Matrix multiplication over word-size prime fields using Bini's approximate formula
Paris-Sud XI, Université de
Matrix multiplication over word-size prime fields using Bini's approximate formula Brice Boyer Jean-Guillaume Dumas Abstract Bini's approximate formula (or border rank) for matrix multiplication achieves a better the approximate formula in the special case where the ring is Z/pZ. Besides, we show an implemen- tation à la
Zhang, Nevin L.
2013-01-01
International Journal of Approximate Reasoning 54 (2013) 560572 Contents lists available at Sci University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong c EMC Labs China, Beijing, China A R
Buffer Sizing for Minimum Energy-Delay Product by Using an Approximating Polynomial
Pedram, Massoud
Buffer Sizing for Minimum Energy-Delay Product by Using an Approximating Polynomial Chang Woo Kang to derive sizing rules for buffered chains, which optimize the overall energy-delay product. Categories result in a poor solution in terms of the energy-delay product. The focus of this work is on multi
PREPRINT. Journal of Algorithms 29:256276, 1998. Approximate indexed lists
Andersson, Arne
(x): Delete list element x; Pos(x): Return the position of list element x, that is, one plus the number list is a list abstract data type that supports the following queries: ApproxÂPos(x): Return an integer value such that Pos(x) Å¸ ApproxÂPos(x) Å¸ (1 + ffl)Pos(x): ApproxÂRep(i): Return an element x
Power and Effective Study Size Based on Approximations to the Expected Likelihood Ratio
Washington at Seattle, University of
Power and Effective Study Size Based on Approximations to the Expected Likelihood Ratio Test statistical power and precision of heritability estimates can be difficult particularly in complex pedigrees. Previous work focused on the power to detect heritability by using the expectation of the likelihood ratio
Alexander Andreychenko; Luca Bortolussi; Ramon Grima; Philipp Thomas; Verena Wolf
2015-09-30
The stochastic nature of chemical reactions involving randomly fluctuating population sizes has lead to a growing research interest in discrete-state stochastic models and their analysis. A widely-used approach is the description of the temporal evolution of the system in terms of a chemical master equation (CME). In this paper we study two approaches for approximating the underlying probability distributions of the CME. The first approach is based on an integration of the statistical moments and the reconstruction of the distribution based on the maximum entropy principle. The second approach relies on an analytical approximation of the probability distribution of the CME using the system size expansion, considering higher-order terms than the linear noise approximation. We consider gene expression networks with unimodal and multimodal protein distributions to compare the accuracy of the two approaches. We find that both methods provide accurate approximations to the distributions of the CME while having different benefits and limitations in applications.
Football: A Naive Approximation to the Effect of Increasing Goal Size on the Number of Goals
Mira, J
2006-01-01
The effect of increasing goal mouth size on the number of goals scored in a football match is discussed in a very preliminary and simple way, considering elastic collisions of the ball with the posts. The result is obtained on the basis of data taken from the Spanish Professional League, that show a high number of shots-to-post. Surprisingly, there is a direct correlation of the increase in goal mouth area with the increase of goals.
2012-01-01
T. D. Jickells (2006), Mineral particle size as a control onInvestigating Microbial-Mineral Interactions, CMS Workshopstudy of iron-containing mineral dust source materials, J.
Chuan, Toh Kim
for the Degree of Doctor of Philosophy by Kim Chuan Toh August 1996 c fl Kim Chuan Toh 1996 ALL RIGHTS RESERVED #12; MATRIX APPROXIMATION PROBLEMS AND NONSYMMETRIC ITERATIVE METHODS Kim Chuan Toh, Ph.D. Cornell
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Innovation Topics Workshop REGISTRATION LIST David Alman National Energy Technology Laboratory Everett Anderson Proton OnSite Balu Balachandran Argonne National...
Hardware Sizing for Software Application
Swaminathan, Ganesh
2009-05-15
Hardware sizing is an approximation of the hardware resources required to support a software implementation. Just like any theoretical model, hardware sizing model is an approximation of the reality. Depending on the infrastructure needs, workload...
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Boyle, Peter; Christ, Norman; Gara, Alan; Kim, Changhoan; Mawhinney, Robert; Ohmacht, Martin; Sugavanam, Krishnan
2014-08-12
A list prefetch engine improves a performance of a parallel computing system. The list prefetch engine receives a current cache miss address. The list prefetch engine evaluates whether the current cache miss address is valid. If the current cache miss address is valid, the list prefetch engine compares the current cache miss address and a list address. A list address represents an address in a list. A list describes an arbitrary sequence of prior cache miss addresses. The prefetch engine prefetches data according to the list, if there is a match between the current cache miss address and the list address.
Boyle, Peter (Edinburgh, GB); Christ, Norman (Irvington, NY); Gara, Alan (Yorktown Heights, NY); Kim; ,Changhoan (San Jose, CA); Mawhinney, Robert (New York, NY); Ohmacht, Martin (Yorktown Heights, NY); Sugavanam, Krishnan (Yorktown Heights, NY)
2012-08-28
A list prefetch engine improves a performance of a parallel computing system. The list prefetch engine receives a current cache miss address. The list prefetch engine evaluates whether the current cache miss address is valid. If the current cache miss address is valid, the list prefetch engine compares the current cache miss address and a list address. A list address represents an address in a list. A list describes an arbitrary sequence of prior cache miss addresses. The prefetch engine prefetches data according to the list, if there is a match between the current cache miss address and the list address.
Multivariate approximation Robert Schaback
Schaback, Robert
Multivariate approximation Robert Schaback July 30, 2013 1 Synonyms Approximation by functions Approximations of functions are multivariate, if they replace functions of n 2 variables defined on a domain. 4 Overview Multivariate approximation is an extension of Approximation Theory and Approximation
Fast Approximate Convex Decomposition
Ghosh, Mukulika
2012-10-19
Approximate convex decomposition (ACD) is a technique that partitions an input object into "approximately convex" components. Decomposition into approximately convex pieces is both more efficient to compute than exact ...
Approximate Information Theory
Penny, Will
Approximate Inference Will Penny Information Theory Information Entropy Kullback-Liebler Divergence Approximate Inference Will Penny 31st March 2011 #12;Approximate Inference Will Penny Information Theory Will Penny Information Theory Information Entropy Kullback-Liebler Divergence Gaussians Asymmetry
1995-06-01
This document is a master list of acronyms and other abbreviations that are used by or could be useful to, the personnel at Los Alamos National Laboratory. Many specialized and well-known abbreviations are not included in this list.
The Observer Algorithm for Visibility Approximation
Doherty, Patrick
, with dif- ferent view ranges and grid cell sizes. By changing the size of the grid cells that the algorithm or more sentries while moving to a goal position. Algorithms for finding a covert paths in the presence of stationary and moving sentries has been devised by [5] [6]. An approximate visibility algorithm was devised
Egenhofer, Max J.
Publication List #12;Publications List authors, title, (complete) source, date Reverse Location Date #12;An Impressive Publication List 1-2 refereed articles per year Increased publication activities in the last year 1-2 journal articles First author on 50% of the publications Publications
Associative list processing unit
Hemmert, Karl Scott; Underwood, Keith D.
2013-01-29
An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full. Also, an associative list processing unit and method comprising employing a plurality of prioritized cell blocks and using a tree of prioritized multiplexers descending from the plurality of cell blocks.
Chiao, Jung-Chih
Home· Local Blog· Get Listed· Popular Listings· More Directories· Advertise Here· Home » Arlington ... | directoryofarlingt... 1/9/2011http://www.directoryofarlington.com/blog/2011/01/ut ... | directoryofarlingt... 1/9/2011http://www.directoryofarlington.com/blog/2011/01/ut
Ferdinand Project Middleware List
://java.dzone.com/articles/case-study-how-lastfm-uses] - hornetq-vm: VM for testing of clustered scenarios [http://sourceforge.net/projects/hornetq-vm/] EvaluationFerdinand Project Middleware List Jaroslav Keznikl2 , Michal Malohlava1 , LukÃ¡s Marek1 , Petr Tma1 phone +420-266053831 #12;FERDINAND PROJECT MIDDLEWARE LIST PURPOSE The purpose of this report
Brunswick Site, NJ 1997 60. Ventron, MA 1997 61. Bellfield, ND 1997 67. Princeton Plasma Physics Laboratory, NJ Site Name 62. Bowman, ND 63. Maybell, CO 64. Naturita, CO List of...
Associative list processing unit
Hemmert, Karl Scott; Underwood, Keith D
2014-04-01
An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full.
Approximations non-recursively
ÃbrahÃ¡m, Erika
) * x Regard non-recursively de#12;ned approximations fact 0 = nx -> bot fact 1 = nx -> if x else fact 0 (x 1) #3; x fact 2 = nx -> if x fact of fact should satisfy the de#12;ning equation fact = nx -> if x
Wu, Yih-Min
· Subject Bibliography Library #12; 1/2 · Edit Preferences #12; 2/2 · Library PreferencesDisplay Fields · PreferencesDuplicates · PreferencesFind Full Text · PreferencesReference Types #12;? #12;Journal term list() · Bibliography() · Footnotes() · #12;15 4.Journal Article "Insert Field" #12;16 5. : "Reference Types ""Insert
DOE Radiation Records Contacts List
Broader source: Energy.gov [DOE]
DOE radiation records contact list for individuals to obtain records of occupational exposure directly from a DOE site.
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResource and JobLCLS Operating3ledp/ The listing of new
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
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1997-07-01
Summaries and order information are presented for approximately 40 reports from DOE-funded research by the National Petroleum Technology Office. Topics include: exploration and drilling; extraction; field demonstrations of enhanced recovery; reservoir characterization; computer software and supporting documentation; and reel tape computer programs.
Approximation Algorithms for Covering Problems
Koufogiannakis, Christos
2009-01-01
1.3.1 Sequential Algorithms . . . . . . . . . . . . .Distributed 2-approximation algorithm for CMIP 2 (Alg.2 Sequential Algorithm 2.1 The Greedy Algorithm for Monotone
List of Figures xii List of Tables xv
Nagurney, Anna
. . . . . . . . . . . . . . . . . . . . . . . . 137 II Energy Supply Chains 139 6 Electric Power Supply Chains 141 6.1 The Supply Chain ModelContents List of Figures xii List of Tables xv Preface xvi I Supply Chain Networks 1 1 Introduction and Overview 3 2 Supply Chain Networks 9 2.1 The Supply Chain Network Model . . . . . . . . . . . . . . . 11 2
Qualification Status List (QSL Package)
Rathbun, Julie A.
#12;ALSEP Qualification Status List (QSL Package) Flight 3 Configuration #12;NO. ltiY. NO15 C/S T.imer Bl7 2.3 Passive Seismic Experiment (Bl8-B21) PSE Sensor Assembly Bl8 PSE C. RI!V. NO. Qualification Status List ALSEP Array B Configuration 1. 0 INTRODUCTION ATM 825 PAGI! 1
Approximate circuits for increased reliability
Hamlet, Jason R.; Mayo, Jackson R.
2015-12-22
Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.
Prescription Drug List effective January 1, 2015
Arnold, Jonathan
1 Your 2015 Prescription Drug List effective January 1, 2015 Student Resources Traditional ThreeZIPcode. ·Lookuppossiblelower-costmedicationalternatives. ·Comparemedicationpricingandoptions. #12;2 Your Prescription Drug List This Prescription Drug List (PDL) outlines the most commonly prescribed medications for certain
Approximate Graph Products Marc Hellmutha
Stadler, Peter F.
Approximate Graph Products Marc Hellmutha , Wilfried Imrichb , Werner Kl¨ocklb , Peter F. Stadlera or fingers) can vary independently of other traits, or Email addresses: marc@bioinf.uni-leipzig.de (Marc
APPROXIMATELY UNITARILY EQUIVALENT MORPHISMS AND ...
2010-07-28
?(a) = diag(a(x)1,...,a(xk)), then we say that ? and ? are approximately unitarily ... Mr?1(C(X)) and a unital ?-homomorphism µ : C(X) ? Mr(C(X)) with finite.
VARSITY SPORTS Football Fixture List Final
Wagner, Stephan
VARSITY SPORTS Football Fixture List Â Final 2015 VARSITY FOOTBALL #12;VARSITY SPORTS Football Fixture List Â Final 3-Sept 15 28 18
Energy & Manufacturing Workforce Training Topics List - Version...
Office of Environmental Management (EM)
areas of energy andor manufacturing. Information provided in this list includes: the subjects being taught, grantee, project title, and state. In some cases the list also shows...
Proofs About Lists Using Ellipsis
Bundy, Alan; Richardson, Julian
In this paper we explore the use of ellipsis in proofs about lists. We present a higher-order formulation of elliptic formulae, and describe its implementation in the LambdaClam proof planner. We use an unambiguous ...
Planning numerical approximations Richard Power
Williams, Sandra
Planning numerical approximations Richard Power Sandra Williams 21st September 2009 #12;Table proportions (e.g., more than a quarter, 25.9 per cent) Proportions are a convenient well-defined subproblem Common in factual discourse (e.g., newspaper articles) Important for generating from data (but neglected
Listing of Defense Nuclear Facilities
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
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College of Business Journal List
Hutcheon, James M.
of Management Studies 4 1503 Journal of Operations Management 4 1503 Journal Personnel Psychology 4 1503 Production and Operations Management 4 1503 Research on the reputation and quality of journals across the disciplines in the College. The list is not meant
DEAN'S LIST Fall Semester 2012
Wong, Pak Kin
DEAN'S LIST Fall Semester 2012 Congratulations to these students for earning a 3.53.9 grade point Daniel Chacon, Brian M. Chavez, Natalie T. Chen, Hao Chen, Yi Chieh Cohen, Jordan A. Corrales, Tamara G, Jorge Dougless, Austin William Dreier, Robert Duarte, Elisa C. Dunn, Ellen C. Durbin, John R. Dusard
DEAN'S LIST Spring Semester 2010
Wong, Pak Kin
DEAN'S LIST Spring Semester 2010 Chai, Jun Christopher, Joseph Thomas Chu, Clayton N. Chu, Wesley D. Cook, Nathan I. Cordon, Michael J. Danford, Forest L. Davenport, Andrew Edward Davis, Amanda Kathryn. Bloom, John Tyler Bond-Choquette, Claire Marie Bradford, Jonathan W. Brown, Thomas C. Bruns, Jared M
LIST OF PUBLICATIONS Yuichi Takase
Yamamoto, Hirosuke
LIST OF PUBLICATIONS Yuichi Takase [1] Lower hybrid heating in the Alcator] Impurity generation during intense lower hybrid heating experiments on the Alcator C tokamak, E. Marmar, M. Fusion 26, 1279-1291 (1986). [12] Impurity sources during lower hybrid heating on Alcator, B. Lipschultz
Software Price List Windows Applications
Software Price List Windows Applications Software cannot be returned. Also note that the University support on campus, please go to www.unh.edu/it Number Item Price Number Item Price Prices are subject Item Price Only USNH Departments may purchase software below. A license does not include media
Calculating Horsepower Requirements and Sizing Supply Pipelines for Irrigation
Fipps, Guy
1995-09-05
between 2 and 3 ft/s in order to prevent cavitation. Table 5 lists the maximum flow rates recommended for different ID (internal diameter) pipe sizes using the 5 ft/s rule. Many friction loss tables give both the friction loss and velocity for any given...
Linear Value Function Approximation Linear Models
Parr, Ronald
Linear Value Function Approximation and Linear Models Ronald Parr Duke University Joint work terminology Â· Various forms of linear value function approximation Â· Linear approximate model formulation #12;Outline Â· Introduce terminology Â· Various forms of linear value function approximation Â· Linear
LUBRICATION APPROXIMATION WITH PRESCRIBED NONZERO CONTACT ANGLE
Otto, Felix
LUBRICATION APPROXIMATION WITH PRESCRIBED NONZERO CONTACT ANGLE Felix Otto Department--time existence for a weak solution s(t; x) â?? 0 of the lubrication approximation @ t s + @ x (s @ 3 x s) = 0 in fs will later motivate the way we construct approximate solutions for the lubrication approximation we are going
Critical Materials Workshop Final Participant List
Office of Energy Efficiency and Renewable Energy (EERE)
List of participants who attended the Critical Materials Workshop held on April 3, 2012 in Arlington, VA
LIST OF CONTRACTORS TO SUPPORT ANTHRAX REMEDIATION
by the Northwest Regional Technology Center for Homeland Security List of Contractors to Support Anthrax operated by BATTELLE for the UNITED STATES DEPARTMENT OF ENERGY under Contract DE-AC05-76RL01830 #12;1 ListLIST OF CONTRACTORS TO SUPPORT ANTHRAX REMEDIATION May 2010 Prepared for the Interagency Biological
Online Reading Lists Instructions for Academic Staff
Brierley, Andrew
the heading `Subject Guides and Reading Lists') Enter Reading Lists link. Then Sign in (top right) using your will be asked to set up a profile this takes just a minute and enables students to search for lists associated software you will need to install a `Bookmarklet' tool. `Bookmarks' is the term used by the software
Approximate Nash Equilibria for Multi-player Games Sebastien Hemon1,2
Fondements et Applications, Université Paris 7
Approximate Nash Equilibria for Multi-player Games S´ebastien H´emon1,2 , Michel de Rougemont1 approximate Nash equilibria in the additive and multiplicative sense, where the number of pure strategies. In the additive case we show that for 0 Nash equilibrium with support size 2r ln(nr+r) 2
Scientific paper A List of Eucalyptus Leaf Fungi and their Potential Importance
Scientific paper A List of Eucalyptus Leaf Fungi and their Potential Importance to South African is made of the status of the fungi, and also of recent trends in Eucalyptus leaf pathology. INTRODUCTION Most of the approximately 600 Eucalyptus spp. and varieties are endemic to Australia and Papua New
List of Windows Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressedList of RefuelingRoomListListList ofList
The Hydrogen Atom with a Finite Sized Nucleus Frank Rioux
Rioux, Frank
The Hydrogen Atom with a Finite Sized Nucleus Frank Rioux This exercise explores the impact of nuclear size on the ground state energy of the hydrogen atom's electron. The traditional approach assumes that the proton is a dimensionless point charge, which is a very good approximation for the hydrogen atom. However
Journal List Substitution Process Approved September 8, 2011
Selmic, Sandra
Journal List Substitution Process Approved September 8, 2011 JOURNAL LIST SUBSTITUTION PROCESS Each discipline-specific journal list area can be amended after a new list is developed according to established a way to adjust the new journal list so that the journal list more closely matches the strengths
An approximation technique for jet impingement flow
Najafi, Mahmoud; Fincher, Donald; Rahni, Taeibi; Javadi, KH.; Massah, H.
2015-03-10
The analytical approximate solution of a non-linear jet impingement flow model will be demonstrated. We will show that this is an improvement over the series approximation obtained via the Adomian decomposition method, which is itself, a powerful method for analysing non-linear differential equations. The results of these approximations will be compared to the Runge-Kutta approximation in order to demonstrate their validity.
Low rank approximations of matrices and tensors
Friedland, Shmuel
Low rank approximations of matrices and tensors S. Friedland, V. Mehrmann, A. Miedlar and M, 2008 S. Friedland, V. Mehrmann, A. Miedlar and M. Nkengla Low rank approximations of matrices and tensors #12;Overview S. Friedland, V. Mehrmann, A. Miedlar and M. Nkengla Low rank approximations
Site maps and facilities listings
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1993-11-01
In September 1989, a Memorandum of Agreement among DOE offices regarding the environmental management of DOE facilities was signed by appropriate Assistant Secretaries and Directors. This Memorandum of Agreement established the criteria for EM line responsibility. It stated that EM would be responsible for all DOE facilities, operations, or sites (1) that have been assigned to DOE for environmental restoration and serve or will serve no future production need; (2) that are used for the storage, treatment, or disposal of hazardous, radioactive, and mixed hazardous waste materials that have been properly characterized, packaged, and labelled, but are not used for production; (3) that have been formally transferred to EM by another DOE office for the purpose of environmental restoration and the eventual return to service as a DOE production facility; or (4) that are used exclusively for long-term storage of DOE waste material and are not actively used for production, with the exception of facilities, operations, or sites under the direction of the DOE Office of Civilian Radioactive Waste Management. As part of the implementation of the Memorandum of Agreement, Field Offices within DOE submitted their listings of facilities, systems, operation, and sites for which EM would have line responsibility. It is intended that EM facility listings will be revised on a yearly basis so that managers at all levels will have a valid reference for the planning, programming, budgeting and execution of EM activities.
Carreras, B. A.; Physics Department, College of Natural Science and Mathematics and Geophysical Institute, University of Alaska, Fairbanks, Alaska 99775; Physics Department, Universidad Carlos III de Madrid, Madrid ; Newman, D. E.; Dobson, Ian
2014-06-15
Failures of the complex infrastructures society depends on having enormous human and economic cost that poses the question: Are there ways to optimize these systems to reduce the risks of failure? A dynamic model of one such system, the power transmission grid, is used to investigate the risk from failure as a function of the system size. It is found that there appears to be optimal sizes for such networks where the risk of failure is balanced by the benefit given by the size.
Martin, Jan M.L.
First principles computation of thermochemical properties beyond the harmonic approximation. I of thermochemical data for molecules and reactions hardly needs to be stressed. Compilations like the JANAF tables' list free energy functions, entropies, enthalpies, and molar heats as a function of temperature from
List of publications of A. Eremenko
Publications of Alexandre Eremenko. Another list is given in my Google Scholar Profile. Here the order is roughly chronological, all recent papers are available ...
Carvel, Ricky O
In recent years, a number of high profile accidental fires have occurred in several road and rail tunnels throughout the world. Many of these fires grew rapidly to catastrophic size and claimed many lives. The processes ...
Annotated Resource List A select list of books and Web sites covering every
Miller, Scott
Annotated Resource List A select list of books and Web sites covering every continent's mammalian and Web sites covering every continent's mammalian fauna has been assembled for educators. Notes
Near approximations via general ordered topological spaces
M. Abo-Elhamayel
2014-12-27
Rough set theory is a new mathematical approach to imperfect knowledge. The notion of rough sets is generalized by using an arbitrary binary relation on attribute values in information systems, instead of the trivial equality relation. The topology induced by binary relations is used to generalize the basic rough set concepts. This paper studies near approximation via general ordered topological approximation spaces which may be viewed as a generalization of the study of near approximation from the topological view. The basic concepts of some increasing (decreasing) near approximations, increasing (decreasing) near boundary regions and increasing (decreasing) near accuracy were introduced and sufficiently illustrated. Moreover, proved results, implications and add examples.
APPROXIMATION OF ELECTROMAGNETIC FIELDS: PART I ...
2003-08-06
Opérateurs, 1984, Commissariat `a l'Energie Atomique, Masson, Paris. [10] J. DOUGLAS, JR., J. E. SANTOS, AND D. SHEEN, Approximation of scalar waves in ...
Lower bounds for approximate factorizations via semidefinite ...
ABSTRACT The problem of approximately factoring a real or complex multivariate polynomial f seeks minimal perturbations ? f to the coefficients of the input ...
Optimization Online - Probabilistic optimization via approximate p ...
W. van vAckooij
2015-05-27
May 27, 2015 ... Probabilistic optimization via approximate p-efficient points and bundle methods. W. van vAckooij(wim.van-ackooij ***at*** edf.fr )
Approximations by Orthonormal Mapped Chebyshev Functions for ...
2014-03-12
a School of Mathematical Science, Xiamen University, 361005 Xiamen, China .... suitable mapping can be used to approximate functions on the whole line R (cf.
Sluckin, Tim
PUBLICATION LIST T.J. Sluckin January 2015 Publications listed by type; in each section most recent: the story of liquid crystals from oddity to technology T.J. Sluckin Inaugural lecture, University and two beam energy exchange in photorefractive hybrid cholesteric cell. Proceedings of the 7th
Approximate Substring Selectivity Estimation Hongrae Lee
Ng, Raymond T.
for the similarity between a pair of strings. Based on information stored in an extended N-gram table, we pro- pose is by permission of the ACM. To copy otherwise, or to republish, to post on servers or to redistribute to lists
Approximate Euclidean Ramsey theorems Adrian Dumitrescu
Dumitrescu, Adrian
Approximate Euclidean Ramsey theorems Adrian Dumitrescu October 27, 2010 Abstract According condition is needed in this case. Keywords: Euclidean Ramsey theory, approximate arithmetic progression result of Ramsey from 1930: Theorem 1 (Ramsey [24]). Let p q, and r be positive integers
APPROXIMATE SIMULATION RELATIONS FOR HYBRID SYSTEMS 1
Pappas, George J.
. Pappas Department of Electrical and Systems Engineering University of Pennsylvania Philadelphia, PA been introduced as a powerful tool for the approximation of discrete and continuous systems systems approximation. An example of application in the context of safety verification is shown. Keywords
APPROXIMATION RESULTS FOR REFLECTIONLESS JACOBI MATRICES
Remling, Christian
APPROXIMATION RESULTS FOR REFLECTIONLESS JACOBI MATRICES ALEXEI POLTORATSKI AND CHRISTIAN REMLING Abstract. We study spaces of reflectionless Jacobi matrices. The main theme is the following type of question: Given a reflectionless Jacobi matrix, is it possible to approximate it by other reflection- less
An improved proximity force approximation for electrostatics
C. D. Fosco; F. C. Lombardo; F. D. Mazzitelli
2012-04-23
A quite straightforward approximation for the electrostatic interaction between two perfectly conducting surfaces suggests itself when the distance between them is much smaller than the characteristic lengths associated to their shapes. Indeed, in the so called "proximity force approximation" the electrostatic force is evaluated by first dividing each surface into a set of small flat patches, and then adding up the forces due two opposite pairs, the contribution of which are approximated as due to pairs of parallel planes. This approximation has been widely and successfully applied to different contexts, ranging from nuclear physics to Casimir effect calculations. We present here an improvement on this approximation, based on a derivative expansion for the electrostatic energy contained between the surfaces. The results obtained could be useful to discuss the geometric dependence of the electrostatic force, and also as a convenient benchmark for numerical analyses of the tip-sample electrostatic interaction in atomic force microscopes.
Approximate error conjugation gradient minimization methods
Kallman, Jeffrey S
2013-05-21
In one embodiment, a method includes selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, calculating an approximate error using the subset of rays, and calculating a minimum in a conjugate gradient direction based on the approximate error. In another embodiment, a system includes a processor for executing logic, logic for selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, logic for calculating an approximate error using the subset of rays, and logic for calculating a minimum in a conjugate gradient direction based on the approximate error. In other embodiments, computer program products, methods, and systems are described capable of using approximate error in constrained conjugate gradient minimization problems.
Technology Forum Map and List of Awardees' Posters and Exhibits...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum map and list of exhibits.pdf More...
List Processing in Real Time on a Serial Computer
Baker, Henry G. Jr.
1977-04-01
A real-time list processing system is one in which the time required by each elementary list operation (CONS, CAR, CDR, RPLACA, RPLACD, EQ, and ATOM in LISP) is bounded by a (small) constant. Classical list processing ...
APPENDIX A DISTRIBUTION LIST Federal Government Agencies Army...
Broader source: Energy.gov (indexed) [DOE]
birds on the county list should be considered regardless of whether they appear on a quad list. Plants Any plants on your list are ones that have actually been observed in the area...
The Casimir Energy for a Hyperboloid Facing a Plate in the Optical Approximation
O. Schroeder; A. Scardicchio; R. L. Jaffe
2005-07-21
We study the Casimir energy of a massless scalar field that obeys Dirichlet boundary conditions on a hyperboloid facing a plate. We use the optical approximation including the first six reflections and compare the results with the predictions of the proximity force approximation and the semi-classical method. We also consider finite size effects by contrasting the infinite with a finite plate. We find sizable and qualitative differences between the new optical method and the more traditional approaches.
List of Chillers Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds JumpOxiranchemRemodelersList ofListList of
Wave-mechanics and the adhesion approximation
C. J. Short; P. Coles
2006-11-22
The dynamical equations describing the evolution of a self-gravitating fluid of cold dark matter (CDM) can be written in the form of a Schrodinger equation coupled to a Poisson equation describing Newtonian gravity. It has recently been shown that, in the quasi-linear regime, the Schrodinger equation can be reduced to the exactly solvable free-particle Schrodinger equation. The free-particle Schrodinger equation forms the basis of a new approximation scheme -the free-particle approximation - that is capable of evolving cosmological density perturbations into the quasi-linear regime. The free-particle approximation is essentially an alternative to the adhesion model in which the artificial viscosity term in Burgers' equation is replaced by a non-linear term known as the quantum pressure. Simple one-dimensional tests of the free-particle method have yielded encouraging results. In this paper we comprehensively test the free-particle approximation in a more cosmologically relevant scenario by appealing to an N-body simulation. We compare our results with those obtained from two established methods: the linearized fluid approach and the Zeldovich approximation. We find that the free-particle approximation comprehensively out-performs both of these approximation schemes in all tests carried out and thus provides another useful analytical tool for studying structure formation on cosmological scales.
Ayako Yoshisato; Takahiko Matsubara; Masahiro Morikawa
1997-08-11
Among various analytic approximations for the growth of density fluctuations in the expanding Universe, Zel'dovich approximation and its extensions in Lagrangian scheme are known to be accurate even in mildly non-linear regime. The aim of this paper is to investigate the reason why these Zel'dovich-type approximations work accurately beyond the linear regime from the following two points of view: (1) Dimensionality of the system and (2) the Lagrangian scheme on which the Zel'dovich approximation is grounded. In order to examine the dimensionality, we introduce a model with spheroidal mass distribution. In order to examine the Lagrangian scheme, we introduce the Pad\\'e approximation in Eulerian scheme. We clarify which of these aspects supports the unusual accuracy of the Zel'dovich-type approximations. We also give an implication for more accurate approximation method beyond the Zel'dovich-type approximations.
Public Meeting Attendee List: Sustainable Design Standards for...
Office of Environmental Management (EM)
Public Meeting Attendee List: Sustainable Design Standards for Federal Buildings Public Meeting Attendee List: Sustainable Design Standards for Federal Buildings This document is...
List of Publications from the Energy for Development and Poverty...
List of Publications from the Energy for Development and Poverty Reduction Website Jump to: navigation, search Tool Summary LAUNCH TOOL Name: List of Publications from the Energy...
List of Topics for Interagency Performance & Risk Assessment...
Office of Environmental Management (EM)
List of Topics for Interagency Performance & Risk Assessment Community of Practice (P&RA CoP) Discussion List of Topics for Interagency Performance & Risk Assessment Community of...
Notice of Availability of a Preliminary List of Standby Power...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Availability of a Preliminary List of Standby Power Products and Testing Guidelines, Federal Register, 66 FR 67517, December 31, 2001 Notice of Availability of a Preliminary List...
Aerosol mobility size spectrometer
Wang, Jian (Port Jefferson, NY); Kulkarni, Pramod (Port Jefferson Station, NY)
2007-11-20
A device for measuring aerosol size distribution within a sample containing aerosol particles. The device generally includes a spectrometer housing defining an interior chamber and a camera for recording aerosol size streams exiting the chamber. The housing includes an inlet for introducing a flow medium into the chamber in a flow direction, an aerosol injection port adjacent the inlet for introducing a charged aerosol sample into the chamber, a separation section for applying an electric field to the aerosol sample across the flow direction and an outlet opposite the inlet. In the separation section, the aerosol sample becomes entrained in the flow medium and the aerosol particles within the aerosol sample are separated by size into a plurality of aerosol flow streams under the influence of the electric field. The camera is disposed adjacent the housing outlet for optically detecting a relative position of at least one aerosol flow stream exiting the outlet and for optically detecting the number of aerosol particles within the at least one aerosol flow stream.
Firearms Modifications List- June 13, 2012
Broader source: Energy.gov [DOE]
This document contains the currently-approved protective force "Firearms Modification List" referred to in Department of Energy Order 473.3, Protection Program Operations. This supersedes any previous versions of this document
LIST OF ILLUSTRATIONS. To face page.
LIST OF ILLUSTRATIONS. To face page. CHART A.--Dlxon Entranoe to Head of Lynn Canal, showing in Stream at Helm Bay. Dam in Outlet to Lake, Red!lsh Bay....................... 84 11. Barrier in Stream
Harmonic Wavelet Transform and Image Approximation
Zhang, Zhihua; Saito, Naoki
2010-01-01
DOI 10.1007/s10851-010-0202-x Harmonic Wavelet Transform andwe approximate f by a harmonic function u such that thebanks. We call this the Harmonic Wavelet Transform (HWT).
Approximate inference in Gaussian graphical models
Malioutov, Dmitry M., 1981-
2008-01-01
The focus of this thesis is approximate inference in Gaussian graphical models. A graphical model is a family of probability distributions in which the structure of interactions among the random variables is captured by a ...
A fresh look at the adhesion approximation
Thomas Buchert
1997-11-04
I report on a systematic derivation of the phenomenological ``adhesion approximation'' from gravitational instability together with a brief evaluation of the related status of analytical modeling of large-scale structure.
Energy-efficient approximate computation in Topaz
Achour, Sara
2015-01-01
The increasing prominence of energy consumption as a first-order concern in contemporary computing systems has motivated the design of energy-efficient approximate computing platforms. These computing platforms feature ...
Updated: June 21, 2010 Diophantine approximation,
Waldschmidt, Michel
Updated: June 21, 2010 Diophantine approximation, irrationality and transcendence Michel] Chap. 3. See also [1] Chap. III. References [1] S. Lang, Introduction to transcendental numbers transcendants, Springer-Verlag, Berlin, 1974. Lecture Notes in Mathematics, Vol. 402. http
Optimization in Geometric Graphs: Complexity and Approximation
Kahruman-Anderoglu, Sera
2011-02-22
We consider several related problems arising in geometric graphs. In particular, we investigate the computational complexity and approximability properties of several optimization problems in unit ball graphs and develop ...
Signal approximation using the bilinear transform
Venkataraman, Archana, Ph. D. Massachusetts Institute of Technology
2007-01-01
This thesis explores the approximation properties of a unique basis expansion. The expansion implements a nonlinear frequency warping between a continuous-time signal and its discrete-time representation according to the ...
Polymer state approximations of Schroedinger wave functions
Klaus Fredenhagen; Felix Reszewski
2006-08-25
It is shown how states of a quantum mechanical particle in the Schroedinger representation can be approximated by states in the so-called polymer representation. The result may shed some light on the semiclassical limit of loop quantum gravity.
An improved proximity force approximation for electrostatics
Fosco, Cesar D.; Instituto Balseiro, Universidad Nacional de Cuyo, R8402AGP Bariloche ; Lombardo, Fernando C.; IFIBA ; Mazzitelli, Francisco D.
2012-08-15
A quite straightforward approximation for the electrostatic interaction between two perfectly conducting surfaces suggests itself when the distance between them is much smaller than the characteristic lengths associated with their shapes. Indeed, in the so called 'proximity force approximation' the electrostatic force is evaluated by first dividing each surface into a set of small flat patches, and then adding up the forces due two opposite pairs, the contributions of which are approximated as due to pairs of parallel planes. This approximation has been widely and successfully applied in different contexts, ranging from nuclear physics to Casimir effect calculations. We present here an improvement on this approximation, based on a derivative expansion for the electrostatic energy contained between the surfaces. The results obtained could be useful for discussing the geometric dependence of the electrostatic force, and also as a convenient benchmark for numerical analyses of the tip-sample electrostatic interaction in atomic force microscopes. - Highlights: Black-Right-Pointing-Pointer The proximity force approximation (PFA) has been widely used in different areas. Black-Right-Pointing-Pointer The PFA can be improved using a derivative expansion in the shape of the surfaces. Black-Right-Pointing-Pointer We use the improved PFA to compute electrostatic forces between conductors. Black-Right-Pointing-Pointer The results can be used as an analytic benchmark for numerical calculations in AFM. Black-Right-Pointing-Pointer Insight is provided for people who use the PFA to compute nuclear and Casimir forces.
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
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Planning List for SMD Solicitations Last updated June 30, 2015
Christian, Eric
Planning List for SMD Solicitations Last updated June 30, 2015 The following list is the NASA Science Mission Directorate (SMD) planning list for solicitations issued as Broad Agency Announcements Notices (CANs). This list represents a snapshot of SMD's plans as of the revision date. It is important
Size scaling of self gravitating polymers and strings
Shoichi Kawamoto; Toshihiro Matsuo
2015-06-03
We study a statistical ensemble of a single polymer with self gravitational interaction. This is a model of a gravitating string --- the precursor of a black hole. We analyze averaged sizes by mean field approximations with an effective Hamiltonian a la Edwards with Newtonian potential as well as a contact repulsive interaction. We find that there exists a certain scaling region where the attractive and the repulsive forces balance out. The repulsive interaction pushes the critical gravitational coupling to a larger value, at which the size of a polymer becomes comparable to its Schwarzschild radius, and as a result the size of the corresponding black hole increases considerably.
Size scaling of self gravitating polymers and strings
Kawamoto, Shoichi
2015-01-01
We study a statistical ensemble of a single polymer with self gravitational interaction. This is a model of a gravitating string --- the precursor of a black hole. We analyze averaged sizes by mean field approximations with an effective Hamiltonian a la Edwards with Newtonian potential as well as a contact repulsive interaction. We find that there exists a certain scaling region where the attractive and the repulsive forces balance out. The repulsive interaction pushes the critical gravitational coupling to a larger value, at which the size of a polymer becomes comparable to its Schwarzschild radius, and as a result the size of the corresponding black hole increases considerably.
On-line and Approximation Algorithms Fall Semester, 2011/12 Final Exam: February 8, 2012
Azar, Yossi
On-line and Approximation Algorithms Fall Semester, 2011/12 Final Exam: February 8, 2012 Lecturer a subset of machines Si of size m/2 and two values wi and pi. Assigning job i is assigned to a machine j Si increases the load of j by wi where assigning job i to a machine j / Si increases the load of j
On-line and Approximation Algorithms Spring Semester, 2006 Final Exam: June 12, 2006
Azar, Yossi
On-line and Approximation Algorithms Spring Semester, 2006 Final Exam: June 12, 2006 Lecturer: Prof problem on m (divisible by 3) machines. Job i has weight wi and a subset Si of size m/3 of the m machines. The job has to be assigned to one machine in Si. (a) Design a 4 competitive algorithm. (b) Show
Extending the Eikonal Approximation to Low Energy
Pierre Capel; Tokuro Fukui; Kazuyuki Ogata
2014-11-21
E-CDCC and DEA, two eikonal-based reaction models are compared to CDCC at low energy (e.g. 20AMeV) to study their behaviour in the regime at which the eikonal approximation is supposed to fail. We confirm that these models lack the Coulomb deflection of the projectile by the target. We show that a hybrid model, built on the CDCC framework at low angular momenta and the eikonal approximation at larger angular momenta gives a perfect agreement with CDCC. An empirical shift in impact parameter can also be used reliably to simulate this missing Coulomb deflection.
Approximating European Options by Rebate Barrier Options
Song, Qingshuo
2011-01-01
When the underlying stock price is a strict local martingale process under an equivalent local martingale measure, Black-Scholes PDE associated with an European option may have multiple solutions. In this paper, we study an approximation for the smallest hedging price of such an European option. Our results show that a class of rebate barrier options can be used for this approximation, when its rebate and barrier are chosen appropriately. An asymptotic convergence rate is also achieved when the knocked-out barrier moves to infinity under suitable conditions.
Exact and Approximate REML for Heteroscedastic Regression
Smyth, Gordon K.
Exact and Approximate REML for Heteroscedastic Regression Gordon K. Smyth Department of Mathematics, the above het- eroscedastic regression model is the most general model of the type considered by LN98 and SV to estimate the het- eroscedastic regression model by way of two coupled generalized linear models
Semicirculant approximations in preconditioners for incompressible flow
be successfully used as an approximate solver of a convectiondiffusion problem in the BFB T preconditioner ([1 of the convection diffusion problem in the BFB T preconditioner for the incompressible Navier Stokes equations of discrete pressures. The square matrix F here is a discrete convectiondiffusion operator. The BFB
Approximate Inference and Protein-Folding
Weiss, Yair
Approximate Inference and Protein-Folding Chen Yanover and Yair Weiss School of Computer Science Side-chain prediction is an important subtask in the protein-folding problem. We show that #12;nding algorithms, including a widely used protein-folding software (SCWRL). 1 Introduction Inference in graphical
Notion of p-value Parametric Approximations
Nuel, Gregory
Notion of p-value Parametric Approximations Power Significance of an Observation in Post-Genomics G, March 7 - 10, 2011 G. NUEL Significance of an Observation in Post-Genomics #12;Notion of p Power of a test ROC and AUC Example with GWAS G. NUEL Significance of an Observation in Post-Genomics
Stochastic Approximation: Sturen in een veranderende wereld
Bhulai, Sandjai
gedaan door middel van simulaties of experimenten. Twee bekende algoritmes binnen Stochastic Approximation zijn het Robbins- Monro algoritme en het Kiefer-Wolfowitz algoritme. Deze algoritmes benaderen formule is de kleine rekentijd en het gebruik van beperkte geheugenruimte. Echter, het algoritme hangt af
Approximations to the Distributed Activation Energy Model
Approximations to the Distributed Activation Energy Model for Pyrolysis C.P. Please, 1 M.J. Mc, then resubmitted after minor revisions in September 2002. Abstract The Distributed Activation Energy Model (DAEM effective method for estimating kinetic parameters and the distribution of activation energies. Comparison
Updated: May 28, 2010 Diophantine approximation,
Waldschmidt, Michel
Updated: May 28, 2010 Diophantine approximation, irrationality and transcendence Michel Waldschmidt [3] is: Theorem 121 (Lambert, 1761). For any r Q \\ {0}, the numbers tan r and er are irrational. In particular the number is irrational. The main tool is continued fractions, and the first goal of Lambert
Updated: June 16, 2010 Diophantine approximation,
Waldschmidt, Michel
Updated: June 16, 2010 Diophantine approximation, irrationality and transcendence Michel. It is known (see for instance [31] p. 25) that if k is a positive integer, if an irrational real number has, 31, 13, 1]. Definition Given a real irrational number , a function = N R>0 is an irrationality
Updated: May 16, 2010 Diophantine approximation,
Waldschmidt, Michel
Updated: May 16, 2010 Diophantine approximation, irrationality and transcendence Michel Waldschmidt of 2 We first give a geometrical proof of the irrationality of the number 2 = 1, 414 213 562 373 095 rectangle. This proves the irrationality of 2. In algebraic terms, the number x = 1 + 2 satisfies x = 2
Updated: June 1, 2010 Diophantine approximation,
Waldschmidt, Michel
Updated: June 1, 2010 Diophantine approximation, irrationality and transcendence Michel Waldschmidt on the irrationality of er when r is a non-zero rational number. Next we show how a slight modification implies.1.1 Irrationality of er for r Q If r = a/b is a rational number such that er is also rational, then e|a| is also
Updated: June 23, 2010 Diophantine approximation,
Waldschmidt, Michel
Updated: June 23, 2010 Diophantine approximation, irrationality and transcendence Michel://www.math.jussieu.fr/ miw/articles/ps/eccm.ps [5] -- , Elliptic functions and transcendence, in Surveys in number theory of and . Schneider's Theorem on the transcendence of j() (corollary 174). 11 Algebraic independence 11.1 Chudnovskii
and second bottles of a bottle pair. Used to determine the quality of analysis (both individual pair quality-titration drift often seen with our titration systems. Constant-volume mercury manometer (CMM) For the purpose double-column mercury manometer. One column is kept under vacuum, and the other contains the sample gas
Category:Lists | Open Energy Information
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List of Biomass Incentives | Open Energy Information
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List of Boilers Incentives | Open Energy Information
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List of Motors Incentives | Open Energy Information
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List of Vehicles Incentives | Open Energy Information
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Polle, Jürgen
, Tatsuru Masuda and Anastasios Melis* Department of Plant and Microbial Biology, University of California productivity of a mass culture. A list of genes that confer a "truncated light- harvesting Chl antenna" size or two because of the photosynthetic evolution of oxygen. The latter is a powerful positive suppressor
Convergence analysis of the thermal discrete dipole approximation
Edalatpour, Sheila; Trueax, Tyler; Backman, Roger; Francoeur, Mathieu
2015-01-01
The thermal discrete dipole approximation (T-DDA) is a numerical approach for modeling near-field radiative heat transfer in complex three-dimensional geometries. In this work, the convergence of the T-DDA is investigated using the exact solution for two spheres separated by a vacuum gap. The error associated with the T-DDA is reported for various size parameters, refractive indices and vacuum gap sizes. The results reveal that for a fixed number of sub-volumes, the accuracy of the T-DDA degrades as the refractive index and the sphere diameter to gap ratio increase. A converging trend is observed as the number of sub-volumes increases. The large computational requirements associated with increasing the number of sub-volumes, and the shape error induced by large sphere diameter to gap ratios, are mitigated by using a non-uniform discretization scheme. Non-uniform discretization is shown to significantly accelerate the convergence of the T-DDA, and is thus recommended for near-field thermal radiation simulation...
APPROVED MATERIALS LIST FOR ALSEP EQUIPMENT
Rathbun, Julie A.
APPROVED MATERIALS LIST FOR ALSEP EQUIPMENT Addendum 1 ATU 242 I (E1) I PAGE-~ OF 39 DATE July 15, 1971 1. Amendment 1 to ATM 242 is issued to incorporate additional non-metallic materials which can operation and storage period. 2. Show alternate material designation for EPON adhesives made by Hysol after
Rathbun, Julie A.
LIST INDEX CLASSIFICATION OF NON-METALLIC MATERIAL ADHESIVES ELASTOMERS ELECTRICAL INSULATION FINISHES MOLDING POTTING COMPOUNDS, SEALANTS, ENCAPSULANTS WIRE & CABLE, INSULATED, & COAXIAL MISCELLANEOUS lti AND THERMAL COMPONENTS- A. D. LITTLE GRAVlMETER SENSOR - LACOSTE lc ROMBERG SEISMIC PROFILE EXPER. -BENDIX
DEAN'S LIST WITH DISTINCTION Spring Semester 2010
Wong, Pak Kin
Rheinheimer, Paul E Rice, Adam T. Rice, Sean Christopher Richards, Robert G. Roberts, Meredith A. Romero, Emanuel J. Rosser, David Ryan, Christopher T. Sarmiento, Sonia Schultz, Robert G. Shen, Xiaolong ShinDEAN'S LIST WITH DISTINCTION Spring Semester 2010 Hale, Erwin A. Hari, Gautam Harshman, Dustin K
DEAN'S LIST HONORABLE MENTION Spring Semester 2014
Wong, Pak Kin
Lee Avetian, Luke Saro Baker, Sean Robert Balagopal, Nirantha G. Ball, Sabrina Ballam, Abigail SavilleDEAN'S LIST HONORABLE MENTION Spring Semester 2014 Congratulations to these students for earning Allen Futch, Robert Steven Gallagher, Sara J. Gao, Li Gary, Michelle Elizabeth Gebbia, Timothy J. Gharib
List of selected publications Maria Wivstad
List of selected publications Maria Wivstad Director EPOK Centre for Organic Food and Farming). Rapport EPOK Centre for Organic Food and Farming, www.slu.se/epok, Publications. (In Swedish, A. and Winqvist, C. 2012. EPOK Centre for Organic Food and Farming, Sweden. In: Tackling
ANNUAL REVIEW 1999 ---List of Published Papers ---
Imai, Hiroshi
ANNUAL REVIEW 1999 --- List of Published Papers --- Department of Information Science Faculty(2):51--55, March 1999. (in Japanese). Masahiko Takahashi, Kenji Kono, and Takashi Masuda. E#cient kernel support Computing Systems, pages 64--73, 1999. Takahiro Shinagawa, Kenji Kono, Masahiko Takahashi, and Takashi
C. PROJECT DESCRIPTION 1. List of Participants
Pasternack, Gregory B.
, 1989), yet there are excellent examples in such efforts as the Manhattan Project, NASA's Apollo MoonC. PROJECT DESCRIPTION 1. List of Participants Name Role* Institution/Org.** Expertise Previous Program, and the Human Genome Project (Fogg and LaBolle, 2006). The driving force behind each
Second derivatives for approximate spin projection methods
Thompson, Lee M.; Hratchian, Hrant P.
2015-02-07
The use of broken-symmetry electronic structure methods is required in order to obtain correct behavior of electronically strained open-shell systems, such as transition states, biradicals, and transition metals. This approach often has issues with spin contamination, which can lead to significant errors in predicted energies, geometries, and properties. Approximate projection schemes are able to correct for spin contamination and can often yield improved results. To fully make use of these methods and to carry out exploration of the potential energy surface, it is desirable to develop an efficient second energy derivative theory. In this paper, we formulate the analytical second derivatives for the Yamaguchi approximate projection scheme, building on recent work that has yielded an efficient implementation of the analytical first derivatives.
Pulse design without rotating wave approximation
S. Ibáñez; Yi-Chao Li; Xi Chen; J. G. Muga
2015-10-21
We design realizable time-dependent semiclassical pulses to invert the population of a two-level system faster than adiabatically when the rotating-wave approximation cannot be applied. Different approaches, based on the counterdiabatic method or on invariants, may lead to singularities in the pulse functions. Ways to avoid or cancel the singularities are put forward when the pulse spans few oscillations. For many oscillations an alternative numerical minimization method is proposed and demonstrated.
Approximate convex decomposition and its applications
Lien, Jyh-Ming
2009-05-15
Approved by: Chair of Committee, Nancy M. Amato Committee Members, Ergun Akleman Ricardo Gutierrez-Osuna Donald H. House John C. Keyser Head of Department, Valerie E. Taylor December 2006 Major Subject: Computer Science iii ABSTRACT Approximate Convex...-Yen Li, for teaching me about research. I would like to thank my committee members, John Keyser, Donald House, Ergun Akleman, and Ricardo Gutierrez-Osuna, who supported me through this challenging journey. I would like to thank everyone in the Algorithms...
Semiclassical approximation in Batalin-Vilkovisky formalism
Albert Schwarz
1992-10-23
The geometry of supermanifolds provided with $Q$-structure (i.e. with odd vector field $Q$ satisfying $\\{ Q,Q\\} =0$), $P$-structure (odd symplectic structure ) and $S$-structure (volume element) or with various combinations of these structures is studied. The results are applied to the analysis of Batalin-Vilkovisky approach to the quantization of gauge theories. In particular the semiclassical approximation in this approach is expressed in terms of Reidemeister torsion.
WKB Approximation to the Power Wall
F. D. Mera; S. A. Fulling; J. D. Bouas; K. Thapa
2013-03-28
We present a semiclassical analysis of the quantum propagator of a particle confined on one side by a steeply, monotonically rising potential. The models studied in detail have potentials proportional to $x^{\\alpha}$ for $x>0$; the limit $\\alpha\\to\\infty$ would reproduce a perfectly reflecting boundary, but at present we concentrate on the cases $\\alpha =1$ and 2, for which exact solutions in terms of well known functions are available for comparison. We classify the classical paths in this system by their qualitative nature and calculate the contributions of the various classes to the leading-order semiclassical approximation: For each classical path we find the action $S$, the amplitude function $A$ and the Laplacian of $A$. (The Laplacian is of interest because it gives an estimate of the error in the approximation and is needed for computing higher-order approximations.) The resulting semiclassical propagator can be used to rewrite the exact problem as a Volterra integral equation, whose formal solution by iteration (Neumann series) is a semiclassical, not perturbative, expansion. We thereby test, in the context of a concrete problem, the validity of the two technical hypotheses in a previous proof of the convergence of such a Neumann series in the more abstract setting of an arbitrary smooth potential. Not surprisingly, we find that the hypotheses are violated when caustics develop in the classical dynamics; this opens up the interesting future project of extending the methods to momentum space.
Nonlinear adaptive control using radial basis function approximants
Petersen, Jerry Lee
1993-01-01
The purpose of this research is to present an adaptive control strategy using the radial basis function approximation method. Surface approximation methods using radial basis function approximants will first be discussed. ...
RFI Released to Compile Teaming Partner List for Upcoming BENEFIT...
RFI Released to Compile Teaming Partner List for Upcoming BENEFIT FOA RFI Released to Compile Teaming Partner List for Upcoming BENEFIT FOA September 29, 2015 - 10:43am Addthis...
Size scaling of self gravitating polymers and strings
Shoichi Kawamoto; Toshihiro Matsuo
2015-08-04
We study a statistical ensemble of a single polymer with self gravitational interaction. This is a model of a gravitating string --- the precursor of a black hole. We analyze averaged sizes by mean field approximations with an effective Hamiltonian a la Edwards with Newtonian potential as well as a contact repulsive interaction. We find that there exists a certain scaling region where the attractive and the repulsive forces balance out. The repulsive interaction pushes the critical gravitational coupling to a larger value, at which the size of a polymer becomes comparable to its Schwarzschild radius, and as a result the size of the corresponding black hole increases considerably. We show phase diagrams in various dimensions that clarify how the size changes as the strengths of repulsive and gravitational forces vary.
Announcing the "Top 10" List of Green Utility Leaders
Office of Energy Efficiency and Renewable Energy (EERE)
Find out if your utility made the National Renewable Energy Laboratory's list of top green power programs.
Hydrogen Storage Pre-Solicitation Meeting Attendee List
Broader source: Energy.gov [DOE]
A list of attendees for the Hydrogen Storage Pre-Solicitation Meeting held June 19, 2003 in Washington, DC.
Innovative Manufacturing Initiative Recognition Day- Final Participant Listing
Broader source: Energy.gov [DOE]
Participant listing for Innovative Manufacturing Initiative Recognition Day held in Washington, D.C. on June 20, 2012
Sensitivity approximation for robust stability and tracking
McLean, Chris Steven
1984-01-01
) Norman W. Na gle (Member) Don R. Halverson (Member) William B. Jones (Head of Department) May 1984 1n Abstract Sensitivity Approximation for Robust Stability and Tracking. (May 1984) Chris Steven McLean, B. S, , Louisiana Tech University... indispensable to the completion of this thesis. I would like to thank Dr. S. P. Bhattacharyya for introducing me to the wonders of automatic control. I also would like to thank Dr. D. R. Halverson and Dr. N. W. Naugle for serving on my committee, Dr. John...
Relativistic Random Phase Approximation At Finite Temperature
Niu, Y. F.; Paar, N.; Vretenar, D.; Meng, J.
2009-08-26
The fully self-consistent finite temperature relativistic random phase approximation (FTRRPA) has been established in the single-nucleon basis of the temperature dependent Dirac-Hartree model (FTDH) based on effective Lagrangian with density dependent meson-nucleon couplings. Illustrative calculations in the FTRRPA framework show the evolution of multipole responses of {sup 132}Sn with temperature. With increased temperature, in both monopole and dipole strength distributions additional transitions appear in the low energy region due to the new opened particle-particle and hole-hole transition channels.
Gudrun's (NLO) list pp->WW jet
Huston, Joey
Gudrun's (NLO) list 2->3 pp->WW jet pp->VVV pp->H + 2 jets 2->4 pp->4 jets pp->tT + 2jets p->tT bB pp->V+ 3 jets pp->VV + 2 jets pp->VVV + jet pp->WW bB From technology point-of-view start with massless cases such as + 2 jets then add progressively more difficult calculations (additional scales
List of Roofs Incentives | Open Energy Information
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The Background Field Approximation in (quantum) cosmology
R. Parentani
1998-03-12
We analyze the Hamilton-Jacobi action of gravity and matter in the limit where gravity is treated at the background field approximation. The motivation is to clarify when and how the solutions of the Wheeler-DeWitt equation lead to the Schr\\"odinger equation in a given background. To this end, we determine when and how the total action, solution of the constraint equations of General Relativity, leads to the HJ action for matter in a given background. This is achieved by comparing two neighboring solutions differing slightly in their matter energy content. To first order in the change of the 3-geometries, the change of the gravitational action equals the integral of the matter energy evaluated in the background geometry. Higher order terms are governed by the ``susceptibility'' of the geometry. These classical properties also apply to quantum cosmology since the conditions which legitimize the use of WKB gravitational waves are concomitant with those governing the validity of the background field approximation.
The validity of the Background Field Approximation
R. Parentani
1997-10-10
In the absence of a tractable theory of quantum gravity, quantum matter field effects have been so far computed by treating gravity at the Background Field Approximation. The principle aim of this paper is to investigate the validity of this approximation which is not specific to gravity. To this end, for reasons of simplicity and clarity, we shall compare the descriptions of thermal processes induced by constant acceleration (i.e. the Unruh effect) in four dynamical frameworks. In this problem, the position of the ``heavy'' accelerated system plays the role of gravity. In the first framework, the trajectory is treated at the BFA: it is given from the outset and unaffected by radiative processes. In the second one, recoil effects induced by these emission processes are taken into account by describing the system's position by WKB wave functions. In the third one, the accelerated system is described by second quantized fields and in the fourth one, gravity is turned on. It is most interesting to see when and why transitions amplitudes evaluated in different frameworks but describing the same process do agree. It is indeed this comparison that determines the validity of the BFA. It is also interesting to notice that the abandonment of the BFA delivers new physical insights concerning the processes. For instance, in the fourth framework, the ``recoils'' of gravity show that the acceleration horizon area acts as an entropy in delivering heat to accelerated systems.
The local potential approximation in quantum gravity
Dario Benedetti; Francesco Caravelli
2012-10-09
Within the context of the functional renormalization group flow of gravity, we suggest that a generic f(R) ansatz (i.e. not truncated to any specific form, polynomial or not) for the effective action plays a role analogous to the local potential approximation (LPA) in scalar field theory. In the same spirit of the LPA, we derive and study an ordinary differential equation for f(R) to be satisfied by a fixed point of the renormalization group flow. As a first step in trying to assess the existence of global solutions (i.e. true fixed point) for such equation, we investigate here the properties of its solutions by a comparison of various series expansions and numerical integrations. In particular, we study the analyticity conditions required because of the presence of fixed singularities in the equation, and we develop an expansion of the solutions for large R up to order N=29. Studying the convergence of the fixed points of the truncated solutions with respect to N, we find a characteristic pattern for the location of the fixed points in the complex plane, with one point stemming out for its stability. Finally, we establish that if a non-Gaussian fixed point exists within the full f(R) approximation, it corresponds to an R^2 theory.
Recycling Authorizations: Toward Secondary and Approximate Authorizations Model
of matching best suitable approximate authorizations. 1 Introduction Although, every authorization decision
Bethe free energy, Kikuchi approximations and belief propagation
Bethe free energy, Kikuchi approximations and belief propagation algorithms Jonathan S. Yedidia to a stationary point of an approximate free energy, known as the Bethe free energy in statis- tical physics- curate free energy approximations, of which Bethe's approximation is the simplest. Exploiting
LNG fleet increases in size and capabilities
Linser, H.J. Jr.; Drudy, M.J.; Endrizzi, F.; Urbanelli, A.A.
1997-06-02
The LNG fleet as of early 1997 consisted of 99 vessels with total cargo capacity of 10.7 million cu m, equivalent to approximately 4.5 million tons. One of the newest additions to the fleet, the 137,000-cu m tanker Al Zubarah, is five times the size of the original commercial vessel Methane Princess. Al Zubarah`s first loading of more than 60,000 tons occurred in December 1996 for deliver to Japanese buyers from the newly commissioned Qatargas LNG plant at Ras Laffan. That size cargo contains enough clean-burning energy to heat 60,000 homes in Japan for 1 month. Measuring nearly 1,000 ft long, the tanker is among the largest in the industry fleet and joined 70 other vessels of more than 100,000 cu m. Most LNG tankers built since 1975 have been larger-capacity vessels. The paper discusses LNG shipping requirements, containment systems, vessel design, propulsion, construction, operations and maintenance, and the future for larger vessels.
Local random quantum circuits are approximate polynomial-designs
Fernando G. S. L. Brandao; Aram W. Harrow; Michal Horodecki
2015-08-13
We prove that local random quantum circuits acting on n qubits composed of O(t^{10} n^2) many nearest neighbor two-qubit gates form an approximate unitary t-design. Previously it was unknown whether random quantum circuits were a t-design for any t > 3. The proof is based on an interplay of techniques from quantum many-body theory, representation theory, and the theory of Markov chains. In particular we employ a result of Nachtergaele for lower bounding the spectral gap of frustration-free quantum local Hamiltonians; a quasi-orthogonality property of permutation matrices; a result of Oliveira which extends to the unitary group the path-coupling method for bounding the mixing time of random walks; and a result of Bourgain and Gamburd showing that dense subgroups of the special unitary group, composed of elements with algebraic entries, are infty-copy tensor-product expanders. We also consider pseudo-randomness properties of local random quantum circuits of small depth and prove that circuits of depth O(t^{10}n) constitute a quantum t-copy tensor-product expander. The proof also rests on techniques from quantum many-body theory, in particular on the detectability lemma of Aharonov, Arad, Landau, and Vazirani. We give applications of the results to cryptography, equilibration of closed quantum dynamics, and the generation of topological order. In particular we show the following pseudo-randomness property of generic quantum circuits: Almost every circuit U of size O(n^k) on n qubits cannot be distinguished from a Haar uniform unitary by circuits of size O(n^{(k-9)/11}) that are given oracle access to U.
Approximate Stokes Drift Profiles in Deep Water
Breivik, Øyvind; Bidlot, Jean-Raymond
2014-01-01
A deep-water approximation to the Stokes drift velocity profile is explored as an alternative to the monochromatic profile. The alternative profile investigated relies on the same two quantities required for the monochromatic profile, viz the Stokes transport and the surface Stokes drift velocity. Comparisons with parametric spectra and profiles under wave spectra from the ERA-Interim reanalysis and buoy observations reveal much better agreement than the monochromatic profile even for complex sea states. That the profile gives a closer match and a more correct shear has implications for ocean circulation models since the Coriolis-Stokes force depends on the magnitude and direction of the Stokes drift profile and Langmuir turbulence parameterizations depend sensitively on the shear of the profile. The alternative profile comes at no added numerical cost compared to the monochromatic profile.
Does semantic size affect size constancy scaling using lexical stimuli?
Beveridge, Madeleine
2010-11-24
Binocular disparity allows us to perceive the world in 3-dimensions through the process of stereopsis. In this study, we used binocular disparity to induce the size constancy illusion in lexical stimuli. 47 undergraduate ...
ExoMol line lists VIII: A variationally computed line list for hot formaldehyde
Al-Refaie, Ahmed F; Tennyson, Jonathan; Yurchenko, Sergei N
2015-01-01
A computed line list for formaldehyde, H$_2{}^{12}$C$^{16}$O, applicable to temperatures up to $T=1500$~K is presented. An empirical potential energy and {\\it ab initio} dipole moment surfaces are used as the input to nuclear motion program TROVE. The resulting line list, referred to as \\textit{AYTY}, contains 10.3 million rotational-vibrational states and around 10 billion transition frequencies. Each transition includes associated Einstein-$A$ coefficients and absolute transition intensities, for wavenumbers below 10~000 cm\\(^{-1}\\) and rotational excitations up to \\(J=70\\). Room-temperature spectra are compared with laboratory measurements and data currently available in the HITRAN database. These spectra show excellent agreement with experimental spectra and highlight the gaps and limitations of the HITRAN data. The full line list is available from the CDS database as well as at \\url{www.exomol.com}.
Listed waste determination report. Environmental characterization
Not Available
1993-06-01
On September 23, 1988, the US Environmental Protection Agency (EPA) published a notice clarifying interim status requirements for the management of radioactive mixed waste thereby subjecting the Idaho National Engineering Laboratory (INEL) and other applicable Department of Energy (DOE) sites to regulation under the Resource Conservation and Recovery Act (RCRA). Therefore, the DOE was required to submit a Part A Permit application for each treatment, storage, and disposal (TSD) unit within the INEL, defining the waste codes and processes to be regulated under RCRA. The September 1990 revised Part A Permit application, that was approved by the State of Idaho identified 101 potential acute and toxic hazardous waste codes (F-, P-, and U- listed wastes according to 40 CFR 261.31 and 40 CFR 261.33) for some TSD units at the Idaho Chemical Processing Plant. Most of these waste were assumed to have been introduced into the High-level Liquid Waste TSD units via laboratory drains connected to the Process Equipment Waste (PEW) evaporator (PEW system). At that time, a detailed and systematic evaluation of hazardous chemical use and disposal practices had not been conducted to determine if F-, P-, or Unlisted waste had been disposed to the PEW system. The purpose of this investigation was to perform a systematic and detailed evaluation of the use and disposal of the 101 F-, P-, and Unlisted chemicals found in the approved September 1990 Part A Permit application. This investigation was aimed at determining which listed wastes, as defined in 40 CFR 261.31 (F-listed) and 261.33 (P & Unlisted) were discharged to the PEW system. Results of this investigation will be used to support revisions to the RCRA Part A Permit application.
Children's Clothes - Size and Selection.
Vanderpoorten, Ann; Kerbel, Claudia
1980-01-01
, children's clothing should fit well, allow for growth and be durable and easy to care for. Children's Sizes The age of a child does not determine size. Chil dren of the same age may vary greatly in height, weight and body measurements. Clothing... and pants provide room for growth. Durability Because growing children are active and vigorous in play, select clothing that will withstand stress and strain. Clothing that wears out or falls apart before the child outgrows it is frustrating as well...
Suspect Counterfeit SME List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternational Affairs, Before theFebruary 1, 2006of EnergyÂ»SME List Suspect
List of Biodiesel Incentives | Open Energy Information
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List of Doors Incentives | Open Energy Information
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List of Methanol Incentives | Open Energy Information
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List of Microturbines Incentives | Open Energy Information
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List of Siding Incentives | Open Energy Information
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Laboratory Equipment Donation Program - OPMO Address List
Office of Scientific and Technical Information (OSTI)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy of aerosols(Technical Report)(Conference) |OPMO Listing OPMO
WIPP TRU TeamWorks - Acronym List
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
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Laboratory Equipment Donation Program - Equipment List
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and masthead Berkeley LablooksEquipment List
Zevenhoven & Kilpinen List of Abbreviations 13.4.2002 Abb.-1 List of abbreviations
Zevenhoven, Ron
Packaging-derived fuel #12;Zevenhoven & Kilpinen List of Abbreviations 13.4.2002 Abb.-3 PFBC Pressurised parts per million ppmv parts per million by volume PVC Poly vinyl chloride RDF Refuse-derived fuel RE bar) TBBPA Tetrabromo bisphenol A TDF Tyre-derived fuel (i.e. car tyre scrap) TEF Toxicity equivalence
On the complexity of approximating a nash equilibrium
Daskalakis, Constantinos
2011-01-01
We show that computing a relative---that is, multiplicative as opposed to additive---approximate Nash equilibrium in two-player games is PPAD-complete, even for constant values of the approximation. Our result is the first ...
Approximations for the rotational excitation of molecules by atoms
Chu, Shih-I; Dalgarno, A.
1975-01-01
The applicability of the effective close?coupling approximation of Rabitz and the centrifugal decoupling approximation of McGuire and Kouri is examined for a system which models the rotational excitation of molecular nitrogen in collisions...
Report on some recent advances in Diophantine approximation
Waldschmidt, Michel
by linear forms Â· irrationality measures Â· transcendence criterion Â· criteria for algebraic inde- pendence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Rational approximation to a real number . . . . . . . . . . . . . . . . . . . . . . . . 6 1, algebraic and simultaneous approximation to a single number
Guest Editorial Sparse Approximations in Signal and Image Processing
Paris-Sud XI, Université de
Guest Editorial Sparse Approximations in Signal and Image Processing Sparse approximation to solve many other signal processing problems, including blind source separation, feature extraction techniques to images as well as audio and biomedical signals, new efficient im- plementations of greedy
Bond selective chemistry beyond the adiabatic approximation
Butler, L.J. [Univ. of Chicago, IL (United States)
1993-12-01
One of the most important challenges in chemistry is to develop predictive ability for the branching between energetically allowed chemical reaction pathways. Such predictive capability, coupled with a fundamental understanding of the important molecular interactions, is essential to the development and utilization of new fuels and the design of efficient combustion processes. Existing transition state and exact quantum theories successfully predict the branching between available product channels for systems in which each reaction coordinate can be adequately described by different paths along a single adiabatic potential energy surface. In particular, unimolecular dissociation following thermal, infrared multiphoton, or overtone excitation in the ground state yields a branching between energetically allowed product channels which can be successfully predicted by the application of statistical theories, i.e. the weakest bond breaks. (The predictions are particularly good for competing reactions in which when there is no saddle point along the reaction coordinates, as in simple bond fission reactions.) The predicted lack of bond selectivity results from the assumption of rapid internal vibrational energy redistribution and the implicit use of a single adiabatic Born-Oppenheimer potential energy surface for the reaction. However, the adiabatic approximation is not valid for the reaction of a wide variety of energetic materials and organic fuels; coupling between the electronic states of the reacting species play a a key role in determining the selectivity of the chemical reactions induced. The work described below investigated the central role played by coupling between electronic states in polyatomic molecules in determining the selective branching between energetically allowed fragmentation pathways in two key systems.
Glassy dynamics in thermally-activated list sorting
Ling-Nan Zou; Sidney R. Nagel
2010-04-01
Sorting the integers 1 through $N$ into an ordered list is a simple task that can be done rapidly. However, using an algorithm based on the thermally-activated pairwise exchanges of neighboring list elements, we find sorting can display many features of a glass, even for lists as small as $N = 5$. This includes memory and rejuvenation effects during aging --- two hallmarks of glassy dynamics that have been difficult to reproduce in standard glass simulations.
Approximation Algorithms for Multi-criteria Traveling Salesman Problems
Al Hanbali, Ahmad
+3-42 +, respectively. Moreover, we design ran- domized approximation algorithms for multi-criteria () -ATSP (ratio 1 2. Therefore, we design randomized approximation schemes for multi-criteria cycle cover problems by showingApproximation Algorithms for Multi-criteria Traveling Salesman Problems Bodo Manthey1 and L
Numerical Approximation of Vortex Density Evolution in a Superconductor.
Styles, Vanessa
Numerical Approximation of Vortex Density Evolution in a Superconductor. C.M. Elliott & V. Styles Abstract A #12;nite volume/element approximation of a mean #12;eld model of superconducting vortices in one approximations of a two-dimensional version of the mean #12;eld model of superconducting vortices considered
Input-ouput approximation for nonlinear structural dynamics
Beaver, Stefanie Rene'
2009-05-15
. Nonlinear Assumed Model with Fixed Rotation Rate . 51 V NONLINEAR INPUT-OUTPUT APPROXIMATION . . . . . . 54 A. Algorithm Overview . . . . . . . . . . . . . . . . . . . . . 54 B. Linear Input-Output Approximation . . . . . . . . . . . . 57 C. Least Squares.... Quadratic Assumed Modes with Higher-Order Terms . 77 ix CHAPTER Page 2. Application of Nonlinear Input-Output Approxi- mation Algorithm . . . . . . . . . . . . . . . . . . . . 81 a. Linear Input-Output Approximation . . . . . . . 82 b. Least Squares...
Technical Note Variational free energy and the Laplace approximation
Daunizeau, Jean
Technical Note Variational free energy and the Laplace approximation Karl Friston,a, Jérémie October 2006 This note derives the variational free energy under the Laplace approximation, with a focus. This is relevant when using the free energy as an approximation to the log-evidence in Bayesian model averaging
"List of Covered Electric Utilities" under the Public Utility...
Office of Environmental Management (EM)
6 Revised "List of Covered Electric Utilities" under the Public Utility Regulatory Policies Act of 1978 (PURPA) - 2006 Revised Under Title I of the Public Utility Regulatory...
combined_supplemental_hud_multifamily_weatherization_list_3-2...
Broader source: Energy.gov (indexed) [DOE]
lihtc.xls More Documents & Publications list2eligiblemultifamilybuildings10-cfr-440-22b4ii.xls rdmfhlowandverylow.xls hudlist-1...
GAO High Risk List - An Update - David Trimble, Government Accountabil...
Broader source: Energy.gov (indexed) [DOE]
Management for the National Nuclear Security Administration and Office of Environmental Management Workshop 2015 - TrimbleGAO High Risk List.PDF More Documents & Publications...
Sequoia ranked third in TOP500 list | National Nuclear Security...
National Nuclear Security Administration (NNSA)
according to the industry-standard Top500 list. Sequoia, which recently completed its transition to classified computing in support of NNSA's Stockpile Stewardship Program,...
ORIS: the Oak Ridge Imaging System program listings. [Nuclear...
Office of Scientific and Technical Information (OSTI)
program listings. Nuclear medicine imaging with rectilinear scanner and gamma camera Citation Details In-Document Search Title: ORIS: the Oak Ridge Imaging System program...
ORIS: the Oak Ridge Imaging System program listings. [Nuclear...
Office of Scientific and Technical Information (OSTI)
program listings. Nuclear medicine imaging with rectilinear scanner and gamma camera Bell, P. R.; Dougherty, J. M. 62 RADIOLOGY AND NUCLEAR MEDICINE; 46 INSTRUMENTATION RELATED...
List of CHP/Cogeneration Incentives | Open Energy Information
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List of Whole House Fans Incentives | Open Energy Information
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List of utility company aliases | OpenEI Community
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ARM - Measurement - Cloud droplet size
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, Alaska Outreach Home Roomparticle size distributionconcentrationdroplet size
Transformations of Logic Programs on Infinite Lists
Pettorossi, Alberto; Senni, Valerio; 10.1017/S1471068410000177
2010-01-01
We consider an extension of logic programs, called \\omega-programs, that can be used to define predicates over infinite lists. \\omega-programs allow us to specify properties of the infinite behavior of reactive systems and, in general, properties of infinite sequences of events. The semantics of \\omega-programs is an extension of the perfect model semantics. We present variants of the familiar unfold/fold rules which can be used for transforming \\omega-programs. We show that these new rules are correct, that is, their application preserves the perfect model semantics. Then we outline a general methodology based on program transformation for verifying properties of \\omega-programs. We demonstrate the power of our transformation-based verification methodology by proving some properties of Buechi automata and \\omega-regular languages.
UMTRA project list of reportable occurrences
Not Available
1994-04-01
This UMTRA Project List of Reportable occurrences is provided to facilitate efficient categorization of reportable occurrences. These guidelines have been established in compliance with DOE minimum reporting requirements under DOE Order 5000.3B. Occurrences are arranged into nine groups relating to US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project operations for active sites. These nine groupings are provided for reference to determined whether an occurrence meets reporting requirement criteria in accordance with the minimum reporting requirements. Event groups and significance categories that cannot or will not occur, and that do not apply to UMTRA Project operations, are omitted. Occurrence categorization shall be as follows: Group 1. Facility Condition; Group 2. Environmental; Group 3. Personnel Safety; Group 4. Personnel Radiation Protection; Group 5. Safeguards and Security; Group 6. Transportation; Group 7. Value Basis Reporting; Group 8. Facility Status; and Group 9. Cross-Category Items.
Comparison of moment-closure approximations for stochastic chemical kinetics
David Schnoerr; Guido Sanguinetti; Ramon Grima
2015-08-07
In recent years moment-closure approximations (MA) of the chemical master equation have become a popular method for the study of stochastic effects in chemical reaction systems. Several different MA methods have been proposed and applied in the literature, but it remains unclear how they perform with respect to each other. In this paper we study the normal, Poisson, log-normal and central-moment-neglect MAs by applying them to understand the stochastic properties of chemical systems whose deterministic rate equations show the properties of bistability, ultrasensitivity and oscillatory behaviour. Our results suggest that the normal MA is favourable over the other studied MAs. In particular we found that (i) the size of the region of parameter space where a closure gives physically meaningful results, e.g. positive mean and variance, is considerably larger for the normal closure than for the other three closures; (ii) the accuracy of the predictions of the four closures (relative to simulations using the stochastic simulation algorithm) is comparable in those regions of parameter space where all closures give physically meaningful results; (iii) the Poisson and log-normal MAs are not uniquely defined for systems involving conservation laws in molecule numbers. We also describe the new software package MOCA which enables the automated numerical analysis of various MA methods in a graphical user interface and which was used to perform the comparative analysis presented in this paper. MOCA allows the user to develop novel closure methods and can treat polynomial, non-polynomial, as well as time-dependent propensity functions, thus being applicable to virtually any chemical reaction system.
LIBRA: a MATLAB Library for Robust Analysis List of Functions
LIBRA: a MATLAB Library for Robust Analysis List of Functions October 31, 2011 This document contains the list of functions that are currently available in the `MATLAB Library for Robust Analysis and quadratic discriminant analysis 22-04-2004 (classification of low-dimensional data) classifskew Robust
Withdrawn FIPS Listed by Number Updated 3/31/14
-113), to use technical industry standards that are developed in voluntary consensus standards bodiesWithdrawn FIPS Listed by Number Updated 3/31/14 The former Federal Information Processing Standards (FIPS) listed below have been withdrawn. Many of these FIPS had adopted voluntary industry standards
UNESCO's world heritage sites A danger list in danger
UNESCO's world heritage sites A danger list in danger In its care for precious places, the UN heritage sites in danger"--taken at a meeting in Brasília that concluded on August 3rd--was only one put the archipelago on its danger list--one of the strongest signals it can send that the integrity
Electrical Engineering Math/Science/Engineering Elective List
Bigelow, Stephen
Rev 3/07 Electrical Engineering Math/Science/Engineering Elective List Math/Science/Engineering Electives, as defined by the Electrical Engineering Program, are listed below: * Course must be taken units) Courses that can be used to fulfill this requirement: Within the College of Engineering · Any
Upcoming H2USA Workshop: Hydrogen Fueling Station Component Listings
Broader source: Energy.gov [DOE]
H2USA will host an online workshop about hydrogen fueling station component listings on April 22 from 2 to 3:30 p.m. Eastern Daylight Time. This workshop will focus on the need for components for hydrogen fueling stations to be listed by Nationally Recognized Testing Laboratories (NRTLs).
Page 1 of 1 Price list for the NORTEM facilities
Johansen, Tom Henning
Page 1 of 1 Price list for the NORTEM facilities 1. April 2013 31. March 2014 The following prices apply to all activities from April 1st 2013, and should be used as a basis for applications for future funding. The price list is preliminary, changes should be expected when the full NORTEM running
The Dependence of the Age Parameter from EAS Size and Zenith Angle of Incidence
A. A. Chilingarian; G. V. Gharagyozyan; S. S. Ghazaryan; G. G. Hovsepyan; E. A. Mamidjanyan; L. G. Melkumyan; S. H. Sokhoyan
2000-02-03
The quality of the MAKET-ANI detector installation in view of the uniformity of the registration efficiency is demonstrated. Based on a data sample collected by the MAKET-ANI array in the period of June 1997 - March 1999, the dependencies of the age parameter on the zenith angle and the EAS size (10^5-10^7) are studied. The variation of the age parameter with the shower size can be approximately related to the elongation rate.
Effect of age and concentration of sperm on conception rate and litter size in swine
Licon Quintero, Mario Alberto
1971-01-01
Effect of parity on conception rate and litter size Analysis of variance for conception rate Analysis of variance for litter size 22 23 24 INTRODUCTION The artificial insemination of swine evolved, in Norway, Japan, England, The Netherlands... artificial insemination. Most of the researchers dealing with artificial insemination of swine recommend that approximately five billion live sperm cells be used per insemination. However, other investigators have suggested that with two billion...
Project List SESSION 2012-2013 Chris Booth 21/09/2012 PHYSICS THIRD YEAR PROJECT LIST (Semester 1)
Crowther, Paul
PTO Project List SESSION 2012-2013 Chris Booth 21/09/2012 PHY341 PHYSICS THIRD YEAR PROJECT LIST of solar photovoltaic systems 7. Dr A Buckley D Assessing a patent for a new solar energy technology 8. Dr neutron fusion generator 53. Dr M Mears E A physics approach to male infertility 54. Dr M Mears E
Automating approximate Bayesian computation by local linear regression
Thornton, Kevin R
2009-01-01
computation by local linear regression Kevin R Thorntonof ABC based on using a linear regression to approximate theimplements the local linear-regression approach to ABC. The
The Numerical Approximation of Solutions of Partial Differential ...
2009-05-05
i.e., instead of thinking of the approximate solution as being linear between .... Consider the mildly nonlinear two-point boundary problem given by. ?(aux )x + c(
How to Solve Schroedinger Problems by Approximating the Potential Function
Ledoux, Veerle; Van Daele, Marnix
2010-09-30
We give a survey over the efforts in the direction of solving the Schroedinger equation by using piecewise approximations of the potential function. Two types of approximating potentials have been considered in the literature, that is piecewise constant and piecewise linear functions. For polynomials of higher degree the approximating problem is not so easy to integrate analytically. This obstacle can be circumvented by using a perturbative approach to construct the solution of the approximating problem, leading to the so-called piecewise perturbation methods (PPM). We discuss the construction of a PPM in its most convenient form for applications and show that different PPM versions (CPM,LPM) are in fact equivalent.
Approximation Algorithms for the Fault-Tolerant Facility Placement Problem
Yan, Li
2013-01-01
5.2 Algorithm ECHS with Ratio5.3 Algorithm EBGS with RatioFormulation 2.1.3 Approximation Algorithms . 2.1.4 Bifactor
ANALOG QUANTUM NEURON FOR FUNCTIONS APPROXIMATION A. EZHOV; A...
Office of Scientific and Technical Information (OSTI)
FOR FUNCTIONS APPROXIMATION A. EZHOV; A. KHROMOV; G. BERMAN 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; IMPLEMENTATION; NERVE CELLS; WAVEGUIDES We describe a system able...
Using the depth-velocity-size diagram to interpret equilibrium bed configurations in river flows
Southard, J.B. (Massachusetts Institute of Technology, Cambridge, MA (USA))
1990-05-01
Data from flume studies that report equilibrium bed configuration as well as water temperature, flow depth, flow velocity, and sediment size were used to develop the best approximation to the relationships among the various bed phases (ripples, dunes, lower regime plane bed, upper regime plane bed, and antidunes) in a three-axis graph (depth-velocity-size diagram) with dimensionless measures of mean flow depth, mean flow velocity, and sediment size along the axis. Relationships are shown in a series of depth-velocity and velocity-size sections through the diagram. Boundaries between bed-phase stability fields are drawn as surfaces that minimize, misplacement of data points. A large subset of the data, for which reliable values of bed shear stress are reported, was also used to represent the stability relationships in a graph of dimensionless boundary shear stress against dimensionless sediment size, but with results less useful for fluvial flow interpretation. The diagram covers about one order of magnitude in flow depth. To be useful for river flows, the diagram must be extrapolated in flow depth by about one more order of magnitude, but this is not a serious problem for approximate work. The depth-velocity-size diagram permits prediction of equilibrium bed configuration in river flows when the approximate flow depth and mean flow velocity are known. Because the diagram is essentially dimensionless, the effect of water temperature (via the fluid viscosity) on the bed configuration is easily accounted for by use of the diagram.
Ab initio estimates of the size of the observable universe
Page, Don N., E-mail: profdonpage@gmail.com [Department of Physics, 4-183 CCIS, University of Alberta, Edmonton, Alberta T6G 2E1 Canada (Canada)
2011-09-01
When one combines multiverse predictions by Bousso, Hall, and Nomura for the observed age and size of the universe in terms of the proton and electron charge and masses with anthropic predictions of Carter, Carr, and Rees for these masses in terms of the charge, one gets that the age of the universe should be roughly the inverse 64th power, and the cosmological constant should be around the 128th power, of the proton charge. Combining these with a further renormalization group argument gives a single approximate equation for the proton charge, with no continuous adjustable or observed parameters, and with a solution that is within 8% of the observed value. Using this solution gives large logarithms for the age and size of the universe and for the cosmological constant that agree with the observed values within 17%.
Coating thermal noise of a finite-size cylindrical mirror
Kentaro Somiya; Kazuhiro Yamamoto
2009-03-17
Thermal noise of a mirror is one of the limiting noise sources in the high precision measurement such as gravitational-wave detection, and the modeling of thermal noise has been developed and refined over a decade. In this paper, we present a derivation of coating thermal noise of a finite-size cylindrical mirror based on the fluctuation-dissipation theorem. The result agrees to a previous result with an infinite-size mirror in the limit of large thickness, and also agrees to an independent result based on the mode expansion with a thin-mirror approximation. Our study will play an important role not only to accurately estimate the thermal-noise level of gravitational-wave detectors but also to help analyzing thermal noise in quantum-measurement experiments with lighter mirrors.
Borgers et al. Approximate, not perfect synchrony maximizes the
Börgers, Christoph
@tufts.edu 1 Department of Mathematics, Tufts University, Medford, MA 02155, USA Full list of author and inhibitory neurons (E- and I-cells); see Section 2.6 for the complete details. There are 200 E-cells (above the dashed line in the figure) and 50 I-cells (below the dashed line). The E-cells receive strong external
ARM - Measurement - Hydrometeor Size Distribution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, Alaska Outreach Home Roomparticle sizefraction ARMGeometry ARM DataSize
Creating a word list for technical and clerical personnel
Hammond, J S
1988-05-01
The Savannah River Plant and Laboratory employ more than 16,000 people. When the separate Publications Divisions of the Plant and Laboratory were combined it was determined that a single source of information for using terms was needed, and that the source would take the form of a word list. The Word List was issued to more than 5000 employees onsite. In addition, the Word List is being added to the site computer network as a reference document and as an online spelling checker where more than 2000 employees will have access to it through their personal computers.
List of Building Insulation Incentives | Open Energy Information
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List of Caulking/Weather-stripping Incentives | Open Energy Information
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List of Ceiling Fan Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds JumpOxiranchemRemodelersList ofList ofListCeiling
List of Clothes Washers Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds JumpOxiranchemRemodelersList ofListList ofWashers
List of Commercial Cooking Equipment Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds JumpOxiranchemRemodelersList ofListList
List of Solar Thermal Electric Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressedList of RefuelingRoomList of SolarList
List of Vending Machine Controls Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressedList of RefuelingRoomListList of Vending
List of Water Heaters Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressedList of RefuelingRoomListList of
List of Wave Energy Incentives | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressedList of RefuelingRoomListList
Approximate Dynamic Programming for Networks: Fluid Models and Constraint Reduction
Veatch, Michael H.
of approximating functions for the differential cost. The first contribution of this paper is identifying new or piece-wise quadratic. Fluid cost has been used to initialize the value iteration algorithm [5Approximate Dynamic Programming for Networks: Fluid Models and Constraint Reduction Michael H
USING THE LINEAR NOISE APPROXIMATION TO CHARACTERIZE MOLECULAR NOISE IN
Ingalls, Brian
USING THE LINEAR NOISE APPROXIMATION TO CHARACTERIZE MOLECULAR NOISE IN REACTION PATHWAYS Matthew Canada N2L 3G1 Abstract The Linear Noise Approximation offers an elegant analytic method to probe the effects of molecular noise on small-scale chemical reaction pathways by expanding the full chemical Master
Motivation and Outline Hatree-Fock Theory and KLI Approximation
Holzwarth, Natalie
Motivation and Outline Hatree-Fock Theory and KLI Approximation Frozen core orbital approximation March 24, 2011 Xiao Xu, N. A. W. Holzwarth PAW + HF & KLI #12;Motivation and Outline Hatree-Fock Theory of HF and KLI Conclusion Outline 1 Motivation of this work: Why? orbital dependent functionals + PAW 2
Transport approximations in partially diffusive media Guillaume Bal
Bal, Guillaume
Transport approximations in partially diffusive media Guillaume Bal Department of Applied Physics concerns the analysis of approximations of transport equations in diffusive media. Firstly, we consider a variational formulation for the first-order transport equation that has the correct diffusive behavior
PROJECT REPORT USING NEURAL NETWORKS FOR APPROXIMATE RADIOSITY FORM FACTOR
Anderson, Charles W.
PROJECT REPORT USING NEURAL NETWORKS FOR APPROXIMATE RADIOSITY FORM FACTOR COMPUTATION Submitted, between each pair of objects within the scene. This project report explores the use of neural networks.3 Approximation with Neural Networks : : : : : : : : : : : : : : : : : : : : : : : 2 1.4 Outline of Project Report
Tighter Bounds for Graph Steiner Tree Approximation Gabriel Robins
Zelikovsky, Alexander
and properties. In Section 3 we present our main algorithm, called k-LCA. The basic approximation result for k-LCA is proved in Section 4. In Sections 5 and 6 we prove an approximation ratio of the k-LCA algorithm in general graphs, and estimate the performance of the Iterated 1-Steiner and k-LCA heuristics in qu
Tutorial, GECCO'05, Washington D.C. Fitness Approximation
Yang, Shengxiang
1 Tutorial, GECCO'05, Washington D.C. Fitness Approximation in Evolutionary Computation Yaochu Jin Honda Research Institute Europe Khaled Rasheed University of Georgia Tutorial, GECCO'05, Washington D expensive fitness evaluations Tutorial, GECCO'05, Washington D.C. Fitness Approximation Methods · Problem
The Approximation of Nuclear Contaminant Transport in Porous Media
Douglas Jr., Jim
of a chain of radioactive waste products and to present the results of some typical simulationsThe Approximation of Nuclear Contaminant Transport in Porous Media Jim Douglas, Jr. #3; Chieh;ective and eÆcient numerical method for approximating the solution of equations that govern the transport
Technical Note Variational free energy and the Laplace approximation
Penny, Will
Technical Note Variational free energy and the Laplace approximation Karl Friston,a, Jérémie the variational free energy under the Laplace approximation, with a focus on accounting for additional model complexity induced by increasing the number of model parameters. This is relevant when using the free energy
Fast Vectorless Power Grid Verification Using an Approximate Inverse Technique
Najm, Farid N.
Fast Vectorless Power Grid Verification Using an Approximate Inverse Technique Nahi H. Abdul Ghani Department of ECE University of Toronto Toronto, Ontario, Canada f.najm@utoronto.ca ABSTRACT Power grid Aids General Terms Performance, Algorithms, Verification Keywords Power grid, voltage drop, approximate
Fresnel approximations for acoustic fields of rectangularly symmetric sources
Mast, T. Douglas
Fresnel approximations for acoustic fields of rectangularly symmetric sources T. Douglas Masta for determining the acoustic fields of rectangularly symmetric, baffled, time-harmonic sources under the Fresnel. The expressions presented are generalized to three different Fresnel approximations that correspond, respectively
Energy Content of Colliding Plane Waves using Approximate Noether Symmetries
M. Sharif; Saira Waheed
2011-09-19
This paper is devoted to study the energy content of colliding plane waves using approximate Noether symmetries. For this purpose, we use approximate Lie symmetry method of Lagrangian for differential equations. We formulate the first-order perturbed Lagrangian for colliding plane electromagnetic and gravitational waves. It is shown that in both cases, there does not exist
Approximate and Multipartite Quantum Correlation (Communication) Zhaohui Wei
Jain, Rahul
classical distributions or bipartite quantum states in the single-shot setting by Zhang (Proc. 3rd Innov that the cost to approximate a bipartite quantum state equals that to approximate its exact purifications, which the latter. We characterize the relationship between them by giving upper and lower bounds. 4
THE STICKINESS OF MICROMETER-SIZED WATER-ICE PARTICLES
Gundlach, B.; Blum, J.
2015-01-01
Water ice is one of the most abundant materials in dense molecular clouds and in the outer reaches of protoplanetary disks. In contrast to other materials (e.g., silicates), water ice is assumed to be stickier due to its higher specific surface energy, leading to faster or more efficient growth in mutual collisions. However, experiments investigating the stickiness of water ice have been scarce, particularly in the astrophysically relevant micrometer-sized region and at low temperatures. In this work, we present an experimental setup to grow aggregates composed of ?m-sized water-ice particles, which we used to measure the sticking and erosion thresholds of the ice particles at different temperatures between 114 K and 260 K. We show with our experiments that for low temperatures (below ?210 K), ?m-sized water-ice particles stick below a threshold velocity of 9.6 m s{sup –1}, which is approximately 10 times higher than the sticking threshold of ?m-sized silica particles. Furthermore, erosion of the grown ice aggregates is observed for velocities above 15.3 m s{sup –1}. A comparison of the experimentally derived sticking threshold with model predictions is performed to determine important material properties of water ice, i.e., the specific surface energy and the viscous relaxation time. Our experimental results indicate that the presence of water ice in the outer reaches of protoplanetary disks can enhance the growth of planetesimals by direct sticking of particles.
Properties of the Boltzmann equation in the classical approximation
Tanji, Naoto; Epelbaum, Thomas; Gelis, Francois; Wu, Bin
2014-12-30
We study the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since one has also access to the non-approximated result for comparison.
Properties of the Boltzmann equation in the classical approximation
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Epelbaum, Thomas; Gelis, François; Tanji, Naoto; Wu, Bin
2014-12-30
We examine the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since onemore »has also access to the non-approximated result for comparison.« less
Flatte, Michael E.
size is just below the threshold for failure of the macrospin approximation. DOI: 10.1103/PhysRevB.82 delicate electromagnetic control of electronic states. This control allows sensitive measurement of unknown . Recently it has been pointed out15 that the coherent excitation of the ground-state spin of a small
Assessment of size-fractionated species of curium-244 via alpha spectrometry in groundwater
Buesseler, Ken
). Size fractionated groundwater samples were collected near a disposal basin in F-Area at SRS in 1998 and by 1968 approximately 5 kg had been produced at the Savannah River Site (SRS) [1]. The waste disposal and plutonium from the SRS heavy water moderated reactors. Discharges ceased and a low- permeability clay
A MODEL FOR THE FLEET SIZING OF DEMAND RESPONSIVE TRANSPORTATION SERVICES WITH TIME WINDOWS
Dessouky, Maged
A MODEL FOR THE FLEET SIZING OF DEMAND RESPONSIVE TRANSPORTATION SERVICES WITH TIME WINDOWS Marco a demand responsive transit service with a predetermined quality for the user in terms of waiting time models; Continuous approximation models; Paratransit services; Demand responsive transit systems. #12;3 1
Minnesota Member Lists the Twin Cities' First Energy Fit Certified...
Minnesota Multiple Listing Service for residential real estate. CEE upgraded the 1,774-square-foot house, built in 1952, with a high-efficiency furnace and water heater, attic...
"List of Covered Electric Utilities" under the Public Utility...
8 "List of Covered Electric Utilities" under the Public Utility Regulatory Policies Act of 1978 (PURPA) - 2008 Under Title I of the Public Utility Regulatory Policies Act of 1978...
"List of Covered Electric Utilities" under the Public Utility...
Office of Environmental Management (EM)
9 "List of Covered Electric Utilities" under the Public Utility Regulatory Policies Act of 1978 (PURPA) - 2009 Under Title I, Sec. 102(c) of the Public Utility Regulatory Policies...
List of Appendices of the Subbasin Management Plan for the
List of Appendices of the Subbasin Management Plan for the Lower Middle Mainstem Columbia River. Rare Plants and Plant Communities of the Rock Creek watershed area. Appendix E. Adult salmon passage
List of Appendices of the Subbasin Management Plan for the
List of Appendices of the Subbasin Management Plan for the White Salmon River Appendix A. White Plants and Plant Communities of the White Salmon watershed area. Appendix E. Fisheries Monitoring
Memory blocking and recovery for affect word lists
Moynan, Sarah Catherine
2013-02-22
Smith et al. (2003) found powerful memory blocking and recovery effects for recall of categorized word lists. The present study investigated whether affect, or emotional words could be similarly blocked and recovered, or whether...
List of Examiners for MVMod MASTER of Science in Physics
Heermann, Dieter W.
List of Examiners for MVMod MASTER of Science in Physics Astronomy and Astrophysics: Bartelmann, Quirrenbach, Rix, Schaefer, Springel, Spurzem, Wagner, Wambsganß Atomic, Molecular and Optical Physics: Blaum, Schlichting, Schwarz, Spatz, Tanaka Condensed Matter Physics: Enss, Klingeler, Kowalsky, Pucci, Winnacker
Modeling of thermally induced vibration of carbon Contents list
Maruyama, Shigeo
Modeling of thermally induced vibration of carbon nanotubes ( ) #12;#12;Contents list 1 modeling ....................................................................... 6 1.3 Thermal-Mechanical vibration ...................................................................... 12 2.1.1 Cantilevered SWNT
Oil and gas field code master list, 1993
Not Available
1993-12-16
This document contains data collected through October 1993 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the United States. Other Federal and State government agencies, as well as industry, use the EIA Oil and Gas Field Code Master List as the standard for field identification. A machine-readable version of the Oil and Gas Field Code Master List is available from the National Technical Information Service.
Higher-degree linear approximations of nonlinear systems
Karahan, S.
1989-01-01
In this dissertation, the author develops a new method for obtaining higher degree linear approximations of nonlinear control systems. The standard approach in the analysis and synthesis of nonlinear systems is a first order approximation by a linear model. This is usually performed by obtaining a series expansion of the system at some nominal operating point and retaining only the first degree terms in the series. The accuracy of this approximation depends on how far the system moves away from the normal point, and on the relative magnitudes of the higher degree terms in the series expansion. The approximation is achieved by finding an appropriate nonlinear coordinate transformation-feedback pair to perform the higher degree linearization. With the proposed method, one can improve the accuracy of the approximation up to arbitrarily higher degrees, provided certain solvability conditions are satisfied. The Hunt-Su linearizability theorem makes these conditions precise. This approach is similar to Poincare's Normal Form Theorem in formulation, but different in its solution method. After some mathematical background the author derives a set of equations (called the Homological Equations). A solution to this system of linear equations is equivalent to the solution to the problem of approximate linearization. However, it is generally not possible to solve the system of equations exactly. He outlines a method for systematically finding approximate solutions to these equations using singular value decomposition, while minimizing an error with respect to some defined norm.
Hydrocracking process using disparate catalyst particle sizes
Kukes, S.G.; Miller, J.T.; Gutberlet, L.C.; Kelterboro, J.C
1989-05-30
This patent describes a process for the hydrocracking of a hydrocarbon feedstock which comprises reacting the feedstock with hydrogen at hydrocracking conversion conditions in a plurality of reaction zones in series containing hydrocracking catalyst wherein at least one of the reaction zones contains a small nominal size hydrocracking catalyst wherein the small nominal size catalyst has a U.S. sieve mesh size ranging from about 10 to about 16, and wherein at least one reaction zone upstream of the reaction zone containing the small nominal size hydrocracking catalyst having a particle size greater than the small nominal size hydrocracking catalyst.
Improved approximate formulas for flux from cylindrical and rectangular sources
Wallace, O.J.; Bokharee, S.A.
1993-03-01
This report provides two new approximate formulas for the flux at detector points outside the radial and axial extensions of a homogeneous cylindrical source and improved approximate formulas for the flux at points opposite rectangular surface sources. These formulas extend the range of geometries for which analytic approximations may be used by shield design engineers to make rapid scoping studies and check more extensive calculations for reasonableness. These formulas can be used to support skeptical, independent evaluations and are also valuable teaching tools for introducing shield designers to complex shield analyses.
Eikonal approximation in the theory of energy loss by fast charged particles
Matveev, V. I., E-mail: matveev.victor@pomorsu.ru; Makarov, D. N.; Gusarevich, E. S. [Lomonosov Pomor State University (Russian Federation)
2011-05-15
Energy losses in fast charged particles as a result of collisions with atoms are considered in the eikonal approximation. It is shown that the nonperturbative contribution to effective stopping in the range of intermediate impact parameters (comparable with the characteristic sizes of the electron shells of the target atoms) may turn out to be significant as compared to shell corrections to the Bethe-Bloch formula calculated in perturbation theory. The simplifying assumptions are formulated under which the Bethe-Bloch formula can be derived in the eikonal approximation. It is shown that the allowance for nonperturbative effects may lead to considerable (up to 50%) corrections to the Bethe-Bloch formula. The applicability range for the Bethe-Bloch formula is analyzed. It is concluded that calculation of the energy loss in the eikonal approximation (in the range of impact parameters for which the Bethe-Bloch formula is normally used) is much more advantageous than analysis based on the Bethe-Bloch formula and its modifications because not only the Bloch correction is included in the former calculations, the range of intermediate impact parameters is also taken into account nonperturbatively; in addition, direct generalization to the cases of collisions of complex projectiles and targets is possible in this case.
Prinz, Friedrich B.
Bleecker: WC Reporting Check List Risk Management 12/10/2012 Initial Injury/Illness Reporting Check List Questions contact Department's HR or Risk Management 650-723-7400 Any Death or Serious Injury://www.stanford.edu/dept/EHS/prod/general/su17.pdf Within 24 HRS Worker & Supervisor Fax to 650-723-9456 Original to Mail Code 6207 DWC 1 http://www.stanford.edu/dept/Risk-Management
Novel ultrafine grain size processing of soft magnetic materials.
Michael, Joseph Richard; Robino, Charles Victor
2009-01-01
High performance soft magnetic alloys are used in solenoids in a wide variety of applications. These designs are currently being driven to provide more margin, reliability, and functionality through component size reductions; thereby providing greater power to drive ratio margins as well as decreases in volume and power requirements. In an effort to produce soft magnetic materials with improved properties, we have conducted an initial examination of one potential route for producing ultrafine grain sizes in the 49Fe-49Co-2V alloy. The approach was based on a known method for the production of very fine grain sizes in steels, and consisted of repeated, rapid phase transformation cycling through the ferrite to austenite transformation temperature range. The results of this initial attempt to produce highly refined grain sizes in 49Fe-49Co-2V were successful in that appreciable reductions in grain size were realized. The as-received grain size was 15 {micro}m with a standard deviation of 9.5 {micro}m. For the temperature cycling conditions examined, grain refinement appears to saturate after approximately ten cycles at a grain size of 6 {micro}m with standard deviation of 4 {micro}m. The process also reduces the range of grain sizes present in these samples as the largest grain noted in the as received and treated conditions were 64 and 26 {micro}m, respectively. The results were, however, complicated by the formation of an unexpected secondary ferritic constituent and considerable effort was directed at characterizing this phase. The analysis indicates that the phase is a V-rich ferrite, known as {alpha}{sub 2}, that forms due to an imbalance in the partitioning of vanadium during the heating and cooling portions of the thermal cycle. Considerable but unsuccessful effort was also directed at understanding the conditions under which this phase forms, since it is conceivable that this phase restricts the degree to which the grains can be refined. Due to this difficulty and the relatively short timeframe available in the study, magnetic and mechanical properties of the refined material could not be evaluated. An assessment of the potential for properties improvement through the transformation cycling approach, as well as recommendations for potential future work, are included in this report.
1 INTRODUCTION 1.1 Optical sizing
Maerz, Norbert H.
mining operation, from the drilling and blasting to the final product; the material size dictates all downstream operating costs. Previously, the only way to measure a size distribution was to stop production
The local potential approximation in the background field formalism
I. Hamzaan Bridle; Juergen A. Dietz; Tim R. Morris
2014-03-20
Working within the familiar local potential approximation, and concentrating on the example of a single scalar field in three dimensions, we show that the commonly used approximation method of identifying the total and background fields, leads to pathologies in the resulting fixed point structure and the associated spaces of eigenoperators. We then show how a consistent treatment of the background field through the corresponding modified shift Ward identity, can cure these pathologies, restoring universality of physical quantities with respect to the choice of dependence on the background field, even within the local potential approximation. Along the way we point out similarities to what has been previously found in the f(R) approximation in asymptotic safety for gravity.
The WKB approximation for a linear potential and ceiling
Zapata, Todd Austin
2009-05-15
The physical problem this thesis deals with is a quantum system with linear potential driving a particle away from a ceiling (impenetrable barrier). This thesis will construct the WKB approximation of the quantum mechanical propagator...
Mean Field Variational Approximations in Continuous-Time Markov Processes
Friedman, Nir
Mean Field Variational Approximations in Continuous-Time Markov Processes A thesis submitted Processes . . . . . . . . . . . . . . . . . . . 18 2.3 Continuous Time Markov Processes-component Representation - Continuous Time Bayesian Networks . 24 2.3.3 Inference in Continuous Time Markov Processes
Numerical Approximations of Stochastic Optimal Stopping and Control Problems
Siska, David
2007-01-01
We study numerical approximations for the payoff function of the stochastic optimal stopping and control problem. It is known that the payoff function of the optimal stopping and control problem corresponds to the solution ...
Approximate translation : media, narrative, and experience in urban design
Crisman, Jonathan
2013-01-01
Approximate translation is developed as a design process through which the place-embedded history of an urban environment can be understood, allowing for better design and intervention in that urban environment. Generally, ...
Tractability through approximation : a study of two discrete optimization problems
Farahat, Amr, 1973-
2004-01-01
(cont.) algorithm, at one extreme, and complete enumeration, at the other extreme. We derive worst-case approximation guarantees on the solution produced by such an algorithm for matroids. We then define a continuous ...
Queueing systems subject to random server failures: an approximation
Matis, Timothy
1998-01-01
research into finding exact or approximate methods that adjust key performance measures of a system to reflect server failures. Many of the methods that have been developed suffer either from a high degree of computational complexity or from tight...
APPROXIMATING SPECTRAL INVARIANTS OF HARPER OPERATORS ON GRAPHS II
Schick, Thomas
APPROXIMATING SPECTRAL INVARIANTS OF HARPER OPERATORS ON GRAPHS II VARGHESE MATHAI, THOMAS SCHICK;2 VARGHESE MATHAI, THOMAS SCHICK, AND STUART YATES subset E+ of these edges in which each combinatorial edge
Approximate dynamic programming with applications in multi-agent systems
Valenti, Mario J. (Mario James), 1976-
2007-01-01
This thesis presents the development and implementation of approximate dynamic programming methods used to manage multi-agent systems. The purpose of this thesis is to develop an architectural framework and theoretical ...
Grain size dependence of barchan dune dynamics
C. Groh; N. Aksel; I. Rehberg; C. Kruelle
2008-11-28
The dependence of the barchan dune dynamics on the size of the grains involved is investigated experimentally. Downsized barchan dune slices are observed in a narrow water flow tube. The relaxation time from an initial symmetric triangular heap towards an asymmetric shape attractor increases with dune mass and decreases with grain size. The dune velocity increases with grain size. In contrast, the velocity scaling and the shape of the barchan dune is independent of the size of the grains.
Approximate Description of the Mandelbrot Set. Thermodynamic Analogy
O. B. Isaeva; S. P. Kuznetsov
2005-04-29
Analogy between an approximate version of Feigenbaum renormalization group analysis in complex domain and the phase transition theory of Yang-Lee (based on consideration of formally complexified thermodynamic values) is discussed. It is shown that the Julia sets of the renormalization transformation correspond to the approximation of Mandelbrot set of the original map. New aspects of analogy between the theory of dynamical systems and the phase transition theory are uncovered.
Resonant-state expansion Born Approximation applied to Schrodinger's Equation
Doost, M B
2015-01-01
The RSE Born Approximation is a new scattering formula in Physics, it allows the calculation of strong scattering via the Fourier transform of the scattering potential and Resonant-states. In this paper I apply the RSE Born Approximation to Schr\\"odinger's Equation. The resonant-states of the system can be calculated using the recently discovered RSE perturbation theory and normalised correctly to appear in spectral Green's functions via the flux volume normalisation.
Mean field approximation for noisy delay coupled excitable neurons
Nikola Buric; Dragana Rankovic; Kristina Todorovic; Nebojsa Vasovic
2010-03-26
Mean field approximation of a large collection of FitzHugh-Nagumo excitable neurons with noise and all-to-all coupling with explicit time-delays, modelled by $N\\gg 1$ stochastic delay-differential equations is derived. The resulting approximation contains only two deterministic delay-differential equations but provides excellent predictions concerning the stability and bifurcations of the averaged global variables of the exact large system.
Investigation of thermochemical biorefinery sizing and environmental...
Office of Scientific and Technical Information (OSTI)
biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with...
Semicontinuous Sized Types and Termination Andreas Abel #
Abel, Andreas
, and classical applications are total correctness and termination of partial evaluation. In languagesSemicontinuous Sized Types and Termination Andreas Abel # Institut für Informatik Ludwig to termination uses sized types: an ordinal bound for the size of a data structure is stored in its type
Not Available
1993-04-01
The United States Department of Energy (DOE) has declared that all Hanford plutonium production- and operations-related information generated between 1944 and 1972 is declassified. Any documents found and deemed useful for meeting Hanford Environmental Dose Reconstruction (HEDR) objectives may be declassified with or without deletions in accordance with DOE guidance by Authorized Derivative Declassifiers. The September 1992, letter report, Declassifications Requested by the Technical Steering Panel of Hanford Documents Produced 1944--1960, (PNWD-2024 HEDR UC-707), provides an important milestone toward achieving a complete listing of documents that may be useful to the HEDR Project. The attached listing of approximately 7,000 currently classified Hanford-originated documents relative to Hanford Production Facilities Operations between 1961 and 1972 fulfills TSP Directive 89-3. This list does not include such titles as the Irradiation Processing Department, Chemical Processing Department, and Hanford Laboratory Operations monthly reports generated after 1960 which have been previously declassified with minor deletions and made publicly available. Also Kaiser Engineers Hanford (KEH) Document Control determined that no KEH documents generated between January 1, 1961 and December 31, 1972 are currently classified. Titles which address work for others have not been included because Hanford Site contractors currently having custodial responsibility for these documents do not have the authority to determine whether other than their own staff have on file an appropriate need-to-know. Furthermore, these documents do not normally contain information relative to Hanford Site operations.
Blue MedicareRx (PDP)SM 2012 Comprehensive Drug List
Oklahoma, University of
Blue MedicareRx (PDP)SM 2012 Comprehensive Drug List PLEASE READ: THIS DOCUMENT CONTAINS DrugList Blue MedicareRx (PDP)SM 2012 Formulary (List of Covered Drugs) DrugList PLEASE READ. Blue MedicareRx (PDP) is a stand-alone prescription drug plan with a Medicare contract offered by HCSC
Size-dependent solute segregation and total solubility in ultrafine polycrystals: Ca in TiO[sub 2
Terwilliger, C.D.; Chiang, Y.M. (Massachusetts Inst. of Technology, Cambridge, MA (United States). Dept. of Materials Science and Engineering)
1995-01-01
Grain boundary segregation at ultrafine grain sizes has been studied. Using a STEM microanalysis technique to quantify the grain boundary coverage of calcium (0.34 mol%) in TiO[sub 2] ranging in grain size from 50 to 750 nm, it is found that below grain sizes of 150--350 nm, segregation deviates from conventional isotherms, exhibiting a clear size dependence. In this size regime the interfacial area to volume ratio is as important as temperature and composition in determining grain boundary coverage. In the present system, grain boundaries become saturated with calcium when the coverage reaches approximately one half of an equivalent monolayer. The experimental results can be modeled by a statistical thermodynamical treatment of segregation which takes into account the large density of grain boundary sites in this size range. The authors also find direct evidence of enhanced total solubility at very fine grain sizes due to grain boundary segregation.
Aggelen, Helen van; Department of Chemistry, Duke University, Durham, North Carolina 27708 ; Yang, Yang; Yang, Weitao
2014-05-14
Despite their unmatched success for many applications, commonly used local, semi-local, and hybrid density functionals still face challenges when it comes to describing long-range interactions, static correlation, and electron delocalization. Density functionals of both the occupied and virtual orbitals are able to address these problems. The particle-hole (ph-) Random Phase Approximation (RPA), a functional of occupied and virtual orbitals, has recently known a revival within the density functional theory community. Following up on an idea introduced in our recent communication [H. van Aggelen, Y. Yang, and W. Yang, Phys. Rev. A 88, 030501 (2013)], we formulate more general adiabatic connections for the correlation energy in terms of pairing matrix fluctuations described by the particle-particle (pp-) propagator. With numerical examples of the pp-RPA, the lowest-order approximation to the pp-propagator, we illustrate the potential of density functional approximations based on pairing matrix fluctuations. The pp-RPA is size-extensive, self-interaction free, fully anti-symmetric, describes the strong static correlation limit in H{sub 2}, and eliminates delocalization errors in H{sub 2}{sup +} and other single-bond systems. It gives surprisingly good non-bonded interaction energies – competitive with the ph-RPA – with the correct R{sup ?6} asymptotic decay as a function of the separation R, which we argue is mainly attributable to its correct second-order energy term. While the pp-RPA tends to underestimate absolute correlation energies, it gives good relative energies: much better atomization energies than the ph-RPA, as it has no tendency to underbind, and reaction energies of similar quality. The adiabatic connection in terms of pairing matrix fluctuation paves the way for promising new density functional approximations.
Choosing the Summary Statistics and the Acceptance Rate in Approximate Bayesian
Blum, Michael G. B.
Choosing the Summary Statistics and the Acceptance Rate in Approximate Bayesian Computation or not. In this paper, I incorporate Approximate Bayesian Computation into a local Bayesian regression Computation, evidence approximation, empirical Bayes, Bayesian local regression 1 Introduction Approximate
Hazards of explosives dusts: Particle size effects
Cashdollar, K L; Hertzberg, M; Green, G M
1992-02-01
At the request of the Department of Energy, the Bureau of Mines has investigated the hazards of military explosives dispersed as dust clouds in a 20-L test chamber. In this report, the effect of particle size for HMX, HNS, RDX, TATB, and TNT explosives dusts is studied in detail. The explosibility data for these dusts are also compared to those for pure fuel dusts. The data show that all of the sizes of the explosives dusts that were studied were capable of sustaining explosions as dust clouds dispersed in air. The finest sizes (<10 [mu]m) of explosives dusts were less reactive than the intermediate sizes (20 to 60 [mu]m); this is opposite to the particle size effect observed previously for the pure fuel dusts. At the largest sizes studied, the explosives dusts become somewhat less reactive as dispersed dust clouds. The six sizes of the HMX dust were also studied as dust clouds dispersed in nitrogen.
Oil and gas field code master list 1997
1998-02-01
The Oil and Gas Field Code Master List 1997 is the sixteenth annual listing of all identified oil and gas fields in the US. It is updated with field information collected through October 1997. The purpose of this publication is to provide unique, standardized codes for identification of domestic fields. Use of these field codes fosters consistency of field identification by government and industry. As a result of their widespread adoption they have in effect become a national standard. The use of field names and codes listed in this publication is required on survey forms and other reports regarding field-specific data collected by EIA. There are 58,366 field records in this year`s FCML, 437 more than last year. The FCML includes: field records for each State and county in which a field resides; field records for each offshore area block in the Gulf of Mexico in which a field resides; field records for each alias field name (definition of alias is listed); fields crossing State boundaries that may be assigned different names by the respective State naming authorities. This report also contains an Invalid Field Record List of 4 records that have been removed from the FCML since last year`s report. These records were found to be either technically incorrect or to represent field names which were never recognized by State naming authorities.
Prestwich, Ken
effects of temperature, pH, CO2, PO4 2-, and ionic strength on the ability of hemoglobin to bind oxygenBio390 Study Questions for S-N Ch. 2 -- Blood Spring '01 1. Know S-N's list of 10 general functions/properties tends to decrease as body size increases. How does a relatively high P50 serve as an adaptation in small
List of Texas Fuel Mitigation Vendors This list of fuel mitigation vendors that offer services as a service to communities and landowners seeking assistance with fuel mitigation practices on their land/5/2015 #12;List of Fuel Mitigation Vendorscontinued Texas A&M Forest Service Austin Land Service Austin Wod
Variational principles with Padé approximants for tearing mode analysis
Cole, Andrew J.; Finn, John M.
2014-03-15
Tearing modes occur in several distinct physical regimes, and it is often important to compute the inner layer response for these modes with various effects. There is a need for an approximate and efficient method of solving the inner layer equations in all these regimes. In this paper, we introduce a method of solving the inner layer equations based on using a variational principle with Padé approximants. For all the regimes considered, the main layer equations to be solved are inhomogeneous, and Padé approximants give a convenient and efficient method of satisfying the correct asymptotic behavior at the edge of the layer. Results using this variational principle—Padé approximant method in three of these regimes is presented. These regimes are the constant-? resistive-inertial (RI) regime, the constant-? viscoresistive regime, and the non-constant-? inviscid tearing regime. The last regime includes the constant-? RI regime and the inertial regime. The results show that reasonable accuracy can be obtained very efficiently with Padé approximants having a small number of parameters.
Oil and Gas Field Code Master List 1990
Not Available
1991-01-04
This is the ninth annual edition of the Energy Information Administration's (EIA) Oil and Gas Field Code Master List. It reflects data collected through October 1990 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the United States. There are 54,963 field records in this year's Oil and Gas Field Code Master List (FCML). This amounts to 467 more than in last year's report. As it is maintained by EIA, the Master List includes: Field records for each state and county in which a field resides; field records for each offshore area block in the Gulf of Mexico in which a field resides;field records for each alias field name; fields crossing state boundaries that may be assigned different names by the respective state naming authorities.
Sex, Size and Gender Roles evolutionary studies of sexual size dimorphism
Saltzman, Wendy
, John L. Gittleman and Kate E. Jones 3. Sexual Size Dimorphism in Birds , Tamás Székely, Terje Lislevand in the Hartebeest, Isabella Capellini 13. Sexual Size Dimorphism and Offspring Vulnerability in Birds, EllenSex, Size and Gender Roles evolutionary studies of sexual size dimorphism Edited by Daphne J
Oil and gas field code master list 1994
Not Available
1995-01-01
This is the thirteenth annual edition of the Energy Information Administration`s (EIA) Oil and Gas Field Code Master List. It reflects data collected through October 1994 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the United States. The master field name spellings and codes are to be used by respondents when filing the following Department of Energy (DOE) forms: Form EIA-23, {open_quotes}Annual Survey of Domestic Oil and Gas Reserves,{close_quotes} filed by oil and gas well operators (field codes are required from larger operators only); Forms FERC 8 and EIA-191, {open_quotes}Underground Gas Storage Report,{close_quotes} filed by natural gas producers and distributors who operate underground natural gas storage facilities. Other Federal and State government agencies, as well as industry, use the EIA Oil and Gas Field Code Master List as the standard for field identification. A machine-readable version of the Oil and Gas Field Code Master List is available from the National Technical Information Service, 5285 Port Royal Road, Springfield, Virginia 22161, (703) 487-4650. In order for the Master List to be useful, it must be accurate and remain current. To accomplish this, EIA constantly reviews and revises this list. The EIA welcomes all comments, corrections, and additions to the Master List. All such information should be given to the EIA Field Code Coordinator at (214) 953-1858. EIA gratefully acknowledges the assistance provides by numerous State organizations and trade associations in verifying the existence of fields and their official nomenclature.
Fourth-post-Newtonian-exact approximation to General Relativity
David Brizuela; Gerhard Schaefer
2010-04-12
An approximation to General Relativity is presented that agrees with the Einstein field equations up to and including the fourth post-Newtonian (PN) order. This approximation is formulated in a fully constrained scheme: all involved equations are explicitly elliptic except the wave equation that describes the two independent degrees of freedom of the gravitational field. The formalism covers naturally the conformal-flat-condition (CFC) approach by Isenberg, Wilson, and Mathews and the improved second PN-order exact approach CFC+. For stationary configurations, like Kerr black holes, agreement with General Relativity is achieved even through 5PN order. In addition, a particularly interesting 2PN-exact waveless approximation is analyzed in detail, which results from imposing more restrictive conditions. The proposed scheme can be considered as a further development on the waveless approach suggested by Schaefer and Gopakumar [Phys. Rev. D {\\bf 69}, 021501 (2004)].
DOE technical standards list: Department of Energy standards index
NONE
1997-06-01
This technical standards list (TSL) was prepared for use by personnel involved in the selection and use of US DOE technical standards and other government and non-government standards. This TSL provides listings of current DOE technical standards, non-government standards that have been adopted by DOE, other government documents in which DOE has a recorded interest, and cancelled DOE technical standards. Standards are indexed by type in the appendices to this document. Definitions of and general guidance for the use of standards are also provided.
308 Building electrical load list and panel schedules
Giamberardini, S.J.
1994-09-13
This report contains two lists. The first lists equipment, load location, source of power, and breaker identification. The second compiles the same information but in a different format, namely, for each power source, the breaker, equipment, and location is given. Building 308 is part of the Fuels and Materials Examination Facility which houses the Secure Automated Fabrication process line for fabrication of reactor fuels and the Breeder Processing Engineering Test for processing Fast Flux Test Facility fuel to demonstrate closure of the fuel cycle.
List of Anaerobic Digestion Incentives | Open Energy Information
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List of Central Air conditioners Incentives | Open Energy Information
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List of Companies in Biofuels Sector | Open Energy Information
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List of Companies in Biomass Sector | Open Energy Information
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List of Companies in Carbon Sector | Open Energy Information
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List of Companies in Efficiency Sector | Open Energy Information
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List of Companies in Geothermal Sector | Open Energy Information
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List of Companies in Hydrogen Sector | Open Energy Information
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List of Companies in Services Sector | Open Energy Information
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List of Companies in Vehicles Sector | Open Energy Information
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List of Motor VFDs Incentives | Open Energy Information
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List of Municipal Solid Waste Incentives | Open Energy Information
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List of Ocean Thermal Incentives | Open Energy Information
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List of Other Alternative Fuel Vehicles Incentives | Open Energy
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List of Other Distributed Generation Technologies Incentives | Open Energy
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List of Renewable Transportation Fuels Incentives | Open Energy Information
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List of Solar Pool Heating Incentives | Open Energy Information
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List of Solar Space Heat Incentives | Open Energy Information
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List of Solar Thermal Process Heat Incentives | Open Energy Information
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List of Solar Water Heat Incentives | Open Energy Information
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List of Steam-system upgrades Incentives | Open Energy Information
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List of Tidal Energy Incentives | Open Energy Information
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Trigonometric Pade approximants for functions with regularly decreasing Fourier coefficients
Labych, Yuliya A; Starovoitov, Alexander P [Gomel State University, Gomel (Belarus)
2009-08-31
Sufficient conditions describing the regular decrease of the coefficients of a Fourier series f(x)=a{sub 0}/2 + {sigma} a{sub n} cos kx are found which ensure that the trigonometric Pade approximants {pi}{sup t}{sub n,m}(x;f) converge to the function f in the uniform norm at a rate which coincides asymptotically with the highest possible one. The results obtained are applied to problems dealing with finding sharp constants for rational approximations. Bibliography: 31 titles.
L^p Bernstein Inequalities and Radial Basis Function Approximation
Ward, John P.
2012-10-19
are bounded in terms of certain measurements of the set X. The error of approximation will typically be given in terms of the ll distance hX = sup x2Rd inf 2X jjx jj2 ; which measures how far a point in Rd can be from X, and the stability of the ap... will typically be restricted to sets X for which hX is comparable to qX , and sets for which the mesh ratio X := hX=qX is bounded by a constant will be called quasi-uniform. In this paper, we will only consider approximation spaces SX( ) where X is quasi...
On the approximation of crack shapes found during inservice inspection
Bhate, S.R.; Chawla, D.S.; Kushwaha, H.S. [Bhabha Atomic Research Centre, Bombay (India)] [and others
1997-04-01
This paper addresses the characterization of axial internal flaw found during inservice inspection of a pipe. J-integral distribution for various flaw shapes is obtained using line spring finite, element method. The peak J-value and its distribution across the crack is found to be characteristic feature of each shape. The triangular shape yields peak J-value away from the center, the point of depth. The elliptic approximation results in large overestimate of J-value for unsymmetric flaws. Triangular approximation is recommended for such flaws so that further service can be obtained from the component.
On measures of size for convex cones
2015-05-18
Section 2 presents a battery of examples of size indices disseminated in the literature. For each ...... ferent measures of conditioning for conic linear systems.
Interfacial Studies of Sized Carbon Fiber
Shahrul, S. N.; Hartini, M. N.; Hilmi, E. A.; Nizam, A. [Nanomaterials Program, Advance Materials Centre (AMREC), SIRIM Berhad, Lot 34, Jalan Hi-Tech Park, 09000, Kulim, Kedah (Malaysia)
2010-03-11
This study was performed to investigate the influence of sizing treatment on carbon fiber in respect of interfacial adhesion in composite materials, Epolam registered 2025. Fortafil unsized carbon fiber was used to performed the experiment. The fiber was commercially surface treated and it was a polyacrylonitrile based carbon fiber with 3000 filament per strand. Epicure registered 3370 was used as basic sizing chemical and dissolved in two types of solvent, ethanol and acetone for the comparison purpose. The single pull out test has been used to determine the influence of sizing on carbon fiber. The morphology of carbon fiber was observed by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The apparent interfacial strength IFSS values determined by pull out test for the Epicure registered 3370/ethanol sized carbon fiber pointed to a good interfacial behaviour compared to the Epicure registered 3370/acetone sized carbon fiber. The Epicure registered 3370/ethanol sizing agent was found to be effective in promoting adhesion because of the chemical reactions between the sizing and Epolam registered 2025 during the curing process. From this work, it showed that sized carbon fiber using Epicure registered 3370 with addition of ethanol give higher mechanical properties of carbon fiber in terms of shear strength and also provided a good adhesion between fiber and matrix compared to the sizing chemical that contain acetone as a solvent.
Klein, David
pasta chocolate chickpeas fruit preserves beans seeds and nuts kidney beans biscuits and sweets lentils shampoo & conditioner #12;various fishing nets soap & liquid soap buoys toothpaste ropes for fishing dish soap spare parts for tractors glass cleaner dairies for cowsheds floor cleaning fluid irrigation
Strengthening of metallic alloys with nanometer-size oxide dispersions
Flinn, J.E.; Kelly, T.F.
1999-06-01
Austenitic stainless steels and nickel-base alloys containing, by wt. %, 0.1 to 3.0% V, 0.01 to 0.08% C, 0.01 to 0.5% N, 0.05% max. each of Al and Ti, and 0.005 to 0.10% O, are strengthened and ductility retained by atomization of a metal melt under cover of an inert gas with added oxygen to form approximately 8 nanometer-size hollow oxides within the alloy grains and, when the alloy is aged, strengthened by precipitation of carbides and nitrides nucleated by the hollow oxides. Added strengthening is achieved by nitrogen solid solution strengthening and by the effect of solid oxides precipitated along and pinning grain boundaries to provide temperature-stabilization and refinement of the alloy grains. 20 figs.
Strengthening of metallic alloys with nanometer-size oxide dispersions
Flinn, John E. (Idaho Falls, ID); Kelly, Thomas F. (Madison, WI)
1999-01-01
Austenitic stainless steels and nickel-base alloys containing, by wt. %, 0.1 to 3.0% V, 0.01 to 0.08% C, 0.01 to 0.5% N, 0.05% max. each of Al and Ti, and 0.005 to 0.10% O, are strengthened and ductility retained by atomization of a metal melt under cover of an inert gas with added oxygen to form approximately 8 nanometer-size hollow oxides within the alloy grains and, when the alloy is aged, strengthened by precipitation of carbides and nitrides nucleated by the hollow oxides. Added strengthening is achieved by nitrogen solid solution strengthening and by the effect of solid oxides precipitated along and pinning grain boundaries to provide temperature-stabilization and refinement of the alloy grains.
Approximations of very weak solutions to boundary-value problems.
Berggren, Martin Olof
2003-03-01
Standard weak solutions to the Poisson problem on a bounded domain have square-integrable derivatives, which limits the admissible regularity of inhomogeneous data. The concept of solution may be further weakened in order to define solutions when data is rough, such as for inhomogeneous Dirichlet data that is only square-integrable over the boundary. Such very weak solutions satisfy a nonstandard variational form (u, v) = G(v). A Galerkin approximation combined with an approximation of the right-hand side G defines a finite-element approximation of the very weak solution. Applying conforming linear elements leads to a discrete solution equivalent to the text-book finite-element solution to the Poisson problem in which the boundary data is approximated by L{sub 2}-projections. The L{sub 2} convergence rate of the discrete solution is O(h{sub s}) for some s {element_of} (0,1/2) that depends on the shape of the domain, asserting a polygonal (two-dimensional) or polyhedral (three-dimensional) domain without slits and (only) square-integrable boundary data.
APPROXIMATION OF A TWOPHASE CONTINUOUS CASTING STEFAN PROBLEM
APPROXIMATION OF A TWOPHASE CONTINUOUS CASTING STEFAN PROBLEM Zhiming Chen \\Lambda Lishang Jiang y Abstract. The continuous casting Stefan problem is a mathematical model describing the solidification with convection of a material being cast continuously with a prescribed velocity. We propose a practical piecewise
Accelerating Search of Approximate Match on Large Protein Sequence Databases
Wang, Wei
of supporting indexed search on large biological sequence databases since the construction cost of the index Yang 2 , Yi Xia 3 , Philip Yu 4 Keywords: protein sequence index, approximate match. Due. Building an appropriate index structure is one of the possibilities to achieve such a goal, which
APPROXIMATION THEORY OF OUTPUT STATISTICS Dept. Information Systems
Verdú, Sergio
. In order to generate a ran- dom process we assume that a primary random source with an equiprobableAPPROXIMATION THEORY OF OUTPUT STATISTICS Te Sun Han Dept. Information Systems Senshu University-length) source coding rate of any finite-alphabet source, and a strong converse of the identijication coding
Expected Approximation Guarantees for the Demand Matching Problem
Boucher, Christina
Expected Approximation Guarantees for the Demand Matching Problem C. Boucher D. Loker September 2006 Abstract The objective of the demand matching problem is to obtain the subset M of edges which if for each vertex v the total demand of edges in M incident to v is at most bv. In the case where each
Approximability of Partitioning Graphs with Supply and Demand
Demaine, Erik
Approximability of Partitioning Graphs with Supply and Demand Takehiro Ito a,, Erik D. Demaine b vertex or a demand vertex and is assigned a positive real number, called the supply or the demand. Each demand vertex can receive "power" from at most one supply vertex through edges in G. One thus wishes
Approximability of Partitioning Graphs with Supply and Demand
Demaine, Erik
Approximability of Partitioning Graphs with Supply and Demand (Extended Abstract) Takehiro Ito1 vertex or a demand vertex and is assigned a positive real number, called the supply or the demand. Each demand vertex can receive "power" from at most one supply vertex through edges in G. One thus wishes
Approximability of Partitioning Graphs with Supply and Demand
Demaine, Erik
Approximability of Partitioning Graphs with Supply and Demand (Extended Abstract) Takehiro Ito 1 vertex or a demand vertex and is assigned a positive real number, called the supply or the demand. Each demand vertex can receive ``power'' from at most one supply vertex through edges in G. One thus wishes
New approximate radial wave functions for power-law potentials
Vladimir Kudryashov
2007-09-26
Radial wave functions for power-law potentials are approximated with the help of power-law substitution and explicit summation of the leading constituent WKB series. Our approach reproduces the correct behavior of the wave functions at the origin, at the turning points and far away from the turning points
A new shallow approximation for tridimensional non-isothermal viscoplastic
Saramito, Pierre
. The risk assessments for volcanic lava flow pose a difficult challenge to numerical methods. Indeed approximated by an autoadaptive finite element method, based on the Rheolef C++ library, allowing to track with non-isothermal experimental measurements for a silicone oil dome. Next, the December 2010 eruption
A Study of Approximate Data Management Techniques for Sensor Networks
Martin, Ralph R.
the monitoring operation of sensor nodes by efficiently using their limited energy, bandwidth and computation. The network can therefore be treated as a distributed sensor data management system. Sensor networks differA Study of Approximate Data Management Techniques for Sensor Networks Adonis Skordylis, Niki
Approximate bisimulation for a class of stochastic hybrid systems
Pappas, George J.
, target tracking, robotics, and power systems [35]. The field of stochastic hybrid systems is a veryApproximate bisimulation for a class of stochastic hybrid systems (Invited Paper) Agung Julius of stochastic hybrid systems, namely, the jump linear stochastic systems (JLSS). The idea is based
Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks
Liang, Weifa
Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks Weifa Liang, Senior Member, IEEE Abstract--A wireless ad hoc network consists of mobile nodes that are equipped with energy on energy conservation in wireless ad hoc networks have been conducted. For example, energy efficient
Aqua: A Fast Decision Support System Using Approximate Query Answers
Gibbons, Phillip B.
commercial relational DBMS. Aqua precomputes synopses (special sta- tistical summaries) of the original data and stores them in the DBMS. It provides approximate an- swers (with quality guarantees) by rewriting on top of any SQL- compliant DBMS managing a data warehouse. Aqua pre- computes statistical summaries
Approximating many-body induction to efficiently describe molecular liquids
Herbert, John
on the structure and solvation dynamics of the excess electron (in the ground state) but does have a large impact as the structures and properties of molecular systems. This study focuses on approximating many-body electronic methods in order to allow "on-the-fly" energy and force evaluations in dynamical calculations
Approximating Minimum-Power Degree and Connectivity Problems
Kortsarz, Guy
. The power con- sumption of a station determines its transmission range, and thus also the stations it can. Assigning power levels to the stations (nodes) determines the resulting communi- cation network. ConverselyApproximating Minimum-Power Degree and Connectivity Problems Guy Kortsarz Vahab S. Mirrokni Zeev
Dynamic Adaptive Search Based Software Engineering Needs Fast Approximate Metrics
Harman, Mark
1 Dynamic Adaptive Search Based Software Engineering Needs Fast Approximate Metrics Mark Harman. University College Dublin, Ireland. Abstract--Search Based Software Engineering (SBSE) uses fitness functions to guide an automated search for solutions to challenging software engineering problems. The fitness
Novel approximations for inference and learning in nonlinear dynamical systems
Heskes, Tom
Novel approximations for inference and learning in nonlinear dynamical systems Alexander Ypma #3 from marketing research. 1 Introduction Many real-world systems are nonlinear, dynamical and stochastic in nature. Inference and learning of nonlinear system models with hidden dynamics is a diÆcult task, which
Exploiting Correlated Keywords to Improve Approximate Information Filtering
Tryfonopoulos, Christos
, Christos Tryfonopoulos, and Gerhard Weikum Databases and Information Systems Department Max-Planck Institut- scribe to information sources and be notified whenever new documents of interest are published. In approximate infor- mation filtering only selected information sources, that are likely to publish documents
Approximating Radon measures on first--countable compact spaces
Plebanek, Grzegorz
Approximating Radon measures on first--countable compact spaces Grzegorz Plebanek (Wroc/law) Abstract The assertion every Radon measure defined on a first--countable compact space is uniformly regular under CH. In this note we consider some properties of finite Radon measures defined on compact spaces
Approximation in Mechanism Design By JASON D. HARTLINE
Hartline, Jason D.
Approximation in Mechanism Design By JASON D. HARTLINE A mechanism gives a mapping between will arise in the equilibrium of selfish agent play. Mechanism design then considers the optimization question of what mechanisms have good outcomes in equilibrium. Optimal mechanism design searches
Gluon Condensate in Pion Superfluid beyond Mean Field Approximation
Yin Jiang; Pengfei Zhuang
2011-03-04
We study gluon condensate in a pion superfluid, through calculating the equation of state of the system in the Nambu-Jona-Lasinio model. While in mean field approximation the growing pion condensate leads to an increasing gluon condensate, meson fluctuations reduce the gluon condensate and the broken scalar symmetry can be smoothly restored at finite isospin density.
Single-frequency approximation of the coupling ray theory
Cerveny, Vlastislav
. Introduction There are two different highfrequency asymptotic ray theories with frequencyindepen- dent) demonstrated analytically that the highfrequency asymptotic error of the In: Seismic Waves in Complex 3DSingle-frequency approximation of the coupling ray theory Ludek Klimes & Petr Bulant Department
Asymptotic Approximations to the Distributed Activation Energy Model
McGuinness, Mark
Asymptotic Approximations to the Distributed Activation Energy Model M.J.McGuinness1 , E. Donskoi2 by a continuum distribution in activation energy of individual re- actions. An individual reaction is characterised by a pre-exponential coefficient and an activation energy. The distribution, usually Gaussian
Continued fractions with low complexity: Transcendence measures and quadratic approximation
Bugeaud, Yann
expansion of an irrational algebraic number either is ultimately periodic (this is the case if, and only if. Theorems 3.2 and 3.3 give transcendence mea- sures for a class of transcendental numbers defined by theiContinued fractions with low complexity: Transcendence measures and quadratic approximation Yann
NUMERICAL APPROXIMATION OF A MACROSCOPIC MODEL OF PEDESTRIAN FLOWS
Chalons, Christophe
NUMERICAL APPROXIMATION OF A MACROSCOPIC MODEL OF PEDESTRIAN FLOWS CHRISTOPHE CHALONS Abstract for the description of the flow of pedestrians. Solutions of the associated Riemann problem are known to be possibly in obtaining an efficient numerical scheme. Numerical evidences are proposed. Key words. macroscopic pedestrian
NON-LINEAR FUNCTIONAL APPROXIMATION OF HETEROGENEOUS DYNAMICS
in a latent variable model designed to account for both switching multi-scaling regimes and cascade system or resolution levels. We aim to design ad hoc approximation instruments dealing with a particularly complex in improving the volatility feature detection power. Then we show the good performance of greedy approxima
CP-networks: semantics, complexity, approximations and extensions
Walsh, Toby
CP-networks: semantics, complexity, approximations and extensions F. Rossi, K. B. Venable Dept Constraint Computation Centre, University College Cork Cork, Ireland tw@4c.ucc.ie July 23, 2002 Abstract CP-networks are an elegant and compact qualitative framework for ex- pressing preferences. Unfortunately, reasoning with CP
Robust Nonparametric Data Approximation of Point Sets via Data Reduction
Durocher, Stephane
, and the cardinality of Q is minimized among all such maximizing subsets of P. Our algorithms have respective running), where k optimizes one or more functions of P, where approximations are used to render vector-based features such as streets, rivers, or coastlines
The Exemplar Breakpoint Distance for nontrivial genomes cannot be approximated
Fertin, Guillaume
The Exemplar Breakpoint Distance for nonÂtrivial genomes cannot be approximated Guillaume Blin 1 Â France guillaume.fertin@univÂnantes.fr Abstract. A promising and active field of comparative genomics conÂ sists in comparing two genomes by establishing a oneÂtoÂone corresponÂ dence (i.e., a matching) between
Approximate Dynamic Programming in Transportation and Logistics: A Unified Framework
Powell, Warren B.
Approximate Dynamic Programming in Transportation and Logistics: A Unified Framework Warren B Engineering Princeton University, Princeton, NJ 08544 European J. of Transportation and Logistics, Vol. 1, No optimization has enjoyed a rich place in transportation and logistics, where it repre- sents a mature field
EM Makes Progress on GAO High-Risk List
Broader source: Energy.gov [DOE]
WASHINGTON, D.C. – The U.S. Government Accountability Office (GAO) has removed EM capital asset projects of $750 million or less from its high-risk list because of the nuclear cleanup program’s progress in completing that work.
COLORADO STATE UNIVERSITY LISTING OF VARIOUS KFS CODES USED IN
Stephens, Graeme L.
COLORADO STATE UNIVERSITY KFS CODES LISTING OF VARIOUS KFS CODES USED IN INQUIRY SCREENS INDEX Item COMPENSATION CPTL CAPITAL FDBL FUND BALANCE GENX GENERAL EXPENSE IDEX INDIRECT COST RECOVERY EXPENSE LIAB Contracts OTRE CACO Capital Construction CPTL CAPO Equipment CPTL CASH Cash ASST CINP Construc in Process
EUP Title List 2010 -confirmed.xls Edinburgh University Press
Siddiqi, Sajjad Ahmed
EUP Title List 2010 - confirmed.xls Edinburgh University Press Publisher Item title Backfile Info Frequency Full Text Y/N ISSN URL Subject(s) Impact factor Edinburgh University Press Africa 2000-present 4 Y 1750-0184 http://www.eupjournals.com/loi/afr African Studies Edinburgh University Press Africa
ALPHABETICAL LISTING OF MEMBERS OF THE BOARD OF REGENTS
Minnesota, University of
Kellogg Davis 1874 - 1876 1883 - 1898 Anna O. Determan 1933 - 1935 Thomas W. Devine 2012 - Ronald S. Donaldson 1868 - 1871 Ignatius Donnelly 1860 - 1863 William B. Dosland 1979 - 1985 #12;ALPHABETICAL LISTING OF MEMBERS OF THE BOARD OF REGENTS June 8, 2015 Willis (Bill) K. Drake 1981 - 1987 Benjamin Du Bois 1937
Neural Networks ( ) Contents lists available at ScienceDirect
Bolton, McLean
Neural Networks ( ) Â Contents lists available at ScienceDirect Neural Networks journal homepage of an anatomically realistic neural network in rat vibrissal cortex Stefan Langa,b , Vincent J. Dercksenc , Bert electrical signals that propagate through anatomically realistic models of average neural networks
List of Local Participants 1. Mrinmoy DATTA, IIT Bombay.
Ghorpade, Sudhir
List of Local Participants 1. Mrinmoy DATTA, IIT Bombay. 2. Anuradha GARGE, University of Mumbai. 3. Shripad M. GARGE, IIT Bombay. 4. Sanjeevani GHARGE, Ruia College, Mumbai. 5. Sudhir R. GHORPADE, IIT Bombay. 12. R NARASIMHAN, D. J. Sanghvi College of Engg., Mumbai 13. Tushar PARULEKAR, IIT Bombay. 14
List of OTC Products (Items subject to change without notice)
Stuart, Steven J.
List of OTC Products (Items subject to change without notice) Allergy/Cough/Cold/Flu Symptoms * Requires Valid ID for purchase/18 yo Cough Drops Cherry 30ct Cold Eeze tablets 18ct Allergy Tablets 24ct Loratidine D* 10ct Comtrex Cold and Cough* Daytime* Softgels 12 & 20ct Nighttime* Softgels 12ct Banophen Tabs
Statistics Department Master List Ph.D. Dissertations
Wolfe, Patrick J.
Statistics Department Master List Ph.D. Dissertations Dissertation # Dissertation Date Author Name Dissertation Title Reader 1 Reader 2 Reader 3 1 June 1, 1959 GREENWOOD, Joseph Arthur Distribution Theory of Multi-factor Experiments Based on Prior Knowledge and Relatively Little Data Dempster Pratt 8 June 1
Ris Energy Report 6 References Reference list for Chapter 3
Risø Energy Report 6 References Reference list for Chapter 3 1. European Commission. (2007). Communication from the Commis- sion to the European Council and the European Parliament An energy policy of the Brussels European Council 8/9 March 2007. Brussels. (7224/1/07 Rev. 1). 3. Danish Energy authority. (2007
INFLOW AND THE FATIGUE OF THE LIST WIND TURBINE*
1 INFLOW AND THE FATIGUE OF THE LIST WIND TURBINE* Herbert J. Sutherland Wind Energy Technology response data to characterize the spectrum of loads on wind turbines. A heavily instrumented Micon 65/13M turbine with SERI 8m blades is being used as the primary test turbine for this test. This turbine
ENERGY EFFICIENT LIGHTING PRODUCTS TEST METHOD SELECTION LIST
ENERGY EFFICIENT LIGHTING PRODUCTS TEST METHOD SELECTION LIST NOTICE TO APPLICANTS FOR SOLID STATE of IES LM-79. ENERGY EFFICIENT LIGHTING PRODUCTS NOTICE (2015-02-05) i #12;DATE: __________________ NVLAP: _________________ _________________________________________________________________________________________________________________ NVLAP ENERGY EFFICIENT LIGHTING APPLICATION (REV. 2015-05-26) PAGE 1 OF 6 Test Method Designation Short
Export Controls "Top Ten" List Considerations for All University Employees
Massachusetts at Amherst, University of
Export Controls "Top Ten" List Considerations for All University Employees 1. Export control laws various aspects of export controls: · Department of Commerce for civilian and "dual-use" technologies sanctions. 3. There are two kinds of exports: · Physical shipments of technology and equipment to a foreign
AMSC/MATH 420 Sec. 0101 Project List 2
Maryland at College Park, University of
? If only young sheep are marketable, how will this affect your yearly sales? 2. In many situations data, the item found might be moved to the front of the list (this is a common strategy in the desk scenario). Or customers who turn around and go to another store also grows. How should the supermarket design the work
Rubloff, Gary W.
Laboratory Personnel Safety Check List Employee/Student Name_________________________________ Date in the laboratory? 2. _______ Has the PI/Lab Supervisor discussed all hazardous components of the research? a in the laboratory? 4. _______ Has the PI/Lab Supervisor discussed the need for the employee/student to inform health
Publications Received Books listed below that are marked with a
Publications Received Books listed below that are marked with a t have been selected for review in a future issue, and reviewers have been assigned to each. Authors and publishers who wish their publications to be considered for review in ComputationalLinguisticsshould send a copy to the book review
Publications Received Books listed below that are marked with a
Publications Received Books listed below that are marked with a t have been selected for review in a future issue, and reviewers have been assigned to each. Authors and publishers who wish their publications to be considered for review in ComputationalLinguistics should send a copy to the book review
Withdrawn FIPS Listed by Number Updated 10/22/12
Standards (FIPS) listed below have been withdrawn. Many of these FIPS had adopted voluntary industry standards for Federal government use, but had not been updated to adopt current or revised industry. It is no longer necessary for the government to mandate standards that duplicate industry standards. Federal
Automatic generation of stop word lists for information retrieval and analysis
Rose, Stuart J
2013-01-08
Methods and systems for automatically generating lists of stop words for information retrieval and analysis. Generation of the stop words can include providing a corpus of documents and a plurality of keywords. From the corpus of documents, a term list of all terms is constructed and both a keyword adjacency frequency and a keyword frequency are determined. If a ratio of the keyword adjacency frequency to the keyword frequency for a particular term on the term list is less than a predetermined value, then that term is excluded from the term list. The resulting term list is truncated based on predetermined criteria to form a stop word list.
Prediction of Solar Flare Size and Time-to-Flare Using Support Vector Machine Regression
Boucheron, Laura E; McAteer, R T James
2015-01-01
We study the prediction of solar flare size and time-to-flare using 38 features describing magnetic complexity of the photospheric magnetic field. This work uses support vector regression to formulate a mapping from the 38-dimensional feature space to a continuous-valued label vector representing flare size or time-to-flare. When we consider flaring regions only, we find an average error in estimating flare size of approximately half a \\emph{geostationary operational environmental satellite} (\\emph{GOES}) class. When we additionally consider non-flaring regions, we find an increased average error of approximately 3/4 a \\emph{GOES} class. We also consider thresholding the regressed flare size for the experiment containing both flaring and non-flaring regions and find a true positive rate of 0.69 and a true negative rate of 0.86 for flare prediction. The results for both of these size regression experiments are consistent across a wide range of predictive time windows, indicating that the magnetic complexity fe...
Benchmarking mean-field approximations to level densities
Y. Alhassid; G. F. Bertsch; C. N. Gilbreth; H. Nakada
2015-12-11
We assess the accuracy of finite-temperature mean-field theory using as a standard the Hamiltonian and model space of the shell model Monte Carlo calculations. Two examples are considered: the nucleus $^{162}$Dy, representing a heavy deformed nucleus, and $^{148}$Sm, representing a nearby heavy spherical nucleus with strong pairing correlations. The errors inherent in the finite-temperature Hartree-Fock and Hartree-Fock-Bogoliubov approximations are analyzed by comparing the entropies of the grand canonical and canonical ensembles, as well as the level density at the neutron resonance threshold, with shell model Monte Carlo (SMMC) calculations, which are accurate up to well-controlled statistical errors. The main weak points in the mean-field treatments are seen to be: (i) the extraction of number-projected densities from the grand canonical ensembles, and (ii) the symmetry breaking by deformation or by the pairing condensate. In the absence of a pairing condensate, we confirm that the usual saddle-point approximation to extract the number-projected densities is not a significant source of error compared to other errors inherent to the mean-field theory. We also present an alternative formulation of the saddle-point approximation that makes direct use of an approximate particle-number projection and avoids computing the usual three-dimensional Jacobian of the saddle-point integration. We find that the pairing condensate is less amenable to approximate particle-number projection methods due to the explicit violation of particle-number conservation in the pairing condensate. Nevertheless, the Hartree-Fock-Bogoliubov theory is accurate to less than one unit of entropy for $^{148}$Sm at the neutron threshold energy, which is above the pairing phase transition.
A unifying method for sizing throttling valves under laminar or transitional flow conditions
Baumann, H.D. (H.D. Baumann Assoc., Ltd., Portsmouth, NH (United States))
1993-03-01
The mass flow passing through a given valve will decrease in Reynolds number ranges below approximately 10,000 due to the transition from fully developed turbulent to laminar flow. The objective of this study is to provide a uniform prediction method to establish, with reasonable accuracy, the ratio between the turbulent and transitional or laminar flow rate passing through a given valve, taking into account the valve's hydraulic diameter and the initial turbulent velocity head loss coefficient. Experimental data from prior research tends to support a proposed unified sizing method that is applicable for all single-stage valves regardless of size or type.
Size of nanoobjects in oil and gas species and materials with positron annihilation spectroscopy
Grafutin, V I; Elnikova, L V
2012-01-01
The analytical method to determine geometry and size of nano-scale defects in oil and gas species and materials is proposed. The modeling is carried out with the parameters of the positron spectra in the angular distribution method of positron annihilation spectroscopy, and is based on the 'free electron' approximation. From the annihilation decay kinetics, it is possible to express the trapping velocity of parapositronium in pores via intensities of the positronium components and to define the concentration and radii of pores in a porous layer. As the result, size and the concentration of micro-porous cylindrical nano-objects in the silicon samples are estimated.
Oil and Gas field code master list 1995
1995-12-01
This is the fourteenth annual edition of the Energy Information Administration`s (EIA) Oil and Gas Field Code Master List. It reflects data collected through October 1995 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the US. The Field Code Index, a listing of all field names and the States in which they occur, ordered by field code, has been removed from this year`s publications to reduce printing and postage costs. Complete copies (including the Field Code Index) will be available on the EIA CD-ROM and the EIA World-Wide Web Site. Future editions of the complete Master List will be available on CD-ROM and other electronic media. There are 57,400 field records in this year`s Oil and Gas Field Code Master List. As it is maintained by EIA, the Master List includes the following: field records for each State and county in which a field resides; field records for each offshore area block in the Gulf of Mexico in which a field resides; field records for each alias field name (see definition of alias below); and fields crossing State boundaries that may be assigned different names by the respective State naming authorities. Taking into consideration the double-counting of fields under such circumstances, EIA identifies 46,312 distinct fields in the US as of October 1995. This count includes fields that no longer produce oil or gas, and 383 fields used in whole or in part for oil or gas Storage. 11 figs., 6 tabs.
Squibs and Discussions Pipelines and Size Constraints
Squibs and Discussions Pipelines and Size Constraints Ehud Reiter* University of Aberdeen Some. This can be a difficult constraint to enforce in a pipelined natural language generation (NLG) system of the pipeline, but size cannot be accurately measured until the document has been completely processed
A solution to the inherent list on Nimitz class aircraft carriers
Wolfson, Dianna
2004-01-01
Nimitz class aircraft carriers possess an inherent list to starboard that their list control systems (LCS) are typically unable to correct while under Combat Load Conditions. As a result, it has become necessary to use ...
2014 SunShot Summit Awardee Poster List | Department of Energy
Office of Environmental Management (EM)
2014 SunShot Summit Awardee Poster List 2014 SunShot Summit Awardee Poster List Download an Excel spreadsheet of the names and locations of all SunShot awardee posters in the...
Participant List for the 2010-2025 Scenario Analysis for Hydrogen...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Participant List for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting on January 31, 2007 Participant List for the 2010-2025 Scenario...
Energy Efficiency Can Be at the Top of Your Shopping List | Department...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Energy Efficiency Can Be at the Top of Your Shopping List Energy Efficiency Can Be at the Top of Your Shopping List November 30, 2009 - 3:30pm Addthis Eric Barendsen Energy...
Attendees list from the U.S. Department of Energy's High Throughput...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Attendees list from the U.S. Department of Energy's High Throughput Screening of Hydrogen Storage Materials Workshop on June 26, 2007 Attendees list from the U.S. Department of...
On the Peterlin approximation for turbulent flows of polymer solutions
Vincenzi, Dario; Biferale, Luca; Toschi, Federico
2015-01-01
We study the impact of the Peterlin approximation on the statistics of the end-to-end separation of poly- mers in a turbulent flow. The FENE and FENE-P models are numerically integrated along a large number of Lagrangian trajectories resulting from a direct numerical simulation of three-dimensional homogeneous isotropic turbulence. Although the FENE-P model yields results in qualitative agreement with those of the FENE model, quantitative differences emerge. The steady-state probability of large extensions is overesti- mated by the FENE-P model. The alignment of polymers with the eigenvectors of the rate-of-strain tensor and with the direction of vorticity is weaker when the Peterlin approximation is used. At large Weissenberg numbers, both the correlation times of the extension and of the orientation of polymers are underestimated by the FENE-P model.
Axially symmetric dissipative fluids in the quasi--static approximation
Herrera, L; Ospino, J; Carot, J
2015-01-01
Using a framework based on the $1+3$ formalism we carry out a study on axially and reflection symmetric dissipative fluids, in the quasi--static regime. We first derive a set of invariantly defined "velocities", which allow for an inambiguous definition of the quasi--static approximation. Next we rewrite all the relevant equations in this aproximation and extract all the possible, physically relevant, consequences ensuing the adoption of such an approximation. In particular we show how the vorticity, the shear and the dissipative flux, may lead to situations where different kind of "velocities" change of sign within the fluid distribution with respect to theirs sign on the boundary surface. It is shown that states of gravitational radiation are not {\\it a priori} incompatible with the quasistatic--regime. However, any such state must last for an infinite period of time, thereby diminishing its physical relevance.
Quasielastic electron-deuteron scattering in the weak binding approximation
Ethier, Jacob J. [William and Mary College, JLAB; Doshi, Nidhi P. [Carnegie Mellon University; Malace, Simona P. [JLAB; Melnitchouk, Wally [JLAB
2014-06-01
We perform a global analysis of all available electron-deuteron quasielastic scattering data using Q^2-dependent smearing functions that describe inclusive inelastic e-d scattering within the weak binding approximation. We study the dependence of the cross sections on the deuteron wave function and the off-shell extrapolation of the elastic electron-nucleon cross section, which show particular sensitivity at x >> 1. The excellent overall agreement with data over a large range of Q^2 and x suggest a limited need for effects beyond the impulse approximation, with the exception of the very high-x or very low-Q^2 regions, where short-distance effects in the deuteron become more relevant.
Feedback stabilisation of switched systems via iterative approximate eigenvector assignment
Haimovich, Hernan
2010-01-01
This paper presents and implements an iterative feedback design algorithm for stabilisation of discrete-time switched systems under arbitrary switching regimes. The algorithm seeks state feedback gains so that the closed-loop switching system admits a common quadratic Lyapunov function (CQLF) and hence is uniformly globally exponentially stable. Although the feedback design problem considered can be solved directly via linear matrix inequalities (LMIs), direct application of LMIs for feedback design does not provide information on closed-loop system structure. In contrast, the feedback matrices computed by the proposed algorithm assign closed-loop structure approximating that required to satisfy Lie-algebraic conditions that guarantee existence of a CQLF. The main contribution of the paper is to provide, for single-input systems, a numerical implementation of the algorithm based on iterative approximate common eigenvector assignment, and to establish cases where such algorithm is guaranteed to succeed. We inc...
On the Peterlin approximation for turbulent flows of polymer solutions
Dario Vincenzi; Prasad Perlekar; Luca Biferale; Federico Toschi
2015-05-26
We study the impact of the Peterlin approximation on the statistics of the end-to-end separation of poly- mers in a turbulent flow. The FENE and FENE-P models are numerically integrated along a large number of Lagrangian trajectories resulting from a direct numerical simulation of three-dimensional homogeneous isotropic turbulence. Although the FENE-P model yields results in qualitative agreement with those of the FENE model, quantitative differences emerge. The steady-state probability of large extensions is overesti- mated by the FENE-P model. The alignment of polymers with the eigenvectors of the rate-of-strain tensor and with the direction of vorticity is weaker when the Peterlin approximation is used. At large Weissenberg numbers, both the correlation times of the extension and of the orientation of polymers are underestimated by the FENE-P model.
Crystallization of polyethylene by modified weighted density approximation(MWDA)
Razeghizadeh, Alireza; Lavafpour, Farhad
2015-01-01
In this article, we use the modified weighted density approximation to study the crystallization of polyethylene. We also use a direct correlation function of polyethylene based on RISM theory. The free energy of a polyethylene is calculated using density functional theory. The crystallization and solid and liquid density are calculated and finally compared with the prism simulation and experimental results. That shown the result obtained by MWDA is in better agreement, compared with the experimental result than the prism.
Crystallization of polyethylene by modified weighted density approximation(MWDA)
Alireza Razeghizadeh; Vahdat Rafee; Farhad Lavafpour
2015-02-07
In this article, we use the modified weighted density approximation to study the crystallization of polyethylene. We also use a direct correlation function of polyethylene based on RISM theory. The free energy of a polyethylene is calculated using density functional theory. The crystallization and solid and liquid density are calculated and finally compared with the prism simulation and experimental results. That shown the result obtained by MWDA is in better agreement, compared with the experimental result than the prism.
Product-state Approximations to Quantum Ground States
Fernando G. S. L. Brandão; Aram W. Harrow
2014-12-15
The local Hamiltonian problem consists of estimating the ground-state energy (given by the minimum eigenvalue) of a local quantum Hamiltonian. First, we show the existence of a good product-state approximation for the ground-state energy of 2-local Hamiltonians with one or more of the following properties: (1) high degree, (2) small expansion, or (3) a ground state with sublinear entanglement with respect to some partition into small pieces. The approximation based on degree is a surprising difference between quantum Hamiltonians and classical CSPs (constraint satisfaction problems), since in the classical setting, higher degree is usually associated with harder CSPs. The approximation based on low entanglement, in turn, was previously known only in the regime where the entanglement was close to zero. Since the existence of a low-energy product state can be checked in NP, the result implies that any Hamiltonian used for a quantum PCP theorem should have: (1) constant degree, (2) constant expansion, (3) a "volume law" for entanglement with respect to any partition into small parts. Second, we show that in several cases, good product-state approximations not only exist, but can be found in polynomial time: (1) 2-local Hamiltonians on any planar graph, solving an open problem of Bansal, Bravyi, and Terhal, (2) dense k-local Hamiltonians for any constant k, solving an open problem of Gharibian and Kempe, and (3) 2-local Hamiltonians on graphs with low threshold rank, via a quantum generalization of a recent result of Barak, Raghavendra and Steurer. Our work introduces two new tools which may be of independent interest. First, we prove a new quantum version of the de Finetti theorem which does not require the usual assumption of symmetry. Second, we describe a way to analyze the application of the Lasserre/Parrilo SDP hierarchy to local quantum Hamiltonians.
Denoising MR Spectroscopic Imaging Data with Low-Rank Approximations
Do, Minh N.
1 Denoising MR Spectroscopic Imaging Data with Low-Rank Approximations Hien M. Nguyen, Member, IEEE- temporal imaging data as well. Index Terms--MR spectroscopy, MR spectroscopic imaging, denoising, low spectroscopic (MRS) signal in (k, t)-space can be expressed as s(k, t) = (r, f)e-i2k·r e-i2ft drdf + (k, t), (1
COMPLEXITY & APPROXIMABILITY OF QUANTIFIED & STOCHASTIC CONSTRAINT SATISFACTION PROBLEMS
H. B. HUNT; M. V. MARATHE; R. E. STEARNS
2001-06-01
Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S and T be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SATc(S).) Here, we study simultaneously the complexity of decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. We present simple yet general techniques to characterize simultaneously, the complexity or efficient approximability of a number of versions/variants of the problems SAT(S), Q-SAT(S), S-SAT(S),MAX-Q-SAT(S) etc., for many different such D,C,S,T. These versions/variants include decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. Our unified approach is based on the following two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic representability. Some of the results extend the earlier results in [Pa85,LMP99,CF+93,CF+94] Our techniques and results reported here also provide significant steps towards obtaining dichotomy theorems, for a number of the problems above, including the problems MAX-Q-SAT(S), and MAX-S-SAT(S). The discovery of such dichotomy theorems, for unquantified formulas, has received significant recent attention in the literature [CF+93, CF+94, Cr95, KSW97]. Keywords: NP-hardness; Approximation Algorithms; PSPACE-hardness; Quantified and Stochastic Constraint Satisfaction Problems.
Global Nuclear Energy Partnership Triples in Size to 16 Members...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
and Attendees List GNEP Operating Documents Signed SOP Media contact(s): Megan Barnett, (202) 586-4940 Addthis Related Articles Secretary Bodman Addresses IAEA General...
The Vainshtein mechanism beyond the quasi-static approximation
Hans A. Winther; Pedro G. Ferreira
2015-05-13
Theories of modified gravity, in both the linear and fully non-linear regime, are often studied under the assumption that the evolution of the new (often scalar) degree of freedom present in the theory is quasi-static. This approximation significantly simplifies the study of the theory, and one often has good reason to believe that it should hold. Nevertheless it is a crucial assumption that should be explicitly checked whenever possible. In this paper we do so for the Vainshtein mechanism. By solving for the full spatial and time evolution of the Dvali-Gabadadze-Porrati and the Cubic Galileon model, in a spherical symmetric spacetime, we are able to demonstrate that the Vainshtein solution is a stable attractor and forms no matter what initial conditions we take for the scalar field. Furthermore,the quasi-static approximation is also found to be a very good approximation whenever it exists. For the best-fit Cubic Galileon model, however, we find that for deep voids at late times, the numerical solution blows up at the same time as the quasi-static solution ceases to exist. We argue that this phenomenon is a true instability of the model.
Generalized random phase approximation of soft-matter systems
Derek Frydel
2015-07-30
A general RPA approximation is developed within the liquid-state formalism as a systematic first step beyond the mean-field and toward a more realistic description of the weak-coupling regime. The resulting RPA is self-consistent and, in principle, valid for arbitrary particle interactions. RPA is introduced into the liquid-state framework via adiabatic connection -- by adiabatically switching on the particle interactions while keeping the particle density fixed at its physical value by means of an auxiliary external potential. Correlational free energy Fc involves a coupling-strength integral $\\int_0^1d{\\lambda}\\,h_{\\lambda}({\\bf r},{\\bf r}')$, where a correlation function of a fictitious system, $h_{\\lambda}({\\bf r},{\\bf r}')$, is obtained from the Ornstein-Zernike equation and an appropriate closure relation. The closure $c_{\\lambda}({\\bf r},{\\bf r}')=-\\beta\\lambda u({\\bf r},{\\bf r}')$ yields the RPA approximation. The coupling constant integral within Fc can alternatively be expressed as a summation of ring diagrams to infinite order, a known feature of RPA. The ring series can, in turn, be linked to a functional determinant known to be a solution of a Gaussian integral, therefore, connecting the RPA to the Gaussian type of an approximation.
The periodic standing-wave approximation: post-Minkowski computation
Christopher Beetle; Benjamin Bromley; Napoleón Hernández; Richard H. Price
2007-08-08
The periodic standing wave method studies circular orbits of compact objects coupled to helically symmetric standing wave gravitational fields. From this solution an approximation is extracted for the strong field, slowly inspiralling motion of black holes and binary stars. Previous work on this model has dealt with nonlinear scalar models, and with linearized general relativity. Here we present the results of the method for the post-Minkowski (PM) approximation to general relativity, the first step beyond linearized gravity. We compute the PM approximation in two ways: first, via the standard approach of computing linearized gravitational fields and constructing from them quadratic driving sources for second-order fields, and second, by solving the second-order equations as an ``exact'' nonlinear system. The results of these computations have two distinct applications: (i) The computational infrastructure for the ``exact'' PM solution will be directly applicable to full general relativity. (ii) The results will allow us to begin supplying initial data to collaborators running general relativistic evolution codes.
Heidrich-Meisner, Fabian; Martins, G. B.; Al Hassanieh, Khaled A; Feiguin, A. E.; Dagotto, Elbio R
2008-01-01
The study of interacting nanostructures such as quantum dots is a playground for several novel numerical approaches. Recently developed methods such as the time-dependent density matrix renormalization approach or the embedded-cluster approximation rely on the numerical solution of clusters of finite-size. For the interpretation of numerical results, it is important to understand finite-size and boundary effects. Here, we study spin fluctuations and spin spin correlations of two dots coupled in a T-shape geometry. Depending on odd even effects, quite different results emerge from clusters that do not differ much in size. r 2007 Elsevier B.V. All rights reserved.
Conglomeration of kilometre-sized planetesimals
Shannon, Andrew; Wu, Yanqin; Lithwick, Yoram
2015-02-25
out of ? 104M? of primordial solids. The total disk mass, if supplemented with the missing hydro- gen gas, would then reach of order a solar mass. This is very surprising and, in our view, invalidates the low-efficiency conglomeration model. Moreover... . This corresponds to a dis- ruption velocity of v ? 100 cm/ s, or e ? 10?3 at 40 AU. When bodies of size s1 are catastrophically disrupted, we re-distribute their masses to smaller size bins with a number distribution that is power-law in size, dn/ds ? sq? for s < s...
Finite size scaling analysis of compact QED
G. Arnold; Th. Lippert; Th. Neuhaus; K. Schilling
2000-11-13
We describe results of a high-statistics finite size scaling analysis of 4d compact U(1) lattice gauge theory with Wilson action at the phase transition point. Using a multicanonical hybrid Monte Carlo algorithm we generate data samples with more than 150 tunneling events between the metastable states of the system, on lattice sizes up to 18^4. We performed a first analysis within the Borgs-Kotecky finite size scaling scheme. As a result, we report evidence for a first-order phase transition with a plaquette energy gap, G=0.02667(20), at a transition coupling, beta_T=1.011128(11).
Chang, Hsueh-Chia
'' approximation is permissible for the acous- tic wave equation to yield a quasistatic analysis of the acousticSelf-Similar Micron-Size and Nanosize Drops of Liquid Generated by Surface Acoustic Waves Daniel 46556, USA (Received 13 September 2012; published 27 November 2012) A planar surface acoustic wave
CUNY EXPORT CONTROL PROCEDURES 6. End User Screening Against U.S. Government Watch Lists
Rosen, Jay
CUNY EXPORT CONTROL PROCEDURES 6. End User Screening Against U.S. Government Watch Lists This Section addresses required screening of export recipients and certain collaborative research partners of State, Treasury, and Commerce separately maintain published lists of known export violators. These lists
DOE technical standards list: Department of Energy standards index
1999-05-01
This Department of Energy (DOE) technical standards list (TSL) has been prepared by the Office of Nuclear Safety Policy and Standards (EH-31) on the basis of currently available technical information. Periodic updates of this TSL will be issued as additional information is received on standardization documents being issued, adopted, or canceled by DOE. This document was prepared for use by personnel involved in the selection and use of DOE technical standards and other Government and non-Government standards. This TSL provides listings of current DOE technical standards, non-Government standards that have been adopted by DOE, other standards-related documents in which DOE has a recorded interest, and canceled DOE technical standards. Information on new DOE technical standards projects, technical standards released for coordination, recently published DOE technical standards, and activities of non-Government standards bodies that may be of interest to DOE is published monthly in Standards Actions.
Geothermal publications list for Geopowering the West States
2004-12-01
A list of geothermal publications is provided for each of the states under the ''GeoPowering the West'' program. They are provided to assist the various states in developing their geothermal resources for direct-use and electric power applications. Each state publication list includes the following: (1) General papers on various direct-uses and electric power generation available from the Geo-Heat Center either by mail or on-line at: http://geoheat.oit.edu. (2) General Geo-Heat Center Quarterly Bulletin articles related to various geothermal uses--also available either by mail or on-line; (3) Publications from other web sites such as: Geothermal-Biz.com; NREL, EGI, GEO and others ; and (4) Geothermal Resources Council citations, which are available from their web site: www.geothermal.org.
Lubrication approximation for thin viscous films: asymptotic behavior of nonnegative solutions
Tudorascu, Adrian
Lubrication approximation for thin viscous films: asymptotic behavior of nonnegative solutions-order nonlinear de- generate parabolic equations of lubrication approximation for thin viscous film type. The weak
Particle Size Distribution of Gypseous Samples
Arnett, Morgan P.
2010-01-16
Particle size distribution (PSD) of gypseous soils is important in the soil science community. When gypsum constitutes a major portion of the soil, its removal prior to PSD analysis distorts the results and may lead to ...
Control of gene expression by cell size
Wu, Chia-Yung
2010-01-01
Polyploidy, increased copy number of whole chromosome sets in the genome, is a common cellular state in evolution, development and disease. Polyploidy enlarges cell size and alters gene expression, producing novel phenotypes ...
Software Productivity Measurement Using Multiple Size Measures
Bae, Doo-Hwan
Software Productivity Measurement Using Multiple Size Measures Software Productivity MeasurementContents Introduction Background Related work Motivation Productivity measurement - Measurement model - Productivity measure construction - Productivity analysis Conclusion Discussion #12;Software Engineering Lab, KAIST 3
Continuous Nanoparticle Sizing and Characterization via Microfluidics
Meng, Fanxu
2015-04-27
conductivity measurements can be exploited to instantaneously obtain size and species information in oxide nanoparticle suspensions. This approach is readily implemented in an easy to build platform that can be employed either online to provide real...
Angular Size in a Static Universe
David F. Crawford
1994-07-11
In principle the geometry of the universe can be investigated by measuring the angular size of known objects as a function of distance. Thus the distribution of angular sizes provides a critical test of the stable and static model of the universe described by Crawford (1991,1993) that has a simple and explicit relationship between the angular size of an object and its redshift. The result is that the agreement with observations of galactic diameters and the size of double radio sources with the static model is much better than the standard (Big Bang) theory without evolution. However there is still a small discrepancy at large redshifts that could be due to selection effects.
Antiferromagnetic domain size and exchange bias
Fitzsimmons, M. R.; Lederman, D.; Cheon, M.; Shi, H.; Olamit, J.; Roshchin, Igor V.; Schuller, Ivan K.
2008-01-01
Using neutron diffraction, we measured the sizes of antiferromagnetic domains in three ferromagnet/antiferromagnet bilayer samples as a function of the magnitude and sign of exchange bias, temperature, and antiferromagnet composition. Neutron...
Event Attendee List (Knoxville July 2012) | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015 InfographiclighbulbsDepartmentDeveloping new|Event Attendee List
Listing of Defense Nuclear Facilities | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties - WAPA PublicLED ADOPTIONtoLightingEnergyEnergy Listing
COMPLEXITY&APPROXIMABILITY OF QUANTIFIED&STOCHASTIC CONSTRAINT SATISFACTION PROBLEMS
Hunt, H. B.; Marathe, M. V.; Stearns, R. E.
2001-01-01
Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S and T be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SATc(S).) Here, we study simultaneously the complexity of decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. We present simple yet general techniques to characterize simultaneously, the complexity or efficient approximability of a number of versions/variants of the problems SAT(S), Q-SAT(S), S-SAT(S),MAX-Q-SAT(S) etc., for many different such D,C ,S, T. These versions/variants include decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. Our unified approach is based on the following two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic represent ability. Some of the results extend the earlier results in [Pa85,LMP99,CF+93,CF+94O]u r techniques and results reported here also provide significant steps towards obtaining dichotomy theorems, for a number of the problems above, including the problems MAX-&-SAT( S), and MAX-S-SAT(S). The discovery of such dichotomy theorems, for unquantified formulas, has received significant recent attention in the literature [CF+93,CF+94,Cr95,KSW97
Investigations of initiation spot size effects
Clarke, Steven A; Akinci, Adrian A; Leichty, Gary; Schaffer, Timothy; Murphy, Michael J; Munger, Alan; Thomas, Keith A
2010-01-01
As explosive components become smaller, a greater understanding of the effect of initiation spot size on detonation becomes increasingly critical. A series of tests of the effect of initiation spot size will be described. A series of DOI (direct optical initiation) detonators with initiation spots sizes from {approx}50 um to 1000um have been tested to determine laser parameters for threshold firing of low density PETN pressings. Results will be compared with theoretical predictions. Outputs of the initiation source (DOI ablation) have been characterized by a suite of diagnostics including PDV and schlieren imaging. Outputs of complete detonators have been characterized using PDV, streak, and/or schlieren imaging. At present, we have not found the expected change in the threshold energy to spot size relationship for DOI type detonators found in similar earlier for projectiles, slappers and EBWs. New detonators designs (Type C) are currently being tested that will allow the determination of the threshold for spot sizes from 250 um to 105um, where we hope to see change in the threshold vs. spot size relationship. Also, one test of an extremely small diameter spot size (50um) has resulted in preliminary NoGo only results even at energy densities as much as 8 times the energy density of the threshold results presented here. This gives preliminary evidence that 50um spot may be beyond the critical initiation diameter. The constant threshold energy to spot size relationship in the data to date does however still give some insight into the initiation mechanism of DOI detonators. If the DOI initiation mechanism were a 1D mechanism similar to a slapper or a flyer impact, the expected inflection point in the graph would have been between 300um and 500um diameter spot size, within the range of the data presented here. The lack of that inflection point indicates that the DOI initiation mechanism is more likely a 2D mechanism similar to a sphere or rod projectile. We expect to see a three region response as the results from the smaller spot size Type C detonators are completed.
Nonlocal effective medium approximation for metallic nanorod metamaterials
Geng, Tao; Gao, Jie; Yang, Xiaodong
2015-01-01
We present an analytical nonlocal effective medium approximation to describe the optical nonlocal effects in metallic nanorod metamaterials based on Mie scattering theory. It is shown that the developed nonlocal effective medium theory can predict a coexistence state of two modes around the epsilon-near-zero region, where strong optical nonlocal effects lead to the behavior of both positive refraction and negative refraction in the nanorod metamaterials. Outside of the coexistence region, only one mode can be excited and its behavior can be well described using the local effective medium theory.
Invariant-based pulse engineering without rotating wave approximation
S. Ibáñez; Yi-Chao Li; Xi Chen; J. G. Muga
2015-07-02
We inverse engineer realizable time-dependent semiclassical pulses to invert or manipulate a two- level system faster than adiabatically when the rotating-wave approximation cannot be applied. Different inversion routes, based on a counterdiabatic approach or invariants, lead quite generally to singular fields. Making use of the relation between the invariants of motion and the Hamiltonian, and canceling the troublesome singularities, an inversion scheme is put forward for the regime in which the pulse spans few oscillations. For many oscillations an alternative numerical minimization method is proposed and demonstrated.
Analytical Approximation for 2-D Nonlinear Periodic Deep Water Waves
Saleh Tanveer
2013-09-20
A recently developed method has been extended to a nonlocal equation arising in steady water wave propagation in two dimensions. We obtain analyic approximation of steady water wave solution in two dimensions with rigorous error bounds for a set of parameter values that correspond to heights slightly smaller than the critical. The wave shapes are shown to be analytic. The method presented in quite general and does not assume smallness of wave height or steepness and can be readily extended to other interfacial problems involving Laplace's equation.
Breakdown of the Dipole Approximation in Strong-Field Ionization
A. Ludwig; J. Maurer; B. W. Mayer; C. R. Phillips; L. Gallmann; U. Keller
2014-10-02
We report the breakdown of the electric dipole approximation in the long-wavelength limit in strong-field ionization with linearly polarized few-cycle mid-infrared laser pulses at intensities on the order of 10$^{13}$ W/cm$^2$. Photoelectron momentum distributions were recorded by velocity map imaging and projected onto the beam propagation axis. We observe an increasing shift of the peak of this projection opposite to the beam propagation direction with increasing laser intensities. From a comparison with semi-classical simulations, we identify the combined action of the magnetic field of the laser pulse and the Coulomb potential as origin of our observations.
Compton scattering from positronium and validity of the impulse approximation
Kaliman, Z.; Pisk, K.; Pratt, R. H.
2011-05-15
The cross sections for Compton scattering from positronium are calculated in the range from 1 to 100 keV incident photon energy. The calculations are based on the A{sup 2} term of the photon-electron or photon-positron interaction. Unlike in hydrogen, the scattering occurs from two centers and the interference effect plays an important role for energies below 8 keV. Because of the interference, the criterion for validity of the impulse approximation for positronium is more restrictive compared to that for hydrogen.
Prinz, Friedrich B.
Bleecker: WC Reporting Check List Risk Management 6/28/2012 Initial Injury/Illness Reporting Check://www.stanford.edu/dept/EHS/prod/general/su17.pdf Within 24 HRS Worker & Supervisor Fax to 650-723-9456 Original to Mail Code 6207 DWC 1 http://www.stanford.edu/dept/Risk-Management-723-9456 Original to Mail Code 6207 5020 (must be typed "PCWord version" available in link below) http://www.stanford.edu/dept/Risk-Management
Neutrons measure phase behavior in pores at Angstrom size
Bardoel, Agatha A; Melnichenko, Yuri B
2012-01-01
Researchers have measured the phase behavior of green house gases in pores at the Angstrom-level, using small angle neutron scattering (SANS) at the Oak Ridge National Laboratory's High Flux Isotope Reactor. Yuri Melnichenko, an instrument scientist on the General Purpose Small Angle Neutron Scattering (GP SANS) Diffractometer at ORNL's High Flux Isotope Reactor, his postdoctoral associate Lilin He and collaborators Nidia Gallego and Cristian Contescu from the Material Sciences Division (ORNL) were engaged in the work. They were studying nanoporous carbons to assess their attractiveness as storage media for hydrogen, with a view to potential use for on-board hydrogen storage for transportation applications. Nanoporous carbons can also serve as electrode material for supercapacitors and batteries. The researchers successfully determined that the most efficiently condensing pore size in a carbon nanoporous material for hydrogen storage is less than one nanometer. In a paper recently published by the Journal of the American Chemical Society, the collaborators used small angle neutron scattering to study how hydrogen condenses in small pores at ambient temperature. They discovered that the surface-molecule interactions create internal pressures in pores that may exceed the external gas pressure by a factor of up to 50. 'This is an exciting result,' Melnichenko said, 'as you achieve extreme densification in pores 'for free', i.e. without spending any energy. These results can be used to guide the development of new carbon adsorbents tailored to maximize hydrogen storage capacities.' Another important factor that defines the adsorption capacity of sub-nanometer pores is their shape. In order to get accurate structural information and maximize sorption capacity, it is important that pores are small and of approximately uniform size. In collaboration with Drexel University's Yury Gogotsi who supplied the samples, Melnichenko and his collaborators used the GP SANS instrument to study how the size and shape of pores in sub-nanometer porous carbons varies, depending on the manufacturing conditions. While small angle X-ray scattering (SAXS) can do the job too, Melnichenko says, the SANS method broke new ground in analyzing the shape and behavior of pores at subnanometer size, when subjected to varying synthesis temperature. 'We found that these very small pores are in fact spherical, and that when we change the synthesis conditions, they become elongated, even 'slit-like', and all of this on a subnanometer scale,' Melnichenko said.
Approximation Algorithms for Wireless Link Scheduling with Flexible Data Rates
Kesselheim, Thomas
2012-01-01
We consider scheduling problems in wireless networks with respect to flexible data rates. That is, more or less data can be transmitted per time depending on the signal quality, which is determined by the signal-to-interference-plus-noise ratio (SINR). Each wireless link has a utility function mapping SINR values to the respective data rates. We have to decide which transmissions are performed simultaneously and (depending on the problem variant) also which transmission powers are used. In the capacity-maximization problem, one strives to maximize the overall network throughput, i.e., the summed utility of all links. For arbitrary utility functions (not necessarily continuous ones), we present an O(log n)-approximation when having n communication requests. This algorithm is built on a constant-factor approximation for the special case of the respective problem where utility functions only consist of a single step. In other words, each link has an individual threshold and we aim at maximizing the number of lin...
Communication: Random phase approximation renormalized many-body perturbation theory
Bates, Jefferson E.; Furche, Filipp, E-mail: filipp.furche@uci.edu [Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025 (United States)] [Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025 (United States)
2013-11-07
We derive a renormalized many-body perturbation theory (MBPT) starting from the random phase approximation (RPA). This RPA-renormalized perturbation theory extends the scope of single-reference MBPT methods to small-gap systems without significantly increasing the computational cost. The leading correction to RPA, termed the approximate exchange kernel (AXK), substantially improves upon RPA atomization energies and ionization potentials without affecting other properties such as barrier heights where RPA is already accurate. Thus, AXK is more balanced than second-order screened exchange [A. Grüneis et al., J. Chem. Phys. 131, 154115 (2009)], which tends to overcorrect RPA for systems with stronger static correlation. Similarly, AXK avoids the divergence of second-order Møller-Plesset (MP2) theory for small gap systems and delivers a much more consistent performance than MP2 across the periodic table at comparable cost. RPA+AXK thus is an accurate, non-empirical, and robust tool to assess and improve semi-local density functional theory for a wide range of systems previously inaccessible to first-principles electronic structure calculations.
On Absence and Existence of the Anomalous Localized Resonance without the Quasi-static Approximation
Henrik Kettunen; Matti Lassas; Petri Ola
2015-04-14
The paper considers the transmission problems for Helmholtz equation with bodies that have negative material parameters. Such material parameters are used to model metals on optical frequencies and so-called metamaterials. As the absorption of the materials in the model tends to zero the fields may blow up. When the speed of the blow up is suitable, this is called the Anomalous Localized Reconance (ALR). In this paper we study this phenomenon and formulate a new condition, the weak Anomalous Localized Reconance (w-ALR), where the speed of the blow up of fields may be slower. Using this concept, we can study the blow up of fields in the presence of negative material parameters without the commonly used quasi-static approximation. We give simple geometric conditions under which w-ALR or ALR may, or may not appear. In particular, we show that in a case of a curved layer of negative material with a strictly convex boundary neither ALR nor w-ALR appears with non-zero frequencies (i.e. in the dynamic range) in dimensions $d\\ge 3$. In the case when the boundary of the negative material contains a flat subset we show that the w-ALR always happens with some point sources in dimensions $d\\ge 2$. These results, together with the earlier results of Milton et al. ( [22, 23]) and Ammari et al. ([2]) show that for strictly convex bodies ALR may appear only for bodies so small that the quasi-static approximation is realistic. This gives limits for size of the objects for which invisibility cloaking methods based on ALR may be used.
Takahiko Matsubara; Ayako Yoshisato; Masahiro Morikawa
1997-08-17
Among several analytic approximations for the growth of density fluctuations in the expanding Universe, Zel'dovich approximation in Lagrangian coordinate scheme is known to be unusually accurate even in mildly non-linear regime. This approximation is very similar to the Pad\\'e approximation in appearance. We first establish, however, that these two are actually different and independent approximations with each other by using a model of spheroidal mass collapse. Then we propose Pad\\'e-prescribed Zel'dovich-type approximations and demonstrate, within this model, that they are much accurate than any other known nonlinear approximations.
Finite size scaling for quantum criticality using the finite-element method
Edwin Antillon; Birgit Wehefritz-Kaufmann; Sabre Kais
2012-03-08
Finite size scaling for the Schr\\"{o}dinger equation is a systematic approach to calculate the quantum critical parameters for a given Hamiltonian. This approach has been shown to give very accurate results for critical parameters by using a systematic expansion with global basis-type functions. Recently, the finite element method was shown to be a powerful numerical method for ab initio electronic structure calculations with a variable real-space resolution. In this work, we demonstrate how to obtain quantum critical parameters by combining the finite element method (FEM) with finite size scaling (FSS) using different ab initio approximations and exact formulations. The critical parameters could be atomic nuclear charges, internuclear distances, electron density, disorder, lattice structure, and external fields for stability of atomic, molecular systems and quantum phase transitions of extended systems. To illustrate the effectiveness of this approach we provide detailed calculations of applying FEM to approximate solutions for the two-electron atom with varying nuclear charge; these include Hartree-Fock, density functional theory under the local density approximation, and an "exact"' formulation using FEM. We then use the FSS approach to determine its critical nuclear charge for stability; here, the size of the system is related to the number of elements used in the calculations. Results prove to be in good agreement with previous Slater-basis set calculations and demonstrate that it is possible to combine finite size scaling with the finite-element method by using ab initio calculations to obtain quantum critical parameters. The combined approach provides a promising first-principles approach to describe quantum phase transitions for materials and extended systems.
Downs, Robert T.
1 Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals at http://rruff.info/IMA. 2 August 2013: Eltyubyuite: New mineral descriptions of wadalite: a new mineral from the Northern Caucasus, Kabardino-Balkaria, Russia. European Journal
Approximate Weighted Matching On Emerging Manycore and Multithreaded Architectures
Halappanavar, Mahantesh; Feo, John T.; Villa, Oreste; Tumeo, Antonino; Pothen, Alex
2012-11-30
Graph matching is a prototypical combinatorial problem with many applications in computer science and scientific computing, but algorithms for computing optimal matchings are challenging to parallelize. Approximate matching algorithms provide an alternate route for parallelization, and in many contexts compute near-optimal matchings for large-scale graphs. We present sharedmemory parallel implementations for computing half-approximate weighted matching on state-of-the-art multicore (Intel Nehalem and AMD Magny-Cours), manycore (Nvidia Tesla and Nvidia Fermi) and massively multithreaded (Cray XMT) platforms. We provide two implementations: the first implementation uses shared work queues, and is suited to all these platforms; the second implementation is based on dataflow principles, and exploits the architectural features of the Cray XMT. Using a carefully chosen dataset that exhibits characteristics from a wide range of real-world applications, we show scalable performance across different platforms. In particular, for one instance of the input, an R-MAT graph (RMAT-G), we show speedups of: about 32 on 48 cores of an AMD Magny-Cours; 7 on 8 cores of Intel Nehalem; 3 on Nvidia Tesla and 10 on Nvidia Fermi relative to one core of Intel Nehalem; and 60 on 128 processors of Cray XMT. We demonstrate good weak and strong scaling for graphs with up to a billion edges using up to 12, 800 threads. Given the breadth of this work, we focus on simplicity and portability of software rather than excessive fine-tuning for each platform. To the best of our knowledge, this is the first such large-scale study of the half-approximate weighted matching problem on shared-memory platforms. Driven by the critical enabling role of combinatorial algorithms such as matching in scientific computing and the emergence of informatics applications, there is a growing demand to support irregular computations on current and future computing platforms. In this context, we evaluate the capability of emerging multithreaded platforms to tolerate latency induced by irregular memory access patterns, and to support fine-grained parallelism via light-weight synchronization mechanisms. By contrasting the architectural features of these platforms against the Cray XMT, which is specifically designed to support irregular memory-intensive applications, we delineate the impact of these choices on performance.
Large Gap Size Paired-end Library Construction for Second Generation Sequencing
Peng, Ze; Hamilton, Matthew; Froula, Jeff; Ewing, Aren; Foster, Brian; Cheng, Jan-Fang
2010-05-28
Fosmid or BAC end sequencing plays an important role in de novo assembly of large genomes like fungi and plants. However construction and Sanger sequencing of fosmid or BAC libraries are laborious and costly. The current 454 Paired-End (PE) Library and Illumina Jumping Library construction protocols are limited with the gap sizes of approximately 20 kb and 8 kb, respectively. In the attempt to understand the limitations of constructing PE libraries with greater than 30Kb gaps, we have purified 18, 28, 45, and 65Kb sheared DNA fragments from yeast and circularized the ends using the Cre-loxP approach described in the 454 PE Library protocol. With the increasing fragment sizes, we found a general trend of decreasing library quality in several areas. First, redundant reads and reads containing multiple loxP linkers increase when the average fragment size increases. Second, the contamination of short distance pairs (<10Kb) increases as the fragment size increases. Third, chimeric rate increases with the increasing fragment sizes. We have modified several steps to improve the quality of the long span PE libraries. The modification includes (1) the use of special PFGE program to reduce small fragment contamination; (2) the increase of DNA samples in the circularization step and prior to the PCR to reduce redundant reads; and (3) the decrease of fragment size in the double SPRI size selection to get a higher frequency of LoxP linker containing reads. With these modifications we have generated large gap size PE libraries with a much better quality.
Control of pore size in epoxy systems.
Sawyer, Patricia Sue; Lenhart, Joseph Ludlow (North Dakota State University, Fargo, ND); Lee, Elizabeth (North Dakota State University, Fargo, ND); Kallam, Alekhya (North Dakota State University, Fargo, ND); Majumdar, Partha (North Dakota State University, Fargo, ND); Dirk, Shawn M.; Gubbins, Nathan; Chisholm, Bret J. (North Dakota State University, Fargo, ND); Celina, Mathias Christopher; Bahr, James (North Dakota State University, Fargo, ND); Klein, Robert J.
2009-01-01
Both conventional and combinatorial approaches were used to study the pore formation process in epoxy based polymer systems. Sandia National Laboratories conducted the initial work and collaborated with North Dakota State University (NDSU) using a combinatorial research approach to produce a library of novel monomers and crosslinkers capable of forming porous polymers. The library was screened to determine the physical factors that control porosity, such as porogen loading, polymer-porogen interactions, and polymer crosslink density. We have identified the physical and chemical factors that control the average porosity, pore size, and pore size distribution within epoxy based systems.
Can amphiphile architecture directly control vesicle size?
M. J. Greenall; C. M. Marques
2013-01-28
Bilayer membranes self-assembled from simple amphiphiles in solution always have a planar ground-state shape. This is a consequence of several internal relaxation mechanisms of the membrane and prevents the straightforward control of vesicle size. Here, we show that this principle can be circumvented and that direct size control by molecular design is a realistic possibility. Using coarse-grained calculations, we design tetrablock copolymers that form membranes with a preferred curvature, and demonstrate how to form low-polydispersity vesicles while suppressing micellization.
Reduced Operator Approximation for Modelling Open Quantum Systems
Agnieszka Werpachowska
2015-08-05
We present the Reduced Operator Approximation: a simple, physically transparent and computationally efficient method of modelling open quantum systems. It employs the Heisenberg picture of the quantum dynamics, which allows us to focus on the system degrees of freedom in a natural and easy way. We describe different variants of the method, low- and high-order in the system-bath interaction operators, defining them for either general quantum harmonic oscillator baths or specialising them for independent baths with Lorentzian spectral densities. Its wide applicability is demonstrated on the examples of systems coupled to different baths (with varying system-bath interaction strength and bath memory length), and compared with the exact pseudomode and the popular quantum state diffusion approach. The method captures the decoherence of the system interacting with the bath, while conserving the total energy. Our results suggest that quantum coherence effects persist in open quantum systems for much longer times than previously thought.
Surface wake in the random-phase approximation
Garcia de Abajo, F.J. ); Echenique, P.M. )
1993-11-01
The scalar-electric-potential distribution set up by an ion traveling in the vicinity of a plane solid-vacuum interface, that is, the surface-wake potential, is investigated with the specular-reflection model to describe the response of the surface and with the random-phase approximation for the dielectric function of the bulk material. This permits us to address the study of the low-velocity surface wake: the static potential is found to have a dip at the position of the ion; that dip is shifted towards the direction opposite to the velocity vector for velocities smaller than the threshold of creation of plasmons ([approx]1.3[ital v][sub [ital F
Procedures for realizing an approximate universal NOT gate
Jeongho Bang; Seung-Woo Lee; Hyunseok Jeong; Jinhyoung Lee
2012-12-19
We consider procedures to realize an approximate universal NOT gate in terms of average fidelity and fidelity deviation. The average fidelity indicates the optimality of operation on average, while the fidelity deviation does the universality of operation. We show that one-qubit operations have a sharp trade-off relation between average fidelity and fidelity deviation, and two-qubit operations show a looser trade-off relation. The genuine universality holds for operations of more than two qubits, and those of even more qubits are beneficial to compensating imperfection of control. In addition, we take into account operational noises which contaminate quantum operation in realistic circumstances. We show that the operation recovers from the contamination by a feedback procedure of differential evolution. Our feedback scheme is also applicable to finding an optimal and universal operation of NOT.
Pion - Nucleon Bremsstrahlung beyond the Soft-Photon approximation
A. Mariano
2000-04-06
A dynamical model based on effective Lagrangians is proposed to describe the bremsstrahlung reaction $ \\pi N \\to \\pi N \\gamma$ at low energies. The $\\Delta(1232)$ degrees of freedom are incorporated in a way consistent with both, electromagnetic gauge invariance and invariance under contact transformations. The model also includes the initial and final state rescattering of hadrons via a T-matrix with off the momentum-shell effects. The double differential distribution of photons is computed for three different T-matrix models and the results are compared with the soft photon approximation, and with experimental data. The aim of this analysis is to test the off-shell behaviour of the different T-matrices under consideration. Finally an alternative simpler dynamical model that incorporates the unstable character of the isobar-$\\Delta(1232)$ through a complex mass, is presented. As we will see it is suitable for the study of the magnetic moment of the resonance.
A renormalisation group method. II. Approximation by local polynomials
David C. Brydges; Gordon Slade
2014-11-25
This paper is the second in a series devoted to the development of a rigorous renormalisation group method for lattice field theories involving boson fields, fermion fields, or both. The method is set within a normed algebra $\\mathcal{N}$ of functionals of the fields. In this paper, we develop a general method---localisation---to approximate an element of $\\mathcal{N}$ by a local polynomial in the fields. From the point of view of the renormalisation group, the construction of the local polynomial corresponding to $F$ in $\\mathcal{N}$ amounts to the extraction of the relevant and marginal parts of $F$. We prove estimates relating $F$ and its corresponding local polynomial, in terms of the $T_{\\phi}$ semi-norm introduced in part I of the series.
Particle-particle random phase approximation applied to Beryllium isotopes
Guillaume Blanchon; Nicole Vinh Mau; Angela Bonaccorso; Marc Dupuis; Nathalie Pillet
2010-07-16
This work is dedicated to the study of even-even 8-14 Be isotopes using the particle-particle Random Phase Approximation that accounts for two-body correlations in the core nucleus. A better description of energies and two-particle amplitudes is obtained in comparison with models assuming a neutron closed-shell (or subshell) core. A Wood-Saxon potential corrected by a phenomenological particle-vibration coupling term has been used for the neutron-core interaction and the D1S Gogny force for the neutron-neutron interaction. Calculated ground state properties as well as excited state ones are discussed and compared to experimental data. In particular, results suggest the same 2s_1/2-1p_1/2 shell inversion in 13Be as in 11Be.
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DOE technical standards list. Department of Energy standards index
NONE
1995-08-01
This document was prepared for use by personnel involved in the selection and use of DOE technical standards and other Government and non-Government standards. This TSL provides listing of current DOE technical standards, non-Government standards that have been adopted by DOE, other Government documents in which DOE has a recorded interest, and canceled DOE technical standards. Information on new DOE technical standards projects, technical standards released for coordination, recently published DOE technical standards, and activities of non-Government standards bodies that may be of interest to DOE is published monthly in Standards Actions.
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FERC List of Comprehensive Plans | Open Energy Information
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List of LED Exit Signs Incentives | Open Energy Information
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List of United States Utility Companies and Aliases | Open Energy
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List of Agricultural Equipment Incentives | Open Energy Information
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List of Commercial Refrigeration Equipment Incentives | Open Energy
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List of Duct/Air sealing Incentives | Open Energy Information
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List of Evaporative Coolers Incentives | Open Energy Information
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List of Heat recovery Incentives | Open Energy Information
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List of Passive Solar Space Heat Incentives | Open Energy Information
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List of Personal Computing Equipment Incentives | Open Energy Information
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List of Processing and Manufacturing Equipment Incentives | Open Energy
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List of Programmable Thermostats Incentives | Open Energy Information
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List of Refueling Stations Incentives | Open Energy Information
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List of Renewable Fuel Vehicles Incentives | Open Energy Information
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List of Renewable Fuels Incentives | Open Energy Information
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List of Room Air Conditioners Incentives | Open Energy Information
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List of Small Hydroelectric Incentives | Open Energy Information
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List of Solar Energy Incentives | Open Energy Information
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Phone List | U.S. DOE Office of Science (SC)
Office of Science (SC) Website
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Top 500 List Recognizes Fastest Supercomputers | Department of Energy
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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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr.Theories81 to 1990BeTooTips to Save00 List
Mixed series in ultraspherical polynomials and their approximation properties
Sharapudinov, I I
2003-04-30
New (mixed) series in ultraspherical polynomials P{sub n}{sup {alpha}}{sup ,{alpha}}(x) are introduced. The basic difference between a mixed series in the polynomials P{sub n}{sup {alpha}}{sup ,{alpha}}(x) and a Fourier series in the same polynomials is as follows: a mixed series contains terms of the form (2{sup r}f{sub r,k}{sup {alpha}})/(k+2{alpha}){sup [r]}) P{sub k+r}{sup {alpha}}{sup -r,{alpha}}{sup -r}(x), where 1{<=}r is an integer and f{sub r,k}{sup {alpha}} is the kth Fourier coefficient of the derivative f{sup (r)}(x) with respect to the ultraspherical polynomials P{sub k}{sup {alpha}}{sup ,{alpha}}(x). It is shown that the partial sums Y{sub n+2r}{sup {alpha}}(f,x) of a mixed series in the polynomial P{sub k}{sup {alpha}}{sup ,{alpha}}(x) contrast favourably with Fourier sums S{sub n}{sup {alpha}}(f,x) in the same polynomials as regards their approximation properties in classes of differentiable and analytic functions, and also in classes of functions of variable smoothness. In particular, the Y{sub n+2r}{sup {alpha}}(f,x) can be used for the simultaneous approximation of a function f(x) and its derivatives of orders up to (r- 1), whereas the S{sub n}{sup {alpha}}(f,x) are not suitable for this purpose.
Polymer quantization and the saddle point approximation of partition functions
Hugo A. Morales Técotl; Daniel H. Orozco Borunda; Saeed Rastgoo
2015-07-31
The saddle point approximation of the path integral partition functions is an important way of deriving the thermodynamical properties of black holes. However, there are certain black hole models and some mathematically analog mechanical models for which this method can not be applied directly. This is due to the fact that their action evaluated on a classical solution is not finite and its first variation does not vanish for all consistent boundary conditions. These problems can be dealt with by adding a counter-term to the classical action, which is a solution of the corresponding Hamilton-Jacobi equation. In this work we study the effects of polymer quantization on a mechanical model presenting the aforementioned difficulties and contrast it with the above counter-term method. This type of quantization for mechanical models is motivated by the loop quantization of gravity which is known to play a role in the thermodynamics of black holes systems. The model we consider is a non relativistic particle in an inverse square potential and analyze two polarizations of the polymer quantization in which either the position or the momentum is discrete. In the former case, Thiemann's regularization is applied to represent the inverse power potential but we still need to incorporate the Hamilton-Jacobi counter-term which is now modified by polymer corrections. In the latter, momentum discrete case however, such regularization could not be implemented. Yet, remarkably, due to the fact that the position is bounded, we do not need a Hamilton-Jacobi counter-term in order to have a well defined saddle point approximation. Further developments and extensions are commented upon in the discussion.
Polymer quantization and the saddle point approximation of partition functions
Hugo A. Morales-Técotl; Daniel H. Orozco-Borunda; Saeed Rastgoo
2015-11-10
The saddle point approximation of the path integral partition functions is an important way of deriving the thermodynamical properties of black holes. However, there are certain black hole models and some mathematically analog mechanical models for which this method cannot be applied directly. This is due to the fact that their action evaluated on a classical solution is not finite and its first variation does not vanish for all consistent boundary conditions. These problems can be dealt with by adding a counterterm to the classical action, which is a solution of the corresponding Hamilton-Jacobi equation. In this work we study the effects of polymer quantization on a mechanical model presenting the aforementioned difficulties and contrast it with the above counterterm method. This type of quantization for mechanical models is motivated by the loop quantization of gravity which is known to play a role in the thermodynamics of black hole systems. The model we consider is a nonrelativistic particle in an inverse square potential, and analyze two polarizations of the polymer quantization in which either the position or the momentum is discrete. In the former case, Thiemann's regularization is applied to represent the inverse power potential but we still need to incorporate the Hamilton-Jacobi counterterm which is now modified by polymer corrections. In the latter, momentum discrete case however, such regularization could not be implemented. Yet, remarkably, owing to the fact that the position is bounded, we do not need a Hamilton-Jacobi counterterm in order to have a well-defined saddle point approximation. Further developments and extensions are commented upon in the discussion.
Unwinding of circular helicoidal molecules versus size
Marco Zoli
2015-04-12
The thermodynamical stability of a set of circular double helical molecules is analyzed by path integral techniques. The minicircles differ only in \\textit{i)} the radius and \\textit{ii)} the number of base pairs ($N$) arranged along the molecule axis. Instead, the rise distance is kept constant. For any molecule size, the computational method simulates a broad ensemble of possible helicoidal configurations while the partition function is a sum over the path trajectories describing the base pair fluctuational states. The stablest helical repeat of every minicircle is determined by free energy minimization. We find that, for molecules with $N$ larger than $100$, the helical repeat grows linearly with the size and the twist number is constant. On the other hand, by reducing the size below $100$ base pairs, the double helices sharply unwind and the twist number drops to one for $N=\\,20$. This is predicted as the minimum size for the existence of helicoidal molecules in the closed form. The helix unwinding appears as a strategy to release the bending stress associated to the circularization of the molecules.
Grain-size distributions of tsunami sediments
Spencer, Sarah
2011-08-08
tsunamis, Chile 2010 and Peru 2008. The grain-size of the sediment from each tsunami was measured by two common techniques: sieving and digital particle counter. To interpret this real tsunami data, numerical and analytical analysis were used to simulate...
NEEDS SIZE ADJUSTMENT 2 Perfect Chemistry
Chapman, Michael S.
NEEDS SIZE ADJUSTMENT #12;2 Perfect Chemistry 8 Starr Power 10 Balancing Act 14 A Rare Thing.B.A. EDitors Dee Metaj Jill Smith DEsigN Anderson McConaughy Design Co. WritErs Todd Schwartz Jill Smith Jim and friends. Please send correspondence to: Bridges Magazine sm-alum@ohsu.edu OHSU School of Medicine 3181 SW
Strategic Petroleum Reserve: Analysis of size options
Not Available
1990-02-01
This report presents the results of the deliberations of the interagency group formed to study the costs and benefits of expanding the size of the SPR. The study concentrated on severe oil supply disruptions involving sharp reductions in world oil production that were 2 to 4 times larger than the largest 1970s interruption. The disruption sizes and estimated probability of occurrence of these scenarios were supplied by the CIA. The most critical part of the CIA's analysis was the assessment of likelihood of these cases occurring. The CIA approached the likelihood problem by combining an examination of past oil supply disruptions with qualitative analysis of important oil market and regional trends. The study group then used statistical techniques and probability distributions to synthesize the historical data with CIA evaluations of as yet unobserved events. The SPR size study assumed direct purchases of SPR oil and did not assume the use of alternative financing mechanisms. Members of the working group with foreign policy and national security responsibilities provided an in-depth review of strategic considerations affecting SPR size. A number of prior studies, some classified, have addressed the strategic importance and insurance value of the SPR to the US and its allies. The results of these studies have also been incorporated in the current effort. 10 refs., 5 figs.
Sizing and burn time measurements of micron-sized metal powders
Gill, Robert J.; Mohan, Salil; Dreizin, Edward L. [New Jersey Institute of Technology Newark, New Jersey 07102 (United States)
2009-06-15
Detailed ignition and combustion mechanisms are needed to develop optimized propellant and energetic formulations using micron-sized metal powders, such as aluminum. Combustion researchers have traditionally used relatively coarse metal particles to characterize the burn time dependence on particle size. However, measurements of burn times for particles below 10 {mu}m in diameter are still needed for aluminum powders and other metal fuels. The apparatus described here sizes the particles just before the ignition event, providing a direct correlation between individual particle size and its burn time. Two lasers were utilized: a 785 nm laser diode for sizing the particles and a 125 W CO{sub 2} laser for particle ignition. The particles crossed the 785 nm laser beam just before crossing the CO{sub 2} laser beam. The particle size was determined from the amplitude of the scattered 785 nm light pulse. The burn time was determined from the duration of the visible light emission produced from the ignited particle. The in situ measured particle size distributions compared well with the size distributions measured for the same powders by a commercial instrument using low angle laser light scattering. Our measurements with two nominally spherical aluminum powders, suggest that the burn times increase from 0.5 to {approx}2.5 ms as the particle diameters increase from 3 to 8 {mu}m.
Dunin-Borkowski, Rafal E.
Surface plasmon standing waves on Ag nanorods: observations of finite size effects and size to have clear configuration of standing waves of the nanorod. The nm resolution of the electron probe standing wave on a string with fixed ends, we observed that the wavelength of the SP standing wave
Optimal sizing study of hybrid wind/PV/diesel power generation unit
Belfkira, Rachid; Zhang, Lu; Barakat, Georges [Groupe de Recherche en Electrotechnique et Automatique du Havre, University of Le Havre, 25 rue Philippe Lebon, BP 1123, 76063 Le Havre (France)
2011-01-15
In this paper, a methodology of sizing optimization of a stand-alone hybrid wind/PV/diesel energy system is presented. This approach makes use of a deterministic algorithm to suggest, among a list of commercially available system devices, the optimal number and type of units ensuring that the total cost of the system is minimized while guaranteeing the availability of the energy. The collection of 6 months of data of wind speed, solar radiation and ambient temperature recorded for every hour of the day were used. The mathematical modeling of the main elements of the hybrid wind/PV/diesel system is exposed showing the more relevant sizing variables. A deterministic algorithm is used to minimize the total cost of the system while guaranteeing the satisfaction of the load demand. A comparison between the total cost of the hybrid wind/PV/diesel energy system with batteries and the hybrid wind/PV/diesel energy system without batteries is presented. The reached results demonstrate the practical utility of the used sizing methodology and show the influence of the battery storage on the total cost of the hybrid system. (author)
INITIAL PLANETESIMAL SIZES AND THE SIZE DISTRIBUTION OF SMALL KUIPER BELT OBJECTS
Schlichting, Hilke E. [UCLA, Department of Earth and Space Science, 595 Charles E. Young Drive East, Los Angeles, CA 90095 (United States); Fuentes, Cesar I.; Trilling, David E., E-mail: hilke@ucla.edu [Department of Physics and Astronomy, Northern Arizona University, P.O. Box 6010, Flagstaff, AZ 86011 (United States)
2013-08-01
The Kuiper Belt is a remnant from the early solar system and its size distribution contains many important constraints that can be used to test models of planet formation and collisional evolution. We show, by comparing observations with theoretical models, that the observed Kuiper Belt size distribution is well matched by coagulation models, which start with an initial planetesimal population with radii of about 1 km, and subsequent collisional evolution. We find that the observed size distribution above R {approx} 30 km is primordial, i.e., it has not been modified by collisional evolution over the age of the solar system, and that the size distribution below R {approx} 30 km has been modified by collisions and that its slope is well matched by collisional evolution models that use published strength laws. We investigate in detail the resulting size distribution of bodies ranging from 0.01 km to 30 km and find that its slope changes several times as a function of radius before approaching the expected value for an equilibrium collisional cascade of material strength dominated bodies for R {approx}< 0.1 km. Compared to a single power-law size distribution that would span the whole range from 0.01 km to 30 km, we find in general a strong deficit of bodies around R {approx} 10 km and a strong excess of bodies around 2 km in radius. This deficit and excess of bodies are caused by the planetesimal size distribution left over from the runaway growth phase, which left most of the initial mass in small planetesimals while only a small fraction of the total mass is converted into large protoplanets. This excess mass in small planetesimals leaves a permanent signature in the size distribution of small bodies that is not erased after 4.5 Gyr of collisional evolution. Observations of the small Kuiper Belt Object (KBO) size distribution can therefore test if large KBOs grew as a result of runaway growth and constrained the initial planetesimal sizes. We find that results from recent KBO occultation surveys and the observed KBO size distribution can be best matched by an initial planetesimal population that contained about equal mass per logarithmic mass bin in bodies ranging from 0.4 km to 4 km in radius. We further find that we cannot match the observed KBO size distribution if most of the planetesimal mass was contained in bodies that were 10 km in radius or larger simply because their resulting size distribution cannot be sufficiently depleted over 4.5 Gyr to match observations.
Efficient Maintenance and Update of Nonbonded Lists in Macromolecular Simulations
Vajda, Sandor
mechanics and molecular dynamics simulations is the calculation of the nonbonded terms in the energy based cutoff approximations for faster computation of pairwise van der Waals and electrostatic energy, which slows computation for large distance cutoffs. Also, the high cost of updates means that one cannot
2012-01-01
state dissolution kinetics of goethite in the presence of= 3 [Wehrli et al. , 1990]. Goethite/hematite are thought toFor laboratory- ground goethite and hematite particles, an
2012-01-01
L. A. Warren, pp. 151–210, Clay Miner. Soc. , Chantilly, Va.and J. -L. Colin (2008), Miner- alogy as a critical factor
2012-01-01
associated with acid mine drainage, Environ. Geol. Waterextracts from acid mine drainage [Sullivan et al. , 1988;
Real-Time Simultaneous Measurements of Size, Density, and Composition...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Simultaneous Measurements of Size, Density, and Composition of Single Ultrafine Diesel Tailpipe Particles Real-Time Simultaneous Measurements of Size, Density, and Composition of...
Small- and Medium-Size Building Automation and Control System...
Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Emerging...
SBA Increases Size Standards for Waste Remediation Services ...
Office of Environmental Management (EM)
review of all size standards for the next several years. An SBA-issued White Paper entitled, "Size Standards Methodology," which explains how SBA establishes, reviews...
Reduce Pumping Costs Through Optimum Pipe Sizing | Department...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Reduce Pumping Costs Through Optimum Pipe Sizing Reduce Pumping Costs Through Optimum Pipe Sizing This tip sheet discusses how to reduce pumping system costs through optimum pipe...
Overview of Detailed Chemical Speciation and Particle Sizing...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Detailed Chemical Speciation and Particle Sizing for Diesel Exhaust, Both Real Time and Filter Based Measurements Overview of Detailed Chemical Speciation and Particle Sizing for...
Multi-layer diffusion approximation for photon transport in biological tissue
Hollmann, Joseph
2009-06-02
is utilized to solve for the discontinuity that occurs at the tissue-ambient medium interface. The boundary conditions for common index of refraction mismatches are solved for and listed in a table....
Asymptotic safety in the f(R) approximation
Juergen A. Dietz; Tim R. Morris
2013-01-28
In the asymptotic safety programme for quantum gravity, it is important to go beyond polynomial truncations. Three such approximations have been derived where the restriction is only to a general function f(R) of the curvature R>0. We confront these with the requirement that a fixed point solution be smooth and exist for all non-negative R. Singularities induced by cutoff choices force the earlier versions to have no such solutions. However, we show that the most recent version has a number of lines of fixed points, each supporting a continuous spectrum of eigen-perturbations. We uncover and analyse the first five such lines. Sensible fixed point behaviour may be achieved if one consistently incorporates geometry/topology change. As an exploratory example, we analyse the equations analytically continued to R<0, however we now find only partial solutions.We show how these results are always consistent with, and to some extent can be predicted from, a straightforward analysis of the constraints inherent in the equations.
Approximating Ground and Excited State Energies on a Quantum Computer
Stuart Hadfield; Anargyros Papageorgiou
2015-08-06
Approximating ground and a fixed number of excited state energies, or equivalently low order Hamiltonian eigenvalues, is an important but computationally hard problem. Typically, the cost of classical deterministic algorithms grows exponentially with the number of degrees of freedom. Under general conditions, and using a perturbation approach, we provide a quantum algorithm that produces estimates of a constant number $j$ of different low order eigenvalues. The algorithm relies on a set of trial eigenvectors, whose construction depends on the particular Hamiltonian properties. We illustrate our results by considering a special case of the time-independent Schr\\"odinger equation with $d$ degrees of freedom. Our algorithm computes estimates of a constant number $j$ of different low order eigenvalues with error $O(\\epsilon)$ and success probability at least $\\frac34$, with cost polynomial in $\\frac{1}{\\epsilon}$ and $d$. This extends our earlier results on algorithms for estimating the ground state energy. The technique we present is sufficiently general to apply to problems beyond the application studied in this paper.
Polymer quantization and the saddle point approximation of partition functions
Técotl, Hugo A Morales; Rastgoo, Saeed
2015-01-01
The saddle point approximation of the path integral partition functions is an important way of deriving the thermodynamical properties of black holes. However, there are certain black hole models and some mathematically analog mechanical models for which this method can not be applied directly. This is due to the fact that their action evaluated on a classical solution is not finite and its first variation does not vanish for all consistent boundary conditions. These problems can be dealt with by adding a counter-term to the classical action, which is a solution of the corresponding Hamilton-Jacobi equation. In this work we study the effects of polymer quantization on a mechanical model presenting the aforementioned difficulties and contrast it with the above counter-term method. This type of quantization for mechanical models is motivated by the loop quantization of gravity which is known to play a role in the thermodynamics of black holes systems. The model we consider is a non relativistic particle in an i...