Sample records for metric units belong

  1. A Case Study in Developing Process Unit Energy Metrics 

    E-Print Network [OSTI]

    Davis, J. L.; Van Atta, B.

    2006-01-01T23:59:59.000Z

    At the 2005 IETC Conference, KBC (Davis and Knight) submitted a paper on Integrating Process Unit Energy Metrics into a Plant Energy Managemenet System. For the 2006 conference, KBC wishes to submit a paper that details an actual case study where...

  2. A Case Study in Developing Process Unit Energy Metrics

    E-Print Network [OSTI]

    Davis, J. L.; Van Atta, B.

    2006-01-01T23:59:59.000Z

    At the 2005 IETC Conference, KBC (Davis and Knight) submitted a paper on Integrating Process Unit Energy Metrics into a Plant Energy Managemenet System. For the 2006 conference, KBC wishes to submit a paper that details an actual case study where...

  3. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only commercially active lithium mine operating in the United States was a

    E-Print Network [OSTI]

    94 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only commercially active lithium mine operating in the United States was a brine operation in Nevada. Two companies produced a large array of downstream lithium compounds in the United States from

  4. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only commercially active lithium mine in the United States was a brine

    E-Print Network [OSTI]

    94 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only commercially active lithium mine in the United States was a brine operation in Nevada. The mine's production capacity was expanded in 2012, and a new lithium hydroxide plant opened in North

  5. (Data in metric tons of tungsten content, unless otherwise noted) Domestic Production and Use: The last recorded production of tungsten concentrates in the United States was in

    E-Print Network [OSTI]

    182 TUNGSTEN (Data in metric tons of tungsten content, unless otherwise noted) Domestic Production and Use: The last recorded production of tungsten concentrates in the United States was in 1994 of ores and concentrates, intermediate and primary products, wrought and unwrought tungsten, and waste

  6. (Data in metric tons of tungsten content, unless otherwise noted) Domestic Production and Use: The last recorded production of tungsten concentrates in the United States was in

    E-Print Network [OSTI]

    178 TUNGSTEN (Data in metric tons of tungsten content, unless otherwise noted) Domestic Production and Use: The last recorded production of tungsten concentrates in the United States was in 1994. In 2000, intermediate and primary products, wrought and unwrought tungsten, and waste and scrap: China, 39%; Russia, 21

  7. Conceptual Framework for Developing Resilience Metrics for the Electricity, Oil, and Gas Sectors in the United States

    SciTech Connect (OSTI)

    Watson, Jean-Paul; Guttromson, Ross; Silva-Monroy, Cesar; Jeffers, Robert; Jones, Katherine; Ellison, James; Rath, Charles; Gearhart, Jared; Jones, Dean; Corbet, Tom; Hanley, Charles; Walker, La Tonya

    2014-09-01T23:59:59.000Z

    This report has been written for the Department of Energy’s Energy Policy and Systems Analysis Office to inform their writing of the Quadrennial Energy Review in the area of energy resilience. The topics of measuring and increasing energy resilience are addressed, including definitions, means of measuring, and analytic methodologies that can be used to make decisions for policy, infrastructure planning, and operations. A risk-based framework is presented which provides a standard definition of a resilience metric. Additionally, a process is identified which explains how the metrics can be applied. Research and development is articulated that will further accelerate the resilience of energy infrastructures.

  8. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only active lithium carbonate plant in the United States was a brine operation in

    E-Print Network [OSTI]

    94 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only active lithium carbonate plant in the United States was a brine operation in Nevada. Two companies produced a large array of downstream lithium compounds in the United States from domestic or South

  9. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    170 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 90% of the primary tin consumed domestically in 2012. The major uses were as follows

  10. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    172 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 81% of the primary tin consumed domestically in 2006. The major uses were as follows

  11. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    172 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 86% of the primary tin consumed domestically in 2008. The major uses were as follows

  12. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    176 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 81% of the primary tin consumed domestically in 2005. The major uses were as follows

  13. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    170 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 84% of the primary tin consumed domestically in 2009. The major uses were as follows

  14. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    168 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms accounted for about 90% of the primary tin consumed domestically in 2013. The major uses for tin

  15. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    170 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 91% of the primary tin consumed domestically in 2010. The major uses were as follows

  16. (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989,

    E-Print Network [OSTI]

    176 TIN (Data in metric tons of tin content unless otherwise noted) Domestic Production and Use: Tin has not been mined or smelted in the United States since 1993 and 1989, respectively. Twenty-five firms used about 84% of the primary tin consumed domestically in 2007. The major uses were as follows

  17. Metric Presentation

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

    MODERN GRID S T R A T E G Y Smart Grid Metrics Monitoring our Progress Smart Grid Implementation Workshop Joe Miller - Modern Grid Team June 19, 2008 1 Conducted by the National...

  18. Variable metric conjugate gradient methods

    SciTech Connect (OSTI)

    Barth, T.; Manteuffel, T.

    1994-07-01T23:59:59.000Z

    1.1 Motivation. In this paper we present a framework that includes many well known iterative methods for the solution of nonsymmetric linear systems of equations, Ax = b. Section 2 begins with a brief review of the conjugate gradient method. Next, we describe a broader class of methods, known as projection methods, to which the conjugate gradient (CG) method and most conjugate gradient-like methods belong. The concept of a method having either a fixed or a variable metric is introduced. Methods that have a metric are referred to as either fixed or variable metric methods. Some relationships between projection methods and fixed (variable) metric methods are discussed. The main emphasis of the remainder of this paper is on variable metric methods. In Section 3 we show how the biconjugate gradient (BCG), and the quasi-minimal residual (QMR) methods fit into this framework as variable metric methods. By modifying the underlying Lanczos biorthogonalization process used in the implementation of BCG and QMR, we obtain other variable metric methods. These, we refer to as generalizations of BCG and QMR.

  19. (Data in metric tons unless otherwise noted) Domestic Production and Use: Indium was not recovered from ores in the United States in 2004. Two companies,

    E-Print Network [OSTI]

    80 INDIUM (Data in metric tons unless otherwise noted) Domestic Production and Use: Indium-efficiency photovoltaic devices. A major manufacturer is testing indium for a new application as a heat-management material in computers, which could increase consumption by 40 metric tons per year. The estimated

  20. (Data in metric tons unless otherwise noted) Domestic Production and Use: Indium was not recovered from ores in the United States in 2007. Indium-containing

    E-Print Network [OSTI]

    were exported to Canada for processing. Two companies, one in New York and the other in Rhode Island gallium diselenide (CIGS) solar cells require approximately 50 metric tons of indium to produce 1 gigawatt of solar power. Research was underway to develop a low-cost manufacturing process for flexible CIGS solar

  1. (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and Use: In 2007, the United States consumed about 11% of world chromite ore production in

    E-Print Network [OSTI]

    48 CHROMIUM (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production. Stainless- and heat-resisting-steel producers were the leading consumers of ferrochromium. Superalloys require chromium. The value of chromium material consumption was about $408 million as measured

  2. (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic Production and Use: In 2000, the United States consumed about 13% of world chromite ore production in

    E-Print Network [OSTI]

    44 CHROMIUM (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic chromium chemicals and chromite-containing refractories, respectively. Consumption of chromium ferroalloys and metal was predominantly for the production of stainless and heat-resisting steel and superalloys

  3. (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic Production and Use: The United States consumes about 13% of world chromite ore production in various

    E-Print Network [OSTI]

    48 CHROMIUM (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic chromium chemicals, chromium ferroalloys, and chromite-containing refractories, respectively. Consumption of chromium ferroalloys and metal by end use was: stainless and heat-resisting steel, 76%; full-alloy steel, 8

  4. (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic Production and Use: In 2001, the United States consumed about 14% of world chromite ore production in

    E-Print Network [OSTI]

    46 CHROMIUM (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic chromium chemicals and chromite-containing refractories, respectively. Consumption of chromium ferroalloys and metal was predominantly for the production of stainless and heat-resisting steel and superalloys

  5. (Data in thousand metric tons, gross weight unless otherwise noted) Domestic Production and Use: In 2005, the United States consumed about 11% of world chromite ore production

    E-Print Network [OSTI]

    48 CHROMIUM (Data in thousand metric tons, gross weight unless otherwise noted) Domestic Production. Imported chromite was consumed by one chemical firm to produce chromium chemicals. Consumption of chromium ferroalloys and metal was predominantly for the production of stainless and heat-resisting steel

  6. (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and Use: In 2011, the United States was expected to consume about 5% of world chromite

    E-Print Network [OSTI]

    42 CHROMIUM (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production- and heat-resisting-steel producers were the leading consumers of ferrochromium. Superalloys require chromium. The value of chromium material consumption in 2010 was $883 million as measured by the value

  7. (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and Use: In 2009, the United States was expected to consume about 7% of world chromite

    E-Print Network [OSTI]

    42 CHROMIUM (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and chromium metal. Stainless- and heat-resisting-steel producers were the leading consumers of ferrochromium. Superalloys require chromium. The value of chromium material consumption in 2008 was $1,283 million

  8. (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic Production and Use: The United States consumes about 14% of world chromite ore production in various

    E-Print Network [OSTI]

    48 CHROMIUM (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic and chromite-containing refractories, respectively. Consumption of chromium ferroalloys and metal was predominantly for the production of stainless and heat-resisting steel and superalloys, respectively. The value

  9. (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and Use: In 2012, the United States was expected to consume about 6% of world chromite

    E-Print Network [OSTI]

    42 CHROMIUM (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production company produced chromium metal. Stainless- and heat-resisting-steel producers were the leading consumers of ferrochromium. Superalloys require chromium. The value of chromium material consumption in 2011 was $1

  10. (Data in thousand metric tons, gross weight unless otherwise noted) Domestic Production and Use: In 2004, the United States consumed about 10% of world chromite ore production

    E-Print Network [OSTI]

    46 CHROMIUM (Data in thousand metric tons, gross weight unless otherwise noted) Domestic Production. Imported chromite was consumed by one chemical firm to produce chromium chemicals. Consumption of chromium ferroalloys and metal was predominantly for the production of stainless and heat-resisting steel

  11. (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic Production and Use: The United States consumes about 16% of world chromite ore production in various

    E-Print Network [OSTI]

    44 CHROMIUM (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic chromium chemicals, chromium ferroalloys, and chromite-containing refractories, respectively. Consumption of chromium ferroalloys and metal by end use was: stainless and heat-resisting steel, 74%; full-alloy steel

  12. (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and Use: In 2010, the United States was expected to consume about 2% of world chromite

    E-Print Network [OSTI]

    42 CHROMIUM (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production- and heat-resisting-steel producers were the leading consumers of ferrochromium. Superalloys require chromium. The value of chromium material consumption in 2009 was $358 million as measured by the value

  13. (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production and Use: In 2008, the United States consumed about 10% of world chromite ore production in

    E-Print Network [OSTI]

    44 CHROMIUM (Data in thousand metric tons gross weight unless otherwise noted) Domestic Production. Stainless- and heat-resisting-steel producers were the leading consumers of ferrochromium. Superalloys require chromium. The value of chromium material consumption in 2007 was $548 million as measured

  14. (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic Production and Use: The United States consumes about 12% of world chromite ore production in various

    E-Print Network [OSTI]

    44 CHROMIUM (Data in thousand metric tons, gross weight, unless otherwise noted) Domestic chromium chemicals, chromium ferroalloys, and chromite-containing refractories, respectively. Consumption of chromium ferroalloys and metal by end use was: stainless and heat-resisting steel, 68%; full-alloy steel, 8

  15. Belongs to Data Tim O'Reilly

    E-Print Network [OSTI]

    O'Brien, James F.

    The Future Belongs to Data Tim O'Reilly O'Reilly Media, Inc. www.oreilly.com Database Summit May 30, 2008 #12;How many of you have O'Reilly books? #12;3 What We Do At O'Reilly Change the world to follow them. · Books #12;5 How we do it · Find interesting technologies and people innovating from

  16. (Data in metric tons, unless otherwise noted) Domestic Production and Use: Indium was not recovered from ores in the United States in 2000. Domestically

    E-Print Network [OSTI]

    Statistics--United States: 1996 1997 1998 1999 2000e Production, refinery -- -- -- -- -- Imports fluctuations. World Refinery Production, Reserves, and Reserve Base: Refinery productione Reserves2 Reserve

  17. (Data in metric tons, unless otherwise noted) Domestic Production and Use: Indium was not recovered from ores in the United States in 2002. Domestically

    E-Print Network [OSTI]

    Statistics--United States: 1998 1999 2000 2001 2002e Production, refinery -- -- -- -- -- Imports. World Refinery Production, Reserves, and Reserve Base: Refinery productione Reserves3 Reserve base3 2001

  18. Conceptual Framework for Developing Resilience Metrics for the...

    Office of Environmental Management (EM)

    Conceptual Framework for Developing Resilience Metrics for the Electricity, Oil, and Gas Sectors in the United States (September 2014) Conceptual Framework for Developing...

  19. (Data in metric tons, unless otherwise noted) Domestic Production and Use: Indium was not recovered from ores in the United States in 2001. Domestically

    E-Print Network [OSTI]

    --United States: 1997 1998 1999 2000 2001e Production, refinery -- -- -- -- -- Imports for consumption 85.5 75 77 fluctuations caused by economic uncertainties. World Refinery Production, Reserves, and Reserve Base: Refinery

  20. (Data in metric tons, unless otherwise noted) Domestic Production and Use: No indium was recovered from ores in the United States in 1997. Domestically

    E-Print Network [OSTI]

    --United States: 1993 1994 1995 1996 1997e Production, refinery -- -- -- -- -- Imports for consumption 73.4 70 for the indium market remains promising. World Refinery Production, Reserves, and Reserve Base: Refinery

  1. Metrics for enterprise transformation

    E-Print Network [OSTI]

    Blackburn, Craig D. (Craig David), S. M. Massachusetts Institute of Technology

    2009-01-01T23:59:59.000Z

    The objective of this thesis is to depict the role of metrics in the evolving journey of enterprise transformation. To this end, three propositions are explored: (i) metrics and measurement systems drive transformation, ...

  2. Comparing Resource Adequacy Metrics: Preprint

    SciTech Connect (OSTI)

    Ibanez, E.; Milligan, M.

    2014-09-01T23:59:59.000Z

    As the penetration of variable generation (wind and solar) increases around the world, there is an accompanying growing interest and importance in accurately assessing the contribution that these resources can make toward planning reserve. This contribution, also known as the capacity credit or capacity value of the resource, is best quantified by using a probabilistic measure of overall resource adequacy. In recognizing the variable nature of these renewable resources, there has been interest in exploring the use of reliability metrics other than loss of load expectation. In this paper, we undertake some comparisons using data from the Western Electricity Coordinating Council in the western United States.

  3. Surveillance Metrics Sensitivity Study

    SciTech Connect (OSTI)

    Bierbaum, R; Hamada, M; Robertson, A

    2011-11-01T23:59:59.000Z

    In September of 2009, a Tri-Lab team was formed to develop a set of metrics relating to the NNSA nuclear weapon surveillance program. The purpose of the metrics was to develop a more quantitative and/or qualitative metric(s) describing the results of realized or non-realized surveillance activities on our confidence in reporting reliability and assessing the stockpile. As a part of this effort, a statistical sub-team investigated various techniques and developed a complementary set of statistical metrics that could serve as a foundation for characterizing aspects of meeting the surveillance program objectives. The metrics are a combination of tolerance limit calculations and power calculations, intending to answer level-of-confidence type questions with respect to the ability to detect certain undesirable behaviors (catastrophic defects, margin insufficiency defects, and deviations from a model). Note that the metrics are not intended to gauge product performance but instead the adequacy of surveillance. This report gives a short description of four metrics types that were explored and the results of a sensitivity study conducted to investigate their behavior for various inputs. The results of the sensitivity study can be used to set the risk parameters that specify the level of stockpile problem that the surveillance program should be addressing.

  4. Surveillance metrics sensitivity study.

    SciTech Connect (OSTI)

    Hamada, Michael S. (Los Alamos National Laboratory); Bierbaum, Rene Lynn; Robertson, Alix A. (Lawrence Livermore Laboratory)

    2011-09-01T23:59:59.000Z

    In September of 2009, a Tri-Lab team was formed to develop a set of metrics relating to the NNSA nuclear weapon surveillance program. The purpose of the metrics was to develop a more quantitative and/or qualitative metric(s) describing the results of realized or non-realized surveillance activities on our confidence in reporting reliability and assessing the stockpile. As a part of this effort, a statistical sub-team investigated various techniques and developed a complementary set of statistical metrics that could serve as a foundation for characterizing aspects of meeting the surveillance program objectives. The metrics are a combination of tolerance limit calculations and power calculations, intending to answer level-of-confidence type questions with respect to the ability to detect certain undesirable behaviors (catastrophic defects, margin insufficiency defects, and deviations from a model). Note that the metrics are not intended to gauge product performance but instead the adequacy of surveillance. This report gives a short description of four metrics types that were explored and the results of a sensitivity study conducted to investigate their behavior for various inputs. The results of the sensitivity study can be used to set the risk parameters that specify the level of stockpile problem that the surveillance program should be addressing.

  5. Cyber threat metrics.

    SciTech Connect (OSTI)

    Frye, Jason Neal; Veitch, Cynthia K.; Mateski, Mark Elliot; Michalski, John T.; Harris, James Mark; Trevino, Cassandra M.; Maruoka, Scott

    2012-03-01T23:59:59.000Z

    Threats are generally much easier to list than to describe, and much easier to describe than to measure. As a result, many organizations list threats. Fewer describe them in useful terms, and still fewer measure them in meaningful ways. This is particularly true in the dynamic and nebulous domain of cyber threats - a domain that tends to resist easy measurement and, in some cases, appears to defy any measurement. We believe the problem is tractable. In this report we describe threat metrics and models for characterizing threats consistently and unambiguously. The purpose of this report is to support the Operational Threat Assessment (OTA) phase of risk and vulnerability assessment. To this end, we focus on the task of characterizing cyber threats using consistent threat metrics and models. In particular, we address threat metrics and models for describing malicious cyber threats to US FCEB agencies and systems.

  6. Systems of Units Systems of units fall into three general categories (see Table 1. below)

    E-Print Network [OSTI]

    in astrophysics and in particle dynamics. It is less convenient on earth, where we keep having to calculate static in English units. In industrial metric units, we still ...nd kgf /cm2 , sometimes UNITS Force Mass Accel. gc

  7. Performance Metrics for Commercial Buildings

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Wang, Na; Romero, Rachel L.; Deru, Michael P.

    2010-09-30T23:59:59.000Z

    Commercial building owners and operators have requested a standard set of key performance metrics to provide a systematic way to evaluate the performance of their buildings. The performance metrics included in this document provide standard metrics for the energy, water, operations and maintenance, indoor environmental quality, purchasing, waste and recycling and transportation impact of their building. The metrics can be used for comparative performance analysis between existing buildings and industry standards to clarify the impact of sustainably designed and operated buildings.

  8. Farm Buildings Pocketbook in Metric 

    E-Print Network [OSTI]

    Anonymous

    1971-01-01T23:59:59.000Z

    Some useful advice giving standards, dimensions and data in metric for those interested in the design of farm buildings

  9. Social Media Ad Metrics Definitions

    E-Print Network [OSTI]

    Collins, Gary S.

    these metrics to encourage growth through consistency. Social media speaks to a new way of understanding howSocial Media Ad Metrics Definitions Released May 2009 #12;Social Media Metrics Definitions © 2008 & Social Media Committee. About the IAB's User-Generated Content & Social Media Committee: The User

  10. The need to belong and the value of belongings: Does ostracism change the subjective value of personal possessions?

    E-Print Network [OSTI]

    Walasek, Lucasz; Matthews, William J.; Rakow, Tim

    2015-05-28T23:59:59.000Z

    personal relationships and communities, and that this increase was mediated by an increased need for belonging. Ostracism therefore exerts a marked influence on basic psychological motivations that can shape product choice. The present work builds... a specific sweater in your mind, press proceed to answer some questions about it.” Ostracism manipulation In Studies 1 through 3, the ostracism manipulation employed the most recent version (#4) of Cyberball (Williams & Jarvis, 2006): a computer...

  11. Metrics for Energy Resilience

    SciTech Connect (OSTI)

    Paul E. Roege; Zachary A. Collier; James Mancillas; John A. McDonagh; Igor Linkov

    2014-09-01T23:59:59.000Z

    Energy lies at the backbone of any advanced society and constitutes an essential prerequisite for economic growth, social order and national defense. However there is an Achilles heel to today?s energy and technology relationship; namely a precarious intimacy between energy and the fiscal, social, and technical systems it supports. Recently, widespread and persistent disruptions in energy systems have highlighted the extent of this dependence and the vulnerability of increasingly optimized systems to changing conditions. Resilience is an emerging concept that offers to reconcile considerations of performance under dynamic environments and across multiple time frames by supplementing traditionally static system performance measures to consider behaviors under changing conditions and complex interactions among physical, information and human domains. This paper identifies metrics useful to implement guidance for energy-related planning, design, investment, and operation. Recommendations are presented using a matrix format to provide a structured and comprehensive framework of metrics relevant to a system?s energy resilience. The study synthesizes previously proposed metrics and emergent resilience literature to provide a multi-dimensional model intended for use by leaders and practitioners as they transform our energy posture from one of stasis and reaction to one that is proactive and which fosters sustainable growth.

  12. All conformally flat pure radiation metrics

    E-Print Network [OSTI]

    S. Brian Edgar; Garry Ludwig

    1996-12-20T23:59:59.000Z

    The complete class of conformally flat, pure radiation metrics is given, generalising the metric recently given by Wils.

  13. (Data in thousand metric tons of boric oxide (B2O3) unless otherwise noted) Domestic Production and Use: Data for boron production and consumption in 2008 in the United States were

    E-Print Network [OSTI]

    %; Chile, 24%; Bolivia, 8%; Peru, 5%; and other, 8%. Tariff: Item Number Normal Trade Relations 12 of boron-free reinforcement-grade fiberglass in Europe and the United States. The continued rise in energy Reserves6 Reserve base6 2007 2008e United States W W 40,000 80,000 Argentina 550 670 2,000 9,000 Bolivia 50

  14. Quotients of Metric Spaces

    E-Print Network [OSTI]

    Herman, Robert A.

    1968-01-01T23:59:59.000Z

    . PRELIMINARIES 1 CHAPTER II . SFACBS IN WHICH SEQUENCES SUFFICE 6 CHAPTER III . QUOTIENTS OF SEPARABLE METRIC SPACES Ik CHAPTER IV. GENERAL QUOTIENT SPACES 25 CHAPTER V. CLOSED QUOTIENT MAPS 35 CHAPTER VI. OPEN QUOTIENT MAPS 50 CHAPTER VII. OPEN AND CLOSED... QUOTIENT MAPS 55 CHAPTER VIII. ANOTHER RESULT 6l BIBLIOGRAPHY 65 CHAPTER I. PRELIMINARIES We begin by stating some basic definitions and theorems. Definition 1 . 1 ; Let f be a function from a topological space X onto a set Y. Then the quotient...

  15. Metrics For Comparing Plasma Mass Filters

    SciTech Connect (OSTI)

    Abraham J. Fetterman and Nathaniel J. Fisch

    2012-08-15T23:59:59.000Z

    High-throughput mass separation of nuclear waste may be useful for optimal storage, disposal, or environmental remediation. The most dangerous part of nuclear waste is the fission product, which produces most of the heat and medium-term radiation. Plasmas are well-suited to separating nuclear waste because they can separate many different species in a single step. A number of plasma devices have been designed for such mass separation, but there has been no standardized comparison between these devices. We define a standard metric, the separative power per unit volume, and derive it for three different plasma mass filters: the plasma centrifuge, Ohkawa filter, and the magnetic centrifugal mass filter. __________________________________________________

  16. Metrics for comparing plasma mass filters

    SciTech Connect (OSTI)

    Fetterman, Abraham J.; Fisch, Nathaniel J. [Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540 (United States)

    2011-10-15T23:59:59.000Z

    High-throughput mass separation of nuclear waste may be useful for optimal storage, disposal, or environmental remediation. The most dangerous part of nuclear waste is the fission product, which produces most of the heat and medium-term radiation. Plasmas are well-suited to separating nuclear waste because they can separate many different species in a single step. A number of plasma devices have been designed for such mass separation, but there has been no standardized comparison between these devices. We define a standard metric, the separative power per unit volume, and derive it for three different plasma mass filters: the plasma centrifuge, Ohkawa filter, and the magnetic centrifugal mass filter.

  17. August 2003 IT SECURITY METRICS

    E-Print Network [OSTI]

    August 2003 IT SECURITY METRICS Elizabeth B. Lennon, Editor Information Technology Laboratory approach to measuring information security. Evaluating security at the sys tem level, IT security metrics and techniques contained in NIST SP 800-26, Security Self-Assessment Guide for Information Technology Systems

  18. (Data in metric tons of yttrium oxide (Y2O3) content unless otherwise noted) Domestic Production and Use: The rare-earth element yttrium was not mined in the United States in 2008. All

    E-Print Network [OSTI]

    12-31-08 Thorium ores and concentrates (monazite) 2612.20.0000 Free. Rare-earth metals, scandium Production and Use: The rare-earth element yttrium was not mined in the United States in 2008. All yttrium and compounds containing by weight >19% to rare-earth compounds, including

  19. 9,997,638 Metric Tons of CO2 Injected as of April 9, 2015 | Department...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

  20. 9,805,742 Metric Tons of CO2 Injected as of February 27, 2015...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

  1. 9,981,117 Metric Tons of CO2 Injected as of April 2, 2015 | Department...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

  2. 9,355,469 Metric Tons of CO2 Injected as of January 29, 2015...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

  3. 9,449,421 Metric Tons of CO2 Injected as of February 12, 2015...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

  4. 10,045,885 Metric Tons of CO2 Injected as of April 16, 2015

    Broader source: Energy.gov [DOE]

    This carbon dioxide (CO2) has been injected in the United States as part of DOE’s Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is equivalent to the...

  5. 10,180,047 Metric Tons of CO2 Injected as of May 28, 2015 | Department...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

  6. Microsoft Word - QER Resilience Metrics - Technical Workshp ...

    Office of Environmental Management (EM)

    resiliency metrics for the energy sector and use cases o The framing of a resilience roadmap, and the implication and consequences of introducing new energy resilience metrics...

  7. Technical Workshop: Resilience Metrics for Energy Transmission...

    Energy Savers [EERE]

    of and need for resilience metrics and how they vary by natural gas, liquid fuels and electric grid infrastructures. Issues important to resilience metrics were identified and...

  8. Daylight metrics and energy savings

    SciTech Connect (OSTI)

    Mardaljevic, John; Heschong, Lisa; Lee, Eleanor

    2009-12-31T23:59:59.000Z

    The drive towards sustainable, low-energy buildings has increased the need for simple, yet accurate methods to evaluate whether a daylit building meets minimum standards for energy and human comfort performance. Current metrics do not account for the temporal and spatial aspects of daylight, nor of occupants comfort or interventions. This paper reviews the historical basis of current compliance methods for achieving daylit buildings, proposes a technical basis for development of better metrics, and provides two case study examples to stimulate dialogue on how metrics can be applied in a practical, real-world context.

  9. Segmental alternations and metrical theory

    E-Print Network [OSTI]

    Vaysman, Olga

    2009-01-01T23:59:59.000Z

    This dissertation focuses on phonological alternations that are influenced or constrained by word-internal prosody, i.e. prominence and foot structure, and what these alternations can tell us about metrical theory. Detailed ...

  10. Normalization of Process Safety Metrics

    E-Print Network [OSTI]

    Wang, Mengtian

    2012-10-19T23:59:59.000Z

    and organizational risks, there is an emerging need to evaluate the process safety implementation across an organization through measurements. Thus, the process safety metric is applied as a powerful tool that measures safety activities, status, and performance...

  11. Mining metrics for buried treasure

    E-Print Network [OSTI]

    D. A. Konkowski; T. M. Helliwell

    2005-01-07T23:59:59.000Z

    The same but different: That might describe two metrics. On the surface CLASSI may show two metrics are locally equivalent, but buried beneath one may be a wealth of further structure. This was beautifully described in a paper by M.A.H. MacCallum in 1998. Here I will illustrate the effect with two flat metrics -- one describing ordinary Minkowski spacetime and the other describing a three-parameter family of Gal'tsov-Letelier-Tod spacetimes. I will dig out the beautiful hidden classical singularity structure of the latter (a structure first noticed by Tod in 1994) and then show how quantum considerations can illuminate the riches. I will then discuss how quantum structure can help us understand classical singularities and metric parameters in a variety of exact solutions mined from the Exact Solutions book.

  12. DAYLIGHTING METRICS FOR RESIDENTIAL BUILDINGS

    E-Print Network [OSTI]

    unknown authors

    It is now widely accepted that the standard method for daylighting evaluation- the daylight factor- is due for replacement with metrics founded on absolute values for luminous quantities predicted over the course of a full year using sun and sky conditions derived from standardised climate files. The move to more realistic measures of daylighting introduces significant levels of additional complexity in both the simulation of the luminous quantities and the reduction of the simulation data to readily intelligible metrics. The simulation component, at least for buildings with standard glazing materials, is reasonably well understood. There is no consensus however on the composition of the metrics, and their formulation is an ongoing area of active research. Additionally, non-domestic and residential buildings present very different evaluation scenarios and it is not yet clear if a single metric would be applicable to both. This study uses a domestic dwelling as the setting to investigate and explore the applicability of daylighting metrics for residential buildings. In addition to daylighting provision for task and disclosing the potential for reducing electric lighting usage, we also investigate the formulation of metrics for non-visual effects such as entrainment of the circadian system.

  13. COSMOS{sup SM} based composite metrics

    SciTech Connect (OSTI)

    Culross, M.J.; Leslie, M.D.; Toland, J.A. [Raytheon E-Systems, Dallas, TX (United States)

    1996-12-31T23:59:59.000Z

    Process improvement is one of the goals of many organizations. Metrics for measuring process improvement are key to consistent, focused improvement. This paper introduces an approach for developing robust metrics suitable for measuring the improvement in complex processes. The approach uses the Cosmos framework to guide the user in where to collect metrics and it uses the composite metric to guide the user in how to collect metrics.

  14. Defining a Standard Metric for Electricity Savings

    SciTech Connect (OSTI)

    Brown, Marilyn; Akbari, Hashem; Blumstein, Carl; Koomey, Jonathan; Brown, Richard; Calwell, Chris; Carter, Sheryl; Cavanagh, Ralph; Chang, Audrey; Claridge, David; Craig, Paul; Diamond, Rick; Eto, Joseph H.; Fulkerson, William; Gadgil, Ashok; Geller, Howard; Goldemberg, Jose; Goldman, Chuck; Goldstein, David B.; Greenberg, Steve; Hafemeister, David; Harris, Jeff; Harvey, Hal; Heitz, Eric; Hirst, Eric; Hummel, Holmes; Kammen, Dan; Kelly, Henry; Laitner, Skip; Levine, Mark; Lovins, Amory; Masters, Gil; McMahon, James E.; Meier, Alan; Messenger, Michael; Millhone, John; Mills, Evan; Nadel, Steve; Nordman, Bruce; Price, Lynn; Romm, Joe; Ross, Marc; Rufo, Michael; Sathaye, Jayant; Schipper, Lee; Schneider, Stephen H; Sweeney, James L; Verdict, Malcolm; Vorsatz, Diana; Wang, Devra; Weinberg, Carl; Wilk, Richard; Wilson, John; Worrell, Ernst

    2009-03-01T23:59:59.000Z

    The growing investment by governments and electric utilities in energy efficiency programs highlights the need for simple tools to help assess and explain the size of the potential resource. One technique that is commonly used in this effort is to characterize electricity savings in terms of avoided power plants, because it is easier for people to visualize a power plant than it is to understand an abstraction such as billions of kilowatt-hours. Unfortunately, there is no standardization around the characteristics of such power plants. In this letter we define parameters for a standard avoided power plant that have physical meaning and intuitive plausibility, for use in back-of-the-envelope calculations. For the prototypical plant this article settles on a 500 MW existing coal plant operating at a 70percent capacity factor with 7percent T&D losses. Displacing such a plant for one year would save 3 billion kW h per year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metric is the Rosenfeld, in keeping with the tradition among scientists of naming units in honor of the person most responsible for the discovery and widespread adoption of the underlying scientific principle in question--Dr. Arthur H. Rosenfeld.

  15. Thermodynamic Metrics and Optimal Paths

    SciTech Connect (OSTI)

    Sivak, David; Crooks, Gavin

    2012-05-08T23:59:59.000Z

    A fundamental problem in modern thermodynamics is how a molecular-scale machine performs useful work, while operating away from thermal equilibrium without excessive dissipation. To this end, we derive a friction tensor that induces a Riemannian manifold on the space of thermodynamic states. Within the linear-response regime, this metric structure controls the dissipation of finite-time transformations, and bestows optimal protocols with many useful properties. We discuss the connection to the existing thermodynamic length formalism, and demonstrate the utility of this metric by solving for optimal control parameter protocols in a simple nonequilibrium model.

  16. Horizon thermodynamics and composite metrics

    E-Print Network [OSTI]

    Lorenzo Sindoni

    2012-11-12T23:59:59.000Z

    We examine the conditions under which the thermodynamic behaviour of gravity can be explained within an emergent gravity scenario, where the metric is defined as a composite operator. We show that due to the availability of a boundary of a boundary principle for the quantum effective action, Clausius-like relations can always be constructed. Hence, any true explanation of the thermodynamic nature of the metric tensor has to be referred to an equilibration process, associated to the presence of an H-theorem, possibly driven by decoherence induced by the pregeometric degrees of freedom, and their entanglement with the geometric ones.

  17. Interpretation of the Cosmological Metric

    E-Print Network [OSTI]

    Richard J. Cook; M. Shane Burns

    2008-09-03T23:59:59.000Z

    The cosmological Robertson-Walker metric of general relativity is often said to have the consequences that (1) the recessional velocity $v$ of a galaxy at proper distance $\\ell$ obeys the Hubble law $v=H\\ell$, and therefore galaxies at sufficiently great distance $\\ell$ are receding faster than the speed of light $c$; (2) faster than light recession does not violate special relativity theory because the latter is not applicable to the cosmological problem, and because ``space itself is receding'' faster than $c$ at great distance, and it is velocity relative to local space that is limited by $c$, not the velocity of distant objects relative to nearby ones; (3) we can see galaxies receding faster than the speed of light; and (4) the cosmological redshift is not a Doppler shift, but is due to a stretching of photon wavelength during propagation in an expanding universe. We present a particular Robertson-Walker metric (an empty universe metric) for which a coordinate transformation shows that none of these interpretation necessarily holds. The resulting paradoxes of interpretation lead to a deeper understanding of the meaning of the cosmological metric.

  18. The Long Term Fate of Our Digital Belongings: Toward a Service Model for Personal Archives

    E-Print Network [OSTI]

    Marshall, Cathy

    ' abilities to create, record, obtain, and share new media has resulted in what we might think of as digital media. To a greater extent than ever before, these digital belongings form the rich backdrop of a personThe Long Term Fate of Our Digital Belongings: Toward a Service Model for Personal Archives

  19. Homogeneous Einstein metrics on SU(n)

    E-Print Network [OSTI]

    Abid H. Mujtaba

    2011-10-10T23:59:59.000Z

    It is known that every compact simple Lie group admits a bi-invariant homogeneous Einstein metric. In this paper we use two ansatz to probe the existence of additional inequivalent Einstein metrics on the Lie group SU (n) for arbitrary n. We provide an explicit construction of (2k+1) inequivalent Einstein metrics on SU (2k) and 2k inequivalent Einstein metrics on SU (2k + 1).

  20. Daylight metrics and energy savings J. Mardaljevic

    E-Print Network [OSTI]

    LBNL-4585E Daylight metrics and energy savings Authors: J. Mardaljevic Institute of Energy 2009; 0: 1­23 ! Daylight metrics and energy savings J. Mardaljevic a , L. Heschong b , E.S. Lee c comfort performance. Current metrics do not account for the temporal and spatial aspects of daylight, nor

  1. Description of the Sandia National Laboratories science, technology & engineering metrics process.

    SciTech Connect (OSTI)

    Jordan, Gretchen B.; Watkins, Randall D.; Trucano, Timothy Guy; Burns, Alan Richard; Oelschlaeger, Peter

    2010-04-01T23:59:59.000Z

    There has been a concerted effort since 2007 to establish a dashboard of metrics for the Science, Technology, and Engineering (ST&E) work at Sandia National Laboratories. These metrics are to provide a self assessment mechanism for the ST&E Strategic Management Unit (SMU) to complement external expert review and advice and various internal self assessment processes. The data and analysis will help ST&E Managers plan, implement, and track strategies and work in order to support the critical success factors of nurturing core science and enabling laboratory missions. The purpose of this SAND report is to provide a guide for those who want to understand the ST&E SMU metrics process. This report provides an overview of why the ST&E SMU wants a dashboard of metrics, some background on metrics for ST&E programs from existing literature and past Sandia metrics efforts, a summary of work completed to date, specifics on the portfolio of metrics that have been chosen and the implementation process that has been followed, and plans for the coming year to improve the ST&E SMU metrics process.

  2. Design and Development of Performance Metrics for Elite Runners

    E-Print Network [OSTI]

    Mittal, Nikhil R.

    2012-01-01T23:59:59.000Z

    metric with distance for Jimmy for both feet Figure 5.29:metric vs. Distance for Jimmy Figure 5.32: Over-strideCDEL metric vs. Distance for Jimmy Figure 5.35: CDEL metric

  3. Multi-Metric Sustainability Analysis

    SciTech Connect (OSTI)

    Cowlin, S.; Heimiller, D.; Macknick, J.; Mann, M.; Pless, J.; Munoz, D.

    2014-12-01T23:59:59.000Z

    A readily accessible framework that allows for evaluating impacts and comparing tradeoffs among factors in energy policy, expansion planning, and investment decision making is lacking. Recognizing this, the Joint Institute for Strategic Energy Analysis (JISEA) funded an exploration of multi-metric sustainability analysis (MMSA) to provide energy decision makers with a means to make more comprehensive comparisons of energy technologies. The resulting MMSA tool lets decision makers simultaneously compare technologies and potential deployment locations.

  4. Normalization of Process Safety Metrics 

    E-Print Network [OSTI]

    Wang, Mengtian

    2012-10-19T23:59:59.000Z

    , for this research, the number of process safety incidents is not available; since all the companies just started recording process safety incidents after API RP 745 was issued. Therefore, the most similar reported indicator-operational oil spills is used... for lagging metrics testing as a proper substitute. The major related data was obtained for this section as follows: • Process and environmental incidents (operational oil spills) • Total oil production volume • Total natural gas production volume • Total...

  5. Integrating Process Unit Energy Metrics into Plant Energy Management Systems

    E-Print Network [OSTI]

    Davis, J. L.; Knight, N.

    2005-01-01T23:59:59.000Z

    As energy costs continue to rise across the process industry, many plants have responded by developing improved energy monitoring and reporting programs. At the center of such programs are typically spreadsheet or database applications that pull...

  6. Integrating Process Unit Energy Metrics into Plant Energy Management Systems 

    E-Print Network [OSTI]

    Davis, J. L.; Knight, N.

    2005-01-01T23:59:59.000Z

    information, such as fired heater excess oxygen and steam vent rates, from the plant data historian and generate summary reports that compare and trend actual performance relative to targets. On average, plants can expect to reduce overall energy costs by up...

  7. Metric Construction | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose Bend <StevensMcClellan,II JumpMepsolarMesilla,MethanetoMetric

  8. Sandia National Laboratories: performance metric evaluation

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

    metric evaluation PV Plant Performance Technical Briefing Published in PV Power Tech On March 4, 2015, in Computational Modeling & Simulation, Energy, Facilities, News, News &...

  9. Implicit Multifunction Theorems in complete metric spaces

    E-Print Network [OSTI]

    2010-06-10T23:59:59.000Z

    Implicit Multifunction Theorems in complete metric spaces. Huynh Van Ngai ? Nguyen Huu Tron† and. Michel Théra ‡. Abstract. In this paper, we establish some ...

  10. Defining a Standard Metric for Electricity Savings

    E-Print Network [OSTI]

    Koomey, Jonathan

    2009-01-01T23:59:59.000Z

    1991. The Potential for Electricity Efficiency Improvementswww.eia.doe.gov/cneaf/electricity/page/eia860.html>. FigureA STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*,

  11. Original Article Error Bounds and Metric Subregularity

    E-Print Network [OSTI]

    2014-06-18T23:59:59.000Z

    theory of error bounds of extended real-valued functions. Another objective is to ... Another observation is that neighbourhood V in the original definition of metric.

  12. TORIC LEBRUN METRICS AND JOYCE METRICS NOBUHIRO HONDA AND JEFF VIACLOVSKY

    E-Print Network [OSTI]

    Viaclovsky, Jeff

    TORIC LEBRUN METRICS AND JOYCE METRICS NOBUHIRO HONDA AND JEFF VIACLOVSKY Abstract. We show that Foundation under grant DMS-1105187. Mathematics Subject Classification (2010) 53A30. 1 #12;2 NOBUHIRO HONDA

  13. Metrics for the National SCADA Test Bed Program

    SciTech Connect (OSTI)

    Craig, Philip A.; Mortensen, J.; Dagle, Jeffery E.

    2008-12-05T23:59:59.000Z

    The U.S. Department of Energy Office of Electricity Delivery and Energy Reliability (DOE-OE) National SCADA Test Bed (NSTB) Program is providing valuable inputs into the electric industry by performing topical research and development (R&D) to secure next generation and legacy control systems. In addition, the program conducts vulnerability and risk analysis, develops tools, and performs industry liaison, outreach and awareness activities. These activities will enhance the secure and reliable delivery of energy for the United States. This report will describe metrics that could be utilized to provide feedback to help enhance the effectiveness of the NSTB Program.

  14. Reparametrization invariance of the classical metric

    E-Print Network [OSTI]

    G. G. Kirilin

    2006-11-16T23:59:59.000Z

    There is a statement on the parametrization dependence of the classical metric in the recent paper of N.E.J. Bjerrum-Bohr, J.F. Donoghue, B.R. Holstein, gr-qc/0610096. I completely disagree with this statement. Here I show reparametrization invariance of the classical metric.

  15. All Your Face Are Belong to Us: Breaking Facebook's Social Authentication

    E-Print Network [OSTI]

    Yang, Junfeng

    All Your Face Are Belong to Us: Breaking Facebook's Social Authentication Iasonas Polakis FORTH adversaries from compromising accounts using stolen credentials. Facebook has recently released a two can obtain the information needed to solve the chal- lenges presented by Facebook. We implement

  16. Smart Grid Status and Metrics Report Appendices

    SciTech Connect (OSTI)

    Balducci, Patrick J.; Antonopoulos, Chrissi A.; Clements, Samuel L.; Gorrissen, Willy J.; Kirkham, Harold; Ruiz, Kathleen A.; Smith, David L.; Weimar, Mark R.; Gardner, Chris; Varney, Jeff

    2014-07-01T23:59:59.000Z

    A smart grid uses digital power control and communication technology to improve the reliability, security, flexibility, and efficiency of the electric system, from large generation through the delivery systems to electricity consumers and a growing number of distributed generation and storage resources. To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived from the National Energy Technology Laboratory Modern Grid Strategy. The Smart Grid Status and Metrics Report defines and examines 21 metrics that collectively provide insight into the grid’s capacity to embody these characteristics. This appendix presents papers covering each of the 21 metrics identified in Section 2.1 of the Smart Grid Status and Metrics Report. These metric papers were prepared in advance of the main body of the report and collectively form its informational backbone.

  17. Program for implementing software quality metrics

    SciTech Connect (OSTI)

    Yule, H.P.; Riemer, C.A.

    1992-04-01T23:59:59.000Z

    This report describes a program by which the Veterans Benefit Administration (VBA) can implement metrics to measure the performance of automated data systems and demonstrate that they are improving over time. It provides a definition of quality, particularly with regard to software. Requirements for management and staff to achieve a successful metrics program are discussed. It lists the attributes of high-quality software, then describes the metrics or calculations that can be used to measure these attributes in a particular system. Case studies of some successful metrics programs used by business are presented. The report ends with suggestions on which metrics the VBA should use and the order in which they should be implemented.

  18. Topology on locally finite metric spaces

    E-Print Network [OSTI]

    Capraro, Valerio

    2011-01-01T23:59:59.000Z

    The necessity of a theory of General Topology and, most of all, of Algebraic Topology on locally finite metric spaces comes from many areas of research in both Applied and Pure Mathematics: Molecular Biology, Mathematical Chemistry, Computer Science, Topological Graph Theory and Metric Geometry. In this paper we propose the basic notions of such a theory and some applications: we replace the classical notions of continuous function, homeomorphism and homotopic equivalence with the notions of NPP-function, NPP-local-isomorphism and NPP-homotopy (NPP stands for Nearest Point Preserving); we also introduce the notion of NPP-isomorphism. We construct three invariants under NPP-isomorphisms and, in particular, we define the fundamental group of a locally finite metric space. As first applications, we propose the following: motivated by the longstanding question whether there is a purely metric condition which extends the notion of amenability of a group to any metric space, we propose the property SN (Small Neighb...

  19. Characterization of wind power resource in the United States

    E-Print Network [OSTI]

    Gunturu, Udaya Bhaskar

    Wind resource in the continental and offshore United States has been reconstructed and characterized using metrics that describe, apart from abundance, its availability, persistence and intermittency. The Modern Era ...

  20. adaptive metric knn: Topics by E-print Network

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

    We also prove that the set of points where a path with values in a metric space Maleva, Olga 97 SOBOLEV METRICS ON THE MANIFOLD OF ALL RIEMANNIAN METRICS Mathematics Websites...

  1. Comparative vs. Absolute Performance Assessment with Environmental Sustainability Metrics

    E-Print Network [OSTI]

    High, Karen

    Comparative vs. Absolute Performance Assessment with Environmental Sustainability Metrics Xun Jin Different goals and potential audiences determine that two types of environmental performance assessments metrics can be partitioned into two camps. One suite of metrics aim to assess the environmental

  2. Office of HC Strategy Budget and Performance Metrics (HC-50)...

    Energy Savers [EERE]

    Strategy Budget and Performance Metrics (HC-50) Office of HC Strategy Budget and Performance Metrics (HC-50) Mission Statement and Function Statement The Office of Human Capital...

  3. Design and Development of Performance Metrics for Elite Runners

    E-Print Network [OSTI]

    Mittal, Nikhil R.

    2012-01-01T23:59:59.000Z

    Loss (CDEL) CDEL is another important metric for analyzing runningLoss (CDEL) CDEL is another important metric for analyzing running

  4. Integration of the EM Corporate QA Performance Metrics With Performanc...

    Office of Environmental Management (EM)

    Integration of the EM Corporate QA Performance Metrics With Performance Analysis Process Integration of the EM Corporate QA Performance Metrics With Performance Analysis Process...

  5. Metrics for border management systems.

    SciTech Connect (OSTI)

    Duggan, Ruth Ann

    2009-07-01T23:59:59.000Z

    There are as many unique and disparate manifestations of border systems as there are borders to protect. Border Security is a highly complex system analysis problem with global, regional, national, sector, and border element dimensions for land, water, and air domains. The complexity increases with the multiple, and sometimes conflicting, missions for regulating the flow of people and goods across borders, while securing them for national security. These systems include frontier border surveillance, immigration management and customs functions that must operate in a variety of weather, terrain, operational conditions, cultural constraints, and geopolitical contexts. As part of a Laboratory Directed Research and Development Project 08-684 (Year 1), the team developed a reference framework to decompose this complex system into international/regional, national, and border elements levels covering customs, immigration, and border policing functions. This generalized architecture is relevant to both domestic and international borders. As part of year two of this project (09-1204), the team determined relevant relative measures to better understand border management performance. This paper describes those relative metrics and how they can be used to improve border management systems.

  6. Energy-Momentum Distribution in Weyl Metrics

    E-Print Network [OSTI]

    M. Sharif; Tasnim Fatima

    2005-07-16T23:59:59.000Z

    In this paper, we evaluate energy and momentum density distributions for the Weyl metric by using the well-known prescriptions of Einstein, Landau-Lifshitz, Papaterou and M$\\ddot{o}$ller. The metric under consideration is the static axisymmetric vacuum solution to the Einstein field equations and one of the field equations represents the Laplace equation. Curzon metric is the special case of this spacetime. We find that the energy density is different for each prescription. However, momentum turns out to be constant in each case.

  7. Invariant torsion and G_2-metrics

    E-Print Network [OSTI]

    Diego Conti; Thomas Bruun Madsen

    2014-10-22T23:59:59.000Z

    We introduce and study a notion of invariant intrinsic torsion geometry which appears, for instance, in connection with the Bryant-Salamon metric on the spinor bundle over S^3. This space is foliated by six-dimensional hypersurfaces, each of which carries a particular type of SO(3)-structure; the intrinsic torsion is invariant under SO(3). The last condition is sufficient to imply local homogeneity of such geometries, and this allows us to give a classification. We close the circle by showing that the Bryant-Salamon metric is the unique complete metric with holonomy G_2 that arises from SO(3)-structures with invariant intrinsic torsion.

  8. Clean Cities Annual Metrics Report 2009 (Revised)

    SciTech Connect (OSTI)

    Johnson, C.

    2011-08-01T23:59:59.000Z

    Document provides Clean Cities coalition metrics about the use of alternative fuels; the deployment of alternative fuel vehicles, hybrid electric vehicles (HEVs), and idle reduction initiatives; fuel economy activities; and programs to reduce vehicle miles driven.

  9. Thermodynamic motivations of spherically symmetric static metrics

    E-Print Network [OSTI]

    H. Moradpour; S. Nasirimoghadam

    2015-06-14T23:59:59.000Z

    Bearing the thermodynamic arguments together with the two definitions of mass in mind, we try to find metrics with spherical symmetry. We consider the adiabatic condition along with the Gong-Wang mass, and evaluate the $g_{rr}$ element which points to a null hypersurface. In addition, we generalize the thermodynamics laws to this hypersurface to find its temperature and thus the corresponding surface gravity which enables us to get a relation for the $g_{tt}$ element. Finally, we investigate the mathematical and physical properties of the discovered metric in the Einstein relativity framework which shows that the primary mentioned null hypersurface is an event horizon. We also show that if one considers the Misner-Sharp mass in the calculations, the Schwarzschild metric will be got. The relationship between the two mass definitions in each metric is studied. The results of considering the geometrical surface gravity are also addressed.

  10. Thermodynamic motivations of spherically symmetric static metrics

    E-Print Network [OSTI]

    Moradpour, H

    2015-01-01T23:59:59.000Z

    Bearing the thermodynamic arguments together with the two definitions of mass in mind, we try to find metrics with spherical symmetry. We consider the adiabatic condition along with the Gong-Wang mass, and evaluate the $g_{rr}$ element which points to a null hypersurface. In addition, we generalize the thermodynamics laws to this hypersurface to find its temperature and thus the corresponding surface gravity which enables us to get a relation for the $g_{tt}$ element. Finally, we investigate the mathematical and physical properties of the discovered metric in the Einstein relativity framework which shows that the primary mentioned null hypersurface is an event horizon. We also show that if one considers the Misner-Sharp mass in the calculations, the Schwarzschild metric will be got. The relationship between the two mass definitions in each metric is studied. The results of considering the geometrical surface gravity are also addressed.

  11. Microsoft Word - QER Resilience Metrics - Technical Workshp ...

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

    their progress to-date on developing a long-term roadmap on resilience metrics for electric power, gas, and oil infrastructure and their proposed uses. Location The session...

  12. Contributions to Metric Number Technical Report

    E-Print Network [OSTI]

    Dent, Alexander W.

    Contributions to Metric Number Theory Paul Rowe Technical Report RHUL­MA­2002­2 5 December 2002, Professor Glyn Harman, for sug- gestions of problems to attempt, helpful advice on methods and help

  13. Clean Cities 2011 Annual Metrics Report

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

    Clean Cities 2011 Annual Metrics Report Caley Johnson National Renewable Energy Laboratory Technical Report NRELTP-7A30-56091 December 2012 NREL is a national laboratory of the...

  14. United States

    Office of Legacy Management (LM)

    - I United States Department of Energy D lSCk Al M E R "This book was prepared as an account of work sponsored by an agency of the United States Government. Neither the United...

  15. Metrics for Evaluating the Accuracy of Solar Power Forecasting (Presentation)

    SciTech Connect (OSTI)

    Zhang, J.; Hodge, B.; Florita, A.; Lu, S.; Hamann, H.; Banunarayanan, V.

    2013-10-01T23:59:59.000Z

    This presentation proposes a suite of metrics for evaluating the performance of solar power forecasting.

  16. Product Concept Metrics: a Preliminary Study Working Paper

    E-Print Network [OSTI]

    Takala, Roope

    Metrics for product concept evaluation and screening is a relatively unstudied topic of product development.

  17. Identifying Metrical and Temporal Structure with an Autocorrelation Phase Matrix

    E-Print Network [OSTI]

    Eck, Doug

    - odic and metrical structure in digital audio. Oscillator models (Large and Kolen, 1994; Eck, 2002) have

  18. The dynamics of metric-affine gravity

    SciTech Connect (OSTI)

    Vitagliano, Vincenzo, E-mail: vitaglia@sissa.it [SISSA-International School for Advanced Studies, Via Bonomea 265, 34136 Trieste (Italy); INFN, Sez. di Trieste, Via Valerio 2, 34127 Trieste (Italy); Sotiriou, Thomas P., E-mail: T.Sotiriou@damtp.cam.ac.uk [Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom); Liberati, Stefano, E-mail: liberati@sissa.it [SISSA-International School for Advanced Studies, Via Bonomea 265, 34136 Trieste (Italy); INFN, Sez. di Trieste, Via Valerio 2, 34127 Trieste (Italy)

    2011-05-15T23:59:59.000Z

    Highlights: > The role and the dynamics of the connection in metric-affine theories is explored. > The most general second order action does not lead to a dynamical connection. > Including higher order invariants excites new degrees of freedom in the connection. > f(R) actions are also discussed and shown to be a non- representative class. - Abstract: Metric-affine theories of gravity provide an interesting alternative to general relativity: in such an approach, the metric and the affine (not necessarily symmetric) connection are independent quantities. Furthermore, the action should include covariant derivatives of the matter fields, with the covariant derivative naturally defined using the independent connection. As a result, in metric-affine theories a direct coupling involving matter and connection is also present. The role and the dynamics of the connection in such theories is explored. We employ power counting in order to construct the action and search for the minimal requirements it should satisfy for the connection to be dynamical. We find that for the most general action containing lower order invariants of the curvature and the torsion the independent connection does not carry any dynamics. It actually reduces to the role of an auxiliary field and can be completely eliminated algebraically in favour of the metric and the matter field, introducing extra interactions with respect to general relativity. However, we also show that including higher order terms in the action radically changes this picture and excites new degrees of freedom in the connection, making it (or parts of it) dynamical. Constructing actions that constitute exceptions to this rule requires significant fine tuned and/or extra a priori constraints on the connection. We also consider f(R) actions as a particular example in order to show that they constitute a distinct class of metric-affine theories with special properties, and as such they cannot be used as representative toy theories to study the properties of metric-affine gravity.

  19. Implementing the Data Center Energy Productivity Metric

    SciTech Connect (OSTI)

    Sego, Landon H.; Marquez, Andres; Rawson, Andrew; Cader, Tahir; Fox, Kevin M.; Gustafson, William I.; Mundy, Christopher J.

    2012-10-01T23:59:59.000Z

    As data centers proliferate in both size and number, their energy efficiency is becoming increasingly important. We discuss the properties of a number of the proposed metrics of energy efficiency and productivity. In particular, we focus on the Data Center Energy Productivity (DCeP) metric, which is the ratio of useful work produced by the data center to the energy consumed performing that work. We describe our approach for using DCeP as the principal outcome of a designed experiment using a highly instrumented, high performance computing data center. We found that DCeP was successful in clearly distinguishing between different operational states in the data center, thereby validating its utility as a metric for identifying configurations of hardware and software that would improve (or even maximize) energy productivity. We also discuss some of the challenges and benefits associated with implementing the DCeP metric, and we examine the efficacy of the metric in making comparisons within a data center and among data centers.

  20. Metric Cubes in Some Music of Brahms

    E-Print Network [OSTI]

    Murphy, Scott

    2009-01-01T23:59:59.000Z

    Pl ea se n ot e th at t hi s is a n au th or -p ro du ce d PD F of a n ar ti cl e ac ce pt ed fo r pu bl ic at io n fo llo w in g pe er r ev ie w . T he p ub lis he r ve rs io n is a va ila bl e on it s si te . [This...: Murphy, Scott. “Metric Cubes in Some Music of Brahms,” Journal of Music Theory 53/1 (Spring, 2009): 1-56. DOI:10.1215/00222909-2009-020. Abstract: The metric cube is a kind of graph of meters proposed as a complement to the types of metric spaces...

  1. Enhanced Accident Tolerant LWR Fuels: Metrics Development

    SciTech Connect (OSTI)

    Shannon Bragg-Sitton; Lori Braase; Rose Montgomery; Chris Stanek; Robert Montgomery; Lance Snead; Larry Ott; Mike Billone

    2013-09-01T23:59:59.000Z

    The Department of Energy (DOE) Fuel Cycle Research and Development (FCRD) Advanced Fuels Campaign (AFC) is conducting research and development on enhanced Accident Tolerant Fuels (ATF) for light water reactors (LWRs). This mission emphasizes the development of novel fuel and cladding concepts to replace the current zirconium alloy-uranium dioxide (UO2) fuel system. The overall mission of the ATF research is to develop advanced fuels/cladding with improved performance, reliability and safety characteristics during normal operations and accident conditions, while minimizing waste generation. The initial effort will focus on implementation in operating reactors or reactors with design certifications. To initiate the development of quantitative metrics for ATR, a LWR Enhanced Accident Tolerant Fuels Metrics Development Workshop was held in October 2012 in Germantown, MD. This paper summarizes the outcome of that workshop and the current status of metrics development for LWR ATF.

  2. Support for non-locking parallel reception of packets belonging to a single memory reception FIFO

    DOE Patents [OSTI]

    Chen, Dong (Yorktown Heights, NY); Heidelberger, Philip (Yorktown Heights, NY); Salapura, Valentina (Yorktown Heights, NY); Senger, Robert M. (Yorktown Heights, NY); Steinmacher-Burow, Burkhard (Boeblingen, DE); Sugawara, Yutaka (Yorktown Heights, NY)

    2011-01-27T23:59:59.000Z

    A method and apparatus for distributed parallel messaging in a parallel computing system. A plurality of DMA engine units are configured in a multiprocessor system to operate in parallel, one DMA engine unit for transferring a current packet received at a network reception queue to a memory location in a memory FIFO (rmFIFO) region of a memory. A control unit implements logic to determine whether any prior received packet destined for that rmFIFO is still in a process of being stored in the associated memory by another DMA engine unit of the plurality, and prevent the one DMA engine unit from indicating completion of storing the current received packet in the reception memory FIFO (rmFIFO) until all prior received packets destined for that rmFIFO are completely stored by the other DMA engine units. Thus, there is provided non-locking support so that multiple packets destined for a single rmFIFO are transferred and stored in parallel to predetermined locations in a memory.

  3. Spatial Metrics to Study Urban Patterns in Growing and Shrinking Cities

    E-Print Network [OSTI]

    Reis, José P.; Silva, Elisabete A.; Pinho, Paulo

    2015-06-10T23:59:59.000Z

    of smart cities, mainly seen on Western Europe and on the largest US urban areas; to the urban decline of former US and Western European mining and industrial cities and to the severe decline of important Eastern European agglomerations. After many...   Title: Spatial Metrics to Study Urban Patterns in Growing and Shrinking Cities Authors: José P. Reis(corresponding author) University of Cambridge, Department of Land Economy 19 Silver Street, Cambridge, CB3 9EP (United Kingdom) jpdffr2@cam...

  4. Metrics for a Sustainable Produced By

    E-Print Network [OSTI]

    Levinson, David M.

    Metrics for a Sustainable EcoVillage #12;2 Produced By: Nam Nguyen Master of Urban and Regional Project Manager Project for Pride in Living (PPL) Jeffrey Skrenes Housing Director Hawthorne Neighborhood Council Photo source: Unless otherwise noted, photos are provided by People for Pride in Living

  5. Clean Cities 2010 Annual Metrics Report

    SciTech Connect (OSTI)

    Johnson, C.

    2012-10-01T23:59:59.000Z

    This report details the petroleum savings and vehicle emissions reductions achieved by the U.S. Department of Energy's Clean Cities program in 2010. The report also details other performance metrics, including the number of stakeholders in Clean Cities coalitions, outreach activities by coalitions and national laboratories, and alternative fuel vehicles deployed.

  6. Einstein Product Metrics in Diverse Dimensions

    E-Print Network [OSTI]

    K. R. Koehler

    2006-01-27T23:59:59.000Z

    We use direct products of Einstein Metrics to construct new solutions to Einstein's Equations with cosmological constant. We illustrate the technique with three families of solutions having the geometries Kerr/de Sitter X de Sitter, Kerr/anti-de Sitter X anti-de Sitter and Kerr X Kerr.

  7. Einstein Metrics on Rational Homology 7-Spheres

    E-Print Network [OSTI]

    Einstein Metrics on Rational Homology 7-Spheres Charles P. Boyer Krzysztof Galicki Michael Nakamaye Abstract: In this paper we demonstrate the existence of Sasakian-Einstein structures on certain 2-connected rational homology 7-spheres. These appear to be the #12;rst non-regular examples of Sasakian-Einstein

  8. An Attack Surface Metric Pratyusa K. Manadhata

    E-Print Network [OSTI]

    K. Manadhata This research was sponsored in part by the Defense Advanced Research Project Agency by the National Science Foundation under grants no. CCR-0121547 and CNS-0433540, SAP Labs, LLC under award no metrics has recently become more pressing. In this thesis, we introduce the measure of a software system

  9. Fourier Transform, Riemann Surfaces and Indefinite Metric

    E-Print Network [OSTI]

    Fominov, Yakov

    Fourier Transform, Riemann Surfaces and Indefinite Metric P. G. Grinevich, S.P.Novikov Zakharov Park, College Park, USA #12;What is Fourier Transform in Riemann Surfaces? Which Problems need it? Discrete Analog of The Fourier/Laurent bases in Riemann Sur- faces was constructed by Krichever-Novikov (KN

  10. Performance Metrics Research Project - Final Report

    SciTech Connect (OSTI)

    Deru, M.; Torcellini, P.

    2005-10-01T23:59:59.000Z

    NREL began work for DOE on this project to standardize the measurement and characterization of building energy performance. NREL's primary research objectives were to determine which performance metrics have greatest value for determining energy performance and to develop standard definitions and methods of measuring and reporting that performance.

  11. Clean Cities 2011 Annual Metrics Report

    SciTech Connect (OSTI)

    Johnson, C.

    2012-12-01T23:59:59.000Z

    This report details the petroleum savings and vehicle emissions reductions achieved by the U.S. Department of Energy's Clean Cities program in 2011. The report also details other performance metrics, including the number of stakeholders in Clean Cities coalitions, outreach activities by coalitions and national laboratories, and alternative fuel vehicles deployed.

  12. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    174 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States 94% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment

  13. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    174 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States 95% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment

  14. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    172 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States. About 95% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment

  15. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2, unless otherwise noted)

    E-Print Network [OSTI]

    178 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2, unless proprietary data. Based on average prices, the value of titanium mineral concentrates consumed in the United is zircon. About 95% of titanium mineral concentrates were consumed by five titanium pigment producers

  16. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    178 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States 94% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment

  17. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    172 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States 94% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment

  18. UNIT NUMBER:

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

    193 UNIT NUMBER: 197 UNIT NAME: CONCRETE RUBBLE PILE (30) REGULATORY STATUS: AOC LOCATION: Outside plant security fence, north of the plant on Big Bayou Creek on private property....

  19. Evaluation Criteria for Human-Automation Performance Metrics

    E-Print Network [OSTI]

    Pina, Patricia Elena

    Previous research has identified broad metric classes for human-automation performance to facilitate metric selection, as well as understanding and comparison of research results. However, there is still lack of an objective ...

  20. Ideal Based Cyber Security Technical Metrics for Control Systems

    SciTech Connect (OSTI)

    W. F. Boyer; M. A. McQueen

    2007-10-01T23:59:59.000Z

    Much of the world's critical infrastructure is at risk from attack through electronic networks connected to control systems. Security metrics are important because they provide the basis for management decisions that affect the protection of the infrastructure. A cyber security technical metric is the security relevant output from an explicit mathematical model that makes use of objective measurements of a technical object. A specific set of technical security metrics are proposed for use by the operators of control systems. Our proposed metrics are based on seven security ideals associated with seven corresponding abstract dimensions of security. We have defined at least one metric for each of the seven ideals. Each metric is a measure of how nearly the associated ideal has been achieved. These seven ideals provide a useful structure for further metrics development. A case study shows how the proposed metrics can be applied to an operational control system.

  1. Financial Metrics Data Collection Protocol, Version 1.0

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Gorrissen, Willy J.; Wang, Na

    2010-04-30T23:59:59.000Z

    Brief description of data collection process and plan that will be used to collect financial metrics associated with sustainable design.

  2. Complex Systems--Goals & Metrics Long-term Objective

    E-Print Network [OSTI]

    Hayden, Nancy J.

    ://www.uvm.edu/cmplxsys/. Moving forward--Goals, Metrics, and Resources: Approach: Kaizen. Measurability is ke

  3. Metrics Are Fitness Functions Too Mark Harman John Clark

    E-Print Network [OSTI]

    Singer, Jeremy

    that there is an alternative, complementary, view of a metric: as a fitness function, used to guide a search for optimal' (MAFF) approach offers a number of additional benefits to metrics research and practice because systems. It describes the properties of a metric which make it a good fitness function and explains

  4. Characterization of Wind Power Resource in the United States and its Intermittency

    E-Print Network [OSTI]

    Gunturu, U.B.

    Wind resource in the continental and offshore United States has been reconstructed and characterized using metrics that describe, apart from abundance, its availability, persistence and intermittency. The Modern Era ...

  5. Metrics for measuring distances in configuration spaces

    SciTech Connect (OSTI)

    Sadeghi, Ali, E-mail: ali.sadeghi@unibas.ch; Ghasemi, S. Alireza; Schaefer, Bastian; Mohr, Stephan; Goedecker, Stefan [Department of Physics, Universität Basel, Klingelbergstr. 82, 4056 Basel (Switzerland)] [Department of Physics, Universität Basel, Klingelbergstr. 82, 4056 Basel (Switzerland); Lill, Markus A. [Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907 (United States)] [Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907 (United States)

    2013-11-14T23:59:59.000Z

    In order to characterize molecular structures we introduce configurational fingerprint vectors which are counterparts of quantities used experimentally to identify structures. The Euclidean distance between the configurational fingerprint vectors satisfies the properties of a metric and can therefore safely be used to measure dissimilarities between configurations in the high dimensional configuration space. In particular we show that these metrics are a perfect and computationally cheap replacement for the root-mean-square distance (RMSD) when one has to decide whether two noise contaminated configurations are identical or not. We introduce a Monte Carlo approach to obtain the global minimum of the RMSD between configurations, which is obtained from a global minimization over all translations, rotations, and permutations of atomic indices.

  6. Metric perturbation theory of quantum dynamics

    E-Print Network [OSTI]

    Antony L Tambyrajah

    2006-10-06T23:59:59.000Z

    A theory of quantum dynamics based on a discrete structure underlying the space time manifold is developed for single particles. It is shown that at the micro domain the interaction of particles with the underlying discrete structure results in the quantum space time manifold. Regarding the resulting quantum space-time as perturbation from the Lorentz metric it is shown it is possible to discuss the dynamics of particles in the quantum domain.

  7. Smart Grid Status and Metrics Report

    SciTech Connect (OSTI)

    Balducci, Patrick J.; Weimar, Mark R.; Kirkham, Harold

    2014-07-01T23:59:59.000Z

    To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived from the National Energy Technology Laboratory Modern Grid Strategy. It measures 21 metrics to provide insight into the grid’s capacity to embody these characteristics. This report looks across a spectrum of smart grid concerns to measure the status of smart grid deployment and impacts.

  8. Optical metrics and birefringence of anisotropic media

    E-Print Network [OSTI]

    Alexander B. Balakin; Winfried Zimdahl

    2005-04-12T23:59:59.000Z

    The material tensor of linear response in electrodynamics is constructed out of products of two symmetric second rank tensor fields which in the approximation of geometrical optics and for uniaxial symmetry reduce to "optical" metrics, describing the phenomenon of birefringence. This representation is interpreted in the context of an underlying internal geometrical structure according to which the symmetric tensor fields are vectorial elements of an associated two-dimensional space.

  9. Variable metric methods for automatic history matching

    E-Print Network [OSTI]

    Armasu, Razvan

    1985-01-01T23:59:59.000Z

    . Automatic history matching codes presently in use employ steepest descent with optimal control, and although they were proven superior to others, their performance is not entirely satisfactory due to the poor rate of convergence as the performance index... rates of convergence when compared to the steepest descent They can be made to start out as steepest descent and end up as a second order algorithm, using functional and gradient information only, In this work several variable metric algorithms...

  10. UNIT NUMBER

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

    4 UNIT NAME C-611 Underaround Diesel Tank REGULATORY STATUS: AOC LOCATION: Immediately southeast of C-611 APPROXIMATE DIMENSIONS: 1000 gallon FUNCTION: Diesel storage OPERATIONAL...

  11. Evaluation of metrics and baselines for tracking greenhouse gas emissions trends: Recommendations for the California climate action registry

    SciTech Connect (OSTI)

    Price, Lynn; Murtishaw, Scott; Worrell, Ernst

    2003-06-01T23:59:59.000Z

    Executive Summary: The California Climate Action Registry, which was initially established in 2000 and began operation in Fall 2002, is a voluntary registry for recording annual greenhouse gas (GHG) emissions. The purpose of the Registry is to assist California businesses and organizations in their efforts to inventory and document emissions in order to establish a baseline and to document early actions to increase energy efficiency and decrease GHG emissions. The State of California has committed to use its ''best efforts'' to ensure that entities that establish GHG emissions baselines and register their emissions will receive ''appropriate consideration under any future international, federal, or state regulatory scheme relating to greenhouse gas emissions.'' Reporting of GHG emissions involves documentation of both ''direct'' emissions from sources that are under the entity's control and indirect emissions controlled by others. Electricity generated by an off-site power source is consider ed to be an indirect GHG emission and is required to be included in the entity's report. Registry participants include businesses, non-profit organizations, municipalities, state agencies, and other entities. Participants are required to register the GHG emissions of all operations in California, and are encouraged to report nationwide. For the first three years of participation, the Registry only requires the reporting of carbon dioxide (CO2) emissions, although participants are encouraged to report the remaining five Kyoto Protocol GHGs (CH4, N2O, HFCs, PFCs, and SF6). After three years, reporting of all six Kyoto GHG emissions is required. The enabling legislation for the Registry (SB 527) requires total GHG emissions to be registered and requires reporting of ''industry-specific metrics'' once such metrics have been adopted by the Registry. The Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) was asked to provide technical assistance to the California Energy Commission (Energy Commission) related to the Registry in three areas: (1) assessing the availability and usefulness of industry-specific metrics, (2) evaluating various methods for establishing baselines for calculating GHG emissions reductions related to specific actions taken by Registry participants, and (3) establishing methods for calculating electricity CO2 emission factors. The third area of research was completed in 2002 and is documented in Estimating Carbon Dioxide Emissions Factors for the California Electric Power Sector (Marnay et al., 2002). This report documents our findings related to the first areas of research. For the first area of research, the overall objective was to evaluate the metrics, such as emissions per economic unit or emissions per unit of production that can be used to report GHG emissions trends for potential Registry participants. This research began with an effort to identify methodologies, benchmarking programs, inventories, protocols, and registries that u se industry-specific metrics to track trends in energy use or GHG emissions in order to determine what types of metrics have already been developed. The next step in developing industry-specific metrics was to assess the availability of data needed to determine metric development priorities. Berkeley Lab also determined the relative importance of different potential Registry participant categories in order to asses s the availability of sectoral or industry-specific metrics and then identified industry-specific metrics in use around the world. While a plethora of metrics was identified, no one metric that adequately tracks trends in GHG emissions while maintaining confidentiality of data was identified. As a result of this review, Berkeley Lab recommends the development of a GHG intensity index as a new metric for reporting and tracking GHG emissions trends.Such an index could provide an industry-specific metric for reporting and tracking GHG emissions trends to accurately reflect year to year changes while protecting proprietary data. This GHG intensity index changes

  12. Display Case Items This bow tie belonged to Dr. Edward M. Schoenborn, Jr. The Eastern North Carolina Section of

    E-Print Network [OSTI]

    Velev, Orlin D.

    was manufactured by Mine Safety Appliances Company Manometer This manometer was manufactured by Precision Thermometer & Instrument Company. North Carolina State College of Agriculture and Engineering Diploma's daughter. Slide Rule ­ from the 30's This Keuffel & Esser Log Log Duplex Decitrig slide rule belonged

  13. Measurable Control System Security through Ideal Driven Technical Metrics

    SciTech Connect (OSTI)

    Miles McQueen; Wayne Boyer; Sean McBride; Marie Farrar; Zachary Tudor

    2008-01-01T23:59:59.000Z

    The Department of Homeland Security National Cyber Security Division supported development of a small set of security ideals as a framework to establish measurable control systems security. Based on these ideals, a draft set of proposed technical metrics was developed to allow control systems owner-operators to track improvements or degradations in their individual control systems security posture. The technical metrics development effort included review and evaluation of over thirty metrics-related documents. On the bases of complexity, ambiguity, or misleading and distorting effects the metrics identified during the reviews were determined to be weaker than necessary to aid defense against the myriad threats posed by cyber-terrorism to human safety, as well as to economic prosperity. Using the results of our metrics review and the set of security ideals as a starting point for metrics development, we identified thirteen potential technical metrics - with at least one metric supporting each ideal. Two case study applications of the ideals and thirteen metrics to control systems were then performed to establish potential difficulties in applying both the ideals and the metrics. The case studies resulted in no changes to the ideals, and only a few deletions and refinements to the thirteen potential metrics. This led to a final proposed set of ten core technical metrics. To further validate the security ideals, the modifications made to the original thirteen potential metrics, and the final proposed set of ten core metrics, seven separate control systems security assessments performed over the past three years were reviewed for findings and recommended mitigations. These findings and mitigations were then mapped to the security ideals and metrics to assess gaps in their coverage. The mappings indicated that there are no gaps in the security ideals and that the ten core technical metrics provide significant coverage of standard security issues with 87% coverage. Based on the two case studies and evaluation of the seven assessments, the security ideals demonstrated their value in guiding security thinking. Further, the final set of core technical metrics has been demonstrated to be both usable in the control system environment and provide significant coverage of standard security issues.

  14. UNIT NUMBER

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

    3 C-750B Diesel UST UNIT NAME REGULATORY STATUS: AOC LOCATION: Southeast corner of C-750 APPROXIMATE DIMENSIONS: 10,000 gallon FUNCTION: Diesel storage OPERATIONAL STATUS: Removed...

  15. Software Modeling of S-Metrics Visualizer: Synergetic Interactive Metrics Visualization Tool

    E-Print Network [OSTI]

    Dascalu, Sergiu

    utilization, earned-value cost and schedule performance) to provide enhanced management insight in a timely and visualization tool for Windows. Throughout the software development process managers must be aware problems that occur throughout the project's evolution. Software metrics help managers to better monitor

  16. A study on metrics for simulation programming languages

    E-Print Network [OSTI]

    Nallapati, Kumar V.

    1986-01-01T23:59:59.000Z

    proposes models for metrics specially designed for use in simulation modeling which can help in evaluating the performance and resource requirements of simulation programming languages. Certain existing software metrics for general purpose programming... GPSS and SIMAN. With these characteristics and the existing metrics, models were developed for evaluation of software and hardware requirements for a given simulation problem. ACKNOWLEDGEMENTS I thank Dr. Sallie Sheppard, Chairperson of my committee...

  17. Spherically Symmetric, Metrically Static, Isolated Systems in Quasi-Metric Gravity

    E-Print Network [OSTI]

    Dag Østvang

    2014-05-09T23:59:59.000Z

    The gravitational field exterior respectively interior to a spherically symmetric, isolated body made of perfect fluid is examined within the quasi-metric framework (QMF). It is required that the gravitational field is "metrically static", meaning that it is static except for the effects of the global cosmic expansion on the spatial geometry. Dynamical equations for the gravitational field are set up and an exact solution is found for the exterior part. Besides, equations of motion applying to inertial test particles moving in the exterior gravitational field are set up. By construction the gravitational field of the system is not static with respect to the cosmic expansion. This means that the radius of the source increases and that distances between circular orbits of inertial test particles increase according to the Hubble law. Moreover it is shown that if this model of an expanding gravitational field is taken to represent the gravitational field of the Sun (or isolated planetary systems), this has no serious consequences for observational aspects of planetary motion. On the contrary some observational facts of the Earth-Moon system are naturally explained within the QMF. Finally the QMF predicts different secular increases for two different gravitational coupling parameters. But such secular changes are neither present in the Newtonian limit of the quasi-metric equations of motion nor in the Newtonian limit of the quasi-metric field equations valid inside metrically static sources. Thus standard interpretations of space experiments testing the secular variation of G are explicitly theory-dependent and do not apply to the QMF.

  18. Resilient Control Systems Practical Metrics Basis for Defining Mission Impact

    SciTech Connect (OSTI)

    Craig G. Rieger

    2014-08-01T23:59:59.000Z

    "Resilience” describes how systems operate at an acceptable level of normalcy despite disturbances or threats. In this paper we first consider the cognitive, cyber-physical interdependencies inherent in critical infrastructure systems and how resilience differs from reliability to mitigate these risks. Terminology and metrics basis are provided to integrate the cognitive, cyber-physical aspects that should be considered when defining solutions for resilience. A practical approach is taken to roll this metrics basis up to system integrity and business case metrics that establish “proper operation” and “impact.” A notional chemical processing plant is the use case for demonstrating how the system integrity metrics can be applied to establish performance, and

  19. Enterprise performance measurement system : metric design framework and tools

    E-Print Network [OSTI]

    Teo, Kai Siang

    2013-01-01T23:59:59.000Z

    Existing metric selection methodologies and performance measurement frameworks provide practicing managers with good checklists and tools to evaluate and design their enterprise performance measurement systems (EPMS) and ...

  20. On the Riemann Extension of the Schwarzschild Metric

    E-Print Network [OSTI]

    V. Dryuma

    2004-04-30T23:59:59.000Z

    Some solutions of the Einstein equations for the eight-dimensional Riemann extension of the classical four-dimensional Schwarzschild metric are considered.

  1. Hölder Metric Subregularity with Applications to Proximal Point Method

    E-Print Network [OSTI]

    2012-02-02T23:59:59.000Z

    Feb 2, 2012 ... analysis and generalized differentiation, we derive neighborhood and ...... failure of metric subregularity in the above very natural sense.

  2. Summary of Proposed Metrics - QER Technical Workshop on Energy...

    Energy Savers [EERE]

    resources available) to enable decisions - Prototype metrics - Use Cases created for electric power, oil, and natural gas systems o Applies common principles across energy...

  3. On isotropic metric of Schwarzschild solution of Einstein equation

    E-Print Network [OSTI]

    T. Mei

    2006-10-24T23:59:59.000Z

    The known static isotropic metric of Schwarzschild solution of Einstein equation cannot cover with the range of r<2MG, a new isotropic metric of Schwarzschild solution is obtained. The new isotropic metric has the characters: (1) It is dynamic and periodic. (2) It has infinite singularities of the spacetime. (3) It cannot cover with the range of 0metric.

  4. Comparing Resource Adequacy Metrics and Their Influence on Capacity Value: Preprint

    SciTech Connect (OSTI)

    Ibanez, E.; Milligan, M.

    2014-04-01T23:59:59.000Z

    Traditional probabilistic methods have been used to evaluate resource adequacy. The increasing presence of variable renewable generation in power systems presents a challenge to these methods because, unlike thermal units, variable renewable generation levels change over time because they are driven by meteorological events. Thus, capacity value calculations for these resources are often performed to simple rules of thumb. This paper follows the recommendations of the North American Electric Reliability Corporation?s Integration of Variable Generation Task Force to include variable generation in the calculation of resource adequacy and compares different reliability metrics. Examples are provided using the Western Interconnection footprint under different variable generation penetrations.

  5. Fuel Cell Distributed Power Package Unit: Fuel Processing Based On

    E-Print Network [OSTI]

    Fuel Cell Distributed Power Package Unit: Fuel Processing Based On Autothermal Cyclic Reforming have been metAll milestones have been met #12;4 Autothermal Cyclic Reforming for PEM Fuel Cell CH4 + H2 is not mixed with fuel70-80%High H2 Purity from Reformer AdvantagesAutothermal Cyclic Reformer (ACR) Metric #12

  6. Einstein metrics and Brans-Dicke superfields

    SciTech Connect (OSTI)

    Marques, S.

    1988-01-01T23:59:59.000Z

    It is obtained here a space conformal to the Einstein space-time, making the transition from an internal bosonic space, constructed with the Majorana constant spinors in the Majorana representation, to a bosonic ''superspace,'' through the use of Einstein vierbeins. These spaces are related to a Grassmann space constructed with the Majorana spinors referred to above, where the ''metric'' is a function of internal bosonic coordinates. The conformal function is a scale factor in the zone of gravitational radiation. A conformal function dependent on space-time coordinates can be constructed in that region when we introduce Majorana spinors which are functions of those coordinates. With this we obtain a scalar field of Brans-Dicke type. 11 refs.

  7. Symplectic fusion rings and their metric

    E-Print Network [OSTI]

    D. Gepner; A. Schwimmer

    1992-04-08T23:59:59.000Z

    The fusion of fields in a rational conformal field theory gives rise to a ring structure which has a very particular form. All such rings studied so far were shown to arise from some potentials. In this paper the fusion rings of the WZW models based on the symplectic group are studied. It is shown that they indeed arise from potentials which are described. These potentials give rise to new massive perturbations of superconformal hermitian symmetric models. The metric of the perturbation is computed and is shown to be given by solutions of the sinh--gordon equation. The kink structure of the theories is described, and it is argued that these field theories are integrable. The $S$ matrices for the fusion theories are argued to be non--minimal extensions of the $G_k\\times G_1/ G_{k+1}$ $S$ matrices with the adjoint perturbation, in the case of $G=SU(N)$.

  8. Clean Cities 2013 Annual Metrics Report

    SciTech Connect (OSTI)

    Johnson, C.; Singer, M.

    2014-10-01T23:59:59.000Z

    Each year, the U.S. Department of Energy asks its Clean Cities program coordinators to submit annual reports of their activities and accomplishments for the previous calendar year. Data and information are submitted via an online database that is maintained as part of the Alternative Fuels Data Center (AFDC) at the National Renewable Energy Laboratory (NREL). Coordinators submit a range of data that characterize the membership, funding, projects, and activities of their coalitions. They also submit data about sales of alternative fuels, deployment of alternative fuel vehicles (AFVs) and hybrid electric vehicles (HEVs), idle-reduction (IR) initiatives, fuel economy activities, and programs to reduce vehicle miles traveled (VMT). NREL analyzes the data and translates them into petroleum-use reduction impacts, which are summarized in this 2013 Annual Metrics Report.

  9. Bi-metric Gravity and "Dark Matter"

    E-Print Network [OSTI]

    I. T. Drummond

    2000-08-18T23:59:59.000Z

    We present a bi-metric theory of gravity containing a length scale of galactic size. For distances less than this scale the theory satisfies the standard tests of General Relativity. For distances greater than this scale the theory yields an effective gravitational constant much larger than the locally observed value of Newton's constant. The transition from one regime to the other through the galactic scale can explain the observed rotation curves of galaxies and hence the effects normally attributed to the presence of dark matter. Phenomena on an extragalactic scale such as galactic clusters and the expansion of the universe are controlled by the enhanced gravitational coupling. This provides an explanation of the missing matter normally invoked to account for the observed value of Hubble's constant in relation to observed matter.

  10. Distance Metric Learning for Large Margin Nearest Neighbor Classification

    E-Print Network [OSTI]

    Weinberger, Kilian

    Distance Metric Learning for Large Margin Nearest Neighbor Classification Kilian Q. Weinberger}@cis.upenn.edu Abstract We show how to learn a Mahanalobis distance metric for k-nearest neigh- bor (kNN) classification in kNN classification--for example, achieving a test error rate of 1.3% on the MNIST handwritten digits

  11. Cortical Hemisphere Registration Via Large Deformation Diffeomorphic Metric Curve

    E-Print Network [OSTI]

    Qiu, Anqi

    on the relation between individual brains and the atlas. This is a powerful approach allowing us to study a largeCortical Hemisphere Registration Via Large Deformation Diffeomorphic Metric Curve Mapping Anqi Qiu1 Science, Johns Hopkins University Abstract. We present large deformation diffeomorphic metric curve

  12. Comparison of Distance Metrics for Hierarchical Data in Medical Databases

    E-Print Network [OSTI]

    Aickelin, Uwe

    sufficiently well in clustering the patient population using k-means clustering algorithm. I. INTRODUCTIONComparison of Distance Metrics for Hierarchical Data in Medical Databases Diman Hassan, Uwe of these metrics have been compared to other measures to find their efficiency. In [5], a comparison has been made

  13. Metrics for Evaluating Conventional and Renewable Energy Technologies (Presentation)

    SciTech Connect (OSTI)

    Mann, M. K.

    2013-01-01T23:59:59.000Z

    With numerous options for the future of natural gas, how do we know we're going down the right path? How do we designate a metric to measure and demonstrate change and progress, and how does that metric incorporate all stakeholders and scenarios?

  14. Estimation of Photovoltaic System Reliability and Performance Metrics

    E-Print Network [OSTI]

    Liberzon, Daniel

    1 Estimation of Photovoltaic System Reliability and Performance Metrics Sairaj V. Dhople, Student reliability and perfor- mance analysis of grid-tied photovoltaic (PV) systems is for- mulated using Markov and energy yield, and reliability metrics such as availability. The paper also provides an analytical method

  15. The Posterior metric and the Goodness of Gibbsianness

    E-Print Network [OSTI]

    Külske, Christof

    exhibit the minimal necessary structure for such double-layer systems. As- suming no a priori metric, specification, posterior metric. University of Groningen, Institute of Mathematics and Computing Science, Dobrushin uniqueness has a lot of advantages, being not very technical, but very general, requiring little

  16. advanced web metrics: Topics by E-print Network

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

    web metrics First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 A Survey of Web Metrics DEVANSHU DHYANI...

  17. (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China,

    E-Print Network [OSTI]

    100 LITHIUM (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China, Russia, and the United States were large producers also. Australia, Canada, and Zimbabwe were major producers of lithium

  18. (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China,

    E-Print Network [OSTI]

    98 LITHIUM (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China, Russia, and the United States were large producers also. Australia, Canada, and Zimbabwe were major producers of lithium

  19. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: Chile was the leading lithium chemical producer in the world; Argentina, China,

    E-Print Network [OSTI]

    100 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: Chile was the leading lithium chemical producer in the world; Argentina, China, Russia, and the United States also were major producers. Australia, Canada, and Zimbabwe were major producers of lithium

  20. (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China,

    E-Print Network [OSTI]

    96 LITHIUM (Data in metric tons of lithium content, unless otherwise noted) Domestic Production and Use: Chile was the largest lithium chemical producer in the world; Argentina, China, Russia, and the United States were large producers also. Australia, Canada, and Zimbabwe were major producers of lithium

  1. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: Chile was the leading lithium chemical producer in the world; Argentina, China,

    E-Print Network [OSTI]

    98 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: Chile was the leading lithium chemical producer in the world; Argentina, China, Russia, and the United States also were major producers. Australia, Canada, and Zimbabwe were major producers of lithium

  2. (Data in metric tons of tungsten content, unless otherwise noted) Domestic Production and Use: In 1998, little if any tungsten concentrate was produced from U.S. mines.

    E-Print Network [OSTI]

    184 TUNGSTEN (Data in metric tons of tungsten content, unless otherwise noted) Domestic Production and Use: In 1998, little if any tungsten concentrate was produced from U.S. mines. Approximately 10 companies in the United States processed tungsten concentrates, ammonium paratungstate, tungsten oxide, and

  3. Practical Diagnostics for Evaluating Residential Commissioning Metrics

    SciTech Connect (OSTI)

    Wray, Craig; Walker, Iain; Siegel, Jeff; Sherman, Max

    2002-06-11T23:59:59.000Z

    In this report, we identify and describe 24 practical diagnostics that are ready now to evaluate residential commissioning metrics, and that we expect to include in the commissioning guide. Our discussion in the main body of this report is limited to existing diagnostics in areas of particular concern with significant interactions: envelope and HVAC systems. These areas include insulation quality, windows, airtightness, envelope moisture, fan and duct system airflows, duct leakage, cooling equipment charge, and combustion appliance backdrafting with spillage. Appendix C describes the 83 other diagnostics that we have examined in the course of this project, but that are not ready or are inappropriate for residential commissioning. Combined with Appendix B, Table 1 in the main body of the report summarizes the advantages and disadvantages of all 107 diagnostics. We first describe what residential commissioning is, its characteristic elements, and how one might structure its process. Our intent in this discussion is to formulate and clarify these issues, but is largely preliminary because such a practice does not yet exist. Subsequent sections of the report describe metrics one can use in residential commissioning, along with the consolidated set of 24 practical diagnostics that the building industry can use now to evaluate them. Where possible, we also discuss the accuracy and usability of diagnostics, based on recent laboratory work and field studies by LBNL staff and others in more than 100 houses. These studies concentrate on evaluating diagnostics in the following four areas: the DeltaQ duct leakage test, air-handler airflow tests, supply and return grille airflow tests, and refrigerant charge tests. Appendix A describes those efforts in detail. In addition, where possible, we identify the costs to purchase diagnostic equipment and the amount of time required to conduct the diagnostics. Table 1 summarizes these data. Individual equipment costs for the 24 practical diagnostics range from a few hundred dollars to many thousands of dollars. The higher costs are associated with infrared thermography and state-of-the-art automated diagnostic systems. Most tests can be performed in one hour or less, using equipment priced toward the lower end of the cost spectrum.

  4. Weighting and Bayes Nets for Rollup of Surveillance Metrics

    SciTech Connect (OSTI)

    Henson, Kriste [Los Alamos National Laboratory; Sentz, Kari [Los Alamos National Laboratory; Hamada, Michael [Los Alamos National Laboratory

    2012-04-30T23:59:59.000Z

    The LANL IKE team proposes that the surveillance metrics for several data stream that are used to detect the same failure mode be weighted. Similarly, the failure mode metrics are weighted to obtain a subsystem metric. E.g., if there n data streams (nodes 1-n), the failure mode (node 0) metric is obtained as M{sub 0} = w{sub 1}M{sub 1} + {hor_ellipsis} + w{sub n}M{sub n}, where {Sigma}{sub i=1}{sup n} w{sub i} = 1. This proposal has been implemented with Bayes Nets using the Netica/IKE software by specifying an appropriate conditional probability table (CPT). This CPT is calculated using the same form as (1), where the data stream metrics for the true (T) and false (F) states are replaced by 1 and 0, respectively. Then using this CPT, the failure mode metric calculated by Netica/IKE equals (1). This result has two nice features. First, the rollup Bayes nets is doing can be easily explained. Second, because Bayes Nets can implement this rollup using Netica/IKE, then data marshalling (allocating next year's budget) can be studied. A proof that the claim 'failure mode metric calculated by Netica/IKE equals (1)' for n = 2 and n = 3 follows as well as the sketch of a proof by induction for general n.

  5. Transitive closure and metric inequality of weighted graphs: detecting protein interaction modules using cliques

    E-Print Network [OSTI]

    Ding, Chris; He, Xiaofeng; Xiong, Hui; Peng, Hanchuan; Holbrook, Stephen R.

    2006-01-01T23:59:59.000Z

    Closure and Metric Inequality of Weighted Graphs – Detectingleads to a transitivity inequality which is equivalentto ultra-metric inequality. This can be used to de?ne

  6. Schwarzschild-like metric and a quantum vacuum

    E-Print Network [OSTI]

    P. R. Silva

    2013-02-01T23:59:59.000Z

    A quantum vacuum, represented by a viscous fluid, is added to the Einstein vacuum, surrounding a spherical distribution of mass. This gives as a solution, in spherical coordinates, a Schwarzschild-like metric. The plot of g00 and g11 components of the metric, as a function of the radial coordinate, display the same qualitative behavior as that of the Schwarzschild metric. However, the temperature of the event horizon is equal to the Hawking temperature multiplied by a factor of two, while the entropy is equal to half of the Bekenstein one.

  7. Characteristics of a sense of belonging and its relationship to academic achievement of students in selected middle school in Region IV and VI Education Service Centers, Texas

    E-Print Network [OSTI]

    Capps, Matthew Alan

    2005-02-17T23:59:59.000Z

    The purpose of this research is to investigate the feeling of belonging that students may or may not have and the relationship of student sense of belonging to the overall academic achievement of a school. Students were surveyed on their sense...

  8. Analysis of Solar Cell Quality Using Voltage Metrics: Preprint

    SciTech Connect (OSTI)

    Toberer, E. S.; Tamboli, A. C.; Steiner, M.; Kurtz, S.

    2012-06-01T23:59:59.000Z

    The highest efficiency solar cells provide both excellent voltage and current. Of these, the open-circuit voltage (Voc) is more frequently viewed as an indicator of the material quality. However, since the Voc also depends on the band gap of the material, the difference between the band gap and the Voc is a better metric for comparing material quality of unlike materials. To take this one step further, since Voc also depends on the shape of the absorption edge, we propose to use the ultimate metric: the difference between the measured Voc and the Voc calculated from the external quantum efficiency using a detailed balance approach. This metric is less sensitive to changes in cell design and definition of band gap. The paper defines how to implement this metric and demonstrates how it can be useful in tracking improvements in Voc, especially as Voc approaches its theoretical maximum.

  9. Self-benchmarking Guide for Data Centers: Metrics, Benchmarks, Actions

    E-Print Network [OSTI]

    Mathew, Paul

    2010-01-01T23:59:59.000Z

    good practice” for data center infrastructure efficiency metric. Data Center Benchmarking Guidegood practice benchmark and 0.6 kW/ton as a better practice benchmark. Data Center Benchmarking Guide

  10. A Graph Analytic Metric for Mitigating Advanced Persistent Threat

    SciTech Connect (OSTI)

    Johnson, John R.; Hogan, Emilie A.

    2013-06-04T23:59:59.000Z

    This paper introduces a novel graph analytic metric that can be used to measure the potential vulnerability of a cyber network to specific types of attacks that use lateral movement and privilege escalation such as the well known Pass The Hash, (PTH). The metric is computed from an oriented subgraph of the underlying cyber network induced by selecting only those edges for which a given property holds between the two vertices of the edge. The metric with respect to a select node on the subgraph is defined as the likelihood that the select node is reachable from another arbitrary node in the graph. This metric can be calculated dynamically from the authorization and auditing layers during the network security authorization phase and will potentially enable predictive deterrence against attacks such as PTH.

  11. Momentum space metric, non-local operator, and topological insulators

    E-Print Network [OSTI]

    Shunji Matsuura; Shinsei Ryu

    2010-07-13T23:59:59.000Z

    Momentum space of a gapped quantum system is a metric space: it admits a notion of distance reflecting properties of its quantum ground state. By using this quantum metric, we investigate geometric properties of momentum space. In particular, we introduce a non-local operator which represents distance square in real space and show that this corresponds to the Laplacian in curved momentum space, and also derive its path integral representation in momentum space. The quantum metric itself measures the second cumulant of the position operator in real space, much like the Berry gauge potential measures the first cumulant or the electric polarization in real space. By using the non-local operator and the metric, we study some aspects of topological phases such as topological invariants, the cumulants and topological phase transitions. The effect of interactions to the momentum space geometry is also discussed.

  12. Analyses Of Two End-User Software Vulnerability Exposure Metrics

    SciTech Connect (OSTI)

    Jason L. Wright; Miles McQueen; Lawrence Wellman

    2012-08-01T23:59:59.000Z

    The risk due to software vulnerabilities will not be completely resolved in the near future. Instead, putting reliable vulnerability measures into the hands of end-users so that informed decisions can be made regarding the relative security exposure incurred by choosing one software package over another is of importance. To that end, we propose two new security metrics, average active vulnerabilities (AAV) and vulnerability free days (VFD). These metrics capture both the speed with which new vulnerabilities are reported to vendors and the rate at which software vendors fix them. We then examine how the metrics are computed using currently available datasets and demonstrate their estimation in a simulation experiment using four different browsers as a case study. Finally, we discuss how the metrics may be used by the various stakeholders of software and to software usage decisions.

  13. Directional Hölder metric subregularity and application to tangent ...

    E-Print Network [OSTI]

    2014-11-04T23:59:59.000Z

    When ? = 1, we write and say simply SCr1F(¯x, ¯y)(u) := SCrF(¯x, ¯y)(u) : the directional strict limit set critical for metric subregularity of F at (¯x, ¯y) in direction u.

  14. algorithm performance metrics: Topics by E-print Network

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

    Summary: New set of metrics for the computational performance of IS-ENES Earth System Models TRCMGC1473 U performance of Earth System Models is developed and used for an...

  15. An SMT-Selection Metric to Improve Multithreaded Applications' Performance

    E-Print Network [OSTI]

    Fedorova, Alexandra

    An SMT-Selection Metric to Improve Multithreaded Applications' Performance Justin R. Funston Simon Fraser University* Abstract--Simultaneous multithreading (SMT) increases CPU utilization- cation scalability or when there is significant contention for CPU resources. This paper describes an SMT

  16. Measures of agreement between computation and experiment:validation metrics.

    SciTech Connect (OSTI)

    Barone, Matthew Franklin; Oberkampf, William Louis

    2005-08-01T23:59:59.000Z

    With the increasing role of computational modeling in engineering design, performance estimation, and safety assessment, improved methods are needed for comparing computational results and experimental measurements. Traditional methods of graphically comparing computational and experimental results, though valuable, are essentially qualitative. Computable measures are needed that can quantitatively compare computational and experimental results over a range of input, or control, variables and sharpen assessment of computational accuracy. This type of measure has been recently referred to as a validation metric. We discuss various features that we believe should be incorporated in a validation metric and also features that should be excluded. We develop a new validation metric that is based on the statistical concept of confidence intervals. Using this fundamental concept, we construct two specific metrics: one that requires interpolation of experimental data and one that requires regression (curve fitting) of experimental data. We apply the metrics to three example problems: thermal decomposition of a polyurethane foam, a turbulent buoyant plume of helium, and compressibility effects on the growth rate of a turbulent free-shear layer. We discuss how the present metrics are easily interpretable for assessing computational model accuracy, as well as the impact of experimental measurement uncertainty on the accuracy assessment.

  17. EINSTEIN METRICS ON RATIONAL HOMOLOGY SPHERES CHARLES P. BOYER AND KRZYSZTOF GALICKI

    E-Print Network [OSTI]

    EINSTEIN METRICS ON RATIONAL HOMOLOGY SPHERES CHARLES P. BOYER AND KRZYSZTOF GALICKI 1. Introduction In this paper we prove the existence of Einstein metrics, actually Sasakian- Einstein metrics is known about the existence of Einstein metrics on rational homology spheres, and the known ones

  18. Unit Conversion Factors Quantity Equivalent Values

    E-Print Network [OSTI]

    Ashurst, W. Robert

    Unit Conversion Factors Quantity Equivalent Values Mass 1 kg = 1000 g = 0.001 metric ton = 2.921 inHg at 0 C Energy 1 J = 1 N·m = 107 ergs = 107 dyne·cm = 2.778×10-7 kW·h 1 J = 0.23901 cal = 0·R 10.73 psia·ft3 lbmol·R 62.36 liter·torr mol·K 0.7302 ft3·atm lbmol·R Temperature Conversions: T

  19. " Million Housing Units, Final...

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

    Televisions in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total U.S.1...

  20. " Million Housing Units, Final...

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

    Space Heating in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total...

  1. " Million Housing Units, Final...

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

    Computers and Other Electronics in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings...

  2. " Million Housing Units, Final...

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

    Water Heating in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total...

  3. Abbreviations and Units of Measure 1 carat (metric) (diamond) = 200 milligrams

    E-Print Network [OSTI]

    Torgersen, Christian

    /Reserve Classification for Minerals1 INTRODUCTION reserve or ready if needed," has been adapted for Through the years in the minerals field have used various to anticipated future value. terms to describe and classify mineral use and acceptance, such form and amount that economic extraction of a although they are not always

  4. Abbreviations and Units of Measure 1 carat (metric) (diamond) = 200 milligrams

    E-Print Network [OSTI]

    Torgersen, Christian

    be based on the probability of discovering new deposits, on developing economic extraction processes A Resource/Reserve Classification for Minerals5 INTRODUCTION Through the years, geologists, mining engineers, and others operating in the minerals field have used various terms to describe and classify mineral resources

  5. Abbreviations and Units of Measure 1 carat (metric) (diamond) = 200 milligrams

    E-Print Network [OSTI]

    Torgersen, Christian

    , on developing economic extraction processes for currently unworkable deposits, and on knowing which resources Survey Circular 831, 1980. APPENDIX C A Resource/Reserve Classification for Minerals1 INTRODUCTION Through the years, geologists, mining engineers, and others operating in the minerals field have used

  6. Metrics Matter: Examining Chronic and Transient Poverty in the United States Using the Supplemental Poverty Measure

    E-Print Network [OSTI]

    Kimberlin, Sara

    2013-01-01T23:59:59.000Z

    Ravallion, M. (1995). Poverty and policy. In J. Behrman &economic well-being: Poverty, 2004–2006. Current PopulationSlipping into and out of poverty: The dynamics of spells.

  7. Abbreviations and Units of Measure 1 carat (metric) (diamond) = 200 milligrams

    E-Print Network [OSTI]

    Torgersen, Christian

    ) are developed, or currently exploited deposits are more thoroughly explored and/or new technology or economic is necessarily limited by many considerations, including cost of drilling, taxes, price of the mineral commodity

  8. Termination unit

    DOE Patents [OSTI]

    Traeholt, Chresten [Frederiksberg, DK; Willen, Dag [Klagshamn, SE; Roden, Mark [Newnan, GA; Tolbert, Jerry C [Carrollton, GA; Lindsay, David [Carrollton, GA; Fisher, Paul W [Heiskell, TN; Nielsen, Carsten Thidemann [Jaegerspris, DK

    2014-01-07T23:59:59.000Z

    This invention relates to a termination unit comprising an end-section of a cable. The end section of the cable defines a central longitudinal axis and comprising end-parts of N electrical phases, an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid. The end-parts of the N electrical phases and the end-part of the neutral conductor each comprising at least one electrical conductor and being arranged in the cable concentrically around a core former with a phase 1 located relatively innermost, and phase N relatively outermost in the cable, phase N being surrounded by the neutral conductor, electrical insulation being arrange between neighboring electrical phases and between phase N and the neutral conductor, and wherein the end-parts of the neutral conductor and the electrical phases each comprise a contacting surface electrically connected to at least one branch current lead to provide an electrical connection: The contacting surfaces each having a longitudinal extension, and being located sequentially along the longitudinal extension of the end-section of the cable. The branch current leads being individually insulated from said thermally insulation envelope by individual electrical insulators.

  9. Wave function of the Universe, Preferred reference frame effects and metric signature transition

    E-Print Network [OSTI]

    Hossein Ghaffarnejad

    2015-04-14T23:59:59.000Z

    Gravitational model of non-minimally coupled Brans Dicke (BD) scalar field $\\phi$ with dynamical unit time-like four vector field is used to study flat Robertson Walker (RW) cosmology in the presence of variable cosmological parameter $V(\\phi)=\\Lambda\\phi.$ Aim of the paper is to seek cosmological models which exhibit metric signature transition. The problem is studied in both classical and quantum cosmological approach with large values of BD parameter $\\omega>>1$. Scale factor of RW metric is obtained as $R(t)=6\\sqrt{\\frac{3}{\\Lambda}}\\cosh\\big(\\frac{t}{4}\\sqrt{\\frac{\\Lambda}{3}}\\big)$ which describes nonsingular inflationary universe in Lorentzian signature sector. Euclidean signature sector of our solution describes a re-collapsing universe and is obtained from analytic continuation of the Lorentzian sector by exchanging $t\\to it$ as $R(t)=6\\sqrt{\\frac{3}{\\Lambda}}\\cos\\big(\\frac{t}{4}\\sqrt{\\frac{\\Lambda}{3}}\\big).$ Dynamical vector field together with the BD scalar field are treated as fluid with time dependent barotropic index. They have regular (dark) matter dominance in the Euclidean (Lorentzian) sector. We solved Wheeler De Witt (WD) quantum wave equation of the cosmological system. Assuming a discrete non-zero ADM mass $M_j=4\\sqrt{2}(2j+1)\\sqrt{\\frac{\\Lambda}{3}}$ with $j=0,1,2,\\cdots$, we obtained solutions of the WD equation as simple harmonic quantum Oscillator eigen functionals described by Hermite polynomials. Absolute values of these eigen functionals have nonzero values on the hypersurface $R=6\\sqrt{\\frac{3}{\\Lambda}}$ in which metric field has signature degeneracy. Our eigen functionals describe nonzero probability of the space time with Lorentzian (Euclidean) signature for $R>6\\sqrt{\\frac{3}{\\Lambda}}$ ($R<6\\sqrt{\\frac{3}{\\Lambda}}$). Maximal probability corresponds to the ground state $j=0.$

  10. An Aquatic Acoustic Metrics Interface Utility for Underwater Sound Monitoring and Analysis

    SciTech Connect (OSTI)

    Ren, Huiying; Halvorsen, Michele B.; Deng, Zhiqun; Carlson, Thomas J.

    2012-05-31T23:59:59.000Z

    Fishes and other marine mammals suffer a range of potential effects from intense sound sources generated by anthropogenic underwater processes such as pile driving, shipping, sonars, and underwater blasting. Several underwater sound recording devices (USR) were built to monitor the acoustic sound pressure waves generated by those anthropogenic underwater activities, so the relevant processing software becomes indispensable for analyzing the audio files recorded by these USRs. However, existing software packages did not meet performance and flexibility requirements. In this paper, we provide a detailed description of a new software package, named Aquatic Acoustic Metrics Interface (AAMI), which is a Graphical User Interface (GUI) designed for underwater sound monitoring and analysis. In addition to the general functions, such as loading and editing audio files recorded by USRs, the software can compute a series of acoustic metrics in physical units, monitor the sound's influence on fish hearing according to audiograms from different species of fishes and marine mammals, and batch process the sound files. The detailed applications of the software AAMI will be discussed along with several test case scenarios to illustrate its functionality.

  11. Metrics for Evaluating the Accuracy of Solar Power Forecasting: Preprint

    SciTech Connect (OSTI)

    Zhang, J.; Hodge, B. M.; Florita, A.; Lu, S.; Hamann, H. F.; Banunarayanan, V.

    2013-10-01T23:59:59.000Z

    Forecasting solar energy generation is a challenging task due to the variety of solar power systems and weather regimes encountered. Forecast inaccuracies can result in substantial economic losses and power system reliability issues. This paper presents a suite of generally applicable and value-based metrics for solar forecasting for a comprehensive set of scenarios (i.e., different time horizons, geographic locations, applications, etc.). In addition, a comprehensive framework is developed to analyze the sensitivity of the proposed metrics to three types of solar forecasting improvements using a design of experiments methodology, in conjunction with response surface and sensitivity analysis methods. The results show that the developed metrics can efficiently evaluate the quality of solar forecasts, and assess the economic and reliability impact of improved solar forecasting.

  12. Evaluation of the Design Metric to Reduce the Number of Defects in Software Development

    E-Print Network [OSTI]

    Qureshi, M Rizwan Jameel; 10.5815/ijitcs.2012.04.02

    2012-01-01T23:59:59.000Z

    Software design is one of the most important and key activities in the system development life cycle (SDLC) phase that ensures the quality of software. Different key areas of design are very vital to be taken into consideration while designing software. Software design describes how the software system is decomposed and managed in smaller components. Object-oriented (OO) paradigm has facilitated software industry with more reliable and manageable software and its design. The quality of the software design can be measured through different metrics such as Chidamber and Kemerer (CK) design metrics, Mood Metrics & Lorenz and Kidd metrics. CK metrics is one of the oldest and most reliable metrics among all metrics available to software industry to evaluate OO design. This paper presents an evaluation of CK metrics to propose an improved CK design metrics values to reduce the defects during software design phase in software. This paper will also describe that whether a significant effect of any CK design metri...

  13. Low-cost inertial measurement unit.

    SciTech Connect (OSTI)

    Deyle, Travis Jay

    2005-03-01T23:59:59.000Z

    Sandia National Laboratories performs many expensive tests using inertial measurement units (IMUs)--systems that use accelerometers, gyroscopes, and other sensors to measure flight dynamics in three dimensions. For the purpose of this report, the metrics used to evaluate an IMU are cost, size, performance, resolution, upgradeability and testing. The cost of a precision IMU is very high and can cost hundreds of thousands of dollars. Thus the goals and results of this project are as follows: (1) Examine the data flow in an IMU and determine a generic IMU design. (2) Discuss a high cost IMU implementation and its theoretically achievable results. (3) Discuss design modifications that would save money for suited applications. (4) Design and implement a low cost IMU and discuss its theoretically achievable results. (5) Test the low cost IMU and compare theoretical results with empirical results. (6) Construct a more streamlined printed circuit board design reducing noise, increasing capabilities, and constructing a self-contained unit. Using these results, we can compare a high cost IMU versus a low cost IMU using the metrics from above. Further, we can examine and suggest situations where a low cost IMU could be used instead of a high cost IMU for saving cost, size, or both.

  14. Primer Control System Cyber Security Framework and Technical Metrics

    SciTech Connect (OSTI)

    Wayne F. Boyer; Miles A. McQueen

    2008-05-01T23:59:59.000Z

    The Department of Homeland Security National Cyber Security Division supported development of a control system cyber security framework and a set of technical metrics to aid owner-operators in tracking control systems security. The framework defines seven relevant cyber security dimensions and provides the foundation for thinking about control system security. Based on the developed security framework, a set of ten technical metrics are recommended that allow control systems owner-operators to track improvements or degradations in their individual control systems security posture.

  15. " Million Housing Units, Final...

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

    2 Fuels Used and End Uses in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings...

  16. " Million Housing Units, Final...

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

    2 Space Heating in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings With"...

  17. " Million Housing Units, Final...

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

    2 Computers and Other Electronics in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in...

  18. " Million Housing Units, Final...

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

    2 Water Heating in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings With"...

  19. Computing K3 and CY n-fold Metrics

    E-Print Network [OSTI]

    Gordon Chalmers

    2005-07-27T23:59:59.000Z

    The derivative expnsion in the context of IIB string scattering compactified on non-trivial K3 and other Calabi-Yau manifolds is formulated. The scattering data in terms of automorphic functions can be inverted to find the these metrics. The solutions are parameterized by the moduli information, and the metrics may be found to any desired accuracy in derivatives. Metric information to low orders in derivatives allows for a counting of curves inside the manifold; in addition, the coefficients of these exponential terms via D-brane wrappings are polynomials that may admit an invariant interpretation in cohomology. An interesting case pertaining to M-theory compactifications is the collection of seven-dimensional $G_2$ manifolds; they can also be obtained when the moduli space degenerates into cases, such as a toroidal one or other limit in which modular functions on the space are known. Note: this work was written two years ago; the recipe without the explicit form of the scattering and metrics is given.

  20. Methods, Metrics and Motivation for a Green Computer Science Program

    E-Print Network [OSTI]

    Way, Thomas

    and, more recently, economically sensible [13]. "Going Green" implies reducing your energy useMethods, Metrics and Motivation for a Green Computer Science Program Mujtaba Talebi and Thomas Way are uniquely positioned to promote greater awareness of Green Computing, using the academic setting

  1. Code design based on metric-spectrum and applications

    E-Print Network [OSTI]

    Papadimitriou, Panayiotis D.

    2005-02-17T23:59:59.000Z

    We introduced nested search methods to design (n, k) block codes for arbitrary channels by optimizing an appropriate metric spectrum in each iteration. For a given k, the methods start with a good high rate code, say k/(k + 1), and successively...

  2. Einstein static Universe in hybrid metric-Palatini gravity

    E-Print Network [OSTI]

    Christian G. Boehmer; Francisco S. N. Lobo; Nicola Tamanini

    2015-02-18T23:59:59.000Z

    Hybrid metric-Palatini gravity is a recent and novel approach to modified theories of gravity, which consists of adding to the metric Einstein-Hilbert Lagrangian an f(R) term constructed a la Palatini. It was shown that the theory passes local tests even if the scalar field is very light, and thus implies the existence of a long-range scalar field, which is able to modify the dynamics in galactic and cosmological scales, but leaves the Solar System unaffected. In this work, motivated by the possibility that the Universe may have started out in an asymptotically Einstein static state in the inflationary universe context, we analyse the stability of the Einstein static Universe by considering linear homogeneous perturbations in the respective dynamically equivalent scalar-tensor representation of hybrid metric-Palatini gravity. Considering linear homogeneous perturbations, the stability regions of the Einstein static universe are parametrized by the first and second derivatives of the scalar potential, and it is explicitly shown that a large class of stable solutions exists in the respective parameter space, in the context of hybrid metric-Palatini gravity.

  3. Towards Efficient Supercomputing: A Quest for the Right Metric.

    SciTech Connect (OSTI)

    Hsu, C.-H. (Chung-Hsing); Feng, W. C. (Wu-Chun); Archuleta, J. S. (Jeremy S.)

    2005-01-01T23:59:59.000Z

    Over the past decade, we have been building less and less efficient supercomputers, resulting in the construction of substantially larger machine rooms and even new buildings. In addition, because of the thermal power envelope of these supercomputers, a small fortune must be spent to cool them. These infrastructure costs coupled with the additional costs of administering and maintaining such (unreliable) supercomputers dramatically increases their total cost of ownership. As a result, there has been substantial interest in recent years to produce more reliable and more efficient supercomputers that are easy to maintain and use. But how does one quantify efficient supercomputing? That is, what metric should be used to evaluate how efficiently a supercomputer delivers answers? We argue that existing efficiency metrics such as the performance-power ratio are insufficient and motivate the need for a new type of efficiency metric, one that incorporates notions of reliability, availability, productivity, and total cost of ownership (TCO), for instance. In doing so, however, this paper raises more questions than it answers with respect to efficiency. And in the end, we still return to the performance-power ratio as an efficiency metric with respect to power and use it to evaluate a menagerie of processor platforms in order to provide a set of reference data points for the high-performance computing community.

  4. Instruction-Window Power Reduction Using Data Dependence Metric

    E-Print Network [OSTI]

    Lee, Hsien-Hsin "Sean"

    power savings, and with an average performance loss of a very modest 1.9%. I. INTRODUCTION NewInstruction-Window Power Reduction Using Data Dependence Metric Ziad Youssfi and Michael Shanblatt Department of Electrical and Computer Engineering Michigan State University East Lansing, MI 48824 ziad

  5. Thermodynamics and the naked singularity in the Gamma-metric

    E-Print Network [OSTI]

    K. Lochan; D. Malafarina; T. P. Singh

    2010-09-23T23:59:59.000Z

    We investigate a possible way of establishing a parallel between the third law of black hole mechanics, and the strong version of the third law of thermodynamics. We calculate the surface gravity and area for a naked singular null surface in the Gamma-metric and explain in what sense this behaviour violates thermodynamics.

  6. A Comprehensive and Comparative Metric for Information Security

    E-Print Network [OSTI]

    Breu, Ruth

    A Comprehensive and Comparative Metric for Information Security Steffen Weiß1 , Oliver Weissmann2 security GmbH, Germany Abstract Measurement of information security is important for organizations , Falko Dressler1* 1 Dept. of Computer Science 7, University of Erlangen, Germany 2 atsec information

  7. Metrics and Benchmarks for Energy Efficiency in Laboratories

    SciTech Connect (OSTI)

    Rumsey Engineers; Mathew, Paul; Mathew, Paul; Greenberg, Steve; Sartor, Dale; Rumsey, Peter; Weale, John

    2008-04-10T23:59:59.000Z

    A wide spectrum of laboratory owners, ranging from universities to federal agencies, have explicit goals for energy efficiency in their facilities. For example, the Energy Policy Act of 2005 (EPACT 2005) requires all new federal buildings to exceed ASHRAE 90.1-2004 [1] by at least 30%. A new laboratory is much more likely to meet energy efficiency goals if quantitative metrics and targets are specified in programming documents and tracked during the course of the delivery process. If not, any additional capital costs or design time associated with attaining higher efficiencies can be difficult to justify. This article describes key energy efficiency metrics and benchmarks for laboratories, which have been developed and applied to several laboratory buildings--both for design and operation. In addition to traditional whole building energy use metrics (e.g. BTU/ft{sup 2}.yr, kWh/m{sup 2}.yr), the article describes HVAC system metrics (e.g. ventilation W/cfm, W/L.s{sup -1}), which can be used to identify the presence or absence of energy features and opportunities during design and operation.

  8. Why Metrics Matter: Evaluating Policy Choices for Reactive Nitrogen

    E-Print Network [OSTI]

    Tufts University

    for reducing Nr releases into the air are also lower. These findings have major implications for the use and support improved coordination between the Clean Air and Clean Water Acts while restoring the Chesapeake for the interest in metrics related to pollutants is the role they play now and in future regulation. Current

  9. Metrics to Characterize Airport Operational Performance Using Surface Surveillance Data

    E-Print Network [OSTI]

    Gummadi, Ramakrishna

    Time FAA Federal Aviation Administration GPS Global Positioning System Departure Spacing Efficiency Route Traffic Control Center ASDE-X Airport Surface Detection Equipment, Model-X ASPM Aviation System from a combination of the Aviation System Performance Metrics (ASPM) [9] and the Airline Service

  10. The evolution of false vacuum bubbles in radiating metrics

    SciTech Connect (OSTI)

    Larsen, K.M.

    1990-01-01T23:59:59.000Z

    The equations of motion for false vacuum bubbles in Vaidya-Mallett metrics are derived and numerically solved. It is demonstrated that the evolution of the bubble differs from the standard Schwarzschild-de Sitter results. The luminosity as measured by an external observer is found to deviate from the normal Hawking luminosity, thus producing a signature for the existence of the child universe.

  11. MODELS AND METRICS FOR ENERGY-EFFICIENT COMPUTER SYSTEMS

    E-Print Network [OSTI]

    Kozyrakis, Christos

    MODELS AND METRICS FOR ENERGY-EFFICIENT COMPUTER SYSTEMS A DISSERTATION SUBMITTED TO THE DEPARTMENT promising energy-efficient technolo- gies, and models to understand the effects of resource utilization decisions on power con- sumption. To facilitate energy-efficiency improvements, this dissertation presents

  12. type Riemannian metric on the space of planar curves

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of Computational Anatomy (MFCA'06) inria-00635881,version1-26Oct2011 Author manuscript, published in "1st MICCAI (MFCA'06) 41 inria-00635881,version1-26Oct2011 #12;2.2 Closure of open curves in H1 metric A generic z

  13. Deep Energy Retrofit Performance Metric Comparison: Eight California Case Studies

    SciTech Connect (OSTI)

    Walker, Iain; Fisher, Jeremy; Less, Brennan

    2014-06-01T23:59:59.000Z

    In this paper we will present the results of monitored annual energy use data from eight residential Deep Energy Retrofit (DER) case studies using a variety of performance metrics. For each home, the details of the retrofits were analyzed, diagnostic tests to characterize the home were performed and the homes were monitored for total and individual end-use energy consumption for approximately one year. Annual performance in site and source energy, as well as carbon dioxide equivalent (CO{sub 2}e) emissions were determined on a per house, per person and per square foot basis to examine the sensitivity to these different metrics. All eight DERs showed consistent success in achieving substantial site energy and CO{sub 2}e reductions, but some projects achieved very little, if any source energy reduction. This problem emerged in those homes that switched from natural gas to electricity for heating and hot water, resulting in energy consumption dominated by electricity use. This demonstrates the crucial importance of selecting an appropriate metric to be used in guiding retrofit decisions. Also, due to the dynamic nature of DERs, with changes in occupancy, size, layout, and comfort, several performance metrics might be necessary to understand a project’s success.

  14. New set of metrics for the computational performance

    E-Print Network [OSTI]

    New set of metrics for the computational performance of IS-ENES Earth System Models TR/CMGC/14/73 U performance of Earth System Models is developed and used for an initial performance analysis of the EC models.................................................................................................................................5 2.1 List of Participating Earth System Models

  15. Linear harmonic oscillator in spaces with degenerate metrics

    E-Print Network [OSTI]

    N. A. Gromov

    2006-03-02T23:59:59.000Z

    With the help of contraction method we study the harmonic oscillator in spaces with degenerate metrics, namely, on Galilei plane and in the flat 3D Cayley-Klein spaces $R_3(j_2,j_3).$ It is shown that the inner degrees of freedom are appeared which physical dimensions are different from the dimension of the space.

  16. Metrics and Benchmarks for Energy Efficiency in Laboratories

    SciTech Connect (OSTI)

    Mathew, Paul

    2007-10-26T23:59:59.000Z

    A wide spectrum of laboratory owners, ranging from universities to federal agencies, have explicit goals for energy efficiency in their facilities. For example, the Energy Policy Act of 2005 (EPACT 2005) requires all new federal buildings to exceed ASHRAE 90.1-2004 1 by at least 30 percent. The University of California Regents Policy requires all new construction to exceed California Title 24 2 by at least 20 percent. A new laboratory is much more likely to meet energy efficiency goals if quantitative metrics and targets are explicitly specified in programming documents and tracked during the course of the delivery process. If efficiency targets are not explicitly and properly defined, any additional capital costs or design time associated with attaining higher efficiencies can be difficult to justify. The purpose of this guide is to provide guidance on how to specify and compute energy efficiency metrics and benchmarks for laboratories, at the whole building as well as the system level. The information in this guide can be used to incorporate quantitative metrics and targets into the programming of new laboratory facilities. Many of these metrics can also be applied to evaluate existing facilities. For information on strategies and technologies to achieve energy efficiency, the reader is referred to Labs21 resources, including technology best practice guides, case studies, and the design guide (available at www.labs21century.gov/toolkit).

  17. (Data in metric tons of silver content unless otherwise noted)

    E-Print Network [OSTI]

    146 SILVER (Data in metric tons 1 of silver content unless otherwise noted) Domestic Production.S. refiners of commercial-grade silver, with an estimated total output of 6,500 tons from domestic and foreign to minimize odor, electroplating, hardening bearings, inks, mirrors, solar cells, water purification, and wood

  18. (Data in metric tons of silver content unless otherwise noted)

    E-Print Network [OSTI]

    146 SILVER (Data in metric tons 1 of silver content unless otherwise noted) Domestic Production, with an estimated total output of 2,500 tons from domestic and foreign ores and concentrates, and from old and new, mirrors, solar cells, water purification, and wood treatment. Silver was used for miniature antennas

  19. Evaluation Metrics Applied to Accident Tolerant Fuels

    SciTech Connect (OSTI)

    Shannon M. Bragg-Sitton; Jon Carmack; Frank Goldner

    2014-10-01T23:59:59.000Z

    The safe, reliable, and economic operation of the nation’s nuclear power reactor fleet has always been a top priority for the United States’ nuclear industry. Continual improvement of technology, including advanced materials and nuclear fuels, remains central to the industry’s success. Decades of research combined with continual operation have produced steady advancements in technology and have yielded an extensive base of data, experience, and knowledge on light water reactor (LWR) fuel performance under both normal and accident conditions. One of the current missions of the U.S. Department of Energy’s (DOE) Office of Nuclear Energy (NE) is to develop nuclear fuels and claddings with enhanced accident tolerance for use in the current fleet of commercial LWRs or in reactor concepts with design certifications (GEN-III+). Accident tolerance became a focus within advanced LWR research upon direction from Congress following the 2011 Great East Japan Earthquake, resulting tsunami, and subsequent damage to the Fukushima Daiichi nuclear power plant complex. The overall goal of ATF development is to identify alternative fuel system technologies to further enhance the safety, competitiveness and economics of commercial nuclear power. Enhanced accident tolerant fuels would endure loss of active cooling in the reactor core for a considerably longer period of time than the current fuel system while maintaining or improving performance during normal operations. The U.S. DOE is supporting multiple teams to investigate a number of technologies that may improve fuel system response and behavior in accident conditions, with team leadership provided by DOE national laboratories, universities, and the nuclear industry. Concepts under consideration offer both evolutionary and revolutionary changes to the current nuclear fuel system. Mature concepts will be tested in the Advanced Test Reactor at Idaho National Laboratory beginning in Summer 2014 with additional concepts being readied for insertion in fiscal year 2015. This paper provides a brief summary of the proposed evaluation process that would be used to evaluate and prioritize the candidate accident tolerant fuel concepts currently under development.

  20. (Data in thousand metric tons of zinc content, unless noted) Domestic Production and Use: The value of zinc mined in 1995 was about $700 million. Essentially all came from

    E-Print Network [OSTI]

    188 ZINC (Data in thousand metric tons of zinc content, unless noted) Domestic Production and Use were used principally by the agricultural, chemical, paint, and rubber industries. Major coproducts--United States: 1991 1992 1993 1994 1995e Production: Mine, recoverable 518 523 488 570 600 Primary slab zinc 253

  1. Co-Designing Sustainable Communities: The Identification and Incorporation of Social Performance Metrics in Native American Sustainable Housing and Renewable Energy System Design

    E-Print Network [OSTI]

    Shelby, Ryan

    2013-01-01T23:59:59.000Z

    3) sustainability indicators or performance metrics forof situated performance metrics or indicators that aren’t3) sustainability indicators or performance metrics for

  2. Choosing good distance metrics and local planners for probabilistic roadmap motion planning methods

    E-Print Network [OSTI]

    Bayazit, Osman Burchan

    1998-01-01T23:59:59.000Z

    This thesis presents a comparative evaluation of different distance metrics and local planners within the context of probabilistic roadmap methods for motion planning. Both C-space and Workspace distance metrics and local planners are considered...

  3. A Structure-Based Distance Metric for High-Dimensional Space...

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

    A Structure-Based Distance Metric for High-Dimensional Space Exploration with Multi-Dimensional Scaling. A Structure-Based Distance Metric for High-Dimensional Space Exploration...

  4. Design Principles and Performance Metrics for Magnetic Refrigerators Operating Near Room Temperature

    E-Print Network [OSTI]

    Victoria, University of

    Design Principles and Performance Metrics for Magnetic Refrigerators Operating Near Room Principles and Performance Metrics for Magnetic Refrigerators Operating Near Room Temperature by Daniel Sean decade, active magnetic regenerative (AMR) refrigeration technology has progressed towards commercial

  5. RELATION OF THE WAVE{PROPAGATION METRIC TENSOR TO THE CURVATURES

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    RELATION OF THE WAVE{PROPAGATION METRIC TENSOR TO THE CURVATURES OF THE SLOWNESS AND RAY The contravariant components of the wave{propagation metric tensor equal half the second{order partial derivatives. The relations of the wave{ propagation metric tensor to the curvature matrix and Gaussian curvature

  6. EINSTEIN METRICS ON SPHERES CHARLES P. BOYER, KRZYSZTOF GALICKI AND J ANOS KOLLAR

    E-Print Network [OSTI]

    EINSTEIN METRICS ON SPHERES CHARLES P. BOYER, KRZYSZTOF GALICKI AND J ´ANOS KOLL´AR 1. Introduction and Einstein, that is the Ricci curvature is a constant multiple of the metric. The spheres S4m+3 , m > 1 are known to have another Sp(m + 1)-homogeneous Einstein metric discovered by Jensen [Jen73]. In addi- tion

  7. EINSTEIN METRICS ON SPHERES CHARLES P. BOYER, KRZYSZTOF GALICKI AND J

    E-Print Network [OSTI]

    EINSTEIN METRICS ON SPHERES CHARLES P. BOYER, KRZYSZTOF GALICKI AND J â?? ANOS KOLL â?? AR 1 are homogeneous and Einstein, that is the Ricci curvature is a constant multiple of the metric. The spheres S 4m+3 , m > 1 are known to have another Sp(m + 1)­homogeneous Einstein metric discovered by Jensen [Jen73

  8. Data Mining in Metric Space: An Empirical Analysis of Supervised Learning Performance Criteria

    E-Print Network [OSTI]

    Caruana, Rich

    Error, Cross Entropy, and Prob- ability Calibration. Multidimensional scaling (MDS) shows- terpreted as probabilities: squared error, cross entropy, and calibration, lay in one part of metric space metrics such as ROC area and average precision. We introduce a new metric, SAR, that combines squared

  9. Symmetry Analysis for Tetrahedrane Tetrahedrane, C4H4, belongs to the Td point group. Use group theory to predict the number of IR and Raman

    E-Print Network [OSTI]

    Rioux, Frank

    Symmetry Analysis for Tetrahedrane Tetrahedrane, C4H4, belongs to the Td point group. Use group have three IR active modes (3T2) and seven Raman active modes (2A1 + 2E + 3T2). Two of the IR modes

  10. FSUCML Publica ons.enl Page 1 Abbott, R. T. 1952. Two new opisthobranch mollusks from the Gulf of Mexico belonging to the genera

    E-Print Network [OSTI]

    McQuade, D. Tyler

    FSUCML Publica ons.enl Page 1 Abbott, R. T. 1952. Two new opisthobranch mollusks from the Gulf of Mexico belonging to the genera Pleurobranchaea and Polycera (including additional notes on Polycera hummi. The marine decapod crustacea of the northeastern Gulf of Mexico. M. Sc. Florida State University, Tallahassee

  11. Self-benchmarking Guide for Data Centers: Metrics, Benchmarks, Actions

    E-Print Network [OSTI]

    Mathew, Paul

    2010-01-01T23:59:59.000Z

    they require pump and tower energy to provide cooling. Theypumps, and cooling towers) in terms of energy input per unit

  12. Quantum corrections to the Schwarzschild metric and reparametrization transformations

    E-Print Network [OSTI]

    G. G. Kirilin

    2006-01-05T23:59:59.000Z

    Quantum corrections to the Schwarzschild metric generated by loop diagrams have been considered by Bjerrum-Bohr, Donoghue, and Holstein (BHD) [Phys. Rev. D68, 084005 (2003)], and Khriplovich and Kirilin (KK) [J. Exp. Theor. Phys. 98, 1063 (2004)]. Though the same field variables in a covariant gauge are used, the results obtained differ from one another. The reason is that the different sets of diagrams have been used. Here we will argue that the quantum corrections to metric must be independent of the choice of field variables, i.e., must be reparametrization invariant. Using simple reparametrization transformation, we will show that the contribution considered by BDH, is not invariant under it. Meanwhile the contribution of the complete set of the diagrams, considered by KK, satisfies the requirement of the invariance.

  13. On the existence of certain axisymmetric interior metrics

    SciTech Connect (OSTI)

    Angulo Santacruz, C. [Department of Mathematics, University of West Indies, Kingston 6 (Jamaica); Batic, D. [Department of Mathematics, University of West Indies, Kingston 6 (Jamaica); Departamento de Matematicas, Universidad de los Andes, Cra. 1E No. 18A-10, Bogota (Colombia); Nowakowski, M. [Departamento de Fisica, Universidad de los Andes, Cra. 1E No. 18A-10, Bogota (Colombia)

    2010-08-15T23:59:59.000Z

    One of the effects of noncommutative coordinate operators is that the delta function connected to the quantum mechanical amplitude between states sharp to the position operator gets smeared by a Gaussian distribution. Although this is not the full account of the effects of noncommutativity, this effect is, in particular, important as it removes the point singularities of Schwarzschild and Reissner-Nordstroem solutions. In this context, it seems to be of some importance to probe also into ringlike singularities which appear in the Kerr case. In particular, starting with an anisotropic energy-momentum tensor and a general axisymmetric ansatz of the metric together with an arbitrary mass distribution (e.g., Gaussian), we derive the full set of Einstein equations that the noncommutative geometry inspired Kerr solution should satisfy. Using these equations we prove two theorems regarding the existence of certain Kerr metrics inspired by noncommutative geometry.

  14. Metric intersection problems in Cayley graphs and the Stirling recursion

    E-Print Network [OSTI]

    Phongpattanacharoen, Teeraphong

    2012-01-01T23:59:59.000Z

    In the symmetric group Sym(n) with n at least 5 let H be a conjugacy class of elements of order 2 and let \\Gamma be the Cayley graph whose vertex set is the group G generated by H (so G is Sym(n) or Alt(n)) and whose edge set is determined by H. We are interested in the metric structure of this graph. In particular, for g\\in G let B_{r}(g) be the metric ball in \\Gamma of radius r and centre g. We show that the intersection numbers \\Phi(\\Gamma; r, g):=|\\,B_{r}(e)\\,\\cap\\,B_{r}(g)\\,| are generalized Stirling functions in n and r. The results are motivated by the study of error graphs and related reconstruction problems.

  15. The Initial Value Problem Using Metric and Extrinsic Curvature

    E-Print Network [OSTI]

    James W. York

    2004-05-01T23:59:59.000Z

    The initial value problem is introduced after a thorough review of the essential geometry. The initial value equations are put into elliptic form using both conformal transformations and a treatment of the extrinsic curvature introduced recently. This use of the metric and the extrinsic curvature is manifestly equivalent to the author's conformal thin sandwich formulation. Therefore, the reformulation of the constraints as an elliptic system by use of conformal techniques is complete.

  16. Development of Technology Readiness Level (TRL) Metrics and Risk Measures

    SciTech Connect (OSTI)

    Engel, David W.; Dalton, Angela C.; Anderson, K. K.; Sivaramakrishnan, Chandrika; Lansing, Carina

    2012-10-01T23:59:59.000Z

    This is an internal project milestone report to document the CCSI Element 7 team's progress on developing Technology Readiness Level (TRL) metrics and risk measures. In this report, we provide a brief overview of the current technology readiness assessment research, document the development of technology readiness levels (TRLs) specific to carbon capture technologies, describe the risk measures and uncertainty quantification approaches used in our research, and conclude by discussing the next steps that the CCSI Task 7 team aims to accomplish.

  17. HyperKhaler Metrics Building and Integrable Models

    E-Print Network [OSTI]

    E. H. Saidi; M. B. Sedra

    2005-12-18T23:59:59.000Z

    Methods developed for the analysis of integrable systems are used to study the problem of hyperK\\"ahler metrics building as formulated in D=2 N=4 supersymmetric harmonic superspace. We show, in particular, that the constraint equation $\\beta\\partial^{++2}\\omega -\\xi^{++2}\\exp 2\\beta\\omega =0$ and its Toda like generalizations are integrable. Explicit solutions together with the conserved currents generating the symmetry responsible of the integrability of these equations are given. Other features are also discussed

  18. The d-bar-Neumann operator and the Kobayashi metric

    E-Print Network [OSTI]

    Kim, Mijoung

    2004-09-30T23:59:59.000Z

    between compactness of the partialdiff-Neumann operator and the property K in any convex domain. We also find a local property of the Kobayashi metric [Theorem IV.1], in which the domain is not necessary pseudoconvex. We find a more general condition than... through his deep insight, inexhaustible patience, and constant encouragement has been an inspiration to me during these years as his student. vi TABLE OF CONTENTS CHAPTER Page I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II...

  19. Advanced Fuels Campaign Light Water Reactor Accident Tolerant Fuel Performance Metrics

    SciTech Connect (OSTI)

    Brad Merrill; Melissa Teague; Robert Youngblood; Larry Ott; Kevin Robb; Michael Todosow; Chris Stanek; Mitchell Farmer; Michael Billone; Robert Montgomery; Nicholas Brown; Shannon Bragg-Sitton

    2014-02-01T23:59:59.000Z

    The safe, reliable and economic operation of the nation’s nuclear power reactor fleet has always been a top priority for the United States’ nuclear industry. As a result, continual improvement of technology, including advanced materials and nuclear fuels, remains central to industry’s success. Decades of research combined with continual operation have produced steady advancements in technology and yielded an extensive base of data, experience, and knowledge on light water reactor (LWR) fuel performance under both normal and accident conditions. In 2011, following the Great East Japan Earthquake, resulting tsunami, and subsequent damage to the Fukushima Daiichi nuclear power plant complex, enhancing the accident tolerance of LWRs became a topic of serious discussion. As a result of direction from the U.S. Congress, the U.S. Department of Energy Office of Nuclear Energy (DOE-NE) initiated an Accident Tolerant Fuel (ATF) Development program. The complex multiphysics behavior of LWR nuclear fuel makes defining specific material or design improvements difficult; as such, establishing qualitative attributes is critical to guide the design and development of fuels and cladding with enhanced accident tolerance. This report summarizes a common set of technical evaluation metrics to aid in the optimization and down selection of candidate designs. As used herein, “metrics” describe a set of technical bases by which multiple concepts can be fairly evaluated against a common baseline and against one another. Furthermore, this report describes a proposed technical evaluation methodology that can be applied to assess the ability of each concept to meet performance and safety goals relative to the current UO2 – zirconium alloy system and relative to one another. The resultant ranked evaluation can then inform concept down-selection, such that the most promising accident tolerant fuel design option(s) can continue to be developed for lead test rod or lead test assembly insertion into a commercial reactor within the desired timeframe (by 2022).

  20. On a Pregeometric Origin for Spacetime Dimensionality and Metric Structure

    E-Print Network [OSTI]

    W. M. Stuckey

    2002-08-20T23:59:59.000Z

    Motivated by Wheeler's bottom up pregeometry, we introduce a pregeometric approach that does not assume Wheeler's probability amplitudes for establishing spacetime neighborhoods. Rather, a non-trivial metric is produced via the concept of a uniformity base, which is generated with discrete topological groups over some arbitrary fundamental, denumerable set. We show how the concept of entourage multiplication for the elements of our uniformity base mirrors the underlying group structure. This fact is then exploited to create entourage sequences of maximal length, whence a fine metric structure. The resulting metric structure is, for certain group structures, consistent with E4-embeddable graphs. Examples over Z2 x Z4, D4, Z6, D3, Z8, and Z5 are provided. Euclidean embeddability over Z7 and Q8 is discussed. Unlike the statistical approaches typical of graph theory, this method generates dimensionality over low-order sets. Possible applications to the pregeometric modeling of quantum stochasticity and non-locality/non-separability, wave function collapse, and the M4 structure of spacetime are provided in the context of Z2 x Z2 x Z4.

  1. DEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein, Marilyn Brown, Richard Brown,

    E-Print Network [OSTI]

    Wh/year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metricDEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein June 2009 Short title: Defining a standard metric for electricity savings Keywords: Electricity savings

  2. DEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein, Marilyn Brown, Richard Brown,

    E-Print Network [OSTI]

    Diamond, Richard

    Wh/year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metricDEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein title: Defining a standard metric for electricity savings Keywords: Electricity savings, energy

  3. Projections of Full-Fuel-Cycle Energy and Emissions Metrics

    E-Print Network [OSTI]

    Coughlin, Katie

    2013-01-01T23:59:59.000Z

    unconventional market share in the United States is 12% in 2015, grows to a maximum of 16% in 2022, and declines

  4. User's Guide to the Energy Charting and Metrics Tool (ECAM)

    SciTech Connect (OSTI)

    Taasevigen, Danny J.; Koran, William

    2012-02-28T23:59:59.000Z

    The intent of this user guide is to provide a brief description of the functionality of the Energy Charting and Metrics (ECAM) tool, including the expanded building re-tuning functionality developed for Pacific Northwest National laboratory (PNNL). This document describes the tool's general functions and features, and offers detailed instructions for PNNL building re-tuning charts, a feature in ECAM intended to help building owners and operators look at trend data (recommended 15-minute time intervals) in a series of charts (both time series and scatter) to analyze air-handler, zone, and central plant information gathered from a building automation system (BAS).

  5. C-metric and the origin of inertia

    E-Print Network [OSTI]

    Hristu Culetu

    2014-12-03T23:59:59.000Z

    A particular form of the C-metric is investigated, giving it a non-standard interpretation and removing any singularity at $r = 0$. In the weak field limit of the accelerating black hole, the proper acceleration $A$ of a static observer is constant and the geometry becomes conformally-flat (anti de Sitter). The stress tensor is of $\\Lambda$-type ($\\Lambda = -3a^{2}/8\\pi G$) and its energy density is negative. We propose that $\\Lambda$ is responsible of inertial forces that appear in uniformly accelerated systems (far from the accelerating source $m$ and for $r regulated by means of the exponential factor $exp(-k/r), k > 0$.

  6. Polarizable vacuum analysis of the gravitational metric tensor

    E-Print Network [OSTI]

    Xing-Hao Ye

    2009-03-21T23:59:59.000Z

    The gravitational metric tensor implies a variable dielectric tensor of vacuum around gravitational matter. The curved spacetime in general relativity is then associated with a polarizable vacuum. It is found that the number density of the virtual dipoles in vacuum decreases with the distance from the gravitational centre. This result offers a polarizable vacuum interpretation of the gravitational force. Also, the anisotropy of vacuum polarization is briefly discussed, which appeals for observational proof of anisotropic light propagation in a vacuum altered by gravitational or electromagnetic field.

  7. Kernel-based distance metric learning for microarray data classification

    E-Print Network [OSTI]

    Xiong, Huilin; Chen, Xue-wen

    2006-06-01T23:59:59.000Z

    the test data. We only consider Gaussian kernel function in the proposed and SVM algorithms. 1. ALL-AML Leukemia Data: This data set, taken from the website [17], contains 72 samples of human acute leuke- mia. 47 samples belong to acute lymphoblastic... lymphoblastic leukemia (ALL), 20 of them to mixed line- age leukemia (MLL), a subset of human acute leukemia with a chromosomal translocation, and 28 of the samples are acute myelogenous leukemia (AML). Each sample gives the expression levels of 12582 genes...

  8. Laser Ranging Delay in the Bi-Metric Theory of Gravity

    E-Print Network [OSTI]

    Sergei M. Kopeikin; Wei-Tou Ni

    2006-03-02T23:59:59.000Z

    We introduce a linearized bi-metric theory of gravity with two metrics. The metric g_{ab} describes null hypersurfaces of the gravitational field while light moves on null hypersurfaces of the optical metric \\bar{g}_{ab}. Bi-metrism naturally arises in vector-tensor theories with matter being non-minimally coupled to gravity via long-range vector field. We derive explicit Lorentz-invariant solution for a light ray propagating in space-time of the bi-metric theory and disentangle relativistic effects associated with the two metrics. This anlysis can be valuable for future spaceborne laser missions ASTROD and LATOR dedicated to map various relativistic gravity parameters in the solar system to unparalleled degree of accuracy.

  9. Conceptual Soundness, Metric Development, Benchmarking, and Targeting for PATH Subprogram Evaluation

    SciTech Connect (OSTI)

    Mosey. G.; Doris, E.; Coggeshall, C.; Antes, M.; Ruch, J.; Mortensen, J.

    2009-01-01T23:59:59.000Z

    The objective of this study is to evaluate the conceptual soundness of the U.S. Department of Housing and Urban Development (HUD) Partnership for Advancing Technology in Housing (PATH) program's revised goals and establish and apply a framework to identify and recommend metrics that are the most useful for measuring PATH's progress. This report provides an evaluative review of PATH's revised goals, outlines a structured method for identifying and selecting metrics, proposes metrics and benchmarks for a sampling of individual PATH programs, and discusses other metrics that potentially could be developed that may add value to the evaluation process. The framework and individual program metrics can be used for ongoing management improvement efforts and to inform broader program-level metrics for government reporting requirements.

  10. Optical Anisotropy of Schwarzschild Metric within Equivalent Medium Framework

    E-Print Network [OSTI]

    Sina Khorasani; Bizhan Rashidian

    2009-12-16T23:59:59.000Z

    It is has been long known that the curved space in the presence of gravitation can be described as a non-homogeneous anisotropic medium in flat geometry with different constitutive equations. In this article, we show that the eigenpolarizations of such medium can be exactly solved, leading to a pseudo-isotropic description of curved vacuum with two refractive index eigenvalues having opposite signs, which correspond to forward and backward travel in time. We conclude that for a rotating universe, time-reversal symmetry is broken. We also demonstrate the applicability of this method to Schwarzschild metric and derive exact forms of refractive index. We derive the subtle optical anisotropy of space around a spherically symmetric, non-rotating and uncharged blackhole in the form of an elegant closed form expression, and show that the refractive index in such a pseudo-isotropic system would be a function of coordinates as well as the direction of propagation. Corrections arising from such anisotropy in the bending of light are shown and a simplified system of equations for ray-tracing in the equivalent medium of Schwarzschild metric is found.

  11. Metrics for Availability Analysis Using a Discrete Event Simulation Method

    SciTech Connect (OSTI)

    Schryver, Jack C [ORNL; Nutaro, James J [ORNL; Haire, Marvin Jonathan [ORNL

    2012-01-01T23:59:59.000Z

    The system performance metric 'availability' is a central concept with respect to the concerns of a plant's operators and owners, yet it can be abstract enough to resist explanation at system levels. Hence, there is a need for a system-level metric more closely aligned with a plant's (or, more generally, a system's) raison d'etre. Historically, availability of repairable systems - intrinsic, operational, or otherwise - has been defined as a ratio of times. This paper introduces a new concept of availability, called endogenous availability, defined in terms of a ratio of quantities of product yield. Endogenous availability can be evaluated using a discrete event simulation analysis methodology. A simulation example shows that endogenous availability reduces to conventional availability in a simple series system with different processing rates and without intermediate storage capacity, but diverges from conventional availability when storage capacity is progressively increased. It is shown that conventional availability tends to be conservative when a design includes features, such as in - process storage, that partially decouple the components of a larger system.

  12. Geometry of matrix product states: Metric, parallel transport, and curvature

    SciTech Connect (OSTI)

    Haegeman, Jutho, E-mail: jutho.haegeman@gmail.com; Verstraete, Frank [Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna (Austria) [Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna (Austria); Faculty of Physics and Astronomy, University of Ghent, Krijgslaan 281 S9, 9000 Gent (Belgium); Mariën, Michaël [Faculty of Physics and Astronomy, University of Ghent, Krijgslaan 281 S9, 9000 Gent (Belgium)] [Faculty of Physics and Astronomy, University of Ghent, Krijgslaan 281 S9, 9000 Gent (Belgium); Osborne, Tobias J. [Leibniz Universität Hannover, Institute of Theoretical Physics, Appelstrasse 2, D-30167 Hannover (Germany) [Leibniz Universität Hannover, Institute of Theoretical Physics, Appelstrasse 2, D-30167 Hannover (Germany); Leibniz Universität Hannover, Riemann Center for Geometry and Physics, Appelstrasse 2, D-30167 Hannover (Germany)

    2014-02-15T23:59:59.000Z

    We study the geometric properties of the manifold of states described as (uniform) matrix product states. Due to the parameter redundancy in the matrix product state representation, matrix product states have the mathematical structure of a (principal) fiber bundle. The total space or bundle space corresponds to the parameter space, i.e., the space of tensors associated to every physical site. The base manifold is embedded in Hilbert space and can be given the structure of a Kähler manifold by inducing the Hilbert space metric. Our main interest is in the states living in the tangent space to the base manifold, which have recently been shown to be interesting in relation to time dependence and elementary excitations. By lifting these tangent vectors to the (tangent space) of the bundle space using a well-chosen prescription (a principal bundle connection), we can define and efficiently compute an inverse metric, and introduce differential geometric concepts such as parallel transport (related to the Levi-Civita connection) and the Riemann curvature tensor.

  13. Standard metrics and methods for conducting Avian/wind energy interaction studies

    SciTech Connect (OSTI)

    Anderson, R.L. [California Energy Commission, Sacramento, CA (United States); Davis, H. [National Renewable Energy Lab., Golden, CO (United States); Kendall, W. [National Biological Service, Laurel, MD (United States)] [and others

    1997-12-31T23:59:59.000Z

    The awareness of the problem of avian fatalities at large scale wind energy developments first emerged in the late 1980`s at the Altamont Pass Wind Resource Area (WRA) in Central California. Observations of dead raptors at the Altamont Pass WRA triggered concern on the part of regulatory agencies, environmental/conservation groups, resource agencies, and wind and electric utility industries. This led the California Energy Commission staff, along with the planning departments of Alameda, Contra Costa, and Solano counties, to commission a study of bird mortality at the Altamont Pass WRA. In addition to the Altamont Pass WRA, other studies and observations have established that windplants kill birds. Depending upon the specific factors, this may or may not be a serious problem. The current level of scrutiny and caution exhibited during the permitting of a new windplant development in the United States results in costly delays and studies. This is occurring during a highly competitive period for electrical production companies in the USA. Clarification of the bird fatality issue is needed to bring it into perspective. This means standardizing metrics, defining terms, and recommending methods to be used in addressing or studying wind energy/bird interactions.

  14. THE ALGEBRA OF THE PARALLEL ENDOMORPHISMS OF A PSEUDO-RIEMANNIAN METRIC

    E-Print Network [OSTI]

    e is non trivial. Keywords: Pseudo-Riemannian, KÃ?hler, hyperkÃ?hler, parakÃ?hler metrics, holon- omy

  15. Greenhouse Gas Return on Investment: A New Metric for Energy Technology

    E-Print Network [OSTI]

    Reich-Weiser, Corinne; Dornfeld, David; Horne, Steve

    2008-01-01T23:59:59.000Z

    to decision making beyond energy technology. ACKNOWLEDGMENTSA New Metric for Energy Technology Corinne Reich-Weiser ,INTRODUCTION Alternative energy technologies such as solar,

  16. DOE Will Dispose of 34 Metric Tons of Plutonium by Turning it...

    National Nuclear Security Administration (NNSA)

    Will Dispose of 34 Metric Tons of Plutonium by Turning it into Fuel for Civilian Reactors | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People...

  17. Building Cost and Performance Metrics: Data Collection Protocol, Revision 1.0

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Solana, Amy E.; Spees, Kathleen L.

    2005-09-29T23:59:59.000Z

    This technical report describes the process for selecting and applying the building cost and performance metrics for measuring sustainably designed buildings in comparison to traditionally designed buildings.

  18. Advanced Rooftop Unit Control

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

    Advanced-Rooftop-Unit-Control Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors...

  19. " Million Housing Units, Final...

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

    Used and End Uses in Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census Division",,,,,,"East...

  20. " Million Housing Units, Final...

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

    Used and End Uses in Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census Division",,,"Pacific...

  1. " Million Housing Units, Final...

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

    Used and End Uses in Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" ,,,"East North Central Census...

  2. " Million Housing Units, Final...

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

    1 Space Heating in U.S. Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census Division",,,"Pacific...

  3. " Million Housing Units, Final...

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

    0 Space Heating in U.S. Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census Division",,,,,,"East...

  4. " Million Housing Units, Final...

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

    9 Space Heating in U.S. Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" " ",,,"East North Central Census...

  5. " Million Housing Units, Final...

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

    8 Space Heating in U.S. Homes in Northeast Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Northeast Census Region" ,,,"New England Census...

  6. United States Department of

    E-Print Network [OSTI]

    ., Ashland, OR 97520 and Gwyneth Myer, Consultant, 220 W. Rapp Rd. Unit 3, Talent, OR 97540. #12;2 THE FIRE

  7. " Million Housing Units, Final...

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

    1 Computers and Other Electronics in Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census...

  8. " Million Housing Units, Final...

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

    0 Computers and Other Electronics in Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census...

  9. " Million Housing Units, Final...

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

    9 Computers and Other Electronics in Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" ,,,"East North Central Census...

  10. " Million Housing Units, Final...

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

    8 Computers and Other Electronics in Homes in Northeast Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Northeast Census Region" ,,,"New England Census...

  11. " Million Housing Units, Final...

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

    8 Water Heating in U.S. Homes in Northeast Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Northeast Census Region" ,,,"New England Census...

  12. " Million Housing Units, Final...

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

    11 Water Heating in U.S. Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census Division",,,"Pacific...

  13. " Million Housing Units, Final...

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

    9 Water Heating in U.S. Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" ,,,"East North Central Census...

  14. " Million Housing Units, Final...

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

    0 Water Heating in U.S. Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census Division",,,,,,"East...

  15. FISHERY STATISTICS UNITED STATES

    E-Print Network [OSTI]

    FISHERY STATISTICS OF THE UNITED STATES 1972 STATISTICAL DIGEST NO. 66 Prepared by STATISTICS;ACKNOWLEDGMENTS The data in this edition of "Fishery Statistics of the United States" were collected in co- operation with the various States and tabulated by the staff of the Statistics and Market News Division

  16. Associative list processing unit

    DOE Patents [OSTI]

    Hemmert, Karl Scott; Underwood, Keith D.

    2013-01-29T23:59:59.000Z

    An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full. Also, an associative list processing unit and method comprising employing a plurality of prioritized cell blocks and using a tree of prioritized multiplexers descending from the plurality of cell blocks.

  17. United States Department of

    E-Print Network [OSTI]

    Brown, Gregory G.

    Assessment Thomas M. Quigley, Editor U.S. Department of Agriculture Forest Service Pacific Northwest Research, and Andy Wilson. Thomas M. Quigley Editor United States Department of Agriculture Forest Service United Service, Pacific Northwest Research Station. 120 p. (Quigley, Thomas M., ed.; Interior Columbia Basin

  18. United States Environmental

    E-Print Network [OSTI]

    Loudon, Catherine

    Protect Your Family From Lead in Your Home United States Environmental Protection Agency United · What you can do to protect your family · Where to go for more information Before renting or buying Family from Lead Hazards If you think your home has lead-based paint: · Don't try to remove lead

  19. Projections of Full-Fuel-Cycle Energy and Emissions Metrics

    E-Print Network [OSTI]

    Coughlin, Katie

    2013-01-01T23:59:59.000Z

    analysis study of coal-fired generation (Spath et al. 1999).of the mix of coals used for power generation are used tothan 40% of the coal used for power generation in the United

  20. The left invariant metric in the general linear group

    E-Print Network [OSTI]

    Andruchow, Esteban; Recht, Lazaro; Varela, Alejandro

    2011-01-01T23:59:59.000Z

    Left invariant metrics induced by the p-norms of the trace in the matrix algebra are studied on the general lineal group. By means of the Euler-Lagrange equations, existence and uniqueness of extremal paths for the length functional are established, and regularity properties of these extremal paths are obtained. Minimizing paths in the group are shown to have a velocity with constant singular values and multiplicity. In several special cases, these geodesic paths are computed explicitly. In particular the Riemannian geodesics, corresponding to the case p=2, are characterized as the product of two one-parameter groups. It is also shown that geodesics are one-parameter groups if and only if the initial velocity is a normal matrix. These results are further extended to the context of compact operators with p-summable spectrum, where a differential equation for the spectral projections of the velocity vector of an extremal path is obtained.

  1. Exact moduli space metrics for hyperbolic vortex polygons

    SciTech Connect (OSTI)

    Krusch, S. [School of Mathematics, Statistics and Actuarial Science, University of Kent, Canterbury CT2 7NF (United Kingdom); Speight, J. M. [Department of Pure Mathematics, University of Leeds, Leeds LS2 9JT (United Kingdom)

    2010-02-15T23:59:59.000Z

    Exact metrics on some totally geodesic submanifolds of the moduli space of static hyperbolic N-vortices are derived. These submanifolds, denoted as {sigma}{sub n,m}, are spaces of C{sub n}-invariant vortex configurations with n single vortices at the vertices of a regular polygon and m=N-n coincident vortices at the polygon's center. The geometric properties of {sigma}{sub n,m} are investigated, and it is found that {sigma}{sub n,n-1} is isometric to the hyperbolic plane of curvature -(3{pi}n){sup -1}. The geodesic flow on {sigma}{sub n,m} and a geometrically natural variant of geodesic flow recently proposed by Collie and Tong ['The dynamics of Chern-Simons vortices', Phys. Rev. D Part. Fields Gravit. Cosmol. 78, 065013 (2008);e-print arXiv:hep-th/0805.0602] are analyzed in detail.

  2. Non-relativistic metrics from back-reacting fermions

    E-Print Network [OSTI]

    Ling-Yan Hung; Dileep P. Jatkar; Aninda Sinha

    2010-06-29T23:59:59.000Z

    It has recently been pointed out that under certain circumstances the back-reaction of charged, massive Dirac fermions causes important modifications to AdS_2 spacetimes arising as the near horizon geometry of extremal black holes. In a WKB approximation, the modified geometry becomes a non-relativistic Lifshitz spacetime. In three dimensions, it is known that integrating out charged, massive fermions gives rise to gravitational and Maxwell Chern-Simons terms. We show that Schrodinger (warped AdS_3) spacetimes exist as solutions to a gravitational and Maxwell Chern-Simons theory with a cosmological constant. Motivated by this, we look for warped AdS_3 or Schrodinger metrics as exact solutions to a fully back-reacted theory containing Dirac fermions in three and four dimensions. We work out the dynamical exponent in terms of the fermion mass and generalize this result to arbitrary dimensions.

  3. Cosmology of hybrid metric-Palatini f(X)-gravity

    E-Print Network [OSTI]

    Salvatore Capozziello; Tiberiu Harko; Tomi S. Koivisto; Francisco S. N. Lobo; Gonzalo J. Olmo

    2013-03-21T23:59:59.000Z

    A new class of modified theories of gravity, consisting of the superposition of the metric Einstein-Hilbert Lagrangian with an $f(\\cal R)$ term constructed \\`{a} la Palatini was proposed recently. The dynamically equivalent scalar-tensor representation of the model was also formulated, and it was shown that even if the scalar field is very light, the theory passes the Solar System observational constraints. Therefore the model predicts the existence of a long-range scalar field, modifying the cosmological and galactic dynamics. An explicit model that passes the local tests and leads to cosmic acceleration was also obtained. In the present work, it is shown that the theory can be also formulated in terms of the quantity $X\\equiv \\kappa^2 T+R$, where T and R are the traces of the stress-energy and Ricci tensors, respectively. The variable X represents the deviation with respect to the field equation trace of general relativity. The cosmological applications of this hybrid metric-Palatini gravitational theory are also explored, and cosmological solutions coming from the scalar-tensor representation of f(X)-gravity are presented. Criteria to obtain cosmic acceleration are discussed and the field equations are analyzed as a dynamical system. Several classes of dynamical cosmological solutions, depending on the functional form of the effective scalar field potential, describing both accelerating and decelerating Universes are explicitly obtained. Furthermore, the cosmological perturbation equations are derived and applied to uncover the nature of the propagating scalar degree of freedom and the signatures these models predict in the large-scale structure.

  4. Metrics for Assessment of Smart Grid Data Integrity Attacks

    SciTech Connect (OSTI)

    Annarita Giani; Miles McQueen; Russell Bent; Kameshwar Poolla; Mark Hinrichs

    2012-07-01T23:59:59.000Z

    There is an emerging consensus that the nation’s electricity grid is vulnerable to cyber attacks. This vulnerability arises from the increasing reliance on using remote measurements, transmitting them over legacy data networks to system operators who make critical decisions based on available data. Data integrity attacks are a class of cyber attacks that involve a compromise of information that is processed by the grid operator. This information can include meter readings of injected power at remote generators, power flows on transmission lines, and relay states. These data integrity attacks have consequences only when the system operator responds to compromised data by redispatching generation under normal or contingency protocols. These consequences include (a) financial losses from sub-optimal economic dispatch to service loads, (b) robustness/resiliency losses from placing the grid at operating points that are at greater risk from contingencies, and (c) systemic losses resulting from cascading failures induced by poor operational choices. This paper is focused on understanding the connections between grid operational procedures and cyber attacks. We first offer two examples to illustrate how data integrity attacks can cause economic and physical damage by misleading operators into taking inappropriate decisions. We then focus on unobservable data integrity attacks involving power meter data. These are coordinated attacks where the compromised data are consistent with the physics of power flow, and are therefore passed by any bad data detection algorithm. We develop metrics to assess the economic impact of these attacks under re-dispatch decisions using optimal power flow methods. These metrics can be use to prioritize the adoption of appropriate countermeasures including PMU placement, encryption, hardware upgrades, and advance attack detection algorithms.

  5. Trigger-Wave Propagation in Arbitrary Metrics in Asynchronous Cellular Logic Arrays

    E-Print Network [OSTI]

    Dudek, Piotr

    Trigger-Wave Propagation in Arbitrary Metrics in Asynchronous Cellular Logic Arrays Przemyslaw image processing tasks using trigger-wave propagation in a medium with a hardware-controlled metric. The principles of wave propagation in cellular four-connected logic arrays emulating different distance measure

  6. New Einstein Metrics on 8#(S 2 S 3 ) Charles P. Boyer Krzysztof Galicki

    E-Print Network [OSTI]

    New Einstein Metrics on 8#(S 2 #2; S 3 ) Charles P. Boyer Krzysztof Galicki Abstract: We show that #8(S 2 #2;S 3 ) admits two 8-dimensional complex family of inequiva- lent non-regular Sasakian-Einstein structures. These are the #12;rst known non-regular Sasakian- Einstein metrics on this 5-manifold

  7. ORNL/TM-2006/505 The Oil Security Metrics Model

    E-Print Network [OSTI]

    METRICS MODEL A TOOL FOR EVALUATING THE PROSPECTIVE OIL SECURITY BENEFITS OF DOE'S ENERGY EFFICIENCY SECURITY AND ENERGY TECHNOLOGY R&D ......................................................13 5. THE COSTSORNL/TM-2006/505 The Oil Security Metrics Model: A Tool for Evaluating the Prospective Oil Security

  8. Performance Metrics for a Biomolecular Step Response Shaunak Sen and Richard M. Murray

    E-Print Network [OSTI]

    Murray, Richard M.

    Performance Metrics for a Biomolecular Step Response Shaunak Sen and Richard M. Murray Abstract is an important problem. Here we address this issue for the design of a fast biomolec- ular step response metrics, the difference of the step response from an ideal step and the relative difference between

  9. Einstein energy-momentum complex for a phantom black hole metric

    E-Print Network [OSTI]

    P. K. Sahoo; K. L. Mahanta; D. Goit; A. K. Sihna; S. S. Xulu; U. R. Das; A. Prasad; R. Prasad

    2015-01-16T23:59:59.000Z

    In this paper we calculate the energy distribution E(r) associated with a static spherically symmetric non-singular phantom black hole metric in Einstein's prescription in general relativity. As required for Einstein energy-momentum complex, we perform calculations in quasi-Cartesian coordinates. We also calculate momentum components and get zero values as expected from the geometry of the metric.

  10. Can Fault Prediction Models and Metrics be Used for Vulnerability Prediction? Yonghee Shin and Laurie Williams

    E-Print Network [OSTI]

    Young, R. Michael

    Can Fault Prediction Models and Metrics be Used for Vulnerability Prediction? Yonghee Shin to prioritize security inspection and testing efforts may be better served by a prediction model that indicates commonalities that may allow development teams to use traditional fault prediction models and metrics

  11. Pleba?ski-Demia?ski-like solutions in metric-affine gravity

    E-Print Network [OSTI]

    A. Garcia; F. W. Hehl; C. Laemmerzahl; A. Macias; J. Soccorro

    1998-03-03T23:59:59.000Z

    We consider a (non--Riemannian) metric--affine gravity theory, in particular its nonmetricity--torsion sector ``isomorphic'' to the Einstein--Maxwell theory. We map certain Einstein--Maxwell electrovacuum solutions to it, namely the Pleba\\'nski--Demia\\'nski class of Petrov type D metrics.

  12. The IsoMetrics Usability Inventory An operationalisation of ISO 9241-10

    E-Print Network [OSTI]

    Düntsch, Ivo

    1 The IsoMetrics Usability Inventory An operationalisation of ISO 9241-10 supporting summative 1232 366068 Email: i.duentsch@ulst.ac.uk #12;1 The IsoMetrics Usability Inventory An operationalisation of ISO 9241-10 supporting summative and formative evaluation of software systems Günther Gediga, Kai

  13. Risk Metrics for Dynamic Complex Infrastructure Systems such as the Power Transmission Grid

    E-Print Network [OSTI]

    Dobson, Ian

    Risk Metrics for Dynamic Complex Infrastructure Systems such as the Power Transmission Grid D. E in their probability versus size. This power law behavior suggests that conventional risk analysis does not apply of the power transmission grid. How these metrics change, implying changed risk, with different upgrade

  14. Impact of Different Economic Performance Metrics on the Perceived Value of Solar Photovoltaics

    SciTech Connect (OSTI)

    Drury, E.; Denholm, P.; Margolis, R.

    2011-10-01T23:59:59.000Z

    Photovoltaic (PV) systems are installed by several types of market participants, ranging from residential customers to large-scale project developers and utilities. Each type of market participant frequently uses a different economic performance metric to characterize PV value because they are looking for different types of returns from a PV investment. This report finds that different economic performance metrics frequently show different price thresholds for when a PV investment becomes profitable or attractive. Several project parameters, such as financing terms, can have a significant impact on some metrics [e.g., internal rate of return (IRR), net present value (NPV), and benefit-to-cost (B/C) ratio] while having a minimal impact on other metrics (e.g., simple payback time). As such, the choice of economic performance metric by different customer types can significantly shape each customer's perception of PV investment value and ultimately their adoption decision.

  15. Dirac Cone Metric and the Origin of the Spin Connections in Monolayer Graphene

    E-Print Network [OSTI]

    Bo Yang

    2015-06-11T23:59:59.000Z

    We show that the modulation of the hopping amplitudes in the honeycomb lattice of the monolayer graphene uniquely defines a metric which corresponds to the shape of the Dirac cone. The spin connection of this effective metric field can be obtained from the microscopic tight-binding Hamiltonian exactly, completing the analogy between the sublattice pseudospin travelling in the monolayer graphene with ripples and strain fields, and the real spin $1/2$ fermion travelling in a curved space. The effective metric as seen by the sublattice pseudospin is different from the real space metric as defined by the two-dimensional manifold of the graphene monolayer. All relevant terms of the effective gauge field from the microscopic model is calculated exactly for a unimodular effective metric.

  16. BUILDING EVACUATION Take personal belongings

    E-Print Network [OSTI]

    . During thunderstorms: Do not use computers Stay inside away from transmission towers to avoid lightning

  17. Automatically clustering similar units for unit selection in speech synthesis. 

    E-Print Network [OSTI]

    Black, Alan W; Taylor, Paul A

    1997-01-01T23:59:59.000Z

    This paper describes a new method for synthesizing speech by concatenating sub-word units from a database of labelled speech. A large unit inventory is created by automatically clustering units of the same phone class ...

  18. " Million Housing Units, Final...

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

    3 Appliances in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before 1940","1940 to 1949","1950...

  19. " Million Housing Units, Final...

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

    3 Televisions in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before 1940","1940 to 1949","1950...

  20. " Million Housing Units, Final...

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

    4 Televisions in U.S. Homes, by Number of Household Members, 2009" " Million Housing Units, Final" ,,"Number of Household Members" ,"Total U.S.1 (millions)" ,,,,,,"5 or More...

  1. Stochastic Unit Commitment in

    E-Print Network [OSTI]

    Römisch, Werner

    the amount of installed pumped storage capacity enables the inclusion of pumped storage plants units. Its total capacity is about 13,000 megawatts (MW), including a hydro capacity of 1,700 MW

  2. Associative list processing unit

    DOE Patents [OSTI]

    Hemmert, Karl Scott; Underwood, Keith D

    2014-04-01T23:59:59.000Z

    An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full.

  3. " Million Housing Units, Final...

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

    6 Space Heating in U.S. Homes, by Climate Region, 2009" " Million Housing Units, Final" ,,"Climate Region2" ,"Total U.S.1 (millions)" ,,"Very Cold","Mixed- Humid","Mixed-Dry"...

  4. " Million Housing Units, Final...

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

    7 Space Heating in U.S. Homes, by Census Region, 2009" " Million Housing Units, Final" ,,"Census Region" ,"Total U.S.1 (millions)" ,,"Northeast","Midwest","South","West" "Space...

  5. " Million Housing Units, Final...

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

    4 Space Heating in U.S. Homes, by Number of Household Members, 2009" " Million Housing Units, Final" ,,"Number of Household Members" ,"Total U.S.1 (millions)" ,,,,,,"5 or More...

  6. " Million Housing Units, Final...

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

    3 Space Heating in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before 1940","1940 to...

  7. Voltage verification unit

    DOE Patents [OSTI]

    Martin, Edward J. (Virginia Beach, VA)

    2008-01-15T23:59:59.000Z

    A voltage verification unit and method for determining the absence of potentially dangerous potentials within a power supply enclosure without Mode 2 work is disclosed. With this device and method, a qualified worker, following a relatively simple protocol that involves a function test (hot, cold, hot) of the voltage verification unit before Lock Out/Tag Out and, and once the Lock Out/Tag Out is completed, testing or "trying" by simply reading a display on the voltage verification unit can be accomplished without exposure of the operator to the interior of the voltage supply enclosure. According to a preferred embodiment, the voltage verification unit includes test leads to allow diagnostics with other meters, without the necessity of accessing potentially dangerous bus bars or the like.

  8. " Million Housing Units, Final...

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

    6 Televisions in U.S. Homes, by Climate Region, 2009" " Million Housing Units, Final" ,,"Climate Region2" ,"Total U.S.1 (millions)" ,,"Very Cold","Mixed- Humid","Mixed-Dry"...

  9. United States Department of

    E-Print Network [OSTI]

    of a typical wind energy production facility, the results warrant further research on the use of acoustic;1 INTRODUCTION Over the past decade, wind energy production capacity in the United States has increased

  10. " Million Housing Units, Preliminary"

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

    Computers and Other Electronics in U.S. Homes, By Number of Household Members, 2009" " Million Housing Units, Preliminary" ,,"Number of Household Members" ,"Total U.S.1 (millions)"...

  11. " Million Housing Units, Final...

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

    3 Computers and Other Electronics in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before...

  12. " Million Housing Units, Final...

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

    7 Computers and Other Electronics in U.S. Homes, by Census Region, 2009" " Million Housing Units, Final" ,,"Census Region" ,"Total U.S.1 (millions)" ,,"Northeast","Midwest","South"...

  13. " Million Housing Units, Final"

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

    5 Computers and Other Electronics in U.S. Homes, by Household Income, 2009" " Million Housing Units, Final" ,,"Household Income" ,"Total U.S.1 (millions)",,,"Below Poverty...

  14. " Million Housing Units, Final...

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

    7 Water Heating in U.S. Homes, by Census Region, 2009" " Million Housing Units, Final" ,,"Census Region" ,"Total U.S.1 (millions)" ,,"Northeast","Midwest","South","West" "Water...

  15. " Million Housing Units, Final...

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

    3 Water Heating in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before 1940","1940 to...

  16. " Million Housing Units, Final...

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

    4 Water Heating in U.S. Homes, by Number of Household Members, 2009" " Million Housing Units, Final" ,,"Number of Household Members" ,"Total U.S.1 (millions)" ,,,,,,"5 or More...

  17. " Million Housing Units, Final...

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

    6 Water Heating in U.S. Homes, by Climate Region, 2009" " Million Housing Units, Final" ,,"Climate Region2" ,"Total U.S.1 (millions)" ,,"Very Cold","Mixed- Humid","Mixed-Dry"...

  18. " Million Housing Units, Final...

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

    5 Water Heating in U.S. Homes, by Household Income, 2009" " Million Housing Units, Final" ,,"Household Income" ,"Total U.S.1 (millions)",,,"Below Poverty Line2" ,,"Less than...

  19. " Million Housing Units, Final"

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

    Housing Units, Final" ,,"Household Income" ,"Total U.S.1 (millions)",,,"Below Poverty Line2" ,,"Less than 20,000","20,000 to 39,999","40,000 to 59,999","60,000 to...

  20. " Million Housing Units, Final...

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

    Housing Units, Final" ,,"Household Income" ,"Total U.S.1 (millions)",,,"Below Poverty Line2" ,,"Less than 20,000","20,000 to 39,999","40,000 to 59,999","60,000 to...

  1. Enhanced Accident Tolerant LWR Fuels National Metrics Workshop Report

    SciTech Connect (OSTI)

    Lori Braase

    2013-01-01T23:59:59.000Z

    The U.S. Department of Energy Office of Nuclear Energy (DOE-NE), in collaboration with the nuclear industry, has been conducting research and development (R&D) activities on advanced Light Water Reactor (LWR) fuels for the last few years. The emphasis for these activities was on improving the fuel performance in terms of increased burnup for waste minimization and increased power density for power upgrades, as well as collaborating with industry on fuel reliability. After the events at the Fukushima Nuclear Power Plant in Japan in March 2011, enhancing the accident tolerance of LWRs became a topic of serious discussion. In the Consolidated Appropriations Act, 2012, Conference Report 112-75, the U.S. Congress directed DOE-NE to: • Give “priority to developing enhanced fuels and cladding for light water reactors to improve safety in the event of accidents in the reactor or spent fuel pools.” • Give “special technical emphasis and funding priority…to activities aimed at the development and near-term qualification of meltdown-resistant, accident-tolerant nuclear fuels that would enhance the safety of present and future generations of light water reactors.” • Report “to the Committee, within 90 days of enactment of this act, on its plan for development of meltdown-resistant fuels leading to reactor testing and utilization by 2020.” Fuels with enhanced accident tolerance are those that, in comparison with the standard UO2-zirconium alloy system currently used by the nuclear industry, can tolerate loss of active cooling in the reactor core for a considerably longer time period (depending on the LWR system and accident scenario) while maintaining or improving the fuel performance during normal operations, and operational transients, as well as design-basis and beyond design-basis events. The overall draft strategy for development and demonstration is comprised of three phases: Feasibility Assessment and Down-selection; Development and Qualification; and Commercialization. The activities performed during the feasibility assessment phase include laboratory scale experiments; fuel performance code updates; and analytical assessment of economic, operational, safety, fuel cycle, and environmental impacts of the new concepts. The development and qualification stage will consist of fuel fabrication and large scale irradiation and safety basis testing, leading to qualification and ultimate NRC licensing of the new fuel. The commercialization phase initiates technology transfer to industry for implementation. Attributes for fuels with enhanced accident tolerance include improved reaction kinetics with steam and slower hydrogen generation rate, while maintaining acceptable cladding thermo-mechanical properties; fuel thermo-mechanical properties; fuel-clad interactions; and fission-product behavior. These attributes provide a qualitative guidance for parameters that must be considered in the development of fuels and cladding with enhanced accident tolerance. However, quantitative metrics must be developed for these attributes. To initiate the quantitative metrics development, a Light Water Reactor Enhanced Accident Tolerant Fuels Metrics Development Workshop was held October 10-11, 2012, in Germantown, Maryland. This document summarizes the structure and outcome of the two-day workshop. Questions regarding the content can be directed to Lori Braase, 208-526-7763, lori.braase@inl.gov.

  2. Meaningful Energy Efficiency Performance Metrics for the Process Industries

    E-Print Network [OSTI]

    Kumana, J. D.; Sidhwa, N. R.

    industries have developed standard met- rics for their plant performance. A notable example is the Solomon Energy Intensity Index (EII) for Oil Refining, which builds up the overall plant energy index from the energy indices for individual process units.... Energy Intensity, Oil & Gas Industry 0 10 20 30 40 50 60 70 1999 2000 2001 2002 2003 2004 2005 2006 Ce n t s / BO E Oil & Gas prod'n Oil Refining Gas Processing Figure 11. Energy Intensity Trends for Different Business Units The ?standard energy...

  3. Relation of the wave{propagation metric tensor to the curvatures of the slowness and ray{velocity surfaces

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Relation of the wave{propagation metric tensor to the curvatures of the slowness and ray The contravariant components of the wave{propagation metric tensor equal half the second{order partial derivatives. The relations of the wave{propagation metric tensor to the curvature matrix and Gaussian curvature

  4. Metrics On Unitary Matrices And Their Application To Quantifying The Degree Of Non-Commutativity Between Unitary Matrices

    E-Print Network [OSTI]

    H. F. Chau

    2011-07-06T23:59:59.000Z

    By studying the minimum resources required to perform a unitary transformation, families of metrics and pseudo-metrics on unitary matrices that are closely related to a recently reported quantum speed limit by the author are found. Interestingly, this family of metrics can be naturally converted into useful indicators of the degree of non-commutativity between two unitary matrices.

  5. A Metric Taxonomy for Supervisory Control of Unmanned Vehicles M.L. Cummings, Patricia Pina, Jacob W. Crandall

    E-Print Network [OSTI]

    Cummings, Mary "Missy"

    1 A Metric Taxonomy for Supervisory Control of Unmanned Vehicles M.L. Cummings, Patricia Pina-system performance as well. To this end, this paper will describe a supervisory control metric taxonomy this taxonomy can be used to identify a robust set of metrics. I. Introduction The DoD's strategic roadmap

  6. Best Buys and Unit Pricing

    E-Print Network [OSTI]

    Anding, Jenna

    2000-02-02T23:59:59.000Z

    This guide explains how to determine a unit price--the cost of an item based on a specific unit such as pound or ounce. Unit pricing can be used to identify foods that are the most economical....

  7. Table B1. Summary statistics for natural gas in the United States, metric equivalents, 2009-2013

    U.S. Energy Information Administration (EIA) 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 onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2"

  8. Quantum-mechanical nonequivalence of metrics of centrally symmetric uncharged gravitational field

    E-Print Network [OSTI]

    M. V. Gorbatenko; V. P. Neznamov

    2013-08-02T23:59:59.000Z

    Quantum-mechanical analysis shows that the metrics of a centrally symmetric uncharged gravitational field, which are exact solutions of the general relativity equations, are physically non-equivalent. The classical Schwarzschield metric and the Schwarzschild metrics in isotropic and harmonic coordinates provide for the existence of stationary bound states of Dirac particles with a real energy spectrum. The Hilbert condition g_{00}>0 is responsible for zero values of the wave functions under the "event horizon" that leads to the absence of Hawking radiation. For the Eddington-Finkelstein and Painleve-Gullstrand metrics, stationary bound states of spin-half particles cannot exist because Dirac Hamiltonians are non-Hermitian. For these metrics, the condition g_{00}>0 also leads to the absence of Hawking evaporation. For the Finkelstein-Lemaitre and Kruskal metrics, Dirac Hamiltonians are explicitly time-dependent, and stationary bound states of spin-half particles cannot exist for them. The Hilbert condition for these metrics does not place any constraints on the domains of the wave functions. Hawking evaporation of black holes is possible in this case. The results can lead to revisiting some concepts of the standard cosmological model related to the evolution of the universe and interaction of collapsars with surrounding matter.

  9. A common visual metric for approximate number and density

    E-Print Network [OSTI]

    Kingdom, Frederick A. A.

    is largely determined by the number of objects, whereas low SF energy depends more on the area occupied, Canada H3A 1A1; d Applied Vision Research Centre, City University, London EC1V 0HB, United Kingdom; and e response of mechanisms tuned to low and high spatial frequencies (SFs), because energy at high SFs

  10. ZIRCONIUM AND HAFNIUM (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    concentrates: Australia, 48%; South Africa, 47%; and other, 5%. Zirconium, unwrought, including powder: France, 51%; Germany, 10%; United Kingdom, 10%; South Africa, 9%; and other, 20%. Hafnium, unwrought: France. The leading consumers of zirconium metal and hafnium metal are the nuclear energy and chemical process

  11. (Data in metric tons of gold content unless otherwise noted)

    E-Print Network [OSTI]

    %; electrical and electronics, 9%; dental and other, 22%. Salient Statistics--United States: 2006 2007 2008 2009,630 9,700 Net import reliance 6 as a percentage of apparent consumption E E E E 33 Recycling: In 2010­09): 2 Canada, 31%; Mexico, 30%; Peru, 13%; Chile, 8%; and other, 18%. Tariff: Most imports of unwrought

  12. (Data in metric tons of gold content unless otherwise noted)

    E-Print Network [OSTI]

    %; electrical and electronics, 7%; dental and other, 21%. Salient Statistics--United States: 2005 2006 2007 2008 ounce 4 446 606 699 *874 950 Employment, mine and mill, number 5 7,910 8,350 9,130 9,560 9,600 Net%; Peru, 29%; Mexico, 16%; Chile, 9%; and other, 16%. Tariff: Most imports of unwrought gold, including

  13. (Data in metric tons of gold content unless otherwise noted)

    E-Print Network [OSTI]

    %; dental, 10%; electrical and electronics, 7%; and other, 29%. Salient Statistics--United States: 2007 2008,560 9,630 10,200 10,300 Net import reliance 6 as a percentage of apparent consumption E E E 40 36 Sources (2007­10): 2 Mexico, 49%; Canada, 25%; Colombia, 8%; Peru, 5%; and other, 13%. Tariff: Most

  14. (Data in metric tons of gold content unless otherwise noted)

    E-Print Network [OSTI]

    %; dental, 12%; electrical and electronics, 5%; and other, 17%. Salient Statistics--United States: 2008 2009 9,560 9,650 10,300 11,200 12,000 Net import reliance 6 as a percentage of apparent consumption E E consumption. Import Sources (2008­11): 2 Mexico, 57%; Canada, 20%; Colombia, 9%; Peru, 3%; and other, 11

  15. From Dark Energy and Dark Matter to Dark Metric

    E-Print Network [OSTI]

    S. Capozziello; M. De Laurentis; M. Francaviglia; S. Mercadante

    2008-08-04T23:59:59.000Z

    It is nowadays clear that General Relativity cannot be the definitive theory of Gravitation due to several shortcomings that come out both from theoretical and experimental viewpoints. At large scales (astrophysical and cosmological) the attempts to match it with the latest observational data lead to invoke Dark Energy and Dark Matter as the bulk components of the cosmic fluid. Since no final evidence, at fundamental level, exists for such ingredients, it is clear that General Relativity presents shortcomings at infrared scales. On the other hand, the attempts to formulate more general theories than Einstein's one give rise to mathematical difficulties that need workarounds that, in turn, generate problems from the interpretative viewpoint. We present here a completely new approach to the mathematical objects in terms of which a theory of Gravitation may be written in a first-order (a' la Palatini) formalism, and introduce the concept of Dark Metric which could completely bypass the introduction of disturbing concepts as Dark Energy and Dark Matter.

  16. Sensitivity of Multi-gas Climate Policy to Emission Metrics

    SciTech Connect (OSTI)

    Smith, Steven J.; Karas, Joseph F.; Edmonds, James A.; Eom, Jiyong; Mizrahi, Andrew H.

    2013-04-01T23:59:59.000Z

    Multi-gas greenhouse emission targets require that different emissions be combined into an aggregate total. The Global Warming Potential (GWP) index is currently used for this purpose, despite various criticisms of the underlying concept. It is not possible to uniquely define a single metric that perfectly captures the different impacts of emissions of substances with widely disparate atmospheric lifetimes, which leads to a wide range of possible index values. We examine the sensitivity of emissions and climate outcomes to the value of the index used to aggregate methane emissions using a technologically detailed integrated assessment model. We find that the sensitivity to index value is of order 4-14% in terms of methane emissions and 2% in terms of total radiative forcing, using index values between 4 and 70 for methane, with larger regional differences in some cases. The sensitivity to index value is much higher in economic terms, with total 2-gas mitigation cost decreasing 4-5% for a lower index and increasing 10-13% for a larger index, with even larger changes if the emissions reduction targets are small. The sensitivity to index value also depends on the assumed maximum amount of mitigation available in each sector. Evaluation of the maximum mitigation potential for major sources of non-CO2 greenhouse gases would greatly aid analysis

  17. Sandia Energy - Phasor Measurement Units

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

    Phasor Measurement Units Home Stationary Power Grid Modernization Cyber Security for Electric Infrastructure Phasor Measurement Units Phasor Measurement Unitsashoter2015-05-11T21:0...

  18. On spherically symmetric metric satisfying the positive kinetic energy coordinate condition

    E-Print Network [OSTI]

    T. Mei

    2008-02-28T23:59:59.000Z

    Generally speaking, there is a negative kinetic energy term in the Lagrangian of the Einstein-Hilbert action of general relativity; On the other hand, the negative kinetic energy term can be vanished by designating a special coordinate system. For general spherically symmetric metric, the question that seeking special coordinate system that satisfies the positive kinetic energy coordinate condition is referred to solving a linear first-order partial differential equation. And then, we present a metric corresponding to the Reissner-Nordstrom solution that satisfies the positive kinetic energy coordinate condition. Finally, we discuss simply the case of the Tolman metric.

  19. Solving Unit Commitment by a Unit Decommitment Method

    E-Print Network [OSTI]

    Solving Unit Commitment by a Unit Decommitment Method Chung-Li Tsengy,Chao-an Liz, Shmuel S. Oren x October 14, 1997 Abstract In this paper, we present an e cient and robust method for solving unit commit- ment problem using a unit decommitment method. 1 Introduction A problem that must be frequently solved

  20. " Million U.S. Housing Units"

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

    5 Space Heating Usage Indicators by Type of Housing Unit, 2005" " Million U.S. Housing Units" ,,"Type of Housing Unit" ,"Housing Units (millions)","Single-Family...

  1. Geometric quantization and dynamical constructions on the space of Kähler metrics

    E-Print Network [OSTI]

    Rubinstein, Yanir Akiva

    2008-01-01T23:59:59.000Z

    This Thesis is concerned with the study of the geometry and structure of the space of Kihler metrics representing a fixed cohomology class on a compact Kähler manifold. The first part of the Thesis is concerned with a ...

  2. Smart Grid Status and Metrics Report | OSTI, US Dept of Energy...

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

    Smart Grid Status and Metrics Report Re-direct Destination: To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived...

  3. Environmental Assessment and Metrics for Solar: Case Study of SolFocus Solar Concentrator Systems

    E-Print Network [OSTI]

    Reich-Weiser, Corinne; Dornfeld, David; Horne, Steve

    2008-01-01T23:59:59.000Z

    Environmental Assessment and Metrics for Solar: Case StudyEnvironmental Installation impacts of PV electricity generation - a critical comparison of energy supply options,” in 21st European Photovoltaic Solar

  4. Risk Measures Constituting Risk Metrics for Decision Making in the Chemical Process Industry

    E-Print Network [OSTI]

    Prem, Katherine

    2012-02-14T23:59:59.000Z

    monetization. Predicting incidents as leading metrics is pivotal to improving plant processes and, for individual and societal safety in the vicinity of the plant (portfolio). From this study it can be concluded that the comprehensive judgments of all the risks...

  5. Automated perfusion-weighted MRI metrics via localized arterial input functions

    E-Print Network [OSTI]

    Lorenz, Cory, 1981-

    2004-01-01T23:59:59.000Z

    This thesis describes and validates a new method for calculating perfusion-weighted MRI (PWI) metrics, a non-invasive technique for calculating cerebral blood flow by tracking a bolus of contrast agent. Past methods to do ...

  6. Development of a multiple metric index for macroinvertebrates collected from lower Missouri River floodplain wetlands

    E-Print Network [OSTI]

    Koontz, Jason Alexander

    2010-07-26T23:59:59.000Z

    ................................................................................................................................................ 20 2.1 Project Overview ................................................................................................................... 20 2.2 Macroinvertebrate Collections... error-bar plots of individual metric scores...................................................... 75 Figure 19: USGS discharge data at Saint Charles Missouri River ................................................................ 77 Figure 20: Scatter...

  7. SECURITY METRICS: MEASUREMENTS TO SUPPORT THE CONTINUED DEVELOPMENT OF INFORMATION SECURITY TECHNOLOGY

    E-Print Network [OSTI]

    SECURITY METRICS: MEASUREMENTS TO SUPPORT THE CONTINUED DEVELOPMENT OF INFORMATION SECURITY TECHNOLOGY Shirley Radack, Editor Computer Security Division Information Technology Laboratory National and to protect their systems and information from security threats and risks. There have been many past efforts

  8. A Novel Routing Metric for Environmentally-Powered Sensors With Hybrid

    E-Print Network [OSTI]

    Ingram, Mary Ann

    for remote patient monitoring, monitoring the health of civil structures (e.g. bridges, office buildings (CHESS)" routing metric, we intend to extend the lifetime of an energy-constrained network using

  9. Multi-objective Optimisation using S-metric Selection: Application to three-dimensional Solution Spaces

    E-Print Network [OSTI]

    Coello, Carlos A. Coello

    Emmerich University of Leiden Leiden Institute for Advanced Computer Science 2333 CA Leiden, NL http://www.liacs.nl/ emmerich@liacs.nl Abstract- The S-metric or hypervolume measure is a distinguished quality measure

  10. Self-dual metrics on toric 4-manifolds: extending the Joyce construction 

    E-Print Network [OSTI]

    Griffiths, Hugh Norman

    2009-01-01T23:59:59.000Z

    Toric geometry studies manifolds M2n acted on effectively by a torus of half their dimension, Tn. Joyce shows that for such a 4-manifold sufficient conditions for a conformal class of metrics on the free part of the ...

  11. Optimization of Geoscience Laser Altimeter System waveform metrics to support vegetation measurements

    E-Print Network [OSTI]

    Lefsky, Michael

    Optimization of Geoscience Laser Altimeter System waveform metrics to support vegetation GLAS Optimization Remote sensing Vegetation structure The Geoscience Laser Altimeter System (GLAS) has optimized a noise coefficient which could be constant or vary according to observation period or noise

  12. Gravitational Analog of Faraday's Law via Torsion and a Metric with an Antisymmetric Part

    E-Print Network [OSTI]

    Philip D. Mannheim; J. J. Poveromo

    2014-08-25T23:59:59.000Z

    In this paper we show that in the presence of torsion and a metric with an antisymmetric part one can construct a gravitational analog of Faraday's law of electromagnetism.

  13. Inflation and CMB Anisotropy from Quantum Metric Fluctuations

    E-Print Network [OSTI]

    Leonid Marochnik; Daniel Usikov

    2015-02-08T23:59:59.000Z

    We propose a model of cosmological evolution of the early and late Universe which is consistent with observational data and naturally explains the origin of inflation and dark energy. We show that the de Sitter accelerated expansion of the FLRW space with no matter fields (hereinafter, empty space) is its natural state, and the model does not require either a scalar field or cosmological constant or any other hypotheses. This is due to the fact that the de Sitter state is an exact solution of the rigorous mathematically consistent equations of one-loop quantum gravity for the empty FLRW space that are finite off the mass shell. Space without matter fields is not empty, as it always has the natural quantum fluctuations of the metric, i.e. gravitons. Therefore, the empty (in this sense) space is filled with gravitons, which have the backreaction effect on its evolution over time forming a self-consistent de Sitter instanton leading to the exponentially accelerated expansion of the Universe. At the start and the end of cosmological evolution, the Universe is assumed to be empty, which explains the origin of inflation and dark energy. This scenario leads to the prediction that the signs of the parameter 1+w should be opposite in both cases, and this fact is consistent with observations. The fluctuations of the number of gravitons lead to fluctuations of their energy density which in turn leads to the observed CMB temperature anisotropy of the order of 10^-5 and CMB polarization. In the frame of this scenario, it is not a hypothetical scalar field that generates inflation and relic gravitational waves but on the contrary, the gravitational waves (gravitons) generate dark energy, inflation, CMB anisotropy and polarization.

  14. EDDY CURRENT INVERSION AND ESTIMATION METRICS FOR EVALUATING THERMAL BARRIER COATINGS

    SciTech Connect (OSTI)

    Sabbagh, Harold A.; Murphy, R. Kim; Sabbagh, Elias H. [Victor Technologies LLC, Bloomington, IN 47401 (United States); Knopp, Jeremy S. [Air Force Research Laboratory, Wright-Patterson AFB, OH 45433 (United States); Aldrin, John C. [Computational Tools, Gurnee, IL 60031 (United States); Nyenhuis, John [Dept. of Electric Computer Engineering, Purdue University, West Lafayette, IN (United States)

    2010-02-22T23:59:59.000Z

    In this paper, sophisticated eddy-current techniques incorporating model-based inverse methods were successfully demonstrated to measure the thickness and remaining-life of high-temperature coatings. To further assure the performance of these inverse methods, several estimation metrics including Fisher Information, Cramer-Rao Lower Bound (CRLB), covariance, and singular value decomposition (SVD) are introduced. The connections and utility of these metrics are illustrated in the design of eddy current methods for estimating layer thickness, conductivity and probe liftoff.

  15. On the Doppler effect for light from orbiting sources in Kerr-type metrics

    E-Print Network [OSTI]

    S. Cisneros; G. Goedecke; C. Beetle; M. Engelhardt

    2015-01-23T23:59:59.000Z

    A formula is derived for the combined motional and gravitational Doppler effect in general stationary axisymmetric metrics for a photon emitted parallel or antiparallel to the assumed circular orbital motion of its source. The same formula is derived from eikonal approximation and Killing vector approaches to elucidate connections between observational astronomy and modern Relativity. The formula yields expected results in the limits of a moving or stationary source in the exterior Kerr and Schwarzschild metrics and a moving source in flat space.

  16. United States of Agriculture

    E-Print Network [OSTI]

    United States Department of Agriculture Forest Service Intermountain Research Station General. in the aircraft nuclear propulsion department at the National Reactor Testing Station in Idaho. In 1961 Rothermel.S. Department of Agriculture, Fire Laboratory at Missoula was conceived in the aftermath of the Mann Gulch fire

  17. United States Department of

    E-Print Network [OSTI]

    are thought to contribute to carbon sequestration, including current debates on this topic. The science regarding forestry and carbon sequestration is more advanced and less controversial than that for range, land management, carbon sequestration, carbon markets, United States. #12;ii Executive Summary

  18. United States Department of

    E-Print Network [OSTI]

    Report NRS-112 Modeling the Effects of Emerald Ash Borer on Forest Composition in the Midwest of human population, energy, consumption, land use, and economic models to project the future condition of forests in the Midwest and Northeast United States. Our results suggest that in most cases EAB

  19. United States Department of

    E-Print Network [OSTI]

    to Alabama, is receiving increasing attention as an economically recoverable natural gas source, and proximity to natural gas markets in the heavily urbanized northeastern United States have prompted increased-10 Reptile, Amphibian, and Small Mammal Species Associated with Natural Gas Development

  20. Implementing the Data Center Energy Productivity Metric in a High Performance Computing Data Center

    SciTech Connect (OSTI)

    Sego, Landon H.; Marquez, Andres; Rawson, Andrew; Cader, Tahir; Fox, Kevin M.; Gustafson, William I.; Mundy, Christopher J.

    2013-06-30T23:59:59.000Z

    As data centers proliferate in size and number, the improvement of their energy efficiency and productivity has become an economic and environmental imperative. Making these improvements requires metrics that are robust, interpretable, and practical. We discuss the properties of a number of the proposed metrics of energy efficiency and productivity. In particular, we focus on the Data Center Energy Productivity (DCeP) metric, which is the ratio of useful work produced by the data center to the energy consumed performing that work. We describe our approach for using DCeP as the principal outcome of a designed experiment using a highly instrumented, high-performance computing data center. We found that DCeP was successful in clearly distinguishing different operational states in the data center, thereby validating its utility as a metric for identifying configurations of hardware and software that would improve energy productivity. We also discuss some of the challenges and benefits associated with implementing the DCeP metric, and we examine the efficacy of the metric in making comparisons within a data center and between data centers.

  1. Thermal insulated glazing unit

    DOE Patents [OSTI]

    Selkowitz, S.E.; Arasteh, D.K.; Hartmann, J.L.

    1988-04-05T23:59:59.000Z

    An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas. 2 figs.

  2. Thermal insulated glazing unit

    SciTech Connect (OSTI)

    Selkowitz, Stephen E. (Piedmont, CA); Arasteh, Dariush K. (Oakland, CA); Hartmann, John L. (Seattle, WA)

    1991-01-01T23:59:59.000Z

    An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas.

  3. Contamination analysis unit

    DOE Patents [OSTI]

    Gregg, Hugh R. (Livermore, CA); Meltzer, Michael P. (Livermore, CA)

    1996-01-01T23:59:59.000Z

    The portable Contamination Analysis Unit (CAU) measures trace quantifies of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surface by measuring residual hazardous surface contamination, such as tritium and trace organics It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings.

  4. Contamination analysis unit

    DOE Patents [OSTI]

    Gregg, H.R.; Meltzer, M.P.

    1996-05-28T23:59:59.000Z

    The portable Contamination Analysis Unit (CAU) measures trace quantities of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surfaces by measuring residual hazardous surface contamination, such as tritium and trace organics. It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings. 1 fig.

  5. Energy Management in Olefins Units 

    E-Print Network [OSTI]

    Wells, T. A.

    1982-01-01T23:59:59.000Z

    to the point where waste heat from pyrolysis generates more than enough steam to power the olefins unit recovery section. Furthermore, incorporating gas turbine driven electrical generators or process compressors adds to the utility export potential of the unit...

  6. Energy Audits in Process Units

    E-Print Network [OSTI]

    Corwin, J. D.

    1980-01-01T23:59:59.000Z

    Emphasis is placed on practical considerations in the effective organization and execution of a successful in-house energy audit of a process unit, based upon experience gained in several such audits of Gulf Coast petrochemical units. Staffing...

  7. Energy Management in Olefins Units

    E-Print Network [OSTI]

    Wells, T. A.

    1982-01-01T23:59:59.000Z

    to the point where waste heat from pyrolysis generates more than enough steam to power the olefins unit recovery section. Furthermore, incorporating gas turbine driven electrical generators or process compressors adds to the utility export potential of the unit...

  8. PP-waves with Torsion - a Metric-affine Model for the Massless Neutrino

    E-Print Network [OSTI]

    Vedad Pasic; Elvis Barakovic

    2014-09-03T23:59:59.000Z

    In this paper we deal with quadratic metric-affine gravity, which we briefly introduce, explain and give historical and physical reasons for using this particular theory of gravity. Further, we introduce a generalisation of well known spacetimes, namely pp-waves. A classical pp-wave is a 4-dimensional Lorentzian spacetime, which admits a nonvanishing parallel spinor field; here the connection is assumed to be Levi-Civita. This definition was generalised in our previous work to metric compatible spacetimes with torsion and used to construct new explicit vacuum solutions of quadratic metric-affine gravity, namely generalised pp-waves of parallel Ricci curvature. The physical interpretation of these solutions we propose in this article is that they represent a conformally invariant metric-affine model for a massless elementary particle. We give a comparison with the classical model describing the interaction of gravitational and massless neutrino fields, namely Einstein-Weyl theory and construct pp-wave type solutions of this theory. We point out that generalised pp-waves of parallel Ricci curvature are very similar to pp-wave type solutions of the Einstein-Weyl model and therefore propose that our generalised pp-waves of parallel Ricci curvature represent a metric-affine model for the massless neutrino.

  9. DAYLIGHTING METRICS: IS THERE A RELATION BETWEEN USEFUL DAYLIGHT ILLUMINANCE AND DAYLIGHT GLARE PROBABILITY?

    E-Print Network [OSTI]

    J. Mardaljevic; M. Andersen; N. Roy; J. Christoffersen

    The establishment of climate-based daylight modelling within research and practice has led to a fundamental reassessment of both the basis and purpose of daylight metrics. Whilst there is no consensus yet on the precise nature of the metric(s) that should replace the daylight factor, it is generally agreed that these should be founded on climate-based daylight modelling (CBDM). In this paper we examine the relation between the predicted annual occurrence of glare and one of the candidate CBDM metrics that has been proposed, called useful daylight illuminance (UDI). The purpose is to determine if one or more of the UDI metrics (predicted for the horizontal workplane) could serve as a proxy for the probability of daylight glare (i.e. a measure of vertical illuminance received at the eye). For glare we use the simplified daylight glare probability model. The setting is a residential building which we use as a ‘virtual laboratory ’ in two design configurations, each evaluated under all 32 combinations of 8 European climates and 4 building orientations.

  10. Investigation of anisotropic metric in multidimensional space-time and generation of additional dimensions by scalar field

    E-Print Network [OSTI]

    Sergey V. Yakovlev

    2011-12-21T23:59:59.000Z

    Were investigated anisotropic metric of higher dimensional space-time with only cosmological term and scalar field. Showed, that presence of scalar field is equivalent to anisotropic metric in the multy dimensional space-time and proposed idea of dimensions generation by scalar field. Were solved Einstein's equations for higher dimensional space-time of Kazner's type and derived expressions for density of energy for scalar field, which generate additional dimensions, and proposed the procedure of renormalization of the metric.

  11. Decommissioning Unit Cost Data

    SciTech Connect (OSTI)

    Sanford, P. C.; Stevens, J. L.; Brandt, R.

    2002-02-26T23:59:59.000Z

    The Rocky Flats Closure Site (Site) is in the process of stabilizing residual nuclear materials, decommissioning nuclear facilities, and remediating environmental media. A number of contaminated facilities have been decommissioned, including one building, Building 779, that contained gloveboxes used for plutonium process development but did little actual plutonium processing. The actual costs incurred to decommission this facility formed much of the basis or standards used to estimate the decommissioning of the remaining plutonium-processing buildings. Recent decommissioning activities in the first actual production facility, Building 771, implemented a number of process and procedural improvements. These include methods for handling plutonium contaminated equipment, including size reduction, decontamination, and waste packaging, as well as management improvements to streamline planning and work control. These improvements resulted in a safer working environment and reduced project cost, as demonstrated in the overall project efficiency. The topic of this paper is the analysis of how this improved efficiency is reflected in recent unit costs for activities specific to the decommissioning of plutonium facilities. This analysis will allow the Site to quantify the impacts on future Rocky Flats decommissioning activities, and to develop data for planning and cost estimating the decommissioning of future facilities. The paper discusses the methods used to collect and arrange the project data from the individual work areas within Building 771. Regression and data correlation techniques were used to quantify values for different types of decommissioning activities. The discussion includes the approach to identify and allocate overall project support, waste management, and Site support costs based on the overall Site and project costs to provide a ''burdened'' unit cost. The paper ultimately provides a unit cost basis that can be used to support cost estimates for decommissioning at other facilities with similar equipment and labor costs. It also provides techniques for extracting information from limited data using extrapolation and interpolation techniques.

  12. FISHERY STATISTICS E UNITED STATES

    E-Print Network [OSTI]

    SH 11 .A443X FISH FISHERY STATISTICS E UNITED STATES ^ 1951 &ch 3. \\§^ ^/'· m:^ STATISTICAL DIGEST. Farley, Director Statistical Digest 30 FISHERY STATISTICS OF THE UNITED STATES 1951 BY A. W. ANDERSON;Fishery Statistics of the United States and Alaska are compiled and published annually to make available

  13. Entanglement Storage Units

    E-Print Network [OSTI]

    T. Caneva; T. Calarco; S. Montangero

    2012-09-27T23:59:59.000Z

    We introduce a protocol based on optimal control to drive many body quantum systems into long-lived entangled states, protected from decoherence by big energy gaps, without requiring any apriori knowledge of the system. With this approach it is possible to implement scalable entanglement-storage units. We test the protocol in the Lipkin-Meshkov-Glick model, a prototype many-body quantum system that describes different experimental setups, and in the ordered Ising chain, a model representing a possible implementation of a quantum bus.

  14. l UNITED STATES GOVERNMENT

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7 AugustAFRICAN3uj:'I,\ W CTheuse of_-_ ._UNITED

  15. Rooftop Unit Campaign

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin ofEnergy at Waste-to-Energy usingofRetrofittingFundA l i c eRooftop Unit Campaign

  16. Rooftop Unit Network Project

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin ofEnergy at Waste-to-Energy usingofRetrofittingFundA l i c eRooftop Unit

  17. New spin(7) holonomy metrics admitting G{sub 2} holonomy reductions and M-theory/type-IIA dualities

    SciTech Connect (OSTI)

    Salur, S. [Department of Mathematics University of Rochester, Rochester, New York, 14627 (United States); Santillan, O. [Hamilton Mathematics Institute and School of Mathematics Trinity College, Dublin 2 (Ireland)

    2009-04-15T23:59:59.000Z

    As is well known, when D6 branes wrap a special Lagrangian cycle on a noncompact Calabi-Yau threefold in such a way that the internal string frame metric is a Kaehler one there exists a dual description, which is given in terms of a purely geometrical 11-dimensional background with an internal metric of G{sub 2} holonomy. It is also known that when D6 branes wrap a coassociative cycle of a noncompact G{sub 2} manifold in the presence of a self-dual two-form strength the internal part of the string frame metric is conformal to the G{sub 2} metric and there exists a dual description, which is expressed in terms of a purely geometrical 11-dimensional background with an internal noncompact metric of spin(7) holonomy. In the present work it is shown that any G{sub 2} metric participating in the first of these dualities necessarily participates in one of the second type. Additionally, several explicit spin(7) holonomy metrics admitting a G{sub 2} holonomy reduction along one isometry are constructed. These metrics can be described as R fibrations over a 6-dimensional Kaehler metric, thus realizing the pattern spin(7){yields}G{sub 2}{yields}(Kahler) mentioned above. Several of these examples are further described as fibrations over the Eguchi-Hanson gravitational instanton and, to the best of our knowledge, have not been previously considered in the literature.

  18. AUSTRALIA BELGIUM CHINA FRANCE GERMANY HONG KONG SAR INDONESIA (ASSOCIATED OFFICE) ITALY JAPAN PAPUA NEW GUINEA SINGAPORE SPAIN SWEDEN UNITED ARAB EMIRATES UNITED KINGDOM UNITED STATES OF AMERICA

    E-Print Network [OSTI]

    Applebaum, David

    PAPUA NEW GUINEA SINGAPORE SPAIN SWEDEN UNITED ARAB EMIRATES UNITED KINGDOM UNITED STATES OF AMERICA

  19. Towards the Net-Zero Data Center: Development and Application of an Energy Reuse Metric

    SciTech Connect (OSTI)

    Patterson, M. K.; VanGeet, O.; Tschudi, W.; Azevedo, D.

    2011-01-01T23:59:59.000Z

    Data Centers are an ever increasing user of energy in our economy. While the performance per watt of our IT equipment continues to increase exponentially, this energy performance improvement is still outstripped by increasing demand. Because of this, the efficiency of data centers must continue to improve. Beyond just efficiency, many data centers now are working towards reuse of their waste energy in other areas in the data center or on the site or campus. How to account for this, through metrics and measurements, is the topic of this paper. The Energy Reuse Effectiveness metric or ERE is discussed; both the development and application of the metric are looked at in detail. The use of ERE in conjunction with PUE (Power Usage Effectiveness) is also considered.

  20. Linear metric and temperature fluctuations of a charged plasma in a primordial magnetic field

    E-Print Network [OSTI]

    Haba, Z

    2015-01-01T23:59:59.000Z

    We discuss tensor metric perturbations in a magnetic field around the homogeneous Juttner equilibrium of massless particles in an expanding universe. We solve the Liouville equation and derive the energy-momentum tensor up to linear terms in the metric and in the magnetic field.The term linear in the magnetic field is different from zero if the total charge of the primordial plasma is non-zero. We obtain an analytic formula for temperature fluctuations treating the tensor metric perturbations and the magnetic field as independent random variables. Assuming a cutoff on large momenta of the magnetic spectral function we show that the presence of the magnetic field can discriminate only low multipoles in the multipole expansion of temperature fluctuations. In such a case the term linear in the magnetic field can be more important than the quadratic one (corresponding to the fluctuations of the pure magnetic field).

  1. Graphene and the Zermelo Optical Metric of the BTZ Black Hole

    E-Print Network [OSTI]

    M. Cvetic; G. W. Gibbons

    2012-05-23T23:59:59.000Z

    It is well known that the low energy electron excitations of the curved graphene sheet $\\Sigma$ are solutions of the massless Dirac equation on a 2+1 dimensional ultra-static metric on ${\\Bbb R} \\times \\Sigma$. An externally applied electric field on the graphene sheet induces a gauge potential which could be mimicked by considering a stationary optical metric of the Zermelo form, which is conformal to the BTZ black hole when the sheet has a constant negative curvature. The Randers form of the metric can model a magnetic field, which is related by a boost to an electric one in the Zermelo frame. We also show that there is fundamental geometric obstacle to obtaining a model that extends all the way to the black hole horizon.

  2. Metric structure and dimensionality over a Borel set via uniform spaces

    E-Print Network [OSTI]

    W. M. Stuckey

    2001-09-25T23:59:59.000Z

    We introduce a pregeometry that provides a metric and dimensionality over a Borel set (Wheeler's "bucket of dust") without assuming probability amplitudes for adjacency. Rather, a non-trivial metric is produced over a Borel set X per a uniformity base generated via the discrete topological group structures over X. We show that entourage multiplication in this uniformity base mirrors the underlying group structure. One may exploit this fact to create an entourage sequence of maximal length whence a fine metric structure. Unlike the statistical approaches of graph theory, this method can suggest dimensionality over low-order sets. An example over Z2 x Z4 produces 3-dimensional polyhedra embedded in E4.

  3. Tidal deformation of a slowly rotating material body. I. External metric

    E-Print Network [OSTI]

    Landry, Philippe

    2015-01-01T23:59:59.000Z

    We construct the external metric of a slowly rotating, tidally deformed material body in general relativity. The tidal forces acting on the body are assumed to be weak and to vary slowly with time, and the metric is obtained as a perturbation of a background metric that describes the external geometry of an isolated, slowly rotating body. The tidal environment is generic and characterized by two symmetric-tracefree tidal moments E_{ab} and B_{ab}, and the body is characterized by its mass M, its radius R, and a dimensionless angular-momentum vector \\chi^a environment requires the introduction of four new quantities, which we designate as rotational-tidal Love numbers. All these Love numbers are gauge ...

  4. Circular geodesics and accretion disks in Janis-Newman-Winicour and Gamma metric

    E-Print Network [OSTI]

    Anirban N. Chowdhury; Mandar Patil; Daniele Malafarina; Pankaj S. Joshi

    2012-04-19T23:59:59.000Z

    We study here circular timelike geodesics in the Janis-Newman-Winicour and Gamma metric spacetimes which contain a strong curvature naked singularity and reduce to the Schwarzschild metric for a specific value of one of the parameters. We show that for both the metrics the range of allowed parameters can be divided into three regimes where structure of the circular geodesics is qualitatively different. It follows that the properties of the accretion disks around such naked singularities can be significantly different from those of disks around black holes. This adds to previous studies showing that if naked singularities exist in nature, their observational signature would be significantly different from that of the black hole.

  5. The Construction of Spinor Fields on Manifolds with Smooth Degenerate Metrics

    E-Print Network [OSTI]

    J Schray; T Dray; C A Manogue; R W Tucker; C Wang

    1996-05-17T23:59:59.000Z

    We examine some of the subtleties inherent in formulating a theory of spinors on a manifold with a smooth degenerate metric. We concentrate on the case where the metric is singular on a hypersurface that partitions the manifold into Lorentzian and Euclidean domains. We introduce the notion of a complex spinor fibration to make precise the meaning of continuity of a spinor field and give an expression for the components of a local spinor connection that is valid in the absence of a frame of local orthonormal vectors. These considerations enable one to construct a Dirac equation for the discussion of the behavior of spinors in the vicinity of the metric degeneracy. We conclude that the theory contains more freedom than the spacetime Dirac theory and we discuss some of the implications of this for the continuity of conserved currents.

  6. Non-linear metric perturbations and production of primordial black holes

    E-Print Network [OSTI]

    P. Ivanov

    1997-08-25T23:59:59.000Z

    We consider the simple inflationary model with peculiarity in the form of "plateau" in the inflaton potential. We use the formalism of coarse-grained field to describe the production of metric perturbations $h$ of an arbitrary amplitude and obtain non-Gaussian probability function for such metric perturbations. We associate the spatial regions having large perturbations $h\\sim 1$ with the regions going to primordial black holes after inflation. We show that in our model the non-linear effects can lead to overproduction of the primordial black holes.

  7. Non-Relativistic Approximation of the Dirac Equation for Slow Fermions in Static Metric Spacetimes

    E-Print Network [OSTI]

    A. N. Ivanov; M. Pitschmann

    2014-06-10T23:59:59.000Z

    We analyse the non-relativistic approximation of the Dirac equation for slow fermions moving in spacetimes with a static metric, caused by the weak gravitational field of the Earth and a chameleon field, and derive the most general effective gravitational potential, induced by a static metric of spacetime. The derivation of the non-relativistic Hamilton operator of the Dirac equation is carried out by using a standard Foldy-Wouthuysen (SFW) transformation. We discuss the chameleon field as source of a torsion field and torsion-matter interactions.

  8. Effective gravitational mass of the Ayón-Beato and García metric

    E-Print Network [OSTI]

    A. K. Sinha; G. K. Pandey; A. K. Bhaskar; B. C. Rai; A. K. Jha; S. Kumar; S. S. Xulu

    2015-01-03T23:59:59.000Z

    In this paper, we calculate the effective gravitational mass of Ay\\'{o}n-Beato and Garc\\'{\\i}a regular (non-singular) static spherically symmetric asymptotically Minkowskian metric that is a solution to Einstein's equations coupled with a nonlinear electromagnetic field. The effective gravitational mass is negative, zero, or positive that depends on the ratio of magnitude of electric charge to the ADM mass and the ratio of the radial distance to the ADM mass. As expected, at large value of radial distance, our result gives effective gravitational mass of the Reissner-Nordstr\\"om metric.

  9. 2013 Reporting Unit Codes | Department of Energy

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

    2013 Reporting Unit Codes 2013 Reporting Unit Codes CFC Reporting Unit Codes 2013.pdf More Documents & Publications EA-0372: Final Environmental Assessment Alignment: Achieving...

  10. Accelerating CHP Deployment, United States Energy Association...

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

    Accelerating CHP Deployment, United States Energy Association (USEA), August 2011 Accelerating CHP Deployment, United States Energy Association (USEA), August 2011 The United...

  11. UNIT NUMBER SWMU 175 UNIT NAME: Concrete Rubble Pile (28...

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

    75 UNIT NAME: Concrete Rubble Pile (28) REGULATORY STATUS: AOC LOCATION: Outside Security Fence, East of C-360 Building in KPDES Outfall Ditch 002. APPROXIMATE DIMENSIONS: 400 ft...

  12. No-reference image quality assessment and blind deblurring with sharpness metrics exploiting Fourier phase information

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , total variation, Fourier transform, random phase noise, no-reference image quality assessment, imageNo-reference image quality assessment and blind deblurring with sharpness metrics exploiting information of an image to achieve quality assessment, edge detection, and, more recently, blind deblurring

  13. Isospectral Metrics on Classical Compact Simple Lie Groups Submitted to the Faculty

    E-Print Network [OSTI]

    Proctor, Emily

    Isospectral Metrics on Classical Compact Simple Lie Groups A Thesis Submitted to the Faculty;Acknowledgements This thesis is the product of support from a number of people. First and foremost, it has been. I give thanks to Peter Doyle for leading me out of a blind alley, to Dorothee Schueth for helping me

  14. Transmission channel Sensitive Multi-Metric Routing for Wireless Sensor Networks

    E-Print Network [OSTI]

    Beigl, Michael

    Transmission channel Sensitive Multi-Metric Routing for Wireless Sensor Networks Behnam Banitalebi and provide more flexibility. Depending on the network objectives and characteristics, various parameters like realistic hop cost model including transmission loss, and energy storage and relay traffic of the nodes. Two

  15. Applying Scaled Vegetation Greenness Metrics to Constrain Simulated Transpiration Anomalies: A Study over Australia*

    E-Print Network [OSTI]

    Evans, Jason

    , Climate Change Research Centre, Level 4 Mathews Building, University of New South Wales, Sydney NSW 2052: A Study over Australia* MARK DECKER, ANDY J. PITMAN, AND JASON EVANS Climate Change Research CentreApplying Scaled Vegetation Greenness Metrics to Constrain Simulated Transpiration Anomalies

  16. Parallel Anisotropic Adaptation for Metric and Direct Error Control Michael A. Parka

    E-Print Network [OSTI]

    Peraire, Jaime

    .g., turbulence model distance function calculation, thin- layer viscous approximation, level of artificial (3D) high-lift computations. The high degree of manual intervention required in these cases prohibits interpolant of this scalar. Difficulties arise in the extension of metric-based approaches to systems

  17. COMPRESSIVE VIDEO CLASSIFICATION IN A LOW-DIMENSIONAL MANIFOLD WITH LEARNED DISTANCE METRIC

    E-Print Network [OSTI]

    Tsakalides, Panagiotis

    COMPRESSIVE VIDEO CLASSIFICATION IN A LOW-DIMENSIONAL MANIFOLD WITH LEARNED DISTANCE METRIC George Tzagkarakis1 , Grigorios Tsagkatakis2 , Jean-Luc Starck1 and Panagiotis Tsakalides2 1 Commissariat `a l'´Energie of video classification based on a set of com- pressed features, without the need of accessing the original

  18. Erice'2007 Defeng Sun 1 The Role of Metric Projectors in

    E-Print Network [OSTI]

    Sun, Defeng

    Erice'2007 Defeng Sun 1 ' & $ % The Role of Metric Projectors in Nonlinear Conic Optimization Defeng Sun Department of Mathematics National University of Singapore Republic of Singapore August 1, 2007 #12;Erice'2007 Defeng Sun 2 ' & $ % Let us consider the matrix correlation problem min 1 2 X - G 2

  19. On the use of software quality metrics to im-prove physical properties of embedded systems

    E-Print Network [OSTI]

    Wagner, Flávio Rech

    , such as perfor- #12;2 mance, memory, energy, power, size, and weight, guided by design constraints. Other design strat- egy regarding low level, physical characteristics like performance, energy, and memory important and related metrics are reuse, time-to-market, and price. Although many methodologies extract

  20. Metric problems in sub-Riemannian geometry Gromov's dimension approach to the Holder equivalence problem

    E-Print Network [OSTI]

    Pansu, Pierre

    Metric problems in sub-Riemannian geometry Gromov's dimension approach to the H¨older equivalence problem Gromov's cochain approach to the H¨older equivalence problem Rumin's complex Quasisymmetric H¨older-Lipschitz equivalence problem Differential forms and the H¨older equivalence problem P. Pansu September 1st, 2014 P

  1. Finite propagation speed for solutions of the wave equation on metric graphs

    E-Print Network [OSTI]

    Vadim Kostrykin; Jürgen Potthoff; Robert Schrader

    2011-06-04T23:59:59.000Z

    We provide a class of self-adjoint Laplace operators on metric graphs with the property that the solutions of the associated wave equation satisfy the finite propagation speed property. The proof uses energy methods, which are adaptions of corresponding methods for smooth manifolds.

  2. Acceptability of Four Transformer Top-Oil Thermal Models: Pt. 2: Comparing Metrics

    E-Print Network [OSTI]

    1 Acceptability of Four Transformer Top-Oil Thermal Models: Pt. 2: Comparing Metrics Lida Jauregui transformer top-oil thermal models are examined vis-à-vis training with measured data. Acceptability is unacceptable for model identification purposes. The linear top-oil model is acceptable for FOFA transformers

  3. A numeric solution for metric-affine gravity and Einstein's gravitational theory with Proca matter

    E-Print Network [OSTI]

    Marc Toussaint

    1999-10-12T23:59:59.000Z

    A special case of metric-affine gauge theory of gravity (MAG) is equivalent to general relativity with Proca matter as source. We study in detail a corresponding numeric solution of the Reissner-Nordstr"om type. It is static, spherically symmetric, and of electric type. In particular, this solution has no horizon, so it has a naked singularity as its origin.

  4. On the solutions of the Cartan equation in Metric Affine Gravity

    E-Print Network [OSTI]

    Roberto Mignani; Roberto Scipioni

    2000-09-28T23:59:59.000Z

    In the Tucker-Wang approach to Metric Affine gravity we review some particular solutions of the Cartan equation for the non-riemannian part of the connection. As application we show how a quite general non Riemannian model gives a Proca type equation for the trace of the nonmetricity 1-forms Q.

  5. Incorporating Drivability Metrics into Optimal Energy Management Strategies for Hybrid Vehicles

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    Incorporating Drivability Metrics into Optimal Energy Management Strategies for Hybrid Vehicles fuel economy performance is highly sensitive to the energy management strategy used to select among are characterized by multiple energy sources; the control strategy to select among these multiple energy sources

  6. Evaluation of transient agility metrics through unmanned simulation of the X-31 post-stall aircraft

    E-Print Network [OSTI]

    Fischer, Shiloh Douglas

    1996-01-01T23:59:59.000Z

    measure, the pitch impulse metric, is developed and simulated on the X-3 IA to describe an aircraft's balance of maximum load factor generation and maintenance during a pitch maneuver. High and low AOA lateral agility tests also show improved roll...

  7. A source of the C-metric with perfect translational inertial dragging

    E-Print Network [OSTI]

    Brynjar Arnfinnsson; Øyvind Grøn

    2014-09-21T23:59:59.000Z

    A new source of the C-metric is described using Israel's formalism. This source is a singular accelerated shell. By construction, perfect inertial dragging is realized inside the shell. The equation of state and energy conditions for the shell are discussed.

  8. Geometrodynamics of a thin shell in the Reissner-Nordström metric

    SciTech Connect (OSTI)

    Chernov, S. V., E-mail: chernov@lpi.ru [Russian Academy of Sciences, Astrospace Center, Lebedev Physical Institute (Russian Federation)

    2013-11-15T23:59:59.000Z

    The geometrodynamics of a thin, dust, electrically neutral shell in the metric of a charged Reissner-Nordström black hole is considered. The Arnowitt-Deser-Misner formalism is used to construct the thin-shell Hamiltonian. The wave equation is derived. The wave equation is shown to be a second-order homogeneous difference equation. Exact analytical solutions have been found.

  9. A Non-Riemannian Metric on Space-Time Emergent From Scalar Quantum Field Theory

    E-Print Network [OSTI]

    Kar, Arnab

    2012-01-01T23:59:59.000Z

    We show that the standard deviation \\sigma(x,x') = \\sqrt{} of a scalar quantum field theory is a metric (i.e., a symmetric positive function satisfying the triangle inequality) on space-time (with imaginary time). It is very different from the Euclidean metric |x-x'|: for four dimensional free scalar field theory, \\sigma(x,x') \\to \\frac{\\sigma_{4}}{a^{2}} -\\frac{\\sigma_{4}'}{|x-x'|^{2}} + \\mathrm{O}(|x-x'|^{-3}), as |x-x'|\\to\\infty. According to \\sigma, space-time has a finite diameter \\frac{\\sigma_{4}}{a^{2}} which is not universal (i.e., depends on the UV cut-off a and the regularization method used). The Lipschitz equivalence class of the metric is independent of the cut-off. \\sigma(x,x') is not the length of the geodesic in any Riemannian metric, as it does not have the intermediate point property: for a pair (x,x') there is in general no point x" such that \\sigma(x,x')=\\sigma(x,x")+\\sigma(x",x'). Nevertheless, it is possible to embed space-time in a higher dimensional space of negative curvature so that ...

  10. Comparison of noise-normalized minimum norm estimates for MEG analysis using multiple resolution metrics

    E-Print Network [OSTI]

    Henson, Rik

    LORETA inverse operators, on the metrics dipole localization error (DLE), spatial dispersion (SD) and overall, including individual noise covariance matrices and head geometries. We confirmed that for PSFs DLE improved procedures are used as "spatial filters." While low DLE is advantageous for the localization of a single

  11. P16: A distortion-weighted glimpse-based intelligibility metric for modified and synthetic speech

    E-Print Network [OSTI]

    Edinburgh, University of

    for speech enhancement in known noise conditions," in Proc. Interspeech, pp. 1636-1639. M. Cooke, C. Mayo, CP16: A distortion-weighted glimpse-based intelligibility metric for modified and synthetic speech Yan Tang1 and Martin Cooke2,1 Cassia Valentini-Botinhao3 1 Language and Speech Laboratory, University

  12. Coverage Metrics for Verification of Concurrent SystemC Designs Using Mutation Testing

    E-Print Network [OSTI]

    Sen, Alper

    Coverage Metrics for Verification of Concurrent SystemC Designs Using Mutation Testing Alper Sen Department of Computer Engineering Bogazici University Istanbul, Turkey Email: alper.sen@boun.edu.tr Magdy S is not adequate for a concurrent program. A major problem with design verification of concurrent systems

  13. Learning feature weights for K-Means clustering using the Minkowski metric

    E-Print Network [OSTI]

    Amorim, Renato Cordeiro de

    Learning feature weights for K-Means clustering using the Minkowski metric Renato Cordeiro de or award at this or any other academic institution. Signed: Renato Cordeiro de Amorim #12;iii Abstract K-Means are taken from a database just because they are available. Another issue of our concern is that K-Means

  14. A Modified K-Means Clustering with a Density-Sensitive Distance Metric

    E-Print Network [OSTI]

    Bo, Liefeng

    A Modified K-Means Clustering with a Density-Sensitive Distance Metric Ling Wang, Liefeng Bo {wliiip, blf0218}@163.com, lchjiao@mail.xidian.edu.cn Abstract. The K-Means clustering is by far the most characteristic of data clus- tering. By using this dissimilarity measure, a density-sensitive K-Means clustering

  15. KOHONEN NETWORKS WITH GRAPH-BASED AUGMENTED METRICS Peter Andras and Olusola Idowu

    E-Print Network [OSTI]

    Andras, Peter

    include: bisecting k-means clustering [2], principal component analysis [3], independent component that is based on the comparison of word consecutiveness graphs of documents. We show that using the proposed distance metric comparison of word frequency vectors. Our results indicate that word consecutiveness graph

  16. An Attack Surface Metric Pratyusa K. Manadhata and Jeannette M. Wing

    E-Print Network [OSTI]

    Wing, Jeannette M.

    An Attack Surface Metric Pratyusa K. Manadhata and Jeannette M. Wing Carnegie Mellon University's security? We propose to use the measure of a system's attack surface as an indication of the system, prior work has shown that a system's attack surface measurement serves as a reliable proxy for security

  17. Energetically Optimal Travel across Terrain: Visualizations and a New Metric of Geographic Distance with Archaeological Applications

    E-Print Network [OSTI]

    Wood, Zoë J.

    Energetically Optimal Travel across Terrain: Visualizations and a New Metric of Geographic Distance the energetically least cost path is shown in blue. This visualization shows how least cost paths often follow propose new methods for terrain visualization and analysis based on measuring paths of least caloric

  18. LFTI: A New Performance Metric for Assessing Interconnect Designs for Extreme-Scale HPC Systems

    E-Print Network [OSTI]

    Pakin, Scott

    , New Mexico Email: {mlang,pakin}@lanl.gov Abstract--Traditionally, interconnect performance is eitherLFTI: A New Performance Metric for Assessing Interconnect Designs for Extreme-Scale HPC Systems Xin a good performance overview for extreme-scale interconnects. The topological pa- rameters

  19. Perception, 1990, volume 19, pages 79-101 The standard deviation of luminance as a metric

    E-Print Network [OSTI]

    Kingdom, Frederick A. A.

    Perception, 1990, volume 19, pages 79-101 The standard deviation of luminance as a metric with periodic luminance profiles, such as gratings, but is not suitable for images consisting of isolated the standard deviation (SD) of the luminances (equivalent to the root mean square, RMS, of the amplitudes) has

  20. A Power Metric for Mobile Systems Thomas L. Martin 1 , Daniel P. Siewiorek

    E-Print Network [OSTI]

    Martin, Tom

    constraints. Historically, the major constraints have been performance and cost. In addition, mobile computingA Power Metric for Mobile Systems Thomas L. Martin 1 , Daniel P. Siewiorek Engineering Design as the details of the battery construction. Depending on the battery life of a mobile system, there are other

  1. A NEW TEST METRIC AND A NEW SCAN ARCHITECTURE FOR EFFICIENT VLSI TESTING

    E-Print Network [OSTI]

    Stanford University

    A NEW TEST METRIC AND A NEW SCAN ARCHITECTURE FOR EFFICIENT VLSI TESTING A DISSERTATION SUBMITTED. To overcome the difficulty and cost of VLSI testing, we need to search for better testing techniques. Chip testing can be classified into two categories: production testing and characterization testing

  2. On Performance Metrics for Guaranteed QoS in Industrial Mobile Wireless Sensor Networks

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    1 On Performance Metrics for Guaranteed QoS in Industrial Mobile Wireless Sensor Networks Teja collected over the network. As the industry is adapting these new-generation wireless sensors technical innovations, e.g., widespread use of wireless sensors forecasted to improve manufacturing

  3. How Does Your Data Center Measure Up? Energy Efficiency Metrics and Benchmarks for Data

    E-Print Network [OSTI]

    by the New York State Energy Research and Development Authority (NYSERDA) and the Assistant Secretary Energy Commission, Pacific Gas and Electric Co., the U.S. Department of Energy and the New York StateHow Does Your Data Center Measure Up? Energy Efficiency Metrics and Benchmarks for Data Center

  4. Lakes as sensors in the landscape: Optical metrics as scalable sentinel responses to climate change

    E-Print Network [OSTI]

    Williamson, Craig E.

    Lakes as sensors in the landscape: Optical metrics as scalable sentinel responses to climate change, Edgewater, Maryland Abstract As the lowest point in the surrounding landscape, lakes act as sensors. Here a novel suite of climate forcing optical indices (CFOI) from lakes across North America is found

  5. Incorporating Drivability Metrics into Optimal Energy Management Strategies for Hybrid Vehicles Part 1: Model, Methods, and

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    Incorporating Drivability Metrics into Optimal Energy Management Strategies for Hybrid Vehicles-parallel configuration considered here. Hybrid vehicles are characterized by multiple energy sources; the strategy Gillespie, Jeffrey A. Cook, and J.W. Grizzle Abstract--Hybrid Vehicle fuel economy performance is highly

  6. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    180 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two firms with operations in Nevada and Oregon% of the titanium metal used was in aerospace applications. The remaining 40% was used in the armor, chemical

  7. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    172 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada and Utah. Ingot was produced. In 2011, an estimated 66% of the titanium metal was used in aerospace applications. The remaining 34

  8. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    180 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two firms with operations in Nevada and Oregon produced titanium forgings, mill products, and castings. In 1996, an estimated 65% of the titanium metal

  9. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    182 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two firms with operations in Nevada and Oregon% of the titanium metal used was in aerospace applications. The remaining 35% was used in the chemical process

  10. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    180 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two firms with operations in Nevada and Oregon produced titanium forgings, mill products, and castings. In 1997, an estimated 65% of the titanium metal

  11. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    180 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two operations in Nevada and Utah. Ingot was made forged components, mill products, and castings. In 2005, an estimated 65% of the titanium metal was used

  12. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    176 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two firms with operations in Nevada and Oregon% of the titanium metal used was in aerospace applications. The remaining 40% was used in armor, chemical processing

  13. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    178 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two operations in Nevada and Utah. Ingot was made forged components, mill products, and castings. In 2004, an estimated 60% of the titanium metal was used

  14. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    178 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two firms with operations in Nevada and Utah. Ingot to produce forged components, mill products, and castings. In 2001, an estimated 65% of the titanium metal

  15. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    176 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada, Oregon, and Utah. Ingot and castings. In 2006, an estimated 72% of the titanium metal was used in aerospace applications. The remaining

  16. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    172 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada and Utah. Ingot was produced. In 2012, an estimated 72% of the titanium metal was used in aerospace applications. The remaining 28

  17. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    170 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada and Utah. Titanium ingot and castings. In 2013, an estimated 73% of the titanium metal was used in aerospace applications. The remaining

  18. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    180 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada, Oregon, and Utah. Ingot and castings. In 2007, an estimated 76% of the titanium metal was used in aerospace applications. The remaining

  19. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless noted)

    E-Print Network [OSTI]

    178 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless noted) Domestic Production and Use: Titanium sponge metal was produced by two firms in Nevada and Oregon. Ingot was made by the two sponge producers and by nine other firms in seven States. About 30 companies produced titanium forgings, mill

  20. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    180 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two operations in Nevada and Utah. Ingot was made forged components, mill products, and castings. In 2002, an estimated 65% of the titanium metal used

  1. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    172 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by four operations in Nevada, Oregon, and Utah. Ingot and castings. In 2010, an estimated 75% of the titanium metal was used in aerospace applications. The remaining

  2. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    176 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada, Oregon, and Utah. Ingot and castings. In 2008, an estimated 79% of the titanium metal was used in aerospace applications. The remaining

  3. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted)

    E-Print Network [OSTI]

    178 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons, unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by two operations in Nevada and Utah. Ingot was made forged components, mill products, and castings. In 2003, an estimated 55% of the titanium metal used

  4. TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted)

    E-Print Network [OSTI]

    174 TITANIUM AND TITANIUM DIOXIDE1 (Data in metric tons unless otherwise noted) Domestic Production and Use: Titanium sponge metal was produced by three operations in Nevada, Oregon, and Utah. A fourth, an estimated 76% of the titanium metal was used in aerospace applications. The remaining 24% was used in armor

  5. Nonholonomic Ricci Flows and Running Cosmological Constant: 3D Taub-NUT Metrics

    E-Print Network [OSTI]

    Sergiu I. Vacaru; Mihai Visinescu

    2007-10-11T23:59:59.000Z

    The common assertion that the Ricci flows of Einstein spaces with cosmological constant can be modelled by certain classes of nonholonomic frame, metric and linear connection deformations resulting in nonhomogeneous Einstein spaces is examined in the light of the role played by topological three dimensional (3D) Taub-NUT-AdS/dS spacetimes.

  6. High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization

    E-Print Network [OSTI]

    Arslan, Tughrul

    High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization J. H.Erdogan@ee.ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk Abstract The authors present a turbo soft-in soft-out (SISO) decoder based. The turbo decoder with the proposed technique has been synthesized to evaluate its power consumption

  7. SPE SPE-121395-PP A Mutual Information-Based Metric for Identification of Nonlinear Injector

    E-Print Network [OSTI]

    Shahabi, Cyrus

    of waterfloods in heterogeneous reservoirs. The main contribution is the development of a process and metric management of complex waterflood. 1. Introduction In petroleum reservoirs, enabling engineers to model Producer Relationships in Waterfloods A.Khodaei, Hyokyeong Lee, F.Banaei-Kashani, C.Shahabi and I. Ershaghi

  8. Quality of the Target Area for Metrics with Different Nonlinearities in a Mesoscale Convective System

    E-Print Network [OSTI]

    Meng, Zhiyong

    , on the forecast error of strongly nonlinear rainfall and weakly nonlinear total energy around the initial vortex of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China (Manuscript received 31 area for forecast metrics with different nonlinearities in a mesoscale convective vortex

  9. Metrics for Measuring Progress under the Hawai`i Clean Energy Initiative

    E-Print Network [OSTI]

    ENERGY INSTITUTE School of Ocean & Earth Science & Technology ­ University of Hawai`i at Manoa #12 by Hawai`i Natural Energy Institute School of Ocean and Earth Science and Technology University of HawaiMetrics for Measuring Progress under the Hawai`i Clean Energy Initiative: Hawai`i Clean Energy

  10. Multiple-Objective Metric for Placing Multiple Base Stations in Wireless Sensor Networks

    E-Print Network [OSTI]

    Liblit, Ben

    positioning in sensor networks based on directional antennas [6], but it addresses secure positioningMultiple-Objective Metric for Placing Multiple Base Stations in Wireless Sensor Networks Soo Kim in wireless sensor networks. First, the ratio of sensor nodes which can communicate with a base station via

  11. Integration in the GHP formalism III: Finding all conformally flat radiation metrics as an example of an `optimal situation'

    E-Print Network [OSTI]

    S. Brian Edgar; Garry Ludwig

    1997-01-24T23:59:59.000Z

    Held has proposed an integration procedure within the GHP formalism built around four real, functionally independent, zero-weighted scalars. He suggests that such a procedure would be particularly simple for the `optimal situation', when the formalism directly supplies the full quota of four scalars of this type; a spacetime without any Killing vectors would be such a situation. Wils has recently obtained a metric which he claims is the only conformally flat, pure radiation metric which is not a plane wave; this metric has been shown by Koutras to admit no Killing vectors, in general. Therefore, as a simple illustration of the GHP integration procedure, we obtain systematically the complete class of conformally flat, pure radiation metrics. Our result shows that the conformally flat, pure radiation metrics, which are not plane waves, are a larger class than Wils has obtained.

  12. Development of new VOC exposure metrics and their relationship to ''Sick Building Syndrome'' symptoms

    SciTech Connect (OSTI)

    Ten Brinke, JoAnn [Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab., Berkeley, CA (United States)

    1995-08-01T23:59:59.000Z

    Volatile organic compounds (VOCs) are suspected to contribute significantly to ''Sick Building Syndrome'' (SBS), a complex of subchronic symptoms that occurs during and in general decreases away from occupancy of the building in question. A new approach takes into account individual VOC potencies, as well as the highly correlated nature of the complex VOC mixtures found indoors. The new VOC metrics are statistically significant predictors of symptom outcomes from the California Healthy Buildings Study data. Multivariate logistic regression analyses were used to test the hypothesis that a summary measure of the VOC mixture, other risk factors, and covariates for each worker will lead to better prediction of symptom outcome. VOC metrics based on animal irritancy measures and principal component analysis had the most influence in the prediction of eye, dermal, and nasal symptoms. After adjustment, a water-based paints and solvents source was found to be associated with dermal and eye irritation. The more typical VOC exposure metrics used in prior analyses were not useful in symptom prediction in the adjusted model (total VOC (TVOC), or sum of individually identified VOCs ({Sigma}VOC{sub i})). Also not useful were three other VOC metrics that took into account potency, but did not adjust for the highly correlated nature of the data set, or the presence of VOCs that were not measured. High TVOC values (2--7 mg m{sup {minus}3}) due to the presence of liquid-process photocopiers observed in several study spaces significantly influenced symptoms. Analyses without the high TVOC values reduced, but did not eliminate the ability of the VOC exposure metric based on irritancy and principal component analysis to explain symptom outcome.

  13. Rotating Black Hole Solutions with Axion Dilaton and Two Vector Fields and Solutions with Metric and Fields of the Same Form

    E-Print Network [OSTI]

    E. Kyriakopoulos

    2009-05-15T23:59:59.000Z

    We present two rotating black hole solutions with axion $\\xi$, dilaton $\\phi$ and two U(1) vector fields. By applying the "Newman-Janis trick" to a metric with 3 arbitrary parameters we find a rotating metric $g_{\\mu\

  14. Multi-unit operations considerations.

    SciTech Connect (OSTI)

    Gilmore, Walter E. (Los Alamos National Laboratory, Los Alamos, NM); Bennett, Thomas C. (Lawrence Livermore National Laboratory, Albuquerque, NM); Brannon, Nathan Gregory

    2005-09-01T23:59:59.000Z

    Several nuclear weapons programs have or are pursuing the implementation of multi-unit operations for tasks such as disassembly and inspection, and rebuild. A multi-unit operation is interpreted to mean the execution of nuclear explosive operating procedures in a single facility by two separate teams of technicians. The institution of a multi-unit operations program requires careful consideration of the tools, resources, and environment provided to the technicians carrying out the work. Therefore, a systematic approach is necessary to produce safe, secure, and reliable processes. In order to facilitate development of a more comprehensive multi-unit operations program, the current work details categorized issues that should be addressed prior to the implementation of multi-unit operations in a given weapons program. The issues have been organized into the following categories: local organizational conditions, work process flow/material handling/workplace configuration, ambient environmental conditions, documented safety analysis, and training.

  15. Analysis of the quantum-mechanical equivalence of the metrics of a centrally symmetric uncharged gravitational field

    E-Print Network [OSTI]

    M. V. Gorbatenko; V. P. Neznamov

    2014-11-08T23:59:59.000Z

    In the paper we analyze the quantum-mechanical equivalence of the metrics of a centrally symmetric uncharged gravitational field. We consider the Schwarzschild metrics in the spherical, isotropic and harmonic coordinates, and the Eddington-Finkelstein, Painleve-Gullstrand, Lemaitre-Finkelstein, Kruskal metrics. The scope of the analysis includes domains of the wave functions of Dirac's equation, hermiticity of Hamiltonians, and the possibility of existence of stationary bound states of spin-half particles. The constraint on the domain of the wave functions of the Hamiltonian in a Schwarzschild field in spherical coordinates (r > r_{0}) resulting from the fulfillment of Hilbert's condition g_{00} > 0 also holds in other coordinates for all the metrics considered. The self-adjoint Hamiltonians for the Schwarzschild metrics in the spherical, isotropic and harmonic coordinates and also for the Eddington-Finkelstein and Painleve-Gullstrand metrics are Hermitian, and for them the existence of stationary bound states of spin-half particles is possible. The self-adjoint Hamiltonians for non-stationary Lemaitre-Finkelstein and Kruskal metrics have the explicit dependence on the temporal coordinates and stationary bound states of spin-half particles cannot be defined for these Hamiltonians. The results of this study can be useful when addressing the issues related to the evolution of the universe and interaction of collapsars with surrounding matter.

  16. Advanced Unit Commitment Strategies in the United States Eastern Interconnection

    SciTech Connect (OSTI)

    Meibom, P.; Larsen, H. V.; Barth, R.; Brand, H.; Tuohy, A.; Ela, E.

    2011-08-01T23:59:59.000Z

    This project sought to evaluate the impacts of high wind penetrations on the U.S. Eastern Interconnection and analyze how different unit commitment strategies may affect these impacts.

  17. Hawking temperature for a global monopole metric in the context of k- essence and emergent gravity

    E-Print Network [OSTI]

    Debashis Gangopadhyay; Goutam Manna

    2011-08-04T23:59:59.000Z

    The Hawking temperature for the Barriola-Vilenkin global monopole metric is shown to be $T_{\\mathrm BV}= {\\hbar (1-\\alpha) ^{2}\\over8\\pi GM k_{\\mathrm B}}$, where $\\alpha$ is the global monopole charge,$M$ the mass of the black hole, $k_{\\mathrm B}$ is the Boltzmann constant and speed of light $c=1$. We then show that a similar metric can also be obtained for certain $k-$ essence field configurations in an emergent gravity situation. Therefore, in the context of Belgiorno {\\it et al's} recent demonstration of spontaneous emission of photons in a gravitational analogue experiment, any future observation of $T_{\\mathrm BV}$ need not necessarily imply the existence of global monopoles. An alternative implication might as well be a very indirect signature of dark energy in an emergent gravity scenario. This should lead to effects that may be detectable in refined and modified versions of Belgiorno {\\it et al's} experiment.

  18. Matter as Curvature and Torsion of General Metric-Affine Space

    E-Print Network [OSTI]

    Alex Karpelson

    2014-06-25T23:59:59.000Z

    General equations of the unified geometric field theory, based on the curved and torsional space-time, are presented. They contain only geometrical parameters of the metric-affine space G4 and describe distribution and motion of the matter, which represents curvature and torsion of the space-time. Equations describing spherically symmetric non-stationary and stationary fields are derived for various cases: for metrics with singularities and without them, for gravitational field in vacuum and for the massless fluid with spin. Equations describing uniform isotropic field are derived for the closed and open isotropic models of universe for the gravitational field in vacuum and for the massless fluid with spin; some of these equations and their solutions coincide with the respective equations and their solutions in general relativity for the space filled with the dust-like matter.

  19. Stability and decay-rates for the five-dimensional Schwarzschild metric under biaxial perturbations

    E-Print Network [OSTI]

    G. Holzegel

    2008-08-24T23:59:59.000Z

    In this paper we prove the non-linear asymptotic stability of the five-dimensional Schwarzschild metric under biaxial vacuum perturbations. This is the statement that the evolution of (SU(2) x U(1))-symmetric vacuum perturbations of initial data for the five-dimensional Schwarzschild metric finally converges in a suitable sense to a member of the Schwarzschild family. It constitutes the first result proving the existence of non-stationary vacuum black holes arising from asymptotically flat initial data dynamically approaching a stationary solution. In fact, we show quantitative rates of approach. The proof relies on vectorfield multiplier estimates, which are used in conjunction with a bootstrap argument to establish polynomial decay rates for the radiation on the perturbed spacetime. Despite being applied here in a five-dimensional context, the techniques are quite robust and may admit applications to various four-dimensional stability problems.

  20. The International Safeguards Technology Base: How is the Patient Doing? An Exploration of Effective Metrics

    SciTech Connect (OSTI)

    Schanfein, Mark J; Gouveia, Fernando S

    2010-07-01T23:59:59.000Z

    The term “Technology Base” is commonly used but what does it mean? Is there a common understanding of the components that comprise a technology base? Does a formal process exist to assess the health of a given technology base? These are important questions the relevance of which is even more pressing given the USDOE/NNSA initiatives to strengthen the safeguards technology base through investments in research & development and human capital development. Accordingly, the authors will establish a high-level framework to define and understand what comprises a technology base. Potential goal-driven metrics to assess the health of a technology base will also be explored, such as linear demographics and resource availability, in the hope that they can be used to better understand and improve the health of the U.S. safeguards technology base. Finally, through the identification of such metrics, the authors will offer suggestions and highlight choices for addressing potential shortfalls.

  1. Lifshitz field theories, Snyder noncomutative space-time and momentum dependent metric

    E-Print Network [OSTI]

    Romero, Juan M

    2015-01-01T23:59:59.000Z

    In this work, we propose three different modified relativistic particles. In the first case, we propose a particle with metrics depending on the momenta and we show that the quantum version of these systems includes different field theories, as anisotropic field theories. As a second case we propose a particle that implies a modified symplectic structure and we show that the quantum version of this system gives different noncommutative space-times, for example the Snyder space-time. In the third case, we combine both structures before mentioned, namely noncommutative space-times and momentum dependent metrics. In this last case, we show that anisotropic field theories can be seen as a limit of no commutative field theory.

  2. Radiation in Yang-Mills formulation of gravity and a generalized pp-wave metric

    E-Print Network [OSTI]

    S. Baskal

    1997-12-23T23:59:59.000Z

    The variational methods implemented on a quadratic Yang-Mills type Lagrangian yield two sets of equations interpreted as the field equations and the energy-momentum tensor for the gravitational field. A covariant condition is imposed on the energy-momentum tensor to represent the radiation field. A generalized pp-wave metric is found to simultaneously satisfy both the field equations and the radiation condition. The result is compared with that of Lichn\\'{e}rowicz.

  3. Energy-momentum distribution of a general plane symmetric spacetime in metric f(R) gravity

    E-Print Network [OSTI]

    Morteza Yavari

    2014-06-13T23:59:59.000Z

    In this paper, the exact vacuum solution of a general plane symmetric spacetime is investigated in metric f(R) gravity with the assumption of constant Ricci scalar. For this solution, we have studied the generalized Landau-Lifshitz energy-momentum complex in this theory to determine the energy distribution expressions for some specific f(R) models. Also, we show that these models satisfy the constant curvature condition.

  4. New Einstein Metrics in Dimension Five Charles P. Boyer Krzysztof Galicki

    E-Print Network [OSTI]

    New Einstein Metrics in Dimension Five Charles P. Boyer Krzysztof Galicki Abstract: The purpose of this note is to prove the existence of new Sasakian­Einstein met­ rics on S 2 \\ThetaS 3 and on (S 2 \\ThetaS 3 )#(S 2 \\ThetaS 3 ): These give the first known examples of non­regular Sasakian­Einstein 5

  5. Superspace actions for multiple M2-branes, metric 3-algebras, and their classification

    SciTech Connect (OSTI)

    Cherkis, Sergey A.; Dotsenko, Vladimir; Saemann, Christian [Hamilton Mathematics Institute and School of Mathematics, Trinity College, Dublin 2 (Ireland)

    2009-04-15T23:59:59.000Z

    We classify canonical metric 3-algebra structures on matrix algebras and find novel three-dimensional conformally invariant actions in N=4 projective superspace based on them. These can be viewed as Chern-Simons theories with special matter content and couplings. We explore the relations of these actions with the N=2 actions based on generalized 3-Lie algebras found earlier and relate them to the original Bagger-Lambert-Gustavsson action.

  6. Is the $ISO(2,1)$ Gauge Gravity equivalent to the Metric Formulation?

    E-Print Network [OSTI]

    Jin-Ho Cho; Hyuk-jae Lee

    1996-08-21T23:59:59.000Z

    The quantization of the gravitational Chern-Simons coefficient is investigated in the framework of $ISO(2,1)$ gauge gravity. Some paradoxes involved are cured. The resolution is largely based on the inequivalence of $ISO(2,1)$ gauge gravity and the metric formulation. Both the Lorentzian scheme and the Euclidean scheme lead to the coefficient quantization, which means that the induced spin is not quite exotic in this context.

  7. Second United Nations International Conference

    Office of Scientific and Technical Information (OSTI)

    Second United Nations International Conference on the Peaceful Uses of Atomic Energy ON THE ANALYSIS O F BUBBLE CHAMBER TRACKS Q Hugh Bradner and F r a n k Solmitz INTRODUCTION A j...

  8. Reduction in Unit Steam Production

    E-Print Network [OSTI]

    Gombos, R.

    2004-01-01T23:59:59.000Z

    In 2001 the company's Arch-Brandenburg facility faced increased steam costs due to high natural gas prices and decreased production due to shutdown of a process. The facility was challenged to reduce unit steam consumption to minimize the effects...

  9. Meteorological Tables for Determination of Precipitable Water, Temperatures and Pressures Aloft for a Saturated Pseudoadiabatic Atmosphere -- in the Metric System

    E-Print Network [OSTI]

    Eihle, W. O.; Powers, R. J.; Clark, R.A.

    TR-16 1968 Meteorological Tables for Determination of Precipitable Water, Temperatures and Pressures Aloft for a Saturated Pseudoadiabatic Atmosphere?in the Metric System W.O. Eihle R.J. Powers R.A. Clark...

  10. Genome Assembly Forensics: Metrics for Assessing Assembly Correctness (Metagenomics Informatics Challenges Workshop: 10K Genomes at a Time)

    SciTech Connect (OSTI)

    Pop, Mihai [University of Maryland] [University of Maryland

    2011-10-13T23:59:59.000Z

    University of Maryland's Mihai Pop on "Genome Assembly Forensics: Metrics for Assessing Assembly Correctness" at the Metagenomics Informatics Challenges Workshop held at the DOE JGI on October 12-13, 2011.

  11. Genome Assembly Forensics: Metrics for Assessing Assembly Correctness (Metagenomics Informatics Challenges Workshop: 10K Genomes at a Time)

    ScienceCinema (OSTI)

    Pop, Mihai [University of Maryland

    2013-01-22T23:59:59.000Z

    University of Maryland's Mihai Pop on "Genome Assembly Forensics: Metrics for Assessing Assembly Correctness" at the Metagenomics Informatics Challenges Workshop held at the DOE JGI on October 12-13, 2011.

  12. Light Water Reactor Sustainability Program Operator Performance Metrics for Control Room Modernization: A Practical Guide for Early Design Evaluation

    SciTech Connect (OSTI)

    Ronald Boring; Roger Lew; Thomas Ulrich; Jeffrey Joe

    2014-03-01T23:59:59.000Z

    As control rooms are modernized with new digital systems at nuclear power plants, it is necessary to evaluate the operator performance using these systems as part of a verification and validation process. There are no standard, predefined metrics available for assessing what is satisfactory operator interaction with new systems, especially during the early design stages of a new system. This report identifies the process and metrics for evaluating human system interfaces as part of control room modernization. The report includes background information on design and evaluation, a thorough discussion of human performance measures, and a practical example of how the process and metrics have been used as part of a turbine control system upgrade during the formative stages of design. The process and metrics are geared toward generalizability to other applications and serve as a template for utilities undertaking their own control room modernization activities.

  13. ProPAMet: A Metric for Process and Project Paula Ventura Martins1, Alberto Rodrigues da Silva 2

    E-Print Network [OSTI]

    da Silva, Alberto Rodrigues

    ProPAMet: A Metric for Process and Project Alignment Paula Ventura Martins1, Alberto Rodrigues da;2 Paula Ventura Martins1, Alberto Rodrigues da Silva 2 mean for organizations to identify their strengths

  14. " Million U.S. Housing Units"

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

    0 Home Appliances Usage Indicators by Year of Construction, 2005" " Million U.S. Housing Units" ,,"Year of Construction" ,"Housing Units (millions)" ,,"Before 1940","1940 to...

  15. -UNIT NAME C-728 Motor Cleaning Facility

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

    UNIT NUMBER 33 -UNIT NAME C-728 Motor Cleaning Facility -REGULATORY STATUS--3:.:::.0:..04(--u) -LOCATION North of C-720 (Map...

  16. " Million U.S. Housing Units"

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

    5 Space Heating Usage Indicators by Number of Household Members, 2005" " Million U.S. Housing Units" ,,"Number of Households With --" ,"Housing Units (millions)" ,,"1 Member","2...

  17. " Million U.S. Housing Units"

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

    5 Space Heating Usage Indicators by Year of Construction, 2005" " Million U.S. Housing Units" ,,"Year of Construction" ,"Housing Units (millions)" ,,"Before 1940","1940 to...

  18. Metrics Thermostat

    E-Print Network [OSTI]

    Hauser, John

    The explosion of information and information technology has led many firms to evolve a dispersed product development process with people and organizations spread throughout the world. To

  19. Metrics Thermostat

    E-Print Network [OSTI]

    Hauser, John

    The explosion of information and information technology has led many firms to evolve a dispersed product development process with people and organizations spread throughout the world. To coordinate such dispersed processes ...

  20. Resilience Metrics

    Office of Environmental Management (EM)

    - CIRA will utilize existing ANL capabilities in areas such as: * High performance computing * Climate modeling * Energy systems modeling * Complex adaptive systems 2...