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Sample records for obtaining personal computer

  1. Personal Computer Inventory System

    Energy Science and Technology Software Center (OSTI)

    1993-10-04

    PCIS is a database software system that is used to maintain a personal computer hardware and software inventory, track transfers of hardware and software, and provide reports.

  2. Personal Computing Equipment | Open Energy Information

    Open Energy Info (EERE)

    Computing Equipment Jump to: navigation, search TODO: Add description List of Personal Computing Equipment Incentives Retrieved from "http:en.openei.orgwindex.php?titlePersona...

  3. Semiconductor Device Analysis on Personal Computers

    Energy Science and Technology Software Center (OSTI)

    1993-02-08

    PC-1D models the internal operation of bipolar semiconductor devices by solving for the concentrations and quasi-one-dimensional flow of electrons and holes resulting from either electrical or optical excitation. PC-1D uses the same detailed physical models incorporated in mainframe computer programs, yet runs efficiently on personal computers. PC-1D was originally developed with DOE funding to analyze solar cells. That continues to be its primary mode of usage, with registered copies in regular use at more thanmore » 100 locations worldwide. The program has been successfully applied to the analysis of silicon, gallium-arsenide, and indium-phosphide solar cells. The program is also suitable for modeling bipolar transistors and diodes, including heterojunction devices. Its easy-to-use graphical interface makes it useful as a teaching tool as well.« less

  4. Human-computer interface incorporating personal and application domains

    DOE Patents [OSTI]

    Anderson, Thomas G.

    2004-04-20

    The present invention provides a human-computer interface. The interface includes provision of an application domain, for example corresponding to a three-dimensional application. The user is allowed to navigate and interact with the application domain. The interface also includes a personal domain, offering the user controls and interaction distinct from the application domain. The separation into two domains allows the most suitable interface methods in each: for example, three-dimensional navigation in the application domain, and two- or three-dimensional controls in the personal domain. Transitions between the application domain and the personal domain are under control of the user, and the transition method is substantially independent of the navigation in the application domain. For example, the user can fly through a three-dimensional application domain, and always move to the personal domain by moving a cursor near one extreme of the display.

  5. Human-computer interface incorporating personal and application domains

    DOE Patents [OSTI]

    Anderson, Thomas G. (Albuquerque, NM)

    2011-03-29

    The present invention provides a human-computer interface. The interface includes provision of an application domain, for example corresponding to a three-dimensional application. The user is allowed to navigate and interact with the application domain. The interface also includes a personal domain, offering the user controls and interaction distinct from the application domain. The separation into two domains allows the most suitable interface methods in each: for example, three-dimensional navigation in the application domain, and two- or three-dimensional controls in the personal domain. Transitions between the application domain and the personal domain are under control of the user, and the transition method is substantially independent of the navigation in the application domain. For example, the user can fly through a three-dimensional application domain, and always move to the personal domain by moving a cursor near one extreme of the display.

  6. Sixties Counterculture and the Personal Computer (What the Dormouse Said: How the Sixties Counterculture Shaped the Personal Computer Industry)

    SciTech Connect (OSTI)

    Markoff, John

    2006-01-30

    The Internet is arguably the largest accumulation of information in one place, yet its own beginnings remain largely undocumented. In researching his recent book, John Markoff collected oral histories from many of the Stanford-area researchers whose technological inventions defined the both modern internet and personal computer. In his talk, Markoff will explore the role that the counterculture and anti war movements of the 1960s and 1970s played in the work of these researchers as they created what would later be called the 'world's largest legal accumulation of wealth.'

  7. Method and apparatus for obtaining stack traceback data for multiple computing nodes of a massively parallel computer system

    DOE Patents [OSTI]

    Gooding, Thomas Michael (Rochester, MN); McCarthy, Patrick Joseph (Rochester, MN)

    2010-03-02

    A data collector for a massively parallel computer system obtains call-return stack traceback data for multiple nodes by retrieving partial call-return stack traceback data from each node, grouping the nodes in subsets according to the partial traceback data, and obtaining further call-return stack traceback data from a representative node or nodes of each subset. Preferably, the partial data is a respective instruction address from each node, nodes having identical instruction address being grouped together in the same subset. Preferably, a single node of each subset is chosen and full stack traceback data is retrieved from the call-return stack within the chosen node.

  8. PC-DYMAC: Personal Computer---DYnamic Materials ACcounting

    SciTech Connect (OSTI)

    Jackson, B.G.

    1989-11-01

    This manual was designed to provide complete documentation for the computer system used by the EBR-II Fuels and Materials Department, Argonne National Laboratory-West (ANL-W) for accountability of special nuclear materials (SNM). This document includes background information on the operation of the Fuel Manufacturing Facility (FMF), instructions on computer operations in correlation with production and a detailed manual for DYMAC operation. 60 figs.

  9. Acceleration of the matrix multiplication of Radiance three phase daylighting simulations with parallel computing on heterogeneous hardware of personal computer

    SciTech Connect (OSTI)

    University of Miami; Zuo, Wangda; McNeil, Andrew; Wetter, Michael; Lee, Eleanor S.

    2013-04-30

    Building designers are increasingly relying on complex fenestration systems to reduce energy consumed for lighting and HVAC in low energy buildings. Radiance, a lighting simulation program, has been used to conduct daylighting simulations for complex fenestration systems. Depending on the configurations, the simulation can take hours or even days using a personal computer. This paper describes how to accelerate the matrix multiplication portion of a Radiance three-phase daylight simulation by conducting parallel computing on heterogeneous hardware of a personal computer. The algorithm was optimized and the computational part was implemented in parallel using OpenCL. The speed of new approach was evaluated using various daylighting simulation cases on a multicore central processing unit and a graphics processing unit. Based on the measurements and analysis of the time usage for the Radiance daylighting simulation, further speedups can be achieved by using fast I/O devices and storing the data in a binary format.

  10. Energy Use and Power Levels in New Monitors and Personal Computers

    SciTech Connect (OSTI)

    Roberson, Judy A.; Homan, Gregory K.; Mahajan, Akshay; Nordman, Bruce; Webber, Carrie A.; Brown, Richard E.; McWhinney, Marla; Koomey, Jonathan G.

    2002-07-23

    Our research was conducted in support of the EPA ENERGY STAR Office Equipment program, whose goal is to reduce the amount of electricity consumed by office equipment in the U.S. The most energy-efficient models in each office equipment category are eligible for the ENERGY STAR label, which consumers can use to identify and select efficient products. As the efficiency of each category improves over time, the ENERGY STAR criteria need to be revised accordingly. The purpose of this study was to provide reliable data on the energy consumption of the newest personal computers and monitors that the EPA can use to evaluate revisions to current ENERGY STAR criteria as well as to improve the accuracy of ENERGY STAR program savings estimates. We report the results of measuring the power consumption and power management capabilities of a sample of new monitors and computers. These results will be used to improve estimates of program energy savings and carbon emission reductions, and to inform rev isions of the ENERGY STAR criteria for these products. Our sample consists of 35 monitors and 26 computers manufactured between July 2000 and October 2001; it includes cathode ray tube (CRT) and liquid crystal display (LCD) monitors, Macintosh and Intel-architecture computers, desktop and laptop computers, and integrated computer systems, in which power consumption of the computer and monitor cannot be measured separately. For each machine we measured power consumption when off, on, and in each low-power level. We identify trends in and opportunities to reduce power consumption in new personal computers and monitors. Our results include a trend among monitor manufacturers to provide a single very low low-power level, well below the current ENERGY STAR criteria for sleep power consumption. These very low sleep power results mean that energy consumed when monitors are off or in active use has become more important in terms of contribution to the overall unit energy consumption (UEC). Cur rent ENERGY STAR monitor and computer criteria do not specify off or on power, but our results suggest opportunities for saving energy in these modes. Also, significant differences between CRT and LCD technology, and between field-measured and manufacturer-reported power levels reveal the need for standard methods and metrics for measuring and comparing monitor power consumption.

  11. Efficiency Improvement Opportunities for Personal Computer Monitors. Implications for Market Transformation Programs

    SciTech Connect (OSTI)

    Park, Won Young; Phadke, Amol; Shah, Nihar

    2012-06-29

    Displays account for a significant portion of electricity consumed in personal computer (PC) use, and global PC monitor shipments are expected to continue to increase. We assess the market trends in the energy efficiency of PC monitors that are likely to occur without any additional policy intervention and estimate that display efficiency will likely improve by over 40% by 2015 compared to todays technology. We evaluate the cost effectiveness of a key technology which further improves efficiency beyond this level by at least 20% and find that its adoption is cost effective. We assess the potential for further improving efficiency taking into account the recent development of universal serial bus (USB) powered liquid crystal display (LCD) monitors and find that the current technology available and deployed in USB powered monitors has the potential to deeply reduce energy consumption by as much as 50%. We provide insights for policies and programs that can be used to accelerate the adoption of efficient technologies to capture global energy saving potential from PC monitors which we estimate to be 9.2 terawatt-hours [TWh] per year in 2015.

  12. Power levels in office equipment: Measurements of new monitors and personal computers

    SciTech Connect (OSTI)

    Roberson, Judy A.; Brown, Richard E.; Nordman, Bruce; Webber, Carrie A.; Homan, Gregory H.; Mahajan, Akshay; McWhinney, Marla; Koomey, Jonathan G.

    2002-05-14

    Electronic office equipment has proliferated rapidly over the last twenty years and is projected to continue growing in the future. Efforts to reduce the growth in office equipment energy use have focused on power management to reduce power consumption of electronic devices when not being used for their primary purpose. The EPA ENERGY STAR[registered trademark] program has been instrumental in gaining widespread support for power management in office equipment, and accurate information about the energy used by office equipment in all power levels is important to improving program design and evaluation. This paper presents the results of a field study conducted during 2001 to measure the power levels of new monitors and personal computers. We measured off, on, and low-power levels in about 60 units manufactured since July 2000. The paper summarizes power data collected, explores differences within the sample (e.g., between CRT and LCD monitors), and discusses some issues that arise in m etering office equipment. We also present conclusions to help improve the success of future power management programs.Our findings include a trend among monitor manufacturers to provide a single very low low-power level, and the need to standardize methods for measuring monitor on power, to more accurately estimate the annual energy consumption of office equipment, as well as actual and potential energy savings from power management.

  13. Measured energy savings and performance of power-managed personal computers and monitors

    SciTech Connect (OSTI)

    Nordman, B.; Piette, M.A.; Kinney, K.

    1996-08-01

    Personal computers and monitors are estimated to use 14 billion kWh/year of electricity, with power management potentially saving $600 million/year by the year 2000. The effort to capture these savings is lead by the US Environmental Protection Agency`s Energy Star program, which specifies a 30W maximum demand for the computer and for the monitor when in a {open_quote}sleep{close_quote} or idle mode. In this paper the authors discuss measured energy use and estimated savings for power-managed (Energy Star compliant) PCs and monitors. They collected electricity use measurements of six power-managed PCs and monitors in their office and five from two other research projects. The devices are diverse in machine type, use patterns, and context. The analysis method estimates the time spent in each system operating mode (off, low-, and full-power) and combines these with real power measurements to derive hours of use per mode, energy use, and energy savings. Three schedules are explored in the {open_quotes}As-operated,{close_quotes} {open_quotes}Standardized,{close_quotes} and `Maximum` savings estimates. Energy savings are established by comparing the measurements to a baseline with power management disabled. As-operated energy savings for the eleven PCs and monitors ranged from zero to 75 kWh/year. Under the standard operating schedule (on 20% of nights and weekends), the savings are about 200 kWh/year. An audit of power management features and configurations for several dozen Energy Star machines found only 11% of CPU`s fully enabled and about two thirds of monitors were successfully power managed. The highest priority for greater power management savings is to enable monitors, as opposed to CPU`s, since they are generally easier to configure, less likely to interfere with system operation, and have greater savings. The difficulties in properly configuring PCs and monitors is the largest current barrier to achieving the savings potential from power management.

  14. Viscosity index calculated by program in GW-basic for personal computers

    SciTech Connect (OSTI)

    Anaya, C.; Bermudez, O. )

    1988-12-26

    A computer program has been developed to calculate the viscosity index of oils when viscosities at two temperatures are known.

  15. computers

    National Nuclear Security Administration (NNSA)

    Each successive generation of computing system has provided greater computing power and energy efficiency.

    CTS-1 clusters will support NNSA's Life Extension Program and...

  16. computers

    National Nuclear Security Administration (NNSA)

    California.

    Retired computers used for cybersecurity research at Sandia National...

  17. Computer

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

    I. INTRODUCTION This paper presents several computational tools required for processing images of a heavy ion beam and estimating the magnetic field within a plasma. The...

  18. When worlds collide - Mac to MS-DOS. [Data transfer to and from Apple Macintosh computers and MS-DOS based personal computers

    SciTech Connect (OSTI)

    Busbey, A.B.

    1989-04-01

    A number of methods and products, both hardware and software, to allow data exchange between Apple Macintosh computers and MS-DOS based systems. These included serial null modem connections, MS-DOS hardware and/or software emulation, MS-DOS disk-reading hardware and networking.

  19. Computing

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

    Office of Advanced Scientific Computing Research in the Department of Energy Office of Science under contract number DE-AC02-05CH11231. ! Application and System Memory Use, Configuration, and Problems on Bassi Richard Gerber Lawrence Berkeley National Laboratory NERSC User Services ScicomP 13 Garching bei München, Germany, July 17, 2007 ScicomP 13, July 17, 2007, Garching Overview * About Bassi * Memory on Bassi * Large Page Memory (It's Great!) * System Configuration * Large Page

  20. Computations

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

    Computations - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

    1. Computing Information

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

      here you can find information relating to: Obtaining the right computer accounts. Using NIC terminals. Using BooNE's Computing Resources, including: Choosing your desktop....

    2. Computing Videos

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

      Computing Videos Computing

    3. Personal Property

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

      2015-06-09

      This Guide provides non-regulatory guidance and information to assist DOE organizations and contractors in implementing the DOE-wide and site-specific personal property management programs. Supersedes DOE G 580.1-1.

    4. Computers in Commercial Buildings

      U.S. Energy Information Administration (EIA) Indexed Site

      Government-owned buildings of all types, had, on average, more than one computer per person (1,104 computers per thousand employees). They also had a fairly high ratio of...

    5. Personal Property

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

      2014-10-16

      This Guide provides non-regulatory guidance and information to assist DOE organizations and contractors in implementing the DOE-wide and site-specific personal property management programs. It supplements the policy, requirements, and responsibilities information contained in the DOE Order cited above and clarifies the regulatory requirements contained in the Federal Property Management Regulation (FMR) and specific contracts.

    6. Computer Accounts | Stanford Synchrotron Radiation Lightsource

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

      Computer Accounts Each user group must have a computer account. Additionally, all persons using these accounts are responsible for understanding and complying with the terms...

    7. Table 1. Personal Computers and Computer Terminals in Commercial...

      U.S. Energy Information Administration (EIA) Indexed Site

      75,262 43,003 732 571 Principal Building Activity Assembly 596 6,740 6,840 1,763 262 258 Education 309 7,740 9,495 8,046 1,039 847 Food Sales 137 642 652 206 321 316 Food Service...

    8. Personal Exemption | Open Energy Information

      Open Energy Info (EERE)

      Fuel Vehicles (Oklahoma) Personal Exemption Personal Exemption Oklahoma Residential Methanol No Residential Energy Conservation Subsidy Exclusion (Personal) (Federal)...

    9. Inexpensive computer data-acquisition system

      SciTech Connect (OSTI)

      Galvin, J.E.; Brown, I.G.

      1985-10-01

      A system based on an Apple II+ personal computer is used for on-line monitoring of ion-beam characteristics in accelerator ion source development.

    10. Personalized professional content recommendation

      DOE Patents [OSTI]

      Xu, Songhua

      2015-10-27

      A personalized content recommendation system includes a client interface configured to automatically monitor a user's information data stream transmitted on the Internet. A hybrid contextual behavioral and collaborative personal interest inference engine resident to a non-transient media generates automatic predictions about the interests of individual users of the system. A database server retains the user's personal interest profile based on a plurality of monitored information. The system also includes a server programmed to filter items in an incoming information stream with the personal interest profile and is further programmed to identify only those items of the incoming information stream that substantially match the personal interest profile.

    11. Personalized professional content recommendation

      DOE Patents [OSTI]

      Xu, Songhua

      2015-11-05

      A personalized content recommendation system includes a client interface configured to automatically monitor a user's information data stream transmitted on the Internet. A hybrid contextual behavioral and collaborative personal interest inference engine resident to a non-transient media generates automatic predictions about the interests of individual users of the system. A database server retains the user's personal interest profile based on a plurality of monitored information. The system also includes a server programmed to filter items in an incoming information stream with the personal interest profile and is further programmed to identify only those items of the incoming information stream that substantially match the personal interest profile.

    12. Computation & Simulation > Theory & Computation > Research >...

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

      it. Click above to view. computational2 computational3 In This Section Computation & Simulation Computation & Simulation Extensive combinatorial results and ongoing basic...

    13. An accurate and efficient computational protocol for obtaining the complete basis set limits of the binding energies of water clusters at the MP2 and CCSD(T) levels of theory: Application to (H?O)m, m=2-6, 8, 11, 16 and 17

      SciTech Connect (OSTI)

      Miliordos, Evangelos; Xantheas, Sotiris S.

      2015-06-21

      We report MP2 and CCSD(T) binding energies with basis sets up to pentuple zeta quality for the m = 2-6, 8 clusters. Or best CCSD(T)/CBS estimates are -4.99 kcal/mol (dimer), -15.77 kcal/mol (trimer), -27.39 kcal/mol (tetramer), -35.9 0.3 kcal/mol (pentamer), -46.2 0.3 kcal/mol (prism hexamer), -45.9 0.3 kcal/mol (cage hexamer), -45.4 0.3 kcal/mol (book hexamer), -44.3 0.3 kcal/mol (ring hexamer), -73.0 0.5 kcal/mol (D2d octamer) and -72.9 0.5 kcal/mol (S4 octamer). We have found that the percentage of both the uncorrected (dimer) and BSSE-corrected (dimerCPe) binding energies recovered with respect to the CBS limit falls into a narrow range for each basis set for all clusters and in addition this range was found to decrease upon increasing the basis set. Relatively accurate estimates (within < 0.5%) of the CBS limits can be obtained when using the 2/3, 1/3 (for the AVDZ set) or the , (for the AVTZ, AVQZ and AV5Z sets) mixing ratio between dimere and dimerCPe. Based on those findings we propose an accurate and efficient computational protocol that can be used to estimate accurate binding energies of clusters at the MP2 (for up to 100 molecules) and CCSD(T) (for up to 30 molecules) levels of theory. This work was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences. Pacific Northwest National Laboratory (PNNL) is a multi program national laboratory operated for DOE by Battelle. This research also used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. AC02-05CH11231.

    14. Personally Identifiable Information

      Broader source: Energy.gov [DOE]

      Websites and applications that collect data on individuals are gathering personally identifiable information (PII). PII is also often collected for customer surveys or user experience (UX) research.

    15. Headquarters Personal Property Management

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

      2004-10-25

      To establish procedures for managing Government personal property owned or leased by the Department of Energy and in the custody of DOE Headquarters employees, including those in the National Nuclear Security Administration. Cancels DOE HQ O 580.1A

    16. Protecting your personal information

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

      Protecting your personal information Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit Protecting your personal information Quantum cryptography keeps data secure from cyber thieves October 1, 2014 Mass-producible quantum smart card and fiber optics cable. Mass-producible quantum smart card and fiber optics cable. Contact Community Programs Director Kurt Steinhaus Email Editor Ute Haker Email

    17. Energy Efficient Computer Use | Department of Energy

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

      Electricity & Fuel » Appliances & Electronics » Energy Efficient Computer Use Energy Efficient Computer Use Use sleep mode and power management features on your computer to save money on your energy bill. Use sleep mode and power management features on your computer to save money on your energy bill. If you wonder when you should turn off your personal computer for energy savings, here are some general guidelines to help you make that decision. Though there is a small surge in energy

    18. Compute nodes

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

      Compute nodes Compute nodes Click here to see more detailed hierachical map of the topology of a compute node. Last edited: 2016-02-01 08:07:08

    19. Excessing of Computers Used for Unclassified Controlled Information...

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

      of approxiinately 800 infomations ystems, including up to 11 5,000 personal computers, many powerful supercomputers, numerous servers, and a broad array of related...

    20. QBox | Argonne Leadership Computing Facility

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

      computers. Obtaining Qbox http:eslab.ucdavis.edusoftwareqbox Building Qbox for Blue GeneQ Qbox requires the standard math libraries plus the Xerces-C http:...

    1. Computer System,

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

      undergraduate summer institute http:isti.lanl.gov (Educational Prog) 2016 Computer System, Cluster, and Networking Summer Institute Purpose The Computer System,...

    2. Computing and Computational Sciences Directorate - Computer Science...

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

      AWARD Winners: Jess Gehin; Jackie Isaacs; Douglas Kothe; Debbie McCoy; Bonnie Nestor; John Turner; Gilbert Weigand Organization(s): Nuclear Technology Program; Computing and...

    3. Computing Sciences

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

      Division The Computational Research Division conducts research and development in mathematical modeling and simulation, algorithm design, data storage, management and...

    4. Computing Resources

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

      Cluster-Image TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Computing Resources The TRACC Computational Clusters With the addition of a new cluster called Zephyr that was made operational in September of this year (2012), TRACC now offers two clusters to choose from: Zephyr and our original cluster that has now been named Phoenix. Zephyr was acquired from Atipa technologies, and it is a 92-node system with each node having two AMD

    5. Treatment of biomass to obtain ethanol

      DOE Patents [OSTI]

      Dunson, Jr., James B. (Newark, DE); Elander, Richard T. (Evergreen, CO); Tucker, III, Melvin P. (Lakewood, CO); Hennessey, Susan Marie (Avondale, PA)

      2011-08-16

      Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

    6. Personal continuous air monitor

      DOE Patents [OSTI]

      Morgan, Ronald G.; Salazar, Samuel A.

      2000-01-01

      A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

    7. Compute Nodes

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

      Compute Nodes Compute Nodes Quad CoreAMDOpteronprocessor Compute Node Configuration 9,572 nodes 1 quad-core AMD 'Budapest' 2.3 GHz processor per node 4 cores per node (38,288 total cores) 8 GB DDR3 800 MHz memory per node Peak Gflop rate 9.2 Gflops/core 36.8 Gflops/node 352 Tflops for the entire machine Each core has their own L1 and L2 caches, with 64 KB and 512KB respectively 2 MB L3 cache shared among the 4 cores Compute Node Software By default the compute nodes run a restricted low-overhead

    8. Personal Property Policy | Department of Energy

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

      Personal Property Policy Personal Property Policy Personal Property Policy The DOE Personal Property Policy Division is responsible for development and oversight of the Department's personal property management program; establishes policies, standards, and guidance in accordance with applicable laws, regulations and sound personal property management practices and standards. Additionally MA-653: Advises and provides staff assistance to headquarters and field organizations that perform personal

    9. List of Personal Computing Equipment Incentives | Open Energy...

      Open Energy Info (EERE)

      Alexandria Light and Power - Commercial Energy Efficiency Rebate Program (Minnesota) Utility Rebate Program Minnesota Commercial Industrial Central Air conditioners Chillers...

    10. Computer disk with personal information of Department of Energy...

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

      to one free credit report from each agency per year. Employees can also place a 90-day "fraud alert" on their file through the above site or by calling one of the credit reporting...

    11. Personal annunciation device

      DOE Patents [OSTI]

      Angelo, Peter; Younkin, James; DeMint, Paul

      2011-01-25

      A personal annunciation device (PAD) providing, in an area of interest, compensatory annunciation of the presence of an abnormal condition in a hazardous area and accountability of the user of the PAD. Compensatory annunciation supplements primary annunciation provided by an emergency notification system (ENS). A detection system detects an abnormal condition, and a wireless transmission system transmits a wireless transmission to the PAD. The PAD has a housing enclosing the components of the PAD including a communication module for receiving the wireless transmission, a power supply, processor, memory, annunciation system, and RFID module. The RFID module has an RFID receiver that listens for an RFID transmission from an RFID reader disposed in a portal of an area of interest. The PAD identifies the transmission and changes its operating state based on the transmission. The RFID readers recognize, record, and transmit the state of the PAD to a base station providing accountability of the wearer.

    12. Computer Science

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

      Cite Seer Department of Energy provided open access science research citations in chemistry, physics, materials, engineering, and computer science IEEE Xplore Full text...

    13. Computer Security

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

      Computer Security All JLF participants must fully comply with all LLNL computer security regulations and procedures. A laptop entering or leaving B-174 for the sole use by a US citizen and so configured, and requiring no IP address, need not be registered for use in the JLF. By September 2009, it is expected that computers for use by Foreign National Investigators will have no special provisions. Notify maricle1@llnl.gov of all other computers entering, leaving, or being moved within B 174. Use

    14. 2009 Energy Expenditure Per Person | Department of Energy

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

      Energy Expenditure Per Person 2009 Energy Expenditure Per Person 2009 Energy Expenditure Per Person...

    15. Computing and Computational Sciences Directorate - Divisions

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

      CCSD Divisions Computational Sciences and Engineering Computer Sciences and Mathematics Information Technolgoy Services Joint Institute for Computational Sciences National Center for Computational Sciences

    16. PIA - Human Resources - Personal Information Change Request ...

      Energy Savers [EERE]

      Human Resources - Personal Information Change Request - Idaho National Engineering Laboratory PIA - Human Resources - Personal Information Change Request - Idaho National...

    17. Government Personal Property Asset Management

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

      1998-05-11

      Establishes procedures for managing Government personal property owned or leased by and in the custody of Department of Energy (DOE) Headquarters employees. Cancels HQ 1400.1.

    18. Packet personal radiation monitor

      DOE Patents [OSTI]

      Phelps, James E. (Knoxville, TN)

      1989-01-01

      A personal radiation monitor of the chirper type is provided for detecting ionizing radiation. A battery powered high voltage power supply is used to generate and apply a high voltage bias to a G-M tube radiation sensor. The high voltage is monitored by a low-loss sensing network which generates a feedback signal to control the high voltage power supply such that the high voltage bias is recharged to +500 VDC when the current pulses of the sensor, generated by the detection of ionizing radiation events, discharges the high voltage bias to +450 VDC. During the high voltage recharge period an audio transducer is activated to produce an audible "chirp". The rate of the "chirps" is controlled by the rate at which the high voltage bias is recharged, which is proportional to the radiation field intensity to which the sensor is exposed. The chirp rate sensitivity is set to be approximately 1.5 (chirps/min/MR/hr.). The G-M tube sensor is used in a current sensing mode so that the device does not paralyze in a high radiation field.

    19. Packet personal radiation monitor

      DOE Patents [OSTI]

      Phelps, J.E.

      1988-03-31

      A personal radiation monitor of the chirper type is provided for detecting ionizing radiation. A battery powered high voltage power supply is used to generate and apply a high voltage bias to a G-M tube radiation sensor. The high voltage is monitored by a low-loss sensing network which generates a feedback signal to control the high voltage power supply such that the high voltage bias is recharged to +500 VDC when the current pulses of the sensor, generated by the detection of ionizing radiatonevents, discharges the high voltage bias to +450 VDC. During the high voltage recharge period an audio transducer is activated to produce an audible ''chirp''. The rate of the ''chirps'' is controlled by the rate at which the high voltage bias is recharged, which is proportional to the radiation field intensity to which the sensor is exposed. The chirp rate sensitivity is set to be approximately 1.5 (chirps/min/MR/hr.). The G-M tube sensor is used in a current sensing mode so that the device does not paralyze in a high radiation field. 2 figs.

    20. Compute Nodes

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

      Compute Nodes Compute Nodes There are currently 2632 nodes available on PDSF. The compute (batch) nodes at PDSF are heterogenous, reflecting the periodic procurement of new nodes (and the eventual retirement of old nodes). From the user's perspective they are essentially all equivalent except that some have more memory per job slot. If your jobs have memory requirements beyond the default maximum of 1.1GB you should specify that in your job submission and the batch system will run your job on an

    1. SSRL Computer Account Request Form

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

      SSRL/LCLS Computer Account Request Form August 2009 Fill in this form and sign the security statement mentioned at the bottom of this page to obtain an account. Your Name: __________________________________________________________ Institution: ___________________________________________________________ Mailing Address: ______________________________________________________ Email Address: _______________________________________________________ Telephone:

    2. SSRL Computer Account Request Form

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

      SSRLLCLS Computer Account Request Form August 2009 Fill in this form and sign the security statement mentioned at the bottom of this page to obtain an account. Your Name:...

    3. Compute Nodes

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

      Nodes Quad CoreAMDOpteronprocessor Compute Node Configuration 9,572 nodes 1 quad-core AMD 'Budapest' 2.3 GHz processor per node 4 cores per node (38,288 total cores) 8 GB...

    4. Exascale Computing

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

      Computing Exascale Computing CoDEx Project: A Hardware/Software Codesign Environment for the Exascale Era The next decade will see a rapid evolution of HPC node architectures as power and cooling constraints are limiting increases in microprocessor clock speeds and constraining data movement. Applications and algorithms will need to change and adapt as node architectures evolve. A key element of the strategy as we move forward is the co-design of applications, architectures and programming

    5. LHC Computing

      SciTech Connect (OSTI)

      Lincoln, Don

      2015-07-28

      The LHC is the world’s highest energy particle accelerator and scientists use it to record an unprecedented amount of data. This data is recorded in electronic format and it requires an enormous computational infrastructure to convert the raw data into conclusions about the fundamental rules that govern matter. In this video, Fermilab’s Dr. Don Lincoln gives us a sense of just how much data is involved and the incredible computer resources that makes it all possible.

    6. Computational mechanics

      SciTech Connect (OSTI)

      Goudreau, G.L.

      1993-03-01

      The Computational Mechanics thrust area sponsors research into the underlying solid, structural and fluid mechanics and heat transfer necessary for the development of state-of-the-art general purpose computational software. The scale of computational capability spans office workstations, departmental computer servers, and Cray-class supercomputers. The DYNA, NIKE, and TOPAZ codes have achieved world fame through our broad collaborators program, in addition to their strong support of on-going Lawrence Livermore National Laboratory (LLNL) programs. Several technology transfer initiatives have been based on these established codes, teaming LLNL analysts and researchers with counterparts in industry, extending code capability to specific industrial interests of casting, metalforming, and automobile crash dynamics. The next-generation solid/structural mechanics code, ParaDyn, is targeted toward massively parallel computers, which will extend performance from gigaflop to teraflop power. Our work for FY-92 is described in the following eight articles: (1) Solution Strategies: New Approaches for Strongly Nonlinear Quasistatic Problems Using DYNA3D; (2) Enhanced Enforcement of Mechanical Contact: The Method of Augmented Lagrangians; (3) ParaDyn: New Generation Solid/Structural Mechanics Codes for Massively Parallel Processors; (4) Composite Damage Modeling; (5) HYDRA: A Parallel/Vector Flow Solver for Three-Dimensional, Transient, Incompressible Viscous How; (6) Development and Testing of the TRIM3D Radiation Heat Transfer Code; (7) A Methodology for Calculating the Seismic Response of Critical Structures; and (8) Reinforced Concrete Damage Modeling.

    7. Computing and Computational Sciences Directorate - Contacts

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

      Home › About Us Contacts Jeff Nichols Associate Laboratory Director Computing and Computational Sciences Becky Verastegui Directorate Operations Manager Computing and Computational Sciences Directorate Michael Bartell Chief Information Officer Information Technologies Services Division Jim Hack Director, Climate Science Institute National Center for Computational Sciences Shaun Gleason Division Director Computational Sciences and Engineering Barney Maccabe Division Director Computer Science

    8. Compute Nodes

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

      Compute Nodes Compute Nodes MC-proc.png Compute Node Configuration 6,384 nodes 2 twelve-core AMD 'MagnyCours' 2.1-GHz processors per node (see die image to the right and schematic below) 24 cores per node (153,216 total cores) 32 GB DDR3 1333-MHz memory per node (6,000 nodes) 64 GB DDR3 1333-MHz memory per node (384 nodes) Peak Gflop/s rate: 8.4 Gflops/core 201.6 Gflops/node 1.28 Peta-flops for the entire machine Each core has its own L1 and L2 caches, with 64 KB and 512KB respectively One 6-MB

    9. Computational mechanics

      SciTech Connect (OSTI)

      Raboin, P J

      1998-01-01

      The Computational Mechanics thrust area is a vital and growing facet of the Mechanical Engineering Department at Lawrence Livermore National Laboratory (LLNL). This work supports the development of computational analysis tools in the areas of structural mechanics and heat transfer. Over 75 analysts depend on thrust area-supported software running on a variety of computing platforms to meet the demands of LLNL programs. Interactions with the Department of Defense (DOD) High Performance Computing and Modernization Program and the Defense Special Weapons Agency are of special importance as they support our ParaDyn project in its development of new parallel capabilities for DYNA3D. Working with DOD customers has been invaluable to driving this technology in directions mutually beneficial to the Department of Energy. Other projects associated with the Computational Mechanics thrust area include work with the Partnership for a New Generation Vehicle (PNGV) for ''Springback Predictability'' and with the Federal Aviation Administration (FAA) for the ''Development of Methodologies for Evaluating Containment and Mitigation of Uncontained Engine Debris.'' In this report for FY-97, there are five articles detailing three code development activities and two projects that synthesized new code capabilities with new analytic research in damage/failure and biomechanics. The article this year are: (1) Energy- and Momentum-Conserving Rigid-Body Contact for NIKE3D and DYNA3D; (2) Computational Modeling of Prosthetics: A New Approach to Implant Design; (3) Characterization of Laser-Induced Mechanical Failure Damage of Optical Components; (4) Parallel Algorithm Research for Solid Mechanics Applications Using Finite Element Analysis; and (5) An Accurate One-Step Elasto-Plasticity Algorithm for Shell Elements in DYNA3D.

    10. Computing Resources

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

      Resources This page is the repository for sundry items of information relevant to general computing on BooNE. If you have a question or problem that isn't answered here, or a suggestion for improving this page or the information on it, please mail boone-computing@fnal.gov and we'll do our best to address any issues. Note about this page Some links on this page point to www.everything2.com, and are meant to give an idea about a concept or thing without necessarily wading through a whole website

    11. Component Repair Times Obtained from MSPI Data

      SciTech Connect (OSTI)

      Eide, Steven A.

      2015-05-01

      Information concerning times to repair or restore equipment to service given a failure is valuable to probabilistic risk assessments (PRAs). Examples of such uses in modern PRAs include estimation of the probability of failing to restore a failed component within a specified time period (typically tied to recovering a mitigating system before core damage occurs at nuclear power plants) and the determination of mission times for support system initiating event (SSIE) fault tree models. Information on equipment repair or restoration times applicable to PRA modeling is limited and dated for U.S. commercial nuclear power plants. However, the Mitigating Systems Performance Index (MSPI) program covering all U.S. commercial nuclear power plants provides up-to-date information on restoration times for a limited set of component types. This paper describes the MSPI program data available and analyzes the data to obtain median and mean component restoration times as well as non-restoration cumulative probability curves. The MSPI program provides guidance for monitoring both planned and unplanned outages of trains of selected mitigating systems deemed important to safety. For systems included within the MSPI program, plants monitor both train UA and component unreliability (UR) against baseline values. If the combined system UA and UR increases sufficiently above established baseline results (converted to an estimated change in core damage frequency or CDF), a white (or worse) indicator is generated for that system. That in turn results in increased oversight by the US Nuclear Regulatory Commission (NRC) and can impact a plants insurance rating. Therefore, there is pressure to return MSPI program components to service as soon as possible after a failure occurs. Three sets of unplanned outages might be used to determine the component repair durations desired in this article: all unplanned outages for the train type that includes the component of interest, only unplanned outages associated with failures of the component of interest, and only unplanned outages associated with PRA failures of the component of interest. The paper will describe how component repair times can be generated from each set and which approach is most applicable. Repair time information will be summarized for MSPI pumps and diesel generators using data over 2003 2007. Also, trend information over 2003 2012 will be presented to indicate whether the 2003 2007 repair time information is still considered applicable. For certain types of pumps, mean repair times are significantly higher than the typically assumed 24 h duration.

    12. Table 2. Change in the Number of Personal Computers and Computer...

      U.S. Energy Information Administration (EIA) Indexed Site

      32 463 732 58 Principal Building Activity Assembly 845 1,763 109 167 258 54 102 262 157 Education 6,004 8,046 34 877 847 -3 710 1,039 46 Food Sales 85 206 142 101 316 213 113 321...

    13. Advanced Scientific Computing Research

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

      Advanced Scientific Computing Research Advanced Scientific Computing Research Discovering, developing, and deploying computational and networking capabilities to analyze, model,...

    14. Sandia Energy - Computational Science

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

      Computational Science Home Energy Research Advanced Scientific Computing Research (ASCR) Computational Science Computational Sciencecwdd2015-03-26T13:35:2...

    15. Collecting Personally Identifiable Information Through the Web...

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

      Federal Requirements Collecting Personally Identifiable Information Through the Web and User Research Collecting Personally Identifiable Information Through the Web and User ...

    16. Computer System,

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

      System, Cluster, and Networking Summer Institute New Mexico Consortium and Los Alamos National Laboratory HOW TO APPLY Applications will be accepted JANUARY 5 - FEBRUARY 13, 2016 Computing and Information Technology undegraduate students are encouraged to apply. Must be a U.S. citizen. * Submit a current resume; * Offcial University Transcript (with spring courses posted and/or a copy of spring 2016 schedule) 3.0 GPA minimum; * One Letter of Recommendation from a Faculty Member; and * Letter of

    17. Computing Events

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

      Events Computing Events Spotlighting the most advanced scientific and technical applications in the world! Featuring exhibits of the latest and greatest technologies from industry, academia and government research organizations; many of these technologies will be seen for the first time in Denver. Supercomputing Conference 13 Denver, Colorado November 17-22, 2013 Spotlighting the most advanced scientific and technical applications in the world, SC13 will bring together the international

    18. Computing and Computational Sciences Directorate - Computer Science and

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

      Mathematics Division Computer Science and Mathematics Division The Computer Science and Mathematics Division (CSMD) is ORNL's premier source of basic and applied research in high-performance computing, applied mathematics, and intelligent systems. Our mission includes basic research in computational sciences and application of advanced computing systems, computational, mathematical and analysis techniques to the solution of scientific problems of national importance. We seek to work

    19. Personal Property Briefings | Department of Energy

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

      Briefings Personal Property Briefings PDF icon NES - Rev D-final.pdf More Documents & Publications Personal Property Management Program Brochure Policy Flash 2014-40 Implementation of DOE O 580.1A, DOE Energy Personal Property Management Implementation of Department of Energy Order 580.1, Department of Energy Personal Property Management

    20. Computing at JLab

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

      Jefferson Lab Jefferson Lab Home Search Contact JLab Computing at JLab ---------------------- Accelerator Controls CAD CDEV CODA Computer Center High Performance Computing Scientific Computing JLab Computer Silo maintained by webmaster@jlab.org

    1. Government Personal Property Asset Management

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

      2001-09-23

      To establish procedures for managing Government personal owned or leased by the Department of Energy (DOE) and in the custody of DOE Headquarters employees, including those in the National Nuclear Security Administration (NNSA), in accordance with Federal and Departmental regulations. Cancels HQ O 580.1.

    2. Headquarters Personal Property Asset Management

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

      2005-09-26

      To establish procedures for managing Government personal property owned or leased by the Department of Energy and in the custody of DOE Headquarters employees, including those in the National Nuclear Security Administration. Cancels DOE HQ O 580.1B. Canceled by DOE N 251.69.

    3. Traffic information computing platform for big data

      SciTech Connect (OSTI)

      Duan, Zongtao Li, Ying Zheng, Xibin Liu, Yan Dai, Jiting Kang, Jun

      2014-10-06

      Big data environment create data conditions for improving the quality of traffic information service. The target of this article is to construct a traffic information computing platform for big data environment. Through in-depth analysis the connotation and technology characteristics of big data and traffic information service, a distributed traffic atomic information computing platform architecture is proposed. Under the big data environment, this type of traffic atomic information computing architecture helps to guarantee the traffic safety and efficient operation, more intelligent and personalized traffic information service can be used for the traffic information users.

    4. Computing Resources | Argonne Leadership Computing Facility

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

      Computing Resources Mira Cetus and Vesta Visualization Cluster Data and Networking Software JLSE Computing Resources Theory and Computing Sciences Building Argonne's Theory and Computing Sciences (TCS) building houses a wide variety of computing systems including some of the most powerful supercomputers in the world. The facility has 25,000 square feet of raised computer floor space and a pair of redundant 20 megavolt amperes electrical feeds from a 90 megawatt substation. The building also

    5. High Performance Computing

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

      HPC INL Logo Home High-Performance Computing INL's high-performance computing center provides general use scientific computing capabilities to support the lab's efforts in advanced...

    6. Computer Architecture Lab

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

      User Defined Images Archive APEX Home R & D Exascale Computing CAL Computer Architecture Lab The goal of the Computer Architecture Laboratory (CAL) is engage in...

    7. Idling Reduction for Personal Vehicles

      SciTech Connect (OSTI)

      2015-05-07

      Fact sheet on reducing engine idling in personal vehicles. Idling your vehicle--running your engine when you're not driving it--truly gets you nowhere. Idling reduces your vehicle's fuel economy, costs you money, and creates pollution. Idling for more than 10 seconds uses more fuel and produces more emissions that contribute to smog and climate change than stopping and restarting your engine does.

    8. Idling Reduction for Personal Vehicles

      Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

      - Idling Reduction for Personal Vehicles Idling your vehicle-running your engine when you're not driving it-truly gets you nowhere. Idling reduces your vehicle's fuel economy, costs you money, and creates pollution. Idling for more than 10 seconds uses more fuel and produces more emissions that contribute to smog and climate change than stopping and restarting your engine does. Researchers estimate that idling from heavy-duty and light- duty vehicles combined wastes about 6 billion gallons of

    9. PCA-multiport, a universal computer-based multichannel analyzer

      SciTech Connect (OSTI)

      Seymour, R.; Bedwell, M.; Stockton, S.; Beal, T.; Ahsan, Z.

      1991-11-01

      Nearly a decade has passed since Tennelec/Nucleus introduced the first personal-computer-based multichannel analyzer (MCA). These new MCA architectures, including plug-in cards, nuclear instrumentation module (NIM), and non-NIM versions, have revolutionized spectroscopy measurements and virtually replaced conventional one-box MCAs. The Tennelec personal computer analyzer (PCA)-Multiport is a third-generation system capable of interfacing with virtually any computer. It is designed to be used for most energy and timing measurements commonly encountered in nuclear spectroscopy.

    10. Noise correction of turbulent spectra obtained from Acoustic Doppler Velocimeters

      SciTech Connect (OSTI)

      Durgesh, Vibhav; Thomson, Jim; Richmond, Marshall C.; Polagye, Brian

      2014-03-02

      Accurately estimated auto-spectral density functions are essential for characterization of turbulent flows, and they also have applications in computational fluid dynamics modeling, site and inflow characterization for hydrokinetic turbines, and inflow turbulence generation. The Acoustic Doppler Velocimeter (ADV) provides single-point temporally resolved data, that are used to characterize turbulent flows in rivers, seas, and oceans. However, ADV data are susceptible to contamination from various sources, including instrument noise, which is the intrinsic limit to the accuracy of acoustic velocity measurements. Due to the presence of instrument noise, the spectra obtained are altered at high frequencies. The focus of this study is to develop a robust and effective method for accurately estimating auto-spectral density functions from ADV data by reducing or removing the spectral contribution derived from instrument noise. For this purpose, the Noise Auto-Correlation (NAC) approach was developed, which exploits the correlation properties of instrument noise to identify and remove its contribution from spectra. The spectra estimated using the NAC approach exhibit increased fidelity and a slope of -5/3 in the inertial range, which is typically observed for turbulent flows. Finally, this study also compares the effectiveness of low-pass Gaussian filters in removing instrument noise with that of the NAC approach. For the data used in this study, both the NAC and Gaussian filter approaches are observed to be capable of removing instrument noise at higher frequencies from the spectra. However, the NAC results are closer to the expected frequency power of -5/3 in the inertial sub-range.

    11. Department of Energy Personal Property Management Program

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

      2005-12-07

      This Order provides responsibilities and requirements for personal property management at the Department. Change 1, dated 5-8-08, includes responsibilities for heads of Departmental elements to be accountable for personal property inventories. Cancels DOE O 580.1.

    12. Department of Energy Personal Property Management Program

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

      2005-12-07

      This Order provides responsibilities and requirements for personal property management at the Department. Change 1, dated 5-8-08, includes responsibilities for heads of Departmental elements to be accountable for personal property inventories.

    13. Former NERSC Consultant Mentors Math, Computer Science Students

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

      Former NERSC Consultant Mentors Math, Computer Science Students Former NERSC Consultant Mentors Math, Computer Science Students March 10, 2015 Frank Hale, a former consultant in NERSC's User Services Group (USG) who currently tutors math at Diablo Valley College (DVC) in Pleasant Hill, CA, recently brought a group of computer science enthusiasts from the college to NERSC for a tour. Hale, the first person hired into the USG when NERSC relocated from Lawrence Livermore National Laboratory to

    14. QUEST Hanford Site Computer Users - What do they do?

      SciTech Connect (OSTI)

      WITHERSPOON, T.T.

      2000-03-02

      The Fluor Hanford Chief Information Office requested that a computer-user survey be conducted to determine the user's dependence on the computer and its importance to their ability to accomplish their work. Daily use trends and future needs of Hanford Site personal computer (PC) users was also to be defined. A primary objective was to use the data to determine how budgets should be focused toward providing those services that are truly needed by the users.

    15. Department of Energy Personal Property Management Program

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

      2012-03-30

      The order sets forth requirements for personal property management and accountability. Admin Chg 1, dated 10-22-12.

    16. Personal Property Disposition - Community Reuse Organizations (CROs) |

      Energy Savers [EERE]

      Department of Energy Personal Property Disposition - Community Reuse Organizations (CROs) Personal Property Disposition - Community Reuse Organizations (CROs) MEMORANDUM TO: DISTRIBUTION FROM: Michael Owen (signed) Director, Office of Worker and Community Transition Department of Energy Washington, DC 20505 January 22, 2003 Disposition of Excess Personal Property BACKGROUND AND PURPOSE CROs have been operating asset conversion and personal property transfer programs since shortly after the

    17. Computers for artificial intelligence a technology assessment and forecast

      SciTech Connect (OSTI)

      Miller, R.K.

      1986-01-01

      This study reviews the development and current state-of-the-art in computers for artificial intelligence, including LISP machines, AI workstations, professional and engineering workstations, minicomputers, mainframes, and supercomputers. Major computer systems for AI applications are reviewed. The use of personal computers for expert system development is discussed, and AI software for the IBM PC, Texas Instrument Professional Computer, and Apple MacIntosh is presented. Current research aimed at developing a new computer for artificial intelligence is described, and future technological developments are discussed.

    18. Personalized energy | Argonne National Laboratory

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

      This article was published in the spring 2016 issue of Argonne Now, the laboratory science magazine. Click for the rest of the issue. Personalized energy By Justin H.S. Breaux * March 7, 2016 Tweet EmailPrint The local food movement is booming. Can we do the same for electricity? This article was originally published in the spring 2016 issue of Argonne Now, the laboratory's science magazine. Being cut off from electricity doesn't just affect whether we can make a phone call or heat dinner; it

    19. Mike Sorey (personal communication 2014) | Open Energy Information

      Open Energy Info (EERE)

      Mike Sorey (personal communication 2014) Jump to: navigation, search OpenEI Reference LibraryAdd to library Personal Communication: Mike Sorey (personal communication 2014)...

    20. Fermilab | Science at Fermilab | Computing | Grid Computing

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

      In the early 2000s, members of Fermilab's Computing Division looked ahead to experiments like those at the Large Hadron Collider, which would collect more data than any computing ...

    1. Marta Garcia Martinez | Argonne Leadership Computing Facility

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

      Marta Garcia Martinez Assistant Computational Scientist Marta Garcia Martinez Argonne National Laboratory 9700 South Cass Avenue Building 240 - Rm. 1132 Argonne IL, 60439 630-252-0091 mgarcia@alcf.anl.gov http://web.alcf.anl.gov/~mgarcia/ Marta García is an Assistant Computational Scientist at the ALCF. She is part of the Catalyst Team, where she focuses on assisting Computational Fluid Dynamics projects to maximize and accelerate their research on ALCF resources. She obtained a degree in

    2. Mira Computational Readiness Assessment | Argonne Leadership Computing

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

      Facility INCITE Program 5 Checks & 5 Tips for INCITE Mira Computational Readiness Assessment ALCC Program Director's Discretionary (DD) Program Early Science Program INCITE 2016 Projects ALCC 2015 Projects ESP Projects View All Projects Publications ALCF Tech Reports Industry Collaborations Mira Computational Readiness Assessment Assess your project's computational readiness for Mira A review of the following computational readiness points in relation to scaling, porting, I/O, memory

    3. Sandia Energy - Computations

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

      Computations Home Transportation Energy Predictive Simulation of Engines Reacting Flow Applied Math & Software Computations ComputationsAshley Otero2015-10-30T02:18:51+00:00...

    4. Computer hardware fault administration

      DOE Patents [OSTI]

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

      2010-09-14

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

    5. Molecular Science Computing | EMSL

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

      computational and state-of-the-art experimental tools, providing a cross-disciplinary environment to further research. Additional Information Computing user policies Partners...

    6. Applied & Computational Math

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

      & Computational Math - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Twitter Google + Vimeo GovDelivery SlideShare Applied & Computational Math HomeEnergy ...

    7. advanced simulation and computing

      National Nuclear Security Administration (NNSA)

      Each successive generation of computing system has provided greater computing power and energy efficiency.

      CTS-1 clusters will support NNSA's Life Extension Program and...

    8. NERSC Computer Security

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

      Security NERSC Computer Security NERSC computer security efforts are aimed at protecting NERSC systems and its users' intellectual property from unauthorized access or...

    9. Making Energy Personal | Department of Energy

      Office of Environmental Management (EM)

      Making Energy Personal Making Energy Personal Below is information about the student activity/lesson plan from your search. Grades 5-8 Subject Energy Choices and Society, Energy Efficiency and Conservation Summary Students will work with an interactive website in oder to determine their own CO2 output per year. Afterwards, they will conduct a home energy audit to develop personal energy saving strategies. Curriculum Language Arts, Mathematics, Science Plan Time 90 minutes, plus optional 2-class

    10. Personal Energy formerly Altrenergie | Open Energy Information

      Open Energy Info (EERE)

      Energy formerly Altrenergie Jump to: navigation, search Name: Personal Energy (formerly Altrenergie) Place: Cagliari, Italy Zip: 9126 Product: A project developer based in...

    11. Department of Energy Personal Property Management Program

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

      2012-03-30

      The order sets forth requirements for personal property management and accountability. Admin Chg 1, dated 10-22-12, supersedes DOE O 580.1A.

    12. Policy Flash 2013-24 Fee Determinations: Requirement to Obtain...

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

      Requirement to Obtain Acquisition Executive's Input. Questions concerning this policy flash should be directed to Michael Righi of the Contract and Financial Assistance...

    13. A personal message from Bill Archer

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

      the Manhattan Project, Los Alamos has been at the forefront of developing and using computers for scientific research. In the 1960s the need for increased computational...

    14. Imaging systems and methods for obtaining and using biometric information

      DOE Patents [OSTI]

      McMakin, Douglas L [Richland, WA; Kennedy, Mike O [Richland, WA

      2010-11-30

      Disclosed herein are exemplary embodiments of imaging systems and methods of using such systems. In one exemplary embodiment, one or more direct images of the body of a clothed subject are received, and a motion signature is determined from the one or more images. In this embodiment, the one or more images show movement of the body of the subject over time, and the motion signature is associated with the movement of the subject's body. In certain implementations, the subject can be identified based at least in part on the motion signature. Imaging systems for performing any of the disclosed methods are also disclosed herein. Furthermore, the disclosed imaging, rendering, and analysis methods can be implemented, at least in part, as one or more computer-readable media comprising computer-executable instructions for causing a computer to perform the respective methods.

    15. Radiological Safety Analysis Computer Program

      Energy Science and Technology Software Center (OSTI)

      2001-08-28

      RSAC-6 is the latest version of the RSAC program. It calculates the consequences of a release of radionuclides to the atmosphere. Using a personal computer, a user can generate a fission product inventory; decay and in-grow the inventory during transport through processes, facilities, and the environment; model the downwind dispersion of the activity; and calculate doses to downwind individuals. Internal dose from the inhalation and ingestion pathways is calculated. External dose from ground surface andmore » plume gamma pathways is calculated. New and exciting updates to the program include the ability to evaluate a release to an enclosed room, resuspension of deposited activity and evaluation of a release up to 1 meter from the release point. Enhanced tools are included for dry deposition, building wake, occupancy factors, respirable fraction, AMAD adjustment, updated and enhanced radionuclide inventory and inclusion of the dose-conversion factors from FOR 11 and 12.« less

    16. Cosmic Reionization On Computers | Argonne Leadership Computing...

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

      its Cosmic Reionization On Computers (CROC) project, using the Adaptive Refinement Tree (ART) code as its main simulation tool. An important objective of this research is to make...

    17. Computing and Computational Sciences Directorate - Information...

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

      cost-effective, state-of-the-art computing capabilities for research and development. ... communicates and manages strategy, policy and finance across the portfolio of IT assets. ...

    18. Parallel computing works

      SciTech Connect (OSTI)

      Not Available

      1991-10-23

      An account of the Caltech Concurrent Computation Program (C{sup 3}P), a five year project that focused on answering the question: Can parallel computers be used to do large-scale scientific computations '' As the title indicates, the question is answered in the affirmative, by implementing numerous scientific applications on real parallel computers and doing computations that produced new scientific results. In the process of doing so, C{sup 3}P helped design and build several new computers, designed and implemented basic system software, developed algorithms for frequently used mathematical computations on massively parallel machines, devised performance models and measured the performance of many computers, and created a high performance computing facility based exclusively on parallel computers. While the initial focus of C{sup 3}P was the hypercube architecture developed by C. Seitz, many of the methods developed and lessons learned have been applied successfully on other massively parallel architectures.

    19. Computers-BSA.ppt

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

      Computers! Boy Scout Troop 405! What is a computer?! Is this a computer?! Charles Babbage: Father of the Computer! 1830s Designed mechanical calculators to reduce human error. *Input device *Memory to store instructions and results *A processors *Output device! Vacuum Tube! Edison 1883 & Lee de Forest 1906 discovered that "vacuum tubes" could serve as electrical switches and amplifiers A switch can be ON (1)" or OFF (0) Electronic computers use Boolean (George Bool 1850) logic

    20. Computational Fluid Dynamics

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

      scour-tracc-cfd TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Computational Fluid Dynamics Overview of CFD: Video Clip with Audio Computational fluid dynamics (CFD) research uses mathematical and computational models of flowing fluids to describe and predict fluid response in problems of interest, such as the flow of air around a moving vehicle or the flow of water and sediment in a river. Coupled with appropriate and prototypical

    1. Theory & Computation > Research > The Energy Materials Center...

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

      Theory & Computation In This Section Computation & Simulation Theory & Computation Computation & Simulation...

    2. Generator for gallium-68 and compositions obtained therefrom

      DOE Patents [OSTI]

      Neirinckx, Rudi D. (Medfield, MA); Davis, Michael A. (Westwood, MA)

      1981-01-01

      A generator for obtaining radioactive gallium-68 from germanium-68 bound in a resin containing unsubstituted phenolic hydroxyl groups. The germanium-68 is loaded into the resin from an aqueous solution of the germanium-68. A physiologically acceptable solution of gallium-68 having an activity of 0.1 to 50 millicuries per milliliter of gallium-68 solution is obtained. The solution is obtained from the bound germanium-68 which forms gallium-68 in situ by eluting the column with a hydrochloric acid solution to form an acidic solution of gallium-68. The acidic solution of gallium-68 can be neutralized.

    3. Terra-Gen Powers Coso Geothermal Facility Obtains Critical Federal...

      Open Energy Info (EERE)

      Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Terra-Gen Powers Coso Geothermal Facility Obtains Critical Federal Permit to Increase Its...

    4. An important challenge in magnetic fusion research is to obtain...

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

      control of edge transport barriers on Alcator C-Mod A crucial challenge in magnetic fusion is to obtain high energy confinement in a stationary plasma that is compatible with...

    5. Treatment of biomass to obtain a target chemical

      DOE Patents [OSTI]

      Dunson, Jr., James B. (Newark, DE); Tucker, III, Melvin P. (Lakewood, CO); Elander, Richard T. (Evergreen, CO); Hennessey, Susan Marie (Avondale, PA)

      2010-08-24

      Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

    6. Common Approach to Obtaining Experimental Data for Developing Predictive

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

      NOx Absorber Models | Department of Energy Common Approach to Obtaining Experimental Data for Developing Predictive NOx Absorber Models Common Approach to Obtaining Experimental Data for Developing Predictive NOx Absorber Models 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_currier.pdf More Documents & Publications Pt-free, Perovskite-based Lean NOx Trap Catalysts Lean NOx Traps - Microstructural Studies of Real World and Model

    7. Polymorphous computing fabric

      DOE Patents [OSTI]

      Wolinski, Christophe Czeslaw (Los Alamos, NM); Gokhale, Maya B. (Los Alamos, NM); McCabe, Kevin Peter (Los Alamos, NM)

      2011-01-18

      Fabric-based computing systems and methods are disclosed. A fabric-based computing system can include a polymorphous computing fabric that can be customized on a per application basis and a host processor in communication with said polymorphous computing fabric. The polymorphous computing fabric includes a cellular architecture that can be highly parameterized to enable a customized synthesis of fabric instances for a variety of enhanced application performances thereof. A global memory concept can also be included that provides the host processor random access to all variables and instructions associated with the polymorphous computing fabric.

    8. Fermilab | Science at Fermilab | Computing | High-performance Computing

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

      Lattice QCD Farm at the Grid Computing Center at Fermilab. Lattice QCD Farm at the Grid Computing Center at Fermilab. Computing High-performance Computing A workstation computer can perform billions of multiplication and addition operations each second. High-performance parallel computing becomes necessary when computations become too large or too long to complete on a single such machine. In parallel computing, computations are divided up so that many computers can work on the same problem at

    9. Computers for Learning

      Broader source: Energy.gov [DOE]

      Through Executive Order 12999, the Computers for Learning Program was established to provide Federal agencies a quick and easy system for donating excess and surplus computer equipment to schools...

    10. Cognitive Computing for Security.

      SciTech Connect (OSTI)

      Debenedictis, Erik; Rothganger, Fredrick; Aimone, James Bradley; Marinella, Matthew; Evans, Brian Robert; Warrender, Christina E.; Mickel, Patrick

      2015-12-01

      Final report for Cognitive Computing for Security LDRD 165613. It reports on the development of hybrid of general purpose/ne uromorphic computer architecture, with an emphasis on potential implementation with memristors.

    11. Getting Computer Accounts

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

      Computer Accounts When you first arrive at the lab, you will be presented with lots of forms that must be read and signed in order to get an ID and computer access. You must ensure...

    12. Advanced Scientific Computing Research

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

      Advanced Scientific Computing Research Advanced Scientific Computing Research Discovering, developing, and deploying computational and networking capabilities to analyze, model, simulate, and predict complex phenomena important to the Department of Energy. Get Expertise Pieter Swart (505) 665 9437 Email Pat McCormick (505) 665-0201 Email Dave Higdon (505) 667-2091 Email Fulfilling the potential of emerging computing systems and architectures beyond today's tools and techniques to deliver

    13. Computational Structural Mechanics

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

      load-2 TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Computational Structural Mechanics Overview of CSM Computational structural mechanics is a well-established methodology for the design and analysis of many components and structures found in the transportation field. Modern finite-element models (FEMs) play a major role in these evaluations, and sophisticated software, such as the commercially available LS-DYNA® code, is

    14. Results of the 2013 UT modeling benchmark obtained with models implemented in CIVA

      SciTech Connect (OSTI)

      Toullelan, Gwnal; Raillon, Raphale; Chatillon, Sylvain; Lonne, Sbastien

      2014-02-18

      The 2013 Ultrasonic Testing (UT) modeling benchmark concerns direct echoes from side drilled holes (SDH), flat bottom holes (FBH) and corner echoes from backwall breaking artificial notches inspected with a matrix phased array probe. This communication presents the results obtained with the models implemented in the CIVA software: the pencilmodel is used to compute the field radiated by the probe, the Kirchhoff approximation is applied to predict the response of FBH and notches and the SOV (Separation Of Variables) model is used for the SDH responses. The comparison between simulated and experimental results are presented and discussed.

    15. Computing and Computational Sciences Directorate - Information Technology

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

      Computational Sciences and Engineering The Computational Sciences and Engineering Division (CSED) is ORNL's premier source of basic and applied research in the field of data sciences and knowledge discovery. CSED's science agenda is focused on research and development related to knowledge discovery enabled by the explosive growth in the availability, size, and variability of dynamic and disparate data sources. This science agenda encompasses data sciences as well as advanced modeling and

    16. Department of Energy Personal Property Management Guide

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

      2005-12-07

      This Guide provides nonregulatory guidance and information to assist DOE organizations and contractors in implementing the DOE-wide and site-specific personal property management programs. Does not cancel other directives.

    17. BNL ATLAS Grid Computing

      ScienceCinema (OSTI)

      Michael Ernst

      2010-01-08

      As the sole Tier-1 computing facility for ATLAS in the United States and the largest ATLAS computing center worldwide Brookhaven provides a large portion of the overall computing resources for U.S. collaborators and serves as the central hub for storing,

    18. Computing environment logbook

      DOE Patents [OSTI]

      Osbourn, Gordon C; Bouchard, Ann M

      2012-09-18

      A computing environment logbook logs events occurring within a computing environment. The events are displayed as a history of past events within the logbook of the computing environment. The logbook provides search functionality to search through the history of past events to find one or more selected past events, and further, enables an undo of the one or more selected past events.

    19. Mathematical and Computational Epidemiology

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

      Mathematical and Computational Epidemiology Search Site submit Contacts | Sponsors Mathematical and Computational Epidemiology Los Alamos National Laboratory change this image and alt text Menu About Contact Sponsors Research Agent-based Modeling Mixing Patterns, Social Networks Mathematical Epidemiology Social Internet Research Uncertainty Quantification Publications People Mathematical and Computational Epidemiology (MCEpi) Quantifying model uncertainty in agent-based simulations for

    20. A personal message from David Clark

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

      Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit Lab's centers and institutes help develop a future workforce A personal message from David Clark, National Security Education Center Director, Los Alamos National Laboratory September 1, 2015 David Clark, National Security Education Center Director David Clark, National Security Education Center Director Contacts Community Programs

    1. A personal message from Kathy Keith

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

      Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit Walking together in the right direction A personal message from Kathy Keith, Community Programs Director, Los Alamos National Laboratory December 1, 2015 Kathy Keith, Community Programs Director Kathy Keith, Community Programs Director Contacts Community Programs Director Kathy Keith Email Editor Ute Haker Email Kathy Keith As 2015

    2. A personal message from Kathy Keith

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

      Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit Expanding Partnerships for Stronger Communities A personal message from Kathy Keith, Community Programs Director, Los Alamos National Laboratory February 1, 2016 Kathy Keith, Community Programs Director Kathy Keith, Community Programs Director Contacts Community Programs Director Kathy Keith Email Editor Melinda Gutierrez Email

    3. A personal message from Kathy Keith

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

      Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit LANS commits $2.5 million for the 2016 regional Community Commitment Plan A personal message from Kathy Keith, Community Programs Director, Los Alamos National Laboratory March 1, 2016 Kathy Keith, Community Programs Director Kathy Keith, Community Programs Director Contacts Director, Community Relations & Partnerships Kathy

    4. Making STEM Personal | Department of Energy

      Energy Savers [EERE]

      Making STEM Personal Making STEM Personal March 29, 2013 - 3:51pm Addthis Occupations in science, technology, engineering, and mathematics (STEM) are among the fastest growing fields, offering well-paying opportunities to better explore, understand, and improve the world. To celebrate Women's History Month, DOE recently introduced an online Women @ Energy series that profiles DOE women involved in STEM., Included in the Women @ Energy series are OE's Assistant Secretary Patricia Hoffman and

    5. Personal Property Management Program Brochure | Department of Energy

      Energy Savers [EERE]

      Management Program Brochure Personal Property Management Program Brochure PDF icon Personal Property Management Program Brochure More Documents & Publications Personal Property Briefings COMMENTS&#0; Executive Order 13514: Comprehensive Federal Fleet Management Handbook

    6. Personal Property Management Certification Brochure | Department of Energy

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

      Management Certification Brochure Personal Property Management Certification Brochure PDF icon Personal Property Management Certification Brochure More Documents & Publications Personal Property Briefings Initial Application for FAC-C, Purchasing, Financial Assistance and Property Management Certification OPAM Policy Acquisition Guides

    7. LopezPersonalProfile.pdf | Department of Energy

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

      LopezPersonalProfile.pdf LopezPersonalProfile.pdf PDF icon LopezPersonalProfile.pdf More Documents & Publications Wattman_bio.pdf FAQS Reference Guide - Aviation Manager FAQS Reference Guide - Aviation Safety Officer

    8. 2009 Energy Consumption Per Person | Department of Energy

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

      2009 Energy Consumption Per Person 2009 Energy Consumption Per Person 2009 Energy Consumption Per Person Per capita energy consumption across all sectors of the economy. Click on a state for more information.

    9. Scalable optical quantum computer

      SciTech Connect (OSTI)

      Manykin, E A; Mel'nichenko, E V [Institute for Superconductivity and Solid-State Physics, Russian Research Centre 'Kurchatov Institute', Moscow (Russian Federation)

      2014-12-31

      A way of designing a scalable optical quantum computer based on the photon echo effect is proposed. Individual rare earth ions Pr{sup 3+}, regularly located in the lattice of the orthosilicate (Y{sub 2}SiO{sub 5}) crystal, are suggested to be used as optical qubits. Operations with qubits are performed using coherent and incoherent laser pulses. The operation protocol includes both the method of measurement-based quantum computations and the technique of optical computations. Modern hybrid photon echo protocols, which provide a sufficient quantum efficiency when reading recorded states, are considered as most promising for quantum computations and communications. (quantum computer)

    10. COMPUTATIONAL SCIENCE CENTER

      SciTech Connect (OSTI)

      DAVENPORT, J.

      2005-11-01

      The Brookhaven Computational Science Center brings together researchers in biology, chemistry, physics, and medicine with applied mathematicians and computer scientists to exploit the remarkable opportunities for scientific discovery which have been enabled by modern computers. These opportunities are especially great in computational biology and nanoscience, but extend throughout science and technology and include, for example, nuclear and high energy physics, astrophysics, materials and chemical science, sustainable energy, environment, and homeland security. To achieve our goals we have established a close alliance with applied mathematicians and computer scientists at Stony Brook and Columbia Universities.

    11. Hydrodesulfurization and hydrodenitrogenation catalysts obtained from coal mineral matter

      DOE Patents [OSTI]

      Liu, Kindtoken H. D. (Newark, DE); Hamrin, Jr., Charles E. (Lexington, KY)

      1982-01-01

      A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25-3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.

    12. Material to Efficiently and Economically Obtain Microorganism and

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

      Microalgae - Energy Innovation Portal Biomass and Biofuels Biomass and Biofuels Advanced Materials Advanced Materials Find More Like This Return to Search Material to Efficiently and Economically Obtain Microorganism and Microalgae Ames Laboratory Contact AMES About This Technology Technology Marketing SummaryTechnology provides an economical and efficient process to harvest microorganisms like microalgae from its growth media.Description The interest in using algae as feedstock for biofuel

    13. How Do I Determine what Personal Protective Equipment (PPE) to...

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

      Determine what Personal Protective Equipment (PPE) to Wear? Print General The ALS has a standard Personal Protective Equipment (PPE) policy that covers all activities on the...

    14. POLICY GUIDANCE MEMORANDUM #32A Schedule A Appointments of Persons...

      Office of Environmental Management (EM)

      2A Schedule A Appointments of Persons with Disabilities and Appointments for Disabled Veterans POLICY GUIDANCE MEMORANDUM 32A Schedule A Appointments of Persons with Disabilities...

    15. A.T. Ochsner (Personal Communication, 2014) | Open Energy Information

      Open Energy Info (EERE)

      to library Personal Communication: A.T. Ochsner (Personal Communication, 2014) Authors J. Held and F. Henderson Recipient A.T. Ochsner Published 01042014 DOI Not Provided...

    16. Renewable Energy Systems Tax Credit (Personal) | Department of...

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

      Personal) Renewable Energy Systems Tax Credit (Personal) < Back Eligibility Commercial Residential Multifamily Residential Savings Category Solar - Passive Solar Water Heat Solar...

    17. Sandia Energy - High Performance Computing

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

      High Performance Computing Home Energy Research Advanced Scientific Computing Research (ASCR) High Performance Computing High Performance Computingcwdd2015-03-18T21:41:24+00:00...

    18. COMPUTATIONAL SCIENCE CENTER

      SciTech Connect (OSTI)

      DAVENPORT, J.

      2006-11-01

      Computational Science is an integral component of Brookhaven's multi science mission, and is a reflection of the increased role of computation across all of science. Brookhaven currently has major efforts in data storage and analysis for the Relativistic Heavy Ion Collider (RHIC) and the ATLAS detector at CERN, and in quantum chromodynamics. The Laboratory is host for the QCDOC machines (quantum chromodynamics on a chip), 10 teraflop/s computers which boast 12,288 processors each. There are two here, one for the Riken/BNL Research Center and the other supported by DOE for the US Lattice Gauge Community and other scientific users. A 100 teraflop/s supercomputer will be installed at Brookhaven in the coming year, managed jointly by Brookhaven and Stony Brook, and funded by a grant from New York State. This machine will be used for computational science across Brookhaven's entire research program, and also by researchers at Stony Brook and across New York State. With Stony Brook, Brookhaven has formed the New York Center for Computational Science (NYCCS) as a focal point for interdisciplinary computational science, which is closely linked to Brookhaven's Computational Science Center (CSC). The CSC has established a strong program in computational science, with an emphasis on nanoscale electronic structure and molecular dynamics, accelerator design, computational fluid dynamics, medical imaging, parallel computing and numerical algorithms. We have been an active participant in DOES SciDAC program (Scientific Discovery through Advanced Computing). We are also planning a major expansion in computational biology in keeping with Laboratory initiatives. Additional laboratory initiatives with a dependence on a high level of computation include the development of hydrodynamics models for the interpretation of RHIC data, computational models for the atmospheric transport of aerosols, and models for combustion and for energy utilization. The CSC was formed to bring together researchers in these areas and to provide a focal point for the development of computational expertise at the Laboratory. These efforts will connect to and support the Department of Energy's long range plans to provide Leadership class computing to researchers throughout the Nation. Recruitment for six new positions at Stony Brook to strengthen its computational science programs is underway. We expect some of these to be held jointly with BNL.

    19. Critical current of the dispersion superconducting phase, obtained during aging

      SciTech Connect (OSTI)

      Romanov, Y.P.; Smirnov, L.V.; Sadovskiy, V.D.; Volkenshteyn, N.V.

      1983-12-01

      High critical parameters of plastic superconductors on a base of solid solutions are obtained as a result of plastic deformation and heat treatment. At the same time, the critical current and field of monocrystalline samples turn out to be significantly lower. The preservation of superconducting in high magnetic fields is conditioned by the presence of a dense network of very thin intersecting filaments, which remain superconducting during the conversion of the main mass of the material into the normal state with the help of an electron microscope. A lamellar threddike structure was determined which was conditioned by plastic deformation and the breakdown of a solid solution.

    20. How to obtain the National Energy Modeling System (NEMS)

      Reports and Publications (EIA)

      2013-01-01

      The National Energy Modeling System (NEMS) NEMS is used by the modelers at the U. S. Energy Information Administration (EIA) who understand its structure and programming. NEMS has only been used by a few organizations outside of the EIA, because most people that requested NEMS found out that it was too difficult or rigid to use. NEMS is not typically used for state-level analysis and is poorly suited for application to other countries. However, many do obtain the model simply to use the data in its input files or to examine the source code.

    1. Center for Nanophase Materials Sciences (CNMS) - Obtaining Entry to CNMS

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

      Facilities Obtaining Entry to CNMS Facilities Photo Identification - Effective March 30, 2015, ORNL has become fully compliant with the REAL ID Act of 2005. This Act requires that anyone accessing a Federal Facility, which ORNL is, must present a compliant form of identification. State-issued driver's licenses that are not REAL ID compliant will no longer be accepted as proof of identity at ORNL. If you are from one of the noncompliant states, you will need to provide another form of

    2. BGP: CPMD | Argonne Leadership Computing Facility

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

      Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] BGP: CPMD What is CPMD? The CPMD code is a parallelized plane wave/pseudopotential implementation of Density Functional Theory, particularly designed for ab-initio molecular dynamics. Obtaining CPMD A license must be obtained from http://www.cpmd.org/cpmd_licence.html Building CPMD for Blue Gene/P A shell script is included which can create a base

    3. Edison Electrifies Scientific Computing

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

      Edison Electrifies Scientific Computing Edison Electrifies Scientific Computing NERSC Flips Switch on New Flagship Supercomputer January 31, 2014 Contact: Margie Wylie, mwylie@lbl.gov, +1 510 486 7421 The National Energy Research Scientific Computing (NERSC) Center recently accepted "Edison," a new flagship supercomputer designed for scientific productivity. Named in honor of American inventor Thomas Alva Edison, the Cray XC30 will be dedicated in a ceremony held at the Department of

    4. Energy Aware Computing

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

      Partnerships Shifter: User Defined Images Archive APEX Home » R & D » Energy Aware Computing Energy Aware Computing Dynamic Frequency Scaling One means to lower the energy required to compute is to reduce the power usage on a node. One way to accomplish this is by lowering the frequency at which the CPU operates. However, reducing the clock speed increases the time to solution, creating a potential tradeoff. NERSC continues to examine how such methods impact its operations and its

    5. Portal dosimetry for VMAT using integrated images obtained during treatment

      SciTech Connect (OSTI)

      Bedford, James L. Hanson, Ian M.; Hansen, Vibeke Nordmark

      2014-02-15

      Purpose: Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Methods: Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm{sup 3} ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. Results: The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% 1.0%. The method was highly sensitive to errors in monitor units and field shape, but less sensitive to errors in gantry angle or phantom position. Conclusions: This method of predicting integrated portal images provides a convenient means of verifying dose delivered using VMAT, with minimal image acquisition and data processing requirements.

    6. Applied Computer Science

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

      Results from a climate simulation computed using the Model for Prediction Across Scales (MPAS) code. This visualization shows the temperature of ocean currents using a green and ...

    7. Announcement of Computer Software

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

      All Other Editions Are Obsolete UNITED STATES DEPARTMENT OF ENERGY ANNOUNCEMENT OF COMPUTER SOFTWARE OMB Control Number 1910-1400 (OMB Burden Disclosure Statement is on last...

    8. Hybrid nuclear reactor grey rod to obtain required reactivity worth

      DOE Patents [OSTI]

      Miller, John V. (Munhall, PA); Carlson, William R. (Scott Township, Allegheny County, PA); Yarbrough, Michael B. (Hempfield Township, Westmoreland County, PA)

      1991-01-01

      Hybrid nuclear reactor grey rods are described, wherein geometric combinations of relatively weak neutron absorber materials such as stainless steel, zirconium or INCONEL, and relatively strong neutron absorber materials, such as hafnium, silver-indium cadmium and boron carbide, are used to obtain the reactivity worths required to reach zero boron change load follow. One embodiment includes a grey rod which has combinations of weak and strong neutron absorber pellets in a stainless steel cladding. The respective pellets can be of differing heights. A second embodiment includes a grey rod with a relatively thick stainless steel cladding receiving relatively strong neutron absorber pellets only. A third embodiment includes annular relatively weak netron absorber pellets with a smaller diameter pellet of relatively strong absorber material contained within the aperture of each relatively weak absorber pellet. The fourth embodiment includes pellets made of a homogeneous alloy of hafnium and a relatively weak absorber material, with the percentage of hafnium chosen to obtain the desired reactivity worth.

    9. 60 Years of Computing | Department of Energy

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

      60 Years of Computing 60 Years of Computing

    10. PIA - Human Resources - Personal Information Change Request - Idaho

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

      National Engineering Laboratory | Department of Energy - Personal Information Change Request - Idaho National Engineering Laboratory PIA - Human Resources - Personal Information Change Request - Idaho National Engineering Laboratory PIA - Human Resources - Personal Information Change Request - Idaho National Engineering Laboratory PDF icon PIA - Human Resources - Personal Information Change Request - Idaho National Engineering Laboratory More Documents & Publications PIA - INL PeopleSoft

    11. PIA - Richland Personal Security Clearance Record | Department of Energy

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

      Personal Security Clearance Record PIA - Richland Personal Security Clearance Record PIA - Richland Personal Security Clearance Record PDF icon PIA - Richland Personal Security Clearance Record More Documents & Publications Integrated Safety Management Workshop Registration, PIA, Idaho National Laboratory PIA - Bonneville Power Adminstration Ethics Helpline PIA - Advanced Test Reactor National Scientific User Facility Users Week 2009

    12. Personal Property Management Program Brochure | Department of Energy

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

      Personal Property Management Program Brochure Personal Property Management Program Brochure PDF icon Personal Property Management Program Brochure More Documents & Publications Personal Property Briefings Policy Flash 2013-23 Department of Energy Acquisition Regulation (DEAR) Final Rule for changes to Parts 908, 945, 952, and 970 regarding Government Property COMMENTS&#0;

    13. Information Science, Computing, Applied Math

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

      Capabilities Information Science, Computing, Applied Math science-innovationassetsimagesicon-science.jpg Information Science, Computing, Applied Math National security ...

    14. Computer Processor Allocator

      Energy Science and Technology Software Center (OSTI)

      2004-03-01

      The Compute Processor Allocator (CPA) provides an efficient and reliable mechanism for managing and allotting processors in a massively parallel (MP) computer. It maintains information in a database on the health. configuration and allocation of each processor. This persistent information is factored in to each allocation decision. The CPA runs in a distributed fashion to avoid a single point of failure.

    15. SC e-journals, Computer Science

      Office of Scientific and Technical Information (OSTI)

      & Mathematical Organization Theory Computational Complexity Computational Economics Computational Management ... Technology EURASIP Journal on Information Security ...

    16. Managing turbine-generator outages by computer

      SciTech Connect (OSTI)

      Reinhart, E.R. [Reinhart and Associates, Inc., Austin, TX (United States)

      1997-09-01

      This article describes software being developed to address the need for computerized planning and documentation programs that can help manage outages. Downsized power-utility companies and the growing demand for independent, competitive engineering and maintenance services have created a need for a computer-assisted planning and technical-direction program for turbine-generator outages. To meet this need, a software tool is now under development that can run on a desktop or laptop personal computer to assist utility personnel and technical directors in outage planning. Total Outage Planning Software (TOPS), which runs on Windows, takes advantage of the mass data storage available with compact-disc technology by archiving the complete outage documentation on CD. Previous outage records can then be indexed, searched, and viewed on a computer with the click of a mouse. Critical-path schedules, parts lists, parts order tracking, work instructions and procedures, custom data sheets, and progress reports can be generated by computer on-site during an outage.

    17. Department of Energy Personal Property Management Program

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

      2010-11-11

      DOE Order 580.1, initially issued December 2005 and revised in May 2008, provides Department-level requirements and performance expectations for proper accountability and management of personal property owned by the Department of Energy (DOE), whether in the hands of the Federal government or the contractor.

    18. Computer simulation of coal preparation plants. Part 2. User's manual. Final report

      SciTech Connect (OSTI)

      Gottfried, B.S.; Tierney, J.W.

      1985-12-01

      This report describes a comprehensive computer program that allows the user to simulate the performance of realistic coal preparation plants. The program is very flexible in the sense that it can accommodate any particular plant configuration that may be of interest. This allows the user to compare the performance of different plant configurations and to determine the impact of various modes of operation with the same configuration. In addition, the program can be used to assess the degree of cleaning obtained with different coal feeds for a given plant configuration and a given mode of operation. Use of the simulator requires that the user specify the appearance of the plant configuration, the plant operating conditions, and a description of the coal feed. The simulator will then determine the flowrates within the plant, and a description of each flowrate (i.e., the weight distribution, percent ash, pyritic sulfur and total sulfur, moisture, and Btu content). The simulation program has been written in modular form using the Fortran language. It can be implemented on a great many different types of computers, ranging from large scientific mainframes to IBM-type personal computers with a fixed disk. Some customization may be required, however, to ensure compatibility with the features of Fortran available on a particular computer. Part I of this report contains a general description of the methods used to carry out the simulation. Each of the major types of units is described separately, in addition to a description of the overall system analysis. Part II is intended as a user's manual. It contains a listing of the mainframe version of the program, instructions for its use (on both a mainframe and a microcomputer), and output for a representative sample problem.

    19. OBTAINING POTENTIAL FIELD SOLUTIONS WITH SPHERICAL HARMONICS AND FINITE DIFFERENCES

      SciTech Connect (OSTI)

      Toth, Gabor; Van der Holst, Bart; Huang Zhenguang

      2011-05-10

      Potential magnetic field solutions can be obtained based on the synoptic magnetograms of the Sun. Traditionally, a spherical harmonics decomposition of the magnetogram is used to construct the current- and divergence-free magnetic field solution. This method works reasonably well when the order of spherical harmonics is limited to be small relative to the resolution of the magnetogram, although some artifacts, such as ringing, can arise around sharp features. When the number of spherical harmonics is increased, however, using the raw magnetogram data given on a grid that is uniform in the sine of the latitude coordinate can result in inaccurate and unreliable results, especially in the polar regions close to the Sun. We discuss here two approaches that can mitigate or completely avoid these problems: (1) remeshing the magnetogram onto a grid with uniform resolution in latitude and limiting the highest order of the spherical harmonics to the anti-alias limit; (2) using an iterative finite difference algorithm to solve for the potential field. The naive and the improved numerical solutions are compared for actual magnetograms and the differences are found to be rather dramatic. We made our new Finite Difference Iterative Potential-field Solver (FDIPS) a publicly available code so that other researchers can also use it as an alternative to the spherical harmonics approach.

    20. Computers as tools

      SciTech Connect (OSTI)

      Eriksson, I.V.

      1994-12-31

      The following message was recently posted on a bulletin board and clearly shows the relevance of the conference theme: {open_quotes}The computer and digital networks seem poised to change whole regions of human activity -- how we record knowledge, communicate, learn, work, understand ourselves and the world. What`s the best framework for understanding this digitalization, or virtualization, of seemingly everything? ... Clearly, symbolic tools like the alphabet, book, and mechanical clock have changed some of our most fundamental notions -- self, identity, mind, nature, time, space. Can we say what the computer, a purely symbolic {open_quotes}machine,{close_quotes} is doing to our thinking in these areas? Or is it too early to say, given how much more powerful and less expensive the technology seems destinated to become in the next few decades?{close_quotes} (Verity, 1994) Computers certainly affect our lives and way of thinking but what have computers to do with ethics? A narrow approach would be that on the one hand people can and do abuse computer systems and on the other hand people can be abused by them. Weli known examples of the former are computer comes such as the theft of money, services and information. The latter can be exemplified by violation of privacy, health hazards and computer monitoring. Broadening the concept from computers to information systems (ISs) and information technology (IT) gives a wider perspective. Computers are just the hardware part of information systems which also include software, people and data. Information technology is the concept preferred today. It extends to communication, which is an essential part of information processing. Now let us repeat the question: What has IT to do with ethics? Verity mentioned changes in {open_quotes}how we record knowledge, communicate, learn, work, understand ourselves and the world{close_quotes}.

    1. Applications of Parallel Computers

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

      Computers Applications of Parallel Computers UCB CS267 Spring 2015 Tuesday & Thursday, 9:30-11:00 Pacific Time Applications of Parallel Computers, CS267, is a graduate-level course offered at the University of California, Berkeley. The course is being taught by UC Berkeley professor and LBNL Faculty Scientist Jim Demmel. CS267 is broadcast live over the internet and all NERSC users are invited to monitor the broadcast course, but course credit is available only to student registered for the

    2. Quantum steady computation

      SciTech Connect (OSTI)

      Castagnoli, G. )

      1991-08-10

      This paper reports that current conceptions of quantum mechanical computers inherit from conventional digital machines two apparently interacting features, machine imperfection and temporal development of the computational process. On account of machine imperfection, the process would become ideally reversible only in the limiting case of zero speed. Therefore the process is irreversible in practice and cannot be considered to be a fundamental quantum one. By giving up classical features and using a linear, reversible and non-sequential representation of the computational process - not realizable in classical machines - the process can be identified with the mathematical form of a quantum steady state. This form of steady quantum computation would seem to have an important bearing on the notion of cognition.

    3. Cloud computing security.

      SciTech Connect (OSTI)

      Shin, Dongwan; Claycomb, William R.; Urias, Vincent E.

      2010-10-01

      Cloud computing is a paradigm rapidly being embraced by government and industry as a solution for cost-savings, scalability, and collaboration. While a multitude of applications and services are available commercially for cloud-based solutions, research in this area has yet to fully embrace the full spectrum of potential challenges facing cloud computing. This tutorial aims to provide researchers with a fundamental understanding of cloud computing, with the goals of identifying a broad range of potential research topics, and inspiring a new surge in research to address current issues. We will also discuss real implementations of research-oriented cloud computing systems for both academia and government, including configuration options, hardware issues, challenges, and solutions.

    4. Theory, Modeling and Computation

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

      modeling and simulation will be enhanced not only by the wealth of data available from MaRIE but by the increased computational capacity made possible by the advent of extreme...

    5. Argonne Leadership Computing Facility

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

      a n n u a l r e p o r t 2 0 1 2 Argonne Leadership Computing Facility Director's Message .............................................................................................................................1 About ALCF ......................................................................................................................................... 2 IntroDuCIng MIrA Introducing Mira

    6. Applied Computer Science

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

      ADTSC » CCS » CCS-7 Applied Computer Science Innovative co-design of applications, algorithms, and architectures in order to enable scientific simulations at extreme scale Leadership Group Leader Linn Collins Email Deputy Group Leader (Acting) Bryan Lally Email Climate modeling visualization Results from a climate simulation computed using the Model for Prediction Across Scales (MPAS) code. This visualization shows the temperature of ocean currents using a green and blue color scale. These

    7. Computational Earth Science

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

      6 Computational Earth Science We develop and apply a range of high-performance computational methods and software tools to Earth science projects in support of environmental health, cleaner energy, and national security. Contact Us Group Leader Carl Gable Deputy Group Leader Gilles Bussod Email Profile pages header Search our Profile pages Hari Viswanathan inspects a microfluidic cell used to study the extraction of hydrocarbon fuels from a complex fracture network. EES-16's Subsurface Flow

    8. Computational Physics and Methods

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

      2 Computational Physics and Methods Performing innovative simulations of physics phenomena on tomorrow's scientific computing platforms Growth and emissivity of young galaxy hosting a supermassive black hole as calculated in cosmological code ENZO and post-processed with radiative transfer code AURORA. image showing detailed turbulence simulation, Rayleigh-Taylor Turbulence imaging: the largest turbulence simulations to date Advanced multi-scale modeling Turbulence datasets Density iso-surfaces

    9. Compute Reservation Request Form

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

      Compute Reservation Request Form Compute Reservation Request Form Users can request a scheduled reservation of machine resources if their jobs have special needs that cannot be accommodated through the regular batch system. A reservation brings some portion of the machine to a specific user or project for an agreed upon duration. Typically this is used for interactive debugging at scale or real time processing linked to some experiment or event. It is not intended to be used to guarantee fast

    10. New TRACC Cluster Computer

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

      TRACC Cluster Computer With the addition of a new cluster called Zephyr that was made operational in September of this year (2012), TRACC now offers two clusters to choose from: Zephyr and our original cluster that has now been named Phoenix. Zephyr was acquired from Atipa technologies, and it is a 92-node system with each node having two AMD 16 core, 2.3 GHz, 32 GB processors. See also Computing Resources.

    11. Advanced Simulation and Computing

      National Nuclear Security Administration (NNSA)

      NA-ASC-117R-09-Vol.1-Rev.0 Advanced Simulation and Computing PROGRAM PLAN FY09 October 2008 ASC Focal Point Robert Meisner, Director DOE/NNSA NA-121.2 202-586-0908 Program Plan Focal Point for NA-121.2 Njema Frazier DOE/NNSA NA-121.2 202-586-5789 A Publication of the Office of Advanced Simulation & Computing, NNSA Defense Programs i Contents Executive Summary ----------------------------------------------------------------------------------------------- 1 I. Introduction

    12. Computing | Department of Energy

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

      Computing Computing Fun fact: Most systems require air conditioning or chilled water to cool super powerful supercomputers, but the Olympus supercomputer at Pacific Northwest National Laboratory is cooled by the location's 65 degree groundwater. Traditional cooling systems could cost up to $61,000 in electricity each year, but this more efficient setup uses 70 percent less energy. | Photo courtesy of PNNL. Fun fact: Most systems require air conditioning or chilled water to cool super powerful

    13. Computation of the nonequilibrium flow in a gas dynamic laser

      SciTech Connect (OSTI)

      Yen, H.H.; Chen, L.Y.

      1984-04-01

      A three-modes-four temperatures vibrational relaxation model for a CO2-N2-H2O laser system is presented, and a set of fairly rigorous relaxation equations given. A series of problems related to computations of pseudo-one-dimensional nonequilibrium flows was analyzed and massive numerical computations using data obtained, were carried out for the rate of relaxation.

    14. Personal Annunciation Device - Energy Innovation Portal

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

      Find More Like This Return to Search Personal Annunciation Device Y-12 National Security Complex Contact Y12 About This Technology Publications: PDF Document Publication Fact Sheet (1,819 KB) PDF Document Publication Patent (275 KB) The PAD has concurrent alarms, displays building information and alarm status, and contains embedded &ldquo;intelligence&rdquo; for enhanced reliability. The PAD has concurrent alarms, displays building information and alarm status, and contains embedded

    15. PRIVACY IMPACT ASSESSMENT: Human Resources Personal Information

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

      Human Resources - Personal Information Change Request PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetext/neword/206/o2061.pdf Please complete electronically: no hand-written submissions will be accepted. This

    16. Microsoft Word - BPA Personal Property.doc

      Office of Environmental Management (EM)

      U.S. Department of Energy Office of Inspector General Office of Audit Services Audit Report Management Controls over the Bonneville Power Administration's Personal Property Accountability OAS-M-08-01 October 2007 Department of Energy vvasnlngron, UL LUSU:, October 1 , 2007 MEMORANDUM FOR TQ-YADMINISTRATOR, BONNEVILLE POWER ADNIINISTRATION [?L&& < / ( ' F'IIOM. or" Collard / Assistant Inspector General for Performance Audits Office of Inspector General INFORMATION: Audit Report

    17. Can Cloud Computing Address the Scientific Computing Requirements for DOE

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

      Researchers? Well, Yes, No and Maybe Can Cloud Computing Address the Scientific Computing Requirements for DOE Researchers? Well, Yes, No and Maybe Can Cloud Computing Address the Scientific Computing Requirements for DOE Researchers? Well, Yes, No and Maybe January 30, 2012 Jon Bashor, Jbashor@lbl.gov, +1 510-486-5849 Magellan1.jpg Magellan at NERSC After a two-year study of the feasibility of cloud computing systems for meeting the ever-increasing computational needs of scientists,

    18. Computing and Computational Sciences Directorate - Joint Institute for

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

      Computational Sciences Joint Institute for Computational Sciences To help realize the full potential of new-generation computers for advancing scientific discovery, the University of Tennessee (UT) and Oak Ridge National Laboratory (ORNL) have created the Joint Institute for Computational Sciences (JICS). JICS combines the experience and expertise in theoretical and computational science and engineering, computer science, and mathematics in these two institutions and focuses these skills on

    19. Computing and Computational Sciences Directorate - National Center for

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

      Computational Sciences Home National Center for Computational Sciences The National Center for Computational Sciences (NCCS), formed in 1992, is home to two of Oak Ridge National Laboratory's (ORNL's) high-performance computing projects-the Oak Ridge Leadership Computing Facility (OLCF) and the National Climate-Computing Research Center (NCRC). The OLCF (www.olcf.ornl.gov) was established at ORNL in 2004 with the mission of standing up a supercomputer 100 times more powerful than the leading

    20. Parallel Computing Environments and Methods for Power Distribution System Simulation

      SciTech Connect (OSTI)

      Lu, Ning; Taylor, Zachary T.; Chassin, David P.; Guttromson, Ross T.; Studham, Scott S.

      2005-11-10

      The development of cost-effective high-performance parallel computing on multi-processor super computers makes it attractive to port excessively time consuming simulation software from personal computers (PC) to super computes. The power distribution system simulator (PDSS) takes a bottom-up approach and simulates load at appliance level, where detailed thermal models for appliances are used. This approach works well for a small power distribution system consisting of a few thousand appliances. When the number of appliances increases, the simulation uses up the PC memory and its run time increases to a point where the approach is no longer feasible to model a practical large power distribution system. This paper presents an effort made to port a PC-based power distribution system simulator (PDSS) to a 128-processor shared-memory super computer. The paper offers an overview of the parallel computing environment and a description of the modification made to the PDSS model. The performances of the PDSS running on a standalone PC and on the super computer are compared. Future research direction of utilizing parallel computing in the power distribution system simulation is also addressed.

    1. in High Performance Computing Computer System, Cluster, and Networking...

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

      iSSH v. Auditd: Intrusion Detection in High Performance Computing Computer System, Cluster, and Networking Summer Institute David Karns, New Mexico State University Katy Protin,...

    2. Computing contingency statistics in parallel.

      SciTech Connect (OSTI)

      Bennett, Janine Camille; Thompson, David; Pebay, Philippe Pierre

      2010-09-01

      Statistical analysis is typically used to reduce the dimensionality of and infer meaning from data. A key challenge of any statistical analysis package aimed at large-scale, distributed data is to address the orthogonal issues of parallel scalability and numerical stability. Many statistical techniques, e.g., descriptive statistics or principal component analysis, are based on moments and co-moments and, using robust online update formulas, can be computed in an embarrassingly parallel manner, amenable to a map-reduce style implementation. In this paper we focus on contingency tables, through which numerous derived statistics such as joint and marginal probability, point-wise mutual information, information entropy, and {chi}{sup 2} independence statistics can be directly obtained. However, contingency tables can become large as data size increases, requiring a correspondingly large amount of communication between processors. This potential increase in communication prevents optimal parallel speedup and is the main difference with moment-based statistics where the amount of inter-processor communication is independent of data size. Here we present the design trade-offs which we made to implement the computation of contingency tables in parallel.We also study the parallel speedup and scalability properties of our open source implementation. In particular, we observe optimal speed-up and scalability when the contingency statistics are used in their appropriate context, namely, when the data input is not quasi-diffuse.

    3. Extensible Computational Chemistry Environment

      Energy Science and Technology Software Center (OSTI)

      2012-08-09

      ECCE provides a sophisticated graphical user interface, scientific visualization tools, and the underlying data management framework enabling scientists to efficiently set up calculations and store, retrieve, and analyze the rapidly growing volumes of data produced by computational chemistry studies. ECCE was conceived as part of the Environmental Molecular Sciences Laboratory construction to solve the problem of researchers being able to effectively utilize complex computational chemistry codes and massively parallel high performance compute resources. Bringing themore » power of these codes and resources to the desktops of researcher and thus enabling world class research without users needing a detailed understanding of the inner workings of either the theoretical codes or the supercomputers needed to run them was a grand challenge problem in the original version of the EMSL. ECCE allows collaboration among researchers using a web-based data repository where the inputs and results for all calculations done within ECCE are organized. ECCE is a first of kind end-to-end problem solving environment for all phases of computational chemistry research: setting up calculations with sophisticated GUI and direct manipulation visualization tools, submitting and monitoring calculations on remote high performance supercomputers without having to be familiar with the details of using these compute resources, and performing results visualization and analysis including creating publication quality images. ECCE is a suite of tightly integrated applications that are employed as the user moves through the modeling process.« less

    4. Recommending personally interested contents by text mining, filtering, and interfaces

      DOE Patents [OSTI]

      xu, Songhua

      2015-11-05

      A personalized content recommendation system includes a client interface device configured to monitor a user's information data stream. A collaborative filter remote from the client interface device generates automated predictions about the interests of the user. A database server stores personal behavioral profiles and user's preferences based on a plurality of monitored past behaviors and an output of the collaborative user personal interest inference engine. A programmed personal content recommendation server filters items in an incoming information stream with the personal behavioral profile and identifies only those items of the incoming information stream that substantially matches the personal behavioral profile. The identified personally relevant content is then recommended to the user following some priority that may consider the similarity between the personal interest matches, the context of the user information consumption behaviors that may be shown by the user's content consumption mode.

    5. Recommending personally interested contents by text mining, filtering, and interfaces

      DOE Patents [OSTI]

      Xu, Songhua

      2015-10-27

      A personalized content recommendation system includes a client interface device configured to monitor a user's information data stream. A collaborative filter remote from the client interface device generates automated predictions about the interests of the user. A database server stores personal behavioral profiles and user's preferences based on a plurality of monitored past behaviors and an output of the collaborative user personal interest inference engine. A programmed personal content recommendation server filters items in an incoming information stream with the personal behavioral profile and identifies only those items of the incoming information stream that substantially matches the personal behavioral profile. The identified personally relevant content is then recommended to the user following some priority that may consider the similarity between the personal interest matches, the context of the user information consumption behaviors that may be shown by the user's content consumption mode.

    6. Information Science, Computing, Applied Math

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

      Capabilities » Information Science, Computing, Applied Math /science-innovation/_assets/images/icon-science.jpg Information Science, Computing, Applied Math National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Computer, Computational, and Statistical Sciences (CCS)» High Performance Computing (HPC)» Extreme Scale Computing, Co-design»

    7. Super recycled water: quenching computers

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

      Super recycled water: quenching computers Super recycled water: quenching computers New facility and methods support conserving water and creating recycled products. Using reverse...

    8. Computer simulation | Open Energy Information

      Open Energy Info (EERE)

      Computer simulation Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Computer simulation Author wikipedia Published wikipedia, 2013 DOI Not Provided...

    9. NREL: Computational Science Home Page

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

      high-performance computing, computational science, applied mathematics, scientific data management, visualization, and informatics. NREL is home to the largest high performance...

    10. SCC: The Strategic Computing Complex

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

      computer room, which is an open room about three-fourths the size of a football field. The Strategic Computing Complex (SCC) at the Los Alamos National Laboratory...

    11. Human-computer interface

      DOE Patents [OSTI]

      Anderson, Thomas G.

      2004-12-21

      The present invention provides a method of human-computer interfacing. Force feedback allows intuitive navigation and control near a boundary between regions in a computer-represented space. For example, the method allows a user to interact with a virtual craft, then push through the windshield of the craft to interact with the virtual world surrounding the craft. As another example, the method allows a user to feel transitions between different control domains of a computer representation of a space. The method can provide for force feedback that increases as a user's locus of interaction moves near a boundary, then perceptibly changes (e.g., abruptly drops or changes direction) when the boundary is traversed.

    12. Synchronizing compute node time bases in a parallel computer

      DOE Patents [OSTI]

      Chen, Dong; Faraj, Daniel A; Gooding, Thomas M; Heidelberger, Philip

      2014-12-30

      Synchronizing time bases in a parallel computer that includes compute nodes organized for data communications in a tree network, where one compute node is designated as a root, and, for each compute node: calculating data transmission latency from the root to the compute node; configuring a thread as a pulse waiter; initializing a wakeup unit; and performing a local barrier operation; upon each node completing the local barrier operation, entering, by all compute nodes, a global barrier operation; upon all nodes entering the global barrier operation, sending, to all the compute nodes, a pulse signal; and for each compute node upon receiving the pulse signal: waking, by the wakeup unit, the pulse waiter; setting a time base for the compute node equal to the data transmission latency between the root node and the compute node; and exiting the global barrier operation.

    13. Synchronizing compute node time bases in a parallel computer

      DOE Patents [OSTI]

      Chen, Dong; Faraj, Daniel A; Gooding, Thomas M; Heidelberger, Philip

      2015-01-27

      Synchronizing time bases in a parallel computer that includes compute nodes organized for data communications in a tree network, where one compute node is designated as a root, and, for each compute node: calculating data transmission latency from the root to the compute node; configuring a thread as a pulse waiter; initializing a wakeup unit; and performing a local barrier operation; upon each node completing the local barrier operation, entering, by all compute nodes, a global barrier operation; upon all nodes entering the global barrier operation, sending, to all the compute nodes, a pulse signal; and for each compute node upon receiving the pulse signal: waking, by the wakeup unit, the pulse waiter; setting a time base for the compute node equal to the data transmission latency between the root node and the compute node; and exiting the global barrier operation.

    14. Computer Security Risk Assessment

      Energy Science and Technology Software Center (OSTI)

      1992-02-11

      LAVA/CS (LAVA for Computer Security) is an application of the Los Alamos Vulnerability Assessment (LAVA) methodology specific to computer and information security. The software serves as a generic tool for identifying vulnerabilities in computer and information security safeguards systems. Although it does not perform a full risk assessment, the results from its analysis may provide valuable insights into security problems. LAVA/CS assumes that the system is exposed to both natural and environmental hazards and tomore » deliberate malevolent actions by either insiders or outsiders. The user in the process of answering the LAVA/CS questionnaire identifies missing safeguards in 34 areas ranging from password management to personnel security and internal audit practices. Specific safeguards protecting a generic set of assets (or targets) from a generic set of threats (or adversaries) are considered. There are four generic assets: the facility, the organization''s environment; the hardware, all computer-related hardware; the software, the information in machine-readable form stored both on-line or on transportable media; and the documents and displays, the information in human-readable form stored as hard-copy materials (manuals, reports, listings in full-size or microform), film, and screen displays. Two generic threats are considered: natural and environmental hazards, storms, fires, power abnormalities, water and accidental maintenance damage; and on-site human threats, both intentional and accidental acts attributable to a perpetrator on the facility''s premises.« less

    15. MHD computations for stellarators

      SciTech Connect (OSTI)

      Johnson, J.L.

      1985-12-01

      Considerable progress has been made in the development of computational techniques for studying the magnetohydrodynamic equilibrium and stability properties of three-dimensional configurations. Several different approaches have evolved to the point where comparison of results determined with different techniques shows good agreement. 55 refs., 7 figs.

    16. Computed microtomography of reservoir core samples

      SciTech Connect (OSTI)

      Coles, M.E.; Muegge, E.L.; Spanne, P.; Jones, K.W.

      1995-03-01

      X-ray computed tomography (CT) is often utilized to evaluate and characterize structural characteristics within reservoir core material systems. Generally, medical CT scanners have been employed because of their availability and ease of use. Of interest lately has been the acquisition of three-dimensional, high resolution descriptions of rock and pore structures for characterization of the porous media and for modeling of single and multiphase transport processes. The spatial resolution of current medical CT scanners is too coarse for pore level imaging of most core samples. Recently developed high resolution computed microtomography (CMT) using synchrotron X-ray sources is analogous to conventional medical CT scanning and provides the ability to obtain three-dimensional images of specimens with a spatial resolution on the order of micrometers. Application of this technique to the study of core samples provides two- and three-dimensional high resolution description of pore structure and mineral distributions. Pore space and interconnectivity is accurately characterized and visualized. Computed microtomography data can serve as input into pore-level simulation techniques. A generalized explanation of the technique is provided, with comparison to conventional CT scanning techniques and results. Computed microtomographic results of several sandstone samples are presented and discussed. Bulk porosity values and mineralogical identification were obtained from the microtomograms and compared with gas porosity and scanning electron microscope results on tandem samples.

    17. Sandia National Laboratories: Advanced Simulation and Computing...

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

      ASC Advanced Simulation and Computing Computational Systems & Software Environment Crack Modeling The Computational Systems & Software Environment program builds integrated,...

    18. Extreme Scale Computing, Co-design

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

      Information Science, Computing, Applied Math Extreme Scale Computing, Co-design Extreme Scale Computing, Co-design Computational co-design may facilitate revolutionary designs ...

    19. Visitor Hanford Computer Access Request - Hanford Site

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

      Visitor Hanford Computer Access Request Visitor Hanford Computer Access Request Visitor Hanford Computer Access Request Visitor Hanford Computer Access Request Email Email Page |...

    20. Software and High Performance Computing

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

      Software and High Performance Computing Software and High Performance Computing Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of strategic national interest Contact thumbnail of Kathleen McDonald Head of Intellectual Property, Business Development Executive Kathleen McDonald Richard P. Feynman Center for Innovation (505) 667-5844 Email Software Computational physics, computer science, applied mathematics, statistics and the

    1. Magellan: A Cloud Computing Testbed

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

      Magellan News & Announcements Archive Petascale Initiative Exascale Computing APEX Home » R & D » Archive » Magellan: A Cloud Computing Testbed Magellan: A Cloud Computing Testbed Cloud computing is gaining a foothold in the business world, but can clouds meet the specialized needs of scientists? That was one of the questions NERSC's Magellan cloud computing testbed explored between 2009 and 2011. The goal of Magellan, a project funded through the U.S. Department of Energy (DOE) Oce

    2. Computer Algebra System

      Energy Science and Technology Software Center (OSTI)

      1992-05-04

      DOE-MACSYMA (Project MAC''s SYmbolic MAnipulation system) is a large computer programming system written in LISP. With DOE-MACSYMA the user can differentiate, integrate, take limits, solve systems of linear or polynomial equations, factor polynomials, expand functions in Laurent or Taylor series, solve differential equations (using direct or transform methods), compute Poisson series, plot curves, and manipulate matrices and tensors. A language similar to ALGOL-60 permits users to write their own programs for transforming symbolic expressions. Franzmore » Lisp OPUS 38 provides the environment for the Encore, Celerity, and DEC VAX11 UNIX,SUN(OPUS) versions under UNIX and the Alliant version under Concentrix. Kyoto Common Lisp (KCL) provides the environment for the SUN(KCL),Convex, and IBM PC under UNIX and Data General under AOS/VS.« less

    3. Exploratory Experimentation and Computation

      SciTech Connect (OSTI)

      Bailey, David H.; Borwein, Jonathan M.

      2010-02-25

      We believe the mathematical research community is facing a great challenge to re-evaluate the role of proof in light of recent developments. On one hand, the growing power of current computer systems, of modern mathematical computing packages, and of the growing capacity to data-mine on the Internet, has provided marvelous resources to the research mathematician. On the other hand, the enormous complexity of many modern capstone results such as the Poincare conjecture, Fermat's last theorem, and the classification of finite simple groups has raised questions as to how we can better ensure the integrity of modern mathematics. Yet as the need and prospects for inductive mathematics blossom, the requirement to ensure the role of proof is properly founded remains undiminished.

    4. GPU Computational Screening

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

      GPU Computational Screening of Carbon Capture Materials J. Kim 1 , A Koniges 1 , R. Martin 1 , M. Haranczyk 1 , J. Swisher 2 , and B. Smit 1,2 1 Lawrence Berkeley National Laboratory, Berkeley, CA 94720 2 Department of Chemical Engineering, University of California, Berkeley, Berkeley, CA 94720 E-mail: jihankim@lbl.gov Abstract. In order to reduce the current costs associated with carbon capture technologies, novel materials such as zeolites and metal-organic frameworks that are based on

    5. Cloud Computing Services

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

      Computing Services - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

    6. High Performance Computing

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

      Performance Computing - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

    7. Argonne Leadership Computing Facility

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

      Anti-HIV antibody Software optimized on Mira advances design of mini-proteins for medicines, materials Scientists at the University of Washington are using Mira to virtually design unique, artificial peptides, or short proteins. Read More Celebrating 10 years 10 science highlights celebrating 10 years of Argonne Leadership Computing Facility To celebrate our 10th anniversary, we're highlighting 10 science accomplishments since we opened our doors. Read More Bill Gropp works with students during

    8. Applied & Computational Math

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

      & Computational Math - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

    9. From Federal Computer Week:

      National Nuclear Security Administration (NNSA)

      Federal Computer Week: Energy agency launches performance-based pay system By Richard W. Walker Published on March 27, 2008 The Energy Department's National Nuclear Security Administration has launched a new performance- based pay system involving about 2,000 of its 2,500 employees. NNSA officials described the effort as a pilot project that will test the feasibility of the new system, which collapses the traditional 15 General Schedule pay bands into broader pay bands. The new structure

    10. Computed Tomography Status

      DOE R&D Accomplishments [OSTI]

      Hansche, B. D.

      1983-01-01

      Computed tomography (CT) is a relatively new radiographic technique which has become widely used in the medical field, where it is better known as computerized axial tomographic (CAT) scanning. This technique is also being adopted by the industrial radiographic community, although the greater range of densities, variation in samples sizes, plus possible requirement for finer resolution make it difficult to duplicate the excellent results that the medical scanners have achieved.

    11. Development of computer graphics

      SciTech Connect (OSTI)

      Nuttall, H.E.

      1989-07-01

      The purpose of this project was to screen and evaluate three graphics packages as to their suitability for displaying concentration contour graphs. The information to be displayed is from computer code simulations describing air-born contaminant transport. The three evaluation programs were MONGO (John Tonry, MIT, Cambridge, MA, 02139), Mathematica (Wolfram Research Inc.), and NCSA Image (National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign). After a preliminary investigation of each package, NCSA Image appeared to be significantly superior for generating the desired concentration contour graphs. Hence subsequent work and this report describes the implementation and testing of NCSA Image on both an Apple MacII and Sun 4 computers. NCSA Image includes several utilities (Layout, DataScope, HDF, and PalEdit) which were used in this study and installed on Dr. Ted Yamada`s Mac II computer. Dr. Yamada provided two sets of air pollution plume data which were displayed using NCSA Image. Both sets were animated into a sequential expanding plume series.

    12. Computing for Finance

      ScienceCinema (OSTI)

      None

      2011-10-06

      The finance sector is one of the driving forces for the use of distributed or Grid computing for business purposes. The speakers will review the state-of-the-art of high performance computing in the financial sector, and provide insight into how different types of Grid computing ? from local clusters to global networks - are being applied to financial applications. They will also describe the use of software and techniques from physics, such as Monte Carlo simulations, in the financial world. There will be four talks of 20min each. The talk abstracts and speaker bios are listed below. This will be followed by a Q&A; panel session with the speakers. From 19:00 onwards there will be a networking cocktail for audience and speakers. This is an EGEE / CERN openlab event organized in collaboration with the regional business network rezonance.ch. A webcast of the event will be made available for subsequent viewing, along with powerpoint material presented by the speakers. Attendance is free and open to all. Registration is mandatory via www.rezonance.ch, including for CERN staff. 1. Overview of High Performance Computing in the Financial Industry Michael Yoo, Managing Director, Head of the Technical Council, UBS Presentation will describe the key business challenges driving the need for HPC solutions, describe the means in which those challenges are being addressed within UBS (such as GRID) as well as the limitations of some of these solutions, and assess some of the newer HPC technologies which may also play a role in the Financial Industry in the future. Speaker Bio: Michael originally joined the former Swiss Bank Corporation in 1994 in New York as a developer on a large data warehouse project. In 1996 he left SBC and took a role with Fidelity Investments in Boston. Unable to stay away for long, he returned to SBC in 1997 while working for Perot Systems in Singapore. Finally, in 1998 he formally returned to UBS in Stamford following the merger with SBC and has remained with UBS for the past 9 years. During his tenure at UBS, he has had a number of leadership roles within IT in development, support and architecture. In 2006 Michael relocated to Switzerland to take up his current role as head of the UBS IB Technical Council, responsible for the overall technology strategy and vision of the Investment Bank. One of Michael's key responsibilities is to manage the UBS High Performance Computing Research Lab and he has been involved in a number of initiatives in the HPC space. 2. Grid in the Commercial WorldFred Gedling, Chief Technology Officer EMEA and Senior Vice President Global Services, DataSynapse Grid computing gets mentions in the press for community programs starting last decade with "Seti@Home". Government, national and supranational initiatives in grid receive some press. One of the IT-industries' best-kept secrets is the use of grid computing by commercial organizations with spectacular results. Grid Computing and its evolution into Application Virtualization is discussed and how this is key to the next generation data center. Speaker Bio: Fred Gedling holds the joint roles of Chief Technology Officer for EMEA and Senior Vice President of Global Services at DataSynapse, a global provider of application virtualisation software. Based in London and working closely with organisations seeking to optimise their IT infrastructures, Fred offers unique insights into the technology of virtualisation as well as the methodology of establishing ROI and rapid deployment to the immediate advantage of the business. Fred has more than fifteen years experience of enterprise middleware and high-performance infrastructures. Prior to DataSynapse he worked in high performance CRM middleware and was the CTO EMEA for New Era of Networks (NEON) during the rapid growth of Enterprise Application Integration. His 25-year career in technology also includes management positions at Goldman Sachs and Stratus Computer. Fred holds a First Class Bsc (Hons) degree in Physics with Astrophysics from the University of Leeds and had the privilege of being a summer student at CERN.3. Opportunities for gLite in finance and related industriesAdam Vile, Head of Grid, HPC and Technical Computing, Excelian Ltd.gLite, the Grid software developed by the EGEE project, has been exceedingly successful as an enabling infrastructure, and has been a massive success in bringing together scientific and technical communities to provide the compute power to address previously incomputable problems. Not so in the finance industry. In its current form gLite would be a business disabler. There are other middleware tools that solve the finance communities compute problems much better. Things are moving on, however. There are moves afoot in the open source community to evolve the technology to address other, more sophisticated needs such as utility and interactive computing. In this talk, I will describe how Excelian is providing Grid consultancy services for the finance community and how, through its relationship to the EGEE project, Excelian is helping to identify and exploit opportunities as the research and business worlds converge. Because of the strong third party presence in the finance industry, such opportunities are few and far between, but they are there, especially as we expand sideways into related verticals such as the smaller hedge funds and energy companies. This talk will give an overview of the barriers to adoption of gLite in the finance industry and highlight some of the opportunities offered in this and related industries as the ideas around Grid mature. Speaker Bio: Dr Adam Vile is a senior consultant and head of the Grid and HPC practice at Excelian, a consultancy that focuses on financial markets professional services. He has spent many years in investment banking, as a developer, project manager and architect in both front and back office. Before joining Excelian he was senior Grid and HPC architect at Barclays Capital. Prior to joining investment banking, Adam spent a number of years lecturing in IT and mathematics at a UK University and maintains links with academia through lectures, research and through validation and steering of postgraduate courses. He is a chartered mathematician and was the conference chair of the Institute of Mathematics and its Applications first conference in computational Finance.4. From Monte Carlo to Wall Street Daniel Egloff, Head of Financial Engineering Computing Unit, Zrich Cantonal Bank High performance computing techniques provide new means to solve computationally hard problems in the financial service industry. First I consider Monte Carlo simulation and illustrate how it can be used to implement a sophisticated credit risk management and economic capital framework. From a HPC perspective, basic Monte Carlo simulation is embarrassingly parallel and can be implemented efficiently on distributed memory clusters. Additional difficulties arise for adaptive variance reduction schemes, if the information content in a sample is very small, and if the amount of simulated date becomes huge such that incremental processing algorithms are indispensable. We discuss the business value of an advanced credit risk quantification which is particularly compelling in these days. While Monte Carlo simulation is a very versatile tool it is not always the preferred solution for the pricing of complex products like multi asset options, structured products, or credit derivatives. As a second application I show how operator methods can be used to develop a pricing framework. The scalability of operator methods relies heavily on optimized dense matrix-matrix multiplications and requires specialized BLAS level-3 implementations provided by specialized FPGA or GPU boards. Speaker Bio: Daniel Egloff studied mathematics, theoretical physics, and computer science at the University of Zurich and the ETH Zurich. He holds a PhD in Mathematics from University of Fribourg, Switzerland. After his PhD he started to work for a large Swiss insurance company in the area of asset and liability management. He continued his professional career in the consulting industry. At KPMG and Arthur Andersen he consulted international clients and implemented quantitative risk management solutions for financial institutions and insurance companies. In 2002 he joined Zurich Cantonal Bank. He was assigned to develop and implement credit portfolio risk and economic capital methodologies. He built up a competence center for high performance and cluster computing. Currently, Daniel Egloff is heading the Financial Computing unit in the ZKB Financial Engineering division. He and his team is engineering and operating high performance cluster applications for computationally intensive problems in financial risk management.

    13. Computing for Finance

      ScienceCinema (OSTI)

      None

      2011-10-06

      The finance sector is one of the driving forces for the use of distributed or Grid computing for business purposes. The speakers will review the state-of-the-art of high performance computing in the financial sector, and provide insight into how different types of Grid computing ? from local clusters to global networks - are being applied to financial applications. They will also describe the use of software and techniques from physics, such as Monte Carlo simulations, in the financial world. There will be four talks of 20min each. The talk abstracts and speaker bios are listed below. This will be followed by a Q&A; panel session with the speakers. From 19:00 onwards there will be a networking cocktail for audience and speakers. This is an EGEE / CERN openlab event organized in collaboration with the regional business network rezonance.ch. A webcast of the event will be made available for subsequent viewing, along with powerpoint material presented by the speakers. Attendance is free and open to all. Registration is mandatory via www.rezonance.ch, including for CERN staff. 1. Overview of High Performance Computing in the Financial Industry Michael Yoo, Managing Director, Head of the Technical Council, UBS Presentation will describe the key business challenges driving the need for HPC solutions, describe the means in which those challenges are being addressed within UBS (such as GRID) as well as the limitations of some of these solutions, and assess some of the newer HPC technologies which may also play a role in the Financial Industry in the future. Speaker Bio: Michael originally joined the former Swiss Bank Corporation in 1994 in New York as a developer on a large data warehouse project. In 1996 he left SBC and took a role with Fidelity Investments in Boston. Unable to stay away for long, he returned to SBC in 1997 while working for Perot Systems in Singapore. Finally, in 1998 he formally returned to UBS in Stamford following the merger with SBC and has remained with UBS for the past 9 years. During his tenure at UBS, he has had a number of leadership roles within IT in development, support and architecture. In 2006 Michael relocated to Switzerland to take up his current role as head of the UBS IB Technical Council, responsible for the overall technology strategy and vision of the Investment Bank. One of Michael's key responsibilities is to manage the UBS High Performance Computing Research Lab and he has been involved in a number of initiatives in the HPC space. 2. Grid in the Commercial WorldFred Gedling, Chief Technology Officer EMEA and Senior Vice President Global Services, DataSynapse Grid computing gets mentions in the press for community programs starting last decade with "Seti@Home". Government, national and supranational initiatives in grid receive some press. One of the IT-industries' best-kept secrets is the use of grid computing by commercial organizations with spectacular results. Grid Computing and its evolution into Application Virtualization is discussed and how this is key to the next generation data center. Speaker Bio: Fred Gedling holds the joint roles of Chief Technology Officer for EMEA and Senior Vice President of Global Services at DataSynapse, a global provider of application virtualisation software. Based in London and working closely with organisations seeking to optimise their IT infrastructures, Fred offers unique insights into the technology of virtualisation as well as the methodology of establishing ROI and rapid deployment to the immediate advantage of the business. Fred has more than fifteen years experience of enterprise middleware and high-performance infrastructures. Prior to DataSynapse he worked in high performance CRM middleware and was the CTO EMEA for New Era of Networks (NEON) during the rapid growth of Enterprise Application Integration. His 25-year career in technology also includes management positions at Goldman Sachs and Stratus Computer. Fred holds a First Class Bsc (Hons) degree in Physics with Astrophysics from the University of Leeds and had the privilege of being a summer student at CERN.3. Opportunities for gLite in finance and related industriesAdam Vile, Head of Grid, HPC and Technical Computing, Excelian Ltd.gLite, the Grid software developed by the EGEE project, has been exceedingly successful as an enabling infrastructure, and has been a massive success in bringing together scientific and technical communities to provide the compute power to address previously incomputable problems. Not so in the finance industry. In its current form gLite would be a business disabler. There are other middleware tools that solve the finance communities compute problems much better. Things are moving on, however. There are moves afoot in the open source community to evolve the technology to address other, more sophisticated needs such as utility and interactive computing. In this talk, I will describe how Excelian is providing Grid consultancy services for the finance community and how, through its relationship to the EGEE project, Excelian is helping to identify and exploit opportunities as the research and business worlds converge. Because of the strong third party presence in the finance industry, such opportunities are few and far between, but they are there, especially as we expand sideways into related verticals such as the smaller hedge funds and energy companies. This talk will give an overview of the barriers to adoption of gLite in the finance industry and highlight some of the opportunities offered in this and related industries as the ideas around Grid mature. Speaker Bio: Dr Adam Vile is a senior consultant and head of the Grid and HPC practice at Excelian, a consultancy that focuses on financial markets professional services. He has spent many years in investment banking, as a developer, project manager and architect in both front and back office. Before joining Excelian he was senior Grid and HPC architect at Barclays Capital. Prior to joining investment banking, Adam spent a number of years lecturing in IT and mathematics at a UK University and maintains links with academia through lectures, research and through validation and steering of postgraduate courses. He is a chartered mathematician and was the conference chair of the Institute of Mathematics and its Applications first conference in computational Finance.4. From Monte Carlo to Wall Street Daniel Egloff, Head of Financial Engineering Computing Unit, Zürich Cantonal Bank High performance computing techniques provide new means to solve computationally hard problems in the financial service industry. First I consider Monte Carlo simulation and illustrate how it can be used to implement a sophisticated credit risk management and economic capital framework. From a HPC perspective, basic Monte Carlo simulation is embarrassingly parallel and can be implemented efficiently on distributed memory clusters. Additional difficulties arise for adaptive variance reduction schemes, if the information content in a sample is very small, and if the amount of simulated date becomes huge such that incremental processing algorithms are indispensable. We discuss the business value of an advanced credit risk quantification which is particularly compelling in these days. While Monte Carlo simulation is a very versatile tool it is not always the preferred solution for the pricing of complex products like multi asset options, structured products, or credit derivatives. As a second application I show how operator methods can be used to develop a pricing framework. The scalability of operator methods relies heavily on optimized dense matrix-matrix multiplications and requires specialized BLAS level-3 implementations provided by specialized FPGA or GPU boards. Speaker Bio: Daniel Egloff studied mathematics, theoretical physics, and computer science at the University of Zurich and the ETH Zurich. He holds a PhD in Mathematics from University of Fribourg, Switzerland. After his PhD he started to work for a large Swiss insurance company in the area of asset and liability management. He continued his professional career in the consulting industry. At KPMG and Arthur Andersen he consulted international clients and implemented quantitative risk management solutions for financial institutions and insurance companies. In 2002 he joined Zurich Cantonal Bank. He was assigned to develop and implement credit portfolio risk and economic capital methodologies. He built up a competence center for high performance and cluster computing. Currently, Daniel Egloff is heading the Financial Computing unit in the ZKB Financial Engineering division. He and his team is engineering and operating high performance cluster applications for computationally intensive problems in financial risk management.

    14. Computing for Finance

      SciTech Connect (OSTI)

      2010-03-24

      The finance sector is one of the driving forces for the use of distributed or Grid computing for business purposes. The speakers will review the state-of-the-art of high performance computing in the financial sector, and provide insight into how different types of Grid computing – from local clusters to global networks - are being applied to financial applications. They will also describe the use of software and techniques from physics, such as Monte Carlo simulations, in the financial world. There will be four talks of 20min each. The talk abstracts and speaker bios are listed below. This will be followed by a Q&A; panel session with the speakers. From 19:00 onwards there will be a networking cocktail for audience and speakers. This is an EGEE / CERN openlab event organized in collaboration with the regional business network rezonance.ch. A webcast of the event will be made available for subsequent viewing, along with powerpoint material presented by the speakers. Attendance is free and open to all. Registration is mandatory via www.rezonance.ch, including for CERN staff. 1. Overview of High Performance Computing in the Financial Industry Michael Yoo, Managing Director, Head of the Technical Council, UBS Presentation will describe the key business challenges driving the need for HPC solutions, describe the means in which those challenges are being addressed within UBS (such as GRID) as well as the limitations of some of these solutions, and assess some of the newer HPC technologies which may also play a role in the Financial Industry in the future. Speaker Bio: Michael originally joined the former Swiss Bank Corporation in 1994 in New York as a developer on a large data warehouse project. In 1996 he left SBC and took a role with Fidelity Investments in Boston. Unable to stay away for long, he returned to SBC in 1997 while working for Perot Systems in Singapore. Finally, in 1998 he formally returned to UBS in Stamford following the merger with SBC and has remained with UBS for the past 9 years. During his tenure at UBS, he has had a number of leadership roles within IT in development, support and architecture. In 2006 Michael relocated to Switzerland to take up his current role as head of the UBS IB Technical Council, responsible for the overall technology strategy and vision of the Investment Bank. One of Michael's key responsibilities is to manage the UBS High Performance Computing Research Lab and he has been involved in a number of initiatives in the HPC space. 2. Grid in the Commercial WorldFred Gedling, Chief Technology Officer EMEA and Senior Vice President Global Services, DataSynapse Grid computing gets mentions in the press for community programs starting last decade with "Seti@Home". Government, national and supranational initiatives in grid receive some press. One of the IT-industries' best-kept secrets is the use of grid computing by commercial organizations with spectacular results. Grid Computing and its evolution into Application Virtualization is discussed and how this is key to the next generation data center. Speaker Bio: Fred Gedling holds the joint roles of Chief Technology Officer for EMEA and Senior Vice President of Global Services at DataSynapse, a global provider of application virtualisation software. Based in London and working closely with organisations seeking to optimise their IT infrastructures, Fred offers unique insights into the technology of virtualisation as well as the methodology of establishing ROI and rapid deployment to the immediate advantage of the business. Fred has more than fifteen years experience of enterprise middleware and high-performance infrastructures. Prior to DataSynapse he worked in high performance CRM middleware and was the CTO EMEA for New Era of Networks (NEON) during the rapid growth of Enterprise Application Integration. His 25-year career in technology also includes management positions at Goldman Sachs and Stratus Computer. Fred holds a First Class Bsc (Hons) degree in Physics with Astrophysics from the University of Leeds and had the privilege of being a summer student at CERN.3. Opportunities for gLite in finance and related industriesAdam Vile, Head of Grid, HPC and Technical Computing, Excelian Ltd.gLite, the Grid software developed by the EGEE project, has been exceedingly successful as an enabling infrastructure, and has been a massive success in bringing together scientific and technical communities to provide the compute power to address previously incomputable problems. Not so in the finance industry. In its current form gLite would be a business disabler. There are other middleware tools that solve the finance communities compute problems much better. Things are moving on, however. There are moves afoot in the open source community to evolve the technology to address other, more sophisticated needs such as utility and interactive computing. In this talk, I will describe how Excelian is providing Grid consultancy services for the finance community and how, through its relationship to the EGEE project, Excelian is helping to identify and exploit opportunities as the research and business worlds converge. Because of the strong third party presence in the finance industry, such opportunities are few and far between, but they are there, especially as we expand sideways into related verticals such as the smaller hedge funds and energy companies. This talk will give an overview of the barriers to adoption of gLite in the finance industry and highlight some of the opportunities offered in this and related industries as the ideas around Grid mature. Speaker Bio: Dr Adam Vile is a senior consultant and head of the Grid and HPC practice at Excelian, a consultancy that focuses on financial markets professional services. He has spent many years in investment banking, as a developer, project manager and architect in both front and back office. Before joining Excelian he was senior Grid and HPC architect at Barclays Capital. Prior to joining investment banking, Adam spent a number of years lecturing in IT and mathematics at a UK University and maintains links with academia through lectures, research and through validation and steering of postgraduate courses. He is a chartered mathematician and was the conference chair of the Institute of Mathematics and its Applications first conference in computational Finance.4. From Monte Carlo to Wall Street Daniel Egloff, Head of Financial Engineering Computing Unit, Zürich Cantonal Bank High performance computing techniques provide new means to solve computationally hard problems in the financial service industry. First I consider Monte Carlo simulation and illustrate how it can be used to implement a sophisticated credit risk management and economic capital framework. From a HPC perspective, basic Monte Carlo simulation is embarrassingly parallel and can be implemented efficiently on distributed memory clusters. Additional difficulties arise for adaptive variance reduction schemes, if the information content in a sample is very small, and if the amount of simulated date becomes huge such that incremental processing algorithms are indispensable. We discuss the business value of an advanced credit risk quantification which is particularly compelling in these days. While Monte Carlo simulation is a very versatile tool it is not always the preferred solution for the pricing of complex products like multi asset options, structured products, or credit derivatives. As a second application I show how operator methods can be used to develop a pricing framework. The scalability of operator methods relies heavily on optimized dense matrix-matrix multiplications and requires specialized BLAS level-3 implementations provided by specialized FPGA or GPU boards. Speaker Bio: Daniel Egloff studied mathematics, theoretical physics, and computer science at the University of Zurich and the ETH Zurich. He holds a PhD in Mathematics from University of Fribourg, Switzerland. After his PhD he started to work for a large Swiss insurance company in the area of asset and liability management. He continued his professional career in the consulting industry. At KPMG and Arthur Andersen he consulted international clients and implemented quantitative risk management solutions for financial institutions and insurance companies. In 2002 he joined Zurich Cantonal Bank. He was assigned to develop and implement credit portfolio risk and economic capital methodologies. He built up a competence center for high performance and cluster computing. Currently, Daniel Egloff is heading the Financial Computing unit in the ZKB Financial Engineering division. He and his team is engineering and operating high performance cluster applications for computationally intensive problems in financial risk management.

    15. Computational Nanophotonics: Model Optical Interactions and Transport in Tailored Nanosystem Architectures

      SciTech Connect (OSTI)

      Stockman, Mark; Gray, Steven

      2014-02-21

      The program is directed toward development of new computational approaches to photoprocesses in nanostructures whose geometry and composition are tailored to obtain desirable optical responses. The emphasis of this specific program is on the development of computational methods and prediction and computational theory of new phenomena of optical energy transfer and transformation on the extreme nanoscale (down to a few nanometers).

    16. The design of a scalable, fixed-time computer benchmark

      SciTech Connect (OSTI)

      Gustafson, J.; Rover, D.; Elbert, S.; Carter, M.

      1990-10-01

      By using the principle of fixed time benchmarking, it is possible to compare a very wide range of computers, from a small personal computer to the most powerful parallel supercomputer, an a single scale. Fixed-time benchmarks promise far greater longevity than those based on a particular problem size, and are more appropriate for grand challenge'' capability comparison. We present the design of a benchmark, SLALOM{trademark}, that scales automatically to the computing power available, and corrects several deficiencies in various existing benchmarks: it is highly scalable, it solves a real problem, it includes input and output times, and it can be run on parallel machines of all kinds, using any convenient language. The benchmark provides a reasonable estimate of the size of problem solvable on scientific computers. Results are presented that span six orders of magnitude for contemporary computers of various architectures. The benchmarks also can be used to demonstrate a new source of superlinear speedup in parallel computers. 15 refs., 14 figs., 3 tabs.

    17. High Performance Computing at the Oak Ridge Leadership Computing Facility

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

      High Performance Computing at the Oak Ridge Leadership Computing Facility Go to Menu Page 2 Outline * Our Mission * Computer Systems: Present, Past, Future * Challenges Along the Way * Resources for Users Go to Menu Page 3 Our Mission Go to Menu Page 4 * World's most powerful computing facility * Nation's largest concentration of open source materials research * $1.3B budget * 4,250 employees * 3,900 research guests annually * $350 million invested in modernization * Nation's most diverse energy

    18. Multiprocessor computing for images

      SciTech Connect (OSTI)

      Cantoni, V. ); Levialdi, S. )

      1988-08-01

      A review of image processing systems developed until now is given, highlighting the weak points of such systems and the trends that have dictated their evolution through the years producing different generations of machines. Each generation may be characterized by the hardware architecture, the programmability features and the relative application areas. The need for multiprocessing hierarchical systems is discussed focusing on pyramidal architectures. Their computational paradigms, their virtual and physical implementation, their programming and software requirements, and capabilities by means of suitable languages, are discussed.

    19. computational-hydraulics

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

      and Aerodynamics using STAR-CCM+ for CFD Analysis March 21-22, 2012 Argonne, Illinois Dr. Steven Lottes This email address is being protected from spambots. You need JavaScript enabled to view it. A training course in the use of computational hydraulics and aerodynamics CFD software using CD-adapco's STAR-CCM+ for analysis will be held at TRACC from March 21-22, 2012. The course assumes a basic knowledge of fluid mechanics and will make extensive use of hands on tutorials. CD-adapco will issue

    20. developing-compute-efficient

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

      Developing Compute-efficient, Quality Models with LS-PrePost® 3 on the TRACC Cluster Oct. 21-22, 2010 Argonne TRACC Dr. Cezary Bojanowski Dr. Ronald F. Kulak This email address is being protected from spambots. You need JavaScript enabled to view it. Announcement pdficon small The LS-PrePost Introductory Course was held October 21-22, 2010 at TRACC in West Chicago with interactive participation on-site as well as remotely via the Internet. Intended primarily for finite element analysts with

    1. Computing for Finance

      ScienceCinema (OSTI)

      None

      2011-10-06

      The finance sector is one of the driving forces for the use of distributed or Grid computing for business purposes. The speakers will review the state-of-the-art of high performance computing in the financial sector, and provide insight into how different types of Grid computing ? from local clusters to global networks - are being applied to financial applications. They will also describe the use of software and techniques from physics, such as Monte Carlo simulations, in the financial world. There will be four talks of 20min each. The talk abstracts and speaker bios are listed below. This will be followed by a Q&A; panel session with the speakers. From 19:00 onwards there will be a networking cocktail for audience and speakers. This is an EGEE / CERN openlab event organized in collaboration with the regional business network rezonance.ch. A webcast of the event will be made available for subsequent viewing, along with powerpoint material presented by the speakers. Attendance is free and open to all. Registration is mandatory via www.rezonance.ch, including for CERN staff. 1. Overview of High Performance Computing in the Financial Industry Michael Yoo, Managing Director, Head of the Technical Council, UBS Presentation will describe the key business challenges driving the need for HPC solutions, describe the means in which those challenges are being addressed within UBS (such as GRID) as well as the limitations of some of these solutions, and assess some of the newer HPC technologies which may also play a role in the Financial Industry in the future. Speaker Bio: Michael originally joined the former Swiss Bank Corporation in 1994 in New York as a developer on a large data warehouse project. In 1996 he left SBC and took a role with Fidelity Investments in Boston. Unable to stay away for long, he returned to SBC in 1997 while working for Perot Systems in Singapore. Finally, in 1998 he formally returned to UBS in Stamford following the merger with SBC and has remained with UBS for the past 9 years. During his tenure at UBS, he has had a number of leadership roles within IT in development, support and architecture. In 2006 Michael relocated to Switzerland to take up his current role as head of the UBS IB Technical Council, responsible for the overall technology strategy and vision of the Investment Bank. One of Michael's key responsibilities is to manage the UBS High Performance Computing Research Lab and he has been involved in a number of initiatives in the HPC space. 2. Grid in the Commercial WorldFred Gedling, Chief Technology Officer EMEA and Senior Vice President Global Services, DataSynapse Grid computing gets mentions in the press for community programs starting last decade with "Seti@Home". Government, national and supranational initiatives in grid receive some press. One of the IT-industries' best-kept secrets is the use of grid computing by commercial organizations with spectacular results. Grid Computing and its evolution into Application Virtualization is discussed and how this is key to the next generation data center. Speaker Bio: Fred Gedling holds the joint roles of Chief Technology Officer for EMEA and Senior Vice President of Global Services at DataSynapse, a global provider of application virtualisation software. Based in London and working closely with organisations seeking to optimise their IT infrastructures, Fred offers unique insights into the technology of virtualisation as well as the methodology of establishing ROI and rapid deployment to the immediate advantage of the business. Fred has more than fifteen years experience of enterprise middleware and high-performance infrastructures. Prior to DataSynapse he worked in high performance CRM middleware and was the CTO EMEA for New Era of Networks (NEON) during the rapid growth of Enterprise Application Integration. His 25-year career in technology also includes management positions at Goldman Sachs and Stratus Computer. Fred holds a First Class Bsc (Hons) degree in Physics with Astrophysics from the University of Leeds and had the privilege o

    2. Computer generated holographic microtags

      DOE Patents [OSTI]

      Sweatt, William C.

      1998-01-01

      A microlithographic tag comprising an array of individual computer generated holographic patches having feature sizes between 250 and 75 nanometers. The tag is a composite hologram made up of the individual holographic patches and contains identifying information when read out with a laser of the proper wavelength and at the proper angles of probing and reading. The patches are fabricated in a steep angle Littrow readout geometry to maximize returns in the -1 diffracted order. The tags are useful as anti-counterfeiting markers because of the extreme difficulty in reproducing them.

    3. Computer generated holographic microtags

      DOE Patents [OSTI]

      Sweatt, W.C.

      1998-03-17

      A microlithographic tag comprising an array of individual computer generated holographic patches having feature sizes between 250 and 75 nanometers is disclosed. The tag is a composite hologram made up of the individual holographic patches and contains identifying information when read out with a laser of the proper wavelength and at the proper angles of probing and reading. The patches are fabricated in a steep angle Littrow readout geometry to maximize returns in the -1 diffracted order. The tags are useful as anti-counterfeiting markers because of the extreme difficulty in reproducing them. 5 figs.

    4. Scanning computed confocal imager

      DOE Patents [OSTI]

      George, John S. (Los Alamos, NM)

      2000-03-14

      There is provided a confocal imager comprising a light source emitting a light, with a light modulator in optical communication with the light source for varying the spatial and temporal pattern of the light. A beam splitter receives the scanned light and direct the scanned light onto a target and pass light reflected from the target to a video capturing device for receiving the reflected light and transferring a digital image of the reflected light to a computer for creating a virtual aperture and outputting the digital image. In a transmissive mode of operation the invention omits the beam splitter means and captures light passed through the target.

    5. Collecting Personally Identifiable Information Through the Web and User

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

      Research | Department of Energy Federal Requirements » Collecting Personally Identifiable Information Through the Web and User Research Collecting Personally Identifiable Information Through the Web and User Research The Office of Energy Efficiency and Renewable Energy (EERE) has requirements for websites, applications, customer surveys, and user experience (UX) research that collect data on individuals-also called personally identifiable information (PII). The U.S. Department of Energy

    6. Idaho Cleanup Project Clearance Limits for Personal Property | Department

      Office of Environmental Management (EM)

      of Energy Idaho Cleanup Project Clearance Limits for Personal Property Idaho Cleanup Project Clearance Limits for Personal Property Kevin Konzen*, CH2M-WG Idaho, LLC ; Craig Nesshoefer, Idaho Cleanup Project Abstract: CH2M-WG Idaho, LLC (CWI) had sought alternative surface clearance limits for personal property from those referenced in DOE Order 458.1, which were approved September 2013 by the Department of Energy. Because much of the property would remain within DOE control, implementation

    7. Introduction to High Performance Computing

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

      Introduction to High Performance Computing Introduction to High Performance Computing June 10, 2013 Photo on 7 30 12 at 7.10 AM Downloads Download File Gerber-HPC-2.pdf...

    8. Computer Wallpaper | The Ames Laboratory

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

      Computer Wallpaper We've incorporated the tagline, Creating Materials and Energy Solutions, into a computer wallpaper so you can display it on your desktop as a constant reminder....

    9. 2015 Final Reports from the Los Alamos National Laboratory Computational Physics Student Summer Workshop

      SciTech Connect (OSTI)

      Runnels, Scott Robert; Caldwell, Wendy; Brown, Barton Jed; Pederson, Clark; Brown, Justin; Burrill, Daniel; Feinblum, David; Hyde, David; Levick, Nathan; Lyngaas, Isaac; Maeng, Brad; Reed, Richard LeRoy; Sarno-Smith, Lois; Shohet, Gil; Skarda, Jinhie; Stevens, Josey; Zeppetello, Lucas; Grossman-Ponemon, Benjamin; Bottini, Joseph Larkin; Loudon, Tyson Shane; VanGessel, Francis Gilbert; Nagaraj, Sriram; Price, Jacob

      2015-10-15

      The two primary purposes of LANLs Computational Physics Student Summer Workshop are (1) To educate graduate and exceptional undergraduate students in the challenges and applications of computational physics of interest to LANL, and (2) Entice their interest toward those challenges. Computational physics is emerging as a discipline in its own right, combining expertise in mathematics, physics, and computer science. The mathematical aspects focus on numerical methods for solving equations on the computer as well as developing test problems with analytical solutions. The physics aspects are very broad, ranging from low-temperature material modeling to extremely high temperature plasma physics, radiation transport and neutron transport. The computer science issues are concerned with matching numerical algorithms to emerging architectures and maintaining the quality of extremely large codes built to perform multi-physics calculations. Although graduate programs associated with computational physics are emerging, it is apparent that the pool of U.S. citizens in this multi-disciplinary field is relatively small and is typically not focused on the aspects that are of primary interest to LANL. Furthermore, more structured foundations for LANL interaction with universities in computational physics is needed; historically interactions rely heavily on individuals personalities and personal contacts. Thus a tertiary purpose of the Summer Workshop is to build an educational network of LANL researchers, university professors, and emerging students to advance the field and LANLs involvement in it. This report includes both the background for the program and the reports from the students.

    10. Certain irregularities in the use of computer facilities at Sandia Laboratory

      SciTech Connect (OSTI)

      Not Available

      1980-10-22

      This report concerns irregularities in the use of computer systems at Sandia Laboratories (Sandia) in Albuquerque, New Mexico. Our interest in this subject was triggered when we learned late last year that the Federal Bureau of Investigation (FBI) was planning to undertake an investigation into possible misuse of the computer systems at Sandia. That investigation, which was carried out with the assistance of our staff, disclosed that an employee of Sandia was apparently using the Sandia computer system to assist in running a bookmaking operation for local gamblers. As a result of that investigation, we decided to conduct a separate review of Sandia's computer systems to determine the extent of computer misuse at Sandia. We found that over 200 employees of Sandia had stored games, personal items, classified material, and otherwise sensitive material on their computer files.

    11. Being personally invested makes the difference | Princeton Plasma...

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

      personally invested makes the difference By Gale Scott May 23, 2011 Tweet Widget Google Plus One Share on Facebook Arlene White. (Photo by Elle Starkman, PPPL Office of...

    12. A personal message from Rosemary Maestas-Swazo

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

      Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: Dec. 2015-Jan. 2016 all issues All Issues submit...

    13. Personal Commitment to Excellence in Health and Safety: A Message...

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

      programs and sites. Personal Commitment to Excellence in Safety and Health Poster Addthis Related Articles PHOTOS: Vice President Biden Swears in New Deputy Secretary of Energy ...

    14. Person County, North Carolina: Energy Resources | Open Energy...

      Open Energy Info (EERE)

      Person County, North Carolina: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 36.3528221, -78.9288242 Show Map Loading map......

    15. Environment/Health/Safety (EHS): Personal Protective Equipment...

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

      EHS Occupational Safety Safety Group Home Electrical Safety Ergonomics ISM Occupational Safety Group Organization Personal Protective Equipment (PPE) Injury Review & Analysis...

    16. Super recycled water: quenching computers

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

      Super recycled water: quenching computers Super recycled water: quenching computers New facility and methods support conserving water and creating recycled products. Using reverse osmosis to "super purify" water allows the system to reuse water and cool down our powerful yet thirsty computers. January 30, 2014 Super recycled water: quenching computers LANL's Sanitary Effluent Reclamation Facility, key to reducing the Lab's discharge of liquid. Millions of gallons of industrial

    17. Fermilab | Science at Fermilab | Computing

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

      Computing Computing is indispensable to science at Fermilab. High-energy physics experiments generate an astounding amount of data that physicists need to store, analyze and communicate with others. Cutting-edge technology allows scientists to work quickly and efficiently to advance our understanding of the world . Fermilab's Computing Division is recognized for its expertise in handling huge amounts of data, its success in high-speed parallel computing and its willingness to take its craft in

    18. History | Argonne Leadership Computing Facility

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

      Leadership Computing The Argonne Leadership Computing Facility (ALCF) was established at Argonne National Laboratory in 2004 as part of a U.S. Department of Energy (DOE) initiative dedicated to enabling leading-edge computational capabilities to advance fundamental discovery and understanding in a broad range of scientific and engineering disciplines. Supported by the Advanced Scientific Computing Research (ASCR) program within DOE's Office of Science, the ALCF is one half of the DOE Leadership

    19. Computing architecture for autonomous microgrids

      DOE Patents [OSTI]

      Goldsmith, Steven Y.

      2015-09-29

      A computing architecture that facilitates autonomously controlling operations of a microgrid is described herein. A microgrid network includes numerous computing devices that execute intelligent agents, each of which is assigned to a particular entity (load, source, storage device, or switch) in the microgrid. The intelligent agents can execute in accordance with predefined protocols to collectively perform computations that facilitate uninterrupted control of the microgrid.

    20. Computational and experimental techniques for coupled acoustic/structure

      Office of Scientific and Technical Information (OSTI)

      interactions. (Technical Report) | SciTech Connect Computational and experimental techniques for coupled acoustic/structure interactions. Citation Details In-Document Search Title: Computational and experimental techniques for coupled acoustic/structure interactions. This report documents the results obtained during a one-year Laboratory Directed Research and Development (LDRD) initiative aimed at investigating coupled structural acoustic interactions by means of algorithm development and

    1. A NEW METHOD FOR OBTAINING THE STAR FORMATION LAW IN GALAXIES

      SciTech Connect (OSTI)

      Heiner, Jonathan S.; Allen, Ronald J.; Van der Kruit, Pieter C.

      2010-08-20

      We present a new observational method to evaluate the exponent of the star formation law as initially formulated by Schmidt, i.e., the power-law expression assumed to relate the rate of star formation in a volume of space to the local total gas volume density present there. Total volume densities in the gas clouds surrounding an OB association are determined with a simple model which considers the atomic hydrogen as a photodissociation product on the cloud surfaces. The photodissociating photon flux incident on the cloud is computed from the far-UV luminosity of the OB association and the geometry. As an example, we have applied this 'PDR Method' to a sample of star-forming regions in M33 using Very Large Array (VLA) 21 cm data for the H I and Galaxy Evolution Explorer (GALEX) imagery in the far-UV. With these two observables, our approach provides an estimate of the total volume density of hydrogen (atomic + molecular) in the gas clouds surrounding the young star cluster. A graph in logarithmic coordinates of the cluster UV luminosity versus the total density in the surrounding gas provides a direct measure of the exponent of the star formation law. However, we show that this plot is severely affected by observational selection, which renders large areas of the diagram inaccessible to the data. An ordinary least-squares regression fit to a straight line, therefore, gives a strongly biased result. In the present case, the slope of such a fit primarily reflects the boundary defined when the 21 cm line becomes optically thick and is no longer a reliable measure of the H I column density. We use a maximum likelihood statistical approach which can deal with truncated and skewed data, and also takes account of the large uncertainties in the total gas densities which we derive. The exponent we obtain for the Schmidt law in M33 is 1.4 {+-} 0.2.

    2. Noise tolerant spatiotemporal chaos computing

      SciTech Connect (OSTI)

      Kia, Behnam; Kia, Sarvenaz; Ditto, William L.; Lindner, John F.; Sinha, Sudeshna

      2014-12-01

      We introduce and design a noise tolerant chaos computing system based on a coupled map lattice (CML) and the noise reduction capabilities inherent in coupled dynamical systems. The resulting spatiotemporal chaos computing system is more robust to noise than a single map chaos computing system. In this CML based approach to computing, under the coupled dynamics, the local noise from different nodes of the lattice diffuses across the lattice, and it attenuates each other's effects, resulting in a system with less noise content and a more robust chaos computing architecture.

    3. AMRITA -- A computational facility

      SciTech Connect (OSTI)

      Shepherd, J.E.; Quirk, J.J.

      1998-02-23

      Amrita is a software system for automating numerical investigations. The system is driven using its own powerful scripting language, Amrita, which facilitates both the composition and archiving of complete numerical investigations, as distinct from isolated computations. Once archived, an Amrita investigation can later be reproduced by any interested party, and not just the original investigator, for no cost other than the raw CPU time needed to parse the archived script. In fact, this entire lecture can be reconstructed in such a fashion. To do this, the script: constructs a number of shock-capturing schemes; runs a series of test problems, generates the plots shown; outputs the LATEX to typeset the notes; performs a myriad of behind-the-scenes tasks to glue everything together. Thus Amrita has all the characteristics of an operating system and should not be mistaken for a common-or-garden code.

    4. Computer memory management system

      DOE Patents [OSTI]

      Kirk, III, Whitson John

      2002-01-01

      A computer memory management system utilizing a memory structure system of "intelligent" pointers in which information related to the use status of the memory structure is designed into the pointer. Through this pointer system, The present invention provides essentially automatic memory management (often referred to as garbage collection) by allowing relationships between objects to have definite memory management behavior by use of coding protocol which describes when relationships should be maintained and when the relationships should be broken. In one aspect, the present invention system allows automatic breaking of strong links to facilitate object garbage collection, coupled with relationship adjectives which define deletion of associated objects. In another aspect, The present invention includes simple-to-use infinite undo/redo functionality in that it has the capability, through a simple function call, to undo all of the changes made to a data model since the previous `valid state` was noted.

    5. T-707: Apache Tomcat AJP Protocol Processing Bug Lets Remote Users Bypass Authentication or Obtain Information

      Broader source: Energy.gov [DOE]

      Apache Tomcat AJP protocol processing bug lets remote users bypass authentication or obtain information.

    6. Intro to computer programming, no computer required! | Argonne Leadership

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

      Computing Facility Intro to computer programming, no computer required! Author: Laura Wolf January 6, 2016 Facebook Twitter LinkedIn Google E-mail Printer-friendly version Pairing the volunteers with interested schools was the easy part. School administrators and teachers alike were delighted to have Argonne National Laboratory volunteers visit and help guide their Hour of Code activities last December. In all, Argonne's Educational Programs department helped place 44 volunteers in Chicago

    7. Other World Computing | Open Energy Information

      Open Energy Info (EERE)

      World Computing Jump to: navigation, search Name Other World Computing Facility Other World Computing Sector Wind energy Facility Type Community Wind Facility Status In Service...

    8. CLAMR (Compute Language Adaptive Mesh Refinement)

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

      CLAMR (Compute Language Adaptive Mesh Refinement) CLAMR (Compute Language Adaptive Mesh Refinement) CLAMR (Compute Language Adaptive Mesh Refinement) is being developed as a DOE...

    9. Computer_Vision

      Energy Science and Technology Software Center (OSTI)

      2002-10-04

      The Computer_Vision software performs object recognition using a novel multi-scale characterization and matching algorithm. To understand the multi-scale characterization and matching software, it is first necessary to understand some details of the Computer Vision (CV) Project. This project has focused on providing algorithms and software that provide an end-to-end toolset for image processing applications. At a high-level, this end-to-end toolset focuses on 7 coy steps. The first steps are geometric transformations. 1) Image Segmentation. Thismore » step essentially classifies pixels in foe input image as either being of interest or not of interest. We have also used GENIE segmentation output for this Image Segmentation step. 2 Contour Extraction (patent submitted). This takes the output of Step I and extracts contours for the blobs consisting of pixels of interest. 3) Constrained Delaunay Triangulation. This is a well-known geometric transformation that creates triangles inside the contours. 4 Chordal Axis Transform (CAT) . This patented geometric transformation takes the triangulation output from Step 3 and creates a concise and accurate structural representation of a contour. From the CAT, we create a linguistic string, with associated metrical information, that provides a detailed structural representation of a contour. 5.) Normalization. This takes an attributed linguistic string output from Step 4 and balances it. This ensures that the linguistic representation accurately represents the major sections of the contour. Steps 6 and 7 are implemented by the multi-scale characterization and matching software. 6) Multi scale Characterization. This takes as input the attributed linguistic string output from Normalization. Rules from a context free grammar are applied in reverse to create a tree-like representation for each contour. For example, one of the grammar’s rules is L -> (LL ). When an (LL) is seen in a string, a parent node is created that points to the four child symbols ‘(‘ , ‘L’ , ‘L’, and ‘)‘ . Levels in the tree can then be thought of as coarser (towards the root) or finer (towards the leaves) representations of the same contours. 7.) Multi scale Matching. Having a multi-scale characterization allows us to compare objects at a coarser level before matching at finer levels of detail. Matching at a coarser level not only increases the speed of the matching process (you’re comparing fewer symbols) , but also increases accuracy since small variations along contours do not significantly detract from two objects’ similarity.« less

    10. Computational Fluid Dynamics Library

      Energy Science and Technology Software Center (OSTI)

      2005-03-04

      CFDLib05 is the Los Alamos Computational Fluid Dynamics LIBrary. This is a collection of hydrocodes using a common data structure and a common numerical method, for problems ranging from single-field, incompressible flow, to multi-species, multi-field, compressible flow. The data structure is multi-block, with a so-called structured grid in each block. The numerical method is a Finite-Volume scheme employing a state vector that is fully cell-centered. This means that the integral form of the conservation lawsmore » is solved on the physical domain that is represented by a mesh of control volumes. The typical control volume is an arbitrary quadrilateral in 2D and an arbitrary hexahedron in 3D. The Finite-Volume scheme is for time-unsteady flow and remains well coupled by means of time and space centered fluxes; if a steady state solution is required, the problem is integrated forward in time until the user is satisfied that the state is stationary.« less

    11. SU-E-I-53: Variation in Measurements of Breast Skin Thickness Obtained Using Different Imaging Modalities

      SciTech Connect (OSTI)

      Nguyen, U; Kumaraswamy, N; Markey, M

      2014-06-01

      Purpose: To investigate variation in measurements of breast skin thickness obtained using different imaging modalities, including mammography, computed tomography (CT), ultrasound, and magnetic resonance imaging (MRI). Methods: Breast skin thicknesses as measured by mammography, CT, ultrasound, and MRI were compared. Mammographic measurements of skin thickness were obtained from published studies that utilized standard positioning (upright) and compression. CT measurements of skin thickness were obtained from a published study of a prototype breast CT scanner in which the women were in the prone position and the breast was uncompressed. Dermatological ultrasound exams of the breast skin were conducted at our institution, with the subjects in the upright position and the breast uncompressed. Breast skin thickness was calculated from breast MRI exams at our institution, with the patient in the prone position and the breast uncompressed. Results: T tests for independent samples demonstrated significant differences in the mean breast skin thickness as measured by different imaging modalities. Repeated measures ANOVA revealed significant differences in breast skin thickness across different quadrants of the breast for some modalities. Conclusion: The measurement of breast skin thickness is significantly different across different imaging modalities. Differences in the amount of compression and differences in patient positioning are possible reasons why measurements of breast skin thickness vary by modality.

    12. Bioinformatics Computing Consultant Position Available

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

      Bioinformatics Computing Consultant Position Available Bioinformatics Computing Consultant Position Available October 31, 2011 by Katie Antypas NERSC and the Joint Genome Institute (JGI) are searching for two individuals who can help biologists exploit advanced computing platforms. JGI provides production sequencing and genomics for the Department of Energy. These activities are critical to the DOE missions in areas related to clean energy generation and environmental characterization and

    13. Parallel Computing Summer Research Internship

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

      Parallel Computing Parallel Computing Summer Research Internship Creates next-generation leaders in HPC research and applications development Contacts Program Co-Lead Robert (Bob) Robey Email Program Co-Lead Gabriel Rockefeller Email Program Co-Lead Hai Ah Nam Email Professional Staff Assistant Nickole Aguilar Garcia (505) 665-3048 Email The Parallel Computing Summer Research Internship is an intense 10 week program aimed at providing students with a solid foundation in modern high performance

    14. computational-fluid-dynamics-training

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

      Table of Contents Date Location Advanced Hydraulic and Aerodynamic Analysis Using CFD March 27-28, 2013 Argonne TRACC Argonne, IL Computational Hydraulics and Aerodynamics using STAR-CCM+ for CFD Analysis March 21-22, 2012 Argonne TRACC Argonne, IL Computational Hydraulics and Aerodynamics using STAR-CCM+ for CFD Analysis March 30-31, 2011 Argonne TRACC Argonne, IL Computational Hydraulics for Transportation Workshop September 23-24, 2009 Argonne TRACC West Chicago, IL

    15. Careers | Argonne Leadership Computing Facility

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

      Careers at Argonne Looking for a unique opportunity to work at the forefront of high-performance computing? At the Argonne Leadership Computing Facility, we are helping to redefine what's possible in computational science. With some of the most powerful supercomputers in the world and a talented and diverse team of experts, we enable researchers to pursue groundbreaking discoveries that would otherwise not be possible. Check out our open positions below. For the most current listing of

    16. HeNCE: A Heterogeneous Network Computing Environment

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

      Beguelin, Adam; Dongarra, Jack J.; Geist, George Al; Manchek, Robert; Moore, Keith

      1994-01-01

      Network computing seeks to utilize the aggregate resources of many networked computers to solve a single problem. In so doing it is often possible to obtain supercomputer performance from an inexpensive local area network. The drawback is that network computing is complicated and error prone when done by hand, especially if the computers have different operating systems and data formats and are thus heterogeneous. The heterogeneous network computing environment (HeNCE) is an integrated graphical environment for creating and running parallel programs over a heterogeneous collection of computers. It is built on a lower level package called parallel virtual machine (PVM).more » The HeNCE philosophy of parallel programming is to have the programmer graphically specify the parallelism of a computation and to automate, as much as possible, the tasks of writing, compiling, executing, debugging, and tracing the network computation. Key to HeNCE is a graphical language based on directed graphs that describe the parallelism and data dependencies of an application. Nodes in the graphs represent conventional Fortran or C subroutines and the arcs represent data and control flow. This article describes the present state of HeNCE, its capabilities, limitations, and areas of future research.« less

    17. Bioinformatics Computing Consultant Position Available

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

      You can read more about the positions and apply at jobs.lbl.gov: Bioinformatics High Performance Computing Consultant (job number: 73194) and Software Developer for High...

    18. Parallel Computing Summer Research Internship

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

      should have basic experience with a scientific computing language, such as C, C++, Fortran and with the LINUX operating system. Duration & Location The program will last ten...

    19. Tukey | Argonne Leadership Computing Facility

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

      Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. Feedback Form Tukey The primary purpose of...

    20. Thrusts in High Performance Computing

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

      Exascale computers (1000x Hopper) in next decade: - Manycore processors using graphics, games, embedded cores, or other low power designs offer 100x in power efficiency -...

    1. Advanced Simulation and Computing Program

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

      The SSP mission is to analyze and predict the performance, safety, and reliability of nuclear weapons and certify their functionality. ASC works in partnership with computer ...

    2. Institutional computing (IC) information session

      SciTech Connect (OSTI)

      Koch, Kenneth R; Lally, Bryan R

      2011-01-19

      The LANL Institutional Computing Program (IC) will host an information session about the current state of unclassified Institutional Computing at Los Alamos, exciting plans for the future, and the current call for proposals for science and engineering projects requiring computing. Program representatives will give short presentations and field questions about the call for proposals and future planned machines, and discuss technical support available to existing and future projects. Los Alamos has started making a serious institutional investment in open computing available to our science projects, and that investment is expected to increase even more.

    3. U-017: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information

      Broader source: Energy.gov [DOE]

      A vulnerability was reported in HP MFP Digital Sending Software. A local user can obtain potentially sensitive information.

    4. Manufacturing Energy and Carbon Footprint - Sector: Computer...

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

      Computers, Electronics and Electrical Equipment (NAICS 334, 335) Process Energy ... Carbon Footprint Sector: Computers, Electronics and Electrical Equipment (NAICS 334, ...

    5. Numerical uncertainty in computational engineering and physics

      SciTech Connect (OSTI)

      Hemez, Francois M

      2009-01-01

      Obtaining a solution that approximates ordinary or partial differential equations on a computational mesh or grid does not necessarily mean that the solution is accurate or even 'correct'. Unfortunately assessing the quality of discrete solutions by questioning the role played by spatial and temporal discretizations generally comes as a distant third to test-analysis comparison and model calibration. This publication is contributed to raise awareness of the fact that discrete solutions introduce numerical uncertainty. This uncertainty may, in some cases, overwhelm in complexity and magnitude other sources of uncertainty that include experimental variability, parametric uncertainty and modeling assumptions. The concepts of consistency, convergence and truncation error are overviewed to explain the articulation between the exact solution of continuous equations, the solution of modified equations and discrete solutions computed by a code. The current state-of-the-practice of code and solution verification activities is discussed. An example in the discipline of hydro-dynamics illustrates the significant effect that meshing can have on the quality of code predictions. A simple method is proposed to derive bounds of solution uncertainty in cases where the exact solution of the continuous equations, or its modified equations, is unknown. It is argued that numerical uncertainty originating from mesh discretization should always be quantified and accounted for in the overall uncertainty 'budget' that supports decision-making for applications in computational physics and engineering.

    6. COMPUTATIONAL MODELING OF CIRCULATING FLUIDIZED BED REACTORS

      SciTech Connect (OSTI)

      Ibrahim, Essam A

      2013-01-09

      Details of numerical simulations of two-phase gas-solid turbulent flow in the riser section of Circulating Fluidized Bed Reactor (CFBR) using Computational Fluid Dynamics (CFD) technique are reported. Two CFBR riser configurations are considered and modeled. Each of these two riser models consist of inlet, exit, connecting elbows and a main pipe. Both riser configurations are cylindrical and have the same diameter but differ in their inlet lengths and main pipe height to enable investigation of riser geometrical scaling effects. In addition, two types of solid particles are exploited in the solid phase of the two-phase gas-solid riser flow simulations to study the influence of solid loading ratio on flow patterns. The gaseous phase in the two-phase flow is represented by standard atmospheric air. The CFD-based FLUENT software is employed to obtain steady state and transient solutions for flow modulations in the riser. The physical dimensions, types and numbers of computation meshes, and solution methodology utilized in the present work are stated. Flow parameters, such as static and dynamic pressure, species velocity, and volume fractions are monitored and analyzed. The differences in the computational results between the two models, under steady and transient conditions, are compared, contrasted, and discussed.

    7. User's manual for the ORIGEN2 computer code

      SciTech Connect (OSTI)

      Croff, A.G.

      1980-07-01

      This report describes how to use a revised version of the ORIGEN computer code, designated ORIGEN2. Included are a description of the input data, input deck organization, and sample input and output. ORIGEN2 can be obtained from the Radiation Shielding Information Center at ORNL.

    8. Computation Directorate 2008 Annual Report

      SciTech Connect (OSTI)

      Crawford, D L

      2009-03-25

      Whether a computer is simulating the aging and performance of a nuclear weapon, the folding of a protein, or the probability of rainfall over a particular mountain range, the necessary calculations can be enormous. Our computers help researchers answer these and other complex problems, and each new generation of system hardware and software widens the realm of possibilities. Building on Livermore's historical excellence and leadership in high-performance computing, Computation added more than 331 trillion floating-point operations per second (teraFLOPS) of power to LLNL's computer room floors in 2008. In addition, Livermore's next big supercomputer, Sequoia, advanced ever closer to its 2011-2012 delivery date, as architecture plans and the procurement contract were finalized. Hyperion, an advanced technology cluster test bed that teams Livermore with 10 industry leaders, made a big splash when it was announced during Michael Dell's keynote speech at the 2008 Supercomputing Conference. The Wall Street Journal touted Hyperion as a 'bright spot amid turmoil' in the computer industry. Computation continues to measure and improve the costs of operating LLNL's high-performance computing systems by moving hardware support in-house, by measuring causes of outages to apply resources asymmetrically, and by automating most of the account and access authorization and management processes. These improvements enable more dollars to go toward fielding the best supercomputers for science, while operating them at less cost and greater responsiveness to the customers.

    9. Ames Laboratory Personal Information Form | The Ames Laboratory

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

      Personal Information Form ATTENTION: Forms that reside in an employee's official personnel file (OPF) now have barcodes in the bottom right-hand corner. The most common forms are...

    10. Non-Residential Solar & Wind Tax Credit (Personal)

      Broader source: Energy.gov [DOE]

      The tax credit, which may be applied against corporate or personal taxes, is equal to 10% of the installed cost of qualified “solar energy devices” and applies to taxable years beginning January 1...

    11. NEW - DOE G 580.1-1A, Personal Property

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

      This Guide provides non-regulatory guidance and information to assist DOE organizations and contractors in implementing the DOE-wide and site-specific personal property management programs.

    12. Personal Commitment to Excellence in Safety and Health Poster

      Broader source: Energy.gov [DOE]

      Secretary Moniz and Deputy Secretary Sherwood-Randall signed their Personal Commitment to Excellence in Health and Safety. The memorandum was used to develop a poster that is being displayed throughout DOE facilities in Forrestal and Germantown.

    13. A personal message from Rosemary Maestas-Swazo

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

      Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit November is Native American Heritage Month, and we celebrate by dedicating ourselves to strong tribal communities A personal message from Rosemary Maestas-Swazo, Tribal Liaison, Los Alamos National Laboratory November 2, 2015 Rosemary Maestas-Swazo, Tribal Liaison Rosemary Maestas-Swazo, Tribal Liaison Contacts Community Programs

    14. Protecting FWP Participant Personally Identifiable Information/Protected

      Energy Savers [EERE]

      Health Information | Department of Energy Protecting FWP Participant Personally Identifiable Information/Protected Health Information Protecting FWP Participant Personally Identifiable Information/Protected Health Information The confidentiality and privacy rights of former workers are not only a legal requirement, they are crucial to establishing and maintaining credibility with the former worker community. All medical information that is collected as part of this program is treated as

    15. Making STEM Personal: Introducing the Women @ Energy Series | Department of

      Office of Environmental Management (EM)

      Energy STEM Personal: Introducing the Women @ Energy Series Making STEM Personal: Introducing the Women @ Energy Series March 18, 2013 - 11:53am Addthis Graphic by <a href="http://energy.gov/diversity/listings/women-energy">Sarah Gerrity</a>. Graphic by Sarah Gerrity. Dot Harris Dot Harris Director, Office of Economic Impact and Diversity Check Us Out on Pinterest Get inspired! Check out our Women @ Energy Pinboard . Occupations in Science, Technology, Engineering and

    16. Multicore Challenges and Benefits for High Performance Scientific Computing

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

      Nielsen, Ida M.B.; Janssen, Curtis L.

      2008-01-01

      Until recently, performance gains in processors were achieved largely by improvements in clock speeds and instruction level parallelism. Thus, applications could obtain performance increases with relatively minor changes by upgrading to the latest generation of computing hardware. Currently, however, processor performance improvements are realized by using multicore technology and hardware support for multiple threads within each core, and taking full advantage of this technology to improve the performance of applications requires exposure of extreme levels of software parallelism. We will here discuss the architecture of parallel computers constructed from many multicore chips as well as techniques for managing the complexitymore » of programming such computers, including the hybrid message-passing/multi-threading programming model. We will illustrate these ideas with a hybrid distributed memory matrix multiply and a quantum chemistry algorithm for energy computation using Møller–Plesset perturbation theory.« less

    17. Fact #778: May 6, 2013 Vehicles per Thousand Persons Rising Quickly...

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

      Persons Rising Quickly in China and India Fact 778: May 6, 2013 Vehicles per Thousand Persons Rising Quickly in China and India The number of vehicles per thousand persons ...

    18. Oak Ridge National Laboratory - Computing and Computational Sciences

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

      Directorate Oak Ridge to acquire next generation supercomputer Oak Ridge to acquire next generation supercomputer The U.S. Department of Energy's (DOE) Oak Ridge Leadership Computing Facility (OLCF) has signed a contract with IBM to bring a next-generation supercomputer to Oak Ridge National Laboratory (ORNL). The OLCF's new hybrid CPU/GPU computing system, Summit, will be delivered in 2017. (more) Links Department of Energy Consortium for Advanced Simulation of Light Water Reactors Extreme

    19. Introduction to computers: Reference guide

      SciTech Connect (OSTI)

      Ligon, F.V.

      1995-04-01

      The ``Introduction to Computers`` program establishes formal partnerships with local school districts and community-based organizations, introduces computer literacy to precollege students and their parents, and encourages students to pursue Scientific, Mathematical, Engineering, and Technical careers (SET). Hands-on assignments are given in each class, reinforcing the lesson taught. In addition, the program is designed to broaden the knowledge base of teachers in scientific/technical concepts, and Brookhaven National Laboratory continues to act as a liaison, offering educational outreach to diverse community organizations and groups. This manual contains the teacher`s lesson plans and the student documentation to this introduction to computer course.

    20. Power throttling of collections of computing elements

      DOE Patents [OSTI]

      Bellofatto, Ralph E. (Ridgefield, CT); Coteus, Paul W. (Yorktown Heights, NY); Crumley, Paul G. (Yorktown Heights, NY); Gara, Alan G. (Mount Kidsco, NY); Giampapa, Mark E. (Irvington, NY); Gooding; Thomas M. (Rochester, MN); Haring, Rudolf A. (Cortlandt Manor, NY); Megerian, Mark G. (Rochester, MN); Ohmacht, Martin (Yorktown Heights, NY); Reed, Don D. (Mantorville, MN); Swetz, Richard A. (Mahopac, NY); Takken, Todd (Brewster, NY)

      2011-08-16

      An apparatus and method for controlling power usage in a computer includes a plurality of computers communicating with a local control device, and a power source supplying power to the local control device and the computer. A plurality of sensors communicate with the computer for ascertaining power usage of the computer, and a system control device communicates with the computer for controlling power usage of the computer.

    1. Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition

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

      Executive's Input | Department of Energy 4 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Attached is Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input. Questions concerning this policy flash should be directed to Michael Righi of the Contract and Financial Assistance Policy Division, Office of Policy, Office Acquisition and Project

    2. U-053: Linux kexec Bugs Let Local and Remote Users Obtain Potentially

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

      Sensitive Information | Department of Energy 53: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information U-053: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information December 7, 2011 - 7:30am Addthis PROBLEM: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information . PLATFORM: Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat

    3. Quantum Computing: Solving Complex Problems

      ScienceCinema (OSTI)

      DiVincenzo, David [IBM Watson Research Center

      2009-09-01

      One of the motivating ideas of quantum computation was that there could be a new kind of machine that would solve hard problems in quantum mechanics. There has been significant progress towards the experimental realization of these machines (which I will review), but there are still many questions about how such a machine could solve computational problems of interest in quantum physics. New categorizations of the complexity of computational problems have now been invented to describe quantum simulation. The bad news is that some of these problems are believed to be intractable even on a quantum computer, falling into a quantum analog of the NP class. The good news is that there are many other new classifications of tractability that may apply to several situations of physical interest.

    4. Computing at SSRL Home Page

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

      contents you are looking for have moved. You will be redirected to the new location automatically in 5 seconds. Please bookmark the correct page at http://www-ssrl.slac.stanford.edu/content/staff-resources/computer-networking-group

    5. Events | Argonne Leadership Computing Facility

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

      2:00 PM Finding Multiple Local Minima of Computationally Expensive Simulations Jeffery Larson Postdoctoral Appointee, MCS Building 240Room 4301 Pages 1 2 3 4 5 6 7 8 9 ... next...

    6. Present and Future Computing Requirements

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

      Cosmology SciDAC-3 Project Ann Almgren (LBNL) Nick Gnedin (FNAL) Dave Higdon (LANL) Rob Ross (ANL) Martin White (UC Berkeley LBNL) Large Scale Production Computing and Storage...

    7. Computer Assisted Virtual Environment - CAVE

      ScienceCinema (OSTI)

      Erickson, Phillip; Podgorney, Robert; Weingartner, Shawn; Whiting, Eric

      2014-06-09

      Research at the Center for Advanced Energy Studies is taking on another dimension with a 3-D device known as a Computer Assisted Virtual Environment. The CAVE uses projection to display high-end computer graphics on three walls and the floor. By wearing 3-D glasses to create depth perception and holding a wand to move and rotate images, users can delve into data.

    8. Secure computing for the 'Everyman'

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

      Secure computing for the 'Everyman' Secure computing for the 'Everyman' If implemented on a wide scale, quantum key distribution technology could ensure truly secure commerce, banking, communications and data transfer. September 2, 2014 This small device developed at Los Alamos National Laboratory uses the truly random spin of light particles as defined by laws of quantum mechanics to generate a random number for use in a cryptographic key that can be used to securely transmit information

    9. computational-hydraulics-for-transportation

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

      Transportation Workshop Sept. 23-24, 2009 Argonne TRACC Dr. Steven Lottes This email address is being protected from spambots. You need JavaScript enabled to view it. Announcement pdficon small The Transportation Research and Analysis Computing Center at Argonne National Laboratory will hold a workshop on the use of computational hydraulics for transportation applications. The goals of the workshop are: Bring together people who are using or would benefit from the use of high performance cluster

    10. Computational Sciences and Engineering Division

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

      If you have questions or comments regarding any of our research and development activities, how to work with ORNL and the Computational Sciences and Engineering (CSE) Division, or the content of this website please contact one of the following people: If you have questions regarding CSE technologies and capabilities, job opportunities, working with ORNL and the CSE Division, intellectual property, etc., contact, Shaun S. Gleason, Ph.D. Division Director, Computational Sciences and Engineering

    11. Computational Sciences and Engineering Division

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

      The Computational Sciences and Engineering Division is a major research division at the Department of Energy's Oak Ridge National Laboratory. CSED develops and applies creative information technology and modeling and simulation research solutions for National Security and National Energy Infrastructure needs. The mission of the Computational Sciences and Engineering Division is to enhance the country's capabilities in achieving important objectives in the areas of national defense, homeland

    12. Mira | Argonne Leadership Computing Facility

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

      Computing Resources Mira Cetus and Vesta Visualization Cluster Data and Networking Software JLSE Featured Videos Mira: Argonne's 10-Petaflop Supercomputer Mira's Dedication Ceremony Introducing Mira: Our Next-Generation Supercomputer Mira Mira Ushers in a New Era of Scientific Supercomputing As one of the fastest supercomputers, Mira, our 10-petaflops IBM Blue Gene/Q system, is capable of 10 quadrillion calculations per second. With this computing power, Mira can do in one day what it would take

    13. Cooley | Argonne Leadership Computing Facility

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

      Changes from Tukey to Cooley Compiling and Linking Using Cobalt on Cooley Visit on Cooley Paraview on Cooley ParaView Tutorial VNC on Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Cooley The primary purpose of Cooley is to analyze and visualize data produced on Mira. Equipped with state-of-the-art graphics processing units (GPUs), Cooley converts computational data from Mira

    14. LAMMPS | Argonne Leadership Computing Facility

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

      Software & Libraries Boost CPMD Code_Saturne GAMESS GPAW GROMACS LAMMPS MADNESS QBox IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] LAMMPS Overview LAMMPS is a general-purpose molecular dynamics software package for massively parallel computers. It is written in an exceptionally clean style that makes it one of the most popular codes for users to extend and

    15. Automatic computation of transfer functions

      DOE Patents [OSTI]

      Atcitty, Stanley; Watson, Luke Dale

      2015-04-14

      Technologies pertaining to the automatic computation of transfer functions for a physical system are described herein. The physical system is one of an electrical system, a mechanical system, an electromechanical system, an electrochemical system, or an electromagnetic system. A netlist in the form of a matrix comprises data that is indicative of elements in the physical system, values for the elements in the physical system, and structure of the physical system. Transfer functions for the physical system are computed based upon the netlist.

    16. Proposal for grid computing for nuclear applications

      SciTech Connect (OSTI)

      Idris, Faridah Mohamad; Ismail, Saaidi; Haris, Mohd Fauzi B.; Sulaiman, Mohamad Safuan B.; Aslan, Mohd Dzul Aiman Bin.; Samsudin, Nursuliza Bt.; Ibrahim, Maizura Bt.; Ahmad, Megat Harun Al Rashid B. Megat; Yazid, Hafizal B.; Jamro, Rafhayudi B.; Azman, Azraf B.; Rahman, Anwar B. Abdul; Ibrahim, Mohd Rizal B. Mamat; Muhamad, Shalina Bt. Sheik; Hassan, Hasni; Abdullah, Wan Ahmad Tajuddin Wan; Ibrahim, Zainol Abidin; Zolkapli, Zukhaimira; Anuar, Afiq Aizuddin; Norjoharuddeen, Nurfikri; and others

      2014-02-12

      The use of computer clusters for computational sciences including computational physics is vital as it provides computing power to crunch big numbers at a faster rate. In compute intensive applications that requires high resolution such as Monte Carlo simulation, the use of computer clusters in a grid form that supplies computational power to any nodes within the grid that needs computing power, has now become a necessity. In this paper, we described how the clusters running on a specific application could use resources within the grid, to run the applications to speed up the computing process.

    17. Method and apparatus for obtaining enhanced production rate of thermal chemical reactions

      DOE Patents [OSTI]

      Tonkovich, Anna Lee Y.; Wang, Yong; Wegeng, Robert S.; Gao, Yufei

      2003-09-09

      Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and processes that utilize short contact times, high heat flux and low pressure drop are described. Improved methods of steam reforming are also provided.

    18. Method and apparatus for obtaining enhanced production rate of thermal chemical reactions

      DOE Patents [OSTI]

      Tonkovich, Anna Lee Y.; Wang, Yong; Wegeng, Robert S.; Gao, Yufei

      2006-05-16

      Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and processes that utilize short contact times, high heat flux and low pressure drop are described. Improved methods of steam reforming are also provided.

    19. An improved, computer-based, on-line gamma monitor for plutonium anion exchange process control

      SciTech Connect (OSTI)

      Pope, N.G.; Marsh, S.F.

      1987-06-01

      An improved, low-cost, computer-based system has replaced a previously developed on-line gamma monitor. Both instruments continuously profile uranium, plutonium, and americium in the nitrate anion exchange process used to recover and purify plutonium at the Los Alamos Plutonium Facility. The latest system incorporates a personal computer that provides full-feature multichannel analyzer (MCA) capabilities by means of a single-slot, plug-in integrated circuit board. In addition to controlling all MCA functions, the computer program continuously corrects for gain shift and performs all other data processing functions. This Plutonium Recovery Operations Gamma Ray Energy Spectrometer System (PROGRESS) provides on-line process operational data essential for efficient operation. By identifying abnormal conditions in real time, it allows operators to take corrective actions promptly. The decision-making capability of the computer will be of increasing value as we implement automated process-control functions in the future. 4 refs., 6 figs.

    20. Environmental Science Student Encouraged to Pursue Personal and Tribal

      Office of Environmental Management (EM)

      Goals During NREL Tour | Department of Energy Environmental Science Student Encouraged to Pursue Personal and Tribal Goals During NREL Tour Environmental Science Student Encouraged to Pursue Personal and Tribal Goals During NREL Tour November 21, 2013 - 3:06pm Addthis Reyna Banteah Reyna Banteah University of New Mexico Environmental Science Student and Member of the Zuni Pueblo Tribe Keshi (Hello), I'd like to start by saying e:lah'kwa (thank you) for the opportunity to visit the U.S.

    1. Computation Directorate 2007 Annual Report

      SciTech Connect (OSTI)

      Henson, V E; Guse, J A

      2008-03-06

      If there is a single word that both characterized 2007 and dominated the thoughts and actions of many Laboratory employees throughout the year, it is transition. Transition refers to the major shift that took place on October 1, when the University of California relinquished management responsibility for Lawrence Livermore National Laboratory (LLNL), and Lawrence Livermore National Security, LLC (LLNS), became the new Laboratory management contractor for the Department of Energy's (DOE's) National Nuclear Security Administration (NNSA). In the 55 years under the University of California, LLNL amassed an extraordinary record of significant accomplishments, clever inventions, and momentous contributions in the service of protecting the nation. This legacy provides the new organization with a built-in history, a tradition of excellence, and a solid set of core competencies from which to build the future. I am proud to note that in the nearly seven years I have had the privilege of leading the Computation Directorate, our talented and dedicated staff has made far-reaching contributions to the legacy and tradition we passed on to LLNS. Our place among the world's leaders in high-performance computing, algorithmic research and development, applications, and information technology (IT) services and support is solid. I am especially gratified to report that through all the transition turmoil, and it has been considerable, the Computation Directorate continues to produce remarkable achievements. Our most important asset--the talented, skilled, and creative people who work in Computation--has continued a long-standing Laboratory tradition of delivering cutting-edge science even in the face of adversity. The scope of those achievements is breathtaking, and in 2007, our accomplishments span an amazing range of topics. From making an important contribution to a Nobel Prize-winning effort to creating tools that can detect malicious codes embedded in commercial software; from expanding BlueGene/L, the world's most powerful computer, by 60% and using it to capture the most prestigious prize in the field of computing, to helping create an automated control system for the National Ignition Facility (NIF) that monitors and adjusts more than 60,000 control and diagnostic points; from creating a microarray probe that rapidly detects virulent high-threat organisms, natural or bioterrorist in origin, to replacing large numbers of physical computer servers with small numbers of virtual servers, reducing operating expense by 60%, the people in Computation have been at the center of weighty projects whose impacts are felt across the Laboratory and the DOE community. The accomplishments I just mentioned, and another two dozen or so, make up the stories contained in this report. While they form an exceptionally diverse set of projects and topics, it is what they have in common that excites me. They share the characteristic of being central, often crucial, to the mission-driven business of the Laboratory. Computational science has become fundamental to nearly every aspect of the Laboratory's approach to science and even to the conduct of administration. It is difficult to consider how we would proceed without computing, which occurs at all scales, from handheld and desktop computing to the systems controlling the instruments and mechanisms in the laboratories to the massively parallel supercomputers. The reasons for the dramatic increase in the importance of computing are manifest. Practical, fiscal, or political realities make the traditional approach to science, the cycle of theoretical analysis leading to experimental testing, leading to adjustment of theory, and so on, impossible, impractical, or forbidden. How, for example, can we understand the intricate relationship between human activity and weather and climate? We cannot test our hypotheses by experiment, which would require controlled use of the entire earth over centuries. It is only through extremely intricate, detailed computational simulation that we can test our theories, and simulati

    2. Snowmass Computing Frontier I2: Distributed

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

      Snowmass Computing Frontier I2: Distributed Computing and Facility Infrastructures Ken Bloom Richard Gerber July 31, 2013 Thursday, October 10, 13 Computing Frontier I2: Distributed Computing and Facility Infrastructures 7/31/13 Who we are ‣ Ken Bloom, Associate Professor, Department of Physics and Astronomy, University of Nebraska-Lincoln ‣ Co-PI for the Nebraska CMS Tier-2 computing facility ‣ Tier-2 program manager and Deputy Manager of Software and Computing for US CMS ‣ Tier-2

    3. Yuri Alexeev | Argonne Leadership Computing Facility

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

      Yuri Alexeev Assistant Computational Scientist Yury Alekseev Argonne National Laboratory 9700 South Cass Avenue Building 240 - Rm. 1126 Argonne IL, 60439 630-252-0157 yuri@alcf.anl.gov Yuri Alexeev is an Assistant Computational Scientist at the Argonne Leadership Computing Facility where he applies his skills, knowledge and experience for using and enabling computational methods in chemistry and biology for high-performance computing on next-generation high-performance computers. Yuri is

    4. Computer Science and Information Technology Student Pipeline

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

      Divisions recruit and hire promising undergraduate and graduate students in the areas of Computer Science, Information Technology, Management Information Systems, Computer...

    5. Applications for Postdoctoral Fellowship in Computational Science...

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

      at Berkeley Lab due November 26 October 15, 2012 by Francesca Verdier Researchers in computer science, applied mathematics or any computational science discipline who have...

    6. Sandia National Laboratories: Careers: Computer Science

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

      Computer Science Red Storm photo Sandia's supercomputing research is reaching for tomorrow's exascale performance while solving real-world problems today. Computer scientists and...

    7. Advanced Materials Development through Computational Design ...

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

      Development through Computational Design Advanced Materials Development through Computational Design Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research ...

    8. Thermoelectric Materials by Design, Computational Theory and...

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

      by Design, Computational Theory and Structure Thermoelectric Materials by Design, Computational Theory and Structure 2009 DOE Hydrogen Program and Vehicle Technologies Program...

    9. Extreme Scale Computing, Co-Design

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

      Information Science, Computing, Applied Math Extreme Scale Computing, Co-design Publications Publications Ramon Ravelo, Qi An, Timothy C. Germann, and Brad Lee Holian, ...

    10. Energy Storage Computational Tool | Open Energy Information

      Open Energy Info (EERE)

      Energy Storage Computational Tool Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Storage Computational Tool AgencyCompany Organization: Navigant Consulting...

    11. Integrated Computational Materials Engineering (ICME) for Mg...

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

      lm012li2012o.pdf More Documents & Publications Integrated Computational Materials Engineering (ICME) for Mg: International Pilot Project Integrated Computational Materials...

    12. Integrated Computational Materials Engineering (ICME) for Mg...

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

      lm012li2011o.pdf More Documents & Publications Integrated Computational Materials Engineering (ICME) for Mg: International Pilot Project Integrated Computational Materials...

    13. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing...

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

      based on molecular magnets that may make them suitable as qubits for quantum computers. Chemistry Aids Quantum Computing Quantum bits or qubits are the fundamental...

    14. Compare Activities by Number of Computers

      U.S. Energy Information Administration (EIA) Indexed Site

      of Computers Office buildings contained the most computers per square foot, followed by education and outpatient health care buildings. Education buildings were the only type...

    15. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing...

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

      Hybrid Rotaxanes: Interlocked Structures for Quantum Computing? Hybrid Rotaxanes: Interlocked Structures for Quantum Computing? Print Wednesday, 26 August 2009 00:00 Rotaxanes are...

    16. NERSC Enhances PDSF, Genepool Computing Capabilities

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

      Computing Capabilities NERSC Enhances PDSF, Genepool Computing Capabilities Linux cluster expansion speeds data access and analysis January 3, 2014 Christmas came early for...

    17. Solvate Structures and Computational/Spectroscopic Characterization...

      Office of Scientific and Technical Information (OSTI)

      Solvate Structures and ComputationalSpectroscopic Characterization of LiPF6 Electrolytes Citation Details In-Document Search Title: Solvate Structures and Computational...

    18. Solvate Structures and Computational/Spectroscopic Characterization...

      Office of Scientific and Technical Information (OSTI)

      Solvate Structures and ComputationalSpectroscopic Characterization of LiBF4 Electrolytes Citation Details In-Document Search Title: Solvate Structures and Computational...

    19. Improved computer models support genetics research

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

      February Simple computer models unravel genetic stress reactions in cells Simple computer models unravel genetic stress reactions in cells Integrated biological and...

    20. LANL computer model boosts engine efficiency

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

      LANL computer model boosts engine efficiency LANL computer model boosts engine efficiency The KIVA model has been instrumental in helping researchers and manufacturers understand...

    1. Sandia National Laboratories: Advanced Simulation Computing:...

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

      These collaborations help solve the challenges of developing computing platforms and simulation tools across a number of disciplines. Computer Science Research Institute The...

    2. Significant Enhancement of Computational Efficiency in Nonlinear Multiscale Battery Model for Computer Aided Engineering

      SciTech Connect (OSTI)

      Smith, Kandler; Graf, Peter; Jun, Myungsoo; Yang, Chuanbo; Li, Genong; Li, Shaoping; Hochman, Amit; Tselepidakis, Dimitrios

      2015-06-09

      This presentation provides an update on improvements in computational efficiency in a nonlinear multiscale battery model for computer aided engineering.

    3. T-652: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute Arbitrary Code

      Broader source: Energy.gov [DOE]

      Multiple vulnerabilities were reported in Mozilla Thunderbird. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can obtain cookies from another domain in certain cases.

    4. U-118: Adobe Flash Player Bugs Let Remote Users Execute Arbitrary Code and Obtain Information

      Broader source: Energy.gov [DOE]

      Two vulnerabilities were reported in Adobe Flash Player. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can obtain potentially information.

    5. Title 43 CFR 3204.5 How Can I Obtain a Noncompetitive Lease?...

      Open Energy Info (EERE)

      5 How Can I Obtain a Noncompetitive Lease? Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Federal RegulationFederal Regulation: Title 43 CFR...

    6. Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal

      Office of Scientific and Technical Information (OSTI)

      Emission Data (Technical Report) | SciTech Connect Technical Report: Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal Emission Data Citation Details In-Document Search Title: Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal Emission Data Over the past two decades, emissions of mercury, nonmercury metals, and acid gases from energy generation and chemical production have increasingly become an environmental concern. On February 16, 2012, the U.S.

    7. Argonne Lea Computing F A

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

      Lea Computing F A r g o n n e L e a d e r s h i p C o m p u t i n g FA c i l i t y 2 0 1 3 S c i e n c e H i g H l i g H t S Argonne leadership computing Facility C O N T E N T S About ALCF ...............................................................................................................................2 MirA...............................................................................................................................................3 SCienCe DireCtor'S MeSSAge

    8. Supporting collaborative computing and interaction

      SciTech Connect (OSTI)

      Agarwal, Deborah; McParland, Charles; Perry, Marcia

      2002-05-22

      To enable collaboration on the daily tasks involved in scientific research, collaborative frameworks should provide lightweight and ubiquitous components that support a wide variety of interaction modes. We envision a collaborative environment as one that provides a persistent space within which participants can locate each other, exchange synchronous and asynchronous messages, share documents and applications, share workflow, and hold videoconferences. We are developing the Pervasive Collaborative Computing Environment (PCCE) as such an environment. The PCCE will provide integrated tools to support shared computing and task control and monitoring. This paper describes the PCCE and the rationale for its design.

    9. Catalyst Working Group Kick-off Meeting: Personal Commentary

      Broader source: Energy.gov [DOE]

      Personal commentary on future directions in fuel cell electrocatalysis, presented by Mark Debe, 3M, at the kick-off meeting of the U.S. Department of Energy Fuel Cell Technologies Program's Catalysis Working Group, held May 14, 2012, in Arlington, Virginia.

    10. DRAFT - DOE G 580.1-1A, Personal Property

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

      This Guide provides non-regulatory guidance and information to assist DOE organizations and contractors in implementing the DOE-wide and site-specific personal property management programs. It supplements the policy, requirements, and responsibilities information contained in the DOE Order cited above and clarifies the regulatory requirements contained in the Federal Property Management Regulation (FMR) and specific contracts.

    11. Computing

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

      ... The Challenge is project-based learning geared to teaching a wide range of skills - 41615 A simulation of vortex induced motion shows how ocean currents affect offshore oil rigs. ...

    12. Computing

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

      This turbulent transport is caused by drift-wave instabilities, driven by free energy in plasma temperature and density gradients. * Unavoidable: These instabilities will persist ...

    13. Measurements and computations of room airflow with displacement ventilation

      SciTech Connect (OSTI)

      Yuan, X.; Chen, Q.; Glicksman, L.R.; Hu, Y.; Yang, X.

      1999-07-01

      This paper presents a set of detailed experimental data of room airflow with displacement ventilation. These data were obtained from a new environmental test facility. The measurements were conducted for three typical room configurations: a small office, a large office with partitions, and a classroom. The distributions of air velocity, air velocity fluctuation, and air temperature were measured by omnidirectional hot-sphere anemometers, and contaminant concentrations were measured by tracer gas at 54 points in the rooms. Smoke was used to observe airflow. The data also include the wall surface temperature distribution, air supply parameters, and the age of air at several locations in the rooms. A computational fluid dynamics (CFD) program with the Re-Normalization Group (RNG) {kappa}-{epsilon} model was also used to predict the indoor airflow. The agreement between the computed results and measured data of air temperature and velocity is good. However, some discrepancies exist in the computed and measured concentrations and velocity fluctuation.

    14. PERTURBATION APPROACH FOR QUANTUM COMPUTATION

      SciTech Connect (OSTI)

      G. P. BERMAN; D. I. KAMENEV; V. I. TSIFRINOVICH

      2001-04-01

      We discuss how to simulate errors in the implementation of simple quantum logic operations in a nuclear spin quantum computer with many qubits, using radio-frequency pulses. We verify our perturbation approach using the exact solutions for relatively small (L = 10) number of qubits.

    15. New challenges in computational biochemistry

      SciTech Connect (OSTI)

      Honig, B.

      1996-12-31

      The new challenges in computational biochemistry to which the title refers include the prediction of the relative binding free energy of different substrates to the same protein, conformational sampling, and other examples of theoretical predictions matching known protein structure and behavior.

    16. Radiological Worker Computer Based Training

      Energy Science and Technology Software Center (OSTI)

      2003-02-06

      Argonne National Laboratory has developed an interactive computer based training (CBT) version of the standardized DOE Radiological Worker training program. This CD-ROM based program utilizes graphics, animation, photographs, sound and video to train users in ten topical areas: radiological fundamentals, biological effects, dose limits, ALARA, personnel monitoring, controls and postings, emergency response, contamination controls, high radiation areas, and lessons learned.

    17. Experimental Mathematics and Computational Statistics

      SciTech Connect (OSTI)

      Bailey, David H.; Borwein, Jonathan M.

      2009-04-30

      The field of statistics has long been noted for techniques to detect patterns and regularities in numerical data. In this article we explore connections between statistics and the emerging field of 'experimental mathematics'. These includes both applications of experimental mathematics in statistics, as well as statistical methods applied to computational mathematics.

    18. Asynchronous broadcast for ordered delivery between compute nodes in a parallel computing system where packet header space is limited

      DOE Patents [OSTI]

      Kumar, Sameer

      2010-06-15

      Disclosed is a mechanism on receiving processors in a parallel computing system for providing order to data packets received from a broadcast call and to distinguish data packets received at nodes from several incoming asynchronous broadcast messages where header space is limited. In the present invention, processors at lower leafs of a tree do not need to obtain a broadcast message by directly accessing the data in a root processor's buffer. Instead, each subsequent intermediate node's rank id information is squeezed into the software header of packet headers. In turn, the entire broadcast message is not transferred from the root processor to each processor in a communicator but instead is replicated on several intermediate nodes which then replicated the message to nodes in lower leafs. Hence, the intermediate compute nodes become "virtual root compute nodes" for the purpose of replicating the broadcast message to lower levels of a tree.

    19. Computer Science and Information Technology Student Pipeline

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

      Science and Information Technology Student Pipeline Program Description Los Alamos National Laboratory's High Performance Computing and Information Technology Divisions recruit and hire promising undergraduate and graduate students in the areas of Computer Science, Information Technology, Management Information Systems, Computer Security, Software Engineering, Computer Engineering, and Electrical Engineering. Students are provided a mentor and challenging projects to demonstrate their

    20. Internode data communications in a parallel computer

      DOE Patents [OSTI]

      Archer, Charles J.; Blocksome, Michael A.; Miller, Douglas R.; Parker, Jeffrey J.; Ratterman, Joseph D.; Smith, Brian E.

      2013-09-03

      Internode data communications in a parallel computer that includes compute nodes that each include main memory and a messaging unit, the messaging unit including computer memory and coupling compute nodes for data communications, in which, for each compute node at compute node boot time: a messaging unit allocates, in the messaging unit's computer memory, a predefined number of message buffers, each message buffer associated with a process to be initialized on the compute node; receives, prior to initialization of a particular process on the compute node, a data communications message intended for the particular process; and stores the data communications message in the message buffer associated with the particular process. Upon initialization of the particular process, the process establishes a messaging buffer in main memory of the compute node and copies the data communications message from the message buffer of the messaging unit into the message buffer of main memory.

    1. Internode data communications in a parallel computer

      DOE Patents [OSTI]

      Archer, Charles J; Blocksome, Michael A; Miller, Douglas R; Parker, Jeffrey J; Ratterman, Joseph D; Smith, Brian E

      2014-02-11

      Internode data communications in a parallel computer that includes compute nodes that each include main memory and a messaging unit, the messaging unit including computer memory and coupling compute nodes for data communications, in which, for each compute node at compute node boot time: a messaging unit allocates, in the messaging unit's computer memory, a predefined number of message buffers, each message buffer associated with a process to be initialized on the compute node; receives, prior to initialization of a particular process on the compute node, a data communications message intended for the particular process; and stores the data communications message in the message buffer associated with the particular process. Upon initialization of the particular process, the process establishes a messaging buffer in main memory of the compute node and copies the data communications message from the message buffer of the messaging unit into the message buffer of main memory.

    2. Link failure detection in a parallel computer

      DOE Patents [OSTI]

      Archer, Charles J. (Rochester, MN); Blocksome, Michael A. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Smith, Brian E. (Rochester, MN)

      2010-11-09

      Methods, apparatus, and products are disclosed for link failure detection in a parallel computer including compute nodes connected in a rectangular mesh network, each pair of adjacent compute nodes in the rectangular mesh network connected together using a pair of links, that includes: assigning each compute node to either a first group or a second group such that adjacent compute nodes in the rectangular mesh network are assigned to different groups; sending, by each of the compute nodes assigned to the first group, a first test message to each adjacent compute node assigned to the second group; determining, by each of the compute nodes assigned to the second group, whether the first test message was received from each adjacent compute node assigned to the first group; and notifying a user, by each of the compute nodes assigned to the second group, whether the first test message was received.

    3. Broadcasting a message in a parallel computer

      DOE Patents [OSTI]

      Berg, Jeremy E. (Rochester, MN); Faraj, Ahmad A. (Rochester, MN)

      2011-08-02

      Methods, systems, and products are disclosed for broadcasting a message in a parallel computer. The parallel computer includes a plurality of compute nodes connected together using a data communications network. The data communications network optimized for point to point data communications and is characterized by at least two dimensions. The compute nodes are organized into at least one operational group of compute nodes for collective parallel operations of the parallel computer. One compute node of the operational group assigned to be a logical root. Broadcasting a message in a parallel computer includes: establishing a Hamiltonian path along all of the compute nodes in at least one plane of the data communications network and in the operational group; and broadcasting, by the logical root to the remaining compute nodes, the logical root's message along the established Hamiltonian path.

    4. Process For Cutting Polymers Electrolyte Multi-Layer Batteries And Batteries Obtained Thereby

      DOE Patents [OSTI]

      Gauthier, Michel (La Prairie, CA); Lessard, Ginette (Longueuil, CA); Dussault, Gaston (St-Benoit-de-Mirabel, CA); Rouillard, Roger (Beloeil, CA); Simoneau, Martin (Montreal, CA); Miller, Alan Paul (Woodbury, MN)

      2003-09-09

      A stacking of battery laminate is prepared, each battery consisting of anode, polymer electrolyte, cathode films and possibly an insulating film, under conditions suitable to constitute a rigid monoblock assembly, in which the films are unitary with one another. The assembly obtained is thereafter cut in predetermined shape by using a mechanical device without macroscopic deformation of the films constituting the assembly and without inducing permanent short circuits. The battery which is obtained after cutting includes at least one end which appears as a uniform cut, the various films constituting the assembly having undergone no macroscopic deformation, the edges of the films of the anode including an electronically insulating passivation film.

    5. Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal

      Office of Scientific and Technical Information (OSTI)

      Emission Data (Technical Report) | SciTech Connect Technical Report: Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal Emission Data Citation Details In-Document Search Title: Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal Emission Data × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit

    6. 2011 Computation Directorate Annual Report

      SciTech Connect (OSTI)

      Crawford, D L

      2012-04-11

      From its founding in 1952 until today, Lawrence Livermore National Laboratory (LLNL) has made significant strategic investments to develop high performance computing (HPC) and its application to national security and basic science. Now, 60 years later, the Computation Directorate and its myriad resources and capabilities have become a key enabler for LLNL programs and an integral part of the effort to support our nation's nuclear deterrent and, more broadly, national security. In addition, the technological innovation HPC makes possible is seen as vital to the nation's economic vitality. LLNL, along with other national laboratories, is working to make supercomputing capabilities and expertise available to industry to boost the nation's global competitiveness. LLNL is on the brink of an exciting milestone with the 2012 deployment of Sequoia, the National Nuclear Security Administration's (NNSA's) 20-petaFLOP/s resource that will apply uncertainty quantification to weapons science. Sequoia will bring LLNL's total computing power to more than 23 petaFLOP/s-all brought to bear on basic science and national security needs. The computing systems at LLNL provide game-changing capabilities. Sequoia and other next-generation platforms will enable predictive simulation in the coming decade and leverage industry trends, such as massively parallel and multicore processors, to run petascale applications. Efficient petascale computing necessitates refining accuracy in materials property data, improving models for known physical processes, identifying and then modeling for missing physics, quantifying uncertainty, and enhancing the performance of complex models and algorithms in macroscale simulation codes. Nearly 15 years ago, NNSA's Accelerated Strategic Computing Initiative (ASCI), now called the Advanced Simulation and Computing (ASC) Program, was the critical element needed to shift from test-based confidence to science-based confidence. Specifically, ASCI/ASC accelerated the development of simulation capabilities necessary to ensure confidence in the nuclear stockpile-far exceeding what might have been achieved in the absence of a focused initiative. While stockpile stewardship research pushed LLNL scientists to develop new computer codes, better simulation methods, and improved visualization technologies, this work also stimulated the exploration of HPC applications beyond the standard sponsor base. As LLNL advances to a petascale platform and pursues exascale computing (1,000 times faster than Sequoia), ASC will be paramount to achieving predictive simulation and uncertainty quantification. Predictive simulation and quantifying the uncertainty of numerical predictions where little-to-no data exists demands exascale computing and represents an expanding area of scientific research important not only to nuclear weapons, but to nuclear attribution, nuclear reactor design, and understanding global climate issues, among other fields. Aside from these lofty goals and challenges, computing at LLNL is anything but 'business as usual.' International competition in supercomputing is nothing new, but the HPC community is now operating in an expanded, more aggressive climate of global competitiveness. More countries understand how science and technology research and development are inextricably linked to economic prosperity, and they are aggressively pursuing ways to integrate HPC technologies into their native industrial and consumer products. In the interest of the nation's economic security and the science and technology that underpins it, LLNL is expanding its portfolio and forging new collaborations. We must ensure that HPC remains an asymmetric engine of innovation for the Laboratory and for the U.S. and, in doing so, protect our research and development dynamism and the prosperity it makes possible. One untapped area of opportunity LLNL is pursuing is to help U.S. industry understand how supercomputing can benefit their business. Industrial investment in HPC applications has historically been limited by the prohibitive cost of entry, the inaccessibility of software to run the powerful systems, and the years it takes to grow the expertise to develop codes and run them in an optimal way. LLNL is helping industry better compete in the global market place by providing access to some of the world's most powerful computing systems, the tools to run them, and the experts who are adept at using them. Our scientists are collaborating side by side with industrial partners to develop solutions to some of industry's toughest problems. The goal of the Livermore Valley Open Campus High Performance Computing Innovation Center is to allow American industry the opportunity to harness the power of supercomputing by leveraging the scientific and computational expertise at LLNL in order to gain a competitive advantage in the global economy.

    7. NERSC Enhances PDSF, Genepool Computing Capabilities

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

      Enhances PDSF, Genepool Computing Capabilities NERSC Enhances PDSF, Genepool Computing Capabilities Linux cluster expansion speeds data access and analysis January 3, 2014 Christmas came early for users of the Parallel Distributed Systems Facility (PDSF) and Genepool systems at Department of Energy's National Energy Research Scientific Computer Center (NERSC). Throughout November members of NERSC's Computational Systems Group were busy expanding the Linux computing resources that support PDSF's

    8. Extreme Scale Computing, Co-design

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

      Information Science, Computing, Applied Math » Extreme Scale Computing, Co-design Extreme Scale Computing, Co-design Computational co-design may facilitate revolutionary designs in the next generation of supercomputers. Get Expertise Tim Germann Physics and Chemistry of Materials Email Allen McPherson Energy and Infrastructure Analysis Email Turab Lookman Physics and Condensed Matter and Complex Systems Email Computational co-design involves developing the interacting components of a

    9. NERSC seeks Computational Systems Group Lead

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

      seeks Computational Systems Group Lead NERSC seeks Computational Systems Group Lead January 6, 2011 by Katie Antypas Note: This position is now closed. The Computational Systems Group provides production support and advanced development for the supercomputer systems at NERSC. Manage the Computational Systems Group (CSG) which provides production support and advanced development for the supercomputer systems at NERSC (National Energy Research Scientific Computing Center). These systems, which

    10. Presentation: High Performance Computing Applications | Department of

      Energy Savers [EERE]

      Energy High Performance Computing Applications Presentation: High Performance Computing Applications A briefing to the Secretary's Energy Advisory Board on High Performance Computing Applications delivered by Frederick H. Streitz, Lawrence Livermore National Laboratory. PDF icon High Performance Computing More Documents & Publications Presentation: QER Energy Topics 2011_INCITE_Fact_Sheets.pdf DOEs Effort to Reduce Truck Aerodynamic Drag through Joint Experiments and Computations

    11. Advanced Computing Tech Team | Department of Energy

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

      Advanced Computing Tech Team Advanced Computing Tech Team Advanced Computing Tech Team The Advanced Computing Tech Team is working with the DOE Energy Technology Offices, the Office of Science, and the National Nuclear Security Administration to deliver technologies that will be used to create new scientific insights into complex physical systems. Advanced computing technologies have been used for decades to provide better understanding of the performance and reliability of the nuclear stockpile

    12. Numerical computation of Pop plot

      SciTech Connect (OSTI)

      Menikoff, Ralph

      2015-03-23

      The Pop plot — distance-of-run to detonation versus initial shock pressure — is a key characterization of shock initiation in a heterogeneous explosive. Reactive burn models for high explosives (HE) must reproduce the experimental Pop plot to have any chance of accurately predicting shock initiation phenomena. This report describes a methodology for automating the computation of a Pop plot for a specific explosive with a given HE model. Illustrative examples of the computation are shown for PBX 9502 with three burn models (SURF, WSD and Forest Fire) utilizing the xRage code, which is the Eulerian ASC hydrocode at LANL. Comparison of the numerical and experimental Pop plot can be the basis for a validation test or as an aid in calibrating the burn rate of an HE model. Issues with calibration are discussed.

    13. Addressing failures in exascale computing

      SciTech Connect (OSTI)

      Snir, Marc; Wisniewski, Robert W.; Abraham, Jacob A.; Adve, Sarita; Bagchi, Saurabh; Balaji, Pavan; Belak, Jim; Bose, Pradip; Cappello, Franck; Carlson, William; Chien, Andrew A.; Coteus, Paul; Debardeleben, Nathan A.; Diniz, Pedro; Engelmann, Christian; Erez, Mattan; Saverio, Fazzari; Geist, Al; Gupta, Rinku; Johnson, Fred; Krishnamoorthy, Sriram; Leyffer, Sven; Liberty, Dean; Mitra, Subhasish; Munson, Todd; Schreiber, Robert; Stearly, Jon; Van Hensbergen, Eric

      2014-05-01

      We present here a report produced by a workshop on Addressing Failures in Exascale Computing held in Park City, Utah, August 411, 2012. The charter of this workshop was to establish a common taxonomy about resilience across all the levels in a computing system; discuss existing knowledge on resilience across the various hardware and software layers of an exascale system; and build on those results, examining potential solutions from both a hardware and software perspective and focusing on a combined approach. The workshop brought together participants with expertise in applications, system software, and hardware; they came from industry, government, and academia; and their interests ranged from theory to implementation. The combination allowed broad and comprehensive discussions and led to this document, which summarizes and builds on those discussions.

    14. gdb | Argonne Leadership Computing Facility

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

      Allinea DDT Core File Settings Determining Memory Use Using VNC with a Debugger bgq_stack gdb Coreprocessor Runjob termination TotalView Performance Tools & APIs Software & Libraries IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] gdb Using gdb Preliminaries You should prepare a debug version of your code: Compile using -O0 -g If you are using the XL

    15. Darshan | Argonne Leadership Computing Facility

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

      Performance Tools & APIs Tuning MPI on BG/Q Tuning and Analysis Utilities (TAU) HPCToolkit HPCTW mpiP gprof Profiling Tools Darshan PAPI BG/Q Performance Counters BGPM Openspeedshop Scalasca BG/Q DGEMM Performance Automatic Performance Collection (AutoPerf) Software & Libraries IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Darshan References Darshan

    16. GAMESS | Argonne Leadership Computing Facility

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

      Performance Tools & APIs Software & Libraries Boost CPMD Code_Saturne GAMESS GPAW GROMACS LAMMPS MADNESS QBox IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] GAMESS What Is GAMESS? The General Atomic and Molecular Electronic Structure System (GAMESS) is a general ab initio quantum chemistry package. For more information on GAMESS, see the Gordon research

    17. GROMACS | Argonne Leadership Computing Facility

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

      Software & Libraries Boost CPMD Code_Saturne GAMESS GPAW GROMACS LAMMPS MADNESS QBox IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] GROMACS Building and Running GROMACS on Vesta/Mira The Gromacs Molecular Dynamics package has a large number of executables. Some of them, such as luck, are just utilities that do not need to be built for the back end. Begin by

    18. Policies | Argonne Leadership Computing Facility

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

      Accounts Policy Account Sponsorship & Retention Policy ALCC Quarterly Report Policy ALCF Acknowledgment Policy Data Policy INCITE Quarterly Report Policy Job Scheduling Policy on BG/Q Job Scheduling Policies on Cooley Pullback Policy Refund Policy Software Policy User Authentication Policy Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Policies Official policies and procedures of the ALCF.

    19. Molecular Science Computing: 2010 Greenbook

      SciTech Connect (OSTI)

      De Jong, Wibe A.; Cowley, David E.; Dunning, Thom H.; Vorpagel, Erich R.

      2010-04-02

      This 2010 Greenbook outlines the science drivers for performing integrated computational environmental molecular research at EMSL and defines the next-generation HPC capabilities that must be developed at the MSC to address this critical research. The EMSL MSC Science Panel used EMSL’s vision and science focus and white papers from current and potential future EMSL scientific user communities to define the scientific direction and resulting HPC resource requirements presented in this 2010 Greenbook.

    20. Programs | Argonne Leadership Computing Facility

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

      INCITE Program ALCC Program Director's Discretionary (DD) Program Early Science Program INCITE 2016 Projects ALCC 2015 Projects ESP Projects View All Projects Publications ALCF Tech Reports Industry Collaborations Featured Science Snapshot of the global structure of a radiation-dominated accretion flow around a black hole computed using the Athena++ code Magnetohydrodynamic Models of Accretion Including Radiation Transport James Stone Allocation Program: INCITE Allocation Hours: 47 Million

    1. Projects | Argonne Leadership Computing Facility

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

      Projects bgclang Compiler Hal Finkel Cobalt Scheduler Bill Allcock, Paul Rich, Brian Toonen, Tom Uram GLEAN: Scalable In Situ Analysis and I/O Acceleration on Leadership Computing Systems Michael E. Papka, Venkat Vishwanath, Mark Hereld, Preeti Malakar, Joe Insley, Silvio Rizzi, Tom Uram Petrel: Data Management and Sharing Pilot Ian Foster, Michael E. Papka, Bill Allcock, Ben Allen, Rachana Ananthakrishnan, Lukasz Lacinski The Swift Parallel Scripting Language for ALCF Systems Michael Wilde,

    2. MADNESS | Argonne Leadership Computing Facility

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

      Software & Libraries Boost CPMD Code_Saturne GAMESS GPAW GROMACS LAMMPS MADNESS QBox IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] MADNESS Overview MADNESS is a numerical tool kit used to solve integral differential equations using multi-resolution analysis and a low-rank separation representation. MADNESS can solve multi-dimensional equations, currently up

    3. Michael Levitt and Computational Biology

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

      Michael Levitt and Computational Biology Resources with Additional Information * Publications Michael Levitt Courtesy of Linda A. Cicero / Stanford News Service Michael Levitt, PhD, professor of structural biology at the Stanford University School of Medicine, has won the 2013 Nobel Prize in Chemistry. ... Levitt ... shares the ... prize with Martin Karplus ... and Arieh Warshel ... "for the development of multiscale models for complex chemical systems." Levitt's work focuses on

    4. Allocations | Argonne Leadership Computing Facility

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

      Allocation Management Determining Allocation Requirements Querying Allocations Using cbank Mira/Cetus/Vesta Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Allocations ALCF resources are primarily used for DOE INCITE and ALCC awarded projects. Additional information on the INCITE program can be found on the DOE INCITE website and the ALCC program can be found on the Office of

    5. computation | National Nuclear Security Administration

      National Nuclear Security Administration (NNSA)

      computation | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog

    6. computers | National Nuclear Security Administration

      National Nuclear Security Administration (NNSA)

      computers | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog

    7. computing | National Nuclear Security Administration

      National Nuclear Security Administration (NNSA)

      computing | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog

    8. TRIDAC host computer functional specification

      SciTech Connect (OSTI)

      Hilbert, S.M.; Hunter, S.L.

      1983-08-23

      The purpose of this document is to outline the baseline functional requirements for the Triton Data Acquisition and Control (TRIDAC) Host Computer Subsystem. The requirements presented in this document are based upon systems that currently support both the SIS and the Uranium Separator Technology Groups in the AVLIS Program at the Lawrence Livermore National Laboratory and upon the specific demands associated with the extended safe operation of the SIS Triton Facility.

    9. Ames Laboratory Personal Information Form | The Ames Laboratory

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

      Personal Information Form ATTENTION: Forms that reside in an employee's official personnel file (OPF) now have barcodes in the bottom right-hand corner. The most common forms are the Personnel Requisitions, Change/Reappointment Requisition, AL-473 form, and Associateship form. The barcodes were placed on the forms for the Content Management system that Human Resources will implement to scan employee records. Effective immediately, if old versions of official personnel file (OPF) forms are

    10. REMS Program Policy for submitting of Personally Identifiable Information

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

      Program Policy for submitting of PII information Background: In August 2006, the Deputy Director of the Office of Security and Safety Performance Assurance issued a memorandum entitled "Protection of Electronic Data Containing Controlled Unclassified Information (CUI)". In November of 2006, DOE CIO issued Guidance CS-38A, "Protection of Sensitive Unclassified Information, including Personally Identifiable Information". These documents delineate controls necessary to protect

    11. Limited Personal Use of Government Office Equipment including Information Technology

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

      2005-01-07

      The Order establishes requirements and assigns responsibilities for employees' limited personal use of Government resources (office equipment and other resources including information technology) within DOE, including NNSA. The Order is required to provide guidance on appropriate and inappropriate uses of Government resources. This Order was certified 04/23/2009 as accurate and continues to be relevant and appropriate for use by the Department. Certified 4-23-09. No cancellation.

    12. Nuclear disarmament with a personal touch | National Nuclear Security

      National Nuclear Security Administration (NNSA)

      Administration disarmament with a personal touch | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for

    13. Towards Energy-Centric Computing and Computer Architecture

      SciTech Connect (OSTI)

      2011-02-09

      Technology forecasts indicate that device scaling will continue well into the next decade. Unfortunately, it is becoming extremely difficult to harness this increase in the number of transistorsinto performance due to a number of technological, circuit, architectural, methodological and programming challenges.In this talk, I will argue that the key emerging showstopper is power. Voltage scaling as a means to maintain a constant power envelope with an increase in transistor numbers is hitting diminishing returns. As such, to continue riding the Moore's law we need to look for drastic measures to cut power. This is definitely the case for server chips in future datacenters,where abundant server parallelism, redundancy and 3D chip integration are likely to remove programming, reliability and bandwidth hurdles, leaving power as the only true limiter.I will present results backing this argument based on validated models for future server chips and parameters extracted from real commercial workloads. Then I use these results to project future research directions for datacenter hardware and software.About the speakerBabak Falsafi is a Professor in the School of Computer and Communication Sciences at EPFL, and an Adjunct Professor of Electrical and Computer Engineering and Computer Science at Carnegie Mellon. He is thefounder and the director ofthe Parallel Systems Architecture Laboratory (PARSA) at EPFL where he conducts research onarchitectural support for parallel programming, resilient systems, architectures to break the memory wall, and analytic and simulation tools for computer system performance evaluation.In 1999, in collaboration with T. N. Vijaykumar he showed for the first time that, contrary to conventional wisdom,multiprocessors do not needrelaxed memory consistency models (and the resulting convoluted programming interfaces found and used in modern systems) to achieve high performance. He is a recipient of an NSF CAREER award in 2000, IBM Faculty Partnership Awards between 2001 and 2004, and an Alfred P. Sloan Research Fellowship in 2004. He is a senior member of IEEE and ACM.

    14. SPECKLE INTERFEROMETRY AT THE USNO FLAGSTAFF STATION: OBSERVATIONS OBTAINED IN 2008 AND NINE NEW ORBITS

      SciTech Connect (OSTI)

      Hartkopf, William I.; Mason, Brian D. E-mail: bdm@usno.navy.mil

      2011-08-15

      Results are presented for 299 speckle interferometric observations of double stars, obtained in 2008 at the USNO Flagstaff Station using the 1.55 m Kaj Strand Astrometric Reflector. Separations range from 0.''15 to 9.''88, with a median of 2.''22. This observing run concentrated on neglected systems, as well as systems in need of improved orbital elements; new orbital solutions have been determined for nine systems as a result.

    15. Electron beam method and apparatus for obtaining uniform discharges in electrically pumped gas lasers

      DOE Patents [OSTI]

      Fenstermacher, Charles A. (Los Alamos, NM); Boyer, Keith (Los Alamos, NM)

      1986-01-01

      A method and apparatus for obtaining uniform, high-energy, large-volume electrical discharges in the lasing medium of a gas laser whereby a high-energy electron beam is used as an external ionization source to ionize substantially the entire volume of the lasing medium which is then readily pumped by means of an applied potential less than the breakdown voltage of the medium. The method and apparatus are particularly useful in CO.sub.2 laser systems.

    16. Lab obtains approval to begin design on new radioactive waste staging

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

      facility New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings plus an operations center and a concrete pad for mobile waste characterization equipment. September 1, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience,

    17. Hydrodynamic equations for electrons in graphene obtained from the maximum entropy principle

      SciTech Connect (OSTI)

      Barletti, Luigi

      2014-08-15

      The maximum entropy principle is applied to the formal derivation of isothermal, Euler-like equations for semiclassical fermions (electrons and holes) in graphene. After proving general mathematical properties of the equations so obtained, their asymptotic form corresponding to significant physical regimes is investigated. In particular, the diffusive regime, the Maxwell-Boltzmann regime (high temperature), the collimation regime and the degenerate gas limit (vanishing temperature) are considered.

    18. Method for making graded I-III-VI.sub.2 semiconductors and solar cell obtained thereby

      DOE Patents [OSTI]

      Devaney, Walter E. (Seattle, WA)

      1987-08-04

      Improved cell photovoltaic conversion efficiencies are obtained by the simultaneous elemental reactive evaporation process of Mickelsen and Chen for making semiconductors by closer control of the evaporation rates and substrate temperature during formation of the near contact, bulk, and near junction regions of a graded I-III-VI.sub.2, thin film, semiconductor, such as CuInSe.sub.2 /(Zn,Cd)S or another I-III-VI.sub.2 /II-VI heterojunction.

    19. A fast route to obtain manganese spinel nanoparticles by reduction of K-birnessite

      SciTech Connect (OSTI)

      Giovannelli, F.; Chartier, T.; Autret-Lambert, C.; Delorme, F.; Zaghrioui, M.; Seron, A.

      2009-05-15

      The K-birnessite (K{sub x}MnO{sub 2}.yH{sub 2}O) reduction reaction has been tested in order to obtain manganese spinel nanoparticles. The addition of 0.25 weight percent of hydrazine hydrate, the reducing agent, during 24 hours is efficient to transform the birnessite powder in a hausmanite Mn{sub 3}O{sub 4} powder. Well crystallised square shape nanoparticles are obtained. Different birnessite precursors have been tested and the reaction kinetics is strongly correlated to the crystallinity and granulometry of the precursor. The effects of aging time and hydrazine hydrate amount have been studied. Well crystallised Mn{sub 3}O{sub 4} is obtained in one hour. The presence of feitknechtite (MnO(OH)) and amorphous nanorods has been detected as an intermediate phase during birnessite conversion into hausmanite. The conversion mechanism is discussed. - Graphical abstract: TEM image showing Mn{sub 3}O{sub 4} particle after treatment of birnessite with an addition of hydrazine during 24 hours.

    20. Two new frameworks of potassium saccharate obtained from acidic and alkaline solution

      SciTech Connect (OSTI)

      Lv, Yao-Kang; Feng, Yun-Long; Liu, Ji-Wei; Jiang, Zhan-Guo

      2011-05-15

      Two chiral K(I) complexes based on D-saccharic acid (H{sub 2}sac), [K(Hsac)]{sub n} (1) and [K{sub 2}(sac)]{sub n} (2) were obtained from acidic and alkaline solution. The 3D framework of 1 includes K(I) polyhedral rods and typical pairwise coaxial right- and left-handed helical chains, and displays binodal 6-connected pcu topology. 2 contains 2D polyhedral sheets consisting of left-handed helical chains, and generates 3D network with an unprecedented (7,11)-connected net. Cyclic voltammetry tests and charge-discharge tests indicate that the addition of complex 2 to the electrolyte could improve the electrochemical properties of the nickel hydroxide electrode. -- Graphical abstract: Two K(I) complexes based on D-saccharic acid (H{sub 2}sac), [K(Hsac)]{sub n} (1) and [K{sub 2}(sac)]{sub n} (2) were obtained and characterized. Electrochemical studies indicate the potential use of 2 in Ni-MH battery. Display Omitted highlights: > Two novel chiral K(I) frameworks based on D-saccharic acid were obtained. > The structure of 1 includes K(I) polyhedral rods and typical helical chains. > 2 contains 2D polyhedral sheets and generates an unprecedented (7,11)-connected net. > Addition of 2 to electrolyte could improve the nickel hydroxide electrode's property.

    1. Title 43 CFR 3214 Personal and Surety Bonds | Open Energy Information

      Open Energy Info (EERE)

      14 Personal and Surety Bonds Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Federal RegulationFederal Regulation: Title 43 CFR 3214 Personal and...

    2. U-114: IBM Personal Communications WS File Processing Buffer Overflow Vulnerability

      Broader source: Energy.gov [DOE]

      A vulnerability in WorkStation files (.ws) by IBM Personal Communications could allow a remote attacker to cause a denial of service (application crash) or potentially execute arbitrary code on vulnerable installations of IBM Personal Communications.

    3. U.S. Postal Service BlueEarth Program - Personal Electronics...

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

      U.S. Postal Service BlueEarth Program - Personal Electronics Recycling Program U.S. Postal Service BlueEarth Program - Personal Electronics Recycling Program June 26, 2015 - 1:02pm ...

    4. Toward Molecular Catalysts by Computer

      SciTech Connect (OSTI)

      Raugei, Simone; DuBois, Daniel L.; Rousseau, Roger J.; Chen, Shentan; Ho, Ming-Hsun; Bullock, R. Morris; Dupuis, Michel

      2015-02-17

      Rational design of molecular catalysts requires a systematic approach to designing ligands with specific functionality and precisely tailored electronic and steric properties. It then becomes possible to devise computer protocols to predict accurately the required properties and ultimately to design catalysts by computer. In this account we first review how thermodynamic properties such as oxidation-reduction potentials (E0), acidities (pKa), and hydride donor abilities (ΔGH-) form the basis for a systematic design of molecular catalysts for reactions that are critical for a secure energy future (hydrogen evolution and oxidation, oxygen and nitrogen reduction, and carbon dioxide reduction). We highlight how density functional theory allows us to determine and predict these properties within “chemical” accuracy (~ 0.06 eV for redox potentials, ~ 1 pKa unit for pKa values, and ~ 1.5 kcal/mol for hydricities). These quantities determine free energy maps and profiles associated with catalytic cycles, i.e. the relative energies of intermediates, and help us distinguish between desirable and high-energy pathways and mechanisms. Good catalysts have flat profiles that avoid high activation barriers due to low and high energy intermediates. We illustrate how the criterion of a flat energy profile lends itself to the prediction of design points by computer for optimum catalysts. This research was carried out in the Center for Molecular Electro-catalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory (PNNL) is operated for the DOE by Battelle.

    5. GPU COMPUTING FOR PARTICLE TRACKING

      SciTech Connect (OSTI)

      Nishimura, Hiroshi; Song, Kai; Muriki, Krishna; Sun, Changchun; James, Susan; Qin, Yong

      2011-03-25

      This is a feasibility study of using a modern Graphics Processing Unit (GPU) to parallelize the accelerator particle tracking code. To demonstrate the massive parallelization features provided by GPU computing, a simplified TracyGPU program is developed for dynamic aperture calculation. Performances, issues, and challenges from introducing GPU are also discussed. General purpose Computation on Graphics Processing Units (GPGPU) bring massive parallel computing capabilities to numerical calculation. However, the unique architecture of GPU requires a comprehensive understanding of the hardware and programming model to be able to well optimize existing applications. In the field of accelerator physics, the dynamic aperture calculation of a storage ring, which is often the most time consuming part of the accelerator modeling and simulation, can benefit from GPU due to its embarrassingly parallel feature, which fits well with the GPU programming model. In this paper, we use the Tesla C2050 GPU which consists of 14 multi-processois (MP) with 32 cores on each MP, therefore a total of 448 cores, to host thousands ot threads dynamically. Thread is a logical execution unit of the program on GPU. In the GPU programming model, threads are grouped into a collection of blocks Within each block, multiple threads share the same code, and up to 48 KB of shared memory. Multiple thread blocks form a grid, which is executed as a GPU kernel. A simplified code that is a subset of Tracy++ [2] is developed to demonstrate the possibility of using GPU to speed up the dynamic aperture calculation by having each thread track a particle.

    6. Controlling data transfers from an origin compute node to a target compute node

      DOE Patents [OSTI]

      Archer, Charles J. (Rochester, MN); Blocksome, Michael A. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

      2011-06-21

      Methods, apparatus, and products are disclosed for controlling data transfers from an origin compute node to a target compute node that include: receiving, by an application messaging module on the target compute node, an indication of a data transfer from an origin compute node to the target compute node; and administering, by the application messaging module on the target compute node, the data transfer using one or more messaging primitives of a system messaging module in dependence upon the indication.

    7. Briefing, For Persons With Access to UCNI - June 2014 | Department of

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

      Energy For Persons With Access to UCNI - June 2014 Briefing, For Persons With Access to UCNI - June 2014 June 2014 Briefing provides information on Unclassified Controlled Nuclear Information (UCNI) and for persons who have access to UCNI. PDF icon Briefing, For Persons With Access to UCNI - June 2014 More Documents & Publications Presentation, Marking OUO Documents - June 2014 Briefing, Reviewing Official's UCNI Training Briefing, DOE's Official Use Only Program

    8. Scott Runnels of Computational Physics

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

      Scott Runnels of Computational Physics to teach at West Point March 19, 2013 LOS ALAMOS, N. M., March 19, 2013- Under an agreement between Los Alamos National Laboratory and the U.S. Military Academy, Scott Runnels has been selected for a two-year faculty post in the Department of Physics and Nuclear Engineering at West Point. The teaching position is intended to strengthen the ties between the U.S. national laboratories and the U.S. military academies by bringing in a top scientist to teach at

    9. computational-hydaulics-march-30

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

      and Aerodynamics using STAR-CCM+ for CFD Analysis March 30-31, 2011 Argonne, Illinois Dr. Steven Lottes This email address is being protected from spambots. You need JavaScript enabled to view it. Announcement pdficon small A training course in the use of computational hydraulics and aerodynamics CFD software using CD-adapco's STAR-CCM+ for analysis was held at TRACC from March 30-31, 2011. The course assumes a basic knowledge of fluid mechanics and made extensive use of hands on tutorials.

    10. computational-structural-mechanics-training

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

      Table of Contents Date Location Training Course: HyperMesh and HyperView April 12-14, 2011 Argonne TRACC Argonne, IL Introductory Course: Developing Compute-efficient, Quality Models with LS-PrePost® 3 on the TRACC Cluster October 21-22, 2010 Argonne TRACC West Chicago, IL Modeling and Simulation with LS-DYNA®: Insights into Modeling with a Goal of Providing Credible Predictive Simulations February 11-12, 2010 Argonne TRACC West Chicago, IL Introductory Course: Using LS-OPT® on the TRACC

    11. An Arbitrary Precision Computation Package

      Energy Science and Technology Software Center (OSTI)

      2003-06-14

      This package permits a scientist to perform computations using an arbitrarily high level of numeric precision (the equivalent of hundreds or even thousands of digits), by making only minor changes to conventional C++ or Fortran-90 soruce code. This software takes advantage of certain properties of IEEE floating-point arithmetic, together with advanced numeric algorithms, custom data types and operator overloading. Also included in this package is the "Experimental Mathematician's Toolkit", which incorporates many of these facilitiesmore » into an easy-to-use interactive program.« less

    12. 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.

    13. Fermilab | Science | Particle Physics | Scientific Computing

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

      Today Fermilab serves as one of two US computing centers that processes and analyzes data from experiments at the Large Hadron Collider. The worldwide LHC computing project is one ...

    14. NERSC Intern Wins Award for Computing Achievement

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

      (NCWIT) Aspirations in Computing award on Saturday, March 16, 2013 in a ceremony in San Jose, CA. The award honors young women at the high school level for their computing-related...

    15. The Brain: Key To a Better Computer

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

      Brain: Key To a Better Computer - Sandia Energy Energy Search Icon Sandia Home Locations ... Twitter Google + Vimeo GovDelivery SlideShare The Brain: Key To a Better Computer Home...

    16. High Performance Computational Biology: A Distributed computing Perspective (2010 JGI/ANL HPC Workshop)

      ScienceCinema (OSTI)

      Konerding, David [Google, Inc

      2011-06-08

      David Konerding from Google, Inc. gives a presentation on "High Performance Computational Biology: A Distributed Computing Perspective" at the JGI/Argonne HPC Workshop on January 26, 2010.

    17. Significant Enhancement of Computational Efficiency in Nonlinear Multiscale Battery Model for Computer Aided Engineering (Presentation)

      SciTech Connect (OSTI)

      Kim, G.; Pesaran, A.; Smith, K.; Graf, P.; Jun, M.; Yang, C.; Li, G.; Li, S.; Hochman, A.; Tselepidakis, D.; White, J.

      2014-06-01

      This presentation discusses the significant enhancement of computational efficiency in nonlinear multiscale battery model for computer aided engineering in current research at NREL.

    18. Personal Property Retirement Work Order, HQ Form 1400.20 | Department of

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

      Energy Personal Property Retirement Work Order, HQ Form 1400.20 Personal Property Retirement Work Order, HQ Form 1400.20 Retirement Work Order PDF icon Personal Property Retirement Work Order, HQ Form 1400.20 More Documents & Publications DOE F 1400.20 DOE HQ F 580-2 DOE HQ F 580

    19. Using corresponding state theory to obtain intermolecular potentials to calculate pure liquid shock Hugoniots

      SciTech Connect (OSTI)

      Hobbs, M.L.

      1997-12-01

      Determination of product species, equations-of-state (EOS) and thermochemical properties of high explosives and pyrotechnics remains a major unsolved problem. Although, empirical EOS models may be calibrated to replicate detonation conditions within experimental variability (5--10%), different states, e.g. expansion, may produce significant discrepancy with data if the basic form of the EOS model is incorrect. A more physically realistic EOS model based on intermolecular potentials, such as the Jacobs Cowperthwaite Zwisler (JCZ3) EOS, is needed to predict detonation states as well as expanded states. Predictive capability for any EOS requires a large species data base composed of a wide variety of elements. Unfortunately, only 20 species have known JCZ3 molecular force constants. Of these 20 species, only 10 have been adequately compared to experimental data such as molecular scattering or shock Hugoniot data. Since data in the strongly repulsive region of the molecular potential is limited, alternative methods must be found to deduce force constants for a larger number of species. The objective of the present study is to determine JCZ3 product species force constants by using a corresponding states theory. Intermolecular potential parameters were obtained for a variety of gas species using a simple corresponding states technique with critical volume and critical temperature. A more complex, four parameter corresponding state method with shape and polarity corrections was also used to obtain intermolecular potential parameters. Both corresponding state methods were used to predict shock Hugoniot data obtained from pure liquids. The simple corresponding state method is shown to give adequate agreement with shock Hugoniot data.

    20. NERSC Intern Wins Award for Computing Achievement

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

      Intern Wins Award for Computing Achievement NERSC Intern Wins Award for Computing Achievement March 27, 2013 Linda Vu, lvu@lbl.gov, +1 510 495 2402 ncwit1 Stephanie Cabanela, a student intern in the National Energy Research Scientific Computing Center's (NERSC) Operation Technologies Group was honored with the Bay Area Affiliate National Center for Women and Information Technology (NCWIT) Aspirations in Computing award on Saturday, March 16, 2013 in a ceremony in San Jose, CA. The award honors

    1. Validating Computer-Designed Proteins for Vaccines

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

      Validating Computer-Designed Proteins for Vaccines Validating Computer-Designed Proteins for Vaccines Print Thursday, 21 August 2014 12:05 In the struggle to keep up with microbes whose rapid mutations outpace our ability to produce vaccines, the human race has a powerful ally: computers. Researchers have now figured out a way to use computational protein design to generate small, stable proteins that accurately mimic key viral structures; these can then be used in vaccines to induce potent

    2. Future Computing Needs for Innovative Confinement Concepts

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

      of Plasma Science and Innovation Center Current Computing Utilization and Resources Near Term Needs Concluding Comments Future Computing Needs for Innovative Confinement Concepts Charlson C. Kim charlson@aa.washington.edu Plasma Science and Innovation Center University of Washington, Seattle August 3, 2010 Large Scale Computing Needs for Fusion Energy Science Workshop Rockville, MD Charlson C. Kim, PSI-Center Future Computing Needs of ICC's Introduction of Plasma Science and Innovation Center

    3. Computers and Monitors | The Ames Laboratory

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

      Computers and Monitors Buying a Computer or Monitor If you have a need to purchase a computer and/or monitor, follow this How To Guide to search the registry for EPEAT products. On your purchase requisition, indicate whether or not the item is EPEAT registered. *Acceptable Justifications/exceptions will be rare for computer or monitor through the Ames Laboratory storeroom. Both items offered through the storeroom are registered as EPEAT Gold* Office Electronics - look for ENERGY STAR and

    4. NERSC National Energy Research Scientific Computing Center

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

      National Energy Research Scientific Computing Center 2007 Annual Report National Energy Research Scientific Computing Center 2007 Annual Report Ernest Orlando Lawrence Berkeley National Laboratory 1 Cyclotron Road, Berkeley, CA 94720-8148 This work was supported by the Director, Office of Science, Office of Ad- vanced Scientific Computing Research of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. LBNL-1143E, October 2008 iii National Energy Research Scientific Computing

    5. National Energ y Research Scientific Computing Center

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

      Annual Report This work was supported by the Director, Office of Science, Office of Advanced Scientific Computing Research of the U.S. Department of Energy under Contract No. DE-AC 03-76SF00098. LBNL-49186, December 2001 National Energ y Research Scientific Computing Center 2001 Annual Report NERSC aspires to be a world leader in accelerating scientific discovery through computation. Our vision is to provide high- performance computing tools to tackle science's biggest and most challenging

    6. VISTA - computational tools for comparative genomics

      SciTech Connect (OSTI)

      Frazer, Kelly A.; Pachter, Lior; Poliakov, Alexander; Rubin,Edward M.; Dubchak, Inna

      2004-01-01

      Comparison of DNA sequences from different species is a fundamental method for identifying functional elements in genomes. Here we describe the VISTA family of tools created to assist biologists in carrying out this task. Our first VISTA server at http://www-gsd.lbl.gov/VISTA/ was launched in the summer of 2000 and was designed to align long genomic sequences and visualize these alignments with associated functional annotations. Currently the VISTA site includes multiple comparative genomics tools and provides users with rich capabilities to browse pre-computed whole-genome alignments of large vertebrate genomes and other groups of organisms with VISTA Browser, submit their own sequences of interest to several VISTA servers for various types of comparative analysis, and obtain detailed comparative analysis results for a set of cardiovascular genes. We illustrate capabilities of the VISTA site by the analysis of a 180 kilobase (kb) interval on human chromosome 5 that encodes for the kinesin family member3A (KIF3A) protein.

    7. High-performance computing of electron microstructures

      SciTech Connect (OSTI)

      Bishop, A. [Los Alamos National Lab., NM (United States); Birnir, B.; Galdrikian, B.; Wang, L. [Univ. of California, Santa Barbara, CA (United States)

      1998-12-01

      This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project was a collaboration between the Quantum Institute at the University of California-Santa Barbara (UCSB) and the Condensed Matter and Statistical Physics Group at LANL. The project objective, which was successfully accomplished, was to model quantum properties of semiconductor nanostructures that were fabricated and measured at UCSB using dedicated molecular-beam epitaxy and free-electron laser facilities. A nonperturbative dynamic quantum theory was developed for systems driven by time-periodic external fields. For such systems, dynamic energy spectra of electrons and photons and their corresponding wave functions were obtained. The results are in good agreement with experimental investigations. The algorithms developed are ideally suited for massively parallel computing facilities and provide a fundamental advance in the ability to predict quantum-well properties and guide their engineering. This is a definite step forward in the development of nonlinear optical devices.

    8. Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods

      DOE Patents [OSTI]

      Grossman, M.W.; George, W.A.

      1987-07-07

      A process is described for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H[sub 2]O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg[sub 2]Cl[sub 2]. The method for doing this involves dissolving a precise amount of Hg[sub 2]Cl[sub 2] in an electrolyte solution comprised of concentrated HCl and H[sub 2]O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg. 1 fig.

    9. Transient electron heat diffusivity obtained from trace impurity injection on TFTR

      SciTech Connect (OSTI)

      Kissick, M. W.; Fredrickson, E. D.; Callen, J. D.; Bush, C. E.; Chang, Z. Y.; Efthimion, P. C.; Hulse, R. A.; Mansfield, D. K.; Park, H. K.; Schivell, J.; Scott, S. D.; Synakowski, E. J.; Taylor, G.; Zarnstorff, M. C.

      1993-08-01

      A new method for obtaining a transient (``pulse``) electron heat diffusivity (?ep) in the radial region 0.38 < r/a < 0.56 in TFTR L-mode discharges is presented. Small electron temperature perturbations were caused by single bursts of injected impurities which radiated and cooled the plasma edge. An iron injection case by laser ablation was found to be more definitive than a supporting helium gas puff case. In this new ``cold pulse`` method, we concentrate on modeling just the electron temperature perturbations, tracked with ECE (electron cyclotron emission) diagnostics and on being able to justify separation in space and time from the cooling source. This ?ep is obtained for these two cases to be ?ep = (6.0m/s 35%) ~ 4?e(power balance) which is consistent with, but more definitive than, results from other studies that are more susceptible to ambiguities in the source profile.

    10. Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods

      DOE Patents [OSTI]

      Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

      1987-01-01

      A process for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H.sub.2 O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg.sub.2 Cl.sub.2. The method for doing this involves dissolving a precise amount of Hg.sub.2 Cl.sub.2 in an electrolyte solution comprised of concentrated HCl and H.sub.2 O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg.

    11. Heat-Rate Improvement Obtained by Retubing Power-Plant Condenser Enhanced Tubes

      Energy Science and Technology Software Center (OSTI)

      1994-01-21

      A utility will only retube a condenser with enhanced tubes if the incremental cost of the enhanced tubes can be offset with reduced fuel costs. The reduced fuel cost is obtained for some units because of the higher heat-transfer coefficient of enhanced tubes. They lead to improved condenser performance measured by a lower condenser pressure and therefore a more efficient power plant. However, the higher haet-transfer coefficients do not always guarantee that enhanced tubes willmore » be more cost effective. Other issues must be considered such as the cooling-water flow reduction due to the increased pressure drop, the low-pressure turbine heat-rate variation with backpressure, and the cooling-water pump and system characteristics. These and other parameters must be considered to calculate the efficiency improvement of the power plant as commonly measured by the quantity known as the heat rate. Knowing the heat-rate improvement, the fuel cost, and the incremental increase of the enhanced tubes from the supplier, the payback time can be determined. This program calculates the heat-rate improvement that can be obtained by retubing a power plant condenser with enhanced tubes of a particular type called Korodense LPD made by Wolverine Tube, Inc. The fuel savings are easily established knowing the heat-rate improvement. All electrical utilities are potential users because a condenser is used as the heat sink for every power plant.« less

    12. Wind Development Found to Increase County-Level Personal Income |

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

      Department of Energy This is an excerpt from the Fourth Quarter 2012 edition of the Wind Program R&D Newsletter. The U.S. Department of Energy's (DOE's) Lawrence Berkley National Laboratory and National Renewable Energy Laboratory (NREL) joined forces with the U.S. Department of Agriculture (USDA) to complete a first-of-its-kind study that quantifies the impact of wind energy development on county-level employment and personal income in the rural areas of the Great Plains and Rocky

    13. Argonne's Laboratory computing center - 2007 annual report.

      SciTech Connect (OSTI)

      Bair, R.; Pieper, G. W.

      2008-05-28

      Argonne National Laboratory founded the Laboratory Computing Resource Center (LCRC) in the spring of 2002 to help meet pressing program needs for computational modeling, simulation, and analysis. The guiding mission is to provide critical computing resources that accelerate the development of high-performance computing expertise, applications, and computations to meet the Laboratory's challenging science and engineering missions. In September 2002 the LCRC deployed a 350-node computing cluster from Linux NetworX to address Laboratory needs for mid-range supercomputing. This cluster, named 'Jazz', achieved over a teraflop of computing power (1012 floating-point calculations per second) on standard tests, making it the Laboratory's first terascale computing system and one of the 50 fastest computers in the world at the time. Jazz was made available to early users in November 2002 while the system was undergoing development and configuration. In April 2003, Jazz was officially made available for production operation. Since then, the Jazz user community has grown steadily. By the end of fiscal year 2007, there were over 60 active projects representing a wide cross-section of Laboratory expertise, including work in biosciences, chemistry, climate, computer science, engineering applications, environmental science, geoscience, information science, materials science, mathematics, nanoscience, nuclear engineering, and physics. Most important, many projects have achieved results that would have been unobtainable without such a computing resource. The LCRC continues to foster growth in the computational science and engineering capability and quality at the Laboratory. Specific goals include expansion of the use of Jazz to new disciplines and Laboratory initiatives, teaming with Laboratory infrastructure providers to offer more scientific data management capabilities, expanding Argonne staff use of national computing facilities, and improving the scientific reach and performance of Argonne's computational applications. Furthermore, recognizing that Jazz is fully subscribed, with considerable unmet demand, the LCRC has framed a 'path forward' for additional computing resources.

    14. Apparatuses and methods of determining if a person operating equipment is experiencing an elevated cognitive load

      DOE Patents [OSTI]

      Watkins, Michael L.; Keller, Paul Edwin; Amaya, Ivan A.

      2015-06-16

      A method of, and apparatus for, determining if a person operating equipment is experiencing an elevated cognitive load, wherein the person's use of a device at a first time is monitored so as to set a baseline signature. Then, at a later time, the person's use of the device is monitored to determine the person's performance at the second time, as represented by a performance signature. This performance signature can then be compared against the baseline signature to predict whether the person is experiencing an elevated cognitive load.

    15. Collective network for computer structures

      DOE Patents [OSTI]

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

      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.

    16. Foundational Tools for Petascale Computing

      SciTech Connect (OSTI)

      Miller, Barton

      2014-05-19

      The Paradyn project has a history of developing algorithms, techniques, and software that push the cutting edge of tool technology for high-end computing systems. Under this funding, we are working on a three-year agenda to make substantial new advances in support of new and emerging Petascale systems. The overall goal for this work is to address the steady increase in complexity of these petascale systems. Our work covers two key areas: (1) The analysis, instrumentation and control of binary programs. Work in this area falls under the general framework of the Dyninst API tool kits. (2) Infrastructure for building tools and applications at extreme scale. Work in this area falls under the general framework of the MRNet scalability framework. Note that work done under this funding is closely related to work done under a contemporaneous grant, High-Performance Energy Applications and Systems, SC0004061/FG02-10ER25972, UW PRJ36WV.

    17. 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.

    18. Process and apparatus for obtaining samples of liquid and gas from soil

      DOE Patents [OSTI]

      Rossabi, Joseph (105 Michael Ct., Aiken, SC 29801); May, Christopher P. (5002 Hesperus Dr., Columbia, MD 21044); Pemberton, Bradley E. (131 Glencarin Dr., Aiken, SC 29803); Shinn, Jim (Box 65, RFD. #1, South Royalton, VT 05068); Sprague, Keith (Box 234 Rte. 14, Brookfield, VT 05036)

      1999-01-01

      An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus.

    19. Process and apparatus for obtaining samples of liquid and gas from soil

      DOE Patents [OSTI]

      Rossabi, J.; May, C.P.; Pemberton, B.E.; Shinn, J.; Sprague, K.

      1999-03-30

      An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus. 8 figs.

    20. ASCR Workshop on Quantum Computing for Science

      SciTech Connect (OSTI)

      Aspuru-Guzik, Alan; Van Dam, Wim; Farhi, Edward; Gaitan, Frank; Humble, Travis; Jordan, Stephen; Landahl, Andrew J; Love, Peter; Lucas, Robert; Preskill, John; Muller, Richard P.; Svore, Krysta; Wiebe, Nathan; Williams, Carl

      2015-06-01

      This report details the findings of the DOE ASCR Workshop on Quantum Computing for Science that was organized to assess the viability of quantum computing technologies to meet the computational requirements of the DOE’s science and energy mission, and to identify the potential impact of quantum technologies. The workshop was held on February 17-18, 2015, in Bethesda, MD, to solicit input from members of the quantum computing community. The workshop considered models of quantum computation and programming environments, physical science applications relevant to DOE's science mission as well as quantum simulation, and applied mathematics topics including potential quantum algorithms for linear algebra, graph theory, and machine learning. This report summarizes these perspectives into an outlook on the opportunities for quantum computing to impact problems relevant to the DOE’s mission as well as the additional research required to bring quantum computing to the point where it can have such impact.

    1. Cupola Furnace Computer Process Model

      SciTech Connect (OSTI)

      Seymour Katz

      2004-12-31

      The cupola furnace generates more than 50% of the liquid iron used to produce the 9+ million tons of castings annually. The cupola converts iron and steel into cast iron. The main advantages of the cupola furnace are lower energy costs than those of competing furnaces (electric) and the ability to melt less expensive metallic scrap than the competing furnaces. However the chemical and physical processes that take place in the cupola furnace are highly complex making it difficult to operate the furnace in optimal fashion. The results are low energy efficiency and poor recovery of important and expensive alloy elements due to oxidation. Between 1990 and 2004 under the auspices of the Department of Energy, the American Foundry Society and General Motors Corp. a computer simulation of the cupola furnace was developed that accurately describes the complex behavior of the furnace. When provided with the furnace input conditions the model provides accurate values of the output conditions in a matter of seconds. It also provides key diagnostics. Using clues from the diagnostics a trained specialist can infer changes in the operation that will move the system toward higher efficiency. Repeating the process in an iterative fashion leads to near optimum operating conditions with just a few iterations. More advanced uses of the program have been examined. The program is currently being combined with an ''Expert System'' to permit optimization in real time. The program has been combined with ''neural network'' programs to affect very easy scanning of a wide range of furnace operation. Rudimentary efforts were successfully made to operate the furnace using a computer. References to these more advanced systems will be found in the ''Cupola Handbook''. Chapter 27, American Foundry Society, Des Plaines, IL (1999).

    2. Composition and microstructure of zirconium and hafnium germanates obtained by different chemical routes

      SciTech Connect (OSTI)

      Utkin, A.V. Prokip, V.E.; Baklanova, N.I.

      2014-01-15

      The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. The products were characterized using high-temperature X-ray diffraction analysis (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and thermal (TG/DTA) analysis. To investigate the phase composition and stoichiometry of compounds the unit cell parameters were refined by full-profile Rietveld XRD analysis. The morphology of products and its evolution during high-temperature treatment was examined by SEM analysis. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. The ceramic route requires a multi-stage high-temperature treatment to obtain zirconium and hafnium germanates of 95% purity or more. Also, there are strong diffusion limitations to obtain hafnium germanate Hf{sub 3}GeO{sub 8} by ceramic route. On the contrary, the co-precipitation route leads to the formation of nanocrystalline single phase germanates of stoichiometric composition at a relatively low temperatures (less than 1000 C). The results of quantitative XRD analysis showed the hafnium germanates are stoichiometric compounds in contrast to zirconium germanates that form a set of solid solutions. This distinction may be related to the difference in the ion radii of Zr and Hf. - Graphical abstract: The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. Display Omitted - Highlights: Zr and Hf germanates were synthesized by ceramic and co-precipitation routes. The morphology of products depends on the synthesis parameters. Zirconium germanates forms a set of solid solutions. Hafnium germanates are stoichiometric compounds.

    3. Analysis of the Quality of Information Obtained About Uterine Artery Embolization From the Internet

      SciTech Connect (OSTI)

      Tavare, Aniket N.; Alsafi, Ali Hamady, Mohamad S.

      2012-12-15

      Purpose: The Internet is widely used by patients to source health care-related information. We sought to analyse the quality of information available on the Internet about uterine artery embolization (UAE). Materials and Methods: We searched three major search engines for the phrase 'uterine artery embolization' and compiled the top 50 results from each engine. After excluding repeated sites, scientific articles, and links to documents, the remaining 50 sites were assessed using the LIDA instrument, which scores sites across the domains of accessibility, usability, and reliability. The Fleisch reading ease score (FRES) was calculated for each of the sites. Finally, we checked the country of origin and the presence of certification by the Health On the Net Foundation (HONcode) as well as their effect on LIDA and FRES scores.ResultsThe following mean scores were obtained: accessibility 48/60 (80%), usability 42/54 (77%), reliability 20/51 (39%), total LIDA 110/165 (67%), and FRES 42/100 (42%). Nine sites had HONcode certification, and this was associated with significantly greater (p < 0.05) reliability and total LIDA and FRES scores. When comparing sites between United Kingdom and United States, there was marked variation in the quality of results obtained when searching for information on UAE (p < 0.05). Conclusion: In general, sites were well designed and easy to use. However, many scored poorly on the reliability of their information either because they were produced in a non-evidence-based way or because they lacking currency. It is important that patients are guided to reputable, location-specific sources of information online, especially because prominent search engine rank does not guarantee reliability of information.

    4. A computational framework for uncertainty quantification and stochastic optimization in unit commitment with wind power generation.

      SciTech Connect (OSTI)

      Constantinescu, E. M; Zavala, V. M.; Rocklin, M.; Lee, S.; Anitescu, M.

      2011-02-01

      We present a computational framework for integrating a state-of-the-art numerical weather prediction (NWP) model in stochastic unit commitment/economic dispatch formulations that account for wind power uncertainty. We first enhance the NWP model with an ensemble-based uncertainty quantification strategy implemented in a distributed-memory parallel computing architecture. We discuss computational issues arising in the implementation of the framework and validate the model using real wind-speed data obtained from a set of meteorological stations. We build a simulated power system to demonstrate the developments.

    5. Neutrinos from WIMP annihilations obtained using a full three-flavor Monte Carlo approach

      SciTech Connect (OSTI)

      Blennow, Mattias; Ohlsson, Tommy; Edsjoe, Joakim E-mail: edsjo@physto.se

      2008-01-15

      Weakly interacting massive particles (WIMPs) are one of the main candidates for making up the dark matter in the Universe. If these particles make up the dark matter, then they can be captured by the Sun or the Earth, sink to the respective cores, annihilate, and produce neutrinos. Thus, these neutrinos can be a striking dark matter signature at neutrino telescopes looking towards the Sun and/or the Earth. Here, we improve previous analyses on computing the neutrino yields from WIMP annihilations in several respects. We include neutrino oscillations in a full three-flavor framework as well as all effects from neutrino interactions on the way through the Sun (absorption, energy loss, and regeneration from tau decays). In addition, we study the effects of non-zero values of the mixing angle {theta}{sub 13} as well as the normal and inverted neutrino mass hierarchies. Our study is performed in an event-based setting which makes these results very useful both for theoretical analyses and for building a neutrino telescope Monte Carlo code. All our results for the neutrino yields, as well as our Monte Carlo code, are publicly available. We find that the yield of muon-type neutrinos from WIMP annihilations in the Sun is enhanced or suppressed, depending on the dominant WIMP annihilation channel. This effect is due to an effective flavor mixing caused by neutrino oscillations. For WIMP annihilations inside the Earth, the distance from source to detector is too small to allow for any significant amount of oscillations at the neutrino energies relevant for neutrino telescopes.

    6. Computational Design of Metal Ion Sequestering Agents

      SciTech Connect (OSTI)

      Hay, Benjamin P.; Rapko, Brian M.

      2005-06-15

      Organic ligands that exhibit a high degree of metal ion recognition are essential precursors for developing separation processes and sensors for metal ions. Since the beginning of the nuclear era, much research has focused on discovering ligands that target specific radionuclides. Members of the Group 1A and 2A cations (e.g., Cs, Sr, Ra) and the f-block metals (actinides and lanthanides) are of primary concern to DOE. Although there has been some success in identifying ligand architectures that exhibit a degree of metal ion recognition, the ability to control binding affinity and selectivity remains a significant challenge. The traditional approach for discovering such ligands has involved lengthy programs of organic synthesis and testing that, in the absence of reliable methods for screening compounds before synthesis, have resulted in much wasted research effort. This project seeks to enhance and strengthen the traditional approach through computer-aided design of new and improved host molecules. Accurate electronic structure calculations are coupled with experimental data to provide fundamental information about ligand structure and the nature of metal-donor group interactions (design criteria). This fundamental information then is used in a molecular mechanics model (MM) that helps us rapidly screen proposed ligand architectures and select the best members from a set of potential candidates. By using combinatorial methods, molecule building software has been developed that generates large numbers of candidate architectures for a given set of donor groups. The specific goals of this project are: further understand the structural and energetic aspects of individual donor group- metal ion interactions and incorporate this information within the MM framework further develop and evaluate approaches for correlating ligand structure with reactivity toward metal ions, in other words, screening capability use molecule structure building software to generate large numbers of candidate ligand architectures for given sets of donor groups screen candidates and identify ligand architectures that will exhibit enhanced metal ion recognition. These new capabilities are being applied to ligand systems identified under other DOEsponsored projects where studies have suggested that modifying existing architectures will lead to dramatic enhancements in metal ion binding affinity and selectivity. With this in mind, we are collaborating with Professors R. T. Paine (University of New Mexico), K. N. Raymond (University of California, Berkeley), and J. E. Hutchison (University of Oregon), and Dr. B. A. Moyer (Oak Ridge National Laboratory) to obtain experimental validation of the predicted new ligand structures. Successful completion of this study will yield molecular-level insight into the role that ligand architecture plays in controlling metal ion complexation and will provide a computational approach to ligand design.

    7. Efficient double beta decay nuclear matrix elements computations

      SciTech Connect (OSTI)

      Neacsu, Andrei [Horia Hulubei Foundation (FHH) 407 Atomistilor, Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH) 30 Reactorului, Magurele-Bucharest 077125 (Romania)

      2012-11-20

      We have developed a shell model code for the accurate computation of the two-body matrix elements of the transition operators involved in the neutrinoless double beta decay. This code features coupled cluster method short-range correlations with Jastrow-like functions, finite nucleon size effect and higher order nucleon current corrections. We present the results obtained for {sup 48}Ca and {sup 82}Se, then we compare them with other results in the literature. In the case of {sup 48}Ca, we also study the contributions of the included effects and find good agreement with other published results.

    8. Computer tomography of large dust clouds in complex plasmas

      SciTech Connect (OSTI)

      Killer, Carsten; Himpel, Michael; Melzer, Andr

      2014-10-15

      The dust density is a central parameter of a dusty plasma. Here, a tomography setup for the determination of the three-dimensionally resolved density distribution of spatially extended dust clouds is presented. The dust clouds consist of micron-sized particles confined in a radio frequency argon plasma, where they fill almost the entire discharge volume. First, a line-of-sight integrated dust density is obtained from extinction measurements, where the incident light from an LED panel is scattered and absorbed by the dust. Performing these extinction measurements from many different angles allows the reconstruction of the 3D dust density distribution, analogous to a computer tomography in medical applications.

    9. Chameleon: A Computer Science Testbed as Application of Cloud...

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

      Chameleon: A Computer Science Testbed as Application of Cloud Computing Event Sponsor: Mathematics and Computing Science Brownbag Lunch Start Date: Dec 15 2015 - 12:00pm Building...

    10. Large Scale Computing and Storage Requirements for Advanced Scientific...

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

      Large Scale Computing and Storage Requirements for Advanced Scientific Computing Research: Target 2014 ASCRFrontcover.png Large Scale Computing and Storage Requirements for ...

    11. Previous Computer Science Award Announcements | U.S. DOE Office...

      Office of Science (SC) Website

      Previous Computer Science Award Announcements Advanced Scientific Computing Research (ASCR) ASCR Home About Research Applied Mathematics Computer Science Exascale Tools Workshop...

    12. Technical Standards, Guidance on MELCOR computer code - May 3...

      Office of Environmental Management (EM)

      Standards, Guidance on MELCOR computer code - May 3, 2004 Technical Standards, Guidance on MELCOR computer code - May 3, 2004 May 3, 2004 MELCOR Computer Code Application Guidance...

    13. High-performance computer system installed at Los Alamos National...

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

      High-performance computer system installed at Lab High-performance computer system installed at Los Alamos National Laboratory New high-performance computer system, called Wolf,...

    14. Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis

      DOE Patents [OSTI]

      Noble, Donald T. (Ames, IA); Braymen, Steven D. (Ames, IA); Anderson, Marvin S. (Ames, IA)

      1996-10-01

      A casing-less down hole sampling system for acquiring a subsurface sample for analysis using an inductively coupled plasma system is disclosed. The system includes a probe which is pushed into the formation to be analyzed using a hydraulic ram system. The probe includes a detachable tip member which has a soil point mad a barb, with the soil point aiding the penetration of the earth, and the barb causing the tip member to disengage from the probe and remain in the formation when the probe is pulled up. The probe is forced into the formation to be tested, and then pulled up slightly, to disengage the tip member and expose a column of the subsurface formation to be tested. An instrumentation tube mounted in the probe is then extended outward from the probe to longitudinally extend into the exposed column. A balloon seal mounted on the end of the instrumentation tube allows the bottom of the column to be sealed. A source of laser radiation is emitted from the instrumentation tube to ablate a sample from the exposed column. The instrumentation tube can be rotated in the probe to sweep the laser source across the surface of the exposed column. An aerosol transport system carries the ablated sample from the probe to the surface for testing in an inductively coupled plasma system. By testing at various levels in the down-hole as the probe is extracted from the soil, a profile of the subsurface formation may be obtained.

    15. Qualification of data obtained during a severe accident. Illustrative examples from TMI-2 evaluations

      SciTech Connect (OSTI)

      Rempe, Joy L.; Knudson, Darrell L.

      2015-02-01

      The accidents at the Three Mile Island Unit 2 (TMI-2) Pressurized Water Reactor (PWR) and the Daiichi Units 1, 2, and 3 Boiling Water Reactors (BWRs) provide unique opportunities to evaluate instrumentation exposed to severe accident conditions. Conditions associated with the release of coolant and the hydrogen burn that occurred during the TMI-2 accident exposed instrumentation to harsh conditions, including direct radiation, radioactive contamination, and high humidity with elevated temperatures and pressures. Post-TMI-2 instrumentation evaluation programs focused on data required by TMI-2 operators to assess the condition of the reactor and containment and the effect of mitigating actions taken by these operators. Prior efforts also focused on sensors providing data required for subsequent forensic evaluations and accident simulations. This paper provides additional details related to the formal process used to develop a qualified TMI-2 data base and presents data qualification details for three parameters: reactor coolant system (RCS) pressure; containment building temperature; and containment pressure. These selected examples illustrate the types of activities completed in the TMI-2 data qualification process and the importance of such a qualification effort. These details are described to facilitate implementation of a similar process using data and examinations at the Daiichi Units 1, 2, and 3 reactors so that BWR-specific benefits can be obtained.

    16. Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis

      DOE Patents [OSTI]

      Noble, D.T.; Braymen, S.D.; Anderson, M.S.

      1996-10-01

      A casing-less down hole sampling system for acquiring a subsurface sample for analysis using an inductively coupled plasma system is disclosed. The system includes a probe which is pushed into the formation to be analyzed using a hydraulic ram system. The probe includes a detachable tip member which has a soil point and a barb, with the soil point aiding the penetration of the earth, and the barb causing the tip member to disengage from the probe and remain in the formation when the probe is pulled up. The probe is forced into the formation to be tested, and then pulled up slightly, to disengage the tip member and expose a column of the subsurface formation to be tested. An instrumentation tube mounted in the probe is then extended outward from the probe to longitudinally extend into the exposed column. A balloon seal mounted on the end of the instrumentation tube allows the bottom of the column to be sealed. A source of laser radiation is emitted from the instrumentation tube to ablate a sample from the exposed column. The instrumentation tube can be rotated in the probe to sweep the laser source across the surface of the exposed column. An aerosol transport system carries the ablated sample from the probe to the surface for testing in an inductively coupled plasma system. By testing at various levels in the down-hole as the probe is extracted from the soil, a profile of the subsurface formation may be obtained. 9 figs.

    17. Apparatus for transmitting power obtained by converting the exhaust energy of an engine

      SciTech Connect (OSTI)

      Miyajima, H.

      1988-08-30

      This patent describes an apparatus for transmitting power obtained by converting the exhaust energy of a primary engine, the primary engine having a crank shaft and an exhaust passage for passing exhaust gas from the engine. The apparatus consists of: an output turbine having an output shaft and an intake port coupled to the exhaust passage; a compressor mounted on the output shaft of the turbine and including an outlet port; a rotary type engine having a double jointed trochoidal shaped rotor housing, the housing having an expansion chamber with an intake port and an outlet port and a compression chamber, the engine further comprising an eccentrically rotatable generally triangular shaped rotor mounted within the housing and a rotor shaft coupled to the rotor. The outlet port of the compressor is coupled to the intake port of the expansion chamber, the outlet port of the expansion chamber being coupled to the intake port of the output turbine; and power transmitting means connected between the crank shaft of the primary engine and the rotor shaft of the rotary engine whereby auxiliary power is provided to the primary engine.

    18. Locating hardware faults in a parallel computer

      DOE Patents [OSTI]

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

      2010-04-13

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

    19. Impact analysis on a massively parallel computer

      SciTech Connect (OSTI)

      Zacharia, T.; Aramayo, G.A.

      1994-06-01

      Advanced mathematical techniques and computer simulation play a major role in evaluating and enhancing the design of beverage cans, industrial, and transportation containers for improved performance. Numerical models are used to evaluate the impact requirements of containers used by the Department of Energy (DOE) for transporting radioactive materials. Many of these models are highly compute-intensive. An analysis may require several hours of computational time on current supercomputers despite the simplicity of the models being studied. As computer simulations and materials databases grow in complexity, massively parallel computers have become important tools. Massively parallel computational research at the Oak Ridge National Laboratory (ORNL) and its application to the impact analysis of shipping containers is briefly described in this paper.

    20. Radiation shielding properties of barite coated fabric by computer programme

      SciTech Connect (OSTI)

      Akarslan, F.; Molla, T.; nc, I. S.; K?l?ncarslan, S.; Akkurt, I.

      2015-03-30

      With the development of technology radiation started to be used in variety of different fields. As the radiation is hazardous for human health, it is important to keep radiation dose as low as possible. This is done mainly using shielding materials. Barite is one of the important materials in this purpose. As the barite is not used directly it can be used in some other materials such as fabric. For this purposes barite has been coated on fabric in order to improve radiation shielding properties of fabric. Determination of radiation shielding properties of coated fabric has been done by using computer program written C# language. With this program the images obtained from digital Rontgen films is used to determine radiation shielding properties in terms of image processing numerical values. Those values define radiation shielding and in this way the coated barite effect on radiation shielding properties of fabric has been obtained.

    1. Performing an allreduce operation on a plurality of compute nodes of a parallel computer

      DOE Patents [OSTI]

      Faraj, Ahmad (Rochester, MN)

      2012-04-17

      Methods, apparatus, and products are disclosed for performing an allreduce operation on a plurality of compute nodes of a parallel computer. Each compute node includes at least two processing cores. Each processing core has contribution data for the allreduce operation. Performing an allreduce operation on a plurality of compute nodes of a parallel computer includes: establishing one or more logical rings among the compute nodes, each logical ring including at least one processing core from each compute node; performing, for each logical ring, a global allreduce operation using the contribution data for the processing cores included in that logical ring, yielding a global allreduce result for each processing core included in that logical ring; and performing, for each compute node, a local allreduce operation using the global allreduce results for each processing core on that compute node.

    2. Multicore: Fallout from a Computing Evolution

      ScienceCinema (OSTI)

      Yelick, Kathy [Director, NERSC

      2009-09-01

      July 22, 2008 Berkeley Lab lecture: Parallel computing used to be reserved for big science and engineering projects, but in two years that's all changed. Even laptops and hand-helds use parallel processors. Unfortunately, the software hasn't kept pace. Kathy Yelick, Director of the National Energy Research Scientific Computing Center at Berkeley Lab, describes the resulting chaos and the computing community's efforts to develop exciting applications that take advantage of tens or hundreds of processors on a single chip.

    3. Validating Computer-Designed Proteins for Vaccines

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

      Validating Computer-Designed Proteins for Vaccines Print In the struggle to keep up with microbes whose rapid mutations outpace our ability to produce vaccines, the human race has a powerful ally: computers. Researchers have now figured out a way to use computational protein design to generate small, stable proteins that accurately mimic key viral structures; these can then be used in vaccines to induce potent neutralizing antibodies. The results were validated in part using protein structures

    4. Shaping Future Supercomputing Argonne Leadership Computing Facility

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

      0 1 1 a n n u a l r e p o r t Shaping Future Supercomputing Argonne Leadership Computing Facility ANL-12/22 Argonne Leadership Computing Facility 2 0 1 1 a l c f a n n u a l r e p o r t w w w . a l c f . a n l . g o v Contents Overview .......................................2 Mira ..............................................4 Science Highlights ...........................8 Computing Resources ..................... 26 2011 ALCF Publications .................. 28 2012 INCITE Projects

    5. Present and Future Computing Requirements for PETSc

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

      and Future Computing Requirements for PETSc Jed Brown jedbrown@mcs.anl.gov Mathematics and Computer Science Division, Argonne National Laboratory Department of Computer Science, University of Colorado Boulder NERSC ASCR Requirements for 2017 2014-01-15 Extending PETSc's Hierarchically Nested Solvers ANL Lois C. McInnes, Barry Smith, Jed Brown, Satish Balay UChicago Matt Knepley IIT Hong Zhang LBL Mark Adams Linear solvers, nonlinear solvers, time integrators, optimization methods (merged TAO)

    6. High Performance Computing Student Career Resources

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

      HPC » Students High Performance Computing Student Career Resources Explore the multiple dimensions of a career at Los Alamos Lab: work with the best minds on the planet in an inclusive environment that is rich in intellectual vitality and opportunities for growth. Contact Us Student Liaison Josephine Kilde (505) 667-5086 Email High Performance Computing Capabilities The High Performance Computing (HPC) Division supports the Laboratory mission by managing world-class Supercomputing Centers. Our

    7. Validating Computer-Designed Proteins for Vaccines

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

      Validating Computer-Designed Proteins for Vaccines Print In the struggle to keep up with microbes whose rapid mutations outpace our ability to produce vaccines, the human race has a powerful ally: computers. Researchers have now figured out a way to use computational protein design to generate small, stable proteins that accurately mimic key viral structures; these can then be used in vaccines to induce potent neutralizing antibodies. The results were validated in part using protein structures

    8. Validating Computer-Designed Proteins for Vaccines

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

      Validating Computer-Designed Proteins for Vaccines Print In the struggle to keep up with microbes whose rapid mutations outpace our ability to produce vaccines, the human race has a powerful ally: computers. Researchers have now figured out a way to use computational protein design to generate small, stable proteins that accurately mimic key viral structures; these can then be used in vaccines to induce potent neutralizing antibodies. The results were validated in part using protein structures

    9. Validating Computer-Designed Proteins for Vaccines

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

      Validating Computer-Designed Proteins for Vaccines Print In the struggle to keep up with microbes whose rapid mutations outpace our ability to produce vaccines, the human race has a powerful ally: computers. Researchers have now figured out a way to use computational protein design to generate small, stable proteins that accurately mimic key viral structures; these can then be used in vaccines to induce potent neutralizing antibodies. The results were validated in part using protein structures

    10. INCITE Program | Argonne Leadership Computing Facility

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

      Science at ALCF Allocation Programs INCITE Program 5 Checks & 5 Tips for INCITE Mira Computational Readiness Assessment ALCC Program Director's Discretionary (DD) Program Early Science Program INCITE 2016 Projects ALCC 2015 Projects ESP Projects View All Projects Publications ALCF Tech Reports Industry Collaborations INCITE Program Innovative and Novel Computational Impact on Theory and Experiment (INCITE) Program The INCITE program provides allocations to computationally intensive,

    11. Improved computer models support genetics research

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

      February » Simple computer models unravel genetic stress reactions in cells Simple computer models unravel genetic stress reactions in cells Integrated biological and computational methods provide insight into why genes are activated. February 8, 2013 When complete, these barriers will be a portion of the NMSSUP upgrade. This molecular structure depicts a yeast transfer ribonucleic acid (tRNA), which carries a single amino acid to the ribosome during protein construction. A combined

    12. Fermilab | Science at Fermilab | Computing | Networking

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

      Detectors and Computing Detectors and Computing Computing Networking Physicists are constantly exchanging information, within Fermilab and between Fermilab and collaborating institutions. They do this from the design phase of an experiment to long after they have finished collecting data. To move huge amounts of data from one place to another, Fermilab needs high-performance networking. For years, Fermilab has been the largest user of Energy Services Network, or ESnet, a network the Department

    13. Accounts Policy | Argonne Leadership Computing Facility

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

      Accounts Policy All holders of user accounts must abide by all appropriate Argonne Leadership Computing Facility and Argonne National Laboratory computing usage policies. These are described at the time of the account request and include requirements such as using a sufficiently strong password, appropriate use of the system, and so on. Any user not following these requirements will have their account disabled. Furthermore, ALCF resources are intended to be used as a computing resource for

    14. Introduction to High Performance Computing Using GPUs

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

      HPC Using GPUs Introduction to High Performance Computing Using GPUs July 11, 2013 NERSC, NVIDIA, and The Portland Group presented a one-day workshop "Introduction to High Performance Computing Using GPUs" on July 11, 2013 in Room 250 of Sutardja Dai Hall on the University of California, Berkeley, campus. Registration was free and open to all NERSC users; Berkeley Lab Researchers; UC students, faculty, and staff; and users of the Oak Ridge Leadership Computing Facility. This workshop

    15. James Osborn | Argonne Leadership Computing Facility

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

      Osborn Computational Scientist / Catalyst Team Lead James Osborn Argonne National Laboratory 9700 South Cass Avenue Building 240 - Rm. 2126 Argonne, IL 60439 630-252-6327 osborn@alcf.anl.gov James Osborn is a Computational Scientist at the ALCF and a Fellow of the Computation Institute at The University of Chicago and Argonne. He specializes in the application of Lattice Field Theory, Random Matrix Theory, and cluster algorithms to strongly interacting systems. He is also interested in

    16. Computer Networking Group | Stanford Synchrotron Radiation Lightsource

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

      Computer 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

    17. Digital computer operation of a nuclear reactor

      DOE Patents [OSTI]

      Colley, Robert W. (Richland, WA)

      1984-01-01

      A method is described for the safe operation of a complex system such as a nuclear reactor using a digital computer. The computer is supplied with a data base containing a list of the safe state of the reactor and a list of operating instructions for achieving a safe state when the actual state of the reactor does not correspond to a listed safe state, the computer selects operating instructions to return the reactor to a safe state.

    18. User Advisory Council | Argonne Leadership Computing Facility

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

      About Overview History Staff Directory Our Teams User Advisory Council Careers Margaret Butler Fellowship Visiting Us Contact Us User Advisory Council The User Advisory Council meets regularly to review major policies and to provide user feedback to the facility leadership. All council members are active Principal Investigators or users of ALCF computational resources through one or more of the allocation programs. Martin Berzins Professor Department of Computer Science Scientific Computing and

    19. Improved computer models support genetics research

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

      Simple computer models unravel genetic stress reactions in cells Simple computer models unravel genetic stress reactions in cells Integrated biological and computational methods provide insight into why genes are activated. February 8, 2013 When complete, these barriers will be a portion of the NMSSUP upgrade. This molecular structure depicts a yeast transfer ribonucleic acid (tRNA), which carries a single amino acid to the ribosome during protein construction. A combined experimental and

    20. Digital computer operation of a nuclear reactor

      DOE Patents [OSTI]

      Colley, R.W.

      1982-06-29

      A method is described for the safe operation of a complex system such as a nuclear reactor using a digital computer. The computer is supplied with a data base containing a list of the safe state of the reactor and a list of operating instructions for achieving a safe state when the actual state of the reactor does not correspond to a listed safe state, the computer selects operating instructions to return the reactor to a safe state.

    1. About ALCF | Argonne Leadership Computing Facility

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

      HPC at Argonne About ALCF The Argonne Leadership Computing Facility's (ALCF) mission is to accelerate major scientific discoveries and engineering breakthroughs for humanity by designing and providing world-leading computing facilities in partnership with the computational science community. We help researchers solve some of the world's largest and most complex problems with our unique combination of supercomputing resources and expertise. ALCF projects cover many scientific disciplines, ranging

    2. Covered Product Category: Computers | Department of Energy

      Office of Environmental Management (EM)

      Computers Covered Product Category: Computers The Federal Energy Management Program (FEMP) provides acquisition guidance for computers, a product category covered by the ENERGY STAR program. Federal laws and requirements mandate that agencies buy ENERGY STAR-qualified products in all product categories covered by this program and any acquisition actions that are not specifically exempted by law. MEETING EFFICIENCY REQUIREMENTS FOR FEDERAL PURCHASES The U.S. Environmental Protection Agency (EPA)

    3. Development of a general method for obtaining the geometry of microfluidic networks

      SciTech Connect (OSTI)

      Razavi, Mohammad Sayed Salimpour, M. R.; Shirani, Ebrahim

      2014-01-15

      In the present study, a general method for geometry of fluidic networks is developed with emphasis on pressure-driven flows in the microfluidic applications. The design method is based on general features of network's geometry such as cross-sectional area and length of channels. Also, the method is applicable to various cross-sectional shapes such as circular, rectangular, triangular, and trapezoidal cross sections. Using constructal theory, the flow resistance, energy loss and performance of the network are optimized. Also, by this method, practical design strategies for the fabrication of microfluidic networks can be improved. The design method enables rapid prediction of fluid flow in the complex network of channels and is very useful for improving proper miniaturization and integration of microfluidic networks. Minimization of flow resistance of the network of channels leads to universal constants for consecutive cross-sectional areas and lengths. For a Y-shaped network, the optimal ratios of consecutive cross-section areas (A{sub i+1}/A{sub i}) and lengths (L{sub i+1}/L{sub i}) are obtained as A{sub i+1}/A{sub i} = 2{sup ?2/3} and L{sub i+1}/L{sub i} = 2{sup ?1/3}, respectively. It is shown that energy loss in the network is proportional to the volume of network. It is also seen when the number of channels is increased both the hydraulic resistance and the volume occupied by the network are increased in a similar manner. Furthermore, the method offers that fabrication of multi-depth and multi-width microchannels should be considered as an integral part of designing procedures. Finally, numerical simulations for the fluid flow in the network have been performed and results show very good agreement with analytic results.

    4. The Radiological Safety Analysis Computer Program (RSAC-5) user`s manual. Revision 1

      SciTech Connect (OSTI)

      Wenzel, D.R.

      1994-02-01

      The Radiological Safety Analysis Computer Program (RSAC-5) calculates the consequences of the release of radionuclides to the atmosphere. Using a personal computer, a user can generate a fission product inventory from either reactor operating history or nuclear criticalities. RSAC-5 models the effects of high-efficiency particulate air filters or other cleanup systems and calculates decay and ingrowth during transport through processes, facilities, and the environment. Doses are calculated through the inhalation, immersion, ground surface, and ingestion pathways. RSAC+, a menu-driven companion program to RSAC-5, assists users in creating and running RSAC-5 input files. This user`s manual contains the mathematical models and operating instructions for RSAC-5 and RSAC+. Instructions, screens, and examples are provided to guide the user through the functions provided by RSAC-5 and RSAC+. These programs are designed for users who are familiar with radiological dose assessment methods.

    5. Extreme Scale Computing, Co-design

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

      ... software, and hardware in an integrated computational co-design process. * Designed Cruft, a suite of molecular dynamics proxy applications (software) developed to explore ...

    6. Computer virus information update CIAC-2301

      SciTech Connect (OSTI)

      Orvis, W.J.

      1994-01-15

      While CIAC periodically issues bulletins about specific computer viruses, these bulletins do not cover all the computer viruses that affect desktop computers. The purpose of this document is to identify most of the known viruses for the MS-DOS and Macintosh platforms and give an overview of the effects of each virus. The authors also include information on some windows, Atari, and Amiga viruses. This document is revised periodically as new virus information becomes available. This document replaces all earlier versions of the CIAC Computer virus Information Update. The date on the front cover indicates date on which the information in this document was extracted from CIAC`s Virus database.

    7. Bayesian approaches for combining computational model output...

      Office of Scientific and Technical Information (OSTI)

      for combining computational model output and physical observations Authors: Higdon, David M 1 ; Lawrence, Earl 1 ; Heitmann, Katrin 2 ; Habib, Salman 2 + Show Author...

    8. Climate Modeling using High-Performance Computing

      SciTech Connect (OSTI)

      Mirin, A A

      2007-02-05

      The Center for Applied Scientific Computing (CASC) and the LLNL Climate and Carbon Science Group of Energy and Environment (E and E) are working together to improve predictions of future climate by applying the best available computational methods and computer resources to this problem. Over the last decade, researchers at the Lawrence Livermore National Laboratory (LLNL) have developed a number of climate models that provide state-of-the-art simulations on a wide variety of massively parallel computers. We are now developing and applying a second generation of high-performance climate models. Through the addition of relevant physical processes, we are developing an earth systems modeling capability as well.

    9. Computable General Equilibrium Models for Sustainability Impact...

      Open Energy Info (EERE)

      Publications, Softwaremodeling tools User Interface: Other Website: iatools.jrc.ec.europa.eudocsecolecon2006.pdf Computable General Equilibrium Models for Sustainability...

    10. Computers in Commercial Buildings - Table 3

      U.S. Energy Information Administration (EIA) Indexed Site

      Back to Computers in Commercial Buildings Specific questions may be directed to: Jay Olsen jay.olsen@eia.doe.gov http:www.eia.govconsumptioncommercialdataarchive...

    11. Computers in Commercial Buildings - Table 2

      U.S. Energy Information Administration (EIA) Indexed Site

      Back to Computers in Commercial Buildings Specific questions may be directed to: Jay Olsen jay.olsen@eia.doe.gov http:www.eia.govconsumptioncommercialdataarchive...

    12. Computers in Commercial Buildings - Table 4

      U.S. Energy Information Administration (EIA) Indexed Site

      Back to Computers in Commercial Buildings Specific questions may be directed to: Jay Olsen jay.olsen@eia.doe.gov http:www.eia.govconsumptioncommercialdataarchive...

    13. Computers in Commercial Buildings - Table 1

      U.S. Energy Information Administration (EIA) Indexed Site

      Back to Computers in Commercial Buildings Specific questions may be directed to: Jay Olsen jay.olsen@eia.doe.gov http:www.eia.govconsumptioncommercialdataarchive...

    14. Computational Scientist | Princeton Plasma Physics Lab

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

      Department, with interest in leadership class computing of gyrokinetic fusion edge plasma research. A candidate who has knowledge in hybrid parallel programming with MPI, OpenMP,...

    15. Computational Design of Interfaces for Photovoltaics | Argonne...

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

      Computational Design of Interfaces for Photovoltaics PI Name: Noa Marom PI Email: nmarom@tulane.edu Institution: Tulane University Allocation Program: ALCC Allocation Hours at...

    16. Computational Challenges for Nanostructure Solar Cells

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

      Challenges for Nanostructure Solar Cells Computational Challenges for Nanostructure Solar Cells ZZ2.jpg Key Challenges: Current nanostructure solar cells often have energy...

    17. Integrated Computational Materials Engineering (ICME) for Mg...

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

      Project (Part 1) Integrated Computational Materials Engineering (ICME) for Mg: International Pilot Project (Part 1) 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit...

    18. DOE Advanced Scientific Computing Advisory Subcommittee (ASCAC...

      Office of Scientific and Technical Information (OSTI)

      existing computer designs to reach exascale. The technical challenges revolve around energy consumption, memory performance, resilience, extreme concurrency, and big data....

    19. BETO Webinar: Computational Studies of Lignocellulose Deconstruction

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

      ... - lower temperature CH2-CH2 cleavage - facilitated by CaO Dehydrogenation Electron transfer > Exploiting quantum and classical computational methods to study the atomistic ...

    20. Hybrid Rotaxanes: Interlocked Structures for Quantum Computing...

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

      Hybrid Rotaxanes: Interlocked Structures for Quantum Computing? Print Rotaxanes are mechanically interlocked molecular architectures consisting of a dumbbell-shaped molecule, the...