National Library of Energy BETA

Sample records for description abstract diffuse

  1. Analytical description of anomalous diffusion in living cells

    E-Print Network [OSTI]

    L. Bruno; M. A. Despósito

    2009-04-14

    We propose a stochastic model for intracellular transport processes associated with the activity of molecular motors. This out-of-equilibrium model, based on a generalized Langevin equation, considers a particle immersed in a viscoelastic environment and simultaneously driven by an external random force that models the motors activity. An analytical expression for the mean square displacement is derived, which exhibits a subdiffusive to superdiffusive transition. We show that the experimentally accessible statistical properties of the diffusive particle motion can be reproduced by this model.

  2. Abstracts

    E-Print Network [OSTI]

    The model in consideration is of interest as the effects of superconducting electron pairs diffusing into the normal region are here represented. Bo Guan ...

  3. Abstracts

    E-Print Network [OSTI]

    2013-11-13

    Nov 16, 2013 ... Charles Smart, MIT. Sat, Nov 16 ... Abstract. Motivated by problems arising in conductivity imaging, we prove existence, uniqueness, and com- ... ciated with the Ginzburg-Landau energy posed on a 2-manifold. We will show ...

  4. ABSTRACT

    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 of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 20102016 News BelowAsked toUSC-Aiken,AUii ABSTRACT This

  5. Description

    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 like submit theCovalent BondingMeeting | Department|DepartmentalDayWhenDescription Expert

  6. Abstract--This paper presents a description of a Mixed Integer Programming (MIP) solution for solving the PJM Unit

    E-Print Network [OSTI]

    McCalley, James D.

    for solving the PJM Unit Commitment problem. Included is a description of the Day- ahead market clearing--Electricity market, Power Generation Dispatch, Mixed Integer Programming, Unit Commitment I. INTRODUCTION AREVA's T&D division has developed a Mixed Integer Programming (MIP) solution to the Unit Commitment problem for use

  7. Environmental site description for a Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) production plant at the Portsmouth Gaseous Diffusion Plant site

    SciTech Connect (OSTI)

    Marmer, G.J.; Dunn, C.P.; Filley, T.H.; Moeller, K.L.; Pfingston, J.M.; Policastro, A.J.; Cleland, J.H.

    1991-09-01

    Uranium enrichment in the United States has utilized a diffusion process to preferentially enrich the U-235 isotope in the uranium product. In the 1970s, the US Department of Energy (DOE) began investigating more efficient and cost-effective enrichment technologies. In January 1990, the Secretary of Energy approved a plan for the demonstration and deployment of the Uranium Atomic Vapor Laser isotope Separation (U-AVLIS) technology with the near-term goal to provide the necessary information to make a deployment decision by November 1992. Initial facility operation is anticipated for 1999. A programmatic document for use in screening DOE sites to locate a U-AVLIS production plant was developed and implemented in two parts. The first part consisted of a series of screening analyses, based on exclusionary and other criteria, that identified a reasonable number of candidate sites. The final evaluation, which included sensitivity studies, identified the Oak Ridge Gaseous Diffusion Plant (ORGDP) site, the Paducah Gaseous Diffusion Plant (PGDP) site, and the Portsmouth Gaseous Diffusion Plant (PORTS) site as having significant advantages over the other sites considered. This environmental site description (ESD) provides a detailed description of the PORTS site and vicinity suitable for use in an environmental impact statement (EIS). This report is based on existing literature, data collected at the site, and information collected by Argonne National Laboratory (ANL) staff during site visits. The organization of the ESD is as follows. Topics addressed in Sec. 2 include a general site description and the disciplines of geology, water resources, biotic resources, air resources, noise, cultural resources, land use. Socioeconomics, and waste management. Identification of any additional data that would be required for an EIS is presented in Sec. 3.

  8. Benchmarking the performance of density functional theory and point charge force fields in their description of sI methane hydrate against diffusion Monte Carlo

    SciTech Connect (OSTI)

    Cox, Stephen J.; Michaelides, Angelos; Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ ; Towler, Michael D.; Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE ; Alfè, Dario; Department of Earth Sciences, University College London Gower Street, London WC1E 6BT

    2014-05-07

    High quality reference data from diffusion Monte Carlo calculations are presented for bulk sI methane hydrate, a complex crystal exhibiting both hydrogen-bond and dispersion dominated interactions. The performance of some commonly used exchange-correlation functionals and all-atom point charge force fields is evaluated. Our results show that none of the exchange-correlation functionals tested are sufficient to describe both the energetics and the structure of methane hydrate accurately, while the point charge force fields perform badly in their description of the cohesive energy but fair well for the dissociation energetics. By comparing to ice I{sub h}, we show that a good prediction of the volume and cohesive energies for the hydrate relies primarily on an accurate description of the hydrogen bonded water framework, but that to correctly predict stability of the hydrate with respect to dissociation to ice I{sub h} and methane gas, accuracy in the water-methane interaction is also required. Our results highlight the difficulty that density functional theory faces in describing both the hydrogen bonded water framework and the dispersion bound methane.

  9. Environmental site description for a Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) production plant at the Paducah Gaseous Diffusion Plant site

    SciTech Connect (OSTI)

    Marmer, G.J.; Dunn, C.P.; Moeller, K.L.; Pfingston, J.M.; Policastro, A.J.; Yuen, C.R.; Cleland, J.H.

    1991-09-01

    Uranium enrichment in the United States has utilized a diffusion process to preferentially enrich the U-235 isotope in the uranium product. The U-AVLIS process is based on electrostatic extraction of photoionized U-235 atoms from an atomic vapor stream created by electron-beam vaporization of uranium metal alloy. The U-235 atoms are ionized when precisely tuned laser light -- of appropriate power, spectral, and temporal characteristics -- illuminates the uranium vapor and selectively photoionizes the U-235 isotope. A programmatic document for use in screening DOE site to locate a U-AVLIS production plant was developed and implemented in two parts. The first part consisted of a series of screening analyses, based on exclusionary and other criteria, that identified a reasonable number of candidate sites. These sites were subjected to a more rigorous and detailed comparative analysis for the purpose of developing a short list of reasonable alternative sites for later environmental examination. This environmental site description (ESD) provides a detailed description of the PGDP site and vicinity suitable for use in an environmental impact statement (EIS). The report is based on existing literature, data collected at the site, and information collected by Argonne National Laboratory (ANL) staff during a site visit. 65 refs., 15 tabs.

  10. Audience design in children’s referential descriptions of abstract and concrete stimuli as a function of addressee familiarity: The boundaries of success. 

    E-Print Network [OSTI]

    Peel, Anna

    Audience design facilitates understanding by ensuring utterances are tailored to addressee needs (Clark & Murphy, 1982). The present research studied audience design in the length, hedging and article use of children’s references to abstract...

  11. Diffusion model of the non-stoichiometric uranium dioxide

    SciTech Connect (OSTI)

    Moore, Emily, E-mail: emily.moore@cea.fr [CEA Saclay, DEN-DPC-SCCME, 91191 Gif-sur-Yvette Cedex (France); Guéneau, Christine, E-mail: christine.gueneau@cea.fr [CEA Saclay, DEN-DPC-SCCME, 91191 Gif-sur-Yvette Cedex (France); Crocombette, Jean-Paul, E-mail: jean-paul.crocombette@cea.fr [CEA Saclay, DEN DEN, Service de Recherches de Métallurgie Physique, 91191 Gif-sur-Yvette Cedex (France)

    2013-07-15

    Uranium dioxide (UO{sub 2}), which is used in light water reactors, exhibits a large range of non-stoichiometry over a wide temperature scale up to 2000 K. Understanding diffusion behavior of uranium oxides under such conditions is essential to ensure safe reactor operation. The current understanding of diffusion properties is largely limited by the stoichiometric deviations inherent to the fuel. The present DICTRA-based model considers diffusion across non-stoichiometric ranges described by experimentally available data. A vacancy and interstitial model of diffusion is applied to the U–O system as a function of its defect structure derived from CALPHAD-type thermodynamic descriptions. Oxygen and uranium self and tracer diffusion coefficients are assessed for the construction of a mobility database. Chemical diffusion coefficients of oxygen are derived with respect to the Darken relation and migration energies of defects are evaluated as a function of stoichiometric deviation. - Graphical abstract: Complete description of Oxygen–Uranium diffusion as a function of composition at various temperatures according to the developed Dictra model. - Highlights: • Assessment of a uranium–oxygen diffusion model with Dictra. • Complete description of U–O diffusion over wide temperature and composition range. • Oxygen model includes terms for interstitial and vacancy migration. • Interaction terms between defects help describe non-stoichiometric domain of UO{sub 2±x}. • Uranium model is separated into mobility terms for the cationic species.

  12. Environmental site description for a Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) production plant at the Oak Ridge Gaseous Diffusion Plant Site

    SciTech Connect (OSTI)

    Not Available

    1991-09-01

    In January 1990, the Secretary of Energy approved a plan for the demonstration and deployment of the Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) technology, with the near-term goal to provide the necessary information to make a deployment decision by November 1992. The U-AVLIS process is based on electrostatic extraction of photoionized U-235 atoms from an atomic vapor stream created by electron-beam vaporization of uranium metal alloy. A programmatic document for use in screening DOE sites to locate the U-AVLIS production plant was developed and implemented in two parts (Wolsko et al. 1991). The first part consisted of a series of screening analyses, based on exclusionary and other criteria, that identified a reasonable number of candidate sites. These sites were then subjected to a more rigorous and detailed comparative analysis for the purpose of developing a short list of reasonable alternative sites for later environmental examination. This environmental site description (ESD) provides a detailed description of the ORGDP site and vicinity suitable for use in an environmental impact statement (EIS). The report is based on existing literature, data collected at the site, and information collected by Argonne National Laboratory (ANL) staff during a site visit. The organization of the ESD is as follows. Topics addressed in Sec. 2 include a general site description and the disciplines of geology, water resources, biotic resources, air resources, noise, cultural resources, land use, socioeconomics, and waste management. Identification of any additional data that would be required for an EIS is presented in Sec. 3. Following the site description and additional data requirements, Sec. 4 provides a short, qualitative assessment of potential environmental issues. 37 refs., 20 figs., 18 tabs.

  13. EBS Radionuclide Transport Abstraction

    SciTech Connect (OSTI)

    J. Prouty

    2006-07-14

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment (TSPA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport from a breached waste package. Advective transport occurs when radionuclides that are dissolved or sorbed onto colloids (or both) are carried from the waste package by the portion of the seepage flux that passes through waste package breaches. Diffusive transport occurs as a result of a gradient in radionuclide concentration and may take place while advective transport is also occurring, as well as when no advective transport is occurring. Diffusive transport is addressed in detail because it is the sole means of transport when there is no flow through a waste package, which may dominate during the regulatory compliance period in the nominal and seismic scenarios. The advective transport rate, when it occurs, is generally greater than the diffusive transport rate. Colloid-facilitated advective and diffusive transport is also modeled and is presented in detail in Appendix B of this report.

  14. EBS Radionuclide Transport Abstraction

    SciTech Connect (OSTI)

    J.D. Schreiber

    2005-08-25

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in ''Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration'' (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment for the license application (TSPA-LA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA-LA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport from a breached waste package. Advective transport occurs when radionuclides that are dissolved or sorbed onto colloids (or both) are carried from the waste package by the portion of the seepage flux that passes through waste package breaches. Diffusive transport occurs as a result of a gradient in radionuclide concentration and may take place while advective transport is also occurring, as well as when no advective transport is occurring. Diffusive transport is addressed in detail because it is the sole means of transport when there is no flow through a waste package, which may dominate during the regulatory compliance period in the nominal and seismic scenarios. The advective transport rate, when it occurs, is generally greater than the diffusive transport rate. Colloid-facilitated advective and diffusive transport is also modeled and is presented in detail in Appendix B of this report.

  15. DIFFUSING ACOUSTIC WAVE TRANSPORT AND SPECTROSCOPY

    E-Print Network [OSTI]

    Page, John

    1 Chapter DIFFUSING ACOUSTIC WAVE TRANSPORT AND SPECTROSCOPY J.H. PAGE, M.L. COWAN Dept. of Physics waves, multiple scattering, energy velocity, Diffusing Acoustic Wave Spectroscopy. Abstract the diffusive transport of ultrasonic waves, and then describe a new ultrasonic technique, Diffusing Acoustic

  16. Hierarchical diffusion

    SciTech Connect (OSTI)

    Bachas, C.P.

    1988-02-01

    We review the solution and properties of the diffusion equation in a hierarchical or ultrametric space. 11 refs.

  17. Technical abstracts: Mechanical engineering, 1990

    SciTech Connect (OSTI)

    Broesius, J.Y.

    1991-03-01

    This document is a compilation of the published, unclassified abstracts produced by mechanical engineers at Lawrence Livermore National Laboratory (LLNL) during the calendar year 1990. Many abstracts summarize work completed and published in report form. These are UCRL-JC series documents, which include the full text of articles to be published in journals and of papers to be presented at meetings, and UCID reports, which are informal documents. Not all UCIDs contain abstracts: short summaries were generated when abstracts were not included. Technical Abstracts also provides descriptions of those documents assigned to the UCRL-MI (miscellaneous) category. These are generally viewgraphs or photographs presented at meetings. An author index is provided at the back of this volume for cross referencing.

  18. Characterization of Fuel-Cell Diffusion Media

    E-Print Network [OSTI]

    Gunterman, Haluna Penelope Frances

    2011-01-01

    Characterization of Fuel-Cell Diffusion Media by HalunaFall 2011 Abstract Characterization of Fuel-Cell Diffusionpredictive capabilities. Characterization of DM and their

  19. Testbed Description

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  20. AbstractAbstract Improving efficiency of thermoelectric

    E-Print Network [OSTI]

    Walker, D. Greg

    AbstractAbstract · Improving efficiency of thermoelectric energy conversion devices is a major-classical transport models used to predict ZT can effectively predict thermoelectric performance of bulk materials method proposed to couple quantum and scattering effects to predict thermoelectric performance. · NEGF

  1. Predictability of extreme events in a branching diffusion model Abstract

    E-Print Network [OSTI]

    2010-01-15

    proverbial “straws in the wind” preceding a hurricane. The following ... including the extreme ones, a cascade process responsible for redistribution of energy (or.

  2. APRIORI BOUNDS FOR REACTION-DIFFUSION SYSTEMS ARISING IN CHEMICAL JEFF S. MCGOUGH AND KYLE RILEY

    E-Print Network [OSTI]

    McGough, Jeff S.

    APRIORI BOUNDS FOR REACTION-DIFFUSION SYSTEMS ARISING IN CHEMICAL KINETICS JEFF S. MCGOUGH AND KYLE RILEY Abstract. The authors investigate reaction diffusion equations which arise in chemical kinetics diffusion equations, gradient bounds, chemical kinetics, autocatalytic reactions AMS subject classifications

  3. Abstract Algebra done Concretely

    E-Print Network [OSTI]

    2004-02-19

    Feb 19, 2004 ... find a book that covered basic abstract algebra with the level and emphasis that ...... c) Substitute these back into the previous equation. 5. Let a ...

  4. Programme, Abstracts, Presentations & Proceedings

    E-Print Network [OSTI]

    Programme, Abstracts, Presentations & Proceedings 24th IAEA Fusion Energy Conference October 8 Secretaries: Mr Ralf Kaiser Mr Richard Kamendje Division of Physical and Chemical Sciences International

  5. BEMS: Abstract book

    SciTech Connect (OSTI)

    1995-06-01

    This volume provides abstracts of presentations made at the Sixteenth Meeting of The Bioelectromagnetics Society held June 12-17, 1994 in Copenhagen, Denmark.

  6. Math 453: Abstract Algebra

    E-Print Network [OSTI]

    TEXTBOOK: J. Gallian; Contemporary Abstract Algebra, 7th edition, Heath. There is a copy of Gallian on reserve in the Mathematics library (3rd floor of MATH).

  7. Volumetric Modeling with Diffusion Surfaces Kenshi Takayama

    E-Print Network [OSTI]

    Igarashi, Takeo

    Volumetric Modeling with Diffusion Surfaces Kenshi Takayama The University of Tokyo Olga Sorkine ERATO Abstract The modeling of volumetric objects is still a difficult problem. Solid texture synthesis colors from nearby surfaces. A straightfor- ward way to compute color diffusion is to solve a volumetric

  8. Facilitated diffusion of proteins on chromatin

    E-Print Network [OSTI]

    O. Benichou; C. Chevalier; B. Meyer; R. Voituriez

    2011-01-26

    We present a theoretical model of facilitated diffusion of proteins in the cell nucleus. This model, which takes into account the successive binding/unbinding events of proteins to DNA, relies on a fractal description of the chromatin which has been recently evidenced experimentally. Facilitated diffusion is shown quantitatively to be favorable for a fast localization of a target locus by a transcription factor, and even to enable the minimization of the search time by tuning the affinity of the transcription factor with DNA. This study shows the robustness of the facilitated diffusion mechanism, invoked so far only for linear conformations of DNA.

  9. Configuration Structures (extended abstract)

    E-Print Network [OSTI]

    Pratt, Vaughan

    Configuration Structures (extended abstract) R.J. van Glabbeek \\Lambda Computer Science Department Science University of Edinburgh Edinburgh EH9 3JZ, UK gdp@dcs.ed.ac.uk Abstract Configuration structures provide a model of concur­ rency generalising the families of configurations of event structures. They can

  10. PREDICATE ABSTRACTION a dissertation

    E-Print Network [OSTI]

    Dill, David L.

    of the original system. The abstract version of the verification condition, a safety property, is model v #12 for finding bugs. However, in the general case, the system is not finite state, and so model checking can automatic, verification of safety properties of infinite state systems. A finite set of abstraction

  11. Abstract Interpretation patrick cousot

    E-Print Network [OSTI]

    Cousot, Patrick

    -specific abstract seman- tics domain D and an abstract seman- tics S L D which is designed in- tuitively in [Cousot and Cousot 1977, 1979] is constructive in the sense that once the standard seman- tics . An example would be the approximation of a trace-based seman- tics by a relational/denotational seman- tics

  12. Abstracting over Semantic Theories 

    E-Print Network [OSTI]

    Holt, Alexander G B

    The topic of this thesis is abstraction over theories of formal semantics for natural language.It is motivated by the belief that a metatheoretical perspective can contribute both to a better theoretical understanding of semantic theories...

  13. Abstraction for web programming 

    E-Print Network [OSTI]

    Yallop, Jeremy

    2010-01-01

    This thesis considers several instances of abstraction that arose in the design and implementation of the web programming language Links. The first concerns user interfaces, specified using HTML forms. We wish to construct ...

  14. Abstracts of contributed papers

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    This volume contains 571 abstracts of contributed papers to be presented during the Twelfth US National Congress of Applied Mechanics. Abstracts are arranged in the order in which they fall in the program -- the main sessions are listed chronologically in the Table of Contents. The Author Index is in alphabetical order and lists each paper number (matching the schedule in the Final Program) with its corresponding page number in the book.

  15. Abstract Interpretation patrick cousot

    E-Print Network [OSTI]

    Cousot, Patrick

    ­specific abstract seman­ tics domain D ] and an abstract seman­ tics S ] 2 L 7! D ] which is designed in­ tuitively seman­ tics S and an approximation ff are cho­ sen, one can derive the best choice for the corresponding of a trace­based seman­ tics by a relational/denotational seman­ tics: ff(P ) def = fhs 0 ; s n i j s 0 s 1

  16. Incremental Machine Descriptions for GCC Sameera Deshpande Uday P. Khedker

    E-Print Network [OSTI]

    Khedker, Uday

    Incremental Machine Descriptions for GCC Sameera Deshpande Uday P. Khedker Indian Institute of Technology, Bombay {sameera,uday}@cse.iitb.ac.in Abstract The mechanism of providing machine descriptions a GCC port exists. However, this mechanism is quite ad hoc and the machine descriptions are dif- ficult

  17. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, H.C.; Cheng, Y.S.

    1984-01-01

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  18. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, Hsu-Chi (Albuquerque, NM); Cheng, Yung-Sung (Albuquerque, NM)

    1984-08-07

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  19. A study of diffusion in binary solutions using spin echoes 

    E-Print Network [OSTI]

    Rousseau, Cecil Clyde

    1962-01-01

    of Experimentally Determined Diffusion Coefficients of Cyclohexane and Acetone with the Results of NcCall, Douglass, and Anderson . . . . . . . . . 23 INTRODUCTION The available descriptions of the liquid state form a continuous spectrum that extends from... the liquid with unit velocity. The intrinsic diffusion coefficient is now given by Di kT Equation (1-11) is known as the Einstein relation. Thus far, no explicit statement has been made concerning diffusion in binary systems. In addition to the intrinsic...

  20. PREDICATE ABSTRACTION a dissertation

    E-Print Network [OSTI]

    Dill, David L.

    property, is model v #12; checked on the abstract system. If successful the verification condition holds an excellent tool for finding bugs. However, in the general case, the system is not finite state, and so model, and in many cases automatic, verification of safety properties of infinite state systems. A finite set

  1. FRONT SPEEDS IN THE VANISHING DIFFUSION LIMIT FOR REACTION-DIFFUSION-CONVECTION EQUATIONS

    E-Print Network [OSTI]

    Mascia, Corrado

    velocity. This convergence also yields a reaction- independent sufficient condition for the minimalFRONT SPEEDS IN THE VANISHING DIFFUSION LIMIT FOR REACTION-DIFFUSION-CONVECTION EQUATIONS E.C.M. CROOKS AND C. MASCIA Abstract. Travelling fronts for scalar balance laws with monostable reaction

  2. Abstract State Machines Capture Parallel Andreas Blass Yuri Gurevich y

    E-Print Network [OSTI]

    Blass, Andreas R.

    Abstract State Machines Capture Parallel Algorithms Andreas Blass #3; Yuri Gurevich y Technical Microsoft Way Redmond, WA 98052 Abstract We give an axiomatic description of parallel, synchronous algo state machine with a background that provides for multisets. #3; Partially supported by NSF grant DMS

  3. ABSTRACTS FOR PAPERS PUBLISHED

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  4. ABSTRACTS FOR PAPERS SUBMITTED

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  5. ABSTRACTS OF PAPERS PUBLISHED

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

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  6. ABSTRACTS OF PAPERS PUBLISHED

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

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  7. ABSTRACTS OF PAPERS PUBLISHED

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

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  8. ABSTRACTS OF PAPERS PUBLISHED

    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 Outreach HomeA Better Anode Design to Improve4AJ01) (See Energy Level79AJ01) (NotAdvanced ABSTRACTS FOR3 - March89

  9. ABSTRACTS OF PAPERS PUBLISHED

    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 Outreach HomeA Better Anode Design to Improve4AJ01) (See Energy Level79AJ01) (NotAdvanced ABSTRACTS FOR3 -

  10. ABSTRACTS OF PAPERS PUBLISHED

    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 of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 20102016 News BelowAsked toUSC-Aiken,AUii ABSTRACT4 - March

  11. VISION Model: Description

    SciTech Connect (OSTI)

    2009-01-18

    Description of VISION model, which is used to estimate the impact of highway vehicle technologies and fuels on energy use and carbon emissions to 2050.

  12. Detailed Income Statement Descriptions

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

    Title* Program Description 5 of 12 maintenance, and construction of BPA's transmission system. RESEARCH & DEVELOPMENT Conducts research focused on technologies related to...

  13. Fuzzy Chemical Abstract Machines

    E-Print Network [OSTI]

    Syropoulos, Apostolos

    2009-01-01

    Fuzzy set theory opens new vistas in computability theory and here I show this by defining a new computational metaphor--the fuzzy chemical metaphor. This metaphor is an extension of the chemical metaphor. In particular, I introduce the idea of a state of a system as a solution of fuzzy molecules, that is molecules that are not just different but rather similar, that react according to a set of fuzzy reaction rules. These notions become precise by introducing fuzzy labeled transition systems. Solutions of fuzzy molecules and fuzzy reaction rules are used to define the general notion of a fuzzy chemical abstract machine, which is a {\\em realization} of the fuzzy chemical metaphor. Based on the idea that these machines can be used to describe the operational semantics of process calculi and algebras that include fuzziness as a fundamental property, I present a toy calculus that is a fuzzy equivalent of the $\\pi$-calculus.

  14. Microfabricated diffusion source

    DOE Patents [OSTI]

    Oborny, Michael C. (Albuquerque, NM); Frye-Mason, Gregory C. (Cedar Crest, NM); Manginell, Ronald P. (Albuquerque, NM)

    2008-07-15

    A microfabricated diffusion source to provide for a controlled diffusion rate of a vapor comprises a porous reservoir formed in a substrate that can be filled with a liquid, a headspace cavity for evaporation of the vapor therein, a diffusion channel to provide a controlled diffusion of the vapor, and an outlet to release the vapor into a gas stream. The microfabricated diffusion source can provide a calibration standard for a microanalytical system. The microanalytical system with an integral diffusion source can be fabricated with microelectromechanical systems technologies.

  15. Marketing Plan Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    Marketing Plan Company Description: Consumer company that provides a product to helps boost Marketing Swat Team Project Description and Deliverables: The team will Identify the best online vehicles of promotions from YouTube celebs, co- marketing with related businesses, affiliate marketing, cross marketing

  16. Accounting Projects Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    and international tax work for individuals, closely held companies, family offices and clients expecting a liquidityAccounting Projects Company Description: CPA firm performing accounting services, bookkeeping. Company Description: a full service CPA firm headquartered in the San Francisco Bay Area. Nationally

  17. 5, 47394799, 2005 description

    E-Print Network [OSTI]

    Boyer, Edmond

    -range and mesoscale dispersion of air pollutants from point sources, such as after an accident in a nuclear power the long-range and mesoscale transport, diffusion, dry and wet deposition, and5 radioactive decay

  18. Job Description Library Create a New Job Description

    E-Print Network [OSTI]

    Pulfrey, David L.

    UBC eRecruit Job Description Library #12;Page 4 Create a New Job Description Navigation: Job Description Library>Add/Edit/Copy Job Descriptions Step 1: Use this page to enter preliminary Job Description, Location: Enter the codes associated with the department. Employment Group, Job Family, Job Code/Classification

  19. AN ALGEBRAIC DESCRIPTION OF ITERATIVE DECODING SCHEMES

    E-Print Network [OSTI]

    Soljanin, Emina

    AN ALGEBRAIC DESCRIPTION OF ITERATIVE DECODING SCHEMES ELKE OFFER AND EMINA SOLJANIN Abstract University of Technology, D- 80290 Munich, Germany, elke@lnt.e-technik.tu-muenchen.de Mathematical Sciences Research Center, Bell Labs, Lucent Technologies, Murray Hill, NJ 07974, USA. emina@lucent.com 1 #12;2 E

  20. Kenya Hourly DNI, GHI and Diffuse Solar Data - Datasets - OpenEI...

    Open Energy Info (EERE)

    Kenya Hourly DNI, GHI and Diffuse Solar Data Abstract Each data file is a set of hourly values of solar radiation (DNI, GHI and diffuse) and meteorological elements for a 1-year...

  1. Maximal energy extraction under discrete diffusive exchange

    E-Print Network [OSTI]

    Michael J. Hay; Jeremy Schiff; Nathaniel J. Fisch

    2015-08-14

    Waves propagating through a bounded plasma can rearrange the densities of states in the six-dimensional velocity-configuration phase space. Depending on the rearrangement, the wave energy can either increase or decrease, with the difference taken up by the total plasma energy. In the case where the rearrangement is diffusive, only certain plasma states can be reached. It turns out that the set of reachable states through such diffusive rearrangements has been described in very different contexts. Building upon those descriptions, and making use of the fact that the plasma energy is a linear functional of the state densities, the maximal extractable energy under diffusive rearrangement can then be addressed through linear programming.

  2. Maximal energy extraction under discrete diffusive exchange

    E-Print Network [OSTI]

    Hay, Michael J; Fisch, Nathaniel J

    2015-01-01

    Waves propagating through a bounded plasma can rearrange the densities of states in the six-dimensional velocity-configuration phase space. Depending on the rearrangement, the wave energy can either increase or decrease, with the difference taken up by the total plasma energy. In the case where the rearrangement is diffusive, only certain plasma states can be reached. It turns out that the set of reachable states through such diffusive rearrangements has been described in very different contexts. Building upon those descriptions, and making use of the fact that the plasma energy is a linear functional of the state densities, the maximal extractable energy under diffusive rearrangement can then be addressed through linear programming.

  3. University of Iceland Description

    E-Print Network [OSTI]

    Bristol, University of

    University of Iceland __________________________________________________________________________________________ Description The University of Iceland (Háskóli Íslands) is a state university founded in 1911. Today, the University of Iceland serves a nation of approximately 320,000 people and provides instruction for some 15

  4. Optimal Multiple Description Transform Coding of Gaussian Vectors

    E-Print Network [OSTI]

    Goyal, Vivek K

    after the inception of information theory, techniques for source and chan- nel coding developed- ination of Shannon's result leads to the primary motivating factor for constructing joint source IEEE Includes minor corrections. Abstract Multiple description coding (MDC) is source coding

  5. Generation of Web Service Descriptions and Web Service

    E-Print Network [OSTI]

    Generation of Web Service Descriptions and Web Service Module Implementation for Concept University of Science and Technology Software Systems Institute (STS) #12;Abstract Nowadays web services in order to initiate the communication. A web services endpoint communication interface utilizes

  6. Abstract Data Types 5 Algebraic Theory of Abstract Data Types

    E-Print Network [OSTI]

    Berger, Ulrich

    stack top: stack elts The following is an algebra for the signature STACK. Algebra SeqN Carriers N, N43 Part II Abstract Data Types #12;44 5 Algebraic Theory of Abstract Data Types An Abstract Data Type (ADT) is a collection of objects and functions, that is, an algebra, where one ignores how

  7. CARBON DIFFUSION ACROSS DISSIMILAR STEEL WELDS

    E-Print Network [OSTI]

    Cambridge, University of

    CARBON DIFFUSION ACROSS DISSIMILAR STEEL WELDS By Julia Margaret Race St. John's College, Cambridge. 111 #12;#12;ABSTRACT Dissimilar steel welds are used extensively in the power generation industry to the high alloy side of the weld. This leaves an area on one side of the weld denuded of carbon

  8. Acoustic Enhancement of Surface Diffusion Chengping Wu,

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    provides an attractive alternative to thermal activation in thin film growth on heat-sensitive substrates to the thermal activation in thin film growth on heat-sensitive substrates. 2. MECHANISMS OF ACOUSTIC ACTIVATION, Russia *S Supporting Information ABSTRACT: The idea of acoustic activation of surface diffusion

  9. DIFFUSING ACOUSTIC WAVE SPECTROSCOPY: FIELD FLUCTUATION SPECTROSCOPY WITH MULTIPLY

    E-Print Network [OSTI]

    Page, John

    DIFFUSING ACOUSTIC WAVE SPECTROSCOPY: FIELD FLUCTUATION SPECTROSCOPY WITH MULTIPLY SCATTERED Martyrs, B.P. 166, 38042 Grenoble Cedex 9, France Abstract. Diffusing Acoustic Wave Spectroscopy (DAWS that acoustic waves, and ultrasonic waves in particular, are playing in understanding the rich diversity of wave

  10. Diffuse optical imaging of the whole head Maria Angela Franceschini

    E-Print Network [OSTI]

    Diffuse optical imaging of the whole head Maria Angela Franceschini Danny K. Joseph Theodore J@nmr.mgh.harvard.edu Abstract. Near-Infrared Spectroscopy NIRS and diffuse optical im- aging DOI are increasingly used to detect of optodes in NIRS instruments has hampered measurement of optical signals from diverse brain regions. Our

  11. Hydrodynamics and Fluctuations Outside of Local Equilibrium: Driven Diffusive Systems

    E-Print Network [OSTI]

    ago by Price between the covariance matrix of electrical current noise and the bulk diffusion matrix¨unchen, Germany 1 #12; Abstract We derive hydrodynamic equations for systems not in local thermodynamic systems(DDS), such as electrical conductors in an applied field with diffusion of charge carriers

  12. Memory abstractions for parallel programming

    E-Print Network [OSTI]

    Lee, I-Ting Angelina

    2012-01-01

    A memory abstraction is an abstraction layer between the program execution and the memory that provides a different "view" of a memory location depending on the execution context in which the memory access is made. Properly ...

  13. Abstract

    E-Print Network [OSTI]

    ... the dynamics remained axisymmetric and the response to the applied periodic control mechanism was synchronous over an extensive range of parameters.

  14. Abstracts

    E-Print Network [OSTI]

    Feb 24, 2000 ... ... of laminar flames as an asymptotic limit for high activation energy. ... We extends Hadamard's theorem to the context of Hele-Shaw flow (the ... metric flow)

  15. Abstract

    E-Print Network [OSTI]

    The forcing delays the onset of centrifugal instability and introduces a $Z_2$ symmetry that involves both space and time. This paper examines the influence of ...

  16. Abstracts

    E-Print Network [OSTI]

    2015-05-22

    Jun 1, 2015 ... some energy. In contrast ... that can be treated by free boundary methods developed in that last 35 years. We will .... optimal thermal insulator.

  17. Abstracts

    E-Print Network [OSTI]

    2015-05-22

    ing plasma transport problems. We will discuss .... We study parabolic chord arc domains, introduced by Hofmann, Lewis and Nyström. (Duke, '04), and prove a ...

  18. Abstract

    Office of Scientific and Technical Information (OSTI)

    on oxidation stoichiometry. However, steam to carbon ratio was found to impact soot production as well as burner stability. The data also showed that raising the operating...

  19. Abstracts

    E-Print Network [OSTI]

    Apr 13, 2013 ... Numerical Methods for the Optimal Design of Optical Coatings. Yuliang ... Optical coatings built from thin-film structures have a wide range of ...

  20. Abstracts

    E-Print Network [OSTI]

    2012-05-26

    One of the method to derive sharp isoperimetric inequality for domains in the Euclidean is to apply the ... We also construct a new ancient solution to the. Yamabe flow on ... uniqueness for hydrodynamic flow (u, d) of nematic liquid crystals, with.

  1. Abstract

    E-Print Network [OSTI]

    1910-20-30

    variably saturated soils employing a Monte Carlo simulation method. The water ... over realizations of the fractal parameters in Monte Carlo fashion. Numerical ...

  2. Abstract

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

    based on a bottom-up approach both from the traditional definition of energy-economic-engineering modeling, the "integrated assessment" model methodology, and from a pragmatic...

  3. Abstract

    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 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposalsAbout SAGEAbout theAboutN ERSCHands

  4. Abstract

    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 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposalsAbout SAGEAbout theAboutN ERSCHands331

  5. Abstract:

    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 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposalsAbout SAGEAboutJ. Sutherland and P.

  6. Abstract:

    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 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposalsAbout SAGEAboutJ. Sutherland and P.New

  7. ABSTRACT

    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 Outreach HomeA Better Anode Design to Improve4AJ01) (See Energy Level79AJ01) (NotAdvanced AcceleratorBROWNE,

  8. Abstract:

    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 Outreach Home Room News Publications Traditional Knowledge KiosksAbout UsAbout New BrunswickAbout

  9. ABSTRACT

    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 of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 20102016 News BelowAsked toUSC-Aiken,AU

  10. ABSTRACT

    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 NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby a contractor ofvar generation (Conference)

  11. ABSTRACT

    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 NaturalDukeWakefield Municipal GasAdministrationTechnicalTechnicalScience.govWSRC-MS-g8-00318 Heat(Journal Article)

  12. Abstract

    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 NaturalDukeWakefield Municipal GasAdministrationTechnicalTechnicalScience.govWSRC-MS-g8-00318ANUDlSiTM-4026, 20027-2331

  13. Cosmology with matter diffusion

    SciTech Connect (OSTI)

    Calogero, Simone; Velten, Hermano E-mail: velten@cce.ufes.br

    2013-11-01

    We construct a viable cosmological model based on velocity diffusion of matter particles. In order to ensure the conservation of the total energy-momentum tensor in the presence of diffusion, we include a cosmological scalar field ? which we identify with the dark energy component of the universe. The model is characterized by only one new degree of freedom, the diffusion parameter ?. The standard ?CDM model can be recovered by setting ? = 0. If diffusion takes place (? > 0) the dynamics of the matter and of the dark energy fields are coupled. We argue that the existence of a diffusion mechanism in the universe may serve as a theoretical motivation for interacting models. We constrain the background dynamics of the diffusion model with Supernovae, H(z) and BAO data. We also perform a perturbative analysis of this model in order to understand structure formation in the universe. We calculate the impact of diffusion both on the CMB spectrum, with particular attention to the integrated Sachs-Wolfe signal, and on the matter power spectrum P(k). The latter analysis places strong constraints on the magnitude of the diffusion mechanism but does not rule out the model.

  14. Feasibility Study Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    Feasibility Study Company Description: The ZZZZZ Office works with start-ups and established...realized with more than 15,000 employees. Short Project Name: Migrate small waste treatment system from Latin America houses which are built in areas where there is no sewer drain line. In order to covert black waters

  15. Title: Marketing Assistant Description

    E-Print Network [OSTI]

    Schweik, Charles M.

    Title: Marketing Assistant Description: The UMass Amherst Career Services Office is searching for a student interested in marketing. The Marketing Assistant will work closely with our in-office marketing Brainstorm new and exciting marketing strategies, including social media Participate and contribute

  16. Project Description 1 Introduction

    E-Print Network [OSTI]

    VanDeGrift, Tammy

    Project Description 1 Introduction This project will investigate "commonsense computing": what, and 3. Apply our findings to changes in classroom pedagogy in ways that can be rigorously evalu- ated. 1 0736572 #12;In the exploratory part of this project, which we are proposing here, we will concentrate

  17. November 2001 Program Description

    E-Print Network [OSTI]

    LBNL-44789 November 2001 Program Description A PC Program WINDOW 5.0 User Manual For Analyzing November 2001 WINDOW 5.0 User Manual Robin Mitchell, Christian Kohler, and Dariush Arasteh Windows, California Dragan Curcija Carli, Inc Amherst, Massachusetts November 2001 © Regents of the University

  18. Market Research Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    development - Market research for enterprise and education adoption - Plan and execute a company-wide pingMarket Research Company Description: A company focused on developing web-based graphical and future products and then develop the necessary strategies and collateral to stay on the bleeding edge

  19. Entrepreneurship Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    with an industry leader). The team will also help to identify key management team members that may be brought on for venture capital funding presentation, key management team member recommendations. Company Description and headquartered in Utah. Our company conducts pharmaceutical trials in the neurosciences, particularly

  20. A Comparison of Fick and Maxwell-Stefan Diffusion Formulations in PEMFC Cathode Gas

    E-Print Network [OSTI]

    Wetton, Brian

    A Comparison of Fick and Maxwell-Stefan Diffusion Formulations in PEMFC Cathode Gas Diffusion Electrolyte Membrane Fuel Cells (PEMFC) are promising energy pro- ducing electrochemical devices [15]. Thus, models of PEMFC include a description of multi- component gas flow in porous media

  1. Automatic Term-Level Abstraction

    E-Print Network [OSTI]

    Brady, Bryan

    2011-01-01

    Challenges . . . . . . . . . . . . . . . . . . Automatic5 Automatic Function Abstraction 5.1 Identifying Candidatethe Progress of Learning Algorithms 7.2.3 Automatic Feature

  2. Pattern Selection in a Reaction-diffusion , Din-Yu Hsieh

    E-Print Network [OSTI]

    Tang, Shaoqiang

    Pattern Selection in a Reaction-diffusion Equation Ping Wang , Din-Yu Hsieh , Shaoqiang Tang , and Jike Wu § Abstract We study pattern selection in spatially-periodic problem of a simplified reaction-diffusion, bifurcation, initial profile 1 Introduction Reaction-diffusion systems have long been adopted to explain

  3. The Fusion Machine (extended abstract)

    E-Print Network [OSTI]

    Gardner, Philippa

    The Fusion Machine (extended abstract) Philippa Gardner Cosimo Laneve Lucian Wischik March 27, 2002. In particular, we describe a dis- tributed abstract machine called the fusion machine. In it, only channels exist at runtime. It uses a form of concurrent constraints called fusions--equations on channel names

  4. Diffusion between evolving interfaces

    E-Print Network [OSTI]

    Janne Juntunen; Juha Merikoski

    2010-11-19

    Diffusion in an evolving environment is studied by continuos-time Monte Carlo simulations. Diffusion is modelled by continuos-time random walkers on a lattice, in a dynamic environment provided by bubbles between two one-dimensional interfaces driven symmetrically towards each other. For one-dimensional random walkers constrained by the interfaces, the bubble size distribution domi- nates diffusion. For two-dimensional random walkers, it is also controlled by the topography and dynamics of the interfaces. The results of the one-dimensional case are recovered in the limit where the interfaces are strongly driven. Even with simple hard-core repulsion between the interfaces and the particles, diffusion is found to depend strongly on the details of the dynamical rules of particles close to the interfaces. Article reference: Journal of Physics: Condensed Matter 22, 465402 (2010).

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

  6. Information Systems Projects Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    from database. Company Description: We have been in business since January, 1970. Family ownedInformation Systems Projects Company Description: We are a successful small business that provides/fixes to our MS Access program. This will allow us to use the program more smoothly, etc. Company Description

  7. OpenVL: A Developer-Level Abstraction of Computer Vision Gregor Miller and Sidney Fels

    E-Print Network [OSTI]

    British Columbia, University of

    OpenVL: A Developer-Level Abstraction of Computer Vision Gregor Miller and Sidney Fels Human- ple language model [Miller and Fels 2013]); the third is a detailed description of the individual

  8. International Pharmaceutical Abstracts (IPA) What is International Pharmaceutical Abstracts?

    E-Print Network [OSTI]

    Saskatchewan, University of

    topic into the search box. #12;2 2. Click on Search to continue. 3. Enter terms to describe another in your search results. "Or" broadens your search by letting you search for related terms or synonyms. #12-related health topics. Searching International Pharmaceutical Abstracts The example below illustrates a step

  9. Poster Abstract -WSN-Erlang: a Functional, High Level Approach to WSN Development

    E-Print Network [OSTI]

    Cugola, Gianpaolo

    Poster Abstract - WSN-Erlang: a Functional, High Level Approach to WSN Development Alessandro@elet.polimi.it Abstract--The complexity in designing, coding, and testing WSN applications is considered among the most relevant factors that limit the diffusion of WSN technology. In this work we claim that Erlang

  10. YUCCA MOUNTAIN SITE DESCRIPTION

    SciTech Connect (OSTI)

    A.M. Simmons

    2004-04-16

    The ''Yucca Mountain Site Description'' summarizes, in a single document, the current state of knowledge and understanding of the natural system at Yucca Mountain. It describes the geology; geochemistry; past, present, and projected future climate; regional hydrologic system; and flow and transport within the unsaturated and saturated zones at the site. In addition, it discusses factors affecting radionuclide transport, the effect of thermal loading on the natural system, and tectonic hazards. The ''Yucca Mountain Site Description'' is broad in nature. It summarizes investigations carried out as part of the Yucca Mountain Project since 1988, but it also includes work done at the site in earlier years, as well as studies performed by others. The document has been prepared under the Office of Civilian Radioactive Waste Management quality assurance program for the Yucca Mountain Project. Yucca Mountain is located in Nye County in southern Nevada. The site lies in the north-central part of the Basin and Range physiographic province, within the northernmost subprovince commonly referred to as the Great Basin. The basin and range physiography reflects the extensional tectonic regime that has affected the region during the middle and late Cenozoic Era. Yucca Mountain was initially selected for characterization, in part, because of its thick unsaturated zone, its arid to semiarid climate, and the existence of a rock type that would support excavation of stable openings. In 1987, the United States Congress directed that Yucca Mountain be the only site characterized to evaluate its suitability for development of a geologic repository for high-level radioactive waste and spent nuclear fuel.

  11. Virtual World Grammar (Extended Abstract)

    E-Print Network [OSTI]

    Rodríguez, Inmaculada

    Virtual World Grammar (Extended Abstract) Tomas Trescak Artificial Intelligence Research Institute by means of 3D virtual worlds facilitating then the interaction among participants, i.e humans and agents. In this paper we propose a system that can automatically gen- erate a 3D virtual world from formal

  12. Online Search Aids Petroleum Abstracts

    E-Print Network [OSTI]

    Reynolds, Albert C.

    to enter the words for the query. The center frame will display the list of terms resulting from the queryOnline Search Aids User Guide Petroleum Abstracts® A Division of The University of Tulsa July 1. A compilation of relevant E&P technical index terms and their relationships, covering the areas of geology

  13. Two types of diffusions at the cathode/electrolyte interface in IT-SOFCs

    SciTech Connect (OSTI)

    Li Zhipeng, E-mail: LI.Zhipeng@nims.go.jp [Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044 (Japan); Mori, Toshiyuki [Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044 (Japan); Auchterlonie, Graeme John [Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia); Zou Jin [Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia); Division of Materials, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia); Drennan, John [Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia)

    2011-09-15

    Analytical transmission electron microscopy, in particular with the combination of energy dispersive X-ray spectroscopy (EDX) and electron energy-loss spectroscopy (EELS), has been performed to investigate the microstructure and microchemistry of the interfacial region between the cathode (La{sub 0.6}Sr{sub 0.4}Co{sub 0.8}Fe{sub 0.2}O{sub 3}, LSCF) and the electrolyte (Gd-doped ceria, GDC). Two types of diffusions, mutual diffusion between cathode and electrolyte as well as the diffusion along grain boundaries, have been clarified. These diffusions suggest that the chemical stability of LSCF and GDC are not as good as previously reported. The results are more noteworthy if we take into consideration the fact that such interdiffusions occur even during the sintering process of cell preparation. - Graphical Abstract: Two types of diffusions, the mutual diffusion and the diffusion along grain boundaries, occurred at the cathode/electrolyte interface of intermediate temperature solid state fuel cells, during cell preparation. The mutual diffusion is denoted by black arrows and the diffusion along grain boundaries assigned by pink arrows. Highlights: > All the cations in cathode (LSCF) and electrolyte (GDC) can mutually diffuse into each other. > Diffusing elements will segregate at grain boundaries or triple junctions around the cathode/electrolyte interface. > Two types of diffusions, the mutual diffusion and diffusion along grain boundaries, have been clarified thereafter.

  14. In-Package Chemistry Abstraction

    SciTech Connect (OSTI)

    E. Thomas

    2004-11-09

    This report was developed in accordance with the requirements in ''Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package'' (BSC 2004 [DIRS 171583]). The purpose of the in-package chemistry model is to predict the bulk chemistry inside of a breached waste package and to provide simplified expressions of that chemistry as function of time after breach to Total Systems Performance Assessment for the License Application (TSPA-LA). The scope of this report is to describe the development and validation of the in-package chemistry model. The in-package model is a combination of two models, a batch reactor model that uses the EQ3/6 geochemistry-modeling tool, and a surface complexation model that is applied to the results of the batch reactor model. The batch reactor model considers chemical interactions of water with the waste package materials and the waste form for commercial spent nuclear fuel (CSNF) waste packages and codisposed waste packages that contain both high-level waste glass (HLWG) and DOE spent fuel. The surface complexation model includes the impact of fluid-surface interactions (i.e., surface complexation) on the resulting fluid composition. The model examines two types of water influx: (1) the condensation of water vapor that diffuses into the waste package, and (2) seepage water that enters the waste package from the drift as a liquid. (1) Vapor Influx Case: The condensation of vapor onto the waste package internals is simulated as pure H2O and enters at a rate determined by the water vapor pressure for representative temperature and relative humidity conditions. (2) Water Influx Case: The water entering a waste package from the drift is simulated as typical groundwater and enters at a rate determined by the amount of seepage available to flow through openings in a breached waste package. TSPA-LA uses the vapor influx case for the nominal scenario for simulations where the waste package has been breached but the drip shield remains intact, so all of the seepage flow is diverted from the waste package. The chemistry from the vapor influx case is used to determine the stability of colloids and the solubility of radionuclides available for transport by diffusion, and to determine the degradation rates for the waste forms. TSPA-LA uses the water influx case for the seismic scenario, where the waste package has been breached and the drip shield has been damaged such that seepage flow is actually directed into the waste package. The chemistry from the water influx case that is a function of the flow rate is used to determine the stability of colloids and the solubility of radionuclides available for transport by diffusion and advection, and to determine the degradation rates for the CSNF and HLW glass. TSPA-LA does not use this model for the igneous scenario. Outputs from the in-package chemistry model implemented inside TSPA-LA include pH, ionic strength, and total carbonate concentration. These inputs to TSPA-LA will be linked to the following principle factors: dissolution rates of the CSNF and HLWG, dissolved concentrations of radionuclides, and colloid generation.

  15. Partially Reflected Diffusion

    E-Print Network [OSTI]

    A. Singer; Z. Schuss; D. Holcman

    2007-09-02

    The radiation (reaction, Robin) boundary condition for the continuum diffusion equation is widely used in chemical and biological applications to express reactive boundaries. The underlying trajectories of the diffusing particles are believed to be partially absorbed and partially reflected at the reactive boundary, however, the relation between the reaction (radiation) constant in the Robin boundary condition and the reflection probability is still unclear. In this paper we clarify the issue by finding the relation between the reaction (radiation) constant and the absorption probability of the diffusing trajectories at the boundary. We analyze the Euler scheme for the underlying It\\^o dynamics, which is assumed to have variable drift and diffusion tensor, with partial reflection at the boundary. Trajectories that cross the boundary are terminated with a given probability and otherwise are reflected in a normal or oblique direction. We use boundary layer analysis of the corresponding Wiener path integral to resolve the non-uniform convergence of the probability density function of the numerical scheme to the solution of the Fokker-Planck equation with the Robin boundary condition, as the time step is decreased. We show that the Robin boundary condition is recovered in the limit iff trajectories are reflected in the co-normal direction. We find the relation of the reactive constant to the termination probability. We show the effect of using the new relation in numerical simulations.

  16. Cataloging Compared to Descriptive Bibliography, Abstracting and Indexing Services and Metadata

    E-Print Network [OSTI]

    Yee, Martha M

    2007-01-01

    indexing services do use a thesaurus since the emphasis isauthors and works. However, the thesaurus usually bears norelationship to any other thesaurus or subject heading list;

  17. Structure of Laminar Sooting Inverse Diffusion Flames

    E-Print Network [OSTI]

    Mikofski, Mark A

    2007-01-01

    Combust. Structure of Laminar Sooting Inverse Diffusion2002, p. 252. Structure of Laminar Sooting Inverse Diffusion219-226. Structure of Laminar Sooting Inverse Diffusion

  18. Sandia Energy - Diffusion Bonding Characterization

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

    bond surface is poor or only the region near this corner. Diffusion 7-8-9 "Diffusion Welding and Brazing," in Welding Handbook, 7th ed., American Welding Society, 1980, p 311-335...

  19. Description of the Scenario Machine

    E-Print Network [OSTI]

    V. M. Lipunov; K. A. Postnov; M. E. Prokhorov; A. I. Bogomazov

    2007-09-26

    We present here an updated description of the "Scenario Machine" code. This tool is used to carry out a population synthesis of binary stars. Previous version of the description can be found at http://xray.sai.msu.ru/~mystery//articles/review/contents.html

  20. MESOSCALE DESCRIPTION OF DEFECTED MATERIALS

    E-Print Network [OSTI]

    Vinals, Jorge

    MESOSCALE DESCRIPTION OF DEFECTED MATERIALS Jorge Vi~nals School of Physics and Astronomy. Laughlin) Small but finite wavenumber and finite frequency ("mesoscale") response functions and transport;MESOSCALE DESCRIPTION B B B B B B B A B A B A A B B A A A A BB A B Microscopic Mesoscopic Macroscopic vn

  1. Ann. Geophysicae 14, 1051--1059 (1996) EGS --Springer-Verlag 1996 Diffuse solar radiation and associated meteorological

    E-Print Network [OSTI]

    Boyer, Edmond

    1996-01-01

    Ann. Geophysicae 14, 1051--1059 (1996) EGS -- Springer-Verlag 1996 Diffuse solar radiation: 15 May 1996/Accepted: 27 May 1996 Abstract. Solar diffuse radiation data including global radiation and the monthly ratios of diffuse to global solar radiation have been examined, with a special emphasis

  2. IN-PACKAGE CHEMISTRY ABSTRACTION

    SciTech Connect (OSTI)

    E. Thomas

    2005-07-14

    This report was developed in accordance with the requirements in ''Technical Work Plan for Postclosure Waste Form Modeling'' (BSC 2005 [DIRS 173246]). The purpose of the in-package chemistry model is to predict the bulk chemistry inside of a breached waste package and to provide simplified expressions of that chemistry as a function of time after breach to Total Systems Performance Assessment for the License Application (TSPA-LA). The scope of this report is to describe the development and validation of the in-package chemistry model. The in-package model is a combination of two models, a batch reactor model, which uses the EQ3/6 geochemistry-modeling tool, and a surface complexation model, which is applied to the results of the batch reactor model. The batch reactor model considers chemical interactions of water with the waste package materials, and the waste form for commercial spent nuclear fuel (CSNF) waste packages and codisposed (CDSP) waste packages containing high-level waste glass (HLWG) and DOE spent fuel. The surface complexation model includes the impact of fluid-surface interactions (i.e., surface complexation) on the resulting fluid composition. The model examines two types of water influx: (1) the condensation of water vapor diffusing into the waste package, and (2) seepage water entering the waste package as a liquid from the drift. (1) Vapor-Influx Case: The condensation of vapor onto the waste package internals is simulated as pure H{sub 2}O and enters at a rate determined by the water vapor pressure for representative temperature and relative humidity conditions. (2) Liquid-Influx Case: The water entering a waste package from the drift is simulated as typical groundwater and enters at a rate determined by the amount of seepage available to flow through openings in a breached waste package.

  3. Peridynamic thermal diffusion

    SciTech Connect (OSTI)

    Oterkus, Selda [Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721 (United States); Madenci, Erdogan, E-mail: madenci@email.arizona.edu [Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721 (United States); Agwai, Abigail [Intel Corporation, Chandler, AZ 85226 (United States)

    2014-05-15

    This study presents the derivation of ordinary state-based peridynamic heat conduction equation based on the Lagrangian formalism. The peridynamic heat conduction parameters are related to those of the classical theory. An explicit time stepping scheme is adopted for numerical solution of various benchmark problems with known solutions. It paves the way for applying the peridynamic theory to other physical fields such as neutronic diffusion and electrical potential distribution.

  4. Multiple regimes of diffusion

    E-Print Network [OSTI]

    B. Mehlig; M. Wilkinson; V. Bezuglyy; K. Gustavsson; K. Nakamura

    2009-01-20

    We consider the diffusion of independent particles experiencing random accelerations by a space- and time-dependent force as well as viscous damping. This model can exhibit several asymptotic behaviours, depending upon the limiting cases which are considered, some of which have been discussed in earlier work. Here we explore the full space of dimensionless parameters, and introduce an "asymptotic phase diagram" which delineates the limiting regimes.

  5. Formalizing Style to Understand Descriptions of Software Architecture

    E-Print Network [OSTI]

    of interaction between those components, global system properties (such as throughput and latency), and life­cycleFormalizing Style to Understand Descriptions of Software Architecture Gregory Abowd Robert Allen of Software Architecture,'' Proc. SIGSOFT'93: Foundations of Software Engineering, December 1993. Abstract

  6. A modular description for collimator EGS simulation tasks

    E-Print Network [OSTI]

    Lanconelli, Nico

    A modular description for collimator EGS simulation tasks geometry in Alessandro Bevilacqua, Dante, Alessandro Riccardi Abstract-EGS is a very common Monte Carlo code, used in the simulation of Nuclear configuration and camera design in Single Photon Emission studies. Using the EGS code, users must define

  7. Correspondences between Wavelet Shrinkage and Nonlinear Diffusion

    E-Print Network [OSTI]

    variants [8,31], total variation (TV) diffusion [2], or balanced forward-backward (BFB) diffusion [21

  8. Diffusion in silicon isotope heterostructures

    SciTech Connect (OSTI)

    Silvestri, Hughes Howland

    2004-05-14

    The simultaneous diffusion of Si and the dopants B, P, and As has been studied by the use of a multilayer structure of isotopically enriched Si. This structure, consisting of 5 pairs of 120 nm thick natural Si and {sup 28}Si enriched layers, enables the observation of {sup 30}Si self-diffusion from the natural layers into the {sup 28}Si enriched layers, as well as dopant diffusion from an implanted source in an amorphous Si cap layer, via Secondary Ion Mass Spectrometry (SIMS). The dopant diffusion created regions of the multilayer structure that were extrinsic at the diffusion temperatures. In these regions, the Fermi level shift due to the extrinsic condition altered the concentration and charge state of the native defects involved in the diffusion process, which affected the dopant and self-diffusion. The simultaneously recorded diffusion profiles enabled the modeling of the coupled dopant and self-diffusion. From the modeling of the simultaneous diffusion, the dopant diffusion mechanisms, the native defect charge states, and the self- and dopant diffusion coefficients can be determined. This information is necessary to enhance the physical modeling of dopant diffusion in Si. It is of particular interest to the modeling of future electronic Si devices, where the nanometer-scale features have created the need for precise physical models of atomic diffusion in Si. The modeling of the experimental profiles of simultaneous diffusion of B and Si under p-type extrinsic conditions revealed that both species are mediated by neutral and singly, positively charged Si self-interstitials. The diffusion of As and Si under extrinsic n-type conditions yielded a model consisting of the interstitialcy and vacancy mechanisms of diffusion via singly negatively charged self-interstitials and neutral vacancies. The simultaneous diffusion of P and Si has been modeled on the basis of neutral and singly negatively charged self-interstitials and neutral and singly positively charged P species. Additionally, the temperature dependence of the diffusion coefficient of Si in Ge was measured over the temperature range of 550 C to 900 C using a buried Si layer in an epitaxially grown Ge layer.

  9. SWITCH Model AND Data Description: 2050 Timeframe................................................ 2 SWITCH Model Description ........................................................................................................2

    E-Print Network [OSTI]

    Kammen, Daniel M.

    1 SWITCH Model AND Data Description: 2050 Timeframe................................................ 2 SWITCH Model Description.................................................................................................................................41 #12;2 SWITCH MODEL AND DATA DESCRIPTION: 2050 TIMEFRAME December 2011 SWITCH was created

  10. Ozone Conference II: Abstract Proceedings

    SciTech Connect (OSTI)

    None

    1999-11-01

    Ozone Conference II: Pre- and Post-Harvest Applications Two Years After Gras, was held September 27-28, 1999 in Tulare, California. This conference, sponsored by EPRI's Agricultural Technology Alliance and Southern California Edison's AgTAC facility, was coordinated and organized by the on-site ATA-AgTAC Regional Center. Approximately 175 people attended the day-and-a-half conference at AgTAC. During the Conference twenty-two presentations were given on ozone food processing and agricultural applications. Included in the presentations were topics on: (1) Ozone fumigation; (2) Ozone generation techniques; (3) System and design applications; (4) Prewater treatment requirements; (5) Poultry water reuse; (6) Soil treatments with ozone gas; and (7) Post-harvest aqueous and gaseous ozone research results. A live videoconference between Tulare and Washington, D.C. was held to discuss the regulators' view from inside the beltway. Attendees participated in two Roundtable Question and Answer sessions and visited fifteen exhibits and demonstrations. The attendees included university and governmental researchers, regulators, consultants and industry experts, technology developers and providers, and corporate and individual end-users. This report is comprised of the Abstracts of each presentation, biographical sketches for each speaker and a registration/attendees list.

  11. An abstract approach to music.

    SciTech Connect (OSTI)

    Kaper, H. G.; Tipei, S.

    1999-04-19

    In this article we have outlined a formal framework for an abstract approach to music and music composition. The model is formulated in terms of objects that have attributes, obey relationships, and are subject to certain well-defined operations. The motivation for this approach uses traditional terms and concepts of music theory, but the approach itself is formal and uses the language of mathematics. The universal object is an audio wave; partials, sounds, and compositions are special objects, which are placed in a hierarchical order based on time scales. The objects have both static and dynamic attributes. When we realize a composition, we assign values to each of its attributes: a (scalar) value to a static attribute, an envelope and a size to a dynamic attribute. A composition is then a trajectory in the space of aural events, and the complex audio wave is its formal representation. Sounds are fibers in the space of aural events, from which the composer weaves the trajectory of a composition. Each sound object in turn is made up of partials, which are the elementary building blocks of any music composition. The partials evolve on the fastest time scale in the hierarchy of partials, sounds, and compositions. The ideas outlined in this article are being implemented in a digital instrument for additive sound synthesis and in software for music composition. A demonstration of some preliminary results has been submitted by the authors for presentation at the conference.

  12. New Business Opportunity Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    to consumers, businesses and institutions. Short Project Name: New Prepaid Product Launch Analytics Project Description and Deliverables: We introduced "ZZZZZ", a reloadable prepaid card where customers can load funds

  13. Mobile Agent Abstractions: Formulation and Implementation

    E-Print Network [OSTI]

    Joshi, Rushikesh K.

    , Mumbai-400076, India. Email := {rkj, harikcr, ansari}@cse.iitb.ac.in Abstract We present mobile agent and behavioral properties of the agent abstractions. Guidelines for mapping the abstractions to an implementation

  14. Flexible Hardware Abstraction for Wireless Sensor Networks

    E-Print Network [OSTI]

    California at Berkeley, University of

    Flexible Hardware Abstraction for Wireless Sensor Networks Vlado Handziski, Joseph Polastre, Jan; Computer Science Department Berkeley, CA 94720 US Abstract-- We present a flexible Hardware Abstraction gradually adapts the capabilities of the underlying hardware plat- forms to the selected platform

  15. A Flamelet Description of Premixed Laminar Flames and the Relation with Flame Stretch

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    1 A Flamelet Description of Premixed Laminar Flames and the Relation with Flame Stretch L.P.H. de of Mathematics and Computing Science, PO Box 513, 5600MB Eindhoven, The Netherlands ABSTRACT ­ A laminar flamelet description is derived for premixed laminar flames. The full set of 3D instationary combustion equations

  16. On the Computational Complexity of Behavioral Description-Based Web Service Composition$

    E-Print Network [OSTI]

    Lee, Dongwon

    On the Computational Complexity of Behavioral Description-Based Web Service Composition$ Wonhong Park, PA 16802, USA. Abstract The behavioral description-based Web Service Composition (WSC) problem deals with the automatic construction of a coordinator web service that controls a set of web services

  17. SEDIMENT DESCRIPTIONS R/V POLAR DUKE

    E-Print Network [OSTI]

    SEDIMENT DESCRIPTIONS R/V POLAR DUKE CRUISE IV, 1989 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED R. Janecek Sediment Descriptions Dennis S. Cassidy F. Amisar Kaharoeddin Xinlan Liu Technical ........................................................... 10 SEDIMENT CLASSIFICATION ..................................................... 11 Pelagic Sediments

  18. SEDIMENT DESCRIPTIONS R/V POLAR DUKE

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS R/V POLAR DUKE CRUISE III, 1988 #12;#12;DESCRIPTIONS OF SEDIMENT and Thomas R. Janecek Sediment Descriptions Dennis S. Cassidy Amisar Kaharoeddin Xinlan Liu Technical ........................................................... 20 SEDIMENT CLASSIFICATION ..................................................... 21 Details

  19. SEDIMENT DESCRIPTIONS R/V POLAR DUKE

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS R/V POLAR DUKE 1991 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED Sediment Descriptions Xinlan Liu Technical Assistant Carl Painter Antarctic Marine Geology Research ........................................................... 15 SEDIMENT CLASSIFICATION ..................................................... 16 Pelagic Sediments

  20. Super-underweighting of rare events with repeated descriptive Eldad Yechiam

    E-Print Network [OSTI]

    Yechiam, Eldad

    , there has been a proliferation of systems that present geographical information concerning risk. Examples). Similarly, government systems, such as the US Traveler Enrollment Program, provide online information with repeated descriptive summaries Abstract: Field studies suggest that providing summarized information

  1. Scoring an Abstract Contemporary Silent Film

    E-Print Network [OSTI]

    Frost, Crystal

    2014-01-01

    an Abstract Contemporary Silent Film A thesis submitted inAbstract Contemporary Silent Film by Crystal Frost Master ofan original digital audio film score with full sound design

  2. Abstract Scalable Performance Engineering Notation | ORNL

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

    Abstract Scalable Performance Engineering Notation May 01, 2013 Aspen (Abstract Scalable Performance Engineering Notation) is a domain specific language for performance modeling...

  3. Fast Multipole Representation of Diffusion Curves and Points Timothy Sun

    E-Print Network [OSTI]

    Columbia University

    Fast Multipole Representation of Diffusion Curves and Points Timothy Sun Papoj Thamjaroenporn performed on the fast multipole representation. Abstract We propose a new algorithm for random-access evaluation of diffu- sion curve images (DCIs) using the fast multipole method. Unlike all previous methods

  4. Stress and diffusion induced interface motion: Modelling and numerical simulations

    E-Print Network [OSTI]

    Styles, Vanessa

    Stress and diffusion induced interface motion: Modelling and numerical simulations Harald Garcke of Mathematics, University of Sussex, Brighton, BN1 9QH, U.K. Abstract We propose a phase field model for stress stress effects. In this paper we will demonstrate that the model can also be used to describe other

  5. THERMAL DIFFUSION OF HEAT PULSE IN SUBCOOLED LIQUID NITROGEN

    E-Print Network [OSTI]

    Chang, Ho-Myung

    and result in better thermal protection and faster recovery from a heat pulse. KEYWORDS: Heat TransferTHERMAL DIFFUSION OF HEAT PULSE IN SUBCOOLED LIQUID NITROGEN H. M. Chang1 , J. J. Byun1 , J. H ABSTRACT Transient heat transfer caused by a heat pulse in subcooled liquid nitrogen is investigated

  6. MODELLING WAX DIFFUSION IN CRUDE OILS: THE COLD FINGER , A. Fasano

    E-Print Network [OSTI]

    Primicerio, Mario

    MODELLING WAX DIFFUSION IN CRUDE OILS: THE COLD FINGER DEVICE S. Correra , A. Fasano , L. Fusi , M. Primicerio Abstract In this paper we show how to obtain wax diffusivity and solubility in crude oils from obtained in simulations are in agreement with data of field experiments. 1 Introduction Waxy crude oils

  7. Wax diffusivity under given thermal gradient: a mathematical model , A. Fasano

    E-Print Network [OSTI]

    Primicerio, Mario

    Wax diffusivity under given thermal gradient: a mathematical model S. Correra , A. Fasano , L. Fusi , M. Primicerio , F. Rosso Abstract In this paper we describe how to obtain wax diffusivity and solubility in a saturated crude oil using the measurements of solid wax deposit in the experimental apparatus

  8. Liquid water transport in fuel cell gas diffusion layers Aimy Ming Jii Bazylak

    E-Print Network [OSTI]

    Victoria, University of

    Liquid water transport in fuel cell gas diffusion layers by Aimy Ming Jii Bazylak Bachelor means, without the permission of the author. #12;ii Liquid water transport in fuel cell gas diffusion State University) Abstract Liquid water management has a major impact on the performance and durability

  9. SPECTRAL DISTRIBUTIONS OF DIFFUSE AND GLOBAL IRRADIANCE FOR CLEAR AND CLOUDY PERIODS

    E-Print Network [OSTI]

    Oregon, University of

    SPECTRAL DISTRIBUTIONS OF DIFFUSE AND GLOBAL IRRADIANCE FOR CLEAR AND CLOUDY PERIODS Gina@uoregon.edu ABSTRACT An LI1800 Portable Spectroradiometer is used to measure solar spectral irradiance for solar showing global horizontal and diffuse irradiance for clear and cloudy days, and then used

  10. IMAGING WITH DIFFUSE PHOTON DENSITY WAVES Maureen A. O'Leary

    E-Print Network [OSTI]

    IMAGING WITH DIFFUSE PHOTON DENSITY WAVES Maureen A. O'Leary A DISSERTATION in PHYSICS Presented Chairperson #12;COPYRIGHT Maureen Ann O'Leary 1996 #12;DEDICATION This work is dedicated to Mom, Dad, Terry v without David's support. #12;ABSTRACT IMAGING WITH DIFFUSE PHOTON DENSITY WAVES Maureen A. O'Leary

  11. An Adaptive, Knowledge-Driven Medical Image Search Engine for Interactive Diffuse Parenchymal Lung Disease

    E-Print Network [OSTI]

    Chandy, John A.

    An Adaptive, Knowledge-Driven Medical Image Search Engine for Interactive Diffuse Parenchymal Lung Abstract Characterization and quantification of the severity of diffuse parenchymal lung diseases (DPLD have been obtained on a small test set. Keywords: CT; texture analysis; interstitial lung disease

  12. Numerical Passage from Radiative Heat Transfer to Nonlinear Diffusion Models \\Lambda

    E-Print Network [OSTI]

    Schmeiser, Christian

    Numerical Passage from Radiative Heat Transfer to Nonlinear Diffusion Models \\Lambda A. Klar y C. Schmeiser z Abstract Radiative heat transfer equations including heat conduction are consid­ ered situations are presented. Keywords. radiative heat transfer, asymptotic analysis, nonlinear diffusion limit

  13. Basic Studies of Non-Diffusive Transport in Plasmas

    SciTech Connect (OSTI)

    Morales, George J.; Maggs, James E.

    2014-10-25

    The project expanded and developed mathematical descriptions, and corresponding numerical modeling, of non-diffusive transport to incorporate new perspectives derived from basic transport experiments performed in the LAPD device at UCLA, and at fusion devices throughout the world. By non-diffusive it is meant that the transport of fundamental macroscopic parameters of a system, such as temperature and density, does not follow the standard diffusive behavior predicted by a classical Fokker-Planck equation. The appearance of non-diffusive behavior is often related to underlying microscopic processes that cause the value of a system parameter, at one spatial position, to be linked to distant events, i.e., non-locality. In the LAPD experiments the underlying process was traced to large amplitude, coherent drift-waves that give rise to chaotic trajectories. Significant advances were made in this project. The results have lead to a new perspective about the fundamentals of edge transport in magnetically confined plasmas; the insight has important consequences for worldwide studies in fusion devices. Progress was also made in advancing the mathematical techniques used to describe fractional diffusion.

  14. Detailed Course Module Description | Department of Energy

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

    Detailed Course Module Description Detailed Course Module Description This document lists the course modules for building science courses offered at Cornell's Collaborator...

  15. Physical Description and Experimental Characterization of the...

    Office of Scientific and Technical Information (OSTI)

    Physical Description and Experimental Characterization of the Resistive Switching Filament. Citation Details In-Document Search Title: Physical Description and Experimental...

  16. Extended Abstract Model Formulation and Predictions

    E-Print Network [OSTI]

    , and energy principles supplemented by appropriate geo- metrical and constitutive relations, 3) a description-stirred reactor in which all variables are at most time dependent. The system is broken into three subsystems

  17. CANISTER HANDLING FACILITY DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    J.F. Beesley

    2005-04-21

    The purpose of this facility description document (FDD) is to establish requirements and associated bases that drive the design of the Canister Handling Facility (CHF), which will allow the design effort to proceed to license application. This FDD will be revised at strategic points as the design matures. This FDD identifies the requirements and describes the facility design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This FDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This FDD is part of an iterative design process. It leads the design process with regard to the flowdown of upper tier requirements onto the facility. Knowledge of these requirements is essential in performing the design process. The FDD follows the design with regard to the description of the facility. The description provided in this FDD reflects the current results of the design process.

  18. BDP: BrainSuite Diffusion Pipeline

    E-Print Network [OSTI]

    Leahy, Richard M.

    BDP: BrainSuite Diffusion Pipeline Chitresh Bhushan #12; Quantify microstructural tissue ROI Connectivity ROI Statistics MPRAGE Diffusion #12;Diffusion Pipeline Dicom to NIfTI Co ROIs Custom ROIs #12;Diffusion Pipeline Dicom to NIfTI Co-registration Diffusion Modeling Tractography

  19. Portable vapor diffusion coefficient meter

    DOE Patents [OSTI]

    Ho, Clifford K. (Albuquerque, NM)

    2007-06-12

    An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the time-varying concentration of vapor that has diffused a known distance through the porous media. A data processor contained within the apparatus compares the measured sensor data with analytical predictions of the response curve based on the transient diffusion equation using Fick's Law, iterating on the choice of an effective vapor diffusion coefficient until the difference between the predicted and measured curves is minimized. Optionally, a purge fluid can forced through the porous media, permitting the apparatus to also measure a gas-phase permeability. The apparatus can be made lightweight, self-powered, and portable for use in the field.

  20. Environmental Restoration Site-Specific Plan for the Portsmouth Gaseous Diffusion Plant, FY 93

    SciTech Connect (OSTI)

    Not Available

    1993-01-15

    The purpose of this Site-Specific Plan (SSP) is to describe past, present, and future activities undertaken to implement Environmental Restoration and Waste Management goals at the Portsmouth Gaseous Diffusion Plant (PORTS). The SSP is presented in sections emphasizing Environmental Restoration description of activities, resources, and milestones.

  1. RF test bench automation Description

    E-Print Network [OSTI]

    Dobigeon, Nicolas

    RF test bench automation Description: Callisto would like to implement automated RF test bench. Three RF test benches have to be studied and automated: LNA noise temperature test bench LNA gain phase of the test benches and an implementation of the automation phase. Tasks: Noise temperature

  2. December 3, 2014 Position Description

    E-Print Network [OSTI]

    Das, Suman

    in the pulp and paper industry. A Bachelor's Degree, preferably in Engineering or a technical field; project1 December 3, 2014 Position Description Job Title: Pulp & Paper Energy Efficiency Specialist FLSA: This candidate will be responsible for deploying industrial energy efficiency Best Practices in the pulp

  3. Real Estate Development Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    Real Estate Development Company Description: The largest specialty family footwear retailer America, the Caribbean and South America. Short Project Name: Competitive Analysis - Real Estate Positions to assist them in making recommendations for how our company should develop its real estate strategy

  4. Sustainable Internet Architecture PROJECT DESCRIPTION

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    Sustainable Internet Architecture PROJECT DESCRIPTION 1 Introduction The Internet currently plays of challenges. Numerous research studies on a new Internet architecture (e.g., [16, 37, 48, 54, 55]) have on both the new Internet architecture itself and the underlying problems that motivate it. We look

  5. Syllabus PHYS 441 Course Description

    E-Print Network [OSTI]

    Lathrop, Daniel P.

    Syllabus PHYS 441 Course Description A survey of concepts in particle and nuclear physics. We of the nucleus and the foundation of modern nuclear and particle physics. 2. Nuclear Phenomenology: Properties will learn about particles and forces that make up this universe, modern theories about these forces

  6. Diffuser for augmenting a wind turbine

    DOE Patents [OSTI]

    Foreman, Kenneth M. (North Bellmore, NY); Gilbert, Barry L. (Westbury, NY)

    1984-01-01

    A diffuser for augmenting a wind turbine having means for energizing the boundary layer at several locations along the diffuser walls is improved by the addition of a short collar extending radially outward from the outlet of the diffuser.

  7. Description

    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 like submit theCovalent BondingMeeting | Department|DepartmentalDayWhen

  8. Bayesian Algorithmic Mechanism Design [Extended Abstract

    E-Print Network [OSTI]

    Hartline, Jason D.

    Bayesian Algorithmic Mechanism Design [Extended Abstract] Jason D. Hartline Northwestern, Canada blucier@cs.toronto.edu ABSTRACT The principal problem in algorithmic mechanism design approach for designing incen- tive compatible mechanisms, namely that of Vickrey, Clarke, and Groves

  9. Accelerated molecular dynamics and equation-free methods for simulating diffusion in solids.

    SciTech Connect (OSTI)

    Deng, Jie; Zimmerman, Jonathan A.; Thompson, Aidan Patrick; Brown, William Michael; Plimpton, Steven James; Zhou, Xiao Wang; Wagner, Gregory John; Erickson, Lindsay Crowl

    2011-09-01

    Many of the most important and hardest-to-solve problems related to the synthesis, performance, and aging of materials involve diffusion through the material or along surfaces and interfaces. These diffusion processes are driven by motions at the atomic scale, but traditional atomistic simulation methods such as molecular dynamics are limited to very short timescales on the order of the atomic vibration period (less than a picosecond), while macroscale diffusion takes place over timescales many orders of magnitude larger. We have completed an LDRD project with the goal of developing and implementing new simulation tools to overcome this timescale problem. In particular, we have focused on two main classes of methods: accelerated molecular dynamics methods that seek to extend the timescale attainable in atomistic simulations, and so-called 'equation-free' methods that combine a fine scale atomistic description of a system with a slower, coarse scale description in order to project the system forward over long times.

  10. Prediction of Room Air Diffusion for Reduced Diffuser Flow Rates 

    E-Print Network [OSTI]

    Gangisetti, Kavita

    2011-02-22

    are compared against the measured data. Other important parameters such as diffuser jet inlet angle and radiation effect are also considered on the benchmark case to validate the results and to recommend the best fit parameters for room air simulations...

  11. Classification and Utilization of Abstractions for Optimization

    E-Print Network [OSTI]

    Yi, Qing

    Classification and Utilization of Abstractions for Optimization Dan Quinlan1 , Markus Schordan2.sabjornsen@fys.uio.no Abstract. We define a novel approach to optimize the use of libraries within applications. We propose that library-defined abstractions be clas- sified to support their automated optimization and by leveraging

  12. Hybrid Abstractions that Preserve Timed Languages

    E-Print Network [OSTI]

    Pappas, George J.

    Hybrid Abstractions that Preserve Timed Languages Paulo Tabuada1 and George J. Pappas2 1 Instituto@ee.upenn.edu Abstract. In this paper we consider the problem of extracting an ab- straction from a hybrid control system that determine when trajectories of the original hybrid system can be generated by the abstracted hybrid system

  13. School science project 'demystifies' Portsmouth Gaseous Diffusion...

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

    School science project 'demystifies' Portsmouth Gaseous Diffusion Plant Site School science project 'demystifies' Portsmouth Gaseous Diffusion Plant Site June 2, 2015 - 10:40am...

  14. Independent Oversight Review, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    January 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - January 2013 January 2013 Review of the Portsmouth Gaseous Diffusion Plant Work Planning and Control...

  15. Independent Activity Report, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    Portsmouth Gaseous Diffusion Plant - August 2011 Independent Activity Report, Portsmouth Gaseous Diffusion Plant - August 2011 August 2011 Orientation Visit to the Portsmouth...

  16. A computational study of diffusion in a glass-forming metallic liquid

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

    Wang, T.; Zhang, F.; Yang, L.; Fang, X. W.; Zhou, S. H.; Kramer, M. J.; Wang, C. Z.; Ho, K. M.; Napolitano, R. E.

    2015-06-09

    Liquid phase diffusion plays a critical role in phase transformations (e.g. glass transformation and devitrification) observed in marginal glass forming systems such as Al-Sm. Controlling transformation pathways in such cases requires a comprehensive description of diffusivity, including the associated composition and temperature dependencies. In the computational study reported here, we examine atomic diffusion in Al-Sm liquids using ab initio molecular dynamics (AIMD) and determine the diffusivities of Al and Sm for selected alloy compositions. Non-Arrhenius diffusion behavior is observed in the undercooled liquids with an enhanced local structural ordering. Through assessment of our AIMD result, we construct a general formulationmore »for Al-Sm liquid, involving a diffusion mobility database that includes composition and temperature dependence. A Volmer-Fulcher-Tammann (VFT) equation is adopted for describing the non-Arrhenius behavior observed in the undercooled liquid. The composition dependence of diffusivity is found quite strong, even for the Al-rich region contrary to the sole previous report on this binary system. The model is used in combination with the available thermodynamic database to predict specific diffusivities and compares well with reported experimental data for 0.6 at.% and 5.6 at.% Sm in Al-Sm alloys.« less

  17. CONSENSUS METADATA STANDARD: Identifying Chemical and Physical Variables and Descriptive Metadata

    E-Print Network [OSTI]

    (Attachment 1) 1 The CAS Registry Number and the CAS-9CI name (Chemical Abstracts Service, 9th Collective Nomenclature Standards, General · CAS-9CI (Chemical Abstracts Service, 9th Collective Index NomenclatureCONSENSUS METADATA STANDARD: Identifying Chemical and Physical Variables and Descriptive Metadata

  18. Hot carrier diffusion in graphene

    E-Print Network [OSTI]

    Ruzicka, Brian Andrew; Wang, Shuai; Werake, Lalani Kumari; Weintrub, Ben; Loh, Kian Ping; Zhao, Hui

    2010-11-01

    We report an optical study of charge transport in graphene. Diffusion of hot carriers in epitaxial graphene and reduced graphene oxide samples are studied using an ultrafast pump-probe technique with a high spatial resolution. Spatiotemporal...

  19. University of Memphis University Libraries -Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    the needs of library users and library personnel. The Emerging Technologies Librarian is a memberUniversity of Memphis University Libraries - Position Description Description Updated: November 2012 1 I. DEPARTMENT: University Libraries ­ Library Information Systems II. POSITION: Emerging

  20. OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE

    E-Print Network [OSTI]

    OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE ACl-01 AUTOMATIC APPARATUS FOR CHLORINATING. The system is batteries operated and has an auto power off function. The ACl-01 system is housed in a small................................................................................................................. 2 2. General System Description

  1. Generalized Transformation Design: metrics, speeds, and diffusion

    E-Print Network [OSTI]

    Kinsler, Paul

    2015-01-01

    We show that a unified and maximally generalized approach to spatial transformation design is possible, one that encompasses all second order waves, rays, or diffusion processes in anisotropic media. At the design step it is \\emph{not} necessary to specify the physical process for which a specific device will be -- or is intended to be -- built. The primary approximation required is that the effect of wave impedance is neglected, an attribute that plays no role in ray propagation, and therefore is not relevant for pure ray devices; another constraint is that spatial variation in material parameters may need to be sufficiently small. Device construction relies on how we can re-imagine the abstract mathematical notion of a metric on a manifold as a speed-squared matrix (or a diffusion matrix), a step which also specifies the means by which transformation devices will actually be built. Notably, we can conclude that a generalised ray theory that allows for anisotropic indexes (speeds) generates the same predicti...

  2. Sandia Energy - Online Abstracts and Reports

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

    Abstract (16.KB PDF) Report (2.0MB PDF) "Simulation and Testing of Resin Infusion Manufacturing Processes for Large Composite Structures" D.B. Mastbergen October 2007...

  3. Analysis of complex networks using aggressive abstraction.

    SciTech Connect (OSTI)

    Colbaugh, Richard; Glass, Kristin.; Willard, Gerald

    2008-10-01

    This paper presents a new methodology for analyzing complex networks in which the network of interest is first abstracted to a much simpler (but equivalent) representation, the required analysis is performed using the abstraction, and analytic conclusions are then mapped back to the original network and interpreted there. We begin by identifying a broad and important class of complex networks which admit abstractions that are simultaneously dramatically simplifying and property preserving - we call these aggressive abstractions -- and which can therefore be analyzed using the proposed approach. We then introduce and develop two forms of aggressive abstraction: 1.) finite state abstraction, in which dynamical networks with uncountable state spaces are modeled using finite state systems, and 2.) onedimensional abstraction, whereby high dimensional network dynamics are captured in a meaningful way using a single scalar variable. In each case, the property preserving nature of the abstraction process is rigorously established and efficient algorithms are presented for computing the abstraction. The considerable potential of the proposed approach to complex networks analysis is illustrated through case studies involving vulnerability analysis of technological networks and predictive analysis for social processes.

  4. SEDIMENT DESCRIPTIONS R/V POLAR DUKE

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS R/V POLAR DUKE CRUISES II & VII, 1990 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V POLAR DUKE, CRUISES II & VII UNITED STATES ANTARCTIC PROGRAM 1990 Edited by Steven A. Hovan and Thomas R. Janecek Sediment Descriptions Xinlan Liu Technical Assistant Carl Painter

  5. SEDIMENT DESCRIPTIONS R/V POLAR DUKE

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS for R/V POLAR DUKE CRUISE II, 1992 to the ANTARCTIC PENINSULA #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V POLAR DUKE, UNITED STATES ANTARCTIC PROGRAM CRUISE II, 1992 TO THE ANTARCTIC PENINSULA Edited by Thomas R. Janecek Sediment Descriptions* Matthew Curren (Antarctic Marine

  6. ELECTRICAL SUPPORT SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    S. Roy

    2004-06-24

    The purpose of this revision of the System Design Description (SDD) is to establish requirements that drive the design of the electrical support system and their bases to allow the design effort to proceed to License Application. This SDD is a living document that will be revised at strategic points as the design matures over time. This SDD identifies the requirements and describes the system design as they exist at this time, with emphasis on those attributes of the design provided to meet the requirements. This SDD has been developed to be an engineering tool for design control. Accordingly, the primary audience/users are design engineers. This type of SDD both ''leads'' and ''trails'' the design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD trails the design with regard to the description of the system. The description provided in the SDD is a reflection of the results of the design process to date. Functional and operational requirements applicable to electrical support systems are obtained from the ''Project Functional and Operational Requirements'' (F&OR) (Siddoway 2003). Other requirements to support the design process have been taken from higher-level requirements documents such as the ''Project Design Criteria Document'' (PDC) (Doraswamy 2004), and fire hazards analyses. The above-mentioned low-level documents address ''Project Requirements Document'' (PRD) (Canon and Leitner 2003) requirements. This SDD contains several appendices that include supporting information. Appendix B lists key system charts, diagrams, drawings, and lists, and Appendix C includes a list of system procedures.

  7. ELECTRICAL POWER SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    M. Maniyar

    2004-06-22

    The purpose of this revision of the System Description Document (SDD) is to establish requirements that drive the design of the electrical power system and their bases to allow the design effort to proceed to License Application. This SDD is a living document that will be revised at strategic points as the design matures over time. This SDD identifies the requirements and describes the system design as they exist at this time, with emphasis on those attributes of the design provided to meet the requirements. This SDD has been developed to be an engineering tool for design control. Accordingly, the primary audience are design engineers. This type of SDD leads and follows the design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential to performing the design process. This SDD follows the design with regard to the description of the system. The description provided in the SDD is a reflection of the results of the design process to date. Functional and operational requirements applicable to this system are obtained from ''Project Functional and Operational Requirements'' (F&OR) (Siddoway, 2003). Other requirements to support the design process have been taken from higher level requirements documents such as ''Project Design Criteria Document'' (PDC) (Doraswamy 2004), the fire hazards analyses, and the preclosure safety analysis. The above mentioned low-level documents address ''Project Requirements Document'' (PRD) (Canori and Leitner 2003) requirements. This SDD includes several appendices with supporting information. Appendix B lists key system charts, diagrams, drawings, and lists; and Appendix C is a list of system procedures.

  8. SNF AGING SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    L.L. Swanson

    2005-04-06

    The purpose of this system description document (SDD) is to establish requirements that drive the design of the spent nuclear fuel (SNF) aging system and associated bases, which will allow the design effort to proceed. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD follows the design with regard to the description of the system. The description provided in the SDD reflects the current results of the design process. Throughout this SDD, the term aging cask applies to vertical site-specific casks and to horizontal aging modules. The term overpack is a vertical site-specific cask that contains a dual-purpose canister (DPC) or a disposable canister. Functional and operational requirements applicable to this system were obtained from ''Project Functional and Operational Requirements'' (F&OR) (Curry 2004 [DIRS 170557]). Other requirements that support the design process were taken from documents such as ''Project Design Criteria Document'' (PDC) (BSC 2004 [DES 171599]), ''Site Fire Hazards Analyses'' (BSC 2005 [DIRS 172174]), and ''Nuclear Safety Design Bases for License Application'' (BSC 2005 [DIRS 171512]). The documents address requirements in the ''Project Requirements Document'' (PRD) (Canori and Leitner 2003 [DIRS 166275]). This SDD includes several appendices. Appendix A is a Glossary; Appendix B is a list of key system charts, diagrams, drawings, lists and additional supporting information; and Appendix C is a list of procedures that will be used to operate the system.

  9. Descriptive Model of Generic WAMS

    SciTech Connect (OSTI)

    Hauer, John F.; DeSteese, John G.

    2007-06-01

    The Department of Energy’s (DOE) Transmission Reliability Program is supporting the research, deployment, and demonstration of various wide area measurement system (WAMS) technologies to enhance the reliability of the Nation’s electrical power grid. Pacific Northwest National Laboratory (PNNL) was tasked by the DOE National SCADA Test Bed Program to conduct a study of WAMS security. This report represents achievement of the milestone to develop a generic WAMS model description that will provide a basis for the security analysis planned in the next phase of this study.

  10. EGS Abstract for Nice, April, 1998

    E-Print Network [OSTI]

    EGS Abstract for Nice, April, 1998 LUNAR STRUCTURE AND CLEMENTINE DATA : TEST OF A TECTONIC. Philippe Lognonn'e 4. none 5. Invited talk Abstracts to be submitted on or before December 15, 1997 to EGS­4709 Email: EGS@Copernicus.org http://www.copernicus.org/EGS/EGS.html #12;

  11. CO2 diffusion in polar ice: observations from naturally formed CO2 spikes in the Siple Dome (Antarctica) ice core

    E-Print Network [OSTI]

    Raggio Parkway, Reno, Nevada 89512-1095, USA ABSTRACT. One common assumption in interpreting ice-core CO2 records is that diffusion in the ice does not affect the concentration profile. However, this assumption/Ar and Kr/Ar), electrical conductivity and Ca2+ ion concentrations to show that substantial CO2 diffusion

  12. Puzzling Phenomenon of Diffuse Interstellar Bands

    E-Print Network [OSTI]

    B. Wszolek

    2007-12-10

    The discovery of the first diffuse interstellar bands (DIBs) dates back to the pioneering years of stellar spectroscopy. Today, we know about 300 absorption structures of this kind. There exists a great variety of the profiles and intensities of DIBs, so they can not be readily described, classified or characterized. To the present day no reliable identification of the DIBs' carriers has been found. Many carriers of DIBs have been proposed over the years. They ranged from dust grains to free molecules of different kinds, and to more exotic specimens, like hydrogen negative ion. Unfortunately, none of them is responsible for observed DIBs. Furthermore, it was shown that a single carrier cannot be responsible for all known DIBs. It is hard to estimate how many carriers can participate in producing these bands. The problem is further complicated by the fact that to this day it is still impossible to find any laboratory spectrum of any substance which would match the astrophysical spectra. Here, a historical outline concerning DIBs is followed by a brief description of their whole population. Then, a special attention is focused on the procedures trying to extract spectroscopic families within the set of all known DIBs.

  13. Linear diffusion into a Faraday cage.

    SciTech Connect (OSTI)

    Warne, Larry Kevin; Lin, Yau Tang; Merewether, Kimball O.; Chen, Kenneth C.

    2011-11-01

    Linear lightning diffusion into a Faraday cage is studied. An early-time integral valid for large ratios of enclosure size to enclosure thickness and small relative permeability ({mu}/{mu}{sub 0} {le} 10) is used for this study. Existing solutions for nearby lightning impulse responses of electrically thick-wall enclosures are refined and extended to calculate the nearby lightning magnetic field (H) and time-derivative magnetic field (HDOT) inside enclosures of varying thickness caused by a decaying exponential excitation. For a direct strike scenario, the early-time integral for a worst-case line source outside the enclosure caused by an impulse is simplified and numerically integrated to give the interior H and HDOT at the location closest to the source as well as a function of distance from the source. H and HDOT enclosure response functions for decaying exponentials are considered for an enclosure wall of any thickness. Simple formulas are derived to provide a description of enclosure interior H and HDOT as well. Direct strike voltage and current bounds for a single-turn optimally-coupled loop for all three waveforms are also given.

  14. 1990 fuel cell seminar: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1990-12-31

    This volume contains author prepared short resumes of the presentations at the 1990 Fuel Cell Seminar held November 25-28, 1990 in Phoenix, Arizona. Contained herein are 134 short descriptions organized into topic areas entitled An Environmental Overview, Transportation Applications, Technology Advancements for Molten Carbonate Fuel Cells, Technology Advancements for Solid Fuel Cells, Component Technologies and Systems Analysis, Stationary Power Applications, Marine and Space Applications, Technology Advancements for Acid Type Fuel Cells, and Technology Advancement for Solid Oxide Fuel Cells.

  15. Description of the Portsmouth Gas Centrifuge Enrichment Plant

    SciTech Connect (OSTI)

    Arthur, W.B.

    1980-12-16

    The Portsmouth Gas Centrifuge Enrichment Plant (GCEP) will be located at the site of the Portsmouth Gaseous Diffusion Plant in Piketon, Ohio. The purpose of the facility is to provide enriching services for the production of low assay enriched uranium for civilian nuclear power reactors. The construction and operation of the GCEP is administered by the US Department of Energy. The facility will be operated under contract from the US Government. Control of the GCEP rests solely with the US Government, which holds and controls access to the technology. Construction of GCEP is expected to be completed in the mid-1990's. Many facility design and operating procedures are subject to change. Nonetheless, the design described in this report does reflect current thinking. Descriptions of the general facility and major buildings such as the process buildings, feed and withdrawal building, cylinder storage and transfer, recycle/assembly building, and a summary of the centrifuge uranium enriching process are provided in this report.

  16. Introduction Epidemic virus diffusion: models Epidemic algorithms Gossip algorithms Epidemic Information Diffusion on

    E-Print Network [OSTI]

    Ricci, Laura

    Introduction Epidemic virus diffusion: models Epidemic algorithms Gossip algorithms EpidemicD in Computer Science #12;Introduction Epidemic virus diffusion: models Epidemic algorithms Gossip algorithms Outline 1 Introduction 2 Epidemic virus diffusion: models 3 Epidemic algorithms 4 Gossip algorithms #12

  17. THE 3RD SYMPOSIUM ON ANALYSIS AND PDES ABSTRACTS ...

    E-Print Network [OSTI]

    2007-05-18

    May 27, 2007 ... Lectures: 1. Introduction to Linear and Nonlinear Diffusion. ... plasma physics. ... Panagiota Daskalopoulos, Columbia University, New York, NY.

  18. DOE-NABIR Pi Workshop: Abstracts

    E-Print Network [OSTI]

    Various

    2003-01-01

    DOE-NABIR PI WORKSHOP: Abstracts March 17–19, 2003to radionuclides of interest to DOE and the role(s) of these80 iv Introduction DOE–NABIR PI Workshop March 17–19, 2003

  19. DOE-NABIR PI Workshop: Abstracts

    E-Print Network [OSTI]

    Hawkes editor, Dan

    2002-01-01

    DOE-NABIR PI WORKSHOP: Abstracts March 18–20, 2002technologies at EMSL and other DOE sites (Zachara, Fendorf)sediments throughout the DOE complex. Plutonium is generally

  20. Transformations of Conditional Rewrite Systems (Extended Abstract)

    E-Print Network [OSTI]

    Gramlich, Bernhard

    Transformations of Conditional Rewrite Systems Revisited (Extended Abstract) Karl Gmeiner and Bernhard Gramlich TU Wien, Austria, {gmeiner,gramlich}@logic.at We revisit known transformations for describing and classifying such transformations, discuss the major problems arising, pro- vide simplified

  1. Pulmonary toxicology of respirable particles. [Lead abstract

    SciTech Connect (OSTI)

    Sanders, C.L.; Cross, F.T.; Dagle, G.E.; Mahaffey, J.A.

    1980-09-01

    Separate abstracts were prepared for the 44 papers presented in these proceedings. The last paper (Stannard) in the proceedings is an historical review of the field of inhalation toxicology and is not included in the analytics. (DS)

  2. Intracellular facilitated diffusion: searchers, crowders and blockers

    E-Print Network [OSTI]

    C. A. Brackley; M. E. Cates; D. Marenduzzo

    2013-09-04

    In bacteria, regulatory proteins search for a specific DNA binding target via "facilitated diffusion": a series of rounds of 3D diffusion in the cytoplasm, and 1D linear diffusion along the DNA contour. Using large scale Brownian dynamics simulations we find that each of these steps is affected differently by crowding proteins, which can either be bound to the DNA acting as a road block to the 1D diffusion, or freely diffusing in the cytoplasm. Macromolecular crowding can strongly affect mechanistic features such as the balance between 3D and 1D diffusion, but leads to surprising robustness of the total search time.

  3. The tropical double description method

    E-Print Network [OSTI]

    Allamigeon, Xavier; Goubault, Eric

    2010-01-01

    We develop a tropical analogue of the classical double description method allowing one to compute an internal representation (in terms of vertices) of a polyhedron defined externally (by inequalities). The heart of the tropical algorithm is a characterization of the extreme points of a polyhedron in terms of a system of constraints which define it. We show that checking the extremality of a point reduces to checking whether there is only one minimal strongly connected component in an hypergraph. The latter problem can be solved in almost linear time, which allows us to eliminate quickly redundant generators. We report extensive tests (including benchmarks from an application to static analysis) showing that the method outperforms experimentally the previous ones by orders of magnitude. The present tools also lead to worst case bounds which improve the ones provided by previous methods.

  4. Smithsonian/NASA ADS Physics/Geophysics Abstract Service Find Similar Abstracts (with default settings below)

    E-Print Network [OSTI]

    Mojahedi, Mohammad

    Smithsonian/NASA ADS Physics/Geophysics Abstract Service · Find Similar Abstracts (with default | Query Form | Preferences | HELP | FAQ Physics/Geophysics arXiv e-prints Send Query Reset #12;

  5. Photoinduced Hydrogen Abstraction from Phenols by Aromatic Ketones. A New Mechanism for Hydrogen Abstraction by

    E-Print Network [OSTI]

    Leigh, William J.

    Photoinduced Hydrogen Abstraction from Phenols by Aromatic Ketones. A New Mechanism for Hydrogen carried out of the kinetics of inter- and intramolecular phenolic hydrogen abstraction phenolic hydrogen, which yields the corresponding phenoxyl-hemipinacol biradical. The biradicals have also

  6. By April 15 Submit Abstract (electronically) Abstract Payment Form (with $35 check or credit card)

    E-Print Network [OSTI]

    Gadsby, David

    DEADLINES By April 15 Submit Abstract (electronically) Abstract Payment Form (with $35 check Rental Form (with check or credit card) Submit Late Abstract and Form (with $35 check or credit card.sgpweb.org For overnight delivery: Society of General Physiologists 35 Cumloden Drive Falmouth, MA 02540 #12;

  7. Flame Height Measurement of Laminar Inverse Diffusion Flames

    E-Print Network [OSTI]

    Mikofski, Mark A.; Williams, Timothy C.; Shaddix, Christopher R.; Blevins, Linda G.

    2006-01-01

    Flame Height Measurement of Laminar Inverse Diffusion Flamesinverse diffusion flame, laminar, flame height, OH, laserair and methane-air laminar inverse diffusion flames were

  8. Synergistic diffuser/heat-exchanger design

    E-Print Network [OSTI]

    Lazzara, David S. (David Sergio), 1980-

    2004-01-01

    The theoretical and numerical evaluation of synergistic diffusing heat-exchanger design is presented. Motivation for this development is based on current diffuser and heat-exchange technologies in cogeneration plants, which ...

  9. MICROFLUIDIC CONTROL OF STEM CELL DIFFUSIBLE SIGNALING

    E-Print Network [OSTI]

    Voldman, Joel

    MICROFLUIDIC CONTROL OF STEM CELL DIFFUSIBLE SIGNALING Katarina Blagovi, Lily Y. Kim, Alison M cell differentiation. KEYWORDS: Embryonic stem cells, microfluidic perfusion, diffusible signaling; they secrete molecules to which they respond. Microfluidics offers a potential solution to this challenge

  10. CONSIDERATIONS ON A THEORY OF DESCRIPTIVE ACTIVITY

    E-Print Network [OSTI]

    Gubrium, Jaber F.; Buckholdt, David R.; Lynott, Robert

    1982-04-01

    OF DESCRIPTIVE ACTIVITY Jaber F. Gubrium Marquette University David R. Buckholdt Marquette University Robert]. Lynott Loyola University Mid-American Review of Sociology, 1982, Vol. VII, No.1 :17-35 From a working definition of description, the meaning... science as well as the variety of formal organizations whose members are obliged to describe people in some way. Among the latter organizations is the full range of human service insti­ tutions where people-descriptions are evaluated both internally...

  11. Machinist Pipeline/Apprentice Program Program Description

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

    Machinist PipelineApprentice Program Program Description The Machinist Pipeline Program was created by the Prototype Fabrication Division to fill a critical need for skilled...

  12. Investigation and Analytical Description of Acoustic Production...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Investigation and Analytical Description of Acoustic Production by Magneto-Acoustic Mixing Technology Citation Details In-Document Search This content will become...

  13. Heat Hyperbolic Diffusion in Planck Gas

    E-Print Network [OSTI]

    Miroslaw Kozlowski; Janina Marciak-Kozlowska

    2006-07-06

    In this paper we investigate the diffusion of the thermal pulse in Planck Gas. We show that the Fourier diffusion equation gives the speed of diffusion, v > c and breaks the causality of the thermal processes in Planck gas .For hyperbolic heat transport v

  14. Diffusion Tubes for Ambient NO2 Monitoring

    E-Print Network [OSTI]

    Short, Daniel

    2 Monitoring: Practical Guidance AEA Energy & Environment iii Foreword Palmes-type diffusion tubesDiffusion Tubes for Ambient NO2 Monitoring: Practical Guidance for Laboratories and Users Report Monitoring: Practical Guidance AEA/ENV/R/2504 ­ Issue 1a Title Diffusion Tubes for Ambient NO2 Monitoring

  15. Content of system design descriptions

    SciTech Connect (OSTI)

    NONE

    1998-10-01

    A System Design Description (SDD) describes the requirements and features of a system. This standard provides guidance on the expected technical content of SDDs. The need for such a standard was recognized during efforts to develop SDDs for safety systems at DOE Hazard Category 2 nonreactor nuclear facilities. Existing guidance related to the corresponding documents in other industries is generally not suitable to meet the needs of DOE nuclear facilities. Across the DOE complex, different contractors have guidance documents, but they vary widely from site to site. While such guidance documents are valuable, no single guidance document has all the attributes that DOE considers important, including a reasonable degree of consistency or standardization. This standard is a consolidation of the best of the existing guidance. This standard has been developed with a technical content and level of detail intended to be most applicable to safety systems at DOE Hazard Category 2 nonreactor nuclear facilities. Notwithstanding that primary intent, this standard is recommended for other systems at such facilities, especially those that are important to achieving the programmatic mission of the facility. In addition, application of this standard should be considered for systems at other facilities, including non-nuclear facilities, on the basis that SDDs may be beneficial and cost-effective.

  16. Nuclear criticality safety evaluation of Spray Booth Operations in X-705, Portsmouth Gaseous Diffusion Plant

    SciTech Connect (OSTI)

    Sheaffer, M.K.; Keeton, S.C.

    1993-09-20

    This report evaluates nuclear criticality safety for Spray Booth Operations in the Decontamination and Recovery Facility, X-705, at the Portsmouth Gaseous Diffusion Plant. A general description of current procedures and related hardware/equipment is presented. Control parameters relevant to nuclear criticality safety are explained, and a consolidated listing of administrative controls and safety systems is developed. Based on compliance with DOE Orders and MMES practices, the overall operation is evaluated, and recommendations for enhanced safety are suggested.

  17. ABSTRACT OF THESIS LINE ASSOCIATIVE REGISTERS

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    ABSTRACT OF THESIS LINE ASSOCIATIVE REGISTERS As technological advances have improved processor. This thesis takes the approach of trying to create a new memory access model that is more efficient and simple ASSOCIATIVE REGISTERS By Krishna Melarkode Dr. Henry G. Dietz (Director of Thesis) Dr. Yu Ming Zhang (Director

  18. Virtual Sensors: Abstracting Data from Physical Sensors

    E-Print Network [OSTI]

    Julien, Christine

    of heterogeneous physical sensors. For example, on an intelligent construction site, users may desire the cranesVirtual Sensors: Abstracting Data from Physical Sensors TR-UTEDGE-2006-001 Sanem Kabadayi Adam Pridgen Christine Julien © Copyright 2006 The University of Texas at Austin #12;Virtual Sensors

  19. Goldschmidt Conference Abstracts 2005 Mineral Surface Reactivity

    E-Print Network [OSTI]

    Sparks, Donald L.

    Goldschmidt Conference Abstracts 2005 Mineral Surface Reactivity A492 "Hydration" of rhyolitic of Tennessee, Knoxville, Tennessee 37996, USA 2 Chemical Sciences Division, MS 6110, P.O. Box 2008, Bldg. 4500S, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6110, USA 3 Chemical Sciences Division, MS

  20. Static single information form for abstract compilation

    E-Print Network [OSTI]

    Robbiano, Lorenzo

    Static single information form for abstract compilation Davide Ancona and Giovanni Lagorio DIBRIS information (SSI), an extension of SSA proposed in literature and adopted by some compilers, to allow integrated with ab- stract compilation, our approach to static type analysis. In particular, we define

  1. Natural radiation environment III. [Lead Abstract

    SciTech Connect (OSTI)

    Gesell, T.F.; Lowder, W.M.

    1980-01-01

    Separate abstracts were prepared for the 52 research papers presented at this symposium in April 1978. The major topics in this volume deal with penetrating radiation measurements, radiation surveys and population exposure, radioactivity in the indoor environment, and technologically enhanced natural radioactivity. (KRM)

  2. Market User Interface Design [Extended Abstract

    E-Print Network [OSTI]

    Chen, Yiling

    Market User Interface Design [Extended Abstract] Sven Seuken1 , David C. Parkes1 , Eric Horvitz2, {horvitz,kamalj,marycz,desney}@microsoft.com 1 Introduction: Market Design & UI Design Electronic markets associated with decision making in complex environments [1], but until now, the market design community has

  3. AbstractThe satellite-borne

    E-Print Network [OSTI]

    Kansas, University of

    , the contributions from the vertical components of wind vectors are small and can therefore be ignoredAbstract­The satellite-borne Scanning for a Satellite Radar Wind Sounder (RAWS) RK Moore, B. Beh Radar Wind Sounder (RAWS) is a proposed radar capable of measuring wind alofi using Doppler shifts

  4. Abstract interpretation from a denotational semantics

    E-Print Network [OSTI]

    Schmidt, David A.

    (x) if x pos? A: abstractly interpret input domain Int by Sign = {neg, zero, pos, any}: readSign(x) x = succ(x) if (filterNeg(x): x = negate (x)) (filterNonNeg(x): x = succ(x)) fi writeSign(x) where succ (pos) = pos succ (zero) = pos succ

  5. Briefly Noted Automatic Indexing and Abstracting of

    E-Print Network [OSTI]

    . The TIPSTER SUMMAC Text Summarization Evaluation, Final Report. The MITRE Corporation, report number MTR 98W abstracting and indexing has received re- newed interest and a number of promising approaches have emerged to the final evaluation of the method. The system developed by the author combines symbolic techniques

  6. Transforming and Refining Abstract Constraint Specifications

    E-Print Network [OSTI]

    Walsh, Toby

    Transforming and Refining Abstract Constraint Specifications Alan M. Frisch1 , Brahim Hnich2 , Ian choose model transformations to reduce greatly the amount of effort that is required to solve a problem by systematic search. It is a consid- erable challenge to automate such transformations. A problem may be viewed

  7. Stone Age Distributed Computing (Extended Abstract)

    E-Print Network [OSTI]

    Stone Age Distributed Computing (Extended Abstract) Yuval Emek Distributed Computing Group ETH Zurich, Switzerland yemek@ethz.ch Roger Wattenhofer Distributed Computing Group ETH Zurich, Switzerland and cellular automata is suitable for applying the distributed computing lens to the study of networks of sub

  8. Abstract polymer models with general pair interactions

    E-Print Network [OSTI]

    Aldo Procacci

    2008-11-26

    A convergence criterion of cluster expansion is presented in the case of an abstract polymer system with general pair interactions (i.e. not necessarily hard core or repulsive). As a concrete example, the low temperature disordered phase of the BEG model with infinite range interactions, decaying polynomially as $1/r^{d+\\lambda}$ with $\\lambda>0$, is studied.

  9. Configurational diffusion of coal macromolecules

    SciTech Connect (OSTI)

    Guin, J.A.; Curtis, C.W.; Tarrer, A.R.; Kim, S.; Hwang, D.; Chen, C.C.; Chiou, Z.

    1991-01-01

    The objective of our research was to obtain fundamental information regarding the functional dependence of the diffusion coefficient of coal molecules on the ratio of molecule to pore diameter. That is, the objective of our study was to examine the effect of molecule size and configuration on hindered diffusion of coal macromolecules through as porous medium. To best accomplish this task, we circumvented the complexities of an actual porous catalyst by using a well defined porous matrix with uniform capillaric pores, i.e., a track-etched membrane. In this way, useful information was obtained regarding the relationship of molecular size and configuration on the diffusion rate of coal derived macromolecules through a pore structure with known geometry. Similar studies were performed using a pellet formed of porous alumina, to provide a link between the idealized membranes and the actual complex pore structure of real catalyst extrudates. The fundamental information from our study will be useful toward the tailoring of catalysts to minimize diffusional influences and thereby increase coal conversion and selectivity for desirable products. (VC)

  10. IEEE Trans. Magn., vol. 38, pp. 3324-3326, 2002 1 Abstract--Conventional analytical description of axial

    E-Print Network [OSTI]

    Paperno, Eugene

    --Amorphous Metglas material, axial (longitudinal) shielding equation, demagnetizing factor, cylindrical shields

  11. University of Memphis University Libraries Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    . CLASSIFICATION: Faculty IV. NAME OF INCUMBENT: Vacant V. POSITION No.: 2260 VI. JOB PURPOSE: This position/her responsibilities focus on removing barriers to information that are created when the library user needs informationUniversity of Memphis University Libraries Position Description Description last updated: August

  12. University of Memphis University Libraries -Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    1 I. DEPARTMENT: University Libraries II. POSITION: ILS Librarian III. CLASSIFICATION: Faculty IV strategies to maximize the effective use of the various components of the ILMS to meet the needs of libraryUniversity of Memphis University Libraries - Position Description Description Updated: August 2010

  13. WASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED,

    E-Print Network [OSTI]

    reflect avoided waste disposal costs and lower material purchase costs ($6000) Hydraulic Oil ProductWASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED, REUSED, RECYCLED OR CONSERVED IN 2002 WASTE TYPE DESCRIPTION DETAILS * Electrophoretic Mini-Gels Microscale Chemical Use 2,200 Hazardous Waste - Lab Pack $10

  14. Multiple description coding by successive quantization

    E-Print Network [OSTI]

    Linder, Tamás

    is with the Department of Electrical and Computer Engi- neering, University of Toronto, Toronto, Ontario M5S 3G4, Canada for transmission over a diversity communication system with several channels. In this technique, the source-description quantization problem, source samples are quantized into two descriptions with rates R1 and R2, respectively

  15. Diffusion approximations to the chemical master equation only have a consistent stochastic thermodynamics at chemical equilibrium

    E-Print Network [OSTI]

    Horowitz, Jordan M

    2015-01-01

    The stochastic thermodynamics of a dilute, well-stirred mixture of chemically-reacting species is built on the stochastic trajectories of reaction events obtained from the Chemical Master Equation. However, when the molecular populations are large, the discrete Chemical Master Equation can be approximated with a continuous diffusion process, like the Chemical Langevin Equation or Low Noise Approximation. In this paper, we investigate to what extent these diffusion approximations inherit the stochastic thermodynamics of the Chemical Master Equation. We find that a stochastic-thermodynamic description is only valid at a detailed-balanced, equilibrium steady state. Away from equilibrium, where there is no consistent stochastic thermodynamics, we show that one can still use the diffusive solutions to approximate the underlying thermodynamics of the Chemical Master Equation.

  16. Quantifying protein diffusion and capture on filaments

    E-Print Network [OSTI]

    Emanuel Reithmann; Louis Reese; Erwin Frey

    2015-03-03

    The functional relevance of regulating proteins is often limited to specific binding sites such as the ends of microtubules or actin-filaments. A localization of proteins on these functional sites is of great importance. We present a quantitative theory for a diffusion and capture process, where proteins diffuse on a filament and stop diffusing when reaching the filament's end. It is found that end-association after one-dimensional diffusion is the main source for tip-localization of such proteins. As a consequence, diffusion and capture is highly efficient in enhancing the reaction velocity of enzymatic reactions, where proteins and filament ends are to each other as enzyme and substrate. We show that the reaction velocity can effectively be described within a Michaelis-Menten framework. Together one-dimensional diffusion and capture beats the (three-dimensional) Smoluchowski diffusion limit for the rate of protein association to filament ends.

  17. Quantifying protein diffusion and capture on filaments

    E-Print Network [OSTI]

    Reithmann, Emanuel; Frey, Erwin

    2015-01-01

    The functional relevance of regulating proteins is often limited to specific binding sites such as the ends of microtubules or actin-filaments. A localization of proteins on these functional sites is of great importance. We present a quantitative theory for a diffusion and capture process, where proteins diffuse on a filament and stop diffusing when reaching the filament's end. It is found that end-association after one-dimensional diffusion is the main source for tip-localization of such proteins. As a consequence, diffusion and capture is highly efficient in enhancing the reaction velocity of enzymatic reactions, where proteins and filament ends are to each other as enzyme and substrate. We show that the reaction velocity can effectively be described within a Michaelis-Menten framework. Together one-dimensional diffusion and capture beats the (three-dimensional) Smoluchowski diffusion limit for the rate of protein association to filament ends.

  18. MODEL OF DIFFUSERS / PERMEATORS FOR HYDROGEN PROCESSING

    SciTech Connect (OSTI)

    Hang, T; William Jacobs, W

    2007-08-27

    Palladium-silver (Pd-Ag) diffusers are mainstays of hydrogen processing. Diffusers separate hydrogen from inert species such as nitrogen, argon or helium. The tubing becomes permeable to hydrogen when heated to more than 250 C and a differential pressure is created across the membrane. The hydrogen diffuses better at higher temperatures. Experimental or experiential results have been the basis for determining or predicting a diffuser's performance. However, the process can be mathematically modeled, and comparison to experimental or other operating data can be utilized to improve the fit of the model. A reliable model-based diffuser system design is the goal which will have impacts on tritium and hydrogen processing. A computer model has been developed to solve the differential equations for diffusion given the operating boundary conditions. The model was compared to operating data for a low pressure diffuser system. The modeling approach and the results are presented in this paper.

  19. Automatic identification of abstract online groups

    DOE Patents [OSTI]

    Engel, David W; Gregory, Michelle L; Bell, Eric B; Cowell, Andrew J; Piatt, Andrew W

    2014-04-15

    Online abstract groups, in which members aren't explicitly connected, can be automatically identified by computer-implemented methods. The methods involve harvesting records from social media and extracting content-based and structure-based features from each record. Each record includes a social-media posting and is associated with one or more entities. Each feature is stored on a data storage device and includes a computer-readable representation of an attribute of one or more records. The methods further involve grouping records into record groups according to the features of each record. Further still the methods involve calculating an n-dimensional surface representing each record group and defining an outlier as a record having feature-based distances measured from every n-dimensional surface that exceed a threshold value. Each of the n-dimensional surfaces is described by a footprint that characterizes the respective record group as an online abstract group.

  20. An asixymmetric diffusion experiment for the determination of diffusion and sorption coefficients of rock samples

    SciTech Connect (OSTI)

    Takeda, M.; Hiratsuka, T.; Ito, K.; Finsterle, S.

    2011-02-01

    Diffusion anisotropy is a critical property in predicting migration of substances in sedimentary formations with very low permeability. The diffusion anisotropy of sedimentary rocks has been evaluated mainly from laboratory diffusion experiments, in which the directional diffusivities are separately estimated by through-diffusion experiments using different rock samples, or concurrently by in-diffusion experiments in which only the tracer profile in a rock block is measured. To estimate the diffusion anisotropy from a single rock sample, this study proposes an axisymmetric diffusion test, in which tracer diffuses between a cylindrical rock sample and a surrounding solution reservoir. The tracer diffusion between the sample and reservoir can be monitored from the reservoir tracer concentrations, and the tracer profile could also be obtained after dismantling the sample. Semi-analytical solutions are derived for tracer concentrations in both the reservoir and sample, accounting for an anisotropic diffusion tensor of rank two as well as the dilution effects from sampling and replacement of reservoir solution. The transient and steady-state analyses were examined experimentally and numerically for different experimental configurations, but without the need for tracer profiling. These experimental configurations are tested for in- and out-diffusion experiments using Koetoi and Wakkanai mudstones and Shirahama sandstone, and are scrutinized by a numerical approach to identify favorable conditions for parameter estimation. The analysis reveals the difficulty in estimating diffusion anisotropy; test configurations are proposed for enhanced identifiability of diffusion anisotropy. Moreover, it is demonstrated that the axisymmetric diffusion test is efficient in obtaining the sorption parameter from both steady-state and transient data, and in determining the effective diffusion coefficient if isotropic diffusion is assumed. Moreover, measuring reservoir concentrations in an axisymmetric diffusion experiment coupled with tracer profiling may be a promising approach to estimate of diffusion anisotropy of sedimentary rocks.

  1. Internal and External Logics of Abstract Interpretations

    E-Print Network [OSTI]

    Schmidt, David A.

    := succ(x) write(x) Q: Is output pos? A: abstractly interpret Int by Sign = {neg, zero, pos, any, none} pos zero none any neg P(Int) Sign Standard, collecting inter- pretation: f : P(Int) P(Int): isPos: isPos (pos) = pos isPos (neg) = none isPos (any) = pos, etc. succ (pos) = pos succ (zero) = pos succ

  2. Extracting program logics from abstract interpretations

    E-Print Network [OSTI]

    Schmidt, David A.

    Int(x) if x>0 : x:= pred(x) x:= succ(x) writeInt(x) Q: Is output pos? A: abstractly interpret domain Int by Sign = {neg, zero, pos, any}: readSign(x) if isPos(x): x:= pred (x) x:= succ(x) writeSign(x) where succ (pos) = pos succ (zero) = pos succ (neg) = any succ (any) = any and pred (neg) = neg pred (zero) = neg

  3. SATURATED ZONE FLOW AND TRANSPORT MODEL ABSTRACTION

    SciTech Connect (OSTI)

    B.W. ARNOLD

    2004-10-27

    The purpose of the saturated zone (SZ) flow and transport model abstraction task is to provide radionuclide-transport simulation results for use in the total system performance assessment (TSPA) for license application (LA) calculations. This task includes assessment of uncertainty in parameters that pertain to both groundwater flow and radionuclide transport in the models used for this purpose. This model report documents the following: (1) The SZ transport abstraction model, which consists of a set of radionuclide breakthrough curves at the accessible environment for use in the TSPA-LA simulations of radionuclide releases into the biosphere. These radionuclide breakthrough curves contain information on radionuclide-transport times through the SZ. (2) The SZ one-dimensional (I-D) transport model, which is incorporated in the TSPA-LA model to simulate the transport, decay, and ingrowth of radionuclide decay chains in the SZ. (3) The analysis of uncertainty in groundwater-flow and radionuclide-transport input parameters for the SZ transport abstraction model and the SZ 1-D transport model. (4) The analysis of the background concentration of alpha-emitting species in the groundwater of the SZ.

  4. Agent-based semantic composition of Web services using distributed description logics

    E-Print Network [OSTI]

    Pellier, Damien

    Agent-based semantic composition of Web services using distributed description logics Mourad Ouziri.ouziri,damien.pellier}@parisdescartes.fr Abstract. An important research challenge consists in composing web services in an automatic be processed by composing sev- eral services. Each web service is often written by different designers

  5. Investigating the Applicability of Architecture Description in Configuration Management and Software Deployment

    E-Print Network [OSTI]

    Wolf, Alexander L.

    potentially be used as an organizing abstraction for many of the activities in the software life cycleInvestigating the Applicability of Architecture Description in Configuration Management architecture has traditionally been concerned with high­level design. In particular, a variety of architecture

  6. Investigating the Applicability of Architecture Description in Configuration Management and Software Deployment

    E-Print Network [OSTI]

    van der Hoek, André

    potentially be used as an organizing abstraction for many of the activities in the software life cycleInvestigating the Applicability of Architecture Description in Configuration Management architecture has traditionally been concerned with high-level design. In particular, a variety of architecture

  7. Kenneth J. Turner. Realising Architectural Feature Descriptions using LOTOS. Parallel Computers, Networks and Distributed Systems (Calculateurs

    E-Print Network [OSTI]

    Turner, Ken

    Computing Science and Mathematics, University of Stirling Stirling FK9 4LA, Scotland kjt@cs.stir.ac.uk ABSTRACT. ANISE (Architectural Notions In Service Engineering) can be used to describe a range ´E. ANISE (Architectural Notions In Service Engineering) est utilis´e pour la description d'une gamme

  8. A Formal Description of Arabic Syntax in Definite Clause Grammar Hisham E1-SllisMny

    E-Print Network [OSTI]

    Center, 56, Gameaat El-Doual EI-Arabeya St. Mohandesseen, Cairo, Egypt Abstract Arabic has some special syntax in Definite Clause Gram- mar. This grarnrnar is characterized by its high descriptive power due- scriptive power of the grammar. In order to use this dual formulation to define the syntactic structures

  9. COMPUTING PARAMETRIC GEON DESCRIPTIONS OF 3D MULTI-PART OBJECTS

    E-Print Network [OSTI]

    Dudek, Gregory

    qualitative shape and quantitative attribute information. Model recovery is achieved by tting all parametric Engineering McGill University April 1996 A Thesis submitted to the Faculty of Graduate Studies and Research Abstract A new approach for computing qualitative part-based descriptions of 3D objects from single

  10. WANG et al.: LEARNING OBJECT RECOGNITION FROM DESCRIPTIONS 1 Learning Models for Object Recognition

    E-Print Network [OSTI]

    Everingham, Mark

    from Natural Language Descriptions Josiah Wang scs6jwks@comp.leeds.ac.uk Katja Markert markert@comp.leeds.ac.uk Mark Everingham me@comp.leeds.ac.uk School of Computing University of Leeds Leeds, UK Abstract We collecting and labelling large training sets. The problem is compounded by the need to collect a training set

  11. Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative to propellers in small

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    1 Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative. Finally there is a description of the control system implementation for the tail's motion. Index terms--Fish propulsion, underwater robot, fish design. I. INTRODUCTION LTHOUGH almost all marine vehicles use propellers

  12. Automation of Termination: Abstracting CCG through MWG Automation of Termination: Abstracting Calling

    E-Print Network [OSTI]

    Ayala-Rincón, Mauricio

    Automation of Termination: Abstracting CCG through MWG Automation of Termination: Abstracting.Ayala-Rinc´on & C.A.Munoz IX Semin´ario Informal(, mas Formal!) November 29, 2013 1 / 32 #12;Automation science. While classical results state the undecidability of various termination problems, automated

  13. Diffuse Synchrotron Emission from Galactic Cosmic Ray Electrons

    E-Print Network [OSTI]

    Di Bernardo, Giuseppe; Evoli, Carmelo; Gaggero, Daniele

    2015-01-01

    Synchrotron diffuse radiation (SDR) emission is one of the major Galactic components, in the 100 MHz up to 100 GHz frequency range. Its spectrum and sky map provide valuable measure of the galactic cosmic ray electrons (GCRE) in the relevant energy range, as well as of the strength and structure of the Galactic magnetic fields (GMF), both regular and random ones. This emission is an astrophysical sky foreground for the study of the Cosmic Microwave Background (CMB), and the extragalactic microwave measurements, and it needs to be modelled as better as possible. In this regard, in order to get an accurate description of the SDR in the Galaxy, we use - for the first time in this context - 3-dimensional GCRE models obtained by running the DRAGON code. This allows us to account for a realistic spiral arm pattern of the source distribution, demanded to get a self-consistent treatment of all relevant energy losses influencing the final synchrotron spectrum.

  14. ABSTRACT TAMANG, APIL. A Multilevel Method

    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 of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 20102016 News BelowAsked toUSC-Aiken,AUii ABSTRACT

  15. Sandia Energy - Online Abstracts and Reports

    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 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNew CREWOnline Abstracts and Reports Home

  16. Sandia Energy - Online Abstracts and Reports

    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 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNew CREWOnline Abstracts and Reports

  17. Current Abstracts Nuclear Reactors and Technology

    SciTech Connect (OSTI)

    Bales, J.D.; Hicks, S.C.

    1993-01-01

    This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

  18. University of Memphis University Libraries Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    III. CLASSIFICATION: LIBRARY ASSISTANT III IV. NAME OF INCUMBENT: Vacant V. POSITION NO.: 1259 VI. JOBUniversity of Memphis University Libraries Position Description 1 I. DEPARTMENT: University Libraries: Collection Management, ILL & Document Delivery II. POSITION: Interlibrary Loan Library Assistant

  19. METEOROLOGY 163: Meteorological Instrumentation Course Description

    E-Print Network [OSTI]

    Clements, Craig

    1 METEOROLOGY 163: Meteorological Instrumentation Course Description In this course students will learn different measurement techniques and the instrumentation used in the atmospheric sciences to the techniques of instrument calibration, deployment, and data acquisition. Students will become familiar

  20. ECGR3142 Electromagnetic Devices Course Description

    E-Print Network [OSTI]

    Nasipuri, Asis

    in transformers and electrical machines; Generation of induced voltages; Electromechanical torque development, measurements of transformer parameters, transformer parameters. Basic principles of electric machines: forcesECGR3142 Electromagnetic Devices Course Description Principles of operation and basic design

  1. Embedding Hardware Description Languages in Proof Systems 

    E-Print Network [OSTI]

    Goossens, Kees G W

    The aim of this thesis is to investigate the integration of hardware description lamguaages (HDLs) and automated proof systems. Simulation of circuit designs written in an HDL is an important method of testing their ...

  2. Creation of Computer Animation from Story Descriptions

    E-Print Network [OSTI]

    Kahn, Kenneth Michael

    1979-08-01

    This report describes a computer system that creates simple computer animation in response to high-level, vague, and incomplete descriptions of films. It makes its films by collecting and evaluating suggestions from ...

  3. Experience with Palladium Diffusers in Tritium Processing

    SciTech Connect (OSTI)

    Motyka, T.; Clark, E.A.; Dauchess, D.A.; Heung, L.K.; Rabum, R.L.

    1995-01-27

    Hydrogen isotopes are separated from other gases by permeation through palladium and palladium-silver alloy diffusers in the Tritium Facilities at the US Department of Energy Savannah River Site (SRS). Diffusers have provided effective service for almost forty years. This paper is an overview of the operational experience with the various diffuser types that have been employed at SRS. Alternative technologies being developed at SRS for purifying hydrogen isotopes are also discussed.

  4. Nonlinear diffusion in Acetone-Benzene Solution

    E-Print Network [OSTI]

    Obukhovsky, Vjacheslav V

    2010-01-01

    The nonlinear diffusion in multicomponent liquids under chemical reactions influence has been studied. The theory is applied to the analysis of mass transfer in a solution of acetone-benzene. It has been shown, that the creation of molecular complexes should be taken into account for the explanation of the experimental data on concentration dependence of diffusion coefficients. The matrix of mutual diffusivities has been found and effective parameters of the system have been computed.

  5. Chemical structure of a methane counterflow diffusion flame perturbed with the addition

    E-Print Network [OSTI]

    Gomez, Alessandro

    Chemical structure of a methane counterflow diffusion flame perturbed with the addition of either, P.O. Box 208286, New Haven, CT 06520-8286, USA Abstract The chemical structure of a methane is consistent with the anticipated chemical kinetic behavior, based on thermal decomposition of large alkanes

  6. A DIFFUSION LMS STRATEGY FOR PARAMETER ESTIMATION IN NOISY REGRESSOR APPLICATIONS

    E-Print Network [OSTI]

    Champagne, Benoît

    A DIFFUSION LMS STRATEGY FOR PARAMETER ESTIMATION IN NOISY REGRESSOR APPLICATIONS Reza Abdolee ABSTRACT We study distributed least-mean square (LMS) estima- tion problems over adaptive networks, where this problem, we propose a distributed LMS algorithm that achieves asymptotically unbiased estimates via

  7. Fourth Order Compact Difference Scheme for 3D Convection Diffusion Equation with

    E-Print Network [OSTI]

    Zhang, Jun

    Fourth Order Compact Difference Scheme for 3D Convection Diffusion Equation with Boundary Layers University, Washington, DC 20052, USA January 13, 2000 Abstract We present a fourth order compact finite and computational efficiency of the fourth order compact dif­ ference scheme with that of the standard central

  8. A Censoring Strategy for Decentralized Estimation in Energy-Constrained Adaptive Diffusion Networks

    E-Print Network [OSTI]

    Leus, Geert

    A Censoring Strategy for Decentralized Estimation in Energy-Constrained Adaptive Diffusion Networks.j.t.leus}@tudelft.nl Abstract--This paper presents a censoring strategy for dis- tributed estimation over adaptive networks in scenarios where energy resources are limited. Sensors apply selective communi- cation policies in order

  9. AdHeat: An Influence-based Diffusion Model for Propagating Hints to Match Ads

    E-Print Network [OSTI]

    Cortes, Corinna

    AdHeat: An Influence-based Diffusion Model for Propagating Hints to Match Ads Hongji Bao Google edchang@google.com ABSTRACT In this paper, we present AdHeat, a social ad model con- sidering user influence in addition to relevance for match- ing ads. Traditionally, ad placement employs the relevance

  10. Activated Charcoal Based Diffusive Gradients in Thin Films for in Situ Monitoring of Bisphenols in Waters

    E-Print Network [OSTI]

    Ma, Lena

    Activated Charcoal Based Diffusive Gradients in Thin Films for in Situ Monitoring of Bisphenols, Gainesville, Florida 32611, United States *S Supporting Information ABSTRACT: Widespread use of bisphenols monitoring of BPs in waters. Endocrine-disrupting chemicals, including bisphenols (BPs), are widely used

  11. Convergence Proof of Jacobi Iterative Method for A Discretized 2D ConvectionDiffusion Equation \\Lambda

    E-Print Network [OSTI]

    Zhang, Jun

    Convergence Proof of Jacobi Iterative Method for A Discretized 2D Convection­Diffusion Equation \\Lambda Deyu Sang, y Jun Zhang, z and Shiqing Zhang y July 16, 1998 Abstract We prove that the Jacobi been verified numerically but evaded rigorous justification for almost two decades. Key words: Jacobi

  12. Directed Polymers in Random Environment are Diffusive at Weak Francis COMETS 2

    E-Print Network [OSTI]

    Directed Polymers in Random Environment are Diffusive at Weak Disorder 1 Francis COMETS 2 Universit­8502, Japan. email: nobuo@math.kyoto­u.ac.jp Abstract In this paper, we consider directed polymers in random and temperature), we prove monotonicity of the phase diagram in the temperature. Les Polym`eres Dirig'es En Milieu

  13. Experiments in Fluids 23 (1997) 498--503 Springer-Verlag 1997 Measurements of differential diffusion in a liquid-filled lung model

    E-Print Network [OSTI]

    Saylor, John R.

    1997-01-01

    diffusion in a liquid-filled lung model J. R. Saylor Abstract A noninvasive method for obtaining quantitative images of differential diffusion in liquid-filled lung models is presented. The method utilizes, pollutants, medications etc.) in the lung during gas-phase respiration. Clinical studies, as well

  14. Alternative descriptions and bipartite compound quantum systems

    E-Print Network [OSTI]

    G. Scolarici; L. Solombrino

    2008-11-10

    We analyze some features of alternative Hermitian and quasi-Hermitian quantum descriptions of simple and bipartite compound systems. We show that alternative descriptions of two interacting subsystems are possible if and only if the metric operator of the compound system can be obtained as tensor product of positive operators on component spaces. Some examples also show that such property could be strictly connected with symmetry properties of the non-Hermitian Hamiltonian.

  15. Metal Nitride Diffusion Barriers for Copper Interconnects 

    E-Print Network [OSTI]

    Araujo, Roy A.

    2010-01-14

    Advancements in the semiconductor industry require new materials with improved performance. With the introduction of copper as the interconnect material for integrated circuits, efficient diffusion barriers are required ...

  16. Portsmouth Gaseous Diffusion Plant Director's Final Findings...

    Office of Environmental Management (EM)

    Portsmouth Gaseous Diffusion Plant Director's Final Findings and Orders, October 4, 1995 State Ohio Agreement Type Federal Facility Agreement Legal Driver(s) FFCAct Scope Summary...

  17. Independent Oversight Review, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    April 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - April 2013 April 2013 Review of the Integrated Safety Management System Phase I Verification Review at...

  18. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 1A, 2003 #12;DESCRIPTIONS OF SEDIMENT. Petrushak Sediment Descriptions Florida State University Matthew G. Curren Modified by Steven Petrushak.................................................................................................8 SEDIMENT CLASSIFICATION

  19. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 1, 1996 #12;DESCRIPTIONS OF SEDIMENT. Janecek and Steven B. Petrushak Sediment Descriptions Florida State University Matthew G. Curren Antarctic...............................................................................................12 SEDIMENT CLASSIFICATION

  20. Intro Probability Rabbits Description Predictions Ontology of Earthquake Probability: Metaphor

    E-Print Network [OSTI]

    Stark, Philip B.

    Intro Probability Rabbits Description Predictions Ontology of Earthquake Probability: Metaphor be abandoned in favor of common sense. #12;Intro Probability Rabbits Description Predictions Earthquake not random. ­Wm. ShakesEarth #12;Intro Probability Rabbits Description Predictions Earthquake Poker

  1. Stability of the holographic description of the Universe

    E-Print Network [OSTI]

    Peng Huang; Yong-chang Huang

    2013-04-01

    We investigate the stability of the holographic description of the universe. By treating the perturbation globally, we discover that this description is stable, which is support for the holographic description of the universe.

  2. Abstract of "Revealing White Matter Fiber Structure with Diffusion Imaging" by Song Zhang, Ph.D., Brown University, August 2006.

    E-Print Network [OSTI]

    Laidlaw, David

    . Apart from qualitative exploration, I also present quantitative methods such as metrics on tractography. The work in this dissertation advances both qualitative visualization and quantitative analysis of the 3D. S., Nankai University, 1996 Sc. M, Brown University, 2000 Ph.D. Thesis Providence, Rhode Island

  3. Anomalous diffusion in fractal globules

    E-Print Network [OSTI]

    Mikhail V. Tamm; Leonid I. Nazarov; Alexey A. Gavrilov; Alexander V. Chertovich

    2016-01-07

    The fractal globule state is a popular model for describing chromatin packing in eukaryotic nuclei. Here we provide a scaling theory and dissipative particle dynamics (DPD) computer simulation for the thermal motion of monomers in the fractal globule state. Simulations starting from different entanglement-free initial states show good convergence which provides evidence supporting the existence of unique metastable fractal globule state. We show monomer motion in this state to be sub-diffusive described by $\\langle X^2 (t)\\rangle \\sim t^{\\alpha_F}$ with $\\alpha_F$ close to 0.4. This result is in good agreement with existing experimental data on the chromatin dynamics which makes an additional argument in support of the fractal globule model of chromatin packing.

  4. Modelling international wind energy diffusion: Are the patterns of induced diffusion `S'

    E-Print Network [OSTI]

    Feigon, Brooke

    Modelling international wind energy diffusion: Are the patterns of induced diffusion `S' shaped datasets, the paper explores the patterns of international wind energy diffusion in OECD countries. The model employed in the paper predicted that wind energy, as a complex and expensive innovation, would

  5. Nuclear Waste Partnership (NWP) Quality Assurance Program Description...

    Office of Environmental Management (EM)

    Waste Partnership (NWP) Quality Assurance Program Description (QAPD) Nuclear Waste Partnership (NWP) Quality Assurance Program Description (QAPD) The documents included in this...

  6. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 7, 1995 #12;DESCRIPTIONS OF SEDIMENT-Slide Analysis.........................................................................11 SEDIMENT CLASSIFICATION...................................................................11 Pelagic sediment..............................................................................12

  7. Thermal Expansion and Diffusion Coefficients of Carbon

    E-Print Network [OSTI]

    Wei, Chenyu

    Thermal Expansion and Diffusion Coefficients of Carbon Nanotube-Polymer Composites Chenyu Wei* NASA of carbon nanotube-polyethylene composites. Additions of carbon nanotubes to a polymer matrix are found for polymer-nanotube interface are used to investigate the thermal expansion and diffusion characteristics

  8. Finite-difference schemes for anisotropic diffusion

    SciTech Connect (OSTI)

    Es, Bram van; Koren, Barry; Blank, Hugo J. de

    2014-09-01

    In fusion plasmas diffusion tensors are extremely anisotropic due to the high temperature and large magnetic field strength. This causes diffusion, heat conduction, and viscous momentum loss, to effectively be aligned with the magnetic field lines. This alignment leads to different values for the respective diffusive coefficients in the magnetic field direction and in the perpendicular direction, to the extent that heat diffusion coefficients can be up to 10{sup 12} times larger in the parallel direction than in the perpendicular direction. This anisotropy puts stringent requirements on the numerical methods used to approximate the MHD-equations since any misalignment of the grid may cause the perpendicular diffusion to be polluted by the numerical error in approximating the parallel diffusion. Currently the common approach is to apply magnetic field-aligned coordinates, an approach that automatically takes care of the directionality of the diffusive coefficients. This approach runs into problems at x-points and at points where there is magnetic re-connection, since this causes local non-alignment. It is therefore useful to consider numerical schemes that are tolerant to the misalignment of the grid with the magnetic field lines, both to improve existing methods and to help open the possibility of applying regular non-aligned grids. To investigate this, in this paper several discretization schemes are developed and applied to the anisotropic heat diffusion equation on a non-aligned grid.

  9. Thermal diffusion shock waves Sorasak Danworaphong1

    E-Print Network [OSTI]

    Craig, Walter

    Thermal diffusion shock waves Sorasak Danworaphong1 , Walter Craig3 , Vitalyi Gusev4 , and Gerald J and are concentrated by a thermal gradient imposed on a salt solution, the separation of the components of a mixture in a thermal field, known as "thermal diffusion", or the Ludwig-Soret effect has been found not only in liquids

  10. Surveying Diffusion in Complex Geometries. An Essay

    E-Print Network [OSTI]

    Denis Grebenkov

    2009-09-08

    The surrounding world surprises us by the beauty and variety of complex shapes that emerge from nanometric to macroscopic scales. Natural or manufactured materials (sandstones, sedimentary rocks and cement), colloidal solutions (proteins and DNA), biological cells, tissues and organs (lungs, kidneys and placenta), they all present irregularly shaped "scenes" for a fundamental transport "performance", that is, diffusion. Here, the geometrical complexity, entangled with the stochastic character of diffusive motion, results in numerous fascinating and sometimes unexpected effects like diffusion screening or localization. These effects control many diffusion-mediated processes that play an important role in heterogeneous catalysis, biochemical mechanisms, electrochemistry, growth phenomena, oil recovery, or building industry. In spite of a long and rich history of academic and industrial research in this field, it is striking to see how little we know about diffusion in complex geometries, especially the one which occurs in three dimensions. We present our recent results on restricted diffusion. We look into the role of geometrical complexity at different levels, from boundary microroughness to hierarchical structure and connectivity of the whole diffusion-confining domain. We develop a new approach which consists in combining fast random walk algorithms with spectral tools. The main focus is on studying diffusion in model complex geometries (von Koch boundaries, Kitaoka acinus, etc.), as well as on developing and testing spectral methods. We aim at extending this knowledge and at applying the accomplished arsenal of theoretical and numerical tools to structures found in nature and industry.

  11. Model for Diffusion-Induced Ramsey Narrowing

    E-Print Network [OSTI]

    Alexander Romanenko; Leonid Yatsenko

    2008-01-22

    Diffusion-induced Ramsey narrowing that appears when atoms can leave the interaction region and repeatedly return without lost of coherence is investigated using strong collisions approximation. The effective diffusion equation is obtained and solved for low-dimensional model configurations and three-dimensional real one.

  12. A posteriori soundness for non-deterministic abstract interpretations

    E-Print Network [OSTI]

    Might, Matt

    . In abstract interpretation, speed and precision are a function of the abstract allocation policy. By abstract://www.ccs.neu.edu/~pete/ Abstract. An abstract interpretation's resource-allocation policy (e.g., one heap summary node per allocation site) largely determines both its speed and precision. Historically, context has driven allocation

  13. DOE-NABIR PI Workshop: Abstracts 2003

    SciTech Connect (OSTI)

    Various

    2003-01-28

    The mission of the NABIR program is to provide the fundamental science that will serve as the basis for the development of cost-effective bioremediation and long-term stewardship of radionuclides and metals in the subsurface at DOE sites. The focus of the program is on strategies leading to long-term immobilization of contaminants in situ to reduce the risk to humans and the environment. Contaminants of special interest are uranium, technetium, plutonium, chromium, and mercury. The focus of the NABIR program is on the bioremediation of these contaminants in the subsurface below the root zone, including both vadose and saturated zones. The program consists of four interrelated Science Elements (Biotransformation, Community Dynamics/Microbial Ecology, Biomolecular Science and Engineering, and Biogeochemistry). The program also has a cross-cutting Assessment Element that supports development of innovative approaches and technologies to support the science elements. An element called Bioremediation and its Societal Implications and Concerns (BASIC) addresses potential societal issues of implementing NABIR scientific findings. The material presented at this year's workshop focuses on approximately 60 research projects funded in FY 2000-2003 by the Environmental Remediation Sciences Division in DOE's Office of Biological and Environmental Research (BER) in the Office of Science. Abstracts of NABIR research projects are provided in this book.

  14. Solid-state diffusion in amorphous zirconolite

    SciTech Connect (OSTI)

    Yang, C.; Dove, M. T.; Trachenko, K.; Zarkadoula, E.; Todorov, I. T.; Geisler, T.; Brazhkin, V. V.

    2014-11-14

    We discuss how structural disorder and amorphization affect solid-state diffusion, and consider zirconolite as a currently important case study. By performing extensive molecular dynamics simulations, we disentangle the effects of amorphization and density, and show that a profound increase of solid-state diffusion takes place as a result of amorphization. Importantly, this can take place at the same density as in the crystal, representing an interesting general insight regarding solid-state diffusion. We find that decreasing the density in the amorphous system increases pre-factors of diffusion constants, but does not change the activation energy in the density range considered. We also find that atomic species in zirconolite are affected differently by amorphization and density change. Our microscopic insights are relevant for understanding how solid-state diffusion changes due to disorder and for building predictive models of operation of materials to be used to encapsulate nuclear waste.

  15. CEGR 6090 -Water Quality Control Course Description

    E-Print Network [OSTI]

    Bowen, James D.

    dispersion, turbulent diffusion, transport across interfaces, thermal pollution, eutrophication, pollution. "Environmental Modeling: Fate and Transport of Pollutants in Water, Air, and Soil." Wiley-Interscience, New York. Transport in estuaries. V. Impacts of conventional pollutants on surface waters VI. Eutrophication VII

  16. Description of the RDCDS Meteorological Component

    SciTech Connect (OSTI)

    Pekour, Mikhail S.; Berg, Larry K.

    2007-10-01

    This report provides a detailed description of the Rapidly Deployable Chemical Defense System (RDCDS) Meteorological Component. The Meteorological Component includes four surface meteorological stations, miniSODAR, laptop computers, and communications equipment. This report describes the equipment that is used, explains the operation of the network, and gives instructions for setting up the Component and replacing defective parts. A detailed description of operation and use of the individual sensors, including the data loggers is not covered in the current document, and the interested reader should refer to the manufacturer’s documentation.

  17. Composable abstractions for synchronization in dynamic threading platforms

    E-Print Network [OSTI]

    Sukha, Jim

    2011-01-01

    High-level abstractions for parallel programming simplify the development of efficient parallel applications. In particular, composable abstractions allow programmers to construct a complex parallel application out of ...

  18. Asymptotics for the maximum likelihood estimators of diffusion models 

    E-Print Network [OSTI]

    Jeong, Minsoo

    2009-05-15

    In this paper I derive the asymptotics of the exact, Euler, and Milstein ML estimators for diffusion models, including general nonstationary diffusions. Though there have been many estimators for the diffusion model, their asymptotic properties were...

  19. Microfluidic Investigation of Tracer Dye Diffusion in Alumina Nanofluids 

    E-Print Network [OSTI]

    Ozturk, Serdar 1979-

    2012-10-05

    on enhanced mass diffusion and the possibility of tailoring mass transport by direct manipulation of molecular diffusion. Therefore, a microfluidic approach capable of directly probing tracer diffusion between nanoparticle-laden fluid streams was developed...

  20. Better Buildings Neighborhood Program Business Models Guide: Program Administrator Description

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program Business Models Guide: Program Administrator Business Models, Program Administrator Description.

  1. Review of enhanced vapor diffusion in porous media

    SciTech Connect (OSTI)

    Webb, S.W.; Ho, C.K.

    1998-08-01

    Vapor diffusion in porous media in the presence of its own liquid has often been treated similar to gas diffusion. The gas diffusion rate in porous media is much lower than in free space due to the presence of the porous medium and any liquid present. However, enhanced vapor diffusion has also been postulated such that the diffusion rate may approach free-space values. Existing data and models for enhanced vapor diffusion, including those in TOUGH2, are reviewed in this paper.

  2. A macroscopic description of a generalized self-organized criticality system: Astrophysical applications

    SciTech Connect (OSTI)

    Aschwanden, Markus J., E-mail: aschwanden@lmsal.com [Lockheed Martin Solar and Astrophysics Laboratory, A021S, Building 252, 3251 Hanover Street, Palo Alto, CA 94304 (United States)

    2014-02-10

    We suggest a generalized definition of self-organized criticality (SOC) systems: SOC is a critical state of a nonlinear energy dissipation system that is slowly and continuously driven toward a critical value of a system-wide instability threshold, producing scale-free, fractal-diffusive, and intermittent avalanches with power law-like size distributions. We develop here a macroscopic description of SOC systems that provides an equivalent description of the complex microscopic fine structure, in terms of fractal-diffusive transport (FD-SOC). Quantitative values for the size distributions of SOC parameters (length scales L, time scales T, waiting times ?t, fluxes F, and fluences or energies E) are derived from first principles, using the scale-free probability conjecture, N(L)dL?L {sup –d}, for Euclidean space dimension d. We apply this model to astrophysical SOC systems, such as lunar craters, the asteroid belt, Saturn ring particles, magnetospheric substorms, radiation belt electrons, solar flares, stellar flares, pulsar glitches, soft gamma-ray repeaters, black-hole objects, blazars, and cosmic rays. The FD-SOC model predicts correctly the size distributions of 8 out of these 12 astrophysical phenomena, and indicates non-standard scaling laws and measurement biases for the others.

  3. Diffusion and transport coefficients in synthetic opals

    SciTech Connect (OSTI)

    Sofo, J. O.; Mahan, G. D.; Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200

    2000-07-15

    Opals are structures composed of close-packed spheres in the size range of nano to micrometers. They are sintered to create small necks at the points of contact. We have solved the diffusion problem in such structures. The relation between the diffusion coefficient and the thermal and electrical conductivity is used to estimate the transport coefficients of opal structures as a function of the neck size and the mean free path of the carriers. The theory presented is also applicable to the diffusion problem in other periodic structures. (c) 2000 The American Physical Society.

  4. Transport diffusion of liquid water and methanol through membranes...

    Office of Scientific and Technical Information (OSTI)

    Transport diffusion of liquid water and methanol through membranes Citation Details In-Document Search Title: Transport diffusion of liquid water and methanol through membranes The...

  5. Portsmouth Gaseous Diffusion Plant - Quadrant I Groundwater Investigat...

    Office of Environmental Management (EM)

    Portsmouth Gaseous Diffusion Plant - Quadrant I Groundwater Investigative (5-Unit) Area Plume Portsmouth Gaseous Diffusion Plant - Quadrant I Groundwater Investigative (5-Unit)...

  6. DOE Seeks Small Businesses for Paducah Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    Paducah Gaseous Diffusion Plant Infrastructure Support Services DOE Seeks Small Businesses for Paducah Gaseous Diffusion Plant Infrastructure Support Services June 10, 2014 -...

  7. DOE Issues Final Request for Proposal for Paducah Gaseous Diffusion...

    Energy Savers [EERE]

    Paducah Gaseous Diffusion Plant Support Services DOE Issues Final Request for Proposal for Paducah Gaseous Diffusion Plant Support Services October 6, 2014 - 4:13pm Addthis Media...

  8. DOE Awards Contract for Paducah Gaseous Diffusion Plant Infrastructure...

    Office of Environmental Management (EM)

    Paducah Gaseous Diffusion Plant Infrastructure Support Services DOE Awards Contract for Paducah Gaseous Diffusion Plant Infrastructure Support Services June 17, 2015 - 5:45pm...

  9. Low cost fuel cell diffusion layer configured for optimized anode...

    Office of Scientific and Technical Information (OSTI)

    Patent: Low cost fuel cell diffusion layer configured for optimized anode water management Citation Details In-Document Search Title: Low cost fuel cell diffusion layer configured...

  10. Biomedical Applications of NMR Imaging and Diffusion Studies

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    Biomedical Applications of NMR Imaging and Diffusion Studies Using Thermal And Hyperpolarized Xenon by ..................................................................................................... David Nelson Chairman, Department of Physics #12;Biomedical Applications of NMR Imaging and Diffusion

  11. Diffusion releases through one and two finite planar zones from...

    Office of Scientific and Technical Information (OSTI)

    Diffusion releases through one and two finite planar zones from a nuclear waste package Citation Details In-Document Search Title: Diffusion releases through one and two finite...

  12. Diffusion releases through one and two finite planar zones from...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Diffusion releases through one and two finite planar zones from a nuclear waste package Citation Details In-Document Search Title: Diffusion releases through one...

  13. Updated 06/13 Program description

    E-Print Network [OSTI]

    Garfunkel, Eric

    Updated 06/13 Program description The Rutgers, School of Health-Related Professions (SHRP) Dental jointly sponsored by the Rutgers-School of Health Related Professions with Brookdale Community College, Thomas Edison State College or Union County College and the Rutgers-School of Health Related Professions

  14. II. DEVICE DESCRIPTION AND GENERAL PHYSICS REQUIREMENTS

    E-Print Network [OSTI]

    II. DEVICE DESCRIPTION AND GENERAL PHYSICS REQUIREMENTS b. H. NEILSON, Jr. (ORNL) ILA. INTRODUCTION To accomplish the dual goals set forth in the mis- sion statement - determination of burning plasma physics years. The pro cess has drawn extensively upon the world toka- mak physics data base as well

  15. University of Memphis University Libraries Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    University of Memphis University Libraries ­ Position Description I. DEPARTMENT: Preservation and Special Collections II. POSITION: ULDR Assistant III. CLASSIFICATION: Graduate Assistantship IV. NAME OF INCUMBENT: Vacant V. POSITION NO.: VI. JOB PURPOSE This position is a member of the team providing support

  16. University of Memphis University Libraries Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    University of Memphis University Libraries ­ Position Description I. DEPARTMENT: Preservation and Special Collections II. POSITION: NAAPA Assistant III. CLASSIFICATION: Graduate Assistantship IV. NAME OF INCUMBENT: Open V. POSITION NO.: 16330 VI. JOB PURPOSE This position is a member of the team providing

  17. University of Memphis University Libraries -Position Description

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    Libraries ­ Library Information Systems II. POSITION: ILS Librarian III. CLASSIFICATION: Faculty IV. NAME of the various components of the ILMS to meet the needs of library users and library personnel. The ILS LibrarianUniversity of Memphis University Libraries - Position Description I. DEPARTMENT: University

  18. COURSE DESCRIPTION Dept., Number CS 4352

    E-Print Network [OSTI]

    Kreinovich, Vladik

    Semester hours 45 hours + 21 lab hours Course Coordinator Luc Longpré Current Catalog Description of programming languages, parsing techniques, intermediate languages, optimization and code generation. Textbook definition \\& manipulation including one and two pass updates. 3. lex and yacc to generate a basic parser 4

  19. WASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED,

    E-Print Network [OSTI]

    for reduction in mixed waste generation Pump Oil Substitution 51 Hazardous Waste / Industrial Waste $3,520 $6 with the subsequent clean up costs ($15,000). Hydraulic Oil Product Substitution 3,000 Industrial Waste $26,000 $0 $26WASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED, REUSED, RECYCLED OR CONSERVED IN 2003 WASTE TYPE

  20. WASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED,

    E-Print Network [OSTI]

    . Removed grit and sludge are mixed with the waste oil. Photon-counting spectrofluorimeter Substitution 54 or composted at the stump dump. Plant Engineering grounds vehicle wash system * Waste minimization 8,000 OilsWASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED, REUSED, RECYCLED OR CONSERVED IN 2007 WASTE TYPE

  1. April, 2000 1 PART I: JOB DESCRIPTION

    E-Print Network [OSTI]

    April, 2000 1 PART I: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom Department Name: SFU ____ Evaluating Supervisor __X__ #12;April, 2000 2 SIMON FRASER UNIVERSITY & C.U.P.E., Local 3338 WEIGHTED JOB and academic requirements. Manages Corporate Time calendar for Grad Chair. #12;April, 2000 3 Accesses student

  2. DESCRIPTION OF ACCIDENT MSU DRIVERS SIGNATURE

    E-Print Network [OSTI]

    Dyer, Bill

    of Commercial Policy Number) Motor vehicles that are owned, rented, leased, or loaned to Montana State's Name: MSU VEHICLE (VEHICLE #1) Issued Citation: YES NO Explain: Department: Phone: 994 - Vehicle Owner: Use of Vehicle: Vehicle: Make Model Year VIN: Plate Number: State: Description of Damage: Safety

  3. Team Description Paper Virtual Robot competition

    E-Print Network [OSTI]

    Visser, Arnoud

    UvA Rescue Team Description Paper Virtual Robot competition Rescue Simulation League RoboCup Iran- ject [7], although their participation for the Iran Open and Brazil 2014 is not yet con#12;rmed and not full 6D SLAM, because the 3D point-cloud consists of slices of a rotating 2D laser scanner. When

  4. Documentation for database.txt Description

    E-Print Network [OSTI]

    Gilchrist, Michael A.

    Documentation for database.txt Description: The file database.txtis a 163MB file which contains a pair-wise list of all the proteins seen in the TAP and HMS-PCI databases as well as the MIPS Complex-wise association. See Gilchrist et al. (2003) for more details. About database.txt: The database is available

  5. Subject Description Form Subject Code COMP5222

    E-Print Network [OSTI]

    Liu, Wenyin

    Subject Description Form Subject Code COMP5222 Subject Title Software Testing and Quality Assurance. present effective testing techniques (both black-box and white- box) for ensuring high quality software; 2 Syllabus Software Quality Concepts: Software quality problems. Quality definition. Cost of quality

  6. Cultural Psychology and Social Practice Description

    E-Print Network [OSTI]

    Schwefel, Hans-Peter

    1 Cultural Psychology and Social Practice Description The professional programme in Cultural Psychology and Social Practice provides students with the knowledge and skills to apply cultural psychology of diagnoses, the psychologization of contemporary culture, and public engagement with art, museums, zoos

  7. Blackout of 2003: Description and Responses

    E-Print Network [OSTI]

    Systems Institut de recherche d'Hydro-Québec (IREQ) ISO New England Korea Elec. Power Research InstitutePSERC Blackout of 2003: Description and Responses Dennis Ray Executive Director Power Systems interchange of ideas · Educate the next generation of power industry engineers #12;3 PSERC Collaborating

  8. University of Alberta GIGA Program Description and

    E-Print Network [OSTI]

    Culberson, Joseph

    University of Alberta GIGA Program Description and Operation by Joseph Culberson Technical Report TR 92--06 June 1992 DEPARTMENT OF COMPUTING SCIENCE The University of Alberta Edmonton, Alberta of Alberta, Edmonton, Alberta, Canada, T6G 2H1. email:joe@cs.ualberta.ca y This paper is available via ftp

  9. Alberta Alzheimer Research Program III Description

    E-Print Network [OSTI]

    Michelson, David G.

    Alberta Alzheimer Research Program III Description The Alzheimer Society of Alberta and Northwest Territories (ASANT) and the Alberta Prion Research Institute (Prion Institute) present the Alberta Alzheimer Research Program (AARP) III. The AARP III allows qualified Alberta-based investigators to seek funding

  10. Course Description Grid Computing, NGSSC, 2p

    E-Print Network [OSTI]

    Elmroth, Erik

    #12;­ Grid security: Grid security demands and solutions for, e.g., authen- tication, authorityCourse Description Grid Computing, NGSSC, 2p Erik Elmroth, Olle Mulmo, and Leif Nixon February 14, 2003 General information This course is designed to give a broad overview of the concept of grid comput

  11. Internship Position Description Title: Refugee Resettlement Intern

    E-Print Network [OSTI]

    Nelson, Tim

    Internship Position Description Title: Refugee Resettlement Intern Purpose The purpose of the World in the field of refugee resettlement. Possible Responsibilities Assist Case Workers with attending and transporting refugee clients to important appointments. Help newly arrived families with tasks such as paying

  12. Injection Molding-Injection Molding Process Description

    E-Print Network [OSTI]

    Colton, Jonathan S.

    Injection Molding-Injection Molding Process Description ver. 1 ME 4210: Manufacturing Processes and Engineering Prof. J.S. Colton © GIT 2009 2 #12;EquipmentEquipment Cl M ld B lClamp Mold Hopper Barrel ME 4210;Machine schematic ME 4210: Manufacturing Processes and Engineering Prof. J.S. Colton © GIT 2009 6 #12;Mold

  13. Injection Molding-Injection Molding Process Description

    E-Print Network [OSTI]

    Colton, Jonathan S.

    Injection Molding-Injection Molding Process Description ver. 1 1ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton © GIT 2009 #12;Injection molding machineInjection molding machine Cl M ld B lClamp Mold Hopper Barrel 5ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton © GIT 2009 #12;Kraus

  14. HOUSING RESOURCES Description of Boston Neighborhoods

    E-Print Network [OSTI]

    HOUSING RESOURCES Boston Description of Boston Neighborhoods http://www.bu.edu/offcampus/tips-resources/bostons-neighborhoods/ Summer Housing Boston http://www.urbaninterns.com/journal/jobseekers/summer-housing-for-boston-interns/ https://www.northeastern.edu/conferences/intern/index.html http://housing.mit.edu/summer_guest/non_mit_summer_internship_housing

  15. DESCRIPTION OF SELECTED WASTE MANAGEMENT PROBLEMS,

    E-Print Network [OSTI]

    #12;DESCRIPTION OF SELECTED WASTE MANAGEMENT PROBLEMS, OPTIONS AND STRATEGIES Prepared for BC of Agriculture, Fisheries and Food Fisheries and Oceans Fraser River Action Plan November, 1996 Prepared by P. E Nutrients in Wastes 22 4.2.5 Waste Treatment 23 5.0 STRATEGY DEVELOPMENT 24 5.1 LAND USE MANAGEMENT 24 5

  16. Industry Analysis and Customer Segmentation Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    : A leading health care company, serving more than 75 million people worldwide. Our family of companiesIndustry Analysis and Customer Segmentation Company Description: Our company specializes will research geographic market share by brand/company. The final deliverable will be a prioritized list

  17. C. PROJECT DESCRIPTION 1. List of Participants

    E-Print Network [OSTI]

    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

  18. L\\'evy Fluctuations and Tracer Diffusion in Dilute Suspensions of Algae and Bacteria

    E-Print Network [OSTI]

    Zaid, Irwin M; Yeomans, Julia M

    2010-01-01

    Swimming microorganisms rely on effective mixing strategies to achieve efficient nutrient influx. Recent experiments, probing the mixing capability of unicellular biflagellates, revealed that passive tracer particles exhibit anomalous non-Gaussian diffusion when immersed in a dilute suspension of self-motile Chlamydomonas reinhardtii algae. Qualitatively, this observation can be explained by the fact that the algae induce a fluid flow that may occasionally accelerate the colloidal tracers to relatively large velocities. A satisfactory quantitative theory of enhanced mixing in dilute active suspensions, however, is lacking at present. In particular, it is unclear how non-Gaussian signatures in the tracers' position distribution are linked to the self-propulsion mechanism of a microorganism. Here, we develop a systematic theoretical description of anomalous tracer diffusion in active suspensions, based on a simplified tracer-swimmer interaction model that captures the typical distance scaling of a microswimmer'...

  19. Novel applications of diffusion-driven flow

    E-Print Network [OSTI]

    Allshouse, Michael R

    2010-01-01

    Diffusion-driven flow is the result of a conflict between hydrostatic equilibrium in a density stratified fluid and the no-flux boundary condition that must be obeyed on impermeable boundaries that are sloping with respect ...

  20. Diffuse reflectance imaging with astronomical applications

    E-Print Network [OSTI]

    Hasinoff, Samuel W.

    Diffuse objects generally tell us little about the surrounding lighting, since the radiance they reflect blurs together incident lighting from many directions. In this paper we discuss how occlusion geometry can help invert ...

  1. Diffusion, dimensionality and noise in transcriptional regulation

    E-Print Network [OSTI]

    Gasper Tkacik; William Bialek

    2007-12-12

    The precision of biochemical signaling is limited by randomness in the diffusive arrival of molecules at their targets. For proteins binding to the specific sites on the DNA and regulating transcription, the ability of the proteins to diffuse in one dimension by sliding along the length of the DNA, in addition to their diffusion in bulk solution, would seem to generate a larger target for DNA binding, consequently reducing the noise in the occupancy of the regulatory site. Here we show that this effect is largely cancelled by the enhanced temporal correlations in one dimensional diffusion. With realistic parameters, sliding along DNA has surprisingly little effect on the physical limits to the precision of transcriptional regulation.

  2. Diffuser Augmented Wind Turbine Analysis Code

    E-Print Network [OSTI]

    Carroll, Jonathan

    2014-05-31

    , it is necessary to develop innovative wind capturing devices that can produce energy in the locations where large conventional horizontal axis wind turbines (HAWTs) are too impractical to install and operate. A diffuser augmented wind turbine (DAWT) is one...

  3. Electrospray emitters For diffusion vacuum pumps

    E-Print Network [OSTI]

    Diaz Gómez Maqueo, Pablo (Pablo Ly)

    2011-01-01

    Following similar principles as regular diffusion vacuum pumps, an electrospray emitter is set to produce a jet of charged particles that will drag air molecules out of a volume. To be a feasible concept, the emitted ...

  4. JUMP DIFFUSION OPTION WITH TRANSACTION COSTS

    E-Print Network [OSTI]

    Mocioalca, Oana

    JUMP DIFFUSION OPTION WITH TRANSACTION COSTS "non-systematic" risk, inclusive of transaction costs. We compute the total transac- tion costs and the turnover for different options, transaction costs, and revision intervals

  5. Excursions of diffusion processes and continued fractions

    E-Print Network [OSTI]

    Alain Comtet; Yves Tourigny

    2010-02-11

    It is well-known that the excursions of a one-dimensional diffusion process can be studied by considering a certain Riccati equation associated with the process. We show that, in many cases of interest, the Riccati equation can be solved in terms of an infinite continued fraction. We examine the probabilistic significance of the expansion. To illustrate our results, we discuss some examples of diffusions in deterministic and in random environments.

  6. Nuclear criticality safety evaluation of large cylinder cleaning operations in X-705, Portsmouth Gaseous diffusion Plant

    SciTech Connect (OSTI)

    Sheaffer, M.K.; Keeton, S.C.; Lutz, H.F.

    1995-06-01

    This report evaluates nuclear criticality safety for large cylinder cleaning operations in the Decontamination and Recovery Facility, X-705, at the Portsmouth Gaseous Diffusion Plant. A general description of current cleaning procedures and required hardware/equipment is presented, and documentation for large cylinder cleaning operations is identified and described. Control parameters, design features, administrative controls, and safety systems relevant to nuclear criticality are discussed individually, followed by an overall assessment based on the Double Contingency Principle. Recommendations for enhanced safety are suggested, and issues for increased efficiency are presented.

  7. Spin-orbit induced backflow in neutron matter with auxiliary field diffusion Monte Carlo

    E-Print Network [OSTI]

    L. Brualla; S. Fantoni; A. Sarsa; K. E Schmidt; S. A. Vitiello

    2003-04-14

    The energy per particle of zero-temperature neutron matter is investigated, with particular emphasis on the role of the $\\vec L\\cdot\\vec S$ interaction. An analysis of the importance of explicit spin--orbit correlations in the description of the system is carried out by the auxiliary field diffusion Monte Carlo method. The improved nodal structure of the guiding function, constructed by explicitly considering these correlations, lowers the energy. The proposed spin--backflow orbitals can conveniently be used also in Green's Function Monte Carlo calculations of light nuclei.

  8. Development of anomalous diffusion among crowding proteins

    E-Print Network [OSTI]

    Margaret R. Horton; Felix Höfling; Joachim O. Rädler; Thomas Franosch

    2010-03-19

    In cell membranes, proteins and lipids diffuse in a highly crowded and heterogeneous landscape, where aggregates and dense domains of proteins or lipids obstruct the path of diffusing molecules. In general, hindered motion gives rise to anomalous transport, though the nature of the onset of this behavior is still under debate and difficult to investigate experimentally. Here, we present a systematic study where proteins bound to supported lipid membranes diffuse freely in two dimensions, but are increasingly hindered by the presence of other like proteins. In our model system, the surface coverage of the protein avidin on the lipid bilayer is well controlled by varying the concentration of biotinylated lipid anchors. Using fluorescence correlation spectroscopy (FCS), we measure the time correlation function over long times and convert it to the mean-square displacement of the diffusing proteins. Our approach allows for high precision data and a clear distinction between anomalous and normal diffusion. It enables us to investigate the onset of anomalous diffusion, which takes place when the area coverage of membrane proteins increases beyond approximately 5%. This transition region exhibits pronounced spatial heterogeneities. Increasing the packing fraction further, transport becomes more and more anomalous, manifested in a decrease of the exponent of subdiffusion.

  9. Diffusivity of rocks: Gas diffusion measurements and correlation to porosity and pore size distribution

    E-Print Network [OSTI]

    Hu, Qinhong "Max"

    scenarios, such as geologic disposal of radioactive waste [Gillham et al., 1984], contaminant remediation [e been used to determine gas transport parameters includ- ing permeability, diffusion coefficient

  10. System Design Description PFP Thermal Stabilization

    SciTech Connect (OSTI)

    RISENMAY, H.R.

    2000-04-25

    The purpose of this document is to provide a system design description (SDD) and design basis for the Plutonium Finishing Plant (PFP) Thermal Stabilization project. The chief objective of the SDD is to document the Structures, Systems, and Components (SSCs) that establish and maintain the facility Safety Envelope necessary for normal safe operation of the facility; as identified in the FSAR, the OSRs, and Safety Assessment Documents (SADs). This safety equipment documentation should satisfy guidelines for the SDD given in WHC-SD-CP-TI-18 1, Criteria for Identification and Control of Equipment Necessary for Preservation of the Safety Envelope and Safe Operation of PFP. The basis for operational, alarm response, maintenance, and surveillance procedures are also identified and justified in this document. This document and its appendices address the following elements of the PFP Thermal Stabilization project: Functional and design requirements; Design description; Safety Envelope Analysis; Safety Equipment Class; and Operational, maintenance and surveillance procedures.

  11. Parametric description of the quantum measurement process

    E-Print Network [OSTI]

    Pietro Liuzzo-Scorpo; Alessandro Cuccoli; Paola Verrucchi

    2015-05-12

    We present a description of the measurement process based on the parametric representation with environmental coherent states. This representation is specifically tailored for studying quantum systems whose environment needs being considered through the quantum-to-classical cross-over. Focusing upon projective measures, and exploiting the connection between large-$N$ quantum theories and the classical limit of related ones, we manage to push our description beyond the pre-measurement step. This allows us to show that the outcome production follows from a global-symmetry breaking, entailing the observed system's state reduction, and that the statistical nature of the process is brought about, together with the Born's rule, by the macroscopic character of the measuring apparatus.

  12. Property:Technology Description | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource HistoryPotentialRuralUtilityScalePVGeneration Jump to:SpatialResolution Jump to: navigation,Description

  13. Macroscopic description for networks of spiking neurons

    E-Print Network [OSTI]

    Ernest Montbrió; Diego Pazó; Alex Roxin

    2015-06-22

    A major goal of neuroscience, statistical physics and nonlinear dynamics is to understand how brain function arises from the collective dynamics of networks of spiking neurons. This challenge has been chiefly addressed through large-scale numerical simulations. Alternatively, researchers have formulated mean-field theories to gain insight into macroscopic states of large neuronal networks in terms of the collective firing activity of the neurons, or the firing rate. However, these theories have not succeeded in establishing an exact correspondence between the firing rate of the network and the underlying microscopic state of the spiking neurons. This has largely constrained the range of applicability of such macroscopic descriptions, particularly when trying to describe neuronal synchronization. Here we provide the derivation of a set of exact macroscopic equations for a network of spiking neurons. Our results reveal that the spike generation mechanism of individual neurons introduces an effective coupling between two biophysically relevant macroscopic quantities, the firing rate and the mean membrane potential, which together govern the evolution of the neuronal network. The resulting equations exactly describe all possible macroscopic dynamical states of the network, including states of synchronous spiking activity. Finally we show that the firing rate description is related, via a conformal map, with a low-dimensional description in terms of the Kuramoto order parameter, called Ott-Antonsen theory. We anticipate our results will be an important tool in investigating how large networks of spiking neurons self-organize in time to process and encode information in the brain.

  14. A pumping system for measuring coastal diffusion coefficients 

    E-Print Network [OSTI]

    Bolen, Zane Kevin

    1980-01-01

    system was used to measure surface horizontal diffusion coefficients in the vicin- ity of the diffuser. These experiments were also used to develop tech- niques of underway sampling as well as measuring site specific horizon- tal diffusion... coefficients. Measurement of horizontal diffusion coef- ficients used a continuous point source of tracer material to produce a plume that could be profiled using the pumping system connected to a fluorometer. The resultant horizontal diffusion coefficients...

  15. Division of Environmental Control Technology Program, 1979. [Lead abstract

    SciTech Connect (OSTI)

    1980-06-01

    Separate abstracts were prepared for the 10 sections in this progress report dealing with environmental engineering. (KRM)

  16. A Comparison of Fick and Maxwell-Stefan Diffusion Formulations in PEMFC Cathode Gas Diffusion Layers

    E-Print Network [OSTI]

    Lindstrom, Michael

    2013-01-01

    This paper explores the mathematical formulations of Fick and Maxwell-Stefan diffusion in the context of polymer electrolyte membrane fuel cell cathode gas diffusion layers. Formulations of diffusion combined with mass-averaged Darcy flow are considered for three component gases. Fick formulations can be considered as approximations of Maxwell-Stefan in a certain sense. For this application, the formulations can be compared computationally in a simple, one dimensional setting. We observe that the predictions of the formulations are very similar, despite their seemingly different structure. Analytic insight is given to the result. In addition, it is seen that for both formulations, diffusion laws are small perturbations from bulk flow. The work is also intended as a reference to multi-component gas diffusion formulations in the fuel cell setting.

  17. Description du Schema de Neige ISBA-ES (Explicit Snow)

    E-Print Network [OSTI]

    Description du Schema de Neige ISBA-ES (Explicit Snow) Aaron Boone April, 2002 Updated in May, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Chapter 1. ISBA-ES general description . . . . . . . . . . . . . . . . 5 1. Snow scheme physics . . . . . . . . . . . . . . . . . . . . . . . . . 7 a. Mass balance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 b. Snow layering

  18. Description du Schema de Neige ISBA-ES (Explicit Snow)

    E-Print Network [OSTI]

    Description du Schema de Neige ISBA-ES (Explicit Snow) Aaron Boone April, 2002 Updated in November . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Chapter 1. ISBA-ES general description . . . . . . . . . . . . . . . . 5 1. Snow scheme physics . . . . . . . . . . . . . . . . . . . . . . . . . 7 a. Mass balance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 b. Snow layering

  19. From Continuation Passing Style to Krivine's Abstract Machine

    E-Print Network [OSTI]

    Selinger, Peter

    From Continuation Passing Style to Krivine's Abstract Machine Peter Selinger Department different extensions of typed lambda calculus, how the rules for a version of Krivine's abstract machine can-in types and primitive functions. We also show how Krivine's abstract machine can be implemented

  20. From Continuation Passing Style to Krivine's Abstract Machine

    E-Print Network [OSTI]

    Selinger, Peter

    From Continuation Passing Style to Krivine's Abstract Machine Peter Selinger Department different extensions of typed lambda calculus, how the rules for a version of Krivine's abstract machine can­in types and primitive functions. We also show how Krivine's abstract machine can be implemented

  1. Library Abstraction for C/C++ Concurrency University of Cambridge

    E-Print Network [OSTI]

    Gotsman, Alexey

    a criterion for library abstraction on the relaxed memory model defined by the new ISO C11 [12] and C++11 [13Library Abstraction for C/C++ Concurrency Mark Batty University of Cambridge Mike Dodds University in this respect, as libraries need not provide sequentially consistent abstractions: to avoid unnecessary

  2. Library Abstraction for C/C++ Concurrency University of Cambridge

    E-Print Network [OSTI]

    Gotsman, Alexey

    a criterion for library abstraction on the relaxed memory model defined by the new ISO C11 [11] and C++11 [12Library Abstraction for C/C++ Concurrency Mark Batty University of Cambridge Mike Dodds University in this respect, as libraries need not provide sequentially consistent abstractions: to avoid unnecessary

  3. To appear in Proc. AAAI'97 Dynamic Abstraction Planning

    E-Print Network [OSTI]

    Krebsbach, Kurt D.

    To appear in Proc. AAAI'97 Dynamic Abstraction Planning Robert P. Goldman, David J. Musliner, Kurt describes Dynamic Abstraction Planning (DAP), an abstraction planning technique that im- proves the e ciency to produce a plan and the size of the resulting plan. The intuition behind this approach is simple: in some

  4. The Impact of Distributed Programming Abstractions on Application Energy Consumption

    E-Print Network [OSTI]

    Tilevich, Eli

    The Impact of Distributed Programming Abstractions on Application Energy Consumption Young-Woo Kwon of their energy consumption patterns. By varying the abstractions with the rest of the functionality fixed, we measure and analyze the impact of distributed programming abstractions on application energy consumption

  5. Math 4333: Intro to Abstract Algebra II Second Exam

    E-Print Network [OSTI]

    Schmidt, Ralf

    Math 4333: Intro to Abstract Algebra II Second Exam Spring 2015, University of Oklahoma 04 credit. 1 20 2 20 3 20 4 20 5 20 TOTAL 100 #12;Math 4333: Intro to Abstract Algebra II Page 2 1. Let f over Q. (20 points) #12;Math 4333: Intro to Abstract Algebra II Page 4 3. a) Find an example

  6. Topology, finite time Lyapunov exponents, and barriers for diffusive transport in advection-diffusion problems

    SciTech Connect (OSTI)

    Tang, Xianzhu [College of William and Mary, Williamsburg, VA (United States); Boozer, A.H. [Columbia Univ., New York, NY (United States)

    1996-12-31

    A wide range of transport problems are of advection-diffusion type. Typical fluid problems of this type are the relaxation of temperature differences in a room or the spread of a contaminant in a river. Important examples in plasma include the relaxation of electrons in a region of stochastic magnetic field lines and the evolution of the magnetic field embedded in a conducting fluid. The archetypal model equation is the advection-diffusion equation. The quantity being transported is {phi}. The flow velocity of the medium, v(x, t), is assumed given and independent of {phi}. The diffusive flux is {Tau}{sub d} = -D{del}{phi}. If the flow is chaotic, the properties of the transport are determined by the spatial and time dependence of the finite time Lyapunov exponent {lambda}({xi}, t). The rapid diffusive transport occurs only along the field line (s line) of the vector s, which defines the stable direction in which neighboring points asymptotically converge. The topology of the s lines affects the diffusive transport through the finite time Lyapunov exponent. We discover that the spatial variation of the finite time Lyapunov exponent along the s lines is smooth and determined by the topology of the s lines. For example, the finite time Lyapunov exponent reaches local minima if the s line makes a sharp bend. These topological bends hinder the diffusive transport and act as a barrier for diffusive relaxation. Such barriers for diffusion reside inside the chaotic region and they persist even the flow is highly chaotic. In the case of the electron relaxation in a region of stochastic field lines, there is a rapid diffusive relaxation of the spatial inhomogeneity in the electron distribution function which is typical of the chaotic transport of a passive scalar. But the diffusive relaxation of the pitch angle distribution is much slower.

  7. 728 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 34, NO. 3, JUNE 2006 The Electron Diffusion Coefficient in Energy

    E-Print Network [OSTI]

    Kaganovich, Igor

    Coefficient in Energy in Bounded Collisional Plasmas Lev D. Tsendin Abstract--The electron energies in typical, the momentum relaxation in collisions with neutrals is sig- nificantly faster than the energy relaxation due be de- scribed by a diffusion coefficient in energy . Both collisional and stochastic heating mechanisms

  8. 988 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 19, NO. 7, JULY 2001 Diffusion of Moisture Through Optical Fiber Coatings

    E-Print Network [OSTI]

    Matthewson, M. John

    Optical Fiber Coatings Janet L. (Armstrong) Mrotek, Member, OSA, M. John Matthewson, and Charles R. Kurkjian Abstract--The strength of polymer-coated fused silica optical fiber is dependent on the ambient moisture because of stress corro- sion. The diffusion rate of water vapor through the polymer coating can

  9. SY101 in situ viscometer instrument system design description

    SciTech Connect (OSTI)

    Pearce, K.L.; Stokes, T.I.; Vagelatos, N.

    1994-08-18

    This documents the design and description of the in situ viscometer, developed for the hydrogen mitigation project.

  10. STEP Energy Coach and Technical Consultant Job Descriptions

    Broader source: Energy.gov [DOE]

    STEP Energy Coach and Technical Consultant Job Descriptions, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  11. Reverse-selective diffusion in nanocomposite membranes

    E-Print Network [OSTI]

    Reghan J. Hill

    2005-10-27

    The permeability of certain polymer membranes with impenetrable nanoinclusions increases with the particle volume fraction (Merkel et al., Science, 296, 2002). This intriguing observation contradicts even qualitative expectations based on Maxwell's classical theory of conduction/diffusion in composites with homogeneous phases. This letter presents a simple theoretical interpretation based on classical models of diffusion and polymer physics. An essential feature of the theory is a polymer-segment depletion layer at the inclusion-polymer interface. The accompanying increase in free volume leads to a significant increase in the local penetrant diffusivity, which, in turn, increases the bulk permeability while exhibiting reverse selectivity. This model captures the observed dependence of the bulk permeability on the inclusion size and volume fraction, providing a straightforward connection between membrane microstructure and performance.

  12. Fission Enhanced diffusion of uranium in zirconia

    E-Print Network [OSTI]

    Bérerd, N; Moncoffre, N; Sainsot, P; Faust, H; Catalette, H

    2005-01-01

    This paper deals with the comparison between thermal and Fission Enhanced Diffusion (FED) of uranium into zirconia, representative of the inner face of cladding tubes. The experiments under irradiation are performed at the Institut Laue Langevin (ILL) in Grenoble using the Lohengrin spectrometer. A thin $^{235}UO\\_2$ layer in direct contact with an oxidized zirconium foil is irradiated in the ILL high flux reactor. The fission product flux is about 10$^{11}$ ions cm$^{-2}$ s$^{-1}$ and the target temperature is measured by an IR pyrometer. A model is proposed to deduce an apparent uranium diffusion coefficient in zirconia from the energy distribution broadening of two selected fission products. It is found to be equal to 10$^{-15}$ cm$^2$ s$^{-1}$ at 480$\\circ$C and compared to uranium thermal diffusion data in ZrO$\\_2$ in the same pressure and temperature conditions. The FED results are analysed in comparison with literature data.

  13. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 8, 1993 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V NATHANIEL B. PALMER, UNITED STATES ANTARCTIC PROGRAM CRUISE 8, 1993 Edited by Thomas R. Janecek Sediment Descriptions Matthew G. Curren Antarctic Marine Geology Research Facility

  14. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 1, 2003 NBP03-01 #12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V NATHANIEL B. PALMER, UNITED STATES ANTARCTIC PROGRAM CRUISE 1, 2003 Edited by Steven B. Petrushak Sediment Descriptions Florida State University Matthew G. Curren Modified by Steven

  15. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 1, 1994 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V NATHANIEL B. PALMER, UNITED STATES ANTARCTIC PROGRAM CRUISE 1, 1994 Edited by Thomas R. Janecek Sediment Descriptions Rice University Hamilton College Colorado University Ms

  16. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 1, 1993 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V NATHANIEL B. PALMER, UNITED STATES ANTARCTIC PROGRAM CRUISE 1, 1993 Edited by Thomas R. Janecek Sediment Descriptions Matthew G. Curren Antarctic Marine Geology Research Facility

  17. Predicting Job Salaries from Text Descriptions Anonymous Author(s)

    E-Print Network [OSTI]

    Freitas, Nando de

    050 051 052 053 Predicting Job Salaries from Text Descriptions Anonymous Author(s) Affiliation Address descriptions of the posted jobs. Many listings provide a salary, but as many as half do not. For those listings that do not provide a salary, it is useful to predict a salary based on the description of that job. We

  18. Self- and zinc diffusion in gallium antimonide

    SciTech Connect (OSTI)

    Nicols, Samuel Piers

    2002-03-26

    The technological age has in large part been driven by the applications of semiconductors, and most notably by silicon. Our lives have been thoroughly changed by devices using the broad range of semiconductor technology developed over the past forty years. Much of the technological development has its foundation in research carried out on the different semiconductors whose properties can be exploited to make transistors, lasers, and many other devices. While the technological focus has largely been on silicon, many other semiconductor systems have applications in industry and offer formidable academic challenges. Diffusion studies belong to the most basic studies in semiconductors, important from both an application as well as research standpoint. Diffusion processes govern the junctions formed for device applications. As the device dimensions are decreased and the dopant concentrations increased, keeping pace with Moore's Law, a deeper understanding of diffusion is necessary to establish and maintain the sharp dopant profiles engineered for optimal device performance. From an academic viewpoint, diffusion in semiconductors allows for the study of point defects. Very few techniques exist which allow for the extraction of as much information of their properties. This study focuses on diffusion in the semiconductor gallium antimonide (GaSb). As will become clear, this compound semiconductor proves to be a powerful one for investigating both self- and foreign atom diffusion. While the results have direct applications for work on GaSb devices, the results should also be taken in the broader context of III-V semiconductors. Results here can be compared and contrasted to results in systems such as GaAs and even GaN, indicating trends within this common group of semiconductors. The results also have direct importance for ternary and quaternary semiconductor systems used in devices such as high speed InP/GaAsSb/InP double heterojunction bipolar transistors (DHBT) [Dvorak, (2001)]. Many of the findings which will be reported here were previously published in three journal articles. Hartmut Bracht was the lead author on two articles on self-diffusion studies in GaSb [Bracht, (2001), (2000)], while this report's author was the lead author on Zn diffusion results [Nicols, (2001)]. Much of the information contained herein can be found in those articles, but a more detailed treatment is presented here.

  19. Analytical solutions to matrix diffusion problems

    SciTech Connect (OSTI)

    Kekäläinen, Pekka

    2014-10-06

    We report an analytical method to solve in a few cases of practical interest the equations which have traditionally been proposed for the matrix diffusion problem. In matrix diffusion, elements dissolved in ground water can penetrate the porous rock surronuding the advective flow paths. In the context of radioactive waste repositories this phenomenon provides a mechanism by which the area of rock surface in contact with advecting elements is greatly enhanced, and can thus be an important delay mechanism. The cases solved are relevant for laboratory as well for in situ experiments. Solutions are given as integral representations well suited for easy numerical solution.

  20. Hamiltonian description of the ideal fluid

    SciTech Connect (OSTI)

    Morrison, P.J.

    1994-01-01

    Fluid mechanics is examined from a Hamiltonian perspective. The Hamiltonian point of view provides a unifying framework; by understanding the Hamiltonian perspective, one knows in advance (within bounds) what answers to expect and what kinds of procedures can be performed. The material is organized into five lectures, on the following topics: rudiments of few-degree-of-freedom Hamiltonian systems illustrated by passive advection in two-dimensional fluids; functional differentiation, two action principles of mechanics, and the action principle and canonical Hamiltonian description of the ideal fluid; noncanonical Hamiltonian dynamics with examples; tutorial on Lie groups and algebras, reduction-realization, and Clebsch variables; and stability and Hamiltonian systems.

  1. On the Hamiltonian Description of Fluid Mechanics

    E-Print Network [OSTI]

    I. Antoniou; G. P. Pronko

    2002-03-14

    We suggest the Hamiltonian approach for fluid mechanics based on the dynamics, formulated in terms of Lagrangian variables. The construction of the canonical variables of the fluid sheds a light of the origin of Clebsh variables, introduced in the previous century. The developed formalism permits to relate the circulation conservation (Tompson theorem) with the invariance of the theory with respect to special diffiomorphisms and establish also the new conservation laws. We discuss also the difference of the Eulerian and Lagrangian description, pointing out the incompleteness of the first. The constructed formalism is also applicable for ideal plasma. We conclude with several remarks on the quantization of the fluid.

  2. Property:Description | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio1975)EnergyFloorAreaOfficesCollaborators JumpDataDescription Jump

  3. Description of Energy Intensity Tables (12)

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet)DecadeYear Jan Feb Mar Apr May Jun Jul AugAdditions1 0Delaware2 1 03. Description

  4. Property:File/Description | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,Property Edit withExplorationTimePerMetricPropertyDescription

  5. Transport-theoretical Description of Nuclear Reactions

    E-Print Network [OSTI]

    O. Buss; T. Gaitanos; K. Gallmeister; H. van Hees; M. Kaskulov; O. Lalakulich; A. B. Larionov; T. Leitner; J. Weil; U. Mosel

    2012-02-02

    In this review we first outline the basics of transport theory and its recent generalization to off-shell transport. We then present in some detail the main ingredients of any transport method using in particular the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) implementation of this theory as an example. We discuss the potentials used, the ground state initialization and the collision term, including the in-medium modifications of the latter. The central part of this review covers applications of GiBUU to a wide class of reactions, starting from pion-induced reactions over proton and antiproton reactions on nuclei to heavy-ion collisions (up to about 30 AGeV). A major part concerns also the description of photon-, electron- and neutrino-induced reactions (in the energy range from a few 100 MeV to a few 100 GeV). For this wide class of reactions GiBUU gives an excellent description with the same physics input and the same code being used. We argue that GiBUU is an indispensable tool for any investigation of nuclear reactions in which final-state interactions play a role. Studies of pion-nucleus interactions, nuclear fragmentation, heavy ion reactions, hyper nucleus formation, hadronization, color transparency, electron-nucleus collisions and neutrino-nucleus interactions are all possible applications of GiBUU and are discussed in this article.

  6. COG Software Architecture Design Description Document

    SciTech Connect (OSTI)

    Buck, R M; Lent, E M

    2009-09-21

    This COG Software Architecture Design Description Document describes the organization and functionality of the COG Multiparticle Monte Carlo Transport Code for radiation shielding and criticality calculations, at a level of detail suitable for guiding a new code developer in the maintenance and enhancement of COG. The intended audience also includes managers and scientists and engineers who wish to have a general knowledge of how the code works. This Document is not intended for end-users. This document covers the software implemented in the standard COG Version 10, as released through RSICC and IAEA. Software resources provided by other institutions will not be covered. This document presents the routines grouped by modules and in the order of the three processing phases. Some routines are used in multiple phases. The routine description is presented once - the first time the routine is referenced. Since this is presented at the level of detail for guiding a new code developer, only the routines invoked by another routine that are significant for the processing phase that is being detailed are presented. An index to all routines detailed is included. Tables for the primary data structures are also presented.

  7. Molecular Modeling of Diffusion on a Crystalline PETN Surface

    SciTech Connect (OSTI)

    Lin, P; Khare, R; Gee, R H; Weeks, B L

    2007-07-13

    Surface diffusion on a PETN crystal was investigated by treating the surface diffusion as an activated process in the formalism of transition state theory. In particular, surface diffusion on the (110) and (101) facets, as well as diffusion between these facets, were considered. We successfully obtained the potential energy barriers required for PETN surface diffusion. Our results show that the (110) surface is more thermally active than the (101) surface and PETN molecules mainly diffuses from the (110) to (101) facet. These results are in good agreement with experimental observations and previous simulations.

  8. Diffusion Processes in Turbulent Magnetic Fields

    E-Print Network [OSTI]

    Alex Lazarian

    2007-07-05

    We study of the effect of turbulence on diffusion processes within magnetized medium. While we exemplify our treatment with heat transfer processes, our results are quite general and are applicable to different processes, e.g. diffusion of heavy elements. Our treatment is also applicable to describing the diffusion of cosmic rays arising from magnetic field wandering. In particular, we find that when the energy injection velocity is smaller than the Alfven speed the heat transfer is partially suppressed, while in the opposite regime the effects of turbulence depend on the intensity of driving. In fact, the scale $l_A$ at which the turbulent velocity is equal the Alfven velocity is a new important parameter. When the electron mean free path $\\lambda$ is larger than $l_A$, the stronger the the turbulence, the lower thermal conductivity by electrons is. The turbulent motions, however, induces their own advective transport, that can provide effective diffusivity. For clusters of galaxies, we find that the turbulence is the most important agent for heat transfer. We also show that the domain of applicability of the subdiffusion concept is rather limited.

  9. Particle Size Dependence of the Ionic Diffusivity

    E-Print Network [OSTI]

    Bazant, Martin Z.

    material for rechargeable lithium batteries, specifically explaining why it functions exclusively on the nanoscale. KEYWORDS Batteries, diffusion, nano, ab initio T he benefit of nanosizing materials on bulk for rechargeable Li+ ion batteries that only operates in batteries when in nanoform, though the results should

  10. Diffusive Acceleration of Ions at Interplanetary Shocks

    E-Print Network [OSTI]

    Matthew G. Baring; Errol J. Summerlin

    2005-06-08

    Heliospheric shocks are excellent systems for testing theories of particle acceleration in their environs. These generally fall into two classes: (1) interplanetary shocks that are linear in their ion acceleration characteristics, with the non-thermal ions serving as test particles, and (2) non-linear systems such as the Earth's bow shock and the solar wind termination shock, where the accelerated ions strongly influence the magnetohydrodynamic structure of the shock. This paper explores the modelling of diffusive acceleration at a particular interplanetary shock, with an emphasis on explaining in situ measurements of ion distribution functions. The observational data for this event was acquired on day 292 of 1991 by the Ulysses mission. The modeling is performed using a well-known kinetic Monte Carlo simulation, which has yielded good agreement with observations at several heliospheric shocks, as have other theoretical techniques, namely hybrid plasma simulations, and numerical solution of the diffusion-convection equation. In this theory/data comparison, it is demonstrated that diffusive acceleration theory can, to first order, successfully account for both the proton distribution data near the shock, and the observation of energetic protons farther upstream of this interplanetary shock than lower energy pick-up protons, using a single turbulence parameter. The principal conclusion is that diffusive acceleration of inflowing upstream ions can model this pick-up ion-rich event without the invoking any seed pre-acceleration mechanism, though this investigation does not rule out the action of such pre-acceleration.

  11. APPARENT PULSE DIFFUSION DUE TO DISORDERED MICROSTRUCTURE

    E-Print Network [OSTI]

    Solna, Knut

    APPARENT PULSE DIFFUSION DUE TO DISORDERED MICROSTRUCTURE A. Nachbin \\Lambda and K. Sølna y \\Lambda, and it is important to describe when and how fine scale heterogeneities interact with a traveling seismic pulse. We are interested in pulse shaped waves that interact with the rapidly varying features (i.e. microstruture

  12. Magnetic flux diffusion through HTS shields

    E-Print Network [OSTI]

    Wong, Kai-Wai; Fan, C. X.; Havenhill, A. D.

    1998-06-01

    Slow field leakage in a polycrystalline superconducting cupshield placed in an external axial field (H-ext) much weaker than H-C1 shows a diffusive time dependence with a time scale of 10(2) s. As the field strength increases but is still less than...

  13. Forecasting Turbulent Modes with Nonparametric Diffusion Models

    E-Print Network [OSTI]

    Tyrus Berry; John Harlim

    2015-01-27

    This paper presents a nonparametric diffusion modeling approach for forecasting partially observed noisy turbulent modes. The proposed forecast model uses a basis of smooth functions (constructed with the diffusion maps algorithm) to represent probability densities, so that the forecast model becomes a linear map in this basis. We estimate this linear map by exploiting a previously established rigorous connection between the discrete time shift map and the semi-group solution associated to the backward Kolmogorov equation. In order to smooth the noisy data, we apply diffusion maps to a delay embedding of the noisy data, which also helps to account for the interactions between the observed and unobserved modes. We show that this delay embedding biases the geometry of the data in a way which extracts the most predictable component of the dynamics. The resulting model approximates the semigroup solutions of the generator of the underlying dynamics in the limit of large data and in the observation noise limit. We will show numerical examples on a wide-range of well-studied turbulent modes, including the Fourier modes of the energy conserving Truncated Burgers-Hopf (TBH) model, the Lorenz-96 model in weakly chaotic to fully turbulent regimes, and the barotropic modes of a quasi-geostrophic model with baroclinic instabilities. In these examples, forecasting skills of the nonparametric diffusion model are compared to a wide-range of stochastic parametric modeling approaches, which account for the nonlinear interactions between the observed and unobserved modes with white and colored noises.

  14. Reaction-diffusion approach in soft diffraction

    E-Print Network [OSTI]

    Rodion Kolevatov; Konstantin Boreskov

    2013-11-29

    We apply the reaction-diffusion (stochastic) approach to the numerical calculation of the elastic amplitude in the Reggeon Field Theory (RFT) and its single diffractive cut. Fits to the total, integrated and differential elastic cross sections with account of all Pomeron loops are reported together with all-loop calculation of the single difraction dissociation cross section.

  15. Diffusion in Flexible Pipes Susanne Brogaard Kristensen

    E-Print Network [OSTI]

    . . . . . . . . . . . . . . . . . . . . . 51 7.5.3 Carbon dioxide diffusion . . . . . . . . . . . . . . . . . 52 7.5.4 52Effect of C it may cause the outer sheath to burst. Also if large amounts of carbon dioxide, hydrogen sulfide . . . . . . . . . . . . . . . . . . . . . . . 39 1 . #12;7.3 Thermodynamic properties , . . . . . . . . . . . . . . . . . . . 45 7.4 First approach

  16. Cosmic ray penetration in diffuse clouds

    E-Print Network [OSTI]

    Morlino, G; Krause, J

    2015-01-01

    Cosmic rays are a fundamental source of ionization for molecular and diffuse clouds, influencing their chemical, thermal, and dynamical evolution. The amount of cosmic rays inside a cloud also determines the $\\gamma$-ray flux produced by hadronic collisions between cosmic rays and cloud material. We study the spectrum of cosmic rays inside and outside of a diffuse cloud, by solving the stationary transport equation for cosmic rays including diffusion, advection and energy losses due to ionization of neutral hydrogen atoms. We found that the cosmic ray spectrum inside a diffuse cloud differs from the one in the interstellar medium (ISM) for energies smaller than $E_{br}\\approx 100$ MeV, irrespective of the model details. Below $E_{br}$, the spectrum is harder (softer) than that in the ISM if the latter is a power law $\\propto p^{-s}$ with $s$ larger (smaller) than $\\sim0.42$. As a consequence also the ionization rate due to CRs is strongly affected. Assuming an average Galactic spectrum similar to the one infe...

  17. Modeling experimental results of diffusion of alkaline solutions through a compacted bentonite barrier

    SciTech Connect (OSTI)

    Fernandez, Raul; Cuevas, Jaime; Maeder, Urs K.

    2010-08-15

    The interaction between concrete/cement and swelling clay (bentonite) has been modeled in the context of engineered barrier systems for deep geological disposal of high-level radioactive waste. The geochemical transformations observed in laboratory diffusion experiments at 60 and 90 {sup o}C between bentonite and different high-pH solutions (K-Na-OH and Ca(OH){sub 2}-saturated) were reconciled with the reactive transport code CrunchFlow. For K-Na-OH solutions (pH = 13.5 at 25 {sup o}C) partial dissolution of montmorillonite and precipitation of Mg-silicates (talc-like), hydrotalcite and brucite at the interface are predicted at 60 {sup o}C, while at 90 {sup o}C the alteration is wider. Alkaline cations diffused beyond the mineralogical alteration zone by means of exchange with Mg{sup 2+} in the interlayer region of montmorillonite. Very slow reactivity and minor alteration of the clay are predicted in the Ca(OH){sub 2}-bentonite system. The model is a reasonable description of the experiments but also demonstrates the difficulties in modeling processes operating at a small scale under a diffusive regime.

  18. Math 4323: Intro to Abstract Algebra Second Exam

    E-Print Network [OSTI]

    Schmidt, Ralf

    Math 4323: Intro to Abstract Algebra Second Exam Fall 2014, University of Oklahoma 10/29/2014 Ralf credit. 1 20 2 20 3 20 4 20 5 20 TOTAL 100 #12;Math 4323: Intro to Abstract Algebra Page 2 1. Give)(23)(46512). (20 points) #12;Math 4323: Intro to Abstract Algebra Page 4 3. Prove that the map from U(16) to itself

  19. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    throughput diffusion chamber cultivation approach to isolation of novel environmental bacteria relevant to DOE missions To use the optimized method to identify and cultivate novel...

  20. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Folding KineticsFinal Report Cover Page Bakajin O BASIC BIOLOGICAL SCIENCES ENGINEERING CONSUMPTION RATES DEAD TIME DETECTION DIFFUSION DNA ENERGY TRANSFER FABRICATION...

  1. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Nuclear magnetic resonance measurement of ammonia diffusion in dense solid liquid slurries Revision Bobroff S Phillips R J Univ of California Davis CA United States Dept of...

  2. Abstract: Development and Deployment of a Short Rotation Woody...

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

    Development and Deployment of a Short Rotation Woody Crops Harvesting System Based on a Case New Holland Forage Harvester and SRC Woody Crop Header Abstract: Development and...

  3. THE TH SYMPOSIUM ON ANALYSIS & PDES AbstRActs Giovanni ...

    E-Print Network [OSTI]

    2009-05-25

    Patricia Bauman, Purdue University. Existence of solutions to boundary value problems for smectic liquid crys- .... An eigenvalue partition problem. Abstract. TBA.

  4. Deep Borehole Disposal of Spent Fuel. Brady, Patrick V. Abstract...

    Office of Scientific and Technical Information (OSTI)

    Spent Fuel. Brady, Patrick V. Abstract not provided. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States) USDOE National Nuclear Security Administration (NNSA)...

  5. Alamos National Laboratory] Materials Science(36) Abstract Not...

    Office of Scientific and Technical Information (OSTI)

    Co-Design at the Mesoscale: Opportunities for NSLS-II Sarrao, John L. Los Alamos National Laboratory Materials Science(36) Abstract Not Provided Los Alamos National Laboratory...

  6. 7th international symposium on photosynthetic prokaryotes. Abstracts

    SciTech Connect (OSTI)

    Fuller, R.C.

    1991-12-31

    This book contains the abstracts of all the presentations made either in oral or poster form, at the VII International Symposium on Photosynthetic Prokaryotes.

  7. Selected Translated Abstracts of Chinese-Language Climate Change Publications

    SciTech Connect (OSTI)

    Cushman, R.M.; Burtis, M.D.

    1999-05-01

    This report contains English-translated abstracts of important Chinese-language literature concerning global climate change for the years 1995-1998. This body of literature includes the topics of adaptation, ancient climate change, climate variation, the East Asia monsoon, historical climate change, impacts, modeling, and radiation and trace-gas emissions. In addition to the biological citations and abstracts translated into English, this report presents the original citations and abstracts in Chinese. Author and title indexes are included to assist the reader in locating abstracts of particular interest.

  8. 2nd Annual DOE-ERSP PI Meeting: Abstracts

    E-Print Network [OSTI]

    Hazen, Terry C.

    2007-01-01

    geochemistry. Abstracts Synthesis of Goethite-Coated SandSynthesis of GCS using the heterogeneous suspension method was a two-step process, wherein pure goethite

  9. SYSTEM DEMONSTRATION NATURAL LANGUAGE GENERATION WITH ABSTRACT MACHINE

    E-Print Network [OSTI]

    ~it Tiibingen 72074 Tiibingen, Germany shuly©sf s.nphi i.uni-tueb ingen, de Abstract" We present a system

  10. Self-Diffusion and Collective Diffusion of Charged colloids Studied by Dynamic Light Scattering

    E-Print Network [OSTI]

    Jacqueline Appell; Grégoire Porte; Eric Buhler

    2005-06-24

    A microemulsion of decane droplets stabilized by a non-ionic surfactant film is progressively charged by substitution of a non-ionic surfactant molecule by a cationic surfactant. We check that the microemulsion droplets remain identical within the explored range of volume fraction (0.02 to 0.18) and of the number of charge per droplets (0 to 40) . We probe the dynamics of these microemulsions by dynamic light scattering. Despite the similar structure of the uncharged and charged microemulsions the dynamics are very different . In the neutral microemulsion the fluctuations of polarization relax, as is well known, via the collective diffusion of the droplets. In the charged microemulsions, two modes of relaxation are observed. The fast one is ascribed classically to the collective diffusion of the charged droplets coupled to the diffusion of the counterions. The slow one has, to our knowledge, not been observed previously neither in similar microemulsions nor in charged spherical colloids. We show that the slow mode is also diffusive and suggest that its possible origine is the relaxation of local charge fluctuations via local exchange of droplets bearing different number of charges . The diffusion coefficient associated with this mode is then the self diffusion coefficient of the droplets.

  11. Fractionation of soil gases by diffusion of water vapor, gravitational settling, and thermal diffusion

    SciTech Connect (OSTI)

    Severinghaus, J.P.; Bender, M.L. [Univ. of Rhode Island, RI (United States)] [Univ. of Rhode Island, RI (United States); Keeling, R.F. [Scripps Institution of Oceanography, LaJolla, CA (United States)] [Scripps Institution of Oceanography, LaJolla, CA (United States); Broecker, W.S. [Lamont-Doherty Earth Observatory, Palisades, NY (United States)] [Lamont-Doherty Earth Observatory, Palisades, NY (United States)

    1996-03-01

    Air sampled from the moist unsaturated zone in a sand dune exhibits depletion in the heavy isotopes of N{sub 2} and O{sub 2}. We propose that the depletion is caused by a diffusive flux of water vapor out of the dune, which sweeps out the other gases, forcing them to diffuse back into the dune. The heavy isotopes of N{sub 2} and O{sub 2} diffuse back more slowly, resulting in a steady-state depletion of the heavy isotopesin the dune interior. We predict the effect`s magnitude with molecular diffusion theory and reproduce it in a laboratory simulation, finding good agreement between field, theory, and lab. The magnitude of the effect is governed by the ratio of the binary diffusivities against water vapor of a pair of gases, and increases {approximately} linearly with the difference between the water vapor mole fraction of the site and the advectively mixed reservoir with which it is in diffusive contact (in most cases the atmosphere). 32 refs., 1 fig., 3 tabs.

  12. Diapycnal advection by double diffusion and turbulence in the ocean

    E-Print Network [OSTI]

    St. Laurent, Louis C

    1999-01-01

    Observations of diapycnal mixing rates are examined and related to diapycnal advection for both double-diffusive and turbulent regimes. The role of double-diffusive mixing at the site of the North Atlantic Tracer Release ...

  13. Moisture Diffusion in Asphalt Binders and Fine Aggregate Mixtures 

    E-Print Network [OSTI]

    Vasconcelos, Kamilla L.

    2011-08-08

    cost in highway maintenance and vehicle operations. One key mechanism of how moisture reaches the asphalt-aggregate interface is by its permeation or diffusion through the asphalt binder or mastic. Different techniques are available for diffusion...

  14. Modelling of unidirectional thermal diffusers in shallow water

    E-Print Network [OSTI]

    Lee, Joseph Hun-Wei

    1977-01-01

    This study is an experimental and theoretical investigation of the temperature field and velocity field induced by a unidirectional thermal diffuser in shallow water. A multiport thermal diffuser is essentially a pipe laid ...

  15. The effects of double-diffusion on a baroclinic vortex

    E-Print Network [OSTI]

    Smith, Wendy Marie

    1987-01-01

    Laboratory experiments were performed to study the combined effects of double-diffusion and rotation on an oceanic intrusion. Intrusions are driven across density-compensated fronts by the divergence of the double-diffusive ...

  16. Dynamics of multiphoton excitation and quantum diffusion in Rydberg atoms

    E-Print Network [OSTI]

    Chu, Shih-I; Wang, Kwanghsi

    1989-02-15

    with a different excitation mechanism. In this paper, we emphasize the study of the two major excitation mechanisms: quantum diffusion and multiphoton resonant excitation. The region dominated by quantum diffusion lies in the frequency range ?c

  17. Role of carbon surface diffusion and strain on the epitaxial...

    Office of Scientific and Technical Information (OSTI)

    Role of carbon surface diffusion and strain on the epitaxial growth of graphene on SiC(0001). Citation Details In-Document Search Title: Role of carbon surface diffusion and strain...

  18. DIFFUSION IN DEFORMABLE MEDIA R. E. SHOWALTER

    E-Print Network [OSTI]

    . This consists of the mathemat- ical description of the dynamics of the pore-fluid pressure and the solid stress and the fluid dynamics. For example, compression of the medium leads to increased pore pressure, if the compression is fast relative to the fluid flow rate. Conversely, an increase in pore pressure induces

  19. POSTER ABSTRACT A Web-page Fragmentation Technique for Personalized

    E-Print Network [OSTI]

    POSTER ABSTRACT A Web-page Fragmentation Technique for Personalized Browsing Bouras Christos@cti.gr ABSTRACT In this paper, a technique is presented that allows web sites viewers to build personalized web and reduces the cost of browsing the web by minimizing the data that have to be downloaded. It is based

  20. The Lambda Library: Lambda Abstraction in C++ Jaakko Jarvi

    E-Print Network [OSTI]

    Lumsdaine, Andrew

    provides means to define unnamed functions). In this paper we intro- duce the Lambda Library which fixesThe Lambda Library: Lambda Abstraction in C++ Jaakko J¨arvi Turku Centre for Computer Science (TUCS. gwpowell@hotmail.com Abstract The Lambda Library (LL) adds a form of lambda ab- straction to C++. The LL

  1. RENEWAL THEORY IN ANALYSIS OF TRIES AND STRINGS: EXTENDED ABSTRACT

    E-Print Network [OSTI]

    Janson, Svante

    of this paper is to make propaganda for the use of renewal theory to study e.g. Markov models, even if we doRENEWAL THEORY IN ANALYSIS OF TRIES AND STRINGS: EXTENDED ABSTRACT SVANTE JANSON Abstract. We give a survey of a number of simple applications of renewal theory to problems on random strings, in particular

  2. Hanford Personnel Dosimeter supporting studies FY-1980. [Lead abstract

    SciTech Connect (OSTI)

    Endres, G.W.R.; Cummings, F.M.; Aldrich, J.M.; Thorson, M.R.; Kathren, R.L.

    1981-02-01

    Separate abstracts were prepared for the 10 sections of this report which describe fundamental characteristics of the Hanford multipurpose personnel dosimeter (HMPD). Abstracts were not prepared for Appendix A and Appendix B which deal with calculated standard deviations for 100 mrem mixed field exposures and detailed calculations of standard deviations, respectively. (KRM)

  3. Abstract polymer models with general pair interactions Aldo Procacci

    E-Print Network [OSTI]

    Procacci, Aldo

    Abstract polymer models with general pair interactions Aldo Procacci Dep. Matem´atica-ICEx, UFMG (i.e. not necessarily hard core or repulsive). A concrete example is given in which polymers are r0 (possibly attractive), of the type 1/rd+ with > 0. 1. Introduction The abstract polymer gas is an important

  4. Privacy Enhanced Fraud Resistant Road Pricing (extended abstract)

    E-Print Network [OSTI]

    Hoepman, Jaap-Henk

    for the current road tax. The announcement of the Dutch authorities stirred a large public debate which stillPrivacy Enhanced Fraud Resistant Road Pricing (extended abstract) Jaap-Henk Hoepman1,2 , George, University of Groningen, the Netherlands g.b.huitema@rug.nl Abstract. A naive implementation of a road

  5. Fast, waitfree (2k \\Gamma 1)Renaming (Extended abstract)

    E-Print Network [OSTI]

    Afek, Yehuda

    Fast, wait­free (2k \\Gamma 1)­Renaming (Extended abstract) Yehuda Afek \\Lambda Michael Merritt y Abstract We describe a fast, wait­free (2k \\Gamma 1)­renaming algo­ rithm which takes O(k 2 ) time. (Where, including a fast (long­lived) atomic snapshot algorithm, are briefly discussed. 1 Introduction Since early

  6. "Large" Abstractions for Software Engineering Dewayne E Perry

    E-Print Network [OSTI]

    Perry, Dewayne E.

    "Large" Abstractions for Software Engineering Dewayne E Perry The Department of Electrical that provide critical distinctions about our field of software engineering as a whole; abstractions that enable do software engineering. I give a number of examples and delineate why I think they have been

  7. Timed Relational Abstractions For Sampled Data Control Systems

    E-Print Network [OSTI]

    Sankaranarayanan, Sriram

    Timed Relational Abstractions For Sampled Data Control Systems Aditya Zutshi1 , Sriram relational abstractions for verifying sampled data control systems. Sampled data control systems consist of a plant, modeled as a hybrid system and a synchronous controller, modeled as a discrete transition system

  8. Java Separate Type Checking is not Safe (Extended Abstract)

    E-Print Network [OSTI]

    Robbiano, Lorenzo

    Java Separate Type Checking is not Safe (Extended Abstract) Davide Ancona, Giovanni Lagorio,lagorio,zuccag@disi.unige.it Abstract. Java supports separate type-checking in the sense that com- pilation can be invoked on a single in the environment. However, the Java speci#12;cation does not de#12;ne precise rules on how this process should

  9. Abstraction and Implementation of a Lightweight Distributed Termination Protocol

    E-Print Network [OSTI]

    Dobson, Simon

    Abstraction and Implementation of a Lightweight Distributed Termination Protocol D.M. Goodeve , C, University of Leeds, UK Department of Computer Science, Trinity College Dublin, Eire Abstract Termination synchronisation on this state costly. Many parallel applica- tions are structured such that termination occurs

  10. Abstract True Concurrency: Adhesive Processes Paolo Baldan1

    E-Print Network [OSTI]

    Baldan, Paolo

    Abstract True Concurrency: Adhesive Processes Paolo Baldan1 , Andrea Corradini2 , Tobias Heindel3 Abstract. Rewriting systems over adhesive categories have been re- cently introduced as a general framework semantics for adhesive rewriting sys- tems by defining the fundamental notion of process, well-known from

  11. EGS Abstract for MEAN RADIUS, MASS AND INERTIA FOR REFERENCE

    E-Print Network [OSTI]

    EGS Abstract for Nice, 2000 MEAN RADIUS, MASS AND INERTIA FOR REFERENCE EARTH'S MODELS. F. CHAMBAT between real and mean Earth. Abstracts to be submitted on or before December 15, 1999 to EGS OÆce Max-Planck-Str. 13 37191 Katlenburg-Lindau Germany Tel.: [+49] 5556-1440 Fax.: [+49] 5556-4709 Email: EGS

  12. RENEWAL THEORY IN ANALYSIS OF TRIES AND STRINGS: EXTENDED ABSTRACT

    E-Print Network [OSTI]

    Janson, Svante

    RENEWAL THEORY IN ANALYSIS OF TRIES AND STRINGS: EXTENDED ABSTRACT SVANTE JANSON Abstract. We give a survey of a number of simple applications of renewal theory to problems on random strings, in particular to tries and Khodak and Tunstall codes. 1. Introduction Although it long has been realized that renewal

  13. Abstract Interpretation with Alien Expressions and Heap Structures

    E-Print Network [OSTI]

    Leino, K. Rustan M.

    Abstract Interpretation with Alien Expressions and Heap Structures Bor-Yuh Evan Chang0, and K constraint mentions other, alien, function or relation symbols, it is ignored (that is, it is very coarsely over-approximated) by the abstract domain. Rather than building in special treatment of such alien

  14. Data Abstraction In Cognitive Models for Compositional Design in Painting

    E-Print Network [OSTI]

    Peterson, James K

    Data Abstraction In Cognitive Models for Compositional Design in Painting James Peterson Linda Dzuris June 19, 2003 Abstract In this paper, we discuss the design of painting data, which is neutral the process of artistic design for eventual use in the development of an autonomous painting composition

  15. Radiogenic Source Identification for the Helium Production-Diffusion ...

    E-Print Network [OSTI]

    2012-10-17

    Oct 18, 2012 ... Key words: Inverse source problem, production-diffusion equation, Tikhonov regularization. 1 Introduction. Helium isotopes are used ...

  16. Diffusing acoustic wave spectroscopy M. L. Cowan,1

    E-Print Network [OSTI]

    Page, John

    Diffusing acoustic wave spectroscopy M. L. Cowan,1 I. P. Jones,1, * J. H. Page,1,2, and D. A. Weitz called diffusing acoustic wave spec- troscopy DAWS . In this technique, the motion of the scatterers e the particle velocity correlation function. Potential appli- cations of diffusing acoustic wave spectroscopy

  17. Proton Diffusion in Nickel Hydroxide Prediction of Active Material Utilization

    E-Print Network [OSTI]

    Weidner, John W.

    Proton Diffusion in Nickel Hydroxide Prediction of Active Material Utilization Sathya Motupally of the active material is controlled by the diffusion rate of protons through the film. This hypothesis- tion by including the effect of proton diffusion through the active material of the nickel electrode.6

  18. Transport approximations in partially diffusive media Guillaume Bal

    E-Print Network [OSTI]

    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

  19. Technical Note Correction of Eddy-Current Distortions in Diffusion

    E-Print Network [OSTI]

    Technical Note Correction of Eddy-Current Distortions in Diffusion Tensor Images Using the Known,2 Purpose: To correct eddy-current artifacts in diffusion ten- sor (DT) images without the need to obtain- tortions caused by eddy currents induced by large diffusion gradients. We propose a new postacquisition

  20. Usage Policies Notebook for Thermco Atmospheric Diffusion Furnace system

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Usage Policies Notebook for Thermco Atmospheric Diffusion Furnace system Revision date September 2014 #12;2 Emergency Plan for Diffusion Furnaces Standard Operating Procedures for Emergencies Contact;4 Usage Policies for Thermco Atmospheric Diffusion Furnace Standard policies for usage The Atmospheric

  1. Optoelectronic switches based on diffusive conduction Hilmi Volkan Demira

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    Optoelectronic switches based on diffusive conduction Hilmi Volkan Demira and Fatih Hakan Koklu the process of diffusive conduction that we use in our optoelectronic switches to achieve rapid optical switching on a picosecond time scale . We present the characteristic Green's function of the diffusive

  2. A model for the diffuse attenuation coefficient of downwelling irradiance

    E-Print Network [OSTI]

    Lee, Zhongping

    A model for the diffuse attenuation coefficient of downwelling irradiance Zhong-Ping Lee1 Naval] The diffuse attenuation coefficient for downwelling irradiance (Kd) is an important parameter for ocean of downwelling irradiance, J. Geophys. Res., 110, C02016, doi:10.1029/2004JC002275. 1. Introduction [2] Diffuse

  3. Repeated interaction model for diffusion-induced Ramsey narrowing

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    Repeated interaction model for diffusion-induced Ramsey narrowing Yanhong Xiao 1, Irina Novikova 2. Xiao et al., Phys. Rev. Lett. 96, 043601 (2006)] we characterized diffusion-induced Ramsey narrowing presentation of the repeated interaction model of diffusion-induced Ramsey narrowing, with particular focus

  4. A Diffusion Model in Population Genetics with Mutation and Dynamic

    E-Print Network [OSTI]

    O'Leary, Michael

    A Diffusion Model in Population Genetics with Mutation and Dynamic Fitness Mike O'Leary Department of Mathematics Towson University May 24, 2008 Mike O'Leary (Towson University) A Diffusion Model in Genetics May Miller, Georgetown University Mike O'Leary (Towson University) A Diffusion Model in Genetics May 24, 2008

  5. Chapter 1 Introduction 1.1 Why Diffusion in Polymers

    E-Print Network [OSTI]

    Goddard III, William A.

    I - 1 Chapter 1 Introduction 1.1 Why Diffusion in Polymers Various industrial applications of polymers involve diffusion of gases through polymersi . Membrane separation of gases in the gas and oil involve impeding the diffusion of gases through thin polymer films, commonly used as packaging food

  6. Variational principle for general diffusion problems June 28, 2004

    E-Print Network [OSTI]

    Tudorascu, Adrian

    -homogeneous nonlinear diffusion problems (of Fokker-Planck type) with time dependent coefficients. This work greatly with time-interpolants of minimizers arising from Wasserstein-type implicit schemes ([1], [11], [13], [14]: diffusion in plasmas, surface growth and transport of fluid in porous media, relative diffusion in turbulent

  7. Intermittency in Turbulent Diffusion Models with a Mean Gradient

    E-Print Network [OSTI]

    Majda, Andrew J.

    Intermittency in Turbulent Diffusion Models with a Mean Gradient Andrew J Majda and Xin T TongE30, 62G32 Submitted to: Nonlinearity 1. Introduction Turbulent diffusion is the transportation and diffusion. Its application ranges from the spread of hazardous plumes and mixing properties of turbulent

  8. DETAILED CHEMISTRY MODELING OF LAMINAR DIFFUSION FLAMES ON PARALLEL COMPUTERS

    E-Print Network [OSTI]

    . The gas­jet diffusion flame is the basic element of many combustion systems, such as gas turbines, ram­speed, three­dimensional, turbulent reacting systems, gas­jet laminar diffusion flames constitute a problem jets, and industrial furnaces. Furthermore, the fundamental understand­ ing of laminar diffusion flames

  9. Biosensor as a Reaction-Diffusion System

    E-Print Network [OSTI]

    Ghosh, Surya K; Sain, Anirban

    2012-01-01

    We model a biosensor as a reaction-diffusion process in a confined geometry. When a solution containing unknown concentration of antigens are injected into the closed chamber of the sensor, the antigens diffuse and react with a functionalised surface. These surface reactions are then converted to an optical signal, the intensity of which indicates the level of antigen content in the solution. We probe the spatio-temporal behavior of the system by studying the governing equations, using mean field approximation and numerical integration. Mean field analysis gives important insights about the dynamics, but in order to compare with real experiments and extract the values of the relevant kinetic parameters, numerical integration was necessary. We track down the operating conditions for quick and efficient response of the sensor.

  10. Reaction Diffusion patterns in Pseudoplatystoma fishes

    E-Print Network [OSTI]

    Aldo Ledesma-Durán; Héctor Juárez-Valencia; Iván Santamaría-Holek

    2016-01-05

    This paper studies how patterns derived from a system of reaction-diffusion equations may vary significantly depending upon boundary and initial conditions, as well as in the spatial dependence of the coefficients involved. From an extensive numerical study of the BVAM model, we demonstrate that the geometric pattern of a reaction-diffusion system is not uniquely determined by the value of the parameters in the equation. From this result, we suggest that the variability of patterns among individuals of the same species may have its roots in this sensitivity. Furthermore, this study analyzes briefly how the inclusion of the advection and the space dependency in the parameters of the model influences the forms of a specific pattern. The results of this study are compared to the skin patterns that appear in Pseudoplatystom} fishes.

  11. Diffusive Shock Acceleration: the Fermi Mechanism

    E-Print Network [OSTI]

    Matthew G. Baring

    1997-11-16

    The mechanism of diffusive Fermi acceleration at collisionless plasma shock waves is widely invoked in astrophysics to explain the appearance of non-thermal particle populations in a variety of environments, including sites of cosmic ray production, and is observed to operate at several sites in the heliosphere. This review outlines the principal results from the theory of diffusive shock acceleration, focusing first on how it produces power-law distributions in test-particle regimes, where the shock dynamics are dominated by the thermal populations that provide the seed particles for the acceleration process. Then the importance of non-linear modifications to the shock hydrodynamics by the accelerated particles is addressed, emphasizing how these subsequently influence non-thermal spectral formation.

  12. Diffusion barriers in modified air brazes

    DOE Patents [OSTI]

    Weil, Kenneth Scott (Richland, WA); Hardy, John S. (Richland, WA); Kim, Jin Yong (Richland, WA); Choi, Jung-Pyung (Richland, WA)

    2010-04-06

    A method for joining two ceramic parts, or a ceramic part and a metal part, and the joint formed thereby. The method provides two or more parts, a braze consisting of a mixture of copper oxide and silver, a diffusion barrier, and then heats the braze for a time and at a temperature sufficient to form the braze into a bond holding the two or more parts together. The diffusion barrier is an oxidizable metal that forms either a homogeneous component of the braze, a heterogeneous component of the braze, a separate layer bordering the braze, or combinations thereof. The oxidizable metal is selected from the group Al, Mg, Cr, Si, Ni, Co, Mn, Ti, Zr, Hf, Pt, Pd, Au, lanthanides, and combinations thereof.

  13. Memory effects and active Brownian diffusion

    E-Print Network [OSTI]

    Ghosh, Pulak K; Marchegiani, Giampiero; Marchesoni, Fabio

    2015-01-01

    A self-propelled artificial microswimmer is often modeled as a ballistic Brownian particle moving with constant speed aligned along one of its axis, but changing direction due to random collisions with the environment. Similarly to thermal noise, its angular randomization is described as a memoryless stochastic process. Here, we speculate that finite-time correlations in the orientational dynamics can affect the swimmer's diffusivity. To this purpose we propose and solve two alternative models. In the first one we simply assume that the environmental fluctuations governing the swimmer's propulsion are exponentially correlated in time, whereas in the second one we account for possible damped fluctuations of the propulsion velocity around the swimmer's axis. The corresponding swimmer's diffusion constants are predicted to get, respectively, enhanced or suppressed upon increasing the model memory time. Possible consequences of this effect on the interpretation of the experimental data are discussed.

  14. Memory effects and active Brownian diffusion

    E-Print Network [OSTI]

    Pulak K. Ghosh; Yunyun Li; Giampiero Marchegiani; Fabio Marchesoni

    2015-11-19

    A self-propelled artificial microswimmer is often modeled as a ballistic Brownian particle moving with constant speed aligned along one of its axis, but changing direction due to random collisions with the environment. Similarly to thermal noise, its angular randomization is described as a memoryless stochastic process. Here, we speculate that finite-time correlations in the orientational dynamics can affect the swimmer's diffusivity. To this purpose we propose and solve two alternative models. In the first one we simply assume that the environmental fluctuations governing the swimmer's propulsion are exponentially correlated in time, whereas in the second one we account for possible damped fluctuations of the propulsion velocity around the swimmer's axis. The corresponding swimmer's diffusion constants are predicted to get, respectively, enhanced or suppressed upon increasing the model memory time. Possible consequences of this effect on the interpretation of the experimental data are discussed.

  15. Methodology and apparatus for diffuse photon mimaging

    DOE Patents [OSTI]

    Feng, Shechao C. (Los Angeles, CA); Zeng, Fanan (Los Angeles, CA); Zhao, Hui-Lin (Los Angeles, CA)

    1997-12-09

    Non-invasive near infrared optical medical imaging devices for both hematoma detection in the brain and early tumor detection in the breast is achieved using image reconstruction which allows a mapping of the position dependent contrast diffusive propagation constants, which are related to the optical absorption coefficient and scattering coefficient in the tissue, at near infrared wavelengths. Spatial resolutions in the range of 5 mm for adult brain sizes and breast sizes can be achieved. The image reconstruction utilizes WKB approximation on most probable diffusion paths which has as lowest order approximation the straight line-of-sight between the plurality of sources and the plurality of detectors. The WKB approximation yields a set of linear equations in which the contrast optical absorption coefficients are the unknowns and for which signals can be generated to produce a pixel map of the contrast optical resolution of the scanned tissue.

  16. Methodology and apparatus for diffuse photon imaging

    DOE Patents [OSTI]

    Feng, S.C.; Zeng, F.; Zhao, H.L.

    1997-12-09

    Non-invasive near infrared optical medical imaging devices for both hematoma detection in the brain and early tumor detection in the breast is achieved using image reconstruction which allows a mapping of the position dependent contrast diffusive propagation constants, which are related to the optical absorption coefficient and scattering coefficient in the tissue, at near infrared wavelengths. Spatial resolutions in the range of 5 mm for adult brain sizes and breast sizes can be achieved. The image reconstruction utilizes WKB approximation on most probable diffusion paths which has as lowest order approximation the straight line-of-sight between the plurality of sources and the plurality of detectors. The WKB approximation yields a set of linear equations in which the contrast optical absorption coefficients are the unknowns and for which signals can be generated to produce a pixel map of the contrast optical resolution of the scanned tissue. 58 figs.

  17. State protection under collective damping and diffusion

    SciTech Connect (OSTI)

    Ponte, M. A. de [Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Caixa Postal 369, 13560-590 Sao Carlos, SP (Brazil); Departamento de Fisica, Universidade Regional do Cariri, 63010-970 Juazeiro do Norte, CE (Brazil); Mizrahi, S. S. [Departamento de Fisica, Universidade Federal de Sao Carlos, 13565-905 Sao Carlos, SP (Brazil); Moussa, M. H. Y. [Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Caixa Postal 369, 13560-590 Sao Carlos, SP (Brazil)

    2011-07-15

    In this paper we provide a recipe for state protection in a network of oscillators under collective damping and diffusion. Our strategy is to manipulate the network topology, i.e., the way the oscillators are coupled together, the strength of their couplings, and their natural frequencies, in order to create a relaxation-diffusion-free channel. This protected channel defines a decoherence-free subspace (DFS) for nonzero-temperature reservoirs. Our development also furnishes an alternative approach to build up DFSs that offers two advantages over the conventional method: it enables the derivation of all the network-protected states at once, and also reveals, through the network normal modes, the mechanism behind the emergence of these protected domains.

  18. Diffusion barriers in modified air brazes

    DOE Patents [OSTI]

    Weil, Kenneth Scott; Hardy, John S; Kim, Jin Yong; Choi, Jung-Pyung

    2013-04-23

    A method for joining two ceramic parts, or a ceramic part and a metal part, and the joint formed thereby. The method provides two or more parts, a braze consisting of a mixture of copper oxide and silver, a diffusion barrier, and then heats the braze for a time and at a temperature sufficient to form the braze into a bond holding the two or more parts together. The diffusion barrier is an oxidizable metal that forms either a homogeneous component of the braze, a heterogeneous component of the braze, a separate layer bordering the braze, or combinations thereof. The oxidizable metal is selected from the group Al, Mg, Cr, Si, Ni, Co, Mn, Ti, Zr, Hf, Pt, Pd, Au, lanthanides, and combinations thereof.

  19. Diffuse-dynamic multiparameter diffractometry: A review

    SciTech Connect (OSTI)

    Molodkin, V. B. Shpak, A. P.; Kovalchuk, M. V.; Nosik, V. L.; Machulin, V. F.

    2010-12-15

    The results reported at the Conference on Application of X-Rays, Synchrotron Radiation, Neutrons, and Electrons in Nano-, Bio-, Information-, and Cognitive Technologies (RSNE-NBIC 2009) are briefly reviewed. This review is based on a cycle of studies [1-6] where a new method for studying the structure of real crystals-diffuse-dynamic multiparameter diffractometry (DDMD)-was proposed and substantiated.

  20. Glass Membrane For Controlled Diffusion Of Gases

    DOE Patents [OSTI]

    Shelby, James E. (Alfred Station, NY); Kenyon, Brian E. (Pittsburgh, PA)

    2001-05-15

    A glass structure for controlled permeability of gases includes a glass vessel. The glass vessel has walls and a hollow center for receiving a gas. The glass vessel contains a metal oxide dopant formed with at least one metal selected from the group consisting of transition metals and rare earth metals for controlling diffusion of the gas through the walls of the glass vessel. The vessel releases the gas through its walls upon exposure to a radiation source.

  1. Ethan Burns (UNH) Abstraction in Multicore Heuristic Search 1 / 31 Parallel Best-First Search: The Role of Abstraction

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Abstraction in Multicore Heuristic Search ­ 1 / 31 Parallel Best-First Search: The Role of Abstraction Ethan Burns1, Sofia Lemons1, Wheeler Ruml1 and Rong Zhou2 1 2 [Many thanks to NSF s Best-first Search s Parallel Search PRA* PBNF Optimal Search Suboptimal Search Conclusion Ethan Burns

  2. Multicomponent Gas Diffusion in Porous Electrodes

    E-Print Network [OSTI]

    Fu, Yeqing; Dutta, Abhijit; Mohanram, Aravind; Pietras, John D; Bazant, Martin Z

    2014-01-01

    Multicomponent gas transport is investigated with unprecedented precision by AC impedance analysis of porous YSZ anode-supported solid oxide fuel cells. A fuel gas mixture of H2-H2O-N2 is fed to the anode, and impedance data are measured across the range of hydrogen partial pressure (10-100%) for open circuit conditions at three temperatures (800C, 850C and 900C) and for 300mA applied current at 800C. For the first time, analytical formulae for the diffusion resistance (Rb) of three standard models of multicomponent gas transport (Fick, Stefan-Maxwell, and Dusty Gas) are derived and tested against the impedance data. The tortuosity is the only fitting parameter since all the diffusion coefficients are known. Only the Dusty Gas model leads to a remarkable data collapse for over twenty experimental conditions, using a constant tortuosity consistent with permeability measurements and the Bruggeman relation. These results establish the accuracy of the Dusty Gas model for multicomponent gas diffusion in porous med...

  3. Transport and diffusion in the embedding map

    E-Print Network [OSTI]

    N. Nirmal Thyagu; Neelima Gupte

    2009-05-20

    We study the transport properties of passive inertial particles in a $2-d$ incompressible flows. Here the particle dynamics is represented by the $4-d$ dissipative embedding map of $2-d$ area-preserving standard map which models the incompressible flow. The system is a model for impurity dynamics in a fluid and is characterized by two parameters, the inertia parameter $\\alpha$, and the dissipation parameter $\\gamma$. We obtain the statistical characterisers of transport for this system in these dynamical regimes. These are, the recurrence time statistics, the diffusion constant, and the distribution of jump lengths. The recurrence time distribution shows a power law tail in the dynamical regimes where there is preferential concentration of particles in sticky regions of the phase space, and an exponential decay in mixing regimes. The diffusion constant shows behaviour of three types - normal, subdiffusive and superdiffusive, depending on the parameter regimes. Phase diagrams of the system are constructed to differentiate different types of diffusion behaviour, as well as the behaviour of the absolute drift. We correlate the dynamical regimes seen for the system at different parameter values with the transport properties observed at these regimes, and in the behaviour of the transients. This system also shows the existence of a crisis and unstable dimension variability at certain parameter values. The signature of the unstable dimension variability is seen in the statistical characterisers of transport. We discuss the implications of our results for realistic systems.

  4. Detector dependency of diffusive quantum monitorings

    E-Print Network [OSTI]

    Shakib Daryanoosh; Howard M. Wiseman; Jay M. Gambetta

    2015-05-01

    Continuous measurements play a pivotal role in the study of dynamical open quantum systems. `Dyne' detections are among the most widespread and efficient measurement schemes, and give rise to quantum diffusion of the conditioned state. In this work we study under what conditions the detector dependency of the conditional state of a quantum system subject to diffusive monitoring can be demonstrated experimentally, in the sense of ruling our any detector-independent pure-state dynamical model for the system. We consider an arbitrary number L of environments to which the system is coupled, and an arbitrary number K of different types of dyne detections. We prove that non-trivial necessary conditions for such a demonstration can be determined efficiently by semi-definite programming. To determine sufficient conditions, different physical environmental couplings and Hamiltonians for a qubit, and different sets of diffusive monitorings are scrutinized. We compare the threshold efficiencies that are sufficient in the various cases, as well as cases previously considered in the literature, to suggest the most feasible experimental options.

  5. A Convergent Reaction-Diffusion Master Equation

    E-Print Network [OSTI]

    Samuel A Isaacson

    2013-06-28

    The reaction-diffusion master equation (RDME) is a lattice stochastic reaction-diffusion model that has been used to study spatially distributed cellular processes. The RDME is often interpreted as an approximation to spatially-continuous models in which molecules move by Brownian motion and react by one of several mechanisms when sufficiently close. In the limit that the lattice spacing approaches zero, in two or more dimensions, the RDME has been shown to lose bimolecular reactions. The RDME is therefore not a convergent approximation to any spatially-continuous model that incorporates bimolecular reactions. In this work we derive a new convergent RDME (CRDME) by finite volume discretization of a spatially-continuous stochastic reaction-diffusion model popularized by Doi. We demonstrate the numerical convergence of reaction time statistics associated with the CRDME. For sufficiently large lattice spacings or slow bimolecular reaction rates, we also show the reaction time statistics of the CRDME may be approximated by those from the RDME. The original RDME may therefore be interpreted as an approximation to the CRDME in several asymptotic limits.

  6. Diffusion Processes Satisfying a Conservation Law Constraint

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

    Bakosi, J.; Ristorcelli, J. R.

    2014-03-04

    We investigate coupled stochastic differential equations governing N non-negative continuous random variables that satisfy a conservation principle. In various fields a conservation law requires that a set of fluctuating variables be non-negative and (if appropriately normalized) sum to one. As a result, any stochastic differential equation model to be realizable must not produce events outside of the allowed sample space. We develop a set of constraints on the drift and diffusion terms of such stochastic models to ensure that both the non-negativity and the unit-sum conservation law constraint are satisfied as the variables evolve in time. We investigate the consequencesmore »of the developed constraints on the Fokker-Planck equation, the associated system of stochastic differential equations, and the evolution equations of the first four moments of the probability density function. We show that random variables, satisfying a conservation law constraint, represented by stochastic diffusion processes, must have diffusion terms that are coupled and nonlinear. The set of constraints developed enables the development of statistical representations of fluctuating variables satisfying a conservation law. We exemplify the results with the bivariate beta process and the multivariate Wright-Fisher, Dirichlet, and Lochner’s generalized Dirichlet processes.« less

  7. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    the experimental method and Free Precession Method descriptions and then experimental design elements ending with a summary A new nEDM experiment is under development with a...

  8. BSCProgramDescriptionDocumentJan2005.doc | Department of Energy

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

    BSCProgramDescriptionDocumentJan2005.doc&0; More Documents & Publications Acquisition Guide Chapter 1.2 - Balanced Scorecard Performance Assessment Program - (March 2004)...

  9. New Mexico Hydrogen Fuels Challenge Program Description The New...

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

    New Mexico Hydrogen Fuels Challenge Program Description The New Mexico Hydrogen Fuels Challenge is an event that provides a hands-on opportunity for middle school students (grades...

  10. Microsoft Word - 338M_Geothermal_Project_Descriptions

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

    Location (City) Project Location (State) Description ORMAT Nevada, Inc. 4,911,330 Maui HI ORMAT Nevada will use a combination of technologies to locate fault zones within...

  11. Description of induced nuclear fission with Skyrme energy functionals...

    Office of Scientific and Technical Information (OSTI)

    content will become publicly available on March 24, 2016 Title: Description of induced nuclear fission with Skyrme energy functionals. II. Finite temperature effects Authors:...

  12. Description of induced nuclear fission with Skyrme energy functionals...

    Office of Scientific and Technical Information (OSTI)

    fragment properties Citation Details In-Document Search Title: Description of induced nuclear fission with Skyrme energy functionals: Static potential energy surfaces and fission...

  13. Descriptions of ESPC Task Order Schedules and Placement of Pricing...

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

    Document provides task order schedule descriptions and information on the placement of pricing for energy savings performance contracts (ESPCs). 54descriptionoftoschedulesj5....

  14. AHTR Refueling Systems and Process Description

    SciTech Connect (OSTI)

    Varma, V.K.; Holcomb, D.E.; Bradley, E.C.; Zaharia, N.M.; Cooper, E.J.

    2012-07-15

    The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt–cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy’s Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published [1], and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, however, does include a description of the materials envisioned for the various components and the instrumentation necessary to control the refueling process. The report begins with an overview of the refueling strategy. Next a mechanical description of the AHTR fuel assemblies and core is provided. The reactor vessel upper assemblies are then described. Following this the refueling path structures and the refueling mechanisms and components are described. The sequence of operations necessary to fuel and defuel the reactor is then discussed. The report concludes with a discussion of the levels of maturity of the various SSCs to provide guidance for future technology developments. The conceptual design information presented in this report is very preliminary in nature. Significant uncertainty remains about several aspects of the process and even the radiation and mechanical performance of plate-type coated-particle fuel.

  15. AHTR Refueling Systems and Process Description

    SciTech Connect (OSTI)

    Varma, Venugopal Koikal; Holcomb, David Eugene; Bradley, Eric Craig; Zaharia, Nathaniel M; Cooper, Eliott J

    2012-07-01

    The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt-cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy's Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, however, does include a description of the materials envisioned for the various components and the instrumentation necessary to control the refueling process. The report begins with an overview of the refueling strategy. Next a mechanical description of the AHTR fuel assemblies and core is provided. The reactor vessel upper assemblies are then described. Following this the refueling path structures and the refueling mechanisms and components are described. The sequence of operations necessary to fuel and defuel the reactor is then discussed. The report concludes with a discussion of the levels of maturity of the various SSCs to provide guidance for future technology developments. The conceptual design information presented in this report is very preliminary in nature. Significant uncertainty remains about several aspects of the process and even the radiation and mechanical performance of plate-type coated-particle fuel.

  16. Diffuse ?-ray emission from galactic pulsars

    SciTech Connect (OSTI)

    Calore, F. [GRAPPA Institute, University of Amsterdam, Science Park 904, 1090 GL Amsterdam (Netherlands); Di Mauro, M.; Donato, F., E-mail: f.calore@uva.nl, E-mail: mattia.dimauro@to.infn.it, E-mail: donato@to.infn.it [Dipartimento di Fisica, Torino University and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy)

    2014-11-20

    Millisecond pulsars (MSPs) are old fast-spinning neutron stars that represent the second most abundant source population discovered by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope (Fermi). As guaranteed ?-ray emitters, they might contribute non-negligibly to the diffuse emission measured at high latitudes by Fermi-LAT (i.e., the Isotropic Diffuse ?-Ray Background (IDGRB)), which is believed to arise from the superposition of several components of galactic and extragalactic origin. Additionally, ?-ray sources also contribute to the anisotropy of the IDGRB measured on small scales by Fermi-LAT. In this manuscript we aim to assess the contribution of the unresolved counterpart of the detected MSPs population to the IDGRB and the maximal fraction of the measured anisotropy produced by this source class. To this end, we model the MSPs' spatial distribution in the Galaxy and the ?-ray emission parameters by considering observational constraints coming from the Australia Telescope National Facility pulsar catalog and the Second Fermi-LAT Catalog of ?-ray pulsars. By simulating a large number of MSP populations through a Monte Carlo simulation, we compute the average diffuse emission and the anisotropy 1? upper limit. We find that the emission from unresolved MSPs at 2 GeV, where the peak of the spectrum is located, is at most 0.9% of the measured IDGRB above 10° in latitude. The 1? upper limit on the angular power for unresolved MSP sources turns out to be about a factor of 60 smaller than Fermi-LAT measurements above 30°. Our results indicate that this galactic source class represents a negligible contributor to the high-latitude ?-ray sky and confirm that most of the intensity and geometrical properties of the measured diffuse emission are imputable to other extragalactic source classes (e.g., blazars, misaligned active galactic nuclei, or star-forming galaxies). Nevertheless, because MSPs are more concentrated toward the galactic center, we expect them to contribute significantly to the ?-ray diffuse emission at low latitudes. Because, along the galactic disk, the population of young pulsars overcomes in number that of MSPs, we compute the ?-ray emission from the whole population of unresolved pulsars, both young and millisecond, in two low-latitude regions: the inner Galaxy and the galactic center.

  17. Waste Form and Indrift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary

    SciTech Connect (OSTI)

    R. Aguilar

    2003-06-24

    This Model Report describes the analysis and abstractions of the colloids process model for the waste form and engineered barrier system components of the total system performance assessment calculations to be performed with the Total System Performance Assessment-License Application model. Included in this report is a description of (1) the types and concentrations of colloids that could be generated in the waste package from degradation of waste forms and the corrosion of the waste package materials, (2) types and concentrations of colloids produced from the steel components of the repository and their potential role in radionuclide transport, and (3) types and concentrations of colloids present in natural waters in the vicinity of Yucca Mountain. Additionally, attachment/detachment characteristics and mechanisms of colloids anticipated in the repository are addressed and discussed. The abstraction of the process model is intended to capture the most important characteristics of radionuclide-colloid behavior for use in predicting the potential impact of colloid-facilitated radionuclide transport on repository performance.

  18. Systematic variations in argon diffusion in feldspars: Constraints on diffusion lengthscales, diffusive anisotropy, and non-linear Arrhenius arrays and implications for noble gas thermochronometry

    E-Print Network [OSTI]

    Cassata, William

    2012-01-01

    pluton from 40 Ar/ 39 Ar geochronology and thermal modeling.for 40 Ar/ 39 Ar geochronology of naturally deformed rocks.1995. Multipath diffusion in geochronology. Contributions to

  19. Unsteady behavior of locally strained diffusion flames affected by curvature and preferential diffusion

    SciTech Connect (OSTI)

    Yoshida, Kenji; Takagi, Toshimi

    1999-07-01

    Experimental and numerical studies are made of transient H{sub 2}/N{sub 2}--air counterflow diffusion flames unsteadily strained by an impinging micro jet. Two-dimensional temperature measurements by laser Rayleigh scattering method and numerical computations taking into account detailed chemical kinetics are conducted paying attention to transient local extinction and reignition in relation to the unsteadiness, flame curvature and preferential diffusion effects. The results are as follows. (1) Transient local flame extinction is observed where the micro jet impinges. But, the transient flame can survive instantaneously in spite of quite high stretch rate where the steady flame cannot exist. (2) Reignition is observed after the local extinction due to the micro air jet impingement. The temperature after reignition becomes significantly higher than that of the original flame. This high temperature is induced by the concentration of H{sub 2} species due to the preferential diffusion in relation to the concave curvature. The predicted behaviors of the local transient extinction and reignition are well confirmed by the experiments. (3) The reignition is induced after the formation of combustible premixed gas mixture and the consequent flame propagation. (4) The reignition is hardly observed after the extinction by micro fuel jet impingement. This is due to the dilution of H{sub 2} species induced by the preferential diffusion in relation to the convex curvature. (5) The maximum flame temperature cannot be rationalized by the stretch rate but changes widely depending on the unsteadiness and the flame curvature in relation with preferential diffusion.

  20. Symplectic map description of Halley's comet dynamics

    E-Print Network [OSTI]

    G. Rollin; P. Haag; J. Lages

    2015-02-02

    The main features of 1P/Halley chaotic dynamics can be described by a two dimensional symplectic map. Using Mel'nikov integral we semi-analytically determine such a map for 1P/Halley taking into account gravitational interactions from the Sun and the eight planets. We determine the Solar system kick function ie the energy transfer to 1P/Halley along one passage through the Solar system. Our procedure allows to compute for each planet its contribution to the Solar system kick function which appears to be the sum of the Keplerian potential of the planet and of a rotating circular gravitational dipole potential due to the Sun movement around Solar system barycenter. We test the robustness of the symplectic Halley map by directly integrating Newton's equations over $\\sim 2.4\\cdot 10^4$ yr around Y2K and by reconstructing the Solar system kick function. Our results show that the Halley map with fixed parameters gives a reliable description of comet dynamics on time scales of $10^4$ yr while on a larger scales the parameters of the map are slowly changing due to slow oscillations of orbital momentum.

  1. SERS internship Fall 1992--Spring 1993: Abstract and research papers

    SciTech Connect (OSTI)

    Not Available

    1993-08-05

    This report contains the abstracts and research papers by students on a variety of topics in engineering, genetics, solid state physics, thermonuclear energy, astrophysics, and other science related topics.

  2. Earth Sciences Division annual report 1981. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1982-09-01

    Separate abstracts were prepared for the 59 papers of the 1981 annual report of the Earth Sciences Division at Lawrence Berkeley Laboratory. The general topics covered included nuclear waste isolation, geophysics and reservoir engineering, and geosciences. (KRM)

  3. thesis abstract: Ecology and biogeography of island parasitoid faunas

    E-Print Network [OSTI]

    Santos, Ana M. C.

    2012-01-01

    ISSN 1948-6596 news and update thesis abstract Ecology andM. C. Santos 1,2,3 PhD Thesis, Silwood Park Campus, Divisionmainland counterparts. In this thesis I investigated whether

  4. Multi-camera: interactive rendering of abstract digital images 

    E-Print Network [OSTI]

    Smith, Jeffrey Statler

    2004-09-30

    The purpose of this thesis is the development of an interactive computer-generated rendering system that provides artists with the ability to create abstract paintings simply and intuitively. This system allows the user to distort a computer...

  5. Graph Coloring on a Coarse Grained Multiprocessor (extended abstract)

    E-Print Network [OSTI]

    Gebremedhin, Assefaw Hadish

    Graph Coloring on a Coarse Grained Multiprocessor (extended abstract) Assefaw Hadish Gebremedhin1 Allwright et al. (1995). However, in a recent result, Gebremedhin and Manne (1999a, 1999b) present

  6. Fast Directed Model Checking via Russian Doll Abstraction

    E-Print Network [OSTI]

    Hoffmann, Jörg -FR 6.2

    Fast Directed Model Checking via Russian Doll Abstraction Sebastian Kupferschmid1 , J¨org Hoffmann2 on a kind of Russian Doll principle, where the heuristic for a given problem arises through using UPPAAL

  7. Small Business Innovation Research. Abstracts of Phase I awards, 1999

    SciTech Connect (OSTI)

    None

    1999-12-01

    This booklet presents technical abstracts of Phase I awards made in Fiscal Year (FY) 1999 under the DOE Small Business Innovation Research (SBIR) program. SBIR research explores innovative concepts in important technological and scientific areas that can lead to valuable new technology and products. The work described in the abstracts is novel, high-risk research, but the benefits will also be potentially high if the objectives are met. Brief comments on the potential applications, as described by the awardee, are given after each abstract. Individuals and organizations, including venture capital and larger industrial firms, with an interest in the research described in any of the abstracts are encouraged to contact the appropriate small business directly.

  8. Automatic Abstraction Refinement for Generalized Symbolic Trajectory Evaluation

    E-Print Network [OSTI]

    Xie, Fei

    state representation (a.k.a., quaternary abstraction) which, however, is also their weakness variables (a.k.a., precise nodes) to represent the state space more accurately or (2) specification

  9. 4th Annual DOE-ERSP PI Meeting: Abstracts

    E-Print Network [OSTI]

    Hazen, Terry C.

    2009-01-01

    measuring metabolism, chemistry, and uranium solubility atchemistry and uranyl speciation that generally decreases aqueous uraniumUranium Groundwater Flux Session: Student Abstract Stucker Valerie Stucker, Department of Chemistry and

  10. The Bioelectromagnetic Society Thirteenth Annual Meeting 1991: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    This volume contains author abstracts representing oral and poster presentations made at the Thirteenth Annual Meeting of The Bioelectromagnetic Society held in Salt Lake City, Utah June 23--27, 1991.

  11. CALL FOR PAPERS & PRESENTATIONS Abstracts due by September 15, 2014

    E-Print Network [OSTI]

    Su, Xiao

    Energy conservation and efficiency, energy storage modeling, hybrid vehicles, emissions reduction savings, energy storage devices, regenerative braking, smart electrical supply Abstract can be submitted System safety approaches, safety data management, risk analysis approaches, accident avoidance, accident

  12. Abstracts and research accomplishments of university coal research projects

    SciTech Connect (OSTI)

    Not Available

    1991-06-01

    The Principal Investigators of the grants supported by the University Coal Research Program were requested to submit abstracts and highlight accomplishments of their projects in time for distribution at a grantees conference. This book is a compilation of the material received in response to the request. Abstracts discuss the following area: coal science, coal surface science, reaction chemistry, advanced process concepts, engineering fundamentals and thermodynamics, environmental science.

  13. Oxygen diffusion of anodic surface oxide film on titanium studied by Auger electron spectroscopy. [Oxygen diffusivity

    SciTech Connect (OSTI)

    Wang, P.S.; Wittberg, T.N.; Keil, R.G.

    1982-01-01

    TiO/sub 2/ films of about 1000 A were grown onto titanium foils anodically under galvanostatic conditions at 20 mA/cm/sup 2/ in saturated aqueous solutions of ammonium tetraborate. The samples were then aged at 450, 500, and 550/sup 0/C, and oxygen diffusion was observed by Auger electron spectroscopy (AES) profilings. The oxygen diffusivities were calculated by Fick's Second Law, using the Boltzmann-Matano solution, to be 9.4 x 10/sup -17/, 2.6 x 10/sup -16/, and 1.2 x 10/sup -15/ cm/sup 2//sec at 450, 500, and 550/sup 0/C, respectively. The diffusivities obtained by this method were also compared with those obtained using an exact solution to Fick's Second Law. The activation energy was calculated to be 30 kcal/mole.

  14. A Description Logic Based Approach to Reasoning about Web Services

    E-Print Network [OSTI]

    Baader, Franz

    A Description Logic Based Approach to Reasoning about Web Services Franz Baader1 , Carsten Lutz1-founded and al- gorithmically managable formalisms for describing the func- tionality of Web services, we, which are important for Web service discovery and composition. 1. INTRODUCTION Description logics [3

  15. Visual Unit Analysis: A Descriptive Approach to Landscape Assessment1

    E-Print Network [OSTI]

    Visual Unit Analysis: A Descriptive Approach to Landscape Assessment1 R. J. Tetlow, and S. R. J are critical. The Visual Unit concept appears to offer a logical and useful framework for description and evaluation. The concept subdivides landscape into coherent, spatially-defined units. This study extends

  16. SEDIMENT DESCRIPTIONS R/V NATHANIEL B. PALMER

    E-Print Network [OSTI]

    #12;#12;SEDIMENT DESCRIPTIONS for R/V NATHANIEL B. PALMER Cruise 7, 1994 #12;#12;DESCRIPTIONS OF SEDIMENT RECOVERED BY THE R/V NATHANIEL B. PALMER, UNITED STATES ANTARCTIC PROGRAM CRUISE 7, 1994 Edited............................................................................................... 17 SEDIMENT CLASSIFICATION

  17. Database Description with SDM: A Semantic Database Model

    E-Print Network [OSTI]

    McLeod, Dennis

    Database Description with SDM: A Semantic Database Model MICHAEL HAMMER Massachusetts Institute of Technology and DENNIS McLEOD University of Southern California SDM is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed

  18. Descriptive Control Theory (student & postdoc, 2007 to next Friday)

    E-Print Network [OSTI]

    Clarke, Edmund M.

    Descriptive Control Theory Sicun Gao (student & postdoc, 2007 to next Friday) #12;Thank you, Ed] #12;We need a logical and computational "overhaul" of control theory that sets the foundation-critical systems. #12;Descriptive control theory aims to study · Computational complexity · Automated reasoning

  19. Banach Spaces and Descriptive Set Theory: Selected Topics

    E-Print Network [OSTI]

    Dodos, Pandelis

    Banach Spaces and Descriptive Set Theory: Selected Topics Pandelis Dodos #12;ii #12;Preface and their parameterized versions. The previous material is used in Chapter 7 which is, somehow, the goal of these notes of the "Handbook of the Geometry of Banach spaces" [JL1, JL2]. In the third appendix we give a short description

  20. UO{sub 3} plant turnover - facility description document

    SciTech Connect (OSTI)

    Clapp, D.A.

    1995-01-01

    This document was developed to provide a facility description for those portions of the UO{sub 3} Facility being transferred to Bechtel Hanford Company, Inc. (BHI) following completion of facility deactivation. The facility and deactivated state condition description is intended only to serve as an overview of the plant as it is being transferred to BHI.