), is building a global network of non-governmental organizations to help catalyze the use of renewable energy technologies for rural energy supply in developing countries. Known as the Renewable Energy Project Support Offices (REPSOs), these in-country facilities are managed by local institutions in coordination with Winrock. REPSOs provide an array of technical and financial support services to help developers identify and evaluate opportunities for renewable energy projects.

  13. Computer Networking Group | Stanford Synchrotron Radiation Lightsource

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Networking Group Do you need help? For assistance please submit a CNG Help Request ticket. CNG Logo Chris Ramirez SSRL Computer and Networking Group (650) 926-2901 | email Jerry Camuso SSRL Computer and Networking Group (650) 926-2994 | email Networking Support The Networking group provides connectivity and communications services for SSRL. The services provided by the Networking Support Group include: Local Area Network support for cable and wireless connectivity. Installation and maintenance

  14. Operating Innovative Networks Workshop Series

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Operating Innovative Networks Workshop Series Science Engagement Move your data Programs & Workshops CrossConnects Workshop Series Operating Innovative Networks Workshop Series Enlighten Your Research Global Program Science Requirements Reviews Case Studies Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Operating Innovative

  15. United States National Seismographic Network

    SciTech Connect (OSTI)

    Buland, R.

    1993-09-01

    The concept of a United States National Seismograph Network (USNSN) dates back nearly 30 years. The idea was revived several times over the decades. but never funded. For, example, a national network was proposed and discussed at great length in the so called Bolt Report (U. S. Earthquake Observatories: Recommendations for a New National Network, National Academy Press, Washington, D.C., 1980, 122 pp). From the beginning, a national network was viewed as augmenting and complementing the relatively dense, predominantly short-period vertical coverage of selected areas provided by the Regional Seismograph Networks (RSN`s) with a sparse, well-distributed network of three-component, observatory quality, permanent stations. The opportunity finally to begin developing a national network arose in 1986 with discussions between the US Geological Survey (USGS) and the Nuclear Regulatory Commission (NRC). Under the agreement signed in 1987, the NRC has provided $5 M in new funding for capital equipment (over the period 1987-1992) and the USGS has provided personnel and facilities to develop. deploy, and operate the network. Because the NRC funding was earmarked for the eastern United States, new USNSN station deployments are mostly east of 105{degree}W longitude while the network in the western United States is mostly made up of cooperating stations (stations meeting USNSN design goals, but deployed and operated by other institutions which provide a logical extension to the USNSN).

  16. Software Defined Networking (SDN) Project

    Energy.gov (indexed) [DOE]

    Project Description This project is developing an energy ... appliances. The SDN abstracts the network into three ... May 2015 Figure 1: SDN Applications Phase 1: Research and ...

  17. Regional Networks for Energy Efficiency

    Energy.gov [DOE]

    Better Buildings Neighborhood Program Sustainability Peer Exchange Call: Regional Networks for Energy Efficiency, call slides and discussion summary, December 6, 2012.

  18. Network interdiction with budget constraints

    SciTech Connect (OSTI)

    Santhi, Nankakishore; Pan, Feng

    2009-01-01

    Several scenarios exist in the modern interconnected world which call for efficient network interdiction algorithms. Applications are varied, including computer network security, prevention of spreading of Internet worms, policing international smuggling networks, controlling spread of diseases and optimizing the operation of large public energy grids. In this paper we consider some natural network optimization questions related to the budget constrained interdiction problem over general graphs. Many of these questions turn out to be computationally hard to tackle. We present a particularly interesting practical form of the interdiction question which we show to be computationally tractable. A polynomial time algorithm is then presented for this problem.

  19. High Performance Network Monitoring

    SciTech Connect (OSTI)

    Martinez, Jesse E

    2012-08-10

    Network Monitoring requires a substantial use of data and error analysis to overcome issues with clusters. Zenoss and Splunk help to monitor system log messages that are reporting issues about the clusters to monitoring services. Infiniband infrastructure on a number of clusters upgraded to ibmon2. ibmon2 requires different filters to report errors to system administrators. Focus for this summer is to: (1) Implement ibmon2 filters on monitoring boxes to report system errors to system administrators using Zenoss and Splunk; (2) Modify and improve scripts for monitoring and administrative usage; (3) Learn more about networks including services and maintenance for high performance computing systems; and (4) Gain a life experience working with professionals under real world situations. Filters were created to account for clusters running ibmon2 v1.0.0-1 10 Filters currently implemented for ibmon2 using Python. Filters look for threshold of port counters. Over certain counts, filters report errors to on-call system administrators and modifies grid to show local host with issue.

  20. Vector Network Analysis

    Energy Science and Technology Software Center (OSTI)

    1997-10-20

    Vector network analyzers are a convenient way to measure scattering parameters of a variety of microwave devices. However, these instruments, unlike oscilloscopes for example, require a relatively high degree of user knowledge and expertise. Due to the complexity of the instrument and of the calibration process, there are many ways in which an incorrect measurement may be produced. The Microwave Project, which is part of Sandia National Laboratories Primary Standards Laboratory, routinely uses check standardsmore » to verify that the network analyzer is operating properly. In the past, these measurements were recorded manually and, sometimes, interpretation of the results was problematic. To aid our measurement assurance process, a software program was developed to automatically measure a check standard and compare the new measurements with an historical database of measurements of the same device. The program acquires new measurement data from selected check standards, plots the new data against the mean and standard deviation of prior data for the same check standard, and updates the database files for the check standard. The program is entirely menu-driven requiring little additional work by the user.« less

  1. 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

    2011-09-09

    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.

  2. Network Bandwidth Utilization Forecast Model on High Bandwidth Network

    SciTech Connect (OSTI)

    Yoo, Wucherl; Sim, Alex

    2014-07-07

    With the increasing number of geographically distributed scientific collaborations and the scale of the data size growth, it has become more challenging for users to achieve the best possible network performance on a shared network. We have developed a forecast model to predict expected bandwidth utilization for high-bandwidth wide area network. The forecast model can improve the efficiency of resource utilization and scheduling data movements on high-bandwidth network to accommodate ever increasing data volume for large-scale scientific data applications. Univariate model is developed with STL and ARIMA on SNMP path utilization data. Compared with traditional approach such as Box-Jenkins methodology, our forecast model reduces computation time by 83.2percent. It also shows resilience against abrupt network usage change. The accuracy of the forecast model is within the standard deviation of the monitored measurements.

  3. Better Buildings Network View | February 2015 | Department of...

    Office of Environmental Management (EM)

    newsletter from the U.S. Department of Energy's Better Buildings Residential Network. ... Better Buildings Network View | June 2015 Nothing But Networking for Residential Network ...

  4. RNEDE: Resilient Network Design Environment

    SciTech Connect (OSTI)

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

    2010-08-01

    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.

  5. Global interrupt and barrier networks

    DOE Patents [OSTI]

    Blumrich, Matthias A.; Chen, Dong; Coteus, Paul W.; Gara, Alan G.; Giampapa, Mark E; Heidelberger, Philip; Kopcsay, Gerard V.; Steinmacher-Burow, Burkhard D.; Takken, Todd E.

    2008-10-28

    A system and method for generating global asynchronous signals in a computing structure. Particularly, a global interrupt and barrier network is implemented that implements logic for generating global interrupt and barrier signals for controlling global asynchronous operations performed by processing elements at selected processing nodes of a computing structure in accordance with a processing algorithm; and includes the physical interconnecting of the processing nodes for communicating the global interrupt and barrier signals to the elements via low-latency paths. The global asynchronous signals respectively initiate interrupt and barrier operations at the processing nodes at times selected for optimizing performance of the processing algorithms. In one embodiment, the global interrupt and barrier network is implemented in a scalable, massively parallel supercomputing device structure comprising a plurality of processing nodes interconnected by multiple independent networks, with each node including one or more processing elements for performing computation or communication activity as required when performing parallel algorithm operations. One multiple independent network includes a global tree network for enabling high-speed global tree communications among global tree network nodes or sub-trees thereof. The global interrupt and barrier network may operate in parallel with the global tree network for providing global asynchronous sideband signals.

  6. Wellbore Integrity Network

    SciTech Connect (OSTI)

    Carey, James W.; Bachu, Stefan

    2012-06-21

    In this presentation, we review the current state of knowledge on wellbore integrity as developed in the IEA Greenhouse Gas Programme's Wellbore Integrity Network. Wells are one of the primary risks to the successful implementation of CO{sub 2} storage programs. Experimental studies show that wellbore materials react with CO{sub 2} (carbonation of cement and corrosion of steel) but the impact on zonal isolation is unclear. Field studies of wells in CO{sub 2}-bearing fields show that CO{sub 2} does migrate external to casing. However, rates and amounts of CO{sub 2} have not been quantified. At the decade time scale, wellbore integrity is driven by construction quality and geomechanical processes. Over longer time-scales (> 100 years), chemical processes (cement degradation and corrosion) become more important, but competing geomechanical processes may preserve wellbore integrity.

  7. Toward quantum plasmonic networks

    DOE PAGES-Beta [OSTI]

    Holtfrerich, M. W.; Dowran, M.; Davidson, R.; Lawrie, B. J.; Pooser, R. C.; Marino, A. M.

    2016-08-30

    Here, we demonstrate the transduction of macroscopic quantum entanglement by independent, distant plasmonic structures embedded in separate thin silver films. In particular, we show that the plasmon-mediated transmission through each film conserves spatially dependent, entangled quantum images, opening the door for the implementation of parallel quantum protocols, super-resolution imaging, and quantum plasmonic sensing geometries at the nanoscale level. The conservation of quantum information by the transduction process shows that continuous variable multi-mode entanglement is momentarily transferred from entangled beams of light to the space-like separated, completely independent plasmonic structures, thus providing a first important step toward establishing a multichannel quantummore » network across separate solid-state substrates.« less

  8. Distributed downhole drilling network

    DOE Patents [OSTI]

    Hall, David R.; Hall, Jr., H. Tracy; Fox, Joe; Pixton, David S.

    2006-11-21

    A high-speed downhole network providing real-time data from downhole components of a drilling strings includes a bottom-hole node interfacing to a bottom-hole assembly located proximate the bottom end of a drill string. A top-hole node is connected proximate the top end of the drill string. One or several intermediate nodes are located along the drill string between the bottom-hole node and the top-hole node. The intermediate nodes are configured to receive and transmit data packets transmitted between the bottom-hole node and the top-hole node. A communications link, integrated into the drill string, is used to operably connect the bottom-hole node, the intermediate nodes, and the top-hole node. In selected embodiments, a personal or other computer may be connected to the top-hole node, to analyze data received from the intermediate and bottom-hole nodes.

  9. Network Information System

    Energy Science and Technology Software Center (OSTI)

    1996-05-01

    The Network Information System (NWIS) was initially implemented in May 1996 as a system in which computing devices could be recorded so that unique names could be generated for each device. Since then the system has grown to be an enterprise wide information system which is integrated with other systems to provide the seamless flow of data through the enterprise. The system Iracks data for two main entities: people and computing devices. The following aremore » the type of functions performed by NWIS for these two entities: People Provides source information to the enterprise person data repository for select contractors and visitors Generates and tracks unique usernames and Unix user IDs for every individual granted cyber access Tracks accounts for centrally managed computing resources, and monitors and controls the reauthorization of the accounts in accordance with the DOE mandated interval Computing Devices Generates unique names for all computing devices registered in the system Tracks the following information for each computing device: manufacturer, make, model, Sandia property number, vendor serial number, operating system and operating system version, owner, device location, amount of memory, amount of disk space, and level of support provided for the machine Tracks the hardware address for network cards Tracks the P address registered to computing devices along with the canonical and alias names for each address Updates the Dynamic Domain Name Service (DDNS) for canonical and alias names Creates the configuration files for DHCP to control the DHCP ranges and allow access to only properly registered computers Tracks and monitors classified security plans for stand-alone computers Tracks the configuration requirements used to setup the machine Tracks the roles people have on machines (system administrator, administrative access, user, etc...) Allows systems administrators to track changes made on the machine (both hardware and software) Generates an

  10. Network Information System

    SciTech Connect (OSTI)

    1996-05-01

    The Network Information System (NWIS) was initially implemented in May 1996 as a system in which computing devices could be recorded so that unique names could be generated for each device. Since then the system has grown to be an enterprise wide information system which is integrated with other systems to provide the seamless flow of data through the enterprise. The system Iracks data for two main entities: people and computing devices. The following are the type of functions performed by NWIS for these two entities: People Provides source information to the enterprise person data repository for select contractors and visitors Generates and tracks unique usernames and Unix user IDs for every individual granted cyber access Tracks accounts for centrally managed computing resources, and monitors and controls the reauthorization of the accounts in accordance with the DOE mandated interval Computing Devices Generates unique names for all computing devices registered in the system Tracks the following information for each computing device: manufacturer, make, model, Sandia property number, vendor serial number, operating system and operating system version, owner, device location, amount of memory, amount of disk space, and level of support provided for the machine Tracks the hardware address for network cards Tracks the P address registered to computing devices along with the canonical and alias names for each address Updates the Dynamic Domain Name Service (DDNS) for canonical and alias names Creates the configuration files for DHCP to control the DHCP ranges and allow access to only properly registered computers Tracks and monitors classified security plans for stand-alone computers Tracks the configuration requirements used to setup the machine Tracks the roles people have on machines (system administrator, administrative access, user, etc...) Allows systems administrators to track changes made on the machine (both hardware and software) Generates an adjustment

  11. 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.

    2011-08-16

    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 ate 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 and class structures. 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 needs of a processing algorithm.

  12. 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

    2014-01-07

    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.

  13. Phoebus: Network Middleware for Next-Generation Network Computing

    SciTech Connect (OSTI)

    Martin Swany

    2012-06-16

    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.

  14. Better Buildings Network View February 2016

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    BetterBuildings Network View News From the Field Residential Network Members Unite to Form Green Bank Network Residential Network member Connecticut Green Bank and NY Green Bank, a division of Residential Network member New York State Energy Research and Development Authority, have helped launch the Green Bank Network, a new international organization focused on collaborating to scale up private financing to meet the challenge of climate change. During the United Nations Climate Change

  15. CX-010756: Categorical Exclusion Determination

    Energy.gov [DOE]

    Solar Utility Network Deployment Acceleration CX(s) Applied: A9, A11 Date: 08/15/2013 Location(s): Virginia Offices(s): Golden Field Office

  16. CX-011237: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightspeed Networks Inc. Fiber Installation CX(s) Applied: B4.9 Date: 10/24/2013 Location(s): Oregon Offices(s): Bonneville Power Administration

  17. Rural Innovations Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Network Jump to: navigation, search Name: Rural Innovations Network Place: India Sector: Services Product: General Financial & Legal Services ( Charity Non-profit Association...

  18. Residential Energy Services Network (RESNET) Conference | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Energy Services Network (RESNET) Conference Residential Energy Services Network (RESNET) Conference February 29, 2016 9:00AM EST to March 2, 2016 5:0

  19. Indigenous Environmental Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Indigenous Environmental Network Name: Indigenous Environmental Network Address: PO Box 485 Place: Bemidji, MN Year Founded: 1990 Phone Number: (218) 751-4967 Website:...

  20. Networks, smart grids: new model for synchronization

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Networks, smart grids: new model for synchronization Networks, smart grids: new model for synchronization Researchers developed a surprisingly simple mathematical model that ...

  1. Clean Economy Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Network Jump to: navigation, search Name: Clean Economy Network Place: Washington, Washington, DC Zip: 20004 Product: Washingt (DC-based advocacy group focused on clean energy and...

  2. Silver Spring Networks Inc | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Spring Networks Inc Jump to: navigation, search Name: Silver Spring Networks Inc Place: Redwood City, California Zip: 94063 Product: California-based, developer of utility...

  3. Mesoscale Simulations of Coarsening in GB Networks

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Mukul Kumar is the Principal Investigator for Mesoscale Simulations of Coarsening in GB Networks LLNL BES Programs Highlight Mesoscale Simulations of Coarsening in GB Networks The...

  4. Southeast Energy Efficiency Alliance Launches Finance Network...

    Energy Savers

    Southeast Energy Efficiency Alliance Launches Finance Network Southeast Energy Efficiency Alliance Launches Finance Network Photo of two hands holding dollar bills shaped like a ...

  5. Better Buildings Network View, March 2015

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... sent to Residential Network members or via the Residential Network Group on Home Energy Pros. ... renewable energy systems (e.g., solar panels, small wind power systems) ...

  6. EA-1964: National Ecological Observation Network (NEON)

    Energy.gov [DOE]

    The National Science Foundation (NSF) prepared an EA that evaluated potential environmental impacts of the proposed National Ecological Observation Network (NEON), a continental-scale network of...

  7. Better Buildings Residential Network Membership Form | Department...

    Energy.gov (indexed) [DOE]

    of Energy's Better Buildings Residential Network. BBRN Membership Form (138.55 KB) More Documents & Publications Better Buildings Residential Network Orientation Fact Sheet: ...

  8. Better Buildings Residential Network Case Study: Partnerships...

    Energy Savers

    Better Buildings Residential Network Case Study: Partnerships Better Buildings Residential Network Case Study: Partnerships, from the U.S. Department of Energy's Office of Energy ...

  9. Better Buildings Residential Network Orientation Webinar | Department...

    Energy Savers

    September 11, 2014. Call Slides and Discussion Summary (2.44 MB) More Documents & Publications Better Buildings Residential Network Orientation Better Buildings Residential Network ...

  10. Better Buildings Residential Network Orientation | Department...

    Energy Savers

    Orientation Better Buildings Residential Network Orientation Better Buildings Residential Network (BBRN) Orientation Call Slides and Summary, March 27, 2014. Call Slides and ...

  11. Better Buildings Residential Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Better Buildings Residential Network Better Buildings Residential Network Explore Peer ... programs can implement and leverage to quickly show energy and utility dollar savings. ...

  12. Better Buildings Residential Network (BBRN) Orientation Call...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... 11 Better Buildings Residential Network (BBRN) Better Buildings Residential Network: Connects energy efficiency programs and partners to share best practices to increase the ...

  13. Structure Learning in Power Distribution Networks (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Structure Learning in Power Distribution Networks Citation Details In-Document Search Title: Structure Learning in Power Distribution Networks Authors: Deka, ...

  14. Grencubator. Ukrainian energy innovation network | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    Grencubator. Ukrainian energy innovation network Jump to: navigation, search Name: Greencubator. Ukrainian energy innovation network Place: Kyiv, Ukraine Number of Employees: 1-10...

  15. Creative Environmental Networks | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Environmental Networks Jump to: navigation, search Name: Creative Environmental Networks Place: United Kingdom Zip: CR7 7JG Sector: Biomass, Renewable Energy, Services Product:...

  16. CX-012098: Categorical Exclusion Determination

    Energy.gov [DOE]

    S8G Prototype Refueling Overhaul CX(s) Applied: B1.3, B1.5, B1.7, B1.14, B1.30, B1.31, B2.1, B2.4, B2.5, B6.3 Date: 04/01/2014 Location(s): New York Offices(s): Naval Nuclear Propulsion Program

  17. Towards A Network-of-Networks Framework for Cyber Security

    SciTech Connect (OSTI)

    Halappanavar, Mahantesh; Choudhury, Sutanay; Hogan, Emilie A.; Hui, Peter SY; Johnson, John R.; Ray, Indrajit; Holder, Lawrence B.

    2013-06-07

    Networks-of-networks (NoN) is a graph-theoretic model of interdependent networks that have distinct dynamics at each network (layer). By adding special edges to represent relationships between nodes in different layers, NoN provides a unified mechanism to study interdependent systems intertwined in a complex relationship. While NoN based models have been proposed for cyber-physical systems, in this paper we build towards a three-layer NoN model for an enterprise cyber system. Each layer captures a different facet of a cyber system. We then discuss the potential benefits of graph-theoretic analysis enabled from such a model. Our goal is to provide a novel and powerful tool for modeling and analyzing problems in cyber security.

  18. Biomass Rapid Analysis Network (BRAN)

    SciTech Connect (OSTI)

    Not Available

    2003-10-01

    Helping the emerging biotechnology industry develop new tools and methods for real-time analysis of biomass feedstocks, process intermediates and The Biomass Rapid Analysis Network is designed to fast track the development of modern tools and methods for biomass analysis to accelerate the development of the emerging industry. The network will be led by industry and organized and coordinated through the National Renewable Energy Lab. The network will provide training and other activities of interest to BRAN members. BRAN members will share the cost and work of rapid analysis method development, validate the new methods, and work together to develop the training for the future biomass conversion workforce.

  19. ARM - Field Campaign - COSMOS Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    or call us at 1-888-ARM-DATA. Send Campaign : COSMOS Network 2010.08.05 - 2013.08.01 Lead Scientist : Marek Zreda For data sets, see below. Abstract Cosmic-ray soil moisture...

  20. Program for Online Network Inversion

    Energy Science and Technology Software Center (OSTI)

    2009-12-21

    PONI determines the source location of a contamination incident in a water distribution network. PONI uses large scale optimization methods to predict likely source locations by reconciling the differences between observations and numerical predictions of possible contamination incidents.

  1. The Ad Lucem Research Network

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ad Lucem Research Network Lada Adamic Associate Professor, School of Information & Center for the Study of Complex Systems University of Michigan Research interests: structure and dynamics of social and information networks, with a particular emphasis on information diffusion, expertise sharing, and online communities D. Lazer et al. "Computational Social Science." Science 323, 5915 (2009). J. Leskovec, L. A. Adamic, and B. A. Huberman. "The dynamics of viral marketing."

  2. Fact Sheet: Better Buildings Residential Network

    Energy.gov [DOE]

    Fact Sheet: Better Buildings Residential Network, increasing the number of American Homes that are energy efficient.

  3. Better Buildings Residential Network Orientation Webinar

    Office of Energy Efficiency and Renewable Energy (EERE)

    Better Buildings Residential Network Orientation Webinar, call slides and discussion summary, May 14, 2015.

  4. Better Buildings Residential Network Orientation Webinar

    Office of Energy Efficiency and Renewable Energy (EERE)

    Better Buildings Residential Network Orientation Webinar, call slides and discussion summary, September 11, 2014.

  5. Anomaly Detection in Dynamic Networks

    SciTech Connect (OSTI)

    Turcotte, Melissa

    2014-10-14

    Anomaly detection in dynamic communication networks has many important security applications. These networks can be extremely large and so detecting any changes in their structure can be computationally challenging; hence, computationally fast, parallelisable methods for monitoring the network are paramount. For this reason the methods presented here use independent node and edge based models to detect locally anomalous substructures within communication networks. As a first stage, the aim is to detect changes in the data streams arising from node or edge communications. Throughout the thesis simple, conjugate Bayesian models for counting processes are used to model these data streams. A second stage of analysis can then be performed on a much reduced subset of the network comprising nodes and edges which have been identified as potentially anomalous in the first stage. The first method assumes communications in a network arise from an inhomogeneous Poisson process with piecewise constant intensity. Anomaly detection is then treated as a changepoint problem on the intensities. The changepoint model is extended to incorporate seasonal behavior inherent in communication networks. This seasonal behavior is also viewed as a changepoint problem acting on a piecewise constant Poisson process. In a static time frame, inference is made on this extended model via a Gibbs sampling strategy. In a sequential time frame, where the data arrive as a stream, a novel, fast Sequential Monte Carlo (SMC) algorithm is introduced to sample from the sequence of posterior distributions of the change points over time. A second method is considered for monitoring communications in a large scale computer network. The usage patterns in these types of networks are very bursty in nature and don’t fit a Poisson process model. For tractable inference, discrete time models are considered, where the data are aggregated into discrete time periods and probability models are fitted to the

  6. Virtual Private Network (VPN) | Argonne National Laboratory

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Virtual Private Network (VPN) Use a VPN connection for secure access to Argonne's internal networks. To protect Argonne's computing networks, resources, and data, many applications and computing resources on Laboratory networks are not available from offsite without the use of a Virtual Private Network (VPN) connection.The use of a VPN connection allows services to pass through an encrypted "tunnel" to and from the Laboratory, thus giving authenticated users offsite access to internal

  7. The Science DMZ: A Network Design Pattern

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Science DMZ: A Network Design Pattern for Data-Intensive Science Eli Dart Energy Sciences Network Lawrence Berkeley National Laboratory Berkeley, CA 94720 eddart@lbl.gov Lauren Rotman Energy Sciences Network Lawrence Berkeley National Laboratory Berkeley, CA 94720 lbrotman@lbl.gov Brian Tierney Energy Sciences Network Lawrence Berkeley National Laboratory Berkeley, CA 94720 bltierney@lbl.gov Mary Hester Energy Sciences Network Lawrence Berkeley National Laboratory Berkeley, CA 94720

  8. Business networking and coaching at your doorstep

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Business networking and coaching at your doorstep Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:November 2, 2016 all issues All Issues » submit Business networking and coaching at your doorstep Network facilitators lend a helping hand to northern New Mexico entrepreneurs June 1, 2014 Andrea Gottschalk, Los Alamos Connect network facilitator for San Miguel County. Andrea Gottschalk, Los Alamos Connect network facilitator for San

  9. Flexible network wireless transceiver and flexible network telemetry transceiver

    DOE Patents [OSTI]

    Brown, Kenneth D.

    2008-08-05

    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.

  10. Better Buildings Network View | April 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | April 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View April 2014 (130.28 KB) More Documents & Publications Better Buildings Network View | December 2014 Better Buildings Residential Network Orientation Webinar Better Buildings Network View | May

  11. Better Buildings Network View | April 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | April 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View April 2016 (154.45 KB) More Documents & Publications Better Buildings Network View | May 2016 Better Buildings Network View | June 2016 Better Buildings Network View | October 2016

  12. Better Buildings Network View | February 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | February 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View February 2014 (173.15 KB) More Documents & Publications Better Buildings Network View | January 2014 Better Buildings Network View | May 2015 Better Buildings Network View | June 2015

  13. Better Buildings Network View | June 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | June 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View June 2016 (235.96 KB) More Documents & Publications Better Buildings Network View | July-August 2016 Better Buildings Network View | September 2016 Better Buildings Network View | November

  14. Better Buildings Network View | March 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | March 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View March 2014 (129.73 KB) More Documents & Publications Better Buildings Network View | May 2015 Better Buildings Network View | June 2015 Better Buildings Network View | April 2014

  15. Better Buildings Network View | March 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | March 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View March 2016 (211.92 KB) More Documents & Publications Better Buildings Network View | April 2016 Better Buildings Network View | May 2016 Better Buildings Network View | January 2016

  16. Better Buildings Network View | May 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | May 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View May 2016 (196.19 KB) More Documents & Publications Better Buildings Network View | April 2016 Better Buildings Network View | June 2016 Better Buildings Network View | September 2016

  17. Better Buildings Network View | November 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | November 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View November 2014 (162.63 KB) More Documents & Publications Better Buildings Network View | July-August 2014 Better Buildings Residential Network Orientation Webinar Better Buildings Network View | December 2014

  18. Better Buildings Network View | October 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | October 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View October 2016 (176.3 KB) More Documents & Publications Better Buildings Network View | April 2016 Better Buildings Network View | June 2016 Better Buildings Network View | September 2016

  19. Better Buildings Network View | September 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | September 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View September 2016 (121.63 KB) More Documents & Publications Better Buildings Network View | June 2016 Better Buildings Network View | July-August 2016 Better Buildings Network View | October 2016

  20. Northeast Hydrogen Station Network Summary

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    World leader in gases, technologies and services for Industry and Health June 10, 2016 NE Hydrogen Station Network Summary DOE AMR 2016 2 World leader in gases, technologies and services for Industry and Health East Coast Planned Fueling network- Stations 12 Stations for the North East  NYC and Long Island- (4)  Boston Area - (4)  Connecter Stations - (1) Hartford, CT & (1) Providence, RI  Northern New Jersey- (2) 6/18/2016 3 World leader in gases, technologies and services for

  1. Network user`s guide

    SciTech Connect (OSTI)

    McGrady, P.W.

    1994-12-01

    NETWORK is a FORTRAN code used to model process flow systems in the gaseous diffusion plants at Portsmouth, Ohio and Paducah, Kentucky, operated by the United States Enrichment Corporation. It can handle a wide range of components and several different types of controllers. NETWORK can be run in either a steady-state mode or a transient mode. In the transient mode many different types of perturbations may be modeled. It is currently being used to model taking a cell off-stream in a gaseous diffusion plant. A brief description of the code is given, and process equipment models and input data are discussed.

  2. Virtualized Network Control. Final Report

    SciTech Connect (OSTI)

    Ghani, Nasir

    2013-02-01

    This document is the final report for the Virtualized Network Control (VNC) project, which was funded by the United States Department of Energy (DOE) Office of Science. This project was also informally referred to as Advanced Resource Computation for Hybrid Service and TOpology NEtworks (ARCHSTONE). This report provides a summary of the project's activities, tasks, deliverable, and accomplishments. It also provides a summary of the documents, software, and presentations generated as part of this projects activities. Namely, the Appendix contains an archive of the deliverables, documents, and presentations generated a part of this project.

  3. ESnet: Advanced Networking for Science

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    N E R G Y S C I E N C E S N E T W O R K Researchers around the world using advanced computing for scientific discovery are connected via the DOE-operated Energy Sciences Network (ESnet). By providing a reliable, high-performance communications infrastructure, ESnet facilitates the large-scale, collaborative science endeavors fundamental to Office of Science missions. Energy Sciences Network In many ways, the dramatic achievements of 21st century scientific discovery-often involving enormous data

  4. BER Science Network Requirements (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: BER Science Network Requirements Citation Details In-Document Search Title: BER Science Network Requirements The Energy Sciences Network (ESnet) is the primary ...

  5. UNEP-Southeast Asia Climate Change Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Southeast Asia Climate Change Network Jump to: navigation, search Logo: UNEP-Southeast Asia Climate Change Network Name UNEP-Southeast Asia Climate Change Network AgencyCompany...

  6. Renewable Energy Business Network - Boston | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Network - Boston Jump to: navigation, search Name: Clean Economy Network FoundationRenewable Energy Business Network - Boston Address: 55 Union Street Place: Boston, MA Zip: 02108...

  7. Austin Solar Energy Entrepreneurs Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Entrepreneurs Network Jump to: navigation, search Logo: Austin Solar Energy Entrepreneurs Network Name: Austin Solar Energy Entrepreneurs Network Place: Austin, Texas Zip: 78701...

  8. Better Buildings Network View | November 2015 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | November 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  9. Better Buildings Network View | January 2016 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | January 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  10. Better Buildings Network View | June 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | June 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon ...

  11. Better Buildings Network View | January 2015 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | January 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  12. Better Buildings Network View | February 2014 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | February 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  13. Better Buildings Network View | July-August 2014 | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | July-August 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. ...

  14. Better Buildings Network View | February 2016 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | February 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  15. Better Buildings Network View | May 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | May 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon ...

  16. Better Buildings Network View | March 2014 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | March 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  17. Better Buildings Network View | April 2015 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | April 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  18. Better Buildings Network View | December 2014 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | December 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  19. Better Buildings Network View | March 2015 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | March 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  20. Better Buildings Network View | January 2014 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    4 Better Buildings Network View | January 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  1. Better Buildings Network View | October 2015 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | October 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  2. Better Buildings Network View | March 2016 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Better Buildings Network View | March 2016 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF ...

  3. Better Buildings Network View | June 2015 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | June 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon ...

  4. Better Buildings Network View | July-August 2015 | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | July-August 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. ...

  5. United Nations Energy Knowledge Network (UN-Energy) | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    Energy Knowledge Network (UN-Energy) Jump to: navigation, search Logo: United Nations Energy Knowledge Network (UN-Energy) Name: United Nations Energy Knowledge Network (UN-Energy)...

  6. ARM: Baseline Solar Radiation Network (BSRN): solar irradiances...

    Office of Scientific and Technical Information (OSTI)

    Baseline Solar Radiation Network (BSRN): solar irradiances Title: ARM: Baseline Solar Radiation Network (BSRN): solar irradiances Baseline Solar Radiation Network (BSRN): solar ...

  7. Better Buildings Network View | November 2014 | Department of...

    Office of Environmental Management (EM)

    newsletter from the U.S. Department of Energy's Better Buildings Residential Network. ... Better Buildings Network View | July-August 2014 Better Buildings Residential Network ...

  8. Better Buildings Network View | December 2015 | Department of...

    Office of Environmental Management (EM)

    newsletter from the U.S. Department of Energy's Better Buildings Residential Network. ... Network View | July-August 2015 Better Buildings Residential Network Orientation Webinar

  9. Better Buildings Network View | April 2014 | Department of Energy

    Office of Environmental Management (EM)

    Residential Network. Better Buildings Network View April 2014 (130.28 KB) More Documents & Publications Better Buildings Network View | December 2014 Better Buildings Residential ...

  10. Better Buildings Network View | May 2015 | Department of Energy

    Office of Environmental Management (EM)

    Residential Network. Better Buildings Network View May 2015 (548.9 KB) More Documents & Publications Better Buildings Network View | June 2015 Home Performance with ENERGY STAR ...

  11. CX-005450: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Construction of an Autogas Refueling Network (Discount Auto Brokers)CX(s) Applied: B5.1Date: 03/16/2011Location(s): Houston, TexasOffice(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  12. Organization of growing random networks

    SciTech Connect (OSTI)

    Krapivsky, P. L.; Redner, S.

    2001-06-01

    The organizational development of growing random networks is investigated. These growing networks are built by adding nodes successively, and linking each to an earlier node of degree k with an attachment probability A{sub k}. When A{sub k} grows more slowly than linearly with k, the number of nodes with k links, N{sub k}(t), decays faster than a power law in k, while for A{sub k} growing faster than linearly in k, a single node emerges which connects to nearly all other nodes. When A{sub k} is asymptotically linear, N{sub k}(t){similar_to}tk{sup {minus}{nu}}, with {nu} dependent on details of the attachment probability, but in the range 2{lt}{nu}{lt}{infinity}. The combined age and degree distribution of nodes shows that old nodes typically have a large degree. There is also a significant correlation in the degrees of neighboring nodes, so that nodes of similar degree are more likely to be connected. The size distributions of the in and out components of the network with respect to a given node{emdash}namely, its {open_quotes}descendants{close_quotes} and {open_quotes}ancestors{close_quotes}{emdash}are also determined. The in component exhibits a robust s{sup {minus}2} power-law tail, where s is the component size. The out component has a typical size of order lnt, and it provides basic insights into the genealogy of the network.

  13. Host Event Based Network Monitoring

    SciTech Connect (OSTI)

    Jonathan Chugg

    2013-01-01

    The purpose of INL’s research on this project is to demonstrate the feasibility of a host event based network monitoring tool and the effects on host performance. Current host based network monitoring tools work on polling which can miss activity if it occurs between polls. Instead of polling, a tool could be developed that makes use of event APIs in the operating system to receive asynchronous notifications of network activity. Analysis and logging of these events will allow the tool to construct the complete real-time and historical network configuration of the host while the tool is running. This research focused on three major operating systems commonly used by SCADA systems: Linux, WindowsXP, and Windows7. Windows 7 offers two paths that have minimal impact on the system and should be seriously considered. First is the new Windows Event Logging API, and, second, Windows 7 offers the ALE API within WFP. Any future work should focus on these methods.

  14. Nano Communication Networks Update | GE Global Research

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Nano Communication Networks Update Click to email this to a friend (Opens in new window) ... Nano Communication Networks Update Steve Bush 2011.12.09 Hi everybody, In my last blog I ...

  15. Computer network control plane tampering monitor

    DOE Patents [OSTI]

    Michalski, John T.; Tarman, Thomas D.; Black, Stephen P.; Torgerson, Mark D.

    2010-06-08

    A computer network control plane tampering monitor that detects unauthorized alteration of a label-switched path setup for an information packet intended for transmission through a computer network.

  16. Energy Materials Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Materials Network LightMat LightMat Established as part of the Energy Materials Network, the mission of the Lightweight Materials National Lab Consortium (LightMat) is to ...

  17. Global Renewable Energy Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Renewable Energy Network (GReEN) Name: Global Renewable Energy Network (GReEN) Address: P.O. Box 1999 Place: Massapequa, NY Zip: 11758 Region: Northeast - NY NJ CT PA Area Number...

  18. Better Buildings Residential Network Orientation Webinar Call...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Rural Ulster Preservation Company Solar and Energy Loan Fund Southeast Energy ... Consortium Upper Peninsula of Michigan Green Development Network Vermont ...

  19. Better Buildings Residential Network Program Sustainability Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Buildings Residential Network Program Sustainability Peer Exchange Call: Complementary ... and more diverse 13 Future Program Sustainability Call Topics * Program Sustainability ...

  20. Social Network and Communications Institutional Change Principle |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Network and Communications Institutional Change Principle Social Network and Communications Institutional Change Principle Federal agencies can use social networks and communications to spark and reinforce behavior change for meeting sustainability goals. This principle is based on research findings showing that people and institutions often are strongly influenced by the behaviors and expectations of others. Methods The social network and communications behavior change

  1. Solar Instructor Training Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Instructor Training Network Solar Instructor Training Network The Solar Instructor Training Network promotes high-quality training in the installation of solar technologies. Nine regional resource and training providers support the professional development of trainers and instructors of solar photovoltaic and solar heating and cooling technologies across the country. The goal of the Solar Instructor Training Network is to accelerate market adoption of solar technologies by ensuring that

  2. Associative memory in phasing neuron networks

    SciTech Connect (OSTI)

    Nair, Niketh S; Bochove, Erik J.; Braiman, Yehuda

    2014-01-01

    We studied pattern formation in a network of coupled Hindmarsh-Rose model neurons and introduced a new model for associative memory retrieval using networks of Kuramoto oscillators. Hindmarsh-Rose Neural Networks can exhibit a rich set of collective dynamics that can be controlled by their connectivity. Specifically, we showed an instance of Hebb's rule where spiking was correlated with network topology. Based on this, we presented a simple model of associative memory in coupled phase oscillators.

  3. Fermilab | Science at Fermilab | Computing | Networking

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Detectors and Computing Detectors and Computing Computing Networking Physicists are constantly exchanging information, within Fermilab and between Fermilab and collaborating ...

  4. Better Buildings Network View, July 2014

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Better Buildings Network View | July 2014 Browse the New Better Buildings Residential Network Website We invite you to visit the new Better Buildings Residential Network website launched on July 14, 2014. Visitors can find everything from how to join the Residential Network to the benefits of becoming a member. Following are a few highlights: Upcoming Peer Exchange Call information is listed on our Home page. Our Resources page, devoted to materials such as program newsletters and the U.S.

  5. Better Buildings Network View, March 2014

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    From the Field Better Buildings Network View | March 2014 March 2014 Network Members Invited to Review Optional Program Benchmarking Guide The first Better Buildings Residential Network Next Steps voluntary initiative will Winter 2014: DOE finalizes benchmark programs so guide and pilots it with up to members can see how they nine Residential Network compare to others, and you members are invited to provide DOE evaluates feedback on a draft Guide Spring 2014: pilot and starts defining for

  6. Better Buildings Network View, May 2015

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Better Buildings Network View News From the Field May 2015 Nearly 50 Home Performance with ENERGY STAR ® Sponsors Join the Residential Network The U.S. Department of Energy's (DOE's) Home Performance with ENERGY STAR (HPwES) program announced this month that its 49 Sponsors will be considered members of the Better Buildings Residential Network and begin to receive Network membership benefits. The goal of Home Performance with ENERGY STAR is to help homeowners improve the efficiency and comfort

  7. Networks in Buildings: Which Path Forward?

    SciTech Connect (OSTI)

    Nordman, Bruce

    2008-08-17

    To date, digital networks have principally been installed for connecting information technology devices, with more modest use in consumer electronics, security, and large building control systems. The next 20 years will see much greater deployment of networks in buildings of all types, and across all end uses. Most of these are likely to be introduced primarily for reasons other than energy efficiency, and add energy use for network interfaces and network products. Widespread networking could easily lead to increased energy use, and experience with IT and CE networks suggests this may be likely. Active engagement by energy efficiency professionals in the architecture and design of future networks could lead to their being a large and highly cost-effective tool for efficiency. However, network standards are complex and take many years to develop and negotiate so that lack of action on this in the near term may foreclose important opportunities for years or decades to come. Digital networks need to be common globally, providing another challenge to building systems and elements that are more commonly designed only for national or regional markets. Key future networks are lighting, climate control, and security/presence. This paper reviews some examples of past network designs and use and the lessons they hold for future building networks. It also highlights key needed areas for research, policy, and standards development.

  8. Trace Replay and Network Simulation Tool

    Energy Science and Technology Software Center (OSTI)

    2015-03-23

    TraceR is a trace reply tool built upon the ROSS-based CODES simulation framework. TraceR can be used for predicting network performances and understanding network behavior by simulating messaging in High Performance Computing applications on interconnection networks.

  9. Network Security Mechanisms Utilizing Dynamic Network Address Translation LDRD Project

    SciTech Connect (OSTI)

    PRICE, CARRIE M.; STANTON, ERIC; LEE, ERIK J.; MICHALSKI, JOHN T.; CHUA, KUAN SEAH; WONG, YIP HENG; TAN, CHUNG PHENG

    2002-11-01

    A new protocol technology is just starting to emerge from the laboratory environment. Its stated purpose is to provide an additional means in which networks, and the services that reside on them, can be protected from adversarial compromise. This report has a two-fold objective. First is to provide the reader with an overview of this emerging Dynamic Defenses technology using Dynamic Network Address Translation (Dynat). This ''structure overview'' is concentrated in the body of the report, and describes the important attributes of the technology. The second objective is to provide a framework that can be used to help in the classification and assessment of the different types of dynamic defense technologies along with some related capabilities and limitations. This information is primarily contained in the appendices.

  10. Better Buildings Network View | July-August 2016

    Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  11. Better Buildings Residential Network Reporting and Benefits Template

    Energy.gov [DOE]

    Better Buildings Residential Network Reporting and Benefits Template, from the U.S. Department of Energy Better Buildings Residential Network.

  12. Better Buildings Residential Network Reporting and Benefits FAQ

    Energy.gov [DOE]

    Better Buildings Residential Network Reporting and Benefits FAQ, from the U.S. Department of Energy Better Buildings Residential Network.

  13. The Network Completion Problem: Inferring Missing Nodes and Edges in Networks

    SciTech Connect (OSTI)

    Kim, M; Leskovec, J

    2011-11-14

    Network structures, such as social networks, web graphs and networks from systems biology, play important roles in many areas of science and our everyday lives. In order to study the networks one needs to first collect reliable large scale network data. While the social and information networks have become ubiquitous, the challenge of collecting complete network data still persists. Many times the collected network data is incomplete with nodes and edges missing. Commonly, only a part of the network can be observed and we would like to infer the unobserved part of the network. We address this issue by studying the Network Completion Problem: Given a network with missing nodes and edges, can we complete the missing part? We cast the problem in the Expectation Maximization (EM) framework where we use the observed part of the network to fit a model of network structure, and then we estimate the missing part of the network using the model, re-estimate the parameters and so on. We combine the EM with the Kronecker graphs model and design a scalable Metropolized Gibbs sampling approach that allows for the estimation of the model parameters as well as the inference about missing nodes and edges of the network. Experiments on synthetic and several real-world networks show that our approach can effectively recover the network even when about half of the nodes in the network are missing. Our algorithm outperforms not only classical link-prediction approaches but also the state of the art Stochastic block modeling approach. Furthermore, our algorithm easily scales to networks with tens of thousands of nodes.

  14. Network Performance and Troubleshooting (perfSONAR)

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Performance (perfSONAR) Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Network Performance and Troubleshooting (perfSONAR) perfSONAR:

  15. BetterBuildings Network View | September 2014

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    September 2014 News From the Field Reorient Yourself With the Better Buildings Residential Network Whether you are new to the Better Buildings Residential Network, new to your residential energy efficiency programs, or just looking for a refresher on what the Network has to offer, please join us this Thursday, September 11, from 3:00 to 4:30 p.m. Eastern for a Residential Network member orientation webinar. Hear about the Residential Network's origins and get the answers to your most frequently

  16. Multicast Reduction Network Source Code

    Energy Science and Technology Software Center (OSTI)

    2006-12-19

    MRNet is a software tree-based overlay network developed at the University of Wisconsin, Madison that provides a scalable communication mechanism for parallel tools. MRNet, uses a tree topology of networked processes between a user tool and distributed tool daemons. This tree topology allows scalable multicast communication from the tool to the daemons. The internal nodes of the tree can be used to distribute computation and alalysis on data sent from the tool daemons to themore » tool. This release covers minor implementation to port this software to the BlueGene/L architecuture and for use with a new implementation of the Dynamic Probe Class Library.« less

  17. On Building Inexpensive Network Capabilities

    SciTech Connect (OSTI)

    Shue, Craig A; Kalafut, Prof. Andrew; Allman, Mark; Taylor, Curtis R

    2011-01-01

    There are many deployed approaches for blocking unwanted traffic, either once it reaches the recipient's network, or closer to its point of origin. One of these schemes is based on the notion of traffic carrying capabilities that grant access to a network and/or end host. However, leveraging capabilities results in added complexity and additional steps in the communication process: Before communication starts a remote host must be vetted and given a capability to use in the subsequent communication. In this paper, we propose a lightweight mechanism that turns the answers provided by DNS name resolution---which Internet communication broadly depends on anyway---into capabilities. While not achieving an ideal capability system, we show the mechanism can be built from commodity technology and is therefore a pragmatic way to gain some of the key benefits of capabilities without requiring new infrastructure.

  18. Better Buildings Network View | December 2015 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 Better Buildings Network View | December 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. Better Buildings Network View December 2015 (191.86 KB) More Documents & Publications BBRN Factsheet: Case Study: Community Engagement Better Buildings Network View | July-August 2015 Better Buildings Residential Network Orientation Webinar

  19. Better Buildings Residential Network Membership Form | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Network Membership Form Better Buildings Residential Network Membership Form Membership form from the U.S. Department of Energy's Better Buildings Residential Network. BBRN Membership Form (138.55 KB) More Documents & Publications Better Buildings Residential Network Orientation Fact Sheet: Better Buildings Residential Network Membership Criteria: Better Buildings Residential Network

  20. Membership Criteria: Better Buildings Residential Network | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Membership Criteria: Better Buildings Residential Network Membership Criteria: Better Buildings Residential Network Membership Criteria: Better Buildings Residential Network of the U.S. Department of Energy. Membership Criteria (126.27 KB) More Documents & Publications Better Buildings Residential Network Orientation Better Buildings Residential Network Reporting and Benefits FAQ How Can the Network Meet Your Needs?

  1. Quantifying evolvability in small biological networks

    SciTech Connect (OSTI)

    Nemenman, Ilya; Mugler, Andrew; Ziv, Etay; Wiggins, Chris H

    2008-01-01

    The authors introduce a quantitative measure of the capacity of a small biological network to evolve. The measure is applied to a stochastic description of the experimental setup of Guet et al. (Science 2002, 296, pp. 1466), treating chemical inducers as functional inputs to biochemical networks and the expression of a reporter gene as the functional output. The authors take an information-theoretic approach, allowing the system to set parameters that optimise signal processing ability, thus enumerating each network's highest-fidelity functions. All networks studied are highly evolvable by the measure, meaning that change in function has little dependence on change in parameters. Moreover, each network's functions are connected by paths in the parameter space along which information is not significantly lowered, meaning a network may continuously change its functionality without completely losing it along the way. This property further underscores the evolvability of the networks.

  2. AERONET: The Aerosol Robotic Network

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The AERONET (AErosol RObotic NETwork) program is a federation of ground-based remote sensing aerosol networks established by NASA and LOA-PHOTONS (CNRS) and is greatly expanded by collaborators from national agencies, institutes, universities, individual scientists, and partners. The program provides a long-term, continuous and readily accessible public domain database of aerosol optical, mircrophysical and radiative properties for aerosol research and characterization, validation of satellite retrievals, and synergism with other databases. The network imposes standardization of instruments, calibration, processing and distribution. AERONET collaboration provides globally distributed observations of spectral aerosol optical Depth (AOD), inversion products, and precipitable water in diverse aerosol regimes. Aerosol optical depth data are computed for three data quality levels: Level 1.0 (unscreened), Level 1.5 (cloud-screened), and Level 2.0 (cloud screened and quality-assured). Inversions, precipitable water, and other AOD-dependent products are derived from these levels and may implement additional quality checks.[Copied from http://aeronet.gsfc.nasa.gov/new_web/system_descriptions.html

  3. Diagnosing Anomalous Network Performance with Confidence

    SciTech Connect (OSTI)

    Settlemyer, Bradley W; Hodson, Stephen W; Kuehn, Jeffery A; Poole, Stephen W

    2011-04-01

    Variability in network performance is a major obstacle in effectively analyzing the throughput of modern high performance computer systems. High performance interconnec- tion networks offer excellent best-case network latencies; how- ever, highly parallel applications running on parallel machines typically require consistently high levels of performance to adequately leverage the massive amounts of available computing power. Performance analysts have usually quantified network performance using traditional summary statistics that assume the observational data is sampled from a normal distribution. In our examinations of network performance, we have found this method of analysis often provides too little data to under- stand anomalous network performance. Our tool, Confidence, instead uses an empirically derived probability distribution to characterize network performance. In this paper we describe several instances where the Confidence toolkit allowed us to understand and diagnose network performance anomalies that we could not adequately explore with the simple summary statis- tics provided by traditional measurement tools. In particular, we examine a multi-modal performance scenario encountered with an Infiniband interconnection network and we explore the performance repeatability on the custom Cray SeaStar2 interconnection network after a set of software and driver updates.

  4. Cross-linked structure of network evolution

    SciTech Connect (OSTI)

    Bassett, Danielle S.; Wymbs, Nicholas F.; Grafton, Scott T.; Porter, Mason A.; Mucha, Peter J.

    2014-03-15

    We study the temporal co-variation of network co-evolution via the cross-link structure of networks, for which we take advantage of the formalism of hypergraphs to map cross-link structures back to network nodes. We investigate two sets of temporal network data in detail. In a network of coupled nonlinear oscillators, hyperedges that consist of network edges with temporally co-varying weights uncover the driving co-evolution patterns of edge weight dynamics both within and between oscillator communities. In the human brain, networks that represent temporal changes in brain activity during learning exhibit early co-evolution that then settles down with practice. Subsequent decreases in hyperedge size are consistent with emergence of an autonomous subgraph whose dynamics no longer depends on other parts of the network. Our results on real and synthetic networks give a poignant demonstration of the ability of cross-link structure to uncover unexpected co-evolution attributes in both real and synthetic dynamical systems. This, in turn, illustrates the utility of analyzing cross-links for investigating the structure of temporal networks.

  5. Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    by more powerful supercomputers, global collaborations that can involve thousands of researchers, and specialized facilities like the Large Hadron Collider and digital sky surveys. ...

  6. Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    datasets reach their destinations in record time. Moving Datasets Equal to 20 Billion Books Experiments and simulations can produce enormous data sets that need to be...

  7. Zone routing in a torus network

    DOE Patents [OSTI]

    Chen, Dong; Heidelberger, Philip; Kumar, Sameer

    2013-01-29

    A system for routing data in a network comprising a network logic device at a sending node for determining a path between the sending node and a receiving node, wherein the network logic device sets one or more selection bits and one or more hint bits within the data packet, a control register for storing one or more masks, wherein the network logic device uses the one or more selection bits to select a mask from the control register and the network logic device applies the selected mask to the hint bits to restrict routing of the data packet to one or more routing directions for the data packet within the network and selects one of the restricted routing directions from the one or more routing directions and sends the data packet along a link in the selected routing direction toward the receiving node.

  8. Networks, smart grids: new model for synchronization

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    May » Networks, smart grids: new model for synchronization Networks, smart grids: new model for synchronization Researchers developed a surprisingly simple mathematical model that accurately predicts synchronization as a function of the parameters and the topology of the underlying network. May 21, 2013 High voltage transmission lines carry electrical power. High voltage transmission lines carry electrical power. The researchers envision that their method could be applied to assess

  9. Better Buildings Network View March 2016

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Better Buildings Network View News From the Field New Toolkit Dives Into Training Techniques The U.S. Department of Energy (DOE) Better Buildings Residential Network has launched a Training Toolkit to help residential energy efficiency program managers identify resources and opportunities to help contractors, staff, and volunteers enhance their understanding of building science; sales and marketing; program offerings; and business development. This toolkit is the fourth Residential Network

  10. Better Buildings Network View, September 2016

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    September 2016 News From the Field New Network Case Study Shares Multifamily Finance Success The New York City Energy Efficiency Corporation (NYCEEC) is a Residential Network member that focuses on financing energy efficiency and clean energy upgrades for multifamily buildings in the city and surrounding communities. Following is one of the key takeaways from a recent Residential Network case study interview with NYCEEC Director of Business Development Jay Merves. What is your approach for

  11. Better Buildings Residential Network Social Media Toolkit

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Social Media Toolkit BETTER BUILDINGS RESIDENTIAL NETWORK Learn more at betterbuildings.energy.gov/bbrn 1 T his Better Buildings Residential Network toolkit can be used to help residential energy efficiency programs learn to engage potential customers through social media. Social media can build brand awareness concerning home energy upgrades and the entities working on them, which can lead to more energy upgrade projects taking place in the long run. Residential Network members provided input

  12. BetterBuildings Network View | December 2014

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    December 2014 News From the Field December 2014 Residential Network Members Impact More Than 42,000 Households in 2013 Eligible Better Buildings Residential Network members reported completing 27,563 home energy upgrades during 2013 as part of the Residential Network's first reporting cycle. In addition, 13 Better Buildings Neighborhood Program partners completed 12,166 home energy upgrades, and six Home Performance with ENERGY STAR® Sponsors completed 2,540 home energy upgrades, which are

  13. BetterBuildings Network View, June 2014

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Better Buildings Network View | June 2014 More Than 60 Georgetown University Energy Prize Communities Join the Residential Network in Bulk The Better Buildings Residential Network announced an agreement with the Georgetown University Energy Prize (GUEP) competition to welcome all participating communities as members, which brings the total number to more than 130. More than 60 new members, representing cities and counties with populations between 5,000 and 250,000, will significantly expand the

  14. Better Buildings Residential Network | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Network Members Residential Resources Download the Social Media Toolkit. New ... Successful Quality Assurance and Quality Control Programs (101) January 28, 2016 Einstein ...

  15. July 2016 National Idling Reduction Network News

    Energy.gov [DOE]

    The National Idling Reduction Network brings together trucking and transit companies; railroads; ports; equipment manufacturers; Federal, state, and local government agencies (including regulators)...

  16. Organizations and Networks | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Network (CLEAN) CLEAN aims to improve communication and coordination by bringing together national and international organizations that are assisting developing countries with...

  17. Social Network and Communications Institutional Change Principle...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The following case studies demonstrate successful applications of the social network and communications principle by federal agencies. Data, Feedback, and Awareness Lead to Big ...

  18. Analysis of TPV Network Losses (a Presentation)

    SciTech Connect (OSTI)

    DM DePoy; MW Dashiell; DD Rahner; LR Danielson; JE Oppenlander; JL Vell; RJ Wehrer

    2004-12-08

    This talk focuses on the theoretical analysis of electrical losses associated with electrically networking large numbers of TPV cells to produce high power TPV power generators.

  19. Energy Systems Network ESN | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    associations and breakthroughs in cleantech which help promote growth in the local economy. References: Energy Systems Network (ESN)1 This article is a stub. You can help...

  20. Vihaan Networks Limited VNL | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    to: navigation, search Name: Vihaan Networks Limited (VNL) Place: Gurgaon, Haryana, India Zip: 122015 Sector: Solar Product: Developer of solar-powered GSM system for rural...

  1. Photoresponsive Liquid Crystalline Epoxy Networks with Shape...

    Office of Scientific and Technical Information (OSTI)

    Published Article: Photoresponsive Liquid Crystalline Epoxy Networks with Shape Memory ... Sponsoring Org: USDOE Country of Publication: United States Language: English Word Cloud ...

  2. Aries Network Performance Counters Monitoring Library

    Energy Science and Technology Software Center (OSTI)

    2014-09-04

    AriesNCL is a library to monitor and record network router tile performance counters on the Aries router of Cray's Cascade/XC30 platform.

  3. Rainforest Action Network RAN | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    pressure corporations into publicly adopting policies that protect rainforests and the human rights of those living in those areas. References: Rainforest Action Network (RAN)1...

  4. Engine Combustion Network (ECN): Global sensitivity analysis...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    10 Date Published June 2015 Keywords diesel, Engine Combustion Network, global sensitivity ... The uncertainty in the fuel temperature was found to have a profound influence on the ...

  5. Better Buildings Residential Network Program Sustainability Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Network Program Sustainability Peer Exchange Call: Operating as a Prime ... to Utilities: 50% Long-Term Sustainability of Loan Funds: 50% * Participants ...

  6. Porous Polymer Networks: Synthesis, Porosity, and Applications...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Porous Polymer Networks: Synthesis, Porosity, and Applications in Gas StorageSeparation Previous Next List Weigang Lu, Daqiang Yuan, Dan Zhao, Christine Inge Schilling, Oliver...

  7. Better Buildings Residential Network Workforce Peer Exchange...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Community Power Works Program Senior Building Scientist at CLEAResult Community Power Works Quality Assurance Better Buildings Residential Network March, 2014 Dan Wildenhaus QC and ...

  8. Better Buildings Residential Network Membership Form, January...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Network members to create new resources to help them overcome implementation challenges Opportunities for shared, voluntary program benchmarking for comparing efforts...

  9. Thermoelectric properties of semiconductor nanowire networks

    DOE PAGES-Beta [OSTI]

    Roslyak, Oleksiy; Piryatinski, Andrei

    2016-03-28

    To examine the thermoelectric (TE) properties of a semiconductor nanowire (NW) network, we propose a theoretical approach mapping the TE network on a two-port network. In contrast to a conventional single-port (i.e., resistor)network model, our model allows for large scale calculations showing convergence of TE figure of merit, ZT, with an increasing number of junctions. Using this model, numerical simulations are performed for the Bi2Te3 branched nanowire (BNW) and Cayley tree NW (CTNW) network. We find that the phonon scattering at the network junctions plays a dominant role in enhancing the network ZT. Specifically, disordered BNW and CTNW demonstrate anmore » order of magnitude higher ZT enhancement compared to their ordered counterparts. Formation of preferential TE pathways in CTNW makes the network effectively behave as its BNW counterpart. In conclusion, we provide formalism for simulating large scale nanowire networks hinged upon experimentally measurable TE parameters of a single T-junction.« less

  10. Broadband Energy Networks Inc | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Darby, Pennsylvania Zip: 19082 Product: Provides automated equipment and usage monitoring systems for energy management. References: Broadband Energy Networks Inc1 This article...

  11. Neural network based system for equipment surveillance

    DOE Patents [OSTI]

    Vilim, Richard B.; Gross, Kenneth C.; Wegerich, Stephan W.

    1998-01-01

    A method and system for performing surveillance of transient signals of an industrial device to ascertain the operating state. The method and system involves the steps of reading into a memory training data, determining neural network weighting values until achieving target outputs close to the neural network output. If the target outputs are inadequate, wavelet parameters are determined to yield neural network outputs close to the desired set of target outputs and then providing signals characteristic of an industrial process and comparing the neural network output to the industrial process signals to evaluate the operating state of the industrial process.

  12. Neural network based system for equipment surveillance

    DOE Patents [OSTI]

    Vilim, R.B.; Gross, K.C.; Wegerich, S.W.

    1998-04-28

    A method and system are disclosed for performing surveillance of transient signals of an industrial device to ascertain the operating state. The method and system involves the steps of reading into a memory training data, determining neural network weighting values until achieving target outputs close to the neural network output. If the target outputs are inadequate, wavelet parameters are determined to yield neural network outputs close to the desired set of target outputs and then providing signals characteristic of an industrial process and comparing the neural network output to the industrial process signals to evaluate the operating state of the industrial process. 33 figs.

  13. Benefits of Better Buildings Residential Network Reporting

    Energy.gov [DOE]

    Better Buildings Residential Network All-Member Peer Exchange Call: Member Reporting and Benefits, Call Slides and Discussion Summary, May 22, 2014.

  14. Sensors, Controls, & Transactional Network Reports | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Network Reports Buildings-to-Grid Technical Opportunities: Introduction and Vision (Mar 2014) Buildings-to-Grid Technical Opportunities: From the Buildings Perspective (Mar...

  15. Better Buildings Residential Network Orientation Webinar, Call...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Juan Islands Conservation District Solar and Energy Loan Fund (SELF) Solar City ...ildings-residential-network Home Energy Pros Group Home Energy Pros Group (Cont.) ...

  16. Better Buildings Residential Network Financing & Revenue Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Network Group on Home Energy Pros Join to access: Peer exchange call ... Efficiency Loans) * Connecticut's Solar Leasing Program * Kentucky Home ...

  17. Better Buildings Network View, November 2014

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Residential Network Group to participate in the online community on Home Energy Pros. ... PM EST Register now Combining Solar and Home Performance Services** 3:00-4:30 ...

  18. Better Buildings Residential Network Program Sustainability Mastermind...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Nevada Philadelphia, Pennsylvania Portland, Oregon Solar and Energy Loan Fund (St. ... Network Group on Home Energy Pros Join to access: Peer exchange call ...

  19. Better Buildings Residential Network Marketing & Outreach Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Residential Network Group on Home Energy Pros Join to access: Peer exchange call ... Power and Light- now looking at solar * Energy champions and outreach materials. ...

  20. SkyPilot Networks | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    California Product: US-based provider of broadband wireless solutions to utilities, public service agencies and municipalities. References: SkyPilot Networks1 This article...

  1. Better Buildings Residential Network Orientation Webinar | Department...

    Energy Savers

    May 14, 2015. Call Slides and Discussion Summary (2.01 MB) More Documents & Publications Better Buildings Residential Network Orientation Webinar Better Buildings Residential ...

  2. Fact Sheet: Better Buildings Residential Network | Department...

    Energy.gov (indexed) [DOE]

    Fact Sheet: Better Buildings Residential Network, increasing the number of American Homes that are energy efficient. BBRN Fact Sheet (428.79 KB) More Documents & Publications ...

  3. Membership Criteria: Better Buildings Residential Network | Department...

    Energy.gov (indexed) [DOE]

    Membership Criteria: Better Buildings Residential Network of the U.S. Department of Energy. Membership Criteria (126.27 KB) More Documents & Publications Better Buildings ...

  4. Better Buildings Network View July 2015

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Buildings Residential Network has developed a Social Media Toolkit to help residential energy efficiency programs assess and determine the best social media platforms for their ...

  5. Understanding Sampling Network Coverage Maddalena, Damian; Hoffman...

    Office of Scientific and Technical Information (OSTI)

    and quantitative representativeness maps of individual and combined networks. ORNL Climate Change Science Institute (CCSI), Oak Ridge National Laboratory (ORNL), Oak Rdige,...

  6. Matching network for RF plasma source

    DOE Patents [OSTI]

    Pickard, Daniel S.; Leung, Ka-Ngo

    2007-11-20

    A compact matching network couples an RF power supply to an RF antenna in a plasma generator. The simple and compact impedance matching network matches the plasma load to the impedance of a coaxial transmission line and the output impedance of an RF amplifier at radio frequencies. The matching network is formed of a resonantly tuned circuit formed of a variable capacitor and an inductor in a series resonance configuration, and a ferrite core transformer coupled to the resonantly tuned circuit. This matching network is compact enough to fit in existing compact focused ion beam systems.

  7. How Can the Network Meet Your Needs?

    Energy.gov [DOE]

    Better Buildings Residential Program Peer Exchange Call: How Can the Network Meet Your Needs? Call Slides and Meeting Summary, February 27, 2014.

  8. ESnet: a Production IPv6 Network

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    IPv6 Network In anticipation of the scalability problems with IPv4 (the current Internet Protocol), the Internet Engineering Task Force (IETF) has produced a comprehensive...

  9. Epidemic Percolation Networks, Epidemic Outcomes, and Interventions

    DOE PAGES-Beta [OSTI]

    Kenah, Eben; Miller, Joel C.

    2011-01-01

    Epidemic percolation networks (EPNs) are directed random networks that can be used to analyze stochastic “Susceptible-Infectious-Removed” (SIR) and “Susceptible-Exposed-Infectious-Removed” (SEIR) epidemic models, unifying and generalizing previous uses of networks and branching processes to analyze mass-action and network-based S(E)IR models. This paper explains the fundamental concepts underlying the definition and use of EPNs, using them to build intuition about the final outcomes of epidemics. We then show how EPNs provide a novel and useful perspective on the design of vaccination strategies.

  10. Solar Action Network | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Jump to: navigation, search Name: Solar Action Network Address: PO Box 15546 Place: San Luis Obispo, California Zip: 93401 Phone Number: 5058476527 Website:...

  11. Electronic networking and sustainable development

    SciTech Connect (OSTI)

    Daudpota, Q.I.

    1995-12-01

    To increase the capacity of institutions in various countries to implement the ambitious plans of Agenda 21, the United Nations Development Programme (UNDP) set up the Sustainable Development Networking Programme (SDNP) to help the process of sustainable development nationally and globally. Started initially in 15 developing countries, SDNPs are considered as a medium for individuals, organizations and governments to communicate ideas, share information resources, and exchange experiences among each other and globally to learn the appropriate ways to solve our ecological problems. The paper will review the idea of SDNPs globally and will describe in detail its successful implementation in Pakistan. In a country with, hitherto, virtually no electronic mail service, the SDNP has shown how its provision has had a significant impact on obtaining useful information on environmental problems, and in one case has helped save lives. SDNP Pakistan has made an effort to demonstrate the benefits of electronic communications to wide range users in the country. Some of these will be described. It is suggested how electronic networks linking organizations and people in the developing world with experts, organizations and data sources internationally, can greatly assist developmental effort globally.

  12. Better Buildings Residential Network Orientation | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Orientation Better Buildings Residential Network Orientation Better Buildings Residential Network (BBRN) Orientation Call Slides and Summary, March 27, 2014. Call Slides and Summary (2.69 MB) More Documents & Publications Better Buildings Residential Network Orientation Webinar Better Buildings Residential Network Orientation Webinar How Can the Network Meet Your Needs?

  13. Southeast Energy Efficiency Alliance Launches Finance Network

    Energy.gov [DOE]

    The Southeast Energy Efficiency Alliance (SEEA)—a Better Buildings Residential Network member and Better Buildings Neighborhood Program partner—and the University of North Carolina at Chapel Hill Environmental Finance Center recently announced the launch of the Southeast Energy Efficiency Finance Network.

  14. Analysis of complex networks using aggressive abstraction.

    SciTech Connect (OSTI)

    Colbaugh, Richard; Glass, Kristin.; Willard, Gerald

    2008-10-01

    This paper presents a new methodology for analyzing complex networks in which the network of interest is first abstracted to a much simpler (but equivalent) representation, the required analysis is performed using the abstraction, and analytic conclusions are then mapped back to the original network and interpreted there. We begin by identifying a broad and important class of complex networks which admit abstractions that are simultaneously dramatically simplifying and property preserving - we call these aggressive abstractions -- and which can therefore be analyzed using the proposed approach. We then introduce and develop two forms of aggressive abstraction: 1.) finite state abstraction, in which dynamical networks with uncountable state spaces are modeled using finite state systems, and 2.) onedimensional abstraction, whereby high dimensional network dynamics are captured in a meaningful way using a single scalar variable. In each case, the property preserving nature of the abstraction process is rigorously established and efficient algorithms are presented for computing the abstraction. The considerable potential of the proposed approach to complex networks analysis is illustrated through case studies involving vulnerability analysis of technological networks and predictive analysis for social processes.

  15. Network architecture functional description and design

    SciTech Connect (OSTI)

    Stans, L.; Bencoe, M.; Brown, D.; Kelly, S.; Pierson, L.; Schaldach, C.

    1989-05-25

    This report provides a top level functional description and design for the development and implementation of the central network to support the next generation of SNL, Albuquerque supercomputer in a UNIX{reg sign} environment. It describes the network functions and provides an architecture and topology.

  16. Biological and Environmental Research Network Requirements

    SciTech Connect (OSTI)

    Balaji, V.; Boden, Tom; Cowley, Dave; Dart, Eli; Dattoria, Vince; Desai, Narayan; Egan, Rob; Foster, Ian; Goldstone, Robin; Gregurick, Susan; Houghton, John; Izaurralde, Cesar; Johnston, Bill; Joseph, Renu; Kleese-van Dam, Kerstin; Lipton, Mary; Monga, Inder; Pritchard, Matt; Rotman, Lauren; Strand, Gary; Stuart, Cory; Tatusova, Tatiana; Tierney, Brian; Thomas, Brian; Williams, Dean N.; Zurawski, Jason

    2013-09-01

    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.

  17. Advanced mobile networking, sensing, and controls.

    SciTech Connect (OSTI)

    Feddema, John Todd; Kilman, Dominique Marie; Byrne, Raymond Harry; Young, Joseph G.; Lewis, Christopher L.; Van Leeuwen, Brian P.; Robinett, Rush D. III; Harrington, John J.

    2005-03-01

    This report describes an integrated approach for designing communication, sensing, and control systems for mobile distributed systems. Graph theoretic methods are used to analyze the input/output reachability and structural controllability and observability of a decentralized system. Embedded in each network node, this analysis will automatically reconfigure an ad hoc communication network for the sensing and control task at hand. The graph analysis can also be used to create the optimal communication flow control based upon the spatial distribution of the network nodes. Edge coloring algorithms tell us that the minimum number of time slots in a planar network is equal to either the maximum number of adjacent nodes (or degree) of the undirected graph plus some small number. Therefore, the more spread out that the nodes are, the fewer number of time slots are needed for communication, and the smaller the latency between nodes. In a coupled system, this results in a more responsive sensor network and control system. Network protocols are developed to propagate this information, and distributed algorithms are developed to automatically adjust the number of time slots available for communication. These protocols and algorithms must be extremely efficient and only updated as network nodes move. In addition, queuing theory is used to analyze the delay characteristics of Carrier Sense Multiple Access (CSMA) networks. This report documents the analysis, simulation, and implementation of these algorithms performed under this Laboratory Directed Research and Development (LDRD) effort.

  18. Peeking Network States with Clustered Patterns

    SciTech Connect (OSTI)

    Kim, Jinoh; Sim, Alex

    2015-10-20

    Network traffic monitoring has long been a core element for effec- tive network management and security. However, it is still a chal- lenging task with a high degree of complexity for comprehensive analysis when considering multiple variables and ever-increasing traffic volumes to monitor. For example, one of the widely con- sidered approaches is to scrutinize probabilistic distributions, but it poses a scalability concern and multivariate analysis is not gen- erally supported due to the exponential increase of the complexity. In this work, we propose a novel method for network traffic moni- toring based on clustering, one of the powerful deep-learning tech- niques. We show that the new approach enables us to recognize clustered results as patterns representing the network states, which can then be utilized to evaluate “similarity” of network states over time. In addition, we define a new quantitative measure for the similarity between two compared network states observed in dif- ferent time windows, as a supportive means for intuitive analysis. Finally, we demonstrate the clustering-based network monitoring with public traffic traces, and show that the proposed approach us- ing the clustering method has a great opportunity for feasible, cost- effective network monitoring.

  19. Energy efficient sensor network implementations

    SciTech Connect (OSTI)

    Frigo, Janette R; Raby, Eric Y; Brennan, Sean M; Kulathumani, Vinod; Rosten, Ed; Wolinski, Christophe; Wagner, Charles; Charot, Francois

    2009-01-01

    In this paper, we discuss a low power embedded sensor node architecture we are developing for distributed sensor network systems deployed in a natural environment. In particular, we examine the sensor node for energy efficient processing-at-the-sensor. We analyze the following modes of operation; event detection, sleep(wake-up), data acquisition, data processing modes using low power, high performance embedded technology such as specialized embedded DSP processors and a low power FPGAs at the sensing node. We use compute intensive sensor node applications: an acoustic vehicle classifier (frequency domain analysis) and a video license plate identification application (learning algorithm) as a case study. We report performance and total energy usage for our system implementations and discuss the system architecture design trade offs.

  20. Nanofluidic interfaces in microfluidic networks

    DOE PAGES-Beta [OSTI]

    Millet, Larry J.; Doktycz, Mitchel John; Retterer, Scott T.

    2015-09-24

    The integration of nano- and microfluidic technologies enables the construction of tunable interfaces to physical and biological systems across relevant length scales. The ability to perform chemical manipulations of miniscule sample volumes is greatly enhanced through these technologies and extends the ability to manipulate and sample the local fluidic environments at subcellular, cellular and community or tissue scales. Here we describe the development of a flexible surface micromachining process for the creation of nanofluidic channel arrays integrated within SU-8 microfluidic networks. The use of a semi-porous, silicon rich, silicon nitride structural layer allows rapid release of the sacrificial silicon dioxidemore » during the nanochannel fabrication. Nanochannel openings that form the interface to biological samples are customized using focused ion beam milling. The compatibility of these interfaces with on-chip microbial culture is demonstrated.« less

  1. Nanofluidic interfaces in microfluidic networks

    SciTech Connect (OSTI)

    Millet, Larry J.; Doktycz, Mitchel John; Retterer, Scott T.

    2015-09-24

    The integration of nano- and microfluidic technologies enables the construction of tunable interfaces to physical and biological systems across relevant length scales. The ability to perform chemical manipulations of miniscule sample volumes is greatly enhanced through these technologies and extends the ability to manipulate and sample the local fluidic environments at subcellular, cellular and community or tissue scales. Here we describe the development of a flexible surface micromachining process for the creation of nanofluidic channel arrays integrated within SU-8 microfluidic networks. The use of a semi-porous, silicon rich, silicon nitride structural layer allows rapid release of the sacrificial silicon dioxide during the nanochannel fabrication. Nanochannel openings that form the interface to biological samples are customized using focused ion beam milling. The compatibility of these interfaces with on-chip microbial culture is demonstrated.

  2. Instantiating a Global Network Measurement Framework

    SciTech Connect (OSTI)

    Tierney, Brian L.; Boote, Jeff; Boyd, Eric; Brown, Aaron; Grigoriev, Maxim; Metzger, Joe; Swany, Martin; Zekauskas, Matt; Zurawski, Jason

    2008-12-15

    perfSONAR is a web services-based infrastructure for collecting and publishing network performance monitoring. A primary goal of perfSONAR is making it easier to solve end-to-end performance problems on paths crossing several networks. It contains a set of services delivering performance measurements in a federated environment. These services act as an intermediate layer, between the performance measurement tools and the diagnostic or visualization applications. This layer is aimed at making and exchanging performance measurements across multiple networks and multiple user communities, using well-defined protocols. This paper summarizes the key perfSONAR components, and describes how they are deployed by the US-LHC community to monitor the networks distributing LHC data from CERN. All monitoring data described herein is publicly available, and we hope the availability of this data via a standard schema will inspire others to contribute to the effort by building network data analysis applications that use perfSONAR.

  3. High-speed, intra-system networks

    SciTech Connect (OSTI)

    Quinn, Heather M; Graham, Paul S; Manuzzato, Andrea; Fairbanks, Tom; Dallmann, Nicholas; Desgeorges, Rose

    2010-06-28

    Recently, engineers have been studying on-payload networks for fast communication paths. Using intra-system networks as a means to connect devices together allows for a flexible payload design that does not rely on dedicated communication paths between devices. In this manner, the data flow architecture of the system can be dynamically reconfigured to allow data routes to be optimized for the application or configured to route around devices that are temporarily or permanently unavailable. To use intra-system networks, devices will need network controllers and switches. These devices are likely to be affected by single-event effects, which could affect data communication. In this paper we will present radiation data and performance analysis for using a Broadcom network controller in a neutron environment.

  4. ESnet - the energy sciences network strategic plan

    SciTech Connect (OSTI)

    1996-12-01

    The goal of the Energy Sciences Network (ESnet) Program is to provide a highly capable and reliable communications infrastructure that supports the Department of Energy`s (DOE) missions and enables DOE researchers to tap the power of leading-edge information technologies. ESnet provides an essential infrastructure that enhances national competitiveness and accelerates the development of future generations of high-performance, distributed computing systems and networks. These computing systems and networks are vital to modern scientific research. In addition, they enable development of new approaches to energy management, environmental restoration and waste management, national security, industrial processing, and health care, and also facilitate public access to government information. Extensive networks developed by the DOE`s high-energy physics and fusion energy research communities were the forerunners of the ESnet. These networks initially provided improved access to high-energy accelerator sites and to the Magnetic Fusion Energy Supercomputer Center, which opened at Lawrence Livermore National Laboratory in 1974.

  5. DOE Science Networking Challenge: Roadmap to 2008

    SciTech Connect (OSTI)

    R. Roy Whitney; Larry Price

    2003-06-01

    This report establishes a roadmap for a new approach to the DOE Science Networking and Services needed for science in the U.S. Department of Energy in the 21st century. It has become increasingly clear 2 that the network provided for DOE science in the past will not be adequate to keep that science competitive in the future. This roadmap, if implemented and followed during the next five years, will solve that problem. The past 5 years have seen a broad and general movement toward the assumption of and reliance on networked systems in all of the large new initiatives for DOE science. It is clear that the success of science depends increasingly on the ability of scientists to move large amounts of data, access computing and data resources, and collaborate in real time from multiple remote locations. It is also abundantly clear that business-as-usual in the network and information services that underpin the scientific collaborations will fall woefully short of what is needed. New capabilities such as computational and data grids, high-speed wireless networking, super-high-speed metro-scale networks, and cheap gigabit Ethernet have arrived in turn and have been enthusiastically incorporated into the arsenal of science, each permitting substantial new collaborative abilities and efficiencies. However, sophisticated structures and services using basic network connections can be used effectively only if the network infrastructure itself provides the necessary environment. Increasingly, the network must become a collaborative information exchange, with a core of higher-level services supported by network providers in addition to basic bandwidth and connectivity.

  6. E-print Network : Main View : Deep Federated Search

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    javascript. Home About Contact Us Help E-print Network Search Powered By Deep Web Technologies New Search Preferences E-print Network E-print Network Skip to main content FAQ *...

  7. Silver Spring Networks comments on DOE NBP RFI: Data Access ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Data Access Silver Spring Networks comments on DOE NBP RFI: Data Access Silver Spring Networks comments on DOE NBP RFI: Data Access Silver Spring Networks comments on DOE NBP RFI: ...

  8. High Energy Physics and Nuclear Physics Network Requirements...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: High Energy Physics and Nuclear Physics Network Requirements Citation Details In-Document Search Title: High Energy Physics and Nuclear Physics Network ...

  9. E-print Network home page -- Energy, science, and technology...

    Office of Scientific and Technical Information (OSTI)

    Energy, science, and technology for the research community Enter Search Terms Search Advanced Search The E-print Network is . . . . . . a vast, integrated network of electronic ...

  10. Best Practices for Fostering and Using Contractor Networks (101)

    Energy.gov [DOE]

    Better Buildings Residential Network Peer Exchange Call Series: Best Practices for Fostering and Using Contractor Networks (101), call slides and discussion summary.

  11. Active Network Management (Smart Grid Project) | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    Network Management (Smart Grid Project) Jump to: navigation, search Project Name Active Network Management Country United Kingdom Coordinates 55.378052, -3.435973 Loading...

  12. 21 Steps to Improve Cyber Security of SCADA Networks | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    SCADA Networks 21 Steps to Improve Cyber Security of SCADA Networks Supervisory control ... natural gas, gasoline, water, waste treatment, transportation) to all Americans. ...

  13. Reducing Configuration Complexity with Next Gen IoT Networks

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reducing Configuration Complexity with Next Gen IoT Networks Orama Inc. November, 2015 1 Network Lighting Controls Low Penetration - Why? * Commissioning is very time-consuming & ...

  14. Clean Economy Network-Rockies | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Economy Network-Rockies Jump to: navigation, search Name: Clean Economy Network-Rockies Place: Denver, CO Region: Rockies Area Website: rockies.cleaneconomynetwork.or Coordinates:...

  15. V-125: Cisco Connected Grid Network Management System Multiple...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5: Cisco Connected Grid Network Management System Multiple Vulnerabilities V-125: Cisco Connected Grid Network Management System Multiple Vulnerabilities April 3, 2013 - 1:44am...

  16. Solar Energy Sources SES Solar Inc formerly Electric Network...

    Open Energy Information (Open El) [EERE & EIA]

    SES Solar Inc formerly Electric Network com Jump to: navigation, search Name: Solar Energy Sources - SES Solar Inc (formerly Electric Network.com) Place: Vancouver, British...

  17. Renewable Energy Network of Entrepreneurs in Western New York...

    Open Energy Information (Open El) [EERE & EIA]

    York Jump to: navigation, search Logo: Renewable Energy Network of Entrepreneurs in Western New York Name: Renewable Energy Network of Entrepreneurs in Western New York Address:...

  18. World Renewable Energy Network WREN | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Renewable Energy Network WREN Jump to: navigation, search Name: World Renewable Energy Network (WREN) Place: Brighton, United Kingdom Zip: BN2 1YH Sector: Renewable Energy Product:...

  19. ESnet Support for WAN Data Movement Eli Dart, Network Engineer

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... use of the network is now gated on two things * End system resources, particularly ... to major science networks (CENIC, Internet2) * Performance Assurance using ...

  20. Fusion Energy Sciences Network Requirements Review Final Report

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Fusion Energy Sciences Network Requirements Review Final Report Office of Fusion Energy Sciences, DOE Office of Science Energy Sciences Network (ESnet) Germantown, Maryland August ...

  1. Wireless Sensor Network for Electric Transmission Line Monitoring...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Wireless Sensor Network for Electric Transmission Line Monitoring Citation Details In-Document Search Title: Wireless Sensor Network for Electric Transmission ...

  2. Blue Gene/Q Network Performance Counters Monitoring Library

    Energy Science and Technology Software Center (OSTI)

    2015-03-12

    BGQNCL is a library to monitor and record network performance counters on the 5D torus interconnection network of IBM's Blue Gene/Q platform.

  3. Representativeness-based Sampling Network Design for the State...

    Office of Scientific and Technical Information (OSTI)

    Representativeness-based Sampling Network Design for the State of Alaska Citation Details In-Document Search Title: Representativeness-based Sampling Network Design for the State...

  4. Representativeness-Based Sampling Network Design for the State...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Representativeness-Based Sampling Network Design for the State of Alaska Citation Details In-Document Search Title: Representativeness-Based Sampling Network...

  5. Better Buildings Network View | October 2014 | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    October 2014 Better Buildings Network View | October 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential ...

  6. V-120: EMC Smarts Network Configuration Manager Java RMI Access...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    0: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control V-120: EMC Smarts Network Configuration Manager Java RMI Access Control...

  7. Fact #855 January 12, 2015 Electric Vehicle Chargers by Network...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 January 12, 2015 Electric Vehicle Chargers by Network and State Fact 855 January 12, 2015 Electric Vehicle Chargers by Network and State The Department of Energy's Alternative ...

  8. Fact #855 January 12, 2015 Electric Vehicle Chargers by Network...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    5 January 12, 2015 Electric Vehicle Chargers by Network and State - Dataset Fact 855 January 12, 2015 Electric Vehicle Chargers by Network and State - Dataset Excel file with ...

  9. New York Industrial Partnership Network | Department of Energy

    Energy Savers

    York Industrial Partnership Network New York Industrial Partnership Network Map highlighting New York State Recognizing the potential for increased energy and cost savings, the New ...

  10. ASEM Green Independent Power Producers Network | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    ASEM Green Independent Power Producers Network Jump to: navigation, search Name: ASEM Green Independent Power Producers Network Place: Germany Sector: Renewable Energy Product: A...

  11. Network for ab initio Many-body Methods: Development, Education...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Miguel Morales is Prinicipal Investigator on Network for ab initio Many-body Methods: Development, Education and Training. Network for ab initio Many-body Methods: Development,...

  12. Emerson Network Power Co Ltd | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Power Co Ltd Jump to: navigation, search Name: Emerson Network Power Co Ltd Place: Canada Product: Power network developer. Involved in fuel cell power research consortia....

  13. Better Buildings Network View | September 2014 | Department of...

    Office of Environmental Management (EM)

    newsletter from the U.S. Department of Energy's Better Buildings Residential Network. ... Network View | December 2014 On-Bill Financing for Energy Efficiency Improvements Toolkit

  14. Better Buildings Residential Network: Lessons Learned: Peer Exchange...

    Energy Savers

    Buildings Residential Network: Lessons Learned: Peer Exchange Calls Better Buildings Residential Network: Lessons Learned: Peer Exchange Calls, from the U.S. Department of Energy. ...

  15. How Can the Network Meet Your Needs? | Department of Energy

    Energy Savers

    How Can the Network Meet Your Needs? Better Buildings Residential Program Peer Exchange ... More Documents & Publications Better Buildings Residential Network Orientation Key ...

  16. Residential Network Members Impact More Than 42,000 Households...

    Energy.gov (indexed) [DOE]

    row of townhomes. Eligible Better Buildings Residential Network members reported completing 27,563 home energy upgrades during 2013 as part of the Residential Network's first ...

  17. Better Buildings Residential Network Peer Exchange Call Series...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    3 Better Buildings Residential Network Better Buildings Residential Network: Connects energy efficiency programs and partners to share best practices to increase the ...

  18. Silver Spring Networks comments on DOE NBP RFI: Comms Requirements...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Comms Requirements Silver Spring Networks comments on DOE NBP RFI: Comms Requirements Comments of Silver Spring Networks on Implementing the National Broadband Plan by Studying the ...

  19. Comments of Tendril Networks, Inc. on DOE Request for Information...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tendril Networks, Inc. on DOE Request for Information (RFI) from the Department of Energy ... Comments of Tendril Networks, Inc. on DOE Request for Information (RFI) from the ...

  20. New Incubator Network to Help Clean-Energy Entrepreneurs - News...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    New Incubator Network to Help Clean-Energy Entrepreneurs February 4, 2015 The Energy ... Electric Power Research Institute (EPRI) have launched the Clean Energy Incubator Network. ...

  1. Kinetic analysis of complex metabolic networks

    SciTech Connect (OSTI)

    Stephanopoulos, G.

    1996-12-31

    A new methodology is presented for the analysis of complex metabolic networks with the goal of metabolite overproduction. The objective is to locate a small number of reaction steps in a network that have maximum impact on network flux amplification and whose rate can also be increased without functional network derangement. This method extends the concepts of Metabolic Control Analysis to groups of reactions and offers the means for calculating group control coefficients as measures of the control exercised by groups of reactions on the overall network fluxes and intracellular metabolite pools. It is further demonstrated that the optimal strategy for the effective increase of network fluxes, while maintaining an uninterrupted supply of intermediate metabolites, is through the coordinated amplification of multiple (as opposed to a single) reaction steps. Satisfying this requirement invokes the concept of the concentration control to coefficient, which emerges as a critical parameter in the identification of feasible enzymatic modifications with maximal impact on the network flux. A case study of aromatic aminoacid production is provided to illustrate these concepts.

  2. Integrated network design and scheduling problems :

    SciTech Connect (OSTI)

    Nurre, Sarah G.; Carlson, Jeffrey J.

    2014-01-01

    We consider the class of integrated network design and scheduling problems. These problems focus on selecting and scheduling operations that will change the characteristics of a network, while being speci cally concerned with the performance of the network over time. Motivating applications of INDS problems include infrastructure restoration after extreme events and building humanitarian distribution supply chains. While similar models have been proposed, no one has performed an extensive review of INDS problems from their complexity, network and scheduling characteristics, information, and solution methods. We examine INDS problems under a parallel identical machine scheduling environment where the performance of the network is evaluated by solving classic network optimization problems. We classify that all considered INDS problems as NP-Hard and propose a novel heuristic dispatching rule algorithm that selects and schedules sets of arcs based on their interactions in the network. We present computational analysis based on realistic data sets representing the infrastructures of coastal New Hanover County, North Carolina, lower Manhattan, New York, and a realistic arti cial community CLARC County. These tests demonstrate the importance of a dispatching rule to arrive at near-optimal solutions during real-time decision making activities. We extend INDS problems to incorporate release dates which represent the earliest an operation can be performed and exible release dates through the introduction of specialized machine(s) that can perform work to move the release date earlier in time. An online optimization setting is explored where the release date of a component is not known.

  3. Intrusion detection and monitoring for wireless networks.

    SciTech Connect (OSTI)

    Thomas, Eric D.; Van Randwyk, Jamie A.; Lee, Erik J.; Stephano, Amanda; Tabriz, Parisa; Pelon, Kristen; McCoy, Damon (University of Colorado, Boulder); Lodato, Mark; Hemingway, Franklin; Custer, Ryan P.; Averin, Dimitry; Franklin, Jason; Kilman, Dominique Marie

    2005-11-01

    Wireless computer networks are increasing exponentially around the world. They are being implemented in both the unlicensed radio frequency (RF) spectrum (IEEE 802.11a/b/g) and the licensed spectrum (e.g., Firetide [1] and Motorola Canopy [2]). Wireless networks operating in the unlicensed spectrum are by far the most popular wireless computer networks in existence. The open (i.e., proprietary) nature of the IEEE 802.11 protocols and the availability of ''free'' RF spectrum have encouraged many producers of enterprise and common off-the-shelf (COTS) computer networking equipment to jump into the wireless arena. Competition between these companies has driven down the price of 802.11 wireless networking equipment and has improved user experiences with such equipment. The end result has been an increased adoption of the equipment by businesses and consumers, the establishment of the Wi-Fi Alliance [3], and widespread use of the Alliance's ''Wi-Fi'' moniker to describe these networks. Consumers use 802.11 equipment at home to reduce the burden of running wires in existing construction, facilitate the sharing of broadband Internet services with roommates or neighbors, and increase their range of ''connectedness''. Private businesses and government entities (at all levels) are deploying wireless networks to reduce wiring costs, increase employee mobility, enable non-employees to access the Internet, and create an added revenue stream to their existing business models (coffee houses, airports, hotels, etc.). Municipalities (Philadelphia; San Francisco; Grand Haven, MI) are deploying wireless networks so they can bring broadband Internet access to places lacking such access; offer limited-speed broadband access to impoverished communities; offer broadband in places, such as marinas and state parks, that are passed over by traditional broadband providers; and provide themselves with higher quality, more complete network coverage for use by emergency responders and other

  4. Characterization of the Weatherization Assistance Program network

    SciTech Connect (OSTI)

    Mihlmester, P.E.; Koehler, W.C. Jr.; Beyer, M.A. . Applied Management Sciences Div.); Brown, M.A. ); Beschen, D.A. Jr. . Office of Weatherization Assistance Programs)

    1992-02-01

    The Characterization of the Weatherization Assistance Program (WAP) Network was designed to describe the national network of State and local agencies that provide WAP services to qualifying low-income households. The objective of this study was to profile the current WAP network. To achieve the objective, two national surveys were conducted: one survey collected data from 49 State WAP agencies (including the coterminous 48 States and the District of Columbia), and the second survey collected data from 920 (or 81 percent) of the local WAP agencies.

  5. Computationally Efficient Neural Network Intrusion Security Awareness

    SciTech Connect (OSTI)

    Todd Vollmer; Milos Manic

    2009-08-01

    An enhanced version of an algorithm to provide anomaly based intrusion detection alerts for cyber security state awareness is detailed. A unique aspect is the training of an error back-propagation neural network with intrusion detection rule features to provide a recognition basis. Network packet details are subsequently provided to the trained network to produce a classification. This leverages rule knowledge sets to produce classifications for anomaly based systems. Several test cases executed on ICMP protocol revealed a 60% identification rate of true positives. This rate matched the previous work, but 70% less memory was used and the run time was reduced to less than 1 second from 37 seconds.

  6. Web100-based Network Diagnostic Tool

    Energy Science and Technology Software Center (OSTI)

    2003-03-20

    NDT is a client/server based network diagnostic tool developed to aid in finding network performance and configuration problems. The tool measures data transfer rates between two internet hosts (client and server). It also gathers detailed TCP statistical variable counters supplied by the Web100 modified server and uses these TCP variables to compute the theoretical performance rate between the two internet hosts. It then compares these analytical results with the measured results to determine if performancemore » or configuration problems exist and translates these results into plain text messages to aid users and network operators in resolving reported problems.« less

  7. Visual Matrix Clustering of Social Networks

    SciTech Connect (OSTI)

    Wong, Pak C.; Mackey, Patrick S.; Foote, Harlan P.; May, Richard A.

    2013-07-01

    The prevailing choices to graphically represent a social network in todays literature are a node-link graph layout and an adjacency matrix. Both visualization techniques have unique strengths and weaknesses when applied to different domain applications. In this article, we focus our discussion on adjacency matrix and how to turn the matrix-based visualization technique from merely showing pairwise associations among network actors (or graph nodes) to depicting clusters of a social network. We also use node-link layouts to supplement the discussion.

  8. Software security for a network storage service

    SciTech Connect (OSTI)

    Haynes, R.A.; Kelly, S.M.

    1992-09-01

    In 1991, Sandia National Laboratories acquired a Network Storage Service (NSS) as a result of a fully competitive procurement. The Network Storage Service, which provides access to over a terabyte of data storage in a two-tiered hierarchy, had minimal software security features. Before the NSS could be placed into production, it had to be accredited by the Department of Energy, Sandia`s accrediting authority. Sandia was faced with implementing security features to allow the NSS to be operated in its secure computing network, which is a single security clearance, multiple data security level environment. This paper describes the software security design alternatives that were considered and what was ultimately implemented.

  9. Software security for a network storage service

    SciTech Connect (OSTI)

    Haynes, R.A.; Kelly, S.M.

    1992-01-01

    In 1991, Sandia National Laboratories acquired a Network Storage Service (NSS) as a result of a fully competitive procurement. The Network Storage Service, which provides access to over a terabyte of data storage in a two-tiered hierarchy, had minimal software security features. Before the NSS could be placed into production, it had to be accredited by the Department of Energy, Sandia's accrediting authority. Sandia was faced with implementing security features to allow the NSS to be operated in its secure computing network, which is a single security clearance, multiple data security level environment. This paper describes the software security design alternatives that were considered and what was ultimately implemented.

  10. Silicon-embedded copper nanostructure network for high energy storage

    DOE Patents [OSTI]

    Yu, Tianyue

    2016-03-15

    Provided herein are nanostructure networks having high energy storage, electrochemically active electrode materials including nanostructure networks having high energy storage, as well as electrodes and batteries including the nanostructure networks having high energy storage. According to various implementations, the nanostructure networks have high energy density as well as long cycle life. In some implementations, the nanostructure networks include a conductive network embedded with electrochemically active material. In some implementations, silicon is used as the electrochemically active material. The conductive network may be a metal network such as a copper nanostructure network. Methods of manufacturing the nanostructure networks and electrodes are provided. In some implementations, metal nanostructures can be synthesized in a solution that contains silicon powder to make a composite network structure that contains both. The metal nanostructure growth can nucleate in solution and on silicon nanostructure surfaces.

  11. December 2015 National Idling Reduction Network News

    Energy.gov [DOE]

    This is the December 2015 edition of the National Idling Reduction Network News, an e-newsletter that reports solicitations for funding, regulatory changes, awards and recognition, reports and other resources of interest, upcoming meetings and events, and manufacturers’ announcements.

  12. Wireless Sensor Networks: Monitoring and Control

    SciTech Connect (OSTI)

    Hastbacka, Mildred; Ponoum, Ratcharit; Bouza, Antonio

    2013-05-31

    The article discusses wireless sensor technologies for building energy monitoring and control. This article, also, addresses wireless sensor networks as well as benefits and challenges of using wireless sensors. The energy savings and market potential of wireless sensors are reviewed.

  13. Network Optimization Models (RNAS and ATOM) | NISAC

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    been used to study policy options concerning the movement of toxic chemicals by rail. Air Transport Optimization Model (ATOM) The TOM is a network-optimization model designed to...

  14. Global Energy Network Institute | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    inlineLabel":"","visitedicon":"" Hide Map References: Global Energy Network Institute Web Site1 This article is a stub. You can help OpenEI by expanding it. Global Energy...

  15. EPA National Environmental Information Exchange Network Grant...

    Energy.gov (indexed) [DOE]

    5 5:00PM EST U.S. Environmental Protection Agency The U.S. Environmental Protection Agency is accepting applications for the National Environmental Information Exchange Network...

  16. Belief network algorithms: A study of performance

    SciTech Connect (OSTI)

    Jitnah, N.

    1996-12-31

    This abstract gives an overview of the work. We present a survey of Belief Network algorithms and propose a domain characterization system to be used as a basis for algorithm comparison and for predicting algorithm performance.

  17. Joint Implementation Network (JIN) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    2.2 JIN Programs 3 References About Joint Implementation Network (JIN) was established in 1995 as knowledge centre for climate change policy issues in general and the concept of...

  18. Data Network Weather Service Reporting - Final Report

    SciTech Connect (OSTI)

    Michael Frey

    2012-08-30

    A final report is made of a three-year effort to develop a new forecasting paradigm for computer network performance. This effort was made in co-ordination with Fermi Lab's construction of e-Weather Center.

  19. Advanced Scientific Computing Research Network Requirements

    SciTech Connect (OSTI)

    Bacon, Charles; Bell, Greg; Canon, Shane; Dart, Eli; Dattoria, Vince; Goodwin, Dave; Lee, Jason; Hicks, Susan; Holohan, Ed; Klasky, Scott; Lauzon, Carolyn; Rogers, Jim; Shipman, Galen; Skinner, David; Tierney, Brian

    2013-03-08

    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 to be a highly successful enabler of scientific discovery for over 25 years. In October 2012, ESnet and the Office of Advanced Scientific Computing Research (ASCR) of the DOE SC organized a review to characterize the networking requirements of the programs funded by the ASCR program office. The requirements identified at the review are summarized in the Findings section, and are described in more detail in the body of the report.

  20. Solar Instructor Training Network Frequently Asked Questions

    Energy.gov [DOE]

    These frequently asked questions (FAQs) relate to the solar instructor training network. This project was launched by the U.S. Department of Energy (DOE) Solar Energy Technologies Program (SETP or...