National Library of Energy BETA

Sample records for authority large system

  1. Behavior of Fast Consistency Algorithms in Large Decentralized Systems Authors and affiliations

    E-Print Network [OSTI]

    Navarro Moldes, Leandro

    -Elias is student: grant by the Mexican Ministry of Education (Secretaría de Educación Pública) under contract Systems Jesús Acosta-Elias, José Mitre, Leandro Navarro-Moldes Polytechnic University of Catalonia, Spain

  2. Work Authorization System

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

    2005-04-21

    To establish a work authorization and control process for work performed by designated site and facility management contractors, and other contractors as determined by the procurement executive, consistent with the budget execution and program evaluation requirements of the Department of Energy's (DOE's) Planning, Programming, Budgeting, and Evaluation process. Cancels DOE O 412.1.

  3. Work Authorization System

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

    2005-04-21

    To establish a work authorization and control process for work performed by designated site and facility management contractors, and other contractors as determined by the procurement executive, consistent with the budget execution and program evaluation requirements of the Department of Energy's Planning, Programming, Budgeting, and Evaluation process. Admin Chg 1, dated 5-21-2014, cancels DOE O 412.1A.

  4. Work Authorization System

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

    1999-04-20

    It establishes a work authorization and control process for work performed by designated management and operating (M&O), management and integrating (M&I), environmental restoration management contracts (ERMC) and other contracts determined by the Procurement Executive (hereafter referred to as M&O contractors). Cancels DOE O 5700.7C. Canceled by DOE O 412.1A.

  5. Authoring Large and Complex Hypertext with Reusable Components 

    E-Print Network [OSTI]

    Park, Yung Ah

    2011-10-21

    from Petri net theory to select, categorize, and modify existing net fragments as building blocks for composing larger networks. Authors may switch modes between visual and textual authoring at will, thus combining the strengths of expressing large nets...

  6. Author's personal copy Large deformation and electrochemistry of polyelectrolyte gels

    E-Print Network [OSTI]

    Hong, Wei

    Author's personal copy Large deformation and electrochemistry of polyelectrolyte gels Wei Hong and electrochemistry. A specific material model is described, including the effects of stretching the network, mixing

  7. Large Torsional Oscillations in Suspension Bridges Revisited: Fixing an Old Approximation Author(s): P. J. McKenna

    E-Print Network [OSTI]

    McKenna, Joseph

    Large Torsional Oscillations in Suspension Bridges Revisited: Fixing an Old Approximation Author to The American Mathematical Monthly. http://www.jstor.org #12;LargeTorsionalOscillations in SuspensionBridges,FredericD. Schwartzwrites "The Tacoma NarrowsBridgecollapse is technology'sversionoftheJFK assassi- nation. There

  8. Large-Scale Information Systems

    SciTech Connect (OSTI)

    D. M. Nicol; H. R. Ammerlahn; M. E. Goldsby; M. M. Johnson; D. E. Rhodes; A. S. Yoshimura

    2000-12-01

    Large enterprises are ever more dependent on their Large-Scale Information Systems (LSLS), computer systems that are distinguished architecturally by distributed components--data sources, networks, computing engines, simulations, human-in-the-loop control and remote access stations. These systems provide such capabilities as workflow, data fusion and distributed database access. The Nuclear Weapons Complex (NWC) contains many examples of LSIS components, a fact that motivates this research. However, most LSIS in use grew up from collections of separate subsystems that were not designed to be components of an integrated system. For this reason, they are often difficult to analyze and control. The problem is made more difficult by the size of a typical system, its diversity of information sources, and the institutional complexities associated with its geographic distribution across the enterprise. Moreover, there is no integrated approach for analyzing or managing such systems. Indeed, integrated development of LSIS is an active area of academic research. This work developed such an approach by simulating the various components of the LSIS and allowing the simulated components to interact with real LSIS subsystems. This research demonstrated two benefits. First, applying it to a particular LSIS provided a thorough understanding of the interfaces between the system's components. Second, it demonstrated how more rapid and detailed answers could be obtained to questions significant to the enterprise by interacting with the relevant LSIS subsystems through simulated components designed with those questions in mind. In a final, added phase of the project, investigations were made on extending this research to wireless communication networks in support of telemetry applications.

  9. MASS STORAGE SYSTEMS AND LARGE RESEARCH LIBRARIES

    E-Print Network [OSTI]

    Baker, James A.

    2013-01-01

    Symposium on Mass Storage Systems, Denver, CO, April15-17, 1980 MASS STORAGE SYSTEMS AND LARGE RESEARCHSymposium on Mass Storage Systems, Denver, Colorado, April

  10. Large Scale Energy Storage: From Nanomaterials to Large Systems

    E-Print Network [OSTI]

    Fisher, Frank

    Large Scale Energy Storage: From Nanomaterials to Large Systems Wednesday October 26, 2011, Babbio energy storage devices. Specifically, this talk discusses 1) the challenges for grid scale of emergent technologies with ultralow costs on new energy storage materials and mechanisms. Dr. Jun Liu

  11. Motor Fleet Request/Authorization Page 1 UNCW Travel System

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Motor Fleet Request/Authorization Page 1 UNCW Travel System Motor Fleet Request/Travel Authorization ENTER THE MOTOR FLEET REQUEST IN THE TRANSPORTATION SECTION OF THE TRAVEL AUTHORIZATION. PRESS CLICK TO ADD AND SELECT MOTOR FLEET FROM THE DROP-DOWN BOX. #12;Motor Fleet Request/Authorization Page 2

  12. Roles and Delegation of Authority (R/DA) System

    SciTech Connect (OSTI)

    ABBOTT,JOHN P.; HUTCHINS,JAMES C.; SCHOCH,DAVID G.

    1999-11-01

    The processes of defining managerial roles and providing for delegation of authority are essential to any enterprise. At most large organizations, these processes are defined in policy manuals and through sets of standard operating procedures for many, if not all, business and administrative functions. Many of these staff-initiated, administrative functions require the routing of documents for approval to one or more levels of management. These employee-oriented, back office types of workflows tend to require more flexibility in determining to whom these documents should go to, while, at the same time, providing the responsible parties with the flexibility to delegate their approval authority or allow others to review their work. Although this practice is commonplace in manual, paper-based processes that exist in many organizations, it is difficult to provide the same flexibility in the more structured, electronic-based, workflow systems. The purpose of this report is to present a framework or architecture for creating a R/DA system and provide some insights associated with its design and utilization. To improve understanding and clarify subsequent discussion, the goals and requirements for the major R/DA system components, namely, the database and interface modules, are initially presented along with the identification of important concepts and the definition of critical terms. Next high-level functions relating the types of inputs to the outputs of the R/DA interface module are introduced and discussed. Then the relationships between the major R/DA modules and the primary components associated with its creation and maintenance are presented and analyzed. Finally, some conclusions are drawn relative to the advantages associated with developing a R/DA system for use in implementing an enterprise-wide, work-facilitating information system.

  13. Modeling needs for very large systems.

    SciTech Connect (OSTI)

    Stein, Joshua S.

    2010-10-01

    Most system performance models assume a point measurement for irradiance and that, except for the impact of shading from nearby obstacles, incident irradiance is uniform across the array. Module temperature is also assumed to be uniform across the array. For small arrays and hourly-averaged simulations, this may be a reasonable assumption. Stein is conducting research to characterize variability in large systems and to develop models that can better accommodate large system factors. In large, multi-MW arrays, passing clouds may block sunlight from a portion of the array but never affect another portion. Figure 22 shows that two irradiance measurements at opposite ends of a multi-MW PV plant appear to have similar irradiance (left), but in fact the irradiance is not always the same (right). Module temperature may also vary across the array, with modules on the edges being cooler because they have greater wind exposure. Large arrays will also have long wire runs and will be subject to associated losses. Soiling patterns may also vary, with modules closer to the source of soiling, such as an agricultural field, receiving more dust load. One of the primary concerns associated with this effort is how to work with integrators to gain access to better and more comprehensive data for model development and validation.

  14. Intern experience at Honeywell, Inc., Large Information Systems Division: an internship report 

    E-Print Network [OSTI]

    Ismail, Abdel-Wahab Tarek, 1956-

    2013-03-13

    This report describes the author's internship assignment at Honeywell Inc. - Large Information Systems Division from January, 1982 through August, 1982. The purpose of the assignment was to fulfill the internship requirements...

  15. Large magnetocapacitance in electronic ferroelectric manganite systems

    SciTech Connect (OSTI)

    Chowdhury, Ujjal; Goswami, Sudipta; Bhattacharya, Dipten; Midya, Arindam; Mandal, P.; Das, Pintu; Mukovskii, Ya. M.

    2013-11-21

    We have observed a sizable positive magnetocapacitance (?5%–90%) in perovskite Pr{sub 0.55}Ca{sub 0.45}MnO{sub 3} and bilayer Pr(Sr{sub 0.1}Ca{sub 0.9}){sub 2}Mn{sub 2}O{sub 7} system under 5?T magnetic field across 20–100?K below the magnetic transition point T{sub N}. The magnetodielectric effect, on the other hand, exhibits a crossover: (a) from positive to negative for the perovskite system and (b) from negative to positive for the bilayer system over the same temperature range. The bilayer Pr(Sr{sub 0.1}Ca{sub 0.9}){sub 2}Mn{sub 2}O{sub 7} system exhibits a sizable anisotropy as well. We have also noticed the influence of magnetic field on the dielectric relaxation characteristics of these systems. These systems belong to a class of improper ferroelectrics and are expected to exhibit charge/orbital order driven ferroelectric polarization below the transition point T{sub CO}. Large magnetocapacitance in these systems shows a typical multiferroic behavior even though the ferroelectric polarization is small in comparison to that of other ferroelectrics.

  16. Multilevel comparison of large urban systems

    E-Print Network [OSTI]

    Pumain, Denise; Cottineau, Clémentine; Vacchiani-Marcuzzo, Céline; Ignazzi, Antonio; Bretagnolle, Anne; Delisle, François; Cura, Robin; Lizzi, Liliane; Baffi, Solène

    2015-01-01

    For the first time the systems of cities in seven countries or regions among the largest in the world (China, India, Brazil, Europe, the Former Soviet Union (FSU), the United States and South Africa) are made comparable through the building of spatio-temporal standardised statistical databases. We first explain the concept of a generic evolutionary urban unit ("city") and its necessary adaptations to the information provided by each national statistical system. Second, the hierarchical structure and the urban growth process are compared at macro-scale for the seven countries with reference to Zipf's and Gibrat's model: in agreement with an evolutionary theory of urban systems, large similarities shape the hierarchical structure and growth processes in BRICS countries as well as in Europe and United States, despite their positions at different stages in the urban transition that explain some structural peculiarities. Third, the individual trajectories of some 10,000 cities are mapped at micro-scale following a...

  17. Exploring large coherent spin systems with solid state NMR

    E-Print Network [OSTI]

    Cho, HyungJoon, Ph. D. Massachusetts Institute of Technology

    2005-01-01

    Solid state Nuclear Magnetic Resonance (NMR) allows us to explore a large coherent spin system and provides an ideal test-bed for studying strongly interacting multiple-spin system in a large Hilbert space. In this thesis, ...

  18. The Promise Of Data Grouping In Large Scale Storage Systems

    E-Print Network [OSTI]

    Wildani, Avani

    2013-01-01

    Martin. Why traditional storage systems donâ??t help us saveB. Dufrasne et al. IBM XIV Storage System Gen3 Architecture,in large scale storage systems. In Proceedings of the 11th

  19. Policy Flash 2014-30 DOE Order 412.1a, Work Authorization System...

    Energy Savers [EERE]

    Policy Flash 2014-30 DOE Order 412.1a, Work Authorization System Administrative Change Policy Flash 2014-30 DOE Order 412.1a, Work Authorization System Administrative Change...

  20. Markov Chain Analysis for Large-Scale Grid Systems

    E-Print Network [OSTI]

    Markov Chain Analysis for Large-Scale Grid Systems Christopher Dabrowski Fern Hunt NISTIR 7566 #12;2 #12;3 NISTIR 7566 Markov Chain Analysis for Large-Scale Grid Systems Christopher Dabrowski Software and Systems Division Information Technology Laboratory National Institute of Standards and Technology

  1. Design Considerations for Large Industrial Cogeneration Systems 

    E-Print Network [OSTI]

    Kovacik, J. M.

    1979-01-01

    Cogeneration systems have been contributing to the profitability of many industrial plants for years. However, with the renewed interest in energy and conservation as the cornerstone of the National Energy Act, it is important that the alternatives...

  2. Large-Eddy Simulation for Green Energy and Propulsion Systems...

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

    Large-Eddy Simulation for Green Energy and Propulsion Systems PI Name: Umesh Paliath PI Email: paliath@ge.com Institution: General Electric Allocation Program: INCITE Allocation...

  3. Panel 1, Towards Sustainable Energy Systems: The Role of Large...

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

    Towards sustainable energy systems - The role of large scale hydrogen storage in Germany May 14th, 2014 | Sacramento Political background for the transition to renewable...

  4. Towards a Large-Scale Recording System: Demonstration of Polymer...

    Office of Scientific and Technical Information (OSTI)

    Towards a Large-Scale Recording System: Demonstration of Polymer-Based Penetrating Array for Chronic Neural Recording Citation Details In-Document Search Title: Towards a...

  5. Surrogate modeling for large-scale black-box systems

    E-Print Network [OSTI]

    Liem, Rhea Patricia

    2007-01-01

    This research introduces a systematic method to reduce the complexity of large-scale blackbox systems for which the governing equations are unavailable. For such systems, surrogate models are critical for many applications, ...

  6. An Integrated Air Handling Unit System for Large Commercial Buildings 

    E-Print Network [OSTI]

    Song, L.; Liu, M.

    2001-01-01

    This paper presents an integrated air handling unit system (OAHU) for large commercial buildings. The system introduces outside air into the interior section and circulates the return air to the exterior section. Detailed analytical models...

  7. Discovering Statistical Models of Availability in Large Distributed Systems

    E-Print Network [OSTI]

    Kondo, Derrick

    1 Discovering Statistical Models of Availability in Large Distributed Systems: An Empirical Study. Invariably, these systems are composed of heterogeneous hosts whose individual availability often exhibit describe an effective method for discovering subsets of hosts whose availability have similar statistical

  8. POWER SYSTEMS STABILITY WITH LARGE-SCALE WIND POWER PENETRATION

    E-Print Network [OSTI]

    Bak-Jensen, Birgitte

    of offshore wind farms, wind power fluctuations may introduce several challenges to reliable power system behaviour due to natural wind fluctuations. The rapid power fluctuations from the large scale wind farms Generation Control (AGC) system which includes large- scale wind farms for long-term stability simulation

  9. Lessons Learned: Planning and Operating Power Systems with Large

    E-Print Network [OSTI]

    flow) run-of-river hydro plant. While there are plans for large size photovoltaic (PV) installations on both islands, small residential roof-mounted PV systems have already proliferated, and an almost exponential growth of these small systems is forecasted. Figure 1 Small Net Metered PV Systems Installed

  10. Large Blood Vessels 1.1 Introduction --The Cardiovascular System

    E-Print Network [OSTI]

    Luo, Xiaoyu

    Chapter 1 Large Blood Vessels 1.1 Introduction -- The Cardiovascular System The heart is a pump vessels, the capillaries, in which the main ex- change processes between the blood and tissues take place- sue, collagen, with a few muscle cells. 3 #12;4 CHAPTER 1. LARGE BLOOD VESSELS Figure 1.1: Structure

  11. Duct Leakage Impacts on VAV System Performance in California Large

    E-Print Network [OSTI]

    LBNL-53605 Duct Leakage Impacts on VAV System Performance in California Large Commercial Buildings and for implementing the duct models in a form that could readily be used in this project; and Brian Smith (LBNL

  12. Behavioral Model Equivalence Checking for Large Analog Mixed Signal Systems 

    E-Print Network [OSTI]

    Singh, Amandeep

    2012-07-16

    This thesis proposes a systematic, hierarchical, optimization based semi-formal equivalence checking methodology for large analog/mixed signal systems such as phase locked loops (PLL), analog to digital convertors (ADC) ...

  13. Platforms and real options in large-scale engineering systems

    E-Print Network [OSTI]

    Kalligeros, Konstantinos C., 1976-

    2006-01-01

    This thesis introduces a framework and two methodologies that enable engineering management teams to assess the value of real options in programs of large-scale, partially standardized systems implemented a few times over ...

  14. Author's personal copy Electric Power Systems Research 96 (2013) 225236

    E-Print Network [OSTI]

    Ray, Asok

    2013-01-01

    .elsevier.com/locate/epsr Detection and estimation of demagnetization faults in permanent magnet synchronous motors Subhadeep synchronous motors (PMSMs), which involves abstraction of a qualitative description from a dynamical system management of the power system. Among rotating machines, recent years have witnessed an increasing use

  15. Performance Health Monitoring of Large-Scale Systems

    SciTech Connect (OSTI)

    Rajamony, Ram

    2014-11-20

    This report details the progress made on the ASCR funded project Performance Health Monitoring for Large Scale Systems. A large-­?scale application may not achieve its full performance potential due to degraded performance of even a single subsystem. Detecting performance faults, isolating them, and taking remedial action is critical for the scale of systems on the horizon. PHM aims to develop techniques and tools that can be used to identify and mitigate such performance problems. We accomplish this through two main aspects. The PHM framework encompasses diagnostics, system monitoring, fault isolation, and performance evaluation capabilities that indicates when a performance fault has been detected, either due to an anomaly present in the system itself or due to contention for shared resources between concurrently executing jobs. Software components called the PHM Control system then build upon the capabilities provided by the PHM framework to mitigate degradation caused by performance problems.

  16. Monitoring microbial corrosion in large oilfield water systems

    SciTech Connect (OSTI)

    Chen, E.Y.; Chen, R.B.

    1983-03-01

    Monitoring of microbial corrosion is always difficult because of the sessile nature of bacteria and the lack of meaningful correlation between routine bacteria counts and bacterial activity. This problem is further aggravated in a large oilfield water system because of its size and sampling difficulties. This paper discusses some monitoring techniques currently used in the oil industry, their limitations and the possible areas for improvement. These suggested improvements either are presently being implemented or will be implemented in the Aramco systems.

  17. Monitoring microbial corrosion in large oilfield water systems

    SciTech Connect (OSTI)

    Chen, E.Y.; Chen, R.B.

    1984-07-01

    Monitoring of microbial corrosion is always difficult because of the sessile nature of bacteria and the lack of meaningful correlation between routine bacteria counts and bacterial activity. This problem is further aggravated in a large oilfield water system because of size and sampling difficulties. This paper discusses some monitoring techniques currently used in the oil industry, their limitations, and possible areas for improvement. These improved techniques are in use or will be implemented in the Aramco systems.

  18. Evolving Large Scale UAV Communication System Adrian Agogino

    E-Print Network [OSTI]

    Tumer, Kagan

    Evolving Large Scale UAV Communication System Adrian Agogino UCSC at NASA Ames Mail Stop 269 Corvallis, OR 97331 Kagan.Tumer@ oregonstate.edu ABSTRACT Unmanned Aerial Vehicles (UAVs) have traditionally powered unmanned aerial vehicles (UAVs) to fly long term missions at high altitudes. This will revo

  19. Clock distribution and synchronization in large digital systems 

    E-Print Network [OSTI]

    Hung, Tzu-Chien

    1991-01-01

    of this thesis is to present the analysis and the design of a new clock disl, ribution and synchronization networks for large digital systems. B. State of Current Research With the advance of the VLSI era, there has been a growing interest in exploring...

  20. Radiative Energy Loss in Small and Large Systems

    E-Print Network [OSTI]

    Kolbe, Isobel

    2015-01-01

    We use perturbative quantum chromodynamics to compute the corrections to the energy loss of a hard particle due to short separation distances between the creation of the particle and the in-medium scattering center that stimulates bremsstrahlung radiation. The result has several surprising features. The correction 1) does not go to zero for large path lengths; 2) breaks color triviality; 3) is formally zero in the large formation time approximation, but numerically dominates at large ~100 GeV parent parton energies out to long ~3 fm paths. Although motivated by the recent shocking evidence of collectivity in small systems, 1) and 3) mean our result has critically important implications for \\emph{all} energy loss model comparisons to data. In particular, 3) shows that a large fraction of the gluons radiated do not have a formation time that is large compared to the Debye screening length of the medium, violating a core approximation used in the derivations of all pQCD-based radiative energy loss formulae.

  1. Rearranging the Exponential Wall for Large N-Body Systems

    SciTech Connect (OSTI)

    Watson, Deborah K.; Dunn, Martin [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019 (United States)

    2010-07-09

    The work required to solve for the fully interacting N boson wave function, which is widely believed to scale exponentially with N, is rearranged so the problem scales order by order in a perturbation series as N{sup 0}. The exponential complexity reappears in an exponential scaling with the order of our perturbation series allowing exact analytical calculations for very large N systems through low order.

  2. Greening the Networks of Large-Scale Distributed Systems

    E-Print Network [OSTI]

    Lefèvre, Laurent

    -tier fat-tree architecture Energy savings of Green compared to No off : - 73% for a 20% workload - 68Greening the Networks of Large-Scale Distributed Systems ENS de Lyon ­ INRIA RESO ­ UCBL ­ LIP://perso.ens-lyon.fr/annececile.orgerie/networks.html HERMES : High-level Energy-awaRe Model for bandwidth reservation in End-to-end NetworkS · Unused network

  3. Electron cyclotron beam measurement system in the Large Helical Device

    SciTech Connect (OSTI)

    Kamio, S., E-mail: kamio@nifs.ac.jp; Takahashi, H.; Kubo, S.; Shimozuma, T.; Yoshimura, Y.; Igami, H.; Ito, S.; Kobayashi, S.; Mizuno, Y.; Okada, K.; Osakabe, M.; Mutoh, T. [National Institute for Fusion Science, Toki 509-5292 (Japan)

    2014-11-15

    In order to evaluate the electron cyclotron (EC) heating power inside the Large Helical Device vacuum vessel and to investigate the physics of the interaction between the EC beam and the plasma, a direct measurement system for the EC beam transmitted through the plasma column was developed. The system consists of an EC beam target plate, which is made of isotropic graphite and faces against the EC beam through the plasma, and an IR camera for measuring the target plate temperature increase by the transmitted EC beam. This system is applicable to the high magnetic field (up to 2.75 T) and plasma density (up to 0.8 × 10{sup 19} m{sup ?3}). This system successfully evaluated the transmitted EC beam profile and the refraction.

  4. A Radio-Tracking System for Studying Movements of Deer Author(s): John R. Tester, Dwain W. Warner, William W. Cochran

    E-Print Network [OSTI]

    Minnesota, University of

    A Radio-Tracking System for Studying Movements of Deer Author(s): John R. Tester, Dwain W. Warner of Wildlife Management. http://www.jstor.org #12;A RADIO-TRACKINGSYSTEMFORSTUDYINGMOVEMENTSOF DEER JOHN R monitor movements of deer (Odocoileus virginianus) marked with radio transmitters. Constructiondetails

  5. The CourseMarker CBA System: Improvements over Ceilidh COLIN HIGGINS (CORRESPONDING AUTHOR)

    E-Print Network [OSTI]

    Higgins, Colin

    1 The CourseMarker CBA System: Improvements over Ceilidh COLIN HIGGINS (CORRESPONDING AUTHOR and future directions are discussed. Keywords Free Response Computer Based Assessment (CBA); Automatic historical overview of the CBA systems that have been developed over the last 20 years. The following

  6. Streamflow forecasting for large-scale hydrologic systems 

    E-Print Network [OSTI]

    Awwad, Haitham Munir

    1991-01-01

    Farland (Member) J esTR ao (Head of Department) May 1991 ABSTRACT Streamflow Forecasting for Large-Scale Hydrologic Systems. (May 1991) Haitham Munir Awwad, B. S. , University of Jordan Chair of Advisory Committee: Dr. Juan B. Valdes An on-line streamflow... thankful to Dr. Ralph A. Wurbs and Dr. Marshall J. McFarland for their assistance on my advisory committee. Support for this thesis by the Department of Civil Engineering through the Engineering Excellence Fund, and by the U, S. Army Corps of Engineers...

  7. Optimization of large-scale heterogeneous system-of-systems models.

    SciTech Connect (OSTI)

    Parekh, Ojas; Watson, Jean-Paul; Phillips, Cynthia Ann; Siirola, John; Swiler, Laura Painton; Hough, Patricia Diane (Sandia National Laboratories, Livermore, CA); Lee, Herbert K. H. (University of California, Santa Cruz, Santa Cruz, CA); Hart, William Eugene; Gray, Genetha Anne (Sandia National Laboratories, Livermore, CA); Woodruff, David L. (University of California, Davis, Davis, CA)

    2012-01-01

    Decision makers increasingly rely on large-scale computational models to simulate and analyze complex man-made systems. For example, computational models of national infrastructures are being used to inform government policy, assess economic and national security risks, evaluate infrastructure interdependencies, and plan for the growth and evolution of infrastructure capabilities. A major challenge for decision makers is the analysis of national-scale models that are composed of interacting systems: effective integration of system models is difficult, there are many parameters to analyze in these systems, and fundamental modeling uncertainties complicate analysis. This project is developing optimization methods to effectively represent and analyze large-scale heterogeneous system of systems (HSoS) models, which have emerged as a promising approach for describing such complex man-made systems. These optimization methods enable decision makers to predict future system behavior, manage system risk, assess tradeoffs between system criteria, and identify critical modeling uncertainties.

  8. Large

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLakeLanguage of a fly provesLarge

  9. Universality in Few-body Systems with Large Scattering Length

    E-Print Network [OSTI]

    Eric Braaten; H. -W. Hammer

    2006-08-18

    Particles with short-range interactions and a large scattering length have universal low-energy properties that do not depend on the details of their structure or their interactions at short distances. In the 2-body sector, the universal properties are familiar and depend only on the scattering length a. In the 3-body sector for identical bosons, the universal properties include the existence of a sequence of shallow 3-body bound states called "Efimov states" and log-periodic dependence of scattering observables on the energy and the scattering length. The spectrum of Efimov states in the limit a -> +/- infinity is characterized by an asymptotic discrete scaling symmetry that is the signature of renormalization group flow to a limit cycle. In this review, we present a thorough treatment of universality for the system of three identical bosons and we summarize the universal information that is currently available for other 3-body systems. Our basic tools are the hyperspherical formalism to provide qualitative insights, Efimov's radial laws for deriving the constraints from unitarity, and effective field theory for quantitative calculations. We also discuss topics on the frontiers of universality, including its extension to systems with four or more particles and the systematic calculation of deviations from universality.

  10. Understanding large scale HPC systems through scalable monitoring...

    Office of Scientific and Technical Information (OSTI)

    efficiency. Authors: Mayo, Jackson R. ; Chen, Frank Xiaoxiao ; Pebay, Philippe Pierre ; Wong, Matthew H. ; Thompson, David ; Gentile, Ann C. ; Roe, Diana C. ; De Sapio, Vincent ;...

  11. SIAM conference on applications of dynamical systems. Abstracts and author index

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    A conference (Oct.15--19, 1992, Snowbird, Utah; sponsored by SIAM (Society for Industrial and Applied Mathematics) Activity Group on Dynamical Systems) was held that highlighted recent developments in applied dynamical systems. The main lectures and minisymposia covered theory about chaotic motion, applications in high energy physics and heart fibrillations, turbulent motion, Henon map and attractor, integrable problems in classical physics, pattern formation in chemical reactions, etc. The conference fostered an exchange between mathematicians working on theoretical issues of modern dynamical systems and applied scientists. This two-part document contains abstracts, conference program, and an author index.

  12. Lessons Learned: Planning and Operating Power Systems with Large

    E-Print Network [OSTI]

    flow) run-of-river hydro plant. While there are plans for large size photovoltaic (PV) installations

  13. Hydraulic modeling of large district cooling systems for master planning purposes 

    E-Print Network [OSTI]

    Xu, Chen

    2007-09-17

    District Cooling Systems (DCS) have been widely applied in large institutions such as universities, government facilities, commercial districts, airports, etc. The hydraulic system of a large DCS can be complicated. They ...

  14. Comparative performance of modern digital mammography systems in a large breast screening program

    SciTech Connect (OSTI)

    Yaffe, Martin J. Bloomquist, Aili K.; Hunter, David M.; Mawdsley, Gordon E.; Chiarelli, Anna M.; Muradali, Derek; Mainprize, James G.

    2013-12-15

    Purpose: To compare physical measures pertaining to image quality among digital mammography systems utilized in a large breast screening program. To examine qualitatively differences in these measures and differences in clinical cancer detection rates between CR and DR among sites within that program. Methods: As part of the routine quality assurance program for screening, field measurements are made of several variables considered to correlate with the diagnostic quality of medical images including: modulation transfer function, noise equivalent quanta, d? (an index of lesion detectability) and air kerma to allow estimation of mean glandular dose. In addition, images of the mammography accreditation phantom are evaluated. Results: It was found that overall there were marked differences between the performance measures of DR and CR mammography systems. In particular, the modulation transfer functions obtained with the DR systems were found to be higher, even for larger detector element sizes. Similarly, the noise equivalent quanta, d?, and the phantom scores were higher, while the failure rates associated with low signal-to-noise ratio and high dose were lower with DR. These results were consistent with previous findings in the authors’ program that the breast cancer detection rates at sites employing CR technology were, on average, 30.6% lower than those that used DR mammography. Conclusions: While the clinical study was not large enough to allow a statistically powered system-by-system assessment of cancer detection accuracy, the physical measures expressing spatial resolution, and signal-to-noise ratio are consistent with the published finding that sites employing CR systems had lower cancer detection rates than those using DR systems for screening mammography.

  15. Large Monitoring Systems: Data Analysis, Design and Deployment

    E-Print Network [OSTI]

    Rajagopal, Ram

    2009-01-01

    and Materials; Smart Systems for Bridges, Structures, andT. C. Tsaod. Smart suspension systems for bridge-friendly

  16. Parallel I/O Software Infrastructure for Large-Scale Systems

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

    Systems Parallel IO Software Infrastructure for Large-Scale Systems | Tags: Math & Computer Science Choudhary.png An illustration of how MPI---IO file domain alignment...

  17. Small Wind Electric Systems: A Guide Produced for the Tennessee Valley Authority (Revised) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2009-06-01

    Small Wind Electric Systems: A Guide Produced for the Tennessee Valley Authority provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and their economics. Topics discussed in the guide include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a regional wind resource map and a list of incentives and contacts for more information.

  18. Software is everywhere, from cell phones to large military systems.

    E-Print Network [OSTI]

    Aviation Administration Advanced Automation System [7, 9], the California Department of Motor Vehicle]. These aerospace systems rely heavily on software, which has been called the Achilles Heel of aero- space systems

  19. Achieving Software Robustness via Large-Scale Multiagent Systems

    E-Print Network [OSTI]

    Huhns, Michael N.

    telecommunications, electric power distribution, water supplies, airline traffic, weapon systems the Internet. Our society has come to expect uninterrupted service from these systems. Unfortunately, when

  20. AMP: An Affinity-based Metadata Prefetching Scheme in Large-Scale Distributed Storage Systems

    E-Print Network [OSTI]

    Zhu, Yifeng

    1 AMP: An Affinity-based Metadata Prefetching Scheme in Large-Scale Distributed Storage Systems Lin significantly reduce access latency for I/O systems. In distributed storage systems, prefetching for metadata Prefetching (AMP) scheme is proposed for metadata servers in large-scale distributed storage systems

  1. Energy Conservation of Air Conditioning Systems in Large Public Buildings 

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01

    with the heating characteristics of the exterior -protected construction, the set value of the temperature of the air-conditioning, the lectotype of the Central air-conditioning system, the regulation and the modification of the transmission and distribution system...

  2. Model Abstraction Techniques for Large-Scale Power Systems

    E-Print Network [OSTI]

    Report on System Simulation using High Performance Computing Prepared by New Mexico Tech New Mexico: Application of High Performance Computing to Electric Power System Modeling, Simulation and Analysis Task Two

  3. Energy aware RAID Configuration for Large Storage Systems Norifumi Nishikawa

    E-Print Network [OSTI]

    Butt, Ali R.

    configurations have been pursued from an energy saving perspective. We first investigate how different RAID for performance, capacity, and efficiency. Such RAID groups, however, might not be efficient for energy saving because the unit of power control becomes large. Aiming to realize storage energy saving, it is important

  4. Reconfiguration-Assisted Charging in Large-Scale Lithium-ion Battery Systems

    E-Print Network [OSTI]

    Reconfiguration-Assisted Charging in Large-Scale Lithium-ion Battery Systems Liang He1 , Linghe, TX, USA ABSTRACT Large-scale Lithium-ion batteries are widely adopted in many systems and heterogeneous discharging con- ditions, cells in the battery system may have differ- ent statuses

  5. An Energy-Efficient Framework for Large-Scale Parallel Storage Systems

    E-Print Network [OSTI]

    Qin, Xiao

    An Energy-Efficient Framework for Large-Scale Parallel Storage Systems Ziliang Zong, Matt Briggs-scale and energy-efficient parallel storage systems. To validate the efficiency of the proposed framework, a buffer that this new framework can significantly improves the energy efficiency of large-scale parallel storage systems

  6. Phoenix Rebirth: Scalable MapReduce on a Large-Scale Shared-Memory System

    E-Print Network [OSTI]

    Kozyrakis, Christos

    Phoenix Rebirth: Scalable MapReduce on a Large-Scale Shared-Memory System Richard M. Yoo, Anthony for large-scale, shared-memory systems can be challenging. This work optimizes Phoenix, a MapReduce runtime for clusters and CMP systems [5]­[8]. This work focuses on Phoenix [5], a MapReduce imple- mentation for shared

  7. Large Scale Geothermal Exchange System for Residential, Office and Retail

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy ResourcesProject | Open Energy Information Large

  8. The global distribution of large subaerial distributary fluvial systems 

    E-Print Network [OSTI]

    Gwynn, David Wilkinson

    2002-01-01

    of these features was presented by Wilkinson et al. (1997). This thesis attempts to provide a more detailed characterization and classification of these features. Fourteen systems in South America, Africa, and Asia were examined using Shuttle photography and AVHRR...

  9. The Analysis and Development of Large Industrial Steam Systems 

    E-Print Network [OSTI]

    Waterland, A. F.

    1980-01-01

    Chemicals, petroleum, pulp and paper, and many other industries depend heavily on extensive complex steam systems for thermal and mechanical energy delivery. Steam's versatility and desirable characteristics as both a heat transfer medium and a...

  10. Transient Analysis of Large-scale Stochastic Service Systems 

    E-Print Network [OSTI]

    Ko, Young Myoung

    2012-07-16

    accelerating parameters, thereby establishing some useful mathematical frameworks and giving insights into important characteristics and intuitions. However, some studies show significant limitations when used to approximate real service systems: (i...

  11. Low Dimensional Behavior of Large Systems of Globally Coupled Oscillators

    E-Print Network [OSTI]

    Edward Ott; Thomas M. Antonsen

    2008-06-02

    It is shown that, in the infinite size limit, certain systems of globally coupled phase oscillators display low dimensional dynamics. In particular, we derive an explicit finite set of nonlinear ordinary differential equations for the macroscopic evolution of the systems considered. For example, an exact, closed form solution for the nonlinear time evolution of the Kuramoto problem with a Lorentzian oscillator frequency distribution function is obtained. Low dimensional behavior is also demonstrated for several prototypical extensions of the Kuramoto model, and time-delayed coupling is also considered.

  12. A SUBSPACE APPROACH TO FAULT DIAGNOSTICS IN LARGE POWER SYSTEMS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and to fast detect and identify possible failures. In this article, we focus on failures in power lines which translate in sudden changes in the electric impedance. To keep track of the current flowing in the line), transmission line states are only refreshed on an hourly basis [1]. For rather static systems, the au- thors

  13. Duct Systems in large commercial buildings: Physical characterization, air leakage, and heat conduction gains

    E-Print Network [OSTI]

    Fisk, W.J.

    2011-01-01

    LBNL-42339 Duct Systems in Large Commercial Buildings:and conduction heat gains of duct systems. Different methodscompared. ELAs-of supply ducts ranged from 0.4 to 2.0 cm 2

  14. Web-based energy information systems for large commercial buildings

    SciTech Connect (OSTI)

    Motegi, Naoya; Piette, Mary Ann

    2003-03-29

    Energy Information Systems (EIS), which monitor and organize building energy consumption and related trend data over the Internet, have been evolving over the past decade. This technology helps perform key energy management functions such as organizing energy use data, identifying energy consumption anomalies, managing energy costs, and automating demand response strategies. During recent years numerous developers and vendors of EIS have been deploying these products in a highly competitive market. EIS offer various software applications and services for a variety of purposes. Costs for such system vary greatly depending on the system's capabilities and how they are marketed. Some products are marketed directly to end users while others are made available as part of electric utility programs. EIS can be a useful tool in building commissioning and retro-commissioning. This paper reviews more than a dozen EIS. We have developed an analytical framework to characterize the main features of these products, which are developed for a variety of utility programs and end-use markets. The purpose of this research is to evaluate EIS capabilities and limitations, plus examine longer-term opportunities for utilizing such technology to improve building energy efficiency and load management.

  15. Global climate change is currently affecting many ecological systems and may have large impacts on agri-

    E-Print Network [OSTI]

    Articles Global climate change is currently affecting many ecological systems and may have large (Dunbar et al.1994).Such changes in global climate patterns portend potentially large effects on both be crucial in the tropics, where most agriculture is in rain-fed systems and climate change has a potentially

  16. Perceptions of Real Options in Large System Acquisition: Empirical Descriptions and Comparison with Theory

    E-Print Network [OSTI]

    Ford, David N.

    Perceptions of Real Options in Large System Acquisition: Empirical Descriptions and Comparison Postgraduate School Monterey, California May 18 - 19, 2005 #12;1 Perceptions of Real Options in Large System to meet performance, schedule, and cost targets. Flexibility in the form of real options can

  17. Energy-Aware Routing in Sensor Networks: A Large System Approach

    E-Print Network [OSTI]

    Srikant, Rayadurgam

    Energy-Aware Routing in Sensor Networks: A Large System Approach Longbi Lin a , Ness B. Shroff a, Sensor Network, Large System, Mathematical Programming/Optimization, Simulations 1 Introduction Energy re- plenishment. Energy sources, e.g., solar cells, can be attached to sensor nodes to prolong

  18. Lyapunov Analysis Captures the Collective Dynamics of Large Chaotic Systems Kazumasa A. Takeuchi,1,2

    E-Print Network [OSTI]

    Sano, Masaki

    Lyapunov Analysis Captures the Collective Dynamics of Large Chaotic Systems Kazumasa A. Takeuchi,1, that the collective dynamics of large chaotic systems is encoded in their Lyapunov spectra: most modes are typically numbers: 05.45.Àa, 05.70.Ln, 05.90.+m A common way of characterizing chaos is to measure Lyapunov

  19. Technical feasibility of storage on large dish stirling systems. (Technical

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback SystemGimbaled X-RayChina (Conference) | SciTech

  20. A Performance Oriented Design Methodology for Large-Scale Distributed Data Intensive Information Systems

    E-Print Network [OSTI]

    Kerschberg, Larry

    -4444, USA Abstract The Earth Observing System (EOS) Data and In- formation System (EOSDIS) is perhaps one to the design of the EOSDIS Core System (ECS). Performance results, based on queuing network models of ECS-scale, geographically distributed, and handle very large volumes of data is the Earth Ob- serving System (EOS) Data

  1. Large-amplitude oscillations and chaos in a Hamiltonian plasma system with many degrees of freedom

    SciTech Connect (OSTI)

    Farina, Daniela [Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, EURATOM-ENEA-CNR Association, via Cozzi 53, 20125 Milan (Italy); Pozzoli, Roberto [Istituto Nazionale di Fisica Nucleare and Istituto Nazionale di Fisica della Materia, Universita degli Studi di Milano, Dipartimento di Fisica, via Celoria 16, 20133 Milan (Italy)

    2004-09-01

    Taking the beam-plasma system as a reference Hamiltonian system with many degrees of freedom, the connection between the development of large amplitude oscillations and stochasticity of the system (measured through the time-dependent maximum Lyapunov exponent) is investigated. It is found that the development of self-consistent large amplitude oscillations occurs in correspondence with the onset of chaos, and is related to a well defined change of topology of the phase space of the system. It is also shown that in a (Hamiltonian) linearly stable regime the development of large amplitude oscillations can occur when weakly dissipative processes are introduced.

  2. Hydraulic Modeling of Large District Cooling Systems for Master Planning Purposes 

    E-Print Network [OSTI]

    Xu, C.; Chen, Q.; Claridge, D. E.; Turner, W. D.; Deng, S.

    2006-01-01

    District Cooling Systems for Master Planning Purposes Chen Xu Qiang Chen David E. Claridge Dan Turner Song Deng Energy Systems Laboratory Texas A&M University College Station, TX 77843-3581 KEYWORD Pipe Network, District Cooling System, Central... Chilled Water System, Master Planning, Hydraulic Simulation ABSTRACT District Cooling Systems (DCS) have been widely applied in large institutions such as universities, government facilities, commercial districts, airports etc. The hydraulic system of a...

  3. A comprehensive monitoring system for damage identification and location in large structural and mechanical systems

    SciTech Connect (OSTI)

    Farrar, C.R.; Doebling, S.W.; Prime, M.B. [and others

    1998-11-01

    This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project conducted at the Los Alamos National Laboratory (LANL). This project has focused on developing and experimentally verifying a suite of analytical tools for identifying the onset of damage in structural and mechanical systems from changes in their vibration characteristics. A MATLAB-based computer code referred to as Damage Identification And Modal Analysis of Data (DIAMOND) was developed. The code was then extensively exercised on data obtained from a variety of test structures. The most notable structure was an in situ bridge located ten mile north of Truth or Consequences, New Mexico. The suite of tools contained in DIAMOND is now being applied to the nuclear weapons enhanced surveillance program and an industrial partner has asked to enter into a partnership so that they can implement routines from DIAMOND into their commercial damage assessment hardware for large civil engineering structures. Because of the large volume of requests from around the world for DIAMOND, it can now be downloaded from the web site: http://esaea-www.esa.lanl.gov/damage{_}id.

  4. The SAL Interpreter for Large-Scale Optimization in Distributed Control Systems

    E-Print Network [OSTI]

    Bailey-Kellogg, Chris

    The SAL Interpreter for Large-Scale Optimization in Distributed Control Systems Christopher Bailey sensor-rich control systems interact with spa- tially distributed physical environments. This paper interpretation and control tasks for distributed physical systems. SAL provides a set of powerful, abstract com

  5. Model-constrained optimization methods for reduction of parameterized large-scale systems

    E-Print Network [OSTI]

    Bui-Thanh, Tan

    2007-01-01

    Most model reduction techniques employ a projection framework that utilizes a reduced-space basis. The basis is usually formed as the span of a set of solutions of the large-scale system, which are computed for selected ...

  6. Model-Constrained Optimization Methods for Reduction of Parameterized Large-Scale Systems

    E-Print Network [OSTI]

    Tan, Bui-Thanh

    Most model reduction techniques employ a projection framework that utilizes a reduced-space basis. The basis is usually formed as the span of a set of solutions of the large-scale system, which are computed for selected ...

  7. Regulation and large motion tracking for active magnetic bearing system using sliding mode control 

    E-Print Network [OSTI]

    Sun, Guangyoung

    1999-01-01

    In this thesis, sliding mode control (SMC), one of nonlinear control theories is designed based on the original nonlinear active magnetic bearing (AMB) system with 4 degrees of freedom. It is applied to the regulation/stabilization and large motion...

  8. A Scalable Approach for the Secure and Authorized Tracking of the Availability of Entities in Distributed Systems

    E-Print Network [OSTI]

    A Scalable Approach for the Secure and Authorized Tracking of the Availability of Entities and proliferation of distributed applications continues to increase a need often arises to track the availability present a transport-independent scheme for tracking the availability of entities in distributed systems

  9. Aalborg Universitet Impact of Wind Shear and Tower Shadow Effects on Power System with Large Scale

    E-Print Network [OSTI]

    Hu, Weihao

    @et.aau.dk, csu@et.aau.dk, zch@et.aau.dk Abstract ­ Grid connected wind turbines are fluctuating power sources due and the power flow situation of the original power system especially when the integration of wind powerAalborg Universitet Impact of Wind Shear and Tower Shadow Effects on Power System with Large Scale

  10. Electrostatically Embedded Many-Body Expansion for Large Systems, with Applications

    E-Print Network [OSTI]

    Truhlar, Donald G

    Electrostatically Embedded Many-Body Expansion for Large Systems, with Applications to Water present electrostatically embedded two-body and three-body expansions for calculating the energies of molecular clusters. The system is divided into fragments, and dimers or trimers of fragments are calculated

  11. Development and Testing of an Information Monitoring and Diagnostics System for Large Commercial Buildings

    E-Print Network [OSTI]

    with the lack of feedback available from current Energy Management and Control Systems (EMCS). Today's EMCSDevelopment and Testing of an Information Monitoring and Diagnostics System for Large Commercial monitoring projects have shown whole-building energy savings of 20% or more through improved operation

  12. SPECTRAL BASED METHODS THAT STREAMLINE THE SEARCH FOR FAILURE SCENARIOS IN LARGE-SCALE DISTRIBUTED SYSTEMS

    E-Print Network [OSTI]

    the detection of failure sce- narios in distributed grid computing, cloud computing and other large scale performance deteriorates and fails. KEY WORDS grid computing, cloud computing, failure, spectral expan- sion systems such as computing grids and commercial cloud systems has made mass computing services available

  13. IEEE TRANSACTIONS ON POWER SYSTEMS 1 Large-Scale Integration of Deferrable

    E-Print Network [OSTI]

    Oren, Shmuel S.

    . Index Terms--Load management, power generation scheduling, wind power generation. I. INTRODUCTION on power system operations it is necessary to represent the balancing oper- ations of the remaining gridIEEE TRANSACTIONS ON POWER SYSTEMS 1 Large-Scale Integration of Deferrable Demand and Renewable

  14. A Programming Model for Context-Aware Applications in Large-Scale Pervasive Systems

    E-Print Network [OSTI]

    Dustdar, Schahram

    .g. pervasive health-care, city traffic monitoring, environmental monitoring, smart grids). These large- scale. Examples of such trends are pervasive health-care, city traffic scheduling, environmental monitoring, and smart grids. These systems differ significantly from conventional context-aware systems, which focus

  15. Exploring Adaptive Reconfiguration to Optimize Energy Efficiency in Large-Scale Battery Systems

    E-Print Network [OSTI]

    with hundreds or thousands of batteries are now widely used in electric vehicles [33], [36], energy storageExploring Adaptive Reconfiguration to Optimize Energy Efficiency in Large-Scale Battery Systems systems such as electric vehicles and smart micro-grids. For many applications, the load requirements

  16. Self-Adaptive Power Management of Idle Nodes in Large Scale Systems

    E-Print Network [OSTI]

    Zhu, Hong

    Self-Adaptive Power Management of Idle Nodes in Large Scale Systems YONGPENG LIU(1) , HONG ZHU(2 with multiple level dynamic sleep mechanisms to reduce power consumption. However, awaking sleeping nodes takes to balance between the systems energy consumption and the response time is a key problem in the power

  17. Mining for Statistical Models of Availability in Large-Scale Distributed Systems

    E-Print Network [OSTI]

    Kondo, Derrick

    Mining for Statistical Models of Availability in Large-Scale Distributed Systems: An Empirical and Telecommunication Systems (MASCOTS 2009) B. Javadi (INRIA) Statistical Models of Availability MASCOTS 2009 1 / 34) Statistical Models of Availability MASCOTS 2009 2 / 34 #12;Introduction and Motivation P2P, Grid, Cloud

  18. Large-scale Probabilistic Forecasting in Energy Systems using Sparse Gaussian Conditional Random Fields

    E-Print Network [OSTI]

    Kolter, J. Zico

    in a wide range of energy systems, including forecasting demand, renewable generation, and electricityLarge-scale Probabilistic Forecasting in Energy Systems using Sparse Gaussian Conditional Random demonstrated that in the context of electrical demand and wind power, probabilistic forecasts can offer

  19. Neural Networks and Expert Systems to solve the problems of large amounts of Experimental Data at JET

    E-Print Network [OSTI]

    Neural Networks and Expert Systems to solve the problems of large amounts of Experimental Data at JET

  20. A Systematic Approach to the Design of a Large Scale Detritiation System for Controlled Thermonuclear Fusion Experiments

    E-Print Network [OSTI]

    A Systematic Approach to the Design of a Large Scale Detritiation System for Controlled Thermonuclear Fusion Experiments

  1. Mechanically Cooled Large-Volume Germanium Detector Systems for Nuclear Explosion Monitoring DOENA27323-1

    SciTech Connect (OSTI)

    Hull, E.L.

    2006-07-28

    Compact maintenance free mechanical cooling systems are being developed to operate large volume germanium detectors for field applications. To accomplish this we are utilizing a newly available generation of Stirling-cycle mechanical coolers to operate the very largest volume germanium detectors with no maintenance. The user will be able to leave these systems unplugged on the shelf until needed. The flip of a switch will bring a system to life in ~ 1 hour for measurements. The maintenance-free operating lifetime of these detector systems will exceed 5 years. These features are necessary for remote long-duration liquid-nitrogen free deployment of large-volume germanium gamma-ray detector systems for Nuclear Explosion Monitoring. The Radionuclide Aerosol Sampler/Analyzer (RASA) will greatly benefit from the availability of such detectors by eliminating the need for liquid nitrogen at RASA sites while still allowing the very largest available germanium detectors to be reliably utilized.

  2. Title: Author(s):

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnicalInformation FederatedInformationTITLE: AUTHOR(S)Patterns,(Journal A uttwr(s):

  3. ACCESS TO INFORMATION RESOURCES AND DATA Authority: Vice Chancellor Information Technology Systems

    E-Print Network [OSTI]

    Adhar, Gur Saran

    standard guidelines for information systems security and integrity, including COBIT standards. They address Technology Systems History: Updated February 15, 2010; Reformatted June 6, 2005; supersedes policy ITS 2 Links: 07.100 and 07.300 Responsible Information Technology Systems Division Office: I. Purpose

  4. UNIVERSITY OF CALIFORNIA, SAN DIEGO MOLD: A System for Breaking Down Large Visualization

    E-Print Network [OSTI]

    Baden, Scott B.

    UNIVERSITY OF CALIFORNIA, SAN DIEGO MOLD: A System for Breaking Down Large Visualization and Post thanks go out to Scott Baden and Peter Diamessis for their countless hours of help with MOLD. Thanks (NPACI) under NSF contract ACI9619020, by the UC MICRO program award number 99-007, and by Sun

  5. Harnessing the Cloud for Securely Outsourcing Large-scale Systems of Linear Equations

    E-Print Network [OSTI]

    Wang, Jia

    1 Harnessing the Cloud for Securely Outsourcing Large-scale Systems of Linear Equations Cong Wang and cloud are not necessarily in the same trusted domain brings many security concerns and chal- lenges the quality of the computed results. Thus, we argue that the cloud is intrinsically not secure from

  6. Kronos: A Java-Based Software System for the Processing and Retrieval of Large Scale

    E-Print Network [OSTI]

    Bader, David A.

    Kronos: A Java-Based Software System for the Processing and Retrieval of Large Scale AVHRR Data and preprocessing, indexing and storage, search and processing engine, and a Java interface. We illustrate the power of Maryland, College Park, MD 20742 March 4, 1999 1UMIACS and Department of Electrical Engineering 2Department

  7. Infuse: A Tool for Automatically Managing and Coordinating Source Changes in Large Systems

    E-Print Network [OSTI]

    Perry, Dewayne E.

    Infuse: A Tool for Automatically Managing and Coordinating Source Changes in Large Systems Dewayne changes occur outside the tool. In contrast, Infuse concentrates on the actual change process and provides facilities for both managing and coordinating source changes. Infuse provides facilities for automatically

  8. Domain Controlled Architecture A New Approach for Large Scale Software Integrated Automotive Systems

    E-Print Network [OSTI]

    Kühnhauser, Winfried

    Domain Controlled Architecture A New Approach for Large Scale Software Integrated Automotive Scale Software Integration, LSSI, Automotive Real Time, Multi-core, Many-core, Embedded Automo- tive mobility domain. The automotive in- dustry is confronted with a rising system complexity and several

  9. Beyond Availability: Towards a Deeper Understanding of Machine Failure Characteristics in Large Distributed Systems

    E-Print Network [OSTI]

    Gibbons, Phillip B.

    Beyond Availability: Towards a Deeper Understanding of Machine Failure Characteristics in Large, availability research has reached a point where properties beyond these initial findings become impor- tant for designing highly available distributed systems. Using several case studies, we further show that our design

  10. Nonlinear Seismic Correlation Analysis of the JNES/NUPEC Large-Scale Piping System Tests.

    SciTech Connect (OSTI)

    Nie,J.; DeGrassi, G.; Hofmayer, C.; Ali, S.

    2008-06-01

    The Japan Nuclear Energy Safety Organization/Nuclear Power Engineering Corporation (JNES/NUPEC) large-scale piping test program has provided valuable new test data on high level seismic elasto-plastic behavior and failure modes for typical nuclear power plant piping systems. The component and piping system tests demonstrated the strain ratcheting behavior that is expected to occur when a pressurized pipe is subjected to cyclic seismic loading. Under a collaboration agreement between the US and Japan on seismic issues, the US Nuclear Regulatory Commission (NRC)/Brookhaven National Laboratory (BNL) performed a correlation analysis of the large-scale piping system tests using derailed state-of-the-art nonlinear finite element models. Techniques are introduced to develop material models that can closely match the test data. The shaking table motions are examined. The analytical results are assessed in terms of the overall system responses and the strain ratcheting behavior at an elbow. The paper concludes with the insights about the accuracy of the analytical methods for use in performance assessments of highly nonlinear piping systems under large seismic motions.

  11. Large Matched-Index-of-Refraction (MIR) Flow Systems for International Collaboration In Fluid Mechanics

    SciTech Connect (OSTI)

    Donald M. McEligot; Stefan Becker; Hugh M. McIlroy, Jr.

    2010-07-01

    In recent international collaboration, INL and Uni. Erlangen have developed large MIR flow systems which can be ideal for joint graduate student education and research. The benefit of the MIR technique is that it permits optical measurements to determine flow characteristics in complex passages and around objects to be obtained without locating a disturbing transducer in the flow field and without distortion of the optical paths. The MIR technique is not new itself; others employed it earlier. The innovation of these MIR systems is their large size relative to previous experiments, yielding improved spatial and temporal resolution. This report will discuss the benefits of the technique, characteristics of the systems and some examples of their applications to complex situations. Typically their experiments have provided new fundamental understanding plus benchmark data for assessment and possible validation of computational thermal fluid dynamic codes.

  12. Mechanically Cooled Large-Volume Germanium Detector Systems for Nuclear Explosion Monitoring

    SciTech Connect (OSTI)

    Hull, Ethan L.; Pehl, Richard H.; Lathrop, James R.; Martin, Gregory N.; Mashburn, R. B.; Miley, Harry S.; Aalseth, Craig E.; Hossbach, Todd W.; Bowyer, Ted W.

    2006-09-21

    Compact maintenance free mechanical cooling systems are being developed to operate large volume (~570 cm3, ~3 kg, 140% or larger) germanium detectors for field applications. We are using a new generation of Stirling-cycle mechanical coolers for operating the very largest volume germanium detectors with absolutely no maintenance or liquid nitrogen requirements. The user will be able to leave these systems unplugged on the shelf until needed. The flip of a switch will bring a system to life in ~1 hour for measurements. The maintenance-free operating lifetime of these detector systems will exceed five years. These features are necessary for remote long-duration liquid-nitrogen free deployment of large-volume germanium gamma-ray detector systems for Nuclear Explosion Monitoring (NEM). The Radionuclide Aerosol Sampler/Analyzer (RASA) will greatly benefit from the availability of such detectors by eliminating the need for liquid nitrogen at RASA sites while still allowing the very largest available germanium detectors to be utilized. These mechanically cooled germanium detector systems being developed here will provide the largest, most sensitive detectors possible for use with the RASA. To provide such systems, the appropriate technical fundamentals are being researched. Mechanical cooling of germanium detectors has historically been a difficult endeavor. The success or failure of mechanically cooled germanium detectors stems from three main technical issues: temperature, vacuum, and vibration. These factors affect one another. There is a particularly crucial relationship between vacuum and temperature. These factors will be experimentally studied both separately and together to insure a solid understanding of the physical limitations each factor places on a practical mechanically cooled germanium detector system for field use. Using this knowledge, a series of mechanically cooled germanium detector prototype systems are being designed and fabricated. Our collaborators at Pacific Northwest National Laboratory (PNNL) will evaluate these detector systems on the bench top and eventually in RASA systems to insure reliable and practical operation.

  13. Engineering Systems Matrix: An organizing framework for modeling large-scale complex systems

    E-Print Network [OSTI]

    Bartolomei, Jason E.

    The scope and complexity of engineered systems are ever-increasing as burgeoning global markets, unprecedented technological capabilities, rising consumer expectations, and ever-changing social requirements present difficult ...

  14. Mechanically Cooled Large-Volume Germanium Detector Systems for Neclear Explosion Monitoring DOENA27323-2

    SciTech Connect (OSTI)

    Hull, E.L.

    2006-10-30

    Compact maintenance free mechanical cooling systems are being developed to operate large volume high-resolution gamma-ray detectors for field applications. To accomplish this we are utilizing a newly available generation of Stirling-cycle mechanical coolers to operate the very largest volume germanium detectors with no maintenance. The user will be able to leave these systems unplugged on the shelf until needed. The maintenance-free operating lifetime of these detector systems will exceed 5 years. Three important factors affect the operation of mechanically cooled germanium detectors: temperature, vacuum, and vibration. These factors will be studied in the laboratory at the most fundamental levels to insure a solid understanding of the physical limitations each factor places on a practical mechanically cooled germanium detector system. Using this knowledge, mechanically cooled germanium detector prototype systems will be designed and fabricated.

  15. HPC-Colony: Services and Interfaces to Aupport Systems With Very Large Numbers of Processors

    SciTech Connect (OSTI)

    Jones, T; Kale, L; Moreira, J; Mendes, C; Chakravorty, S; Tauferner, A; Inglett, T

    2007-01-31

    The HPC-Colony Project, a collaboration with Lawrence Livermore National Laboratory, the University of Illinois at Urbana-Champaign and IBM, is focused on services and interfaces for very large numbers of processors. Advances in parallel systems in the last decade have delivered phenomenal progress in the overall capability available to a single parallel application. Several systems with peak capability of over 100TF are already available and systems are expected to exceed 1PF within a few years. Despite these impressive advances in peak performance capability, the sustained performance of these systems continues to fall as a percentage of the peak capability. Initial analysis suggests that key architectural bottlenecks (in hardware and software) are responsible for the lower sustained performance and some architectural change of direction may be necessary to address the declining sustained performance. In this proposal we focus on addressing software architectural bottlenecks, in the areas of operating system and runtime systems. While the trend towards larger processor counts benefits application developers through more processing power, it also challenges application developers to harness ever-increasing numbers of processors for productive work. Much of the burden falls to operating systems and runtime systems that were originally designed for much smaller processor counts. Under the Colony project, we are researching and developing system software to enable general purpose operating and runtime systems for tens of thousands of processors. Difficulties in achieving a balanced partitioning and dynamically scheduling workloads can limit scaling for complex problems on large machines. Scientific simulations that span components of large machines require common operating system services, such as process scheduling, event notification, and job management to scale to large machines. Today, application programmers must explicitly manage these resources. We address scaling issues and porting issues by delegating resource management tasks to a sophisticated parallel OS. Our definition of ''managing resources'' includes balancing CPU time, network utilization, and memory usage across the entire machine. We believe a consistent environment that provides newly necessary technology (such as fault tolerance) will also provide important efficiencies in system administration. The primary objective of the Colony Project is to develop technologies that enable application scientists to easily scale applications to computing platforms comprised of tens of thousands to hundreds of thousands of compute cores. This will be accomplished by addressing several problem areas that are known to be key factors when scaling applications to tens of thousands of processors. First, by providing a smart runtime system to quickly and dynamically make cpu and memory and interconnect resource management adjustments, we remove the burden of achieving applications that are highly tuned and load-balanced for a particular execution instance (i.e. a particular input datasets and machine platform combination). Second, by providing a full complement of system services including the entire Linux system call set, we ease the challenge of developing portable applications since lightweight kernels frequently incorporate only a small subset of the POSIX calls prevalent in typical large scientific applications. Third, by providing fundamental changes to the Linux kernel that reduce variability in context switch times and provide for parallel-aware scheduling across the entire machine, we remove the negative impact of synchronizing collectives on bulk-synchronous applications. Fourth, by providing fault tolerance mechanisms that utilize our unique migration abilities in conjunction with in-memory techniques for minimal overhead, we eliminate the necessity for costly frequent application-driven check-points. Our research utilizes full implementations of these technologies on systems consisting of tens of thousands of processors.

  16. A Tutorial on Detection and Characterization of Special Behavior in Large Electric Power Systems

    SciTech Connect (OSTI)

    Hauer, John F.; DeSteese, John G.

    2004-08-20

    The objective of this document is to report results in the detection and characterization of special behavior in large electric power systems. Such behavior is usually dynamic in nature, but not always. This is also true for the underlying sources of special behavior. At the device level, a source of special behavior might be an automatic control system, a dynamic load, or even a manual control system that is operated according to some sharply defined policy. Other possible sources include passive system conditions, such as the state of a switched device or the amount of power carried on some critical line. Detection and characterization are based upon “signature information” that is extracted from the behavior observed. Characterization elements include the signature information itself, the nature of the behavior and its likely causes, and the associated implications for the system or for the public at large. With sufficient data and processing, this characterization may directly identify a particular condition or device at a specific location. Such conclusive results cannot always be done from just one observation, however. Information environments that are very sparse may require multiple observations, comparative model studies, and even direct testing of the system.

  17. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2010-07-12

    This work studies the performance and scalability characteristics of"hybrid'"parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today and 128-core chips coming soon, we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.

  18. MPI-hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2010-03-20

    This work studies the performance and scalability characteristics of"hybrid'" parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today and 128-core chips coming soon, we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.

  19. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2010-06-14

    This work studies the performance and scalability characteristics of"hybrid" parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and execution on modern parallel systems. As the computing industry trends towards multi-core processors, with four- and six-core chips common today and 128-core chips coming soon, we wish to better understand how algorithmic and parallel programming choices impact performance and scalability on large, distributed-memory multi-core systems. Our findings indicate that the hybrid-parallel implementation, at levels of concurrency ranging from 1,728 to 216,000, performs better, uses a smaller absolute memory footprint, and consumes less communication bandwidth than the traditional, MPI-only implementation.

  20. EXPERIMENTAL BUBBLE FORMATION IN A LARGE SCALE SYSTEM FOR NEWTONIAN AND NONNEWTONIAN FLUIDS

    SciTech Connect (OSTI)

    Leishear, R; Michael Restivo, M

    2008-06-26

    The complexities of bubble formation in liquids increase as the system size increases, and a photographic study is presented here to provide some insight into the dynamics of bubble formation for large systems. Air was injected at the bottom of a 28 feet tall by 30 inch diameter column. Different fluids were subjected to different air flow rates at different fluid depths. The fluids were water and non-Newtonian, Bingham plastic fluids, which have yield stresses requiring an applied force to initiate movement, or shearing, of the fluid. Tests showed that bubble formation was significantly different in the two types of fluids. In water, a field of bubbles was formed, which consisted of numerous, distributed, 1/4 to 3/8 inch diameter bubbles. In the Bingham fluid, large bubbles of 6 to 12 inches in diameter were formed, which depended on the air flow rate. This paper provides comprehensive photographic results related to bubble formation in these fluids.

  1. Impact of Distribution-Connected Large-Scale Wind Turbines on Transmission System Stability during Large Disturbances: Preprint

    SciTech Connect (OSTI)

    Zhang, Y.; Allen, A.; Hodge, B. M.

    2014-02-01

    This work examines the dynamic impacts of distributed utility-scale wind power during contingency events on both the distribution system and the transmission system. It is the first step toward investigating high penetrations of distribution-connected wind power's impact on both distribution and transmission stability.

  2. Abstract--Many large scale system blackouts involve relay misoperations. Traditional relay algorithms and settings need to

    E-Print Network [OSTI]

    1 Abstract--Many large scale system blackouts involve relay misoperations. Traditional relay-wide blackouts involve relay misoperations [1]. Evaluation and improvement of existing relay algorithms

  3. Fail-Safe Design for Large Capacity Lithium-Ion Battery Systems

    SciTech Connect (OSTI)

    Kim, G. H.; Smith, K.; Ireland, J.; Pesaran, A.

    2012-07-15

    A fault leading to a thermal runaway in a lithium-ion battery is believed to grow over time from a latent defect. Significant efforts have been made to detect lithium-ion battery safety faults to proactively facilitate actions minimizing subsequent losses. Scaling up a battery greatly changes the thermal and electrical signals of a system developing a defect and its consequent behaviors during fault evolution. In a large-capacity system such as a battery for an electric vehicle, detecting a fault signal and confining the fault locally in the system are extremely challenging. This paper introduces a fail-safe design methodology for large-capacity lithium-ion battery systems. Analysis using an internal short circuit response model for multi-cell packs is presented that demonstrates the viability of the proposed concept for various design parameters and operating conditions. Locating a faulty cell in a multiple-cell module and determining the status of the fault's evolution can be achieved using signals easily measured from the electric terminals of the module. A methodology is introduced for electrical isolation of a faulty cell from the healthy cells in a system to prevent further electrical energy feed into the fault. Experimental demonstration is presented supporting the model results.

  4. Parametric System Curves: Correlations Between Fan Pressure Rise and Flow for Large Commercial Buildings

    SciTech Connect (OSTI)

    Sherman, Max; Wray, Craig

    2010-05-19

    A substantial fraction of HVAC energy use in large commercial buildings is due to fan operation. Fan energy use depends in part on the relationship between system pressure drop and flow through the fan, which is commonly called a "system curve." As a step toward enabling better selections of air-handling system components and analyses of common energy efficiency measures such as duct static pressure reset and duct leakage sealing, this paper shows that a simple four-parameter physical model can be used to define system curves. Our model depends on the square of the fan flow, as is commonly considered. It also includes terms that account for linear-like flow resistances such as filters and coils, and for supply duct leakage when damper positions are fixed or are changed independently of static pressure or fan flow. Only two parameters are needed for systems with variable-position supply dampers (e.g., VAV box dampers modulating to control flow). For these systems, reducing or eliminating supply duct leakage does not change the system curve. The parametric system curve may be most useful when applied to field data. Non-linear techniques could be used to fit the curve to fan pressure rise and flow measurements over a range of operating conditions. During design, when measurements are unavailable, one could use duct design calculation tools instead to determine the coefficients.

  5. Amesos2 and Belos: Direct and Iterative Solvers for Large Sparse Linear Systems

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

    Bavier, Eric; Hoemmen, Mark; Rajamanickam, Sivasankaran; Thornquist, Heidi

    2012-01-01

    Solvers for large sparse linear systems come in two categories: direct and iterative. Amesos2, a package in the Trilinos software project, provides direct methods, and Belos, another Trilinos package, provides iterative methods. Amesos2 offers a common interface to many different sparse matrix factorization codes, and can handle any implementation of sparse matrices and vectors, via an easy-to-extend C++ traits interface. It can also factor matrices whose entries have arbitrary “Scalar” type, enabling extended-precision and mixed-precision algorithms. Belos includes many different iterative methods for solving large sparse linear systems and least-squares problems. Unlike competing iterative solver libraries, Belos completely decouples themore »algorithms from the implementations of the underlying linear algebra objects. This lets Belos exploit the latest hardware without changes to the code. Belos favors algorithms that solve higher-level problems, such as multiple simultaneous linear systems and sequences of related linear systems, faster than standard algorithms. The package also supports extended-precision and mixed-precision algorithms. Together, Amesos2 and Belos form a complete suite of sparse linear solvers.« less

  6. Challenges in implementing enterprise resource planning (ERP) system in large organizations : similarities and differences between corporate and university environment

    E-Print Network [OSTI]

    Seo, Goeun

    2013-01-01

    Enterprise resource planning (ERP) system has been one of the most popular business management systems, providing benefits of real-time capabilities and seamless communication for business in large organizations. However, ...

  7. Reverse Computation for Rollback-based Fault Tolerance in Large Parallel Systems

    SciTech Connect (OSTI)

    Perumalla, Kalyan S [ORNL; Park, Alfred J [ORNL

    2013-01-01

    Reverse computation is presented here as an important future direction in addressing the challenge of fault tolerant execution on very large cluster platforms for parallel computing. As the scale of parallel jobs increases, traditional checkpointing approaches suffer scalability problems ranging from computational slowdowns to high congestion at the persistent stores for checkpoints. Reverse computation can overcome such problems and is also better suited for parallel computing on newer architectures with smaller, cheaper or energy-efficient memories and file systems. Initial evidence for the feasibility of reverse computation in large systems is presented with detailed performance data from a particle simulation scaling to 65,536 processor cores and 950 accelerators (GPUs). Reverse computation is observed to deliver very large gains relative to checkpointing schemes when nodes rely on their host processors/memory to tolerate faults at their accelerators. A comparison between reverse computation and checkpointing with measurements such as cache miss ratios, TLB misses and memory usage indicates that reverse computation is hard to ignore as a future alternative to be pursued in emerging architectures.

  8. A Scalable Approach for the Secure and Authorized Tracking of the Availability of Entities in Distributed Systems

    E-Print Network [OSTI]

    , security and authorization 1. Introduction Over the past decade we have witnessed the proliferation

  9. IEEE Transaction on Power Apparatus and Systems, Vol. PAS-103, No. 12, December 1984 EFFICIENT LARGE-SCALE HYDRO SYSTEM SCHEDULING WITH FORCED SPILL CONDITIONS

    E-Print Network [OSTI]

    Gross, George

    LARGE-SCALE HYDRO SYSTEM SCHEDULING WITH FORCED SPILL CONDITIONS Yoshiro Ikura George Gross Systems framework for the formulation and solution of large-scale hydro system scheduling problems (h.s.s.p.). We. INTRODUCTION The efficient utilization of hydro resources is of paramount importance in the planning

  10. Energy Efficiency of large Cryogenic Systems: the LHC Case and Beyond

    E-Print Network [OSTI]

    Claudet, S; Ferlin, G; Lebrun, P; Tavian, L; Wagner, U

    2013-01-01

    Research infrastructures for high-energy and nuclear physics, nuclear fusion and production of high magnetic fields are increasingly based on applied superconductivity and associated cryogenics in their quest for scientific breakthroughs at affordable capital and operation costs, a condition for their acceptance and sustained funding by society. The thermodynamic penalty for operating at low temperature makes energy efficiency a key requirement for their large cryogenic systems, from conceptual design to procurement, construction and operation. Meeting this requirement takes a combined approach on several fronts in parallel: management of heat loads and sizing of cooling duties, distribution of cooling power matching the needs of the superconducting devices, efficient production of refrigeration, optimal control resting on precise instrumentation and diagnostics, as well as a targeted industrial procurement policy. The case of the Large Hadron Collider (LHC) at CERN is presented. Potential improvements for fu...

  11. Earthquake behaviour and large-event predictability in a sheared granular stick-slip system

    E-Print Network [OSTI]

    Dalton, F; Dalton, Fergal; Corcoran, David

    2002-01-01

    We present results from a physical experiment which demonstrates that a sheared granular medium behaves in a manner analogous to earthquake activity. The device consists of an annular plate rotating over a granular medium in a stick-slip fashion. Previous observations by us include a bounded critical state with a power law distribution of event energy consistent with the Gutenberg-Richter law, here we also reveal stair-case seismicity, clustering, foreshocks, aftershocks and seismic quiescence. Subcritical and supercritical regimes have also been observed by us depending on the system configuration. We investigate the predictability of large events. Using the quiescence between `shock' events as an alarm condition, it is found that large events are respectively unpredictable, marginally predictable and highly predictable in the subcritical, critical and supercritical states.

  12. Earthquake behaviour and large-event predictability in a sheared granular stick-slip system

    E-Print Network [OSTI]

    Fergal Dalton; David Corcoran

    2002-11-13

    We present results from a physical experiment which demonstrates that a sheared granular medium behaves in a manner analogous to earthquake activity. The device consists of an annular plate rotating over a granular medium in a stick-slip fashion. Previous observations by us include a bounded critical state with a power law distribution of event energy consistent with the Gutenberg-Richter law, here we also reveal stair-case seismicity, clustering, foreshocks, aftershocks and seismic quiescence. Subcritical and supercritical regimes have also been observed by us depending on the system configuration. We investigate the predictability of large events. Using the quiescence between `shock' events as an alarm condition, it is found that large events are respectively unpredictable, marginally predictable and highly predictable in the subcritical, critical and supercritical states.

  13. A Report on Simulation-Driven Reliability and Failure Analysis of Large-Scale Storage Systems

    SciTech Connect (OSTI)

    Wan, Lipeng; Wang, Feiyi; Oral, H. Sarp; Vazhkudai, Sudharshan S.; Cao, Qing

    2014-11-01

    High-performance computing (HPC) storage systems provide data availability and reliability using various hardware and software fault tolerance techniques. Usually, reliability and availability are calculated at the subsystem or component level using limited metrics such as, mean time to failure (MTTF) or mean time to data loss (MTTDL). This often means settling on simple and disconnected failure models (such as exponential failure rate) to achieve tractable and close-formed solutions. However, such models have been shown to be insufficient in assessing end-to-end storage system reliability and availability. We propose a generic simulation framework aimed at analyzing the reliability and availability of storage systems at scale, and investigating what-if scenarios. The framework is designed for an end-to-end storage system, accommodating the various components and subsystems, their interconnections, failure patterns and propagation, and performs dependency analysis to capture a wide-range of failure cases. We evaluate the framework against a large-scale storage system that is in production and analyze its failure projections toward and beyond the end of lifecycle. We also examine the potential operational impact by studying how different types of components affect the overall system reliability and availability, and present the preliminary results

  14. Final Report: Large-Scale Optimization for Bayesian Inference in Complex Systems

    SciTech Connect (OSTI)

    Ghattas, Omar

    2013-10-15

    The SAGUARO (Scalable Algorithms for Groundwater Uncertainty Analysis and Robust Optimiza- tion) Project focuses on the development of scalable numerical algorithms for large-scale Bayesian inversion in complex systems that capitalize on advances in large-scale simulation-based optimiza- tion and inversion methods. Our research is directed in three complementary areas: efficient approximations of the Hessian operator, reductions in complexity of forward simulations via stochastic spectral approximations and model reduction, and employing large-scale optimization concepts to accelerate sampling. Our efforts are integrated in the context of a challenging testbed problem that considers subsurface reacting flow and transport. The MIT component of the SAGUARO Project addresses the intractability of conventional sampling methods for large-scale statistical inverse problems by devising reduced-order models that are faithful to the full-order model over a wide range of parameter values; sampling then employs the reduced model rather than the full model, resulting in very large computational savings. Results indicate little effect on the computed posterior distribution. On the other hand, in the Texas-Georgia Tech component of the project, we retain the full-order model, but exploit inverse problem structure (adjoint-based gradients and partial Hessian information of the parameter-to- observation map) to implicitly extract lower dimensional information on the posterior distribution; this greatly speeds up sampling methods, so that fewer sampling points are needed. We can think of these two approaches as "reduce then sample" and "sample then reduce." In fact, these two approaches are complementary, and can be used in conjunction with each other. Moreover, they both exploit deterministic inverse problem structure, in the form of adjoint-based gradient and Hessian information of the underlying parameter-to-observation map, to achieve their speedups.

  15. Large Hybrid Energy Systems for Making Low CO2 Load-Following Power and Synthetic Fuel

    SciTech Connect (OSTI)

    Robert S. Cherry; Richard D. Boardman; Steven Aumeier

    2012-02-01

    Hybrid energy systems using nuclear heat sources can economically produce load-following electrical power by exploiting the surplus generation capacity available at night or seasonally to make synthetic fuel. Vehicle fuel is the only current energy use large enough to absorb all the energy capacity that might be diverted from the power industry, and its ease of storage obviates problems with discontinuous synfuel production. The potential benefits and challenges of synfuels integration are illustrated by the production of methanol from natural gas (as a source of carbon) using steam from a light water nuclear power reactor which is assumed to be available in accord with a year's worth of power demand data. Methanol's synthesis process is easily adapted to using 300 C heat from a light water reactor and this simple compound can be further processed into gasoline, biodiesel, or dimethyl ether, fuels which can be used with the current vehicle fleet. A supplemental feed to the methanol process of natural gas (for energy) allows operation at constant full rate when the nuclear heat is being used to produce electrical power. The higher capital costs of such a system are offset by a lower cost of heat and power production from a large base load type of plant and by reduced costs associated with much lower CO2 emissions. Other less tangible economic benefits of this and similar hybrid systems include better use of natural resource for fuels and greater energy services security from the domestic production of vehicle fuel.

  16. Duct leakage impacts on VAV system performance in California large commercial buildings

    SciTech Connect (OSTI)

    Wray, Craig P.; Matson, Nance E.

    2003-10-01

    The purpose of this study is to evaluate the variability of duct leakage impacts on air distribution system performance for typical large commercial buildings in California. Specifically, a hybrid DOE-2/TRNSYS sequential simulation approach was used to model the energy use of a low-pressure terminal-reheat variable-air-volume (VAV) HVAC system with six duct leakage configurations (tight to leaky) in nine prototypical large office buildings (representing three construction eras in three California climates where these types of buildings are common). Combined fan power for the variable-speed-controlled supply and return fans at design conditions was assumed to be 0.8 W/cfm. Based on our analyses of the 54 simulation cases, the increase in annual fan energy is estimated to be 40 to 50% for a system with a total leakage of 19% at design conditions compared to a tight system with 5% leakage. Annual cooling plant energy also increases by about 7 to 10%, but reheat energy decreases (about 3 to 10%). In combination, the increase in total annual HVAC site energy is 2 to 14%. The total HVAC site energy use includes supply and return fan electricity consumption, chiller and cooling tower electricity consumption, boiler electricity consumption, and boiler natural gas consumption. Using year 2000 average commercial sector energy prices for California ($0.0986/kWh and $7.71/Million Btu), the energy increases result in 9 to 18% ($7,400 to $9,500) increases in HVAC system annual operating costs. Normalized by duct surface area, the increases in annual operating costs are 0.14 to 0.18 $/ft{sup 2}. Using a suggested one-time duct sealing cost of $0.20 per square foot of duct surface area, these results indicate that sealing leaky ducts in VAV systems has a simple payback period of about 1.3 years. Even with total leakage rates as low as 10%, duct sealing is still cost effective. This suggests that duct sealing should be considered at least for VAV systems with 10% or more total duct leakage. The VAV system that we simulated had perfectly insulated ducts, and maintained constant static pressure in the ducts upstream of the VAV boxes and a constant supply air temperature at the airhandler. Further evaluations of duct leakage impacts should be carried out in the future after methodologies are developed to deal with duct surface heat transfer effects, to deal with airflows entering VAV boxes from ceiling return plenums (e.g., to model parallel fan-powered VAV boxes), and to deal with static pressure reset and supply air temperature reset strategies.

  17. Work Authorization System

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'S FUTURE.Energy Wind PowerRegina Rameika WomenWood and Pellet12.1A

  18. Processing large sensor data sets for safeguards : the knowledge generation system.

    SciTech Connect (OSTI)

    Thomas, Maikel A.; Smartt, Heidi Anne; Matthews, Robert F.

    2012-04-01

    Modern nuclear facilities, such as reprocessing plants, present inspectors with significant challenges due in part to the sheer amount of equipment that must be safeguarded. The Sandia-developed and patented Knowledge Generation system was designed to automatically analyze large amounts of safeguards data to identify anomalous events of interest by comparing sensor readings with those expected from a process of interest and operator declarations. This paper describes a demonstration of the Knowledge Generation system using simulated accountability tank sensor data to represent part of a reprocessing plant. The demonstration indicated that Knowledge Generation has the potential to address several problems critical to the future of safeguards. It could be extended to facilitate remote inspections and trigger random inspections. Knowledge Generation could analyze data to establish trust hierarchies, to facilitate safeguards use of operator-owned sensors.

  19. Exergy Analysis of the Cryogenic Helium Distribution System for the Large Hadron Collider (LHC)

    E-Print Network [OSTI]

    Claudet, S; Tavian, L; Wagner, U; 10.1063/1.3422294

    2010-01-01

    The Large Hadron Collider (LHC) at CERN features the world’s largest helium cryogenic system, spreading over the 26.7 km circumference of the superconducting accelerator. With a total equivalent capacity of 145 kW at 4.5 K including 18 kW at 1.8 K, the LHC refrigerators produce an unprecedented exergetic load, which must be distributed efficiently to the magnets in the tunnel over the 3.3 km length of each of the eight independent sectors of the machine. We recall the main features of the LHC cryogenic helium distribution system at different temperature levels and present its exergy analysis, thus enabling to qualify second-principle efficiency and identify main remaining sources of irreversibility..

  20. Conceptual Framework and Levels of Abstraction for a Complex Large-Scale System

    SciTech Connect (OSTI)

    Simpson, Mary J.

    2005-03-23

    A conceptual framework and levels of abstraction are created to apply across all potential threats. Bioterrorism is used as a complex example to describe the general framework. Bioterrorism is unlimited with respect to the use of a specific agent, mode of dissemination, and potential target. Because the threat is open-ended, there is a strong need for a common, systemic understanding of attack scenarios related to bioterrorism. In recognition of this large-scale complex problem, systems are being created to define, design and use the proper level of abstraction and conceptual framework in bioterrorism. The wide variety of biological agents and delivery mechanisms provide an opportunity for dynamic scale changes by the linking or interlinking of existing threat components. Concurrent impacts must be separated and evaluated in terms of a given environment and/or ‘abstraction framework.’

  1. Large Parabolic Dish collectors with small gas-turbine, Stirling engine or photovoltaic power conversion systems

    SciTech Connect (OSTI)

    Gehlisch, K.; Heikal, H.; Mobarak, A.; Simon, M.

    1982-08-01

    A comparison for different solar thermal power plants is presented and demonstrates that the large parabolic dish in association with a gas turbine or a Sterling engine could be a competitive system design in the net power range of 50-1000KW. The important advantages of the Large Parabolic Dish concept compared to the Farm and Tower concept are discussed: concentration ratios up to 5000 and uniform heat flux distribution throughout the day which allow very high receiver temperatures and therefor high receiver efficiency to operate effectively Stirling motors or small gas turbines in the mentioned power range with an overall efficiency of 20 to 30%. The high focal plane concentration leads to the efficient use of ceramic materials for receivers of the next generation, applicable in temperature ranges up to 1,300 /sup 0/C for energy converters. Besides the production of electricity, the system can supply process heat in the temperature range of 100 to 400 /sup 0/C as waste heat from the gas turbo converter and heat at temperature levels from 500 to 900 /sup 0/C (1300 /sup 0/C) directly out of the receiver.

  2. Charge transfer and in-cloud structure of large-charge-moment positive lightning strokes in a mesoscale convective system

    E-Print Network [OSTI]

    Cummer, Steven A.

    in a mesoscale convective system Gaopeng Lu,1 Steven A. Cummer,1 Jingbo Li,1 Feng Han,1 Richard J. Blakeslee,2 positive cloud-to-ground (+CG) strokes in a mesoscale convective system. Although no high altitude images of large-charge-moment positive lightning strokes in a mesoscale convective system, Geophys. Res. Lett., 36

  3. JOB SUMMARY JOB TITLE: RESEARCH FELLOW (Multi-Agent Systems for Large-Scale Evolving SCADA (Research Fellows

    E-Print Network [OSTI]

    Liu, Weiru

    JOB SUMMARY JOB TITLE: RESEARCH FELLOW (Multi-Agent Systems for Large-Scale Evolving SCADA, the research topics include: (i) developing multi-agent system architecture for supporting SCADA systems-agent environments and integrating planning knowledge; (iii) investigating security vulnerabilities in MAS for SCADA

  4. Multi-Agent Based Federated Control of Large-Scale Systems with Application to Ship Roll Control

    E-Print Network [OSTI]

    Eustice, Ryan

    Multi-Agent Based Federated Control of Large-Scale Systems with Application to Ship Roll Control of many interconnected local systems. Conventional centralized control schemes are not suitable, a multi-agent based federated control system is composed of local autonomous subsystems (agent

  5. Matrix Algebra for GPU and Multicore Architectures (MAGMA) for Large Petascale Systems

    SciTech Connect (OSTI)

    Dongarra, Jack J. [University Distinguished Professor; Tomov, Stanimire [Research Scientist

    2014-03-24

    The goal of the MAGMA project is to create a new generation of linear algebra libraries that achieve the fastest possible time to an accurate solution on hybrid Multicore+GPU-based systems, using all the processing power that future high-end systems can make available within given energy constraints. Our efforts at the University of Tennessee achieved the goals set in all of the five areas identified in the proposal: 1. Communication optimal algorithms; 2. Autotuning for GPU and hybrid processors; 3. Scheduling and memory management techniques for heterogeneity and scale; 4. Fault tolerance and robustness for large scale systems; 5. Building energy efficiency into software foundations. The University of Tennessee’s main contributions, as proposed, were the research and software development of new algorithms for hybrid multi/many-core CPUs and GPUs, as related to two-sided factorizations and complete eigenproblem solvers, hybrid BLAS, and energy efficiency for dense, as well as sparse, operations. Furthermore, as proposed, we investigated and experimented with various techniques targeting the five main areas outlined.

  6. Thermal Performance Evaluation of Attic Radiant Barrier Systems Using the Large Scale Climate Simulator (LSCS)

    SciTech Connect (OSTI)

    Shrestha, Som S [ORNL] [ORNL; Miller, William A [ORNL] [ORNL; Desjarlais, Andre Omer [ORNL] [ORNL

    2013-01-01

    Application of radiant barriers and low-emittance surface coatings in residential building attics can significantly reduce conditioning loads from heat flow through attic floors. The roofing industry has been developing and using various radiant barrier systems and low-emittance surface coatings to increase energy efficiency in buildings; however, minimal data are available that quantifies the effectiveness of these technologies. This study evaluates performance of various attic radiant barrier systems under simulated summer daytime conditions and nighttime or low solar gain daytime winter conditions using the large scale climate simulator (LSCS). The four attic configurations that were evaluated are 1) no radiant barrier (control), 2) perforated low-e foil laminated oriented strand board (OSB) deck, 3) low-e foil stapled on rafters, and 4) liquid applied low-emittance coating on roof deck and rafters. All test attics used nominal RUS 13 h-ft2- F/Btu (RSI 2.29 m2-K/W) fiberglass batt insulation on attic floor. Results indicate that the three systems with radiant barriers had heat flows through the attic floor during summer daytime condition that were 33%, 50%, and 19% lower than the control, respectively.

  7. Multimedia Authoring III: Web Authoring

    E-Print Network [OSTI]

    Dahlquist, Kam D.

    Multimedia Authoring III: Web Authoring · Many multimedia applications today have a Web manifestation, whether it is the application itself or something about the application, like a DVD info Web site · The Web can "wrap" other types of content as well: Flash, audio, video · The Web provides technologies

  8. Comments by the American Electric Power System on Proposed Coordination of Federal Authorizations for Electric Transmission Facilities

    Office of Energy Efficiency and Renewable Energy (EERE)

     Proposed Coordination of Federal Authorizations for Electric Transmission Facilities – Interim Final Rule and Proposed Rule (DOE, 10 CR Part 900): The utility operating companies of the American...

  9. Reduced Order Modeling for Prediction and Control of Large-Scale Systems.

    SciTech Connect (OSTI)

    Kalashnikova, Irina; Arunajatesan, Srinivasan; Barone, Matthew Franklin; van Bloemen Waanders, Bart Gustaaf; Fike, Jeffrey A.

    2014-05-01

    This report describes work performed from June 2012 through May 2014 as a part of a Sandia Early Career Laboratory Directed Research and Development (LDRD) project led by the first author. The objective of the project is to investigate methods for building stable and efficient proper orthogonal decomposition (POD)/Galerkin reduced order models (ROMs): models derived from a sequence of high-fidelity simulations but having a much lower computational cost. Since they are, by construction, small and fast, ROMs can enable real-time simulations of complex systems for onthe- spot analysis, control and decision-making in the presence of uncertainty. Of particular interest to Sandia is the use of ROMs for the quantification of the compressible captive-carry environment, simulated for the design and qualification of nuclear weapons systems. It is an unfortunate reality that many ROM techniques are computationally intractable or lack an a priori stability guarantee for compressible flows. For this reason, this LDRD project focuses on the development of techniques for building provably stable projection-based ROMs. Model reduction approaches based on continuous as well as discrete projection are considered. In the first part of this report, an approach for building energy-stable Galerkin ROMs for linear hyperbolic or incompletely parabolic systems of partial differential equations (PDEs) using continuous projection is developed. The key idea is to apply a transformation induced by the Lyapunov function for the system, and to build the ROM in the transformed variables. It is shown that, for many PDE systems including the linearized compressible Euler and linearized compressible Navier-Stokes equations, the desired transformation is induced by a special inner product, termed the “symmetry inner product”. Attention is then turned to nonlinear conservation laws. A new transformation and corresponding energy-based inner product for the full nonlinear compressible Navier-Stokes equations is derived, and it is demonstrated that if a Galerkin ROM is constructed in this inner product, the ROM system energy will be bounded in a way that is consistent with the behavior of the exact solution to these PDEs, i.e., the ROM will be energy-stable. The viability of the linear as well as nonlinear continuous projection model reduction approaches developed as a part of this project is evaluated on several test cases, including the cavity configuration of interest in the targeted application area. In the second part of this report, some POD/Galerkin approaches for building stable ROMs using discrete projection are explored. It is shown that, for generic linear time-invariant (LTI) systems, a discrete counterpart of the continuous symmetry inner product is a weighted L2 inner product obtained by solving a Lyapunov equation. This inner product was first proposed by Rowley et al., and is termed herein the “Lyapunov inner product“. Comparisons between the symmetry inner product and the Lyapunov inner product are made, and the performance of ROMs constructed using these inner products is evaluated on several benchmark test cases. Also in the second part of this report, a new ROM stabilization approach, termed “ROM stabilization via optimization-based eigenvalue reassignment“, is developed for generic LTI systems. At the heart of this method is a constrained nonlinear least-squares optimization problem that is formulated and solved numerically to ensure accuracy of the stabilized ROM. Numerical studies reveal that the optimization problem is computationally inexpensive to solve, and that the new stabilization approach delivers ROMs that are stable as well as accurate. Summaries of “lessons learned“ and perspectives for future work motivated by this LDRD project are provided at the end of each of the two main chapters.

  10. Building a Large Scale Climate Data System in Support of HPC Environment

    SciTech Connect (OSTI)

    Wang, Feiyi [ORNL] [ORNL; Harney, John F [ORNL] [ORNL; Shipman, Galen M [ORNL] [ORNL

    2011-01-01

    The Earth System Grid Federation (ESG) is a large scale, multi-institutional, interdisciplinary project that aims to provide climate scientists and impact policy makers worldwide a web-based and client-based platform to publish, disseminate, compare and analyze ever increasing climate related data. This paper describes our practical experiences on the design, development and operation of such a system. In particular, we focus on the support of the data lifecycle from a high performance computing (HPC) perspective that is critical to the end-to-end scientific discovery process. We discuss three subjects that interconnect the consumer and producer of scientific datasets: (1) the motivations, complexities and solutions of deep storage access and sharing in a tightly controlled environment; (2) the importance of scalable and flexible data publication/population; and (3) high performance indexing and search of data with geospatial properties. These perceived corner issues collectively contributed to the overall user experience and proved to be as important as any other architectural design considerations. Although the requirements and challenges are rooted and discussed from a climate science domain context, we believe the architectural problems, ideas and solutions discussed in this paper are generally useful and applicable in a larger scope.

  11. A Design and Implementation of Immersive Virtual Space Authoring System Jeongdan Choi, Chansu Lee, Kwangman Oh, Chanjong Park

    E-Print Network [OSTI]

    Lee, Chan-Su

    software modules, 3D authoring software modules and VR I/O devices such as CyberGlove and HMD. We also house. Also, many authors who want to create the virtual space need more and more convenient interface of a number of commands for object loading, object placement, property specification and animation

  12. An Operational Energy Consumption Evaluation Index System for Large Public Buildings 

    E-Print Network [OSTI]

    Li, Y.; Zhang, J.; Sun, D.

    2006-01-01

    Large public buildings have been the emphasis of energy conservation in China. In this paper, the design and operational energy consumption evaluation indices for large public buildings are generalized, their differences and deficiencies...

  13. This thesis applies model order reduction (MOR) techniques to large modern power systems that preserve particular dynamic characteristics of the original system. Depending upon the nature of the

    E-Print Network [OSTI]

    Kumar, M. Jagadesh

    in power systems have been explored and compared ­ Balanced truncation (BT) and Krylov subspace between the wind velocity/system frequency and the power output. These linear models, validated using DigABSTRACT This thesis applies model order reduction (MOR) techniques to large modern power systems

  14. Mining for Statistical Models of Availability in Large-Scale Distributed Systems: An Empirical Study of SETI@home

    E-Print Network [OSTI]

    Kondo, Derrick

    Mining for Statistical Models of Availability in Large-Scale Distributed Systems: An Empirical, these systems are composed of heterogeneous hosts whose individual availability often exhibit different an effective method for discovering subsets of hosts whose availability have similar statistical properties

  15. The! Community! Earth! System! Model! (CESM)! Large! Ensemble! Project:! A! Community!3! Resource!for!Studying!Climate!Change!in!the!Presence!of!Internal!Climate!Variability!4!

    E-Print Network [OSTI]

    Kay, Jennifer

    !1! !2! The! Community! Earth! System! Model! (CESM)! Large! Ensemble! Project:! A! Community!3!Earth!System!Model!(CESM)!community!designed!the!CESM!Large!Ensemble!39! (CESMWLE)!with!the!explicit

  16. Activation process in excitable systems with multiple noise sources: Large number of units

    E-Print Network [OSTI]

    Igor Franovi?; Matjaž Perc; Kristina Todorovi?; Srdjan Kosti?; Nikola Buri?

    2015-07-12

    We study the activation process in large assemblies of type II excitable units whose dynamics is influenced by two independent noise terms. The mean-field approach is applied to explicitly demonstrate that the assembly of excitable units can itself exhibit macroscopic excitable behavior. In order to facilitate the comparison between the excitable dynamics of a single unit and an assembly, we introduce three distinct formulations of the assembly activation event. Each formulation treats different aspects of the relevant phenomena, including the threshold-like behavior and the role of coherence of individual spikes. Statistical properties of the assembly activation process, such as the mean time-to-first pulse and the associated coefficient of variation, are found to be qualitatively analogous for all three formulations, as well as to resemble the results for a single unit. These analogies are shown to derive from the fact that global variables undergo stochastic bifurcation from the stochastically stable fixed point to continuous oscillations. Local activation processes are analyzed in light of competition between the noise-led and the relaxation-driven dynamics. We also briefly report on a system-size anti-resonant effect displayed by the mean time-to-first pulse.

  17. The Optical System for the Large Size Telescope of the Cherenkov Telescope Array

    E-Print Network [OSTI]

    Hayashida, M; Teshima, M; de Almeida, U Barres; Chikawa, M; Cho, N; Fukami, S; Gadola, A; Hanabata, Y; Horns, D; Jablonski, C; Katagiri, H; Kagaya, M; Ogino, M; Okumura, A; Saito, T; Stadler, R; Steiner, S; Straumann, U; Vollhardt, A; Wetteskind, H; Yamamoto, T; Yoshida, T

    2015-01-01

    The Large Size Telescope (LST) of the Cherenkov Telescope Array (CTA) is designed to achieve a threshold energy of 20 GeV. The LST optics is composed of one parabolic primary mirror 23 m in diameter and 28 m focal length. The reflector dish is segmented in 198 hexagonal, 1.51 m flat to flat mirrors. The total effective reflective area, taking into account the shadow of the mechanical structure, is about 368 m$^2$. The mirrors have a sandwich structure consisting of a glass sheet of 2.7 mm thickness, aluminum honeycomb of 60 mm thickness, and another glass sheet on the rear, and have a total weight about 47 kg. The mirror surface is produced using a sputtering deposition technique to apply a 5-layer coating, and the mirrors reach a reflectivity of $\\sim$94% at peak. The mirror facets are actively aligned during operations by an active mirror control system, using actuators, CMOS cameras and a reference laser. Each mirror facet carries a CMOS camera, which measures the position of the light spot of the optical ...

  18. Development of the large neutron imaging system for inertial confinement fusion experiments

    SciTech Connect (OSTI)

    Caillaud, T.; Landoas, O.; Briat, M.; Kime, S.; Rosse, B.; Thfoin, I.; Bourgade, J. L.; Disdier, L.; Glebov, V. Yu.; Marshall, F. J.; Sangster, T. C.

    2012-03-15

    Inertial confinement fusion (ICF) requires a high resolution ({approx}10 {mu}m) neutron imaging system to observe deuterium and tritium (DT) core implosion asymmetries. A new large (150 mm entrance diameter: scaled for Laser MegaJoule [P. A. Holstein, F. Chaland, C. Charpin, J. M. Dufour, H. Dumont, J. Giorla, L. Hallo, S. Laffite, G. Malinie, Y. Saillard, G. Schurtz, M. Vandenboomgaerde, and F. Wagon, Laser and Particle Beams 17, 403 (1999)]) neutron imaging detector has been developed for such ICF experiments. The detector has been fully characterized using a linear accelerator and a {sup 60}Co {gamma}-ray source. A penumbral aperture was used to observe DT-gas-filled target implosions performed on the OMEGA laser facility. [T. R. Boehly, D. L. Brown, R. S. Craxton, R. L. Keck, J. P. Knauer, J. H. Kelly, T. J. Kessler, S. A. Kumpan, S. J. Loucks, S. A. Letzring, F. J. Marshall, R. L. McCrory, S. F. B. Morse, W. Seka, J. M. Soures, and C. P. Verdon, Opt. Commun. 133, 495 (1997)] Neutron core images of 14 MeV with a resolution of 15 {mu}m were obtained and are compared to x-ray images of comparable resolution.

  19. GeneaQuilts: A System for Exploring Large Genealogies Anastasia Bezerianos, Pierre Dragicevic, Jean-Daniel Fekete, Member, IEEE,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    GeneaQuilts: A System for Exploring Large Genealogies Anastasia Bezerianos, Pierre Dragicevic, Jean F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F Fig. 1. The genealogy of Greek--GeneaQuilts is a new visualization technique for representing large genealogies of up to several thousand individuals

  20. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    E-Print Network [OSTI]

    Howison, Mark

    2010-01-01

    W. , and Childs, H. (2010) MPI-hybrid parallelism for volumeHybrid Parallelism for Volume Rendering on Large, Multi-corecharacteristics of “hybrid” parallel program- ming and

  1. Hybrid Parallelism for Volume Rendering on Large, Multi-core Systems

    E-Print Network [OSTI]

    Howison, Mark

    2010-01-01

    Hybrid Parallelism for Volume Rendering on Large, Multi-corendings indicate that the hybrid-parallel implementation, atpassing against a “hybrid” parallel im- plementation, which

  2. Workload-Driven Design and Evaluation of Large-Scale Data-Centric Systems

    E-Print Network [OSTI]

    Chen, Yanpei

    2012-01-01

    classification in self-* storage systems. In ICAC 2004. [93]what people use network storage systems for, i.e. , the filefor enter- prise storage systems via multi-dimensional trace

  3. Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion

    E-Print Network [OSTI]

    Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge to the Joint Economic Committee of the US Senate, domestic air traffic delays in 2007 cost airlines over $19

  4. Effect of Large Disturbances on the Local Behavior of Nonlinear Physically Interconnected Systems

    E-Print Network [OSTI]

    Hirche, Sandra

    ]: International Energy Agency, "Empowering variable renewables ­ Options for flexible electricity systems Motivation ­ Sensitivity in electric power systems: Subcritical instability & Ill-conditionedness - [2

  5. Author Select

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby a contractor ofvarDOE PAGES11 PPPL-AtmosphericAuthor

  6. Comparison of theoretical and computational characteristics of dimensionality reduction methods for large-scale uncertain systems

    E-Print Network [OSTI]

    -time algorithms for computing reduced dimension models for uncertain systems. Here we present algorithms that compute lower dimensional realizations of an uncertain system, and compare their theoretical and com of the computational di- culties in handling more realistic systems. The uncertain system representation

  7. FROM DYNAMIC TO STATIC LARGE DEVIATIONS IN BOUNDARY DRIVEN EXCLUSION PARTICLE SYSTEMS

    E-Print Network [OSTI]

    developments on the non­equilibrium stationary measures by Derrida, Lebowitz and Speer [4] and the more closely, Derrida, Lebowitz and Speer [4] obtained the explicit form of the rate function for the large deviation

  8. Achieving large stable vertical displacement in surface-micromachined microelectromechanical systems (MEMS)

    E-Print Network [OSTI]

    Deutsch, Erik R. (Erik Robertson), 1974-

    2002-01-01

    This thesis describes electrostatic actuation techniques and mechanical design features for realizing large planar analog vertical travel in an electrostatically actuated diffractive mid-infrared optical device, which is ...

  9. Unit selection in a concatenative speech synthesis system using a large speech database 

    E-Print Network [OSTI]

    Hunt, Andrew; Black, Alan W

    One approach to the generation of natural-sounding synthesized speech waveforms is to select and concatenate units from a large speech database. Units (in the current work, phonemes) are selected to produce a natural ...

  10. Power-Saving in Large-Scale Storage Systems with Data Migration Koji Hasebe, Tatsuya Niwa, Akiyoshi Sugiki, and Kazuhiko Kato

    E-Print Network [OSTI]

    Banbara, Mutsunori

    Power-Saving in Large-Scale Storage Systems with Data Migration Koji Hasebe, Tatsuya Niwa, Akiyoshi,kato}@cs.tsukuba.ac.jp Abstract--We present a power-saving method for large- scale distributed storage systems. The key idea. In particular, as a high percentage of the total computing system's energy is used by the data storage systems

  11. Optimal electricity system planning in a large hydro jurisdiction: Will British Columbia soon become a major importer of electricity?

    E-Print Network [OSTI]

    Pedersen, Tom

    or part of 14 western states in the USA and a small portion of North Mexico. Electricity trade withinOptimal electricity system planning in a large hydro jurisdiction: Will British Columbia soon become a major importer of electricity? Behdad Kiani a,b,n , Andrew Rowe a , Peter Wild a , Lawrence Pitt

  12. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 29, NO. 1, JANUARY 2014 489 Large-Scale Integration of Deferrable

    E-Print Network [OSTI]

    Oren, Shmuel S.

    of Deferrable Demand and Renewable Energy Sources Anthony Papavasiliou, Student Member, IEEE, and Shmuel S. Oren of the large-scale integration of renewable energy sources and deferrable demand in power systems in terms and the coupling of renewable resources with deferrable loads. We motivate coupling as an alternative

  13. Advancing Large Scale Many-Body QMC Simulations on GPU accelerated Multicore Systems

    E-Print Network [OSTI]

    California at Davis, University of

    and superconductors. It treats these interactions exactly, but the solution of a system of N electrons must

  14. WIRELESS HELIOSTAT AND CONTROL SYSTEM FOR LARGE SELF-POWERED HELIOSTAT FIELDS

    E-Print Network [OSTI]

    Turau, Volker

    by CIEMAT at the Plataforma Solar de Almerìa, Spain [2]. Further development on similar systems was done

  15. Aalborg Universitet Transient Stability Assessment of Power System with Large Amount of Wind Power

    E-Print Network [OSTI]

    Bak, Claus Leth

    the transient stability. In Denmark, the onshore and offshore wind farms are connected to distribution system and transmission system respectively. The control and protection methodologies of onshore and offshore wind farms definitely affect the transient stability of power system. In this paper, the onshore and offshore wind farms

  16. SANE: Semantic-Aware Namespace in Ultra-Large-Scale File Systems

    E-Print Network [OSTI]

    Zhu, Yifeng

    and efficiency of data access. In almost all today's file systems, the namespace management is based-tree based metadata management scheme used in almost all file systems today [4]. The most important functions exposed the following weaknesses. Weakness 1: Limited system scalability. The directory-based management

  17. Reliability of Beam Loss Monitor Systems for the Large Hadron Collider

    SciTech Connect (OSTI)

    Guaglio, G.; Dehning, B.; Santoni, C.

    2005-06-08

    The increase of beam energy and beam intensity, together with the use of super conducting magnets, opens new failure scenarios and brings new criticalities for the whole accelerator protection system. For the LHC beam loss protection system, the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems, which contribute to the final SIL value, are the dump system, the interlock system, the beam loss monitors system, and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particles losses at 7 TeV and assisted by the Fast Beam Current Decay Monitors at 450 GeV. At medium and higher loss time it is assisted by other systems, such as the quench protection system and the cryogenic system. For BLMS, hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS, using temperature and radiation damage experimental data as well as using standard databases. All the data has been processed by reliability software (Isograph). The analysis spaces from the components data to the system configuration.

  18. Distributed stability tests for large-scale systems with limited model information

    E-Print Network [OSTI]

    Ulbrich, Michael

    . While the design of distributed control laws has received a lot of attention, the distributed analysis) within the Priority Program SPP 1305 "Control Theory of Digitally Networked Dynamical Systems-scale interconnected systems have attracted a lot of research recently in the field of system and control theory

  19. Reliability of Beam Loss Monitor Systems for the Large Hadron Collider

    E-Print Network [OSTI]

    Guaglio, Gianluca; Santoni, C

    2005-01-01

    The increase of beam energy and beam intensity, together with the use of super conducting magnets, opens new failure scenarios and brings new criticalities for the whole accelerator protection system. For the LHC beam loss protection system, the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems, which contribute to the final SIL value, are the dump system, the interlock system, the beam loss monitors system, and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particles losses at 7 TeV and assisted by the Fast Beam Current Decay Monitors at 450 GeV. At medium and higher loss time it is assisted by other systems, such as the quench protection system and the cryogenic system. For BLMS, hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data...

  20. LARGE SCALE GRAZING SYSTEMS IN THE NORDIC REGION: THEIR HISTORY, CHARACTERISTICS AND STABILITY

    E-Print Network [OSTI]

    Oksanen, Lauri

    , the increased meat price and demand for furs lead to overhunting of wild reindeer, which in turn allowed-based sheep and cattle husbandry or large-scale reindeer nomadism, which now extended even to the marine populations of reindeer, sheep and cattle, and the use of wood as fuel by herdsmen, vast expanses of mountain

  1. Report of the Workshop on Petascale Systems Integration for Large Scale Facilities

    E-Print Network [OSTI]

    2007-01-01

    including software development, acceptance testing and riskIt can be used for testing new software releases, doingof regression testing after upgrades to system software or

  2. Computer Control for IGBT Based Heat Load System with Rapid Response and Large Heat Flux

    E-Print Network [OSTI]

    Li, Yangmin

    system. So it can acquire the satisfactory performance, what is more, the heat load system combined heat flux within very short time, but it needs a very complicated welding power supply, and meantime, heating coils, etc. There are three power amplifiers: linear amplifier, on-off amplifier, and pulse width

  3. Development of the Roll type Incremental Micro Pattern Imprint System for Large Area Pattern Replication

    E-Print Network [OSTI]

    Boyer, Edmond

    were conducted to evaluate the system feasibility and process parameters effect, such as flat mold available polycarbonate sheets were used for tests and results showed that the developed R2F system: Flexible Display, Roll-to-Flat Thermal Imprint, Micro Pattern Replication, Polycarbonate 1 Introduction

  4. Hybrid Parallelism for Volume Rendering on Large, Multi- and Many-core Systems

    SciTech Connect (OSTI)

    Howison, Mark; Bethel, E. Wes; Childs, Hank

    2011-01-01

    With the computing industry trending towards multi- and many-core processors, we study how a standard visualization algorithm, ray-casting volume rendering, can benefit from a hybrid parallelism approach. Hybrid parallelism provides the best of both worlds: using distributed-memory parallelism across a large numbers of nodes increases available FLOPs and memory, while exploiting shared-memory parallelism among the cores within each node ensures that each node performs its portion of the larger calculation as efficiently as possible. We demonstrate results from weak and strong scaling studies, at levels of concurrency ranging up to 216,000, and with datasets as large as 12.2 trillion cells. The greatest benefit from hybrid parallelism lies in the communication portion of the algorithm, the dominant cost at higher levels of concurrency. We show that reducing the number of participants with a hybrid approach significantly improves performance.

  5. Large scale participatory futures systems : a comparative study of online scenario planning approaches

    E-Print Network [OSTI]

    Raford, Noah (Noah A.)

    2011-01-01

    This dissertation explores the role that participatory online collective intelligence systems might play in urban planning research. Specifically, it examines methodological and practical issues raised by the design and ...

  6. Development of Energy Consumption Database Management System of Existing Large Public Buildings 

    E-Print Network [OSTI]

    Li, Y.; Zhang, J.; Sun, D.

    2006-01-01

    The statistic data of energy consumption are the base of analyzing energy consumption. The scientific management method of energy consumption data and the development of database management system plays an important role in building energy...

  7. Rule Based Energy Management and Reporting System (EMRS) Applied to a Large Utility Power Station Complex 

    E-Print Network [OSTI]

    Bamber, D.; Childress, R.; Robinson, J.

    2004-01-01

    Deregulation of electricity and rising fuel costs are causing renewed interest in Energy Management Systems (EMS) to service both the utility and private sectors. This paper details a case study of the successful integration of a new class of rule...

  8. Impacts of large quantities of wind energy on the electric power system

    E-Print Network [OSTI]

    Yao, Yuan, S.M. Massachusetts Institute of Technology

    2011-01-01

    Wind energy has been surging on a global scale. Significant penetration of wind energy is expected to take place in the power system, bringing new challenges because of the variability and uncertainty of this renewable ...

  9. Clippee: A Large-Scale Client/Peer System Keno Albrecht, Ruedi Arnold, Roger Wattenhofer

    E-Print Network [OSTI]

    of this client/peer architecture. Clippee employs a data replication scheme based on an optimistic use of locks to blindly trust everything in the Internet. Moreover, peer-to-peer systems are no egalitarian utopia

  10. Implementation of an Integrated Energy Information System in a Large University Campus 

    E-Print Network [OSTI]

    McBride, J. R.; Schuster, L.; Rickey, D.

    2003-01-01

    This paper describes the design, installation and implementation of an integrated energy information system at the central plant, auxiliary utility plants, and selected buildings at the University of New Mexico in Albuquerque. The Comprehensive...

  11. Organizational Evaluation and Authority 

    E-Print Network [OSTI]

    Scott, Richard W.; Dornbusch, Sanford M.; Busching, Bruce C.; Laing, James D.

    2015-07-21

    condition for internal pressures for change in the authority system--in short, for instability of the system. Both conception and theory are limited in scope to organizations which fulfill these conditions: 1) Organizational sanctions are distributed..., at least in part, on the basis of evaluations made of participants. 2) Evaluators who influence the distribution of organizational sanctions attempt to base their evaluations, at least in part, on the performance of organizational tasks by participants...

  12. Impacts of Large-Scale Wind Generators Penetration on the Voltage Stability of Power Systems

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    on the operation of existing transmission network . The European Wind Energy Association (EWEA) projects 230 GW closer to their limits, using flexible AC transmission system devices (FACTS), and also due- rently interconnected into the existing transmission network of 220kV voltage level with higher installed

  13. Wireless Ventilation Control for Large-Scale Systems: the Mining Industrial Case

    E-Print Network [OSTI]

    Boyer, Edmond

    minimization thanks to a continuous operation of the fans. The second one, based on a hybrid description strategies for fluid systems (pumps, fans and compressors) represent approximately 20 % of the total % or more of the energy consumed by the mining process may go into the ventilation (including heating

  14. A reliability and availability sensitivity study of a large photovoltaic system.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Granata, Jennifer E.; Mundt, Michael Joseph; Miller, Steven P.; Quintana, Michael A.; Collins, Elmer W.; Sorensen, Neil Robert

    2010-08-01

    A reliability and availability model has been developed for a portion of the 4.6 megawatt (MWdc) photovoltaic system operated by Tucson Electric Power (TEP) at Springerville, Arizona using a commercially available software tool, GoldSim{trademark}. This reliability model has been populated with life distributions and repair distributions derived from data accumulated during five years of operation of this system. This reliability and availability model was incorporated into another model that simulated daily and seasonal solar irradiance and photovoltaic module performance. The resulting combined model allows prediction of kilowatt hour (kWh) energy output of the system based on availability of components of the system, solar irradiance, and module and inverter performance. This model was then used to study the sensitivity of energy output as a function of photovoltaic (PV) module degradation at different rates and the effect of location (solar irradiance). Plots of cumulative energy output versus time for a 30 year period are provided for each of these cases.

  15. SmartScan: Efficient Metadata Crawl for Storage Management Metadata Querying in Large File Systems

    E-Print Network [OSTI]

    Scan on production file systems show that exploiting metadata change patterns can reduce the time needed to refresh and companies of the PDL Consortium (including APC, EMC, Facebook, Google, Hewlett-Packard, Hitachi, IBM, Intel management, charge-back, and provisioning decisions. Unlike desktop search, which is designed to assist users

  16. Combined Heat and Power System Achieves Millions in Cost Savings at Large University - Case Study

    SciTech Connect (OSTI)

    2013-05-29

    Texas A&M University is operating a high-efficiency combined heat and power (CHP) system at its district energy campus in College Station, Texas. Texas A&M received $10 million in U.S. Department of Energy funding from the American Recovery and Reinvestment Act (ARRA) of 2009 for this project. Private-sector cost share totaled $40 million.

  17. DESIGN OF A LARGE RANGE XY NANOPOSITIONING SYSTEM Shorya Awtar* and Gaurav Parmar

    E-Print Network [OSTI]

    Awtar, Shorya

    , and potentially infinite life. However, the main limitation of flexure bearings has been their small range physical components (bearing, actuators, and sensors) and their integration, particularly in the case to approximately 100µm per axis. This paper presents a novel physical system layout, comprising a bearing

  18. Duct leakage impacts on VAV system performance in California large commercial buildings

    E-Print Network [OSTI]

    Wray, Craig P.; Matson, Nance E.

    2003-01-01

    the energy cost and value of California’s electricity in twocosts using year 2000 average commercial sector energy prices for California:California ($0.0986/kWh and $7.71/Million Btu), the energy increases result in HVAC system annual operating cost

  19. Installation and commissioning of a large area coating system for neutron and X-ray optical devices

    SciTech Connect (OSTI)

    Biswas, A. Haque, Sk. Maidul Misal, J. Sampathkumar, R.; Ajaykumar,; Bhattacharyya, D.; Sahoo, N. K.; Lagoo, K. D.; Veerapur, R. D.; Padmanabhan, M.; Puri, R. K.; Bhattacharya, Debarati

    2014-04-24

    A 9 meter long DC/RF sputtering cylindrical coating system which is designed and built indigenously for coating of neutron supermirrors and grazing incidence hard X-ray mirrors on large area substrates has been installed and commissioned recently. The performance of the system has been tested by depositing Ti films on glass substrate of 1500mm X 150mm size. By depositing Ti films on several small area c-Si substrates placed over the length and breadth of the substrate holder, and by subsequent characterization by GIXR measurement, it has been observed that films with bulk-like density and very low surface roughness can be obtained in the above system. The thickness uniformity achieved in the deposited films is within ±3.5% over the 1500mm length and within ±4.8% over the 150mm width.

  20. Large angle solid state position sensitive x-ray detector system

    DOE Patents [OSTI]

    Kurtz, David S. (State College, PA); Ruud, Clay O. (State College, PA)

    1998-01-01

    A method and apparatus for x-ray measurement of certain properties of a solid material. In distinction to known methods and apparatus, this invention employs a specific fiber-optic bundle configuration, termed a reorganizer, itself known for other uses, for coherently transmitting visible light originating from the scintillation of diffracted x-radiation from the solid material gathered along a substantially one dimensional linear arc, to a two-dimensional photo-sensor array. The two-dimensional photodetector array, with its many closely packed light sensitive pixels, is employed to process the information contained in the diffracted radiation and present the information in the form of a conventional x-ray diffraction spectrum. By this arrangement, the angular range of the combined detector faces may be increased without loss of angular resolution. Further, the prohibitively expensive coupling together of a large number of individual linear diode photodetectors, which would be required to process signals generated by the diffracted radiation, is avoided.

  1. Large angle solid state position sensitive x-ray detector system

    DOE Patents [OSTI]

    Kurtz, D.S.; Ruud, C.O.

    1998-07-21

    A method and apparatus are disclosed for x-ray measurement of certain properties of a solid material. In distinction to known methods and apparatus, this invention employs a specific fiber-optic bundle configuration, termed a reorganizer, itself known for other uses, for coherently transmitting visible light originating from the scintillation of diffracted x-radiation from the solid material gathered along a substantially one dimensional linear arc, to a two-dimensional photo-sensor array. The two-dimensional photodetector array, with its many closely packed light sensitive pixels, is employed to process the information contained in the diffracted radiation and present the information in the form of a conventional x-ray diffraction spectrum. By this arrangement, the angular range of the combined detector faces may be increased without loss of angular resolution. Further, the prohibitively expensive coupling together of a large number of individual linear diode photodetectors, which would be required to process signals generated by the diffracted radiation, is avoided. 7 figs.

  2. Large angle solid state position sensitive x-ray detector system

    DOE Patents [OSTI]

    Kurtz, D.S.; Ruud, C.O.

    1998-03-03

    A method and apparatus for x-ray measurement of certain properties of a solid material are disclosed. In distinction to known methods and apparatus, this invention employs a specific fiber-optic bundle configuration, termed a reorganizer, itself known for other uses, for coherently transmitting visible light originating from the scintillation of diffracted x-radiation from the solid material gathered along a substantially one dimensional linear arc, to a two-dimensional photo-sensor array. The two-dimensional photodetector array, with its many closely packed light sensitive pixels, is employed to process the information contained in the diffracted radiation and present the information in the form of a conventional x-ray diffraction spectrum. By this arrangement, the angular range of the combined detector faces may be increased without loss of angular resolution. Further, the prohibitively expensive coupling together of a large number of individual linear diode photodetectors, which would be required to process signals generated by the diffracted radiation, is avoided. 7 figs.

  3. Pulsar J0453+1559: A Double Neutron Star System with a Large Mass Asymmetry

    E-Print Network [OSTI]

    Martinez, J G; Freire, P C C; Deneva, J S; Jenet, F A; McLaughlin, M A; Bagchi, M; Bates, S D; Ridolfi, A

    2015-01-01

    To understand the nature of supernovae and neutron star (NS) formation, as well as binary stellar evolution and their interactions, it is important to probe the distribution of NS masses. Until now, all double NS (DNS) systems have been measured to have a mass ratio close to unity (q $\\geq$ 0.91). Here we report the measurement of the individual masses of the 4.07-day binary pulsar J0453+1559 from measurements of the rate of advance of periastron and Shapiro delay: The mass of the pulsar is 1.559(5) $M_{\\odot}$ and that of its companion is 1.174(4) $M_{\\odot}$; q = 0.75. If this companion is also a neutron star (NS), as indicated by the orbital eccentricity of the system (e=0.11), then its mass is the smallest precisely measured for any such object. The pulsar has a spin period of 45.7 ms and a spin derivative of 1.8616(7) x$10^-19$; from these we derive a characteristic age of ~ 4.1 x $10^9$ years and a magnetic field of ~ 2.9 x $10^9$ G,i.e, this pulsar was mildly recycled by accretion of matter from the pr...

  4. Chronology and dynamics of a large silicic magmatic system. Central Taupo volcanic zone, New Zealand

    SciTech Connect (OSTI)

    Houghton, B.F.; Wilson, C.J.N. (Wairakei Research Center, Taupo (New Zealand)); McWilliams, M.O. (Stanford Univ., CA (United States)); Lanphere, M.A.; Pringle, M.S. (Geological Survey, Menlo Park, CA (United States)); Weaver, S.D. (Univ. of Canterbury, Christchurch (New Zealand)); Briggs, R.M. (Univ. of Waikato, Hamilton (New Zealand))

    1995-01-01

    The central Taupo Volcanic Zone in New Zealand is a region of intense Quaternary silicic volcanism accompanying rapid extension of continental crust. At least 34 caldera-forming ignimbrite eruptions have produced a complex sequence of relatively short-lived, nested, and/or overlapping volcanic centers over 1.6 m.y. Silicic volcanism at Taupo is similar to the Yellowstone system in size, longevity, thermal flux, and magma output rate. However, Taupo contrasts with Yellowstone in the exceptionally high frequency, but small size, of caldera-forming eruptions. This contrast reflects the thin, rifted nature of the crust, which precludes the development of long-term magmatic cycles at Taupo. 11 refs., 4 figs., 1 tab.

  5. High resolution mass spectrometry method and system for analysis of whole proteins and other large molecules

    DOE Patents [OSTI]

    Reilly, Peter T. A. (Knoxville, TN) [Knoxville, TN; Harris, William A. (Naperville, IL) [Naperville, IL

    2010-03-02

    A matrix assisted laser desorption/ionization (MALDI) method and related system for analyzing high molecular weight analytes includes the steps of providing at least one matrix-containing particle inside an ion trap, wherein at least one high molecular weight analyte molecule is provided within the matrix-containing particle, and MALDI on the high molecular weight particle while within the ion trap. A laser power used for ionization is sufficient to completely vaporize the particle and form at least one high molecular weight analyte ion, but is low enough to avoid fragmenting the high molecular weight analyte ion. The high molecular weight analyte ion is extracted out from the ion trap, and is then analyzed using a detector. The detector is preferably a pyrolyzing and ionizing detector.

  6. EFFECTS OF OXYGEN AND AIR MIXING ON VOID FRACTIONS IN A LARGE SCALE SYSTEM

    SciTech Connect (OSTI)

    Leishear, R; Hector Guerrero, H; Michael Restivo, M

    2008-09-11

    Oxygen and air mixing with spargers was performed in a 30 foot tall by 30 inch diameter column, to investigate mass transfer as air sparged up through the column and removed saturated oxygen from solution. The mixing techniques required to support this research are the focus of this paper. The fluids tested included water, water with an antifoam agent (AFA), and a high, solids content, Bingham plastic, nuclear waste simulant with AFA, referred to as AZ01 simulant, which is non-radioactive. Mixing of fluids in the column was performed using a recirculation system and an air sparger. The re-circulation system consisted of the column, a re-circulating pump, and associated piping. The air sparger was fabricated from a two inch diameter pipe concentrically installed in the column and open near the bottom of the column. The column contents were slowly re-circulated while fluids were mixed with the air sparger. Samples were rheologically tested to ensure effective mixing, as required. Once the fluids were adequately mixed, oxygen was homogeneously added through the re-circulation loop using a sintered metal oxygen sparger followed by a static mixer. Then the air sparger was re-actuated to remove oxygen from solution as air bubbled up through solution. To monitor mixing effectiveness several variables were monitored, which included flow rates, oxygen concentration, differential pressures along the column height, fluid levels, and void fractions, which are defined as the percent of dissolved gas divided by the total volume of gas and liquid. Research showed that mixing was uniform for water and water with AFA, but mixing for the AZ101 fluid was far more complex. Although mixing of AZ101 was uniform throughout most of the column, gas entrapment and settling of solids significantly affected test results. The detailed test results presented here provide some insight into the complexities of mixing and void fractions for different fluids and how the mixing process itself affects void fractions in Bingham plastic fluids, which have a measurable yield stress.

  7. Impacts of Large Amounts of Wind Power on Design and Operation of Power Systems; Results of IEA Collaboration

    SciTech Connect (OSTI)

    Parsons, B. and Ela, E.; Holttinen, H.; Meibom, P.; Orths, A.; O'Malley, M.; Ummels, B.C.; Tande, J.

    2008-06-01

    There are a multitude of studies completed and ongoing related to the cost of wind integration. However, the results are not easy to compare. An international forum for exchange of knowledge of power system impacts of wind power has been formed under the IEA Implementing Agreement on Wind Energy. IEA WIND R&D Task 25 on “Design and Operation of Power Systems with Large Amounts of Wind Power” produced a state-of-the-art report in October 2007, where the most relevant wind-power grid integration studies were analyzed, especially regarding methodologies and input data. This paper summarizes the results from 18 case studies, with discussion on differences in methodology as well as issues that have been identified to impact the cost of wind integration.

  8. Analysis of large scale tests for AP-600 passive containment cooling system

    SciTech Connect (OSTI)

    Sha, W.T.; Chien, T.H.; Sun, J.G.; Chao, B.T.

    1997-07-01

    One unique feature of the AP-600 is its passive containment cooling system (PCCS), which is designed to maintain containment pressure below the design limit for 72 hours without action by the reactor operator. During a design-basis accident, i.e., either a loss-of-coolant or a main steam-line break accident, steam escapes and comes in contact with the much cooler containment vessel wall. Heat is transferred to the inside surface of the steel containment wall by convection and condensation of steam and through the containment steel wall by conduction. Heat is then transferred from the outside of the containment surface by heating and evaporation of a thin liquid film that is formed by applying water at the top of the containment vessel dome. Air in the annual space is heated by both convection and injection of steam from the evaporating liquid film. The heated air and vapor rise as a result of natural circulation and exit the shield building through the outlets above the containment shell. All of the analytical models that are developed for and used in the COMMIX-ID code for predicting performance of the PCCS will be described. These models cover governing conservation equations for multicomponents single phase flow, transport equations for the {kappa}-{epsilon} two-equation turbulence model, auxiliary equations, liquid-film tracking model for both inside (condensate) and outside (evaporating liquid film) surfaces of the containment vessel wall, thermal coupling between flow domains inside and outside the containment vessel, and heat and mass transfer models. Various key parameters of the COMMIX-ID results and corresponding AP-600 PCCS experimental data are compared and the agreement is good. Significant findings from this study are summarized.

  9. QSO ABSORPTION SYSTEMS DETECTED IN Ne VIII: HIGH-METALLICITY CLOUDS WITH A LARGE EFFECTIVE CROSS SECTION

    SciTech Connect (OSTI)

    Meiring, J. D.; Tripp, T. M. [Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States)] [Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States); Werk, J. K.; Prochaska, J. X. [University of California Observatories-Lick Observatory, UC Santa Cruz, CA 95064 (United States)] [University of California Observatories-Lick Observatory, UC Santa Cruz, CA 95064 (United States); Howk, J. C. [Department of Physics, University of Notre Dame, 225 Nieuwland Science Hall, Notre Dame, IN 46556 (United States)] [Department of Physics, University of Notre Dame, 225 Nieuwland Science Hall, Notre Dame, IN 46556 (United States); Jenkins, E. B. [Princeton University Observatory, Peyton Hall, Ivy Lane, Princeton, NJ 08544 (United States)] [Princeton University Observatory, Peyton Hall, Ivy Lane, Princeton, NJ 08544 (United States); Lehner, N.; Sembach, K. R. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)] [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

    2013-04-10

    Using high-resolution, high signal-to-noise ultraviolet spectra of the z{sub em} = 0.9754 quasar PG1148+549 obtained with the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope, we study the physical conditions and abundances of Ne VIII+O VI absorption line systems at z{sub abs} = 0.68381, 0.70152, 0.72478. In addition to Ne VIII and O VI, absorption lines from multiple ionization stages of oxygen (O II, O III, O IV) are detected and are well aligned with the more highly ionized species. We show that these absorbers are multiphase systems including hot gas (T Almost-Equal-To 10{sup 5.7} K) that produces Ne VIII and O VI, and the gas metallicity of the cool phase ranges from Z = 0.3 Z{sub Sun} to supersolar. The cool ( Almost-Equal-To 10{sup 4} K) phases have densities n{sub H} Almost-Equal-To 10{sup -4} cm{sup -3} and small sizes (<4 kpc); these cool clouds are likely to expand and dissipate, and the Ne VIII may be within a transition layer between the cool gas and a surrounding, much hotter medium. The Ne VIII redshift density, dN/dz{approx}7{sup +7}{sub -3}, requires a large number of these clouds for every L > 0.1 L* galaxy and a large effective absorption cross section ({approx}> 100 kpc), and indeed, we find a star-forming {approx}L {sup *} galaxy at the redshift of the z{sub abs} = 0.72478 system, at an impact parameter of 217 kpc. Multiphase absorbers like these Ne VIII systems are likely to be an important reservoir of baryons and metals in the circumgalactic media of galaxies.

  10. Oregon Underground Injection Control Program Authorized Injection...

    Open Energy Info (EERE)

    Systems Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Oregon Underground Injection Control Program Authorized Injection Systems Webpage...

  11. Architecting the System of Systems Enterprise: Enabling Constructs and Methods from the Field of Engineering Systems

    E-Print Network [OSTI]

    Rhodes, Donna H.

    Engineering systems is a field of scholarship focused on developing fundamental theories and methods to address the challenges of large-scale complex systems in context of their socio-technical environments. The authors ...

  12. Yakama Nation Housing Authority, Adams View: System Retrofit Research Report and Case Study Summary; 23 February 2004--15 January 2005

    SciTech Connect (OSTI)

    CARB

    2005-11-01

    The Yakama Nation is the largest tribe in the Pacific Northwest. The Yakama Nation Housing Authority (YNHA) is working to rehabilitate single family homes (two to four bedrooms) in its Adams View project using public and tax credit financing. It is in need of a major rehabilitation as a result of wear and tear after many years of use and overcrowding. The scope for the current CARB ''gut rehab'' project is 25 of the 40 homes in the Adams View development, but the proposed strategies could be replicated for the remaining 15 homes as well as for several other similar developments of the YNHA. On a larger scale, the system rehabilitation strategy developed for the Adam's View project should be replicable for most of the more than 4,300 housing units that were constructed in the Northwest (Washington, Oregon, and Idaho) under the US Department of Housing and Urban Development (HUD) Housing Act of 1937.

  13. Cost-efficient monitoring of water quality in district heating systems This article examines the monitoring strategy for water quality in a large Danish district

    E-Print Network [OSTI]

    Cost-efficient monitoring of water quality in district heating systems This article examines the monitoring strategy for water quality in a large Danish district heating system ­ and makes a proposal for a technical and economic improvement. Monitoring of water quality in district heating systems is necessary

  14. HIGH-TEMPERATURE ELECTROLYSIS FOR LARGE-SCALE HYDROGEN AND SYNGAS PRODUCTION FROM NUCLEAR ENERGY – SYSTEM SIMULATION AND ECONOMICS

    SciTech Connect (OSTI)

    J. E. O'Brien; M. G. McKellar; E. A. Harvego; C. M. Stoots

    2009-05-01

    A research and development program is under way at the Idaho National Laboratory (INL) to assess the technological and scale-up issues associated with the implementation of solid-oxide electrolysis cell technology for efficient high-temperature hydrogen production from steam. This work is supported by the US Department of Energy, Office of Nuclear Energy, under the Nuclear Hydrogen Initiative. This paper will provide an overview of large-scale system modeling results and economic analyses that have been completed to date. System analysis results have been obtained using the commercial code UniSim, augmented with a custom high-temperature electrolyzer module. Economic analysis results were based on the DOE H2A analysis methodology. The process flow diagrams for the system simulations include an advanced nuclear reactor as a source of high-temperature process heat, a power cycle and a coupled steam electrolysis loop. Several reactor types and power cycles have been considered, over a range of reactor outlet temperatures. Pure steam electrolysis for hydrogen production as well as coelectrolysis for syngas production from steam/carbon dioxide mixtures have both been considered. In addition, the feasibility of coupling the high-temperature electrolysis process to biomass and coal-based synthetic fuels production has been considered. These simulations demonstrate that the addition of supplementary nuclear hydrogen to synthetic fuels production from any carbon source minimizes emissions of carbon dioxide during the production process.

  15. Integration and the performance of large-scale health enterprises : field studies of psychological health delivery systems in the U.S. Military

    E-Print Network [OSTI]

    Kamin, Cody M. (Cody Meyer)

    2012-01-01

    Large-scale health enterprises comprise multiple organizations that provide programs and services for patients. Despite the interconnectedness of these systems there is a lack of empirical research documenting how these ...

  16. Practical recipes for the model order reduction, dynamical simulation, and compressive sampling of large-scale open quantum systems

    E-Print Network [OSTI]

    John A. Sidles; Joseph L. Garbini; Lee E. Harrell; Alfred O. Hero; Jonathan P. Jacky; Joseph R. Malcomb; Anthony G. Norman; Austin M. Williamson

    2008-05-13

    This article presents numerical recipes for simulating high-temperature and non-equilibrium quantum spin systems that are continuously measured and controlled. The notion of a spin system is broadly conceived, in order to encompass macroscopic test masses as the limiting case of large-j spins. The simulation technique has three stages: first the deliberate introduction of noise into the simulation, then the conversion of that noise into an equivalent continuous measurement and control process, and finally, projection of the trajectory onto a state-space manifold having reduced dimensionality and possessing a Kahler potential of multi-linear form. The resulting simulation formalism is used to construct a positive P-representation for the thermal density matrix. Single-spin detection by magnetic resonance force microscopy (MRFM) is simulated, and the data statistics are shown to be those of a random telegraph signal with additive white noise. Larger-scale spin-dust models are simulated, having no spatial symmetry and no spatial ordering; the high-fidelity projection of numerically computed quantum trajectories onto low-dimensionality Kahler state-space manifolds is demonstrated. The reconstruction of quantum trajectories from sparse random projections is demonstrated, the onset of Donoho-Stodden breakdown at the Candes-Tao sparsity limit is observed, a deterministic construction for sampling matrices is given, and methods for quantum state optimization by Dantzig selection are given.

  17. Flexible Visual Authoring Using Operation History

    E-Print Network [OSTI]

    Su, Sara

    Flexible Visual Authoring Using Operation History Sara Su Massachusetts Institute of Technology l Revisiting history Storing and retrieving state Hierarchical authoring Grouping, structure, selections #12;Operations and selections today Uses of history System activity logs, instrumentation (not our focus

  18. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 19, NO. 2, FEBRUARY 2011 305 Area-Efficient Scalable MAP Processor Design

    E-Print Network [OSTI]

    Wu, An-Yeu "Andy"

    with an energy efficiency of 0.19 nJ/bit and an area efficiency of 3.13 bits/mm2. For the multistandard systemsIEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 19, NO. 2, FEBRUARY 2011 305, such as worldwide interoperability for microwave access (WiMAX) [4]. Table I lists the detailed specifications

  19. Logical Attestation: An Authorization Architecture for Trustworthy Computing

    E-Print Network [OSTI]

    Sirer, Emin Gun

    system. Key words: simulation, interactive storytelling, story authoring 1 Introduction Storytelling

  20. Job Salary Prediction Anonymous Author(s)

    E-Print Network [OSTI]

    Freitas, Nando de

    050 051 052 053 Job Salary Prediction Anonymous Author(s) Affiliation Address email Abstract Kaggle based classifieds company, hosted a Kaggle competition with the goal of improving job salary pre- dictions for job postings in which the salary does not appear. Using various lin- ear models, random

  1. Effects of volcanism, crustal thickness, and large-scale faulting on the He isotope signatures of geothermal systems in Chile

    E-Print Network [OSTI]

    Morata, Dobson, P.F., B.M. Kennedy, M. Reich, P. Sanchez, and D.

    2014-01-01

    of the Cordon Caulle geothermal system, southern Chile,?volcanic centers and geothermal systems in the CVZ wereHelium isotopes in geothermal systems: Iceland, The Geysers,

  2. Large scale simulations of the mechanical properties of layered transition metal ternary compounds for fossil energy power system applications

    SciTech Connect (OSTI)

    Ching, Wai-Yim

    2014-12-31

    Advanced materials with applications in extreme conditions such as high temperature, high pressure, and corrosive environments play a critical role in the development of new technologies to significantly improve the performance of different types of power plants. Materials that are currently employed in fossil energy conversion systems are typically the Ni-based alloys and stainless steels that have already reached their ultimate performance limits. Incremental improvements are unlikely to meet the more stringent requirements aimed at increased efficiency and reduce risks while addressing environmental concerns and keeping costs low. Computational studies can lead the way in the search for novel materials or for significant improvements in existing materials that can meet such requirements. Detailed computational studies with sufficient predictive power can provide an atomistic level understanding of the key characteristics that lead to desirable properties. This project focuses on the comprehensive study of a new class of materials called MAX phases, or Mn+1AXn (M = a transition metal, A = Al or other group III, IV, and V elements, X = C or N). The MAX phases are layered transition metal carbides or nitrides with a rare combination of metallic and ceramic properties. Due to their unique structural arrangements and special types of bonding, these thermodynamically stable alloys possess some of the most outstanding properties. We used a genomic approach in screening a large number of potential MAX phases and established a database for 665 viable MAX compounds on the structure, mechanical and electronic properties and investigated the correlations between them. This database if then used as a tool for materials informatics for further exploration of this class of intermetallic compounds.

  3. Co-gasification of municipal solid waste and material recovery in a large-scale gasification and melting system

    SciTech Connect (OSTI)

    Tanigaki, Nobuhiro; Manako, Kazutaka; Osada, Morihiro

    2012-04-15

    Highlights: Black-Right-Pointing-Pointer This study evaluates the effects of co-gasification of MSW with MSW bottom ash. Black-Right-Pointing-Pointer No significant difference between MSW treatment with and without MSW bottom ash. Black-Right-Pointing-Pointer PCDD/DFs yields are significantly low because of the high carbon conversion ratio. Black-Right-Pointing-Pointer Slag quality is significantly stable and slag contains few hazardous heavy metals. Black-Right-Pointing-Pointer The final landfill amount is reduced and materials are recovered by DMS process. - Abstract: This study evaluates the effects of co-gasification of municipal solid waste with and without the municipal solid waste bottom ash using two large-scale commercial operation plants. From the viewpoint of operation data, there is no significant difference between municipal solid waste treatment with and without the bottom ash. The carbon conversion ratios are as high as 91.7% and 95.3%, respectively and this leads to significantly low PCDD/DFs yields via complete syngas combustion. The gross power generation efficiencies are 18.9% with the bottom ash and 23.0% without municipal solid waste bottom ash, respectively. The effects of the equivalence ratio are also evaluated. With the equivalence ratio increasing, carbon monoxide concentration is decreased, and carbon dioxide and the syngas temperature (top gas temperature) are increased. The carbon conversion ratio is also increased. These tendencies are seen in both modes. Co-gasification using the gasification and melting system (Direct Melting System) has a possibility to recover materials effectively. More than 90% of chlorine is distributed in fly ash. Low-boiling-point heavy metals, such as lead and zinc, are distributed in fly ash at rates of 95.2% and 92.0%, respectively. Most of high-boiling-point heavy metals, such as iron and copper, are distributed in metal. It is also clarified that slag is stable and contains few harmful heavy metals such as lead. Compared with the conventional waste management framework, 85% of the final landfill amount reduction is achieved by co-gasification of municipal solid waste with bottom ash and incombustible residues. These results indicate that the combined production of slag with co-gasification of municipal solid waste with the bottom ash constitutes an ideal approach to environmental conservation and resource recycling.

  4. 4918 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 28, NO. 4, NOVEMBER 2013 Towards Faster Solution of Large

    E-Print Network [OSTI]

    Vuik, Kees

    energy from dis- tant areas, and to enable the coupling of power markets. This increased interconnection is with the Power Systems and Markets Department, Ecofys Germany GmbH and with the Electrical Power Systems in the management of the power system. In the light of this system transformation, new computational algorithms

  5. Implementation and testing of a fault detection software tool for improving control system performance in a large commercial building

    E-Print Network [OSTI]

    Salsbury, T.I.

    2011-01-01

    of the chillers • Valve leakage in the heating coil •due to a large leakage through the valve. The second alarme.g. , leakage through a control valve. A prolonged setpoint

  6. Low spring index, large displacement Shape Memory Alloy (SMA) coil actuators for use in macro- and micro-systems

    E-Print Network [OSTI]

    Newman, Dava

    Shape memory alloys (SMA) offer unique shape changing characteristics that can be exploited to produce low­ mass, low-bulk, large-stroke actuators. We are investigating the use of low spring index (defined as the ratio of ...

  7. Agile project dynamics : a strategic project management approach to the study of large-scale software development using system dynamics

    E-Print Network [OSTI]

    Glaiel, Firas (Firas S.)

    2012-01-01

    Large-scale software engineering organizations have traditionally used plan-driven, heavyweight, waterfall-style approaches for the planning, execution, and monitoring of software development efforts. This approach often ...

  8. Using a Constant Volume Displacement Ventilation System to Create a Micro Climate in a Large Airport Terminal in Bangkok 

    E-Print Network [OSTI]

    Simmonds, P.; Gaw, W.

    1996-01-01

    In order to conserve energy and create a comfortable climate for both passengers and workers at a new large international airport in Thailand, a design concept was created where only the first 2m above the occupied zone is conditioned...

  9. 112 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 20, NO. 1, JANUARY 2012 A Novel Technique for Improving Hardware Trojan

    E-Print Network [OSTI]

    Plusquellic, James

    about tampering with inserting hardware Trojans in an integrated circuit supply chain in recent years in integrated circuit (IC) market due to eco- nomical profit, with limiting the control of customer over IC112 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 20, NO. 1, JANUARY 2012

  10. 432 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 16, NO. 4, APRIL 2008 Adaptive Cooling of Integrated Circuits

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    432 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 16, NO. 4, APRIL 2008 Adaptive Cooling of Integrated Circuits Using Digital Microfluidics Philip Y. Paik, Vamsee K. Pamula physical stress that further reduces reliability. While a number of chip cooling techniques have been

  11. Recycling Authorizations: Toward Secondary and Approximate Authorizations Model

    E-Print Network [OSTI]

    of matching best suitable approximate authorizations. 1 Introduction Although, every authorization decision

  12. Discussion on the Energy-Saving Potential of a Hybrid System in a Large Space Building in Different Areas 

    E-Print Network [OSTI]

    Liu, S.; Huang, C.

    2006-01-01

    The use of a hybrid ventilation system is promoted to decrease the annual energy consumption of air conditioning. The switch-point of temperature, which is related with weather conditions, is presented to control the hybrid system properly...

  13. Position: Postdoctoral Researcher Large-Scale Earth System Science Visualization Salary: $31,044 -$35,000

    E-Print Network [OSTI]

    Zender, Charles

    ,044 - $35,000 Starting Date: February 2004 The Cal-(IT)2 Center of Gravity and the Earth System Modeling, enabling the real-time visualization and steering of Earth system model simulations. Particular application

  14. Research project on CO2 geological storage and groundwaterresources: Large-scale hydrological evaluation and modeling of impact ongroundwater systems

    SciTech Connect (OSTI)

    Birkholzer, Jens; Zhou, Quanlin; Rutqvist, Jonny; Jordan,Preston; Zhang,K.; Tsang, Chin-Fu

    2007-10-24

    If carbon dioxide capture and storage (CCS) technologies areimplemented on a large scale, the amounts of CO2 injected and sequesteredunderground could be extremely large. The stored CO2 then replaces largevolumes of native brine, which can cause considerable pressureperturbation and brine migration in the deep saline formations. Ifhydraulically communicating, either directly via updipping formations orthrough interlayer pathways such as faults or imperfect seals, theseperturbations may impact shallow groundwater or even surface waterresources used for domestic or commercial water supply. Possibleenvironmental concerns include changes in pressure and water table,changes in discharge and recharge zones, as well as changes in waterquality. In compartmentalized formations, issues related to large-scalepressure buildup and brine displacement may also cause storage capacityproblems, because significant pressure buildup can be produced. Toaddress these issues, a three-year research project was initiated inOctober 2006, the first part of which is summarized in this annualreport.

  15. Author's personal copy People, oceans and scale: governance, livelihoods and climate

    E-Print Network [OSTI]

    Charles, Anthony

    Author's personal copy People, oceans and scale: governance, livelihoods and climate change­ecological systems perspective. Several key themes are examined: governance and decision-making, livelihoods and well scales, from the local to the global. While much attention in the literature lies on global and large

  16. 3524 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 28, NO. 4, NOVEMBER 2013 Modeling and Solution of the Large-Scale

    E-Print Network [OSTI]

    Fu, Yong

    of the Large-Scale Security-Constrained Unit Commitment Yong Fu, Senior Member, IEEE, Zuyi Li, Senior Member, IEEE, and Lei Wu, Member, IEEE Abstract--Security-constrained unit commitment (SCUC), as one of key problem (unit commitment) and subproblems (network security evaluations). In industrial applications, both

  17. Automating Climate Science: Large Ensemble Simulations on the TeraGrid with the GriPhyN Virtual Data System

    E-Print Network [OSTI]

    Deelman, Ewa

    Laboratory 2 Computation Institute, Argonne National Laboratory & University of Chicago 3 Center for Climatic hindered the efforts of the climate community to understand climate variability and climate change fromAutomating Climate Science: Large Ensemble Simulations on the TeraGrid with the GriPhyN Virtual

  18. Development of large scale production of Nd-doped phosphate glasses for megajoule-scale laser systems

    SciTech Connect (OSTI)

    Ficini, G.; Campbell, J.H.

    1996-05-01

    Nd-doped phosphate glasses are the preferred gain medium for high-peak-power lasers used for Inertial Confinement Fusion research because they have excellent energy storage and extraction characteristics. In addition, these glasses can be manufactured defect-free in large sizes and at relatively low cost. To meet the requirements of the future mega-joule size lasers, advanced laser glass manufacturing methods are being developed that would enable laser glass to be continuously produced at the rate of several thousand large (790 x 440 x 44 mm{sup 3}) plates of glass per year. This represents more than a 10 to 100-fold improvement in the scale of the present manufacturing technology.

  19. Implementation and Testing of a Fault Detection Software Tool for Improving Control System Performance in a Large Commercial Building

    E-Print Network [OSTI]

    Implementation and Testing of a Fault Detection Software Tool for Improving Control System of faults by monitoring the level of these discrepancies. We present results from the first phase of tests

  20. Development of the photomultiplier tube readout system for the first Large-Sized Telescope of the Cherenkov Telescope Array

    E-Print Network [OSTI]

    Masuda, Shu; Barrio, Juan Abel; Bigas, Oscar Blanch; Delgado, Carlos; Coromina, Lluís Freixas; Gunji, Shuichi; Hadasch, Daniela; Hatanaka, Kenichiro; Ikeno, Masahiro; Laguna, Jose Maria Illa; Inome, Yusuke; Ishio, Kazuma; Katagiri, Hideaki; Kubo, Hidetoshi; Martínez, Gustavo; Mazin, Daniel; Nakajima, Daisuke; Nakamori, Takeshi; Ohoka, Hideyuki; Paoletti, Riccardo; Ritt, Stefan; Rugliancich, Andrea; Saito, Takayuki; Sulanke, Karl-Heinz; Takeda, Junki; Tanaka, Manobu; Tanigawa, Shunsuke; Tejedor, Luis Ángel; Teshima, Masahiro; Tsuchiya, Yugo; Uchida, Tomohisa; Yamamoto, Tokonatsu

    2015-01-01

    The Cherenkov Telescope Array (CTA) is the next generation ground-based very high energy gamma-ray observatory. The Large-Sized Telescope (LST) of CTA targets 20 GeV -- 1 TeV gamma rays and has 1855 photomultiplier tubes (PMTs) installed in the focal plane camera. With the 23 m mirror dish, the night sky background (NSB) rate amounts to several hundreds MHz per pixel. In order to record clean images of gamma-ray showers with minimal NSB contamination, a fast sampling of the signal waveform is required so that the signal integration time can be as short as the Cherenkov light flash duration (a few ns). We have developed a readout board which samples waveforms of seven PMTs per board at a GHz rate. Since a GHz FADC has a high power consumption, leading to large heat dissipation, we adopted the analog memory ASIC "DRS4". The sampler has 1024 capacitors per channel and can sample the waveform at a GHz rate. Four channels of a chip are cascaded to obtain deeper sampling depth with 4096 capacitors. After a trigger ...

  1. 266 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 6, NO. 2, JUNE 1998 Power Estimation of Embedded Systems

    E-Print Network [OSTI]

    Silvano, Cristina

    and SW contributions to power in a system-level design flow for control dominated embedded systems. Index in the most recent years. A power-driven methodology is mandatory during embedded systems design to meet accurate and efficient power metrics included in a hardware/software (HW/SW) codesign environment to guide

  2. Assessing Galaxy Limiting Magnitudes in Large Optical Surveys...

    Office of Scientific and Technical Information (OSTI)

    Assessing Galaxy Limiting Magnitudes in Large Optical Surveys Citation Details In-Document Search Title: Assessing Galaxy Limiting Magnitudes in Large Optical Surveys Authors:...

  3. 660 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 8, NO. 6, DECEMBER 2000 Heterogeneous Architecture Models for

    E-Print Network [OSTI]

    Wills, Scott

    Heterogeneous Architecture Models for Interconnect-Motivated System Design Sek Meng Chai, Member, IEEE, Tarek M. Taha, D. Scott Wills, Senior Member, IEEE, and James D. Meindl, Life Fellow, IEEE Abstract in the design process. This paper presents a set of heterogeneous architectural models that combines

  4. A Power Provision and Capping Architecture for Large Scale Systems Yongpeng Liu, Hong Zhu, Kai Lu and Yongyan Liu

    E-Print Network [OSTI]

    Zhu, Hong

    and Yongyan Liu School of Computer Science, National University of Defense Technology, Changsha, P solutions. The experiments demonstrated that the new architecture can ensure power usage safety with only amount of energy. According to the recent TOP500 list of high performance systems [2], the average power

  5. Understanding the Impact of Large-Scale Penetration of Micro Combined Heat & Power Technologies within Energy Systems

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    that has been the primary objective until recent times. In an intensive fossil-fuel energy world-CHP, is an attractive alternative because of the potential for enhancing energy efficiency, reducing GHG emissions within Energy Systems by Karen de los Ángeles Tapia-Ahumada B.S., Civil Industrial Engineering

  6. A Bandwidth-aware Memory-subsystem Resource Management using Non-invasive Resource Profilers for Large CMP Systems

    E-Print Network [OSTI]

    John, Lizy Kurian

    is an important shared resource that contributes significantly to the overall throughput and power consumption policies lead to destruc- tive interference [3], unfairness [15] and eventually lack of Quality such environment the resource sharing problem is extended from the chip-level to the system-level, and there- fore

  7. Software Engineering Software engineering is the branch of systems engineering concerned with the development of large and

    E-Print Network [OSTI]

    Finkelstein, Anthony

    1 of 5 Software Engineering Software engineering is the branch of systems engineering concerned. The professional practice of software engineering is carried out by software engineers, who are qualified by virtue professional body. There are no satisfactory taxonomies of software engineering concerns. Rather there have

  8. Architectural Support for System Software on Large-Scale Clusters Juan Fernandez Eitan Frachtenberg Fabrizio Petrini Kei Davis

    E-Print Network [OSTI]

    Frachtenberg, Eitan

    , the role of the This work is supported by the U.S. Department of Energy through Los Alamos National Computer and Computational Sciences (CCS) Division Los Alamos National Laboratory, Los Alamos, NM 87545 USA include the communication library, the resource manager, the parallel file system, the cluster monitoring

  9. Abstract--As a common tendency, large-scale wind farms are increasingly connected to the transmission system of modern

    E-Print Network [OSTI]

    Chen, Zhe

    include [1, 2]: · Under normal conditions: Frequency and voltage ranges Active power regulation and frequency control Reactive power regulation and voltage control · Under disturbance conditions: Voltage ride regulation. For variable-speed wind turbines which are connected to the power system through power electronic

  10. Wideband current transformers for the surveillance of the beam extraction kicker system of the Large Hadron Collider

    E-Print Network [OSTI]

    Defrance, C; Ducimetière, L; Vossenberg, E

    2007-01-01

    The LHC beam dumping system must protect the LHC machine from damage by reliably and safely extracting and absorbing the circulating beams when requested. Two sets of 15 extraction kicker magnets form the main active part of this system. A separate high voltage pulse generator powers each magnet. Because of the high beam energy and the consequences which could result from significant beam loss due to a malfunctioning of the dump system the magnets and generators are continuously surveyed in order to generate a beam abort as soon as an internal fault is detected. Amongst these surveillance systems, wideband current transformers have been designed to detect any erratic start in one of the generators. Output power should be enough to directly re-trigger all the power trigger units of the remaining 14 generators. The current transformers were developed in collaboration with industry. To minimize losses, high-resistivity cobalt alloy was chosen for the cores. The annealing techniques originally developed for LEP b...

  11. Self-Sustained Oscillation and Dynamical Multistability of Optomechanical Systems in the Extremely-Large-Amplitude Regime

    E-Print Network [OSTI]

    Ming Gao; Fuchuan Lei; Chuanguang Du; Gui Lu Long

    2015-06-18

    Optomechanics concerns with the coupling between optical cavities and mechanical resonators. Most early works are concentrated in the physics of optomechanics in the small-displacement regime and consider one single optical cavity mode participating in the optomechanical coupling. In this paper, we focus on optomechanics in the extremely-large-amplitude regime in which a mechanical resonator is coupled with multiple optical cavity modes during the oscillation. We explicitly show that the mechanical resonator can present self-sustained oscillations in a novel way with limit cycles in the shape of sawtooth-edged ellipses and exhibit dynamical multistability. By analyzing the mechanical oscillation process and the accompanied variation of the optical cavity occupation, we develop an energy-balanced condition to ensure the stability of self-sustained oscillation. The effect of the mechanical nonlinearities on the dynamics of the mechanical resonator is also investigated.

  12. OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY June 30, 2010 #12;OKLAHOMA STATE UNIVERSITY MEDICAL Authority Members Oklahoma State University Medical Authority Tulsa, Oklahoma We have audited the accompanying statements of financial position of the Oklahoma State University Medical Authority (the

  13. OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY June 30, 2009 #12;OKLAHOMA STATE UNIVERSITY MEDICAL Authority Members Oklahoma State University Medical Authority Tulsa, Oklahoma We have audited the accompanying statements of financial position of the Oklahoma State University Medical Authority (the

  14. Stochastic Methods for Planning and Operating Power Systems with Large Amounts of Wind and Solar Power: Preprint

    SciTech Connect (OSTI)

    Milligan, M.; Donohoo, P.; O'Malley, M.

    2012-09-01

    Wind and solar generators differ in their generation characteristics than conventional generators. The variable output and imperfect predictability of these generators face a stochastic approach to plan and operate the power system without fundamentally changing the operation and planning problems. This paper overviews stochastic modeling challenges in operations, generation planning, and transmission planning, with references to current industry and academic work. Different stochastic problem formulations, including approximations, are also discussed.

  15. Benchmark data for a large reprocessing plant for evaluation of advanced data analysis algorithms and safeguards system design

    SciTech Connect (OSTI)

    Burr, T.L.; Coulter, C.A.; Wangen, L.E.

    1998-02-01

    This report describes the simulation and analysis of solution level and density (L,D) in all key main process tanks in a large reprocessing plant. In addition, initial provisions were made to include temperature (T) data in the analysis at a later time. FacSim, a simulation program developed at Los Alamos, was used to generate simulated process operating data for the Rokkasho Reprocessing Plant (RRP) that is now under construction in Japan. Both normal facility operation and more than thirty abrupt diversion scenarios were modeled over 25-day periods of simulated operation beginning with clean startup of the facility. The simulation tracked uranium, plutonium (both +3 and +4 oxidation states), HNO{sub 3} diluent, and tributyl phosphate from the input accountability vessel to the plutonium output accountability vessel, with the status of each process vessel and many pipes recorded at intervals of approximately four minutes. These data were used to determine solution volume and density values in each process vessel as a function of time.

  16. 293 K - 1.9 K supporting systems for the Large Hadron Collider (LHC) cryo-magnets

    E-Print Network [OSTI]

    Mathieu, M; Renaglia, T; Rohmig, P; Williams, L R

    1998-01-01

    The LHC machine will incorporate some 2000 main ring super-conducting magnets cooled at 1.9 K by super-fluid pressurized helium, mainly 15m-long dipoles with their cryostats and 6m-long quadrupoles housed in the Short Straight Section (SSS) units. This paper presents the design of the support system of the LHC arc cryo-magnets between 1.9 K at the cold mass and 293 K at the cryostat vacuum vessel. The stringent positioning precision for magnet alignment and the high thermal performance for cryogenic efficiency are the main conflicting requirements, which have lead to a trade-off design. The systems retained for LHC are based on column-type supports positioned in the vertical plane of the magnets inside the cryostats. An ad-hoc design has been achieved both for cryo-dipoles and SSS. Each column is composed of a main tubular thin-walled structure in composite material (glass-fibre/epoxy resin, for its low thermal conductivity properties), interfaced to both magnet and cryostat via stainless steel flanges. The t...

  17. Canonical symplectic particle-in-cell method for long-term large-scale simulations of the Vlasov-Maxwell system

    E-Print Network [OSTI]

    Qin, Hong; Xiao, Jianyuan; Zhang, Ruili; He, Yang; Wang, Yulei; Burby, Joshua W; Ellison, Leland; Zhou, Yao

    2015-01-01

    Particle-in-Cell (PIC) simulation is the most important numerical tool in plasma physics and accelerator physics. However, its long-term accuracy has not been established. To overcome this difficulty, we developed a canonical symplectic PIC method for the Vlasov-Maxwell system by discretizing the Marsden-Weinstein bracket. A fast local algorithm to solve the symplectic implicit time advance is discovered without root researching or global matrix inversion, enabling applications of the proposed method to very large-scale plasma simulations with many, e.g., $10^{9}$, degrees of freedom.

  18. Large Scale DD Simulation Results for Crystal Plasticity Parameters in Fe-Cr And Fe-Ni Systems

    SciTech Connect (OSTI)

    Zbib, Hussein M.; Li, Dongsheng; Sun, Xin; Khaleel, Mohammad A.

    2012-04-30

    The development of viable nuclear energy source depends on ensuring structural materials integrity. Structural materials in nuclear reactors will operate in harsh radiation conditions coupled with high level hydrogen and helium production, as well as formation of high density of point defects and defect clusters, and thus will experience severe degradation of mechanical properties. Therefore, the main objective of this work is to develop a capability that predicts aging behavior and in-service lifetime of nuclear reactor components and, thus provide an instrumental tool for tailoring materials design and development for application in future nuclear reactor technologies. Towards this end goal, the long term effort is to develop a physically based multiscale modeling hierarchy, validated and verified, to address outstanding questions regarding the effects of irradiation on materials microstructure and mechanical properties during extended service in the fission and fusion environments. The focus of the current investigation is on modern steels for use in nuclear reactors including high strength ferritic-martensitic steels (Fe-Cr-Ni alloys). The effort is to develop a predicative capability for the influence of irradiation on mechanical behavior. Irradiation hardening is related to structural information crossing different length scales, such as composition, dislocation, and crystal orientation distribution. To predict effective hardening, the influence factors along different length scales should be considered. Therefore, a hierarchical upscaling methodology is implemented in this work in which relevant information is passed between models at three scales, namely, from molecular dynamics to dislocation dynamics to dislocation-based crystal plasticity. The molecular dynamics (MD) was used to predict the dislocation mobility in body centered cubic (bcc) Fe and its Ni and Cr alloys. The results are then passed on to dislocation dynamics to predict the critical resolved shear stress (CRSS) from the evolution of local dislocation and defects. In this report the focus is on the results obtained from large scale dislocation dynamics simulations. The effect of defect density, materials structure was investigated, and evolution laws are obtained. These results will form the bases for the development of evolution and hardening laws for a dislocation-based crystal plasticity framework. The hierarchical upscaling method being developed in this project can provide a guidance tool to evaluate performance of structural materials for next-generation nuclear reactors. Combined with other tools developed in the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program, the models developed will have more impact in improving the reliability of current reactors and affordability of new reactors.

  19. Authorized licensed use limited to: Princeton University. Downloaded on May 21, 2009 at 21:44 from IEEE Xplore. Restrictions apply. 24 IEEE CONTROL SYSTEMS MAGAZINE JUNE 2009

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    , airplanes flew faster, higher, and farther each year, spacecraft had yet to explore our solar system, and intuition to design and build airplanes. Analog computers simulated aircraft flight, but digital computers." There were no limits; the aerospace enterprise fo- cused on "expanding the envelope." Today, airplanes have

  20. Characterizing the Habitable Zones of Exoplanetary Systems with a Large Ultraviolet/Visible/Near-IR Space Observatory

    E-Print Network [OSTI]

    France, Kevin; Linsky, Jeffrey; Roberge, Aki; Ayres, Thomas; Barman, Travis; Brown, Alexander; Davenport, James; Desert, Jean-Michel; Domagal-Goldman, Shawn; Fleming, Brian; Fontenla, Juan; Fossati, Luca; Froning, Cynthia; Hallinan, Gregg; Hawley, Suzanne; Hu, Renyu; Kaltenegger, Lisa; Kasting, James; Kowlaski, Adam; Loyd, Parke; Mauas, Pablo; Miguel, Yamila; Osten, Rachel; Redfield, Seth; Rugheimer, Sarah; Schneider, Christian; Segura, Antigona; Stocke, John; Tian, Feng; Tumlinson, Jason; Vieytes, Mariela; Walkowicz, Lucianne; Wood, Brian; Youngblood, Allison

    2015-01-01

    Understanding the surface and atmospheric conditions of Earth-size, rocky planets in the habitable zones (HZs) of low-mass stars is currently one of the greatest astronomical endeavors. Knowledge of the planetary effective surface temperature alone is insufficient to accurately interpret biosignature gases when they are observed in the coming decades. The UV stellar spectrum drives and regulates the upper atmospheric heating and chemistry on Earth-like planets, is critical to the definition and interpretation of biosignature gases, and may even produce false-positives in our search for biologic activity. This white paper briefly describes the scientific motivation for panchromatic observations of exoplanetary systems as a whole (star and planet), argues that a future NASA UV/Vis/near-IR space observatory is well-suited to carry out this work, and describes technology development goals that can be achieved in the next decade to support the development of a UV/Vis/near-IR flagship mission in the 2020s.

  1. Leveraging Formal Methods and Fuzzing to Verify Security and Reliability Properties of Large-Scale High-Consequence Systems.

    SciTech Connect (OSTI)

    Ruthruff, Joseph; Armstrong, Robert C.; Davis, Benjamin Garry; Mayo, Jackson; Punnoose, Ratish J.

    2012-09-01

    Formal methods describe a class of system analysis techniques that seek to prove specific propertiesabout analyzed designs, or locate flaws compromising those properties. As an analysis capability,these techniques are the subject of increased interest fromboth internal and external customersof Sandia National Laboratories. Given this lab's other areas of expertise, Sandia is uniquelypositioned to advance the state-of-the-art with respect toseveral research and application areaswithin formal methods. This research project was a one-yeareffort funded by Sandia's CyberSecurity S&T Investment Area in its Laboratory Directed Research&Development program toinvestigate the opportunities for formal methods to impactSandia's present mission areas, morefully understand the needs of the research community in the area of formal methods and whereSandia can contribute, and clarify from those potential research paths those that would best advancethe mission-area interests of Sandia. The accomplishmentsfrom this project reinforce the utilityof formal methods in Sandia, particularly in areas relevantto Cyber Security, and set the stagefor continued Sandia investments to ensure this capabilityis utilized and advanced within thislaboratory to serve the national interest.4

  2. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. XX, NO. NN, MMM YYYY 1 System-Wide Leakage-Aware Energy Minimization

    E-Print Network [OSTI]

    Mishra, Prabhat

    the advantage of the fact that linear reduction in the supply voltage can quadratically reduce the power System-Wide Leakage-Aware Energy Minimization using Dynamic Voltage Scaling and Cache Reconfiguration voltage scaling (DVS) is well studied and known to be successful in reducing processor energy consumption

  3. ESPA Authoring Template

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

    Operator Location Length (mi) Diameter (in) Estimated Flow Capacity (MMcfd) Small Scale Distribution Systems Coffeyville- Burbank Chaparral Energy KS, OK 68 8 80 Enid-Purdy...

  4. Logical Attestation: An Authorization Architecture

    E-Print Network [OSTI]

    Schneider, Fred B.

    , Credentials-Based Authorization 1. Introduction Secure coprocessors, such as industry standard Trusted

  5. A Large-scale Exploration of Group Viewing Patterns Allison J.B. Chaney

    E-Print Network [OSTI]

    Kohli, Pushmeet

    of these findings on the design of group recommendation systems. ACM Classification Keywords H.5.3. Group the preferences of individuals in these settings--largely for the purpose of aiding users in discover- ing on modeling Authors contributed equally. Permission to make digital or hard copies of all or part

  6. State authorization manual. Volume 1

    SciTech Connect (OSTI)

    Brugler-Jones, S.

    1990-10-01

    The State Authorization Manual (SAM) (Vol. I) provides guidance for States applying for program revisions to their authorized RCRA State program. The SAM is an updated version of the 1988 State Consolidated RCRA Authorization Manual (SCRAM). It focuses on program revision applications rather than initial applications since most States have received initial authorization for the RCRA program. The SCRAM should continue to be used to assist States not yet authorized under the RCRA program.

  7. Photometric and spectroscopic studies of massive binaries in the large Magellanic Cloud. II. Three O-type systems in the 30 Dor region

    SciTech Connect (OSTI)

    Morrell, Nidia I. [Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena (Chile); Massey, Philip; Neugent, Kathryn F. [Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001 (United States); Penny, Laura R. [Department of Physics and Astronomy, The College of Charleston, Charleston, SC 29424 (United States); Gies, Douglas R., E-mail: nmorrell@lco.cl, E-mail: phil.massey@lowell.edu, E-mail: kneugent@lowell.edu, E-mail: penny@cofc.edu, E-mail: gies@chara.gsu.edu [Center for High Angular Resolution Astronomy and Department of Physics and Astronomy, Georgia State University, P.O. Box 5060, Atlanta, GA 30302 (United States)

    2014-07-10

    This is the second paper in a series devoted to the study of massive binary systems in the Large Magellanic Cloud (LMC). We mainly aim to provide accurate data that constrains the mass-luminosity relation for the most massive stars but also to address the long lasting problem known as the 'mass discrepancy'. We present here our results for three binaries (LMC 169782, LMC 171520, and [P93] 921) harboring the earliest O-type components—ranging from O4 V to O6.5 V—among our sample of 17 systems. Our photometry provided accurate periods for the studied systems, allowing the spectroscopic observations to be performed at selected phases where the radial velocity separation between binary components is larger. Following the procedure outlined in our first paper of this series, after solving the radial velocity curves for orbital parameters, we used tomographic reconstruction to obtain the individual spectra of each star, from which we determined effective temperatures via a model atmosphere fitting with FASTWIND. This information, combined with the light-curve analysis that was performed with GENSYN, enabled the determination of absolute masses, radii, and bolometric luminosities that are compared with those predicted by modern stellar evolutionary models finding that they agree within the uncertainties. Nevertheless, the comparison seems to confirm the small differences found in the first paper of this series in the sense that the evolutionary masses are slightly larger than the Keplerian ones, with differences averaging ?10%, or alternatively, the stellar evolutionary models predict luminosities that are somewhat lower than observed. Still, the overall agreement between the current evolutionary models and the empirically determined stellar parameters is remarkable.

  8. The International Authority on Air Movement Systems

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState of Pennsylvania U.S.The FirstEnergyDepartment

  9. Work Authorization System | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'S FUTURE.Energy Wind PowerRegina Rameika WomenWood and

  10. In hot and dry weather such as Phoenix summers, Air Conditioning (AC) and cooling becomes a large percentage of the power load on the grid. In this thesis the performance of a Hybrid AC System (HACS) is modeled and

    E-Print Network [OSTI]

    In hot and dry weather such as Phoenix summers, Air Conditioning (AC) and cooling becomes a large percentage of the power load on the grid. In this thesis the performance of a Hybrid AC System (HACS, especially during peak hours. In addition to solar photovoltaic (PV) panels, the system includes an ice

  11. Risk Management for Distributed Authorization Christian Skalka

    E-Print Network [OSTI]

    Wang, Xiaoyang "Sean"

    Risk Management for Distributed Authorization Christian Skalka University of Vermont X. Sean Wang assess risk, but risk in trust management is usually an informal consideration. In this paper, we de trust management systems treat all assertions as equally valid up to certificate authentication

  12. WEAPONS ON CAMPUS Authority: Chief of Police

    E-Print Network [OSTI]

    Scharf, Fred

    05.501 WEAPONS ON CAMPUS Authority: Chief of Police History: Established September 14, 2006 Source of weapons on UNCW property. II. Policy A. The University of North Carolina system of campuses is classified be unlawful for any person to possess the following weapons on UNCW property: 1. Dynamite cartridge, bomb

  13. Authorization in Trust Management: Features and Foundations

    E-Print Network [OSTI]

    Wang, Xiaoyang "Sean"

    Authorization in Trust Management: Features and Foundations Peter C. Chapin University of Vermont and Christian Skalka University of Vermont and X. Sean Wang University of Vermont Trust management systems' addresses: Peter Chapin, University of Vermont, Department of Computer Science, Burlington, VT 05405

  14. Research project on CO2 geological storage and groundwater resources: Large-scale hydrological evaluation and modeling of impact on groundwater systems

    E-Print Network [OSTI]

    Birkholzer, Jens; Zhou, Quanlin; Rutqvist, Jonny; Jordan, Preston; Zhang, K.; Tsang, Chin-Fu

    2008-01-01

    storage on shallow groundwater and pressure-controlled72 5.2. Modeling of Regional Groundwater2 Geological Storage and Groundwater Resources Large-Scale

  15. Integrated Safety Management System Guide (Volume 1) for use with Safety Management System Policies (DOE P 450.4, DOE P 450.5, and DOE P 450.6); The Functions, Responsibilities, and Authorities Manual; and DOE Acquisition Regulation

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

    2001-03-01

    This Department of Energy (DOE) Integrated Safety Management System (ISMS) Guide is approved for use by the Office of Environment, Safety and Health (EH) and the National Nuclear Security Administration (NNSA). This Guide is available for use by all DOE components and their contractors. This Guide is a consensus document coordinated by EH and prepared under the direction of the DOE Safety Management Implementation Team (SMIT). Replaces DOE G 450.4-1A. Canceled by DOE G 450.4-1C.

  16. Integrated Safety Management System Guide (Volume 1) for use with Safety Management System Policies (DOE P 450.4, DOE P 450.5, and DOE P 450.6); The Functions, Responsibilities, and Authorities Manual; and DOE Acquisition Regulation

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

    2001-03-01

    This Department of Energy (DOE) Integrated Safety Management System (ISMS) Guide is approved for use by the Office of Environment, Safety and Health (EH) and the National Nuclear Security Administration (NNSA). This Guide is available for use by all DOE components and their contractors. This Guide is a consensus document coordinated by EH and prepared under the direction of the DOE Safety Management Implementation Team (SMIT). Canceled by DOE G 450.4-1C.

  17. Multiple Sclerosis Journal The Author(s) 2013

    E-Print Network [OSTI]

    Gaser, Christian

    Multiple Sclerosis Journal 0(0) 1­8 © The Author(s) 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav DOI: 10.1177/1352458513478673 msj.sagepub.com MULTIPLE SCLEROSIS MSJ JOURNAL Introduction (MRIs) are the most striking finding in multiple sclerosis (MS) and they have become the most important

  18. Predicting Job Salaries from Text Descriptions Anonymous Author(s)

    E-Print Network [OSTI]

    Freitas, Nando de

    050 051 052 053 Predicting Job Salaries from Text Descriptions Anonymous Author(s) Affiliation Address descriptions of the posted jobs. Many listings provide a salary, but as many as half do not. For those listings that do not provide a salary, it is useful to predict a salary based on the description of that job. We

  19. FAQ for Case Study Authors

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

    Reviews FAQ for Case Study Authors Science Engagement Move your data Programs & Workshops Science Requirements Reviews Network Requirements Reviews Documents and Background...

  20. This book is designed to be a comprehensive treatment of parallel al gorithms for optimal control of large scale linear and bilinear systems.

    E-Print Network [OSTI]

    Gajic, Zoran

    ­ tion column, steam power system, hydro power plant, chemical plants, gas absorber, supported beam

  1. Chapitre 8: Simulation for Product Driven Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of controlling production through traditional MRP² systems. hal-00341987,version1-26Nov2008 Author manuscript) 221-255" #12;There is a large consensus in the IMS community between holonic control, production to the planning function is based on the five steps Manufacturing Planning and Control System (MPCS) structure

  2. Author's personal copy Cosmogenic 7

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    Author's personal copy Cosmogenic 7 Be and 22 Na in Finland: Production, observed periodicities a Radiation and Nuclear Safety Authority, Regional Laboratory in Northern Finland, Rovaniemi, Finland b Sodankyl¨a Geophysical Observatory, Oulu Unit, University of Oulu, Finland c Ioffe Physical

  3. Waste Management Coordinating Lead Authors

    E-Print Network [OSTI]

    Columbia University

    10 Waste Management Coordinating Lead Authors: Jean Bogner (USA) Lead Authors: Mohammed Abdelrafie Ahmed, C. Diaz, A. Faaij, Q. Gao, S. Hashimoto, K. Mareckova, R. Pipatti, T. Zhang, Waste Management University Press, Cambridge, United Kingdom and New York, NY, USA. #12;586 Waste Management Chapter 10 Table

  4. Authority and Review Chart Exhibit A R = REVIEW A = AUTHORITY

    E-Print Network [OSTI]

    Zhou, Yuanyuan

    Authority and Review Chart Exhibit A R = REVIEW A = AUTHORITY ¹ OFF-SCALE NOT HANDLED PER POLICY Chancellor Academic Affairs ASST PROF (LRF, In Residence, Clinical X) Appointment R R R³ R R R R R4 R A Merit/ Reappointment A A³ R A R A Merit with off-scale salary increase R R³ R R R R R A Merit with 6th Year Market os

  5. AUTHORITY

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s sconveyance of9,Septemeber 19, 2014

  6. Collaborative Authoring of Walden's Paths 

    E-Print Network [OSTI]

    Li, Yuanling

    2012-10-19

    The World Wide Web contains rich collections of digital materials that can be used in education and learning settings. The collaborative authoring prototype of Walden's Paths targets two groups of users: educators and ...

  7. Author Order and Research Quality

    E-Print Network [OSTI]

    Kissan, Joseph; Laband, David N.; Patil, Vivek

    2005-01-01

    We observe a great deal of heterogeneity in the manner in which author orderings are assigned both across and within academic markets. To better understand this phenomenon, we develop and analyze a stochastic model of ...

  8. Danish Energy Authority Final report

    E-Print Network [OSTI]

    1 Danish Energy Authority Final report Kaliningrad Regional District Heating Network 2004 - 2006 2006 #12;Kaliningrad District Heating Network Project 2004 - 2006 2 Table of content The report........................................................................................................... 7 1.4.1 District heating in the Region

  9. Retrofitting the Tennessee Valley Authority

    E-Print Network [OSTI]

    Zeiber, Kristen (Kristen Ann)

    2013-01-01

    As the flagship of the New Deal, the Tennessee Valley Authority (TVA) was a triumph of regional and environmental design that has since fallen on hard times. When writer James Agee toured the region in 1935, he described ...

  10. Second-order adjoint sensitivity analysis procedure (SO-ASAP) for computing exactly and efficiently first- and second-order sensitivities in large-scale linear systems: I. Computational methodology

    E-Print Network [OSTI]

    Dan G. Cacuci

    2014-11-22

    This work presents the second-order forward and adjoint sensitivity analysis procedures (SO-FSAP and SO-ASAP) for computing exactly and efficiently the second-order functional derivatives of physical (engineering, biological, etc.) system responses to the system's model parameters.The definition of system parameters used in this work includes all computational input data, correlations, initial and/or boundary conditions, etc. For a physical system comprising N parameters and M responses, we note that the SO-FSAP requires a total of 0.5*N**2+1.5*N large-scale computations for obtaining all of the first- and second-order sensitivities, for all M system responses. On the other hand, the SO-ASAP requires a total of 2*N+1 large-scale computations for obtaining all of the first- and second-order sensitivities, for one functional-type system responses. Therefore, the SO-ASAP should be used when M is much larger than N, while the SO-ASAP should be used when N is much larger than M. The original SO-ASAP presented in this work should enable the hitherto very difficult, if not intractable, exact computation of all of the second-order response sensitivities (i.e., functional Gateaux-derivatives) for large-systems involving many parameters, as usually encountered in practice. Very importantly, the implementation of the SO-ASAP requires very little additional effort beyond the construction of the adjoint sensitivity system needed for computing the first-order sensitivities.

  11. Large-scale impact of CO2 storage in deep saline aquifers: A sensitivity study on pressure response in stratified systems

    E-Print Network [OSTI]

    Zhou, Quanlin

    Large-scale impact of CO2 storage in deep saline aquifers: A sensitivity study on pressure response storage potential of all the geological CO2 storage options and are widely distributed throughout the globe in all sedimentary basins.ForCO2 storage tohaveasignificantimpact on atmospheric levels

  12. A Pedagogical Interface for Authoring Adaptive e-Learning Courses

    E-Print Network [OSTI]

    Lau, W. H. Nynson

    different approaches towards learning. In light of this, adaptive educational hypermedia systems (AEHSsA Pedagogical Interface for Authoring Adaptive e-Learning Courses Christopher Watson1 Frederick W to support adaptive e-learning course authoring for different types of students. They require teachers

  13. 2008 The Authors Journal Compilation 2008 Blackwell Publishing Ltd

    E-Print Network [OSTI]

    Troch, Peter

    © 2008 The Authors Journal Compilation © 2008 Blackwell Publishing Ltd Geography Compass 2 (2008 and Water Resources, University of Arizona Abstract Predictions of hydrologic system response to natural some threshold #12;2 Landscape heterogeneity and hydrological theory © 2008 The Authors Geography

  14. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    converter that can be used to actively cool electronic devices, concentrated photovoltaic solar cells, computers and large waste heat producing systems, while generating...

  15. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 16, NO. 9, SEPTEMBER 2008 1127 Static and Dynamic Temperature-Aware Scheduling

    E-Print Network [OSTI]

    Simunic, Tajana

    and performance, and increase cooling costs and leakage power. In this paper, we explore the benefits of temper using workload character- istics collected from a real system by Sun's Continuous System Telemetry. We. The Sun Ul- traSPARC T1 [15] and the IBM Cell [13] are examples of such processors. However, in deep

  16. Interference Mitigation in Femtocell Network Using Anonymous Author(s)

    E-Print Network [OSTI]

    Freitas, Nando de

    the power adaptation process of the FUEs and MUE to be a discrete multi agent Markov decision problem 050 051 052 053 Interference Mitigation in Femtocell Network Using Q-learning Anonymous Author problems is the so-called co-tier and cross-tier interference caused by the new femtocell network layer

  17. A modeling and control framework for operating large-scale electric power systems under present and newly evolving competitive industry structures

    E-Print Network [OSTI]

    Ilic, Marija

    1995-01-01

    This paper introduces a systematic, structure-based modeling framework for analysis and control of electric power systems for processes evolving over the mid-term and long-term time horizons. Much simpler models than the ...

  18. Late Holocene uplift of Rhodes, Greece: evidence for a large tsunamigenic earthquake and the implications for the tectonics of the eastern Hellenic Trench System

    E-Print Network [OSTI]

    Howell, Andy; Jackson, James; England, Philip; Higham, Tom; Synolakis, Costas

    2015-07-28

    (Pirazzoli et al. 1989), or alternatively to one large-magnitude earthquake on an offshore fault (Kontogianni et al. 2002). We constrain the timing of uplift using radiocarbon dating, and refine the uplift distribution suggested by Kontogianni et al. (2002... , at Rhodes (Chaumillon & Mascle 1997, Figure 1). The presence of N-S normal-fault scarps across Crete and the Peloponnese and the strikes of faults offshore from Crete (e.g. Geophys. J. Int. 3 Huchon et al. 1982; Armijo et al. 1992; Caputo et al. 2010...

  19. Active Network Approach to the Design of Secure Online Auction Systems Basem Shihada and Sampalli Srinivas

    E-Print Network [OSTI]

    Shihada, Basem

    authentication and authorization, bid validation and bid data encryption. This paper presents a novel approach and authorization, bid validation and bid data encryption. 1.1 Active Networks Active networking is a new networking} @cs.dal.ca ABSTRACT Online auction systems require high-speed bid transmission, large bandwidth

  20. n errla lona Guest Author -

    E-Print Network [OSTI]

    F R p · Fiber Remforced Plastics n errla lona·········· Guest Author - Dr. Aftab Mufti. P-Stengthening Using Prestressed Carbon Fiber Sheets In recent years, researthers at EMfA Duhendorl, Switzerland, have been working extensively on ~.I ,trengtllening reinforced concrete member.; u,mg lillht· weight carbon

  1. Designated Responsible Authority (DRA) Training

    E-Print Network [OSTI]

    Minnesota, University of

    · The role of Designated Responsible Authority (DRA) is defined in the Using Vehicles for University Business policy. · The head of each University department with permanently assigned vehicles must appoint. Be familiar with the policies and related documents governing the use of University vehicles, and direct

  2. JOURNAL AUTHORS SURVEY Prepared by

    E-Print Network [OSTI]

    Stevenson, Paul

    JISC/OSI JOURNAL AUTHORS SURVEY Report Prepared by Key Perspectives Ltd 48 Old Coach Road, Playing behind its development 4 2.2 Models and definitions of open access 8 2.2.1 Open access journals 8 2 4.1 Respondent profiles 18 4.2 Awareness of open access journals 18 4.2.1 Extent and longevity

  3. Danish Energy Authority Project Document

    E-Print Network [OSTI]

    for larger existing buildings subject to major renovation 4. Energy performance certification (energyDanish Energy Authority Project Document Implementation of the EU directive on the energy performance of buildings: Development of the Latvian Scheme for energy auditing of buildings and inspection

  4. Danish Energy Authority Final Report

    E-Print Network [OSTI]

    on the energy performance for larger existing buildings subject to major renovation 4. Energy performanceDanish Energy Authority Final Report Implementation of the EU directive on the energy performance of buildings: Development of the Latvian Scheme for energy auditing of buildings and inspection of boilers

  5. With Compliments of the Author

    E-Print Network [OSTI]

    Zhang, Meirong

    Operators and Matrices With Compliments of the Author OaM-08-50 889­899 Zagreb, Croatia Volume 8, Croatia. All correspondence and subscription orders should be addressed to the Editorial Office: www, Croatia Fax: +385 1 6008799 The content of this publication is indexed in Mathematical Reviews (Math

  6. Only by continuous self-appraisal can a large information system make itself responsive to the needs of the scientific community.

    E-Print Network [OSTI]

    Saracevic, Tefko

    to the needs of the scientific community. Concluding sentence in Lancaster (1969) Abstract The main objective requests and possible needs. In IR tests, retrieval effectiveness is established by comparing IR systems and its unique place in the history of IR evaluation. LIBRARY TRENDS, Vol. 56, No. 4, Spring 2008 ("The

  7. From bicycle sharing system movements to users: a typology of Vlo'v cyclists in Lyon based on large-scale behavioural dataset

    E-Print Network [OSTI]

    Robardet, Céline

    From bicycle sharing system movements to users: a typology of Vélo'v cyclists in Lyon based Robardet c a Université de Lyon, CNRS, Centre Max Weber (UMR 5283), ENS de Lyon, France b Université de Lyon, CNRS, Laboratoire de Physique (UMR 5672), ENS de Lyon, France c Université de Lyon, CNRS, LIRIS

  8. Large Engineering Systems Conference on Power Engineering, July 2004, Halifax Canada. IEEE 2004 1 Abstract--One important assumption in a model of an

    E-Print Network [OSTI]

    the impacts of bid format and profit calculation on market outcomes in different scenarios. Index Terms-- Power system economics, Pricing, Market design I. INTRODUCTION ne of the first assumptions in a model Abstract--One important assumption in a model of an electricity market is the format of bids and costs

  9. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 23, NO. 3, MARCH 2015 603 Arithmetic-Based Binary-to-RNS Converter Modulo {2nk}

    E-Print Network [OSTI]

    Sousa, Leonel

    Arithmetic-Based Binary-to-RNS Converter Modulo {2n±k} for jn-Bit Dynamic Range Pedro Miguens Matutino-residue number system (RNS) conversion modulo {2n ±k} is proposed. This structure is based only on adders and constant multipliers. This brief is motivated by the existing {2n ± k} binary-to-RNS converters, which

  10. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. XX, NO. Y, MONTH 2002 1 Techniques for Energy-Efficient Communication

    E-Print Network [OSTI]

    Potkonjak, Miodrag

    and exploit advantages pro- vided by variable voltage design methodology to optimally select voltage, our system may have different stages running at different speeds to conserve energy while providing fragmentation and voltage setting. We further study a less practical case when each stage can dynamically change

  11. 392 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 23, NO. 2, FEBRUARY 2015 Energy Aware Mapping for Reconfigurable Wireless MPSoCs

    E-Print Network [OSTI]

    Martin, Jim

    , if a reconfigurable fabric is used then there is a reconfiguration energy cost associated with the change of con Energy Aware Mapping for Reconfigurable Wireless MPSoCs Amr M. A. Hussien, Rahul Amin, Ahmed M. Eltawil, and Jim Martin Abstract--Energy management for multimode software defined radio systems remains a daunting

  12. Large Area Vacuum Deposited Coatings

    SciTech Connect (OSTI)

    Martin, Peter M.

    2003-04-30

    It's easy to make the myriad of types of large area and decorative coatings for granted. We probably don't even think about most of them; the low-e and heat mirror coatings on our windows and car windows, the mirrors in displays, antireflection coatings on windows and displays, protective coatings on aircraft windows, heater coatings on windshields and aircraft windows, solar reflectors, thin film solar cells, telescope mirrors, Hubble mirrors, transparent conductive coatings, and the list goes on. All these products require large deposition systems and chambers. Also, don't forget that large batches of small substrates or parts are coated in large chambers. In order to be cost effective hundreds of ophthalmic lenses, automobile reflectors, display screens, lamp reflectors, cell phone windows, laser reflectors, DWDM filters, are coated in batches.

  13. CALIFORNIA ENERGY Large HVAC Building

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION Large HVAC Building Survey Information Database of Buildings over 100 Energy Systems: Productivity and Building Science Program. This program was funded by the California of Portland Energy Conservation, Inc. Project Management: Cathy Higgins, Program Director for New Buildings

  14. Twofold enhancement of the hidden-order/large-moment antiferromagnetic phase boundary in the URu2-xFexSi? system

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

    Kanchanavatee, N.; Janoschek, M.; Baumbach, R. E.; Hamlin, J. J.; Zocco, D. A.; Huang, K.; Maple, M. B.

    2011-12-16

    Electrical resistivity, specific heat, and magnetization measurements on URu2-xFexSi? reveal a twofold enhancement of the “hidden-order” (HO)/large-moment antiferromagnetic (LMAFM) phase boundary T?(x). The T?(Pch) curve, obtained by converting x to “chemical pressure” Pch, is strikingly similar to the T?(P) curve, where P is applied pressure, for URu?Si? both exhibit a “kink” at 1.5 GPa and a maximum at ~7 GPa. This similarity suggests that the HO-LMAFM transition at 1.5 GPa in URu?Si? occurs at x ? 0.2 (Pch?1.5 GPa) in URu2-xFexSi?. URu2-xFexSi? provides an opportunity for studying the HO and LMAFM phases with methods that probe the electronic structure [e.g.,more »scanning tunneling microscopy (STM), angle-resolved photoemission spectroscopy (ARPES), and point-contact spectroscopy (PCS)] but cannot be used under pressure.« less

  15. Large displacement spherical joint

    DOE Patents [OSTI]

    Bieg, Lothar F. (Albuquerque, NM); Benavides, Gilbert L. (Albuquerque, NM)

    2002-01-01

    A new class of spherical joints has a very large accessible full cone angle, a property which is beneficial for a wide range of applications. Despite the large cone angles, these joints move freely without singularities.

  16. Central Characterization Program (CCP) Transuranic Authorized...

    Office of Environmental Management (EM)

    Authorized Methods for Payload Control Central Characterization Program (CCP) Transuranic Authorized Methods for Payload Control This document was used to determine facts and...

  17. Energy Department Authorizes Corpus Christi Liquefaction Project...

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

    Authorizes Corpus Christi Liquefaction Project to Export Liquefied Natural Gas Energy Department Authorizes Corpus Christi Liquefaction Project to Export Liquefied Natural Gas May...

  18. Peoria Tribe: Housing Authority- 2010 Project

    Broader source: Energy.gov [DOE]

    The Housing Authority of the Peoria Tribe of Indians of Oklahoma (Peoria Housing Authority or PHA) will conduct the "PHA Weatherization Training Project."

  19. Obama Administration Announces Billions in Lending Authority...

    Energy Savers [EERE]

    Billions in Lending Authority for Renewable Energy Projects and to Modernize the Grid Obama Administration Announces Billions in Lending Authority for Renewable Energy Projects and...

  20. Management/ H. Morgan Data Base Systems Editor

    E-Print Network [OSTI]

    Shneiderman, Ben

    .22 Copyright @ 1974,Association for Computing Machinery, Inc. General permission to republish granted by permission of the Association for Computing Machinery. Authors' addresses: Ben Shneiderman programming, a crucial factor when dealing with the design of large programming systems. Rather than viewing

  1. Large Break LOCA Accident Management Strategies for Accidents With Large Containment Leaks

    SciTech Connect (OSTI)

    Sdouz, Gert [ARC Seibersdorf Research GmbH, Viktor Kaplan-Strasse 2, 2700 Wr. Neustadt (Austria)

    2006-07-01

    The goal of this work is the investigation of the influence of different accident management strategies on the thermal-hydraulics in the containment during a Large Break Loss of Coolant Accident with a large containment leak from the beginning of the accident. The increasing relevance of terrorism suggests a closer look at this kind of severe accidents. Normally the course of severe accidents and their associated phenomena are investigated with the assumption of an intact containment from the beginning of the accident. This intact containment has the ability to retain a large part of the radioactive inventory. In these cases there is only a release via a very small leakage due to the un-tightness of the containment up to cavity bottom melt through. This paper represents the last part of a comprehensive study on the influence of accident management strategies on the source term of VVER-1000 reactors. Basically two different accident sequences were investigated: the 'Station Blackout'- sequence and the 'Large Break LOCA'. In a first step the source term calculations were performed assuming an intact containment from the beginning of the accident and no accident management action. In a further step the influence of different accident management strategies was studied. The last part of the project was a repetition of the calculations with the assumption of a damaged containment from the beginning of the accident. This paper concentrates on the last step in the case of a Large Break LOCA. To be able to compare the results with calculations performed years ago the calculations were performed using the Source Term Code Package (STCP), hydrogen explosions are not considered. In this study four different scenarios have been investigated. The main parameter was the switch on time of the spray systems. One of the results is the influence of different accident management strategies on the source term. In the comparison with the sequence with intact containment it was demonstrated that the accident management measures have quite lower consequences. In addition it was shown that in the case of a 'Large Break LOCA'-sequence the intact containment retains the nuclides up to a factor of 20 000. This is much more than in the case of a 'Station Blackout'-sequence. Within the frame of the study 17 source terms have been generated to evaluate in detail accident management strategies for VVER-1000 reactors. (authors)0.

  2. Sol-gel-derived Epitaxial Nanocomposite Thin Films with Large...

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

    Sol-gel-derived Epitaxial Nanocomposite Thin Films with Large Sharp Magnetoelectric Effect Home Author: B. Liu, T. Sun, J. He, V. P. Dravid Year: 2010 Abstract: Nanostructures of...

  3. Author Query Form Article ID

    E-Print Network [OSTI]

    Sun, Dengfeng

    service capacity optimization for both electric power suppliers and independent system operator Copyright capacity optimization problems for both Market participants (MP) and Independent System Operator (ISO). For a market participant, the firm needs to determine the capacity allocation plan for various AS to pursue

  4. Running Large Scale Jobs

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

    try on their large scale applications on Hopper for better performance. Try different compilers and compiler options The available compilers on Hopper are PGI, Cray, Intel, GNU,...

  5. Numerical methods for the solution of large and very large, sparse Lyapunov equations

    SciTech Connect (OSTI)

    Hodel, A.S.

    1989-01-01

    In this dissertation the author considers the numerical solution of large (100 {le} n {le} 1000) and very large (n {ge} 1000), sparse Lyapunov equations AX-+ XA' + Q = 0. The author first presents a parallel version of the Hammarling algorithm for the solution of Lyapunov equations where the coefficient matrix A is large and dense. The author then presents a novel parallel algorithm for the solution of Lyapunov equations where A is large and banded. A detailed analysis of the computational requirements in tandem with the results of numerical experiments with these algorithms on an Alliant FX-8 multiprocessor is provided. In the second half of this dissertation, the author considers the numerical solution of Lyapunov equations where the coefficient matrix A is very large and sparse. Under these conditions, the solution X of the Lyapunov equation is typically full rank and dense. The associated excessive storage requirements compel us to compute low rank approximations of the solution X of the Lyapunov equation. The author presents in detail two methods for the low rank approximate solution of the Lyapunov equation. The first method, Trace Maximization, computes an orthogonal matrix V {element of}{Re}{sup n{times}k} that maximizes the trace of the solution {Sigma}{sub V} of the associated reduced order Lyapunov equation (V'AV){Sigma}{sub V} + {Sigma}{sub V}(V'A'V) + V'QV = 0. While Trace Maximization is an effective method for low rank approximation of explicitly specified Hermitian matrices, the author shows that Trace Maximization is not an effective strategy for low rank approximation of positive semidefinite Hermitian matrices X that are implicitly specified as the solution of a Lyapunov equation. Our second algorithm for low rank approximate solution of Lyapunov equations, Approximate Power Iteration, attempts to directly compute an orthogonal basis of the dominant eigenspace of the solution X.

  6. Fischer-Tropsch synthesis from a low H/sub 2/:CO gas in a dry fluidized-bed system. Technical progress report, September 1, 1982-March 31, 1983. [Large number of references

    SciTech Connect (OSTI)

    Liu, Y.A.; Squires, A.M.; Konrad, K.

    1983-01-01

    The objective of this project is to experimentally develop and demonstrate a novel dry fluidized-bed reactor system (called heat tray) for Fischer-Tropsch synthesis from a low H/sub 2/:CO gas. The new reactor involves conducting catalytic synthesis reactions primarily in a horizontal conveying zone, in which fine particles of iron catalyst are carried in a relatively dilute suspension by a large flow of reacting gas. A secondary reaction zone, in the form of a shallow fluidized bed of catalyst particles, is situated beneath the primary reaction zone. This shallow bed also has immersed horizontal heat-transfer tubes for removing reaction heat. A major thrust of the new reactor development is to prevent carbon deposits from forming on the iron catalyst, which cause deactivation and physical degradation. This is to be achieved by conducting the Fischer-Tropsch synthesis in an unsteady-state mode, particularly by alternately exposing the iron catalyst to a large flow of low H/sub 2/:CO gas for a short period of time and to a small flow of H/sub 2/-rich gas for a long period of time. During the past several months, the design, construction and steady-state testing of a fully-automated vibrofluidized microreactor system have been successfully completed, and a computer-controlled gas chromatographic (GC) system for gas-product analysis has also been tied to the reactor system. Work on unsteady-state Fischer-Tropsch synthesis experiments is to be initiated shortly. In addition, supporting hydrodynamic and heat-transfer studies in several shallow fluidized-bed systems have produced some encouraging data. The results indicate very high heat-transfer coefficients of 300-400 W/m/sup 2/-/sup 0/K between a shallow bed and its immersed horizontal heat-transfer tube, and of about 7000 W/m/sup 2/-/sup 0/K between a supernatant gas stream and a shallow bed which closely simulates the microreactor system in use.

  7. Adaptive Optics for Large Telescopes

    SciTech Connect (OSTI)

    Olivier, S

    2008-06-27

    The use of adaptive optics was originally conceived by astronomers seeking to correct the blurring of images made with large telescopes due to the effects of atmospheric turbulence. The basic idea is to use a device, a wave front corrector, to adjust the phase of light passing through an optical system, based on some measurement of the spatial variation of the phase transverse to the light propagation direction, using a wave front sensor. Although the original concept was intended for application to astronomical imaging, the technique can be more generally applied. For instance, adaptive optics systems have been used for several decades to correct for aberrations in high-power laser systems. At Lawrence Livermore National Laboratory (LLNL), the world's largest laser system, the National Ignition Facility, uses adaptive optics to correct for aberrations in each of the 192 beams, all of which must be precisely focused on a millimeter scale target in order to perform nuclear physics experiments.

  8. How Do I Get Authorization to Work with Lasers at the ALS?

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

    case, the process is usually much simpler. These laser systems will have already had a formal review and authorization Activity Hazard Document (AHD), and the bulk of any...

  9. Author's personal copy Research Letters

    E-Print Network [OSTI]

    Yao, Y. Lawrence

    that laser energy is partly absorbed by drug molecules, and less energy is available to melt the polymer matrix. Ó 2013 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights reserved-based drug delivery systems. Polymer crystallinity can be modified through thermal treatments such as melting

  10. Generating Precise Dependencies for Large Software

    E-Print Network [OSTI]

    Cortes, Corinna

    Generating Precise Dependencies for Large Software Pei Wang, Jinqiu Yang, Lin Tan University-term software development, especially for large software with millions of lines of code. This paper designs/C++ software projects. The tool extracts both symbol- level and module-level dependencies of a software system

  11. Large power grid analysis using domain decomposition

    E-Print Network [OSTI]

    Mohanram, Kartik

    Large power grid analysis using domain decomposition Quming Zhou, Kai Sun, Kartik Mohanram, Danny C referred to as the power grid. The power grid for a modern integrated circuit may consist of several grid is traditionally described as a large-scale linear system. Simulation of power grids usually

  12. Software Constraints for Large Application Systems

    E-Print Network [OSTI]

    Sjoberg, D.I.K., Welland, R.C.

    Sjoberg, D.I.K., Welland,R.C. Atkinson,M.P. Computer Journal, Volume 40 pp 598-616 Oxford University Press

  13. GM-Ford-Chrysler: Allocating Loan Authority

    Broader source: Energy.gov [DOE]

    Statement from GM, Ford, and Chrysler: "Allocating the $25 Billion in Direct Loan Authority to Loan Applicants"

  14. Simulation of Thermal Plant Optimization and Hydraulic Aspects of Thermal Distribution Loops for Large Campuses 

    E-Print Network [OSTI]

    Chen, Q.

    2004-01-01

    Following an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. ...

  15. State authorization manual. Volume 2. Appendices

    SciTech Connect (OSTI)

    Brugler-Jones, S.

    1990-10-01

    The document provides the supportive appendices for Volume 1 of the State Authorization Manual (SAM), which provides guidance for States applying for program revisions to their authorized RCRA State program. Among the appendices are: various program checklists, lists of revision checklists by cluster, model Federal Register Notices, guidance for State Authorization Files, and guidance for using Wordperfect files and for CFR files.

  16. Large Customers (DR Sellers)

    SciTech Connect (OSTI)

    Kiliccot, Sila

    2011-10-25

    State of the large customers for demand response integration of solar and wind into electric grid; openADR; CAISO; DR as a pseudo generation; commercial and industrial DR strategies; California regulations

  17. Pattern Alteration: Large Abdomen 

    E-Print Network [OSTI]

    2006-08-04

    A large abdomen causes the hemline on a skirt to hike in front and pulls the side seam forward. This publication gives instructions on altering patterns for a basic skirt and pants....

  18. Cumulative biophysical impact of small and large hydropower development, Nu River, China

    E-Print Network [OSTI]

    Tullos, Desiree

    Cumulative biophysical impact of small and large hydropower development, Nu River, China Authors hydropower facilities. This support is manifested in national and international energy and development policies designed to incentivize growth in the small hydropower sector while curtailing large dam

  19. built by airport authority for

    E-Print Network [OSTI]

    Ladkin, Peter B.

    on landing 3.1.1.3.1.1.3 low weight on each main gear wheel 3.1.1.3.1.1.1.3 condition of RWY surface 3 between consequences of design and behaviour expected by pilots 3.1.1.3.2.2 braking systems' logical design 3.1.1.3.2 speed brakes and thrust reverser deployment delayed 3.1.1.3 braking delayed 3

  20. Author's personal copy How large is the subducted water flux? New constraints on mantle regassing rates

    E-Print Network [OSTI]

    Mukhopadhyay, Sujoy

    as pore water and chemically- bound water in sediments, altered oceanic crust and serpentinized lith (Fig. 1). A quantitative assessment of the long-term water cycle is critical to our understanding and Kohlstedt, 1996; Karato and Jung, 2003; Mei and Kohlstedt, 2000), structure and style of convection (Crowley

  1. Author Identification on the Large Scale David Madigan1,3

    E-Print Network [OSTI]

    of a broader growth within computer science of identification technologies, including biometrics (retinal processing [5, 46] in authorship attribution. These techniques have also been applied to related prob- lems

  2. Specification and Analysis of Attribute-based Authorization Policy

    E-Print Network [OSTI]

    Sandhu, Ravi

    Policy The Big Goal Flexible, scalable authorization for decentralized, collaborative environments policy to support collaboration in open systems RT: A Role-based Trust-management* framework Need © William H. Winsborough 6 Role-based Trust Management (RT) A family of credential / policy languages

  3. Specification and Analysis of Attribute-based Authorization Policy

    E-Print Network [OSTI]

    Sandhu, Ravi

    Policy The Big Goal Flexible, scalable authorization for decentralized, collaborative environments policy to support collaboration in open systems RT: A Role-based Trust-management* framework Need. Winsborough 6 Role-based Trust Management (RT) A family of credential / policy languages Simplest, RT0, has

  4. Integrating repositories with fuel cycles: The airport authority model

    SciTech Connect (OSTI)

    Forsberg, C. [Massachusetts Inst. of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307 (United States)

    2012-07-01

    The organization of the fuel cycle is a legacy of World War II and the cold war. Fuel cycle facilities were developed and deployed without consideration of the waste management implications. This led to the fuel cycle model of a geological repository site with a single owner, a single function (disposal), and no other facilities on site. Recent studies indicate large economic, safety, repository performance, nonproliferation, and institutional incentives to collocate and integrate all back-end facilities. Site functions could include geological disposal of spent nuclear fuel (SNF) with the option for future retrievability, disposal of other wastes, reprocessing with fuel fabrication, radioisotope production, other facilities that generate significant radioactive wastes, SNF inspection (navy and commercial), and related services such as SNF safeguards equipment testing and training. This implies a site with multiple facilities with different owners sharing some facilities and using common facilities - the repository and SNF receiving. This requires a different repository site institutional structure. We propose development of repository site authorities modeled after airport authorities. Airport authorities manage airports with government-owned runways, collocated or shared public and private airline terminals, commercial and federal military facilities, aircraft maintenance bases, and related operations - all enabled and benefiting the high-value runway asset and access to it via taxi ways. With a repository site authority the high value asset is the repository. The SNF and HLW receiving and storage facilities (equivalent to the airport terminal) serve the repository, any future reprocessing plants, and others with needs for access to SNF and other wastes. Non-public special-built roadways and on-site rail lines (equivalent to taxi ways) connect facilities. Airport authorities are typically chartered by state governments and managed by commissions with members appointed by the state governor, county governments, and city governments. This structure (1) enables state and local governments to work together to maximize job and tax benefits to local communities and the state, (2) provides a mechanism to address local concerns such as airport noise, and (3) creates an institutional structure with large incentives to maximize the value of the common asset, the runway. A repository site authority would have a similar structure and be the local interface to any national waste management authority. (authors)

  5. Nonlinear Pricing in Markets with Interdependent Demand Author(s): Shmuel S. Oren, Stephen A. Smith and Robert B. Wilson

    E-Print Network [OSTI]

    Oren, Shmuel S.

    such as electric power are priced with increasing unit prices (e.g., lifeline rates), but such pricing. This paper has been with the authors for 3 revisions. t Department of Engineering-Economic Systems, Stanford which significantly improved the quality of this paper. We also thank Subrata Sen and Donald Morrison

  6. Standing Delegations of Authority as at 1 December 2014 1 STANDING DELEGATIONS OF AUTHORITY

    E-Print Network [OSTI]

    University of Technology, Sydney

    Standing Delegations of Authority as at 1 December 2014 1 STANDING DELEGATIONS OF AUTHORITY 1 the Delegation Principles outlined on pages 5 and 6. Any questions about the interpretation of the Standing Delegations of Authority, suggestions for amendment of the Standing Delegations of Authority and requests

  7. Second-order adjoint sensitivity analysis procedure (SO-ASAP) for computing exactly and efficiently first- and second-order sensitivities in large-scale linear systems:II. Illustrative application to a paradigm particle diffusion problem

    E-Print Network [OSTI]

    Dan G. Cacuci

    2014-11-22

    This work presents an illustrative application of the second-order adjoint sensitivity analysis procedure (SO-ASAP) to a paradigm neutron diffusion problem, which is sufficiently simple to admit an exact solution, thereby making transparent the mathematical derivations underlying the SO-ASAP. The illustrative application presented in this work shows that the actual number of adjoint computations needed for computing all of the first- and second-order response sensitivities may significantly less than 2*N+1 per response. For this illustrative problem, four (4) large-scale adjoint computations sufficed for the complete and exact computations of all 4 first- and 10 distinct second-order derivatives. Furthermore, the construction and solution of the SASS requires very little additional effort beyond the construction of the adjoint sensitivity system needed for computing the first-order sensitivities. Only the sources on the right-sides of the diffusion operator needed to be modified; the left-side of the differential equations remained unchanged. Most of the second-order relative sensitivities are just as large as or larger than the first-order ones. We show that the second-order sensitivities cause the expected value of the response to differ from the computed nominal value of the response; and they contribute decisively to causing asymmetries in the response distribution. Neglecting the second-order sensitivities would nullify the third-order response correlations, and hence would nullify the skewness of the response; consequently, any events occurring in a response's long and/or short tails, which are characteristic of rare but decisive events would likely be missed. We expect the SO-ASAP to affect significantly other fields that need efficiently computed second-order response sensitivities, e.g., optimization, data assimilation/adjustment, model calibration, and predictive modeling.

  8. National Training and Education Resource Advanced Authoring Training

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

    Advanced Authoring Training Participant Guide NTER Advanced Authoring Training Participant Guide (032012 pw) 2 Contents OBJECTIVES ......

  9. Montana Water Quality Permit Application, Nondegradation Authorization...

    Open Energy Info (EERE)

    Montana Water Quality Permit Application, Nondegradation Authorization, and Permit Fees Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory...

  10. Authorization basis for the 209-E Building

    SciTech Connect (OSTI)

    TIFFANY, M.S.

    1999-02-23

    This Authorization Basis document is one of three documents that constitute the Authorization Basis for the 209-E Building. Per the U.S. Department of Energy, Richland Operations Office (RL) letter 98-WSD-074, this document, the 209-E Building Preliminary Hazards Analysis (WHC-SD-WM-TI-789), and the 209-E Building Safety Evaluation Report (97-WSD-074) constitute the Authorization Basis for the 209-E Building. This Authorization Basis and the associated controls and safety programs will remain in place until safety documentation addressing deactivation of the 209-E Building is developed by the contractor and approved by RL.

  11. Coordination of Federal Authorizations for Electric Transmission...

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

    rulemaking and opportunity for comment on the coordination of federal authorizations for electric transmission facilities, September 19, 2008 Coordination of Federal...

  12. Disposal Authorization Statement | Department of Energy

    Office of Environmental Management (EM)

    DAS requirements ensure the facility does not pose a threat to human health and the environment, defines the authorization for the design, construction, operation,...

  13. Stockroom Authorization Department of Chemistry & Biochemistry

    E-Print Network [OSTI]

    Morgan, Stephen L.

    Stockroom Authorization Department of Chemistry & Biochemistry University of South Carolina, GSRC supplies from the Dept. of Chemistry & Biochemistry Stockroom must bring with them this completed pre

  14. Danish Energy Authority Poland -Electricity and gas

    E-Print Network [OSTI]

    Danish Energy Authority Poland - Electricity and gas market development study and practical guidelines for using EU Funds Electricity sector analyses December 2004 #12;Danish Energy Authority Poland - Electricity and gas market development study and practical guidelines for using EU Funds Electricity sector

  15. Financial Policy Manual 2107 ACCOUNTING AUTHORITY & RESPONSIBILITY

    E-Print Network [OSTI]

    George, Edward I.

    Financial Policy Manual Page 1 2107 ACCOUNTING AUTHORITY & RESPONSIBILITY Effective: December 1986: Research Services PURPOSE To assign authority and responsibility for the accounting for sponsored projects must be separately accounted for per the terms of the award An advance account may be established prior

  16. Policy-Based Authorization William R. Cook

    E-Print Network [OSTI]

    Cook, William R.

    Page 1 Policy-Based Authorization William R. Cook Department of Computer Sciences University of Texas at Austin Abstract This paper discusses policy-based authorization, an effective intermediate point between MAC and DAC that promises to combine the best features of both models. Policy

  17. Using the Web for Name Authority Work

    E-Print Network [OSTI]

    Whittaker, Beth M.; Spillane, Jodi Lynn

    2001-01-01

    While many catalogers are using the Web to find the information they need to perform authority work quickly and accurately, the full potential of the Web to assist catalogers in name authority work has yet to be realized. The ever-growing nature...

  18. Composting Large Animal Carcasses 

    E-Print Network [OSTI]

    Auvermann, Brent W.; Mukhtar, Saqib; Heflin, Kevin

    2006-10-31

    and Kevin Heflin* Livestock producers and large-animal veterinar- ians face a growing problem in rural Texas?what to do with dead animals. Rendering services are getting more expensive and harder to come by, and just leav- ing carcasses to predators... set up a polyethylene tank to hold water and rig it with a float valve so that it stays ?topped off? and ready. If one of your stock tanks stays wet year-round, you can simply lay a suction line with a foot valve into the middle of the pond...

  19. Large Magnetization at Carbon Surfaces

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

    Large Magnetization at Carbon Surfaces Large Magnetization at Carbon Surfaces Print Wednesday, 31 August 2011 00:00 From organic matter to pencil lead, carbon is a versatile...

  20. Effects of Volcanism, Crustal Thickness, and Large Scale Faulting...

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

    Effects of Volcanism, Crustal Thickness, and Large Scale Faulting on the Development and Evolution of Geothermal Systems: Collaborative Project in Chile Effects of Volcanism,...

  1. Oregon Underground Injection Control Program Authorized Injection Systems

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio Program | Open EnergyInformationSiting Process

  2. This is the author's version of a work that was submitted/accepted for pub-lication in the following source

    E-Print Network [OSTI]

    Liang, Huizhi "Elly"

    in the published article) Author 1 Name: Sirous Panahi Role: PhD student Department: Information Systems University

  3. PP-22 British Columbia Hydro and Power Authority, Amendment 1967...

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

    PP-22 British Columbia Hydro and Power Authority, Amendment 1967 PP-22 British Columbia Hydro and Power Authority, Amendment 1967 Presidential permit authorizing British Columbia...

  4. The Lichens of Aton Forest, Connecticut Author(s): Mason E. Hale, Jr.

    E-Print Network [OSTI]

    LeTourneau, Peter M.

    The Lichens of Aton Forest, Connecticut Author(s): Mason E. Hale, Jr. Source: The Bryologist, Vol OF ATON FOREST THE LICHENS OF ATON FOREST, CONNECTICUT MASONE. HALE, JR. INTRODUCTION During the summer, CONNECTICUT MASONE. HALE, JR. INTRODUCTION During the summer of 1949 the author studied the lichens of Aton

  5. Distributed Termination Detection for Dynamic Systems

    E-Print Network [OSTI]

    Dhamdhere, Dhananjay Madhav

    systems, Termination detection. \\Lambda Address all correspondence to this author. 1 #12; Distributed

  6. How large is 'large N{sub c}' for nuclear matter?

    SciTech Connect (OSTI)

    Torrieri, G. Mishustin, I.

    2012-06-15

    We argue that a so far neglected dimensionless scale, the number of neighbors in a closely packed system, is relevant for the convergence of the large-N{sub c} expansion at high chemical potential. It is only when the number of colors is large w.r.t. this new scale ({approx} O(10)) that a convergent large-N{sub c} limit is reached. This provides an explanation as to why the large-N{sub c} expansion, qualitatively successful in vacuum QCD, fails to describe high baryo-chemical potential systems, such as nuclear matter. It also means that phenomenological claims about high-density matter based on large-N{sub c} extrapolations should be treated with caution. This work is based on [1].

  7. Delegation as Officially Designated Federal Security Authority...

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

    Status: Current Effective Date: Sep 27, 2012 Re-delegation Allowed: No Authorities: DOE O 473.3 Related History Related to: DOE O 473.3, Protection Program Operations There...

  8. Safety Management Functions, Responsibilities, and Authorities Manual

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

    2003-12-31

    This Manual defines safety management functions, responsibilities, and authorities for DOE senior management with responsibilities for line, support, oversight, and enforcement actions. Cancels DOE M 411.1-1B. Canceled by DOE O 450.2.

  9. Safety Management Functions, Responsibilities, and Authorities Manual

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

    1997-10-08

    This Manual defines safety management functions, responsibilities, and authorities for DOE senior management with responsibilities for line, support, oversight, and enforcement actions. Canceled by DOE M 411.1-1A. Does not cancel other directives.

  10. Shared Authority Concerns in Automated Driving Applications

    E-Print Network [OSTI]

    Cummings, M.L.

    2014-05-13

    Given the move toward driverless cars, which includes the more short-term goal of driving assistance, what the appropriate shared authority and interaction paradigms should be between human drivers and the automation remains ...

  11. Safety Management Functions, Responsibilities, and Authorities

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

    2001-05-22

    This Manual provides the responsibilities of Headquarters and field element offices required by DOE P 411.1, Safety Management Functions, Responsibilities and Authorities Policy, dated 1-28-97. It also contains detailed requirements to supplement the policy's direction for each DOE organization having safety management functions to establish and maintain separate documentation of their responsibilities and authorities. Cancels DOE M 411.1-1A. Canceled by DOE M 411.1-1C.

  12. Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud

    E-Print Network [OSTI]

    Cortes, Corinna

    Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud Arnar,ataly,mvrable,mzero}@google.com Abstract--Controlled sharing is fundamental to distributed systems; yet, on the Web, and in the Cloud introduces macaroons: flexible authorization cre- dentials for Cloud services that support decentralized

  13. Ris-R-Report Power fluctuations from large wind farms -

    E-Print Network [OSTI]

    Abstract (max. 2000 char.): Experience from power system operation with the first large offshore wind farm acquired at the two large offshore wind farms in Denmark are applied to validate the models. FinallyRisø-R-Report Power fluctuations from large wind farms - Final report Poul Sørensen, Pierre Pinson

  14. Identification and Tracking of Parameters for a Large Synchronous Generator

    E-Print Network [OSTI]

    Identification and Tracking of Parameters for a Large Synchronous Generator Final Project Report and Tracking of Parameters for a Large Synchronous Generator Final Project Report G. T. Heydt, Project Leader for a Large Synchronous Generator 1. Introduction The power system state estimation problem ha

  15. Large scale tracking algorithms.

    SciTech Connect (OSTI)

    Hansen, Ross L.; Love, Joshua Alan; Melgaard, David Kennett; Karelitz, David B.; Pitts, Todd Alan; Zollweg, Joshua David; Anderson, Dylan Z.; Nandy, Prabal; Whitlow, Gary L.; Bender, Daniel A.; Byrne, Raymond Harry

    2015-01-01

    Low signal-to-noise data processing algorithms for improved detection, tracking, discrimination and situational threat assessment are a key research challenge. As sensor technologies progress, the number of pixels will increase signi cantly. This will result in increased resolution, which could improve object discrimination, but unfortunately, will also result in a significant increase in the number of potential targets to track. Many tracking techniques, like multi-hypothesis trackers, suffer from a combinatorial explosion as the number of potential targets increase. As the resolution increases, the phenomenology applied towards detection algorithms also changes. For low resolution sensors, "blob" tracking is the norm. For higher resolution data, additional information may be employed in the detection and classfication steps. The most challenging scenarios are those where the targets cannot be fully resolved, yet must be tracked and distinguished for neighboring closely spaced objects. Tracking vehicles in an urban environment is an example of such a challenging scenario. This report evaluates several potential tracking algorithms for large-scale tracking in an urban environment.

  16. Large forging manufacturing process

    DOE Patents [OSTI]

    Thamboo, Samuel V. (Latham, NY); Yang, Ling (Niskayuna, NY)

    2002-01-01

    A process for forging large components of Alloy 718 material so that the components do not exhibit abnormal grain growth includes the steps of: a) providing a billet with an average grain size between ASTM 0 and ASTM 3; b) heating the billet to a temperature of between 1750.degree. F. and 1800.degree. F.; c) upsetting the billet to obtain a component part with a minimum strain of 0.125 in at least selected areas of the part; d) reheating the component part to a temperature between 1750.degree. F. and 1800.degree. F.; e) upsetting the component part to a final configuration such that said selected areas receive no strains between 0.01 and 0.125; f) solution treating the component part at a temperature of between 1725.degree. F. and 1750.degree. F.; and g) aging the component part over predetermined times at different temperatures. A modified process achieves abnormal grain growth in selected areas of a component where desirable.

  17. This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research

    E-Print Network [OSTI]

    to the author for internal non-commercial research and education use, including for instruction at the authors applications (small and large scale water heating) and solar power plants for electricity production of large- scale application of solar energy for water heating and electricity generation in Brazil. Payback

  18. Paying for transit operations : challenges and solutions for the Chicago Transit Authority

    E-Print Network [OSTI]

    Kirschbaum, Julie B

    2004-01-01

    This research identifies the challenges Chicagoland must confront to maintain a quality transit system. It analyzes the organizational and funding structure of the Regional Transportation Authority and its three service ...

  19. Towards a deployable framework for delegation of authority in network applications

    E-Print Network [OSTI]

    Stockwell, Will (Will C.)

    2006-01-01

    The Delegation Framework is a collection of programs, network protocols and library interfaces that provide fine-grained delegation of authority to network systems. The design and implementation of the Delegation Framework ...

  20. State authority in an expanded territorial sea 

    E-Print Network [OSTI]

    Fulbright, Michael Gene

    1977-01-01

    . , University of West Florida Chairman of Advisory Committee: John L. Seymour The purpose of this thesis was to examine what types of state authority would extend to an expanded area of the territorial sea. This thesis first exa- mines the historical... miles ioso 82 facto for any Gulf State. State boundaries were to be determined by the historic action taken with respect to them jointly by Congress and the state itself. The authors of the SLA intended that such joint action wou~M fix the states...

  1. Method for large and rapid terahertz imaging

    DOE Patents [OSTI]

    Williams, Gwyn P.; Neil, George R.

    2013-01-29

    A method of large-scale active THz imaging using a combination of a compact high power THz source (>1 watt), an optional optical system, and a camera for the detection of reflected or transmitted THz radiation, without the need for the burdensome power source or detector cooling systems required by similar prior art such devices. With such a system, one is able to image, for example, a whole person in seconds or less, whereas at present, using low power sources and scanning techniques, it takes several minutes or even hours to image even a 1 cm.times.1 cm area of skin.

  2. Approved for Public Release, Distribution Unlimited Flexible and large area electronics (macroelectronics) using

    E-Print Network [OSTI]

    Alam, Muhammad A.

    Approved for Public Release, Distribution Unlimited 1 Flexible and large area electronics high performance applications to include RF systems. Keywords--Flexible electronics, large area electronics, macroelectronics, thin film transistors I. INTRODUCTION Flexible and large area electronics using

  3. Energy Resources and Convening Lead Author (CLA)

    E-Print Network [OSTI]

    Power S.p.A., Italy) S.C. Bhattacharya (International Energy Initiative, India) Maurice B. Dusseault (University of Waterloo, Canada) Luc Gagnon (HydroQuébec, Canada) Helmut Haberl (Klagenfurt University Leoben,Austria) Vladimir Yakushev (Gazprom, Russia) Contributing Authors (CA) Doug J. Arent (National

  4. Guide to Authors About the Journal

    E-Print Network [OSTI]

    Loss, Daniel

    nature physics Guide to Authors About the Journal Aims and scope of the journal Nature Physics. The journal content reflects core physics disciplines, but is also open to a broad range of topics whose to experiment, also features. Research areas covered in the journal include: · Quantum physics · Atomic

  5. Page 1 of 1 Author Query Form

    E-Print Network [OSTI]

    Utsunomiya, Satoshi

    ;A/Author phone: C;A/Title C;A/Department Department of Nuclear Engineering and Radiological Sciences C 48109-2104 C;A/Country U.S.A. C;A/Title C;A/Department Department of Nuclear Engineering, and Nuclear Engineering and Radiological Science C;A/Institution University of Michigan C;A/Street Address

  6. COMPARING THE VANCOUVER INTERNATIONAL AIRPORT AUTHORITY'S

    E-Print Network [OSTI]

    prescribed authorities to conduct environmental impact assessments (EIAs) of projects carried out on federal environmental management. The International Association for Impact Assessment's (IAIA) Principles for EIA Best if the proposed CEAA regulations come into force. Keywords: Environmental impact assessment; best practice

  7. Web Information Retrieval Author Preprint for Web

    E-Print Network [OSTI]

    Hawking, David

    indexes is often called `the hidden web', `the deep web', or `web dark matter' (Bailey et al., 2000). 2Web Information Retrieval Author Preprint for Web Nick Craswell and David Hawking 18 April 2009 1 Introduction This chapter outlines some distinctive characteristics of web information re- trieval, starting

  8. Intuitive Ontology Authoring using Controlled Natural Language

    E-Print Network [OSTI]

    Dimitrova, Vania

    in accordance with the requirements for the degree of Doctor of Philosophy University of Leeds School. 246-264. This paper was mostly written by me, and reviewed and improved by the other authors. ©2013 University of Leeds and Ronald Denaux #12;to... domain experts, I suppose. #12;Acknowledgements My

  9. Reconsidering Authority Scientific Expertise, Bounded Rationality,

    E-Print Network [OSTI]

    Strevens, Michael

    , perhaps, but disastrous for us, living in this world in which almost all information about anything sources; rather, we should give it special treatment, keeping track of it even after we have extracted of that authority. I will search for a semiformal model of epistemic backtracking, a model formal enough

  10. Large volume flow-through scintillating detector

    DOE Patents [OSTI]

    Gritzo, Russ E. (Los Alamos, NM); Fowler, Malcolm M. (Los Alamos, NM)

    1995-01-01

    A large volume flow through radiation detector for use in large air flow situations such as incinerator stacks or building air systems comprises a plurality of flat plates made of a scintillating material arranged parallel to the air flow. Each scintillating plate has a light guide attached which transfers light generated inside the scintillating plate to an associated photomultiplier tube. The output of the photomultiplier tubes are connected to electronics which can record any radiation and provide an alarm if appropriate for the application.

  11. The Evolution of Science Museums Author(s): Silvio A. Bedini

    E-Print Network [OSTI]

    Short, Daniel

    University Press on behalf of the Society for the History of Technology Stable URL: http@jstor.org. . Society for the History of Technology and The Johns Hopkins University Press are collaborating with JSTORThe Evolution of Science Museums Author(s): Silvio A. Bedini Reviewed work(s): Source: Technology

  12. Storage Operators and Directed Lambda-Calculus Author(s): Rene David and Karim Nour

    E-Print Network [OSTI]

    Nour, Karim

    Storage Operators and Directed Lambda-Calculus Author(s): Rene David and Karim Nour Source, December 1995 STORAGE OPERATORS AND DIRECTED LAMBDA-CALCULUS RENE DAVID AND KARIM NOUR Abstract. Storage. With this calculus we get an equivalent-and simple-definition of the storage operators that allows to show some

  13. Deriving Morality from Politics: Rethinking the Formula of Humanity Author(s): Japa Pallikkathayil

    E-Print Network [OSTI]

    Machery, Edouard

    Deriving Morality from Politics: Rethinking the Formula of Humanity Author(s): Japa Pallikkathayil-1704/2010/12101-0001$10.00 116 Deriving Morality from Politics: Rethinking the Formula of Humanity* Japa Pallikkathayil Kant's Formula of Humanity famously forbids treating others merely as a means. It is unclear, however, what

  14. Rainbow Trout Production in Dystrophic Lakes Author(s): Waldo E. Johnson and Arthur D. Hasler

    E-Print Network [OSTI]

    Notre Dame, University of

    Rainbow Trout Production in Dystrophic Lakes Author(s): Waldo E. Johnson and Arthur D. Hasler://www.jstor.org #12;RAINBOW TROUT PRODUCTION IN DYSTROPHIC LAKES1 Waldo E. Johnson and Arthur D. Hasler Department, and it is well known that these small lakes contribute very little to the sport fishery of this area

  15. Carbon Dioxide Evolution from the Floor of Three Minnesota Forests Author(s): W. A. Reiners

    E-Print Network [OSTI]

    Thomas, David D.

    Carbon Dioxide Evolution from the Floor of Three Minnesota Forests Author(s): W. A. Reiners and extend access to Ecology. http://www.jstor.org #12;Late Spring 1968 CARBON DIOXIDE EVOLUTION RATES 471. Germination behavior of some halc- phytes. Bull. Res. Council Israel (D) 6: 187-188. CARBON DIOXIDE EVOLUTION

  16. Buy Coal! A Case for Supply-Side Environmental Policy Author(s): Brd Harstad

    E-Print Network [OSTI]

    Stølen, Ketil

    Buy Coal! A Case for Supply-Side Environmental Policy Author(s): Bård Harstad Reviewed work by The University of Chicago. All rights reserved. 0022-3808/2012/12001-0003$10.00 Buy Coal! A Case for Supply, world prices change and nonpartici- pants typically emit more; they may also extract the dirtiest type

  17. Journal of Philosophy, Inc. Author(s): Alan Ross Anderson and Nuel D. Belnap, Jr.

    E-Print Network [OSTI]

    Belnap, Nuel

    Journal of Philosophy, Inc. Enthymemes Author(s): Alan Ross Anderson and Nuel D. Belnap, Jr. Source: The Journal of Philosophy, Vol. 58, No. 23, American Philosophical Association Eastern Division Fifty: Journal of Philosophy, Inc. Stable URL: http://www.jstor.org/stable/2023169 Accessed: 28/05/2009 15

  18. Natural and Experimental Boudinage and Pinch-and-Swell Structures Author(s): Hans Ramberg

    E-Print Network [OSTI]

    Lee, Cin-Ty Aeolus

    Natural and Experimental Boudinage and Pinch-and-Swell Structures Author(s): Hans Ramberg Source, and build upon a wide range of content in a trusted digital archive. We use information technology and tools BOUDINAGE AND PINCH-AND-SWELL STRUCTURES1 HANS RAMBERG University of Chicago ABSTRACT Examples of boudinage

  19. Multivariate Analysis of Drosophila Courtship Author(s): Therese A. Markow and Stephen J. Hanson

    E-Print Network [OSTI]

    Markow, Therese

    Multivariate Analysis of Drosophila Courtship Author(s): Therese A. Markow and Stephen J. Hanson.Natl.Acad.Sci.USA Vol. 78, No. 1, pp. 430-434, January1981 Genetics Multivariate analysis of Drosophila (sequential%). Potential ap- plications of this multivariate analysis to investigations of neuro- biological

  20. Natural Selection and Culture Author(s): Peter J. Richerson and Robert Boyd

    E-Print Network [OSTI]

    Richerson, Peter J.

    Natural Selection and Culture Author(s): Peter J. Richerson and Robert Boyd Source: BioScience, Vol indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/page/info the discovery and use of these resources. For more information about JSTOR, please contact support

  1. A. E. K.Ris Ris-M-Dl^ Title and author(s)

    E-Print Network [OSTI]

    A. E. K.Risø Risø-M-Dl^ Title and author(s) Application of Statistical Linear El -it:tic Fracture illustrations Date October 1 -}? $ Department or group R e a c t o r Group's own registration number(s) 25 crack, same time and ated as statisti- ty functions, tial cracks, f failure prob- program utilizing ce

  2. On Stress and Linguistic Rhythm Author(s): Mark Liberman and Alan Prince

    E-Print Network [OSTI]

    Pennsylvania, University of

    On Stress and Linguistic Rhythm Author(s): Mark Liberman and Alan Prince Source: Linguistic Inquiry-336. Mark Liberman, On Stress and Linguistic Alan Prince Rhythm* 0. Prospectus In this essay a new theory to JSTOR Terms and Conditions #12;250 MARK LIBERMAN AND ALAN PRINCE patternsof stress in termsof

  3. Pedestrian Travel Analysis Using Static Bluetooth Sensors Yegor Malinovskiy (Corresponding Author)

    E-Print Network [OSTI]

    Washington at Seattle, University of

    1 Pedestrian Travel Analysis Using Static Bluetooth Sensors Yegor Malinovskiy (Corresponding Author and large scale behavior studies. An automated, cost-effective approach to acquiring pedestrian data presents an opportunity to use the same technology for pedestrian travel analysis. However, people

  4. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILITY

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback SystemGimbaled X-Ray Head (JournalSciTechAUTHORS SUBJECT

  5. IDC System Specification Document.

    SciTech Connect (OSTI)

    Clifford, David J.

    2014-12-01

    This document contains the system specifications derived to satisfy the system requirements found in the IDC System Requirements Document for the IDC Reengineering Phase 2 project. Revisions Version Date Author/Team Revision Description Authorized by V1.0 12/2014 IDC Reengineering Project Team Initial delivery M. Harris

  6. Virtual control system environment: A modeling and simulation tool for process control systems

    SciTech Connect (OSTI)

    Lee, E.; Michalski, J.; Sholander, P.; Van Leeuwen, B. [Sandia National Laboratories, Albuquerque, NM 87111 (United States)

    2006-07-01

    The development of tools and techniques for security testing and performance testing of Process Control Systems (PCS) is needed since those systems are vulnerable to the same classes of threats as other networked computer systems. In practice, security testing is difficult to perform on operational PCS because it introduces an unacceptable risk of disruption to the critical systems (e.g., power grids) that they control. In addition, the hardware used in PCS is often expensive, making full-scale mockup systems for live experiments impractical. A more flexible approach to these problems can be provided through test beds that provide the proper mix of real, emulated, and virtual elements to model large, complex systems such as critical infrastructures. This paper describes a 'Virtual Control System Environment' that addresses these issues. (authors)

  7. Author Index Abezgauz, Ludmila P1

    E-Print Network [OSTI]

    Martin, Jan M.L.

    Author Index Abezgauz, Ludmila P1 Abu-Reziq, Raed S1b3 Abutbul, Inbal P130 Adadi, Racheli P2 Addadi, Lia S2c5, P67, P123, P129, P159, P182 Adler, Michal P69 Afri, Michal P3, P26, P38 Agmon, Noam P131 Aharoni, Anna P4 Aharonov, Yakir P106 Akiva, Udi S4c1 Albeck, Amnon S1c5, P5 Albu-Yaron, Ana P210

  8. Evaluating the Web Hubs and Authorities

    E-Print Network [OSTI]

    Ullman, Jeffrey D.

    1 Evaluating the Web PageRank Hubs and Authorities #12;2 PageRank Intuition: solve the recursive = the principal eigenvector of the stochastic matrix of the Web. A few fixups needed. #12;3 Stochastic Matrix of the Web Enumerate pages. Page i corresponds to row and column i. M [i,j ] = 1/n if page j links to n pages

  9. Secure multi-party communication with quantum key distribution managed by trusted authority

    DOE Patents [OSTI]

    Nordholt, Jane Elizabeth; Hughes, Richard John; Peterson, Charles Glen

    2013-07-09

    Techniques and tools for implementing protocols for secure multi-party communication after quantum key distribution ("QKD") are described herein. In example implementations, a trusted authority facilitates secure communication between multiple user devices. The trusted authority distributes different quantum keys by QKD under trust relationships with different users. The trusted authority determines combination keys using the quantum keys and makes the combination keys available for distribution (e.g., for non-secret distribution over a public channel). The combination keys facilitate secure communication between two user devices even in the absence of QKD between the two user devices. With the protocols, benefits of QKD are extended to multi-party communication scenarios. In addition, the protocols can retain benefit of QKD even when a trusted authority is offline or a large group seeks to establish secure communication within the group.

  10. QUENCHES IN LARGE SUPERCONDUCTING MAGNETS

    E-Print Network [OSTI]

    Eberhard, P.H.

    2010-01-01

    QUENCHES IN LARGE SUPERCONDUCTING MAGNETS. P. H. Eberhard,Study of an Unprotected Superconducting Coil Going Normal,"Method for Testing Superconducting Magnets," LBL Physics

  11. The International Large Detector: Letter of Intent

    E-Print Network [OSTI]

    Abe, Toshinori; Abramowicz, Halina; Adamus, Marek; Adeva, Bernardo; Afanaciev, Konstantin; Aguilar-Saavedra, Juan Antonio; Alabau Pons, Carmen; Albrecht, Hartwig; Andricek, Ladislav; Anduze, Marc; Aplin, Steve J.; Arai, Yasuo; Asano, Masaki; Attie, David; Attree, Derek J.; Burger, Jochen; Bailey, David; Balbuena, Juan Pablo; Ball, Markus; Ballin, James; Barbi, Mauricio; Barlow, Roger; Bartels, Christoph; Bartsch, Valeria; Bassignana, Daniela; Bates, Richard; Baudot, Jerome; Bechtle, Philip; Beck, Jeannine; Beckmann, Moritz; Bedjidian, Marc; Behnke, Ties; Belkadhi, Khaled; Bellerive, Alain; Bentvelsen, Stan; Bergauer, Thomas; Berggren, C.Mikael U.; Bergholz, Matthias; Bernreuther, Werner; Besancon, Marc; Besson, Auguste; Bhattacharya, Sudeb; Bhuyan, Bipul; Biebel, Otmar; Bilki, Burak; Blair, Grahame; Blumlein, Johannes; Bo, Li; Boisvert, Veronique; Bondar, A.; Bonvicini, Giovanni; Boos, Eduard; Boudry, Vincent; Bouquet, Bernard; Bouvier, Joel; Bozovic-Jelisavcic, Ivanka; Brient, Jean-Claude; Brock, Ian; Brogna, Andrea; Buchholz, Peter; Buesser, Karsten; Bulgheroni, Antonio; Butler, John; Buttar, Craig; Buzulutskov, A.F.; Caccia, Massimo; Caiazza, Stefano; Calcaterra, Alessandro; Caldwell, Allen; Callier, Stephane L.C.; Calvo Alamillo, Enrique; Campbell, Michael; Campbell, Alan J.; Cappellini, Chiara; Carloganu, Cristina; Castro, Nuno; Castro Carballo, Maria Elena; Chadeeva, Marina; Chakraborty, Dhiman; Chang, Paoti; Charpy, Alexandre; Chen, Xun; Chen, Shaomin; Chen, Hongfang; Cheon, Byunggu; Choi, Suyong; Choudhary, B.C.; Christen, Sandra; Ciborowski, Jacek; Ciobanu, Catalin; Claus, Gilles; Clerc, Catherine; Coca, Cornelia; Colas, Paul; Colijn, Auke; Colledani, Claude; Combaret, Christophe; Cornat, Remi; Cornebise, Patrick; Corriveau, Francois; Cvach, Jaroslav; Czakon, Michal; D'Ascenzo, Nicola; Da Silva, Wilfrid; Dadoun, Olivier; Dam, Mogens; Damerell, Chris; Danilov, Mikhail; Daniluk, Witold; Daubard, Guillaume; David, Dorte; David, Jacques; De Boer, Wim; De Groot, Nicolo; De Jong, Sijbrand; De Jong, Paul; De La Taille, Christophe; De Masi, Rita; De Roeck, Albert; Decotigny, David; Dehmelt, Klaus; Delagnes, Eric; Deng, Zhi; Desch, Klaus; Dieguez, Angel; Diener, Ralf; Dima, Mihai-Octavian; Dissertori, Gunther; Dixit, Madhu S.; Dolezal, Zdenek; Dolgoshein, Boris A.; Dollan, Ralph; Dorokhov, Andrei; Doublet, Philippe; Doyle, Tony; Doziere, Guy; Dragicevic, Marko; Drasal, Zbynek; Drugakov, Vladimir; Duarte Campderros, Jordi; Dulucq, Frederic; Dumitru, Laurentiu Alexandru; Dzahini, Daniel; Eberl, Helmut; Eckerlin, Guenter; Ehrenfeld, Wolfgang; Eigen, Gerald; Eklund, Lars; Elsen, Eckhard; Elsener, Konrad; Emeliantchik, Igor; Engels, Jan; Evrard, Christophe; Fabbri, Riccardo; Faber, Gerard; Faucci Giannelli, Michele; Faus-Golfe, Angeles; Feege, Nils; Feng, Cunfeng; Ferencei, Jozef; Fernandez Garcia, Marcos; Filthaut, Frank; Fleck, Ivor; Fleischer, Manfred; Fleta, Celeste; Fleury, Julien L.; Fontaine, Jean-Charles; Foster, Brian; Fourches, Nicolas; Fouz, Mary-Cruz; Frank, Sebastian; Frey, Ariane; Frotin, Mickael; Fujii, Hirofumi; Fujii, Keisuke; Fujimoto, Junpei; Fujita, Yowichi; Fusayasu, Takahiro; Fuster, Juan; Gaddi, Andrea; Gaede, Frank; Galkin, Alexei; Galkin, Valery; Gallas, Abraham; Gallin-Martel, Laurent; Gamba, Diego; Gao, Yuanning; Garrido Beltran, Lluis; Garutti, Erika; Gastaldi, Franck; Gaur, Bakul; Gay, Pascal; Gellrich, Andreas; Genat, Jean-Francois; Gentile, Simonetta; Gerwig, Hubert; Gibbons, Lawrence; Ginina, Elena; Giraud, Julien; Giraudo, Giuseppe; Gladilin, Leonid; Goldstein, Joel; Gonzalez Sanchez, Francisco Javier; Gournaris, Filimon; Greenshaw, Tim; Greenwood, Z.D.; Grefe, Christian; Gregor, Ingrid-Maria; Grenier, Gerald Jean; Gris, Philippe; Grondin, Denis; Grunewald, Martin; Grzelak, Grzegorz; Gurtu, Atul; Haas, Tobias; Haensel, Stephan; Hajdu, Csaba; Hallermann, Lea; Han, Liang; Hansen, Peter H.; Hara, Takanori; Harder, Kristian; Hartin, Anthony; Haruyama, Tomiyoshi; Harz, Martin; Hasegawa, Yoji; Hauschild, Michael; He, Qing; Hedberg, Vincent; Hedin, David; Heinze, Isa; Helebrant, Christian; Henschel, Hans; Hensel, Carsten; Hertenberger, Ralf; Herve, Alain; Higuchi, Takeo; Himmi, Abdelkader; Hironori, Kazurayama; Hlucha, Hana; Hommels, Bart; Horii, Yasuyuki; Horvath, Dezso; Hostachy, Jean-Yves; Hou, Wei-Shu; Hu-Guo, Christine; Huang, Xingtao; Huppert, Jean Francois; Ide, Yasuhiro; Idzik, Marek; Iglesias Escudero, Carmen; Ignatenko, Alexandr; Igonkina, Olga; Ikeda, Hirokazu; Ikematsu, Katsumasa; Ikemoto, Yukiko; Ikuno, Toshinori; Imbault, Didier; Imhof, Andreas; Imhoff, Marc; Ingbir, Ronen; Inoue, Eiji

    2010-01-01

    The International Large Detector (ILD) is a concept for a detector at the International Linear Collider, ILC. The ILC will collide electrons and positrons at energies of initially 500 GeV, upgradeable to 1 TeV. The ILC has an ambitious physics program, which will extend and complement that of the Large Hadron Collider (LHC). A hallmark of physics at the ILC is precision. The clean initial state and the comparatively benign environment of a lepton collider are ideally suited to high precision measurements. To take full advantage of the physics potential of ILC places great demands on the detector performance. The design of ILD is driven by these requirements. Excellent calorimetry and tracking are combined to obtain the best possible overall event reconstruction, including the capability to reconstruct individual particles within jets for particle ow calorimetry. This requires excellent spatial resolution for all detector systems. A highly granular calorimeter system is combined with a central tracker which st...

  12. Contact-Handled Transuranic Waste Authorized Methods for Payload...

    Office of Environmental Management (EM)

    Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH TRAMPAC) Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH TRAMPAC) This...

  13. Energy Department Authorizes Dominion Cove Point LNG to Export...

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

    Energy Department Authorizes Dominion Cove Point LNG to Export Liquefied Natural Gas Energy Department Authorizes Dominion Cove Point LNG to Export Liquefied Natural Gas May 7,...

  14. Energy Department Authorizes Freeport LNG to Export Liquefied...

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

    Department Authorizes Freeport LNG to Export Liquefied Natural Gas Energy Department Authorizes Freeport LNG to Export Liquefied Natural Gas November 14, 2014 - 2:00pm Addthis News...

  15. Energy Department Authorizes Second Proposed Facility to Export...

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

    Energy Department Authorizes Second Proposed Facility to Export Liquefied Natural Gas Energy Department Authorizes Second Proposed Facility to Export Liquefied Natural Gas May 17,...

  16. Energy Department Authorizes Emera CNG, LLC's Application to...

    Office of Environmental Management (EM)

    Authorizes Emera CNG, LLC's Application to Export Compressed Natural Gas Energy Department Authorizes Emera CNG, LLC's Application to Export Compressed Natural Gas October 19, 2015...

  17. Orders Granting Natural Gas, LNG & CNG Authorizations Issued...

    Office of Environmental Management (EM)

    Orders Granting Natural Gas, LNG & CNG Authorizations Issued in 2014 Orders Granting Natural Gas, LNG & CNG Authorizations Issued in 2014 Order 3378 - Encana Natural Gas Inc. Order...

  18. Project Reports for Peoria Tribe: Housing Authority- 2010 Project

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Housing Authority of the Peoria Tribe of Indians of Oklahoma (Peoria Housing Authority or PHA) will conduct the "PHA Weatherization Training Project."

  19. Presidential Permits and Export Authorizations - About the Program...

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

    transmission lines which cross the U.S. international border; and 2.Authorizing exports of electric energy to foreign countries. The authority to grant Presidential permits...

  20. POLICY GUIDANCE MEMORANDUM #09A Direct Hire Authority for Acquisition...

    Office of Environmental Management (EM)

    09A Direct Hire Authority for Acquisition Positions (Expired) POLICY GUIDANCE MEMORANDUM 09A Direct Hire Authority for Acquisition Positions (Expired) THIS GUIDANCE HAS EXPIRED...

  1. POLICY GUIDANCE MEMORANDUM #02 Using Schedule A Hiring Authority...

    Office of Environmental Management (EM)

    02 Using Schedule A Hiring Authority for ARRA Positions (Expired) POLICY GUIDANCE MEMORANDUM 02 Using Schedule A Hiring Authority for ARRA Positions (Expired) THIS GUIDANCE HAS...

  2. Santa Clara Valley Transportation Authority and San Mateo County...

    Energy Savers [EERE]

    Santa Clara Valley Transportation Authority and San Mateo County Transit District -- Fuel Cell Transit Buses: Evaluation Results Santa Clara Valley Transportation Authority and San...

  3. Cooperation Among Balancing Authorities Offers Greater Use of...

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

    Cooperation Among Balancing Authorities Offers Greater Use of Renewable Energy with Lower Integration Costs Cooperation Among Balancing Authorities Offers Greater Use of Renewable...

  4. Author's personal copy The Lago Cardiel Basin, Argentina (49S): Origin and evolution

    E-Print Network [OSTI]

    Gilli, Adrian

    Author's personal copy The Lago Cardiel Basin, Argentina (49°S): Origin and evolution revealed with an airgun source in the closed lake system of Lago Cardiel, Argentina (49°S). As part of an ongoing study reflection surveys in the closed lake system of Lago Cardiel, Argentina (Fig. 1), with 3.5-kHz and boomer

  5. Long Island Power Authority | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona:Oregon: EnergyLloyd, NewBranch Capital Jump to:Authority Jump to:

  6. Lower Colorado River Authority | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona:Oregon:Lowell Point, Alaska: Energy ResourcesAuthority Jump to:

  7. Municipal Electric Authority | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to: navigation,Mereg GmbHMontebalitoMt Princeton HotMultilagosAuthority

  8. Tennessee Valley Authority (Kentucky) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter BatterySolarfinMarketMemberI PLLCsourceValley Authority (Kentucky)

  9. Bolivar Energy Authority | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-GasIllinois:Energy Authority Jump to: navigation, search

  10. Property:Author | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2,Information PromotingProperty EditAuthor Jump to:

  11. Property:Authority | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2,Information PromotingProperty EditAuthor Jump

  12. Property:File/Author | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit withExplorationTimePerMetricProperty EditAuthor

  13. Technology Partnership Ombudsman - Roles, Responsibilities, Authorities and

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OF APPLICABLEStatutory Authority J-I- 1May 20062012

  14. NercEnergy, Author at Nercenergy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesofPublications TheScience4.21 4.43EnergyAuthor: NercEnergy

  15. Lessons from Large-Scale Renewable Energy Integration Studies: Preprint

    SciTech Connect (OSTI)

    Bird, L.; Milligan, M.

    2012-06-01

    In general, large-scale integration studies in Europe and the United States find that high penetrations of renewable generation are technically feasible with operational changes and increased access to transmission. This paper describes other key findings such as the need for fast markets, large balancing areas, system flexibility, and the use of advanced forecasting.

  16. MULTIPLE AUTHORIZATION A Model and Architecture for Increased, Practical Security

    E-Print Network [OSTI]

    ]. Contraction-Minimal triangulations are called minimal or irreducible triangu- lations by various authors. 1

  17. 168 Hinweise fr die Autoren Instructions to Authors

    E-Print Network [OSTI]

    Wien, Universität

    in SMALL CAPITALS: SINGER (1964), KÜHNER & ROMAGNESI (1975), when more than two authors: SMITH & al. (1982

  18. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLakeLanguage of aLargeLargeLarge

  19. Coherent control of dipolar coupled spins in large Hilbert spaces

    E-Print Network [OSTI]

    Sinha, Suddhasattwa

    2006-01-01

    Controlling the dynamics of a dipolar-coupled spin system is critical to the development of solid-state spin-based quantum information processors. Such control remains challenging, as every spin is coupled to a large number ...

  20. Aalborg Universitet Transient studies in large offshore wind farms, taking into account network/circuit

    E-Print Network [OSTI]

    Bak, Claus Leth

    Aalborg Universitet Transient studies in large offshore wind farms, taking into account network as well as Transmission Networks for Offshore Wind Farms Publication date: 2011 Document Version Author in large offshore wind farms, taking into account network/circuit breaker interaction. In Proceedings

  1. System architecture of offshore oil production systems

    E-Print Network [OSTI]

    Keller, James (James Thomas)

    2008-01-01

    This thesis presents an approach to applying Systems Architecture methods to the development of large, complex, commercial systems, particularly offshore oil and gas productions systems. The aim of this research was to ...

  2. Large-scale pool fires 

    E-Print Network [OSTI]

    Steinhaus, Thomas; Welch, Stephen; Carvel, Ricky O; Torero, Jose L

    2007-03-29

    A review of research into the burning behaviour of large pool fires and fuel spill fires is presented. The features which distinguish such fires from smaller pool fires are mainly associated with the fire dynamics at low ...

  3. Large Magnetization at Carbon Surfaces

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

    Large Magnetization at Carbon Surfaces Print From organic matter to pencil lead, carbon is a versatile element. Now, another use has been found: magnets. One would not expect pure...

  4. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS 1

    E-Print Network [OSTI]

    Luk, Wayne

    developer man hours and CPU time. While it is possible to construct all possible generators ahead of time) SYSTEMS 1 The LUT-SR Family of Uniform Random Number Generators for FPGA Architectures David B. Thomas number generators (RNGs) are more resource-efficient than software-optimized RNGs because they can take

  5. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS 1

    E-Print Network [OSTI]

    Pedram, Massoud

    -power/energy capacity, low-cost, and long-cycle life. A hybrid EES system (HEES) consists of two or more heterogeneous optimization. We first define the charge migration architecture and the corresponding charge migration optimiza.S. National Science Foundation, in part by the Brain Korea 21 Project, in part by the National Research

  6. Large Bore Powder Gun Qualification (U)

    SciTech Connect (OSTI)

    Rabern, Donald A.; Valdiviez, Robert

    2012-04-02

    A Large Bore Powder Gun (LBPG) is being designed to enable experimentalists to characterize material behavior outside the capabilities of the NNSS JASPER and LANL TA-55 PF-4 guns. The combination of these three guns will create a capability to conduct impact experiments over a wide range of pressures and shock profiles. The Large Bore Powder Gun will be fielded at the Nevada National Security Site (NNSS) U1a Complex. The Complex is nearly 1000 ft below ground with dedicated drifts for testing, instrumentation, and post-shot entombment. To ensure the reliability, safety, and performance of the LBPG, a qualification plan has been established and documented here. Requirements for the LBPG have been established and documented in WE-14-TR-0065 U A, Large Bore Powder Gun Customer Requirements. The document includes the requirements for the physics experiments, the gun and confinement systems, and operations at NNSS. A detailed description of the requirements is established in that document and is referred to and quoted throughout this document. Two Gun and Confinement Systems will be fielded. The Prototype Gun will be used primarily to characterize the gun and confinement performance and be the primary platform for qualification actions. This gun will also be used to investigate and qualify target and diagnostic modifications through the life of the program (U1a.104 Drift). An identical gun, the Physics Gun, will be fielded for confirmatory and Pu experiments (U1a.102D Drift). Both guns will be qualified for operation. The Gun and Confinement System design will be qualified through analysis, inspection, and testing using the Prototype Gun for the majority of process. The Physics Gun will be qualified through inspection and a limited number of qualification tests to ensure performance and behavior equivalent to the Prototype gun. Figure 1.1 shows the partial configuration of U1a and the locations of the Prototype and Physics Gun/Confinement Systems.

  7. Active Optics in Modern, Large Optical Telescopes

    E-Print Network [OSTI]

    Lothar Noethe

    2001-11-07

    Active optics is defined as the control of the shape and the alignment of the components of an optical system at low temporal frequencies. For modern large telescopes with flexible monolithic or segmented primary mirrors and also flexible structures this technique is indispensable to reach a performance which is either diffraction limited for an operation in space or limited by the atmosphere for an operation on the ground. This article first describes the theory of active optics, both of the wavefront analysis and the correction mechanisms, then the design of three representative active optics systems, two in telescopes of the four and eight meter class with meniscus mirrors and one in a telescope with a segmented primary mirror, and, finally, presents practical experience with these active optics systems.

  8. Authorized limits for Fernald copper ingots

    SciTech Connect (OSTI)

    Frink, N.; Kamboj, S.; Hensley, J.; Chen, S. Y.

    1997-09-01

    This development document contains data and analysis to support the approval of authorized limits for the unrestricted release of 59 t of copper ingots containing residual radioactive material from the U.S. Department of Energy (DOE) Fernald Environmental Management Project (FEMP). The analysis presented in this document comply with the requirements of DOE Order 5400.5, {open_quotes}Radiation Protection of the Public and the Environment,{close_quotes} as well as the requirements of the proposed promulgation of this order as 10 CFR Part 834. The document was developed following the step-by-step process described in the Draft Handbook for Controlling Release for Reuse or Recycle Property Containing Residual Radioactive Material.

  9. TITLE: AUTHOR(S) SUBMITTED TO: Mm EVOLUTIO:l C: S!LICIC

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnicalInformation FederatedInformationTITLE: AUTHOR(S) SUBMITTED TO: Mm EVOLUTIO:l

  10. Supplement 8, Authors: A To Z 

    E-Print Network [OSTI]

    Doss, Mildred A.; Humphrey, Judith H.; Segal, Dorothy B.

    1958-01-01

    Multi-robot task assignment (allocation) involves assigning robots to tasks in order to optimize the entire team’s performances. Until now, one of the most useful non-domain-specific ways to coordinate multi-robot systems ...

  11. Universal anomalous dimensions at large spin and large twist

    E-Print Network [OSTI]

    Apratim Kaviraj; Kallol Sen; Aninda Sinha

    2015-06-09

    In this paper we consider anomalous dimensions of double trace operators at large spin ($\\ell$) and large twist ($\\tau$) in CFTs in arbitrary dimensions ($d\\geq 3$). Using analytic conformal bootstrap methods, we show that the anomalous dimensions are universal in the limit $\\ell\\gg \\tau\\gg 1$. In the course of the derivation, we extract an approximate closed form expression for the conformal blocks arising in the four point function of identical scalars in any dimension. We compare our results with two different calculations in holography and find perfect agreement.

  12. New York State Energy Research and Development Authority

    Office of Energy Efficiency and Renewable Energy (EERE)

    One of DOE's key partners is the New York State Energy Research and Development Authority (NYSERDA), which operates a successful combined heat and power (CHP) and clean distributed generation (DG) research, development, and deployment program. NYSERDA supports development and demonstration of CHP systems throughout all end-use sectors. It also collects and analyzes project performance data, conducts market studies, and supports the Northeast Clean Energy Application Center (CEAC). The NYSERDA-DOE partnership evaluates CHP project proposals and shares lessons learned through conferences, workshops, and other activities. This partnership has provided value to New York residents and to energy professionals across the country. NYSERDA projects have led to electric demand reduction, higher fuel efficiency, emissions reduction, lower energy costs, job creation, and increased product sales.

  13. Telemetry as a Technique in the Study of Predation Author(s): L. David Mech

    E-Print Network [OSTI]

    Thomas, David D.

    in this regard by Marshall and Kupa (1963). These authors were able to locate four predator- killed grouse (Bonasa umbellus) and deter- mine the type of predation in three cases. Recently McEwen and Brown (1966 in a collar of dental acrylic (Mech et al. 1965). They were re- leased where captured. Movements

  14. Large aperture optical switching devices

    SciTech Connect (OSTI)

    Goldhar, J.; Henesian, M.A.

    1983-12-12

    We have developed a new approach to constructing large aperture optical switches for next generation inertial confinement fusion lasers. A transparent plasma electrode formed in low pressure ionized gas acts as a conductive coating to allow the uniform charging of the optical faces of an electro-optic material. In this manner large electric fields can be applied longitudinally to large aperture, high aspect ratio Pockels cells. We propose a four-electrode geometry to create the necessary high conductivity plasma sheets, and have demonstrated fast (less than 10 nsec) switching in a 5x5 cm aperture KD*P Pockels cell with such a design. Detaid modelling of Pockels cell performance with plasma electrodes has been carried out for 15 and 30 cm aperture designs.

  15. A Reachability-Based Method for Large-Signal Behavior Verification of DC-DC Converters

    E-Print Network [OSTI]

    Liberzon, Daniel

    -loop, large-signal system behavior verification, and iv) switching detail modeling. In open-loop, large´inguez-Garc´ia, Member, IEEE Abstract--A method for large-signal behavior verification of power electronics DC behavior verification, lengthy time-domain simula- tions are conducted to analyze the system response

  16. Inflating with large effective fields

    SciTech Connect (OSTI)

    Burgess, C.P. [PH-TH Division, CERN, CH-1211, Genève 23 (Switzerland); Cicoli, M. [Dipartimento di Fisica e Astronomia, Università di Bologna, Via Irnerio 46, 40126 Bologna (Italy); Quevedo, F. [Abdus Salam ICTP, Strada Costiera 11, Trieste 34014 (Italy); Williams, M., E-mail: cburgess@perimeterinstitute.ca, E-mail: mcicoli@ictp.it, E-mail: f.quevedo@damtp.cam.ac.uk, E-mail: mwilliams@perimeterinsititute.ca [Department of Physics and Astronomy, McMaster University, 1280 Main Street West, Hamilton ON (Canada)

    2014-11-01

    We re-examine large scalar fields within effective field theory, in particular focussing on the issues raised by their use in inflationary models (as suggested by BICEP2 to obtain primordial tensor modes). We argue that when the large-field and low-energy regimes coincide the scalar dynamics is most effectively described in terms of an asymptotic large-field expansion whose form can be dictated by approximate symmetries, which also help control the size of quantum corrections. We discuss several possible symmetries that can achieve this, including pseudo-Goldstone inflatons characterized by a coset G/H (based on abelian and non-abelian, compact and non-compact symmetries), as well as symmetries that are intrinsically higher dimensional. Besides the usual trigonometric potentials of Natural Inflation we also find in this way simple large-field power laws (like V ? ?{sup 2}) and exponential potentials, V(?) = ?{sub k}V{sub x}e{sup ?k?/M}. Both of these can describe the data well and give slow-roll inflation for large fields without the need for a precise balancing of terms in the potential. The exponential potentials achieve large r through the limit |?| || ? and so predict r ? (8/3)(1-n{sub s}); consequently n{sub s} ? 0.96 gives r ? 0.11 but not much larger (and so could be ruled out as measurements on r and n{sub s} improve). We examine the naturalness issues for these models and give simple examples where symmetries protect these forms, using both pseudo-Goldstone inflatons (with non-abelian non-compact shift symmetries following familiar techniques from chiral perturbation theory) and extra-dimensional models.

  17. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate studentScienceLaboratory program LabsDesignLargeLarge

  18. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLakeLanguage of a flyLargeLarge

  19. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLakeLanguage of aLargeLarge

  20. Large-Scale PV Integration Study

    SciTech Connect (OSTI)

    Lu, Shuai; Etingov, Pavel V.; Diao, Ruisheng; Ma, Jian; Samaan, Nader A.; Makarov, Yuri V.; Guo, Xinxin; Hafen, Ryan P.; Jin, Chunlian; Kirkham, Harold; Shlatz, Eugene; Frantzis, Lisa; McClive, Timothy; Karlson, Gregory; Acharya, Dhruv; Ellis, Abraham; Stein, Joshua; Hansen, Clifford; Chadliev, Vladimir; Smart, Michael; Salgo, Richard; Sorensen, Rahn; Allen, Barbara; Idelchik, Boris

    2011-07-29

    This research effort evaluates the impact of large-scale photovoltaic (PV) and distributed generation (DG) output on NV Energy’s electric grid system in southern Nevada. It analyzes the ability of NV Energy’s generation to accommodate increasing amounts of utility-scale PV and DG, and the resulting cost of integrating variable renewable resources. The study was jointly funded by the United States Department of Energy and NV Energy, and conducted by a project team comprised of industry experts and research scientists from Navigant Consulting Inc., Sandia National Laboratories, Pacific Northwest National Laboratory and NV Energy.

  1. Geobiology (2006), 4, 7192 2006 The Authors

    E-Print Network [OSTI]

    Benning, Liane G.

    2006-01-01

    temperature (>250 °C) geothermal systems through which a natural heat output of approximately 4200 MW. 71 Blackwell Publishing LtdORIGINAL ARTICLEBiomarkers in geothermal sinters Composition and implications of diverse lipids in New Zealand Geothermal sinters R. D. PANCOST,1 S. PRESSLEY,1 J. M. COLEMAN,1

  2. Roland Duclous (corresponding author) Universite Bordeaux I,

    E-Print Network [OSTI]

    Filbet, Francis

    and energy deposition in the general frame of Inertial Confinement Fusion applications. It is able, short laser pulses with solid targets [1], Inertial Confinement Fusion (ICF) schemes [2, 3], the energy-relativistic 2Dx × 3Dv Vlasov-Maxwell system, coupled with Fokker-Planck-Landau type operators. The magnetic

  3. Authorization basis status report (miscellaneous TWRS facilities, tanks and components)

    SciTech Connect (OSTI)

    Stickney, R.G.

    1998-04-29

    This report presents the results of a systematic evaluation conducted to identify miscellaneous TWRS facilities, tanks and components with potential needed authorization basis upgrades. It provides the Authorization Basis upgrade plan for those miscellaneous TWRS facilities, tanks and components identified.

  4. National Defense Authorization Act for Fiscal Year 1993 (PL 102...

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

    National Defense Authorization Act for Fiscal Year 1993 (PL 102-484) National Defense Authorization Act for Fiscal Year 1993 (PL 102-484) Section 3162 of the National Defense...

  5. Children’s story authoring with Propp’s morphology 

    E-Print Network [OSTI]

    Hammond, Sean Paul

    2011-06-30

    This thesis applies concepts from Vladimir Propp’s model of the narrative structure of fairy tales (Propp’s morphology) to a story authoring tool for children. A computer story authoring application based on Propp’s ...

  6. INTERNATIONAL COMMISSION ON LARGE DAMS

    E-Print Network [OSTI]

    Bowles, David S.

    Q76-R INTERNATIONAL COMMISSION ON LARGE DAMS 20TH CONGRESS BEIJING, CHINA THE STATUS OF METHODS FOR ESTIMATION OF THE PROBABILITY OF FAILURE OF DAMS FOR USE IN QUANTITATIVE RISK ASSESSMENT (* ) Robin FELL. INTRODUCTION The use of Quantitative Risk Assessment (QRA) techniques to assist in dam safety management

  7. Fort Pierce Utilities Authority- Solar Water Heating Rebate

    Office of Energy Efficiency and Renewable Energy (EERE)

    Note: Fort Pierce Utilities Authority has completed its rebate program for 2015. Check the website for updates.

  8. Author's personal copy Physica D 239 (2010) 15271541

    E-Print Network [OSTI]

    Froyland, Gary

    2010-01-01

    particles is completely determined Corresponding author. Tel.: +61 2 9385 7050; fax: +61 2 9385 7123. E

  9. Sympathetic cooling in a large ion crystal

    E-Print Network [OSTI]

    Guin-Dar Lin; L. -M. Duan

    2015-11-08

    We analyze the dynamics and steady state of a linear ion array when some of the ions are continuously laser cooled. We calculate the ions' local temperature measured by its position fluctuation under various trapping and cooling configurations, taking into account background heating due to the noisy environment. For a large system, we demonstrate that by arranging the cooling ions evenly in the array, one can suppress the overall heating considerably. We also investigate the effect of different cooling rates and find that the optimal cooling efficiency is achieved by an intermediate cooling rate. We discuss the relaxation time for the ions to approach the steady state, and show that with periodic arrangement of the cooling ions, the cooling efficiency does not scale down with the system size.

  10. Legal Authority 1 Export Administration Regulations EARB 298 -October 2001

    E-Print Network [OSTI]

    Bernstein, Daniel

    Legal Authority 1 Export Administration Regulations EARB 298 - October 2001 Part I PRINCIPAL STATUTORY AUTHORITY FOR THE EXPORT ADMINISTRATION REGULATIONS #12;Legal Authority 2 1 The Act expired Presidential notices, continued in effect the provisions of the Export Administration Regulations. The Act

  11. The International Large Detector: Letter of Intent

    E-Print Network [OSTI]

    The ILD Concept Group

    2010-06-17

    The International Large Detector (ILD) is a concept for a detector at the International Linear Collider, ILC. The ILC will collide electrons and positrons at energies of initially 500 GeV, upgradeable to 1 TeV. The ILC has an ambitious physics program, which will extend and complement that of the Large Hadron Collider (LHC). A hallmark of physics at the ILC is precision. The clean initial state and the comparatively benign environment of a lepton collider are ideally suited to high precision measurements. To take full advantage of the physics potential of ILC places great demands on the detector performance. The design of ILD is driven by these requirements. Excellent calorimetry and tracking are combined to obtain the best possible overall event reconstruction, including the capability to reconstruct individual particles within jets for particle ow calorimetry. This requires excellent spatial resolution for all detector systems. A highly granular calorimeter system is combined with a central tracker which stresses redundancy and efficiency. In addition, efficient reconstruction of secondary vertices and excellent momentum resolution for charged particles are essential for an ILC detector. The interaction region of the ILC is designed to host two detectors, which can be moved into the beam position with a push-pull scheme. The mechanical design of ILD and the overall integration of subdetectors takes these operational conditions into account.

  12. Chunking of Large Multidimensional Arrays

    SciTech Connect (OSTI)

    Rotem, Doron; Otoo, Ekow J.; Seshadri, Sridhar

    2007-02-28

    Data intensive scientific computations as well on-lineanalytical processing applications as are done on very large datasetsthat are modeled as k-dimensional arrays. The storage organization ofsuch arrays on disks is done by partitioning the large global array intofixed size hyper-rectangular sub-arrays called chunks or tiles that formthe units of data transfer between disk and memory. Typical queriesinvolve the retrieval of sub-arrays in a manner that accesses all chunksthat overlap the query results. An important metric of the storageefficiency is the expected number of chunks retrieved over all suchqueries. The question that immediately arises is "what shapes of arraychunks give the minimum expected number of chunks over a query workload?"In this paper we develop two probabilistic mathematical models of theproblem and provide exact solutions using steepest descent and geometricprogramming methods. Experimental results, using synthetic workloads onreal life data sets, show that our chunking is much more efficient thanthe existing approximate solutions.

  13. Energy Procedia 37 (2013) 2212 2223 1876-6102 2013 The Authors. Published by Elsevier Ltd.

    E-Print Network [OSTI]

    2013-01-01

    attractiveness of the PHICCOS feeding system is assessed through calculation of its capital costs and resultingEnergy Procedia 37 (2013) 2212­ 2223 1876-6102 © 2013 The Authors. Published by Elsevier Ltd levelized cost of electricity, relative to competing commercial technologies. The findings of this work show

  14. COVER SHEET This is the author version of article published as

    E-Print Network [OSTI]

    Roe, Paul

    of the relatedness of human to human, human to non-human and non-human to non- human. Author Keywords Automatic encounters with automatic telephone systems. Some of us may be talking to computers at work: my cousin talks to the paintshop computer to coordinate his team at a local car manufacturer, much easier than using a keyboard

  15. Large Eddy Simulations of extinction

    E-Print Network [OSTI]

    Ayache, S.; Garmory, A.; Tyliszczak, A.; Mastorakos, E.

    2012-08-29

    -Martinez, A. Kronenburg. Flame stabilization mechanism in lifted flames. Flow, Tur- bulence and Combustion, 87:377–406, 2011. 8. M. Mortensen, R.W. Bilger. Derivation of the conditional moment closure equations for spray combustion. Combustion and Flame, 156... .B. Devaud, R.W. Bilger. Modeling evaporation effects in conditional moment closure for spray autoignition. Combustion Theory and Modelling, 15:725–752, 2011. 13. N. Branley and W. P. Jones. Large Eddy Simulation of a Turbulent Non-premixed Flame. Combus...

  16. Analysis Methodology for Balancing Authority Cooperation in High Penetration of Variable Generation

    SciTech Connect (OSTI)

    Makarov, Yuri V.; Etingov, Pavel V.; Zhou, Ning; Ma, Jian; Samaan, Nader A.; Diao, Ruisheng; Malhara, Sunita V.; Guttromson, Ross T.; Du, Pengwei; Sastry, Chellury

    2010-02-01

    With the rapidly growing penetration level of wind and solar generation, the challenges of managing variability and the uncertainty of intermittent renewable generation become more and more significant. The problem of power variability and uncertainty gets exacerbated when each balancing authority (BA) works locally and separately to balance its own subsystem. The virtual BA concept means various forms of collaboration between individual BAs must manage power variability and uncertainty. The virtual BA will have a wide area control capability in managing its operational balancing requirements in different time frames. This coordination results in the improvement of efficiency and reliability of power system operation while facilitating the high level integration of green, intermittent energy resources. Several strategies for virtual BA implementation, such as ACE diversity interchange (ADI), wind only BA, BA consolidation, dynamic scheduling, regulation and load following sharing, extreme event impact study are discussed in this report. The objective of such strategies is to allow individual BAs within a large power grid to help each other deal with power variability. Innovative methods have been developed to simulate the balancing operation of BAs. These methods evaluate the BA operation through a number of metrics — such as capacity, ramp rate, ramp duration, energy and cycling requirements — to evaluate the performances of different virtual BA strategies. The report builds a systematic framework for evaluating BA consolidation and coordination. Results for case studies show that significant economic and reliability benefits can be gained. The merits and limitation of each virtual BA strategy are investigated. The report provides guidelines for the power industry to evaluate the coordination or consolidation method. The application of the developed strategies in cooperation with several regional BAs is in progress for several off-spring projects.

  17. Large Component Removal/Disposal

    SciTech Connect (OSTI)

    Wheeler, D. M.

    2002-02-27

    This paper describes the removal and disposal of the large components from Maine Yankee Atomic Power Plant. The large components discussed include the three steam generators, pressurizer, and reactor pressure vessel. Two separate Exemption Requests, which included radiological characterizations, shielding evaluations, structural evaluations and transportation plans, were prepared and issued to the DOT for approval to ship these components; the first was for the three steam generators and one pressurizer, the second was for the reactor pressure vessel. Both Exemption Requests were submitted to the DOT in November 1999. The DOT approved the Exemption Requests in May and July of 2000, respectively. The steam generators and pressurizer have been removed from Maine Yankee and shipped to the processing facility. They were removed from Maine Yankee's Containment Building, loaded onto specially designed skid assemblies, transported onto two separate barges, tied down to the barges, th en shipped 2750 miles to Memphis, Tennessee for processing. The Reactor Pressure Vessel Removal Project is currently under way and scheduled to be completed by Fall of 2002. The planning, preparation and removal of these large components has required extensive efforts in planning and implementation on the part of all parties involved.

  18. Thermoacoustic imaging over large field of view for three-dimensional breast tumor localization: A phantom study

    SciTech Connect (OSTI)

    Fu, Yong; Ji, Zhong; Ding, Wenzheng; Ye, Fanghao; Lou, Cunguang

    2014-11-01

    Purpose: Previous studies demonstrated that thermoacoustic imaging (TAI) has great potential for breast tumor detection. However, large field of view (FOV) imaging remains a long-standing challenge for three-dimensional (3D) breast tumor localization. Here, the authors propose a practical TAI system for noninvasive 3D localization of breast tumors with large FOV through the use of ultrashort microwave pulse (USMP). Methods: A USMP generator was employed for TAI. The energy density required for quality imaging and the corresponding microwave-to-acoustic conversion efficiency were compared with that of conventional TAI. The microwave energy distribution, imaging depth, resolution, and 3D imaging capabilities were then investigated. Finally, a breast phantom embedded with a laboratory-grown tumor was imaged to evaluate the FOV performance of the USMP TAI system, under a simulated clinical situation. Results: A radiation energy density equivalent to just 1.6%–2.2% of that for conventional submicrosecond microwave TAI was sufficient to obtain a thermoacoustic signal with the required signal-to-noise ratio. This result clearly demonstrated a significantly higher microwave-to-acoustic conversion efficiency of USMP TAI compared to that of conventional TAI. The USMP TAI system achieved 61 mm imaging depth and 12 × 12 cm{sup 2} microwave radiation area. The volumetric image of a copper target measured at depth of 4–6 cm matched well with the actual shape and the resolution reaches 230 ?m. The TAI of the breast phantom was precisely localized to an accuracy of 0.1 cm over an 8 × 8 cm{sup 2} FOV. Conclusions: The experimental results demonstrated that the USMP TAI system offered significant potential for noninvasive clinical detection and 3D localization of deep breast tumors, with low microwave radiation dose and high spatial resolution over a sufficiently large FOV.

  19. Duct thermal performance models for large commercial buildings

    SciTech Connect (OSTI)

    Wray, Craig P.

    2003-10-01

    Despite the potential for significant energy savings by reducing duct leakage or other thermal losses from duct systems in large commercial buildings, California Title 24 has no provisions to credit energy-efficient duct systems in these buildings. A substantial reason is the lack of readily available simulation tools to demonstrate the energy-saving benefits associated with efficient duct systems in large commercial buildings. The overall goal of the Efficient Distribution Systems (EDS) project within the PIER High Performance Commercial Building Systems Program is to bridge the gaps in current duct thermal performance modeling capabilities, and to expand our understanding of duct thermal performance in California large commercial buildings. As steps toward this goal, our strategy in the EDS project involves two parts: (1) developing a whole-building energy simulation approach for analyzing duct thermal performance in large commercial buildings, and (2) using the tool to identify the energy impacts of duct leakage in California large commercial buildings, in support of future recommendations to address duct performance in the Title 24 Energy Efficiency Standards for Nonresidential Buildings. The specific technical objectives for the EDS project were to: (1) Identify a near-term whole-building energy simulation approach that can be used in the impacts analysis task of this project (see Objective 3), with little or no modification. A secondary objective is to recommend how to proceed with long-term development of an improved compliance tool for Title 24 that addresses duct thermal performance. (2) Develop an Alternative Calculation Method (ACM) change proposal to include a new metric for thermal distribution system efficiency in the reporting requirements for the 2005 Title 24 Standards. The metric will facilitate future comparisons of different system types using a common ''yardstick''. (3) Using the selected near-term simulation approach, assess the impacts of duct system improvements in California large commercial buildings, over a range of building vintages and climates. This assessment will provide a solid foundation for future efforts that address the energy efficiency of large commercial duct systems in Title 24. This report describes our work to address Objective 1, which includes a review of past modeling efforts related to duct thermal performance, and recommends near- and long-term modeling approaches for analyzing duct thermal performance in large commercial buildings.

  20. Elliptic Flow at Large Viscosity

    E-Print Network [OSTI]

    Volker Koch

    2009-09-18

    In this contribution we present an alternative scenario for the large elliptic flow observed in relativistic heavy ion collisions. Motivated by recent results from Lattice QCD on flavor off-diagonal susceptibilities we argue that the matter right above $T_{c}$ can be described by single-particle dynamics in a repulsive single-particle potential, which in turn gives rise to elliptic flow. These ideas can be tested experimentally by measuring elliptic flow of heavy quarks, preferably via the measurement of $J/\\Psi$ elliptic flow.

  1. Planetary Migration to Large Radii

    E-Print Network [OSTI]

    R. G. Martin; S. H. Lubow; J. E. Pringle; M C. Wyatt

    2007-04-25

    There is evidence for the existence of massive planets at orbital radii of several hundred AU from their parent stars where the timescale for planet formation by core accretion is longer than the disc lifetime. These planets could have formed close to their star and then migrated outwards. We consider how the transfer of angular momentum by viscous disc interactions from a massive inner planet could cause significant outward migration of a smaller outer planet. We find that it is in principle possible for planets to migrate to large radii. We note, however, a number of effects which may render the process somewhat problematic.

  2. Extra-Large Memory Nodes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvan Racah Evan-5 BeamlineGE, Ford,Extra-Large Memory

  3. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate studentScienceLaboratory program LabsDesignLarge

  4. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLakeLanguage of a flyLarge

  5. Large Magnetization at Carbon Surfaces

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and mastheadLakeLanguage of aLarge

  6. Large-scale Offshore Wind Power in the United States. Assessment of Opportunities and Barriers

    SciTech Connect (OSTI)

    Musial, Walter; Ram, Bonnie

    2010-09-01

    This report describes the benefits of and barriers to large-scale deployment of offshore wind energy systems in U.S. waters.

  7. A Tractable Approach to Understanding the Results from Large-Scale 3D Transient

    E-Print Network [OSTI]

    Peraire, Jaime

    ) problems or NASA's HPCC (High Performance Computing & Communication) grand challenges, can easily. Introduction Large-scale simulations of physical phenomena on high performance computing systems (often on mas

  8. OE Requests Comments on Potential Creation of a Reserve of Large...

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

    bulk power system. Large power transformers (LPTs), which are a critical component of the power grid, are a concern because transformer failures can interrupt electricity service...

  9. Large aperture diffractive space telescope

    DOE Patents [OSTI]

    Hyde, Roderick A. (Livermore, CA)

    2001-01-01

    A large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary objective lens functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass "aiming" at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The objective lens includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the objective lens, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets which may be either earth bound or celestial.

  10. Design Editorial Systems and Design

    E-Print Network [OSTI]

    Papalambros, Panos

    to support system composition · Uncertainty quantification and management · Architecture, platform Application areas can include, but are not limited to, large- to small-scale systems in aerospace, automotive

  11. inverter. He is the author or co-author of more than 300 publica-tions in his research fields including the book `Control in Power

    E-Print Network [OSTI]

    Simões, Marcelo Godoy

    Power Electronics Society NEWSLETTER 19 Induction Generators for Small Wind Energy Systems M. GodoyW, the induction generator is favored for small hydro and wind power plants. More recently, with the widespread use that enabled people to move away from large urban concentrations, and growing concerns with the environment led

  12. RCRA (Resource Conservation and Recovery Act) final authorization guidance manual

    SciTech Connect (OSTI)

    Not Available

    1983-06-10

    The document provides guidance regarding final authorization of State Hazardous Waste programs for the pre-HSWA RCRA program. The manual establishes a process and schedule for State Authorization applications, and provides detailed guidance on what State programs must contain in order to qualify for final authorization. The primary audience is U.S. EPA Headquarters and Regional offices and also State agencies, but public requests have also been received so they are included in that broad audience.

  13. 16 USC 797a - Congressional Authorization for Projects Within...

    Open Energy Info (EERE)

    16 USC 797a - Congressional Authorization for Projects Within National Parks or Monuments Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document-...

  14. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    Valley Authority, Knoxville, TN (United States)","20 FOSSIL-FUELED POWER PLANTS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 42 ENGINEERING NOT INCLUDED IN OTHER...

  15. Control and Accountability of Nuclear Materials: Responsibilities and Authorities

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

    1992-09-23

    The order prescribes the Department of Energy (DOE) policies, responsibilities, and authorities for control and accountability of nuclear materials. Cancels DOE O 5633.2.

  16. Oklahoma Municipal Power Authority- WISE Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    The Oklahoma Municipal Power Authority (OMPA) offers loans for a variety of measures and equipment through its WISE Loan Program. This program encourages residential and commercial customers to...

  17. National Defense Authorization Act for Fiscal Year 2000 § 3164...

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

    Scope: Section 3164 of the National Defense Authorization Act for Fiscal Year 2000 implements a whistleblower protection program to ensure that covered individuals may...

  18. Chapter VII Appendix D FEDERAL EMERGENCY AUTHORITIES AND POLICY...

    Office of Environmental Management (EM)

    Gasoline Supply Reserve, and provides for the presidentially directed drawdown of the reserves through the Secretary of Energy. It also authorizes the Secretary of Energy to...

  19. Applications for Change or Transfer of Control of Authorizations...

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

    Applicants for authorization to import or export natural gas, including liquefied natural gas (LNG), apply on behalf of a given entity, whose corporate structure and place of...

  20. Excepted Service Authorities for EJ and EK Pay Plans

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

    2012-03-30

    The order establishes requirements and responsibilities for the employment and compensation of individuals when using DOE excepted service authorities. Admin Chg 1 dated 6-20-12.