National Library of Energy BETA

Sample records for undevel oped undevel

  1. Proceeding of the International Conference & Exhibition on Pressure Vessels and Piping, "OPE 2006 CHENNAI",

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Proceeding of the International Conference & Exhibition on Pressure Vessels and Piping, "OPE 2006 on Pressure Vessels and Piping, "OPE 2006 ­ CHENNAI", 7-9, February 2006, Chennai, India B8-2 (Page 2

  2. Deputy Secretary Daniel Poneman USA Today Op-Ed September 13...

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

    Deputy Secretary Daniel Poneman USA Today Op-Ed September 13, 2011 Deputy Secretary Daniel Poneman USA Today Op-Ed September 13, 2011 091411Poneman USA Today op-ed.pdf More...

  3. Oficina para Prcticas Externas y Empleabilidad (OPE) CONVOCATORIA ORDINARIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    Prácticas Externas y Empleabilidad (OPE) CRITERIOS DE SELECCIÓN: Manejo de herramientas informáticas básicas (PowerPoint, Excel, Access, etc.). Dominio de Internet y de redes sociales de comunicación

  4. Stress-tensor OPE in N=2 Superconformal Theories

    E-Print Network [OSTI]

    Pedro Liendo; Israel Ramirez; Jihye Seo

    2015-08-31

    We carry out a detailed superspace analysis of the OPE of two N=2 stress-tensor multiplets. Knowledge of the multiplets appearing in the expansion, together with the two-dimensional chiral algebra description of N=2 SCFTs, imply an analytic bound on the central charge c. This bound is valid for any N=2 SCFT regardless of its matter content and flavor symmetries, and is saturated by the simplest Argyres-Douglas fixed point. We also present a partial conformal block analysis for the scalar superconformal primary of the multiplet.

  5. Op-Ed by Secretary of Energy Steven Chu and Secretary of Labor...

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

    To commemorate Earth Day, the op-ed below on green jobs and energy independence by Secretaries Steven Chu and Hilda Solis ran in the following papers yesterday and today: Austin...

  6. Op-Ed by Secretary of Energy Steven Chu and Secretary of Labor...

    Energy Savers [EERE]

    Economy April 22, 2009 - 12:00am Addthis To commemorate Earth Day, the op-ed below on green jobs and energy independence by Secretaries Steven Chu and Hilda Solis ran in the...

  7. March 15, 2009 OP-ED COLUMNIST

    E-Print Network [OSTI]

    then be harnessed to heat up liquid salt and produce massive amounts of steam to drive a turbine and create who has a duck in his basement that paddles a wheel, blows up a balloon, turns a turbine and creates

  8. Expanding OPeNDAP Jason Roberts1

    E-Print Network [OSTI]

    Phipps, Steven J.

    Highway, Kingston, Tasmania, Australia, 7050 3 Science and Technology Facilities Council, Rutherford Ltd 114 Murray St. Hobart, Tasmania, Australia, 7050 5 now at CSIRO Marine and Atmospheric Research

  9. Op-Ed Contributor How Seawater Can Power the World

    E-Print Network [OSTI]

    : July 10, 2011 DEBATE about America's energy supply is heating up: gas prices are rising, ethanol nuclear fission reactors, turns water into steam, which drives turbines to generate electricity needed to develop a domestic fusion reactor to produce electricity for the American power grid. Meanwhile

  10. Oficina para Prcticas Externas y Orientacin para el Empleo (OPE) CONVOCATORIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE LA OPE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    documentos - Supervisión de nóminas y contabilidad - Elaboración de memorias y documentos mediante programas

  11. Oficina para Prcticas Externas y Orientacin para el Empleo (OPE) CONVOCATORIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE LA OPE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    docentes en la planificación, creación e impartición de MOOCs. Se valorará: · Manejo de herramientas ofimáticas (procesador de texto, hoja de cálculo, etc.). · Manejo plataformas de formación, Internet y bases de datos, herramientas de edición de vídeo y audio y herramientas colaborativas. · Conocimientos

  12. Oficina para Prcticas Externas y Orientacin para el Empleo (OPE) CONVOCATORIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE LA OPE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    empresariales · Herramientas para búsqueda de datos de empresas · Manejo de herramientas informáticas: bases de. · Disponibilidad. · Conocimientos básicos de Office (Word, Excel, ...). · Manejo de Internet. CRITERIOS DE. · Conocimientos de inglés. · Conocimientos básicos en ofimática. · Conocimientos página web, manejo de internet

  13. OPE Campus Security Statistics Institution Detail Home | Glossary | New Search | Search Results

    E-Print Network [OSTI]

    a. Murder/Non-negligent manslaughter 0 0 0 b. Negligent manslaughter 0 0 0 c. Sex offenses-Campus Residence Halls (Residence Halls are a subset of On Campus) 2008 2009 2010 a. Murder 2010 a. Murder/Non-negligent manslaughter 0 0 0 b. Negligent manslaughter 0 0 0 c. Sex offenses

  14. Improving Public Service Provision in the Devel-oping World Through a Crowd-sourced Location

    E-Print Network [OSTI]

    Köbben, Barend

    and business in providing services in developing world, the lack of governmental and non-governmental data its initial design, inception and deployment. It was originally conceived at the Random Hacks on certain issues they are fac- ing. During the RHOK hackathon a group of core developers 'hacked' a solution

  15. Tri-City Herald OpEd: Electric Vehicles are a smart choice

    SciTech Connect (OSTI)

    Christensen, Peter C.; Haas, Anne M.

    2010-12-10

    Why are so many of us at the Pacific Northwest National Laboratory, a national thought leader in power industry issues located right here in the Tri-Cities, so bullish on the future of EVs? And why do we think it's so important that this country, especially THIS part of the country, be leaders in the adoption of EVs? Is it that we all just happen to like driving polluting golf carts? The answer is that, like most everyone else, most of us here at PNNL drive to work every day, and like most people, we care about the cost of gasoline and the impact that burning imported oil has on the environment and on our foreign policy. The reality is that electric vehicles are simply more efficient, pollute much less, use locally-generated energy, and cost MUCH less to drive.

  16. OPE for all Helicity Amplitudes II. Form Factors and Data analysis

    E-Print Network [OSTI]

    Benjamin Basso; Joao Caetano; Lucia Cordova; Amit Sever; Pedro Vieira

    2015-08-12

    We present the general flux tube integrand for MHV and non-MHV amplitudes, in planar N = 4 SYM theory, up to a group theoretical rational factor. We find that the MHV and non-MHV cases only differ by simple form factors which we derive. This information allows us to run the operator product expansion program for all sorts of non-MHV amplitudes and to test the recently proposed map with the so called charged pentagons transitions. Perfect agreement is found, on a large sample of non-MHV amplitudes, with the perturbative data available in the literature.

  17. Oficina para Prcticas Externas y Empleabilidad (OPE) CONVOCATORIA ORDINARIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    en el sector de la divulgación y la didáctica. Un ejemplo de ello es la empresa ARQUEODIDACT dos de mediante scaner 3D. Un ejemplo de la formación de los alumnos ene sta asignatura ha sido la participación cursando el master o el doctorado en Prehistoria o Arqueología y que desarrollen su TFM o tesis doctoral en

  18. Power Corrections to Perturbative QCD and OPE in Gluon Green Functions

    E-Print Network [OSTI]

    D. Becirevic; Ph. Boucaud; F. De Soto; A. Le Yaouanc; J. P. Leroy; J. Micheli; O. Pène; J Rodrí guez-Quintero; C. Roiesnel

    2001-10-15

    We show that QCD Green functions in Landau Gauge exhibit sizable $O(1/\\mu^2)$ corrections to the expected perturbative behavior at energies as high as 10 GeV. We argue that these are due to a $$-condensate which does not vanish in Landau gauge.

  19. Oficina para Prcticas Externas y Empleabilidad (OPE) CONVOCATORIA ORDINARIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    Movilidad Sostenible. PROYECTO FORMATIVO: A) COMPETENCIAS PROFESIONALES A ADQUIRIR Y DESARROLLAR (escoger de este tipo. Formación continua en temas de movilidad sostenible y su fomento en el campus a los DE SELECCIÓN: Conocimientos de Adobe Dreamweaver. Experiencia en diseño y desarrollo de programas

  20. Oficina para Prcticas Externas y Empleabilidad (OPE) CONVOCATORIA ORDINARIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    Universitario en Planificación y Desarrollo Territorial Sostenible. PROYECTO FORMATIVO: A) COMPETENCIAS

  1. Oficina para Prcticas Externas y Empleabilidad (OPE) CONVOCATORIA ORDINARIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    , tanto en estudios de Grado como en Posgrado. Colaboración en el mantenimiento de las condiciones adecuadas del software y hardware disponible, así como el material periférico disponible. Apoyo a las

  2. OPE for all Helicity Amplitudes II. Form Factors and Data analysis

    E-Print Network [OSTI]

    Basso, Benjamin; Cordova, Lucia; Sever, Amit; Vieira, Pedro

    2015-01-01

    We present the general flux tube integrand for MHV and non-MHV amplitudes, in planar N = 4 SYM theory, up to a group theoretical rational factor. We find that the MHV and non-MHV cases only differ by simple form factors which we derive. This information allows us to run the operator product expansion program for all sorts of non-MHV amplitudes and to test the recently proposed map with the so called charged pentagons transitions. Perfect agreement is found, on a large sample of non-MHV amplitudes, with the perturbative data available in the literature.

  3. Oficina para Prcticas Externas y Empleabilidad (OPE) CONVOCATORIA ORDINARIA DEL AO 2015 PARA PRCTICAS REMUNERADAS DE

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    online. Se valorará: Conocimientos relativos al uso de herramientas de edición de vídeo y audio (Adobe Premier, Adobe Photoshop, herramientas para capturar pantalla, etc). Manejo de herramientas ofimáticas (procesador de texto, hoja de cálculo, etc.). Manejo plataformas de formación, Internet y recursos digitales

  4. Genome Data from DOOR: a Database for prOkaryotic OpeRons

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    DOOR provides an Organism View for browsing, a gene search tool, an operon search tool, and the operon prediction interface.[Text taken and edited from http://csbl1.bmb.uga.edu/OperonDB/tutorial.php

  5. Op-Ed by Secretary of Energy Steven Chu and Secretary of Labor Hilda Solis:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergy Managing853926 NewsORMAT NEVADAEnergyAFourEnergy online

  6. Secretary Chu Op-Ed on Energy Efficiency from the World Economic Forum |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool FitsProjectData DashboardSolarEfficiency Improvements | DepartmentDepartment of

  7. Secretary Chu Op-Ed on Small Modular Reactors in the Wall Street Journal |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool FitsProjectData DashboardSolarEfficiency Improvements | DepartmentDepartment

  8. Secretary Chu's Op-Ed on Small Modular Reactors in the Wall Street Journal

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1Research andAdministration'sDepartmentPartnershipsSecretary|

  9. Secretary Chu's Weatherization Op-Ed in the Huffington Post | Department of

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1ResearchUniversity Commencement | DepartmentWorks -

  10. OPE's and the Dilaton Beta-Function for the 2-D N=1 Supersymmetric Non-Linear $?$-Model

    E-Print Network [OSTI]

    Marcia E. Wehlau

    1994-10-18

    Using the superspace formalism, we compute for the two-dimensional N=1 supersymmetric non-linear $\\sigma$-model, the order $(\\alpha^{\\prime})^{2}$ $(R_{mnpq})^2$ (three-loop) correction to the central charge via the operator product expansion of the supercurrent with itself. The contribution vanishes, in agreement with previous results obtained from the usual $\\sigma$-model $\\beta$-function approach.

  11. This guidance on childhood lead screening was devel-oped by CDC in consultation with the members and

    E-Print Network [OSTI]

    Academy press, 1993. U.S. Department of Housing and Urban Development (HUD). Guidelines for the evaluation and control of lead-based paint hazards in housing. Washington, D.C.: HUD, 1995. 5creening Young Children

  12. Monday, April 1st, 2013 Home TopNews BC/Canada Bollywood Sports Business Travel Lifestyle BCElection Bloggers Entertainment News OP-ED

    E-Print Network [OSTI]

    Harinarayana, T.

    , March 31 (IANS) India's major roads maydouble up as solar highways, if an innovative proposal bysome of Energy, Environment and Engineering, the scientists sayhighways can be used to generate solar power, if a roof of solar panels was laid over them, across the length of the roads. The photovoltaic (PV) panels

  13. RELACIN DE PLAZAS DE PRCTICAS REMUNERADAS OPE 2015 CONCEDIDAS POR LA COMISIN DELEGADA DE EMPLEABILIDAD EN SU SESIN DE 17-10-2014

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    remuneradas asignadas a las Facultades y a la Escuela Politécnica, la Comisión Delegada de Empleabilidad equipo de dirección) de cada Centro. CENTRO/SERVICIO Número de prácticas Meses de cada plaza ESCUELA UNIDAD DE CULTURA CIENTIFICA 1 9 CENTRO CULTURAL LA CORRALA MUSEO ARTES Y TRADICIONES POPULARES 3 10 3 8

  14. http://www.boston.com/bostonglobe/editorial_opinion/oped/articles/2008/01/02/the_wrong_choice_for_massachusetts/ The wrong choice for Massachusetts

    E-Print Network [OSTI]

    Hansen, James E.

    change "tipping points." Greenhouse gases released in burning fossil fuels are nearing a level on two counts. Energy legislation in the state Senate would reshape rules designed to encourage renewable energies, modifying them to encourage energy generation from coal. A proposed amendment to the "Green

  15. The aim in the op-ed below is to catch the attention of key judges on the Supreme Court, before they decide whether they will review the puzzling decision of the D.C. Circuit Court that

    E-Print Network [OSTI]

    Hansen, James E.

    present massive subsidization of the fossil fuel industry. We need a new approach, one grounded failure to ensure that carbon emissions are reduced, our federal government is in violation of its as the long-wave control knob on the planet's thermostat, so that our decisions today will determine whether

  16. Atlantic Oceanographic and Meteorological LaboratoryNovember-December2006 Volume10,Number6 AOML is a research laboratory of NOAA's Office of Oceanic and Atmospheric Research

    E-Print Network [OSTI]

    that began devel- oping in August across the tropical Pacific generated crosswinds in the upper atmo- sphere

  17. ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978

    E-Print Network [OSTI]

    Cairns, E.L.

    2011-01-01

    and thermal standards on energy consumption, and methods forthermal energy. The bioconversion studies are aimed at devel- oping economical methods

  18. 19 gennaio 2007 N. di Matricola: 00101 Marcare con una crocetta le risposte ritenute corrette e consegnare la scheda al termine della prima

    E-Print Network [OSTI]

    Frosini, Patrizio

    'insieme delle matrici reali 4 × 4 con traccia positiva `e un gruppo rispetto alla usuale ope- razione di

  19. High performance RF MEMS metal-contact switches and switching networks

    E-Print Network [OSTI]

    Patel, Chirag D.; Patel, Chirag D.

    2012-01-01

    design, devel- oped for medium- power applications (5-10 W), was also used to implement compact switching

  20. ANALYSIS OF THE PERFORMANCE AND COST EFFECTIVENESS OF NINE SMALL WIND ENERGY CONVERSION SYSTEMS FUNDED BY THE DOE SMALL GRANTS PROGRAM

    E-Print Network [OSTI]

    Kay, J.

    2009-01-01

    alia, February 1981, Battery Storage Side Holbrook, Ope cit.on-site may find Two battery storage economically feasibleuse as low as possible. Battery storage would help regulate

  1. 5/11/10 7:21 AMOp-Ed Contributors -Plan B in the Gulf -NYTimes.com Page 1 of 3http://www.nytimes.com/2010/05/11/opinion/11oped2.html?sq=hazen&st=cse&scp=1&pagewanted=print

    E-Print Network [OSTI]

    Hazen, Terry

    the weekend BP learned that its latest effort at stanching the Deepwater Horizon oil spill -- placing a huge?sq=hazen&st=cse&scp=1&pagewanted=print required on American rigs. But the Deepwater Horizon was hardly without safety or premature signal. When a safety switch is thrown, a device cuts the drill pipe, letting it fall

  2. Revised 08/13 Child & Family

    E-Print Network [OSTI]

    Capecchi, Mario R.

    -oping, you could: · Use metered parking · Park and pay in the bookstore parking lot. The bookstore visitor parking lot charges $1 per hour. Co-Op Parking Co-oping parents that are bringing a snack or a story have Parent Information Manual #12;2 Contents Phone Numbers 2 School Calendar 2 Tuition & Fees 3 Parking

  3. LiU E-Press Linkoping University Electronic Press 2006-01

    E-Print Network [OSTI]

    Zhao, Yuxiao

    LiU E-Press Link¨oping University Electronic Press 2006-01 Erik Sandewall and Peter Berkesand Link¨oping University Electronic Press Activities during 2005 Date of Manuscript: 2006-02-13 Related information can be obtained via the following WWW pages: E-Press Website: The author: http://www.ep.liu.se/ http

  4. Indoor climate and productivity in office buildings

    E-Print Network [OSTI]

    Schiavon, Stefano; Zecchin, Roberto

    2009-01-01

    in improved of the potential heat stress and open-plan re-ope- Medicine, n. 4. heat stress on the Swedish Instituteed. on pairs of stresses: mild heat and low-frequency of

  5. Mobile Communications Reveal the Regional Economy in C^ote Huina Mao1,2

    E-Print Network [OSTI]

    Menczer, Filippo

    technology as a tool in reducing poverty are not well understood, and, second, that devel- oping countries. As part of their efforts to alleviate poverty and support socio- economic development many governments

  6. Proceedings of the TOUGH Symposium 2009

    E-Print Network [OSTI]

    Moridis, George J.

    2010-01-01

    rock piles producing acid mine drainage: 2. Applications ofSimulations of Acid Rock Drainage in the Questa Mine Rockdevel- oped—by the Acid Rock Drainage research group of the

  7. Blood-sucking parasite and quail decline connection http://www.digitaljournal.com/news/environment/blood-sucking-parasite-and-quail-decline-connection/article/398957[8/25/2014 4:22:12 PM

    E-Print Network [OSTI]

    Rock, Chris

    shores Man drowns after trying to rescue boy from river Op-Ed: Putin uses army to manipulate oil prices have an alliance of necessity with Syria's Assad? Women need testosterone, a new study reports SPECIAL

  8. Effects of vacancy-solute clusters on diffusivity in metastable Fe-C alloys Mukul Kabir,1 Timothy T. Lau,1,* Xi Lin,2 Sidney Yip,1,3 and Krystyn J. Van Vliet1,

    E-Print Network [OSTI]

    Lin, Xi

    deformation via dislocation glide. High-strength steels devel- oped for current energy and infrastructure. This degree of supersaturation ranges from 0.3 at. % C upon annealing 670 K Ref. 4 to 5 at. % C in volumes

  9. Computer-Generated Nuclear Features Compared With Axillary Lymph Node Status

    E-Print Network [OSTI]

    Street, Nick

    results are generally applicable be- cause our patient survival, when stratified by lymph node status program that we devel- oped2 and call Xcyt (available free of charge at http:// dollar

  10. MULTISCALE MODEL. SIMUL. c 2014 Society for Industrial and Applied Mathematics Vol. 12, No. 1, pp. 2554

    E-Print Network [OSTI]

    such as macromolecules, quan- tum systems, and polymers, a prime concern is the identification of the most probable sampling methods such as umbrella sampling, metadynamics, and conformational flooding have been devel- oped

  11. This February saw Toby Ault's latest study on mega-drought in the South-and Mid-West make mega-news, while Tom Hirschl's recent work on affluence shows there's at least some fluidity amongst the mega-wealthy. Plus, could

    E-Print Network [OSTI]

    Angenent, Lars T.

    ,with an op-ed on how climate conservation and homeland preservation go hand-in-hand. TheAtlantic:"Drones that drones could be used to research hard-to-reach nests. TheSundayTimes:"TheSunday Times

  12. FISHES OF THE GULF OF MAINE 15 CARTILAGINOUS FISHES. CLASS CHONDRICHTHYES

    E-Print Network [OSTI]

    the body. Among sharks the tail is uneven ("heterocercal"), with the vertebral column extending out Tribes, and the Chimaeroids These are fisWike vertebrates with well-devel- oped fins and teeth

  13. SOME PERSPECTIVES ON NON-VERBAL COMMUNICATION

    E-Print Network [OSTI]

    Braun, Elizabeth V.

    1970-04-01

    to lend itself particularly appropriately to Kuhn's concept of the "or Lent.atLonal, other ;" See Hanford H. Kuhn, liThe Reference Group Reconsdde red;" in Hanf,s and Meltzer, Ope cLt; , p p , 171-184, especially pp. 181-1820 12. Hall, op. cit., p. 600 13... to lend itself particularly appropriately to Kuhn's concept of the "or Lent.atLonal, other ;" See Hanford H. Kuhn, liThe Reference Group Reconsdde red;" in Hanf,s and Meltzer, Ope cLt; , p p , 171-184, especially pp. 181-1820 12. Hall, op. cit., p. 600 13...

  14. Massive Orbifold

    E-Print Network [OSTI]

    S. Cecotti; C. Vafa

    1992-03-24

    We study some aspects of 2d supersymmetric sigma models on orbifolds. It turns out that independently of whether the 2d QFT is conformal the operator products of twist operators are non-singular, suggesting that massive (non-conformal) orbifolds also `resolve singularities' just as in the conformal case. Moreover we recover the OPE of twist operators for conformal theories by considering the UV limit of the massive orbifold correlation functions. Alternatively, we can use the OPE of twist fields at the conformal point to derive conditions for the existence of non-singular solutions to special non-linear differential equations (such as Painleve III).

  15. Learning Deep Sigmoid Belief Networks with Data Augmentation Zhe Gan Ricardo Henao David Carlson Lawrence Carin

    E-Print Network [OSTI]

    Carin, Lawrence

    Learning Deep Sigmoid Belief Networks with Data Augmentation Zhe Gan Ricardo Henao David Carlson Abstract Deep directed generative models are devel- oped. The multi-layered model is designed by stacking available datasets: MNIST, Caltech 101 Silhouettes and OCR letters. 1 Introduction The Deep Belief Network

  16. DEEP: A Provenance-Aware Executable Document System

    E-Print Network [OSTI]

    Browne, William J.

    DEEP: A Provenance-Aware Executable Document System Huanjia Yang1 , Danius T. Michaelides1 , Chris of both techniques. In this paper, we introduce the design and development of Deep, an executable document. In the e-Stat project, we have devel- oped Deep(Documents with Embedded Execution and Provenance), a system

  17. Metabolic and Kinetic Analysis of Poly(3-Hydroxybutyrate) Production by

    E-Print Network [OSTI]

    constant at 1.1 min-1 . All major consumption and production rates were quantified. The intracellularMetabolic and Kinetic Analysis of Poly(3-Hydroxybutyrate) Production by Recombinant Escherichia Abstract: A quantitatively repeatable protocol was devel- oped for poly(3-hydroxybutyrate) (PHB) production

  18. Environmental Compliance 2-1 2. Environmental Compliance

    E-Print Network [OSTI]

    Pennycook, Steve

    ResourceConservationandRecoveryAct (RCRA) was passed in 1976 to address management of the country's huge volume of solid waste. The law requires that EPA regulate the management of hazardous waste, which includes waste solvents, batteries. In addition, owners and operators of hazardous waste management facilities have ope

  19. Stochastic Model and Probabilistic Decision-Based Classifier for Mass Detection in Digital Mammography

    E-Print Network [OSTI]

    Liu, K. J. Ray

    Stochastic Model and Probabilistic Decision-Based Classifier for Mass Detection in Digital- tween local dense tissues and masses. In recent years, some computer-aided diagnosis (CADx) schemes for mass detection and classification have been devel- oped by several researchers [l,2, 31. Most CADx

  20. To link to this article: DOI: 10.1016/j.scriptamat.2011.10.022 URL: http://dx.doi.org/10.1016/j.scriptamat.2011.10.022

    E-Print Network [OSTI]

    Mailhes, Corinne

    in Table 1. It was devel- oped by ONERA for single-crystalline turbine blades of helicopter turboshaft is investigated. Tensile creep tests were performed under thermal cycling and isothermal conditions at low stress in the most advanced gas turbine engines for aircraft and helicopters. They consist of two phases: a high

  1. Carl Lagoze Cornell University

    E-Print Network [OSTI]

    Tomkins, Andrew

    - oped special classifications to identify every tablet and its content. (See www. libraries.gr for a great historical perspec- tive on modern libraries.) The need to store and retrieve data has become email search systems to large corporate information- management systems, from small library collections

  2. reason is cost. High-TC wires in use today are 70% silver by volume. Even if a silver-free

    E-Print Network [OSTI]

    Perrimon, Norbert

    in both the superconductor and surrounding metallic casing. By devel- oping lower-temperature but cost-tested powder-in-a-tube technique which was developed for low-temperature superconductors, such as Nb applied superconductivity. Still, we will have to await a few more sequels to this new work2­4 before we

  3. Presented at the IS&T/SID Fifth Color Imaging Conference, November 1997 Inverse Lighting for Photography

    E-Print Network [OSTI]

    Marschner, Steve

    Presented at the IS&T/SID Fifth Color Imaging Conference, November 1997 Inverse Lighting, New York Abstract We introduce a technique for improving photographs using inverse lighting, a new process based on algorithms devel­ oped in computer graphics for computing the reflection of light in 3D

  4. Lower Bounds on Testing Membership to a Polyhedron by

    E-Print Network [OSTI]

    Grigoriev, Dima

    Email:imilar question was ope* *n for algebraic decision dima@cse.psu.edu. Supported in part by the Volkswagen and ECUS030, and by the Volkswagen-Stiftung.oEmail:btaining lower bounds f* *or the complexity of test

  5. InsideIllinoisJuly 15, 2010 Vol. 30, No. 1

    E-Print Network [OSTI]

    Bashir, Rashid

    at the UI and the Ohio State University Medical Center. Whether resulting from ill- ness or injury, loss skimmer removes oil more efficiently By Sharita Forrest News Editor A researcher at the UI is devel- oping a floating oil skimmer that removes oil from the sur- face of water more efficiently than existing skimmers

  6. l -Int'l Summer School and Workshop on Non-Normal and Nonlinear Effects in Aero-and Thermoacoustics, May 17-21, 2010, Munich

    E-Print Network [OSTI]

    Hirche, Sandra

    - and Thermoacoustics, May 17-21, 2010, Munich A SIMPLE STATE-SPACE APPROACH FOR THE INVESTIGATION OF NON-NORMAL EFFECTS IN THERMOACOUSTIC SYSTEMS Herbert Mangesius, Wolfgang Polifke Lehrstuhl für Thermodynamik Technische Universität-order, state-space modeling approach for thermoacoustic systems has been devel- oped, which is based on present

  7. Incremental Testing of ObjectOriented Class Structures

    E-Print Network [OSTI]

    McGregor, John D.

    Incremental Testing of Object­Oriented Class Structures Mary Jean Harrold and John D. Mc­designed, thoroughly­tested classes that can be confidently reused for many applications, few class testing techniques have been devel­ oped. In this paper, we present a class testing technique that exploits

  8. Incremental Testing of Object-Oriented Class Structures

    E-Print Network [OSTI]

    McGregor, John D.

    Incremental Testing of Object-Oriented Class Structures Mary Jean Harrold and John D. Mc-designed, thoroughly-tested classes that can be confidently reused for many applications, few class testing techniques have been devel- oped. In this paper, we present a class testing technique that exploits

  9. AUGUST AND SEPTEMBER SYSTEM SAFETY PROGRESS REPORT

    E-Print Network [OSTI]

    Rathbun, Julie A.

    failure at NOL during safety testing. 2. 2 Status The change has been incorporated into the Qual information to as sure controlled conditions during the hazardous field test sequences for the protection life cycle of the LSP Experiment. 5. 3 ATM 1056 Ground Ope rations and Safety Plan was released on 28

  10. Microbial Energizers: Fuel Cells That Keep on Going

    E-Print Network [OSTI]

    Lovley, Derek

    - cessing food wastes. · Optimizing microbial fuel cells will entail devel- oping a better understandingMicrobial Energizers: Fuel Cells That Keep on Going Microbes that produce electricity by oxidizing to eliminate the inefficien- cies of combustion are behind the recent interest in hydrogen fuel cells, which

  11. was to dive underwater and conceal them-selves in mud or vegetation, remaining

    E-Print Network [OSTI]

    Richter, Stephen C.

    tails, misplaced bony projections, underdevel- oped digits, Robert DuBois, personal com- munication fumiferana) con- trol, may adversely affect mink frog popu- lations in forest ponds (McAlpine et al., 1998). The susceptibility of mink frog breeding ponds to pH depression resulting from atmospheric acid deposition is con

  12. Software Tools for Technology Transfer manuscript No. (will be inserted by the editor)

    E-Print Network [OSTI]

    David, Alexandre

    with powerful SMC analysis techniques for stochastic and hybrid systems. This goal is obtained by devel- oping Model Checking for Biological Systems Alexandre David1 , Kim G. Larsen1 , Axel Legay1,2 , Marius approach for testing and estimating the probability that a stochastic system sat- isfy a given linear

  13. ESSAY #2 H222c Energy & Environment out: 11 April (Weds)

    E-Print Network [OSTI]

    for example today's (11 Apr 2012) Seattle Times Op-Ed on the solar power industry: Tore Torvund, CEO of REC global society is just too big to start with. As you research the biomass power plant in a small village biomass power plant project as a starting point but feel free to use historical examples of `bigness

  14. Assessment of Natural Gas Single Cycle Turbine,

    E-Print Network [OSTI]

    capital cost ($/kW) O&M costs fixed ($/kW-yr) and variable ($/MWh) Levelized cost fixed ($/kW-yr) and full ($/MWh)­ annualized cost of capital and operation across thea ua ed cost o cap ta a d ope at o ac capital cost estimates, but the levelized cost over 20 year planning horizon is uncertain ­ depends

  15. Generating Trace-Sets for Model-based Testing Birgitta Lindstrom

    E-Print Network [OSTI]

    Offutt, Jeff

    into a powerful technique for automatic formal ver- ification of transition systems. Researchers have devel- oped University Fairfax, VA 22030, USA E-mail: offutt@gmu.edu Abstract Model-checkers are powerful tools that can to a number of problems. Instead of individual traces, software testing needs sets of traces that satisfy

  16. International Conference of Modeling, Optimization and Simulation -MOSIM'12 June 6-8, 2012 -Bordeaux -France

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    manufacturers. While many models of hybrid cars have been devel- oped and put on the market in the last few Environment for Assessing Power Management Strategies in Hybrid Motorcycles Alessandro Beghi, Fabio Maran of transportation systems is a world wide priority. Hybrid propulsion vehicles have proved to have a strong

  17. 1070 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 18, NO. 4, JULY 2003 A Novel Discrete Control Strategy for Independent

    E-Print Network [OSTI]

    Mazumder, Sudip K.

    Strategy for Independent Stabilization of Parallel Three-Phase Boost Converters by Combining Space nonlinear controller, devel- oped in a synchronous frame, for a parallel three-phase boost converter, synchronous frame, three-boost converters, variable- structure control. I. INTRODUCTION PARALLEL multiphase

  18. Eikonalization of Conformal Blocks

    E-Print Network [OSTI]

    A. Liam Fitzpatrick; Jared Kaplan; Matthew T. Walters; Junpu Wang

    2015-09-10

    Classical field configurations such as the Coulomb potential and Schwarzschild solution are built from the t-channel exchange of many light degrees of freedom. We study the CFT analog of this phenomenon, which we term the `eikonalization' of conformal blocks. We show that when an operator $T$ appears in the OPE $\\mathcal{O}(x) \\mathcal{O}(0)$, then the large spin $\\ell$ Fock space states $[TT \\cdots T]_{\\ell}$ also appear in this OPE with a computable coefficient. The sum over the exchange of these Fock space states in an $\\langle \\mathcal{O} \\mathcal{O} \\mathcal{O} \\mathcal{O} \\rangle$ correlator build the classical `$T$ field' in the dual AdS description. In some limits the sum of all Fock space exchanges can be represented as the exponential of a single $T$ exchange in the 4-pt correlator of $\\mathcal{O}$. Our results should be useful for systematizing $1/\\ell$ perturbation theory in general CFTs and simplifying the computation of large spin OPE coefficients. As examples we obtain the leading $\\log \\ell$ dependence of Fock space conformal block coefficients, and we directly compute the OPE coefficients of the simplest `triple-trace' operators.

  19. Eikonalization of conformal blocks

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

    Fitzpatrick, A. Liam; Kaplan, Jared; Walters, Matthew T.; Wang, Junpu

    2015-09-03

    Classical field configurations such as the Coulomb potential and Schwarzschild solution are built from the t-channel exchange of many light degrees of freedom. We study the CFT analog of this phenomenon, which we term the 'eikonalization' of conformal blocks. We show that when an operator T appears in the OPE ?(x)?(0), then the large spin Fock space states [TT···T]? also appear in this OPE with a computable coefficient. The sum over the exchange of these Fock space states in an correlator build the classical 'T field' in the dual AdS description. In some limits the sum of all Fockmore »space exchanges can be represented as the exponential of a single T exchange in the 4-pt correlator of O. Our results should be useful for systematizing 1/? perturbation theory in general CFTs and simplifying the computation of large spin OPE coefficients. As examples we obtain the leading log ? dependence of Fock space conformal block coefficients, and we directly compute the OPE coefficients of the simplest ‘triple-trace’ operators.« less

  20. Effect of Polytetrafluoroethylene (PTFE) and micro porous layer (MPL) on thermal conductivity of fuel cell gas diffusion layers: Modeling and

    E-Print Network [OSTI]

    Bahrami, Majid

    Effect of Polytetrafluoroethylene (PTFE) and micro porous layer (MPL) on thermal conductivity robust model is devel- oped for estimating GDL thermal conductivity. The model considers PTFE addition of thermal conductivity on PTFE, MPL, and compression is considered. Thermal contact resistances between GDL

  1. 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim400 wileyonlinelibrary.com www.MaterialsViews.com

    E-Print Network [OSTI]

    Gong, Xingao

    , and light- to-electricity conversion in solar cells is one of the best-devel- oped renewable energy of ca. 30%, and the performance of multi-junction devices can now exceed 43%.[1] The limiting factors that will emerge as the demand for solar cells reaches towards the terawatt scale are material cost

  2. Tool Support for Incremental Failure Mode and Effects Analysis of Component-Based Systems

    E-Print Network [OSTI]

    ¨oping, Sweden {jonel, simin}@ida.liu.se Abstract Failure Mode and Effects Analysis (FMEA) is a well- known technique widely used for safety assessment in the area of safety-critical systems. However, FMEA is tradi systems. Also, small modifications in the design may result in a complete revision of the initial FMEA

  3. CIRQ: Qualitative fluid flow modelling for aerospace FMEA applications Neal Snooke

    E-Print Network [OSTI]

    Snooke, Neal

    M2 CIRQ: Qualitative fluid flow modelling for aerospace FMEA applications Neal Snooke Department- oped on top of the MCIRQ simulator with the aim to produce an automated FMEA for aircraft fuel systems similar to pre- viously developed automated electrical FMEA. Introduction This paper describes a circuit

  4. 1 Copyright 1999 by ASME MULTI-PHASE CFD ANALYSIS OF NATURAL AND VENTILATED CAVITATION

    E-Print Network [OSTI]

    Kunz, Robert Francis

    volume fraction transport/generation for liquid, condensable vapor and non-con- densable gas fields reduction can be realized if bodies are partially or fully envel- oped in a large natural or ventilated gas1 Copyright © 1999 by ASME MULTI-PHASE CFD ANALYSIS OF NATURAL AND VENTILATED CAVITATION ABOUT

  5. LoadBalancing Algorithms for Climate Models Ian T. Foster and Brian R. Toonen

    E-Print Network [OSTI]

    Load­Balancing Algorithms for Climate Models Ian T. Foster and Brian R. Toonen Mathematics­balancing algorithms that we have devel­ oped for PCCM2, a scalable parallel implementation of the Community Climate Model, and present exper­ imental results that demonstrate the effectiveness of these algorithms

  6. USC/ISI Technical Report ISI-TR-625, October 2006 1 Enabling Interoperability and Extensibility of Future SCADA Systems

    E-Print Network [OSTI]

    Heidemann, John

    system devel- oped for oil and gas fields, the RTUs are usually places at production wells and injection the problem without waiting. The rigid design of cur- rent RTUs makes it hard to extend the SCADA from one and extensibility of future SCADA systems. Our work is based on the application of oil and gas field monitoring

  7. Enabling Interoperability and Extensibility of Future SCADA Systems Wei Ye and John Heidemann

    E-Print Network [OSTI]

    Heidemann, John

    the sen- sor coverage. For example, in a SCADA system devel- oped for oil and gas fields, the RTUs- rent RTUs makes it hard to extend the SCADA from one application to another. This position paper argues is based on the application of oil and gas field monitoring, a collabo- rative effort between USC

  8. Protein Folding in Contact Map Space M. Vendruscolo, R. Najmanovich and E. Domany

    E-Print Network [OSTI]

    Domany, Eytan

    Protein Folding in Contact Map Space M. Vendruscolo, R. Najmanovich and E. Domany Department the contact map representation for protein folding. We devel­ oped an efficient search procedure in the space­ tational physics, chemistry and biology is that of protein folding; e.g. to predict the conformation

  9. METHODOLOGY ARTICLE Open Access Gene prioritization and clustering by multi-view

    E-Print Network [OSTI]

    for Biotechnology Informa- tion (NCBI) at the National Library of Medicine (NLM). MEDLINE covers all aspects resource for biomedical text mining applications is the MEDLINE database devel- oped by the National Center of controlled vocabularies and the representation schemes of terms occupy a cen- tral role in text mining

  10. 2006 EAAM Photogrammetric Estimates of Size and Mass in Hawaiian

    E-Print Network [OSTI]

    © 2006 EAAM Photogrammetric Estimates of Size and Mass in Hawaiian Monk Seals (Monachus-invasive photographic technique was devel- oped to estimate the body mass of Hawaiian monk seals (Monachus schauinslandi-kg weaned pups. Key Words: Hawaiian monk seals, Monachus schauinslandi, photogrammetry, morphometric

  11. Last Latexed: February 24, 2005 at 14:08 1 Physics 228, Lecture 11

    E-Print Network [OSTI]

    Coleman, Piers

    with the Planck blackbody explanation) that a coherent theory of quantum mechanics devel- oped. And as that theory electromagnetic radiation that the accelerating electron ought to be producing. The allowed orbits are those spectrum completely, including cal- culating the Rydberg constant in terms of fundamental constants! When

  12. Evaluation of a Pumping Assist Lung That Uses a Rotating Fiber Bundle

    E-Print Network [OSTI]

    Federspiel, William J.

    Evaluation of a Pumping Assist Lung That Uses a Rotating Fiber Bundle ROBERT G. SVITEK,* BRIAN J. FRANKOWSKI,* AND WILLIAM J. FEDERSPIEL,*§ A paracorporeal respiratory assist lung (PRAL) is being devel- oped for supplemental gas exchange to allow the native lungs of acute lung failure patients to heal. The device consists

  13. Hydra: A Platform for Survivable and Secure Data Storage Systems

    E-Print Network [OSTI]

    Xu, Lihao

    Hydra: A Platform for Survivable and Secure Data Storage Systems Lihao Xu Dept. of Computer Science are devel- oping for highly survivable and secure data storage systems that distribute information over on user data. We also explore Hydra's applications in survivable and secure data storage systems

  14. AWARDS: An Adaptive Write Strategy for Secure Local Disk Systems Mais Nijim, Xiao Qin

    E-Print Network [OSTI]

    Qin, Xiao

    importance for modern storage systems, it is imperative to protect stored data from being tampered or disclosed. Although an increas- ing number of secure storage systems have been devel- oped, there is no way.0% and 358.9% (with averages of 199.5% and 213.4%). 1 Introduction In the past decade, storage systems have

  15. Higher Spin Currents in Wolf Space: Part III

    E-Print Network [OSTI]

    Ahn, Changhyun

    2015-01-01

    The large N=4 linear superconformal algebra (generated by four spin-1/2 currents, seven spin-1 currents, four spin-3/2 currents and one spin-2 current) found by Sevrin, Troost and Van Proeyen (and other groups) was realized in the N=4 superconformal coset SU(5)/SU(3) theory previously. The lowest 16 higher spin currents of spins (1, 3/2, 3/2, 2), (3/2, 2, 2, 5/2), (3/2, 2, 2, 5/2) and (2, 5/2, 5/2, 3) are obtained by starting with the operator product expansions (OPEs) between the four spin-3/2 currents from the above large N=4 linear superconformal algebra and the lowest higher spin-1 current which is the same as the one in the Wolf space coset SU(5)/[SU(3) x SU(2) x U(1)] theory. These OPEs determine the four higher spin-3/2 currents and the next six higher spin-2 currents are obtained from the OPEs between the above four spin-3/2 currents associated with the N=4 supersymmetry and these four higher spin-3/2 currents. The four higher spin-5/2 currents can be determined by calculating the OPEs between the abo...

  16. DOI 10.1007/s11207-013-0295-7 Rapid Formation and Disappearance of a Filament Barb

    E-Print Network [OSTI]

    Rutten, Rob

    Solar Phys DOI 10.1007/s11207-013-0295-7 Rapid Formation and Disappearance of a Filament Barb Anand of an activated quiescent filament obtained in H from the high-resolution Dutch Open Telescope (DOT) on 20 August 2010. The filament devel- oped a barb in 10 min, which disappeared within the next 35 min. A data set

  17. Paul Mali, an alumnus with three degrees from the UConn School

    E-Print Network [OSTI]

    Chandy, John A.

    Paul Mali, an alumnus with three degrees from the UConn School of Engineering, and his wife, Mary the Paul & Mary Mali Endowed Scholarship, with preference given to deserving students from devel- oping interdisciplinary area." Dr. Mali's interest in the BME program was inspired, he says, by the program's "life saving

  18. Transfer Across the Air-Sea Interface Christoph S. Garbe, Anna Rutgersson, Jacqueline Boutin,

    E-Print Network [OSTI]

    Garbe, Christoph S.

    ): k ¼ F C0 À Cbulk : (2.1) For the transport of CO2, the water-sided transfer velocity kw is often related to the partial pressure difference pCO2 bet, several models have been devel- oped, ranging from conceptual models to numerical models. Most frequently

  19. mPuff: Automated Detection of Cigarette Smoking Puffs from Respiration Measurements

    E-Print Network [OSTI]

    Kumar, Santosh

    that accounts for one in five deaths in the United States. Extensive research is conducted on devel- oping deaths in the United States [24]. Smokers die 13-14 years younger and cost $193 billion annually [1 effective smoking cessation programs. Most smoking cessation programs achieve low success rate because

  20. Self-Triggered Control over Wireless Sensor and Actuator Networks

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Self-Triggered Control over Wireless Sensor and Actuator Networks Jos´e Ara´ujo, Adolfo Anta for the sensor and control nodes, thereby reducing energy consumption and increasing network lifetime, without- oped to reduce power consumption in WSNs. Unfortunately, the situation is much less favorable

  1. scientists, environmental scientists and others to participate in discussions about risk analysis

    E-Print Network [OSTI]

    Bongard, Josh

    and devel- oping countries, Caruso focuses on the dark side of genetically modified crops. Her book echoes to severe economic hardships, and made people and livestock sick by increasing their exposure to herbicides into the marketplace and thus into our food, our water and the air that we breathe, breeding and exchanging

  2. Published: 14 October 2013 The Revolution Egypt Needs

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 14 October 2013 The Revolution Egypt Needs Op-Ed by Ahmed H. Zewail Pasadena, California -- When I was a boy in Desuq, Egypt, a city on the Rosetta branch of the Nile, about 50 miles east was in the fabric of our culture and religion. I left Egypt in 1969 for graduate school at the University

  3. Published: 3 January 2013 Egypt's New Year

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 3 January 2013 Egypt's New Year Resolution Op-Ed by Ahmed H. Zewail CAIRO -- Egypt, is one of Egypt's largest extremist organizations. "Only when he changes his mind from being a Gamaa Brother to a national leader can we have real progress in Egypt," Mostafa said, adding: "For now

  4. Published: 6 October 2011 As Elections Loom, Egypt Must Unify

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 6 October 2011 As Elections Loom, Egypt Must Unify Op-Ed by Ahmed H. Zewail "Where is Egypt going?" a driver named Mohamed asked me recently. It is the question on everyone's mind and the building of the new City of Science and Technology. At last, it was felt, Egypt would be rejoining

  5. Published: 23 June 2011 Another Revolution Afoot in Egypt

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 23 June 2011 Another Revolution Afoot in Egypt: Top-Notch Science Egypt has launched way to cure fanaticism. Op-Ed by Ahmed H. Zewail Cairo -- Nearly 100 days after the revolution, Egypt say hawa gadid -- a new air. The big question is how to channel this energy to forge a new Egypt

  6. Published: 25 April 2011 Fund Egypt's Future to Save the Arab Uprising

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 25 April 2011 Fund Egypt's Future to Save the Arab Uprising Op-Ed by Ahmed H. Zewail. The Egyptians brought down the head of the system, but not the system itself. That is the challenge now. Egypt between them, Egypt is united. In contrast, the second model for revolutions is that of Yemen, Libya

  7. Published: 20 May 2012 Egypt's March Toward Democracy

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 20 May 2012 Egypt's March Toward Democracy Op-Ed by Ahmed H. Zewail CAIRO -- A few candidates among the 13 running for president of Egypt. This stunning debate went on for more than four hours and was watched by millions of Egyptians and other Arabs. Contrary to the perception around the world that Egypt

  8. Published: 3 November 2014 Don't Cut Aid to Egypt: The Hopeful Case for

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 3 November 2014 Don't Cut Aid to Egypt: The Hopeful Case for Supporting Egyptian President Sisi Today, the U.S. needs Egypt's partnership more than ever. Op-Ed by Ahmed H. Zewail Some support him. And I believe that cutting foreign aid to Egypt at this point would harm the U.S.-Egypt

  9. Published: 21 May 2012 Egypt's March Toward Democracy

    E-Print Network [OSTI]

    Zewail, Ahmed

    1 Published: 21 May 2012 Egypt's March Toward Democracy Op-Ed by Ahmed H. Zewail CAIRO -- A few candidates among the 13 running for president of Egypt. This stunning debate went on for more than four hours and was watched by millions of Egyptians and other Arabs. Contrary to the perception around the world that Egypt

  10. Energy-aware simulation with DVFS Tom Guerouta,b,c

    E-Print Network [OSTI]

    Calheiros, Rodrigo N.

    Energy-aware simulation with DVFS Tom Gu´erouta,b,c , Thierry Monteila,c , Georges Da Costab are specifically devel- oped for modelling networks and only a few of them simulate energy-efficiency algorithms. This article describes which tools need to be implemented in a simulator in order to compute energy

  11. The Potential of Utilizing Chaparral for Energy1 James R. S. Toland2

    E-Print Network [OSTI]

    the United States and other countries to start devel- oping technology for alternative energy systems production from direct utilization, con- version to alternative energy crops such as Jojoba, and by providing)--certainly have a strong motivation to cooperate in research and development of alternative energy sources

  12. Original Article ECG-derived cardiopulmonary analysis of pediatric sleep-disordered breathing

    E-Print Network [OSTI]

    Guo a, , Chung-Kang Peng b , Hui-Li Wu a , Joseph E. Mietus b , Yanhui Liu d , Ru-Shan Sun a , Robert may have screening utility and possibly allow tracking of treatment effects, specifically services both in devel- oped and developing countries. Even after diagnosis, objectively tracking effects

  13. As the world grapples with the need for more and cleaner energy, Duke has committed itself to meeting the challenge. Drawing upon traditions of problem-solving and multidisciplinary

    E-Print Network [OSTI]

    from energy technologies to energy economics and from U.S. environmental policy to international, and public policy majors devel- oped a working prototype of an innovative solar heat collector. To fully,000 oR moRE can build an Energy Education Fund to support valuable learning opportunities like "gateway

  14. Finite element study of multi-modal vibration damping for thermal barrier coating applications

    E-Print Network [OSTI]

    barriers for gas turbine blades, there is a growing interest in devel- oping multifunctional coatings methods is critical in many tech- nologies and especially so for gas turbine engines since many the spinning up of the turbine to avoid resonances. One of the advances made in gas turbine technologies, has

  15. Two (Related) World Views Edward N. Zalta

    E-Print Network [OSTI]

    Zalta, Edward N.

    University During the past two decades, the late Hector-Neri Casta~neda devel- oped a theory of guises, and applied that theory to the analysis of thought, language, and the structure of the world. Casta~neda. This is how Casta~neda unified his metaphysics. As imaginative and fascinating as it is, however, guise theory

  16. NEWS & VIEWS 590 nature physics | VOL 4 | AUGUST 2008 | www.nature.com/naturephysics

    E-Print Network [OSTI]

    Loss, Daniel

    de Janeiro, Rio de Janeiro, 21941-972 Brazil. e-mail: bk@if.ufrj.br D oping is a crucial process photon is absorbed, promoting the qubit to its higher-energy state, where the qubit again pushes the circuit current. The qubit energy eventually decays to its lower-energy state emitting a low-energy photon

  17. Moving Mesh Methods and Multi-Fluid Hyperbolic Problems Bibliography List

    E-Print Network [OSTI]

    Fazio, Riccardo

    . Budd and G. J. Collins. An invariant moving mesh scheme for the nonlinear diffusion equation. Appl singularity formation in lubrication-type equations for interface motion. SIAM J. Appl. Math., 56. Estimates of intermittency, spectra, and blow-up in devel- oped turbulence. Comm. Pure Appl. Math., XXXIV

  18. Vibrational energy relaxation in proteins Hiroshi Fujisaki and John E. Straub

    E-Print Network [OSTI]

    Straub, John E.

    been many theoretical tools (see Theories) devel- oped to analyze VER in proteins. Some aspects of VER, these theories have been developed to deal with VER in liquids, solids, or glasses. For recent reviews, see refs) the bath is assumed to be at thermal equilibrium, we can use quantum mechanical perturbation theory

  19. JSS Journal of Statistical Software MMMMMM YYYY, Volume VV, Issue II. http://www.jstatsoft.org/

    E-Print Network [OSTI]

    Dahl, David B.

    . The jvmr package also provides the reverse functionality for embedding JVM languages in R using, is statistically typed, and is often more concise and expressive than equivalent Java code. R is a scripting language and environment devel- oped by statisticians for statistical computing and graphics with a large

  20. Computational pproach to the Statistical echanics of rotein ol ing

    E-Print Network [OSTI]

    Istrail, Sorin

    , 1995 bstract A statistical mechanical approach to the protein folding problem is devel- oped based of the statistical mechanics of protein folding by com- puter simulation. Even though we have taken advantage of new". A theoretical understanding of the protein-folding problem, i.e. how proteins fold to their native states from

  1. Conductance states of molecular junctions for encoding binary information: a computational approach 

    E-Print Network [OSTI]

    Agapito, Luis Alberto

    2009-06-02

    -molecule-metal and metal-molecule-semiconductor junctions are considered. The molecule used is an olygo(phenylene ethynylene) composed of three benzene rings and a nitro group in the middle ring; this molecule is referred hereafter as the nitroOPE molecule. Gold, silicon...

  2. Int. J. Ad Hoc and Ubiquitous Computing, Vol. , No. , 2012 1 Worst-case Latency of Broadcast in Intermittently

    E-Print Network [OSTI]

    Int. J. Ad Hoc and Ubiquitous Computing, Vol. , No. , 2012 1 Worst-case Latency of Broadcast one year as a Research Fellow at Trinity College Dubin. He received his MSc degree in computer science and engi- neering in 2005 and his PhD in computer science in 2011 both from Link¨oping University. His Ph

  3. A Control-Oriented Analysis of Bio-inspired Visuomotor Convergence1 J. Sean Humbert

    E-Print Network [OSTI]

    Murray, Richard M.

    in the processing of retinal image pattern movement (optic flow) by the visuomotor systems of insects. Insect visual contributing to this amazing behavior is rapid processing and convergence of visual sensory information for wide-field integration of retinal image flow is devel- oped, establishing the connection between image

  4. Flat systems, equivalence and trajectory R. M. Murray

    E-Print Network [OSTI]

    Murray, Richard M.

    Flat systems, equivalence and trajectory generation Ph. Martin R. M. Murray P. Rouchon Technical report, April 2003 Abstract Flat systems, an important subclass of nonlinear control systems in- troduced the infinite dimensional geometry devel- oped by Vinogradov and coworkers: a control system is a diffiety

  5. Higher Spin Currents in Wolf Space: Part III

    E-Print Network [OSTI]

    Changhyun Ahn

    2015-04-01

    The large N=4 linear superconformal algebra (generated by four spin-1/2 currents, seven spin-1 currents, four spin-3/2 currents and one spin-2 current) found by Sevrin, Troost and Van Proeyen (and other groups) was realized in the N=4 superconformal coset SU(5)/SU(3) theory previously. The lowest 16 higher spin currents of spins (1, 3/2, 3/2, 2), (3/2, 2, 2, 5/2), (3/2, 2, 2, 5/2) and (2, 5/2, 5/2, 3) are obtained by starting with the operator product expansions (OPEs) between the four spin-3/2 currents from the above large N=4 linear superconformal algebra and the lowest higher spin-1 current which is the same as the one in the Wolf space coset SU(5)/[SU(3) x SU(2) x U(1)] theory. These OPEs determine the four higher spin-3/2 currents and the next six higher spin-2 currents are obtained from the OPEs between the above four spin-3/2 currents associated with the N=4 supersymmetry and these four higher spin-3/2 currents. The four higher spin-5/2 currents can be determined by calculating the OPEs between the above four spin-3/2 currents and the higher spin-2 currents. Similarly, the higher spin-3 current is obtained from the OPEs between the four spin-3/2 currents and the higher spin-5/2 currents. The explicit relations between the above 16 higher spin currents and the corresponding 16 higher spin currents which were found in the extension of large N=4 nonlinear superconformal algebra previously are given. By examining the OPEs between the 16 currents from the large N=4 linear superconformal algebra and the 16 higher spin currents, the match with the findings of Beccaria, Candu and Gaberdiel is also given. The next 16 higher spin currents of spins (2, 5/2, 5/2, 3), (5/2, 3, 3, 7/2), (5/2, 3, 3, 7/2) and (3, 7/2, 7/2, 4) occur from the OPEs between the above lowest 16 higher spin currents.

  6. Locally-smeared operator product expansions

    SciTech Connect (OSTI)

    Monahan, Christopher; Orginos, Kostantinos

    2014-12-01

    We propose a "locally-smeared Operator Product Expansion" (sOPE) to decompose non-local operators in terms of a basis of locally-smeared operators. The sOPE formally connects nonperturbative matrix elements of smeared degrees of freedom, determined numerically using the gradient flow, to non-local operators in the continuum. The nonperturbative matrix elements do not suffer from power-divergent mixing on the lattice, provided the smearing scale is kept fixed in the continuum limit. The presence of this smearing scale prevents a simple connection to the standard operator product expansion and therefore requires the construction of a two-scale formalism. We demonstrate the feasibility of our approach using the example of real scalar field theory.

  7. A Short Guide to Flavour Physics and CP Violation

    E-Print Network [OSTI]

    Seung J. Lee; Hugo Serôdio

    2015-04-28

    We present the invited lectures given at the second Asia-Europe-Pacific School of High-Energy Physics (AEPSHEP), which took place in Puri, India in November 2014. The series of lectures aimed at graduate students in particle experiment/theory, covering the very basics of flavor physics and CP violation, some useful theoretical methods such as OPE and effective field theories, and some selected topics of flavour physics in the era of LHC.

  8. 21 12 7 13 30 --vZ|FEl ucidati ng the mechani sms by whi ch nervous systems process i nformati on and generate

    E-Print Network [OSTI]

    Miyashita, Yasushi

    COE 21 12 7 13 30 3 3 327 "úZz·F `è ·F --vZ|·FEl ucidati ng the mechani sms by whi ch nervous ecul es and cel l s. We are investi gati ng these questi ons usi ng the nematode Caenorhabdi ti s el to mol ecul ar and cl assi cal geneti c analysi s. Usi ng recentl y devel oped methods for i n vi vo opti

  9. A Short Guide to Flavour Physics and CP Violation

    E-Print Network [OSTI]

    Lee, Seung J

    2015-01-01

    We present the invited lectures given at the second Asia-Europe-Pacific School of High-Energy Physics (AEPSHEP), which took place in Puri, India in November 2014. The series of lectures aimed at graduate students in particle experiment/theory, covering the very basics of flavor physics and CP violation, some useful theoretical methods such as OPE and effective field theories, and some selected topics of flavour physics in the era of LHC.

  10. New Derivation of Off-Shell Representations of the Multi-dimensional Affine and Virasoro Algebras

    E-Print Network [OSTI]

    T. A. Larsson

    2015-01-19

    Algebras of currents and diffeomorphisms in arbitrary dimension have extensions which generalize the affine and Virasoro algebras on the circle. A large class of off-shell representations was discovered in Comm. Math. Phys. 214 (2000) 469--491. That paper is not so accessible due to a slightly non-standard normal ordering formalism and cumbersome $p$-jet calculations. The purpose of the present paper is to simplify the derivation using standard OPE methods and a more field-like formalism.

  11. 11/15/2006 07:41 AMAye, Spy -New York Times Page 1 of 3file:///Users/jmd/Desktop/Aye,%20Spy%20-%20New%20York%20Times.html

    E-Print Network [OSTI]

    Deutch, John

    11/15/2006 07:41 AMAye, Spy - New York Times Page 1 of 3file:///Users/jmd/Desktop/Aye,%20Spy%20-%20New%20York%20Times.html Jim Frazier OP-ED COLUMNIST Aye, Spy By JOHN DEUTCH Published: November 15 #12;11/15/2006 07:41 AMAye, Spy - New York Times Page 2 of 3file:///Users/jmd/Desktop/Aye,%20Spy%20

  12. Thermal right-handed neutrino self-energy in the non-relativistic regime

    E-Print Network [OSTI]

    M. Laine

    2012-09-13

    Recently the issue of radiative corrections to leptogenesis has been raised. Considering the "strong washout" regime, in which OPE-techniques permit to streamline the setup, we report the thermal self-energy matrix of heavy right-handed neutrinos at NLO (resummed 2-loop level) in Standard Model couplings. The renormalized expression describes flavour transitions and "inclusive" decays of chemically decoupled right-handed neutrinos. Although CP-violation is not addressed, the result may find use in existing leptogenesis frameworks.

  13. Secretaries Chu and Clinton Praise Energy Cooperation Across the Americas

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed | Department of

  14. Secretaries Chu and Donovan Sign Agreement to Help Working Families

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed | Department

  15. Secretaries Chu and Donovan to Host Conference Call on Home Owners

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed |

  16. Secretaries Chu and Duncan to Host Press Conference Call to Announce

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed |National School

  17. Secretaries Chu and Duncan, NSTA Announce New Energy Education Initiative

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed |National

  18. Secretaries Chu and Salazar Lead Administration Team Offering Federal

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed

  19. New BRST Charges in RNS Superstring Theory and deformed Pure Spinors

    E-Print Network [OSTI]

    Dimitri Polyakov

    2009-06-20

    We show that new BRST charges in RNS superstring theory with nonstandard ghost numbers, constructed in our recent work, can be mapped to deformed pure spinor (PS) superstring theories, with the nilpotent pure spinor BRST charge $Q_{PS}=\\oint{\\lambda^\\alpha}d_\\alpha$ still retaining its form but with singular operator products between commuting spinor variables $\\lambda^\\alpha$. Despite the OPE singularities, the pure spinor condition $\\lambda\\gamma^m\\lambda=0$ is still fulfilled in a weak sense, explained in the paper. The operator product singularities correspond to introducing interactions between the pure spinors. We conjecture that the leading singularity orders of the OPE between two interacting pure spinors is related to the ghost number of the corresponding BRST operator in RNS formalism. Namely, it is conjectured that the BRST operators of minimal superconformal ghost numbers $n=1,2,3...$ can be mapped to nilpotent BRST operators in the deformed pure spinor formalism with the OPE of two commuting spinors having a leading singularity order $\\lambda(z)\\lambda(w)\\sim{O}(z-w)^{-2(n^2+6n+1)}$. The conjecture is checked explicitly for the first non-trivial case $n=1$.

  20. New BRST Charges in RNS Superstring Theory and deformed Pure Spinors

    E-Print Network [OSTI]

    Polyakov, Dimitri

    2009-01-01

    We show that new BRST charges in RNS superstring theory with nonstandard ghost numbers, constructed in our recent work, can be mapped to deformed pure spinor (PS) superstring theories, with the nilpotent pure spinor BRST charge $Q_{PS}=\\oint{\\lambda^\\alpha}d_\\alpha$ still retaining its form but with singular operator products between commuting spinor variables $\\lambda^\\alpha$. Despite the OPE singularities, the pure spinor condition $\\lambda\\gamma^m\\lambda=0$ is still fulfilled in a weak sense, explained in the paper. The operator product singularities correspond to introducing interactions between the pure spinors. We conjecture that the leading singularity orders of the OPE between two interacting pure spinors is related to the ghost number of the corresponding BRST operator in RNS formalism. Namely, it is conjectured that the BRST operators of minimal superconformal ghost numbers $n=1,2,3...$ can be mapped to nilpotent BRST operators in the deformed pure spinor formalism with the OPE of two commuting spin...

  1. Full accuracy differential GPS C/A code pseudorange error correction concept 

    E-Print Network [OSTI]

    Desai, Rajendra Laxman

    1983-01-01

    correction concept. Furthermore two types of plots of the eighteen satellite orbit conf'gunation of the Global Positioning System is devel oped . The first plot shows the subpoi nt of the satellste orbit on the face of the earth. Infonmation on land masses... and satellite identif'cation is included on the plot. The second plot shows a three-drmensional nepnesentation of the eanth and the actual satellite orbits anound the earth. The earth may be viewed fnom any desired latitude and longitude. Landmasses...

  2. Harvest Aids in Sorghum 

    E-Print Network [OSTI]

    Stichler, Charles; Livingston, Stephen

    2003-03-11

    moisture can harbor molds and bacteria, causing heating or ?souring? and a loss of quality. If the moist grain is stored, the risk increases for aflatoxin, which prevents interna- tional trade. Sorghum that meets the moisture specifications commands higher...- oped black layer that is clearly visible. Kernels 2, 3 and 4 were taken in descending order. Kernel 4 came from the middle of the head and shows the first external signs of the dark layer formation. Kernel 4 shows almost no signs of shrinking and...

  3. Measure Your Sew - How: Sewing Tools. 

    E-Print Network [OSTI]

    Saunders, Becky

    1979-01-01

    as needed. Pin versions require someone to help while chalk markers do not, but pin versions are more accurate. Some skirt markers combine both. T-Square. A moderate size T-square which is 9 inches (22.5 cm) long with a 4-inch (10 cm) T-bar is most... and marking or designing. Embroidery Scissors. Slender blades and needlesharp points make these scissors ideal for intricate work. Pinking or Seal/oping Shears. These shears retard raveling or provide a decorative finish. Select 7112 - to 9-inch (8...

  4. Chapters in the Legislative History of Land Distribution

    E-Print Network [OSTI]

    Brook, Elizabeth Cable

    1913-06-01

    with the lands in accordance with their gen­ eral powers over the property of the United States. Benton and Robinson made the principal speeches in oppo­ sition. Benton's was in his usual rabid manner, devel­ oping two points: that the bill was in reality a... personal approval, he pocketed the distribution bill. He had declared in 6. hl8 message at the opening of Congress that the lands were subject to the disposal of Congress , (23) hut at the same time pointed out that he thought the price should he...

  5. An engineering study of rural motor vehicle accidents in Brazos County, Texas 

    E-Print Network [OSTI]

    Schleider, Robert Herman

    1957-01-01

    ol QQI p 0 tu - de ghtt Cl 0 lmp oper turn -cut co e on left 001 p p t -fo agloe 0 O R I ood c oss g mist on 0 CI osrego d top g 0 C3 D s ego d stop-o d-go tght 0 0 Om eg d a?g sg 2 0 0 t 0 oper pore g tocat o 0 0 I p ope ta tmg t on pa ked pos...

  6. A review of "Transforming English Rural Society: The Verneys and the Claydons, 1600-1820." by John Broad 

    E-Print Network [OSTI]

    Catherine Patterson

    2005-01-01

    -making they pursued. While the author does not make an explicit argument for this, the book provides evidence for a devel- oping capitalist (or at least market-oriented) outlook among the landed gen- try. Even if the Verneys were fairly hard-nosed businessmen... the lives of the people. Broad argues that the Verneys? dealings with the people of Claydon reflects the tension between the family?s modernizing economic outlook and a strong sense of paternalism, ?modi- fied and modernised to accommodate the Puritan...

  7. Bounds on $\\mathcal{N}=1$ Superconformal Theories with Global Symmetries

    E-Print Network [OSTI]

    Micha Berkooz; Ran Yacoby; Amir Zait

    2015-01-04

    Recently, the conformal-bootstrap has been successfully used to obtain generic bounds on the spectrum and OPE coefficients of unitary conformal field theories. In practice, these bounds are obtained by assuming the existence of a scalar operator in the theory and analyzing the crossing-symmetry constraints of its 4-point function. In $\\mathcal{N}=1$ superconformal theories with a global symmetry there is always a scalar primary operator, which is the top of the current-multiplet. In this paper we analyze the crossing-symmetry constraints of the 4-point function of this operator for $\\mathcal{N}=1$ theories with $SU(N)$ global symmetry. We analyze the current-current OPE, and derive the superconformal blocks, generalizing the work of Fortin, Intrilligator and Stergiou to the non-Abelian case and finding new superconformal blocks which appear in the Abelian case. We then use these results to obtain bounds on the coefficient of the current 2-point function.

  8. Technical Letter Report: Evaluation and Analysis of a Few International Periodic Safety Review Summary Reports

    SciTech Connect (OSTI)

    Chopra, Omesh K.; Diercks, Dwight R.; Ma, David Chia-Chiun; Garud, Yogendra S.

    2013-12-17

    At the request of the United States (U.S.) government, the International Atomic Energy Agency (IAEA) assembled a team of 20 senior safety experts to review the regulatory framework for the safety of operating nuclear power plants in the United States. This review focused on the effectiveness of the regulatory functions implemented by the NRC and on its commitment to nuclear safety and continuous improvement. One suggestion resulting from that review was that the U.S. Nuclear Regulatory Commission (NRC) incorporate lessons learned from periodic safety reviews (PSRs) performed in other countries as an input to the NRC’s assessment processes. In the U.S., commercial nuclear power plants (NPPs) are granted an initial 40-year operating license, which may be renewed for additional 20-year periods, subject to complying with regulatory requirements. The NRC has established a framework through its inspection, and operational experience processes to ensure the safe operation of licensed nuclear facilities on an ongoing basis. In contrast, most other countries do not impose a specific time limit on the operating licenses for NPPs, they instead require that the utility operating the plant perform PSRs, typically at approximately 10-year intervals, to assure continued safe operation until the next assessment. The staff contracted with Argonne National Laboratory (Argonne) to perform a pilot review of selected translated PSR assessment reports and related documentation from foreign nuclear regulatory authorities to identify any potential new regulatory insights regarding license renewal-related topics and NPP operating experience (OpE). A total of 14 PSR assessment documents from 9 countries were reviewed. For all of the countries except France, individual reports were provided for each of the plants reviewed. In the case of France, three reports were provided that reviewed the performance assessment of thirty-four 900-MWe reactors of similar design commissioned between 1978 and 1988. All of the reports reviewed were the regulator’s assessment of the PSR findings rather than the original PSR report, and all but one were English translations from the original language. In these reviews, it was found that most of the countries base their regulatory guidance to some extent (and often to a large extent) on U.S. design codes and standards, NRC regulatory guidance, and U.S. industry guidance. In addition, many of the observed operational technical issues and OpE events reported for U.S. reactors are also cited in the PSR reports. The PSR reports also identified a number of potential technical material/component performance issues and OpE events that are not commonly reported for U.S. plants.

  9. Bootstrapping correlation functions in N=4 SYM

    E-Print Network [OSTI]

    Dmitry Chicherin; Reza Doobary; Burkhard Eden; Paul Heslop; Gregory P. Korchemsky; Emery Sokatchev

    2015-06-16

    We describe a new approach to computing the chiral part of correlation functions of stress-tensor supermultiplets in N=4 SYM that relies on symmetries, analytic properties and the structure of the OPE only. We demonstrate that the correlation functions are given by a linear combination of chiral N=4 superconformal invariants accompanied by coefficient functions depending on the space-time coordinates only. We present the explicit construction of these invariants and show that the six-point correlation function is fixed in the Born approximation up to four constant coefficients by its symmetries. In addition, the known asymptotic structure of the correlation function in the light-like limit fixes unambiguously these coefficients up to an overall normalization. We demonstrate that the same approach can be applied to obtain a representation for the six-point NMHV amplitude that is free from any auxiliary gauge fixing parameters, does not involve spurious poles and manifests half of the dual superconformal symmetry.

  10. Boundary and Interface CFTs from the Conformal Bootstrap

    E-Print Network [OSTI]

    F. Gliozzi; P. Liendo; M. Meineri; A. Rago

    2015-05-12

    We explore some consequences of the crossing symmetry for defect conformal field theories, focusing on codimension one defects like flat boundaries or interfaces. We study surface transitions of the 3d Ising and other O(N) models through numerical solutions to the crossing equations with the method of determinants. In the extraordinary transition, where the low-lying spectrum of the surface operators is known, we use the bootstrap equations to obtain information on the bulk spectrum of the theory. In the ordinary transition the knowledge of the low-lying bulk spectrum allows to calculate the scale dimension of the relevant surface operator, which compares well with known results of two-loop calculations in 3d. Estimates of various OPE coefficients are also obtained. We also analyze in 4-epsilon dimensions the renormalization group interface between the O(N) model and the free theory and check numerically the results in 3d.

  11. Economics of Citrus Production in the Rio Grande Valley. 

    E-Print Network [OSTI]

    Reichardt, Alan W.

    1977-01-01

    I R RIG ~ T ION IN ~ T r:p T R E E ~ r:: P LAC E M[ NT M 1 SC E"XPEN SE MI\\CHINF.RY TR ~CTOR S IRPIGATION MACHINEr.y LABO~(TRACTOO & MACHINERY' L~BOR(IRRIGATION) aT HER L AHOr:< INTEREST ON OPe C~P. SUBTOTAL. PPE-HARVEST H~RVEST COSTS....10 APPL 7.50 ~CRE 9 7 .17 ~PPL 4.00 ACqE to.Of'l ACRE '0.00 ACRE 1 8.60 ACRE 10.81 ACQE 2.5(' HOU~ 2.75 HOUR 2.50 HOUR 2.50 DOL. O. C 9 ACPE ~ ~. 4 3 ~CRE 7.43 AC~~ 5.0(' ACRE 2 2.C" ACRE 2 21') 2. I) 2 ~C~E 1200."0 & 20.00 l...

  12. Momentum dependent quark mass in two-point correlators

    E-Print Network [OSTI]

    B. Holdom; Randy Lewis

    1995-04-26

    A momentum dependent quark mass may be incorporated into a quark model in a manner consistent with dynamically broken chiral symmetry. We use this to study the high $Q^2$ behavior of the vector, axialvector, scalar and pseudoscalar two-point correlation functions. Expanding the results to order $1/Q^6$, we show the correspondence between the dynamical quark mass and the vacuum condensates which appear in the operator product expansion of QCD. We recover the correct leading logarithmic $Q^2$ dependence of the various terms in the OPE, but we also find substantial subleading corrections which are numerically huge in a specific case. We conclude by using the vector minus axialvector correlator to estimate the $\\pi^+ - \\pi^0$ electromagnetic mass difference.

  13. On linear stability and dispersion for crystals in the Schroedinger-Poisson model

    E-Print Network [OSTI]

    Alexander Komech; Elena Kopylova

    2015-08-22

    We consider the Schr\\"odinger-Poisson-Newton equations as a model of crystals. Our basic results are the stability and the dispersion decay for the linearized dynamics at the ground state for crystals with a cubic lattice and one ion per cell. This linearization is a Hamilton system with nonselfadjoint (and even nonsymmetric) generator. We diagonalize this Hamilton generator in the Bloch representation using our theory of spectral resolution of the Hamilton ope\\-rators with positive definite energy \\ci{KK2014a,KK2014b}. Using this spectral resolution, we establish the stability the dispersion decay. Our key result is the energy positivity of the Bloch generators for small elementary charge $e>0$ under a novel Wiener-type condition on the ion charge density. The corresponding examples are given. To prove the positivity we construct the asymptotics of the ground state as $e\\to 0$ and show that the minimal zero eigenvalue, corresponding to $e=0$, bifurcates into positive eigenvalues $\\sim e^2$.

  14. Decay constants of heavy-light vector mesons from QCD sum rules

    E-Print Network [OSTI]

    Patrick Gelhausen; Alexander Khodjamirian; Alexei A. Pivovarov; Denis Rosenthal

    2015-03-27

    We revisit QCD sum rules for the decay constants of heavy-light mesons. In the sum rules for the vector mesons B^*_(s) and D^*_(s) we improve the accuracy of OPE, taking into account the O(alpha_s^2) terms in the perturbative part and calculating the O(alpha_s) corrections to the quark-condensate contribution. With this accuracy, we obtain the ratios of decay constants: f_B^*/f_B=1.02 +0.07 -0.03, f_D^*/f_D=1.20 +0.10 -0.07. The sum rule predictions for the decay constants of pseudoscalar mesons are updated with the results f_B=(207 +17 -9) MeV, f_B_s=(242 +17 -12) MeV, f_D=(201 +12 -13) MeV, f_D_s=(238 +13 -23) MeV. In order to assess the sensitivity of our calculation to the form of the sum rule, we consider alternative versions such as the power moments and Borel sum rules with different weights of the spectral density. We also investigated the heavy quark limit of the sum rules for vector and pseudoscalar mesons, estimating the violations of the heavy-quark spin and flavour symmetry.

  15. Renormalization of NN Interaction with Chiral Two Pion Exchange Potential. Central Phases and the Deuteron

    E-Print Network [OSTI]

    M. Pavon Valderrama; E. Ruiz Arriola

    2006-05-05

    We analyze the renormalization of the NN interaction at low energies and the deuteron bound state through the Chiral Two Pion Exchange Potential assumed to be valid from zero to infinity. The short distance Van der Waals singularity structure of the potential as well as the requirement of orthogonality conditions on the wave functions determines that, after renormalization, in the 1S0 singlet channel and in the 3S1-3D1 triplet channel one can use the deuteron binding energy, the asymptotic D/S ratio and the S-wave scattering lengths as well as the chiral potential parameters as independent variables. We use then the asymptotic wave function normalization As of the deuteron and the singlet and triplet effective ranges to determine the chiral constants yielding c1, c3 and c4. The role of finite cut-off corrections, the loss of predictive power due to uncertainties in the input data and the connection to OPE distorted waves perturbative approaches is also discussed.

  16. Stellarator Coil Design and Plasma Sensitivity

    SciTech Connect (OSTI)

    Long-Poe Ku and Allen H. Boozer

    2010-11-03

    The rich information contained in the plasma response to external magnetic perturbations can be used to help design stellarator coils more effectively. We demonstrate the feasibility by first devel- oping a simple, direct method to study perturbations in stellarators that do not break stellarator symmetry and periodicity. The method applies a small perturbation to the plasma boundary and evaluates the resulting perturbed free-boundary equilibrium to build up a sensitivity matrix for the important physics attributes of the underlying configuration. Using this sensitivity information, design methods for better stellarator coils are then developed. The procedure and a proof-of-principle application are given that (1) determine the spatial distributions of external normal magnetic field at the location of the unperturbed plasma boundary to which the plasma properties are most sen- sitive, (2) determine the distributions of external normal magnetic field that can be produced most efficiently by distant coils, (3) choose the ratios of the magnitudes of the the efficiently produced magnetic distributions so the sensitive plasma properties can be controlled. Using these methods, sets of modular coils are found for the National Compact Stellarator Experiment (NCSX) that are either smoother or can be located much farther from the plasma boundary than those of the present design.

  17. Accelerated Nodal Discontinuous Galerkin Simulations for Reverse Time Migration with Large Clusters

    E-Print Network [OSTI]

    Modave, Axel; Mulder, Wim A; Warburton, Tim

    2015-01-01

    Improving both accuracy and computational performance of numerical tools is a major challenge for seismic imaging and generally requires specialized implementations to make full use of modern parallel architectures. We present a computational strategy for reverse-time migration (RTM) with accelerator-aided clusters. A new imaging condition computed from the pressure and velocity fields is introduced. The model solver is based on a high-order discontinuous Galerkin time-domain (DGTD) method for the pressure-velocity system with unstructured meshes and multi-rate local time-stepping. We adopted the MPI+X approach for distributed programming where X is a threaded programming model. In this work we chose OCCA, a unified framework that makes use of major multi-threading languages (e.g. CUDA and OpenCL) and offers the flexibility to run on several hardware architectures. DGTD schemes are suitable for efficient computations with accelerators thanks to localized element-to-element coupling and the dense algebraic ope...

  18. One-point Functions in AdS/dCFT from Matrix Product States

    E-Print Network [OSTI]

    Buhl-Mortensen, Isak; Kristjansen, Charlotte; Zarembo, Konstantin

    2015-01-01

    One-point functions of certain non-protected scalar operators in the defect CFT dual to the D3-D5 probe brane system with k units of world volume flux can be expressed as overlaps between Bethe eigenstates of the Heisenberg spin chain and a matrix product state. We present a closed expression of determinant form for these one-point functions, valid for any value of k. The determinant formula factorizes into the k=2 result times a k-dependent prefactor. Making use of the transfer matrix of the Heisenberg spin chain we recursively relate the matrix product state for higher even and odd k to the matrix product state for k=2 and k=3 respectively. We furthermore find evidence that the matrix product states for k=2 and k=3 are related via a ratio of Baxter's Q-operators. The general k formula has an interesting thermodynamical limit involving a non-trivial scaling of k, which indicates that the match between string and field theory one-point functions found for chiral primaries might be tested for non-protected ope...

  19. On the soft limit of open string amplitudes with massive states

    E-Print Network [OSTI]

    Bianchi, Massimo

    2015-01-01

    We discuss the soft behaviour of open string amplitudes with gluons and massive states in any dimension. Notwithstanding non-minimal couplings of massive higher spin states to gluons, relying on OPE and factorization, we argue that the leading and sub-leading terms are universal and identical to the ones in Yang-Mills theories. In order to illustrate this, we compute some 4-point amplitudes on the disk involving gluons, massive states and, for the bosonic string, tachyons. For the superstring, we revisit the structure of the massive super-multiplets at the first massive level and rewrite the amplitudes in D = 4 in the spinor helicity formalism, that we adapt to accommodate massive higher spin states. We also check the validity of a recently proposed formula relating open superstring amplitudes for mass-less states at tree-level to SYM amplitudes, by factorisation on two-particle massive poles. Finally we analyse the holomorphic soft limit of superstring amplitudes with one massive insertion.

  20. Using architecture information and real-time resource state to reduce power consumption and communication costs in parallel applications.

    SciTech Connect (OSTI)

    Brandt, James M.; Devine, Karen D.; Gentile, Ann C.; Leung, Vitus J.; Olivier, Stephen Lecler; Pedretti, Kevin; Rajamanickam, Sivasankaran; Bunde, David P.; Deveci, Mehmet; Catalyurek, Umit V.

    2014-09-01

    As computer systems grow in both size and complexity, the need for applications and run-time systems to adjust to their dynamic environment also grows. The goal of the RAAMP LDRD was to combine static architecture information and real-time system state with algorithms to conserve power, reduce communication costs, and avoid network contention. We devel- oped new data collection and aggregation tools to extract static hardware information (e.g., node/core hierarchy, network routing) as well as real-time performance data (e.g., CPU uti- lization, power consumption, memory bandwidth saturation, percentage of used bandwidth, number of network stalls). We created application interfaces that allowed this data to be used easily by algorithms. Finally, we demonstrated the benefit of integrating system and application information for two use cases. The first used real-time power consumption and memory bandwidth saturation data to throttle concurrency to save power without increasing application execution time. The second used static or real-time network traffic information to reduce or avoid network congestion by remapping MPI tasks to allocated processors. Results from our work are summarized in this report; more details are available in our publications [2, 6, 14, 16, 22, 29, 38, 44, 51, 54].

  1. Positive Energy Conditions in 4D Conformal Field Theory

    E-Print Network [OSTI]

    Farnsworth, Kara; Prilepina, Valentina

    2015-01-01

    We argue that all consistent 4D quantum field theories obey a spacetime-averaged weak energy inequality $\\langle T^{00} \\rangle \\ge -C/L^4$, where $L$ is the size of the smearing region, and $C$ is a positive constant that depends on the theory. If this condition is violated, the theory has states that are indistinguishable from states of negative total energy by any local measurement, and we expect instabilities or other inconsistencies. We apply this condition to 4D conformal field theories, and find that it places constraints on the OPE coefficients of the theory. The constraints we find are weaker than the "conformal collider" constraints of Hofman and Maldacena. We speculate that there may be theories that violate the Hofman-Maldacena bounds, but satisfy our bounds. In 3D CFTs, the only constraint we find is equivalent to the positivity of 2-point function of the energy-momentum tensor, which follows from unitarity. Our calculations are performed using momentum-space Wightman functions, which are remarka...

  2. Real-Time Control of Diesel Combustion Quality

    SciTech Connect (OSTI)

    Wagner, R.M.; Sisken, K (Detroit Diesel Corp.)

    2010-06-30

    Detroit Diesel Corporation (DDC) and ORNL established this CRADA to improve heavy-duty engine efficiency with reduced emissions at relatively extreme operating regimes such has high EGR, low-load, and cold-start, with an emphasis on the application of advanced control strategies. The approach used in this collaborative effort was to include the application of novel analysis and modeling techniques devel-oped from the application of nonlinear dynamics and chaos theory. More specifically, analytical tech-niques derived from these theories were to used to detect, characterize, and control the combustion insta-bilities that are responsible for poor combustion performance and corresponding high emissions. The foundation of this CRADA was established based on ORNL expertise on the fundamentals of ad-vanced combustion operation and experience with nonlinear dynamics and controls in combustion sys-tems. The initial plan was all data generation would be performed at DDC with an agreed upon experi-mental plan formed by both organizations. While numerous experiments were performed at DDC and the data was exchanged with ORNL researchers, the team decided to transfer an engine to ORNL to allow more flexibility and data generation opportunities. A prototype DDC Series 60 with a common rail fuel system was selected and installed at ORNL. DDC and ORNL maintained a strong collaboration throughout much of this project. Direct funding from DOE ended in 2004 and DDC continued to fund at a reduced amount through 2007. This CRADA has not been funded in more recent years but has been maintained active in anticipation of restored funding. This CRADA has led to additional collaborations between DDC and ORNL.

  3. The Earth System Grid Center for Enabling Technologies: Focusing Technologies on Climate Datasets and Resource Needs

    SciTech Connect (OSTI)

    Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2007-09-26

    This report discusses a project that used prototyping technology to access and analyze climate data. This project was initially funded under the DOE’s Next Generation Internet (NGI) program, with follow-on support from BER and the Mathematical, Information, and Computational Sciences (MICS) office. In this prototype, we developed Data Grid technologies for managing the movement and replication of large datasets, and applied these technologies in a practical setting (i.e., an ESG-enabled data browser based on current climate data analysis tools), achieving cross-country transfer rates of more than 500 Mb/s. Having demonstrated the potential for remotely accessing and analyzing climate data located at sites across the U.S., we won the “Hottest Infrastructure” award in the Network Challenge event. While the ESG I prototype project substantiated a proof of concept (“Turning Climate Datasets into Community Resources”), the SciDAC Earth System Grid (ESG) II project made this a reality. Our efforts targeted the development of metadata technologies (standard schema, XML metadata extraction based on netCDF, and a Metadata Catalog Service), security technologies (Web-based user registration and authentication, and community authorization), data transport technologies (GridFTPenabled OPeNDAP-G for high-performance access, robust multiple file transport and integration with mass storage systems, and support for dataset aggregation and subsetting), as well as web portal technologies to provide interactive access to climate data holdings. At this point, the technology was in place and assembled, and ESG II was poised to make a substantial impact on the climate modelling community.

  4. BEAM DYNAMICS IN NS-FFAG EMMAWITH DYNAMICAL MAPS

    E-Print Network [OSTI]

    Giboudot, Y; Edgecock, R; Wolski, A

    2010-01-01

    The Non Scal­ing Fixed Field Al­ter­nat­ing Gra­di­ent EMMA has a com­pact lin­ear lat­tice. Ef­fect of Fringe Field on the beam has to be stud­ied care­ful­ly. A nu­mer­i­cal mag­net­ic field map is gen­er­at­ed by mag­net mea­sure­ments or mag­net de­sign soft­wares. We de­vel­oped a tech­nique that pro­duces from the nu­mer­i­cal field map, a dy­nam­i­cal map for a par­ti­cle trav­el­ling in the en­tire EMMA cell for a ref­er­ence en­er­gy with­out ac­cel­er­a­tion. Since the beam dy­nam­ics change with en­er­gy, a set of maps have been pro­duce with dif­fer­ent ref­er­ence en­er­gies be­tween 10 and 20MeV. For each ref­er­ence en­er­gy, sim­u­lat­ed tune and time of flight (TOF) have been com­pared with re­sults in Zgoubi - track­ing di­rect­ly through nu­mer­i­cal field map. The range of va­lid­i­ty of a sin­gle map has been in­ves­ti­gat­ed by track­ing par­ti­cle with large en­er­gy de­vi­a­tion. From that, a ...

  5. Earth System Grid Center for Enabling Technologies (ESG-CET): A Data Infrastructure for Data-Intensive Climate Research

    SciTech Connect (OSTI)

    Williams, Dean N.

    2011-06-03

    For the Earth System Grid Federation (ESGF), the ESG-CET team has led international development and delivered a production environment for managing and accessing ultrascale climate data. This production environment includes multiple national and international climate projects (e.g., Couple Model Intercomparison Project, Community Earth System Model), ocean model data (such as the Parallel Ocean Program), observation data (Carbon Dioxide Information and Analysis Center, Atmospheric Infrared Sounder, and so forth), and analysis and visualization tools, all of which serve a diverse community of users. These data holdings and services are distributed across multiple ESG-CET sites (such as LANL, LBNL, LLNL, NCAR, and ORNL) as well as at unfunded partners sites such as the Australian National University National Computational Infrastructure, the British Atmospheric Data Centre, the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory, the Max Planck Institute for Meteorology, the German Climate Computing Centre, and the National Aeronautics and Space Administration Jet Propulsion Laboratory. More recently, ESG-CET has been extending services beyond data-file access and delivery to develop more detailed information products (scientific graphics, animations, etc.), secure binary data-access services (based upon the OPeNDAP protocol), and server-side analysis capabilities. These will allow users to request data subsets transformed through commonly used analysis and intercomparison procedures. As we transition from development activities to production and operations, the ESG-CET team is tasked with making data available to all users seeking to understand, process, extract value from, visualize, and/or communicate it to others. This ongoing effort, though daunting in scope and complexity, will greatly magnify the value of numerical climate model outputs and climate observations for future national and international climate-assessment reports. Continued ESGF progress will result in a production ultrascale data system for empowering scientists who attempt new and exciting data exchanges that could ultimately lead to breakthrough climate-science discoveries.

  6. DOE SciDAC's Earth System Grid Center for Enabling Technologies Final Report

    SciTech Connect (OSTI)

    Williams, Dean N.

    2011-09-27

    The mission of the Earth System Grid Federation (ESGF) is to provide the worldwide climate-research community with access to the data, information, model codes, analysis tools, and intercomparison capabilities required to make sense of enormous climate data sets. Its specific goals are to (1) provide an easy-to-use and secure web-based data access environment for data sets; (2) add value to individual data sets by presenting them in the context of other data sets and tools for comparative analysis; (3) address the specific requirements of participating organizations with respect to bandwidth, access restrictions, and replication; (4) ensure that the data are readily accessible through the analysis and visualization tools used by the climate research community; and (5) transfer infrastructure advances to other domain areas. For the ESGF, the U.S. Department of Energy's (DOE's) Earth System Grid Center for Enabling Technologies (ESG-CET) team has led international development and delivered a production environment for managing and accessing ultra-scale climate data. This production environment includes multiple national and international climate projects (such as the Community Earth System Model and the Coupled Model Intercomparison Project), ocean model data (such as the Parallel Ocean Program), observation data (Atmospheric Radiation Measurement Best Estimate, Carbon Dioxide Information and Analysis Center, Atmospheric Infrared Sounder, etc.), and analysis and visualization tools, all serving a diverse user community. These data holdings and services are distributed across multiple ESG-CET sites (such as ANL, LANL, LBNL/NERSC, LLNL/PCMDI, NCAR, and ORNL) and at unfunded partner sites, such as the Australian National University National Computational Infrastructure, the British Atmospheric Data Centre, the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory, the Max Planck Institute for Meteorology, the German Climate Computing Centre, the National Aeronautics and Space Administration Jet Propulsion Laboratory, and the National Oceanic and Atmospheric Administration. The ESGF software is distinguished from other collaborative knowledge systems in the climate community by its widespread adoption, federation capabilities, and broad developer base. It is the leading source for present climate data holdings, including the most important and largest data sets in the global-climate community, and - assuming its development continues - we expect it to be the leading source for future climate data holdings as well. Recently, ESG-CET extended its services beyond data-file access and delivery to include more detailed information products (scientific graphics, animations, etc.), secure binary data-access services (based upon the OPeNDAP protocol), and server-side analysis. The latter capabilities allow users to request data subsets transformed through commonly used analysis and intercomparison procedures. As we transition from development activities to production and operations, the ESG-CET team is tasked with making data available to all users seeking to understand, process, extract value from, visualize, and/or communicate it to others. This ongoing effort, though daunting in scope and complexity, will greatly magnify the value of numerical climate model outputs and climate observations for future national and international climate-assessment reports. The ESG-CET team also faces substantial technical challenges due to the rapidly increasing scale of climate simulation and observational data, which will grow, for example, from less than 50 terabytes for the last Intergovernmental Panel on Climate Change (IPCC) assessment to multiple Petabytes for the next IPCC assessment. In a world of exponential technological change and rapidly growing sophistication in climate data analysis, an infrastructure such as ESGF must constantly evolve if it is to remain relevant and useful. Regretfully, we submit our final report at the end of project funding. To continue to serve the climate-science community, we are

  7. Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 2.

    SciTech Connect (OSTI)

    Thornton, Peter E [ORNL; Thornton, Michele M [ORNL; Mayer, Benjamin W [ORNL; Wilhelmi, Nate [National Center for Atmospheric Research (NCAR); Wei, Yaxing [ORNL; Devarakonda, Ranjeet [ORNL; Cook, Robert B [ORNL

    2014-01-01

    More information: http://daymet.ornl.gov Presenter: Ranjeet Devarakonda Environmental Sciences Division Oak Ridge National Laboratory (ORNL) Daymet: Daily Surface Weather Data and Climatological Summaries provides gridded estimates of daily weather parameters for North America, including daily continuous surfaces of minimum and maximum temperature, precipitation occurrence and amount, humidity, shortwave radiation, snow water equivalent, and day length. The current data product (Version 2) covers the period January 1, 1980 to December 31, 2013 [1]. The prior product (Version 1) only covered from 1980-2008. Data are available on a daily time step at a 1-km x 1-km spatial resolution in Lambert Conformal Conic projection with a spatial extent that covers the conterminous United States, Mexico, and Southern Canada as meteorological station density allows. Daymet data can be downloaded from 1) the ORNL Distributed Active Archive Center (DAAC) search and order tools (http://daac.ornl.gov/cgi-bin/cart/add2cart.pl?add=1219) or directly from the DAAC FTP site (http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1219) and 2) the Single Pixel Tool [2] and THREDDS (Thematic Real-time Environmental Data Services) Data Server [3]. The Single Pixel Data Extraction Tool allows users to enter a single geographic point by latitude and longitude in decimal degrees. A routine is executed that translates the (lon, lat) coordinates into projected Daymet (x,y) coordinates. These coordinates are used to access the Daymet database of daily-interpolated surface weather variables. Daily data from the nearest 1 km x 1 km Daymet grid cell are extracted from the database and formatted as a table with one column for each Daymet variable and one row for each day. All daily data for selected years are returned as a single (long) table, formatted for display in the browser window. At the top of this table is a link to the same data in a simple comma-separated text format, suitable for import into a spreadsheet or other data analysis software. The Single Pixel Data Extraction Tool also provides the option to download multiple coordinates programmatically. A multiple extractor script is freely available to download at http://daymet.ornl.gov/files/daymet.zip. The ORNL DAAC s THREDDS data server (TDS) provides customized visualization and access to Daymet time series of North American mosaics. Users can subset and download Daymet data via a variety of community standards, including OPeNDAP, NetCDF Subset service, and Open Geospatial Consortium (OGC) Web Map/Coverage Service. The ORNL DAAC TDS also exposes Daymet metadata through its ncISO service to facilitate harvesting Daymet metadata records into 3rd party catalogs. References: [1] Thornton, P.E., M.M. Thornton, B.W. Mayer, N. Wilhelmi, Y. Wei, R. Devarakonda, and R.B. Cook. 2014. Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 2. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, USA. [2] Devarakonda R., et al. 2012. Daymet: Single Pixel Data Extraction Tool. Available on-line [http://daymet.ornl.go/singlepixel.html]. [3] Wei Y., et al. 2014. Daymet: Thematic Real-time Environmental Data Services. Available on-line [http://daymet.ornl.gov/thredds_tiles.html].

  8. Continuous Severe Plastic Deformation Processing of Aluminum Alloys

    SciTech Connect (OSTI)

    Raghavan Srinivasan (PI); Prabir K. Chaudhury; Balakrishna Cherukuri; Qingyou Han; David Swenson; Percy Gros

    2006-06-30

    Metals with grain sizes smaller than 1-micrometer have received much attention in the past decade. These materials have been classified as ultra fine grain (UFG) materials (grain sizes in the range of 100 to 1000-nm) and nano-materials (grain size <100-nm) depending on the grain size. This report addresses the production of bulk UFG metals through the use of severe plastic deformation processing, and their subsequent use as stock material for further thermomechanical processing, such as forging. A number of severe plastic deformation (SPD) methods for producing bulk UFG metals have been developed since the early 1990s. The most promising of these processes for producing large size stock that is suitable for forging is the equal channel angular extrusion or pressing (ECAE/P) process. This process involves introducing large shear strain in the work-piece by pushing it through a die that consists of two channels with the same cross-sectional shape that meet at an angle to each other. Since the cross-sections of the two channels are the same, the extruded product can be re-inserted into the entrance channel and pushed again through the die. Repeated extrusion through the ECAE/P die accumulates sufficient strain to breakdown the microstructure and produce ultra fine grain size. It is well known that metals with very fine grain sizes (< 10-micrometer) have higher strain rate sensitivity and greater elongation to failure at elevated temperature, exhibiting superplastic behavior. However, this superplastic behavior is usually manifest at high temperature (> half the melting temperature on the absolute scale) and very low strain rates (< 0.0001/s). UFG metals have been shown to exhibit superplastic characteristics at lower temperature and higher strain rates, making this phenomenon more practical for manufacturing. This enables part unitization and forging more complex and net shape parts. Laboratory studies have shown that this is particularly true for UFG metals produced by SPD techniques. This combination of properties makes UFG metals produced by SPD very attractive as machining, forging or extrusion stock, both from the point of view of formability as well as energy and cost saving. However, prior to this work there had been no attempt to transfer these potential benefits observed in the laboratory scale to industrial shop floor. The primary reason for this was that the laboratory scale studies had been conducted to develop a scientific understanding of the processes that result in grain refinement during SPD. Samples that had been prepared in the laboratory scale were typically only about 10-mm diameter and 50-mm long (about 0.5-inch diameter and 2-inches long). The thrust of this project was three-fold: (i) to show that the ECAE/P process can be scaled up to produce long samples, i.e., a continuous severe plastic deformation (CSPD) process, (ii) show the process can be scaled up to produce large cross section samples that could be used as forging stock, and (iii) use the large cross-section samples to produce industrial size forgings and demonstrate the potential energy and cost savings that can be realized if SPD processed stock is adopted by the forging industry. Aluminum alloy AA-6061 was chosen to demonstrate the feasibility of the approach used. The CSPD process developed using the principles of chamber-less extrusion and drawing, and was demonstrated using rolling and wire drawing equipment that was available at Oak Ridge National Laboratory. In a parallel effort, ECAE/P dies were developed for producing 100-mm square cross section SPD billets for subsequent forging. This work was carried out at Intercontinental Manufacturing Co. (IMCO), Garland TX. Forging studies conducted with the ECAE/P billets showed that many of the potential benefits of using UFG material can be realized. In particular, the material yield can be increased, and the amount of material that is lost as scrap can be reduced by as much as 50%. Forging temperatures can also be reduced by over 150ºC, resulting in energy savings in the ope

  9. Experimental Measurement of the Flow Field of Heavy Trucks

    SciTech Connect (OSTI)

    Fred Browand; Charles Radovich

    2005-05-31

    Flat flaps that enclose the trailer base on the sides and top are known to reduce truck drag and reduce fuel consumption. Such flapped-truck geometries have been studied in laboratory wind tunnels and in field tests. A recent review of wind tunnel data for a variety of truck geometries and flow Reynolds numbers show roughly similar values of peak drag reduction, but differ in the determination of the optimum flap angle. Optimum angles lie in the range 12 degrees-20 degrees, and may be sensitive to Reynolds number and truck geometry. The present field test is undertaken to provide additional estimates of the magnitude of the savings to be expected on a typical truck for five flap angles 10, 13, 16, 19, and 22 degrees. The flaps are constructed from a fiberglass-epoxy-matrix material and are one-quarter of the base width in length (about 61 cm, or 2 feet). They are attached along the rear door hinge lines on either side of the trailer, so that no gap appears at the joint between the flap and the side of the trailer The flap angle is adjusted by means of two aluminum supports. The present test is performed on the NASA Crows Landing Flight Facility at the northern end of the San Joaquin valley in California. The main runway is approximately 2400 meters in length, and is aligned approximately in a north-south direction The test procedure is to make a series of runs starting at either end of the runway. All runs are initiated under computer control to accelerate the truck to a target speed of 60 mph (96 6 km/hr), to proceed at the target speed for a fixed distance, and to decelerate at the far end of the runway. During a run, the broadcast fuel rate, the engine rpm, forward speed, elapsed time--as well as several other parameters (10 in all)--are digitized at a rate of 100 digitizations per second. Various flapped-conditions are interspersed with the ''no flaps'' control, and are sequenced in a different order on different days. Approximately 310 runs are accumulated over the 5-day test period, May 17-21, 2004. The runway slopes rather uniformly upward from north-to-south. Over the distance of 2424 meters between our two ''start'' markers at either end of the runway, the net change in elevation is a little over ten meters. Test results clearly show the greater fuel consumption required to lift the truck against gravity in the southbound direction For this reason, it is important that the tests be averaged over a round trip circuit--that is, a run in both directions over the identical portion of the roadway. Northbound-southbound averages require an overlap segment of the runway (near the middle of the runway) where the truck--starting from either end--has achieved its target speed. For the target truck speed of 60 mph, this overlap region is approximately 700 meters in length. Typically a run and the return run are accomplished within a time interval of 6 minutes. Analysis of the data show fuel consumption savings at all flap angle settings tested, when compared to the ''no flaps'' condition. The most beneficial flap angle appears to be 13 degrees, for which the fuel consumption is 0.3778 {+-} 0.0025 liters/km compared to the ''no flaps'' control of 0.3941 {+-} 0.0034 liters/km. The error bounds expressed above mark the 99% confidence interval in the mean values given. That is, additional estimates of the mean fuel consumption would be expected to lie within the bounds given, approximately 99% of the time. The fuel consumption saving is--to reasonable accuracy--about 1.63 liters/100 kilometers. These savings represent the increment associated only with the change in drag due to the presence or absence of flaps. The result will hold for any truck of similar size and shape and engine performance regardless of the loading of the truck or the rolling resistance. The economy achieved by use of base flaps can be compared to the economy resulting from driving two trucks in a tandem configuration. In December 2003, such fuel consumption tests were performed at the same Crows Landing testsite. In the tests, two identical trucks are ope