Sample records for multi-stakeholder group consisting

  1. DOE Convenes Multi-stakeholder Process to Address Privacy for...

    Energy Savers [EERE]

    DOE Convenes Multi-stakeholder Process to Address Privacy for Data Enabled by Smart Grid Technologies DOE Convenes Multi-stakeholder Process to Address Privacy for Data Enabled by...

  2. Consistent Multigroup Theory Enabling Accurate Course-Group Simulation of Gen IV Reactors

    SciTech Connect (OSTI)

    Rahnema, Farzad; Haghighat, Alireza; Ougouag, Abderrafi

    2013-11-29T23:59:59.000Z

    The objective of this proposal is the development of a consistent multi-group theory that accurately accounts for the energy-angle coupling associated with collapsed-group cross sections. This will allow for coarse-group transport and diffusion theory calculations that exhibit continuous energy accuracy and implicitly treat cross- section resonances. This is of particular importance when considering the highly heterogeneous and optically thin reactor designs within the Next Generation Nuclear Plant (NGNP) framework. In such reactors, ignoring the influence of anisotropy in the angular flux on the collapsed cross section, especially at the interface between core and reflector near which control rods are located, results in inaccurate estimates of the rod worth, a serious safety concern. The scope of this project will include the development and verification of a new multi-group theory enabling high-fidelity transport and diffusion calculations in coarse groups, as well as a methodology for the implementation of this method in existing codes. This will allow for a higher accuracy solution of reactor problems while using fewer groups and will reduce the computational expense. The proposed research represents a fundamental advancement in the understanding and improvement of multi- group theory for reactor analysis.

  3. A few-group delayed neutron model based on a consistent set of decay constants

    SciTech Connect (OSTI)

    Campbell, J.M.; Spriggs, G.D.

    1998-01-22T23:59:59.000Z

    As part of an international effort, the Los Alamos National Laboratory has been asked to (1) determine if there is a set of dominant precursors that are common to all fissionable isotopes and all incident neutron energies, (2) expand the existing experimentally-measured few-group models commonly used in the nuclear industry into their 8-group equivalent using a consistent set of decay constants corresponding to these dominant precursors, and (3) formulate new group spectra for the equivalent 8-group model. In response to this request, LANL has calculated the theoretical delayed neutron yield for 14 different isotopes using three different incident neutron spectra (i.e., thermal, fast, and 14.1 MeV) using the current fission-yield and emission probability data found in ENDF-VI. An example of these results is shown in a figure in which the theoretical delayed neutron yields for the 271 precursors produced during thermal fission of {sup 235}U are plotted against the half-lives of the precursors. By comparing the results of all 14 isotopes, a preliminary set of precursors has been identified that are dominant within the various half-life regimes of the delayed neutron precursors. Also plotted on a figure are the group yields of the 8-group equivalent model of Keepin`s 6-group model. And finally, an example of the delayed neutron spectra for group 7 in the 8-group equivalent model is shown. A final report summarizing all results is expected to be released for review by the international steering committee by the summer of 1998.

  4. Few-group delayed neutron model based on a consistent set of decay constants

    SciTech Connect (OSTI)

    Campbell, J.M.; Spriggs, G.D. [Los Alamos National Lab., NM (United States)

    1998-09-01T23:59:59.000Z

    During the past 50 yr, more than 200 individual sets of delayed neutron parameters have been measured for 20 different fissionable isotopes. As readily observed from these experimental results, the abundances and the decay constants for each group can vary significantly from isotope to isotope as well as varying as a function of the incident neutron energy. From a reactor dynamic standpoint, variations in the decay constants lead to additional complexity when trying to predict the dynamic behavior of reactor systems that contain two or more fissioning isotopes. For example, the six-group point-reactor model must be expanded to include six differential equations describing the precursors produced by each fissioning isotope. Hence, for a system containing five fissioning isotopes, 30 differential equations would be required to describe the total delayed neutron activity. The objective of this paper is to present a status report of the first phase of an international effort to develop a new set of delayed neutron parameters that are based on a-consistent set of decay constants that simplifies the delayed neutron model in reactor dynamic calculations.

  5. Consistency between renormalization group running of chiral operator and counting rule -- Case of chiral pion production operator --

    E-Print Network [OSTI]

    Satoshi X. Nakamura; Anders Gardestig

    2009-11-10T23:59:59.000Z

    In nuclear chiral perturbation theory (ChPT), an operator is defined in a space with a cutoff which may be varied within a certain range. The operator runs as a result of the variation of the cutoff [renormalization group (RG) running]. In order for ChPT to be useful, the operator should run in a way consistent with the counting rule; that is, the running of chiral counter terms have to be of natural size. We vary the cutoff using the Wilsonian renormalization group (WRG) equation, and examine this consistency. As an example, we study the s-wave pion production operator for NN\\to d pi, derived in ChPT. We demonstrate that the WRG running does not generate any chiral-symmetry-violating (CSV) interaction, provided that we start with an operator which does not contain a CSV term. We analytically show how the counter terms are generated in the WRG running in case of the infinitesimal cutoff reduction. Based on the analytic result, we argue a range of the cutoff variation for which the running of the counter terms is of natural size. Then, we numerically confirm this.

  6. OPEN COMPUTING FACILITY Group Account Application Form 1. Pick an account name. It must consist of between three and eight lowercase letters (no spaces, numbers, underscores,

    E-Print Network [OSTI]

    Walker, Matthew P.

    OPEN COMPUTING FACILITY Group Account Application Form 1. Pick an account name. It must consist of between three and eight lowercase letters (no spaces, numbers, underscores, or other symbols), and it must be based on the group's name or initials. Requested Account Name: 2. Pick a password. The password must

  7. Multi-stakeholder collaborations & biomarker development and implementation

    E-Print Network [OSTI]

    Liu, Tingyu

    2014-01-01T23:59:59.000Z

    The rise of genomic technologies and increasing interest in personalized medicine have triggered a renewed focus on the role of biomarkers in drug development and clinical care. While many stakeholders, including industry, ...

  8. Combustion Group Group members

    E-Print Network [OSTI]

    Wang, Wei

    Combustion Group Group members: Thierry Poinsot, Emilien Courtine, Luc Vervisch, Benjamin Farcy 2014 #12;Combustion Group Combustion Physics and Modeling Pollutants, Emissions, and Soot Formation Thermoacoustics and Combustion Dynamics Research focus § Examine mechanisms responsible for flame stabilization

  9. Sandro Catanzaro Thesis 1 May 2006 Multi-Stakeholder Quantitative Analysis of

    E-Print Network [OSTI]

    Gabrieli, John

    Buenos Aires Submitted to the System Design and Management Program and the Aeronautics and Astronautics and Management and Master of Science in Aeronautics and Astronautics at the Massachusetts Institute of Technology Sandro N. Catanzaro System Design & Management Program and Aeronautics and Astronautics Department May

  10. DOE Convenes Multi-stakeholder Process to Address Privacy for Data Enabled

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy, OAPM |TRU Waste Cleanup at Bettis DOE CompletesDepartment ofby

  11. Notice of an Open Meeting on February 26, 2013 of the Multi-stakeholder

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment of Energy NorthB O N N E VProcess To Develop a

  12. Evaluation of Consistent Logical Checkpointing

    E-Print Network [OSTI]

    Kaul, Surbhi

    1995-01-01T23:59:59.000Z

    is cliscussed in more cletail in the next chapter lvhich pr smlts tht val'iations of the consist( nt logical ?heckpointing scheme. Applicatiuu '('('Itl& L's(&r Cu Illnunication The next set of experime!its !s pet fol meri uitli aii application lvith a...

  13. Combustion Group Group members

    E-Print Network [OSTI]

    Wang, Wei

    Combustion Group Group members: Thierry Poinsot, Emilien Courtine, Luc Vervisch, Benjamin Farcy § New combustion and energy-conversion concepts #12;Introduction Combustion research thrusts Combustion Dynamics and Flame-Stabilization Research objectives § Obtain fundamental understanding of combustion

  14. Consistently violating the non-Gaussian consistency relation

    E-Print Network [OSTI]

    Mooij, Sander; Romano, Antonio E

    2015-01-01T23:59:59.000Z

    Non-attractor models of inflation are characterized by the super-horizon evolution of curvature perturbations, introducing a violation of the non-Gaussian consistency relation between the bispectrum's squeezed limit and the power spectrum's spectral index. In this work we show that the bispectrum's squeezed limit of non-attractor models continues to respect a relation dictated by the evolution of the background. We show how to derive this relation using only symmetry arguments, without ever needing to solve the equations of motion for the perturbations.

  15. Consistent Kaluza-Klein truncations via exceptional field theory

    E-Print Network [OSTI]

    Hohm, Olaf

    We present the generalized Scherk-Schwarz reduction ansatz for the full supersymmetric exceptional field theory in terms of group valued twist matrices subject to consistency equations. With this ansatz the field equations ...

  16. Emergent noncommutative gravity from a consistent deformation of gauge theory

    SciTech Connect (OSTI)

    Cortese, Ignacio; Garcia, J Antonio [Departamento de Fisica de Altas Energias, Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico D. F. 04510 (Mexico)

    2010-05-15T23:59:59.000Z

    Starting from a standard noncommutative gauge theory and using the Seiberg-Witten map, we propose a new version of a noncommutative gravity. We use consistent deformation theory starting from a free gauge action and gauging a killing symmetry of the background metric to construct a deformation of the gauge theory that we can relate with gravity. The result of this consistent deformation of the gauge theory is nonpolynomial in A{sub {mu}.} From here we can construct a version of noncommutative gravity that is simpler than previous attempts. Our proposal is consistent and is not plagued with the problems of other approaches like twist symmetries or gauging other groups.

  17. Making Sequential Consistency Practical in TitaniumPractical in Titanium

    E-Print Network [OSTI]

    California at Berkeley, University of

    Making Sequential Consistency Practical in TitaniumPractical in Titanium Amir Kamil, Jimmy Su, and Katherine Yelick, y , Titanium Group http://titanium.cs.berkeley.edu U.C. Berkeley November 15 2005November by another threadthread · Titanium, Java, UPC, and many other languages do not provide sequentiallanguages do

  18. The UK Woodland Assurance Standard Second Edition

    E-Print Network [OSTI]

    processes. Seven years on, it is clear that the working group which prepared the standard produced a first Kingdom. This second edition has again been developed by a multi-stakeholder steering group whose work

  19. Consistent neutron kinetics data generation for nodal transient calculations

    SciTech Connect (OSTI)

    Akdeniz, B. [Penn State Univ., Nuclear Engineering Program, Univ. Park, PA 16802 (United States); Mueller, E.; Panayotov, D. [Westinghouse Electric Sweden, SE - 721 63 Vaesteraas (Sweden); Ivanov, K. N. [Penn State Univ., Nuclear Engineering Program, Univ. Park, PA 16802 (United States)

    2006-07-01T23:59:59.000Z

    Current three-dimensional transient codes for thermal reactors are mostly based on two-group diffusion-theory nodal models. In the two-group approach no explicit distinction is made between prompt fission neutrons and delayed neutrons. Consequently, effective delayed neutron fractions have traditionally been used in an attempt to compensate for this shortcoming. A fundamentally better approach would be to solve the nodal kinetics equations in a sufficient number of energy groups to explicitly capture neutron emission spectrum effects. However, this would require the availability of a multi-group nodal transient code as well as a lattice code to generate the appropriate multi-group nodal data for the simulator. One such simulator is the PARCS nodal transient code, which is widely used and recognized as representative of the current state-of-the-art. Unfortunately, a proper nodal data preparation path between PARCS and a lattice code is not available. Even though several industrial lattice codes could be considered as candidates, most of them are tailored to producing two-group nodal data and would require modifications to produce multi-group prompt and delayed neutron emission spectra. In this paper, the particular modifications required to match the TransLAT lattice code and the PARCS nodal transient code for BWR transient applications are reported. Some modifications to PARCS were also required to make two-group and multi-group applications fully consistent. Numerical results are presented both to verify the proper functioning of these modifications and to illuminate the impact of various nodal kinetics data approximations in a selected transient calculation. In particular, the significance of blending rodded and un-rodded kinetics data in partially rodded nodes is demonstrated. It is also confirmed that the use of delayed neutron importance factors in two-group calculations notably reduces the differences between two-group and multi-group kinetics calculations. (authors)

  20. Group X

    SciTech Connect (OSTI)

    Fields, Susannah

    2007-08-16T23:59:59.000Z

    This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.

  1. Static Consistency Checking for Distributed Specifications

    E-Print Network [OSTI]

    Finkelstein, Anthony

    Static Consistency Checking for Distributed Specifications Christian Nentwich, Wolfgang Emmerich, UK {c.nentwich,w.emmerich,a.finkelstein}@cs.ucl.ac.uk Abstract Software engineers building a complex

  2. Consistent nonlinear dynamics: identifying model inadequacy

    E-Print Network [OSTI]

    Patrick E. McSharry; Leonard A. Smith

    2004-03-09T23:59:59.000Z

    Empirical modelling often aims for the simplest model consistent with the data. A new technique is presented which quantifies the consistency of the model dynamics as a function of location in state space. As is well-known, traditional statistics of nonlinear models like root-mean-square (RMS) forecast error can prove misleading. Testing consistency is shown to overcome some of the deficiencies of RMS error, both within the perfect model scenario and when applied to data from several physical systems using previously published models. In particular, testing for consistent nonlinear dynamics provides insight towards (i) identifying when a delay reconstruction fails to be an embedding, (ii) allowing state dependent model selection and (iii) optimising local neighbourhood size. It also provides a more relevant (state dependent) threshold for identifying false nearest neighbours.

  3. Normality: A Consistency Condition for Concurrent Objects

    E-Print Network [OSTI]

    Garg, Vijay

    Normality: A Consistency Condition for Concurrent Objects Vijay K. GARG \\Lambda Michel RAYNAL ECE for concurrent objects (objects shared by con­ current processes) that exploits the semantics of abstract data types. It provides the illusion that each operation applied by concurrent processes takes effect

  4. A Generalization of Generalized Arc Consistency

    E-Print Network [OSTI]

    Mackworth, Alan K.

    - binary classic constraint satisfaction problems (CSPs). Based on the Semiring CSP and Valued CSP such as fuzzy CSP, probabilistic CSP, max CSP, and weighted CSP. This extension is based on an idempotent satisfaction problem (CSP), local consistency can be char- acterized as deriving new constraints based on local

  5. Correlation properties of loose groups

    SciTech Connect (OSTI)

    Maia, M.A.G.; Da Costa, L.N. (Observatorio Nacional do Brasil, Rio de Janeiro (Brazil))

    1990-02-01T23:59:59.000Z

    The two-point spatial correlation function for loose groups of galaxies is computed, using the recently compiled catalog of groups in the southern hemisphere. It is found that the correlation function for groups has a similar slope to that of galaxies but with a smaller amplitude, confirming an earlier result obtained from a similar analysis of the CfA group catalog. This implies that groups of galaxies are more randomly distributed than galaxies, which may be consistent with the predictions of Kashlinsky (1987) for a gravitational clustering scenario for the formation of large-scale structures. 21 refs.

  6. Consistence beats causality in recommender systems

    E-Print Network [OSTI]

    Zhu, Xuzhen; Hu, Zheng; Zhang, Ping; Zhou, Tao

    2015-01-01T23:59:59.000Z

    The explosive growth of information challenges people's capability in finding out items fitting to their own interests. Recommender systems provide an efficient solution by automatically push possibly relevant items to users according to their past preferences. Recommendation algorithms usually embody the causality from what having been collected to what should be recommended. In this article, we argue that in many cases, a user's interests are stable, and thus the previous and future preferences are highly consistent. The temporal order of collections then does not necessarily imply a causality relationship. We further propose a consistence-based algorithm that outperforms the state-of-the-art recommendation algorithms in disparate real data sets, including \\textit{Netflix}, \\textit{MovieLens}, \\textit{Amazon} and \\textit{Rate Your Music}.

  7. KKG Group Paraffin Removal

    SciTech Connect (OSTI)

    Schulte, Ralph

    2001-12-01T23:59:59.000Z

    The Rocky Mountain Oilfield Testing Center (RMOTC) has recently completed a test of a paraffin removal system developed by the KKG Group utilizing the technology of two Russian scientists, Gennady Katzyn and Boris Koggi. The system consisting of chemical ''sticks'' that generate heat in-situ to melt the paraffin deposits in oilfield tubing. The melted paraffin is then brought to the surface utilizing the naturally flowing energy of the well.

  8. Self-consistent Gravitational Lens Reconstruction

    E-Print Network [OSTI]

    S. Dye; A. Taylor

    1998-08-13T23:59:59.000Z

    We present a new method for directly determining accurate, self-consistent cluster lens mass and shear maps in the strong lensing regime from the magnification bias of background galaxies. The method relies upon pixellisation of the surface mass density distribution which allows us to write down a simple, solvable set of equations. We also show how pixellisation can be applied to methods of mass determination from measurements of shear and present a simplified method of application. The method is demonstrated with cluster models and applied to magnification data from the lensing cluster Abell 1689.

  9. Self-consistent resonance in a plasma

    E-Print Network [OSTI]

    Evangelos Chaliasos

    2005-10-14T23:59:59.000Z

    As an application of the solution of the equations of electromagnetic self-consistency in a plasma, found in a previous paper, the study of controlled thermo-nuclear fusion is undertaken. This study utilizes the resonance which can be developed in the plasma, as indicated by the above solution, and is based to an analysis of the underlying forced oscillation under friction. As a consequence, we find that, in this way, controlled thermonuclear fusion seems now to be feasible in principle. The treatment is rather elementary, and it may serve as a guide for more detailed calculations.

  10. Consistency relations for the conformal mechanism

    SciTech Connect (OSTI)

    Creminelli, Paolo [Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151, Trieste (Italy); Joyce, Austin; Khoury, Justin [Center for Particle Cosmology, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104 (United States); Simonovi?, Marko, E-mail: creminel@ictp.it, E-mail: joyceau@sas.upenn.edu, E-mail: jkhoury@sas.upenn.edu, E-mail: marko.simonovic@sissa.it [SISSA, via Bonomea 265, 34136, Trieste (Italy)

    2013-04-01T23:59:59.000Z

    We systematically derive the consistency relations associated to the non-linearly realized symmetries of theories with spontaneously broken conformal symmetry but with a linearly-realized de Sitter subalgebra. These identities relate (N+1)-point correlation functions with a soft external Goldstone to N-point functions. These relations have direct implications for the recently proposed conformal mechanism for generating density perturbations in the early universe. We study the observational consequences, in particular a novel one-loop contribution to the four-point function, relevant for the stochastic scale-dependent bias and CMB ?-distortion.

  11. Automata groups

    E-Print Network [OSTI]

    Muntyan, Yevgen

    2010-01-16T23:59:59.000Z

    automata over the alphabet of 2 letters and 2-state automata over the 3-letter alphabet. We continue the classification work started by the research group at Texas A&M University ([BGK+07a, BGK+07b]) and further reduce the number of pairwise nonisomorphic...

  12. The consistency test on the cosmic evolution

    E-Print Network [OSTI]

    Gong, Yan; Zhang, Shuang-Nan; Chen, Xuelei

    2015-01-01T23:59:59.000Z

    We propose a new and robust method to test the consistency of the cosmic evolution given by a cosmological model. It is realized by comparing the combined quantity r_d^CMB/D_V^SN, which is derived from the comoving sound horizon r_d from cosmic microwave background (CMB) measurements and the effective distance D_V derived from low-redshift Type-Ia supernovae (SNe Ia) data, with direct and independent r_d/D_V obtained by baryon acoustic oscillation (BAO) measurements at median redshifts. We apply this test method for the LCDM and wCDM models, and investigate the consistency of the derived value of r_d/D_V from Planck 2015 and the SN Ia data sets of Union2.1 and JLA (z<1.5), and the r_d/D_V directly given by BAO data from six-degree-field galaxy survey (6dFGS), Sloan Digital Sky Survey Data Release 7 Main Galaxy Survey (SDSS-DR7 MGS), DR11 of SDSS-III, WiggleZ and Ly-alpha forecast surveys from Baryon Oscillation Spectroscopic Data (BOSS) DR-11 over 0.1

  13. Reliability and Consistency of Surface Contamination Measurements

    SciTech Connect (OSTI)

    Rouppert, F.; Rivoallan, A.; Largeron, C.

    2002-02-26T23:59:59.000Z

    Surface contamination evaluation is a tough problem since it is difficult to isolate the radiations emitted by the surface, especially in a highly irradiating atmosphere. In that case the only possibility is to evaluate smearable (removeable) contamination since ex-situ countings are possible. Unfortunately, according to our experience at CEA, these values are not consistent and thus non relevant. In this study, we show, using in-situ Fourier Transform Infra Red spectrometry on contaminated metal samples, that fixed contamination seems to be chemisorbed and removeable contamination seems to be physisorbed. The distribution between fixed and removeable contamination appears to be variable. Chemical equilibria and reversible ion exchange mechanisms are involved and are closely linked to environmental conditions such as humidity and temperature. Measurements of smearable contamination only give an indication of the state of these equilibria between fixed and removeable contamination at the time and in the environmental conditions the measurements were made.

  14. Self-consistent bounces in two dimensions

    SciTech Connect (OSTI)

    Baacke, Juergen; Kevlishvili, Nina [Institut fuer Physik, Universitaet Dortmund, D-44221 Dortmund (Germany)

    2005-01-15T23:59:59.000Z

    We compute bounce solutions describing false vacuum decay in a {phi}{sup 4} model in two dimensions in the Hartree approximation, thus going beyond the usual one-loop corrections to the decay rate. We use zero energy mode functions of the fluctuation operator for the numerical computation of the functional determinant and the Green's function. We thus avoid the necessity of discretizing the spectrum, as it is necessary when one uses numerical techniques based on eigenfunctions. Regularization is performed in analogy of standard perturbation theory; the renormalization of the Hartree approximation is based on the two-particle point-irreducible scheme. The iteration towards the self-consistent solution is found to converge for some range of the parameters. Within this range we find the corrections to the leading one-loop approximation to be relatively small, not exceeding 1 order of magnitude in the total transition rate.

  15. Strangulation in Galaxy Groups

    E-Print Network [OSTI]

    Kawata, Daisuke

    2007-01-01T23:59:59.000Z

    We use a cosmological chemodynamical simulation to study how the group environment impacts the star formation properties of disk galaxies. The simulated group has a total mass of M~8x10^12 Msun and a total X-ray luminosity of L_X~10^41 erg s^-1. Our simulation suggests that ram pressure is not sufficient in this group to remove the cold disk gas from a V_rot~150 km s^-1 galaxy. However, the majority of the hot gas in the galaxy is stripped over a timescale of approximately 1 Gyr. Since the cooling of the hot gas component provides a source for new cold gas, the stripping of the hot component effectively cuts off the supply of cold gas. This in turn leads to a quenching of star formation. The galaxy maintains the disk component after the cold gas is consumed leading to a galaxy with S0 properties. Our self-consistent simulation suggests that this strangulation mechanism works even in low mass groups, providing an explanation for the lower star formation rates in group galaxies relative to galaxies in the field...

  16. Strangulation in Galaxy Groups

    E-Print Network [OSTI]

    Daisuke Kawata; John S. Mulchaey

    2007-11-20T23:59:59.000Z

    We use a cosmological chemodynamical simulation to study how the group environment impacts the star formation properties of disk galaxies. The simulated group has a total mass of M~8x10^12 Msun and a total X-ray luminosity of L_X~10^41 erg s^-1. Our simulation suggests that ram pressure is not sufficient in this group to remove the cold disk gas from a V_rot~150 km s^-1 galaxy. However, the majority of the hot gas in the galaxy is stripped over a timescale of approximately 1 Gyr. Since the cooling of the hot gas component provides a source for new cold gas, the stripping of the hot component effectively cuts off the supply of cold gas. This in turn leads to a quenching of star formation. The galaxy maintains the disk component after the cold gas is consumed, which may lead to a galaxy similar to an S0. Our self-consistent simulation suggests that this strangulation mechanism works even in low mass groups, providing an explanation for the lower star formation rates in group galaxies relative to galaxies in the field.

  17. alternating chemoradiotherapy consisting: Topics by E-print Network

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

    Sciences Websites Summary: Sequential Consistency for Heterogeneous-Race-Free DEREK R. HOWER, BRADFORD M. BECKMANN, BENEDICT R: Sequential Consistency for Data-Race-Free (SC for...

  18. aortic rupture consisting: Topics by E-print Network

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

    Sciences Websites Summary: Sequential Consistency for Heterogeneous-Race-Free DEREK R. HOWER, BRADFORD M. BECKMANN, BENEDICT R: Sequential Consistency for Data-Race-Free (SC for...

  19. archaeological record consistent: Topics by E-print Network

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

    Sciences Websites Summary: Sequential Consistency for Heterogeneous-Race-Free DEREK R. HOWER, BRADFORD M. BECKMANN, BENEDICT R: Sequential Consistency for Data-Race-Free (SC for...

  20. air regulations consistency: Topics by E-print Network

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

    Sciences Websites Summary: Sequential Consistency for Heterogeneous-Race-Free DEREK R. HOWER, BRADFORD M. BECKMANN, BENEDICT R: Sequential Consistency for Data-Race-Free (SC for...

  1. Microsystems and Nanotechnology Group

    E-Print Network [OSTI]

    Pulfrey, David L.

    Microsystems and Nanotechnology Group Microsystems and Nanotechnology Group 1 Microsystems and Nanotechnology Research Group The University of British Columbia Microsystems and Nanotechnology Research Group The University of British Columbia Annual Report ­ 2007 Microsystems and Nanotechnology Research Group 1 About

  2. Microsystems and Nanotechnology Group

    E-Print Network [OSTI]

    Pulfrey, David L.

    Microsystems and Nanotechnology Group Microsystems and Nanotechnology Group 1 Microsystems and Nanotechnology Research Group The University of British Columbia Microsystems and Nanotechnology Research Group The University of British Columbia Annual Report ­ 2008 Microsystems and Nanotechnology Research Group 1 About

  3. Towards consistent Electroweak Precision Data constraints in the SMEFT

    E-Print Network [OSTI]

    Laure Berthier; Michael Trott

    2015-05-06T23:59:59.000Z

    We discuss the impact of many previously neglected effects of higher dimensional operators when fitting to Electroweak Precision data (EWPD) in the Standard Model Effective Field Theory (SMEFT). We calculate the general case of $2 \\rightarrow 2$ fermion scattering in the SMEFT to order $\\mathcal{O}(\\bar{v}_T^2/\\Lambda^2)$ valid on and off the $Z$ pole, in the massless fermion limit. We demonstrate that previously neglected corrections scale as $\\Gamma_Z M_Z/\\bar{v}_T^2$ in the partial widths extracted from measured cross sections at LEPI, compared to the leading effect of dimension six operators in anomalous $Z$ couplings. Further, constraints on leading effects of anomalous $Z$ couplings are also modified by neglected perturbative corrections and dimension eight operators. We perform a minimal EWPD fit to illustrate the size of the error these corrections induce, when bounding leading effects. These considerations relax bounds compared to a naive leading order analysis, and show that constraints that rise above the percent level are subject to substantial theoretical uncertanties. We also argue that renormalization group running global constraints expressed through $\\chi^2$ functions to a common scale, and then minimizing and performing a global fit of all data allows more consistent constraints to be obtained in the SMEFT.

  4. Towards consistent Electroweak Precision Data constraints in the SMEFT

    E-Print Network [OSTI]

    Laure Berthier; Michael Trott

    2015-02-09T23:59:59.000Z

    We discuss the impact of many previously neglected effects of higher dimensional operators when fitting to Electroweak Precision data (EWPD) in the Standard Model Effective Field Theory (SMEFT). We calculate the general case of $2 \\rightarrow 2$ fermion scattering in the SMEFT to order $\\mathcal{O}(\\bar{v}_T^2/\\Lambda^2)$ valid on and off the $Z$ pole, in the massless fermion limit. We demonstrate that previously neglected corrections scale as $\\Gamma_Z M_Z/\\bar{v}_T^2$ in the partial widths extracted from measured cross sections at LEPI, compared to the leading effect of dimension six operators in anomalous $Z$ couplings. Further, constraints on leading effects of anomalous $Z$ couplings are also modified by neglected perturbative corrections and dimension eight operators. We perform a minimal EWPD fit to illustrate the size of the error these corrections induce, when bounding leading effects. These considerations relax bounds compared to a naive leading order analysis, and show that constraints that rise above the percent level are subject to substantial theoretical uncertanties. We also argue that renormalization group running global constraints expressed through $\\chi^2$ functions to a common scale, and then minimizing and performing a global fit of all data allows more consistent constraints to be obtained in the SMEFT.

  5. Decentralized Storage Consistency via Versioning Servers Garth Goodson,

    E-Print Network [OSTI]

    , consistency protocol, versioning servers, distributed systems #12; Introduction Survivable storage systems (e produce garbage. Protocols exist for achieving such consistency, they generally involve significant extra], survival client compromises [34]. Further, implemented with minimal performance cost ( [34] and capacity

  6. Generalized contexts and consistent histories in quantum mechanics

    SciTech Connect (OSTI)

    Losada, Marcelo [Instituto de Física Rosario, Pellegrini 250, 2000 Rosario (Argentina); Laura, Roberto, E-mail: rlaura@fceia.unr.edu.ar [Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Pellegrini 250, 2000 Rosario (Argentina); Instituto de Física Rosario, Pellegrini 250, 2000 Rosario (Argentina)

    2014-05-15T23:59:59.000Z

    We analyze a restriction of the theory of consistent histories by imposing that a valid description of a physical system must include quantum histories which satisfy the consistency conditions for all states. We prove that these conditions are equivalent to imposing the compatibility conditions of our formalism of generalized contexts. Moreover, we show that the theory of consistent histories with the consistency conditions for all states and the formalism of generalized context are equally useful representing expressions which involve properties at different times.

  7. ORCHIS: CONSISTENCY-DRIVEN DATA QUALITY MANAGEMENT IN SENSING SYSTEMS

    E-Print Network [OSTI]

    Shi, Weisong

    Sensing Data Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.3 Related Energy Efficiency Design . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.4 Related Data Consistency Models

  8. Software Agent Architecture for Consistency Management in Distributed Documents

    E-Print Network [OSTI]

    Finkelstein, Anthony

    Software Agent Architecture for Consistency Management in Distributed Documents Anthony Finkelstein an account of an architecture for management of consistency relations between distributed documents. We of use of this system in a domain of software engineering documents. Keywords Consistency management, XML

  9. WELL-FORMEDNESS, CONSISTENCY AND COMPLETENESS OF GRAPHIC MODELS

    E-Print Network [OSTI]

    Zhu, Hong

    WELL-FORMEDNESS, CONSISTENCY AND COMPLETENESS OF GRAPHIC MODELS HONG ZHU Department of Computing@yahoo.com ABSTRACT This paper clarifies the notions of well-formedness, consistency and completeness of graphic languages, Well-formedness, Consistency constraints, Completeness constraints, Type systems, Formal

  10. aromatic methoxy groups: Topics by E-print Network

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

    Iron Formation, Hamersley Group, and were collected in mines near Tom Price mature gas condensates. The aromatic fraction predominantly consists of unsubstituted two and...

  11. Properties of Group Five and Group Seven transactinium elements

    E-Print Network [OSTI]

    Wilk, Philip A.

    2001-01-01T23:59:59.000Z

    of Group Five and Group Seven Transactinium Elementsof Group Five and Group Seven Transactinium Elements byof Group Five and Group Seven Transactinium Elements by

  12. Self-consistent Green's functions calculation of the nucleon mean-free path

    E-Print Network [OSTI]

    A. Rios; V. Soma

    2011-12-22T23:59:59.000Z

    The extension of Green's functions techniques to the complex energy plane provides access to fully dressed quasi-particle properties from a microscopic perspective. Using self-consistent ladder self-energies, we find both spectra and lifetimes of such quasi-particles in nuclear matter. With a consistent choice of the group velocity, the nucleon mean-free path can be computed. Our results indicate that, for energies above 50 MeV at densities close to saturation, a nucleon has a mean-free path of 4 to 5 femtometers.

  13. California Department of Fish and Wildlife Consistency Determination...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Web Site: California Department of Fish and Wildlife Consistency Determination Webpage Abstract This website explains the...

  14. Consistency of robust optimization with application to portfolio ...

    E-Print Network [OSTI]

    Megiddo

    2010-09-26T23:59:59.000Z

    very general portfolio and risk constraints. Further, consistency will also carry ...... Quantitative Analysis, 42(3):621–656, 2007. [21] A. Kirsch. An Introduction to ...

  15. GROUP THERAPY Syracuse University

    E-Print Network [OSTI]

    McConnell, Terry

    your individual needs. In a group, up to eight students meet with one or two group therapists. MostGROUP THERAPY Syracuse University Counseling Center 200 Walnut Place Phone: 315-443-4715 Fax: 315-443-4276 counselingcenter.syr.edu WHAT STUDENTS SAY ABOUT GROUP THERAPY I was really anxious about joining a group

  16. Consistent inventory control Elvira Marie B. Aske,, and Sigurd Skogestad,

    E-Print Network [OSTI]

    Skogestad, Sigurd

    Consistent inventory control Elvira Marie B. Aske,, and Sigurd Skogestad, Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim, Norway Abstract Inventory or material of this paper is to propose the more general local- consistency rule for evaluating inventory control systems

  17. Consistent Query Answers in Inconsistent Databases Marcelo Arenas

    E-Print Network [OSTI]

    Bertossi, Leopoldo

    is proved as well. 1 Introduction Integrity constraints capture an important normative aspect of every of consistent answer in a relational database that may violate given integrity constraints. This notion are consistent with the integrity constraints and which are not. In this pa­ per, we provide a logical

  18. Quantitative verification of ab initio self-consistent laser theory

    E-Print Network [OSTI]

    Stone, A. Douglas

    ­1564 (1998). 6. O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O'Brien, P. D. Dapkus, and I. Kim, "TwoQuantitative verification of ab initio self-consistent laser theory Li Ge,1 Robert J. Tandy,1 A¨ureci, A. D. Stone, and B. Collier, "Self-consistent multimode lasing theory for complex or random lasing

  19. Harmonic superspace formalism and the consistent chiral anomaly

    SciTech Connect (OSTI)

    Li, W.

    1986-08-01T23:59:59.000Z

    The harmonic superspace formalism has been used to construct the consistent chiral anomaly in N = 1, d = 6 supersymmetric Yang-Mills thoery. The expressions of the gauge anomaly ..delta../sub s//sup phi/ and of the supersymmetric anomaly ..delta../sub SUSY//sup phi/ are given together with the consistent condition. 7 refs.

  20. Market-Consistent Valuation of Long-Term Insurance Contracts -

    E-Print Network [OSTI]

    Pfeifer, Holger

    Market-Consistent Valuation of Long-Term Insurance Contracts - Valuation Framework-Consistent Valuation of Long-Term Insurance Contracts Valuation Framework and Application to German Private Health with respect to prot sharing rules and premium adjustment mechanisms. In contrast to the valuation of life

  1. Dynamic Consistency in Process Algebra: From Paradigm to ACP

    E-Print Network [OSTI]

    de Vink, Erik

    Dynamic Consistency in Process Algebra: From Paradigm to ACP S. Andovaa, , L.P.J. Groenewegenb , E: branching bisimulation, collaboration, dynamic consistency, dynamic constraint, Paradigm, process algebra coupled, but structured aggregation of components, is connected to the compu- tational rigor of process

  2. Specific Group Hardware

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

    Group Hardware Specific Group Hardware ALICE palicevo1 The Virtual Organization (VO) server. Serves as gatekeeper for ALICE jobs. It's duties include getting assignments from...

  3. QEP WORKING GROUP CHARGES Assessment Working Group

    E-Print Network [OSTI]

    Liu, Paul

    and a framework that details timelines, leadership, resource allocation, and an assessment plan that is clearlyQEP WORKING GROUP CHARGES Assessment Working Group The topic of the QEP should fit should be supported by a thorough understanding of the institutional context and by assessment data

  4. Selmer groups as flat cohomology groups

    E-Print Network [OSTI]

    ?esnavi?ius, K?stutis

    2014-01-01T23:59:59.000Z

    Given a prime number p, Bloch and Kato showed how the p Selmer group of an abelian variety A over a number field K is determined by the p-adic Tate module. In general, the pm1-Selmer group Selpmn A need not be determined ...

  5. 1. Tsubono Group 1 1 Tsubono Group

    E-Print Network [OSTI]

    Ejiri, Shinji

    optical fiber ­ Test of the law of gravitation at extremely small distance references [1] Y. Aso, M. Ando1. Tsubono Group 1 1 Tsubono Group Research Subjects: Experimental Relativity, Gravitational Wave Physics, Laser Inter- ferometer Member: Kimio TSUBONO and Masaki ANDO The detection of gravitational waves

  6. Consistency Testing of the IRDF-2002 Dosimetry Cross Section Library

    SciTech Connect (OSTI)

    Griffin, P.J. [Nuclear Technologies Department, Sandia National Laboratories, Albuquerque, NM 87185-1146 (United States)

    2005-05-24T23:59:59.000Z

    The new IRDF-2002 dosimetry cross-section library was completed by the IAEA in January 2004. A rigorous process was followed in the selection of the recommended dosimetry cross sections. The cross-section selection was followed with a consistency testing. This paper reports on the results of the consistency testing. All candidate selections passed the acceptance testing criteria and the library release is pending. Observations are made on areas that need improvement in the cross sections and in the scope of the consistency testing.

  7. Consistent blind protein structure generation from NMR chemical shift data

    E-Print Network [OSTI]

    Baker, David

    Consistent blind protein structure generation from NMR chemical shift data Yang Shen*, Oliver Lange been successfully applied in a blind manner to nine protein targets with molecular masses up to 15.4 k

  8. Data Structures for Generalised Arc Consistency for Extensional Constraints

    E-Print Network [OSTI]

    St Andrews, University of

    the extensional representation remains the most effective way to model a facet of a problem it is essential and structured problems. 2 Background The finite-domain constraint satisfaction problem (CSP) consists of

  9. Using XML to Build Consistency Rules for Distributed Specifications

    E-Print Network [OSTI]

    Finkelstein, Anthony

    Using XML to Build Consistency Rules for Distributed Specifications Andrea Zisman Wolfgang Emmerich)20 76794413 a.zisman@soi.city.ac.uk {w.emmerich | a.finkelstein}@cs.ucl.ac.uk ABSTRACT The work presented

  10. Flexible Consistency Checking Christian Nentwich, Wolfgang Emmerich, Anthony Finkelstein

    E-Print Network [OSTI]

    Finkelstein, Anthony

    Flexible Consistency Checking Christian Nentwich, Wolfgang Emmerich, Anthony Finkelstein Department of Computer Science University College London Gower Street, London, WC1E 6BT UK {c.nentwich,w.emmerich

  11. Self-consistent resummation scheme in scalar QED

    SciTech Connect (OSTI)

    Carrington, M.E. (Physics Department, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B 2E9 (Canada))

    1993-10-15T23:59:59.000Z

    In this paper we derive a resummation scheme that may be useful in the calculation of finite temperature processes that involve infrared-divergent diagrams. We discuss the inclusion of self-consistent vertices in calculations of diagrams with very soft external momenta. We work with scalar QED and show that the use of self-consistent vertices in the infrared limit of the retarded photon polarization tensor is equivalent to the resummation of dominant diagrams. To lowest order in an expansion about the parameter that is to be determined self-consistently, we find that the result is independent of this parameter and equal to the expression obtained with uncorrected lines and vertices. The motivation for this work is the hope that it will be possible to use this technique to perform self-consistent calculations beyond leading order.

  12. Time consistency and risk averse dynamic decision models ...

    E-Print Network [OSTI]

    2013-05-02T23:59:59.000Z

    sistent models as we provide practitioners with an intuitive economic inter- pretation for the ... ning and financial engineering problems. Based on ... consistency is shown to be one basic requirement to get suitable optimal de- cisions, in ...

  13. The EIS process consists of several steps, each with

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

    EIS process consists of several steps, each with opportunities for you to get involved. BPA follows these six steps for EISs on projects, plans and policies. 1. Notice of Intent...

  14. Consistent description of kinetics and hydrodynamics of dusty plasma

    SciTech Connect (OSTI)

    Markiv, B. [Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii St., 79011 Lviv (Ukraine)] [Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii St., 79011 Lviv (Ukraine); Tokarchuk, M. [Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii St., 79011 Lviv (Ukraine) [Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii St., 79011 Lviv (Ukraine); National University “Lviv Polytechnic,” 12 Bandera St., 79013 Lviv (Ukraine)

    2014-02-15T23:59:59.000Z

    A consistent statistical description of kinetics and hydrodynamics of dusty plasma is proposed based on the Zubarev nonequilibrium statistical operator method. For the case of partial dynamics, the nonequilibrium statistical operator and the generalized transport equations for a consistent description of kinetics of dust particles and hydrodynamics of electrons, ions, and neutral atoms are obtained. In the approximation of weakly nonequilibrium process, a spectrum of collective excitations of dusty plasma is investigated in the hydrodynamic limit.

  15. Multiple choice of gauge generators and consistency of interactions

    E-Print Network [OSTI]

    S. L. Lyakhovich; A. A. Sharapov

    2014-08-07T23:59:59.000Z

    It is usually assumed that any consistent interaction either deforms or retains the gauge symmetries of the corresponding free theory. We propose a simple model where an obvious irreducible gauge symmetry does not survive an interaction, while the interaction is consistent as it preserves the number of physical degrees of freedom. The model turns out admitting a less obvious reducible set of gauge generators which is compatible with the interaction and smooth in coupling constant. Possible application to gravity models is discussed.

  16. Attutude-action consistency and social policy related to nuclear technology

    SciTech Connect (OSTI)

    Lindell, M.K.; Perry, R.W.; Greene, M.

    1980-06-01T23:59:59.000Z

    This study reports the results of a further analysis of questionnaire data--parts of which have been previously reported by Lindell, Earle, Hebert and Perry (1978)--that are related to the issue of consistency of attitudes and behavior toward nuclear power and nuclear waste management. Three factors are considered that might be expected to have a significant bearing on attitude-action consistency: social support, attitude object importance and past activism. Analysis of the data indicated that pronuclear respondents were more likely to show consistency of attitudes and actions (66%) than were antinuclear respondents (51%) although the difference in proportions is not statistically significant. Further analyses showed a strong positive relation between attitude-action consistency and perceived social support, measured by the degree to which the respondent believed that close friends and work associated agreed with his attitude. This relationship held up even when controls for attitude object importance and past activism were introduced. Attitude object importance--the salience of the issue of energy shortage--had a statistically significant effect only when perceived social support was low. Past activism had no significant relation to attitude-action consistency. These data suggest that the level of active support for or opposition to nuclear technology will be affected by the distribution of favorable and unfavorable attitudes among residents of an area. Situations in which pro- and antinuclear attitudes are concentrated among members of interacting groups, rather than distributed randomly, are more likely to produce high levels of polarization.

  17. TEC Working Group Topic Groups Archives Communications Meeting...

    Office of Environmental Management (EM)

    TEC Working Group Topic Groups Archives Communications Conference Call Summaries TEC Meeting Summaries - January 1997 TEC Working Group Topic Groups Tribal Conference Call...

  18. "Constraint consistency" at all orders in Cosmological perturbation theory

    E-Print Network [OSTI]

    Nandi, Debottam

    2015-01-01T23:59:59.000Z

    We study the equivalence of two - order-by-order Einstein's equation and Reduced action - approaches to cosmological perturbation theory at all orders for different models of inflation. We point out a crucial consistency check which we refer to as "Constraint consistency" that needs to be satisfied. We propose a quick and efficient method to check the consistency for any model including modified gravity models. Our analysis points out an important feature which is crucial for inflationary model building i.e., all `constraint' inconsistent models have higher order Ostrogradsky's instabilities but the reverse is not true. In other words, one can have models with constraint lapse function and shift vector, though it may have Ostrogradsky's instabilities. We also obtain the single variable equation for non-canonical scalar field in the limit of power-law inflation for the second-order perturbed variables.

  19. "Constraint consistency" at all orders in Cosmological perturbation theory

    E-Print Network [OSTI]

    Debottam Nandi; S. Shankaranarayanan

    2015-02-12T23:59:59.000Z

    We study the equivalence of two - order-by-order Einstein's equation and Reduced action - approaches to cosmological perturbation theory at all orders for different models of inflation. We point out a crucial consistency check which we refer to as "Constraint consistency" that needs to be satisfied. We propose a quick and efficient method to check the consistency for any model including modified gravity models. Our analysis points out an important feature which is crucial for inflationary model building i.e., all `constraint' inconsistent models have higher order Ostrogradsky's instabilities but the reverse is not true. In other words, one can have models with constraint lapse function and shift vector, though it may have Ostrogradsky's instabilities. We also obtain the single variable equation for non-canonical scalar field in the limit of power-law inflation for the second-order perturbed variables.

  20. Long Term by Group

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

    Running Jobs by Group Running Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 13:59:48...

  1. Mechanical Engineering & Thermal Group

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Mechanical Engineering & Thermal Group The Mechanical Engineering (ME) & Thermal Group at LASP has · STOP (Structural, Thermal, and Optical Performance) analyses of optical systems Thermal engineers lead evolved with the complexity of instrument design demands, LASP mechanical engineers develop advanced

  2. Charge Lattices and Consistency of 6D Supergravity

    E-Print Network [OSTI]

    Nathan Seiberg; Washington Taylor

    2011-06-05T23:59:59.000Z

    We extend the known consistency conditions on the low-energy theory of six-dimensional N = 1 supergravity. We review some facts about the theory of two-form gauge fields and conclude that the charge lattice Gamma for such a theory has to be self-dual. The Green-Schwarz anomaly cancellation conditions in the supergravity theory determine a sublattice of Gamma. The condition that this sublattice can be extended to a self-dual lattice Gamma leads to a strong constraint on theories that otherwise appear to be self-consistent.

  3. Self-consistent quasiparticle model for quark-gluon plasma

    E-Print Network [OSTI]

    Vishnu M. Bannur

    2006-09-19T23:59:59.000Z

    Here we present a self-consistent quasi-particle model for quark-gluon plasma and apply it to explain the non-ideal behaviour seen in lattice simulations. The basic idea, borrowed from electrodynamic plasma, is that the gluons acquire mass as it propagates through plasma due to collective effects and is approximately equal to the plasma frequency. The statistical mechanics and thermodynamics of such a system is studied by treating it as an ideal gas of massive gluons. Since mass or plasma frequency depends on density, which itself is a thermodynamic quantity, the whole problem need to be solved self-consistently.

  4. Consistency test of neutrinoless double beta decay with one isotope

    E-Print Network [OSTI]

    Michael Duerr; Manfred Lindner; Kai Zuber

    2011-11-17T23:59:59.000Z

    We discuss a consistency test which makes it possible to discriminate unknown nuclear background lines from neutrinoless double beta decay with only one isotope. By considering both the transition to the ground state and to the first excited $0^+$ state, a sufficiently large detector can reveal if neutrinoless double beta decay or some other nuclear physics process is at work. Such a detector could therefore simultaneously provide a consistency test for a certain range of Majorana masses and be sensitive to lower values of the effective Majorana mass.

  5. Consistency test of neutrinoless double beta decay with one isotope

    SciTech Connect (OSTI)

    Duerr, Michael; Lindner, Manfred [Max-Planck-Institut fuer Kernphysik, Postfach 10 39 80, 69029 Heidelberg (Germany); Zuber, Kai [Technical University Dresden, Institut fuer Kern- und Teilchenphysik, 01069 Dresden (Germany)

    2011-11-01T23:59:59.000Z

    We discuss a consistency test which makes it possible to discriminate unknown nuclear background lines from neutrinoless double beta decay with only one isotope. By considering both the transition to the ground state and to the first excited 0{sup +} state, a sufficiently large detector can reveal if neutrinoless double beta decay or some other nuclear physics process is at work. Such a detector could therefore simultaneously provide a consistency test for a certain range of Majorana masses and be sensitive to lower values of the effective Majorana mass .

  6. AN H I SURVEY OF SIX LOCAL GROUP ANALOGS. II. H I PROPERTIES OF GROUP GALAXIES

    SciTech Connect (OSTI)

    Pisano, D. J. [Department of Physics, West Virginia University, P.O. Box 6315, Morgantown, WV 26506 (United States); Barnes, David G.; Kilborn, Virginia A. [Centre for Astrophysics and Supercomputing, Swinburne University, Hawthorn, Victoria 3122 (Australia); Staveley-Smith, Lister [International Centre for Radio Astronomy Research, M468, University of Western Australia, Crawley, WA 6009 (Australia); Gibson, Brad K. [Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE (United Kingdom); Freeman, Ken C., E-mail: djpisano@mail.wvu.edu, E-mail: David.G.Barnes@gmail.com, E-mail: vkilborn@astro.swin.edu.au, E-mail: Lister.Staveley-Smith@icrar.org, E-mail: brad.k.gibson@gmail.com, E-mail: kcf@mso.anu.edu.au [RSAA, Mount Stromlo Observatory, Cotter Road, Weston, ACT 2611 (Australia)

    2011-12-01T23:59:59.000Z

    We have conducted an H I 21 cm emission-line survey of six loose groups of galaxies chosen to be analogs to the Local Group. The survey was conducted using the Parkes multibeam instrument and the Australia Telescope Compact Array (ATCA) over a {approx}1 Mpc{sup 2} area and covering the full depth of each group, with an M{sub HI} sensitivity of {approx}7 Multiplication-Sign 10{sup 5} M{sub Sun }. Our survey detected 110 sources, 61 of which are associated with the six groups. All of these sources were confirmed with ATCA observations or were previously cataloged by HIPASS. The sources all have optical counterparts and properties consistent with dwarf irregular or late-type spiral galaxies. We present here the H I properties of the groups and their galaxies. We derive an H I mass function (HIMF) for the groups that is consistent with being flatter than the equivalent field HIMF. We also derive a circular velocity distribution function, tracing the luminous dark matter halos in the groups, that is consistent with those of the Local Group and HIPASS galaxies, both of which are shallower than that of clusters or predictions from cold dark matter models of galaxy formation.

  7. Interagency Sustainability Working Group

    Broader source: Energy.gov [DOE]

    The Interagency Sustainability Working Group (ISWG) is the coordinating body for sustainable buildings in the federal government.

  8. Hydrogen Analysis Group

    SciTech Connect (OSTI)

    Not Available

    2008-03-01T23:59:59.000Z

    NREL factsheet that describes the general activites of the Hydrogen Analysis Group within NREL's Hydrogen Technologies and Systems Center.

  9. Representations of the groups of order 64

    E-Print Network [OSTI]

    Hansen, Roger Finn

    1967-01-01T23:59:59.000Z

    -seven groups of order 64 are divided into twenty-seven families, . The families are denoted by 0, i = 1 2, . . . , 27. 1 Definition 2. 9. Two groups belong to the same ~famil if they are isoclinic. Definition 2. 10. The groups of lowest order in a family.... Then Z (G) = C 0( C and G/Z (G) = 16 I'2 al. As in the previous example G/2 (G) consists of the following cosets: g ' = (1, 2, 3, 4) g ' = (5678) 16' = (61, 62, 63, 64) 15 The following table was calculated using a representative ele- ment from...

  10. A nuclear Frechet space consisting of C -functions and

    E-Print Network [OSTI]

    Vogt, Dietmar

    A nuclear Fr´echet space consisting of C -functions and failing the bounded approximation property Dietmar Vogt Abstract An easy and transparent example is given of a nuclear Fre´echet space failing of Grothendieck whether every nuclear Fr´echet space has the bounded approximation property was open for quite

  11. Self-consistent quasi-particle model for relativistic plasma

    E-Print Network [OSTI]

    Vishnu M. Bannur

    2006-02-24T23:59:59.000Z

    Relativistic plasma with radiation at thermodynamic equilibrium is ageneral system of interest in astrophysics and high energy physics. We develop a new self-consistent quasi-particle model for such a system to take account of collective behaviour of plasma andthermodynamic properties are derived. It is applied to electrodynamic plasma and quark gluon plasma and compared with existing results.

  12. Dynamic Path Consistency for Spatial Reasoning Lamia Belouaer, Maroua Bouzid

    E-Print Network [OSTI]

    Boyer, Edmond

    Ontology of a given environment. In order to evaluate the performance of our dynamic path consistency method, we reactive planning and path finding. Let us consider the example of an accident at a nuclear plant. Generally if something goes wrong there are always planned paths from any position in the nuclear plant

  13. Error detection through consistency checking Peng Gong* Lan Mu#

    E-Print Network [OSTI]

    Silver, Whendee

    Error detection through consistency checking Peng Gong* Lan Mu# *Center for Assessment & Monitoring Hall, University of California, Berkeley, Berkeley, CA 94720-3110 gong@nature.berkeley.edu mulan, accessibility, and timeliness as recorded in the lineage data (Chen and Gong, 1998). Spatial error refers

  14. On thermodynamically consistent schemes for phase field equations

    E-Print Network [OSTI]

    Fife, Paul

    and at the phase change front. A somewhat different approach of Charach and Zemel [2] combines bal- ance equationsOn thermodynamically consistent schemes for phase field equations C. Charach and P. C. Fife thermodynamics. The principal applications are to the solidification of a pure material and of a binary alloy

  15. Effective Collaboration and Consistency Management in Business Process Modeling

    E-Print Network [OSTI]

    Czarnecki, Krzysztof

    Effective Collaboration and Consistency Management in Business Process Modeling Co-Chairs: Moises they are lost. Business Process Modeling (BPM) is a promising approach to enable agility in business process of experts. Business analysts gather requirements and create high-level process models. Solution architects

  16. AVMON: Optimal and Scalable Discovery of Consistent Availability Monitoring

    E-Print Network [OSTI]

    Gupta, Indranil

    AVMON: Optimal and Scalable Discovery of Consistent Availability Monitoring Overlays--This paper proposes to build overlays that help in the monitoring of long-term availability histories of such an availability monitoring overlay. We motivate six significant goals for these problems--the first three goals

  17. Self-consistent methods in nuclear structure physics

    SciTech Connect (OSTI)

    Dobaczewski, J. [Warsaw Univ. (Poland). Inst. of Theoretical Physics][Oak Ridge National Lab., TN (United States). Joint Inst. for Heavy Ion Research]|[Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics

    1997-11-01T23:59:59.000Z

    The authors present a very brief description of the Hartree Fock method in nuclear structure physics, discuss the numerical methods used to solve the self-consistent equations, and analyze the precision and convergence properties of solutions. As an application, they present results pertaining to quadrupole moments and single-particle quadrupole polarizations in superdeformed nuclei with A {approximately} 60.

  18. Consistent Validation of Manual and Automatic Sense Annotations with

    E-Print Network [OSTI]

    Navigli, Roberto

    interannotator agreement and voting can be applied to deal with the divergences between sense taggers. The tool employs semantic interconnection patterns to smooth possible divergences and support consistent an agreement. The problem depends on a variety of factors, ranging from the inherent subjectivity of the task

  19. Summary of residential environmental issues and program consistency

    SciTech Connect (OSTI)

    Baechler, M C

    1989-05-01T23:59:59.000Z

    The Northwest Power Planning Act authorizes the Bonneville Power Administration to acquire all necessary energy resources to serve Northwest utilities choosing to acquire power from the agency and to give conservation the highest priority in responding to the demand for electricity. To meet this mandate, the agency has established residential conservation programs for weatherizing existing homes, building new energy-efficient homes, and promoting energy-efficient appliances. Pacific Northwest Laboratory prepared this report to compare and contrast the environmental requirements and issues involving Bonneville's residential conservation programs. The key environmental concern confronting each of the programs with measures aimed at reducing air leakage rates in houses (both new and existing) is indoor air quality (IAQ). This report reviews the similarity and consistency of the programs' approach to IAQ, their impacts, program features, mitigation techniques, and new information about IAQ and other potential environmental issues confronting the programs. The information is intended for use in comparing and contrasting how environmental features mesh with other program features, checking consistency across programs and determining whether it makes sense for programs to be consistent, determining consistency between programs, and providing information to aid program planning in light of potential environmental issues and new information. 31 refs.

  20. Grouped exposed metal heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)

    2010-11-09T23:59:59.000Z

    A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

  1. Grouped exposed metal heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, ML); Watkins, Ronnie Wade (Cypress, TX)

    2012-07-31T23:59:59.000Z

    A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

  2. Consistent Data Assimilation of Isotopes: 242Pu and 105Pd

    SciTech Connect (OSTI)

    G. Palmiotti; H. Hiruta; M. Salvatores

    2012-09-01T23:59:59.000Z

    In this annual report we illustrate the methodology of the consistent data assimilation that allows to use the information coming from integral experiments for improving the basic nuclear parameters used in cross section evaluation. A series of integral experiments are analyzed using the EMPIRE evaluated files for 242Pu and 105Pd. In particular irradiation experiments (PROFIL-1 and -2, TRAPU-1, -2 and -3) provide information about capture cross sections, and a critical configuration, COSMO, where fission spectral indexes were measured, provides information about fission cross section. The observed discrepancies between calculated and experimental results are used in conjunction with the computed sensitivity coefficients and covariance matrix for nuclear parameters in a consistent data assimilation. The results obtained by the consistent data assimilation indicate that not so large modifications on some key identified nuclear parameters allow to obtain reasonable C/E. However, for some parameters such variations are outside the range of 1 s of their initial standard deviation. This can indicate a possible conflict between differential measurements (used to calculate the initial standard deviations) and the integral measurements used in the statistical data adjustment. Moreover, an inconsistency between the C/E of two sets of irradiation experiments (PROFIL and TRAPU) is observed for 242Pu. This is the end of this project funded by the Nuclear Physics Program of the DOE Office of Science. We can indicate that a proof of principle has been demonstrated for a few isotopes for this innovative methodology. However, we are still far from having explored all the possibilities and made this methodology to be considered proved and robust. In particular many issues are worth further investigation: • Non-linear effects • Flexibility of nuclear parameters in describing cross sections • Multi-isotope consistent assimilation • Consistency between differential and integral experiments

  3. PASSION FOR WOOD THE DLH GROUP 2006

    E-Print Network [OSTI]

    countries on 5 continents · 19 timber merchant companies in Denmark, 10 of which have do-it-yourself stores Division consists of 19 timber merchant companies in Denmark, just over half of which have an adjacent doPASSION FOR WOOD THE DLH GROUP 2006 #12;54% 21% 25% ONE OF THE WORLD'S MAJOR TIMBER WHOLESALERS

  4. GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 ANDERSON, JENNIFER AYENI, MARY ABATE BESSOMO, ANNA BARRETT, CIAN ADAMS, NICOLE BARTON, MICHAEL

    E-Print Network [OSTI]

    O'Mahony, Donal E.

    GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 ANDERSON, JENNIFER AYENI, MARY ABATE BESSOMO, ANNA ANDERSON FITZSIMONS, DENISEBINCHY, SUSAN CARLEY, JESSE CONWAY, AILBHE BROOKE, HENRY CONLAN, DEIRDRE, CAOIMHE HESKIN, CLODAGH MC GOVERN, MARIE-CLAIREMURRAY, AINE GROGAN, CLARE GERARD, ALLISON MC QUAID, RACHEL

  5. Fermilab Steering Group Report

    SciTech Connect (OSTI)

    Beier, Eugene; /Pennsylvania U.; Butler, Joel; /Fermilab; Dawson, Sally; /Brookhaven; Edwards, Helen; /Fermilab; Himel, Thomas; /SLAC; Holmes, Stephen; /Fermilab; Kim, Young-Kee; /Fermilab /Chicago U.; Lankford, Andrew; /UC, Irvine; McGinnis, David; /Fermilab; Nagaitsev, Sergei; /Fermilab; Raubenheimer, Tor; /SLAC /Fermilab

    2007-01-01T23:59:59.000Z

    The Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOVA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the industrialization of ILC components in the U.S. and creating an engineering opportunity for ILC cost reductions. It offers an early and tangible application for ILC R&D in superconducting technology, attracting participation from accelerator scientists worldwide and driving forward the technology for still higher-energy accelerators of the future, such as a muon collider. To prepare for a future decision, the Fermilab Steering Group recommends that the laboratory seek R&D support for Project X, in order to produce an overall design of Project X and to spur the R&D and industrialization of ILC linac components needed for Project X. Advice from the High Energy Physics Advisory Panel will guide any future decision to upgrade the Fermilab accelerator complex, taking into account developments affecting the ILC schedule and the continuing evaluation of scientific priorities for U.S. particle physics. Fermilab should also work toward increased resources for longer-term future accelerators such as a muon collider, aiming at higher energies than the ILC would provide.

  6. Formalization of the data flow diagram rules for consistency check

    E-Print Network [OSTI]

    Ibrahim, Rosziati; 10.5121/ijsea.2010.1406

    2010-01-01T23:59:59.000Z

    In system development life cycle (SDLC), a system model can be developed using Data Flow Diagram (DFD). DFD is graphical diagrams for specifying, constructing and visualizing the model of a system. DFD is used in defining the requirements in a graphical view. In this paper, we focus on DFD and its rules for drawing and defining the diagrams. We then formalize these rules and develop the tool based on the formalized rules. The formalized rules for consistency check between the diagrams are used in developing the tool. This is to ensure the syntax for drawing the diagrams is correct and strictly followed. The tool automates the process of manual consistency check between data flow diagrams.

  7. Branch dependence in the "consistent histories" approach to quantum mechanics

    E-Print Network [OSTI]

    Thomas Müller

    2006-11-12T23:59:59.000Z

    In the consistent histories formalism one specifies a family of histories as an exhaustive set of pairwise exclusive descriptions of the dynamics of a quantum system. We define branching families of histories, which strike a middle ground between the two available mathematically precise definitions of families of histories, viz., product families and Isham's history projector operator formalism. The former are too narrow for applications, and the latter's generality comes at a certain cost, barring an intuitive reading of the ``histories''. Branching families retain the intuitiveness of product families, they allow for the interpretation of a history's weight as a probability, and they allow one to distinguish two kinds of coarse-graining, leading to reconsidering the motivation for the consistency condition.

  8. Noncommuting Electric Fields and Algebraic Consistency in Noncommutative Gauge theories

    E-Print Network [OSTI]

    Rabin Banerjee

    2003-03-20T23:59:59.000Z

    We show that noncommuting electric fields occur naturally in $\\theta$-expanded noncommutative gauge theories. Using this noncommutativity, which is field dependent, and a hamiltonian generalisation of the Seiberg-Witten Map, the algebraic consistency in the lagrangian and hamiltonian formulations of these theories, is established. A comparison of results in different descriptions shows that this generalised map acts as canonical transformation in the physical subspace only. Finally, we apply the hamiltonian formulation to derive the gauge symmetries of the action.

  9. Advanced Algorithms 2012. Exam Questions This take-home exam consists of a number of summarizing test questions.

    E-Print Network [OSTI]

    Damaschke, Peter

    Advanced Algorithms 2012. Exam Questions This take-home exam consists of a number of summarizing to avoid failure. Help: You must do the exam completely on your own. Neither group work nor help from = X Y , and every Si in the given set family has exactly two elements: one from X and one from Y

  10. SPPR Group Proposal

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

    members will execute in August 2011. Facilities Use Charge agreements are drafted: In review stage by customer group; Proposal specifies annual update of charge amount...

  11. Hydrogen Technologies Group

    SciTech Connect (OSTI)

    Not Available

    2008-03-01T23:59:59.000Z

    The Hydrogen Technologies Group at the National Renewable Energy Laboratory advances the Hydrogen Technologies and Systems Center's mission by researching a variety of hydrogen technologies.

  12. Consistency of Taxonomic Treatments: A Response to Remsen (2005)

    E-Print Network [OSTI]

    Peterson, A. Townsend; Navarro-Sigü enza, Adolfo G.

    2006-07-01T23:59:59.000Z

    recent treatment of Mexican bird taxonomy (Navarro- Sigüenza and Peterson 2004) as relying on a “trust us, we’ve looked at the specimens” approach. He claims that our approach lacks rigor and recalls the heyday of the antiquated “Peters Checklist... from our research group Commentary The Auk 123(3):885–887, 2006 © The American Ornithologists’ Union, 2006. Printed in USA. Commentary886 [Auk, Vol. 123 (Peterson and Navarro-Sigüenza 2000, García- Moreno et al. 2004) and from others (Johnson 2004...

  13. Infrared self-consistent solutions of bispinor QED3

    E-Print Network [OSTI]

    Tomasz Radozycki

    2013-01-25T23:59:59.000Z

    Quantum electrodynamics in three dimensions in the bispinor formulation is considered. It is shown that the Dyson-Schwinger equations for fermion and boson propagators may be self-consistently solved in the infrared domain if on uses the Salam's vertex function. The parameters defining the behavior of the propagators are found numerically for different values of coupling constant and gauge parameter. For weak coupling the approximated analytical solutions are obtained. The renormalized gauge boson propagator (transverse part) is shown in the infrared domain to be practically gauge independent.

  14. Discrete KP equation with self-consistent sources

    E-Print Network [OSTI]

    Adam Doliwa; Runliang Lin

    2014-04-05T23:59:59.000Z

    We show that the discrete Kadomtsev-Petviashvili (KP) equation with sources obtained recently by the "source generalization" method can be incorporated into the squared eigenfunction symmetry extension procedure. Moreover, using the known correspondence between Darboux-type transformations and additional independent variables, we demonstrate that the equation with sources can be derived from Hirota's discrete KP equations but in a space of higher dimension. In this way we uncover the origin of the source terms as coming from multidimensional consistency of the Hirota system itself.

  15. Multi-writer consistency conditions for shared memory objects

    E-Print Network [OSTI]

    Shao, Cheng

    2008-10-10T23:59:59.000Z

    system composed of n application processes, p0;:::;pn¡1, and some number of shared objects. In this thesis, we focus on read/write registers. Such a register, x, supports two operations, read and write, which can be executed by the processes. Each... and responses, we denote by ji the subsequence of containing all the invocations and responses performed by process pi. Deflnition 2 A sequence of invocations and responses is a schedule if, for each i, 0 • i < n, the following hold: † ji consists...

  16. Multi-writer consistency conditions for shared memory objects

    E-Print Network [OSTI]

    Shao, Cheng

    2009-05-15T23:59:59.000Z

    system composed of n application processes, p0;:::;pn?1, and some number of shared objects. In this thesis, we focus on read/write registers. Such a register, x, supports two operations, read and write, which can be executed by the processes. Each... and responses, we denote by ji the subsequence of containing all the invocations and responses performed by process pi. Deflnition 2 A sequence of invocations and responses is a schedule if, for each i, 0 ? i < n, the following hold: ? ji consists...

  17. Self-consistent input-output formulation of quantum feedback

    SciTech Connect (OSTI)

    Yanagisawa, M. [Department of Engineering, The Australian National University, Canberra, ACT 0200 (Australia); Hope, J. J. [Department of Quantum Science, The Australian National University, Canberra, ACT 0200 (Australia)

    2010-12-15T23:59:59.000Z

    A simple method of analyzing quantum feedback circuits is presented. The classical analysis of feedback circuits can be generalized to apply to quantum systems by mapping the field operators of various outputs to other inputs via the standard input-output formalism. Unfortunately, this has led to unphysical results such as the violation of the Heisenberg uncertainty principle for in-loop fields. This paper shows that this general approach can be redeemed by ensuring a self-consistently Hermitian Hamiltonian. The calculations are based on a noncommutative calculus of operator derivatives. A full description of several examples of quantum linear and nonlinear feedback for optical systems is presented.

  18. Consistent perturbative light front formulation of Yang-Mills theories

    SciTech Connect (OSTI)

    Morara, M.; Soldati, R. [Dipartimento di Fisica 'A. Righi', Universita di Bologna (Italy); McCartor, G. [Department of Physics, SMU, Dallas, Texas (United States)

    1999-11-22T23:59:59.000Z

    It is shown how to obtain the consistent light front form quantization of a non-Abelian pure Yang-Mills theory (gluondynamics) in the framework of the standard perturbative approach. After a short review of the previous attempts in the light cone gauge A{sub -}=0, it is explained how the difficulties can be overcome after turning to the anti light cone gauge A{sub +}=0. In particular, the generating functional of the renormalized Green's functions turns out to be the same as in the conventional instant form approach, leading to the Mandelstam-Leibbrandt prescription for the free gluon propagator.

  19. Quark mean-field theory and consistency with nuclear matter

    SciTech Connect (OSTI)

    Dey, J.; Tomio, L. (Instituto de Fisica Teorica, Universidade Estadual Paulista, Rua Pamplona 145, 01405 Sao Paulo (Brazil)); Dey, M. (Department of Physics, Maulana Azad College, Calcutta 700 013 (India)); Frederico, T. (Institute for Nuclear Theory, Department of Physics, FM-15, University of Washington, Seattle, Washington (USA))

    1991-11-01T23:59:59.000Z

    1/{ital N}{sub {ital c}} expansion in QCD (with {ital N}{sub {ital c}} the number of colors) suggests using a potential from meson sector (e.g., Richardson) for baryons. For light quarks a {sigma} field has to be introduced to ensure chiral symmetry breaking ({chi}SB). It is found that nuclear matter properties can be used to pin down the {chi}SB modeling. All masses, {ital M}{sub {ital N}}, {ital m}{sub {sigma}}, {ital m}{sub {omega}}, are found to scale with density. The equations are solved self-consistently.

  20. Phosphors containing boron and metals of Group IIIA and IIIB

    DOE Patents [OSTI]

    Setlur, Anant Achyut; Srivastava, Alok Mani; Comanzo, Holly Ann; Manivannan, Venkatesan

    2006-10-31T23:59:59.000Z

    A phosphor comprises: (a) at least a first metal selected from the group consisting of yttrium and elements of lanthanide series other than europium; (b) at least a second metal selected from the group consisting of aluminum, gallium, indium, and scandium; (c) boron; and (d) europium. The phosphor is used in light source that comprises a UV radiation source to convert UV radiation to visible light.

  1. Self-consistent Green's functions with three-body forces

    E-Print Network [OSTI]

    Arianna Carbone

    2014-07-24T23:59:59.000Z

    The present thesis aims at studying the properties of symmetric nuclear and pure neutron matter from a Green's functions point of view, including two-body and three-body chiral forces. An extended self-consistent Green's function formalism is defined to consistently incorporate three-body forces in the many-body calculations. The effect of three-nucleon interactions is included via the construction of a dressed two-body density dependent force. This is obtained performing an average of the leading order three-body terms in the chiral effective field theory expansion. The dressed force corresponds to the use of an in-medium propagator in the average which takes into account the correlations characterizing the system at each stage of the many-body calculation. The total energy of the system is obtained by means of a modified Galitskii-Migdal-Koltun sumrule to correctly account for the effect of three-body forces. Microscopic as well as macroscopic properties of symmetric nuclear and pure neutron matter are analyzed in detailed.

  2. Self-consistent chemical model of partially ionized plasmas

    SciTech Connect (OSTI)

    Arkhipov, Yu. V.; Baimbetov, F. B.; Davletov, A. E. [Department of Physics, Kazakh National University, Tole Bi 96, Almaty 050012 (Kazakhstan)

    2011-01-15T23:59:59.000Z

    A simple renormalization theory of plasma particle interactions is proposed. It primarily stems from generic properties of equilibrium distribution functions and allows one to obtain the so-called generalized Poisson-Boltzmann equation for an effective interaction potential of two chosen particles in the presence of a third one. The same equation is then strictly derived from the Bogolyubov-Born-Green-Kirkwood-Yvon (BBGKY) hierarchy for equilibrium distribution functions in the pair correlation approximation. This enables one to construct a self-consistent chemical model of partially ionized plasmas, correctly accounting for the close interrelation of charged and neutral components thereof. Minimization of the system free energy provides ionization equilibrium and, thus, permits one to study the plasma composition in a wide range of its parameters. Unlike standard chemical models, the proposed one allows one to study the system correlation functions and thereby to obtain an equation of state which agrees well with exact results of quantum-mechanical activity expansions. It is shown that the plasma and neutral components are strongly interrelated, which results in the short-range order formation in the corresponding subsystem. The mathematical form of the results obtained enables one to both firmly establish this fact and to determine a characteristic length of the structure formation. Since the cornerstone of the proposed self-consistent chemical model of partially ionized plasmas is an effective pairwise interaction potential, it immediately provides quite an efficient calculation scheme not only for thermodynamical functions but for transport coefficients as well.

  3. Parton distributions based on a maximally consistent dataset

    E-Print Network [OSTI]

    Juan Rojo

    2014-09-10T23:59:59.000Z

    The choice of data that enters a global QCD analysis can have a substantial impact on the resulting parton distributions and their predictions for collider observables. One of the main reasons for this has to do with the possible presence of inconsistencies, either internal within an experiment or external between different experiments. In order to assess the robustness of the global fit, different definitions of a conservative PDF set, that is, a PDF set based on a maximally consistent dataset, have been introduced. However, these approaches are typically affected by theory biases in the selection of the dataset. In this contribution, after a brief overview of recent NNPDF developments, we propose a new, fully objective, definition of a conservative PDF set, based on the Bayesian reweighting approach. Using the new NNPDF3.0 framework, we produce various conservative sets, which turn out to be mutually in agreement within the respective PDF uncertainties, as well as with the global fit. We explore some of their implications for LHC phenomenology, finding also good consistency with the global fit result. These results provide a non-trivial validation test of the new NNPDF3.0 fitting methodology, and indicate that possible inconsistencies in the fitted dataset do not affect substantially the global fit PDFs.

  4. Fermilab | Employee Advisory Group | Focus Group Report

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13, 2013Focus Group Report A random sampling of

  5. Working group report: Neutrino physics

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    Working group report: Neutrino physics Acknowledgements TheWorking group report: Neutrino physics Coordinators: SANDHYAthe report of the neutrino physics working group at WHEPP-X.

  6. Power Systems Group Home Page

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

    General Information ASD Groups ESHQA Operations Argonne Home > Advanced Photon Source > Power Systems Group This page is currently under construction. Old PS Group Site (visible...

  7. ER=EPR, GHZ, and the Consistency of Quantum Measurements

    E-Print Network [OSTI]

    Leonard Susskind

    2014-12-29T23:59:59.000Z

    This paper illustrates various aspects of the ER=EPR conjecture.It begins with a brief heuristic argument, using the Ryu-Takayanagi correspondence, for why entanglement between black holes implies the existence of Einstein-Rosen bridges. The main part of the paper addresses a fundamental question: Is ER=EPR consistent with the standard postulates of quantum mechanics? Naively it seems to lead to an inconsistency between observations made on entangled systems by different observers. The resolution of the paradox lies in the properties of multiple black holes, entangled in the Greenberger-Horne-Zeilinger pattern. The last part of the paper is about entanglement as a resource for quantum communication. ER=EPR provides a way to visualize protocols like quantum teleportation. In some sense teleportation takes place through the wormhole, but as usual, classical communication is necessary to complete the protocol.

  8. Consistent generation of magnetic fields in axion inflation models

    E-Print Network [OSTI]

    Fujita, Tomohiro; Tada, Yuichiro; Takeda, Naoyuki; Tashiro, Hiroyuki

    2015-01-01T23:59:59.000Z

    There has been a growing evidence for the existence of magnetic fields in the extra-galactic regions, while the attempt to associate their origin with the inflationary epoch alone has been found extremely challenging. We therefore take into account the consistent post-inflationary evolution of the magnetic fields that are originated from vacuum fluctuations during inflation. In the model of our interest, the electromagnetic (EM) field is coupled to a pseudo-scalar inflaton $\\phi$ through the characteristic term $\\phi F\\tilde F$, breaking the conformal invariance. This interaction dynamically breaks the parity and enables a continuous production of only one of the polarization states of the EM field through tachyonic instability. The produced magnetic fields are thus helical. We find that the dominant contribution to the observed magnetic fields in this model comes from the modes that leave the horizon near the end of inflation, further enhanced by the tachyonic instability right after the end of inflation. Th...

  9. First principles molecular dynamics without self-consistent field optimization

    E-Print Network [OSTI]

    Souvatzis, Petros

    2013-01-01T23:59:59.000Z

    We present a first principles molecular dynamics approach that is based on time-reversible ex- tended Lagrangian Born-Oppenheimer molecular dynamics [Phys. Rev. Lett. 100, 123004 (2008)] in the limit of vanishing self-consistent field optimization. The optimization-free dynamics keeps the computational cost to a minimum and typically provides molecular trajectories that closely follow the exact Born-Oppenheimer potential energy surface. Only one single diagonalization and Hamiltonian (or Fockian) costruction are required in each integration time step. The proposed dy- namics is derived for a general free-energy potential surface valid at finite electronic temperatures within hybrid density functional theory. Even in the event of irregular functional behavior that may cause a dynamical instability, the optimization-free limit represents an ideal starting guess for force calculations that may require a more elaborate iterative electronic ground state optimization. Our optimization-free dynamics thus represents ...

  10. Environment--Induced Decoherence, Classicality and Consistency of Quantum Histories

    E-Print Network [OSTI]

    Juan Pablo Paz; Wojciech Hubert Zurek

    1993-04-20T23:59:59.000Z

    We prove that for an open system, in the Markovian regime, it is always possible to construct an infinite number of non trivial sets of histories that exactly satisfy the probability sum rules. In spite of being perfectly consistent, these sets manifest a very non--classical behavior: they are quite unstable under the addition of an extra instant to the list of times defining the history. To eliminate this feature --whose implications for the interpretation of the formalism we discuss-- and to achieve the stability that characterizes the quasiclassical domain, it is necessary to separate the instants which define the history by time intervals significantly larger than the typical decoherence time. In this case environment induced superselection is very effective and the quasiclassical domain is characterized by histories constructed with ``pointer projectors''.

  11. Dual Superconductivity in G2 group

    E-Print Network [OSTI]

    G. Cossu; M. D'Elia; A. Di Giacomo; B. Lucini; C. Pica

    2006-09-28T23:59:59.000Z

    We investigate the dual superconductivity mechanism in the exceptional group $G_2$. This is a centerless group (no 't Hooft flux vortices are allowed) and we check for the presence of a magnetic monopole condensate in the confined phase by measuring on the lattice a disorder parameter related to the vacuum expectation value of an operator carrying magnetic charge. The behaviour of the disorder parameter is consistent with the dual superconductor picture. A first step of an analysis on the thermodynamical properties of the theory is conducted by mean of this operator.

  12. Representations of groups of order 16

    E-Print Network [OSTI]

    McCarthy, Edmond Robert

    1966-01-01T23:59:59.000Z

    , 16) K - {10, 14) The analysis al. so shows that G contains three subgroups H. of order 2; only one of which is normal. This is the i subgroup consisting of the elements (1, 5}. The factor group G/H is isomorphic to C 4 C2. Since the Cayley table..., 13 10, 14 11, 15 37 With this correspondence established we need only refer back to Table II, the character table of C 4 C2, to begin writing out representations of Group Six. For example, in Table II we find D&(3) = -1. If TK...

  13. Self-Consistent Criteria for Evaluation of Neutron Interaction

    SciTech Connect (OSTI)

    Henry H.F,Newlon C.E.,Knight J.R.

    2007-08-02T23:59:59.000Z

    New safe interaction criteria for containers of fissionable materials handled at the Oak Ridge Gaseous Diffusion Plant have been developed on the basis of an interaction theory using the basic concepts of a safe solid angle subtended by interacting containers, and the multiplication factor as determined by two-group theory for an individually safe containers The calculated results agree satisfactorily with experimental data obtained with identical interacting units involving both cylinders and slabs containing highly enriched uranium, the core compositions of which were varied between H/U-235 atomic ratios of 44.3 and 337. The application of the derived interaction criteria to items containing material with low moderation or low U-235 assay, and to containers for which nuclear safety is dependent upon control of the U-235 mass or U-235 concentration is discussed.

  14. Multi-wavelength constraints on the inflationary consistency relation

    E-Print Network [OSTI]

    Meerburg, P Daniel; Hadzhiyska, Boryana; Meyers, Joel

    2015-01-01T23:59:59.000Z

    We present the first attempt to use a combination of CMB, LIGO, and PPTA data to constrain both the tilt and the running of primordial tensor power spectrum through constraints on the gravitational wave energy density generated in the early universe. Combining measurements at different cosmological scales highlights how complementary data can be used to test the predictions of early universe models including the inflationary consistency relation. Current data prefers a slightly positive tilt ($n_t = 0.13^{+0.54}_{-0.75}$) and a negative running ($n_{t, {\\rm run}} < -0.25$) for the tensor power spectrum spectrum. Interestingly, the addition of direct gravitational wave detector data puts strong bounds on the tensor-to-scalar ratio $r < 0.2 $ since the large positive tensor tilt preferred by the Planck temperature power spectrum is no longer allowed. We comment on possible effects of a large positive tilt on the background expansion and show that depending on the assumptions regarding the UV cutoff ($k_{\\...

  15. IMPROVING CONSISTENCY OF PERFORMANCE ASSESSMENTS IN THE DOE COMPLEX

    SciTech Connect (OSTI)

    Seitz, R; Elmer Wilhite, E

    2009-01-20T23:59:59.000Z

    The low-level waste (LLW) performance assessment (PA) process has been traditionally focused on disposal facilities at a few United States Department of Energy (USDOE) sites and commercial disposal facilities. In recent years, there has been a dramatic increase in the scope of the use of PA-like modeling approaches, involving multiple activities, facilities, contractors and regulators. The scope now includes, for example: (1) National Environmental Policy Act (NEPA) assessments, (2) CERCLA disposal cells, (3) Waste Determinations and High-Level Waste (HLW) Closure activities, (4) Potential on-site disposal of Transuranic (TRU) waste, and (5) In-situ decommissioning (including potential use of existing facilities for disposal). The dramatic increase in the variety of activities requiring more detailed modeling has resulted in a similar increase in the potential for inconsistency in approaches both at a site and complexwide scale. This paper includes a summary of USDOE Environmental Management (EM) sponsored initiatives and activities for improved consistency. New initiatives entitled the Performance Assessment Community of Practice and Performance Assessment Assistance Team are also introduced.

  16. Consistency of the tachyon warm inflationary universe models

    E-Print Network [OSTI]

    Zhang, Xiao-Min

    2013-01-01T23:59:59.000Z

    The consistency of the tachyon warm inflationary models is studied. We perform a linear stability analysis to give the slow-roll conditions characterized by the potential slow-roll (PSR) parameters for the existence of a tachyon warm inflationary attractor in the system. The PSR parameters in the tachyon warm inflationary models are new defined in our paper. The two cases of an exponential potential and an inverse power law potential are studied when the dissipative coefficient $\\Gamma=\\Gamma_0$ and $\\Gamma=\\Gamma(\\phi)$, respectively. A crucial condition for a workable tachyon warm inflationary model characterized by the Hubble slow-roll (HSR) parameter $\\epsilon_{_H}$ is obtained and extends to some other inflationary models. We can get a proper number of the e-folds in both cases of the tachyon warm inflation, contrary to some existing papers. We also point out that a constant dissipative coefficient $(\\Gamma=\\Gamma_0)$ is usually not a good assumption for a workable warm inflationary model.

  17. Consistency of the tachyon warm inflationary universe models

    E-Print Network [OSTI]

    Xiao-Min Zhang; Jian-Yang Zhu

    2014-01-31T23:59:59.000Z

    This study concerns the consistency of the tachyon warm inflationary models. A linear stability analysis is performed to find the slow-roll conditions, characterized by the potential slow-roll (PSR) parameters, for the existence of a tachyon warm inflationary attractor in the system. The PSR parameters in the tachyon warm inflationary models are redefined. Two cases, an exponential potential and an inverse power-law potential, are studied, when the dissipative coefficient $\\Gamma=\\Gamma_0$ and $\\Gamma=\\Gamma(\\phi)$, respectively. A crucial condition is obtained for a tachyon warm inflationary model characterized by the Hubble slow-roll (HSR) parameter $\\epsilon_{_H}$, and the condition is extendable to some other inflationary models as well. A proper number of e-folds is obtained in both cases of the tachyon warm inflation, in contrast to existing works. It is also found that a constant dissipative coefficient $(\\Gamma=\\Gamma_0)$ is usually not a suitable assumption for a warm inflationary model.

  18. First principles molecular dynamics without self-consistent field optimization

    SciTech Connect (OSTI)

    Souvatzis, Petros, E-mail: petros.souvatsiz@fysik.uu.se [Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120 Uppsala (Sweden)] [Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120 Uppsala (Sweden); Niklasson, Anders M. N., E-mail: amn@lanl.gov [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2014-01-28T23:59:59.000Z

    We present a first principles molecular dynamics approach that is based on time-reversible extended Lagrangian Born-Oppenheimer molecular dynamics [A. M. N. Niklasson, Phys. Rev. Lett. 100, 123004 (2008)] in the limit of vanishing self-consistent field optimization. The optimization-free dynamics keeps the computational cost to a minimum and typically provides molecular trajectories that closely follow the exact Born-Oppenheimer potential energy surface. Only one single diagonalization and Hamiltonian (or Fockian) construction are required in each integration time step. The proposed dynamics is derived for a general free-energy potential surface valid at finite electronic temperatures within hybrid density functional theory. Even in the event of irregular functional behavior that may cause a dynamical instability, the optimization-free limit represents a natural starting guess for force calculations that may require a more elaborate iterative electronic ground state optimization. Our optimization-free dynamics thus represents a flexible theoretical framework for a broad and general class of ab initio molecular dynamics simulations.

  19. THE PRODUCT CONSISTENCY TEST HOW AND WHY IT WAS DEVELOPED

    SciTech Connect (OSTI)

    Jantzen, C; Ned Bibler, N

    2008-12-15T23:59:59.000Z

    The Product Consistency Test (PCT), American Society for Testing Materials (ASTM) Standard C1285, is currently used world wide for testing glass and glass-ceramic waste forms for high level waste (HLW), low level waste (LLW), and hazardous wastes. Development of the PCT was initiated in 1986 because HLW glass waste forms required extensive characterization before actual production began and required continued characterization during production ({ge}25 years). Non-radioactive startup was in 1994 and radioactive startup was in 1996. The PCT underwent extensive development from 1986-1994 and became an ASTM consensus standard in 1994. During the extensive laboratory testing and inter- and intra-laboratory round robins using non-radioactive and radioactive glasses, the PCT was shown to be very reproducible, to yield reliable results rapidly, to distinguish between glasses of different durability and homogeneity, and to easily be performed in shielded cell facilities with radioactive samples. In 1997, the scope was broadened to include hazardous and mixed (radioactive and hazardous) waste glasses. In 2002, the scope was broadened to include glass-ceramic waste forms which are currently being recommended for second generation nuclear wastes yet to be generated in the nuclear renaissance. Since the PCT has proven useful for glass-ceramics with up to 75% ceramic component and has been used to evaluate Pu ceramic waste forms, the use of this test for other ceramic/mineral waste forms such as geopolymers, hydroceramics, and fluidized bed steam reformer mineralized product is under investigation.

  20. Finite group symmetry breaking

    E-Print Network [OSTI]

    G. Gaeta

    2005-10-02T23:59:59.000Z

    Finite group symmetry is commonplace in Physics, in particular through crystallographic groups occurring in condensed matter physics -- but also through the inversions (C,P,T and their combinations) occurring in high energy physics and field theory. The breaking of finite groups symmetry has thus been thoroughly studied, and general approaches exist to investigate it. In Landau theory, the state of a system is described by a finite dimensional variable (the {\\it order parameter}), and physical states correspond to minima of a potential, invariant under a group. In this article we describe the basics of symmetry breaking analysis for systems described by a symmetric polynomial; in particular we discuss generic symmetry breakings, i.e. those determined by the symmetry properties themselves and independent on the details of the polynomial describing a concrete system. We also discuss how the plethora of invariant polynomials can be to some extent reduced by means of changes of coordinates, i.e. how one can reduce to consider certain types of polynomials with no loss of generality. Finally, we will give some indications on extension of this theory, i.e. on how one deals with symmetry breakings for more general groups and/or more general physical systems.

  1. The HERMES RICH group

    E-Print Network [OSTI]

    N. Akopov; E. C. Aschenauer; K. Bailey; S. Bernreuther; N. Bianchi; G. P. Capitani; P. Carter; E. Cisbani; R. De Leo; E. De Sanctis; V. Djordjadze; S. Frullani; F. Garibaldi; J. -o. Hansen; B. Hommez; M. Iodice; H. E. Jackson; P. Jung; R. Kaiser; J. Kanesaka; R. Kowalczyk; L. Lagamba; A. Maas; V. Muccifora; K. Negodaeva; W. -d. Nowak; T. G. O’neill; D. H. Potterveld; D. Ryckbosch; Y. Sakemi; F. Sato; A. Schwind; T. -a. Shibata; K. Suetsugu; E. Thomas; M. Tytgat; G. M. Urciuoli; K. Van De Kerckhove; R. Van De Vyver; S. Yoneyama; H. Zohrabian; L. F. Zhang

    2001-01-01T23:59:59.000Z

    , homogeneous and hydrophobic aerogel. A lightweight mirror was constructed using a newly perfected technique to make resin-coated carbon-fiber surfaces of optical quality. The photon detector consists of 1934 photomultiplier tubes (PMT) for each detector half, held in a soft steel matrix to provide

  2. Illinois Wind Workers Group

    SciTech Connect (OSTI)

    David G. Loomis

    2012-05-28T23:59:59.000Z

    The Illinois Wind Working Group (IWWG) was founded in 2006 with about 15 members. It has grown to over 200 members today representing all aspects of the wind industry across the State of Illinois. In 2008, the IWWG developed a strategic plan to give direction to the group and its activities. The strategic plan identifies ways to address critical market barriers to the further penetration of wind. The key to addressing these market barriers is public education and outreach. Since Illinois has a restructured electricity market, utilities no longer have a strong control over the addition of new capacity within the state. Instead, market acceptance depends on willing landowners to lease land and willing county officials to site wind farms. Many times these groups are uninformed about the benefits of wind energy and unfamiliar with the process. Therefore, many of the project objectives focus on conferences, forum, databases and research that will allow these stakeholders to make well-educated decisions.

  3. Upgraded Coal Interest Group

    SciTech Connect (OSTI)

    Evan Hughes

    2009-01-08T23:59:59.000Z

    The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

  4. Bell, group and tangle

    SciTech Connect (OSTI)

    Solomon, A. I., E-mail: a.i.solomon@open.ac.u [Open University, Department of Physics (United Kingdom)

    2010-03-15T23:59:59.000Z

    The 'Bell' of the title refers to bipartite Bell states, and their extensions to, for example, tripartite systems. The 'Group' of the title is the Braid Group in its various representations; while 'Tangle' refers to the property of entanglement which is present in both of these scenarios. The objective of this note is to explore the relation between Quantum Entanglement and Topological Links, and to show that the use of the language of entanglement in both cases is more than one of linguistic analogy.

  5. Magnetism Theory Group / POSTECH Magnetism Theory Group / POSTECH

    E-Print Network [OSTI]

    Min, Byung Il

    Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH J.H . Park et al. #12;'s of FeinCsm e tal The chargeandorbitalordering geom etryin YB a C o 2 O 5 S. K. Kwon etal .Magnetism Theory

  6. GROUPED'ANALYSEETDETHORIECONOMIQUELYONSTTIENNE Stabilitcroissanceetperformanceconomique

    E-Print Network [OSTI]

    Boyer, Edmond

    GROUPED'ANALYSEETDETHÉORIEÉCONOMIQUELYONSTÉTIENNE WP1026 économique, stabilité, canal d'investissement. Classification JEL : B22, E32, O42 1 Dr. Zied Ftiti. Université de Lyon, Université Lyon 2, F - 69007, Lyon, France. CNRS, GATE Lyon-St Etienne, UMR n° 5824

  7. GROUPED'ANALYSEETDETHORIECONOMIQUELYONSTTIENNE Sectorbasedexplanationofverticalintegrationin

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    GROUPED'ANALYSEETDETHÉORIEÉCONOMIQUELYONSTÉTIENNE WP1136, France CNRS, GATE Lyon-St Etienne, UMR n° 5824, 69130, Ecully, France Université de Saint-Etienne, Jean. Reif, G. Solard, 2009 ; B. Mura, 2010). A network relates to a network of downstream firms using

  8. GROUPED'ANALYSEETDETHORIECONOMIQUELYONSTTIENNE Dynamicmodelsofresidentialsgrgation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    GROUPED'ANALYSEETDETHÉORIEÉCONOMIQUELYONSTÉTIENNE WP1017 #12;DYNAMIC MODELS OF RESIDENTIAL SEGREGATION: AN ANALYTICAL SOLUTION S´ebastian GRAUWINa,b,c , Florence GOFFETTE-NAGOTa,d, , Pablo JENSENa,b,c,e aUniversit´e de Lyon, Lyon, F-69007, France bInstitut rh

  9. Group Analysis Jean Daunizeau

    E-Print Network [OSTI]

    Daunizeau, Jean

    ) is measurement error True response magnitude is fixed 111 Xy Fixed effect #12;Random effects-sphericity modelling Examples Power and efficiency: summary Overview #12;Group analysis: fixed versus random effects Two RFX methods: Holmes & Friston (HF) approach non-sphericity modelling Examples Power

  10. TKN Telecommunication Networks Group

    E-Print Network [OSTI]

    Wichmann, Felix

    consumption. Quite some effort has already been undertaken to address this issue, striving for low-energy trends in the power consumption, the NICs and APs are classified according to the following aspects Group Power consumption of WLAN network elements Salvatore Chiaravalloti, Filip Idzikowski, Lukasz

  11. Research Groups - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand Requirements Recently ApprovedReliabilityPrincipalResearch Finds VitaminResearch Groups

  12. ALS Communications Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch >InternshipDepartmentNeutrino-Induced1ALS Communications Group Print

  13. # Energy Measuremenfs Group

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -KWatertown Arsenal -Center05Sites »ri

  14. Environmental/Interest Groups

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling CorpNew 1325.8.Enaineer;/:4,4 (; ...)369s ..T

  15. Specific Group Hardware

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3Biology|SolarSpeakers BureauSpecialSpecific Group

  16. Digital Technology Group Computer Laboratory

    E-Print Network [OSTI]

    Cambridge, University of

    Digital Technology Group 1/20 Computer Laboratory Digital Technology Group Computer Laboratory William R Carson Building on the presentation by Francisco Monteiro Matlab #12;Digital Technology Group 2/20 Computer Laboratory Digital Technology Group Computer Laboratory The product: MATLAB® - The Language

  17. High Temperature Membrane Working Group

    Broader source: Energy.gov [DOE]

    This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

  18. Winter 2015 Positive Parenting Group

    E-Print Network [OSTI]

    Winter 2015 Positive Parenting Group This is an eight-week parent group series starting Monday, January 12, 2015 Future parent group sessions to be held: January 26 (no group 19th ) February 2, 9 and 23 (no group 16th ) and March 2, 9 and 16 6:00 p.m. to 8:00 p.m. Room 145 of the Clinical Services

  19. Working Group Report: Sensors

    SciTech Connect (OSTI)

    Artuso, M.; et al.,

    2013-10-18T23:59:59.000Z

    Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.

  20. Group work with families of nursing home residents 

    E-Print Network [OSTI]

    Duncan, Richard Tillett

    1985-01-01T23:59:59.000Z

    the counseling orientation. Both formats have been offered to families of nursing home residents, but it is not known if one format offers more positive results than the other, or if there is any difference. The study attempts to measure results in terms... consist. Thus, one of the goals of this study was to eventually improve the programs and services which nursing homes provide. By observing and recording the development of each group and by measuring each group's effectiveness in the terms described...

  1. Process of Integrating Screening and Detailed Risk-based Modeling Analyses to Ensure Consistent and Scientifically Defensible Results

    SciTech Connect (OSTI)

    Buck, John W.; McDonald, John P.; Taira, Randal Y.

    2002-11-01T23:59:59.000Z

    To support cleanup and closure of these tanks, modeling is performed to understand and predict potential impacts to human health and the environment. Pacific Northwest National Laboratory developed a screening tool for the United States Department of Energy, Office of River Protection that estimates the long-term human health risk, from a strategic planning perspective, posed by potential tank releases to the environment. This tool is being conditioned to more detailed model analyses to ensure consistency between studies and to provide scientific defensibility. Once the conditioning is complete, the system will be used to screen alternative cleanup and closure strategies. The integration of screening and detailed models provides consistent analyses, efficiencies in resources, and positive feedback between the various modeling groups. This approach of conditioning a screening methodology to more detailed analyses provides decision-makers with timely and defensible information and increases confidence in the results on the part of clients, regulators, and stakeholders.

  2. ROSAT Observations of Compact Groups of Galaxies

    E-Print Network [OSTI]

    P. Saracco; P. Ciliegi

    1994-12-15T23:59:59.000Z

    A search for X-ray emission from compact groups revealed detection from 8 out of the 12 HCG images extracted from the ROSAT public archive. For two of them the X-ray emission originates from galaxies in the group. On the contrary, three groups show an extended emission clearly caused by hot intracluster gas. A Raymond-Smith hot plasma model provides an excellent fit to the X-ray spectra. The estimated temperatures are distributed in a quite narrow range (from 0.73 to 0.92 keV) and are consistent, within the errors, with 0.9 keV. The luminosity ranging from 0.75 to $5.1\\cdot10^{42}$erg s$^{-1}$. The most relevant result is the low metal abundance surely detected in two of them and likely in a third that characterizes the hot gas cloud responsible for the X-ray emission. The data concerning the remaining 3 detected compact groups are not sufficient to discriminate with certainty between diffuse and/or point-like X-ray emission. However the results of the spectral analysis point to the presence of a hot gas again with low metal abundance.

  3. Universal consistent truncation for 6d/7d gauge/gravity duals

    E-Print Network [OSTI]

    Achilleas Passias; Andrea Rota; Alessandro Tomasiello

    2015-06-17T23:59:59.000Z

    Recently, AdS_7 solutions of IIA supergravity have been classified; there are infinitely many of them, whose expression is known analytically, and with internal space of S^3 topology. Their field theory duals are six-dimensional (1,0) SCFT's. In this paper we show that for each of these AdS_7 solutions there exists a consistent truncation from massive IIA supergravity to minimal gauged supergravity in seven dimensions. This theory has an SU(2) gauge group, and a single scalar, whose value is related to a certain distortion of the internal S^3. This explains the universality observed in recent work on AdS_5 and AdS_4 solutions dual to compactifications of the (1,0) SCFT_6's. Thanks to previous work on the minimal gauged supergravity, the truncation also implies the existence of holographic RG-flows connecting those solutions to the AdS_7 vacuum, as well as new classes of IIA AdS_3 solutions.

  4. Universal consistent truncation for 6d/7d gauge/gravity duals

    E-Print Network [OSTI]

    Passias, Achilleas; Tomasiello, Alessandro

    2015-01-01T23:59:59.000Z

    Recently, AdS_7 solutions of IIA supergravity have been classified; there are infinitely many of them, whose expression is known analytically, and with internal space of S^3 topology. Their field theory duals are six-dimensional (1,0) SCFT's. In this paper we show that for each of these AdS_7 solutions there exists a consistent truncation from massive IIA supergravity to minimal gauged supergravity in seven dimensions. This theory has an SU(2) gauge group, and a single scalar, whose value is related to a certain distortion of the internal S^3. This explains the universality observed in recent work on AdS_5 and AdS_4 solutions dual to compactifications of the (1,0) SCFT_6's. Thanks to previous work on the minimal gauged supergravity, the truncation also implies the existence of holographic RG-flows connecting those solutions to the AdS_7 vacuum, as well as new classes of IIA AdS_3 solutions.

  5. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2001 prepared by: Data Management Group Joint Program..............................................................................2 Text Based Data Retrieval System `drs' ..........................................................2 Internet Browser Data Retrieval System (iDRS)..............................................3 Complex Data

  6. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 1999 prepared by: Data Management Group Joint Program................................................................. 1 INFORMATION PROCESSING ............................................. 2 Text Based Data Retrieval System `drs' ........................ 2 Internet Browser Data Retrieval System (iDRS) ............ 3

  7. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    iv Data Management Group Annual Report 2003 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located ........................................................................................................ 3 Text-based Data Retrieval System `drs

  8. Weighter Long Term by Group

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

    Weighted Running Jobs by Group Weighted Running Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 14:00:02...

  9. INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP

    E-Print Network [OSTI]

    space exploration infrastructure standards facilitating interoperability through an international with relevant existing international working groups/ organisations. · Preparation and Organization of a WS1 INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP WORKPLAN Update following 3rd ISECG Meeting

  10. ASD Groups | Advanced Photon Source

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

    ASD Groups Accelerator Operations and Physics Applies integrated expertise in accelerator physics, operations techniques, safety systems, software development, and numerical...

  11. Practical Training in Microalgae Utilization with Key Industry Engineering Group Key Industry Engineering Group s.r.o. has developed a biotechnology for the production of an animal

    E-Print Network [OSTI]

    Practical Training in Microalgae Utilization with Key Industry Engineering Group Key Industry on a suspension of Planktochlorella microalgae. The product consists of a suspension of algae in the growing

  12. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2000 prepared by: Data Management Group Joint Program the operation of the EMME/2 simu- lation package on the Data Management Group's computer system. During the year computing resource at the DMG. A major challenge in 2000 was to maintain this service while operating out

  13. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2004 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located of the funding partners: Ministry of Transportation, Ontario #12;SUMMARY The Data Management Group (DMG

  14. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 1997 #12;Data Management Group Annual Report 1997 A co-operative project that is jointly funded by members of the Toronto Area Transportation Planning Data Collection: (416) 978-3941 #12;Data Management Group 1997 Annual Report Table of Contents 1 INTRODUCTION

  15. Water Resources Working Group Report

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Water Resources Working Group Report This report provided content for the Wisconsin Initiative in February 2011. #12;Water Resources Working Group Wisconsin Initiative on Climate Change Impacts October 2010 #12;Water Resources Working Group Members ­ WICCI Tim Asplund (Co-Chair) - Wisconsin Department

  16. Modified definition of group velocity and electromagnetic energy conservation equation

    E-Print Network [OSTI]

    Changbiao Wang

    2015-01-19T23:59:59.000Z

    The classical definition of group velocity has two flaws: (a) the group velocity can be greater than the phase velocity in a non-dispersive, lossless, non-conducting, anisotropic uniform medium; (b) the definition is not consistent with the principle of relativity for a plane wave in a moving isotropic uniform medium. To remove the flaws, a modified definition is proposed. A criterion is set up to identify the justification of group velocity definition. A "superluminal power flow" is constructed to show that the electromagnetic energy conservation equation cannot uniquely define the power flow if the principle of Fermat is not taken into account.

  17. A Self-Consistent Method to Assess Air Quality Co-Benefits

    E-Print Network [OSTI]

    A Self-Consistent Method to Assess Air Quality Co-Benefits from US Climate Policies Rebecca Saari;1 A Self-Consistent Method to Assess Air Quality Co-Benefits from US Climate Policies Rebecca Saari

  18. A Self-Consistent Hubbard U Density-Functional Theory Approach...

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

    Self-Consistent Hubbard U Density-Functional Theory Approach to the Addition-Elimination Reactions of Hydrocarbons on Bare FeO A Self-Consistent Hubbard U Density-Functional Theory...

  19. TEC Working Group Topic Groups Rail Conference Call Summaries...

    Office of Environmental Management (EM)

    September 11, 1998 Meeting June 22, 1998 Meeting May 27, 1998 Meeting November 3, 1997 Meeting September 18, 1997 Meeting More Documents & Publications TEC Working Group...

  20. On The Harmonic Oscillator Group

    E-Print Network [OSTI]

    Raquel M. Lopez; Sergei K. Suslov; Jose M. Vega-Guzman

    2011-12-04T23:59:59.000Z

    We discuss the maximum kinematical invariance group of the quantum harmonic oscillator from a view point of the Ermakov-type system. A six parameter family of the square integrable oscillator wave functions, which seems cannot be obtained by the standard separation of variables, is presented as an example. The invariance group of generalized driven harmonic oscillator is shown to be isomorphic to the corresponding Schroedinger group of the free particle.

  1. Safarevic's Theorem on Solvable Groups as Galois Groups

    E-Print Network [OSTI]

    extension Kjk with Galois group G(Kjk) ¸ = G. Ÿ SafareviŸc proved this result in 1954. The intricate proof ) are embedable into G. Then there exists a Galois extension Kjk with Galois group isomorphic to G, which

  2. Neil 65 Group Picture Neil 65 Group Picture

    E-Print Network [OSTI]

    Mohar, Bojan

    Neil 65 Group Picture Neil 65 Group Picture December 14, 2003 Row 1: Tom Dowling, Nolan Mc-Marie Belcastro, Chris Stephens, Rajneesh Hegde Row 2: Paul Wollan, Bruce Richter, Mike Plummer, Xiaoya Zha, Dan Bannai, Mike Albertson, Joan Hutchinson, Matt Devos, Tom Zaslovsky, Mark Ellingham, Sandra Kingan, James

  3. Presentation SCA Group 1 SCA Group 2007-03-15

    E-Print Network [OSTI]

    -03-15 Every day, millions of people use our products We are here to develop and improve everyday lives. People SCA Group 2007-03-15 SCA is a global consumer goods and paper company We offer personal care products #12;4 SCA Group 2007-03-15 Personal Care Tissue Packaging Forest Products Business areas Operations

  4. Infrared Thermography (IRT) Working Group

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

    Infrared Thermography (IRT) Working Group Sco McWilliams U.S. Photovoltaic Manufacturing Consor;um (PVMC) Infrared Thermography Infrared Thermography (IRT) has been demonstrated...

  5. Lorentz Group in Ray Optics

    E-Print Network [OSTI]

    S. Baskal; E. Georgieva; Y. S. Kim; M. E. Noz

    2004-01-18T23:59:59.000Z

    It has been almost one hundred years since Einstein formulated his special theory of relativity in 1905. He showed that the basic space-time symmetry is dictated by the Lorentz group. It is shown that this group of Lorentz transformations is not only applicable to special relativity, but also constitutes the scientific language for optical sciences. It is noted that coherent and squeezed states of light are representations of the Lorentz group. The Lorentz group is also the basic underlying language for classical ray optics, including polarization optics, interferometers, the Poincare\\'e sphere, one-lens optics, multi-lens optics, laser cavities, as well multilayer optics.

  6. Physics Division: Subatomic Physics Group

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

    Subatomic Physics Physics home Subatomic Physics Site Home About Us Groups Applied Modern Physics, P-21 Neutron Science and Technology, P-23 Plasma Physics, P-24 Subatomic...

  7. SHELXT – Integrated space-group and crystal-structure determination

    SciTech Connect (OSTI)

    Sheldrick, George M., E-mail: gsheldr@shelx.uni-ac.gwdg.de [Georg-August Universität Göttingen, Tammannstrasse 4, Göttingen, 37077 (Germany)

    2015-01-01T23:59:59.000Z

    SHELXT automates routine small-molecule structure determination starting from single-crystal reflection data, the Laue group and a reasonable guess as to which elements might be present. The new computer program SHELXT employs a novel dual-space algorithm to solve the phase problem for single-crystal reflection data expanded to the space group P1. Missing data are taken into account and the resolution extended if necessary. All space groups in the specified Laue group are tested to find which are consistent with the P1 phases. After applying the resulting origin shifts and space-group symmetry, the solutions are subject to further dual-space recycling followed by a peak search and summation of the electron density around each peak. Elements are assigned to give the best fit to the integrated peak densities and if necessary additional elements are considered. An isotropic refinement is followed for non-centrosymmetric space groups by the calculation of a Flack parameter and, if appropriate, inversion of the structure. The structure is assembled to maximize its connectivity and centred optimally in the unit cell. SHELXT has already solved many thousand structures with a high success rate, and is optimized for multiprocessor computers. It is, however, unsuitable for severely disordered and twinned structures because it is based on the assumption that the structure consists of atoms.

  8. Not in your backyard : transitive compellence, base states, and violent non-state groups

    E-Print Network [OSTI]

    Fraiman, Keren Eva (Fraiman Stieber)

    2014-01-01T23:59:59.000Z

    Violent non-state actors have consistently served as a destabilizing force within the international system. These groups create a base within a state's sovereign territory, the "base state," and utilize this platform to ...

  9. Monte Carlo Filtering on Lie Groups Alessandro Chiuso 1 and Stefano Soatto 2

    E-Print Network [OSTI]

    Soatto, Stefano

    Monte Carlo Filtering on Lie Groups Alessandro Chiuso 1 and Stefano Soatto 2 Abstract We propose to be consistent with the updated conditional distribution. The algorithm proposed, like other Monte Carlo methods

  10. Federal Utility Partnership Working Group

    Broader source: Energy.gov [DOE]

    The Federal Utility Partnership Working Group (FUPWG) establishes partnerships and facilitates communications among Federal agencies, utilities, and energy service companies. The group develops strategies to implement cost-effective energy efficiency and water conservation projects through utility incentive programs at Federal sites.

  11. Research documentation per participating group

    E-Print Network [OSTI]

    Franssen, Michael

    Research documentation per participating group #12;2. RESEARCH DOCUMENTATION OF THE GROUP SYSTEM Management Hybrid trucks StDy Steen, R. v.d. (PhD 3) FEM Tyre Modelling StDy 5.4 Mechanical Design Bedem, Ir

  12. Design consistency and driver error as reflected by driver workload and accident rates

    E-Print Network [OSTI]

    Wooldridge, Mark Douglas

    1992-01-01T23:59:59.000Z

    primary directions, speed consistency and driver workload. Speed consistency consists of analyzing predicted speeds on a highway and striving to keep those speeds within a narrow range. Several major research studies have provided methodologies... participating in the Texas Department of Transportation's Masters in Civil Engineering (MSCE) program, and performed the research that formed the basis for this report under the auspices of the Texas Transportation Institute. The data used as a basis...

  13. Energy Efficient Memory Speculation With Memory Latency Tolerance Supporting Sequential Consistency Without A Coherence Protocol

    E-Print Network [OSTI]

    Munday, David Alexander

    2013-01-01T23:59:59.000Z

    1–17, Sept. 2006. [35] Derek Hower. Acoherent shared memory.memory consistency models. Derek Hower [35] pro- posed the

  14. Performance of hybrid quad generation system consisting of solid oxide fuel cell system and

    E-Print Network [OSTI]

    Liso, Vincenzo

    Performance of hybrid quad generation system consisting of solid oxide fuel cell system. Keywords: Energy system modeling, Solid oxide fuel cell, Absorption heat pump. 1. Introduction 1

  15. Marseglia Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu an Group JumpNew Hampshire:Marin EnergyChoiceMarseglia Group

  16. Groups

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/ExplorationGoods | OpenInformationMagnetics

  17. Page 1 of 2 80.3 Consistent Treatment of Costs

    E-Print Network [OSTI]

    Yang, Eui-Hyeok

    Page 1 of 2 80.3 Consistent Treatment of Costs Policy Name: CONSISTENT TREATMENT OF COSTS October 2008 1. Policy Statement OMB Circular A21, Cost Principles for Educational Institutions, section J, contains a list of items that are deemed unallowable as direct costs on federally sponsored

  18. A generalized self consistent model for effective elastic moduli of human dentine

    E-Print Network [OSTI]

    Qin, Qinghua

    Consistent Model for cell model of fiber-reinforced composites is extended to the case of hollow cylinder model and the corresponding cell model is chosen to consist of a circular hollow cylinder filled from other models such as nano-indentation method. Ã? 2006 Elsevier Ltd. All rights reserved. Keywords

  19. Suppressing Multi-Channel Ultra-Low-Field MRI Measurement Noise Using Data Consistency and Image

    E-Print Network [OSTI]

    Suppressing Multi-Channel Ultra-Low-Field MRI Measurement Noise Using Data Consistency and Image of Mathematics, National Taiwan University, Taipei, Taiwan, 4 Elekta Oy, Helsinki, Finland Abstract Ultra-low. (2013) Suppressing Multi-Channel Ultra-Low-Field MRI Measurement Noise Using Data Consistency and Image

  20. Consistent parametric estimation of the intensity of a spatial-temporal point process.

    E-Print Network [OSTI]

    Schoenberg, Frederic Paik (Rick)

    Consistent parametric estimation of the intensity of a spatial-temporal point process. Frederic under which parametric estimates of the intensity of a spatial-temporal point process are consistent. Although the actual point process being estimated may not be Poisson, an estimate involving maximizing

  1. Self-consistent solution of the Schwinger-Dyson equations for the nucleon and meson propagators

    SciTech Connect (OSTI)

    Bracco, M.E.; Eiras, A.; Krein, G. [Instituto de Fisica Teorica-Universidade Estadual Paulista, Rua Pamplona, 145-01405-900 Sao Paulo, Sao Paulo (Brazil)] [Instituto de Fisica Teorica-Universidade Estadual Paulista, Rua Pamplona, 145-01405-900 Sao Paulo, Sao Paulo (Brazil); Wilets, L. [Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States)] [Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States)

    1994-03-01T23:59:59.000Z

    The Schwinger-Dyson equations for the nucleon and meson propagators are solved self-consistently in an approximation that goes beyond the Hartree-Fock approximation. The traditional approach consists in solving the nucleon Schwinger-Dyson equation with bare meson propagators and bare meson-nucleon vertices; the corrections to the meson propagators are calculated using the bare nucleon propagator and bare nucleon-meson vertices. It is known that such an approximation scheme produces the appearance of ghost poles in the propagators. In this paper the coupled system of Schwinger-Dyson equations for the nucleon and the meson propagators are solved self-consistently including vertex corrections. The interplay of self-consistency and vertex corrections on the ghosts problem is investigated. It is found that the self-consistency does not affect significantly the spectral properties of the propagators. In particular, it does not affect the appearance of the ghost poles in the propagators.

  2. Midwest Hydro Users Group Meeting

    Broader source: Energy.gov [DOE]

    The Midwest Hydro Users Group will be holding their annual Fall meeting on November 12th and 13th in Wausau, Wisconsin.  An Owners-only meeting on the afternoon of the 12th followed by a full...

  3. Galois Groups of Schubert Problems

    E-Print Network [OSTI]

    Martin Del Campo Sanchez, Abraham

    2012-10-19T23:59:59.000Z

    GALOIS GROUPS OF SCHUBERT PROBLEMS A Dissertation by ABRAHAM MARTIN DEL CAMPO SANCHEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY... August 2012 Major Subject: Mathematics GALOIS GROUPS OF SCHUBERT PROBLEMS A Dissertation by ABRAHAM MARTIN DEL CAMPO SANCHEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  4. TEC Working Group Topic Groups Routing | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2Uranium Transferon the PassingRouting TEC Working Group Topic Groups Routing

  5. TEC Working Group Topic Groups Section 180(c) Meeting Summaries |

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2Uranium Transferon the PassingRouting TEC Working Group Topic Groups

  6. Hanergy Holdings Group Company Ltd formerly Farsighted Group aka Huarui

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open Energy Information Hanergy Holdings Group Company Ltd

  7. Validation of and enhancements to an operating-speed-based geometric design consistency evaluation model

    E-Print Network [OSTI]

    Collins, Kent Michael

    1995-01-01T23:59:59.000Z

    This thesis documents efforts to validate two elements related to an operating-speed-based geometric design consistency evaluation procedure: (1) the speed reduction estimation ability of the model, and (2) assumptions about acceleration...

  8. Analysis of Dual Consistency for Discontinuous Galerkin Discretizations of Source Terms

    E-Print Network [OSTI]

    Darmofal, David L.

    The effects of dual consistency on discontinuous Galerkin discretizations of solution and solution gradient dependent source terms are examined. Two common discretizations are analyzed: the standard weighting technique for ...

  9. Consistency Management with Repair Actions Christian Nentwich, Wolfgang Emmerich and Anthony Finkelstein

    E-Print Network [OSTI]

    van der Hoek, André

    Consistency Management with Repair Actions Christian Nentwich, Wolfgang Emmerich and Anthony Finkelstein Department of Computer Science University College London Gower Street, London WC1E 6BT, UK {c.nentwich,w.emmerich

  10. Learning Globally Consistent Maps by Relaxation Tom Duckett Stephen Marsland & Jonathan Shapiro

    E-Print Network [OSTI]

    Duckett, Tom

    Learning Globally Consistent Maps by Relaxation #3; Tom Duckett Stephen Marsland & Jonathan Shapiro-70182  Orebro Manchester M13 9PL Sweden England Tom.Duckett@aass.oru.se fmarslans

  11. Near-infrared photodetector consisting of J-aggregating cyanine dye and metal oxide thin films

    E-Print Network [OSTI]

    Osedach, Timothy P.

    We demonstrate a near-infrared photodetector that consists of a thin film of the J-aggregating cyanine dye, U3, and transparent metal-oxide charge transport layers. The high absorption coefficient of the U3 film, combined ...

  12. CFCC working group meeting: Proceedings

    SciTech Connect (OSTI)

    NONE

    1997-12-31T23:59:59.000Z

    This report is a compilation of the vugraphs presented at this meeting. Presentations covered are: CFCC Working Group; Overview of study on applications for advanced ceramics in industries for the future; Design codes and data bases: The CFCC program and its involvement in ASTM, ISO, ASME, and military handbook 17 activities; CFCC Working Group meeting (McDermott Technology); CFCC Working Group meeting (Textron); CFCC program for DMO materials; Developments in PIP-derived CFCCs; Toughened Silcomp (SiC-Si) composites for gas turbine engine applications; CFCC program for CVI materials; Self-lubricating CFCCs for diesel engine applications; Overview of the CFCC program`s supporting technologies task; Life prediction methodologies for CFCC components; Environmental testing of CFCCs in combustion gas environments; High-temperature particle filtration ORNL/DCC CRADA; HSCT CMC combustor; and Case study -- CFCC shroud for industrial gas turbines.

  13. The relationship of parental consistency in discipline to locus of control in preschoolers

    E-Print Network [OSTI]

    Schmidt, Corliss Theresa

    1979-01-01T23:59:59.000Z

    THE RELATIONSHIP OF PARENTAL CONSISTENCY IN DISCIPLINE TO LOCUS OF CONTROL IN PRESCHOOLERS A Thesis by CORLISS THERESA SCHMIDT Submitted to the Graduate College of Texas AIIM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIEI'ICE August 1979 Major Subject: Psychology THE RELATIONSHIP OF PARENTAL CONSISTENCY IN DISCIPLINE TO LOCUS OF CONTROL IN PRESCHOOLERS A Thesis by CORLISS THERESA SCHMIDT Approved as to style and content by: ( a a of Committee...

  14. Pohlen Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroupPerfectenergy InternationalInformationPlacerPlexus SolPohlen Group

  15. Poyry Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroupPerfectenergyInformation toPower andPoyry Group Jump to: navigation,

  16. Paro group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorthOlympiaAnalysis) JumpPalcan sPaquinPark andParo group

  17. Jinglong Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou New Energy Co Ltd Jump to:Jinglong Group Jump to:

  18. Kedco Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou New Energy CoKERAFOLKarlsruheKauaiKedco Group Jump

  19. Humus Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open EnergyInformationHorizonEnergyHubeiHumus Group Jump to:

  20. CEMENT RELATED RESEARCH HYDROGEOCHEMISTRY GROUP

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    CEMENT RELATED RESEARCH HYDROGEOCHEMISTRY GROUP Josep M. Soler Jordi Cama Carles Ayora Ana Trapote.soler@idaea.csic.es #12;NOMECLATURE cement + water = hardened cement paste cement + water + sand = mortar cement + waterC) clinker + gypsum portland cement PORTLAND CEMENT #12;GTS-HPF Core Infiltration Experiment Experimental

  1. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    of Civil Engineering, Uni- versity of Toronto Data Management Groups Web Site http Susanna Choy, B.A.Sc. (Industrial Engineering), M.Eng. (Civil Engineering) Uni- versity of Toronto, P.Eng. Reuben Briggs, B.A.Sc. (Civil Engineering), M.A.Sc. (Civil Engineering) Univer- sity of Toronto, P

  2. Systems Biology Group Decision Making

    E-Print Network [OSTI]

    entities (e.g., molecular, cellular, organism, ecological) #12;OHIO STATE T . H . E UNIVERSITY Systems/analysis of perception, attention, choice, learning, optimality,... #12;OHIO STATE T . H . E UNIVERSITY Group decision making, evolution and ecology Current work: Modeling/analysis of coordinated motion, foraging, choice

  3. FEATURE ARTICLES Group Decision Making

    E-Print Network [OSTI]

    with respect to human groups, which ha\\'e developed a variety of voting pro- cedures to single out one option'iorami commuiiiai- tion. Kevin M. Passino is a professor of electrical and computer aigineering at Tlie Ohio State of observational, experimental and mathematical-model- ing studies. This work has revealed a set of behavioral

  4. Group Motion Editing Taesoo Kwon

    E-Print Network [OSTI]

    Takahashi, Shigeo

    : I.3.7 [Three-Dimensional Graphics and Realism]: Animation--Virtual reality Keywords: Group Motion Editing, Crowd Simulation, Human Motion, Character Animation 1 Introduction Crowd scenes appear frequently in crowd animation make it possible to synthesize convincing animations of virtual crowds by simulating

  5. Policy Groups Winfried E. Kuhnhauser

    E-Print Network [OSTI]

    Kühnhauser, Winfried

    1 Policy Groups Winfried E. Kuhnhauser GMD National Research Center For Information Technology D: Systems that support a multitude of independent security domains in which an individual security policy domains consti- tutes a major problem. While security policies are capable of controlling the applications

  6. Task Group 9 Update (Presentation)

    SciTech Connect (OSTI)

    Bosco, N.

    2014-04-01T23:59:59.000Z

    This presentation is a brief update of IEC TC82 QA Task Force, Group 9. Presented is an outline of the recently submitted New Work Item Proposal (NWIP) for a Comparative Thermal Cycling Test for CPV Modules to Differentiate Thermal Fatigue Durability.

  7. September 8, 2011, HSS/Union Focus Group Work Group Telecom - Work Group Charter

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of EnergyFocus Group HSS/Union Work Group Telecom

  8. September 8, 2011, HSS/Union Focus Group Work Group Telecom - Work Group Guidance

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of EnergyFocus Group HSS/Union Work Group Telecom7-29-11

  9. September 8, 2011, HSS/Union Focus Group Work Group Telecom - Work Group matrix

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of EnergyFocus Group HSS/Union Work Group Telecom7-29-11Rev

  10. ccsd00001636, GEOMETRIC PRESENTATIONS FOR THOMPSON'S GROUPS

    E-Print Network [OSTI]

    ccsd­00001636, version 3 ­ 4 Feb 2005 GEOMETRIC PRESENTATIONS FOR THOMPSON'S GROUPS PATRICK DEHORNOY Abstract. Starting from the observation that Thompson's groups F and V are the geometry groups]. In the case of associativity [6], the geometry group turns out to be Thompson's group F , not a surprise

  11. The Complexity of the Consistency and N-representability Problems for Quantum States

    E-Print Network [OSTI]

    Yi-Kai Liu

    2007-12-18T23:59:59.000Z

    QMA (Quantum Merlin-Arthur) is the quantum analogue of the class NP. There are a few QMA-complete problems, most notably the ``Local Hamiltonian'' problem introduced by Kitaev. In this dissertation we show some new QMA-complete problems. The first one is ``Consistency of Local Density Matrices'': given several density matrices describing different (constant-size) subsets of an n-qubit system, decide whether these are consistent with a single global state. This problem was first suggested by Aharonov. We show that it is QMA-complete, via an oracle reduction from Local Hamiltonian. This uses algorithms for convex optimization with a membership oracle, due to Yudin and Nemirovskii. Next we show that two problems from quantum chemistry, ``Fermionic Local Hamiltonian'' and ``N-representability,'' are QMA-complete. These problems arise in calculating the ground state energies of molecular systems. N-representability is a key component in recently developed numerical methods using the contracted Schrodinger equation. Although these problems have been studied since the 1960's, it is only recently that the theory of quantum computation has allowed us to properly characterize their complexity. Finally, we study some special cases of the Consistency problem, pertaining to 1-dimensional and ``stoquastic'' systems. We also give an alternative proof of a result due to Jaynes: whenever local density matrices are consistent, they are consistent with a Gibbs state.

  12. Doubly self-consistent field theory of grafted polymers under simple shear in steady state

    SciTech Connect (OSTI)

    Suo, Tongchuan; Whitmore, Mark D., E-mail: mark-whitmore@umanitoba.ca [Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada)

    2014-03-21T23:59:59.000Z

    We present a generalization of the numerical self-consistent mean-field theory of polymers to the case of grafted polymers under simple shear. The general theoretical framework is presented, and then applied to three different chain models: rods, Gaussian chains, and finitely extensible nonlinear elastic (FENE) chains. The approach is self-consistent at two levels. First, for any flow field, the polymer density profile and effective potential are calculated self-consistently in a manner similar to the usual self-consistent field theory of polymers, except that the calculation is inherently two-dimensional even for a laterally homogeneous system. Second, through the use of a modified Brinkman equation, the flow field and the polymer profile are made self-consistent with respect to each other. For all chain models, we find that reasonable levels of shear cause the chains to tilt, but it has very little effect on the overall thickness of the polymer layer, causing a small decrease for rods, and an increase of no more than a few percent for the Gaussian and FENE chains. Using the FENE model, we also probe the individual bond lengths, bond correlations, and bond angles along the chains, the effects of the shear on them, and the solvent and bonded stress profiles. We find that the approximations needed within the theory for the Brinkman equation affect the bonded stress, but none of the other quantities.

  13. Glass durability evaluation using product consistency, single-pass flow-through, and vapor hydration tests

    SciTech Connect (OSTI)

    Feng, X.; Hrma, P.; Kim, D. [Pacific Northwest National Lab., Richland, WA (United States)] [and others

    1996-12-31T23:59:59.000Z

    The current approach to assessing chemical durability of waste glasses focuses on a suite of short-term laboratory tests such as dynamic single-pass flow-through (SPFT) tests, static product consistency tests (PCT), and vapor hydration tests. The behavior of the glasses in the three types of tests is quite different, but each test provides insight into the glass corrosion process. The PCT data showed that at constant alumina, silica, and sodium levels the glass durability order for different glass systems is: Boron-series > Boron-Calcium-series > Calcium-series, while the opposite order is observed in SPFT tests. The order for vapor hydration tests is similar to that observed in the PCT tests. The PCT results are consistent with the current understanding of glass structure and are consistent with vapor hydration tests. The SPFT results can be explained using arguments based on solution chemistry.

  14. Statistical dynamics of classical systems: A self-consistent field approach

    SciTech Connect (OSTI)

    Grzetic, Douglas J., E-mail: dgrzetic@uoguelph.ca; Wickham, Robert A., E-mail: rwickham@uoguelph.ca [Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1 (Canada); Shi, An-Chang, E-mail: shi@mcmaster.ca [Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1 (Canada)

    2014-06-28T23:59:59.000Z

    We develop a self-consistent field theory for particle dynamics by extremizing the functional integral representation of a microscopic Langevin equation with respect to the collective fields. Although our approach is general, here we formulate it in the context of polymer dynamics to highlight satisfying formal analogies with equilibrium self-consistent field theory. An exact treatment of the dynamics of a single chain in a mean force field emerges naturally via a functional Smoluchowski equation, while the time-dependent monomer density and mean force field are determined self-consistently. As a simple initial demonstration of the theory, leaving an application to polymer dynamics for future work, we examine the dynamics of trapped interacting Brownian particles. For binary particle mixtures, we observe the kinetics of phase separation.

  15. Parabolic curves in Lie groups

    SciTech Connect (OSTI)

    Pauley, Michael [School of Mathematics and Statistics, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009 (Australia)

    2010-05-15T23:59:59.000Z

    To interpolate a sequence of points in Euclidean space, parabolic splines can be used. These are curves which are piecewise quadratic. To interpolate between points in a (semi-)Riemannian manifold, we could look for curves such that the second covariant derivative of the velocity is zero. We call such curves Jupp and Kent quadratics or JK-quadratics because they are a special case of the cubic curves advocated by Jupp and Kent. When the manifold is a Lie group with bi-invariant metric, we can relate JK-quadratics to null Lie quadratics which arise from another interpolation problem. We solve JK-quadratics in the Lie groups SO(3) and SO(1,2) and in the sphere and hyperbolic plane, by relating them to the differential equation for a quantum harmonic oscillator00.

  16. DIRHB -- a relativistic self-consistent mean-field framework for atomic nuclei

    E-Print Network [OSTI]

    T. Niksic; N. Paar; D. Vretenar; P. Ring

    2014-03-17T23:59:59.000Z

    The DIRHB package consists of three Fortran computer codes for the calculation of the ground-state properties of even-even atomic nuclei using the framework of relativistic self-consistent mean-field models. Each code corresponds to a particular choice of spatial symmetry: the DIRHBS, DIRHBZ and DIRHBT codes are used to calculate nuclei with spherical symmetry, axially symmetric quadrupole deformation, and triaxial quadrupole shapes, respectively. Reflection symmetry is assumed in all three cases. The latest relativistic nuclear energy density functionals are implemented in the codes, thus enabling efficient and accurate calculations over the entire nuclide chart.

  17. Self-Consistent RPA based on a Many-Body Vacuum

    E-Print Network [OSTI]

    Mohsen Jemai; Peter Schuck

    2010-11-23T23:59:59.000Z

    Self-Consistent RPA is extended in a way so that it is compatable with a variational ansatz for the ground state wave function as a fermionic many-body vacuum. Employing the usual equation of motion technique, we arrive at extended RPA equations of the Self Consistent RPA structure. In principle the Pauli principle is, therefore, fully respected. However, the correlation functions entering the RPA matrix can only be obtained from a systematic expansion in powers of some combinations of RPA amplitudes. We demonstrate for a model case that this expansion may converge rapidly.

  18. Temperature Fluctuation and an Expected Limit of Hubble Parameter in the Self-Consistent Model

    E-Print Network [OSTI]

    A. B. Morcos

    2004-12-08T23:59:59.000Z

    The temperature gradient of microwave background radiation (CMBR) is calculated in the Self Consistent Model. An expected values for Hubble parameter have been presented in two different cases. In the first case the temperature is treated as a function of time only, while in the other one the temperature depends on relaxation of isotropy condition in the self-consistent model and the assumption that the universe expands adiabatically. The COBE's or WMAP's fluctuations in temperature of CMBR may be used to predict a value for Hubble parameter.

  19. Schrödinger group and quantum finance

    E-Print Network [OSTI]

    Juan M. Romero; Ulises Lavana; Elio Martínez

    2013-04-18T23:59:59.000Z

    Using the one dimensional free particle symmetries, the quantum finance symmetries are obtained. Namely, it is shown that Black-Scholes equation is invariant under Schr\\"odinger group. In order to do this, the one dimensional free non-relativistic particle and its symmetries are revisited. To get the Black-Scholes equation symmetries, the particle mass is identified as the inverse of square of the volatility. Furthermore, using financial variables, a Schr\\"odinger algebra representation is constructed.

  20. Energy Systems Group Annual Report

    E-Print Network [OSTI]

    Anand, N. K.; Caton, J.; Heffington, W. M.; O'Neal, D. L.; Somasundaram, S.; Turner, W. D.

    1986-01-01T23:59:59.000Z

    in this project. Annual expenditures for energy use in Texas State Agencies in 1984 was over two hundred million dollars. This study has four major tasks. First, the Energy Systems Laboratory is the data collection center for monthly energy data from each... by the Energy Systems Group is improving the efficiency of energy use. Currently, the research focuses on improving energy efficiency in heating and air conditioning equipment, improving thermal efficiency of buildings, implementation of Cogeneration systems...

  1. Pollutant Assessments Group Procedures Manual

    SciTech Connect (OSTI)

    Chavarria, D.E.; Davidson, J.R.; Espegren, M.L.; Kearl, P.M.; Knott, R.R.; Pierce, G.A.; Retolaza, C.D.; Smuin, D.R.; Wilson, M.J.; Witt, D.A. (Oak Ridge National Lab., TN (USA)); Conklin, N.G.; Egidi, P.V.; Ertel, D.B.; Foster, D.S.; Krall, B.J.; Meredith, R.L.; Rice, J.A.; Roemer, E.K. (Oak Ridge Associated Universities, Inc., TN (USA))

    1991-02-01T23:59:59.000Z

    This procedures manual combines the existing procedures for radiological and chemical assessment of hazardous wastes used by the Pollutant Assessments Group at the time of manuscript completion (October 1, 1990). These procedures will be revised in an ongoing process to incorporate new developments in hazardous waste assessment technology and changes in administrative policy and support procedures. Format inconsistencies will be corrected in subsequent revisions of individual procedures.

  2. Mechanical Engineering & Design Group (AES-MED)

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

    Techniques Sectors Directory Status and Schedule Safety and Training Divisions APS Engineering Support Division AES Groups Accelerator Systems Division ASD Groups X-ray Science...

  3. Nick Wright Named Advanced Technologies Group Lead

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

    Nick Wright Named Advanced Technologies Group Lead Nick Wright Named Advanced Technologies Group Lead February 4, 2013 Nick Nick Wright has been named head of the National Energy...

  4. Federal Utility Partnership Working Group Meeting Chairman's...

    Office of Environmental Management (EM)

    Meeting Chairman's Corner Federal Utility Partnership Working Group Meeting Chairman's Corner Presentation-given at the Fall 2012 Federal Utility Partnership Working Group (FUPWG)...

  5. Federal Utility Partnership Working Group Meeting: Washington...

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

    Federal Utility Partnership Working Group Meeting: Washington Update fupwgspring12unruh.pdf More Documents & Publications Federal Utility Partnership Working Group Meeting:...

  6. Federal Utility Partnership Working Group Participants | Department...

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

    Participants Federal Utility Partnership Working Group Participants The following Federal agencies have participated in the Federal Utility Partnership Working Group or engaged in...

  7. Federal Utility Partnership Working Group Seminar: Chairman's...

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

    Federal Utility Partnership Working Group Seminar: Chairman's Corner Federal Utility Partnership Working Group Seminar: Chairman's Corner Presentation covers the Federal Utility...

  8. Federal Utility Partnership Working Group Meeting: Washington...

    Energy Savers [EERE]

    Federal Utility Partnership Working Group Meeting: Washington Update Federal Utility Partnership Working Group Meeting: Washington Update Presentation-given at the Fall 2012...

  9. NERSC seeks Computational Systems Group Lead

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

    seeks Computational Systems Group Lead NERSC seeks Computational Systems Group Lead January 6, 2011 by Katie Antypas Note: This position is now closed. The Computational Systems...

  10. TEC Working Group Topic Groups Security | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2Uranium Transferon the PassingRouting TEC Working Group Topic

  11. TEC Working Group Topic Groups Tribal | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2Uranium Transferon the PassingRouting TEC Working Group TopicDepartmentTribal

  12. Moltech Power Systems Group MPS Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreen PolymersModular Energy DevicesMola(EC-LEDS)

  13. Computer Graphics International 2004 (CGI), June 1619, Crete, Greece. IEEE Computer Society Press. Consistent Normal Orientation for Polygonal Meshes

    E-Print Network [OSTI]

    Zachmann, Gabriel

    . Consistent Normal Orientation for Polygonal Meshes Pavel Borodin Gabriel Zachmann Reinhard Klein Institute

  14. Full paper / Mmoire Self-assembly of hybrid solids consisting of 2D supramolecular

    E-Print Network [OSTI]

    Paik Suh, Myunghyun

    Full paper / Mémoire Self-assembly of hybrid solids consisting of 2D supramolecular networks- selected molecular building blocks may yield designed supramolecular structure in one-pot process. We have been interested in construction of the materials, where two species with different properties coexist

  15. Neonatal Hearing Screening Test Consistent with loss in one or both ears within frequency range

    E-Print Network [OSTI]

    Levin, Judith G.

    Neonatal Hearing Screening Test Consistent with loss in one or both ears within frequency range: Gene specific mutation screening If familial and nonsyndromal is suspected, consider: GJB2 testing GJB6 testing CMV testing Environmental etiologies Gene specific screening may be warranted If nonsyndromal

  16. Training Reciprocity Achieves Greater Consistency, Saves Time and Money for Idaho, Other DOE Sites

    Broader source: Energy.gov [DOE]

    IDAHO FALLS, Idaho – Contracting companies supporting EM’s cleanup program at the Idaho site volunteered to be among the first to use a new DOE training reciprocity program designed to bring more consistency to health and safety training across the complex, reduce redundancy and realize savings and other efficiencies.

  17. Nuclear Databases: National Resource Nuclear databases consists of carefully organized scientific

    E-Print Network [OSTI]

    Ohta, Shigemi

    Nuclear Databases: National Resource Nuclear databases consists of carefully organized scientific information that has been gathered over 50 years of low-energy nuclear physics research worldwide. These powerful databases have enormous value and they represent a genuine national resource. Six core nuclear

  18. Consistency of the posterior distribution and MLE for piecewise linear regression

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Consistency of the posterior distribution and MLE for piecewise linear regression Tristan Launay1 and that of the Bayes estimator for a two-phase piecewise linear regression mdoel where the break-point is unknown and be the unknown regression coefficient of the non-zero phase. The observations X1:n = (X1, . . . , Xn) depend

  19. Hamming embedding and weak geometric consistency for large scale image search

    E-Print Network [OSTI]

    Verbeek, Jakob

    Hamming embedding and weak geometric consistency for large scale image search Herve Jegou, Matthijs improves recent methods for large scale image search. State-of-the-art methods build on the bag large datasets. Exper- iments performed on a dataset of one million of images show a signifi- cant

  20. Collective spin modes in monodimensional magnonic crystals consisting of dipolarly coupled nanowires

    E-Print Network [OSTI]

    Adeyeye, Adekunle

    encompassing several Brillouin zones relative to the artificial spatial periodicity. This experimental evidence determined by the artificial periodicity. Alternating nanowires of polycrystalline Permalloy Ni80Fe20 exposure wavelength followed by a lift-off technique.4 Sample consists of nanowires of widths w1=350 nm

  1. temperature differences exist between the day and night faces of the planet, consistent with a model

    E-Print Network [OSTI]

    Carpick, Robert W.

    with a model in which very little horizontal energy transport occurs in the planetary atmosphere. Furthermoretemperature differences exist between the day and night faces of the planet, consistent. 626, 523 (2005). 3. There is no official terminology for planets that orbit close to their parent

  2. Consistent off-shell $?N N$ vertex and nucleon self-energy

    E-Print Network [OSTI]

    S. Kondratyuk; O. Scholten

    1998-11-05T23:59:59.000Z

    We present a consistent calculation of half-off-shell form factors in the pion-nucleon vertex and the nucleon self-energy. Numerical results are presented. Near the on-shell point the pion-nucleon vertex is dominated by the pseudovector coupling, while at large nucleon invariant masses we find a sizable pseudoscalar admixture.

  3. Sufficient Criteria for Consistent Behavior Modeling with Refined Activity Diagrams: Long Version

    E-Print Network [OSTI]

    Wichmann, Felix

    ,taentzer}@mathematik.uni-marburg.de 3 Siemens AG, Corporate Technology, Germany, katharina.mehner@siemens.com Abstract. In use case on the theory of graph transformation and paves the ground for a consistency analysis of the required system by a tool for graph transformation. 1 Introduction Requirements engineering is the process of gathering

  4. Estimating GRACE monthly water storage change consistent with hydrology by assimilating hydrological

    E-Print Network [OSTI]

    Stuttgart, Universität

    Estimating GRACE monthly water storage change consistent with hydrology by assimilating hydrological information B. Devaraju, N. Sneeuw Institute of Geodesy, Universit¨at Stuttgart, Germany estimates of mass changes with observed hydrological data, which is available for 20% of the land area

  5. A self-consistent solution in affine space with scalar field

    E-Print Network [OSTI]

    V. Dorofeev

    2006-03-29T23:59:59.000Z

    Conformal connection of scalar field is shown to produce possible non-metricity in affine connection spaces. In case of self-consistent solution the non-metricity is a correction to background Riemannian structure with respect to gravitational constant and its magnitude may be essential in the early Universe.

  6. Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies

    E-Print Network [OSTI]

    Pan, Ming

    Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies and feedback of land surface and atmospheric processes over large space and time scales. Remote sensing-based variables including soil moisture (from AMSR-E), surface heat fluxes (from MODIS) and precipitation rates

  7. New Loops! MiTeGen* 50MicroMountsTM consist of a thin microfabricated

    E-Print Network [OSTI]

    Meagher, Mary

    New Loops! MiTeGen* 50µMicroMountsTM consist of a thin microfabricated polyimide film attached to a solid non-magnetic stainless steel pin. The film is polyimide, which is used in Kapton® tape and is employed for X- ray transparent windows on X-ray beam lines. The film is curved by wrapping polyimide film

  8. A quick and efficient method for consistent initialization of battery models

    E-Print Network [OSTI]

    Subramanian, Venkat

    criterion on the other end that can ulti- mately satisfy all the required conditions in a battery unitA quick and efficient method for consistent initialization of battery models Vijayasekaran 2007 Available online 21 April 2007 Abstract Secondary batteries are usually modeled as a system

  9. Abstract--Researchers have hypothesized that animal locomotory patterns seen are consistent with the resonant

    E-Print Network [OSTI]

    Krovi, Venkat

    -645-3875). showed that humans, and by extension all animals, maintain resonance during walking and running [1, 2Abstract-- Researchers have hypothesized that animal locomotory patterns seen are consistent employed virtual prototyping with a capable musculoskeletal simulation model to study the same hypothesis

  10. Fourier grid Hamiltonian multiconfigurational self-consistent-field: A method to calculate multidimensional hydrogen vibrational

    E-Print Network [OSTI]

    Hammes-Schiffer, Sharon

    Fourier grid Hamiltonian multiconfigurational self-consistent-field: A method to calculate Received 10 May 2000; accepted 28 June 2000 The Fourier Grid Hamiltonian Multiconfigurational Self that are products of one-dimensional wavefunctions, with a Fourier grid method that represents the one

  11. 1. THE RADIATION BELTS The outer zone radiation belts consist of energetic elec-

    E-Print Network [OSTI]

    Elkington, Scot R.

    1. THE RADIATION BELTS The outer zone radiation belts consist of energetic elec- trons trapped in the geomagnetic field. The dynamics of the belts are dictated by the global and local electric and mag- netic electrons in the outer zone and electric and magnetic field variations occurring on ULF time scales

  12. CSPs and complexity An instance of the constraint satisfaction problem (CSP) consists of a set of

    E-Print Network [OSTI]

    Zhao, Yuxiao

    CSPs and complexity An instance of the constraint satisfaction problem (CSP) consists of a set to the variables in a way so that all constraints are (simultaneously) satisfied. The general CSP is NP-complete. However, when the CSP is restricted to a fixed constraint language (a set of allowed constraint

  13. (Smart) Look-Ahead Arc Consistency and the Pursuit of CSP Tractability

    E-Print Network [OSTI]

    Dalmau, Victor

    (Smart) Look-Ahead Arc Consistency and the Pursuit of CSP Tractability Hubie Chen 1 and V#19. The constraint satisfaction problem (CSP) can be formu- lated as the problem of deciding, given a pair (A; B) of relational struc- tures, whether or not there is a homomorphism from A to B. Although the CSP is in general

  14. A Generalization of Generalized Arc Consistency: From Constraint Satisfaction to Constraint-Based Inference

    E-Print Network [OSTI]

    Mackworth, Alan K.

    -binary classic con- straint satisfaction problems (CSPs). Based on the Semiring CSP and Valued CSP frameworks CSP, probabilistic CSP, max CSP, and weighted CSP. This extension is based on an idempotent satisfaction problem (CSP), local consistency can be characterized as deriving new constraints based on local

  15. Changing System Interfaces Consistently: a New Refinement Strategy for CSP B

    E-Print Network [OSTI]

    Doran, Simon J.

    Changing System Interfaces Consistently: a New Refinement Strategy for CSP B Steve Schneider refinement in the context of CSP B. Our motivation to include this notion of refinement within the CSP B to change the events of a CSP process and the B machines when refining a system. Notions of refinement based

  16. Hierarchy of consistent n-component Cahn-Hilliard systems Franck Boyer

    E-Print Network [OSTI]

    Boyer, Edmond

    elsewhere. (1.2) 1 hal-00933674,version1-20Jan2014 #12;2 F. Boyer, S. Minjeaud Those assumptions implyHierarchy of consistent n-component Cahn-Hilliard systems Franck Boyer Aix Marseille Universit´e, CNRS, Centrale Marseille, I2M, UMR 7373, 13453 Marseille, France franck.boyer@univ-amu.fr Sebastian

  17. Phytoplankton consists of one-celled marine and freshwater microalgae and other plant-like organisms.

    E-Print Network [OSTI]

    Florida, University of

    , taking up carbon dioxide and nutrients from the water and using light as an energy source. The microalgaePhytoplankton consists of one-celled marine and freshwater microalgae and other plant microalgae species (Hoff and Snell, 2008). Species Temperature (°C) Light (Lux) Salinity (ppt ­ ) Chaetoceros

  18. UNSUPERVISED MINING OF AUDIOVISUALLY CONSISTENT SEGMENTS IN VIDEOS WITH APPLICATION TO STRUCTURE ANALYSIS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    UNSUPERVISED MINING OF AUDIOVISUALLY CONSISTENT SEGMENTS IN VIDEOS WITH APPLICATION TO STRUCTURE technique is proposed to discover repeating video segments exhibiting audio and visual con- sistency accurate detection of the underlying event throughout the video. Event min- ing is applied to unsupervised

  19. to 150 GPa, consistent with the modulus values of large SWNT bundles (22). Al-

    E-Print Network [OSTI]

    Cottet, Audrey

    to 150 GPa, consistent with the modulus values of large SWNT bundles (22). Al- though an individual to provide the optimum conditions for nanotube strand formation. The gas flow carried the strands down), assuming that the sample volume is constant, where D0 and Df are the original diameter and the real

  20. A CONSISTENT MODELLING METHODOLOGY FOR SECONDARY1 SETTLING TANKS: A RELIABLE NUMERICAL METHOD2

    E-Print Network [OSTI]

    Bürger, Raimund

    relations for hindered settling, compression and dispersion can be used within the model, allowing the user, continuous sedimentation, secondary clarifier, simulation5 model, partial differential equation6 NomenclatureA CONSISTENT MODELLING METHODOLOGY FOR SECONDARY1 SETTLING TANKS: A RELIABLE NUMERICAL METHOD2

  1. A consistent modelling methodology for secondary settling tanks: a reliable numerical method

    E-Print Network [OSTI]

    Bürger, Raimund

    accounting for sediment compressibility, and a dispersion term for turbulence. In addition, the solutionA consistent modelling methodology for secondary settling tanks: a reliable numerical method modelling methodology for secondary settling tanks (SSTs) leads to a partial differential equation (PDE

  2. A more consistent method for extracting and amplifying DNA from bee wings

    E-Print Network [OSTI]

    A more consistent method for extracting and amplifying DNA from bee wings Elaine M. GOULD, Michelle for genotyping certain behavioural traits required for breeding. One method is to use wing clippings. However reaction (PCR) amplification. Here, we describe an improved method for extracting DNA from bee wings using

  3. The Definition of Double Commutators and Consistency in Free Field Theory

    E-Print Network [OSTI]

    J. M. Pawlowski

    1996-10-09T23:59:59.000Z

    Within the framework of generalized functions a general consistent definition of double commutators is given. This definition respects the Jacobi identity even if the regularization is removed. The double commutator of fermionic currents is calculated in this limit. We show that BJL--type prescriptions and point--splitting prescriptions for calculating double commutators fail to give correct results in free field theory.

  4. On a time consistency concept in risk averse multi-stage stochastic ...

    E-Print Network [OSTI]

    2008-12-11T23:59:59.000Z

    That is, our decisions should be a function of the history of the data process available at the time ... ering the case with finite number of scenarios will allow us to avoid some technical complications ..... (as well as (3.8)) is not time consistent.

  5. The CRAC channel consists of a tetramer formed by Stim-induced dimerization of Orai dimers

    E-Print Network [OSTI]

    Parker, Ian

    LETTERS The CRAC channel consists of a tetramer formed by Stim-induced dimerization of Orai dimers terminus of Stim thus induces Orai dimers to dimerize, forming tetramers that constitute the Ca21-treated cells14 , whereas functional measurements of expressed tandem Orai multimers indicate a tetramer

  6. SU-E-J-29: Audiovisual Biofeedback Improves Tumor Motion Consistency for Lung Cancer Patients

    SciTech Connect (OSTI)

    Lee, D; Pollock, S; Makhija, K; Keall, P [The University of Sydney, Camperdown, NSW (Australia); Greer, P [The University of Newcastle, Newcastle, NSW (Australia); Calvary Mater Newcastle Hospital, Newcastle, NSW (Australia); Arm, J; Hunter, P [Calvary Mater Newcastle Hospital, Newcastle, NSW (Australia); Kim, T [The University of Sydney, Camperdown, NSW (Australia); University of Virginia Health System, Charlottesville, VA (United States)

    2014-06-01T23:59:59.000Z

    Purpose: To investigate whether the breathing-guidance system: audiovisual (AV) biofeedback improves tumor motion consistency for lung cancer patients. This will minimize respiratory-induced tumor motion variations across cancer imaging and radiotherapy procedues. This is the first study to investigate the impact of respiratory guidance on tumor motion. Methods: Tumor motion consistency was investigated with five lung cancer patients (age: 55 to 64), who underwent a training session to get familiarized with AV biofeedback, followed by two MRI sessions across different dates (pre and mid treatment). During the training session in a CT room, two patient specific breathing patterns were obtained before (Breathing-Pattern-1) and after (Breathing-Pattern-2) training with AV biofeedback. In each MRI session, four MRI scans were performed to obtain 2D coronal and sagittal image datasets in free breathing (FB), and with AV biofeedback utilizing Breathing-Pattern-2. Image pixel values of 2D images after the normalization of 2D images per dataset and Gaussian filter per image were used to extract tumor motion using image pixel values. The tumor motion consistency of the superior-inferior (SI) direction was evaluated in terms of an average tumor motion range and period. Results: Audiovisual biofeedback improved tumor motion consistency by 60% (p value = 0.019) from 1.0±0.6 mm (FB) to 0.4±0.4 mm (AV) in SI motion range, and by 86% (p value < 0.001) from 0.7±0.6 s (FB) to 0.1±0.2 s (AV) in period. Conclusion: This study demonstrated that audiovisual biofeedback improves both breathing pattern and tumor motion consistency for lung cancer patients. These results suggest that AV biofeedback has the potential for facilitating reproducible tumor motion towards achieving more accurate medical imaging and radiation therapy procedures.

  7. Energetix Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJump to:Emminol Jump to:Energ tica Campos de CimaEnergetix Group

  8. Ensus Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJump to:Emminol JumpEnergyEnerleyEnglehard/ICCEnoliaEnsus Group

  9. Ferrari Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiencyInformationFengningFerrari Group

  10. Westly Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED JumpHills, NewWestbrook,WestfieldOhio: EnergyWestly Group Jump

  11. Samaras Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to:RoscommonSBYSalton Sea Geothermal Area Jump to:SamSamaras Group

  12. Zeppini Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 Wind Projectsource History ViewZAP JumpZenergyZeppini Group

  13. Ramky Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with form History Facebook iconQuito,Jump to:Radiant ElectricRamky Group Jump to:

  14. Rowan Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with form HistoryRistma AG Jump to: navigation,Rolls RoyceRosaRowan Group Jump

  15. Ostwind Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: Energy Resources Jump to:Ostwind Group Jump

  16. Lucas Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOf KilaueaInformation Other4Q07) WindLow VoltageGroup Jump to:

  17. David Turner! User Services Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration wouldDECOMPOSITION OFSupplementalC. L. MartinGraduatesUser Services Group

  18. Mouratoglou Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreenMoon LakeMountain Electric Coop,

  19. ESV Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE FacilityDimondale,South, NewDyerTier2 Submit SoftwareEPBSinosphereESV Group

  20. Noribachi Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri: Energy Resources Jump to:Nigeria:LLCNon-TectonicNordexNoribachi Group

  1. Tecate Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <Maintained By FaultSunpodsSweetwaterTMATalbotTaunton,Tecate Group Jump

  2. Junqueira Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou New Energy Co LtdJinzhouJoeSolar,Junco NovoJunqueira

  3. Klebl Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou New EnergyKenosistecKilara PowerKiotoKlasing

  4. Sova Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with formSoutheastern IL Elec Coop, IncSouthwestern Electric PowerSova Group Jump

  5. Tongwei Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin Baxin Hydropower Station Jump to:TiogaTongdao YaolaitanTongwei Group

  6. Altira Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat Place: Wayne,EnergyInfrastructureAltira Group LLC Jump to:Altira

  7. Citizenre Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia:PowerCER.png El CER esDataset CountryChoosEV JumpCircleCitizenre Group

  8. BOC Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions Inc JumpIM 2011-003 Jump to: Jump to:ManagementBOC Group Jump

  9. Heolo Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open Energy InformationHebeiProgram JumpHennecke GmbH JumpHeolo

  10. Elecnor Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision| Open JumpEcologyEl DoradoEldora-NewElecnor Group

  11. On subgroups of R. Thompson's group F and other diagram groups

    E-Print Network [OSTI]

    Sapir, Mark

    On subgroups of R. Thompson's group F and other diagram groups V. S. Guba, M. V. Sapir Abstract groups including the famous R. Thompson group F (it corresponds to the simplest set of relations f x = x of a diagram group is abelian, every abelian subgroup is free, but even the Thompson group contains solvable

  12. JSAC SPECIAL ISSUE ON NETWORK SUPPORT FOR GROUP COMMUNICATION 1 Scalable Secure Group Communication over IP

    E-Print Network [OSTI]

    Banerjee, Suman

    JSAC SPECIAL ISSUE ON NETWORK SUPPORT FOR GROUP COMMUNICATION 1 Scalable Secure Group Communication our scheme is completely end­host based, it can be used to implement group security over IP multicast­enabled untrusted, insecure networks. A. Group Keys and Re­keying Groups Many secure group communication systems [12

  13. OBSTRUCTIONS FOR SUBGROUPS OF THOMPSON'S GROUP V

    E-Print Network [OSTI]

    Röver, Claas

    OBSTRUCTIONS FOR SUBGROUPS OF THOMPSON'S GROUP V JOS'E BURILLO, SEAN CLEARY, AND CLAAS E. R"OVER Abstract.Thompson's group V has a rich for a given group to be a subgroup of V . Thompson constructed a finitely presented group now known as V

  14. Transport enhancement and suppression in turbulent magnetic reconnection: A self-consistent turbulence model

    SciTech Connect (OSTI)

    Yokoi, N. [Institute of Industrial Science, University of Tokyo, Tokyo (Japan)] [Institute of Industrial Science, University of Tokyo, Tokyo (Japan); Higashimori, K.; Hoshino, M. [Department of Earth and Planetary Science, University of Tokyo, Tokyo (Japan)] [Department of Earth and Planetary Science, University of Tokyo, Tokyo (Japan)

    2013-12-15T23:59:59.000Z

    Through the enhancement of transport, turbulence is expected to contribute to the fast reconnection. However, the effects of turbulence are not so straightforward. In addition to the enhancement of transport, turbulence under some environment shows effects that suppress the transport. In the presence of turbulent cross helicity, such dynamic balance between the transport enhancement and suppression occurs. As this result of dynamic balance, the region of effective enhanced magnetic diffusivity is confined to a narrow region, leading to the fast reconnection. In order to confirm this idea, a self-consistent turbulence model for the magnetic reconnection is proposed. With the aid of numerical simulations where turbulence effects are incorporated in a consistent manner through the turbulence model, the dynamic balance in the turbulence magnetic reconnection is confirmed.

  15. Consistent Modified Gravity Analysis of Anisotropic Galaxy Clustering Using BOSS DR11

    E-Print Network [OSTI]

    Song, Yong-Seon; Linder, Eric; Koyama, Kazuya; Sabiu, Cristiano G; Zhao, Gong-Bo; Bernardeau, Francis; Nishimichi, Takahiro; Okumura, Teppei

    2015-01-01T23:59:59.000Z

    We analyse the clustering of cosmic large scale structure using a consistent modified gravity perturbation theory, accounting for anisotropic effects along and transverse to the line of sight. The growth factor has a particular scale dependence in f(R) gravity and we fit for the shape parameter f_{R0} simultaneously with the distance and the large scale (general relativity) limit of the growth function. Using more than 690,000 galaxies in the Baryon Oscillation Spectroscopy Survey Data Release 11, we find no evidence for extra scale dependence, with the 95\\% confidence upper limit |f_{R0}| <8 \\times 10^{-4}. Future clustering data, such as from the Dark Energy Spectroscopic Instrument, can use this consistent methodology to impose tighter constraints.

  16. Nonparametric test of consistency between cosmological models and multiband CMB measurements

    E-Print Network [OSTI]

    Aghamousa, Amir

    2015-01-01T23:59:59.000Z

    We present a novel approach to test the consistency of the cosmological models with multiband CMB data using a nonparametric approach. In our analysis we calibrate the REACT (Risk Estimation and Adaptation after Coordinate Transformation) confidence levels associated with distances in function space (confidence distances) based on the Monte Carlo simulations in order to test the consistency of an assumed cosmological model with observation. To show the applicability of our algorithm, we confront Planck 2013 temperature data with concordance model of cosmology considering two different Planck spectra combination. In order to have an accurate quantitative statistical measure to compare between the data and the theoretical expectations, we calibrate REACT confidence distances and perform a bias control using many realizations of the data. Our results in this work using Planck 2013 temperature data put the best fit $\\Lambda$CDM model at $95\\% (\\sim 2\\sigma)$ confidence distance from the center of the nonparametri...

  17. Self-Consistent Model of Roton Cluster Excitations in Liquid Helium II

    E-Print Network [OSTI]

    V. I. Kruglov; M. J. Collett

    2006-05-18T23:59:59.000Z

    We have proposed a model of roton cluster excitations in liquid helium~II based on a Schr\\"odinger-type equation with a self-consistent confining potential. We have derived an equation for the number of atoms in roton excitations, which can be treated as quantum $3{\\rm D}$ solitons, depending on vibrational quantum numbers. It is shown that the smallest roton cluster is in the symmetric vibrational quantum state and consists of 13 helium atoms. We have also used a modified Born approximation to calculate the $s$-scattering length for helium atoms. This allows us to calculate all parameters of Landau's roton excitation spectrum, in agreement to high accuracy with experimental measurements from neutron scattering.

  18. Comparison of Self-Consistent Skyrme and Gogny Calculations for Light Hg Isotopes

    E-Print Network [OSTI]

    M. Warda; A. Staszczak; L. Próchniak

    2011-07-05T23:59:59.000Z

    The ground-state properties of neutron-deficient Hg isotopes have been investigated by the constrained self-consistent Hartree-Fock-Bogoliubov approach with the Skyrme and Gogny effective forces. In the case of the Skyrme interaction we h ave also applied the Hartree-Fock+BCS model with the state-dependent $\\delta$-pairing interaction. Potential energy surfaces and pairing properties have been compared for the both types of forces.

  19. Statefinder diagnostic and stability of modified gravity consistent with holographic and new agegraphic dark energy

    E-Print Network [OSTI]

    M. R. Setare; Mubasher Jamil

    2010-08-27T23:59:59.000Z

    Recently one of us derived the action of modified gravity consistent with the holographic and new-agegraphic dark energy. In this paper, we investigate the stability of the Lagrangians of the modified gravity as discussed in [M. R. Setare, Int. J. Mod. Phys. D 17 (2008) 2219; M. R. Setare, Astrophys. Space Sci. 326 (2010) 27]. We also calculate the statefinder parameters which classify our dark energy model.

  20. New wind input term consistent with experimental, theoretical and numerical considerations

    E-Print Network [OSTI]

    V. E. Zakharov; D. Resio; A. Pushkarev

    2012-12-05T23:59:59.000Z

    We offer a new method for determining the wind source term for energy and momentum fluxes transfer from the atmosphere to the wind-driven sea. This new source-term formulation is based on extensive analysis of experimental data collected at different sites around the world. It is shown that this new wind source term to be consistent both with numerical solution of exact equation for resonant four-wave interactions and available experimental data.

  1. Third minima in thorium and uranium isotopes in a self-consistent theory

    E-Print Network [OSTI]

    J. D. McDonnell; W. Nazarewicz; J. A. Sheikh

    2013-05-23T23:59:59.000Z

    Background: Deep third minima have been predicted in some non-self-consistent models to impact fission pathways of thorium and uranium isotopes. These predictions have guided the interpretation of resonances seen experimentally. On the other hand, self-consistent calculations consistently predict very shallow potential-energy surfaces in the third minimum region. Purpose: We investigate the interpretation of third-minimum configurations in terms of dimolecular states. We study the isentropic potential-energy surfaces of selected even-even thorium and uranium isotopes at several excitation energies. In order to understand the driving effects behind the presence of third minima, we study the interplay between pairing and shell effects. Methods: We use the finite-temperature superfluid nuclear density functional theory. We consider a traditional functional, SkM*, and a recent functional, UNEDF1, optimized for fission studies. Results: We predict very shallow or no third minima in the potential-energy surfaces of 232Th and 232U. In Th and U isotopes with N=136 and 138, the third minima are deeper. We show that the reflection-asymmetric configurations around the third minimum can be associated with dimolecular states involving the spherical doubly magic 132Sn and a lighter deformed Zr or Mo fragment. The potential-energy surfaces for 228,232Th and 232U at several excitation energies are presented. Conclusions: We show that the neutron shell effect that governs the existence of the dimolecular states around the third minimum is consistent with the spherical-to-deformed shape transition in the Zr and Mo isotopes around N=58. We demonstrate that the thermal reduction of pairing and enhancement of shell effects at small excitation energies help to develop deeper third minima. At large excitation energies, shell effects are washed out and third minima disappear altogether.

  2. Consistency of lattice definitions of U(1) flux in Abelian projected SU(2) gauge theory

    E-Print Network [OSTI]

    Takayuki Matsuki; Richard W. Haymaker

    2003-10-07T23:59:59.000Z

    We reexamine the dual Abrikosov vortex under the requirement that the lattice averages of the fields satisfy exact Maxwell equations [ME]. The electric ME accounts for the total flux and the magnetic ME determines the shape of the confining string. This leads to unique and consistent definitions of flux and electric and magnetic currents at finite lattice spacing. The resulting modification of the standard DeGrand-Toussaint construction gives a magnetic current comprised of smeared monopoles.

  3. Two-particle irreducible effective actions versus resummation: analytic properties and self-consistency

    E-Print Network [OSTI]

    Michael Brown; Ian Whittingham

    2015-03-30T23:59:59.000Z

    Approximations based on two-particle irreducible (2PI) effective actions (also known as $\\Phi$-derivable, Cornwall-Jackiw-Tomboulis or Luttinger-Ward functionals depending on context) have been widely used in condensed matter and non-equilibrium quantum/statistical field theory because this formalism gives a robust, self-consistent, non-perturbative and systematically improvable approach which avoids problems with secular time evolution. The strengths of 2PI approximations are often described in terms of a selective resummation of Feynman diagrams to infinite order. However, the Feynman diagram series is asymptotic and summation is at best a dangerous procedure. Here we show that, at least in the context of a toy model where exact results are available, the true strength of 2PI approximations derives from their self-consistency rather than any resummation. This self-consistency allows truncated 2PI approximations to capture the branch points of physical amplitudes where adjustments of coupling constants can trigger an instability of the vacuum. This, in effect, turns Dyson's argument for the failure of perturbation theory on its head. As a result we find that 2PI approximations perform better than Pad\\'e approximation, but not as well as Borel summation where the latter is well-defined. Finally, we introduce a hybrid 2PI-Pad\\'e method.

  4. Heisenberg groups and noncommutative fluxes

    SciTech Connect (OSTI)

    Freed, Daniel S. [Department of Mathematics, University of Texas at Austin, TX 78712 (United States)]. E-mail: dafr@math.utexas.edu; Moore, Gregory W. [Department of Physics, Rutgers University, Piscataway, NJ 08854-8019 (United States); Segal, Graeme [All Souls College, Oxford (United Kingdom)

    2007-01-15T23:59:59.000Z

    We develop a group-theoretical approach to the formulation of generalized abelian gauge theories, such as those appearing in string theory and M-theory. We explore several applications of this approach. First, we show that there is an uncertainty relation which obstructs simultaneous measurement of electric and magnetic flux when torsion fluxes are included. Next, we show how to define the Hilbert space of a self-dual field. The Hilbert space is Z{sub 2}-graded and we show that, in general, self-dual theories (including the RR fields of string theory) have fermionic sectors. We indicate how rational conformal field theories associated to the two-dimensional Gaussian model generalize to (4k+2)-dimensional conformal field theories. When our ideas are applied to the RR fields of string theory we learn that it is impossible to measure the K-theory class of a RR field. Only the reduction modulo torsion can be measured.

  5. Renormalization group aspects of graphene

    E-Print Network [OSTI]

    Maria A. H. Vozmediano

    2010-10-25T23:59:59.000Z

    Graphene is a two dimensional crystal of carbon atoms with fascinating electronic and morphological properties. The low energy excitations of the neutral, clean system are described by a massless Dirac Hamiltonian in (2+1) dimensions which also captures the main electronic and transport properties. A renormalization group analysis sheds light on the success of the free model: due to the special form of the Fermi surface which reduces to two single points in momentum space, short range interactions are irrelevant and only gauge interactions like long range Coulomb or effective disorder can play a role in the low energy physics. We review these features and discuss briefly other aspects related to disorder and to the bilayer material along the same lines.

  6. Diffeomorphisms in group field theories

    SciTech Connect (OSTI)

    Baratin, Aristide [Triangle de la Physique, CPHT Ecole Polytechnique, IPhT Saclay, LPT Orsay and Laboratoire de Physique Theorique, CNRS UMR 8627, Universite Paris XI, F-91405 Orsay Cedex (France); Girelli, Florian [School of Physics, University of Sydney, Sydney, New South Wales 2006 (Australia); Oriti, Daniele [Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Am Muehlenberg 1, 14467 Golm (Germany)

    2011-05-15T23:59:59.000Z

    We study the issue of diffeomorphism symmetry in group field theories (GFT), using the noncommutative metric representation introduced by A. Baratin and D. Oriti [Phys. Rev. Lett. 105, 221302 (2010).]. In the colored Boulatov model for 3d gravity, we identify a field (quantum) symmetry which ties together the vertex translation invariance of discrete gravity, the flatness constraint of canonical quantum gravity, and the topological (coarse-graining) identities for the 6j symbols. We also show how, for the GFT graphs dual to manifolds, the invariance of the Feynman amplitudes encodes the discrete residual action of diffeomorphisms in simplicial gravity path integrals. We extend the results to GFT models for higher-dimensional BF theories and discuss various insights that they provide on the GFT formalism itself.

  7. A renormalization group decoding algorithm for topological quantum codes

    E-Print Network [OSTI]

    Guillaume Duclos-Cianci; David Poulin

    2010-06-07T23:59:59.000Z

    Topological quantum error-correcting codes are defined by geometrically local checks on a two-dimensional lattice of quantum bits (qubits), making them particularly well suited for fault-tolerant quantum information processing. Here, we present a decoding algorithm for topological codes that is faster than previously known algorithms and applies to a wider class of topological codes. Our algorithm makes use of two methods inspired from statistical physics: renormalization groups and mean-field approximations. First, the topological code is approximated by a concatenated block code that can be efficiently decoded. To improve this approximation, additional consistency conditions are imposed between the blocks, and are solved by a belief propagation algorithm.

  8. Tennessee Valley and Eastern Kentucky Wind Working Group

    SciTech Connect (OSTI)

    Katie Stokes

    2012-05-03T23:59:59.000Z

    In December 2009, the Southern Alliance for Clean Energy (SACE), through a partnership with the Appalachian Regional Commission, EKPC, Kentucky's Department for Energy Development and Independence, SACE, Tennessee's Department of Environment and Conservation, and TVA, and through a contract with the Department of Energy, established the Tennessee Valley and Eastern Kentucky Wind Working Group (TVEKWWG). TVEKWWG consists of a strong network of people and organizations. Working together, they provide information to various organizations and stakeholders regarding the responsible development of wind power in the state. Members include representatives from utility interests, state and federal agencies, economic development organizations, non-government organizations, local decision makers, educational institutions, and wind industry representatives. The working group is facilitated by the Southern Alliance for Clean Energy. TVEKWWG supports the Department of Energy by helping educate and inform key stakeholders about wind energy in the state of Tennessee.

  9. On the Teichmuller tower of mapping class groups Allen Hatcher, Pierre Lochak and Leila Schneps

    E-Print Network [OSTI]

    Schneps, Leila

    On the Teichmuller tower of mapping class groups Allen Hatcher, Pierre Lochak and Leila Schneps;nition of d GT 1 , and show that #3; acts on the tower of pro#12;nite mapping class groups bm g;n for all sketch our version of this history. A Teichmuller tower consists of a collection of (algebraic, i.e. pro

  10. Coal petrographic genetic units in deltaic-plain deposits of the Campanian Mesa Verde Group (New Mexico, USA)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Coal petrographic genetic units in deltaic-plain deposits of the Campanian Mesa Verde Group (New stratigraphy; Coal; Maceral analysis; Microlithotype Abstract The Campanian rocks of the Mesa Verde Group units, i.e. intermediate term cycles. The continental facies consist of coastal-plain deposits (coals

  11. Nonequilibrium molecular vibrons: An approach based on the nonequilibrium Green function technique and the self-consistent Born approximation

    E-Print Network [OSTI]

    Cuniberti, Gianaurelio

    an analytical theory for this case. This theory is based on the self-consistent Born approximation SCBA , which

  12. Some exploitations of the self-consistent QRPA approach with the Gogny force

    SciTech Connect (OSTI)

    Peru, S.; Martini, M.; Dupuis, M. [CEA,DAM, DIF, F-91297 Arpajon (France); Institut d'Astronomie et d'Astrophysique, Universite Libre de Bruxelles, CP-226, 1050 Brussels, Belgium and CEA,DAM, DIF, F-91297 Arpajon (France); CEA,DAM, DIF, F-91297 Arpajon (France)

    2012-10-20T23:59:59.000Z

    Fully consistent axially-symmetric-deformed quasiparticle random phase approximation calculations have been performed with the D1S Gogny force. Giant resonances in exotic nuclei as well as in deformed Mg and Si isotopes have been studied. Dipole responses have been calculated in Ne isotopes and N=16 isotones to study the existence of soft dipole modes in exotic nuclei. The same formalism has been used to describe multipole responses up to octupole in the deformed and heavy nucleus {sup 238}U. Low energy spectroscopy of nickel isotopes has been studied, revealing 0{sup +} states which display a particular structure.

  13. Color-spin locking in a self-consistent Dyson-Schwinger approach

    E-Print Network [OSTI]

    Florian Marhauser; Dominik Nickel; Michael Buballa; Jochen Wambach

    2007-03-30T23:59:59.000Z

    We investigate the color-spin locked (CSL) phase of spin-one color- superconducting quark matter using a truncated Dyson-Schwinger equation for the quark propagator in Landau gauge. Starting from the most general parity conserving ansatz allowed by the CSL symmetry, the Dyson-Schwinger equation is solved self-consistently and dispersion relations are discussed. We find that chiral symmetry is spontaneously broken due to terms which have previously been neglected. As a consequence, the excitation spectrum contains only gapped modes even for massless quarks. Moreover, at moderate chemical potentials the quasiparticle pairing gaps are several times larger than expected from extrapolated weak-coupling results.

  14. Self-consistent Green's function calculation of 16O at small missing energies

    E-Print Network [OSTI]

    C. Barbieri; W. H. Dickhoff

    2004-10-19T23:59:59.000Z

    Calculations of the one-hole spectral function of 16O for small missing energies are reviewed. The self-consistent Green's function approach is employed together with the Faddeev equations technique in order to study the coupling of both particle-particle and particle-hole phonons to the single-particle motion. The results indicate that the characteristics of hole fragmentation are related to the low-lying states of 16O and an improvement of the description of this spectrum, beyond the random phase approximation, is required to understand the experimental strength distribution. A first calculation in this direction that accounts for two-phonon states is discussed.

  15. Third Minima in Thorium and Uranium Isotopes in a Self-Consistent Theory

    SciTech Connect (OSTI)

    McDonnell, J. D. [UTK/ORNL/LLNL; Nazarewicz, Witold [UTK/ORNL/University of Warsaw; Sheikh, J. A. [UTK/ORNL/University of Kashmir, India

    2013-01-01T23:59:59.000Z

    Background: Well-developed third minima, corresponding to strongly elongated and reflection-asymmetric shapes associated with dimolecular configurations, have been predicted in some non-self-consistent models to impact fission pathways of thorium and uranium isotopes. These predictions have guided the interpretation of resonances seen experimentally. On the other hand, self-consistent calculations consistently predict very shallow potential-energy surfaces in the third minimum region.

    Purpose: We investigate the interpretation of third-minimum configurations in terms of dimolecular (cluster) states. We study the isentropic potential-energy surfaces of selected even-even thorium and uranium isotopes at several excitation energies. In order to understand the driving effects behind the presence of third minima, we study the interplay between pairing and shell effects.

    Methods: We use the finite-temperature superfluid nuclear density functional theory. We consider two Skyrme energy density functionals: a traditional functional SkM and a recent functional UNEDF1 optimized for fission studies.

    Results: We predict very shallow or no third minima in the potential-energy surfaces of 232Th and 232U. In the lighter Th and U isotopes with N = 136 and 138, the third minima are better developed. We show that the reflection-asymmetric configurations around the third minimum can be associated with dimolecular states involving the spherical doubly magic 132Sn and a lighter deformed Zr or Mo fragment. The potential-energy surfaces for 228,232Th and 232U at several excitation energies are presented. We also study isotopic chains to demonstrate the evolution of the depth of the third minimum with neutron number.

    Conclusions: We show that the neutron shell effect that governs the existence of the dimolecular states around the third minimum is consistent with the spherical-to-deformed shape transition in the Zr andMo isotopes around N = 58.We demonstrate that the depth of the third minimum is sensitive to the excitation energy of the nucleus. In particular, the thermal reduction of pairing, and related enhancement of shell effects, at small excitation energies help to develop deeper third minima. At large excitation energies, shell effects are washed out and third minima disappear altogether.

  16. On the use of consistent approximations for the optimal design of beams

    SciTech Connect (OSTI)

    Polak, E.; Neto, C.K.

    1994-12-31T23:59:59.000Z

    Most optimal design problems can only be solved through discretization. One solution strategy is to expand the original problem into an infinite sequence of finite dimensional, approximating nonlinear programming problems, which can be solved using standard algorithms. In this paper, an expansion strategy based on the concept of consistent approximations is proposed for certain optimal beam design problems, where the beam is modelled using Euler-Bernoulli beam theory. It is shown that any accumulation point of the sequence of the stationary points of the family of approximating problems is a stationary point of the original, infinite-dimensional problem. Numerical results are presented for problems of optimal design of fixed beams.

  17. A thermodynamically consistent Ginzburg-Landau model for superfluid transition in liquid helium

    E-Print Network [OSTI]

    Alessia Berti; Valeria Berti

    2012-11-15T23:59:59.000Z

    In this paper we propose a thermodynamically consistent model for superfluid-normal phase transition in liquid helium, accounting for variations of temperature and density. The phase transition is described by means of an order parameter, according to the Ginzburg-Landau theory, emphasizing the analogies between superfluidity and superconductivity. The normal component of the velocity is assumed to be compressible and the usual phase diagram of liquid helium is recovered. Moreover, the continuity equation leads to a dependence between density and temperature in agreement with the experimental data.

  18. Short Distance Physics and the Consistency Relation for Scalar and Tensor Fluctuations in the Inflationary Universe

    E-Print Network [OSTI]

    Lam Hui; William H. Kinney

    2002-05-30T23:59:59.000Z

    Recent discussions suggest the possibility that short distance physics can significantly modify the behavior of quantum fluctuations in the inflationary universe, and alter the standard large scale structure predictions. Such modifications can be viewed as due to a different choice of the vacuum state. We show that such changes generally lead to violations of the well-known consistency relation between the scalar to tensor ratio and the tensor spectral index. Vacuum effects can introduce an observable modulation to the usual predictions for the scalar and tensor power spectra.

  19. Synchronization in node of complex networks consist of complex chaotic system

    SciTech Connect (OSTI)

    Wei, Qiang, E-mail: qiangweibeihua@163.com [Beihua University computer and technology College, BeiHua University, Jilin, 132021, Jilin (China); Digital Images Processing Institute of Beihua University, BeiHua University, Jilin, 132011, Jilin (China); Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024 (China); Xie, Cheng-jun [Beihua University computer and technology College, BeiHua University, Jilin, 132021, Jilin (China); Digital Images Processing Institute of Beihua University, BeiHua University, Jilin, 132011, Jilin (China); Liu, Hong-jun [School of Information Engineering, Weifang Vocational College, Weifang, 261041 (China); Li, Yan-hui [The Library, Weifang Vocational College, Weifang, 261041 (China)

    2014-07-15T23:59:59.000Z

    A new synchronization method is investigated for node of complex networks consists of complex chaotic system. When complex networks realize synchronization, different component of complex state variable synchronize up to different scaling complex function by a designed complex feedback controller. This paper change synchronization scaling function from real field to complex field for synchronization in node of complex networks with complex chaotic system. Synchronization in constant delay and time-varying coupling delay complex networks are investigated, respectively. Numerical simulations are provided to show the effectiveness of the proposed method.

  20. Modelling Starburst in HII galaxies: From chemical to spectro-photometric evolutionary self-consistent models

    E-Print Network [OSTI]

    M. L. Martin-Manjon; M. Molla; A. I. Diaz; R. Terlevich

    2008-10-13T23:59:59.000Z

    We have computed a series of realistic and self-consistent models that reproduce the properties of HII galaxies. The emitted spectrum of HII galaxies is reproduced by means of the photoionization code CLOUDY, using as ionizing spectrum the spectral energy distribution of the modelled HII galaxy, calculated using new and updated stellar population synthesis model (PopStar, Molla et al. 08) This, in turn, is calculated according to a star formation history and a metallicity evolution given by a chemical evolution code. Our technique reproduces observed abundances, diagnostic diagrams, colours and equivalent width vs. colour relations for local HII galaxies

  1. BILIWG: Consistent "Figures of Merit" (Presentation) | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromof EnergyBILIWG: Consistent "Figures of

  2. Title 43 CFR 1610.3-2 Consistency Requirements | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries PvtStratosolarTharaldson EthanolTillson,OpenOpen| OpenConsistency Requirements Jump

  3. Howe Group LLC | Open Energy Information

    Open Energy Info (EERE)

    Name: Howe Group LLC Place: Santa Fe, New Mexico Phone Number: +1 505 216 5119 Website: net http:www.hd-group. net Coordinates: 35.6869752, -105.937799 Show Map Loading...

  4. ThermoElectric Transport Properties of a Chain of Quantum Dots with Self-Consistent Reservoirs

    E-Print Network [OSTI]

    Philippe A. Jacquet

    2009-02-13T23:59:59.000Z

    We introduce a model for charge and heat transport based on the Landauer-Buttiker scattering approach. The system consists of a chain of $N$ quantum dots, each of them being coupled to a particle reservoir. Additionally, the left and right ends of the chain are coupled to two particle reservoirs. All these reservoirs are independent and can be described by any of the standard physical distributions: Maxwell-Boltzmann, Fermi-Dirac and Bose-Einstein. In the linear response regime, and under some assumptions, we first describe the general transport properties of the system. Then we impose the self-consistency condition, i.e. we fix the boundary values (T_L,\\mu_L) and (T_R,mu_R), and adjust the parameters (T_i,mu_i), for i = 1,...,N, so that the net average electric and heat currents into all the intermediate reservoirs vanish. This condition leads to expressions for the temperature and chemical potential profiles along the system, which turn out to be independent of the distribution describing the reservoirs. We also determine the average electric and heat currents flowing through the system and present some numerical results, using random matrix theory, showing that these currents are typically governed by Ohm and Fourier laws.

  5. Hazard consistent structural demands and in-structure design response spectra

    SciTech Connect (OSTI)

    Houston, Thomas W [Los Alamos National Laboratory; Costantino, Michael C [Los Alamos National Laboratory; Costantino, Carl J [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Current analysis methodology for the Soil Structure Interaction (SSI) analysis of nuclear facilities is specified in ASCE Standard 4. This methodology is based on the use of deterministic procedures with the intention that enough conservatism is included in the specified procedures to achieve an 80% probability of non-exceedance in the computed response of a Structure, System. or Component for given a mean seismic design input. Recently developed standards are aimed at achieving performance-based, risk consistent seismic designs that meet specified target performance goals. These design approaches rely upon accurately characterizing the probability (hazard) level of system demands due to seismic loads consistent with Probabilistic Seismic Hazard Analyses. This paper examines the adequacy of the deterministic SSI procedures described in ASCE 4-98 to achieve an 80th percentile of Non-Exceedance Probability (NEP) in structural demand, given a mean seismic input motion. The study demonstrates that the deterministic procedures provide computed in-structure response spectra that are near or greater than the target 80th percentile NEP for site profiles other than those resulting in high levels of radiation damping. The deterministic procedures do not appear to be as robust in predicting peak accelerations, which correlate to structural demands within the structure.

  6. False vacuum decay by self-consistent bounces in four dimensions

    E-Print Network [OSTI]

    Jurgen Baacke; Nina Kevlishvili

    2006-10-31T23:59:59.000Z

    We compute bounce solutions describing false vacuum decay in a Phi**4 model in four dimensions with quantum back-reaction. The back-reaction of the quantum fluctuations on the bounce profiles is computed in the one-loop and Hartree approximations. This is to be compared with the usual semiclassical approach where one computes the profile from the classical action and determines the one-loop correction from this profile. The computation of the fluctuation determinant is performed using a theorem on functional determinants, in addition we here need the Green' s function of the fluctuation operator in oder to compute the quantum back-reaction. As we are able to separate from the determinant and from the Green' s function the leading perturbative orders, we can regularize and renormalize analytically, in analogy of standard perturbation theory. The iteration towards self-consistent solutions is found to converge for some range of the parameters. Within this range the corrections to the semiclassical action are at most a few percent, the corrections to the transition rate can amount to several orders of magnitude. The strongest deviations happen for large couplings, as to be expected. Beyond some limit, there are no self-consistent bounce solutions.

  7. False vacuum decay by self-consistent bounces in four dimensions

    SciTech Connect (OSTI)

    Baacke, Juergen; Kevlishvili, Nina [Institut fuer Physik, Universitaet Dortmund, D - 44221 Dortmund (Germany); Institut fuer Physik, Universitaet Dortmund, D - 44221 Dortmund (Germany) and Andronikashvili Institute of Physics, GAS, 0177 Tbilisi (Georgia)

    2007-02-15T23:59:59.000Z

    We compute bounce solutions describing false vacuum decay in a {phi}{sup 4} model in four dimensions with quantum backreaction. The backreaction of the quantum fluctuations on the bounce profiles is computed in the one-loop and Hartree approximations. This is to be compared with the usual semiclassical approach where one computes the profile from the classical action and determines the one-loop correction from this profile. The computation of the fluctuation determinant is performed using a theorem on functional determinants, in addition we here need the Green's function of the fluctuation operator in oder to compute the quantum backreaction. As we are able to separate from the determinant and from the Gree n's function the leading perturbative orders, we can regularize and renormalize analytically, in analogy of standard perturbation theory. The iteration towards self-consistent solutions is found to converge for some range of the parameters. Within this range the corrections to the semiclassical action are at most a few percent, the corrections to the transition rate can amount to several orders of magnitude. The strongest deviations happen for large couplings, as to be expected. The transition rates are reduced for the one-loop backreaction, for the Hartree backreaction they are reduced for {alpha} < or approx. 0.5 and enhanced for larger values of {alpha}. Beyond some limit, there are no self-consistent bounce solutions.

  8. Radio-frequency sheaths physics: Experimental characterization on Tore Supra and related self-consistent modeling

    SciTech Connect (OSTI)

    Jacquot, Jonathan; Colas, Laurent, E-mail: laurent.colas@cea.fr; Corre, Yann; Goniche, Marc; Gunn, Jamie; Kubi?, Martin [CEA, IRFM, F-13108 saint-Paul-Lez-Durance (France); Milanesio, Daniele [Department of Electronics Politecnico di Torino, Torino (Italy); Heuraux, Stéphane [IJL UMR 7198, U. de Lorraine P2M, Fac. Des Sciences, BP 70239, F-54506 Vandoeuvre Cedex (France)

    2014-06-15T23:59:59.000Z

    During the 2011 experimental campaign, one of the three ion cyclotron resonance heating (ICRH) antennas in the Tore Supra tokamak was equipped with a new type of Faraday screen (FS). The new design aimed at minimizing the integrated parallel electric field over long field lines as well as increasing the heat exhaust capability of the actively cooled screen. It proved to be inefficient for attenuating the radio-frequency (RF)-sheaths on the screen itself on the contrary to the heat exhaust concept that allowed operation despite higher heat fluxes on the antenna. In parallel, a new approach has been proposed to model self-consistently RF sheaths: the SSWICH (Self-consistent Sheaths and Waves for IC Heating) code. Simulations results from SSWICH coupled with the TOPICA antenna code were able to reproduce the difference between the two FS designs and part of the spatial pattern of heat loads and Langmuir probe floating potential. The poloidal pattern is a reliable result that mainly depends on the electrical design of the antenna while the radial pattern is on the contrary highly sensitive to loosely constrained parameters such as perpendicular conductivity that generates a DC current circulation from the private region inside the antenna limiters to the free scrape off layer outside these limiters. Moreover, the cantilevered bars seem to be the element in the screen design that enhanced the plasma potential.

  9. Group Study Room Policy and Reservation Form

    E-Print Network [OSTI]

    Reynolds, Albert C.

    to the Group Study Reservation Form. Fill out the web form and click "Send" to submit the request. A confirming

  10. University of Amsterdam Programming Research Group

    E-Print Network [OSTI]

    Amsterdam, Universiteit van

    : A Domotics Application D. Staudt Report PRG0811 August 2008 #12; D. Staudt Programming Research Group Faculty

  11. University of Amsterdam Programming Research Group

    E-Print Network [OSTI]

    Amsterdam, Universiteit van

    : A Domotics Application D. Staudt Report PRG0811 August 2008 #12;D. Staudt Programming Research Group Faculty

  12. Program Building Committee's Central Planning Group.

    E-Print Network [OSTI]

    Richardson, Burl B.; Marshall, Mary G.

    1982-01-01T23:59:59.000Z

    Tooe ZTA245.7 8873 Y)O./3~ The Texas A&M (stem r ultural ~ion ~ervrce Damet C Plannstlel. Director College Stallon Program Building Committee's CENTRAL PLANNING GROUP 8-1344 Authors: Burl B. Richardson , Extension Program Specialist... and Mary G. Marshall, Extension Program Specialist Program -Building Committee's CENTRAL PLANNING GROUP This leaflet describes the role of the central planning group in the program development process_ The central planning group is the highest...

  13. Agenda: High Temperature Membrane Working Group Meeting

    Broader source: Energy.gov [DOE]

    Agenda for the High Temperature Membrane Working Group (HTMWG) meeting on May 18, 2009, in Arlington, Virginia

  14. UCIME Group Meeting January 18, 2001

    E-Print Network [OSTI]

    Clarke, Keith

    a presentation of SCOPE to the Flowers Growers Association in Carpinteria to a very interested and lively group

  15. Certifying Solutions to Permutation Group Problems

    E-Print Network [OSTI]

    Sorge, Volker

    the integration of permutation group algorithms with proof planning. We consider eight basic questions arising planning. We consider eight basic questions arising in computational permutation group theory, for whichCertifying Solutions to Permutation Group Problems Arjeh Cohen 1 , Scott H. Murray 1#3; , Martin

  16. Certifying Solutions to Permutation Group Problems

    E-Print Network [OSTI]

    Murray, Scott H.

    of permutation group algorithms with proof planning. We consider eight basic questions arising in com- putational the integration of permutation group algorithms from computer algebra with proof planning. We consider eight basicCertifying Solutions to Permutation Group Problems Arjeh Cohen1 , Scott H. Murray1, , Martin Pollet

  17. Proof Planning some Permutation Group Problems | Abstract |

    E-Print Network [OSTI]

    Sorge, Volker

    of permutation group algorithms from computer algebra with proof planning. We consider eight basic questions handle eight basic queries, ranging from \\Is this permutation in that permutation group?" to \\What suÃ?cient information. In detail we concentrate on the following eight problems: Let G be a group

  18. IY5512: Part 2 Information Security Group

    E-Print Network [OSTI]

    Mitchell, Chris

    Information Security Group The principles · The eight principles are: 1. Economy of mechanism 2. FailIY5512: Part 2 1 Information Security Group IY5512 Computer Security Part 2: Design & evaluation Chris Mitchell me@chrismitchell.net http://www.chrismitchell.net 1 Information Security Group Objectives

  19. Group Blind Digital Signatures: Theory and Applications

    E-Print Network [OSTI]

    Goldwasser, Shafi

    Group Blind Digital Signatures: Theory and Applications by Zul kar Amin Ramzan Submitted Committee on Graduate Students #12;Group Blind Digital Signatures: Theory and Applications by Zul kar Amin Blind Digital Signature. This construct combines the already existing notions of a Group Digital

  20. Group Blind Digital Signatures: Theory and Applications

    E-Print Network [OSTI]

    Goldwasser, Shafi

    Group Blind Digital Signatures: Theory and Applications by Zulfikar Amin Ramzan Submitted by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Arthur C. Smith Chairman, Departmental Committee on Graduate Students #12; Group Blind Digital Signatures cryptographic construct called a Group Blind Digital Signature. This construct combines the already existing

  1. GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS

    E-Print Network [OSTI]

    Shoj, Toshiaki

    GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan Abstract. Green functions of classical groups this, we define Green functions associated to complex reflection groups G(e, 1, n), and study

  2. Computer Graphics Group Leif KobbeltAACHEN

    E-Print Network [OSTI]

    Kobbelt, Leif

    Computer Graphics Group Leif KobbeltAACHEN Computer Graphics Leif Kobbelt Computer Graphics Group Leif KobbeltAACHEN Public Perception of CG · Games · Movies Computer Graphics Group Leif KobbeltAACHEN Computer Graphics Research · fundamental algorithms & data structures - continuous & discrete mathematics

  3. Information Security Group IY5512 Computer Security

    E-Print Network [OSTI]

    Mitchell, Chris

    Information Security Group IY5512 Computer Security Part 7b: Windows securityPart 7b: Windows security Chris Mitchell me@chrismitchell.net http://www.chrismitchell.net 1 Information Security Group) of Windows machines. 2 Information Security Group Objectives II · Focus on Active Directory, authentication

  4. Preferences, Information, and Group Decision Making

    E-Print Network [OSTI]

    Espinoza, Alejandro

    2009-05-15T23:59:59.000Z

    This study will examine how the structure of preferences of group members in a decision-making group, as well as the information they have, affects the collection and the processing of information by individual members of a decision making group...

  5. Preferences, Information, and Group Decision Making 

    E-Print Network [OSTI]

    Espinoza, Alejandro

    2009-05-15T23:59:59.000Z

    This study will examine how the structure of preferences of group members in a decision-making group, as well as the information they have, affects the collection and the processing of information by individual members of a decision making group...

  6. 303:20130618.1036 Thermal Engineering Group

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    303:20130618.1036 Thermal Engineering Group LASP's Thermal Engineering Group is involved in all of the component, as well as on-orbit trending and operations planning. Design Experience The Thermal Engineering Systems Engineering The group has formulated general thermal design and thermal interface requirements

  7. Theory of Lie Groups Claude Chevalley

    E-Print Network [OSTI]

    Landweber, Laura

    Theory of Lie Groups Claude Chevalley French mathematician Claude Chevalley had a major influence on the development of several areas of mathematics, but his most important con- tribution is his work on group theory. In Theory of Lie Groups, Chevalley fur- ther developed the ideas that Hermann Weyl pre- sented

  8. university-logo Beyond quasisplit groups

    E-Print Network [OSTI]

    Nevins, Monica

    university-logo Motivation Rappels Beyond quasisplit groups On the dual of a reductive algebraic Meeting Adler Duals #12;university-logo Motivation Rappels Beyond quasisplit groups Motivation Let G groups? Let's recall what's known... Adler Duals #12;university-logo Motivation Rappels Beyond quasisplit

  9. Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead

    E-Print Network [OSTI]

    Boonstra, Rudy

    Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

  10. Utility Variable Generation Integration Group Fall O&M User Group...

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

    O&M User Group Meeting Utility Variable Generation Integration Group Fall O&M User Group Meeting October 1, 2014 7:00AM CDT to October 2, 2014 3:00PM CDT The Utility Variable...

  11. What Happens When Low Status Groups Start Moving Up? Prejudice and Threat to Group Position

    E-Print Network [OSTI]

    Nierman, Angela J.

    2007-11-20T23:59:59.000Z

    Does threat operate as a cause or a consequence of prejudice? Three studies investigated how high status groups respond to low status groups' advances. I hypothesized that gays' status gains are threatening to heterosexuals' privileged group...

  12. $S$-duality in Vafa-Witten theory for non-simply laced gauge groups

    E-Print Network [OSTI]

    Siye Wu

    2008-02-14T23:59:59.000Z

    Vafa-Witten theory is a twisted N=4 supersymmetric gauge theory whose partition functions are the generating functions of the Euler number of instanton moduli spaces. In this paper, we recall quantum gauge theory with discrete electric and magnetic fluxes and review the main results of Vafa-Witten theory when the gauge group is simply laced. Based on the transformations of theta functions and their appearance in the blow-up formulae, we propose explicit transformations of the partition functions under the Hecke group when the gauge group is non-simply laced. We provide various evidences and consistency checks.

  13. Method of manufacturing semiconductor having group II-group VI compounds doped with nitrogen

    DOE Patents [OSTI]

    Compaan, Alvin D.; Price, Kent J.; Ma, Xianda; Makhratchev, Konstantin

    2005-02-08T23:59:59.000Z

    A method of making a semiconductor comprises depositing a group II-group VI compound onto a substrate in the presence of nitrogen using sputtering to produce a nitrogen-doped semiconductor. This method can be used for making a photovoltaic cell using sputtering to apply a back contact layer of group II-group VI compound to a substrate in the presence of nitrogen, the back coating layer being doped with nitrogen. A semiconductor comprising a group II-group VI compound doped with nitrogen, and a photovoltaic cell comprising a substrate on which is deposited a layer of a group II-group VI compound doped with nitrogen, are also included.

  14. Self-consistent description of single-particle levels of magic nuclei

    E-Print Network [OSTI]

    N. V. Gnezdilov; I. N. Borzov; E. E. Saperstein; S. V. Tolokonnikov

    2014-04-04T23:59:59.000Z

    Single-particle levels of seven magic nuclei are calculated within the Energy Density Functional (EDF) method by Fayans et al. Three versions of the EDF are used, the initial Fayans functional DF3 and its two variations, DF3-a and DF3-b, with different values of spin-orbit parameters. Comparison is made with predictions of the Skyrme-Hartree-Fock method with the HFB-17 functional. For the DF3-a functional, phonon coupling (PC) corrections to single-particle energies are found self-consistently with an approximate account for the tadpole diagram. Account for the PC corrections improves agreement with the data for heavy nuclei, e.g. for 208 Pb. On the other hand, for lighter nuclei, e.g. 40,48 Ca, PC corrections make the agreement a little worse. As estimations show, the main reason is that the approximation we use for the tadpole term is less accurate for the light nuclei.

  15. Polygonal web representation for higher order correlation functions of consistent polygonal Markov fields in the plane

    E-Print Network [OSTI]

    Tomasz Schreiber

    2009-05-02T23:59:59.000Z

    We consider polygonal Markov fields originally introduced by Arak and Surgailis (1982,1989). Our attention is focused on fields with nodes of order two, which can be regarded as continuum ensembles of non-intersecting contours in the plane, sharing a number of salient features with the two-dimensional Ising model. The purpose of this paper is to establish an explicit stochastic representation for the higher-order correlation functions of polygonal Markov fields in their consistency regime. The representation is given in terms of the so-called crop functionals (defined by a Moebius-type formula) of polygonal webs which arise in a graphical construction dual to that giving rise to polygonal fields. The proof of our representation formula goes by constructing a martingale interpolation between the correlation functions of polygonal fields and crop functionals of polygonal webs.

  16. Improved master equation approach to quantum transport: From Born to self-consistent Born approximation

    E-Print Network [OSTI]

    Jun Li; Jinshuang Jin; Xin-Qi Li; YiJing Yan

    2014-06-26T23:59:59.000Z

    Beyond the second-order Born approximation, we develop an improved master equation approach to quantum transport by virtue of a self-consistent Born approximation. The basic idea is replacing the free Green's function in the tunneling self-energy by an effective reduced propagator under the Born approximation. We found that the effect of this simple improvement is remarkable, for instance, it can not only recover the exact result of noninteracting transport under arbitrary voltages, but also predict the challenging nonequilibrium Kondo effect. In addition to having an elegant structure, the application convenience and accuracy of the proposed scheme, as demonstrated by the examples in this work, may suggest it a useful tool for quantum transports.

  17. Quantum Chemistry, and Eclectic Mix: From Silicon Carbide to Size Consistency

    SciTech Connect (OSTI)

    Jamie Marie Rintelman

    2004-12-19T23:59:59.000Z

    Chemistry is a field of great breadth and variety. It is this diversity that makes for both an interesting and challenging field. My interests have spanned three major areas of theoretical chemistry: applications, method development, and method evaluation. The topics presented in this thesis are as follows: (1) a multi-reference study of the geometries and relative energies of four atom silicon carbide clusters in the gas phase; (2) the reaction of acetylene on the Si(100)-(2x1) surface; (3) an improvement to the Effective Fragment Potential (EFP) solvent model to enable the study of reactions in both aqueous and nonaqueous solution; and (4) an evaluation of the size consistency of Multireference Perturbation Theory (MRPT). In the following section, the author briefly discusses two topics central to, and present throughout, this thesis: Multi-reference methods and Quantum Mechanics/Molecular Mechanics (QM/MM) methods.

  18. Self-Consistent parallel multi bunch beam-beam simulation using a grid-multipole method

    E-Print Network [OSTI]

    Jones, F; Pieloni, T

    2010-01-01T23:59:59.000Z

    The simulation code COMBI has been developed to enable the study of coherent beam-beam effects in the full collision scenario of the LHC, with multiple bunches interacting at multiple crossing points over many turns. The parallel version of COMBI was first implemented using a soft-Gaussian collision model which entails minimal communication between worker processes. Recently we have extended the code to a fully self-consistent collision model using a Grid-Multipole method, which allows worker processes to exchange charge and field information in a compact form which minimizes communication overhead. In this paper we describe the Grid-Multipole technique and its adaptation to the parallel environment through pre- and post-processing of charge and grid data. Performance measurements in a Myrinet cluster environment will be given.

  19. Macro-particle FEL model with self-consistent spontaneous radiation

    E-Print Network [OSTI]

    Litvinenko, Vladimir N

    2015-01-01T23:59:59.000Z

    Spontaneous radiation plays an important role in SASE FELs and storage ring FELs operating in giant pulse mode. It defines the correlation function of the FEL radiation as well as its many spectral features. Simulations of these systems using randomly distributed macro-particles with charge much higher that of a single electron create the problem of anomalously strong spontaneous radiation, limiting the capabilities of many FEL codes. In this paper we present a self-consistent macro-particle model which provided statistically exact simulation of multi-mode, multi-harmonic and multi-frequency short-wavelength 3-D FELs including the high power and saturation effects. The use of macro-particle clones allows both spontaneous and induced radiation to be treated in the same fashion. Simulations using this model do not require a seed and provide complete temporal and spatial structure of the FEL optical field.

  20. Representation independent algorithms for molecular response calculations in time-dependent self-consistent field theories

    SciTech Connect (OSTI)

    Tretiak, Sergei [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Four different numerical algorithms suitable for a linear scaling implementation of time-dependent Hartree-Fock and Kohn-Sham self-consistent field theories are examined. We compare the performance of modified Lanczos, Arooldi, Davidson, and Rayleigh quotient iterative procedures to solve the random-phase approximation (RPA) (non-Hermitian) and Tamm-Dancoff approximation (TDA) (Hermitian) eigenvalue equations in the molecular orbital-free framework. Semiempirical Hamiltonian models are used to numerically benchmark algorithms for the computation of excited states of realistic molecular systems (conjugated polymers and carbon nanotubes). Convergence behavior and stability are tested with respect to a numerical noise imposed to simulate linear scaling conditions. The results single out the most suitable procedures for linear scaling large-scale time-dependent perturbation theory calculations of electronic excitations.

  1. Methods for consistent forewarning of critical events across multiple data channels

    DOE Patents [OSTI]

    Hively, Lee M.

    2006-11-21T23:59:59.000Z

    This invention teaches further method improvements to forewarn of critical events via phase-space dissimilarity analysis of data from biomedical equipment, mechanical devices, and other physical processes. One improvement involves conversion of time-serial data into equiprobable symbols. A second improvement is a method to maximize the channel-consistent total-true rate of forewarning from a plurality of data channels over multiple data sets from the same patient or process. This total-true rate requires resolution of the forewarning indications into true positives, true negatives, false positives and false negatives. A third improvement is the use of various objective functions, as derived from the phase-space dissimilarity measures, to give the best forewarning indication. A fourth improvement uses various search strategies over the phase-space analysis parameters to maximize said objective functions. A fifth improvement shows the usefulness of the method for various biomedical and machine applications.

  2. Community consistency determines the stability transition window of power-grid nodes

    E-Print Network [OSTI]

    Kim, Heetae; Holme, Petter

    2015-01-01T23:59:59.000Z

    The synchrony of electric power systems is important in order to maintain stable electricity supply. Recently, the measure basin stability was introduced to quantify a node's ability to recover its synchronization when perturbed. In this work, we focus on how basin stability depends on the coupling strength between nodes. We use the Chilean power grid as a case study. In general, the basin stability goes from zero to one as the coupling strength increases. However, this transition does happen for the same values for different nodes. By understanding the transition for individual nodes, we can further characterize their role in the power-transmission dynamics. We find that nodes with an exceptionally large transition window also have a low community consistency. In other words, they are hard to classify into one community when applying a community detection algorithm to the network. This also gives an efficient way to identify nodes with a long transition window (which is a computationally time-consuming task)...

  3. Global helioseismic evidence for a deeply penetrating Solar meridional flow consisting of multiple flow cells

    E-Print Network [OSTI]

    Schad, A; Roth, M

    2013-01-01T23:59:59.000Z

    We use a novel global helioseismic analysis method to infer the meridional flow in the deep Solar interior. The method is based on the perturbation of eigenfunctions of Solar p modes due to meridional flow. We apply this method to time series obtained from Dopplergrams measured by the Michelson Doppler Imager aboard the Solar and Heliospheric Observatory (SOHO) covering the observation period 2004-2010. Our results show evidence that the meridional flow reaches down to the base of the convection zone. The flow profile has a complex spatial structure consisting of multiple flow cells distributed in depth and latitude. Toward the Solar surface, our results are in good agreement with flow measurements from local helioseismology.

  4. Physically consistent simulation of mesoscale chemical kinetics: The non-negative FIS-{alpha} method

    SciTech Connect (OSTI)

    Dana, Saswati, E-mail: saswatid@rishi.serc.iisc.ernet.in [Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore 560012 (India); Raha, Soumyendu, E-mail: raha@serc.iisc.ernet.in [Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore 560012 (India)

    2011-10-01T23:59:59.000Z

    Biochemical pathways involving chemical kinetics in medium concentrations (i.e., at mesoscale) of the reacting molecules can be approximated as chemical Langevin equations (CLE) systems. We address the physically consistent non-negative simulation of the CLE sample paths as well as the issue of non-Lipschitz diffusion coefficients when a species approaches depletion and any stiffness due to faster reactions. The non-negative Fully Implicit Stochastic {alpha} (FIS {alpha}) method in which stopped reaction channels due to depleted reactants are deleted until a reactant concentration rises again, for non-negativity preservation and in which a positive definite Jacobian is maintained to deal with possible stiffness, is proposed and analysed. The method is illustrated with the computation of active Protein Kinase C response in the Protein Kinase C pathway.

  5. Method for using global optimization to the estimation of surface-consistent residual statics

    DOE Patents [OSTI]

    Reister, David B. (Knoxville, TN); Barhen, Jacob (Oak Ridge, TN); Oblow, Edward M. (Knoxville, TN)

    2001-01-01T23:59:59.000Z

    An efficient method for generating residual statics corrections to compensate for surface-consistent static time shifts in stacked seismic traces. The method includes a step of framing the residual static corrections as a global optimization problem in a parameter space. The method also includes decoupling the global optimization problem involving all seismic traces into several one-dimensional problems. The method further utilizes a Stochastic Pijavskij Tunneling search to eliminate regions in the parameter space where a global minimum is unlikely to exist so that the global minimum may be quickly discovered. The method finds the residual statics corrections by maximizing the total stack power. The stack power is a measure of seismic energy transferred from energy sources to receivers.

  6. Leaching characteristics of the metal waste form from the electrometallurgical treatment process: Product consistency testing

    SciTech Connect (OSTI)

    Johnson, S. G.; Keiser, D. D.; Frank, S. M.; DiSanto, T.; Noy, M.

    1999-11-11T23:59:59.000Z

    Argonne National Laboratory is developing an electrometallurgical treatment for spent fuel from the experimental breeder reactor II. A product of this treatment process is a metal waste form that incorporates the stainless steel cladding hulls, zirconium from the fuel and the fission products that are noble to the process, i.e., Tc, Ru, Nb, Pd, Rh, Ag. The nominal composition of this waste form is stainless steel/15 wt% zirconium/1--4 wt% noble metal fission products/1--2 wt % U. Leaching results are presented from several tests and sample types: (1) 2 week monolithic immersion tests on actual metal waste forms produced from irradiated cladding hulls, (2) long term (>2 years) pulsed flow tests on samples containing technetium and uranium and (3) crushed sample immersion tests on cold simulated metal waste form samples. The test results will be compared and their relevance for waste form product consistency testing discussed.

  7. A Simplified Self-Consistent Probabilities Framework to Characterize Percolation Phenomena on Interdependent Networks : An Overview

    E-Print Network [OSTI]

    Feng, Ling; Hu, Yanqing

    2015-01-01T23:59:59.000Z

    Interdependent networks are ubiquitous in our society, ranging from infrastructure to economics, and the study of their cascading behaviors using percolation theory has attracted much attention in the recent years. To analyze the percolation phenomena of these systems, different mathematical frameworks have been proposed including generating functions, eigenvalues among some others. These different frameworks approach the phase transition behaviors from different angles, and have been very successful in shaping the different quantities of interest including critical threshold, size of the giant component, order of phase transition and the dynamics of cascading. These methods also vary in their mathematical complexity in dealing with interdependent networks that have additional complexity in terms of the correlation among different layers of networks or links. In this work, we review a particular approach of simple self-consistent probability equations, and illustrate that it can greatly simplify the mathemati...

  8. Self-consistent electrodynamics of large-area high-frequency capacitive plasma discharge

    SciTech Connect (OSTI)

    Chen Zhigang; Rauf, Shahid; Collins, Ken [Applied Materials, Inc., 974 E. Arques Avenue, Sunnyvale, California 94085 (United States)

    2010-10-15T23:59:59.000Z

    Capacitively coupled plasmas (CCPs) generated using high frequency (3-30 MHz) and very high frequency (30-300 MHz) radio-frequency (rf) sources are used for many plasma processing applications including thin film etching and deposition. When chamber dimensions become commensurate with the effective rf wavelength in the plasma, electromagnetic wave effects impose a significant influence on plasma behavior. Because the effective rf wavelength in plasma depends upon both rf and plasma process conditions (e.g., rf power and gas pressure), a self-consistent model including both the rf power delivery system and the plasma discharge is highly desirable to capture a more complete physical picture of the plasma behavior. A three-dimensional model for self-consistently studying both electrodynamic and plasma dynamic behavior of large-area (Gen 10, >8 m{sup 2}) CCP is described in this paper. This model includes Maxwell's equations and transport equations for charged and neutral species, which are coupled and solved in the time domain. The complete rf plasma discharge chamber including the rf power delivery subsystem, rf feed, electrodes, and the plasma domain is modeled as an integrated system. Based on this full-wave solution model, important limitations for processing uniformity imposed by electromagnetic wave propagation effects in a large-area CCP (3.05x2.85 m{sup 2} electrode size) are studied. The behavior of H{sub 2} plasmas in such a reactor is examined from 13.56 to 200 MHz. It is shown that various rectangular harmonics of electromagnetic fields can be excited in a large-area rectangular reactor as the rf or power is increased. The rectangular harmonics can create not only center-high plasma distribution but also high plasma density at the corners and along the edges of the reactor.

  9. The dusty MOCASSIN: fully self-consistent 3D photoionisation and dust radiative transfer models

    E-Print Network [OSTI]

    B. Ercolano; M. J. Barlow; P. J. Storey

    2005-07-02T23:59:59.000Z

    We present the first 3D Monte Carlo (MC) photoionisation code to include a fully self-consistent treatment of dust radiative transfer (RT) within a photoionised region. This is the latest development (Version 2.0) of the gas-only photoionisation code MOCASSIN (Ercolano et al., 2003a), and employs a stochastic approach to the transport of radiation, allowing both the primary and secondary components of the radiation field to be treated self-consistently, whilst accounting for the scattering of radiation by dust grains mixed with the gas, as well as the absorption and emission of radiation by both the gas and the dust components. A set of rigorous benchmark tests have been carried out for dust-only spherically symmetric geometries and 2D disk configurations. MOCASSIN's results are found to be in agreement with those obtained by well established dust-only RT codes that employ various approaches to the solution of the RT problem. A model of the dust and of the photoionised gas components of the planetary nebula (PN) NGC 3918 is also presented as a means of testing the correct functioning of the RT procedures in a case where both gas and dust opacities are present. The two components are coupled via the heating of dust grains by the absorption of both UV continuum photons and resonance line photons emitted by the gas. The MOCASSIN results show agreement with those of a 1D dust and gas model of this nebula published previously, showing the reliability of the new code, which can be applied to a variety of astrophysical environments.

  10. A consistent, differential versus integral, method for measuring the delayed neutron yield in fissions

    SciTech Connect (OSTI)

    Flip, A. [CEA, Cadarache (France); Pang, H.F. [Tsinghua Univ., Beijing (China); D`Angelo, A. [ENEA, Roma (Italy)

    1995-12-31T23:59:59.000Z

    Due to the persistent uncertainties: {approximately} 5 % (the uncertainty, here and there after, is at 1{sigma}) in the prediction of the `reactivity scale` ({beta}{sub eff}) for a fast power reactor, an international project was recently initiated in the framework of the OECD/NEA activities for reevaluation, new measurements and integral benchmarking of delayed neutron (DN) data and related kinetic parameters (principally {beta}{sub eff}). Considering that the major part of this uncertainty is due to uncertainties in the DN yields (v{sub d}) and the difficulty for further improvement of the precision in differential (e.g. Keepin`s method) measurements, an international cooperative strategy was adopted aiming at extracting and consistently interpreting information from both differential (nuclear) and integral (in reactor) measurements. The main problem arises from the integral side; thus the idea was to realize {beta}{sub eff} like measurements (both deterministic and noise) in `clean` assemblies. The `clean` calculational context permitted the authors to develop a theory allowing to link explicitly this integral experimental level with the differential one, via a unified `Master Model` which relates v{sub d} and measurables quantities (on both levels) linearly. The combined error analysis is consequently largely simplified and the final uncertainty drastically reduced (theoretically, by a factor {radical}3). On the other hand the same theoretical development leading to the `Master Model`, also resulted in a structured scheme of approximations of the general (stochastic) Boltzmann equation allowing a consistent analysis of the large range of measurements concerned (stochastic, dynamic, static ... ). This paper is focused on the main results of this theoretical development and its application to the analysis of the Preliminary results of the BERENICE program ({beta}{sub eff} measurements in MASURCA, the first assembly in CADARACHE-FRANCE).

  11. Service station requirements for safe use of hydrogen based fuels: NHA work group update

    SciTech Connect (OSTI)

    Coutts, D.A. [Westinghouse Savannah River Co., Aiken, SC (United States)

    1997-12-31T23:59:59.000Z

    This paper consists of viewgraphs which summarize the results of the meeting of the working group on safety standards. A standard for an odorant for hydrogen leak detection is set forth. Recent activities with the National Fire Protection Association and the International Standard Organization are enumerated. The path forward is also summarized.

  12. Towards a fully consistent Milky Way disc model - III. Constraining the initial mass function

    E-Print Network [OSTI]

    Rybizki, Jan

    2015-01-01T23:59:59.000Z

    We use our vertical Milky Way disc model together with Galaxia to create mock observations of stellar samples in the solar neighbourhood. We compare these to the corresponding volume complete observational samples of dereddened and binary accounted data from Hipparcos and the Catalogue of Nearby Stars. Sampling the likelihood in the parameter space we determine a new fiducial IMF considering constraints from dwarf and giant stars. The resulting IMF observationally backed in the range from 0.5 to 10 Msun is a two slope broken power law with -1.49 +- 0.08 for the low mass slope, a break at 1.39 +- 0.05 Msun and a high mass slope of -3.02 +- 0.06. The Besancon group also converging to a similar IMF even though their observational sample being quite different to ours shows that the forward modelling technique is a powerful diagnostic to test theoretical concepts like the local field star IMF.

  13. Lubricating-oil basestock data and analysis: based on the ASTM-NBS basestock consistency study

    SciTech Connect (OSTI)

    Becker, D.A.; Hsu, S.M.; Weeks, S.

    1983-10-01T23:59:59.000Z

    In this 13-month study, four virgin oil and six re-refined oil companies submitted monthly production samples to National Bureau of Standards (NBS). There, the samples were subdivided, coded, and sent to 14 participating laboratories for analysis of the physical and chemical properties as well as for evaluation in various bench tests. An eleventh control sample was sent monthly for reference. Various re-refining processes included in the study are: acid/clay; clay treatment; short path distillation; pretreat/vacuum distillation/clay finish; pretreat/hydrogenation. The processes for the virgin base oils are mainly solvent extraction/distillation with and without the hydro-finishing step. In this report the data are grouped into six main categories: (1) theology; (2) physical properties; (3) chemical properties; (4) hydrocarbon type analysis; (5) general performance tests; and (6) oxidation and wear bench tests. Within each category, test results are arranged according to the similarity of the tests or test properties.

  14. Health Research Groups 2013 Research Group Leaders and Co-leaders are in Bold font

    E-Print Network [OSTI]

    Saskatchewan, University of

    Therapy/Medicine Gerdts, Volker Western College of Veterinary Medicine/VIDO #12;Health Research Groups

  15. Water masers in the Local Group of galaxies

    E-Print Network [OSTI]

    A. Brunthaler; C. Henkel; W. J. G. de Blok; M. J. Reid; L. J. Greenhill; H. Falcke

    2006-06-22T23:59:59.000Z

    We compare the number of detected 22 GHz H2O masers in the Local Group galaxies M31, M33, NGC6822, IC10, IC1613, DDO187, GR8, NGC185, and the Magellanic Clouds with the water maser population of the Milky Way. To accomplish this we searched for water maser emission in the two Local Group galaxies M33 and NGC6822 using the Very Large Array (VLA) and incorporated results from previous studies. We observed 62 HII regions in M33 and 36 regions with H-alpha emission in NGC6822. Detection limits are 0.0015 and 0.0008 Lsun for M33 and NGC6822, respectively (corresponding to 47 and 50 mJy in three channels with 0.7 km/s width). M33 hosts three water masers above our detection limit, while in NGC6822 no maser source was detected. We find that the water maser detection rates in the Local Group galaxies M31, M33, NGC6822, IC1613, DDO187, GR8, NGC185, and the Magellanic Clouds are consistent with expectations from the Galactic water masers if one considers the different star formation rates of the galaxies. However, the galaxy IC10 exhibits an overabundance of masers, which may result from a compact central starburst.

  16. Automatically Identifying Groups Based on Content and Collective Behavioral Patterns of Group Members

    SciTech Connect (OSTI)

    Gregory, Michelle L.; Engel, David W.; Bell, Eric B.; Piatt, Andrew W.; Dowson, Scott T.; Cowell, Andrew J.

    2011-07-17T23:59:59.000Z

    Online communities, or groups, have largely been defined based on links, page rank, and eigenvalues. In this paper we explore identifying abstract groups, groups where member's interests and online footprints are similar but they are not necessarily connected to one another explicitly. We use a combination of structural information and content information from posts and their comments to build a footprint for groups. We find that these variables do a good job at identifying groups, placing members within a group, and help determine the appropriate granularity for group boundaries.

  17. Consistent definitions of flux and the dual superconductivity parameters in SU(2) lattice gauge theory

    E-Print Network [OSTI]

    Haymaker, R W; Haymaker, Richard W.; Matsuki, Takayuki

    2005-01-01T23:59:59.000Z

    We revisit the confinement problem in maximal Abelian gauge SU(2) gluodynamics as a dual superconductor through the study of the dual Abrikosov vortex. There are three effects that have not been included in previous studies. We employ a definition of flux that satisfies the exact Ward-Takahashi identity giving exact electric Maxwell equations for lattice averages. Second we modify the standard definition of magnetic current to give consistent magnetic Maxwell equations. Finally we point out that the dual Ginzburg-Landau-Higgs model is an oversimplification of the physics of the system because of the presence of significant electric currents. As a result we need a third parameter to describe the vortex in addition to the standard ones, i.e., the London penetration depth and the coherence length. Without a complete model at our disposal, we estimate the values of these three parameters for $\\beta = 2.5115$ on a $32^4$ lattice. As a digression, we also show that the truncation of monopoles to the percolating clu...

  18. Shedding light on the prompt high efficiency paradox - self consistent modeling of GRB afterglows

    E-Print Network [OSTI]

    Beniamini, Paz; Duran, Rodolfo Barniol; Piran, Tsvi

    2015-01-01T23:59:59.000Z

    We examine GRBs with both Fermi-LAT and X-ray afterglow data. Assuming that the 100MeV (LAT) emission is radiation from cooled electrons accelerated by external shocks, we show that the kinetic energy of the blast wave estimated from the 100MeV flux is 50 times larger than the one estimated from the X-ray flux. This can be explained if either: i) electrons radiating at X-rays are significantly cooled by SSC (suppressing the synchrotron flux above the cooling frequency) or ii) if the X-ray emitting electrons, unlike those emitting at 100MeV energies, are in the slow cooling regime. In both cases the X-ray flux is no longer an immediate proxy of the blast wave kinetic energy. We model the LAT, X-ray and optical data and show that in general these possibilities are consistent with the data, and explain the apparent disagreement between X-ray and LAT observations. All possible solutions require weak magnetic fields: $10^{-6}energy...

  19. Effects of temperature and radiation on the nuclear waste glass product consistency leach test

    SciTech Connect (OSTI)

    Crawford, C.L.; Bibler, N.E.

    1993-01-01T23:59:59.000Z

    Previous leach studies carried out with monolithic glass samples have shown that glass dissolution rates increase with increasing temperature and may or may not increase on exposure to external gamma radiolysis. In this study we have investigated the effects of temperature (70--1200[degrees]C) and radiation on the dissolution of simulated radioactive waste glasses using the Product Consistency Test (PCT). The PCT is a seven day, crushed glass leach test in deionized water that is carried out at 9OO[degrees]C. To date our results indicate no significant effect of external Co--60 gamma radiation when testing various simulated waste glasses at 90[degrees]C in a wellinsulated compartment within a Gammacell 220 irradiation unit. The temperature dependence for glass dissolution clearly exhibits Arrheniustype behavior for two of the three glasses tested. For the third glass the dissolution decreases at the higher temperatures, probably due to saturation effects. Actual radioactive waste glasses will be investigated later as part of this study.

  20. Effects of temperature and radiation on the nuclear waste glass product consistency leach test

    SciTech Connect (OSTI)

    Crawford, C.L.; Bibler, N.E.

    1993-04-01T23:59:59.000Z

    Previous leach studies carried out with monolithic glass samples have shown that glass dissolution rates increase with increasing temperature and may or may not increase on exposure to external gamma radiolysis. In this study we have investigated the effects of temperature (70--1200{degrees}C) and radiation on the dissolution of simulated radioactive waste glasses using the Product Consistency Test (PCT). The PCT is a seven day, crushed glass leach test in deionized water that is carried out at 9OO{degrees}C. To date our results indicate no significant effect of external Co--60 gamma radiation when testing various simulated waste glasses at 90{degrees}C in a wellinsulated compartment within a Gammacell 220 irradiation unit. The temperature dependence for glass dissolution clearly exhibits Arrheniustype behavior for two of the three glasses tested. For the third glass the dissolution decreases at the higher temperatures, probably due to saturation effects. Actual radioactive waste glasses will be investigated later as part of this study.

  1. Consistency of Perfect Fluidity and Jet Quenching in semi-Quark-Gluon Monopole Plasmas

    E-Print Network [OSTI]

    Jiechen Xu; Jinfeng Liao; Miklos Gyulassy

    2015-03-31T23:59:59.000Z

    We utilize a new framework, CUJET3.0, to deduce the energy and temperature dependence of jet transport parameter, $\\hat{q}(E>10\\; {\\rm GeV},T)$, from a combined analysis of available data on nuclear modification factor and azimuthal asymmetries from RHIC/BNL and LHC/CERN on high energy nuclear collisions. Extending a previous perturbative-QCD based jet energy loss model (known as CUJET2.0) with (2+1)D viscous hydrodynamic bulk evolution, this new framework includes three novel features of nonperturbative physics origin: (1) the Polyakov loop suppression of color-electric scattering (aka "semi-QGP" of Pisarski et al) and (2) the enhancement of jet scattering due to emergent magnetic monopoles near $T_c$ (aka "magnetic scenario" of Liao and Shuryak) and (3) thermodynamic properties constrained by lattice QCD data. CUJET3.0 reduces to v2.0 at high temperatures $T > 400$ MeV, but greatly enhances $\\hat{q}$ near the QCD deconfinement transition temperature range. This enhancement accounts well for the observed elliptic harmonics of jets with $p_T>10$ GeV. Extrapolating our data-constrained $\\hat{q}$ down to thermal energy scales, $E \\sim 2$ GeV, we find for the first time a remarkable consistency between high energy jet quenching and bulk perfect fluidity with $\\eta/s\\sim T^3/\\hat{q} \\sim 0.1$ near $T_c$.

  2. On the consistency of QCBED structure factor measurements for TiO2 (Rutile)

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

    Spence, J.C.H [Arizona State University; Friis, J. [Norwegian University of Science and Technology; Zuo, J.M [University of Illinois, Urbana, IL; Jiang, B.

    2003-10-01T23:59:59.000Z

    The same Bragg reflection in TiO2 from twelve different CBED patterns (from different crystals, orientations and thicknesses) are analysed quantitatively in order to evaluate the consistency of the QCBED method for bond-charge mapping. The standard deviation in the resulting distribution of derived X-ray structure factors is found to be an order of magnitude smaller than that in conventional X-ray work , and the standard error (0.026% for FX(110)) is slightly better than obtained by the X-ray Pendellosung method applied to silicon. This is sufficiently accuracy to distinguish between atomic, covalent and ionic models of bonding. We describe the importance of extracting experimental parameters from CCD camera characterization, and of surface oxidation and crystal shape. The current experiments show that the QCBED method is now a robust and powerful tool for low order structure factor measurement, which does not suffer from the large extinction (multiple scattering) errors which occur in inorganic X-ray crystallography, and may be applied to nanocrystals. Our results will be used to understand the role of d electrons in the chemical bonding of TiO2.

  3. Self-consistent modeling of DC and microwave nitrogen discharges and their afterglows

    SciTech Connect (OSTI)

    Guerra, Vasco [Centro de Fisica dos Plasmas, Instituto Superior Tecnico, 1049-001 Lisbon (Portugal)

    2004-12-01T23:59:59.000Z

    This report presents an investigation on the modeling of stationary DC and microwave nitrogen discharges and their afterglows, operating at pressures around one Torr and ionization degrees between 10-7-10-4. The model is based on the self-consistent solutions to the electron Boltzmann equation coupled to the rate balance equations for the most important neutral and charged species, the wave electrodynamics characteristics and the gas thermal balance equation. The results are obtained as a function of the usual discharge operating parameters, namely gas pressure, discharge current or electron density, and tube radius. It is shown that the vibrationally excited molecules play a central role in the whole problem, ensuring a strong link between different kinetics and directly contributing to the mechanisms of dissociation and gas heating. Furthermore, vibrationally excited molecules in high vibration levels are in the origin of the peaks observed in the flowing afterglow for the concentrations of several species, such as N{sub 2}(A {sup 3}{sigma}{sub g}{sup +}), N2(B 3{pi}g), N{sub 2}{sup +}(B {sup 2}{sigma}{sub u}{sup +}) and electrons, which occur downstream from the discharge after a dark zone as a consequence of the V-V up-pumping mechanism.

  4. Consistent use of type Ia supernovae highly magnified by galaxy clusters to constrain the cosmological parameters

    SciTech Connect (OSTI)

    Zitrin, Adi [Cahill Center for Astronomy and Astrophysics, California Institute of Technology, MS 249-17, Pasadena, CA 91125 (United States); Redlich, Matthias [Universität Heidelberg, Zentrum für Astronomie, Institut für Theoretische Astrophysik, Philosophenweg 12, D-69120 Heidelberg (Germany); Broadhurst, Tom, E-mail: adizitrin@gmail.com [Department of Theoretical Physics, University of Basque Country UPV/EHU, Bilbao (Spain)

    2014-07-01T23:59:59.000Z

    We discuss how Type Ia supernovae (SNe) strongly magnified by foreground galaxy clusters should be self-consistently treated when used in samples fitted for the cosmological parameters. While the cluster lens magnification of a SN can be well constrained from sets of multiple images of various background galaxies with measured redshifts, its value is typically dependent on the fiducial set of cosmological parameters used to construct the mass model. In such cases, one should not naively demagnify the observed SN luminosity by the model magnification into the expected Hubble diagram, which would create a bias, but instead take into account the cosmological parameters a priori chosen to construct the mass model. We quantify the effect and find that a systematic error of typically a few percent, up to a few dozen percent per magnified SN may be propagated onto a cosmological parameter fit unless the cosmology assumed for the mass model is taken into account (the bias can be even larger if the SN is lying very near the critical curves). We also simulate how such a bias propagates onto the cosmological parameter fit using the Union2.1 sample supplemented with strongly magnified SNe. The resulting bias on the deduced cosmological parameters is generally at the few percent level, if only few biased SNe are included, and increases with the number of lensed SNe and their redshift. Samples containing magnified Type Ia SNe, e.g., from ongoing cluster surveys, should readily account for this possible bias.

  5. On the Consistency of QCBED Structure Factor Measurements for TiO2 (Rutile)

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

    Jiang, Bin; Zuo, Jian-Min; Friis, Jesper; Spence, John C.H.

    2003-10-01T23:59:59.000Z

    The same Bragg reflection in TiO2 from twelve different CBED patterns (from different crystals, orientations and thicknesses) are analysed quantitatively in order to evaluate the consistency of the QCBED method for bond-charge mapping. The standard deviation in the resulting distribution of derived X-ray structure factors is found to be an order of magnitude smaller than that in conventional X-ray work, and the standard error (0.026% for FX(110)) is slightly better than obtained by the X-ray Pendellosung method applied to silicon. This is sufficiently accuracy to distinguish between atomic, covalent and ionic models of bonding. We describe the importance of extractingmore »experimental parameters from CCD camera characterization, and of surface oxidation and crystal shape. The current experiments show that the QCBED method is now a robust and powerful tool for low order structure factor measurement, which does not suffer from the large extinction (multiple scattering) errors which occur in inorganic X-ray crystallography, and may be applied to nanocrystals. Our results will be used to understand the role of d electrons in the chemical bonding of TiO2.« less

  6. Consistent decoupling of heavy scalars and moduli in N=1 supergravity

    SciTech Connect (OSTI)

    Achucarro, Ana [Instituut-Lorentz for Theoretical Physics, Leiden (Netherlands); Department of Theoretical Physics, University of the Basque Country UPV-EHU, 48940 Bilbao (Spain); Hardeman, Sjoerd; Sousa, Kepa [Instituut-Lorentz for Theoretical Physics, Leiden (Netherlands)

    2008-11-15T23:59:59.000Z

    We consider the conditions for integrating out heavy chiral fields and moduli in N=1 supergravity, subject to two explicit requirements. First, the expectation values of the heavy fields should be unaffected by low energy phenomena. Second, the low energy effective action should be described by N=1 supergravity. This leads to a working definition of decoupling in N=1 supergravity that is different from the usual condition of gravitational strength couplings between sectors, and that is the relevant one for inflation with moduli stabilization, where some light fields (the inflaton) can have long excursions in field space. It is also important for finding de Sitter vacua in flux compactifications such as LARGE volume and Kachru-Kallosh-Linde-Trivedi (KKLT) scenarios, since failure of the decoupling condition invalidates the implicit assumption that the stabilization and uplifting potentials have a low energy supergravity description. We derive a sufficient condition for supersymmetric decoupling, namely, that the Kaehler invariant function G=K+log|W|{sup 2} is of the form G=L(light,H(heavy)) with H and L arbitrary functions, which includes the particular case G=L(light)+H(heavy). The consistency condition does not hold in general for the ansatz K=K(light)+K(heavy), W=W(light)+W(heavy) and we discuss under what circumstances it does hold.

  7. About consistence between pi N Delta spin-3/2 gauge couplings and electromagnetic gauge invariance

    E-Print Network [OSTI]

    D. Badagnani; C. Barbero; A. Mariano

    2015-03-05T23:59:59.000Z

    We analyze the consistence between the recently proposed "spin 3/2 gauge" interaction for the Delta resonance with nucleons and pions, and the fundamental electromagnetic gauge invariance in any radiative amplitude. Chiral symmetric pion-derivative pi N Delta couplings can be substituted through a linear transformation to get Delta-derivative ones, which have the property of decoupling the 1/2 field components of the Delta propagator. Nevertheless, the electromagnetic gauge invariance introduced through minimal substitution in all derivatives, can only be fulfilled at a given order n without destroying the spin 3/2 one by dropping n+1 order terms within an effective field theory (EFT) framework with a defined power counting. In addition, we show that the Ward identity for the gamma Delta gamma vertex cannot be fulfilled with a trimmed 3/2 propagator, which should be necessary in order to keep the spin 3/2 gauge symmetry in the radiative case for the gamma Delta gamma amplitude. Finally, it is shown that radiative corrections of the spin 3/2 gauge strong vertexes at one loop, reintroduce the conventional interaction.

  8. Is the firewall consistent? Gedanken experiments on black hole complementarity and firewall proposal

    SciTech Connect (OSTI)

    Hwang, Dong-il; Lee, Bum-Hoon; Yeom, Dong-han, E-mail: dongil.j.hwang@gmail.com, E-mail: bhl@sogang.ac.kr, E-mail: innocent.yeom@gmail.com [Center for Quantum Spacetime, Sogang University, Seoul 121-742 (Korea, Republic of)

    2013-01-01T23:59:59.000Z

    In this paper, we discuss the black hole complementarity and the firewall proposal at length. Black hole complementarity is inevitable if we assume the following five things: unitarity, entropy-area formula, existence of an information observer, semi-classical quantum field theory for an asymptotic observer, and the general relativity for an in-falling observer. However, large N rescaling and the AMPS argument show that black hole complementarity is inconsistent. To salvage the basic philosophy of the black hole complementarity, AMPS introduced a firewall around the horizon. According to large N rescaling, the firewall should be located close to the apparent horizon. We investigate the consistency of the firewall with the two critical conditions: the firewall should be near the time-like apparent horizon and it should not affect the future infinity. Concerning this, we have introduced a gravitational collapse with a false vacuum lump which can generate a spacetime structure with disconnected apparent horizons. This reveals a situation that there is a firewall outside of the event horizon, while the apparent horizon is absent. Therefore, the firewall, if it exists, not only does modify the general relativity for an in-falling observer, but also modify the semi-classical quantum field theory for an asymptotic observer.

  9. Community consistency determines the stability transition window of power-grid nodes

    E-Print Network [OSTI]

    Heetae Kim; Sang Hoon Lee; Petter Holme

    2015-04-28T23:59:59.000Z

    The synchrony of electric power systems is important in order to maintain stable electricity supply. Recently, the measure basin stability was introduced to quantify a node's ability to recover its synchronization when perturbed. In this work, we focus on how basin stability depends on the coupling strength between nodes. We use the Chilean power grid as a case study. In general, basin stability goes from zero to one as coupling strength increases. However, this transition does not happen at the same value for different nodes. By understanding the transition for individual nodes, we can further characterize their role in the power-transmission dynamics. We find that nodes with an exceptionally large transition window also have a low community consistency. In other words, they are hard to classify to one community when applying a community detection algorithm. This also gives an efficient way to identify nodes with a long transition window (which is computationally time consuming). Finally, to corroborate these results, we present a stylized example network with prescribed community structures that captures the mentioned characteristics of basin stability transition and recreates our observations.

  10. Consistent empirical physical formula construction for recoil energy distribution in HPGe detectors using artificial neural networks

    E-Print Network [OSTI]

    Serkan Akkoyun; Nihat Yildiz

    2012-07-23T23:59:59.000Z

    The gamma-ray tracking technique is one of the highly efficient detection method in experimental nuclear structure physics. On the basis of this method, two gamma-ray tracking arrays, AGATA in Europe and GRETA in the USA, are currently being developed. The interactions of neutrons in these detectors lead to an unwanted background in the gamma-ray spectra. Thus, the interaction points of neutrons in these detectors have to be determined in the gamma-ray tracking process in order to improve photo-peak efficiencies and peak-to-total ratios of the gamma-ray peaks. Therefore, the recoil energy distributions of germanium nuclei due to inelastic scatterings of 1-5 MeV neutrons were obtained both experimentally and using artificial neural networks. Also, for highly nonlinear detector response for recoiling germanium nuclei, we have constructed consistent empirical physical formulas (EPFs) by appropriate layered feed-forward neural networks (LFNNs). These LFNN-EPFs can be used to derive further physical functions which could be relevant to determination of neutron interactions in gamma-ray tracking process.

  11. SELF-CONSISTENT ION CYCLOTRON ANISOTROPY-BETA RELATION FOR SOLAR WIND PROTONS

    SciTech Connect (OSTI)

    Isenberg, Philip A. [Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH 03824 (United States); Maruca, Bennett A. [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States); Kasper, Justin C., E-mail: phil.isenberg@unh.edu, E-mail: bmaruca@ssl.berkeley.edu, E-mail: jkasper@cfa.harvard.edu [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)

    2013-08-20T23:59:59.000Z

    We derive a set of self-consistent marginally stable states for a system of ion-cyclotron waves propagating parallel to the large-scale magnetic field through a homogeneous proton-electron plasma. The proton distributions and the wave dispersions are related through the condition that no further ion-cyclotron resonant particle scattering or wave growth/damping may take place. The thermal anisotropy of the protons in these states therefore defines the threshold value for triggering the proton-cyclotron anisotropy instability. A number of recent papers have noted that the anisotropy of solar wind protons at 1 AU does not seem to be limited by the proton-cyclotron anisotropy threshold, even at low plasma beta. However, this puzzle seems to be due solely to the estimation of this anisotropy threshold under the assumption that the protons have a bi-Maxwellian distribution. We note that bi-Maxwellian distributions are never marginally stable to the resonant cyclotron interaction, so these estimates do not represent physically valid thresholds. The threshold anisotropies obtained from our marginally stable states are much larger, as a function of proton parallel beta, than the bi-Maxwellian estimates, and we show that the measured data remains below these more rigorous thresholds. Thus, the results of this paper resolve the apparent contradiction presented by the solar wind anisotropy observations at 1 AU: the bi-Maxwellian anisotropies are not rigorous thresholds, and so do not limit the proton distributions in the solar wind.

  12. Product consistency leach tests of Savannah River Site radioactive waste glasses

    SciTech Connect (OSTI)

    Bibler, N.E. (Westinghouse Savannah River Co., Aiken, SC (United States)); Bates, J.K. (Argonne National Lab., IL (United States))

    1989-01-01T23:59:59.000Z

    The Product Consistency Test (PCT) is a glass leach test that was developed at the Savannah River Site (SRS) to routinely confirm the durability of nuclear waste glasses that will be produced in the Defense Waste Processing Facility. The PCT is a 7 day, crushed glass leach test in deionized water at 90{degree}C. Final leachates are filtered and acidified prior to analysis. To demonstrate the reproducibility of the PCT when performed remotely, SRS and Argonne National Laboratory have performed the PCT on samples of two radioactive glasses. The tests were also performed to compare the releases of the radionuclides with the major nonradioactive glass components and to determine if radiation from the glass was affecting the results of the PCT. The test was performed in triplicate at each laboratory. For the major soluble elements, B, Li, Na, and Si, in the glass, each investigator obtained relative precisions in the range 2--5% in the triplicate tests. This range indicates good precision for the PCT when performed remotely with master slave manipulators in a shielded cell environment.

  13. Self-Consistent Screening Approximation for Flexible Membranes: Application to Graphene

    E-Print Network [OSTI]

    K. V. Zakharchenko; R. Roldan; A. Fasolino; M. I. Katsnelson

    2010-09-20T23:59:59.000Z

    Crystalline membranes at finite temperatures have an anomalous behavior of the bending rigidity that makes them more rigid in the long wavelength limit. This issue is particularly relevant for applications of graphene in nano- and micro-electromechanical systems. We calculate numerically the height-height correlation function $G(q)$ of crystalline two-dimensional membranes, determining the renormalized bending rigidity, in the range of wavevectors $q$ from $10^{-7}$ \\AA$^{-1}$ till 10 \\AA$^{-1}$ in the self-consistent screening approximation (SCSA). For parameters appropriate to graphene, the calculated correlation function agrees reasonably with the results of atomistic Monte Carlo simulations for this material within the range of $q$ from $10^{-2}$ \\AA$^{-1}$ till 1 \\AA$^{-1}$. In the limit $q\\rightarrow 0$ our data for the exponent $\\eta$ of the renormalized bending rigidity $\\kappa_R(q)\\propto q^{-\\eta}$ is compatible with the previously known analytical results for the SCSA $\\eta\\simeq 0.82$. However, this limit appears to be reached only for $q<10^{-5}$ \\AA$^{-1}$ whereas at intermediate $q$ the behavior of $G(q)$ cannot be described by a single exponent.

  14. Morphology diagrams for A2B copolymer melts: real-space self-consistent field theory

    SciTech Connect (OSTI)

    Kumar, Rajeev [ORNL; Sides, Scott [ORNL; Mays, Jimmy [ORNL; Li, Yige [ORNL; Sumpter, Bobby G [ORNL

    2012-01-01T23:59:59.000Z

    Morphology diagrams for A2B copolymer melts are constructed using real-space self-consistent field theory (SCFT). In particular, the effect of architectural asymmetry on the morphology diagram is studied. It is shown that asymmetry in the lengths of A arms in the A2B copolymer melts aids in the microphase separation. As a result, the disorder-order transition boundaries for the A2B copolymer melts are shown to shift downward in terms of N, and N being the Flory s chi parameter and the total number of the Kuhn segments,respectively, in comparison with the A2B copolymers containing symmetric A arms. Furthermore, perforated lamellar (PL) and a micelle-like (M) microphase segregated morphologies are found to compete with the classical morphologies namely, lamellar, cylinders, spheres and gyroid. The PL morphology is found to be stable for A2B copolymers containing asymmetric A arms and M is found to be metastable for the parameter range explored in this work.

  15. New Embolization Microcoil Consisting of Firm and Flexible Segments: Preliminary Clinical Experience

    SciTech Connect (OSTI)

    Irie, Toshiyuki [Hitachi General Hospital, Department of Radiology (Japan)], E-mail: toshiyuki.irie@ibabyo.hitachi.co.jp

    2006-12-15T23:59:59.000Z

    Purpose. To describe the preliminary clinical experience with a new embolization microcoil. Methods. The microcoil was made of a platinum coil spring, and consisted of firm and flexible segments. The firm segment functioned as an anchor and the flexible segment was well compacted to occlude the arteries. No Dacron fiber was attached. Seventy-one new microcoils were placed via microcatheters in 28 visceral arteries of 17 patients. Two other types of microcoils with Dacron fibers were used together in 8 arteries. Results. Sixty-nine new microcoils were placed and compacted successfully. Two coils were misplaced; one was retrieved and the other was left in the migrated artery, which remained patent 5 months later. All 28 arteries were occluded, and the goals of intervention were achieved successfully in all 17 cases. Conclusion. The new microcoils anchored and compacted well in the arteries. The clinical feasibility of this coil design was confirmed. The additional use of other types of microcoils with Dacron fiber was necessary to obtain rapid occlusion in some cases.

  16. Effective Hamiltonian Constraint from Group Field Theory

    E-Print Network [OSTI]

    Etera R. Livine; Daniele Oriti; James P. Ryan

    2011-04-28T23:59:59.000Z

    Spinfoam models provide a covariant formulation of the dynamics of loop quantum gravity. They are non-perturbatively defined in the group field theory (GFT) framework: the GFT partition function defines the sum of spinfoam transition amplitudes over all possible (discretized) geometries and topologies. The issue remains, however, of explicitly relating the specific form of the group field theory action and the canonical Hamiltonian constraint. Here, we suggest an avenue for addressing this issue. Our strategy is to expand group field theories around non-trivial classical solutions and to interpret the induced quadratic kinematical term as defining a Hamiltonian constraint on the group field and thus on spin network wave functions. We apply our procedure to Boulatov group field theory for 3d Riemannian gravity. Finally, we discuss the relevance of understanding the spectrum of this Hamiltonian operator for the renormalization of group field theories.

  17. Automatic identification of abstract online groups

    DOE Patents [OSTI]

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

    2014-04-15T23:59:59.000Z

    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.

  18. USD Catalysis Group for Alternative Energy

    SciTech Connect (OSTI)

    James D. Hoefelmeyer, Ranjit Koodali, Grigoriy Sereda, Dan Engebretson, Hao Fong, Jan Puszynski, Rajesh Shende, Phil Ahrenkiel

    2012-03-13T23:59:59.000Z

    The South Dakota Catalysis Group (SDCG) is a collaborative project with mission to develop advanced catalysts for energy conversion with two primary goals: (1) develop photocatalytic systems in which polyfunctionalized TiO2 are the basis for hydrogen/oxygen synthesis from water and sunlight (solar fuels group), (2) develop new materials for hydrogen utilization in fuel cells (fuel cell group). In tandem, these technologies complete a closed chemical cycle with zero emissions.

  19. Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same

    DOE Patents [OSTI]

    Comanzo, Holly Ann; Setlur, Anant Achyut; Srivastava, Alok Mani

    2006-04-04T23:59:59.000Z

    Europium-activated phosphors comprise oxides of at least a rare-earth metal selected from the group consisting of gadolinium, yttrium, lanthanum, and combinations thereof and at least a Group-IIIB metal selected from the group consisting of aluminum, gallium, indium, and combinations thereof. A method for making such phosphors comprises adding at least a halide of at least one of the selected Group-IIIB metals in a starting mixture. The method further comprises firing the starting mixture in an oxygen-containing atmosphere. The phosphors produced by such a method exhibit improved absorption in the UV wavelength range and improved quantum efficiency.

  20. Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same

    DOE Patents [OSTI]

    Comanzo, Holly Ann; Setlur, Anant Achyut; Srivastava, Alok Mani; Manivannan, Venkatesan

    2004-07-13T23:59:59.000Z

    Europium-activated phosphors comprise oxides of at least a rare-earth metal selected from the group consisting of gadolinium, yttrium, lanthanum, and combinations thereof and at least a Group-IIIB metal selected from the group consisting of aluminum, gallium, indium, and combinations thereof. A method for making such phosphors comprises adding at least a halide of at least one of the selected Group-IIIB metals in a starting mixture. The method further comprises firing the starting mixture in an oxygen-containing atmosphere. The phosphors produced by such a method exhibit improved absorption in the UV wavelength range and improved quantum efficiency.

  1. Federal Utility Partnership Working Group Participants

    Broader source: Energy.gov [DOE]

    The following Federal agencies have participated in the Federal Utility Partnership Working Group or engaged in a utility energy service contract project.

  2. Distributed Energy Systems Integration Group (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-10-01T23:59:59.000Z

    Factsheet developed to describe the activites of the Distributed Energy Systems Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

  3. Joint Outreach Task Group Calendar: September 2013

    Broader source: Energy.gov [DOE]

    Joint Outreach Task Group (JOTG)has created a monthly calendar of community events to facilitate interagency and community involvement in these events. September 2013

  4. . . . . . 85 . . . . . International Deep Drawing Research Group

    E-Print Network [OSTI]

    . . . . . 85 . . . . . International Deep Drawing Research Group IDDRG 2009 International 20899-855 USA e-mail: mark.iadicola@nist.gov, Web page: www

  5. More about Permutations and Symmetry Groups

    E-Print Network [OSTI]

    Donu Arapura

    2013-04-03T23:59:59.000Z

    Page 1 ... groups than what we did previously. First recall that a ... The most efficient notation is cycle notation, which we will explain. ... Now repeat for numbers ...

  6. Convolution type operators on locally compact groups

    E-Print Network [OSTI]

    Shtein--~erg, Convolution Type Operators on Locally Compact Groups [in Russian],. Manuscript Deposited in the All-Union Institute of Scientific and Technical ...

  7. Clark Energy Group ESCO Qualification Sheet

    Broader source: Energy.gov [DOE]

    Document outlines the energy service company (ESCO) qualifications for Clark Energy Group in relation to the U.S. Department of Energy's (DOEs) energy savings performance contracts (ESPC).

  8. Enforcement Letter, Parsons Infrastructure & Technology Group...

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

    and Technology Group, Inc. related to a form wood timber fire caused by nearby propane heaters during construction of the Salt Waste Processing Facility at DOE's Savannah...

  9. Federal Utility Partnership Working Group Utility Partners

    Broader source: Energy.gov [DOE]

    Federal Utility Partnership Working Group (FUPWG) utility partners are eager to work closely with Federal agencies to help achieve energy management goals.

  10. Federal Utility Partnership Working Group Industry Commitment...

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

    Industry Commitment Federal Utility Partnership Working Group Industry Commitment Investor-owned electric utility industry members of the Edison Electric Institute pledge to assist...

  11. Group 3: Humidity, Temperature, and Voltage (Presentation)

    SciTech Connect (OSTI)

    Wohlgemuth, J.

    2013-05-01T23:59:59.000Z

    Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

  12. Group-theoretical approach to reflectionless potentials

    SciTech Connect (OSTI)

    Kerimov, G. A.; Ventura, A. [International Centre for Physics and Applied Mathematics, Trakya University, 22050 Edirne (Turkey); Ente Nuove Tecnologie, Energia e Ambiente and Istituto Nazionale di Fisica Nucleare, Bologna (Italy)

    2006-08-15T23:59:59.000Z

    We examine the general form of potentials with zero reflection coefficient in one-dimensional Hamiltonians connected with Casimir invariants of non-compact groups.

  13. Institut Eurecom1 Institut Eurecom research is partially supported by its industrial members: BMW Group Research & Technology BMW Group

    E-Print Network [OSTI]

    Gesbert, David

    : BMW Group Research & Technology ­ BMW Group Company, Bouygues Telecom, Cisco Systems, France Telecom

  14. Consistency Tests of Classical and Quantum Models for a Quantum Annealer

    E-Print Network [OSTI]

    Tameem Albash; Walter Vinci; Anurag Mishra; Paul A. Warburton; Daniel A. Lidar

    2015-04-13T23:59:59.000Z

    Recently the question of whether the D-Wave processors exhibit large-scale quantum behavior or can be described by a classical model has attracted significant interest. In this work we address this question by studying a 503 qubit D-Wave Two device in the "black box" model, i.e., by studying its input-output behavior. Our work generalizes an approach introduced in Boixo et al. [Nat. Commun. 4, 2067 (2013)], and uses groups of up to 20 qubits to realize a transverse Ising model evolution with a ground state degeneracy whose distribution acts as a sensitive probe that distinguishes classical and quantum models for the D-Wave device. Our findings rule out all classical models proposed to date for the device and provide evidence that an open system quantum dynamical description of the device that starts from a quantized energy level structure is well justified, even in the presence of relevant thermal excitations and a small value of the ratio of the single-qubit decoherence time to the annealing time.

  15. GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSILICATE FRIT B COMPOSITION FOR PLUTONIUM DISPOSITION

    SciTech Connect (OSTI)

    Marra, J

    2006-01-19T23:59:59.000Z

    The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) to disposition excess weapons-usable plutonium. A plutonium glass waste form is a leading candidate for immobilization of the plutonium for subsequent disposition in a geologic repository. A reference glass composition (Lanthanide Borosilicate (LaBS) Frit B) was developed during the Plutonium Immobilization Program (PIP) to immobilize plutonium. A limited amount of performance testing was performed on this baseline composition before efforts to further pursue Pu disposition via a glass waste form ceased. Therefore, the objectives of this present task were to fabricate plutonium loaded LaBS Frit B glass and perform additional testing to provide near-term data that will increase confidence that LaBS glass product is suitable for disposal in the Yucca Mountain Repository. Specifically, testing was conducted in an effort to provide data to Yucca Mountain Project (YMP) personnel for use in performance assessment calculations. Plutonium containing LaBS glass with the Frit B composition with a 9.5 wt% PuO{sub 2} loading was prepared for testing. Glass was prepared to support Product Consistency Testing (PCT) at Savannah River National Laboratory (SRNL) and for additional performance testing at Argonne National Laboratory (ANL) and Pacific Northwest National Laboratory (PNNL). The glass was characterized using x-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS) prior to performance testing. A series of PCTs were conducted at SRNL with varying exposed surface area and test durations. The leachates from these tests were analyzed to determine the dissolved concentrations of key elements. Acid stripping of leach vessels was performed to determine the concentration of the glass constituents that may have sorbed on the vessels during leach testing. Additionally, the leachate solutions were ultrafiltered to quantify colloid formation. The leached solids from select PCTs were examined in an attempt to evaluate the Pu and neutron absorber release behavior from the glass and to identify the formation of alteration phases on the glass surface. Characterization of the glass prior to testing revealed that some undissolved plutonium oxide was present in the glass. The undissolved particles had a disk-like morphology and likely formed via coarsening of particles in areas compositionally enriched in plutonium. Similar disk-like PuO{sub 2} phases were observed in previous LaBS glass testing at PNNL. In that work, researchers concluded that plutonium formed with this morphology as a result of the leaching process. It was more likely that the presence of the plutonium oxide crystals in the PNNL testing was a result of glass fabrication. A series of PCTs were conducted at 90 C in ASTM Type 1 water. The PCT-Method A (PCT-A) was conducted to compare the Pu LaBS Frit B glass durability to current requirements for High Level Waste (HLW) glass in a geologic repository. The PCT-A test has a strict protocol and is designed to specifically be used to evaluate whether the chemical durability and elemental release characteristics of a nuclear waste glass have been consistently controlled during production and, thus, meet the repository acceptance requirements. The PCT-A results on the Pu containing LaBS Frit B glass showed that the glass was very durable with a normalized elemental release value for boron of approximately 0.02 g/L. This boron release value was better than two orders of magnitude better from a boron release standpoint than the current Environmental Assessment (EA) glass used for repository acceptance. The boron release value for EA glass is 16.7 g/L.

  16. Self-consistent modeling of radio-frequency plasma generation in stellarators

    SciTech Connect (OSTI)

    Moiseenko, V. E., E-mail: moiseenk@ipp.kharkov.ua; Stadnik, Yu. S., E-mail: stadnikys@kipt.kharkov.ua [National Academy of Sciences of Ukraine, National Science Center Kharkov Institute of Physics and Technology (Ukraine); Lysoivan, A. I., E-mail: a.lyssoivan@fz-juelich.de [Royal Military Academy, EURATOM-Belgian State Association, Laboratory for Plasma Physics (Belgium); Korovin, V. B. [National Academy of Sciences of Ukraine, National Science Center Kharkov Institute of Physics and Technology (Ukraine)] [National Academy of Sciences of Ukraine, National Science Center Kharkov Institute of Physics and Technology (Ukraine)

    2013-11-15T23:59:59.000Z

    A self-consistent model of radio-frequency (RF) plasma generation in stellarators in the ion cyclotron frequency range is described. The model includes equations for the particle and energy balance and boundary conditions for Maxwell’s equations. The equation of charged particle balance takes into account the influx of particles due to ionization and their loss via diffusion and convection. The equation of electron energy balance takes into account the RF heating power source, as well as energy losses due to the excitation and electron-impact ionization of gas atoms, energy exchange via Coulomb collisions, and plasma heat conduction. The deposited RF power is calculated by solving the boundary problem for Maxwell’s equations. When describing the dissipation of the energy of the RF field, collisional absorption and Landau damping are taken into account. At each time step, Maxwell’s equations are solved for the current profiles of the plasma density and plasma temperature. The calculations are performed for a cylindrical plasma. The plasma is assumed to be axisymmetric and homogeneous along the plasma column. The system of balance equations is solved using the Crank-Nicholson scheme. Maxwell’s equations are solved in a one-dimensional approximation by using the Fourier transformation along the azimuthal and longitudinal coordinates. Results of simulations of RF plasma generation in the Uragan-2M stellarator by using a frame antenna operating at frequencies lower than the ion cyclotron frequency are presented. The calculations show that the slow wave generated by the antenna is efficiently absorbed at the periphery of the plasma column, due to which only a small fraction of the input power reaches the confinement region. As a result, the temperature on the axis of the plasma column remains low, whereas at the periphery it is substantially higher. This leads to strong absorption of the RF field at the periphery via the Landau mechanism.

  17. The electrorheology of suspensions consisting of Na-Fluorohectorite synthetic clay particles in silicon oil

    E-Print Network [OSTI]

    Y. Méheust; K. P. S. Parmar; B. Schjelderupsen; J. O. Fossum

    2010-02-01T23:59:59.000Z

    Under application of an electric field greater than a triggering electric field $E_c \\sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like structures parallel to the applied electric field. This micro-structuring results in a transition in the suspensions' rheological behavior, from a Newtonian-like behavior to a shear-thinning rheology with a significant yield stress. This behavior is studied as a function of particle volume fraction and strength of the applied electric field, $E$. The steady shear flow curves are observed to scale onto a master curve with respect to $E$, in a manner similar to what was recently found for suspensions of laponite clay [42]. In the case of Na-fluorohectorite, the corresponding dynamic yield stress is demonstrated to scale with respect to $E$ as a power law with an exponent $\\alpha \\sim 1.93$, while the static yield stress inferred from constant shear stress tests exhibits a similar behavior with $\\alpha \\sim 1.58$. The suspensions are also studied in the framework of thixotropic fluids: the bifurcation in the rheology behavior when letting the system flow and evolve under a constant applied shear stress is characterized, and a bifurcation yield stress, estimated as the applied shear stress at which viscosity bifurcation occurs, is measured to scale as $E^\\alpha$ with $\\alpha \\sim 0.5$ to 0.6. All measured yield stresses increase with the particle fraction $\\Phi$ of the suspension. For the static yield stress, a scaling law $\\Phi^\\beta$, with $\\beta = 0.54$, is found. The results are found to be reasonably consistent with each other. Their similarities with-, and discrepancies to- results obtained on laponite-oil suspensions are discussed.

  18. LIKELY MEMBERS OF THE {beta} PICTORIS AND AB DORADUS MOVING GROUPS IN THE NORTH

    SciTech Connect (OSTI)

    Schlieder, Joshua E. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Lepine, Sebastien [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 (United States); Simon, Michal, E-mail: schlieder@mpia-hd.mpg.de, E-mail: michal.simon@stonybrook.edu, E-mail: lepine@amnh.org [Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794 (United States)

    2012-10-01T23:59:59.000Z

    We present first results from follow-up of targets in the northern hemisphere {beta} Pictoris and AB Doradus moving group candidate list of Schlieder et al. We obtained high-resolution, near-infrared spectra of 27 candidate members to measure their radial velocities and confirm consistent group kinematics. We identify 15 candidates with consistent predicted and measured radial velocities, perform analyses of their six-dimensional (UVWXYZ) Galactic kinematics, and compare to known group member distributions. Based on these analyses, we propose that seven {beta} Pic and eight AB Dor candidates are likely new group members. Four of the likely new {beta} Pic stars are binaries, one a double-lined spectroscopic system. Three of the proposed AB Dor stars are binaries. Counting all binary components, we propose 22 likely members of these young, moving groups. The majority of the proposed members are M2 to M5 dwarfs, the earliest being of type K2. We also present preliminary parameters for the two new spectroscopic binaries identified in the data, the proposed {beta} Pic member and a rejected {beta} Pic candidate. Our candidate selection and follow-up has thus far identified more than 40 low-mass, likely members of these two moving groups. These stars provide a new sample of nearby, young targets for studies of local star formation, disks and exoplanets via direct imaging, and astrophysics in the low-mass regime.

  19. hat does a group of 30 "sustainabil-

    E-Print Network [OSTI]

    Handy, Susan L.

    hat does a group of 30 "sustainabil- ity" professionals do when they run into a pair of two's greenest athledc facility. The group includes planners, environmental and sustainability directors a testament to humanity's constant threat to biodiversity. Eight pairs of sparrows were first released

  20. 1Nanomaterials for Energy Group Byungwoo Park

    E-Print Network [OSTI]

    Cho, Jaephil

    Fuel Cell Solar Panel Portable Devices Solar Cell Phosphor Li+ Battery #12;4Nanomaterials for Energy://bp.snu.ac.kr Cutting-Edge Nanomaterials for Energy: Solar Cell · Li+ Battery #12;2Nanomaterials for Energy Group- Sensitized Solar Cells DSSC SONY DSSC KIST #12;6Nanomaterials for Energy Group e-e- h

  1. University of Paderborn Software Engineering Group

    E-Print Network [OSTI]

    Kindler, Ekkart

    University of Paderborn Software Engineering Group 1 Subversion Configuration with Eclipse Softwaretechnikpraktikum 2006 #12;University of Paderborn Software Engineering Group 2 Installing SubclipseInstalling Subclipse Find and install new feature Use the Subclipse update site #12;University of Paderborn Software

  2. Fusion Technology Working Group Presented by

    E-Print Network [OSTI]

    Abdou, Mohamed

    Snowmass Fusion Technology Working Group Summary Presented by M. Abdou, S. Milora Snowmass July 23, 1999 #12;Technology Working Group Subgroup # 1 Subgroup # 2 Solid Walls Ulrickson / Mattas Liquid Walls / Ying Chamber Technology Abdou / Ulrickson Heating/CD/Fueling Swain / Temkin Magnets Schultz / Woolley

  3. THREE THEOREMS ON LINEAR GROUPS BOGDAN NICA

    E-Print Network [OSTI]

    Nica, Bogdan

    1960). A finitely generated linear group over a field of zero characteristic is virtually torsion) a subgroup of GLn(K), where K is a field. If we want to specify the field, we say that the group is linear torsion-free if some finite-index subgroup is torsion-free. As a matter of further termi- nology, Selberg

  4. Terms of Reference Information Security Group

    E-Print Network [OSTI]

    Haase, Markus

    Terms of Reference Information Security Group Version 3.1 8 March 2011 © University of Leeds 2011 Security Group Information Security Management 3.1 (8/3/11) Page 2 of 4 Document Control Owner: Kevin Darley, IT Security Co-ordinator, Information Systems Services, University of Leeds Source Location: V

  5. IY5512: Part 1 Information Security Group

    E-Print Network [OSTI]

    Mitchell, Chris

    IY5512: Part 1 1 Information Security Group IY5512 Computer Security Part 1: Introduction to computer security Chris Mitchell me@chrismitchell.net http://www.chrismitchell.net 1 Information Security) ... 2 Information Security Group Agenda · Overview · Security goals · Security approaches ­ prevention

  6. RENEWABLE ENERGY GROUPS COVET FUSION'S BUDGET

    E-Print Network [OSTI]

    RENEWABLE ENERGY GROUPS COVET FUSION'S BUDGET A group called the Energy Efficiency Education-effective and environmentally sound energy- efficiency and renewable energy programs." Rep. Philip R. Sharp (D-IN) and chair the resolution, H. Con. Res. 188). Sharp said "For too long, cost-effectiveefficiencyand renewable energy

  7. BREAST CANCER GROUP WOMEN'S HEALTH INTERDISCIPLINARY

    E-Print Network [OSTI]

    Spence, Harlan Ernest

    BREAST CANCER GROUP May 2009 WOMEN'S HEALTH INTERDISCIPLINARY RESEARCH CENTER [WHIRC] #12;2 Table: Breast Cancer Research and Treatment 4 Basic/Translational Research Carcinogenesis and Signaling Group 5R) Signaling in Breast Cancer 6 NF-B Family of Transcription Factors in Breast Cancer 7 Transgenic Mouse

  8. Active Learning of Group-Structured Environments

    E-Print Network [OSTI]

    Szepesvari, Csaba

    Active Learning of Group-Structured Environments G´abor Bart´ok, Csaba Szepesv´ari , Sandra Zilles with their environment. We investigate learning environments that have a group structure. We introduce a learning model an environment from partial information is far from trivial. However, positive results for special subclasses

  9. Group 3: Humidity, Temperature and Voltage (Presentation)

    SciTech Connect (OSTI)

    Wohlgemuth, J.

    2013-09-01T23:59:59.000Z

    This is a summary of the work of Group 3 of the International PV QA Task Force. Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

  10. Outrunning major weight gain: a prospective study of 8,340 consistent runners during 7 years of follow-up

    E-Print Network [OSTI]

    Williams, Paul T.

    2008-01-01T23:59:59.000Z

    groups (X-axis) and percentile of weight change (legend).trend going from the smallest to the highest percentile (percentile effect). Brackets designate ±SE.

  11. Hybrid incompatibility is consistent with a hybrid origin of Heliconius heurippa Hewitson from its close relatives, Heliconius

    E-Print Network [OSTI]

    Linares, Mauricio

    los Andes, Bogota´, Colombia Smithsonian Tropical Research Institute, Republica de Panama´ à, NC, USA Introduction In groups of rapidly radiating species, resolution of phylogenetic relationships

  12. GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSILICATE FRIT X COMPOSITION FOR PLUTONIUM DISPOSITION

    SciTech Connect (OSTI)

    Marra, J

    2006-11-15T23:59:59.000Z

    The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) to disposition excess weapons-usable plutonium. A plutonium glass waste form is the preferred option for immobilization of the plutonium for subsequent disposition in a geologic repository. A reference glass composition (Lanthanide Borosilicate (LaBS) Frit B) was developed during the Plutonium Immobilization Program (PIP) to immobilize plutonium in the late 1990's. A limited amount of performance testing was performed on this baseline composition before efforts to further pursue Pu disposition via a glass waste form ceased. Recent FY05 studies have further investigated the LaBS Frit B formulation as well as development of a newer LaBS formulation denoted as LaBS Frit X. The objectives of this present task were to fabricate plutonium loaded LaBS Frit X glass and perform corrosion testing to provide near-term data that will increase confidence that LaBS glass product is suitable for disposal in the Yucca Mountain Repository. Specifically, testing was conducted in an effort to provide data to Yucca Mountain Project (YMP) personnel for use in performance assessment calculations. Plutonium containing LaBS glass with the Frit X composition with a 9.5 wt% PuO{sub 2} loading was prepared for testing. Glass was prepared to support Product Consistency Testing (PCT) at Savannah River National Laboratory (SRNL). The glass was thoroughly characterized using x-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS) prior to performance testing. A series of PCTs were conducted at SRNL using quenched Pu Frit X glass with varying exposed surface areas. Effects of isothermal and can-in-canister heat treatments on the Pu Frit X glass were also investigated. Another series of PCTs were performed on these different heat-treated Pu Frit X glasses. Leachates from all these PCTs were analyzed to determine the dissolved concentrations of key elements. Acid stripping of leach vessels was performed to determine the concentration of the glass constituents that may have sorbed on the vessels during leach testing. Additionally, the leachate solutions were ultrafiltered to quantify colloid formation.

  13. Permutation groups, minimal degrees and quantum computing

    E-Print Network [OSTI]

    Julia Kempe; Laszlo Pyber; Aner Shalev

    2006-07-28T23:59:59.000Z

    We study permutation groups of given minimal degree without the classical primitivity assumption. We provide sharp upper bounds on the order of a permutation group of minimal degree m and on the number of its elements of any given support. These results contribute to the foundations of a non-commutative coding theory. A main application of our results concerns the Hidden Subgroup Problem for the symmetric group in Quantum Computing. We completely characterize the hidden subgroups of the symmetric group that can be distinguished from identity with weak Quantum Fourier Sampling, showing these are exactly the subgroups with bounded minimal degree. This implies that the weak standard method for the symmetric group has no advantage whatsoever over classical exhaustive search.

  14. On perfect order subsets in finite groups

    E-Print Network [OSTI]

    Tuan, Nguyen Trong

    2010-01-01T23:59:59.000Z

    If $G$ is a finite group and $x\\in G$ then the set of all elements of $G$ having the same order as $x$ is called {\\em an order subset of $G$ determined by $x$} (see [2]). We say that $G$ is a {\\em group with perfect order subsets} or briefly, $G$ is a {\\em $POS$-group} if the number of elements in each order subset of $G$ is a divisor of $|G|$. In this paper we prove that for any $n\\geq 4$, the symmetric group $S_n$ is not $POS$-group. This gives the positive answer to one of two questions rising from Conjecture 5.2 in [3].

  15. GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSILICATE GLASS FOR PLUTONIUM DISPOSITION

    SciTech Connect (OSTI)

    Crawford, C; James Marra, J; Ned Bibler, N

    2007-02-12T23:59:59.000Z

    The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) in Aiken, SC, to disposition excess weapons-usable plutonium. A plutonium glass waste form is a leading candidate for immobilization of the plutonium for subsequent disposition in a geologic repository. The objectives of this present task were to fabricate plutonium-loaded lanthanide borosilicate (LaBS) Frit B glass and perform testing to provide near-term data that will increase confidence that LaBS glass product is suitable for disposal in the proposed Federal Repository. Specifically, testing was conducted in an effort to provide data to Yucca Mountain Project (YMP) personnel for use in performance assessment calculations. Plutonium containing LaBS glass with the Frit B composition with a 9.5 wt% PuO{sub 2} loading was prepared for testing. Glass was prepared to support glass durability testing via the ASTM Product Consistency Testing (PCT) at Savannah River National Laboratory (SRNL). The glass was characterized with X-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS) prior to performance testing. This characterization revealed some crystalline PuO{sub 2} inclusions with disk-like morphology present in the as fabricated, quench-cooled glass. A series of PCTs was conducted at SRNL with varying exposed surface area and test durations. Filtered leachates from these tests were analyzed to determine the dissolved concentrations of key elements. The leachate solutions were also ultrafiltered to quantify colloid formation. Leached solids from select PCTs were examined in an attempt to evaluate the Pu and neutron absorber release behavior from the glass and to investigate formation of alteration phases on the glass surface. A series of PCTs was conducted at 90 C in ASTM Type 1 water to compare the Pu LaBS Frit B glass durability to current requirements for High Level Waste (HLW) glass in a geologic repository. The PCT (7-day static test with powdered glass) results on the Pu-containing LaBS Frit B glass at SA/V of {approx} 2000 m{sup -1} showed that the glass was very durable with an average normalized elemental release value for boron of 0.013 g/m{sup 2}. This boron release value is {approx} 640X lower than normalized boron release from current Environmental Assessment (EA) glass used for repository acceptance. The PCT-B (7, 14, 28 and 56-day, static test with powdered glass) normalized elemental releases were similar to the normalized elemental release values from PCT-A testing, indicating that the LaBS Frit B glass is very durable as measured by the PCT. Normalized plutonium releases were essentially the same within the analytical uncertainty of the ICP-MS methods used to quantify plutonium in the 0.45 {micro}m-filtered leachates and ultra-filtered leachates, indicating that colloidal plutonium species do not form under the PCT conditions used in this study.

  16. GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSHILICATE FRIT X COMPOSITION FOR PLUTONIUM DISPOSITION

    SciTech Connect (OSTI)

    Marra, J

    2006-11-21T23:59:59.000Z

    The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) to disposition excess weapons-usable plutonium. A plutonium glass waste form is the preferred option for immobilization of the plutonium for subsequent disposition in a geologic repository. A reference glass composition (Lanthanide Borosilicate (LaBS) Frit B) was developed during the Plutonium Immobilization Program (PIP) to immobilize plutonium in the late 1990's. A limited amount of performance testing was performed on this baseline composition before efforts to further pursue Pu disposition via a glass waste form ceased. Recent FY05 studies have further investigated the LaBS Frit B formulation as well as development of a newer LaBS formulation denoted as LaBS Frit X. The objectives of this present task were to fabricate plutonium loaded LaBS Frit X glass and perform corrosion testing to provide near-term data that will increase confidence that LaBS glass product is suitable for disposal in the Yucca Mountain Repository. Specifically, testing was conducted in an effort to provide data to Yucca Mountain Project (YMP) personnel for use in performance assessment calculations. Plutonium containing LaBS glass with the Frit X composition with a 9.5 wt% PuO{sub 2} loading was prepared for testing. Glass was prepared to support Product Consistency Testing (PCT) at Savannah River National Laboratory (SRNL). The glass was thoroughly characterized using x-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS) prior to performance testing. A series of PCTs were conducted at SRNL using quenched Pu Frit X glass with varying exposed surface areas. Effects of isothermal and can-in-canister heat treatments on the Pu Frit X glass were also investigated. Another series of PCTs were performed on these different heat-treated Pu Frit X glasses. Leachates from all these PCTs were analyzed to determine the dissolved concentrations of key elements. Acid stripping of leach vessels was performed to determine the concentration of the glass constituents that may have sorbed on the vessels during leach testing. Additionally, the leachate solutions were ultrafiltered to quantify colloid formation. Characterization of the quenched Pu Frit X glass prior to testing revealed that some crystalline plutonium oxide was present in the glass. The crystalline particles had a disklike morphology and likely formed via coarsening of particles in areas compositionally enriched in plutonium. Similar results had also been observed in previous Pu Frit B studies. Isothermal 1250 C heat-treated Pu Frit X glasses showed two different crystalline phases (PuO{sub 2} and Nd{sub 2}Hf{sub 2}O{sub 7}), as well as a peak shift in the XRD spectra that is likely due to a solid solution phase PuO{sub 2}-HfO{sub 2} formation. Micrographs of this glass showed a clustering of some of the crystalline phases. Pu Frit X glass subjected to the can-in-canister heating profile also displayed the two PuO{sub 2} and Nd{sub 2}Hf{sub 2}O{sub 7} phases from XRD analysis. Additional micrographs indicate crystalline phases in this glass were of varying forms (a spherical PuO{sub 2} phase that appeared to range in size from submicron to {approx}5 micron, a dendritic-type phase that was comprised of mixed lanthanides and plutonium, and a minor phase that contained Pu and Hf), and clustering of the phases was also observed.

  17. Taxonomy of Clifford Cl_{3,0} subgroups: Choir and band groups

    E-Print Network [OSTI]

    Quirino M. Sugon Jr.; Daniel J. McNamara

    2008-09-02T23:59:59.000Z

    We list the subgroups of the basis set of Cl_{3,0} and classify them according to three criteria for construction of universal Clifford algebras: (1) each generator squares to +1 or -1, (2) the generators within the group anticommute, and (3) the order of the resulting group is 2^{n+1}, where n is the number of nontrivial generators. Obedient groups we call choirs; disobedient groups, bands. We classify choirs by modes and bands by rhythms, based on canonical equality. Each band generator has a transposition (number of other generators it commutes with). The band's transposition signature is the band's chord. The sum of transpositions divided by twice the number of generator pair combinations is the band's beat. The band's order deviation is the band's disorder. For n less than or equal 3, we show that the Cl_{3,0} basis set has 21 non-isomorphic subgroups consisting of 9 choirs and 12 bands.

  18. Unitary reflection groups for quantum fault tolerance

    E-Print Network [OSTI]

    Michel Planat; Maurice R. Kibler

    2009-02-24T23:59:59.000Z

    This paper explores the representation of quantum computing in terms of unitary reflections (unitary transformations that leave invariant a hyperplane of a vector space). The symmetries of qubit systems are found to be supported by Euclidean real reflections (i.e., Coxeter groups) or by specific imprimitive reflection groups, introduced (but not named) in a recent paper [Planat M and Jorrand Ph 2008, {\\it J Phys A: Math Theor} {\\bf 41}, 182001]. The automorphisms of multiple qubit systems are found to relate to some Clifford operations once the corresponding group of reflections is identified. For a short list, one may point out the Coxeter systems of type $B_3$ and $G_2$ (for single qubits), $D_5$ and $A_4$ (for two qubits), $E_7$ and $E_6$ (for three qubits), the complex reflection groups $G(2^l,2,5)$ and groups No 9 and 31 in the Shephard-Todd list. The relevant fault tolerant subsets of the Clifford groups (the Bell groups) are generated by the Hadamard gate, the $\\pi/4$ phase gate and an entangling (braid) gate [Kauffman L H and Lomonaco S J 2004 {\\it New J. of Phys.} {\\bf 6}, 134]. Links to the topological view of quantum computing, the lattice approach and the geometry of smooth cubic surfaces are discussed.

  19. Unitary reflection groups for quantum fault tolerance

    E-Print Network [OSTI]

    Planat, Michel

    2008-01-01T23:59:59.000Z

    This paper explores the representation of quantum computing in terms of unitary reflections (unitary transformations that leaves invariant a hyperplane of a vector space). The symmetries of qubit systems are found to be supported by Euclidean real reflections (i.e., Coxeter groups) or by specific imprimitive reflection groups, introduced (but not named) in a recent paper [Planat M and Jorrand Ph 2008, J Phys A: Math Theor 41, 182001]. The automorphisms of multiple qubit systems are found to relate to some Clifford operations once the corresponding group of reflections is identified. For a short list, one may point out the Coxeter systems of type B3 and G2 (for single qubits), D5 and A4 (for two qubits), E7 and E6 (for three qubits), and the complex reflection groups G(2l, 2, 5). The relevant fault tolerant groups of reflections (the Bell groups) are generated, as subgroups of the Clifford groups, by the Hadamard gate, the $\\pi$/4 phase gate and an entangling (braid) gate [Kauffman L H and Lomonaco S J 2004 Ne...

  20. D-branes on group manifolds and fusion rings

    E-Print Network [OSTI]

    P. Bouwknegt; P. Dawson; D. Ridout

    2002-10-31T23:59:59.000Z

    In this paper we compute the charge group for symmetry preserving D-branes on group manifolds for all simple, simply-connected, connected compact Lie groups G.

  1. Group action in topos quantum physics

    SciTech Connect (OSTI)

    Flori, C. [Perimeter Institute for Theoretical Physics, 31 Caroline Street N, Waterloo, Ontario N2L 2Y5 (Canada)] [Perimeter Institute for Theoretical Physics, 31 Caroline Street N, Waterloo, Ontario N2L 2Y5 (Canada)

    2013-03-15T23:59:59.000Z

    Topos theory has been suggested first by Isham and Butterfield, and then by Isham and Doering, as an alternative mathematical structure within which to formulate physical theories. In particular, it has been used to reformulate standard quantum mechanics in such a way that a novel type of logic is used to represent propositions. In this paper, we extend this formulation to include the notion of a group and group transformation in such a way that we overcome the problem of twisted presheaves. In order to implement this we need to change the type of topos involved, so as to render the notion of continuity of the group action meaningful.

  2. Topological Quantum Hashing with the Icosahedral Group

    SciTech Connect (OSTI)

    Burrello, Michele [International School for Advanced Studies (SISSA), Via Beirut 2-4, I-34014 Trieste (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (Italy); Xu Haitan [Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027 (China); Mussardo, Giuseppe [International School for Advanced Studies (SISSA), Via Beirut 2-4, I-34014 Trieste (Italy); International Centre for Theoretical Physics (ICTP), I-34014 Trieste (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (Italy); Wan Xin [Asia Pacific Center for Theoretical Physics (APCTP), Pohang, Gyeongbuk 790-784 (Korea, Republic of); Department of Physics, Pohang University of Science and Technology, Pohang, Gyeongbuk 790-784 (Korea, Republic of); Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027 (China)

    2010-04-23T23:59:59.000Z

    We study an efficient algorithm to hash any single-qubit gate into a braid of Fibonacci anyons represented by a product of icosahedral group elements. By representing the group elements by braid segments of different lengths, we introduce a series of pseudogroups. Joining these braid segments in a renormalization group fashion, we obtain a Gaussian unitary ensemble of random-matrix representations of braids. With braids of length O(log{sup 2}(1/{epsilon})), we can approximate all SU(2) matrices to an average error {epsilon} with a cost of O(log(1/{epsilon})) in time. The algorithm is applicable to generic quantum compiling.

  3. Hunton Group core workshop and field trip

    SciTech Connect (OSTI)

    Johnson, K.S. [ed.

    1993-12-31T23:59:59.000Z

    The Late Ordovician-Silurian-Devonian Hunton Group is a moderately thick sequence of shallow-marine carbonates deposited on the south edge of the North American craton. This rock unit is a major target for petroleum exploration and reservoir development in the southern Midcontinent. The workshop described here was held to display cores, outcrop samples, and other reservoir-characterization studies of the Hunton Group and equivalent strata throughout the region. A field trip was organized to complement the workshop by allowing examination of excellent outcrops of the Hunton Group of the Arbuckle Mountains.

  4. Spinning Fluids: A Group Theoretical Approach

    E-Print Network [OSTI]

    Dario Capasso; Debajyoti Sarkar

    2014-04-07T23:59:59.000Z

    We extend the Lagrangian formulation of relativistic non-abelian fluids in group theory language. We propose a Mathisson-Papapetrou equation for spinning fluids in terms of the reduction limit of de Sitter group. The equation we find correctly boils down to the one for non-spinning fluids. We study the application of our results for an FRW cosmological background for fluids with no vorticity and for dusts in the vicinity of a Kerr black hole. We also explore two alternative approaches based on a group theoretical formulation of particles dynamics.

  5. Lu an Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu an Group Jump to: navigation, search Name: Lu'an Group Place:

  6. Working Group 5 Applying Mathematics in Realistic Situations Group Leaders: Ivan Meznik & Enrica Lemut

    E-Print Network [OSTI]

    Spagnolo, Filippo

    Working Group 5 ­ Applying Mathematics in Realistic Situations Group Leaders: Ivan Meznik & Enrica Lemut Seven papers have been presented and discussed out of the 9 announced and the 8 included people presenting a contribution participated to all the Working Group sessions; also other people

  7. Proceedings of the IEA Working Group meeting on ferritic/martensitic steels

    SciTech Connect (OSTI)

    Klueh, R.L.

    1996-12-31T23:59:59.000Z

    An IEA working group on ferritic/martensitic steels for fusion applications, consisting of researchers from Japan, European Union, USA, and Switzerland, met at the headquarters of the Joint European Torus, Culham, UK. At the meeting, preliminary data generated on the large heats of steels purchased for the IEA program and on other heats of steels were presented and discussed. Second purpose of the meeting was to continue planning and coordinating the collaborative test program in progress on reduced-activation ferritic/martensitic steels. The majority of this report consists of viewographs for the presentations.

  8. Effect of shot type, task difficulty and research environment on consistency of pre-performance routines in golf 

    E-Print Network [OSTI]

    Cotterill, Stewart T

    2007-01-01T23:59:59.000Z

    Golfers have been encouraged to develop consistent pre-performance routines (PPRs) in order to enhance their performance. However, the theoretical underpinning of these recommendations is unclear. Issues relating to the ...

  9. On the consistency of magnetic field measurements of Ap stars: lessons learned from the FORS1 archive

    E-Print Network [OSTI]

    Landstreet, J D; Fossati, L

    2014-01-01T23:59:59.000Z

    CONTEXT. The ESO archive of FORS1 spectropolarimetric observations may be used to create a homogeneous database of magnetic field measurements. However, no systematic comparison of FORS field measurements to those obtained with other instruments has been undertaken so far. AIMS. We exploit the FORS archive of circular spectropolarimetric data to examine in a general way how reliable and accurate field detections obtained with FORS are. METHODS. We examine the observations of Ap and Bp stars, on the grounds that almost all of the unambiguous detections of magnetic fields in the FORS1 archive are in these kinds of stars. We assess the overall quality of the FORS1 magnetic data by examining the consistency of field detections with what is known from previous measurements obtained with other instruments, and we look at patterns of internal consistency. RESULTS. FORS1 magnetic measurements are fully consistent with those made with other instruments, and the internal consistency of the data is excellent. However, i...

  10. RISK ASSESSMENT TECHNICAL EXPERT WORKING GROUP

    Broader source: Energy.gov [DOE]

    The Risk Assessment Technical Expert Working Group (RWG) is established to assist the Department of Energy (DOE) with the appropriate and effective use of quantitative risk assessment in nuclear...

  11. GROUP SPARSITY VIA LINEAR-TIME PROJECTION

    E-Print Network [OSTI]

    2008-08-01T23:59:59.000Z

    Jul 31, 2008 ... linear regression model subject to a bound on the l1-norm of the coefficients; .... this strategy scales poorly with the number of non-zero groups.

  12. Bradbury Science Museum -Scavenger Hunt Group Names-___________________________

    E-Print Network [OSTI]

    Bradbury Science Museum - Scavenger Hunt Group Names- ___________________________ Try to find all of these things somewhere in the museum. a satellite: What does a satellite do? Soma Cube: How many small cubes

  13. Safety Monitor Joint Working Group (JWG) Tour

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

    4 th Meeting of the Joint Working Group of the U.S.-Japan Coordinating Committee of Fusion Energy on Safety in Inter-Institutional Collaborations (U.S.-Japan Safety Monitoring...

  14. GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS

    E-Print Network [OSTI]

    Shoj, Toshiaki

    GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS University of Tokyo Noda, Chiba 278-8510, Japan Abstract. Green functions called symbols. Generali* *zing this, we define Green functions associated to complex reflection

  15. Organizing Your 4-H Project Group

    E-Print Network [OSTI]

    Howard, Jeff W.

    2005-05-10T23:59:59.000Z

    Project work allows 4-H volunteer leaders to teach and young people to learn new skills and gain new knowledge. Each project group should be organized in cooperation with the club's organizational leader. Use this guide when planning your first...

  16. Energy Management Working Group: Accelerating Energy Management 

    E-Print Network [OSTI]

    Scheihing, P.

    2014-01-01T23:59:59.000Z

    Countries participating in the Global Superior Energy Performance (GSEP) Energy Management Working Group (EMWG) are leveraging their resources and taking collective action to strengthen national and international efforts to facilitate the adoption...

  17. Geographic Constraints on Social Network Groups

    E-Print Network [OSTI]

    Onnela, Jukka-Pekka

    Social groups are fundamental building blocks of human societies. While our social interactions have always been constrained by geography, it has been impossible, due to practical difficulties, to evaluate the nature of ...

  18. Federal Utility Partnership Working Group Seminar Agenda

    Office of Environmental Management (EM)

    Federal Utility Partnership Working Group Seminar November 5-6, 2014 Cape Canaveral, FL Hosted by: Florida Power & Light Monday, November 3 9:00 am - 4:30 pm Advanced UESC...

  19. Utility Variable Generation Integration Group Fall Technical...

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

    15, 2014 9:00AM CDT to October 17, 2014 3:00PM CDT The Utility Variable Generation Integration Group (UVIG) Fall Technical Workshop in San Antonio, Texas will provide attendees...

  20. QUASI-REPRESENTATIONS OF SURFACE GROUPS 1 ...

    E-Print Network [OSTI]

    2012-07-13T23:59:59.000Z

    C?-algebra. 1. Introduction. Let G be a discrete countable group. In [3,4] the ... conjecture, a unital finite dimensional representation ?: C?(G) ? Mr(C) induces ...

  1. Hydrogen Storage Workshop Advanced Concepts Working Group

    E-Print Network [OSTI]

    / Current Status · Aerogels are the scaffold; template with organic functional groups; physisorption, acid benign ­ Inexpensive #12;Self-Assembled Nanocomposites ­ R&D Needs 1. Studying silica aerogels 2. Modifying aerogels 3. Theoretical Modeling - various chemical structures / materials 4. Functionalization

  2. Environmental Research Group 2014 Fall Seminar Series

    E-Print Network [OSTI]

    Environmental Research Group 2014 Fall Seminar Series October 24, 2014 Gregg 320, 12:00 ­ 1 of five hours, the city of Boston would have sustained even more damage from Hurricane Sandy than New York

  3. Chemical Safety Vulnerability Working Group report. Volume 3

    SciTech Connect (OSTI)

    Not Available

    1994-09-01T23:59:59.000Z

    The Chemical Safety Vulnerability (CSV) Working Group was established to identify adverse conditions involving hazardous chemicals at DOE facilities that might result in fires or explosions, release of hazardous chemicals to the environment, or exposure of workers or the public to chemicals. A CSV Review was conducted in 148 facilities at 29 sites. Eight generic vulnerabilities were documented related to: abandoned chemicals and chemical residuals; past chemical spills and ground releases; characterization of legacy chemicals and wastes; disposition of legacy chemicals; storage facilities and conditions; condition of facilities and support systems; unanalyzed and unaddressed hazards; and inventory control and tracking. Weaknesses in five programmatic areas were also identified related to: management commitment and planning; chemical safety management programs; aging facilities that continue to operate; nonoperating facilities awaiting deactivation; and resource allocations. Volume 3 consists of eleven appendices containing the following: Field verification reports for Idaho National Engineering Lab., Rocky Flats Plant, Brookhaven National Lab., Los Alamos National Lab., and Sandia National Laboratories (NM); Mini-visits to small DOE sites; Working Group meeting, June 7--8, 1994; Commendable practices; Related chemical safety initiatives at DOE; Regulatory framework and industry initiatives related to chemical safety; and Chemical inventory data from field self-evaluation reports.

  4. On the internet grouping for reliable multicasting

    E-Print Network [OSTI]

    Ghanem, Mohamed M.

    1996-01-01T23:59:59.000Z

    ON THE INTERNET GROUPING FOR RELIABLE MULTICASTING A Thesis by MOHAMED M. GHANEM Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1996... Major Subject: Computer Science ON THF, INTERNET GROUPING I'OR RELIABLE MULTICASTING A Thesis by MOHAMED M. GHANEM Submitted to Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved...

  5. Slow group velocity and Cherenkov radiation

    E-Print Network [OSTI]

    I. Carusotto; M. Artoni; G. C. La Rocca; F. Bassani

    2001-03-12T23:59:59.000Z

    We theoretically study the effect of ultraslow group velocities on the emission of Vavilov-Cherenkov radiation in a coherently driven medium. We show that in this case the aperture of the group cone on which the intensity of the radiation peaks is much smaller than that of the usual wave cone associated with the Cherenkov coherence condition. We show that such a singular behaviour may be observed in a coherently driven ultracold atomic gas.

  6. Splitting automorphisms of free Burnside groups

    SciTech Connect (OSTI)

    Atabekyan, Varuzhan S [Yerevan State University, Yerevan (Armenia)] [Yerevan State University, Yerevan (Armenia)

    2013-02-28T23:59:59.000Z

    It is proved that, if the order of a splitting automorphism of odd period n{>=}1003 of a free Burnside group B(m,n) is a prime, then the automorphism is inner. This implies, for every prime n{>=}1009, an affirmative answer to the question on the coincidence of the splitting automorphisms of period n of the group B(m,n) with the inner automorphisms (this question was posed in the 'Kourovka Notebook' in 1990). Bibliography: 17 titles.

  7. Eighteenth LAMPF users group meeting: proceedings

    SciTech Connect (OSTI)

    Bradbury, J.N. (comp.)

    1985-03-01T23:59:59.000Z

    The Eighteenth Annual LAMPF Users Group Meeting was held October 29-30, 1984, at the Clinton P. Anderson Meson Physics Facility. The program included a number of invited talks on various aspects of nuclear and particle physics as well as status reports on LAMPF and discussions of upgrade options. The LAMPF working groups met and discussed plans for the secondary beam lines, experimental programs, and computing facilities.

  8. 1 Finite Groups 1.1 Generalities

    E-Print Network [OSTI]

    Sohoni, Milind

    1 Finite Groups 1.1 Generalities Let V be a vector space over C , and let GL(V ) denote the group that (#26;; V ) is indecomposable is there is no expression V = W 1 #8;W 2 such that #26;(g)(W i ) #18; W i (#26; #3; ; V #3; ) de#12;ned as #26; #3; (v #3; )(v) = v #3; (#26;(g 1 )(v)). It will be convenient

  9. Graphs of subgroups of free groups

    E-Print Network [OSTI]

    Louder, Larsen

    2009-01-01T23:59:59.000Z

    We construct an efficient model for graphs of finitely generated subgroups of free groups. Using this we give a very short proof of Dicks's reformulation of the strengthened Hanna Neumann Conjecture as the Amalgamated Graph Conjecture. In addition, we answer a question of Culler and Shalen on ranks of intersections in free groups. The latter has also been done independently by R. P. Kent IV.

  10. Stereotactic body radiation therapy: The report of AAPM Task Group 101

    SciTech Connect (OSTI)

    Benedict, Stanley H.; Yenice, Kamil M.; Followill, David [University of Virginia Health System, Charlottesville, Virginia 22908 (United States); and others

    2010-08-15T23:59:59.000Z

    Task Group 101 of the AAPM has prepared this report for medical physicists, clinicians, and therapists in order to outline the best practice guidelines for the external-beam radiation therapy technique referred to as stereotactic body radiation therapy (SBRT). The task group report includes a review of the literature to identify reported clinical findings and expected outcomes for this treatment modality. Information is provided for establishing a SBRT program, including protocols, equipment, resources, and QA procedures. Additionally, suggestions for developing consistent documentation for prescribing, reporting, and recording SBRT treatment delivery is provided.

  11. A market-power based model of business groups

    E-Print Network [OSTI]

    Feenstra, Robert C; Huang, D S; Hamilton, G G

    2003-01-01T23:59:59.000Z

    complicated. In our model, business groups not only sellof Indian groups. 3. A Model of Business Groups We willa market-power based model of business groups. This We

  12. Let T be a locally finite rooted tree and Iso(T) be the group of all isometries of T.

    E-Print Network [OSTI]

    Ivanov, Aleksander

    Let T be a locally finite rooted tree and Iso(T) be the group of all isometries of T. Iso(T) is profinite with respect to canonical n: Iso(T) Iso(Tn ) , n, where Tn consists of the first n levels. #12| . PGL2 (p ) fixes the vertex p x p . 3. Branch groups. A closed subgroup GIso(T) is a branch (weakly

  13. Federal Utility Partnership Working Group Overview (FUPWG) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-07-01T23:59:59.000Z

    Fact sheet overview of the Federal Utility Partnership Working Group (FUPWG), including group objectives, activities, and services.

  14. On the use of consistent approximations in the solution of semi-infinite optimization, optimal control, and shape optimization problems

    SciTech Connect (OSTI)

    Polak, E.

    1994-12-31T23:59:59.000Z

    Unlike the situation with most other problems, the concept of a solution to an optimization problem is not unique, since it includes global solutions, local solutions, and stationary points. Earlier definitions of a consistent approximation to an optimization problem were in terms of properties that ensured that the global minimizers of the approximating problems (as well as uniformly strict local minimizers) converge only to global minimizers (local minimizers) of the original problems. Our definition of a consistent approximation addresses the properties not only of global and local solutions of the approximating problems, but also of their stationary points. Hence we always consider a pair, consisting of an optimization problem and its optimality function, (P, {theta}), with the zeros of the optimality function being the stationary points of P. We define consistency of approximating problem-optimality function pairs, (P{sub N}, {theta}{sub N}) to (P, {theta}), in terms of the epigraphical convergence of the P{sub N} to P, and the hypographical convergence of the optimality functions {theta}{sub N} to {theta}. As a companion to the characterization of consistent approximations, we will present two types of {open_quotes}diagonalization{close_quotes} techniques for using consistent approximations and {open_quotes}hot starts{close_quotes} in obtaining an approximate solution of the original problems. The first is a {open_quotes}filter{close_quotes} type technique, similar to that used in conjunction with penalty functions, the second one is an adaptive discretization technique with nicer convergence properties. We will illustrate the use of our concept of consistent approximations with examples from semi-infinite optimization, optimal control, and shape optimization.

  15. A PROOF THAT THOMPSON'S GROUPS HAVE INFINITELY MANY RELATIVE ENDS

    E-Print Network [OSTI]

    Farley, Dan

    A PROOF THAT THOMPSON'S GROUPS HAVE INFINITELY MANY RELATIVE ENDS DANIEL FARLEY Abstract. We show that each of Thompson's groups F , T, and V has infin- itely many ends relative to the groups F[0,1/2], T[0, that Thomp- son's groups T and V have Serre's property FA. 1. Introduction Thompson's group F is the group

  16. Bounds and self-consistent estimates for elastic constants of granular polycrystals composed of orthorhombics or crystal with higher symmetries

    SciTech Connect (OSTI)

    Berryman, J. G.

    2011-02-01T23:59:59.000Z

    Methods for computing Hashin-Shtrikman bounds and related self-consistent estimates of elastic constants for polycrystals composed of crystals having orthorhombic symmetry have been known for about three decades. However, these methods are underutilized, perhaps because of some perceived difficulties with implementing the necessary computational procedures. Several simplifications of these techniques are introduced, thereby reducing the overall computational burden, as well as the complications inherent in mapping out the Hashin-Shtrikman bounding curves. The self-consistent estimates of the effective elastic constants are very robust, involving a quickly converging iteration procedure. Once these self-consistent values are known, they may then be used to speed up the computations of the Hashin-Shtrikman bounds themselves. It is shown furthermore that the resulting orthorhombic polycrystal code can be used as well to compute both bounds and self-consistent estimates for polycrystals of higher-symmetry tetragonal, hexagonal, and cubic (but not trigonal) materials. The self-consistent results found this way are shown to be the same as those obtained using the earlier methods, specifically those methods designed specially for each individual symmetry type. But the Hashin-Shtrikman bounds found using the orthorhombic code are either the same or (more typically) tighter than those found previously for these special cases (i.e., tetragonal, hexagonal, and cubic). The improvement in the Hashin-Shtrikman bounds is presumably due to the additional degrees of freedom introduced into the available search space.

  17. Integration of geodesic flows on homogeneous spaces: the case of a wild lie group

    E-Print Network [OSTI]

    A. A. Magazev; I. V. Shirokov

    2007-03-21T23:59:59.000Z

    We obtain necessary and sufficient conditions for the integrability in quadratures of geodesic flows on homogeneous spaces $M$ with invariant and central metrics. The proposed integration algorithm consists in using a special canonical transformation in the space $T^*M$ based on constructing the canonical coordinates on the orbits of the coadjoint representation and on the simplectic sheets of the Poisson algebra of invariant functions. This algorithm is applicable to integrating geodesic flows on homogeneous spaces of a wild Lie group.

  18. Spent Fuel Working Group Report. Volume 1

    SciTech Connect (OSTI)

    O`Toole, T.

    1993-11-01T23:59:59.000Z

    The Department of Energy is storing large amounts of spent nuclear fuel and other reactor irradiated nuclear materials (herein referred to as RINM). In the past, the Department reprocessed RINM to recover plutonium, tritium, and other isotopes. However, the Department has ceased or is phasing out reprocessing operations. As a consequence, Department facilities designed, constructed, and operated to store RINM for relatively short periods of time now store RINM, pending decisions on the disposition of these materials. The extended use of the facilities, combined with their known degradation and that of their stored materials, has led to uncertainties about safety. To ensure that extended storage is safe (i.e., that protection exists for workers, the public, and the environment), the conditions of these storage facilities had to be assessed. The compelling need for such an assessment led to the Secretary`s initiative on spent fuel, which is the subject of this report. This report comprises three volumes: Volume I; Summary Results of the Spent Fuel Working Group Evaluation; Volume II, Working Group Assessment Team Reports and Protocol; Volume III; Operating Contractor Site Team Reports. This volume presents the overall results of the Working Group`s Evaluation. The group assessed 66 facilities spread across 11 sites. It identified: (1) facilities that should be considered for priority attention. (2) programmatic issues to be considered in decision making about interim storage plans and (3) specific vulnerabilities for some of these facilities.

  19. Planning a site investigation using analogous groups

    SciTech Connect (OSTI)

    Pak, P.M. [USDOE Richland Operations Office, WA (United States); Galgoul, M.J.; Wittreich, C.D. [Westinghouse Hanford Co., Richland, WA (United States)

    1993-09-01T23:59:59.000Z

    A limited field investigation (LFI) has been designed for the 200-UP-2 Operable Unit within the 200 Areas of the US Department of Energy (DOE) Hanford Site in Washington state using the concept of analogous groups. The LFI is part of a RCRA facility investigation (RFI) corrective measures study (CMS) being conducted in this operable unit. The concept emphasizes that characterization activities can be reduced by identifying select sites (analogous sites) for characterization that represents a group of sites (analogous groups). This concept is particularly applicable to operable units that contain several waste management units that are similar in design, disposal history, and geology. Application of this concept reduced the number of waste management units initially undergoing characterization by more than two-thirds. The work plan is presently in the approval cycle with the field characterization phase expected to begin August 1993.

  20. Self-Consistent-Field Study of Adsorption and Desorption Kinetics of Polyethylene Melts on Graphite and Comparison with Atomistic Simulations

    E-Print Network [OSTI]

    Doros N. Theodorou; Georgios G. Vogiatzis; Georgios Kritikos

    2015-02-20T23:59:59.000Z

    A method is formulated, based on combining self-consistent field theory with dynamically corrected transition state theory, for estimating the rates of adsorption and desorption of end-constrained chains (e.g. by crosslinks or entanglements) from a polymer melt onto a solid substrate. This approach is tested on a polyethylene/graphite system, where the whole methodology is parametrized by atomistically detailed molecular simulations. For short-chain melts, which can still be addressed by molecular dynamics simulations with reasonable computational resources, the self-consistent field approach gives predictions of the adsorption and desorption rate constants which are gratifyingly close to molecular dynamics estimates.