Sample records for fte full-time equivalent

  1. Employment Status -All Respondents Full-time Employment -36%

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    1 36% 4% 10% 28% 5% 5% 2% 1% 1% 8% Employment Status - All Respondents Full-time Employment - 36% Part-time Employment - 4% Continuing Current Employment - 10% Postdoctoral Fellowship - 28% Medical Residency (MD/PhDs) - 5% Full-time Graduate Studies - 5% Self-Employed - 2% Temporary Employment - 1% Other

  2. Microsoft Word - CFAC Contract 10-30-09 blackline 2.doc

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

    G. "FTE" shall mean full- time annual equivalent employment (including part-time and partial year) for regular employees of CFAC at the CFAC smelter and contractor employees...

  3. Microsoft Word - Power Sales Agreement ALCOA - 081909 pm.doc

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

    G. "FTE" shall mean full time annual equivalent employment (including part-time and partial year) for regular employees of Alcoa at the Intalco Plant and contractor employees...

  4. Microsoft Word - CFAC 7-Year PSA.doc

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

    G. "FTE" shall mean full time annual equivalent employment (including part-time and partial year) for regular employees of CFAC at the CFAC Plant and contractor employees...

  5. Microsoft Word - Alcoa Compared 08_19_09 to 10_30_09 draft 2...

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

    G. "FTE" shall mean full- time annual equivalent employment (including part-time and partial year) for regular employees of Alcoa at the Intalco Plant and contractor employees...

  6. Microsoft Word - Alcoa Contract 10-30-09 blackline 2.doc

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

    G. "FTE" shall mean full- time annual equivalent employment (including part-time and partial year) for regular employees of Alcoa at the Intalco Plant and contractor employees...

  7. UNDERGRAD FULL-TIME PART-TIME UNDERGRAD FULL-TIME PART-TIME Arts & Social Sciences 4706 1118 15 -19 3910 0

    E-Print Network [OSTI]

    -TIME UNDERGRAD FULL-TIME PART-TIME Year 1 3431 432 Tri-County area 7533 1474 Year 2 3012 406 Rest of Ontario 2929 GRADUATE FULL-TIME PART-TIME GRADUATE FULL-TIME PART-TIME Tri-County area 586 80 Spec & Cert 3 2 Rest

  8. An Analysis of Full-Time Commercial Farms in Northeast Texas.

    E-Print Network [OSTI]

    Edmondson, Vance W.

    1962-01-01T23:59:59.000Z

    '7, , . 31: + :*a An Analysis of k 1 !": A+- , C "I . Full-time Commercial 9'' &$Farms Summarv Opportunities are available to raise incomes from since the labor requirements... are distributed full-time commercial farming operations in Northeast evenly over the whole year. Second, livestock pr Texas, especially on farms where livestock enterprises tion improves soil fertility in the long run wi are predominant. Many of the dominately...

  9. Study Guide 2011 2012 Full-time Students -Mid Year Entry

    E-Print Network [OSTI]

    Tobar, Michael

    Study Guide 2011 ­ 2012 Full-time Students - Mid Year Entry Master of Oil and Gas Engineering://rules.handbooks.uwa.edu.au/rules/ecm/Part6/Division9/Table69b subject to unit prerequisites and timetabling constraints Exit Point. ..................................................................................................... #12;Study Guide 2011 - 2012 Part-time Students - Mid Year Entry Master of Oil and Gas Engineering

  10. Study Guide 2012 for Full-Time Students Master of Oil and Gas Engineering

    E-Print Network [OSTI]

    Tobar, Michael

    Study Guide 2012 for Full-Time Students Master of Oil and Gas Engineering Graduate Diploma in Oil Oil & Gas Economics PETR8503 Reservoir Engineering Possible Options (example only) PETR8510 Petroleum freedom to choose units from the available options listed in the Master of Oil and Gas Engineering Table

  11. Study Guide 2010 for Full-Time Students Master of Oil and Gas Engineering

    E-Print Network [OSTI]

    Tobar, Michael

    Study Guide 2010 for Full-Time Students Master of Oil and Gas Engineering Graduate Diploma in Oil Oil & Gas Economics PETR8503 Reservoir Engineering Possible Options (example only) CIVL4130 Offshore freedom to choose units from the available options listed in the Master of Oil and Gas Engineering Table

  12. All Regular Part-Time and Temporary Full-Time Employees

    E-Print Network [OSTI]

    contains important information and should be kept in a safe place known to you and your family. The Plan is underwritten by #12;Protecting Your Personal Information At Great-West Life, we recognize and respectAll Regular Part-Time and Temporary Full-Time Employees #12;Great-West Life is a leading Canadian

  13. Equivalence and Order Section 1: Equivalence

    E-Print Network [OSTI]

    Bernstein, Daniel

    Unit EO Equivalence and Order Section 1: Equivalence The concept of an equivalence relation to us, as "equivalence relation" turns out to be just another name for "partition of a set." Our start with the definition. Definition 1 (Equivalence relation) An equivalence relation on a set

  14. Microsoft Word - Alcoa Contract DRAFT 10 09 12 _BLACKLINE_.doc

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

    F. "FTE" shall mean full-time annual equivalent employment (including part-time and partial year) for regular employees of Alcoa at the Intalco Plant and contractor employees...

  15. Microsoft Word - Alcoa Contract 12-09-09 blackline signature...

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

    G. "FTE" shall mean full-time annual equivalent employment (including part-time and partial year) for regular employees of Alcoa at the Intalco Plant and contractor employees...

  16. Objective Full-time position as a software engineer, interested in data mining, machine learning, and database Information

    E-Print Network [OSTI]

    Zordan, Victor

    Modeling on Sequential Data Mining · Integrated heuristic methods to largely minimize the construction costLexiang Ye Objective Full-time position as a software engineer, interested in data mining, machine University of California, Riverside, CA, USA Ph.D., Computer Science and Engineering Sep 2006 - Dec 2009

  17. Funding Guidelines for Full-Time Registered Graduate Students in the Department of Chemical and Petroleum Engineering

    E-Print Network [OSTI]

    Calgary, University of

    of Philosophy (PhD) programs in the Department of Chemical and Petroleum Engineering are guaranteed at the time of Chemical and Petroleum Engineering #12; and Petroleum Engineering Full-time graduate students admitted to the Master of Science (MSc) and the Doctor

  18. Testing Model Nesting and Equivalence

    E-Print Network [OSTI]

    Peter M. Bentler; Albert Satorra

    2011-01-01T23:59:59.000Z

    sense of observational equivalence, implying that theirModel Nesting and Equivalence* Peter M. Bentler UniversityModel Nesting and Equivalence Using existing technology, it

  19. Testing Model Nesting and Equivalence

    E-Print Network [OSTI]

    Bentler, Peter M.; Satorra, Albert

    2008-01-01T23:59:59.000Z

    sense of observational equivalence, implying that theirModel Nesting and Equivalence* Peter M. Bentler UniversityModel Nesting and Equivalence Using existing technology, it

  20. PJnazFte

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7 AugustAFRICAN .METALS~ c3ppY-.I 'PI' --

  1. Causal equivalence of frames

    E-Print Network [OSTI]

    Henderson, Troy Lee, IV

    2006-10-30T23:59:59.000Z

    Major Subject: Mathematics August 2005 DOCTOR OF PHILOSOPHY in partial fulfillment of the requirements for the degree of Texas A&M University Submitted to the Office of Graduate Studies of TROY LEE HENDERSON, IV by A Dissertation CAUSAL EQUIVALENCE... to the Office of Graduate Studies of TROY LEE HENDERSON, IV by A Dissertation CAUSAL EQUIVALENCE OF FRAMES iii ABSTRACT Causal Equivalence of Frames. (August 2005) Troy Lee Henderson, IV, B.S., The University of Alabama; M.A., The University of Alabama Chair...

  2. Nonequivalence of equivalence principles

    E-Print Network [OSTI]

    Eolo Di Casola; Stefano Liberati; Sebastiano Sonego

    2015-03-18T23:59:59.000Z

    Equivalence principles played a central role in the development of general relativity. Furthermore, they have provided operative procedures for testing the validity of general relativity, or constraining competing theories of gravitation. This has led to a flourishing of different, and inequivalent, formulations of these principles, with the undesired consequence that often the same name, "equivalence principle", is associated with statements having a quite different physical meaning. In this paper we provide a precise formulation of the several incarnations of the equivalence principle, clarifying their uses and reciprocal relations. We also discuss their possible role as selecting principles in the design and classification of viable theories of gravitation.

  3. Beyond Network Equivalence

    E-Print Network [OSTI]

    Koetter, Ralf

    In earlier work, we described an equivalence result for network capacity. Roughly, that result is as follows. Given a network of noisy, memoryless, point-to-point channels, replace each channel by a noiseless, memoryless ...

  4. Neutron dose equivalent meter

    DOE Patents [OSTI]

    Olsher, Richard H. (Los Alamos, NM); Hsu, Hsiao-Hua (Los Alamos, NM); Casson, William H. (Los Alamos, NM); Vasilik, Dennis G. (Los Alamos, NM); Kleck, Jeffrey H. (Menlo Park, CA); Beverding, Anthony (Foster City, CA)

    1996-01-01T23:59:59.000Z

    A neutron dose equivalent detector for measuring neutron dose capable of accurately responding to neutron energies according to published fluence to dose curves. The neutron dose equivalent meter has an inner sphere of polyethylene, with a middle shell overlying the inner sphere, the middle shell comprising RTV.RTM. silicone (organosiloxane) loaded with boron. An outer shell overlies the middle shell and comprises polyethylene loaded with tungsten. The neutron dose equivalent meter defines a channel through the outer shell, the middle shell, and the inner sphere for accepting a neutron counter tube. The outer shell is loaded with tungsten to provide neutron generation, increasing the neutron dose equivalent meter's response sensitivity above 8 MeV.

  5. Equivalence of Real Elliptic CurvesEquivalence of Real Elliptic Curves Part 2Part 2 --Birational EquivalenceBirational Equivalence

    E-Print Network [OSTI]

    Broughton, S. Allen

    1 Equivalence of Real Elliptic CurvesEquivalence of Real Elliptic Curves Part 2Part 2 -- Birational EquivalenceBirational Equivalence Allen Broughton Rose-Hulman Institute of Technology #12;2 CreditsCredits Discussion with Ken McMurdy #12;3 OutlineOutline -- 11 Recap of linear equivalence Complex elliptic curves

  6. Equivalence and Strong Equivalence between Sparsest and Least ...

    E-Print Network [OSTI]

    2013-12-15T23:59:59.000Z

    Equivalence and Strong Equivalence between. Sparsest and Least l1-Norm Nonnegative Solutions of. Linear Systems and Their Application. YUN-BIN ZHAO ?.

  7. Confounding Equivalence in Causal Inference

    E-Print Network [OSTI]

    Pearl, Judea; Paz, Azaria

    2010-01-01T23:59:59.000Z

    July 2010 Confounding Equivalence in Causal Inference Judeawise process of testing c-equivalence, T ? T 1 ? T 2 ? . . .wish to assess, using c-equivalence tests, whether a given

  8. Free products, Orbit Equivalence and Measure Equivalence Rigidity

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Free products, Orbit Equivalence and Measure Equivalence Rigidity Aur´elien Alvarez and Damien Gaboriau February 18, 2009 Abstract We study the analogue in orbit equivalence of free product decomposition and free indecomposability for countable groups. We introduce the (orbit equivalence invariant

  9. Equivalence relations which reduce all Borel equivalence relations

    E-Print Network [OSTI]

    Clemens, John D.

    Equivalence relations which reduce all Borel equivalence relations John D. Clemens June 25, 2007 Abstract We study equivalence relations E such that every Borel equiva- lence relation is Borel reducible of equality of Borel sets, and show that this is not a minimal such re- lation among co-analytic equivalence

  10. Equivalence Principle and Clocks

    E-Print Network [OSTI]

    T. Damour

    1999-04-14T23:59:59.000Z

    String theory suggests the existence of gravitational-strength scalar fields ("dilaton" and "moduli") whose couplings to matter violate the equivalence principle. This provides a new motivation for high-precision clock experiments, as well as a generic theoretical framework for analyzing their significance.

  11. Plutonium 239 Equivalency Calculations

    SciTech Connect (OSTI)

    Wen, J

    2011-05-31T23:59:59.000Z

    This document provides the basis for converting actual weapons grade plutonium mass to a plutonium equivalency (PuE) mass of Plutonium 239. The conversion can be accomplished by performing calculations utilizing either: (1) Isotopic conversions factors (CF{sub isotope}), or (2) 30-year-old weapons grade conversion factor (CF{sub 30 yr}) Both of these methods are provided in this document. Material mass and isotopic data are needed to calculate PuE using the isotopic conversion factors, which will provide the actual PuE value at the time of calculation. PuE is the summation of the isotopic masses times their associated isotopic conversion factors for plutonium 239. Isotopic conversion factors are calculated by a normalized equation, relative to Plutonium 239, of specific activity (SA) and cumulated dose inhalation affects based on 50-yr committed effective dose equivalent (CEDE). The isotopic conversion factors for converting weapons grade plutonium to PuE are provided in Table-1. The unit for specific activity (SA) is curies per gram (Ci/g) and the isotopic SA values come from reference [1]. The cumulated dose inhalation effect values in units of rem/Ci are based on 50-yr committed effective dose equivalent (CEDE). A person irradiated by gamma radiation outside the body will receive a dose only during the period of irradiation. However, following an intake by inhalation, some radionuclides persist in the body and irradiate the various tissues for many years. There are three groups CEDE data representing lengths of time of 0.5 (D), 50 (W) and 500 (Y) days, which are in reference [2]. The CEDE values in the (W) group demonstrates the highest dose equivalent value; therefore they are used for the calculation.

  12. > Web Developer Position at the T.C. Chan Center for Building Simulation and Energy > Needed Immediately: Full Time Web Developer.

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    > > Web Developer Position at the T.C. Chan Center for Building Simulation and Energy Studies. > Needed Immediately: Full Time Web Developer. > > * The web developer should have a BA of professional experience developing web based applications is required. Experience with web design is a must

  13. The associate of applied science degree in dental hygiene is an intensive, full-time endeavor that prepares you to take the American

    E-Print Network [OSTI]

    Hartman, Chris

    DENTAL HYGIENE The associate of applied science degree in dental hygiene is an intensive, full-time endeavor that prepares you to take the American Dental Association National Board Dental Hygiene exam-CTC@ALASKA.EDU WWW.CTC.UAF.EDU DENTAL HYGIENE Visit the Dental Hygiene Website: WWW.CTC.UAF.EDU/DH SAMPLE COURSES

  14. Landscape Ecology and Design The Faculty of Environmental Design at the University of Calgary invites applications for a full-time

    E-Print Network [OSTI]

    Habib, Ayman

    Landscape Ecology and Design The Faculty of Environmental Design at the University of Calgary invites applications for a full-time tenure-track position in Landscape Ecology and Design to the integration of design, ecology and culture in the making and managing of meaningful and functional human

  15. GENERATING EQUIVALENCE RELATIONS BY HOMEOMORPHISMS

    E-Print Network [OSTI]

    Clemens, John D.

    GENERATING EQUIVALENCE RELATIONS BY HOMEOMORPHISMS JOHN D. CLEMENS Abstract. We give a construction of a single homeomorphism of 2N which generates the equivalence relation E0. We then consider ways of generating this equivalence relation using homeomorphisms with nicer structural properties, and show

  16. Equivalence in Ventilation and Indoor Air Quality

    E-Print Network [OSTI]

    Sherman, Max

    2012-01-01T23:59:59.000Z

    Equivalence in Ventilation and Indoor Air Quality M. H.have a method for determining equivalence in terms of eitherwe need to establish an equivalence principle that allows

  17. Recursion theory and countable Borel equivalence relations

    E-Print Network [OSTI]

    Marks, Andrew

    2012-01-01T23:59:59.000Z

    and countable Borel equivalence ii 2 Overture 2.1 A simplecountable Borel equivalence relations 3.1 Consequences ofof arithmetic equivalence . . . . . . . . . . 3.2 Ergodicity

  18. Expression equivalence checking using interval analysis

    E-Print Network [OSTI]

    Ghodrat, Mohammad Ali; Givargis, Tony; Nicolau, Alex

    2006-01-01T23:59:59.000Z

    Z. Zhou and W. Burleson, “Equivalence checking of datapathsusing combinational equivalence for extensible processor,”et al. : EXPRESSION EQUIVALENCE CHECKING USING INTERVAL

  19. Equivalence Principle and Gravitational Redshift

    SciTech Connect (OSTI)

    Hohensee, Michael A.; Chu, Steven; Mueller, Holger [Department of Physics, University of California, Berkeley, California 94720 (United States); Peters, Achim [Institut fuer Physik, Humboldt-Universitaet zu Berlin, Newtonstrasse 15, 12489 Berlin (Germany)

    2011-04-15T23:59:59.000Z

    We investigate leading order deviations from general relativity that violate the Einstein equivalence principle in the gravitational standard model extension. We show that redshift experiments based on matter waves and clock comparisons are equivalent to one another. Consideration of torsion balance tests, along with matter-wave, microwave, optical, and Moessbauer clock tests, yields comprehensive limits on spin-independent Einstein equivalence principle-violating standard model extension terms at the 10{sup -6} level.

  20. SAPONIFICATION EQUIVALENT OF DASAMULA TAILA

    E-Print Network [OSTI]

    R. B. Saxena

    1994-01-01T23:59:59.000Z

    ABSTRACT: Saponification equivalent values of Dasamula taila are very useful for the technical and analytical work. It gives the mean molecular weight of the glycerides and acids present in Dasamula Taila. Saponification equivalent values of Dasamula taila are reported in different packings.

  1. Mathematical Equivalence vs. Physical Equivalence between Extended Theories of Gravitations

    E-Print Network [OSTI]

    L. Fatibene; M. Francaviglia

    2013-02-12T23:59:59.000Z

    We shall show that although Palatini f(R)-theories are equivalent to Brans-Dicke theories, still the first pass the Mercury precession of perihelia test, while the second do not. We argue that the two models are not physically equivalent due to a different assumptions about free fall. We shall also go through perihelia test without fixing a conformal gauge (clocks or rulers) in order to highlight what can be measured in a conformal invariant way and what cannot. We shall argue that the conformal gauge is broken by choosing a definition of clock, rulers or, equivalently, of masses.

  2. Analytic equivalence relations and bi-embeddability

    E-Print Network [OSTI]

    Ros, Luca Motto

    Analytic equivalence relations and bi-embeddability Luca Motto Ros Kurt G¨odel Research Center Analytic equivalence relations and bi-embeddability #12;Analytic equivalence relations A subset of a Polish Analytic equivalence relations and bi-embeddability #12;Analytic equivalence relations A subset of a Polish

  3. Morita Equivalence in Deformation Quantization Henrique Bursztyn

    E-Print Network [OSTI]

    Bursztyn, Henrique

    Morita Equivalence in Deformation Quantization by Henrique Bursztyn Engineer (Universidade Federal at Berkeley Spring 2001 #12;Morita Equivalence in Deformation Quantization Copyright 2001 by Henrique Bursztyn #12;1 Abstract Morita Equivalence in Deformation Quantization by Henrique Bursztyn Doctor

  4. Analytic equivalence of geometric transitions

    E-Print Network [OSTI]

    Michele Rossi

    2014-08-28T23:59:59.000Z

    In this paper \\emph{analytic equivalence} of geometric transition is defined in such a way that equivalence classes of geometric transitions turn out to be the \\emph{arrows} of the \\cy web. Then it seems natural and useful, both from the mathematical and physical point of view, look for privileged arrows' representatives, called \\emph{canonical models}, laying the foundations of an \\emph{analytic} classification of geometric transitions. At this purpose a numerical invariant, called \\emph{bi--degree}, summarizing the topological, geometric and physical changing properties of a geometric transition, is defined for a large class of geometric transitions.

  5. 6 Year Graduation Model for Full-time Freshmen (Non-SEEK) Students * Students labeled `Not Enrolled' in the charts are either stop outs (may return to QC after a semester off) or drop outs or transfers in this study.

    E-Print Network [OSTI]

    Johnson Jr.,, Ray

    6 Year Graduation Model for Full-time Freshmen (Non-SEEK) Students * Students labeled `Not Enrolled' in the charts are either stop outs (may return to QC after a semester off) or drop outs or transfers Graduation Model for Full-time Transfer Students * Students labeled `Not Enrolled' in the charts are either

  6. Section 3.3 Equivalence Relations1 Section 3.3 Equivalence RelationSection 3.3 Equivalence RelationSection 3.3 Equivalence RelationSection 3.3 Equivalence Relationssss

    E-Print Network [OSTI]

    Farlow, Jerry

    Section 3.3 Equivalence Relations1 Section 3.3 Equivalence RelationSection 3.3 Equivalence RelationSection 3.3 Equivalence RelationSection 3.3 Equivalence Relationssss Purpose of SectionPurpose of SectionPurpose of SectionPurpose of Section To introduce the concept of an equivalence relationequivalence

  7. Equivalence of Learning Algorithms Julien Audiffren1

    E-Print Network [OSTI]

    Equivalence of Learning Algorithms Julien Audiffren1 and Hachem Kadri2 1 CMLA, ENS Cachan is to introduce a concept of equivalence between machine learn- ing algorithms. We define two notions of algorithmic equivalence, namely, weak and strong equivalence. These notions are of paramount importance

  8. EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE, BY MATRIX EQUIVALENCE OVER

    E-Print Network [OSTI]

    Boyle, Mike

    EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE, BY MATRIX EQUIVALENCE OVER GROUP RINGS MIKE equivalence of nontrivial irreducible shifts of finite type in terms of (i) elementary equivalence of matrices. In the case G = Z/2, we have the classification for twistwise flow equivalence. We include some algebraic

  9. EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE, BY MATRIX EQUIVALENCE OVER

    E-Print Network [OSTI]

    Sullivan, Michael

    EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE, BY MATRIX EQUIVALENCE OVER GROUP RINGS MIKE equivalence of nontrivial irreducible shifts of #12;nite type in terms of (i) elementary equivalence vertex. In the case G = Z=2, we have the classi#12;cation for twistwise ow equivalence. We include some

  10. Optimization Online - Equivalence of Convex Problem Geometry ...

    E-Print Network [OSTI]

    Robert Freund

    2009-02-07T23:59:59.000Z

    Feb 7, 2009 ... Equivalence of Convex Problem Geometry and Computational Complexity in the Separation Oracle Model. Robert Freund (rfreund ***at*** ...

  11. Snow water equivalent estimation using blackbox optimization

    E-Print Network [OSTI]

    Alarie et al.

    2011-02-23T23:59:59.000Z

    Feb 23, 2011 ... Abstract: Accurate measurements of snow water equivalent (SWE) is an ... managing water resources for hydroelectric power generation.

  12. EQUIVALENCE RELATIONS ON ALGEBRAIC CYCLES UWE JANNSEN

    E-Print Network [OSTI]

    EQUIVALENCE RELATIONS ON ALGEBRAIC CYCLES UWE JANNSEN Mathematisches Institut Universit¨at zu K, and it is common to study the groups of algebraic cycles via so­called adequate equivalence relations. For example, the basic Chow groups are defined by considering cycles modulo rational equivalence. Rational, algebraic

  13. Characterizing Contextual Equivalence in Calculi with Passivation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Characterizing Contextual Equivalence in Calculi with Passivation Sergue¨i Lengleta , Alan Schmittb We study the problem of characterizing contextual equivalence in higher-order languages of contextual equivalence in the HOP calculus, an extension of the higher-order -calculus with passivation

  14. ACQUIRED EQUIVALENCE CHANGES STIMULUS REPRESENTATIONS , D. SHOHAMY

    E-Print Network [OSTI]

    Shohamy, Daphna

    ACQUIRED EQUIVALENCE CHANGES STIMULUS REPRESENTATIONS M. MEETER 1 , D. SHOHAMY 2 , AND C.E. MYERS 3 UNIVERSITY 3 DEPT. OF PSYCHOLOGY, RUTGERS UNIVERSITY Acquired equivalence is a paradigm in which of feature salience. A different way of conceptualizing acquired equivalence is in terms of strategic

  15. Operational Equivalence of Graph Transformation Systems

    E-Print Network [OSTI]

    Sarna-Starosta, Beata

    Operational Equivalence of Graph Transformation Systems Frank Raiser and Thom Fr¨uhwirth Faculty. With the growing number of GTS- based applications the comparison of operational equivalence of two GTS becomes an important area of research. This work introduces a notion of operational equivalence for graph

  16. Categorical Equivalence of Varieties and Invariant Relations

    E-Print Network [OSTI]

    Jipsen, Peter

    Categorical Equivalence of Varieties and Invariant Relations K. Denecke and O. Lders August 21. In applications the weaker concept of an equivalence between categories is used more often than the concept is equivalent with the category of all vector spaces which are dual to the vector spaces from C. For two

  17. 8 Equivalence Relations 8.1 Relations

    E-Print Network [OSTI]

    Gera, Ralucca

    8 Equivalence Relations 8.1 Relations 1. for sets A and B we define a relation from A to B have that if (a, b) R and (b, c) R then (a, c) R 8.3 Equivalence Relations 1. a relation is an equivalence relation if it is reflexive, symmetric and transitive 2. if a relation R on a set

  18. Equivalence of Julesz Ensembles and Frame Models

    E-Print Network [OSTI]

    Ying Nian Wu; Song Chun Zhu; Xiu Wen Liu

    2011-01-01T23:59:59.000Z

    o f , A . 1979. " T h e equivalence of ensembles a n d G i bEquivalence of Julesz Ensembles and F R A M E Models Y i n gr i n c i p l e of equivalence of ensembles i n statistical

  19. Orbit equivalence for Cantor minimal Zd

    E-Print Network [OSTI]

    Putnam, Ian F.

    Orbit equivalence for Cantor minimal Zd -systems Thierry Giordano Department of Mathematics on the Cantor set is (topologically) orbit equivalent to an AF relation. As a consequence, this extends the classification up to orbit equivalence of minimal dynamical systems on the Cantor set to include AF relations

  20. The Non-Equivalence of Empirically Equivalent Theories: The Case of Hidden Variables in

    E-Print Network [OSTI]

    Chopra, Samir

    The Non-Equivalence of Empirically Equivalent Theories: The Case of Hidden Variables in Quantum 43rd Street New York, NY 10036 schopra@broadway.gc.cuny.edu September 28, 2000 1 #12; The Non-Equivalence of Empirically Equivalent Theories: The Case of Hidden Variables in Quantum Mechanics 1 Introduction The problem

  1. Limits of Equivalence: Thinking Gay Male Subjectivity Outside Feminist Theory

    E-Print Network [OSTI]

    Galloway, Samuel R.

    2010-01-01T23:59:59.000Z

    Limits of Equivalence: Thinking Gay Male Subjectivityor this limit of equivalence? The problem, of course, ispaper, the limits of equivalence emerge: while all subjects

  2. About Orientifold Planar Equivalence on the Lattice

    E-Print Network [OSTI]

    Agostino Patella

    2006-10-04T23:59:59.000Z

    The orientifold planar equivalence is the equivalence in the large-N limit of the bosonic sectors of the super Yang-Mills and the QCD with a quark in the antisymmetric representation. I give a sketch of the proof of the orientifold planar equivalence in the strong-coupling and large-mass phase on the lattice. It is still matter of discussion, if its validity extends also in the continuum limit.

  3. ENROLMENT REPORT 2006-07: ACTUAL AND PROJECTED ENROLMENT

    E-Print Network [OSTI]

    between 2000-01 and 2005-06. Funding was also provided to support limited graduate growth between 2000 at the University of Toronto in Fall 2006, an increase of 1,095 students over 2005-06. Full-time-equivalent (FTE. Enrolment reached 50,127 FTEs in 2005-06, compared to 41,620 in 2002-03 -- an increase of 8,507 FTEs, or 20

  4. B-Tech. CO-OP REGISTRATION CONTRACT 1. Co-op students must be full-time (18+units) and in good standing in the B.Tech. Program (student record indicates "may continue in

    E-Print Network [OSTI]

    Haykin, Simon

    B-Tech. CO-OP REGISTRATION CONTRACT 1. Co-op students must be full-time (18+units) and in good.5) as defined by the B.Tech. Program. 2. Co-op programs are competitive and work terms are not guaranteed. Students are strongly encouraged to work with Engineering Co- op & Career Services (ECCS) to develop

  5. Optimization Online - Equivalence of an Approximate Linear ...

    E-Print Network [OSTI]

    Alejandro Toriello

    2013-02-07T23:59:59.000Z

    Feb 7, 2013 ... Equivalence of an Approximate Linear Programming Bound with the Held-Karp Bound for the Traveling Salesman Problem. Alejandro Toriello ...

  6. Optimization Online - On Equivalence of Semidefinite Relaxations ...

    E-Print Network [OSTI]

    Yichuan Ding

    2010-04-28T23:59:59.000Z

    Apr 28, 2010 ... On Equivalence of Semidefinite Relaxations for Quadratic Matrix Programming. Yichuan Ding(y7ding ***at*** stanford.edu) Dongdong ...

  7. Energy Conservation Project Evaluation by Investment Equivalents

    E-Print Network [OSTI]

    Larson, R. J.

    1984-01-01T23:59:59.000Z

    proposals, justify energy conservation projects, and choose between energy sensitive alternatives. Investment Equivalents are calculated and are used to evaluate energy savings proposals in sample problems....

  8. Snow water equivalent estimation using blackbox optimization

    E-Print Network [OSTI]

    Stéphane Alarie

    2011-03-07T23:59:59.000Z

    Mar 7, 2011 ... Abstract: Accurate measurements of snow water equivalent (SWE) is an important factor in managing water resources for hydroelectric power ...

  9. Equivalence of Convex Problem Geometry and Computational ...

    E-Print Network [OSTI]

    2009-01-19T23:59:59.000Z

    Equivalence of Convex Problem Geometry and Computational Complexity in the Separation Oracle Model?. Robert M. Freund†and Jorge Vera‡. January 2009.

  10. 2013 INTERNSHIP REPORT RICE MBA FULL TIME

    E-Print Network [OSTI]

    Richards-Kortum, Rebecca

    Associate EDP Renewables Krishna Desai Summer Associate Jessica Proano Summer Associate Education Pioneers Juan Caro Intern ChaiOne Manika Bahuguna Marketing Intern Cheniere Energy James Lewis Strategic Jennifer Lewis Education Pioneer Fellow Gabrielle Gunn Education Pioneer Fellow Energy Ventures Sudhanshu

  11. 2010 EMPLOYMENT REPORT RICE MBA FULL TIME

    E-Print Network [OSTI]

    Retirement System of Texas (TRS) Tony Yui Investment Division Associate Tessera Solar North America Neha Energy Company Mary-Margaret Miller Operational Risk Manager Chevron Katya Karamysheva Financial Analyst Enterprise Products Partners, L.P. Tyler Wharton Commercial Analyst ExxonMobil Mark Cox Field Engineer Karan

  12. CAREER PLANS Full-time Employment -56%

    E-Print Network [OSTI]

    Sharp, Kim

    ., Foster Care, Social Worker, Philadelphia, PA Community Education Centers, Inc., Bo Robinson Assessment, Residential Treatment, Residential Therapist, Rosemont, PA University of California, San Francisco, Psychiatry - Division of Substance Abuse and Addiction Medicine, Social

  13. Regular Full-Time Staff and Management

    E-Print Network [OSTI]

    ; as well as life, disability and critical illness insurance for individuals and families. As a leading contains important information and should be kept in a safe place known to you and your family. The Plan is underwritten by 10-11 #12;Protecting Your Personal Information At Great-West Life, we recognize and respect

  14. Guessing Attacks and the Computational Soundness of Static Equivalence

    E-Print Network [OSTI]

    Warinschi, Bogdan

    Guessing Attacks and the Computational Soundness of Static Equivalence Martin Abadi1 , Mathieu static equivalence. Static equivalence depends on an underlying equa- tional theory. The choice, fundamental cryp- tographic operations. This equational theory yields a notion of static equivalence

  15. Borel equivalence relations which are highly unfree Greg Hjorth

    E-Print Network [OSTI]

    Hjorth, Greg

    * Borel equivalence relations Abstract There is an ergodic, measure preserving, countable Borel equivalence rel* *ation E equivalence relati* *ons may be reduced to Borel equivalence relations arising from a free group action

  16. The Equivalence of Linear Programs and Zero-Sum Games

    E-Print Network [OSTI]

    2012-01-15T23:59:59.000Z

    In 1951, Dantzig showed the equivalence of linear programming problems and ... This note concerns the equivalence between linear programming (LP) ...

  17. Remarks on statistical errors in equivalent widths

    E-Print Network [OSTI]

    Klaus Vollmann; Thomas Eversberg

    2006-07-03T23:59:59.000Z

    Equivalent width measurements for rapid line variability in atomic spectral lines are degraded by increasing error bars with shorter exposure times. We derive an expression for the error of the line equivalent width $\\sigma(W_\\lambda)$ with respect to pure photon noise statistics and provide a correction value for previous calculations.

  18. THEOREM 1.1.1 The distinct equivalence classes of an equivalence ...

    E-Print Network [OSTI]

    Preliminary Notions Ch.1. THEOREM 1.1.1 The distinct equivalence classes of an equivalence relation on A provide us with a decomposition of A as a union of ...

  19. Equivalence in Ventilation and Indoor Air Quality

    SciTech Connect (OSTI)

    Sherman, Max; Walker, Iain; Logue, Jennifer

    2011-08-01T23:59:59.000Z

    We ventilate buildings to provide acceptable indoor air quality (IAQ). Ventilation standards (such as American Society of Heating, Refrigerating, and Air-Conditioning Enginners [ASHRAE] Standard 62) specify minimum ventilation rates without taking into account the impact of those rates on IAQ. Innovative ventilation management is often a desirable element of reducing energy consumption or improving IAQ or comfort. Variable ventilation is one innovative strategy. To use variable ventilation in a way that meets standards, it is necessary to have a method for determining equivalence in terms of either ventilation or indoor air quality. This study develops methods to calculate either equivalent ventilation or equivalent IAQ. We demonstrate that equivalent ventilation can be used as the basis for dynamic ventilation control, reducing peak load and infiltration of outdoor contaminants. We also show that equivalent IAQ could allow some contaminants to exceed current standards if other contaminants are more stringently controlled.

  20. Equivalence Relations in Set Theory, Computation Theory and Complexity Theory

    E-Print Network [OSTI]

    Equivalence Relations in Set Theory, Computation Theory and Complexity Theory Denable Equivalence-preserving transformations Unitary equivalence of unitary operators Conformal equivalence of Riemann surfaces These are analytic (1 1 with parameters) equivalence relations on Polish spaces (think of the reals) #12;Equivalence

  1. Bisimulations Meet PCTL Equivalences for Probabilistic Automata

    E-Print Network [OSTI]

    Song, Lei; Godskesen, Jens Chr

    2011-01-01T23:59:59.000Z

    Probabilistic automata (PA) have been successfully applied in the formal verification of concurrent and stochastic systems. Efficient model checking algorithms have been studied, where the most often used logics for expressing properties are based on PCTL and its extension PCTL*. Various behavioral equivalences are proposed for PAs, as a powerful tool for abstraction and compositional minimization for PAs. Unfortunately, the behavioral equivalences are well-known to be strictly stronger than the logical equivalences induced by PCTL or PCTL*. This paper introduces novel notions of strong bisimulation relations, which characterizes PCTL and PCTL* exactly. We also extend weak bisimulations characterizing PCTL and PCTL* without next operator, respectively. Thus, our paper bridges the gap between logical and behavioral equivalences in this setting.

  2. Equivalence semantics for concurrency: comparison and application 

    E-Print Network [OSTI]

    Galpin, Vashti C

    are described by structured operational semantics, and expressed as labelled transition systems. I first consider a hierarchy of bisimulations for extensions to CCS, using both existing and new results to describe the relationships between their equivalences...

  3. Testing Equivalence Probabilistically Adnan Darwiche and Jinbo Huang

    E-Print Network [OSTI]

    Huang, Jinbo

    Testing Equivalence Probabilistically Adnan Darwiche and Jinbo Huang Computer Science Department the equivalence of two Ordered Binary Decision Diagrams (OBDDs) can be decided in polynomial time, the equivalence the interest in testing their equivalence. We show that the probabilistic equivalence test for FBDDs holds

  4. Equivalence Structures and Isomorphisms in the Difference Hierarchy

    E-Print Network [OSTI]

    Cenzer, Douglas

    Equivalence Structures and Isomorphisms in the Difference Hierarchy D. Cenzer, G. LaForte and J- ence hierarchy, and of equivalence structures in particular. A equivalence structure A = (A, E) has universe A = and an equivalence relation E. The equivalence class [a] of a A is {b A : a

  5. Advanced Electric Drive Vehicle Education Program

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

    project completion with potential reach of over 100,000 individuals * Project Job Statistics: - Project Year 1 Creation of 17.5 Full Time Employment (FTE) Jobs Retention...

  6. S-EQUIVALENCE OF KNOTS Abstract. S-equivalence of classical knots is investigated, as well as its rela-

    E-Print Network [OSTI]

    Kearton, Cherry

    S-EQUIVALENCE OF KNOTS C. KEARTON Abstract. S-equivalence of classical knots is investigated. Finally, we show that every knot is S-equivalent to a prime knot. 1. Introduction An oriented knot k matrices of the same knot are S-equivalent: the definition of S-equivalence is given in, for example, [14

  7. On the Equivalence of Constrained and Compound Optimal Designs

    E-Print Network [OSTI]

    R. Dennis Cook; Weng-Kee Wong

    2011-01-01T23:59:59.000Z

    O n the Equivalence o f C o n s t r a i n e d and C o m p owww.jstor.org On the Equivalence of Constrained and Compoundstandard methodology. Equivalence theorems for specific

  8. SOME APPLICATIONS OF SUPERRIGIDITY TO BOREL EQUIVALENCE RELATIONS

    E-Print Network [OSTI]

    Thomas, Simon

    SOME APPLICATIONS OF SUPERRIGIDITY TO BOREL EQUIVALENCE RELATIONS SIMON THOMAS Abstract.There exists a countable Borel equivalence relation E countable Borel equivalence re* *la- tions. (For example, see [2], [11], [12].) In particular, Adams [1

  9. On the equivalence of nonadiabatic fluids

    E-Print Network [OSTI]

    W. Barreto

    2010-11-17T23:59:59.000Z

    Here we show how an anisotropic fluid in the diffusion limit can be equivalent to an isotropic fluid in the streaming out limit, in spherical symmetry. For a particular equation of state this equivalence is total, from one fluid we can obtain the other and vice versa. A numerical master model is presented, based on a generic equation of state, in which only quantitative differences are displayed between both nonadiabatic fluids. From a deeper view, other difference between fluids is shown as an asymmetry that can be overcome if we consider the appropriate initial-boundary conditions. Equivalence in this context can be considered as a first order method of approximation to study dissipative fluids.

  10. On Equivalence of Semidefinite Relaxations for Quadratic Matrix ...

    E-Print Network [OSTI]

    2010-04-28T23:59:59.000Z

    Apr 28, 2010 ... 2.2 Equivalence of Vector and Matrix Lifting for QMP1 .... A Schur complement argument now implies the equivalence of this relaxation to the ...

  11. Full-Time Students *Full-time students are assessed 12 different mandatory activity/service

    E-Print Network [OSTI]

    MacAdam, Keith

    Education Abroad, Rural Health and Paducah Engineering students. · Students with all distance learning

  12. Full-TimeStudents *Full-time students are assessed 12 different mandatory activity/service

    E-Print Network [OSTI]

    MacAdam, Keith

    Education Abroad, Rural Health and Paducah Engineering students. · Students with all distance learning

  13. Full-Time Students *Full-time students are assessed 12 different mandatory activity/service

    E-Print Network [OSTI]

    MacAdam, Keith

    counties). Specific groups tradi- tionally include Education Abroad, Rural Health and Paducah Engineering

  14. Home/EU International Full-time Part-time Full-time

    E-Print Network [OSTI]

    Evans, Paul

    by Research Applied Biosciences (with pathways in Biotechnology, Cancer Biology, Environmental Management Biology £4,900 £2,450 £11,300 MSc Biotechnology £4,900 £2,450 £11,300 MRes Applied Biosciences (with pathways in Cancer Biology, Cell Biology, Environmental Biology, Microbiology, Molecular Biology

  15. An Introduction to Decidability of DPDA Equivalence

    E-Print Network [OSTI]

    Stirling, Colin

    University of Edinburgh email: cps@dcs.ed.ac.uk 1 Introduction The DPDA equivalence problem was posed in 1966 produced a different proof of decidability that is essentially a simplification of S´enizergues's proof [14, the tableau proof system uses conditional proof rules that involve distances between premises. Essentially

  16. An Introduction to Decidability of DPDA Equivalence

    E-Print Network [OSTI]

    Stirling, Colin

    University of Edinburgh email: cps@dcs.ed.ac.uk 1 Introduction The DPDA equivalence problem was posed in 1966 produced a di#erent proof of decidability that is essentially a simplification of Sâ??enizergues's proof [14, the tableau proof system uses conditional proof rules that involve distances between premises. Essentially

  17. An Equivalence Between Sparse Approximation and Support Vector Machines 1

    E-Print Network [OSTI]

    Poggio, Tomaso

    An Equivalence Between Sparse Approximation and Support Vector Machines 1 Federico Girosi Center is equivalent to SVM in the following sense: if applied to the same data set the two techniques give the same; Chen, Donoho and Saunders, 1995), are actually equivalent, in the case of noiseless data. By equivalent

  18. Guessing Attacks and the Computational Soundness of Static Equivalence

    E-Print Network [OSTI]

    Abadi, Martín

    Guessing Attacks and the Computational Soundness of Static Equivalence Mart´in Abadi1 , Mathieu static equivalence. Static equivalence depends on an underlying equa- tional theory. The choice, fundamental cryp- tographic operations. This equational theory yields a notion of static equivalence

  19. A Stronger Notion of Equivalence for Logic Programs

    E-Print Network [OSTI]

    New South Wales, University of

    A Stronger Notion of Equivalence for Logic Programs Ka-Shu Wong University of New South Wales Sydney 2052, Australia #12;Abstract Several different notions of equivalence have been proposed for logic programs with answer set semantics, most notably strong equivalence. However, strong equivalence

  20. EQUIVALENCE RELATIONS FOR TWO VARIABLE REAL ANALYTIC FUNCTION GERMS

    E-Print Network [OSTI]

    EQUIVALENCE RELATIONS FOR TWO VARIABLE REAL ANALYTIC FUNCTION GERMS SATOSHI KOIKE & ADAM PARUSI´NSKI Abstract. For two variable real analytic function germs we compare the blow- analytic equivalence in the sense of Kuo to the other natural equivalence relations. Our main theorem states that C1 equivalent

  1. THIN EQUIVALENCE RELATIONS AND INNER MODELS PHILIPP SCHLICHT

    E-Print Network [OSTI]

    Schlicht, Philipp

    THIN EQUIVALENCE RELATIONS AND INNER MODELS PHILIPP SCHLICHT Abstract. We describe the inner models with representatives in all equiv- alence classes of thin equivalence relations in a given projective pointclass does not add equivalence classes to thin projective equivalence relations. For example, we show

  2. CCZ and EA Equivalence between Mappings over Finite Abelian Groups

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    CCZ and EA Equivalence between Mappings over Finite Abelian Groups Alexander Pott1 and Yue Zhou1, 410073 Changsha, P.R.China alexander.pott@ovgu.de,yue.zhou@st.ovgu.de Abstract. CCZ- and EA-equivalence abelian groups G and H. We obtain an extension theorem for CCZ- equivalent but not EA-equivalent mappings

  3. COUNTABLE ABELIAN GROUP ACTIONS AND HYPERFINITE EQUIVALENCE RELATIONS

    E-Print Network [OSTI]

    Gao, Su

    COUNTABLE ABELIAN GROUP ACTIONS AND HYPERFINITE EQUIVALENCE RELATIONS SU GAO AND STEVE JACKSON Abstract. An equivalence relation E on a standard Borel space is hyperfinite if E is the increasing union of countably many Borel equivalence relations En where all En-equivalence classs are finite. In this article we

  4. Equivalency-processing parallel photonic integrated circuit EP3

    E-Print Network [OSTI]

    Louri, Ahmed

    Equivalency-processing parallel photonic integrated circuit EP3 IC : equivalence search module present an optoelectronic module called the equivalency-processing parallel photonic integrated circuit EP3 IC that is created specifically to implement high-speed parallel equivalence searches i

  5. Strong Equivalence of Qualitative Optimization Problems

    E-Print Network [OSTI]

    Faber, Wolfgang; Woltran, Stefan

    2011-01-01T23:59:59.000Z

    We introduce the framework of qualitative optimization problems (or, simply, optimization problems) to represent preference theories. The formalism uses separate modules to describe the space of outcomes to be compared (the generator) and the preferences on outcomes (the selector). We consider two types of optimization problems. They differ in the way the generator, which we model by a propositional theory, is interpreted: by the standard propositional logic semantics, and by the equilibrium-model (answer-set) semantics. Under the latter interpretation of generators, optimization problems directly generalize answer-set optimization programs proposed previously. We study strong equivalence of optimization problems, which guarantees their interchangeability within any larger context. We characterize several versions of strong equivalence obtained by restricting the class of optimization problems that can be used as extensions and establish the complexity of associated reasoning tasks. Understanding strong equiv...

  6. Orientifold Planar Equivalence: The Quenched Meson Spectrum

    E-Print Network [OSTI]

    Biagio Lucini; Gregory Moraitis; Agostino Patella; Antonio Rago

    2010-10-28T23:59:59.000Z

    A numerical study of Orientifold Planar Equivalence is performed in SU(N) Yang-Mills theories for N=2,3,4,6. Quenched meson masses are extracted in the antisymmetric, symmetric and adjoint representations for the pseudoscalar and vector channels. An extrapolation of the vector mass as a function of the pseudoscalar mass to the large-N limit shows that the numerical results agree within errors for the three theories, as predicted by Orientifold Planar Equivalence. As a byproduct of the extrapolation, the size of the corrections up to O(1/N^3) are evaluated. A crucial prerequisite for the extrapolation is the determination of an analytical relationship between the corrections in the symmetric and in the antisymmetric representations, order by order in a 1/N expansion.

  7. Equivalence principle in scalar-tensor gravity

    E-Print Network [OSTI]

    Dirk Puetzfeld; Yuri N. Obukhov

    2015-05-06T23:59:59.000Z

    We present a direct confirmation of the validity of the equivalence principle for unstructured test bodies in scalar tensor gravity. Our analysis is complementary to previous approaches and valid for a large class of scalar-tensor theories of gravitation. A covariant approach is used to derive the equations of motion in a systematic way and allows for the experimental test of scalar-tensor theories by means of extended test bodies.

  8. Quantal Definition of the Weak Equivalence Principle

    E-Print Network [OSTI]

    Abel Camacho; Arturo Camacho-Guardian

    2008-11-03T23:59:59.000Z

    The present work analyzes the meaning of the Weak Equivalence Principle in the context of quantum mechanics. A quantal definition for this principle is introduced. This definition does not require the concept of trajectory and relies upon the phase shift induced by a gravitational field in the context of a quantum interference experiment of two coherent beams of particles. In other words, it resorts to wave properties of the system and not to classical concepts as the idea of trajectory.

  9. Einstein's Apple: His First Principle of Equivalence

    E-Print Network [OSTI]

    Engelbert L. Schucking; Eugene J. Surowitz

    2012-08-09T23:59:59.000Z

    After a historical discussion of Einstein's 1907 principle of equivalence, a homogeneous gravitational field in Minkowski spacetime is constructed. It is pointed out that the reference frames in gravitational theory can be understood as spaces with a flat connection and torsion defined through teleparallelism. This kind of torsion was introduced by Einstein in 1928. The concept of torsion is discussed through simple examples and some historical observations.

  10. Equivalent Circuit Modeling of Hysteresis Motors

    SciTech Connect (OSTI)

    Nitao, J J; Scharlemann, E T; Kirkendall, B A

    2009-08-31T23:59:59.000Z

    We performed a literature review and found that many equivalent circuit models of hysteresis motors in use today are incorrect. The model by Miyairi and Kataoka (1965) is the correct one. We extended the model by transforming it to quadrature coordinates, amenable to circuit or digital simulation. 'Hunting' is an oscillatory phenomenon often observed in hysteresis motors. While several works have attempted to model the phenomenon with some partial success, we present a new complete model that predicts hunting from first principles.

  11. Orientifold Planar Equivalence: The Chiral Condensate

    E-Print Network [OSTI]

    Adi Armoni; Biagio Lucini; Agostino Patella; Claudio Pica

    2008-09-29T23:59:59.000Z

    The recently introduced orientifold planar equivalence is a promising tool for solving non-perturbative problems in QCD. One of the predictions of orientifold planar equivalence is that the chiral condensates of a theory with $N_f$ flavours of Dirac fermions in the symmetric (or antisymmetric) representation and $N_f$ flavours of Majorana fermions in the adjoint representation have the same large $N$ value for any value of the mass of the (degenerate) fermions. Assuming the invariance of the theory under charge conjugation, we prove this statement on the lattice for staggered quenched condensates in SU($N$) Yang-Mills in the large $N$ limit. Then, we compute numerically those quenched condensates for $N$ up to 8. After separating the even from the odd corrections in $1/N$, we are able to show that our data support the equivalence; however, unlike other quenched observables, subleading terms in $1/N$ are needed for describing the data for the symmetric and antisymmetric representation at $N$=3. Possible lessons for the unquenched case are discussed.

  12. Gravitational leptogenesis, C, CP and strong equivalence

    E-Print Network [OSTI]

    J. I. McDonald; Graham M. Shore

    2014-11-13T23:59:59.000Z

    The origin of matter-antimatter asymmetry is one of the most important outstanding problems at the interface of particle physics and cosmology. Gravitational leptogenesis (baryogenesis) provides a possible mechanism through explicit couplings of spacetime curvature to appropriate lepton (or baryon) currents. In this paper, the idea that these strong equivalence principle violating interactions could be generated automatically through quantum loop effects in curved spacetime is explored, focusing on the realisation of the discrete symmetries C, CP and CPT which must be broken to induce matter-antimatter asymmetry. The related issue of quantum corrections to the dispersion relation for neutrino propagation in curved spacetime is considered within a fully covariant framework.

  13. Equivalence Principle and the Baryon Acoustic Peak

    E-Print Network [OSTI]

    Baldauf, Tobias; Simonovi?, Marko; Zaldarriaga, Matias

    2015-01-01T23:59:59.000Z

    We study the dominant effect of a long wavelength density perturbation $\\delta(\\lambda_L)$ on short distance physics. In the non-relativistic limit, the result is a uniform acceleration, fixed by the equivalence principle, and typically has no effect on statistical averages due to translational invariance. This same reasoning has been formalized to obtain a "consistency condition" on the cosmological correlation functions. In the presence of a feature, such as the acoustic peak at $l_{\\rm BAO}$, this naive expectation breaks down for $\\lambda_Lpower spectrum. Finally, the success of BAO reconstruction schemes is argue...

  14. Unit Conversion Factors Quantity Equivalent Values

    E-Print Network [OSTI]

    Ashurst, W. Robert

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

  15. The Equivalence Principle in a Quantum World

    E-Print Network [OSTI]

    Bjerrum-Bohr, N E J; El-Menoufi, Basem Kamal; Holstein, Barry R; Planté, Ludovic; Vanhove, Pierre

    2015-01-01T23:59:59.000Z

    We show how modern methods can be applied to quantum gravity at low energy. We test how quantum corrections challenge the classical framework behind the Equivalence Principle, for instance through introduction of non-locality from quantum physics, embodied in the Uncertainty Principle. When the energy is small we now have the tools to address this conflict explicitly. Despite the violation of some classical concepts, the EP continues to provide the core of the quantum gravity framework through the symmetry - general coordinate invariance - that is used to organize the effective field theory.

  16. The Equivalence Principle in a Quantum World

    E-Print Network [OSTI]

    N. E. J. Bjerrum-Bohr; John F. Donoghue; Basem Kamal El-Menoufi; Barry R. Holstein; Ludovic Planté; Pierre Vanhove

    2015-05-19T23:59:59.000Z

    We show how modern methods can be applied to quantum gravity at low energy. We test how quantum corrections challenge the classical framework behind the Equivalence Principle, for instance through introduction of non-locality from quantum physics, embodied in the Uncertainty Principle. When the energy is small we now have the tools to address this conflict explicitly. Despite the violation of some classical concepts, the EP continues to provide the core of the quantum gravity framework through the symmetry - general coordinate invariance - that is used to organize the effective field theory.

  17. AKS systems and Lepage equivalent problems

    E-Print Network [OSTI]

    Santiago Capriotti

    2011-01-06T23:59:59.000Z

    The integrable systems known as "AKS systems" admit a natural formulation in terms of a Hamiltonian picture. The Lagrangian side of these systems are far less known; a version in these terms can be found in a work of Feher et al. The purpose of these notes in to provide a novel description of AKS systems in terms of a variational problem different from the usual in mechanics. Additionally, and using techniques borrowed from an article of M. Gotay, it was possible to build the Hamiltonian side of this variational problem, allowing us to establish the equivalence with the usual approach to these integrable systems.

  18. Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility

    SciTech Connect (OSTI)

    Jack Q. Richardson

    2012-06-28T23:59:59.000Z

    Final Technical Report for the Recovery Act Project for the Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility. The Abiquiu hydroelectric facility existed with two each 6.9 MW vertical flow Francis turbine-generators. This project installed a new 3.1 MW horizontal flow low flow turbine-generator. The total plant flow range to capture energy and generate power increased from between 250 and 1,300 cfs to between 75 and 1,550 cfs. Fifty full time equivalent (FTE) construction jobs were created for this project - 50% (or 25 FTE) were credited to ARRA funding due to the ARRA 50% project cost match. The Abiquiu facility has increased capacity, increased efficiency and provides for an improved aquatic environment owing to installed dissolved oxygen capabilities during traditional low flow periods in the Rio Chama. A new powerhouse addition was constructed to house the new turbine-generator equipment.

  19. Asymptotic Equivalence and Adaptive Estimation for Robust Nonparametric Regression

    E-Print Network [OSTI]

    Zhou, Harrison Huibin

    Asymptotic Equivalence and Adaptive Estimation for Robust Nonparametric Regression T. Tony Cai1 and Harrison H. Zhou2 University of Pennsylvania and Yale University Abstract Asymptotic equivalence theory. In this paper we develop asymptotic equivalence results for robust nonparametric regression with unbounded loss

  20. Borel equivalence relations and everywhere faithful actions of free products

    E-Print Network [OSTI]

    Miller, Benjamin

    Borel equivalence relations and everywhere faithful actions of free products Benjamin D. Miller July 13, 2006 Abstract We study the circumstances under which an aperiodic countable Borel equivalence equivalence class. An action of a group G on a set X is faithful if g G x X (g · x = x). The orbits of a G

  1. Weak Order Equivalence for Logic Programs with Preferences

    E-Print Network [OSTI]

    Schaub, Torsten

    Weak Order Equivalence for Logic Programs with Preferences Kathrin Konczak Institut f¨ur Informatik, notions of equivalence for Answer Set Programming have been stud- ied intensively and were shown to be beneficial for modular programming and automated optimization. In [9], the novel notion of strong equivalence

  2. Checking NFA equivalence with bisimulations up to congruence

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Checking NFA equivalence with bisimulations up to congruence Filippo Bonchi CNRS, ENS Lyon--We introduce bisimulation up to congruence as a technique for proving language equivalence of non algorithm. I. INTRODUCTION Checking language equivalence of finite automata is a clas- sical problem

  3. Isomorphism of subshifts is a universal countable Borel equivalence relation

    E-Print Network [OSTI]

    Clemens, John D.

    Isomorphism of subshifts is a universal countable Borel equivalence relation John D. Clemens July 17, 2007 Abstract We use the theory of Borel equivalence relations to analyze the equiva- lence relation of isomorphism among one-dimensional subshifts. We show that this equivalence relation

  4. Checking NFA equivalence with bisimulations up to congruence

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Checking NFA equivalence with bisimulations up to congruence Filippo Bonchi Damien Pous CNRS, ENS introduce bisimulation up to congruence as a technique for proving language equivalence of non Language Equivalence, Automata, Bisimulation, Coin- duction, Up-to techniques, Congruence, Antichains. 1

  5. Reducing Equational Theories for the Decision of Static Equivalence #

    E-Print Network [OSTI]

    Treinen, Ralf - Laboratoire Preuves, Programmes et Systèmes, Université Paris 7

    Reducing Equational Theories for the Decision of Static Equivalence # Steve Kremer 1 , Antoine, CNRS, France Abstract. Static equivalence is a well established notion of indistin­ guishability of sequences of terms which is useful in the symbolic analysis of cryptographic protocols. Static equivalence

  6. A Language-Independent Proof System for Mutual Program Equivalence

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Language-Independent Proof System for Mutual Program Equivalence S¸tefan Ciob^aca1 , Dorel Lucanu, France 3 University of Illinois at Urbana-Champaign, USA Abstract. Two programs are mutually equivalent if they both diverge or they end up in similar states. Mutual equivalence is an adequate no- tion

  7. Regular Equivalence and Dynamic Logic Maarten Marx and Michael Masuch

    E-Print Network [OSTI]

    Amsterdam, University of

    Regular Equivalence and Dynamic Logic Maarten Marx #3; and Michael Masuch Institure for Logic equivalence relation on a social network. That is, a formal language of position terms is de#12;ned with the property that on #12;nite networks, two actors are regularly equivalent if and only if they cannot

  8. ccsd00003913, ZETA FUNCTIONS AND BLOW-NASH EQUIVALENCE

    E-Print Network [OSTI]

    ccsd­00003913, version 1 ­ 17 Jan 2005 ZETA FUNCTIONS AND BLOW-NASH EQUIVALENCE GOULWEN FICHOU Abstract. We propose a re#12;nement of the notion of blow-Nash equivalence between Nash function germs, which has been introduced in [2] as an analog in the Nash setting of the blow-analytic equivalence de#12

  9. ASYMPTOTIC EQUIVALENCE FOR INHOMOGENEOUS JUMP DIFFUSION PROCESSES AND WHITE NOISE.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ASYMPTOTIC EQUIVALENCE FOR INHOMOGENEOUS JUMP DIFFUSION PROCESSES AND WHITE NOISE. ESTER MARIUCCI Laboratoire Jean Kuntzmann, Grenoble. Abstract. We prove the global asymptotic equivalence between the experi. These asymptotic equivalences are established by constructing explicit Markov kernels that can be used to reproduce

  10. On the Equivalence of Distributed Systems with Queries and Communication$

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On the Equivalence of Distributed Systems with Queries and Communication$ Serge Abiteboula , Balder a common goal, such as eval- uating some query. We study the equivalence of such systems. We model for performing tasks such as sending, receiving and querying data. As our model is quite general, the equivalence

  11. Mining Complex Boolean Expressions for Sequential Equivalence Checking

    E-Print Network [OSTI]

    Ramakrishnan, Naren

    Mining Complex Boolean Expressions for Sequential Equivalence Checking Neha Goel, Michael S. Hsiao-flops in a sequential circuit for sequential equivalence checking. In contrast to traditional learning methods, our be arbitrary boolean expressions and can thus prune a large don't care space during equivalence checking

  12. Stutter Equivalence for In nite State Systems Zhendong Su

    E-Print Network [OSTI]

    Su, Zhendong

    Stutter Equivalence for In#12;nite State Systems Zhendong Su EECS Department, University of California, Berkeley zhendong@cs.berkeley.edu Abstract. In this paper, we study the state equivalences closure of bisimilarity is a full abstract semantics for STL AU . Next, we suggest a new state equivalence

  13. Equivalence Relations Definition of a relation on a set

    E-Print Network [OSTI]

    Singman, David

    Equivalence Relations Definition of a relation on a set Let A be any set. Any subset have 1R1, 2R3, 3R1, 2 R2, 3 R2, etc. #12;A special kind of relation- an Equivalence relation There is a type of relation, it's known as an equivalence relation, which is particularly useful. Definition

  14. On the Equivalence of Distributed Systems with Queries and Communication

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On the Equivalence of Distributed Systems with Queries and Communication Serge Abiteboul INRIA, such as evaluate some query. We study the equivalence of such systems. We model a dis- tributed system such as sending, receiving and querying data. As our model is quite general, the equivalence problem turns out

  15. On the Complexity of the Equivalence Problem for Probabilistic Automata

    E-Print Network [OSTI]

    Ouaknine, Joël

    On the Complexity of the Equivalence Problem for Probabilistic Automata Stefan Kiefer1 , Andrzej S equivalence of probabilistic automata is a key prob- lem for establishing various behavioural and anonymity properties of probabilistic systems. In recent experiments a randomised equivalence test based on polynomial

  16. Complexity of Equivalence Problems for Concurrent Systems of Finite Agents

    E-Print Network [OSTI]

    Rabinovich, Alexander

    Complexity of Equivalence Problems for Concurrent Systems of Finite Agents Alexander Rabinovich@math.tau.ac.il 1 #12; Running head: Equivalence of Concurrent Systems Mailing address: Alexander Rabinovich that one wants to check whether p ¸ q for one of the commonly used equivalence ¸. We show that this ques

  17. The equivalence principle in classical mechanics and quantum mechanics

    E-Print Network [OSTI]

    Philip D. Mannheim

    2000-04-03T23:59:59.000Z

    We discuss our understanding of the equivalence principle in both classical mechanics and quantum mechanics. We show that not only does the equivalence principle hold for the trajectories of quantum particles in a background gravitational field, but also that it is only because of this that the equivalence principle is even to be expected to hold for classical particles at all.

  18. Spectral equivalences from Bethe Ansatz equations

    E-Print Network [OSTI]

    Dorey, P; Tateo, R; Dorey, Patrick; Dunning, Clare; Tateo, Roberto

    2001-01-01T23:59:59.000Z

    The one-dimensional Schr\\"odinger equation for the potential $x^6+\\alpha x^2 +l(l+1)/x^2$ has many interesting properties. For certain values of the parameters l and alpha the equation is in turn supersymmetric (Witten), quasi-exactly solvable (Turbiner), and it also appears in Lipatov's approach to high energy QCD. In this paper we signal some further curious features of these theories, namely novel spectral equivalences with particular second- and third-order differential equations. These relationships are obtained via a recently-observed connection between the theories of ordinary differential equations and integrable models. Generalised supersymmetry transformations acting at the quasi-exactly solvable points are also pointed out, and an efficient numerical procedure for the study of these and related problems is described. Finally we generalise slightly and then prove a conjecture due to Bessis, Zinn-Justin, Bender and Boettcher, concerning the reality of the spectra of certain PT-symmetric quantum-mecha...

  19. Orbit Equivalence and Von Neumann Rigidity for Actions of Wreath Product Groups

    E-Print Network [OSTI]

    Sizemore, James Owen

    2012-01-01T23:59:59.000Z

    B. Weiss. “An amenable equivalence relation is gen- eratedFur99] Alex Furman. “Orbit equivalence rigidity. ” Ann. ofand Yehuda Shalom. “Orbit equivalence rigidity and bounded

  20. [Semantic equivalence of the Brazilian Portuguese version of the "Body Change Inventory"].

    E-Print Network [OSTI]

    Conti, MA; Ferreira, ME; Amaral, AC; Hearst, N; Cordás, TA; Scagliusi, FB

    2012-01-01T23:59:59.000Z

    Inventory” Semantic Equivalence of the Brazilian Portugueseuation for semantic equivalence of the BCI in the Portuguese3) evaluation of semantic equivalence; and (4) assessment of

  1. Applying modality and equivalence concepts to pattern finding in social process-produced data

    E-Print Network [OSTI]

    Hanneman, Robert A.; Shelton, Christian R.

    2011-01-01T23:59:59.000Z

    on generalized concepts of equivalence. J Math Sociol 19(1):53 Everett MG (1994) Regular equivalence: general theory. JHC (1971) Structural equivalence of individuals in social

  2. A reassessment of equivalence in yield from marine reserves and traditional fisheries management

    E-Print Network [OSTI]

    White, Crow; Kendall, Bruce E.

    2007-01-01T23:59:59.000Z

    and Botsford, L. W. 1999. Equivalence in yield from marineJune 2007 A reassessment of equivalence in yield from marineidentical model generates equivalence in yield between the

  3. acids biologically equivalent: Topics by E-print Network

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

    on Complexity of Computer Computations, IBM Thomas J. Watson Research Center, Yorktown Heights, New York, on March 22, 1972. The equivalence problem is to determine the ......

  4. Optimization Online - On the equivalence of the method of conjugate ...

    E-Print Network [OSTI]

    Anders Forsgren

    2015-03-09T23:59:59.000Z

    Mar 9, 2015 ... Abstract: In this paper we state necessary and sufficient conditions for equivalence of the method of conjugate gradients and quasi-Newton ...

  5. Equivalent circuit modeling of hybrid electric vehicle drive train

    E-Print Network [OSTI]

    Routex, Jean-Yves

    2001-01-01T23:59:59.000Z

    . . . . Figure 3. 4. 6: The motor shaft at no load. Figure 3. 4. 7: Bond graph for the motor shaft. . . Figure 3. 4. 8: Equivalent circuit of the motor shaft. Figure 3. 5. 1: Concrete example: the elevator Figure 3. 5. 2: Electro-mechanical model... model of the elevator. Figure 3. 5. 8: Final equivalent circuit of the elevator. Figure 4. 1. 1: Mechanical model of a shaft. Figure 4. 1. 2: Equivalent circuit of the shaft. Figure 4. 1. 3: Mechanical model of a gearbox. Figure 4. 1. 4: Equivalent...

  6. Stability of the Gauge Equivalent Classes in Inverse Stationary ...

    E-Print Network [OSTI]

    2011-06-28T23:59:59.000Z

    mines the gauge equivalent class of the attenuation and scattering coefficients. ...... [18] M. Mokhtar-Kharroubi, Mathematical Topics in Neutron Transport Theory

  7. Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces

    E-Print Network [OSTI]

    Mortensen, Dorthe K.

    2011-01-01T23:59:59.000Z

    problem of determining equivalency for different approaches to ventilationproblem at hand. Although we are often more accustomed to dealing with ventilation

  8. Joule Equivalent of Electrical Energy by Dr. James E. Parks

    E-Print Network [OSTI]

    Tennessee, University of

    Joule Equivalent of Electrical Energy by Dr. James E. Parks Department of Physics and Astronomy 401 The objectives of this experiment are: (1) to understand the equivalence of electrical energy and heat energy, (2) to learn techniques of calorimetry, (3) to learn how to measure electrical energy, and (4) to measure

  9. *can substitute CSE 131 or equivalent and ESE 101 or equivalent Updated June 2013 Mechanical Engineering Sample Curriculum

    E-Print Network [OSTI]

    Subramanian, Venkat

    *can substitute CSE 131 or equivalent and ESE 101 or equivalent Updated June 2013 Mechanical of Thermal Systems MEMS 412 3 Modeling Simulation and Control MEMS 4301 3 Structural Dynamics and Vibration MEMS 431 4 Intro to Circuits ESE 230 4 Engineering Ethics and Sustainability ENGR 4501 1 Engineering

  10. Observable Equivalence between General Relativity and Shape Dynamics

    E-Print Network [OSTI]

    Tim Koslowski

    2012-03-29T23:59:59.000Z

    In this conceptual paper we construct a local version of Shape Dynamics that is equivalent to General Relativity in the sense that the algebras of Dirac observables weakly coincide. This allows us to identify Shape Dynamics observables with General Relativity observables, whose observables can now be interpreted as particular representative functions of observables of a conformal theory at fixed York time. An application of the observable equivalence of General Relativity and Shape Dynamics is to define the quantization of General Relativity through quantizing Shape Dynamics and using observable equivalence. We investigate this proposal explicitly for gravity in 2+1 dimensions.

  11. Violation of the Weak Equivalence Principle in Bekenstein's theory

    E-Print Network [OSTI]

    L. Kraiselburd; H. Vucetich

    2009-02-24T23:59:59.000Z

    Bekenstein has shown that violation of Weak Equivalence Principle is strongly supressed in his model of charge variation. In this paper, it is shown that nuclear magnetic energy is large enough to produce observable effects in Eotvos experiments.

  12. Equivalence of the Husain and the Pleba?ski equations

    E-Print Network [OSTI]

    M. Jakimowicz; J. Tafel

    2006-03-31T23:59:59.000Z

    We show that Husain's reduction of the self-dual Einstein equations is equivalent to the Pleba\\'nski equation. The B\\"acklund transformation between these equations is found. Contact symmetries of the Husain equation are derived.

  13. Design, construction and implementation of spherical tissue equivalent proportional counter

    E-Print Network [OSTI]

    Perez Nunez, Delia Josefina

    2009-05-15T23:59:59.000Z

    Tissue equivalent proportional counters (TEPC) are used for medical and space activities whenever a combination of high and low LET (lineal energy transfer) radiations are present. With the frequency and duration of space activities increasing...

  14. On equivalence of thinning fluids used for hydraulic fracturing

    E-Print Network [OSTI]

    Linkov, Alexander

    2012-01-01T23:59:59.000Z

    The paper aims to answer the question: if and how non-Newtonian fluids may be compared in their mechanical action when used for hydraulic fracturing? By employing the modified formulation of the PKN problem we obtain its simple analytical solutions in the cases of perfectly plastic and Newtonian fluids. Since the results for shear thinning fluids are intermediate between those for these cases, the obtained equation for the fracture length suggests a criterion of the equivalence of various shear thinning fluids for the problem of hydraulic fractures. We assume fluids equivalent in their hydrofracturing action, when at a reference time they produce fractures of the same length. The equation for the fracture length translates the equivalence in terms of the hydraulic fracture length and treatment time into the equivalence in terms of the properties of a fracturing fluid (behavior and consistency indices). Analysis shows that the influence of the consistency and behavior indices on the fracture length, particle v...

  15. Development of design tool for statically equivalent deepwater mooring systems

    E-Print Network [OSTI]

    Udoh, Ikpoto Enefiok

    2009-05-15T23:59:59.000Z

    tests is the depth and spatial limitations in wave basins. It is therefore important to design and build equivalent mooring systems to ensure that the static properties (global restoring forces and global stiffness) of the prototype floater are matched...

  16. I. Introduction Equivalent loading of induction machines are

    E-Print Network [OSTI]

    Szabados, Barna

    described, the rotor is used as an energy storing device, equivalent to a flywheel. The energy stored depends upon speed and moment of inertia of the machine. The speed response capacity of this "flywheel

  17. Influence of Gravitation on Mass-Energy Equivalence Relation

    E-Print Network [OSTI]

    R. V. R. Pandya

    2005-07-01T23:59:59.000Z

    We study influence of gravitational field on the mass-energy equivalence relation by incorporating gravitation in the physical situation considered by Einstein (Ann. Physik, 17, 1905, English translation in ref. [1]) for his first derivation of mass-energy equivalence. In doing so, we also refine Einstein's expression (Ann. Physik, 35, 1911, English translation in ref. [3]) for increase in gravitational mass of the body when it absorbs E amount of radiation energy.

  18. Full-Time Tenure-Track/ Tenured Professors

    E-Print Network [OSTI]

    , such as solar cells, fuel cells, drug delivery, biosensors, polymer science, composites, nanotechnology Giuseppe Palmese Polymers and composites from renewable sources Kenneth Lau Polymer electrolytes Semiconducting and conducting polymers Polymer-based solar cells #12;Cameron Abrams Multiscale molecular

  19. Over90graduatestudents(>70full-time PhDstudents)

    E-Print Network [OSTI]

    Alpay, S. Pamir

    (Pratt&Whitney,Sikorsky,Otis, HamiltonSunstrand,UTCPower),ElectricBoat (adivisionofGeneralDynamics),Praxair, General

  20. A 12-month, full-time Program Begining in January

    E-Print Network [OSTI]

    Abolmaesumi, Purang

    global advocacy initiatives for responsible leadership, in partnership with the United Nations Global Compact. Thought Leadership Queen's School of Business has an impressive record of cutting edge research

  1. Recommendations for Faculty Assembly Subcommittee on Full Time NTS Faculty

    E-Print Network [OSTI]

    Jiang, Huiqiang

    outlined in the Faculty Handbook [http://www.provost.pitt.edu/info/FacultyHandbook.pdf]. Duties should-tenure stream faculty may be involved in these evaluations for other non-tenure steam faculty. a) For general information about annual review of all faculty [including non-tenure steam faculty] see http

  2. Equivalent Neutrinos, Light WIMPs, and the Chimera of Dark Radiation

    E-Print Network [OSTI]

    Gary Steigman

    2013-03-18T23:59:59.000Z

    According to conventional wisdom, in the standard model (SM) of particle physics and cosmology the effective number of neutrinos is Neff=3 (more precisely, 3.046). In extensions of the standard model allowing for the presence of DeltaNnu equivalent neutrinos (or dark radiation), Neff is generally >3. The canonical results are reconsidered here, revealing that a measurement of Neff>3 can be consistent with DeltaNnu=0 (dark radiation without dark radiation). Conversely, a measurement consistent with Neff=3 is not inconsistent with the presence of dark radiation (DeltaNnu>0). In particular, if there is a light WIMP that annihilates to photons after the SM neutrinos have decoupled, the photons are heated beyond their usual heating from e+- annihilation, reducing the late time ratio of neutrino and photon temperatures (and number densities), leading to Neff3 even in the absence of equivalent neutrinos or dark radiation. A measurement of Neff>3 is thus no guarantee of the presence of equivalent neutrinos or dark radiation. In the presence of light WIMPs and/or equivalent neutrinos there are degeneracies among the light WIMP mass and its nature (fermion or boson, as well as its couplings to neutrinos or photons), the number and nature (fermion or boson) of the equivalent neutrinos, and their decoupling temperature (the strength of their interactions with the SM particles). There's more to a measurement of Neff than meets the eye.

  3. Knowledge of Mathematical Equivalence in Children with Specific Language Impairment: Evidence from Gesture and Speech

    E-Print Network [OSTI]

    Knowledge of Mathematical Equivalence in Children with Specific Language Impairment: Evidence from investigated understanding of mathematical equivalence in children with Specific Language Impairment (SLI and mathematical equivalence problems. Problem solutions and explanations were coded for accuracy and problem

  4. Equivalence of Conventionally-Derived and Parthenote-Derived Human Embryonic Stem Cells

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    Equivalence of Conventionally-Derived and Parthenote-6 | Issue 1 | e14499 Equivalence of hESC and phESC Figure 4.to determine points of equivalence and differences between

  5. Containment, Equivalence and Coreness from CSP to QCSP and beyond

    E-Print Network [OSTI]

    Madelaine, Florent

    2012-01-01T23:59:59.000Z

    The constraint satisfaction problem (CSP) and its quantified extensions, whether without (QCSP) or with disjunction (QCSP_or), correspond naturally to the model checking problem for three increasingly stronger fragments of positive first-order logic. Their complexity is often studied when parameterised by a fixed model, the so-called template. It is a natural question to ask when two templates are equivalent, or more generally when one "contain" another, in the sense that a satisfied instance of the first will be necessarily satisfied in the second. One can also ask for a smallest possible equivalent template: this is known as the core for CSP. We recall and extend previous results on containment, equivalence and "coreness" for QCSP_or before initiating a preliminary study of cores for QCSP which we characterise for certain structures and which turns out to be more elusive.

  6. Mesoscale symmetries explain dynamical equivalence of food webs

    E-Print Network [OSTI]

    Aufderheide, Helge; Gross, Thilo

    2012-01-01T23:59:59.000Z

    A present challenge in complex systems is to identify mesoscale structures that have distinct dynamical implications. In this paper we present a detailed investigation of a previously observed dynamical equivalence of certian ecological food webs. We show that this equivalence is rooted in mesoscale symmetries that exist in these webs. Certain eigenvectors of the Jacobian describing dynamical modes of the system, such as specific instabilities or responses to perturbations, localize on these symmetric motifs. On the one hand this means that by removing a symmetry from the network one obtains a system which has identical dynamics except for the removal of the localized mode. This explains the previously observed equivalence. On the other hand it means that we can identify dynamical modes that only depend on the symmetric motif. Symmetric structures thus provide an example for mesoscale network motifs having distinct and exact implications for the dynamics.

  7. On the Equivalence of Nonnegative Matrix Factorization and K-means - Spectral Clustering

    E-Print Network [OSTI]

    Ding, Chris; He, Xiaofeng; Simon, Horst D.; Jin, Rong

    2008-01-01T23:59:59.000Z

    He, and H.D. Simon. On the equivalence of nonnegative matrixOn the Equivalence of Nonnegative Matrix Factorization and

  8. The Equivalence Principle and the Constants of Nature

    E-Print Network [OSTI]

    Thibault Damour

    2009-06-17T23:59:59.000Z

    We briefly review the various contexts within which one might address the issue of ``why'' the dimensionless constants of Nature have the particular values that they are observed to have. Both the general historical trend, in physics, of replacing a-priori-given, absolute structures by dynamical entities, and anthropic considerations, suggest that coupling ``constants'' have a dynamical nature. This hints at the existence of observable violations of the Equivalence Principle at some level, and motivates the need for improved tests of the Equivalence Principle.

  9. Equivalent radii of antennas with noncircular cross section

    E-Print Network [OSTI]

    Su, Charles Wen-Hsun

    1960-01-01T23:59:59.000Z

    . INTRODUCTION 1-1. Equivalent Radius 1-2. Length~thickness Parameter Ii. ELLIP TICAL CONDUCTOR 2-1. Capacitance of Coaxial Cylinder's Z-Z. Inverse Cosine Transformation 12 Z-3. Equivalent Radius of Elliptical Conductor Z-4. Special Cases 17 III... 74 ? -shaped Antenna 29 3-8. Rectangular Conductor . . . 31 3-9. Percentage Error . . . . . ~. . . , 33 CONTENTS CONTIN UED CHAPTER Page IV. PARALLEL CONDUCTORS 4-1. Two Circular Cylinders in Parallel 4-Z. Two Flat Strips in Parallel 4-3. Two...

  10. Equivalent roughness height for plane bed under oscillatory flow

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , the bed roughness height of a flat and fixed bed is given in terms of the Nikuradse roughness height (ks may be several orders of magnitude larger than for a fixed bed. This is probably causedEquivalent roughness height for plane bed under oscillatory flow Beno^it Camenen , Magnus Larson

  11. Equivalent Roughness Height for Plane Bed under Steady Flow

    E-Print Network [OSTI]

    US Army Corps of Engineers

    current conditions. In general, owing to dimensional reasons, the bed roughness height of a flat and fixed orders of magnitude larger than for a fixed bed. This is probably caused by the increased energyEquivalent Roughness Height for Plane Bed under Steady Flow Benoît Camenen, Ph.D.1 ; Atilla Bayram

  12. New Blind Signatures Equivalent to Factorization (Extended Abstract)

    E-Print Network [OSTI]

    Pointcheval, David

    New Blind Signatures Equivalent to Factorization (Extended Abstract) David Pointcheval Jacques Stern Abstract In this paper, we present new blind signature schemes based on the factorization problem. They are the first blind sig- nature schemes proved secure relatively to factorization. By security, we mean

  13. Nordstrom's scalar theory of gravity and the equivalence principle

    E-Print Network [OSTI]

    Nathalie Deruelle

    2011-04-24T23:59:59.000Z

    Nordstrom's theory of gravity, which describes gravity by a scalar field in flat spacetime, is observationally ruled out. It is however the only theory of gravity with General Relativity to obey the strong equivalence principle. I show in this paper that this remarkable property is true beyond post-newtonian level and can be related to the existence of a 'Nordstrom-Katz' superpotential.

  14. The Equivalence Principle as a Probe for Higher Dimensions

    E-Print Network [OSTI]

    Paul S. Wesson

    2006-01-17T23:59:59.000Z

    Higher-dimensional theories of the kind which may unify gravitation with particle physics can lead to significant modifications of general relativity. In five dimensions, the vacuum becomes non-standard, and the Weak Equivalence Principle becomes a geometrical symmetry which can be broken, perhaps at a level detectable by new tests in space.

  15. On the Equivalence of Constraint Satisfaction Francesca Rossi1

    E-Print Network [OSTI]

    their information content is essentially identical. In other words, it is only the information content of a CSP was visiting MCC. #12;Abstract A solution of a Constraint Satisfaction Problem (CSP) is an assignment of values notion of equivalence. Two di erent algorithms, currently used for transforming any non-binary CSP

  16. CONFIDENTIAL: DO NOT QUOTE 1 Equivalence in Ventilation and

    E-Print Network [OSTI]

    CONFIDENTIAL: DO NOT QUOTE 1 Equivalence in Ventilation and Indoor Air Quality M. H. Sherman, I ventilate buildings to provide acceptable indoor air quality (IAQ). Ventilation standards (such as American Society of Heating, Refrigerating, and Air-Conditioning Enginners [ASHRAE] Standard 62) specify minimum

  17. Control of Nondeterministic Discrete Event Systems for Bisimulation Equivalence

    E-Print Network [OSTI]

    Kumar, Ratnesh

    a certain finite state space, namely the power set of Cartesian product of system and specification state.jiang@gm.com). Nondeterminism in plant model can arise from unmodeled dynamics or abstraction. A nondeterministic plant can have], ready-trace [4], simulation and bisimulation equivalences [29]. Also, the supervisors can

  18. Equivalence Checking for Function Pipelining in Behavioral Synthesis

    E-Print Network [OSTI]

    Xie, Fei

    on subtle design invariants. Function pipelining (a.k.a. system-level pipelining) is an important, correct-by-construction abstraction of function pipeline; thus, instead of developing pipelineEquivalence Checking for Function Pipelining in Behavioral Synthesis Kecheng Hao, Sandip Ray

  19. Cultural evolution is not equivalent to Darwinian evolution

    E-Print Network [OSTI]

    Reader, Simon

    Cultural evolution is not equivalent to Darwinian evolution Dwight W. Read Department://www.sscnet.ucla.edu/anthro/faculty/read/ Abstract: Darwinian evolution, defined as evolution arising from selection based directly on the properties. The difficulty with linking Darwinian evolution to structural properties of cultural constructs is exemplified

  20. A Theory of Operational Equivalence for Interaction Nets

    E-Print Network [OSTI]

    Fernández, Maribel

    A Theory of Operational Equivalence for Interaction Nets Maribel Fernâ??andez 1 and Ian Mackie 2 1. In this paper we apply these (now standard) techniques to interactions nets, a graphical programming language in interaction nets since it can be applied to untyped systems, thus all systems of interaction nets are captured

  1. 11 Kalman Filtering and Certainty Equivalence We presents the important concepts of the Kalman filter, certainty-equivalence and the

    E-Print Network [OSTI]

    Weber, Richard

    11 Kalman Filtering and Certainty Equivalence We presents the important concepts of the Kalman. In the Gaussian case, it is also the maximum likelihood estimator. 11.2 The Kalman filter Let us make the LQG for these two quantities. Theorem 11.2 (The Kalman filter) Suppose that conditional on W0, the initial state x0

  2. Virtual Laboratories > 1. Foundations > 1 2 3 4 5 6 7 8 9 5. Equivalence Relations

    E-Print Network [OSTI]

    Demeio, Lucio

    Virtual Laboratories > 1. Foundations > 1 2 3 4 5 6 7 8 9 5. Equivalence Relations A relation on a nonempty set S that is reflexive, symmetric, and transitive is said to be an equivalence relation on S. As the name and notation suggest, an equivalence relation is intended to define a type of equivalence among

  3. LARGE DEVIATIONS AND THE THERMODYNAMIC FORMALISM: A NEW PROOF OF THE EQUIVALENCE OF ENSEMBLES a

    E-Print Network [OSTI]

    LARGE DEVIATIONS AND THE THERMODYNAMIC FORMALISM: A NEW PROOF OF THE EQUIVALENCE OF ENSEMBLES a J The Equivalence of Ensembles In statistical mechanics the problem of the equivalence of ensembles goes back, the microcanonical measures and the grand canonical measures are equivalent; making precise the meaning

  4. Orbit equivalence of Cantor minimal systems: A survey and a new proof

    E-Print Network [OSTI]

    Putnam, Ian F.

    Orbit equivalence of Cantor minimal systems: A survey and a new proof Ian F. Putnam, Department Abstract We give a new proof of the classification, up to topological orbit equivalence, of minimal AF-equivalence on the structure of AF-equivalence relations and the theory of dimension groups; we give a short survey

  5. Full sequential equivalence checking by state space traversal has been shown to be unpractical for large

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Abstract: Full sequential equivalence checking by state space traversal has been shown, Simulation, SAT) to transform the sequential equivalence checking problem into a combinational equivalence successful in general, they are not able to reach proof of equivalence in presence of complex transformations

  6. ON ALMOST BLOW-ANALYTIC EQUIVALENCE GOULWEN FICHOU AND MASAHIRO SHIOTA

    E-Print Network [OSTI]

    Boyer, Edmond

    ON ALMOST BLOW-ANALYTIC EQUIVALENCE GOULWEN FICHOU AND MASAHIRO SHIOTA Abstract. We study the analytic equivalence of real analytic function germs after desin- gularization and state the cardinality of the classes under this equivalence relation. We consider also the Nash case, and compare these equivalences

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

    E-Print Network [OSTI]

    Pansu, Pierre

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

  8. ccsd-00004260,version1-15Feb2005 Galois coverings, Morita equivalence and smash

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ccsd-00004260,version1-15Feb2005 Galois coverings, Morita equivalence and smash extensions to Morita equivalence of k-categories. For this purpose we describe processes providing Morita equivalences that there is a coincidence up to Morita equivalence between Galois coverings of k-categories and smash extensions

  9. Equivalence problem for the orthogonal webs on the sphere

    E-Print Network [OSTI]

    Caroline Cochran; Raymond G. McLenaghan; Roman G. Smirnov

    2010-09-22T23:59:59.000Z

    We solve the equivalence problem for the orthogonally separable webs on the three-sphere under the action of the isometry group. This continues a classical project initiated by Olevsky in which he solved the corresponding canonical forms problem. The solution to the equivalence problem together with the results by Olevsky forms a complete solution to the problem of orthogonal separation of variables to the Hamilton-Jacobi equation defined on the three-sphere via orthogonal separation of variables. It is based on invariant properties of the characteristic Killing two-tensors in addition to properties of the corresponding algebraic curvature tensor and the associated Ricci tensor. The result is illustrated by a non-trivial application to a natural Hamiltonian defined on the three-sphere.

  10. Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces

    SciTech Connect (OSTI)

    Lawrence Berkeley National Laboratory; Technical University of Denmark, Department of Civil Engineering; Mortensen, Dorthe K.; Walker, Iain S.; Sherman, Max H.

    2010-12-15T23:59:59.000Z

    This article uses an analytical approach to determine the dilution of an unsteadily-generated solute in an unsteady solvent stream, under cyclic temporal boundary conditions. The goal is to find a simplified way of showing equivalence of such a process to a reference case where equivalent dilution is defined as a weighted average concentration. This derivation has direct applications to the ventilation of indoor spaces where indoor air quality and energy consumption cannot in general be simultaneously optimized. By solving the equation we can specify how much air we need to use in one ventilation pattern compared to another to obtain same indoor air quality. Because energy consumption is related to the amount of air exchanged by a ventilation system, the equation can be used as a first step to evaluate different ventilation patterns effect on the energy consumption. The use of the derived equation is demonstrated by representative cases of interest in both residential and non-residential buildings.

  11. Torsion-balance tests of the weak equivalence principle

    E-Print Network [OSTI]

    T. A. Wagner; S. Schlamminger; J. H. Gundlach; E. G. Adelberger

    2012-07-10T23:59:59.000Z

    We briefly summarize motivations for testing the weak equivalence principle and then review recent torsion-balance results that compare the differential accelerations of beryllium-aluminum and beryllium-titanium test body pairs with precisions at the part in $10^{13}$ level. We discuss some implications of these results for the gravitational properties of antimatter and dark matter, and speculate about the prospects for further improvements in experimental sensitivity.

  12. MOSFETMOSFET ffTT MOSFET small-signal equivalent circuits

    E-Print Network [OSTI]

    Pulfrey, David L.

    --parametersparameters 1. fT is related to the short-circuit current gain 2. |id/ig|2 = |y23/y33|2 3. Extrapolated f to one using z-parameters 2. It's now easy to add in the parasitic R's 3. fT is related to the short-circuit1 MOSFETMOSFET ffTT LECTURE 17 · MOSFET small-signal equivalent circuits · 2-port parameters · y

  13. Equivalence of topological and scattering approaches to quantum pumping

    E-Print Network [OSTI]

    G. Braeunlich; G. M. Graf; G. Ortelli

    2009-09-19T23:59:59.000Z

    The Schroedinger equation with a potential periodically varying in time is used to model adiabatic quantum pumps. The systems considered may be either infinitely extended and gapped or finite and connected to gapless leads. Correspondingly, two descriptions of the transported charge, one relating to a Chern number and the other to a scattering matrix, have been available for some time. Here we generalize the first one and establish its equivalence to the second.

  14. Equivalent Neutrinos, Light WIMPs, and the Chimera of Dark Radiation

    E-Print Network [OSTI]

    Steigman, Gary

    2013-01-01T23:59:59.000Z

    According to conventional wisdom, in the standard model (SM) of particle physics and cosmology the effective number of neutrinos is Neff=3 (more precisely, 3.046). In extensions of the standard model allowing for the presence of DeltaNnu equivalent neutrinos (or dark radiation), Neff is generally >3. The canonical results are reconsidered here, revealing that a measurement of Neff>3 can be consistent with DeltaNnu=0 (dark radiation without dark radiation). Conversely, a measurement consistent with Neff=3 is not inconsistent with the presence of dark radiation (DeltaNnu>0). In particular, if there is a light WIMP that annihilates to photons after the SM neutrinos have decoupled, the photons are heated beyond their usual heating from e+- annihilation, reducing the late time ratio of neutrino and photon temperatures (and number densities), leading to Neff3 even in the absence of equivalent neutrinos or dark radiation. A measurement of Neff>3 is thus no guarantee of the presence of equivalent neutrinos or dark ra...

  15. Composite system in noncommutative space and the equivalence principle

    E-Print Network [OSTI]

    Kh. P. Gnatenko

    2014-05-05T23:59:59.000Z

    The motion of a composite system made of N particles is examined in a space with a canonical noncommutative algebra of coordinates. It is found that the coordinates of the center-of-mass position satisfy noncommutative algebra with effective parameter. Therefore, the upper bound of the parameter of noncommutativity is re-examined. We conclude that the weak equivalence principle is violated in the case of a non-uniform gravitational field and propose the condition for the recovery of this principle in noncommutative space. Furthermore, the same condition is derived from the independence of kinetic energy on the composition.

  16. Equivalence principle and experimental tests of gravitational spin effects

    E-Print Network [OSTI]

    A. J. Silenko; O. V. Teryaev

    2007-09-27T23:59:59.000Z

    We study the possibility of experimental testing the manifestations of equivalence principle in spin-gravity interactions. We reconsider the earlier experimental data and get the first experimental bound on anomalous gravitomagnetic moment. The spin coupling to the Earth's rotation may also be explored at the extensions of neutron EDM and g-2 experiments. The spin coupling to the terrestrial gravity produces a considerable effect which may be discovered at the planned deuteron EDM experiment. The Earth's rotation should also be taken into account in optical experiments on a search for axionlike particles.

  17. The equivalence of inverse Compton scattering and the undulator concept

    SciTech Connect (OSTI)

    Ng, K.Y,; /Fermilab

    2009-08-01T23:59:59.000Z

    Inverse Compton scattering is a method to produce very high frequency photon beam. However, the production mechanism can also be viewed as a undulator emission. This is because the electron sees electric and magnetic fields of the incident laser beam and is driven into transverse oscillatory motion in exactly the same way when the electron passes through a undulator consisting of alternating magnetic field. This note gives a detailed examination of the similarity about the two views. Equivalent undulator parameters are derived for the incident laser beam, as well as the differential cross section of photon emission.

  18. Commutation Relations for Double Tensors of Two Equivalent D Electrons

    E-Print Network [OSTI]

    Chin-Sheng Wu

    2007-07-07T23:59:59.000Z

    We apply the Clebsch-Gordan and Racah coefficients to calculate the double tensors for two equivalent d electrons. We also obtain the commutation relations for these double tensors and choose certain quantum numbers, which produce a subgroup. From the root vectors of the commutation relations, we identify them with Lie algebra B2. Once we have the correct Lie algebra, it is feasible to use the Wigner-Eckart theorem to find matrix elements for transition states among atomic spectra or nuclear shell models.

  19. Equivalent forms of the Bessis-Moussa-Villani conjecture

    E-Print Network [OSTI]

    Elliott H. Lieb; Robert Seiringer

    2004-01-09T23:59:59.000Z

    The BMV conjecture for traces, which states that $Tr exp(A -\\lambda B)$ is the Laplace transform of a positive measure, is shown to be equivalent to two other statements: (i) The polynomial $\\lambda\\mapsto Tr(A+\\lambda B)^p$ has only non-negative coefficients for all $A, B \\geq 0$, $p\\in N$ and (ii) $\\lambda\\mapsto \\Tr (A+\\lambda B)^{-p}$ is the Laplace transform of a positive measure for $A, B \\geq 0$, $p>0$.

  20. On the equivalence theorem in f(R)-type generalized gravity

    E-Print Network [OSTI]

    Y. Ezawa; H. Iwasaki; Y. Ohkuwa; S. Watanabe; N. Yamada; T. Yano

    2009-03-26T23:59:59.000Z

    We investigate whether the equivalence theorem in f(R)-type gravity is valid also in quantum theory. It is shown that, if the canonical quantization is assumed, equivalence does not hold in quantum theory.

  1. A Common View on Strong, Uniform, and Other Notions of Equivalence in Answer-Set Programming

    E-Print Network [OSTI]

    Woltran, Stefan

    2007-01-01T23:59:59.000Z

    Logic programming under the answer-set semantics nowadays deals with numerous different notions of program equivalence. This is due to the fact that equivalence for substitution (known as strong equivalence) and ordinary equivalence are different concepts. The former holds, given programs P and Q, iff P can be faithfully replaced by Q within any context R, while the latter holds iff P and Q provide the same output, that is, they have the same answer sets. Notions in between strong and ordinary equivalence have been introduced as theoretical tools to compare incomplete programs and are defined by either restricting the syntactic structure of the considered context programs R or by bounding the set A of atoms allowed to occur in R (relativized equivalence).For the latter approach, different A yield properly different equivalence notions, in general. For the former approach, however, it turned out that any ``reasonable'' syntactic restriction to R coincides with either ordinary, strong, or uniform equivalence. I...

  2. Lunar Laser Ranging Tests of the Equivalence Principle

    E-Print Network [OSTI]

    James G. Williams; Slava G. Turyshev; Dale Boggs

    2012-03-09T23:59:59.000Z

    The Lunar Laser Ranging (LLR) experiment provides precise observations of the lunar orbit that contribute to a wide range of science investigations. In particular, time series of highly accurate measurements of the distance between the Earth and Moon provide unique information that determine whether, in accordance with the Equivalence Principle (EP), both of these celestial bodies are falling towards the Sun at the same rate, despite their different masses, compositions, and gravitational self-energies. Analyses of precise laser ranges to the Moon continue to provide increasingly stringent limits on any violation of the EP. Current LLR solutions give (-0.8 +/- 1.3) x 10^{-13} for any possible inequality in the ratios of the gravitational and inertial masses for the Earth and Moon, (m_G/m_I)_E - (m_G/m_I)_M. Such an accurate result allows other tests of gravitational theories. Focusing on the tests of the EP, we discuss the existing data and data analysis techniques. The robustness of the LLR solutions is demonstrated with several different approaches to solutions. Additional high accuracy ranges and improvements in the LLR data analysis model will further advance the research of relativistic gravity in the solar system, and will continue to provide highly accurate tests of the Equivalence Principle.

  3. Equivalent Continuum Modeling for Shock Wave Propagation in Jointed Media

    SciTech Connect (OSTI)

    Vorobiev, O; Antoun, T

    2009-12-11T23:59:59.000Z

    This study presents discrete and continuum simulations of shock wave propagating through jointed media. The simulations were performed using the Lagrangian hydrocode GEODYN-L with joints treated explicitly using an advanced contact algorithm. They studied both isotropic and anisotropic joint representations. For an isotropically jointed geologic medium, the results show that the properties of the joints can be combined with the properties of the intact rock to develop an equivalent continuum model suitable for analyzing wave propagation through the jointed medium. For an anisotropically jointed geologic medium, they found it difficult to develop an equivalent continuum (EC) model that matches the response derived from mesoscopic simulation. They also performed simulations of wave propagation through jointed media. Two appraoches are suggested for modeling the rock mass. In one approach, jointed are modeled explicitly in a Lagrangian framework with appropriate contact algorithms used to track motion along the interfaces. In the other approach, the effect of joints is taken into account using a constitutive model derived from mesoscopic simulations.

  4. 114 CHAPTER 2. REGULAR LANGUAGES 2.17 Right-Invariant Equivalence Relations on

    E-Print Network [OSTI]

    Gallier, Jean

    114 CHAPTER 2. REGULAR LANGUAGES 2.17 Right-Invariant Equivalence Relations on Let D = (Q, , , q0 an equivalent DFA Dr such that L(D) = L(Dr), where all the states of Dr are reachable. From now on, we assume-INVARIANT EQUIVALENCE RELATIONS ON 115 Recall that an equivalence relation on a set A is a relation which is reflexive

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

    E-Print Network [OSTI]

    Wood-Zika, Annmarie Ruth

    1997-01-01T23:59:59.000Z

    surface fluence spectra 45 LIST OF TABLES TABLE Page Properties of commercially available TLDs . . PNNL dose equivalent averaged quality factors . 16 3 MCNP input deck geometries Phantoms modeled in MCNP input decks . . Comparison of calculated..., PNNL and DOELAP fluence-to-dose equivalent conversion factors for bare '"Cf . . . . 37 Comparison of calculated, PNNL and DOELAP fluence-to-dose equivalent conversion factors for D, O moderated '"Cf. 37 Fluence-to-dose equivalent conversion factors...

  6. State property systems and closure spaces: a study of categorical equivalence

    E-Print Network [OSTI]

    Aerts, Diederik

    State property systems and closure spaces: a study of categorical equivalence Diederik Aerts, Eva system. We prove that the category of state property systems (and morphisms), SP, is equivalent to the category of closure spaces (and continuous maps), Cls. We show the equivalence of the `state determination

  7. Strong and uniform equivalence of nonmonotonic theories --an algebraic Miroslaw Truszczynski

    E-Print Network [OSTI]

    Truszczynski, Miroslaw

    Strong and uniform equivalence of nonmonotonic theories -- an algebraic approach Miroslaw Truszczy We show that the concepts of strong and uniform equivalence of logic programs can be generalized and uniform equivalence for sev- eral nonmonotonic logics including logic programming with aggregates, default

  8. Comment on the equivalence of Bakamjian-Thomas mass operators in different forms of dynamics

    E-Print Network [OSTI]

    Polyzou, Wayne

    Comment on the equivalence of Bakamjian-Thomas mass operators in different forms of dynamics W. N, 2010) We discuss the scattering equivalence of the generalized Bakamjian-Thomas construction of dy- namical representations of the Poincar´e group in all of Dirac's forms of dynamics. The equivalence

  9. The Stable Equivalence and Cancellation Problems Leonid Makar-Limanov Peter van Rossum

    E-Print Network [OSTI]

    Shpilrain, Vladimir

    The Stable Equivalence and Cancellation Problems Leonid Makar-Limanov #3; Peter van Rossum Vladimir are isomorphic. In this paper, we focus on a related problem: given two varieties with equivalent (under an automorphism of A n+1 ) cylinders V 1 #2;A 1 and V 2 #2;A 1 , are V 1 and V 2 equivalent under an automorphism

  10. G-Structures Local Equivalence and Classification of Co-frames

    E-Print Network [OSTI]

    Patrick, George

    Motivation G-Structures Local Equivalence and Classification of Co-frames Solution Summary and Further Results Local Equivalence and Classification of Finite Type G-Structures Ivan Struchiner1 1 and Infinite Dimensional Ivan Struchiner Equivalence of G-Structures #12;Motivation G-Structures Local

  11. Equivalence for nonparametric drift estimation of a diffusion process and its Euler scheme.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Equivalence for nonparametric drift estimation of a diffusion process and its Euler scheme. V equivalence theory of Le Cam (1986) is to approx- imate general statistical models by simple ones. We develop here a global asymptotic equivalence result for nonparametric drift estimation of a discretely observed

  12. Equivalence Principle Violation in Weakly Vainshtein-Screened Systems Alexander V. Belikov1

    E-Print Network [OSTI]

    Hu, Wayne

    Equivalence Principle Violation in Weakly Vainshtein-Screened Systems Alexander V. Belikov1-dependent interactions cause apparent equivalence principle vi- olations. In the weakly-screened regime violations can [17­23]. In these models, all bodies accelerate equivalently in the total field of the fifth force

  13. GAMES AND ELEMENTARY EQUIVALENCE OF II1 FACTORS ISAAC GOLDBRING AND THOMAS SINCLAIR

    E-Print Network [OSTI]

    Goldbring, Isaac

    GAMES AND ELEMENTARY EQUIVALENCE OF II1 FACTORS ISAAC GOLDBRING AND THOMAS SINCLAIR Abstract. We use Ehrenfeucht-Fra¨iss´e games to give a local geometric crite- rion for elementary equivalence of II1 factors. We obtain as a corollary that two II1 factors are elementarily equivalent if and only

  14. Tests of the hydrodynamic equivalence of direct-drive implosions with different D2 and 3

    E-Print Network [OSTI]

    Tests of the hydrodynamic equivalence of direct-drive implosions with different D2 and 3 He, D2 and 3 He gases are fully ionized, and hydrodynamically equivalent fuels with different ratios the materials are cho- sen to be as nearly hydrodynamically equivalent as possible. D and 3 He have the special

  15. Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Equivalence Class Testing

    E-Print Network [OSTI]

    Mousavi, Mohammad

    Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Equivalence Class Testing: Equivalence Class Testing #12;Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Outline Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Mousavi: Equivalence Class Testing #12

  16. Tiling groupoids and Bratteli diagrams II: structure of the orbit equivalence relation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Tiling groupoids and Bratteli diagrams II: structure of the orbit equivalence relation A. Julien, J on the faces of the tiles of all dimensions j = 0, . . . , d - 1. We reconstruct the tiling's equivalence to a natural notion of border for its associated tiling. We define an ´etale equivalence relation RB on B

  17. Strong and uniform equivalence of nonmonotonic theories ---an algebraic Mirosl/aw Truszczy

    E-Print Network [OSTI]

    Truszczynski, Miroslaw

    Strong and uniform equivalence of nonmonotonic theories --- an algebraic approach # Mirosl mirekcs.uky.edu Abstract We show that the concepts of strong and uniform equivalence of logic programs can characterizations of strong and uniform equivalence for sev­ eral nonmonotonic logics including logic programming

  18. ANALYTIC EQUIVALENCE OF NORMAL CROSSING FUNCTIONS ON A REAL ANALYTIC MANIFOLD

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ANALYTIC EQUIVALENCE OF NORMAL CROSSING FUNCTIONS ON A REAL ANALYTIC MANIFOLD Goulwen Fichou crossing singularities after a modification. We focus on the analytic equivalence of such functions with only normal crossing singularities. We prove that for such functions C right equivalence implies

  19. The Hardness of Code Equivalence over Fq and its Application to Code-based Cryptography

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Hardness of Code Equivalence over Fq and its Application to Code-based Cryptography Nicolas {nicolas.sendrier,dimitrios.simos}@inria.fr Abstract. The code equivalence problem is to decide whether two review the hardness of code equivalence over Fq due to some recent negative results and argue

  20. Reducing Strong Equivalence of Logic Programs to Entailment in Classical Propositional Logic

    E-Print Network [OSTI]

    Wu, Dekai

    Reducing Strong Equivalence of Logic Programs to Entailment in Classical Propositional Logic ] introduced a notion of strong equivalence be­ tween two logic programs, and showed that it can be captured theories that reduces this notion of strong equivalence to en­ tailment in classical propositional logic

  1. ccsd-00003913,version1-17Jan2005 ZETA FUNCTIONS AND BLOW-NASH EQUIVALENCE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ccsd-00003913,version1-17Jan2005 ZETA FUNCTIONS AND BLOW-NASH EQUIVALENCE GOULWEN FICHOU Abstract. We propose a refinement of the notion of blow-Nash equivalence between Nash function germs, which has been introduced in [2] as an analog in the Nash setting of the blow-analytic equivalence defined by T

  2. The number of topological generators for full groups of ergodic equivalence relations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The number of topological generators for full groups of ergodic equivalence relations François Le associated with an ergodic probability measure-preserving (pmp) equivalence relation, namely its cost invariant is the partition of X into orbits induced by , that is, the orbit equivalence relation x R y iff

  3. Equivalence of CHR States Revisited Frank Raiser, Hariolf Betz, and Thom Fruhwirth

    E-Print Network [OSTI]

    Sarna-Starosta, Beata

    Equivalence of CHR States Revisited Frank Raiser, Hariolf Betz, and Thom Fr¨uhwirth Faculty it is generally agreed-upon that certain classes of CHR states should be considered equivalent, no standard proof for its compliance with rule application and provide a proof technique to determine equivalence

  4. PUBLISHED VERSION Equivalence of two independent calculations of the higher order guiding center Lagrangian

    E-Print Network [OSTI]

    PUBLISHED VERSION Equivalence of two independent calculations of the higher order guiding center 2014, pp.104506 and may be found at http://dx.doi.org/10.1063/1.4897317 #12;Equivalence of two conversion Phys. Plasmas 14, 082102 (2007); 10.1063/1.2748051 Equivalence of higherorder Lagrangians. II

  5. The Effective Theory of Borel Equivalence Relations Ekaterina B. Fokina Sy-David Friedman Asger Tornquist

    E-Print Network [OSTI]

    The Effective Theory of Borel Equivalence Relations Ekaterina B. Fokina Sy-David Friedman Asger T¨ornquist June 16, 2009 Abstract The study of Borel equivalence relations under Borel reducibility has developed-Kechris-Louveau ([5]) show that with respect to Borel reducibility, any Borel equivalence relation strictly above

  6. On full groups of non ergodic probability measure preserving equivalence relations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On full groups of non ergodic probability measure preserving equivalence relations François Le the topological rank of the full group of an aperiodic pmp equivalence relation to the cost of its ergodic property for full groups of aperiodic equivalence relations, and find a connected metric for which

  7. The Equivalence Problem of Multitape Finite Tero Harju and Juhani Karhumaki

    E-Print Network [OSTI]

    Harju, Tero

    The Equivalence Problem of Multitape Finite Automata Tero Harju and Juhani Karhum¨aki Deptartment we solve a long standing open problem in automata theory, namely, the equivalence problem for the multiplicity equivalence of finite automata over conservative monoids embeddable in a fully ordered group. 1

  8. Asymptotic equivalence for time continuous additive processes and their discrete counterpart

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Asymptotic equivalence for time continuous additive processes and their discrete counterpart Pierre the global asymptotic equivalence between a pure jumps Lévy process with unknown Lévy measure and a sequence equivalence, Lévy processes, additive processes, non-parametric regression. AMS 2010 subject classification

  9. Asymptotic equivalence of jumps Lvy processes and their discrete counterpart Pierre tora

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Asymptotic equivalence of jumps Lévy processes and their discrete counterpart Pierre Étoréa , Sana.Mariucci@imag.fr Abstract We establish the global asymptotic equivalence between a pure jumps Lévy process {Xt} on the time Poisson independent random variables with parameters linked with the Lévy measure . The equivalence result

  10. Quantum Equivalence and Quantum Signatures in Heat Engines

    E-Print Network [OSTI]

    Raam Uzdin; Amikam Levy; Ronnie Kosloff

    2015-04-15T23:59:59.000Z

    Quantum heat engines (QHE) are thermal machines where the working substance is quantum. In the extreme case the working medium can be a single particle or a few level quantum system. The study of QHE has shown a remarkable similarity with the standard thermodynamical models, thus raising the issue what is quantum in quantum thermodynamics. Our main result is thermodynamical equivalence of all engine type in the quantum regime of small action. They have the same power, the same heat, the same efficiency, and they even have the same relaxation rates and relaxation modes. Furthermore, it is shown that QHE have quantum-thermodynamic signature, i.e thermodynamic measurements can confirm the presence of quantum coherence in the device. The coherent work extraction mechanism enables power outputs that greatly exceed the power of stochastic (dephased) engines.

  11. Topographic Effects on Ambient Dose Equivalent Rates from Radiocesium Fallout

    E-Print Network [OSTI]

    Malins, Alex; Machida, Masahiko; Saito, Kimiaki

    2015-01-01T23:59:59.000Z

    Land topography can affect air radiation dose rates by locating radiation sources closer to, or further, from detector locations when compared to perfectly flat terrain. Hills and slopes can also shield against the propagation of gamma rays. To understand the possible magnitude of topographic effects on air dose rates, this study presents calculations for ambient dose equivalent rates at a range of heights above the ground for varying land topographies. The geometries considered were angled ground at the intersection of two planar surfaces, which is a model for slopes neighboring flat land, and a simple conical geometry, representing settings from hilltops to valley bottoms. In each case the radiation source was radioactive cesium fallout, and the slope angle was varied systematically to determine the effect of topography on the air dose rate. Under the assumption of homogeneous fallout across the land surface, and for these geometries and detector locations, the dose rates at high altitudes are more strongly...

  12. Classification of Ding's Schubert Varieties: Finer Rook Equivalence

    E-Print Network [OSTI]

    Develin, Mike; Martin, Jeremy L.; Reiner, Victor

    2007-02-01T23:59:59.000Z

    , Joichi and White [8] re-proved this result by showing that B\\ and Bfl are rook- equivalent if and only if the multisets of integers {A; - i}"=1 and {/i; - i} ?=1 coincide. Received by the editors August 24, 2004. This work was completed while the first... if this occurs (i.e., if A^ = fc for some k), and zWe- composable otherwise. For example, the partition A = (5,5, 5,6,6, 6,8,9) shown in Figure 1 is decomposable since A6 = 6. In this case, one has A(1) = (5, 5,5,6,6) and A(2) = (2,3), as shown in the figure...

  13. On the Equivalence Principle and Electrodynamics of Moving Bodies

    E-Print Network [OSTI]

    Trzetrzelewski, Maciej

    2015-01-01T23:59:59.000Z

    Consider an observer surrounded by a charged, conducting elevator (assume that the charge is isolated from the observer). In the presence of the external electric field the elevator will accelerate however, due to the screening effect, the observer will not be able to detect any electromagnetic field. According to the equivalence principle, the observer may identify the cause of the acceleration with the external gravitational field. However the elevator's motion is given by Lorentz-force equation. Therefore there should exist a metric, depending on electromagnetic potential, for which the geodesics coincide with the trajectories of the charged body in the electromagnetic field. We give a solution to this problem by finding such metric. In doing so one must impose a constraint on the electromagnetic field in a certain way. That constraint turns out to be achievable by marginal gauge transformations whose phase is closely related to the Hamilton-Jacobi function. Finally we show that for weak fields the Einstei...

  14. Total effective dose equivalent associated with fixed uranium surface contamination

    SciTech Connect (OSTI)

    Bogard, J.S.; Hamm, R.N.; Ashley, J.C.; Turner, J.E.; England, C.A.; Swenson, D.E.; Brown, K.S.

    1997-04-01T23:59:59.000Z

    This report provides the technical basis for establishing a uranium fixed-contamination action level, a fixed uranium surface contamination level exceeding the total radioactivity values of Appendix D of Title 10, Code of Federal Regulations, part 835 (10CFR835), but below which the monitoring, posting, and control requirements for Radiological Areas are not required for the area of the contamination. An area of fixed uranium contamination between 1,000 dpm/100 cm{sup 2} and that level corresponding to an annual total effective dose equivalent (TEDE) of 100 mrem requires only routine monitoring, posting to alert personnel of the contamination, and administrative control. The more extensive requirements for monitoring, posting, and control designated by 10CFR835 for Radiological Areas do not have to be applied for these intermediate fixed-contamination levels.

  15. The impact of equivalence ratio oscillations on combustion dynamics in a backward-facing step combustor

    SciTech Connect (OSTI)

    Murat Altay, H.; Speth, Raymond L.; Hudgins, Duane E.; Ghoniem, Ahmed F. [Massachusetts Institute of Technology, Department of Mechanical Engineering, Cambridge, MA 02139 (United States)

    2009-11-15T23:59:59.000Z

    The combustion dynamics of propane-air flames are investigated in an atmospheric pressure, atmospheric inlet temperature, lean, premixed backward-facing step combustor. We modify the location of the fuel injector to examine the impact of equivalence ratio oscillations arriving at the flame on the combustion dynamics. Simultaneous pressure, velocity, heat-release rate and equivalence ratio measurements and high-speed video from the experiments are used to identify and characterize several distinct operating modes. When the fuel is injected far upstream from the step, the equivalence ratio arriving at the flame is steady and the combustion dynamics are controlled only by flame-vortex interactions. In this case, different dynamic regimes are observed depending on the operating parameters. When the fuel is injected close to the step, the equivalence ratio arriving at the flame exhibits oscillations. In the presence of equivalence ratio oscillations, the measured sound pressure level is significant across the entire range of lean mean equivalence ratios even if the equivalence ratio oscillations arriving at the flame are out-of-phase with the pressure oscillations. The combustion dynamics are governed primarily by the flame-vortex interactions, while the equivalence ratio oscillations have secondary effects. The equivalence ratio oscillations could generate variations in the combustion dynamics in each cycle under some operating conditions, destabilize the flame at the entire range of the lean equivalence ratios, and increase the value of the mean equivalence ratio at the lean blowout limit. (author)

  16. Optical Anisotropy of Schwarzschild Metric within Equivalent Medium Framework

    E-Print Network [OSTI]

    Sina Khorasani; Bizhan Rashidian

    2009-12-16T23:59:59.000Z

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

  17. The dependence of chemistry on the inlet equivalence ratio in vortex-flame interactions [Printed LBNL report with title: The effect of stoichiometry on vortex flame interactions

    E-Print Network [OSTI]

    Tonse, Shaheen R.

    2011-01-01T23:59:59.000Z

    strongly affected by fuel equivalence ratio, (j>. We compareextremely sensitive to equivalence ratio. For cases w i t hacross a broad range of equivalence ratios. The model also

  18. On the Equivalence of Linear Programming Problems and Zero-Sum ...

    E-Print Network [OSTI]

    Ilan Adler

    2010-06-18T23:59:59.000Z

    Jun 18, 2010 ... Abstract: In 1951, Dantzig showed the equivalence of linear programming and two-person zero-sum games. However, in the description of his ...

  19. [Semantic equivalence of the Brazilian Portuguese version of the "Body Change Inventory"].

    E-Print Network [OSTI]

    Conti, MA; Ferreira, ME; Amaral, AC; Hearst, N; Cordás, TA; Scagliusi, FB

    2012-01-01T23:59:59.000Z

    portugués do “Body Change Inventory” Semantic Equivalence ofof the “Body Change Inventory” Maria Elisa Caputo Ferreira 1tion of the Body Change Inventory: An assessment instrument

  20. The Eective Theory of Borel Equivalence Relations Joint work with Katia Fokina and Asger Trnquist (postdocs at the

    E-Print Network [OSTI]

    The Eective Theory of Borel Equivalence Relations Joint work with Katia Fokina and Asger Törnquist s}, s : n for some nite n If E and F are Borel equivalence relations on the reals then E is Borel and transitive E B F i E B F and F B E (equivalence relation) [E]B = the equivalence class of E under B Object

  1. Mechanically equivalent elastic-plastic deformations and the problem of plastic spin David J. Steigmann1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Mechanically equivalent elastic-plastic deformations and the problem of plastic spin David J author to receive correspondence (steigman@me.berkeley.edu) Abstract: The problem of plastic spin is phrased in terms of a notion of mechanical equivalence among local relaxed configurations of an elastic/plastic

  2. Power-system dynamic equivalents:coherency recognition via the rate of change of

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    .F.I.M.A. Indexing terms: Power systems and plant, Simulation, Time-varying parameters, Dynamic equivalents AbstractPower-system dynamic equivalents:coherency recognition via the rate of change of kinetic energy H of sections of a power system, its main drawback being the extensive computation times required to recognise

  3. And-Invert-Graphs (AIGs) for Equivalence Verification, SAT Modulo Theory (SMT) Solvers, and the Motivation

    E-Print Network [OSTI]

    Kalla, Priyank

    And-Invert-Graphs (AIGs) for Equivalence Verification, SAT Modulo Theory (SMT) Solvers-learning Key idea: identify internal structural equivalences P. Kalla (Univ. of Utah) AIGs, SMT, Algebra of transformations Verification = reverse these transformations? Kind of... P. Kalla (Univ. of Utah) AIGs, SMT

  4. Chemiluminescence-based multivariate sensing of local equivalence ratios in premixed atmospheric methane-air flames

    SciTech Connect (OSTI)

    Tripathi, Markandey M.; Krishnan, Sundar R.; Srinivasan, Kalyan K.; Yueh, Fang-Yu; Singh, Jagdish P.

    2012-03-01T23:59:59.000Z

    Chemiluminescence emissions from OH*, CH*, C2, and CO2 formed within the reaction zone of premixed flames depend upon the fuel-air equivalence ratio in the burning mixture. In the present paper, a new partial least square regression (PLS-R) based multivariate sensing methodology is investigated and compared with an OH*/CH* intensity ratio-based calibration model for sensing equivalence ratio in atmospheric methane-air premixed flames. Five replications of spectral data at nine different equivalence ratios ranging from 0.73 to 1.48 were used in the calibration of both models. During model development, the PLS-R model was initially validated with the calibration data set using the leave-one-out cross validation technique. Since the PLS-R model used the entire raw spectral intensities, it did not need the nonlinear background subtraction of CO2 emission that is required for typical OH*/CH* intensity ratio calibrations. An unbiased spectral data set (not used in the PLS-R model development), for 28 different equivalence ratio conditions ranging from 0.71 to 1.67, was used to predict equivalence ratios using the PLS-R and the intensity ratio calibration models. It was found that the equivalence ratios predicted with the PLS-R based multivariate calibration model matched the experimentally measured equivalence ratios within 7%; whereas, the OH*/CH* intensity ratio calibration grossly underpredicted equivalence ratios in comparison to measured equivalence ratios, especially under rich conditions ( > 1.2). The practical implications of the chemiluminescence-based multivariate equivalence ratio sensing methodology are also discussed.

  5. Periodic equivalence ratio modulation method and apparatus for controlling combustion instability

    DOE Patents [OSTI]

    Richards, George A. (Morgantown, WV); Janus, Michael C. (Baltimore, MD); Griffith, Richard A. (Morgantown, WV)

    2000-01-01T23:59:59.000Z

    The periodic equivalence ratio modulation (PERM) method and apparatus significantly reduces and/or eliminates unstable conditions within a combustion chamber. The method involves modulating the equivalence ratio for the combustion device, such that the combustion device periodically operates outside of an identified unstable oscillation region. The equivalence ratio is modulated between preselected reference points, according to the shape of the oscillation region and operating parameters of the system. Preferably, the equivalence ratio is modulated from a first stable condition to a second stable condition, and, alternatively, the equivalence ratio is modulated from a stable condition to an unstable condition. The method is further applicable to multi-nozzle combustor designs, whereby individual nozzles are alternately modulated from stable to unstable conditions. Periodic equivalence ratio modulation (PERM) is accomplished by active control involving periodic, low frequency fuel modulation, whereby low frequency fuel pulses are injected into the main fuel delivery. Importantly, the fuel pulses are injected at a rate so as not to affect the desired time-average equivalence ratio for the combustion device.

  6. An analytical method to calculate equivalent fields to irregular symmetric and asymmetric photon fields

    SciTech Connect (OSTI)

    Tahmasebi Birgani, Mohamad J. [Department of Radiation Therapy, Golestan Hospital, JondiShapour University of Medical Science, Ahvaz (Iran, Islamic Republic of); Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of); Chegeni, Nahid, E-mail: nchegen@yahoo.com [Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of); Zabihzadeh, Mansoor; Hamzian, Nima [Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of)

    2014-04-01T23:59:59.000Z

    Equivalent field is frequently used for central axis depth-dose calculations of rectangular- and irregular-shaped photon beams. As most of the proposed models to calculate the equivalent square field are dosimetry based, a simple physical-based method to calculate the equivalent square field size was used as the basis of this study. The table of the sides of the equivalent square or rectangular fields was constructed and then compared with the well-known tables by BJR and Venselaar, et al. with the average relative error percentage of 2.5 ± 2.5% and 1.5 ± 1.5%, respectively. To evaluate the accuracy of this method, the percentage depth doses (PDDs) were measured for some special irregular symmetric and asymmetric treatment fields and their equivalent squares for Siemens Primus Plus linear accelerator for both energies, 6 and 18 MV. The mean relative differences of PDDs measurement for these fields and their equivalent square was approximately 1% or less. As a result, this method can be employed to calculate equivalent field not only for rectangular fields but also for any irregular symmetric or asymmetric field.

  7. Method for detecting water equivalent of snow using secondary cosmic gamma radiation

    DOE Patents [OSTI]

    Condreva, K.J.

    1997-01-14T23:59:59.000Z

    Water equivalent of accumulated snow determination by measurement of secondary background cosmic radiation attenuation by the snowpack. By measuring the attenuation of 3-10 MeV secondary gamma radiation it is possible to determine the water equivalent of snowpack. The apparatus is designed to operate remotely to determine the water equivalent of snow in areas which are difficult or hazardous to access during winter, accumulate the data as a function of time and transmit, by means of an associated telemetry system, the accumulated data back to a central data collection point for analysis. The electronic circuitry is designed so that a battery pack can be used to supply power. 4 figs.

  8. Method for detecting water equivalent of snow using secondary cosmic gamma radiation

    DOE Patents [OSTI]

    Condreva, Kenneth J. (1420 Fifth St., Livermore, Alameda County, CA 94550)

    1997-01-01T23:59:59.000Z

    Water equivalent of accumulated snow determination by measurement of secondary background cosmic radiation attenuation by the snowpack. By measuring the attentuation of 3-10 MeV secondary gamma radiation it is possible to determine the water equivalent of snowpack. The apparatus is designed to operate remotely to determine the water equivalent of snow in areas which are difficult or hazardous to access during winter, accumulate the data as a function of time and transmit, by means of an associated telemetry system, the accumulated data back to a central data collection point for analysis. The electronic circuitry is designed so that a battery pack can be used to supply power.

  9. On the Expression Complexity of Equivalence and Isomorphism of Primitive Positive Formulas

    E-Print Network [OSTI]

    Valeriote, Matt

    and existential quantification. The class of primitive positive formulas includes­and is essentially equivalent to in the study of the constraint satisfaction problem (CSP), which can be defined #12;as the problem of deciding

  10. On the Expression Complexity of Equivalence and Isomorphism of Primitive Positive Formulas

    E-Print Network [OSTI]

    Valeriote, Matt

    and existential quantification. The class of primitive positive formulas includes­and is essentially equivalent to in the study of the constraint satisfaction problem (CSP), which can be defined Dagstuhl Seminar Proceedings

  11. *can substitute CSE 131 & ESE 101 or equivalent Updated September 2014 Mechanical Engineering Sample Curriculum

    E-Print Network [OSTI]

    Subramanian, Venkat

    Dynamics and Vibration MEMS 4310 3 Vibration and Machine Elements Lab MEMS 405 2 Intro to Circuits ESE 230*can substitute CSE 131 & ESE 101 or equivalent Updated September 2014 Mechanical Engineering

  12. *can substitute CSE 131 & ESE 101 or equivalent Updated May 2014 Mechanical Engineering Sample Curriculum

    E-Print Network [OSTI]

    Subramanian, Venkat

    Modeling Simulation and Control MEMS 4301 3 Structural Dynamics and Vibration MEMS 431 4 Intro to Circuits*can substitute CSE 131 & ESE 101 or equivalent Updated May 2014 Mechanical Engineering Sample

  13. An Equivalent Network for Load-Flow Analysis of Power Systems

    E-Print Network [OSTI]

    Johnson, Merion Luke

    1960-01-01T23:59:59.000Z

    AN EQUIVALENT NETWORK FOR LOAD-FLOW ANALYSIS OF POWER SYSTEMS A Thesis by Meri on L. Johnson Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partihl fulfillment of the requirements for the degree...

  14. Design of oversampling current steering DAC with 640MHz equivalent clock frequency

    E-Print Network [OSTI]

    Choi, Yunyoung

    2002-01-01T23:59:59.000Z

    DESIGN OF OVERSAMPLING CURRENT STEERING DAC WITH 640MHZ EQUIVALENT CLOCK FREQUENCY A Thesis by YUNYOUNG CHOI 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 May 2002 Major Subject: Electrical Engineering DESIGN OF OVERSAMPLING CURRENT STEERING DAC WITH 640MHZ EQUIVALENT CLOCK FREQUENCY A Thesis by YUNYOUNG CHOI Submitted to Texas A8rM University in partial fulfillment...

  15. Test of Special Relativity and Equivalence Principle from Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    H. V. Klapdor--Kleingrothaus; H. Päs; U. Sarkar

    1998-09-15T23:59:59.000Z

    We generalize the formalism for testing Lorentz invariance and the equivalence principle in the neutrino sector. While neutrino oscillation bounds constrain the region of large mixing of the the weak and gravitational eigenstates, we obtain new constraints on violations of Lorentz invariance and the equivalence principle from neutrinoless double beta decay. These bounds apply even in the case of no mixing and thus probe a totally unconstrained region in the parameter space.

  16. Math 290 -Class Activity Assignment 17 November 4, 2014 Part I. A short lecture was given on equivalence relations.

    E-Print Network [OSTI]

    Singman, David

    on equivalence relations. Part II. Work on the following problems at the board so that Robert and I can comeRy provided xy = -1 or xy = 1. (a) Write a formal proof that R is an equivalence relation on A. (b) Find each of the equivalence classes 1/R, -1/R, i/R, and -i/R. (c) How many different equivalence classes are there? Is every

  17. Myhill-Nerode Handout Definition. An equivalence relation E on strings is right invariant iff concatenating a

    E-Print Network [OSTI]

    Clarke, Edmund M.

    a right-invariant equivalence relation E (on , for a given ) of finite index. Let S be the (finite) set

  18. Discrete Mathematics and Theoretical Computer Science DMTCS vol. 13:4, 2011, 2332 The extended equivalence and equation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    equivalence and equation solvability problems for groups Gábor Horváth1 and Csaba Szabó2 1 Institute. We prove that the extended equivalence problem is solvable in polynomial time for finite nilpotent, extended equation solvability, extended equivalence, groups 1 Introduction The algorithmic aspects

  19. ccsd-00001492,version1-27Apr2004 THE CORANK IS INVARIANT UNDER BLOW-NASH EQUIVALENCE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ccsd-00001492,version1-27Apr2004 THE CORANK IS INVARIANT UNDER BLOW-NASH EQUIVALENCE GOULWEN FICHOU-analytic equivalence between real analytic function germs? We give a partial positive answer in the particular case of the blow-Nash equivalence. The proof is based on the computation of some virtual Poincar´e polynomials

  20. Dual energy CT-based characterization of x-ray attenuation properties of breast equivalent material plates

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Dual energy CT-based characterization of x-ray attenuation properties of breast equivalent material of the same nominal breast density equivalence (+ 1.5 HU). In addition, dual energy CT provided mono equivalent material, breast density, attenuation properties, linear attenuation coefficients, dual energy CT

  1. Derivation of Accident-Specific Material-at-Risk Equivalency Factors

    SciTech Connect (OSTI)

    Jason P. Andrus; Dr. Chad L. Pope

    2012-05-01T23:59:59.000Z

    A novel method for calculating material at risk (MAR) dose equivalency developed at the Idaho National Laboratory (INL) now allows for increased utilization of dose equivalency for facility MAR control. This method involves near-real time accounting for the use of accident and material specific release and transport. It utilizes all information from the committed effective dose equation and the five factor source term equation to derive dose equivalency factors which can be used to establish an overall facility or process MAR limit. The equivalency factors allow different nuclide spectrums to be compared for their respective dose consequences by relating them to a specific quantity of an identified reference nuclide. The ability to compare spectrums to a reference limit ensures that MAR limits are in fact bounding instead of attempting to establish a representative or bounding spectrum which may lead to unintended or unanalyzed configurations. This methodology is then coupled with a near real time material tracking system which allows for accurate and timely material composition information and corresponding MAR equivalency values. The development of this approach was driven by the complex nature of processing operations in some INL facilities. This type of approach is ideally suited for facilities and processes where the composition of the MAR and possible release mechanisms change frequently but in well defined fashions and in a batch-type nature.

  2. The equivalence theorem in the generalized gravity of f(R)-type and canonical quantization II

    E-Print Network [OSTI]

    Yasuo Ezawa; Yoshiaki Ohkuwa

    2012-04-11T23:59:59.000Z

    We first review the equivalence theorem of the f(R)-type gravity to Einstein gravity with a scalar field by deriving it in a self-contained and pedagogical way. Then we describe the problem of to what extent the equivalence holds. Main problems are (i) Is the surface term given by Gibbons and Hawking which is necessary in Einstein gravity also necessary in the f(R)-type gravity? (ii) Does the equivalence hold also in quantum theory? (iii) Which metric is physical, i.e., which metric should be identified with the observed one? In this work, we clarify the problem (i) and review the problem (ii) in a canonical formalism which is the generalization of the Ostrogradski one. We briefly comment on the problem (iii). Some discussions are given on one of the results of (ii) concerning the general relativity in non-commutative spacetime.

  3. Variational equivalence between Ginzburg-Landau, XY spin systems and screw dislocations energies

    E-Print Network [OSTI]

    R. Alicandro; M. Cicalese; M. Ponsiglione

    2009-07-31T23:59:59.000Z

    We introduce and discuss discrete two-dimensional models for XY spin systems and screw dislocations in crystals. We prove that, as the lattice spacing $\\e$ tends to zero, the relevant energies in these models behave like a free energy in the complex Ginzburg-Landau theory of superconductivity, justifying in a rigorous mathematical language the analogies between screw dislocations in crystals and vortices in superconductors. To this purpose, we introduce a notion of asymptotic variational equivalence between families of functionals in the framework of $\\Gamma$-convergence. We then prove that, in several scaling regimes, the complex Ginzburg-Landau, the XY spin system and the screw dislocation energy functionals are variationally equivalent. Exploiting such an equivalence between dislocations and vortices, we can show new results concerning the asymptotic behavior of screw dislocations in the $|\\log\\e|^2$ energetic regime.

  4. Parameterized algorithms for quantitative differentials in spectrally equivalent medical diagnostic x-ray beams

    SciTech Connect (OSTI)

    Okunade, Akintunde Akangbe [Department of Physics, Obafemi Awolowo University, Ile-Ife, Osun State (Nigeria)

    2005-06-15T23:59:59.000Z

    Qualitative and quantitative equivalence of spectra transmitted by two different elemental filters require a good match in terms of shape and size over the entire energy range of 0-150 keV used in medical diagnostic radiology. However, the photoelectric absorptions and Compton scattering involved in the interaction of x rays with matter at these relatively low photon energies differ in a nonuniform manner with energy and atomic number. By careful choice of thicknesses for filter materials with an atomic number between 12 and 39, when compared with aluminum, it is possible to obtain transmitted beams of the same shape (quality) but not of the same size (quantity). In this paper, calculations have been carried out for the matching of the shapes and sizes of beams transmitted through specified thicknesses of aluminium filter and spectrally equivalent thicknesses of other filter materials (different from aluminium) using FORTRAN source codes traceable to the American Association of Physics in Medicine (AAPM), College Park, MD, USA. Parametrized algorithms for the evaluation of quantitative differentials (deficit or surplus) in radiation output (namely, photon fluence, exposure, kerma, energy imparted, absorbed dose, and effective dose) from these transmitted spectrally equivalent beams were developed. These differentials range between 1%, and 4% at 1 mm Al filtration and between 8%, and 25% for filtration of 6 mm Al for different filter materials in comparison with aluminum. Also developed were models for factors for converting measures of photon fluence, exposure-area product, (EAP), and kerma-area product (KAP) to risk related quantities such as energy imparted, absorbed dose, and effective dose from the spectrally equivalent beams. The thicknesses of other filter materials that are spectrally equivalent to given thicknesses of aluminum filter were characterized using polynomial functions. The fact that the use of equivalent spectra in radiological practice can provide means of ranking the differentials in radiographic image quality and stochastic risk is discussed.

  5. How many invariant polynomials are needed to decide local unitary equivalence of qubit states?

    SciTech Connect (OSTI)

    Maci??ek, Tomasz [Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa (Poland) [Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa (Poland); Faculty of Physics, University of Warsaw, ul. Ho?a 69, 00-681 Warszawa (Poland); Oszmaniec, Micha? [Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa (Poland)] [Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa (Poland); Sawicki, Adam [Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa (Poland) [Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa (Poland); School of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW (United Kingdom)

    2013-09-15T23:59:59.000Z

    Given L-qubit states with the fixed spectra of reduced one-qubit density matrices, we find a formula for the minimal number of invariant polynomials needed for solving local unitary (LU) equivalence problem, that is, problem of deciding if two states can be connected by local unitary operations. Interestingly, this number is not the same for every collection of the spectra. Some spectra require less polynomials to solve LU equivalence problem than others. The result is obtained using geometric methods, i.e., by calculating the dimensions of reduced spaces, stemming from the symplectic reduction procedure.

  6. On Topological Equivalence of Linear Flows with Applications to Bilinear Control Systems

    E-Print Network [OSTI]

    Colonius, Fritz

    On Topological Equivalence of Linear Flows with Applications to Bilinear Control Systems Victor theory for general linear ows. One of our main motivations comes from bilinear control systems, which This paper classi...es continuous linear ows using concepts and tech- niques from topological dynamics. Speci

  7. Equivalence of Control Systems with Linear Systems on Lie Groups and Homogeneous Spaces

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Equivalence of Control Systems with Linear Systems on Lie Groups and Homogeneous Spaces Philippe of geometric control theory arguments. Keywords: Lie groups; Homogeneous spaces; Linear systems; Com- plete JOUAN 28th November 2008 Abstract The aim of this paper is to prove that a control affine system

  8. CARTESIAN CLOSED 2-CATEGORIES AND PERMUTATION EQUIVALENCE IN HIGHER-ORDER REWRITING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    is the notion of permutation equivalence, which was generalised to the higher-order case by Bruggink [1]. He constructs a cartesian closed 2-category, whose 2-cells are Bruggink's proof terms modulo permutation closed 2-signatures are a 2-dimensional refinement of cartesian closed sketches [16, 4, 9]. Bruggink

  9. University of South Australia Go8 Foundation Studies Programs Entry Equivalences Code Academic Program

    E-Print Network [OSTI]

    Mayer, Wolfgang

    University of South Australia Go8 Foundation Studies Programs Entry Equivalences Code Academic Studies Program Western Australian Universities Foundation Studies Program University of Queensland.8 55 6 LBIF Bachelor of Engineering (Electrcal and Renewable Energy Systems) Y 75 74 67 285 72 6

  10. The equivalence principle and the relative velocity of local inertial frames

    E-Print Network [OSTI]

    F. Shojai; A. Shojai

    2015-05-25T23:59:59.000Z

    In this paper we explicitly show that in general relativity, the relative velocity of two local inertial frames is always less than the velocity of light. This fact is a by-product of the equivalence principle. The general result is then illustrated within two examples, the FLRW cosmological model and the Schwarzschild metric.

  11. Creating dynamic equivalent PV circuit models with impedance spectroscopy for arc-fault modeling.

    SciTech Connect (OSTI)

    Johnson, Jay Dean; Kuszmaul, Scott S.; Strauch, Jason E.; Schoenwald, David Alan

    2011-06-01T23:59:59.000Z

    Article 690.11 in the 2011 National Electrical Code{reg_sign} (NEC{reg_sign}) requires new photovoltaic (PV) systems on or penetrating a building to include a listed arc fault protection device. Currently there is little experimental or empirical research into the behavior of the arcing frequencies through PV components despite the potential for modules and other PV components to filter or attenuate arcing signatures that could render the arc detector ineffective. To model AC arcing signal propagation along PV strings, the well-studied DC diode models were found to inadequately capture the behavior of high frequency arcing signals. Instead dynamic equivalent circuit models of PV modules were required to describe the impedance for alternating currents in modules. The nonlinearities present in PV cells resulting from irradiance, temperature, frequency, and bias voltage variations make modeling these systems challenging. Linearized dynamic equivalent circuits were created for multiple PV module manufacturers and module technologies. The equivalent resistances and capacitances for the modules were determined using impedance spectroscopy with no bias voltage and no irradiance. The equivalent circuit model was employed to evaluate modules having irradiance conditions that could not be measured directly with the instrumentation. Although there was a wide range of circuit component values, the complex impedance model does not predict filtering of arc fault frequencies in PV strings for any irradiance level. Experimental results with no irradiance agree with the model and show nearly no attenuation for 1 Hz to 100 kHz input frequencies.

  12. Wave-Based Sound Propagation in Large Open Scenes using an Equivalent Source Formulation

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    Wave-Based Sound Propagation in Large Open Scenes using an Equivalent Source Formulation RAVISH We present a novel approach for wave-based sound propagation suitable for large, open spaces spanning or simulation systems, present a significant chal- lenge for interactive, wave-based sound propagation

  13. On Enumeration of Polynomial Equivalence Classes and Their Application to MPKC

    E-Print Network [OSTI]

    . These problems are equivalent to finding the scale of the key space of a multivariate cryptosystem and the total and the potential capability of MPKC. We also consider their applications in the analysis of a specific multivariate number of different multivariate cryptographic schemes respectively, which might impact the security

  14. An equivalent circuit for the Brushless Doubly Fed Machine (BDFM) including parameter estimation

    E-Print Network [OSTI]

    Cambridge, University of

    are presented. The machine is intended for use as a variable speed generator, or drive. A per phase equivalent generator for wind turbines, although the benefits of the BDFM for variable speed drives have also been of operation in a doubly- fed mode, in which the shaft speed has a fixed relationship to the two excitation

  15. Lanthanum silicate gate dielectric stacks with subnanometer equivalent oxide thickness utilizing an interfacial silica consumption reaction

    E-Print Network [OSTI]

    Garfunkel, Eric

    Lanthanum silicate gate dielectric stacks with subnanometer equivalent oxide thickness utilizing-8087 Received 13 April 2005; accepted 6 June 2005; published online 26 July 2005 A silicate reaction between process route to interface elimination, while producing a silicate dielectric with a higher temperature

  16. Characterizing motion contour detection mechanisms and equivalent mechanisms in the luminance domain

    E-Print Network [OSTI]

    Zanker, Johannes M.

    Characterizing motion contour detection mechanisms and equivalent mechanisms in the luminance with sparsely defined luminance Gabor patterns and found similar results, but only at low sampling densities. The nature of the information and the strength of the signal influence the properties of luminance contour

  17. Evaluation of Equivalent Static Wind Loads on Buildings Xinzhong Chen1

    E-Print Network [OSTI]

    Kareem, Ahsan

    Evaluation of Equivalent Static Wind Loads on Buildings Xinzhong Chen1 and Ahsan Kareem2 1 Professor of Engineering, University of Notre Dame, Indiana, USA, kareem@nd.edu ABSTRACT Wind loads or by high frequency force balance (HFFB) measurements. Although this loading infor- mation can be directly

  18. Equivalence of the Fleming-Viot and Look-down models of Muller's ratchet

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Equivalence of the Fleming-Viot and Look-down models of Muller's ratchet Julien Audiffren Abstract We consider Muller's ratchet Fleming-Viot model with compensatory mu- tations, which is an infinite to the previous Muller's ratchet model. Keywords : Muller's ratchet, Fleming-Viot, Look-down, Tightness, SDEs

  19. Modeling proton intensity gradients and radiation dose equivalents in the inner

    E-Print Network [OSTI]

    Pringle, James "Jamie"

    Modeling proton intensity gradients and radiation dose equivalents in the inner heliosphere using exposure in IP space. In this paper, we utilize EMMREM to study the radial dependence of proton peak crossfield diffusion at large radial distances. Our results show that radial dependencies of proton peak

  20. Thvenin Emitter Circuit The Thvenin equivalent circuit seen looking into the emitter is useful in calculating

    E-Print Network [OSTI]

    Leach Jr.,W. Marshall

    voltage ve(oc) to the short-circuit emitter current. The circuit for calculating the short-circuit currentThévenin Emitter Circuit The Thévenin equivalent circuit seen looking into the emitter is useful. With the emitter open circuited, we denote the emitter voltage by ve(oc). The voltage source in the Thévenin

  1. Equivalent hydraulic conductivity of an experimental stratigraphy: Implications for basin-scale flow

    E-Print Network [OSTI]

    Gable, Carl W.

    Equivalent hydraulic conductivity of an experimental stratigraphy: Implications for basin-scale groundwater flow models are the estimation of representative hydraulic conductivity for the model units. In this study, high-resolution, fully heterogeneous basin-scale hydraulic conductivity map is generated

  2. Capacitive Behavior of HF Power Transformers: Global Approach to Draw Robust Equivalent Circuits

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    behavior of all components. Among these components, HF power transformers constitute a special case. EvenCapacitive Behavior of HF Power Transformers: Global Approach to Draw Robust Equivalent Circuits of n-windings HF power transformers. A global approach, mainly based on energy considerations about

  3. Copyright 2013 IEEE. Reprinted, with permission from: Line Limit Preserving Power System Equivalent

    E-Print Network [OSTI]

    Copyright © 2013 IEEE. Reprinted, with permission from: Line Limit Preserving Power System IEEE endorsement of any of the Power Systems Engineering Research Center 's products or services equivalent of a power system is a simplified model of the original system with the ability to preserve some

  4. Creep Prediction Using The Non-Linear Strain Energy Equivalence Theory

    E-Print Network [OSTI]

    is sustained over a time interval, ti, to the creep strain obtained during a creep test, c . The average stress, , sustained during the stress-strain test is equal to the creep stress, c . ( ) == t t o c dt dtt 0 [1Creep Prediction Using The Non-Linear Strain Energy Equivalence Theory Jennifer K. Lynch, Ph

  5. Simple proof of equivalence between adiabatic quantum computation and the circuit model

    E-Print Network [OSTI]

    Ari Mizel; Daniel A. Lidar; Morgan Mitchell

    2007-02-26T23:59:59.000Z

    We prove the equivalence between adiabatic quantum computation and quantum computation in the circuit model. An explicit adiabatic computation procedure is given that generates a ground state from which the answer can be extracted. The amount of time needed is evaluated by computing the gap. We show that the procedure is computationally efficient.

  6. Zero-knowledge Test of Vector Equivalence and Granulation of User Data with Privacy

    E-Print Network [OSTI]

    Canny, John

    Zero-knowledge Test of Vector Equivalence and Granulation of User Data with Privacy Yitao Duan architecture and practical protocols for user data validation and vector addition based computation. It turned, in a privacy-preserving manner. They can also be of independent interest for other fields such as data mining

  7. Updated 7/2014Post-BS Full-Time Program Plan DNP Program Course Plan

    E-Print Network [OSTI]

    Sheridan, Jennifer

    and Application of Evidence- Based Practice 3 Total 12 Total 12 Total 6 Year2 N726 Foundations for APN Clinical761 Program Planning, Evaluation and Quality Improvement 3 N772 Leadership and Organizational Decision Making in Health Care 3 Elective (can be taken any semester) 3 Total 12 Total 12 Total 2 Year3 N826

  8. MBA CAREER CONNECTIONS FULL-TIME MBA CLASSES OF 2012 AND 2013

    E-Print Network [OSTI]

    Tsien, Roger Y.

    MBA Employment Statistics (mbacsc.org). Conformance to this business school industry standard ensures adheres to the MBA Career Services Council (MBA CSC) Standards for Reporting MBA Employment Statistics

  9. 2012 EmploymEnt REpoRt RICE MBA Full TIME

    E-Print Network [OSTI]

    Senior Consultant Deutsche Bank Ryan Stohl Investment Banking Associate Energy Market Exchange Melanie Walker Investment Banking Associate Kalypso Mallory Engler Senior Consultant Sunny Sun Senior Consultant Magalhaes Global Accounts Manager Lloyd's Jeffrey Freedman Associate Marathon Oil Corporation Jesse Filipi

  10. UNDERGRADUATE TUITION FEES 2013/14 FULL TIME PROGRAMMES -UK/EU STUDENTS

    E-Print Network [OSTI]

    Anderson, Jim

    onwards tba Health Sciences BSc Occ Therapy & Physio £9,000 BSc Podiatry £10,350 Non standard part time

  11. Full-Time MBA (Global ), Part-Time Master www.business.kaist.ac.kr

    E-Print Network [OSTI]

    Kim, Min H.

    .8) . (, , ) 6. : 1 TOEFL, TOEIC, TEPS, IELTS, PTE 1 - 2 ( ) KAIST ( ) 1 KAIST OPI 1) . TOEFL, TOEIC, TEPS, IELTS, PTE - (2013. 4. 29()) 2 ( ) - . KAIST OPI TEST - (2013. 4. 29()) 2 - . - OPI 2) 2 ( ) . (, .) 3) 3

  12. Harvard International Office Full Time International Students in the various schools of Harvard University

    E-Print Network [OSTI]

    Uganda 2 1 1 1 5 Ukraine 2 1 11 1 2 17 United Arab Emirates 2 1 1 1 5 United Kingdom 33 62 3 1 3 68 8 14

  13. Brandeis University New Full-Time Faculty and Visiting Professors, 2012-2013

    E-Print Network [OSTI]

    Snider, Barry B.

    in English at Wesleyan University, Ms. Anderson went on to receive an MFA in scenic design of Identity Construction and Social Change," argues that the mawl, a group of rootless outsiders, were key

  14. POSTGRADUATE TUITION FEES 2013/14 FULL TIME PROGRAMMES -UK/EU STUDENTS

    E-Print Network [OSTI]

    Anderson, Jim

    & IS Management £8,000 Msc Strategy and Innovation (new from Oct 2013) £8,000 Msc Finance (new from Oct 2013) £8,500 Msc Risk and Finance (new from Oct 2013) £8,500 MSC Project Management(new from Oct 2013) £8,000 Law in Public Health Practice (non professional) lower fee £5,700 MSc Leadership & Management in Health & Social

  15. Posted 1/20/10 Embedded Systems Architect Full Time Salaried

    E-Print Network [OSTI]

    Argamon, Shlomo

    will be responsible to lead in the development of automotive display and information systems software. They will lead on automotive information and display systems with specific knowledge of LCD controller and LCD interfaces. Initiate and lead design reviews, initiate and deliver FMEAs. Working knowledge of embedded RTOS -- VRTX

  16. Effects of fuel type and equivalence ratios on the flickering of triple flames

    SciTech Connect (OSTI)

    Sahu, K.B.; Kundu, A.; Ganguly, R.; Datta, A. [Department of Power Engineering, Jadavpur University, Salt Lake Campus, Kolkata 700098 (India)

    2009-02-15T23:59:59.000Z

    An experimental study has been conducted in axisymmetric, co-flowing triple flames with different equivalence ratios of the inner and outer reactant streams (2<{phi}{sub in}<3 and 0{<=}{phi}{sub out}<0.7). Different fuel combinations, like propane/propane, propane/methane or methane/methane in the inner and outer streams respectively, have been used in the experiments. The structures of the triple flames have been compared for the different fuel combinations and equivalence ratios. The conditions under which triple flames exhibit oscillation have been identified. During the oscillation, the non-premixed flame and the outer lean premixed flame flicker strongly, while the inner rich premixed flame remains more or less stable. The flickering frequency has been evaluated through image processing and fast Fourier transform (FFT) of the average pixel intensity of the image frames. It is observed that, for all the fuel combinations, the frequency decreases with the increase in the outer equivalence ratio, while it is relatively invariant with the change in the inner equivalence ratio. However, an increase in the inner equivalence ratio affects the structure of the flame by increasing the heights of the inner premixed flame and non-premixed flame and also enlarges the yellow soot-laden zone at the tip of the inner flame. A scaling analysis of the oscillating flames has been performed based on the measured parameters, which show a variation of Strouhal number (St) with Richardson number (Ri) as St {proportional_to} Ri{sup 0.5}. The fuel type is found to have no influence on this correlation. (author)

  17. Equivalence of Glass Transition and Colloidal Glass Transition in the Hard-Sphere Limit Thomas K. Haxton,2

    E-Print Network [OSTI]

    Weeks, Eric R.

    Equivalence of Glass Transition and Colloidal Glass Transition in the Hard-Sphere Limit Ning Xu,1 that the slowing of the dynamics in simulations of several model glass-forming liquids is equivalent to the hard-sphere glass transition in the low-pressure limit. In this limit, we find universal behavior of the relaxation

  18. Admission's procedure for PhD studies Evaluation of the equivalence of your Master Certificate or Licentiate

    E-Print Network [OSTI]

    Richner, Heinz

    or Licentiate At this point you have already applied online for a PhD of Science at www of science. The equivalence committee evaluates now if your Master Certificate or Licentiate is equivalent of the transcripts of your Bachelor's Degree AND Master's Degree or Licentiate containing credits and grades

  19. Electromagnetic wave propagation in an active medium and the equivalent Schrdinger equation with an energy-dependent complex potential

    E-Print Network [OSTI]

    Electromagnetic wave propagation in an active medium and the equivalent Schrödinger equation to provide an alternative, but equivalent, representation of plane electromagnetic em wave propagation it oscillates and then decreases exponentially. Thus, for large systems, the wave propagation is suppressed

  20. EMC analysis of static converters by the extraction of a complete equivalent circuit via a dedicated PEEC method

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    EMC analysis of static converters by the extraction of a complete equivalent circuit via. By coupling these two methods, an equivalent circuit with lumped elements is obtained. Consequently, EMC capacitance effects, is rapidly limited to analyze the EM interactions between subsystems or to draw up EMC

  1. 2012 Damon A. Miller Page 1 of 4 4: Transfer Functions, Parameters, and Equivalent Circuits of Linear

    E-Print Network [OSTI]

    Miller, Damon A.

    . To experimentally measure and use an equivalent circuit representation for circuit analysis. 8. To improve circuit of Figure 1 to represent the small signal operation (i.e. in the LINEAR region) of the amplifier© 2012 Damon A. Miller Page 1 of 4 4: Transfer Functions, Parameters, and Equivalent Circuits

  2. An insight on the Proof of Orientifold Planar Equivalence on the Lattice

    E-Print Network [OSTI]

    Agostino Patella

    2006-04-21T23:59:59.000Z

    In a recent paper, Armoni, Shifman and Veneziano (ASV) gave a formal non-perturbative proof of planar equivalence between the bosonic sectors of SU(N) super Yang-Mills theory and of a gauge theory with a massless quark in the antisymmetric two-indexes representation. In the case of three colors, the latter theory is nothing but one-flavor QCD. Numerical simulations are necessary to test the validity of that proof and to estimate the size of 1/N corrections. As a first step towards numerical simulations, I will give a lattice version of the ASV proof of orientifold planar equivalence in the strong-coupling and large-mass phase.

  3. Interacting Dark Energy Model: Exact Analytic Solution and Equivalent Scenario for MCG and Scalar field

    E-Print Network [OSTI]

    Supriya Pan; Subenoy Chakraborty

    2014-04-02T23:59:59.000Z

    Dark energy models have got tremendous enthusiasm recently both from theoretical and observational point of view. In the present work we assume that the universe at present is dominated by dark matter (DM) and dark energy (DE) which do not evolve separately but interact non-gravitationally with one another and are equivalent to a single dark fluid. We construct explicit solutions for two choices of the equation of state parameter for DE and results are analyzed both graphically as well as analytically. The modified chaplygin gas (MCG) model is shown to be compatible with this effective single dark fluid as well as different interacting holographic dark energy (HDE) models characterized by various IR cut off lengths. Finally, we establish the equivalence between HDE with different scalar field models.

  4. Breakdown of the equivalence between gravitational mass and energy for a composite quantum body

    E-Print Network [OSTI]

    Andrei G. Lebed

    2014-04-14T23:59:59.000Z

    The simplest quantum composite body, a hydrogen atom, is considered in the presence of a weak external gravitational field. We define an operator for the passive gravitational mass of the atom in the post-Newtonian approximation of the general relativity and show that it does not commute with its energy operator. Nevertheless, the equivalence between the expectation values of the mass and energy is shown to survive at a macroscopic level for stationary quantum states. Breakdown of the equivalence between passive gravitational mass and energy at a microscopic level for stationary quantum states can be experimentally detected by studying unusual electromagnetic radiation, emitted by the atoms, supported by and moving in the Earth's gravitational field with constant velocity, using spacecraft or satellite

  5. Application of Nuclear Regulatory Commission Regulation Equivalency to Construction of New Nuclear Facilities

    SciTech Connect (OSTI)

    BISHOP, G.E.

    1999-06-02T23:59:59.000Z

    The Spent Nuclear Fuels Project (SNFP) Office of the Department of Energy (DOE), Richland Operations Office, is charged with moving 2.100 metric tons of spent nuclear fuel elements left over from plutonium production into semi-permanent storage at DOE'S Hanford site in Washington state. In anticipation of eventual NRC regulation, the DOE decided to impose NRC requirements on new SNFP facility design and construction, specifically for the Cold Vacuum Drying Facility (CVDF) and the Canister Storage Building (CSB). The SNFP implemented this policy of ''NRC equivalency'' with the goal of achieving a level of nuclear safety equivalent to that of NRC-licensed fuel processing facilities. Appropriate features of the NRC licensing process were adopted. However, the SNFP maintained applicable DOE requirements in tandem with the NRC regulations. Project work is continuing, with the first fuel movement scheduled for November, 2000.

  6. What are the Hidden Quantum Processes In Einstein's Weak Principle of Equivalence?

    E-Print Network [OSTI]

    Ostoma, T; Ostoma, Tom; Trushyk, Mike

    2000-01-01T23:59:59.000Z

    We provide a quantum derivation of Einstein's Weak Equivalence Principle (WEP) of general relativity using a new quantum gravity theory proposed by the authors called Electro-Magnetic Quantum Gravity or EMQG (ref. 1). Newtonian Inertia is a property of matter due to the strictly local electrical force interactions contributed by each of the (electrically charged) elementary particles of the mass with the surrounding (electrically charged) virtual particles (virtual masseons) of the quantum vacuum. The sum of all the tiny electrical forces (photon exchanges with the vacuum particles) originating in each charged elementary particle of the accelerated mass is the source of the total inertial force of a mass which opposes accelerated motion in Newton's law 'F = MA'. We found that gravity also involves the same 'inertial' electromagnetic force component that exists in inertial mass. We propose that Einstein's general relativistic Weak Equivalence Principle (WEP) originates from common 'lower level' quantum vacuum ...

  7. The Equivalent Thermal Resistance of Tile Roofs with and without Batten Systems

    SciTech Connect (OSTI)

    Miller, William A [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Clay and concrete tile roofs were installed on a fully instrumented attic test facility operating in East Tennessee s climate. Roof, attic and deck temperatures and heat flows were recorded for each of the tile roofs and also on an adjacent attic cavity covered with a conventionally pigmented and direct-nailed asphalt shingle roof. The data were used to benchmark a computer tool for simulation of roofs and attics and the tool used to develop an approach for computing an equivalent seasonal R-value for sub-tile venting. The approach computed equal heat fluxes through the ceilings of roofs having different combinations of surface radiation properties and or building constructions. A direct nailed shingle roof served as a control for estimating the equivalent thermal resistance of the air space. Simulations were benchmarked to data in the ASHRAE Fundamentals for the thermal resistance of inclined and closed air spaces.

  8. Galactic interstellar abundance surveys with IUE. II. The equivalent widths and column densities

    SciTech Connect (OSTI)

    Van Steenberg, M.E.; Shull, J.M.

    1988-06-01T23:59:59.000Z

    This paper continues a survey of interstellar densities, abundances, and cloud structure in the Galaxy, using the International Ultraviolet Explorer (IUE) satellite. Equivalent widths of 18 ultraviolet resonance transitions are presented and column densities for Si II, Mn II, Fe II, S II, and Zn II toward 261 early-type stars are derived. These equivalent widths and column densities agree within the stated errors of earlier Copernicus, BUSS, or IUE surveys of Mn II, Fe II, S II, and Zn II for 45 stars in common. The column densities are derived from single-component curves of growth with a common b-value based on that of Fe II and Si II. 63 references.

  9. Gravitational ultrarelativistic spin-orbit interaction and the weak equivalence principle

    E-Print Network [OSTI]

    Roman Plyatsko

    2005-07-07T23:59:59.000Z

    It is shown that the gravitational ultrarelativistic spin-orbit interaction violates the weak equivalence principle in the traditional sense. This fact is a direct consequence of the Mathisson-Papapetrou equations in the frame of reference comoving with a spinning test particle. The widely held assumption that the deviation of a spinning test body from a geodesic trajectory is caused by tidal forces is not correct

  10. de Sitter space and the equivalence between f(R) and scalar-tensor gravity

    E-Print Network [OSTI]

    Valerio Faraoni

    2007-03-26T23:59:59.000Z

    It is shown that, when f'' is non-vanishing, metric f(R) gravity is completely equivalent to a scalar-tensor theory (with zero Brans-Dicke parameter) with respect to perturbations of de Sitter space, contrary to previous expectations. Moreover, the stability conditions of de Sitter space with respect to homogeneous and inhomogeneous perturbations coincide in most scalar-tensor theories, as is the case in metric f(R) gravity.

  11. ON NEARLY EQUIVALENT FORMS FOR GSp(4) DANIEL FILE AND RAMIN TAKLOO-BIGHASH

    E-Print Network [OSTI]

    Takloo-Bighash, Ramin

    the theta lift of the representations (1, 2) and (JL 1 , JL 2 ) to GSp(4). Lemma 1. In the local situation this lemma is well-known. The non-vanishing of the local theta lifts follows from Remark 6.8 of [P where Tv is split. Let 1,v, 2,v be two non-equivalent supercuspidal representations of D× v GL2(Fv) w

  12. On the Equivalence of the Dirac Equation Between General Relativity and Teleparallel Gravity

    SciTech Connect (OSTI)

    Bagci, Meral; Havare, Ali; Soeguet, Kenan [Mersin University, Department of Physics, Mersin (Turkey)

    2007-04-23T23:59:59.000Z

    The Teleparellel Theory (TPT) is one of alternative ways of describing the gravitational field. Unlike the general relativistic description of gravitation in the TPT curvature is assumed to vanish instead of torsion. In general relativistic theory (GRT) the Riemann geometry is used to describe the equations while in the case of TPT the Weitzenboeck space-time is used. In this study we showed the equivalence of the Dirac equation between these two theories.

  13. Gravitational radiation fields in teleparallel equivalent of general relativity and their energies

    E-Print Network [OSTI]

    G. G. L. Nashed

    2011-01-05T23:59:59.000Z

    We derive two new retarded solutions in the teleparallel theory equivalent to general relativity (TEGR). One of these solutions gives a divergent energy. Therefore, we used the regularized expression of the gravitational energy-momentum tensor, which is a coordinate dependent. A detailed analysis of the loss of the mass of Bondi space-time is carried out using the flux of the gravitational energy-momentum.

  14. Untwisting Noncommutative R^d and the Equivalence of Quantum Field Theories

    E-Print Network [OSTI]

    Robert Oeckl

    2000-03-13T23:59:59.000Z

    We show that there is a duality exchanging noncommutativity and non-trivial statistics for quantum field theory on R^d. Employing methods of quantum groups, we observe that ordinary and noncommutative R^d are related by twisting. We extend the twist to an equivalence for quantum field theory using the framework of braided quantum field theory. The twist exchanges both commutativity with noncommutativity and ordinary with non-trivial statistics. The same holds for the noncommutative torus.

  15. Lunar Laser Ranging Tests of the Equivalence Principle with the Earth and Moon

    E-Print Network [OSTI]

    James G. Williams; Slava G. Turyshev; Dale H. Boggs

    2009-01-02T23:59:59.000Z

    A primary objective of the Lunar Laser Ranging (LLR) experiment is to provide precise observations of the lunar orbit that contribute to a wide range of science investigations. Time series of the highly accurate measurements of the distance between the Earth and Moon provide unique information used to determine whether, in accordance with the Equivalence Principle (EP), both of these celestial bodies are falling towards the Sun at the same rate, despite their different masses, compositions, and gravitational self-energies. Current LLR solutions give $(-1.0 \\pm 1.4) \\times 10^{-13}$ for any possible inequality in the ratios of the gravitational and inertial masses for the Earth and Moon, $\\Delta(M_G/M_I)$. This result, in combination with laboratory experiments on the weak equivalence principle, yields a strong equivalence principle (SEP) test of $\\Delta(M_G/M_I)_{\\tt SEP} = (-2.0 \\pm 2.0) \\times 10^{-13}$. Such an accurate result allows other tests of gravitational theories. The result of the SEP test translates into a value for the corresponding SEP violation parameter $\\eta$ of $(4.4 \\pm 4.5)\\times10^{-4}$, where $\\eta = 4\\beta -\\gamma -3$ and both $\\gamma$ and $\\beta$ are parametrized post-Newtonian (PPN) parameters. The PPN parameter $\\beta$ is determined to be $\\beta - 1 = (1.2 \\pm 1.1) \\times 10^{-4}$. Focusing on the tests of the EP, we discuss the existing data, and characterize the modeling and data analysis techniques. The robustness of the LLR solutions is demonstrated with several different approaches that are presented in the text. We emphasize that near-term improvements in the LLR ranging accuracy will further advance the research of relativistic gravity in the solar system, and, most notably, will continue to provide highly accurate tests of the Equivalence Principle.

  16. Reflector modelling of small high leakage cores making use of multi-group nodal equivalence theory

    SciTech Connect (OSTI)

    Theron, S. A. [South African Nuclear Energy Corporation (Necsa), PO Box 582, Pretoria, 0001 (South Africa); Reitsma, F. [Calvera Consultants, PO Box 150, Strubensvallei, 1735 (South Africa)

    2012-07-01T23:59:59.000Z

    This research focuses on modelling reflectors in typical material testing reactors (MTRs). Equivalence theory is used to homogenise and collapse detailed transport solutions to generate equivalent nodal parameters and albedo boundary conditions for reflectors, for subsequent use in full core nodal diffusion codes. This approach to reflector modelling has been shown to be accurate for two-group large commercial light water reactor (LWR) analysis, but has not been investigated for MTRs. MTRs are smaller, with much larger leakage, environment sensitivity and multi-group spectrum dependencies than LWRs. This study aims to determine if this approach to reflector modelling is an accurate and plausible homogenisation technique for the modelling of small MTR cores. The successful implementation will result in simplified core models, better accuracy and improved efficiency of computer simulations. Codes used in this study include SCALE 6.1, OSCAR-4 and EQUIVA (the last two codes are developed and used at Necsa). The results show a five times reduction in calculational time for the proposed reduced reactor model compared to the traditional explicit model. The calculated equivalent parameters however show some sensitivity to the environment used to generate them. Differences in the results compared to the current explicit model, require more careful investigation including comparisons with a reference result, before its implementation can be recommended. (authors)

  17. Solar system and equivalence principle constraints on f(R) gravity by chameleon approach

    E-Print Network [OSTI]

    Salvatore Capozziello; Shinji Tsujikawa

    2008-03-30T23:59:59.000Z

    We study constraints on f(R) dark energy models from solar system experiments combined with experiments on the violation of equivalence principle. When the mass of an equivalent scalar field degree of freedom is heavy in a region with high density, a spherically symmetric body has a thin-shell so that an effective coupling of the fifth force is suppressed through a chameleon mechanism. We place experimental bounds on the cosmologically viable models recently proposed in literature which have an asymptotic form f(R)=R-lambda R_c [1-(R_c/R)^{2n}] in the regime R >> R_c. From the solar-system constraints on the post-Newtonian parameter gamma, we derive the bound n>0.5, whereas the constraints from the violations of weak and strong equivalence principles give the bound n>0.9. This allows a possibility to find the deviation from the LambdaCDM cosmological model. For the model f(R)=R-lambda R_c(R/R_c)^p with 0

  18. Perfect Computational Equivalence between Quantum Turing Machines and Finitely Generated Uniform Quantum Circuit Families

    E-Print Network [OSTI]

    Harumichi Nishimura; Masanao Ozawa

    2008-12-05T23:59:59.000Z

    In order to establish the computational equivalence between quantum Turing machines (QTMs) and quantum circuit families (QCFs) using Yao's quantum circuit simulation of QTMs, we previously introduced the class of uniform QCFs based on an infinite set of elementary gates, which has been shown to be computationally equivalent to the polynomial-time QTMs (with appropriate restriction of amplitudes) up to bounded error simulation. This result implies that the complexity class BQP introduced by Bernstein and Vazirani for QTMs equals its counterpart for uniform QCFs. However, the complexity classes ZQP and EQP for QTMs do not appear to equal their counterparts for uniform QCFs. In this paper, we introduce a subclass of uniform QCFs, the finitely generated uniform QCFs, based on finite number of elementary gates and show that the class of finitely generated uniform QCFs is perfectly equivalent to the class of polynomial-time QTMs; they can exactly simulate each other. This naturally implies that BQP as well as ZQP and EQP equal the corresponding complexity classes of the finitely generated uniform QCFs.

  19. Formulating a simplified equivalent representation of distribution circuits for PV impact studies.

    SciTech Connect (OSTI)

    Reno, Matthew J.; Broderick, Robert Joseph; Grijalva, Santiago [Georgia Institute of Technology, Atlanta, GA

    2013-04-01T23:59:59.000Z

    With an increasing number of Distributed Generation (DG) being connected on the distribution system, a method for simplifying the complexity of the distribution system to an equivalent representation of the feeder is advantageous for streamlining the interconnection study process. The general characteristics of the system can be retained while reducing the modeling effort required. This report presents a method of simplifying feeders to only specified buses-of-interest. These buses-of-interest can be potential PV interconnection locations or buses where engineers want to verify a certain power quality. The equations and methodology are presented with mathematical proofs of the equivalence of the circuit reduction method. An example 15-bus feeder is shown with the parameters and intermediate example reduction steps to simplify the circuit to 4 buses. The reduced feeder is simulated using PowerWorld Simulator to validate that those buses operate with the same characteristics as the original circuit. Validation of the method is also performed for snapshot and time-series simulations with variable load and solar energy output data to validate the equivalent performance of the reduced circuit with the interconnection of PV.

  20. Electrical characterization and an equivalent circuit model of a microhollow cathode discharge reactor

    SciTech Connect (OSTI)

    Taylan, O.; Berberoglu, H., E-mail: berberoglu@mail.utexas.edu [Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712 (United States)

    2014-07-28T23:59:59.000Z

    This paper reports the electrical characterization and an equivalent circuit of a microhollow cathode discharge (MHCD) reactor in the self-pulsing regime. A MHCD reactor was prototyped for air plasma generation, and its current-voltage characteristics were measured experimentally in the self-pulsing regime for applied voltages from 2000 to 3000?V. The reactor was modeled as a capacitor in parallel with a variable resistor. A stray capacitance was also introduced to the circuit model to represent the capacitance of the circuit elements in the experimental setup. The values of the resistor and capacitors were recovered from experimental data, and the proposed circuit model was validated with independent experiments. Experimental data showed that increasing the applied voltage increased the current, self-pulsing frequency and average power consumption of the reactor, while it decreased the peak voltage. The maximum and the minimum voltages obtained using the model were in agreement with the experimental data within 2.5%, whereas the differences between peak current values were less than 1%. At all applied voltages, the equivalent circuit model was able to accurately represent the peak and average power consumption as well as the self-pulsing frequency within the experimental uncertainty. Although the results shown in this paper was for atmospheric air pressures, the proposed equivalent circuit model of the MHCD reactor could be generalized for other gases at different pressures.

  1. Measurements of neutron dose equivalent for a proton therapy center using uniform scanning proton beams

    SciTech Connect (OSTI)

    Zheng Yuanshui; Liu Yaxi; Zeidan, Omar; Schreuder, Andries Niek; Keole, Sameer [ProCure Proton Therapy Center, 5901 West Memorial Road, Oklahoma City, Oklahoma 73142 (United States); INTEGRIS Cancer Insititute, 5911 West Memorial Road, Oklahoma City, Oklahoma 73142 (United States); 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)

    2012-06-15T23:59:59.000Z

    Purpose: Neutron exposure is of concern in proton therapy, and varies with beam delivery technique, nozzle design, and treatment conditions. Uniform scanning is an emerging treatment technique in proton therapy, but neutron exposure for this technique has not been fully studied. The purpose of this study is to investigate the neutron dose equivalent per therapeutic dose, H/D, under various treatment conditions for uniform scanning beams employed at our proton therapy center. Methods: Using a wide energy neutron dose equivalent detector (SWENDI-II, ThermoScientific, MA), the authors measured H/D at 50 cm lateral to the isocenter as a function of proton range, modulation width, beam scanning area, collimated field size, and snout position. They also studied the influence of other factors on neutron dose equivalent, such as aperture material, the presence of a compensator, and measurement locations. They measured H/D for various treatment sites using patient-specific treatment parameters. Finally, they compared H/D values for various beam delivery techniques at various facilities under similar conditions. Results: H/D increased rapidly with proton range and modulation width, varying from about 0.2 mSv/Gy for a 5 cm range and 2 cm modulation width beam to 2.7 mSv/Gy for a 30 cm range and 30 cm modulation width beam when 18 Multiplication-Sign 18 cm{sup 2} uniform scanning beams were used. H/D increased linearly with the beam scanning area, and decreased slowly with aperture size and snout retraction. The presence of a compensator reduced the H/D slightly compared with that without a compensator present. Aperture material and compensator material also have an influence on neutron dose equivalent, but the influence is relatively small. H/D varied from about 0.5 mSv/Gy for a brain tumor treatment to about 3.5 mSv/Gy for a pelvic case. Conclusions: This study presents H/D as a function of various treatment parameters for uniform scanning proton beams. For similar treatment conditions, the H/D value per uncollimated beam size for uniform scanning beams was slightly lower than that from a passive scattering beam and higher than that from a pencil beam scanning beam, within a factor of 2. Minimizing beam scanning area could effectively reduce neutron dose equivalent for uniform scanning beams, down to the level close to pencil beam scanning.

  2. Measurement of neutron dose equivalent outside and inside of the treatment vault of GRID therapy

    SciTech Connect (OSTI)

    Wang, Xudong; Charlton, Michael A.; Esquivel, Carlos; Eng, Tony Y.; Li, Ying; Papanikolaou, Nikos [University of Texas Health Science Center, San Antonio, Texas 78229 (United States)] [University of Texas Health Science Center, San Antonio, Texas 78229 (United States)

    2013-09-15T23:59:59.000Z

    Purpose: To evaluate the neutron and photon dose equivalent rates at the treatment vault entrance (H{sub n,D} and H{sub G}), and to study the secondary radiation to the patient in GRID therapy. The radiation activation on the grid was studied.Methods: A Varian Clinac 23EX accelerator was working at 18 MV mode with a grid manufactured by .decimal, Inc. The H{sub n,D} and H{sub G} were measured using an Andersson–Braun neutron REM meter, and a Geiger Müller counter. The radiation activation on the grid was measured after the irradiation with an ion chamber ?-ray survey meter. The secondary radiation dose equivalent to patient was evaluated by etched track detectors and OSL detectors on a RANDO{sup ®} phantom.Results: Within the measurement uncertainty, there is no significant difference between the H{sub n,D} and H{sub G} with and without a grid. However, the neutron dose equivalent to the patient with the grid is, on average, 35.3% lower than that without the grid when using the same field size and the same amount of monitor unit. The photon dose equivalent to the patient with the grid is, on average, 44.9% lower. The measured average half-life of the radiation activation in the grid is 12.0 (±0.9) min. The activation can be categorized into a fast decay component and a slow decay component with half-lives of 3.4 (±1.6) min and 15.3 (±4.0) min, respectively. There was no detectable radioactive contamination found on the surface of the grid through a wipe test.Conclusions: This work indicates that there is no significant change of the H{sub n,D} and H{sub G} in GRID therapy, compared with a conventional external beam therapy. However, the neutron and scattered photon dose equivalent to the patient decrease dramatically with the grid and can be clinical irrelevant. Meanwhile, the users of a grid should be aware of the possible high dose to the radiation worker from the radiation activation on the surface of the grid. A delay in handling the grid after the beam delivery is suggested.

  3. Environmental Health & Safety

    E-Print Network [OSTI]

    Environmental Health & Safety Sub Department Name 480 Oak Rd, Stanford, CA 94305 T 650.723.0448 F 650.725.3468 DEPUTY DIRECTOR, ENVIRONMENTAL HEALTH AND SAFETY Exempt, Full-Time (100% FTE) Posted May 1, 2014 The Department of Environmental Health and Safety (EH&S) at Stanford University seeks

  4. Casimir Friction in Terms of Moving Harmonic Oscillators: Equivalence Between Two Different Formulations

    E-Print Network [OSTI]

    Johan S. Høye; Iver Brevik

    2011-06-04T23:59:59.000Z

    The Casimir friction problem can be dealt with in a simplified way by considering two harmonic oscillators moving with constant relative velocity. Recently we calculated the energy dissipation for such a case, [EPL {\\bf 91}, 60003 (2010); Europ. Phys. J. D {\\bf 61}, 335 (2011)]. A recent study of Barton [New J. Phys. {\\bf 12}, 113044 (2010)] seemingly leads to a different result for the dissipation. If such a discrepancy really were true, it would imply a delicate difficulty for the basic theory of Casimir friction. In the present note we show that the expressions for the dissipation are in fact physically equivalent, at T=0.

  5. Noise Equivalent Counts Based Emission Image Reconstruction Algorithm of Tomographic Gamma Scanning

    E-Print Network [OSTI]

    Ke Wang; Zheng Li; Wei Feng; Dong Han

    2014-04-17T23:59:59.000Z

    Tomographic Gamma Scanning (TGS) is a technique used to assay the nuclide distribution and radioactivity in nuclear waste drums. Both transmission and emission scans are performed in TGS and the transmission image is used for the attenuation correction in emission reconstructions. The error of the transmission image, which is not considered by the existing reconstruction algorithms, negatively affects the final results. An emission reconstruction method based on Noise Equivalent Counts (NEC) is presented. Noises from the attenuation image are concentrated to the projection data to apply the NEC Maximum-Likelihood Expectation-Maximization algorithm. Experiments are performed to verify the effectiveness of the proposed method.

  6. Equivalence and Hermiticity of Dirac Hamiltonians in the Kerr gravitational field

    E-Print Network [OSTI]

    M. V. Gorbatenko; V. P. Neznamov

    2014-06-08T23:59:59.000Z

    In the paper, for the Kerr field, we prove that Chandrasekhar's Dirac Hamiltonian and the self-adjoint Hamiltonian H_{\\eta} with a flat scalar product of the wave functions are physically equivalent. Operators of transformation of Chandrasekhar's Hamiltonian and wave functions to the \\eta-representation with a flat scalar product are defined explicitly. If the domain of the wave functions of Dirac's equation in the Kerr field is bounded by two-dimensional surfaces of revolution around the z axis, Chandrasekhar's Hamiltonian and the self-adjoint Hamiltonian in the \\eta-representation are Hermitian with equality of the scalar products,(\\psi, H \\varphi)=(H \\psi, \\varphi).

  7. XRD, lead equivalent and UV-VIS properties study of Ce and Pr lead silicate glasses

    SciTech Connect (OSTI)

    Alias, Nor Hayati, E-mail: norhayati@nuclearmalaysia.gov.my; Abdullah, Wan Shafie Wan, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Norriza Mohd, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Muhammad Jamal Md, E-mail: norhayati@nuclearmalaysia.gov.my; Zali, Nurazila Mat; Abdullah, Nuhaslinda Ee [Malaysian Nuclear Agency, 43000, Bangi, Kajang, Selangor (Malaysia); Muhammad, Azali [Malaysian Society for Non-Destructive Testing (Malaysia)

    2014-02-12T23:59:59.000Z

    In this work, Cerium (Ce) and Praseodymium (Pr) containing lead silicate glasses were produced with 2 different molar ratios low (0.2 wt%) and high (0.4wt%). These types of glasses can satisfy the characteristics required for radiation shielding glasses and minimize the lead composition in glass. The radiation shielding properties of the synthesized glasses is explained in the form of lead equivalent study. The XRD diffraction and UV-VIS analysis were performed to observe the structural changes of the synthesis glasses at 1.5 Gy gamma radiation exposures.

  8. Null Result for the Violation of Equivalence Principle with Free-Fall Rotating Gyroscopes

    E-Print Network [OSTI]

    Luo, J; Zhang, Y Z; Zhou, Z B

    2002-01-01T23:59:59.000Z

    The differential acceleration between a rotating mechanical gyroscope and a non-rotating one is directly measured by using a double free-fall interferometer, and no apparent differential acceleration has been observed at the relative level of 2x10{-6}. It means that the equivalence principle is still valid for rotating extended bodies, i.e., the spin-gravity interaction between the extended bodies has not been observed at this level. Also, to the limit of our experimental sensitivity, there is no observed asymmetrical effect or anti-gravity of the rotating gyroscopes as reported by hayasaka et al.

  9. A Lorentz-Poincaré type interpretation of the Weak Equivalence Principle

    E-Print Network [OSTI]

    Jan; Broekaert

    2007-03-22T23:59:59.000Z

    The validity of the Weak Equivalence Principle relative to a local inertial frame is detailed in a scalar-vector gravitation model with Lorentz-Poincar\\'e type interpretation. Given the previously established first Post-Newtonian concordance of dynamics with General Relativity, the principle is to this order compatible with GRT. The gravitationally modified Lorentz transformations, on which the observations in physical coordinates depend, are shown to provide a physical interpretation of \\emph{parallel transport}. A development of ``geodesic'' deviation in terms of the present model is given as well.

  10. Faculty of Education Research Associate (part-time, 0.6 fte)

    E-Print Network [OSTI]

    Talbot, James P.

    assistant staff in support of teaching, research, outreach projects, finance, library, IT, audio of government departments and national and international agencies active in Education. The Faculty has a varied and materials that secure the highest outcomes for pupils. The prime role of Cambridge University staff

  11. Breakdown of the Equivalence between Energy Content and Weight in a Weak Gravitational Field for a Quantum Body

    E-Print Network [OSTI]

    Andrei Lebed

    2012-05-14T23:59:59.000Z

    It is shown that weight operator of a composite quantum body in a weak external gravitational field in the post-Newtonian approximation of the General Relativity does not commute with its energy operator, taken in the absence of the field. Nevertheless, the weak equivalence between the expectations values of weight and energy is shown to survive at a macroscopic level for stationary quantum states for the simplest composite quantum body - a hydrogen atom. Breakdown of the weak equivalence between weight and energy at a microscopic level for stationary quantum states can be experimentally detected by studying unusual electromagnetic radiation, emitted by the atoms, supported and moved in the Earth gravitational field with constant velocity, using spacecraft or satellite. For superpositions of stationary quantum states, a breakdown of the above mentioned equivalence at a macroscopic level leads to time dependent oscillations of the expectation values of weight, where the equivalence restores after averaging over time procedure.

  12. Closing the neutrinoless double beta decay window into violations of the equivalence principle and/or Lorentz invariance

    E-Print Network [OSTI]

    A. Halprin; R. R. Volkas

    1999-04-12T23:59:59.000Z

    We have examined Lorentz invariance and equivalence principle violations in the neutrino sector as manifested in neutrinoless double beta decay. We conclude that this rare decay cannot provide a useful view of these exotic processes.

  13. The improvement of the method of equivalent cross section in HTR

    SciTech Connect (OSTI)

    Guo, J.; Li, F. [Inst. of Nuclear and New Energy Technology, Tsinghua Univ., Beijing 100084 (China)

    2012-07-01T23:59:59.000Z

    The Method of Equivalence Cross-Sections (MECS) is a combined transport-diffusion method. By appropriately adjusting the diffusion coefficient of homogenized absorber region, the diffusion theory could yield satisfactory results for the full core model with strong neutron absorber material, for example the control rod in High temperature gas cooled reactor (HTR). Original implementation of MECS based on 1-D cell transport model has some limitation on accuracy and applicability, a new implementation of MECS based on 2-D transport model are proposed and tested in this paper. This improvement can extend the MECS to the calculation of twin small absorber ball system which have a non-circular boring in graphite reflector and different radial position. A least-square algorithm for the calculation of equivalent diffusion coefficient is adopted, and special treatment for diffusion coefficient for higher energy group is proposed in the case that absorber is absent. Numerical results to adopt MECS into control rod calculation in HTR are encouraging. However, there are some problems left. (authors)

  14. Euler-Bernoulli beams from a symmetry standpoint-characterization of equivalent equations

    E-Print Network [OSTI]

    Soh, C Wafo

    2007-01-01T23:59:59.000Z

    We completely solve the equivalence problem for Euler-Bernoulli equation using Lie symmetry analysis. We show that the quotient of the symmetry Lie algebra of the Bernoulli equation by the infinite-dimensional Lie algebra spanned by solution symmetries is a representation of one of the following Lie algebras: $2A_1$, $A_1\\oplus A_2$, $3A_1$, or $A_{3,3}\\oplus A_1$. Each quotient symmetry Lie algebra determines an equivalence class of Euler-Bernoulli equations. Save for the generic case corresponding to arbitrary lineal mass density and flexural rigidity, we characterize the elements of each class by giving a determined set of differential equations satisfied by physical parameters (lineal mass density and flexural rigidity). For each class, we provide a simple representative and we explicitly construct transformations that maps a class member to its representative. The maximally symmetric class described by the four-dimensional quotient symmetry Lie algebra $A_{3,3}\\oplus A_1$ corresponds to Euler-Bernoulli e...

  15. Does the Equivalence between Gravitational Mass and Energy Survive for a Composite Quantum Body?

    E-Print Network [OSTI]

    Andrei G. Lebed

    2014-04-14T23:59:59.000Z

    We define passive and active gravitational mass operators of the simplest composite quantum body - a hydrogen atom. Although they do not commute with its energy operator, the equivalence between the expectation values of passive and active gravitational masses and energy is shown to survive for stationary quantum states. In our calculations of passive gravitational mass operator, we take into account not only kinetic and Coulomb potential energies but also the so-called relativistic corrections to electron motion in a hydrogen atom. Inequivalence between passive and active gravitational masses and energy at a macroscopic level is demonstrated to reveal itself as time dependent oscillations of the expectation values of the gravitational masses for superpositions of stationary quantum states. Breakdown of the equivalence between passive gravitational mass and energy at a microscopic level reveals itself as unusual electromagnetic radiation, emitted by macroscopic ensemble of hydrogen atoms, moved by small spacecraft with constant velocity in the Earth's gravitational field. We suggest the corresponding experiment on the Earth's orbit to detect this radiation, which would be the first direct experiment where quantum effects in general relativity are observed.

  16. Results of the remote sensing feasibility study for the uranium hexafluoride storage cylinder yard program

    SciTech Connect (OSTI)

    Balick, L.K.; Bowman, D.R. [Bechtel Nevada, Las Vegas, NV (United States). Remote Sensing Lab.; Bounds, J.H. [Los Alamos National Lab., NM (United States)] [and others

    1997-02-01T23:59:59.000Z

    The US DOE manages the safe storage of approximately 650,000 tons of depleted uranium hexafluoride remaining from the Cold War. This slightly radioactive, but chemically active, material is contained in more than 46,000 steel storage cylinders that are located at Oak Ridge, Tennessee; Paducah, Kentucky; and Portsmouth, Ohio. Some of the cylinders are more than 40 years old, and approximately 17,500 are considered problem cylinders because their physical integrity is questionable. These cylinders require an annual visual inspection. The remainder of the 46,000-plus cylinders must be visually inspected every four years. Currently, the cylinder inspection program is extremely labor intensive. Because these inspections are accomplished visually, they may not be effective in the early detection of leaking cylinders. The inspection program requires approximately 12--14 full-time-equivalent (FTE) employees. At the cost of approximately $125K per FTE, this translates to $1,500K per annum just for cylinder inspection. As part of the technology-development portion of the DOE Cylinder Management Program, the DOE Office of Facility Management requested the Remote Sensing Laboratory (RSL) to evaluate remote sensing techniques that have potential to increase the effectiveness of the inspection program and, at the same time, reduce inspection costs and personnel radiation exposure. During two site visits (March and May 1996) to the K-25 Site at Oak Ridge, TN, RSL personnel tested and characterized seven different operating systems believed to detect leakage, surface contamination, thickness and corrosion of cylinder walls, and general area contamination resulting from breached cylinders. The following techniques were used and their performances are discussed: Laser-induced fluorescent imaging; Long-range alpha detection; Neutron activation analysis; Differential gamma-ray attenuation; Compton scatterometry; Active infrared inspection; and Passive thermal infrared imaging.

  17. RBS STUDY ABROAD EQUIVALENCY GUIDE It is the student's responsibility to check the courses below to confirm they are active and still being

    E-Print Network [OSTI]

    Lin, Xiaodong

    ) Not equivalent to Management Information Systems 33:136:370 Corporate Financial Management (FTX2024S) RBS Programs AFRICA SOUTH AFRICA University of Cape Town Control of Financial Information Systems (ACC2018S Equivalent: Corporate Finance 33:390:400 Information Systems I (INF1003F/S/H) Not Equivalent to Management

  18. The equivalent electrical permittivity of gas-solid mixtures at intermediate solid volume fractions.

    SciTech Connect (OSTI)

    Torczynski, John Robert; Ceccio, Steven Louis; Tortora, Paul Richard

    2005-07-01T23:59:59.000Z

    Several mixture models are evaluated for their suitability in predicting the equivalent permittivity of dielectric particles in a dielectric medium for intermediate solid volume fractions (0.4 to 0.6). Predictions of the Maxwell, Rayleigh, Bottcher and Bruggeman models are compared to computational simulations of several arrangements of solid particles in a gas and to the experimentally determined permittivity of a static particle bed. The experiment uses spherical glass beads in air, so air and glass permittivity values (1 and 7, respectively) are used with all of the models and simulations. The experimental system used to measure the permittivity of the static particle bed and its calibration are described. The Rayleigh model is found to be suitable for predicting permittivity over the entire range of solid volume fractions (0-0.6).

  19. Determination of explosive blast loading equivalencies with an explosively driven shock tube

    SciTech Connect (OSTI)

    Jackson, Scott I [Los Alamos National Laboratory; Hill, Larry G [Los Alamos National Laboratory; Morris, John S [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Recently there has been significant interest in evaluating the potential of many different non-ideal energetic materials to cause blast damage. We present a method intended to quantitatively compare the blast loading generated by different energetic materials through use of an explosively driven shock tube. The test explosive is placed at the closed breech end of the tube and initiated with a booster charge. The resulting shock waves are then contained and focused by the tube walls to form a quasi-one-dimensional blast wave. Pressure transducers along the tube wall measure the blast overpressure versus distance from the source and allow the use of the one-dimensional blast scaling relationship to determine the energy deposited into the blast wave per unit mass of test explosive. These values are then compared for different explosives of interest and to other methods of equivalency determination.

  20. Subthreshold Production of Kaons and Antikaons in Nucleus-Nucleus Collisions at Equivalent Beam Energies

    SciTech Connect (OSTI)

    Barth, R.; Senger, P.; Ahner, W.; Debowski, M.; Grosse, E.; Koczon, P.; Miskowiec, D.; Schwab, E.; Schicker, R. [Gesellschaft fuer Schwerionenforschung, D-64220 Darmstadt (Germany)] [Gesellschaft fuer Schwerionenforschung, D-64220 Darmstadt (Germany); Muentz, C.; Oeschler, H.; Sturm, C.; Wagner, A. [Technische Hochschule Darmstadt, D-64289 Darmstadt (Germany)] [Technische Hochschule Darmstadt, D-64289 Darmstadt (Germany); Beckerle, P.; Bormann, C.; Brill, D.; Schwab, E.; Shin, Y.; Stroebele, H. [Johann Wolfgang Goethe Universitaet, D-60325 Frankfurt am Main (Germany)] [Johann Wolfgang Goethe Universitaet, D-60325 Frankfurt am Main (Germany); Kohlmeyer, B.; Puehlhofer, F.; Speer, J.; Voelkel, K. [Phillips Universitaet, D-35037 Marburg (Germany)] [Phillips Universitaet, D-35037 Marburg (Germany); Cieslak, M.; Walus, W. [Jagiellonian University, PL-30-059 Krakow (Poland)] [Jagiellonian University, PL-30-059 Krakow (Poland)

    1997-05-01T23:59:59.000Z

    Kaon production has been studied in Ni+Ni collisions at beam energies of 0.8{endash}1.8GeV/nucleon with the kaon spectrometer at GSI. The K{sup +} production cross section increases as E{sup 5.3{plus_minus}0.2}{sub beam} . Both K{sup +} and K{sup -} mesons are predominantly produced in central collisions. The K{sup -}/K{sup +} ratio measured at equivalent beam energies below the respective particle production threshold is considerably larger for Ni+Ni collisions than for nucleon-nucleon collisions near threshold. This is evidence for an enhanced K{sup -} production in the nuclear medium. {copyright} {ital 1997} {ital The American Physical Society}

  1. Convergence analysis of a CMFD method based on generalized equivalence theory

    SciTech Connect (OSTI)

    Xu, Y. [Argonne National Laboratory, Bldg. 208, 9700 South Case Ave., Argonne, IL 60439 (United States); Downar, T. [Dept. of Nuclear Engineering and Radiological Sciences, Univ. of Michigan, 2355 Bonisteel Blvd, Ann Arbor, MI 48109-2104 (United States)

    2012-07-01T23:59:59.000Z

    CMFD acceleration methods have been successful in reducing the computational burden for steady-state and transient reactor calculations. However, recent work on a complex coupled code BWR ATWS event has exposed possible issues with the stability of the CMFD method when standard CMFD methods are used. During the simulation of the ATWS boron injection event in the BWR, the PARCS code failed to converge with the existing CMFD method. A new CMFD method based on generalized equivalence theory was developed and the PARCS solution converged for the same ATWS event. This paper presents the new method and a detailed analytic and numerical convergence analysis. The results show that the new CMFD converges for all possible cross sections combinations anticipated in Light Water Reactor simulation and unlike existing CMFD methods, it is very robust even when the initial guess is far from final true solution. (authors)

  2. Lineal energy calibration of mini tissue-equivalent gas-proportional counters (TEPC)

    SciTech Connect (OSTI)

    Conte, V.; Moro, D.; Colautti, P. [LNL-INFN, viale dell'Universita 2, I-35020 Legnaro (Italy); Grosswendt, B. [guest at LNL-INFN (Italy)

    2013-07-18T23:59:59.000Z

    Mini TEPCs are cylindrical gas proportional counters of 1 mm or less of sensitive volume diameter. The lineal energy calibration of these tiny counters can be performed with an external gamma-ray source. However, to do that, first a method to get a simple and precise spectral mark has to be found and then the keV/{mu}m value of this mark. A precise method (less than 1% of uncertainty) to identify this markis described here, and the lineal energy value of this mark has been measured for different simulated site sizes by using a {sup 137}Cs gamma source and a cylindrical TEPC equipped with a precision internal {sup 244}Cm alpha-particle source, and filled with propane-based tissue-equivalent gas mixture. Mini TEPCs can be calibrated in terms of lineal energy, by exposing them to {sup 137}Cesium sources, with an overall uncertainty of about 5%.

  3. Clinical prototype of a plastic water-equivalent scintillating fiber dosimeter array for QA applications

    SciTech Connect (OSTI)

    Lacroix, Frederic; Archambault, Louis; Gingras, Luc; Guillot, Mathieu; Beddar, A. Sam; Beaulieu, Luc [Departement de Physique, de Genie Physique et d'Optique, Universite Laval, Quebec, Quebec, G1K 7P4 (Canada) and Departement de Radio-Oncologie, Hotel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, Quebec, Quebec G1R2J6 (Canada); Department of Radiation Physics, University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030 (United States); Departement de Physique, de Genie Physique et d'Optique, Universite Laval, Quebec, Quebec G1K 7P4 (Canada) and Departement de Radio-Oncologie, Hotel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, Quebec, Quebec G1R2J6 (Canada); Department of Radiation Physics, University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030 (United States); Departement de Physique, de Genie Physique et d'Optique, Universite Laval, Quebec, Quebec, G1K 7P4 (Canada) and Departement de Radio-Oncologie, Hotel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, Quebec, Quebec G1R2J6 (Canada)

    2008-08-15T23:59:59.000Z

    A clinical prototype of a scintillating fiber dosimeter array for quality assurance applications is presented. The array consists of a linear array of 29 plastic scintillation detectors embedded in a water-equivalent plastic sheet coupled to optical fibers used to guide optical photons to a charge coupled device (CCD) camera. The CCD is packaged in a light-tight, radiation-shielded housing designed for convenient transport. A custom designed connector is used to ensure reproducible mechanical positioning of the optical fibers relative to the CCD. Profile and depth dose characterization measurements are presented and show that the prototype provides excellent dose measurement reproducibility ({+-}0.8%) in-field and good accuracy ({+-}1.6% maximum deviation) relative to the dose measured with an IC10 ionization chamber.

  4. Tunneling through equivalent multihumped fission barriers: Some implications for the actinide nuclei

    SciTech Connect (OSTI)

    Bhandari, B.S.; Al-Kharam, A.S.

    1989-03-01T23:59:59.000Z

    A comparison of the penetrabilities calculated in the Wentzel-Kramers-Brillouin approximation through equivalent multihumped fission barriers shows that the penetrability saturates to its maximum value much more slowly for a three-humped potential than that for comparable two-humped and single-humped potentials. An analysis of the slopes of the near-barrier photofission cross sections of actinides yields results that can be understood in terms of the predicted potential barrier shapes for these nuclei, and thus provides evidence in support of resolving the ''thorium anomaly'' along the lines suggested by Moeller and Nix. Our results further indicate that the uranium nuclei, and in particular /sup 236/U, may more likely exhibit three-humped potential shapes in which the apparent consequences of both the second and third minima may be observable.

  5. Maxwell's theory on a post-Riemannian spacetime and the equivalence principle

    E-Print Network [OSTI]

    Roland A. Puntigam; Claus L{ä}mmerzahl; Friedrich W. Hehl

    1997-02-12T23:59:59.000Z

    The form of Maxwell's theory is well known in the framework of general relativity, a fact that is related to the applicability of the principle of equivalence to electromagnetic phenomena. We pose the question whether this form changes if torsion and/or nonmetricity fields are allowed for in spacetime. Starting from the conservation laws of electric charge and magnetic flux, we recognize that the Maxwell equations themselves remain the same, but the constitutive law must depend on the metric and, additionally, may depend on quantities related to torsion and/or nonmetricity. We illustrate our results by putting an electric charge on top of a spherically symmetric exact solution of the metric-affine gauge theory of gravity (comprising torsion and nonmetricity). All this is compared to the recent results of Vandyck.

  6. A new online detector for estimation of peripheral neutron equivalent dose in organ

    SciTech Connect (OSTI)

    Irazola, L., E-mail: leticia@us.es; Sanchez-Doblado, F. [Departamento de Fisiología Médica y Biofísica, Universidad de Sevilla, Sevilla 41009, Spain and Servicio de Radiofísica, Hospital Universitario Virgen Macarena, Sevilla 41007 (Spain); Lorenzoli, M.; Pola, A. [Departimento di Ingegneria Nuclear, Politecnico di Milano, Milano 20133 (Italy); Bedogni, R. [Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare (INFN), Frascati Roma 00044 (Italy); Terrón, J. A. [Servicio de Radiofísica, Hospital Universitario Virgen Macarena, Sevilla 41007 (Spain); Sanchez-Nieto, B. [Instituto de Física, Pontificia Universidad Católica de Chile, Santiago 4880 (Chile); Expósito, M. R. [Departamento de Física, Universitat Autònoma de Barcelona, Bellaterra 08193 (Spain); Lagares, J. I.; Sansaloni, F. [Centro de Investigaciones Energéticas y Medioambientales y Tecnológicas (CIEMAT), Madrid 28040 (Spain)

    2014-11-01T23:59:59.000Z

    Purpose: Peripheral dose in radiotherapy treatments represents a potential source of secondary neoplasic processes. As in the last few years, there has been a fast-growing concern on neutron collateral effects, this work focuses on this component. A previous established methodology to estimate peripheral neutron equivalent doses relied on passive (TLD, CR39) neutron detectors exposed in-phantom, in parallel to an active [static random access memory (SRAMnd)] thermal neutron detector exposed ex-phantom. A newly miniaturized, quick, and reliable active thermal neutron detector (TNRD, Thermal Neutron Rate Detector) was validated for both procedures. This first miniaturized active system eliminates the long postprocessing, required for passive detectors, giving thermal neutron fluences in real time. Methods: To validate TNRD for the established methodology, intrinsic characteristics, characterization of 4 facilities [to correlate monitor value (MU) with risk], and a cohort of 200 real patients (for second cancer risk estimates) were evaluated and compared with the well-established SRAMnd device. Finally, TNRD was compared to TLD pairs for 3 generic radiotherapy treatments through 16 strategic points inside an anthropomorphic phantom. Results: The performed tests indicate similar linear dependence with dose for both detectors, TNRD and SRAMnd, while a slightly better reproducibility has been obtained for TNRD (1.7% vs 2.2%). Risk estimates when delivering 1000 MU are in good agreement between both detectors (mean deviation of TNRD measurements with respect to the ones of SRAMnd is 0.07 cases per 1000, with differences always smaller than 0.08 cases per 1000). As far as the in-phantom measurements are concerned, a mean deviation smaller than 1.7% was obtained. Conclusions: The results obtained indicate that direct evaluation of equivalent dose estimation in organs, both in phantom and patients, is perfectly feasible with this new detector. This will open the door to an easy implementation of specific peripheral neutron dose models for any type of treatment and facility.

  7. On the equivalence of dynamically orthogonal and bi-orthogonal methods: Theory and numerical simulations

    SciTech Connect (OSTI)

    Choi, Minseok [Division of Applied Mathematics, Brown University, Providence, RI 02912 (United States); Sapsis, Themistoklis P. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Karniadakis, George Em, E-mail: george_karniadakis@brown.edu [Division of Applied Mathematics, Brown University, Providence, RI 02912 (United States)

    2014-08-01T23:59:59.000Z

    The Karhunen–Lòeve (KL) decomposition provides a low-dimensional representation for random fields as it is optimal in the mean square sense. Although for many stochastic systems of practical interest, described by stochastic partial differential equations (SPDEs), solutions possess this low-dimensional character, they also have a strongly time-dependent form and to this end a fixed-in-time basis may not describe the solution in an efficient way. Motivated by this limitation of standard KL expansion, Sapsis and Lermusiaux (2009) [26] developed the dynamically orthogonal (DO) field equations which allow for the simultaneous evolution of both the spatial basis where uncertainty ‘lives’ but also the stochastic characteristics of uncertainty. Recently, Cheng et al. (2013) [28] introduced an alternative approach, the bi-orthogonal (BO) method, which performs the exact same tasks, i.e. it evolves the spatial basis and the stochastic characteristics of uncertainty. In the current work we examine the relation of the two approaches and we prove theoretically and illustrate numerically their equivalence, in the sense that one method is an exact reformulation of the other. We show this by deriving a linear and invertible transformation matrix described by a matrix differential equation that connects the BO and the DO solutions. We also examine a pathology of the BO equations that occurs when two eigenvalues of the solution cross, resulting in an instantaneous, infinite-speed, internal rotation of the computed spatial basis. We demonstrate that despite the instantaneous duration of the singularity this has important implications on the numerical performance of the BO approach. On the other hand, it is observed that the BO is more stable in nonlinear problems involving a relatively large number of modes. Several examples, linear and nonlinear, are presented to illustrate the DO and BO methods as well as their equivalence.

  8. Solvent Blending Strategy to Upgrade MCU CSSX Solvent to Equivalent Next-Generation CSSX Solvent

    SciTech Connect (OSTI)

    Delmau, Laetitia Helene [ORNL; Moyer, Bruce A [ORNL

    2012-12-01T23:59:59.000Z

    The results of the present study have validated an equal-volume blending strategy for upgrading freshly prepared CSSX solvent to a blended solvent functionally equivalent to NG-CSSX solvent. It is shown that blending fresh CSSX solvent as currently used in MCU with an equal volume of an NG-CSSX solvent concentrate of appropriate composition yields a blended solvent composition (46.5 mM of MaxCalix, 3.5 mM of BOBCalixC6, 0.5 M of Cs-7SB, 3 mM of guanidine suppressor, and 1.5 mM of TOA in Isopar L) that exhibits equivalent batch ESS performance to that of the NG-CSSX solvent containing 50 mM of MaxCalix, 0.5 M of Cs-7SB, and 3 mM of guanidine suppressor in Isopar L. The solvent blend composition is robust to third-phase formation. Results also show that a blend containing up to 60% v/v of CSSX solvent could be accommodated with minimal risk. Extraction and density data for the effect of solvent concentration mimicking diluent evaporation or over-dilution of the equal-volume blended solvent are also given, providing input for setting operational limits. Given that the experiments employed all pristine chemicals, the results do not qualify a blended solvent starting with actual used MCU solvent, which can be expected to have undergone some degree of degradation. Consequently, further work should be considered to evaluate this risk and implement appropriate remediation if needed.

  9. An epidermal equivalent assay for identification and ranking potency of contact sensitizers

    SciTech Connect (OSTI)

    Gibbs, Susan, E-mail: S.Gibbs@VUMC.nl [Department of Dermatology, VU University Medical Centre, Dept of Oral Cell Biology, ACTA, Amsterdam (Netherlands); Corsini, Emanuela [Laboratory of Toxicology, DiSFeB, Università degli Studi di Milano (Italy); Spiekstra, Sander W. [Department of Dermatology, VU University Medical Centre, Dept of Oral Cell Biology, ACTA, Amsterdam (Netherlands); Galbiati, Valentina [Laboratory of Toxicology, DiSFeB, Università degli Studi di Milano (Italy); Fuchs, Horst W. [CellSystems GmbH, Troisdorf (Germany); DeGeorge, George; Troese, Matthew [MB Research Labs, Spinnerstown, PA (United States); Hayden, Patrick; Deng, Wei [MatTek Corporation, Ashland, MA (United States); Roggen, Erwin [3Rs Management and Consultancy (Denmark)

    2013-10-15T23:59:59.000Z

    The purpose of this study was to explore the possibility of combining the epidermal equivalent (EE) potency assay with the assay which assesses release of interleukin-18 (IL-18) to provide a single test for identification and classification of skin sensitizing chemicals, including chemicals of low water solubility or stability. A protocol was developed using different 3D-epidermal models including in house VUMC model, epiCS® (previously EST1000™), MatTek EpiDerm™ and SkinEthic™ RHE and also the impact of different vehicles (acetone:olive oil 4:1, 1% DMSO, ethanol, water) was investigated. Following topical exposure for 24 h to 17 contact allergens and 13 non-sensitizers a robust increase in IL-18 release was observed only after exposure to contact allergens. A putative prediction model is proposed from data obtained from two laboratories yielding 95% accuracy. Correlating the in vitro EE sensitizer potency data, which assesses the chemical concentration which results in 50% cytotoxicity (EE-EC{sub 50}) with human and animal data showed a superior correlation with human DSA{sub 05} (?g/cm{sup 2}) data (Spearman r = 0.8500; P value (two-tailed) = 0.0061) compared to LLNA data (Spearman r = 0.5968; P value (two-tailed) = 0.0542). DSA{sub 05} = induction dose per skin area that produces a positive response in 5% of the tested population Also a good correlation was observed for release of IL-18 (SI-2) into culture supernatants with human DSA{sub 05} data (Spearman r = 0.8333; P value (two-tailed) = 0.0154). This easily transferable human in vitro assay appears to be very promising, but additional testing of a larger chemical set with the different EE models is required to fully evaluate the utility of this assay and to establish a definitive prediction model. - Highlights: • A potential epidermal equivalent assay to label and classify sensitizers • Il-18 release distinguishes sensitizers from non sensitizers • IL-18 release can rank sensitizer potency • EC50 (chemical concentration causing 50% decrease in cell viability) ranks potency • In vitro: human DSA{sub 05} correlation is better than in vitro: LLNA correlation.

  10. New Limits for the Violation of the Equivalence Principle in the Solar-Reactor Neutrino Sector

    E-Print Network [OSTI]

    Valdiviesso, G do A; De Holanda, P C

    2008-01-01T23:59:59.000Z

    A model for the violation of the equivalence principle (VEP) on solar and reactor neutrinos is investigated. New limits for the VEP are obtained considering the mass-flavor mixing hypothesis and the VEP model. Our analysis shows two solutions were the VEP effects practically don't change the solar sector. In a first case, the mass scale of the reactor sector remains the same and in a second situation this scale falls slightly, becoming closer to the solar solution without VEP. The combined solution points to the following set of parameters: a ``higher VEP'' $|\\phi\\Delta\\gamma|=9,12^{+0,97}_{-0,78}\\times10^{-21}$, $\\tan^2\\theta=0,478^{+0,040}_{-0,038}$ and $\\Delta m^2=6,63\\pm0,31\\times10^{-5} eV^2$ ($77,7%$ C.L.) and a ``lower VEP'' $|\\phi\\Delta\\gamma|=1,91^{+0,84}_{-0,61}\\times10^{-21}$, $\\tan^2\\theta=0,478^{+0,040}_{-0,038}$ e $\\Delta m^2=7,73^{+0,17}_{-0,20}\\times10^{-5} eV^2$ ($77,7%$ C.L.). Both solutions have increased confidence level when compared with the MSW solution ($\\tan^2\\theta=0,462^{+0,043}_{-0...

  11. Turing-equivalent automata using a fixed-size quantum memory

    E-Print Network [OSTI]

    Yakaryilmaz, Abuzer

    2012-01-01T23:59:59.000Z

    In this paper, we introduce a new public quantum interactive proof system and the first quantum alternating Turing machine: qAM proof system and qATM, respectively. Both are obtained from their classical counterparts (Arthur-Merlin proof system and alternating Turing machine, respectively,) by augmenting them with a fixed-size quantum register. We focus on space-bounded computation, and obtain the following surprising results: Both of them with constant-space are Turing-equivalent. More specifically, we show that for any Turing-recognizable language, there exists a constant-space weak-qAM system, (the nonmembers do not need to be rejected with high probability), and we show that any Turing-recognizable language can be recognized by a constant-space qATM even with one-way input head. For strong proof systems, where the nonmembers must be rejected with high probability, we show that the known space-bounded classical private protocols can also be simulated by our public qAM system with the same space bound. Besi...

  12. The Electromagnetic Quantum Gravity Theory On Quantum Inertia and the Einstein Principle of Equivalence

    E-Print Network [OSTI]

    Ostoma, T; Ostoma, Tom; Trushyk, Mike

    1999-01-01T23:59:59.000Z

    On a new approach to quantum gravity called Electro-Magnetic Quantum Gravity (EMQG) which is manifestly compatible with Cellular Automata (CA) theory and is based on a new theory of inertia (ref. 5) proposed by R. Haisch, A. Rueda, and H. Puthoff (which we modified and called Quantum Inertia). Newtonian Inertia is due to the strictly local electrical force interactions of matter with the surrounding charged virtual particles of the quantum vacuum. The sum of all the tiny electrical forces originating from each charged particle in the mass with respect to the vacuum, is the source of the total inertial force of a mass which opposes accelerated motion in Newton's law 'F = MA'. The problems and paradoxes of accelerated motion introduced in Mach's principle are solved by suggesting that the state of acceleration of the charged virtual particles of the quantum vacuum (with respect to a mass) serves as Newton's universal reference frame for the mass. Einstein's principle of equivalence of inertial and gravitational...

  13. Expanded solar-system limits on violations of the equivalence principle

    E-Print Network [OSTI]

    James Overduin; Jack Mitcham; Zoey Warecki

    2013-11-01T23:59:59.000Z

    Most attempts to unify general relativity with the standard model of particle physics predict violations of the equivalence principle associated in some way with the composition of the test masses. We test this idea by using observational uncertainties in the positions and motions of solar-system bodies to set upper limits on possible differences $\\Delta$ between the gravitational and inertial mass of each body. For suitable pairs of objects, it is possible to constrain three different linear combinations of $\\Delta$ using Kepler's third law, the migration of stable Lagrange points, and orbital polarization (the Nordtvedt effect). Limits of order $10^{-10}-10^{-6}$ on $\\Delta$ for individual bodies can then be derived from planetary and lunar ephemerides, Cassini observations of the Saturn system, and observations of Jupiter's Trojan asteroids as well as recently discovered Trojan companions around the Earth, Mars, Neptune, and Saturnian moons. These results can be combined with models for elemental abundances in each body to test for composition-dependent violations of the universality of free fall in the solar system. The resulting limits are weaker than those from laboratory experiments, but span a larger volume in composition space.

  14. Determining equivalent damage loading for full-scale wind turbine blade fatigue tests

    SciTech Connect (OSTI)

    Freebury, G.; Musial, W.

    2000-03-13T23:59:59.000Z

    This paper describes a simplified method for converting wind turbine rotor design loads into equivalent-damage, constant-amplitude loads and load ratios for both flap and lead-lag directions. It is an iterative method that was developed at the National Renewable Energy Laboratory (NREL) using Palmgren-Miner's linear damage principles. The general method is unique because it does not presume that any information about the materials or blade structural properties is precisely known. According to this method, the loads are never converted to stresses. Instead, a family of M-N curves (moment vs. cycles) is defined with reasonable boundaries for load-amplitude and slope. An optimization program iterates and converges on the constant amplitude test load and load ratio that minimizes the sensitivity to the range of M-N curves for each blade section. The authors constrained the general method to match the NedWind 25 design condition for the Standards, Measurements, and Testing (SMT) blade testing pro gram. SMT participants agreed to use the fixed S-N slope of m = 10 from the original design to produce consistent test-loads among the laboratories. Unconstrained, the general method suggests that slightly higher test loads should be used for the NedWind 25 blade design spectrum. NedWind 25 blade test loads were computed for lead-lag and flap under single-axis and two-axis loading.

  15. Test of the equivalence principle for ordinary matter falling toward dark matter

    SciTech Connect (OSTI)

    Smith, G.; Adelberger, E.G.; Heckel, B.R.; Su, Y. (Department of Physics FM-15, University of Washington, Seattle, Washington 98195 (United States))

    1993-01-11T23:59:59.000Z

    We tested the equivalence principle (EP) for Be, Cu, and Al falling toward the galactic center, and found [Delta][ital a](Be,Cu)=[minus](0.1 [plus minus]5.8)[times]10[sup [minus]12] cm/[ital s][sup 2] and [Delta][ital a](Be,Al)=(3.6[plus minus]6.9)[times]10[sup [minus]12] cm/[ital s][sup 2]. As dark matter is thought to account for (25--30)% of our galacticentric acceleration, the EP parameters for Be/Cu, or Be/Al, falling toward dark matter, are [eta](Be,Cu)=(0.0[plus minus]1.2)[times]10[sup [minus]3] and [eta](Be,Al)=(0.7[plus minus]1.4)[times]10[sup [minus]3] (1[sigma] errors). This limits any EP-violating component of our acceleration toward dark matter and provides laboratory evidence that gravitation is the only significant long-range interaction between dark and ordinary matter.

  16. Equivalent roughness height for plane bed under oscillatory flow Benoi^t Camenen a,*, Magnus Larson b

    E-Print Network [OSTI]

    US Army Corps of Engineers

    of a flat and fixed bed is given in terms of the Nikuradse roughness height (ks). For flat beds larger than for a fixed bed. This is probably caused by the increased energy dissipation in the sheetEquivalent roughness height for plane bed under oscillatory flow Benoi^t Camenen a,*, Magnus Larson

  17. Norton Collector Circuit The Norton equivalent circuit seen looking into the collector can be used to solve for the

    E-Print Network [OSTI]

    Leach Jr.,W. Marshall

    Norton Collector Circuit The Norton equivalent circuit seen looking into the collector can be used with Thévenin sources connected to its base and emitter. With the collector grounded, the col- lector current is called the short-circuit output current or ic(sc). The current source in the Norton collector circuit has

  18. A REMARK ON THE HOMOTOPY EQUIVALENCE Abstract. Being a maximal compact subgroup of SLn C, SUn is

    E-Print Network [OSTI]

    Souto, Juan

    A REMARK ON THE HOMOTOPY EQUIVALENCE SUn SLn C JUAN SOUTO Abstract. Being a maximal compact subgroup of SLn C, SUn is a deformation retract of the former group. In this note we prove that, for sufficiently large n, there is no retraction of SLn C to SUn which preserves commutativity. 1. Introduction

  19. The Possibility of Checking the Equivalence Principle in a Null Gravitational Redshift by a Two-Resonator Laser System

    E-Print Network [OSTI]

    R. A. Daishev; Z. G. Murzakhanov; A. F. Skochilov

    2008-01-04T23:59:59.000Z

    A scheme of an optical detector is proposed for checking Einsteins equivalence principle (EEP) in a null gravitational redshift experiment and for testing methods for calculating the length of a resonator in a weak variable gravitational field by recording the variations of the difference frequency of resonators caused by lunisolar variations of the geopotential in a double or a two-resonator laser system.

  20. PLANNED TESTS OF THE EQUIVALENCE PRINCIPLE WITH A CRYOGENIC TORSION E. C. Berg, W. D. Cross, and R. D. Newman

    E-Print Network [OSTI]

    Newman, Riley D.

    in the gravitational field of source masses at various ranges [2,3,4,5,6,7]. The torsion pendulum is extraordinary relative to a field source without stressing the torsion fiber. Both variants of the deflection methodPLANNED TESTS OF THE EQUIVALENCE PRINCIPLE WITH A CRYOGENIC TORSION PENDULUM E. C. Berg, W. D

  1. Theory of hydro-equivalent ignition for inertial fusion and its applications to OMEGA and the National Ignition Facility

    SciTech Connect (OSTI)

    Nora, R.; Betti, R.; Bose, A.; Woo, K. M.; Christopherson, A. R.; Meyerhofer, D. D. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Fusion Science Center, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Department of Physics and/or Mechanical Engineering, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Anderson, K. S.; Shvydky, A.; Marozas, J. A.; Collins, T. J. B.; Radha, P. B.; Hu, S. X.; Epstein, R.; Marshall, F. J.; Sangster, T. C. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); McCrory, R. L. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States); Department of Physics and/or Mechanical Engineering, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

    2014-05-15T23:59:59.000Z

    The theory of ignition for inertial confinement fusion capsules [R. Betti et al., Phys. Plasmas 17, 058102 (2010)] is used to assess the performance requirements for cryogenic implosion experiments on the Omega Laser Facility. The theory of hydrodynamic similarity is developed in both one and two dimensions and tested using multimode hydrodynamic simulations with the hydrocode DRACO [P. B. Radha et al., Phys. Plasmas 12, 032702 (2005)] of hydro-equivalent implosions (implosions with the same implosion velocity, adiabat, and laser intensity). The theory is used to scale the performance of direct-drive OMEGA implosions to the National Ignition Facility (NIF) energy scales and determine the requirements for demonstrating hydro-equivalent ignition on OMEGA. Hydro-equivalent ignition on OMEGA is represented by a cryogenic implosion that would scale to ignition on the NIF at 1.8?MJ of laser energy symmetrically illuminating the target. It is found that a reasonable combination of neutron yield and areal density for OMEGA hydro-equivalent ignition is 3 to 6?×?10{sup 13} and ?0.3?g/cm{sup 2}, respectively, depending on the level of laser imprinting. This performance has not yet been achieved on OMEGA.

  2. 14 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 43, NO. 1, JANUARY/FEBRUARY 2007 Design of Equivalent Circuits and Characterization

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . To reach this goal, accurate models of every component are needed. From these components, transformers applicable in practical situations. A transformer generally has good power efficiency, thus its equivalent system is presented and the leakage transformer concept is introduced. The obtained circuits allow easy

  3. Dye-sensitized solar cells based on a nanoparticle/nanotube bilayer structure and their equivalent circuit analysis

    E-Print Network [OSTI]

    Lin, Zhiqun

    Dye-sensitized solar cells based on a nanoparticle/nanotube bilayer structure and their equivalent 2011, Accepted 1st December 2011 DOI: 10.1039/c2nr11617k Dye-sensitized solar cells (DSSCs) were to become an essential component of future global energy production. Dye sensitized solar cells (DSSCs)1

  4. Strong quantum violation of the gravitational weak equivalence principle by a non-Gaussian wave-packet

    E-Print Network [OSTI]

    P. Chowdhury; D. Home; A. S. Majumdar; S. V. Mousavi; M. R. Mozaffari; S. Sinha

    2011-12-27T23:59:59.000Z

    The weak equivalence principle of gravity is examined at the quantum level in two ways. First, the position detection probabilities of particles described by a non-Gaussian wave-packet projected upwards against gravity around the classical turning point and also around the point of initial projection are calculated. These probabilities exhibit mass-dependence at both these points, thereby reflecting the quantum violation of the weak equivalence principle. Secondly, the mean arrival time of freely falling particles is calculated using the quantum probability current, which also turns out to be mass dependent. Such a mass-dependence is shown to be enhanced by increasing the non-Gaussianity parameter of the wave packet, thus signifying a stronger violation of the weak equivalence principle through a greater departure from Gaussianity of the initial wave packet. The mass-dependence of both the position detection probabilities and the mean arrival time vanish in the limit of large mass. Thus, compatibility between the weak equivalence principle and quantum mechanics is recovered in the macroscopic limit of the latter. A selection of Bohm trajectories is exhibited to illustrate these features in the free fall case.

  5. see 2010, January 18 -21, 2010, Siegen, Germany Paper 4 On the Equivalence of Sudan-Decoding and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    see 2010, January 18 - 21, 2010, Siegen, Germany Paper 4 On the Equivalence of Sudan schemes for Reed-Solomon codes, which allow to decode beyond half the minimum distance. One is Sudan show a syndrome-based approach of it. We compare Sudan's procedure with a scheme that is based

  6. Turing-equivalent automata using a fixed-size quantum memory

    E-Print Network [OSTI]

    Abuzer Yakaryilmaz

    2012-05-24T23:59:59.000Z

    In this paper, we introduce a new public quantum interactive proof system and the first quantum alternating Turing machine: qAM proof system and qATM, respectively. Both are obtained from their classical counterparts (Arthur-Merlin proof system and alternating Turing machine, respectively,) by augmenting them with a fixed-size quantum register. We focus on space-bounded computation, and obtain the following surprising results: Both of them with constant-space are Turing-equivalent. More specifically, we show that for any Turing-recognizable language, there exists a constant-space weak-qAM system, (the nonmembers do not need to be rejected with high probability), and we show that any Turing-recognizable language can be recognized by a constant-space qATM even with one-way input head. For strong proof systems, where the nonmembers must be rejected with high probability, we show that the known space-bounded classical private protocols can also be simulated by our public qAM system with the same space bound. Besides, we introduce a strong version of qATM: The qATM that must halt in every computation path. Then, we show that strong qATMs (similar to private ATMs) can simulate deterministic space with exponentially less space. This leads to shifting the deterministic space hierarchy exactly by one-level. The method behind the main results is a new public protocol cleverly using its fixed-size quantum register. Interestingly, the quantum part of this public protocol cannot be simulated by any space-bounded classical protocol in some cases.

  7. Equivalence between free quantum particles and those in harmonic potentials and its application to instantaneous changes

    E-Print Network [OSTI]

    Ole Steuernagel

    2014-06-17T23:59:59.000Z

    In quantum physics the free particle and the harmonically trapped particle are arguably the most important systems a physicist needs to know about. It is little known that, mathematically, they are one and the same. This knowledge helps us to understand either from the viewpoint of the other. Here we show that all general time-dependent solutions of the free-particle Schroedinger equation can be mapped to solutions of the Schroedinger equation for harmonic potentials, both the trapping oscillator and the inverted 'oscillator'. This map is fully invertible and therefore induces an isomorphism between both types of system, they are equivalent. A composition of the map and its inverse allows us to map from one harmonic oscillator to another with a different spring constant and different center position. The map is independent of the state of the system, consisting only of a coordinate transformation and multiplication by a form factor, and can be chosen such that the state is identical in both systems at one point in time. This transition point in time can be chosen freely, the wave function of the particle evolving in time in one system before the transition point can therefore be linked up smoothly with the wave function for the other system and its future evolution after the transition point. Such a cut-and-paste procedure allows us to describe the instantaneous changes of the environment a particle finds itself in. Transitions from free to trapped systems, between harmonic traps of different spring constants or center positions, or, from harmonic binding to repulsive harmonic potentials are straightforwardly modelled. This includes some time-dependent harmonic potentials. The mappings introduced here are computationally more efficient than either state-projection or harmonic oscillator propagator techniques conventionally employed when describing instantaneous (non-a 1,920 characters

  8. Package Equivalent Reactor Networks as Reduced Order Models for Use with CAPE-OPEN Compliant Simulation

    SciTech Connect (OSTI)

    Meeks, E.; Chou, C. -P.; Garratt, T.

    2013-03-31T23:59:59.000Z

    Engineering simulations of coal gasifiers are typically performed using computational fluid dynamics (CFD) software, where a 3-D representation of the gasifier equipment is used to model the fluid flow in the gasifier and source terms from the coal gasification process are captured using discrete-phase model source terms. Simulations using this approach can be very time consuming, making it difficult to imbed such models into overall system simulations for plant design and optimization. For such system-level designs, process flowsheet software is typically used, such as Aspen Plus® [1], where each component where each component is modeled using a reduced-order model. For advanced power-generation systems, such as integrated gasifier/gas-turbine combined-cycle systems (IGCC), the critical components determining overall process efficiency and emissions are usually the gasifier and combustor. Providing more accurate and more computationally efficient reduced-order models for these components, then, enables much more effective plant-level design optimization and design for control. Based on the CHEMKIN-PRO and ENERGICO software, we have developed an automated methodology for generating an advanced form of reduced-order model for gasifiers and combustors. The reducedorder model offers representation of key unit operations in flowsheet simulations, while allowing simulation that is fast enough to be used in iterative flowsheet calculations. Using high-fidelity fluiddynamics models as input, Reaction Design’s ENERGICO® [2] software can automatically extract equivalent reactor networks (ERNs) from a CFD solution. For the advanced reduced-order concept, we introduce into the ERN a much more detailed kinetics model than can be included practically in the CFD simulation. The state-of-the-art chemistry solver technology within CHEMKIN-PRO allows that to be accomplished while still maintaining a very fast model turn-around time. In this way, the ERN becomes the basis for high-fidelity kinetics simulation, while maintaining the spatial information derived from the geometrically faithful CFD model. The reduced-order models are generated in such a way that they can be easily imported into a process flowsheet simulator, using the CAPE-OPEN architecture for unit operations. The ENERGICO/CHEMKIN-PRO software produces an ERN-definition file that is read by a dynamically linked library (DLL) that can be easily linked to any CAPE-OPEN compliant software. The plug-in unitoperation module has been successfully demonstrated for complex ERNs of coal gasifiers, using both Aspen Plus and COFE process flowsheet simulators through this published CAPE-OPEN interface.

  9. 34 Jong-Seok Lee : Utilizing Concept of Vegetation Freeboard Equivalence in River Restoration International Journal of Contents, Vol.8, No.3, Sep 2012

    E-Print Network [OSTI]

    Julien, Pierre Y.

    : Vegetation Freeboard Equivalence (VFE); River Restoration; Stream Rehabilitation; Levee Design; Flood Control34 Jong-Seok Lee : Utilizing Concept of Vegetation Freeboard Equivalence in River Restoration in River Restoration Jong-Seok Lee* Department of Civil Engineering Hanbat National University, Daejeon 301

  10. arXiv:1205.6074v1[physics.bio-ph]28May2012 Mesoscale symmetries explain dynamical equivalence of food webs

    E-Print Network [OSTI]

    arXiv:1205.6074v1[physics.bio-ph]28May2012 Mesoscale symmetries explain dynamical equivalence is to identify mesoscale structures that have distinct dynamical implications. In this paper we present show that this equivalence is rooted in mesoscale symmetries that exist in these webs. Certain

  11. The Construction of Professional Identity and Pathways of Participation of Full Time Faculty Members in University Restructuring in Mexico

    E-Print Network [OSTI]

    Montero Hernandez, Virginia

    2010-01-01T23:59:59.000Z

    in Education by Virginia Montero Hernandez August 2010Natalie Becker Copyright by Virginia Montero Hernandez TheDissertation of Virginia Montero Hernandez is approved:

  12. The Construction of Professional Identity and Pathways of Participation of Full Time Faculty Members in University Restructuring in Mexico

    E-Print Network [OSTI]

    Montero Hernandez, Virginia

    2010-01-01T23:59:59.000Z

    institucional (pp. 55-145). México, D.F. : Paidós. Dill, D.Becoming a scientist in Mexico. The challenge of creating acatastrofe silenciosa. Mexico: Fondo de Cultura Económica.

  13. A Comparative Study of Sex Salary Differentials for Full-time Workers with a Degree in Science or Engineering 

    E-Print Network [OSTI]

    McKinley, Rayna L.

    2010-07-14T23:59:59.000Z

    earn 18.5% less, women with master?s degrees earn 18.7% less, and women with doctoral degrees earn 15.3% less than their male counterparts. Additionally, in the NSCG and the SEI the field of degree impacted the sex effects the most for bachelor...

  14. Evaluation of Radiometers in Full-Time Use at the National Renewable Energy Laboratory Solar Radiation Research Laboratory

    SciTech Connect (OSTI)

    Wilcox, S. M.; Myers, D. R.

    2008-12-01T23:59:59.000Z

    This report describes the evaluation of the relative performance of the complement of solar radiometers deployed at the National Renewable Energy Laboratory (NREL) Solar Radiation Research Laboratory (SRRL).

  15. Job Posting-Jan 7, 2014, 4:38:58 PM Job Type-Full time permanent

    E-Print Network [OSTI]

    New Hampshire, University of

    · Robotics & Vision Systems· 6 Sigma, Lean, TPM· Advanced computer skills in Excel, Minitab, Infinity, SAP automated systems. They will be actively involved in all aspects of the many automated processes used to produce ceramic components for use in lighting products. Some projects will require working independently

  16. Emeritus Status Any tenured full-time faculty member, Special Faculty, SAAO Tier I or II who has

    E-Print Network [OSTI]

    Buckel, Jeffrey A.

    the purchase of an "R" permit if you are no longer working for the University. For additional information employees of the State of North Carolina. Their Living Power newsletter keeps you well informed on matters Retirees may also purchase or retain gym membership privileges. http://recreation.ncsu.edu/memberships/purchase

  17. Division of Clinical and Laboratory Investigation / Clinical Imagine Sciences Centre Research / Senior Radiographer Grade 7 (full time, permanent post)

    E-Print Network [OSTI]

    Jensen, Max

    Ref: 309 Division of Clinical and Laboratory Investigation / Clinical Imagine Sciences Centre provides an ideal opportunity to be involved in research and clinical MRI and PETCT at the Clinical Imaging and clinical trials. We also provide clinical services for PETCT and MRI memory assessment. You

  18. The Construction of Professional Identity and Pathways of Participation of Full Time Faculty Members in University Restructuring in Mexico

    E-Print Network [OSTI]

    Montero Hernandez, Virginia

    2010-01-01T23:59:59.000Z

    Younger academics' constructions of professional identity.staff development and the construction of interdisciplinaryDuree to everyday co-construction. Human Development, 42(3),

  19. The Department of Geology at Wayne State University consists of five full-time faculty and five

    E-Print Network [OSTI]

    VandeVord, Pamela

    (Geochemistry and Geophysics), Jeffrey Howard (Sedimentology), Larry Lemke (Hydrogeology), and Ed van Hees conduct research in the general areas of Sedimentology, Stratigraphy, Soil Science, Hydrogeology

  20. The Department of Geology at Wayne State University consists of five full-time faculty and five

    E-Print Network [OSTI]

    Baskaran, Mark

    (Geochemistry and Geophysics), Jeffrey Howard (Sedimentology), Larry Lemke (Hydrogeology), and Ed van Hees faculty are conducting research in the general areas of Sedimentology, Stratigraphy, Soil Science

  1. The NASA Astrophysics Data System: Overview

    E-Print Network [OSTI]

    M. J. Kurtz; G. Eichhorn; A. Accomazzi; C. Grant; S. S. Murray; J. M. Watson

    2000-02-04T23:59:59.000Z

    The NASA Astrophysics Data System Abstract Service has become a key component of astronomical research. It provides bibliographic information daily, or near daily, to a majority of astronomical researchers worldwide. We describe the history of the development of the system and its current status. We show several examples of how to use the ADS, and we show how ADS use has increased as a function of time. Currently it is still increasing exponentially, with a doubling time for number of queries of 17 months. Using the ADS logs we make the first detailed model of how scientific journals are read as a function of time since publication. The impact of the ADS on astronomy can be calculated after making some simple assumptions. We find that the ADS increases the efficiency of astronomical research by 333 Full Time Equivalent (2000 hour) research years per year, and that the value of the early development of the ADS for astronomy, compared with waiting for mature technologies to be adopted, is 2332 FTE research years. The ADS is available at http://adswww.harvard.edu/.

  2. The combination of de Broglie's Harmony of the Phases and Mie's theory of gravity results in a Principle of Equivalence for Quantum Gravity

    E-Print Network [OSTI]

    E. P. J. de Haas

    2005-07-21T23:59:59.000Z

    Under a Lorentz-transformation, Mie's 1912 gravitational mass behaves identical as de Broglie's 1923 clock-like frequency. The same goes for Mie's inertial mass and de Broglie's wave-like frequency. This allows the interpretation of de Broglie's "Harmony of the Phases" as a "Principle of Equivalence" for Quantum Gravity. Thus, the particle-wave duality can be given a realist interpretation. The "Mie-de Broglie" interpretation suggests a correction of Hamilton's variational principle in the quantum domain. The equivalence of the masses can be seen as the classical "limit" of the quantum equivalence of the phases.

  3. On equivalence of high temperature series expansion and coupling parameter series expansion in thermodynamic perturbation theory of fluids

    SciTech Connect (OSTI)

    Sai Venkata Ramana, A., E-mail: asaivenk@barc.gov.in [Theoretical Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)

    2014-04-21T23:59:59.000Z

    The coupling parameter series expansion and the high temperature series expansion in the thermodynamic perturbation theory of fluids are shown to be equivalent if the interaction potential is pairwise additive. As a consequence, for the class of fluids with the potential having a hardcore repulsion, if the hard-sphere fluid is chosen as reference system, the terms of coupling parameter series expansion for radial distribution function, direct correlation function, and Helmholtz free energy follow a scaling law with temperature. The scaling law is confirmed by application to square-well fluids.

  4. Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?

    E-Print Network [OSTI]

    Ido Kanter; Aviad Frydman; Assaf Ater

    2004-05-16T23:59:59.000Z

    Recent technological advances have enabled to isolate, control and measure the properties of a single atom, leading to the possibility to perform statistics on the behavior of single quantum systems. These experiments have enabled to check a question which was out of reach previously: Is the statistics of a repeatedly excitation of an atom N times equivalent to a single excitation of an ensemble of N atoms? We present a new method to analyze quantum measurements which leads to the postulation that the answer is most probably no. We discuss the merits of the analysis and its conclusion.

  5. Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?

    E-Print Network [OSTI]

    Kanter, I; Ater, A; Kanter, Ido; Frydman, Aviad; Ater, Assaf

    2004-01-01T23:59:59.000Z

    Recent technological advances have enabled to isolate, control and measure the properties of a single atom, leading to the possibility to perform statistics on the behavior of single quantum systems. These experiments have enabled to check a question which was out of reach previously: Is the statistics of a repeatedly excitation of an atom N times equivalent to a single excitation of an ensemble of N atoms? We present a new method to analyze quantum measurements which leads to the postulation that the answer is most probably no. We discuss the merits of the analysis and its conclusion.

  6. Improving the hot-spot pressure and demonstrating ignition hydrodynamic equivalence in cryogenic deuterium–tritium implosions on OMEGA

    SciTech Connect (OSTI)

    Goncharov, V. N.; Sangster, T. C.; Betti, R.; Boehly, T. R.; Bonino, M. J.; Collins, T. J. B.; Craxton, R. S.; Delettrez, J. A.; Edgell, D. H.; Epstein, R.; Follett, R. K.; Forrest, C. J.; Froula, D. H.; Glebov, V. Yu.; Harding, D. R.; Henchen, R. J.; Hu, S. X.; Igumenshchev, I. V.; Janezic, R.; Kelly, J. H. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States); and others

    2014-05-15T23:59:59.000Z

    Reaching ignition in direct-drive (DD) inertial confinement fusion implosions requires achieving central pressures in excess of 100 Gbar. The OMEGA laser system [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] is used to study the physics of implosions that are hydrodynamically equivalent to the ignition designs on the National Ignition Facility (NIF) [J. A. Paisner et al., Laser Focus World 30, 75 (1994)]. It is shown that the highest hot-spot pressures (up to 40 Gbar) are achieved in target designs with a fuel adiabat of ? ? 4, an implosion velocity of 3.8?×?10{sup 7}?cm/s, and a laser intensity of ?10{sup 15}?W/cm{sup 2}. These moderate-adiabat implosions are well understood using two-dimensional hydrocode simulations. The performance of lower-adiabat implosions is significantly degraded relative to code predictions, a common feature between DD implosions on OMEGA and indirect-drive cryogenic implosions on the NIF. Simplified theoretical models are developed to gain physical understanding of the implosion dynamics that dictate the target performance. These models indicate that degradations in the shell density and integrity (caused by hydrodynamic instabilities during the target acceleration) coupled with hydrodynamics at stagnation are the main failure mechanisms in low-adiabat designs. To demonstrate ignition hydrodynamic equivalence in cryogenic implosions on OMEGA, the target-design robustness to hydrodynamic instability growth must be improved by reducing laser-coupling losses caused by cross beam energy transfer.

  7. Equivalent Circuit Description of Non-compensated n-p Codoped TiO2 as Intermediate Band Solar Cells

    E-Print Network [OSTI]

    Tian-Li Feng; Guang-Wei Deng; Yi Xia; Feng-Cheng Wu; Ping Cui; Hai-Ping Lan; Zhen-Yu Zhang

    2010-12-09T23:59:59.000Z

    The novel concept of non-compensated n-p codoping has made it possible to create tunable intermediate bands in the intrinsic band gap of TiO2, making the codoped TiO2 a promising material for developing intermediate band solar cells (IBSCs). Here we investigate the quantum efficiency of such IBSCs within two scenarios - with and without current extracted from the extended intermediate band. Using the ideal equivalent circuit model, we find that the maximum efficiency of 57% in the first scenario and 53% in the second are both much higher than the Shockley-Queisser limit from single gap solar cells. We also obtain various key quantities of the circuits, a useful step in realistic development of TiO2 based solar cells invoking device integration. These equivalent circuit results are also compared with the efficiencies obtained directly from consideration of electron transition between the energy bands, and both approaches reveal the intriguing existence of double peaks in the maximum quantum efficiency as a function of the relative location of IBs.

  8. Equivalent Circuit Description of Non-compensated n-p Codoped TiO2 as Intermediate Band Solar Cells

    E-Print Network [OSTI]

    Feng, Tian-Li; Xia, Yi; Wu, Feng-Cheng; Cui, Ping; Lan, Hai-Ping; Zhang, Zhen-Yu

    2010-01-01T23:59:59.000Z

    The novel concept of non-compensated n-p codoping has made it possible to create tunable intermediate bands in the intrinsic band gap of TiO2, making the codoped TiO2 a promising material for developing intermediate band solar cells (IBSCs). Here we investigate the quantum efficiency of such IBSCs within two scenarios - with and without current extracted from the extended intermediate band. Using the ideal equivalent circuit model, we find that the maximum efficiency of 57% in the first scenario and 53% in the second are both much higher than the Shockley-Queisser limit from single gap solar cells. We also obtain various key quantities of the circuits, a useful step in realistic development of TiO2 based solar cells invoking device integration. These equivalent circuit results are also compared with the efficiencies obtained directly from consideration of electron transition between the energy bands, and both approaches reveal the intriguing existence of double peaks in the maximum quantum efficiency as a fun...

  9. Matrix analysis applied to the equivalent circuits of ?, †, and o-components of three-phase systems

    E-Print Network [OSTI]

    Kuo, Marshall Chuan Yung

    1958-01-01T23:59:59.000Z

    . THE EQUIVALENT CIRCUIT OF d, (5, AND 0 COMPONENTS FOR THE SYSTEMS SHOWN IN FIG. I (a) In Fig. I (a) E, E ~ and E are three balanced terminal voltages a' b' c and the irnpedances Z represents the balanced impedance of a load to which power is delivered. 1... in the following: 0 I I I 0 Ig e 0 j j I 0 0 I (34) I 0 0 I I~ 0 I e I I j 0 I() r I I -lj 0 IO 2 2 (35) D. APPARENT POW'ER QUANTITIES IN TERhfS OF SEQUENCE QUANTITIES The apparent power on the three phases may be expressed as V = Pr + jQq 3( V I + V...

  10. Method to determine the position-dependant metal correction factor for dose-rate equivalent laser testing of semiconductor devices

    DOE Patents [OSTI]

    Horn, Kevin M.

    2013-07-09T23:59:59.000Z

    A method reconstructs the charge collection from regions beneath opaque metallization of a semiconductor device, as determined from focused laser charge collection response images, and thereby derives a dose-rate dependent correction factor for subsequent broad-area, dose-rate equivalent, laser measurements. The position- and dose-rate dependencies of the charge-collection magnitude of the device are determined empirically and can be combined with a digital reconstruction methodology to derive an accurate metal-correction factor that permits subsequent absolute dose-rate response measurements to be derived from laser measurements alone. Broad-area laser dose-rate testing can thereby be used to accurately determine the peak transient current, dose-rate response of semiconductor devices to penetrating electron, gamma- and x-ray irradiation.

  11. Test of Equivalence Principle at $10^{-8}$ Level by a Dual-species Double-diffraction Raman Atom Interferometer

    E-Print Network [OSTI]

    Zhou, Lin; Tang, Biao; Chen, Xi; Gao, Fen; Peng, Wencui; Duan, Weitao; Zhong, Jiaqi; Xiong, Zongyuan; Wang, Jin; Zhang, Yuanzhong; Zhan, Mingsheng

    2015-01-01T23:59:59.000Z

    We report an improved test of the weak equivalence principle by using a simultaneous $^{85}$Rb-$^{87}$Rb dual-species atom interferometer. We propose and implement a four-wave double-diffraction Raman transition scheme for the interferometer, and demonstrate its ability in suppressing common-mode phase noise of Raman lasers after their frequencies and intensity ratios are optimized. The statistical uncertainty of the experimental data for E\\"{o}tv\\"{o}s parameter $\\eta$ is $0.8\\times10^{-8}$ at 3200 s. With various systematic errors corrected the final value is $\\eta=(2.8\\pm3.0)\\times10^{-8}$. The major uncertainty is attributed to the Coriolis effect.

  12. A measurement of the muon-induced neutron yield in lead at a depth of 2850 m water equivalent

    SciTech Connect (OSTI)

    Reichhart, L.; Ghag, C. [School of Physics and Astronomy, SUPA University of Edinburgh, UK and High Energy Physics Group, Department of Physics and Astronomy, University College London (United Kingdom)] [School of Physics and Astronomy, SUPA University of Edinburgh, UK and High Energy Physics Group, Department of Physics and Astronomy, University College London (United Kingdom); Lindote, A.; Chepel, V.; DeViveiros, L.; Lopes, M. I.; Neves, F.; Pinto da Cunha, J.; Silva, C.; Solovov, V. N. [LIP-Coimbra and Department of Physics of the University of Coimbra (Portugal)] [LIP-Coimbra and Department of Physics of the University of Coimbra (Portugal); Akimov, D. Yu.; Belov, V. A.; Burenkov, A. A.; Kobyakin, A. S.; Kovalenko, A. G.; Stekhanov, V. N. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)] [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Araújo, H. M.; Bewick, A.; Currie, A.; Horn, M. [High Energy Physics Group, Blackett Laboratory, Imperial College London (United Kingdom)] [High Energy Physics Group, Blackett Laboratory, Imperial College London (United Kingdom); and others

    2013-08-08T23:59:59.000Z

    We present results from the measurement of the neutron production rate in lead by high energy cosmic-ray muons at a depth of 2850 m water equivalent (mean muon energy of 260 GeV). A tonne-scale highly segmented plastic scintillator detector was utilised to detect both the energy depositions from the traversing muons as well as the delayed radiative capture signals of the induced neutrons. Complementary Monte Carlo simulations reproduce well the distributions of muons and detected muon-induced neutrons. Absolute agreement between simulation and data is of the order of 25%. By comparing the measured and simulated neutron capture rates a neutron yield in pure lead of (5.78{sub ?0.28}{sup +0.21})×10{sup ?3} neutrons/muon/(g/cm{sup 2}) has been obtained.

  13. SU-E-T-130: Dosimetric Evaluation of Tissue Equivalent Gel Dosimeter Using Saccharide in Radiotherapy System

    SciTech Connect (OSTI)

    Cho, Y [Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul (Korea, Republic of); Lee, D; Jung, H; Ji, Y; Kim, K; Chang, U [Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Kwon, S [Kyonggi University, Suwon-si, Gyeonggi-do (Korea, Republic of)

    2014-06-01T23:59:59.000Z

    Purpose: In this study, the dose responses of the MAGIC gel with various concentrations and type of saccharide are examined to clarify the roles of mono and disaccharide in the polymerization process. Then we focused on the tissue equivalence and dose sensitivity of MAGIC gel dosimeters. Methods: The gel is composed of HPLC, 8% gelatin, 2 × 10-3 M L-ascorbic acid, 1.8 × 10-2 M hydroquinone, 8 × 10-5 M copper(II)sulfate and 9% methacrylic acid, new polymer gels are synthesized by adding glucose(monosaccharide), sucrose(disaccharide) and urea in the concentration range of 5?35%. For irradiation of the gel, cesium-137 gamma-ray irradiator was used, radiation dose was delivered from 5?50 Gy. MRI images of the gel were acquired by using a 3.0 T MRI system. Results: When saccharide and urea were added, the O/C, O/N and C/N ratios agreed with those of soft tissue with 1.7%. The dose-response of glucose and sucrose gel have slope-to-intercept ratio of 0.044 and 0.283 respectively. The slope-to-ratio is one important determinant of gel sensitivity. R-square values of glucose and sucrose gel dosimeters were 0.984 and 0.994 respectively. Moreover when urea were added, the slope-to-intercept ratio is 0.044 and 0.073 respectively. R-square values of mono and disaccharide gel were 0.973 and 0.989 respectively. When a saccharide is added into the MAGIC gel dosimeter, dose sensitivity is increased. However when urea were added, dose sensitivity is slightly decreased. Conclusion: In this study, it was possible to obtain the following conclusions by looking at the dose response characteristics after adding mono-, di-saccharide and urea to a MAGIC gel dosimeter. Saccharide was a tendency of increasing dose sensitivity with disaccharide. Sa.ccharide is cost effective, safe, soft tissue equivalent, and can be used under various experimental conditions, making it a suitable dosimeter for some radiotherapy applications.

  14. References an equivalence

    E-Print Network [OSTI]

    Sumii, Eijiro

    bet ween CPS and direct st e # p CPS ~ pS t et c #12; The "Fundamental Pro perty"o f o al elato n class channels a e essential in p calculus #12; A Useo f First ss e s ie t er er ste new e n e e n en

  15. Equivalence of effective superpotentials

    SciTech Connect (OSTI)

    Argurio, Riccardo [Physique Theorique et Mathematique and International Solvay Institutes, Universite Libre de Bruxelles, C.P. 231, 1050 Brussels (Belgium)

    2004-09-01T23:59:59.000Z

    We show that the low-energy effective superpotential of an N=1 U(N) gauge theory with matter in the adjoint and arbitrary even tree-level superpotential has, in the classically unbroken case, the same functional form as the effective superpotential of a U(N) gauge theory with matter in the fundamental and the same tree-level interactions, up to some rescalings of the couplings. We also argue that the same kind of reasoning can be applied to other cases as well.

  16. NGPL Production, Gaseous Equivalent

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade1 Source: Office of FossilFoot) Year

  17. NGPL Production, Gaseous Equivalent

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5 Tables July 1996 Energy Information Administration Office of Coal,CubicWithdrawals6,992 (MillionCommercialYear50 42 74 59 9593 2.316

  18. NGPL Production, Gaseous Equivalent

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal StocksProvedFeet) Year Jan Feb Mar AprWyomingThousand894NGPL Production,

  19. X-Ray Reflection Nebulae with Large Equivalent Widths of Neutral Iron Ka Line in the Sgr C Region

    E-Print Network [OSTI]

    Hiroshi Nakajima; Takeshi Go Tsuru; Masayoshi Nobukawa; Hironori Matsumoto; Katsuji Koyama; Hiroshi Murakami; Atsushi Senda; Shigeo Yamauchi

    2008-11-12T23:59:59.000Z

    This paper reports on the first results of the Suzaku observation in the Sgr C region. We detected four diffuse clumps with strong line emission at 6.4keV, Ka from neutral or low-ionized Fe. One of them, M359.38-0.00, is newly discovered with Suzaku. The X-ray spectra of the two bright clumps, M359.43-0.07 and M359.47-0.15, after subtracting the Galactic center diffuse X-ray emission (GCDX), exhibit strong Ka line from FeI with large equivalent widths (EWs) of 2.0-2.2keV and clear Kb of FeI. The GCDX in the Sgr C region is composed of the 6.4keV- and 6.7keV-associated components. These are phenomenologically decomposed by taking relations between EWs of the 6.4keV and 6.7keV lines. Then the former EWs against the associated continuum in the bright clump regions are estimated to be 2.4(+2.3_-0.7)keV. Since the two different approaches give similar large EWs of 2keV, we strongly suggest that the 6.4keV clumps in the Sgr C region are due to X-ray reflection/fluorescence (the X-ray reflection nebulae).

  20. On the equivalent width of the Fe K$\\alpha$ line produced by a dusty absorber in active galactic nuclei

    E-Print Network [OSTI]

    Gohil, Raj

    2015-01-01T23:59:59.000Z

    Obscured AGNs provide an opportunity to study the material surrounding the central engine. Geometric and physical constraints on the absorber can be deduced from the reprocessed AGN emission. In particular, the obscuring gas may reprocess the nuclear X-ray emission producing a narrow Fe K$\\alpha$ line and a Compton reflection hump. In recent years, models of the X-ray reflection from an obscuring torus have been computed; however, although the reflecting gas may be dusty, the models do not yet take into account the effects of dust on the predicted spectrum. We study this problem by analyzing two sets of models, with and without the presence of dust, using the one dimensional photo-ionization code Cloudy. The calculations are performed for a range of column densities ($22 hydrogen densities ( $6 <{\\rm log}[n_H(\\rm cm^{-3})]< 8$). The calculations show the presence of dust can enhance the Fe K$\\alpha$ equivalent width (EW) in the reflected spectrum by factor...

  1. Parsing ERK Activation Reveals Quantitatively Equivalent Contributions From Epidermal Growth Factor Receptor and HER2 In Human Mammary Epithelial Cells

    SciTech Connect (OSTI)

    Hendriks, Bart S.; Orr, Galya; Wells, Alan H.; Wiley, H. S.; Lauffenburger, Douglas A.

    2005-02-18T23:59:59.000Z

    HER2, a member of the EGFR tyrosine kinase family, functions as an accessory EGFR signaling component and alters EGFR trafficking by heterodimerization. HER2 overexpression leads to aberrant cell behavior including enhanced proliferation and motility. Here we apply a combination of computational modeling and quantitative experimental studies of the dynamic interactions between EGFR and HER2, and their downstream activation of extracellular signal-related kinase (ERK) to understand this complex signaling system. Using cells expressing different levels of HER2 relative to the EGFR, we can separate relative contributions of EGFR and HER2 to signaling amplitude and duration. Based on our model calculations, we demonstrate that, in contrast with previous suggestions in the literature, the intrinsic capabilities of EGFR and HER2 to activated ERK are quantitatively equivalent . We find that HER2-mediated effects on EGFR dimerization and trafficking are sufficient to explain the detected HER2-mediated amplification of EGF-induced ERK signaling. Our model suggests that transient amplification of ERK activity by HER2 arises predominantly from the 2-to-1 stoichiometry of receptor kinase to bound ligand in EGFR/HER2 heterodimers compared to the 1-to-1 stoichiometry of the EGFR homodimer, but alterations in receptor trafficking, with resultant EGFR sparing, cause the sustained HER2-mediated enhancement of ERK signaling.

  2. Analysis of the quantum-mechanical equivalence of the metrics of a centrally symmetric uncharged gravitational field

    E-Print Network [OSTI]

    M. V. Gorbatenko; V. P. Neznamov

    2014-11-08T23:59:59.000Z

    In the paper we analyze the quantum-mechanical equivalence of the metrics of a centrally symmetric uncharged gravitational field. We consider the Schwarzschild metrics in the spherical, isotropic and harmonic coordinates, and the Eddington-Finkelstein, Painleve-Gullstrand, Lemaitre-Finkelstein, Kruskal metrics. The scope of the analysis includes domains of the wave functions of Dirac's equation, hermiticity of Hamiltonians, and the possibility of existence of stationary bound states of spin-half particles. The constraint on the domain of the wave functions of the Hamiltonian in a Schwarzschild field in spherical coordinates (r > r_{0}) resulting from the fulfillment of Hilbert's condition g_{00} > 0 also holds in other coordinates for all the metrics considered. The self-adjoint Hamiltonians for the Schwarzschild metrics in the spherical, isotropic and harmonic coordinates and also for the Eddington-Finkelstein and Painleve-Gullstrand metrics are Hermitian, and for them the existence of stationary bound states of spin-half particles is possible. The self-adjoint Hamiltonians for non-stationary Lemaitre-Finkelstein and Kruskal metrics have the explicit dependence on the temporal coordinates and stationary bound states of spin-half particles cannot be defined for these Hamiltonians. The results of this study can be useful when addressing the issues related to the evolution of the universe and interaction of collapsars with surrounding matter.

  3. Deficiency of large equivalent width Lyman-alpha emission in luminous Lyman break galaxies at z~5-6?

    E-Print Network [OSTI]

    Masataka Ando; Kouji Ohta; Ikuru Iwata; Masayuki Akiyama; Kentaro Aoki; Naoyuki Tamura

    2006-06-28T23:59:59.000Z

    We report a deficiency of luminous Lyman break galaxies (LBGs) with a large rest-frame equivalent width (EW_rest) of Lyman-alpha emission at z~5-6. Combining our spectroscopic sample of LBGs at z~5 and those from the literature, we found that luminous LBGs at z~5-6 generally show weak Lyman-alpha emissions, while faint LBGs show a wide range of Lyman-alpha EW_rest and tend to have strong (EW_rest >20A) Lyman-alpha emissions; i.e., there is a deficiency of strong Lyman-alpha emission in luminous LBGs. There seems to be a threshold UV luminosity for the deficiency; it is M_1400 = -21.5 \\~ -21.0 mag, which is close to or somewhat brighter than the M* of the UV luminosity function at z~5 and 6. Since the large EW_rest of Lyman-alpha emission can be seen among the faint LBGs, the fraction of Lyman-alpha emitters in LBGs may change rather abruptly with the UV luminosity. If the weakness of Lyman-alpha emission is due to dust absorption, the deficiency suggests that luminous LBGs at z=5-6 tend to be in dusty and more chemically evolved environments and started star formation earlier than faint ones, though other causes cannot be ruled out.

  4. Equivalence Ratio-EGR Control of HCCI Engine Operation and the Potential for Transition to Spark-Ignited Operation

    SciTech Connect (OSTI)

    Martinez-Frias, J; Aceves, S M; Flowers, D L; Smith, J R; Dibble, R

    2001-07-31T23:59:59.000Z

    This research investigates a control system for HCCI engines, where equivalence ratio, fraction of EGR and intake pressure are adjusted as needed to obtain satisfactory combustion. HCCI engine operation is analyzed with a detailed chemical kinetics code, HCT (Hydrodynamics, Chemistry and Transport), that has been extensively modified for application to engines. HCT is linked to an optimizer that determines the operating conditions that result in maximum brake thermal efficiency, while meeting the peak cylinder pressure restriction. The results show the values of the operating conditions that yield optimum efficiency as a function of torque and rpm. The engine has high NO{sub x} emissions for high power operation, so the possibility of switching to stoichiometric operation for high torque conditions is considered. Stoichiometric operation would allow the use of a three-way catalyst to reduce NO{sub x} emissions to acceptable levels. Finally, the paper discusses the possibility of transitioning from HCCI operation to SI operation to achieve high power output.

  5. Development of an equivalent homogenous fluid model for pseudo-two-phase (air plus water) flow through fractured rock

    SciTech Connect (OSTI)

    Price, J.; Indraratna, B. [University of Wollongong, Wollongong, NSW (Australia). School of Civil Engineering

    2005-07-01T23:59:59.000Z

    Fracture flow of two-phase mixtures is particularly applicable to the coal mining and coal bed methane projects in Australia. A one-dimensional steady-state pseudo-two-phase flow model is proposed for fractured rock. The model considers free flow of a compressible mixture of air and water in an inclined planar fracture and is based upon the conservation of momentum and the 'cubic' law. The flow model is coupled to changes in the stress environment through the fracture normal stiffness, which is related to changes in fracture aperture. The model represents the individual air and water phases as a single equivalent homogenous fluid. Laboratory testing was performed using the two-phase high-pressure triaxial apparatus on 54 mm diameter (approximately 2: 1 height: diameter) borehole cores intersected by induced near-axial fractures. The samples were of Triassic arenaceous fine-medium grained sandstone (known as the Eckersley Formation) that is found locally in the Southern Coalfield of New South Wales. The sample fracture roughness was assessed using a technique based upon Fourier series analysis to objectively attribute a joint roughness coefficient. The proposed two-phase flow model was verified using the recorded laboratory data obtained over a range of triaxial confining pressures (i.e., fracture normal stresses).

  6. Probing New Limits for the Violation of the Equivalence Principle in the solar-reactor neutrino sector as a next to leading order effect

    E-Print Network [OSTI]

    G. A. Valdiviesso; M. M. Guzzo; P. C. Holanda

    2013-12-06T23:59:59.000Z

    New limits for the Violation of Equivalence Principle (VEP) are obtained considering the mass-flavor mixing hypothesis. This analysis includes observations of solar and reactor neutrinos and has obtained a limit for the VEP parameter $|\\Delta \\gamma|$ contributing to the $\

  7. Expression of proliferative and inflammatory markers in a full-thickness human skin equivalent following exposure to the model sulfur mustard vesicant, 2-chloroethyl ethyl sulfide

    SciTech Connect (OSTI)

    Black, Adrienne T. [Pharmacology and Toxicology, Rutgers University, Piscataway, NJ (United States); Hayden, Patrick J. [MatTek Corporation, Ashland, MA (United States); Casillas, Robert P. [Battelle Memorial Institute, Columbus, OH (United States); Heck, Diane E. [Environmental Health Sciences, New York Medical College, Valhalla, NY (United States); Gerecke, Donald R. [Pharmacology and Toxicology, Rutgers University, Piscataway, NJ (United States); Sinko, Patrick J. [Pharmaceutics, Rutgers University, Piscataway, NJ (United States); Laskin, Debra L. [Pharmacology and Toxicology, Rutgers University, Piscataway, NJ (United States); Laskin, Jeffrey D., E-mail: jlaskin@eohsi.rutgers.ed [Environmental and Occupational Medicine, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ (United States)

    2010-12-01T23:59:59.000Z

    Sulfur mustard is a potent vesicant that induces inflammation, edema and blistering following dermal exposure. To assess molecular mechanisms mediating these responses, we analyzed the effects of the model sulfur mustard vesicant, 2-chloroethyl ethyl sulfide, on EpiDerm-FT{sup TM}, a commercially available full-thickness human skin equivalent. CEES (100-1000 {mu}M) caused a concentration-dependent increase in pyknotic nuclei and vacuolization in basal keratinocytes; at high concentrations (300-1000 {mu}M), CEES also disrupted keratin filament architecture in the stratum corneum. This was associated with time-dependent increases in expression of proliferating cell nuclear antigen, a marker of cell proliferation, and poly(ADP-ribose) polymerase (PARP) and phosphorylated histone H2AX, markers of DNA damage. Concentration- and time-dependent increases in mRNA and protein expression of eicosanoid biosynthetic enzymes including COX-2, 5-lipoxygenase, microsomal PGE{sub 2} synthases, leukotriene (LT) A{sub 4} hydrolase and LTC{sub 4} synthase were observed in CEES-treated skin equivalents, as well as in antioxidant enzymes, glutathione S-transferases A1-2 (GSTA1-2), GSTA3 and GSTA4. These data demonstrate that CEES induces rapid cellular damage, cytotoxicity and inflammation in full-thickness skin equivalents. These effects are similar to human responses to vesicants in vivo and suggest that the full thickness skin equivalent is a useful in vitro model to characterize the biological effects of mustards and to develop potential therapeutics.

  8. Radiation protection instrumentation - ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation part 2: high range beta and photon dose and dose rate portable instruments for emergency radiation protection purposes

    E-Print Network [OSTI]

    International Electrotechnical Commission. Geneva

    2007-01-01T23:59:59.000Z

    Radiation protection instrumentation - ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation

  9. Gauge Fixing in the Maxwell Like Gravitational Theory in Minkowski Spacetime and in the Equivalent Lorentzian Spacetime

    E-Print Network [OSTI]

    Roldao da Rocha; Waldyr A. Rodrigues Jr

    2014-12-12T23:59:59.000Z

    In a previous paper we investigate a Lagrangian field theory for the gravitational field (which is there represented by a section g^a of the orthonormal coframe bundle over Minkowski spacetime. Such theory, under appropriate conditions, has been proved to be equivalent to a Lorentzian spacetime structure, where the metric tensor satisfies Einstein field equations. Here, we first recall that according to quantum field theory ideas gravitation is described by a Lagrangian theory of a possible massive graviton field (generated by matter fields and coupling also to itself) living in Minkowski spacetime. The graviton field is moreover supposed to be represented by a symmetric tensor field h carrying the representations of spin two and zero of the Lorentz group. Such a field, then (as it is well known), must necessarily satisfy the gauge condition given by Eq.(3) below. Next, we introduce an ansatz relating h to the 1-form fields g^a. Then, using the Clifford bundle formalism we derive, from our Lagrangian theory, the exact wave equation for the graviton and investigate the role of the gauge condition given by Eq.(3) in obtaining a reliable conservation law for the energy-momentum tensor of the gravitational plus the matter fields in Minkowski spacetime. Finally we ask the question: does Eq.(3) fix any gauge condition for the field g of the effective Lorentzian spacetime structure that represents the field h in our theory? We show that no gauge condition is fixed a priory, as is the case in General Relativity. Moreover we investigate under which conditions we may fix Logunov gauge condition.

  10. Consideration of gravitational time delay and limitation of equivalence principle of inert and gravitational masses erases the problem of dark matter

    E-Print Network [OSTI]

    Mikhail A. Samokhvalov

    2014-04-01T23:59:59.000Z

    The work is based on the equation of relativistic dynamics, the law of mass conservation of material body moving in gravitational field and the influence of gravitation on time passage discovered by Einstein. The formulae describing changes of inert and gravitational masses of material body were found. A new formula for the power of gravitational interaction of material bodies was derived. Newtons formula was shown to be the approximation of the new formula. It was determined that the equivalence principle of inert and gravitational masses is not universal. This principle is true with definite accuracy within the Solar system, when the sum of kinetic and potential energies of a material body is equal to zero. Limitation of the equivalence principle of inert and gravitational masses for galactic star systems erases the problem of dark matter.

  11. Test of Einstein Equivalence Principle for 0-spin and half-integer-spin atoms: Search for spin-gravity coupling effects

    E-Print Network [OSTI]

    M. G. Tarallo; T. Mazzoni; N. Poli; D. V. Sutyrin; X. Zhang; G. M. Tino

    2014-06-23T23:59:59.000Z

    We report on a conceptually new test of the equivalence principle performed by measuring the acceleration in Earth's gravity field of two isotopes of strontium atoms, namely, the bosonic $^{88}$Sr isotope which has no spin vs the fermionic $^{87}$Sr isotope which has a half-integer spin. The effect of gravity upon the two atomic species has been probed by means of a precision differential measurement of the Bloch frequency for the two atomic matter waves in a vertical optical lattice. We obtain the values $\\eta = (0.2\\pm 1.6)\\times10^{-7}$ for the E\\"otv\\"os parameter and $k=(0.5\\pm1.1)\\times10^{-7}$ for the coupling between nuclear spin and gravity. This is the first reported experimental test of the equivalence principle for bosonic and fermionic particles and opens a new way to the search for the predicted spin-gravity coupling effects.

  12. Does the Quantum Vacuum Fall Near the Earth? The Downward Acceleration of the Quantum Vacuum is Responsible for the Equivalence Principle

    E-Print Network [OSTI]

    Ostoma, T; Ostoma, Tom; Trushyk, Mike

    1999-01-01T23:59:59.000Z

    The downward acceleration of the virtual electrically charged fermion particles of the quantum vacuum is responsible for the Einstein Weak Equivalence Principle and for our perception of 4D space-time curvature near the earth. Since the virtual fermion particles of the quantum vacuum (virtual electrons for example) possess mass, we assume that during their short lifetimes the virtual fermions are in a state of downward acceleration (or free-fall) near the earth. Many of the virtual fermions also possess electrical charge, and are thus capable of interacting electrically with a real test mass, since a test mass is composed of real, electrically charged, fermion particles. The electrical interaction between the downward accelerated virtual fermions with nearby light or matter is responsible for the equivalence of inertial and gravitational mass, and also responsible for our perception of 4D space-time curvature near the earth. In pure accelerated frames the apparent acceleration of the virtual particles of the ...

  13. Comparisons of Lower Cambrian ( ) Chilhowee Group siliciclastics of the frontal Blue Ridge with possible equivalents in the central Blue Ridge and basement massifs in the southern Appalachians

    SciTech Connect (OSTI)

    Aylor, J.G. Jr.; Tull, J.F. (Florida State Univ., Tallahassee, FL (United States). Dept. of Geology)

    1993-03-01T23:59:59.000Z

    The Lower Cambrian Chilhowee Group (CG) along the Blue Ridge (BR) foreland boundary may also be represented in more internal parts of the orogen. The relative palinspastic positions of these more internal CG( ) sequences are poorly constrained, but they are believed to represent more outboard facies than those along the frontal BR. Although correlation with CG rocks of the frontal BR is indefinite due to metamorphism and polydeformation, correlative sequences may include the cover of the Corbin and Salem Church gneisses (Pinelog Fm.), Grandfather Mountain window, Murphy belt (MB) (Hiwassee River Group), Tallulah and Toxaway domes (TTD) (quartzite-schist member of the Tallulah Falls Fm.), Pine Mountain window (Hollis Quartzite), and Sauratown Mountains window (Hogan Creek and Sauratown Fms.). The CG is generally bounded on the west by the Great Smoky fault. Siliciclastics of the CG represent stacked, coarsening upward sequences, separated by transgressive facies, and capped by a highstand of the Shady Dolomite or its equivalents. CG correlations in the Kahatchee Mountain Group of the Talladega belt and the siliciclastics in the Hiwassee River Group of the MB are supported by fossil constraints. Other units are correlated with CG based upon intimate associations with marble believed to be equivalent to the overlying Lower Cambrian Shady Dolomite, or upon presumed uncomformable relationships above Grenville basement. The CG averages about 1,260 meters thickness at the frontal BR, whereas lower siliciclastics in the MB average 1,830 meters. The Pinelog Fm. is up to 600 meters thick. The Hollis Quartzite is approximately 325 meters thick, and the estimated thickness of the quartz-schist member at Tallulah Falls is up to 900 meters. More distal siliciclastics of the central BR in the MB and distal siliciclastics overlying basement were deposited farther out on the shelf as stratigraphic, litho-facies equivalents of shallower marine and continental deposits of the CG.

  14. TECHNICAL BASIS FOR DOE STANDARD 3013 EQUIVALENCY SUPPORTING REDUCED TEMPERATURE STABILIZATION OF OXALATE-DERIVED PLUTONIUM DIOXIDE PRODUCED BY THE HB-LINE FACILITY AT SAVANNAH RIVER SITE

    SciTech Connect (OSTI)

    Duffey, J. M.; Livingston, R. R.; Berg, J. M.; Veirs, D. K.

    2013-02-06T23:59:59.000Z

    This report documents the technical basis for determining that stabilizing highpurity PuO{sub 2} derived from oxalate precipitation at the SRS HB-Line facility at a minimum of 625 {degree}C for at least four hours in an oxidizing atmosphere is equivalent to stabilizing at a minimum of 950 {degree}C for at least two hours as regards meeting the objectives of stabilization defined by DOE-STD-3013 if the material is handled in a way to prevent excessive absorption of water.

  15. A measure of the extent of part-time and full-time unemployment in the United States: 1949-1958

    E-Print Network [OSTI]

    Bridges, Gilbert Sadler

    1960-01-01T23:59:59.000Z

    of the Census, " ~o . cit. , 2. 21 a ia('\\v ', i(acre 0! . ':. iI ''ic ', ich 0 vt', , r~ cir'I cv, cI', t nrI ?i&h? or rcting them from i;hc ("!pl c', ycd. partial ly unn". 010' cd. C11. pact, - I, imc:!orkcrs--?, , ucl f ul l ? t i!me ind ir;, u'! 1 r(1 i...

  16. An analysis of the relationship of selected factors to part-time and full-time farming in state economic area VIII of Texas

    E-Print Network [OSTI]

    Vincent, Charles Homer

    1962-01-01T23:59:59.000Z

    Dopertxient of Comiorco, Du"oou of the Census, 193'! o of. l/ Es!. is!stoa propamd by tho ASricul:ural IS!rlatin?Service, U. Department of ASriculture, in ceration uith the Bureau of the Census, Unitod States Do ; "!- "; :: Came ~m, and reported in tho..., Doporttsint o2 ~lculturol Dcoui(sI1(IO d So"lvl ~, T(oc Ac"'cult((rcl Qtl(1 7LK1(aulcoi GvllQQG OZ To Gc, J(GM, 19''1. 19/ Qouu ". , U ~ As?o . c. - & Tc. ~s ~lculfurol r~(t Stat'on, Sullotkn O'4, October, 19'. -). ~/ Uoo(. ouy A* S pgr~lisbod Kklta ou...

  17. Position Title: Full-time Instructorship for Academic Year 2011-2012 Position Description/Announcement: The Department of Mathematics and Statistics at

    E-Print Network [OSTI]

    Moore, Paul A.

    /Announcement: The Department of Mathematics and Statistics at Bowling Green State University is hiring at least two full and Statistics, 450 Math Science Bldg., Bowling Green State University, Bowling Green, OH 43403. Review

  18. Who should apply? Undergraduate students having completed (by the summer of attending) at least three years of full-time studies at university level and

    E-Print Network [OSTI]

    accommodation and living costs during the two-month stay. Students are covered by the CERN health and accident insurance scheme, and are offered a travel allowance on a lump sum basis. Student's projects Several, and associate Yandex we have R&D activities on: · Multithreaded Programming · Data Acquisitions Systems · Large

  19. INTO/CSU Job Description: Coordinator of Student Engagement This is a 12-month, full-time Administrative Professional (AP) position. INTO is an organization working in

    E-Print Network [OSTI]

    6/8/2012 INTO/CSU Job Description: Coordinator of Student Engagement. Job Purpose The Coordinator of Student Engagement will be responsible

  20. Low loss factor Co{sub 2}Z ferrite composites with equivalent permittivity and permeability for ultra-high frequency applications

    SciTech Connect (OSTI)

    Su, Zhijuan; Chang, Hong; Sokolov, Alexander S.; Hu, Bolin; Chen, Yajie, E-mail: y.chen@neu.edu; Harris, Vincent G. [Center for Microwave Magnetic Materials and Integrated Circuits, Northeastern University, Boston, Massachusetts 02115, USA and the Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115 (United States); Wang, Xian [Center for Microwave Magnetic Materials and Integrated Circuits, Northeastern University, Boston, Massachusetts 02115, USA and the Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115 (United States); School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074 (China)

    2014-08-11T23:59:59.000Z

    Ferrite composites of nominal composition Ba{sub 3}Co{sub 2+x}Ir{sub x}Fe{sub 24?2x}O{sub 41} were studied in order to achieve low magnetic and dielectric losses and equivalent permittivity and permeability over a frequency range of 0.3–1?GHz. Crystallographic structure was characterized by X-ray diffraction, which revealed a Z-type phase accompanied by increasing amounts of Y-type phase as the iridium amount was increased. The measured microwave dielectric and magnetic properties showed that the loss tan??{sub ?} and loss tan??{sub ?} decreased by 80% and 90% at 0.8?GHz with the addition of iridium of x?=?0.12 and 0.15, respectively. An effective medium approximation was adopted to analyze the composite ferrites having mixed phase structures. Moreover, adding Bi{sub 2}O{sub 3} enabled equivalent values of real permittivity and real permeability over the studied frequency range. The resultant data give rise to low loss factors, i.e., tan??{sub ?}/???=?0.008 and tan??{sub ?}/???=?0.037 at 0.8?GHz, while characteristic impedance was the same as that of free space.

  1. Spin-Spin Interactions in Gauge Theory of Gravity, Violation of Weak Equivalence Principle and New Classical Test of General Relativity

    E-Print Network [OSTI]

    Ning Wu

    2007-03-21T23:59:59.000Z

    For a long time, it is generally believed that spin-spin interactions can only exist in a theory where Lorentz symmetry is gauged, and a theory with spin-spin interactions is not perturbatively renormalizable. But this is not true. By studying the motion of a spinning particle in gravitational field, it is found that there exist spin-spin interactions in gauge theory of gravity. Its mechanism is that a spinning particle will generate gravitomagnetic field in space-time, and this gravitomagnetic field will interact with the spin of another particle, which will cause spin-spin interactions. So, spin-spin interactions are transmitted by gravitational field. The form of spin-spin interactions in post Newtonian approximations is deduced. This result can also be deduced from the Papapetrou equation. This kind of interactions will not affect the renormalizability of the theory. The spin-spin interactions will violate the weak equivalence principle, and the violation effects are detectable. An experiment is proposed to detect the effects of the violation of the weak equivalence principle.

  2. Criticality Safety Analysis on the Mixed Be, Nat-U, and C (Graphite) Reflectors in 55-Gallon Waste Drums and Their Equivalents for HWM Applications

    SciTech Connect (OSTI)

    Chou, P

    2011-12-14T23:59:59.000Z

    The objective of this analysis is to develop and establish the technical basis on the criticality safety controls for the storage of mixed beryllium (Be), natural uranium (Nat-U), and carbon (C)/graphite reflectors in 55-gallon waste containers and/or their equivalents in Hazardous Waste Management (HWM) facilities. Based on the criticality safety limits and controls outlined in Section 3.0, the operations involving the use of mixed-reflector drums satisfy the double-contingency principle as required by DOE Order 420.1 and are therefore criticality safe. The mixed-reflector mass limit is 120 grams for each 55-gallon drum or its equivalent. a reflector waiver of 50 grams is allowed for Be, Nat-U, or C/graphite combined. The waived reflectors may be excluded from the reflector mass calculations when determining if a drum is compliant. The mixed-reflector drums are allowed to mix with the typical 55-gallon one-reflector drums with a Pu mass limit of 120 grams. The fissile mass limit for the mixed-reflector container is 65 grams of Pu equivalent each. The corresponding reflector mass limits are 300 grams of Be, and/or 100 kilograms of Nat-U, and/or 110 kilograms of C/graphite for each container. All other unaffected control parameters for the one-reflector containers remain in effect for the mixed-reflector drums. For instance, Superior moderators, such as TrimSol, Superla white mineral oil No. 9, paraffin, and polyethylene, are allowed in unlimited quantities. Hydrogenous materials with a hydrogen density greater than 0.133 gram/cc are not allowed. Also, an isolation separation of no less than 76.2 cm (30-inch) is required between a mixed array and any other array. Waste containers in the action of being transported are exempted from this 76.2-cm (30-inch) separation requirement. All deviations from the CS controls and mass limits listed in Section 3.0 will require individual criticality safety analyses on a case-by-case basis for each of them to confirm their criticality safety prior to their deployment and implementation.

  3. Can biophysics tell us something about the weak equivalence principle vis a vis the thought experiment of Einstein involving human subjects?

    E-Print Network [OSTI]

    Fred H. Thaheld

    2009-06-16T23:59:59.000Z

    Over a period of several decades it has been noticed that most astronauts, either orbiting the earth or on trips to the moon, have observed phosphenes or light flashes (LF) including streaks, spots and clouds of light when their eyes are closed or they are in a darkened cabin. Scientists suspect that two separate components of cosmic rays cause these flashes due to direct interaction with the retina. This phenomenon is not noticed on the ground because of cosmic ray interaction with the atmosphere. The argument is advanced that this effect may provide us with a new method of exploring the weak equivalence principle from the standpoint of Einstein's original thought experiment involving human subjects. This can be done, utilizing the retina only, as an animate quantum mechanical measuring device or, in conjunction with the Anomalous Long Term Effects on Astronauts (ALTEA) facility.

  4. TECHNICAL BASIS FOR DOE STANDARD 3013 EQUIVALENCY SUPPORTING REDUCED TEMPERATURE STABILIZATION OF OXALATE-DERIVED PLUTONIUM OXIDE PRODUCED BY THE HB-LINE FACILITY AT SAVANNAH RIVER SITE

    SciTech Connect (OSTI)

    Duffey, J.; Livingston, R.; Berg, J.; Veirs, D.

    2012-07-02T23:59:59.000Z

    The HB-Line (HBL) facility at the Savannah River Site (SRS) is designed to produce high-purity plutonium dioxide (PuO{sub 2}) which is suitable for future use in production of Mixed Oxide (MOX) fuel. The MOX Fuel Fabrication Facility (MFFF) requires PuO{sub 2} feed to be packaged per the U.S. Department of Energy (DOE) Standard 3013 (DOE-STD-3013) to comply with the facility's safety basis. The stabilization conditions imposed by DOE-STD-3013 for PuO{sub 2} (i.e., 950 C for 2 hours) preclude use of the HBL PuO{sub 2} in direct fuel fabrication and reduce the value of the HBL product as MFFF feedstock. Consequently, HBL initiated a technical evaluation to define acceptable operating conditions for production of high-purity PuO{sub 2} that fulfills the DOE-STD-3013 criteria for safe storage. The purpose of this document is to demonstrate that within the defined operating conditions, the HBL process will be equivalent for meeting the requirements of the DOE-STD-3013 stabilization process for plutonium-bearing materials from the DOE complex. The proposed 3013 equivalency reduces the prescribed stabilization temperature for high-purity PuO{sub 2} from oxalate precipitation processes from 950 C to 640 C and places a limit of 60% on the relative humidity (RH) at the lowest material temperature. The equivalency is limited to material produced using the HBL established flow sheet, for example, nitric acid anion exchange and Pu(IV) direct strike oxalate precipitation with stabilization at a minimum temperature of 640 C for four hours (h). The product purity must meet the MFFF acceptance criteria of 23,600 {micro}g/g Pu (i.e., 2.1 wt %) total impurities and chloride content less than 250 {micro}g/g of Pu. All other stabilization and packaging criteria identified by DOE-STD-3013-2012 or earlier revisions of the standard apply. Based on the evaluation of test data discussed in this document, the expert judgment of the authors supports packaging the HBL product under a 3013 equivalency. Under the defined process conditions and associated material specifications, the high-purity PuO{sub 2} produced in HBL presents no unique safety concerns for packaging or storage in the 3013 required configuration. The PuO{sub 2} produced using the HBL flow sheet conditions will have a higher specific surface area (SSA) than PuO{sub 2} stabilized at 950 C and, consequently, under identical conditions will adsorb more water from the atmosphere. The greatest challenge to HBL operators will be controlling moisture content below 0.5 wt %. However, even at the 0.5 wt % moisture limit, the maximum acceptable pressure of a stoichiometric mixture of hydrogen and oxygen in the 3013 container is greater than the maximum possible pressure for the HBL PuO{sub 2} product.

  5. Dose-equivalent neutron dosimeter

    DOE Patents [OSTI]

    Griffith, R.V.; Hankins, D.E.; Tomasino, L.; Gomaa, M.A.M.

    1981-01-07T23:59:59.000Z

    A neutron dosimeter is disclosed which provides a single measurement indicating the amount of potential biological damage resulting from the neutron exposure of the wearer, for a wide range of neutron energies. The dosimeter includes a detecting sheet of track etch detecting material such as a carbonate plastic, for detecting higher energy neutrons, and a radiator layer contaning conversion material such as /sup 6/Li and /sup 10/B lying adjacent to the detecting sheet for converting moderate energy neutrons to alpha particles that produce tracks in the adjacent detecting sheet.

  6. Asymptotic equivalence of impulsive systems

    E-Print Network [OSTI]

    2007-09-10T23:59:59.000Z

    The theorem is proved. REFERENCES. 1. A. M. Samoilenko and N. A. Perestyuk, Impulsive Differential Equations [in Russian], Vyshcha Shkola, Kiev (1987). 2.

  7. APPROXIMATELY UNITARILY EQUIVALENT MORPHISMS AND ...

    E-Print Network [OSTI]

    2010-07-28T23:59:59.000Z

    paper we deal exclusively with asymptotic morphisms from nuclear C*-algebras. It was observed in [D] that if A is nuclear then any asymptotic morphism from A.

  8. An energy equivalency analysis of trade-offs between thermal efficiency and standby loss requirements for commercial gas service water heaters

    SciTech Connect (OSTI)

    Somasundaram, S.; Jarnagin, R.E.; Keller, J.M.; Schliesing, J.S.

    1992-06-01T23:59:59.000Z

    The American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) Standing Standard Project Committee 90.1 has approved an addendum (90.lb) to ASHRAE/IES Standard 90.1-1989. The addendum specifies an increase in the minimum thermal efficiency requirement (from 77% to 78%), accompanied by an easing of the standby loss requirements, for commercial gas-fired service water heaters. The Pacific Northwest Laboratory performed an energy equivalency analysis to assess the impact of trade-offs between the improved thermal efficiency and the less stringent standby loss requirements. The analysis objective was to estimate whether the energy savings during firing would offset the increased energy losses during standby periods. The primary focus of this report is to summarize the major results of the analysis and provide a recommendation for minimum energy-efficiency commercial gas-fired service water heaters. Limitations to the availability of detailed performance and energy-use data for these commercial water heaters are also pointed out.

  9. The interactive effects of pH, surface tension, and solution density for flotation systems for separation of equivalent-density materials: separation of ABS from HIPS

    SciTech Connect (OSTI)

    Karvelas, D.E.; Jody, B.J.; Pomykala, J.A.; Daniels, E.J.

    1996-07-01T23:59:59.000Z

    This paper presents the results of research being conducted at Argonne National Laboratory, to develop a cost-effective and environmentally acceptable process for the separation of high-value plastics from discarded household appliances. The process under development has separated high-purity (greater than 99.5%) acrylonitrile-butadiene-styrene (ABS) and high-impact polystyrene (HIPS) from commingled plastics generated by appliance-shredding and metal recovery operations. Plastics of similar densities, such as ABS and HIPS are further separated by using a chemical solution. By controlling the surface tension, the density and the temperature of the chemical solution, we are able to selectively float/separate plastics that have equivalent densities. In laboratory-scale tests, this technique has proven highly effective in recovering high-purity plastics materials from discarded household appliances and other obsolete durable goods. A pilot plant is under construction to demonstrate and assess the technical and economic performance of this process. In this paper, we examine the technical and economic issues that affect the recovery and separation of plastics and provide an update on Argonne`s plastics separation research and development activities.

  10. Johnson Origins of Equivalent Circuits Origins of the Equivalent Circuit Concept: The Current-Source Equivalent

    E-Print Network [OSTI]

    as a research assistant for Lenard until 1922, and then joined Hause-Siemens. He became Director of Siemens Research Laboratory in 1936. Except for interludes during and after World War II, he worked for Siemens about 1940 and comes from the historical pho- tograph collection provided on a CD by the Siemens

  11. Plutonium Equivalent Inventory for Belowground Radioactive Waste at the Los Alamos National Laboratory Technical Area 54, Area G Disposal Facility - Fiscal Year 2011

    SciTech Connect (OSTI)

    French, Sean B. [Los Alamos National Laboratory; Shuman, Rob [WPS: WASTE PROJECTS AND SERVICES

    2012-04-18T23:59:59.000Z

    The Los Alamos National Laboratory (LANL) generates radioactive waste as a result of various activities. Many aspects of the management of this waste are conducted at Technical Area 54 (TA-54); Area G plays a key role in these management activities as the Laboratory's only disposal facility for low-level radioactive waste (LLW). Furthermore, Area G serves as a staging area for transuranic (TRU) waste that will be shipped to the Waste Isolation Pilot Plant for disposal. A portion of this TRU waste is retrievably stored in pits, trenches, and shafts. The radioactive waste disposed of or stored at Area G poses potential short- and long-term risks to workers at the disposal facility and to members of the public. These risks are directly proportional to the radionuclide inventories in the waste. The Area G performance assessment and composite analysis (LANL, 2008a) project long-term risks to members of the public; short-term risks to workers and members of the public, such as those posed by accidents, are addressed by the Area G Documented Safety Analysis (LANL, 2011a). The Documented Safety Analysis uses an inventory expressed in terms of plutonium-equivalent curies, referred to as the PE-Ci inventory, to estimate these risks. The Technical Safety Requirements for Technical Area 54, Area G (LANL, 2011b) establishes a belowground radioactive material limit that ensures the cumulative projected inventory authorized for the Area G site is not exceeded. The total belowground radioactive waste inventory limit established for Area G is 110,000 PE-Ci. The PE-Ci inventory is updated annually; this report presents the inventory prepared for 2011. The approach used to estimate the inventory is described in Section 2. The results of the analysis are presented in Section 3.

  12. Dynamical response of the Galileo Galilei on the ground rotor to test the equivalence principle: Theory, simulation, and experiment. I. The normal modes

    SciTech Connect (OSTI)

    Comandi, G.L.; Chiofalo, M.L.; Toncelli, R.; Bramanti, D.; Polacco, E.; Nobili, A.M. [Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa (Italy) and Department of Physics, University of Bologna, I-40I26 Bologna (Italy) and Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56100 Pisa (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa (Italy); Department of Physics 'E. Fermi', University of Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy and Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Largo B. Pontecorvo, I-56127 Pisa (Italy)

    2006-03-15T23:59:59.000Z

    Recent theoretical work suggests that violation of the equivalence principle might be revealed in a measurement of the fractional differential acceleration {eta} between two test bodies-of different compositions, falling in the gravitational field of a source mass--if the measurement is made to the level of {eta}{approx_equal}10{sup -13} or better. This being within the reach of ground based experiments gives them a new impetus. However, while slowly rotating torsion balances in ground laboratories are close to reaching this level, only an experiment performed in a low orbit around the Earth is likely to provide a much better accuracy. We report on the progress made with the 'Galileo Galilei on the ground' (GGG) experiment, which aims to compete with torsion balances using an instrument design also capable of being converted into a much higher sensitivity space test. In the present and following articles (Part I and Part II), we demonstrate that the dynamical response of the GGG differential accelerometer set into supercritical rotation-in particular, its normal modes (Part I) and rejection of common mode effects (Part II)-can be predicted by means of a simple but effective model that embodies all the relevant physics. Analytical solutions are obtained under special limits, which provide the theoretical understanding. A simulation environment is set up, obtaining a quantitative agreement with the available experimental data on the frequencies of the normal modes and on the whirling behavior. This is a needed and reliable tool for controlling and separating perturbative effects from the expected signal, as well as for planning the optimization of the apparatus.

  13. New York Marcellus Shale: Industry boom put on hold

    SciTech Connect (OSTI)

    Mercurio, Angelique

    2012-01-16T23:59:59.000Z

    Key catalysts for Marcellus Shale drilling in New York were identified. New York remains the only state in the nation with a legislative moratorium on high-volume hydraulic fracturing, as regulators and state lawmakers work to balance the advantages of potential economic benefits while protecting public drinking water resources and the environment. New York is being particularly careful to work on implementing sufficiently strict regulations to mitigate the environmental impacts Pennsylvania has already seen, such as methane gas releases, fracturing fluid releases, flowback water and brine controls, and total dissolved solids discharges. In addition to economic and environmental lessons learned, the New York Department of Environmental Conservation (DEC) also acknowledges impacts to housing markets, security, and other local issues, and may impose stringent measures to mitigate potential risks to local communities. Despite the moratorium, New York has the opportunity to take advantage of increased capital investment, tax revenue generation, and job creation opportunities by increasing shale gas activity. The combination of economic benefits, industry pressure, and recent technological advances will drive the pursuit of natural gas drilling in New York. We identify four principal catalysts as follows: Catalyst 1: Pressure from Within the State. Although high-volume hydraulic fracturing has become a nationally controversial technology, shale fracturing activity is common in every U.S. state except New York. The regulatory process has delayed potential economic opportunities for state and local economies, as well as many industry stakeholders. In 2010, shale gas production accounted for $18.6 billion in federal royalty and local, state, and federal tax revenues. (1) This is expected to continue to grow substantially. The DEC is under increased pressure to open the state to the same opportunities that Alabama, Arkansas, California, Colorado, Kansas, Louisiana, Montana, New Mexico, North Dakota, Ohio, Oklahoma, Pennsylvania, South Dakota, Texas, Utah, West Virginia, and Wyoming are pursuing. Positive labor market impacts are another major economic draw. According to the Revised Draft SGEIS on the Oil, Gas and Solution Mining Regulatory Program (September 2011), hydraulic fracturing would create between 4,408 and 17,634 full-time equivalent (FTE) direct construction jobs in New York State. Indirect employment in other sectors would add an additional 29,174 FTE jobs. Furthermore, the SGEIS analysis suggests that drilling activities could add an estimated $621.9 million to $2.5 billion in employee earnings (direct and indirect) per year, depending upon how much of the shale is developed. The state would also receive direct tax receipts from leasing land, and has the potential to see an increase in generated indirect revenue. Estimates range from $31 million to $125 million per year in personal income tax receipts, and local governments would benefit from revenue sharing. Some landowner groups say the continued delay in drilling is costing tens of thousands of jobs and millions of dollars in growth for New York, especially in the economically stunted upstate. A number of New York counties near Pennsylvania, such as Chemung, NY, have experienced economic uptick from Pennsylvania drilling activity just across the border. Chemung officials reported that approximately 1,300 county residents are currently employed by the drilling industry in Pennsylvania. The Marcellus shale boom is expected to continue over the next decade and beyond. By 2015, gas drilling activity could bring 20,000 jobs to New York State alone. Other states, such as Pennsylvania and West Virginia, are also expected to see a significant increase in the number of jobs. Catalyst 2: Political Reality of the Moratorium. Oil and gas drilling has taken place in New York since the 19th century, and it remains an important industry with more than 13,000 currently active wells. The use of hydraulic fracturing in particular has been employed for decades. Yet, as technological

  14. High efficiency turbine blade coatings.

    SciTech Connect (OSTI)

    Youchison, Dennis L.; Gallis, Michail A.

    2014-06-01T23:59:59.000Z

    The development of advanced thermal barrier coatings (TBCs) of yttria stabilized zirconia (YSZ) that exhibit lower thermal conductivity through better control of electron beam - physical vapor deposition (EB-PVD) processing is of prime interest to both the aerospace and power industries. This report summarizes the work performed under a two-year Lab-Directed Research and Development (LDRD) project (38664) to produce lower thermal conductivity, graded-layer thermal barrier coatings for turbine blades in an effort to increase the efficiency of high temperature gas turbines. This project was sponsored by the Nuclear Fuel Cycle Investment Area. Therefore, particular importance was given to the processing of the large blades required for industrial gas turbines proposed for use in the Brayton cycle of nuclear plants powered by high temperature gas-cooled reactors (HTGRs). During this modest (~1 full-time equivalent (FTE)) project, the processing technology was developed to create graded TBCs by coupling ion beam-assisted deposition (IBAD) with substrate pivoting in the alumina-YSZ system. The Electron Beam - 1200 kW (EB-1200) PVD system was used to deposit a variety of TBC coatings with micron layered microstructures and reduced thermal conductivity below 1.5 W/m.K. The use of IBAD produced fully stoichiometric coatings at a reduced substrate temperature of 600 oC and a reduced oxygen background pressure of 0.1 Pa. IBAD was also used to successfully demonstrate the transitioning of amorphous PVD-deposited alumina to the -phase alumina required as an oxygen diffusion barrier and for good adhesion to the substrate Ni2Al3 bondcoat. This process replaces the time consuming thermally grown oxide formation required before the YSZ deposition. In addition to the process technology, Direct Simulation Monte Carlo plume modeling and spectroscopic characterization of the PVD plumes were performed. The project consisted of five tasks. These included the production of layered periodic microstructures in the coating, the Direct Simulation Monte Carlo (DSMC) modeling of particle transport in the PVD plume, functional graded layer development, the deposition of all layers to form a complete coating, and materials characterization including thermal testing. Ion beam-assisted deposition, beam sharing through advanced digital rastering, substrate pivoting, hearth calorimetry, infrared imaging, fiber optic-enabled optical emission spectroscopy and careful thermal management were used to achieve all the milestones outlined in the FY02 LDRD proposal.

  15. Comparisons of LET Distributions for Protons with Energies between50 and 200 MeV Determined Using a Spherical Tissue-EquivalentProportional Counter (TEPC) and a Position-Sensitive Silicon Spectrometer(RRMD-III)

    SciTech Connect (OSTI)

    Borak, Thomas B.; Doke, Tadayoshi; Fuse, T.; Guetersloh, StephenB.; Heilbronn, Lawrence H.; Hara, K.; Moyers, Michael; Suzuki, S.; Taddei, Phillip; Terasawa, K.; Zeitlin, Cary J.

    2004-12-01T23:59:59.000Z

    Experiments have been performed to measure the response of a spherical tissue-equivalent proportional counter (TEPC) and a silicon-based LET spectrometer (RRMD-III) to protons with energies ranging from 50 200 MeV. This represents a large portion of the energy distribution for trapped protons encountered by astronauts in low-Earth orbit. The beam energies were obtained using plastic polycarbonate degraders with a monoenergetic beam that was extracted from a proton synchrotron. The LET spectrometer provided excellent agreement with the expected LET distribution emerging from the energy degraders. The TEPC cannot measure the LET distribution directly. However, the frequency mean value of lineal energy, y bar f, provided a good approximation to LET. This is in contrast to previous results for high-energy heavy ions wherey barf underestimated LET, whereas the dose-averaged lineal energy, y barD, provided a good approximation to LET.

  16. The opening months of 2011 have provided our Jones School community with good news on several fronts: applications are up over 25% year-to-date, full-time employment offers accepted prior to

    E-Print Network [OSTI]

    that the positive stock price reaction that tends to occur when a firm announces dividend increases or stock Excellence This year students have continued to assert themselves by taking pride in excellence. This pride

  17. Institutional Plan FY 2003 - 2007

    E-Print Network [OSTI]

    Chartock, Michael; Hansen, Todd

    2002-01-01T23:59:59.000Z

    BA) FY01 DOE Effort CRADA WFO Total Operating CapitalWork for Other than DOE CRADA TOTAL DIRECT TOTAL INDIRECTOthers--Non-DOE Direct FTE CRADA Direct FTE TOTAL LAB DIRECT

  18. University of British Columbia 2012 Annual Report on Enrolment

    E-Print Network [OSTI]

    Handy, Todd C.

    , the government funded us 6923 FTE and we delivered 6616 FTE, which is about a 96% utilization rate. Based on preliminary data for the 2012/13 year, we estimate a utilization rate of 100% in meeting our ministry target

  19. Equivalence in Ventilation and Indoor Air Quality

    E-Print Network [OSTI]

    Sherman, Max

    2012-01-01T23:59:59.000Z

    event, the intermittent ventilation equations of Sherman,of the energy impact of ventilation and associated financialReview of Residential Ventilation Technologies. Berkeley,

  20. Equivalence in Ventilation and Indoor Air Quality

    E-Print Network [OSTI]

    Sherman, Max

    2012-01-01T23:59:59.000Z

    dryers, and other local ventilation. ? Occupant activitiesventilation such as that provided by economizers or intermittent locallocal kitchen and bath exhausts, but a large part of the standard focuses on the continuous mechanical whole-house ventilation.

  1. On an Equivalence between PLSI and LDA

    E-Print Network [OSTI]

    Girolami, M.

    Girolami,M. Kaban,A. 26th ACM Conference on Research and Development in Information Retrieval, SIGIR pp 433-434

  2. Deciding DPDA Equivalence is Primitive Recursive

    E-Print Network [OSTI]

    Stirling, Colin

    of Edinburgh email: cps@dcs.ed.ac.uk January 2002 Abstract A determinisitic decision procedure for deciding #12; I produced a di#erent proof of decidability that is essentially a simplification of S between premises. Essentially this is Sâ??enizergues's use of weights, and the idea was developed from

  3. Deciding DPDA Equivalence is Primitive Recursive

    E-Print Network [OSTI]

    Stirling, Colin

    of Edinburgh email: cps@dcs.ed.ac.uk January 2002 Abstract A determinisitic decision procedure for deciding #12;I produced a different proof of decidability that is essentially a simplification of S between premises. Essentially this is S´enizergues's use of weights, and the idea was developed from

  4. On Process Equivalence = Equation Solving in CCS 

    E-Print Network [OSTI]

    Bundy, Alan; Monroy, Raul; Green, Ian

    turned into equation solving (Lin 1995a). Existing tools for this proof task, such as VPAM (Lin 1993), are highly interactive. We introduce a method that automates the use of UFI. The method uses middle-out reasoning (Bundy et al. 1990a) and, so, is able...

  5. SELF HOMOTOPY EQUIVALENCES WHICH INDUCE THE ...

    E-Print Network [OSTI]

    1997-12-14T23:59:59.000Z

    2.4 Proposition. If X is (k ? 1)-connected and Y is (l ? 1)-connected, k, l ? 2, and. dimP

  6. A Beautiful Characterization of Equivalence Relations

    E-Print Network [OSTI]

    Verhoeff, Tom

    and Computing Science Eindhoven University of Technology P.O. Box 513, 5600 MB EINDHOVEN, The Netherlands E

  7. Operationally-Based Theories of Program Equivalence

    E-Print Network [OSTI]

    Pitts, Andrew

    programming by several people: see Dybjer and Sander (1989); Abramsky (1990); Howe (1989, Howe (1996); Egidi

  8. Equivalence in Ventilation and Indoor Air Quality

    E-Print Network [OSTI]

    Sherman, Max

    2012-01-01T23:59:59.000Z

    environment: PM 2.5 , acrolein, and formaldehyde. There isAcetaldehyde  Acrolein  Benzene  Formaldehyde  Naphthalene that total are PM 2.5 , acrolein, formaldehyde, and ozone.

  9. Equivalence in Ventilation and Indoor Air Quality

    E-Print Network [OSTI]

    Sherman, Max

    2012-01-01T23:59:59.000Z

    the use of mechanical ventilation systems in the same way asand operating ventilation systems with variable amounts ofto determine the ventilation system’s operation. We presume

  10. Time-temperature equivalence in Martensite tempering

    SciTech Connect (OSTI)

    Hackenberg, Robert E. [Los Alamos National Laboratory; Thomas, Grant A. [CSM; Speer, John G. [CSM; Matlock, David K. [CSM; Krauss, George [CSM

    2008-06-16T23:59:59.000Z

    The relationship between time and temperature is of great consequence in many materials-related processes including the tempering of martensite. In 1945, Hollomon and Jaffe quantified the 'degree of tempering' as a function of both tempering time, t, and tempering temperature, T, using the expression, T(log t + c). Here, c is thought to be a material constant and appears to decrease linearly with increasing carbon content. The Hollomon-Jaffe tempering parameter is frequently cited in the literature. This work reviews the original derivation of the tempering parameter concept, and presents the use of the characteristics diffusion distance as an alternative time-temperature relationship during martensite tempering. During the tempering of martensite, interstitial carbon atoms diffuse to form carbides. In addition, austenite decomposes, dislocations and grain boundaries rearrange, associated with iron self diffusion. Since these are all diffusional processes, it is reasonable to expect the degree of tempering to relate to the extent of diffusion.

  11. Parsing ERK Activation Reveals Quantitatively Equivalent Contributions...

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

    experimental studies of the dynamic interactions between EGFR and HER2, and their downstream activation of extracellular signal-related kinase (ERK) to understand this complex...

  12. Approximately unitarily equivalent morphisms and inductive limit ...

    E-Print Network [OSTI]

    morphisms are homotopic. In this paper we deal exclusively with asymptotic mor- phisms from nuclear C*-algebras. It was observed in [D] that if A is nuclear then.

  13. Asymptotic Unitary Equivalence in KK-Theory

    E-Print Network [OSTI]

    2001-09-17T23:59:59.000Z

    Key words: KK-theory, Cuntz pairs, classification of nuclear C?-algebras. 1. ... realizations of KK(A,B) for purely infinite simple nuclear C. ?. -algebras, [Kir94],.

  14. Designating Responsibility for Equivalencies or Exemptions from...

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

    Susan M. Cange, Assistant Manager for Environmental Management, Oak Ridge Office (OR); Bryan Bower, Director, West Valley Demonstration Project Office (WVDP), Status: Current...

  15. Chapter_16_Equivalencies_and_Exemptions

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'sEnergyTexas1. Feedstock & ProductionChapter 6 --30

  16. Property:Equivalent URI | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCalifornia Sector: Wind energy Product: Wind project

  17. NGPL Production, Gaseous Equivalent at Processing Plants

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade1 Source: Office of FossilFoot) YearNGPL Production, Gaseous

  18. Valerie Paton, Ph.D. Interim Dean

    E-Print Network [OSTI]

    Rock, Chris

    at Highland Lakes/ Marble Falls Amy Fernandez Administrative Business Assistant FTE 1.0 Jerrie Dooley Advisor Tech University FY13 Transition Julie Martenson. Ph.D. Director TTU at Fredericksburg and TTU at Marble Falls/ Highland Lakes FTE 1.0 Robert Stubblefield Director TTU Center at Junction FTE 1.0 Donna Hamilton

  19. Helical Tomotherapy vs. Intensity-Modulated Proton Therapy for Whole Pelvis Irradiation in High-Risk Prostate Cancer Patients: Dosimetric, Normal Tissue Complication Probability, and Generalized Equivalent Uniform Dose Analysis

    SciTech Connect (OSTI)

    Widesott, Lamberto, E-mail: widesott@yahoo.it [Agenzia Provinciale per la Protonterapia, Trento (Italy); Pierelli, Alessio; Fiorino, Claudio [Department of Medical Physics, St. Raffaele Scientific Institute, Milan (Italy); Lomax, Antony J. [Paul Scherrer Institut, Villigen (Switzerland); Amichetti, Maurizio [Agenzia Provinciale per la Protonterapia, Trento (Italy); Cozzarini, Cesare [Department of Radiotherapy, St. Raffaele Scientific Institute, Milan (Italy); Soukup, Martin [Section for Biomedical Physics, Universitatsklinik fur Radioonkologie, Tubingen (Germany); Schneider, Ralf; Hug, Eugen [Paul Scherrer Institut, Villigen (Switzerland); Di Muzio, Nadia [Department of Radiotherapy, St. Raffaele Scientific Institute, Milan (Italy); Calandrino, Riccardo [Department of Medical Physics, St. Raffaele Scientific Institute, Milan (Italy); Schwarz, Marco [Agenzia Provinciale per la Protonterapia, Trento (Italy)

    2011-08-01T23:59:59.000Z

    Purpose: To compare intensity-modulated proton therapy (IMPT) and helical tomotherapy (HT) treatment plans for high-risk prostate cancer (HRPCa) patients. Methods and Materials: The plans of 8 patients with HRPCa treated with HT were compared with IMPT plans with two quasilateral fields set up (-100{sup o}; 100{sup o}) and optimized with the Hyperion treatment planning system. Both techniques were optimized to simultaneously deliver 74.2 Gy/Gy relative biologic effectiveness (RBE) in 28 fractions on planning target volumes (PTVs)3-4 (P + proximal seminal vesicles), 65.5 Gy/Gy(RBE) on PTV2 (distal seminal vesicles and rectum/prostate overlapping), and 51.8 Gy/Gy(RBE) to PTV1 (pelvic lymph nodes). Normal tissue calculation probability (NTCP) calculations were performed for the rectum, and generalized equivalent uniform dose (gEUD) was estimated for the bowel cavity, penile bulb and bladder. Results: A slightly better PTV coverage and homogeneity of target dose distribution with IMPT was found: the percentage of PTV volume receiving {>=}95% of the prescribed dose (V{sub 95%}) was on average >97% in HT and >99% in IMPT. The conformity indexes were significantly lower for protons than for photons, and there was a statistically significant reduction of the IMPT dosimetric parameters, up to 50 Gy/Gy(RBE) for the rectum and bowel and 60 Gy/Gy(RBE) for the bladder. The NTCP values for the rectum were higher in HT for all the sets of parameters, but the gain was small and in only a few cases statistically significant. Conclusions: Comparable PTV coverage was observed. Based on NTCP calculation, IMPT is expected to allow a small reduction in rectal toxicity, and a significant dosimetric gain with IMPT, both in medium-dose and in low-dose range in all OARs, was observed.

  20. Equivalence demonstration of an alternative cover system 307 EQUIVALENCE DEMONSTRATION OF AN ALTERNATIVE COVER SYSTEM

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    engineered components of municipal and hazardous waste landfills is the cover system. The cover system should systems for arid locations has been acknowledged by field experimental assessments (e.g., Anderson et al for final cover design at hazardous waste sites. Evapotranspirative covers are also referred

  1. Definitions Conjugacy Classification Flow equivalence Flow classification Flow equivalence of shift spaces (and their

    E-Print Network [OSTI]

    Eilers, Søren

    K floor 2 x , 1 2 yC 1 2 floor 2 x with(plots): tra:=plot([seq([(b@@n)(0.243453,0.7232)],n=0..20)],x=0..1,y=0..1, color=black); tra := PLOT ... pts:=[seq(disk([(b@@n)(0.243453,0.7232)],0.01,color=black),n=0.6 0.8 1 y 0 0.2 0.4 0.6 0.8 1 seq(floor(2*(b@@(n))(0.243453,0.7232)[1]),n=0..20); 0, 0, 1, 1, 1, 1, 1

  2. Scanning Our Past Origins of the Equivalent Circuit Concept: The Current-Source Equivalent

    E-Print Network [OSTI]

    supporter of the Nazis (he first met Hitler in 1926) and being anti-Semitic to the extreme (so much so he

  3. Page 1 of 2 Division of Registrar and Student Services

    E-Print Network [OSTI]

    · partial upfront payment with 20% discount (minimum payment amount of $500.00. Discount on amount paid only at the course level is apportioned on the Equivalent Full-Time Student Load (EFTSL) value of the course

  4. Microsoft PowerPoint - KTH_pres - Leif Kari.pptx

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

    of technology. * More than 12,000 full-time (equivalents) students. * More than 1,800 PhD students. * Over 4,800 employees. * Ranked as the 126th best university in the world by...

  5. Slide 1

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

    greater FTE and cost allocation to the transactional processes, inconsistent automation self- service and longer days to fill open positions. - Effectiveness scores are 1...

  6. HR Structure as at October 2014 NB Safety Services also falls within the HR Directorate

    E-Print Network [OSTI]

    Strathclyde, University of

    Savage Modern Apprentice Co-ordinator Susan Lynch Assessor Jean Cloherty (0.6FTE) Development Assistant Colin Fyfe, Modern Apprentice #12;

  7. adolescence predicts medicine: Topics by E-print Network

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

    FTE months of adult inpatient psychiatry Oliver, Douglas L. 2 Predictive Genomics, Biology, Medicine Learning theory: SLT what is it? Mathematics Websites Summary: 43...

  8. Recovery Act: Brea California Combined Cycle Electric Generating Plant Fueled by Waste Landfill Gas

    SciTech Connect (OSTI)

    Galowitz, Stephen

    2012-12-31T23:59:59.000Z

    The primary objective of the Project was to maximize the productive use of the substantial quantities of waste landfill gas generated and collected at the Olinda Landfill near Brea, California. An extensive analysis was conducted and it was determined that utilization of the waste gas for power generation in a combustion turbine combined cycle facility was the highest and best use. The resulting Project reflected a cost effective balance of the following specific sub-objectives: • Meeting the environmental and regulatory requirements, particularly the compliance obligations imposed on the landfill to collect, process and destroy landfill gas • Utilizing proven and reliable technology and equipment • Maximizing electrical efficiency • Maximizing electric generating capacity, consistent with the anticipated quantities of landfill gas generated and collected at the Olinda Landfill • Maximizing equipment uptime • Minimizing water consumption • Minimizing post-combustion emissions • The Project produced and will produce a myriad of beneficial impacts. o The Project created 360 FTE construction and manufacturing jobs and 15 FTE permanent jobs associated with the operation and maintenance of the plant and equipment. o By combining state-of-the-art gas clean up systems with post combustion emissions control systems, the Project established new national standards for best available control technology (BACT). o The Project will annually produce 280,320 MWh’s of clean energy o By destroying the methane in the landfill gas, the Project will generate CO2 equivalent reductions of 164,938 tons annually. The completed facility produces 27.4 MWnet and operates 24 hours a day, seven days a week.

  9. ambient dose equivalent: Topics by E-print Network

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

    describing semiclassically and quantum mechanically various systems such as the hydrogen atom, a particle on the surface of a sphere, and a spinning top. It is also...

  10. aluminum equivalent approximation: Topics by E-print Network

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

    - TxSpace Summary: based coatings. The Coors Brewing Company Can Manufacturing Plant has been utilizing this technology in full scale aluminum can production since 1975,...

  11. americanus equivalent temperature: Topics by E-print Network

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

    gap filled with an indefinite metmaterial is considered using the suggested method. The giant enhancement of the transferred heat compared to the case of the empty gap is shown....

  12. Equivalence of an Approximate Linear Programming Bound with the ...

    E-Print Network [OSTI]

    2013-03-06T23:59:59.000Z

    Mar 6, 2013 ... management [5], stochastic games [32] and stochastic vehicle routing [47]. ...... The traveling-salesman problem and minimum spanning trees, ...

  13. Layer equivalency factors and deformation characteristics of flexible pavements

    E-Print Network [OSTI]

    Hung, Jung-Tsann

    1981-01-01T23:59:59.000Z

    Depth 0(in. ) 2 Base Course 12 Subbase Course tubing Pressuremeter Unloading Modulus EU (Section 7) 522172 psi (3600000 kPa) 24 70348 psi ( 485000 kPa) 36 Subgrade probe Test in progress 11604 psi ( 80000 kPa) 48? 11169 psi... gC' Test No. 40 Ql U1 20 2 3 4 6 20 40 60 80 120 140 160 Normal Stress in psi FIG. 7. I'1ohr's Diagram of Texas Triaxial Test (prom Nef 13) 21 50 Chart for Classification of Subgrade and Flexible Base Naterial 40 Class 1 30 Class 2...

  14. Assessing Equivalent Viscous Damping Using Piping System test Results

    SciTech Connect (OSTI)

    Nie, J.; Morante, R.

    2010-07-18T23:59:59.000Z

    The specification of damping for nuclear piping systems subject to seismic-induced motions has been the subject of many studies and much controversy. Damping estimation based on test data can be influenced by numerous factors, consequently leading to considerable scatter in damping estimates in the literature. At present, nuclear industry recommendations and nuclear regulatory guidance are not consistent on the treatment of damping for analysis of nuclear piping systems. Therefore, there is still a need to develop a more complete and consistent technical basis for specification of appropriate damping values for use in design and analysis. This paper summarizes the results of recent damping studies conducted at Brookhaven National Laboratory.

  15. On equivalence relationships between classification and ranking algorithms

    E-Print Network [OSTI]

    Ertekin, Seyda

    We demonstrate that there are machine learning algorithms that can achieve success for two separate

  16. Part-based Probabilistic Point Matching using Equivalence Constraints 

    E-Print Network [OSTI]

    McNeill, Graham; Vijayakumar, Sethu

    Correspondence algorithms typically struggle with shapes that display part-based variation. We present a probabilistic approach that matches shapes using independent part transformations, where the parts themselves are ...

  17. On Equivalence Relationships Between Classification and Ranking Algorithms

    E-Print Network [OSTI]

    Rudin, Cynthia

    We demonstrate that there are machine learning algorithms that can achieve success for two separate tasks simultaneously, namely the tasks of classification and bipartite ranking. This means that advantages gained from ...

  18. Equivalence of trans paths in ion channels Juan Alvarez*

    E-Print Network [OSTI]

    Hajek, Bruce

    approaches in this area one can find molecular dynamic simulations 3­8 , Brownian dynamics simulations 3 of Electrical and Computer Engineering and the Coordinated Science Laboratory, University of Illinois at Urbana if there is an electric potential difference across the channels. It is shown for simple single ion models

  19. Semantical Characterizations and Complexity of Equivalences in Answer

    E-Print Network [OSTI]

    Fink, Michael

    . 224­238, and in the 2004 Proceedings of the 9th European Conference on Logics in Artificial General Terms: Theory This article extends previous work that appeared in the 2003 Proceedings of the 19th International Conference on Logic Programming (ICLP), Lecture Notes in Computer Science, vol. 2916, Springer, pp

  20. Stretching rates and equivalent length near the tropopause

    E-Print Network [OSTI]

    Legras, Bernard

    the tropopause, J. Geophys. Res., 108(D13), 4394, doi:10.1029/2002JD002988, 2003. 1. Introduction [2] Transport

  1. Calibration and equivalency analysis of image plate scanners

    SciTech Connect (OSTI)

    Williams, G. Jackson, E-mail: williams270@llnl.gov; Maddox, Brian R.; Chen, Hui [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); Kojima, Sadaoki [Institute of Laser Engineering, Osaka University, Yamada-oka, 2-6, Suita, Osaka 565-0871 (Japan); Millecchia, Matthew [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623 (United States)

    2014-11-15T23:59:59.000Z

    A universal procedure was developed to calibrate image plate scanners using radioisotope sources. Techniques to calibrate scanners and sources, as well as cross-calibrate scanner models, are described to convert image plate dosage into physical units. This allows for the direct comparison of quantitative data between any facility and scanner. An empirical relation was also derived to establish sensitivity response settings for arbitrary gain settings. In practice, these methods may be extended to any image plate scanning system.

  2. SDL versus C Equivalence Checking Malek Haroud1

    E-Print Network [OSTI]

    Biere, Armin

    System Technology Group Champ-des-filles 39, 1228 Geneva, Switzerland 2 Johannes Kepler University Institute for Formal Models and Verification Altenbergerstr. 69, 4040 Linz, Austria Abstract. We present of a WiFi Medium Access Controller (i.e.; IEEE 802.11) that has been derived from its original SDL

  3. Stability of the Gauge Equivalent Classes in Inverse Stationary ...

    E-Print Network [OSTI]

    2009-12-02T23:59:59.000Z

    scattering and the attenuating coefficients up to a gauge transformation. ...... [24] Mokhtar -K M 1997 Mathematical Topics in Neutron Transport Theory (World ...

  4. An equivalent complex permeability model for litz-wire windings

    E-Print Network [OSTI]

    -603-646-3856 Abstract-- Previous methods for calculating power loss in litz- wire windings usually assume very fine effect, increase power loss in windings at high frequencies dramatically. Accurately analyzing eddy of a proximity-effect loss factor, which is power loss per length normalized to the square of external field

  5. Online Equivalence Learning Through A Quasi-Newton Method

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    objects is also very important, e.g. in the k-means and the fuzzy c-means algorithms. Among the usual relies on the evaluation of the comparison between two observations, or one observation and a prototype rely on the metric used. When dealing with unsupervised classification, the comparison between two

  6. From the equivalence principle to market consistent valuation Thomas Knispela

    E-Print Network [OSTI]

    Grübel, Rudolf

    of banks and insurance companies. A thorough quantitative analysis is a necessary prerequisite Hannover, Germany, email: knispel@stochastik.uni-hannover.de bTalanx AG, Quantitative Risk Management Weberc April 19, 2011 Abstract Insurance companies are exposed to many different types of risk

  7. Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces

    E-Print Network [OSTI]

    Mortensen, Dorthe K.

    2011-01-01T23:59:59.000Z

    air exchanged by a ventilation system, the equation can bestandard of care for ventilation system design in the US isand operate the ventilation system with variable amounts of

  8. DISCUSSIONS AND CLOSURES Discussion of "Equivalent Static Wind

    E-Print Network [OSTI]

    Chen, Xinzhong

    . By definition, the ESWL is a wind force and when it is applied statically, the response found by static analysis the mean wind force, which is expressed in a format that is similar to Eq. 7 of the original paper FeRb z . The mean-wind-force distrib- uted BESWL in Eq. 2 is easier for design engineers to understand. The inertial-force

  9. action semantic equivalences: Topics by E-print Network

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

    and non, including lexical synonymy, conversives (buysell), idioms (kick the bucketdie), and more extended Siddharthan, Advaith 154 Nested Semantics over Finite Trees...

  10. Physical Sciences Facility Air Emission Control Equivalency Evaluation

    SciTech Connect (OSTI)

    Brown, David M.; Belew, Shan T.

    2008-10-17T23:59:59.000Z

    This document presents the adequacy evaluation for the application of technology standards during design, fabrication, installation and testing of radioactive air exhaust systems at the Physical Sciences Facility (PSF), located on the Horn Rapids Triangle north of the Pacific Northwest National Laboratory (PNNL) complex. The analysis specifically covers the exhaust portion of the heating, ventilation and air conditioning (HVAC) systems associated with emission units EP-3410-01-S, EP-3420-01-S and EP 3430-01-S.

  11. Computing action equivalences for planning under time-constraints

    E-Print Network [OSTI]

    Gardiol, Natalia H.

    2006-03-20T23:59:59.000Z

    In order for autonomous artificial decision-makers to solverealistic tasks, they need to deal with the dual problems of searching throughlarge state and action spaces under time pressure.We study the problem of planning ...

  12. Nanofiber composite membranes with low equivalent weight perfluorosulfonic acid polymers

    E-Print Network [OSTI]

    Mather, Patrick T.

    membranes for hydrogen/air and direct methanol proton- exchange membrane (PEM) fuel cells. Such new membranes must possess the requisite transport properties (e.g., high proton conductivity and low gas

  13. Microsoft Word - LS-324 - Equivalent Circuit Model & Power Calculation...

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

    of PAC 2003, pp. 2548-2550. 7 G. Decker, "Conceptual Design for a Rectangular Cavity BPM Tilt Monitor for the APS Storage Ring", APS Internal Note, DIAG-TN-2010-10, Sept. 21,...

  14. Cultural evolution is not equivalent to Darwinian evolution

    E-Print Network [OSTI]

    Read, Dwight W

    2006-01-01T23:59:59.000Z

    rounds of microevolution. Evolution & Development, 2(2), 78-An assessment of cul- tural evolution and a new synthesis.variation, and the evolution of culture” by D. Rindos.

  15. Macroencapsulation Equivalency Guidance for Classified Weapon Components and NNSSWAC Compliance

    SciTech Connect (OSTI)

    Poling, J.

    2012-05-15T23:59:59.000Z

    The U.S. Department of Energy (DOE) complex has a surplus of classified legacy weapon components generated over the years with no direct path for disposal. The majority of the components have been held for uncertainty of future use or no identified method of sanitization or disposal. As more weapons are retired, there is an increasing need to reduce the amount of components currently in storage or on hold. A process is currently underway to disposition and dispose of the legacy/retired weapons components across the DOE complex.

  16. The Complexity of Finding Top-Toda-Equivalence-Class Members

    E-Print Network [OSTI]

    Zimand, Marius

    -gu-ab, EIA-0080124, DUE-9980943, and EIA-0205061, and NIH grant P30-AG18254. A preliminary version older article [DHHT94]). Nickelsen's thesis [Nic01] and the recent survey article by Nickelsen

  17. The Complexity of Finding Top-Toda-Equivalence-Class Members

    E-Print Network [OSTI]

    Zaki, Mohammed Javeed

    CCR-9322513, INT-9815095/DAAD-315-PPP-g¨u-ab, EIA-0080124, DUE-9980943, and EIA-0205061, and NIH grant theory (see also the somewhat older article [DHHT94]). Nickelsen's thesis [Nic01] and the recent survey

  18. FIBERWISE KK-EQUIVALENCE OF CONTINUOUS FIELDS OF C ...

    E-Print Network [OSTI]

    2008-01-04T23:59:59.000Z

    Abstract. Let A and B be separable nuclear continuous C(X)-algebras over a fi- nite dimensional compact metrizable space X. It is shown that an element ? of the

  19. Turbulence, orbit equivalence, and the classification of nuclear C

    E-Print Network [OSTI]

    2012-04-24T23:59:59.000Z

    We bound the Borel cardinality of the isomorphism relation for nuclear ... These results depend intimately on the classification theory of nuclear simple C?- ...

  20. Dosimetric equivalence of nonstandard HDR brachytherapy catheter patterns

    SciTech Connect (OSTI)

    Cunha, J. A. M.; Hsu, I-C.; Pouliot, J. [University of California, San Francisco, California 94115 (United States)

    2009-01-15T23:59:59.000Z

    Purpose: To determine whether alternative high dose rate prostate brachytherapy catheter patterns can result in similar or improved dose distributions while providing better access and reducing trauma. Materials and Methods: Standard prostate cancer high dose rate brachytherapy uses a regular grid of parallel needle positions to guide the catheter insertion. This geometry does not easily allow the physician to avoid piercing the critical structures near the penile bulb nor does it provide position flexibility in the case of pubic arch interference. This study used CT datasets with 3 mm slice spacing from ten previously treated patients and digitized new catheters following three hypothetical catheter patterns: conical, bi-conical, and fireworks. The conical patterns were used to accommodate a robotic delivery using a single entry point. The bi-conical and fireworks patterns were specifically designed to avoid the critical structures near the penile bulb. For each catheter distribution, a plan was optimized with the inverse planning algorithm, IPSA, and compared with the plan used for treatment. Irrelevant of catheter geometry, a plan must fulfill the RTOG-0321 dose criteria for target dose coverage (V{sub 100}{sup Prostate}>90%) and organ-at-risk dose sparing (V{sub 75}{sup Bladder}<1 cc, V{sub 75}{sup Rectum}<1 cc, V{sub 125}{sup Urethra}<<1 cc). Results: The three nonstandard catheter patterns used 16 nonparallel, straight divergent catheters, with entry points in the perineum. Thirty plans from ten patients with prostate sizes ranging from 26 to 89 cc were optimized. All nonstandard patterns fulfilled the RTOG criteria when the clinical plan did. In some cases, the dose distribution was improved by better sparing the organs-at-risk. Conclusion: Alternative catheter patterns can provide the physician with additional ways to treat patients previously considered unsuited for brachytherapy treatment (pubic arch interference) and facilitate robotic guidance of catheter insertion. In addition, alternative catheter patterns may decrease toxicity by avoidance of the critical structures near the penile bulb while still fulfilling the RTOG criteria.