National Library of Energy BETA

Sample records for digital computer invention

  1. ELECTRONIC DIGITAL COMPUTER

    DOEpatents

    Stone, J.J. Jr.; Bettis, E.S.; Mann, E.R.

    1957-10-01

    The electronic digital computer is designed to solve systems involving a plurality of simultaneous linear equations. The computer can solve a system which converges rather rapidly when using Von Seidel's method of approximation and performs the summations required for solving for the unknown terms by a method of successive approximations.

  2. Digital data storage systems, computers, and data verification methods

    DOEpatents

    Groeneveld, Bennett J.; Austad, Wayne E.; Walsh, Stuart C.; Herring, Catherine A.

    2005-12-27

    Digital data storage systems, computers, and data verification methods are provided. According to a first aspect of the invention, a computer includes an interface adapted to couple with a dynamic database; and processing circuitry configured to provide a first hash from digital data stored within a portion of the dynamic database at an initial moment in time, to provide a second hash from digital data stored within the portion of the dynamic database at a subsequent moment in time, and to compare the first hash and the second hash.

  3. Digital computer operation of a nuclear reactor

    DOEpatents

    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.

  4. Digital computer operation of a nuclear reactor

    DOEpatents

    Colley, Robert W.

    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.

  5. Computer control raises welding from art to science: Inventions & Innovations success story

    SciTech Connect

    2000-02-01

    Fact sheet written for the Inventions and Innovation Program about a new welding control system that provides precise, effective welds and documents weld integrity.

  6. Portable Digital Radiography and Computed Tomography Manual

    SciTech Connect

    Not Available

    2007-11-01

    This user manual describes the function and use of the portable digital radiography and computed tomography (DRCT) scanner. The manual gives a general overview of x-ray imaging systems along with a description of the DRCT system. An inventory of the all the system components, organized by shipping container, is also included. In addition, detailed, step-by-step procedures are provided for all of the exercises necessary for a novice user to successfully collect digital radiographs and tomographic images of an object, including instructions on system assembly and detector calibration and system alignment. There is also a short section covering the limited system care and maintenance needs. Descriptions of the included software packages, the DRCT Digital Imager used for system operation, and the DRCT Image Processing Interface used for image viewing and tomographic data reconstruction are given in the appendixes. The appendixes also include a cheat sheet for more experienced users, a listing of known system problems and how to mitigate them, and an inventory check-off sheet suitable for copying and including with the machine for shipment purposes.

  7. MULTIPLE INPUT BINARY ADDER EMPLOYING MAGNETIC DRUM DIGITAL COMPUTING APPARATUS

    DOEpatents

    Cooke-Yarborough, E.H.

    1960-12-01

    A digital computing apparatus is described for adding a plurality of multi-digit binary numbers. The apparatus comprises a rotating magnetic drum, a recording head, first and second reading heads disposed adjacent to the first and second recording tracks, and a series of timing signals recorded on the first track. A series of N groups of digit-representing signals is delivered to the recording head at time intervals corresponding to the timing signals, each group consisting of digits of the same significance in the numbers, and the signal series is recorded on the second track of the drum in synchronism with the timing signals on the first track. The multistage registers are stepped cyclically through all positions, and each of the multistage registers is coupled to the control lead of a separate gate circuit to open the corresponding gate at only one selected position in each cycle. One of the gates has its input coupled to the bistable element to receive the sum digit, and the output lead of this gate is coupled to the recording device. The inputs of the other gates receive the digits to be added from the second reading head, and the outputs of these gates are coupled to the adding register. A phase-setting pulse source is connected to each of the multistage registers individually to step the multistage registers to different initial positions in the cycle, and the phase-setting pulse source is actuated each N time interval to shift a sum digit to the bistable element, where the multistage register coupled to bistable element is operated by the phase- setting pulse source to that position in its cycle N steps before opening the first gate, so that this gate opens in synchronism with each of the shifts to pass the sum digits to the recording head.

  8. Digital Radiography and Computed Tomography (DRCT) Product Improvement Plan (PIP)

    SciTech Connect

    Tim Roney; Bob Pink; Karen Wendt; Robert Seifert; Mike Smith

    2010-12-01

    The Idaho National Laboratory (INL) has been developing and deploying x-ray inspection systems for chemical weapons containers for the past 12 years under the direction of the Project Manager for Non-Stockpile Chemical Materiel (PMNSCM). In FY-10 funding was provided to advance the capabilities of these systems through the DRCT (Digital Radiography and Computed Tomography) Product Improvement Plan (PIP), funded by the PMNSCM. The DRCT PIP identified three research tasks; end user study, detector evaluation and DRCT/PINS integration. Work commenced in February, 2010. Due to the late start and the schedule for field inspection of munitions at various sites, it was not possible to spend sufficient field time with operators to develop a complete end user study. We were able to interact with several operators, principally Mr. Mike Rowan who provided substantial useful input through several discussions and development of a set of field notes from the Pueblo, CO field mission. We will be pursuing ongoing interactions with field personnel as opportunities arise in FY-11.

  9. College Students Digitize Records from Age Before Computers at Hanford Site

    Energy.gov [DOE]

    RICHLAND, Wash. – About 50 local college students hired for the summer by EM’s Richland Operations Office (RL) are cataloging human resources files to make documents from the pre-computer era available digitally.

  10. Computational Methods for Analyzing Fluid Flow Dynamics from Digital Imagery

    SciTech Connect

    Luttman, A.

    2012-03-30

    The main goal (long term) of this work is to perform computational dynamics analysis and quantify uncertainty from vector fields computed directly from measured data. Global analysis based on observed spatiotemporal evolution is performed by objective function based on expected physics and informed scientific priors, variational optimization to compute vector fields from measured data, and transport analysis proceeding with observations and priors. A mathematical formulation for computing flow fields is set up for computing the minimizer for the problem. An application to oceanic flow based on sea surface temperature is presented.

  11. Invention | GE Global Research

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

    Invention Our people drive every scientific advance we make, every day. Find out who they are and what they're thinking right now. Home > Invention Inventors GE Global Research Centers are home to many of the world's brightest, most inquisitive minds in science and technology. Meet our people » Stump the Scientist Ask us your question about science or technology. Then check back often to see what our scientists say! Leave them speechless » Edison's Desk Blog Curious about researchers'

  12. From Invention to Innovation

    SciTech Connect

    Rorke, M.

    2000-07-18

    The Inventions and Innovation Program, formerly known as ERIP (Energy-related Inventions Program), was established by the U.S. Congress in 1974. The program offers assistance to independent inventors and very small businesses engaged in developing new energy-saving technologies. The program remains clearly focused on energy generation and savings. The I&I Program funding is based on a competitive proposal process.

  13. Invent SRL | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Invent SRL Jump to: navigation, search Name: Invent SRL Place: Italy Product: Italian PV module maker. References: Invent SRL1 This article is a stub. You can help OpenEI by...

  14. SNOW: a digital computer program for the simulation of ion beam devices

    SciTech Connect

    Boers, J.E.

    1980-08-01

    A digital computer program, SNOW, has been developed for the simulation of dense ion beams. The program simulates the plasma expansion cup (but not the plasma source itself), the acceleration region, and a drift space with neutralization if desired. The ion beam is simulated by computing representative trajectories through the device. The potentials are simulated on a large rectangular matrix array which is solved by iterative techniques. Poisson's equation is solved at each point within the configuration using space-charge densities computed from the ion trajectories combined with background electron and/or ion distributions. The simulation methods are described in some detail along with examples of both axially-symmetric and rectangular beams. A detailed description of the input data is presented.

  15. An open-source computational and data resource to analyze digital maps of immunopeptidomes

    SciTech Connect

    Caron, Etienne; Espona, Lucia; Kowalewski, Daniel J.; Schuster, Heiko; Ternette, Nicola; Alpízar, Adán; Schittenhelm, Ralf B.; Ramarathinam, Sri H.; Lindestam Arlehamn, Cecilia S.; Chiek Koh, Ching; Gillet, Ludovic C.; Rabsteyn, Armin; Navarro, Pedro; Kim, Sangtae; Lam, Henry; Sturm, Theo; Marcilla, Miguel; Sette, Alessandro; Campbell, David S.; Deutsch, Eric W.; Moritz, Robert L.; Purcell, Anthony W.; Rammensee, Hans -Georg; Stevanovic, Stefan; Aebersold, Ruedi

    2015-07-08

    We present a novel mass spectrometry-based high-throughput workflow and an open-source computational and data resource to reproducibly identify and quantify HLA-associated peptides. Collectively, the resources support the generation of HLA allele-specific peptide assay libraries consisting of consensus fragment ion spectra, and the analysis of quantitative digital maps of HLA peptidomes generated from a range of biological sources by SWATH mass spectrometry (MS). This study represents the first community-based effort to develop a robust platform for the reproducible and quantitative measurement of the entire repertoire of peptides presented by HLA molecules, an essential step towards the design of efficient immunotherapies.

  16. An open-source computational and data resource to analyze digital maps of immunopeptidomes

    SciTech Connect

    Caron, Etienne; Espona, Lucia; Kowalewski, Daniel J.; Schuster, Heiko; Ternette, Nicola; Alpizar, Adan; Schittenhelm, Ralf B.; Ramarathinam, Sri Harsha; Lindestam-Arlehamn, Cecilia S.; Koh, Ching Chiek; Gillet, Ludovic; Rabsteyn, Armin; Navarro, Pedro; Kim, Sangtae; Lam, Henry; Sturm, Theo; Marcilla, Miguel; Sette, Alessandro; Campbell, David; Deutsch, Eric W.; Moritz, Robert L.; Purcell, Anthony; Rammensee, Hans-Georg; Stevanovic, Stevan; Aebersold, Ruedi

    2015-07-08

    We present a novel proteomics-based workflow and an open source data and computational resource for reproducibly identifying and quantifying HLA-associated peptides at high-throughput. The provided resources support the generation of HLA allele-specific peptide assay libraries consisting of consensus fragment ion spectra and the analysis of quantitative digital maps of HLA peptidomes generated by SWATH mass spectrometry (MS). This is the first community-based study towards the development of a robust platform for the reproducible and quantitative measurement of HLA peptidomes, an essential step towards the design of efficient immunotherapies.

  17. 1999 Inventions and Innovations Brochure

    SciTech Connect

    Squire, J.; Theis, K.

    1999-06-25

    The U.S. Department of Energy DOE's Inventions and Innovation (I&I) Program can help if you are an individual inventor or small business planning to develop your energy-saving invention or innovation. The program provides financial assistance at two levels and also offers technical guidance and commercialization support to successful applicants.

  18. Methods and systems for detecting abnormal digital traffic (Patent...

    Office of Scientific and Technical Information (OSTI)

    Methods and systems for detecting abnormal digital traffic Title: Methods and systems for detecting abnormal digital traffic Aspects of the present invention encompass methods and ...

  19. Scanning computed confocal imager

    DOEpatents

    George, John S.

    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.

  20. invention disclosures | Critical Materials Institute

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

    invention disclosures CMI Invention Disclosures Success for the Critical Materials Institute will be defined by how well it meets its mission to assure supply chains of materials critical to clean energy technologies. To enable innovation in U.S. manufacturing and to enhance U.S. energy security, CMI must develop, demonstrate, and deploy clean energy technology. To direct research in a way to minimize the time to discovery and the time between discovery and deployment, the CMI team includes both

  1. Digitally programmable signal generator and method

    SciTech Connect

    Priatko, G.J.; Kaskey, J.A.

    1986-09-02

    A digitally programmable signal generator (DPSG) and method are disclosed. The DPSG can be used in applications such as Atomic Vapor Laser Isotope Separation (AVLIS) to create an optimal match between the process laser's spectral profile and that of the vaporized material. Other applications include optical telecommunications, non-optical telecommunication in the microwave and radio spectrum, radar, electronic countermeasures, high speed computer interconnects, local area networks, high definition video transport and the multiplexing of large quantities of slow digital memory into high speed data streams. This invention extends the operation of DPSGs into the GHz range, while preserving all of the current art's DPSGs' operational features.

  2. invention | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    invention NNSA sites take home 15 R&D Awards R&D Magazine named 15 NNSA lab projects as winners in the 53rd annual R&D 100 Awards, which honor the 100 most innovative technologies and services of the past year. The winners were selected by an independent panel of more than 70 judges. The R&D 100 Awards are often referred to as the

  3. Multi-level security for computer networking: SAC digital network approach

    SciTech Connect

    Griess, W.; Poutre, D.L.

    1983-10-01

    For telecommunications systems simultaneously handling data of different security levels, multilevel secure (MLS) operation permits maximum use of resources by automatically providing protection to users with various clearances and needs-to-know. The strategic air command (SAC) is upgrading the primary record data system used to command and control its strategic forces. The upgrade, called the SAC Digital Network (SACDIN), is designed to provide multilevel security to support users and external interfaces, with allowed accesses ranging from unclassified to top secret. SACDIN implements a security kernel based upon the Bell and Lapadula security model. This study presents an overview of the SACDIN security architecture and describes the basic message flow across the MLS network. 7 references.

  4. Introduction of a Full-Duplex Digital CRCS With an LOM Computer

    SciTech Connect

    Jung-Han Nam; Chae-Ho Nam; Jong-Moo Lee; Han-Won Jung; Sim-Kyun Yook; Chang-Ho Cho [Doosan Heavy Industries and Construction Company, Ltd., 555, Guygok-dong Changwon-City, Kyongnam (Korea, Republic of)

    2006-07-01

    A Control Rod Control System (CRCS) is one of the most important pieces of equipment in a nuclear power plant because it controls the nuclear reaction by moving the Control Rod Drive Mechanism (CRDM) in the reactor with speed and direction signals from the Reactor Regulating System (RRS). This paper introduces a CRCS with full-duplex configuration and a Local Operator Module (LOM) computer to enhance reliability in comparison to existing simplex systems. The duplex configuration, LOM program, and maintenance test program of the CRCS are explained in detail. This duplex system can perform a fail-safe changeover in only a few milliseconds, which results in 'bump-less' CRDM coil current control. In particular, because all the control cards are hot-swappable and power converter modules are drawer type, the operator can replace a malfunctioning module without a system shutdown. For ease of operation, the CRCS has its own panel computer called Local Operator Module (LOM) which has a monitoring program installed. The LOM shows all the CRCS operating information such as urgent/non-urgent alarm status, controller operation status, CRDM coil voltage/current, data logs and detailed event alarms. In the CRCS power cabinet, there is an extra panel for easy and simple module maintenance. If the operator suspects that any module of a power cabinet such as a power control card or a power converter module is abnormal, he has only to place the module in the maintenance panel and run the test program to ascertain the module's sanity. The operator also can utilize the maintenance panel for spare module testing before the spare module is installed in the system and thus avoid installing a defective module. (authors)

  5. Better inventions together - CNS Program Integration and Engineering...

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

    Better inventions together ... Better inventions together - CNS Program Integration and Engineering Posted: October 14, 2015 - 5:26pm Dennis Miller (left) and Bill Barrett (right) ...

  6. The Spirit of Invention |GE Global Research

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

    The Spirit of Invention: Advanced Materials Inspired by Isaac Asimov Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) The Spirit of Invention: Advanced Materials Inspired by Isaac Asimov Christine M. Furstoss 2014.08.19 In August 1964, author Isaac Asimov wrote a piece in The New York Times, pegged to that summer's World

  7. Thomas Moore creates joint invention with MIT

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

    Thomas Moore creates joint invention with MIT 20 Nov 2009 For Arizona State University (ASU) Professor Thomas Moore, an invitation to guest lecture became a demonstration in a lab which led to a seafood lunch - which led to a joint invention with colleagues from the Massachusetts Institute of Technology (MIT) that contributed to a sustainable energy start-up company. Moore had been asked to speak at a summer course taught by well-known MIT Professor Daniel Nocera and, after the lecture, Moore

  8. The Telephone: An Invention with Many Fathers

    ScienceCinema

    Brenni, Paolo [CNR-FST-IMSS, Florence, Italy

    2016-07-12

    The names of A.G. Bell, A. Meucci, P.Reis, E. Gray, just to mention the most important ones, are all connected with the invention of the telephone. Today, the Italian inventor A. Meucci is recognized as being the first to propose a working prototype of the electric telephone. However, for a series of reasons his strenuous efforts were not rewarded. I will not repeat here the endless and complex disputes about the “real father” of the telephone. From an historical point of view it is more interesting to understand why so many individuals from different backgrounds conceived of a similar apparatus and why most of these devices were simply forgotten or just remained laboratory curiosities. The case of the development of the telephone is an emblematic and useful example for better understanding the intricate factors which are involved in the birth of an invention and reasons for its success and failure.

  9. The Telephone: An Invention with Many Fathers

    SciTech Connect

    Brenni, Paolo

    2008-10-01

    The names of A.G. Bell, A. Meucci, P.Reis, E. Gray, just to mention the most important ones, are all connected with the invention of the telephone. Today, the Italian inventor A. Meucci is recognized as being the first to propose a working prototype of the electric telephone. However, for a series of reasons his strenuous efforts were not rewarded. I will not repeat here the endless and complex disputes about the 'real father' of the telephone. From an historical point of view it is more interesting to understand why so many individuals from different backgrounds conceived of a similar apparatus and why most of these devices were simply forgotten or just remained laboratory curiosities. The case of the development of the telephone is an emblematic and useful example for better understanding the intricate factors which are involved in the birth of an invention and reasons for its success and failure.

  10. Computer-aided detection of clustered microcalcifications in multiscale bilateral filtering regularized reconstructed digital breast tomosynthesis volume

    SciTech Connect

    Samala, Ravi K. Chan, Heang-Ping; Lu, Yao; Hadjiiski, Lubomir; Wei, Jun; Helvie, Mark A.; Sahiner, Berkman

    2014-02-15

    Purpose: Develop a computer-aided detection (CADe) system for clustered microcalcifications in digital breast tomosynthesis (DBT) volume enhanced with multiscale bilateral filtering (MSBF) regularization. Methods: With Institutional Review Board approval and written informed consent, two-view DBT of 154 breasts, of which 116 had biopsy-proven microcalcification (MC) clusters and 38 were free of MCs, was imaged with a General Electric GEN2 prototype DBT system. The DBT volumes were reconstructed with MSBF-regularized simultaneous algebraic reconstruction technique (SART) that was designed to enhance MCs and reduce background noise while preserving the quality of other tissue structures. The contrast-to-noise ratio (CNR) of MCs was further improved with enhancement-modulated calcification response (EMCR) preprocessing, which combined multiscale Hessian response to enhance MCs by shape and bandpass filtering to remove the low-frequency structured background. MC candidates were then located in the EMCR volume using iterative thresholding and segmented by adaptive region growing. Two sets of potential MC objects, cluster centroid objects and MC seed objects, were generated and the CNR of each object was calculated. The number of candidates in each set was controlled based on the breast volume. Dynamic clustering around the centroid objects grouped the MC candidates to form clusters. Adaptive criteria were designed to reduce false positive (FP) clusters based on the size, CNR values and the number of MCs in the cluster, cluster shape, and cluster based maximum intensity projection. Free-response receiver operating characteristic (FROC) and jackknife alternative FROC (JAFROC) analyses were used to assess the performance and compare with that of a previous study. Results: Unpaired two-tailedt-test showed a significant increase (p < 0.0001) in the ratio of CNRs for MCs with and without MSBF regularization compared to similar ratios for FPs. For view-based detection, a

  11. Department of Energy Record of Invention Form | Department of...

    Energy.gov [DOE] (indexed site)

    DOE Form GC-213 (2-78) DOE PR-9-9 U.S. Department of Energy Office of Assistant General Counsel for Patents Record of Invention Record Of Invention Form (18.95 KB) More Documents & ...

  12. EERE Success Story-EERE National Laboratories' Inventions Take...

    Energy Saver

    EERE National Laboratories' Inventions Take Home Nine R&D 100 Awards EERE Success Story-EERE National Laboratories' Inventions Take Home Nine R&D 100 Awards February 10, 2016 - ...

  13. Breakthrough EERE National Laboratory Inventions Take Home Nine...

    Energy Saver

    Breakthrough EERE National Laboratory Inventions Take Home Nine R&D 100 Awards Breakthrough EERE National Laboratory Inventions Take Home Nine R&D 100 Awards December 10, 2015 - ...

  14. 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...

  15. Digital gate pulse generator for cycloconverter control

    DOEpatents

    Klein, Frederick F.; Mutone, Gioacchino A.

    1989-01-01

    The present invention provides a digital gate pulse generator which controls the output of a cycloconverter used for electrical power conversion applications by determining the timing and delivery of the firing pulses to the switching devices in the cycloconverter. Previous gate pulse generators have been built with largely analog or discrete digital circuitry which require many precision components and periodic adjustment. The gate pulse generator of the present invention utilizes digital techniques and a predetermined series of values to develop the necessary timing signals for firing the switching device. Each timing signal is compared with a reference signal to determine the exact firing time. The present invention is significantly more compact than previous gate pulse generators, responds quickly to changes in the output demand and requires only one precision component and no adjustments.

  16. Computing

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

    Computing and Storage Requirements Computing and Storage Requirements for FES J. Candy General Atomics, San Diego, CA Presented at DOE Technical Program Review Hilton Washington DC/Rockville Rockville, MD 19-20 March 2013 2 Computing and Storage Requirements Drift waves and tokamak plasma turbulence Role in the context of fusion research * Plasma performance: In tokamak plasmas, performance is limited by turbulent radial transport of both energy and particles. * Gradient-driven: This turbulent

  17. Computing

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

    Computing Computing Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of strategic national interest. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets Since 1978 Los Alamos has won 137 of the prestigious R&D 100 Awards. Los Alamos honored for industry collaboration in 2016 HPCwire Awards Los Alamos National Laboratory has been recognized for the Lab's collaboration with

  18. computers

    National Nuclear Security Administration (NNSA)

    California.

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

  19. Better inventions together - CNS Program Integration and Engineering |

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

    Y-12 National Security Complex Better inventions together ... Better inventions together - CNS Program Integration and Engineering Posted: October 14, 2015 - 5:26pm Dennis Miller (left) and Bill Barrett (right) market Y-12's unique inventions by Lee Bzorgi (center, inventor). About five years ago, CNS's Program Integration and Engineering organizations joined forces to build a robust collaboration. Together, the diverse team has produced technologies ranging in size from a pager to a

  20. The present invention relates to automated methods of introducing...

    Office of Scientific and Technical Information (OSTI)

    The present invention relates to automated methods of introducing multiple nucleic acid sequences into one or more target cells. Authors: Church, George M. 1 ; Wang, Harris H. ...

    1. Versatile polymer film synthesis method invented > Archived News...

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

      Bus 2 Cornellians receive Distinguished Scholar Award Versatile polymer film synthesis method invented In This Section EMC2 News Archived News Stories Versatile...

    2. Microtube strip heat exchanger: Inventions and Innovations Project fact sheet

      SciTech Connect

      NREL

      1999-12-14

      Fact sheet written for the Inventions and Innovation Program about a new heat exchanger design that increases efficiency while reducing costs.

    3. PowerGuard{reg_sign}; Inventions and Innovation Success Story

      SciTech Connect

      2000-10-30

      Success story written for the Inventions and Innovation Program about a new photovoltaic technology designed specifically for flat or nearly flat-roofed buildings.

    4. Computing

      U.S. Department of Energy (DOE) - all 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

    5. Commercial progress and impacts of inventions and innovations

      SciTech Connect

      Perlack, R.D.; Rizy, C.G.; Franchuk, C.A.; Cohn, S.M.

      1999-08-01

      This report presents the survey results from the 1997 inventions and innovations evaluation questionnaire. The evaluation impacts are based on responses from 136 out of 334 inventors sent the questionnaire. In 1996, there were 67 inventions identified that currently have direct, licensed, or spinoff sales. In total, the number of inventions and innovations with current sales and past sales (now retired from the market) is 144. This represents a commercial success rate of over 27%. For these grant-receiving inventions, the following performance metrics are of interest: (1) total cumulative direct and licensed sales through 1996 were $700 million (1995$), in addition, cumulative spinoff sales and royalties were $90 million and $20 million (1995$) through 1996, respectively; (2) employment sustained by direct and licensed sales was 1,189 full-time equivalents in 1996, employment attributable to technologies with no sales was 90 full-time equivalents, and the annual federal income taxes collected as a result of this employment was in excess of $6 million; and (3) energy savings attribute to supported inventions and innovations were estimated at 78 trillion Btu in 1996 with an estimated value of nearly $190 million (1995$), the associated reduction in carbon emissions was over 1.5 million metric tons. In terms of future commercialization progress and impacts, the 1997 survey revealed that 60% of the respondents are actively pursuing their invention, and nearly 50% of the inventions are in the prototype development, pre-production prototype testing, and pre-production development stages.

    6. User's manual for RATEPAC: a digital-computer program for revenue requirements and rate-impact analysis

      SciTech Connect

      Fuller, L.C.

      1981-09-01

      The RATEPAC computer program is designed to model the financial aspects of an electric power plant or other investment requiring capital outlays and having annual operating expenses. The program produces incremental pro forma financial statements showing how an investment will affect the overall financial statements of a business entity. The code accepts parameters required to determine capital investment and expense as a function of time and sums these to determine minimum revenue requirements (cost of service). The code also calculates present worth of revenue requirements and required return on rate base. This user's manual includes a general description of the code as well as the instructions for input data preparation. A complete example case is appended.

    7. Taking inventions from idea to reality | GE Global Research

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

      do inventions go from idea to reality? Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) How do inventions go from idea to reality? GE Global Research's Danielle Merfeld talked to GE's Creator-in-Residence Sally LePage about what it takes to move an invention from an idea to a reality. In this video, LePage talks about

    8. Battery, heal thyself: Inventing self-repairing batteries | Argonne...

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

      Battery, heal thyself: Inventing self-repairing batteries By Louise Lerner * January 11, 2012 Tweet EmailPrint Imagine dropping your phone on the hard concrete sidewalk-but when...

    9. 4 Energy Department Inventions Saving Consumers Energy and Money |

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

      Department of Energy 4 Energy Department Inventions Saving Consumers Energy and Money 4 Energy Department Inventions Saving Consumers Energy and Money Addthis Loose-Fill Fiberglass Insulation 1 of 4 Loose-Fill Fiberglass Insulation In 1992, private insulation manufacturer Energy Savings Solutions, Inc., reached out to Oak Ridge National Laboratory to find ways to improve loose-fill fiberglass insulation. Oak Ridge researchers provided the guidance necessary to substantially improve the

    10. First License for a CMI Invention | Critical Materials Institute

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

      First License for a CMI Invention diagram of membrane solvent extraction system developed by CMI researchers Diagram of membrane solvent extraction system developed by CMI researchers at ORNL and INL. The first license for a CMI invention was granted for a recycling process developed by CMI researchers at Oak Ridge National Laboratory and Idaho National Laboratory. They have applied for a patent for "Membrane Solvent Extraction for Rare Earth Separations." Official news release from

    11. NETL Inventions Earn 2009 Technology Transfer Awards | Department of Energy

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

      Inventions Earn 2009 Technology Transfer Awards NETL Inventions Earn 2009 Technology Transfer Awards February 13, 2009 - 12:00pm Addthis Washington, DC -- Two technologies developed by researchers at the Office of Fossil Energy's National Energy Technology Laboratory (NETL) have earned 2009 Excellence in Technology Transfer Awards from the Federal Laboratory Consortium for Technology Transfer (FLC). Both technologies enable the cleaner use of coal for electricity production and have been

    12. Clean Energy Inventions and Achieving Scale; CEIC Engages Future Investors

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

      of the World at the Duke Fuqua School of Business EDGE Seminar | Department of Energy Inventions and Achieving Scale; CEIC Engages Future Investors of the World at the Duke Fuqua School of Business EDGE Seminar Clean Energy Inventions and Achieving Scale; CEIC Engages Future Investors of the World at the Duke Fuqua School of Business EDGE Seminar September 26, 2016 - 5:01pm Addthis CEIC Director Sanjiv Malhotra speaking at Duke University's EDGE Seminar (credit CEIC/OTT). CEIC Director

    13. NREL Invention Speeds Solar Cell Quality Testing for Industry

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

      Invention Speeds Solar Cell Quality Testing for Industry A solid-state optical system, invented by the National Renewable Energy Laboratory (NREL), measures solar cell quantum efficiency (QE) in less than a second, enabling a suite of new capabilities for solar cell manufacturers. The system was developed with funding in part by the Office of Energy Efficiency and Renewable Energy within the U.S. Department of Energy. QE is a measurement of how cells respond to light across the solar spectrum,

    14. Jefferson Lab Tech Associate Invents Lockout Device for Equipment with

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

      Removable Power Cords | Jefferson Lab Tech Associate Invents Lockout Device for Equipment with Removable Power Cords Jefferson Lab Tech Associate Invents Lockout Device for Equipment with Removable Power Cords April 22, 2002 It was the early 1990s and building Jefferson Lab's Continuous Electron Beam Accelerator was in high gear. The Accelerator Division was busy installing some 30 vacuum ion pumps in the tunnel. Simultaneously, above ground in the long, low service buildings sitting over

    15. Digital electronic bone growth stimulator

      DOEpatents

      Kronberg, J.W.

      1993-01-01

      The present invention relates to the electrical treatment of biological tissue. In particular, the present invention discloses a device that produces discrete electrical pulse trains for treating osteoporosis and accelerating bone growth. According to its major aspects and broadly stated, the present invention consists of an electrical circuit configuration capable of generating Bassett-type waveforms shown with alternative signals provide for the treatment of either fractured bones or osteoporosis. The signal generator comprises a quartz clock, an oscillator circuit, a binary divider chain, and a plurality of simple, digital logic gates. Signals are delivered efficiently, with little or no distortion, and uniformly distributed throughout the area of injury. Perferably, power is furnished by widely available and inexpensive radio batteries, needing replacement only once in several days. The present invention can be affixed to a medical cast without a great increase in either weight or bulk. Also, the disclosed stimulator can be used to treat osteoporosis or to strengthen a healing bone after the cast has been removed by attaching the device to the patient`s skin or clothing.

    16. Digital optical conversion module

      DOEpatents

      Kotter, Dale K.; Rankin, Richard A.

      1991-02-26

      A digital optical conversion module used to convert an analog signal to a computer compatible digital signal including a voltage-to-frequency converter, frequency offset response circuitry, and an electrical-to-optical converter. Also used in conjunction with the digital optical conversion module is an optical link and an interface at the computer for converting the optical signal back to an electrical signal. Suitable for use in hostile environments having high levels of electromagnetic interference, the conversion module retains high resolution of the analog signal while eliminating the potential for errors due to noise and interference. The module can be used to link analog output scientific equipment such as an electrometer used with a mass spectrometer to a computer.

    17. Digital optical conversion module

      DOEpatents

      Kotter, D.K.; Rankin, R.A.

      1988-07-19

      A digital optical conversion module used to convert an analog signal to a computer compatible digital signal including a voltage-to-frequency converter, frequency offset response circuitry, and an electrical-to-optical converter. Also used in conjunction with the digital optical conversion module is an optical link and an interface at the computer for converting the optical signal back to an electrical signal. Suitable for use in hostile environments having high levels of electromagnetic interference, the conversion module retains high resolution of the analog signal while eliminating the potential for errors due to noise and interference. The module can be used to link analog output scientific equipment such as an electrometer used with a mass spectrometer to a computer. 2 figs.

    18. Digital Image Correlation Engine

      SciTech Connect

      Turner, Dan; Crozier, Paul; Reu, Phil

      2015-10-06

      DICe is an open source digital image correlation (DIC) tool intended for use as a module in an external application or as a standalone analysis code. It's primary capability is computing full –field displacements and strains from sequences of digital These images are typically of a material sample undergoing a materials characterization experiment, but DICe is also useful for other applications (for example, trajectory tracking). DICe is machine portable (Windows, Linux and Mac) and can be effectively deployed on a high performance computing platform. Capabilities from DICe can be invoked through a library interface, via source code integration of DICe classes or through a graphical user interface.

    19. EERE Success Story-EERE National Laboratories' Inventions Take Home

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

      Nine R&D 100 Awards | Department of Energy National Laboratories' Inventions Take Home Nine R&D 100 Awards EERE Success Story-EERE National Laboratories' Inventions Take Home Nine R&D 100 Awards February 10, 2016 - 10:44am Addthis The 53rd R&D 100 Awards ceremony took place at the end of 2015 in Las Vegas, Nevada. Going all the way back to 1963, these prestigious awards have identified and honored significant major technological breakthroughs every year. At the Department of

    20. Data Acquisition Scan for Large Area Flat Panel Digital X-ray Detector Array

      Energy Science and Technology Software Center

      2004-05-01

      Interface large area flat panel digital detector and motion control system for computed tomographic data acquisition.

    1. Digital Mapping Of Structurally Controlled Geothermal Features...

      OpenEI (Open Energy Information) [EERE & EIA]

      GPS Units And Pocket Computers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Digital Mapping Of Structurally Controlled Geothermal Features...

    2. BETO-Funded Invention Wins R&D 100 Award

      Energy.gov [DOE]

      Oak Ridge National Laboratory (ORNL) researchers won an R&D Magazine R&D 100 award this month for their Bioenergy Technologies Office-funded invention of a new class of membranes that could help reduce the price of bio-ethanol, ethanol-gasoline blend fuels, and drop-in fuels from bio-oil processing.

    3. Argonne researchers develop two new diamond inventions | Argonne National

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

      Laboratory develop two new diamond inventions By Jared Sagoff * October 10, 2014 Tweet EmailPrint ARGONNE, IL - Researchers at the US Department of Energy's Argonne National Laboratory have continued their research into advanced ultrananocrystalline diamond technologies and have developed two new applications for this special material. Ultrananocrystalline diamond (UNCD) thin films have shown a great deal of promise in the semiconductor and microelectromechanical systems (MEMS) industries.

    4. Computing Videos

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

      Computing Videos Computing

    5. FDA Approves Drug for Type 2 Diabetes Invented with Aid of Protein...

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

      FDA Approves Drug for Type 2 Diabetes Invented with Aid of Protein Structure Data Taken at ALS FDA Approves Drug for Type 2 Diabetes Invented with Aid of Protein Structure Data...

    6. J-Lab scientist wins award for graphene invention he developed...

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

      wm.eduresearchideationscience-and-technologyj-lab-scientist-wins-award-for-graphene-invention6812.php Submitted: Thursday, June 1...

    7. Brazing and spot welding innovations for joining aluminum alloys: Inventions and Innovation Aluminum Project Fact Sheet

      SciTech Connect

      NREL

      2000-04-10

      Fact sheet written for the Inventions and Innovation Program about a new technology for brazing and spot welding.

    8. A high intensity solar cell invention: The edge-illuminated vertical multi-junction (VNJ) solar cell

      SciTech Connect

      Sater, B.L.

      1992-08-07

      This report contains a summary of a High Intensity Solar Cell (HI Cell) development carried out under the NIST/DOE Energy-Related Invention Program. The HI Cell, or Edge-Illuminated vertical Multi-junction Solar Cell, eliminates most major problems encountered with other concentrator solar cell designs. Its high voltage and low series resistance features make it ideally suited for efficient operation at high intensities. Computer modeling shows efficiencies near 30% at 500 suns intensity are possible with state-of-art processing. Development of a working model was largely successful before encountering an unexpected problem during the last fabrication step with the anti-reflection coating. Unfortunately, funding was exhausted before its resolution. Recommendations are made to resolve the AR coating problem and to integrate all the knowledge gained during this development into a viable prototype model. The invention will provide the technical and economic performance needed to make photovoltaic systems cost-effective for wide use.

    9. A high intensity solar cell invention: The edge-illuminated vertical multi-junction (VNJ) solar cell. Final report

      SciTech Connect

      Sater, B.L.

      1992-08-07

      This report contains a summary of a High Intensity Solar Cell (HI Cell) development carried out under the NIST/DOE Energy-Related Invention Program. The HI Cell, or Edge-Illuminated vertical Multi-junction Solar Cell, eliminates most major problems encountered with other concentrator solar cell designs. Its high voltage and low series resistance features make it ideally suited for efficient operation at high intensities. Computer modeling shows efficiencies near 30% at 500 suns intensity are possible with state-of-art processing. Development of a working model was largely successful before encountering an unexpected problem during the last fabrication step with the anti-reflection coating. Unfortunately, funding was exhausted before its resolution. Recommendations are made to resolve the AR coating problem and to integrate all the knowledge gained during this development into a viable prototype model. The invention will provide the technical and economic performance needed to make photovoltaic systems cost-effective for wide use.

    10. Digital Image Correlation Engine

      Energy Science and Technology Software Center

      2015-10-06

      DICe is an open source digital image correlation (DIC) tool intended for use as a module in an external application or as a standalone analysis code. It's primary capability is computing full –field displacements and strains from sequences of digital These images are typically of a material sample undergoing a materials characterization experiment, but DICe is also useful for other applications (for example, trajectory tracking). DICe is machine portable (Windows, Linux and Mac) and canmore » be effectively deployed on a high performance computing platform. Capabilities from DICe can be invoked through a library interface, via source code integration of DICe classes or through a graphical user interface.« less

    11. Computer-aided engineering system for design of sequence arrays and lithographic masks

      DOEpatents

      Hubbell, Earl A.; Lipshutz, Robert J.; Morris, Macdonald S.; Winkler, James L.

      1997-01-01

      An improved set of computer tools for forming arrays. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks.

    12. Computer memory management system

      DOEpatents

      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.

    13. RATIO COMPUTER

      DOEpatents

      Post, R.F.

      1958-11-11

      An electronic computer circuit is described for producing an output voltage proportional to the product or quotient of tbe voltages of a pair of input signals. ln essence, the disclosed invention provides a computer having two channels adapted to receive separate input signals and each having amplifiers with like fixed amplification factors and like negatlve feedback amplifiers. One of the channels receives a constant signal for comparison purposes, whereby a difference signal is produced to control the amplification factors of the variable feedback amplifiers. The output of the other channel is thereby proportional to the product or quotient of input signals depending upon the relation of input to fixed signals in the first mentioned channel.

    14. Digital field ion microscopy

      SciTech Connect

      Sijbrandij, S.J.; Russell, K.F.; Miller, M.K.; Thomson, R.C.

      1998-01-01

      Due to environmental concerns, there is a trend to avoid the use of chemicals needed to develop negatives and to process photographic paper, and to use digital technologies instead. Digital technology also offers the advantages that it is convenient, as it enables quick access to the end result, allows image storage and processing on computer, allows rapid hard copy output, and simplifies electronic publishing. Recently significant improvements have been made to the performance and cost of camera-sensors and printers. In this paper, field ion images recorded with two digital cameras of different resolution are compared to images recorded on standard 35 mm negative film. It should be noted that field ion images exhibit low light intensity and high contrast. Field ion images were recorded from a standard microchannel plate and a phosphor screen and had acceptance angles of {approximately} 60{degree}. Digital recordings were made with a Digital Vision Technologies (DVT) MICAM VHR1000 camera with a resolution of 752 x 582 pixels, and a Kodak DCS 460 digital camera with a resolution of 3,060 x 2,036 pixels. Film based recordings were made with Kodak T-MAX film rated at 400 ASA. The resolving power of T-MAX film, as specified by Kodak, is between 50 and 125 lines per mm, which corresponds to between 1,778 x 1,181 and 4,445 x 2,953 pixels, i.e. similar to that from the DCS 460 camera. The intensities of the images were sufficient to be recorded with standard fl:1.2 lenses with exposure times of less than 2 s. Many digital cameras were excluded from these experiments due to their lack of sensitivity or the inability to record a full frame image due to the fixed working distance defined by the vacuum system. The digital images were output on a Kodak Digital Science 8650 PS dye sublimation color printer (300 dpi). All field ion micrographs presented were obtained from a Ni-Al-Be specimen.

    15. Innovation 101: The story behind the invention of DNATrax

      SciTech Connect

      Farquar, George

      2015-03-05

      Lawrence Livermore researcher George Farquar shares the story behind the invention of DNATrax, a cost-effective and highly efficient method to accurately trace contaminated food back to its source. Foodborne illnesses kill roughly 3,000 Americans each year and about 1 in 6 are sickened, according to the Centers for Disease Control and Prevention. Yet most contaminated foods are never traced back to their source. That’s because existing methods to track tainted food following its supply chain from table to farm are highly inefficient, jeopardizing the health of millions and costing the food industry billions. A typical process to trace food includes interviewing consumers and suppliers and examining every detail of the supply chain, a tedious method that takes weeks at best to complete.

    16. Metrological digital audio reconstruction

      DOEpatents

      Fadeyev; Vitaliy , Haber; Carl

      2004-02-19

      Audio information stored in the undulations of grooves in a medium such as a phonograph record may be reconstructed, with little or no contact, by measuring the groove shape using precision metrology methods coupled with digital image processing and numerical analysis. The effects of damage, wear, and contamination may be compensated, in many cases, through image processing and analysis methods. The speed and data handling capacity of available computing hardware make this approach practical. Two examples used a general purpose optical metrology system to study a 50 year old 78 r.p.m. phonograph record and a commercial confocal scanning probe to study a 1920's celluloid Edison cylinder. Comparisons are presented with stylus playback of the samples and with a digitally re-mastered version of an original magnetic recording. There is also a more extensive implementation of this approach, with dedicated hardware and software.

    17. UNIFORM PATENT POLICY FOR RIGHTS IN INVENTIONS MADE BY GOVERNMENT EMPLOYEES

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

      | Department of Energy UNIFORM PATENT POLICY FOR RIGHTS IN INVENTIONS MADE BY GOVERNMENT EMPLOYEES UNIFORM PATENT POLICY FOR RIGHTS IN INVENTIONS MADE BY GOVERNMENT EMPLOYEES The purpose of this part is to provide for the administration of a uniform patent policy for the Government with respect to the rights in inventions made by Government employees and to prescribe rules and regulations for implementing and effectuating such policy. (306.26 KB) More Documents & Publications DOE F 280.1

    18. Centralized digital control of accelerators

      SciTech Connect

      Melen, R.E.

      1983-09-01

      In contrasting the title of this paper with a second paper to be presented at this conference entitled Distributed Digital Control of Accelerators, a potential reader might be led to believe that this paper will focus on systems whose computing intelligence is centered in one or more computers in a centralized location. Instead, this paper will describe the architectural evolution of SLAC's computer based accelerator control systems with respect to the distribution of their intelligence. However, the use of the word centralized in the title is appropriate because these systems are based on the use of centralized large and computationally powerful processors that are typically supported by networks of smaller distributed processors.

    19. Early-Warning Device for Prevention of Destructive Arc Faults; Inventions and Innovation Project Fact Sheet

      SciTech Connect

      2000-10-30

      Fact sheet written for the Inventions and Innovation Program about a new early-warning device for detecting destructive arc faults before they occur.

    20. Self-Agitating Soap Stick: Inventions and Innovation Petroleum Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a self-agitating soap stick that removes accumulated water from water logged natural gas wells.

    1. Auxiliary power unit offers powerful savings: Inventions and innovation success story fact sheet

      SciTech Connect

      2000-06-19

      This is a fact sheet written for the Inventions and Innovation Program about a new auxiliary power unit for use in the long-haul trucking industry.

    2. Dual Fuel Conversion System for Diesel Engines: Inventions and Innovation Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a new dual fuel conversion system allows diesel fuel switching with clean burning natural gas.

    3. Highly Efficient Rapid Tooling Using Optimized Cooling Passages: Inventions and Innovation Metalcasting Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a rapid-prototyping process that improves investment casting technologies by repositioning cooling channels.

    4. Distillation Column Flooding Predictor: Inventions and Innovations Petroleum Project Fact Sheet

      SciTech Connect

      New Horizon Technologies

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about an innovative technology for predicting and avoiding liquid and jet flooding in the petroleum refining process.

    5. New technology keeps companies and consumers in hot water: Inventions and innovation success story (Fact Sheet)

      SciTech Connect

      2000-06-19

      This is a fact sheet written for the Inventions and Innovation Program about a new counterflow heat exchanger that recycles hot water energy from waste hot water.

    6. Coal log fuel pipeline transportation system: Invention and innovations project fact sheet

      SciTech Connect

      NREL

      1999-12-14

      This is a fact sheet written for the Inventions and Innovation Program about a new way to compact and deliver coal and other materials through pipelines.

    7. Miniature, Inexpensive, Amperometric Oxygen Sensor: Inventions and Innovation Sensors and Controls Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a new miniature oxygen sensor that costs less that conventional sensors.

    8. Low-Frequency Sonic Mixing Technology: Inventions and Innovation Chemicals Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about an innovative device that uses acoustic energy to enhance productivity in mixing equipment.

    9. Clean production of coke from waste carbonaceous fines: Inventions and innovation steel project fact sheet

      SciTech Connect

      NREL

      2000-04-10

      This report is a fact sheet written for the Inventions and Innovation Program about a new process for manufacturing metallurgical grade coke briquettes for the steel industry.

    10. Replacement of Thermally Produced Calcined Clay; Inventions and Innovation Forest Products Project Fact Sheet

      SciTech Connect

      2000-10-30

      Project fact sheet written for the Inventions and Innovation Program about a new technology that saves energy by replacing calcined clay used in paper manufacturing.

    11. Jefferson Lab Groups Encourage Digital Literacy Through Worldwide...

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

      To raise awareness of the need for digital literacy and a basic understanding of computer science, Jefferson Lab's Information Technology Division and Science Education staff are ...

    12. Axial Tomography from Digitized Real Time Radiography

      DOE R&D Accomplishments

      Zolnay, A. S.; McDonald, W. M.; Doupont, P. A.; McKinney, R. L.; Lee, M. M.

      1985-01-18

      Axial tomography from digitized real time radiographs provides a useful tool for industrial radiography and tomography. The components of this system are: x-ray source, image intensifier, video camera, video line extractor and digitizer, data storage and reconstruction computers. With this system it is possible to view a two dimensional x-ray image in real time at each angle of rotation and select the tomography plane of interest by choosing which video line to digitize. The digitization of a video line requires less than a second making data acquisition relatively short. Further improvements on this system are planned and initial results are reported.

    13. Digital Sofcell Digital Ultracap joint venture | Open Energy...

      OpenEI (Open Energy Information) [EERE & EIA]

      Ultracap joint venture Jump to: navigation, search Name: Digital Sofcell - Digital Ultracap joint venture Product: Digital Sofcell will joint venture with Digital Ultracap to...

    14. Fast computational methods for predicting protein structure from primary

      Office of Scientific and Technical Information (OSTI)

      amino acid sequence (Patent) | DOEPatents Fast computational methods for predicting protein structure from primary amino acid sequence Title: Fast computational methods for predicting protein structure from primary amino acid sequence The present invention provides a method utilizing primary amino acid sequence of a protein, energy minimization, molecular dynamics and protein vibrational modes to predict three-dimensional structure of a protein. The present invention also determines possible

    15. Digital slip frequency generator and method for determining the desired slip frequency

      DOEpatents

      Klein, Frederick F.

      1989-01-01

      The output frequency of an electric power generator is kept constant with variable rotor speed by automatic adjustment of the excitation slip frequency. The invention features a digital slip frequency generator which provides sine and cosine waveforms from a look-up table, which are combined with real and reactive power output of the power generator.

    16. JGI Digital Scavenger Hunt

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

      JGI Digital Scavenger Hunt JGI Digital Scavenger Hunt The NERSC webpages are a great resource for New and Old users, so this is the first stop on the JGI Digital Scavenger Hunt....

    17. Dedicated breast computed tomography: Basic aspects

      SciTech Connect

      Sarno, Antonio; Mettivier, Giovanni Russo, Paolo

      2015-06-15

      X-ray mammography of the compressed breast is well recognized as the “gold standard” for early detection of breast cancer, but its performance is not ideal. One limitation of screening mammography is tissue superposition, particularly for dense breasts. Since 2001, several research groups in the USA and in the European Union have developed computed tomography (CT) systems with digital detector technology dedicated to x-ray imaging of the uncompressed breast (breast CT or BCT) for breast cancer screening and diagnosis. This CT technology—tracing back to initial studies in the 1970s—allows some of the limitations of mammography to be overcome, keeping the levels of radiation dose to the radiosensitive breast glandular tissue similar to that of two-view mammography for the same breast size and composition. This paper presents an evaluation of the research efforts carried out in the invention, development, and improvement of BCT with dedicated scanners with state-of-the-art technology, including initial steps toward commercialization, after more than a decade of R and D in the laboratory and/or in the clinic. The intended focus here is on the technological/engineering aspects of BCT and on outlining advantages and limitations as reported in the related literature. Prospects for future research in this field are discussed.

    18. The present invention relates to automated methods of introducing multiple nucleic acid sequences into one or more target cells.

      DOEpatents

      Church, George M.; Wang, Harris H.; Isaacs, Farren J.

      2012-04-10

      The present invention relates to automated methods of introducing multiple nucleic acid sequences into one or more target cells.

    19. High-Speed Permanent Magnet Motor Development for Advanced Cooling Technology; Inventions and Innovation Project Fact Sheet

      SciTech Connect

      2000-10-30

      Fact sheet written for the Inventions and Innovation Program about a new use of permanent magnet technology in motors.

    20. Tribopolymerization as an antiwear mechanism: Inventions and innovations project fact sheet

      SciTech Connect

      NREL

      2000-02-01

      This is a fact sheet written for the Inventions and Innovation Program about a new technology that uses the concept of tribopolymerization to create perpetually renewing films on surfaces.

    1. Invention and History of the Bubble Chamber (LBNL Summer Lecture Series)

      ScienceCinema

      Glaser, Don

      2016-07-12

      Summer Lecture Series 2006: Don Glaser won the 1960 Nobel Prize for Physics for his 1952 invention of the bubble chamber at Berkeley Lab, a type of particle detector that became the mainstay of high-energy physics research throughout the 1960s and 1970s. He discusses how, inspired by bubbles in a glass of beer, he invented the bubble chamber and detected cosmic-ray muons.

    2. Top 4 Energy Department Inventions Saving You Energy & Money at Home |

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

      Department of Energy 4 Energy Department Inventions Saving You Energy & Money at Home Top 4 Energy Department Inventions Saving You Energy & Money at Home April 15, 2014 - 12:16pm Addthis Loose-Fill Fiberglass Insulation 1 of 4 Loose-Fill Fiberglass Insulation In 1992, private insulation manufacturer Energy Savings Solutions, Inc., reached out to Oak Ridge National Laboratory to find ways to improve loose-fill fiberglass insulation. Oak Ridge researchers provided the guidance

    3. Invention and History of the Bubble Chamber (LBNL Summer Lecture Series)

      SciTech Connect

      Glaser, Don

      2006-07-12

      Summer Lecture Series 2006: Don Glaser won the 1960 Nobel Prize for Physics for his 1952 invention of the bubble chamber at Berkeley Lab, a type of particle detector that became the mainstay of high-energy physics research throughout the 1960s and 1970s. He discusses how, inspired by bubbles in a glass of beer, he invented the bubble chamber and detected cosmic-ray muons.

    4. Method and apparatus for automatically detecting patterns in digital point-ordered signals

      DOEpatents

      Brudnoy, D.M.

      1998-10-20

      The present invention is a method and system for detecting a physical feature of a test piece by detecting a pattern in a signal representing data from inspection of the test piece. The pattern is detected by automated additive decomposition of a digital point-ordered signal which represents the data. The present invention can properly handle a non-periodic signal. A physical parameter of the test piece is measured. A digital point-ordered signal representative of the measured physical parameter is generated. The digital point-ordered signal is decomposed into a baseline signal, a background noise signal, and a peaks/troughs signal. The peaks/troughs from the peaks/troughs signal are located and peaks/troughs information indicating the physical feature of the test piece is output. 14 figs.

    5. Method and apparatus for automatically detecting patterns in digital point-ordered signals

      DOEpatents

      Brudnoy, David M.

      1998-01-01

      The present invention is a method and system for detecting a physical feature of a test piece by detecting a pattern in a signal representing data from inspection of the test piece. The pattern is detected by automated additive decomposition of a digital point-ordered signal which represents the data. The present invention can properly handle a non-periodic signal. A physical parameter of the test piece is measured. A digital point-ordered signal representative of the measured physical parameter is generated. The digital point-ordered signal is decomposed into a baseline signal, a background noise signal, and a peaks/troughs signal. The peaks/troughs from the peaks/troughs signal are located and peaks/troughs information indicating the physical feature of the test piece is output.

    6. Clock distribution system for digital computers

      DOEpatents

      Wyman, Robert H.; Loomis, Jr., Herschel H.

      1981-01-01

      Apparatus for eliminating, in each clock distribution amplifier of a clock distribution system, sequential pulse catch-up error due to one pulse "overtaking" a prior clock pulse. The apparatus includes timing means to produce a periodic electromagnetic signal with a fundamental frequency having a fundamental frequency component V'.sub.01 (t); an array of N signal characteristic detector means, with detector means No. 1 receiving the timing means signal and producing a change-of-state signal V.sub.1 (t) in response to receipt of a signal above a predetermined threshold; N substantially identical filter means, one filter means being operatively associated with each detector means, for receiving the change-of-state signal V.sub.n (t) and producing a modified change-of-state signal V'.sub.n (t) (n=1, . . . , N) having a fundamental frequency component that is substantially proportional to V'.sub.01 (t-.theta..sub.n (t) with a cumulative phase shift .theta..sub.n (t) having a time derivative that may be made uniformly and arbitrarily small; and with the detector means n+1 (1.ltoreq.n

    7. Digital Sensor Technology

      SciTech Connect

      Ted Quinn; Jerry Mauck; Richard Bockhorst; Ken Thomas

      2013-07-01

      The nuclear industry has been slow to incorporate digital sensor technology into nuclear plant designs due to concerns with digital qualification issues. However, the benefits of digital sensor technology for nuclear plant instrumentation are substantial in terms of accuracy, reliability, availability, and maintainability. This report demonstrates these benefits in direct comparisons of digital and analog sensor applications. It also addresses the qualification issues that must be addressed in the application of digital sensor technology.

    8. Computer-aided engineering system for design of sequence arrays and lithographic masks

      DOEpatents

      Hubbell, E.A.; Morris, M.S.; Winkler, J.L.

      1999-01-05

      An improved set of computer tools for forming arrays is disclosed. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks. 14 figs.

    9. Computer-aided engineering system for design of sequence arrays and lithographic masks

      DOEpatents

      Hubbell, E.A.; Morris, M.S.; Winkler, J.L.

      1996-11-05

      An improved set of computer tools for forming arrays is disclosed. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks. 14 figs.

    10. Computer-aided engineering system for design of sequence arrays and lithographic masks

      DOEpatents

      Hubbell, Earl A.; Morris, MacDonald S.; Winkler, James L.

      1996-01-01

      An improved set of computer tools for forming arrays. According to one aspect of the invention, a computer system (100) is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files (104) to design and/or generate lithographic masks (110).

    11. Computer-aided engineering system for design of sequence arrays and lithographic masks

      DOEpatents

      Hubbell, Earl A.; Morris, MacDonald S.; Winkler, James L.

      1999-01-05

      An improved set of computer tools for forming arrays. According to one aspect of the invention, a computer system (100) is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files (104) to design and/or generate lithographic masks (110).

    12. Computer-aided engineering system for design of sequence arrays and lithographic masks

      DOEpatents

      Hubbell, E.A.; Lipshutz, R.J.; Morris, M.S.; Winkler, J.L.

      1997-01-14

      An improved set of computer tools for forming arrays is disclosed. According to one aspect of the invention, a computer system is used to select probes and design the layout of an array of DNA or other polymers with certain beneficial characteristics. According to another aspect of the invention, a computer system uses chip design files to design and/or generate lithographic masks. 14 figs.

    13. Digital Ultracap Corp formerly Digital Ultracap LLC | Open Energy...

      OpenEI (Open Energy Information) [EERE & EIA]

      Ultracap Corp formerly Digital Ultracap LLC Jump to: navigation, search Name: Digital Ultracap Corp (formerly Digital Ultracap LLC) Place: Netherlands Product: Partnership between...

    14. Image display device in digital TV

      DOEpatents

      Choi, Seung Jong

      2006-07-18

      Disclosed is an image display device in a digital TV that is capable of carrying out the conversion into various kinds of resolution by using single bit map data in the digital TV. The image display device includes: a data processing part for executing bit map conversion, compression, restoration and format-conversion for text data; a memory for storing the bit map data obtained according to the bit map conversion and compression in the data processing part and image data inputted from an arbitrary receiving part, the receiving part receiving one of digital image data and analog image data; an image outputting part for reading the image data from the memory; and a display processing part for mixing the image data read from the image outputting part and the bit map data converted in format from the a data processing part. Therefore, the image display device according to the present invention can convert text data in such a manner as to correspond with various resolution, carry out the compression for bit map data, thereby reducing the memory space, and support text data of an HTML format, thereby providing the image with the text data of various shapes.

    15. Human-computer interface

      DOEpatents

      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.

    16. Jefferson Lab Groups Encourage Digital Literacy Through Worldwide 'Hour

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

      of Code' Campaign | Jefferson Lab Groups Encourage Digital Literacy Through Worldwide 'Hour of Code' Campaign Dana Cochran, Jefferson Lab staff member, helps students as they participate in a coding activity. Dana Cochran, Jefferson Lab staff member, helps students as they participate in a coding activity. Jefferson Lab Groups Encourage Digital Literacy Through Worldwide 'Hour of Code' Campaign To raise awareness of the need for digital literacy and a basic understanding of computer science,

    17. The Economic, Energy, and Environmental Impacts of the Energy-Related Inventions Program

      DOE R&D Accomplishments

      Brown, M.A.; Wilson, C.R.; Franchuk, C.A.; Cohn, S.M.; Jones, D.

      1994-07-01

      This report provides information on the economic, energy, and environmental impacts of inventions supported by the Energy-Related Inventions Program (ERIP) -- a program jointly operated by the US Department of Energy and the National Institute of Standards and Technology (NIST). It describes the results of the latest in a series of ERIP evaluation projects that have been completed since 1980. The period of interest is 1980 through 1992. The evaluation is based on data collected in 1993 through mail and telephone surveys of 253 program participants, and historical data collected during previous evaluations for an additional 189 participants.

    18. Energy-related inventions program. A joint program of the Department of Energy and the National Institute of Standards and Technology. Status report for recommendations 251 through 523

      SciTech Connect

      Not Available

      1991-03-01

      The Energy-Related Inventions Program was established in 1975. Since its inception over 27,000 inventions have been evaluated. As of the printing of the report, 523 have been recommended to the Department of Energy. The report supercedes NISTIR 4313 and summarizes the status of Inventions 251 through 523. A companion report (NISTIR 4533) summarizes recommended inventions 1 through 250.

    19. Computing Resources

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

      Cluster-Image TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Computing Resources The TRACC Computational Clusters ...

    20. Policy Flash 2013-26 Guidance for tracking inquiries related to the licensing of inventions developed at DOE facilities

      Energy.gov [DOE]

      Attached is Policy Flash 2013-26 Guidance for tracking inquiries related to the licensing of inventions developed at DOE facilities

    1. Fresh Way to Cut Combustion, Crop and Air Heating Costs Avoids Million BTU Purchases: Inventions and Innovation Combustion Success Story

      SciTech Connect

      Wogsland, J.

      2001-01-17

      Success story written for the Inventions and Innovation Program about a new space heating method that uses solar energy to heat incoming combustion, crop, and ventilation air.

    2. Industrial Vacuum Bagging Apparatus for Composite Lamina Manufacturers Reduces Energy Use and Waste: Inventions and Innovation Success Story

      SciTech Connect

      Wogsland, J.

      2001-01-17

      Project fact sheet written for the Inventions and Innovation Program about a reusable vacuum bagging system that saves energy and waste in lamina manufacturing.

    3. Low-Cost Synthesis and Consolidation of Titanium Carbide: Inventions and Innovation Industrial Materials for the Future Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a new mechanochemical process that delivers titanium-carbide powder for cutting-tool fabrication.

    4. Mobile zone spray booth technology for ultra-efficient surface coating operations: Inventions and innovation project fact sheet

      SciTech Connect

      2000-06-19

      This is a fact sheet written for the Inventions and Innovation Program about a new spray booth technology that reduces energy use and pollution during surface coating operations.

    5. Pulsed Laser Imager for Detecting Emissions of Hydrocarbons and Volatile Organic Compounds: Inventions and Innovation Petroleum Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about an advanced laser technology that safely detects leaks and emissions without requiring an air sample.

    6. Energy Saving Method of Manufacturing Ceramic Products from Waste Glass: Inventions and Innovation Glass Project Fact Sheet

      SciTech Connect

      New Horizon Technologies

      2001-01-17

      Project fact sheet written for the Inventions and Innovation Program about a new manufacturing method for producing ceramic products from waste glass.

    7. A DSP-based power electronics interface for alternate/renewable energy systems: Inventions and innovation project fact sheet

      SciTech Connect

      2000-06-19

      This is a fact sheet written for the Inventions and Innovation Program about a new grid-tied inverter technology for alternate/renewable energy systems.

    8. Titanium Matrix Composite Tooling Material for Enhanced Manufacture of Aluminum Die Castings: Inventions and Innovation Metalcasting Project Fact Sheet

      SciTech Connect

      New Horizon Technologies

      2001-01-17

      Project fact sheet written for the Inventions and Innovation Program about an innovative material for use in aluminum die-casting components.

    9. Advanced Method of Inspecting Tubular Goods and Refinery Process Piping: Inventions and Innovation Petroleum Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about an advanced analysis method that provides complete on-line ultrasonic inspection of tubular materials.

    10. Automatic ranging circuit for a digital panel meter

      DOEpatents

      Mueller, Theodore R.; Ross, Harley H.

      1976-01-01

      This invention relates to a range changing circuit that operates in conjunction with a digital panel meter of fixed sensitivity. The circuit decodes the output of the panel meter and uses that information to change the gain of an input amplifier to the panel meter in order to insure that the maximum number of significant figures is always displayed in the meter. The circuit monitors five conditions in the meter and responds to any of four combinations of these conditions by means of logic elements to carry out the function of the circuit.

    11. Methods and systems for detecting abnormal digital traffic

      DOEpatents

      Goranson, Craig A [Kennewick, WA; Burnette, John R [Kennewick, WA

      2011-03-22

      Aspects of the present invention encompass methods and systems for detecting abnormal digital traffic by assigning characterizations of network behaviors according to knowledge nodes and calculating a confidence value based on the characterizations from at least one knowledge node and on weighting factors associated with the knowledge nodes. The knowledge nodes include a characterization model based on prior network information. At least one of the knowledge nodes should not be based on fixed thresholds or signatures. The confidence value includes a quantification of the degree of confidence that the network behaviors constitute abnormal network traffic.

    12. Guidance for tracking inquiries related to the licensing of inventions developed at DOE facilities

      Office of Energy Efficiency and Renewable Energy (EERE)

      The attached memorandum provides guidance for tracking inquiries received from outside parties regarding licensable inventions developed at Department of Energy facilities. To help ensure that the Facilities consistently track valid licensing inquiries, the guidance outlines a minimum set of information that must be collected from each inquiry and requires that this information be made available to the Technology Transfer Coordinator upon request.

    13. The energy-related inventions program: Continuing benefits to the inventor community

      SciTech Connect

      Braid, R.B. Jr.; Brown, M.A.; Wilson, C.R.; Franchuk, C.A.; Rizy, C.G.

      1996-10-01

      This report provides information on the economic, energy, and environmental impacts of inventions supported by the Energy-Related Inventions Program (ERIP) - a technology commercialization program jointly operated by the U.S. Department of Energy (DOE) and the National Institute of Standards and Technology (NIST). It describes the results of the latest in a series of ERIP evaluation projects that have been completed since 1980. The period of interest is 1980 through 1994. The evaluation is based on data collected in 1995 through mail and telephone surveys of 211 program participants, and historical data collected during previous evaluations for an additional 253 participants. As of September 1993, a total of 609 inventions had been recommended to DOE by NIST, which screens all submitted inventions for technical merit, potential for commercial success, and potential energy impact. By the end of 1994, at least 144 (or 24%) of these inventions had entered the market, generating total cumulative sales of $961 million (in 19944). It is estimated that in 1994 ERIP inventors earned royalties of $2.3 million, and over the lifetime of the program, royalties total $28.2 million. With $47.5 million in grants awarded from 1975 through 1994 and $124 million in program appropriations over the same period, ERIP has generated a 20:1 return in terms of sales values to grants, and an 8:1 return in sales versus program appropriations. Further, it is estimated that at least 757 job-years of employment were supported by ERIP technologies in 1994, and that this resulted in a return of approximately $3.4 million in individual income taxes to the U.S. Treasury. Finally, approximately $334 million of energy expenditures were saved in 1994 as a result of the commercial success of five ERIP projects. These energy savings resulted in reduced emissions of 2.1 million metric tons of carbon in 1994 alone.

    14. Computing Frontier: Distributed Computing

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

      Computing Frontier: Distributed Computing and Facility Infrastructures Conveners: Kenneth Bloom 1 , Richard Gerber 2 1 Department of Physics and Astronomy, University of Nebraska-Lincoln 2 National Energy Research Scientific Computing Center (NERSC), Lawrence Berkeley National Laboratory 1.1 Introduction The field of particle physics has become increasingly reliant on large-scale computing resources to address the challenges of analyzing large datasets, completing specialized computations and

    15. Real-Time High Resolution Quantitative Imaging by Three Wavelength Digital

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

      Holography - Energy Innovation Portal Real-Time High Resolution Quantitative Imaging by Three Wavelength Digital Holography Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing Summary An optical system capable of reproducing three-dimensional images was invented at ORNL. This system can detect height changes of a few nanometers or less and render clear, single shot images. These types of precise, high speed measurements are important for a variety of

    16. Energy Efficient Digital Networks

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

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

    17. Digital Sensor Technology

      SciTech Connect

      Thomas, Ken D.; Quinn, Edward L.; Mauck, Jerry L.; Bockhorst, Richard M.

      2015-02-01

      The nuclear industry has been slow to incorporate digital sensor technology into nuclear plant designs due to concerns with digital qualification issues. However, the benefits of digital sensor technology for nuclear plant instrumentation are substantial in terms of accuracy and reliability. This paper, which refers to a final report issued in 2013, demonstrates these benefits in direct comparisons of digital and analog sensor applications. Improved accuracy results from the superior operating characteristics of digital sensors. These include improvements in sensor accuracy and drift and other related parameters which reduce total loop uncertainty and thereby increase safety and operating margins. An example instrument loop uncertainty calculation for a pressure sensor application is presented to illustrate these improvements. This is a side-by-side comparison of the instrument loop uncertainty for both an analog and a digital sensor in the same pressure measurement application. Similarly, improved sensor reliability is illustrated with a sample calculation for determining the probability of failure on demand, an industry standard reliability measure. This looks at equivalent analog and digital temperature sensors to draw the comparison. The results confirm substantial reliability improvement with the digital sensor, due in large part to ability to continuously monitor the health of a digital sensor such that problems can be immediately identified and corrected. This greatly reduces the likelihood of a latent failure condition of the sensor at the time of a design basis event. Notwithstanding the benefits of digital sensors, there are certain qualification issues that are inherent with digital technology and these are described in the report. One major qualification impediment for digital sensor implementation is software common cause failure (SCCF).

    18. Digitization Best Practices

      SciTech Connect

      Xue, Fei; Holtkamp, Irma S.; Knudson, Frances L.

      2012-07-31

      This project involved performing tests and documenting results to determine best practices for digitizing older print documents. The digitization process is complicated, especially when original documents exhibit non-standard fonts and are faded. Tests focused on solutions to improve high quality scanning, increase OCR accuracy, and efficiently use embedded metadata. Results are summarized. From the test results on the right sides, we know that when we plan to digitize documents, we should balance Quantity and Quality based on our expectation, and then make final decision for the digitization process.

    19. Digital Preservation Award

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

      Award from the Institute for Conservation and Digital Preservation (DPC) at a ... Award, one of a set of five awards that are collectively called the Conservation Awards. ...

    20. Fundamental Concepts of Digital Image Processing

      DOE R&D Accomplishments

      Twogood, R. E.

      1983-03-01

      The field of a digital-image processing has experienced dramatic growth and increasingly widespread applicability in recent years. Fortunately, advances in computer technology have kept pace with the rapid growth in volume of image data in these and other applications. Digital image processing has become economical in many fields of research and in industrial and military applications. While each application has requirements unique from the others, all are concerned with faster, cheaper, more accurate, and more extensive computation. The trend is toward real-time and interactive operations, where the user of the system obtains preliminary results within a short enough time that the next decision can be made by the human processor without loss of concentration on the task at hand. An example of this is the obtaining of two-dimensional (2-D) computer-aided tomography (CAT) images. A medical decision might be made while the patient is still under observation rather than days later.

    1. Digital rotation measurement unit

      DOEpatents

      Sanderson, S.N.

      1983-09-30

      A digital rotation indicator is disclosed for monitoring the position of a valve member having a movable actuator. The indicator utilizes mercury switches adapted to move in cooperation with the actuator. Each of the switches produces an output as it changes state when the actuator moves. A direction detection circuit is connected to the switches to produce a first digital signal indicative of the direction of rotation of the actuator. A count pulse generating circuit is also connected to the switches to produce a second digital pulse signal having count pulses corresponding to a change of state of any of the mercury switches. A reset pulse generating circuit is provided to generate a reset pulse each time a count pulse is generated. An up/down counter is connected to receive the first digital pulse signal and the second digital pulse signal and to count the pulses of the second digital pulse signal either up or down depending upon the instantaneous digital value of the first digital signal whereby a running count indicative of the movement of the actuator is maintained.

    2. J-Lab scientist wins award for graphene invention he developed as a Ph.D.

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

      student at William & Mary (The College of William and Mary, Ideation) | Jefferson Lab J-Lab scientist wins award for graphene invention he developed as a Ph.D. student at William & Mary (The College of William and Mary, Ideation) External Link: http://www.wm.edu/research/ideation/science-and-technology/j-lab-scientist-wins-... By jlab_admin on Fri, 2012-06-1

    3. Department of Energy-funded Bioenergy Research Centers File 500th Invention Disclosure

      Office of Energy Efficiency and Renewable Energy (EERE)

      Three U.S. Department of Energy-funded research centers – the BioEnergy Science Center (Oak Ridge National Laboratory), the Great Lakes Bioenergy Research Center (University of Wisconsin–Madison and Michigan State University), and the Joint BioEnergy Institute (Lawrence Berkeley National Laboratory) – are making progress on a shared mission to develop technologies that will bring advanced biofuels to the marketplace, reporting today the disclosure of their 500th invention.

    4. Quantum Computing: Solving Complex Problems

      ScienceCinema

      DiVincenzo, David [IBM Watson Research Center

      2016-07-12

      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.

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

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

      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, ...

    6. Digital Strategy | Department of Energy

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

      Digital Strategy Digital Strategy May 27, 2015 - 10:21am Addthis Implementing the Federal Digital Strategy Implementing the Federal Digital Strategy Alex Cohen Alex Cohen Former Senior Digital Information Strategist Atiq Warraich Atiq Warraich Technical Lead/Project Manager New expectations require the Federal Government to be ready to deliver and receive digital information and services anytime, anywhere and on any device. It must do so safely, securely, and with fewer resources. To build for

    7. Direct-to-digital holography and holovision

      DOEpatents

      Thomas, Clarence E.; Baylor, Larry R.; Hanson, Gregory R.; Rasmussen, David A.; Voelkl, Edgar; Castracane, James; Simkulet, Michelle; Clow, Lawrence

      2000-01-01

      Systems and methods for direct-to-digital holography are described. An apparatus includes a laser; a beamsplitter optically coupled to the laser; a reference beam mirror optically coupled to the beamsplitter; an object optically coupled to the beamsplitter, a focusing lens optically coupled to both the reference beam mirror and the object; and a digital recorder optically coupled to the focusing lens. A reference beam is incident upon the reference beam mirror at a non-normal angle, and the reference beam and an object beam are focused by the focusing lens at a focal plane of the digital recorder to form an image. The systems and methods provide advantages in that computer assisted holographic measurements can be made.

    8. Virtual mask digital electron beam lithography

      DOEpatents

      Baylor, L.R.; Thomas, C.E.; Voelkl, E.; Moore, J.A.; Simpson, M.L.; Paulus, M.J.

      1999-04-06

      Systems and methods for direct-to-digital holography are described. An apparatus includes a laser; a beamsplitter optically coupled to the laser; a reference beam mirror optically coupled to the beamsplitter; an object optically coupled to the beamsplitter, a focusing lens optically coupled to both the reference beam mirror and the object; and a digital recorder optically coupled to the focusing lens. A reference beam is incident upon the reference beam mirror at a non-normal angle, and the reference beam and an object beam are focused by the focusing lens at a focal plane of the digital recorder to form an image. The systems and methods provide advantages in that computer assisted holographic measurements can be made. 5 figs.

    9. Virtual mask digital electron beam lithography

      DOEpatents

      Baylor, Larry R.; Thomas, Clarence E.; Voelkl, Edgar; Moore, James A.; Simpson, Michael L.; Paulus, Michael J.

      1999-01-01

      Systems and methods for direct-to-digital holography are described. An apparatus includes a laser; a beamsplitter optically coupled to the laser; a reference beam mirror optically coupled to the beamsplitter; an object optically coupled to the beamsplitter, a focusing lens optically coupled to both the reference beam mirror and the object; and a digital recorder optically coupled to the focusing lens. A reference beam is incident upon the reference beam mirror at a non-normal angle, and the reference beam and an object beam are focused by the focusing lens at a focal plane of the digital recorder to form an image. The systems and methods provide advantages in that computer assisted holographic measurements can be made.

    10. Computation & Simulation > Theory & Computation > Research >...

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

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

    11. Fabrication and Testing of a Prototype Ceramic Furnace Coil for Chemical and Petrochemical Processing: Inventions and Innovation Industrial Materials for the Future Project Fact Sheet

      SciTech Connect

      New Horizon Technologies

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a new process to produce ethylene more efficiently.

    12. JGI Digital Scavenger Hunt

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

      JGI Digital Scavenger Hunt JGI Digital Scavenger Hunt The NERSC webpages are a great resource for New and Old users, so this is the first stop on the JGI Digital Scavenger Hunt. Here is your first clue: 1) Log on to Genepool (ssh -Y genepool.nersc.gov) 2) Load the JAMO (dev) module (module load jamo/dev) 3) Run the following sequence of commands and answer the questions: genpool10: ~ $ jamo What is the third letter of the sixth jamo command in the help menu? genepool10: ~ $ jamo info What is the

    13. Fast transient digitizer

      DOEpatents

      Villa, Francesco

      1982-01-01

      Method and apparatus for sequentially scanning a plurality of target elements with an electron scanning beam modulated in accordance with variations in a high-frequency analog signal to provide discrete analog signal samples representative of successive portions of the analog signal; coupling the discrete analog signal samples from each of the target elements to a different one of a plurality of high speed storage devices; converting the discrete analog signal samples to equivalent digital signals; and storing the digital signals in a digital memory unit for subsequent measurement or display.

    14. Digital sonar system

      DOEpatents

      Young, Kenneth K.; Wilkes, R. Jeffrey

      1995-01-01

      A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal.

    15. Digital sonar system

      DOEpatents

      Young, K.K.; Wilkes, R.J.

      1995-11-21

      A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal. 4 figs.

    16. Deep-Discharge Zinc-Bromine Battery Module Offers Megawatts Capacity: Inventions and Innovation Project Fact Sheet

      SciTech Connect

      2001-01-25

      Project fact sheet written for the Inventions and Innovation Program about a new technology that increases load-leveling efficiency and offers longer cycle life than lead-acid batteries.

    17. Low-Energy Alternative to Commercial Silica-Based Glass Fibers: Inventions and Innovation Glass Project Fact Sheet

      SciTech Connect

      Wogsland, J.

      2001-01-17

      Project fact sheet written for the Inventions and Innovation Program about a new low-energy alternative to creating glass fibers for use in creating boats, vehicles, and aircraft.

    18. Computers as tools

      SciTech Connect

      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}.

    19. Digital ac monitor

      DOEpatents

      Hart, G.W.; Kern, E.C. Jr.

      1987-06-09

      An apparatus and method is provided for monitoring a plurality of analog ac circuits by sampling the voltage and current waveform in each circuit at predetermined intervals, converting the analog current and voltage samples to digital format, storing the digitized current and voltage samples and using the stored digitized current and voltage samples to calculate a variety of electrical parameters; some of which are derived from the stored samples. The non-derived quantities are repeatedly calculated and stored over many separate cycles then averaged. The derived quantities are then calculated at the end of an averaging period. This produces a more accurate reading, especially when averaging over a period in which the power varies over a wide dynamic range. Frequency is measured by timing three cycles of the voltage waveform using the upward zero crossover point as a starting point for a digital timer. 24 figs.

    20. Digital ac monitor

      DOEpatents

      Hart, George W.; Kern, Jr., Edward C.

      1987-06-09

      An apparatus and method is provided for monitoring a plurality of analog ac circuits by sampling the voltage and current waveform in each circuit at predetermined intervals, converting the analog current and voltage samples to digital format, storing the digitized current and voltage samples and using the stored digitized current and voltage samples to calculate a variety of electrical parameters; some of which are derived from the stored samples. The non-derived quantities are repeatedly calculated and stored over many separate cycles then averaged. The derived quantities are then calculated at the end of an averaging period. This produces a more accurate reading, especially when averaging over a period in which the power varies over a wide dynamic range. Frequency is measured by timing three cycles of the voltage waveform using the upward zero crossover point as a starting point for a digital timer.

    1. Sloan digital sky survey

      SciTech Connect

      Kent, S.M.; Stoughton, C.; Newberg, H.; Loveday, J.; Petravick, D.; Gurbani, V.; Berman, E.; Sergey, G.; Lupton, R.

      1994-04-01

      The Sloan Digital Sky Survey will produce a detailed digital photometric map of half the northern sky to about 23 magnitude using a special purpose wide field 2.5 meter telescope. From this map we will select {approximately} 10{sup 6} galaxies and 10{sup 5} quasars, and obtain high resolution spectra using the same telescope. The imaging catalog will contain 10{sup 8} galaxies, a similar number of stars, and 10{sup 6} quasar candidates.

    2. Contact: Paul Dauenhauer (hauer@umn.edu) UD's Catalysis Center for Energy Innovation Invents New Chemical Detector

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

      immediate release Contact: Paul Dauenhauer (hauer@umn.edu) UD's Catalysis Center for Energy Innovation Invents New Chemical Detector (NEWARK, DE) January 12, 2015 -- A team of researchers at the University of Delaware's Catalysis Center for Energy Innovation (CCEI) recently invented the Quantitative Carbon Detector (QCD), a new device that identifies and quantifies chemical compounds in complex mixtures, such as fuels, oils, chemicals, pharmaceuticals and food. This instrument will have a

    3. Quantum steady computation

      SciTech Connect

      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.

    4. Digital Actuator Technology

      SciTech Connect

      Ken Thomas; Ted Quinn; Jerry Mauck; Richard Bockhorst

      2014-09-01

      There are significant developments underway in new types of actuators for power plant active components. Many of these make use of digital technology to provide a wide array of benefits in performance of the actuators and in reduced burden to maintain them. These new product offerings have gained considerable acceptance in use in process plants. In addition, they have been used in conventional power generation very successfully. This technology has been proven to deliver the benefits promised and substantiate the claims of improved performance. The nuclear industry has been reluctant to incorporate digital actuator technology into nuclear plant designs due to concerns due to a number of concerns. These could be summarized as cost, regulatory uncertainty, and a certain comfort factor with legacy analog technology. The replacement opportunity for these types of components represents a decision point for whether to invest in more modern technology that would provide superior operational and maintenance benefits. Yet, the application of digital technology has been problematic for the nuclear industry, due to qualification and regulatory issues. With some notable exceptions, the result has been a continuing reluctance to undertake the risks and uncertainties of implementing digital actuator technology when replacement opportunities present themselves. Rather, utilities would typically prefer to accept the performance limitations of the legacy analog actuator technologies to avoid impacts to project costs and schedules. The purpose of this report is to demonstrate that the benefits of digital actuator technology can be significant in terms of plant performance and that it is worthwhile to address the barriers currently holding back the widespread development and use of this technology. It addresses two important objectives in pursuit of the beneficial use of digital actuator technology for nuclear power plants: 1. To demonstrate the benefits of digital actuator

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

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

      SECRETARIAL SUPPORT Winner: Lora Wolfe Organization: Computer Science and Mathematics Division Citation: For exemplary administrative secretarial support to the Computer Science ...

    6. Method and apparatus for managing transactions with connected computers

      DOEpatents

      Goldsmith, Steven Y.; Phillips, Laurence R.; Spires, Shannon V.

      2003-01-01

      The present invention provides a method and apparatus that make use of existing computer and communication resources and that reduce the errors and delays common to complex transactions such as international shipping. The present invention comprises an agent-based collaborative work environment that assists geographically distributed commercial and government users in the management of complex transactions such as the transshipment of goods across the U.S.-Mexico border. Software agents can mediate the creation, validation and secure sharing of shipment information and regulatory documentation over the Internet, using the World-Wide Web to interface with human users.

    7. EERE Digital Data Management | Department of Energy

      Office of Environmental Management (EM)

      EERE Digital Data Management EERE Digital Data Management The Office of Energy Efficiency and Renewable Energy (EERE) Policy on Digital Data Management is part of the ...

    8. Broadcasting collective operation contributions throughout a parallel computer

      DOEpatents

      Faraj, Ahmad

      2012-02-21

      Methods, systems, and products are disclosed for broadcasting collective operation contributions throughout a parallel computer. The parallel computer includes a plurality of compute nodes connected together through a data communications network. Each compute node has a plurality of processors for use in collective parallel operations on the parallel computer. Broadcasting collective operation contributions throughout a parallel computer according to embodiments of the present invention includes: transmitting, by each processor on each compute node, that processor's collective operation contribution to the other processors on that compute node using intra-node communications; and transmitting on a designated network link, by each processor on each compute node according to a serial processor transmission sequence, that processor's collective operation contribution to the other processors on the other compute nodes using inter-node communications.

    9. OSTI, US Dept of Energy, Office of Scientific and Technical Informatio...

      Office of Scientific and Technical Information (OSTI)

      and the digital computer invention were some of these turning points. Related Topics: collaboration, higgs boson, large hadron collider, SciTech Connect, standard model

    10. OSTI, US Dept of Energy Office of Scientific and Technical Information...

      Office of Scientific and Technical Information (OSTI)

      penicillin, Einstein's theory of relativity, firsts in aviation and space, the discovery of electricity, and the digital computer invention were some of these turning points. ...

    11. NREL Invention Speeds Solar Cell Quality Testing for Industry (Fact Sheet)

      SciTech Connect

      Not Available

      2013-08-01

      A solid-state optical system, invented by the National Renewable Energy Laboratory (NREL), measures solar cell quantum efficiency (QE) in less than a second, enabling a suite of new capabilities for solar cell manufacturers. QE is a measurement of how cells respond to light across the solar spectrum, but traditional methods for measuring QE had been too slow, limiting its application to small samples pulled from the production line and analyzed in laboratories. NREL's technique, commercialized by Tau Science as the FlashQE(TM) system, uses a solid-state light source, synchronized electronics, and advanced mathematical analysis to parallel-process QE data in a tiny fraction of the time required by the current method, allowing its use on every solar cell passing through a production line.

    12. Wireless, relative-motion computer input device

      DOEpatents

      Holzrichter, John F.; Rosenbury, Erwin T.

      2004-05-18

      The present invention provides a system for controlling a computer display in a workspace using an input unit/output unit. A train of EM waves are sent out to flood the workspace. EM waves are reflected from the input unit/output unit. A relative distance moved information signal is created using the EM waves that are reflected from the input unit/output unit. Algorithms are used to convert the relative distance moved information signal to a display signal. The computer display is controlled in response to the display signal.

    13. Digitally Marking RSA Moduli

      SciTech Connect

      Johnston, A.M.

      2000-10-09

      The moduli used in RSA (see [5]) can be generated by many different sources. The generator of that modulus (assuming a single entity generates the modulus) knows its factorization. They would have the ability to forge signatures or break any system based on this moduli. If a moduli and the RSA parameters associated with it were generated by a reputable source, the system would have higher value than if the parameters were generated by an unknown entity. So for tracking, security, confidence and financial reasons it would be beneficial to know who the generator of the RSA modulus was. This is where digital marking comes in. An RSA modulus ia digitally marked, or digitally trade marked, if the generator and other identifying features of the modulus (such as its intended user, the version number, etc.) can be identified and possibly verified by the modulus itself. The basic concept of digitally marking an RSA modulus would be to fix the upper bits of the modulus to this tag. Thus anyone who sees the public modulus can tell who generated the modulus and who the generator believes the intended user/owner of the modulus is.

    14. Digital Library Research & Prototyping

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

      About the Library » Prototyping Digital Library Research & Prototyping Scholarly communication in the digital age. The Library's Digital Library Research and Prototyping Team explores various aspects of scholarly communication in the digital age, with a main focus on information infrastructure, information interoperability, and long-term persistence of the scholarly record. The team was the lead in devising groundbreaking, and widely used, scholarly information interoperability standards

    15. Increasing capacity of baseband digital data communication networks

      DOEpatents

      Frankel, Robert S.; Herman, Alexander

      1985-01-01

      This invention provides broadband network capabilities for baseband digital collision detection transceiver equipment for communication between a plurality of data stations by affording simultaneous transmission of multiple channels over a broadband pass transmission link such as a coaxial cable. Thus, a fundamental carrier wave is transmitted on said link, received at local data stations and used to detect signals on different baseband channels for reception. For transmission the carrier wave typically is used for segregating a plurality of at least two transmission channels into typically single sideband upper and lower pass bands of baseband bandwidth capability adequately separated with guard bands to permit simple separation for receiving by means of pass band filters, etc.

    16. Increasing capacity of baseband digital data communication networks

      DOEpatents

      Frankel, R.S.; Herman, A.

      This invention provides broadbank network capabilities for baseband digital collision detection transceiver equipment for communication between a plurality of data stations by affording simultaneous transmission of multiple channels over a broadband pass transmission link such as a coaxial cable. Thus, a fundamental carrier wave is transmitted on said link, received at local data stations and used to detect signals on different baseband channels for reception. For transmission the carrier wave typically is used for segregating a plurality of at least two transmission channels into typically single sideband upper and lower pass bands of baseband bandwidth capability adequately separated with guard bands to permit simple separation for receiving by means of pass band filters, etc.

    17. Applications in Data-Intensive Computing

      SciTech Connect

      Shah, Anuj R.; Adkins, Joshua N.; Baxter, Douglas J.; Cannon, William R.; Chavarría-Miranda, Daniel; Choudhury, Sutanay; Gorton, Ian; Gracio, Deborah K.; Halter, Todd D.; Jaitly, Navdeep; Johnson, John R.; Kouzes, Richard T.; Macduff, Matt C.; Marquez, Andres; Monroe, Matthew E.; Oehmen, Christopher S.; Pike, William A.; Scherrer, Chad; Villa, Oreste; Webb-Robertson, Bobbie-Jo M.; Whitney, Paul D.; Zuljevic, Nino

      2010-04-01

      This book chapter, to be published in Advances in Computers, Volume 78, in 2010 describes applications of data intensive computing (DIC). This is an invited chapter resulting from a previous publication on DIC. This work summarizes efforts coming out of the PNNL's Data Intensive Computing Initiative. Advances in technology have empowered individuals with the ability to generate digital content with mouse clicks and voice commands. Digital pictures, emails, text messages, home videos, audio, and webpages are common examples of digital content that are generated on a regular basis. Data intensive computing facilitates human understanding of complex problems. Data-intensive applications provide timely and meaningful analytical results in response to exponentially growing data complexity and associated analysis requirements through the development of new classes of software, algorithms, and hardware.

    18. Compute nodes

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

      Compute nodes Compute nodes Click here to see more detailed hierachical map of the topology of a compute node. Last edited: 2016-07-21 12:08:42

    19. Simple Design and Manufacturing Process for High-Intensity Silicon Vertical Multi-Junction Solar Cells: Inventions and Innovation Project Fact Sheet

      SciTech Connect

      New Horizon Technologies

      2001-01-17

      Project fact sheet written for the Inventions and Innovation Program about a breakthrough in solar cells in photovoltaic concentrator systems that will create cost savings in the industry.

    20. Computer System,

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

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

    1. Digital scale converter

      DOEpatents

      Upton, Richard G.

      1978-01-01

      A digital scale converter is provided for binary coded decimal (BCD) conversion. The converter may be programmed to convert a BCD value of a first scale to the equivalent value of a second scale according to a known ratio. The value to be converted is loaded into a first BCD counter and counted down to zero while a second BCD counter registers counts from zero or an offset value depending upon the conversion. Programmable rate multipliers are used to generate pulses at selected rates to the counters for the proper conversion ratio. The value present in the second counter at the time the first counter is counted to the zero count is the equivalent value of the second scale. This value may be read out and displayed on a conventional seven-segment digital display.

    2. DIGITAL Q METER

      DOEpatents

      Briscoe, W.L.

      1962-02-13

      A digital Q meter is described for measuring the Q of mechanical or electrical devices. The meter comprises in combination a transducer coupled to an input amplifier, and an upper and lower level discriminator coupled to the amplifier and having their outputs coupled to an anticoincidence gate. The output of the gate is connected to a scaler. The lower level discriminator is adjusted to a threshold level of 36.8 percent of the operating threshold level of the upper level discriminator. (AEC)

    3. ANL CT Reconstruction Algorithm for Utilizing Digital X-ray

      Energy Science and Technology Software Center

      2004-05-01

      Reconstructs X-ray computed tomographic images from large data sets known as 16-bit binary sinograms when using a massively parallelized computer architecture such as a Beowuif cluster by parallelizing the X-ray CT reconstruction routine. The algorithm uses the concept of generation of an image from carefully obtained multiple 1-D or 2-D X-ray projections. The individual projections are filtered using a digital Fast Fourier Transform. The literature refers to this as filtered back projection.

    4. NREL Scientists and Engineers Recognized for Top Innovations as Lab Celebrates Another Record-Breaking Year of Inventions

      Office of Energy Efficiency and Renewable Energy (EERE)

      During its annual Innovation and Technology Transfer Awards ceremony on May 3, the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) recognized researchers and staff for 169 new innovations, a record-breaking number of scientific and engineering inventions in fiscal year 2015 (FY15)

    5. U.S. DEPARTMENT OF ENERGY EVALUATION OF EMPLOYEE SUGGESTION/INVENTION...

      Energy.gov [DOE] (indexed site)

      Expected benefits are summarized as follows: SUMMARY OF EXPECTED BENEFITS (Attach justification or explanation. For tangible benefits, attach detailed computations to justify ...

    6. Computing Sciences

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

      Computing Sciences Our Vision National User Facilities Research Areas In Focus Global Solutions ⇒ Navigate Section Our Vision National User Facilities Research Areas In Focus Global Solutions Computational Research Division The Computational Research Division conducts research and development in mathematical modeling and simulation, algorithm design, data storage, management and analysis, computer system architecture and high-performance software implementation. Scientific Networking

    7. EBR-II and TREAT Digitization Project

      SciTech Connect

      Griffith, George W.; Rabiti, Cristian

      2015-09-01

      Digitizing the technical drawings for EBR-II and TREAT provides multiple benefits. Moving the scanned or hard copy drawings to modern 3-D CAD (Computer Aided Drawing) format saves data that could be lost over time. The 3-D drawings produce models that can interface with other drawings to make complex assemblies. The 3-D CAD format can also include detailed material properties and parametric coding that can tie critical dimensions together allowing easier modification. Creating the new files from the old drawings has found multiple inconsistencies that are being flagged or corrected improving understanding of the reactor(s).

    8. Computing Information

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

      Information From here you can find information relating to: Obtaining the right computer accounts. Using NIC terminals. Using BooNE's Computing Resources, including: Choosing your desktop. Kerberos. AFS. Printing. Recommended applications for various common tasks. Running CPU- or IO-intensive programs (batch jobs) Commonly encountered problems Computing support within BooNE Bringing a computer to FNAL, or purchasing a new one. Laptops. The Computer Security Program Plan for MiniBooNE The

    9. DIGITAL ARCHITECTURE PROJECT PLAN

      SciTech Connect

      Thomas, Ken

      2014-09-01

      The objective of this project is to develop an industry consensus document on how to scope and implement the underlying information technology infrastructure that is needed to support a vast array of real-time digital technologies to improve NPP work efficiency, to reduce human error, to increase production reliability and to enhance nuclear safety. A consensus approach is needed because: • There is currently a wide disparity in nuclear utility perspectives and positions on what is prudent and regulatory-compliant for introducing certain digital technologies into the plant environment. For example, there is a variety of implementation policies throughout the industry concerning electromagnetic compatibility (EMC), cyber security, wireless communication coverage, mobile devices for workers, mobile technology in the control room, and so forth. • There is a need to effectively share among the nuclear operating companies the early experience with these technologies and other forms of lessons-learned. There is also the opportunity to take advantage of international experience with these technologies. • There is a need to provide the industry with a sense of what other companies are implementing, so that each respective company can factor this into their own development plans and position themselves to take advantage of new work methods as they are validated by the initial implementing companies. In the nuclear power industry, once a better work practice has been proven, there is a general expectation that the rest of the industry will adopt it. However, the long-lead time of information technology infrastructure could prove to be a delaying factor. A secondary objective of this effort is to provide a general understanding of the incremental investment that would be required to support the targeted digital technologies, in terms of an incremental investment over current infrastructure. This will be required for business cases to support the adoption of these new

    10. Energy-related inventions program: A joint program of the Department of Energy and the National Institute of Standards and Technology. Status report for recommendations 1 through 250

      SciTech Connect

      Not Available

      1991-03-01

      A brief description of the Energy-Related Inventions Program and all inventions recommended by the National Institute of Standards and Technology to the Department of Energy since the inception of the program, including a brief summary of the current status of each.

    11. Digital Identities | Department of Energy

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

      Digital Identities Digital Identities banner-957163_960_720.jpg Public Key Infrastructure (PKI) is a comprehensive system that provides public-key encryption and digital signature services: Authentication - Uniquely identifies the information originator and consumer Confidentiality or Privacy - Assures information and data are protected from unauthorized access Data integrity - Assures data has not been accidentally or deliberately altered Non-Repudiation - Provides proof of the integrity and

    12. Digital Lumens | Open Energy Information

      OpenEI (Open Energy Information) [EERE & EIA]

      Lumens Jump to: navigation, search Name: Digital Lumens Address: 110 Canal Street Place: Boston, Massachusetts Zip: 02114 Region: Greater Boston Area Product: Intelligent Lighting...

    13. Stored program digital process controller

      DOEpatents

      Stephenson, Dwight L.

      1977-01-04

      A digital process control function generator wherein a timing clock, in conjunction with programmable read only memories controls variables in a process with respect to time.

    14. Method and apparatus for digitally based high speed x-ray spectrometer

      DOEpatents

      Warburton, W.K.; Hubbard, B.

      1997-11-04

      A high speed, digitally based, signal processing system which accepts input data from a detector-preamplifier and produces a spectral analysis of the x-rays illuminating the detector. The system achieves high throughputs at low cost by dividing the required digital processing steps between a ``hardwired`` processor implemented in combinatorial digital logic, which detects the presence of the x-ray signals in the digitized data stream and extracts filtered estimates of their amplitudes, and a programmable digital signal processing computer, which refines the filtered amplitude estimates and bins them to produce the desired spectral analysis. One set of algorithms allow this hybrid system to match the resolution of analog systems while operating at much higher data rates. A second set of algorithms implemented in the processor allow the system to be self calibrating as well. The same processor also handles the interface to an external control computer. 19 figs.

    15. Method and apparatus for digitally based high speed x-ray spectrometer

      DOEpatents

      Warburton, William K.; Hubbard, Bradley

      1997-01-01

      A high speed, digitally based, signal processing system which accepts input data from a detector-preamplifier and produces a spectral analysis of the x-rays illuminating the detector. The system achieves high throughputs at low cost by dividing the required digital processing steps between a "hardwired" processor implemented in combinatorial digital logic, which detects the presence of the x-ray signals in the digitized data stream and extracts filtered estimates of their amplitudes, and a programmable digital signal processing computer, which refines the filtered amplitude estimates and bins them to produce the desired spectral analysis. One set of algorithms allow this hybrid system to match the resolution of analog systems while operating at much higher data rates. A second set of algorithms implemented in the processor allow the system to be self calibrating as well. The same processor also handles the interface to an external control computer.

    16. REVIEW OF NRC APPROVED DIGITAL CONTROL SYSTEMS ANALYSIS

      SciTech Connect

      D.W. Markman

      1999-09-17

      Preliminary design concepts for the proposed Subsurface Repository at Yucca Mountain indicate extensive reliance on modern, computer-based, digital control technologies. The purpose of this analysis is to investigate the degree to which the U. S. Nuclear Regulatory Commission (NRC) has accepted and approved the use of digital control technology for safety-related applications within the nuclear power industry. This analysis reviews cases of existing digitally-based control systems that have been approved by the NRC. These cases can serve as precedence for using similar types of digitally-based control technologies within the Subsurface Repository. While it is anticipated that the Yucca Mountain Project (YMP) will not contain control systems as complex as those required for a nuclear power plant, the review of these existing NRC approved applications will provide the YMP with valuable insight into the NRCs review process and design expectations for safety-related digital control systems. According to the YMP Compliance Program Guidance, portions of various NUREGS, Regulatory Guidelines, and nuclear IEEE standards the nuclear power plant safety related concept would be applied to some of the designs on a case-by-case basis. This analysis will consider key design methods, capabilities, successes, and important limitations or problems of selected control systems that have been approved for use in the Nuclear Power industry. An additional purpose of this analysis is to provide background information in support of further development of design criteria for the YMP. The scope and primary objectives of this analysis are to: (1) Identify and research the extent and precedence of digital control and remotely operated systems approved by the NRC for the nuclear power industry. Help provide a basis for using and relying on digital technologies for nuclear related safety critical applications. (2) Identify the basic control architecture and methods of key digital control

    17. Methods for operating parallel computing systems employing sequenced communications

      DOEpatents

      Benner, R.E.; Gustafson, J.L.; Montry, G.R.

      1999-08-10

      A parallel computing system and method are disclosed having improved performance where a program is concurrently run on a plurality of nodes for reducing total processing time, each node having a processor, a memory, and a predetermined number of communication channels connected to the node and independently connected directly to other nodes. The present invention improves performance of the parallel computing system by providing a system which can provide efficient communication between the processors and between the system and input and output devices. A method is also disclosed which can locate defective nodes with the computing system. 15 figs.

    18. Methods for operating parallel computing systems employing sequenced communications

      DOEpatents

      Benner, Robert E.; Gustafson, John L.; Montry, Gary R.

      1999-01-01

      A parallel computing system and method having improved performance where a program is concurrently run on a plurality of nodes for reducing total processing time, each node having a processor, a memory, and a predetermined number of communication channels connected to the node and independently connected directly to other nodes. The present invention improves performance of performance of the parallel computing system by providing a system which can provide efficient communication between the processors and between the system and input and output devices. A method is also disclosed which can locate defective nodes with the computing system.

    19. Digital intermediate frequency QAM modulator using parallel processing

      DOEpatents

      Pao, Hsueh-Yuan; Tran, Binh-Nien

      2008-05-27

      The digital Intermediate Frequency (IF) modulator applies to various modulation types and offers a simple and low cost method to implement a high-speed digital IF modulator using field programmable gate arrays (FPGAs). The architecture eliminates multipliers and sequential processing by storing the pre-computed modulated cosine and sine carriers in ROM look-up-tables (LUTs). The high-speed input data stream is parallel processed using the corresponding LUTs, which reduces the main processing speed, allowing the use of low cost FPGAs.

    20. Computing Instantaneous Frequency by normalizing Hilbert Transform

      DOEpatents

      Huang, Norden E.

      2005-05-31

      This invention presents Normalized Amplitude Hilbert Transform (NAHT) and Normalized Hilbert Transform(NHT), both of which are new methods for computing Instantaneous Frequency. This method is designed specifically to circumvent the limitation set by the Bedorsian and Nuttal Theorems, and to provide a sharp local measure of error when the quadrature and the Hilbert Transform do not agree. Motivation for this method is that straightforward application of the Hilbert Transform followed by taking the derivative of the phase-angle as the Instantaneous Frequency (IF) leads to a common mistake made up to this date. In order to make the Hilbert Transform method work, the data has to obey certain restrictions.

    1. Computer Security

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

      computer security 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

    2. Compute Nodes

      U.S. Department of Energy (DOE) - all 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

    3. Digital quadrature phase detection

      DOEpatents

      Smith, James A.; Johnson, John A.

      1992-01-01

      A system for detecting the phase of a frequency of phase modulated signal that includes digital quadrature sampling of the frequency or phase modulated signal at two times that are one quarter of a cycle of a reference signal apart, determination of the arctangent of the ratio of a first sampling of the frequency or phase modulated signal to the second sampling of the frequency or phase modulated signal, and a determination of quadrant in which the phase determination is increased by 2.pi. when the quadrant changes from the first quadrant to the fourth quadrant and decreased by 2.pi. when the quadrant changes from the fourth quadrant to the first quadrant whereby the absolute phase of the frequency or phase modulated signal can be determined using an arbitrary reference convention.

    4. Digital quadrature phase detection

      DOEpatents

      Smith, J.A.; Johnson, J.A.

      1992-05-26

      A system for detecting the phase of a frequency or phase modulated signal that includes digital quadrature sampling of the frequency or phase modulated signal at two times that are one quarter of a cycle of a reference signal apart, determination of the arctangent of the ratio of a first sampling of the frequency or phase modulated signal to the second sampling of the frequency or phase modulated signal, and a determination of quadrant in which the phase determination is increased by 2[pi] when the quadrant changes from the first quadrant to the fourth quadrant and decreased by 2[pi] when the quadrant changes from the fourth quadrant to the first quadrant whereby the absolute phase of the frequency or phase modulated signal can be determined using an arbitrary reference convention. 6 figs.

    5. Computer, Computational, and Statistical Sciences

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

      CCS Computer, Computational, and Statistical Sciences Computational physics, computer science, applied mathematics, statistics and the integration of large data streams are central to scientific discovery and innovation. Leadership Division Leader Frank J. Alexander (Acting) Email Deputy Division Leader James Cooley (Acting) Email Earth climate map A single time step from an MPAS (Model for Prediction Across Scales) simulation, showing the temperature of the ocean. Building on research in human

    6. Digital Data Management Glossary | Department of Energy

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

      Glossary Digital Data Management Glossary Digital data management glossary terms are defined below. Data preservation: Data preservation means providing for the usability of data ...

    7. Renewable Energy & Energy Efficiency Partnership (REEEP) Digital...

      OpenEI (Open Energy Information) [EERE & EIA]

      (REEEP) Digital Library Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy and Energy Efficiency Partnership (REEEP) Digital Library AgencyCompany...

    8. Exascale Computing

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

      DesignForward FastForward CAL Partnerships Shifter: User Defined Images Archive APEX TOKIO: Total Knowledge of I/O Home » R & D » Exascale Computing Exascale Computing Moving forward into the exascale era, NERSC users place will place increased demands on NERSC computational facilities. Users will be facing increased complexity in the memory subsystem and node architecture. System designs and programming models will have to evolve to face these new challenges. NERSC staff are active in

    9. Computing Events

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

      Laboratory (pdf) DOENNSA Laboratories Fulfill National Mission with Trinity and Cielo Petascale Computers (pdf) Exascale Co-design Center for Materials in Extreme...

    10. Computer Science

      U.S. Department of Energy (DOE) - all 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...

    11. Computational Science

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

      ... Advanced Materials Laboratory Center for Integrated Nanotechnologies Combustion Research Facility Computational Science Research Institute Joint BioEnergy Institute About EC News ...

    12. NERSC Hosts Digital Stargazing Portal

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

      NERSC Hosts Digital Stargazing Portal NERSC Hosts Digital Stargazing Portal June 4, 2015 Legacy highres 1400x800 Courtesy of DECam Legacy Survey Even non-scientists can now browse sky survey images hosted at NERSC. The DECam Legacy Survey has published the first in a series of web-based catalogs that will offer an update to images of the night sky originally taken with the 15-year-old camera of the Sloan Digital Sky Survey. In the spirit of the new information age, the survey will share frequent

    13. Computing and Computational Sciences Directorate - Contacts

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

      Home About Us Contacts Jeff Nichols Associate Laboratory Director Computing and Computational Sciences Becky Verastegui Directorate Operations Manager Computing and...

    14. Computing and Computational Sciences Directorate - Divisions

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

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

    15. Apparatus for direct-to-digital spatially-heterodyned holography

      DOEpatents

      Thomas, Clarence E.; Hanson, Gregory R.

      2006-12-12

      An apparatus operable to record a spatially low-frequency heterodyne hologram including spatially heterodyne fringes for Fourier analysis includes: a laser; a beamsplitter optically coupled to the laser; an object optically coupled to the beamsplitter; a focusing lens optically coupled to both the beamsplitter and the object; a digital recorder optically coupled to the focusing lens; and a computer that performs a Fourier transform, applies a digital filter, and performs an inverse Fourier transform. A reference beam and an object beam are focused by the focusing lens at a focal plane of the digital recorder to form a spatially low-frequency heterodyne hologram including spatially heterodyne fringes for Fourier analysis which is recorded by the digital recorder, and the computer transforms the recorded spatially low-frequency heterodyne hologram including spatially heterodyne fringes and shifts axes in Fourier space to sit on top of a heterodyne carrier frequency defined by an angle between the reference beam and the object beam and cuts off signals around an original origin before performing the inverse Fourier transform.

    16. Digital-data receiver synchronization

      DOEpatents

      Smith, Stephen F.; Turner, Gary W.

      2005-08-02

      Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

    17. NSTX-U Digital Coil Protection System Software Detailed Design

      SciTech Connect

      2014-06-01

      The National Spherical Torus Experiment (NSTX) currently uses a collection of analog signal processing solutions for coil protection. Part of the NSTX Upgrade (NSTX-U) entails replacing these analog systems with a software solution running on a conventional computing platform. The new Digital Coil Protection System (DCPS) will replace the old systems entirely, while also providing an extensible framework that allows adding new functionality as desired.

    18. STATEMENT OF CONSIDERATIONS CLASS WAIVER OF U.S. AND FOREIGN PATENT RIGHTS IN INVENTIONS MADE BY

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

      U.S. AND FOREIGN PATENT RIGHTS IN INVENTIONS MADE BY SUBCONTRACTORS AND ADVANCED APPROVAL TO ASSERT COPYRIGHT IN WORKS AUTHORED DURING THE PERFORMANCE OF WORK UNDER THE CONSORTIUM FOR ADVANCED SIMULATION OF LIGHT WATER REACTORS (CASL) PROGRAM; W(C) 2011-010 [OR0-804] On February 11 , 2010, the Consortium for Advanced Simulation of Light Water Reactors (CASL) , led by UT- Battelle, LLC (UT-Battelle), the Management and Operating contractor for the Oak Ridge National Laboratory (ORNL), submitted a

    19. Compute Nodes

      U.S. Department of Energy (DOE) - all 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

    20. Storage and retrieval of large digital images

      DOEpatents

      Bradley, J.N.

      1998-01-20

      Image compression and viewing are implemented with (1) a method for performing DWT-based compression on a large digital image with a computer system possessing a two-level system of memory and (2) a method for selectively viewing areas of the image from its compressed representation at multiple resolutions and, if desired, in a client-server environment. The compression of a large digital image I(x,y) is accomplished by first defining a plurality of discrete tile image data subsets T{sub ij}(x,y) that, upon superposition, form the complete set of image data I(x,y). A seamless wavelet-based compression process is effected on I(x,y) that is comprised of successively inputting the tiles T{sub ij}(x,y) in a selected sequence to a DWT routine, and storing the resulting DWT coefficients in a first primary memory. These coefficients are periodically compressed and transferred to a secondary memory to maintain sufficient memory in the primary memory for data processing. The sequence of DWT operations on the tiles T{sub ij}(x,y) effectively calculates a seamless DWT of I(x,y). Data retrieval consists of specifying a resolution and a region of I(x,y) for display. The subset of stored DWT coefficients corresponding to each requested scene is determined and then decompressed for input to an inverse DWT, the output of which forms the image display. The repeated process whereby image views are specified may take the form an interaction with a computer pointing device on an image display from a previous retrieval. 6 figs.

    1. Storage and retrieval of large digital images

      DOEpatents

      Bradley, Jonathan N.

      1998-01-01

      Image compression and viewing are implemented with (1) a method for performing DWT-based compression on a large digital image with a computer system possessing a two-level system of memory and (2) a method for selectively viewing areas of the image from its compressed representation at multiple resolutions and, if desired, in a client-server environment. The compression of a large digital image I(x,y) is accomplished by first defining a plurality of discrete tile image data subsets T.sub.ij (x,y) that, upon superposition, form the complete set of image data I(x,y). A seamless wavelet-based compression process is effected on I(x,y) that is comprised of successively inputting the tiles T.sub.ij (x,y) in a selected sequence to a DWT routine, and storing the resulting DWT coefficients in a first primary memory. These coefficients are periodically compressed and transferred to a secondary memory to maintain sufficient memory in the primary memory for data processing. The sequence of DWT operations on the tiles T.sub.ij (x,y) effectively calculates a seamless DWT of I(x,y). Data retrieval consists of specifying a resolution and a region of I(x,y) for display. The subset of stored DWT coefficients corresponding to each requested scene is determined and then decompressed for input to an inverse DWT, the output of which forms the image display. The repeated process whereby image views are specified may take the form an interaction with a computer pointing device on an image display from a previous retrieval.

    2. Additional Requirements and Guidance for Digital Data Management | U.S. DOE

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

      Office of Science (SC) Opportunities » Additional Requirements and Guidance for Digital Data Management Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights Benefits of ASCR Funding Opportunities Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search / Public Abstracts Additional Requirements and Guidance for Digital Data Management 2013 Exascale Operating and Runtime Systems RX-Solvers FAQ 2015 EXPRESS FAQ .pdf

    3. Compute Nodes

      U.S. Department of Energy (DOE) - all 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. Artifacts in digital coincidence timing

      DOE PAGES [OSTI]

      Moses, W. W.; Peng, Q.

      2014-10-16

      Digital methods are becoming increasingly popular for measuring time differences, and are the de facto standard in PET cameras. These methods usually include a master system clock and a (digital) arrival time estimate for each detector that is obtained by comparing the detector output signal to some reference portion of this clock (such as the rising edge). Time differences between detector signals are then obtained by subtracting the digitized estimates from a detector pair. A number of different methods can be used to generate the digitized arrival time of the detector output, such as sending a discriminator output into amore » time to digital converter (TDC) or digitizing the waveform and applying a more sophisticated algorithm to extract a timing estimator.All measurement methods are subject to error, and one generally wants to minimize these errors and so optimize the timing resolution. A common method for optimizing timing methods is to measure the coincidence timing resolution between two timing signals whose time difference should be constant (such as detecting gammas from positron annihilation) and selecting the method that minimizes the width of the distribution (i.e. the timing resolution). Unfortunately, a common form of error (a nonlinear transfer function) leads to artifacts that artificially narrow this resolution, which can lead to erroneous selection of the 'optimal' method. In conclusion, the purpose of this note is to demonstrate the origin of this artifact and suggest that caution should be used when optimizing time digitization systems solely on timing resolution minimization.« less

    5. LHC Computing

      SciTech Connect

      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. Apparatus and method for managing digital resources by passing digital resource tokens between queues

      DOEpatents

      Crawford, Henry J.; Lindenstruth, Volker

      1999-01-01

      A method of managing digital resources of a digital system includes the step of reserving token values for certain digital resources in the digital system. A selected token value in a free-buffer-queue is then matched to an incoming digital resource request. The selected token value is then moved to a valid-request-queue. The selected token is subsequently removed from the valid-request-queue to allow a digital agent in the digital system to process the incoming digital resource request associated with the selected token. Thereafter, the selected token is returned to the free-buffer-queue.

    7. Apparatus and method for managing digital resources by passing digital resource tokens between queues

      DOEpatents

      Crawford, H.J.; Lindenstruth, V.

      1999-06-29

      A method of managing digital resources of a digital system includes the step of reserving token values for certain digital resources in the digital system. A selected token value in a free-buffer-queue is then matched to an incoming digital resource request. The selected token value is then moved to a valid-request-queue. The selected token is subsequently removed from the valid-request-queue to allow a digital agent in the digital system to process the incoming digital resource request associated with the selected token. Thereafter, the selected token is returned to the free-buffer-queue. 6 figs.

    8. Computational mechanics

      SciTech Connect

      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.

    9. Creating an EPICS Based Test Stand Development System for a BPM Digitizer of the Linac Coherent Light Source

      SciTech Connect

      Not Available

      2011-06-22

      The Linac Coherent Light Source (LCLS) is required to deliver a high quality electron beam for producing coherent X-rays. As a result, high resolution beam position monitoring is required. The Beam Position Monitor (BPM) digitizer acquires analog signals from the beam line and digitizes them to obtain beam position data. Although Matlab is currently being used to test the BPM digitizer?s functions and capability, the Controls Department at SLAC prefers to use Experimental Physics and Industrial Control Systems (EPICS). This paper discusses the transition of providing similar as well as enhanced functionalities, than those offered by Matlab, to test the digitizer. Altogether, the improved test stand development system can perform mathematical and statistical calculations with the waveform signals acquired from the digitizer and compute the fast Fourier transform (FFT) of the signals. Finally, logging of meaningful data into files has been added.

    10. Digitally controlled distributed phase shifter

      DOEpatents

      Hietala, V.M.; Kravitz, S.H.; Vawter, G.A.

      1993-08-17

      A digitally controlled distributed phase shifter is comprised of N phase shifters. Digital control is achieved by using N binary length-weighted electrodes located on the top surface of a waveguide. A control terminal is attached to each electrode thereby allowing the application of a control signal. The control signal is either one or two discrete bias voltages. The application of the discrete bias voltages changes the modal index of a portion of the waveguide that corresponds to a length of the electrode to which the bias voltage is applied, thereby causing the phase to change through the underlying portion of the waveguide. The digitally controlled distributed phase shift network has a total phase shift comprised of the sum of the individual phase shifters.

    11. Digitally controlled distributed phase shifter

      DOEpatents

      Hietala, Vincent M.; Kravitz, Stanley H.; Vawter, Gregory A.

      1993-01-01

      A digitally controlled distributed phase shifter is comprised of N phase shifters. Digital control is achieved by using N binary length-weighted electrodes located on the top surface of a waveguide. A control terminal is attached to each electrode thereby allowing the application of a control signal. The control signal is either one or two discrete bias voltages. The application of the discrete bias voltages changes the modal index of a portion of the waveguide that corresponds to a length of the electrode to which the bias voltage is applied, thereby causing the phase to change through the underlying portion of the waveguide. The digitally controlled distributed phase shift network has a total phase shift comprised of the sum of the individual phase shifters.

    12. Precision digital pulse phase generator

      DOEpatents

      McEwan, Thomas E.

      1996-01-01

      A timing generator comprises a crystal oscillator connected to provide an output reference pulse. A resistor-capacitor combination is connected to provide a variable-delay output pulse from an input connected to the crystal oscillator. A phase monitor is connected to provide duty-cycle representations of the reference and variable-delay output pulse phase. An operational amplifier drives a control voltage to the resistor-capacitor combination according to currents integrated from the phase monitor and injected into summing junctions. A digital-to-analog converter injects a control current into the summing junctions according to an input digital control code. A servo equilibrium results that provides a phase delay of the variable-delay output pulse to the output reference pulse that linearly depends on the input digital control code.

    13. Precision digital pulse phase generator

      DOEpatents

      McEwan, T.E.

      1996-10-08

      A timing generator comprises a crystal oscillator connected to provide an output reference pulse. A resistor-capacitor combination is connected to provide a variable-delay output pulse from an input connected to the crystal oscillator. A phase monitor is connected to provide duty-cycle representations of the reference and variable-delay output pulse phase. An operational amplifier drives a control voltage to the resistor-capacitor combination according to currents integrated from the phase monitor and injected into summing junctions. A digital-to-analog converter injects a control current into the summing junctions according to an input digital control code. A servo equilibrium results that provides a phase delay of the variable-delay output pulse to the output reference pulse that linearly depends on the input digital control code. 2 figs.

    14. Mesofluidic two stage digital valve

      DOEpatents

      Jansen, John F; Love, Lonnie J; Lind, Randall F; Richardson, Bradley S

      2013-12-31

      A mesofluidic scale digital valve system includes a first mesofluidic scale valve having a valve body including a bore, wherein the valve body is configured to cooperate with a solenoid disposed substantially adjacent to the valve body to translate a poppet carried within the bore. The mesofluidic scale digital valve system also includes a second mesofluidic scale valve disposed substantially perpendicular to the first mesofluidic scale valve. The mesofluidic scale digital valve system further includes a control element in communication with the solenoid, wherein the control element is configured to maintain the solenoid in an energized state for a fixed period of time to provide a desired flow rate through an orifice of the second mesofluidic valve.

    15. Compute Nodes

      U.S. Department of Energy (DOE) - all 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

    16. Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping...

      OpenEI (Open Energy Information) [EERE & EIA]

      and paper methods. The focus of the research was to minimize the size and weight of computer systems. Systems identified consist of a wearable PC or handheld computer (PDA) and...

    17. Computational mechanics

      SciTech Connect

      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.

    18. Digital control of HVDC converters

      SciTech Connect

      Pilotto, L.A.S.; Roitman, M.; Alves, J.E.R.

      1989-05-01

      This paper presents the project of a completely digital HVDC converter controller based on a 16-bit microcomputer. It was decided to achieve as much as possible by software in order to minimize functions performed by external hardware. The presented design comprises software programmed functions such as a PID current control amplifier, voltage dependent current order limiters and an alpha-minimum symmetrization unit, among others. HVDC control principles are briefly reviewed and a detailed description of both the hardware and software structure of the controller is presented. The digital controller was implemented in an HVDC simulator and several dynamic performance tests demonstrated the efficiency of the proposed methodology.

    19. Additional Guidance for EERE Digital Data Management Plans |...

      Office of Environmental Management (EM)

      Services Funding Digital Data Management Additional Guidance for EERE Digital Data Management Plans Additional Guidance for EERE Digital Data Management Plans Beyond the ...

    20. An Arbitrary Precision Computation Package

      Energy Science and Technology Software Center

      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

    1. Computing Resources

      U.S. Department of Energy (DOE) - all 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

    2. Computational trigonometry

      SciTech Connect

      Gustafson, K.

      1994-12-31

      By means of the author`s earlier theory of antieigenvalues and antieigenvectors, a new computational approach to iterative methods is presented. This enables an explicit trigonometric understanding of iterative convergence and provides new insights into the sharpness of error bounds. Direct applications to Gradient descent, Conjugate gradient, GCR(k), Orthomin, CGN, GMRES, CGS, and other matrix iterative schemes will be given.

    3. Computational Structural Mechanics

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

      load-2 TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Computational Structural Mechanics Overview of CSM ...

    4. Advanced Scientific Computing Research

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

      Advanced Scientific Computing Research Advanced Scientific Computing Research Discovering, ... The DOE Office of Science's Advanced Scientific Computing Research (ASCR) program ...

    5. Plasma digital density determining device

      DOEpatents

      Sprott, Julien C.; Lovell, Thomas W.; Holly, Donald J.

      1976-01-01

      The density of a decaying plasma in an electrically conducting enclosure is determined by applying an excitation to the cavity formed by the enclosure and counting digitally the number of resonant frequencies traversed by the combination of the cavity and the decaying plasma.

    6. Federal Digital Strategy | OpenEI Community

      OpenEI (Open Energy Information) [EERE & EIA]

      Federal Digital Strategy Home Graham7781's picture Submitted by Graham7781(2017) Super contributor 19 September, 2012 - 14:32 OpenEI part of the Federal Digital Strategy data...

    7. Computing at JLab

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

      JLab --- Accelerator Controls CAD CDEV CODA Computer Center High Performance Computing Scientific Computing JLab Computer Silo maintained by webmaster@jlab.org...

    8. EERE Digital Data Management | Department of Energy

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

      Apply for Funding » EERE Digital Data Management EERE Digital Data Management The Office of Energy Efficiency and Renewable Energy (EERE) Policy on Digital Data Management is part of the implementation of the Department of Energy's Public Access Plan and was developed in alignment with the U.S. Department of Energy (DOE) Policy on Digital Data Management. EERE's mission is to create and sustain American leadership in the transition to a global clean energy economy. EERE leads the Department of

    9. Federal Digital Strategy | Department of Energy

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

      Federal Digital Strategy Federal Digital Strategy New expectations require the Federal Government to be ready to deliver and receive digital information and services anytime, anywhere and on any device. It must do so safely, securely, and with fewer resources. To build for the future, the Federal Government has developed a Digital Strategy that embraces the opportunity to innovate more with less, and enables entrepreneurs to better leverage government data to improve the quality of services to

    10. Executing a gather operation on a parallel computer

      DOEpatents

      Archer, Charles J.; Ratterman, Joseph D.

      2012-03-20

      Methods, apparatus, and computer program products are disclosed for executing a gather operation on a parallel computer according to embodiments of the present invention. Embodiments include configuring, by the logical root, a result buffer or the logical root, the result buffer having positions, each position corresponding to a ranked node in the operational group and for storing contribution data gathered from that ranked node. Embodiments also include repeatedly for each position in the result buffer: determining, by each compute node of an operational group, whether the current position in the result buffer corresponds with the rank of the compute node, if the current position in the result buffer corresponds with the rank of the compute node, contributing, by that compute node, the compute node's contribution data, if the current position in the result buffer does not correspond with the rank of the compute node, contributing, by that compute node, a value of zero for the contribution data, and storing, by the logical root in the current position in the result buffer, results of a bitwise OR operation of all the contribution data by all compute nodes of the operational group for the current position, the results received through the global combining network.

    11. Computational Combustion

      SciTech Connect

      Westbrook, C K; Mizobuchi, Y; Poinsot, T J; Smith, P J; Warnatz, J

      2004-08-26

      Progress in the field of computational combustion over the past 50 years is reviewed. Particular attention is given to those classes of models that are common to most system modeling efforts, including fluid dynamics, chemical kinetics, liquid sprays, and turbulent flame models. The developments in combustion modeling are placed into the time-dependent context of the accompanying exponential growth in computer capabilities and Moore's Law. Superimposed on this steady growth, the occasional sudden advances in modeling capabilities are identified and their impacts are discussed. Integration of submodels into system models for spark ignition, diesel and homogeneous charge, compression ignition engines, surface and catalytic combustion, pulse combustion, and detonations are described. Finally, the current state of combustion modeling is illustrated by descriptions of a very large jet lifted 3D turbulent hydrogen flame with direct numerical simulation and 3D large eddy simulations of practical gas burner combustion devices.

    12. Computer System,

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

      System, Cluster, and Networking Summer Institute New Mexico Consortium and Los Alamos National Laboratory How to Apply Applications are due on or before December 1, 2016 Undergraduate and graduate students in computer science, engineering, and information technology related majors are encouraged to apply. Must be a U.S. Citizen. * Submit a current resume * Official university transcript (with Spring courses posted and/or a copy of Spring 2017 schedule) * Undergraduate 3.0 GPA minimum * Graduate

    13. High-performance computing for airborne applications

      SciTech Connect

      Quinn, Heather M; Manuzzato, Andrea; Fairbanks, Tom; Dallmann, Nicholas; Desgeorges, Rose

      2010-06-28

      Recently, there has been attempts to move common satellite tasks to unmanned aerial vehicles (UAVs). UAVs are significantly cheaper to buy than satellites and easier to deploy on an as-needed basis. The more benign radiation environment also allows for an aggressive adoption of state-of-the-art commercial computational devices, which increases the amount of data that can be collected. There are a number of commercial computing devices currently available that are well-suited to high-performance computing. These devices range from specialized computational devices, such as field-programmable gate arrays (FPGAs) and digital signal processors (DSPs), to traditional computing platforms, such as microprocessors. Even though the radiation environment is relatively benign, these devices could be susceptible to single-event effects. In this paper, we will present radiation data for high-performance computing devices in a accelerated neutron environment. These devices include a multi-core digital signal processor, two field-programmable gate arrays, and a microprocessor. From these results, we found that all of these devices are suitable for many airplane environments without reliability problems.

    14. Light Water Reactor Sustainability Program. Digital Architecture Requirements

      SciTech Connect

      Thomas, Kenneth; Oxstrand, Johanna

      2015-03-01

      The Digital Architecture effort is a part of the Department of Energy (DOE) sponsored Light-Water Reactor Sustainability (LWRS) Program conducted at Idaho National Laboratory (INL). The LWRS program is performed in close collaboration with industry research and development (R&D) programs that provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants (NPPs). One of the primary missions of the LWRS program is to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. Therefore, a major objective of the LWRS program is the development of a seamless digital environment for plant operations and support by integrating information from plant systems with plant processes for nuclear workers through an array of interconnected technologies. In order to get the most benefits of the advanced technology suggested by the different research activities in the LWRS program, the nuclear utilities need a digital architecture in place to support the technology. A digital architecture can be defined as a collection of information technology (IT) capabilities needed to support and integrate a wide-spectrum of real-time digital capabilities for nuclear power plant performance improvements. It is not hard to imagine that many processes within the plant can be largely improved from both a system and human performance perspective by utilizing a plant wide (or near plant wide) wireless network. For example, a plant wide wireless network allows for real time plant status information to easily be accessed in the control room, field workers’ computer-based procedures can be updated based on the real time plant status, and status on ongoing procedures can be incorporated into smart schedules in the outage command center to allow for more accurate planning of critical tasks. The goal

    15. Computer controlled fluorometer device and method of operating same

      DOEpatents

      Kolber, Z.; Falkowski, P.

      1990-07-17

      A computer controlled fluorometer device and method of operating same, said device being made to include a pump flash source and a probe flash source and one or more sample chambers in combination with a light condenser lens system and associated filters and reflectors and collimators, as well as signal conditioning and monitoring means and a programmable computer means and a software programmable source of background irradiance that is operable according to the method of the invention to rapidly, efficiently and accurately measure photosynthetic activity by precisely monitoring and recording changes in fluorescence yield produced by a controlled series of predetermined cycles of probe and pump flashes from the respective probe and pump sources that are controlled by the computer means. 13 figs.

    16. Computer controlled fluorometer device and method of operating same

      DOEpatents

      Kolber, Zbigniew; Falkowski, Paul

      1990-01-01

      A computer controlled fluorometer device and method of operating same, said device being made to include a pump flash source and a probe flash source and one or more sample chambers in combination with a light condenser lens system and associated filters and reflectors and collimators, as well as signal conditioning and monitoring means and a programmable computer means and a software programmable source of background irradiance that is operable according to the method of the invention to rapidly, efficiently and accurately measure photosynthetic activity by precisely monitoring and recording changes in fluorescence yield produced by a controlled series of predetermined cycles of probe and pump flashes from the respective probe and pump sources that are controlled by the computer means.

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

      SciTech Connect

      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.'

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

      DOEpatents

      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. Computing and Computational Sciences Directorate - Joint Institute...

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

      JICS combines the experience and expertise in theoretical and computational science and engineering, computer science, and mathematics in these two institutions and focuses these ...

    20. Computational Fluid Dynamics

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

      scour-tracc-cfd TRACC RESEARCH Computational Fluid Dynamics Computational Structural Mechanics Transportation Systems Modeling Computational Fluid Dynamics Overview of CFD: Video ...

    1. High Performance Computing

      U.S. Department of Energy (DOE) - all 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...

    2. Digital electronic bone growth stimulator

      DOEpatents

      Kronberg, J.W.

      1995-05-09

      A device is described for stimulating bone tissue by applying a low level alternating current signal directly to the patient`s skin. A crystal oscillator, a binary divider chain and digital logic gates are used to generate the desired waveforms that reproduce the natural electrical characteristics found in bone tissue needed for stimulating bone growth and treating osteoporosis. The device, powered by a battery, contains a switch allowing selection of the correct waveform for bone growth stimulation or osteoporosis treatment so that, when attached to the skin of the patient using standard skin contact electrodes, the correct signal is communicated to the underlying bone structures. 5 figs.

    3. Digital electronic bone growth stimulator

      DOEpatents

      Kronberg, James W.

      1995-01-01

      A device for stimulating bone tissue by applying a low level alternating current signal directly to the patient's skin. A crystal oscillator, a binary divider chain and digital logic gates are used to generate the desired waveforms that reproduce the natural electrical characteristics found in bone tissue needed for stimulating bone growth and treating osteoporosis. The device, powered by a battery, contains a switch allowing selection of the correct waveform for bone growth stimulation or osteoporosis treatment so that, when attached to the skin of the patient using standard skin contact electrodes, the correct signal is communicated to the underlying bone structures.

    4. Digital Data Management Requirements | Department of Energy

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

      Requirements Digital Data Management Requirements To integrate data management planning into an overall research plan, the following requirements will apply to all Office of Energy ...

    5. Digital Data Management Roles and Responsibilities | Department...

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

      Digital Data Management Roles and Responsibilities The roles and responsibilities associated with Office of Energy Efficiency and Renewable Energy (EERE) data management plans ...

    6. Digital Data Management Frequently Asked Questions | Department...

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

      Frequently Asked Questions Digital Data Management Frequently Asked Questions Submitting a Data Management Plan 1. I am submitting an applicationproposal for research funding in ...

    7. Digital Power Capital LLC | Open Energy Information

      OpenEI (Open Energy Information) [EERE & EIA]

      Capital LLC Jump to: navigation, search Name: Digital Power Capital LLC Place: Greenwich, Connecticut Zip: 6830 Product: A private equity firm focused on new technologies that...

    8. Half Metallic Digital Ferromagnetic Heterostructure Composed...

      Office of Scientific and Technical Information (OSTI)

      Citation Details In-Document Search Title: Half Metallic Digital Ferromagnetic ... originating from hybridized Mn-d and nearest-neighbor Si-p states, and the corresponding ...

    9. Digital Surveying Directional Surveying Specialists | Open Energy...

      OpenEI (Open Energy Information) [EERE & EIA]

      Surveying Specialists Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Digital Surveying Directional Surveying Specialists Author Directional Surveying...

    10. Half Metallic Digital Ferromagnetic Heterostructure Composed...

      Office of Scientific and Technical Information (OSTI)

      The authors propose and investigate the properties of a digital ferromagnetic ... Letters, vol. 96, NA, January 19, 2006, pp. 027211; Journal Volume: 96 Research Org: ...

    11. Digital Gas Inc | Open Energy Information

      OpenEI (Open Energy Information) [EERE & EIA]

      Gas Inc Jump to: navigation, search Name: Digital Gas Inc Place: Dallas, Texas Sector: Solar Product: Company with a number of subsidiaries involved in mining, solar power, waste...

    12. CMOS-compatible InP/InGaAs digital photoreceiver

      DOEpatents

      Lovejoy, Michael L.; Rose, Benny H.; Craft, David C.; Enquist, Paul M.; Slater, Jr., David B.

      1997-01-01

      A digital photoreceiver is formed monolithically on an InP semiconductor substrate and comprises a p-i-n photodetector formed from a plurality of InP/InGaAs layers deposited by an epitaxial growth process and an adjacent heterojunction bipolar transistor (HBT) amplifier formed from the same InP/InGaAs layers. The photoreceiver amplifier operates in a large-signal mode to convert a detected photocurrent signal into an amplified output capable of directly driving integrated circuits such as CMOS. In combination with an optical transmitter, the photoreceiver may be used to establish a short-range channel of digital optical communications between integrated circuits with applications to multi-chip modules (MCMs). The photoreceiver may also be used with fiber optic coupling for establishing longer-range digital communications (i.e. optical interconnects) between distributed computers or the like. Arrays of digital photoreceivers may be formed on a common substrate for establishing a plurality of channels of digital optical communication, with each photoreceiver being spaced by less than about 1 mm and consuming less than about 20 mW of power, and preferably less than about 10 mW. Such photoreceiver arrays are useful for transferring huge amounts of digital data between integrated circuits at bit rates of up to about 1000 Mb/s or more.

    13. CMOS-compatible InP/InGaAs digital photoreceiver

      DOEpatents

      Lovejoy, M.L.; Rose, B.H.; Craft, D.C.; Enquist, P.M.; Slater, D.B. Jr.

      1997-11-04

      A digital photoreceiver is formed monolithically on an InP semiconductor substrate and comprises a p-i-n photodetector formed from a plurality of InP/InGaAs layers deposited by an epitaxial growth process and an adjacent heterojunction bipolar transistor (HBT) amplifier formed from the same InP/InGaAs layers. The photoreceiver amplifier operates in a large-signal mode to convert a detected photocurrent signal into an amplified output capable of directly driving integrated circuits such as CMOS. In combination with an optical transmitter, the photoreceiver may be used to establish a short-range channel of digital optical communications between integrated circuits with applications to multi-chip modules (MCMs). The photoreceiver may also be used with fiber optic coupling for establishing longer-range digital communications (i.e. optical interconnects) between distributed computers or the like. Arrays of digital photoreceivers may be formed on a common substrate for establishing a plurality of channels of digital optical communication, with each photoreceiver being spaced by less than about 1 mm and consuming less than about 20 mW of power, and preferably less than about 10 mW. Such photoreceiver arrays are useful for transferring huge amounts of digital data between integrated circuits at bit rates of up to about 1,000 Mb/s or more. 4 figs.

    14. Determining position inside building via laser rangefinder and handheld computer

      DOEpatents

      Ramsey, Jr. James L.; Finley, Patrick; Melton, Brad

      2010-01-12

      An apparatus, computer software, and a method of determining position inside a building comprising selecting on a PDA at least two walls of a room in a digitized map of a building or a portion of a building, pointing and firing a laser rangefinder at corresponding physical walls, transmitting collected range information to the PDA, and computing on the PDA a position of the laser rangefinder within the room.

    15. ANL CT Image Reconstruction Algorithm for Utilizing Digital X-ray Detector Array

      Energy Science and Technology Software Center

      2004-08-05

      Reconstructs X-ray computed tomographic images from large data sets known as 16-bit binary sinograms. The algorithm uses the concept of generation of an image from carefully obtained multiple l-D or 2-0 X-ray projections. The individual projections are filtered using a digital Fast Fourier Transform. The literature refers to this as filtered back projection. The software is capable of processing a large file for reconstructing single images or volumetnc (3-D) images from large area high resolutionmore » digital X-ray detectors.« less

    16. RF digital-to-analog converter

      DOEpatents

      Conway, P.H.; Yu, D.U.L.

      1995-02-28

      A digital-to-analog converter is disclosed for producing an RF output signal proportional to a digital input word of N bits from an RF reference input, N being an integer greater or equal to 2. The converter comprises a plurality of power splitters, power combiners and a plurality of mixers or RF switches connected in a predetermined configuration. 18 figs.

    17. RF digital-to-analog converter

      DOEpatents

      Conway, Patrick H.; Yu, David U. L.

      1995-01-01

      A digital-to analogue converter for producing an RF output signal proportional to a digital input word of N bits from an RF reference input, N being an integer greater or equal to 2. The converter comprises a plurality of power splitters, power combiners and a plurality of mixers or RF switches connected in a predetermined configuration.

    18. Method and system for knowledge discovery using non-linear statistical analysis and a 1st and 2nd tier computer program

      DOEpatents

      Hively, Lee M.

      2011-07-12

      The invention relates to a method and apparatus for simultaneously processing different sources of test data into informational data and then processing different categories of informational data into knowledge-based data. The knowledge-based data can then be communicated between nodes in a system of multiple computers according to rules for a type of complex, hierarchical computer system modeled on a human brain.

    19. Optical analog-to-digital converter

      DOEpatents

      Vawter, G. Allen; Raring, James; Skogen, Erik J.

      2009-07-21

      An optical analog-to-digital converter (ADC) is disclosed which converts an input optical analog signal to an output optical digital signal at a sampling rate defined by a sampling optical signal. Each bit of the digital representation is separately determined using an optical waveguide interferometer and an optical thresholding element. The interferometer uses the optical analog signal and the sampling optical signal to generate a sinusoidally-varying output signal using cross-phase-modulation (XPM) or a photocurrent generated from the optical analog signal. The sinusoidally-varying output signal is then digitized by the thresholding element, which includes a saturable absorber or at least one semiconductor optical amplifier, to form the optical digital signal which can be output either in parallel or serially.

    20. Lessons learned in digital upgrade projects digital control system implementation at US nuclear power stations

      SciTech Connect

      Kelley, S.; Bolian, T. W.

      2006-07-01

      AREVA NP has gained significant experience during the past five years in digital upgrades at operating nuclear power stations in the US. Plants are seeking modernization with digital technology to address obsolescence, spare parts availability, vendor support, increasing age-related failures and diminished reliability. New systems offer improved reliability and functionality, and decreased maintenance requirements. Significant lessons learned have been identified relating to the areas of licensing, equipment qualification, software quality assurance and other topics specific to digital controls. Digital control systems have been installed in non safety-related control applications at many utilities within the last 15 years. There have also been a few replacements of small safety-related systems with digital technology. Digital control systems are proving to be reliable, accurate, and easy to maintain. Digital technology is gaining acceptance and momentum with both utilities and regulatory agencies based upon the successes of these installations. Also, new plants are being designed with integrated digital control systems. To support plant life extension and address obsolescence of critical components, utilities are beginning to install digital technology for primary safety-system replacement. AREVA NP analyzed operating experience and lessons learned from its own digital upgrade projects as well as industry-wide experience to identify key issues that should be considered when implementing digital controls in nuclear power stations.

    1. The Digital Revolution in Measurements

      SciTech Connect

      Kirkham, Harold

      2013-02-27

      This paper considers what it means to make a measurement, and the changes in measurement technology over the years. The impact of the latest changes, which have resulted in most electrical measurements being done digitally, is explored. It is argued that the process of measurement can be considered equivalent to one of data compression. The smart grid will certainly result in many more signals being made available, and therefore a great deal of data compression will be taking place. Measurements will be made in parts of the power system presently unmonitored, as well as parts that are already well covered by instrumentation. The smart grid engineer must decide what it means to have “useful” information. Unless care is taken, the signal processing may furnish information that is not useful, and may not even make sense. The paper concludes by examining the possibilities of data compression from multiple separate signals.

    2. Digital Television and Media Innovations | Princeton Plasma Physics Lab

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

      Digital Strategy Digital Strategy May 27, 2015 - 10:21am Addthis Implementing the Federal Digital Strategy Implementing the Federal Digital Strategy Alex Cohen Alex Cohen Former Senior Digital Information Strategist Atiq Warraich Atiq Warraich Technical Lead/Project Manager New expectations require the Federal Government to be ready to deliver and receive digital information and services anytime, anywhere and on any device. It must do so safely, securely, and with fewer resources. To build for

    3. DOE Policy for Digital Research Data Management | Department...

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

      DOE Policy for Digital Research Data Management The Department of Energy (DOE) is ... Here, data management involves all stages of the digital data lifecycle including capture, ...

    4. Digital Data Management Additional Guidance | Department of Energy

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

      Additional Guidance Digital Data Management Additional Guidance Beyond the Office of Energy Efficiency and Renewable Energy (EERE) digital data management requirements, the ...

    5. SEARCH FOR SUPERMASSIVE BLACK HOLE BINARIES IN THE SLOAN DIGITAL...

      Office of Scientific and Technical Information (OSTI)

      THE SLOAN DIGITAL SKY SURVEY SPECTROSCOPIC SAMPLE Citation Details In-Document Search Title: SEARCH FOR SUPERMASSIVE BLACK HOLE BINARIES IN THE SLOAN DIGITAL SKY SURVEY ...

    6. Improved Engine Control Strategies Enabled by Digital Signal...

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

      Engine Control Strategies Enabled by Digital Signal-Processing Method for Zirconia Exhaust Sensors Improved Engine Control Strategies Enabled by Digital Signal-Processing Method ...

    7. The Sloan Digital Sky Survey Monitor Telescope Pipeline (Journal...

      Office of Scientific and Technical Information (OSTI)

      The Sloan Digital Sky Survey Monitor Telescope Pipeline Citation Details In-Document Search Title: The Sloan Digital Sky Survey Monitor Telescope Pipeline You are accessing a...

    8. Computation Directorate 2007 Annual Report

      SciTech Connect

      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

    9. Digital revenue metering algorithm: development, analysis, implementation, testing, and evaluation. Final report

      SciTech Connect

      Schweitzer III, E.O.; To, H.W.; Ando, M.

      1980-11-01

      A digital revenue metering algorithm is described. The algorithm has been tested in a microcomputer system using two 8-bit MC6800 microprocessors and 12-bit analog-to-digital converters. The tests show that the system meets the accuracy requirements of ANSI C12-1975. The algorithm demands modest computing requirements and low data sampling rates. The algorithm uses Walsh-functions and will operate with as few as 4 samples per 60-Hz cycle. For proper response to odd harmonic frequencies, higher sampling rates must be used. Third harmonic power can be handled with an 8-sample per cycle Walsh function. However, even harmonics are effectively suppressed by the algorithm. The developed algorithm is intended for use in digital data acquisition systems for substations where interchange metering is required.

    10. Stencil Computation Optimization

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

      ... was obtained using an in-line digital power Core Intel AMD Sun STI NVIDIA Architecture Core2 Barcelona Niagara2 Cell eDP SPE GT200 SM super scalar super scalar MT SIMD MT Type ...

    11. Evaluation of computer-based ultrasonic inservice inspection systems

      SciTech Connect

      Harris, R.V. Jr.; Angel, L.J.; Doctor, S.R.; Park, W.R.; Schuster, G.J.; Taylor, T.T.

      1994-03-01

      This report presents the principles, practices, terminology, and technology of computer-based ultrasonic testing for inservice inspection (UT/ISI) of nuclear power plants, with extensive use of drawings, diagrams, and LTT images. The presentation is technical but assumes limited specific knowledge of ultrasonics or computers. The report is divided into 9 sections covering conventional LTT, computer-based LTT, and evaluation methodology. Conventional LTT topics include coordinate axes, scanning, instrument operation, RF and video signals, and A-, B-, and C-scans. Computer-based topics include sampling, digitization, signal analysis, image presentation, SAFI, ultrasonic holography, transducer arrays, and data interpretation. An evaluation methodology for computer-based LTT/ISI systems is presented, including questions, detailed procedures, and test block designs. Brief evaluations of several computer-based LTT/ISI systems are given; supplementary volumes will provide detailed evaluations of selected systems.

    12. ChemCam sends digital 'thumbs up'

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

      ChemCam sends digital 'thumbs up' ChemCam sends digital 'thumbs up' Members of the team got a digital thumbs up about the operational readiness of their instrument just hours after the rover landed on Martian soil. August 8, 2012 Researchers from LANL and the French Space Agency examine data from the Mars Science Laboratory Curiosity rover from inside the ChemCam Operations Center at NASA's Jet Propulsion Laboratory on Monday, Aug. 6, 2012, less than a day after the rover landed on Mars. The

    13. Applications of Parallel Computers

      U.S. Department of Energy (DOE) - all 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...

    14. Theory, Modeling and Computation

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

      Theory, Modeling and Computation Theory, Modeling and Computation The sophistication of 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 computing. CONTACT Jack Shlachter (505) 665-1888 Email Extreme Computing to Power Accurate Atomistic Simulations Advances in high-performance computing and theory allow longer and larger atomistic simulations than currently possible.

    15. 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...

    16. Computer hardware fault administration

      DOEpatents

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

      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.

    17. Computational Earth Science

      U.S. Department of Energy (DOE) - all 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 ...

    18. Applied & Computational Math

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

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

    19. Molecular Science Computing | EMSL

      U.S. Department of Energy (DOE) - all 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...

    20. Digital radiography: a focus on clinical utility

      SciTech Connect

      Price, R.R.; Rollo, F.D.; Monahan, W.G.; James, A.E. Jr.

      1982-01-01

      This book is interesting and timely in that it covers the new and exciting area of digital radiography. The book begins with chapters on the physics, instrumentation, and terminology of digital radiography. Then cost-benefit ratios, legal implication, and outpatient vs. inpatient studies are discussed. The clinical chapters follow. These are applicable to the head and neck, heart, lungs, kidneys, peripheral arteries, and pediatric population. Discussion then centers on intraarterial digital subtraction, clinical experience at Wisconsin, nonangiography application of digital radiology in children, and analog film-screen subtraction intravenous angiography. The book ends by briefly discussing microwave imaging, nuclear magnetic resonance, emission tomography, real-time and Doppler sonography, analog tomography, and the future photoelectric radiology department.

    1. Daylighting Digital Dimmer | Department of Energy

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

      Daylighting Digital Dimmer Daylighting Digital Dimmer Lead Performer: MoJo Labs Inc. - Longmont, CO DOE Total Funding: $992,918 Project Term: July 28, 2015 - July 27, 2017 Funding Opportunity: FY2015 Phase II Release 2 SBIR Awards PROJECT OBJECTIVE The novel solid-state lighting control architecture successfully demonstrated during the Phase I effort produced a product called the RiteBriteTM, which uses a patent-pending technology called Task-to-Wall (TTW) Translation. It provides

    2. Everything Digital: Converting the world in 2 Exabytes

      SciTech Connect

      Lesk, Michael

      2003-11-05

      Nearly everything created today is in digital format: music is on digital CDs, documents come from word processing, still photography is switching to digital cameras and even movies are now edited digitally. What about the past? We have projects like the Million Book Project scanning one million books, and we know technically how to convert everything: the problems are legal, economic and organizational.

    3. Concurrent signal combining and channel estimation in digital communications

      SciTech Connect

      Ormesher, Richard C.; Mason, John J.

      2011-08-30

      In the reception of digital information transmitted on a communication channel, a characteristic exhibited by the communication channel during transmission of the digital information is estimated based on a communication signal that represents the digital information and has been received via the communication channel. Concurrently with the estimating, the communication signal is used to decide what digital information was transmitted.

    4. Computational Science and Engineering

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

      Computational Science and Engineering NETL's Computational Science and Engineering competency consists of conducting applied scientific research and developing physics-based simulation models, methods, and tools to support the development and deployment of novel process and equipment designs. Research includes advanced computations to generate information beyond the reach of experiments alone by integrating experimental and computational sciences across different length and time scales. Specific

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

      U.S. Department of Energy (DOE) - all 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. ...

    6. Parallel computing works

      SciTech Connect

      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.

    7. Photo of the Week: Living Large -- Argonne's First Computer | Department of

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

      Energy Living Large -- Argonne's First Computer Photo of the Week: Living Large -- Argonne's First Computer August 31, 2012 - 9:58am Addthis Before there was Google, or even the Internet, there was the computer -- and the earliest computers were so large that just one could occupy an entire room. AVIDAC was the first digital computer at Argonne National Laboratory, and began operating in 1953. It was built by the Physics Division for $250,000. Pictured here, with AVIDAC, is pioneer Argonne

    8. Polymorphous computing fabric

      DOEpatents

      Wolinski, Christophe Czeslaw; Gokhale, Maya B.; McCabe, Kevin Peter

      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.

    9. Digitally programmable signal generator and method

      DOEpatents

      Priatko, G.J.; Kaskey, J.A.

      1989-11-14

      Disclosed is a digitally programmable waveform generator for generating completely arbitrary digital or analog waveforms from very low frequencies to frequencies in the gigasample per second range. A memory array with multiple parallel outputs is addressed; then the parallel output data is latched into buffer storage from which it is serially multiplexed out at a data rate many times faster than the access time of the memory array itself. While data is being multiplexed out serially, the memory array is accessed with the next required address and presents its data to the buffer storage before the serial multiplexing of the last group of data is completed, allowing this new data to then be latched into the buffer storage for smooth continuous serial data output. In a preferred implementation, a plurality of these serial data outputs are paralleled to form the input to a digital to analog converter, providing a programmable analog output. 6 figs.

    10. Digitally programmable signal generator and method

      DOEpatents

      Priatko, Gordon J.; Kaskey, Jeffrey A.

      1989-01-01

      A digitally programmable waveform generator for generating completely arbitrary digital or analog waveforms from very low frequencies to frequencies in the gigasample per second range. A memory array with multiple parallel outputs is addressed; then the parallel output data is latched into buffer storage from which it is serially multiplexed out at a data rate many times faster than the access time of the memory array itself. While data is being multiplexed out serially, the memory array is accessed with the next required address and presents its data to the buffer storage before the serial multiplexing of the last group of data is completed, allowing this new data to then be latched into the buffer storage for smooth continuous serial data output. In a preferred implementation, a plurality of these serial data outputs are paralleled to form the input to a digital to analog converter, providing a programmable analog output.

    11. Delivering Insight The History of the Accelerated Strategic Computing Initiative

      SciTech Connect

      Larzelere II, A R

      2007-01-03

      The history of the Accelerated Strategic Computing Initiative (ASCI) tells of the development of computational simulation into a third fundamental piece of the scientific method, on a par with theory and experiment. ASCI did not invent the idea, nor was it alone in bringing it to fruition. But ASCI provided the wherewithal - hardware, software, environment, funding, and, most of all, the urgency - that made it happen. On October 1, 2005, the Initiative completed its tenth year of funding. The advances made by ASCI over its first decade are truly incredible. Lawrence Livermore, Los Alamos, and Sandia National Laboratories, along with leadership provided by the Department of Energy's Defense Programs Headquarters, fundamentally changed computational simulation and how it is used to enable scientific insight. To do this, astounding advances were made in simulation applications, computing platforms, and user environments. ASCI dramatically changed existing - and forged new - relationships, both among the Laboratories and with outside partners. By its tenth anniversary, despite daunting challenges, ASCI had accomplished all of the major goals set at its beginning. The history of ASCI is about the vision, leadership, endurance, and partnerships that made these advances possible.

    12. Computers for Learning

      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...

    13. Cognitive Computing for Security.

      SciTech Connect

      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.

    14. Computers in Commercial Buildings

      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...

    15. Human-computer interface incorporating personal and application domains

      DOEpatents

      Anderson, Thomas G.

      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.

    16. Human-computer interface incorporating personal and application domains

      DOEpatents

      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.

    17. Human-computer interface including haptically controlled interactions

      DOEpatents

      Anderson, Thomas G.

      2005-10-11

      The present invention provides a method of human-computer interfacing that provides haptic feedback to control interface interactions such as scrolling or zooming within an application. Haptic feedback in the present method allows the user more intuitive control of the interface interactions, and allows the user's visual focus to remain on the application. The method comprises providing a control domain within which the user can control interactions. For example, a haptic boundary can be provided corresponding to scrollable or scalable portions of the application domain. The user can position a cursor near such a boundary, feeling its presence haptically (reducing the requirement for visual attention for control of scrolling of the display). The user can then apply force relative to the boundary, causing the interface to scroll the domain. The rate of scrolling can be related to the magnitude of applied force, providing the user with additional intuitive, non-visual control of scrolling.

    18. Digital Instrumentation and Control Failure Events Derivation and Analysis by Frame-Based Technique

      SciTech Connect

      Hui-Wen Huang; Chunkuan Shih [National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013 (China); Swu Yih [DML International, 18F-1 295, Section 2 Kuang Fu Road, Hsinchu, Taiwan (China); Yen-Chang Tzeng; Ming-Huei Chen [Institute of Nuclear Energy Research, No. 1000, Wunhua Rd., Jiaan Village, Longtan Township, Taoyuan County 32546, Taiwan (China)

      2006-07-01

      A frame-based technique, including physical frame, logical frame, and cognitive frame, was adopted to perform digital I and C failure events derivation and analysis for generic ABWR. The physical frame was structured with a modified PCTran-ABWR plant simulation code, which was extended and enhanced on the feedwater system, recirculation system, and steam line system. The logical model is structured with MATLAB, which was incorporated into PCTran-ABWR to improve the pressure control system, feedwater control system, recirculation control system, and automated power regulation control system. As a result, the software failure of these digital control systems can be properly simulated and analyzed. The cognitive frame was simulated by the operator awareness status in the scenarios. Moreover, via an internal characteristics tuning technique, the modified PCTran-ABWR can precisely reflect the characteristics of the power-core flow. Hence, in addition to the transient plots, the analysis results can then be demonstrated on the power-core flow map. A number of postulated I and C system software failure events were derived to achieve the dynamic analyses. The basis for event derivation includes the published classification for software anomalies, the digital I and C design data for ABWR, chapter 15 accident analysis of generic SAR, and the reported NPP I and C software failure events. The case study of this research includes (1) the software CMF analysis for the major digital control systems; and (2) postulated ABWR digital I and C software failure events derivation from the actual happening of non-ABWR digital I and C software failure events, which were reported to LER of USNRC or IRS of IAEA. These events were analyzed by PCTran-ABWR. Conflicts among plant status, computer status, and human cognitive status are successfully identified. The operator might not easily recognize the abnormal condition, because the computer status seems to progress normally. However, a well

    19. Computers-BSA.ppt

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

      Energy Computers, Electronics and Electrical Equipment (2010 MECS) Computers, Electronics and Electrical Equipment (2010 MECS) Manufacturing Energy and Carbon Footprint for Computers, Electronics and Electrical Equipment Sector (NAICS 334, 335) Energy use data source: 2010 EIA MECS (with adjustments) Footprint Last Revised: February 2014 View footprints for other sectors here. Manufacturing Energy and Carbon Footprint Computers, Electronics and Electrical Equipment (123.71 KB) More Documents

    20. Advanced Scientific Computing Research

      U.S. Department of Energy (DOE) - all 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 Galen Shipman (505) 665-4021 Email Fulfilling the potential of emerging computing systems and architectures beyond today's tools and techniques to deliver

    1. Argonne Leadership Computing Facility

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

      ARGONNE LEADERSHIP COMPUTING FACILITY The 10-petaflops Mira supercomputer The Argonne Leadership Computing Facility (ALCF), a U.S. Department of Energy (DOE) Office of Science User Facility, provides its user community with computing time and staff support to pursue significant breakthroughs in science and engineering. The ALCF is one of two DOE leadership computing facilities in the nation dedicated to open science. www.alcf.anl.gov ENABLING SCIENCE With hundreds of thousands of processors

    2. Tutorial on computer control

      SciTech Connect

      Juras, R.C.

      1987-09-01

      This paper discusses computer architecture modfications and development used to control particle accelerators. 6 refs., 3 figs.

    3. Computing Resources | Argonne Leadership Computing Facility

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

      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 ...

    4. Fermilab | Science at Fermilab | Computing | Grid Computing

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

      which would collect more data than any computing center in existence could process. ... consortium grid called Open Science Grid, so they initiated a project known as FermiGrid. ...

    5. Mathematical and Computational Epidemiology

      U.S. Department of Energy (DOE) - all 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

    6. Computing environment logbook

      DOEpatents

      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.

    7. BNL ATLAS Grid Computing

      ScienceCinema

      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,

    8. Computer-assisted data acquisition on Josephson junctions

      SciTech Connect

      Pagano, S. ); Costabile, G.; Fedullo, V.

      1989-09-01

      An automatic digital data-acquisition system for the test and characterization of superconducting Josephson tunnel junctions is presented. The key feature is represented by the high degree of interaction of the measurement system with the device under test. This is accomplished by an iterated sequence of data acquisitions, automatic analysis, and subsequent modifications of the control signals in the device. In this way, the basic calibration and the value of the relevant quantities involved with the Josephson junction are automatically determined. A connection with a host computer makes possible more complex data analysis, while the full control of the experiment by a dedicated computer allows the operator to perform nonroutine procedures.

    9. COMPUTATIONAL SCIENCE CENTER

      SciTech Connect

      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.

    10. Scalable optical quantum computer

      SciTech Connect

      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)

    11. Sandia National Laboratories: Sandia Digital Media

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

      Sandia Digital Media Now Playing Featured Categories At Sandia Community Service Energy Engineering - Nuclear Health-Safety Historical Material National Security Sciences and Engineering Technical Training Search Videos Webinars There are no current webinars at this time. For Media Browse Sandia's Media B-Roll. For additional information, view Sandia's Media Contacts and Resources page.

    12. Consortium on Digital Energy CoDE | Open Energy Information

      OpenEI (Open Energy Information) [EERE & EIA]

      on Digital Energy CoDE Jump to: navigation, search Name: Consortium on Digital Energy (CoDE) Place: London, England, United Kingdom Zip: EC2A 1QP Product: London-based consortium...

    13. Development of GEM-Based Digital Hadron Calorimetry Using the...

      Office of Scientific and Technical Information (OSTI)

      Conference: Development of GEM-Based Digital Hadron Calorimetry Using the SLAC KPiX Chip Citation Details In-Document Search Title: Development of GEM-Based Digital Hadron...

    14. Additional Guidance for EERE Digital Data Management Plans | Department of

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

      Energy Apply for Funding » Digital Data Management » Additional Guidance for EERE Digital Data Management Plans Additional Guidance for EERE Digital Data Management Plans Beyond the Office of Energy Efficiency and Renewable Energy (EERE) digital data management requirements, the following additional guidance is provided for data management plans (DMPs): The principal investigator should determine which data should be the subject of the DMP and make sure that the DMP addresses which data

    15. Design guidelines for SAR digital receiver/exciter boards.

      SciTech Connect

      Dudley, Peter A.

      2009-08-01

      High resolution radar systems generally require combining fast analog to digital converters and digital to analog converters with very high performance digital signal processing logic. These mixed analog and digital printed circuit boards present special challenges with respect to electromagnetic interference. This document first describes the mechanisms of interference on such boards then follows up with a discussion of prevention techniques and finally provides a checklist for designers to help avoid common mistakes.

    16. Midcontinent Interactive Digital Carbon Atlas and Relational Database (MIDCARB)

      SciTech Connect

      Timothy R. Carr; Scott W. White

      2002-06-01

      This annual report describes progress of the project entitled ''Midcontinent Interactive Digital Carbon Atlas and Relational Database (MIDCARB)''. This project, funded by the Department of Energy, is a cooperative project that assembles a consortium of five states (Indiana, Illinois, Kansas, Kentucky and Ohio) to construct an online distributed Relational Database Management System (RDBMS) and Geographic Information System (GIS) covering aspects of carbon dioxide geologic sequestration (http://www.midcarb.org). The system links the five states in the consortium into a coordinated regional database system consisting of datasets useful to industry, regulators and the public. The project is working to provide advanced distributed computing solutions to link database servers across the five states into a single system where data is maintained at the local level but is accessed through a single Web portal and can be queried, assembled, analyzed and displayed. Each individual state has strengths in data gathering, data manipulation and data display, including GIS mapping, custom application development, web development, and database design. Sharing of expertise provides the critical mass of technical expertise to improve CO{sub 2} databases and data access in all states. This project improves the flow of data across servers in the five states and increases the amount and quality of available digital data. The MIDCARB project is developing improved online tools to provide real-time display and analyze CO{sub 2} sequestration data. The system links together data from sources, sinks and transportation within a spatial database that can be queried online. Visualization of high quality and current data can assist decision makers by providing access to common sets of high quality data in a consistent manner.

    17. Sandia National Laboratories: Rebooting computing

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

      neural computing to extend Moore's Law Image credit: NICHDS. Jeong. Facebook ... Sandia explores neural computing to extend Moore's Law Computation is stuck in a rut. The ...

    18. Sandia Energy - High Performance Computing

      U.S. Department of Energy (DOE) - all 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...

    19. Perona Malik anisotropic diffusion model using Peaceman Rachford scheme on digital radiographic image

      SciTech Connect

      Halim, Suhaila Abd; Razak, Rohayu Abd; Ibrahim, Arsmah; Manurung, Yupiter HP

      2014-06-19

      In image processing, it is important to remove noise without affecting the image structure as well as preserving all the edges. Perona Malik Anisotropic Diffusion (PMAD) is a PDE-based model which is suitable for image denoising and edge detection problems. In this paper, the Peaceman Rachford scheme is applied on PMAD to remove unwanted noise as the scheme is efficient and unconditionally stable. The capability of the scheme to remove noise is evaluated on several digital radiography weld defect images computed using MATLAB R2009a. Experimental results obtained show that the Peaceman Rachford scheme improves the image quality substantially well based on the Peak Signal to Noise Ratio (PSNR). The Peaceman Rachford scheme used in solving the PMAD model successfully removes unwanted noise in digital radiographic image.

    20. COMPUTATIONAL SCIENCE CENTER

      SciTech Connect

      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

    1. ARGONNE LEADERSHIP COMPUTING FACILITY

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

      SCIENCE ARGONNE LEADERSHIP COMPUTING FACILITY On the cover Collapse of spherical cloud with 50,000 bubbles. The generation of microjets directed toward the cloud center causes the formation of cap-like bubble shapes. Image credit: Computational Science and Engineering Laboratory, ETH Zürich, Switzerland ARGONNE LEADERSHIP COMPUTING FACILITY 2016 SCIENCE HIGHLIGHTS 2016 ALCF SCIENCE HIGHLIGHTS 1 TABLE OF CONTENTS 4 About ALCF 5 Science Director's Message 6 Allocation and Application Programs

    2. Scientific Cloud Computing Misconceptions

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

      Scientific Cloud Computing Misconceptions Scientific Cloud Computing Misconceptions July 1, 2011 Part of the Magellan project was to understand both the possibilities and the limitations of cloud computing in the pursuit of science. At a recent conference, Magellan investigator Shane Canon outlined some persistent misconceptions about doing science in the cloud - and what Magellan has taught us about them. » Read the ISGTW story. » Download the slides (PDF, 4.1MB

    3. NERSC Computer Security

      U.S. Department of Energy (DOE) - all 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 modification. Among NERSC's security goal are: 1. To protect NERSC systems from unauthorized access. 2. To prevent the interruption of services to its users. 3. To prevent misuse or abuse of NERSC resources. Security Incidents If you think there has been a computer security incident you should contact NERSC Security as soon as

    4. Computer Architecture Lab

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

      FastForward CAL Partnerships Shifter: User Defined Images Archive APEX TOKIO: Total Knowledge of I/O Home » R & D » Exascale Computing » CAL Computer Architecture Lab The goal of the Computer Architecture Laboratory (CAL) is engage in research and development into energy efficient and effective processor and memory architectures for DOE's Exascale program. CAL coordinates hardware architecture R&D activities across the DOE. CAL is a joint NNSA/SC activity involving Sandia National

    5. Edison Electrifies Scientific Computing

      U.S. Department of Energy (DOE) - all 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

    6. Applied Computer Science

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

      7 Applied Computer Science Innovative co-design of applications, algorithms, and architectures in order to enable scientific simulations at extreme scale Leadership Group Leader ...

    7. computational fluid dynamics

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

      computational fluid dynamics - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary ...

    8. Personal Computer Inventory System

      Energy Science and Technology Software Center

      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.

    9. Argonne Leadership Computing Facility

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

      ... of energy's (Doe) Advanced Scientific Computing research program within the ... review by an international panel of experts ... The refereed journal articles and conference ...

    10. 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

    11. Recording multiple spatially-heterodyned direct to digital holograms in one digital image

      DOEpatents

      Hanson, Gregory R.; Bingham, Philip R.

      2008-03-25

      Systems and methods are described for recording multiple spatially-heterodyned direct to digital holograms in one digital image. A method includes digitally recording, at a first reference beam-object beam angle, a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram to sit on top of a first spatial-heterodyne carrier frequency defined by the first reference beam-object beam angle; digitally recording, at a second reference beam-object beam angle, a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram to sit on top of a second spatial-heterodyne carrier frequency defined by the second reference beam-object beam angle; applying a first digital filter to cut off signals around the first original origin and define a first result; performing a first inverse Fourier transform on the first result; applying a second digital filter to cut off signals around the second original origin and define a second result; and performing a second inverse Fourier transform on the second result, wherein the first reference beam-object beam angle is not equal to the second reference beam-object beam angle and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

    12. The Focusing DIRC with Waveform Digitizing Electronics

      SciTech Connect

      Ruckman, L.L.; Nishimura, K.; Varner, G.S.; Vavra, J.; Aston, D.; Leith, D.W.G.S.; Ratcliff, B.; /SLAC

      2012-06-15

      We have tested a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC) with waveform digitizing electronics. The prototype's concept is based on the BaBar DIRC with several important improvements: (a) much faster, pixelated photon detectors, (b) a mirror that makes the photon detector smaller and less sensitive to background in future applications, and (c) electronics capable of measuring single photon resolution to {sigma} {approx} 150 ps, which allows for correction due to chromatic error. In this test, the prototype has been instrumented with seven Hamamatsu H-8500 MaPMTs. Waveforms from {approx}450 pixels are digitized with waveform sampling electronics based on the BLAB2 ASIC, operating at a sampling speed of {approx}2.5 GSa/s. This version of the FDIRC prototype was tested in a large cosmic ray telescope providing muon tracks with {approx}1 mrad angular resolution and a muon momentum cutoff of {ge} 1.6 GeV/c.

    13. Software and High Performance Computing

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

      Computational physics, computer science, applied mathematics, statistics and the ... a fully operational supercomputing environment Providing Current Capability Scientific ...

    14. The Digital Road to Scientific Knowledge Diffusion

      Office of Scientific and Technical Information (OSTI)

      Digital Road to Scientific Knowledge Diffusion A Faster, Better Way to Scientific Progress? By David E. Wojick, Walter L. Warnick, Bonnie C. Carroll, and June Crowe Introduction With the United States federal government spending over $130 billion annually for research and development, ways to increase the productivity of that research can have a significant return on investment. It is well known that all scientific advancement is based on work that has come before. Isaac Newton expressed this

    15. Digital I and C system upgrade integration technique

      SciTech Connect

      Huang, H. W.; Shih, C.; Wang, J. R.; Huang, K. C.

      2012-07-01

      This work developed an integration technique for digital I and C system upgrade, the utility can replace the I and C systems step by step systematically by this method. Inst. of Nuclear Energy Research (INER) developed a digital Instrumentation and Control (I and C) replacement integration technique on the basis of requirement of the three existing nuclear power plants (NPPs), which are Chin-Shan (CS) NPP, Kuo-Sheng (KS) NPP, and Maanshan (MS) NPP, in Taiwan, and also developed the related Critical Digital Review (CDR) Procedure. The digital I and C replacement integration technique includes: (I) Establishment of Nuclear Power Plant Digital Replacement Integration Guideline, (2) Preliminary Investigation on I and C System Digitalization, (3) Evaluation on I and C System Digitalization, and (4) Establishment of I and C System Digitalization Architectures. These works can be a reference for performing I and C system digital replacement integration of the three existing NPPs of Taiwan Power Company (TPC). A CDR is the review for a critical system digital I and C replacement. The major reference of this procedure is EPRI TR- 1011710 (2005) 'Handbook for Evaluating Critical Digital Equipment and Systems' which was published by the Electric Power Research Inst. (EPRI). With this document, INER developed a TPC-specific CDR procedure. Currently, CDR becomes one of the policies for digital I and C replacement in TPC. The contents of this CDR procedure include: Scope, Responsibility, Operation Procedure, Operation Flow Chart, CDR review items. The CDR review items include the comparison of the design change, Software Verification and Validation (SVandV), Failure Mode and Effects Analysis (FMEA), Evaluation of Diversity and Defense-in-depth (D3), Evaluation of Watchdog Timer, Evaluation of Electromagnetic Compatibility (EMC), Evaluation of Grounding for System/Component, Seismic Evaluation, Witness and Inspection, Lessons Learnt from the Digital I and C Failure Events. A

    16. DIGITAL TECHNOLOGY BUSINESS CASE METHODOLOGY GUIDE & WORKBOOK

      SciTech Connect

      Thomas, Ken; Lawrie, Sean; Hart, Adam; Vlahoplus, Chris

      2014-09-01

      Performance advantages of the new digital technologies are widely acknowledged, but it has proven difficult for utilities to derive business cases for justifying investment in these new capabilities. Lack of a business case is often cited by utilities as a barrier to pursuing wide-scale application of digital technologies to nuclear plant work activities. The decision to move forward with funding usually hinges on demonstrating actual cost reductions that can be credited to budgets and thereby truly reduce O&M or capital costs. Technology enhancements, while enhancing work methods and making work more efficient, often fail to eliminate workload such that it changes overall staffing and material cost requirements. It is critical to demonstrate cost reductions or impacts on non-cost performance objectives in order for the business case to justify investment by nuclear operators. This Business Case Methodology approaches building a business case for a particular technology or suite of technologies by detailing how they impact an operator in one or more of the three following areas: Labor Costs, Non-Labor Costs, and Key Performance Indicators (KPIs). Key to those impacts will be identifying where the savings are harvestable, meaning they result in an actual reduction in headcount and/or cost. The report consists of a Digital Technology Business Case Methodology Guide and an accompanying spreadsheet workbook that will enable the user to develop a business case.

    17. Computer Processor Allocator

      Energy Science and Technology Software Center

      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.

    18. Indirection and computer security.

      SciTech Connect

      Berg, Michael J.

      2011-09-01

      The discipline of computer science is built on indirection. David Wheeler famously said, 'All problems in computer science can be solved by another layer of indirection. But that usually will create another problem'. We propose that every computer security vulnerability is yet another problem created by the indirections in system designs and that focusing on the indirections involved is a better way to design, evaluate, and compare security solutions. We are not proposing that indirection be avoided when solving problems, but that understanding the relationships between indirections and vulnerabilities is key to securing computer systems. Using this perspective, we analyze common vulnerabilities that plague our computer systems, consider the effectiveness of currently available security solutions, and propose several new security solutions.

    19. Visual-servoing optical microscopy

      DOEpatents

      Callahan, Daniel E.; Parvin, Bahram

      2009-06-09

      The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time: quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

    20. Visual-servoing optical microscopy

      DOEpatents

      Callahan, Daniel E.; Parvin, Bahram

      2011-05-24

      The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time; quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

    1. Visual-servoing optical microscopy

      DOEpatents

      Callahan, Daniel E; Parvin, Bahram

      2013-10-01

      The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time; quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

    2. A transputer-based list mode parallel system for digital radiography with 2D silicon detectors

      SciTech Connect

      Conti, M.; Russo, P.; Scarlatella, A. . Dipt. di Scienze Fisiche and INFN); Del Guerra, A. . Dipt. di Fisica and INFN); Mazzeo, A.; Mazzocca, N.; Russo, S. . Dipt. di Informatica e Sistemistica)

      1993-08-01

      The authors believe that a dedicated parallel computer system can represent an effective and flexible approach to the problem of list mode acquisition and reconstruction of digital radiographic images obtained with a double-sided silicon microstrip detector. They present a Transputer-based implementation of a parallel system for the data acquisition and image reconstruction from a silicon crystal with 200[mu]m read-out pitch. They are currently developing a prototype of the system connected to a detector with a 10mm[sup 2] sensitive area.

    3. Software Synthesis for High Productivity Exascale Computing

      SciTech Connect

      Bodik, Rastislav

      2010-09-01

      Over the three years of our project, we accomplished three key milestones: We demonstrated how ideas from generative programming and software synthesis can help support the development of bulk-synchronous distributed memory kernels. These ideas are realized in a new language called MSL, a C-like language that combines synthesis features with high level notations for array manipulation and bulk-synchronous parallelism to simplify the semantic analysis required for synthesis. We also demonstrated that these high level notations map easily to low level C code and show that the performance of this generated code matches that of handwritten Fortran. Second, we introduced the idea of solver-aided domain-specific languages (SDSLs), which are an emerging class of computer-aided programming systems. SDSLs ease the construction of programs by automating tasks such as verification, debugging, synthesis, and non-deterministic execution. SDSLs are implemented by translating the DSL program into logical constraints. Next, we developed a symbolic virtual machine called Rosette, which simplifies the construction of such SDSLs and their compilers. We have used Rosette to build SynthCL, a subset of OpenCL that supports synthesis. Third, we developed novel numeric algorithms that move as little data as possible, either between levels of a memory hierarchy or between parallel processors over a network. We achieved progress in three aspects of this problem. First we determined lower bounds on communication. Second, we compared these lower bounds to widely used versions of these algorithms, and noted that these widely used algorithms usually communicate asymptotically more than is necessary. Third, we identified or invented new algorithms for most linear algebra problems that do attain these lower bounds, and demonstrated large speed-ups in theory and practice.

    4. X-ray Digital Radiography and Computed Tomography of ICF and HEDP Materials, Subassemblies and Targets

      SciTech Connect

      Brown, W D; Martz Jr., H E

      2006-05-31

      Inertial confinement fusion (ICF) and high energy density physics (HEDP) research are being conducted at large laser facilities, such as the University of Rochester's Laboratory for Laser Energetics OMEGA facility and the Lawrence Livermore National Laboratory's (LLNL) National Ignition Facility (NIF). At such facilities, millimeter-sized targets with micrometer structures are studied in a variety of hydrodynamic, radiation transport, equation-of-state, inertial confinement fusion and high-energy density experiments. The extreme temperatures and pressures achieved in these experiments make the results susceptible to imperfections in the fabricated targets. Targets include materials varying widely in composition ({approx}3 < Z < {approx}82), density ({approx}0.03 to {approx}20 g/cm{sup 3}), geometry (planar to spherical) and embedded structures (joints to subassemblies). Fabricating these targets with structures to the tolerances required is a challenging engineering problem the ICF and HEDP community are currently undertaking. Nondestructive characterization (NDC) provides a valuable tool in material selection, component inspection, and the final pre-shot assemblies inspection. X-rays are a key method used to NDC these targets. In this paper we discuss X-ray attenuation, X-ray phase effects, and the X-ray system used, its performance and application to characterize low-temperature Raleigh-Taylor and non-cryogenic double-shell targets.

    5. Design of Mega-Voltage X-ray Digital Radiography and Computed Tomography Performance Phantoms

      SciTech Connect

      Aufderheide, M B; Martz, H E; Curtin, M

      2009-06-22

      A number of fundamental scientific questions have arisen concerning the operation of high-energy DR and CT systems. Some of these questions include: (1) How deeply can such systems penetrate thickly shielded objects? (2) How well can such systems distinguish between dense and relatively high Z materials such as lead, tungsten and depleted uranium and lower Z materials such as steel, copper and tin? (3) How well will such systems operate for a uranium material which is an intermediate case between low density yellowcake and high density depleted uranium metal? These questions have led us to develop a set of phantoms to help answer these questions, but do not have any direct bearing on any smuggling concern. These new phantoms are designed to allow a systemic exploration of these questions by gradually varying their compositions and thicknesses. These phantoms are also good probes of the blurring behavior of radiography and tomography systems. These phantoms are composed of steel ({rho} assumed to be 7.8 g/cc), lead ({rho} assumed to be 11.4 g/cc), tungsten ({rho} assumed to be 19.25 g/cc), uranium oxide (UO{sub 3}) ({rho} assumed to be 4.6 g/cc), and depleted uranium (DU) ({rho} assumed to be 18.9 g/cc). There are five designed phantoms described in this report: (1) Cylindrical shells of Tungsten and Steel; (2) Depleted Uranium Inside Tungsten Hemi-cube Shells; (3) Nested Spherical Shells; (4) UO{sub 3} Cylinder; and (5) Shielded DU Sphere.

    6. Energy Aware Computing

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

      Partnerships Shifter: User Defined Images Archive APEX TOKIO: Total Knowledge of I/O 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

    7. Computational Science and Innovation

      SciTech Connect

      Dean, David Jarvis

      2011-01-01

      Simulations - utilizing computers to solve complicated science and engineering problems - are a key ingredient of modern science. The U.S. Department of Energy (DOE) is a world leader in the development of high-performance computing (HPC), the development of applied math and algorithms that utilize the full potential of HPC platforms, and the application of computing to science and engineering problems. An interesting general question is whether the DOE can strategically utilize its capability in simulations to advance innovation more broadly. In this article, I will argue that this is certainly possible.

    8. Convergence: Computing and communications

      SciTech Connect

      Catlett, C.

      1996-12-31

      This paper highlights the operations of the National Center for Supercomputing Applications (NCSA). NCSA is developing and implementing a national strategy to create, use, and transfer advanced computing and communication tools and information technologies for science, engineering, education, and business. The primary focus of the presentation is historical and expected growth in the computing capacity, personal computer performance, and Internet and WorldWide Web sites. Data are presented to show changes over the past 10 to 20 years in these areas. 5 figs., 4 tabs.

    9. Computer surety: computer system inspection guidance. [Contains glossary

      SciTech Connect

      Not Available

      1981-07-01

      This document discusses computer surety in NRC-licensed nuclear facilities from the perspective of physical protection inspectors. It gives background information and a glossary of computer terms, along with threats and computer vulnerabilities, methods used to harden computer elements, and computer audit controls.

    10. Computing and Computational Sciences Directorate - National Center for

      U.S. Department of Energy (DOE) - all webpages

      Computational Sciences Search Go! ORNL * Find People * Contact * Site Index * Comments Home Divisions and Centers Computational Sciences and Engineering Computer Science and Mathematics Information Technology Joint Institute for Computational Sciences National Center for Computational Sciences Supercomputing Projects Awards Employment Opportunities Student Opportunities About Us Organization In the News Contact Us Visitor Information ORNL Research Areas Neutron Sciences Biological Systems

    11. Argonne Leadership Computing Facility

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

      A Q&A with the ALCF's team lead for high-performance computing infrastructure. Read More Theta ESP hands-on workshop Early science teams prepare for Theta at hands-on workshop ...

    12. Cloud computing security.

      SciTech Connect

      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.

    13. Edison Electrifies Scientific Computing

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

      ... Deployment of Edison was made possible in part by funding from DOE's Office of Science and the DARPA High Productivity Computing Systems program. DOE's Office of Science is the ...

    14. Computation supporting biodefense

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

      Conference on High-Speed Computing LANL / LLNL / SNL Salishan Lodge, Gleneden Beach, Oregon 24 April 2003 Murray Wolinsky murray@lanl.gov The Role of Computation in Biodefense 1. Biothreat 101 2. Bioinformatics 101 Examples 3. Sequence analysis: mpiBLAST Feng 4. Detection: KPATH Slezak 5. Protein structure: ROSETTA Strauss 6. Real-time epidemiology: EpiSIMS Eubank 7. Forensics: VESPA Myers, Korber 8. Needs System level analytical capabilities Enhanced phylogenetic algorithms Novel

    15. Computational Earth Science

      U.S. Department of Energy (DOE) - all 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

    16. Computational Modeling | Bioenergy | NREL

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

      Computational Modeling NREL uses computational modeling to increase the efficiency of biomass conversion by rational design using multiscale modeling, applying theoretical approaches, and testing scientific hypotheses. model of enzymes wrapping on cellulose; colorful circular structures entwined through blue strands Cellulosomes are complexes of protein scaffolds and enzymes that are highly effective in decomposing biomass. This is a snapshot of a coarse-grain model of complex cellulosome

    17. Computational Physics and Methods

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

      ADTSC » CCS » CCS-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

    18. Exascale Computing Project

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

      Asteroid ALPINE project, xRage simulation Asteroid yA31 at a 45 degree angle of entry ExaSky particles ExaSky project Next-generation dark matter cosmology simulations Trinity computer Trinity: Advanced Technology System Advancing Predictive Capability for Stockpile Stewardship READ MORE Legion programming system Legion programming system Managing complex data and control dependencies READ MORE Meeting national security science challenges with reliable computing As part of the National Strategic

    19. New TRACC Cluster Computer

      U.S. Department of Energy (DOE) - all 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.

    20. Applied Computer Science

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

      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 David Daniel (Acting) Email Professional Assistant Erika Maestas 505-664-0673 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

    1. Theory, Simulation, and Computation

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

      PADSTE » ADTSC Theory, Simulation, and Computation Supporting the Laboratory's overarching strategy to provide cutting-edge tools to guide and interpret experiments and further our fundamental understanding and predictive capabilities for complex systems. Theory, modeling, informatics Suites of experiment data High performance computing, simulation, visualization Contacts Associate Director John Sarrao Deputy Associate Director Paul Dotson Directorate Office (505) 667-6645 Email Applying the

    2. Compute Reservation Request Form

      U.S. Department of Energy (DOE) - all 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

    3. 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

    4. 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

    5. Neuromorphic Computing – From Materials Research to Systems Architecture Roundtable

      SciTech Connect

      Schuller, Ivan K.; Stevens, Rick; Pino, Robinson; Pechan, Michael

      2015-10-29

      Computation in its many forms is the engine that fuels our modern civilization. Modern computation—based on the von Neumann architecture—has allowed, until now, the development of continuous improvements, as predicted by Moore’s law. However, computation using current architectures and materials will inevitably—within the next 10 years—reach a limit because of fundamental scientific reasons. DOE convened a roundtable of experts in neuromorphic computing systems, materials science, and computer science in Washington on October 29-30, 2015 to address the following basic questions: Can brain-like (“neuromorphic”) computing devices based on new material concepts and systems be developed to dramatically outperform conventional CMOS based technology? If so, what are the basic research challenges for materials sicence and computing? The overarching answer that emerged was: The development of novel functional materials and devices incorporated into unique architectures will allow a revolutionary technological leap toward the implementation of a fully “neuromorphic” computer. To address this challenge, the following issues were considered: The main differences between neuromorphic and conventional computing as related to: signaling models, timing/clock, non-volatile memory, architecture, fault tolerance, integrated memory and compute, noise tolerance, analog vs. digital, and in situ learning New neuromorphic architectures needed to: produce lower energy consumption, potential novel nanostructured materials, and enhanced computation Device and materials properties needed to implement functions such as: hysteresis, stability, and fault tolerance Comparisons of different implementations: spin torque, memristors, resistive switching, phase change, and optical schemes for enhanced breakthroughs in performance, cost, fault tolerance, and/or manufacturability.

    6. Critical Materials Institute - invention disclosures

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

      a>

    7. High Command Fidelity Electromagnetically Driven Calorimeter (High-CoFi EleDriCal)
      Patent...

    8. Intro to computer programming, no computer required! | Argonne...

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

      ... "Computational thinking requires you to think in abstractions," said Papka, who spoke to computer science and computer-aided design students at Kaneland High School in Maple Park about ...

    9. Impact of Utility Rates on PV Economics - Digital Appendix |...

      OpenEI (Open Energy Information) [EERE & EIA]

      for The Impacts of Utility Rates and Building Type on the Economics of Commercial Photovoltaic Systems. This digital appendix contains supplement material for the NREL technical...

    10. EERE Digital Data Management Frequently Asked Questions | Department...

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

      Frequently Asked Questions EERE Digital Data Management Frequently Asked Questions Submitting a Data Management Plan 1. I am submitting an applicationproposal for research funding ...

    11. DOE Policy for Digital Research Data Management: Suggested Elements...

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

      Suggested Elements for a Data Management Plan DOE Policy for Digital Research Data Management: Suggested Elements for a Data Management Plan The Principal Investigator or other ...

    12. EERE Digital Data Management Glossary | Department of Energy

      Energy.gov [DOE] (indexed site)

      Digital data management glossary terms are defined below. Data preservation: Data preservation means providing for the usability of data beyond the lifetime of the research ...

    13. Physical + Digital: The New Power Couple |GE Global Research

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

      Physical + Digital = the New Power Couple Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Physical + Digital = the New Power Couple Birthed from the marriage of physical and digital industrial concepts, Digital Twin is GE's foundational analytic that aims to bring increased insight, understanding, and added value to

    14. Human Reliability Analysis for Digital Human-Machine Interfaces

      SciTech Connect

      Ronald L. Boring

      2014-06-01

      This paper addresses the fact that existing human reliability analysis (HRA) methods do not provide guidance on digital human-machine interfaces (HMIs). Digital HMIs are becoming ubiquitous in nuclear power operations, whether through control room modernization or new-build control rooms. Legacy analog technologies like instrumentation and control (I&C) systems are costly to support, and vendors no longer develop or support analog technology, which is considered technologically obsolete. Yet, despite the inevitability of digital HMI, no current HRA method provides guidance on how to treat human reliability considerations for digital technologies.

    15. Sandia Energy - Digital In-Line Holography Helps Researchers...

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

      droplets of fuel are generated and behave in such cases. Sandia researchers developed 3-D measurement techniques based on digital in-line holography (DIH). Sandia advanced DIH...

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

      U.S. Department of Energy (DOE) - all 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,...

    17. MIDCONTINENT INTERACTIVE DIGITAL CARBON ATLAS AND RELATIONAL DATABASE (MIDCARB)

      SciTech Connect

      Timothy R. Carr; Scott W. White

      2003-07-01

      This annual report describes progress in the second year of the three-year project entitled ''Midcontinent Interactive Digital Carbon Atlas and Relational Database (MIDCARB)''. This project, funded by the Department of Energy, is a cooperative project that assembles a consortium of five states (Indiana, Illinois, Kansas, Kentucky and Ohio) to construct an online distributed Relational Database Management System (RDBMS) and Geographic Information System (GIS) covering aspects of carbon dioxide geologic sequestration (http://www.midcarb.org). The system links the five states in the consortium into a coordinated regional database system consisting of datasets useful to industry, regulators and the public. The project is providing advanced distributed computing solutions to link database servers across the five states into a single system where data is maintained at the local level but is accessed through a single Web portal and can be queried, assembled, analyzed and displayed. Each individual state has strengths in data gathering, data manipulation and data display, including GIS mapping, custom application development, web development, and database design. Sharing of expertise provides the critical mass of technical expertise to improve CO{sub 2} databases and data access in all states. This project improves the flow of data across servers in the five states and increases the amount and quality of available digital data. Data is being assembled to analyze CO{sub 2} sequestration potential from a single object (e.g., power plant or well) to a region and across geographic boundaries. The MIDCARB system is robust and capable of being updated from multiple sources on a daily basis. The MIDCARB project has developed improved online tools to provide real-time display and analysis of CO{sub 2} sequestration data. The MIDCARB project is a functional template for distributed data systems to address CO{sub 2} sequestration and other natural resource issues that cross the

    18. Information Science, Computing, Applied Math

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

      Information Science, Computing, Applied Math 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» supercomputing into the future Overview Los Alamos Asteroid Killer

    19. computers | National Nuclear Security Administration

      National Nuclear Security Administration (NNSA)

      computers NNSA Announces Procurement of Penguin Computing Clusters to Support Stockpile Stewardship at National Labs The National Nuclear Security Administration's (NNSA's) Lawrence Livermore National Laboratory today announced the awarding of a subcontract to Penguin Computing - a leading developer of high-performance Linux cluster computing systems based in Silicon Valley - to bolster computing for stockpile... Sandia donates 242 computers to northern California schools Sandia National

    20. Extensible Computational Chemistry Environment

      Energy Science and Technology Software Center

      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

    21. Computer simulation | Open Energy Information

      OpenEI (Open Energy Information) [EERE & EIA]

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

    1. Super recycled water: quenching computers

      U.S. Department of Energy (DOE) - all 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 ...

    2. Information Science, Computing, Applied Math

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

      Information Science, Computing, Applied Math Information Science, Computing, Applied Math National security depends on science and technology. The United States relies on Los ...

    3. Fermilab | Science at Fermilab | Computing

      U.S. Department of Energy (DOE) - all 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 ...

    4. NREL: Computational Science Home Page

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

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

    5. Automated analysis for microcalcifications in high resolution digital mammograms

      DOEpatents

      Mascio, Laura N.

      1996-01-01

      A method for automatically locating microcalcifications indicating breast cancer. The invention assists mammographers in finding very subtle microcalcifications and in recognizing the pattern formed by all the microcalcifications. It also draws attention to microcalcifications that might be overlooked because a more prominent feature draws attention away from an important object. A new filter has been designed to weed out false positives in one of the steps of the method. Previously, iterative selection threshold was used to separate microcalcifications from the spurious signals resulting from texture or other background. A Selective Erosion or Enhancement (SEE) Filter has been invented to improve this step. Since the algorithm detects areas containing potential calcifications on the mammogram, it can be used to determine which areas need be stored at the highest resolution available, while, in addition, the full mammogram can be reduced to an appropriate resolution for the remaining cancer signs.

    6. Automated analysis for microcalcifications in high resolution digital mammograms

      DOEpatents

      Mascio, L.N.

      1996-12-17

      A method is disclosed for automatically locating microcalcifications indicating breast cancer. The invention assists mammographers in finding very subtle microcalcifications and in recognizing the pattern formed by all the microcalcifications. It also draws attention to microcalcifications that might be overlooked because a more prominent feature draws attention away from an important object. A new filter has been designed to weed out false positives in one of the steps of the method. Previously, iterative selection threshold was used to separate microcalcifications from the spurious signals resulting from texture or other background. A Selective Erosion or Enhancement (SEE) Filter has been invented to improve this step. Since the algorithm detects areas containing potential calcifications on the mammogram, it can be used to determine which areas need be stored at the highest resolution available, while, in addition, the full mammogram can be reduced to an appropriate resolution for the remaining cancer signs. 8 figs.

    7. Semantic Interaction for Visual Analytics: Toward Coupling Cognition and Computation

      SciTech Connect

      Endert, Alexander

      2014-07-01

      The dissertation discussed in this article [1] was written in the midst of an era of digitization. The world is becoming increasingly instrumented with sensors, monitoring, and other methods for generating data describing social, physical, and natural phenomena. Thus, data exist with the potential of being analyzed to uncover, or discover, the phenomena from which it was created. However, as the analytic models leveraged to analyze these data continue to increase in complexity and computational capability, how can visualizations and user interaction methodologies adapt and evolve to continue to foster discovery and sensemaking?

    8. Digital X-ray Pipe Inspector Software

      Energy Science and Technology Software Center

      2009-10-29

      The Digital X-ray Pipe Inspector software requires a digital x-ray image of a pipe as input to the program, such as the image in Attachment A Figure 1. The image may be in a variety of software formats such as bitmap, jpeg, tiff, DICOM or DICONDE. The software allows the user to interactively select a region of interest from the image for analysis. This software is used to analyze digital x-ray images of pipes tomore » evaluate loss of wall thickness. The software specifically provides tools to analyze the image in (a) the pipe walls, (b) between the pipe walls. Traditional software uses only the information at the pipe wall while this new software also evaluates the image between the pipewalls. This makes the inspection process faster, more thorough, more efficient, and reduces expensive reshots. Attachment A Figure 2 shows a region of interest (a green box) drawn by the user around an anomaly in the pipe wall. This area is automatically analyzed by the external pipe wall tool with the result shown in Attachment A Figure 3. The edges of the pipe wall are detected and highlighted in yellow and areas where the wall thickness in less the the minimum wall threshold are shown in red. These measurements are typically made manually in other software programs, which lead to errors and inconsistency because the location of the edges are estimated by the user. Attachment A Figure 4 shows a region of interest (a green box) drawn by the user between the pipe walls. As can be seen there are intensity anomalies that correspond to wall defects. However, this information is not used directly by other software programs. In order to fully investigate these anomalies, the pipe would be reinspected in a different orientation to attempt to obtain a view of the anomaly in the pipe wall rather than the interior of the pipe. The pipe may need to be x-rayed a number of times to obtain the correct orientation. This is very costly and time consuming. The new software can perform the

    9. Computation Directorate and Science& Technology Review Computational Science and Research Featured in 2002

      SciTech Connect

      Alchorn, A L

      2003-04-04

      't improve another 10 orders of magnitude in the next 50 years. For years I have heard talk of hitting the physical limits of Moore's Law, but new technologies will take us into the next phase of computer processing power such as 3-D chips, molecular computing, quantum computing, and more. Big computers are icons or symbols of the culture and larger infrastructure that exists at LLNL to guide scientific discovery and engineering development. We have dealt with balance issues for 50 years and will continue to do so in our quest for a digital proxy of the properties of matter at extremely high temperatures and pressures. I believe that the next big computational win will be the merger of high-performance computing with information management. We already create terabytes--soon to be petabytes--of data. Efficiently storing, finding, visualizing and extracting data and turning that into knowledge which aids decision-making and scientific discovery is an exciting challenge. In the meantime, please enjoy this retrospective on computational physics, computer science, advanced software technologies, and applied mathematics performed by programs and researchers at LLNL during 2002. It offers a glimpse into the stimulating world of computational science in support of the national missions and homeland defense.

    10. An introduction to computer viruses

      SciTech Connect

      Brown, D.R.

      1992-03-01

      This report on computer viruses is based upon a thesis written for the Master of Science degree in Computer Science from the University of Tennessee in December 1989 by David R. Brown. This thesis is entitled An Analysis of Computer Virus Construction, Proliferation, and Control and is available through the University of Tennessee Library. This paper contains an overview of the computer virus arena that can help the reader to evaluate the threat that computer viruses pose. The extent of this threat can only be determined by evaluating many different factors. These factors include the relative ease with which a computer virus can be written, the motivation involved in writing a computer virus, the damage and overhead incurred by infected systems, and the legal implications of computer viruses, among others. Based upon the research, the development of a computer virus seems to require more persistence than technical expertise. This is a frightening proclamation to the computing community. The education of computer professionals to the dangers that viruses pose to the welfare of the computing industry as a whole is stressed as a means of inhibiting the current proliferation of computer virus programs. Recommendations are made to assist computer users in preventing infection by computer viruses. These recommendations support solid general computer security practices as a means of combating computer viruses.

    11. Synchronizing compute node time bases in a parallel computer

      DOEpatents

      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.

    12. Synchronizing compute node time bases in a parallel computer

      DOEpatents

      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. Digital radiography exposure indices: A review

      SciTech Connect

      Mothiram, Ursula; Brennan, Patrick C; Lewis, Sarah J; Moran, Bernadette; Robinson, John

      2014-06-15

      Digital radiography (DR) technologies have the advantage of a wide dynamic range compared to their film-screen predecessors, however, this poses a potential for increased patient exposure if left unchecked. Manufacturers have developed the exposure index (EI) to counter this, which provides radiographers with feedback on the exposure reaching the detector. As these EIs were manufacturer-specific, a wide variety of EIs existed. To offset this, the international standardised EI has been developed by the International Electrotechnical Commission (IEC) and the American Association of Physicists in Medicine (AAPM). The purpose of this article is to explore the current literature relating to EIs, beginning with the historical development of the EI, the development of the standardised EI and an exploration of common themes and studies as evidenced in the research literature. It is anticipated that this review will provide radiographers with a useful guide to understanding EIs, their application in clinical practice, limitations and suggestions for further research.

    14. Digital reverse propagation in focusing Kerr media

      SciTech Connect

      Goy, Alexandre; Psaltis, Demetri

      2011-03-15

      Lenses allow the formation of clear images in homogeneous linear media. Holography is an alternative imaging method, but its use is limited to cases in which it provides an advantage, such as three-dimensional imaging. In nonlinear media, lenses no longer work. The light produces intensity-dependent aberrations. The reverse propagation method used in digital holography to form images from recorded holograms works even in Kerr media [M. Tsang, D. Psaltis, and F. G. Omenetto, Opt. Lett. 28, 1873 (2003).]. The principle has been experimentally demonstrated recently in defocusing media [C. Barsi, W.Wan, and J.W. Fleischer, Nat. Photonics 3, 211 (2009).]. Here, we report experimental results in focusing media.

    15. MHD computations for stellarators

      SciTech Connect

      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. Computer Security Risk Assessment

      Energy Science and Technology Software Center

      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

    17. Method and apparatus for digitally based high speed x-ray spectrometer for direct coupled use with continuous discharge preamplifiers

      DOEpatents

      Warburton, W.K.

      1998-06-30

      A high speed, digitally based, signal processing system is disclosed which accepts directly coupled input data from a detector with a continuous discharge type preamplifier and produces a spectral analysis of the x-rays illuminating the detector. The system`s principal elements are an analog signal conditioning section, a combinatorial logic section which implements digital triangular filtering and pileup inspection, and a microprocessor which accepts values captured by the logic section and uses them to compute x-ray energy values. Operating without pole-zero correction, the system achieves high resolution by capturing, in conjunction with each peak value from the digital filter, an associated value of the unfiltered signal, and using this latter signal to correct the former for errors which arise from its local slope terms. This correction greatly reduces both energy resolution degradation and peak centroid shifting in the output spectrum as a function of input count rate. When the noise of this correction is excessive, a modification allows two filtered averages of the signal to be captured and a corrected peak amplitude computed therefrom. 14 figs.

    18. Method and apparatus for digitally based high speed x-ray spectrometer for direct coupled use with continuous discharge preamplifiers

      DOEpatents

      Warburton, William K.

      1998-01-01

      A high speed, digitally based, signal processing system which accepts directly coupled input data from a detector with a continuous discharge type preamplifier and produces a spectral analysis of the x-rays illuminating the detector. The system's principal elements are an analog signal conditioning section, a combinatorial logic section which implements digital triangular filtering and pileup inspection, and a microprocessor which accepts values captured by the logic section and uses them to compute x-ray energy values. Operating without pole-zero correction, the system achieves high resolution by capturing, in conjunction with each peak value from the digital filter, an associated value of the unfiltered signal, and using this latter signal to correct the former for errors which arise from its local slope terms. This correction greatly reduces both energy resolution degradation and peak centroid shifting in the output spectrum as a function of input count rate. When the noise of this correction is excessive, a modification allows two filtered averages of the signal to be captured and a corrected peak amplitude computed therefrom.

    19. Department of Defense High Performance Computing Modernization...

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

      Computational Chemistry, Biology & Materials Science - 387 Users Computational Electromagnetics & Acoustics - 310 Users Computational Fluid Dynamics - 1,664 Users Environmental ...

    20. Fermilab | Science at Fermilab | Computing | Networking

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

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

    1. Digital Architecture – Results From a Gap Analysis

      SciTech Connect

      Oxstrand, Johanna Helene; Thomas, Kenneth David; Fitzgerald, Kirk

      2015-09-01

      The digital architecture is defined as a collection of IT capabilities needed to support and integrate a wide-spectrum of real-time digital capabilities for nuclear power plant performance improvements. The digital architecture can be thought of as an integration of the separate I&C and information systems already in place in NPPs, brought together for the purpose of creating new levels of automation in NPP work activities. In some cases, it might be an extension of the current communication systems, to provide digital communications where they are currently analog only. This collection of IT capabilities must in turn be based on a set of user requirements that must be supported for the interconnected technologies to operate in an integrated manner. These requirements, simply put, are a statement of what sorts of digital work functions will be exercised in a fully-implemented seamless digital environment and how much they will be used. The goal of the digital architecture research is to develop a methodology for mapping nuclear power plant operational and support activities into the digital architecture, which includes the development of a consensus model for advanced information and control architecture. The consensus model should be developed at a level of detail that is useful to the industry. In other words, not so detailed that it specifies specific protocols and not so vague that it is only provides a high level description of technology. The next step towards the model development is to determine the current state of digital architecture at typical NPPs. To investigate the current state, the researchers conducted a gap analysis to determine to what extent the NPPs can support the future digital technology environment with their existing I&C and IT structure, and where gaps exist with respect to the full deployment of technology over time. The methodology, result, and conclusions from the gap analysis are described in this report.

    2. SCC: The Strategic Computing Complex

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

      SCC: The Strategic Computing Complex SCC: The Strategic Computing Complex The Strategic Computing Complex (SCC) is a secured supercomputing facility that supports the calculation, modeling, simulation, and visualization of complex nuclear weapons data in support of the Stockpile Stewardship Program. The 300,000-square-foot, vault-type building features an unobstructed 43,500-square-foot computer room, which is an open room about three-fourths the size of a football field. The Strategic Computing

    3. Magellan: A Cloud Computing Testbed

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

      Magellan News & Announcements Archive Petascale Initiative Exascale Computing APEX TOKIO: Total Knowledge of I/O 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.

    4. Software and High Performance Computing

      U.S. Department of Energy (DOE) - all 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

    5. Theoretical investigations of defects in a Si-based digital ferromagne...

      Office of Scientific and Technical Information (OSTI)

      digital ferromagnetic heterostructure - a spintronic material Citation Details In-Document Search Title: Theoretical investigations of defects in a Si-based digital ...

    6. TOWARD HIGHLY SECURE AND AUTONOMIC COMPUTING SYSTEMS: A HIERARCHICAL APPROACH

      SciTech Connect

      Lee, Hsien-Hsin S

      2010-05-11

      The overall objective of this research project is to develop novel architectural techniques as well as system software to achieve a highly secure and intrusion-tolerant computing system. Such system will be autonomous, self-adapting, introspective, with self-healing capability under the circumstances of improper operations, abnormal workloads, and malicious attacks. The scope of this research includes: (1) System-wide, unified introspection techniques for autonomic systems, (2) Secure information-flow microarchitecture, (3) Memory-centric security architecture, (4) Authentication control and its implication to security, (5) Digital right management, (5) Microarchitectural denial-of-service attacks on shared resources. During the period of the project, we developed several architectural techniques and system software for achieving a robust, secure, and reliable computing system toward our goal.

    7. Exploratory Experimentation and Computation

      SciTech Connect

      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.

    8. Computer Algebra System

      Energy Science and Technology Software Center

      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

    9. GPU Computational Screening

      U.S. Department of Energy (DOE) - all 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

    10. Computed Tomography Status

      DOE R&D Accomplishments

      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. ALCF COMPUTING RESOURCES MIRA

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

      COMPUTING RESOURCES MIRA Mira, the ALCF's 10-petaflops IBM Blue Gene/Q supercomputer, opens the door for scientists to analyze data more efficiently, design products more quickly, and address some of society's biggest problems in ways that would otherwise be impossible. The system is capable of carrying out 10 quadrillion calculations per second. Mira is also among the most energy-efficient supercomputers, saving considerable energy through innovative chip designs and a unique water-cooling

    12. 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

    13. Development of computer graphics

      SciTech Connect

      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.

    14. Computing for Finance

      SciTech Connect

      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

    15. Computing for Finance

      ScienceCinema

      None

      2016-07-12

      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

    16. Computing for Finance

      ScienceCinema

      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

    17. Computing for Finance

      ScienceCinema

      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

    18. Feed-forward digital phase and amplitude correction system

      DOEpatents

      Yu, D.U.L.; Conway, P.H.

      1994-11-15

      Phase and amplitude modifications in repeatable RF pulses at the output of a high power pulsed microwave amplifier are made utilizing a digital feed-forward correction system. A controlled amount of the output power is coupled to a correction system for processing of phase and amplitude information. The correction system comprises circuitry to compare the detected phase and amplitude with the desired phase and amplitude, respectively, and a digitally programmable phase shifter and attenuator and digital logic circuitry to control the phase shifter and attenuator. The phase and amplitude of subsequent are modified by output signals from the correction system. 11 figs.

    19. Feed-forward digital phase and amplitude correction system

      DOEpatents

      Yu, David U. L.; Conway, Patrick H.

      1994-01-01

      Phase and amplitude modifications in repeatable RF pulses at the output of a high power pulsed microwave amplifier are made utilizing a digital feed-forward correction system. A controlled amount of the output power is coupled to a correction system for processing of phase and amplitude information. The correction system comprises circuitry to compare the detected phase and amplitude with the desired phase and amplitude, respectively, and a digitally programmable phase shifter and attenuator and digital logic circuitry to control the phase shifter and attenuator. The Phase and amplitude of subsequent are modified by output signals from the correction system.

    20. A Modular, Standards-based Digital Object Repository

      Energy Science and Technology Software Center

      2005-08-01

      The aDORe repository architecture, designed and implemented for ingesting, storing, and accessing a vast collection of Digital Objects. aDORe was originally created for use at the Research Library of the Los Alamos National Laboratory. The aDORe architecture is highly modular and standards-based. In the architecture, the MPEG-21 Digital Item Declaration Language is used as the XML-based format to represent Digital Objects that can consist of multiple datastreams as Open Archival Information System Archival Information Packagesmore » (OAIS AIPs).« less

    1. Optical domain analog to digital conversion methods and apparatus

      DOEpatents

      Vawter, Gregory A

      2014-05-13

      Methods and apparatus for optical analog to digital conversion are disclosed. An optical signal is converted by mapping the optical analog signal onto a wavelength modulated optical beam, passing the mapped beam through interferometers to generate analog bit representation signals, and converting the analog bit representation signals into an optical digital signal. A photodiode receives an optical analog signal, a wavelength modulated laser coupled to the photodiode maps the optical analog signal to a wavelength modulated optical beam, interferometers produce an analog bit representation signal from the mapped wavelength modulated optical beam, and sample and threshold circuits corresponding to the interferometers produce a digital bit signal from the analog bit representation signal.

    2. A double-double/double-single computation package

      Energy Science and Technology Software Center

      2004-12-01

      The DDFUNIDSFUN software permits a new or existing Fortran-90 program to utilize double-double precision (approx. 31 digits) or double-single precision (approx. 14 digits) arithmetic. Double-double precision is required by a rapidly expandirtg body of scientific computations in physics and mathematics, for which the conventional 64-bit IEEE computer arithmetic (about 16 decimal digit accuracy) is not sufficient. Double-single precision permits users of systems that do not have hardware 64-bit IEEE arithmetic (such as some game systems)more » to perform arithmetic at a precision nearly as high as that of systems that do. Both packages run significantly faster Than using multiple precision or arbitrary precision software for this purpose. The package includes an extensive set of low-level routines to perform high-precision arithmetic, including routines to calculate various algebraic and transcendental functions, such as square roots, sin, ccc, exp, log and others. In addition, the package includes high-level translation facilities, so that Fortran programs can utilize these facilities by making only a few changes to conventional Fortran programs. In most cases, the only changes that are required are to change the type statements of variables that one wishes to be treated as multiple precision, plus a few other minor changes. The DDFUN package is similar in functionality to the double-double part of the GD package, which was previously written at LBNL. However, the DDFUN package is written exclusively in Fortran-90, thus avoidIng difficulties that some users experience when using GD, which includes both Fortran-90 and C++ code.« less

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

      U.S. Department of Energy (DOE) - all 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

    4. Transient digitizer with displacement current samplers

      DOEpatents

      McEwan, Thomas E.

      1996-01-01

      A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board.

    5. Transient digitizer with displacement current samplers

      DOEpatents

      McEwan, T.E.

      1996-05-21

      A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board. 16 figs.

    6. Computational Electronics and Electromagnetics

      SciTech Connect

      DeFord, J.F.

      1993-03-01

      The Computational Electronics and Electromagnetics thrust area is a focal point for computer modeling activities in electronics and electromagnetics in the Electronics Engineering Department of Lawrence Livermore National Laboratory (LLNL). Traditionally, they have focused their efforts in technical areas of importance to existing and developing LLNL programs, and this continues to form the basis for much of their research. A relatively new and increasingly important emphasis for the thrust area is the formation of partnerships with industry and the application of their simulation technology and expertise to the solution of problems faced by industry. The activities of the thrust area fall into three broad categories: (1) the development of theoretical and computational models of electronic and electromagnetic phenomena, (2) the development of useful and robust software tools based on these models, and (3) the application of these tools to programmatic and industrial problems. In FY-92, they worked on projects in all of the areas outlined above. The object of their work on numerical electromagnetic algorithms continues to be the improvement of time-domain algorithms for electromagnetic simulation on unstructured conforming grids. The thrust area is also investigating various technologies for conforming-grid mesh generation to simplify the application of their advanced field solvers to design problems involving complicated geometries. They are developing a major code suite based on the three-dimensional (3-D), conforming-grid, time-domain code DSI3D. They continue to maintain and distribute the 3-D, finite-difference time-domain (FDTD) code TSAR, which is installed at several dozen university, government, and industry sites.

    7. Sandia Lightning Early Warning Network: Digital-based upgrade

      SciTech Connect

      Boyd, G.M.

      1994-05-01

      This report describes the layout and operation of the recently upgraded Sandia Lightning Early Warning Network, which was upgraded from an analog-based to a digital-based telemetry system.

    8. Bringing a Digital Mindset to Manufacturing | GE Global Research

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

      Discussion: SMAC and Other Roads to the Internet of Everything" "Expert Panel Discussion: ... Like MMO, we can build things digitally before they're even built with raw materials in a ...

    9. OSTIblog Articles in the digitization Topic | OSTI, US Dept of...

      Office of Scientific and Technical Information (OSTI)

      ... OSTI's most recent contributions to... Related Topics: digitization, DOE Green Energy, preservation, Science.gov, ScienceCinema, ScienceEducation.gov Read more... You Can Be a Part ...

    10. LM Completes X-Ray Film Digitization Project

      Energy.gov [DOE]

      The U.S. Department of Energy (DOE) Office of Legacy Management (LM) has successfully completed a project to digitize nearly 400,000 medical x‑rays of former DOE contractor employees.

    11. Live Broadcast on Transforming Digital Technologies Across Government

      Energy.gov [DOE]

      On Thursday, March 24 at 1:00pm ET, join the Office of the Chief Information Office for a discussion on transforming digital technologies across the federal government.

    12. EERE Website and Digital Media Standards and Guidelines

      Energy.gov [DOE]

      Find guidance on the Office of Energy Efficiency and Renewable Energy’s (EERE’s) requirements, standards, and best practices for websites and other digital media such as applications, videos, and social media.

    13. Computer generated holographic microtags

      DOEpatents

      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.

    14. The Exascale Computing Project

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

      Project announces $48 million to establish four Exascale Co-Design Centers November 11, 2016 OAK RIDGE, Tenn., Nov. 11, 2016 - The Department of Energy's Exascale Computing Project (ECP) today announced that it has selected four co-design centers as part of a 4 year, $48 million funding award. The first year is funded at $12 million, and is to be allocated evenly among the four award recipients. The ECP is responsible for the planning, execution, and delivery of technologies necessary for a

    15. Computing for Finance

      ScienceCinema

      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

    16. Multiprocessor computing for images

      SciTech Connect

      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.

    17. Computer generated holographic microtags

      DOEpatents

      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.

    18. computational-hydraulics

      U.S. Department of Energy (DOE) - all 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

    19. developing-compute-efficient

      U.S. Department of Energy (DOE) - all 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

    20. Announcement of Computer Software

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

      F 241.4 (10-01) (Replaces ESTSC F1 and ESTSC F2) 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 page of Instructions) Record Status (Select One): New Package Software Revision H. Description/Abstract PART I: STI SOFTWARE DESCRIPTION A. Software Title SHORT NAME OR ACRONYM KEYWORDS IN CONTEXT (KWIC) TITLE B. Developer(s) E-MAIL ADDRESS(ES) C. Site Product Number 1. DOE

    1. Introduction to High Performance Computing

      U.S. Department of Energy (DOE) - all 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...

    2. Computer Wallpaper | The Ames Laboratory

      U.S. Department of Energy (DOE) - all 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....

    3. High speed, multi-channel, user programmable digital data acquisition system.

      SciTech Connect

      Sabourov, Konstantin; Hennig, Wolfgang; Walby, Mark

      2013-11-18

      As applications for radiation detection become more demanding, and in turn improvements are made in the technology of radiation detection, there is a need for high speed digital detector readout electronics matching these improvements. Specifically, full control over the on-line processing resources of modern digital electronics is desirable so that researchers can develop custom algorithms for special applications.In the proposed effort, the 500 MHz digital readout electronics previously developed by our company will be redesigned to allow user access to the on-line processing resources. In Phase I, the division of online processing into vendor and user firmware sections has been studied on existing hardware. In Phase II, the hardware will be upgraded to better facilitate the division, and the firmware will be restructured into a robust vendor logic block (providing standard functions such as host I/O, on-board memory I/O, energy computation, MCA spectra, timestamps, waveform capture, run statistics, and triggering and timing) and a user logic block for custom algorithms (with templates and examples for frequently used functions). Investigating several options to divide online processing, it was determined that the most promising approach is to “partition” a single FPGA integrated circuit into a vendor and user section, which is supported in newer devices. The analog front end of the existing electronics proved suitable for most applications, in particular high rate measurements with germanium detectors. The design architecture for new electronics was developed, combining one of the new FPGA device with the analog front end.

    4. Digital-data receiver synchronization method and apparatus

      DOEpatents

      Smith, Stephen F. [Loudon, TN; Turner, Gary W. [Clinton, TN

      2009-09-08

      Digital data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

    5. Digital-data receiver synchronization method and apparatus

      DOEpatents

      Smith, Stephen F.; Turner, Gary W.

      2005-12-06

      Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock may be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

    6. GE's Digital Marketplace to Revolutionize Manufacturing | GE Global

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

      Research GE's Digital Marketplace to Revolutionize Manufacturing Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) GE's Digital Marketplace to Revolutionize Manufacturing GE will lead an effort to create an online community for manufacturing collaboration and data analysis The open source project will build the

    7. GE Showcases Digital Industrial Technologies and Impels Open Innovation at

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

      2016 TECHfest | GE Global Research Showcases Digital Industrial Technologies and Impels Open Innovation at 2016 TECHfest Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) GE Showcases Digital Industrial Technologies and Impels Open Innovation at 2016 TECHfest GE China Technology Center teams up with Zhangjiang

    8. EERE Digital Data Management Glossary | Department of Energy

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

      Glossary EERE Digital Data Management Glossary Digital data management glossary terms are defined below. Data preservation: Data preservation means providing for the usability of data beyond the lifetime of the research activity that generated them. Data sharing: Data sharing means making data available to people other than those who have generated them. Examples of data sharing range from bilateral communications with colleagues to providing free, unrestricted access to the public through, for

    9. History | Argonne Leadership Computing Facility

      U.S. Department of Energy (DOE) - all 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

    10. Present and Future Computing Requirements

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

      Computational Cosmology DES LSST Presenter: Salman Habib Argonne National Laboratory Jim Ahrens (LANL) Scott Dodelson (FNAL) Katrin Heitmann (ANL) Peter Nugent (LBNL) Anze Slosar (BNL) Risa Wechsler (SLAC) 1 Cosmic Frontier Computing Collaboration Computational 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 Requirements for High Energy Physics Research A DOE Technical

    11. Computational and experimental study of laminar flames

      SciTech Connect

      Smooke, Mitchell

      2015-05-29

      During the past three years, our research has centered on an investigation of the effects of complex chemistry and detailed transport on the structure and extinction of hydrocarbon flames in coflowing axisymmetric configurations. We have pursued both computational and experimental aspects of the research in parallel on both steady-state and time-dependent systems. The computational work has focused on the application of accurate and efficient numerical methods for the solution of the steady-state and time-dependent boundary value problems describing the various reacting systems. Detailed experimental measurements were performed on axisymmetric coflow flames using two-dimensional imaging techniques. Previously, spontaneous Raman scattering, chemiluminescence, and laser-induced fluorescence were used to measure the temperature, major and minor species profiles. Particle image velocimetry (PIV) has been used to investigate velocity distributions and for calibration of time-varying flames. Laser-induced incandescence (LII) with an extinction calibration was used to determine soot volume fractions, while soot surface temperatures were measured with three-color optical pyrometry using a color digital camera. A blackbody calibration of the camera allows for determination of soot volume fraction as well, which can be compared with the LII measurements. More recently, we have concentrated on a detailed characterization of soot using a variety of techniques including time-resolved LII (TiRe-LII) for soot primary particles sizes, multi-angle light scattering (MALS) for soot radius of gyration, and spectrally-resolved line of sight attenuation (spec-LOSA). Combining the information from all of these soot measurements can be used to determine the soot optical properties, which are observed to vary significantly depending on spatial location and fuel dilution. Our goal has been to obtain a more fundamental understanding of the important fluid dynamic and chemical interactions in

    12. Computing architecture for autonomous microgrids

      DOEpatents

      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 .

    13. Computing architecture for autonomous microgrids

      DOEpatents

      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.

    14. A Automated Tool for Supporting FMEAs of Digital Systems

      SciTech Connect

      Yue,M.; Chu, T.-L.; Martinez-Guridi, G.; Lehner, J.

      2008-09-07

      Although designs of digital systems can be very different from each other, they typically use many of the same types of generic digital components. Determining the impacts of the failure modes of these generic components on a digital system can be used to support development of a reliability model of the system. A novel approach was proposed for such a purpose by decomposing the system into a level of the generic digital components and propagating failure modes to the system level, which generally is time-consuming and difficult to implement. To overcome the associated issues of implementing the proposed FMEA approach, an automated tool for a digital feedwater control system (DFWCS) has been developed in this study. The automated FMEA tool is in nature a simulation platform developed by using or recreating the original source code of the different module software interfaced by input and output variables that represent physical signals exchanged between modules, the system, and the controlled process. For any given failure mode, its impacts on associated signals are determined first and the variables that correspond to these signals are modified accordingly by the simulation. Criteria are also developed, as part of the simulation platform, to determine whether the system has lost its automatic control function, which is defined as a system failure in this study. The conceptual development of the automated FMEA support tool can be generalized and applied to support FMEAs for reliability assessment of complex digital systems.

    15. MELCOR computer code manuals

      SciTech Connect

      Summers, R.M.; Cole, R.K. Jr.; Smith, R.C.; Stuart, D.S.; Thompson, S.L.; Hodge, S.A.; Hyman, C.R.; Sanders, R.L.

      1995-03-01

      MELCOR is a fully integrated, engineering-level computer code that models the progression of severe accidents in light water reactor nuclear power plants. MELCOR is being developed at Sandia National Laboratories for the U.S. Nuclear Regulatory Commission as a second-generation plant risk assessment tool and the successor to the Source Term Code Package. A broad spectrum of severe accident phenomena in both boiling and pressurized water reactors is treated in MELCOR in a unified framework. These include: thermal-hydraulic response in the reactor coolant system, reactor cavity, containment, and confinement buildings; core heatup, degradation, and relocation; core-concrete attack; hydrogen production, transport, and combustion; fission product release and transport; and the impact of engineered safety features on thermal-hydraulic and radionuclide behavior. Current uses of MELCOR include estimation of severe accident source terms and their sensitivities and uncertainties in a variety of applications. This publication of the MELCOR computer code manuals corresponds to MELCOR 1.8.3, released to users in August, 1994. Volume 1 contains a primer that describes MELCOR`s phenomenological scope, organization (by package), and documentation. The remainder of Volume 1 contains the MELCOR Users Guides, which provide the input instructions and guidelines for each package. Volume 2 contains the MELCOR Reference Manuals, which describe the phenomenological models that have been implemented in each package.

    16. A digital video camera for application of particle image velocimetry in high-speed flows

      SciTech Connect

      Willert, C.; Stasicki, B.; Raffel, M.; Kompenhans, J.

      1995-12-31

      A high-speed digital camera based on video technology for application of particle image velocimetry in wind tunnels is described. The camera contains two independently triggerable interline CCD sensors which are mounted on two faces of a cube beam splitter permitting the use of a single lens. Each of the sensors has a minimal exposure time of 0.8 {micro}s with a trigger response time of less than 1 {micro}s. The asynchronous reset capability permits the camera to trigger directly off a pulsed laser with a repetition rate differing from the standard 25 Hz CCIR video frame rate. Captured images are digitized within and stored in RAM the camera which can be read through the parallel port of a computer. The camera is software configurable with the settings being non-volatile. Technical aspects such as sensor alignment and calibration through software are described. Close-up PIV measurements on a free jet illustrate that, in the future, the camera can be successfully utilized at imaging high-speed flows over a small field of view covering several cm{sup 2}, such as the flow between turbine blades. Further, the electronic shutter permits its use in luminous environments such as illuminated laboratories, wind tunnels or flames.

    17. A Computing Environment to Support Repeatable Scientific Big Data Experimentation of World-Wide Scientific Literature

      SciTech Connect

      Schlicher, Bob G; Kulesz, James J; Abercrombie, Robert K; Kruse, Kara L

      2015-01-01

      A principal tenant of the scientific method is that experiments must be repeatable and relies on ceteris paribus (i.e., all other things being equal). As a scientific community, involved in data sciences, we must investigate ways to establish an environment where experiments can be repeated. We can no longer allude to where the data comes from, we must add rigor to the data collection and management process from which our analysis is conducted. This paper describes a computing environment to support repeatable scientific big data experimentation of world-wide scientific literature, and recommends a system that is housed at the Oak Ridge National Laboratory in order to provide value to investigators from government agencies, academic institutions, and industry entities. The described computing environment also adheres to the recently instituted digital data management plan mandated by multiple US government agencies, which involves all stages of the digital data life cycle including capture, analysis, sharing, and preservation. It particularly focuses on the sharing and preservation of digital research data. The details of this computing environment are explained within the context of cloud services by the three layer classification of Software as a Service , Platform as a Service , and Infrastructure as a Service .

    18. Software Aspects of IEEE Floating-Point Computations for Numerical Applications in High Energy Physics

      ScienceCinema

      None

      2011-10-06

      Floating-point computations are at the heart of much of the computing done in high energy physics. The correctness, speed and accuracy of these computations are of paramount importance. The lack of any of these characteristics can mean the difference between new, exciting physics and an embarrassing correction. This talk will examine practical aspects of IEEE 754-2008 floating-point arithmetic as encountered in HEP applications. After describing the basic features of IEEE floating-point arithmetic, the presentation will cover: common hardware implementations (SSE, x87) techniques for improving the accuracy of summation, multiplication and data interchange compiler options for gcc and icc affecting floating-point operations hazards to be avoided About the speaker Jeffrey M Arnold is a Senior Software Engineer in the Intel Compiler and Languages group at Intel Corporation. He has been part of the Digital->Compaq->Intel compiler organization for nearly 20 years; part of that time, he worked on both low- and high-level math libraries. Prior to that, he was in the VMS Engineering organization at Digital Equipment Corporation. In the late 1980s, Jeff spent 2½ years at CERN as part of the CERN/Digital Joint Project. In 2008, he returned to CERN to spent 10 weeks working with CERN/openlab. Since that time, he has returned to CERN multiple times to teach at openlab workshops and consult with various LHC experiments. Jeff received his Ph.D. in physics from Case Western Reserve University.

    19. Software Aspects of IEEE Floating-Point Computations for Numerical Applications in High Energy Physics

      SciTech Connect

      2010-05-11

      Floating-point computations are at the heart of much of the computing done in high energy physics. The correctness, speed and accuracy of these computations are of paramount importance. The lack of any of these characteristics can mean the difference between new, exciting physics and an embarrassing correction. This talk will examine practical aspects of IEEE 754-2008 floating-point arithmetic as encountered in HEP applications. After describing the basic features of IEEE floating-point arithmetic, the presentation will cover: common hardware implementations (SSE, x87) techniques for improving the accuracy of summation, multiplication and data interchange compiler options for gcc and icc affecting floating-point operations hazards to be avoided About the speaker Jeffrey M Arnold is a Senior Software Engineer in the Intel Compiler and Languages group at Intel Corporation. He has been part of the Digital->Compaq->Intel compiler organization for nearly 20 years; part of that time, he worked on both low- and high-level math libraries. Prior to that, he was in the VMS Engineering organization at Digital Equipment Corporation. In the late 1980s, Jeff spent 2 years at CERN as part of the CERN/Digital Joint Project. In 2008, he returned to CERN to spent 10 weeks working with CERN/openlab. Since that time, he has returned to CERN multiple times to teach at openlab workshops and consult with various LHC experiments. Jeff received his Ph.D. in physics from Case Western Reserve University.

    20. Computer-Aided Construction of Chemical Kinetic Models

      SciTech Connect

      Green, William H.

      2014-12-31

      The combustion chemistry of even simple fuels can be extremely complex, involving hundreds or thousands of kinetically significant species. The most reasonable way to deal with this complexity is to use a computer not only to numerically solve the kinetic model, but also to construct the kinetic model in the first place. Because these large models contain so many numerical parameters (e.g. rate coefficients, thermochemistry) one never has sufficient data to uniquely determine them all experimentally. Instead one must work in “predictive” mode, using theoretical rather than experimental values for many of the numbers in the model, and as appropriate refining the most sensitive numbers through experiments. Predictive chemical kinetics is exactly what is needed for computer-aided design of combustion systems based on proposed alternative fuels, particularly for early assessment of the value and viability of proposed new fuels before those fuels are commercially available. This project was aimed at making accurate predictive chemical kinetics practical; this is a challenging goal which requires a range of science advances. The project spanned a wide range from quantum chemical calculations on individual molecules and elementary-step reactions, through the development of improved rate/thermo calculation procedures, the creation of algorithms and software for constructing and solving kinetic simulations, the invention of methods for model-reduction while maintaining error control, and finally comparisons with experiment. Many of the parameters in the models were derived from quantum chemistry calculations, and the models were compared with experimental data measured in our lab or in collaboration with others.

    1. Review of P-scan computer-based ultrasonic inservice inspection system. Supplement 1

      SciTech Connect

      Harris, R.V. Jr.; Angel, L.J.

      1995-12-01

      This Supplement reviews the P-scan system, a computer-based ultrasonic system used for inservice inspection of piping and other components in nuclear power plants. The Supplement was prepared using the methodology described in detail in Appendix A of NUREG/CR-5985, and is based on one month of using the system in a laboratory. This Supplement describes and characterizes: computer system, ultrasonic components, and mechanical components; scanning, detection, digitizing, imaging, data interpretation, operator interaction, data handling, and record-keeping. It includes a general description, a review checklist, and detailed results of all tests performed.

    2. Noise tolerant spatiotemporal chaos computing

      SciTech Connect

      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. Digital Elevation Model, 0.25 m, Barrow Environmental Observatory, Alaska, 2013

      DOE Data Explorer

      Cathy Wilson; Garrett Altmann

      2015-11-20

      This 0.25m horizontal resolution digital elevation model, DEM, was developed from Airborne Laser Altimetry flown by Aerometric Inc, now known as Quantum Spatial, Inc. on 12 July, 2013. One Mission was flown and the data jointly processed with LANL personnel to produce a 0.25m DEM covering a region approximately 2.8km wide and 12.4km long extending from the coast above North Salt Lagoon to south of Gas Well Road. This DEM encompasses a diverse range of hydrologic, geomorphic, geophysical and biological features typical of the Barrow Peninsula. Vertical accuracy at the 95% confidence interval was computed as 0.143m. The coordinate system, datum, and geoid for this DEM are UTM Zone 4N, NAD83 (2011), NAVD88 (GEOID09).

    4. Automated feature detection and identification in digital point-ordered signals

      DOEpatents

      Oppenlander, Jane E.; Loomis, Kent C.; Brudnoy, David M.; Levy, Arthur J.

      1998-01-01

      A computer-based automated method to detect and identify features in digital point-ordered signals. The method is used for processing of non-destructive test signals, such as eddy current signals obtained from calibration standards. The signals are first automatically processed to remove noise and to determine a baseline. Next, features are detected in the signals using mathematical morphology filters. Finally, verification of the features is made using an expert system of pattern recognition methods and geometric criteria. The method has the advantage that standard features can be, located without prior knowledge of the number or sequence of the features. Further advantages are that standard features can be differentiated from irrelevant signal features such as noise, and detected features are automatically verified by parameters extracted from the signals. The method proceeds fully automatically without initial operator set-up and without subjective operator feature judgement.

    5. Delivering science on day one | Argonne Leadership Computing...

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

      Read full story on CiSE >> Digital reconstruction of pyramidal cells from the Blue Brain Project Digital reconstruction of pyramidal cells from the Blue Brain Project, Ecole ...

    6. AMRITA -- A computational facility

      SciTech Connect

      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.

    7. Sandia National Laboratories: Advanced Simulation and Computing:

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

      Computational Systems & Software Environment Computational Systems & Software Environment Advanced Simulation and Computing Computational Systems & Software Environment Integrated Codes Physics & Engineering Models Verification & Validation Facilities Operation & User Support Research & Collaboration Contact ASC Advanced Simulation and Computing Computational Systems & Software Environment Crack Modeling The Computational Systems & Software Environment

    8. The Exascale Computing Project | Argonne Leadership Computing Facility

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

      The Exascale Computing Project Event Sponsor: Argonne Leadership Computing Facility Tech Talk Start Date: Nov 8 2016 - 12:00pm Building/Room: Building 240/Room 1406-1407 Location: Argonne National Laboratory Speaker(s): Paul Messina Speaker(s) Title: Argonne National Laboratory, CLS The U.S. Department of Energy has established the Exascale Computing Project (ECP) -- a joint project of the DOE Office of Science (DOE-SC) and the DOE National Nuclear Security Administration (NNSA) -- that will

    9. This invention relates to methods of generating NP gallium nitride (GaN) across large areas (>1 cm.sup.2) with controlled pore diameters, pore density, and porosity. Also disclosed are methods of generating novel optoelectronic devices based on porous GaN. Additionally a layer transfer scheme to separate and create free-standing crystalline GaN thin layers is disclosed that enables a new device manufacturing paradigm involving substrate recycling. Other disclosed embodiments of this invention relate to fabrication of GaN based nanocrystals and the use of NP GaN electrodes for electrolysis, water splitting, or photosynthetic process applications.

      DOEpatents

      Zhang, Yu; Sun, Qian; Han, Jung

      2015-12-08

      This invention relates to methods of generating NP gallium nitride (GaN) across large areas (>1 cm.sup.2) with controlled pore diameters, pore density, and porosity. Also disclosed are methods of generating novel optoelectronic devices based on porous GaN. Additionally a layer transfer scheme to separate and create free-standing crystalline GaN thin layers is disclosed that enables a new device manufacturing paradigm involving substrate recycling. Other disclosed embodiments of this invention relate to fabrication of GaN based nanocrystals and the use of NP GaN electrodes for electrolysis, water splitting, or photosynthetic process applications.

    10. CLAMR (Compute Language Adaptive Mesh Refinement)

      U.S. Department of Energy (DOE) - all 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...

    11. Other World Computing | Open Energy Information

      OpenEI (Open Energy Information) [EERE & EIA]

      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...

    12. Paul C. Messina | Argonne Leadership Computing Facility

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

      He led the Computational and Computer Science component of Caltech's research project funded by the Academic Strategic Alliances Program of the Accelerated Strategic Computing ...

    13. Computer_Vision

      Energy Science and Technology Software Center

      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

    14. Digital regulation of a phase controlled power converter

      SciTech Connect

      Schultheiss, C.; Haque, T.

      1995-12-01

      The Relativistic Heavy Ion Collider, now in construction at Brookhaven National Laboratory, will use phase controlled power converters for the main dipole and quadrupole magnet strings. The rectifiers in these power supplies will be controlled by a digital regulator based on the TI 320C30 Digital Signal Processor (DSP). The DSP implements the current loop, the voltage loop, and a system to actively reduce the sub-harmonic ripple components. Digital firing circuits consisting of a phase locked lop and counters are used to fire the SCRs. Corrections for the sub-harmonic reduction are calculated by the DSP and stored in registers in the firing circuit. These corrections are added in hardware, to the over-all firing count provided by the DSP. the resultant count is compared to a reference counter to fire the SCRs. This combination of a digital control system and the digital firing circuits allows the correction of the sub-harmonics in a real-time sense. A prototype of the regulator has been constructed, and the preliminary testing indicates a sub-harmonic reduction of 60 dB.

    15. Computational Fluid Dynamics Library

      Energy Science and Technology Software Center

      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

    16. Python and computer vision

      SciTech Connect

      Doak, J. E.; Prasad, Lakshman

      2002-01-01

      This paper discusses the use of Python in a computer vision (CV) project. We begin by providing background information on the specific approach to CV employed by the project. This includes a brief discussion of Constrained Delaunay Triangulation (CDT), the Chordal Axis Transform (CAT), shape feature extraction and syntactic characterization, and normalization of strings representing objects. (The terms 'object' and 'blob' are used interchangeably, both referring to an entity extracted from an image.) The rest of the paper focuses on the use of Python in three critical areas: (1) interactions with a MySQL database, (2) rapid prototyping of algorithms, and (3) gluing together all components of the project including existing C and C++ modules. For (l), we provide a schema definition and discuss how the various tables interact to represent objects in the database as tree structures. (2) focuses on an algorithm to create a hierarchical representation of an object, given its string representation, and an algorithm to match unknown objects against objects in a database. And finally, (3) discusses the use of Boost Python to interact with the pre-existing C and C++ code that creates the CDTs and CATS, performs shape feature extraction and syntactic characterization, and normalizes object strings. The paper concludes with a vision of the future use of Python for the CV project.

    17. Computational Cosmology | Argonne National Laboratory

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

      Computational Cosmology Computational Cosmology To study the mysterious dark sector we use powerful simulations on state-of-the-art high-performance computers, run at Argonne and elsewhere. By developing specialized codes for these supercomputers, and by comparing their results to observations from deep surveys of the sky, we aim to answer some of the most fundamental questions in physics: What is dark matter made of? What is the nature of dark energy? Does general relativity need to be

    18. computational-fluid-dynamics-training

      U.S. Department of Energy (DOE) - all 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

    19. Funding boosts exascale computing research

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

      Funding boosts exascale computing research Funding boosts exascale computing research Six Los Alamos National Laboratory partnership projects were tagged for full funding and one for seed money. September 7, 2016 High-performance computing produces scientific tools such as this visualization from Los Alamos National Laboratory depicting global water-surface temperatures, with the surface texture driven by vorticity. Regions of warmer water (red) adjacent to the Gulf Stream off the eastern coast

    20. Bioinformatics Computing Consultant Position Available

      U.S. Department of Energy (DOE) - all 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