National Library of Energy BETA

Sample records for biomassc otherd factors

  1. Human Factors @ UB Fall 2010 Human Factors

    E-Print Network [OSTI]

    Krovi, Venkat

    . Outsourcing aviation maintenance: Hu- man factors implications, specifically for communications. C. Drury, K. Guy, C. Wenner. International Journal of Aviation Psychology, 2010, 20, 124 ­ 143. #12;2 Human Factors

  2. The Transcription Factor Encyclopedia

    E-Print Network [OSTI]

    2012-01-01

    Transcription Factor Encyclopedia. Genome Biology 2012 13:Factor Encyclopedia. Gen- ome Biology 2012, 13:000. where ‘Biology 2012, 13:R24 http://genomebiology.com/2012/13/3/R24 SOFTWARE Open Access The Transcription Factor Encyclopedia

  3. The MX Factor

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

    MX Factor Test films played a strategic-planning role in the debates of the late 1970s and early 1980s about where and how to deploy the MX intercontinental ballistic missile...

  4. Power Factor Improvement 

    E-Print Network [OSTI]

    Viljoen, T. A.

    1979-01-01

    and disadvantages of various locations in the electrical network are described including the cost of installation and network capacity improvement. Sizing of capacitors is also covered. Finally, some case studies involving power factor improvement are presented...

  5. Reducing Power Factor Cost

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

    Before PF 100142 0.70 or 70% After PF 100105 0.95 or 95% PB References: B.C. Hydro. Power Factor. The GEM Series. October 1989. Commonwealth Sprague Capacitor, Inc....

  6. Electromagetic proton form factors

    E-Print Network [OSTI]

    M Y Hussein

    2006-10-31

    The electromagnetic form factors are crucial to our understanding of the proton internal structure, and thus provide a strong constraint of the distributions of the charge and magnetization current within the proton. We adopted the quark-parton model for calculating and understanding the charge structure of the proton interms of the electromagnetic form factors. A remarkable agreement with the available experimental evidence is found.

  7. Optimizing Power Factor Correction 

    E-Print Network [OSTI]

    Phillips, R. K.; Burmeister, L. C.

    1986-01-01

    FACTOR CORRECTION Robert K. Phillips and Louis C. Burmeister, Mechanical Engineering, University of Kansas, Lawrence, KS The optimal investment for power factor correcting capacitors for Kansas Power and Light Company large power contract customers... consumer of electricity were made for demands of 200, 400, 800, 1,600, 3,200, and 6,400 k\\~ and monthly energy consumption periods of 100, 150, 200, 300, 400, and 500 hours for several capacitor purchase and installation costs. The results...

  8. FGF growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY); Takahashi, Kazuyuki (Germantown, MD)

    2012-07-24

    The present invention provides a fibroblast growth factor heparin-binding analog of the formula: ##STR00001## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.

  9. Multi-factor authentication

    DOE Patents [OSTI]

    Hamlet, Jason R; Pierson, Lyndon G

    2014-10-21

    Detection and deterrence of spoofing of user authentication may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a user of the hardware device. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generates a PUF value. Combining logic is coupled to receive the PUF value, combines the PUF value with one or more other authentication factors to generate a multi-factor authentication value. A key generator is coupled to generate a private key and a public key based on the multi-factor authentication value while a decryptor is coupled to receive an authentication challenge posed to the hardware device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key.

  10. Geothermal Plant Capacity Factors

    SciTech Connect (OSTI)

    Greg Mines; Jay Nathwani; Christopher Richard; Hillary Hanson; Rachel Wood

    2015-01-01

    The capacity factors recently provided by the Energy Information Administration (EIA) indicated this plant performance metric had declined for geothermal power plants since 2008. Though capacity factor is a term commonly used by geothermal stakeholders to express the ability of a plant to produce power, it is a term frequently misunderstood and in some instances incorrectly used. In this paper we discuss how this capacity factor is defined and utilized by the EIA, including discussion on the information that the EIA requests from operations in their 923 and 860 forms that are submitted both monthly and annually by geothermal operators. A discussion is also provided regarding the entities utilizing the information in the EIA reports, and how those entities can misinterpret the data being supplied by the operators. The intent of the paper is to inform the facility operators as the importance of the accuracy of the data that they provide, and the implications of not providing the correct information.

  11. Fast Factoring of Integers

    E-Print Network [OSTI]

    Gordon Chalmers

    2005-09-20

    An algorithm is given to factor an integer with $N$ digits in $\\ln^m N$ steps, with $m$ approximately 4 or 5. Textbook quadratic sieve methods are exponentially slower. An improvement with the aid of an a particular function would provide a further exponential speedup.

  12. Matrix Factorization and Matrix Concentration

    E-Print Network [OSTI]

    Mackey, Lester

    2012-01-01

    PCA 3 Mixed Membership Matrix Factorization 3.15.2 Matrix concentration3.3 Mixed Membership Matrix Factorization . . . 3.4

  13. Deuteron Form Factor

    SciTech Connect (OSTI)

    Farrar, G.R.; Huleihel, K.; Zhang, H. (Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855 (United States))

    1995-01-30

    We obtain the perturbative QCD (PQCD) prediction for the leading twist deuteron form factor, treated as a pair of nucleons in nonrelativistic bound state. It is [lt]10[sup [minus]3] times experiment at [ital Q][sup 2]=4 GeV[sup 2], suggesting that PQCD is not relevant to the deuteron form factor at present values of [ital Q][sup 2], or that non-nucleon (e.g., hidden color'') degrees of freedom must be included for a correct description of the deuteron. The tree-level amplitude [similar to][ital eg][sup 10] and is the sum of several 10[sup 6] Feynman diagrams, making it an interesting case study in the behavior of perturbation theory.

  14. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index Journal Cited Half-Life 2014 JCR Science Edition Journal: CZECHOSLOVAK MATHEMATICAL JOURNAL Mark Journal Title ISSN Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items

  15. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index Journal Cited Half-Life 2012 JCR Science Edition Journal: CZECHOSLOVAK MATHEMATICAL JOURNAL Mark Journal Title ISSN Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items

  16. Tiled QR factorization algorithms

    E-Print Network [OSTI]

    Bouwmeester, Henricus; Langou, Julien; Robert, Yves

    2011-01-01

    This work revisits existing algorithms for the QR factorization of rectangular matrices composed of p-by-q tiles, where p >= q. Within this framework, we study the critical paths and performance of algorithms such as Sameh and Kuck, Modi and Clarke, Greedy, and those found within PLASMA. Although neither Modi and Clarke nor Greedy is optimal, both are shown to be asymptotically optimal for all matrices of size p = q^2 f(q), where f is any function such that \\lim_{+\\infty} f= 0. This novel and important complexity result applies to all matrices where p and q are proportional, p = \\lambda q, with \\lambda >= 1, thereby encompassing many important situations in practice (least squares). We provide an extensive set of experiments that show the superiority of the new algorithms for tall matrices.

  17. Electrical and Production Load Factors 

    E-Print Network [OSTI]

    Sen, T.; Heffington, W. M.

    2009-01-01

    factors and operating hours of small and medium-sized industrial plants are analyzed to classify shift-work patterns and develop energy conservation diagnostic tools. This paper discusses two types of electric load factors for each shift... The purpose of this paper is to analyze operating hours of small and medium-sized manufacturing plants in the United States and develop ranges of load factors for use as diagnostic tools for effective energy management. Load factor is defined...

  18. TMD theory, factorization and evolution

    E-Print Network [OSTI]

    John Collins

    2013-07-10

    The concepts and methods of factorization using transverse-momentum-dependent (TMD) parton densities and/or fragmentation functions are summarized.

  19. Filling factors and Braid group

    E-Print Network [OSTI]

    Wellington Cruz

    1998-02-25

    We extract the Braid group structure of a recently derived hierarchy scheme for the filling factors proposed by us which related the Hausdorff dimension, $h$, to statistics, $\

  20. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index 2014 JCR Science Edition Journal: Applications of Mathematics Mark Journal Title ISSN Total- life APPL MATH-CZECH 0862-7940 241 0.400 0.430 0.024 42 8.9 >10.0 Cited Journal Citing Journal Source

  1. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index 2012 JCR Science Edition Journal: Applications of Mathematics Mark Journal Title ISSN Total- life APPL MATH-CZECH 0862-7940 240 0.222 0.549 0.054 37 7.3 >10.0 Cited Journal Citing Journal Source

  2. Electrical and Production Load Factors 

    E-Print Network [OSTI]

    Sen, Tapajyoti

    2010-07-14

    Load factors are an important simplification of electrical energy use data and depend on the ratio of average demand to peak demand. Based on operating hours of a facility they serve as an important benchmarking tool for the industrial sector...

  3. Efficient Networks for Quantum Factoring

    E-Print Network [OSTI]

    David Beckman; Amalavoyal N. Chari; Srikrishna Devabhaktuni; John Preskill

    1996-02-21

    We consider how to optimize memory use and computation time in operating a quantum computer. In particular, we estimate the number of memory qubits and the number of operations required to perform factorization, using the algorithm suggested by Shor. A $K$-bit number can be factored in time of order $K^3$ using a machine capable of storing $5K+1$ qubits. Evaluation of the modular exponential function (the bottleneck of Shor's algorithm) could be achieved with about $72 K^3$ elementary quantum gates; implementation using a linear ion trap would require about $396 K^3$ laser pulses. A proof-of-principle demonstration of quantum factoring (factorization of 15) could be performed with only 6 trapped ions and 38 laser pulses. Though the ion trap may never be a useful computer, it will be a powerful device for exploring experimentally the properties of entangled quantum states.

  4. Human Factors of Reporting Systems

    E-Print Network [OSTI]

    Johnson, C.W.

    Johnson,C.W. P. Carayon (ed.), A Handbook of Human Factors and Ergonomics in Healthcare and Patient Safety, Lawrence Erlbaum, London, UK. pp 715-750 Lawrence Erlbaum Associates

  5. Human factors in software development

    SciTech Connect (OSTI)

    Curtis, B.

    1986-01-01

    This book presents an overview of ergonomics/human factors in software development, recent research, and classic papers. Articles are drawn from the following areas of psychological research on programming: cognitive ergonomics, cognitive psychology, and psycholinguistics. Topics examined include: theoretical models of how programmers solve technical problems, the characteristics of programming languages, specification formats in behavioral research and psychological aspects of fault diagnosis.

  6. Nonnegative matrix factorization with -divergence

    E-Print Network [OSTI]

    Cichocki, Andrzej

    Nonnegative matrix factorization with -divergence Andrzej Cichocki a , Hyekyoung Lee b , Yong of Science and Technology San 31 Hyoja-dong, Nam-gu, Pohang 790-784, Korea Abstract Nonnegative matrix reduction, the goal of which is to decompose nonnegative data matrix X into a product of basis matrix

  7. Transfer Factors for Contaminant Uptake

    E-Print Network [OSTI]

    of supply, upon written request as follows: Address: U.S. Nuclear Regulatory Commission OfficeTransfer Factors for Contaminant Uptake by Fruit and Nut Trees Office of Nuclear Regulatory; licensee event reports; and Commission papers and their attachments. NRC publications in the NUREG series

  8. Optimization Online - Integer Factorization is in P

    E-Print Network [OSTI]

    Yuly Shipilevsky

    2012-08-31

    Aug 31, 2012 ... Integer Factorization is in P. Yuly Shipilevsky (yulysh2000 ***at*** yahoo.ca). Abstract: A polynomial-time algorithm for integer factorization, ...

  9. On Factorization of Molecular Wavefunctions

    E-Print Network [OSTI]

    Thierry Jecko; Brian T. Sutcliffe; R. Guy Woolley

    2015-07-18

    Recently there has been a renewed interest in the chemical physics literature of factorization of the position representation eigenfunctions \\{$\\Phi$\\} of the molecular Schr\\"odinger equation as originally proposed by Hunter in the 1970s. The idea is to represent $\\Phi$ in the form $\\varphi\\chi$ where $\\chi$ is \\textit{purely} a function of the nuclear coordinates, while $\\varphi$ must depend on both electron and nuclear position variables in the problem. This is a generalization of the approximate factorization originally proposed by Born and Oppenheimer, the hope being that an `exact' representation of $\\Phi$ can be achieved in this form with $\\varphi$ and $\\chi$ interpretable as `electronic' and `nuclear' wavefunctions respectively. We offer a mathematical analysis of these proposals that identifies ambiguities stemming mainly from the singularities in the Coulomb potential energy.

  10. On Factorization of Molecular Wavefunctions

    E-Print Network [OSTI]

    Thierry Jecko; Brian T. Sutcliffe; R. Guy Woolley

    2015-09-05

    Recently there has been a renewed interest in the chemical physics literature of factorization of the position representation eigenfunctions \\{$\\Phi$\\} of the molecular Schr\\"odinger equation as originally proposed by Hunter in the 1970s. The idea is to represent $\\Phi$ in the form $\\varphi\\chi$ where $\\chi$ is \\textit{purely} a function of the nuclear coordinates, while $\\varphi$ must depend on both electron and nuclear position variables in the problem. This is a generalization of the approximate factorization originally proposed by Born and Oppenheimer, the hope being that an `exact' representation of $\\Phi$ can be achieved in this form with $\\varphi$ and $\\chi$ interpretable as `electronic' and `nuclear' wavefunctions respectively. We offer a mathematical analysis of these proposals that identifies ambiguities stemming mainly from the singularities in the Coulomb potential energy.

  11. On Factorization of Molecular Wavefunctions

    E-Print Network [OSTI]

    Thierry Jecko; Brian T. Sutcliffe; R. Guy Woolley

    2015-10-13

    Recently there has been a renewed interest in the chemical physics literature of factorization of the position representation eigenfunctions \\{$\\Phi$\\} of the molecular Schr\\"odinger equation as originally proposed by Hunter in the 1970s. The idea is to represent $\\Phi$ in the form $\\varphi\\chi$ where $\\chi$ is \\textit{purely} a function of the nuclear coordinates, while $\\varphi$ must depend on both electron and nuclear position variables in the problem. This is a generalization of the approximate factorization originally proposed by Born and Oppenheimer, the hope being that an `exact' representation of $\\Phi$ can be achieved in this form with $\\varphi$ and $\\chi$ interpretable as `electronic' and `nuclear' wavefunctions respectively. We offer a mathematical analysis of these proposals that identifies ambiguities stemming mainly from the singularities in the Coulomb potential energy.

  12. Factors Impacting Decommissioning Costs - 13576

    SciTech Connect (OSTI)

    Kim, Karen; McGrath, Richard [Electric Power Research Institute, 3420 Hillview Ave., Palo Alto, California (United States)] [Electric Power Research Institute, 3420 Hillview Ave., Palo Alto, California (United States)

    2013-07-01

    The Electric Power Research Institute (EPRI) studied United States experience with decommissioning cost estimates and the factors that impact the actual cost of decommissioning projects. This study gathered available estimated and actual decommissioning costs from eight nuclear power plants in the United States to understand the major components of decommissioning costs. Major costs categories for decommissioning a nuclear power plant are removal costs, radioactive waste costs, staffing costs, and other costs. The technical factors that impact the costs were analyzed based on the plants' decommissioning experiences. Detailed cost breakdowns by major projects and other cost categories from actual power plant decommissioning experiences will be presented. Such information will be useful in planning future decommissioning and designing new plants. (authors)

  13. Human factors in waste management

    SciTech Connect (OSTI)

    Moray, N.

    1994-10-01

    This article examines the role of human factors in radioactive waste management. Although few problems and ergonomics are special to radioactive waste management, some problems are unique especially with long term storage. The entire sociotechnical system must be looked at in order to see where improvement can take place because operator errors, as seen in Chernobyl and Bhopal, are ultimately the result of management errors.

  14. Hausdorff dimension and filling factor

    E-Print Network [OSTI]

    Wellington Cruz

    1998-02-25

    We propose a new hierarchy scheme for the filling factor, a parameter which characterizes the occurrence of the Fractional Quantum Hall Effect (FQHE). We consider the Hausdorff dimension, $h$, as a parameter for classifying fractional spin particles, such that, it is written in terms of the statistics of the collective excitations. The number $h$ classifies these excitations with different statistics in terms of its homotopy class.

  15. Dissecting Soft Radiation with Factorization

    E-Print Network [OSTI]

    Iain W. Stewart; Frank J. Tackmann; Wouter J. Waalewijn

    2015-02-10

    An essential part of high-energy hadronic collisions is the soft hadronic activity that underlies the primary hard interaction. It includes soft radiation from the primary hard partons, secondary multiple parton interactions (MPI), and factorization-violating effects. The invariant mass spectrum of the leading jet in $Z$+jet and $H$+jet events is directly sensitive to these effects, and we use a QCD factorization theorem to predict its dependence on the jet radius $R$, jet $p_T$, jet rapidity, and partonic process for both the perturbative and nonperturbative components of primary soft radiation. We prove that the nonperturbative contributions involve only odd powers of $R$, and the linear $R$ term is universal for quark and gluon jets. The hadronization model in PYTHIA8 agrees well with these properties. The perturbative soft initial state radiation (ISR) has a contribution that depends on the jet area in the same way as the underlying event, but this degeneracy is broken by dependence on the jet $p_T$. The size of this soft ISR contribution is proportional to the color state of the initial partons, yielding the same positive contribution for $gg\\to Hg$ and $gq\\to Zq$, but a negative interference contribution for $q\\bar q\\to Z g$. Hence, measuring these dependencies allows one to separate hadronization, soft ISR, and MPI contributions in the data.

  16. Capacity Factor Risk At Nuclear Power Plants

    E-Print Network [OSTI]

    Du, Yangbo

    We develop a model of the dynamic structure of capacity factor risk. It incorporates the risk that the capacity factor may vary widely from year-to-year, and also the risk that the reactor may be permanently shutdown prior ...

  17. Cone Penetrometer N Factor Determination Testing Results

    SciTech Connect (OSTI)

    Follett, Jordan R.

    2014-03-05

    This document contains the results of testing activities to determine the empirical 'N Factor' for the cone penetrometer in kaolin clay simulant. The N Factor is used to releate resistance measurements taken with the cone penetrometer to shear strength.

  18. Common risk factors in bank stocks 

    E-Print Network [OSTI]

    Viale, Ariel Marcelo

    2007-09-17

    This dissertation provides evidence on the risk factors that are priced in bank equities. Alternative empirical models with precedent in the nonfinancial asset pricing literature are tested, including the single-factor Capital Asset Pricing Model...

  19. Industrial Equipment Demand and Duty Factors 

    E-Print Network [OSTI]

    Dooley, E. S.; Heffington, W. M.

    1998-01-01

    Demand and duty factors have been measured for selected equipment (air compressors, electric furnaces, injection molding machines, centrifugal loads, and others) in industrial plants. Demand factors for heavily loaded air ...

  20. Guidelines for Power Factor Improvement Projects 

    E-Print Network [OSTI]

    Massey, G. W.

    1999-01-01

    Power factor is an indication of electrical system efficiency. Low power factor, or low system efficiency, may be due to one or more causes, including lightly loaded transformers, oversized electric motors, and harmonic-generating non-linear loads...

  1. Closing a Loophole in Factorization Proofs

    SciTech Connect (OSTI)

    Bodwin, Geoffrey T. [HEP Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois, 60439 (United States); Garcia i Tormo, Xavier [HEP Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois, 60439 (United States); Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2G7 (Canada); Lee, Jungil [Department of Physics, Korea University, Seoul 136-701 (Korea, Republic of)

    2011-05-23

    We address the possibility in factorization proofs that low-energy collinear gluons can couple to soft gluons.

  2. http://erg.sagepub.com/ Factors Applications

    E-Print Network [OSTI]

    Kaber, David B.

    http://erg.sagepub.com/ Factors Applications Ergonomics in Design: The Quarterly of Human httpErgonomics in Design: The Quarterly of Human Factors Applications Peter A. Hancock, Richard J. Jagacinski: Human Factors and Ergonomics Society can be found at:Ergonomics in Design: The Quarterly of Human

  3. Human factors: a necessary tool for industry

    SciTech Connect (OSTI)

    Starcher, K.O.

    1984-03-09

    The need for human factors (ergonomics) input in the layout of a ferroelectric ceramics laboratory is presented as an example of the overall need for human factors professionals in industry. However, even in the absence of one trained in human factors, knowledge of a few principles in ergonomics will provide many possibilities for improving performance in the industrial environment.

  4. Note on Integer Factoring Algorithms II

    E-Print Network [OSTI]

    N. A. Carella

    2007-02-08

    This note introduces a new class of integer factoring algorithms. Two versions of this method will be described, deterministic and probabilistic. These algorithms are practical, and can factor large classes of balanced integers N = pq, p < q < 2p in superpolynomial time. Further, an extension of the Fermat factoring method is proposed.

  5. Journal influence factors6 Massimo Franceschet

    E-Print Network [OSTI]

    Franceschet, Massimo

    Journal influence factors6 Massimo Franceschet Department of Mathematics and Computer Science of journal influence, namely 2- year impact factor, 5-year impact factor, eigenfactor and article influence. These indicators have been recently added by Thomson Reuters to the Journal Citation Reports, in both science

  6. Antenna factorization in strongly ordered limits

    SciTech Connect (OSTI)

    Kosower, David A.

    2005-02-15

    When energies or angles of gluons emitted in a gauge-theory process are small and strongly ordered, the emission factorizes in a simple way to all orders in perturbation theory. I show how to unify the various strongly ordered soft, mixed soft-collinear, and collinear limits using antenna factorization amplitudes, which are generalizations of the Catani-Seymour dipole factorization function.

  7. Factors fragmenting the Russian Federation

    SciTech Connect (OSTI)

    Brown, E.

    1993-10-06

    This paper examines the factors that threaten the future of the Russian Federation (RF). The observations are based on a study that focused on eight republics: Mordova, Udmurtia, Tatarstan, Mari El, Bashkortostan, Kabardino-Balkaria, Buryatia, and Altay Republic. These republics were selected for their geographic and economic significance to the RF. Tatarstan, Bashkortostan, Udmurtia, and Mari El are located on important supply routes, such as the Volga River and the trans-Siberian railroad. Some of these republics are relatively wealthy, with natural resources such as oil (e.g., Tatarstan and Bashkortostan), and all eight republics play significant roles in the military-industrial complex. The importance of these republics to the RF contrasts to the relative insignificance of the independence-minded Northern Caucasus area. The author chose not to examine the Northern Caucasus region (except Kabardino-Balkaria) because these republics may have only a minor impact on the rest of the RF if they secede. Their impact would be minimized because they lie on the frontiers of the RF. Many Russians believe that {open_quotes}it might be best to let such a troublesome area secede.{close_quotes}

  8. Synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Pena, Louis A.; Zamora, Paul; Lin, Xinhua; Glass, John D.

    2007-01-23

    The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain that binds a heparin-binding growth factor receptor, covalently bound to a hydrophobic linker, which is in turn covalently bound to a non-signaling peptide that includes a heparin-binding domain. The synthetic heparin-binding growth factor analogs are useful as soluble biologics or as surface coatings for medical devices.

  9. Lower bounds for approximate factorizations via semidefinite ...

    E-Print Network [OSTI]

    ABSTRACT The problem of approximately factoring a real or complex multivariate polynomial f seeks minimal perturbations ? f to the coefficients of the input ...

  10. Industrial Power Factor Analysis Guidebook. Electrotek Concepts...

    Office of Scientific and Technical Information (OSTI)

    low power factors, increased conductor and transformer losses, and lower voltages. Utilities must supply both active and reactive power and compensate for these losses. Power...

  11. Emerging alternatives to the impact factor

    E-Print Network [OSTI]

    Banks, Marcus A.; Dellavalle, Robert

    2008-01-01

    abs/0709.0896. 12. Public Library of Science Medicineimpact factor game,” Public Library of Science Medicine Voljournals published by the Public Library of Science, follows

  12. Tetrahydroquinoline Derivatives as Potent and Selective Factor...

    Office of Scientific and Technical Information (OSTI)

    Derivatives as Potent and Selective Factor XIa Inhibitors Authors: Quan, Mimi L. ; Wong, Pancras C. ; Wang, Cailan ; Woerner, Francis ; Smallheer, Joanne M. ; Barbera, Frank...

  13. CONTROL OF MECHANICALLY ACTIVATED POLYMERSOME FUSION: FACTORS...

    Office of Scientific and Technical Information (OSTI)

    MECHANICALLY ACTIVATED POLYMERSOME FUSION: FACTORS AFFECTING FUSION. Henderson, Ian M.; Paxton, Walter F Abstract not provided. Sandia National Laboratories (SNL-NM), Albuquerque,...

  14. Factorization for hadronic heavy quarkonium production

    E-Print Network [OSTI]

    Jian-Wei Qiu

    2006-10-31

    We briefly review several models of heavy quarkonium production in hadronic collisions, and discuss the status of QCD factorization for these production models.

  15. CONTROL OF MECHANICALLY ACTIVATED POLYMERSOME FUSION: FACTORS...

    Office of Scientific and Technical Information (OSTI)

    CONTROL OF MECHANICALLY ACTIVATED POLYMERSOME FUSION: FACTORS AFFECTING FUSION. Citation Details In-Document Search Title: CONTROL OF MECHANICALLY ACTIVATED POLYMERSOME FUSION:...

  16. Timed Nuclear Import of a Transcription Factor During Erythropoiesis Erythroid Krppel-like factor (EKLF) is an erythroid transcription factor

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    Timed Nuclear Import of a Transcription Factor During Erythropoiesis Erythroid Krüppel-like factor. The regulatory mechanisms of the nuclear transport of EKLF during erythroid differentiation have remained unclear provided essential new insights into this process. They show that nuclear import of EKLF in erythroid cells

  17. Factors Affecting PMU Installation Costs (October 2014) | Department...

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

    Factors Affecting PMU Installation Costs (October 2014) Factors Affecting PMU Installation Costs (October 2014) The Department of Energy investigated the major cost factors that...

  18. Psychology 4330, Spring 2011. Human Factors Engineering

    E-Print Network [OSTI]

    Sanders, Matthew

    with an interest in design should remember that it is not really possible to teach ergonomic design per se without: Guastello, S. J. (2006). Human factors engineering and ergonomics: A systems approach. Mahwah, NJ: Lawrence/19 Introduction to human factors (T1) 1/24 Usability evaluation methods (T2) 1/31 Systems that change over time (T

  19. Photon impact factor in the NLO

    SciTech Connect (OSTI)

    Balitsky, Ian [JLAB

    2013-04-01

    The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as a NLO k{sub T}-factorization formula for the structure functions of small-x deep inelastic scattering.

  20. Gauss Sum Factorization with Cold Atoms

    SciTech Connect (OSTI)

    Gilowski, M.; Wendrich, T.; Mueller, T.; Ertmer, W.; Rasel, E. M. [Institut fuer Quantenoptik, Leibniz Universitaet Hannover, Welfengarten 1, D-30167 Hannover (Germany); Jentsch, Ch. [Astrium GmbH-Satellites, 88039 Friedrichshafen (Germany); Schleich, W. P. [Institut fuer Quantenphysik, Universitaet Ulm, Albert-Einstein-Allee 11, D-89081 Ulm (Germany)

    2008-01-25

    We report the first implementation of a Gauss sum factorization algorithm by an internal state Ramsey interferometer using cold atoms. A sequence of appropriately designed light pulses interacts with an ensemble of cold rubidium atoms. The final population in the involved atomic levels determines a Gauss sum. With this technique we factor the number N=263193.

  1. Platelet-derived growth factor and transforming growth factor beta synergistically potentiate inflammatory mediator synthesis by fibroblast-like synoviocytes

    E-Print Network [OSTI]

    Rosengren, Sanna; Corr, Maripat; Boyle, David L

    2010-01-01

    et al. , Platelet-derived growth factor and transformingactivated by platelet-derived growth factor. Clin Expmesylate inhibits platelet derived growth factor stimulated

  2. Effects of friction factor and slip factor on the performance of a centrifugal slurry pump 

    E-Print Network [OSTI]

    Sheth, Ketankumar Kantilal

    1985-01-01

    EFFECTS OF FRICTION FACTOR AND SLIP FACTOR ON THE PERFORMANCE OF A CENTRIFUGAL SLURRY PUMP A Thesis by KETANKUMAR KANTILAL SHETH Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1985 Ma]or Sub]ect: Mechanical Engineering EFFECTS OF FRICTION FACTOR AND SLIP FACTOR ON THE PERFORMANCE OF A CENTRIFUGAL SLURRY PUMP A Thesis by KETANKUMAR KANTILAL SHETH Approved as to style and content by...

  3. Synthetic heparin-binding factor analogs

    DOE Patents [OSTI]

    Pena, Louis A. (Poquott, NY); Zamora, Paul O. (Gaithersburg, MD); Lin, Xinhua (Plainview, NY); Glass, John D. (Shoreham, NY)

    2010-04-20

    The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain, and preferably two peptide chains branched from a dipeptide branch moiety composed of two trifunctional amino acid residues, which peptide chain or chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a linker, which may be a hydrophobic linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  4. Chiral solitons in nuclei: Electromagnetic form factors

    E-Print Network [OSTI]

    Jason R. Smith; Gerald A. Miller

    2004-09-08

    We calculate the electromagnetic form factors of a bound proton. The Chiral Quark-Soliton model provides the quark and antiquark substructure of the proton, which is embedded in nuclear matter. This procedure yields significant modifications of the form factors in the nuclear environment. The sea quarks are almost completely unaffected, and serve to mitigate the valence quark effect. In particular, the ratio of the isoscalar electric to the isovector magnetic form factor decreases by 20% at Q^2=1 GeV^2 at nuclear density, and we do not see a strong enhancement of the magnetic moment.

  5. Factors and Feeds for Supplementing Beef Cows 

    E-Print Network [OSTI]

    Hammack, Stephen P.; Gill, Ronald J.

    2000-05-03

    A beef cow requires energy, protein, minerals and vitamins in its diet. Many factors, including forage quantity and quality and animal body condition, affect the amounts of required nutrients....

  6. Parametrizing Compton form factors with neural networks

    E-Print Network [OSTI]

    Kresimir Kumericki; Dieter Mueller; Andreas Schafer

    2011-12-08

    We describe a method, based on neural networks, of revealing Compton form factors in the deeply virtual region. We compare this approach to standard least-squares model fitting both for a simplified toy case and for HERMES data.

  7. Carbon Dioxide Emission Factors for Coal

    Reports and Publications (EIA)

    1994-01-01

    The Energy Information Administration (EIA) has developed factors for estimating the amount of carbon dioxide emitted, accounting for differences among coals, to reflect the changing "mix" of coal in U.S. coal consumption.

  8. Factors favorable to public participation success

    SciTech Connect (OSTI)

    Peelle, E.; Schweitzer, M.; Munro, J.; Carnes, S.; Wolfe, A.

    1996-05-01

    Categories of factors linked to successful public participation (PP) program outcomes include PP process, organizational context, sociopolitical context, strategic considerations and unique (special circumstances) factors. We re-order the long list factors according to how essential, important, and unique they are and discuss their significance and interrelationships. It is argued that bureacratic structure and operational modes are basically in conflict with features of successful PP programs (openness, two-way education, communication with nonexpert outsiders). If this is so, then it is not surprising that the factors essential for PP success in bureacracies involve extraordinary management efforts by agencies to bypass, compensate for, or overcome structural constraints. We conclude by speculating about the long-term viability of PP practices in the agency setting as well as the consequences for agencies that attempt the problematic task of introducing PP into their complex, mission-oriented organizations.

  9. Factors Involved in Search Dog Training 

    E-Print Network [OSTI]

    Alexander, Michael B.

    2010-07-14

    Events of significant impact as recent as hurricane Ike yielded a consistent disturbing truth: we lack sufficient numbers of competent search dog [Canis familiaris] teams. This study was conceived to provide information in identifying factors...

  10. Distributed naming in a factored operating system

    E-Print Network [OSTI]

    Beckmann, Nathan (Nathan Zachary)

    2010-01-01

    A factored operating system (fos) is a new operating system design for manycore and cloud computers. In fos, OS services are separated from application code and run on distinct cores. Furthermore, each service is split ...

  11. Enabling Factors in Successful Product Development

    E-Print Network [OSTI]

    Tang, Victor

    2005-08-15

    The research literature and industry best-practices report a vast number of enabling factors that contribute to successful product development (PD). Collectively this body of work also establishes the causal linkages between ...

  12. Human Factors of Healthcare Reporting Systems

    E-Print Network [OSTI]

    Johnson, C.W.

    Johnson,C.W. P. Carayon (ed), A Handbook of Human Factors and Ergonomics in Healthcare and Patient Safety, Lawrence Erlbaum, London, UK pp 525-560 Lawrence Erlbaum Associates

  13. Proton form factor effects in hydrogenic atoms

    SciTech Connect (OSTI)

    Daza, F. Garcia; Kelkar, N. G.; Nowakowski, M.

    2011-10-21

    The proton structure corrections to the hyperfine splittings in electronic and muonic hydrogen are evaluated using the Breit potential with electromagnetic form factors. In contrast to other methods, the Breit equation with q{sup 2} dependent form factors is just an extension of the standard Breit equation which gives the hyperfine splitting Hamiltonian. Precise QED corrections are comparable to the structure corrections which therefore need to be evaluated ab initio.

  14. Rice Quality Factors: Implications For Management Decisions. 

    E-Print Network [OSTI]

    Grant, Warren R.; Rister, Edward, M.; Brorsen, B. Wade

    1986-01-01

    . Review comments and suggestions from Bill Black, Bart Drees, Arthur Gerlow, Melvin Parker, James Stansel, Mo Way, Bill Webb, and Michael Wohlgenant are also appreciated. A special thanks to Kim Trant for editorial assistance. ... Rice Quality Factors... that grades are intended to measure are red rice, weed seeds, damaged kernels (including peck), off-color, chalk, and off-types of rice kernels. These factors should be negatively related to price, since they are all undesirable characteristics. 1 Graders...

  15. Factors affecting robust retail energy markets

    SciTech Connect (OSTI)

    Michelman, T.S.

    1999-04-01

    This paper briefly defines an active retail market, details the factors that influence market activity and their relative importance, compares activity in various retail energy markets to date, and predicts future retail energy market activity. Three primary factors translate into high market activity: supplier margins, translated into potential savings for actively shopping customers; market size; and market barriers. The author surveys activity nationwide and predicts hot spots for the coming year.

  16. The factor 2 in fundamental physics

    E-Print Network [OSTI]

    Peter Rowlands

    2001-10-24

    A brief history is given of the factor 2, starting in the most elementary considerations of geometry and kinematics of uniform acceleration, and moving to relativity, quantum mechanics and particle physics. The basic argument is that in all the significant cases in which the factor 2 or 1/2 occurs in fundamental physics, whether classical, quantum or relativistic, the same physical operation is taking place.

  17. Odd orders in Shor's factoring algorithm

    E-Print Network [OSTI]

    Thomas Lawson

    2015-01-13

    Shor's factoring algorithm (SFA) finds the prime factors of a number, $N=p_1 p_2$, exponentially faster than the best known classical algorithm. Responsible for the speed-up is a subroutine called the quantum order finding algorithm (QOFA) which calculates the order -- the smallest integer, $r$, satisfying $a^r \\mod N =1$, where $a$ is a randomly chosen integer coprime to $N$ (meaning their greatest common divisor is one, $\\gcd(a, N) =1$). Given $r$, and with probability not less than $1/2$, the factors are given by $p_1 = \\gcd (a^{\\frac{r}{2}} - 1, N)$ and $p_2 = \\gcd (a^{\\frac{r}{2}} + 1, N)$. For odd $r$ it is assumed the factors cannot be found (since $a^{\\frac{r}{2}}$ is not generally integer) and the QOFA is relaunched with a different value of $a$. But a recent paper [E. Martin-Lopez: Nat Photon {\\bf 6}, 773 (2012)] noted that the factors can sometimes be found from odd orders if the coprime is square. This raises the question of improving SFA's success probability by considering odd orders. We show that an improvement is possible, though it is small. We present two techniques for retrieving the order from apparently useless runs of the QOFA: not discarding odd orders; and looking out for new order finding relations in the case of failure. In terms of efficiency, using our techniques is equivalent to avoiding square coprimes and disregarding odd orders, which is simpler in practice. Even still, our techniques may be useful in the near future, while demonstrations are restricted to factoring small numbers. The most convincing demonstrations of the QOFA are those that return a non-power-of-two order, making odd orders that lead to the factors attractive to experimentalists.

  18. Simulating Factorization with a Quantum Computer

    E-Print Network [OSTI]

    Jose Luis Rosales

    2015-05-12

    Modern cryptography is largely based on complexity assumptions, for example, the ubiquitous RSA is based on the supposed complexity of the prime factorization problem. Thus, it is of fundamental importance to understand how a quantum computer would eventually weaken these algorithms. In this paper, one follows Feynman's prescription for a computer to simulate the physics corresponding to the algorithm of factoring a large number $N$ into primes. Using Dirac-Jordan transformation theory one translates factorization into the language of quantum hermitical operators, acting on the vectors of the Hilbert space. This leads to obtaining the ensemble of factorization of $N$ in terms of the Euler function $\\varphi(N)$, that is quantized. On the other hand, considering $N$ as a parameter of the computer, a Quantum Mechanical Prime Counting Function $\\pi_{QM}(x)$, where $x$ factorizes $N$, is derived. This function converges to $\\pi(x)$ when $N\\gg x$. It has no counterpart in analytic number theory and its derivation relies on semiclassical quantization alone.

  19. Chiral extrapolation of nucleon magnetic form factors

    SciTech Connect (OSTI)

    P. Wang; D. Leinweber; A. W. Thomas; R.Young

    2007-04-01

    The extrapolation of nucleon magnetic form factors calculated within lattice QCD is investigated within a framework based upon heavy baryon chiral effective-field theory. All one-loop graphs are considered at arbitrary momentum transfer and all octet and decuplet baryons are included in the intermediate states. Finite range regularization is applied to improve the convergence in the quark-mass expansion. At each value of the momentum transfer (Q{sup 2}), a separate extrapolation to the physical pion mass is carried out as a function of m{sub {pi}} alone. Because of the large values of Q{sup 2} involved, the role of the pion form factor in the standard pion-loop integrals is also investigated. The resulting values of the form factors at the physical pion mass are compared with experimental data as a function of Q{sup 2} and demonstrate the utility and accuracy of the chiral extrapolation methods presented herein.

  20. Human factors in nuclear technology - a history

    SciTech Connect (OSTI)

    Jones, D.B. )

    1992-01-01

    Human factors, human factors engineering (HFE), or ergonomics did not receive much formal attention in nuclear technology prior to the Three Mile Island Unit 2 (TMI-2) incident. Three principal reasons exist for this lack of concern. First, emerging technologies show little concern with how people will use a new system. Making the new technology work is considered more important than the people who will use it. Second, the culture of the users of nuclear power did not recognize a need for human factors. Traditional utilities had well established and effective engineering designs for control of electric power generation, while medicine considered the use of nuclear isotopes another useful tool, not requiring special ergonomics. Finally, the nuclear industry owed much to Admiral Rickover. He was definitely opposed.

  1. Hadronic form factors in kaon photoproduction

    SciTech Connect (OSTI)

    Syukurilla, L. Mart, T.

    2014-09-25

    We have revisited the effect of hadronic form factors in kaon photoproduction process by utilizing an isobaric model developed for kaon photoproduction off the proton. The model is able to reproduce the available experimental data nicely as well as to reveal the origin of the second peak in the total cross section, which was the main source of confusion for decades. Different from our previous study, in the present work we explore the possibility of using different hadronic form factors in each of the K?N vertices. The use of different hadronic form factors, e.g. dipole, Gaussian, and generalized dipole, has been found to produce a more flexible isobar model, which can provide a significant improvement in the model.

  2. Human factors challenges for advanced process control

    SciTech Connect (OSTI)

    Stubler, W.F.; O`Hara, J..M.

    1996-08-01

    New human-system interface technologies provide opportunities for improving operator and plant performance. However, if these technologies are not properly implemented, they may introduce new challenges to performance and safety. This paper reports the results from a survey of human factors considerations that arise in the implementation of advanced human-system interface technologies in process control and other complex systems. General trends were identified for several areas based on a review of technical literature and a combination of interviews and site visits with process control organizations. Human factors considerations are discussed for two of these areas, automation and controls.

  3. Unidentified factors in the nutrition of chickens 

    E-Print Network [OSTI]

    Dieckert, Julius Walter

    1951-01-01

    of the factor were described? The factor was found to be stable to heat and acid, Xn fact? ths activity of liver?L" wac increased several?4'oi14 by autoclaving at pH 1 for thirty xdxxutes? RecentIy? Tovs& Lslor+ and RLvsbgem {'%) reported that mink required...~ The idea was expressed explicitly by Hapson ('3&? '33) and hy ByerIy et aI ('33) ~ Hapson in working with rats found that these animals required something associated with animal protein for normal growthI unfortunate+? he did not con~us the study, ByurIy...

  4. Momentum compaction and phase slip factor

    SciTech Connect (OSTI)

    Ng, K.Y.; /Fermilab

    2010-10-01

    Section 2.3.11 of the Handbook of Accelerator Physics and Engineering on Landau damping is updated. The slip factor and its higher orders are given in terms of the various orders of the momentum compaction. With the aid of a simplified FODO lattice, formulas are given for the alteration of the lower orders of the momentum compaction by various higher multipole magnets. The transition to isochronicity is next demonstrated. Formulas are given for the extraction of the first three orders of the slip factor from the measurement of the synchrotron tune while changing the rf frequency. Finally bunch-length compression experiments in semi-isochronous rings are reported.

  5. Annotated bibliography of human factors applications literature

    SciTech Connect (OSTI)

    McCafferty, D.B.

    1984-09-30

    This bibliography was prepared as part of the Human Factors Technology Project, FY 1984, sponsored by the Office of Nuclear Safety, US Department of Energy. The project was conducted by Lawrence Livermore National Laboratory, with Essex Corporation as a subcontractor. The material presented here is a revision and expansion of the bibliographic material developed in FY 1982 as part of a previous Human Factors Technology Project. The previous bibliography was published September 30, 1982, as Attachment 1 to the FY 1982 Project Status Report.

  6. Photon impact factor and k{sub T} factorization in the next-to-leading order

    SciTech Connect (OSTI)

    Ian Balitsky

    2012-12-01

    The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as a NLO k{sub T}-factorization formula for the structure functions of small-x deep inelastic scattering.

  7. Domain Assignment to Transcription FactorsDomain Assignment to Transcription Factors 412 Proteins with

    E-Print Network [OSTI]

    Babu, M. Madan

    Domain Assignment to Transcription FactorsDomain Assignment to Transcription Factors 412 Proteins with at least one SCOP DBD assignment 412 Proteins with at least one SCOP DBD assignment 7 proteins with PFAM DBD assignment 7 proteins with PFAM DBD assignment 419 proteins with DBD assignment419 proteins

  8. Deep Mixtures of Factor Analysers Introduction

    E-Print Network [OSTI]

    Toronto, University of

    Deep Mixtures of Factor Analysers Introduction Experiments - High dimensional data (avg. log An efficient way to learn deep density models is to greedily learn one layer at a time using one layer latent Graphical Model of Deep MFA Illustration with 2D data Each ellipse is a Gaussian Component Aggregated

  9. Integrating Human Factors with Software Engineering Practices

    E-Print Network [OSTI]

    of the 38th Annual Meeting of the Human Factors and Ergonomics Society, Nashville, TN, October, 1994. Also to the design, development, and evaluation of usable and useful interactive systems, and presents a rationale Ergonomics and Safety Technology, Inc. Pittsburgh, PA 15213 USA jtr001@delphi.com 1. Introduction The design

  10. 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·R 10.73 psia·ft3 lbmol·R 62.36 liter·torr mol·K 0.7302 ft3·atm lbmol·R Temperature Conversions: T

  11. Singular subfactors of II_1 factors 

    E-Print Network [OSTI]

    Wiggins, Alan Daniel

    2007-09-17

    II1 factor and G is a countable discrete group acting on P by outer automorphisms, we characterize the elements x of PoG such that x(PoH)x0 PoH for some subgroup H of G. We establish that proper finite index singular subfactors do not have the weak...

  12. Distributed QR Factorization Based on Randomized Algorithms

    E-Print Network [OSTI]

    Zemen, Thomas

    Distributed QR Factorization Based on Randomized Algorithms Hana Strakov´a1 , Wilfried N. Gansterer of Algorithms Hana.Strakova@univie.ac.at, Wilfried.Gansterer@univie.ac.at 2 Forschungszentrum Telekommunication Wien, Austria Thomas.Zemen@ftw.at Abstract. Most parallel algorithms for matrix computations assume

  13. GRIDONOMICS An Introduction to the Factors Shaping

    E-Print Network [OSTI]

    Stoltz, Brian M.

    GRIDONOMICS An Introduction to the Factors Shaping Electric Industry Transformation White Paper industry is at a tipping point where the pace of change and opportunity for disruption is accelerating. Thirty years of energy policy and industry structural changes are combining with accelerating social

  14. Derivation of dose conversion factors for tritium

    SciTech Connect (OSTI)

    Killough, G. G.

    1982-03-01

    For a given intake mode (ingestion, inhalation, absorption through the skin), a dose conversion factor (DCF) is the committed dose equivalent to a specified organ of an individual per unit intake of a radionuclide. One also may consider the effective dose commitment per unit intake, which is a weighted average of organ-specific DCFs, with weights proportional to risks associated with stochastic radiation-induced fatal health effects, as defined by Publication 26 of the International Commission on Radiological Protection (ICRP). This report derives and tabulates organ-specific dose conversion factors and the effective dose commitment per unit intake of tritium. These factors are based on a steady-state model of hydrogen in the tissues of ICRP's Reference Man (ICRP Publication 23) and equilibrium of specific activities between body water and other tissues. The results differ by 27 to 33% from the estimate on which ICRP Publication 30 recommendations are based. The report also examines a dynamic model of tritium retention in body water, mineral bone, and two compartments representing organically-bound hydrogen. This model is compared with data from human subjects who were observed for extended periods. The manner of combining the dose conversion factors with measured or model-predicted levels of contamination in man's exposure media (air, drinking water, soil moisture) to estimate dose rate to an individual is briefly discussed.

  15. Pion form factor with twisted mass QCD

    E-Print Network [OSTI]

    Abdou M. Abdel-Rehim; Randy Lewis

    2004-09-10

    The pion form factor is calculated using quenched twisted mass QCD with beta=6.0 and maximal twisting angle omega=pi/2. Two pion masses and several values of momentum transfer are considered. The momentum averaging procedure of Frezzotti and Rossi is used to reduce lattice spacing errors, and numerical results are consistent with the expected O(a) improvement.

  16. Factors Influencing Succession: Lessons from Large, Infrequent

    E-Print Network [OSTI]

    Turner, Monica G.

    intense disturbances of large and small extent. Key words: disturbance frequency; disturbance intensityFactors Influencing Succession: Lessons from Large, Infrequent Natural Disturbances Monica G ABSTRACT Disturbance events vary in intensity, size, and fre- quency, but few opportunities exist to study

  17. Factored Language Models for Statistical Machine Translation

    E-Print Network [OSTI]

    Koehn, Philipp

    Factored Language Models for Statistical Machine Translation Amittai E. Axelrod TH E U N I V E R . . . . . . . . . . . . . . . . . . . . . 10 2.4.3 Log-Linear, Phrase-Based Translation Models . . . . . . . . . 11 3 Statistical Language S ITY OF E D I N B U R G H Master of Science by Research Institute for Communicating and Collaborative

  18. Structure Functions, Form Factors, and Lattice QCD

    E-Print Network [OSTI]

    Walter Wilcox; B. Andersen-Pugh

    1993-12-07

    We present results towards the calculation of the pion electric form factor and structure function on a $16^3\\times 24$ lattice using charge overlap. By sacrificing Fourier transform information in two directions, it is seen that the longitudinal four point function can be extracted with reasonable error bars at low momentum.

  19. Nucleon and $?$ elastic and transition form factors

    E-Print Network [OSTI]

    Jorge Segovia; Ian C. Cloet; Craig D. Roberts; Sebastian M. Schmidt

    2014-09-03

    We compute nucleon and Delta elastic and transition form factors, and compare predictions made using a framework built upon a Faddeev equation kernel and interaction vertices that possess QCD-like momentum dependence with results obtained using a vector-vector contact-interaction. The comparison emphasises that experiment is sensitive to the momentum dependence of the running couplings and masses in the strong interaction sector of the Standard Model and highlights that the key to describing hadron properties is a veracious expression of dynamical chiral symmetry breaking in the bound-state problem. Amongst the results we describe, the following are of particular interest: $G_E^p(Q^2)/G_M^p(Q^2)$ possesses a zero at $Q^2=9.5GeV^2$; any change in the interaction which shifts a zero in the proton ratio to larger $Q^2$ relocates a zero in $G_E^n(Q^2)/G_M^n(Q^2)$ to smaller $Q^2$; and there is likely a value of momentum transfer above which $G_E^n>G_E^p$. Regarding the $\\Delta(1232)$-baryon, we find that, inter alia: the electric monopole form factor exhibits a zero; the electric quadrupole form factor is negative, large in magnitude, and sensitive to the nature and strength of correlations in the $\\Delta(1232)$ Faddeev amplitude; and the magnetic octupole form factor is negative so long as rest-frame P- and D-wave correlations are included. In connection with the N-to-Delta transition, the momentum-dependence of the magnetic transition form factor, $G_M^\\ast$, matches that of $G_M^n$ once the momentum transfer is high enough to pierce the meson-cloud; and the electric quadrupole ratio is a keen measure of diquark and orbital angular momentum correlations.

  20. Spatiotemporal Distribution of NOx Storage: a Factor Controlling...

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

    Spatiotemporal Distribution of NOx Storage: a Factor Controlling NH3 and N2O Selectivities over a Commercial LNT Catalyst Spatiotemporal Distribution of NOx Storage: a Factor...

  1. High Quality Factor Fano-Resonant All-Dielectric Metamaterials...

    Office of Scientific and Technical Information (OSTI)

    High Quality Factor Fano-Resonant All-Dielectric Metamaterials Citation Details In-Document Search Title: High Quality Factor Fano-Resonant All-Dielectric Metamaterials Authors:...

  2. Test of factorization in diffractive deep inelastic scattering...

    Office of Scientific and Technical Information (OSTI)

    Test of factorization in diffractive deep inelastic scattering and photoproduction at HERA Citation Details In-Document Search Title: Test of factorization in diffractive deep...

  3. Multilevel Factor Analysis of Class and Student Achievement Components

    E-Print Network [OSTI]

    Bengt O. Muthén

    2011-01-01

    Multilevel Factor Analysis of Class and Student AchievementMultilevel Factor Analysis of Class and Student Achievementof students observed within classes, classes within schools,

  4. Major Risk Factors to the Integrated Facility Disposition Project...

    Office of Environmental Management (EM)

    Major Risk Factors to the Integrated Facility Disposition Project Major Risk Factors to the Integrated Facility Disposition Project The scope of the Integrated Facility Disposition...

  5. HUMAN FACTORS GUIDANCE FOR CONTROL ROOM EVALUATION

    SciTech Connect (OSTI)

    OHARA,J.; BROWN,W.; STUBLER,W.; HIGGINS,J.; WACHTEL,J.; PERSENSKY,J.J.

    2000-07-30

    The Human-System Interface Design Review Guideline (NUREG-0700, Revision 1) was developed by the US Nuclear Regulatory Commission (NRC) to provide human factors guidance as a basis for the review of advanced human-system interface technologies. The guidance consists of three components: design review procedures, human factors engineering guidelines, and a software application to provide design review support called the ``Design Review Guideline.'' Since it was published in June 1996, Rev. 1 to NUREG-0700 has been used successfully by NRC staff, contractors and nuclear industry organizations, as well as by interested organizations outside the nuclear industry. The NRC has committed to the periodic update and improvement of the guidance to ensure that it remains a state-of-the-art design evaluation tool in the face of emerging and rapidly changing technology. This paper addresses the current research to update of NUREG-0700 based on the substantial work that has taken place since the publication of Revision 1.

  6. Measurement of the ??*?? and ??*??' transition form factors

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

    del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; et al

    2011-09-06

    We study the reactions e?e??e?e??(') in the single-tag mode and measure the ??*??(') transition form factors in the momentum-transfer range from 4 to 40 GeV². The analysis is based on 469 fb?¹ of integrated luminosity collected at PEP-II with the BABAR detector at e?e? center-of-mass energies near 10.6 GeV.

  7. Measurement of the ??*?? and ??*??' transition form factors

    SciTech Connect (OSTI)

    del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu.?G.; Lynch, G.; Osipenkov, I. L.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Blinov, V. E.; Botov, A. A.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu.?I.; Solodov, E. P.; Todyshev, K.?Yu.; Yushkov, A. N.; Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.; Eisner, A. M.; Heusch, C. A.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Winstrom, L. O.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Dubrovin, M. S.; Meadows, B. T.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Jasper, H.; Petzold, A.; Spaan, B.; Kobel, M. J.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Fioravanti, E.; Franchini, P.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Petrella, A.; Piemontese, L.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Edwards, A. J.; Adametz, A.; Marks, J.; Uwer, U.; Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.; Volk, A.; Dauncey, P. D.; Tibbetts, M.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Crawley, H. B.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Firmino da Costa, J.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Perez, A.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wang, L.; Wormser, G.; Lange, D. J.; Wright, D. M.; Bingham, I.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Paramesvaran, S.; Wren, A. C.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Anderson, J.; Cenci, R.; Jawahery, A.; Roberts, D. A.; Simi, G.; Tuggle, J. M.; Dallapiccola, C.; Salvati, E.; Cowan, R.; Dujmic, D.; Sciolla, G.; Zhao, M.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.; Biassoni, P.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.; Corwin, L. A.; Honscheid, K.; Kass, R.; Blount, N. L.; Brau, J.; Frey, R.; Igonkina, O.; Kolb, J. A.; Rahmat, R.; Sinev, N. B.; Strom, D.; Strube, J.; Torrence, E.; Castelli, G.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Prendki, J.; Sitt, S.; Biasini, M.; Manoni, E.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J. J.; Lopes Pegna, D.; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Baracchini, E.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Mazzoni, M. A.; Piredda, G.; Renga, F.; Buenger, C.; Hartmann, T.; Leddig, T.; Schröder, H.; Waldi, R.; Adye, T.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yèche, Ch.; Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Franco Sevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.

    2011-09-06

    We study the reactions e?e??e?e??(') in the single-tag mode and measure the ??*??(') transition form factors in the momentum-transfer range from 4 to 40 GeV². The analysis is based on 469 fb?¹ of integrated luminosity collected at PEP-II with the BABAR detector at e?e? center-of-mass energies near 10.6 GeV.

  8. Factor Analysis for Skewed Data and Skew-Normal Maximum Likelihood Factor Analysis 

    E-Print Network [OSTI]

    Gaucher, Beverly Jane

    2013-04-04

    This research explores factor analysis applied to data from skewed distributions for the general skew model, the selection-elliptical model, the selection-normal model, the skew-elliptical model and the skew-normal model ...

  9. Transcription factor-based biosensors for detecting dicarboxylic acids

    SciTech Connect (OSTI)

    Dietrich, Jeffrey; Keasling, Jay

    2014-02-18

    The invention provides methods and compositions for detecting dicarboxylic acids using a transcription factor biosensor.

  10. 3.5. EFFICIENCY FACTORS 63 3.5 Efficiency factors

    E-Print Network [OSTI]

    Bailey, R. A.

    3.5. EFFICIENCY FACTORS 63 3.5 Efficiency factors For comparison we consider a complete) and the variance of the estimator of x is (x L-x)2 CBD, which is equal to r-1x x2 CBD. Definition The efficiency to a complete-block design with variance 2 CBD and the same replication is x x rx L-x 2 CBD 2 and the efficiency

  11. Lorentz Coherence and the Proton Form Factor

    E-Print Network [OSTI]

    Young S. Kim

    2015-02-28

    The dipole cutoff behavior for the proton form factor has been and still is one of the major issues in high-energy physics. It is shown that this dipole behavior comes from the coherence between the Lorentz contraction of the proton size and the decreasing wavelength of the incoming photon signal. The contraction rates are the same for both cases. This form of coherence is studied also in the momentum-energy space. The coherence effect in this space can be explained in terms of two overlapping wave functions.

  12. Factors for design of dips for roadways 

    E-Print Network [OSTI]

    McCasland, William Richard

    1957-01-01

    limit is sub]ect to mot1on which may cause considerable discomfort to be experienced by the oocupants. If a dip is particularly critical, the vehicle may even incur damages. The most important consideration, however, 1s the fact that the driver may... lose control of the vehicle momentarily and be involved in a traffic accident. These three factors indicate the need for all dips in roadways to be nrop- erly designed, whether they are to be temporary or oermanent. The use of dips as speed checks...

  13. Prime number generation and factor elimination

    E-Print Network [OSTI]

    Vineet Kumar

    2014-10-06

    We have presented a multivariate polynomial function termed as factor elimination function,by which, we can generate prime numbers. This function's mapping behavior can explain the irregularities in the occurrence of prime numbers on the number line. Generally the different categories of prime numbers found till date, satisfy the form of this function. We present some absolute and probabilistic conditions for the primality of the number generated by this method. This function is capable of leading to highly efficient algorithms for generating prime numbers.

  14. Emission Factors (EMFAC) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:of theClimateElgin, Illinois:JV JumpFactors (EMFAC) Jump to:

  15. The role of brain-derived neurotrophic factor in cortical motor learning

    E-Print Network [OSTI]

    Von dem Bussche, Mary

    2007-01-01

    T. , and Nakamura, S. , Brain-derived neurotrophic factor-dependent transfer of brain-derived neurotrophic factor toneurotrophic factors brain-derived neurotrophic factor and

  16. Human factors engineering program review model

    SciTech Connect (OSTI)

    Not Available

    1994-07-01

    The staff of the Nuclear Regulatory Commission is performing nuclear power plant design certification reviews based on a design process plan that describes the human factors engineering (HFE) program elements that are necessary and sufficient to develop an acceptable detailed design specification and an acceptable implemented design. There are two principal reasons for this approach. First, the initial design certification applications submitted for staff review did not include detailed design information. Second, since human performance literature and industry experiences have shown that many significant human factors issues arise early in the design process, review of the design process activities and results is important to the evaluation of an overall design. However, current regulations and guidance documents do not address the criteria for design process review. Therefore, the HFE Program Review Model (HFE PRM) was developed as a basis for performing design certification reviews that include design process evaluations as well as review of the final design. A central tenet of the HFE PRM is that the HFE aspects of the plant should be developed, designed, and evaluated on the basis of a structured top-down system analysis using accepted HFE principles. The HFE PRM consists of ten component elements. Each element in divided into four sections: Background, Objective, Applicant Submittals, and Review Criteria. This report describes the development of the HFE PRM and gives a detailed description of each HFE review element.

  17. Various factors affect coiled tubing limits

    SciTech Connect (OSTI)

    Yang, Y.S.

    1996-01-15

    Safety and reliability remain the primary concerns in coiled tubing operations. Factors affecting safety and reliability include corrosion, flexural bending, internal (or external) pressure and tension (or compression), and mechanical damage due to improper use. Such limits as coiled tubing fatigue, collapse, and buckling need to be understood to avoid disaster. With increased use of coiled tubing, operators will gain more experience. But at the same time, with further research and development of coiled tubing, the manufacturing quality will be improved and fatigue, collapse, and buckling models will become more mature, and eventually standard specifications will be available. This paper reviews the uses of coiled tubing and current research on mechanical behavior of said tubing. It also discusses several models used to help predict fatigue and failure levels.

  18. Chiral corrections to hyperon axial form factors

    SciTech Connect (OSTI)

    Jiang Fujiun; Tiburzi, B. C.

    2008-05-01

    We study the complete set of flavor-changing hyperon axial-current matrix elements at small momentum transfer. Using partially quenched heavy baryon chiral perturbation theory, we derive the chiral and momentum behavior of the axial and induced pseudoscalar form factors. The meson pole contributions to the latter posses a striking signal for chiral physics. We argue that the study of hyperon axial matrix elements enables a systematic lattice investigation of the efficacy of three-flavor chiral expansions in the baryon sector. This can be achieved by considering chiral corrections to SU(3) symmetry predictions, and their partially quenched generalizations. In particular, despite the presence of eight unknown low-energy constants, we are able to make next-to-leading order symmetry breaking predictions for two linear combinations of axial charges.

  19. Factors that influence follow-up after an abnormal mammogram 

    E-Print Network [OSTI]

    Copeland, Valerie Anne

    2009-05-15

    The focus of this study was to explore women’s experiences with follow-up after an abnormal mammogram, and factors that influence follow-up. Factors, including health status, found in the cancer screening and treatment ...

  20. Factors Analysis on Safety of Indoor Air Quality 

    E-Print Network [OSTI]

    Luo, Q.; Liu, Z.; Xiong, J.

    2006-01-01

    Influence factors on safety of indoor air quality (IAQ) were analyzed in this paper. Some regeneration compositions resulting from potential indoor chemical reactions may be more harmful to habitants. A few building flaws may be key factors...

  1. The Dirac Form Factor Predicts the Pauli Form Factor in the Endpoint Model

    E-Print Network [OSTI]

    Sumeet Dagaonkar; Pankaj Jain; John P. Ralston

    2015-03-24

    We compute the momentum-transfer dependence of the proton Pauli form factor $F_{2}$ in the endpoint overlap model. We find the model correctly reproduces the scaling of the ratio of $F_{2}$ with the Dirac Form factor $F_{1}$ observed at the Jefferson Laboratory. The calculation uses the leading-power, leading twist Dirac structure of the quark light-cone wave function, and the same endpoint dependence previously determined from the Dirac form factor $F_{1}$. There are no parameters and no adjustable functions in the endpoint model's prediction for $F_{2}$. The model's predicted ratio $F_{2}(Q^{2})/F_{1}(Q^{2})$ is quite insensitive to the endpoint wave function, which explains why the observed ratio scales like $1/Q$ down to rather low momentum transfers. The endpoint model appears to be the only comprehensive model consistent with all form factor information as well as reproducing fixed-angle proton-proton scattering at large momentum transfer. Any one of the processes is capable of predicting the others.

  2. 2008 Guidelines to Defra's GHG Conversion Factors Guidelines to Defra's GHG Conversion Factors

    E-Print Network [OSTI]

    2457 x 2457 kWh x 0.347 x 0.330 Domestic Coal 3 tonnes x 2523 x 2523 kWh x 0.313 x 0.298 Wood Pellets 4 stations or for industrial purposes have different emission factors. Wood pellets are used in domestic

  3. Iteration of Target Matrices in Exploratory Factor Analysis

    E-Print Network [OSTI]

    Moore, Tyler Maxwell

    2013-01-01

    extraction methods .Performance of factor extraction methods Several methodshere. How well an extraction method performs is influenced

  4. Annihilation Poles for Form Factors in XXZ Model

    E-Print Network [OSTI]

    S. Pakuliak

    1993-07-14

    The annihilation poles for the form factors in XXZ model are studied using vertex operators introduced in \\cite{DFJMN}. An annihilation pole is the property of form factors according to which the residue of the $2n$-particle form factor in such a pole can be expressed through linear combination of the $2n-2$-particle form factors. To prove this property we use the bosonization of the vertex operators in XXZ model which was invented in \\cite{JMMN}.

  5. SUCCESS FACTORS IN INFORMATION SECURITY IMPLEMENTATION IN ORGANIZATIONS

    E-Print Network [OSTI]

    Williamson, John

    SUCCESS FACTORS IN INFORMATION SECURITY IMPLEMENTATION IN ORGANIZATIONS Maryam Al-Awadi University This paper will explore and identify success factors related to the implementation of information security was to identify those factors required to ensure successful implementation of information security, particularly

  6. http://rev.sagepub.com/ Reviews of Human Factors and

    E-Print Network [OSTI]

    http://rev.sagepub.com/ Ergonomics Reviews of Human Factors and http://rev.sagepub.com/content/7 Factors and Ergonomics Michael A. Nees and Bruce N. Walker Auditory Displays for In-Vehicle Technologies Published by: http://www.sagepublications.com On behalf of: Human Factors and Ergonomics Society at: can

  7. SHORT COMMUNICATION Rhizobium Nod factors induce increases in intracellular free

    E-Print Network [OSTI]

    Kunkel, Joseph G.

    SHORT COMMUNICATION Rhizobium Nod factors induce increases in intracellular free calcium of Massachusetts, Box 35810, Amherst MA 01003±5810, USA Summary Application of Nod factors to growing, responsive region after 10±15 min treatment with Nod factors. The extracellular Ca2+ ¯ux, detected with the non

  8. Human Factors Aspects of Power System Flow Animation

    E-Print Network [OSTI]

    Human Factors Aspects of Power System Flow Animation Douglas A. Wiegmann, Gavin R. Essenberg experimental results associated with human factors aspects of using animation to display electric power system. Index Terms--Power System Operations and Planning, Power System Visualization, Animation, Human Factors

  9. The Multivariate Merit Factor of a Boolean T. Aaron Gulliver

    E-Print Network [OSTI]

    Parker, Matthew Geoffrey

    The Multivariate Merit Factor of a Boolean Function T. Aaron Gulliver Dept. of Electrical, the multivariate merit factor (MMF) of a Boolean function, is presented, and various infinite recursive quadratic sequence constructions are given for which both uni- variate and multivariate merit factors can be computed

  10. Bayesian CP Factorization of Incomplete Tensors with Automatic Rank Determination

    E-Print Network [OSTI]

    Zhang, Liqing

    IEEEProof Bayesian CP Factorization of Incomplete Tensors with Automatic Rank Determination Qibin--CANDECOMP/PARAFAC (CP) tensor factorization of incomplete data is a powerful technique for tensor completion through explicitly capturing the multilinear latent factors. The existing CP algorithms require the tensor rank

  11. Prediction and Informative Risk Factor Selection of Bone Diseases

    E-Print Network [OSTI]

    Buffalo, State University of New York

    --Electronic health records (EHRs); risk factor analysis; integrated feature extraction; risk factor selection1 Prediction and Informative Risk Factor Selection of Bone Diseases Hui Li, Xiaoyi Li, Murali and the overwhelming amount of electronic health records (EHRs) shared by healthcare institutions and practitioners, we

  12. Confinement and the safety factor profile

    SciTech Connect (OSTI)

    Batha, S.H.; Levinton, F.M.; Scott, S.D.

    1995-12-01

    The conjecture that the safety factor profile, q(r), controls the improvement in tokamak plasmas from poor confinement in the Low (L-) mode regime to improved confinement in the supershot regime has been tested in two experiments on the Tokamak Fusion Test Reactor (TFTR). First, helium was puffed into the beam-heated phase of a supershot discharge which induced a degradation from supershot to L-mode confinement in about 100 msec, far less than the current relaxation time. The q and shear profiles measured by a motional Stark effect polarimeter showed little change during the confinement degradation. Second, rapid current ramps in supershot plasmas altered the q profile, but were observed not to change significantly the energy confinement. Thus, enhanced confinement in supershot plasmas is not due to a particular q profile which has enhanced stability or transport properties. The discharges making a continuous transition between supershot and L-mode confinement were also used to test the critical-electron-temperature-gradient transport model. It was found that this model could not reproduce the large changes in electron and ion temperature caused by the change in confinement.

  13. Nucleosome-mediated cooperativity between transcription factors

    E-Print Network [OSTI]

    Leonid A. Mirny

    2009-01-19

    Cooperative binding of transcription factors (TFs) to cis-regulatory regions (CRRs) is essential for precision of gene expression in development and other processes. The classical model of cooperativity requires direct interactions between TFs, thus constraining the arrangement of TFs sites in a CRR. On the contrary, genomic and functional studies demonstrate a great deal of flexibility in such arrangements with variable distances, numbers of sites, and identities of the involved TFs. Such flexibility is inconsistent with the cooperativity by direct interactions between TFs. Here we demonstrate that strong cooperativity among non-interacting TFs can be achieved by their competition with nucleosomes. We find that the mechanism of nucleosome-mediated cooperativity is mathematically identical to the Monod-Wyman-Changeux (MWC) model of cooperativity in hemoglobin. This surprising parallel provides deep insights, with parallels between heterotropic regulation of hemoglobin (e.g. Bohr effect) and roles of nucleosome-positioning sequences and chromatin modifications in gene regulation. Characterized mechanism is consistent with numerous experimental results, allows substantial flexibility in and modularity of CRRs, and provides a rationale for a broad range of genomic and evolutionary observations. Striking parallels between cooperativity in hemoglobin and in transcription regulation point at a new design principle that may be used in range of biological systems.

  14. Human Factors Aspects of Operating Small Reactors

    SciTech Connect (OSTI)

    OHara, J.M.; Higgins, J.; Deem, R.; Xing, J.; DAgostino, A.

    2010-11-07

    The nuclear-power community has reached the stage of proposing advanced reactor designs to support power generation for decades to come. They are considering small modular reactors (SMRs) as one approach to meet these energy needs. While the power output of individual reactor modules is relatively small, they can be grouped to produce reactor sites with different outputs. Also, they can be designed to generate hydrogen, or to process heat. Many characteristics of SMRs are quite different from those of current plants, and so may require a concept of operations (ConOps) that also is different. The U.S. Nuclear Regulatory Commission (NRC) has begun examining the human factors engineering- (HFE) and ConOps- aspects of SMRs; if needed, they will formulate guidance to support SMR licensing reviews. We developed a ConOps model, consisting of the following dimensions: Plant mission; roles and responsibilities of all agents; staffing, qualifications, and training; management of normal operations; management of off-normal conditions and emergencies; and, management of maintenance and modifications. We are reviewing information on SMR design to obtain data about each of these dimensions, and have identified several preliminary issues. In addition, we are obtaining operations-related information from other types of multi-module systems, such as refineries, to identify lessons learned from their experience. Here, we describe the project's methodology and our preliminary findings.

  15. Commissioning of output factors for uniform scanning proton beams

    SciTech Connect (OSTI)

    Zheng Yuanshui; Ramirez, Eric; Mascia, Anthony; Ding Xiaoning; Okoth, Benny; Zeidan, Omar; Hsi Wen; Harris, Ben; Schreuder, Andries N.; Keole, Sameer [ProCure Proton Therapy Center, 5901 West Memorial Road, Oklahoma City, Oklahoma 73142 (United States); ProCure Treatment Centers, 420 North Walnut Street, Bloomington, Indiana 47404 (United States); ProCure Proton Therapy Center, 5901 West Memorial Road, Oklahoma City, Oklahoma 73142 (United States)

    2011-04-15

    Purpose: Current commercial treatment planning systems are not able to accurately predict output factors and calculate monitor units for proton fields. Patient-specific field output factors are thus determined by either measurements or empirical modeling based on commissioning data. The objective of this study is to commission output factors for uniform scanning beams utilized at the ProCure proton therapy centers. Methods: Using water phantoms and a plane parallel ionization chamber, the authors first measured output factors with a fixed 10 cm diameter aperture as a function of proton range and modulation width for clinically available proton beams with ranges between 4 and 31.5 cm and modulation widths between 2 and 15 cm. The authors then measured the output factor as a function of collimated field size at various calibration depths for proton beams of various ranges and modulation widths. The authors further examined the dependence of the output factor on the scanning area (i.e., uncollimated proton field), snout position, and phantom material. An empirical model was developed to calculate the output factor for patient-specific fields and the model-predicted output factors were compared to measurements. Results: The output factor increased with proton range and field size, and decreased with modulation width. The scanning area and snout position have a small but non-negligible effect on the output factors. The predicted output factors based on the empirical modeling agreed within 2% of measurements for all prostate treatment fields and within 3% for 98.5% of all treatment fields. Conclusions: Comprehensive measurements at a large subset of available beam conditions are needed to commission output factors for proton therapy beams. The empirical modeling agrees well with the measured output factor data. This investigation indicates that it is possible to accurately predict output factors and thus eliminate or reduce time-consuming patient-specific output measurements for proton treatments.

  16. LPS-inducible factor(s) from activated macrophages mediates cytolysis of Naegleria fowleri amoebae

    SciTech Connect (OSTI)

    Cleary, S.F.; Marciano-Cabral, F.

    1986-03-01

    Soluble cytolytic factors of macrophage origin have previously been described with respect to their tumoricidal activity. The purpose of this study was to investigate the mechanism and possible factor(s) responsible for cytolysis of the amoeba Naegleria fowleri by activated peritoneal macrophages from B6C3F1 mice. Macrophages or conditioned medium (CM) from macrophage cultures were incubated with /sup 3/H-Uridine labeled amoebae. Percent specific release of label served as an index of cytolysis. Bacille Calmette-Guerin (BCG) and Corynebacterium parvum macrophages demonstrated significant cytolysis of amoebae at 24 h with an effector to target ratio of 10:1. Treatment of macrophages with inhibitors of RNA or protein synthesis blocked amoebicidal activity. Interposition of a 1 ..mu..m pore membrane between macrophages and amoebae inhibited killing. Inhibition in the presence of the membrane was overcome by stimulating the macrophages with LPS. CM from SPS-stimulated, but not unstimulated, cultures of activated macrophages was cytotoxic for amoebae. The activity was heat sensitive and was recovered from ammonium sulfate precipitation of the CM. Results indicate that amoebicidal activity is mediated by a protein(s) of macrophage origin induced by target cell contact or stimulation with LPS.

  17. Nominal Performance Biosphere Dose Conversion Factor Analysis

    SciTech Connect (OSTI)

    Wasiolek, Maryla A.

    2000-12-21

    The purpose of this report was to document the process leading to development of the Biosphere Dose Conversion Factors (BDCFs) for the postclosure nominal performance of the potential repository at Yucca Mountain. BDCF calculations concerned twenty-four radionuclides. This selection included sixteen radionuclides that may be significant nominal performance dose contributors during the compliance period of up to 10,000 years, five additional radionuclides of importance for up to 1 million years postclosure, and three relatively short-lived radionuclides important for the human intrusion scenario. Consideration of radionuclide buildup in soil caused by previous irrigation with contaminated groundwater was taken into account in the BDCF development. The effect of climate evolution, from the current arid conditions to a wetter and cooler climate, on the BDCF values was evaluated. The analysis included consideration of different exposure pathway's contribution to the BDCFs. Calculations of nominal performance BDCFs used the GENII-S computer code in a series of probabilistic realizations to propagate the uncertainties of input parameters into the output. BDCFs for the nominal performance, when combined with the concentrations of radionuclides in groundwater allow calculation of potential radiation doses to the receptor of interest. Calculated estimates of radionuclide concentration in groundwater result from the saturated zone modeling. The integration of the biosphere modeling results (BDCFs) with the outcomes of the other component models is accomplished in the Total System Performance Assessment (TSPA) to calculate doses to the receptor of interest from radionuclides postulated to be released to the environment from the potential repository at Yucca Mountain.

  18. Dose factor entry and display tool for BNCT radiotherapy

    DOE Patents [OSTI]

    Wessol, Daniel E. (Bozeman, MT); Wheeler, Floyd J. (Idaho Falls, ID); Cook, Jeremy L. (Greeley, CO)

    1999-01-01

    A system for use in Boron Neutron Capture Therapy (BNCT) radiotherapy planning where a biological distribution is calculated using a combination of conversion factors and a previously calculated physical distribution. Conversion factors are presented in a graphical spreadsheet so that a planner can easily view and modify the conversion factors. For radiotherapy in multi-component modalities, such as Fast-Neutron and BNCT, it is necessary to combine each conversion factor component to form an effective dose which is used in radiotherapy planning and evaluation. The Dose Factor Entry and Display System is designed to facilitate planner entry of appropriate conversion factors in a straightforward manner for each component. The effective isodose is then immediately computed and displayed over the appropriate background (e.g. digitized image).

  19. Fractionation studies on the unidentified growth factor(s) in distillers dried solubles 

    E-Print Network [OSTI]

    Dannenburg, Warren Nathaniel

    1955-01-01

    "rltrr ro?v toJ oy itunler urr- . r. roan i ')1, in wn'ch aport it;~ ue. on tr, ited t. iuu whole liver anu dried bre er= yeast ai ?cured to oe . ", o~d s . urces oi tai- l'aCtOr Wnile dried Wiiej, di tiller= dried ~ui Oie-, nid ter. ontat. on s... c: ?ein . ilu . ~@i allan , irotein u' tne, rotein - dice; ? iid . o?cd that it le?t two i'ctur- . . ere required bg tiie cuici. &or og, . imum?io, t i . . )ne factor . ; suyfilied bg liver z ictiun= iii uriod oie, ers yea. . t, while t?= ot...

  20. Prenatal and Perinatal Risk Factors for Autism in China

    E-Print Network [OSTI]

    2010-01-01

    and perinatal risk factors for autism. Journal of PerinatalB. (1979). Viral exposure and autism. American Journal ofage and the risk of autism spectrum disorder. American

  1. Factors driving wind power development in the United States

    E-Print Network [OSTI]

    Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

    2003-01-01

    s Largest Purchase of Wind Power,” September 17, 2001.FACTORS DRIVING WIND POWER DEVELOPMENT IN THE UNITED STATESthe United States third in wind power capacity globally,

  2. Electromagnetic form factors and the hypercentral constituent quark model

    SciTech Connect (OSTI)

    Sanctis, M. De; Giannini, M. M.; Santopinto, E.; Vassallo, A.

    2007-12-15

    We present new results concerning the electromagnetic form factors of the nucleon using a relativistic version of the hypercentral constituent quark model and a relativistic current.

  3. Towards large-cohort comparative studies to define the factors...

    Office of Scientific and Technical Information (OSTI)

    Towards large-cohort comparative studies to define the factors influencing the gut microbial community structure of ASD patients Citation Details In-Document Search Title:...

  4. Planar superconducting resonators with internal quality factors above one million

    E-Print Network [OSTI]

    Martinis, John M.

    Planar superconducting resonators with internal quality factors above one million A. Megrant,1,2 C criti- cal elements for superconducting electromagnetic radiation detectors,1 quantum memories,2

  5. Factors influencing photocurrent generation in organic bulk heterojunc...

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

    Factors influencing photocurrent generation in organic bulk heterojunction solar cells: interfacial energetics and blend microstructure April 29, 2009 at 3pm36-428 Jenny Nelson...

  6. Factors Associated with Hepatitis B Testing Among Vietnamese Americans

    E-Print Network [OSTI]

    2010-01-01

    Asian American adults for hepatitis B: a cross-sectionalFactors Associated with Hepatitis B Testing Among VietnameseBACKGROUND: Chronic hepatitis B and hepatitis B- associated

  7. Factors Controlling The Geochemical Evolution Of Fumarolic Encrustatio...

    Open Energy Info (EERE)

    by the chemistry of the ejecta on which the relict encrustations are found. This matrix chemistry factor illustrates that the primary fumarolic minerals surrounding the...

  8. Method for determining formation quality factor from well log...

    Office of Scientific and Technical Information (OSTI)

    determining formation quality factor from well log data and its application to seismic reservoir characterization Citation Details In-Document Search Title: Method for...

  9. Factors governing sustainable groundwater pumping near a river

    E-Print Network [OSTI]

    Zhang, Y.

    2011-01-01

    study the interplay between riverbed clogging and infiltration.study various factors that can potentially impact infiltrationthat affect infiltration processes. Our study is performed

  10. Factors Affecting HCCI Combustion Phasing for Fuels with Single...

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

    Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry Factors Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry 2004...

  11. Analyticity properties and unitarity constraints of heavy meson form factors

    E-Print Network [OSTI]

    De Rafael, E; Eduardo de Rafael; Josep Taron; Rafael, Eduardo de; Taron, Josep

    1994-01-01

    We derive new bounds on the b-number form factor $F(q^2)$ of the B meson. (Revised version of hep-ph/9306214).

  12. A NOTE ON THE FACTORIZATION THEOREM OF TORIC ...

    E-Print Network [OSTI]

    1999-01-20

    In this section, we harvest the fruit “Weak Factorization Theorem” grown upon the tree of the ...... chatov Institute Atomic Energy preprint (1989). [Sumihiro] H.

  13. Energy Price Indices and Discount Factors for Life Cycle Cost...

    Office of Environmental Management (EM)

    Life Cycle Cost Analysis, 2013 Energy Price Indices and Discount Factors for Life Cycle Cost Analysis, 2013 Handbook describes the annual supplements to the NIST Handbook 135 and...

  14. Critical Factors Driving the High Volumetric Uptake of Methane...

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

    Critical Factors Driving the High Volumetric Uptake of Methane in Cu-3(btc)(2) Previous Next List Hulvey, Zeric; Vlaisavljevich, Bess; Mason, Jarad A.; Tsivion, Ehud; Dougherty,...

  15. Brain-derived neurotrophic factor rescues synaptic plasticity in a mouse model of fragile X syndrome.

    E-Print Network [OSTI]

    2007-01-01

    in mice lacking brain- derived neurotrophic factor. Procterm potentiation by brain- derived neurotrophic factor. JCM, Simmons DA (2007b) Brain-derived neurotrophic factor

  16. Applying Human Factors to the Design of Performance Tools

    E-Print Network [OSTI]

    Pancake, Cherri M.

    Applying Human Factors to the Design of Performance Tools Cherri M. Pancake Oregon State University Abstract. After two decades of research in parallel tools for perfor- mance tuning, why are users still dissatis ed? This paper outlines the human factors issues that determine how performance tools

  17. Factors influencing digital technology use in early childhood education

    E-Print Network [OSTI]

    Shahriar, Selim

    Factors influencing digital technology use in early childhood education Courtney K. Blackwell extrinsic and intrinsic factors that influence early childhood educators' digital technology use. Survey data from 1234 early childhood educators indicate that attitudes toward the value of technology to aid

  18. Matrix Factorizations for Information Retrieval Dianne P. O'Leary

    E-Print Network [OSTI]

    O'Leary, Dianne P.

    Matrix Factorizations for Information Retrieval Dianne P. O'Leary Computer Science Dept that is predominantly linear algebra · Conclusions A Catalog of Matrix Factorizations c 2006 Dianne P. O'Leary 1 or oscillation · understanding Markov chains c 2006 Dianne P. O'Leary 2 University of Maryland, College Park #12

  19. Scaling factor inconsistencies in neutrinoless double beta decay

    SciTech Connect (OSTI)

    Cowell, S. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2006-02-15

    The modern theory of neutrinoless double beta decay includes a scaling factor that has often been treated inconsistently in the literature. The nuclear contribution to the decay half-life can be suppressed by 15%-20% when scaling factors are mismatched. Correspondingly, is overestimated.

  20. Scaling Factor Inconsistencies in Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    S. Cowell

    2005-12-05

    The modern theory of neutrinoless double beta decay includes a scaling factor that has often been treated inconsistently in the literature. The nuclear contribution to the decay half life can be suppressed by 15-20% when scaling factors are mismatched. Correspondingly, $$ is overestimated.

  1. Journal Diffusion Factors a measure of diffusion? Tove Faber Frandsen

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Journal Diffusion Factors ­ a measure of diffusion? Tove Faber Frandsen Royal School of Library In this paper we show that the measure of diffusion introduced by Ian Rowlands called the Journal Diffusion Factor (JDF) is highly negatively correlated with the number of citations, leading highly cited journals

  2. The Multivariate Merit Factor of a Boolean T. Aaron Gulliver

    E-Print Network [OSTI]

    Parker, Matthew Geoffrey

    The Multivariate Merit Factor of a Boolean Function T. Aaron Gulliver Dept. of Electrical metric, the multivariate merit factor (MMF) of a Boolean function, is presented, and various infinite recursive quadratic sequence constructions are given for which both uni­ variate and multivariate merit

  3. Implementing the Elliptic Curve Method of Factoring in Reconfigurable Hardware

    E-Print Network [OSTI]

    Gaj, Krzysztof

    Bachimanchi1 1 Dept. of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030-exponential factoring algorithm, with expected run time of O(exp(c log p log log p) M(N)) where c > 0, p is a factor we aim to find, and M(N) denotes the cost of multiplication (mod N). ECM is the best method to perform

  4. A Parallel Jacobi Method for the Takagi Factorization Xiaohong Wang

    E-Print Network [OSTI]

    Qiao, Sanzheng

    A Parallel Jacobi Method for the Takagi Factorization Xiaohong Wang Department of Computing-symmetric matrix. We present a multthreading parallel Jacobi algorithm for computing the Takagi factorization Jacobi method, Multithreading. 1 Introduction A matrix A of order n is symmetric if A = A T . When

  5. A Two-factor Authentication Mechanism Using Mobile Phones

    E-Print Network [OSTI]

    -03 Last Modification Date: 2008/08/20 Abstract Mobile devices are becoming more pervasive and more of mobile devices to provide a two-factor authentication method. Our approach uses a combination of one-time passwords, as the first authentication factor, and credentials stored on a mobile device, as the second

  6. FACTORS AFFECTING EXVESSEL PRICES OF SKIPJACK TUNA IN HAWAII

    E-Print Network [OSTI]

    FACTORS AFFECTING EXVESSEL PRICES OF SKIPJACK TUNA IN HAWAII Yung C . Shang The skipj ack -tuna to overfishing. On the other hand, the cost-revenue analysis indicates that, given the past input and tuna prices objective of this paper is to exam- ine the factors affecting the prices of skipj ack tuna. Skipjack

  7. Wildland fire emissions, carbon, and climate: Emission factors Shawn Urbanski

    E-Print Network [OSTI]

    Wildland fire emissions, carbon, and climate: Emission factors Shawn Urbanski Missoula Fire burning Greenhouse gases Emission factors a b s t r a c t While the vast majority of carbon emitted mixture of gases and aerosols. Primary emissions include sig- nificant amounts of CH4 and aerosol (organic

  8. Model Order Selection for Boolean Matrix Factorization Pauli Miettinen

    E-Print Network [OSTI]

    Waldmann, Uwe

    Science Universiteit Antwerpen, Belgium jilles.vreeken@ua.ac.be ABSTRACT Matrix factorizations--where a given data matrix is approximated by a product of two or more factor matrices--are powerful data mining the data mining community in recent years. The technique has desirable properties, such as high

  9. Environmental Factors Affecting Situation Awareness in Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Scerri, Paul

    Environmental Factors Affecting Situation Awareness in Unmanned Aerial Vehicles Prasanna Velagapudi in the application of unmanned aerial systems to a wide variety of problems. One particular class of vehicle that has of unmanned vehicles. One such factor is the physical proximity of operators to the vehicle during deployment

  10. Optimizing Thermoelectric Power Factor by Means of a Potential Barrier

    E-Print Network [OSTI]

    1 Optimizing Thermoelectric Power Factor by Means of a Potential Barrier Neophytos Neophytou}@iue.tuwien.ac.at Abstract Large efforts in improving thermoelectric energy conversion are devoted to energy filtering design, ~40% improvement in the thermoelectric power factor can be achieved if the following conditions

  11. Gray, W. D. (2003). Cognitive factors in homeland defense: The role of human factors in the novel intelligence from massive data (NIMD) project, Human Factors and Ergonomics Society (pp. 1017-1018). Santa Monica, CA: Human

    E-Print Network [OSTI]

    Gray, Wayne

    2003-01-01

    intelligence from massive data (NIMD) project, Human Factors and Ergonomics Society (pp. 1017-1018). Santa Monica, CA: Human Factors and Ergonomics Society. COGNITIVE FACTORS IN HOMELAND DEFENSE: THE ROLE

  12. Photon impact factor and k{sub T}-factorization for DIS in the next-to-leading order

    SciTech Connect (OSTI)

    Ian Balitsky, Giovanni Chirilli

    2013-01-01

    The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as an NLO k{sub T}-factorization formula for structure functions of small-x deep inelastic scattering.

  13. Investigating the roles of translation elongation factor 1B in mammalian cells 

    E-Print Network [OSTI]

    Cao, Yuan

    2012-11-30

    Eukaryotic protein translation elongation is tightly controlled by several regulation factors. Eukaryotic translation elongation factor 1B (eEF1B) is the GTP exchange factor for eukaryotic translation elongation factor ...

  14. Calculation of extremity neutron fluence-to-dose equivalent conversion factors 

    E-Print Network [OSTI]

    Wood-Zika, Annmarie Ruth

    1997-01-01

    -to-dose equivalent conversion factors to Los Alamos National Laboratory extremity dosimeter correction factors is performed....

  15. Lifestyle Factors in U.S. Residential Electricity Consumption

    SciTech Connect (OSTI)

    Sanquist, Thomas F.; Orr, Heather M.; Shui, Bin; Bittner, Alvah C.

    2012-03-30

    A multivariate statistical approach to lifestyle analysis of residential electricity consumption is described and illustrated. Factor analysis of selected variables from the 2005 U.S. Residential Energy Consumption Survey (RECS) identified five lifestyle factors reflecting social and behavioral choices associated with air conditioning, laundry usage, personal computer usage, climate zone of residence, and TV use. These factors were also estimated for 2001 RECS data. Multiple regression analysis using the lifestyle factors yields solutions accounting for approximately 40% of the variance in electricity consumption for both years. By adding the associated household and market characteristics of income, local electricity price and access to natural gas, variance accounted for is increased to approximately 54%. Income contributed only {approx}1% unique variance to the 2005 and 2001 models, indicating that lifestyle factors reflecting social and behavioral choices better account for consumption differences than income. This was not surprising given the 4-fold range of energy use at differing income levels. Geographic segmentation of factor scores is illustrated, and shows distinct clusters of consumption and lifestyle factors, particularly in suburban locations. The implications for tailored policy and planning interventions are discussed in relation to lifestyle issues.

  16. Offer Negotiations Worksheet Multiply the weight for each factor times the rating for each employer in meeting that factor, and then total

    E-Print Network [OSTI]

    Offer Negotiations Worksheet Multiply the weight for each factor times the rating for each employer in meeting that factor, and then total the scores to help evaluate each offer. FACTORS & (weights) EMPLOYER 1

  17. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY)

    2012-04-24

    The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  18. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY)

    2009-10-06

    The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  19. Speaker and Expression Factorization for Audiobook Data: Expressiveness and Transplantation

    E-Print Network [OSTI]

    Chen, Langzhou; Braunschweiler, Norbert; Gales, Mark J. F.

    2014-12-23

    the problem mentioned above, the factorization techniques were adopted to factorize a complex acoustic condition into several independent factors, i.e. ?(s,e) =?(s)S ? ?(e)E (2) where ?(s)S and ? (e) E are the independent transforms for speaker... was created representing the expressive infor- mation in an utterance. The feature vector includes various expression related features, e.g. mean of F0, voicing probabil- ity (pv), local jitter and shimmer, logarithmic HNR, standard deviation of F0 and mean...

  20. Direct capture astrophysical S factors at low energy

    E-Print Network [OSTI]

    B. K. Jennings; S. Karataglidis; T. D. Shoppa

    1998-04-14

    We investigate the energy dependence of the astrophysical S factors for the reactions 7Be(p,gamma)8B, the primary source of high-energy solar neutrinos in the solar pp chain, and 16O(p,gamma)17F, an important reaction in the CNO cycle. Both of these reactions have predicted S factors which rise at low energies; we find the source of this behavior to be a pole in the S factor at a center-of-mass energy E = -E_B, the point where the energy of the emitted photon vanishes. The pole arises from a divergence of the radial integrals.

  1. The structure of the nucleon: Elastic electromagnetic form factors

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

    Punjabi, V.; Perdrisat, C. F.; Jones, M. K.; Brash, E. J.; Carlson, C. E.

    2015-07-10

    Precise proton and neutron form factor measurements at Jefferson Lab, using spin observables, have recently made a significant contribution to the unraveling of the internal structure of the nucleon. Accurate experimental measurements of the nucleon form factors are a test-bed for understanding how the nucleon's static properties and dynamical behavior emerge from QCD, the theory of the strong interactions between quarks. There has been enormous theoretical progress, since the publication of the Jefferson Lab proton form factor ratio data, aiming at reevaluating the picture of the nucleon. We will review the experimental and theoretical developments in this field and discussmore »the outlook for the future.« less

  2. Nucleon and flavor form factors in AdS/QCD

    E-Print Network [OSTI]

    Chakrabarti, Dipankar

    2013-01-01

    The electromagnetic form factors for the nucleons are related with the GPDs by sum rules. Using the sum rules we calculate the valence GPDs for $u$ and $d$ quarks in a quark model using the lightfront wavefunctions for the nucleons obtained from AdS/QCD. The flavor decompositions of the nucleon form factors are also calculated from the GPDs in this model. We show that the nucleon form factors and their flavor decompositions calculated in AdS/QCD are in agreement with experimental data.

  3. Isospin Violation and the Proton's Strange Form Factors

    E-Print Network [OSTI]

    Randy Lewis; Nader Mobed

    1999-10-22

    The strange form factors of the proton are basic to an understanding of proton structure, and are presently the focus of many experiments. Before the strangeness effects can be extracted from data, it is necessary to calculate and remove effects due to isospin violation, which exist independently of the strange quark but which contribute nevertheless to the experimentally measured ``strange'' form factors. A discussion of the isospin violating contributions to vector form factors is given here in the context of heavy baryon chiral perturbation theory.

  4. Twisted mass QCD for the pion electromagnetic form factor

    E-Print Network [OSTI]

    Abdou M. Abdel-Rehim; Randy Lewis

    2004-10-27

    The pion form factor is computed using quenched twisted mass QCD and the GMRES-DR matrix inverter. The momentum averaging procedure of Frezzotti and Rossi is used to remove leading lattice spacing artifacts, and numerical results for the form factor show the expected improvement with respect to the standard Wilson action. Although some matrix inverters are known to fail when applied to twisted mass QCD, GMRES-DR is found to be a viable and powerful option. Results obtained for the pion form factor are consistent with the published results from other O(a) improved actions and are also consistent with the available experimental data.

  5. Conditioning analysis of incomplete Cholesky factorizations with orthogonal dropping

    SciTech Connect (OSTI)

    Napov, Artem

    2012-03-16

    The analysis of preconditioners based on incomplete Cholesky factorization in which the neglected (dropped) components are orthogonal to the approximations being kept is presented. General estimate for the condition number of the preconditioned system is given which only depends on the accuracy of individual approximations. The estimate is further improved if, for instance, only the newly computed rows of the factor are modified during each approximation step. In this latter case it is further shown to be sharp. The analysis is illustrated with some existing factorizations in the context of discretized elliptic partial differential equations.

  6. Sample size in factor analysis: The role of model error

    E-Print Network [OSTI]

    MacCallum, R. C.; Widaman, K. F.; Preacher, Kristopher J.; Hong, Sehee

    2001-01-01

    Equation 1: (2) H9018 yy = H9011H9021H9011H11032 + H9008 2 where H9018 yy is the p ? p population covariance matrix for the measured variables and H9021 is the r ? r population correlation matrix for the common factors (assuming factors are standardized... in the population). This is the standard version of the common factor model for a population covariance matrix. Following similar algebraic procedures, we could derive a structure for a sample covariance matrix, C yy . However, in such a derivation we can...

  7. Dropout Risk Factors by School Level Hammond, C., Smink, J., & Drew, S. (2007). Dropout risk factors and exemplary programs: A technical report, pg. 6. Retrieved from

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    2007-01-01

    factors and exemplary programs: A technical report, pg. 6. Retrieved from www.dropoutprevention.org/major-research-reports/dropout-risk-factors-exemplary-programs-technical-report

  8. FACTORS INFLUENCING THE IMPLEMENTATION OF TECHNOLOGY IN THE MUSIC CLASSROOM

    E-Print Network [OSTI]

    Agnew, Shawn M.

    2009-06-26

    The purpose of this study was to examine what factors influence the implementation of technology in the music classroom. Thirty-one Kansas Music Teachers (n=31) completed a web-based survey about technology in the music classroom regarding...

  9. Acoustic inverse scattering via Helmholtz operator factorization and ...

    E-Print Network [OSTI]

    Shen Wang

    2010-09-01

    Aug 2, 2010 ... requirements through compression, to yield a complexity for ... 3, representing Earth's subsurface, while accounting for the broad bandwidth of the avail- ..... of dense block matrix operations in factorizing sparse problems, and ...

  10. Neural Network Parameterizations of Electromagnetic Nucleon Form Factors

    E-Print Network [OSTI]

    Krzysztof M. Graczyk; Piotr Plonski; Robert Sulej

    2010-08-25

    The electromagnetic nucleon form-factors data are studied with artificial feed forward neural networks. As a result the unbiased model-independent form-factor parametrizations are evaluated together with uncertainties. The Bayesian approach for the neural networks is adapted for chi2 error-like function and applied to the data analysis. The sequence of the feed forward neural networks with one hidden layer of units is considered. The given neural network represents a particular form-factor parametrization. The so-called evidence (the measure of how much the data favor given statistical model) is computed with the Bayesian framework and it is used to determine the best form factor parametrization.

  11. Solar Correction Factors of Building Envelope in Tebei 

    E-Print Network [OSTI]

    Wang, D.; Tang, M.

    2006-01-01

    Tebei has very rich solar energy in China and needs heating in winter,but the present energy building design code has no solar correction factor for the overall heat transfer coefficient of building envelope for Tebei. ...

  12. Separability and ground state factorization in quantum spin systems

    E-Print Network [OSTI]

    Giampaolo, S M; Illuminati, F

    2009-01-01

    We investigate the existence and the properties of fully separable (fully factorized) ground states in quantum spin systems. Exploiting techniques of quantum information and entanglement theory we extend a recently introduced method and construct a general, self-contained theory of ground state factorization in frustration-free quantum spin models defined on lattices in any spatial dimension and for interactions of arbitrary range. We show that, quite generally, non exactly solvable models in external field admit exact, fully factorized ground state solutions. Unentangled ground states occur at finite values of the Hamiltonian parameters satisfying well defined balancing conditions between external fields and interaction strengths. These conditions are analytically determined together with the type of magnetic orderings compatible with factorization and the corresponding values of the fundamental observables such as energy and magnetization. The method is applied to a series of examples of increasing complexi...

  13. DeterminingEGRET's EfficiencyScalingFactors 1 Introduction

    E-Print Network [OSTI]

    Strong, Andrew W.

    DeterminingEGRET's EfficiencyScalingFactors 1 Introduction The efficiencyof EGRET changedthroughout procedurewas needed to be able to track the efficienciesof the standard energyinterval to very low levels

  14. Geography: Critical Factors in the Analysis of Complex Systems

    E-Print Network [OSTI]

    Welch, Ivan

    2012-05-31

    is needed for a systematic study of geostrategic issues for the purposes of policy making and strategic planning. Geographic scale, its impact on human action and incorporation into human culture, is pervasive. These factors of geography and their variables...

  15. Flavor decomposition of the elastic nucleon electromagnetic form factors

    SciTech Connect (OSTI)

    C.D. Cates, C.W. Jager, S. Riordan, B. Wojtsekhowski

    2011-06-01

    The u- and d-quark contributions to the elastic nucleon electromagnetic form factors have been determined using experimental data on GEn , GMn , GpE , and GpM . Such a flavor separation of the form factors became possible up to 3.4 GeV2 with recent data on GEn from Hall A at JLab. At a negative four-momentum transfer squared Q2 above 1 GeV2, for both the u- and d-quark components, the ratio of the Pauli form factor to the Dirac form factor, F2/F1, was found to be almost constant, and for each of F2 and F1 individually, the d-quark component drops continuously with increasing Q2.

  16. Light, Nearwork, and Visual Environment Risk Factors in Myopia

    E-Print Network [OSTI]

    Alvarez, Amanda Aleksandra

    2012-01-01

    of time outdoors and light levels as risk factors for myopiaH. C. (1995). Constant light produces severe cornealNg, H. , & Phillips, J. (2011) Light exposure patterns in

  17. Factors influencing German private equity investment in US real estate

    E-Print Network [OSTI]

    Paelmo, Kay L. (Kay Lee), 1977-

    2003-01-01

    This thesis identifies and ranks in order of importance the key factors influencing high net-worth German investors' decisions about US real estate private equity investments. Through research and in-depth interviews with ...

  18. Characterizing and engineering antibodies against the epidermal growth factor receptor

    E-Print Network [OSTI]

    Chao, Ginger

    2008-01-01

    Epidermal growth factor receptor (EGFR) signaling leads to cellular proliferation and migration, and thus EGFR dysregulation can significantly contribute to the survival of tumor cells. Aberrant EGFR signaling due to ...

  19. EVALUATING NATIONAL ENVIRONMENTAL SUSTAINABILITY: PERFORMANCE MEASURES AND INFLUENTIAL FACTORS FOR

    E-Print Network [OSTI]

    components factor analysis to help build subindices measuring waste and pollution, sustainable energy, sustainable food, nature conservation, and sustainable cities (Due to its current importance, the greenhouse development, industrial structure, energy prices, environmental governance, pollution abatement and control

  20. Key Factors in Displacement Ventilation Systems for Better IAQ 

    E-Print Network [OSTI]

    Wang, X.; Chen, J.; Li, Y.; Wang, Z.

    2006-01-01

    This paper sets up a mathematical model of three-dimensional steady turbulence heat transfer in an air-conditioned room of multi-polluting heat sources. Numerical simulation helps identify key factors in displacement ventilation systems that affect...

  1. Campus Environmental Factors Influencing Student Leadership Development and Civic Engagement 

    E-Print Network [OSTI]

    Boren, Laura

    2012-02-14

    community member and local community member was an environmental factor influencing participants’ commitment to civic engagement. Participants who were engaged in their personal cultural heritage articulated a deeper understanding of leadership and had a...

  2. Human factors survey of advanced instrumentation and controls

    SciTech Connect (OSTI)

    Carter, R.J.

    1989-01-01

    A survey oriented towards identifying the human factors issues in regard to the use of advanced instrumentation and controls (I C) in the nuclear industry was conducted. A number of United States (US) and Canadian nuclear vendors and utilities were participants in the survey. Human factors items, subsumed under the categories of computer-generated displays (CGD), controls, organizational support, training, and related topics, were discussed. The survey found the industry to be concerned about the human factors issues related to the implementation of advanced I C. Fifteen potential human factors problems were identified. They include: the need for an advanced I C guideline equivalent to NUREG-0700; a role change in the control room from operator to supervisor; information overload; adequacy of existing training technology for advanced I C; and operator acceptance and trust. 11 refs., 1 tab.

  3. Recent and Future Measurements of the Neutron Electric Form Factor

    E-Print Network [OSTI]

    Andrei Semenov

    2010-08-18

    I review recently conducted measurements of $\\gen$ as well as precision form factor experiments at high momentum transfer that will be performed with the 11 GeV electron beam at Jefferson Lab.

  4. Variable Frequency Motor Drives: Harmonics, Power Factor, and Energy Efficiency 

    E-Print Network [OSTI]

    Massey, G. W.

    1997-01-01

    harmonics and power factor. NOTE: The views expressed in this paper do not necessarily represent the views of the United States of America, the U.S. Department of Justice, or the Federal Bureau of Prisons....

  5. On the Consistency of QCBED Structure Factor Measurements for...

    Office of Scientific and Technical Information (OSTI)

    for bond-charge mapping. The standard deviation in the resulting distribution of derived X-ray structure factors is found to be an order of magnitude smaller than that in...

  6. Charm and bottom hadronic form factors with QCD sum rules

    SciTech Connect (OSTI)

    Bracco, M. E.; Rodrigues, B. O.; Cerqueira, A. Jr.

    2013-03-25

    We present a brief review of some calculations of form factors and coupling constants in vertices with charm and bottom mesons in the framework of QCD sum rules. We first discuss the motivation for this work, describing possible applications of these form factors to charm and bottom decays processes. We first make a summarize of the QCD sum rules method. We give special attention to the uncertainties of the method introducing by the intrinsic variation of the parameters. Finally we conclude.

  7. Factor Demand Linkages, Technology Shocks and the Business Cycle

    E-Print Network [OSTI]

    Holly, Sean; Petrella, I

    . In this paper we consider the implications of factor demand linkages for the econometric analysis of the e¤ect of technology shocks on hours. A contemporaneous technology shock to all sectors in manufacturing then implies a positive aggregate response in both... output and hours. The positive aggregate response is directly related to the role of factor demand linkages in the transmission of shocks. When sectoral interactions are ignored we ?nd a negative correlation as with much of the literature. This 4 suggests...

  8. Electromagnetic deuteron form factors in point form relativistic quantum mechanics

    E-Print Network [OSTI]

    N. A. Khokhlov

    2015-03-10

    A study of electromagnetic structure of the deuteron in the framework of relativistic quantum mechanics is presented. The deuteron form factors dependencies on the transferred 4-momentum Q are calculated. We compare results obtained with different realistic deuteron wave functions stemming from Nijmegen-I, Nijmegen-II, JISP16, CD-Bonn, Paris and Moscow (with forbidden states) potentials. A nucleon form factor parametrization consistent with modern experimental analysis was used as an input data.

  9. Bounding the greybody factors for Schwarzschild black holes

    E-Print Network [OSTI]

    Boonserm, Petarpa

    2008-01-01

    Greybody factors in black hole physics modify the naive Planckian spectrum that is predicted for Hawking radiation when working in the limit of geometrical optics. We consider the Schwarzschild geometry in (3+1) dimensions, and analyze the Regge-Wheeler equation for arbitrary particle spin S and wave-mode angular momentum L, deriving rigourous bounds on the greybody factors as a function of S, L, wave frequency (omega), and the black hole mass, m.

  10. Nuclear mass form factors from coherent photoproduction of $?^0$ mesons

    E-Print Network [OSTI]

    B. Krusche

    2005-09-01

    Data for coherent photoproduction of $\\pi^0$ mesons from nuclei ($^{12}$C, $^{40}$Ca, $^{93}$Nb, $^{nat}$Pb), recently measured with the TAPS detector at the Mainz MAMI accelerator, have been analyzed in view of the mass form factors of the nuclei. The form factors have been extracted in plane wave approximation of the $A(\\gamma ,\\pi^0)A$ reaction and corrected for final state interaction effects with the help of distorted wave impulse approximations. Nuclear mass rms-radii have been calculated from the slope of the form factors for $q^2\\to 0$. Furthermore, the Helm model (hard sphere form factor folded with Gaussian) was used to extract diffraction radii from the zeroes of the form factor and skin thicknesses from the position and height of its first maximum. The diffraction radii from the Helm model agree with the corresponding charge radii obtained from electron scattering experiments within their uncertainties of a few per cent. The rms-radii from the slope of the form factors are systematically lower by up to 5% for PWIA and up to 10% for DWIA. Also the skin thicknesses extracted from the Helm model are systematically smaller than their charge counter parts.

  11. Separability and ground state factorization in quantum spin systems

    E-Print Network [OSTI]

    S. M. Giampaolo; G. Adesso; F. Illuminati

    2009-06-04

    We investigate the existence and the properties of fully separable (fully factorized) ground states in quantum spin systems. Exploiting techniques of quantum information and entanglement theory we extend a recently introduced method and construct a general, self-contained theory of ground state factorization in frustration free quantum spin models defined on lattices in any spatial dimension and for interactions of arbitrary range. We show that, quite generally, non exactly solvable translationally invariant models in presence of an external uniform magnetic field can admit exact, fully factorized ground state solutions. Unentangled ground states occur at finite values of the Hamiltonian parameters satisfying well defined balancing conditions between the applied field and the interaction strengths. These conditions are analytically determined together with the type of magnetic orderings compatible with factorization and the corresponding values of the fundamental observables such as energy and magnetization. The method is applied to a series of examples of increasing complexity, including translationally-invariant models with short, long, and infinite ranges of interaction, as well as systems with spatial anisotropies, in low and higher dimensions. We also illustrate how the general method, besides yielding a large series of novel exact results for complex models in any dimension, recovers, as particular cases, the results previously achieved on simple models in low dimensions exploiting direct methods based on factorized mean-field ansatz.

  12. Elastic enhancement factor as a quantum chaos probe

    E-Print Network [OSTI]

    Kharkov, Yaroslav A

    2012-01-01

    Recent development of the resonance scattering theory with a transient from the regular to chaotic internal dynamics inspires renewed interest to the problem of the elastic enhancement phenomenon. We reexamine the question what the experimentally observed value of the elastic enhancement factor can tell us about the character of dynamics of the intermediate system. Noting first a remarkable connection of this factor with the time delays variance in the case of the standard Gaussian ensembles we then prove the universal nature of such a relation. This reduces our problem to that of calculation of the Dyson's binary form factor in the whole transition region. By the example of systems with no time-reversal symmetry we then demonstrate that the enhancement can serve as a measure of the degree of internal chaos.

  13. Elastic enhancement factor as a quantum chaos probe

    E-Print Network [OSTI]

    Yaroslav A. Kharkov; Valentin V. Sokolov

    2012-12-30

    Recent development of the resonance scattering theory with a transient from the regular to chaotic internal dynamics inspires renewed interest to the problem of the elastic enhancement phenomenon. We reexamine the question what the experimentally observed value of the elastic enhancement factor can tell us about the character of dynamics of the intermediate system. Noting first a remarkable connection of this factor with the time delays variance in the case of the standard Gaussian ensembles we then prove the universal nature of such a relation. This reduces our problem to that of calculation of the Dyson's binary form factor in the whole transition region. By the example of systems with no time-reversal symmetry we then demonstrate that the enhancement can serve as a measure of the degree of internal chaos.

  14. Selection of powder factor in large diameter blastholes

    SciTech Connect (OSTI)

    Eloranta, J.

    1995-12-31

    This paper documents the relationship between material handling and processing costs compared to blasting cost. The old adage, The cheapest crushing is done in the pit, appears accurate in this case study. Comparison of the accumulated cost of: powder, selected wear materials and electricity; indicate a strong, inverse correlation with powder factor (lbs powder/long ton of rock). In this case, the increased powder cost is more than offset by electrical savings alone. Measurable, overall costs decline while shovel and crusher productivity rise by about 5% when powder factor rises by 15%. These trends were previously masked by the effects of: weather, ore grade fluctuations and accounting practices. Attempts to correlate increased powder factor to: wear materials in the crushing plant and to shovel hoist rope life have not shown the same benefit.

  15. Kaon semileptonic decay form factors with HISQ valence quarks

    E-Print Network [OSTI]

    E. Gamiz; J. A. Bailey; A. Bazavov; C. Bernard; C. Bouchard; C. DeTar; D. Du; A. X. El-Khadra; J. Foley; E. D. Freeland; Steven Gottlieb; U. M. Heller; J. Kim; A. S. Kronfeld; J. Laiho; L. Levkova; P. B. Mackenzie; E. T. Neil; M. B. Oktay; Si-Wei Qiu; J. N. Simone; R. Sugar; D. Toussaint; R. S. Van de Water; R. Zhou

    2012-11-05

    We report on the status of our kaon semileptonic form factor calculations using the highly-improved staggered quark (HISQ) formulation to simulate the valence fermions. We present results for the form factor f_+^{K \\pi}(0) on the asqtad N_f=2+1 MILC configurations, discuss the chiral-continuum extrapolation, and give a preliminary estimate of the total error. We also present a more preliminary set of results for the same form factor but with the sea quarks also simulated with the HISQ action; these results include data at the physical light quark masses. The improvements that we expect to achieve with the use of the HISQ configurations and simulations at the physical quark masses are briefly discussed.

  16. The Proton Form Factor Ratio Measurements at Jefferson Lab

    SciTech Connect (OSTI)

    Punjabi, Vina A. [Norfolk State University, Norfolk, VA (United States); Perdrisat, Charles F. [William and Mary College, Williamsburg, VA (United States)

    2014-03-01

    The ratio of the proton form factors, G{sub Ep}/G{sub Mp}, has been measured from Q{sup 2} of 0.5 GeV{sup 2} to 8.5 GeV{sup 2}, at the Jefferson Laboratory, using the polarization transfer method. This ratio is extracted directly from the measured ratio of the transverse and longitudinal polarization components of the recoiling proton in elastic electron-proton scattering. The discovery that the proton form factor ratio measured in these experiments decreases approximately linearly with four-momentum transfer, Q{sup 2}, for values above #25;~1 GeV{sup 2}, is one of the most significant results to come out of JLab. These results have had a large impact on progress in hadronic physics; and have required a significant rethinking of nucleon structure. The increasingly common use of the double-polarization technique to measure the nucleon form factors, in the last 15 years, has resulted in a dramatic improvement of the quality of all four nucleon electromagnetic form factors, G{sub Ep}, G{sub Mp}, G{sub En} and G{sub Mn}. There is an approved experiment at JLab, GEP(V), to continue the ratio measurements to 12 GeV{sup 2}. A dedicated experimental setup, the Super Bigbite Spectrometer (SBS), will be built for this purpose. It will be equipped with a focal plane polarimeter to measure the polarization of the recoil protons. The scattered electrons will be detected in an electromagnetic calorimeter. In this presentation, I will review the status of the proton elastic electromagnetic form factors and discuss a number of theoretical approaches to describe nucleon form factors.

  17. Chaos driven fusion enhancement factor at astrophysical energies

    E-Print Network [OSTI]

    Sachie Kimura; Aldo Bonasera

    2004-09-02

    We perform molecular dynamics simulations to assess the screening effects by bound target electrons in low energy nuclear reactions in laboratories. Quantum effects corresponding to the Pauli and Heisenberg principle are enforced by constraints. We show that the enhancement of the average cross section and of its variance is due to the perturbations induced by the electrons.This gives a correlation between the maximum amplitudes of the inter-nuclear oscillational motion and the enhancement factor. It suggests that the chaotic behavior of the electronic motion affects the magnitude of the enhancement factor.

  18. An iterative technique for the factorization of polynomials 

    E-Print Network [OSTI]

    Gray, Jerry Edwin

    1964-01-01

    is the complex field. The Kaczmarz Method is used for the solution of systems of simul- taneous linear equations. This method is used since the Kaczmarz Method seems well adapted to the complex field. Suppose we let n f(z) = E a z I-o be a polynomial in z... of degree n with a = 1. To obtain a factor of f (z) 0 of fixed degree m, where 1 ( m & n, we first arbitrarily choose a trial factor m g(z)= E pz i=o with p = 1. By the Method of Luther we iterate on tl. e set of numbers 0 p, 2 & I & m. The Kaczmarz...

  19. Greybody factors for Myers–Perry black holes

    SciTech Connect (OSTI)

    Boonserm, Petarpa; Chatrabhuti, Auttakit Ngampitipan, Tritos; Visser, Matt

    2014-11-15

    The Myers–Perry black holes are higher-dimensional generalizations of the usual (3+1)-dimensional rotating Kerr black hole. They are of considerable interest in Kaluza–Klein models, specifically within the context of brane-world versions thereof. In the present article, we shall consider the greybody factors associated with scalar field excitations of the Myers–Perry spacetimes, and develop some rigorous bounds on these greybody factors. These bounds are of relevance for characterizing both the higher-dimensional Hawking radiation, and the super-radiance, that is expected for these spacetimes.

  20. Greybody factors for Myers-Perry black holes

    E-Print Network [OSTI]

    Boonserm, Petarpa; Ngampitipan, Tritos; Visser, Matt

    2014-01-01

    The Myers-Perry black holes are higher-dimensional generalizations of the usual (3+1)-dimensional rotating Kerr black hole. They are of considerable interest in Kaluza-Klein models, specifically within the context of brane-world versions thereof. In the present article we shall consider the greybody factors associated with scalar field excitations of the Myers-Perry spacetimes, and develop some rigorous bounds on these greybody factors. These bounds are of relevance for characterizing both the higher-dimensional Hawking radiation, and the super-radiance, that is expected for these spacetimes.

  1. Neutron charge form factor at large $q^2$

    E-Print Network [OSTI]

    R. Schiavilla; I. Sick

    2001-07-06

    The neutron charge form factor $G_{En}(q)$ is determined from an analysis of the deuteron quadrupole form factor $F_{C2}$ data. Recent calculations, based on a variety of different model interactions and currents, indicate that the contributions associated with the uncertain two-body operators of shorter range are relatively small for $F_{C2}$, even at large momentum transfer $q$. Hence, $G_{En}(q)$ can be extracted from $F_{C2}$ at large $q^2$ without undue systematic uncertainties from theory.

  2. Characterization of Two Sigma Factors in Plant Pathogenesis by Pseudomonas syringae pv. syringae B728a 

    E-Print Network [OSTI]

    Basu Thakur, Poulami

    2012-07-11

    function (ECF) sigma (?) factors serve as important regulatory factors in responding to various environmental signals. Bioinformatic analysis of the B728a genome has revealed 10 ECF sigma factors, five of which have high levels of sequence similarity...

  3. Is Serum Brain-Derived NeurotrophicFactor a Biomarker for Cognitive Enhancementin Schizophrenia?

    E-Print Network [OSTI]

    Vinogradov, Sophia

    2009-01-01

    S, Jones KR (2003): Brain-derived neuro- trophic factor ischemical study of brain-derived neurotrophic factor and itsP, et al. (2001): Brain-derived neurotrophic factor and

  4. Effects of glial cell line-derived neurotrophic factor on cultured murine retinal progenitor cells

    E-Print Network [OSTI]

    Wang, Jinmei; Yang, Jing; Gu, Ping; Klassen, Henry

    2010-01-01

    of glial cell line-derived neurotrophic factor (GDNF)F. GDNF: a glial cell line-derived neurotrophic factor forlevel glial cell line-derived neurotrophic factor delivery

  5. Human Factors Related to a Virtual Reality Surgical Simulator: The

    E-Print Network [OSTI]

    Bowden, Richard

    and therefore, reductions in patient intervention costs (Banta, 1993). #12; Human Factors Related to a Virtual Training System in the light of feedback from surgeons. Initial work to produce finite element models are displayed. The training system has been well received by the surgeons and represents a new and potentially

  6. Factors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    Factors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems Nael N. Zaki, Michael K to the petroleum industry. Nonaqueous foams occur in the production of and refining of crude oil. Crude oil foams can pose major problems for operators of gas/oil separation plants, causing a loss of crude

  7. UPDATING THE NRC GUIDANCE FOR HUMAN FACTORS ENGINEERING REVIEWS.

    SciTech Connect (OSTI)

    O HARA,J.M.; BROWN,W.S.; HIGGINS,J.C.; PERSENSKY,J.J.; LEWIS,P.M.; BONGARRA,J.

    2002-09-15

    The U.S. Nuclear Regulatory Commission (NRC) reviews the human factors engineering (HFE) aspects of nuclear plants. NUREG-0800 (Standard Review Plan), Chapter 18, ''Human Factors Engineering,'' is the principal NRC staff guidance document. Two main documents provide the review criteria to support the evaluations. The HFE Program Review Model (NUREG-0711) addresses the design process from planning to verification and validation to design implementation. The Human-System Interface Design Review Guidelines (NUREG-0700) provides the guidelines for the review of the HFE aspects of human-system interface technology, such as alarms, information systems, controls, and control room design. Since these documents were published in 1994 and 1996 respectively, they have been used by NRC staff, contractors, nuclear industry organizations, as well as by numerous organizations outside the nuclear industry. Using feedback from users and NRC research conducted in recent years, both documents have been revised and updated. This was done to ensure that they remain state-of-the-art evaluation tools for changing nuclear industry issues and emerging technologies. This paper describes the methodology used to revise and update the documents and summarizes the changes made to each and their current contents. Index Terms for this report are: Control system human factors, Ergonomics, Human factors, Nuclear power generation safety.

  8. Key Factors for Digital Collections August 7, 2007

    E-Print Network [OSTI]

    by Fondren's Digital Library Initiative We evaluate digital projects on a case by case basis. There is no oneKey Factors for Digital Collections August 7, 2007 Rice University Digital Repository Supported formula for this process and in fact welcome open discussion on potential digital projects

  9. CSEM WP 104 Variation of Distribution Factors with Loading

    E-Print Network [OSTI]

    California at Berkeley. University of

    on the topology of the electric power system, the behavior of controllable transmission system elements distribution factors depend on the operating point and topology of an electric power system. However right schemes for transmis- sion rights [4, 5], capacity to flow power on a line or a group of lines

  10. Variation of distribution factors with loading Ross Baldick

    E-Print Network [OSTI]

    Baldick, Ross

    of Texas at Austin. transmission rights [5], [6], capacity to flow power on a line or a group of lines factors depend on the op- erating point and topology of an electric power system. However, it is known) is the relative change in power flow on a particular line due to a change in injection and corresponding

  11. Mechanism Based Anticancer Drugs that Degrade Sp Transcription Factors 

    E-Print Network [OSTI]

    Chadalapaka, Gayathri

    2013-03-14

    4 transcription factors. Similar results were observed for a structurally-related triterpenoid, methyl 2-cyano-3,12-dioxooleana-1,9-dien-28-oate (CDDO-Me), which is currently in clinical trials for treatment of leukemia. Celastrol, a naturally...

  12. Evaluation of dietary factors associated with spontaneous pancreatitis in dogs 

    E-Print Network [OSTI]

    Lem, Kristina Yvonne

    2009-05-15

    ). Based on information extracted from the medical records, ingesting unusual food (OR=4.3; CI=1.7 to 10.7), ingesting table food (OR=1.5; CI=1.0 to 2.2), or exposure to both of these dietary factors (OR=2.1; CI=1.3 to 3.2) increased the odds...

  13. Algorithms, Initializations, and Convergence for the Nonnegative Matrix Factorization

    E-Print Network [OSTI]

    Kunkle, Tom

    . Langville , Carl D. Meyer , Russell Albright , James Cox , and David Duling Abstract It is well and NSF DMS 9714811. SAS Institute, Inc., Cary, NC 27513-2414, USA {russell.albright, james.cox, david factorization (NMF) algorithms [56]. Many NMF algorithms are sensitive with respect to the initialization of W

  14. PROJECT REPORT USING NEURAL NETWORKS FOR APPROXIMATE RADIOSITY FORM FACTOR

    E-Print Network [OSTI]

    Anderson, Charles W.

    PROJECT REPORT USING NEURAL NETWORKS FOR APPROXIMATE RADIOSITY FORM FACTOR COMPUTATION Submitted, between each pair of objects within the scene. This project report explores the use of neural networks.3 Approximation with Neural Networks : : : : : : : : : : : : : : : : : : : : : : : 2 1.4 Outline of Project Report

  15. Discovering Life Cycle Assessment Trees from Impact Factor Databases

    E-Print Network [OSTI]

    Ramakrishnan, Naren

    Discovering Life Cycle Assessment Trees from Impact Factor Databases Naren Sundaravaradan and degradation of the envi- ronment. Life cycle assessment (LCA) is a methodol- ogy for quantifying multiple to quantifying broad envi- ronmental impacts is the method of life cycle assessment (LCA) (Baumann and Tillman

  16. A PM10 emission factor for free stall dairies 

    E-Print Network [OSTI]

    Goodrich, Lee Barry

    2006-08-16

    was determined using the Coulter Counter Multisizer. The results of this process was a representative dairy PM PSD with 28% of TSP emissions being PM10. The reported PM10 24-hour emission factors were 4.7 kg/1000hd/day for the free-stall areas of the facility...

  17. MODIFIED SOLAR INSOLATION AS AN AGRONOMIC FACTOR IN TERRACED ENVIRONMENTS

    E-Print Network [OSTI]

    Evans, Tom

    of altitude, latitude, slope aspect, slope angle, and season. The net solar bene®t or cost from slope levelingMODIFIED SOLAR INSOLATION AS AN AGRONOMIC FACTOR IN TERRACED ENVIRONMENTS T. P. EVANS*1 AND B; Accepted 16 August 1999 ABSTRACT We present a model that calculates incident solar radiation falling

  18. Differentiation factors between free and premium among different cloud computing

    E-Print Network [OSTI]

    Vellekoop, Michel

    Differentiation factors between free and premium among different cloud computing services Author for consumers among various cloud computing services. The design is a comparative case study by which Spotify, Freemium, Differentiation, Cloud computing services Permission to make digital or hard copies of all

  19. "Humic Coverage Index" as a Determining Factor Governing

    E-Print Network [OSTI]

    Muzzio, Fernando J.

    "Humic Coverage Index" as a Determining Factor Governing Strain-Specific Hydrocarbon Availability, the "humic coverage index" (HCI), provides a measurement of the relative spatial extents and/or thicknesses to modeling biodegradation of aromatic and aliphatic hydrocarbons (phenanthrene, pyrene, and hexadecane

  20. Human Factors Evaluation of Advanced Electric Power Grid Visualization Tools

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Dauenhauer, Peter M.; Wierks, Tamara G.; Podmore, Robin

    2009-04-01

    This report describes initial human factors evaluation of four visualization tools (Graphical Contingency Analysis, Force Directed Graphs, Phasor State Estimator and Mode Meter/ Mode Shapes) developed by PNNL, and proposed test plans that may be implemented to evaluate their utility in scenario-based experiments.

  1. Is G a conversion factor or a fundamental unit?

    E-Print Network [OSTI]

    Fiorentini, G; Vysotsky, M I

    2001-01-01

    By using fundamental units c, h, G as conversion factors one can easily transform the dimensions of all observables. In particular one can make them all ``geometrical'', or dimensionless. However this has no impact on the fact that there are three fundamental units, G being one of them. Only experiment can tell us whether G is basically fundamental.

  2. Is G a conversion factor or a fundamental unit?

    E-Print Network [OSTI]

    G. Fiorentini; L. Okun; M. Vysotsky

    2001-12-04

    By using fundamental units c, h, G as conversion factors one can easily transform the dimensions of all observables. In particular one can make them all ``geometrical'', or dimensionless. However this has no impact on the fact that there are three fundamental units, G being one of them. Only experiment can tell us whether G is basically fundamental.

  3. The Areal Reduction Factor (ARF) : a multifractal analysis

    E-Print Network [OSTI]

    Langousis, Andreas, 1981-

    2005-01-01

    The Areal Reduction Factor (ARF) [eta] is a key parameter in the design for hydrologic extremes. For a basin of area A, [eta](A, D, 7) is the ratio between the area-average rainfall intensity over a duration D with return ...

  4. CODEBOOK-BASED SCALABLE MUSIC TAGGING WITH POISSON MATRIX FACTORIZATION

    E-Print Network [OSTI]

    Ellis, Dan

    CODEBOOK-BASED SCALABLE MUSIC TAGGING WITH POISSON MATRIX FACTORIZATION Dawen Liang, John Paisley Paisley, Daniel P. W. Ellis. Licensed under a Creative Commons Attribution 4.0 International Li- cense (CC BY 4.0). Attribution: Dawen Liang, John Paisley, Daniel P. W. Ellis. "Codebook-based scalable music

  5. DETERMINATION OF LOSS FACTORS IN A DEREGULATED SYSTEM Ashikur Bhuiya

    E-Print Network [OSTI]

    Saskatchewan, University of

    is computationally efficient and can be utilized to calculate the loss factors associated with the generators of the world electric utilities are facing the challenge of transformation - from regulated monopoly market plays the role of a supervisor for system planning and security. An ISO may also work as a spot market

  6. Source waters Several factors influence the selection of source

    E-Print Network [OSTI]

    1 Source waters Several factors influence the selection of source waters to feed desalination plants: the location of the plant in relation to water sources available, the deliv- ery destination of the treated water, the quality of the source water, the pretreatment options available, and the ecological

  7. Determining Factors Influencing Nuclear Envelope and Nuclear Pore Complex Structure. 

    E-Print Network [OSTI]

    Gouni, Sushanth

    2013-02-04

    properties and their effects in gpi1 mutants....?..?.??21 NPC interactions with the Proteasome...............................................................25 Clustering mutant interactions with rpt6................................................................26 Nuclear Transport factors interactions with rpt6...............................................27 GPI anchor pathway interactions with rpt6........................................................29 IV DISCUSSION...

  8. The social influence factor: Impact of online product review characteristics

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    The social influence factor: Impact of online product review characteristics on consumer purchasing of reviews and consumer purchasing decisions. The impact of online consumer reviews on consumer purchasing. The research challenge therefore entails review function characteristics and its impact on consumer purchasing

  9. Factors Affecting Web Page Similarity Anastasios Tombros and Zeeshan Ali

    E-Print Network [OSTI]

    Tombros, Tassos

    Factors Affecting Web Page Similarity Anastasios Tombros and Zeeshan Ali Department of Computer increasingly important on the Web. Sim- ilarity between web pages is a concept that is central to such tools. In this paper, we examine the effect that content and layout-related as- pects of web pages have on web page

  10. UMTS Capacity and Throughput Maximization for Different Spreading Factors

    E-Print Network [OSTI]

    Akl, Robert

    for signal-to-interference threshold from 5 dB to 10 dB and spreading factor values of 256, 64, 16, and 4 Erlang capacity based on the Lost Call Held (LCH) model as described in [4]. This algorithm calculates expression of Erlang capacity for a single type of traffic loading and compare analytical results

  11. An Improved Pseudorandom Generator Based on Hardness of Factoring

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    An Improved Pseudorandom Generator Based on Hardness of Factoring Nenad Dediâ??c Boston University@eecs.harvard.edu August 26, 2002 Abstract We present a simple to implement and e#cient pseudorandom generator based base and an exponent shorter than n/2 bits. Our generator is based on results by HÅ¡astad, Schrift

  12. An Improved Pseudorandom Generator Based on Hardness of Factoring

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    An Improved Pseudorandom Generator Based on Hardness of Factoring Nenad Dedi´c Boston University@eecs.harvard.edu August 26, 2002 Abstract We present a simple to implement and efficient pseudorandom generator based base and an exponent shorter than n/2 bits. Our generator is based on results by H°astad, Schrift

  13. Factor Xa Kits TB205 8/98 Novagen 1

    E-Print Network [OSTI]

    Lebendiker, Mario

    BACTM, the Novagen logo and name are trademarks of Novagen, Inc. CDP-Star is a trademark of and is manufactured Capture Kit is designed for highly specific cleavage of fusion proteins followed by convenient affinityDa. One unit of Factor Xa Protease cleaves 50 µg fusion protein in 16 h at 20°C in a buffer containing 50

  14. Tests for Overidentifying Restrictions in Factor-Augmented VAR Models

    E-Print Network [OSTI]

    Alexandrova, Ivana

    Tests for Overidentifying Restrictions in Factor-Augmented VAR Models Xu Han Job Market Paper transform the infinite-dimensional problem into a finite-dimensional one by combining the individual has good finite-sample size and power. We imple- ment our tests to an updated version of Stock

  15. Gated Si nanowires for large thermoelectric power factors

    SciTech Connect (OSTI)

    Neophytou, Neophytos, E-mail: N.Neophytou@warwick.ac.uk [School of Engineering, University of Warwick, Coventry CV4 7AL (United Kingdom); Kosina, Hans [Institute for Microelectronics, Vienna University of Technology, Gusshausstrasse 27-29/E360, Vienna A-1040 (Austria)

    2014-08-18

    We investigate the effect of electrostatic gating on the thermoelectric power factor of p-type Si nanowires (NWs) of up to 20?nm in diameter in the [100], [110], and [111] crystallographic transport orientations. We use atomistic tight-binding simulations for the calculation of the NW electronic structure, coupled to linearized Boltzmann transport equation for the calculation of the thermoelectric coefficients. We show that gated NW structures can provide ?5× larger thermoelectric power factor compared to doped channels, attributed to their high hole phonon-limited mobility, as well as gating induced bandstructure modifications which further improve mobility. Despite the fact that gating shifts the charge carriers near the NW surface, surface roughness scattering is not strong enough to degrade the transport properties of the accumulated hole layer. The highest power factor is achieved for the [111] NW, followed by the [110], and finally by the [100] NW. As the NW diameter increases, the advantage of the gated channel is reduced. We show, however, that even at 20?nm diameters (the largest ones that we were able to simulate), a ?3× higher power factor for gated channels is observed. Our simulations suggest that the advantage of gating could still be present in NWs with diameters of up to ?40?nm.

  16. Factors influencing the efficiency of arsenic extraction by phosphate 

    E-Print Network [OSTI]

    Yean, Su Jin

    2005-11-01

    of this study were to examine the relationships between phosphate-extractable arsenic and soil iron-oxide composition and to investigate the experimental factors which might influence arsenic-extraction efficiency from rice-paddy soils of Bangladesh by phosphate...

  17. Nucleon form factors program with SBS at JLAB

    SciTech Connect (OSTI)

    Wojtsekhowski, Bogdan B.

    2014-12-01

    The physics of the nucleon form factors is the basic part of the Jefferson Laboratory program. We review the achievements of the 6-GeV era and the program with the 12- GeV beam with the SBS spectrometer in Hall A, with a focus on the nucleon ground state properties.

  18. Oil vs. Natural Gas: Prices and US Economy Wide Factors

    E-Print Network [OSTI]

    California at Davis, University of

    Oil vs. Natural Gas: Prices and US Economy Wide Factors UC Davis October 1, 2015 Stephen Brown.S. reliance on imported natural gas · Substantially lower natural gas prices · How has natural gas consumption responded? · Will natural gas prices remain low relative to oil? · Brown and Yücel (2008); Huntington (2007

  19. Factors Influencing Productivity and Operating Cost of Demand Responsive Transit

    E-Print Network [OSTI]

    Dessouky, Maged

    Factors Influencing Productivity and Operating Cost of Demand Responsive Transit Kurt Palmer Maged of the Americans with Disabilities Act in 1991 operating expenses for Demand Responsive Transit have more than and practices upon productivity and operating cost. ii #12;1 Introduction Demand Responsive Transit (DRT

  20. Risk factors in oil and gas lending; New financing alternatives

    SciTech Connect (OSTI)

    David, A.; Kipp, J.M.

    1991-12-01

    This paper reports that with the increasing internationalization of the petroleum industry, lenders to the industry must understand and overcome several new credit risk factors. As a result, new financial products are now available to reserve-based borrowers. Traditional project financing now also may include futures hedging, swaps, and collar elements.

  1. The Reproductive Factors Linked to Breast Cancer Risk

    E-Print Network [OSTI]

    Chen, Tsuhan

    The Reproductive Factors Linked to Breast Cancer Risk The breast is a reproductive organ, so it makes sense that breast cancer risk would be related to reproductive variables. A woman's own estrogen contributes to the normal development and functioning of the breast, as well as to breast cancer risk. Being

  2. DIRECTIONS AND FACTORIZATIONS OF ZEROS AND POLES IN MULTIVARIABLE SYSTEMS

    E-Print Network [OSTI]

    Skogestad, Sigurd

    DIRECTIONS AND FACTORIZATIONS OF ZEROS AND POLES IN MULTIVARIABLE SYSTEMS K. Havre 1 and S. INTERNAL REPORT ­ June 96. Abstract. Directionality of zeros and poles in multivariable systems­ izations of RHP­zeros and poles in Blaschke products, with state­space realizations dependent on the pole

  3. DIRECTIONS AND FACTORIZATIONS OF ZEROS AND POLES IN MULTIVARIABLE SYSTEMS

    E-Print Network [OSTI]

    Skogestad, Sigurd

    DIRECTIONS AND FACTORIZATIONS OF ZEROS AND POLES IN MULTIVARIABLE SYSTEMS K. Havre1 and S. INTERNAL REPORT - June 96. Abstract. Directionality of zeros and poles in multivariable systems- izations of RHP-zeros and poles in Blaschke products, with state-space realizations dependent on the pole

  4. High Performance LU Factorization for Non-dedicated Clusters

    E-Print Network [OSTI]

    High Performance LU Factorization for Non-dedicated Clusters Toshio Endo PRESTO, JST endo performance on non-dedicated clusters, where the number of avail- able computing resources may be arbitrary, because they often need dedicated resources for predictable load-balancing and synchronization latencies

  5. Effect of Environmental Factors on Sulfur Gas Emissions from Drywall

    SciTech Connect (OSTI)

    Maddalena, Randy

    2011-08-20

    Problem drywall installed in U.S. homes is suspected of being a source of odorous and potentially corrosive indoor pollutants. The U.S. Consumer Product Safety Commission's (CPSC) investigation of problem drywall incorporates three parallel tracks: (1) evaluating the relationship between the drywall and reported health symptoms; (2) evaluating the relationship between the drywall and electrical and fire safety issues in affected homes; and (3) tracing the origin and the distribution of the drywall. To assess the potential impact on human health and to support testing for electrical and fire safety, the CPSC has initiated a series of laboratory tests that provide elemental characterization of drywall, characterization of chemical emissions, and in-home air sampling. The chemical emission testing was conducted at Lawrence Berkeley National Laboratory (LBNL). The LBNL study consisted of two phases. In Phase 1 of this study, LBNL tested thirty drywall samples provided by CPSC and reported standard emission factors for volatile organic compounds (VOCs), aldehydes, reactive sulfur gases (RSGs) and volatile sulfur compounds (VSCs). The standard emission factors were determined using small (10.75 liter) dynamic test chambers housed in a constant temperature environmental chamber. The tests were all run at 25 C, 50% relative humidity (RH) and with an area-specific ventilation rate of {approx}1.5 cubic meters per square meter of emitting surface per hour [m{sup 3}/m{sup 2}/h]. The thirty samples that were tested in Phase 1 included seventeen that were manufactured in China in 2005, 2006 and 2009, and thirteen that were manufactured in North America in 2009. The measured emission factors for VOCs and aldehydes were generally low and did not differ significantly between the Chinese and North American drywall. Eight of the samples tested had elevated emissions of volatile sulfur-containing compounds with total RSG emission factors between 32 and 258 micrograms per square meter per hour [{micro}g/m{sup 2}/h]. The dominant sulfur containing compounds in the RSG emission stream were hydrogen sulfide with emission factors between 17-201 {micro}g/m{sup 2}/h, and sulfur dioxide with emission factors between 8-64 {micro}g/m{sup 2}/h. The four highest emitting samples also had a unique signature of VSC emissions including > 40 higher molecular weight sulfur-containing compounds although the emission rate for the VSCs was several orders of magnitude lower than that of the RSGs. All of the high emitting drywall samples were manufactured in China in 2005-2006. Results from Phase 1 provided baseline emission factors for drywall samples manufactured in China and in North America but the results exclude variations in environmental conditions that may exist in homes or other built structures, including various combinations of temperature, RH, ventilation rate and the influence of coatings such as texture and paints. The objective of Phase 2 was to quantify the effect of temperature and RH on the RSG emission factors for uncoated drywall, and to measure the effect of plaster and paint coatings on RSG emission factors from drywall. Additional experiments were also performed to assess the influence of ventilation rate on measured emission factors for drywall.

  6. Human factors review for Severe Accident Sequence Analysis (SASA)

    SciTech Connect (OSTI)

    Krois, P.A.; Haas, P.M.; Manning, J.J.; Bovell, C.R.

    1984-01-01

    The paper will discuss work being conducted during this human factors review including: (1) support of the Severe Accident Sequence Analysis (SASA) Program based on an assessment of operator actions, and (2) development of a descriptive model of operator severe accident management. Research by SASA analysts on the Browns Ferry Unit One (BF1) anticipated transient without scram (ATWS) was supported through a concurrent assessment of operator performance to demonstrate contributions to SASA analyses from human factors data and methods. A descriptive model was developed called the Function Oriented Accident Management (FOAM) model, which serves as a structure for bridging human factors, operations, and engineering expertise and which is useful for identifying needs/deficiencies in the area of accident management. The assessment of human factors issues related to ATWS required extensive coordination with SASA analysts. The analysis was consolidated primarily to six operator actions identified in the Emergency Procedure Guidelines (EPGs) as being the most critical to the accident sequence. These actions were assessed through simulator exercises, qualitative reviews, and quantitative human reliability analyses. The FOAM descriptive model assumes as a starting point that multiple operator/system failures exceed the scope of procedures and necessitates a knowledge-based emergency response by the operators. The FOAM model provides a functionally-oriented structure for assembling human factors, operations, and engineering data and expertise into operator guidance for unconventional emergency responses to mitigate severe accident progression and avoid/minimize core degradation. Operators must also respond to potential radiological release beyond plant protective barriers. Research needs in accident management and potential uses of the FOAM model are described. 11 references, 1 figure.

  7. Impact of individual, environmental, and policy level factors on healthcare utilization among United States farmworkers

    E-Print Network [OSTI]

    Hoerster, Katherine D.

    2010-01-01

    of Individual, Environmental, and Policy Level Factors onof Individual, Environmental, and Policy Level Factors onindividual, environmental, and policy level correlates of

  8. Synergistic binding of transcription factors to cell-specific enhancers programs motor neuron identity

    E-Print Network [OSTI]

    Mazzoni, Esteban O

    Efficient transcriptional programming promises to open new frontiers in regenerative medicine. However, mechanisms by which programming factors transform cell fate are unknown, preventing more rational selection of factors ...

  9. Energy Price Indices and Discount Factors for Life-Cycle Cost...

    Office of Environmental Management (EM)

    0 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2010 Report describes the 2010 edition of energy price indices and discount factors for performing...

  10. AMPA receptor-induced local brain-derived neurotrophic factor signaling mediates motor recovery after stroke.

    E-Print Network [OSTI]

    Clarkson, Andrew N; Overman, Justine J; Zhong, Sheng; Mueller, Rudolf; Lynch, Gary; Carmichael, S Thomas

    2011-01-01

    polymorphism in the brain-derived neurotrophic factor gene (Chronic elevation of brain-derived neurotrophic factor bysustained increases in brain-derived neurotrophic fac- tor

  11. Engineering phenolics metabolism in the grasses using transcription factors

    SciTech Connect (OSTI)

    Grotewold, Erich [The Ohio State University

    2013-07-26

    The economical competitiveness of agriculture-derived biofuels can be significantly enhanced by increasing biomass/acre yields and by furnishing the desired carbon balance for facilitating liquid fuel production (e.g., ethanol) or for high-energy solid waste availability to be used as biopower (e.g., for electricity production). Biomass production and carbon balance are tightly linked to the biosynthesis of phenolic compounds, which are found in crops and in agricultural residues either as lignins, as part of the cell wall, or as soluble phenolics which play a variety of functions in the biology of plants. The grasses, in particular maize, provide the single major source of agricultural biomass, offering significant opportunities for increasing renewable fuel production. Our laboratory has pioneered the use of transcription factors for manipulating plant metabolic pathways, an approach that will be applied here towards altering the composition of phenolic compounds in maize. Previously, we identified a small group of ten maize R2R3-MYB transcription factors with all the characteristics of regulators of different aspects of phenolic biosynthesis. Here, we propose to investigate the participation of these R2R3-MYB factors in the regulation of soluble and insoluble maize phenolics, using a combination of over-expression and down-regulation of these transcription factors in transgenic maize cultured cells and in maize plants. Maize cells and plants altered in the activity of these regulatory proteins will be analyzed for phenolic composition by targeted metabolic profiling. Specifically, we will I) Investigate the effect of gain- and loss-of-function of a select group of R2R3-MYB transcription factors on the phenolic composition of maize plants and II) Identify the biosynthetic genes regulated by each of the selected R2R3-MYB factors. While a likely outcome of these studies are transgenic maize plants with altered phenolic composition, this research will significantly contribute to understanding how different branches of the phenolic biosynthetic grid are regulated. Given the conservation of the selected regulators in other grasses, results derived from this project are likely to provide important tools for the manipulation of phenolic compounds in other emerging biomass producers (e.g., switchgrass or miscanthus), either through conventional breeding techniques (e.g., marker-assisted breeding) or by using transgenic approaches.

  12. Factors driving wind power development in the United States

    SciTech Connect (OSTI)

    Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

    2003-05-15

    In the United States, there has been substantial recent growth in wind energy generating capacity, with growth averaging 24 percent annually during the past five years. About 1,700 MW of wind energy capacity was installed in 2001, while another 410 MW became operational in 2002. This year (2003) shows promise of significant growth with more than 1,500 MW planned. With this growth, an increasing number of states are experiencing investment in wind energy projects. Wind installations currently exist in about half of all U.S. states. This paper explores the key factors at play in the states that have achieved a substantial amount of wind energy investment. Some of the factors that are examined include policy drivers, such as renewable portfolio standards (RPS), federal and state financial incentives, and integrated resource planning; as well as market drivers, such as consumer demand for green power, natural gas price volatility, and wholesale market rules.

  13. Dirac equation in low dimensions: The factorization method

    E-Print Network [OSTI]

    J. A. Sanchez-Monroy; C. J. Quimbay

    2014-09-30

    We present a general approach to solve the (1+1) and (2+1)-dimensional Dirac equation in the presence of static scalar, pseudoscalar and gauge potentials, for the case in which the potentials have the same functional form and thus the factorization method can be applied. We show that the presence of electric potentials in the Dirac equation leads to a two Klein-Gordon equations including an energy-dependent potential. We then generalize the factorization method for the case of energy-dependent Hamiltonians. Additionally, the shape invariance is generalized for a specific class of energy-dependent Hamiltonians. We also present a condition for the absence of the Klein's paradox (stability of the Dirac sea), showing how Dirac particles in low dimensions can be confined for a wide family of potentials.

  14. Measurement of the gamma gamma* -> pi0 transition form factor

    SciTech Connect (OSTI)

    Aubert, B.

    2009-06-02

    We study the reaction e{sup +}e{sup -} {yields} e{sup +}e{sup -}{pi}{sup 0} in the single tag mode and measure the differential cross section d{sigma}/dQ{sup 2} and the {gamma}{gamma}* {yields} {pi}{sup 0} transition form factor in the mometum transfer range from 4 to 40 GeV{sup 2}. At Q{sup 2} > 10 GeV{sup 2} the measured form factor exceeds the asymptotic limit predicted by perturbative QCD. The analysis is based on 442 fb{sup -1} of integrated luminosity collected at PEP-II with the BABAR detector at e{sup +}e{sup -} center-of-mass energies near 10.6 GeV.

  15. Isospin violation and the proton's neutral weak magnetic form factor

    E-Print Network [OSTI]

    Randy Lewis; Nader Mobed

    1998-10-05

    The effects of isospin violation on the neutral weak magnetic form factor of the proton are studied using two-flavour chiral perturbation theory. The first nonzero contributions appear at O(p^4) in the small-momentum expansion, and the O(p^5) corrections are also calculated. The leading contributions from an explicit Delta(1232) isomultiplet are included as well. At such a high order in the chiral expansion, one might have expected a large number of unknown parameters to contribute. However, it is found that no unknown parameters can appear within loop diagrams, and a single tree-level counterterm at O(p^4) is sufficient to absorb all divergences. The momentum dependence of the neutral weak magnetic form factor is not affected by this counterterm.

  16. Form factors for semi-leptonic B decays

    E-Print Network [OSTI]

    Ran Zhou; Steven Gottlieb; Jon A. Bailey; Daping Du; Aida X. El-Khadra; R. D. Jain; Andreas S. Kronfeld; Ruth S. Van de Water; Yuzhi Liu; Yannick Meurice; for the Fermilab Lattice; MILC Collaborations

    2012-11-06

    We report on form factors for the B->K l^+ l^- semi-leptonic decay process. We use several lattice spacings from a=0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These ensembles allow good control of the chiral and continuum extrapolations. The b-quark is treated as a clover quark with the Fermilab interpretation. We update our results for f_\\parallel and f_\\perp, or, equivalently, f_+ and f_0. In addition, we present new results for the tensor form factor f_T. Model independent results are obtained based upon the z-expansion.

  17. Triton Electric Form Factor at Low-Energies

    E-Print Network [OSTI]

    H. Sadeghi

    2009-08-14

    Making use of the Effective Field Theory(EFT) expansion recently developed by the authors, we compute the charge form factor of triton up to next-to-next-to-leading order (N$^2$LO). The three-nucleon forces(3NF) is required for renormalization of the three-nucleon system and it effects are predicted for process and is qualitatively supported by available experimental data. We also show that, by including higher order corrections, the calculated charge form factor and charge radius of $^3$H are in satisfactory agreement with the experimental data and the realistic Argonne $v_{18}$ two-nucleon and Urbana IX potential models calculations. This method makes possible a high precision few-body calculations in nuclear physics. Our result converges order by order in low energy expansion and also cut-off independent.

  18. Factors Limiting Complete Tumor Ablation by Radiofrequency Ablation

    SciTech Connect (OSTI)

    Paulet, Erwan, E-mail: erwanpaulet@yahoo.fr; Aube, Christophe [University Hospital Angers, Department of Radiology (France); Pessaux, Patrick [University Hospital Angers, Department of Visceral Surgery (France); Lebigot, Jerome [University Hospital Angers, Department of Radiology (France); Lhermitte, Emilie [University Hospital Angers, Department of Visceral Surgery (France); Oberti, Frederic [University Hospital Angers, Department of Hepato-Gastroenterology (France); Ponthieux, Anne [University Hospital Angers, Clinical Research Center (France); Cales, Paul [University Hospital Angers, Department of Hepato-Gastroenterology (France); Ridereau-Zins, Catherine [University Hospital Angers, Department of Radiology (France); Pereira, Philippe L. [Eberhard-Karls University, Department of Diagnostic Radiology (Germany)

    2008-01-15

    The purpose of this study was to determine radiological or physical factors to predict the risk of residual mass or local recurrence of primary and secondary hepatic tumors treated by radiofrequency ablation (RFA). Eighty-two patients, with 146 lesions (80 hepatocellular carcinomas, 66 metastases), were treated by RFA. Morphological parameters of the lesions included size, location, number, ultrasound echogenicity, computed tomography density, and magnetic resonance signal intensity were obtained before and after treatment. Parameters of the generator were recorded during radiofrequency application. The recurrence-free group was statistically compared to the recurrence and residual mass groups on all these parameters. Twenty residual masses were detected. Twenty-nine lesions recurred after a mean follow-up of 18 months. Size was a predictive parameter. Patients' sex and age and the echogenicity and density of lesions were significantly different for the recurrence and residual mass groups compared to the recurrence-free group (p < 0.05). The presence of an enhanced ring on the magnetic resonance control was more frequent in the recurrence and residual mass groups. In the group of patients with residual lesions, analysis of physical parameters showed a significant increase (p < 0.05) in the time necessary for the temperature to rise. In conclusion, this study confirms risk factors of recurrence such as the size of the tumor and emphasizes other factors such as a posttreatment enhanced ring and an increase in the time necessary for the rise in temperature. These factors should be taken into consideration when performing RFA and during follow-up.

  19. Astrophysical factors:Zero energy vs. Most effective energy

    E-Print Network [OSTI]

    Theodore E. Liolios

    2001-05-02

    Effective astrophysical factors for non-resonant astrophysical nuclear reaction are invariably calculated with respect to a zero energy limit. In the present work that limit is shown to be very disadvantageous compared to the more natural effective energy limit. The latter is used in order to modify the thermonuclear reaction rate formula so that it takes into account both plasma and laboratory screening effects.

  20. Method for factor analysis of GC/MS data

    DOE Patents [OSTI]

    Van Benthem, Mark H; Kotula, Paul G; Keenan, Michael R

    2012-09-11

    The method of the present invention provides a fast, robust, and automated multivariate statistical analysis of gas chromatography/mass spectroscopy (GC/MS) data sets. The method can involve systematic elimination of undesired, saturated peak masses to yield data that follow a linear, additive model. The cleaned data can then be subjected to a combination of PCA and orthogonal factor rotation followed by refinement with MCR-ALS to yield highly interpretable results.

  1. Utility & Regulatory Factors Affecting Cogeneration & Independent Power Plant Design & Operation 

    E-Print Network [OSTI]

    Felak, R. P.

    1986-01-01

    , TX, June 17-19, 1986 Table 1 (Cont'd) Situation Utility has a temp orary oversupply of its own baseload power sources and thus at certain times prefers dis patching the inde pendent power source Requirement If the producer does not comply... factor range, as as intended output range as a functi time, and rate of change) Delivery (and purchase) voltage leve preferred Auxiliary power requirements Start-up/Standby/Emergency power requirements Sendout characteristics (e.g., net v surplus...

  2. A Dual Method for Computing Power Transfer Distribution Factors

    E-Print Network [OSTI]

    Ronellenfitsch, Henrik; Witthaut, Dirk

    2015-01-01

    Power Transfer Distribution Factors (PTDFs) play a crucial role in power grid security analysis, planning, and redispatch. Fast calculation of the PTDFs is therefore of great importance. In this letter, we present a dual method of computing PTDFs. It uses power flows along topological cycles of the network but still relies on simple matrix algebra. For power grids containing a relatively small number of cycles, the method offers a significant speedup of numerical calculations.

  3. Method for determining formation quality factor from seismic data

    DOE Patents [OSTI]

    Taner, M. Turhan; Treitel, Sven

    2005-08-16

    A method is disclosed for calculating the quality factor Q from a seismic data trace. The method includes calculating a first and a second minimum phase inverse wavelet at a first and a second time interval along the seismic data trace, synthetically dividing the first wavelet by the second wavelet, Fourier transforming the result of the synthetic division, calculating the logarithm of this quotient of Fourier transforms and determining the slope of a best fit line to the logarithm of the quotient.

  4. Human factors engineering report for the cold vacuum drying facility

    SciTech Connect (OSTI)

    IMKER, F.W.

    1999-06-30

    The purpose of this report is to present the results and findings of the final Human Factors Engineering (HFE) technical analysis and evaluation of the Cold Vacuum Drying Facility (CVDF). Ergonomics issues are also addressed in this report, as appropriate. This report follows up and completes the preliminary work accomplished and reported by the Preliminary HFE Analysis report (SNF-2825, Spent Nuclear Fuel Project Cold Vacuum Drying Facility Human Factors Engineering Analysis: Results and Findings). This analysis avoids redundancy of effort except for ensuring that previously recommended HFE design changes have not affected other parts of the system. Changes in one part of the system may affect other parts of the system where those changes were not applied. The final HFE analysis and evaluation of the CVDF human-machine interactions (HMI) was expanded to include: the physical work environment, human-computer interface (HCI) including workstation and software, operator tasks, tools, maintainability, communications, staffing, training, and the overall ability of humans to accomplish their responsibilities, as appropriate. Key focal areas for this report are the process bay operations, process water conditioning (PWC) skid, tank room, and Central Control Room operations. These key areas contain the system safety-class components and are the foundation for the human factors design basis of the CVDF.

  5. Master integrals for the four-loop Sudakov form factor

    E-Print Network [OSTI]

    Boels, Rutger; Yang, Gang

    2015-01-01

    The light-like cusp anomalous dimension is a universal function in the analysis of infrared divergences. In maximally ($\\mathcal{N}=4$) supersymmetric Yang-Mills theory (SYM) in the planar limit, it is known, in principle, to all loop orders. The non-planar corrections are not known in any theory, with the first appearing at the four-loop order. Probably the simplest quantity which contains this correction is the four-loop two-point form factor of the stress tensor multiplet. This form factor was obtained in integrand form in a previous work for $\\mathcal{N}=4$ SYM, up to a single parameter. In this work, a reduction of the appearing integrals obtained by solving integration-by-parts (IBP) identities using (a tweaked version of) Reduze is reported. The form factor is shown to be independent of the remaining parameter at integrand level due to an intricate pattern of cancellations after IBP reduction. The appearing master integrals are cross-checked using algebraic techniques explored in the Mint package. The ...

  6. Critical success factors in implementing process safety management

    SciTech Connect (OSTI)

    Wilson, D.J. [Chevron USA, Inc., New Orleans, LA (United States)

    1996-08-01

    This paper focuses on several {open_quotes}Critical Success Factors {close_quotes} which will determine how well employees will embrace and utilize the changes being asked of them to implement Process Safety Management (PSM). These success factors are applicable to any change which involves asking employees to perform activities differently than they are currently performing them. This includes changes in work processes (the way we arrange and conduct a set of tasks) or changes in work activities (how we perform individual tasks). Simply developing new work processes and explaining them to employees is not enough to ensure that employees will actually utilize them -- no matter how good these processes are. To ensure successful, complete implementation of Process Safety Management, we must manage the transition from how we perform our work now to how we will perform it after PSM is implemented. Environmental and safety performance improvements, facility reliability and operability increases, and employee effectiveness and productivity gains CAN NOT be achieved until Process Safety Management processes are fully implemented. To successfully implement management of change, mechanical integrity, or any of the other processes in PSM, each of the following critical success factors must be carefully considered and utilized as appropriate. They are: (1) Vision of a Future State, Current State Assessment, and a Detailed Plan to Achieve the Future State, (2) Management Commitment, (3) Ownership by Key Individuals, (4) Justification for Actions, (5) Autonomy to Customize the Process, (6) Feedback Mechanism to Adjust Activities, and (7) Process to Refocus & Redirect Efforts.

  7. Dirac equation in low dimensions: The factorization method

    SciTech Connect (OSTI)

    Sánchez-Monroy, J.A.; Quimbay, C.J.

    2014-11-15

    We present a general approach to solve the (1+1) and (2+1)-dimensional Dirac equations in the presence of static scalar, pseudoscalar and gauge potentials, for the case in which the potentials have the same functional form and thus the factorization method can be applied. We show that the presence of electric potentials in the Dirac equation leads to two Klein–Gordon equations including an energy-dependent potential. We then generalize the factorization method for the case of energy-dependent Hamiltonians. Additionally, the shape invariance is generalized for a specific class of energy-dependent Hamiltonians. We also present a condition for the absence of the Klein paradox (stability of the Dirac sea), showing how Dirac particles in low dimensions can be confined for a wide family of potentials. - Highlights: • The low-dimensional Dirac equation in the presence of static potentials is solved. • The factorization method is generalized for energy-dependent Hamiltonians. • The shape invariance is generalized for energy-dependent Hamiltonians. • The stability of the Dirac sea is related to the existence of supersymmetric partner Hamiltonians.

  8. Transfer Factors for Contaminant Uptake by Fruit and Nut Trees

    SciTech Connect (OSTI)

    Napier, Bruce A.; Fellows, Robert J.; Minc, Leah D.

    2013-11-20

    Transfer of radionuclides from soils into plants is one of the key mechanisms for long-term contamination of the human food chain. Nearly all computer models that address soil-to-plant uptake of radionuclides use empirically-derived transfer factors to address this process. Essentially all available soil-to-plant transfer factors are based on measurements in annual crops. Because very few measurements are available for tree fruits, samples were taken of alfalfa and oats and the stems, leaves, and fruits and nuts of almond, apple, apricot, carob, fig, grape, nectarine, pecan, pistachio (natural and grafted), and pomegranate, along with local surface soil. The samples were dried, ground, weighed, and analyzed for trace constituents through a combination of induction-coupled plasma mass spectrometry and instrumental neutron activation analysis for a wide range of naturally-occurring elements. Analysis results are presented and converted to soil-to-plant transfer factors. These are compared to commonly used and internationally recommended values. Those determined for annual crops are very similar to commonly-used values; those determined for tree fruits show interesting differences. Most macro- and micronutrients are slightly reduced in fruits; non-essential elements are reduced further. These findings may be used in existing computer models and may allow development of tree-fruit-specific transfer models.

  9. Automatic Blocking Of QR and LU Factorizations for Locality

    SciTech Connect (OSTI)

    Yi, Q; Kennedy, K; You, H; Seymour, K; Dongarra, J

    2004-03-26

    QR and LU factorizations for dense matrices are important linear algebra computations that are widely used in scientific applications. To efficiently perform these computations on modern computers, the factorization algorithms need to be blocked when operating on large matrices to effectively exploit the deep cache hierarchy prevalent in today's computer memory systems. Because both QR (based on Householder transformations) and LU factorization algorithms contain complex loop structures, few compilers can fully automate the blocking of these algorithms. Though linear algebra libraries such as LAPACK provides manually blocked implementations of these algorithms, by automatically generating blocked versions of the computations, more benefit can be gained such as automatic adaptation of different blocking strategies. This paper demonstrates how to apply an aggressive loop transformation technique, dependence hoisting, to produce efficient blockings for both QR and LU with partial pivoting. We present different blocking strategies that can be generated by our optimizer and compare the performance of auto-blocked versions with manually tuned versions in LAPACK, both using reference BLAS, ATLAS BLAS and native BLAS specially tuned for the underlying machine architectures.

  10. Dimer Dissociation and Unfolding Mechanism of Coagulation Factor XI Apple 4 Domain: Spectroscopic

    E-Print Network [OSTI]

    Roder, Heinrich

    Dimer Dissociation and Unfolding Mechanism of Coagulation Factor XI Apple 4 Domain: Spectroscopic of disulfide- linked chains each containing four apple domains and a catalytic domain. The apple 4 domain (A4; A4, apple 4 domain of factor XI; DLS, dynamic light scattering; FXI, factor XI; FXIa, factor FXIa

  11. A test of resuspension factor models against Chernobyl data

    SciTech Connect (OSTI)

    Garger, E.K. [Ukrainian Academy of Agricultural Sciences, Kiev (Ukraine). Inst. of Radioecology; Anspaugh, L.R.; Shinn, J.H. [Lawrence Livermore National Lab., CA (United States); Hoffman, F.O. [Senes Oak Ridge, Inc., TN (United States)

    1995-04-01

    After the accident at Unit 4 of the Chernobyl nuclear power plant (NPP), stationary air samplers were operated at Chernobyl and Baryshevka, cities which are 16 km and 150 km, respectively, from the NPP. Other air samplers were operated simultaneously, but intermittently, at locations within the 30 km zone at distances of 4-25 km from the NPP. These data were used to check the validity of time dependent models of the resuspension factor K (m{sup -1}). Seven different models were examined, three of which are discussed in the paper. Data from the stationary air samplers were averaged over one day or one month; dam from the intermittent air samplers were averaged over three days in 1986 and over four hours in 1991. The concentrations of eight radionuclides were measured at ten points during the same time period (14-17 September 1986). The calculated resuspension factors range from 6 x 10{sup -9} m{sup -1} to 3 x 10{sup -6} m{sup -1}. Data for the spatial means of K are given for certain time periods in 1986 and 1991; also presented are the calculated values according to the models. The experimental data and the calculated values differ by up to more than one order of magnitude. Also analysed was the temporal change in experimental values of K and these values were compared with model predictions. The annual means of the resuspension factor as determined experimentally and as calculated with the models are presented. The model derived from empirical data measured in Neuherberg after the Chernobyl accident agrees best with the data. The Garland model systematically gives results lower than the experimental values, and the calculated values of K from the Linsley model are consistently conservative. Also considered were the uncertainty of K due to fluctuations in air concentrations and possible biological effects of episodic exposures.

  12. Preparation and characterization of cobalt-substituted anthrax lethal factor

    SciTech Connect (OSTI)

    Saebel, Crystal E.; Carbone, Ryan; Dabous, John R.; Lo, Suet Y. [Department of Chemistry and Biochemistry, Laurentian University, 935 Ramsey Lake Rd., Sudbury, Ontario, Canada P3E 2C6 (Canada)] [Department of Chemistry and Biochemistry, Laurentian University, 935 Ramsey Lake Rd., Sudbury, Ontario, Canada P3E 2C6 (Canada); Siemann, Stefan, E-mail: ssiemann@laurentian.ca [Department of Chemistry and Biochemistry, Laurentian University, 935 Ramsey Lake Rd., Sudbury, Ontario, Canada P3E 2C6 (Canada)] [Department of Chemistry and Biochemistry, Laurentian University, 935 Ramsey Lake Rd., Sudbury, Ontario, Canada P3E 2C6 (Canada)

    2011-12-09

    Highlights: Black-Right-Pointing-Pointer Cobalt-substituted anthrax lethal factor (CoLF) is highly active. Black-Right-Pointing-Pointer CoLF can be prepared by bio-assimilation and direct exchange. Black-Right-Pointing-Pointer Lethal factor binds cobalt tightly. Black-Right-Pointing-Pointer The electronic spectrum of CoLF reveals penta-coordination. Black-Right-Pointing-Pointer Interaction of CoLF with thioglycolic acid follows a 2-step mechanism. -- Abstract: Anthrax lethal factor (LF) is a zinc-dependent endopeptidase involved in the cleavage of mitogen-activated protein kinase kinases near their N-termini. The current report concerns the preparation of cobalt-substituted LF (CoLF) and its characterization by electronic spectroscopy. Two strategies to produce CoLF were explored, including (i) a bio-assimilation approach involving the cultivation of LF-expressing Bacillus megaterium cells in the presence of CoCl{sub 2}, and (ii) direct exchange by treatment of zinc-LF with CoCl{sub 2}. Independent of the method employed, the protein was found to contain one Co{sup 2+} per LF molecule, and was shown to be twice as active as its native zinc counterpart. The electronic spectrum of CoLF suggests the Co{sup 2+} ion to be five-coordinate, an observation similar to that reported for other Co{sup 2+}-substituted gluzincins, but distinct from that documented for the crystal structure of native LF. Furthermore, spectroscopic studies following the exposure of CoLF to thioglycolic acid (TGA) revealed a sequential mechanism of metal removal from LF, which likely involves the formation of an enzyme: Co{sup 2+}:TGA ternary complex prior to demetallation of the active site. CoLF reported herein constitutes the first spectroscopic probe of LF's active site, which may be utilized in future studies to gain further insight into the enzyme's mechanism and inhibitor interactions.

  13. Harmonic mean, the Gamma factor and Speed of Light

    E-Print Network [OSTI]

    Chandru Iyer

    2008-11-17

    The relationship between the harmonic mean and special relativity is concisely elucidated. The arguments in favor and against SRT are explored. It is shown that the ratio of the speed of light to the harmonic mean of the onward and return speeds of light in a moving frame under Newtonian mechanics, when equitably distributed between space and time as a correction, leads to the Lorentz transformation. This correction implies an apparent contraction of objects and time dilation. However, the symmetry of the onward and inverse transformations give a different meaning to the gamma factor

  14. Asymptotic normalization coefficients, spectroscopic factors, and direct radiative capture rates 

    E-Print Network [OSTI]

    Mukhamedzhanov, AM; Gagliardi, Carl A.; Tribble, Robert E.

    2001-01-01

    , but in such cases, several of the assumptions underlying traditional DWBA treatments are questionable. II. ANC?s AND SPECTROSCOPIC FACTORS The overlap function of the bound state wave functions for particles A, p, and B, where B5(Ap) is the bound state function.... The summation over lB and jB is carried out over the values allowed by angular momentum and parity conser- vation in the virtual process B?A1p . The overlap function is the projection of the state wB onto the two-body channel wAwp . This projection...

  15. The proton gyromagnetic g-factor: an electromagnetic model

    E-Print Network [OSTI]

    G. Sardin

    2009-12-25

    So far, the Standard Model of Elementary Particles has not succeeded getting a trustworthy account of the proton spin, which remains an enigma. This hindrance is known as the proton spin crisis, owing to the experimental evidence already from 1988 suggesting that little or none of the proton spin would come from the spin of the quarks. This prompted theorists to a flood of guessworks about the proton spin. Since it remains unsolved, in the framework of new physics an exploratory approach based on a novel paradigm is proposed, which brings a renewed access to this challenge, through its reciprocal relationship with the g-factor.

  16. Tests of Higgs boson compositeness through the HHH form factor

    E-Print Network [OSTI]

    Gounaris, G J

    2015-01-01

    We show how the $q^2$-dependence of the triple Higgs boson HHH form factor can reveal the presence of various types of new physics contributions, like new particles coupled to the Higgs boson or Higgs boson constituents, without directly observing them. We compare the effect of such new contributions to the one of higher order SM corrections to the point-like HHH coupling, due to triangle, 4-leg and s.e. diagrams. We establish simple analytic expressions describing accurately at high energy these SM corrections, as well as the examples of new physics contributions.

  17. Tests of Higgs boson compositeness through the HHH form factor

    E-Print Network [OSTI]

    G. J. Gounaris; F. M. Renard

    2015-10-14

    We show how the $q^2$-dependence of the triple Higgs boson HHH form factor can reveal the presence of various types of new physics contributions, like new particles coupled to the Higgs boson or Higgs boson constituents, without directly observing them. We compare the effect of such new contributions to the one of higher order SM corrections to the point-like HHH coupling, due to triangle, 4-leg and s.e. diagrams. We establish simple analytic expressions describing accurately at high energy these SM corrections, as well as the examples of new physics contributions.

  18. Factors Influencing the Prices Received for Texas Turkeys. 

    E-Print Network [OSTI]

    Halpin, R. B.; Parnell, E. D.; Mountney, G. J.

    1954-01-01

    Received for Texas Turkeys TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS. DIRECTOR, COLLEGE STATION. TEXAS DIGEST A study was conducted during 1950-53 of the factors influencing the market quality a1 received for Texas turkeys at the farm... and in terminal markets. In Texas, live turkeys usually are purchased as No. 1 or No. 2 grade, No. 1 turkeys are ln!~ well-fleshed birds with some finish and the pinfeathers fanned out. They are free of serious deformitif I such as cuts, tears or bruises. No. 2...

  19. Electromagnetic nucleon form factors in instant and point form

    E-Print Network [OSTI]

    T. Melde; K. Berger; L. Canton; W. Plessas; R. F. Wagenbrunn

    2007-09-30

    We present a study of the electromagnetic structure of the nucleons with constituent quark models in the framework of relativistic quantum mechanics. In particular, we address the construction of spectator-model currents in the instant and point forms. Corresponding results for the elastic nucleon electromagnetic form factors as well as charge radii and magnetic moments are presented. We also compare results obtained by different realistic nucleon wave functions stemming from alternative constituent quark models. Finally, we discuss the theoretical uncertainties that reside in the construction of spectator-model transition operators.

  20. Nucleon electromagnetic form factors from twisted mass lattice QCD

    E-Print Network [OSTI]

    Abdou Abdel-Rehim; Constantia Alexandrou; Martha Constantinou; Kyriakos Hadjiyiannakou; Karl Jansen; Giannis Koutsou

    2015-01-07

    Results on the electromagnetic form factors of the nucleon using twisted mass fermion configurations are presented. These include a gauge field ensemble simulated with two degenerate light quarks yielding a pion mass of around 130 MeV, as well as two ensembles that include strange and charm quarks in the sea yielding pion masses of 210 MeV and 373 MeV. Details of the methods used and systematic errors are discussed, such as noise reduction techniques and the effect of excited states contamination.

  1. The A&A Experience With Impact Factors

    E-Print Network [OSTI]

    Aa. Sandqvist

    2004-03-08

    There is a widespread impression that the scientific journal "Astronomy & Astrophysics" (A&A) has a smaller impact, as measured by citations to articles, than some of the other major astronomy journals. This impression was apparently supported - and probably created - by the Journal Citation Report (JCR), which is prepared annually by the Institute of Scientific Information (ISI) Web of Knowledge. The published poor impact factor of A&A was in fact wrong and was due to a serious flaw in the method used by ISI Web of Knowledge to determine it. The resulting damage inflicted upon A&A by the JCR is incalculable.

  2. Factors affecting the characteristics and utilization of sorghum silage 

    E-Print Network [OSTI]

    Tolbert, Ronnie Edwin

    1977-01-01

    FACTORS AFFECTING THE CHARACT RISl'ICS AND UTILIZATION OF SORGHUI~I SILAGE A I'hesis by RONNIE EDi:IN TOLD 'RT Submitted to the Graduate College of Texas A~. I University in partial fulfillment of' the requirement for the de~sr e of I... to evaluate the effects of vari- eity, organic acid pre ervation, head and stover processin- methods a. id their ratio on sor "hue silage characteristics and utilization. I'. 'o sor hu-; varieties;rer harvested at thc early dou h stage, separated into head...

  3. Greybody factors and charges in Kerr/CFT

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

    Cveti?, Mirjam; Larsen, Finn

    2009-09-01

    We compute greybody factors for near extreme Kerr black holes in D = 4 and D = 5. In D = 4 we include four charges so that our solutions can be continuously deformed to the BPS limit. In D = 5 we include two independent angular momenta so Left-Right symmetry is incorporated. We discuss the CFT interpretation of our emission amplitudes, including the overall frequency dependence and the dependence on all black hole parameters. We find that all additional parameters can be incorporated Kerr/CFT, with central charge independent of U(1) charges.

  4. Property:Geothermal/LoadFactor | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo,AltFuelVehicle2 Jump to: navigation, search This is aAnnualGenGwhYrLoadFactor Jump to:

  5. Architecture of a Quantum Multicomputer Optimized for Shor's Factoring Algorithm

    E-Print Network [OSTI]

    Rodney Doyle Van Meter III

    2006-07-11

    The quantum multicomputer consists of a large number of small nodes and a qubus interconnect for creating entangled state between the nodes. The primary metric chosen is the performance of such a system on Shor's algorithm for factoring large numbers: specifically, the quantum modular exponentiation step that is the computational bottleneck. This dissertation introduces a number of optimizations for the modular exponentiation. My algorithms reduce the latency, or circuit depth, to complete the modular exponentiation of an n-bit number from O(n^3) to O(n log^2 n) or O(n^2 log n), depending on architecture. Calculations show that these algorithms are one million times and thirteen thousand times faster, when factoring a 6,000-bit number, depending on architecture. Extending to the quantum multicomputer, five different qubus interconnect topologies are considered, and two forms of carry-ripple adder are found to be the fastest for a wide range of performance parameters. The links in the quantum multicomputer are serial; parallel links would provide only very modest improvements in system reliability and performance. Two levels of the Steane [[23,1,7

  6. Asymptotic, multigroup flux reconstruction and consistent discontinuity factors

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

    Trahan, Travis J.; Larsen, Edward W.

    2015-05-12

    Recent theoretical work has led to an asymptotically derived expression for reconstructing the neutron flux from lattice functions and multigroup diffusion solutions. The leading-order asymptotic term is the standard expression for flux reconstruction, i.e., it is the product of a shape function, obtained through a lattice calculation, and the multigroup diffusion solution. The first-order asymptotic correction term is significant only where the gradient of the diffusion solution is not small. Inclusion of this first-order correction term can significantly improve the accuracy of the reconstructed flux. One may define discontinuity factors (DFs) to make certain angular moments of the reconstructed fluxmore »continuous across interfaces between assemblies in 1-D. Indeed, the standard assembly discontinuity factors make the zeroth moment (scalar flux) of the reconstructed flux continuous. The inclusion of the correction term in the flux reconstruction provides an additional degree of freedom that can be used to make two angular moments of the reconstructed flux continuous across interfaces by using current DFs in addition to flux DFs. Thus, numerical results demonstrate that using flux and current DFs together can be more accurate than using only flux DFs, and that making the second angular moment continuous can be more accurate than making the zeroth moment continuous.« less

  7. The Solar Wind Charge-Exchange Production Factor for Hydrogen

    E-Print Network [OSTI]

    Kuntz, K D; Collier, M R; Connor, H K; Cravens, T E; Koutroumpa, D; Porter, F S; Robertson, I P; Sibeck, D G; Snowden, S L; Thomas, N E; Wash, B M

    2015-01-01

    The production factor, or broad band averaged cross-section, for solar wind charge-exchange with hydrogen producing emission in the ROSAT 1/4 keV (R12) band is $3.8\\pm0.2\\times10^{-20}$ count degree$^{-2}$ cm$^4$. This value is derived from a comparison of the Long-Term (background) Enhancements in the ROSAT All-Sky Survey with magnetohysdrodynamic simulations of the magnetosheath. This value is 1.8 to 4.5 times higher than values derived from limited atomic data, suggesting that those values may be missing a large number of faint lines. This production factor is important for deriving the exact amount of 1/4 keV band flux that is due to the Local Hot Bubble, for planning future observations in the 1/4 keV band, and for evaluating proposals for remote sensing of the magnetosheath. The same method cannot be applied to the 3/4 keV band as that band, being composed primarily of the oxygen lines, is far more sensitive to the detailed abundances and ionization balance in the solar wind. We also show, incidentally,...

  8. Combined factor analysis of the WISC-III and CMS: does the resulting factor structure discriminate among children with and without clinical disorders? 

    E-Print Network [OSTI]

    Siekierski, Becky Mayes

    2006-10-30

    -III/CMS standardization sample................................................................................................ 35 3 Demographic data of research sample from MAPS study................ 36 4 WISC-III index and IQ score composition... otherwise indicated, consisted of the following: the one-factor model is regarded as essentially the composition of the Full Scale IQ; the two-factor 11 model is based on the verbal and performance dichotomy; the three-factor model consists...

  9. Time-like pion electromagnetic form factors in $k_{T}$ factorization with the Next-to-leading-order twist-3 contribution

    E-Print Network [OSTI]

    Shan Cheng; Zhen-Jun Xiao

    2015-05-12

    We calculate the time-like pion electromagnetic form factor in the $k_T$ factorization formalism with the inclusion of the next-to-leading-order(NLO) corrections to the leading-twist and sub-leading-twist contributions. It's found that the total NLO correction can enhance (reduce) the magnitude (strong phase) of the leading order form factor by $20\\% - 30\\%$ ( $ 5$ GeV$^2$, and the NLO twist-3 correction play the key role to narrow the gap between the pQCD predictions and the measured values for the time-like pion electromagnetic form factor.

  10. On spectroscopic factors of magic and semimagic nuclei

    SciTech Connect (OSTI)

    Saperstein, E. E. [Kurchatov Institute, 123182 Moscow (Russian Federation); Gnezdilov, N. V. [Kurchatov Institute, 123182 Moscow, Russia and National Research Nuclear University MEPhI, 115409 Moscow (Russian Federation); Tolokonnikov, S. V. [Kurchatov Institute, 123182 Moscow, Russia and Moscow Institute of Physics and Technology, 141700 Dolgoprudny (Russian Federation)

    2014-10-15

    Single-particle spectroscopic factors (SF) of magic and semimagic nuclei are analyzed within the self-consistent theory of finite Fermi systems. The the in-volume energy dependence of the mass operator ? is taken into account in addition to the energy dependence induced by the surface-phonon coupling effects which is commonly considered. It appears due to the effect of high-lying collective and non-collective particle-hole excitations and persists in nuclear matter. The self-consistent basis of the energy density functional method by Fayans et al. is used. Both the surface and in-volume contributions to the SFs turned out to be of comparable magnitude. Results for magic {sup 208}Pb nucleus and semimagic lead isotopes are presented.

  11. Factors relevant to utility integration of intermittent renewable technologies

    SciTech Connect (OSTI)

    Wan, Yih-huei; Parsons, B.K.

    1993-08-01

    This study assesses factors that utilities must address when they integrate intermittent renewable technologies into their power-supply systems; it also reviews the literature in this area and has a bibliography containing more than 350 listings. Three topics are covered: (1) interface (hardware and design-related interconnection), (2) operability/stability, and (3) planning. This study finds that several commonly held perceptions regarding integration of intermittent renewable energy technologies are not valid. Among findings of the study are the following: (1) hardware and system design advances have eliminated most concerns about interface; (2) cost penalties have not occurred at low to moderate penetration levels (and high levels are feasible); and (3) intermittent renewable energy technologies can have capacity values. Obstacles still interfering with intermittent renewable technologies are also identified.

  12. Factorization method and new potentials from the inverted oscillator

    SciTech Connect (OSTI)

    Bermudez, David Fernández C, David J.

    2013-06-15

    In this article we will apply the first- and second-order supersymmetric quantum mechanics to obtain new exactly-solvable real potentials departing from the inverted oscillator potential. This system has some special properties; in particular, only very specific second-order transformations produce non-singular real potentials. It will be shown that these transformations turn out to be the so-called complex ones. Moreover, we will study the factorization method applied to the inverted oscillator and the algebraic structure of the new Hamiltonians. -- Highlights: •We apply supersymmetric quantum mechanics to the inverted oscillator potential. •The complex second-order transformations allow us to build new non-singular potentials. •The algebraic structure of the initial and final potentials is analyzed. •The initial potential is described by a complex-deformed Heisenberg–Weyl algebra. •The final potentials are described by polynomial Heisenberg algebras.

  13. Anisotropic dark energy model with a hybrid scale factor

    E-Print Network [OSTI]

    B. Mishra; S. K. Tripathy

    2015-11-08

    Anisotropic dark energy model with dynamic pressure anisotropies along different spatial directions is constructed at the backdrop of a spatially homogeneous diagonal Bianchi type $V$ $(BV)$ space-time in the framework of General Relativity. A time varying deceleration parameter generating a hybrid scale factor is considered to simulate a cosmic transition from early deceleration to late time acceleration. We found that the pressure anisotropies along the $y-$ and $z-$ axes evolve dynamically and continue along with the cosmic expansion without being subsided even at late times. The anisotropic pressure along the $x-$axis becomes equal to the mean fluid pressure. At a late phase of cosmic evolution, the model enters into a phantom region. From a state finder diagnosis, it is found that the model overlaps with $\\Lambda$CDM at late phase of cosmic time.

  14. The electric and magnetic form factors of the proton

    E-Print Network [OSTI]

    A1 Collaboration; J. C. Bernauer; M. O. Distler; J. Friedrich; Th. Walcher; P. Achenbach C. Ayerbe Gayoso; R. Böhm; L. Debenjak; L. Doria; A. Esser; H. Fonvieille; M. Gómez Rodrígues de la Paz; J. M. Friedrich; M. Makek; H. Merkel; D. G. Middleton; U. Müller; L. Nungesser; J. Pochodzalla; M. Potokar; S. Sánchez Majos; B. S. Schlimme; S. Širca; M. Weinriefer

    2014-07-29

    The paper describes a precise measurement of electron scattering off the proton at momentum transfers of $0.003 \\lesssim Q^2 \\lesssim 1$\\ GeV$^2$. The average point-to-point error of the cross sections in this experiment is $\\sim$ 0.37%. These data are used for a coherent new analysis together with all world data of unpolarized and polarized electron scattering from the very smallest to the highest momentum transfers so far measured. The extracted electric and magnetic form factors provide new insight into their exact shape, deviating from the classical dipole form, and of structure on top of this gross shape. The data reaching very low $Q^2$ values are used for a new determination of the electric and magnetic radii. An empirical determination of the Two-Photon-Exchange (TPE) correction is presented. The implications of this correction on the radii and the question of a directly visible signal of the pion cloud are addressed.

  15. Making tensor factorizations robust to non-gaussian noise.

    SciTech Connect (OSTI)

    Chi, Eric C.; Kolda, Tamara Gibson

    2011-03-01

    Tensors are multi-way arrays, and the CANDECOMP/PARAFAC (CP) tensor factorization has found application in many different domains. The CP model is typically fit using a least squares objective function, which is a maximum likelihood estimate under the assumption of independent and identically distributed (i.i.d.) Gaussian noise. We demonstrate that this loss function can be highly sensitive to non-Gaussian noise. Therefore, we propose a loss function based on the 1-norm because it can accommodate both Gaussian and grossly non-Gaussian perturbations. We also present an alternating majorization-minimization (MM) algorithm for fitting a CP model using our proposed loss function (CPAL1) and compare its performance to the workhorse algorithm for fitting CP models, CP alternating least squares (CPALS).

  16. Regions of influence for several methods of factoring polynomials 

    E-Print Network [OSTI]

    Schulze, Tommy Joe

    1965-01-01

    (p , p ) = 0 leads to a quadratic factor. If (5) is differentiated wi. th respect to pl and p we find, treating b as one, Bb Bb. Bb +p~+p~=-b, 1&j&n, Bp 1 Bp 2 Bp j-1' 1 1 1 Bb. 3b 1 Bb +p~+p~=-b, l&j&n. Bp 1 Bp 2 3p j 2' 2 2 2... These are represented by the single recurrence relation (&) C + p C + p C. = -b , 0 & j & n-l, 1 j-1 2 j-2 3b where C = ? , and C = 0 if s&0, while C = -1. k-t Bp s 0 As a matter of interest, 3 b 2 if dk =3 3, whereRandm k-R-m Bp Bp f m are either 1 or 2, 1 j-1 2...

  17. The pion transition form factor and the pion distribution amplitude

    E-Print Network [OSTI]

    S. Noguera; V. Vento

    2010-01-18

    Recent BaBaR data on the pion transition form factor, whose Q^2 dependence is much steeper then predicted by asymptotic Quantum Chromodynamics (QCD), have caused a renewed interest in its theoretical description. We present here a formalism based on a model independent low energy description and a high energy description based on QCD, which match at a scale Q_0. The high energy description incorporates a flat pion distribution amplitude, phi(x)=1, at the matching scale Q_0 and QCD evolution from Q_0 to Q>Q_0. The flat pion distribution is connected, through soft pion theorems and chiral symmetry, to the pion valance parton distribution at the same low scale Q_0. The procedure leads to a good description of the data, and incorporating additional twist three effects, to an excellent description of the data.

  18. On the dual topological quantum numbers filling factors

    E-Print Network [OSTI]

    Wellington da Cruz

    2003-05-26

    We consider recent experimental results [W. Pan {\\it et al}, Phys. Rev. Lett. {\\bf 90}, 016801 (2003)] for occurrence of the fractional quantum Hall effect-FQHE under the perspective of our formulation in terms of {\\it fractons}. These objects carry rational or irrational values of spin and satisfy a {\\it fractal distribution function} associated with a {\\it fractal von Neumann entropy}. According to our approach the {\\it FQHE occurs in pairs of dual topological quantum numbers fillings factors} and this geometrical character comes from the {\\it connection betwenn the fractal parameter or Hausdorff dimension $h$ and the spin $s$ of the particles}. We suggest to the experimentalists consider our ideas and verify in fact that this phenomenon of FQHE satisfy a {\\it symmetry principle} discovered by us, i.e, {\\it the duality symmetry betwenn universal classes of fractons}.

  19. Integrated Functions of Transforming Growth Factor Beta, Latency Associated Peptide, and Integrins During Early Porcine Pregnancy 

    E-Print Network [OSTI]

    Massuto, Dana A.

    2011-02-22

    . Integrins and growth factors are among many molecules likely involved in controlling implantation. Numerous integrins (ITG), including subunits ITGAV (alpha v), ITGB1 (beta 1), ITGB3 (beta 3), and ITGB5 (beta 5), and transforming growth factor betas (TGFBs...

  20. Increasing creative fluency in organizational environments: A comparison of the relative impact between environmental factors 

    E-Print Network [OSTI]

    Wurtz, William

    2009-05-15

    particular organization. One subset is physical or tangible environmental factors, such as the building where people work, as well as less tangible factors, such as “management response.” The instrument was administered in four different organizations in four...

  1. Nuclear physics in soft-wall AdS/QCD: deuteron electromagnetic form factors

    E-Print Network [OSTI]

    Gutsche, Thomas; Schmidt, Ivan; Vega, Alfredo

    2015-01-01

    We present a calculation of the deuteron electromagnetic form factors in a soft-wall AdS/QCD approach. The power scaling of the deuteron form factors is consistent with quark counting rules.

  2. Master Transcription Factors Determine Cell-Type-Specific Responses to TGF-? Signaling

    E-Print Network [OSTI]

    Mullen, Alan C.

    Transforming growth factor beta (TGF-?) signaling, mediated through the transcription factors Smad2 and Smad3 (Smad2/3), directs different responses in different cell types. Here we report that Smad3 co-occupies the genome ...

  3. Evaluation of Loss Factor Estimation Techniques for Free Hanging Flat Panels Excited Mechanically

    E-Print Network [OSTI]

    Dande, Himanshu Amol

    2013-05-31

    To establish the "best" technique to estimate a damping loss factor for mechanically-excited panels, three loss factor estimation techniques--PIM, IRDM, and RDT--are compared. In experimental and computational analyses, ...

  4. Recoil polarization measurements of the proton electromagnetic form factor ratio to high momentum transfer

    E-Print Network [OSTI]

    Puckett, Andrew James Ruehe

    2010-01-01

    The electromagnetic form factors of the nucleon characterize the effect of its internal structure on its response to an electromagnetic probe as studied in elastic electronnucleon scattering. These form factors are functions ...

  5. The neutron electric form factor to Q² = 1.45 (GeV/c)²

    E-Print Network [OSTI]

    Plaster, Bradley R. (Bradley Robert), 1976-

    2004-01-01

    The nucleon elastic electromagnetic form factors are fundamental quantities needed for an understanding of nucleon and nuclear electromagnetic structure. The evolution of the Sachs electric and magnetic form factors with ...

  6. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2015 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2015 Handbook describes the annual...

  7. An evaluation of gender-based weighting factors for internal dosimetry 

    E-Print Network [OSTI]

    Spiars, Joanna Hamilton

    1994-01-01

    This study assesses gender effects on radiation dose weighting factors used in internal dosimetry. A weighting factor represents the relative contribution of a particular organ or tissue to the total detriment due to the effects from uniform whole...

  8. Energy Price Indices and Discount Factors for Life-Cycle Cost...

    Office of Environmental Management (EM)

    2 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2012 Report provides tables of present-value factors for use in the life-cycle cost analysis of capital...

  9. p27{sup Kip1} inhibits tissue factor expression

    SciTech Connect (OSTI)

    Breitenstein, Alexander, E-mail: alexander.breitenstein@usz.ch [Cardiology, University Heart Center, University Hospital Zurich (Switzerland) [Cardiology, University Heart Center, University Hospital Zurich (Switzerland); Cardiovascular Research, Physiology Institute, University of Zurich (Switzerland); Center for Integrative Human Physiology (ZHIP), University of Zurich (Switzerland); Akhmedov, Alexander; Camici, Giovanni G.; Lüscher, Thomas F.; Tanner, Felix C. [Cardiology, University Heart Center, University Hospital Zurich (Switzerland) [Cardiology, University Heart Center, University Hospital Zurich (Switzerland); Cardiovascular Research, Physiology Institute, University of Zurich (Switzerland); Center for Integrative Human Physiology (ZHIP), University of Zurich (Switzerland)

    2013-10-04

    Highlights: •p27{sup Kip1}regulates the expression of tissue factor at the transcriptional level. •This inhibitory effect of p27{sup Kip1} is independently of its cell regulatory action. •The current study provides new insights into a pleiotrophic function of p27{sup Kip1}. -- Abstract: Background: The cyclin-dependent kinase inhibitor (CDKI) p27{sup Kip1} regulates cell proliferation and thus inhibits atherosclerosis and vascular remodeling. Expression of tissue factor (TF), the key initator of the coagulation cascade, is associated with atherosclerosis. Yet, it has not been studied whether p27{sup Kip1} influences the expression of TF. Methods and results: p27{sup Kip1} overexpression in human aortic endothelial cells was achieved by adenoviral transfection. Cells were rendered quiescent for 24 h in 0.5% fetal-calf serum. After stimulation with TNF-? (5 ng/ml), TF protein expression and activity was significantly reduced (n = 4; P < 0.001) in cells transfected with p27{sup Kip1}. In line with this, p27{sup Kip1} overexpression reduced cytokine-induced TF mRNA expression (n = 4; P < 0.01) and TF promotor activity (n = 4; P < 0.05). In contrast, activation of the MAP kinases p38, ERK and JNK was not affected by p27{sup Kip1} overexpression. Conclusion: This in vitro study suggests that p27{sup Kip1} inhibits TF expression at the transcriptional level. These data indicate an interaction between p27{sup Kip1} and TF in important pathological alterations such as atherosclerosis and vascular remodeling.

  10. Facilitated diffusion framework for transcription factor search with conformational changes

    E-Print Network [OSTI]

    Jérôme Cartailler; Jürgen Reingruber

    2015-07-09

    Cellular responses often require the fast activation or repression of specific genes, which depends on Transcription Factors (TFs) that have to quickly find the promoters of these genes within a large genome. Transcription Factors (TFs) search for their DNA promoter target by alternating between bulk diffusion and sliding along the DNA, a mechanism known as facilitated diffusion. We study a facilitated diffusion framework with switching between three search modes: a bulk mode and two sliding modes triggered by conformational changes between two protein conformations. In one conformation (search mode) the TF interacts unspecifically with the DNA backbone resulting in fast sliding. In the other conformation (recognition mode) it interacts specifically and strongly with DNA base pairs leading to slow displacement. From the bulk, a TF associates with the DNA at a random position that is correlated with the previous dissociation point, which implicitly is a function of the DNA structure. The target affinity depends on the conformation. We derive exact expressions for the mean first passage time (MFPT) to bind to the promoter and the conditional probability to bind before detaching when arriving at the promoter site. We systematically explore the parameter space and compare various search scenarios. We compare our results with experimental data for the dimeric Lac repressor search in E.Coli bacteria. We find that a coiled DNA conformation is absolutely necessary for a fast MFPT. With frequent spontaneous conformational changes, a fast search time is achieved even when a TF becomes immobilized in the recognition state due to the specific bindings. We find a MFPT compatible with experimental data in presence of a specific TF-DNA interaction energy that has a Gaussian distribution with a large variance.

  11. Global Agricultural Supply and Demand: Factors Contributing to the Recent Increase in Food Commodity Prices

    SciTech Connect (OSTI)

    none,

    2008-05-01

    This report discusses the factors that have led to global food commodity price inflaction and addresses the resulting implications.

  12. $?_b \\to p l^- \\bar?$ form factors from lattice QCD with static b quarks

    E-Print Network [OSTI]

    William Detmold; C. -J. David Lin; Stefan Meinel; Matthew Wingate

    2013-06-03

    We present a lattice QCD calculation of form factors for the decay $\\Lambda_b \\to p \\mu^- \\bar{\

  13. Proton form factors and two-photon exchange contribution to elastic electron-proton scattering

    E-Print Network [OSTI]

    Proton form factors and two-photon exchange contribution to elastic electron-proton scattering A. V Perspectives of High Energy Physics" Alexander Gramolin (Budker INP) Proton form factors and 2-exchange. . . September 4, 2010 1 / 18 #12;Proton electromagnetic form factors The proton's electric GE (Q2 ) and magnetic

  14. Optimization of wind turbine energy and power factor with an evolutionary computation algorithm

    E-Print Network [OSTI]

    Kusiak, Andrew

    Optimization of wind turbine energy and power factor with an evolutionary computation algorithm 2009 Keywords: Wind turbine Power factor Power output Power quality Data mining Neural network Dynamic computation approach for optimization of power factor and power output of wind turbines is discussed. Data

  15. Using Factor Analysis to Generate Clusters of Agile (A Guide for Agile Process Improvement)

    E-Print Network [OSTI]

    Gravell, Andrew M.

    Using Factor Analysis to Generate Clusters of Agile Practices (A Guide for Agile Process. These factors with the associated practices can be used as a guide for agile process improvement. Correlations different agile practices. The analysis extracted 15 factors; each was associated with a list of practices

  16. Design of a Boost Power Factor Correction Converter Using Optimization Techniques Sergio Busquets-Monge1

    E-Print Network [OSTI]

    Lindner, Douglas K.

    Design of a Boost Power Factor Correction Converter Using Optimization Techniques Sergio Busquets Foundation under Award Number EEC-9731677. #12;Design of a Boost Power Factor Correction Converter Using of a boost power factor correction front-end converter with an input electromagnetic interference filter

  17. Nucleon and flavor form factors in a light front quark model in AdS/QCD

    E-Print Network [OSTI]

    Dipankar Chakrabarti; Chandan Mondal

    2013-12-05

    Using the light front wave functions for the nucleons in a quark model in AdS/QCD, we calculate the nucleon electromagnetic form factors. The flavor decompositions of the nucleon form factors are calculated from the GPDs in this model. We show that the nucleon form factors and their flavor decompositions calculated in AdS/QCD are in agreement with experimental data.

  18. A Review of Operational Water Consumption and Withdrawal Factors for Electricity Generating Technologies

    SciTech Connect (OSTI)

    Macknick, Jordan; Newmark, Robin; Heath, Garvin; Hallett, K. C.

    2011-03-01

    This report provides estimates of operational water withdrawal and water consumption factors for electricity generating technologies in the United States. Estimates of water factors were collected from published primary literature and were not modified except for unit conversions. The presented water factors may be useful in modeling and policy analyses where reliable power plant level data are not available.

  19. Extracellular nonmitogenic angiogenesis factor and method of isolation thereof from wound fluid

    DOE Patents [OSTI]

    Banda, M.J.; Werb, Z.; Knighton, D.R.; Hunt, T.K.

    1985-03-05

    A nonmitogenic angiogenesis factor is isolated from wound fluid by dialysis to include materials in the molecular size range of 2,000 to 14,000, lyophilization, and chromatography. The nonmitogenic angiogenesis factor is identified by activity by corneal implant assay and by cell migration assay. The angiogenesis factor is also characterized by inactivity by mitogenesis assay. 3 figs.

  20. Extracellular nonmitogenic angiogenesis factor and method of isolation thereof from wound fluid

    DOE Patents [OSTI]

    Banda, Michael J. (San Francisco, CA); Werb, Zena (San Francisco, CA); Knighton, David R. (San Francisco, CA); Hunt, Thomas K. (San Francisco, CA)

    1985-01-01

    A nonmitogenic angiogenesis factor is isolated from wound fluid by dialysis to include materials in the molecular size range of 2,000 to 14,000, lyophilization, and chromatography. The nonmitogenic angiogenesis factor is identified by activity by corneal implant assay and by cell migration assay. The angiogenesis factor is also characterized by inactivity by mitogenesis assay.

  1. Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab

    E-Print Network [OSTI]

    Gilfoyle, Jerry

    Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab G.P.Gilfoyle Future Form Factor Measurements ­ p. 1/3 #12;Scientific Motivation Nucleon elastic electromagnetic form violation experiments. G.P.Gilfoyle Future Form Factor Measurements ­ p. 2/3 #12;Scientific Motivation

  2. Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab

    E-Print Network [OSTI]

    Gilfoyle, Jerry

    Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab G, Hadron2014 Future Form Factor Measurements at JLab 1 / 26 #12;Scientific Motivation - What We Hope the hadronic picture to QCD. Jerry Gilfoyle, Hadron2014 Future Form Factor Measurements at JLab 2 / 26 #12

  3. Scaling factors for production rates of in situ produced cosmogenic nuclides: a critical reevaluation

    E-Print Network [OSTI]

    Zreda, Marek

    Scaling factors for production rates of in situ produced cosmogenic nuclides: a critical of production rates for in situ produced cosmogenic nuclides. The new factors incorporate the influence^6]. The original aim in deriving scaling factors was to quantify cosmogenic nuclide production in the atmosphere [7

  4. IMPROVING CONTROL ROOM DESIGN AND OPERATIONS BASED ON HUMAN FACTORS ANALYSES OR HOW MUCH HUMAN FACTORS UPGRADE IS ENOUGH ?

    SciTech Connect (OSTI)

    HIGGINS,J.C.; OHARA,J.M.; ALMEIDA,P.

    2002-09-19

    THE JOSE CABRERA NUCLEAR POWER PLANT IS A ONE LOOP WESTINGHOUSE PRESSURIZED WATER REACTOR. IN THE CONTROL ROOM, THE DISPLAYS AND CONTROLS USED BY OPERATORS FOR THE EMERGENCY OPERATING PROCEDURES ARE DISTRIBUTED ON FRONT AND BACK PANELS. THIS CONFIGURATION CONTRIBUTED TO RISK IN THE PROBABILISTIC SAFETY ASSESSMENT WHERE IMPORTANT OPERATOR ACTIONS ARE REQUIRED. THIS STUDY WAS UNDERTAKEN TO EVALUATE THE IMPACT OF THE DESIGN ON CREW PERFORMANCE AND PLANT SAFETY AND TO DEVELOP DESIGN IMPROVEMENTS.FIVE POTENTIAL EFFECTS WERE IDENTIFIED. THEN NUREG-0711 [1], PROGRAMMATIC, HUMAN FACTORS, ANALYSES WERE CONDUCTED TO SYSTEMATICALLY EVALUATE THE CR-LA YOUT TO DETERMINE IF THERE WAS EVIDENCE OF THE POTENTIAL EFFECTS. THESE ANALYSES INCLUDED OPERATING EXPERIENCE REVIEW, PSA REVIEW, TASK ANALYSES, AND WALKTHROUGH SIMULATIONS. BASED ON THE RESULTS OF THESE ANALYSES, A VARIETY OF CONTROL ROOM MODIFICATIONS WERE IDENTIFIED. FROM THE ALTERNATIVES, A SELECTION WAS MADE THAT PROVIDED A REASONABLEBALANCE BE TWEEN PERFORMANCE, RISK AND ECONOMICS, AND MODIFICATIONS WERE MADE TO THE PLANT.

  5. Bayesian Sparse Correlated Factor Analysis In this paper, we propose a new sparse correlated factor model under a Bayesian framework that

    E-Print Network [OSTI]

    Ruan, Jianhua

    are . The loading matrix is sparse and since the prior knowledge of non-zero elements are assumed available, the sparse pattern of the loading matrix is significantly constrained, resulting unambiguous factor order. A Gibbs sampler is proposed to uncover the unknown non-negative factors and the loading matrix from data

  6. Human Factors for Situation Assessment in Grid Operations

    SciTech Connect (OSTI)

    Guttromson, Ross T.; Schur, Anne; Greitzer, Frank L.; Paget, Mia L.

    2007-08-08

    Executive Summary Despite advances in technology, power system operators must assimilate overwhelming amounts of data to keep the grid operating. Analyses of recent blackouts have clearly demonstrated the need to enhance the operator’s situation awareness (SA). The long-term objective of this research is to integrate valuable technologies into the grid operator environment that support decision making under normal and abnormal operating conditions and remove non-technical barriers to enable the optimum use of these technologies by individuals working alone and as a team. More specifically, the research aims to identify methods and principles to increase SA of grid operators in the context of system conditions that are representative or common across many operating entities and develop operationally relevant experimental methods for studying technologies and operational practices which contribute to SA. With increasing complexity and interconnectivity of the grid, the scope and complexity of situation awareness have grown. New paradigms are needed to guide research and tool development aimed to enhance and improve operations. In reviewing related research, operating practices, systems, and tools, the present study established a taxonomy that provides a perspective on research and development surrounding power grid situation awareness and clarifies the field of human factors/SA for grid operations. Information sources that we used to identify critical factors underlying SA included interviews with experienced operational personnel, available historical summaries and transcripts of abnormal conditions and outages (e.g., the August 14, 2003 blackout), scientific literature, and operational policies/procedures and other documentation. Our analysis of August 2003 blackout transcripts and interviews adopted a different perspective than previous analyses of this material, and we complemented this analysis with additional interviews. Based on our analysis and a broad literature review, we advocate a new perspective on SA in terms of sensemaking, also called situated or ecological decision making, where the focus of the investigation is to understand why the decision maker(s) experienced the situation the way they did, or why what they saw made sense to them at the time. This perspective is distinct from the traditional branch of human factors research in the field which focuses more on ergonomics and the transactional relationship between the human operator and the systems. Consistent with our findings from the literature review, we recognized an over-arching need to focus SA research on issues surrounding the concept of shared knowledge; e.g., awareness of what is happening in adjacent areas as well as one’s own area of responsibility. Major findings were: a) Inadequate communication/information sharing is pervasive, b) Information is available, but not used. Many tools and mechanisms exist for operators to build awareness of the physical grid system, yet the transcripts reveal that they still need to call and exchange information with operators of neighboring areas to improve or validate their SA. The specific types of information that they request are quite predictable and, in most cases, cover information that could be available to both operators and reliability coordinators through readily available displays or other data sources, c) Shared Knowledge is Required on Operations/Actions as Well as Physical Status. In an ideal, technologically and organizationally perfect world, every control room and every reliability coordinator may have access to complete data across all regional control areas and yet, there would still be reason for the operators to call each other to gain and improve their SA of power grid operations, and d) Situation Awareness as sensemaking and shared knowledge.

  7. Decommissioning Cost Estimating Factors And Earned Value Integration

    SciTech Connect (OSTI)

    Sanford, P.C.; Cimmarron, E.

    2008-07-01

    The Rocky Flats 771 Project progressed from the planning stage of decommissioning a plutonium facility, through the strip-out of highly-contaminated equipment, removal of utilities and structural decontamination, and building demolition. Actual cost data was collected from the strip-out activities and compared to original estimates, allowing the development of cost by equipment groupings and types and over time. Separate data was developed from the project control earned value reporting and compared with the equipment data. The paper discusses the analysis to develop the detailed factors for the different equipment types, and the items that need to be considered during characterization of a similar facility when preparing an estimate. The factors are presented based on direct labor requirements by equipment type. The paper also includes actual support costs, and examples of fixed or one-time start-up costs. The integration of the estimate and the earned value system used for the 771 Project is also discussed. The paper covers the development of the earned value system as well as its application to a facility to be decommissioned and an existing work breakdown structure. Lessons learned are provided, including integration with scheduling and craft supervision, measurement approaches, and verification of scope completion. In summary: The work of decommissioning the Rocky Flats 771 Project process equipment was completed in 2003. Early in the planning process, we had difficulty in identifying credible data and implementing processes for estimating and controlling this work. As the project progressed, we were able to collect actual data on the costs of removing plutonium contaminated equipment from various areas over the life of this work and associate those costs with individual pieces of equipment. We also were able to develop and test out a system for measuring the earned value of a decommissioning project based on an evolving estimate. These were elements that would have been useful to us in our early planning process, and we would expect that they would find application elsewhere as the DOE weapons complex and some commercial nuclear facilities move towards closure. (authors)

  8. Factors affecting coking pressures in tall coke ovens

    SciTech Connect (OSTI)

    Grimley, J.J.; Radley, C.E. [British Steel plc, Scunthorpe (United Kingdom). Scunthorpe Works

    1995-12-01

    The detrimental effects of excessive coking pressures, resulting in the permanent deformation of coke oven walls, have been recognized for many years. Considerable research has been undertaken worldwide in attempts to define the limits within which a plant may safely operate and to quantify the factors which influence these pressures. Few full scale techniques are available for assessing the potential of a coal blend for causing wall damage. Inference of dangerous swelling pressures may be made however by the measurement of the peak gas pressure which is generated as the plastic layers meet and coalesce at the center of the oven. This pressure is referred to in this report as the carbonizing pressure. At the Dawes Lane cokemaking plant of British Steel`s Scunthorpe Works, a large database has been compiled over several years from the regulator measurement of this pressure. This data has been statistically analyzed to provide a mathematical model for predicting the carbonizing pressure from the properties of the component coals, the results of this analysis are presented in this report.

  9. Factors regulating PAH transformations in disturbed coastal sediments

    SciTech Connect (OSTI)

    LeBlanc, L.A.; Gulnick, J.D.; Brownawell, B.J.; Taylor, G.T. [State Univ. of New York, Stony Brook, NY (United States). Marine Sciences Research Center

    1995-12-31

    Important limitations to bacterial transformations of polycyclic aromatic hydrocarbon (PAH) compounds in sediments include compound structure, dissolved concentration and oxygen availability. Here the authors present evidence suggesting that dissolved concentration is as important as structure in controlling degradation in radiolabeled sediments in flow through microcosms. Results from experiments where the mineralization rates of naphthalene phenanthrene and benzo[a]pyrene were related to the degree of oxygenation of suboxic sediments via sediment resuspension, showed that differences between mineralization rates and percent maximum degradation never varied by more than a factor of two between naphthalene and phenanthrene, despite phenanthrene having sixteen-fold greater hydrophobicity. The results also showed that dissolved naphthalene concentrations in the overlying water from frequently resuspended sediments were much farther below equilibrium predictions than dissolved concentrations of phenanthrene and B[a]P. The authors postulate that kinetic limitations to desorption into the aqueous phase limits the biodegradation of naphthalene to a greater extent than for phenanthrene and B[a]P. Results from experiments relating desorption from sediment to mineralization in side-by-side comparisons showed that labeled sediments undergoing resuspension in microcosms desorbed much less naphthalene than phenanthrene, and that the amount desorbed was largely underpredicted by a kinetic radial diffusion model, especially for naphthalene. Desorption rate limitation in the system may help to explain the similar degree of mineralization of naphthalene and phenanthrene seen in the experiments.

  10. The static structure factor of amorphous silicon and vitreous silica

    E-Print Network [OSTI]

    Adam M. R. de Graff; M. F. Thorpe

    2009-09-14

    Liquids are in thermal equilibrium and have a non-zero static structure factor S(Q->0) = [-^2]/ = rho*k_B*T*Chi_T where rho is the number density, T is the temperature, Q is the scattering vector and Chi_T is the isothermal compressibility. The first part of this result involving the number N (or density) fluctuations is a purely geometrical result and does not involve any assumptions about thermal equilibrium or ergodicity and so is obeyed by all materials. From a large computer model of amorphous silicon, local number fluctuations extrapolate to give S(0) = 0.035+/-0.001. The same computation on a large model of vitreous silica using only the silicon atoms and rescaling the distances gives S(0) = 0.039+/-0.001, which suggests that this numerical result is robust and similar for all amorphous tetrahedral networks. For vitreous silica, we find that S(0) = 0.116+/-0.003, close to the experimental value of S(0) = 0.0900+/-0.0048 obtained recently by small angle neutron scattering. More detailed experimental and modelling studies are needed to determine the relationship between the fictive temperature and structure.

  11. Epidermal growth factor and its receptors in human pancreatic carcinoma

    SciTech Connect (OSTI)

    Chen, Y.F.; Pan, G.Z.; Hou, X.; Liu, T.H.; Chen, J.; Yanaihara, C.; Yanaihara, N. (Peking Union Medical College Hospital, Beijing (China))

    1990-05-01

    The role of epidermal growth factor (EGF) in oncogenesis and progression of malignant tumors is a subject of vast interest. In this study, radioimmunoassay and radioreceptor assay of EGF were established. EGF contents in malignant and benign pancreatic tumors, in normal pancreas tissue, and in culture media of a human pancreatic carcinoma cell line were determined. EGF receptor binding studies were performed. It was shown that EGF contents in pancreatic carcinomas were significantly higher than those in normal pancreas or benign pancreatic tumors. EGF was also detected in the culture medium of a pancreatic carcinoma cell line. The binding of 125I-EGF to the pancreatic carcinoma cells was time and temperature dependent, reversible, competitive, and specific. Scatchard analysis showed that the dissociation constant of EGF receptor was 2.1 X 10(-9) M, number of binding sites was 1.3 X 10(5) cell. These results indicate that there is an over-expression of EGF/EGF receptors in pancreatic carcinomas, and that an autocrine regulatory mechanism may exist in the growth-promoting effect of EGF on tumor cells.

  12. Factors governing sustainable groundwater pumping near a river

    SciTech Connect (OSTI)

    Zhang, Y.; Hubbard, S.S.; Finsterle, S.

    2011-01-15

    The objective of this paper is to provide new insights into processes affecting riverbank filtration (RBF). We consider a system with an inflatable dam installed for enhancing water production from downstream collector wells. Using a numerical model, we investigate the impact of groundwater pumping and dam operation on the hydrodynamics in the aquifer and water production. We focus our study on two processes that potentially limit water production of an RBF system: the development of an unsaturated zone and riverbed clogging. We quantify river clogging by calibrating a time-dependent riverbed permeability function based on knowledge of pumping rate, river stage, and temperature. The dynamics of the estimated riverbed permeability reflects clogging and scouring mechanisms. Our results indicate that (1) riverbed permeability is the dominant factor affecting infiltration needed for sustainable RBF production; (2) dam operation can influence pumping efficiency and prevent the development of an unsaturated zone beneath the riverbed only under conditions of sufficient riverbed permeability; (3) slow river velocity, caused by dam raising during summer months, may lead to sedimentation and deposition of fine-grained material within the riverbed, which may clog the riverbed, limiting recharge to the collector wells and contributing to the development of an unsaturated zone beneath the riverbed; and (4) higher river flow velocities, caused by dam lowering during winter storms, scour the riverbed an thus increase its permeability. These insights can be used as the basis for developing sustainable water management of a RBF system.

  13. Spontaneous emission factor for semiconductor superluminescent diodes Yongsheng Zhao, Weihua Han, Junfeng Song, Xuemei Li, Yang Liu, Dingsan Gao,

    E-Print Network [OSTI]

    Cao, Hui

    Spontaneous emission factor for semiconductor superluminescent diodes Yongsheng Zhao, Weihua Han emission factor is an important parameter for the characterization of semiconductor light emitting devices difference involved in each device. In this article, the spontaneous emission factor for superluminescent

  14. Applying Human Factors during the SIS Life Cycle

    SciTech Connect (OSTI)

    Avery, K.

    2010-05-05

    Safety Instrumented Systems (SIS) are widely used in U.S. Department of Energy's (DOE) nonreactor nuclear facilities for safety-critical applications. Although use of the SIS technology and computer-based digital controls, can improve performance and safety, it potentially introduces additional complexities, such as failure modes that are not readily detectable. Either automated actions or manual (operator) actions may be required to complete the safety instrumented function to place the process in a safe state or mitigate a hazard in response to an alarm or indication. DOE will issue a new standard, Application of Safety Instrumented Systems Used at DOE Nonreactor Nuclear Facilities, to provide guidance for the design, procurement, installation, testing, maintenance, operation, and quality assurance of SIS used in safety significant functions at DOE nonreactor nuclear facilities. The DOE standard focuses on utilizing the process industry consensus standard, American National Standards Institute/ International Society of Automation (ANSI/ISA) 84.00.01, Functional Safety: Safety Instrumented Systems for the Process Industry Sector, to support reliable SIS design throughout the DOE complex. SIS design must take into account human-machine interfaces and their limitations and follow good human factors engineering (HFE) practices. HFE encompasses many diverse areas (e.g., information display, user-system interaction, alarm management, operator response, control room design, and system maintainability), which affect all aspects of system development and modification. This paper presents how the HFE processes and principles apply throughout the SIS life cycle to support the design and use of SIS at DOE nonreactor nuclear facilities.

  15. Factors influencing methane distribution in Texas ground water

    SciTech Connect (OSTI)

    Zhang, C.; Grossman, E.L.; Ammerman, J.W. [Texas A and M Univ., College Station, TX (United States)

    1998-01-01

    To determine the factors that influence the distribution of methane in Texas ground water, water samples were collected from 40 wells in east-central and central Texas aquifers. Among the chemical parameters examined, sulfate is most important in controlling methane distribution. Methane occurs in high concentration in east-central Texas only where sulfate concentration is low, supporting the hypothesis that abundant microbial methane production does not begin until sulfate is depleted. Because water samples from central Texas are high in either oxygen or sulfate, methane concentrations are low in these waters. A positive correlation between methane and sulfate in these waters indicates a different, perhaps thermogenic, origin for the trace methane. The {sup 13}C/{sup 12}C ratios of dissolved methane ranged from {minus}80{per_thousand} to {minus}21{per_thousand} in east-central Texas and {minus}41.2{per_thousand} to {minus}8.5{per_thousand} in central Texas. Low values of < {minus}50{per_thousand} in the east-central Texas ground water indicate a microbial origin for methane and are consistent with the observed sulfate-methane relationship; high {sup 13}C/{sup 12}C ratios of > {minus}31{per_thousand} likely result from bacterial methane oxidation. Similarly, methane with high {sup 13}C/{sup 12}C ratios in central Texas may reflect partial oxidation of the methane pool. Overall, water samples from both regions show a positive correlation between sulfate concentration and the {sup 13}C/{sup 12}C ratio of methane, suggesting that methane oxidation may be associated with sulfate reduction in Texas ground water.

  16. Multifocal Glioblastoma Multiforme: Prognostic Factors and Patterns of Progression

    SciTech Connect (OSTI)

    Showalter, Timothy N.; Andrel, Jocelyn; Andrews, David W.; Curran, Walter J.; Daskalakis, Constantine; Werner-Wasik, Maria

    2007-11-01

    Purpose: To assess the progression patterns in patients with multifocal glioblastoma multiforme who had undergone whole brain radiotherapy (WBRT), the historical standard, versus three-dimensional conformal radiotherapy, and to identify predictive treatment and pretreatment factors. Methods and Materials: The records of 50 patients with multifocal glioblastoma multiforme treated with RT were reviewed. Univariate analyses were performed using survival methods and the Cox proportional hazards regression method. Multivariate analyses were performed using the Cox proportional hazards regression method. Results: The mean age was 61 years, and 71% had a Karnofsky performance status (KPS) score of {>=}70. Of the 50 patients, 32% underwent WBRT and 68%, three-dimensional conformal RT. Progression was local in all evaluable patients, as determined by imaging in 38 patients and early neurologic progression in 12. The median time to progression (TTP) was 3.1 months, and the median survival time (MST) was 8.1 months. The significant independent predictors of TTP on multivariate analysis were a KPS score <70 (p = 0.001), the extent of surgery (p = 0.040), a radiation dose <60 Gy (p = 0.027), and the lack of chemotherapy (p = 0.001). The significant independent predictors of a reduced MST were a KPS score <70 (p = 0.022) and the absence of salvage surgery (p = 0.011) and salvage chemotherapy (p = 0.003). Conclusion: Local progression was observed in all patients. On multivariate analysis, no significant difference was found in the TTP or MST between three-dimensional conformal radiotherapy and WBRT. The KPS was a consistent independent predictor of both TTP and MST. On the basis of the progression pattern, we do not recommend WBRT as a mandatory component of the treatment of multifocal glioblastoma multi0011for.

  17. Human Factors Considerations in New Nuclear Power Plants: Detailed Analysis.

    SciTech Connect (OSTI)

    OHara,J.; Higgins, J.; Brown, W.; Fink, R.

    2008-02-14

    This Nuclear Regulatory Commission (NRC) sponsored study has identified human-performance issues in new and advanced nuclear power plants. To identify the issues, current industry developments and trends were evaluated in the areas of reactor technology, instrumentation and control technology, human-system integration technology, and human factors engineering (HFE) methods and tools. The issues were organized into seven high-level HFE topic areas: Role of Personnel and Automation, Staffing and Training, Normal Operations Management, Disturbance and Emergency Management, Maintenance and Change Management, Plant Design and Construction, and HFE Methods and Tools. The issues where then prioritized into four categories using a 'Phenomena Identification and Ranking Table' methodology based on evaluations provided by 14 independent subject matter experts. The subject matter experts were knowledgeable in a variety of disciplines. Vendors, utilities, research organizations and regulators all participated. Twenty issues were categorized into the top priority category. This Brookhaven National Laboratory (BNL) technical report provides the detailed methodology, issue analysis, and results. A summary of the results of this study can be found in NUREG/CR-6947. The research performed for this project has identified a large number of human-performance issues for new control stations and new nuclear power plant designs. The information gathered in this project can serve as input to the development of a long-term strategy and plan for addressing human performance in these areas through regulatory research. Addressing human-performance issues will provide the technical basis from which regulatory review guidance can be developed to meet these challenges. The availability of this review guidance will help set clear expectations for how the NRC staff will evaluate new designs, reduce regulatory uncertainty, and provide a well-defined path to new nuclear power plant licensing.

  18. Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors

    SciTech Connect (OSTI)

    Ilas, Dan

    2013-10-01

    An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enriched uranium (HEU) and LEU HFIR configurations, and discusses the impact that the conversion to LEU may have on these quantities. A time-averaging procedure was developed to calculate the isotopic (gas and poisons) production in reflector. The sensitivity of this approach to different approximations is gauged and documented. The results show that the gas is produced in the beryllium reflector at a total rate of 0.304 g/cycle for the HEU configuration; this rate increases by ~12% for the LEU case. The total tritium production rate in reflector is 0.098 g/cycle for the HEU core and approximately 11% higher for the LEU core. A significant increase (up to ~25%) in the neutronic poisons production in the reflector during the operation cycles is observed for the LEU core, compared to the HEU case, for regions close to the core s horizontal midplane. The poisoning level of the reflector may increase by more than two orders of magnitude during long periods of downtime. The heating rate in the reflector is estimated to be approximately 20% lower for the LEU core than for the HEU core. The decrease is due to a significantly lower contribution of the heating produced by the gamma radiation for the LEU core. Both the isotopic (gas and neutronic poisons) production and the heating rates are spatially non-uniform throughout the beryllium reflector volume. The maximum values typically occur in the removable reflector and close to the midplane.

  19. An Integrated Suite of Tools to support Human Factors Engineering

    SciTech Connect (OSTI)

    Jacques V Hugo

    2001-08-01

    Human Factors Engineering (HFE) work for the nuclear industry imposes special demands on the practitioner in terms of the scope, complexity and safety requirements for humans in nuclear installations. Unfortunately HFE lags behind other engineering disciplines in the development and use of modern, powerful tools for the full range of analysis and design processes. HFE does not appear to be an attractive market for software and hardware developers and as a result, HFE practitioners usually have to rely on inefficient general-purpose tools like standard office software, or they have to use expensive special-purpose tools that offer only part of the solution they require and which also do not easily integrate with other tools. There have been attempts to develop generic software tools to support the HFE analyst and also to achieve some order and consistency in format and presentation. However, in spite of many years of development, very few tools have emerged that have achieved these goals. This would suggest the need for special tools, but existing commercial products have been found inadequate and to date not a single tool has been developed that adequately supports the special requirements of HFE work for the nuclear industry. This paper describes an integrated suite of generic as well as purpose-built tools that facilitate information solicitation, issues tracking, work domain analysis, functional requirements analysis, function allocation, operational sequence analysis, task analysis and development of HSI design requirements. In combination, this suite of tools supports the analytical as well as the representational aspects of key HFE activities primarily for new NPPs, including capturing information from subject matter experts and various source documents directly into the appropriate tool and then linking, analyzing and extending that information further to represent detailed functional and task information, and ultimately HSI design requirements. The paper also describes a tool developed especially for functional requirements analysis, function allocation, and task analysis.

  20. Brain-derived neurotrophic factor restores synaptic plasticity in a knock-in mouse model of Huntington's disease.

    E-Print Network [OSTI]

    2007-01-01

    term potentiation by brain-derived neurotrophic factor. JNeurobiology of Disease Brain-Derived Neurotrophic Factorbe rescued with brain-derived neurotrophic factor (BDNF).

  1. Brain-derived neurotrophic factor promotes long-term potentiation-related cytoskeletal changes in adult hippocampus.

    E-Print Network [OSTI]

    Rex, Christopher S; Lin, Ching-Yi; Kramár, Eniko A; Chen, Lulu Y; Gall, Christine M; Lynch, Gary

    2007-01-01

    RC, Nicoll RA (1998) Brain-derived neurotrophic fac- tor (term potentiation by brain-derived neurotrophic factor. JSystems/Cognitive Brain-Derived Neurotrophic Factor Promotes

  2. Economic Conditions and Factors Affecting New Nuclear Power Deployment

    SciTech Connect (OSTI)

    Harrison, Thomas J.

    2014-10-01

    This report documents work performed in support of the US Department of Energy Office of Nuclear Energy’s Advanced Small Modular Reactor (AdvSMR) program. The report presents information and results from economic analyses to describe current electricity market conditions and those key factors that may impact the deployment of AdvSMRs or any other new nuclear power plants. Thus, this report serves as a reference document for DOE as it moves forward with its plans to develop advanced reactors, including AdvSMRs. For the purpose of this analysis, information on electricity markets and nuclear power plant operating costs will be combined to examine the current state of the nuclear industry and the process required to successfully move forward with new nuclear power in general and AdvSMRs in particular. The current electricity market is generally unfavorable to new nuclear construction, especially in deregulated markets with heavy competition from natural gas and subsidized renewables. The successful and profitable operation of a nuclear power plant (or any power plant) requires the rate at which the electricity is sold to be sufficiently greater than the cost to operate. The wholesale rates in most US markets have settled into values that provide profits for most operating nuclear power plants but are too low to support the added cost of capital recovery for new nuclear construction. There is a strong geographic dependence on the wholesale rate, with some markets currently able to support new nuclear construction. However, there is also a strong geographic dependence on pronuclear public opinion; the areas where power prices are high tend to have unfavorable views on the construction of new nuclear power plants. The use of government-backed incentives, such as subsidies, can help provide a margin to help justify construction projects that otherwise may not seem viable. Similarly, low interest rates for the project will also add a positive margin to the economic analysis. In both cases, the profitable price point is decreased, making more markets open to profitable entry. Overall, the economic attractiveness of a nuclear power construction project is not only a function of its own costs, but a function of the market into which it is deployed. Many of the market characteristics are out of the control of the potential nuclear power plant operators. The decision-making process for the power industry in general is complicated by the short-term market volatility in both the wholesale electricity market and the commodity (natural gas) market. Decisions based on market conditions today may be rendered null and void in six months. With a multiple-year lead time, nuclear power plants are acutely vulnerable to market corrections.

  3. Key Response Planning Factors for the Aftermath of Nuclear Terrorism

    SciTech Connect (OSTI)

    Buddemeier, B R; Dillon, M B

    2009-01-21

    Despite hundreds of above-ground nuclear tests and data gathered from Hiroshima and Nagasaki, the effects of a ground-level, low-yield nuclear detonation in a modern urban environment are still the subject of considerable scientific debate. Extensive review of nuclear weapon effects studies and discussions with nuclear weapon effects experts from various federal agencies, national laboratories, and technical organizations have identified key issues and bounded some of the unknowns required to support response planning for a low-yield, ground-level nuclear detonation in a modern U.S. city. This study, which is focused primarily upon the hazards posed by radioactive fallout, used detailed fallout predictions from the advanced suite of three-dimensional (3-D) meteorology and plume/fallout models developed at Lawrence Livermore National Laboratory (LLNL), including extensive global Key Response Planning Factors for the Aftermath of Nuclear Terrorism geographical and real-time meteorological databases to support model calculations. This 3-D modeling system provides detailed simulations that account for complex meteorology and terrain effects. The results of initial modeling and analysis were presented to federal, state, and local working groups to obtain critical, broad-based review and feedback on strategy and messaging. This effort involved a diverse set of communities, including New York City, National Capitol Regions, Charlotte, Houston, Portland, and Los Angeles. The largest potential for reducing casualties during the post-detonation response phase comes from reducing exposure to fallout radiation. This can be accomplished through early, adequate sheltering followed by informed, delayed evacuation.B The response challenges to a nuclear detonation must be solved through multiple approaches of public education, planning, and rapid response actions. Because the successful response will require extensive coordination of a large number of organizations, supplemented by appropriate responses by local responders and the general population within the hazard zones, regional planning is essential to success. The remainder of this Executive Summary provides summary guidance for response planning in three areas: (1) Public Protection Strategy details the importance of early, adequate shelter followed by informed evacuation. (2) Responder Priorities identify how to protect response personnel, perform regional situational assessment, and support public safety. (3) Key Planning Considerations refute common myths and provide important information on planning how to respond in the aftermath of nuclear terrorism.

  4. Spatial Trends and Factors of Pimple Mound Formation in East-Central Texas 

    E-Print Network [OSTI]

    Robinson, Chance

    2012-07-16

    Formation Soils can be defined as ?dynamic natural bodies having properties derived from the combined effects of climate and biotic activities, as modified by topography, acting on parent materials over periods of time,? and yet these five soil forming... factors (climate, biota, topography, parent material, and time) are never independent of one another, but always interdependent with each factor exerting its affect on soil properties (Brady and Weil, 2008; Jenny, 1941). These five factors should...

  5. Stochastic volatility models with persistent latent factors: theory and its applications to asset prices 

    E-Print Network [OSTI]

    Lee, Hyoung Il

    2008-10-10

    filter. See, e.g., Tanizaki (1996) for a general introduction to the density-based Kalman fil- ter. The second approach applies the standard Bayesian procedure and estimates the unknown parameters and latent factor by their posterior means, which... transition and persistent la- tent factors. We argue that this model has advantages over theconventional stochastic model for the persistent volatility factor. Though the linear filtering is widely used in the state space model, the simulation result, as well...

  6. The characterization of porous media by porosity, permeability, formation factor, and mercury injection capillary 

    E-Print Network [OSTI]

    McLallen, Dewitt Liggett

    1959-01-01

    , foraetion factor, ead the aercury injection capillary pressure - seturatioa relstioaship. Such correlstioas are of interest not only ia the charecterisetioa of porous asdie froa a theoretical steadpoiat, but else as sa eid ia the iater- pretetion..., it is possible to derive reletioas betweea porosity, poraeebility, foraetioa factor, ead s capillary pressure persaeter. These ideal relstioas differ frca thosecccurring iu actual porous uedia by a faster, er factors, depeudiug ou the deviatiou of the pere...

  7. A model for computer frustration: the role of instrumental and dispositional factors

    E-Print Network [OSTI]

    Shneiderman, Ben

    A model for computer frustration: the role of instrumental and dispositional factors on incident 20742, USA Available online 16 April 2004 Abstract Frustration is almost universally accepted

  8. Functional Expression Cloning of Nanog, a Pluripotency Sustaining Factor in Embryonic Stem Cells. 

    E-Print Network [OSTI]

    Chambers, Ian; Colby, Douglas; Robertson, Morag; Nichols, Jennifer; Lee, Sonia; Tweedie, Susan; Smith, Austin G

    2003-01-01

    Embryonic stem (ES) cells undergo extended proliferation while remaining poised for multilineage differentiation. A unique network of transcription factors may characterize self-renewal and simultaneously suppress ...

  9. Influence of graphene on quality factor variation in a silicon ring resonator

    SciTech Connect (OSTI)

    Kou, Rai, E-mail: takahashi.rai@lab.ntt.co.jp [NTT Nanophotonics Center, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Tanabe, Shinichi; Hibino, Hiroki [NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Tsuchizawa, Tai; Yamada, Koji [NTT Nanophotonics Center, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Yamamoto, Tsuyoshi [NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan); Nakajima, Hirochika [Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan)

    2014-03-03

    Selectively patterned graphene is integrated onto a silicon ring resonator to investigate the quality factor (Q factor) variation. The Q factor sharply decreases from 7900 to 1200 as the patterned graphene length increases from 0 to 20??m. A numerical estimation, which takes into account optical absorption by graphene, shows an exponential damping of the Q factor with increasing graphene length and is consistent with the experimental result. We expect these fundamental characterizations to be helpful in developing graphene-integrated silicon photonics applications.

  10. Factored Language Models and Generalized Parallel Backoff Jeff A. Bilmes Katrin Kirchhoff

    E-Print Network [OSTI]

    Washington at Seattle, University of

    model, a word is viewed as a vec- tor of k factors, so that wt {f1 t , f2 t , . . . , fK t }. Fac- tors. An FLM is a model over factors, i.e., p(f1:K t |f1:K t-1:t-n), that can be factored as a product of probabilities of the form p(f|f1, f2, . . . , fN ). Our task is twofold: 1) find an appropriate set of factors

  11. Multiple Mechanisms are Responsible for Transactivation of the Epidermal Growth Factor Receptor in Mammary Epithelial Cells

    SciTech Connect (OSTI)

    Rodland, Karin D.; Bollinger, Nikki; Ippolito, Danielle L.; Opresko, Lee; Coffey, Robert J.; Zangar, Richard C.; Wiley, H. S.

    2008-11-14

    REVIEW ENTIRE DOCUMENT AT: https://pnlweb.pnl.gov/projects/bsd/ERICA%20Manuscripts%20for%20Review/KD%20Rodland%20D7E80/HMEC_transactivation_ms01_15+Figs.pdf ABSTRACT: Using a single nontransformed strain of human mammary epithelial cells, we found that the ability of multiple growth factors and cytokines to induce ERK phosphorylation was dependent on EGFR activity. These included lysophosphatidic acid (LPA), uridine triphosphate, growth hormone, vascular endothelial growth factor, insulin-like growth factor-1 (IGF-1), and tumor necrosis factoralpha. In contrast, hepatocyte growth factor could stimulate ERK phosphorylation independent of EGFR activity...

  12. Social media impact factor: the top ten dermatology journals on facebook and twitter

    E-Print Network [OSTI]

    Karimkhani, Chante; Gamble, Ryan; Dellavalle, Robert P

    2014-01-01

    the enormous worldwide impact of social media, journals and4 April 2014 Commentary Social media impact factor: the topmay want to take social media impact into account. Key

  13. Wagstaff Jr.'s book “The Joy of Factoring” a 2014 CHOICE ...

    E-Print Network [OSTI]

    $author.value

    Virtually every algorithm is presented with pseudocode for the convenience of computer-oriented readers. Lastly, Wagstaff exposes readers to factoring using ...

  14. Technology push or market pull success factors for the penetration of

    E-Print Network [OSTI]

    Noé, Reinhold

    Technology push or market pull ­ success factors for the penetration of decentralized and smart grids #12;Technology push or market pull ­ success factors for the penetration of decentralized Director, 100% erneuerbar Stiftung Technology push or market pull. Why we ask this question. Classical

  15. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 15 December 2003 1. The attached updated area of the Army technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  16. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of the local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 01 May 1998 1. The following is a list of updated 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994. The updated ACF

  17. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 2 January 2003 1. The attached updated area cost technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  18. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ). The ACF index is the combination factors of local construction costs of labor, material, and equipmentAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 15 March 2002 1. The attached updated area cost manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994. The updated ACF

  19. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, material1 AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 10 April 2001 1. The attached updated area cost technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  20. AREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in the continental US). The ACF index is the combination factors of local construction costs of labor, materialAREA COST FACTOR INDEXES PAX NEWSLETTER NO. 3.2.1 10 March 2000 1. The attached updated area cost technical manual TM 5-800-4, Programming Cost Estimates for Military Construction, dated May 1994

  1. Sox6 Up-Regulation by Macrophage Migration Inhibitory Factor Promotes Survival and Maintenance of Mouse

    E-Print Network [OSTI]

    Sox6 Up-Regulation by Macrophage Migration Inhibitory Factor Promotes Survival and Maintenance migration inhibitory factor (MIF) has important roles in supporting the proliferation and/or survival) of the adult mouse forebrain. Retroviral overexpression of Sox6 in NSPCs increases the number of primary

  2. Detection of growth factor binding to gelatin and heparin using a photonic crystal optical biosensor

    E-Print Network [OSTI]

    Cunningham, Brian

    Detection of growth factor binding to gelatin and heparin using a photonic crystal optical: Photonic crystal biosensor Label-free Gelatin Heparin Growth factor Drug­carrier Drug­carrier interactions timed release. A novel photonic crystal biosensor was used to investigate a gelatin­protein controlled

  3. Test Factoring: Focusing Test Suites for the Task at Hand Michael D. Ernst, research advisor

    E-Print Network [OSTI]

    Liskov, Barbara

    Test Factoring: Focusing Test Suites for the Task at Hand David Saff Michael D. Ernst, research and Subject Descriptors: D.2.5 (Testing and Debug­ ging): Testing tools General Terms: Algorithms, Design, Performance, Verification Keywords: test factoring, mock objects, unit testing 1. Problem: slow, unfocused

  4. Test Factoring: Focusing Test Suites for the Task at Hand Michael D. Ernst, research advisor

    E-Print Network [OSTI]

    Liskov, Barbara

    Test Factoring: Focusing Test Suites for the Task at Hand David Saff Michael D. Ernst, research and Subject Descriptors: D.2.5 (Testing and Debug- ging): Testing tools General Terms: Algorithms, Design, Performance, Verification Keywords: test factoring, mock objects, unit testing 1. Problem: slow, unfocused

  5. A science based emission factor for particulate matter emitted from cotton harvesting 

    E-Print Network [OSTI]

    Wanjura, John David

    2009-05-15

    and PM2.5 emission factors were developed from TSP emission concentration measurements converted to emission rates using the results of PSD analysis. The total TSP, PM10, and PM2.5 emission factors resulting from the source measurement protocol are 1...

  6. An Investigation of Factors Influencing an Organisation's Intention to Adopt Cloud Computing

    E-Print Network [OSTI]

    An Investigation of Factors Influencing an Organisation's Intention to Adopt Cloud Computing Nouf University of Southampton Southampton, United Kingdom gbw@ecs.soton.ac.uk Abstract-- Cloud computing the factors that may influence an organisation's intention to adopt cloud computing in Saudi Arabia. We

  7. SUBMITTED TO IEEE TRANSACTIONS ON POWER SYSTEMS, FEBRUARY 2002 1 Human Factors Aspects of Power System

    E-Print Network [OSTI]

    SUBMITTED TO IEEE TRANSACTIONS ON POWER SYSTEMS, FEBRUARY 2002 1 Human Factors Aspects of Power with human factors aspects of utilizing color contours to visualize electric power system bus voltage in the quickest solution times. Testing was done using a modified version of the IEEE 118 bus system. Index Terms--Power

  8. Regulation and Compensation of Source Harmonics for the Boost ConverterBased Power Factor

    E-Print Network [OSTI]

    Perreault, Dave

    Regulation and Compensation of Source Harmonics for the Boost Converter­Based Power Factor of a diode bridge and associated boost converter. This circuit is the most widely employed of the fam- ily for the boost­ based power factor precompensator which guarantees fast regulation of the output voltage towards

  9. BIFURCATION ANALYSIS OF A POWER-FACTOR-CORRECTION BOOST CONVERTER: UNCOVERING FAST-SCALE INSTABILITY

    E-Print Network [OSTI]

    Tse, Chi K. "Michael"

    BIFURCATION ANALYSIS OF A POWER-FACTOR-CORRECTION BOOST CONVERTER: UNCOVERING FAST to a power-factor-correc- tion (PFC) boost converter to examine the fast-scale insta- bility problem to a current-programmed boost converter. In this paper, we study the onset of period-doubling (fast-scale) in

  10. Identification and Characterization of the Arabidopsis Orthologs of Nuclear Transport Factor 2, the Nuclear

    E-Print Network [OSTI]

    Meier, Iris

    Identification and Characterization of the Arabidopsis Orthologs of Nuclear Transport Factor 2, the Nuclear Import Factor of Ran1 Qiao Zhao2 , Sara Leung2 , Anita H. Corbett, and Iris Meier* Plant Cellular, and nuclear envelope formation. Nuclear import of Ran relies on a small RanGDP-binding protein, Nuclear

  11. Coupling control and human factors in mathematical models of complex systems

    E-Print Network [OSTI]

    Melnik, Roderick

    Coupling control and human factors in mathematical models of complex systems Roderick V.N. Melnik à that in the analysis and control of such systems, human factors should not be eliminated by conventional formal transportation systems (ITS) theory and practice, the problem of speed control, considered here as a decision

  12. THE DYNAMICAL STRUCTURE FACTOR AND CRITICAL BEHAVIOR OF A TRAFFIC FLOW MODEL

    E-Print Network [OSTI]

    Lübeck, Sven

    261 THE DYNAMICAL STRUCTURE FACTOR AND CRITICAL BEHAVIOR OF A TRAFFIC FLOW MODEL L. ROTERS, S. L. The behavior of the model is determined by three parameters, the maximal velocity v max , the noise parameter P of the dynamical structure factor of the Nagel­ Schreckenberg traffic flow model based on the local occupation

  13. Yeast GCN4 as a probe for oncogenesis by AP-1. transcription factors

    E-Print Network [OSTI]

    Yeast GCN4 as a probe for oncogenesis by AP-1. transcription factors: transcnpuonal activation for oncogenesis but are distinct from generic transcriptional activation domains. In addition, these observations. IKey Words: Yeast GCN4; Jun; Fos; AP-1 transcription factors; oncogenesis; cellular transformation

  14. Automatic Test Factoring for Java David Saff Shay Artzi Jeff H. Perkins Michael D. Ernst

    E-Print Network [OSTI]

    Ernst, Michael

    Automatic Test Factoring for Java David Saff Shay Artzi Jeff H. Perkins Michael D. Ernst MIT {saff,artzi,jhp,mernst}@csail.mit.edu Abstract Test factoring creates fast, focused unit tests from slow system-wide tests; each new unit test exercises only a subset of the functionality exercised

  15. k32-type low-frequency bimorph with giant electromechanical coupling factor

    E-Print Network [OSTI]

    Cao, Wenwu

    k32-type low-frequency bimorph with giant electromechanical coupling factor Gang Liu1,3 , Shiming 2013 Published online 25 July 2013 Keywords bimorph, PIN-PMN-PT, piezoelectric, electromechanical features very large electromechanical coupling factor (0.80) and very low working frequency (less than half

  16. PCA & Matrix Factorizations for Learning, ICML 2005 Tutorial, Chris Ding 56 Part 2. Spectral Clustering from

    E-Print Network [OSTI]

    Ding, Chris

    PCA & Matrix Factorizations for Learning, ICML 2005 Tutorial, Chris Ding 56 Part 2. Spectral Clustering from Matrix Perspective A brief tutorial emphasizing recent developments (More detailed tutorial is given in ICML'04 ) #12;PCA & Matrix Factorizations for Learning, ICML 2005 Tutorial, Chris Ding 57 From

  17. Comparison of Approximation Methods for Computing Tolerance Factors for a Multivariate

    E-Print Network [OSTI]

    Krishnamoorthy, Kalimuthu

    Comparison of Approximation Methods for Computing Tolerance Factors for a Multivariate Normal approximation methods for computing the tolerance factors of a multivariate normal population. These approximate on the multivariate setup is rather limited, how- ever. The first attempt at constructing tolerance regions

  18. Risk Assessment Using Local Outlier Factor Algorithm Bozidara Cvetkovi1,2

    E-Print Network [OSTI]

    Lu?trek, Mitja

    Risk Assessment Using Local Outlier Factor Algorithm Bozidara Cvetkovi1,2 , Mitja Lustrek1,2 1 the unsupervised machine-learning algorithm named Local Outlier Factor (LOF), for health risk assessment machine-learning, LOF, nominal attributes, health risk assessment 1 Introduction The purpose

  19. Discovering functional transcription-factor combinations in the human cell cycle

    E-Print Network [OSTI]

    Church, George M.

    Discovering functional transcription-factor combinations in the human cell cycle Zhou Zhu,1 Jay-factor (TF) combinations using phylogenetically conserved sequences and microarray-based expression data of binding sites in the vicinity of one another and whether these combinations result in more coherent

  20. Comparative Study of Power Factor Correction Converters For Single Phase Half-Bridge Inverters

    E-Print Network [OSTI]

    Tolbert, Leon M.

    of input current harmonic distortion and en- ergy efficiency. I. INTRODUCTION Uninterruptible power supplyComparative Study of Power Factor Correction Converters For Single Phase Half-Bridge Inverters Gui an isolation transformer, and sinu- soidal input currents if a power factor correction (PFC) con- verter

  1. Acceleration of the Jacobi iterative method by factors exceeding 100 using scheduled relaxation

    E-Print Network [OSTI]

    Mittal, Rajat

    Acceleration of the Jacobi iterative method by factors exceeding 100 using scheduled relaxation Abstract We present a methodology that accelerates the classical Jacobi iterative method by factors of the Jacobi method. Mathematical conditions that maximize the convergence rate are derived and optimal schemes

  2. A Generalized Approach to Determination of Magnetic Shielding Factor for Physics Package of Rb Atomic Clock

    E-Print Network [OSTI]

    S. S. Raghuwanshi; G. M. Saxena

    2009-10-21

    In this paper we report generalized approach to calculate magnetic shielding factor (MSF) of multi-layer mu metal concentric cylindrical shields for arbitrary length to radius ratios and different values of magnetic permeability. We report in this paper the generalized results on the magnetic shielding factor of multi-layered magnetic shields used in Rb atomic clocks

  3. LWDA Shelter Shielding Factor Ylva Pihlstrm (UNM), Dan Mertely (NRAO) & Eduardo Aguilera (UNM)

    E-Print Network [OSTI]

    Ellingson, Steven W.

    1 LWDA Shelter Shielding Factor Ylva Pihlström (UNM), Dan Mertely (NRAO) & Eduardo Aguilera (UNM) 8/17/06 Summary We report on measurements of the LWDA shelter shielding factors. From these measurements we adopt a minimum shielding of 30 dB for frequencies 0.2­3 GHz. On average, the shielding in this frequency range

  4. Social Network Collaborative Filtering Framework and Online Trust Factors: a Case Study on Facebook

    E-Print Network [OSTI]

    Fong, Chi Chiu "Simon"

    Social Network Collaborative Filtering Framework and Online Trust Factors: a Case Study on Facebook by data-mining over a survey dataset provided by The Facebook Project.1 The quantitatively estimated trust factors can be used as input parameters in the CF algorithm. Facebook is taken as a case study here

  5. Factors Associated with Bicycle Ownership and Use: A Study of 6 Small U.S. Cities

    E-Print Network [OSTI]

    Handy, Susan L.

    Factors Associated with Bicycle Ownership and Use: A Study of 6 Small U.S. Cities Yan Xing to the Committee on Bicycle Transportation: ANF20 Word Count: 5498 Number of figures: 2 Number of tables: 4 #12;Xing, Handy, and Buehler 2 Factors Associated with Bicycle Ownership and Use: A Study of 6 Small U

  6. Which Factors Affect the Success or Failure of Eradication Campaigns against Alien Species?

    E-Print Network [OSTI]

    Kratochvíl, Lukas

    Which Factors Affect the Success or Failure of Eradication Campaigns against Alien Species? Therese, The Netherlands Abstract Although issues related to the management of invasive alien species are receiving factors that relate to the success of management campaigns aimed at eradicating invasive alien

  7. A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution

    E-Print Network [OSTI]

    Botchev, Mike

    A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution Modeling + M on the one hand and its e#ciency on the other hand. For example, in air pollution modeling, AMF has been factorization, large sparse linear systems, sti# ODEs, method of lines, Rosenbrock methods, air pollution

  8. A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution

    E-Print Network [OSTI]

    Botchev, Mike

    A New Approximate Matrix Factorization for Implicit Time Integration in Air Pollution Modeling M on the one hand and its efficiency on the other hand. For example, in air pollution modeling, AMF has been factorization, large sparse linear systems, stiff ODEs, method of lines, Rosenbrock methods, air pollution

  9. Evidence for a Serum Factor That Initiates the Re-calcification of Demineralized Bone*S

    E-Print Network [OSTI]

    Price, Paul A.

    Evidence for a Serum Factor That Initiates the Re-calcification of Demineralized Bone*S Received to demineralization, and the re-calcified bone is palpably hard. Re-calcified bone mineral is com- parable- induced re-calcification of demineralized bone suggest that the serum calcification factor identified

  10. Fabrication technique for filling-factor tunable titanium dioxide colloidal crystal replicas

    E-Print Network [OSTI]

    Fabrication technique for filling-factor tunable titanium dioxide colloidal crystal replicas; accepted 1 October 2002 Filling-factor tunable titanium dioxide replicas of colloidal crystals were was formed in voids of latex colloidal crystals, the latex was removed by calcination. By applying the LPD

  11. Role of Brain-Derived Neurotrophic Factor in Target Invasion in the Gustatory System

    E-Print Network [OSTI]

    Ibáñez, Carlos

    Role of Brain-Derived Neurotrophic Factor in Target Invasion in the Gustatory System Thomas of Neuroscience, Karolinska Institutet, S-171 77 Stockholm, Sweden Brain-derived neurotrophic factor (BDNF of the pos- terior part of the tongue is derived from the petrosal ganglion, whereas trigeminal neurons

  12. Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to High Momentum Transfer

    E-Print Network [OSTI]

    Puckett, Andrew J R

    2015-01-01

    The electromagnetic form factors of the nucleon characterize the effect of its internal structure on its response to an electromagnetic probe as studied in elastic electron-nucleon scattering. These form factors are functions of the squared four-momentum transfer $Q^2$ between the electron and the proton. The two main classes of observables of this reaction are the scattering cross section and polarization asymmetries, both of which are sensitive to the form factors in different ways. When considering large momentum transfers, double-polarization observables offer superior sensitivity to the electric form factor. This thesis reports the results of a new measurement of the ratio of the electric and magnetic form factors of the proton at high momentum transfer using the recoil polarization technique. A polarized electron beam was scattered from a liquid hydrogen target, transferring polarization to the recoiling protons. These protons were detected in a magnetic spectrometer which was used to reconstruct their ...

  13. An Information-Based Framework for Asset Pricing: X-Factor Theory and its Applications

    E-Print Network [OSTI]

    Macrina, Andrea

    2008-01-01

    A new framework for asset pricing based on modelling the information available to market participants is presented. Each asset is characterised by the cash flows it generates. Each cash flow is expressed as a function of one or more independent random variables called market factors or "X-factors". Each X-factor is associated with a "market information process", the values of which become available to market participants. In addition to true information about the X-factor, the information process contains an independent "noise" term modelled here by a Brownian bridge. The information process thus gives partial information about the X-factor, and the value of the market factor is only revealed at the termination of the process. The market filtration is assumed to be generated by the information processes associated with the X-factors. The price of an asset is given by the risk-neutral expectation of the sum of the discounted cash flows, conditional on the information available from the filtration. The theory i...

  14. g-factor anisotropy in nanowire-based InAs quantum dots

    SciTech Connect (OSTI)

    D'Hollosy, Samuel; Fábián, Gábor; Baumgartner, Andreas; Schönenberger, Christian; Nygård, Jesper

    2013-12-04

    The determination and control of the electron g-factor in semiconductor quantum dots (QDs) are fundamental prerequisites in modern concepts of spintronics and spin-based quantum computation. We study the dependence of the g-factor on the orientation of an external magnetic field in quantum dots (QDs) formed between two metallic contacts on stacking fault free InAs nanowires. We extract the g-factor from the splitting of Kondo resonances and find that it varies continuously in the range between |g*| = 5 and 15.

  15. Effect of environmental factors on film badge dosimetry readings of dental office personnel

    SciTech Connect (OSTI)

    Collett, W.K.; Kaugars, G.E.; Broga, D.W. (Univ. of Florida, Gainesville (USA))

    1990-12-01

    Inadvertent exposure of film badges to environmental factors may produce fogging of the film and yield higher radiation exposure readings. Common environmental factors in everyday living were studied to assess their effect on film badge readings. Only heat appeared to have any significant effect, because moisture, chemicals, pressure, cold temperature, and non-work-related electromagnetic radiation did not substantially alter film badge readings. Therefore not all unexplained high readings on personnel film badge reports may be due to heat or other common environmental factors evaluated in this study.

  16. Expansion of X-ray form factor for close shell using uncorrelated wave function

    SciTech Connect (OSTI)

    AL-Robayi, Enas M.

    2013-12-16

    The atomic scattering factor has been studied for Be+ve, and B+2ve ions using the uncorrelated wave function (Hartree-Fock (HF)) for inter particle electronic shells. The physical importance of this factor appears in its relation to several important atomic properties as, the coherent scattering intensity, the total scattering intensity, the incoherent scattering function, the coherent scattering cross section, the total incoherent cross section, the nuclear magnetic shielding constant, the geometrical structure factor. Also there is one atomic properties the one particle radial density distribution function D(r)has been studied using the partitioning technique.

  17. Parity-Violating Electron Scattering and the Electric and Magnetic Strange Form Factors of the Nucleon

    E-Print Network [OSTI]

    D. S. Armstrong; R. D. McKeown

    2012-07-22

    Measurement of the neutral weak vector form factors of the nucleon provides unique access to the strange quark content of the nucleon. These form factors can be studied using parity-violating electron scattering. A comprehensive program of experiments has been performed at three accelerator laboratories to determine the role of strange quarks in the electromagnetic form factors of the nucleon. This article reviews the remarkable technical progress associated with this program, describes the various methods used in the different experiments, and summarizes the physics results along with recent theoretical calculations.

  18. Nuclear physics in soft-wall AdS/QCD: Deuteron electromagnetic form factors

    E-Print Network [OSTI]

    Thomas Gutsche; Valery E. Lyubovitskij; Ivan Schmidt; Alfredo Vega

    2015-06-02

    We present a high-quality description of the deuteron electromagnetic form factors in a soft-wall AdS/QCD approach. We first propose an effective action describing the dynamics of the deuteron in the presence of an external vector field. Based on this action the deuteron electromagnetic form factors are calculated, displaying the correct 1/Q^10 power scaling for large Q^2 values. This finding is consistent with quark counting rules and the earlier observation that this result holds in confining gauge/gravity duals. The Q^2 dependence of the deuteron form factors is defined by a single and universal scale parameter kappa, which is fixed from data.

  19. Spatial correction factors for YALINA Booster facility loaded with medium and low enriched fuels

    SciTech Connect (OSTI)

    Talamo, A.; Gohar, Y. [Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL 60439 (United States); Bournos, V.; Fokov, Y.; Kiyavitskaya, H.; Routkovskaya, C. [Joint Inst. for Power and Nuclear Research-Sosny, 99 Academician A.K.Krasin Str, Minsk 220109 (Belarus)

    2012-07-01

    The Bell and Glasstone spatial correction factor is used in analyses of subcritical assemblies to correct the experimental reactivity as function of the detector position. Besides the detector position, several other parameters affect the correction factor: the energy weighting function of the detector, the detector size, the energy-angle distribution of source neutrons, and the reactivity of the subcritical assembly. This work focuses on the dependency of the correction factor on the detector material and it investigates the YALINA Booster subcritical assembly loaded with medium (36%) and low (10%) enriched fuels. (authors)

  20. Modification of generalized vector form factors and transverse charge densities of the nucleon in nuclear matter

    E-Print Network [OSTI]

    Jung, Ju-Hyun; Kim, Hyun-Chul

    2015-01-01

    We investigate the medium modification of the generalized vector form factors of the nucleon, which include the electromagnetic and energy-momentum tensor form factors, based on an in-medium modified $\\pi$-$\\rho$-$\\omega$ soliton model. We find that the vector form factors of the nucleon in nuclear matter fall off faster than those in free space, which implies that the charge radii of the nucleon become larger in nuclear medium than in free space. We also compute the corresponding transverse charge densities of the nucleon in nuclear matter, which clearly reveal the increasing of the nucleon size in nuclear medium.

  1. Modification of generalized vector form factors and transverse charge densities of the nucleon in nuclear matter

    E-Print Network [OSTI]

    Ju-Hyun Jung; Ulugbek Yakhshiev; Hyun-Chul Kim

    2015-12-23

    We investigate the medium modification of the generalized vector form factors of the nucleon, which include the electromagnetic and energy-momentum tensor form factors, based on an in-medium modified $\\pi$-$\\rho$-$\\omega$ soliton model. We find that the vector form factors of the nucleon in nuclear matter fall off faster than those in free space, which implies that the charge radii of the nucleon become larger in nuclear medium than in free space. We also compute the corresponding transverse charge densities of the nucleon in nuclear matter, which clearly reveal the increasing of the nucleon size in nuclear medium.

  2. Suppressed Critical Current in Superconducting Nanowire Single-Photon Detectors With High Fill-Factors

    E-Print Network [OSTI]

    Yang, Joel K. W.

    In this work we present a new fabrication process that enabled the fabrication of superconducting nanowire single photon detectors SNSPD with fill-factors as high as 88% with gaps between nanowires as small as 12 nm. This ...

  3. Factors influencing career interest among majority and minority natural resource professionals in the southeastern United States 

    E-Print Network [OSTI]

    Moreno, Marisela

    1994-01-01

    shortages from underrepresented populations. Identifying and targeting selected natural resource interest factors (e.g., outdoor experiences and role models) among minority and majority populations may guide future recruitment strategies. A mail survey...

  4. Multi-Factor Model of Correlated Commodity - Forward Curves for Crude Oil and Shipping Markets

    E-Print Network [OSTI]

    Ellefsen, Per Einar

    2009-01-01

    An arbitrage free multi-factor model is developed of the correlated forward curves of the crude oil, gasoline, heating oil and tanker shipping markets. Futures contracts trading on public exchanges are used as the primary ...

  5. Human Factors and Ergonomics in Manufacturing, Vol. 19 (6) 601621 (2009) C 2009 Wiley Periodicals, Inc.

    E-Print Network [OSTI]

    Kaber, David B.

    2009-01-01

    Human Factors and Ergonomics in Manufacturing, Vol. 19 (6) 601­621 (2009) C 2009 Wiley Periodicals. Correspondence to: David Kaber, The Ergonomics Laboratory, Edward P. Fitts Department of Industrial & Systems

  6. Symptom Dimensions in OCD: Item-Level Factor Analysis and Heritability Estimates

    E-Print Network [OSTI]

    Katerberg, Hilga

    To reduce the phenotypic heterogeneity of obsessive-compulsive disorder (OCD) for genetic, clinical and translational studies, numerous factor analyses of the Yale-Brown Obsessive Compulsive Scale checklist (YBOCS-CL) have ...

  7. The Role of Docosahexaenoic Acid in Regulation of Epidermal Growth Factor Receptor Activation and Function 

    E-Print Network [OSTI]

    Turk, Harmony 1985-

    2012-08-30

    The epidermal growth factor receptor (EGFR) is a transmembrane receptor tyrosine kinase integral in regulating cell growth, survival, and migration. EGFR signaling, which is dependent on localization of the receptor within ...

  8. The Role of Specificity Protein Transcription Factors And Noncoding Rnas In Colorectal And Hepatocellular Carcinomas 

    E-Print Network [OSTI]

    Gandhy, Shruti

    2013-05-01

    Specificity protein transcription factors, Spl, Sp3 and Sp4 are overexpressed in multiple cancer cell lines and tumor types and Sp-regulated genes play an important role in cancer cell proliferation, survival, angiogenesis ...

  9. Role of fibroblast growth factor signalling on the regulation of embryonic stem cells 

    E-Print Network [OSTI]

    Freile Vinuela, Paz

    2008-01-01

    Fibroblast growth factor (FGF) signalling plays many fundamentally important roles during the development of the mammalian embryo. However, its effects on pluripotent stem cells derived from mouse and human embryos appear ...

  10. Characterization and informed design of downregulating anti-epidermal growth factor receptor antibodies

    E-Print Network [OSTI]

    Spangler, Jamie Berta

    2011-01-01

    Due to its common dysregulation in epithelial-based cancers and the extensive characterization of its role in tumor growth, epidermal growth factor receptor (EGFR) has long been an attractive target for monoclonal antibodies. ...

  11. Is Cholesterol Sulfate Deficiency a Common Factor in Preeclampsia, Autism, and Pernicious Anemia?

    E-Print Network [OSTI]

    Seneff, Stephanie

    In a recent paper, we proposed that a contributing factor in autism is a deficiency in cholesterol sulfate supply. In this paper, we investigate a link between preeclampsia and subsequent autism in the child, and we ...

  12. Binding of transcription factors adapts to resolve information-energy trade-off

    E-Print Network [OSTI]

    Kagan, Yonatan Savir Jacob

    2015-01-01

    We examine the binding of transcription factors to DNA in terms of an information transfer problem. The input of the noisy channel is the biophysical signal of a factor bound to a DNA site, and the output is a distribution of probable DNA sequences at this site. This task involves an inherent tradeoff between the information gain and the energetics of the binding interaction - high binding energies provide higher information gain but hinder the dynamics of the system as factors are bound too tightly. We show that adaptation of the binding interaction towards increasing information transfer under energy constraints implies that the information gain per specific binding energy at each base-pair is maximized. We analyze hundreds of prokaryote and eukaryote transcription factors from various organisms to evaluate the discrimination energies. We find that, in accordance with our theoretical argument, binding energies nearly maximize the information gain per energy. This work suggests the adaptation of information ...

  13. FapR, a Bacterial Transcription Factor Involved in Global Regulation of Membrane Lipid Biosynthesis

    E-Print Network [OSTI]

    Schujman, Gustavo E

    Bacterial cells exert exquisite control over the biosynthesis of their membrane lipids, but the mechanisms are obscure. We describe the identification and purification from Bacillus subtilis of a transcription factor, FapR, ...

  14. Violation of kT factorization in quark production from the Color Glass Condensate

    E-Print Network [OSTI]

    H. Fujii; F. Gelis; R. Venugopalan

    2005-10-05

    We examine the violation of the kT factorization approximation for quark production in high energy proton-nucleus collisions. We comment on its implications for the open charm and quarkonium production in collider experiments.

  15. The determination of compressibility factors of gaseous butane-nitrogen mixtures in the gas phase 

    E-Print Network [OSTI]

    Evans, Robert Buckner

    1955-01-01

    butane in summer resulting from lowered gasoline volatility and various increasing supply factors will create fuel purchasing opportunities. It was found that in-place propane switching capability among manufacturers could be adapted to absorb all...

  16. Local pharmacokinetics and pharmacodynamics of angiogenic growth factors in myocardial tissue

    E-Print Network [OSTI]

    Le, Kha N., 1973-

    2009-01-01

    Early enthusiasm over angiogenic therapy, a method to induce vascular regeneration to treat ischemic tissue with growth factors, has been tempered by a series of unsuccessful clinical trials with limited late efficacy and ...

  17. Epidemiological Investigation of Risk Factors for Microbial Contamination in Produce at the Preharvest Level 

    E-Print Network [OSTI]

    Park, Sangshin

    2013-11-15

    monocytogenes, Salmonella, and Escherichia coli O157:H7. The overall objective of this dissertation was to study the risk factors for preharvest produce contamination with these three pathogens and generic Escherichia coli, as an indicator organism of fecal...

  18. New Precision Limit on the Strange Vector Form Factors of the Proton

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

    Ahmed, Z.; Allada, K.; Aniol, K. A.; Armstrong, D. S.; Arrington, J.; Baturin, P.; Bellini, V.; Benesch, J.; Beminiwattha, R.; Benmokhtar, F.; et al

    2012-03-01

    The parity-violating cross-section asymmetry in the elastic scattering of polarized electrons from unpolarized protons has been measured at a four-momentum transfer squared Q2 = 0.624 GeV2 and beam energy Eb = 3.48 GeV to be APV = -23.80 ± 0.78 (stat) ± 0.36 (syst) parts per million. This result is consistent with zero contribution of strange quarks to the combination of electric and magnetic form factors GEs + 0.517 GMs = 0.003 ± 0.010 (stat) ± 0.004 (syst) ± 0.009 (ff), where the third error is due to the limits of precision on the electromagnetic form factors and radiative corrections.more »With this measurement, the world data on strange contributions to nucleon form factors are seen to be consistent with zero and not more than a few percent of the proton form factors.« less

  19. New AC-DC Power Factor Correction Architecture Suitable for High Frequency Operation

    E-Print Network [OSTI]

    Lim, Seungbum

    This paper presents a novel ac-dc power factor correction (PFC) power conversion architecture for single-phase grid interface. The proposed architecture has significant advantages for achieving high efficiency, good power ...

  20. Evolution of transcription factors and the gene regulatory network in Escherichia coli

    E-Print Network [OSTI]

    Babu, M. Madan

    Evolution of transcription factors and the gene regulatory network in Escherichia coli M. Madan Escherichia coli. In order to gain insight into the evolution of the E.coli regula- tory network, we analysed

  1. High Resolution Genome Wide Binding Event Finding and Motif Discovery Reveals Transcription Factor Spatial Binding Constraints

    E-Print Network [OSTI]

    Guo, Yuchun

    An essential component of genome function is the syntax of genomic regulatory elements that determine how diverse transcription factors interact to orchestrate a program of regulatory control. A precise characterization ...

  2. The role of the duty factor in ultrasound-mediated cardiac stimulation

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    @illinois.edu, wdo@illinois.edu Abstract: The role of the duty factor (DF) in ultrasound-mediated car- diac- controlled platform in dorsal recumbency for ultrasonic cardiac exposure. Respiratory rate, heart rate

  3. Characterizing the function of transcription factor 15 (Tcf15) in pluripotent cells 

    E-Print Network [OSTI]

    Lin, Chia-Yi

    2015-06-29

    Pluripotent embryonic stem (ES) cells are heterogeneous mixtures of naïve and lineage-primed states defined by distinct transcription factor expression profiles. However, the events that prime pluripotent cells ...

  4. Effects of a High Oleic Acid Beef Diet on Cardiovascular Disease Risk Factors of Human Subjects 

    E-Print Network [OSTI]

    Adams, Thaddeus Hunter

    2012-10-19

    The consumption of high-fat hamburger enriched with saturated fatty acids (SFA) and trans-fatty acids (TFA) may increase risk factors for cardiovascular disease, whereas hamburger enriched with monounsaturated fatty acids ...

  5. Regulation of mTOR complex 1 in response to growth factors and nutrients

    E-Print Network [OSTI]

    Sancak, Yasemin S. (Yasemin Shechner)

    2010-01-01

    In multicellular organisms, cells ensure the simultaneous availability of growth factors and nutrients before they invest in cellular processes that lead to growth. The TOR kinase is a master regulator of cellular growth ...

  6. Regulation of the mTOR Complex 1 Pathway by Nutrients, Growth Factors, and Stress

    E-Print Network [OSTI]

    Sengupta, Shomit

    The large serine/threonine protein kinase mTOR regulates cellular and organismal homeostasis by coordinating anabolic and catabolic processes with nutrient, energy, and oxygen availability and growth factor signaling. Cells ...

  7. Analysis of variation at transcription factor binding sites in Drosophila and humans

    E-Print Network [OSTI]

    Spivakov, Mikhail

    Background: Advances in sequencing technology have boosted population genomics and made it possible to map the positions of transcription factor binding sites (TFBSs) with high precision. Here we investigate TFBS variability ...

  8. System theoretic approach for determining causal factors of quality loss in complex system design

    E-Print Network [OSTI]

    Goerges, Stephanie L

    2013-01-01

    Identifying the factors that could lead to the loss of quality is difficult for large, complex systems. Traditional design methods such as Failure Modes and Effects Analysis (FMEA), Fault Tree Analysis (FTA), and Robust ...

  9. System Theoretic Approach for Determining Causal Factors of Quality Loss in Complex System Design

    E-Print Network [OSTI]

    . Traditional design methods such as Failure Modes and Effects Analysis (FMEA), Fault Tree Analysis (FTA to identify more causal factors for quality losses than FMEA or FTA, including component interactions

  10. Assessing Student Knowledge and Perceptions of Factors Influencing Participation in Supervised Agricultural Experience Programs 

    E-Print Network [OSTI]

    Lewis, Lauren Joanna

    2012-07-16

    /suburban areas. Students in Florida, Indiana, Missouri, and Utah completed a researcher-designed questionnaire assessing knowledge and perceptions on factors influencing SAE participation. A response rate of 43.3% (N = 120, n = 52) was achieved...

  11. Depressive and anxiety disorders in primary care: factors affecting physicians' use of screening information 

    E-Print Network [OSTI]

    Maner, Ashley Meredith

    1999-01-01

    to logistic and multiple regression analyses, most notably severity of the psychiatric disorder and number of somatic complaints. The impact of demographic, psychiatric, and physical health factors varied greatly depending on the specific management activity...

  12. Dynamic Simulation and Analysis of Factors Impacting the Energy Consumption of Residential Buildings 

    E-Print Network [OSTI]

    Lian, Y.; Hao, Y.

    2006-01-01

    Buildings have a close relationship with climate. There are a lot of important factors that influence building energy consumption such as building shape coefficient, insulation work of building envelope, covered area, and the area ratio of window...

  13. Dynamic shape factors for hydox-generated plutonium dioxide-type non-sperical objects 

    E-Print Network [OSTI]

    Lohaus, James Harold

    1999-01-01

    The dynamic shape factors of HYDOX-generated plutonium dioxide-type non-spherical objects were estimated with computational methods. Leith's empirical methods were used to modify classical Stokes's law for aerosol dynamics (1987). The dynamic shape...

  14. Exploring Spatial Variations in the Relationship between National Park Visitation and Associated Factors in Texas Counties 

    E-Print Network [OSTI]

    Lee, Kyung Hee

    2013-11-07

    Recreation demand such as national park visitation is influenced by various social, demographic, and economic factors. These key variables are important indicators in predicting future trends and provide beneficial information about potential park...

  15. Environmental factors influencing benthic macrofaunal invertebrate community structure in the Flower Gardens East Bank 

    E-Print Network [OSTI]

    Kuslich, James

    2013-09-25

    , the shallower portions of both banks provide ideal substrates for scleractinian coral growth, resulting in the formation of the two northernmost coral reefs in the continental U.S (Bright et al., 1984; Teague et al., 2013). Factors affecting macroinfaunal...

  16. On Nonnegative Matrix Factorization Algorithms for Signal-Dependent Noise with Application to Electromyography Data

    E-Print Network [OSTI]

    Devarajan, Karthik

    Nonnegative matrix factorization (NMF) by the multiplicative updates algorithm is a powerful machine learning method for decomposing a high-dimensional nonnegative matrix V into two nonnegative matrices, W and H, where V ...

  17. Modular design of coiled coils to target bZIP transcription factors

    E-Print Network [OSTI]

    Kaplan, Jenifer (Jenifer Brooke)

    2014-01-01

    Basic leucine-zipper (bZIP) transcription factors regulate many important cellular processes including tissue differentiation, stress responses and the unfolded protein response, the cell cycle, and apoptosis. Understanding ...

  18. Form factors for $\\mathrm B_\\mathrm s \\to \\mathrm K \\ell ?$ decays in Lattice QCD

    E-Print Network [OSTI]

    Felix Bahr; Fabio Bernardoni; John Bulava; Anosh Joseph; Alberto Ramos; Hubert Simma; Rainer Sommer

    2014-11-14

    We present the current status of the computation of the form factor $f_+ (q^2)$ for the semi-leptonic decay $\\mathrm B_\\mathrm s \\to \\mathrm K \\ell \

  19. Cognitive, demographic, and motivational factors as indicators of help-seeking in supplemental instruction 

    E-Print Network [OSTI]

    McGee, Joel Vick

    2005-08-29

    The purpose of this study was to determine how cognitive, demographic, and motivational factors can be used to understand help-seeking behavior in college students. Specifically, the study examined engagement in Supplemental Instruction (SI...

  20. Factors Affecting the Fragmentation of Peptide Ions: Metal Cationization and Fragmentation Timescale 

    E-Print Network [OSTI]

    Kmiec, Kevin

    2012-10-19

    The factors affecting peptide fragmentation have been extensively studied in the literature in order to better predict the fragment ion spectra of peptides and proteins. While there are countless influences to consider, metal cation binding...

  1. What are the business and regulatory factors for a successful Philippine REIT market?

    E-Print Network [OSTI]

    Wenceslao, Delfin C

    2008-01-01

    In an attempt to determine what business and regulatory factors are required for the successful establishment of a Real Estate Investment Trust (REIT) structure in the Philippines, we analyzed the macro and microeconomic ...

  2. Evaluation of the Extinction Factor in a Laminar Flame Established over a PMMA Plate in Microgravity 

    E-Print Network [OSTI]

    Fuentes, Andres; Legros, Guillaume; Joulain, Pierre; Vantelon, Jean-Pierre; Torero, Jose L

    2005-01-01

    A methodology for estimating the extinction factor at wavelength of 530 nm in diffusion flames is presented. All experiments have been in microgravity and have as their objective the production of quantitative data that ...

  3. Multiple factoring in the parallel solution of algebraic equations. Final report

    SciTech Connect (OSTI)

    Van Ness, J.E.

    1985-03-01

    Many power system simulations call for solving large sets of simultaneous algebraic equations. A new multiple factoring algorithm for use in parallel processing requires fewer calculations than past algorithms, thereby reducing computation time and costs for utility multiprocessor networks.

  4. Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis- 2010

    Broader source: Energy.gov [DOE]

    Report describes the 2010 edition of energy price indices and discount factors for performing life-cycle cost analyses of energy and water conservation and renewable energy projects in federal facilities.

  5. Low levels of cardiovascular risk factors and coronary heart disease in a UK Chinese population. 

    E-Print Network [OSTI]

    Harland, J O; Unwin, Nigel; Bhopal, Raj; White, M; Watson, B; Laker, M; Alberti, K G

    1997-01-01

    OBJECTIVE: To compare the prevalence of cardiovascular risk factors and coronary heart disease in Chinese and Europid adults. DESIGN: Population based, cross sectional survey. SETTING: Newcastle upon Tyne, UK, 1991-93. ...

  6. Differing risk factor profiles of ischemic stroke subtypes: evidence for a distinct lacunar arteriopathy? 

    E-Print Network [OSTI]

    Jackson, Caroline Anne; Hutchinson, A; Dennis, MS; Wardlaw, Joanna M; Lindgren, A; Norrving, B; Anderson, CS; Hankey, GJ; Jamrozik, K; Appelros, P; Sudlow, Cathie

    Background and Purpose Differences in risk factor profiles between lacunar and other ischemic stroke subtypes may provide evidence for a distinct lacunar arteriopathy, but existing studies have limitations. We overcame ...

  7. Pharmacological Chaperone Design for Reducing Risk Factor of Parkinson’s Disease from Traditional Chinese Medicine

    E-Print Network [OSTI]

    Huang, Hung-Jin

    Dysfunction of ?-glucocerebrosidase (GCase) has no hydrolytic activity in patients of Gaucher's disease and increasing the risk factor for Parkinson’s disease occurrence. Pharmacological chaperone design has been used to ...

  8. Progress on charm semileptonic form factors from 2+1 flavor lattice QCD

    E-Print Network [OSTI]

    Jon A. Bailey; A. Bazavov; C. Bernard; C. Bouchard; C. DeTar; A. X. El-Khadra; E. D. Freeland; W. Freeman; E. Gamiz; Steven Gottlieb; U. M. Heller; J. E. Hetrick; A. S. Kronfeld; J. Laiho; L. Levkova; P. B. Mackenzie; M. B. Oktay; M. Di Pierro; J. N. Simone; R. Sugar; D. Toussaint; R. S. Van de Water

    2009-12-01

    Lattice calculations of the form factors for the charm semileptonic decays D to K l nu and D to pi l nu provide inputs to direct determinations of the CKM matrix elements |V(cs)| and |V(cd)| and can be designed to validate calculations of the form factors for the bottom semileptonic decays B to pi l nu and B to K l l-bar. We are using Fermilab charm (bottom) quarks and asqtad staggered light quarks on the 2+1 flavor asqtad MILC ensembles to calculate the charm (bottom) form factors. We outline improvements to the previous calculation of the charm form factors and detail our progress. We expect our current round of data production to allow us to reduce the theoretical uncertainties in |V(cs)| and |V(cd)| from 10.5% and 11%, respectively, to about 7%.

  9. Factors affecting the permanence of livestock projects undertaken by Heifer International-Mexico 

    E-Print Network [OSTI]

    Arispe, Sergio Adrian

    2003-01-01

    in the state of Durango, Mexico. This study identified and analyzed the factors affecting the permanence of hog and dairy cow projects in four communities in the state of Durango, Mexico. The researcher interviewed seven project managers and 35 beneficiaries...

  10. Self-assembling peptide amphiphiles and related methods for growth factor delivery

    DOE Patents [OSTI]

    Stupp, Samuel I; Donners, Jack J.J.M.; Silva, Gabriel A; Behanna, Heather A; Anthony, Shawn G

    2013-11-12

    Amphiphilic peptide compounds comprising one or more epitope sequences for binding interaction with one or more corresponding growth factors, micellar assemblies of such compounds and related methods of use.

  11. Cavity loss factors of non-relativistic beams for Project X

    SciTech Connect (OSTI)

    Lunin, A.; Yakovlev, V.; Kazakov, S.; /Fermilab

    2011-03-01

    Cavity loss factor calculation is an important part of the total cryolosses estimation for the super conductive (SC) accelerating structures. There are two approaches how to calculate cavity loss factors, the integration of a wake potential over the bunch profile and the addition of loss factors for individual cavity modes. We applied both methods in order to get reliable results for non-relativistic beam. The time domain CST solver was used for a wake potential calculation and the frequency domain HFSS code was used for the cavity eigenmodes spectrum findings. Finally we present the results of cavity loss factors simulations for a non-relativistic part of the ProjectX and analyze it for various beam parameters.

  12. Experimental and computational analysis of epidermal growth factor receptor pathway phosphorylation dynamics

    E-Print Network [OSTI]

    Kleiman, Laura B

    2010-01-01

    The epidermal growth factor receptor (EGFR, also known as ErbB 1) is a prototypical receptor tyrosine kinase (RTK) that activates multi-kinase phosphorylation cascades to regulate diverse cellular processes, including ...

  13. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    NISTIR 85-3273-30 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2015 Annual Supplement to NIST Handbook 135 Priya D. Lavappa Joshua D. Kneifel This...

  14. Dispersive representation and shape of the K{sub l3} form factors: Robustness

    SciTech Connect (OSTI)

    Bernard, Veronique; Stern, Jan; Passemar, Emilie

    2009-08-01

    An accurate low-energy dispersive parametrization of the scalar K{pi} form factor was constructed some time ago in terms of a single parameter guided by the Callan-Treiman low-energy theorem. A similar twice-subtracted dispersive parametrization for the vector K{pi} form factor will be investigated here. The robustness of the parametrization of these two form factors will be studied in great detail. In particular the cutoff dependence, the isospin breaking effects, and the possible, though not highly probable, presence of zeros in the form factors will be discussed. Interesting constraints in the latter case will be obtained from the soft-kaon analog of the Callan-Treiman theorem and a comparison with the recent {tau}{yields}K{pi}{nu}{sub {tau}} data.

  15. Factors controlling permeability of cataclastic deformation bands and faults in porous sandstone reservoirs

    E-Print Network [OSTI]

    Fossen, Haakon

    Factors controlling permeability of cataclastic deformation bands and faults in porous sandstone March 2015 Available online 18 April 2015 Keywords: Cataclastic band Permeability Porous sandstone Fluid and their petrophysical properties is essential for realistic characterization of deformed sandstone reservoirs

  16. The relationship of social desirability responding and the Big Five: an investigation using confirmatory factor analysis 

    E-Print Network [OSTI]

    Carlisle, Todd Dana

    2000-01-01

    The relationship between social desirability responding (SDR) and the Big Five factors of personality was both summarized with a review of past and current studies and directly investigated using a series of confirmatory ...

  17. Factors Affecting the Mechanical Behavior of Bone Subrata Saha, Ph.D.

    E-Print Network [OSTI]

    Gilbert, Robert P.

    Factors Affecting the Mechanical Behavior of Bone by Subrata Saha, Ph.D. Research Professor-mail: subrata.saha@downstate.edu ABSTRACT The load carrying capacity of our skeletal system depends

  18. Above-Threshold Poles in Model-Independent Form Factor Parametrizations

    E-Print Network [OSTI]

    Grinstein, B; Lebed, RF

    2015-01-01

    exact position z p of the pole is then given by Eqs. (26)– (for discussions on the relation of poles and resonances. 56,Above-Threshold Poles in Model-Independent Form Factor

  19. Understanding the friction factor behavior in liquid annular seals with deliberately roughened surfaces, a CFD approach 

    E-Print Network [OSTI]

    Villasmil Urdaneta, Larry Alfonso

    2002-01-01

    Bulk flow theory has been widely used to estimate annular seals dynamic coefficients. To predict the flow behavior through the seal, this theory relies on empirical friction factor correlations based on pipe data. Several ...

  20. GHG emission factors developed for the recycling and composting of municipal waste in South African municipalities

    SciTech Connect (OSTI)

    Friedrich, Elena Trois, Cristina

    2013-11-15

    Highlights: • GHG emission factors for local recycling of municipal waste are presented. • GHG emission factors for two composting technologies for garden waste are included. • Local GHG emission factors were compared to international ones and discussed. • Uncertainties and limitations are presented and areas for new research highlighted. - Abstract: GHG (greenhouse gas) emission factors for waste management are increasingly used, but such factors are very scarce for developing countries. This paper shows how such factors have been developed for the recycling of glass, metals (Al and Fe), plastics and paper from municipal solid waste, as well as for the composting of garden refuse in South Africa. The emission factors developed for the different recyclables in the country show savings varying from ?290 kg CO{sub 2} e (glass) to ?19 111 kg CO{sub 2} e (metals – Al) per tonne of recyclable. They also show that there is variability, with energy intensive materials like metals having higher GHG savings in South Africa as compared to other countries. This underlines the interrelation of the waste management system of a country/region with other systems, in particular with energy generation, which in South Africa, is heavily reliant on coal. This study also shows that composting of garden waste is a net GHG emitter, releasing 172 and 186 kg CO{sub 2} e per tonne of wet garden waste for aerated dome composting and turned windrow composting, respectively. The paper concludes that these emission factors are facilitating GHG emissions modelling for waste management in South Africa and enabling local municipalities to identify best practice in this regard.

  1. Cross-Cultural Validation of the Marital Satisfaction Inventory-Revised: A confirmatory factor analytic study 

    E-Print Network [OSTI]

    Gasbarrini, Molly Faithe

    2011-10-21

    -CULTURAL VALIDATION OF THE MARITAL SATISFACTION INVENTORY-REVISED: A CONFIRMATORY FACTOR ANALYTIC STUDY A Thesis by MOLLY FAITHE GASBARRINI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 2010 Major Subject: Psychology Cross-Cultural Validation of the Marital Satisfaction Inventory-Revised: A Confirmatory Factor Analytic Study Copyright 2010 Molly...

  2. Two-loop enhancement factor for 1/Q corrections to event shapes in deep inelastic scattering

    E-Print Network [OSTI]

    Mrinal Dasgupta; Bryan R. Webber

    2000-10-22

    We compute the two-loop enhancement factors for our earlier one-loop calculations of leading (1/Q) power corrections to the mean values of some event shape variables in deep inelastic lepton scattering. The enhancement is found to be equal to the universal ``Milan factor'' for those shape variables considered, provided the one-loop calculation is performed in a particular way. As a result, the phenomenology of power corrections to DIS event shapes remains largely unaffected.

  3. Masses, decay constants and electromagnetic form-factors with twisted boundary conditions

    E-Print Network [OSTI]

    Bijnens, Johan

    2015-01-01

    We discuss some of the effects of twisted boundary conditions in finite volume using continuum SU(3) Chiral Perturbation Theory. We point out how broken cubic symmetry affects the definitions of quantities such as form-factors. Using the $\\pi^+$ as an example, we give one loop results for the mass, decay constants and electromagnetic form-factor and illustrate how the relevant Ward identities are satisfied.

  4. Masses, decay constants and electromagnetic form-factors with twisted boundary conditions

    E-Print Network [OSTI]

    Johan Bijnens; Johan Relefors

    2015-09-24

    We discuss some of the effects of twisted boundary conditions in finite volume using continuum SU(3) Chiral Perturbation Theory. We point out how broken cubic symmetry affects the definitions of quantities such as form-factors. Using the $\\pi^+$ as an example, we give one loop results for the mass, decay constants and electromagnetic form-factor and illustrate how the relevant Ward identities are satisfied.

  5. Identification and Characterization of Soluble Factors Involved in Delayed Effects of Low Dose Radiation. Final report

    SciTech Connect (OSTI)

    Baulch, Janet

    2013-09-11

    This is a 'glue grant' that was part of a DOE Low Dose project entitled 'Identification and Characterization of Soluble Factors Involved in Delayed Effects of Low Dose Radiation'. This collaborative program has involved Drs. David L. Springer from Pacific Northwest National Laboratory (PNNL), John H. Miller from Washington State University, Tri-cities (WSU) and William F. Morgan then from the University of Maryland, Baltimore (UMB). In July 2008, Dr. Morgan moved to PNNL and Dr. Janet E. Baulch became PI for this project at University of Maryland. In November of 2008, a one year extension with no new funds was requested to complete the proteomic analyses. The project stemmed from studies in the Morgan laboratory demonstrating that genomically unstable cells secret a soluble factor or factors into the culture medium, that cause cytogenetic aberrations and apoptosis in normal parental GM10115 cells. The purpose of this project was to identify the death inducing effect (DIE) factor or factors, estimate their relative abundance, identify the cell signaling pathways involved and finally recapitulate DIE in normal cells by exogenous manipulation of putative DIE factors in culture medium. As reported in detail in the previous progress report, analysis of culture medium from the parental cell line, and stable and unstable clones demonstrated inconsistent proteomic profiles as relate to candidate DIE factors. While the proposed proteomic analyses did not provide information that would allow DIE factors to be identified, the analyses provided another important set of observations. Proteomic analysis suggested that proteins associated with the cellular response to oxidative stress and mitochondrial function were elevated in the medium from unstable clones in a manner consistent with mitochondrial dysfunction. These findings correlate with previous studies of these clones that demonstrated functional differences between the mitochondria of stable and unstable clones. These mitochondrial abnormalities in the unstable clones contributes to oxidative stress.

  6. Human Reliability Analysis for Design: Using Reliability Methods for Human Factors Issues

    SciTech Connect (OSTI)

    Ronald Laurids Boring

    2010-11-01

    This paper reviews the application of human reliability analysis methods to human factors design issues. An application framework is sketched in which aspects of modeling typically found in human reliability analysis are used in a complementary fashion to the existing human factors phases of design and testing. The paper provides best achievable practices for design, testing, and modeling. Such best achievable practices may be used to evaluate and human system interface in the context of design safety certifications.

  7. Possible Upper limits on Lorentz Factors in High Energy Astrophysical Processes

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun

    2010-08-31

    Gamma ray bursts (GRBs) are the most luminous physical phenomena in the universe. The relativistic effect on the blast wave associated with the GRB introduces the gamma factor. Here we put an upper limit on the gamma factor via constraints on maximal power allowed by general relativity and hence set upper limits on other observable quantities such as deceleration distance. Also upper limits are set on the high energy particle radiation due to constraints set by cosmic microwave background radiation.

  8. SICANE: a Detector Array for the Measurement of Nuclear Recoil Quenching Factors using Monoenergetic Neutron Beam

    E-Print Network [OSTI]

    E. Simon; L. Berge; A. Broniatowski; R. Bouvier; B. Chambon; M. De Jesus; D. Drain; L. Dumoulin; J. Gascon; J. P. Hadjout; A. Juillard; O. Martineau; C. Pastor; M. Stern; L. Vagneron

    2002-12-20

    SICANE is a neutron scattering multidetector facility for the determination of the quenching factor (ratio of the response to nuclear recoils and to electrons) of cryogenic detectors used in direct WIMP searches. Well collimated monoenergetic neutron beams are obtained with inverse (p,n) reactions. The facility is described, and results obtained for the quenching factors of scintillation in NaI(Tl) and of heat and ionization in Ge are presented.

  9. Meteorological Factors Regulating the Population Expansion and Contraction of Amblyomma maculatum (Acari: Ixodidae) in Texas 

    E-Print Network [OSTI]

    Coburn, Jordan McQuade

    2010-10-12

    FACTORS REGULATING THE POPULATION EXPANSION AND CONTRACTION OF AMBLYOMMA MACULATUM (ACARI: IXODIDAE) IN TEXAS A Thesis by JORDAN MCQUADE COBURN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 2009 Major Subject: Entomology METEOROLOGICAL FACTORS REGULATING THE POPULATION EXPANSION AND CONTRACTION OF AMBLYOMMA MACULATUM (ACARI: IXODIDAE) IN TEXAS A Thesis by JORDAN...

  10. Hydrogeologic and topographic factors influencing well yields in fractured crystalline rocks - Seoul, Republic of Korea 

    E-Print Network [OSTI]

    Kim, Sang-Il

    1990-01-01

    , Popolation, and Climate General Geology Hydrogeology Objective . PREVIOUS HYDROGEOLOGIC STUDIES PROCEDURE OF INVESTIGATION Productivity and Well Inventory Method Graphical Analysis Statistical Analysis RESI. 'LTS . . 13 14 . . . 16 . . . 24... Hydrogeologic Factors Summary of I&ruskal ? Wallis One ? Way Analysis of Variance for Various Hydrogeologic Factors Page 17 19 LIST OF FIGURES FIGURE Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Estimated Water Deficit of Han River Basin...

  11. Simulation of a Wireless Power Transfer System for Electric Vehicles with Power Factor Correction

    SciTech Connect (OSTI)

    Pickelsimer, Michael C [ORNL; Tolbert, Leon M [ORNL; Ozpineci, Burak [ORNL; Miller, John M [ORNL

    2012-01-01

    Wireless power transfer has been a popular topic of recent research. Most research has been done to address the limitations of coil-to-coil efficiency. However, little has been done to address the problem associated with the low input power factor with which the systems operate. This paper details the steps taken to analyze a wireless power transfer system from the view of the power grid under a variety of loading conditions with and without power factor correction.

  12. Cutting through form factors and cross sections of non-protected operators in N=4 SYM

    E-Print Network [OSTI]

    Dhritiman Nandan; Christoph Sieg; Matthias Wilhelm; Gang Yang

    2015-03-30

    We study the form factors of the Konishi operator, the prime example of non-protected operators in N=4 SYM theory, via the on-shell unitarity methods. Since the Konishi operator is not protected by supersymmetry, its form factors share many features with those in QCD, such as the occurrence of rational terms and of UV divergences that require renormalization. A subtle point is that this operator depends on the spacetime dimension. This requires a modification when calculating its form factors via unitarity methods. We derive a rigorous prescription that implements this modification to all loop orders and obtain the two-point form factor up to two-loop order and the three-point form factor to one-loop order. From these form factors, we construct an IR-finite cross section type quantity, namely the inclusive decay rate of the (off-shell) Konishi operator to any final (on-shell) state. Via the optical theorem, it is connected to the imaginary part of the two-point correlation function. We extract the Konishi anomalous dimension up to two-loop order from it.

  13. $B\\to Kl^+l^-$ decay form factors from three-flavor lattice QCD

    E-Print Network [OSTI]

    Jon A. Bailey; A. Bazavov; C. Bernard; C. M. Bouchard; C. DeTar; Daping Du; A. X. El-Khadra; J. Foley; E. D. Freeland; E. Gámiz; Steven Gottlieb; U. M. Heller; R. D. Jain; J. Komijani; A. S. Kronfeld; J. Laiho; L. Levkova; Yuzhi Liu; P. B. Mackenzie; Y. Meurice; E. T. Neil; Si-Wei Qiu; J. N. Simone; R. Sugar; D. Toussaint; R. S. Van de Water; Ran Zhou

    2015-09-21

    We compute the form factors for the $B \\to Kl^+l^-$ semileptonic decay process in lattice QCD using gauge-field ensembles with 2+1 flavors of sea quark, generated by the MILC Collaboration. The ensembles span lattice spacings from 0.12 to 0.045 fm and have multiple sea-quark masses to help control the chiral extrapolation. The asqtad improved staggered action is used for the light valence and sea quarks, and the clover action with the Fermilab interpretation is used for the heavy $b$ quark. We present results for the form factors $f_+(q^2)$, $f_0(q^2)$, and $f_T(q^2)$, where $q^2$ is the momentum transfer, together with a comprehensive examination of systematic errors. Lattice QCD determines the form factors for a limited range of $q^2$, and we use the model-independent $z$ expansion to cover the whole kinematically allowed range. We present our final form-factor results as coefficients of the $z$ expansion and the correlations between them, where the errors on the coefficients include statistical and all systematic uncertainties. We use this complete description of the form factors to test QCD predictions of the form factors at high and low $q^2$. We also compare a Standard-Model calculation of the branching ratio for $B \\to Kl^+l^-$ with experimental data.

  14. Constraints on the Bulk Lorentz Factors of GRB X-Ray Flares

    E-Print Network [OSTI]

    Yi, Shuang-Xi; Wang, Fa-Yin; Dai, Zi-Gao

    2015-01-01

    X-ray flares were discovered in the afterglow phase of gamma-ray bursts (GRBs) by the {\\em Swift} satellite a decade ago and known as a canonical component in GRB X-ray afterglows. In this paper, we constrain the Lorentz factors of GRB X-ray flares using two different methods. For the first method, we estimate the lower limit on the bulk Lorentz factor with the flare duration and jet break time. In the second method, the upper limit on the Lorentz factor is derived by assuming that the X-ray flare jet has undergone saturated acceleration. We also re-estimate the initial Lorentz factor with GRB afterglow onsets, and find the coefficient of the theoretical Lorentz factor is 1.67 rather than the commonly used 2 for interstellar medium (ISM) and 1.44 for the wind case. We find that the correlation between the limited Lorentz factor and the isotropic radiation energy of X-ray flares in the ISM case is more consistent with that of prompt emission than the wind case in a statistical sense. For a comparison, the lowe...

  15. 254 PROCEEDINGS of the HUMAN FACTORS AND ERGONOMICS SOCIETY 42nd ANNUAL MEETING-1998 CONTENDING WITH COMPLEXITY: THE DEVELOPMENT AND

    E-Print Network [OSTI]

    Gray, Wayne

    254 PROCEEDINGS of the HUMAN FACTORS AND ERGONOMICS SOCIETY 42nd ANNUAL MEETING-1998 CONTENDING methodological and practical constraints. #12;PROCEEDINGS of the HUMAN FACTORS AND ERGONOMICS SOCIETY 42nd ANNUAL

  16. Editorial: Cell and molecular signaling, and transport pathways involved in growth factor control of synaptic development and function

    E-Print Network [OSTI]

    Yoshii, Akira

    Since the discovery of nerve growth factor (NGF) more than a half century ago (Levi-Montalcini and Cohen, 1960), the prototypic neurotrophin family has included brain derived neurotrophic factor (BDNF), neurotrophin-3 ...

  17. THE INTEGRATION OF TECHNOLOGY INTO SCHOOL CURRICULUM IN SAUDI ARABIA: FACTORS AFFECTING TECHNOLOGY IMPLEMENTATION IN THE CLASSROOM

    E-Print Network [OSTI]

    Barri, Moatasim Asaad

    2013-05-31

    There are a number of factors that influence technology implementation in the classroom including teachers' concerns; barriers; and intrinsic incentives. These factors give classroom teachers a chance to make a shift in ...

  18. Regulation of vascular endothelial growth factor receptor-2 in pancreatic and breast cancer cells by Sp proteins 

    E-Print Network [OSTI]

    Higgins, Kelly Jean

    2007-09-17

    Vascular endothelial growth factor receptor-2 (VEGFR2) is a key angiogenic factor, and angiogenesis is an important physiological process associated with neovascularization, growth, and metastasis of many different tumors. ...

  19. Role of vascular endothelial growth factor (VEGF) in granulosa cell function: involvement of heterotrimeric G-protein signalling pathways. 

    E-Print Network [OSTI]

    Doyle, Lynsey Kerr

    2009-01-01

    Vascular Endothelial Growth Factor (VEGF) has been shown to be an absolute requirement for ovarian follicle development. Although VEGF is commonly regarded primarily as an angiogenic factor, granulosa cells are a major ...

  20. The Factors Affecting the Location of Foreign Direct Investment by U.S. Companies Pre and Post 9-11 

    E-Print Network [OSTI]

    Newton, Brent Alexander; Mileski, Joan P.

    2008-08-19

    This research examines the motivational factors that influence the location of U.S. Foreign Direct Investment (FDI) in a post 9-11 world. Market factors, in the past, have been a dominant motivation in choosing a location ...