2014 Renewable Energy Markets (REM) Conference | Department of...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
2014 Renewable Energy Markets (REM) Conference 2014 Renewable Energy Markets (REM) Conference December 2, 2014 (All day) to December 4, 2014 (All day) Renewable Energy Markets...
Proton recoil scintillator neutron rem meter
Olsher, Richard H. (Los Alamos, NM); Seagraves, David T. (Los Alamos, NM)
2003-01-01T23:59:59.000Z
A neutron rem meter utilizing proton recoil and thermal neutron scintillators to provide neutron detection and dose measurement. In using both fast scintillators and a thermal neutron scintillator the meter provides a wide range of sensitivity, uniform directional response, and uniform dose response. The scintillators output light to a photomultiplier tube that produces an electrical signal to an external neutron counter.
REM Handling Procedures | The Ames Laboratory
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.70COMMUNITYResponses:December 11, 2014WD 05-2103 REM Handling
Lyapunov-Based Stability Analysis for REM Congestion Control
Low, Steven H.
Lyapunov-Based Stability Analysis for REM Congestion Control Orhan C¸ . IMER, Tamer BAS¸AR Abstract-- This paper investigates convergence properties of basic REM flow control algorithm via Lyapunov functions a Lyapunov argument. Extension to the general multi-link model is discussed as well. I. INTRODUCTION
Ante rem Structuralism and the Myth of Identity Criteria
Siu, Ho Kin
2010-01-20T23:59:59.000Z
reasons why the thesis has to be dropped. (i) The purported metaphysical and epistemic purchase of adopting the thesis can be put into doubt. (ii) Primitive identity within a mathematical structure is more in line with ante rem structuralist's commitment...
Ante rem Structuralism and the Myth of Identity Criteria
Siu, Ho Kin
2010-01-20T23:59:59.000Z
reasons why the thesis has to be dropped. (i) The purported metaphysical and epistemic purchase of adopting the thesis can be put into doubt. (ii) Primitive identity within a mathematical structure is more in line with ante rem structuralist's commitment...
http://www.hss.energy.gov/csa/analysis/rems/rems/ri.htm
National Nuclear Security Administration (NNSA)
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 AprilAElectronic Input Options Gary L. HirschOccurrence Reporting and ProcessingREMS
Plutonium 239 Equivalency Calculations
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.
Equivalence and Order Section 1: Equivalence
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
Lifetime of the Bose Gas with Resonant Interactions B. S. Rem,1
Lifetime of the Bose Gas with Resonant Interactions B. S. Rem,1 A. T. Grier,1 I. Ferrier-Barbut,1 U at and around unitarity using a Feshbach resonance in lithium 7. At unitarity, we measure the temperature length a describing two-body interactions becomes infinite. It has been demonstrated both experimentally
Data processing unit and power system for the LANL REM instrument package. Final report
Lockhart, W. [Southwest Research Inst., San Antonio, TX (United States). Instrumentation and Space Research Div.
1994-03-01T23:59:59.000Z
The NEPSTP spacecraft needs highly reliable instrumentation to measure the nuclear reactor health and performance. These reactor measurements are essential for initial on-orbit phase operations and documentation of performance over time. Los Alamos National Laboratory (LANL), under the guidance of W. C. Feldman, principal investigator, has designed the Radiation Environment Monitoring (REM) package to meet these needs. The instrumentation package contains two neutron detectors, one gamma-ray detector, a data processing unit, and an instrument power system. The REM package is an integration of quick turn-around, state of the practice technology for detectors, data processors, and power systems. A significant portion of REM consists of subsystems with flight history. Southwest Research Institute (SwRI) has been tasked by LANL to design support electronics, including the Data Processing Unit (DPU) and Power System for REM. The goal for this project is to use technologies from current programs to speed up and simplify the design process. To meet these design goals, the authors use an open architecture VME bus for the DPU and derivatives of CASSINI power supplies for the instrument power system. To simplify integration and test activities, they incorporate a proven software development strategy and tool kits from outside vendors. The objective of this report is to illustrate easily incorporated system level designs for the DPU, power system and ground support electronics (GSE) in support of the important NEPSTP program.
Testing Model Nesting and Equivalence
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
Testing Model Nesting and Equivalence
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
Baughman, Martin L.
1981-01-01T23:59:59.000Z
This study compares two models of the U.S. electric utility industry including the EIA's electric utility submodel in the Midterm Energy Market Model (MEMM), and the Baughman-Joskow Regionalized Electricity Model (REM). ...
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...
Nonequivalence of equivalence principles
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.
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 ...
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.
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
Equivalence and Strong Equivalence between Sparsest and Least ...
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 ?.
Confounding Equivalence in Causal Inference
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
Free products, Orbit Equivalence and Measure Equivalence Rigidity
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
Equivalence relations which reduce all Borel equivalence relations
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
Equivalence Principle and Clocks
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.
GENERATING EQUIVALENCE RELATIONS BY HOMEOMORPHISMS
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
Equivalence in Ventilation and Indoor Air Quality
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
Recursion theory and countable Borel equivalence relations
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
Expression equivalence checking using interval analysis
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
Equivalence Principle and Gravitational Redshift
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.
SAPONIFICATION EQUIVALENT OF DASAMULA TAILA
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.
Mathematical Equivalence vs. Physical Equivalence between Extended Theories of Gravitations
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.
Analytic equivalence relations and bi-embeddability
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
Morita Equivalence in Deformation Quantization Henrique Bursztyn
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
Analytic equivalence of geometric transitions
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.
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
Equivalence of Learning Algorithms Julien Audiffren1
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
EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE, BY MATRIX EQUIVALENCE OVER
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
EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE, BY MATRIX EQUIVALENCE OVER
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
Optimization Online - Equivalence of Convex Problem Geometry ...
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*** ...
Snow water equivalent estimation using blackbox optimization
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.
EQUIVALENCE RELATIONS ON ALGEBRAIC CYCLES UWE JANNSEN
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
Characterizing Contextual Equivalence in Calculi with Passivation
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
ACQUIRED EQUIVALENCE CHANGES STIMULUS REPRESENTATIONS , D. SHOHAMY
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
Operational Equivalence of Graph Transformation Systems
Sarna-Starosta, Beata
Operational Equivalence of Graph Transformation Systems Frank Raiser and Thom FrÂ¨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
Categorical Equivalence of Varieties and Invariant Relations
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
8 Equivalence Relations 8.1 Relations
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
Equivalence of Julesz Ensembles and Frame Models
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
Orbit equivalence for Cantor minimal Zd
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
The Non-Equivalence of Empirically Equivalent Theories: The Case of Hidden Variables in
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
Limits of Equivalence: Thinking Gay Male Subjectivity Outside Feminist Theory
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
About Orientifold Planar Equivalence on the Lattice
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.
Optimization Online - Equivalence of an Approximate Linear ...
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 ...
Optimization Online - On Equivalence of Semidefinite Relaxations ...
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 ...
Energy Conservation Project Evaluation by Investment Equivalents
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....
Snow water equivalent estimation using blackbox optimization
StĂ©phane 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 ...
Equivalence of Convex Problem Geometry and Computational ...
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.
Measurement of neutron dose equivalent outside and inside of the treatment vault of GRID therapy
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.
Guessing Attacks and the Computational Soundness of Static Equivalence
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
Borel equivalence relations which are highly unfree Greg Hjorth
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
The Equivalence of Linear Programs and Zero-Sum Games
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) ...
Remarks on statistical errors in equivalent widths
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.
THEOREM 1.1.1 The distinct equivalence classes of an equivalence ...
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 ...
Equivalence in Ventilation and Indoor Air Quality
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.
Equivalence Relations in Set Theory, Computation Theory and Complexity Theory
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
Broader source: Energy.gov (indexed) [DOE]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010In addition to 1 |D I S P U TPurposeRPSProgramnote:
Bisimulations Meet PCTL Equivalences for Probabilistic Automata
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.
Equivalence semantics for concurrency: comparison and application
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...
Testing Equivalence Probabilistically Adnan Darwiche and Jinbo Huang
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
Equivalence Structures and Isomorphisms in the Difference Hierarchy
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
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
On the Equivalence of Constrained and Compound Optimal Designs
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
SOME APPLICATIONS OF SUPERRIGIDITY TO BOREL EQUIVALENCE RELATIONS
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
On the equivalence of nonadiabatic fluids
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.
On Equivalence of Semidefinite Relaxations for Quadratic Matrix ...
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 ...
An Introduction to Decidability of DPDA Equivalence
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 SÂ´enizergues's proof [14, the tableau proof system uses conditional proof rules that involve distances between premises. Essentially
An Introduction to Decidability of DPDA Equivalence
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
An Equivalence Between Sparse Approximation and Support Vector Machines 1
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
Guessing Attacks and the Computational Soundness of Static Equivalence
Abadi, MartĂn
Guessing Attacks and the Computational Soundness of Static Equivalence MartÂ´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
A Stronger Notion of Equivalence for Logic Programs
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
EQUIVALENCE RELATIONS FOR TWO VARIABLE REAL ANALYTIC FUNCTION GERMS
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
THIN EQUIVALENCE RELATIONS AND INNER MODELS PHILIPP SCHLICHT
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
CCZ and EA Equivalence between Mappings over Finite Abelian Groups
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
COUNTABLE ABELIAN GROUP ACTIONS AND HYPERFINITE EQUIVALENCE RELATIONS
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
Equivalency-processing parallel photonic integrated circuit EP3
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
Strong Equivalence of Qualitative Optimization Problems
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...
Orientifold Planar Equivalence: The Quenched Meson Spectrum
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.
Equivalence principle in scalar-tensor gravity
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.
Quantal Definition of the Weak Equivalence Principle
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.
Einstein's Apple: His First Principle of Equivalence
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.
Equivalent Circuit Modeling of Hysteresis Motors
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.
Orientifold Planar Equivalence: The Chiral Condensate
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.
Gravitational leptogenesis, C, CP and strong equivalence
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.
Equivalence Principle and the Baryon Acoustic Peak
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...
Unit Conversion Factors Quantity Equivalent Values
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
The Equivalence Principle in a Quantum World
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.
The Equivalence Principle in a Quantum World
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.
AKS systems and Lepage equivalent problems
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.
Asymptotic Equivalence and Adaptive Estimation for Robust Nonparametric Regression
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
Borel equivalence relations and everywhere faithful actions of free products
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
Weak Order Equivalence for Logic Programs with Preferences
Schaub, Torsten
Weak Order Equivalence for Logic Programs with Preferences Kathrin Konczak Institut fÂ¨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
Checking NFA equivalence with bisimulations up to congruence
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
Isomorphism of subshifts is a universal countable Borel equivalence relation
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
Checking NFA equivalence with bisimulations up to congruence
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
Reducing Equational Theories for the Decision of Static Equivalence #
Treinen, Ralf - Laboratoire Preuves, Programmes et SystĂ¨mes, UniversitĂ© 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 indistinÂ guishability of sequences of terms which is useful in the symbolic analysis of cryptographic protocols. Static equivalence
A Language-Independent Proof System for Mutual Program Equivalence
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
Regular Equivalence and Dynamic Logic Maarten Marx and Michael Masuch
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
ccsd00003913, ZETA FUNCTIONS AND BLOW-NASH EQUIVALENCE
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
ASYMPTOTIC EQUIVALENCE FOR INHOMOGENEOUS JUMP DIFFUSION PROCESSES AND WHITE NOISE.
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
On the Equivalence of Distributed Systems with Queries and Communication$
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
Mining Complex Boolean Expressions for Sequential Equivalence Checking
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
Stutter Equivalence for In nite State Systems Zhendong Su
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
Equivalence Relations Definition of a relation on a set
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
On the Equivalence of Distributed Systems with Queries and Communication
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
On the Complexity of the Equivalence Problem for Probabilistic Automata
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
Complexity of Equivalence Problems for Concurrent Systems of Finite Agents
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 Â¸ q for one of the commonly used equivalence Â¸. We show that this ques
The equivalence principle in classical mechanics and quantum mechanics
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.
Spectral equivalences from Bethe Ansatz equations
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...
Orbit Equivalence and Von Neumann Rigidity for Actions of Wreath Product Groups
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
[Semantic equivalence of the Brazilian Portuguese version of the "Body Change Inventory"].
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
Applying modality and equivalence concepts to pattern finding in social process-produced data
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
A reassessment of equivalence in yield from marine reserves and traditional fisheries management
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
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 ......
Optimization Online - On the equivalence of the method of conjugate ...
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 ...
Equivalent circuit modeling of hybrid electric vehicle drive train
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...
Stability of the Gauge Equivalent Classes in Inverse Stationary ...
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
Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces
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
Joule Equivalent of Electrical Energy by Dr. James E. Parks
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
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
Observable Equivalence between General Relativity and Shape Dynamics
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.
Violation of the Weak Equivalence Principle in Bekenstein's theory
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.
Equivalence of the Husain and the Pleba?ski equations
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.
Design, construction and implementation of spherical tissue equivalent proportional counter
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...
On equivalence of thinning fluids used for hydraulic fracturing
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...
Development of design tool for statically equivalent deepwater mooring systems
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...
I. Introduction Equivalent loading of induction machines are
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
Influence of Gravitation on Mass-Energy Equivalence Relation
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.
american roentgen ray: Topics by E-print Network
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
K 1998-01-01 199 Socioeconomic Characteristics of American Indians in Los Angeles County University of California eScholarship Repository Summary: American Indians is critical...
Mukhopadhyay, J.; Baltazar, J. C.; Haberl, J. S.; Yazdani, B.
2013-01-01T23:59:59.000Z
This report compares the performance of a 2009 IECC compliant house using IC3 (Ver. 3.12.1), REM/Rate (Ver. 13.00), REScheck (Ver. 4.4.3.1) and EnergyGauge (Ver. 2.8.05). The analysis was conducted for Houston, Dallas and Amarillo - the three cities...
Mukhopadhyay, J.; Baltazar, J. C.; Haberl, J. S.; Yazdani, B.
2013-01-01T23:59:59.000Z
This report compares the performance of a 2009 IECC compliant house using IC3 (Ver. 3.12.1), REM/Rate (Ver. 13.00), REScheck (Ver. 4.4.3.1) and EnergyGauge (Ver. 2.8.05). The analysis was conducted for Houston, Dallas and Amarillo - the three cities...
Equivalent Neutrinos, Light WIMPs, and the Chimera of Dark Radiation
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.
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
Equivalence of Conventionally-Derived and Parthenote-Derived Human Embryonic Stem Cells
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
Containment, Equivalence and Coreness from CSP to QCSP and beyond
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.
Mesoscale symmetries explain dynamical equivalence of food webs
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.
On the Equivalence of Nonnegative Matrix Factorization and K-means - Spectral Clustering
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
The Equivalence Principle and the Constants of Nature
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.
Equivalent radii of antennas with noncircular cross section
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...
Equivalent roughness height for plane bed under oscillatory flow
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
Equivalent Roughness Height for Plane Bed under Steady Flow
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
New Blind Signatures Equivalent to Factorization (Extended Abstract)
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
Nordstrom's scalar theory of gravity and the equivalence principle
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.
The Equivalence Principle as a Probe for Higher Dimensions
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.
On the Equivalence of Constraint Satisfaction Francesca Rossi1
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
CONFIDENTIAL: DO NOT QUOTE 1 Equivalence in Ventilation and
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
Control of Nondeterministic Discrete Event Systems for Bisimulation Equivalence
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
Equivalence Checking for Function Pipelining in Behavioral Synthesis
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
Cultural evolution is not equivalent to Darwinian evolution
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
A Theory of Operational Equivalence for Interaction Nets
FernĂˇndez, 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
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
Virtual Laboratories > 1. Foundations > 1 2 3 4 5 6 7 8 9 5. Equivalence Relations
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
LARGE DEVIATIONS AND THE THERMODYNAMIC FORMALISM: A NEW PROOF OF THE EQUIVALENCE OF ENSEMBLES a
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
Orbit equivalence of Cantor minimal systems: A survey and a new proof
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
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
ON ALMOST BLOW-ANALYTIC EQUIVALENCE GOULWEN FICHOU AND MASAHIRO SHIOTA
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
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
ccsd-00004260,version1-15Feb2005 Galois coverings, Morita equivalence and smash
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
Equivalence problem for the orthogonal webs on the sphere
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.
Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces
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.
Torsion-balance tests of the weak equivalence principle
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.
MOSFETMOSFET ffTT MOSFET small-signal equivalent circuits
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
Equivalence of topological and scattering approaches to quantum pumping
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.
Equivalent Neutrinos, Light WIMPs, and the Chimera of Dark Radiation
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...
Composite system in noncommutative space and the equivalence principle
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.
Equivalence principle and experimental tests of gravitational spin effects
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.
The equivalence of inverse Compton scattering and the undulator concept
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.
Commutation Relations for Double Tensors of Two Equivalent D Electrons
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.
Equivalent forms of the Bessis-Moussa-Villani conjecture
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 $A, B \\geq 0$, $p>0$.
On the equivalence theorem in f(R)-type generalized gravity
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.
A Common View on Strong, Uniform, and Other Notions of Equivalence in Answer-Set Programming
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...
Lunar Laser Ranging Tests of the Equivalence Principle
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.
Equivalent Continuum Modeling for Shock Wave Propagation in Jointed Media
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.
114 CHAPTER 2. REGULAR LANGUAGES 2.17 Right-Invariant Equivalence Relations on
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
Calculation of extremity neutron fluence-to-dose equivalent conversion factors
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...
State property systems and closure spaces: a study of categorical equivalence
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
Strong and uniform equivalence of nonmonotonic theories --an algebraic Miroslaw Truszczynski
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
Comment on the equivalence of Bakamjian-Thomas mass operators in different forms of dynamics
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
The Stable Equivalence and Cancellation Problems Leonid Makar-Limanov Peter van Rossum
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
G-Structures Local Equivalence and Classification of Co-frames
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
Equivalence for nonparametric drift estimation of a diffusion process and its Euler scheme.
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
Equivalence Principle Violation in Weakly Vainshtein-Screened Systems Alexander V. Belikov1
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
GAMES AND ELEMENTARY EQUIVALENCE OF II1 FACTORS ISAAC GOLDBRING AND THOMAS SINCLAIR
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
Tests of the hydrodynamic equivalence of direct-drive implosions with different D2 and 3
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
Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Equivalence Class Testing
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
Tiling groupoids and Bratteli diagrams II: structure of the orbit equivalence relation
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
Strong and uniform equivalence of nonmonotonic theories ---an algebraic Mirosl/aw Truszczy
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 sevÂ eral nonmonotonic logics including logic programming
ANALYTIC EQUIVALENCE OF NORMAL CROSSING FUNCTIONS ON A REAL ANALYTIC MANIFOLD
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
The Hardness of Code Equivalence over Fq and its Application to Code-based Cryptography
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
Reducing Strong Equivalence of Logic Programs to Entailment in Classical Propositional Logic
Wu, Dekai
Reducing Strong Equivalence of Logic Programs to Entailment in Classical Propositional Logic ] introduced a notion of strong equivalence beÂ tween two logic programs, and showed that it can be captured theories that reduces this notion of strong equivalence to enÂ tailment in classical propositional logic
ccsd-00003913,version1-17Jan2005 ZETA FUNCTIONS AND BLOW-NASH EQUIVALENCE
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
The number of topological generators for full groups of ergodic equivalence relations
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
Equivalence of CHR States Revisited Frank Raiser, Hariolf Betz, and Thom Fruhwirth
Sarna-Starosta, Beata
Equivalence of CHR States Revisited Frank Raiser, Hariolf Betz, and Thom FrÂ¨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
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
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
On full groups of non ergodic probability measure preserving equivalence relations
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
The Equivalence Problem of Multitape Finite Tero Harju and Juhani Karhumaki
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
Asymptotic equivalence for time continuous additive processes and their discrete counterpart
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
Asymptotic equivalence of jumps Lvy processes and their discrete counterpart Pierre tora
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
Quantum Equivalence and Quantum Signatures in Heat Engines
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.
Topographic Effects on Ambient Dose Equivalent Rates from Radiocesium Fallout
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...
Classification of Ding's Schubert Varieties: Finer Rook Equivalence
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...
On the Equivalence Principle and Electrodynamics of Moving Bodies
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...
Total effective dose equivalent associated with fixed uranium surface contamination
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.
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)
Optical Anisotropy of Schwarzschild Metric within Equivalent Medium Framework
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.
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
ORISE: DOE's Radiation Exposure Monitoring System (REMS)
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparencyDOE ProjectCrisis and Risk Communication Crisis
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 groupTuba City, Arizona, DisposalFourthN V O 1 8 7 +NewAugustr* R $ s-
On the Equivalence of Linear Programming Problems and Zero-Sum ...
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 ...
[Semantic equivalence of the Brazilian Portuguese version of the "Body Change Inventory"].
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
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
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
Power-system dynamic equivalents:coherency recognition via the rate of change of
Catholic University of Chile (Universidad CatĂłlica 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
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
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.
Periodic equivalence ratio modulation method and apparatus for controlling combustion instability
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.
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.
Method for detecting water equivalent of snow using secondary cosmic gamma radiation
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.
Method for detecting water equivalent of snow using secondary cosmic gamma radiation
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.
On the Expression Complexity of Equivalence and Isomorphism of Primitive Positive Formulas
Valeriote, Matt
and existential quantification. The class of primitive positive formulas includesÂand is essentially equivalent to in the study of the constraint satisfaction problem (CSP), which can be defined #12;as the problem of deciding
On the Expression Complexity of Equivalence and Isomorphism of Primitive Positive Formulas
Valeriote, Matt
and existential quantification. The class of primitive positive formulas includesÂand is essentially equivalent to in the study of the constraint satisfaction problem (CSP), which can be defined Dagstuhl Seminar Proceedings
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
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
An Equivalent Network for Load-Flow Analysis of Power Systems
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...
Design of oversampling current steering DAC with 640MHz equivalent clock frequency
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...
Test of Special Relativity and Equivalence Principle from Neutrinoless Double Beta Decay
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.
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
Clarke, Edmund M.
a right-invariant equivalence relation E (on , for a given ) of finite index. Let S be the (finite) set
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
ccsd-00001492,version1-27Apr2004 THE CORANK IS INVARIANT UNDER BLOW-NASH EQUIVALENCE
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
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
Derivation of Accident-Specific Material-at-Risk Equivalency Factors
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.
The equivalence theorem in the generalized gravity of f(R)-type and canonical quantization II
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.
Variational equivalence between Ginzburg-Landau, XY spin systems and screw dislocations energies
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.
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.
How many invariant polynomials are needed to decide local unitary equivalence of qubit states?
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.
On Topological Equivalence of Linear Flows with Applications to Bilinear Control Systems
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
Equivalence of Control Systems with Linear Systems on Lie Groups and Homogeneous Spaces
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
CARTESIAN CLOSED 2-CATEGORIES AND PERMUTATION EQUIVALENCE IN HIGHER-ORDER REWRITING
Paris-Sud XI, UniversitĂ© 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
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
The equivalence principle and the relative velocity of local inertial frames
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.
Creating dynamic equivalent PV circuit models with impedance spectroscopy for arc-fault modeling.
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.
Wave-Based Sound Propagation in Large Open Scenes using an Equivalent Source Formulation
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
On Enumeration of Polynomial Equivalence Classes and Their Application to MPKC
. 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
An equivalent circuit for the Brushless Doubly Fed Machine (BDFM) including parameter estimation
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
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
Characterizing motion contour detection mechanisms and equivalent mechanisms in the luminance domain
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
Evaluation of Equivalent Static Wind Loads on Buildings Xinzhong Chen1
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
Equivalence of the Fleming-Viot and Look-down models of Muller's ratchet
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
Modeling proton intensity gradients and radiation dose equivalents in the inner
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
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
Equivalent hydraulic conductivity of an experimental stratigraphy: Implications for basin-scale flow
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
Capacitive Behavior of HF Power Transformers: Global Approach to Draw Robust Equivalent Circuits
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
Copyright 2013 IEEE. Reprinted, with permission from: Line Limit Preserving Power System Equivalent
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
Creep Prediction Using The Non-Linear Strain Energy Equivalence Theory
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
Simple proof of equivalence between adiabatic quantum computation and the circuit model
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.
Zero-knowledge Test of Vector Equivalence and Granulation of User Data with Privacy
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
Effects of fuel type and equivalence ratios on the flickering of triple flames
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)
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
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
Electromagnetic wave propagation in an active medium and the equivalent SchrĂ¶dinger 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
Paris-Sud XI, UniversitĂ© 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
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
An insight on the Proof of Orientifold Planar Equivalence on the Lattice
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.
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.
Breakdown of the equivalence between gravitational mass and energy for a composite quantum body
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
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.
What are the Hidden Quantum Processes In Einstein's Weak Principle of Equivalence?
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 ...
The Equivalent Thermal Resistance of Tile Roofs with and without Batten Systems
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.
Galactic interstellar abundance surveys with IUE. II. The equivalent widths and column densities
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.
Gravitational ultrarelativistic spin-orbit interaction and the weak equivalence principle
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
de Sitter space and the equivalence between f(R) and scalar-tensor gravity
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.
ON NEARLY EQUIVALENT FORMS FOR GSp(4) DANIEL FILE AND RAMIN TAKLOO-BIGHASH
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
On the Equivalence of the Dirac Equation Between General Relativity and Teleparallel Gravity
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.
Gravitational radiation fields in teleparallel equivalent of general relativity and their energies
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.
Untwisting Noncommutative R^d and the Equivalence of Quantum Field Theories
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.
Lunar Laser Ranging Tests of the Equivalence Principle with the Earth and Moon
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.
Reflector modelling of small high leakage cores making use of multi-group nodal equivalence theory
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)
Solar system and equivalence principle constraints on f(R) gravity by chameleon approach
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
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.
Formulating a simplified equivalent representation of distribution circuits for PV impact studies.
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.
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.
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.
Johan S. Hřye; 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.
Noise Equivalent Counts Based Emission Image Reconstruction Algorithm of Tomographic Gamma Scanning
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.
Equivalence and Hermiticity of Dirac Hamiltonians in the Kerr gravitational field
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).
XRD, lead equivalent and UV-VIS properties study of Ce and Pr lead silicate glasses
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.
Null Result for the Violation of Equivalence Principle with Free-Fall Rotating Gyroscopes
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.
A Lorentz-Poincaré type interpretation of the Weak Equivalence Principle
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.
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.
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.
The improvement of the method of equivalent cross section in HTR
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)
Euler-Bernoulli beams from a symmetry standpoint-characterization of equivalent equations
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...
Does the Equivalence between Gravitational Mass and Energy Survive for a Composite Quantum Body?
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.
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
The equivalent electrical permittivity of gas-solid mixtures at intermediate solid volume fractions.
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).
Determination of explosive blast loading equivalencies with an explosively driven shock tube
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.
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}
Convergence analysis of a CMFD method based on generalized equivalence theory
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)
Lineal energy calibration of mini tissue-equivalent gas-proportional counters (TEPC)
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%.
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.
Tunneling through equivalent multihumped fission barriers: Some implications for the actinide nuclei
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.
Maxwell's theory on a post-Riemannian spacetime and the equivalence principle
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.
A new online detector for estimation of peripheral neutron equivalent dose in organ
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 Autňnoma 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.
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–Lňeve (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.
Solvent Blending Strategy to Upgrade MCU CSSX Solvent to Equivalent Next-Generation CSSX Solvent
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.
DOE Radiation Exposure Monitoring System (REMS) Data Update
Rao, Nimi; Hagemeyer, Derek
2012-05-05T23:59:59.000Z
This slide show presents the 2011 draft data for DOE occupational radiation exposure.Clarification is given on Reporting Data regarding: reporting Total Organ Dose (TOD); reporting Total Skin Dose (TSD), and Total Extremity Dose (TExD) ; and Special individuals reporting.
REMS Program Policy for submitting of Personally Identifiable Information
Broader source: Energy.gov (indexed) [DOE]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010In addition to 1 |D I S P U TPurposeRPSProgram
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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 groupTuba City, Arizona, DisposalFourthNrr-osams ADMIN551 - g 76 IA//) ofim1
An epidermal equivalent assay for identification and ranking potency of contact sensitizers
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, Universitŕ 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, Universitŕ 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.
New Limits for the Violation of the Equivalence Principle in the Solar-Reactor Neutrino Sector
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...
Turing-equivalent automata using a fixed-size quantum memory
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...
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...
Expanded solar-system limits on violations of the equivalence principle
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.
Determining equivalent damage loading for full-scale wind turbine blade fatigue tests
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.
Test of the equivalence principle for ordinary matter falling toward dark matter
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.
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
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
A REMARK ON THE HOMOTOPY EQUIVALENCE Abstract. Being a maximal compact subgroup of SLn C, SUn is
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
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.
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
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.
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
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
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.
see 2010, January 18 -21, 2010, Siegen, Germany Paper 4 On the Equivalence of Sudan-Decoding and
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
Turing-equivalent automata using a fixed-size quantum memory
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.
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
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.
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
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
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.
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.
Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?
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.
Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?
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.
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.
Equivalent Circuit Description of Non-compensated n-p Codoped TiO2 as Intermediate Band Solar Cells
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.
Equivalent Circuit Description of Non-compensated n-p Codoped TiO2 as Intermediate Band Solar Cells
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...
Matrix analysis applied to the equivalent circuits of ?, †, and o-components of three-phase systems
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...
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.
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.
A measurement of the muon-induced neutron yield in lead at a depth of 2850 m water equivalent
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.
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.
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
Equivalence of effective superpotentials
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.
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
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
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,
X-Ray Reflection Nebulae with Large Equivalent Widths of Neutral Iron Ka Line in the Sgr C Region
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).
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...
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.
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.
Deficiency of large equivalent width Lyman-alpha emission in luminous Lyman break galaxies at z~5-6?
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.
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.
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).
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 $\
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.
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
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.
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.
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.
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 ...
DOE 2012 Occupational Radiation Exposure October 2013
none,
2012-02-02T23:59:59.000Z
The U.S. Department of Energy (DOE) Office of Analysis within the Office of Health, Safety and Security (HSS) publishes the annual DOE Occupational Radiation Exposure Report to provide an overview of the status of radiation protection practices at DOE (including the National Nuclear Security Administration [NNSA]). The DOE 2012 Occupational Radiation Exposure Report provides an evaluation of DOE-wide performance regarding compliance with Title 10, Code of Federal Regulations (C.F.R.), Part 835, Occupational Radiation Protection dose limits and as low as reasonably achievable (ALARA) process requirements. In addition, the report provides data to DOE organizations responsible for developing policies for protection of individuals from the adverse health effects of radiation. The report provides a summary and an analysis of occupational radiation exposure information from the monitoring of individuals involved in DOE activities. Over the past 5-year period, the occupational radiation exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. As an indicator of the overall amount of radiation dose received during the conduct of operations at DOE, the report includes information on collective total effective dose (TED). The TED is comprised of the effective dose (ED) from external sources, which includes neutron and photon radiation, and the internal committed effective dose (CED), which results from the intake of radioactive material into the body. The collective ED from photon exposure decreased by 23% between 2011 and 2012, while the neutron dose increased by 5%. The internal dose components of the collective TED decreased by 7%. Over the past 5-year period, 99.99% of the individuals receiving measurable TED have received doses below the 2 roentgen equivalent in man (rems) (20 millisievert [mSv]) TED administrative control level (ACL), which is well below the DOE regulatory limit of 5 rems (50 mSv) TED annually. The occupational radiation exposure records show that in 2012, DOE facilities continued to comply with DOE dose limits and ACLs and worked to minimize exposure to individuals. The DOE collective TED decreased 17.1% from 2011 to 2012. The collective TED decreased at three of the five sites with the largest collective TED. u Idaho Site – Collective dose reductions were achieved as a result of continuing improvements at the Advanced Mixed Waste Treatment Project (AMWTP) through the planning of drum movements that reduced the number of times a container is handled; placement of waste containers that created highradiation areas in a centralized location; and increased worker awareness of high-dose rate areas. In addition, Idaho had the largest decrease in the total number of workers with measurable TED (1,143 fewer workers). u Hanford Site (Hanford) – An overall reduction of decontamination and decommissioning (D&D) activities at the Plutonium Finishing Plant (PFP) and Transuranic (TRU) retrieval activities resulted in collective dose reductions. u Savannah River Site (SRS) – Reductions were achieved through ALARA initiatives employed site wide. The Solid Waste Management Facility used extended specialty tools, cameras and lead shield walls to facilitate removal of drums. These tools and techniques reduce exposure time through improved efficiency, increase distance from the source of radiation by remote monitoring, shield the workers to lower the dose rate, and reduce the potential for contamination and release of material through repacking of waste. Overall, from 2011 to 2012, there was a 19% decrease in the number of workers with measurable dose. Furthermore, due to a slight decrease in both the DOE workforce (7%) and monitored workers (10%), the ratio of workers with measurable doses to monitored workers decreased to 13%. Another primary indicator of the level of radiation exposure covered in this report is the average measurable dose, which normalizes the collective dose over the population of workers who actually received a measurable dose. The average measurable TED in
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.
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.
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.
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.
MODELING INSTABILITY IN THE CONTROL SYSTEM FOR HUMAN RESPIRATION: APPLICATIONS TO INFANT NON-REM
, the respiratory control system varies the ventila- tionrate inresponse to the levels ofCO2 and O2 in the body the negative feedback nature of ventilation control and CO2 regulation 43 . Quantitative studies began of CO2 regulation using control theory was given by Grodins et al in a seminal paper in 1954 37
ORISE Video: What are the differences between rad/gray and rem/sievert in
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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:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire3627 FederalTransformers1 DIRECTORJoe Lake One-Timemeasuring
Instructions for Preparing Occupational Exposure Data for Submittal to REMS Repository
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 33Frequently Asked Questions for DOEtheInspection Report:
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.
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.
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.
Dose-equivalent neutron dosimeter
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.
Asymptotic equivalence of impulsive systems
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.
APPROXIMATELY UNITARILY EQUIVALENT MORPHISMS AND ...
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.
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.
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.
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
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.
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.
The investigation of spices by use of instrumental neutron activation analysis
Wise, Jatara Rob
2008-10-10T23:59:59.000Z
is the committed dose equivalent for ingestion, ALI N is the non-stochastic annual limit on intake for uranium (5E+05 Bq) based on 50 rems to the bone surfaces (ICRP 1979). The CEDE values were calculated using the following formula: nullnullnullnull null... for uranium (7E+05 Bq) based on 5 rems (ICRP 1979). Table 5 shows the CDE and CEDE values for uranium dose from spice ingestion. Table 5. Uranium dose. Sample Label CDE (mSv) CEDE (mSv) Oregano O 1 1.98E-05 1.41E-06 Paprika P 4 8.64E-06 6.17E-07 Sum...
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.
Equivalence in Ventilation and Indoor Air Quality
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,
Equivalence in Ventilation and Indoor Air Quality
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.
On an Equivalence between PLSI and LDA
Girolami, M.
Girolami,M. Kaban,A. 26th ACM Conference on Research and Development in Information Retrieval, SIGIR pp 433-434
Deciding DPDA Equivalence is Primitive Recursive
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
Deciding DPDA Equivalence is Primitive Recursive
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 SÂ´enizergues's use of weights, and the idea was developed from
On Process Equivalence = Equation Solving in CCS
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...
SELF HOMOTOPY EQUIVALENCES WHICH INDUCE THE ...
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
A Beautiful Characterization of Equivalence Relations
Verhoeff, Tom
and Computing Science Eindhoven University of Technology P.O. Box 513, 5600 MB EINDHOVEN, The Netherlands E
Operationally-Based Theories of Program Equivalence
Pitts, Andrew
programming by several people: see Dybjer and Sander (1989); Abramsky (1990); Howe (1989, Howe (1996); Egidi
Equivalence in Ventilation and Indoor Air Quality
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.
Equivalence in Ventilation and Indoor Air Quality
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
Time-temperature equivalence in Martensite tempering
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.
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...
Approximately unitarily equivalent morphisms and inductive limit ...
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.
Asymptotic Unitary Equivalence in KK-Theory
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],.
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...
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
Property:Equivalent URI | Open Energy Information
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
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
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.
Portable neutron spectrometer and dosimeter
Waechter, David A. (Los Alamos, NM); Erkkila, Bruce H. (Los Alamos, NM); Vasilik, Dennis G. (Los Alamos, NM)
1985-01-01T23:59:59.000Z
The disclosure relates to a battery operated neutron spectrometer/dosimeter utilizing a microprocessor, a built-in tissue equivalent LET neutron detector, and a 128-channel pulse height analyzer with integral liquid crystal display. The apparatus calculates doses and dose rates from neutrons incident on the detector and displays a spectrum of rad or rem as a function of keV per micron of equivalent tissue and also calculates and displays accumulated dose in millirads and millirem as well as neutron dose rates in millirads per hour and millirem per hour.
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
Eilers, SĂ¸ren
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
Scanning Our Past Origins of the Equivalent Circuit Concept: The Current-Source Equivalent
supporter of the Nazis (he first met Hitler in 1926) and being anti-Semitic to the extreme (so much so he
Dose reduction at nuclear power plants
Baum, J.W.; Dionne, B.J.
1983-01-01T23:59:59.000Z
The collective dose equivalent at nuclear power plants increased from 1250 rem in 1969 to nearly 54,000 rem in 1980. This rise is attributable primarily to an increase in nuclear generated power from 1289 MW-y to 29,155 MW-y; and secondly, to increased average plant age. However, considerable variation in exposure occurs from plant to plant depending on plant type, refueling, maintenance, etc. In order to understand the factors influencing these differences, an investigation was initiated to study dose-reduction techniques and effectiveness of as low as reasonably achievable (ALARA) planning at light water plants. Objectives are to: identify high-dose maintenance tasks and related dose-reduction techniques; investigate utilization of high-reliability, low-maintenance equipment; recommend improved radioactive waste handling equipment and procedures; examine incentives for dose reduction; and compile an ALARA handbook.
none,
2013-01-01T23:59:59.000Z
This slide-show presents the 2012 draft data for DOE occupational radiation exposure, compares those data with last year and the last five years, and clarifies reporting data.
Liquid Effluent Retention Facility (LERF) Final Hazard Category Determination
HUTH, L.L.
2001-06-06T23:59:59.000Z
The Liquid Effluent Retention Facility was designed to store 242-A Evaporator process condensate and other liquid waste streams for treatment at the 200 East Area Effluent Treatment Facility. The Liquid Effluent Retention Facility has been previously classified as a Category 3 Nonreactor Nuclear Facility. As defined in Hazard Categorization and Accident Analysis Techniques for Compliance with DOE Order 5480.23, Nuclear Safety Analysis Reports (DOE 1992, DOE 1997), Category 3 Nuclear Facilities have the potential for significant localized (radiological) consequences. However, based on current facility design, operations, and radioactive constituent concentrations, the Liquid Effluent Retention Facility does not have the potential for significant localized (radiological) consequences and is categorized as a Radiological Facility. This report documents the final hazard categorization process performed in accordance with DOE Order 5480.23, Nuclear Safety Analysis Reports. This report describes the current configuration and operations of the Liquid Effluent Retention Facility. Also included is a preliminary hazard categorization, which is based on current and proposed radioactive and hazardous material inventories, a preliminary hazards and accident analysis, and a final hazard category determination. The results of the hazards and accident analysis, based on the current configuration and operations of the Liquid Effluent Retention Facility and the current and proposed radioactive and hazardous material inventories, demonstrate that the Liquid Effluent Retention Facility does not have the potential for significant localized (radiological) consequences. Based on the final hazard category analysis, the Liquid Effluent Retention Facility is a Radiological Facility. The final hazard category determination is based on a comparative evaluation of the consequence basis for the Category 3 threshold quantities to the calculated consequences for credible releases The basis for the Category 3 threshold quantities is 10 rem-equivalent man at 30 meters (98 feet) (DOE 1992, DOE 1997). The calculated 12 hour consequences to an individual located at 30 meters (98 feet) for two credible scenarios, spray release and a pool release, are 3.50 rem and 1.32 rem, respectively, which based upon the original hazard categorization criteria (DOE 1992) classified the Liquid Effluent Retention Facility as a Radiological Facility. Comparison of the calculated 24 hour consequences to an individual located at 30 meters (98 feet) for two credible scenarios, spray release and a pool release, 7.00 rem and 2.64 rem respectively, confirmed the Liquid Effluent Retention Facility classification as a Radiological Facility under the current hazard categorization criteria (DOE 1997). Both result in dose consequence values less than the allowable, 10 rem, meeting the requirements for categorizing the Liquid Effluent Retention Facility as a Radiological Facility.
Occupational dose estimates for a monitored retrievable storage facility
Harty, R.; Stoetzel, G.A.
1986-06-01T23:59:59.000Z
Occupational doses were estimated for radiation workers at the monitored retrievable storage (MRS) facility. This study provides an estimate of the occupational dose based on the current MRS facility design, examines the extent that various design parameters and assumptions affect the dose estimates, and identifies the areas and activities where exposures can be reduced most effectively. Occupational doses were estimated for both the primary storage concept and the alternate storage concept. The dose estimates indicate the annual dose to all radiation workers will be below the 5 rem/yr federal dose equivalent limit. However, the estimated dose to most of the receiving and storage crew (the workers responsible for the receipt, storage, and surveillance of the spent fuel and its subsequent retrieval), to the crane maintenance technicians, and to the cold and remote maintenance technicians is above the design objective of 1 rem/yr. The highest annual dose is received by the riggers (4.7 rem) in the receiving and storage crew. An indication of the extent to which various design parameters and assumptions affect the dose estimates was obtained by changing various design-based assumptions such as work procedures, background dose rates in radiation zones, and the amount of fuel received and stored annually. The study indicated that a combination of remote operations, increased shielding, and additional personnel (for specific jobs) or changes in operating procedures will be necessary to reduce worker doses below 1.0 rem/yr. Operations that could be made at least partially remote include the removal and replacement of the tiedowns, impact limiters, and personnel barriers from the shipping casks and the removal or installation of the inner closure bolts. Reductions of the background dose rates in the receiving/shipping and the transfer/discharge areas may be accomplished with additional shielding.
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...
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,...
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....
Equivalence of an Approximate Linear Programming Bound with the ...
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, ...
Layer equivalency factors and deformation characteristics of flexible pavements
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...
Assessing Equivalent Viscous Damping Using Piping System test Results
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.
On equivalence relationships between classification and ranking algorithms
Ertekin, Seyda
We demonstrate that there are machine learning algorithms that can achieve success for two separate
Part-based Probabilistic Point Matching using Equivalence Constraints
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 ...
On Equivalence Relationships Between Classification and Ranking Algorithms
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 ...
Equivalence of trans paths in ion channels Juan Alvarez*
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
Semantical Characterizations and Complexity of Equivalences in Answer
Fink, Michael
. 224Â238, 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
Stretching rates and equivalent length near the tropopause
Legras, Bernard
the tropopause, J. Geophys. Res., 108(D13), 4394, doi:10.1029/2002JD002988, 2003. 1. Introduction [2] Transport
Calibration and equivalency analysis of image plate scanners
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.
SDL versus C Equivalence Checking Malek Haroud1
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
Stability of the Gauge Equivalent Classes in Inverse Stationary ...
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 ...
An equivalent complex permeability model for litz-wire windings
-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
Online Equivalence Learning Through A Quasi-Newton Method
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
From the equivalence principle to market consistent valuation Thomas Knispela
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
Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces
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
DISCUSSIONS AND CLOSURES Discussion of "Equivalent Static Wind
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
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...
Physical Sciences Facility Air Emission Control Equivalency Evaluation
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.
Computing action equivalences for planning under time-constraints
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 ...
Nanofiber composite membranes with low equivalent weight perfluorosulfonic acid polymers
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
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,...
Cultural evolution is not equivalent to Darwinian evolution
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.
Macroencapsulation Equivalency Guidance for Classified Weapon Components and NNSSWAC Compliance
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.
The Complexity of Finding Top-Toda-Equivalence-Class Members
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
The Complexity of Finding Top-Toda-Equivalence-Class Members
Zaki, Mohammed Javeed
CCR-9322513, INT-9815095/DAAD-315-PPP-gÂ¨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
FIBERWISE KK-EQUIVALENCE OF CONTINUOUS FIELDS OF C ...
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
Turbulence, orbit equivalence, and the classification of nuclear C
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?- ...
Dosimetric equivalence of nonstandard HDR brachytherapy catheter patterns
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.
Intern equivalency at the Energy Resources Conservation Board: a report
Collins, Gerald, 1949-
2013-03-13T23:59:59.000Z
.................................................1 Chapter II - Engineering Work Experience.............................. 3 Amoco Canada Petroleum Company Limited ......................... 3 Angus G. MacKenzie Mining Consultants............................6 Energy Resources Conservation Board...........................................................................65 CHAPTER I INTRODUCTION The purpose of this report is to establish that the author's work experience prior to entering the Doctor of Engineering program meets the objectives of the internship. These objectives are: 1. to enable the student...
Alaska--Onshore Natural Gas Plant Liquids 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 40CoalLease(Billion CubicPotentialNov-14 Dec-14 Jan-1538,469 39,194
NGPL Production, Gaseous Equivalent at Processing Plants (Summary)
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, Gaseous2,408
NGPL Production, Gaseous Equivalent at Processing Plants (Summary)
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 40CoalLease(Billion2,12803andYear Jan Feb Mar AprYear Jan1,185 11,206024,082
CP Violation, Neutral Currents, and Weak Equivalence Val L. Fitch
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C o . C l a r8.0 - HOISTING30, 2006COV
Effects of Ignition Quality and Fuel Composition on Critical Equivalence
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisory Board ContributionsreductionRefineries |Endurance ||Ratio |
Designating Responsibility for Equivalencies or Exemptions from Department
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration wouldDECOMPOSITIONPortalToDepth ProfileLaboratory Design
Pulfrey, David L.
--parametersparameters 1. fT is related to the short-circuit current gain 2. |id/ig|2 = |y23/y33|2 3. Extrapolated f. fT is related to the short-circuit current gain 4. |id/ig|2 = |-z23/z33|2 5. Extrapolated f--parametersparametersSec. 14.8 y-parameters are measured from currents under various short-circuit conditions z
D. E. Lewis D. A. Hagemeyer Y. U. McCormick
2012-07-07T23:59:59.000Z
This report summarizes the occupational exposure data that are maintained in the U.S. Nuclear Regulatory Commission’s (NRC) Radiation Exposure Information and Reporting System (REIRS). The bulk of the information contained in the report was compiled from the 2010 annual reports submitted by five of the seven categories of NRC licensees subject to the reporting requirements of 10 CFR 20.2206. Because there are no geologic repositories for high-level waste currently licensed and no NRC-licensed low-level waste disposal facilities currently in operation, only five categories will be considered in this report. The annual reports submitted by these licensees consist of radiation exposure records for each monitored individual. These records are analyzed for trends and presented in this report in terms of collective dose and the distribution of dose among the monitored individuals. Annual reports for 2010 were received from a total of 190 NRC licensees. The summation of reports submitted by the 190 licensees indicated that 192,424 individuals were monitored, 81,961 of whom received a measurable dose. When adjusted for transient workers who worked at more than one licensee during the year, there were actually 142,471 monitored individuals and 62,782 who received a measurable dose. The collective dose incurred by these individuals was 10,617 person-rem, which represents a 12% decrease from the 2009 value. This decrease was primarily due to the decrease in collective dose at commercial nuclear power reactors, as well as a decrease in the collective dose for most of the other categories of NRC licensees. The number of individuals receiving a measurable dose also decreased, resulting in an average measurable dose of 0.13 rem for 2010. The average measurable dose is defined as the total effective dose equivalent (TEDE) divided by the number of individuals receiving a measurable dose. In calendar year 2010, the average annual collective dose per reactor for light water reactor (LWR) licensees was 83 person-rem. This represents a 14% decrease from the value reported for 2009 (96 person-rem). The decrease in collective dose for commercial nuclear power reactors was due to an 11% decrease in total outage hours in 2010. During outages, activities involving increased radiation exposure such as refueling and maintenance are performed while the reactor is not in operation. The average annual collective dose per reactor for boiling water reactors (BWRs) was 137 personrem for 35 BWRs, and 55 person-rem for 69 pressurized water reactors (PWRs). Analyses of transient individual data indicate that 29,333 individuals completed work assignments at two or more licensees during the monitoring year. The dose distributions are adjusted each year to account for the duplicate reporting of transient individuals by multiple licensees. The adjustment to account for transient individuals has been specifically noted in footnotes in the figures and tables for commercial nuclear power reactors. In 2010, the average measurable dose per individual for all licensees calculated from reported data was 0.13 rem. Although the average measurable dose per individual from data submitted by licensees was 0.13 rem, a corrected dose distribution resulted in an average measurable dose per individual of 0.17 rem.
Radiation Exposure Monitoring Systems Data Reporting Guide
Broader source: Energy.gov [DOE]
Instructions for preparing occupational exposure data for submittal to the Radiation Exposure Monitoring System (REMS) repository.
DOEEA-1203 Environmental Assessment
Broader source: Energy.gov (indexed) [DOE]
eve1 m i xed waste low-level waste National Environmental Policy Act o f 1969 performance assessment Resource Conservation and Recovery Act o f 1976 roentgen equi valent man...
Distribution ICategory: General Reactor Technology
Shlyakhter, Ilya
--- Distribution ICategory: General Reactor Technology (UC-520) ANl-92/23 AR(;ONNE NATIONAL, progressively by Huygens, Maxwell and Roentgen, mankind has learned to observe it, measure it, control it
Sayre, Nathan
profesiÂ´on de ciencia del pastizal en Estados Unidos tiene sus raÂ´ices en el sobrepastoreo y recurrentes y producciÂ´on de alimentos y fibras. DespuÂ´es de un siglo de ciencia y polÂ´iticas hay dos perspectivas normalmente se aplican en la ciencia del pastizal. Dimensionar los resultados de la ciencia no es un proceso
means for rural communities to adapt to changing land cover and climate. Resumen La mayor parte de los identificacio´n y desarrollo de estos. Estas estrat´egicas pueden ofrecer importantes medios en las comunidades rurales para adaptar en la cambiante cobertura del suelo y el clima. Key Words: animal behavior, cattle
management, assessment, monitoring, off-highway vehicles, oil and gas, rangeland health INTRODUCTION Adaptive managers are left with little more than observations and perceptions to support management decisions processes but stratification based on apparent impact did not. Analysis of the repeatability of IIRH applied
SIMON FRASER UNIVERSITY SCHOOL OF RESOURCE AND ENVIRONMENTAL MANAGEMENT
is available for the following REM course: REM 625-5 (Burnaby) Risk Assessment and Decision Analysis and quantitative methods for decision analysis, statistics, and computer programming (MS Excel) that you can
Radiation Exposure Monitoring Systems Program Policy for Submitting of PII information
Broader source: Energy.gov [DOE]
The REMS Program Policy for submitting of PII information in accordance with the Office of Environment, Health, Safety and Security (EHSS) under DOE Order 231.1B and the REMS Reporting Guide.
MFR PAPER 999 A new method has been devised
, however. can co ntract the disease merely by rem a inin g in supersaturated surface waters. An example
Stanford University
.4" 0.4" 0.5" with hole * 1 wood base * 1 3" steel shaft * 2 retaining rings * 2 bronze oil paddle is available in the lab for inspection, and you will be assembling most of your device
Dayley, L
2000-01-01T23:59:59.000Z
The requirements for the performance of radiological design reviews are codified in 10CFR835, Occupational Radiation Protection. The basic requirements for the performance of ALARA design reviews are presented in the Hanford Site Radiological Control Manual (HSRCM). The HSRCM has established trigger levels requiring radiological reviews of non-routine or complex work activities. These requirements are implemented in site procedures HNF-PRO-1622 and 1623. HNF-PRO-1622 Radiological Design Review Process requires that ''radiological design reviews [be performed] of new facilities and equipment and modifications of existing facilities and equipment''. In addition, HNF-PRO-1623 Radiological Work Planning Process requires a formal ALARA Review for planned activities that are estimated to exceed 1 person-rem total Dose Equivalent (DE). The purpose of this review is to validate that the original design for the PFP Cementation Process ensures that the principles of ALARA (As Low As Reasonably Achievable) were included...
DEMONSTRATION OF EQUIVALENCY OF CANE AND SOFTWOOD BASED CELOTEX FOR MODEL 9975 SHIPPING PACKAGES
Watkins, R; Jason Varble, J
2008-05-27T23:59:59.000Z
Cane-based Celotex{trademark} has been used extensively in various Department of Energy (DOE) packages as a thermal insulator and impact absorber. Cane-based Celotex{trademark} fiberboard was only manufactured by Knight-Celotex Fiberboard at their Marrero Plant in Louisiana. However, Knight-Celotex Fiberboard shut down their Marrero Plant in early 2007 due to impacts from hurricane Katrina and other economic factors. Therefore, cane-based Celotex{trademark} fiberboard is no longer available for use in the manufacture of new shipping packages requiring the material as a component. Current consolidation plans for the DOE Complex require the procurement of several thousand new Model 9975 shipping packages requiring cane-based Celotex{trademark} fiberboard. Therefore, an alternative to cane-based Celotex{trademark} fiberboard is needed. Knight-Celotex currently manufactures Celotex{trademark} fiberboard from other cellulosic materials, such as hardwood and softwood. A review of the relevant literature has shown that softwood-based Celotex{trademark} meets all parameters important to the Model 9975 shipping package.
Gandy, Woodrow Wheeler
1952-01-01T23:59:59.000Z
are functions of independent variables only, usually the time. The circuital d i f ? ferential equations are linear and are usually less d if ? ficult to solve than those of the nonlinear systems in which the circuit parameters change with the dependent... of charge? ; i . e . , that one cannot produce or destroy charge, then one may write (4) By use of the Divergence Theorem^ one UAS write f * /s Q *J = J V.J duT?I Q Substituting (5) in (4) and rewriting, one obtains i A (V*J + i $ ) d T = 0...
On Certainty Equivalence Measurement Feedback Power Gain Control of Nonlinear Systems
Helton, J. William
is impractical, but that controlling into some modest size R region about O is natural (eg. arguably compressor oscillate around O, but do not converge to it. H 1 control is unsuited to such problems since achieveÂ ing the actual power dissipating controllers may be very well suited to oscillatory problems. G Km w z y u Figure
H. Hernández-Saldańa
2012-12-21T23:59:59.000Z
A calculation of the classical analogue for the quantum wave function and local denity of states, in energy representation, is presented for simple Hamiltonian systems. Sucha analogous were proposed by M. V. Berry and A. voros considering the intersection of energy shells of two systems as the only semiclassical object which can give support to eigenfunctions. One of them is the system unser study and the other is the "unperturbed system" used to express the wave functions, even in the case that both systems are not close. For simple systems and as for scalable ones analytical expressions are obtainable. In the present work we offer examples of both.
a-150 plastic-equivalent gas: Topics by E-print Network
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
representative example, and introduce a new parameter characterizing the level of small scale clustering in these scenarios. We show that viable Generalized Chaplygin Gas...
Intern equivalency at the office of the program manager XM1 Tank systems: an internship report
Root, Paul Michael, 1944-
2013-03-13T23:59:59.000Z
resulted in many problems. A drawing of the engine is at Figure 2. The engine had been developed specifically for
Let A be any language. Define the right-equivalence relation A on
Massachusetts at Amherst, University of
= {a, b}; A1 = w #b(w) 0 (mod 2) L34: Myhill-Nerode Theorem CS250: Discrete Math for Computer Science #12;x A y w (xw A yw A) Let = {a, b}; A1 = w #b(w) 0 (mod 2) A1 a b A1 ab L34: Myhill-Nerode Theorem CS250: Discrete Math for Computer Science #12;x A y w (xw A yw A) Let = {a, b}; A1 = w #b
Neural Network Modeling of Structured Packing Height Equivalent to a Theoretical Plate
Eldridge, R. Bruce
-transfer ef- ficiency in structured packing. Column designers use the HETP to calculate the height of packing properties of the chemical system, and the operating conditions of the column. In a previous paper, Whaley et a detailed investigation of the parameters which impact the performance of structured packing in distillation
On the equivalence of algebraic conditions for convexity and quasiconvexity of polynomials
Ahmadi, Amir Ali
This paper is concerned with algebraic relaxations, based on the concept of sum of squares decomposition, that give sufficient conditions for convexity of polynomials and can be checked efficiently with semidefinite ...
Zu?n?iga Schroder, Humberto Angel
2009-01-01T23:59:59.000Z
Standards are necessary for an efficient functioning of the market and their regulation is an increasingly important area of law. Such is their importance that today it is possible to find thousands of standards developed ...
Tantama, Mathew
The subunits of the muscle-type nicotinic acetylcholine receptor (AChR) are not uniformly oriented in the resting closed conformation: the two ? subunits are rotated relative to its non-? subunits. In contrast, all the ...
Synergistic Use of Remote Sensing for Snow Cover and Snow Water Equivalent Estimation
Krakauer, Nir Y.
14 15 16 17 18 19 20 21 #12;Snow is a key component of Earth's energy balance, climate NOAA-Cooperative Remote Sensing Science and Technology Center (NOAA-CREST), City College of New York
Equivalence Is In The Eye Of The Beholder Yuri Gurevich 1 and James K. Huggins 1
Huggins, Jim
in a semiformal language reminiscent of CSP [9] which we call PseudoCSP. The first program, which we#er. It gives rise to a columnwise decomposition of the graph of moves, as shown in Figure 5. In PseudoCSP and C pcsp , ``in ?'' is essentially a command to place the current input into the given slot, and ``out
Reese, Erica Dawn
2001-01-01T23:59:59.000Z
RISK ASSESSMENT O F C O M P L E X M I X T U R E S : D E V E L O P M E N T O F T O X I C E Q U I V A L E N C Y F A C T O R S (TEFs) F O R P O L Y C Y C L I C A R O M A T I C H Y D R O C A R B O N S (PAHs) A Thesis by E R I C A D A W N R E E S E... Submitted to the Office o f Graduate Studies o f Texas A & M University in partial fulfillment of the requirements for the degree o f M A S T E R O F S C I E N C E December 2001 Major Subject: C i v i l Engineering RISK A S S E S S M E N T O F C O M P...
1-Copy Equivalence: Atomic Commit Versus Atomic Broadcast in Termination Protocols
Muńoz, Francesc
-Fuertes, J. M. Bernab´e-Gisbert, R. de Juan-Mar´in, F. D. Mu~noz-Esco´i Instituto Tecnol´ogico de Inform. I. Ruiz-Fuertes, J. M. Bernab´e-Gisbert, R. de Juan-Mar´in, F. D. Mu~noz-Esco´i Instituto Tecnol
Muńoz, Francesc
. Mu~noz-Esco´i2 1 Depto. de Ing. Matem´atica e Inform´atica 2 Inst. Univ. Mixto Tecnol´ogico de Inform-Salinas1 , J. R. Gonz´alez de Mend´ivil1 , F. D. Mu~noz-Esco´i2 1 Depto. de Ing. Matem´atica e Inform
Quasi-Monte Carlo Methods in Financial Engineering: An Equivalence Principle and Dimension Reduction
Blennerhassett, Peter
, Beijing 100084, China, 2 School of Mathematics, University of New South Wales, Sydney 2052, Australia, 3, namely, weighted arithmetic Asian options (including American Asian options) based on the weighted tools. Many problems in derivative pricing can be formulated as high-dimensional integrals (the
A Lattice-Based Equivalent Circuit Model for Frequency Selective Surfaces
Rolando, David
2014-12-11T23:59:59.000Z
This work introduces a novel analytical framework for designing and synthesizing frequency selective surfaces (FSSs). In this framework, referred to as the “lattice model”, a periodic FSS is represented as an infinite lattice of interconnected...
Intern equivalency at the office of the program manager XM1 Tank systems: an internship report
Root, Paul Michael, 1944-
2013-03-13T23:59:59.000Z
-academic environment in which he will become aware of his employer's approach to the solution of problems, especially those of a non-technical nature. The author served in the Automotive Branch of the Systems Engineering Division and was the Program Manager... career, the author had spent three and one half years in the Automotive Branch of the Systems Engineering Division, Office of the Program Manager, XM1 Tank Systems (now Ml Tank Systems). During that period he was responsible for managing...
Replacing standard dairy produce by low saturated fat equivalents is one of the usual
Boyer, Edmond
in the dairy protein intake. To test the influence of dairy pro- tein on cholesterol metabolism, we submit- ted by density gradient ultracentrifuga- tion. Body weight and food intake remained constant throughout the study
Measurement of the Equivalent Thermal Resistance of Rooftop Lawns in a Hot-Climate Wind Tunnel
Meng, Q.; Zhang, Y.; Zhang, L.
2006-01-01T23:59:59.000Z
rooftop lawn. A hot-climate wind tunnel experiment was carried out in order to obtain and analyze the heat and moisture transport in the rooftop lawn. Furthermore, a calculation with the energy conservation equation was carried out using the results...
Equivalent plastic strain for the Hill's yield criterion under general three-dimensional loading
Colby, Rebecca B. (Rebecca Bea)
2013-01-01T23:59:59.000Z
In many industrial applications, an accurate model of the initial yield surface of materials with a significant degree of anisotropy is required. Anisotropy due to preferred orientation can occur in sheet metal parts used ...
Gomberoff, Andres; Henneaux, Marc; Teitelboim, Claudio [Centro de Estudios Cientificos (CECS), Valdivia (Chile); Physique Theorique et Mathematique, Universite Libre de Bruxelles and International Solvay Institutes, ULB Campus Plaine C.P. 231, B-1050 Brussels (Belgium); Centro de Estudios Cientificos (CECS), Valdivia (Chile); Centro de Estudios Cientificos (CECS), Valdivia (Chile)
2005-03-15T23:59:59.000Z
We study the decay of the cosmological constant in two spacetime dimensions through production of pairs. We show that the same nucleation process looks as quantum-mechanical tunneling (instanton) to one Killing observer and as thermal activation (thermalon) to another. Thus, we find another striking example of the deep interplay between gravity, thermodynamics and quantum mechanics which becomes apparent in presence of horizons.
Diminutive Nouns and Verbs in Slovene Compared to Their English Equivalents
Sicherl, Eva
2013-01-01T23:59:59.000Z
(see, for example, Bauer 2002, 1678). It is also worth noting that most of these formations in Slovene have been imported from foreign languages (usually English, often via German) as anglicisms or have been partly calqued (e.g., miniskirt > minikrilo.... Adams (2001, 55–58) covers diminutives in more de- tail, listing eight nominal suffixes with (partly) diminutive meaning. Further, Bauer (2002, 1677–78) lists five regular suffixes, two prefixes, and a few irregular or his- torical forms. Schneider...
The Equivalence Principle as a Stepping Stone from Special to General Relativity: A Socratic Dialog
S. P. Drake
2005-08-16T23:59:59.000Z
In this paper we show how the student can be led to an understanding of the connection between special relativity and general relativity by considering the time dilation effect of clocks placed on the surface of the Earth. This paper is written as a Socratic dialog between a lecturer Sam and a student Kim.
Equivalence of Reconstruction from the Absolute Value of the Frame Coefficients to a Sparse
Maryland at College Park, University of
transformations we obtained the following result Theorem 1.1: Let M : RN /{+1, -1} RM be defined by M(x) = {| x *Corresponding Author: Radu Balan is with Siemens Corporate Re- search,755 College Road East, Princeton NJ 08540, radu.balan@siemens.com. Pete Casazza and Dan Edidin are with Department of Mathematics, University
On the Equivalence Between Canonical Correlation Analysis and Orthonormalized Partial Least Squares
Ye, Jieping
State University CAD and Knowledge Solutions, Siemens Medical Solutions USA, Inc. Â§{sun.liang, shuiwang.ji, jieping.ye}@asu.edu; shipeng.yu@siemens.com Abstract Canonical correlation analysis (CCA) and partial-dimensional variables. CCA seeks a pair of lin- ear transformations, one for each set of variables, such that the data
A Two-Dimensional Equivalent Complex Permeability Model for Round-Wire Windings
for calculating power loss in round-wire windings was introduced and was shown to have higher accuracy than of not only how the eddy currents in windings affect power loss but also how they affect the field is power loss per length normalized to the square of external field magnitude. The proximity-effect loss