Sample records for feng dian limited

  1. Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited...

    Open Energy Info (EERE)

    Company) Place: Jiaozuo, Henan Province, China Sector: Wind energy Product: Wind turbine blades provider. References: Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng...

  2. Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpen EnergyBoard"Starting a new page Jump| Open Energy

  3. CURRICULUM VITAE DIANE R. WAGNER

    E-Print Network [OSTI]

    Wagner, Diane R.

    CURRICULUM VITAE DIANE R. WAGNER Department of Aerospace and Mechanical Engineering tel: (574) 631 design concept to production manufacturing. #12;Diane R. Wagner Curriculum Vitae PROFESSIONAL RECOGNITION

  4. Yejun Feng

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste andAnniversary, part 2 ContinuingYan Mei Wang Yan MeiYejun Feng

  5. Zhilan Feng: Publications

    E-Print Network [OSTI]

    ... Manore, C., Peace, A., Feng, Z., Intermittent preventive treatment (IPT) and the spread ... Vogt Geisse, K., Alvey, C., Feng, Z., Impact of age-dependent relapse and ... and between-host dynamics in an environmentally-driven infectious disease, .... D. and Zhao, H., Epidemiological models with non-exponentially distributed ...

  6. Ningbo Feng Shen Feng Dian Science and Technology Co Ltd | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoading map...(Utility Company) Jump to:City) JumpOpen EnergyNiederwald,Niles is a

  7. Dian Grueneich | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMPRelated Path DependenceDiamond BasedDian

  8. QER- Comment of Diane Kolakoski 1

    Broader source: Energy.gov [DOE]

    I am opposed to proposed pipeline. It is wrong to take private and protected land for the profit of a polluting, greedy private industry and require us to pay the bill through a proposed tariff. Money should be spent instead on conserving energy and renewable energy. No to fracking. No to environmentally damaging corporations. Stay out of Deerfield. Out of Massachusetts. Ban fracking altogether. Diane Kolakoski

  9. VBA-0011- In the Matter of Diane E. Meier

    Broader source: Energy.gov [DOE]

    On January 11, 2000, Diane E. Meier (Meier) filed a Notice of Appeal from an Initial Agency Decision by a Hearing Officer from the Office of Hearings and Appeals (OHA) of the Department of Energy ...

  10. Kamran Khan Vice Provost for IT Diane Butler, Assistant University

    E-Print Network [OSTI]

    Robert Castillo Edmond Jasinski Dora Lomeli *Edwin Martinez Eron Montes Zack Pruit Christopher Ramirez Services Management Team Diane Swain Michael Harrison Christopher Cole Paul Engle Daniel Harty Dean Lane Geoffrey Marsh ________________ Ash Semien Telecommunications Keith Kostelecky, Manager IT Security Office

  11. VBH-0011- In the Matter of Diane E. Meier

    Broader source: Energy.gov [DOE]

    This Decision involves a complaint filed by Diane E. Meier (Meier or “the complainant”) under the Department of Energy (DOE) Contractor Employee Protection Program, 10 C.F.R. Part 708. Meier is the...

  12. Mining the Home Environment Diane J. Cook and Narayanan Krishnan

    E-Print Network [OSTI]

    Cook, Diane J.

    Mining the Home Environment Diane J. Cook and Narayanan Krishnan Washington State University in their home or workplace and for many, these places are our sanctuaries. As society and technology advance there is a growing interest in improving the intelligence of the environments in which we live and work. By filling

  13. From: Diane Ragsdale To: Congestion Study Comments Subject:

    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:YearRound-UpHeatMulti-Dimensional Electrical Resistivityconnie0:59 PM I34 AM To:Deb LongDiane

  14. Mission Summary Report Authors of report: Robert Ballard, Feng Hsiao, Alyssa Sockol

    E-Print Network [OSTI]

    Ballard, Feng Hsiao, Alyssa Sockol, Gary Grunseich Support Team: L. Blake, J. Blake Mission Number: IOP 12

  15. Potatoes, Peppers and Eggplant Diane Relf, Extension Specialist, Horticulture, Virginia Tech

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Potatoes, Peppers and Eggplant Diane Relf, Extension Specialist, Horticulture, Virginia Tech Alan McDaniel, Extension Specialist, Horticulture, Virginia Tech Potatoes Environmental Preferences LIGHT- skinned potatoes can be grown asanearlycropfornewpotatoes and as a late crop for storage. Choose an early

  16. Diane McKnight Department of Civil, Environmental and Architectural Engineering, University of

    E-Print Network [OSTI]

    Slatton, Clint

    Diane McKnight Department of Civil, Environmental and Architectural Engineering, University-1996 Professor of Civil, Environmental and Architectural Engineering, University of Colorado, 1996-present Fellow of Interest and Expertise: limnologist and environmental engineer; aquatic ecology of algae in lakes

  17. A note on the completion of partial latin Nicholas J. Cavenagh, Diane Donovan

    E-Print Network [OSTI]

    van Rees, John

    A note on the completion of partial latin squares Nicholas J. Cavenagh, Diane Donovan Centre]. Recently, Bryant and Rodger [6] established necessary and sufficient conditions for completing an arbitary

  18. Linn Havelick From: White, Diane K [white.diane@cleanharbors.com

    E-Print Network [OSTI]

    : ", including but not limited to removal of the waste disposed of by Customer to another disposal facility: 781-792-5901 CONFIDENTIALITY NOTICE: This electronic mail message and attached documents contain, distribution or the taking of any action in reliance on the contents of this electronic mail information

  19. Home Networking Xinhua Feng, xinhua@cse.ohio-state.edu

    E-Print Network [OSTI]

    Jain, Raj

    and dryers, heating and air conditioning thermostats, home security systems, and home automation controlsHome Networking Xinhua Feng, xinhua@cse.ohio-state.edu Abstract This report discusses keypoints and overviews in related home networking literature. After introduction, five specific technologies (LAN

  20. Construct Mechanical Pike and Tow Tank Chengcheng Feng

    E-Print Network [OSTI]

    Mountziaris, T. J.

    Construct Mechanical Pike and Tow Tank Chengcheng Feng Faculty Mentor: Professor Yahya Modarres to study the influence of different parameters on acceleration. My second goal is to build a water tank by using a particle image velocimetry (PIV) system. This tank is a testing platform that can be utilized

  1. Feng Fa Science and Technology | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpen Energy InformationInformation Royalty Management ActFeng

  2. Limiter

    DOE Patents [OSTI]

    Cohen, S.A.; Hosea, J.C.; Timberlake, J.R.

    1984-10-19T23:59:59.000Z

    A limiter with a specially contoured front face is provided. The front face of the limiter (the plasma-side face) is flat with a central indentation. In addition, the limiter shape is cylindrically symmetric so that the limiter can be rotated for greater heat distribution. This limiter shape accommodates the various power scrape-off distances lambda p, which depend on the parallel velocity, V/sub parallel/, of the impacting particles.

  3. Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl

    E-Print Network [OSTI]

    Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl 865-946-1475 865-946-1236 Center for Transportation Analysis News Oak Ridge National to members of the Kentucky Transportation Cabinet and the Kentucky Transportation Center. The purpose

  4. Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl

    E-Print Network [OSTI]

    Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl 865-946-1475 865-946-1236 Center for Transportation Analysis News Oak Ridge National, during the Chairman's Luncheon at the 92nd Annual Transportation Research Board (TRB) Meeting

  5. Energy Outlier Detection in Smart Environments Chao Chen and Diane Cook

    E-Print Network [OSTI]

    Cook, Diane J.

    Energy Outlier Detection in Smart Environments Chao Chen and Diane Cook School of Electrical series energy data into a symbol se- quence, and then extend a suffix tree data structure as an efficient into a symbol sequence, then discovers energy patterns using a suffix tree (Gusfield 1997). The results

  6. Keeping the Intelligent Environment Resident in the Loop Parisa Rashidi and Diane J. Cook*

    E-Print Network [OSTI]

    Cook, Diane J.

    Keeping the Intelligent Environment Resident in the Loop Parisa Rashidi and Diane J. Cook* *School will become part of our everyday environments. However, many of these technologies are brittle and do and requests. 1 Introduction Recently there has been extensive research to develop smart environments

  7. Small Fruit in the Home Garden Diane Relf, Extension Specialist, Environmental Horticulture, Virginia Tech

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    1 Small Fruit in the Home Garden Diane Relf, Extension Specialist, Environmental Horticulture, Virginia Tech Jerry Williams, Associate Professor, Horticulture, Virginia Tech The small fruits offer advantages over fruit trees for home culture. They require a minimum of space for the amount of fruit

  8. To: Officers, Deans, Department Heads, and Department Administrators From: Diane Devlin, Purchasing Director

    E-Print Network [OSTI]

    Dennett, Daniel

    To: Officers, Deans, Department Heads, and Department Administrators From: Diane Devlin, Purchasing BY THE PURCHASING OFFICE NO LATER THAN FRIDAY, MAY 16, 2014. Certain commodity items may require longer lead times for such items should be received by the purchasing office no later than MONDAY, MAY 5, 2014. ITEMS OR SERVICES

  9. 112Proceedings of the 2009 Northeastern Recreation Research Symposium GTR-NRS-P-66 Diane Kuehn

    E-Print Network [OSTI]

    112Proceedings of the 2009 Northeastern Recreation Research Symposium GTR-NRS-P-66 Diane Kuehn (McAvoy and Dustin 1983, Vander Stoep and Gramann 1987, Duncan and Martin 2002, Kuehn and Thompson erosion) (Kuehn and Habig 2005, Kuehn and Thompson 2007). The strong stewardship ethic of many ELODWA

  10. APPL: A Probability Programming Language Maj. Andrew G. GLEN, Diane L. EVANS, and Lawrence M. LEEMIS

    E-Print Network [OSTI]

    Leemis, Larry

    APPL: A Probability Programming Language Maj. Andrew G. GLEN, Diane L. EVANS, and Lawrence M having arbitrary distributions. This arti- cle presents a prototype probability package named APPL (A probability software package, referred to as "A Prob- ability Programming Language" (APPL), that fills

  11. Feng and Figliozzi 1 Impacts of Economic, Technological and Operational Factors on the

    E-Print Network [OSTI]

    Bertini, Robert L.

    Competitiveness of Electric Commercial Vehicles in Fleet Replacement Decisions Wei Feng Ph.D. Student Department revised from original submittal. #12;Feng and Figliozzi 2 ABSTRACT Electric commercial vehicles (ECV) have if commercial diesel vehicles have a 10% share of total urban vehicle-miles traveled, commercial diesel powered

  12. Anhui Guo Feng Bio Energy Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo Feng Bio Energy Co Ltd Jump to: navigation, search Name:

  13. Beijing Solar Fengli Technology Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORT Americium/CuriumSunways JV Jump to: navigation,Co LtdJundaFengli

  14. Formation of nano-crystalline todorokite from biogenic Mn Xiong Han Feng a,1

    E-Print Network [OSTI]

    Sparks, Donald L.

    Formation of nano-crystalline todorokite from biogenic Mn oxides Xiong Han Feng a,1 , Mengqiang Zhu oxides in the environment. Additionally this method may be a viable biosynthesis route for porous, nano

  15. SPECIAL TOPIC: SCALING-UP IN ECOLOGY Diane S. Srivastava

    E-Print Network [OSTI]

    Srivastava, Diane

    in solar energy input (Currie 1991) or seasonality (Pielou 1975). Second, different re- gions of the world, if global variation in local diversity is determined entirely by energy-limitation, reductions, UK Present address: D. S. Srivastava Department of Zoology, University of British Columbia, 6270

  16. Atmospheric histories and growth trends Diane J. Ivy, Tim Arnold, Christina M. Harth, L. Paul Steele, Jens Mhle,

    E-Print Network [OSTI]

    Atmospheric histories and growth trends of C4 F10 , C5 F12 , C6 F14 , C7 F16 and C8 F18 * Diane J to: discover new interactions among natural and human climate system components; objectively assess future; and improve methods to model, monitor and verify greenhouse gas emissions and climatic impacts

  17. XEM: Managing the Evolution of XML Documents Hong Su, Diane Kramer, Li Chen, Kajal Claypool and Elke A. Rundensteiner

    E-Print Network [OSTI]

    Madiraju, Praveen

    XEM: Managing the Evolution of XML Documents Hong Su, Diane Kramer, Li Chen, Kajal Claypool- uments for management. However, both the data and the structure of XML documents tend to change over time emerging as a standard format for data representation on the web. In many applications, spe- cific document

  18. Eric Feng, HEP Lunch Seminar A Beam-Beam Trigger for ATLAS with

    E-Print Network [OSTI]

    Eric Feng, HEP Lunch Seminar 4/23/07 1 A Beam-Beam Trigger for ATLAS with MinBias Trigger) · Trigger the ATLAS detector during early low-luminosity running, especially commissioning run at 900 Ge/23/07 6 Scope Trace of Signal from Trigger Cable Low gain: · Differential signal, single shot (left

  19. Water in the Polar and Nonpolar Cavities of the Protein Interleukin-1 Guogang Feng,

    E-Print Network [OSTI]

    Clore, G. Marius

    Water in the Polar and Nonpolar Cavities of the Protein Interleukin-1 Hao Yin, Guogang Feng, G ReceiVed: September 13, 2010; ReVised Manuscript ReceiVed: October 19, 2010 Water in the protein by water on the basis of some experiments and simulations and to be empty on the basis of others. Here we

  20. Efficient Deep Web Crawling Using Reinforcement Lu Jiang, Zhaohui Wu, Qian Feng, Jun Liu, Qinghua Zheng

    E-Print Network [OSTI]

    Shamos, Michael I.

    Efficient Deep Web Crawling Using Reinforcement Learning Lu Jiang, Zhaohui Wu, Qian Feng, Jun Liu@mail.xjtu.edu.cn, qhzheng@mail.xjtu.edu.cn Abstract. Deep web refers to the hidden part of the Web that remains unavailable for standard Web crawlers. To obtain content of Deep Web is challenging and has been acknowledged

  1. User's guide to DIANE Version 2. 1: A microcomputer software package for modeling battery performance in electric vehicle applications

    SciTech Connect (OSTI)

    Marr, W.W.; Walsh, W.J. (Argonne National Lab., IL (USA). Energy Systems Div.); Symons, P.C. (Electrochemical Engineering Consultants, Inc., Morgan Hill, CA (USA))

    1990-06-01T23:59:59.000Z

    DIANE is an interactive microcomputer software package for the analysis of battery performance in electric vehicle (EV) applications. The principal objective of this software package is to enable the prediction of EV performance on the basis of laboratory test data for batteries. The model provides a second-by-second simulation of battery voltage and current for any specified velocity/time or power/time profile. The capability of the battery is modeled by an algorithm that relates the battery voltage to the withdrawn current, taking into account the effect of battery depth-of-discharge (DOD). Because of the lack of test data and other constraints, the current version of DIANE deals only with vehicles using fresh'' batteries with or without regenerative braking. Deterioration of battery capability due to aging can presently be simulated with user-input parameters accounting for an increase of effective internal resistance and/or a decrease of cell no-load voltage. DIANE 2.1 is written in FORTRAN language for use on IBM-compatible microcomputers. 7 refs.

  2. Chinese Films in Leyburn Library (10/09) A world without thieves = Tian xia wu zei / screenplay written and directed by Feng

    E-Print Network [OSTI]

    Marsh, David

    = Ashma / bian ju Ge Yan, Liu Qiong ; dao yan Liu Qiong ; Shanghai hai yan dian ying zhi pian chang chu, 1999. DVD. PL2877.P48 P2713 1999. Bei qing cheng shi = A city of sadness / Nian dai ying shi shi ye gu fen you xian gong si chu pin ; Hou Xiaoxian dian ying she zhi zuo. Taibei Shi : Nian dai ying shi shi

  3. Systematic design methodology and construction of UAV helicopters q Guowei Cai, Lin Feng, Ben M. Chen *, Tong H. Lee

    E-Print Network [OSTI]

    Benmei, Chen

    Systematic design methodology and construction of UAV helicopters q Guowei Cai, Lin Feng, Ben M 2008 Keywords: UAV helicopters Virtual design environment Anti-vibration Hardware construction a b-scale UAV helicop- ters. The systematic design procedure, which includes hardware component selection

  4. Correlated Topological Insulators with Mixed Valence Feng Lu, JianZhou Zhao, Hongming Weng, Zhong Fang,* and Xi Dai

    E-Print Network [OSTI]

    Wang, Wei Hua

    Correlated Topological Insulators with Mixed Valence Feng Lu, JianZhou Zhao, Hongming Weng, Zhong is a strongly correlated topological insulator. The unique feature of this compound is that its surface states contain three Dirac cones in contrast to most known topological insulators. DOI: 10.1103/PhysRevLett.110

  5. Improvement of Power-Performance Efficiency for High-End Computing Rong Ge, Xizhou Feng, Kirk W. Cameron

    E-Print Network [OSTI]

    Freeh, Vincent

    . Earth Simulator requires 18 megawatts of power. Petaflop systems may require 100 megawatts of power[2], nearly the output of a small power plant (300 megawatts). At $100 per megawatt ($.10 per kilowatt), peakImprovement of Power-Performance Efficiency for High-End Computing Rong Ge, Xizhou Feng, Kirk W

  6. Fuzzy soil mapping based on prototype category theory Feng Qi a,, A-Xing Zhu b,c

    E-Print Network [OSTI]

    Zhu, A-Xing

    Fuzzy soil mapping based on prototype category theory Feng Qi a,, A-Xing Zhu b,c , Mark Harrower c component of soil mapping is classification, a process of assigning spatial soil entities to predefined categories (classes). However, by their nature soils exist as a continuum both in the spatial and attribute

  7. Error Recovery for a Boiler System with OTS PID Controller Tom Anderson, Mei Feng, Steve Riddle, Alexander Romanovsky

    E-Print Network [OSTI]

    Newcastle upon Tyne, University of

    Error Recovery for a Boiler System with OTS PID Controller Tom Anderson, Mei Feng, Steve Riddle-The-Shelf) item. The case study used a Simulink model of a steam boiler system together with an OTS PID in practice, employing software models of the PID controller and the steam boiler system rather than

  8. Error Recovery for a Boiler System with OTS PID Controller Tom Anderson, Mei Feng, Steve Riddle, Alexander Romanovsky

    E-Print Network [OSTI]

    Newcastle upon Tyne, University of

    1 Error Recovery for a Boiler System with OTS PID Controller Tom Anderson, Mei Feng, Steve Riddle employing an OTS (Off-The-Shelf) item. The case study used a Simulink model of a steam boiler system, employing software models of the PID controller and the steam boiler system rather than conducting

  9. BILIPSCHITZ EMBEDDING OF SELF-SIMILAR SETS JUAN DENG, ZHI-YING WEN, YING XIONG, AND LI-FENG XI

    E-Print Network [OSTI]

    BILIPSCHITZ EMBEDDING OF SELF-SIMILAR SETS JUAN DENG, ZHI-YING WEN, YING XIONG, AND LI-FENG XI,10571140, 10571063,10631040, 11071164) and Morningside Center of Mathematics. 1 #12;2 JUAN DENG, ZHI-YING WEN, YING

  10. Power and Energy Profiling of Scientific Applications on Distributed Systems Xizhou Feng, Rong Ge, Kirk W. Cameron

    E-Print Network [OSTI]

    Feng, Xizhou

    .e. cost in power usage over time) will vary by application. For example, it costs 535 joules of energy system power consumption focus on building-wide power usage [6]. Such studies do not separate individualPower and Energy Profiling of Scientific Applications on Distributed Systems Xizhou Feng, Rong Ge

  11. Power and Energy Profiling of Scientific Applications on Distributed Systems Xizhou Feng, Rong Ge, Kirk W. Cameron

    E-Print Network [OSTI]

    Ge, Rong

    in power usage over time) will vary by application. For example, it costs 535 joules of energy to execute consumption focus on building-wide power usage [6]. Such studies do not separate individual systemsPower and Energy Profiling of Scientific Applications on Distributed Systems Xizhou Feng, Rong Ge

  12. Fault Tolerant Clockless Wave Pipeline Design T. Feng, B.Jin, *J.Wang and N.Park

    E-Print Network [OSTI]

    Ayers, Joseph

    Fault Tolerant Clockless Wave Pipeline Design T. Feng, B.Jin, *J.Wang and N.Park Department a fault tolerant design technique for the clockless wave pipeline. The spe- cific architectural model investigated in this paper is the two-phase clockless asynchronous wave pipeline [10] which is ideally supposed

  13. A Fair Multi-Party Non-Repudiation Scheme for Storage Clouds Jun Feng, Yu Chen, Douglas H. Summerville

    E-Print Network [OSTI]

    Chen, Yu

    integrity. Our study revealed vulnerabilities in some commercial Cloud storage services. We analyzed. Given this large potential profit for such services, cloud storage service providers attempt to persuadeA Fair Multi-Party Non-Repudiation Scheme for Storage Clouds Jun Feng, Yu Chen, Douglas H

  14. A Simulation Model of IEEE 802.15.4 in OMNeT++ Feng Chen Falko Dressler

    E-Print Network [OSTI]

    Breu, Ruth

    A Simulation Model of IEEE 802.15.4 in OMNeT++ Feng Chen Falko Dressler Computer Networks area networks (WPANs). In order to evaluate its performance, we develop a simulation model of IEEE 802.15.4-2006 and has the extendibility to the ZigBee protocol stack. Keywords IEEE 802.15.4, simulation model, OMNe

  15. A review of "The Arts of 17th-Century Science: Representations of the Natural World in European and North American Culture." by Claire Jowitt and Diane Watt, eds.

    E-Print Network [OSTI]

    Karol K. Weaver

    2003-01-01T23:59:59.000Z

    : Planetary Astronomy in the Development of the Western World, [1957] 260). Claire Jowitt and Diane Watt, eds. The Arts of 17 th -Century Science: Representations of the Natural World in European and North Ameri- can Culture. Aldershot, U.K.: Ashgate... sources of the early modern period overlapped and influenced each other. Editors Claire Jowitt and Diane Watt skillfully separated the volume into four major topics, did a fine job selecting essays that explored these subjects, and placed essays...

  16. ACM Reference Format Wu, H., Wang, Y., Feng, K., Wong, T., Lee, T., Heng, P. 2010. Resizing by Symmetry-Summarization.

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    ACM Reference Format Wu, H., Wang, Y., Feng, K., Wong, T., Lee, T., Heng, P. 2010. Resizing Pheng-Ann Heng1,3 1 The Chinese University of Hong Kong 2 National Cheng Kung University 3 SIAT, China

  17. Limited Lawn & Limited Commercial

    E-Print Network [OSTI]

    Watson, Craig A.

    Limited Lawn & Ornamental Limited Commercial Landscape Maintenance Review and Exams Limited for Commercial Landscape Maintenance Application: http://www.flaes.org/ pdf/lndspckt.pdf Limited Certification.floridatermitehelp.org or request by phone at 850-921-4177. Limited Lawn & Ornamental/Limited Commercial Landscape Maintenance

  18. Limited Lawn & Limited Commercial

    E-Print Network [OSTI]

    Jawitz, James W.

    Limited Lawn & Ornamental Limited Commercial Landscape Maintenance Review and Exams Limited-921-4177. Limited Lawn & Ornamental/Limited Commercial Landscape Maintenance: Ornamental and Turf Pest Control (SM 7&O/Structural only). See web locations below for applications. Limited Certification for Commercial Landscape

  19. Constructing Amplitudes from Their Soft Limits

    SciTech Connect (OSTI)

    Boucher-Veronneau, Camille; Larkoski, Andrew J.; /SLAC

    2011-12-09T23:59:59.000Z

    The existence of universal soft limits for gauge-theory and gravity amplitudes has been known for a long time. The properties of the soft limits have been exploited in numerous ways; in particular for relating an n-point amplitude to an (n-1)-point amplitude by removing a soft particle. Recently, a procedure called inverse soft was developed by which 'soft' particles can be systematically added to an amplitude to construct a higher-point amplitude for generic kinematics. We review this procedure and relate it to Britto-Cachazo-Feng-Witten recursion. We show that all tree-level amplitudes in gauge theory and gravity up through seven points can be constructed in this way, as well as certain classes of NMHV gauge-theory amplitudes with any number of external legs. This provides us with a systematic procedure for constructing amplitudes solely from their soft limits.

  20. Heart-shaped bubbles rising in anisotropic liquids Chunfeng Zhou1, Pengtao Yue1,2, James J. Feng1,2 , Chun Liu3, Jie Shen4

    E-Print Network [OSTI]

    Shen, Jie

    Heart-shaped bubbles rising in anisotropic liquids Chunfeng Zhou1, Pengtao Yue1,2, James J. Feng1 - This Letter reports numerical simulations motivated by experimental ob- servations of an unusual inverted-heart). Such a bubble assumes a peculiar shape while in the near wake, resembling an inverted heart or a spade (a

  1. Using Archived AVL/APC Bus Data to Identify Spatial-Temporal Causes of Bus Bunching Wei Feng, Miguel A. Figliozzi

    E-Print Network [OSTI]

    Bertini, Robert L.

    15 Using Archived AVL/APC Bus Data to Identify Spatial-Temporal Causes of Bus Bunching Wei Feng. The availability of tremendous amounts of archived data provides an opportunity to better understand the complex causes of bus bunching. This research is utilizes half year's data from automatic vehicle location (AVL

  2. CURRICULUM VITAE Diane Boothe

    E-Print Network [OSTI]

    Barrash, Warren

    /DEVELOPMENT Honors: President, Idaho Association of Colleges for Teacher Education (2012-2013) Scientific Committee, Future of Education, Florence Italy (2011-2013) Scientific Committee, Information and Communication Association, Professors of Middle Level Education (November 2010) Evaluator, Teachers Go On Idaho Statesman

  3. Wavelength-extended photovoltaic infrared photodetectors Yan-Feng Lao, P. K. D. D. P. Pitigala, A. G. Unil Perera, L. H. Li, S. P. Khanna, and E. H. Linfield

    E-Print Network [OSTI]

    Perera, A. G. Unil

    Wavelength-extended photovoltaic infrared photodetectors Yan-Feng Lao, P. K. D. D. P. Pitigala, A Publishing Articles you may be interested in Photovoltaic infrared detection with p-type graded barrier://scitation.aip.org/termsconditions. Downloaded to IP: 131.96.4.179 On: Mon, 31 Mar 2014 16:28:42 #12;Wavelength-extended photovoltaic infrared

  4. FengCMDRTIL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial ThinFORFALL NEWSFemtosecond X-ray

  5. Diane S. Henshel Associate Professor

    E-Print Network [OSTI]

    Craft, Christopher B.

    , Public Health, Policy, and Society and Culture in Current Affairs in Kenya 1998 ­ Present Henshel Enviro of pollutants on developing embryos, focus on neuroendocrine, liver, heart and kidney effects, correlating

  6. Zeptogram-Scale Nanomechanical Mass Y. T. Yang, C. Callegari, X. L. Feng, K. L. Ekinci, and M. L. Roukes*

    E-Print Network [OSTI]

    condensation of the gas within the orifice and its supply line. Gas is delivered to this nozzle fromDa molecule. Detailed analysis of the ultimate sensitivity of such devices based on these experimental results limits upon nanoscale gas sensors.10-12 As an initial step toward these applications, we perform mass

  7. Zeptogram-Scale Nanomechanical Mass Y. T. Yang, C. Callegari, X. L. Feng, K. L. Ekinci, and M. L. Roukes*

    E-Print Network [OSTI]

    it with 1 W of power to prevent condensation of the gas within the orifice and its supply line. GasDa molecule. Detailed analysis of the ultimate sensitivity of such devices based on these experimental results limits upon nanoscale gas sensors.10-12 As an initial step toward these applications, we perform mass

  8. Feng Qiu | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility of SF(STEO) ď‚·diffractive imaging with a

  9. Online Effects of Offline Ads Diane Lambert

    E-Print Network [OSTI]

    Tomkins, Andrew

    a methodology for assessing how ad campaigns in offline media such as print, audio and TV affect online in-in-difference estimation, Lift, Causal Modeling, Bootstrapping 1. INTRODUCTION Loosely speaking, an ad is effective was conducted in an offline medium such as print, radio or TV. That is, one measure of offline ad effectiveness

  10. Women @ Energy: Diane Chinn | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf TheViolations | DepartmentDeborah Joanne Bard Women @

  11. BILL RICHARDSON Governor DIANE DENISH Lieutenant Governor

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone byDearTechnicalAwardssupportsBES User

  12. Apply early! Limited enrollment.

    E-Print Network [OSTI]

    volcano. Experience the culture and history of Hawaii, and the impact of human activitiesApply early! Limited enrollment. Environmental Science in the Hawaiian Islands Observe, research

  13. Optical limiting materials

    DOE Patents [OSTI]

    McBranch, Duncan W. (Santa Fe, NM); Mattes, Benjamin R. (Santa Fe, NM); Koskelo, Aaron C. (Los Alamos, NM); Heeger, Alan J. (Santa Barbara, CA); Robinson, Jeanne M. (Los Alamos, NM); Smilowitz, Laura B. (Los Alamos, NM); Klimov, Victor I. (Los Alamos, NM); Cha, Myoungsik (Goleta, CA); Sariciftci, N. Serdar (Santa Barbara, CA); Hummelen, Jan C. (Groningen, NL)

    1998-01-01T23:59:59.000Z

    Optical limiting materials. Methanofullerenes, fulleroids and/or other fullerenes chemically altered for enhanced solubility, in liquid solution, and in solid blends with transparent glass (SiO.sub.2) gels or polymers, or semiconducting (conjugated) polymers, are shown to be useful as optical limiters (optical surge protectors). The nonlinear absorption is tunable such that the energy transmitted through such blends saturates at high input energy per pulse over a wide range of wavelengths from 400-1100 nm by selecting the host material for its absorption wavelength and ability to transfer the absorbed energy into the optical limiting composition dissolved therein. This phenomenon should be generalizable to other compositions than substituted fullerenes.

  14. Synchronization of Limit Sets

    E-Print Network [OSTI]

    Changpin Li; Weihua Deng

    2005-10-10T23:59:59.000Z

    In this Letter, we derive a sufficient condition of synchronizing limit sets (attractors and repellers) by using the linear feedback control technique proposed here. There examples are included. The numerical simulations and computer graphics show that our method work well.

  15. Limited Commercial Maintenance (LCLM) Limited Lawn & Ornamental (LLO)

    E-Print Network [OSTI]

    Florida, University of

    , Limited Commercial Landscape Maintenance, Ornamental & Turf, Private Ag, or General Standards CORE for Limited Commercial Landscape Maintenance (LCLM), you must attend all day to earn the 6 CEUs required. Limited Commercial Maintenance (LCLM) Limited Lawn & Ornamental (LLO) Training & Exams Date

  16. Axeon Power Limited formerly Advanced Batteries Ltd ABL | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo Feng Bio Jump to: navigation,Avanzalia Solar

  17. Optical limiting materials

    DOE Patents [OSTI]

    McBranch, D.W.; Mattes, B.R.; Koskelo, A.C.; Heeger, A.J.; Robinson, J.M.; Smilowitz, L.B.; Klimov, V.I.; Cha, M.; Sariciftci, N.S.; Hummelen, J.C.

    1998-04-21T23:59:59.000Z

    Methanofullerenes, fulleroids and/or other fullerenes chemically altered for enhanced solubility, in liquid solution, and in solid blends with transparent glass (SiO{sub 2}) gels or polymers, or semiconducting (conjugated) polymers, are shown to be useful as optical limiters (optical surge protectors). The nonlinear absorption is tunable such that the energy transmitted through such blends saturates at high input energy per pulse over a wide range of wavelengths from 400--1,100 nm by selecting the host material for its absorption wavelength and ability to transfer the absorbed energy into the optical limiting composition dissolved therein. This phenomenon should be generalizable to other compositions than substituted fullerenes. 5 figs.

  18. Heat flux limiting sleeves

    DOE Patents [OSTI]

    Harris, William G. (Tampa, FL)

    1985-01-01T23:59:59.000Z

    A heat limiting tubular sleeve extending over only a portion of a tube having a generally uniform outside diameter, the sleeve being open on both ends, having one end thereof larger in diameter than the other end thereof and having a wall thickness which decreases in the same direction as the diameter of the sleeve decreases so that the heat transfer through the sleeve and tube is less adjacent the large diameter end of the sleeve than adjacent the other end thereof.

  19. Fault current limiter

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2013-10-08T23:59:59.000Z

    A fault current limiter (FCL) includes a series of high permeability posts for collectively define a core for the FCL. A DC coil, for the purposes of saturating a portion of the high permeability posts, surrounds the complete structure outside of an enclosure in the form of a vessel. The vessel contains a dielectric insulation medium. AC coils, for transporting AC current, are wound on insulating formers and electrically interconnected to each other in a manner such that the senses of the magnetic field produced by each AC coil in the corresponding high permeability core are opposing. There are insulation barriers between phases to improve dielectric withstand properties of the dielectric medium.

  20. Limited Distribution Notice

    E-Print Network [OSTI]

    Josh Hailpern; John Jay High; Charles C. Palmer

    This report has been submitted for publication outside of IBM and will probably be copyrighted is accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). Some reports are available at

  1. Process Limits on Euclid

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar Home DesignPresentationsSRS RespondsLift Plan ProcedureProcess Limits

  2. (Limiting the greenhouse effect)

    SciTech Connect (OSTI)

    Rayner, S.

    1991-01-07T23:59:59.000Z

    Traveler attended the Dahlem Research Conference organized by the Freien Universitat, Berlin. The subject of the conference was Limiting the Greenhouse Effect: Options for Controlling Atmospheric CO{sub 2} Accumulation. Like all Dahlem workshops, this was a meeting of scientific experts, although the disciplines represented were broader than usual, ranging across anthropology, economics, international relations, forestry, engineering, and atmospheric chemistry. Participation by scientists from developing countries was limited. The conference was divided into four multidisciplinary working groups. Traveler acted as moderator for Group 3 which examined the question What knowledge is required to tackle the principal social and institutional barriers to reducing CO{sub 2} emissions'' The working rapporteur was Jesse Ausubel of Rockefeller University. Other working groups examined the economic costs, benefits, and technical feasibility of options to reduce emissions per unit of energy service; the options for reducing energy use per unit of GNP; and the significant of linkage between strategies to reduce CO{sub 2} emissions and other goals. Draft reports of the working groups are appended. Overall, the conference identified a number of important research needs in all four areas. It may prove particularly important in bringing the social and institutional research needs relevant to climate change closer to the forefront of the scientific and policy communities than hitherto.

  3. FED pumped limiter configuration issues

    SciTech Connect (OSTI)

    Haines, J.R.; Fuller, G.M.

    1983-01-01T23:59:59.000Z

    Impurity control in the Fusion Engineering Device (FED) is provided by a toroidal belt pumped limiter. Limiter design issues addressed in this paper are (1) poloidal location of the limiter belt, (2) shape of the limiter surface facing the plasma, and (3) whether the belt is pumped from one or both sides. The criteria used for evaluation of limiter configuration features were sensitivity to plasma-edge conditions and ease of maintenance and fabrication. The evaluation resulted in the selection of a baseline FED limiter that is located at the bottom of the device and has a flat surface with a single leading edge.

  4. COMMENTARY:Limits to adaptation

    SciTech Connect (OSTI)

    Preston, Benjamin L [ORNL

    2013-01-01T23:59:59.000Z

    An actor-centered, risk-based approach to defining limits to social adaptation provides a useful analytic framing for identifying and anticipating these limits and informing debates over society s responses to climate change.

  5. ATF users meeting Feng.ppt

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of GlobalASCR UserProgramI - Working

  6. T . H. Feng, W. M. Post, D

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystallineForeign Object DamageSystems BiologyvirulenceFade,thehedo bec

  7. Tropical Limit in Statistical Physics

    E-Print Network [OSTI]

    M. Angelelli; B. Konopelchenko

    2015-02-04T23:59:59.000Z

    Tropical limit for macroscopic systems in equilibrium defined as the formal limit of Boltzmann constant k going to 0 is discussed. It is shown that such tropical limit is well-adapted to analyse properties of systems with highly degenerated energy levels, particularly of frustrated systems like spin ice and spin glasses. Tropical free energy is a piecewise linear function of temperature, tropical entropy is a piecewise constant function and the system has energy for which tropical Gibbs' probability has maximum. Properties of systems in the points of jump of entropy are studied. Systems with finite and infinitely many energy levels and phenomena of limiting temperatures are discussed.

  8. FUEL CASK IMPACT LIMITER VULNERABILITIES

    SciTech Connect (OSTI)

    Leduc, D; Jeffery England, J; Roy Rothermel, R

    2009-02-09T23:59:59.000Z

    Cylindrical fuel casks often have impact limiters surrounding just the ends of the cask shaft in a typical 'dumbbell' arrangement. The primary purpose of these impact limiters is to absorb energy to reduce loads on the cask structure during impacts associated with a severe accident. Impact limiters are also credited in many packages with protecting closure seals and maintaining lower peak temperatures during fire events. For this credit to be taken in safety analyses, the impact limiter attachment system must be shown to retain the impact limiter following Normal Conditions of Transport (NCT) and Hypothetical Accident Conditions (HAC) impacts. Large casks are often certified by analysis only because of the costs associated with testing. Therefore, some cask impact limiter attachment systems have not been tested in real impacts. A recent structural analysis of the T-3 Spent Fuel Containment Cask found problems with the design of the impact limiter attachment system. Assumptions in the original Safety Analysis for Packaging (SARP) concerning the loading in the attachment bolts were found to be inaccurate in certain drop orientations. This paper documents the lessons learned and their applicability to impact limiter attachment system designs.

  9. Limitations on entropic Bell inequalities

    E-Print Network [OSTI]

    Ian T. Durham

    2006-08-01T23:59:59.000Z

    The derivation of Bell inequalities in terms of quantum statistical (thermodynamic) entropies is considered. Inequalities of the Wigner form are derived but shown to be extremely limiting in their applicability due to the nature of the density matrices involved. This also helps to identify a limitation in the Cerf-Adami inequalities.

  10. Congressional Request Limiting the Magnitude

    E-Print Network [OSTI]

    as goals? Target: limit U.S. GHG emissions (e.g., national emission budget, or percent reduction) What is a reasonable share of U.S. emission reductions relative to the global targets? What is the implied emissions on atmospheric GHG concentrations? Target: limit atmospheric GHG concentrations (e.g., 450, 550 ppm CO2,eq) How

  11. Nonlinear subcritical magnetohydrodynamic beta limit

    SciTech Connect (OSTI)

    Waltz, R. E. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

    2010-07-15T23:59:59.000Z

    Published gyrokinetic simulations have had difficulty operating beyond about half the ideal magnetohydrodynamic (MHD) critical beta limit with stationary and low transport levels in some well-established reference cases. Here it is demonstrated that this limitation is unlikely due to numerical instability, but rather appears to be a nonlinear subcritical MHD beta limit[R. E. Waltz, Phys. Rev. Lett. 55, 1098 (1985)] induced by the locally enhanced pressure gradients from the diamagnetic component of the nonlinearly driven (zero frequency) zonal flows. Strong evidence that the zonal flow corrugated pressure gradient profiles can act as a MHD-like beta limit unstable secondary equilibrium is provided. It is shown that the addition of sufficient ExB shear or operation closer to drift wave instability threshold, thereby reducing the high-n drift wave turbulence nonlinear pumping of the zonal flows, can allow the normal high-n ideal MHD beta limit to be reached with low transport levels. Example gyrokinetic simulations of experimental discharges are provided: one near the high-n beta limit reasonably matches the low transport levels needed when the high experimental level of ExB shear is applied; a second experimental example at moderately high beta appears to be limited by the subcritical beta.

  12. Cognitive Limitations and Investment "Myopia"

    E-Print Network [OSTI]

    Chi, Tailan; Fan, Dashan

    1997-01-01T23:59:59.000Z

    Optimization of investment decisions in an uncertain and dynamically evolving environment is difficult due to the limitations of the decision maker’s cognitive capacity. Thus, actual investment decisions may deviate from ...

  13. Extremal Limits and Kerr Spacetime

    E-Print Network [OSTI]

    Parthapratim Pradhan; Parthasarathi Majumdar

    2011-08-11T23:59:59.000Z

    The fact that one must evaluate the near-extremal and near-horizon limits of Kerr space-time in a specific order, is shown to a lead to discontinuity in the extremal limit, such that this limiting space-time differs nontrivially from the precisely extremal space-time. This is established by first showing a discontinuity in the extremal limit of the maximal analytic extension of the Kerr geometry, given by Carter. Next, we examine the ISCO of the exactly extremal Kerr geometry and show that on the event horizon of the extremal Kerr black hole, it coincides with the principal null geodesic generator of the horizon, having vanishing energy and angular momentum. We find that there is no such ISCO in the near-extremal geometry, thus garnering additional support for our primary contention. We relate this disparity between the two geometries to the lack of a trapping horizon in the extremal situation.

  14. Spitzer White Dwarf Planet Limits

    E-Print Network [OSTI]

    F. Mullally; Ted von Hippel; D. E. Winget

    2006-10-28T23:59:59.000Z

    We present preliminary limits on the presence of planets around white dwarf stars using the IRAC photometer on the Spitzer space telescope. Planets emit strongly in the mid-infrared which allows their presence to be detected as an excess at these wavelengths. We place limits of $5 M_J$ for 8 stars assuming ages of $1 Gyr$, and $10 M_J$ for 23 stars.We describe our survey, present our results and comment on approaches to improve our methodology.

  15. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, D.J.; Cha, Y.S.

    1999-04-06T23:59:59.000Z

    A passive current limiting device and isolator is particularly adapted for use at high power levels for limiting excessive currents in a circuit in a fault condition such as an electrical short. The current limiting device comprises a magnetic core wound with two magnetically opposed, parallel connected coils of copper, a high temperature superconductor or other electrically conducting material, and a fault element connected in series with one of the coils. Under normal operating conditions, the magnetic flux density produced by the two coils cancel each other. Under a fault condition, the fault element is triggered to cause an imbalance in the magnetic flux density between the two coils which results in an increase in the impedance in the coils. While the fault element may be a separate current limiter, switch, fuse, bimetal strip or the like, it preferably is a superconductor current limiter conducting one-half of the current load compared to the same limiter wired to carry the total current of the circuit. The major voltage during a fault condition is in the coils wound on the common core in a preferred embodiment. 6 figs.

  16. Classical limits of unconstrained QFT

    E-Print Network [OSTI]

    Glenn Eric Johnson

    2014-12-21T23:59:59.000Z

    In nonrelativistic limits for states labeled by minimum packets with constrained spatial spreads and over a short term, states of unconstrained quantum field theories evolve on trajectories described by Newton's equations for the $1/r^2$ force. These states include bound solutions in the attractive force case.

  17. Review and Exams Limited Certification

    E-Print Network [OSTI]

    Watson, Craig A.

    __________________________________ Check which exam you will be taking: Commercial Landscape Maintenance Lawn & Ornamental CEU's ONLY 8 Limited Certification for Commercial Landscape Maintenance A license is necessary for each commercial landscape maintenance person who applies pesticides to ornamental plant beds. Application available at: http

  18. Yu Wang, Hongyi Wu*, Feng Lin, and Nian-Feng Tzeng Center for Advanced Computer Studies

    E-Print Network [OSTI]

    Wu, Hongyi

    data packets to the base station directly. #12;Shared Wireless Info-Station (SWIM) · Where? · Direct Transmission: sink only · Flooding/SWIM: any sensors or sinks · ZebraNet: the sensor that meets. · Tradeoff: link utilization vs. energy efficiency. ­ Communication links are scarcest resources ­ Battery

  19. Summary of Dissolved Concentration Limits

    SciTech Connect (OSTI)

    Yueting Chen

    2001-06-11T23:59:59.000Z

    According to the Technical Work Plan titled Technical Work Plan for Waste Form Degradation Process Model Report for SR (CRWMS M&O 2000a), the purpose of this study is to perform abstractions on solubility limits of radioactive elements based on the process-level information and thermodynamic databases provided by Natural Environment Program Operations (NEPO) and Waste Package Operations (WPO). The scope of this analysis is to produce solubility limits as functions, distributions, or constants for all transported radioactive elements identified by the Performance Assessment Operations (PAO) radioisotope screening. Results from an expert elicitation for solubility limits of most radioactive elements were used in the previous Total System Performance Assessments (TSPAs). However, the elicitation conducted in 1993 does not meet the criteria set forth by the U.S. Nuclear Regulatory Commission (NRC) due to lack of documentation and traceability (Kotra et al. 1996, Section 3). Therefore, at the Waste Form Abstraction Workshop held on February 2-4, 1999, at Albuquerque, New Mexico, the Yucca Mountain Site Characterization Project (YMP) decided to develop geochemical models to study solubility for the proposed Monitored Geologic Repository. WPO/NEPO is to develop process-level solubility models, including review and compilation of relevant thermodynamic data. PAO's responsibility is to perform abstractions based on the process models and chemical conditions and to produce solubility distributions or response surfaces applicable to the proposed repository. The results of this analysis and conceptual model will feed the performance assessment for Total System Performance Assessment--Site Recommendation (TSPA-SR) and Total System Performance Assessment--License Application (TSPA-LA), and to the Waste Form Degradation Process Model Report section on concentration limits.

  20. Bioethanol Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarre BiomassTHIS PAGE IS UNDER CONSTRUCTIONBioethanol Limited

  1. Singapore's Water Trade with Malaysia and Alternatives By Diane Segal

    E-Print Network [OSTI]

    Wolf, Aaron

    and Rainwater Collection ............................................................. 22 Wastewater Re

  2. Kamran Khan Vice Provost for IT Diane Butler, Assistant University

    E-Print Network [OSTI]

    Michael Harrison Christopher Cole TBN Telecommunications Keith Kostelecky, Manager IT Security Office Marc Dora Lomeli Jackie Blyden Kevin Du Fernando Gonzalez Keith Poli Joe Rodriguez Lenney Yip David Bergman John Croft Christopher Ramirez Juan Rodriguez Ray Jones Bill Klemm Hans Krause Chesson Olawaiye Tom

  3. Kamran Khan Vice Provost for IT Diane Butler, Assistant University

    E-Print Network [OSTI]

    *Edwin Martinez Robert Castillo Edmond Jasinski Dora Lomeli Eron Montes Christopher Ramirez Sandra Rehm Iris Chang Janice Johnston Geoffrey Marsh Michael Harrison Christopher Cole TBN Telecommunications Keith Kostelecky, Manager IT Security Office Marc Scarborough, Security Officer Levi Ball Peseng Yu

  4. Smart Homes Diane J. Cook and Michael Youngblood

    E-Print Network [OSTI]

    Cook, Diane J.

    of these activities can reduce the amount of interaction required by inhabitants and reduce energy consumption% predicted chance of rain. To reduce energy costs, the house turns down the heat until 15 minutes before Bob is due home. Because the refrigerator is low on milk and cheese, the home places a grocery order. When

  5. William E. and Diane M. Spicer Young Investigator Award | Stanford

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered energy consumption byAbout PrintableBlenderWhatFellows - Past andD. Parker

  6. BILL RICHARDSON Governor DIANE DENISH Lieutenant Governor NEW MEXICO

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScience Program CumulusA t iBudget2/4/13 Page 1 of 2 RIVER KEY: =

  7. Waste tank characterization sampling limits

    SciTech Connect (OSTI)

    Tusler, L.A.

    1994-09-02T23:59:59.000Z

    This document is a result of the Plant Implementation Team Investigation into delayed reporting of the exotherm in Tank 241-T-111 waste samples. The corrective actions identified are to have immediate notification of appropriate Tank Farm Operations Shift Management if analyses with potential safety impact exceed established levels. A procedure, WHC-IP-0842 Section 12.18, ``TWRS Approved Sampling and Data Analysis by Designated Laboratories`` (WHC 1994), has been established to require all tank waste sampling (including core, auger and supernate) and tank vapor samples be performed using this document. This document establishes levels for specified analysis that require notification of the appropriate shift manager. The following categories provide numerical values for analysis that may indicate that a tank is either outside the operating specification or should be evaluated for inclusion on a Watch List. The information given is intended to translate an operating limit such as heat load, expressed in Btu/hour, to an analysis related limit, in this case cesium-137 and strontium-90 concentrations. By using the values provided as safety flags, the analytical laboratory personnel can notify a shift manager that a tank is in potential violation of an operating limit or that a tank should be considered for inclusion on a Watch List. The shift manager can then take appropriate interim measures until a final determination is made by engineering personnel.

  8. Dose Limits | Department of Energy

    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 Office of Inspector General Office of Audit ServicesMirant Potomac River Compliance Plan |DocumentDoingDorm RoomLimits

  9. Limited View Angle Iterative CT Reconstruction

    E-Print Network [OSTI]

    ;Some Prior Literature in Limited View Tomography CT with limited-angle data and few views IRR algorithm Iterative Reconstruction-Reprojection (IRR) : An Algorithm for Limited Data Cardiac- Computed-views and limited-angle data in divergent-beam CT by E. Y. Sidky, CM Kao, and X. Pan (2006) Few-View Projection

  10. Limited-life cartridge primers

    DOE Patents [OSTI]

    Makowiecki, D.M.; Rosen, R.S.

    1998-06-30T23:59:59.000Z

    A cartridge primer is described which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML`s would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers. 10 figs.

  11. Photon and graviton mass limits

    SciTech Connect (OSTI)

    Nieto, Michael [Los Alamos National Laboratory; Goldhaber Scharff, Alfred [SUNY

    2008-01-01T23:59:59.000Z

    We review past and current studies of possible long-distance, low-frequency deviations from Maxwell electrodynamics and Einstein gravity. Both have passed through three phases: (1) Testing the inverse-square laws of Newton and Coulomb, (2) Seeking a nonzero value for the rest mass of photon or graviton, and (3) Considering more degrees of freedom, allowing mass while preserving gauge or general-coordinate invariance. For electrodynamics there continues to be no sign of any deviation. Since our previous review the lower limit on the photon Compton wavelength (associated with weakening of electromagnetic fields in vacuum over large distance scale) has improved by four orders of magnitude, to about one astronomical unit. Rapid current progress in astronomical observations makes it likely that there will be further advances. These ultimately could yield a bound exceeding galactic dimensions, as has long been contemplated. Meanwhile, for gravity there have been strong arguments about even the concept of a graviton rest mass. At the same time there are striking observations, commonly labeled 'dark matter' and 'dark energy' that some argue imply modified gravity. This makes the questions for gravity much more interesting. For dark matter, which involves increased attraction at large distances, any explanation by modified gravity would be qualitatively different from graviton mass. Because dark energy is associated with reduced attraction at large distances, it might be explained by a graviton-mass-like effect.

  12. Kinetic limits of dynamical systems

    E-Print Network [OSTI]

    Jens Marklof

    2014-08-06T23:59:59.000Z

    Since the pioneering work of Maxwell and Boltzmann in the 1860s and 1870s, a major challenge in mathematical physics has been the derivation of macroscopic evolution equations from the fundamental microscopic laws of classical or quantum mechanics. Macroscopic transport equations lie at the heart of many important physical theories, including fluid dynamics, condensed matter theory and nuclear physics. The rigorous derivation of macroscopic transport equations is thus not only a conceptual exercise that establishes their consistency with the fundamental laws of physics: the possibility of finding deviations and corrections to classical evolution equations makes this subject both intellectually exciting and relevant in practical applications. The plan of these lectures is to develop a renormalisation technique that will allow us to derive transport equations for the kinetic limits of two classes of simple dynamical systems, the Lorentz gas and kicked Hamiltonians (or linked twist maps). The technique uses the ergodic theory of flows on homogeneous spaces (homogeneous flows for short), and is based on joint work with Andreas Str\\"ombergsson.

  13. Infrared limit in external field scattering

    E-Print Network [OSTI]

    Andrzej Herdegen

    2012-05-17T23:59:59.000Z

    Scattering of electrons/positrons by external classical electromagnetic wave packet is considered in infrared limit. In this limit the scattering operator exists and produces physical effects, although the scattering cross-section is trivial.

  14. Newtonian limits of warp drive spacetimes

    E-Print Network [OSTI]

    Jose Natario

    2009-10-07T23:59:59.000Z

    We find a class of warp drive spacetimes possessing Newtonian limits, which we then determine. The same method is used to compute Newtonian limits of the Schwarzschild solution and spatially flat Friedmann-Robertson-Walker cosmological models.

  15. Fractal Graphics Proprietary Limited 39 Fairway, Nedlands,

    E-Print Network [OSTI]

    Boschetti, Fabio

    1 Fractal Graphics Proprietary Limited 39 Fairway, Nedlands, Western Australia, Australia 6009 djh@fractalgraphics.com.au 2 Fractal Graphics Proprietary Limited 39 Fairway, Nedlands, Western Australia, Australia 6009 nja

  16. Implementing Risk-Limiting Audits in California

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    cast09.pdf. Philip B. Stark. Risk-limiting post-electionthe N.J. law the ?rst “risk-based statistical audit law. ”Holt bill does not limit risk. The Holt bill has a clause

  17. Limited Liability Companies and Corporate Business Structures

    E-Print Network [OSTI]

    Thompson, Bill; Polk, Wade; Hayenga, Wayne

    2009-01-07T23:59:59.000Z

    This publication describes limited liability companies and corporate forms of business organization, including S-Corporations and C-Corporations....

  18. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, J.R.

    1997-02-04T23:59:59.000Z

    A fault current limiter for an electrical circuit is disclosed. The fault current limiter includes a high temperature superconductor in the electrical circuit. The high temperature superconductor is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter. 15 figs.

  19. LIMITING ABSORPTION PRINCIPLE FOR SINGULARLY PERTURBED OPERATORS

    E-Print Network [OSTI]

    LIMITING ABSORPTION PRINCIPLE FOR SINGULARLY PERTURBED OPERATORS WALTER RENGER Abstract. Given an operator H 1 for which a limiting absorption principle holds, we study operators H 2 which are produced that (except for possibly a discrete set of eigenvalues) a limiting absorption principle holds for H 2 . We

  20. The Chandrasekhar limit for quark stars

    E-Print Network [OSTI]

    Shibaji Banerjee; Sanjay K. Ghosh; Sibaji Raha

    2000-01-14T23:59:59.000Z

    The Chandrasekhar limit for quark stars is evaluated from simple energy balance relations, as proposed by Landau for white dwarfs or neutron stars. It has been found that the limit for quark stars depends on, in addition to the fundamental constants, the Bag constant.

  1. Automated Operating Procedures for Transfer Limits

    E-Print Network [OSTI]

    Automated Operating Procedures for Transfer Limits Final Project Report Power Systems Engineering · Illinois · Iowa State · Texas A&M · Washington State · Wisconsin Automated Operating Procedures operating procedures to establish system constraints, particularly in regards to transfer limits across

  2. Ultrasonic imaging with limited-diffraction beams

    E-Print Network [OSTI]

    Jian-yu Lu

    2006-03-28T23:59:59.000Z

    Limited-diffraction beams are a class of waves that may be localized in space and time. Theoretically, these beams are propagation invariant and can propagate to an infinite distance without spreading. In practice, when these beams are produced with wave sources of a finite aperture and energy, they have a very large depth of field, meaning that they can keep a small beam width over a large distance. Because of this property, limited-diffraction beams may have applications in various areas such as medical imaging and tissue characterization. In this paper, fundamentals of limited-diffraction beams are reviewed and the studies of these beams are put into a unified theoretical framework. Theory of limited-diffraction beams is further developed. New limited-diffraction solutions to Klein-Gordon Equation and Schrodinger Equation, as well as limited-diffraction solutions to these equations in confined spaces are obtained. The relationship between the transformation that converts any solutions to an (-1)-dimensional wave equation to limited-diffraction solutions of an -dimensional equation and the Lorentz transformation is clarified and extended. The transformation is also applied to the Klein-Gordon Equation. In addition, applications of limited-diffraction beams are summarized.

  3. CARD No. 31 Application of Release Limits

    E-Print Network [OSTI]

    of calculating the release limits. Section 194.31 specifies that release limits should be calculated based a likelihood of less than one chance in 1,000 of exceeding ten times the quantities calculated according, in particular, the waste unit factor depends solely on the TRU component of waste. Section 194.31 requires

  4. Self-triggering superconducting fault current limiter

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY); Tekletsadik, Kasegn (Rexford, NY)

    2008-10-21T23:59:59.000Z

    A modular and scaleable Matrix Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. The matrix fault current limiter comprises a fault current limiter module that includes a superconductor which is electrically coupled in parallel with a trigger coil, wherein the trigger coil is magnetically coupled to the superconductor. The current surge doing a fault within the electrical power network will cause the superconductor to transition to its resistive state and also generate a uniform magnetic field in the trigger coil and simultaneously limit the voltage developed across the superconductor. This results in fast and uniform quenching of the superconductors, significantly reduces the burnout risk associated with non-uniformity often existing within the volume of superconductor materials. The fault current limiter modules may be electrically coupled together to form various "n" (rows).times."m" (columns) matrix configurations.

  5. Decoupling limits in multi-sector supergravities

    SciTech Connect (OSTI)

    Achúcarro, Ana; Hardeman, Sjoerd; Schalm, Koenraad; Aalst, Ted van der [Instituut-Lorentz for Theoretical Physics, Universiteit Leiden, Niels Bohrweg 2, Leiden (Netherlands); Oberreuter, Johannes M., E-mail: achucar@lorentz.leidenuniv.nl, E-mail: j.m.oberreuter@uva.nl, E-mail: kschalm@lorentz.leidenuniv.nl, E-mail: vdaalst@lorentz.leidenuniv.nl [Instituut voor Theoretische Fysica, Universiteit van Amsterdam, Science Park 904, Amsterdam (Netherlands)

    2013-03-01T23:59:59.000Z

    Conventional approaches to cosmology in supergravity assume the existence of multiple sectors that only communicate gravitationally. In principle these sectors decouple in the limit M{sub pl}??. In practice such a limit is delicate: for generic supergravities, where sectors are combined by adding their Kähler functions, the separate superpotentials must contain non-vanishing vacuum expectation values supplementing the naďve global superpotential. We show that this requires non-canonical scaling in the naďve supergravity superpotential couplings to recover independent sectors of globally supersymmetric field theory in the decoupling limit M{sub pl} ? ?.

  6. Long-time limit of correlation functions

    E-Print Network [OSTI]

    Thomas Franosch

    2014-07-31T23:59:59.000Z

    Auto-correlation functions in an equilibrium stochastic process are well-characterized by Bochner's theorem as Fourier transforms of a finite symmetric Borel measure. The existence of a long-time limit of these correlation functions depends on the spectral properties of the measure. Here we provide conditions applicable to a wide-class of dynamical theories guaranteeing the existence of the long-time limit. We discuss the implications in the context of the mode-coupling theory of the glass transition where a non-trivial long-time limit signals an idealized glass state.

  7. Limit of light coupling into solar cells

    E-Print Network [OSTI]

    Naqavi, A; Ballif, C; Scharf, T; Herzig, H P

    2013-01-01T23:59:59.000Z

    We introduce a limit for the strength of coupling light into the modes of solar cells. This limit depends on both a cell's thickness and its modal properties. For a cell with refractive index n and thickness d, we obtain a maximal coupling rate of 2c*sqrt(n^2-1)/d where c is speed of light. Our method can be used in the design of solar cells and in calculating their efficiency limits; besides, it can be applied to a broad variety of resonant phenomena and devices.

  8. Diffusion-Limited Aggregation on Curved Surfaces

    E-Print Network [OSTI]

    Choi, J.

    We develop a general theory of transport-limited aggregation phenomena occurring on curved surfaces, based on stochastic iterated conformal maps and conformal projections to the complex plane. To illustrate the theory, we ...

  9. Climate Prediction: The Limits of Ocean Models

    E-Print Network [OSTI]

    Stone, Peter H.

    We identify three major areas of ignorance which limit predictability in current ocean GCMs. One is the very crude representation of subgrid-scale mixing processes. These processes are parameterized with coefficients whose ...

  10. Limitations on Diversity in Basic Science Departments

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

    ORIGINAL RESEARCH ARTICLE Limitations on Diversity in Basic Science Departments Phoebe S. Leboy 1,2, * and Janice F. Madden 3 It has been over 30 years since the beginning of...

  11. Can Eutrophication Influence Nitrogen vs. Phosphorus Limitation?

    E-Print Network [OSTI]

    Vallino, Joseph J.

    Can Eutrophication Influence Nitrogen vs. Phosphorus Limitation? George Gregory Bates College, originating largely from septic systems and fertilizers, have caused significant eutrophication in freshwater nitrogen and phosphorus grew the highest concentration of phytoplankton, but eutrophic ponds grew a mean

  12. Studies on the dynamics of limited filaments

    E-Print Network [OSTI]

    Bonde, Jeffrey David

    2010-01-01T23:59:59.000Z

    A study on the dynamics of filaments in the presence of a diagnostic, conductive limiter is presented. Plasma filaments are coherent structures present in many fusion devices and transport a significant amount of particles ...

  13. Language Modeling for limited-data domains

    E-Print Network [OSTI]

    Hsu, Bo-June (Bo-June Paul)

    2009-01-01T23:59:59.000Z

    With the increasing focus of speech recognition and natural language processing applications on domains with limited amount of in-domain training data, enhanced system performance often relies on approaches involving model ...

  14. Infinite volume limit for the dipole gas

    E-Print Network [OSTI]

    J. Dimock

    2009-04-28T23:59:59.000Z

    We consider a classical dipole gas in with low activity and show that the pressure has a limit as the volume goes to infinity. The result is obtained by a renormalization group analysis of the model.

  15. Performance limits of axial turbomachine stages

    E-Print Network [OSTI]

    Hall, David Kenneth

    2011-01-01T23:59:59.000Z

    This thesis assesses the limits of stage efficiency for axial compressor and turbine stages. A stage model is developed, consisting of a specified geometry and a surface velocity distribution with turbulent boundary layers. ...

  16. Momentum Trading and Limits to Arbitrage

    E-Print Network [OSTI]

    Armstrong, William

    2012-07-16T23:59:59.000Z

    MOMENTUM TRADING AND LIMITS TO ARBITRAGE A Dissertation by WILLIAM JOSEPH ARMSTRONG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2012... Major Subject: Finance MOMENTUM TRADING AND LIMITS TO ARBITRAGE A Dissertation by WILLIAM JOSEPH ARMSTRONG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of DOCTOR...

  17. Inequality design limits in optimal aerodynamic shapes

    E-Print Network [OSTI]

    Seaman, Charles Knight

    1968-01-01T23:59:59.000Z

    INEQUALITY DESIGN LIMITS IN OPTIMAL AERODYNAMIC SHAPES A Thesis By CHARLES KNIGHT SEAMAN Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1968... Major Subject: Aerospace Engineering INEQUALITY DESIGN LIMITS IN OPTIMAL AERODYNAMIC SHAPES A Thesis By CHARLES KNIGHT SEAMAN Approved as to style and content by: (Chairman of Committee) (Head of Department) (Member) (Member) May 1968...

  18. Representation of Limited Rights Data and Restricted Computer...

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

    Representation of Limited Rights Data and Restricted Computer Software Representation of Limited Rights Data and Restricted Computer Software Representation of Limited Rights Data...

  19. A brightness exceeding simulated Langmuir limit

    SciTech Connect (OSTI)

    Nakasuji, Mamoru [2-15-11, Serigaya-chou, Kounan-ku, Yokohama-shi, Kanagawa-ken (Japan)] [2-15-11, Serigaya-chou, Kounan-ku, Yokohama-shi, Kanagawa-ken (Japan)

    2013-08-15T23:59:59.000Z

    When an excitation of the first lens determines a beam is parallel beam, a brightness that is 100 times higher than Langmuir limit is measured experimentally, where Langmuir limits are estimated using a simulated axial cathode current density which is simulated based on a measured emission current. The measured brightness is comparable to Langmuir limit, when the lens excitation is such that an image position is slightly shorter than a lens position. Previously measured values of brightness for cathode apical radii of curvature 20, 60, 120, 240, and 480 ?m were 8.7, 5.3, 3.3, 2.4, and 3.9 times higher than their corresponding Langmuir limits, respectively, in this experiment, the lens excitation was such that the lens and the image positions were 180 mm and 400 mm, respectively. From these measured brightness for three different lens excitation conditions, it is concluded that the brightness depends on the first lens excitation. For the electron gun operated in a space charge limited condition, some of the electrons emitted from the cathode are returned to the cathode without having crossed a virtual cathode. Therefore, method that assumes a Langmuir limit defining method using a Maxwellian distribution of electron velocities may need to be revised. For the condition in which the values of the exceeding the Langmuir limit are measured, the simulated trajectories of electrons that are emitted from the cathode do not cross the optical axis at the crossover, thus the law of sines may not be valid for high brightness electron beam systems.

  20. Differentiated Storage Services Michael Mesnier, Feng Chen, Tian Luo

    E-Print Network [OSTI]

    Chen, Feng

    be handled with dif- ferent storage system policies. Specifically, when a storage system is first initialized, we include a classifier with each I/O command (e.g., SCSI), thereby allowing the storage system are exploring other classes, policies and storage system mechanisms that can be used to improve end

  1. Mixed scheduling disciplines for network flows Hanhua Feng Vishal Misra

    E-Print Network [OSTI]

    for network clients, and user impatience or some protocol defined timeout could result in wasted resources, we first prove that, if the service time distri- bution has a decreasing hazard rate (DHR), the FBPS is said to have a decreasing hazard rate (DHR) if "!$#¨&%' (!$# is monotonically decreasing, and to have

  2. Variational Multiscale Modeling of Biomolecular Complexes , Xin Feng2

    E-Print Network [OSTI]

    . Surface definitions and defects Molecular surface of protein (ID:1PPL) and its geometric singularity. We (Right Chart) of a protein (ID:1PPL). The Generalized Poisson-Boltzmann equation is solved to obtain

  3. Fission of Entangled Spins: An Electronic Structure Perspective Xintian Feng,

    E-Print Network [OSTI]

    Krylov, Anna I.

    90089-0482, United States STC "Institute for Single Crystals", National Academy of Sciences, Kharkov multiexciton binding energy (Eb) defined as the difference between the quintet and singlet multiexciton states. Even molecular energy-level considerations are not obvious although energy balance requires that ES 2

  4. Student Name Advisor Abdellah-El-Hadj, Amine Feng Liu

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Hernandez Gaitan, Franz Hugolino Roger Rangel Horne, Jeremy Ryan Hosford, Kyle Scott Samuelsen Hovakimyan Mease Marti Duran, Ferran Derek Dunn-Rankin Mayoral, Salvador Dimitri Papamoschou #12;Mclarty, Dustin

  5. Performance limits for Synthetic Aperture Radar.

    SciTech Connect (OSTI)

    Doerry, Armin Walter

    2006-02-01T23:59:59.000Z

    The performance of a Synthetic Aperture Radar (SAR) system depends on a variety of factors, many which are interdependent in some manner. It is often difficult to ''get your arms around'' the problem of ascertaining achievable performance limits, and yet those limits exist and are dictated by physics, no matter how bright the engineer tasked to generate a system design. This report identifies and explores those limits, and how they depend on hardware system parameters and environmental conditions. Ultimately, this leads to a characterization of parameters that offer optimum performance for the overall SAR system. For example, there are definite optimum frequency bands that depend on weather conditions and range, and minimum radar PRF for a fixed real antenna aperture dimension is independent of frequency. While the information herein is not new to the literature, its collection into a single report hopes to offer some value in reducing the ''seek time''.

  6. Extremal limits and black hole entropy

    E-Print Network [OSTI]

    Sean M. Carroll; Matthew C. Johnson; Lisa Randall

    2009-01-08T23:59:59.000Z

    Taking the extremal limit of a non-extremal Reissner-Nordstr\\"om black hole (by externally varying the mass or charge), the region between the inner and outer event horizons experiences an interesting fate -- while this region is absent in the extremal case, it does not disappear in the extremal limit but rather approaches a patch of $AdS_2\\times S^2$. In other words, the approach to extremality is not continuous, as the non-extremal Reissner-Nordstr\\"om solution splits into two spacetimes at extremality: an extremal black hole and a disconnected $AdS$ space. We suggest that the unusual nature of this limit may help in understanding the entropy of extremal black holes.

  7. ON COMPUTING UPPER LIMITS TO SOURCE INTENSITIES

    SciTech Connect (OSTI)

    Kashyap, Vinay L.; Siemiginowska, Aneta [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Van Dyk, David A.; Xu Jin [Department of Statistics, University of California, Irvine, CA 92697-1250 (United States); Connors, Alanna [Eureka Scientific, 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017 (United States); Freeman, Peter E. [Department of Statistics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213 (United States); Zezas, Andreas, E-mail: vkashyap@cfa.harvard.ed, E-mail: asiemiginowska@cfa.harvard.ed, E-mail: dvd@ics.uci.ed, E-mail: jinx@ics.uci.ed, E-mail: aconnors@eurekabayes.co, E-mail: pfreeman@cmu.ed, E-mail: azezas@cfa.harvard.ed [Physics Department, University of Crete, P.O. Box 2208, GR-710 03, Heraklion, Crete (Greece)

    2010-08-10T23:59:59.000Z

    A common problem in astrophysics is determining how bright a source could be and still not be detected in an observation. Despite the simplicity with which the problem can be stated, the solution involves complicated statistical issues that require careful analysis. In contrast to the more familiar confidence bound, this concept has never been formally analyzed, leading to a great variety of often ad hoc solutions. Here we formulate and describe the problem in a self-consistent manner. Detection significance is usually defined by the acceptable proportion of false positives (background fluctuations that are claimed as detections, or Type I error), and we invoke the complementary concept of false negatives (real sources that go undetected, or Type II error), based on the statistical power of a test, to compute an upper limit to the detectable source intensity. To determine the minimum intensity that a source must have for it to be detected, we first define a detection threshold and then compute the probabilities of detecting sources of various intensities at the given threshold. The intensity that corresponds to the specified Type II error probability defines that minimum intensity and is identified as the upper limit. Thus, an upper limit is a characteristic of the detection procedure rather than the strength of any particular source. It should not be confused with confidence intervals or other estimates of source intensity. This is particularly important given the large number of catalogs that are being generated from increasingly sensitive surveys. We discuss, with examples, the differences between these upper limits and confidence bounds. Both measures are useful quantities that should be reported in order to extract the most science from catalogs, though they answer different statistical questions: an upper bound describes an inference range on the source intensity, while an upper limit calibrates the detection process. We provide a recipe for computing upper limits that applies to all detection algorithms.

  8. A Geographic Redirection Service for On-line Games Chris Chambers Wu-chi Feng Wu-chang Feng

    E-Print Network [OSTI]

    @OHSU {chambers,wuchi,wuchang}@cse.ogi.edu Debanjan Saha IBM Research dsaha@us.ibm.com ABSTRACT For many on Shooters, fre- quently utilize a widely distributed server model. For the most popular FPS at this time, Counter-Strike (a variant of Half-Life), there are more than 30,000 registered servers running at any

  9. IRS Contribution Limits and OSU Retirement Programs

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    Impact: OTRS requires contributions on total compensation (salary plus benefits) without regardIRS Contribution Limits and OSU Retirement Programs The OSU Defined Contribution Plan (DCP), (for Revenue Code 401(a). The Internal Revenue Code restrictions on employer-paid contributions make

  10. DISSOLVED CONCENTRATION LIMITS OF RADIOACTIVE ELEMENTS

    SciTech Connect (OSTI)

    NA

    2004-11-22T23:59:59.000Z

    The purpose of this study is to evaluate dissolved concentration limits (also referred to as solubility limits) of elements with radioactive isotopes under probable repository conditions, based on geochemical modeling calculations using geochemical modeling tools, thermodynamic databases, field measurements, and laboratory experiments. The scope of this modeling activity is to predict dissolved concentrations or solubility limits for 14 elements with radioactive isotopes (actinium, americium, carbon, cesium, iodine, lead, neptunium, plutonium, protactinium, radium, strontium, technetium, thorium, and uranium) important to calculated dose. Model outputs for uranium, plutonium, neptunium, thorium, americium, and protactinium are in the form of tabulated functions with pH and log (line integral) CO{sub 2} as independent variables, plus one or more uncertainty terms. The solubility limits for the remaining elements are either in the form of distributions or single values. The output data from this report are fundamental inputs for Total System Performance Assessment for the License Application (TSPA-LA) to determine the estimated release of these elements from waste packages and the engineered barrier system. Consistent modeling approaches and environmental conditions were used to develop solubility models for all of the actinides. These models cover broad ranges of environmental conditions so that they are applicable to both waste packages and the invert. Uncertainties from thermodynamic data, water chemistry, temperature variation, and activity coefficients have been quantified or otherwise addressed.

  11. Quantum dynamics in the thermodynamic limit

    SciTech Connect (OSTI)

    Wezel, Jasper van [Theory of Condensed Matter, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE (United Kingdom)

    2008-08-01T23:59:59.000Z

    The description of spontaneous symmetry breaking that underlies the connection between classically ordered objects in the thermodynamic limit and their individual quantum-mechanical building blocks is one of the cornerstones of modern condensed-matter theory and has found applications in many different areas of physics. The theory of spontaneous symmetry breaking, however, is inherently an equilibrium theory, which does not address the dynamics of quantum systems in the thermodynamic limit. Here, we will use the example of a particular antiferromagnetic model system to show that the presence of a so-called thin spectrum of collective excitations with vanishing energy - one of the well-known characteristic properties shared by all symmetry-breaking objects - can allow these objects to also spontaneously break time-translation symmetry in the thermodynamic limit. As a result, that limit is found to be able, not only to reduce quantum-mechanical equilibrium averages to their classical counterparts, but also to turn individual-state quantum dynamics into classical physics. In the process, we find that the dynamical description of spontaneous symmetry breaking can also be used to shed some light on the possible origins of Born's rule. We conclude by describing an experiment on a condensate of exciton polaritons which could potentially be used to experimentally test the proposed mechanism.

  12. Flexible moldable conductive current-limiting materials

    SciTech Connect (OSTI)

    Shea, John Joseph (Pittsburgh, PA); Djordjevic, Miomir B. (Milwaukee, WI); Hanna, William Kingston (Pittsburgh, PA)

    2002-01-01T23:59:59.000Z

    A current limiting PTC device (10) has two electrodes (14) with a thin film of electric conducting polymer material (20) disposed between the electrodes, the polymer material (20) having superior flexibility and short circuit performance, where the polymer material contains short chain aliphatic diepoxide, conductive filler particles, curing agent, and, preferably, a minor amount of bisphenol A epoxy resin.

  13. EU Verbraucherrechte Apple One-Year Limited

    E-Print Network [OSTI]

    Fiebig, Peter

    EU Verbraucherrechte Apple One-Year Limited Warranty AppleCare Protection Plan CC Service Pack, Kabel. Zusätzlich bei allen Macs: 1x Time Capsule oder 1x Airport Gerät sowie 1x Apple Display Macs u sowie 1x Apple Display Material- u. Herstellungsfehler. Keine Leistung für Verschlei�teile wie Akku

  14. TRADEOFFS AND LIMITATIONS IN STATISTICALLY BASED IMAGE

    E-Print Network [OSTI]

    Hero, Alfred O.

    Tomography (Compton SPECT) system is derived, and reconstructed images from both simulated and measured data of the projection data using vector quantizers. Asymptotic expressions for the loss in the KullbackTRADEOFFS AND LIMITATIONS IN STATISTICALLY BASED IMAGE RECONSTRUCTION PROBLEMS by Thomas J. Kragh

  15. Physical Limitations on Mining Natural Earth Systems

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    Physical Limitations on Mining Natural Earth Systems A view of the Himalayas from Lhasa Tad Patzek of fossil fuels ("resources") left all over the Earth The resource size (current balance of a banking flow-based solutions (wind turbines, photovoltaics, and biofuels) will require most radical changes

  16. Economic Growth, Physical Limits and Liveability

    E-Print Network [OSTI]

    on criteria air contaminants, water use, land use, greenhouse gas emissions and solid waste disposal and population growth, impose the physical limits and then simulate household and firm responses to policy and assess the resulting implications for liveability in the region. I measure liveability using 24

  17. Diffusion limited reactions in confined environments

    E-Print Network [OSTI]

    Jeremy D. Schmit; Ercan Kamber; Jané Kondev

    2007-11-19T23:59:59.000Z

    We study the effect of confinement on diffusion limited bimolecular reactions within a lattice model where a small number of reactants diffuse amongst a much larger number of inert particles. When the number of inert particles is held constant the rate of the reaction is slow for small reaction volumes due to limited mobility from crowding, and for large reaction volumes due to the reduced concentration of the reactants. The reaction rate proceeds fastest at an intermediate confinement corresponding to volume fraction near 1/2 and 1/3 in two and three dimensions, respectively. We generalize the model to off-lattice systems with hydrodynamic coupling and predict that the optimal reaction rate for monodisperse colloidal systems occurs when the volume fraction is ~0.18. Finally, we discuss the application of our model to bimolecular reactions inside cells as well as the dynamics of confined polymers.

  18. How energy conservation limits our measurements

    E-Print Network [OSTI]

    Miguel Navascues; Sandu Popescu

    2014-04-25T23:59:59.000Z

    Observations in Quantum Mechanics are subject to complex restrictions arising from the principle of energy conservation. Determining such restrictions, however, has been so far an elusive task, and only partial results are known. In this paper we discuss how constraints on the energy spectrum of a measurement device translate into limitations on the measurements which we can effect on a target system with non-trivial energy operator. We provide efficient algorithms to characterize such limitations and we quantify them exactly when the target is a two-level quantum system. Our work thus identifies the boundaries between what is possible or impossible to measure, i.e., between what we can see or not, when energy conservation is at stake.

  19. Flow reversal power limit for the HFBR

    SciTech Connect (OSTI)

    Cheng, Lap Y.; Tichler, P.R.

    1995-10-01T23:59:59.000Z

    The High Flux Beam Reactor (HFBR) undergoes a buoyancy-driven reversal of flow in the reactor core following certain postulated accidents. Uncertainties about the afterheat removal capability during the flow reversal has limited the reactor operating power to 30 MW. An experimental and analytical program to address these uncertainties is described in this report. The experiments were single channel flow reversal tests under a range of conditions. The analytical phase involved simulations of the tests to benchmark the physical models and development of a criterion for dryout. The criterion is then used in simulations of reactor accidents to determine a safe operating power level. It is concluded that the limit on the HFBR operating power with respect to the issue of flow reversal is in excess of 60 MW.

  20. Probabilistic Turing Machine and Landauer Limit

    E-Print Network [OSTI]

    Marco Frasca

    2012-06-04T23:59:59.000Z

    We show the equivalence between a probabilistic Turing machine and the time evolution of a one-dimensional Ising model, the Glauber model in one dimension, equilibrium positions representing the results of computations of the Turing machine. This equivalence permits to map a physical system on a computational system providing in this way an evaluation of the entropy at the end of computation. The result agrees with Landauer limit.

  1. Probabilistic Turing Machine and Landauer Limit

    E-Print Network [OSTI]

    Frasca, Marco

    2012-01-01T23:59:59.000Z

    We show the equivalence between a probabilistic Turing machine and the time evolution of a one-dimensional Ising model, the Glauber model in one dimension, equilibrium positions representing the results of computations of the Turing machine. This equivalence permits to map a physical system on a computational system providing in this way an evaluation of the entropy at the end of computation. The result agrees with Landauer limit.

  2. DISSOLVED CONCENTRATION LIMITS OF RADIOACTIVE ELEMENTS

    SciTech Connect (OSTI)

    P. Bernot

    2005-07-13T23:59:59.000Z

    The purpose of this study is to evaluate dissolved concentration limits (also referred to as solubility limits) of elements with radioactive isotopes under probable repository conditions, based on geochemical modeling calculations using geochemical modeling tools, thermodynamic databases, field measurements, and laboratory experiments. The scope of this activity is to predict dissolved concentrations or solubility limits for elements with radioactive isotopes (actinium, americium, carbon, cesium, iodine, lead, neptunium, plutonium, protactinium, radium, strontium, technetium, thorium, and uranium) relevant to calculated dose. Model outputs for uranium, plutonium, neptunium, thorium, americium, and protactinium are provided in the form of tabulated functions with pH and log fCO{sub 2} as independent variables, plus one or more uncertainty terms. The solubility limits for the remaining elements are either in the form of distributions or single values. Even though selection of an appropriate set of radionuclides documented in Radionuclide Screening (BSC 2002 [DIRS 160059]) includes actinium, transport of Ac is not modeled in the total system performance assessment for the license application (TSPA-LA) model because of its extremely short half-life. Actinium dose is calculated in the TSPA-LA by assuming secular equilibrium with {sup 231}Pa (Section 6.10); therefore, Ac is not analyzed in this report. The output data from this report are fundamental inputs for TSPA-LA used to determine the estimated release of these elements from waste packages and the engineered barrier system. Consistent modeling approaches and environmental conditions were used to develop solubility models for the actinides discussed in this report. These models cover broad ranges of environmental conditions so they are applicable to both waste packages and the invert. Uncertainties from thermodynamic data, water chemistry, temperature variation, and activity coefficients have been quantified or otherwise addressed.

  3. Toxicity Data to Determine Refrigerant Concentration Limits

    SciTech Connect (OSTI)

    Calm, James M.

    2000-09-30T23:59:59.000Z

    This report reviews toxicity data, identifies sources for them, and presents resulting exposure limits for refrigerants for consideration by qualified parties in developing safety guides, standards, codes, and regulations. It outlines a method to calculate an acute toxicity exposure limit (ATEL) and from it a recommended refrigerant concentration limit (RCL) for emergency exposures. The report focuses on acute toxicity with particular attention to lethality, cardiac sensitization, anesthetic and central nervous system effects, and other escape-impairing effects. It addresses R-11, R-12, R-22, R-23, R-113, R-114, R-116, R-123, R-124, R-125, R-134, R-134a, R-E134, R-141b, R-142b, R-143a, R-152a, R-218, R-227ea, R-236fa, R-245ca, R-245fa, R-290, R-500, R-502, R-600a, R-717, and R-744. It summarizes additional data for R-14, R-115, R-170 (ethane), R-C318, R-600 (n-butane), and R-1270 (propylene) to enable calculation of limits for blends incorporating them. The report summarizes the data a nd related safety information, including classifications and flammability data. It also presents a series of tables with proposed ATEL and RCL concentrations-in dimensionless form and the latter also in both metric (SI) and inch-pound (IP) units of measure-for both the cited refrigerants and 66 zerotropic and azeotropic blends. They include common refrigerants, such as R-404A, R-407C, R-410A, and R-507A, as well as others in commercial or developmental status. Appendices provide profiles for the cited single-compound refrigerants and for R-500 and R-502 as well as narrative toxicity summaries for common refrigerants. The report includes an extensive set of references.

  4. Centro Renewables Holding Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORT Americium/CuriumSunways JVGroup India JumpToolsGuajiruHolding Limited

  5. Means for limiting and ameliorating electrode shorting

    SciTech Connect (OSTI)

    Van Konynenburg, Richard A. (Livermore, CA); Farmer, Joseph C. (Tracy, CA)

    1999-01-01T23:59:59.000Z

    A fuse and filter arrangement for limiting and ameliorating electrode shorting in capacitive deionization water purification systems utilizing carbon aerogel, for example. This arrangement limits and ameliorates the effects of conducting particles or debonded carbon aerogel in shorting the electrodes of a system such as a capacitive deionization water purification system. This is important because of the small interelectrode spacing and the finite possibility of debonding or fragmentation of carbon aerogel in a large system. The fuse and filter arrangement electrically protect the entire system from shutting down if a single pair of electrodes is shorted and mechanically prevents a conducting particle from migrating through the electrode stack, shorting a series of electrode pairs in sequence. It also limits the amount of energy released in a shorting event. The arrangement consists of a set of circuit breakers or fuses with one fuse or breaker in the power line connected to one electrode of each electrode pair and a set of screens of filters in the water flow channels between each set of electrode pairs.

  6. Means for limiting and ameliorating electrode shorting

    SciTech Connect (OSTI)

    Konynenburg, R.A. van; Farmer, J.C.

    1999-11-09T23:59:59.000Z

    A fuse and filter arrangement is described for limiting and ameliorating electrode shorting in capacitive deionization water purification systems utilizing carbon aerogel, for example. This arrangement limits and ameliorates the effects of conducting particles or debonded carbon aerogel in shorting the electrodes of a system such as a capacitive deionization water purification system. This is important because of the small interelectrode spacing and the finite possibility of debonding or fragmentation of carbon aerogel in a large system. The fuse and filter arrangement electrically protect the entire system from shutting down if a single pair of electrodes is shorted and mechanically prevents a conducting particle from migrating through the electrode stack, shorting a series of electrode pairs in sequence. It also limits the amount of energy released in a shorting event. The arrangement consists of a set of circuit breakers or fuses with one fuse or breaker in the power line connected to one electrode of each electrode pair and a set of screens of filters in the water flow channels between each set of electrode pairs.

  7. Assessing Possibilities & Limits for Solar Cells

    E-Print Network [OSTI]

    Nayak, Pabitra K; Cahen, David

    2011-01-01T23:59:59.000Z

    What are the solar cell efficiencies that we can strive towards? We show here that several simple criteria, based on cell and module performance data, serve to evaluate and compare all types of today's solar cells. Analyzing these data allows to gauge in how far significant progress can be expected for the various cell types and, most importantly from both the science and technology points of view, if basic bounds, beyond those known today, may exist, that can limit such progress. This is important, because half a century after Shockley and Queisser (SQ) presented limits, based on detailed balance calculations for single absorber solar cells, those are still held to be the only ones, we need to consider; most efforts to go beyond SQ are directed towards attempts to circumvent them, primarily via smart optics, or optoelectronics. After formulating the criteria and analyzing known loss mechanisms, use of such criteria suggests - additional limits for newer types of cells, Organic and Dye-Sensitized ones, and th...

  8. Limitations and improvements for harmonic generation measurements

    SciTech Connect (OSTI)

    Best, Steven; Croxford, Anthony; Neild, Simon [Department of Mechanical Engineering, Queens Building, University Walk, Bristol BS8 1TR (United Kingdom)

    2014-02-18T23:59:59.000Z

    A typical acoustic harmonic generation measurement comes with certain limitations. Firstly, the use of the plane wave-based analysis used to extract the nonlinear parameter, ?, ignores the effects of diffraction, attenuation and receiver averaging which are common to most experiments, and may therefore limit the accuracy of a measurement. Secondly, the method usually requires data obtained from a through-transmission type setup, which may not be practical in a field measurement scenario where access to the component is limited. Thirdly, the technique lacks a means of pinpointing areas of damage in a component, as the measured nonlinearity represents an average over the length of signal propagation. Here we describe a three-dimensional model of harmonic generation in a sound beam, which is intended to provide a more realistic representation of a typical experiment. The presence of a reflecting boundary is then incorporated into the model to assess the feasibility of performing single-sided measurements. Experimental validation is provided where possible. Finally, a focusing acoustic source is modelled to provide a theoretical indication of the afforded advantages when the nonlinearity is localized.

  9. Resource Limited Theories and their Extensions

    E-Print Network [OSTI]

    Paul Benioff

    2003-04-24T23:59:59.000Z

    This work is based on the idea that extension of physical and mathematical theories to include the amount of space, time, momentum, and energy resources required to determine properties of systems may influence what is true in physics and mathematics at a foundational level. Background material, on the dependence of region or system sizes on both the resources required to study the regions or systems and the indirectness of the reality status of the systems, suggests that one associate to each amount, r, of resources a domain, D_{r}, a theory, T_{r}, and a language, L_{r}. D_{r} is limited in that all statements in D_{r} require at most r resources to verify or refute. T_{r} is limited in that any theorem of T_{r} must be provable using at most r resources. Also any theorem of T_{r} must be true in D_{r}. L_{r} is limited in that all expressions in L_{r} require at most r resources to create, display, and maintain. A partial ordering of the resources is used to describe minimal use of resources, a partial ordering of the T_{r}, and motion of an observer using resources to acquire knowledge. Reflection principles are used to push the effect of Godel's incompleteness theorem on consistency up in the partial ordering. It is suggested that a coherent theory of physics and mathematics, or theory of everything, is a common extension of all the T_{r}.

  10. Transcending the Limits of Turing Computability

    E-Print Network [OSTI]

    Vadim A. Adamyan; Cristian S. Calude; Boris S. Pavlov

    2003-05-11T23:59:59.000Z

    Hypercomputation or super-Turing computation is a ``computation'' that transcends the limit imposed by Turing's model of computability. The field still faces some basic questions, technical (can we mathematically and/or physically build a hypercomputer?), cognitive (can hypercomputers realize the AI dream?), philosophical (is thinking more than computing?). The aim of this paper is to address the question: can we mathematically build a hypercomputer? We will discuss the solutions of the Infinite Merchant Problem, a decision problem equivalent to the Halting Problem, based on results obtained in \\cite{Coins,acp}. The accent will be on the new computational technique and results rather than formal proofs.

  11. Unitary limit in cross Andreev transport

    E-Print Network [OSTI]

    I. A. Sadovskyy; G. B. Lesovik; V. M. Vinokur

    2014-12-28T23:59:59.000Z

    Crossed Andreev reflection (CAR) in which Cooper pair splits into two spin- and energy entangled electrons that leave a superconductor through respective spatially separated leads is one of the most promising approaches to generating pairs of entangled electrons. However, while the conventional (local) Andreev reflection occurs with the probability of unity, the probability of CAR is significantly suppressed. Here we propose a hybrid normal metal-superconductor setup that enables achieving a unitary limit of cross Andreev transport, i.e. CAR with the probability of unity thus offering the outcome of the entangled electrons with the 100% efficiency.

  12. Colony Mills Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin: Energy,(EC-LEDS) | Open EnergyColony Mills Limited Jump to:

  13. Armaec Energy Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300AlgoilEnergyElectric Coop Corp Place:Armaec Energy Limited Jump to:

  14. London Array Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende New Energy Co Ltd JumpLightSource Renewables HomeLimited

  15. Transmission Capital Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark JumpDetective:Toyo Aluminium KKCapital Limited Jump to:

  16. Unionmet Singapore Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTagusparkCalculator Jump to:Unionmet Singapore Limited Jump to:

  17. Carbon Trust Enterprises Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis aCallahan DivideCannon (Various)Limited Jump to:

  18. 4C Offshore Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskey Flatshydro Homepowering9century GreenE JumpLimited Jump

  19. Biodiesel Energy Trading Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarre Biomass FacilityOregon:GreatBioGold FuelsTrading Limited

  20. Clipper Windpower Europe Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORT Americium/CuriumSunways JVGroupChoice Electric(CTI) JumpLimited Jump

  1. Cape Systems Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacility | Open EnergySolar33.6850215°,Hatteras ElecLimited Jump

  2. Carbon Limiting Technologies | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacility | OpenCarboPur Technologies JumpJungle Jump to:Limiting

  3. CarbonPlan Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacility | OpenCarboPur Technologies JumpJungleCarbonPlan Limited

  4. (Expired) Nationwide Limited Public Interest Waiver for LED Lighting...

    Energy Savers [EERE]

    (Expired) Nationwide Limited Public Interest Waiver for LED Lighting and HVAC Units: February 11, 2010 (Expired) Nationwide Limited Public Interest Waiver for LED Lighting and HVAC...

  5. Thickness dependent self limiting 1-D tin oxide nanowire arrays...

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

    dependent self limiting 1-D tin oxide nanowire arrays by nanosecond pulsed laser irradiation. Thickness dependent self limiting 1-D tin oxide nanowire arrays by nanosecond pulsed...

  6. approaching fundamental limits: Topics by E-print Network

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

    approaches often focus on delineating the fundamental limits of the individual modules when functionalities one is interested in describing the fundamental limits of the...

  7. Karnataka Power Corporation Limited and National Thermal Power...

    Open Energy Info (EERE)

    Limited and National Thermal Power Corporation JV Jump to: navigation, search Name: Karnataka Power Corporation Limited and National Thermal Power Corporation JV Place: India...

  8. LIMITS OF Nb3Sn ACCELERATOR MAGNETS

    SciTech Connect (OSTI)

    Caspi, Shlomo; Ferracin, Paolo

    2005-05-01T23:59:59.000Z

    Pushing accelerator magnets beyond 10 T holds a promise of future upgrades to machines like the Tevatron at Fermilab and the LHC at CERN. Exceeding the current density limits of NbTi superconductor, Nb{sub 3}Sn is at present the only practical superconductor capable of generating fields beyond 10 T. Several Nb{sub 3}Sn pilot magnets, with fields as high as 16 T, have been built and tested, paving the way for future attempts at fields approaching 20 T. High current density conductor is required to generate high fields with reduced conductor volume. However this significantly increases the Lorentz force and stress. Future designs of coils and structures will require managing stresses of several 100's of MPa and forces of 10's of MN/m. The combined engineering requirements on size and cost of accelerator magnets will involve magnet technology that diverges from the one currently used with NbTi conductor. In this paper we shall address how far the engineering of high field magnets can be pushed, and what are the issues and limitations before such magnets can be used in particle accelerators.

  9. Flammability limits of dusts: Minimum inerting concentrations

    SciTech Connect (OSTI)

    Dastidar, A.G.; Amyotte, P.R. [Dalhousie Univ., Halifax, Nova Scotia (Canada). Dept. of Chemical Engineering] [Dalhousie Univ., Halifax, Nova Scotia (Canada). Dept. of Chemical Engineering; Going, J.; Chatrathi, K. [Fike Corp., Blue Springs, MO (United States)] [Fike Corp., Blue Springs, MO (United States)

    1999-05-01T23:59:59.000Z

    A new flammability limit parameter has been defined as the Minimum Inerting Concentration (MIC). This is the concentration of inertant required to prevent a dust explosion regardless of fuel concentration. Previous experimental work at Fike in a 1-m{sup 3} spherical chamber has shown this flammability limit to exist for pulverized coal dust and cornstarch. In the current work, inerting experiments with aluminum, anthraquinone and polyethylene dusts as fuels were performed, using monoammonium phosphate and sodium bicarbonate as inertants. The results show that an MIC exists only for anthraquinone inerted with sodium bicarbonate. The other combustible dust and inertant mixtures did not show a definitive MIC, although they did show a strong dependence between inerting level and suspended fuel concentration. As the fuel concentration increased, the amount of inertant required to prevent an explosion decreased. Even though a definitive MIC was not found for most of the dusts an effective MIC can be estimated from the data. The use of MIC data can aid in the design of explosion suppression schemes.

  10. Factorization of tree QCD amplitudes in the high-energy limit and in the collinear limit

    E-Print Network [OSTI]

    Vittorio Del Duca; Alberto Frizzo; Fabio Maltoni

    1999-10-12T23:59:59.000Z

    In the high-energy limit, we compute the gauge-invariant three-parton forward clusters, which in the BFKL theory constitute the tree parts of the NNLO impact factors. In the triple collinear limit, we obtain the polarized double-splitting functions. For the unpolarized and the spin-correlated double-splitting functions, our results agree with the ones obtained by Campbell-Glover and Catani-Grazzini, respectively. In addition, we compute the four-gluon forward cluster, which in the BFKL theory forms the tree part of the NNNLO gluonic impact factor. In the quadruple collinear limit we obtain the unpolarized triple-splitting functions, while in the limit of a three-parton central cluster we derive the Lipatov vertex for the production of three gluons, relevant for the calculation of a BFKL ladder at NNLL accuracy. Finally, motivated by the reorganization of the color in the high-energy limit, we introduce a color decomposition of the purely gluonic tree amplitudes in terms of the linearly independent subamplitudes only.

  11. Authorized limits for Fernald copper ingots

    SciTech Connect (OSTI)

    Frink, N.; Kamboj, S.; Hensley, J.; Chen, S.Y.

    1997-09-01T23:59:59.000Z

    This development document contains data and analysis to support the approval of authorized limits for the unrestricted release of 59 t of copper ingots containing residual radioactive material from the U.S. Department of Energy (DOE) Fernald Environmental Management Project (FEMP). The analysis presented in this document comply with the requirements of DOE Order 5400.5, {open_quotes}Radiation Protection of the Public and the Environment,{close_quotes} as well as the requirements of the proposed promulgation of this order as 10 CFR Part 834. The document was developed following the step-by-step process described in the Draft Handbook for Controlling Release for Reuse or Recycle Property Containing Residual Radioactive Material.

  12. The Gaiasphere and the limits of knowledge

    E-Print Network [OSTI]

    J. Bland-Hawthorn

    2002-08-16T23:59:59.000Z

    At the heart of a successful theory of galaxy formation must be a detailed physical understanding of the dissipational processes which form spiral galaxies. To what extent can we unravel the events that produced the Galaxy as we see it today? Could some of the residual inhomogeneities from prehistory have escaped the dissipative process at an early stage? To make a comprehensive inventory of surviving inhomogeneities would require a vast catalog of stellar properties that is presently out of reach. The Gaia space astrometry mission, set to launch at the end of the decade, will acquire detailed phase space coordinates for about one billion stars, within a sphere of diameter 20 kpc -- the Gaiasphere. Here we look forward to a time when all stars within the Gaiasphere have complete chemical abundance measurements (including alpha, s and r process elements). Even with such a vast increase in information, there may exist fundamental -- but unproven -- limits to unravelling the observed complexity.

  13. Ideal Quantum Gases with Planck Scale Limitations

    E-Print Network [OSTI]

    Collier, Rainer

    2015-01-01T23:59:59.000Z

    A thermodynamic system of non-interacting quantum particles changes its statistical distribution formulas if there is a universal limitation for the size of energetic quantum leaps (magnitude of quantum leaps smaller than Planck energy). By means of a restriction of the a priori equiprobability postulate one can reach a thermodynamic foundation of these corrected distribution formulas. The number of microstates is determined by means of a suitable counting method and combined with thermodynamics via the Boltzmann principle. The result is that, for particle energies that come close to the Planck energy, the thermodynamic difference between fermion and boson distribution vanishes. Both distributions then approximate a Boltzmann distribution. The wave and particle character of the quantum particles, too, can be influenced by choosing the size of the temperature and particle energy parameters relative to the Planck energy, as you can see from the associated fluctuation formulas. In the case of non-relativistic de...

  14. Self field triggered superconducting fault current limiter

    DOE Patents [OSTI]

    Tekletsadik, Kasegn D. (Rexford, NY)

    2008-02-19T23:59:59.000Z

    A superconducting fault current limiter array with a plurality of superconductor elements arranged in a meanding array having an even number of supconductors parallel to each other and arranged in a plane that is parallel to an odd number of the plurality of superconductors, where the odd number of supconductors are parallel to each other and arranged in a plane that is parallel to the even number of the plurality of superconductors, when viewed from a top view. The even number of superconductors are coupled at the upper end to the upper end of the odd number of superconductors. A plurality of lower shunt coils each coupled to the lower end of each of the even number of superconductors and a plurality of upper shunt coils each coupled to the upper end of each of the odd number of superconductors so as to generate a generally orthoganal uniform magnetic field during quenching using only the magenetic field generated by the superconductors.

  15. Efficiency limits of quantum well solar cells

    E-Print Network [OSTI]

    Connolly, J P; Barnham, K W J; Bushnell, D B; Tibbits, T N D; Roberts, J S

    2010-01-01T23:59:59.000Z

    The quantum well solar cell (QWSC) has been proposed as a flexible means to ensuring current matching for tandem cells. This paper explores the further advantage afforded by the indication that QWSCs operate in the radiative limit because radiative contribution to the dark current is seen to dominate in experimental data at biases corresponding to operation under concentration. The dark currents of QWSCs are analysed in terms of a light and dark current model. The model calculates the spectral response (QE) from field bearing regions and charge neutral layers and from the quantum wells by calculating the confined densities of states and absorption coefficient, and solving transport equations analytically. The total dark current is expressed as the sum of depletion layer and charge neutral radiative and non radiative currents consistent with parameter values extracted from QE fits to data. The depletion layer dark current is a sum of Shockley-Read-Hall non radiative, and radiative contributions. The charge neu...

  16. Neutral depletion and the helicon density limit

    SciTech Connect (OSTI)

    Magee, R. M.; Galante, M. E.; Carr, J. Jr.; Lusk, G.; McCarren, D. W.; Scime, E. E. [West Virginia University, Morgantown, West Virginia 26506 (United States)] [West Virginia University, Morgantown, West Virginia 26506 (United States)

    2013-12-15T23:59:59.000Z

    It is straightforward to create fully ionized plasmas with modest rf power in a helicon. It is difficult, however, to create plasmas with density >10{sup 20} m{sup ?3}, because neutral depletion leads to a lack of fuel. In order to address this density limit, we present fast (1 MHz), time-resolved measurements of the neutral density at and downstream from the rf antenna in krypton helicon plasmas. At the start of the discharge, the neutral density underneath the antenna is reduced to 1% of its initial value in 15 ?s. The ionization rate inferred from these data implies that the electron temperature near the antenna is much higher than the electron temperature measured downstream. Neutral density measurements made downstream from the antenna show much slower depletion, requiring 14 ms to decrease by a factor of 1/e. Furthermore, the downstream depletion appears to be due to neutral pumping rather than ionization.

  17. Instability limits for spontaneous double layer formation

    SciTech Connect (OSTI)

    Carr, J. Jr. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States) [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Department of Physics, Texas Lutheran University, Seguin, Texas 78155 (United States); Galante, M. E.; McCarren, D.; Scime, E. E.; Sears, S.; VanDervort, R. W. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)] [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Magee, R. M. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States) [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); TriAlpha Energy, Inc., Foothill Ranch, California 92610 (United States); Reynolds, E. [Department of Physics and Engineering, West Virginia Wesleyan, Buckhannon, West Virginia 26201 (United States)] [Department of Physics and Engineering, West Virginia Wesleyan, Buckhannon, West Virginia 26201 (United States)

    2013-11-15T23:59:59.000Z

    We present time-resolved measurements that demonstrate that large amplitude electrostatic instabilities appear in pulsed, expanding helicon plasmas at the same time as particularly strong double layers appear in the expansion region. A significant cross-correlation between the electrostatic fluctuations and fluctuations in the number of ions accelerated by the double layer electric field is observed. No correlation is observed between the electrostatic fluctuations and ions that have not passed through the double layer. These measurements confirm that the simultaneous appearance of the electrostatic fluctuations and the double layer is not simple coincidence. In fact, the accelerated ion population is responsible for the growth of the instability. The double layer strength, and therefore, the velocity of the accelerated ions, is limited by the appearance of the electrostatic instability.

  18. Quantum limits to estimation of photon deformation

    E-Print Network [OSTI]

    Giovanni De Cillis; Matteo G. A. Paris

    2014-07-08T23:59:59.000Z

    We address potential deviations of radiation field from the bosonic behaviour and employ local quantum estimation theory to evaluate the ultimate bounds to precision in the estimation of these deviations using quantum-limited measurements on optical signals. We consider different classes of boson deformation and found that intensity measurement on coherent or thermal states would be suitable for their detection making, at least in principle, tests of boson deformation feasible with current quantum optical technology. On the other hand, we found that the quantum signal-to-noise ratio (QSNR) is vanishing with the deformation itself for all the considered classes of deformations and probe signals, thus making any estimation procedure of photon deformation inherently inefficient. A partial way out is provided by the polynomial dependence of the QSNR on the average number of photon, which suggests that, in principle, it would be possible to detect deformation by intensity measurements on high-energy thermal states.

  19. 2008 Macmillan Publishers Limited. All rights reserved. 2008 Macmillan Publishers Limited. All rights reserved. NEWS & VIEWS

    E-Print Network [OSTI]

    Marchant, David R.

    are offset by warming-induced increases in carbon loss2,12 . The results of Sokolov and co- workers.nature.com/naturegeoscience nitrogen limitations on plant growth. Thus carbon uptake during plant growth exceeds carbon loss from soils, and terrestrial carbon accumulates with warming (Fig. 1b). In contrast, carbon-only models predict a decrease

  20. Energy-Limited vs. Interference-Limited Ad Hoc Network Capacity

    E-Print Network [OSTI]

    Jindal, Nihar

    , signal and interference power increase proportionally while thermal noise power remains constant. Thus are thermal noise and multi- user interference. If the power of each simultaneous trans- mission is increased-limited, and any further increase in transmission power provides essentially no benefit. On the other hand, thermal

  1. The ultimate downscaling limit of FETs.

    SciTech Connect (OSTI)

    Mamaluy, Denis; Gao, Xujiao; Tierney, Brian David

    2014-10-01T23:59:59.000Z

    We created a highly efficient, universal 3D quant um transport simulator. We demonstrated that the simulator scales linearly - both with the problem size (N) and number of CPUs, which presents an important break-through in the field of computational nanoelectronics. It allowed us, for the first time, to accurately simulate and optim ize a large number of realistic nanodevices in a much shorter time, when compared to other methods/codes such as RGF[~N 2.333 ]/KNIT, KWANT, and QTBM[~N 3 ]/NEMO5. In order to determine the best-in-class for different beyond-CMOS paradigms, we performed rigorous device optimization for high-performance logic devices at 6-, 5- and 4-nm gate lengths. We have discovered that there exists a fundamental down-scaling limit for CMOS technology and other Field-Effect Transistors (FETs). We have found that, at room temperatures, all FETs, irre spective of their channel material, will start experiencing unacceptable level of thermally induced errors around 5-nm gate lengths.

  2. Prospects and Limitations of Algorithmic Cooling

    E-Print Network [OSTI]

    Gilles Brassard; Yuval Elias; Tal Mor; Yossi Weinstein

    2014-04-27T23:59:59.000Z

    Heat-bath algorithmic cooling (AC) of spins is a theoretically powerful effective cooling approach, that (ideally) cools spins with low polarization exponentially better than cooling by reversible entropy manipulations alone. Here, we investigate the limitations and prospects of AC. For non-ideal and semioptimal AC, we study the impact of finite relaxation times of reset and computation spins on the achievable effective cooling. We derive, via simulations, the attainable cooling levels for given ratios of relaxation times using two semioptimal practicable algorithms. We expect this analysis to be valuable for the planning of future experiments. For ideal and optimal AC, we make use of lower bounds on the number of required reset steps, based on entropy considerations, to present important consequences of using AC as a tool for improving signal-to-noise ratio in liquid-state magnetic resonance spectroscopy. We discuss the potential use of AC for noninvasive clinical diagnosis and drug monitoring, where it may have significantly lower specific absorption rate (SAR) with respect to currently used methods.

  3. Limited-field radiation for bifocal germinoma

    SciTech Connect (OSTI)

    Lafay-Cousin, Lucie [Pediatric Brain Tumor Program, Hospital for Sick Children, Toronto, Ontario (Canada)]. E-mail: lucie.lafay-cousin@sickkids.ca; Millar, Barbara-Ann [Department of Radiation Oncology, Princess Margaret Hospital, Toronto, Ontario (Canada); Mabbott, Donald [Pediatric Brain Tumor Program, Hospital for Sick Children, Toronto, Ontario (Canada); Department of Psychology, Hospital for Sick Children, Toronto, Ontario (Canada); Spiegler, Brenda [Department of Psychology, Hospital for Sick Children, Toronto, Ontario (Canada); Drake, Jim [Department of Neurosurgery, Hospital for Sick Children, Toronto, Ontario (Canada); Bartels, Ute [Pediatric Brain Tumor Program, Hospital for Sick Children, Toronto, Ontario (Canada); Huang, Annie [Pediatric Brain Tumor Program, Hospital for Sick Children, Toronto, Ontario (Canada); Bouffet, Eric [Pediatric Brain Tumor Program, Hospital for Sick Children, Toronto, Ontario (Canada)

    2006-06-01T23:59:59.000Z

    Purpose: To report the incidence, characteristics, treatment, and outcomes of bifocal germinomas treated with chemotherapy followed by focal radiation. Methods and Materials: This was a retrospective review. Inclusion criteria included radiologic diagnosis of bifocal germinoma involving the pineal and neurohypophyseal region, no evidence of dissemination on spinal MRI, negative results from cerebrospinal fluid cytologic evaluation, and negative tumor markers. Results: Between 1995 and 2004, 6 patients (5 male, 1 female; median age, 12.8 years) fulfilled the inclusion criteria. All had symptoms of diabetes insipidus at presentation. On MRI, 4 patients had a pineal and suprasellar mass, and 2 had a pineal mass associated with abnormal neurohypophyseal enhancement. All patients received chemotherapy followed by limited-field radiation and achieved complete remission after chemotherapy. The radiation field involved the whole ventricular system (range, 2,400-4,000 cGy) with or without a boost to the primary lesions. All patients remain in complete remission at a median follow-up of 48.1 months (range, 9-73.4 months). Conclusions: This experience suggests that bifocal germinoma can be considered a locoregional rather than a metastatic disease. Chemotherapy and focal radiotherapy might be sufficient to provide excellent outcomes. Staging refinement with new diagnostic tools will likely increase the incidence of the entity.

  4. The limits of the nuclear landscape

    SciTech Connect (OSTI)

    Nazarewicz, Witold [ORNL; Erler, J. [Oak Ridge National Laboratory (ORNL); Birge, N. [University of Tennessee, Knoxville (UTK); Kortelainen, E. M. [University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL); Olsen, E. [University of Tennessee, Knoxville (UTK); Perhac, A. [University of Tennessee, Knoxville (UTK); Stoitsov, M. [University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)

    2012-01-01T23:59:59.000Z

    In 2011, 100 new nuclides were discovered1. They joined the approximately 3,000 stable and radioactive nuclides that either occur naturally on Earth or are synthesized in the laboratory2,3. Every atomic nucleus, characterized by a specific number of protons and neutrons, occupies a spot on the chart of nuclides, which is bounded by drip lines indicating the values of neutron and proton number at which nuclear binding ends. The placement of the neutron drip line for the heavier elements is based on theoretical predictions using extreme extrapolations, and so is uncertain. However, it is not known how uncertain it is or how many protons and neutrons can be bound in a nucleus. Here we estimate these limits of the nuclear landscape and provide statistical and systematic uncertainties for our predictions. We use nuclear density functional theory, several Skyrme interactions and high-performance computing, and find that the number of bound nuclides with between 2 and 120 protons is around 7,000. We find that extrapolations for drip-line positions and selected nuclear properties, including neutron separation energies relevant to astrophysical processes, are very consistent between the models used.

  5. Limits on New Physics from Black Holes

    E-Print Network [OSTI]

    Clifford Cheung; Stefan Leichenauer

    2014-08-02T23:59:59.000Z

    Black holes emit high energy particles which induce a finite density potential for any scalar field $\\phi$ coupling to the emitted quanta. Due to energetic considerations, $\\phi$ evolves locally to minimize the effective masses of the outgoing states. In theories where $\\phi$ resides at a metastable minimum, this effect can drive $\\phi$ over its potential barrier and classically catalyze the decay of the vacuum. Because this is not a tunneling process, the decay rate is not exponentially suppressed and a single black hole in our past light cone may be sufficient to activate the decay. Moreover, decaying black holes radiate at ever higher temperatures, so they eventually probe the full spectrum of particles coupling to $\\phi$. We present a detailed analysis of vacuum decay catalyzed by a single particle, as well as by a black hole. The former is possible provided large couplings or a weak potential barrier. In contrast, the latter occurs much more easily and places new stringent limits on theories with hierarchical spectra. Finally, we comment on how these constraints apply to the standard model and its extensions, e.g. metastable supersymmetry breaking.

  6. Limited Electricity Generation Supply and Limited Natural Gas Supply Cases (released in AEO2008)

    Reports and Publications (EIA)

    2008-01-01T23:59:59.000Z

    Development of U.S. energy resources and the permitting and construction of large energy facilities have become increasingly difficult over the past 20 years, and they could become even more difficult in the future. Growing public concern about global warming and CO2 emissions also casts doubt on future consumption of fossil fuels -- particularly coal, which releases the largest amount of CO2 per unit of energy produced. Even without regulations to limit greenhouse gas emissions in the United States, the investment community may already be limiting the future use of some energy options. In addition, there is considerable uncertainty about the future availability of, and access to, both domestic and foreign natural gas resources.

  7. Peer Review in Academic Promotion and Publishing: Its Meaning, Locus, and Future

    E-Print Network [OSTI]

    Harley, Diane; Acord, Sophia Krzys

    2011-01-01T23:59:59.000Z

    id=260. Harley, Diane, Sophia Krzys Acord, Sarah Earl-id=295. Harley, Diane and Sophia Krzys Acord. 2011.Background Papers Diane Harley and Sophia Krzys Acord with

  8. arctec canada limited: Topics by E-print Network

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

    and to define the contemporary limit of permafrost Moorman, Brian 8 Atomic Energy of Canada Limited CiteSeer Summary: CANDU natural uranium fuel is an outstanding product that...

  9. Overcoming the far-field diffraction limit via absorbance modulation

    E-Print Network [OSTI]

    Tsai, Hsin-Yu Sidney

    2011-01-01T23:59:59.000Z

    Diffraction limits the resolution of far-field lithography and imaging to about half of the wavelength, which greatly limits the capability of optical techniques. The proposed technique with absorbance modulation aims to ...

  10. acid limitation induces: Topics by E-print Network

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

    Wayne 2012-06-07 10 WAVE STRUCTURE INDUCED BY FLUID DYNAMIC LIMITS IN THE BROADWELL MODEL Mathematics Websites Summary: WAVE STRUCTURE INDUCED BY FLUID DYNAMIC LIMITS IN THE...

  11. Fertility Limits on Local Politicians in India Abhishek Chakravarty

    E-Print Network [OSTI]

    Bandyopadhyay, Antar

    .g., sterilization incentives in India). This paper examines a novel policy experiment that imposes fertility limitsFertility Limits on Local Politicians in India S Anukriti Abhishek Chakravarty September 19, 2014: political leaders. Keywords: India, Local Elections, Fertility Limits, Sex Ratios, Population Control We

  12. Constrained sinogram restoration for limited-angle Jerry L. Prince

    E-Print Network [OSTI]

    Willsky, Alan S.

    for further re- search. Subject terms: image reconstruction; computed tomography; regularization; limitedConstrained sinogram restoration for limited-angle tomography Jerry L. Prince The Johns Hopkins-437 Cambridge, Massachusetts 02139 CONTENTS 1. Introduction 2. Limited-angle tomography 3. Sinogram restoration

  13. Finding the Lower Stellar Mass Limit Observationally Justin Cantrell

    E-Print Network [OSTI]

    Wiita, Paul J.

    saying: "1. Objects with true masses below the limiting mass for thermonuclear fusion of deuterium masses above the limiting mass for thermonuclear fusion of deuterium are "brown dwarfs", no matter how below the limiting mass for thermonuclear fusion of deuterium are not "planets", but are "sub

  14. Mental Training Affects Distribution of Limited Brain Resources

    E-Print Network [OSTI]

    Nieuwenhuis, Sander

    Mental Training Affects Distribution of Limited Brain Resources Heleen A. Slagter1 , Antoine Lutz1 is believed to result from competition between the two targets for limited attentional resources. Here we show, or mental training, affects the distribution of limited brain resources. Three months of intensive mental

  15. A -calculus with limited resources, garbage-collection and guarantees

    E-Print Network [OSTI]

    Teller, David

    A -calculus with limited resources, garbage-collection and guarantees David Teller Abstract. Techniques such as mobility and distribution are often used to overcome limitations of resources at formalizing the notion of limited resources in process algebras for mobility and distribution. In this paper

  16. HAIM GAIFMAN REASONING WITH LIMITED RESOURCES AND ASSIGNING

    E-Print Network [OSTI]

    Fitelson, Branden

    HAIM GAIFMAN REASONING WITH LIMITED RESOURCES AND ASSIGNING PROBABILITIES TO ARITHMETICAL problem of reasoning under limited deductive capacity. The second sketches a rigorous way of assigning character of subjective probabilities and beliefs. 1. LIMITED DEDUCTIVE ABILITY Two kinds of obstacles stand

  17. An alternative approach to achieving water quality-based limits

    SciTech Connect (OSTI)

    Hart, C.M.; Graeser, W.C.

    1995-12-01T23:59:59.000Z

    Since May 1982, members of the Iron and Steel Industry have been required to meet effluent limits based on Best Available Technology (BAT) for a process water discharge to receiving stream. US Steel Clairton Works has been successful in meeting these limits in the last three years; however, the current regulatory thrust is toward more stringent limits based on water quality. In cases of smaller streams such as the receiving stream for Clairton Works` process outfall, these limits can be very rigid. This paper will discuss the alternative approaches investigated to meet the new more stringent limits including the solution chosen.

  18. 1Design limits and solutions for very large wind turbines Design limits and solutions for very large wind turbines

    E-Print Network [OSTI]

    Leu, Tzong-Shyng "Jeremy"

    #12;#12;1Design limits and solutions for very large wind turbines UpWind Design limits and solutions for very large wind turbines A 20 MW turbine is feasible March 2011 Supported by: #12;March 20112 Photo:Nordex #12;3Design limits and solutions for very large wind turbines Contents 1. UpWind: Summary

  19. Behaviometrics for Identifying Smart Home Aaron S. Crandall and Diane J. Cook

    E-Print Network [OSTI]

    Cook, Diane J.

    Smart homes and ambient intelligence show great promise in the fields of medical monitoring, energy to identify the residents through behavior, the smart home may better react to the multitude of inhabitants, though energy efficiency has a strong future in reducing our home's economic and ecological footprint

  20. Onions, Garlic and Shallots Diane Relf, Extension Specialist, Horticulture, Virginia Tech

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    before planting. Use starter solution for transplants. Sidedress one to two weeks after bulb enlargement longer in storage. Onion varieties also have differ- entrequirementsastothenumberof hours of daylight hours of daylight and are used in the deep South for winter production. This explainswhy

  1. O2-06-02 FDG METABOLISM IN THE DIAN STUDY OF AUTOSOMAL DOMINANT ALZHEIMER'S

    E-Print Network [OSTI]

    Thompson, Paul

    Saykin6, Stephen Correia7, Peter Schofield8, Christopher Rowe9, Nick Fox10, Adam Brickman11, Bernardino Ringman5, Stephen Salloway15, John Morris4, Reisa Sperling16, Keith Johnson17, 1Massachusetts General Saykin6, Stephen Correia7, Peter Schofield8, Christopher Rowe9, Nick Fox10, Adam Brickman11, Bernardino

  2. Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl

    E-Print Network [OSTI]

    and Peer Evaluation Meetings (AMR) for the Hydrogen and Fuel Cells Program and the Vehicle Technologies of Hydrogen Fuel Cell Vehicle Technology and Prospects for the Future" P.T. Jones ­ "Dynamic Wireless Power-Board Storage Pressure for Hydrogen Fuel Cell Vehicles" Poster Presentations: Stacy Davis ­ "Transportation

  3. Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl

    E-Print Network [OSTI]

    Annual Merit Review Meeting The U.S. Department of Energy's (DOE's) 2013 Annual Merit Review and Peer will be held on May 13­17, 2013, in Arlington, Virginia. At the DOE Vehicle Technologies Annual Merit Review

  4. Controversies: Legal and Political Battles over Hazardous Waste in Central Researcher: Diane Sicotte

    E-Print Network [OSTI]

    Hall, Sharon J.

    much a smelter town. Children's playground in Hayden lies directly up against the plant and smelter if the permits are adequate. Hayden, Arizona Class-Action Lawsuit Against a Copper Mining Corporation 1. Company Town: Hayden developed as a smelter town in 1911, when the first smelter was built. Initially a mining

  5. Conditions for diffusion-limited and reaction-limited recombination in nanostructured solar cells

    SciTech Connect (OSTI)

    Ansari-Rad, Mehdi, E-mail: ansari.rad@ut.ac.ir [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of) [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of); Department of Physics, University of Shahrood, Shahrood (Iran, Islamic Republic of); Anta, Juan A., E-mail: anta@upo.es [Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Sevilla (Spain); Arzi, Ezatollah [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of)] [Department of Physics, University of Tehran, 1439955961 Tehran (Iran, Islamic Republic of)

    2014-04-07T23:59:59.000Z

    The performance of Dye-sensitized solar cells (DSC) and related devices made of nanostructured semiconductors relies on a good charge separation, which in turn is achieved by favoring charge transport against recombination. Although both processes occur at very different time scales, hence ensuring good charge separation, in certain cases the kinetics of transport and recombination can be connected, either in a direct or an indirect way. In this work, the connection between electron transport and recombination in nanostructured solar cells is studied both theoretically and by Monte Carlo simulation. Calculations using the Multiple-Trapping model and a realistic trap distribution for nanostructured TiO{sub 2} show that for attempt-to-jump frequencies higher than 10{sup 11}–10{sup 13} Hz, the system adopts a reaction limited (RL) regime, with a lifetime which is effectively independent from the speed of the electrons in the transport level. For frequencies lower than those, and depending on the concentration of recombination centers in the material, the system enters a diffusion-limited regime (DL), where the lifetime increases if the speed of free electrons decreases. In general, the conditions for RL or DL recombination depend critically on the time scale difference between recombination kinetics and free-electron transport. Hence, if the former is too rapid with respect to the latter, the system is in the DL regime and total thermalization of carriers is not possible. In the opposite situation, a RL regime arises. Numerical data available in the literature, and the behavior of the lifetime with respect to (1) density of recombination centers and (2) probability of recombination at a given center, suggest that a typical DSC in operation stays in the RL regime with complete thermalization, although a transition to the DL regime may occur for electrolytes or hole conductors where recombination is especially rapid or where there is a larger dispersion of energies of electron acceptors.

  6. On the no-gravity limit of gravity

    E-Print Network [OSTI]

    J. Kowalski-Glikman; M. Szczachor

    2012-12-21T23:59:59.000Z

    We argue that Relative Locality may arise in the no gravity $G\\rightarrow0$ limit of gravity. In this limit gravity becomes a topological field theory of the BF type that, after coupling to particles, may effectively deform its dynamics. We briefly discuss another no gravity limit with a self dual ground state as well as the topological ultra strong $G\\rightarrow\\infty$ one.

  7. Institute of Computer Science A modified limited-memory BNS ...

    E-Print Network [OSTI]

    2014-03-12T23:59:59.000Z

    Institute of Computer Science. Academy of Sciences of the Czech Republic. A modified limited-memory BNS method for unconstrained minimization based on ...

  8. antibodies successes limitations: Topics by E-print Network

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

    the effects of harmonics on their systems: telephone noise, excessive heating of transformers and other equipment, capacitor damage, and others, and would like to limit the...

  9. Exact algorithms for the Traveling Salesman Problem with Draft Limits

    E-Print Network [OSTI]

    Maria Battarra

    2013-02-25T23:59:59.000Z

    Feb 25, 2013 ... In this recently proposed problem, draft limits are imposed due to restrictions on the port infrastructures. Exact algorithms based on three ...

  10. Resource Limits and Conversion Efficiency with Implications for Climate Change

    E-Print Network [OSTI]

    Croft, Gregory Donald

    2009-01-01T23:59:59.000Z

    in resource limits declined with oil prices after 1985, butthe surge in oil prices since 1999 has elevated Hubbertfavored. Along with higher oil prices has come a discussion

  11. LUCERNE FOODS LTD. (A Division of Canada Safeway Limited)

    E-Print Network [OSTI]

    Farrell, Anthony P.

    LUCERNE FOODS LTD. (A Division of Canada Safeway Limited) Processing Plant: 31122 South Fraser Way and Vegetable Processing Plant Location: Abbotsford, BC Job Description: Lucerne Foods, Clearbrook processing

  12. Critical Issues in NPH Categorization and Limit State Selection...

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

    and the public. This step also includes defining what constitutes failure (e.g., for seismic design, determination of a Limit State associated with SSC failure) * Step 2:...

  13. WAC - 173 - 221 - Discharge Standards and Effluent Limitations...

    Open Energy Info (EERE)

    WAC - 173 - 221 - Discharge Standards and Effluent Limitations for Domestic Wastewater Facilities Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document-...

  14. Articulated limiter blade for a tokamak fusion reactor

    DOE Patents [OSTI]

    Doll, D.W.

    1982-10-21T23:59:59.000Z

    A limiter blade for a large tokomak fusion reactor includes three articulated blade sections for enabling the limiter blade to be adjusted for plasmas of different sizes. Each blade section is formed of a rigid backing plate carrying graphite tiles coated with titanium carbide, and the limiter blade forms a generally elliptic contour in both the poloidal and toroidal directions to uniformly distribute the heat flow to the blade. The limiter blade includes a central blade section movable along the major radius of the vacuum vessel, and upper and lower pivotal blade sections which may be pivoted by linear actuators having rollers held to the back surface of the pivotal blade sections.

  15. Notice of Emergency Action - Emergency Order To Resume Limited...

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

    Emergency Action - Emergency Order To Resume Limited Operation at the Potomac River Generating Station, Alexandria, VA, in Response to Electricity Reliability Concerns in...

  16. COLD BUBBLE FORMATION DURING TOKAMAK DENSITY LIMIT DISRUPTIONS

    E-Print Network [OSTI]

    Howard, John

    COLD BUBBLE FORMATION DURING TOKAMAK DENSITY LIMIT DISRUPTIONS J. HOWARD, M. PERSSON* Plasma Research Laboratory, Research School of Physical Sciences, Australian National University, Canberra

  17. aos seus limites: Topics by E-print Network

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

    performance via correction of atmospheric turbulence using adaptive optics (AO), to seeing-limited observations. Moreover, the scientific output of the...

  18. aos limites prescritos: Topics by E-print Network

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

    performance via correction of atmospheric turbulence using adaptive optics (AO), to seeing-limited observations. Moreover, the scientific output of the...

  19. Date____________ STUDENT REQUEST FOR EVALUATION BY FACULTY

    E-Print Network [OSTI]

    Loudon, Catherine

    to Undergraduate Advisor ­ Diane Diefenderfer Final Decision ___________________________________ #12;

  20. Cultural Socialization Process of Effective Educators of Students of Color in an Elementary School District

    E-Print Network [OSTI]

    Henry, Patricia May

    2009-05-15T23:59:59.000Z

    ........................................ 99 Craig?s Story: Broadening Horizons ........................................... 108 Diane?s Story: Respecting Everyone........................................... 115 Rachel?s Story: Protecting Students... ....................................................... 136 Chinere?s Cultural Socialization ................................................. 139 Craig?s Cultural Socialization ..................................................... 142 Diane?s Cultural Socialization...

  1. BIOMASS FOR HYDROGEN AND OTHER TRANSPORT FUELS -POTENTIALS, LIMITATIONS & COSTS

    E-Print Network [OSTI]

    BIOMASS FOR HYDROGEN AND OTHER TRANSPORT FUELS - POTENTIALS, LIMITATIONS & COSTS Senior scientist - "Towards Hydrogen Society" ·biomass resources - potentials, limits ·biomass carbon cycle ·biomass for hydrogen - as compared to other H2- sources and to other biomass paths #12;BIOMASS - THE CARBON CYCLE

  2. Climatic change special issue: geoengineering research and its limitations

    E-Print Network [OSTI]

    Wood, Robert

    Climatic change special issue: geoengineering research and its limitations Robert Wood & Stephen, discussion of "geoengineering"--roughly the "deliberate large-scale manip- ulation of the planetary. Proposed geoengineering approaches fall into two broad categories: those that attempt to limit solar

  3. Scaling limits for gradient systems in random environment

    E-Print Network [OSTI]

    P. Goncalves; M. D. Jara

    2007-02-17T23:59:59.000Z

    For interacting particle systems that satisfies the gradient condition, the hydrodynamic limit and the equilibrium fluctuations are well known. We prove that under the presence of a symmetric random environment, these scaling limits also hold for almost every choice of the environment, with homogenized coefficients that does not depend on the particular realization of the random environment.

  4. Broadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter

    E-Print Network [OSTI]

    Ulukus, Sennur

    ) at the transmitter at random instants. The battery at the transmitter has a finite storage capacity, hence energy mayBroadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter Omur Ozel1 , Jing with a battery limited energy harvesting trans- mitter in a two-user AWGN broadcast channel. The transmitter has

  5. Asymptotic Behavior and Distributional Limits of Preferential Attachment Graphs

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    , Christian Borgs, Jennifer T. Chayes and Amin Saberi Mathematics Department, Hebrew University, Jerusalem Alto, CA 94305. e-mail: saberi@stanford August 2009 (revised August 2010) Abstract: We give an explicit;Berger, Borgs, Chayes, Saberi /Preferential attachment limits 2 Earlier, a notion of a weak local limit

  6. Fundamental limit of nanophotonic light trapping in solar cells

    E-Print Network [OSTI]

    Fan, Shanhui

    Fundamental limit of nanophotonic light trapping in solar cells Zongfu Yu1 , Aaswath Raman and is becoming increasingly urgent for current solar cell research. The standard theory of light trapping) Establishing the fundamental limit of nanophotonic light-trapping schemes is of paramount importance

  7. LINEARIZED PLASTICITY IS THE EVOLUTIONARY -LIMIT OF FINITE PLASTICITY

    E-Print Network [OSTI]

    Stefanelli, Ulisse

    LINEARIZED PLASTICITY IS THE EVOLUTIONARY -LIMIT OF FINITE PLASTICITY ALEXANDER MIELKE AND ULISSE in plasticity. By taking the small-deformations limit, we prove via -convergence for rate-independent processes plastic evolution by means of a deli- cate recovery sequence construction relating energy and dissipation

  8. Personalized Dynamic Pricing of Limited Inventories Goker Aydin* Serhan Ziya**

    E-Print Network [OSTI]

    Ziya, Serhan

    Personalized Dynamic Pricing of Limited Inventories Goker Aydin* Serhan Ziya** *Department@unc.edu Abstract Prior work has investigated time and inventory-level dependent pricing of limited inventories with finite selling horizons. We consider a third dimension - in addition to time and inventory level

  9. EFFECT OF REACTOR HEAT TRANSFER LIMITATIONS ON CO PREFERENTIAL OXIDATION

    E-Print Network [OSTI]

    Besser, Ronald S.

    and conventional packed-bed lab reactors (m-PBR's). Strong evidence has suggested that the reverse water-gas transport limitations of conventional lab reactors [3,4,5,6]: the fast surface chemistry of the exothermic1 EFFECT OF REACTOR HEAT TRANSFER LIMITATIONS ON CO PREFERENTIAL OXIDATION X. Ouyang, R.S. Besser

  10. On the ChapmanJouguet Limit for a Combustion Model

    E-Print Network [OSTI]

    On the Chapman­Jouguet Limit for a Combustion Model Bernard Hanouzet \\Lambda , Roberto Natalini y and Alberto Tesei z Abstract We study the limiting behaviour of solutions to a simple model for combustion detonations and deflagrations with respect to the reaction rate. Key words and phrases: combustion

  11. Quantum Limits and Robustness of Nonlinear Intracavity Absorption Spectroscopy

    E-Print Network [OSTI]

    John K. Stockton; Ari K. Tuchman

    2008-10-23T23:59:59.000Z

    We investigate the limits of intracavity absorption spectroscopy with nonlinear media. Using a common theoretical framework, we compare the detection of a trace gas within an undriven cavity with gain near and above threshold, a driven cavity with gain kept just below threshold, and a cavity driven close to the saturation point of a saturable absorber. These phase-transition-based metrology methods are typically quantum-limited by spontaneous emission, and we compare them to the empty cavity shotnoise-limited case. Although the fundamental limits achievable with nonlinear media do not surpass the empty cavity limits, we show that nonlinear methods are more robust against certain technical noise models. This recognition may have applications in spectrometer design for devices operating in non-ideal field environments.

  12. Effective constrained polymeric theories and their continuum limit

    E-Print Network [OSTI]

    Alejandro Corichi; Tatjana Vukasinac

    2012-08-02T23:59:59.000Z

    The classical limit of polymer quantum theories yields a one parameter family of `effective' theories labeled by \\lambda. Here we consider such families for constrained theories and pose the problem of taking the `continuum limit', \\lambda -> 0. We put forward criteria for such question to be well posed, and propose a concrete strategy based in the definition of appropriately constructed Dirac observables. We analyze two models in detail, namely a constrained oscillator and a cosmological model arising from loop quantum cosmology. For both these models we show that the program can indeed be completed, provided one makes a particular choice of \\lambda-dependent internal time with respect to which the dynamics is described and compared. We show that the limiting theories exist and discuss the corresponding limit. These results might shed some light in the problem of defining a renormalization group approach, and its associated continuum limit, for quantum constrained systems.

  13. Thermomechanical aspects of the liquid metal cooled limiter

    SciTech Connect (OSTI)

    Majid, A.; Abdou, M.A.

    1989-03-01T23:59:59.000Z

    Analysis has been performed to evaluate the possibility of using liquid lithium as a coolant for the limiter. A global analysis was carried out to determine limiter's shape and configuration, and then detailed MHD, heat transfer, and structural analysis, were performed to determine limiting coolant velocities, operating pressures, Nusselt number, and allowable heat fluxes. For one of the most suitable choices of materials i.e. vanadium structure, lithium coolant, and Be coating (10 mm), the limiting heat flux has been found to be 2.5 MW/m/sup 2/. For High, Z coating of tungsten the limiting heat flux has been found to be 5.7 MW/m/sup 2/. In both cases the operating pressure was maintained at 10 MPa.

  14. No Evidence for an Item Limit in Change Detection

    E-Print Network [OSTI]

    Keshvari, Shaiyan Oliver

    Change detection is a classic paradigm that has been used for decades to argue that working memory can hold no more than a fixed number of items (“item-limit models”). Recent findings force us to consider the alternative ...

  15. makeitsafe.missouri.edu Limit your personal data. Protect your

    E-Print Network [OSTI]

    Taylor, Jerry

    1 2 3 4 makeitsafe.missouri.edu Limit your personal data. Protect your identity and only post on your permissions, you could display personal information to people you don't really know. Change

  16. The Shockley-Queisser limit for nanostructured solar cells

    E-Print Network [OSTI]

    Xu, Yunlu; Munday, Jeremy N

    2014-01-01T23:59:59.000Z

    The Shockley-Queisser limit describes the maximum solar energy conversion efficiency achievable for a particular material and is the standard by which new photovoltaic technologies are compared. This limit is based on the principle of detailed balance, which equates the photon flux into a device to the particle flux (photons or electrons) out of that device. Nanostructured solar cells represent a new class of photovoltaic devices, and questions have been raised about whether or not they can exceed the Shockley-Queisser limit. Here we show that single-junction nanostructured solar cells have a theoretical maximum efficiency of 42% under AM 1.5 solar illumination. While this exceeds the efficiency of a non- concentrating planar device, it does not exceed the Shockley-Queisser limit for a planar device with optical concentration. We conclude that nanostructured solar cells offer an important route towards higher efficiency photovoltaic devices through a built-in optical concentration.

  17. The large level limit of Kazama-Suzuki models

    E-Print Network [OSTI]

    Stefan Fredenhagen; Cosimo Restuccia

    2014-08-02T23:59:59.000Z

    Limits of families of conformal field theories are of interest in the context of AdS/CFT dualities. We explore here the large level limit of the two-dimensional N=(2,2) superconformal W_{n+1} minimal models that appear in the context of the supersymmetric higher-spin AdS3/CFT2 duality. These models are constructed as Kazama-Suzuki coset models of the form SU(n+1)/U(n). We determine a family of boundary conditions in the limit theories, and use the modular bootstrap to obtain the full bulk spectrum of N=2 super-W_{n+1} primaries in the theory. We also confirm the identification of this limit theory as the continuous orbifold C^n/U(n) that was discussed recently.

  18. anomalous coupling limits: Topics by E-print Network

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

    the WWZ couplings. D0 Collaboration 1999-05-04 4 Limits on Anomalous Couplings from Higgs Boson Production at the Tevatron HEP - Phenomenology (arXiv) Summary: We estimate the...

  19. Radial limits of holomorphic functions on the ball

    E-Print Network [OSTI]

    Fulkerson, Michael C

    2008-10-10T23:59:59.000Z

    In this dissertation, we consider various aspects of the boundary behavior of holomorphic functions of several complex variables. In dimension one, a characterization of the radial limit zero sets of nonconstant holomorphic functions on the disc has...

  20. Exact algorithms for the Traveling Salesman Problem with Draft Limits

    E-Print Network [OSTI]

    2013-02-20T23:59:59.000Z

    Feb 20, 2013 ... problem, draft limits are imposed due to restrictions on the port in- ... the sea-level in a port is sometimes not sufficiently deep to accommodate.

  1. Low temperature plasma near a tokamak reactor limiter

    SciTech Connect (OSTI)

    Braams, B.J.; Singer, C.E.

    1985-01-01T23:59:59.000Z

    Analytic and two-dimensional computational solutions for the plasma parameters near a toroidally symmetric limiter are illustrated for the projected parameters of a Tokamak Fusion Core Experiment (TFCX). The temperature near the limiter plate is below 20 eV, except when the density 10 cm inside the limiter contact is 8 x 10/sup 13/cm/sup -3/ or less and the thermal diffusivity in the edge region is 2 x 10/sup 4/cm/sup 2//s or less. Extrapolation of recent experimental data suggests that neither of these conditions is likely to be met near ignition in TFCX, so a low plasma temperature near the limiter should be considered a likely possibility.

  2. An experimental investigation of the countercurrent flow limitation

    E-Print Network [OSTI]

    Solmos, Matthew Aaron

    2008-10-10T23:59:59.000Z

    A new correlation for the prediction of the Countercurrent Flow Limitation (CCFL) in a large diameter tube with a falling water lm is proposed. Dierent from previous correlations, it predicts the onset of ooding by considering the relative...

  3. Reservoir Characterization with Limited Sample Data using Geostatistics

    E-Print Network [OSTI]

    Ghoraishy, Sayyed Mojtaba

    2008-01-01T23:59:59.000Z

    The primary objective of this dissertation was to develop a systematic method to characterize the reservoir with the limited available data. The motivation behind the study was characterization of CO2 pilot area in the Hall Gurney Field, Lansing...

  4. Iron limitation and the role of Siderophores in marine Synechococcus

    E-Print Network [OSTI]

    Rivers, Adam R. (Adam Reid)

    2009-01-01T23:59:59.000Z

    Marine cyanobacteria in the genus Synechococcus are widely distributed and contribute significantly to global primary productivity. In many parts of the ocean their growth is limited by a lack of iron, an essential nutrient ...

  5. Limited development as a tool for agricultural preservation in Massachusetts

    E-Print Network [OSTI]

    Tuttle, William D. (William Davis)

    1988-01-01T23:59:59.000Z

    Limited development offers the hope of turning market development pressure which threatens open land into a means for financing its protection. In theory, the profit from developing a small portion of a parcel can be used ...

  6. Radionuclide limits for vault disposal at the Savannah River Site

    SciTech Connect (OSTI)

    Cook, J.R.

    1992-02-04T23:59:59.000Z

    The Savannah River Site is developing a facility called the E-Area Vaults which will serve as the new radioactive waste disposal facility beginning early in 1992. The facility will employ engineered below-grade concrete vaults for disposal and above-grade storage for certain long-lived mobile radionuclides. This report documents the determination of interim upper limits for radionuclide inventories and concentrations which should be allowed in the disposal structures. The work presented here will aid in the development of both waste acceptance criteria and operating limits for the E-Area Vaults. Disposal limits for forty isotopes which comprise the SRS waste streams were determined. The limits are based on total facility and vault inventories for those radionuclides which impact groundwater, and or waste package concentrations for those radionuclides which could affect intruders.

  7. Beyond Dominant Resource Fairness: Extensions, Limitations, and Indivisibilities

    E-Print Network [OSTI]

    Fiat, Amos

    Beyond Dominant Resource Fairness: Extensions, Limitations, and Indivisibilities DAVID C. PARKES We study the problem of allocating multiple resources to agents with heterogeneous demands this problem under the assumption that agents demand the resources in fixed proportions, known in economics

  8. Fundamentals of PV Efficiency: Limits for Light Absorption

    E-Print Network [OSTI]

    M. Ryyan Khan; Xufeng Wang; Muhammad A. Alam

    2012-12-13T23:59:59.000Z

    A simple thermodynamic argument related to a (weakly absorbing) finite dielectric slab illuminated by sunlight- originally suggested by Yablonovich- leads to the conclusion that the absorption in a dielectric can at best be increased by a factor 4n2. Therefore, the absorption in these materials is always imperfect; the Shockley-Queisser limit can be achieved only asymptotically. In this paper, we make the connection between the degradation in efficiency and the Yablonovich limit explicit and re-derive the 4n2 limit by intuitive geometrical arguments based on Snell's law and elementary rules of probability. Remarkably, the re-derivation suggests strategies of breaking the traditional limit and improving PV efficiency by enhanced light absorption.

  9. On the limiting absorption principle and spectra of quantum graphs

    E-Print Network [OSTI]

    Beng-Seong Ong

    2005-10-10T23:59:59.000Z

    The main result of the article is validity of the limiting absorption principle and thus absence of the singular continuous spectrum for compact quantum graphs with several infinite leads attached. The technique used involves Dirichlet-to-Neumann operators.

  10. SHOCK EMERGENCE IN SUPERNOVAE: LIMITING CASES AND ACCURATE APPROXIMATIONS

    SciTech Connect (OSTI)

    Ro, Stephen; Matzner, Christopher D. [Department of Astronomy and Astrophysics, University of Toronto, 50 St. George St., Toronto, ON M5S 3H4 (Canada)

    2013-08-10T23:59:59.000Z

    We examine the dynamics of accelerating normal shocks in stratified planar atmospheres, providing accurate fitting formulae for the scaling index relating shock velocity to the initial density and for the post-shock acceleration factor as functions of the polytropic and adiabatic indices which parameterize the problem. In the limit of a uniform initial atmosphere, there are analytical formulae for these quantities. In the opposite limit of a very steep density gradient, the solutions match the outcome of shock acceleration in exponential atmospheres.

  11. Thermodynamic Limits, Non-commutative Probability, and Quantum Entanglement

    E-Print Network [OSTI]

    Joseph F. Johnson

    2005-07-02T23:59:59.000Z

    We construct a rigourous model of quantum measurement. A two-state model of a negative temperature amplifier, such as a laser, is taken to a classical thermodynamic limit. In the limit, it becomes a classical measurement apparatus obeying the stochastic axioms of quantum mechanics. Thus we derive the probabilities from a deterministic Schroedinger's equation by procedures analogous to those of classical statistical mechanics. This requires making precise the notion of `macroscopic.'

  12. Infrared cutoffs and the adiabatic limit in noncommutative spacetime

    E-Print Network [OSTI]

    Claus Doescher; Jochen Zahn

    2005-12-02T23:59:59.000Z

    We discuss appropriate infrared cutoffs and their adiabatic limit for field theories on the noncommutative Minkowski space in the Yang-Feldman formalism. In order to do this, we consider a mass term as interaction term. We show that an infrared cutoff can be defined quite analogously to the commutative case and that the adiabatic limit of the two-point function exists and coincides with the expectation, to all orders.

  13. Operational benefits of relaxed axial power distribution control limits

    SciTech Connect (OSTI)

    Kitlan, M.S. Jr.; Miller, R.W.

    1987-01-01T23:59:59.000Z

    Constant axial offset control (CAOC) was developed in the early 1970s in response to lower loss-of-coolant accident-based peaking factor limits. Th CAOC requires control of the axial power distribution within a specified band, typically +/- 5% or +3, -12% axial flux difference (AFD), about a measured target value of AFD. Operational outside of the CAOC limits results in the accumulation of penalty time. One hour of penalty time in any 24-h period is permitted. Although CAOC is sufficient to ensure peaking factor limits are satisfied, operation outside of CAOC limits is beneficial under certain conditions. Allowing a relaxation in CAOC restrictions can be used both to enhance the load follow capability of the plant by allowing control strategies that minimize the boron system duty or increase the return to power capability and to greatly increase the ability to return to power after a plant trip or shutdown. To achieve these benefits, relaxed axial offset control (RAOC) was developed. Other benefits of RAOC include a simplified technical specification and the ability to perform in-core/ex-core calibrations at higher powers. Duke Power Company has benefited in many of these ways by changing from CAOC power distribution limits to RAOC power distribution limits at the McGuire Nuclear Station. One of the chief benefits has been the ability to achieve full power much more quickly following shutdowns of short duration and reactor trips during the last half of the cycle lifetime.

  14. Operating limit evaluation for disposal of uranium enrichment plant wastes

    SciTech Connect (OSTI)

    Lee, D.W.; Kocher, D.C.; Wang, J.C.

    1996-02-01T23:59:59.000Z

    A proposed solid waste landfill at Paducah Gaseous Diffusion Plant (PGDP) will accept wastes generated during normal plant operations that are considered to be non-radioactive. However, nearly all solid waste from any source or facility contains small amounts of radioactive material, due to the presence in most materials of trace quantities of such naturally occurring radionuclides as uranium and thorium. This paper describes an evaluation of operating limits, which are protective of public health and the environment, that would allow waste materials containing small amounts of radioactive material to be sent to a new solid waste landfill at PGDP. The operating limits are expressed as limits on concentrations of radionuclides in waste materials that could be sent to the landfill based on a site-specific analysis of the performance of the facility. These limits are advantageous to PGDP and DOE for several reasons. Most importantly, substantial cost savings in the management of waste is achieved. In addition, certain liabilities that could result from shipment of wastes to a commercial off-site solid waste landfill are avoided. Finally, assurance that disposal operations at the PGDP landfill are protective of public health and the environment is provided by establishing verifiable operating limits for small amounts of radioactive material; rather than relying solely on administrative controls. The operating limit determined in this study has been presented to the Commonwealth of Kentucky and accepted as a condition to be attached to the operating permit for the solid waste landfill.

  15. Hydraulic limitation not declining nitrogen availability causes the age-related photosynthetic decline in loblolly

    E-Print Network [OSTI]

    DeLucia, Evan H.

    Hydraulic limitation not declining nitrogen availability causes the age-related photosynthetic capacity and thus decreases GPP with increasing age; and (2) hydraulic limitations increasingly induce conservative with age. We conclude that hydraulic limitation increasingly limits the photosyn- thetic rates

  16. ARM: Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

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

    Hodges, Gary; Stoffel, Tom; Kutchenreiter, Mark; Kay, Bev; Habte, Aron; Ritsche, Michael; Morris, Victor; Anderberg, Mary

    Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

  17. The Ginibre evolution in the large-N limit

    SciTech Connect (OSTI)

    Tribe, Roger, E-mail: tribe@maths.warwick.ac.uk; Zaboronski, Oleg, E-mail: olegz@maths.warwick.ac.uk [Department of Mathematics, University of Warwick, Coventry CV4 7AL (United Kingdom)

    2014-06-15T23:59:59.000Z

    We analyse statistics of the real eigenvalues of gl(N, R)-valued Brownian motion (the Ginibre evolution) in the limit of large N. In particular, we calculate the limiting two-time correlation function of spin variables associated with real eigenvalues of the Ginibre evolution. We also show how the formalism of spin variables can be used to compute the fixed time correlation functions of real eigenvalues discovered originally by Forrester and Nagao [“Eigenvalue statistics of the real Ginibre ensemble,” Phys. Rev. Lett. 99(5), 050603 (2007)] and Borodin and Sinclair [“The Ginibre ensemble of real random matrices and its scaling limits,” Commun. Math. Phys. 291(1), 177–224 (2009)].

  18. More on the renormalization group limit cycle in QCD

    SciTech Connect (OSTI)

    Evgeny Epelbaum; Hans-Werner Hammer; Ulf-G. Meissner; Andreas Nogga

    2006-02-26T23:59:59.000Z

    We present a detailed study of the recently conjectured infrared renormalization group limit cycle in QCD using chiral effective field theory. We show that small increases in the up and down quark masses, corresponding to a pion mass around 200 MeV, can move QCD to the critical renormalization group trajectory for an infrared limit cycle in the three-nucleon system. At the critical values of the quark masses, the binding energies of the deuteron and its spin-singlet partner are tuned to zero and the triton has infinitely many excited states with an accumulation point at the three-nucleon threshold. At next-to-leading order in the chiral counting, we find three parameter sets where this effect occurs. For one of them, we study the structure of the three-nucleon system using both chiral and contact effective field theories in detail. Furthermore, we calculate the influence of the limit cycle on scattering observables.

  19. Quantum Limit on Stability of Clocks in a Gravitational Field

    E-Print Network [OSTI]

    Supurna Sinha; Joseph Samuel

    2014-03-21T23:59:59.000Z

    Good clocks are of importance both to fundamental physics and for applications in astronomy, metrology and global positioning systems. In a recent technological breakthrough, researchers at NIST have been able to achieve a stability of 1 part in $10^{18}$ using an Ytterbium clock. This naturally raises the question of whether there are fundamental limits to the stability of clocks. In this paper we point out that gravity and quantum mechanics set a fundamental limit on the stability of clocks. This limit comes from a combination of the uncertainty relation, the gravitational redshift and the relativistic time dilation effect. For example, a single ion hydrogen maser clock in a terrestrial gravitational field cannot achieve a stability better than one part in $10^{22}$. This observation has implications for laboratory experiments involving both gravity and quantum theory.

  20. Optical limiting of layered transition metal dichalcogenide semiconductors

    E-Print Network [OSTI]

    Dong, Ningning; Feng, Yanyan; Zhang, Saifeng; Zhang, Xiaoyan; Chang, Chunxia; Fan, Jintai; Zhang, Long; Wang, Jun

    2015-01-01T23:59:59.000Z

    Nonlinear optical property of transition metal dichalcogenide (TMDC) nanosheet dispersions, including MoS2, MoSe2, WS2, and WSe2, was performed by using Z-scan technique with ns pulsed laser at 1064 nm and 532 nm. The results demonstrate that the TMDC dispersions exhibit significant optical limiting response at 1064 nm due to nonlinear scattering, in contrast to the combined effect of both saturable absorption and nonlinear scattering at 532 nm. Selenium compounds show better optical limiting performance than that of the sulfides in the near infrared. A liquid dispersion system based theoretical modelling is proposed to estimate the number density of the nanosheet dispersions, the relationship between incident laser fluence and the size of the laser generated micro-bubbles, and hence the Mie scattering-induced broadband optical limiting behavior in the TMDC dispersions.

  1. Testing of Liquid Lithium Limiters in CDX-U

    SciTech Connect (OSTI)

    R. Majeski; R. Kaita; M. Boaz; P. Efthimion; T. Gray; B. Jones; D. Hoffman; H. Kugel; J. Menard; T. Munsat; A. Post-Zwicker; V. Soukhanovskii; J. Spaleta; G. Taylor; J. Timberlake; R. Woolley; L. Zakharov; M. Finkenthal; D. Stutman; G. Antar; R. Doerner; S. Luckhardt; R. Seraydarian; R. Maingi; M. Maiorano; S. Smith; D. Rodgers

    2004-07-30T23:59:59.000Z

    Part of the development of liquid metals as a first wall or divertor for reactor applications must involve the investigation of plasma-liquid metal interactions in a functioning tokamak. Most of the interest in liquid-metal walls has focused on lithium. Experiments with lithium limiters have now been conducted in the Current Drive Experiment-Upgrade (CDX-U) device at the Princeton Plasma Physics Laboratory. Initial experiments used a liquid-lithium rail limiter (L3) built by the University of California at San Diego. Spectroscopic measurements showed some reduction of impurities in CDX-U plasmas with the L3, compared to discharges with a boron carbide limiter. While no reduction in recycling was observed with the L3, which had a plasma-wet area of approximately 40 cm2, subsequent experiments with a larger area fully toroidal lithium limiter demonstrated significant reductions in both recycling and in impurity levels. Two series of experiments with the toroidal limiter have now be en performed. In each series, the area of exposed, clean lithium was increased, until in the latest experiments the liquid-lithium plasma-facing area was increased to 2000 cm2. Under these conditions, the reduction in recycling required a factor of eight increase in gas fueling in order to maintain the plasma density. The loop voltage required to sustain the plasma current was reduced from 2 V to 0.5 V. This paper summarizes the technical preparations for lithium experiments and the conditioning required to prepare the lithium surface for plasma operations. The mechanical response of the liquid metal to induced currents, especially through contact with the plasma, is discussed. The effect of the lithium-filled toroidal limiter on plasma performance is also briefly described.

  2. MTBE growth limited despite lead phasedown in gasoline

    SciTech Connect (OSTI)

    Storck, W.

    1985-07-15T23:59:59.000Z

    This month's legislated reduction of the allowable amount of lead additives in gasoline will increase demand strongly for methyl-tert-butyl ether (MTBE) as an octane enhancer, but the economics of the refinery business and the likelihood of rapidly increasing high-octane gasoline imports probably will limit the size of the business in coming years. MTBE will be used to fill the octane gap now, but economics and imports of gasoline later on could hold down demand. The limited growth in sales of MTBE is discussed.

  3. Fractal Dimensions for Continuous Time Random Walk Limits

    E-Print Network [OSTI]

    Mark M. Meerschaert; Erkan Nane; Yimin Xiao

    2011-02-03T23:59:59.000Z

    In a continuous time random walk (CTRW), each random jump follows a random waiting time. CTRW scaling limits are time-changed processes that model anomalous diffusion. The outer process describes particle jumps, and the non-Markovian inner process (or time change) accounts for waiting times between jumps. This paper studies fractal properties of the sample functions of a time-changed process, and establishes some general results on the Hausdorff and packing dimensions of its range and graph. Then those results are applied to CTRW scaling limits.

  4. INVESTIGATION ON THE FLAME EXTINCTION LIMIT OF FUEL BLENDS

    SciTech Connect (OSTI)

    Ahsan R. Choudhuri

    2005-02-01T23:59:59.000Z

    Lean flame extinction limits of binary fuel mixtures of methane (CH{sub 4}), propane (C{sub 3}H{sub 8}), and ethane (C{sub 2}H{sub 6}) were measured using a twin-flame counter-flow burner. Experiments were conducted to generate an extinction equivalence ratio vs. global stretch rate plot and an extrapolation method was used to calculate the equivalence ratio corresponding to an experimentally unattainable zero-stretch condition. The foregoing gases were selected because they are the primary constitutes of natural gas, which is the primary focus of the present study. To validate the experimental setup and methodology, the flame extinction limit of pure fuels at zero stretch conditions were also estimated and compared with published values. The lean flame extinction limits of methane (f{sub ext} = 4.6%) and propane (f{sub ext} = 2.25%) flames measured in the present study agreed with the values reported in the literature. It was observed that the flame extinction limit of fuel blends have a polynomial relation with the concentration of component fuels in the mixture. This behavior contradicts with the commonly used linear Le Chatelier's approximation. The experimentally determined polynomial relations between the flame extinction limits of fuel blends (i.e. methane-propane and methane-ethane) and methane concentration are as follows: (1) Methane-Propane--%f{sub ext} = (1.05 x 10{sup -9}) f{sup 5}-(1.3644 x 10{sup -7}) f{sup 4}+(6.40299 x 10{sup -6}) f{sup 3}-(1.2108459 x 10{sup -4}) f{sup 2}+(2.87305329 x 10{sup -3}) f+2.2483; (2) Methane-Ethane--%f{sub ext} = (2.1 x 10{sup -9})f{sup 5}-(3.5752 x 10{sup -7}) f{sup 4}+(2.095425 x 10{sup -5}) f{sup 3}-(5.037353 x 10{sup -4}) f{sup 2} + 6.08980409 f + 2.8923. Where f{sub ext} is the extinction limits of methane-propane and methane-ethane fuel blends, and f is the concentration (% volume) of methane in the fuel mixture. The relations were obtained by fitting fifth order curve (polynomial regression) to experimentally measured extinction limits at different mixture conditions. To extend the study to a commercial fuel, the flame extinction limit for Birmingham natural gas (a blend of 95% methane, 5% ethane and 5% nitrogen) was experimentally determined and was found to be 3.62% fuel in the air-fuel mixture.

  5. LIMITED POWER BURSTS IN DISTRIBUTED MODELS OF NUCLEAR REACTORS

    E-Print Network [OSTI]

    Bazhenov, Maxim

    LIMITED POWER BURSTS IN DISTRIBUTED MODELS OF NUCLEAR REACTORS M. V. Bazhenov and E. F. Sabaev UDC employed for analyzing reactor dynamics. Equations of this type are used for analyzing the stability of the reactor power, etc. Among these problems the question of the boundedness of reactor power bursts

  6. Fungal endophytes limit pathogen damage in a tropical tree

    E-Print Network [OSTI]

    Bermingham, Eldredge

    Fungal endophytes limit pathogen damage in a tropical tree A. Elizabeth Arnold* , Luis Carlos Meji species examined to date harbors endophytic fungi within its asymptomatic aerial tissues, such that endophytes rep- resent a ubiquitous, yet cryptic, component of terrestrial plant communities. Fungal

  7. Grouping maintenance strategy with availability constraint under limited

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    with significant assumptions: maintenance durations are neglected and only one preventive maintenance for eachGrouping maintenance strategy with availability constraint under limited repairmen Phuc Do Van Hai maintenance strategies of multi-component systems by integrating two efficient optimization algorithms

  8. Recent Liquid Lithium Limiter Experiments in CDX-U

    SciTech Connect (OSTI)

    R. Majeski; S. Jardin; R. Kaita; T. Gray; P. Marfuta; J. Spaleta; J. Timberlake; L. Zakharov; G. Antar; R. Doerner; S. Luckhardt; R. Seraydarian; V. Soukhanovskii; R. Maingi; M. Finkenthal; D. Stutman; D. Rodgers; S. Angelini

    2005-05-03T23:59:59.000Z

    Recent experiments in the Current Drive eXperiment-Upgrade (CDX-U) provide a first-ever test of large area liquid lithium surfaces as a tokamak first wall, to gain engineering experience with a liquid metal first wall, and to investigate whether very low recycling plasma regimes can be accessed with lithium walls. The CDX-U is a compact (R=34 cm, a=22 cm, B{sub toroidal} = 2 kG, I{sub P} =100 kA, T{sub e}(0) {approx} 100 eV, n{sub e}(0) {approx} 5 x 10{sup 19} m{sup -3}) spherical torus at the Princeton Plasma Physics Laboratory. A toroidal liquid lithium pool limiter with an area of 2000 cm{sup 2} (half the total plasma limiting surface) has been installed in CDX-U. Tokamak discharges which used the liquid lithium pool limiter required a fourfold lower loop voltage to sustain the plasma current, and a factor of 5-8 increase in gas fueling to achieve a comparable density, indicating that recycling is strongly reduced. Modeling of the discharges demonstrated that the lithium limited discharges are consistent with Z{sub effective} < 1.2 (compared to 2.4 for the pre-lithium discharges), a broadened current channel, and a 25% increase in the core electron temperature. Spectroscopic measurements indicate that edge oxygen and carbon radiation are strongly reduced.

  9. Liquid Lithium Limiter Experiments in CDX-U

    SciTech Connect (OSTI)

    R. Majeski; S. Jardin; R. Kaita; T. Gray; P. Marfuta; J. Spaleta; J. Timberlake; L. Zakharov; G. Antar; R. Doerner; S. Luckhardt; R. Seraydarian; V. Soukhanovskii; R. Maingi; M. Finkenthal; D. Stutman; D. Rodgers

    2004-10-28T23:59:59.000Z

    Recent experiments in the Current Drive Experiment-Upgrade provide a first-ever test of large area liquid lithium surfaces as a tokamak first wall, to gain engineering experience with a liquid metal first wall, and to investigate whether very low recycling plasma regimes can be accessed with lithium walls. The CDX-U is a compact (R = 34 cm, a = 22 cm, B{sub toroidal} = 2 kG, I{sub P} = 100 kA, T{sub e}(0) = 100 eV, n{sub e}(0) {approx} 5 x 10{sup 19} m{sup -3}) spherical torus at the Princeton Plasma Physics Laboratory. A toroidal liquid lithium tray limiter with an area of 2000 cm{sup 2} (half the total plasma limiting surface) has been installed in CDX-U. Tokamak discharges which used the liquid lithium limiter required a fourfold lower loop voltage to sustain the plasma current, and a factor of 5-8 increase in gas fueling to achieve a comparable density, indicating that recycling is strongly reduced. Modeling of the discharges demonstrated that the lithium-limited discharges are consistent with Z{sub effective} < 1.2 (compared to 2.4 for the pre-lithium discharges), a broadened current channel, and a 25% increase in the core electron temperature. Spectroscopic measurements indicate that edge oxygen and carbon radiation are strongly reduced.

  10. PRESENT LIMITATIONS OF CdTe DETECTORS IN NUCLEAR MEDICINE

    E-Print Network [OSTI]

    Boyer, Edmond

    365 PRESENT LIMITATIONS OF CdTe DETECTORS IN NUCLEAR MEDICINE R. ALLEMAND, P. BOUTEILLER, M. LAVAL quality criteria, it is necessary to compare Cd-Te detectors results (or estimated characteristics) with other methods (i. e. 8cintillation cameras) in order to know the effective interest of Cd-Te in nuclear

  11. Solar panels are cost intensive, have limitations with respect to

    E-Print Network [OSTI]

    Langendoen, Koen

    advantage of being able to convert sunlight into clean energy. After the glass is coated, we install clean electricity. Advantages · Building-integratable. · Contributes to EU targets towards energySolar panels are cost intensive, have limitations with respect to where they can be integrated

  12. Polarization limits in K-Rb spin-exchange mixtures

    SciTech Connect (OSTI)

    Lancor, B.; Walker, T. G. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

    2011-06-15T23:59:59.000Z

    We present measurements of the optical absorption of K vapor at 795 nm due to the presence of high-pressure He gas. The results set a limit on the polarization attainable in hybrid spin-exchange optical pumping of {sup 3}He.

  13. Radiative transport limit for the random Schrodinger Guillaume Bal

    E-Print Network [OSTI]

    Papanicolaou, George C.

    Radiative transport limit for the random Schr¨odinger equation Guillaume Bal George Papanicolaou converges to the solution of a radiative transport equation. The propagation of wave energy in a scattering Leonid Ryzhik May 8, 2002 Abstract We give a detailed mathematical analysis of the radiative transport

  14. Radiative transport limit for the random Schrödinger equation

    E-Print Network [OSTI]

    Guillaume Bal; George Papanicolaou; Leonid Ryzhik

    2001-08-14T23:59:59.000Z

    We give a detailed mathematical analysis of the radiative transport limit for the average phase space density of solutions of the Schroedinger equation with time dependent random potential. Our derivation is based on the construction of an approximate martingale for the random Wigner distribution.

  15. Advantages and Limitations of the RICH Technique for Particle Identification

    SciTech Connect (OSTI)

    Ratcliff, Blair N.; /SLAC

    2011-11-07T23:59:59.000Z

    The ring imaging Cherenkov (RICH) technique for hadronic particle identification (PID) is described. The advantages and limitations of RICH PID counters are compared with those of other classic PID techniques, such as threshold Cherenkov counters, ionization loss (dE/dx) in tracking devices, and time of flight (TOF) detectors.

  16. Unitary neutron matter in the on-shell limit

    E-Print Network [OSTI]

    Enrique Ruiz Arriola; Sergio Szpigel; Varese Salvador Timoteo

    2014-12-05T23:59:59.000Z

    We compute the Bertsch parameter for neutron matter by using nucleon-nucleon interactions that are fully diagonal in momentum space. We analyze the on-shell limit with the similarity renormalization group and compare the results for a simple separable toy model to realistic calculations with high precision $NN$ potentials.

  17. THE COMPANIES ACTS 1985 to 1989 COMPANY LIMITED BY GUARANTEE

    E-Print Network [OSTI]

    Rambaut, Andrew

    THE COMPANIES ACTS 1985 to 1989 ________________________________________________ COMPANY LIMITED of association of the Company. 1.2 In these Articles the following expressions shall, except where the context otherwise requires or permits, have the following meanings: "Act": the Companies Act 1985. "Articles

  18. ALPS - advanced limiter-divertor plasma-facing systems.

    SciTech Connect (OSTI)

    Allain, J. P.; Bastasz, R.; Brooks, J. N.; Evans, T.; Hassanein, A.; Luckhardt, S.; Maingi, R.; Mattas, R. F.; McCarthy, K.; Mioduszewski, P.; Mogahed, E.; Moir, R.; Molokov, S.; Morely, N.; Nygren, R.; Reed, C.; Rognlien, T.; Ruzic, D.; Sviatoslavsky, I.; Sze, D.; Tillack, M.; Ulrickson, M.; Wade, P. M.; Wong, C.; Wooley, R.

    1999-09-15T23:59:59.000Z

    The Advanced Limiter-divertor Plasma-facing Systems (ALPS) program was initiated in order to evaluate the potential for improved performance and lifetime for plasma-facing systems. The main goal of the program is to demonstrate the advantages of advanced limiter/divertor systems over conventional systems in terms of power density capability, component lifetime, and power conversion efficiency, while providing for safe operation and minimizing impurity concerns for the plasma. Most of the work to date has been applied to free surface liquids. A multi-disciplinary team from several institutions has been organized to address the key issues associated with these systems. The main performance goals for advanced limiters and diverters are a peak heat flux of >50 MW/m{sup 2},elimination of a lifetime limit for erosion, and the ability to extract useful heat at high power conversion efficiency ({approximately}40%). The evaluation of various options is being conducted through a combination of laboratory experiments, modeling of key processes, and conceptual design studies. The current emphasis for the work is on the effects of free surface liquids on plasma edge performance.

  19. Time Dependent Density Functional Theory Applications, limitations and ... new frontiers

    E-Print Network [OSTI]

    Botti, Silvana

    Time Dependent Density Functional Theory Applications, limitations and ... new frontiers Francesco Spectroscopy Facility (ETSF) Vienna, 19 January 2007 1/55 Time Dependent Density Functional Theory Francesco Sottile #12;Time-Dependent Density Functional Theory Applications and results: The ETSF Outline 1 Time

  20. Fault current limiter and alternating current circuit breaker

    DOE Patents [OSTI]

    Boenig, H.J.

    1998-03-10T23:59:59.000Z

    A solid-state circuit breaker and current limiter are disclosed for a load served by an alternating current source having a source impedance, the solid-state circuit breaker and current limiter comprising a thyristor bridge interposed between the alternating current source and the load, the thyristor bridge having four thyristor legs and four nodes, with a first node connected to the alternating current source, and a second node connected to the load. A coil is connected from a third node to a fourth node, the coil having an impedance of a value calculated to limit the current flowing therethrough to a predetermined value. Control means are connected to the thyristor legs for limiting the alternating current flow to the load under fault conditions to a predetermined level, and for gating the thyristor bridge under fault conditions to quickly reduce alternating current flowing therethrough to zero and thereafter to maintain the thyristor bridge in an electrically open condition preventing the alternating current from flowing therethrough for a predetermined period of time. 9 figs.

  1. Slippery diffusion-limited aggregation Clair R. Seager1,

    E-Print Network [OSTI]

    Weeks, Eric R.

    can translationally diffuse over the surface of the other. By contrast, shear-rigid bonding createsSlippery diffusion-limited aggregation Clair R. Seager1, * and Thomas G. Mason2, 1 Department attractions in liquids form irreversible "slippery" bonds that are not shear-rigid. Through event

  2. Limit theorems for bipower variation in financial econometrics

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Limit theorems for bipower variation in financial econometrics Ole E. Barndorff-Nielsen Department econometrics. The analysis is carried out under some rather general Brownian semimartingale assumptions, which come from and how they sit within the econometrics literature. Our theoretical development is motivated

  3. Original article Limitation of photosynthetic activity by CO2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Limitation of photosynthetic activity by CO2 availability in the chloroplasts to resistances opposing the CO2 fluxes in the mesophyll of tree leaves. To validate this assertion, values of CO2 CO2 assimilation and respiration rate measurement, and using the known electron requirements (four

  4. CLOUD PHYSICS From aerosol-limited to invigoration

    E-Print Network [OSTI]

    Napp, Nils

    CLOUD PHYSICS From aerosol-limited to invigoration of warm convective clouds Ilan Koren,1 * Guy Dagan,1 Orit Altaratz1 Among all cloud-aerosol interactions, the invigoration effect is the most elusive. Most of the studies that do suggest this effect link it to deep convective clouds with a warm base

  5. Energy Aware Computing through Probabilistic Switching: A Study of Limits

    E-Print Network [OSTI]

    Energy Aware Computing through Probabilistic Switching: A Study of Limits Krishna V. Palem, Fellow developed here for building energy-aware networks for computing, using PBITs. Interesting examples thermodynamics and, hence, can serve as a basis for energy-aware computing. While the estimates of the energy

  6. High voltage fault current limiter having immersed phase coils

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2014-04-22T23:59:59.000Z

    A fault current limiter including: a ferromagnetic circuit formed from a ferromagnetic material and including at least a first limb, and a second limb; a saturation mechanism surrounding a limb for magnetically saturating the ferromagnetic material; a phase coil wound around a second limb; a dielectric fluid surrounding the phase coil; a gaseous atmosphere surrounding the saturation mechanism.

  7. ornl ORNL/CON-63 Design Optimization and the Limits

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    for Conventional Single-Speed Air-Source Heat Pumps C. K. Rice W. L. Jackson S. K. Fischer R. D. Ellison #12 DESIGN OPTIMIZATION AND THE LIMITS OF STEADY-STATE HEATING EFFICIENCY FOR CONVENTIONAL SINGLE-SPEED AIR-SOURCE HEAT PUMPS C. K. Rice S. K. Fischer W. L. Jackson* R. D. Ellison Date Published: October 1981

  8. Compressive Video Classification for Decision Systems with Limited Resources

    E-Print Network [OSTI]

    Tsakalides, Panagiotis

    by the introduction of efficient computational models is video classification. With the advent of digital TVCompressive Video Classification for Decision Systems with Limited Resources George Tzagkarakis, Pavlos Charalampidis, Grigorios Tsagkatakis, Jean-Luc Starck, and Panagiotis Tsakalides Commissariat `a l'´Energie

  9. Benefits and Limitations of Tapping into Stored Energy For Datacenters

    E-Print Network [OSTI]

    Urgaonkar, Bhuvan

    Benefits and Limitations of Tapping into Stored Energy For Datacenters Sriram Govindan, Anand University Park, PA {sgovinda,anand,bhuvan}@cse.psu.edu Abstract. Datacenter power consumption has a signifBuff) available in the form of UPS batteries in datacenters for this cost optimization. Intuitively, eBuff stores

  10. Optimization of complex robot applications under real physical limitations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Optimization of complex robot applications under real physical limitations Matthieu Guilbert Pierre-Brice Wieber Luc Joly August 30, 2007 Abstract This paper deals with minimum time trajectory optimization difficult or even impossible to model. The structure of the optimization problem allows us to decompose

  11. Geometric Tomography: A Limited-View Approach for Computed Tomography

    E-Print Network [OSTI]

    Corso, Jason J.

    Geometric Tomography: A Limited-View Approach for Computed Tomography Peter B. Noël, Jinhui Xu Keywords Computed Tomography; Geometric Compressed Sensing; Topo- logical Peeling. ABSTRACT Computed to generate 3D data, denoted f, directly from projec- tions, denoted g. Thus, the projection relationship can

  12. MEDIA RESOURCES ADAPTATION FOR LIMITED DEVICES TAYEB LEMLOUMA1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MEDIA RESOURCES ADAPTATION FOR LIMITED DEVICES TAYEB LEMLOUMA1 ; NABIL LAYADA1 1 WAM Project, INRIA.Lemlouma@inrialpes.fr; Nabil.Layaida@inrialpes.fr In this paper, we define a framework for media resources manipulation in an adaptive content delivery system. We discuss the media resources manipulation in an adaptation

  13. The Family of "Circle Limit III" Escher Patterns Douglas Dunham

    E-Print Network [OSTI]

    Dunham, Doug

    consider the third one of this sequence, Circle Limit III -- a pattern of fish, to be the most beautiful. In this woodcut, four fish meet at right fin tips, three fish meet at left fin tips, and three fish meet at their noses. The backbones of the fish are aligned along white circular arcs. Fish on one arc are the same

  14. Geometric aspects of scaling limits of random planar maps

    E-Print Network [OSTI]

    Miermont, Grégory

    Geometric aspects of scaling limits of random planar maps G. Miermont Fondation des Sciences of random planar maps CCF'08 1 / 18 #12;Planar maps Definition A planar map is a proper embedding of the sphere. One is interested in the properties of various families of maps. Familiar ones are triangulations

  15. HYBRID LIMIT CYCLES AND HYBRID POINCARE-BENDIXSON

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    HYBRID LIMIT CYCLES AND HYBRID POINCAR´E-BENDIXSON Slobodan N. Simi´c Department of Electrical regular hybrid systems with no branching (Simi´c et al., 2000a). The first one provides a condition for asymptotic stability of hybrid closed orbits in terms of contraction-expansion rates of resets and flows

  16. Why Software Developers Should Support a New, Limited Patent

    E-Print Network [OSTI]

    Hollaar, Lee A.

    Why Software Developers Should Support a New, Limited Patent Lee A. Hollaar Professor, School Patent Conference, Brussels, 15-16 May 2007. The latest version of this paper, as well as the paper on which it is based, can be found at http://digital-law-online.info/papers/lah/mini-patent.htm Comments

  17. Doppler cooling to the Quantum limit M. Chalony,1

    E-Print Network [OSTI]

    is canceled. PACS numbers: 37.10.De, 37.10.Gh Laser cooling of atoms is a technique widely used, mainly of laser cooling and trapping techniques, in parallel with precise measure- ments of the momentumDoppler cooling to the Quantum limit M. Chalony,1 A. Kastberg,2 B. Klappauf,3 and D. Wilkowski1, 4

  18. SERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS

    E-Print Network [OSTI]

    reinforcements. The experimental program consisted of testing eight concrete beams prestressed by CFRP bars beams prestressed by Leadline CFRP bars were tested, in addition to two concrete beams prestressedAbstract SERVICEABILITY LIMIT STATES OF CONCRETE BEAMS PRESTRESSED BY CFRP BARS by Amr A

  19. LIMIT THEOREMS AND APPROXIMATIONS WITH APPLICATIONS TO INSURANCE RISK AND

    E-Print Network [OSTI]

    Blanchet, Jose H.

    LIMIT THEOREMS AND APPROXIMATIONS WITH APPLICATIONS TO INSURANCE RISK AND QUEUEING THEORY of philosophy Jose H. Blanchet August 2004 #12;c° Copyright by Jose H. Blanchet 2004 All Rights Reserved ii #12 and quality as a dissertation for the degree of Doctor of Philosophy. Peter W. Glynn (Principal Adviser) I

  20. THE GROWTH OF LIMITS OF VERTEX REPLACEMENT RULES

    E-Print Network [OSTI]

    Previte, Joseph P.

    THE GROWTH OF LIMITS OF VERTEX REPLACEMENT RULES JOSEPH PREVITE, MICHELLE PREVITE, AND MARY a vertex replacement rule given by exactly one replacement graph generates an infinite graph for the growth degree of infinite graphs with polynomial growth that are gener- ated by vertex replacement rules

  1. Limited Submission Funding Opportunity Health Resources and Services Administration

    E-Print Network [OSTI]

    Chisholm, Rex L.

    Limited Submission Funding Opportunity Health Resources and Services Administration Adolescent and Young Adult Health National Resource Center Program http://www.grants.gov/web/grants/view-opportunity.html?oppId=256241 FOA#: HRSA-14-050 The purpose of the Adolescent and Young Adult Health National Resource Center

  2. Modification and final alignment of the TFTR bumper limiter

    SciTech Connect (OSTI)

    McSmith, M.D. [McDonnell Douglas Aerospace, St. Louis, MO (United States); Loesser, G.D.; Owens, D.K. [Princeton Plasma Physics Lab., NJ (United States)

    1994-11-01T23:59:59.000Z

    During the past three Tokamak Fusion Test Reactor (TFTR) vacuum vessel machine openings, an extensive effort was undertaken to optimize the distribution of heating of the bumper limiter tiles. The optimization was achieved by locating the limiter tiles relative to the toroidal magnetic field and adjusting their position relative to the magnetic field rather than to fixed points in the vacuum vessel walls. This paper will discuss the results of these alignments as measured during operation with the limiter thermocouple system and subsequent visual inspection during this past TFTR vacuum vessel opening. During the most recent in-vessel inspection (January 1993), damage to the top and bottom rows of the bumper limiter tiles was noted. More tiles were damaged on the lower row than the upper row. Tiles on the right side of the bottom row and to a lesser extent tiles on the left side of the top row were damaged. The location of the damage corresponds to the plasma power flux direction. Theories explaining the asymmetric damage (bottom versus top) are summarized. Princeton Plasma Physics Laboratory (PPL) began a program to replace 223 of the originally installed tiles made from POCO AFX-5Q graphite. Of these 223 tiles, 151 were replaced with tiles made from carbon-fiber-composite (CFC) and 158 of these tiles were re-designed for installation on the top or bottom rows. The re-designed tiles have a tapered edge that reduces the angle of incidence of the power flux on the edge surface that was over-heating. This paper will review the in-vessel work and discuss the final modification of the TFTR bumper limiter to alleviate further damage at these locations prior to DT operation of TFTR.

  3. Slim completions offer limited stimulation variances: Part 3

    SciTech Connect (OSTI)

    Brunsman, B.J. (Gas Research Inst., Chicago, IL (United States)); Matson, R. (BJ Services Co., Tomball, TX (United States)); Shook, R.A. (Maurer Engineering Inc., Houston, TX (United States))

    1994-12-01T23:59:59.000Z

    This is the third in a series of five articles addressing barriers to increased US utilization of slimhole drilling and completion techniques. Previous articles discussed slimhole drilling and cementing. The focus of this article is stimulation, with an emphasis on hydraulic fracturing. This series is based on a study conducted for Gas Research institute (GRI) by an industry team consisting of Maurer Engineering, BJ Services, Baker Oil tools, and Halliburton. Parts 1 and 2 were published in the September and October 1994 issues of Petroleum Engineer International, respectively. Potential cost saving resulting from slimhole drilling and completions of gas wells are often inhibited by the limitations on hydraulic fracturing. Variances from conventional fracturing include excessive friction pressure, fracture fluid degradation due to excessive shear rates, proppant bridging and limited diverting options.

  4. Limits to the power density of very large wind farms

    E-Print Network [OSTI]

    Nishino, Takafumi

    2013-01-01T23:59:59.000Z

    A simple analysis is presented concerning an upper limit of the power density (power per unit land area) of a very large wind farm located at the bottom of a fully developed boundary layer. The analysis suggests that the limit of the power density is about 0.38 times $\\tau_{w0}U_{F0}$, where $\\tau_{w0}$ is the natural shear stress on the ground (that is observed before constructing the wind farm) and $U_{F0}$ is the natural or undisturbed wind speed averaged across the height of the farm to be constructed. Importantly, this implies that the maximum extractable power from such a very large wind farm will not be proportional to the cubic of the wind speed at the farm height, or even the farm height itself, but be proportional to $U_{F0}$.

  5. Conservative Moment Equations for Neutrino Radiation Transport with Limited Relativity

    E-Print Network [OSTI]

    Endeve, Eirik; Mezzacappa, Anthony

    2012-01-01T23:59:59.000Z

    We derive conservative, multidimensional, energy-dependent moment equations for neutrino transport in core-collapse supernovae and related astrophysical systems, with particular attention to the consistency of conservative four-momentum and lepton number transport equations. After taking angular moments of conservative formulations of the general relativistic Boltzmann equation, we specialize to a conformally flat spacetime, which also serves as the basis for four further limits. Two of these---the multidimensional special relativistic case, and a conformally flat formulation of the spherically symmetric general relativistic case---are given in appendices for the sake of comparison with extant literature. The third limit is a weak-field, `pseudo-Newtonian' approach \\citep{kim_etal_2009,kim_etal_2012} in which the source of the gravitational potential includes the trace of the stress-energy tensor (rather than just the mass density), and all orders in fluid velocity $v$ are retained. Our primary interest here ...

  6. Limits of quantum speedup in photosynthetic light harvesting

    E-Print Network [OSTI]

    Stephan Hoyer; Mohan Sarovar; K. Birgitta Whaley

    2010-05-07T23:59:59.000Z

    It has been suggested that excitation transport in photosynthetic light harvesting complexes features speedups analogous to those found in quantum algorithms. Here we compare the dynamics in these light harvesting systems to the dynamics of quantum walks, in order to elucidate the limits of such quantum speedups. For the Fenna-Matthews-Olson (FMO) complex of green sulfur bacteria, we show that while there is indeed speedup at short times, this is short lived (70 fs) despite longer lived (ps) quantum coherence. Remarkably, this time scale is independent of the details of the decoherence model. More generally, we show that the distinguishing features of light-harvesting complexes not only limit the extent of quantum speedup but also reduce rates of diffusive transport. These results suggest that quantum coherent effects in biological systems are optimized for efficiency or robustness rather than the more elusive goal of quantum speedup.

  7. Segment Directory Enhancing the Limited Directory Cache Coherence Schemes

    E-Print Network [OSTI]

    Jong Hyuk Choi; Kyu Ho Park

    1999-01-01T23:59:59.000Z

    We present a new arrangement of directory bits called the segment directory to improve directory storage efficiency: a segment directory can point to several sharing processors with almost the same number of bits as the pointer which can point to only one. Many directory overflows can be eliminated by using the segment directory element in place of the pointer in the limited directory schemes. Also, the segment directory can be implemented without introducing additional hardware overhead and protocol complexity. The detailed execution-driven simulations show that the segment directory always does better than the pointer and eliminates many directory overflows by up to 85%. The resulting improvement in bandwidth and execution time is analyzed in detail for limited directory schemes having different behaviors, with respect to the reduced directory overflows. 1.

  8. Single nanowire solar cells beyond the Shockley-Queisser limit

    E-Print Network [OSTI]

    Krogstrup, Peter; Heiss, Martin; Demichel, Olivier; Holm, Jeppe V; Aagesen, Martin; Nygard, Jesper; Morral, Anna Fontcuberta i

    2013-01-01T23:59:59.000Z

    Light management is of great importance to photovoltaic cells, as it determines the fraction of incident light entering the device. An optimal pn-junction combined with an optimal light absorption can lead to a solar cell efficiency above the Shockley-Queisser limit. Here, we show how this is possible by studying photocurrent generation for a single core-shell p-i-n junction GaAs nanowire solar cell grown on a silicon substrate. At one sun illumination a short circuit current of 180 mA/cm^2 is obtained, which is more than one order of magnitude higher than what would be predicted from Lambert-Beer law. The enhanced light absorption is shown to be due to a light concentrating property of the standing nanowire as shown by photocurrent maps of the device. The results imply new limits for the maximum efficiency obtainable with III-V based nanowire solar cells under one sun illumination.

  9. Torque limit of PM motors for field-weakening region operation

    DOE Patents [OSTI]

    Royak, Semyon (Beachwood, OH); Harbaugh, Mark M. (Richfield, OH)

    2012-02-14T23:59:59.000Z

    The invention includes a motor controller and technique for controlling a permanent magnet motor. In accordance with one aspect of the present technique, a permanent magnet motor is controlled by receiving a torque command, determining a physical torque limit based on a stator frequency, determining a theoretical torque limit based on a maximum available voltage and motor inductance ratio, and limiting the torque command to the smaller of the physical torque limit and the theoretical torque limit. Receiving the torque command may include normalizing the torque command to obtain a normalized torque command, determining the physical torque limit may include determining a normalized physical torque limit, determining a theoretical torque limit may include determining a normalized theoretical torque limit, and limiting the torque command may include limiting the normalized torque command to the smaller of the normalized physical torque limit and the normalized theoretical torque limit.

  10. Advanced binary geothermal power plants: Limits of performance

    SciTech Connect (OSTI)

    Bliem, C.J.; Mines, G.L.

    1991-01-01T23:59:59.000Z

    The Heat Cycle Research Program is investigating potential improvements to power cycles utilizing moderate temperature geothermal resources to produce electrical power. Investigations have specifically examined Rankine cycle binary power systems. Binary Rankine cycles are more efficient than the flash steam cycles at moderate resource temperature, achieving a higher net brine effectiveness. At resource conditions similar to those at the Heber binary plant, it has been shown that mixtures of saturated hydrocarbons (alkanes) or halogenated hydrocarbons operating in a supercritical Rankine cycle gave improved performance over Rankine cycles with the pure working fluids executing single or dual boiling cycles or supercritical cycles. Recently, other types of cycles have been proposed for binary geothermal service. This report explores the feasible limits on efficiency of a plant given practical limits on equipment performance and discusses the methods used in these advanced concept plants to achieve the maximum possible efficiency. (Here feasible is intended to mean reasonably achievable and not cost-effective.) No direct economic analysis has been made because of the sensitivity of economic results to site specific input. The limit of performance of three advanced plants were considered in this report. The performance predictions were taken from the developers of each concept. The advanced plants considered appear to be approaching the feasible limit of performance. Ultimately, the plant designer must weigh the advantages and disadvantages of the the different cycles to find the best plant for a given service. In addition, this report presents a standard of comparison of the work which has been done in the Heat Cycle Research Program and in the industrial sector by Exergy, Inc. and Polythermal Technologies. 18 refs., 16 figs., 1 tab.

  11. Vortex topology and the continuum limit of lattice gauge theories

    E-Print Network [OSTI]

    G. Burgio

    2007-10-02T23:59:59.000Z

    We study the stability of Z_2 topological vortex excitations in d+1 dimensional SU(2) Yang-Mills theory on the lattice at T=0. This is found to depend on d and on the coupling considered. We discuss the connection with lattice artifacts causing bulk transitions in the beta_A-beta_F plane and draw some conclusions regarding the continuum limit of the theory.

  12. Dark matter limits froma 15 kg windowless bubble chamber

    SciTech Connect (OSTI)

    Szydagis, Matthew Mark; /Chicago U.

    2010-12-01T23:59:59.000Z

    The COUPP collaboration has successfully used bubble chambers, a technology previously applied only to high-energy physics experiments, as direct dark matter detectors. It has produced the world's most stringent spin-dependent WIMP limits, and increasingly competitive spin-independent limits. These limits were achieved by capitalizing on an intrinsic rejection of the gamma background that all other direct detection experiments must address through high-density shielding and empirically-determined data cuts. The history of COUPP, including its earliest prototypes and latest results, is briefly discussed in this thesis. The feasibility of a new, windowless bubble chamber concept simpler and more inexpensive in design is discussed here as well. The dark matter limits achieved with a 15 kg windowless chamber, larger than any previous COUPP chamber (2 kg, 4 kg), are presented. Evidence of the greater radiopurity of synthetic quartz compared to natural is presented using the data from this 15 kg device, the first chamber to be made from synthetic quartz. The effective reconstruction of the three-dimensional positions of bubbles in a highly distorted optical field, with ninety-degree bottom lighting similar to cloud chamber lighting, is demonstrated. Another innovation described in this thesis is the use of the sound produced by bubbles recorded by an array of piezoelectric sensors as the primary means of bubble detection. In other COUPP chambers, cameras have been used as the primary trigger. Previous work on bubble acoustic signature differentiation using piezos is built upon in order to further demonstrate the ability to discriminate between alpha- and neutron-induced events.

  13. Radiation-effects limits on copper in superconducting magnets

    SciTech Connect (OSTI)

    Guinan, M.W.

    1983-05-25T23:59:59.000Z

    The determination of the response of copper stabilizers to neutron irradiation in fusion-reactor superconducting magnets requires information in four areas: (1) neutron flux and spectrum determination, (2) resistivity changes at zero field, (3) resistivity changes at field, and (4) the cyclic irradiation and annealing. Applications of our current understanding of the limits of copper stabilizers in fusion-reactor designs are explored in two examples. Recommendations for future additions to the data base are discussed.

  14. Central Limit Theorem for Branching Random Walks in Random Environment

    E-Print Network [OSTI]

    Nobuo Yoshida

    2007-12-05T23:59:59.000Z

    We consider branching random walks in $d$-dimensional integer lattice with time-space i.i.d. offspring distributions. When $d \\ge 3$ and the fluctuation of the environment is well moderated by the random walk, we prove a central limit theorem for the density of the population, together with upper bounds for the density of the most populated site and the replica overlap. We also discuss the phase transition of this model in connection with directed polymers in random environment.

  15. Schr\\"oder's problems and scaling limits of random trees

    E-Print Network [OSTI]

    Pitman, Jim

    2011-01-01T23:59:59.000Z

    In a classic paper Schr\\"oder posed four combinatorial problems about the number of certain types of bracketings of words and sets. Here we address what these bracketings look like on average. For each of the four problems we prove that a uniform pick from the appropriate set of bracketings, when considered as a tree, has the Brownian continuum random tree as its scaling limit as the size of the word or set goes to infinity.

  16. Limited Personal Use of Government Office Equipment including Information Technology

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-01-07T23:59:59.000Z

    The Order establishes requirements and assigns responsibilities for employees' limited personal use of Government resources (office equipment and other resources including information technology) within DOE, including NNSA. The Order is required to provide guidance on appropriate and inappropriate uses of Government resources. This Order was certified 04/23/2009 as accurate and continues to be relevant and appropriate for use by the Department. Certified 4-23-09. No cancellation.

  17. Hyperbolic Conservation Laws and Hydrodynamic Limit for Particle Systems

    E-Print Network [OSTI]

    Gui-Qiang Chen; Nadine Even; Christian Klingenberg

    2007-10-01T23:59:59.000Z

    We study the following class of scalar hyperbolic conservation laws with discontinuous fluxes: \\partial_t\\rho+\\partial_xF(x,\\rho)=0. The main feature of such a conservation law is the discontinuity of the flux function in the space variable x. Kruzkov's approach for the L1-contraction does not apply since it requires the Lipschitz continuity of the flux function; and entropy solutions even for the Riemann problem are not unique under the classical entropy conditions. On the other hand, it is known that, in statistical mechanics, some microscopic interacting particle systems with discontinuous speed parameter lambda(x), in the hydrodynamic limit, formally lead to scalar hyperbolic conservation laws with discontinuous fluxes of the form: \\partial_t\\rho+\\partial_x(\\lambda(x)h(\\rho))=0. The natural question arises which entropy solutions the hydrodynamic limit selects, thereby leading to a suitable, physical relevant notion of entropy solutions of this class of conservation laws. This paper is a first step and provides an answer to this question for a family of discontinuous flux functions. In particular, we identify the entropy condition for our PDE and proceed to show the well-posedness by combining our existence result with a uniqueness result of Audusse-Perthame (2005) for the family of flux functions; we establish a compactness framework for the hydrodynamic limit of large particle systems and the convergence of other approximate solutions to our PDE, which is based on the notion and reduction of measure-valued entropy solutions; and we finally establish the hydrodynamic limit for a ZRP with discontinuous speed-parameter governed by an entropy solution to our PDE.

  18. Combined upper limit for SM Higgs at the Tevatron

    SciTech Connect (OSTI)

    Penning, Bjorn; /Fermilab

    2009-01-01T23:59:59.000Z

    We combine results from CDF and D0 on direct searches for a standard model (SM) Higgs boson (H) in p{bar p} collisions at the Fermilab Tevatron at {radical}s = 1.96 TeV. Compared to the previous Higgs Tevatron combination, more data and new channels (WH {yields} {tau}{nu}b{bar b}, VH {yields} {tau}{tau}b{bar b}/jj{tau}{tau}, VH {yields} jjb{bar b}, t{bar t}H {yields} t{bar t}b{bar b}) have been added. Most previously used channels have been reanalyzed to gain sensitivity. We use the latest parton distribution functions and gg {yields} H theoretical cross sections when comparing our limits to the SM predictions. With 2.0-3.6 fb{sup -1} of data analyzed at CDF, and 0.9-4.2 fb{sup -1} at D0, the 95%C.L. upper limits on Higgs boson production are a factor of 2.5 (0.86) times the SM cross section for a Higgs boson mass of m{sub H} = 115 (165) GeV/c{sup 2}. Based on simulation, the corresponding median expected upper limits are 2.4 (1.1). The mass range excluded at 95% C.L. for a SM Higgs has been extended to 160 < m{sub H} < 170 GeV/c{sup 2}.

  19. Herbivores and nutrients control grassland plant diversity via light limitation.

    SciTech Connect (OSTI)

    Borer, Elizabeth T. [Department of Ecology, Evolution, and Behavior, University of Minnesota; et al, et al

    2014-01-01T23:59:59.000Z

    Human alterations to nutrient cycles1,2 and herbivore communities3–7 are affecting global biodiversity dramatically2. Ecological theory predicts these changes should be strongly counteractive: nutrient addition drives plant species loss through intensified competition for light, whereas herbivores prevent competitive exclusion by increasing ground-level light, particularly in productive systems8,9. Here we use experimental data spanning a globally relevant range of conditions to test the hypothesis that herbaceous plant species losses caused by eutrophication may be offset by increased light availability due to herbivory. This experiment, replicated in 40 grasslands on 6 continents, demonstrates that nutrients and herbivores can serve as counteracting forces to control local plant diversity through light limitation, independent of site productivity, soil nitrogen, herbivore type and climate. Nutrient addition consistently reduced local diversity through light limitation, and herbivory rescued diversity at sites where it alleviated light limitation. Thus, species loss from anthropogenic eutrophication can be ameliorated in grasslands where herbivory increases ground-level light.

  20. Improve Claus simulation by integrating kinetic limitations into equilibrium calculations

    SciTech Connect (OSTI)

    Wen, T.C.

    1986-01-01T23:59:59.000Z

    Since all existing Claus simulators are based on equilibrium calculations, it is not surprising that the simulation results, including the overall sulfur yield, air to acid gas ratio, and stream compositions are somewhat different from the plant data. One method for improving the simulation is to consider the kinetic limitations in the Claus reactions. This has been accomplished in this work by integrating kinetic considerations into equilibrium calculations. Kinetic limitations have been introduced in both the Claus reaction furnace and the catalytic converters. An interactive computer program SULPLT Version 3 was written to implement the proposed modifications. The computer program was used to simulate the Claus furnace, catalytic converters, and the effect of air to acid gas ratio on sulfur recovery to check against literature data. Three Claus plants for which data exist have also been simulated. The results show that the proposed model predicts sulfur recovery, sulfur emission, optimal air to acid gas ratio, and various stream compositions more accurately than the equilibrium model. The proposed model appears to be valid, reliable, and applicable over a wide range of operating conditions (acid gas feeds ranging from 13% to 95% H/sub 2/S with different levels of impurities). The methodology developed in this study should be applicable to any reaction systems where kinetic limitations are important but where equilibrium still prevails.

  1. Baryonic Dark Matter: Limits from HST and ISO

    E-Print Network [OSTI]

    Gerard Gilmore; IoA Cambridge; UK

    1998-12-15T23:59:59.000Z

    Recent HST and ISO observations provide very severe limits on any compact baryonic contributions to galactic (dark) halos. When combined with Milky Way Galaxy microlensing results, almost the entire plausible range of massive compact baryonic objects is excluded by direct observation. Deep direct imaging at 7mu and 15mu with ISOCAM on the ISO spacecraft directly excludes hydrogen-burning stars of any mass above the hydrogen-burning limit, and of any chemical abundance, from being the predominant explanation of the dark halos of external spiral galaxies. In the Milky Way Galaxy, HST has provided luminosity functions to the hydrogen-burning limit in several globular clusters. The resulting mass functions do not provide any support for dominance by very low-mass stars. This is consistent with field surveys for sub-stellar mass brown dwarfs, which show such objects to be relatively rare. These results are complemented by very deep HST luminosity functions in the Large Magellanic Cloud, providing strong support for the (near)-universality of the stellar mass function. Very recent HST results are available for the nearby dSph galaxy UMi. This galaxy, the most dark-matter dominated object known on kpc scales, has a normal stellar mass function at low masses. The prospects are bright for dark elementary particles.

  2. Toroidal midplane neutral beam armor and plasma limiter

    DOE Patents [OSTI]

    Kugel, H.W.; Hand, S.W. Jr.; Ksayian, H.

    1985-05-31T23:59:59.000Z

    This invention contemplates an armor shield/plasma limiter positioned upon the inner wall of a toroidal vacuum chamber within which is magnetically confined an energetic plasma in a tokamak nuclear fusion reactor. The armor shield/plasma limiter is thus of a general semi-toroidal shape and is comprised of a plurality of adjacent graphite plates positioned immediately adjacent to each other so as to form a continuous ring upon and around the toroidal chamber's inner wall and the reactor's midplane coil. Each plate has a generally semi-circular outer circumference and a recessed inner portion and is comprised of upper and lower half sections positioned immediately adjacent to one another along the midplane of the plate. With the upper and lower half sections thus joined, a channel or duct is provided within the midplane of the plate in which a magnetic flux loop is positioned. The magnetic flux loop is thus positioned immediately adjacent to the fusing toroidal plasma and serves as a diagnostic sensor with the armor shield/plasma limiter minimizing the amount of power from the energetic plasma as well as from the neutral particle beams heating the plasma incident upon the flux loop.

  3. Safety assessment of historical masonry churches based on pre-assigned kinematic limit analysis, FE limit and pushover analyses

    SciTech Connect (OSTI)

    Milani, Gabriele, E-mail: milani@stru.polimi.it; Valente, Marco, E-mail: milani@stru.polimi.it [Department of Architecture, Built Environment and Construction Engineering (ABC), Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan (Italy)

    2014-10-06T23:59:59.000Z

    This study presents some results of a comprehensive numerical analysis on three masonry churches damaged by the recent Emilia-Romagna (Italy) seismic events occurred in May 2012. The numerical study comprises: (a) pushover analyses conducted with a commercial code, standard nonlinear material models and two different horizontal load distributions; (b) FE kinematic limit analyses performed using a non-commercial software based on a preliminary homogenization of the masonry materials and a subsequent limit analysis with triangular elements and interfaces; (c) kinematic limit analyses conducted in agreement with the Italian code and based on the a-priori assumption of preassigned failure mechanisms, where the masonry material is considered unable to withstand tensile stresses. All models are capable of giving information on the active failure mechanism and the base shear at failure, which, if properly made non-dimensional with the weight of the structure, gives also an indication of the horizontal peak ground acceleration causing the collapse of the church. The results obtained from all three models indicate that the collapse is usually due to the activation of partial mechanisms (apse, façade, lateral walls, etc.). Moreover the horizontal peak ground acceleration associated to the collapse is largely lower than that required in that seismic zone by the Italian code for ordinary buildings. These outcomes highlight that structural upgrading interventions would be extremely beneficial for the considerable reduction of the seismic vulnerability of such kind of historical structures.

  4. EDINBURGH TECHNOLOGY TRANSFER CENTRE LIMITED GUIDE TO INFORMATION AVAILABLE THROUGH OUR PUBLICATION SCHEME

    E-Print Network [OSTI]

    Edinburgh, University of

    EDINBURGH TECHNOLOGY TRANSFER CENTRE LIMITED GUIDE TO INFORMATION AVAILABLE THROUGH OUR PUBLICATION and what it might cost. Edinburgh Technology Transfer Centre Limited ("the company") has adopted the Model Unless otherwise stated, Edinburgh Technology Transfer Centre Limited reserves copyright in all

  5. Performance limits of fusion first-wall structural materials.

    SciTech Connect (OSTI)

    Smith, D. L.; Majumdar, S.; Billone, M.; Mattas, R. F.

    1999-11-12T23:59:59.000Z

    Key features of fusion energy relate primarily to potential advantages associated with safety and environmental considerations and the near endless supply of fuel. However, it is generally concluded that high performance fusion power systems will be required in order to be economically competitive with other energy options. As in most energy systems, structural materials operating limits pose a primary constraint to the performance of fusion power systems. It is also recognized that for the case of fusion power, the first-wall/blanket system will have a dominant impact on both the economic and safety/environmental attractiveness of fusion energy. The first-wall blanket structure is particularly critical since it must maintain high integrity at relatively high temperatures during exposure to high radiation levels, high surface heat fluxes, and significant primary stresses. The performance limits of the first-wall/blanket structure will be dependent on the structural material properties, the coolant/breeder system, and the specific design configuration. Key factors associated with high performance structural materials include (1) high temperature operation, (2) a large operating temperature window, and (3) a long operating lifetime. High temperature operation is necessary to provide for high power conversion efficiency. As discussed later, low-pressure coolant systems provide significant advantages. A large operating temperature window is necessary to accommodate high surface heating and high power density. The operating temperature range for the structure must include the temperature gradient through the first wall and the coolant system AT required for efficient energy conversion. This later requirement is dependent on the coolant/breeder operating temperature limits. A long operating lifetime of the structure is important to improve system availability and to minimize waste disposition.

  6. Thermodynamic limits to the quality of UCG product gas

    SciTech Connect (OSTI)

    Creighton, J.

    1982-08-03T23:59:59.000Z

    The goal of this work was to find the limits placed on the quality of UCG product gas by the energy and mass balances, including atom balances. If the outlet gas contains no O/sub 2/, there are only two independent variables. If these are chosen to be the mass fractions, X/sub CO/ and X/sub H/sub 2//, both the temperature of the outlet gas and the heat of combustion available by burning it are functions of these two variables only. The lines of constant temperature are parallel to the lines of constant heat of combustion, so it is clear that the available energy is partitioned between the sensible heat and the heat of combustion of the gas. The maximum heat available is set by the amount of oxygen in the inlet mixture; because the outlet temperature must exceed the minimum coal-surface temperature for burning, only heat losses within the system will generally reduce the heat of combustion. The maximum mass fractions of H/sub 2/ and CO in the product gas are limited by the impossibility of negative mass fractions of H/sub 2/O and CO/sub 2/. Additional limitations are imposed by the assumption of a minimum temperature. One of the two independent variables can be eliminated if the assumption of thermochemical equilibrium is valid. The product composition then lies on a single line in a phase plane of X/sub H/sub 2// vs X/sub CO/, and at a given outlet temperature the composition is fixed. Unfortunately, it appears that experimental values of X/sub H/sub 2// lie well above the equilibrium curve. Experimental data do indicate, however, that the system tends to operate near the minimum temperature to sustain the steam/char reaction on the coal surface, thus maximizing the heat of combustion of the outlet gas.

  7. Calculating limits for torsion and tensile loads on drill pipe

    SciTech Connect (OSTI)

    Bailey, E.I. [Stress Engineering Service Inc., Houston, TX (United States); Smith, J.E. [Grant Prideco, Houston, TX (United States)

    1998-02-01T23:59:59.000Z

    Drill pipe used for drilling horizontal and extended reach holes experiences much higher torsional and tensile loads than normally seen while drilling vertical holes. This is particularly true for rigs with top drives vs. rigs with rotary tables. When pipe is rotated while pulling out of the hole, which is commonly done on top drive rigs, the drill pipe can experience high tensile and torsional loading simultaneously. These conditions increase the probability of overload on tool joints and require that the drill pipe and tool joint selection process include consideration of combined loading. Calculating the required drill pipe strength for vertical holes is straightforward and spelled out in Section 5 of API RP7G. In vertical hole applications, pipe is almost always selected for its tensile capacity and the torsional strength of the pipe generally does not require special consideration. In Section 4 of API Sec 7, API recommends that the tool joints have a torsional strength of 80% of the pipe`s torsional strength; this is usually adequate. The torsional strength and tensile strength of commonly used drill pipe and tool joint combinations are tabulated in Tables 2 through 10 of API RP7G. Appendix A.8.3 in API RP7G shows a method for plotting a graphical representation of the combined torsional and tensile operational limits of tool joints. How to calculate the limits of the drill pipe tube is shown in Appendix A.9.2. This paper defines terms and limits, and discusses building and using a diagram to determine safe loads.

  8. Strong Upper Limits on Sterile Neutrino Warm Dark Matter

    SciTech Connect (OSTI)

    Yueksel, Hasan [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210 (United States); Beacom, John F. [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210 (United States); Department of Astronomy, Ohio State University, Columbus, Ohio 43210 (United States); Watson, Casey R. [Department of Physics and Astronomy, Millikin University, Decatur, Illinois 62522 (United States)

    2008-09-19T23:59:59.000Z

    Sterile neutrinos are attractive dark matter candidates. Their parameter space of mass and mixing angle has not yet been fully tested despite intensive efforts that exploit their gravitational clustering properties and radiative decays. We use the limits on gamma-ray line emission from the Galactic center region obtained with the SPI spectrometer on the INTEGRAL satellite to set new constraints, which improve on the earlier bounds on mixing by more than 2 orders of magnitude, and thus strongly restrict a wide and interesting range of models.

  9. Varying properties along lengths of temperature limited heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Xie, Xueying (Houston, TX); Miller, David Scott (Katy, TX); Ginestra, Jean Charles (Richmond, TX)

    2011-07-26T23:59:59.000Z

    A system for heating a subsurface formation is described. The system includes an elongated heater in an opening in the formation. The elongated heater includes two or more portions along the length of the heater that have different power outputs. At least one portion of the elongated heater includes at least one temperature limited portion with at least one selected temperature at which the portion provides a reduced heat output. The heater is configured to provide heat to the formation with the different power outputs. The heater is configured so that the heater heats one or more portions of the formation at one or more selected heating rates.

  10. Time Step Size Limitation Introduced by the BSSN Gamma Driver

    E-Print Network [OSTI]

    Erik Schnetter

    2010-06-17T23:59:59.000Z

    Many mesh refinement simulations currently performed in numerical relativity counteract instabilities near the outer boundary of the simulation domain either by changes to the mesh refinement scheme or by changes to the gauge condition. We point out that the BSSN Gamma Driver gauge condition introduces a time step size limitation in a similar manner as a CFL condition, but which is independent of the spatial resolution. We give a didactic explanation of this issue, show why especially mesh refinement simulations suffer from it, and point to a simple remedy.

  11. Detailed balance limit of power conversion efficiency for organic photovoltaics

    SciTech Connect (OSTI)

    Seki, Kazuhiko, E-mail: k-seki@aist.go.jp [NRI, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan)] [NRI, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan); Furube, Akihiro [RIIF, AIST Tsukuba Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 (Japan)] [RIIF, AIST Tsukuba Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 (Japan); Yoshida, Yuji [RCPVT, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan)] [RCPVT, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565 (Japan)

    2013-12-16T23:59:59.000Z

    A fundamental difference between inorganic photovoltaic (IPV) and organic photovoltaic (OPV) cells is that charges are generated at the interface in OPV cells, while free charges can be generated in the bulk in IPV cells. In OPV cells, charge generation involves intrinsic energy losses to dissociate excitons at the interface between the donor and acceptor. By taking into account the energy losses, we show the theoretical limits of the power conversion efficiency set by radiative recombination of the carriers on the basis of the detailed balance relation between radiation from the cell and black-body radiation.

  12. Extracellular Proteins Limit the Dispersal of BiogenicNanoparticles

    SciTech Connect (OSTI)

    Moreau, John W.; Weber, Peter K.; Martin, Michael C.; Gilbert,Benjamin; Hutcheon, Ian D.; Banfield, Jillian F.

    2007-04-27T23:59:59.000Z

    High spatial-resolution secondaryion microprobespectrometry, synchrotron radiation Fourier-transform infraredspectroscopy and polyacrylamide gel analysis demonstrate the intimateassociation of proteins with spheroidal aggregates of biogenic zincsulfide nanocrystals, an example of extracellular biomineralization.Experiments involving synthetic ZnS nanoparticles and representativeamino acids indicate a driving role for cysteine in rapid nanoparticleaggregation. These findings suggest that microbially-derivedextracellular proteins can limit dispersal of nanoparticulatemetal-bearing phases, such as the mineral products of bioremediation,that may otherwise be transported away from their source by subsurfacefluid flow.

  13. Upper limits on charm-changing neutral-current interactions

    E-Print Network [OSTI]

    Baringer, Philip S.

    1988-04-18T23:59:59.000Z

    parallel decays can be computed with NII =N„e(l+l )8(c l X), where N„ is the number of cc events, e(1+I ) is the detection efficiency for parallel decays, and 8(c l X) is the average semileptonic branching ratio of the charmed hadrons in the continuum...VOLUME 60, NUMBER 16 PHYSICAL REVIEW LETTERS 18 APRIL 1988 Upper Limits on Charm-Changing Neutral-Current Interactions P. Haas, ' M. Hempstead, ' T. Jensen, ' D. R. Johnson, ' H. Kagan, ' R. Kass, ' P. Baringer, R. L. McIlwain, D. H. Miller, C. R...

  14. Flat Space Limit of (Higher-Spin) Cardy Formula

    E-Print Network [OSTI]

    Max Riegler

    2014-11-14T23:59:59.000Z

    In this note I derive the flat space limit of the modified Cardy formula associated with inner horizons and show that it reproduces the correct Galilean conformal field theory counting of flat space cosmology microstates. l also determine the entropy of flat space cosmologies in flat space chiral gravity in this way. In addition, I derive a Cardy-like expression for flat space cosmologies with spin-3 charges and thus give a prediction for the corresponding Galilean conformal field theory counting of flat space cosmology microstates with spin-3 charges.

  15. Testing the potential and limitations of seismic data

    E-Print Network [OSTI]

    Orlagh L. Creevey

    2008-10-14T23:59:59.000Z

    I describe the advantage of using singular value decomposition as a diagnostic tool for exploring the potential and limitations of seismic data. Using stellar models coupled with the expected errors in seismic and complementary data we can predict the precision in the stellar parameters. This in turn allows us to quantify if and to what extent we can distinguish between various descriptions of the interior physical processes. This method can be applied to a wide range of astrophysical problems, and here I present one such example which shows that the convective core overshoot parameter can be constrained with one identified mode if the pulsating component is in an eclipsing binary system.

  16. Special Analysis: Revision of Saltstone Vault 4 Disposal Limits (U)

    SciTech Connect (OSTI)

    Cook, J

    2005-05-26T23:59:59.000Z

    New disposal limits have been computed for Vault 4 of the Saltstone Disposal Facility based on several revisions to the models in the existing Performance Assessment and the Special Analysis issued in 2002. The most important changes are the use of a more rigorous groundwater flow and transport model, and consideration of radon emanation. Other revisions include refinement of the aquifer mesh to more accurately model the footprint of the vault, a new plutonium chemistry model accounting for the different transport properties of oxidation states III/IV and V/VI, use of variable infiltration rates to simulate degradation of the closure system, explicit calculation of gaseous releases and consideration of the effects of settlement and seismic activity on the vault structure. The disposal limits have been compared with the projected total inventory expected to be disposed in Vault 4. The resulting sum-of-fractions of the 1000-year disposal limits is 0.2, which indicates that the performance objectives and requirements of DOE 435.1 will not be exceeded. This SA has not altered the conceptual model (i.e., migration of radionuclides from the Saltstone waste form and Vault 4 to the environment via the processes of diffusion and advection) of the Saltstone PA (MMES 1992) nor has it altered the conclusions of the PA (i.e., disposal of the proposed waste in the SDF will meet DOE performance measures). Thus a PA revision is not required and this SA serves to update the disposal limits for Vault 4. In addition, projected doses have been calculated for comparison with the performance objectives laid out in 10 CFR 61. These doses are 0.05 mrem/year to a member of the public and 21.5 mrem/year to an inadvertent intruder in the resident scenario over a 10,000-year time-frame, which demonstrates that the 10 CFR 61 performance objectives will not be exceeded. This SA supplements the Saltstone PA and supersedes the two previous SAs (Cook et al. 2002; Cook and Kaplan 2003).

  17. Bounded limit for the Monte Carlo point-flux-estimator

    SciTech Connect (OSTI)

    Grimesey, R.A.

    1981-01-01T23:59:59.000Z

    In a Monte Carlo random walk the kernel K(R,E) is used as an expected value estimator at every collision for the collided flux phi/sub c/ r vector,E) at the detector point. A limiting value for the kernel is derived from a diffusion approximation for the probability current at a radius R/sub 1/ from the detector point. The variance of the collided flux at the detector point is thus bounded using this asymptotic form for K(R,E). The bounded point flux estimator is derived. (WHK)

  18. PP-206 Frontera Generation Limited Partnership | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15, 2010Energy6 Frontera Generation Limited Partnership PP-206

  19. PP-22 British Columbia Electric Company, Limited | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15, 2010Energy6 Frontera Generation Limited Partnership

  20. PP-22 British Columbia Electric Company, Limited, Amendment 1957 |

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15, 2010Energy6 Frontera Generation Limited PartnershipDepartment

  1. PP-85-3 Boliden Power Limited | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15, 2010Energy6 Frontera Generation Limited15 Trico39 Westmin5-23

  2. Limiting Factors for Convective Cloud Top Height in the Tropics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011Liisa O'Neill About Us Liisa O'NeillLimiting

  3. CO2e Capital Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis a city in ChittendenPartners LLC JumpCO2e Capital Limited

  4. Rithwik Energy System Limited RESL | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue RidgeUniversityMedio, New Mexico:Limited RESL Jump to:

  5. Rithwik Power Projects Limited RPPL | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue RidgeUniversityMedio, New Mexico:Limited RESL Jump

  6. SunDwel Solar Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen, Minnesota:36052°, -97.6114217° LoadingEnergySunDwel Solar Limited

  7. Sandia National Laboratories: LIMITS Liquid Metal Flow Loop

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS ExhibitIowa State UniversityFacilityLIMITS Liquid Metal Flow

  8. E-Print Network 3.0 - atpase rate-limiting adp Sample Search...

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

    and step 2 is a rate-limiting isomerization to a state of enhanced pyrene... that ATP hydrolysis is rate limiting, previous ... Source: Pollard, Thomas D.- Department of...

  9. Wind Power Plant Enhancement with a Fault-Current Limiter: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Gevorgian, V.; DeLaRosa, F.

    2011-03-01T23:59:59.000Z

    This paper investigates the capability of a saturable core fault-current limiter to limit the short circuit current of different types of wind turbine generators.

  10. Pushing The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscop...

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

    The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscopy: From Monolayer Towards Single molecule sensitivity. Pushing The Sample-Size Limit Of Infrared Vibrational...

  11. E-Print Network 3.0 - acres international limited Sample Search...

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

    's performance 1. Due to the inherent bandwidth limitation in wireless cellular networks, micropico cellular... is limited by the MS' dwell time in the overlapping area....

  12. Investigation of Microscopic Materials Limitations of Superconducting RF Cavities

    SciTech Connect (OSTI)

    Anlage, Steven [University of Maryland

    2014-07-23T23:59:59.000Z

    The high-field performance of SRF cavities is often limited by breakdown events below the intrinsic limiting surface fields of Nb, and there is abundant evidence that these breakdown events are localized in space inside the cavity. Also, there is a lack of detailed understanding of the causal links between surface treatments and ultimate RF performance at low temperatures. An understanding of these links would provide a clear roadmap for improvement of SRF cavity performance, and establish a cause-and-effect ‘RF materials science’ of Nb. We propose two specific microscopic approaches to addressing these issues. First is a spatially-resolved local microwave-microscope probe that operates at SRF frequencies and temperatures to discover the microscopic origins of breakdown, and produce quantitative measurements of RF critical fields of coatings and films. Second, RF Laser Scanning Microscopy (LSM) has allowed visualization of RF current flow and sources of nonlinear RF response in superconducting devices with micro-meter spatial resolution. The LSM will be used in conjunction with surface preparation and characterization techniques to create definitive links between physical and chemical processing steps and ultimate cryogenic microwave performance. We propose to develop RF laser scanning microscopy of small-sample Nb pieces to establish surface-processing / RF performance relations through measurement of RF current distributions on micron-length scales and low temperatures.

  13. The optimal bound of quantum erasure with limited means

    E-Print Network [OSTI]

    Filippo M. Miatto; Kevin Piché; Thomas Brougham; Robert W. Boyd

    2014-10-08T23:59:59.000Z

    In practical applications of quantum information science, quantum systems can have non-negligible interactions with the environment, and this generally degrades the power of quantum protocols as it introduces noise. Counteracting this by appropriately measuring the environment (and therefore projecting its state) would require access all the necessary degrees of freedom, which in practice can be far too hard to achieve. To better understand one's limitations, we calculate the upper bound of optimal quantum erasure (i.e. the highest recoverable visibility, or "coherence"), when erasure is realistically limited to an accessible subspace of the whole environment. In the particular case of a two-dimensional accessible environment, the bound is given by the sub-fidelity of two particular states of the \\emph{inaccessible} environment, which opens a new window into understanding the connection between correlated systems. We also provide an analytical solution for a three-dimensional accessible environment. This result provides also an interesting operational interpretation of sub-fidelity. We end with a statistical analysis of the expected visibility of an optimally erased random state and we find that 1) if one picks a random pure state of 2 qubits, there is an optimal measurement that allows one to distill a 1-qubit state with almost 90\\% visibility and 2) if one picks a random pure state of 2 qubits in an inaccessible environment, there is an optimal measurement that allows one to distill a 1-qubit state with almost twice its initial visibility.

  14. An optically trapped mirror for reaching the standard quantum limit

    E-Print Network [OSTI]

    Nobuyuki Matsumoto; Yuta Michimura; Yoichi Aso; Kimio Tsubono

    2014-05-19T23:59:59.000Z

    The preparation of a mechanical oscillator driven by quantum back-action is a fundamental requirement to reach the standard quantum limit (SQL) for force measurement, in optomechanical systems. However, thermal fluctuating force generally dominates a disturbance on the oscillator. In the macroscopic scale, an optical linear cavity including a suspended mirror has been used for the weak force measurement, such as gravitational-wave detectors. This configuration has the advantages of reducing the dissipation of the pendulum (i.e., suspension thermal noise) due to a gravitational dilution by using a thin wire, and of increasing the circulating laser power. However, the use of the thin wire is weak for an optical torsional anti-spring effect in the cavity, due to the low mechanical restoring force of the wire. Thus, there is the trade-off between the stability of the system and the sensitivity. Here, we describe using a triangular optical cavity to overcome this limitation for reaching the SQL. The triangular cavity can provide a sensitive and stable system, because it can optically trap the mirror's motion of the yaw, through an optical positive torsional spring effect. To show this, we demonstrate a measurement of the torsional spring effect caused by radiation pressure forces.

  15. Superconducting fault current-limiter with variable shunt impedance

    DOE Patents [OSTI]

    Llambes, Juan Carlos H; Xiong, Xuming

    2013-11-19T23:59:59.000Z

    A superconducting fault current-limiter is provided, including a superconducting element configured to resistively or inductively limit a fault current, and one or more variable-impedance shunts electrically coupled in parallel with the superconducting element. The variable-impedance shunt(s) is configured to present a first impedance during a superconducting state of the superconducting element and a second impedance during a normal resistive state of the superconducting element. The superconducting element transitions from the superconducting state to the normal resistive state responsive to the fault current, and responsive thereto, the variable-impedance shunt(s) transitions from the first to the second impedance. The second impedance of the variable-impedance shunt(s) is a lower impedance than the first impedance, which facilitates current flow through the variable-impedance shunt(s) during a recovery transition of the superconducting element from the normal resistive state to the superconducting state, and thus, facilitates recovery of the superconducting element under load.

  16. Limitations and Opportunities of Off-Shell Coupling Measurements

    E-Print Network [OSTI]

    Christoph Englert; Michael Spannowsky

    2014-08-28T23:59:59.000Z

    Indirect constraints on the total Higgs width $\\Gamma_h$ from correlating Higgs signal strengths with cross section measurements in the off-shell region for $p(g)p(g)\\to 4\\ell$ production have received considerable attention recently, and the CMS collaboration have published a first measurement. We revisit this analysis from a new physics and unitarity constraints perspective and conclude that limits on $\\Gamma_h$ obtained in this fashion are not reliable unless we make model-specific assumptions, which cannot be justified at the current stage of the LHC programme. Relaxing the $\\Gamma_h$ interpretation, we discuss the merits of high invariant mass cross section measurements in the context of Higgs CP analyses, higher dimensional operator testing, and resolved new physics in the light of electroweak precision constraints beyond effective theory limitations. Furthermore, we show that a rather model-independent LHC constraint can be obtained from adapting the $gg\\to 4\\ell$ analysis to the weak boson fusion channels at lower statistical yield.

  17. Strain-Based Acceptance Criteria for Energy-Limited Events

    SciTech Connect (OSTI)

    Spencer D. Snow; Dana K. Morton

    2009-07-01T23:59:59.000Z

    The American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (B&PV) Code was primarily written with stress-based acceptance criteria. These criteria are applicable to force, displacement, and energy-controlled loadings and ensure a factor of safety against failure. However, stress-based acceptance criteria are often quite conservative for one time energy-limited events such as accidental drops and impacts. For several years, the ASME Working Group on Design of Division 3 Containments has been developing the Design Articles for Section III, Division 3, “Containments for Transportation and Storage of Spent Nuclear Fuel and High-Level Radioactive Material and Waste,” and has wanted to establish strain-based acceptance criteria for accidental drops of containments. This Division 3 working group asked the Working Group on Design Methodology (WGDM) to assist in developing these strain-based acceptance criteria. This paper discusses the current proposed strain-based acceptance criteria, associated limitations of use, its background development, and the current status.

  18. Deep Linguistic Processing with Condor Feng Niu, Christopher R, and Ce Zhang

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    . Today's talk, demos. #12;What about Barack Obama? · wife is Michelle Obama · went to Harvard Law School, and the Condor and CHTC Teams #12;15 #12;What about Barack Obama? · wife is Michelle Obama · went to Harvard Law: What is the carbon record of North America? #12;Demo: AncientText ¤ Help Robin Valenza, Assoc. Prof

  19. SKATE: Decoupling Systematic Sampling From Scoring JIANWEN A. FENG, GARLAND R. MARSHALL

    E-Print Network [OSTI]

    Marshall, Garland R.

    . Efficient systematic sam- pling is achieved by pruning the combinatorial tree using aggregate assembly, the energy functions are simplified so that they can be evaluated quickly. The tradeoff is a less accurate energy function that at best approximates the binding energy of a pose. If a coarse energy function

  20. RFID-Based 3-D Positioning Schemes Chong Wang, Hongyi Wu, and Nian-Feng Tzeng

    E-Print Network [OSTI]

    Wu, Hongyi

    the coupling unit. The active RFID tag is powered by an internal battery and its data can typically be rewritten. The battery supply gives active tags a longer read range. But such a tag exhibits a larger size. For example, the readers may be deployed in strategic locations in a ware- house or workshops. When an object

  1. Soft capacitor fibers for electronic textiles Jian Feng Gu, Stephan Gorgutsa, and Maksim Skorobogatiya

    E-Print Network [OSTI]

    Skorobogatiy, Maksim

    attention due to their potential applications in energy harnessing,4 heat-storage, and thermoregulated-based fiber with high electric capacitance is reported. The fiber is fabricated using fiber drawing method to the environmental stimuli of electrical, mechanical, thermal, and chemical nature. Smart textiles originally emerged

  2. Cognitive Components of Speech at Different Time Scales Ling Feng (lf@imm.dtu.dk)

    E-Print Network [OSTI]

    representation. Our hypothesis is now basi- cally ecological: We hypothesize that features that are essen- tially of the ecology, the process of natural selection, and learning. Robust statistical regularities will be exploited producing processes. The optimized representations for low level perception are indeed based on independence

  3. Tuning nucleation density of metal island with charge doping of graphene Wenmei Ming and Feng Liua)

    E-Print Network [OSTI]

    Simons, Jack

    increase both Fe-adatom diffusion barrier and Fe inter- adatom repulsion energy occurring at intermediate separation, whereas electron-doping can decrease Fe-adatom diffusion barrier but only slightly modify inter­10 which are strongly related to the bonding involving orbital hybridization and charge transfer between

  4. Piezoelectric nanogenerator using CdS nanowires Yi-Feng Lin,1,2

    E-Print Network [OSTI]

    Wang, Zhong L.

    different processes: hydrothermal and physical vapor deposition PVD . The NWs obtained from the hydrothermal . The hydrothermal process followed the procedures of reported in literature with minor modifications.11 Cd foils process were composed of alternating hexagonal wurtzite WZ and cubic zinc blende ZB phases with growth

  5. Partial list: N.J. Balmforth,I. Friggard, J. Feng

    E-Print Network [OSTI]

    Kuske, Rachel

    . Ward, R. Kuske,A. Peirce, D. Schoetzau, B. Wetton U. Ascher, M. Friedlander, C. Greif, F. Herrmann, O waves of increased calcium is generated. Stricker (1996) Del. Biol. (nemertean worm egg) Waves

  6. REAL TIME HARDWARE-IN-THE-LOOPVEHICLE Sheran Alles, Curtis Swick', Syed Mahmud, Feng Lin

    E-Print Network [OSTI]

    Mahmud, Syed Masud

    and the advantages of the HITL simulation design. 2.0 SYSTEM DESCRIPTION In this section a brief description developed was for a port fuel injected engine, wall wetting can be neglected. Although an important phase of a vehicle is starting the engine in cold conditions, our specific application (at this time) was for warm

  7. Study on the hydraulic conductivity of Boom clay1 Yong-Feng Deng1, 2

    E-Print Network [OSTI]

    Boyer, Edmond

    , Transportation College,5 Nanjing, China6 2 Ecole des Ponts ParisTech, Navier/CERMES, Marne-la-Vallée, France7 3 Introduction1 Boom clay is a thick deposit of over-consolidated marine clay, of Oligocene age. It can be2 found for its performance assessment for the deep geological disposal of4 high-level radioactive waste. Recently

  8. Identifying anomalous diffusion and melting in dusty plasmas Yan Feng,* J. Goree, and Bin Liu

    E-Print Network [OSTI]

    Goree, John

    is deter- mined by the balance of the energy input and dissipation. As the driven energy input increases Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242, USA Received 3 June 2010 described as 2D experiments 1,4­8 . Dusty plasma is a driven-dissipative system 1 , and its kinetic energy

  9. Probabilistic cloning and deleting of quantum states Yuan Feng, Shengyu Zhang, and Mingsheng Ying*

    E-Print Network [OSTI]

    Zhang, Shengyu

    , deleting unknown quantum states was also found to be impossible, where ``deleting'' means ``uncopy- ing

  10. Panalyst: Privacy-Aware Remote Error Analysis on Commodity Software , XiaoFeng Wang

    E-Print Network [OSTI]

    Wang, XiaoFeng

    of this technique demonstrates that it exposes a very small amount of user information, introduces neg- ligible of critical se- curity flaws that can be exploited to launch a large-scale cyber attack such as Worm epidemic]. To reduce information leaks, er- ror reporting systems usually only collect a small amount of information

  11. An Annotated Corpus of Typical Durations of Events Feng Pan, Rutu Mulkar, and Jerry R. Hobbs

    E-Print Network [OSTI]

    Hobbs, Jerry R.

    read the sentence, "George W. Bush met with Vladimir Putin in Moscow." We don't know exactly how long

  12. Learning Event Durations from Event Descriptions Feng Pan, Rutu Mulkar, and Jerry R. Hobbs

    E-Print Network [OSTI]

    Hobbs, Jerry R.

    article: George W. Bush met with Vladimir Putin in Moscow. How long was the meeting? Our first reaction

  13. Feng Xue | Center for Gas SeparationsRelevant to Clean Energy Technologies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCI Home It isGasERPSpun OffTechnologies| Blandine

  14. RSVM: a Region-based Software Virtual Memory Feng Ji, Heshan Lin, Xiaosong Ma

    E-Print Network [OSTI]

    Ma, Xiaosong

    directed acyclic graphs [26], or achieve on-demand data fetching only from the host side [14]. We envision is still difficult, due to, particularly, explicitly managed GPU memory and manual CPU-GPU data transfer. Despite recent calls for managing GPU resources as first-class citizens in the operating system, a mature

  15. Toward Securing Sensor Clouds Apu Kapadia, Steven Myers, XiaoFeng Wang and Geoffrey Fox

    E-Print Network [OSTI]

    and managing sensor data. Recently, we have made the first step towards building a practical sensor cloud) Defense against the side-channel analysis on the Software-as-a-Service infrastructure. KEYWORDS: 1 the demand for effective processing of the large amounts of data they collect. This demand can only be met

  16. SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY

    E-Print Network [OSTI]

    SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY By Marta Lewicka Maria that the elastic energy of defor- mations scales like h4, h being the thickness of a shell, we derive a limiting dimensional limit energies. In this paper we discuss shell theories arising as -limits of higher scalings

  17. OIKOS 104: 109121, 2004 Size-dependent resource limitation and foraging-predation risk

    E-Print Network [OSTI]

    Roos, André M. de

    OIKOS 104: 109­121, 2004 Size-dependent resource limitation and foraging-predation risk trade-yr old char were resource limited and, if so, whether resource limitation was associated with habitat variation in YOY densities between lakes. Model results suggested that density dependent resource limitation

  18. Constraints, limits and extensions for nuclear energy functionals

    E-Print Network [OSTI]

    G. Colo'

    2009-02-21T23:59:59.000Z

    In the present contribution, we discuss the behavior of Skyrme forces when they are employed to study both neutron stars and giant resonance states in 208Pb within the fully self-consistent Random Phase Approximation (RPA). We point out that clear correlations exist between the results for the isoscalar monopole and isovector dipole resonances (ISGMR and IVGDR), and definite quantities which characterize the equation of state (EOS) of uniform matter. We propose that the RPA results or, to some extent, the mentioned EOS parameters, are used as constraints when a force is fitted. This suggestion can be valid also when the fit of a more general energy density functional is envisaged. We use our considerations to select a limited number of Skyrme forces (10) out of a large sample of 78 interactions.

  19. BAYESIAN INSIGHTS ON DISCLOSURE LIMITATION: MASK OR IMPUTE?

    SciTech Connect (OSTI)

    S. KELLER-MCNULTY; G. DUNCAN

    2000-10-01T23:59:59.000Z

    Statistical agencies seek to disseminate useful data while keeping low the risk of statistical confidentiality disclosure. Recognizing that reidentification of data is generally inadequate to protect its confidentiality against attack by a data snooper, agencies restrict the data they release for general use. Typically, these restricted data procedures have involved transformation or masking of the original, collected data through such devices as adding noise, topcoding, data swapping, and recoding. Recently, proposals have been put forth for the release of synthetic data, simulated from models constructed from the original data. This paper gives a framework for the comparison of masking and synthetic data as two approaches to disclosure limitation. Particular attention is paid to data utility and disclosure risk. Examples of instantiation of masking and of synthetic data construction are provided to illustrate the concepts. Particular attention is paid to data swapping. Insights drawn from the Bayesian paxadigm are provided.

  20. Private Database Queries Using Quantum States with Limited Coherence Times

    E-Print Network [OSTI]

    Tad Hogg; Li Zhang

    2009-03-31T23:59:59.000Z

    We describe a method for private database queries using exchange of quantum states with bits encoded in mutually incompatible bases. For technology with limited coherence time, the database vendor can announce the encoding after a suitable delay to allow the user to privately learn one of two items in the database without the ability to also definitely infer the second item. This quantum approach also allows the user to choose to learn other functions of the items, such as the exclusive-or of their bits, but not to gain more information than equivalent to learning one item, on average. This method is especially useful for items consisting of a few bits by avoiding the substantial overhead of conventional cryptographic approaches.

  1. Quantum Limits of Interferometer Topologies for Gravitational Radiation Detection

    E-Print Network [OSTI]

    Haixing Miao; Huan Yang; Rana X Adhikari; Yanbei Chen

    2014-06-09T23:59:59.000Z

    In order to expand the astrophysical reach of gravitational wave detectors, several interferometer topologies have been proposed to evade the thermodynamic and quantum mechanical limits in future detectors. In this work, we make a systematic comparison among them by considering their sensitivities and complexities. We numerically optimize their sensitivities by introducing a cost function that tries to maximize the broadband improvement over the sensitivity of current detectors. We find that frequency-dependent squeezed-light injection with a hundred-meter scale filter cavity yields a good broadband sensitivity, with low complexity, and good robustness against optical loss. This study gives us a guideline for the near-term experimental research programs in enhancing the performance of future gravitational-wave detectors.

  2. The Energy Transformation Limit Theorem for Gas Flow Systems

    E-Print Network [OSTI]

    Volov, V T

    2011-01-01T23:59:59.000Z

    The limit energy theorem which determines the possibility of transformation the energy flow in power systems in the absence of technical work is investigated and proved for such systems as gas lasers and plasmatrons, chemical gas reactors, vortex tubes, gas-acoustic and other systems, as well as a system of close stars. In the case of the same name ideal gas in the system the maximum ratio of energy conversion effectiveness is linked to the Carnot theorem, which in its turn is connected with the Nernst theorem. However, numerical analyses show that the class of flow energy systems is non-carnot one. The ratio of energy conversion effectiveness depends on the properties of the working medium; a conventional cycle in open-circuit is essentially irreversible. The proved theorem gives a more strongly worded II law of thermodynamics for the selected class of flow energy systems. Implications for astrophysical thermodynamic systems and the theory of a strong shock wave are discussed.

  3. Enhanced optical limiting effects of graphene materials in polyimide

    SciTech Connect (OSTI)

    Gan, Yao; Feng, Miao; Zhan, Hongbing, E-mail: hbzhan@fzu.edu.cn [College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108 (China)

    2014-04-28T23:59:59.000Z

    Three different graphene nanostructure suspensions of graphene oxide nanosheets (GONSs), graphene oxide nanoribbons (GONRs), and graphene oxide quantum dots (GOQDs) are prepared and characterized. Using a typical two-step method, the GONSs, GONRs, and GOQDs are incorporated into a polyimide (PI) matrix to synthesize graphene/PI composite films, whose nonlinear optical (NLO) and optical limiting (OL) properties are investigated at 532?nm in the nanosecond regime. The GONR suspension exhibits superior NLO and OL effects compared with those of GONSs and GOQDs because of its stronger nonlinear scattering and excited-state absorption. The graphene/PI composite films exhibit NLO and OL performance superior to that of their corresponding suspensions, which is attributed primarily to a combination of nonlinear mechanisms, charge transfer between graphene materials and PI, and the matrix effect.

  4. On the teleparallel limit of Poincare gauge theory

    E-Print Network [OSTI]

    M. Leclerc

    2005-01-11T23:59:59.000Z

    We will address the question of the consistency of teleparallel theories in presence of spinning matter which has been a controversial subject of discussion over the last twenty years. We argue that the origin of the problem is not simply the symmetry or asymmetry of the stress-energy tensor of the matter fields, which has been recently analyzed by several authors, but arises at a more fundamental level, namely from the invariance of the field equatins under a frame change, a problem that has been discussed long time ago by Kopczynski in the framework of the teleparallel equivalent of general relativity. More importantly, we show that the problem is not only confined to the purely teleparallel theory but arises actually in every Poincare gauge theory that admits a teleparallel geometry in the absence of spinning sources, i.e. in its classical limit.

  5. Quantum resources for purification and cooling: fundamental limits and opportunities

    E-Print Network [OSTI]

    Francesco Ticozzi; Lorenza Viola

    2014-03-31T23:59:59.000Z

    Preparing a quantum system in a pure state is ultimately limited by the nature of the system's evolution in the presence of its environment and by the initial state of the environment itself. We show that, when the system and environment are initially uncorrelated and arbitrary joint unitary dynamics is allowed, the system may be purified up to a certain (possibly arbitrarily small) threshold if and only if its environment, either natural or engineered, contains a "virtual subsystem" which has the same dimension and is in a state with the desired purity. Beside providing a unified understanding of quantum purification dynamics in terms of a "generalized swap process," our results shed light on the significance of a no-go theorem for exact ground-state cooling, as well as on the quantum resources needed for achieving an intended purification task.

  6. Implementation impacts of PRL methodology. [PRL (Plutonium Recovery Limit)

    SciTech Connect (OSTI)

    Caudill, J.A.; Krupa, J.F.; Meadors, R.E.; Odum, J.V.; Rodrigues, G.C.

    1993-02-01T23:59:59.000Z

    This report responds to a DOE-SR request to evaluate the impacts from implementation of the proposed Plutonium Recovery Limit (PRL) methodology. The PRL Methodology is based on cost minimization for decisions to discard or recover plutonium contained in scrap, residues, and other plutonium bearing materials. Implementation of the PRL methodology may result in decisions to declare as waste certain plutonium bearing materials originally considered to be a recoverable plutonium product. Such decisions may have regulatory impacts, because any material declared to be waste would immediately be subject to provisions of the Resource Conservation and Recovery Act (RCRA). The decision to discard these materials will have impacts on waste storage, treatment, and disposal facilities. Current plans for the de-inventory of plutonium processing facilities have identified certain materials as candidates for discard based upon the economic considerations associated with extending the operating schedules for recovery of the contained plutonium versus potential waste disposal costs. This report evaluates the impacts of discarding those materials as proposed by the F Area De-Inventory Plan and compares the De-Inventory Plan assessments with conclusions from application of the PRL. The impact analysis was performed for those materials proposed as potential candidates for discard by the De-Inventory Plan. The De-Inventory Plan identified 433 items, containing approximately 1% of the current SRS Pu-239 inventory, as not appropriate for recovery as the site moves to complete the mission of F-Canyon and FB-Line. The materials were entered into storage awaiting recovery as product under the Department's previous Economic Discard Limit (EDL) methodology which valued plutonium at its incremental cost of production in reactors. An application of Departmental PRLs to the subject 433 items revealed that approximately 40% of them would continue to be potentially recoverable as product plutonium.

  7. Current parallel I/O limitations to scalable data analysis.

    SciTech Connect (OSTI)

    Mascarenhas, Ajith Arthur; Pebay, Philippe Pierre

    2011-07-01T23:59:59.000Z

    This report describes the limitations to parallel scalability which we have encountered when applying our otherwise optimally scalable parallel statistical analysis tool kit to large data sets distributed across the parallel file system of the current premier DOE computational facility. This report describes our study to evaluate the effect of parallel I/O on the overall scalability of a parallel data analysis pipeline using our scalable parallel statistics tool kit [PTBM11]. In this goal, we tested it using the Jaguar-pf DOE/ORNL peta-scale platform on a large combustion simulation data under a variety of process counts and domain decompositions scenarios. In this report we have recalled the foundations of the parallel statistical analysis tool kit which we have designed and implemented, with the specific double intent of reproducing typical data analysis workflows, and achieving optimal design for scalable parallel implementations. We have briefly reviewed those earlier results and publications which allow us to conclude that we have achieved both goals. However, in this report we have further established that, when used in conjuction with a state-of-the-art parallel I/O system, as can be found on the premier DOE peta-scale platform, the scaling properties of the overall analysis pipeline comprising parallel data access routines degrade rapidly. This finding is problematic and must be addressed if peta-scale data analysis is to be made scalable, or even possible. In order to attempt to address these parallel I/O limitations, we will investigate the use the Adaptable IO System (ADIOS) [LZL+10] to improve I/O performance, while maintaining flexibility for a variety of IO options, such MPI IO, POSIX IO. This system is developed at ORNL and other collaborating institutions, and is being tested extensively on Jaguar-pf. Simulation code being developed on these systems will also use ADIOS to output the data thereby making it easier for other systems, such as ours, to process that data.

  8. Peak Dose Assessment for Proposed DOE-PPPO Authorized Limits

    SciTech Connect (OSTI)

    Maldonado, Delis [Oak Ridge Institute for Science and Education, Oak Ridge, TN (United States). Independent Environmental Assessment and Verification Program

    2012-06-01T23:59:59.000Z

    The Oak Ridge Institute for Science and Education (ORISE), a U.S. Department of Energy (DOE) prime contractor, was contracted by the DOE Portsmouth/Paducah Project Office (DOE-PPPO) to conduct a peak dose assessment in support of the Authorized Limits Request for Solid Waste Disposal at Landfill C-746-U at the Paducah Gaseous Diffusion Plant (DOE-PPPO 2011a). The peak doses were calculated based on the DOE-PPPO Proposed Single Radionuclides Soil Guidelines and the DOE-PPPO Proposed Authorized Limits (AL) Volumetric Concentrations available in DOE-PPPO 2011a. This work is provided as an appendix to the Dose Modeling Evaluations and Technical Support Document for the Authorized Limits Request for the C-746-U Landfill at the Paducah Gaseous Diffusion Plant, Paducah, Kentucky (ORISE 2012). The receptors evaluated in ORISE 2012 were selected by the DOE-PPPO for the additional peak dose evaluations. These receptors included a Landfill Worker, Trespasser, Resident Farmer (onsite), Resident Gardener, Recreational User, Outdoor Worker and an Offsite Resident Farmer. The RESRAD (Version 6.5) and RESRAD-OFFSITE (Version 2.5) computer codes were used for the peak dose assessments. Deterministic peak dose assessments were performed for all the receptors and a probabilistic dose assessment was performed only for the Offsite Resident Farmer at the request of the DOE-PPPO. In a deterministic analysis, a single input value results in a single output value. In other words, a deterministic analysis uses single parameter values for every variable in the code. By contrast, a probabilistic approach assigns parameter ranges to certain variables, and the code randomly selects the values for each variable from the parameter range each time it calculates the dose (NRC 2006). The receptor scenarios, computer codes and parameter input files were previously used in ORISE 2012. A few modifications were made to the parameter input files as appropriate for this effort. Some of these changes included increasing the time horizon beyond 1,050 years (yr), and using the radionuclide concentrations provided by the DOE-PPPO as inputs into the codes. The deterministic peak doses were evaluated within time horizons of 70 yr (for the Landfill Worker and Trespasser), 1,050 yr, 10,000 yr and 100,000 yr (for the Resident Farmer [onsite], Resident Gardener, Recreational User, Outdoor Worker and Offsite Resident Farmer) at the request of the DOE-PPPO. The time horizons of 10,000 yr and 100,000 yr were used at the request of the DOE-PPPO for informational purposes only. The probabilistic peak of the mean dose assessment was performed for the Offsite Resident Farmer using Technetium-99 (Tc-99) and a time horizon of 1,050 yr. The results of the deterministic analyses indicate that among all receptors and time horizons evaluated, the highest projected dose, 2,700 mrem/yr, occurred for the Resident Farmer (onsite) at 12,773 yr. The exposure pathways contributing to the peak dose are ingestion of plants, external gamma, and ingestion of milk, meat and soil. However, this receptor is considered an implausible receptor. The only receptors considered plausible are the Landfill Worker, Recreational User, Outdoor Worker and the Offsite Resident Farmer. The maximum projected dose among the plausible receptors is 220 mrem/yr for the Outdoor Worker and it occurs at 19,045 yr. The exposure pathways contributing to the dose for this receptor are external gamma and soil ingestion. The results of the probabilistic peak of the mean dose analysis for the Offsite Resident Farmer indicate that the average (arithmetic mean) of the peak of the mean doses for this receptor is 0.98 mrem/yr and it occurs at 1,050 yr. This dose corresponds to Tc-99 within the time horizon of 1,050 yr.

  9. Stability limit of room air temperature of a VAV system

    SciTech Connect (OSTI)

    Matsuba, Tadahiko; Kamimura, Kazuyuki [Yamatake-Honeywell Co., Ltd., Tokyo (Japan). Building System Div.; Kasahara, Masato; Kimbara, Akiomi; Kurosu, Shigeru [Oyama National Coll. of Technology (Japan); Murasawa, Itaru; Hashimoto, Yukihiko [Tonets Corp., Tokyo (Japan). Engineering Project Dept.

    1998-12-31T23:59:59.000Z

    To control heating, ventilating, and air-conditioning (HVAC) systems, it has been necessary to accept an analog system controlled mainly by proportional-plus-integral-plus-derivative (PID) action. However, when conventional PID controllers are replaced with new digital controllers by selecting the same PID parameters as before, the control loops have often got into hunting phenomena, which result in undamped oscillations. Unstable control characteristics (such as huntings) are thought to be one of the crucial problems faced by field operators. The PID parameters must be carefully selected to avoid instabilities. In this study, a room space is simulated as a thermal system that is air-conditioned by a variable-air-volume (VAV) control system. A dynamic room model without infiltration or exfiltration, which is directly connected to a simple air-handling unit without an economizer, is developed. To explore the possible existence of huntings, a numerical system model is formulated as a bilinear system with time-delayed feedback, and a parametric analysis of the stability limit is presented. Results are given showing the stability region affected by the selection of control and system parameters. This analysis was conducted to help us tune the PID controllers for optimal HVAC control.

  10. Flow Analysis on a Limited Volume Chilled Water System

    SciTech Connect (OSTI)

    Zheng, Lin [Los Alamos National Laboratory

    2012-07-31T23:59:59.000Z

    LANL Currently has a limited volume chilled water system for use in a glove box, but the system needs to be updated. Before we start building our new system, a flow analysis is needed to ensure that there are no high flow rates, extreme pressures, or any other hazards involved in the system. In this project the piping system is extremely important to us because it directly affects the overall design of the entire system. The primary components necessary for the chilled water piping system are shown in the design. They include the pipes themselves (perhaps of more than one diameter), the various fitting used to connect the individual pipes to form the desired system, the flow rate control devices (valves), and the pumps that add energy to the fluid. Even the most simple pipe systems are actually quite complex when they are viewed in terms of rigorous analytical considerations. I used an 'exact' analysis and dimensional analysis considerations combined with experimental results for this project. When 'real-world' effects are important (such as viscous effects in pipe flows), it is often difficult or impossible to use only theoretical methods to obtain the desired results. A judicious combination of experimental data with theoretical considerations and dimensional analysis are needed in order to reduce risks to an acceptable level.

  11. Diffusion limited cluster aggregation with irreversible flexible bonds

    E-Print Network [OSTI]

    Sujin Babu; Jean-Christophe Gimel; Taco Nicolai

    2008-01-29T23:59:59.000Z

    Irreversible diffusion limited cluster aggregation (DLCA) of hard spheres was simulated using Brownian cluster dynamics. Bound spheres were allowed to move freely within a specified range, but no bond breaking was allowed. The structure and size distribution of the clusters was investigated before gelation. The pair correlation function and the static structure factor of the gels were determined as a function of the volume fraction and time. Bond flexibility led to local densification of the clusters and the gels, with a certain degree of order. At low volume fractions densification of the clusters occurred during their growth, but at higher volume fractions it occurred mainly after gelation. At very low volume fractions, the large scale structure (fractal dimension), size distribution and growth kinetics of the clusters was found to be close to that known for DLCA with rigid bonds. Restructuring of the gels continued for long times, indicating that aging processes in systems with strong attraction do not necessarily involve bond breaking. The mean square displacement of particles in the gels was determined. It is shown to be highly heterogeneous and to increase with decreasing volume fraction.

  12. Speed-of-light limitations in passive linear media

    E-Print Network [OSTI]

    Aaron Welters; Yehuda Avniel; Steven G. Johnson

    2014-05-01T23:59:59.000Z

    We prove that well-known speed of light restrictions on electromagnetic energy velocity can be extended to a new level of generality, encompassing even nonlocal chiral media in periodic geometries, while at the same time weakening the underlying assumptions to only passivity and linearity of the medium (either with a transparency window or with dissipation). As was also shown by other authors under more limiting assumptions, passivity alone is sufficient to guarantee causality and positivity of the energy density (with no thermodynamic assumptions). Our proof is general enough to include a very broad range of material properties, including anisotropy, bianisotropy (chirality), nonlocality, dispersion, periodicity, and even delta functions or similar generalized functions. We also show that the "dynamical energy density" used by some previous authors in dissipative media reduces to the standard Brillouin formula for dispersive energy density in a transparency window. The results in this paper are proved by exploiting deep results from linear-response theory, harmonic analysis, and functional analysis that had previously not been brought together in the context of electrodynamics.

  13. Message passing with a limited number of DMA byte counters

    DOE Patents [OSTI]

    Blocksome, Michael (Rochester, MN); Chen, Dong (Croton on Hudson, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Kumar, Sameer (White Plains, NY); Parker, Jeffrey J. (Rochester, MN)

    2011-10-04T23:59:59.000Z

    A method for passing messages in a parallel computer system constructed as a plurality of compute nodes interconnected as a network where each compute node includes a DMA engine but includes only a limited number of byte counters for tracking a number of bytes that are sent or received by the DMA engine, where the byte counters may be used in shared counter or exclusive counter modes of operation. The method includes using rendezvous protocol, a source compute node deterministically sending a request to send (RTS) message with a single RTS descriptor using an exclusive injection counter to track both the RTS message and message data to be sent in association with the RTS message, to a destination compute node such that the RTS descriptor indicates to the destination compute node that the message data will be adaptively routed to the destination node. Using one DMA FIFO at the source compute node, the RTS descriptors are maintained for rendezvous messages destined for the destination compute node to ensure proper message data ordering thereat. Using a reception counter at a DMA engine, the destination compute node tracks reception of the RTS and associated message data and sends a clear to send (CTS) message to the source node in a rendezvous protocol form of a remote get to accept the RTS message and message data and processing the remote get (CTS) by the source compute node DMA engine to provide the message data to be sent.

  14. Redshift Limits of BL Lacertae Objects from Optical Spectroscopy

    E-Print Network [OSTI]

    J. D. Finke; J. C. Shields; M. Boettcher; S. Basu

    2007-11-13T23:59:59.000Z

    Context: BL Lacertae objects have been the targets for numerous recent multiwavelength campaigns, continuum spectral variability studies, and theoretical spectral and variability modeling. A meaningful interpretation of the results of such studies requires a reliable knowledge of the objects' redshifts; however, the redshifts for many are still unknown or uncertain. Aims: Therefore, we hope to determine or constrain the redshifts of six BL Lac objects with unknown or poorly known redshifts. Methods: Observations were made of these objects with the MDM 2.4 m Hiltner telescope. Although no spectral features were detected, and thus no redshifts could be measured, lower redshift limits were assigned to the objects based on the expected equivalent widths of absorption features in their host galaxies. Redshifts were also estimated for some objects by assuming the host galaxies are standard candles and using host galaxy apparent magnitudes taken from the literature. Results: The commonly used redshift of $z=0.102$ for 1219+285 is almost certainly wrong, while the redshifts of the other objects studied remain undetermined.

  15. A New Limit on the Neutrinoless DBD of 130Te

    E-Print Network [OSTI]

    C. Arnaboldi; D. R. Artusa; F. T. Avignone III; M. Balata; I. Bandac; M. Barucci; J. W. Beeman; C. Brofferio; C. Bucci; S. Capelli; L. Carbone; S. Cebrian; O. Cremonesi; R. J. Creswick; A. de Waard; H. A. Farach; E. Fiorini; G. Frossati; E. Guardincerri; A. Giuliani; P. Gorla; E. E. Haller; J. McDonald; E. B. Norman; A. Nucciotti; E. Olivieri; M. Pallavicini; E. Palmieri; E. Pasca; M. Pavan; M. Pedretti; G. Pessina; S. Pirro; E. Previtali; L. Risegari; C. Rosenfeld; S. Sangiorgio; M. Sisti; A. R. Smith; L. Torres; G. Ventura

    2005-01-13T23:59:59.000Z

    We report the present results of CUORICINO a cryogenic experiment on neutrinoless double beta decay (DBD) of 130Te consisting of an array of 62 crystals of TeO2 with a total active mass of 40.7 kg. The array is framed inside of a dilution refrigerator, heavily shielded against environmental radioactivity and high-energy neutrons, and operated at a temperature of ~8 mK in the Gran Sasso Underground Laboratory. Temperature pulses induced by particle interacting in the crystals are recorded and measured by means of Neutron Transmutation Doped thermistors. The gain of each bolometer is stabilized with voltage pulses developed by a high stability pulse generator across heater resistors put in thermal contact with the absorber. The calibration is performed by means of two thoriated wires routinely inserted in the set-up. No evidence for a peak indicating neutrinoless DBD of 130Te is detected and a 90% C.L. lower limit of 1.8E24 years is set for the lifetime of this process. Taking largely into account the uncertainties in the theoretical values of nuclear matrix elements, this implies an upper boud on the effective mass of the electron neutrino ranging from 0.2 to 1.1 eV. This sensitivity is similar to those of the 76Ge experiments.

  16. Quantum Apices: Identifying Limits of Entanglement, Nonlocality, & Contextuality

    E-Print Network [OSTI]

    Elie Wolfe

    2014-09-08T23:59:59.000Z

    This work develops analytic methods to quantitatively demarcate quantum reality from its subset of classical phenomenon, as well as from the superset of general probabilistic theories. Regarding quantum nonlocality, we discuss how to determine the quantum limit of Bell-type linear inequalities. In contrast to semidefinite programming approaches, our method allows for the consideration of inequalities with abstract weights, by means of leveraging the Hermiticity of quantum states. Recognizing that classical correlations correspond to measurements made on separable states, we also introduce a practical method for obtaining sufficient separability criteria. We specifically vet the candidacy of driven and undriven superradiance as schema for entanglement generation. We conclude by reviewing current approaches to quantum contextuality, emphasizing the operational distinction between nonlocal and contextual quantum statistics. We utilize our abstractly-weighted linear quantum bounds to explicitly demonstrate a set of conditional probability distributions which are simultaneously compatible with quantum contextuality while being incompatible with quantum nonlocality. It is noted that this novel statistical regime implies an experimentally-testable target for the Consistent Histories theory of quantum gravity.

  17. Innovative Feed-In Tariff Designs that Limit Policy Costs

    SciTech Connect (OSTI)

    Kreycik, C.; Couture, T. D.; Cory, K. S.

    2011-06-01T23:59:59.000Z

    Feed-in tariffs (FITs) are the most prevalent renewable energy policy used globally to date, and there are many benefits to the certainty offered in the marketplace to reduce development risks and associated financing costs and to grow the renewable energy industry. However, concerns over escalating costs in jurisdictions with FIT policies have led to increased attention on cost control in renewable energy policy design. In recent years, policy mechanisms for containing FIT costs have become more refined, allowing policymakers to exert greater control on policy outcomes and on the resulting costs to ratepayers. As policymakers and regulators in the United States begin to explore the use of FITs, careful consideration must be given to the ways in which policy design can be used to balance the policies' advantages while bounding its costs. This report explores mechanisms that policymakers have implemented to limit FIT policy costs. If designed clearly and transparently, such mechanisms can align policymaker and market expectations for project deployment. Three different policy tools are evaluated: (1) caps, (2) payment level adjustment mechanisms, and (3) auction-based designs. The report employs case studies to explore the strengths and weaknesses of these three cost containment tools. These tools are then evaluated with a set of criteria including predictability for policymakers and the marketplace and the potential for unintended consequences.

  18. Robust Limits on Lorentz Violation from Gamma-Ray Bursts

    E-Print Network [OSTI]

    John Ellis; Nick E. Mavromatos; Dimitri V. Nanopoulos; Alexander S. Sakharov; Edward K. G. Sarkisyan

    2005-10-06T23:59:59.000Z

    We constrain the possibility of a non-trivial refractive index in free space corresponding to an energy-dependent velocity of light: c(E) \\simeq c_0 (1 - E/M), where M is a mass scale that might represent effect of quantum-gravitational space-time foam, using the arrival times of sharp features observed in the intensities of radiation with different energies from a large sample of gamma-ray bursters (GRBs) with known redshifts. We use wavelet techniques to identify genuine features, which we confirm in simulations with artificial added noise. Using the weighted averages of the time-lags calculated using correlated features in all the GRB light curves, we find a systematic tendency for more energetic photons to arrive earlier. However, there is a very strong correlation between the parameters characterizing an intrinsic time-lag at the source and a distance-dependent propagation effect. Moreover, the significance of the earlier arrival times is less evident for a subsample of more robust spectral structures. Allowing for intrinsic stochastic time-lags in these features, we establish a statistically robust lower limit: M > 0.9x10^{16} GeV on the scale of violation of Lorentz invariance.

  19. Can the Operating Leaves of a Distillation Column Really Be Tshepo S. Modise, Michaela Tapp, Diane Hildebrandt,* and David Glasser

    E-Print Network [OSTI]

    Skogestad, Sigurd

    to infinity. All column profiles shown in this paper have been generated using the NRTL model at a system

  20. A review of "Poetry and Ecology in the Age of Milton and Marvell" by Diane Kelsey McColley

    E-Print Network [OSTI]

    Jordan, Nicolle

    2009-01-01T23:59:59.000Z

    reviews 33 1840s, by Michael McCann of Galway and evidently first published under the title, ?The Clan Connell War Song? in The Nation, January 1843. A copy of the tune in broadsheet format may be viewed at http...://www.nls.uk/broadsides/broadside.cfm/id/15846/criteria/ donnell. This reviewer is grateful to Eoin Shalloo, Curator, Rare Book Collections, National Library of Scotland, for prompt and generous information on this matter. John McCavitt has further plans for the Flight of the Earls: a play...

  1. Diane B. Ginsburg, M.S., R.Ph., FASHP Clinical Professor, Assistant Dean for Student Affairs, &

    E-Print Network [OSTI]

    Tipple, Brett

    in the way they approach Work Worklife balance Employee loyalty Authority #12;Generational Issues A lack Energy Crisis, PC's, Computer Gaming, Reagan era, Berlin Wall falling, Challenger Disaster, Rodney King Y aka "Millennials" Formative Lifetime Events Oklahoma City Bombing, Clinton/Lewinsky scandal

  2. COMMUNICATIONS OF THE ACM December 2004/Vol. 47, No. 12 41 By Bonnie A. Nardi, Diane J. Schiano,

    E-Print Network [OSTI]

    Nardi, Bonnie

    -educated, middle-class adults in school or employed in knowledge work or artistic pursuits. We developed the sample investi- gation of blogging in a sample of ordinary bloggers. We investi- gated blogging as a form conversational in style but covered a fixed set of questions about the informants' blogs, blogging habits

  3. Regression Based Investigation of Pumping Limits and Springflow Within the Edwards Aquifer

    E-Print Network [OSTI]

    McCarl, Bruce A.

    Regression Based Investigation of Pumping Limits and Springflow Within the Edwards Aquifer K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A Model to Study the Effects of Pumping Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Investigation of the Effects of Pumping Allocations on Springflow

  4. Enforcement Guidance Supplement 99-03: Limitation of 10 CFR Part...

    Office of Environmental Management (EM)

    : Limitation of 10 CFR Part 830 to Equipment Referenced in the Safety Analysis Report Enforcement Guidance Supplement 99-03: Limitation of 10 CFR Part 830 to Equipment Referenced...

  5. Enforcement Guidance Supplement 99-03 Limitation of 10 CFR Part...

    Office of Environmental Management (EM)

    Limitation of 10 CFR Part 830 to Equipment Referenced in theSafety Analysis Report Enforcement Guidance Supplement 99-03 Limitation of 10 CFR Part 830 to Equipment Referenced in...

  6. Absolute vs. Intensity Limits for CO2 Emission Control: Performance Under Uncertainty

    E-Print Network [OSTI]

    Sue Wing, Ian.

    We elucidate the differences between absolute and intensity-based limits of CO2 emission when there is uncertainty about the future. We demonstrate that the two limits are identical under certainty, and rigorously establish ...

  7. Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited Feedback in MISO broadcast channels with limited feed- back, transmit correlation and path loss. Our analysis

  8. THE EVOLUTION OF LYMAN LIMIT ABSORPTION SYSTEMS TO REDSHIFT SIX

    SciTech Connect (OSTI)

    Songaila, Antoinette; Cowie, Lennox L. [W. M. Keck Observatory, which is jointly operated by the California Institute of Technology, University of California, and National Aeronautics and Space Administration. (United States)

    2010-10-01T23:59:59.000Z

    We have measured the redshift evolution of the density of Lyman limit systems (LLSs) in the intergalactic medium over the redshift range 0 < z < 6. We have used two new quasar samples to (1) improve coverage at z {approx} 1, with GALEX grism spectrograph observations of 50 quasars with 0.8 < z{sub em} < 1.3, and (2) extend coverage to z {approx} 6, with Keck ESI spectra of 25 quasars with 4.17 < z{sub em} < 5.99. Using these samples together with published data, we find that the number density of LLS per unit redshift, n(z), can be well fit by a simple evolution of the form n(z) = n{sub 3.5}[(1 + z)/4.5]{sup {gamma}} with n{sub 3.5} = 2.80 {+-} 0.33 and {gamma} = 1.94{sup +0.36}{sub -0.32} for the entire range 0 < z < 6. We have also reanalyzed the evolution of damped Ly{alpha} systems (DLAs) in the redshift range 4 < z < 5 using our high-redshift quasar sample. We find a total of 17 DLAs and sub-DLAs, which we have analyzed in combination with published data. The DLAs with log H{sub I} column density > 20.3 show the same redshift evolution as the LLS. When combined with previous results, our DLA sample is also consistent with a constant {Omega}{sub DLA} = 9 x 10{sup -4} from z = 2 to z = 5. We have used the LLS number density evolution to compute the evolution in the mean free path (mfp) of ionizing photons. We find a smooth evolution to z {approx} 6, very similar in shape to that of Madau et al. but about a factor of two higher. Recent theoretical models roughly match to the z < 6 data but diverge from the measured power law at z>6 in different ways, cautioning against extrapolating the fit to the mfp outside the measured redshift range.

  9. Measuring the Interestingness of Articles in a Limited User Environment

    SciTech Connect (OSTI)

    Pon, R K

    2008-10-06T23:59:59.000Z

    Search engines, such as Google, assign scores to news articles based on their relevancy to a query. However, not all relevant articles for the query may be interesting to a user. For example, if the article is old or yields little new information, the article would be uninteresting. Relevancy scores do not take into account what makes an article interesting, which varies from user to user. Although methods such as collaborative filtering have been shown to be effective in recommendation systems, in a limited user environment, there are not enough users that would make collaborative filtering effective. A general framework, called iScore, is presented for defining and measuring the 'interestingness' of articles, incorporating user-feedback. iScore addresses various aspects of what makes an article interesting, such as topic relevancy, uniqueness, freshness, source reputation, and writing style. It employs various methods to measure these features and uses a classifier operating on these features to recommend articles. The basic iScore configuration is shown to improve recommendation results by as much as 20%. In addition to the basic iScore features, additional features are presented to address the deficiencies of existing feature extractors, such as one that tracks multiple topics, called MTT, and a version of the Rocchio algorithm that learns its parameters online as it processes documents, called eRocchio. The inclusion of both MTT and eRocchio into iScore is shown to improve iScore recommendation results by as much as 3.1% and 5.6%, respectively. Additionally, in TREC11 Adaptive Filter Task, eRocchio is shown to be 10% better than the best filter in the last run of the task. In addition to these two major topic relevancy measures, other features are also introduced that employ language models, phrases, clustering, and changes in topics to improve recommendation results. These additional features are shown to improve recommendation results by iScore by up to 14%. Due to varying reasons that users hold regarding why an article is interesting, an online feature selection method in naive Bayes is also introduced. Online feature selection can improve recommendation results in iScore by up to 18.9%. In summary, iScore in its best configuration can outperform traditional IR techniques by as much as 50.7%. iScore and its components are evaluated in the news recommendation task using three datasets from Yahoo! News, actual users, and Digg. iScore and its components are also evaluated in the TREC Adaptive Filter task using the Reuters RCV1 corpus.

  10. Lithium as a Liquid Limiter in FTU G.Mazzitelli1

    E-Print Network [OSTI]

    Vlad, Gregorio

    Lithium as a Liquid Limiter in FTU G.Mazzitelli1 , M.L. Apicella1 , M.Marinucci1 , C. Mazzotta1 , V@frascati.enea.it Abstract. The experimental results of the use of a liquid lithium limiter on FTU are presented. To avoid. Lithization of the vacuum vessel is performed by exposing lithium limiter to the plasma boundary for three

  11. Hydraulic limits on maximum plant transpiration and the emergence of the safetyefficiency trade-off

    E-Print Network [OSTI]

    Jackson, Robert B.

    Hydraulic limits on maximum plant transpiration and the emergence of the safety­efficiency trade.12126 Key words: hydraulic limitation, safety­ efficiency trade-off, soil­plant­atmosphere model, trait hydraulics constrain ecosystem productivity by setting physical limits to water transport and hence carbon

  12. SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY

    E-Print Network [OSTI]

    Lewicka, Marta

    SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY MARTA LEWICKA, MARIA to minimizers of suitable lower dimensional limit energies. In this paper we discuss shell theories arising of -limit) of the 3d nonlinear elasticity for thin shells around an arbitrary smooth 2d surface

  13. Limited Diffraction Array Beams Ultrasound Research Laboratory, Department of Physiology and Biophysics, Mayo Clinic and Foundation,

    E-Print Network [OSTI]

    Lu, Jian-yu

    Limited Diffraction Array Beams Jian-yu Lu Ultrasound Research Laboratory, Department of Physiology and Biophysics, Mayo Clinic and Foundation, Rochester, MN 55905 ABSTRACT: Limited diffraction beams have a large applications. In this article, new limited diffrac- beam patterns near the cone surface, these devices

  14. Calculating exclusion limits for Weakly Interacting Massive Particle direct detection experiments without background subtraction

    E-Print Network [OSTI]

    Anne M Green

    2001-10-04T23:59:59.000Z

    Competitive limits on the weakly interacting massive particle (WIMP) spin-independent scattering cross section are currently being produced by 76Ge detectors originally designed to search for neutrinoless double beta decay, such as the Heidelberg-Moscow and IGEX experiments. In the absence of background subtraction, limits on the WIMP interaction cross section are set by calculating the upper confidence limit on the theoretical event rate, given the observed event rate. The standard analysis technique involves calculating the 90% upper confidence limit on the number of events in each bin, and excluding any set of parameters (WIMP mass and cross-section) which produces a theoretical event rate for any bin which exceeds the 90% upper confidence limit on the event rate for that bin. We show that, if there is more than one energy bin, this produces exclusion limits that are actually at a lower degree of confidence than 90%, and are hence erroneously tight. We formulate criteria which produce true 90% confidence exclusion limits in these circumstances, including calculating the individual bin confidence limit for which the overall probability that no bins exceeds this confidence limit is 90% and calculating the 90% minimum confidence limit on the number of bins which exceed their individual bin 90% confidence limits. We then compare the limits on the WIMP cross-section produced by these criteria with those found using the standard technique, using data from the Heidelberg-Moscow and IGEX experiments.

  15. LimitedAngle Computed Tomography for Sandwich Structures using Data Fusion

    E-Print Network [OSTI]

    Boyd, Jeffrey E.

    1 Limited­Angle Computed Tomography for Sandwich Structures using Data Fusion Jeffrey E. Boyd and limited­angle computed­tomography (CT) are ill­posed problems, but where conventional CT has a small null. #12; 2 1. INTRODUCTION This paper presents a novel method for limited­angle computed tomography (CT

  16. Optical limiting and thermal lensing studies in C60 S. S. Harilal,a)

    E-Print Network [OSTI]

    Harilal, S. S.

    Optical limiting and thermal lensing studies in C60 S. S. Harilal,a) C. V. Bindhu, V. P. N 1999 Optical limiting and thermo-optic properties of C60 in toluene are studied using 532 nm, 9 ns pulses from a frequency-doubled Nd:YAG laser. Optical limiting studies in these fullerene molecules lead

  17. How many objects can you track?: Evidence for a resource-limited attentive tracking mechanism

    E-Print Network [OSTI]

    Alvarez, George A.

    How many objects can you track?: Evidence for a resource-limited attentive tracking mechanism can you track?: Evidence for a resource-limited attentive tracking mechanism. Journal of Vision, 7 model), or whether the limit on tracking is set by a resource that can be flexibly allocated to objects

  18. Computing (r, Q) Policy for an Inventory System with Limited Sharable Resource

    E-Print Network [OSTI]

    Xie, Jinxing

    Computing (r, Q) Policy for an Inventory System with Limited Sharable Resource Xiaobo Zhao1 with an inventory system with limited resource for a single item or multiple items under continuous review (r, Q) policies. For the single-item system with a stochastic demand, a constant lead time, and limited resource

  19. Behavioral/Systems/Cognitive From Distributed Resources to Limited Slots in

    E-Print Network [OSTI]

    Wang, Xiao-Jing

    Behavioral/Systems/Cognitive From Distributed Resources to Limited Slots in Multiple-Item Working in which memory items are stored in a limited number of slots, and a "shared-resource" model in which the neural representation of items is distributed across a limited pool of resources. To elucidate

  20. Limitations and Trade-offs in Gene Expression due to Competition for Shared Cellular Resources

    E-Print Network [OSTI]

    Del Vecchio, Domitilla

    Limitations and Trade-offs in Gene Expression due to Competition for Shared Cellular Resources- lational resources in the cell. The fact that these common resources are available only in limited amounts, and surprisingly, as activators to each other, purely due to the limited availability of shared cellular resources

  1. Resource limitation is a driver of local adaptation in mycorrhizal symbioses

    E-Print Network [OSTI]

    Weiblen, George D

    Resource limitation is a driver of local adaptation in mycorrhizal symbioses Nancy Collins Johnsona of the most limiting resource is maximized. Grasses grown in home soil and inoculated with home AM fungi biotrophs with vascular plants, and they facilitate plant acquisition of limiting soil resources. Thus

  2. A unifying approach to allometric scaling of resource ingestion rates under limiting conditions

    E-Print Network [OSTI]

    Paparella, Francesco

    A unifying approach to allometric scaling of resource ingestion rates under limiting conditions scaling of resource ingestion rates under limiting conditions. Ecosphere 3(1):2. doi:10.1890/ES11 dependency of resource limitations. Experimental and literature data describing patterns of perceived

  3. An analytical limitation for time-delayed feedback control in autonomous systems

    E-Print Network [OSTI]

    Edward W. Hooton; Andreas Amann

    2012-09-08T23:59:59.000Z

    We prove an analytical limitation on the use of time-delayed feedback control for the stabilization of periodic orbits in autonomous systems. This limitation depends on the number of real Floquet multipliers larger than unity, and is therefore similar to the well-known odd number limitation of time-delayed feedback control. Recently, a two-dimensional example has been found, which explicitly demonstrates that the unmodified odd number limitation does not apply in the case of autonomous systems. We show that our limitation correctly predicts the stability boundaries in this case.

  4. The lattice QCD phase diagram in and away from the strong coupling limit

    E-Print Network [OSTI]

    Philippe de Forcrand; Jens Langelage; Owe Philipsen; Wolfgang Unger

    2014-06-17T23:59:59.000Z

    We study lattice QCD with four flavors of staggered quarks. In the limit of infinite gauge coupling, "dual" variables can be introduced, which render the finite-density sign problem mild and allow a full determination of the $\\mu-T$ phase diagram by Monte Carlo simulations, also in the chiral limit. However, the continuum limit coincides with the weak coupling limit. We propose a strong-coupling expansion approach towards the continuum limit. We show first results, including the phase diagram and its chiral critical point, from this expansion truncated to next-to-leading order.

  5. On the choice of time in the continuum limit of polymeric effective theories

    E-Print Network [OSTI]

    Alejandro Corichi; Tatjana Vukasinac

    2012-09-12T23:59:59.000Z

    In polymeric quantum theories, a natural question pertains to the so called continuum limit, corresponding to the limit where the `discreteness parameter' $\\lambda$ approaches zero. In particular one might ask whether the limit exists and, in that case, what the limiting theory is. Here we review recent results on the classical formulation of the problem for a soluble model in loop quantum cosmology. We show that it is only through the introduction of a particular $\\lambda$-dependent internal time function that the limit $\\lambda\\to 0$ can be well defined. We then compare this result with the existing analysis in the quantum theory, where the dynamics was cast in terms of an internal ($\\lambda$-independent) parameter for which the limit does not exist. We briefly comment on the steps needed to define the corresponding time parameter in the quantum theory for which the limit was shown to exist classically.

  6. agistemus floridanus gonzalez: Topics by E-print Network

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

    Munro COMMITTEE (PAC) - Britton Anderson I. PEOPLE'S ENDOWMENT FUND COMMITTEE - Debbie Gonzalez J. TECHNOLOGY Wagner, Diane 334 Kamran Khan Vice Provost for IT Diane...

  7. Morphosyntactic Skills of Poor Comprehenders

    E-Print Network [OSTI]

    Adlof, Suzanne Marie

    2009-07-23T23:59:59.000Z

    ____________________________________ Mabel L. Rice ____________________________________ Holly L. Storkel ____________________________________ Diane Frome Loeb ____________________________________ Sara Thomas Rosen Date Defended: 6...: ____________________________________ Hugh W. Catts, Chairperson ____________________________________ Mabel L. Rice ____________________________________ Holly L. Storkel ____________________________________ Diane Frome Loeb...

  8. Use of Integrated Decay Heat Limits to Facilitate Spent Nuclear Fuel Loading to Yucca Mountain

    SciTech Connect (OSTI)

    Li, Jun; Yim, Man-Sung; McNelis, David [Department of Nuclear Engineering, North Carolina State University (United States); Piet, Steven [Idaho National Laboratory (United States)

    2007-07-01T23:59:59.000Z

    As an alternative to the use of the linear loading or areal power density (APD) concept, using integrated decay heat limits based on the use of mountain-scale heat transfer analysis is considered to represent the thermal impact from the deposited spent nuclear fuel (SNF) to the Yucca Mountain repository. Two different integrated decay heat limits were derived to represent both the short-term (up to 50 years from the time of repository closure) and the long-term decay heat effect (up to 1500 years from the time of repository closure). The derived limits were found to appropriately represent the drift wall temperature limit (200 deg. C) and the midway between adjacent drifts temperature limit (96 deg. C) as long as used fuel is uniformly loaded into the mountain. These limits can be a useful practical guide to facilitate the loading of used fuel into Yucca Mountain. (authors)

  9. Shell theories arising as low energy ?-limit of 3d nonlinear elasticity

    E-Print Network [OSTI]

    Marta Lewicka; Maria Giovanna Mora; Mohammad Reza Pakzad

    2008-03-04T23:59:59.000Z

    We discuss the limiting behavior (using the notion of \\Gamma-limit) of the 3d nonlinear elasticity for thin shells around an arbitrary smooth 2d surface. In particular, under the assumption that the elastic energy of deformations scales like h^4 (where h is the thickness of a shell), we derive a limiting theory which is a generalization of the von K\\'arm\\'an theory for plates.

  10. Experimental measurements and modeling prediction of flammability limits of binary hydrocarbon mixtures

    E-Print Network [OSTI]

    Zhao, Fuman

    2009-05-15T23:59:59.000Z

    of methane in air using thermal criterion?????..50 4.8 Determination of LFL of ethylene in air using thermal criterion???...??..51 4.9 Lower flammability limits of methane and n-butane mixtures in air at standard conditions...????????????????????..56 4.14 Upper flammability limits of methane and n-butane mixtures in air at standard conditions?????????????..???????57 4.15 Upper flammability limits of methane and ethylene mixtures in air at standard conditions...

  11. The limited partnership as an agricultural investment medium: a look at investors and their objectives

    E-Print Network [OSTI]

    Abele, Teddy Merl

    1976-01-01T23:59:59.000Z

    Schmaltz Tax Loss Agriculture. Summary. 4 6 7 8 9 11 12 13 15 17 17 22 22 25 THE LIMITED PARTNERSHIP: ORGANIZATIONAL AND LEGAL BASES. CHARACTERISTICS 26 Partners. Limited Partners. Advantages and Disadvantages. General Partners.... Association Semblance. Continuity of Life. Centralised Management Limited Liability. Fzee Transferability of Interests, . The Corporate General Partner Safe Harbor Rules. Allocation of Profits and Losses. Regulation of Allocations The Basis...

  12. Invariant Classification and Limits of Maximally Superintegrable Systems in 3D

    E-Print Network [OSTI]

    J. Capel; J. Kress; S. Post

    2015-01-28T23:59:59.000Z

    The invariant classification of superintegrable systems is reviewed and utilized to construct singular limits between the systems. It is shown, by construction, that all superintegrable systems on conformally flat, 3D complex Riemannian manifolds can be obtained from singular limits of a generic system on the sphere. By using the invariant classification, the limits are geometrically motivated in terms of transformations of roots of the classifying polynomials.

  13. Title 10 USC 2684a Agreements to Limit Encroachments and Other...

    Open Energy Info (EERE)

    Agreements to Limit Encroachments and Other Constraints on Military Training, Testing, and Operations Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal...

  14. EECBG 11-002 Clarification of Ten Percent Limitation on Use of...

    Energy Savers [EERE]

    Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency and Conservation Block Grant Program (EECBG), ten percent limitation, administrative expenses, the...

  15. Techniques to Handle Limitations in Dynamic Relative Permeability Measurements, SUPRI TR-128

    SciTech Connect (OSTI)

    Qadeer, Suhail; Brigham, William E.; Castanier, Louis M.

    2002-10-08T23:59:59.000Z

    The objective of this work was to understand the limitations of the conventional methods of calculating relative permeabilities from data obtained from displacement experiments.

  16. E-Print Network 3.0 - assist solubility limits Sample Search...

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

    limit. Moreover... and computational approaches to estimate solubility and permeability in drug discovery and development q settings... and computational approaches to...

  17. Feasibility Limits of Transradial Primary Percutaneous Coronary Intervention in Acute Myocardial Infarction in

    E-Print Network [OSTI]

    Boyer, Edmond

    Feasibility Limits of Transradial Primary Percutaneous Coronary Intervention in Acute Myocardial to transfemoral (TFI) percutaneous coronary intervention (PCI) is associated with improved clinical outcome driven

  18. E-Print Network 3.0 - acceptance test limit Sample Search Results

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

    and Information Sciences 16 Power-Aware Test Planning in the Early System-on-Chip Design Exploration Process Summary: limitations. Concurrent scheduling of tests is used to...

  19. Impact of reduced dose limits on NRC licensed activities. Major issues in the implementation of ICRP/NCRP dose limit recommendations: Final report

    SciTech Connect (OSTI)

    Meinhold, C.B. [Brookhaven National Lab., Upton, NY (United States)

    1995-05-01T23:59:59.000Z

    This report summarizes information required to estimate, at least qualitatively, the potential impacts of reducing occupational dose limits below those given in 10 CFR 20 (Revised). For this study, a questionnaire was developed and widely distributed to the radiation protection community. The resulting data together with data from existing surveys and sources were used to estimate the impact of three dose-limit options; 10 mSv yr{sup {minus}1} (1 rem yr{sup {minus}1}), 20 mSv yr{sup {minus}1} (2 rem yr{sup {minus}1}), and a combination of an annual limit of 50 mSv yr{sup {minus}1} (5 rem yr{sup {minus}1}) coupled with a cumulative limit, in rem, equal to age in years. Due to the somewhat small number of responses and the lack of data in some specific areas, a working committee of radiation protection experts from a variety of licensees was employed to ensure the exposure data were representative. The following overall conclusions were reached: (1) although 10 mSv yr{sup {minus}1} is a reasonable limit for many licensees, such a limit could be extraordinarily difficult to achieve and potentially destructive to the continued operation of some licensees, such as nuclear power, fuel fabrication, and medicine; (2) twenty mSv yr{sup {minus}1} as a limit is possible for some of these groups, but for others it would prove difficult. (3) fifty mSv yr{sup {minus}1} and age in 10s of mSv appear reasonable for all licensees, both in terms of the lifetime risk of cancer and severe genetic effects to the most highly exposed workers, and the practicality of operation.

  20. Sequence Codes for Extended Conformation: A Neighbor-Dependent Sequence Analysis of Loops in Proteins

    E-Print Network [OSTI]

    Crasto, Chiquito

    in proteins. Because of this lack of knowledge, our ability to identify loop regions in proteins is limited in Proteins Chiquito J. Crasto and Jin-an Feng* Institute for Cancer Research, Fox Chase Cancer Center of proteins. By dividing a loop databank derived from the Protein Data Bank into groups, we analyzed

  1. Global Dynamics of Zooplankton and Harmful Algae in Flowing Habitats

    E-Print Network [OSTI]

    Hsu, Sze-Bi

    Global Dynamics of Zooplankton and Harmful Algae in Flowing Habitats Sze-Bi Hsu Feng-Bin Wang Xiao from the dynamics of harmful algae and zooplankton in flowing- water habitats where a main channel. For the system modeling the dynamics of algae and their toxin that contains little limiting nutrient, we

  2. Towards the zero-surface-tension limit in granular fingering instability

    E-Print Network [OSTI]

    Loss, Daniel

    LETTERS Towards the zero-surface-tension limit in granular fingering instability XIANG CHENG*, LEI Hele­Shaw system to explore the zero-surface-tension property of granular `fluids'16 . We demonstrate-unrealizable singular hydrodynamics predicted in the zero-surface-tension limit of normal fluid fingering2,17­23 . Above

  3. Surface current effects on the fetch-limited growth of wave energy Brian K. Haus1

    E-Print Network [OSTI]

    Miami, University of

    Surface current effects on the fetch-limited growth of wave energy Brian K. Haus1 Received 5 the fetch-limited growth of wind wave energy over a region with significant lateral shear of the current. Both the near-surface currents and wave energy and period were mapped over the highly sheared inshore

  4. Complex hydraulic and substrate variables limit freshwater mussel species richness and abundance

    E-Print Network [OSTI]

    Vaughn, Caryn

    Complex hydraulic and substrate variables limit freshwater mussel species richness and abundance. We examined how substrate and complex hydraulic variables limit the distribution of freshwater mussels. We sampled mussels and measured substrate and hydraulic variables (at low and high flows) at 6

  5. Sensitivity Study of Physical Limits on Ground Motion at Yucca Mountain

    E-Print Network [OSTI]

    Duan, Benchun

    1 Sensitivity Study of Physical Limits on Ground Motion at Yucca Mountain Benchun Duan1 and Steven investigate physical3 limits at Yucca Mountain, Nevada, and assess sensitivities due to uncertainties in fault (e.g.,28 Bommer, 2002; Bommer et al., 2004).29 The 1998 PSHA for Yucca Mountain, a potential high

  6. Radiative transport limit for the random Schrodinger Guillaume Bal George Papanicolaou y Leonid Ryzhik z

    E-Print Network [OSTI]

    Ryzhik, Lenya

    Radiative transport limit for the random Schrodinger equation Guillaume Bal #3; George of the radiative transport limit for the average phase space density of solutions of the Schrodinger equation to the solution of a radiative transport equation. The propagation of wave energy in a scattering medium

  7. Photosynthetic and growth responses of three freshwater algae to phosphorus limitation and daylength

    E-Print Network [OSTI]

    Bossard, Peter

    Photosynthetic and growth responses of three freshwater algae to phosphorus limitation., green alga Sphaerocystis schroeteri and cyanobacterium Phormidium luridum, were grown under contrasting of the green alga S. schroeteri decreased the most (ca. sixfold) under P limitation compared with the other two

  8. Local Limit Theorems for Random Walks in a 1D Random Environment

    E-Print Network [OSTI]

    Dolgopyat, Dmitry

    Local Limit Theorems for Random Walks in a 1D Random Environment D. Dolgopyat and I. Goldsheid Abstract. We consider random walks (RW) in a one-dimensional i.i.d. random environment with jumps to the nearest neighbours. For almost all environments, we prove a quenched Local Limit Theorem (LLT

  9. ENERGY-BASED LIMIT CYCLE COMPENSATION FOR DYNAMICALLY BALANCING WHEELED INVERTED PENDULUM MACHINES

    E-Print Network [OSTI]

    Dollar, Aaron M.

    ENERGY-BASED LIMIT CYCLE COMPENSATION FOR DYNAMICALLY BALANCING WHEELED INVERTED PENDULUM MACHINES are not well known. The effects of these non-linearities can be observed in the energy behavior of IP balancing. While in this paper we use an energy-based observer to detect and correct limit cycles while balancing

  10. Space Temperature Policy This document seeks to clarify the position regarding internal space temperature limits that

    E-Print Network [OSTI]

    Chittka, Lars

    . It should be noted that it is the responsibility of local managers for the welfare of their staff action to be taken. Space Temperatures Limits The Health & Safety Executive (HSE) has stated by air temperature alone. The HSE considers 80% of occupants as a reasonable limit for the minimum number

  11. Value Proposition: Previous physical limitations of use of the screw pump

    E-Print Network [OSTI]

    Haller-Dintelmann, Robert

    Value Proposition: · Previous physical limitations of use of the screw pump technology do not apply drive Field of Application: The technology is interesting for all pump manufacturers, who supply pumps the functionality of the screw pump State of the art: · Pressure operation limit is function of rotating speed, oil

  12. Greenhouse-gas emission targets for limiting global warming to 2 6C

    E-Print Network [OSTI]

    Imamoglu, Atac

    LETTERS Greenhouse-gas emission targets for limiting global warming to 2 6C Malte Meinshausen1. Frame6,7 & Myles R. Allen7 More than 100 countries have adopted a global warming limit of 2 6C or below levels in 2050 are robust indicators of the probability that twenty-first century warming will not exceed

  13. Kinetic effects of toluene blending on the extinction limit of n-decane diffusion flames

    E-Print Network [OSTI]

    Ju, Yiguang

    analyses of kinetic path ways and species transport on flame extinction were also conducted. The results and emission properties, such as the ignition delay times, extinction limits, flame speeds, species profilesKinetic effects of toluene blending on the extinction limit of n-decane diffusion flames Sang Hee

  14. DAMPING IMPROVEMENT THROUGH TUNING CONTROLLER LIMITS OF A SERIES FACTS DEVICE

    E-Print Network [OSTI]

    Hiskens, Ian A.

    transformed by Park's transformation [1] into d and q axes components id and iq in a synchronously rotating of the saturation limiter (with non-smooth nonlinearities) on system dynamics of a power network equipped- frequency oscillations in a power system. The saturation limiter in the EC is used to enforce practical

  15. Because people with limited resources are often challenged to find food that is healthy, safe and

    E-Print Network [OSTI]

    Netoff, Theoden

    Because people with limited resources are often challenged to find food that is healthy, safe and affordable. People with limited resources often run short of food at the end of the month. university and employer. Printed on recycled and recyclable paper with at least 10 percent postconsumer waste material

  16. Deterministic motion of the controversial piston in the thermodynamic limit Christian Gruber and Severine Pache

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Deterministic motion of the controversial piston in the thermodynamic limit Christian Gruber and S divided into two regions by a movable adiabatic wall (the adiabatic piston). We study the thermodynamic limit for the piston where the area A of the cross-section, the mass M of the piston, and the number N

  17. The Modified Sudden Death Test: Planning Life Tests with a Limited Number of Test Positions

    E-Print Network [OSTI]

    The Modified Sudden Death Test: Planning Life Tests with a Limited Number of Test Positions Francis for Nondestructive Evaluation Iowa State University Ames, IA 50011 ABSTRACT: We present modified sudden death test (MSDT) plans to address the problem of limited testing positions in life tests. A single MSDT involves

  18. The Modi ed Sudden Death Test: Planning Life Tests with a Limited Number of Test Positions

    E-Print Network [OSTI]

    The Modi ed Sudden Death Test: Planning Life Tests with a Limited Number of Test Positions Francis for Nondestructive Evaluation Iowa State University Ames, IA 50011 ABSTRACT: We present modi ed sudden death test (MSDT) plans to address the problem of limited testing positions in life tests. A single MSDT involves

  19. Joint Power Control and Beamforming Codebook Design for MISO Channels with Limited Feedback

    E-Print Network [OSTI]

    Yu, Wei

    Joint Power Control and Beamforming Codebook Design for MISO Channels with Limited Feedback Behrouz-input single-output (MISO) wireless systems with a rate-limited feedback link. The problem is cast in the form-output (MISO) channel with channel state information at the receiver (CSIR) and a noiseless delay-free feedback

  20. Limited Angle Tomography of Sparse Images from Noisy Data using TLS MUSIC Algorithm

    E-Print Network [OSTI]

    Yagle, Andrew E.

    1 Limited Angle Tomography of Sparse Images from Noisy Data using TLS MUSIC Algorithm Andrew E The limited angle tomography problem is to recon- struct an image x(y, z) from its projections p(t, ) p-shaped region. This has applications to med- ical imaging and non-destructive evaluation where projection data

  1. Limits on the Power of Cryptographic Cheap Talk Pavel Hubcek Jesper Buus Nielsen Alon Rosen

    E-Print Network [OSTI]

    Limits on the Power of Cryptographic Cheap Talk Pavel Hubácek Jesper Buus Nielsen Alon Rosen August that their solution is stable in the Nash equilibrium (NE) sense, provided that the players are computationally solutions so far were either sequentially unstable, or were restricted to a limited class of correlated

  2. Limits on the Power of Cryptographic Cheap Talk Pavel Hubcek Jesper Buus Nielsen Alon Rosen

    E-Print Network [OSTI]

    Rosen, Alon

    Limits on the Power of Cryptographic Cheap Talk Pavel Hubácek Jesper Buus Nielsen Alon Rosen that their solution is stable in the Nash equilibrium (NE) sense, provided that the players are computationally solutions so far were either sequentially unstable, or were restricted to a limited class of correlated

  3. THE INCOMPRESSIBLE EULER LIMIT OF THE BOLTZMANN EQUATION FOR A GAS OF FERMIONS

    E-Print Network [OSTI]

    Boyer, Edmond

    THE INCOMPRESSIBLE EULER LIMIT OF THE BOLTZMANN EQUATION FOR A GAS OF FERMIONS THIBAUT ALLEMAND Abstract. We are interested in the hydrodynamic limit of the Boltzmann equation for a gas of fermions-Einstein condensates". Conversely, fermions obey Pauli's exclusion principle, which prevents any pair of fermions from

  4. Leon County Extension -615 Paul Russell Rd. -Tallahassee Limited Commercial Landscape Maintenance Certification

    E-Print Network [OSTI]

    Watson, Craig A.

    Leon County Extension - 615 Paul Russell Rd. - Tallahassee Limited Commercial Landscape Maintenance Certification Training Class & Exam Wednesday, March 21, 2012 If you work for a commercial landscape maintenance requires that you have a limited commercial landscape maintenance certification. To take the test

  5. A local limit theorem for triple connections in subcritical Bernoulli percolation

    E-Print Network [OSTI]

    Massimo Campanino; Michele Gianfelice

    2011-03-10T23:59:59.000Z

    We prove a local limit theorem for the probability of a site to be connected by disjoint paths to three points in subcritical Bernoulli percolation on $\\mathbb{Z}^{d},\\,d\\geq2$ in the limit where their distances tend to infinity.

  6. Evaluation of Largemouth Bass Slot Length Limits in South Dakota Waters

    E-Print Network [OSTI]

    IY5~p: SOUTH DAKOTA ----.--) o o ~o Evaluation of Largemouth Bass Slot Length Limits in South Dakota Waters Department of Game, Fish and Parks Wildlife Division Foss Building Pierre. South Dakota 67601.3182 Completion Report No. 93-13 #12;Evaluation of Largemouth Bass Slot Length Limits in South

  7. Erratum (astro-ph/0510172): Robust Limits on Lorentz Violation from Gamma-Ray Bursts

    E-Print Network [OSTI]

    John Ellis; N. E. Mavromatos; D. V. Nanopoulos; A. S. Sakharov; E. K. G. Sarkisyan

    2007-12-17T23:59:59.000Z

    We correct the fitting formula used in refs. [1,2] to obtain a robust limit on a violation of Lorentz invariance that depends linearly on the photon energy. The correction leads to a slight increase of the limit on the scale of the violation, to M > 1.4 x 10^{16} GeV.

  8. General relativity limit of the scalar-tensor theories for traceless matter field

    E-Print Network [OSTI]

    A. Bhadra

    2002-04-03T23:59:59.000Z

    $\\omega(\\phi) \\to \\infty$ limit of scalar tensor theories are studied for traceless matter source. It is shown that the limit $\\omega(\\phi) \\to \\infty$ does not reduce a scalar tensor theory to general relativity. An exact radiation solution of scalar tensor cosmology under Nordtvedt conditions is obtained for flat Friedmann universe.

  9. Maximum Theoretical Efficiency Limit of Photovoltaic Devices: Effect of Band Structure on Excited State Entropy

    E-Print Network [OSTI]

    Osterloh, Frank

    , we show that the maximum conversion efficiency is limited further by the excited state entropyMaximum Theoretical Efficiency Limit of Photovoltaic Devices: Effect of Band Structure on Excited State Entropy Frank E. Osterloh* Department of Chemistry, University of CaliforniaDavis, One Shields

  10. UNIVERSITY OF CHICAGO TOPOLOGY AND HETEROGENEITY AT THE RATE-LIMITING STEP

    E-Print Network [OSTI]

    Sosnick, Tobin R.

    UNIVERSITY OF CHICAGO TOPOLOGY AND HETEROGENEITY AT THE RATE-LIMITING STEP OF THE PROTEIN FOLDING .......................................................................... 2 1.3 Physical processes in protein folding...................................................... 5 of the rate-limiting step in protein folding ...................... 11 1.4.1 Two-state mechanisms and TS

  11. The Airy_1 process is not the limit of the largest eigenvalue in GOE matrix diffusion

    E-Print Network [OSTI]

    Folkmar Bornemann; Patrik L. Ferrari; Michael Prähofer

    2008-06-20T23:59:59.000Z

    Using a systematic approach to evaluate Fredholm determinants numerically, we provide convincing evidence that the Airy_1-process, arising as a limit law in stochastic surface growth, is not the limit law for the evolution of the largest eigenvalue in GOE matrix diffusion.

  12. THE MODULUS OF CONTINUITY FOR 0(m)\\H SEMI-CLASSICAL LIMITS

    E-Print Network [OSTI]

    Wolpert, Scott A.

    THE MODULUS OF CONTINUITY FOR 0(m)\\H SEMI-CLASSICAL LIMITS SCOTT A. WOLPERT Abstract. We study [13]. In [29] the author found that the microlocal lift to SL(2; R) S (H)1/2 of automorphic eigen result is equivalent to a limit-sum formula combining the Riemann zeta values (1 + it) and the elemen

  13. DEGB LOCA ECS power limit recommendation for the K-14. 1 subcycle

    SciTech Connect (OSTI)

    Smith, F.G. III; Aleman, S.E.

    1991-04-01T23:59:59.000Z

    This report documents assembly deposited power limits and the corresponding effluent temperature limits recommended for operating the K-14.1 subcycle to ensure sufficient cooling of reactor assemblies during the ECS phase of a Double Ended Guillotine Break (DEGSS) Loss of Coolant Accident (LOCA). The ECS LOCA effluent temperature limits are computed for each flowzone of the K-14.1 charge. The recommended overall DEGB LOCA ECS power limit is 1515 MW or about 63.1% of the historical full reactor power limit (assumed to be 2400-MW) for Mark 22 assemblies. The design basis accident is a break in the plenum inlet line where the AC pump motors not tripped.

  14. DEGB LOCA ECS power limit recommendation for the K-14.1 subcycle. Revision 1

    SciTech Connect (OSTI)

    Smith, F.G. III; Aleman, S.E.

    1991-04-01T23:59:59.000Z

    This report documents assembly deposited power limits and the corresponding effluent temperature limits recommended for operating the K-14.1 subcycle to ensure sufficient cooling of reactor assemblies during the ECS phase of a Double Ended Guillotine Break (DEGSS) Loss of Coolant Accident (LOCA). The ECS LOCA effluent temperature limits are computed for each flowzone of the K-14.1 charge. The recommended overall DEGB LOCA ECS power limit is 1515 MW or about 63.1% of the historical full reactor power limit (assumed to be 2400-MW) for Mark 22 assemblies. The design basis accident is a break in the plenum inlet line where the AC pump motors not tripped.

  15. The limiting behavior of the Liu-Yau quasi-local energy

    E-Print Network [OSTI]

    P. P. Yu

    2007-06-07T23:59:59.000Z

    The small- and large-sphere limits of the quasi-local energy recently proposed by Liu and Yau are carefully examined. It is shown that in the small-sphere limit, the non-vacuum limit of the Liu-Yau quasi-local energy approaches the expected value \\frac{4\\pi}{3} r^3 T(e_0, e_0)$. Here, T is the energy-stress tensor of matter, e_0 \\in T_p M is unit time-like and future-directed at the point p located at the center of the small sphere of radius $r$ in the limit r \\to 0. In vacuum, however, the limiting value of the Liu-Yau quasi-local energy contains the desired limit \\frac{r^5}{90} B(e_0, e_0, e_0, e_0), where B is the Bel-Robinson tensor, as well as an extra term. In the large-sphere limit at null infinity, for isolated gravitational sources, the Liu-Yau quasi-local energy is shown to recover the Bondi mass and Bondi news flux, in space-times that are asymptotically empty and flat at null infinity. The physical validity of the Liu-Yau model in view of these results is discussed.

  16. Undoing the twist: the Ho?ava limit of Einstein-aether

    E-Print Network [OSTI]

    Ted Jacobson

    2014-03-23T23:59:59.000Z

    We show that Ho\\v{r}ava gravity can be obtained from Einstein-aether theory in the limit that the twist coupling constant goes to infinity, while holding fixed the expansion, shear and acceleration couplings. This limit helps to clarify the relation between the two theories, and allows Ho\\v{r}ava results to be obtained from Einstein-aether ones. The limit is illustrated with several examples, including rotating black hole equations, PPN parameters, and radiation rates from binary systems.

  17. Performance limits for exo-clutter Ground Moving Target Indicator (GMTI) radar.

    SciTech Connect (OSTI)

    Doerry, Armin Walter

    2010-09-01T23:59:59.000Z

    The performance of a Ground Moving Target Indicator (GMTI) radar system depends on a variety of factors, many which are interdependent in some manner. It is often difficult to 'get your arms around' the problem of ascertaining achievable performance limits, and yet those limits exist and are dictated by physics. This report identifies and explores those limits, and how they depend on hardware system parameters and environmental conditions. Ultimately, this leads to a characterization of parameters that offer optimum performance for the overall GMTI radar system. While the information herein is not new to the literature, its collection into a single report hopes to offer some value in reducing the 'seek time'.

  18. The ice-limit of Coulomb gauge Yang-Mills theory

    E-Print Network [OSTI]

    Heinzl, Thomas; Langfeld, Kurt; Lavelle, Martin; McMullan, David

    2008-01-01T23:59:59.000Z

    In this paper we describe gauge invariant multi-quark states generalising the path integral framework developed by Parrinello, Jona-Lasinio and Zwanziger to amend the Faddeev-Popov approach. This allows us to produce states such that, in a limit which we call the ice-limit, fermions are dressed with glue exclusively from the fundamental modular region associated with Coulomb gauge. The limit can be taken analytically without difficulties, avoiding the Gribov problem. This is llustrated by an unambiguous construction of gauge invariant mesonic states for which we simulate the static quark--antiquark potential.

  19. Limits on iron-dominated fallback disk in SN 1987A

    E-Print Network [OSTI]

    K. Werner; T. Nagel; T. Rauch

    2007-03-20T23:59:59.000Z

    The non-detection of a point source in SN1987A imposes an upper limit for the optical luminosity of L=2L_sun. This limits the size of a possible fallback disk around the stellar remnant. Assuming a steady-state thin disk with blackbody emission requires a disk smaller than 100,000 km if the accretion rate is at 30% of the Eddington rate (Graves et al. 2005). We have performed detailed non-LTE radiation transfer calculations to model the disk spectrum more realistically. It turns out that the observational limit on the disk extension becomes even tighter, namely 70,000 km.

  20. PRACTICAL APPLICATION OF THE SINGLE-PARAMETER SUBCRITICAL MASS LIMIT FOR PLUTONIUM METAL

    SciTech Connect (OSTI)

    MITCHELL, MARK VON [Los Alamos National Laboratory

    2007-01-10T23:59:59.000Z

    According to ANS-8.1, operations with fissile materials can be performed safely by complying with any of the listed single-parameter subcritical limits. For metallic units, when interspersed moderators are present, the mass limits apply to a single piece having no concave surfaces. On a practical level, when has any operation with fissile metal involved a single piece and absolutely no moderating material, e.g., water, oil, plastic, etc.? This would be rare. This paper explores the application of the single-parameter plutonium metal mass limit for realistic operational environments.