Sample records for logan sholar signature

  1. Fractal Coagulation Bruce E. Logan

    E-Print Network [OSTI]

    Fractal Coagulation Kinetics Bruce E. Logan Department of Civil & Environmental Engineering paradigm shift is needed to explain the formation of marine snow? #12;Birth of Fractal Geometry ·In 1982, Benoit Mandelbrot publishes "Fractal Geometry" and fractal mathematics is born. ·Fractal scaling

  2. FLOOD WARNING SYSTEM LOGAN & ALBERT RIVERS

    E-Print Network [OSTI]

    Greenslade, Diana

    . The system provides early warning of heavy rainfalls and river rises throughout the catchment and enablesFLOOD WARNING SYSTEM for the LOGAN & ALBERT RIVERS This brochure describes the flood warning system of Meteorology operates a flood warning system for the Logan and Albert River catchments based on a rainfall

  3. LoganEnergy Corp | Open Energy Information

    Open Energy Info (EERE)

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

  4. Improving public transportation to Boston Logan International Airport

    E-Print Network [OSTI]

    Cao, Siyuan, M. Eng. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    Boston Logan International Airport is the largest airport in New England and the 1 9 th busiest airport in the United States, serving 29.3 million passengers (arrivals and departures) in 2012. There are approximately 36,900 ...

  5. OXYGEN TRANSFER IN TRICKLING FILTERS By BruceE. Logan~

    E-Print Network [OSTI]

    OXYGEN TRANSFER IN TRICKLING FILTERS By BruceE. Logan~ ABSTRACT: Insufficientoxygen transfer can result in anaerobic biofilmsand odor generation during biochemicaloxygen demand (BOD) removal plastic media trickling filters occurs by diffusion of oxygen through thin fluid films, previous models

  6. Logan County Coop Power & Light | Open Energy Information

    Open Energy Info (EERE)

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

  7. Energy Conservation Design Features of the ARCO Metals Logan County Aluminum Process Complex

    E-Print Network [OSTI]

    Speer, J. A.

    1983-01-01T23:59:59.000Z

    ARCO Metals Company (Formerly Anaconda Aluminum Company) is proceeding as scheduled with the construction of a $400 Million aluminum processing complex in Logan County, Kentucky. When the initial construction phase is completed in the Fall 1983...

  8. Signature Crossroads

    E-Print Network [OSTI]

    Chong, Puifai Cyril

    1997-01-01T23:59:59.000Z

    Signature Crossroads, an urban form that grows out of an street intersection, combines both the sense of "transit" and the sense of "destination." Such dual character gives Signature Crossroads a superiority over traditional ...

  9. *Corresponding author. Tel.: +1 814 863 7908; fax: +1 814 863 7304. E-mail address: blogan@psu.edu (B.E. Logan).

    E-Print Network [OSTI]

    @psu.edu (B.E. Logan). SUPPORTING INFORMATION Treatability studies on different refinery wastewater samples/HBOD for the different refinery wastewater samples, with domestic wastewater (DW) as a positive control. #12;3 0 20 40 60 removal rate and removal efficiency of the refinery and domestic wastewaters (WW), the 50:50 refinery

  10. Multiple Test Procedures for Identifying the Minimum Effective and Maximum Safe Doses of Author(s): Ajit C. Tamhane and Brent R. Logan

    E-Print Network [OSTI]

    Bustamante, Fabin E.

    Author(s): Ajit C. Tamhane and Brent R. Logan Source: Journal of the American Statistical Association, Vol. 97, No. 457 (Mar., 2002), pp. 293- 301 Published by: American Statistical Association Stable URL of scholarship. For more information about JSTOR, please contact support@jstor.org. American Statistical

  11. Science of Signatures Program

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

    Program Science of Signatures-Past Programs Contact Institute Director Charles Farrar (505) 663-5330 Email Professional Staff Assistant Jutta Kayser (505) 663-5649 Email...

  12. Operational Signature Schemes Michael Backes

    E-Print Network [OSTI]

    Operational Signature Schemes Michael Backes CISPA, Saarland University ¨Ozg¨ur Dagdelen TU] transferred the idea of functional encryption to signatures. They basically say that, with knowledge

  13. Delegatable Functional Signatures Michael Backes

    E-Print Network [OSTI]

    Delegatable Functional Signatures Michael Backes MPI-SWS Saarland University Germany Sebastian (from FS) . . . . 36 B Blind signatures 38 B.1 Basic security notions for blind signatures, such as the delegation of computation on authenticated data, the basic notion is insufficient. Consider as an example

  14. Original Signatures on File

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomass and Biofuels Biomass and OrganizationalOriginal Signatures

  15. Signatures of helical jets

    E-Print Network [OSTI]

    W. Steffen

    1996-11-18T23:59:59.000Z

    Observational signatures of helical jets can be found in some X-ray binaries (XRB), planetary nebulae, Herbig-Haro objects and in jets of active galactic nuclei (AGN). For the prototypical XRB SS433 a kinematic model of precessing jets has been applied very successfully and yielded a determination of its distance which is independent of conventional methods. In galactic jets precession appears to be the predominant mechanism for the production of observed helical signatures. In extragalactic jets other mechanisms seem to be similarly frequent. As a result of their strong dependence on the direction of motion with respect to the observer, special relativistic effects can be pronounced in helical jets. These have to be taken into account in AGN-jets and the newly discovered galactic sources which show apparent superluminal motion. Since the galactic superluminal jets are located in a binary system, jet precession is very likely in these sources. In this paper I review the main structural and kinematic signatures of helical jets and briefly mention the physical mechanisms behind them. I will present kinematic simulations of relativistic jets which are helically bent or have an internal helical flow field.

  16. Signature CERN-URSS

    ScienceCinema (OSTI)

    None

    2011-04-25T23:59:59.000Z

    Le DG W.Jentschke souhaite la bienvenue l'assemble et aux invits pour la signature du protocole entre le Cern et l'URSS qui est un vnement important. C'est en 1955 que 55 visiteurs sovitiques ont visit le Cern pour la premire fois. Le premier DG au Cern, F.Bloch, et Mons.Amaldi sont aussi prsents. Tandis que le discours anglais de W.Jentschke est traduit en russe, le discours russe de Mons.Morozov est traduit en anglais.

  17. Science of Signatures

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebook Twitter Principalfuel cells"03, 2008 »Science of Signatures

  18. LOOK FOR THE SIGNATURE 1 Look for the Signature: How the Infusion of Personal Signatures Affects Product Evaluations and

    E-Print Network [OSTI]

    Shyu, Mei-Ling

    LOOK FOR THE SIGNATURE 1 Look for the Signature: How the Infusion of Personal Signatures Affects Product Evaluations and Purchase Behavior Abstract Brand managers often infuse personal signatures. The infusion of a personal signature into marketing stimuli thus influences consumption behavior by (1

  19. On the Signature Scheme TTMs

    E-Print Network [OSTI]

    2006-03-16T23:59:59.000Z

    Mar 16, 2006 ... security standards for low-cost smart-card applications in the following table,. Scheme. Signature Publ-key Priv-key. Setup Signing Verifying.

  20. The Science of Signatures Program

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

    Signatures Program Application Process How to Apply Contact Institute Director Charles Farrar (505) 663-5330 Email Professional Staff Assistant Jutta Kayser (505) 663-5649 Email...

  1. 2014 Science of Signatures Program

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

    2014 Science of Signatures Program and Resources Contact Institute Director Charles Farrar (505) 663-5330 Email Professional Staff Assistant Jutta Kayser (505) 663-5649 Email...

  2. INTEGRATED APPLICATION Page 1 ----------------------------SIGNATURE APPLICANT & DATE

    E-Print Network [OSTI]

    de Villiers, Marienne

    -Scientific / Veterinarian Sell / Trade / Buy / Receive / Donate Research #12;INTEGRATED APPLICATION Page 2 WEAPON (vii) HUNTING METHOD I. SIGNATURE OF APPLICANT / PROPERTY / LAND OWNER: Signature Date #12;

  3. Quantum Signatures of Spacetime Graininess Quantum Signatures of Spacetime

    E-Print Network [OSTI]

    Quantum Field Theory on Noncommutative Spacetime Implementing Poincar Symmetry Hopf Algebras, Drinfel Quantum Mechanics on Noncommutative Spacetime 4 Quantum Field Theory on Noncommutative Spacetime Covariant Derivatives and Field Strength Noncommutative Gauge Theories 6 Signatures of Spin

  4. Intrusion detection using secure signatures

    DOE Patents [OSTI]

    Nelson, Trent Darnel; Haile, Jedediah

    2014-09-30T23:59:59.000Z

    A method and device for intrusion detection using secure signatures comprising capturing network data. A search hash value, value employing at least one one-way function, is generated from the captured network data using a first hash function. The presence of a search hash value match in a secure signature table comprising search hash values and an encrypted rule is determined. After determining a search hash value match, a decryption key is generated from the captured network data using a second hash function, a hash function different form the first hash function. One or more of the encrypted rules of the secure signatures table having a hash value equal to the generated search hash value are then decrypted using the generated decryption key. The one or more decrypted secure signature rules are then processed for a match and one or more user notifications are deployed if a match is identified.

  5. 2015 Science of Signatures Program

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

    of Signatures program will run April 13-May 1, 2015 Contact Institute Director Charles Farrar (505) 663-5330 Email Professional Staff Assistant Jutta Kayser (505) 663-5649 Email...

  6. Signature molecular descriptor : advanced applications.

    SciTech Connect (OSTI)

    Visco, Donald Patrick, Jr. (Tennessee Technological University, Cookeville, TN)

    2010-04-01T23:59:59.000Z

    In this work we report on the development of the Signature Molecular Descriptor (or Signature) for use in the solution of inverse design problems as well as in highthroughput screening applications. The ultimate goal of using Signature is to identify novel and non-intuitive chemical structures with optimal predicted properties for a given application. We demonstrate this in three studies: green solvent design, glucocorticoid receptor ligand design and the design of inhibitors for Factor XIa. In many areas of engineering, compounds are designed and/or modified in incremental ways which rely upon heuristics or institutional knowledge. Often multiple experiments are performed and the optimal compound is identified in this brute-force fashion. Perhaps a traditional chemical scaffold is identified and movement of a substituent group around a ring constitutes the whole of the design process. Also notably, a chemical being evaluated in one area might demonstrate properties very attractive in another area and serendipity was the mechanism for solution. In contrast to such approaches, computer-aided molecular design (CAMD) looks to encompass both experimental and heuristic-based knowledge into a strategy that will design a molecule on a computer to meet a given target. Depending on the algorithm employed, the molecule which is designed might be quite novel (re: no CAS registration number) and/or non-intuitive relative to what is known about the problem at hand. While CAMD is a fairly recent strategy (dating to the early 1980s), it contains a variety of bottlenecks and limitations which have prevented the technique from garnering more attention in the academic, governmental and industrial institutions. A main reason for this is how the molecules are described in the computer. This step can control how models are developed for the properties of interest on a given problem as well as how to go from an output of the algorithm to an actual chemical structure. This report provides details on a technique to describe molecules on a computer, called Signature, as well as the computer-aided molecule design algorithm built around Signature. Two applications are provided of the CAMD algorithm with Signature. The first describes the design of green solvents based on data in the GlaxoSmithKline (GSK) Solvent Selection Guide. The second provides novel non-steroidal glucocorticoid receptor ligands with some optimally predicted properties. In addition to using the CAMD algorithm with Signature, it is demonstrated how to employ Signature in a high-throughput screening study. Here, after classifying both active and inactive inhibitors for the protein Factor XIa using Signature, the model developed is used to screen a large, publicly-available database called PubChem for the most active compounds.

  7. Graph Analytics for Signature Discovery

    SciTech Connect (OSTI)

    Hogan, Emilie A.; Johnson, John R.; Halappanavar, Mahantesh; Lo, Chaomei

    2013-06-01T23:59:59.000Z

    Within large amounts of seemingly unstructured data it can be diffcult to find signatures of events. In our work we transform unstructured data into a graph representation. By doing this we expose underlying structure in the data and can take advantage of existing graph analytics capabilities, as well as develop new capabilities. Currently we focus on applications in cybersecurity and communication domains. Within cybersecurity we aim to find signatures for perpetrators using the pass-the-hash attack, and in communications we look for emails or phone calls going up or down a chain of command. In both of these areas, and in many others, the signature we look for is a path with certain temporal properties. In this paper we discuss our methodology for finding these temporal paths within large graphs.

  8. Signature of Dennis Donati Signature of Dennis Donati Signature of Douglas Dearolph

    National Nuclear Security Administration (NNSA)

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

  9. Signature of Paul Hommert Signature of Paul Hommert Signature of Paul Hommert

    National Nuclear Security Administration (NNSA)

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

  10. Signature of Paul Hommert Signature of Paul Hommert Signature of Paul Hommert

    National Nuclear Security Administration (NNSA)

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

  11. Group Blind Digital Signatures: Theory and Applications

    E-Print Network [OSTI]

    Goldwasser, Shafi

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

  12. Group Blind Digital Signatures: Theory and Applications

    E-Print Network [OSTI]

    Goldwasser, Shafi

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

  13. NREL: Energy Analysis - Jeffrey Logan

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Saleshttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gifNRELPower SystemsDebbie Brodt-GilesGarvinJay

  14. Signature of Edward Bruce Held Signature of Edward Bruce Held

    National Nuclear Security Administration (NNSA)

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

  15. Signature of Edward Bruce Held Signature of Edward Bruce Held

    National Nuclear Security Administration (NNSA)

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

  16. Signature of Penrose Albright Signature of Penrose Albright

    National Nuclear Security Administration (NNSA)

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

  17. Signature of R. Wallis Spangler Signature of R. Wallis Spangler

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature ofMarkR. Wallis

  18. Signature of Raymond Juzaitis Signature of Raymond Juzaitis

    National Nuclear Security Administration (NNSA)

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

  19. Signature of William H. Goldstein Signature of William H. Goldstein

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature ofMarkR.RobertWilliam

  20. Signature

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest|Scoping2

  1. Signature of Edward Bruce Held

    National Nuclear Security Administration (NNSA)

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

  2. Dlgations de signature Vous trouverez ci-dessous les arrts de dlgation de signature en vigueur

    E-Print Network [OSTI]

    Di Girolami, Cristina

    ) Arrt de dlgation de signature consenti Anne-Marie RIOU, Roland TESNIERE, Denise LE TOUX et Damien

  3. Signature of Darby Dietrich Signature of Raymond Juzaitis Signature of Raymond Juzaitis

    National Nuclear Security Administration (NNSA)

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

  4. Signature of Dennis Donati Signature of Dennis Donati Signature of Doug Dearolph

    National Nuclear Security Administration (NNSA)

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

  5. Signature of Edward B. Held Signature of Edward B. Held Signature of Edward B. Held

    National Nuclear Security Administration (NNSA)

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

  6. Signature of Edward Held Signature of Edward Held Signature of Edward Held

    National Nuclear Security Administration (NNSA)

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

  7. Signature of George Miller Signature of George Miller Signature of Alice Williams

    National Nuclear Security Administration (NNSA)

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

  8. Signature of Madelyn Creedon Signature of Madelyn Creedon Signature of Madelyn Creedon

    National Nuclear Security Administration (NNSA)

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

  9. Signature of Madelyn Creedon Signature of Madelyn Creedon Signature of Madelyn Creedon

    National Nuclear Security Administration (NNSA)

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

  10. Signature of Madelyn Creedon Signature of Madelyn Creedon Signature of Madelyn Creedon

    National Nuclear Security Administration (NNSA)

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

  11. Signature of Madelyn Creedon Signature of Madelyn Creedon Signature of Madelyn Creedon

    National Nuclear Security Administration (NNSA)

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

  12. Signature of Madelyn Creedon Signature of Madelyn Creedon Signature of Madelyn Creedon

    National Nuclear Security Administration (NNSA)

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

  13. Signature of Mark Holecek Signature of Mark Holecek Signature of Ralph B Tennants II

    National Nuclear Security Administration (NNSA)

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

  14. Signature of Paul Hommert Signature of Paul Hommert Signature of Paul Hommert

    National Nuclear Security Administration (NNSA)

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

  15. Signature of Robert Poole Signature of Robert Poole Signature of Robert Poole

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature ofMarkR.Robert Poole

  16. Signature of Seb Klein Signature of Seb Klein Signature of Steven Erhart

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature ofMarkR.Robert

  17. Ecient Blind and Partially Blind Signatures Without Random Oracles

    E-Print Network [OSTI]

    Ecient Blind and Partially Blind Signatures Without Random Oracles Tatsuaki Okamoto NTT eective in many applications (e.g., blind signatures, group signatures, anonymous credentials etc.) than, this paper presents ecient blind signatures and par- tially blind signatures that are secure in the standard

  18. Efficient Blind and Partially Blind Signatures Without Random Oracles

    E-Print Network [OSTI]

    Efficient Blind and Partially Blind Signatures Without Random Oracles Tatsuaki Okamoto NTT effective in many applications (e.g., blind signatures, group signatures, anonymous credentials etc.) than, this paper presents efficient blind signatures and par tially blind signatures that are secure

  19. Signatures of Correct Computation Charalampos Papamanthou

    E-Print Network [OSTI]

    also show that signatures of correct computation imply Publicly Verifiable Computation (PVC), a model client can verify the signature and be convinced of some computation result, whereas in the PVC model to construct PVC schemes with adaptive security, efficient updates and without the random oracle model. 1

  20. Signature Program/Landmark Research Programs

    E-Print Network [OSTI]

    Signature Program/Landmark Research Programs for the College of Veterinary Medicine and Biomedical Sciences November 20, 2008 #12;SIGNATURE PROGRAM PROPOSAL: CARDIOVASCULAR SCIENCES/DEBAKEY INSTITUTE in Figure 1 to identify the participants in the cardiovascular science program and the central role

  1. Self-adjoint extensions and Signature Change

    E-Print Network [OSTI]

    I. L. Egusquiza

    1995-03-08T23:59:59.000Z

    We study the selfadjoint extensions of the spatial part of the D'Alembert operator in a spacetime with two changes of signature. We identify a set of boundary conditions, parametrised by U(2) matrices, which correspond to Dirichlet boundary conditions for the fields, and from which we argue against the suggestion that regions of signature change can isolate singularities.

  2. Machine Learning for Signature Verification Harish Srinivasan

    E-Print Network [OSTI]

    types of learning to be accomplished. In the first, the training set consists of genuines and forgeriesMachine Learning for Signature Verification Harish Srinivasan , Sargur N. Srihari and Matthew J it can be viewed as one that involves machine learning from a population of signatures. There are two

  3. Real time gamma-ray signature identifier

    DOE Patents [OSTI]

    Rowland, Mark (Alamo, CA); Gosnell, Tom B. (Moraga, CA); Ham, Cheryl (Livermore, CA); Perkins, Dwight (Livermore, CA); Wong, James (Dublin, CA)

    2012-05-15T23:59:59.000Z

    A real time gamma-ray signature/source identification method and system using principal components analysis (PCA) for transforming and substantially reducing one or more comprehensive spectral libraries of nuclear materials types and configurations into a corresponding concise representation/signature(s) representing and indexing each individual predetermined spectrum in principal component (PC) space, wherein an unknown gamma-ray signature may be compared against the representative signature to find a match or at least characterize the unknown signature from among all the entries in the library with a single regression or simple projection into the PC space, so as to substantially reduce processing time and computing resources and enable real-time characterization and/or identification.

  4. Testing, Training, and Signature Devices | Y-12 National Security...

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

    Testing, Training, and ... Testing, Training, and Signature Devices Y-12 manufactures specialized uranium testing, training, and signature devices to support the nuclear detection...

  5. Reactor power history from fission product signatures

    E-Print Network [OSTI]

    Sweeney, David J.

    2009-05-15T23:59:59.000Z

    The purpose of this research was to identify fission product signatures that could be used to uniquely identify a specific spent fuel assembly in order to improve international safeguards. This capability would help prevent and deter potential...

  6. Forecasting Seismic Signatures of Stellar Magnetic Activity

    E-Print Network [OSTI]

    W. A. Dziembowski

    2007-09-17T23:59:59.000Z

    For the Sun, a tight correlation between various activity measures and oscillation frequencies is well documented. For other stars, we have abundant data on magnetic activity and its changes but not yet on its seismic signature. A prediction of the activity induced frequency changes in stars based on scaling the solar relations is presented. This seismic signature of the activity should be measurable in the data expected within few years.

  7. Chemical and Physical Signatures for Microbial Forensics

    SciTech Connect (OSTI)

    Cliff, John B.; Kreuzer, Helen W.; Ehrhardt, Christopher J.; Wunschel, David S.

    2012-01-03T23:59:59.000Z

    Chemical and physical signatures for microbial forensics John Cliff and Helen Kreuzer-Martin, eds. Humana Press Chapter 1. Introduction: Review of history and statement of need. Randy Murch, Virginia Tech Chapter 2. The Microbe: Structure, morphology, and physiology of the microbe as they relate to potential signatures of growth conditions. Joany Jackman, Johns Hopkins University Chapter 3. Science for Forensics: Special considerations for the forensic arena - quality control, sample integrity, etc. Mark Wilson (retired FBI): Western Carolina University Chapter 4. Physical signatures: Light and electron microscopy, atomic force microscopy, gravimetry etc. Joseph Michael, Sandia National Laboratory Chapter 5. Lipids: FAME, PLFA, steroids, LPS, etc. James Robertson, Federal Bureau of Investigation Chapter 6. Carbohydrates: Cell wall components, cytoplasm components, methods Alvin Fox, University of South Carolina School of Medicine David Wunschel, Pacific Northwest National Laboratory Chapter 7. Peptides: Peptides, proteins, lipoproteins David Wunschel, Pacific Northwest National Laboratory Chapter 8. Elemental content: CNOHPS (treated in passing), metals, prospective cell types John Cliff, International Atomic Energy Agency Chapter 9. Isotopic signatures: Stable isotopes C,N,H,O,S, 14C dating, potential for heavy elements. Helen Kreuzer-Martin, Pacific Northwest National Laboratory Michaele Kashgarian, Lawrence Livermore National Laboratory Chapter 10. Extracellular signatures: Cellular debris, heme, agar, headspace, spent media, etc Karen Wahl, Pacific Northwest National Laboratory Chapter 11. Data Reduction and Integrated Microbial Forensics: Statistical concepts, parametric and multivariate statistics, integrating signatures Kristin Jarman, Pacific Northwest National Laboratory

  8. Cryptanalysis of the arbitrated quantum signature protocols

    SciTech Connect (OSTI)

    Gao Fei; Qin Sujuan; Guo Fenzhuo; Wen Qiaoyan [State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876 (China)

    2011-08-15T23:59:59.000Z

    As a new model for signing quantum messages, arbitrated quantum signature (AQS) has recently received a lot of attention. In this paper we study the cryptanalysis of previous AQS protocols from the aspects of forgery and disavowal. We show that in these protocols the receiver, Bob, can realize existential forgery of the sender's signature under known message attack. Bob can even achieve universal forgery when the protocols are used to sign a classical message. Furthermore, the sender, Alice, can successfully disavow any of her signatures by simple attack. The attack strategies are described in detail and some discussions about the potential improvements of the protocols are given. Finally we also present several interesting topics on AQS protocols that can be studied in future.

  9. Security problem on arbitrated quantum signature schemes

    E-Print Network [OSTI]

    Jeong Woon Choi; Ku-Young Chang; Dowon Hong

    2011-06-27T23:59:59.000Z

    Until now, there have been developed many arbitrated quantum signature schemes implemented with a help of a trusted third party. In order to guarantee the unconditional security, most of them take advantage of the optimal quantum one-time encryption method based on Pauli operators. However, we in this paper point out that the previous schemes only provides a security against total break and actually show that there exists a simple existential forgery attack to validly modify the transmitted pair of message and signature. In addition, we also provide a simple method to recover the security against the proposed attack.

  10. Security problem on arbitrated quantum signature schemes

    SciTech Connect (OSTI)

    Choi, Jeong Woon [Emerging Technology R and D Center, SK Telecom, Kyunggi 463-784 (Korea, Republic of); Chang, Ku-Young; Hong, Dowon [Cryptography Research Team, Electronics and Telecommunications Research Institute, Daejeon 305-700 (Korea, Republic of)

    2011-12-15T23:59:59.000Z

    Many arbitrated quantum signature schemes implemented with the help of a trusted third party have been developed up to now. In order to guarantee unconditional security, most of them take advantage of the optimal quantum one-time encryption based on Pauli operators. However, in this paper we point out that the previous schemes provide security only against a total break attack and show in fact that there exists an existential forgery attack that can validly modify the transmitted pair of message and signature. In addition, we also provide a simple method to recover security against the proposed attack.

  11. Energy Signatures: a proposed new design tool

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1986-04-01T23:59:59.000Z

    Energy Signatures is a proposed new technique for aiding a designer in selecting and sizing passive solar elements on a building. Hourly heat flux profiles for each candidate design element are determined. These profiles are then matched to the hourly energy requirement of the space accounting for weather conditions, internal heat profiles of the space, and the mass characteristics of the building. Simulation analysis techniques are used to determine the Energy Signatures, the load profiles, and check the final result. Least-squares techniques are used to determine the optimum mix of strategies. Examples are given to illustrate development of the method up to the present. Future directions and possibilities are outlined.

  12. Signature of Paul J. HommertSignature of Paul J. Hommert Signature of Paul J. HommertSignature of Paul J. Hommert

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature ofMark SignatureJ.

  13. VICE CHANCELLOR Signature of Head of School

    E-Print Network [OSTI]

    Tobar, Michael

    VICE CHANCELLOR Signature of Head of School Date (dd/mm/yy) Following is a report on the professional and consultative work of my School/section over the twelve months of (year) School/Section One. Yes No (Nil Return) Total number of staff within School/Section at year end who are eligible to engage

  14. EMPLOYEE BENEFIT SERVICE Signature Service Oil Change

    E-Print Network [OSTI]

    New Mexico, University of

    UNM Staff EMPLOYEE BENEFIT SERVICE Jiffy Lube Signature Service Oil Change Fast - No Appointment We change your oil with up to 5 quarts of major brand motor oil We install a new oil fi We visually inspect. ASE training programs Jiffy Lube uses top quality products that meet or exceed vehicle warranty

  15. Lattice-based Blind Signatures Markus Ruckert

    E-Print Network [OSTI]

    assumptions change with the leap in computing power that quantum computers will provide. There are only a few exponentiation and lattice problems remain hard for quantum and subexponential-time adversaries. Generally. Keywords. Blind signatures, post-quantum, lattices, provable security, leakage resilience This work

  16. New online signature acquisition system Adel Oulefki

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    involve the following operations: Dynamic signature acquisition. Data pretreatment (adapted, they are relatively more expensive and require more dedicated material for the exploitation of acquired data. Other types of acquisition systems based on a data glove (conceived initially for virtual reality) have also

  17. Geometry of Killing spinors in neutral signature

    E-Print Network [OSTI]

    Dietmar Klemm; Masato Nozawa

    2015-04-21T23:59:59.000Z

    We classify the supersymmetric solutions of minimal $N=2$ gauged supergravity in four dimensions with neutral signature. They are distinguished according to the sign of the cosmological constant and whether the vector field constructed as a bilinear of the Killing spinor is null or non-null. In neutral signature the bilinear vector field can be spacelike, which is a new feature not arising in Lorentzian signature. In the $\\Lambdatorsion. We find that a generalized monopole equation determines the twist of the bilinear Killing field, which is reminiscent of an Einstein-Weyl structure. If, moreover, the electromagnetic field strength is self-dual, one gets the Kleinian signature analogue of the Przanowski-Tod class of metrics, namely a pseudo-hermitian spacetime determined by solutions of the continuous Toda equation, conformal to a scalar-flat pseudo-K\\"ahler manifold, and admitting in addition a charged conformal Killing spinor. In the $\\Lambda0$ non-null case, the manifold is a fibration over a Lorentzian Gauduchon-Tod base space. Finally, in the $\\Lambda>0$ null class, the metric is contained in the Kundt family, and it turns out that the holonomy is reduced to ${\\rm Sim}(1)\\times{\\rm Sim}(1)$. There appear no self-dual solutions in the null class for either sign of the cosmological constant.

  18. Signatures of black holes at the LHC

    E-Print Network [OSTI]

    Marco Cavaglia; Romulus Godang; Lucien M. Cremaldi; Donald J. Summers

    2007-07-02T23:59:59.000Z

    Signatures of black hole events at CERN's Large Hadron Collider are discussed. Event simulations are carried out with the Fortran Monte Carlo generator CATFISH. Inelasticity effects, exact field emissivities, color and charge conservation, corrections to semiclassical black hole evaporation, gravitational energy loss at formation and possibility of a black hole remnant are included in the analysis.

  19. Methods and apparatus for multi-parameter acoustic signature inspection

    DOE Patents [OSTI]

    Diaz, Aaron A. (Richland, WA); Samuel, Todd J. (Pasco, WA); Valencia, Juan D. (Kennewick, WA); Gervais, Kevin L. (Richland, WA); Tucker, Brian J. (Pasco, WA); Kirihara, Leslie J. (Richland, WA); Skorpik, James R. (Kennewick, WA); Reid, Larry D. (Benton City, WA); Munley, John T. (Benton City, WA); Pappas, Richard A. (Richland, WA); Wright, Bob W. (West Richland, WA); Panetta, Paul D. (Richland, WA); Thompson, Jason S. (Richland, WA)

    2007-07-24T23:59:59.000Z

    A multiparameter acoustic signature inspection device and method are described for non-invasive inspection of containers. Dual acoustic signatures discriminate between various fluids and materials for identification of the same.

  20. Equivocal Blind Signatures and Adaptive UC-Security Aggelos Kiayias

    E-Print Network [OSTI]

    Equivocal Blind Signatures and Adaptive UC-Security Aggelos Kiayias Hong-Sheng Zhou April 12, 2007 Abstract We study the design of practical blind signatures in the universal composability (UC) setting against adaptive adversaries. We introduce a new property for blind signature schemes

  1. Automated Discovery of Structural Signatures of Protein Fold and Function

    E-Print Network [OSTI]

    Muggleton, Stephen H.

    Automated Discovery of Structural Signatures of Protein Fold and Function Marcel Turcotte1 sys- tematically for protein fold signatures, we have explored the use of Inductive Logic Programming fold. The work showed that signatures of protein folds exist, about half of rules discov- ered

  2. Data Mining to Characterize Signatures of Impending System Events

    E-Print Network [OSTI]

    Data Mining to Characterize Signatures of Impending System Events or Performance from PMU the Future Electric Energy System #12;#12;Data Mining to Characterize Signatures of Impending System Events Mining to Characterize Signatures of Impending System Events or Performance from PMU Measurements

  3. Optimum Signature Sequence Sets for Asynchronous CDMA Systems

    E-Print Network [OSTI]

    Ulukus, Sennur

    Optimum Signature Sequence Sets for Asynchronous CDMA Systems Sennur Ulukus AT&T Labs on the delay profile of the users, we identify a class of optimum signature sequences that achieve a lower. Further, when the optimum signature sequences are used, the users' received powers are all equal and the M

  4. Electronic Signature of DNA Nucleotides via Transverse Transport

    E-Print Network [OSTI]

    Zwolak, Michael

    Electronic Signature of DNA Nucleotides via Transverse Transport Michael Zwolak Physics Department spatial width, each nucleotide carries a unique signature due to the different electronic and chemical structure of the four bases. This signature is independent of the nearest-neighbor nucleotides. Furthermore

  5. Energy Signatures: A passive solar design tool

    SciTech Connect (OSTI)

    Balcomb, J.D.; Lekov, A.B.

    1987-12-01T23:59:59.000Z

    Energy signatures is a new technique for aiding a designer in selecting and sizing passive solar elements in a building. Hourly heat flux profiles for each candidate design element are determined. These profiles are then matched to the hourly energy requirement of the space accounting for weather conditions, internal heat profiles of the space, and the mass characteristics of the building. Simulation analysis techniques are used to determine the energy signatures and the building load profile, and to check the final result. Least-squares techniques are used to determine the optimum mix of strategies. Examples are given to illustrate development of the method up to the present time. In addition, future directions and possibilities are outlined. 5 refs., 28 figs., 3 tabs.

  6. Radar echo signatures versus relative precipitation

    E-Print Network [OSTI]

    Huber, Terry Alvin

    1987-01-01T23:59:59.000Z

    the relationship between cell-echo signatures and precipitation characteristics, and to support the hypothesis that, during the lifespan of any particular isolated convective cell, the relative rainfall rate, as determined by radar for a given volume scan... Cooperative Program) field experiment of 1979. Four isolated cases, two rainshowers and two thundershowers, were selected for study. Profiles from volume scans taken 10 minutes before, during, and 10 minutes after the maximum radar-determined rainfall rate...

  7. Identification of host response signatures of infection.

    SciTech Connect (OSTI)

    Branda, Steven S.; Sinha, Anupama; Bent, Zachary

    2013-02-01T23:59:59.000Z

    Biological weapons of mass destruction and emerging infectious diseases represent a serious and growing threat to our national security. Effective response to a bioattack or disease outbreak critically depends upon efficient and reliable distinguishing between infected vs healthy individuals, to enable rational use of scarce, invasive, and/or costly countermeasures (diagnostics, therapies, quarantine). Screening based on direct detection of the causative pathogen can be problematic, because culture- and probe-based assays are confounded by unanticipated pathogens (e.g., deeply diverged, engineered), and readily-accessible specimens (e.g., blood) often contain little or no pathogen, particularly at pre-symptomatic stages of disease. Thus, in addition to the pathogen itself, one would like to detect infection-specific host response signatures in the specimen, preferably ones comprised of nucleic acids (NA), which can be recovered and amplified from tiny specimens (e.g., fingerstick draws). Proof-of-concept studies have not been definitive, however, largely due to use of sub-optimal sample preparation and detection technologies. For purposes of pathogen detection, Sandia has developed novel molecular biology methods that enable selective isolation of NA unique to, or shared between, complex samples, followed by identification and quantitation via Second Generation Sequencing (SGS). The central hypothesis of the current study is that variations on this approach will support efficient identification and verification of NA-based host response signatures of infectious disease. To test this hypothesis, we re-engineered Sandia's sophisticated sample preparation pipelines, and developed new SGS data analysis tools and strategies, in order to pioneer use of SGS for identification of host NA correlating with infection. Proof-of-concept studies were carried out using specimens drawn from pathogen-infected non-human primates (NHP). This work provides a strong foundation for large-scale, highly-efficient efforts to identify and verify infection-specific host NA signatures in human populations.

  8. Plasmon signatures in high harmonic generation

    E-Print Network [OSTI]

    J. Zanghellini; Ch. Jungreuthmayer; T. Brabec

    2005-12-12T23:59:59.000Z

    High harmonic generation in polarizable multi-electron systems is investigated in the framework of multi-configuration time-dependent Hartree-Fock. The harmonic spectra exhibit two cut offs. The first cut off is in agreement with the well established, single active electron cut off law. The second cut off presents a signature of multi-electron dynamics. The strong laser field excites non-linear plasmon oscillations. Electrons that are ionized from one of the multi-plasmon states and recombine to the ground state gain additional energy, thereby creating the second plateau.

  9. Water quality parameter measurement using spectral signatures

    E-Print Network [OSTI]

    White, Paul Edward

    1973-01-01T23:59:59.000Z

    the photography, and Richard Carter of the Data Processing Center of Texas A4M who digitized the scanner data. As- sistance in preparing and editing the manuscript were provided by my committee members, Dr. W. P. James, and Dr. J. P, German, with special... water shown in figure I-1. I=rom cultures of various phytoplankton, he obtained the signatures shown in figure I-2. Figures I- 1 (P. 10) and I- 2 (p . II) indicate that water has a minimum attenuation and phytoplankton a maximum attenuation at short...

  10. Experimental signatures of cosmological neutrino condensation

    E-Print Network [OSTI]

    Mofazzal Azam; Jitesh R. Bhatt; Utpal Sarkar

    2010-11-02T23:59:59.000Z

    Superfluid condensation of neutrinos of cosmological origin at a low enough temperature can provide simple and elegant solution to the problems of neutrino oscillations and the accelerated expansion of the universe. It would give rise to a late time cosmological constant of small magnitude and also generate tiny Majorana masses for the neutrinos as observed from their flavor oscillations. We show that carefully prepared beta decay experiments in the laboratory would carry signatures of such a condensation, and thus, it would be possible to either establish or rule out neutrino condensation of cosmological scale in laboratory experiments.

  11. Help:Signatures | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG|InformationInformation Station - South IcelandImagesSignatures

  12. Statistical signatures of critical behavior in small systems

    E-Print Network [OSTI]

    J. B. Elliott; the EOS Collaboration

    2000-02-09T23:59:59.000Z

    The cluster distributions of different systems are examined to search for signatures of a continuous phase transition. In a system known to possess such a phase transition, both sensitive and insensitive signatures are present; while in systems known not to possess such a phase transition, only insensitive signatures are present. It is shown that nuclear multifragmentation results in cluster distributions belonging to the former category, suggesting that the fragments are the result of a continuous phase transition.

  13. Integrated Molecular Signature of Disease: Analysis of Influenza...

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

    of Disease: Analysis of Influenza Virus-Infected Macaques through Functional Genomics and Integrated Molecular Signature of Disease: Analysis of Influenza Virus-Infected...

  14. Predicting cancer drug mechanisms of action using molecular network signatures

    E-Print Network [OSTI]

    Pritchard, Justin R.

    2013-01-01T23:59:59.000Z

    Molecular signatures are a powerful approach to characterize novel small molecules and derivatized small molecule libraries. While new experimental techniques are being developed in diverse model systems, informatics ...

  15. JAZZAT THE LOGAN Hear the world's best

    E-Print Network [OSTI]

    Scherer, Norbert F.

    Jazz Festival FRIDAY, FEBRUARY 13 / 7:30 PM Tigran Hamasyan Trio Tigran Hamasyan, piano; Sam Minaie playing calls up images of legendary jazz pianists like Keith Jarrett, Thelonious Monk and Art Tatum. "His

  16. Logan, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  17. New Blind Signatures Equivalent to Factorization (Extended Abstract)

    E-Print Network [OSTI]

    Pointcheval, David

    New Blind Signatures Equivalent to Factorization (Extended Abstract) David Pointcheval Jacques Stern Abstract In this paper, we present new blind signature schemes based on the factorization problem. They are the first blind sig- nature schemes proved secure relatively to factorization. By security, we mean

  18. Network signatures of nuclear and cytoplasmic density alterations in a

    E-Print Network [OSTI]

    Staum, Jeremy

    Network signatures of nuclear and cytoplasmic density alterations in a model of pre://biomedicaloptics.spiedigitallibrary.org/ on 06/24/2014 Terms of Use: http://spiedl.org/terms #12;Network signatures of nuclear and cytoplasmic cytoplasmic and nuclear structural altera- tions that accompany their aberrant genetic, epigenetic

  19. Execution Trace-Driven Automated Attack Signature Generation Susanta Nanda

    E-Print Network [OSTI]

    Chiueh, Tzi-cker

    Execution Trace-Driven Automated Attack Signature Generation Susanta Nanda Symantec Research Labs In its most general form, an attack signature is a program that can correctly determine if an input network packet se- quence can successfully attack a protected network appli- cation. Filter rules used

  20. Mitigating the Untrusted Terminal Problem Using Conditional Signatures

    E-Print Network [OSTI]

    Bencsth, Boldizsr

    Mitigating the Untrusted Terminal Problem Using Conditional Signatures Istvn Zsolt BERTA Levente be a user generating an elec- tronic check at a merchant's terminal in a shop. The danger is that the terminal can obtain a signature from the card on an arbitrarily chosen document, that is different from

  1. Human action categorization using ultrasound micro-Doppler signatures

    E-Print Network [OSTI]

    Wennekers, Thomas

    of a wave radiated or scattered by the object. This is known as the Doppler effect. If the object frequency shift, known as the micro-Doppler effect. The micro-Doppler signature enables to determineHuman action categorization using ultrasound micro-Doppler signatures Salvador Dura-Bernal1

  2. Modelling Uncertain Aspects of System Dependability with Survival Signatures

    E-Print Network [OSTI]

    Coolen, Frank

    Modelling Uncertain Aspects of System Dependability with Survival Signatures Frank P.A. Coolen1.coolen,tahani.maturi}@durham.ac.uk Abstract. The survival signature was recently introduced to simplify quantification of reliability. 1 Introduction Mathematical theory of reliability has been well established since the middle

  3. Fully Anonymous Group Signatures without Random Oracles Jens Groth #

    E-Print Network [OSTI]

    signature schemes that avoid the random oracle model. Bellare, Micciancio and Warinschi [BMW03] suggested their scheme is not secure in the BMW/BSZ­models. Boyen and Waters [BW06, BW07] suggest group signatures that are secure against key exposure attacks. Their constructions are secure in a restricted version of the BMW

  4. A signature for turbulence driven magnetic islands

    SciTech Connect (OSTI)

    Agullo, O.; Muraglia, M.; Benkadda, S. [Aix-Marseille Universit, CNRS, PIIM, UMR 7345 Marseille (France); France-Japan Magnetic Fusion Laboratory, LIA 336 CNRS, Marseille (France); Poy, A. [Univ. Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France); Yagi, M. [Plasma Theory and Simulation Gr., JAEA, Rokkasho (Japan); Garbet, X. [IRFM, CEA, St-Paul-Lez-Durance 13108 (France); Sen, A. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)

    2014-09-15T23:59:59.000Z

    We investigate the properties of magnetic islands arising from tearing instabilities that are driven by an interchange turbulence. We find that such islands possess a specific signature that permits an identification of their origin. We demonstrate that the persistence of a small scale turbulence maintains a mean pressure profile, whose characteristics makes it possible to discriminate between turbulence driven islands from those arising due to an unfavourable plasma current density gradient. We also find that the island poloidal turnover time, in the steady state, is independent of the levels of the interchange and tearing energy sources. Finally, we show that a mixing length approach is adequate to make theoretical predictions concerning island flattening in the island rotation frame.

  5. Stable Isotope Signatures for Microbial Forensics

    SciTech Connect (OSTI)

    Kreuzer, Helen W.

    2012-01-03T23:59:59.000Z

    The isotopic distribution of the atoms composing the molecules of microorganisms is a function of the substrates used by the organisms. The stable isotope content of an organism is fixed so long as no further substrate consumption and biosynthesis occurs, while the radioactive isotopic content decays over time. The distribution of stable isotopes of C, N, O and H in heterotrophic microorganisms is a direct function of the culture medium, and therefore the stable isotope composition can be used to associate samples with potential culture media and also with one another. The 14C content depends upon the 14C content, and therefore the age, of the organic components of the culture medium, as well as on the age of the culture itself. Stable isotope signatures can thus be used for sample matching, to associate cultures with specific growth media, and to predict characteristics of growth media.

  6. On seismic signatures of rapid variation

    E-Print Network [OSTI]

    G. Houdek; D. O. Gough

    2006-12-01T23:59:59.000Z

    We present an improved model for an asteroseismic diagnostic contained in the frequency spacing of low-degree acoustic modes. By modelling in a realistic manner regions of rapid variation of dynamically relevant quantities, which we call acoustic glitches, we can derive signatures of the gross properties of those glitches. In particular, we are interested in measuring properties that are related to the helium ionization zones and to the rapid variation in the background state associated with the lower boundary of the convective envelope. The formula for the seismic diagnostic is tested against a sequence of theoretical models of the Sun, and is compared with seismic diagnostics published previously by Monteiro & Thompson (1998, 2005) and by Basu et al. (2004).

  7. Electromagnetic Signatures of Massive Black Hole Binaries

    E-Print Network [OSTI]

    Tamara Bogdanovic; Britton D. Smith; Michael Eracleous; Steinn Sigurdsson

    2006-09-28T23:59:59.000Z

    We model the electromagnetic emission signatures of massive black hole binaries (MBHBs) with an associated gas component. The method comprises numerical simulations of relativistic binaries and gas coupled with calculations of the physical properties of the emitting gas. We calculate the accretion powered UV/X-ray and Halpha light curves and the Halpha emission line profiles. The simulations have been carried out with a modified version of the parallel tree SPH code Gadget. The heating, cooling, and radiative processes for the solar metallicity gas have been calculated with the photoionization code Cloudy. We investigate gravitationally bound, sub-parsec binaries which have not yet entered the gravitational radiation phase. The results from the first set of calculations, carried out for a coplanar binary and gas disk, suggest that the outbursts in the X-ray light curve are pronounced during pericentric passages and can serve as a fingerprint for this type of binaries if periodic outbursts are a long lived signature of the binary. The Halpha emission-line profiles also offer strong indications of a binary presence and may be used as a criterion for selection of MBHB candidates for further monitoring from existing archival data. The orbital period and mass ratio of a binary could be determined from the Halpha light curves and profiles of carefully monitored candidates. Although systems with the orbital periods studied here are not within the frequency band of the Laser Interferometer Space Antenna (LISA), their discovery is important for understanding of the merger rates of MBHBs and the evolution of such binaries through the last parsec and towards the detectable gravitational wave window.

  8. SciTech Connect: Development of Asset Fault Signatures for Prognostic...

    Office of Scientific and Technical Information (OSTI)

    Development of Asset Fault Signatures for Prognostic and Health Management in the Nuclear Industry Citation Details In-Document Search Title: Development of Asset Fault Signatures...

  9. INSTRUCTIONS e-Portal and MMIS Signature Authorization Form Surplus Property Program -MM-3S

    E-Print Network [OSTI]

    Oliver, Douglas L.

    For Materials & Logistics Management Use Only: Signatures: Date: Date: ____________________________________________________ 1. Authorized Materials & Logistics Management Signature/31/14 OFFICE MATERIALS & LOGISTICS MANAGEMENT (MLM) #12;

  10. Starry messages: Searching for signatures of interstellar archaeology

    SciTech Connect (OSTI)

    Carrigan, Richard A., Jr.; /Fermilab

    2009-12-01T23:59:59.000Z

    Searching for signatures of cosmic-scale archaeological artifacts such as Dyson spheres or Kardashev civilizations is an interesting alternative to conventional SETI. Uncovering such an artifact does not require the intentional transmission of a signal on the part of the original civilization. This type of search is called interstellar archaeology or sometimes cosmic archaeology. The detection of intelligence elsewhere in the Universe with interstellar archaeology or SETI would have broad implications for science. For example, the constraints of the anthropic principle would have to be loosened if a different type of intelligence was discovered elsewhere. A variety of interstellar archaeology signatures are discussed including non-natural planetary atmospheric constituents, stellar doping with isotopes of nuclear wastes, Dyson spheres, as well as signatures of stellar and galactic-scale engineering. The concept of a Fermi bubble due to interstellar migration is introduced in the discussion of galactic signatures. These potential interstellar archaeological signatures are classified using the Kardashev scale. A modified Drake equation is used to evaluate the relative challenges of finding various sources. With few exceptions interstellar archaeological signatures are clouded and beyond current technological capabilities. However SETI for so-called cultural transmissions and planetary atmosphere signatures are within reach.

  11. Tensor distributions on signature-changing space-times

    E-Print Network [OSTI]

    David Hartley; Robin W. Tucker; Philip A. Tuckey; Tevian Dray

    1997-01-21T23:59:59.000Z

    Irregularities in the metric tensor of a signature-changing space-time suggest that field equations on such space-times might be regarded as distributional. We review the formalism of tensor distributions on differentiable manifolds, and examine to what extent rigorous meaning can be given to field equations in the presence of signature-change, in particular those involving covariant derivatives. We find that, for both continuous and discontinuous signature-change, covariant differentiation can be defined on a class of tensor distributions wide enough to be physically interesting.

  12. Signature of Raymond J. JuzaitisSignature of Raymond J. Juzaitis

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature ofMarkR. WallisJ.

  13. ADVISORY ALERT: Dekker, Ltd. Digital Signature - PARS II...

    Energy Savers [EERE]

    so that you may continue working with PARS II reports. Please note: Once you complete the process of accepting the Dekker, LTd. digital signature, this warning will not re-appear....

  14. Practical Attacks on Digital Signatures Using MD5 Message Digest

    E-Print Network [OSTI]

    schemes based on MD5 message digest on an example using GPG. Keywords: collision, hash function, MD5 1 on digital signatures on an example using GPG (section 5) and finally an exam- ple of real-world attack

  15. Methyl-CpG island-associated genome signature tags

    DOE Patents [OSTI]

    Dunn, John J

    2014-05-20T23:59:59.000Z

    Disclosed is a method for analyzing the organismic complexity of a sample through analysis of the nucleic acid in the sample. In the disclosed method, through a series of steps, including digestion with a type II restriction enzyme, ligation of capture adapters and linkers and digestion with a type IIS restriction enzyme, genome signature tags are produced. The sequences of a statistically significant number of the signature tags are determined and the sequences are used to identify and quantify the organisms in the sample. Various embodiments of the invention described herein include methods for using single point genome signature tags to analyze the related families present in a sample, methods for analyzing sequences associated with hyper- and hypo-methylated CpG islands, methods for visualizing organismic complexity change in a sampling location over time and methods for generating the genome signature tag profile of a sample of fragmented DNA.

  16. Speculation without Oil Stockpiling as a Signature: A Dynamic Perspective

    E-Print Network [OSTI]

    Babusiaux, Denis

    According to the standard analysis of commodity prices, stockpiling is a necessary signature of speculation. This paper develops an approach suggesting that speculation may temporarily push crude oil prices above the level ...

  17. Conventional and Non-Conventional Nuclear Material Signatures

    SciTech Connect (OSTI)

    Gozani, Tsahi [Rapiscan Laboratories, Inc., 520 Almanor Ave., Sunnyvale, CA 94085 (United States)

    2009-03-10T23:59:59.000Z

    The detection and interdiction of concealed special nuclear material (SNM) in all modes of transport is one of the most critical security issues facing the United States and the rest of the world. In principle, detection of nuclear materials is relatively easy because of their unique properties: all of them are radioactive and all emit some characteristic gamma rays. A few emit neutrons as well. These signatures are the basis for passive non-intrusive detection of nuclear materials. The low energy of the radiations necessitates additional means of detection and validation. These are provided by high-energy x-ray radiography and by active inspection based on inducing nuclear reactions in the nuclear materials. Positive confirmation that a nuclear material is present or absent can be provided by interrogation of the inspected object with penetrating probing radiation, such as neutrons and photons. The radiation induces specific reactions in the nuclear material yielding, in turn, penetrating signatures which can be detected outside the inspected object. The 'conventional' signatures are first and foremost fission signatures: prompt and delayed neutrons and gamma rays. Their intensity (number per fission) and the fact that they have broad energy (non-discrete, though unique) distributions and certain temporal behaviors are key to their use. The 'non-conventional' signatures are not related to the fission process but to the unique nuclear structure of each element or isotope in nature. This can be accessed through the excitation of isotopic nuclear levels (discrete and continuum) by neutron inelastic scattering or gamma resonance fluorescence. Finally there is an atomic signature, namely the high atomic number (Z>74), which obviously includes all the nuclear materials and their possible shielding. The presence of such high-Z elements can be inferred by techniques using high-energy x rays. The conventional signatures have been addressed in another article. Non-conventional signatures and some of their current or potential uses will be discussed here.

  18. Seismic Pulses Derivation from the Study of Source Signature Characteristics

    SciTech Connect (OSTI)

    Rahman, Syed Mustafizur; Nawawi, M. N. Mohd.; Saad, Rosli [School of Physics, Univeristi Sains Malaysia, 11800 USM, Pulau Pinang (Malaysia)

    2010-07-07T23:59:59.000Z

    This paper deals with a deterministic technique for the derivation of seismic pulses by the study of source characteristics. The spectral characteristics of the directly or the nearest detected seismic signal is analyzed and considered as the principle source signature. Using this signature seismic pulses are derived with accurate time position in the seismic traces. The technique is applied on both synthetic and field refraction seismic traces. In both cases it has estimated that the accurate time shifts along with amplitude coefficients.

  19. Fair Blind Signatures without Random Oracles Georg Fuchsbauer and Damien Vergnaud

    E-Print Network [OSTI]

    Boyer, Edmond

    Fair Blind Signatures without Random Oracles Georg Fuchsbauer and Damien Vergnaud Ecole normale. A fair blind signature is a blind signature with revocable anonymity and unlinkability, i requested it. In this paper we first revisit the security model for fair blind signatures given

  20. Time-Dependent Delayed Signatures From Energetic Photon Interrogations

    SciTech Connect (OSTI)

    D. R. Norman; J. L. Jones; B. W. Blackburn; S. M. Watson; K. J. Haskell

    2006-08-01T23:59:59.000Z

    A pulsed photonuclear interrogation environment is rich with time-dependent, material specific, radiation signatures. Exploitation of these signatures in the delayed time regime (>1us after the photon flash) has been explored through various detection schemes to identify both shielded nuclear material and nitrogen-based explosives. Prompt emission may also be invaluable for these detection methods. Numerical and experimental results, which utilize specially modified neutron and HpGe detectors, are presented which illustrate the efficacy of utilizing these time-dependent signatures. Optimal selection of the appropriate delayed time window is essential to these pulsed inspection systems. For explosive (ANFO surrogate) detection, both numerical models and experimental results illustrate that nearly all 14N(n,y) reactions have occurred within l00 us after the flash. In contrast, however, gamma-ray and neutron signals for nuclear material detection require a delay of several milliseconds after the photon pulse. In this case, any data collected too close to the photon flash results in a spectrum dominated by high energy signals which make it difficult to discern signatures from nuclear material. Specifically, two short-lived, high-energy fission fragments (97Ag(T1/2=5.1 s) and 94Sr(T1/2=75.2 s)) were measured and identified as indicators of the presence of fissionable material. These developments demonstrate that a photon inspection environment can be exploited for time-dependent, material specific signatures through the proper operation of specially modified detectors.

  1. A Coincidence Signature Library for Multicoincidence Radionuclide Analysis Systems

    SciTech Connect (OSTI)

    Smith, Leon E.; Ellis, J E.; Valsan, Andrei B.; Aalseth, Craig E.; Miley, Harry S.

    2003-10-01T23:59:59.000Z

    Pacific Northwest National Laboratory (PNNL) is currently developing multicoincidence systems to perform trace radionuclide analysis at or near the sample collection point, for applications that include emergency response, nuclear forensics, and environmental monitoring. Quantifying radionuclide concentrations with these systems requires a library of accurate emission intensities for each detected signature, for all candidate radionuclides. To meet this need, a Coincidence Lookup Library (CLL) is being developed to calculate the emission intensities of coincident signatures from a user-specified radionuclide, or conversely, to determine the radionuclides that may be responsible for a specific detected coincident signature. The algorithms used to generate absolute emission intensities and various query modes for our developmental CLL are described.

  2. Using taxonomy, discriminants, and signatures for navigating in text databases

    E-Print Network [OSTI]

    Chakrabarti, Soumen

    Using taxonomy, discriminants, and signatures for navigating in text databases Soumen Chakrabarti the natural hierarchy of topics, or taxonomy, that many corpora, such as internet directories, digital not as a flat unstructured list, but embedded in the familiar taxonomy, and annotated with document signa­ tures

  3. Vibration signatures, wavelets and principal components analysis in diesel engine

    E-Print Network [OSTI]

    Sharkey, Amanda

    Vibration signatures, wavelets and principal components analysis in diesel engine diagnostics G of a normally aspirated diesel engine contain valu able information on the health of the combustion chamber induced in a 4stroke diesel engine and the ensuing vi bration signals recorded. Three different feature

  4. Modelling the Induced Magnetic Signature of Naval Vessels

    E-Print Network [OSTI]

    Low, Robert

    vessels stealth is an important design feature. With recent advances in electromagnetic sensor technology with the magnetic signature resulting from the magnetisation of the ferromagnetic material of the ship, under is constructed from non-magnetic materials, but arises from the combined e#11;ect of the individual items

  5. Case History Acoustic signatures of crossflow behind casing in

    E-Print Network [OSTI]

    Korneev, Valeri A.

    Case History Acoustic signatures of crossflow behind casing in commingled reservoirs: A case study create unwanted con- duits behind casing that lead to crossflow between different producing zones. Crossflow results in lost production or aquifer contamination because fluid flows from a higher- pressure

  6. Chemical signatures and new drug targets for gametocytocidal drug

    E-Print Network [OSTI]

    Arnold, Jonathan

    Chemical signatures and new drug targets for gametocytocidal drug development Wei Sun1 *, Takeshi Q antimalarial drugs are not active against P. falciparum gametocytes, responsible for the spread of malaria screening 5,215 known drugs and compounds. All these compounds were active against three strains

  7. A Comparison Between Signature and Machine Learning Based Detectors

    E-Print Network [OSTI]

    Zincir-Heywood, Nur

    in implementation, their effect on WiFi networks can be devastating. To this end, several Intrusion Detection-Wireless and a genetic programming (GP) based intrusion detector, in the detection of a particular data link layer attack and stealthy manner in order to beat the signatures in the intrusion detection database. Based on the past

  8. Science of Signatures Workshop on Secondary Ion Mass Spectrometry (SIMS) Applications July 24, 2012

    SciTech Connect (OSTI)

    Hickmott, Donald D [Los Alamos National Laboratory; Riciputi, Lee D [Los Alamos National Laboratory

    2012-07-23T23:59:59.000Z

    The science of signatures focus areas are: (1) Radiological and Nuclear; (2) Chemical and Materials (including explosives); (3) Biological - Signatures of Disease and Health; (4) Energy; (5) Climate; and (6) Space.

  9. Searches forSearches for SupersymmetrySupersymmetry inin MultileptonicMultileptonic SignaturesSignatures at CDFat CDF

    E-Print Network [OSTI]

    Fermilab

    Signatures at CDFat CDF Giulia Manca, University of Liverpool Wine and Cheese Seminar Fermilab, 12 May 2006 #12;12th don't unify at one scale · Dark Matter · Dark Energy · Neutrino masses · Gravity Limitations: SupersymmetrySupersymmetry: how?: how? Large Missing Energy ET AND: Isolated leptons Multijets ...and many more

  10. IEEE TRANSACTIONS ON COMPUTERS, VOL. 46, NO. 4, APRIL 1997 425 Parallel Signature Analysis Design

    E-Print Network [OSTI]

    Stanford University

    --Signature analysis, aliasing probability bounds, random testing, linear feedback shift registers, parallel signature is derived from pseudorandom test pattern gen- erators. A data compaction circuit using a linear feedback the response from multiple circuit out- puts [2], [3]; and, the term serial signature analysis is used for LFSR

  11. Audio, Video and Audio-Visual Signatures for Short Video Clip Detection: Experiments on Trecvid2003

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Audio, Video and Audio-Visual Signatures for Short Video Clip Detection: Experiments on Trecvid2003.Senechal,Denis.Pellerin}@lis.inpg.fr, Laurent.Besacier@imag.fr ABSTRACT In this paper, we present the association of audio and video signatures for short video clip detection. First, we present an audio signature based on the spectral flatness measure

  12. Design of Genomic Signatures of Pathogen Identification & Characterization

    SciTech Connect (OSTI)

    Slezak, T; Gardner, S; Allen, J; Vitalis, E; Jaing, C

    2010-02-09T23:59:59.000Z

    This chapter will address some of the many issues associated with the identification of signatures based on genomic DNA/RNA, which can be used to identify and characterize pathogens for biodefense and microbial forensic goals. For the purposes of this chapter, we define a signature as one or more strings of contiguous genomic DNA or RNA bases that are sufficient to identify a pathogenic target of interest at the desired resolution and which could be instantiated with particular detection chemistry on a particular platform. The target may be a whole organism, an individual functional mechanism (e.g., a toxin gene), or simply a nucleic acid indicative of the organism. The desired resolution will vary with each program's goals but could easily range from family to genus to species to strain to isolate. The resolution may not be taxonomically based but rather pan-mechanistic in nature: detecting virulence or antibiotic-resistance genes shared by multiple microbes. Entire industries exist around different detection chemistries and instrument platforms for identification of pathogens, and we will only briefly mention a few of the techniques that we have used at Lawrence Livermore National Laboratory (LLNL) to support our biosecurity-related work since 2000. Most nucleic acid based detection chemistries involve the ability to isolate and amplify the signature target region(s), combined with a technique to detect the amplification. Genomic signature based identification techniques have the advantage of being precise, highly sensitive and relatively fast in comparison to biochemical typing methods and protein signatures. Classical biochemical typing methods were developed long before knowledge of DNA and resulted in dozens of tests (Gram's stain, differential growth characteristics media, etc.) that could be used to roughly characterize the major known pathogens (of course some are uncultivable). These tests could take many days to complete and precise resolution of species and strains is not always possible. In contrast, protein recognition signatures composed of antibodies or synthetic high-affinity ligands offer extremely fast results but require a large quantity of the target to be present. False positives/negatives are also a problem with some protein-based techniques (home pregnancy kits use this basic approach).

  13. The origin, evolution and signatures of primordial magnetic fields

    E-Print Network [OSTI]

    Subramanian, Kandaswamy

    2015-01-01T23:59:59.000Z

    The universe is magnetized on all scales probed so far. On the largest scales, galaxies and galaxy clusters host magnetic fields at the micro Gauss level coherent on scales up to ten kpc. Recent observational evidence suggests that even the intergalactic medium in voids could host a weak $\\sim 10^{-16}$ Gauss magnetic field, coherent on Mpc scales. An intriguing possibility is that these observed magnetic fields are a relic from the early universe, albeit one which has been subsequently amplified and maintained by a dynamo in collapsed objects. We review here the origin, evolution and signatures of primordial magnetic fields. After a brief summary of magnetohydrodynamics in the expanding universe, we turn to magnetic field generation during inflation and other phase transitions. We trace the linear and nonlinear evolution of the generated primordial fields through the radiation era, including viscous effects. Sensitive observational signatures of primordial magnetic fields on the cosmic microwave background, ...

  14. Fractal Fidelity as a signature of Quantum Chaos

    E-Print Network [OSTI]

    Franco Pellegrini; Simone Montangero

    2007-10-03T23:59:59.000Z

    We analyze the fidelity of a quantum simulation and we show that it displays fractal fluctuations iff the simulated dynamics is chaotic. This analysis allows us to investigate a given simulated dynamics without any prior knowledge. In the case of integrable dynamics, the appearance of fidelity fractal fluctuations is a signal of a highly corrupted simulation. We conjecture that fidelity fractal fluctuations are a signature of the appearance of quantum chaos. Our analysis can be realized already by a few qubit quantum processor.

  15. DOPPLER SIGNATURES OF THE ATMOSPHERIC CIRCULATION ON HOT JUPITERS

    SciTech Connect (OSTI)

    Showman, Adam P.; Lewis, Nikole K. [Department of Planetary Sciences and Lunar and Planetary Laboratory, The University of Arizona, 1629 University Boulevard, Tucson, AZ 85721 (United States)] [Department of Planetary Sciences and Lunar and Planetary Laboratory, The University of Arizona, 1629 University Boulevard, Tucson, AZ 85721 (United States); Fortney, Jonathan J. [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)] [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Shabram, Megan, E-mail: showman@lpl.arizona.edu [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611-2055 (United States)] [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611-2055 (United States)

    2013-01-01T23:59:59.000Z

    The meteorology of hot Jupiters has been characterized primarily with thermal measurements, but recent observations suggest the possibility of directly detecting the winds by observing the Doppler shift of spectral lines seen during transit. Motivated by these observations, we show how Doppler measurements can place powerful constraints on the meteorology. We show that the atmospheric circulation-and Doppler signature-of hot Jupiters splits into two regimes. Under weak stellar insolation, the day-night thermal forcing generates fast zonal jet streams from the interaction of atmospheric waves with the mean flow. In this regime, air along the terminator (as seen during transit) flows toward Earth in some regions and away from Earth in others, leading to a Doppler signature exhibiting superposed blueshifted and redshifted components. Under intense stellar insolation, however, the strong thermal forcing damps these planetary-scale waves, inhibiting their ability to generate jets. Strong frictional drag likewise damps these waves and inhibits jet formation. As a result, this second regime exhibits a circulation dominated by high-altitude, day-to-night airflow, leading to a predominantly blueshifted Doppler signature during transit. We present state-of-the-art circulation models including non-gray radiative transfer to quantify this regime shift and the resulting Doppler signatures; these models suggest that cool planets like GJ 436b lie in the first regime, HD 189733b is transitional, while planets hotter than HD 209458b lie in the second regime. Moreover, we show how the amplitude of the Doppler shifts constrains the strength of frictional drag in the upper atmospheres of hot Jupiters. If due to winds, the {approx}2 km s{sup -1} blueshift inferred on HD 209458b may require drag time constants as short as 10{sup 4}-10{sup 6} s, possibly the result of Lorentz-force braking on this planet's hot dayside.

  16. Power Signatures as Characteristics of Commercial and Related Buildings

    E-Print Network [OSTI]

    MacDonald, M.

    1988-01-01T23:59:59.000Z

    at many levels? Readers interested in collecting energy data for commercial buildings should consider this classification scheme as a starting point for or- ganizing data on physical characteristics to assist in making comparisons between buildings... aimed at providing equivalent information, and power signa- tures extend component analysis to allow comparisons of dif- ferent time steps. For both component analysis and power signatures (or other methods), development of an under- standing...

  17. The Los Alamos Science Pillars The Science of Signatures

    SciTech Connect (OSTI)

    Smith, Joshua E. [Los Alamos National Laboratory; Peterson, Eugene J. [Los Alamos National Laboratory

    2012-09-13T23:59:59.000Z

    As a national security science laboratory, Los Alamos is often asked to detect and measure the characteristics of complex systems and to use the resulting information to quantify the system's behavior. The Science of Signatures (SoS) pillar is the broad suite of technical expertise and capability that we use to accomplish this task. With it, we discover new signatures, develop new methods for detecting or measuring signatures, and deploy new detection technologies. The breadth of work at Los Alamos National Laboratory (LANL) in SoS is impressive and spans from the initial understanding of nuclear weapon performance during the Manhattan Project, to unraveling the human genome, to deploying laser spectroscopy instrumentation on Mars. Clearly, SoS is a primary science area for the Laboratory and we foresee that as it matures, new regimes of signatures will be discovered and new ways of extracting information from existing data streams will be developed. These advances will in turn drive the development of sensing instrumentation and sensor deployment. The Science of Signatures is one of three science pillars championed by the Laboratory and vital to supporting our status as a leading national security science laboratory. As with the other two pillars, Materials for the Future and Information Science and Technology for Predictive Science (IS&T), SoS relies on the integration of technical disciplines and the multidisciplinary science and engineering that is our hallmark to tackle the most difficult national security challenges. Over nine months in 2011 and 2012, a team of science leaders from across the Laboratory has worked to develop a SoS strategy that positions us for the future. The crafting of this strategy has been championed by the Chemistry, Life, and Earth Sciences Directorate, but as you will see from this document, SoS is truly an Institution-wide effort and it has engagement from every organization at the Laboratory. This process tapped the insight and imagination of many LANL staff and managers and resulted in a strategy which focuses on our strengths while recognizing that the science of signatures is dynamic. This report highlights the interdependence between SoS, advances in materials science, and advances in information technology. The intent is that SoS shape and inform Los Alamos investments in nuclear forensics, nuclear diagnostics, climate, space, energy, and biosurveillence; the areas of leadership that you will read about in this strategy document. The Science of Signatures is still a relatively new strategic direction for the Laboratory. The primary purpose of this document is tell Laboratory staff how SoS is being managed and give them a chance to get involved. A second important purpose is to inform the Department of Energy and our customers of our capability growth in this important scientific area. Questions concerning the SoS strategy and input to it are welcomed and may be directed to any member of the SoS Leadership Council or to the Chemistry, Life, and Earth Science Directorate Office.

  18. Signatures of fractal clustering of aerosols advected under gravity

    E-Print Network [OSTI]

    Rafael Dias Vilela; Tams Tl; Alessandro P. S. de Moura; Celso Grebogi

    2007-06-15T23:59:59.000Z

    Aerosols under chaotic advection often approach a strange attractor. They move chaotically on this fractal set but, in the presence of gravity, they have a net vertical motion downwards. In practical situations, observational data may be available only at a given level, for example at the ground level. We uncover two fractal signatures of chaotic advection of aerosols under the action of gravity. Each one enables the computation of the fractal dimension $D_{0}$ of the strange attractor governing the advection dynamics from data obtained solely at a given level. We illustrate our theoretical findings with a numerical experiment and discuss their possible relevance to meteorology.

  19. Power Signature Analysis of the SPECpower_ssj2008 Benchmark

    SciTech Connect (OSTI)

    Hsu, Chung-Hsing [ORNL; Poole, Stephen W [ORNL

    2011-01-01T23:59:59.000Z

    As the power consumption of a server system becomes a mainstream concern in enterprise environments, understanding the system's power behavior at varying utilization levels provides us a key to select appropriate energy-efficiency optimizations. In this work, we present an in-depth analysis of 177 SPECpower_ssj2008 results published between 2007--2010 to understand the changes of server's power behavior over time. In particular, we identified simple nonlinear functions appropriate for modeling the power behavior of today's, aggressively power-managed, machines. We consider this work as an important first step towards developing capability for power signature analysis of a high-end computer system.

  20. Signatures of quantum behavior in single-qubit weak measurements

    E-Print Network [OSTI]

    Rusko Ruskov; Alexander N. Korotkov; Ari Mizel

    2005-09-30T23:59:59.000Z

    With the recent surge of interest in quantum computation, it has become very important to develop clear experimental tests for ``quantum behavior'' in a system. This issue has been addressed in the past in the form of the inequalities due to Bell and those due to Leggett and Garg. These inequalities concern the results of ideal projective measurements, however, which are experimentally difficult to perform in many proposed qubit designs, especially in many solid state qubit systems. Here, we show that weak continuous measurements, which are often practical to implement experimentally, can yield particularly clear signatures of quantum coherence, both in the measured correlation functions and in the measured power spectrum.

  1. Signatures of the protein folding pathway in two-dimensional ultraviolet spectroscopy

    E-Print Network [OSTI]

    Jiang, J; Lai, Z; Wang, J; Mukamel, S

    2014-01-01T23:59:59.000Z

    2) Dobson, C. M. Protein Folding and Misfolding. Naturethe Complexity of Protein Folding. Curr. Opin. Struct. Biol.Signatures of the Protein Folding Pathway in Two-Dimensional

  2. BOUNDARY CONDITIONS FOR THE SCALAR FIELD IN THE PRESENCE OF SIGNATURE CHANGE

    E-Print Network [OSTI]

    Tevian Dray; Corinne A. Manogue; Robin W. Tucker

    1995-01-26T23:59:59.000Z

    We show that, contrary to recent criticism, our previous work yields a reasonable class of solutions for the massless scalar field in the presence of signature change.

  3. Millimeter-wave imaging of thermal and chemical signatures.

    SciTech Connect (OSTI)

    Gopalsami, N.

    1999-03-30T23:59:59.000Z

    Development of a passive millimeter-wave (mm-wave) system is described for remotely mapping thermal and chemical signatures of process effluents with application to arms control and nonproliferation. Because a large amount of heat is usually dissipated in the air or waterway as a by-product of most weapons of mass destruction facilities, remote thermal mapping may be used to detect concealed or open facilities of weapons of mass destruction. We have developed a focal-plane mm-wave imaging system to investigate the potential of thermal mapping. Results of mm-wave images obtained with a 160-GHz radiometer system are presented for different target scenes simulated in the laboratory. Chemical and nuclear facilities may be identified by remotely measuring molecular signatures of airborne molecules emitted from these facilities. We have developed a filterbank radiometer to investigate the potential of passive spectral measurements. Proof of principle is presented by measuring the HDO spectral line at 80.6 GHz with a 4-channel 77-83 GHz radiometer.

  4. Active remote detection of radioactivity based on electromagnetic signatures

    SciTech Connect (OSTI)

    Sprangle, P. [Plasma Physics Division, Naval Research Laboratory, Washington, District of Columbia 20375 (United States) [Plasma Physics Division, Naval Research Laboratory, Washington, District of Columbia 20375 (United States); University of Maryland, College Park, Maryland 20742-4111 (United States); Hafizi, B. [Plasma Physics Division, Naval Research Laboratory, Washington, District of Columbia 20375 (United States)] [Plasma Physics Division, Naval Research Laboratory, Washington, District of Columbia 20375 (United States); Milchberg, H.; Nusinovich, G. [University of Maryland, College Park, Maryland 20742-4111 (United States)] [University of Maryland, College Park, Maryland 20742-4111 (United States); Zigler, A. [University of Maryland, College Park, Maryland 20742-4111 (United States) [University of Maryland, College Park, Maryland 20742-4111 (United States); Icarus Research, Inc., PO Box 30780, Bethesda, Maryland 20824-0780 (United States); The Hebrew University of Jerusalem, Jerusalem (Israel)

    2014-01-15T23:59:59.000Z

    This paper presents a new concept for the remote detection of radioactive materials. The concept is based on the detection of electromagnetic signatures in the vicinity of radioactive material and can enable stand-off detection at distances greater than 100?m. Radioactive materials emit gamma rays, which ionize the surrounding air. The ionized electrons rapidly attach to oxygen molecules forming O{sub 2}{sup ?} ions. The density of O{sub 2}{sup ?} around radioactive material can be several orders of magnitude greater than background levels. The elevated population of O{sub 2}{sup ?} extends several meters around the radioactive material. Electrons are easily photo-detached from O{sub 2}{sup ?} ions by laser radiation. The photo-detached electrons, in the presence of laser radiation, initiate avalanche ionization which results in a rapid increase in electron density. The rise in electron density induces a frequency modulation on a probe beam, which becomes a direct spectral signature for the presence of radioactive material.

  5. Time Valid One-Time Signature for Time-Critical Multicast Data Authentication

    E-Print Network [OSTI]

    Nahrstedt, Klara

    malicious attacks. In this paper, we propose a novel signature model ­ Time Valid One-Time Signature (TV perfect tolerance to packet loss and strong robustness against malicious attacks. The communication is found in current substation communication systems where critical messages related to transient faults (e

  6. D. Pitzl (DESY): Searches at HERA 1 Aspen 14.1.2008 Inclusive signatures

    E-Print Network [OSTI]

    D. Pitzl (DESY): Searches at HERA 1 Aspen 14.1.2008 HERA Inclusive signatures Modelbased searches Lepton signatures General search Summary Searches at HERA Daniel Pitzl DESY Aspen 2008 Winter Conference #12;D. Pitzl (DESY): Searches at HERA 2 Aspen 14.1.2008 Hadron Elektron Ring Anlage HERA World

  7. A framework for the revocation of unintended digital signatures initiated by malicious terminals

    E-Print Network [OSTI]

    Levente, Buttyn

    A framework for the revocation of unintended digital signatures initiated by malicious terminals, the user still needs a terminal for authorizing the card to produce digital signatures. If the terminal to make business with a partner. When using cryptographic protocols, the user needs a terminal (e.g., a PC

  8. Quantum Equivalence and Quantum Signatures in Heat Engines

    E-Print Network [OSTI]

    Raam Uzdin; Amikam Levy; Ronnie Kosloff

    2015-04-15T23:59:59.000Z

    Quantum heat engines (QHE) are thermal machines where the working substance is quantum. In the extreme case the working medium can be a single particle or a few level quantum system. The study of QHE has shown a remarkable similarity with the standard thermodynamical models, thus raising the issue what is quantum in quantum thermodynamics. Our main result is thermodynamical equivalence of all engine type in the quantum regime of small action. They have the same power, the same heat, the same efficiency, and they even have the same relaxation rates and relaxation modes. Furthermore, it is shown that QHE have quantum-thermodynamic signature, i.e thermodynamic measurements can confirm the presence of quantum coherence in the device. The coherent work extraction mechanism enables power outputs that greatly exceed the power of stochastic (dephased) engines.

  9. Spectral signatures of photosynthesis I: Review of Earth organisms

    E-Print Network [OSTI]

    Nancy Y. Kiang; Janet Siefert; Govindjee; Robert E. Blankenship

    2007-01-12T23:59:59.000Z

    Why do plants reflect in the green and have a 'red edge' in the red, and should extrasolar photosynthesis be the same? We provide: 1) a brief review of how photosynthesis works; 2) an overview of the diversity of photosynthetic organisms, their light harvesting systems, and environmental ranges; 3) a synthesis of photosynthetic surface spectral signatures; 4) evolutionary rationales for photosynthetic surface reflectance spectra with regard to utilization of photon energy and the planetary light environment. Given the surface incident photon flux density spectrum and resonance transfer in light harvesting, we propose some rules with regard to where photosynthetic pigments will peak in absorbance: a) the wavelength of peak incident photon flux; b) the longest available wavelength for core antenna or reaction center pigments; and c) the shortest wavelengths within an atmospheric window for accessory pigments. That plants absorb less green light may not be an inefficient legacy of evolutionary history, but may actually satisfy the above criteria.

  10. SO[subscript 2] photolysis as a source for sulfur mass-independent isotope signatures in stratospehric aerosols

    E-Print Network [OSTI]

    Jiang, B.

    Signatures of sulfur isotope mass-independent fractionation (S-MIF) have been observed in stratospheric sulfate aerosols deposited in polar ice. The S-MIF signatures are thought to be associated with stratospheric ...

  11. An Instance Theory of Attention and Memory Gordon D. Logan

    E-Print Network [OSTI]

    Logan, Gordon D.

    of attention and memory (ITAM) is presented that integrates formal theories of attention and memory phenomena; objects are categorized by attending to them. ITAM incorporates each of its ancestors as a special case of this heritage, I call the new theory the instance theory of attention and memory (ITAM). Its ancestors on each

  12. active living logan: Topics by E-print Network

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

    Kenong Wu; David Gauthier; Martin D. Levine 1993-01-01 126 Developing solutions for sustainable living-the Urban Living Laboratory: The world's largest 'living laboratory'...

  13. EA-1611: Colorado Highlands Wind Project, Logan County, Colorado

    Broader source: Energy.gov [DOE]

    DOEs Western Area Power Administration prepared an EA in 2009 to assess the potential environmental impacts of interconnecting the proposed Colorado Highlands Wind Project to Westerns transmission system. The EA analyzed a proposal for 60 wind turbine generators with a total output nameplate capacity of 90 megawatts (MW). Western prepared a supplemental EA to assess the potential environmental impacts of the proposed expansion of the project by 11 wind turbine generators that would add approximately 20 MW. Additional information is available on the Western Area Power Administration webpage for this project.

  14. Interns: Sasha Hardy and Logan Pallin Senior mentor: Antnio Baptista

    E-Print Network [OSTI]

    -GIS, including conversion and input of grid files, shapefiles for regions of interest in the Columbia River

  15. Logan County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  16. Logan County, Colorado: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  17. Logan County, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  18. Logan County, Kansas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners andLodgepole, Nebraska: Energy Resources JumpColorado:Kansas:

  19. Logan County, Kentucky: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  20. Logan County, Nebraska: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  1. Logan County, North Dakota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners andLodgepole, Nebraska: Energy ResourcesNebraska: Energy

  2. Logan County, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners andLodgepole, Nebraska: Energy ResourcesNebraska: EnergyOhio:

  3. Logan County, Oklahoma: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners andLodgepole, Nebraska: Energy ResourcesNebraska:

  4. Logan County, West Virginia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners andLodgepole, Nebraska: Energy ResourcesNebraska:West Virginia:

  5. EA-1611: Colorado Highlands Wind Project, Logan County, Colorado...

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

    Western Area Power Administration prepared an EA in 2009 to assess the potential environmental impacts of interconnecting the proposed Colorado Highlands Wind Project to Western's...

  6. Logan View Public Schools Wind Project | Open Energy Information

    Open Energy Info (EERE)

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

  7. City of Logan, Utah (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.TelluricPowerCityJonesville,Livingston, Texas (Utility Company)

  8. Discriminating natal origin of spawning adult sea lamprey (Petromyzon marinus) in Lake Champlain using statolith elemental signatures

    E-Print Network [OSTI]

    Marsden, Ellen

    natal origin chemical signatures using the statoliths of 238 larvae from the same basin. Using laser-ablation

  9. Signatures of Explosion Models for SN ~Ia & Cosmology

    E-Print Network [OSTI]

    P. Hoeflich

    2004-09-07T23:59:59.000Z

    We give an overview of the current understanding of Type Ia supernovae relevant for their use as cosmological distance indicators. We present the physical basis to understand their homogeneity of the observed light curves and spectra and the observed correlations. SNe Ia have been well established as distance indicators on the 10 % level. However, the quest for the nature of the dark energy requires improvements in the accuracy to the 2 to 3 % level, we must understand the diversity within the SNe Ia population, and its evolution with redshift. Based on detailed models for the progenitors, explosions, light curves and spectra, we discuss signatures of thermonuclear explosions, and the implications for cosmology. We emphasize the relation between LC properties and spectra because, for local SNe~Ia, the diversity becomes apparent the combination of spectra and LCs whereas, by enlarge, we have to for high-z objects. At some examples, we show how we can actually probe the properties of the progenitor, its environment, and details of the explosion physics.

  10. Quiet Sun X-rays as Signature for New Particles

    E-Print Network [OSTI]

    K. Zioutas; K. Dennerl; L. DiLella; D. H. H. Hoffmann; J. Jacoby; Th. Papaevangelou

    2004-03-08T23:59:59.000Z

    We have studied published data from the Yohkoh solar X-ray mission, with the purpose of searching for signals from radiative decays of new, as yet undiscovered massive neutral particles. This search is based on the prediction that solar axions of the Kaluza-Klein type should result in the emission of X-rays from the Sun direction beyond the limb with a characteristic radial distribution. These X-rays should be observed more easily during periods of quiet Sun. An additional signature is the observed emission of hard X-rays by SMM, NEAR and RHESSI. The recent observation made by RHESSI of a continuous emission from the non-flaring Sun of X-rays in the 3 to ~15 keV range fits the generic axion scenario. This work also suggests new analyses of existing data, in order to exclude instrumental effects; it provides the rationale for targeted observations with present and upcoming (solar) X-ray telescopes, which can provide the final answer on the nature of the signals considered here. Such measurements become more promising during the forthcoming solar cycle minimum with an increased number of quiet Sun periods.

  11. Assessing Performance and Tradeoffs of Bioforensic Signature Systems

    SciTech Connect (OSTI)

    Watkins, Daniel M.; Sego, Landon H.; Holmes, Aimee E.; Webb-Robertson, Bobbie-Jo M.; White, Amanda M.; Wunschel, David S.; Kreuzer, Helen W.; Corley, Courtney D.; Tardiff, Mark F.

    2013-11-12T23:59:59.000Z

    Chemical and biological forensic programs rely heavily on laboratory measurements to determine how a threat agent may have been produced. In addition to laboratory analyses, it may also be useful to identify institutions where the same threat agent has been produced by the same or a very similar process, since the producer of the agent may have learned methods at a university or similar institution. We developed a Bayesian network framework that combines the results of laboratory measurements with evidence from scientific literature to probabilistically rank institutions that have published papers on the agent of interest. As an example, we consider a network of three laboratory assays that are used to estimate the probabilities that a forensic sample of Yersinia pestis was produced using one of three culture media. We then apply techniques from multi-attribute decision science to assess and compare the performance of the various implementations of the Bayesian network in terms of three attributes: fidelity, document curation intensity, and consumption of the forensic sample. The mathematical approach we use to compare the various implementations is generalizable to the evaluation of other signature systems.

  12. Signature of wide-spread clumping in B supergiant winds

    E-Print Network [OSTI]

    Prinja, Raman

    2010-01-01T23:59:59.000Z

    We seek to establish additional observational signatures of the effects of clumping in OB star winds. The action of clumping on strategic wind-formed spectral lines is tested to steer the development of models for clumped winds and thus improve the reliability of mass-loss determinations for massive stars.The SiIV 1400 resonance line doublets of B0 to B5 supergiants are analysed using empirical line-synthesis models. The focus is on decoding information on wind clumping from measurements of ratios of the radial optical depths (tau_(rad)(w)) of the red and blue components of the SiIV doublet. We exploit in particular the fact that the two doublet components are decoupled and formed independently for targets with relatively low wind terminal velocities. Line-synthesis analyses reveal that the mean ratio of tau_(rad)(w) of the blue to red SiIV components are rarely close to the canonical value of ~ 2 (expected from atomic constants), and spread instead over a range of values between ~1 and 2. These results are i...

  13. Solving Inverse Detection Problems Using Passive Radiation Signatures

    SciTech Connect (OSTI)

    Favorite, Jeffrey A. [Los Alamos National Laboratory; Armstrong, Jerawan C. [Los Alamos National Laboratory; Vaquer, Pablo A. [Los Alamos National Laboratory

    2012-08-15T23:59:59.000Z

    The ability to reconstruct an unknown radioactive object based on its passive gamma-ray and neutron signatures is very important in homeland security applications. Often in the analysis of unknown radioactive objects, for simplicity or speed or because there is no other information, they are modeled as spherically symmetric regardless of their actual geometry. In these presentation we discuss the accuracy and implications of this approximation for decay gamma rays and for neutron-induced gamma rays. We discuss an extension of spherical raytracing (for uncollided fluxes) that allows it to be used when the exterior shielding is flat or cylindrical. We revisit some early results in boundary perturbation theory, showing that the Roussopolos estimate is the correct one to use when the quantity of interest is the flux or leakage on the boundary. We apply boundary perturbation theory to problems in which spherically symmetric systems are perturbed in asymmetric nonspherical ways. We apply mesh adaptive direct search (MADS) algorithms to object reconstructions. We present a benchmark test set that may be used to quantitatively evaluate inverse detection methods.

  14. Cryptic photosynthesis, Extrasolar planetary oxygen without a surface biological signature

    E-Print Network [OSTI]

    C. S. Cockell; L. Kaltenegger; J. A. Raven

    2009-02-19T23:59:59.000Z

    On the Earth, photosynthetic organisms are responsible for the production of virtually all of the oxygen in the atmosphere. On the land, vegetation reflects in the visible, leading to a red edge that developed about 450 Myr ago and has been proposed as a biosignature for life on extrasolar planets. However, in many regions of the Earth, and particularly where surface conditions are extreme, for example in hot and cold deserts, photosynthetic organisms can be driven into and under substrates where light is still sufficient for photosynthesis. These communities exhibit no detectable surface spectral signature to indicate life. The same is true of the assemblages of photosynthetic organisms at more than a few metres depth in water bodies. These communities are widespread and dominate local photosynthetic productivity. We review known cryptic photosynthetic communities and their productivity. We link geomicrobiology with observational astronomy by calculating the disk-averaged spectra of cryptic habitats and identifying detectable features on an exoplanet dominated by such a biota. The hypothetical cryptic photosynthesis worlds discussed here are Earth-analogs that show detectable atmospheric biomarkers like our own planet, but do not exhibit a discernable biological surface feature in the disc-averaged spectrum.

  15. Surface Signature of Flow Past a Sphere at Moderate Reynolds Numbers

    E-Print Network [OSTI]

    Shao, Qi

    2014-04-29T23:59:59.000Z

    . The flow shows a planar symmetric pattern with vortex shedding. When Reynolds number increases to 500, the flow becomes more chaotic and loses its planar symmetry. At Reynolds number of 500, highly organized periodic surface signatures appear on the shear...

  16. Surface Signature of Flow Past a Sphere at Moderate Reynolds Numbers

    E-Print Network [OSTI]

    Shao, Qi

    2014-04-29T23:59:59.000Z

    The incompressible viscous flow past a sphere is investigated numerically at moderate Reynolds numbers. Periodic vortex shedding happens at these Reynolds numbers. The primary objective is to identify the surface signature when the wake reaches...

  17. Signature Peptide-Enabled Metagenomics (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    McMahon, Ben [LANL

    2013-01-25T23:59:59.000Z

    Ben McMahon of Los Alamos National Laboratory (LANL) presents "Signature Peptide-Enabled Metagenomics" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

  18. Observable signatures of extreme mass-ratio inspiral black hole binaries embedded in thin accretion disks

    E-Print Network [OSTI]

    Kocsis, Bence

    We examine the electromagnetic and gravitational wave (GW) signatures of stellar-mass compact objects (COs) spiraling into a supermassive black hole (extreme mass-ratio inspirals), embedded in a thin, radiation-pressure ...

  19. Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider

    E-Print Network [OSTI]

    Bauer, Gerry P.

    A search for signatures of extra spatial dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard model expectation is observed using a ...

  20. MRI Magnetic Signature Imaging, Tracking and Navigation for Targeted Micro/Nano-capsule Therapeutics

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    - back for the microdevice and a propulsion sequence to enable interleaved magnetic propulsionMRI Magnetic Signature Imaging, Tracking and Navigation for Targeted Micro J. Nelson, Antoine Ferreira and Sergej Fatikow Abstract-- The propulsion of nano

  1. Development of Extraction Techniques for the Detection of Signature Lipids from Oil

    E-Print Network [OSTI]

    Borglin, Sharon

    2011-01-01T23:59:59.000Z

    hasbeenshownpreviouslyinoilsamples (Hallman,2008)ofsignaturelipidsfromoil SharonBorglin,OliviaMason,were combined with model oil samples and oil/diesel mixtures

  2. Development of Asset Fault Signatures for Prognostic and Health Management in the Nuclear Industry

    SciTech Connect (OSTI)

    Vivek Agarwal; Nancy J. Lybeck; Randall Bickford; Richard Rusaw

    2014-06-01T23:59:59.000Z

    Proactive online monitoring in the nuclear industry is being explored using the Electric Power Research Institutes Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software. The FW-PHM Suite is a set of web-based diagnostic and prognostic tools and databases that serves as an integrated health monitoring architecture. The FW-PHM Suite has four main modules: Diagnostic Advisor, Asset Fault Signature (AFS) Database, Remaining Useful Life Advisor, and Remaining Useful Life Database. This paper focuses on development of asset fault signatures to assess the health status of generator step-up generators and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive features based on technical examinations that can be used to detect a specific fault type. At the most basic level, fault signatures are comprised of an asset type, a fault type, and a set of one or more fault features (symptoms) that are indicative of the specified fault. The AFS Database is populated with asset fault signatures via a content development exercise that is based on the results of intensive technical research and on the knowledge and experience of technical experts. The developed fault signatures capture this knowledge and implement it in a standardized approach, thereby streamlining the diagnostic and prognostic process. This will support the automation of proactive online monitoring techniques in nuclear power plants to diagnose incipient faults, perform proactive maintenance, and estimate the remaining useful life of assets.

  3. Molecular signatures in response to Isoliquiritigenin in lymphoblastoid cell lines

    SciTech Connect (OSTI)

    Lee, Jae-Eun; Hong, Eun-Jung; Nam, Hye-Young [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of)] [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of); Hwang, Meeyul [Research Center for Biomedical Resource of Oriental Medicine, Daegu Haany University (Korea, Republic of)] [Research Center for Biomedical Resource of Oriental Medicine, Daegu Haany University (Korea, Republic of); Kim, Ji-Hyun [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of)] [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of); Han, Bok-Ghee, E-mail: bokghee@nih.go.kr [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of)] [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of); Jeon, Jae-Pil, E-mail: jpjeon@cdc.go.kr [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of)] [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Korea Centers for Disease Control and Prevention (Korea, Republic of)

    2012-10-19T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer We identified the inhibitory effect of ISL on cell proliferation of LCLs. Black-Right-Pointing-Pointer We found ISL-induced genes and miRNAs through microarray approach. Black-Right-Pointing-Pointer ISL-treated LCLs represented gene expression changes in cell cycle and p53 pathway. Black-Right-Pointing-Pointer We revealed 12 putative mRNA-miRNA functional pairs associated with ISL effect. -- Abstract: Isoliquiritigenin (ISL) has been known to induce cell cycle arrest and apoptosis of various cancer cells. However, genetic factors regulating ISL effects remain unclear. The aim of this study was to identify the molecular signatures involved in ISL-induced cell death of EBV-transformed lymphoblastoid cell lines (LCLs) using microarray analyses. For gene expression and microRNA (miRNA) microarray experiments, each of 12 LCL strains was independently treated with ISL or DMSO as a vehicle control for a day prior to total RNA extraction. ISL treatment inhibited cell proliferation of LCLs in a dose-dependent manner. Microarray analysis showed that ISL-treated LCLs represented gene expression changes in cell cycle and p53 signaling pathway, having a potential as regulators in LCL survival and sensitivity to ISL-induced cytotoxicity. In addition, 36 miRNAs including five miRNAs with unknown functions were differentially expressed in ISL-treated LCLs. The integrative analysis of miRNA and gene expression profiles revealed 12 putative mRNA-miRNA functional pairs. Among them, miR-1207-5p and miR-575 were negatively correlated with p53 pathway- and cell cycle-associated genes, respectively. In conclusion, our study suggests that miRNAs play an important role in ISL-induced cytotoxicity in LCLs by targeting signaling pathways including p53 pathway and cell cycle.

  4. Network signatures of cellular immortalization in human lymphoblastoid cell lines

    SciTech Connect (OSTI)

    Shim, Sung-Mi; Jung, So-Young; Nam, Hye-Young; Kim, Hye-Ryun; Lee, Mee-Hee; Kim, Jun-Woo; Han, Bok-Ghee [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Osong 363-951 (Korea, Republic of)] [National Biobank of Korea, Center for Genome Science, Korea National Institute of Health, Osong 363-951 (Korea, Republic of); Jeon, Jae-Pil, E-mail: jaepiljeon@hanmail.net [Division of Brain Diseases, Center for Biomedical Science, Korea National Institute of Health, Osong 363-951 (Korea, Republic of)] [Division of Brain Diseases, Center for Biomedical Science, Korea National Institute of Health, Osong 363-951 (Korea, Republic of)

    2013-11-15T23:59:59.000Z

    Highlights: We identified network signatures of LCL immortalization from transcriptomic profiles. More than 41% of DEGs are possibly regulated by miRNAs in LCLs. MicroRNA target genes in LCLs are involved in apoptosis and immune-related functions. This approach is useful to find functional miRNA targets in specific cell conditions. -- Abstract: Human lymphoblastoid cell line (LCL) has been used as an in vitro cell model in genetic and pharmacogenomic studies, as well as a good model for studying gene expression regulatory machinery using integrated genomic analyses. In this study, we aimed to identify biological networks of LCL immortalization from transcriptomic profiles of microRNAs and their target genes in LCLs. We first selected differentially expressed genes (DEGs) and microRNAs (DEmiRs) between early passage LCLs (eLCLs) and terminally differentiated late passage LCLs (tLCLs). The in silico and correlation analysis of these DEGs and DEmiRs revealed that 1098 DEGDEmiR pairs were found to be positively (n = 591 pairs) or negatively (n = 507 pairs) correlated with each other. More than 41% of DEGs are possibly regulated by miRNAs in LCL immortalizations. The target DEGs of DEmiRs were enriched for cellular functions associated with apoptosis, immune response, cell death, JAKSTAT cascade and lymphocyte activation while non-miRNA target DEGs were over-represented for basic cell metabolisms. The target DEGs correlated negatively with miR-548a-3p and miR-219-5p were significantly associated with protein kinase cascade, and the lymphocyte proliferation and apoptosis, respectively. In addition, the miR-106a and miR-424 clusters located in the X chromosome were enriched in DEmiRmRNA pairs for LCL immortalization. In this study, the integrated transcriptomic analysis of LCLs could identify functional networks of biologically active microRNAs and their target genes involved in LCL immortalization.

  5. Intrinsic signatures of polymer based fiber reinforced composite structures: An ultrasonic approach

    SciTech Connect (OSTI)

    Good, M.S.; Hansen, N.H.; Heasler, P.G.; Undem, H.A.; Fuller, J.L.; Skorpik, J.R.

    1993-09-01T23:59:59.000Z

    Combination of ultrasound, image comparison, and statistical analysis provide a method for acquiring a subsurface, intrinsic signature from polymer based, fiber-reinforced composites. Although materials properties are carefully controlled, localized fluctuations in the macrostructure and microstructure permit a basis for ultrasound and other NDE methods to read intrinsic signatures from a material. Under ideal conditions where a material signature is stable and has sufficient spatial features as a signature, an error rate on the order of one-out-of-a-million is feasible. A conclusion of an independent functional test performed on the laboratory prototype as it existed in June 1991 is that the system proved effective as a proof-of-concept system. An issue raised by the independent evaluation is that system performance is still at risk of factors relating to signature stability, particularly moisture absorption and material creep. System improvements made to mitigate noise sources identified by the independent evaluation include (1) implementation of a 3.0 {minus} 4.5 {mu}S software gate, (2) use of a RMS amplitude instead of the gated peak amplitude, and (3) optional use of a suction cup holder to facilitate reader alignment and scan consistency.

  6. Beta decay radiation signature from neutron-rich gamma-ray bursts?

    E-Print Network [OSTI]

    Soebur Razzaque; Peter Meszaros

    2006-06-09T23:59:59.000Z

    Core collapse of massive stars and binary neutron stars or black hole-neutron star binary mergers are likely progenitors of long and short duration gamma-ray bursts respectively. Neutronized material in the former and neutron star material in the latter are ejected by the central engine implying a neutron-rich jet outflow. A free neutron, however, beta decays to a proton, an electron (beta) and an anti-neutrino in about fifteen minutes in its rest frame. Sudden creation of a relativistic electron is accompanied by radiation with unique temporal and spectral signature. We calculate here this radiation signature collectively emitted by all beta decay electrons from neutron-rich outflow. Detection of this signature may thus provide strong evidence for not only neutron but also for proton content in the relativistic gamma-ray burst jets.

  7. Momentum signatures for Schwinger pair production in short laser pulses with a sub-cycle structure

    E-Print Network [OSTI]

    Florian Hebenstreit; Reinhard Alkofer; Gerald V. Dunne; Holger Gies

    2009-04-20T23:59:59.000Z

    We investigate electron-positron pair production from vacuum for short laser pulses with sub-cycle structure, in the nonperturbative regime (Schwinger pair production). We use the non-equilibrium quantum kinetic approach, and show that the momentum spectrum of the created electron-positron pairs is extremely sensitive to the sub-cycle dynamics -- depending on the laser frequency $\\omega$, the pulse length $\\tau$, and the carrier phase $\\phi$ -- and shows several distinctive new signatures. This observation could help not only in the design of laser pulses to optimize the experimental signature of Schwinger pair production, but also ultimately lead to new probes of light pulses at extremely short time scales.

  8. Sensitivity of an Upgraded LHC to R-Parity Violating Signatures of the MSSM

    E-Print Network [OSTI]

    Daniel Duggan; Jared A. Evans; James Hirschauer; Ketino Kaadze; David Kolchmeyer; Amit Lath; Matthew Walker

    2014-04-18T23:59:59.000Z

    We present a sensitivity study for the pair-production of supersymmetric particles which decay through R-parity violating channels. As the scope of possible RPV signatures is very broad, the reach of several selected signatures spanning a representative variety of possible final states is considered. Preference in representation is given to spectra motivated by naturalness, i.e. light higgsinos, stops and gluinos. The sensitivity studies are presented for proton-proton collisions at 14 TeV with an integrated luminosity of 300 and 3000 fb^-1, as well as at 33 TeV with an integrated luminosity of 3000 fb^-1.

  9. Development of Extraction Techniques for the Detection of Signature Lipids from Oil

    SciTech Connect (OSTI)

    Borglin, Sharon; Geller, Jil; Chakraborty, Romy; Hazen, Terry; Mason, Olivia

    2010-05-17T23:59:59.000Z

    Pure cultures, including Desulfovibrio vulgaris and Methanococcus maripaludus, were combined with model oil samples and oil/diesel mixtures to optimize extraction techniques of signature lipids from oil in support of investigation of microbial communities in oil deposit samples targets for microbial enhanced hydrocarbon recovery. Several techniques were evaluated, including standard phospholipid extraction, ether linked lipid for Archaeal bacterial detection, and high pressure extractiontechniques. Recovery of lipids ranged from 50-80percent as compared to extraction of the pure culture. Extraction efficiency was evaluated by the use of internal standards. Field samples will also be tested for recovery of signature lipids with optimized extraction techniques.

  10. Viability of long-lived fission products as signatures in forensic radiochemistry

    SciTech Connect (OSTI)

    McAninch, J.E.; Proctor, I.D.; Stoyer, N.J.; Moody, K.J.

    1997-01-01T23:59:59.000Z

    Forensic radiochemistry refers to studies on special nuclear materials, related to nonproliferation and anti-smuggling efforts. AMS (accelerator mass spectroscopy) measurement of long-lived fission products and U and Pu isotopes has the potential to significantly aid the field of forensic radiochemistry by providing new or more sensitive signatures and improving on the speed with which they can be determined. Expanding the suite of signatures obtainable form an illicit sample of special nuclear material increases the likelihood that its point of origin can be positively identified, leveraging LLNL`s impact on policy decisions regarding national security.

  11. Spectral signature of ice clouds in the far-infrared region: Single-scattering calculations and radiative sensitivity study

    E-Print Network [OSTI]

    Baum, Bryan A.

    , a parameterization of the bulk scattering properties is developed. The radiative properties of ice cloudsSpectral signature of ice clouds in the far-infrared region: Single-scattering calculations the spectral signature of ice clouds in the far-infrared (far-IR) spectral region from 100 to 667 cm?1 (15

  12. THE JOURNAL OF CHEMICAL PHYSICS 140, 204905 (2014) Precursory signatures of protein folding/unfolding: From time series

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    THE JOURNAL OF CHEMICAL PHYSICS 140, 204905 (2014) Precursory signatures of protein folding conformation. The present study looks for precursory signatures of protein folding/unfolding within these rapid the important role played by weaker correlations in such protein folding dynamics. 2014 AIP Publishing LLC

  13. The hydraulic bump: The surface signature of a plunging jet M. Labousse and J. W. M. Bush

    E-Print Network [OSTI]

    The hydraulic bump: The surface signature of a plunging jet M. Labousse and J. W. M. Bush Citation://pof.aip.org/authors #12;PHYSICS OF FLUIDS 25, 094104 (2013) The hydraulic bump: The surface signature of a plunging jet M a falling jet of fluid strikes a horizontal fluid layer, a hydraulic jump arises downstream of the point

  14. Blind HIBE and its Applications to Identity-Based Blind Signature and Blind Decryption

    E-Print Network [OSTI]

    Blind HIBE and its Applications to Identity-Based Blind Signature and Blind Decryption Le Trieu Phong and Wakaha Ogata July 29, 2008 Abstract We explicitly describe and analyse blind hierachical identity-based encryption (blind HIBE) schemes, which are natural generalizations of blind IBE schemes [20

  15. Hydrocarbon Signatures of Egg Maternity, Caste Membership and Reproductive Status in the Common Wasp

    E-Print Network [OSTI]

    Wenseleers, Tom

    Hydrocarbon Signatures of Egg Maternity, Caste Membership and Reproductive Status in the Common-laid and worker-laid eggs has never been investigated. Our aim, therefore, was to investigate if hydrocarbons on the surface of newly-laid eggs, and that there are pronounced quantitative differences in the hydrocarbon

  16. Odne Stokke Burheim Thermal Signature and Thermal Conductivities of PEM Fuel Cells

    E-Print Network [OSTI]

    Kjelstrup, Signe

    Odne Stokke Burheim Thermal Signature and Thermal Conductivities of PEM Fuel Cells Thesis-Holst for believing in me and for giving me the opportunity to join the work on the "Thermal Effects in Fuel cell The work presented here gives estimates on thermal gradients within the PEM fuel cell, an experimental

  17. Physical and chemical signatures of a developing anticyclonic eddy in the Leeuwin Current, eastern Indian Ocean

    E-Print Network [OSTI]

    Feng, Ming

    Physical and chemical signatures of a developing anticyclonic eddy in the Leeuwin Current, eastern 2006 to sample a developing anticyclonic eddy of the Leeuwin Current off Western Australia. The eddy to that of the Leeuwin Current, indicating the water mass in the eddy is mainly derived from the Leeuwin Current

  18. The Earth as an extrasolar planet: The vegetation spectral signature today and

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    The Earth as an extrasolar planet: The vegetation spectral signature today and during the last in an unresolved extrasolar Earth-like planet integrated reflectance spectrum. Here we investigate the potential during these extrema when 1 hal-00351408,version1-9Jan2009 #12;Earth's climate and biomes maps were

  19. The Earth as an extrasolar planet: the vegetation spectral signature today

    E-Print Network [OSTI]

    Arnold, Luc

    The Earth as an extrasolar planet: the vegetation spectral signature today and during the last extrasolar Earth-like planet integrated reflectance spectrum. Here, we investigate the potential during these extrema, when Earth's climate and biomes maps were different from today, we are able to test

  20. IDENTIFYING ICE HYDROMETEOR SIGNATURES ABOVE SUMMIT, GREENLAND USING A MULTI-INSTRUMENT APPROACH

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    IDENTIFYING ICE HYDROMETEOR SIGNATURES ABOVE SUMMIT, GREENLAND USING A MULTI. These retrievals, however, may be adversely affected by ice hydrometeors commonly observed in mixed phase clouds. Research on the effect of ice hydrometeors on the microwave signal is insufficient. We establish that ice

  1. Organic Matter Analysis of Sediments from Simpson Bay, Alaska using Elemental, Stable Isotopic, and Molecular Signatures

    E-Print Network [OSTI]

    Pondell, Christina

    2008-08-19T23:59:59.000Z

    profiles for lignin-derived biomarkers and stable carbon isotopes imply that the earthquake events did not disrupt the drainage basin of Simpson Bay enough to change the signatures of the organic matter deposited shortly after these occurrences. The OC, C...

  2. The MWIR and LWIR Spectral Signatures of Water and Associated Materials

    E-Print Network [OSTI]

    Salvaggio, Carl

    The MWIR and LWIR Spectral Signatures of Water and Associated Materials Herbert J. Mitchella measurements have been made of a variety of materials both with and without surface water. The surface water was either natural, in the form of dew or residual rainwater, or artificially introduced by manual wetting

  3. Signature of Rhine Valley sturzstrom dam failures in Holocene sediments of Lake Constance, Germany

    E-Print Network [OSTI]

    Gilli, Adrian

    Signature of Rhine Valley sturzstrom dam failures in Holocene sediments of Lake Constance, Germany that the hyperpycnite deposits are directly related to the failure of two sturzstrom dams and the draining of the dammed and Schuster, 1988). Landslide-dammed lake failures constitute a major hazard to downstream areas (Eis- bacher

  4. Structural Signature of Plastic Deformation in Metallic Glasses H. L. Peng,1,2

    E-Print Network [OSTI]

    Wang, Wei Hua

    Structural Signature of Plastic Deformation in Metallic Glasses H. L. Peng,1,2 M. Z. Li,2,* and W the degree of local fivefold symmetry (LFFS) as the structural indicator to predict plastic deformation of local structures and find that the plastic events prefer to be initiated in regions with a lower degree

  5. A Generalized Bio-inspired Method for Discovering Sequence-based Signatures

    SciTech Connect (OSTI)

    Peterson, Elena S.; Curtis, Darren S.; Phillips, Aaron R.; Teuton, Jeremy R.; Oehmen, Christopher S.

    2013-06-07T23:59:59.000Z

    Many phenomena that we wish to discover are comprised of sequences of events or event primitives. Often signatures are constructed to identify such phenomena using either distributions or frequencies of attributes, or specific subsequences that are known to correlate to the phenomena. Distribution-based identification does not capture the essence of the sequence of behaviors and therefore may suffer from lack of specificity. At the other extreme, using specific subsequences to identify target phenomena is often too specific and suffers from lower sensitivity when natural variations arise in the phenomena, measuring process, or data analysis. We introduce here a method for discovering signatures for phenomena that are well characterized by sequences of event primitives. In this paper, we describe the steps taken and lessons learned in generalizing a sequence analysis method, BLAST, for use on non-biological datasets including expressing and operating on alphabets of varying length, constructing a reward/penalty model for arbitrary datasets, and discovering low complexity segments in sequence data by extending BLASTs native low-complexity estimating algorithms. We also present several case studies that demonstrate the utility of this method to discovering signatures in a wide array of applications including network traffic, software analysis, server characterization, and others. Finally, we demonstrate how signatures discovered using this method can be expressed using a variety of model formalisms, each having its own relative benefit.

  6. Total Break of the -IC Signature Scheme Pierre-Alain Fouque1

    E-Print Network [OSTI]

    Fouque, Pierre-Alain

    - analysis of multivariate schemes and have lead to the efficient break of SFLASH in practice. In this work- signature scheme recently proposed at PKC 2007. This cryptosystem is a multivariate scheme based on a new internal quadratic primitive which avoids some drawbacks of previous multivari- ate schemes: the scheme

  7. info614 : Mathematiques pour l'informatique TP : signature electronique et chiffrement avec GPG

    E-Print Network [OSTI]

    Hyvernat, Pierre

    info614 : Mathematiques pour l'informatique TP : signature electronique et chiffrement avec GPG utilisant le logiciel GPG (Gnu Privacy Guard : http://www.gnupg.org/). GPG est une version libre du logiciel logiciel est bien installe avec la commande "$ gpg --version" Installez l'extension Firefox "FireGPG" http

  8. Attack on Private Signature Keys of the OpenPGP format, PGPTM

    E-Print Network [OSTI]

    - 1 - Attack on Private Signature Keys of the OpenPGP format, PGPTM programs and other applications Prague, t.rosa@decros.cz Abstract. The article describes an attack on OpenPGP format, which leads these applications must undergo the same revision as the actual program PGPTM . The success of the attack

  9. Optical signature of topological insulators Ming-Che Chang1,* and Min-Fong Yang2,

    E-Print Network [OSTI]

    Chang, Ming-Che

    Optical signature of topological insulators Ming-Che Chang1,* and Min-Fong Yang2, 1Department 16 September 2009 The axion coupling in topological insulators couples electric polarization, 73.20. r, 78.20. e I. INTRODUCTION A distinctive property of topological insulators is the ex

  10. A strong 13 C chemical shift signature provides the coordination mode of

    E-Print Network [OSTI]

    cases a crucial component of protein three-dimensional structures. Zinc ions are frequently coordinated-containing zinc-binding site by NMR. NMR chemical shifts contain a vast amount of information on local electronic that the 13 C chemical shifts of aromatic carbons in zinc-ligated histidines represent a reliable signature

  11. On the Security of One-Witness Blind Signature Schemes Foteini Baldimtsi and Anna Lysyanskaya

    E-Print Network [OSTI]

    foteini,anna@cs.brown.edu Computer Science Department, Brown University Abstract. Blind signatures have. Therefore, industry leaders such as Microsoft and IBM [35, 42] have been developing, implement- ing in the standard model [14, 3, 24, 28] while some of these have been adapted for practical use by IBM [14]. However

  12. Exploring Motion Signatures for Vision-Based Tracking, Recognition and Navigation

    E-Print Network [OSTI]

    Li, Wen

    2014-06-27T23:59:59.000Z

    to explore motion signatures for object recognition. We begin with study of the periodic wingbeat motion of flying birds. To analyze the wing motion of a flying bird, we establish kinematics models for bird wings, and obtain wingbeat periodicity in image...

  13. On the Efficiency of Onetime Digital Signatures Daniel Bleichenbacher 1 and Ueli Maurer 2

    E-Print Network [OSTI]

    Maurer, Ueli

    On the Efficiency of Onetime Digital Signatures Daniel Bleichenbacher 1 and Ueli Maurer 2 1 Bell based on trapdoor oneway functions such as the RSA system: higher efficiency and much more freedom. Several results on the achievable efficiency of such schemes are proved, where the efficiency of a scheme

  14. Signatures for Right-Handed Neutrinos at the Large Hadron Collider

    SciTech Connect (OSTI)

    Huitu, Katri; Rai, Santosh Kumar [Department of Physics, University of Helsinki and Helsinki Institute of Physics, P.O. Box 64, FIN-00014 University of Helsinki (Finland); Khalil, Shaaban [Centre for Theoretical Physics, British University in Egypt, El Sherouk City, Postal No, 11837, P.O. Box 43 (Egypt); Department of Mathematics, Ain Shams University, Faculty of Science, Cairo, 11566 (Egypt); Okada, Hiroshi [Centre for Theoretical Physics, British University in Egypt, El Sherouk City, Postal No, 11837, P.O. Box 43 (Egypt)

    2008-10-31T23:59:59.000Z

    We explore possible signatures for right-handed neutrinos in a TeV scale B-L extension of the standard model at the Large Hadron Collider. The studied four lepton signal has a tiny standard model background. We find the signal experimentally accessible at the LHC for the considered parameter regions.

  15. Library Support of Signature Areas of Research at the University of Saskatchewan

    E-Print Network [OSTI]

    Saskatchewan, University of

    Library Support of Signature Areas of Research at the University of Saskatchewan: Food and if necessary to develop broader library support. 1. Introduction Several detailed evaluations of collections of information users of any level. Library support of research is focused on three broad areas: providing access

  16. The Search for Supernova Signatures in an Ice Core A. L. Colea

    E-Print Network [OSTI]

    Howat, Ian M.

    , Michigan State University, East Lansing, MI 48824 b Physics and Astronomy Departments, The Ohio StateThe Search for Supernova Signatures in an Ice Core A. L. Colea , R. N. Boydb , M. E. Davisc , L. G University, Columbus, OH 43210 c Byrd Polar Research Center and Department of Geological Sciences, The Ohio

  17. Fusion of Visual and Thermal Signatures with Eyeglass Removal for Robust Face Recognition

    E-Print Network [OSTI]

    Abidi, Mongi A.

    Fusion of Visual and Thermal Signatures with Eyeglass Removal for Robust Face Recognition Jingu Heo, eyeglasses, which block thermal energy, are detected from thermal images and replaced with an eye template temperatures caused by physical exercise or ambient temperatures. Eyeglasses may result in loss of useful

  18. Signatures of the Protein Folding Pathway in Two-Dimensional Ultraviolet Spectroscopy

    E-Print Network [OSTI]

    Mukamel, Shaul

    Signatures of the Protein Folding Pathway in Two-Dimensional Ultraviolet Spectroscopy Jun Jiang of the signals provides a quantitative marker of protein folding status, accessible by both theoretical calculations and experiments. SECTION: Biophysical Chemistry and Biomolecules Protein folding is an important

  19. Efficient generic on-line/off-line (threshold) signatures without key exposure q

    E-Print Network [OSTI]

    Kim, Kwangjo

    security requirements. 2008 Elsevier Inc. All rights reserved. 1. Introduction The notion of on-line/off-line manufacturing process or as a background computation whenever the card is connected to power, and the on-lineEfficient generic on-line/off-line (threshold) signatures without key exposure q Xiaofeng Chen a

  20. LETTER doi:10.1038/nature12156 Signature of ocean warming in global fisheries catch

    E-Print Network [OSTI]

    Pauly, Daniel

    LETTER doi:10.1038/nature12156 Signature of ocean warming in global fisheries catch William W. L changes in sea surface temperature5 . This study shows that ocean warming has already affected global. Cheung1 , Reg Watson2 & Daniel Pauly3 Marine fishes and invertebrates respond to ocean warming through

  1. Discovery and Annotation of Repeats, Signatures, and Patterns in Genomic Sequences

    E-Print Network [OSTI]

    Robinson, Michael

    Discovery and Annotation of Repeats, Signatures, and Patterns in Genomic Sequences Michael Robinson of genomics, proteomics, and many other "-omics," vast quantities of information are generated computationally the portions of the genome that are significant to biologic disease processes and the information

  2. Chemical Signatures of and Precursors to Fractures Using Fluid Inclusion Stratigraphy

    SciTech Connect (OSTI)

    Lorie M. Dilley

    2011-03-30T23:59:59.000Z

    Enhanced Geothermal Systems (EGS) are designed to recover heat from the subsurface by mechanically creating fractures in subsurface rocks. Open or recently closed fractures would be more susceptible to enhancing the permeability of the system. Identifying dense fracture areas as well as large open fractures from small fracture systems will assist in fracture stimulation site selection. Geothermal systems are constantly generating fractures (Moore, Morrow et al. 1987), and fluids and gases passing through rocks in these systems leave small fluid and gas samples trapped in healed microfractures. These fluid inclusions are faithful records of pore fluid chemistry. Fluid inclusions trapped in minerals as the fractures heal are characteristic of the fluids that formed them, and this signature can be seen in fluid inclusion gas analysis. This report presents the results of the project to determine fracture locations by the chemical signatures from gas analysis of fluid inclusions. With this project we hope to test our assumptions that gas chemistry can distinguish if the fractures are open and bearing production fluids or represent prior active fractures and whether there are chemical signs of open fracture systems in the wall rock above the fracture. Fluid Inclusion Stratigraphy (FIS) is a method developed for the geothermal industry which applies the mass quantification of fluid inclusion gas data from drill cuttings and applying known gas ratios and compositions to determine depth profiles of fluid barriers in a modern geothermal system (Dilley, 2009; Dilley et al., 2005; Norman et al., 2005). Identifying key gas signatures associated with fractures for isolating geothermal fluid production is the latest advancement in the application of FIS to geothermal systems (Dilley and Norman, 2005; Dilley and Norman, 2007). Our hypothesis is that peaks in FIS data are related to location of fractures. Previous work (DOE Grant DE-FG36-06GO16057) has indicated differences in the chemical signature of fluid inclusions between open and closed fractures as well as differences in the chemical signature of open fractures between geothermal systems. Our hypothesis is that open fracture systems can be identified by their FIS chemical signature; that there are differences based on the mineral assemblages and geology of the system; and that there are chemical precursors in the wall rock above open, large fractures. Specific goals for this project are: (1) To build on the preliminary results which indicate that there are differences in the FIS signatures between open and closed fractures by identifying which chemical species indicate open fractures in both active geothermal systems and in hot, dry rock; (2) To evaluate the FIS signatures based on the geology of the fields; (3) To evaluate the FIS signatures based on the mineral assemblages in the fracture; and (4) To determine if there are specific chemical signatures in the wall rock above open, large fractures. This method promises to lower the cost of geothermal energy production in several ways. Knowledge of productive fractures in the boreholes will allow engineers to optimize well production. This information can aid in well testing decisions, well completion strategies, and in resource calculations. It will assist in determining the areas for future fracture enhancement. This will develop into one of the techniques in the 'tool bag' for creating and managing Enhanced Geothermal Systems.

  3. Wave function of the Universe, Preferred reference frame effects and metric signature transition

    E-Print Network [OSTI]

    Hossein Ghaffarnejad

    2015-04-14T23:59:59.000Z

    Gravitational model of non-minimally coupled Brans Dicke (BD) scalar field $\\phi$ with dynamical unit time-like four vector field is used to study flat Robertson Walker (RW) cosmology in the presence of variable cosmological parameter $V(\\phi)=\\Lambda\\phi.$ Aim of the paper is to seek cosmological models which exhibit metric signature transition. The problem is studied in both classical and quantum cosmological approach with large values of BD parameter $\\omega>>1$. Scale factor of RW metric is obtained as $R(t)=6\\sqrt{\\frac{3}{\\Lambda}}\\cosh\\big(\\frac{t}{4}\\sqrt{\\frac{\\Lambda}{3}}\\big)$ which describes nonsingular inflationary universe in Lorentzian signature sector. Euclidean signature sector of our solution describes a re-collapsing universe and is obtained from analytic continuation of the Lorentzian sector by exchanging $t\\to it$ as $R(t)=6\\sqrt{\\frac{3}{\\Lambda}}\\cos\\big(\\frac{t}{4}\\sqrt{\\frac{\\Lambda}{3}}\\big).$ Dynamical vector field together with the BD scalar field are treated as fluid with time dependent barotropic index. They have regular (dark) matter dominance in the Euclidean (Lorentzian) sector. We solved Wheeler De Witt (WD) quantum wave equation of the cosmological system. Assuming a discrete non-zero ADM mass $M_j=4\\sqrt{2}(2j+1)\\sqrt{\\frac{\\Lambda}{3}}$ with $j=0,1,2,\\cdots$, we obtained solutions of the WD equation as simple harmonic quantum Oscillator eigen functionals described by Hermite polynomials. Absolute values of these eigen functionals have nonzero values on the hypersurface $R=6\\sqrt{\\frac{3}{\\Lambda}}$ in which metric field has signature degeneracy. Our eigen functionals describe nonzero probability of the space time with Lorentzian (Euclidean) signature for $R>6\\sqrt{\\frac{3}{\\Lambda}}$ ($R<6\\sqrt{\\frac{3}{\\Lambda}}$). Maximal probability corresponds to the ground state $j=0.$

  4. Signatures and Methods for the Automated Nondestructive Assay of UF6 Cylinders at Uranium Enrichment Plants

    SciTech Connect (OSTI)

    Smith, Leon E.; Mace, Emily K.; Misner, Alex C.; Shaver, Mark W.

    2010-08-08T23:59:59.000Z

    International Atomic Energy Agency (IAEA) inspectors currently perform periodic inspections at uranium enrichment plants to verify UF6 cylinder enrichment declarations. Measurements are typically performed with handheld high-resolution sensors on a sampling of cylinders taken to be representative of the facilitys entire cylinder inventory. These measurements are time-consuming, expensive, and assay only a small fraction of the total cylinder volume. An automated nondestructive assay system capable of providing enrichment measurements over the full volume of the cylinder could improve upon current verification practices in terms of manpower and assay accuracy. Such a station would use sensors that can be operated in an unattended mode at an industrial facility: medium-resolution scintillators for gamma-ray spectroscopy (e.g., NaI(Tl)) and moderated He-3 neutron detectors. This sensor combination allows the exploitation of additional, more-penetrating signatures beyond the traditional 185-keV emission from U-235: neutrons produced from F-19(?,n) reactions (spawned primarily from U 234 alpha emission) and high-energy gamma rays (extending up to 8 MeV) induced by neutrons interacting in the steel cylinder. This paper describes a study of these non-traditional signatures for the purposes of cylinder enrichment verification. The signatures and the radiation sensors designed to collect them are described, as are proof-of-principle cylinder measurements and analyses. Key sources of systematic uncertainty in the non-traditional signatures are discussed, and the potential benefits of utilizing these non-traditional signatures, in concert with an automated form of the traditional 185-keV-based assay, are discussed.

  5. Stable isotope signatures for characterising the biological stability of landfilled municipal solid waste

    SciTech Connect (OSTI)

    Wimmer, Bernhard, E-mail: bernhard.wimmer@ait.ac.at [AIT Austrian Institute of Technology GmbH, Health and Environment Department, Environmental Resources and Technologies, Konrad-Lorenz-Strasse 24, 3430 Tulln (Austria); Hrad, Marlies; Huber-Humer, Marion [Institute of Waste Management, Department of Water-Atmosphere-Environment, University of Natural Resources and Life Sciences, Muthgasse 107, 1190 Vienna (Austria); Watzinger, Andrea; Wyhlidal, Stefan; Reichenauer, Thomas G. [AIT Austrian Institute of Technology GmbH, Health and Environment Department, Environmental Resources and Technologies, Konrad-Lorenz-Strasse 24, 3430 Tulln (Austria)

    2013-10-15T23:59:59.000Z

    Highlights: ? The isotopic signature of ?{sup 13}C-DIC of leachates is linked to the reactivity of MSW. ? Isotopic signatures of leachates depend on aerobic/anaerobic conditions in landfills. ? In situ aeration of landfills can be monitored by isotope analysis in leachate. ? The isotopic analysis of leachates can be used for assessing the stability of MSW. ? ?{sup 13}C-DIC of leachates helps to define the duration of landfill aftercare. - Abstract: Stable isotopic signatures of landfill leachates are influenced by processes within municipal solid waste (MSW) landfills mainly depending on the aerobic/anaerobic phase of the landfill. We investigated the isotopic signatures of ?{sup 13}C, ?{sup 2}H and ?{sup 18}O of different leachates from lab-scale experiments, lysimeter experiments and a landfill under in situ aeration. In the laboratory, columns filled with MSW of different age and reactivity were percolated under aerobic and anaerobic conditions. In landfill simulation reactors, waste of a 25 year old landfill was kept under aerobic and anaerobic conditions. The lysimeter facility was filled with mechanically shredded fresh waste. After starting of the methane production the waste in the lysimeter containments was aerated in situ. Leachate and gas composition were monitored continuously. In addition the seepage water of an old landfill was collected and analysed periodically before and during an in situ aeration. We found significant differences in the ?{sup 13}C-value of the dissolved inorganic carbon (?{sup 13}C-DIC) of the leachate between aerobic and anaerobic waste material. During aerobic degradation, the signature of ?{sup 13}C-DIC was mainly dependent on the isotopic composition of the organic matter in the waste, resulting in a ?{sup 13}C-DIC of ?20 to ?25. The production of methane under anaerobic conditions caused an increase in ?{sup 13}C-DIC up to values of +10 and higher depending on the actual reactivity of the MSW. During aeration of a landfill the aerobic degradation of the remaining organic matter caused a decrease to a ?{sup 13}C-DIC of about ?20. Therefore carbon isotope analysis in leachates and groundwater can be used for tracing the oxidationreduction status of MSW landfills. Our results indicate that monitoring of stable isotopic signatures of landfill leachates over a longer time period (e.g. during in situ aeration) is a powerful and cost-effective tool for characterising the biodegradability and stability of the organic matter in landfilled municipal solid waste and can be used for monitoring the progress of in situ aeration.

  6. Genomic Sequence or Signature Tags (GSTs) from the Genome Group at Brookhaven National Laboratory (BNL)

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

    Dunn, John J.; McCorkle, Sean R.; Praissman, Laura A.; Hind, Geoffrey; Van der Lelie, Daniel; Bahou, Wadie F.; Gnatenko, Dmitri V.; Krause, Maureen K.

    Genomic Signature Tags (GSTs) are the products of a method we have developed for identifying and quantitatively analyzing genomic DNAs. The DNA is initially fragmented with a type II restriction enzyme. An oligonucleotide adaptor containing a recognition site for MmeI, a type IIS restriction enzyme, is then used to release 21-bp tags from fixed positions in the DNA relative to the sites recognized by the fragmenting enzyme. These tags are PCR-amplified, purified, concatenated and then cloned and sequenced. The tag sequences and abundances are used to create a high resolution GST sequence profile of the genomic DNA. [Quoted from Genomic Signature Tags (GSTs): A System for Profiling Genomic DNA, Dunn, John J.; McCorkle, Sean R.; Praissman, Laura A.; Hind, Geoffrey; Van der Lelie, Daniel; Bahou, Wadie F.; Gnatenko, Dmitri V.; Krause, Maureen K., Revised 9/13/2002

  7. Estimation of the Performance of Multiple Active Neutron Interrogation Signatures for Detecting Shielded HEU

    SciTech Connect (OSTI)

    David L. Chichester; Scott J. Thompson; Scott M. Watson; James T. Johnson; Edward H. Seabury

    2012-10-01T23:59:59.000Z

    A comprehensive modeling study has been carried out to evaluate the utility of multiple active neutron interrogation signatures for detecting shielded highly enriched uranium (HEU). The modeling effort focused on varying HEU masses from 1 kg to 20 kg; varying types of shields including wood, steel, cement, polyethylene, and borated polyethylene; varying depths of the HEU in the shields, and varying engineered shields immediately surrounding the HEU including steel, tungsten, and cadmium. Neutron and gamma-ray signatures were the focus of the study and false negative detection probabilities versus measurement time were used as a performance metric. To facilitate comparisons among different approaches an automated method was developed to generate receiver operating characteristic (ROC) curves for different sets of model variables for multiple background count rate conditions. This paper summarizes results or the analysis, including laboratory benchmark comparisons between simulations and experiments. The important impact engineered shields can play towards degrading detectability and methods for mitigating this will be discussed.

  8. Domain-Specific Languages For Developing and Deploying Signature Discovery Workflows

    SciTech Connect (OSTI)

    Jacob, Ferosh; Wynne, Adam S.; Liu, Yan; Gray, Jeff

    2013-12-02T23:59:59.000Z

    Domain-agnostic Signature Discovery entails scientific investigation across multiple domains through the re-use of existing algorithms into workflows. The existing algorithms may be written in any programming language for various hardware architectures (e.g., desktops, commodity clusters, and specialized parallel hardware platforms). This raises an engineering issue in generating Web services for heterogeneous algorithms so that they can be composed into a scientific workflow environment (e.g., Taverna). In this paper, we present our software tool that defines two simple Domain-Specific Languages (DSLs) to automate these processes: SDL and WDL. Our Service Description Language (SDL) describes key elements of a signature discovery algorithm and generates the service code. The Workflow Description Language (WDL) describes the pipeline of services and generates deployable artifacts for the Taverna workflow management system. We demonstrate our tool with a landscape classification example that is represented by BLAST workflows composed of services that wrap original scripts.

  9. Physical and Mathematical Description of Nuclear Weapons Identification System (NWIS) Signatures

    SciTech Connect (OSTI)

    Mattingly, J.K.; Mihalczo, J.T.; Mullens, J.A.; Valentine, T.E.

    1997-09-26T23:59:59.000Z

    This report describes all time and frequency analysis parameters measured with the new Nuclear Weapons Identification System (NWIS) processor with three input channels: (1) the 252Cf source ionization chamber (2) a detection channel; and (3) a second detection channel for active measurements. An intuitive and physical description of the various functions is given as well as a brief mathematical description and a brief description of how the data are acquired. If the fill five channel capability is used, the number of functions increases in number but not in type. The parameters provided by this new NWIS processor can be divided into two general classes: time analysis signatures including multiplicities and frequency analysis signatures. Data from measurements with an 18.75 kg highly enriched uranium (93.2 wt 0/0, 235U) metai casting for storage are presented to illustrate the various time and frequency analysis parameters.

  10. Electromagnetic signatures of far-field gravitational radiation in the 1+3 approach

    E-Print Network [OSTI]

    Alvin J. K. Chua; Priscilla Caizares; Jonathan R. Gair

    2014-12-06T23:59:59.000Z

    Gravitational waves from astrophysical sources can interact with background electromagnetic fields, giving rise to distinctive and potentially detectable electromagnetic signatures. In this paper, we study such interactions for far-field gravitational radiation using the 1+3 approach to relativity. Linearised equations for the electromagnetic field on perturbed Minkowski space are derived and solved analytically. The inverse Gertsenshtein conversion of gravitational waves in a static electromagnetic field is rederived, and the resultant electromagnetic radiation is shown to be significant for highly magnetised pulsars in compact binary systems. We also obtain a variety of nonlinear interference effects for interacting gravitational and electromagnetic waves, although wave-wave resonances previously described in the literature are absent when the electric-magnetic self-interaction is taken into account. The fluctuation and amplification of electromagnetic energy flux as the gravitational wave strength increases towards the gravitational-electromagnetic frequency ratio is a possible signature of gravitational radiation from extended astrophysical sources.

  11. Technology Gap Analysis for the Detection of Process Signatures Using Less Than Remote Methods

    SciTech Connect (OSTI)

    Hartman, John S.; Atkinson, David A.; Lind, Michael A.; Maughan, A. D.; Kelly, James F.

    2005-01-01T23:59:59.000Z

    Although remote sensing methods offer advantages for monitoring important illicit process activities, remote and stand-off technologies cannot successfully detect all important processes with the sensitivity and certainty that is desired. The main scope of the program is observables, with a primary focus on chemical signatures. A number of key process signatures elude remote or stand-off detection for a variety of reasons (e.g., heavy particulate emissions that do not propagate far enough for detection at stand-off distances, semi-volatile chemicals that do not tend to vaporize and remain in the environment near the source, etc.). Some of these compounds can provide persistent, process-specific information that is not available through remote techniques; however, the associated measurement technologies have their own set of advantages, disadvantages and technical challenges that may need to be overcome before additional signature data can be effectively and reliably exploited. The main objective of this report is to describe a process to identify high impact technology gaps for important less-than-remote detection applications. The subsequent analysis focuses on the technology development needed to enable exploitation of important process signatures. The evaluation process that was developed involves three interrelated and often conflicting requirements generation activities: Identification of target signature chemicals with unique intelligence value and their associated attributes as mitigated by environmentally influenced fate and transport effects (i.e., what can you expect to actually find that has intelligence value, where do you need to look for it and what sensitivity and selectivity do you need to see it) Identification of end-user deployment scenario possibilities and constraints with a focus on alternative detection requirements, timing issues, logistical consideration, and training requirements for a successful measurement Identification of available measurement technology alternatives and their associated attributes (available off-the-shelf, in near-term development, likely longer-term development and research-phase possibilities). Assembling these requirements into attribute verses generic acceptance criteria level tables and then comparing related attributes between tables allows for rapid visualization of technology gaps and gross estimates of the gap size. By simply weighting the attributes and the requirements in various ways one can also derive the importance of the identified technology gaps. This output can provide the basis for both a near-term technology development roadmap and research focus as well as a decision support tool for selecting the most likely to succeed approach. The evaluation process as presented is generally applicable for the determination of measurement technology gaps for a broad range of applications [e.g., nuclear weapons process, chemical weapons production, biological weapons production as well as classical signature categories (e.g., chemical and radionuclide signatures)]. In this paper the method is applied to the specific case of detecting nuclear weapons production processes using semi-volatile chemical signatures as an illustration. This particular case selection allows the leveraging of significant prior knowledge and experience while still being highly relevant to current detection scenario needs.

  12. CHEMICAL SIGNATURE OF TWO PERMIAN VOLCANIC ASH DEPOSITS WITHIN A BENTONITE BED FROM MELO, URUGUAY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , URUGUAY L. CALARGE1,2,4 ; A. MEUNIER1* ; B. LANSON3 and M. L.L. FORMOSO4 2 ­ Liane Maria Calarge; Alain-layer minerals, Uruguay 5- CHEMICAL SIGNATURE OF TWO BENTONITE DEPOSITS 6 ­ Academic Section: EARTH SCIENCES 7, URUGUAY L. CALARGE1,2,4 ; A. MEUNIER1* ; B. LANSON3 and M. L. FORMOSO4 1 ­ Universidade Católica Dom Bosco

  13. Automatic Identification of Application I/O Signatures from Noisy Server-Side Traces

    SciTech Connect (OSTI)

    Liu, Yang [ORNL] [ORNL; Gunasekaran, Raghul [ORNL] [ORNL; Ma, Xiaosong [ORNL] [ORNL; Vazhkudai, Sudharshan S [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Competing workloads on a shared storage system cause I/O resource contention and application performance vagaries. This problem is already evident in today s HPC storage systems and is likely to become acute at exascale. We need more interaction between application I/O requirements and system software tools to help alleviate the I/O bottleneck, moving towards I/O-aware job scheduling. However, this requires rich techniques to capture application I/O characteristics, which remain evasive in production systems. Traditionally, I/O characteristics have been obtained using client-side tracing tools, with drawbacks such as non-trivial instrumentation/development costs, large trace traffic, and inconsistent adoption. We present a novel approach, I/O Signature Identifier (IOSI), to characterize the I/O behavior of data-intensive applications. IOSI extracts signatures from noisy, zero-overhead server-side I/O throughput logs that are already collected on today s supercomputers, without interfering with the compiling/execution of applications. We evaluated IOSI using the Spider storage system at Oak Ridge National Laboratory, the S3D turbulence application (running on 18,000 Titan nodes), and benchmark-based pseudo-applications. Through our ex- periments we confirmed that IOSI effectively extracts an application s I/O signature despite significant server-side noise. Compared to client-side tracing tools, IOSI is transparent, interface-agnostic, and incurs no overhead. Compared to alternative data alignment techniques (e.g., dynamic time warping), it offers higher signature accuracy and shorter processing time.

  14. Angular Signatures of Dark Matter in the Diffuse Gamma Ray Spectrum

    SciTech Connect (OSTI)

    Hooper, Dan; Serpico, Pasquale D.; /Fermilab

    2007-02-01T23:59:59.000Z

    Dark matter annihilating in our Galaxy's halo and elsewhere in the universe is expected to generate a diffuse flux of gamma rays, potentially observable with next generation satellite-based experiments, such as GLAST. In this article, we study the signatures of dark matter in the angular distribution of this radiation. Pertaining to the extragalactic contribution, we discuss the effect of the motion of the solar system with respect to the cosmological rest frame, and anisotropies due to the structure of our local universe. For the gamma ray flux from dark matter in our own Galactic halo, we discuss the effects of the offset position of the solar system, the Compton-Getting effect, the asphericity of the Milky Way halo, and the signatures of nearby substructure. We explore the prospects for the detection of these features by the GLAST satellite and find that, if {approx} 10% or more of the diffuse gamma ray background observed by EGRET is the result of dark matter annihilations, then GLAST should be sensitive to anisotropies down to the 0.1% level. Such precision would be sufficient to detect many, if not all, of the signatures discussed in this paper.

  15. Prediction of buried mine-like target radar signatures using wideband electromagnetic modeling

    SciTech Connect (OSTI)

    Warrick, A.L.; Azevedo, S.G.; Mast, J.E.

    1998-04-06T23:59:59.000Z

    Current ground penetrating radars (GPR) have been tested for land mine detection, but they have generally been costly and have poor performance. Comprehensive modeling and experimentation must be done to predict the electromagnetic (EM) signatures of mines to access the effect of clutter on the EM signature of the mine, and to understand the merit and limitations of using radar for various mine detection scenarios. This modeling can provide a basis for advanced radar design and detection techniques leading to superior performance. Lawrence Livermore National Laboratory (LLNL) has developed a radar technology that when combined with comprehensive modeling and detection methodologies could be the basis of an advanced mine detection system. Micropower Impulse Radar (MIR) technology exhibits a combination of properties, including wideband operation, extremely low power consumption, extremely small size and low cost, array configurability, and noise encoded pulse generation. LLNL is in the process of developing an optimal processing algorithm to use with the MIR sensor. In this paper, we use classical numerical models to obtain the signature of mine-like targets and examine the effect of surface roughness on the reconstructed signals. These results are then qualitatively compared to experimental data.

  16. A Statistical Model for Generating a Population of Unclassified Objects and Radiation Signatures Spanning Nuclear Threats

    SciTech Connect (OSTI)

    Nelson, K; Sokkappa, P

    2008-10-29T23:59:59.000Z

    This report describes an approach for generating a simulated population of plausible nuclear threat radiation signatures spanning a range of variability that could be encountered by radiation detection systems. In this approach, we develop a statistical model for generating random instances of smuggled nuclear material. The model is based on physics principles and bounding cases rather than on intelligence information or actual threat device designs. For this initial stage of work, we focus on random models using fissile material and do not address scenarios using non-fissile materials. The model has several uses. It may be used as a component in a radiation detection system performance simulation to generate threat samples for injection studies. It may also be used to generate a threat population to be used for training classification algorithms. In addition, we intend to use this model to generate an unclassified 'benchmark' threat population that can be openly shared with other organizations, including vendors, for use in radiation detection systems performance studies and algorithm development and evaluation activities. We assume that a quantity of fissile material is being smuggled into the country for final assembly and that shielding may have been placed around the fissile material. In terms of radiation signature, a nuclear weapon is basically a quantity of fissile material surrounded by various layers of shielding. Thus, our model of smuggled material is expected to span the space of potential nuclear weapon signatures as well. For computational efficiency, we use a generic 1-dimensional spherical model consisting of a fissile material core surrounded by various layers of shielding. The shielding layers and their configuration are defined such that the model can represent the potential range of attenuation and scattering that might occur. The materials in each layer and the associated parameters are selected from probability distributions that span the range of possibilities. Once an object is generated, its radiation signature is calculated using a 1-dimensional deterministic transport code. Objects that do not make sense based on physics principles or other constraints are rejected. Thus, the model can be used to generate a population of spectral signatures that spans a large space, including smuggled nuclear material and nuclear weapons.

  17. SIGNATURES OF PHOTON-AXION CONVERSION IN THE THERMAL SPECTRA AND POLARIZATION OF NEUTRON STARS

    SciTech Connect (OSTI)

    Perna, Rosalba [JILA and Department of Astrophysical and Planetary Science, University of Colorado at Boulder, 440 UCB, Boulder, CO 80304 (United States); Ho, Wynn C. G. [School of Mathematics, University of Southampton, Southampton, SO17 1BJ (United Kingdom); Verde, Licia; Jimenez, Raul [ICREA and ICC, University of Barcelona (IEEC-UB) (Spain); Van Adelsberg, Matthew [Center for Relativistic Astrophysics and School of Physics Georgia Institute of Technology, Atlanta, GA 30332 (United States)

    2012-04-01T23:59:59.000Z

    Conversion of photons into axions under the presence of a strong magnetic field can dim the radiation from magnetized astrophysical objects. Here we perform a detailed calculation aimed at quantifying the signatures of photon-axion conversion in the spectra, light curves, and polarization of neutron stars (NSs). We take into account the energy and angle dependence of the conversion probability and the surface thermal emission from NSs. The latter is computed from magnetized atmosphere models that include the effect of photon polarization mode conversion due to vacuum polarization. The resulting spectral models, inclusive of the general-relativistic effects of gravitational redshift and light deflection, allow us to make realistic predictions for the effects of photon to axion conversion on observed NS spectra, light curves, and polarization signals. We identify unique signatures of the conversion, such as an increase of the effective area of a hot spot as it rotates away from the observer line of sight. For a star emitting from the entire surface, the conversion produces apparent radii that are either larger or smaller (depending on axion mass and coupling strength) than the limits set by NS equations of state. For an emission region that is observed phase-on, photon-axion conversion results in an inversion of the plane of polarization with respect to the no-conversion case. While the quantitative details of the features that we identify depend on NS properties (magnetic field strength and temperature) and axion parameters, the spectral and polarization signatures induced by photon-axion conversion are distinctive enough to make NSs very interesting and promising probes of axion physics.

  18. Finding new signature effects on galactic dynamics to constrain Bose-Einstein-condensed cold dark matter

    E-Print Network [OSTI]

    Tanja Rindler-Daller; Paul R. Shapiro

    2014-04-17T23:59:59.000Z

    If cosmological cold dark matter (CDM) consists of light enough bosonic particles that their phase-space density exceeds unity, they will comprise a Bose-Einstein condensate (BEC). The nature of this BEC-CDM as a quantum fluid may then distinguish it dynamically from the standard form of CDM involving a collisionless gas of non-relativistic particles that interact purely gravitationally. We summarize some of the dynamical properties of BEC-CDM that may lead to observable signatures in galactic halos and present some of the bounds on particle mass and self-interaction coupling strength that result from a comparison with observed galaxies.

  19. Dilepton as a Possible Signature for the Baryon-Rich Quark-Gluon Plasma

    E-Print Network [OSTI]

    Xia, L. H.; Ko, Che Ming; Li, C. T.

    1990-01-01T23:59:59.000Z

    will be produced so that a transition from the hadronic matter to the quark-gluon plasma will take place. For future experi- ments at the proposed relativistic heavy-ion collider (RHIC) a baryon free quark-gluon plasma is expected to be created because..., it will not be considered as a definitive signature until a better understanding of the dissociation of J/4 by the hadronic particles is achieved. For experiments carried out at the Brookhaven National Laboratory Alternating Gradient Synchrotron (AGS) at 14.5 Ge...

  20. Signatures of wave packet revival phenomena in the expectation values of observables

    E-Print Network [OSTI]

    C. Sudheesh; S. Lakshmibala; V. Balakrishnan

    2004-01-30T23:59:59.000Z

    Wave packet revivals and fractional revivals are striking quantum interference phenomena that can occur under suitable conditions in a system with a nonlinear spectrum. In the framework of a specific model (the propagation of an initially coherent wave packet in a Kerr-like medium), it is shown that distinctive signatures of these revivals and fractional revivals are displayed by the time evolution of the expectation values of physical observables and their powers, i.e., by experimentally measurable quantities. Moreover, different fractional revivals can be selectively identified by examining appropriate higher moments.

  1. Security analysis of boolean algebra based on Zhang-Wang digital signature scheme

    SciTech Connect (OSTI)

    Zheng, Jinbin, E-mail: jbzheng518@163.com [School of Mathematics and Computer Science, Long Yan University, Longyan 364012 (China)

    2014-10-06T23:59:59.000Z

    In 2005, Zhang and Wang proposed an improvement signature scheme without using one-way hash function and message redundancy. In this paper, we show that this scheme exits potential safety concerns through the analysis of boolean algebra, such as bitwise exclusive-or, and point out that mapping is not one to one between assembly instructions and machine code actually by means of the analysis of the result of the assembly program segment, and which possibly causes safety problems unknown to the software.

  2. Interferometric signatures of the temperature dependence of the specific shear viscosity in heavy-ion collisions

    E-Print Network [OSTI]

    Christopher Plumberg; Ulrich Heinz

    2015-04-08T23:59:59.000Z

    Recent work has shown that a temperature dependence of the shear viscosity to entropy ratio, $\\eta/s$, influences the collective flow pattern in heavy-ion collisions in characteristic ways that can be measured by studying hadron transverse momentum spectra and their anisotropies. Here we point out that it also affects the pair momentum dependence of the Hanbury-Brown$-$Twiss (HBT) radii (the source size parameters extracted from two-particle intensity interferometry) and the variance of their event-by-event fluctuations. This observation establishes interferometric signatures as useful observables to complement the constraining power of single-particle spectra on the temperature dependence of $\\eta/s$.

  3. Interferometric signatures of the temperature dependence of the specific shear viscosity in heavy-ion collisions

    E-Print Network [OSTI]

    Plumberg, Christopher

    2015-01-01T23:59:59.000Z

    Recent work has shown that a temperature dependence of the shear viscosity to entropy ratio, $\\eta/s$, influences the collective flow pattern in heavy-ion collisions in characteristic ways that can be measured by studying hadron transverse momentum spectra and their anisotropies. Here we point out that it also affects the pair momentum dependence of the Hanbury-Brown$-$Twiss (HBT) radii (the source size parameters extracted from two-particle intensity interferometry) and the variance of their event-by-event fluctuations. This observation establishes interferometric signatures as useful observables to complement the constraining power of single-particle spectra on the temperature dependence of $\\eta/s$.

  4. Cloud signatures of six cases of cyclogenesis in the Gulf of Mexico

    E-Print Network [OSTI]

    Pophin, Danny R

    1979-01-01T23:59:59.000Z

    of Mexico was made and was modeled after the Saucier study. The data used were extracted from the Climatological Data, National Summary (CDNS). Cyclones that origi- nated in the specified region, 20-30'N and 80-100'W, were tabulated for 17 a 20 y period...CLOUD SIGNATURES OF SIX CASES OF CYCLOGENESIS IN THE GULF OF MEXICO A Thesis by DANNY R. POPHIN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August...

  5. Apparatus and method for rapid detection of explosives residue from the deflagration signature thereof

    DOE Patents [OSTI]

    Funsten, H.O.; McComas, D.J.

    1999-06-15T23:59:59.000Z

    Apparatus and method are disclosed for rapid detection of explosives residue from the deflagration signature thereof. A property inherent to most explosives is their stickiness, resulting in a strong tendency of explosive particulate to contaminate the environment of a bulk explosive. An apparatus for collection of residue particulate, burning the collected particulate, and measurement of the ultraviolet emission produced thereby, is described. The present invention can be utilized for real-time screening of personnel, cars, packages, suspected devices, etc., and provides an inexpensive, portable, and noninvasive means for detecting explosives. 4 figs.

  6. Signatures of photon and axion-like particle mixing in the gamma-ray burst jet

    E-Print Network [OSTI]

    Olga Mena; Soebur Razzaque; F. Villaescusa-Navarro

    2011-02-07T23:59:59.000Z

    Photons couple to Axion-Like Particles (ALPs) or more generally to any pseudo Nambu-Goldstone boson in the presence of an external electromagnetic field. Mixing between photons and ALPs in the strong magnetic field of a Gamma-Ray Burst (GRB) jet during the prompt emission phase can leave observable imprints on the gamma-ray polarization and spectrum. Mixing in the intergalactic medium is not expected to modify these signatures for ALP mass > 10^(-14) eV and/or for gamma ray emission. We also show that when the magnetic field orientation in the propagation region is perpendicular to the field orientation in the production region, the observed synchrotron spectrum becomes steeper than the theoretical prediction and as detected in a sizable fraction of GRB sample. Detection of the correlated polarization and spectral signatures from these steep-spectrum GRBs by gamma-ray polarimeters can be a very powerful probe to discover ALPs. Measurement of gamma-ray polarization from GRBs in general, with high statistics, can also be useful to search for ALPs.

  7. The Lifecycle of Bayesian Network Models Developed for Multi-Source Signature Assessment of Nuclear Programs

    SciTech Connect (OSTI)

    Gastelum, Zoe N.; White, Amanda M.; Whitney, Paul D.; Gosink, Luke J.; Sego, Landon H.

    2013-06-04T23:59:59.000Z

    The Multi-Source Signatures for Nuclear Programs project, part of Pacific Northwest National Laboratorys (PNNL) Signature Discovery Initiative, seeks to computationally capture expert assessment of multi-type information such as text, sensor output, imagery, or audio/video files, to assess nuclear activities through a series of Bayesian network (BN) models. These models incorporate knowledge from a diverse range of information sources in order to help assess a countrys nuclear activities. The models span engineering topic areas, state-level indicators, and facility-specific characteristics. To illustrate the development, calibration, and use of BN models for multi-source assessment, we present a model that predicts a countrys likelihood to participate in the international nuclear nonproliferation regime. We validate this model by examining the extent to which the model assists non-experts arrive at conclusions similar to those provided by nuclear proliferation experts. We also describe the PNNL-developed software used throughout the lifecycle of the Bayesian network model development.

  8. Calcite precipitation dominates the electrical signatures of zero valent iron columns under simulated field conditions

    SciTech Connect (OSTI)

    Wu, Yuxin; Versteeg, R.; Slater, L.; LaBrecque, D.

    2009-06-01T23:59:59.000Z

    Calcium carbonate is a secondary mineral precipitate influencing zero valent iron (ZVI) barrier reactivity and hydraulic performance. We conducted column experiments to investigate electrical signatures resulting from concurrent CaCO{sub 3} and iron oxides precipitation under simulated field geochemical conditions. We identified CaCO{sub 3} as a major mineral phase throughout the columns, with magnetite present primarily close to the influent based on XRD analysis. Electrical measurements revealed decreases in conductivity and polarization of both columns, suggesting that electrically insulating CaCO{sub 3} dominates the electrical response despite the presence of electrically conductive iron oxides. SEM/EDX imaging suggests that the electrical signal reflects the geometrical arrangement of the mineral phases. CaCO{sub 3} forms insulating films on ZVI/magnetite surfaces, restricting charge transfer between the pore electrolyte and ZVI particles, as well as across interconnected ZVI particles. As surface reactivity also depends on the ability of the surface to engage in redox reactions via charge transfer, electrical measurements may provide a minimally invasive technology for monitoring reactivity loss due to CaCO{sub 3} precipitation. Comparison between laboratory and field data shows consistent changes in electrical signatures due to iron corrosion and secondary mineral precipitation.

  9. Isolating signatures of major cloud-cloud collisions using position-velocity diagrams

    E-Print Network [OSTI]

    Haworth, T J; Fukui, Y; Torii, K; Dale, J E; Shima, K; Takahira, K; Habe, A; Hasegawa, K

    2015-01-01T23:59:59.000Z

    Collisions between giant molecular clouds are a potential mechanism for triggering the formation of massive stars, or even super star clusters. The trouble is identifying this process observationally and distinguishing it from other mechanisms. We produce synthetic position-velocity diagrams from models of: cloud-cloud collisions, non-interacting clouds along the line of sight, clouds with internal radiative feedback and a more complex cloud evolving in a galactic disc, to try and identify unique signatures of collision. We find that a broad bridge feature connecting two intensity peaks, spatially correlated but separated in velocity, is a signature of a high velocity cloud-cloud collision. We show that the broad bridge feature is resilient to the effects of radiative feedback, at least to around 2.5Myr after the formation of the first massive (ionising) star. However for a head on 10km/s collision we find that this will only be observable from 20-30 per cent of viewing angles. Such broad-bridge features have...

  10. An Approach for Assessing the Signature Quality of Various Chemical Assays when Predicting the Culture Media Used to Grow Microorganisms

    SciTech Connect (OSTI)

    Holmes, Aimee E.; Sego, Landon H.; Webb-Robertson, Bobbie-Jo M.; Kreuzer, Helen W.; Anderson, Richard M.; Unwin, Stephen D.; Weimar, Mark R.; Tardiff, Mark F.; Corley, Courtney D.

    2013-02-01T23:59:59.000Z

    We demonstrate an approach for assessing the quality of a signature system designed to predict the culture medium used to grow a microorganism. The system was comprised of four chemical assays designed to identify various ingredients that could be used to produce the culture medium. The analytical measurements resulting from any combination of these four assays can be used in a Bayesian network to predict the probabilities that the microorganism was grown using one of eleven culture media. We evaluated combinations of the signature system by removing one or more of the assays from the Bayes network. We measured and compared the quality of the various Bayes nets in terms of fidelity, cost, risk, and utility, a method we refer to as Signature Quality Metrics

  11. First measurement of the Head-Tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches

    E-Print Network [OSTI]

    S. Burgos; E. Daw; J. Forbes; C. Ghag; M. Gold; C. Hagemann; V. A. Kudryavtsev; T. B. Lawson; D. Loomba; P. Majewski; D. Muna; A. StJ. Murphy; G. G. Nicklin; S. M. Paling; A. Petkov; S. J. S. Plank; M. Robinson; N. Sanghi; D. P. Snowden-Ifft; N. J. C. Spooner; J. Turk; E. Tziaferi

    2008-09-10T23:59:59.000Z

    We present first evidence for the so-called Head-Tail asymmetry signature of neutron-induced nuclear recoil tracks at energies down to 1.5 keV/amu using the 1m^3 DRIFT-IIc dark matter detector. This regime is appropriate for recoils induced by Weakly Interacting Massive Particle (WIMPs) but one where the differential ionization is poorly understood. We show that the distribution of recoil energies and directions induced here by Cf-252 neutrons matches well that expected from massive WIMPs. The results open a powerful new means of searching for a galactic signature from WIMPs.

  12. NO TRACE LEFT BEHIND: STEREO OBSERVATION OF A CORONAL MASS EJECTION WITHOUT LOW CORONAL SIGNATURES

    SciTech Connect (OSTI)

    Robbrecht, Eva; Patsourakos, Spiros [George Mason University, 4400 University Drive, Fairfax, VA 22030 (United States); Vourlidas, Angelos [Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375 (United States)], E-mail: Eva.Robbrecht.ctr.be@nrl.navy.mil

    2009-08-10T23:59:59.000Z

    The availability of high-quality synoptic observations of the extreme-ultraviolet (EUV) and visible corona during the SOHO mission has advanced our understanding of the low corona manifestations of coronal mass ejections (CMEs). The EUV imager/white light coronagraph connection has been proven so powerful, it is routinely assumed that if no EUV signatures are present when a CME is observed by a coronagraph, then the event must originate behind the visible limb. This assumption carries strong implications for space weather forecasting but has not been put to the test. This paper presents the first detailed analysis of a frontside, large-scale CME that has no obvious counterparts in the low corona as observed in EUV and H{alpha} wavelengths. The event was observed by the SECCHI instruments onboard the STEREO mission. The COR2A coronagraph observed a slow flux-rope-type CME, while an extremely faint partial halo was observed in COR2B. The event evolved very slowly and is typical of the streamer-blowout CME class. EUVI A 171 A images show a concave feature above the east limb, relatively stable for about two days before the eruption, when it rises into the coronagraphic fields and develops into the core of the CME. None of the typical low corona signatures of a CME (flaring, EUV dimming, filament eruption, waves) were observed in the EUVI B images, which we attribute to the unusually large height from which the flux rope lifted off. This interpretation is supported by the CME mass measurements and estimates of the expected EUV dimming intensity. Only thanks to the availability of the two viewpoints we were able to identify the likely source region. The event originated along a neutral line over the quiet-Sun. No active regions were present anywhere on the visible (from STEREO B) face of the disk. Leaving no trace behind on the solar disk, this observation shows unambiguously that a CME eruption does not need to have clear on-disk signatures. Also it sheds light on the question of 'mystery' geomagnetic storms, storms without clear solar origin (formerly called problem storms). We discuss the implications for space weather monitoring. Preliminary inspection of STEREO data indicates that events like this are not uncommon, particularly during the ongoing period of deep solar minimum.

  13. Adding the Morrill Act Logo to Your EMail Signature (PCs) 1. Place the logo image on your desktop or somewhere you can readily access it.

    E-Print Network [OSTI]

    Jawitz, James W.

    Adding the Morrill Act Logo to Your EMail Signature (PCs) 1. Place the logo image on your desktop with the sun over it. Click on this to locate the logo on your computer. 6. Choose the logo and click. Adding the Morrill Act Logo to Your EMail Signature (Macs) 1. Place the logo image on your desktop

  14. Optical signatures of quantum delocalization over extended domains in photosynthetic membranes

    E-Print Network [OSTI]

    Schroeder, Christopher A; Huelga, Susana F; Plenio, Martin B

    2015-01-01T23:59:59.000Z

    The prospect of coherent dynamics and excitonic delocalization across several light-harvesting structures in photosynthetic membranes is of considerable interest, but challenging to explore experimentally. Here we demonstrate theoretically that the excitonic delocalization across extended domains involving several light-harvesting complexes can lead to unambiguous signatures in the optical response, specifically, linear absorption spectra. We characterize, under experimentally established conditions of molecular assembly and protein-induced inhomogeneities, the optical absorption in these arrays from polarized and unpolarized excitation, and demonstrate that it can be used as a diagnostic tool to determine the coherent coupling among iso-energetic light-harvesting structures. The knowledge of these couplings would then provide further insight into the dynamical properties of transfer, such as facilitating the accurate determination of F\\"orster rates.

  15. HELIOSEISMIC SIGNATURE OF CHROMOSPHERIC DOWNFLOWS IN ACOUSTIC TRAVEL-TIME MEASUREMENTS FROM HINODE

    SciTech Connect (OSTI)

    Nagashima, Kaori; Sekii, Takashi [Department of Astronomical Science, The Graduate University for Advanced Studies (Sokendai), National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Kosovichev, Alexander G.; Zhao Junwei [W.W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305 (United States); Tarbell, Theodore D. [Lockheed Martin Solar and Astrophysics Laboratory, B/252, 3251 Hanover Street, Palo Alto, CA 94304 (United States)], E-mail: kaorin@solar.mtk.nao.ac.jp

    2009-04-01T23:59:59.000Z

    We report on a signature of chromospheric downflows in two emerging flux regions detected by time-distance helioseismology analysis. We use both chromospheric intensity oscillation data in the Ca II H line and photospheric Dopplergrams in the Fe I 557.6 nm line obtained by Hinode/SOT for our analyses. By cross-correlating the Ca II oscillation signals, we have detected a travel-time anomaly in the plage regions; outward travel times are shorter than inward travel times by 0.5-1 minute. However, such an anomaly is absent in the Fe I data. These results can be interpreted as evidence of downflows in the lower chromosphere. The downflow speed is estimated to be below 10 km s{sup -1}. This result demonstrates a new possibility of studying chromospheric flows by time-distance analysis.

  16. On signatures for the Littlest Higgs model in electron-positron colliders

    E-Print Network [OSTI]

    F. M. L. de Almeida Jr.; Y. A. Coutinho; J. A. Martins Simes; A. J. Ramalho; S. Wulck; M. A. B. do Vale

    2006-07-27T23:59:59.000Z

    There is a recent proposal of identifying the Higgs particle of the Standard Model as a pseudo Nambu-Goldstone boson. This new broken symmetry introduces new particles and new interactions. Among these new interactions a central role to get a new physics is played by the new neutral gauge boson. We have studied the new neutral currents in the Littlest Higgs model and compared with other extended models. For high energy $e^+ + e^-$ colliders we present a clear signature for new neutral gauge bosons that can indicate the theoretical origin of these particles. Previous analysis by other authors were done at collider energies equal to the new gauge boson mass $M_{A_H}$. In this paper we show that asymmetries in fermion anti-fermion production can display model differences in the case $M_{A_H} > \\sqrt{s}$. For $M_{A_H} New bounds for the new neutral gauge boson masses are also presented.

  17. Distinguishing types of compact-object binaries using the gravitational-wave signatures of their mergers

    E-Print Network [OSTI]

    Ilya Mandel; Carl-Johan Haster; Michal Dominik; Krzysztof Belczynski

    2015-05-04T23:59:59.000Z

    We analyze the distinguishability of populations of coalescing binary neutron stars, neutron-star black-hole binaries, and binary black holes, whose gravitational-wave signatures are expected to be observed by the advanced network of ground-based interferometers LIGO and Virgo. We consider population-synthesis predictions for plausible merging binary distributions in mass space, along with measurement accuracy estimates from the main gravitational-wave parameter-estimation pipeline. We find that for our model compact-object binary mass distribution, we can always distinguish binary neutron stars and black-hole--neutron-star binaries, but not necessarily black-hole--neutron-star binaries and binary black holes; however, with a few tens of detections, we can accurately identify the three subpopulations and measure their respective rates.

  18. Signatures of the Unruh effect from electrons accelerated by ultra-strong laser fields

    E-Print Network [OSTI]

    Ralf Schtzhold; Gernot Schaller; Dietrich Habs

    2006-04-10T23:59:59.000Z

    We calculate the radiation resulting from the Unruh effect for strongly accelerated electrons and show that the photons are created in pairs whose polarizations are maximally entangled. Apart from the photon statistics, this quantum radiation can further be discriminated from the classical (Larmor) radiation via the different spectral and angular distributions. The signatures of the Unruh effect become significant if the external electromagnetic field accelerating the electrons is not too far below the Schwinger limit and might be observable with future facilities. Finally, the corrections due to the birefringent nature of the QED vacuum at such ultra-high fields are discussed. PACS: 04.62.+v, 12.20.Fv, 41.60.-m, 42.25.Lc.

  19. Precursory signatures of protein folding/unfolding: From time series correlation analysis to atomistic mechanisms

    SciTech Connect (OSTI)

    Hsu, P. J.; Lai, S. K., E-mail: sklai@coll.phy.ncu.edu.tw [Complex Liquids Laboratory, Department of Physics, National Central University, Chungli 320 Taiwan (China); Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan (China); Cheong, S. A. [Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore)

    2014-05-28T23:59:59.000Z

    Folded conformations of proteins in thermodynamically stable states have long lifetimes. Before it folds into a stable conformation, or after unfolding from a stable conformation, the protein will generally stray from one random conformation to another leading thus to rapid fluctuations. Brief structural changes therefore occur before folding and unfolding events. These short-lived movements are easily overlooked in studies of folding/unfolding for they represent momentary excursions of the protein to explore conformations in the neighborhood of the stable conformation. The present study looks for precursory signatures of protein folding/unfolding within these rapid fluctuations through a combination of three techniques: (1) ultrafast shape recognition, (2) time series segmentation, and (3) time series correlation analysis. The first procedure measures the differences between statistical distance distributions of atoms in different conformations by calculating shape similarity indices from molecular dynamics simulation trajectories. The second procedure is used to discover the times at which the protein makes transitions from one conformation to another. Finally, we employ the third technique to exploit spatial fingerprints of the stable conformations; this procedure is to map out the sequences of changes preceding the actual folding and unfolding events, since strongly correlated atoms in different conformations are different due to bond and steric constraints. The aforementioned high-frequency fluctuations are therefore characterized by distinct correlational and structural changes that are associated with rate-limiting precursors that translate into brief segments. Guided by these technical procedures, we choose a model system, a fragment of the protein transthyretin, for identifying in this system not only the precursory signatures of transitions associated with ? helix and ? hairpin, but also the important role played by weaker correlations in such protein folding dynamics.

  20. TIDAL TAIL EJECTION AS A SIGNATURE OF TYPE Ia SUPERNOVAE FROM WHITE DWARF MERGERS

    SciTech Connect (OSTI)

    Raskin, Cody; Kasen, Daniel [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

    2013-07-20T23:59:59.000Z

    The merger of two white dwarfs may be preceded by the ejection of some mass in ''tidal tails,'' creating a circumstellar medium around the system. We consider the variety of observational signatures from this material, which depend on the lag time between the start of the merger and the ultimate explosion (assuming one occurs) of the system in a Type Ia supernova (SN Ia). If the time lag is fairly short, then the interaction of the supernova ejecta with the tails could lead to detectable shock emission at radio, optical, and/or X-ray wavelengths. At somewhat later times, the tails produce relatively broad NaID absorption lines with velocity widths of the order of the white dwarf escape speed ({approx}1000 km s{sup -1}). That none of these signatures have been detected in normal SNe Ia constrains the lag time to be either very short ({approx}< 100 s) or fairly long ({approx}> 100 yr). If the tails have expanded and cooled over timescales {approx}10{sup 4} yr, then they could be observable through narrow NaID and Ca II H and K absorption lines in the spectra, which are seen in some fraction of SNe Ia. Using a combination of three-dimensional and one-dimensional hydrodynamical codes, we model the mass loss from tidal interactions in binary systems, and the subsequent interactions with the interstellar medium, which produce a slow-moving, dense shell of gas. We synthesize NaID line profiles by ray casting through this shell, and show that in some circumstances tidal tails could be responsible for narrow absorptions similar to those observed.

  1. Texas sea breeze: fact or fiction? : an investigation of Texas climate records for a sea-land breeze signature

    E-Print Network [OSTI]

    Ostermeier, Gregory

    2013-02-22T23:59:59.000Z

    to the region near the coast. The manner in which temperature, humidity, and wind should behave is influenced by the sea-land breeze on the climatic scale is first established. As a whole the coastal stations show varying amounts of evidence of a signature...

  2. Mineralogical signature of nonsulfide zinc ores at Accha (Peru): A key for recovery Maria Boni a,b,

    E-Print Network [OSTI]

    Boni, Maria

    Mineralogical signature of nonsulfide zinc ores at Accha (Peru): A key for recovery Maria Boni a 14 October 2009 Keywords: Nonsulfide zinc Mineralogy Petrography Processing Flowsheet The Accha deposit in Southern Peru is the first case in which an integrated study between mineralogy, petrography

  3. Tracking the sea-level signature of the 8.2 ka cooling event: New constraints from the Mississippi Delta

    E-Print Network [OSTI]

    Trnqvist, Torbjrn E.

    Tracking the sea-level signature of the 8.2 ka cooling event: New constraints from the Mississippi sparked immense interest in an abrupt, century-scale cooling around 8200 years ago, with a focal point in the North Atlantic and with hemispheric teleconnections. Despite considerable progress in the unraveling

  4. AGREEMENT FOR MOBILE TECHNOLOGY ACCESS AND My signature on the "Mobile Technology Access and Payment Option Request"

    E-Print Network [OSTI]

    Oregon, University of

    AGREEMENT FOR MOBILE TECHNOLOGY ACCESS AND ALLOWANCE My signature on the "Mobile Technology Access and conditions identified in the Access to Mobile Technology and the Payment Options for Mobile Technology policies [http://hr.uoregon.edu/policy/MobileTechnologyDevice.html]. 2. I understand that that I must

  5. 336 IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 20, NO. 2, JUNE 2005 Multiple Signature Processing-Based Fault Detection

    E-Print Network [OSTI]

    Chow, Mo-Yuen

    336 IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 20, NO. 2, JUNE 2005 Multiple Signature Processing-specific frequencies are settled around the fundamental stator current frequency and are termed lower and upper-input processing capabilities. The focus of this paper is to provide a new fault detection methodology for broken

  6. CDF note 10798 Seach for the SM Higgs boson in the ET +b-jets signature with relaxed

    E-Print Network [OSTI]

    Fermilab

    CDF note 10798 Seach for the SM Higgs boson in the ET +b-jets signature with relaxed kinematic cuts) We present a search for the Higgs boson produced in association with a Z or W boson in the ET +b the Higgs boson signal from the remaining background. We check the goodness of our background modeling

  7. PHYSICAL REVIEW B 86, 075207 (2012) Optical signature of Mg-doped GaN: Transfer processes

    E-Print Network [OSTI]

    Nabben, Reinhard

    2012-01-01T23:59:59.000Z

    PHYSICAL REVIEW B 86, 075207 (2012) Optical signature of Mg-doped GaN: Transfer processes G; published 23 August 2012) Mg doping of high quality, metal organic chemical vapor deposition grown GaN films GaN:Mg grown on sapphire substrates and identify two Mg related acceptor states, one additional

  8. Z .Earth and Planetary Science Letters 139 1996 509519 Rock-magnetic signature of gas hydrates in accretionary prism

    E-Print Network [OSTI]

    Housen, Bernie

    Z .Earth and Planetary Science Letters 139 1996 509519 Rock-magnetic signature of gas hydrates with the presence of gas hydrates. Two indices Z 4 4. Z 4 .combining coercivity, remanence, and susceptibility that a `fossil gas hydrate zone' extended downwards to about 295 mbsf during the last glacial. The observed

  9. Infrared 3-4 Micron Spectroscopy of Infrared Luminous Galaxies with Possible Signatures of Obscured Active Galactic Nuclei

    E-Print Network [OSTI]

    Masatoshi Imanishi

    2006-02-10T23:59:59.000Z

    We present the results of infrared 2.8-4.1 micron (L-band) spectroscopy of nearby infrared luminous galaxies with possible signatures of dust-obscured active galactic nuclei (AGNs) in data at other wavelengths. The samples are chosen to include sources with a radio excess relative to far-infrared emission, strong absorption features in mid-infrared 5-11.5 micron spectra, unusually weak [CII] 158 micron emission relative to the far-infrared continuum, and radio galaxies classified optically as narrow-line objects. Our aim is to investigate whether the signatures of possible obscured AGNs can be detected in our L-band spectra, based on the strengths of emission and absorption features. Six of nine observed sources clearly show 3.3 micron polycyclic aromatic hydrocarbon (PAH) emission features, a good starburst indicator. An absorption feature at 3.1 micron due to ice-covered dust is detected in IRAS 04154+1755 and IRAS 17208-0014. The signature of a bare carbonaceous dust absorption feature at 3.4 micron is seen in NGC 1377. Our L-band spectra reveal strong signatures of obscured AGNs in all three optical Seyfert 2 galaxies (IRAS 04154+1755, Cygnus A, and 3C 234), and two galaxies classified optically as non-Seyferts (NGC 828 and NGC 1377). Among the remaining optical non-Seyferts, IRAS 17208-0014 might also show a buried AGN signature, whereas no explicit AGN evidence is seen in the L-band spectra of the mid-infrared absorption-feature source IRAS 15250+3609, and two weak [CII] emitters IC 860 and CGCG 1510.8+0725.

  10. Practical Cryptanalysis of iso/iec 9796-2 and emv Signatures Jean-Sebastien Coron1, David Naccache2, Mehdi Tibouchi2, and Ralf-Philipp Weinmann1

    E-Print Network [OSTI]

    Practical Cryptanalysis of iso/iec 9796-2 and emv Signatures Jean-Sebastien Coron1, David Naccache an existential signature forgery for two popular rsa signature standards, iso/iec 9796-1 and 2. Following this attack iso/iec 9796-1 was withdrawn. iso/iec 9796-2 was amended by increasing the message digest

  11. Searches for topological defect dark matter via non-gravitational signatures

    E-Print Network [OSTI]

    Y. V. Stadnik; V. V. Flambaum

    2014-08-03T23:59:59.000Z

    We propose schemes for the detection of topological defect dark matter using pulsars and other luminous extraterrestrial systems via non-gravitational signatures. The dark matter field, which makes up a defect, may interact with standard model particles, including quarks and the photon, resulting in the alteration of their masses. When a topological defect passes through a pulsar, its mass, radius and internal structure may be altered, resulting in a pulsar `quake'. A topological defect may also function as a cosmic dielectric material with a distinctive frequency-dependent index of refraction, which would give rise to the time delay of a periodic extraterrestrial light or radio signal, and the dispersion of a light or radio source in a manner distinct to a gravitational lens. A topological defect passing through Earth may give rise to temporary non-zero electric dipole moments for an electron, proton, neutron, nuclei and atoms. The biggest advantage of such astrophysical observations over recently proposed terrestrial detection methods is the much higher probability of a defect been found in the vast volumes of outer space compared with one passing through Earth itself.

  12. X-RAY SIGNATURE OF CHARGE EXCHANGE IN L-SHELL SULFUR IONS

    SciTech Connect (OSTI)

    Frankel, M.; Beiersdorfer, P.; Brown, G. V.; Gu, M. F. [Lawrence Livermore National Laboratory, CA, 94550 (United States); Kelley, R. L.; Kilbourne, C. A.; Porter, F. S. [NASA/Goddard Space Flight Center, Greenbelt, MD, 20771 (United States)], E-mail: frankel4@llnl.gov, E-mail: beiersdorfer1@llnl.gov

    2009-09-01T23:59:59.000Z

    The X-ray signature of L-shell charge exchange in sulfur was studied in the laboratory. A comparison of the charge exchange (CX) spectra with those obtained under electron-impact excitation showed marked differences. In the CX spectra, an enhancement was observed in the transitions from levels with high principal quantum numbers, n = 4, 5, 6 {yields} n = 2 in comparison with the n = 3 {yields} n = 2 transitions that dominate the direct excitation spectra. An even greater enhancement was recorded in the transitions from the levels of electron capture to the ground states: n = 7, 8, 9 {yields} n = 2. The spectra mainly consist of emission from S XIV, but lower charge states such as S XIII, S XII, and S XI also contribute. The results have been compared with observations made by the Chandra and XMM-Newton X-ray Observatories of Jupiter's polar regions. The enhancement we noticed in transitions from the high-n levels is not seen in the Chandra spectra.

  13. Spectroscopic signatures of proton transfer dynamics in the water dimer cation

    SciTech Connect (OSTI)

    Kamarchik, Eugene; Kostko, Oleg; Bowman, Joel M.; Ahmed, Musahid; Krylov, Anna I.

    2009-12-21T23:59:59.000Z

    Using full dimensional EOM-IP-CCSD/aug-cc-pVTZ potential energy surfaces, the photoelectron spectrum, vibrational structure, and ionization dynamics of the water dimer radical cation, (H2O)+2, were computed. We also report an experimental photoelectron spectrum which is derived from photoionization efficiency measurements and compares favorably with the theoretical spectrum. The vibrational structure is also compared with the recent experimental work of Gardenier et al. [J. Phys. Chem. A 113, 4772 (2009)] and the recent theoretical calculations by Cheng et al. [J. Phys. Chem. A 113 13779 (2009)]. A reduced dimensionality nuclear Hamiltonian was used to compute the ionization dynamics for both the ground state and first excited state of the cation. The dynamics show markedly different behavior and spectroscopic signatures depending on which state of the cation is accessed by the ionization. Ionization to the ground-state cation surface induces a hydrogen transfer which is complete within 50 femtoseconds, whereas ionization to the first excited state results in a much slower process.

  14. PopIII signatures in the spectra of PopII/I GRBs

    E-Print Network [OSTI]

    Ma, Q; Ciardi, B; Salvaterra, R

    2015-01-01T23:59:59.000Z

    We investigate signatures of population III (PopIII) stars in the metal-enriched environment of GRBs originating from population II-I (PopII/I) stars by using abundance ratios derived from numerical simulations that follow stellar evolution and chemical enrichment. We find that at $z>10$ more than $10%$ of PopII/I GRBs explode in a medium previously enriched by PopIII stars (we refer to them as GRBII$\\rightarrow$III). Although the formation of GRBII$\\rightarrow$III is more frequent than that of pristine PopIII GRBs (GRBIIIs), we find that the expected GRBII$\\rightarrow$III observed rate is comparable to that of GRBIIIs, due to the usually larger luminosities of these latter. GRBII$\\rightarrow$III events take place preferentially in small proto-galaxies with stellar masses $\\rm M_\\star \\sim 10^{4.5} - 10^7\\,\\rm M_\\odot$, star formation rates $\\rm SFR \\sim 10^{-3}-10^{-1}\\,\\rm M_\\odot/yr$ and metallicities $Z \\sim 10^{-4}-10^{-2}\\,\\rm Z_\\odot$. On the other hand, galaxies with $Z < 10^{-2.8}\\,\\rm Z_\\odot$ ar...

  15. Star Formation Signatures in the Condensation Downstream of HH 80N

    E-Print Network [OSTI]

    J. M. Girart; R. Estalella; S. Viti; D. A. Williams; P. T. P Ho

    2001-10-02T23:59:59.000Z

    HH80N is one of the Herbig-Haro objects that have associated quiescent dense clumps. We report CO and CS BIMA observations that reveal star formation within the HH80N dense clump. The CO emission reveals clearly a bipolar molecular outflow centered on the dense clump. The CS emission traces a ring-like structure of radius ~0.24 pc. The CS kinematics shows that the ring is collapsing with an infall speed of ~0.6 km/s. The required mass to produce the collapse is in agreement with previous ammonia observations of the 20 solar mass core, which is embedded within the CS structure. However, we cannot discard that the ring structure is expanding driven by protostellar winds, if the CS abundance if unusually high and the CO momentum rate is much higher than that measured, due to inclination and optical depth effects. The properties of the molecular outflow and of the dense core suggest that it harbors a Class 0 object. There are also signatures of interaction of the HH 80/81/80N outflow with the dense gas. In particular it is possible that the HH 80/81/80N outflow has triggered or at least speed up the star formation in this region.

  16. Star Formation Signatures in the Condensation Downstream of HH 80N

    E-Print Network [OSTI]

    Girart, J M; Viti, S; Williams, D A; Ho, P T P

    2001-01-01T23:59:59.000Z

    HH80N is one of the Herbig-Haro objects that have associated quiescent dense clumps. We report CO and CS BIMA observations that reveal star formation within the HH80N dense clump. The CO emission reveals clearly a bipolar molecular outflow centered on the dense clump. The CS emission traces a ring-like structure of radius ~0.24 pc. The CS kinematics shows that the ring is collapsing with an infall speed of ~0.6 km/s. The required mass to produce the collapse is in agreement with previous ammonia observations of the 20 solar mass core, which is embedded within the CS structure. However, we cannot discard that the ring structure is expanding driven by protostellar winds, if the CS abundance if unusually high and the CO momentum rate is much higher than that measured, due to inclination and optical depth effects. The properties of the molecular outflow and of the dense core suggest that it harbors a Class 0 object. There are also signatures of interaction of the HH 80/81/80N outflow with the dense gas. In partic...

  17. Seismic signatures of the Lodgepole fractured reservoir in Utah-Wyoming overthrust belt

    SciTech Connect (OSTI)

    Parra, J.; Collier, H.; Angstman, B.

    1997-08-01T23:59:59.000Z

    In low porosity, low permeability zones, natural fractures are the primary source of permeability which affect both production and injection of fluids. The open fractures do not contribute much to porosity, but they provide an increased drainage network to any porosity. An important approach to characterizing the fracture orientation and fracture permeability of reservoir formations is one based upon the effects of such conditions on the propagation of acoustic and seismic waves in the rock. We present the feasibility of using seismic measurement techniques to map the fracture zones between wells spaced 2400 ft at depths of about 1000 ft. For this purpose we constructed computer models (which include azimuthal anisotropy) using Lodgepole reservoir parameters to predict seismic signatures recorded at the borehole scale, crosswell scale, and 3 D seismic scale. We have integrated well logs with existing 2D surfaces seismic to produce petrophysical and geological cross sections to determine the reservoir parameters and geometry for the computer models. In particular, the model responses are used to evaluate if surface seismic and crosswell seismic measurements can capture the anisotropy due to vertical fractures. Preliminary results suggested that seismic waves transmitted between two wells will propagate in carbonate fracture reservoirs, and the signal can be received above the noise level at the distance of 2400 ft. In addition, the large velocities contrast between the main fracture zone and the underlying unfractured Boundary Ridge Member, suggested that borehole reflection imaging may be appropriate to map and fracture zone thickness variation and fracture distributions in the reservoir.

  18. Signature of deconfinement with spin down compression in cooling hybrid stars

    E-Print Network [OSTI]

    Morten Stejner; Fridolin Weber; Jes Madsen

    2009-04-05T23:59:59.000Z

    The thermal evolution of neutron stars is coupled to their spin down and the resulting changes in structure and chemical composition. This coupling correlates stellar surface temperatures with rotational state as well as time. We report an extensive investigation of the coupling between spin down and cooling for hybrid stars which undergo a phase transition to deconfined quark matter at the high densities present in stars at low rotation frequencies. The thermal balance of neutron stars is re-analyzed to incorporate phase transitions and the related latent heat self-consistently, and numerical calculations are undertaken to simultaneously evolve the stellar structure and temperature distribution. We find that the changes in stellar structure and chemical composition with the introduction of a pure quark matter phase in the core delay the cooling and produce a period of increasing surface temperature for strongly superfluid stars of strong and intermediate magnetic field strength. The latent heat of deconfinement is found to reinforce this signature if quark matter is superfluid and it can dominate the thermal balance during the formation of a pure quark matter core. At other times it is less important and does not significantly change the thermal evolution.

  19. Calcite precipitation dominates the electrical signatures of zero valent iron columns under simulated field conditions

    SciTech Connect (OSTI)

    Yuxin Wu; Roelof Versteeg; Lee Slater; Doug Labrecque

    2009-05-01T23:59:59.000Z

    Calcium carbonate is a major secondary mineral precipitate that influences PRB reactivity and hydraulic performance. In this study, we conducted column experiments to investigate electrical signatures resulting from concurrent CaCO3 and iron oxides precipitation in two simulated PRB media. Solid phase analysis identified CaCO3 (calcite and aragonite) as a major mineral phase throughout the columns, with magnetite being another major phase present close to the influent. Electrical measurements revealed a consistent decrease in conductivity and polarization magnitude of both columns, suggesting that the electrically insulating CaCO3 dominates the electrical response despite the presence of both electrically conductive iron oxides and CaCO3 precipitates. SEM/EDX imaging suggests that the electrical properties result from the geometrical arrangement of the mineral phases. The CaCO3 forms an insulating film on ZVI/magnetite surfaces, which we assume restricts redox-driven transfer of electric charge between the pore electrolyte and ZVI particles, as well as across interconnected ZVI particles. As surface reactivity also depends on the ability of the surface to engage in redox reactions, electrical measurements may provide a minimally invasive technology for monitoring reactivity loss.

  20. Solvent Extraction of Chemical Attribution Signature Compounds from Painted Wall Board: Final Report

    SciTech Connect (OSTI)

    Wahl, Jon H.; Colburn, Heather A.

    2009-10-29T23:59:59.000Z

    This report summarizes work that developed a robust solvent extraction procedure for recovery of chemical attribution signature (CAS) compound dimethyl methyl phosphonate (DMMP) (as well as diethyl methyl phosphonate (DEMP), diethyl methyl phosphonothioate (DEMPT), and diisopropyl methyl phosphonate (DIMP)) from painted wall board (PWB), which was selected previously as the exposed media by the chemical attribution scientific working group (CASWG). An accelerated solvent extraction approach was examined to determine the most effective method of extraction from PWB. Three different solvent systems were examined, which varied in solvent strength and polarity (i.e., 1:1 dichloromethane : acetone,100% methanol, and 1% isopropanol in pentane) with a 1:1 methylene chloride : acetone mixture having the most robust and consistent extraction for four original target organophosphorus compounds. The optimum extraction solvent was determined based on the extraction efficiency of the target analytes from spiked painted wallboard as determined by gas chromatography x gas chromatography mass spectrometry (GCxGC-MS) analysis of the extract. An average extraction efficiency of approximately 60% was obtained for these four compounds. The extraction approach was further demonstrated by extracting and detecting the chemical impurities present in neat DMMP that was vapor-deposited onto painted wallboard tickets.

  1. Water O?H Stretching Raman Signature for Strong Acid Monitoring via Multivariate Analysis

    SciTech Connect (OSTI)

    Casella, Amanda J.; Levitskaia, Tatiana G.; Peterson, James M.; Bryan, Samuel A.

    2013-04-16T23:59:59.000Z

    Spectroscopic techniques have been applied extensively for quantification and analysis of solution compositions. In addition to static measurements, these techniques have been implemented in flow systems providing real-time solution information. A distinct need exists for information regarding acid concentration as it affects extraction efficiency and selectivity of many separation processes. Despite of the seeming simplicity of the problem, no practical solution has been offered yet particularly for the large-scale schemes involving toxic streams such as highly radioactive nuclear wastes. Classic potentiometric technique is not amiable for on-line measurements in nuclear fuel reprocessing due to requirements of frequent calibration/maintenance and poor long-term stability in the aggressive chemical and radiation environments. In this work, the potential of using Raman spectroscopic measurements for on-line monitoring of strong acid concentration in the solutions relevant to the dissolved used fuel was investigated. The Raman water signature was monitored and recorded for nitric and hydrochloric acid solution systems of systematically varied chemical composition, ionic strength, and temperature. The generated Raman spectroscopic database was used to develop predictive chemometric models for the quantification of the acid concentration (H+), neodymium concentration (Nd3+), nitrate concentration (NO3-), density, and ionic strength. This approach was validated using a flow solvent extraction system.

  2. The Signature of Primordial Grain Growth in the Polarized Light of the AU Mic Debris Disk

    E-Print Network [OSTI]

    James R. Graham; Paul G. Kalas; Brenda C. Matthews

    2006-09-12T23:59:59.000Z

    We have used the Hubble Space Telescope/ACS coronagraph to make polarization maps of the AU Mic debris disk. The fractional linear polarization rises monotonically from about 0.05 to 0.4 between 20 and 80 AU. The polarization is perpendicular to the disk, indicating that the scattered light originates from micron sized grains in an optically thin disk. Disk models, which simultaneously fit the surface brightness and polarization, show that the inner disk (< 40-50 AU) is depleted of micron-sized dust by a factor of more than 300, which means that the disk is collision dominated. The grains have high maximum linear polarization and strong forward scattering. Spherical grains composed of conventional materials cannot reproduce these optical properties. A Mie/Maxwell-Garnett analysis implicates highly porous (91-94%) particles. In the inner Solar System, porous particles form in cometary dust, where the sublimation of ices leaves a "bird's nest" of refractory organic and silicate material. In AU Mic, the grain porosity may be primordial, because the dust "birth ring" lies beyond the ice sublimation point. The observed porosities span the range of values implied by laboratory studies of particle coagulation by ballistic cluster-cluster aggregation. To avoid compactification, the upper size limit for the parent bodies is in the decimeter range, in agreement with theoretical predictions based on collisional lifetime arguments. Consequently, AU Mic may exhibit the signature of the primordial agglomeration process whereby interstellar grains first assembled to form macroscopic objects.

  3. Searching for isovector signatures in the neutron-rich oxygen and calcium isotopes

    E-Print Network [OSTI]

    Wei-Chia Chen; J. Piekarewicz

    2015-03-10T23:59:59.000Z

    We search for potential isovector signatures in the neutron-rich oxygen and calcium isotopes within the framework of a relativistic mean-field theory with an exact treatment of pairing correlations. To probe the isovector sector we calibrate a few relativistic density functionals using the same isoscalar constraints but with one differing isovector assumption. It is found that under certain conditions, the isotopic chain in oxygen can be made to terminate at the experimentally observed ${}^{24}$O isotope and in the case of the calcium isotopes at ${}^{60}$Ca. To produce such behavior, the resulting symmetry energy must be soft, with predicted values for the symmetry energy and its slope at saturation density being $J\\!=\\!(30.92\\pm0.47)$ MeV and $L\\!=\\!(51.0\\pm1.5)$ MeV, respectively. As a consequence, the neutron-skin thickness of ${}^{208}$Pb is rather small: $R_{\\rm skin}^{208}\\!=\\!(0.161\\pm0.011)$ fm. This same model - labelled "FSUGarnet" - predicts $R_{1.4}\\!=\\!(13.1\\pm0.1)$ km for the radius of a "canonical" 1.4$M_{\\odot}$ neutron star, yet is also able to support a two-solar-mass neutron star.

  4. Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds

    E-Print Network [OSTI]

    Nancy Y. Kiang; Antigona Segura; Giovanna Tinetti; Govindjee; Robert E. Blankenship; Martin Cohen; Janet Siefert; David Crisp; Victoria S. Meadows

    2007-01-12T23:59:59.000Z

    As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a different parent star. We take planetary atmospheric compositions simulated by Segura, et al. (2003, 2005) for Earth-like planets around observed F2V and K2V stars, modeled M1V and M5V stars, and around the active M4.5V star AD Leo; our scenarios use Earth's atmospheric composition as well as very low O2 content in case anoxygenic photosynthesis dominates. We calculate the incident spectral photon flux densities at the surface of the planet and under water. We identify bands of available photosynthetically relevant radiation and find that photosynthetic pigments on planets around F2V stars may peak in absorbance in the blue, K2V in the red-orange, and M stars in the NIR, in bands at 0.93-1.1 microns, 1.1-1.4 microns, 1.5-1.8 microns, and 1.8-2.5 microns. In addition, we calculate wavelength restrictions for underwater organisms and depths of water at which they would be protected from UV flares in the early life of M stars. We estimate the potential productivity for both surface and underwater photosynthesis, for both oxygenic and anoxygenic photosynthesis, and for hypothetical photosynthesis in which longer wavelength, multi-photosystem series are used.

  5. Gas around galaxy haloes - II: hydrogen absorption signatures from the environments of galaxies at redshifts 2 < z < 3

    E-Print Network [OSTI]

    Meiksin, A; Tittley, E R

    2015-01-01T23:59:59.000Z

    We compare predictions of large-scale cosmological hydrodynamical simulations for neutral hydrogen absorption signatures in the vicinity of 1e11 - 1e12.5 MSun haloes with observational measurements. Two different hydrodynamical techniques and a variety of prescriptions for gas removal in high density regions are examined. Star formation and wind feedback play only secondary roles in the HI absorption signatures outside the virial radius, but play important roles within. Accordingly, we identify three distinct gaseous regions around a halo: the virialized region, the mesogalactic medium outside the virial radius arising from the extended haloes of galaxies out to about two turnaround radii, and the intergalactic medium beyond. Predictions for the amount of absorption from the mesogalactic and intergalactic media are robust across different methodologies, and the predictions agree with the amount of absorption observed around star-forming galaxies and QSO host galaxies. Recovering the measured amount of absorpt...

  6. Signatures of Incomplete Paschen-Back Splitting in the Polarization Profiles of the He I 10830 multiplet

    E-Print Network [OSTI]

    H. Socas-Navarro; J. Trujillo Bueno; E. Landi Degl'Innocenti

    2004-08-31T23:59:59.000Z

    We investigate the formation of polarization profiles induced by a magnetic field in the He I multiplet at 1083,0 nm . Our analysis considers the Zeeman splitting in the incomplete Paschen-Back regime. The effects turn out to be important and produce measurable signatures on the profiles, even for fields significantly weaker than the level-crossing field ($\\sim$400 G). When compared to profiles calculated with the usual linear Zeeman effect, the incomplete Paschen-Back profiles exhibit the following conspicuous differences: a) a non-Doppler blueshift of the Stokes V zero-crossing wavelength of the blue component; b) area and peak asymmetries, even in the absence of velocity and magnetic gradients; c) a $\\sim$25% reduction in the amplitude of the red component. These features do not vanish in the weak field limit. The spectral signatures that we analyze in this paper may be found in previous observations published in the literature.

  7. 2 Solar flare signatures of the ionospheric GPS total electron content 3 J. Y. Liu,1,2

    E-Print Network [OSTI]

    Chen, Yuh-Ing

    2 Solar flare signatures of the ionospheric GPS total electron content 3 J. Y. Liu,1,2 C. H. Lin,1, ionospheric solar flare effects on the total electron content (TEC) and 7 associated time rate of change (r. The occurrence times and 9 locations of 11 solar flares are isolated from the 18 A X-ray radiations of the 10

  8. Identification of Signatures of Selection in Bos Taurus Beef and Dairy Cattle Using Genome-wide SNP Genotypes

    E-Print Network [OSTI]

    Choi, Jung Woo

    2010-10-12T23:59:59.000Z

    IDENTIFICATION OF SIGNATURES OF SELECTION IN BOS TAURUS BEEF AND DAIRY CATTLE USING GENOME-WIDE SNP GENOTYPES A Dissertation by JUNG WOO CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial... Dissertation by JUNG WOO CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Clare A. Gill Committee Members...

  9. Index Calculation Attacks on RSA Signature and Encryption Jean-Sebastien Coron1, Yvo Desmedt2, David Naccache1,

    E-Print Network [OSTI]

    Minnesota, University of

    a twitch in the technique made it effective against two very popular RSA signature standards, namely iso/iec 9796-1 and iso/iec 9796-2. Following the attack iso/iec 9796-1 was withdrawn and iso/iec 9796-2 amended. In this paper, we recall Desmedt and Odlyzko's attack as well as its application to the cryptanalysis of iso/iec

  10. Signature of the coronal hole near the north crest equatorial anomaly over Egypt during the strong geomagnetic storm

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Signature of the coronal hole near the north crest equatorial anomaly over Egypt during the strong hole effect. We use multi-instruments as SCINDA-GPS station at Helwan, Egypt (29.86 N, 31.32 E) and ASW-MAGDAS station at Aswan, Egypt (23.59 N, 32.51 E) in the equatorial region. At the beginning of the storm our

  11. At their Pennsylvania State University lab, Bruce Logan watches as research colleague

    E-Print Network [OSTI]

    ://www.sciencedaily.com/releases/2004/02/ 040224081342.htm Fuel-cell Microbes' Double Duty: Treat Water, Make Energy ScienceDaily (Feb and the electrons coming down the circuit combine to create water. In other microbial fuel cells, microbes have been checks the circuit connections on the prototype microbial fuel cell. The jars behind it contain

  12. Energy Conservation Design Features of the ARCO Metals Logan County Aluminum Process Complex

    E-Print Network [OSTI]

    Speer, J. A.

    1983-01-01T23:59:59.000Z

    . Annealing of aluminum coils will be accomplished in radiant tube furnaces with variable speed fan drives in an inert atmosphere produced by an electric powered air separation plant. These furnaces will use recuperative burners. The HVAC system incorporates...

  13. Logan Daum > Analyst - DC Energy > Center Alumni > The Energy Materials

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatestCenter (LMI-EFRC)DepartmentSecurityLodgingCenter

  14. B. Grant Logan, 1980 | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternativeOperationalAugust AugustInstruments onG-I,About Us » NewsB.

  15. MEMORANDUM To: United States Department of Energy From: Erica Logan, Information Technology Industry Council

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomyDr. Ernest Moniz,Wednesday,MEMORANDUM TO:April24

  16. MEMORANDUM To: United States Department of Energy From: Erica Logan, Information Technology Industry Council

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomyDr. Ernest Moniz,Wednesday,MEMORANDUM TO:April24June

  17. An Energy Signature Scheme for Steam Trap Assessment and Flow Rate Estimation Using Pipe-Induced Acoustic Measurements

    SciTech Connect (OSTI)

    Olama, Mohammed M [ORNL; Allgood, Glenn O [ORNL; Kuruganti, Phani Teja [ORNL; Lake, Joe E [ORNL

    2012-01-01T23:59:59.000Z

    The US Congress has passed legislation dictating that all government agencies establish a plan and process for improving energy efficiencies at their sites. In response to this legislation, Oak Ridge National Laboratory (ORNL) has recently conducted a pilot study to explore the deployment of a wireless sensor system for a real-time measurement-based energy efficiency optimization framework within the steam distribution system within the ORNL campus. We make assessments on the real-time status of the distribution system by observing the state measurements of acoustic sensors mounted on the steam pipes/traps/valves. In this paper, we describe a spectral-based energy signature scheme that interprets acoustic vibration sensor data to estimate steam flow rates and assess steam traps health status. Experimental results show that the energy signature scheme has the potential to identify different steam trap health status and it has sufficient sensitivity to estimate steam flow rate. Moreover, results indicate a nearly quadratic relationship over the test region between the overall energy signature factor and flow rate in the pipe. The analysis based on estimated steam flow and steam trap status helps generate alerts that enable operators and maintenance personnel to take remedial action. The goal is to achieve significant energy-saving in steam lines by monitoring and acting on leaking steam pipes/traps/valves.

  18. The l[subscript 1]-l[subscript 2] regularization framework unmasks the hypoxia signature hidden in the transcriptome of a set of heterogeneous neuroblastoma cell lines

    E-Print Network [OSTI]

    Varesio, Luigi

    Background: Gene expression signatures are clusters of genes discriminating different statuses of the cells and their definition is critical for understanding the molecular bases of diseases. The identification of a gene ...

  19. Signatures of charge inhomogeneities in the infrared spectra of topological insulators Bi This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Dordevic, Sasha V.

    Signatures of charge inhomogeneities in the infrared spectra of topological insulators Bi 2 Se 3.1088/0953-8984/25/7/075501 Signatures of charge inhomogeneities in the infrared spectra of topological insulators Bi2Se3, Bi2Te3 and Sb2/075501 Abstract We present the results of an infrared spectroscopy study of topological insulators Bi2Se3, Bi2Te3

  20. Seismic signatures of multiphase reservoir fluid distributions: Application to reservoir monitoring

    SciTech Connect (OSTI)

    Packwood, J.L.; Mavko, G.M.

    1995-12-31T23:59:59.000Z

    We present an investigation of the effect of multi-phase pore fluid distributions on the seismic velocity of saturated rock as a function of temperature and pressure. The purpose is to show how different fluid distributions might result in different seismic signatures. This is the rock physics link between reservoir simulation and seismic monitoring of hydrocarbon; (1) Uniform effective fluid, (2) Fluid in patches, and (3) Laminated fluid. The latter two models have heterogeneous distributions, and demonstrate that they have the same velocity characteristics. We used Beaver sandstone with a porosity of 6.4% and 5 MPa confining pressure as the rock matrix for our calculations. The uniform fluid model shows poor sensitivity to fluid saturation, with a variation in velocity of less than 1% when gas saturation exceeds 2%. The heterogeneous models show a fairly linear dependence of velocity on saturation with a variation of 7%. We also investigate the effect of oil distillation on seismic velocities during steam flooding. Comparisons velocities calculated using the patches model at temperature of 20{degrees}C and 150{degrees}C, the choice of hydrocarbon components is more critical at high values of oil saturation than at low values of oil saturation. In regions of high oil saturation, there is less than 0.5% variation in velocity using these components. The velocity variation using the effective fluid model at the same conditions is less than 0.5% over the entire range of gas saturation greater than 2%, indicating that the choice of hydrocarbons is not as critical as in the patches model.

  1. NON-CONTACT ACOUSTO-THERMAL SIGNATURES OF PLASTIC DEFORMATION IN TI-6AL-4V

    SciTech Connect (OSTI)

    Welter, J. T.; Jata, K. V.; Blodgett, M. P. [Materials and Manufacturing Directorate, Nondestructive Evaluation Branch Wright-Patterson AFB, OH 45433 (United States); Malott, G. [SOCHE, 3155 Research Blvd, Dayton, OH 45420 (United States); Schehl, N.; Sathish, S. [Structural Integrity Division, University of Dayton Research Institute, Dayton, OH 45469 (United States)

    2010-02-22T23:59:59.000Z

    Plastic deformation introduces changes in a material which include increases in: dislocations, strains, residual stress, and yield stress. However, these changes have a very small impact on the material properties such as elastic modulus, conductivity and ultrasonic wave speed. This is due to the fact that interatomic forces govern these properties, and they are not affected by plastic deformation to any large degree. This is evident from the fact that the changes in electrical resistance and ultrasonic velocity in plastically deformed and virgin samples are very small and can only be determined by highly controlled experiments. Except for X-ray diffraction, there are no direct nondestructive methods for measuring strain and the residual stress. This paper presents an application of the non-contact acousto-thermal signature (NCATS) NDE methodology to detect plastic deformation in flat dog bone Ti-6Al-4V samples. Results of the NCATS measurements on samples subjected to incremental amounts of plastic deformation are presented. The maximum temperature attained by the sample due to acoustic excitation is found to be sensitive to the amount of plastic strain. It is observed that the temperature induced by acoustic excitation increases to a peak followed by a decrease to failure. The maximum temperature peak occurs at plastic strains of 12-14%. It is observed that there is a correlation between the peak in maximum temperature rise and the strain at the experimentally determined ultimate tensile strength. A microstructural based explanation for this will be presented. The results are discussed in reference to utilizing this technique for detection and evaluation of plastic deformation.

  2. State-resolved imaging of CO from propenal photodissociation: Signatures of concerted three-body dissociation

    SciTech Connect (OSTI)

    Dey, Arghya; Fernando, Ravin; Suits, Arthur G., E-mail: asuits@chem.wayne.edu [Department of Chemistry, Wayne State University, Detroit, Michigan 48202 (United States)

    2014-04-21T23:59:59.000Z

    State-selected DC sliced images of propenal photodissociation show clear signatures of a novel synchronous concerted three-body dissociation of propenal recently proposed by Lee and co-workers to give C{sub 2}H{sub 2} + H{sub 2} + CO [S. H. Lee, C. H. Chin, C. Chaudhuri, ChemPhysChem 12, 753 (2011)]. Unlike any prior example of a concerted 3-body dissociation event, this mechanism involves breaking three distinct bonds and yields 3 distinct molecules. DC sliced images of CO fragments were recorded for a range of rotational levels for both v = 0 and v = 1. The results show formation of two distinct CO product channels having dissimilar translational energy distributions with characteristic rovibrational state distributions. The images for CO (v = 0) show a large contribution of slower CO fragments at lower rotational levels (J = 525). This slow component is completely absent from the v = 1 CO images. The images for the higher rotational levels of the v = 0 and v = 1 CO are nearly identical, and this provides a basis for decomposing the two channels for v = 0. The quantum state and translational energy distributions for the slow channel are readily assigned to the 3-body dissociation based on the properties of the transition state. The faster CO fragments dominating the higher rotational levels in both v = 0 and v = 1 are attributed to formation of CH{sub 3}CH + CO, also in agreement with the inferences based on previous non-state-resolved measurements with supporting theoretical calculations.

  3. Compromise between neutrino masses and collider signatures in the type-II seesaw model

    SciTech Connect (OSTI)

    Chao Wei; Luo Shu; Xing Zhizhong; Zhou Shun [Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, Beijing 100049 (China)

    2008-01-01T23:59:59.000Z

    A natural extension of the standard SU(2){sub L}xU(1){sub Y} gauge model to accommodate massive neutrinos is to introduce one Higgs triplet and three right-handed Majorana neutrinos, leading to a 6x6 neutrino mass matrix which contains three 3x3 submatrices, M{sub L}, M{sub D} and M{sub R}. We show that three light Majorana neutrinos (i.e., the mass eigenstates of {nu}{sub e}, {nu}{sub {mu}}, and {nu}{sub {tau}}) are exactly massless in this model, if and only if M{sub L}=M{sub D}M{sub R}{sup -1}M{sub D}{sup T} exactly holds. This no-go theorem implies that small but nonvanishing neutrino masses may result from a significant but incomplete cancellation between M{sub L} and M{sub D}M{sub R}{sup -1}M{sub D}{sup T} terms in the Type-II seesaw formula, provided three right-handed Majorana neutrinos are of O(1) TeV and experimentally detectable at the LHC. We propose three simple Type-II seesaw scenarios with the A{sub 4}xU(1){sub X} flavor symmetry and its explicit breaking to interpret the observed neutrino mass spectrum and neutrino mixing pattern. Such a TeV-scale neutrino model can be tested in two complementary ways: (1) searching for possible collider signatures of lepton number violation induced by the right-handed Majorana neutrinos and doubly-charged Higgs particles; and (2) searching for possible consequences of unitarity violation of the 3x3 neutrino mixing matrix in the future long-baseline neutrino oscillation experiments.

  4. GRANULATION SIGNATURES IN THE SPECTRUM OF THE VERY METAL-POOR RED GIANT HD 122563

    SciTech Connect (OSTI)

    RamIrez, I. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Collet, R.; Asplund, M. [Max Planck Institut fuer Astrophysik, Postfach 1317, 85741 Garching (Germany); Lambert, D. L. [McDonald Observatory and Department of Astronomy, University of Texas, Austin, TX 78712-0259 (United States); Allende Prieto, C. [Instituto de Astrofisica de Canarias, 38205, La Laguna, Tenerife (Spain)

    2010-12-20T23:59:59.000Z

    A very high resolution (R = {lambda}/{Delta}{lambda} = 200, 000), high signal-to-noise ratio (S/N {approx_equal} 340) blue-green spectrum of the very metal-poor ([Fe/H] {approx_equal} -2.6) red giant star HD 122563 has been obtained by us at McDonald Observatory. We measure the asymmetries and core wavelengths of a set of unblended Fe I lines covering a wide range of line strength. Line bisectors exhibit the characteristic C-shape signature of surface convection (granulation) and they span from about 100 m s{sup -1} in the strongest Fe I features to 800 m s{sup -1} in the weakest ones. Core wavelength shifts range from about -100 to -900 m s{sup -1}, depending on line strength. In general, larger blueshifts are observed in weaker lines, but there is increasing scatter with increasing residual flux. Assuming local thermodynamic equilibrium (LTE), we synthesize the same set of spectral lines using a state-of-the-art three-dimensional (3D) hydrodynamic simulation for a stellar atmosphere of fundamental parameters similar to those of HD 122563. We find good agreement between model predictions and observations. This allows us to infer an absolute zero point for the line shifts and radial velocity. Moreover, it indicates that the structure and dynamics of the simulation are realistic, thus providing support to previous claims of large 3D-LTE corrections to elemental abundances and fundamental parameters of very metal-poor red giant stars obtained with standard 1D-LTE spectroscopic analyses, as suggested by the hydrodynamic model used here.

  5. THE SPECTROSCOPIC SIGNATURE OF QUASI-PERIODIC UPFLOWS IN ACTIVE REGION TIMESERIES

    SciTech Connect (OSTI)

    Tian Hui; McIntosh, Scott W. [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 8037 (United States); De Pontieu, Bart, E-mail: htian@ucar.edu, E-mail: mscott@ucar.edu, E-mail: bdp@lmsal.com [Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. ADBS, Bldg. 252, Palo Alto, CA 94304 (United States)

    2011-02-01T23:59:59.000Z

    Quasi-periodic propagating disturbances are frequently observed in coronal intensity image sequences. These disturbances have historically been interpreted as being the signature of slow-mode magnetoacoustic waves propagating into the corona. The detailed analysis of Hinode EUV Imaging Spectrometer (EIS) timeseries observations of an active region (known to contain propagating disturbances) shows strongly correlated, quasi-periodic, oscillations in intensity, Doppler shift, and line width. No frequency doubling is visible in the latter. The enhancements in the moments of the line profile are generally accompanied by a faint, quasi-periodically occurring, excess emission at {approx}100 km s{sup -1} in the blue wing of coronal emission lines. The correspondence of quasi-periodic excess wing emission and the moments of the line profile indicates that repetitive high-velocity upflows are responsible for the oscillatory behavior observed. Furthermore, we show that the same quasi-periodic upflows can be directly identified in a simultaneous image sequence obtained by the Hinode X-Ray Telescope. These results are consistent with the recent assertion of De Pontieu and McIntosh that the wave interpretation of the data is not unique. Indeed, given that several instances are seen to propagate along the direction of the EIS slit that clearly shows in-phase, quasi-periodic variations of intensity, velocity, width (without frequency doubling), and blue wing enhanced emission, this data set would appear to provide a compelling example that upflows are more likely to be the main cause of the quasi-periodicities observed here, as such correspondences are hard to reconcile in the wave paradigm.

  6. Double Beta Decay, Lepton Flavour Violation and Collider Signatures of Left-Right Symmetric Models with Spontaneous D Parity Breaking

    E-Print Network [OSTI]

    Deppisch, Frank F; Patra, Sudhanwa; Sahu, Narendra; Sarkar, Utpal

    2014-01-01T23:59:59.000Z

    We propose a class of left-right symmetric models (LRSMs) with spontaneous D parity breaking, where SU(2)_R breaks at the TeV scale while discrete left-right symmetry breaks around 10^9 GeV. By embedding this framework in a non-supersymmetric SO(10) Grand Unified Theory (GUT) with Pati-Salam symmetry as the highest intermediate breaking step, we obtain g_R / g_L ~ 0.6 between the right- and left-handed gauge couplings at the TeV scale. This leads to a suppression of beyond the Standard Model phenomena induced by the right-handed gauge coupling. Here we focus specifically on the consequences for neutrinoless double beta decay, low energy lepton flavour violation and LHC signatures due to the suppressed right handed currents. Interestingly, the reduced g_R allows us to interpret an excess of events observed recently in the range of 1.9 TeV to 2.4 TeV by the CMS group at the LHC as the signature of a right handed gauge boson in LRSMs with spontaneous D parity breaking. Moreover, the reduced right-handed gauge co...

  7. Distinguishing Z' signatures and the Littlest Higgs model in e+e- Colliders at sqrt{s} \

    E-Print Network [OSTI]

    F. M. L. de Almeida Jr.; Y. A. Coutinho; J. A. Martins Simoes; A. J. Ramalho; S. Wulck; M. A. B. do Vale

    2007-02-13T23:59:59.000Z

    There is a recent proposal identifying the Higgs particle of the Standard Model as a pseudo Nambu-Goldstone boson. This new broken symmetry introduces new particles and new interactions. Among these new interactions a central role to get a new physics is played by two new heavy neutral gauge bosons. We have studied the two new neutral currents in the Littlest Higgs model and compared with other extended models. For high energy e+e- colliders we present a clear signature for these two new neutral gauge bosons that can indicate the theoretical origin of these particles. Previous analysis by other authors were done at collider energies equal to the new gauge boson mass M_{A_H}. In this paper we show that asymmetries in fermion antifermion production can display model differences in the case M_{A_H} > sqrt{s}. For M_{A_H} gamma + f + anti-f can present a model dependence. For higher energies, the hard photon energy distribution can be a clear signature for both new neutral gauge bosons. New bounds for the new neutral gauge boson masses are also presented.

  8. Probing the coupling of heavy dark matter to nucleons by detecting neutrino signature from the Earth core

    E-Print Network [OSTI]

    Guey-Lin Lin; Yen-Hsun Lin

    2014-04-02T23:59:59.000Z

    We argue that the detection of neutrino signature from the Earth core is an ideal approach for probing the coupling of heavy dark matter ($m_{\\chi}>10^{4}$ GeV) to nucleons. We first note that direct searches for dark matter (DM) in such a mass range do not provide stringent constraints. Furthermore the energies of neutrinos arising from DM annihilations inside the Sun cannot exceed a few TeV at the Sun surface due to the attenuation effect. Therefore the sensitivity to the heavy DM coupling is lost. Finally, the detection of neutrino signature from galactic halo can only probe DM annihilation cross sections. After presenting the rationale of our studies, we discuss the event rates in IceCube and KM3NeT arising from the neutrino flux produced by annihilations of Earth-captured DM heavier than $10^{4}$ GeV. The IceCube and KM3NeT sensitivities to spin independent DM-proton scattering cross section $\\sigma_{\\chi p}$ and isospin violation effect in this mass range are presented. The implications of our results are also discussed.

  9. Gamma-Ray Signatures for State-Of-Health Analysis and Monitoring of Widely-Arrayed Radiation Portal Monitor Systems

    SciTech Connect (OSTI)

    Woodring, Mitchell L.; Ely, James H.; Angel, Linda K.; Wright, Ingrid H.; Eslinger, Melany A.; Pospical, A. Jill; Ellis, John E.

    2008-05-15T23:59:59.000Z

    Pacific Northwest National Laboratory (PNNL) has deployed a large array of radiation portal monitors for the Department of Homeland Security U.S. Customs and Border Protection. These portal monitors scan incoming vehicles crossing the U.S. border and shipping containers leaving international ports for radioactive material via gamma-ray and neutron detection. Data produced and captured by these systems are recorded for every vehicle related to radiation signature, sensor/system status, and local background, as well as a host of other variables. Within the Radiation Portal Monitor Project at PNNL, state-of-health observation and analysis for the whole RPM system using these data to determine functionality and performance is being developed. (PIET-43741-TM-492)

  10. Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory

    SciTech Connect (OSTI)

    Abreu, P.; /Lisbon, IST; Aglietta, M.; /Turin U. /INFN, Turin; Ahn, E.J.; /Fermilab; Albuquerque, I.F.M.; /Sao Paulo U.; Allard, D.; /APC, Paris; Allekotte, I.; /Buenos Aires, CONICET; Allen, J.; /New York U.; Allison, P.; /Ohio State U.; Alvarez Castillo, J.; /Mexico U., ICN; Alvarez-Muniz, J.; /Santiago de Compostela U.; Ambrosio, M.; /Naples U. /INFN, Naples /Nijmegen U., IMAPP

    2011-11-01T23:59:59.000Z

    We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or ''multiplets'') which exhibit a correlation between arrival direction and the inverse of the energy. These signatures are expected from sets of events coming from the same source after having been deflected by intervening coherent magnetic fields. The observation of several events from the same source would open the possibility to accurately reconstruct the position of the source and also measure the integral of the component of the magnetic field orthogonal to the trajectory of the cosmic rays. We describe the largest multiplets found and compute the probability that they appeared by chance from an isotropic distribution. We find no statistically significant evidence for the presence of multiplets arising from magnetic deflections in the present data.

  11. Double Beta Decay, Lepton Flavour Violation and Collider Signatures of Left-Right Symmetric Models with Spontaneous D Parity Breaking

    E-Print Network [OSTI]

    Frank F. Deppisch; Tomas E. Gonzalo; Sudhanwa Patra; Narendra Sahu; Utpal Sarkar

    2014-10-23T23:59:59.000Z

    We propose a class of left-right symmetric models (LRSMs) with spontaneous D parity breaking, where SU(2)_R breaks at the TeV scale while discrete left-right symmetry breaks around 10^9 GeV. By embedding this framework in a non-supersymmetric SO(10) Grand Unified Theory (GUT) with Pati-Salam symmetry as the highest intermediate breaking step, we obtain g_R / g_L ~ 0.6 between the right- and left-handed gauge couplings at the TeV scale. This leads to a suppression of beyond the Standard Model phenomena induced by the right-handed gauge coupling. Here we focus specifically on the consequences for neutrinoless double beta decay, low energy lepton flavour violation and LHC signatures due to the suppressed right handed currents. Interestingly, the reduced g_R allows us to interpret an excess of events observed recently in the range of 1.9 TeV to 2.4 TeV by the CMS group at the LHC as the signature of a right handed gauge boson in LRSMs with spontaneous D parity breaking. Moreover, the reduced right-handed gauge coupling also strongly suppresses the non-standard contribution of heavy states to the neutrinoless double beta decay rate as well as the amplitude of low energy lepton flavour violating processes. In a dominant type-II Seesaw mechanism of neutrino mass generation, we find that both sets of observables provide stringent and complimentary bounds which make it challenging to observe the scenario at the LHC.

  12. The Institute of Geophysics, Planetary Physics and Signatures (IGPPS) at Los Alamos National Laboratory (LANL) is one of the Los Alamos National Laboratory science

    E-Print Network [OSTI]

    The Institute of Geophysics, Planetary Physics and Signatures (IGPPS) at Los Alamos National: Geophysics Global Climate Space Science Astrophysics and Cosmology FY15 CALL FOR RESEARCH PROPOSALS and quality of life in our increasingly technological society. 3. Solid earth geoscience (geophysics

  13. Generated using version 3.1.2 of the official AMS LATEX template Electric Field Reversal in Sprite Electric Field Signature1

    E-Print Network [OSTI]

    Hager, William

    Electric Field Signature1 Richard G. Sonnenfeld Langmuir Laboratory and Physics Department, New Mexico trigonometry), resulting in a net positive39 electric field at the observer. The intermediate point between P1Generated using version 3.1.2 of the official AMS LATEX template Electric Field Reversal in Sprite

  14. Use of outcrop analogues to predict lithology influence on the seismic signature Kathleen Baker* and Mike Batzle, Colorado School of Mines, Richard Gibson, Texas A&M University

    E-Print Network [OSTI]

    with outcrop studies, well log and seismic interpretation of deep-water sediments, forward and inverse modeling the interpretation of subsurface information such as well logs, seismic data and regional geologic models. Here we the influence of lithology on the seismic signature. Method To better interpret seismic DHIs it is essential

  15. Deep-SeaResearch,1976,Vcl. 23, pp. 909 to 914, Pergamon Press. Printed in Great Britain. The spectral signature of salt fingers

    E-Print Network [OSTI]

    Linden, Paul F.

    . The spectral signature of salt fingers HERBERTE. HUPPERT*and P. F. LINDEN* (Received19December1975;in or vertical velocitywhich mightbe measured by a sensor moving through a field of salt fingers are considered and perfectorientation of the salt fingers. The resultingspectra rise to a peak close to ~o= (x/2)kvand decrease rapidly

  16. Search for New Physics with a Dijet Plus Missing ET Signature in pp? Collisions at ?s=1.96??TeV

    E-Print Network [OSTI]

    Bauer, Gerry P.

    We present results of a signature-based search for new physics using a dijet plus missing transverse energy (E[subscript T]T) data sample collected in 2??fb[superscript -1] of pp? collisions at ?s=1.96??TeV with the CDF ...

  17. Voice of the Sea Wins Six Telly Awards Voice of the Sea television series, a signature project of the University of Hawai`i Sea Grant Center

    E-Print Network [OSTI]

    Voice of the Sea Wins Six Telly Awards Voice of the Sea television series, a signature project Awards, which are the premier regional television awards honoring excellence in programming. Voice." Voice of the Sea won a silver Telly, the most prestigious award, for Cultural Programming. Voice

  18. Spectroscopic Signatures of Halogens in Clathrate Hydrate Cages. 1. Bromine Galina Kerenskaya,* Ilya U. Goldschleger, V. Ara Apkarian, and Kenneth C. Janda

    E-Print Network [OSTI]

    Apkarian, V. Ara

    , the earliest gas clathrate hydrate discovered, was first prepared by Davy in 1811;1 bromine hydrateSpectroscopic Signatures of Halogens in Clathrate Hydrate Cages. 1. Bromine Galina Kerenskaya report the first UV-vis spectroscopic study of bromine molecules confined in clathrate hydrate cages

  19. Supervisor's Name ___________________________________ Employee's name _________________________________ Signature ___________________________________________ Signature ________________________________________

    E-Print Network [OSTI]

    Wilcock, William

    or system being worked on: Process being evaluated: M Lockout/tagout (Go to Lockout/Tagout below) M Tagout only (Go to Tagout below) M Energized work (Go to Energized Work below) A. Lockout/Tagout A1. Yes M of written lockout procedure if required. (See details on other side.) A7. Yes M No M Did the employee

  20. On the fragility of nuclear stellar discs against galaxy mergers: surviving photometric and kinematic signatures of nuclear discs

    E-Print Network [OSTI]

    Sarzi, M; Dotti, M

    2015-01-01T23:59:59.000Z

    Nuclear stellar discs (NSDs) can help to constrain the assembly history of their host galaxies, as long as we can assume them to be fragile structures that are disrupted during merger events. In this work we investigate the fragility of NSDs by means of N-body simulations reproducing the last phases of a galaxy encounter, when the nuclear regions of the two galaxies merge. For this, we exposed a NSD set in the gravitational potential of the bulge and supermassive black hole of a primary galaxy to the impact of the supermassive black hole from a secondary galaxy. We explored merger events of different mass ratios, from major mergers with a 1:1 mass ratio to intermediate and minor interactions with 1:5 and 1:10 ratios, while considering various impact geometries. We analyse the end results of such mergers from different viewing angles and looked for possible photometric and kinematic signatures of the presence of a disc in the remnant surface density and velocity maps, while adopting detection limits from real ...

  1. Micron-scale D/H heterogeneity in chondrite matrices: a signature of the pristine solar system water?

    E-Print Network [OSTI]

    Piani, Laurette; Remusat, Laurent

    2015-01-01T23:59:59.000Z

    Organic matter and hydrous silicates are intimately mixed in the matrix of chondrites and in-situ determination of their individual D/H ratios is therefore challenging. Nevertheless, the D/H ratio of each pure component in this mixture should yield a comprehensible signature of the origin and evolution of water and organic matter in our solar system. We measured hydrogen isotope ratios of organic and hydrous silicates in the matrices of two carbonaceous chondrites (Orgueil CI1 and Renazzo CR2) and one unequilibrated ordinary chondrite (Semarkona, LL3.0). A novel protocol was adopted, involving NanoSIMS imaging of H isotopes of monoatomatic ($H^-$) and molecular ($OH^-$) secondary ions collected at the same location. This allowed the most enriched component with respect to D to be identified in the mixture. Using this protocol, we found that in carbonaceous chondrites the isotopically homogeneous hydrous silicates are mixed with D-rich organic matter. The opposite was observed in Semarkona. Hydrous silicates i...

  2. A ROBUST ABSOLUTE DETECTION EFFICIENCY CALIBRATION METHOD UTILIZING BETA/GAMMA COINCIDENCE SIGNATURES AND ISOTOPICALLY PURIFIED NEUTRON ACTIVATED RADIOXENON ISOTOPES

    SciTech Connect (OSTI)

    McIntyre, Justin I.; Cooper, Matthew W.; Ely, James H.; Haas, Derek A.; Schrom, Brian T.

    2012-09-21T23:59:59.000Z

    Efforts to calibrate the absolute efficiency of gas cell radiations detectors have utilized a number of methodologies which allow adequate calibration but are time consuming and prone to a host of difficult-to-determine uncertainties. A method that extrapolates the total source strength from the measured beta and gamma gated beta coincidence signal was developed in the 1960s and 1970s. It has become clear that it is possible to achieve more consistent results across a range of isotopes and a range of activities using this method. Even more compelling is the ease with which this process can be used on routine samples to determine the total activity present in the detector. Additionally, recent advances in the generation of isotopically pure radioxenon samples of Xe-131m, Xe-133, and Xe-135 have allowed these measurement techniques to achieve much better results than would have been possible before when using mixed isotopic radioxenon source. This paper will discuss the beta/gamma absolute detection efficiency technique that utilizes several of the beta-gamma decay signatures to more precisely determine the beta and gamma efficiencies. It will than compare these results with other methods using pure sources of Xe-133, Xe-131m, and Xe-135 and a Xe-133/Xe-133m mix.

  3. Microlensing Event MOA-2007-BLG-400: Exhuming the Buried Signature of a Cool, Jovian-Mass Planet

    E-Print Network [OSTI]

    Dong, Subo; Gould, A; Kozlowski, Szymon; Miyake, N; Gaudi, B S; Bennett, D P; Abe, F; Gilmore, A C; Fukui, A; Furusawa, K; Hearnshaw, J B; Itow, Y; Kamiya, K; Kilmartin, P M; Korpela, A; Lin, W; Ling, C H; Masuda, K; Matsubara, Y; Muraki, Y; Nagaya, M; Ohnishi, K; Okumura, T; Perrott, Y C; Rattenbury, N; Saito, To; Sako, T; Sato, S; Skuljan, L; Sullivan, D J; Sumi, T; Sweatman, W; Tristram, P J; Yock, P C M; Bolt, G; Christie, G W; De Poy, D L; Han, C; Janczak, J; Lee, C -U; Mallia, F; McCormick, J; Monard, B; Maury, A; Natusch, T; Park, B -G; Pogge, R W; Santallo, R; Stanek, K Z; Udalski, A; Kubiak, M; Szymanski, M K; Pietrzynski, G; Soszynski, I; Szewczyk, O; Wyrzykowski, L; Ulaczyk, K

    2008-01-01T23:59:59.000Z

    We report the detection of the cool, Jovian-mass planet MOA-2007-BLG-400Lb. The planet was detected in a high-magnification microlensing event (with peak magnification A_max = 628) in which the primary lens transited the source, resulting in a dramatic smoothing of the peak of the event. The angular extent of the region of perturbation due to the planet is significantly smaller than the angular size of the source, and as a result the planetary signature is also smoothed out by the finite source size. Thus the deviation from a single-lens fit is broad and relatively weak (~ few percent). Nevertheless, we demonstrate that the planetary nature of the deviation can be unambiguously ascertained from the gross features of the residuals, and detailed analysis yields a fairly precise planet/star mass ratio of q = 0.0026+/-0.0004, in accord with the large significance (\\Delta\\chi^2=1070) of the detection. The planet/star projected separation is subject to a strong close/wide degeneracy, leading to two indistinguishabl...

  4. Preliminary Evaluation of the Field and Laboratory Emission Cell (FLEC) for Sampling Attribution Signatures from Building Materials

    SciTech Connect (OSTI)

    Harvey, Scott D.; He, Lijian; Wahl, Jon H.

    2012-08-30T23:59:59.000Z

    This study provides a preliminary evaluation of the Field and Laboratory Emission Cell (FLEC) for its suitability for sampling building materials for toxic compounds and their associated impurities and residues that might remain after a terrorist chemical attack. Chemical warfare (CW) agents and toxic industrial chemicals were represented by a range of test probes that included CW surrogates. The test probes encompassed the acid-base properties, volatilities, and polarities of the expected chemical agents and residual compounds. Results indicated that dissipation of the test probes depended heavily on the underlying material. Near complete dissipation of almost all test probes occurred from galvanized stainless steel within 3.0 hrs, whereas far stronger retention with concomitant slower release was observed for vinyl composition floor tiles. The test probes displayed immediated permanence on Teflon. FLEC sampling was further evaluated by profiling residues remaining after the evaporation of 2-chloroethyl ethyl sulfide, a sulfur mustard simulant. This study lays the groundwork for the eventual goal of applying this sampling approach for collection of forensic attribution signatures that remain after a terrorist chemical attack.

  5. VOLUME 77, NUMBER 16 P H Y S I C A L R E V I E W L E T T E R S 14 OCTOBER 1996 Femtosecond Spectroscopic Signatures of Electronic Correlations in Conjugated Polyenes and

    E-Print Network [OSTI]

    Mukamel, Shaul

    and Engineering, University of Rochester, Rochester, New York 14627 (Received 25 March 1996) Electronic Spectroscopic Signatures of Electronic Correlations in Conjugated Polyenes and Semiconductor Nanostructures T the electronic-oscillator representation of conjugated polyenes. Comparison with inorganic semiconductors is made

  6. Microlensing Event MOA-2007-BLG-400: Exhuming the Buried Signature of a Cool, Jovian-Mass Planet

    E-Print Network [OSTI]

    Subo Dong; I. A. Bond; A. Gould; Szymon Kozlowski; N. Miyake; B. S. Gaudi; D. P. Bennett; F. Abe; A. C. Gilmore; A. Fukui; K. Furusawa; J. B. Hearnshaw; Y. Itow; K. Kamiya; P. M. Kilmartin; A. Korpela; W. Lin; C. H. Ling; K. Masuda; Y. Matsubara; Y. Muraki; M. Nagaya; K. Ohnishi; T. Okumura; Y. C. Perrott; N. Rattenbury; To. Saito; T. Sako; S. Sato; L. Skuljan; D. J. Sullivan; T. Sumi; W. Sweatman; P. J. Tristram; P. C. M. Yock; G. Bolt; G. W. Christie; D. L. DePoy; C. Han; J. Janczak; C. -U. Lee; F. Mallia; J. McCormick; B. Monard; A. Maury; T. Natusch; B. -G. Park; R. W. Pogge; R. Santallo; K. Z. Stanek; A. Udalski; M. Kubiak; M. K. Szymanski; G. Pietrzynski; I. Soszynski; O. Szewczyk; L. Wyrzykowski; K. Ulaczyk

    2008-09-18T23:59:59.000Z

    We report the detection of the cool, Jovian-mass planet MOA-2007-BLG-400Lb. The planet was detected in a high-magnification microlensing event (with peak magnification A_max = 628) in which the primary lens transited the source, resulting in a dramatic smoothing of the peak of the event. The angular extent of the region of perturbation due to the planet is significantly smaller than the angular size of the source, and as a result the planetary signature is also smoothed out by the finite source size. Thus the deviation from a single-lens fit is broad and relatively weak (~ few percent). Nevertheless, we demonstrate that the planetary nature of the deviation can be unambiguously ascertained from the gross features of the residuals, and detailed analysis yields a fairly precise planet/star mass ratio of q = 0.0026+/-0.0004, in accord with the large significance (\\Delta\\chi^2=1070) of the detection. The planet/star projected separation is subject to a strong close/wide degeneracy, leading to two indistinguishable solutions that differ in separation by a factor of ~8.5. Upper limits on flux from the lens constrain its mass to be M < 0.75 M_Sun (assuming it is a main-sequence star). A Bayesian analysis that includes all available observational constraints indicates a primary in the Galactic bulge with a mass of ~0.2-0.5 M_Sun and thus a planet mass of ~ 0.5-1.3 M_Jupiter. The separation and equilibrium temperature are ~0.6-1.1AU (~5.3-9.7AU) and ~103K (~34K) for the close (wide) solution. If the primary is a main-sequence star, follow-up observations would enable the detection of its light and so a measurement of its mass and distance.

  7. Search for Excited or Exotic Electron Production Using the Dielectron + Photon Signature at CDF in Run II

    SciTech Connect (OSTI)

    Gerberich, Heather Kay; /Duke U.

    2004-07-01T23:59:59.000Z

    The author presents a search for excited or exotic electrons decaying to an electron and a photon with high transverse momentum. An oppositely charged electron is produced in association with the excited electron, yielding a final state dielectron + photon signature. The discovery of excited electrons would be a first indication of lepton compositeness. They use {approx} 202 pb{sup -1} of data collected in p{bar p} collisions at {radical}s = 1.96 TeV with the Collider Detector at Fermilab during March 2001 through September 2003. The data are consistent with standard model expectations. Upper limits are set on the experimental cross-section {sigma}({bar p}p {yields} ee* {yields} ee{gamma}) at the 95% confidence level in a contact-interaction model and a gauge-mediated interaction model. Limits are also presented as exclusion regions in the parameter space of the excited electron mass (M{sub e*}) and the compositeness energy scale ({Lambda}). In the contact-interaction model, for which there are no previously published limits, they find M{sub e*} < 906 GeV is excluded for M{sub e*} = {Lambda}. In the gauge-mediated model, the exclusion region in the M{sub e*} versus the phenomenological coupling f/{Lambda} parameter space is extended to M{sub e*} < 430 GeV for f/{Lambda} {approx} 10{sup -2} GeV{sup -1}. In comparison, other experiments have excluded M{sub e*} < 280 GeV for f/{Lambda} {approx} 10{sup -2} GeV{sup -1}.

  8. Supernovae with two peaks in the optical light curve and the signature of progenitors with low-mass extended envelopes

    SciTech Connect (OSTI)

    Nakar, Ehud [Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978 (Israel); Piro, Anthony L. [Theoretical Astrophysics, California Institute of Technology, 1200 East California Boulevard, M/C 350-17, Pasadena, CA 91125 (United States)

    2014-06-20T23:59:59.000Z

    Early observations of supernova light curves are powerful tools for shedding light on the pre-explosion structures of their progenitors and their mass-loss histories just prior to explosion. Some core-collapse supernovae that are detected during the first days after the explosion prominently show two peaks in the optical bands, including the R and I bands, where the first peak appears to be powered by the cooling of shocked surface material and the second peak is clearly powered by radioactive decay. Such light curves have been explored in detail theoretically for SN 1993J and 2011dh, where it was found that they may be explained by progenitors with extended, low-mass envelopes. Here, we generalize these results. We first explore whether any double-peaked light curve of this type can be generated by a progenitor with a 'standard' density profile, such as a red supergiant or a Wolf-Rayet star. We show that a standard progenitor (1) cannot produce a double-peaked light curve in the R and I bands and (2) cannot exhibit a fast drop in the bolometric luminosity as is seen after the first peak. We then explore the signature of a progenitor with a compact core surrounded by extended, low-mass material. This may be a hydrostatic low-mass envelope or material ejected just prior to the explosion. We show that it naturally produces both of these features. We use this result to provide simple formulae to estimate (1) the mass of the extended material from the time of the first peak, (2) the extended material radius from the luminosity of the first peak, and (3) an upper limit on the core radius from the luminosity minimum between the two peaks.

  9. EFFECT OF COMBUSTOR INLET GEOMETRY ON ACOUSTIC SIGNATURE AND FLOW FIELD BEHAVIOUR OF THE LOW SWIRL INJECTOR

    SciTech Connect (OSTI)

    Therkelsen, Peter L.; Littlejohn, David; Cheng, Robert K.; Portillo, J. Enrique; Martin, Scott M.

    2009-11-30T23:59:59.000Z

    Low Swirl Injector (LSI) technology is a lean premixed combustion method that is being developed for fuel-flexible gas turbines. The objective of this study is to characterize the fuel effects and influences of combustor geometry on the LSI's overall acoustic signatures and flowfields. The experiments consist of 24 flames at atmospheric condition with bulk flows ranging between 10 and 18 m/s. The flames burn CH{sub 4} (at {phi} = 0.6 & 0.7) and a blend of 90% H{sub 2} - 10% CH{sub 4} by volume (at {phi} = 0.35 & 0.4). Two combustor configurations are used, consisting of a cylindrical chamber with and without a divergent quarl at the dump plane. The data consist of pressure spectral distributions at five positions within the system and 2D flowfield information measured by Particle Imaging Velocimetry (PIV). The results show that acoustic oscillations increase with U{sub 0} and {phi}. However, the levels in the 90% H{sub 2} flames are significantly higher than in the CH{sub 4} flames. For both fuels, the use of the quarl reduces the fluctuating pressures in the combustion chamber by up to a factor of 7. The PIV results suggest this to be a consequence of the quarl restricting the formation of large vortices in the outer shear layer. A Generalized Instability Model (GIM) was applied to analyze the acoustic response of baseline flames for each of the two fuels. The measured frequencies and the stability trends for these two cases are predicted and the triggered acoustic mode shapes identified.

  10. A comparison of surface topography characterization technologies for use in comparing spent bullet and cartridge case signatures

    SciTech Connect (OSTI)

    Batishko, C.R.; Hickman, B.J.; Cuta, F.M.

    1992-11-01T23:59:59.000Z

    The Pacific Northwest Laboratory was tasked by the US Department of Energy to provide technical assistance to the Federal Bureau of Investigation in evaluating and ranking technologies potentially useful in high-speed comparison of unique spent bullet and cartridge case surface signatures. Information sources included vendor input, current relevant literature, vendor phone contacts, other FBI resources, relevant PNL reports, and personal contact with numerous PNL technical staff. A comprehensive list of technologies was reduced to a list of 38 by grouping very similar methodologies, and further reduced to a short list of six by applying a set of five minimum functional requirements. A total of 14 primary criteria, many having secondary criteria, were subsequently used to evaluate each technology. The ranked short list results are reported and supported in this document, and their scores normalized to a hypothetical ideal system are as follows: (1) confocal microscopy 82.13; (2) laser dynamic focusing 72.04; (3)moire interferometry V70.94; (4)fringe field capacitance;(5)laser triangulation 66.18; (6)structured/sectioned light 65.55. Information available within the time/budget constraints which was used for the evaluation and ranking was not sufficiently detailed to evaluate specific implementations of the technologies. Each of the technologies in the short list was judged potentially capable of meeting the minimum requirements. Clever, novel engineering solutions resulting in a more cost-effective system, or a closer fit to the ideal system,'' could result in a reordering of the short list when actual technical proposals are evaluated. Therefore, it is recommended that a Request for Proposal not be limited to only the highest ranked technology, but include all six technologies in the short list.

  11. A comparison of surface topography characterization technologies for use in comparing spent bullet and cartridge case signatures

    SciTech Connect (OSTI)

    Batishko, C.R.; Hickman, B.J.; Cuta, F.M.

    1992-11-01T23:59:59.000Z

    The Pacific Northwest Laboratory was tasked by the US Department of Energy to provide technical assistance to the Federal Bureau of Investigation in evaluating and ranking technologies potentially useful in high-speed comparison of unique spent bullet and cartridge case surface signatures. Information sources included vendor input, current relevant literature, vendor phone contacts, other FBI resources, relevant PNL reports, and personal contact with numerous PNL technical staff. A comprehensive list of technologies was reduced to a list of 38 by grouping very similar methodologies, and further reduced to a short list of six by applying a set of five minimum functional requirements. A total of 14 primary criteria, many having secondary criteria, were subsequently used to evaluate each technology. The ranked short list results are reported and supported in this document, and their scores normalized to a hypothetical ideal system are as follows: (1) confocal microscopy 82.13; (2) laser dynamic focusing 72.04; (3)moire interferometry V70.94; (4)fringe field capacitance;(5)laser triangulation 66.18; (6)structured/sectioned light 65.55. Information available within the time/budget constraints which was used for the evaluation and ranking was not sufficiently detailed to evaluate specific implementations of the technologies. Each of the technologies in the short list was judged potentially capable of meeting the minimum requirements. Clever, novel engineering solutions resulting in a more cost-effective system, or a closer fit to the ``ideal system,`` could result in a reordering of the short list when actual technical proposals are evaluated. Therefore, it is recommended that a Request for Proposal not be limited to only the highest ranked technology, but include all six technologies in the short list.

  12. Urban narrative and reinvention in Hicks-Logan-Sawyer : creating an effective gateway to a vital New Bedford

    E-Print Network [OSTI]

    Koretz, Noah B. (Noah Benjamin)

    2013-01-01T23:59:59.000Z

    New Bedford, Massachusetts famously experienced two major waves of prosperity, as the worldwide capital of the whaling industry in the early 19th century, and then as a major textile production century decades later. It ...

  13. Electricity Production from Steam-Exploded Corn Stover Biomass Yi Zuo, Pin-Ching Maness, and Bruce E. Logan*,

    E-Print Network [OSTI]

    ,5 but most of the chemical oxygen demand (COD) remains as fermentation end products consisting primarily of acetic and butyric acids.6 Microbial fuel cells (MFCs) represent a new method for energy

  14. Phosphate recovery as struvite within a single chamber microbial electrolysis cell Roland D. Cusick, Bruce E. Logan

    E-Print Network [OSTI]

    , The Pennsylvania State University, University Park, PA 16802, USA a r t i c l e i n f o Article history: Received on applied voltage and cathode material. Overall energy efficiencies (substrate and electricity) were high phosphate rock to increase crop yields. Extensive mining of phosphorus to meet global demands has led

  15. Analysis of polarization methods for elimination of power overshoot in microbial Valerie J. Watson, Bruce E. Logan

    E-Print Network [OSTI]

    of the power density curve, producing lower power than previously measured for the lower current densities [7Analysis of polarization methods for elimination of power overshoot in microbial fuel cells Valerie 2010 Keywords: Microbial fuel cell Power overshoot Polarization Polarization curves from microbial fuel

  16. A NEW RAPID METHOD TO ASSESS OXYGEN DEMAND BASED ON THE HBOD Bruce E. Logan, David Kohler, and Booki Min

    E-Print Network [OSTI]

    , but that sample analysis takes only minutes. Field tests conducted at two local wastewater treatment plants show oxygen, HBOD, oxygen demand, oxygen probe, respirometers, wastewater treatment INTRODUCTION The original of the need to dilute the wastewater for a BOD test, for example, the degradation rate of biological organic

  17. Measured Performance Signature Method

    E-Print Network [OSTI]

    Ahner, D. J.

    their corrected outputs given their measured inputs, outputs and the sensitivity relations of equation 9). For example, the gas turbine flow and exhaust temperatures are input variables to the respective HRSG in addition to stearn pressures and inlet... feedwater temperatures which are HRSG independent variables, as shown in Figure 2. In sliding pressure operation, there is an iterative calculation with the steam turbine due to the effect of pressure on HRSG steam generation and stearn ~Is...

  18. Signature ESO-CERN

    ScienceCinema (OSTI)

    None

    2011-04-25T23:59:59.000Z

    Le Prof.Gregory parle du commencement de la collaboration entre directoires et gens de l'organisation; d'autres personnalits prennent la parole

  19. Application Power Signature Analysis

    SciTech Connect (OSTI)

    Hsu, Chung-Hsing [ORNL] [ORNL; Combs, Jacob [Sonoma State University] [Sonoma State University; Nazor, Jolie [Sonoma State University] [Sonoma State University; Santiago, Fabian [Sonoma State University] [Sonoma State University; Thysell, Rachelle [Sonoma State University] [Sonoma State University; Rivoire, Suzanne [Sonoma State University] [Sonoma State University; Poole, Stephen W [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    The high-performance computing (HPC) community has been greatly concerned about energy efficiency. To address this concern, it is essential to understand and characterize the electrical loads of HPC applications. In this work, we study whether HPC applications can be distinguished by their power-consumption patterns using quantitative measures in an automatic manner. Using a collection of 88 power traces from 4 different systems, we find that basic statistical measures do a surprisingly good job of summarizing applications' distinctive power behavior. Moreover, this study opens up a new area of research in power-aware HPC that has a multitude of potential applications.

  20. Science of Signatures Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebook Twitter Principalfuel cells"03, 2008 »Science of

  1. Original Signature on File

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)IntegratedSpeeding access toTest andOptimize carbon AboutOrganizing| Original

  2. Signature on File

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9 SeptemberSettingUncertainties ElitzaSignon File

  3. Original Signature On File

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomass and Biofuels Biomass and Organizational HistoryOriel

  4. Original Signatures on File

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomass and Biofuels Biomass and Organizational

  5. Investigating the potential for long-term permeable reactive barrier (PRB) monitoring from the electrical signatures associated with the reduction in reactive iron performance

    SciTech Connect (OSTI)

    Slater, Lee; Choi, Jaeyoung

    2003-06-01T23:59:59.000Z

    The ultimate objective of this project is to quantify the ability of the electrical induced polarization (IP) method to non-invasively monitor the reduction in reactive iron performance that is known to reduce the effectiveness of the permeable reactive barrier (PRB) with time. The primary scientific goals include: (1) fundamental laboratory studies to evaluate the sensitivity of the IP method to physical/chemical changes to the iron surface resulting from oxidation, precipitation and clogging (2) monitoring of the electrical tomographic response of an installed PRB over a three-year period and assessment, via correlation with aqueous geochemical data and extracted iron cores, of whether electrical signatures associated with reduced PRB performance are resolvable in field studies (3) optimization of a three-dimensional tomographic imaging algorithm for application to highly conductive, high electrical contrast environments as represented by a PRB IP theory and empirical data resulting from the original development of the method for mineral exploration suggests that the method is highly relevant in the study of reactive iron barriers. Laboratory and field IP studies on mineral deposits illustrate the sensitivity of IP parameters to metal concentration, particle size and metal surface chemistry. IP theory, based on electrical (Warburg) impedance associated with diffusive ion transfer to/from the electrolyte to electron exchange sites on the metal surface, provides a framework for interpreting IP signatures of PRBs as a function of redox chemistry.

  6. Investigating the Potential for Long-Term Permeable Reactive Barrier (PRB) Monitoring from the Electrical Signatures Associated with the Reduction in Reactive Iron Performance

    SciTech Connect (OSTI)

    Slater, Lee

    2003-06-01T23:59:59.000Z

    The objective of this project is to quantify the ability of the electrical induced polarization (IP) method to non-invasively monitor the reduction in reactive iron performance that is known to reduce the effectiveness of the permeable reactive barrier (PRB) with time. The primary scientific goals include: (1) fundamental laboratory studies to evaluate the sensitivity of the IP method to: Fe0 total surface area Fe0 surface chemistry physical/chemical changes to the Fe0 surface resulting from oxidation and precipitation (2) monitoring of the electrical tomographic response of the Kansas City PRB over a three-year period and assessment, via correlation with aqueous geochemical data and extracted iron cores, of whether electrical signatures associated with reduced PRB performance are resolvable in field studies (3) optimization of a three-dimensional tomographic imaging algorithm for application to highly conductive, high electrical contrast environments as represented by a PRB IP theory and empirical data resulting from the original development of the method for mineral exploration suggests that the method is highly relevant in the study of reactive iron barriers. Laboratory and field IP studies on mineral deposits illustrate the sensitivity of IP parameters to metal concentration, particle size and metal surface chemistry. IP theory, based on electrical (Warburg) impedance associated with diffusive ion transfer to/from the electrolyte to electron exchange sites on the metal surface, provides a framework for interpreting IP signatures of PRBs as a function of redox chemistry.

  7. Investigating the potential for long-term permeable reactive barrier (PRB) monitoring from the electrical signatures associated with the reduction in reactive iron performance

    SciTech Connect (OSTI)

    Slater, Lee

    2003-12-19T23:59:59.000Z

    The objective of this project is to quantify the ability of the electrical induced polarization (IP) method to noninvasively monitor the reduction in reactive iron performance that is known to reduce the effectiveness of the permeable reactive barrier (PRB) with time. The primary scientific goals include: (1) fundamental laboratory studies to evaluate the sensitivity of the IP method to: Fe0 total surface area Fe0 surface chemistry physical/chemical changes to the Fe0 surface resulting from oxidation and precipitation (2) monitoring of the electrical tomographic response of the Kansas City PRB over a three-year period and assessment, via correlation with aqueous geochemical data and extracted iron cores, of whether electrical signatures associated with reduced PRB performance are resolvable in field studies (3) optimization of a three-dimensional tomographic imaging algorithm for application to highly conductive, high electrical contrast environments as represented by a PRB IP theory and empirical data resulting from the original development of the method for mineral exploration suggests that the method is highly relevant in the study of reactive iron barriers. Laboratory and field IP studies on mineral deposits illustrate the sensitivity of IP parameters to metal concentration, particle size and metal surface chemistry. IP theory, based on electrical (Warburg) impedance associated with diffusive ion transfer to/from the electrolyte to electron exchange sites on the metal surface, provides a framework for interpreting IP signatures of PRBs as a function of redox chemistry.

  8. Gravitational wave signatures of the absence of an event horizon. II. Extreme mass ratio inspirals in the spacetime of a thin-shell gravastar

    SciTech Connect (OSTI)

    Pani, Paolo [Dipartimento di Fisica, Universita di Cagliari, and INFN sezione di Cagliari, Cittadella Universitaria 09042 Monserrato (Italy); Berti, Emanuele [Department of Physics and Astronomy, University of Mississippi, University, Mississippi 38677-1848 (United States); Theoretical Astrophysics 350-17, California Institute of Technology, Pasadena, California 91125 (United States); Cardoso, Vitor [Department of Physics and Astronomy, University of Mississippi, University, Mississippi 38677-1848 (United States); Centro Multidisciplinar de Astrofisica-CENTRA, Department de Fisica, Instituto Superior Tecnico, Av. Rovisco Pais 1, 1049-001 Lisboa (Portugal); Chen Yanbei; Norte, Richard [Theoretical Astrophysics 350-17, California Institute of Technology, Pasadena, California 91125 (United States)

    2010-04-15T23:59:59.000Z

    We study gravitational wave emission from the quasicircular, extreme mass ratio inspiral of compact objects of mass m{sub 0} into massive objects of mass M>>m{sub 0} whose external metric is identical to the Schwarzschild metric, except for the absence of an event horizon. To be specific we consider one of the simplest realizations of such an object: a nonrotating thin-shell gravastar. The power radiated in gravitational waves during the inspiral shows distinctive peaks corresponding to the excitation of the polar oscillation modes of the gravastar. For ultracompact gravastars the frequency of these peaks depends mildly on the gravastar compactness. For masses M{approx}10{sup 6}M{sub {center_dot}}the peaks typically lie within the optimal sensitivity bandwidth of the Laser Interferometer Space Antenna, potentially providing a unique signature of the horizonless nature of the central object. For relatively modest values of the gravastar compactness the radiated power has even more peculiar features, carrying the signature of the microscopic properties of the physical surface replacing the event horizon.

  9. High-precision acoustic helium signatures in 18 low-mass low-luminosity red giants. Analysis from more than four years of Kepler observations

    E-Print Network [OSTI]

    Corsaro, E; Garca, R A

    2015-01-01T23:59:59.000Z

    High-precision frequencies of acoustic modes in red giant stars are now available thanks to the long observing length and high-quality of the light curves provided by the NASA Kepler mission, thus allowing to probe the interior of evolved cool low-mass stars with unprecedented level of detail. We characterize the acoustic signature of the helium second ionization zone in a sample of 18 low-mass low-luminosity red giants by exploiting new mode frequency measurements derived from more than four years of Kepler observations. We analyze the second frequency differences of radial acoustic modes in all the stars of the sample by using the Bayesian code Diamonds. We find clear acoustic glitches due to the signature of helium second ionization in all the stars of the sample. We measure the acoustic depth and the characteristic width of the acoustic glitches with a precision level on average around $\\sim$2% and $\\sim$8%, respectively. We find good agreement with theoretical predictions and existing measurements from t...

  10. Investigating the potential for long-term permeable reactive barrier (PRB) monitoring from the electrical signatures associated with the reduction in reactive iron performance

    SciTech Connect (OSTI)

    Slater, Lee

    2004-06-15T23:59:59.000Z

    The objective of this project is to quantify the ability of the electrical induced polarization (IP) method to noninvasively monitor the reduction in reactive iron performance that is known to reduce the effectiveness of the permeable reactive barrier (PRB) with time. The primary scientific goals include: (A) fundamental laboratory studies to evaluate the sensitivity of the IP method to: Fe0 total surface area Fe0 surface chemistry physical/chemical changes to the Fe0 surface resulting from oxidation and precipitation; (B) monitoring of the electrical tomographic response of the Kansas City PRB over a three-year period and assessment, via correlation with aqueous geochemical data and extracted iron cores, of whether electrical signatures associated with reduced PRB performance are resolvable in field studies; (C) optimization of a three-dimensional tomographic imaging algorithm for application to highly conductive, high electrical contrast environments as represented by a PRB.

  11. PERSISTENT DOPPLER SHIFT OSCILLATIONS OBSERVED WITH HINODE/EIS IN THE SOLAR CORONA: SPECTROSCOPIC SIGNATURES OF ALFVENIC WAVES AND RECURRING UPFLOWS

    SciTech Connect (OSTI)

    Tian Hui; McIntosh, Scott W. [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307 (United States); Wang, Tongjiang; Ofman, Leon [Department of Physics, Catholic University of America, Washington, DC 20064 (United States); De Pontieu, Bart [Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover St., Org. ADBS, Bldg. 252, Palo Alto, CA 94304 (United States); Innes, Davina E.; Peter, Hardi, E-mail: htian@ucar.edu [Max Planck Institute for Solar System Research, 37191 Katlenburg-Lindau (Germany)

    2012-11-10T23:59:59.000Z

    Using data obtained by the EUV Imaging Spectrometer on board Hinode, we have performed a survey of obvious and persistent (without significant damping) Doppler shift oscillations in the corona. We have found mainly two types of oscillations from February to April in 2007. One type is found at loop footpoint regions, with a dominant period around 10 minutes. They are characterized by coherent behavior of all line parameters (line intensity, Doppler shift, line width, and profile asymmetry), and apparent blueshift and blueward asymmetry throughout almost the entire duration. Such oscillations are likely to be signatures of quasi-periodic upflows (small-scale jets, or coronal counterpart of type-II spicules), which may play an important role in the supply of mass and energy to the hot corona. The other type of oscillation is usually associated with the upper part of loops. They are most clearly seen in the Doppler shift of coronal lines with formation temperatures between one and two million degrees. The global wavelets of these oscillations usually peak sharply around a period in the range of three to six minutes. No obvious profile asymmetry is found and the variation of the line width is typically very small. The intensity variation is often less than 2%. These oscillations are more likely to be signatures of kink/Alfven waves rather than flows. In a few cases, there seems to be a {pi}/2 phase shift between the intensity and Doppler shift oscillations, which may suggest the presence of slow-mode standing waves according to wave theories. However, we demonstrate that such a phase shift could also be produced by loops moving into and out of a spatial pixel as a result of Alfvenic oscillations. In this scenario, the intensity oscillations associated with Alfvenic waves are caused by loop displacement rather than density change. These coronal waves may be used to investigate properties of the coronal plasma and magnetic field.

  12. Search for charginos nearly mass degenerate with the lightest neutralino based on a disappearing-track signature in pp collisions at ?s = 8 TeV with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search is presented for direct chargino production based on a disappearing-track signature using 20.3??fb[superscript ?1] of proton-proton collisions at s? = 8??TeV collected with the ATLAS experiment at the LHC. In ...

  13. Beta-decay of nuclei around Se-90. Search for signatures of a N=56 sub-shell closure relevant the r-process

    E-Print Network [OSTI]

    Quinn, M; Pereira, J; Surman, R; Arndt, O; Baumann, T; Becerril, A; Elliot, T; Estrade, A; Galaviz, D; Ginter, T; Hausmann, M; Hennrich, S; Kessler, R; Kratz, K -L; Lorusso, G; Mantica, P F; Matos, M; Moller, P; Montes, F; Pfeiffer, B; Portillo, M; Hennrich, S; Schatz, H; Schertz, F; Schnorrenberger, L; Smith, E; Stolz, A; Walters, W B; Wohr, A

    2011-01-01T23:59:59.000Z

    Nuclear structure plays a significant role on the rapid neutron capture process (r-process) since shapes evolve with the emergence of shells and sub-shells. There was some indication in neighboring nuclei that we might find examples of a new N=56 sub-shell, which may give rise to a doubly magic Se-90 nucleus. Beta-decay half lives of nuclei around Se-90 have been measured to determine if this nucleus has in fact a doubly-magic character. The fragmentation of Xe-136 beam at the National Superconducting Cyclotron Laboratory at Michigan State University was used to create a cocktail of nuclei in the A=90 region. We have measured the half lives of twenty-two nuclei near the r-process path in the A=90 region. The half lives of As-88 and Se-90 have been measured for the first time. The values were compared with theoretical predictions in the search for nuclear-deformation signatures of a N=56 sub-shell, and its possible role in the emergence of a potential doubly-magic Se-90. The impact of such hypothesis on the sy...

  14. The Spectral Signature of Dust Scattering and Polarization in the Near IR to Far UV. I. Optical Depth and Geometry Effects

    E-Print Network [OSTI]

    Victor G. Zubko; Ari Laor

    1999-09-21T23:59:59.000Z

    Spectropolarimetry from the near IR to the far UV of light scattered by dust provides a valuable diagnostic of the dust composition, grain size distribution and spatial distribution. To facilitate the use of this diagnostic, we present detailed calculations of the intensity and polarization spectral signature of light scattered by optically thin and optically thick dust in various geometries. The polarized light radiative transfer calculations are carried out using the adding-doubling method for a plane-parallel slab, and are extended to an optically thick sphere by integrating over its surface. The calculations are for the Mathis, Rumple & Nordsieck Galactic dust model, and cover the range from 1 $\\mu m$ to 500 \\AA. We find that the wavelength dependence of the scattered light intensity provides a sensitive probe of the optical depth of the scattering medium, while the polarization wavelength dependence provides a probe of the grain scattering properties, which is practically independent of optical depth. We provide a detailed set of predictions, including polarization maps, which can be used to probe the properties of dust through imaging spectropolarimetry in the near IR to far UV of various Galactic and extragalactic objects. In a following paper we use the codes developed here to provide predictions for the dependence of the intensity and polarization on grain size distribution and composition.

  15. Persistent Doppler shift oscillations observed with HINODE/EIS in the solar corona: spectroscopic signatures of Alfvenic waves and recurring upflows

    E-Print Network [OSTI]

    Tian, Hui; Wang, Tongjiang; Ofman, Leon; De Pontieu, Bart; Innes, Davina E; Peter, Hardi

    2012-01-01T23:59:59.000Z

    Using data obtained by the EUV Imaging Spectrometer (EIS) onboard Hinode, we have per- formed a survey of obvious and persistent (without significant damping) Doppler shift oscillations in the corona. We have found mainly two types of oscillations from February to April in 2007. One type is found at loop footpoint regions, with a dominant period around 10 minutes. They are characterized by coherent behavior of all line parameters (line intensity, Doppler shift, line width and profile asymmetry), apparent blue shift and blueward asymmetry throughout almost the en- tire duration. Such oscillations are likely to be signatures of quasi-periodic upflows (small-scale jets, or coronal counterpart of type-II spicules), which may play an important role in the supply of mass and energy to the hot corona. The other type of oscillation is usually associated with the upper part of loops. They are most clearly seen in the Doppler shift of coronal lines with forma- tion temperatures between one and two million degrees. The ...

  16. Original Signature On File Original Signature On File

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)IntegratedSpeeding access toTest andOptimize carbon AboutOrganizing|

  17. Signature of Christopher C. Gentile Signature of Christopher C. Gentile

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest|Scoping2BretC.

  18. 2015 Science of Signatures Program

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

    of 3D Melt Pool Characteristics to Enable Qualified-as-Built Parts During Additive Manufacturing Project Description In-situ Characterization of the 3D temperature,...

  19. Signature of nonexponential nuclear decay

    E-Print Network [OSTI]

    Ray, A; De, A

    2015-01-01T23:59:59.000Z

    Precision tests of decay law of radioactive nuclei have not so far found any deviation from the exponential decay law at early time, as predicted by quantum mechanics. In this paper, we show that the quantum decoherence time (i.e. the timescale of nonexponential decay) of the quasifission or fission process should be of the order of attosecond considering the atom of the fissioning nucleus as a quantum detector. Hence, the observed decay timescale of the quasifission or fission process of even highly excited (EX greater than 50 MeV) transuranium and uraniumlike complexes should be rather long (of the order of attosecond) in spite of their very fast exponential decay timescale (of the order of zeptosecond) as measured by the nuclear techniques. Recent controversy regarding the observation of very long (of the order of attosecond ) and very short (of the order of zeptosecond ) quasifission or fission timescales for similar systems at similar excitation energies as obtained by direct techniques (crystal blocking...

  20. Signature of nonexponential nuclear decay

    E-Print Network [OSTI]

    A Ray; A K Sikdar; A De

    2015-03-18T23:59:59.000Z

    Precision tests of decay law of radioactive nuclei have not so far found any deviation from the exponential decay law at early time, as predicted by quantum mechanics. In this paper, we show that the quantum decoherence time (i.e. the timescale of nonexponential decay) of the quasifission or fission process should be of the order of attosecond considering the atom of the fissioning nucleus as a quantum detector. Hence, the observed decay timescale of the quasifission or fission process of even highly excited (EX greater than 50 MeV) transuranium and uraniumlike complexes should be rather long (of the order of attosecond) in spite of their very fast exponential decay timescale (of the order of zeptosecond) as measured by the nuclear techniques. Recent controversy regarding the observation of very long (of the order of attosecond ) and very short (of the order of zeptosecond ) quasifission or fission timescales for similar systems at similar excitation energies as obtained by direct techniques (crystal blocking, X ray fission fragment) and nuclear techniques could be interpreted as evidence for nonexponential decays in nuclear systems

  1. r-Process Abundance Signatures

    E-Print Network [OSTI]

    J. J. Cowan; C. Sneden

    2002-12-05T23:59:59.000Z

    Abundance observations indicate the presence of rapid-neutron capture (i.e., r-process) elements in old Galactic halo and globular cluster stars. These observations demonstrate that the earliest generations of stars in the Galaxy, responsible for neutron-capture synthesis and the progenitors of the halo stars, were rapidly evolving. Abundance comparisons among large numbers of stars provide clues about the nature of neutron-capture element synthesis both during the earliest times and throughout the history of the Galaxy. In particular, these comparisons suggest differences in the way the heavier (including Ba and above) and lighter neutron capture elements are synthesized in nature. Understanding these differences will help to identify the astrophysical site (or sites) of and conditions in the r-process. The abundance comparisons also demonstrate a large star-to-star scatter in the neutron-capture/iron ratios at low metallicities- which disappears with increasing [Fe/H]- and suggests an early, chemically unmixed and inhomogeneous Galaxy. The very recent neutron-capture element observations indicate that the early phases of Galactic nucleosynthesis, and the associated chemical evolution, are quite complex, with the yields from different (progenitor) mass-range stars contributing to different chemical mixes. Stellar abundance comparisons suggest a change from the r-process to the slow neutron capture (i.e., s-) process at higher metallicities (and later times) in the Galaxy. Finally, the detection of thorium and uranium in halo and globular cluster stars offers a promising, independent age-dating technique that can put lower limits on the age of the Galaxy and thus the Universe.

  2. Tectonic signatures on active margins

    E-Print Network [OSTI]

    Hogarth, Leah Jolynn

    2010-01-01T23:59:59.000Z

    No. 33, pp. 2540. Tulsa, Oklahoma. Gardner, J.B. ,to hydrocarbon exploration: Tulsa, Oklahoma, Americanto hydrocarbon exploration: Tulsa, Oklahoma, American

  3. Tectonic signatures on active margins

    E-Print Network [OSTI]

    Hogarth, Leah Jolynn

    2010-01-01T23:59:59.000Z

    1977. Seismic stratigraphic interpretation of depositionallocation and seismic lines shown. (For interpretation of the

  4. Printed Name: PID: Signature Date

    E-Print Network [OSTI]

    Russell, Lynn

    use, return items to their proper storage spaces at the Student Affairs Office. Check Extension Cords Qty Foldable Tables (1-3) Qty Grill/Propane (1-2) Qty Popcorn Machine Picnic Blankets Qty

  5. Tectonic signatures on active margins

    E-Print Network [OSTI]

    Hogarth, Leah Jolynn

    2010-01-01T23:59:59.000Z

    during the last sea-level rise. The healing-phase unitduring the last sea-level rise. This chapter also examineserosion during the sea-level rise, and is mantled by a basal

  6. Tectonic signatures on active margins

    E-Print Network [OSTI]

    Hogarth, Leah Jolynn

    2010-01-01T23:59:59.000Z

    submarine canyons. Sedimentology 50 (4), 625637. McNinch,SEPM, Concepts in Sedimentology and Paleontology, vol. 7.aggradational phase. Sedimentology 54, 207-221. Swift, D. J.

  7. 2015 Science of Signatures Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruaryOctober 2, 2014Energy, Office ofScientificCAMD

  8. The Science of Signatures Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth'sConnect The Science Program atof

  9. 2015 Science of Signatures Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch >InternshipDepartment ofAugustDecember 2014 Fri,5July 2015of5Race to

  10. 2014 Science of Signatures Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruary

  11. Signature of Charles Spencer Signature of Charles Spencer Signature of Charles Spencer

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest|Scoping2Bret

  12. Signature of Christopher Gentile Signature of Mark Holecek Signature of Therese LeBlanc

    National Nuclear Security Administration (NNSA)

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

  13. Signature of Christopher Gentile Signature of Mark Holecek Signature of Therese LeBlanc

    National Nuclear Security Administration (NNSA)

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

  14. Temperature dependence of long wavelength semiconductor lasers J. O'Gorman, A. F. J. Levi, T. Tanbun-Ek, D. L. Coblentz, and R. A. Logan

    E-Print Network [OSTI]

    Levi, Anthony F. J.

    Temperature dependence of long wavelength semiconductor lasers J. O'Gorman, A. F. J. Levi, T (Received 11 November 1991; accepted for publication 16 December 1991) We compare the temperature dependent at a wavelength, /z = 1.3 ,um. No model in which Auger recombination is the dominant temperature sensitive

  15. Determination of lateral size distribution of type-II ZnTe/ZnSe stacked submonolayer quantum dots via spectral analysis of optical signature of the Aharanov-Bohm excitons

    SciTech Connect (OSTI)

    Ji, Haojie; Dhomkar, Siddharth; Roy, Bidisha; Kuskovsky, Igor L. [Department of Physics, Queens College of CUNY, Queens, New York 11367 (United States); The Graduate Center of CUNY, New York, New York 10016 (United States); Shuvayev, Vladimir [Department of Physics, Queens College of CUNY, Queens, New York 11367 (United States); Deligiannakis, Vasilios; Tamargo, Maria C. [The Graduate Center of CUNY, New York, New York 10016 (United States); Department of Chemistry, City College of CUNY, New York, New York 10031 (United States); Ludwig, Jonathan [National High Magnetic Field Laboratory, Tallahassee, Florida 32310 (United States); Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States); Smirnov, Dmitry [National High Magnetic Field Laboratory, Tallahassee, Florida 32310 (United States); Wang, Alice [Evans Analytical Group, Sunnyvale, California 94086 (United States)

    2014-10-28T23:59:59.000Z

    For submonolayer quantum dot (QD) based photonic devices, size and density of QDs are critical parameters, the probing of which requires indirect methods. We report the determination of lateral size distribution of type-II ZnTe/ZnSe stacked submonolayer QDs, based on spectral analysis of the optical signature of Aharanov-Bohm (AB) excitons, complemented by photoluminescence studies, secondary-ion mass spectroscopy, and numerical calculations. Numerical calculations are employed to determine the AB transition magnetic field as a function of the type-II QD radius. The study of four samples grown with different tellurium fluxes shows that the lateral size of QDs increases by just 50%, even though tellurium concentration increases 25-fold. Detailed spectral analysis of the emission of the AB exciton shows that the QD radii take on only certain values due to vertical correlation and the stacked nature of the QDs.

  16. We've found an error in our paper. In the threshold signature scheme that we used, there are restrictions on the threshold value. In particular if the key is shared over a degree t polynomial, then 2t+1 players (not t+1)

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    and will be updating the paper accordingly. Securing Bitcoin wallets via threshold signatures Steven Goldfeder stevenag@cs.princeton.edu Arvind Narayanan arvindn@cs.princeton.edu ABSTRACT The Bitcoin ecosystem has suffered frequent thefts serious. Due to the irre- versibility, automation, and pseudonymity of transactions, Bitcoin currently

  17. The Search for VH $\\bf\\to$ VWW Standard Model \\\\ Higgs Production in the Trilepton Signature\\\\ with $\\bf5.9\\fb$ of Data from $\\bf\\ppbar$ Collisions \\\\ at $\\bf\\sqrt{s}=1.96$ GeV

    SciTech Connect (OSTI)

    Nett, Jason Michael; /Wisconsin U., Madison

    2010-06-01T23:59:59.000Z

    We present here the search for Standard Model VH {yields} VWW {yields} lll + E{sub T} (missing energy due to neutrinos) production, where V is a W or Z weak vector boson, which uses up to 5.9 fb{sup -1} of integrated luminosity. This analysis has recently added to the CDF high-mass Higgs group three new signal topologies characterized by a tri-lepton signature, which are chosen to isolate the VH {yields} VWW associated production signals in the three-lepton signature. As such, we define three new regions for a WH analysis, a ZH 1-jet analysis, and a ZH {ge} 2-jet analysis with which we expect to contribute an additional {approx} 5.8% (for m{sub H} = 165 GeV) acceptance to the current H {yields} WW dilepton analysis. The ZH trilepton regions are defined by events passing a Z-boson selection: events having at least one lepton pairing (among three possible pairings) with opposite sign, same flavor, and a dilepton invariant mass within [76.0, 106.0] GeV - a {+-} 15 GeV window around the Z-boson mass. The WH trilepton region is then defined as the set of trilepton events that are complement to those chosen by the Z-boson selection. These three new event topologies make a substantial contribution to the H {yields} WW group result. As a measure of the sensitivity of this search, we compute the median expected limit on the at 95% confidence level ('C.L.') on the production cross section (effectively the rate of production) for a Standard Model Higgs boson and report the result as a ratio to the theoretical production cross section. An observed limit ratio of one or less at a given mass would rule out the production of a Standard Model Higgs boson at that mass with 95% confidence. At m{sub H} = 165 GeV, the WH analysis expected limits reach 7.2 times the standard model cross section; the ZH 1-jet analysis is set at 29 times the expected standard model cross section; the ZH {ge} 2-jet analysis is set at 9.9 times the expected standard model cross section; and the combined trilepton analysis is set at 4.9 times the expected standard model cross section. We announce that the combination of this trilepton VH {yields} VWW Higgs boson search and the previous CDF dilepton H {yields} WW search achieves an expected median limit of 1.00 at 165 GeV/c{sup 2}. The expected median limit of 1.00 indicates we anticipate a 50% probability of ruling out the existence of a Standard Model Higgs boson with a mass of 165 GeV/c{sup 2}. This is the first time a single hadron collider experiment has achieved sensitivity to the production of a Standard Model Higgs boson. We do not see evidence for a significant signal of Higgs bosons in the data and place observed limits on the production of a Standard Model Higgs boson of 165 GeV/c{sup 2} at 1.08 times Standard Model production cross section.

  18. Beam Compression in Heavy-Ion Induction Linacs

    E-Print Network [OSTI]

    Seidl, P.A.

    2009-01-01T23:59:59.000Z

    B.G. Logan 1 , P. Ni 1 , P.K. Roy 1 , K. Van den Bogert 1 ,B.G. Logan 1 , P. Ni 1 , P.K. Roy 1 , K. Van den Bogert 1 ,

  19. Direct Drive Heavy-Ion-Beam Inertial Fusion at High Coupling Efficiency

    E-Print Network [OSTI]

    Logan, B. Grant

    2008-01-01T23:59:59.000Z

    Fusion at High Coupling Efficiency B.G. Logan 1, L.J.fusion at high coupling efficiency B. G. Logan , L . J.Issues with coupling efficiency, beam illumination symmetry

  20. CX-005580: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Sidney to Sterling Transmission Line Structure Replacement, Logan County, ColoradoCX(s) Applied: B4.6Date: 12/22/2010Location(s): Logan County, ColoradoOffice(s): Western Area Power Administration-Rocky Mountain Region

  1. Fragmenting protostellar disks: properties and observational signatures

    E-Print Network [OSTI]

    Vorobyov, Eduard; Dunham, Michael

    2013-01-01T23:59:59.000Z

    Using numerical hydrodynamic simulations, we study the gravitational fragmentation of an unstable protostellar disc formed during the collapse of a pre-stellar core with a mass of 1.2 M_sun. The forming fragments span a mass range from about a Jupiter mass to very-low-mass protostars and are located at distances from a few tens to a thousand AU, with a dearth of objects at < 100 AU. We explore the possibility of observational detection of the fragments in discs viewed through the outflow cavity at a distance of 250 pc. We demonstrate that one hour of integration time with the Atacama Large Millimeter/sub-millimeter Array (ALMA) is sufficient to detect the fragments with masses as low as 1.5 M_Jup at orbital distances up to 800 AU from the protostar. The ALMA resolution sets the limit on the minimum orbital distance of detectable fragments. For the adopted resolution of our simulated ALMA images of 0.1", the fragments can be detected at distances down to 50 AU. At smaller distances, the fragments usually me...

  2. Infra-red signature neutron detector

    DOE Patents [OSTI]

    Bell, Zane William (Oak Ridge, TN) [Oak Ridge, TN; Boatner, Lynn Allen (Oak Ridge, TN) [Oak Ridge, TN

    2009-10-13T23:59:59.000Z

    A method of detecting an activator, the method including impinging with an activator a receptor material that includes a photoluminescent material that generates infrared radiation and generation a by-product of a nuclear reaction due to the activator impinging the receptor material. The method further includes generating light from the by-product via the Cherenkov effect, wherein the light activates the photoluminescent material so as to generate the infrared radiation. Identifying a characteristic of the activator based on the infrared radiation.

  3. Oxidation of carbynes: Signatures in infrared spectra

    SciTech Connect (OSTI)

    Cinquanta, E., E-mail: eugenio.cinquanta@mdm.imm.cnr.it, E-mail: p.rudolf@rug.nl [CIMAINA, University of Milan, Via Celoria 16, 20133 Milano (Italy); Department of Materials Science, University of Milan Bicocca, Via Cozzi 53, 20125 Milano (Italy); Manini, N.; Caramella, L.; Onida, G. [European Theoretical Spectroscopy Facility (ETSF), Via Celoria 16, 20133 Milano (Italy); Physics Department, University of Milan, Via Celoria 16, 20133 Milano (Italy); Ravagnan, L.; Milani, P. [CIMAINA, University of Milan, Via Celoria 16, 20133 Milano (Italy); Physics Department, University of Milan, Via Celoria 16, 20133 Milano (Italy); Rudolf, P., E-mail: eugenio.cinquanta@mdm.imm.cnr.it, E-mail: p.rudolf@rug.nl [Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747AG Groningen (Netherlands)

    2014-06-28T23:59:59.000Z

    We report and solidly interpret the infrared spectrum of both pristine and oxidized carbynes embedded in a pure-carbon matrix. The spectra probe separately the effects of oxidation on sp- and on sp{sup 2}-hybridized carbon, and provide information on the stability of the different structures in an oxidizing atmosphere. The final products are mostly short end-oxidized carbynes anchored with a double bond to sp{sup 2} fragments, plus an oxidized sp{sup 2} amorphous matrix. Our results have important implications for the realization of carbyne-based nano-electronics devices and highlight the active participation of carbynes in astrochemical reactions where they act as carbon source for the promotion of more complex organic species.

  4. Using Signature Analysis for Maintenance Planning

    E-Print Network [OSTI]

    Babson, P. E.

    1979-01-01T23:59:59.000Z

    -25, 1979 From this survey, which we hold to be a typical representation of rotating machinery applications, it was concluded that vibration monitoring programs can be designed to produce a significant amount of machinery condition information... type, history, and ongoing in-house monitoring practices, the data points and frequency of surveillance are established (normally 1 or 2-month cycles with variations, e.g. critical ~achinery could be surveyed each month and peripheral machinery on a...

  5. Detectable Signatures of Cosmic Radiative Feedback

    E-Print Network [OSTI]

    R. Schneider; R. Salvaterra; T. Roy Choudhury; A. Ferrara; C. Burigana; L. A. Popa

    2007-12-04T23:59:59.000Z

    We use a semi-analytical model to study the impact of reionization, and the associated radiative feedback, on galaxy formation. Two feedback models have been considered: (i) a standard prescription, according to which star formation is totally suppressed in galaxies with circular velocity below a critical threshold (model CF06) and (ii) a characterization based on the filtering scale (model G00), allowing for a gradual reduction of the gas available for star formation in low-mass galaxies. In model CF06 reionization starts at z ~ 15-20, is 85% complete by z ~ 10; at the same z, the ionized fraction is 16% in model G00. The models match SDSS constraints on the evolution of the neutral hydrogen fraction at z feedback models. Deviations among radiative feedback prescriptions emerge when considering the expected HI 21 cm background signal, where a ~ 15 mK absorption feature in the range 75-100 MHz is present in model G00 and a global shift of the emission feature preceding reionization towards larger frequencies occurs in the same model. Single dish observations with existing or forthcoming low-frequency radio telescopes can achieve mK sensitivity, allowing the identification of these features provided that foregrounds can be accurately subtracted.

  6. APPROVED BY: President Date Investigator (Signature) Date

    E-Print Network [OSTI]

    Fackler, John P.

    , 253-280, (2004). Hanan E. Abdou, Ahmed A. Mohamed, Jose M. Lopez-de-Luzuriaga, John P. Fackler, Jr Amidinate Complexes." J. Cluster Science, 15, 397-411, (2004). Jinhua Chen, Ahmed A. Mohamed, Hanan E. Abdou). Hanan E. Abdou, Ahmed A. Mohamed, John P. Fackler, Jr., "Synthesis and X-ray Structures of Dinuclear

  7. A SEISMIC SIGNATURE OF A SECOND DYNAMO?

    SciTech Connect (OSTI)

    Fletcher, Stephen T.; New, Roger [Faculty of Arts, Computing, Engineering and Sciences, Sheffield Hallam University, Sheffield S1 1WB (United Kingdom); Broomhall, Anne-Marie; Chaplin, William J.; Elsworth, Yvonne [School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Salabert, David [Instituto de Astrofisica de Canarias, E-38200 La Laguna, Tenerife (Spain); Basu, Sarbani [Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States); Garcia, Rafael A., E-mail: S.Fletcher@shu.ac.u, E-mail: R.New@shu.ac.u, E-mail: amb@bison.ph.bham.ac.u, E-mail: wjc@bison.ph.bham.ac.u, E-mail: ype@bison.ph.bham.ac.u, E-mail: salabert@iac.e, E-mail: sarbani.basu@yale.ed, E-mail: rafael.garcia@cea.f [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot, IRFU/SAp, Centre de Saclay, 91191 Gif-sur-Yvette (France)

    2010-07-20T23:59:59.000Z

    The Sun is a variable star whose magnetic activity varies most perceptibly on a timescale of approximately 11 years. However, significant variation is also observed on much shorter timescales. We observe a quasi-biennial (2 year) signal in the natural oscillation frequencies of the Sun. The oscillation frequencies are sensitive probes of the solar interior and so by studying them we can gain information about conditions beneath the solar surface. Our results strongly point to the 2 year signal being distinct and separate from, but nevertheless susceptible to the influence of, the main 11 year solar cycle.

  8. Signatures for Mass Spectrometry Data Quality. | EMSL

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

    that accounts for the tradeoff between false positive and false negative errors. The optimal logistic regression classifier models detected bad data sets with high sensitivity...

  9. Signatures of Planets in Spatially Unresolved Disks

    E-Print Network [OSTI]

    A. Moro-Martin; S. Wolf; R. Malhotra

    2005-06-27T23:59:59.000Z

    Main sequence stars are commonly surrounded by debris disks, composed of cold dust continuously replenished by a reservoir of undetected dust-producing planetesimals. In a planetary system with a belt of planetesimals (like the Solar System's Kuiper Belt) and one or more interior giant planets, the trapping of dust particles in the mean motion resonances with the planets can create structure in the dust disk, as the particles accumulate at certain semimajor axes. Sufficiently massive planets may also scatter and eject dust particles out of a planetary system, creating a dust depleted region inside the orbit of the planet. In anticipation of future observations of spatially unresolved debris disks with the Spitzer Space Telescope, we are interested in studying how the structure carved by planets affects the shape of the disk's spectral energy distribution (SED), and consequently if the SED can be used to infer the presence of planets. We numerically calculate the equilibrium spatial density distributions and SEDs of dust disks originated by a belt of planetesimals in the presence of interior giant planets in different planetary configurations, and for a representative sample of chemical compositions. The dynamical models are necessary to estimate the enhancement of particles near the mean motion resonances with the planets, and to determine how many particles drift inside the planet's orbit. Based on the SEDs and predicted $\\it{Spitzer}$ colors we discuss what types of planetary systems can be distinguishable from one another and the main parameter degeneracies in the model SEDs.

  10. DESCRIPTION OF ACCIDENT MSU DRIVERS SIGNATURE

    E-Print Network [OSTI]

    Dyer, Bill

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

  11. Signatures of Large Composite Dark Matter States

    E-Print Network [OSTI]

    Hardy, Edward; March-Russell, John; West, Stephen M

    2015-01-01T23:59:59.000Z

    We investigate the interactions of large composite dark matter (DM) states with the Standard Model (SM) sector. Elastic scattering with SM nuclei can be coherently enhanced by factors as large as A^2, where A is the number of constituents in the composite state (there exist models in which DM states of very large A > 10^8 may be realised). This enhancement, for a given direct detection event rate, weakens the expected signals at colliders by up to 1/A. Moreover, the spatially extended nature of the DM states leads to an additional, characteristic, form factor modifying the momentum dependence of scattering processes, altering the recoil energy spectra in direct detection experiments. In particular, energy recoil spectra with peaks and troughs are possible, and such features could be confirmed with only O(50) events, independently of the assumed halo velocity distribution. Large composite states also generically give rise to low-energy collective excitations potentially relevant to direct detection and indirec...

  12. (Original Signature of Member) 109TH CONGRESS

    E-Print Network [OSTI]

    . 404. Solar. Sec. 405. Bioenergy programs. Sec. 406. Wind. Sec. 407. Geothermal. Sec. 408. Photovoltaic Plant Program Sec. 531. Definitions. Sec. 532. Next generation nuclear power plant. Sec. 533. Advisory

  13. Investigation of Magnetic Signatures and Microstructures for...

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

    for nuclear reactors in order to ensure reactor safety and quantify material degradation (particularly embrittlement) prior to failure. Therefore, a prototypical ferritic...

  14. Cosmological Signatures of Anisotropic Spatial Curvature

    E-Print Network [OSTI]

    Pereira, Thiago S; Carneiro, Saulo

    2015-01-01T23:59:59.000Z

    If one is willing to give up the cherished hypothesis of spatial isotropy, many interesting cosmological models can be developed beyond the simple anisotropically expanding scenarios. One interesting possibility is presented by shear-free models in which the anisotropy emerges at the level of the curvature of the homogeneous spatial sections, whereas the expansion is dictated by a single scale factor. We show that such models represent viable alternatives to describe the large-scale structure of the inflationary universe, leading to a kinematically equivalent Sachs-Wolfe effect. Through the definition of a complete set of spatial eigenfunctions we compute the two-point correlation function of scalar perturbations in these models. In addition, we show how such scenarios would modify the spectrum of the CMB assuming that the observations take place in a small patch of a universe with anisotropic curvature.

  15. APPROVAL SIGNATURES DATE SIGNED DEPARTMENT CHAIR

    E-Print Network [OSTI]

    Olsen Jr., Dan R.

    vendors (ski passes, professional accreditation fees, licensing costs, liability insurance, ice skating rink fees, etc.). · Extraordinary Instructional Expenses: Fees may be justified to cover extraordinary

  16. Towards observable signatures of other bubble universes

    SciTech Connect (OSTI)

    Aguirre, Anthony; Johnson, Matthew C.; Shomer, Assaf [SCIPP, University of California, Santa Cruz, California 95064 (United States)

    2007-09-15T23:59:59.000Z

    We evaluate the possibility of observable effects arising from collisions between vacuum bubbles in a universe undergoing false-vacuum eternal inflation. Contrary to conventional wisdom, we find that under certain assumptions most positions inside a bubble should have access to a large number of collision events. We calculate the expected number and angular size distribution of such collisions on an observer's 'sky', finding that for typical observers the distribution is anisotropic and includes many bubbles, each of which will affect the majority of the observer's sky. After a qualitative discussion of the physics involved in collisions between arbitrary bubbles, we evaluate the implications of our results, and outline possible detectable effects. In an optimistic sense, then, the present paper constitutes a first step in an assessment of the possible effects of other bubble universes on the cosmic microwave background and other observables.

  17. (Original Signature of Member) 109TH CONGRESS

    E-Print Network [OSTI]

    Knowles, David William

    scientific understanding of new, energy-efficient mate- rials, as well as analyze the behavior of materials

  18. (Mentor Signature) Louisiana Tech College of

    E-Print Network [OSTI]

    Selmic, Sandra

    & Science Grand Challenge Scholars Program Grand Challenge Scholar Apprentice Annual Report for Academic: ___________________________________________________________ Expected Graduation: ___________________________________________________ GCSP Apprentice: Complete the next. ================================================================== GCSP Mentor: Complete this section and submit your Apprentice's Annual Report by May 1 to Dr. Katie

  19. On Security Notions for Verifiably Encrypted Signature

    E-Print Network [OSTI]

    1010 Leadership Laboratory IB .5 AEROS 1111 A AERO 1100 The Air Force Today 1 E AERO 1110 Aero Defense

  20. Reactor power history from fission product signatures

    E-Print Network [OSTI]

    Sweeney, David J.

    2009-05-15T23:59:59.000Z

    Shutdowns Separating the Burn Cycles and ,aR? = 1 b for Each Half-life of Radioactive Parent. ........................................................................................................ 114 xv Page Figure 60. Radioactive... Nuclide Concentration Ratio to Base Case of a Three Cycle Power History with Three Burn Cycles of Equal Length, a Constant Ps = 35 W/g for All Burn Cycles, and 20 days of Total Shutdown Time Divided Evenly Between Two Shutdowns Separating the Burn...

  1. Commercial Vehicle Classification using Vehicle Signature Data

    E-Print Network [OSTI]

    Liu, Hang; Jeng, Shin-Ting; Andre Tok, Yeow Chern; Ritchie, Stephen G.

    2008-01-01T23:59:59.000Z

    Traffic Measurement and Vehicle Classification with SingleG. Ritchie. Real-time Vehicle Classification using InductiveReijmers, J.J. , "On-line vehicle classification," Vehicular

  2. Institute of Geophysics, Planetary Physics, and Signatures

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

    and Labratory staff Providing Los Alamos National Laboratory programs with systematic infusion of new ideas, people, and contact with the larger university community Direct support...

  3. Manhattan Project Signature Facilities | Department of Energy

    Energy Savers [EERE]

    Trinity test. July 15, 1945. New Manhattan Project Interactive Website The Department of Energy, in the mid-1990s, developed a list of eight Manhattan Project properties that were...

  4. Signatures at Los Alamos National Laboratory

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

    Priedhorsky (SRO) Kirk Rector (C) Jack Shlachter (T) John Szymanski (PADGS) Antoinette Taylor (MPA) Thomas Terwilliger (INST-OFF) P. Scott White (B) Scott Wilburn (P) This document...

  5. Institute of Geophysics, Planetary Physics and Signatures

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

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

  6. Institute of Geophysics, Planetary Physics, and Signatures

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

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

  7. Manhattan Project Signature Facilities | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you wantJoin us for #SpaceWeek Join usProject » Manhattan

  8. Signatures at Los Alamos 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3 Outlook for Gulf ofMailing List Sign me

  9. Fermilab | Graphic Standards at Fermilab | Email signatures

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

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

  10. GFE Signature GFE signature is a multi-scale description of the

    E-Print Network [OSTI]

    Bhandarkar, Suchendra "Suchi" M.

    problem in computer graphics. Widely studied methods for this family of problems include the Gromov for corresponding points. Methodology The proposed method seeks to establish correspondence between surface features-invariant valuation of surface vertices, but this valuation must be generalized to achieve scale and rotation

  11. Signature of Bret E Knapp Signature of Kimberly Davis-Lebak

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest|Scoping2Bret E

  12. Signature of Charles F. McMillan Signature of Charles F. McMillan

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest|Scoping2Bret EF.

  13. Determining sand-body geometries for waterflood reservoirs: Examples from Oklahoma

    SciTech Connect (OSTI)

    Kreisa, R.D.; Pinero, E. (Mobil Research and Development Corp., Dallas, TX (USA))

    1987-02-01T23:59:59.000Z

    Waterflood projects require an accurate knowledge of reservoir geometry and well-to-well continuity. However, sandstones with thin, multiple-pay zones can be extremely difficult to correlate with confidence. Two case studies of Pennsylvanian sandstones in Oklahoma illustrate how a model for the depositional history of such reservoirs can be an effective tool for determining reservoir continuity. In contrast, correlation criteria such as similar wireline log signatures and relative sand-body thicknesses are not reliable in many situations. In Southwest Logan field (Beaver County), 5 to 15-ft thick reservoir sands formed as shallow marine sand ridges. Their dimensions were approximated from height-to-width ratios of modern sand ridges. Then the reservoir sands were mapped using wireline logs and core data. Individual reservoir sands were approximately 1-2 km wide and stacked en echelon vertically. Thus, a line-drive waterflood pattern oriented parallel to the axes of the ridges is recommended. Tatums field (Carter County) consists of 5 to 50-ft thick sandstones deposited in various deltaic environments. Distributary channel sands have good continuity downdip, but are narrow and lenticular across depositional strike. Crevasse splay and other bay-fill sands were deposited marginal to the channels and are extremely discontinuous. This depositional model can be used to improve flood patterns for these sands, leading to improved sweep efficiency. In both examples, for effective mapping, the depositional facies models have been used to register reservoir quality and wireline log signatures.

  14. Pennyrile RECC- Commercial Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    Pennyrile Rural Electric Cooperative serves 46,000 members in parts of nine Kentucky counties: Christian, Trigg, Logan, Todd, Muhlenberg, Lyon, Caldwell, Butler, and Simpson.

  15. advisory boards provide: Topics by E-print Network

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

    includes gradients, divergence, curl, Laplacian, integration by parts formulae and Greens identities. (2 Logan, David 360 Solar System Advisory Panel (SSAP) Developing the...

  16. allergenic products advisory: Topics by E-print Network

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

    includes gradients, divergence, curl, Laplacian, integration by parts formulae and Greens identities. (2 Logan, David 86 PIER Advisory Board November 10, 2010 Energy Storage,...

  17. anti-infective drugs advisory: Topics by E-print Network

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

    includes gradients, divergence, curl, Laplacian, integration by parts formulae and Greens identities. (2 Logan, David 59 PIER Advisory Board November 10, 2010 Energy Storage,...

  18. Perchlorate Degradation in Acetate-fed Bioreactors

    E-Print Network [OSTI]

    Perchlorate Degradation in Acetate-fed Bioreactors Yanguang Song Kijung Kim, Bruce Logan Department; Dechlorosoma sp. KJ: isolated from a perchlorate- degrading packed bed bioreactor; Dechlorosoma sp. PDX

  19. Stratospheric variability and tropospheric ozone

    E-Print Network [OSTI]

    Hsu, Juno; Prather, Michael J

    2009-01-01T23:59:59.000Z

    Global and zonal total ozone variations estimated fromon multidecadal total ozone simulations, J. Geophys. Res. ,and J. A. Logan (2007), Ozone climatolo- gical profiles for

  20. Tropospheric column ozone: matching individual profiles from Aura OMI and TES with a chemistry-transport model

    E-Print Network [OSTI]

    Tang, Q.; Prather, M. J

    2012-01-01T23:59:59.000Z

    Science Objectives of the Ozone Monitoring In- strument,G. J. , and Logan, J. A. : Ozone climatolog- ical profilestroposphere ex- change ozone flux related to deep

  1. Influence of reduced carbon emissions and oxidation on the distribution of atmospheric CO 2 : Implications for inversion analyses

    E-Print Network [OSTI]

    Suntharalingam, Parvadha; Randerson, James T; Krakauer, Nir; Logan, Jennifer A; Jacob, Daniel J

    2005-01-01T23:59:59.000Z

    C yr 1 CO total Fossil Biofuels Biomass burning CH 4 totalYevich and Logan [2003] (biofuels) and Duncan et al. [

  2. Microbial Fuel Cell Coupling: Clean, renewable energy generated from wastewater amongst other potential uses

    E-Print Network [OSTI]

    Reynolds, Mark

    2014-01-01T23:59:59.000Z

    5] Logan, Bruce. Microbial Fuel Cells: Methodology andin a flat plate microbial fuel cell. Environ. Sci. Technol.Korneel, et al. Microbial fuel cells: performances and

  3. Testing of optical diagnostics for ion-beam-driven WDM experiments at NDCX-1

    E-Print Network [OSTI]

    Ni, P.A.

    2008-01-01T23:59:59.000Z

    Logan, R. M. More, P. A. Ni, P. K. Roy, W. L. Waldron, P. A.to this conference. [4] P. K. Roy, P. A. Seidl, A. Anders,

  4. Environmental Information Sources: Websites and Books

    E-Print Network [OSTI]

    Shrode, Flora

    2010-01-01T23:59:59.000Z

    >, Utah State University Library, Logan, UT 84322-3000, USA.Shrode, Utah State University Library, USA This column listsby the Oregon State University Libraries "provides access to

  5. Climate controls on the variability of fires in the tropics and subtropics

    E-Print Network [OSTI]

    van der Werf, Guido R; Randerson, James T; Giglio, Louis; Gobron, Nadine; Dolman, A. J

    2008-01-01T23:59:59.000Z

    use and burning of agricultural waste in the developingand for the removal of agricultural waste [Yevich and Logan,resulted from pasture or agricultural waste burning in areas

  6. area northern territory: Topics by E-print Network

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

    LOGAN, C.A. 1987. Fluctuations in fall and winter territory Lougheed, Stephen 52 Evaluation of Land Surface Models in Reproducing Satellite Derived Leaf Area Index over the...

  7. automatic control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 38 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  8. automatic ph control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 40 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  9. automatic vessel control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 49 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  10. automatic exposure control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 44 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  11. automatic control rod: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 47 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  12. automatic control estrategias: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 38 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  13. automatic flow-through control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 43 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  14. automatic controllers: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 38 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  15. By-Products Utilization

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    ", Portland Cement Association Skokie, IL, pp. 1-10. 11. Burnham, J. C., Bennet, G. F., and Logan, T. J., 1990

  16. LBNL/PUB-5515 Ernest Orlando Lawrence

    E-Print Network [OSTI]

    LBNL/PUB-5515 Report on Ernest Orlando Lawrence Berkeley National Laboratory Laboratory Directed ............................................2 Grant Logan Jonathan Wurtele Wim Leemans Enabling High Energy Density Physics at LBNL

  17. alkali burn traumatic: Topics by E-print Network

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

    (TBI). The goal of the current study was to assess: Performance monitoring, traumatic brain injury, children, head injury, neuropsychology, pediatrics. Traumatic Logan, Gordon...

  18. Environmental Information Sources: WebSites and Books

    E-Print Network [OSTI]

    Shrode, Flora

    2011-01-01T23:59:59.000Z

    Cazier Library Logan, UT USA Electronic Green Journal, IssueGreen, Take Action: Books and Activities for Kids. Santa Barbara: Libraries

  19. Environmental Information Sources: Websites and Books

    E-Print Network [OSTI]

    Shrode, Flora

    2010-01-01T23:59:59.000Z

    and water birds. * Green Libraries Directory: http://Cazier Library, Logan, UT USA Electronic Green Journal,E. Himmel. How Green is My Library? Santa Barbara: Libraries

  20. Environmental Information Sources: Websites and Books

    E-Print Network [OSTI]

    Shrode, Flora

    2011-01-01T23:59:59.000Z

    potential consequences. Green Libraries Directory http://some form of green planning, focusing on libraries with LEEDCazier Library, Logan, UT USA. Electronic Green Journal,

  1. Recent Graduates

    E-Print Network [OSTI]

    Mattiuzzi, Elizabeth; Arata, Heather

    2014-01-01T23:59:59.000Z

    Revitalization in Bayview Hunters Point and West Oakland,Hub of the Bayview-Hunters Point District Logan HarrisStrategic Plan for Hunters Point Shipyard Arts District

  2. Warren RECC- Electric Water Heater Rebate

    Broader source: Energy.gov [DOE]

    Warren Rural Electric Cooperative Corporation (RECC) provides service to customers in the south-central Kentucky counties of Ohio, Butler, Grayson, Edmonson, Warren, Simpson, Logan and Barren. Upon...

  3. Signatures of the Late Time Core-Collapse Supernova Environment

    E-Print Network [OSTI]

    Roberts, Luke Forrest

    2012-01-01T23:59:59.000Z

    of gravito-acoustic wave energy that escapes the proto-WKB approximation, the wave energy transmitted through theincident and transmitted wave energy ?ux, respectively. When

  4. The spectroscopic signature of hot Jupiters in FU Orionis objects

    E-Print Network [OSTI]

    Cathie J. Clarke; Philip J. Armitage

    2003-07-04T23:59:59.000Z

    We show that if FU Orionis objects harbour hot Jupiters embedded in their discs, the resulting non-axisymmetric dissipation profile in the disc would be manifest as time-dependent distortions in the absorption line profiles of these objects. In order to affect the infrared line profiles, planets must lie within approximately 0.5 au of the central star, whereas only planets within 0.1 au would influence the optical line profiles. The timescale for modulation of the line profiles is relatively short (months) in each case, so that the effect could not have been discovered from published spectra (which combine data taken in different observing seasons). The detection of hot Jupiters in FU Orionis objects would be in line with the expectations of tidal migration theories (which predict a high incidence of close planets around young stars) and would also lend support to models which link the triggering of rapid rise FU Orionis events to the existence of a close massive planet.

  5. Electrical signature of magnetic domain-wall dynamics

    E-Print Network [OSTI]

    Liu, Y.; Tretiakov, O. A.; Abanov, Artem.

    2011-01-01T23:59:59.000Z

    Current-induced domain-wall dynamics is studied in a thin ferromagnetic nanowire. The domain-wall dynamics is described by simple equations with four parameters. We propose a procedure to unambiguously determine these parameters by all...

  6. Ultra high energy neutrinos: absorption, thermal effects and signatures

    SciTech Connect (OSTI)

    Lunardini, Cecilia; Sabancilar, Eray; Yang, Lili, E-mail: Cecilia.Lunardini@asu.edu, E-mail: Eray.Sabancilar@asu.edu, E-mail: lyang54@asu.edu [Physics Department, Arizona State University, Tempe, Arizona 85287 (United States)

    2013-08-01T23:59:59.000Z

    We study absorption of ultra high energy neutrinos by the cosmic neutrino background, with full inclusion of the effect of the thermal distribution of the background on the resonant annihilation channel. For a hierarchical neutrino mass spectrum (with at least one neutrino with mass below ? 10{sup ?2} eV), thermal effects are important for ultra high energy neutrino sources at z?>16. The neutrino transmission probability shows no more than two separate suppression dips since the two lightest mass eigenstates contribute as a single species when thermal effects are included. Results are applied to a number of models of ultra high energy neutrino emission. Suppression effects are strong for sources that extend beyond z ? 10, which can be realized for certain top down scenarios, such as superheavy dark matter decays, cosmic strings and cosmic necklaces. For these, a broad suppression valley should affect the neutrino spectrum at least in the energy interval 10{sup 12}?10{sup 13} GeV which therefore is disfavored for ultra high energy neutrino searches with only a mild dependence on the neutrino mass spectrum and hierarchy. The observation of absorption effects would indicate a population of sources beyond z ? 10, and favor top-down mechanisms; it would also be an interesting probe of the physics of the relic neutrino background in the unexplored redshift interval z ? 10100.

  7. Signatures of combinatorial regulation in intrinsic biological noise

    E-Print Network [OSTI]

    Dinner, Aaron

    scenarios (molecular analogs of AND and OR logic operations) in simulations that faithfully represent bacterial gene expression. Applications and extensions to other regulatory scenarios are discussed. gene expression | mathematical modeling | noise analysis inference | flow cytometry Transcription factors regulate

  8. Storm/substorm signatures in the outer belt

    SciTech Connect (OSTI)

    Korth, A.; Friedel, R.H.W.; Mouikis, C. [Max-Planck-Inst. fuer Aeronomie, Lindau (Germany); Fennell, J.F. [Aerospace Corp., El Segundo, CA (United States)

    1998-12-01T23:59:59.000Z

    The response of the ring current region is compared for periods of storm and substorm activity, with an attempt to isolate the contributions of both processes. The authors investigate CRRES particle data in an overview format that allows the display of long-term variations of the outer radiation belt. They compare the evolution of the ring current population to indicators of storm (Dst) and substorm (AE) activity and examine compositional changes. Substorm activity leads to the intensification of the ring current at higher L (L {approximately} 6) and lower ring current energies compared to storms (L {approximately} 4). The O{sup +}/H{sup +} ratio during substorms remains low, near 10%, but is much enhanced during storms (can exceed 100%). They conclude that repeated substorms with an AE {approximately} 900 nT lead to a {Delta}Dst of {approximately} 30 nT, but do not contribute to Dst during storm main phase as substorm injections do not form a symmetric ring current during such disturbed times.

  9. Imaging Reservoir Quality: Seismic Signatures of Geologic Processes

    SciTech Connect (OSTI)

    Department of Geophysics

    2008-06-30T23:59:59.000Z

    Lithofacies successions from diverse depositional environments show distinctive patterns in various rock-physics planes (velocity-porosity, velocity-density and porosity-clay). Four clear examples of decameter-scale lithofacies sequences are documented in this study: (1) Micocene fluvial deposits show an inverted-V pattern indicative of dispersed fabric, (2) a fining-upward sequence of mud-rich deep deposits shows a linear trend associated with laminated sand-clay mixtures, (3) sand-rich deposits show a pattern resulting from the scarcity of mixed lithofacies, and (4) a coarsening-upward sequence shows evidence of both dispersed and horizontally laminated mixed lithofacies, with predominating dispersed mixtures generated by bioturbation. It was observed that carbonate-cemented sandstones are extremely heterogeneous in the project deep-water study area. Those from the base of incisions are usually associated with lower shaliness, lower porosity and higher P-impedance, while from the top of flooding surfaces exhibit higher shaliness, higher porosity and lower P-impedance. One rock physics model that captures the observed impedance-porosity trend is the 'stiff-sand model'. For this model, the high-porosity end-member is unconsolidated sand whose initial porosity is a function of sorting and shaliness, while the low-porosity end-member is solid mineral. These two end points are joined with a Hashin-Shtrikman equation. A systematic variation of quartz:clay ratio from proximal to distal locations was observed in the study area even within a single facies. The quartz:clay ratio changes from [0.5:0.5] to [1:0] along the direction of flow, based on the trends of P-impedance vs. porosity as predicted by the rock model for uncemented sands. The results are in agreement with spill-and-fill sequence stratigraphic model in mini-basin setting. In addition, porosity at the distal location ({approx}25 % to 35%) is higher than the porosity at the proximal location ({approx}20 % to 23%). This trend is explained by a sequence stratigraphic model which predicts progressive increase in sorting by turbidity current along the flow, as well as, quantified by a rock model that heuristically accounts for sorting. The results can be applied to improve quantitative predication of sediment parameters from seismic impedance, away from well locations.

  10. 2D kinematic signatures of boxy/peanut bulges

    E-Print Network [OSTI]

    Iannuzzi, Francesca

    2015-01-01T23:59:59.000Z

    We study the imprints of boxy/peanut structures on the 2D line-of-sight kinematics of simulated disk galaxies. The models under study belong to a family with varying initial gas fraction and halo triaxiality, plus few other control runs with different structural parameters; the kinematic information was extracted using the Voronoi-binning technique and parametrised up to the fourth order of a Gauss-Hermite series. Building on a previous work for the long-slit case, we investigate the 2D kinematic behaviour in the edge-on projection as a function of the boxy/peanut strength and position angle; we find that for the strongest structures the highest moments show characteristic features away from the midplane in a range of position angles. We also discuss the masking effect of a classical bulge and the ambiguity in discriminating kinematically this spherically-symmetric component from a boxy/peanut bulge seen end-on. Regarding the face-on case, we extend existing results to encompass the effect of a second bucklin...

  11. Thermal signature reduction through liquid nitrogen and water injection

    E-Print Network [OSTI]

    Guarnieri, Jason Antonio

    2005-02-17T23:59:59.000Z

    values at thermocouple locations. ................................. 45 IV Temperature values (K)at TC locations for LN2 injection on both gridsandtwoexperimentaldatasets................... 45 x LIST OF FIGURES FIGURE Page 1 Basic elements of a spin... partialdiffr(rhovr)+ rhovr r = Sm (3.4) partialdiffrho partialdifft(rho vectorV + nabla?(rhovectorV vectorV )=-nablaP + nabla???tau + rhovectorg + vectorF (3.5) partialdiffrho partialdifft(rhoE)+nabla?( vectorV (rhoE + P)) = -nabla(kef f nablaT + ??tauef f...

  12. N Partenaires Laboratoire Objet Signature Prsident 20140030 BIVB AGROECOLOGIE

    E-Print Network [OSTI]

    Herrmann, Samuel

    - Juliette DEFOSSEZ 20140108 EVEIL'O'GOUT CSGA Accueil de personnel en lien avec la plateforme ChemoSens 04

  13. SOLAR MAGNETIC FIELD SIGNATURES IN HELIOSEISMIC SPLITTING COEFFICIENTS

    SciTech Connect (OSTI)

    Baldner, Charles S.; Basu, Sarbani [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT, 06520-8101 (United States); Antia, H. M. [Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005 (India); Larson, Timothy P., E-mail: charles.baldner@yale.ed [Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305-4085 (United States)

    2009-11-10T23:59:59.000Z

    Normal modes of oscillation of the Sun are useful probes of the solar interior. In this work, we use the even-order splitting coefficients to study the evolution of magnetic fields in the convection zone over solar cycle 23, assuming that the frequency splitting is only due to rotation and a large-scale magnetic field. We find that the data are best fit by a combination of a poloidal field and a double-peaked near-surface toroidal field. The toroidal fields are centered at r {sub 0} = 0.999 R {sub sun} and r = 0.996 R {sub sun} and are confined to the near-surface layers. The poloidal field is a dipole field. The peak strength of the poloidal field is 124 +- 17 G. The toroidal field peaks at 380 +- 30 G and 1.4 +- 0.2 kG for the shallower and deeper fields, respectively. The field strengths are highly correlated with surface activity. The toroidal field strength shows a hysteresis-like effect when compared to the global 10.7 cm radio flux. The poloidal field strength shows evidence of saturation at high activity.

  14. On the complex conductivity signatures of calcite precipitation

    SciTech Connect (OSTI)

    Wu, Yuxin; Hubbard, Susan; Williams, Kenneth Hurst; Ajo-Franklin, Jonathan

    2009-11-01T23:59:59.000Z

    Calcite is a mineral phase that frequently precipitates during subsurface remediation or geotechnical engineering processes. This precipitation can lead to changes in the overall behavior of the system, such as flow alternation and soil strengthening. Because induced calcite precipitation is typically quite variable in space and time, monitoring its distribution in the subsurface is a challenge. In this research, we conducted a laboratory column experiment to investigate the potential of complex conductivity as a mean to remotely monitor calcite precipitation. Calcite precipitation was induced in a glass bead (3 mm) packed column through abiotic mixing of CaCl{sub 2} and Na{sub 2}CO{sub 3} solutions. The experiment continued for 12 days with a constant precipitation rate of {approx}0.6 milimole/d. Visual observations and scanning electron microscopy imaging revealed two distinct phases of precipitation: an earlier phase dominated by well distributed, discrete precipitates and a later phase characterized by localized precipitate aggregation and associated pore clogging. Complex conductivity measurements exhibited polarization signals that were characteristic of both phases of calcite precipitation, with the precipitation volume and crystal size controlling the overall polarization magnitude and relaxation time constant. We attribute the observed responses to polarization at the electrical double layer surrounding calcite crystals. Our experiment illustrates the potential of electrical methods for characterizing the distribution and aggregation state of nonconductive minerals like calcite. Advancing our ability to quantify geochemical transformations using such noninvasive methods is expected to facilitate our understanding of complex processes associated with natural subsurface systems as well as processes induced through engineered treatments (such as environmental remediation and carbon sequestration).

  15. Defect site prediction based upon statistical analysis of fault signatures

    E-Print Network [OSTI]

    Trinka, Michael Robert

    2004-09-30T23:59:59.000Z

    .63 2 c499 11 69.16 27.8 2 c880 5 88.94 31.68 2 c1355 17 63.05 15.5 4 c1908 11 70.82 19.84 3 c2670 20 66.96 22.23 3 c3540 19 79.63 25.41 3 c5315 10 77.4 25.81 3 c6288 54 38.57 8.22 4 c7552 18 65.12 18.76 3 Average 17 71.42 24.09 3... c1908 10 77.1 33.27 2 c2670 20 73.51 32.37 2 c3540 18 87.31 36.69 2 c5315 11 84.25 45.72 2 c6288 67 38.99 11.68 3 c7552 14 76.47 33.79 2 Average 17 77.46 35.18 2 16 Table 3 Mixed Surrogate Results Circuit Average Position Percent...

  16. A Complete Dichotomy Rises from the Capture of Vanishing Signatures

    E-Print Network [OSTI]

    Cai, Jin-Yi

    . They turned out to be essential to the complete classification of Holant problems. The dichotomy theorem has theorems on Holant problems and Boolean #CSP. 1 Introduction In the study of counting problems, several Homomorphism [33, 1, 5, 21, 22, 25, 7, 28]. Another is called Constraint Satisfaction Problems (#CSP) [2, 3, 4

  17. Seismic signatures of reservoir transport properties and pore fluid distribution

    SciTech Connect (OSTI)

    Akbar, N. (Saudi Aramco, Dhahran (Saudi Arabia)); Mavko, G.; Nur, A.; Dvorkin, J. (Stanford Univ., CA (United States). Dept. of Geophysics)

    1994-08-01T23:59:59.000Z

    The authors investigate the effects of permeability, frequency, and fluid distribution on the viscoelastic behavior of rock. The viscoelastic response of rock to seismic waves depends on the relative motion of pore fluid with respect to the solid phase. They consider wave-induced squirt fluid flow at two scales: (1) local microscopic flow at the smallest scale of saturation heterogeneity (e.g., within a single pore) and (2) macroscopic flow at a larger scale of fluid-saturated and dry patches. They explore the circumstances under which each of these mechanisms prevails. They examine such flows under the conditions of uniform confining (bulk) compression and obtain the effective dynamic bulk modulus of rock. The solutions are formulated in terms of generalized frequencies that depend on frequency, saturation, fluid and gas properties, and on the macroscopic properties of rock such as permeability, porosity, and dry bulk modulus. The study includes the whole range of saturation and frequency; therefore, the authors provide the missing link between the low-frequency limit and the high-frequency limit given by Mavko and Jizba. Further, they compare their model with Biot's theory and introduce a geometrical factor whose numeric value gives an indication as to whether local fluid squirt or global mechanisms dominate the viscoelastic properties of porous materials. The important results of their theoretical modeling are: (1) a hysteresis of acoustic velocity versus saturation resulting from variations in fluid distributions, and (2) two peaks of acoustic wave attenuation--one at low frequency and another at higher frequency (caused by local flow). Both theoretical results are compared with experimental data.

  18. Decoupling phenomena in supercooled liquids: Signatures in the energy landscape

    E-Print Network [OSTI]

    Dwaipayan Chakrabarti; Biman Bagchi

    2005-10-26T23:59:59.000Z

    A significant deviation from the Debye model of rotational diffusion in the dynamics of orientational degrees of freedom in an equimolar mixture of ellipsoids of revolution and spheres is found to begin precisely at a temperature at which the average inherent structure energy of the system starts falling with drop in temperature. We argue that this onset temperature corresponds to the emergence of the alpha-process as a distinct mode of orientational relaxation. Equally important, we find that the coupling between the rotational and translational diffusion breaks down at a still lower temperature where a sharp change occurs in the temperature dependence of the average inherent structure energy.

  19. Exploring the geophysical signatures of microbial processes in the earth

    E-Print Network [OSTI]

    Slater, L.

    2009-01-01T23:59:59.000Z

    Arctic Natural Sciences, Antarctic Earth Sciences, Antarcticof Microbial Processes in the Earth Lee Slater 1 , Estellaa rapidly evolving Earth science discipline that integrates

  20. Modeling of Seismic Signatures of Carbonate Rock Types

    E-Print Network [OSTI]

    Jan, Badr H.

    2011-02-22T23:59:59.000Z

    Carbonate reservoirs of different rock types have wide ranges of porosity and permeability, creating zones with different reservoir quality and flow properties. This research addresses how seismic technology can be used ...

  1. Wireless Device Identification with Radiometric Signatures Vladimir Brik

    E-Print Network [OSTI]

    Gruteser, Marco

    . ORISE is managed by Oak Ridge Associated Universities (ORAU) un- der DOE contract number DE-AC05-06OR23100. All opinions expressed in this paper are the author's and do not necessarily reflect the policies

  2. A DYNAMICAL SIGNATURE OF MULTIPLE STELLAR POPULATIONS IN 47 TUCANAE

    SciTech Connect (OSTI)

    Richer, Harvey B.; Heyl, Jeremy [Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada); Anderson, Jay; Kalirai, Jason S. [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Shara, Michael M. [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 (United States); Dotter, Aaron [Research School of Astronomy and Astrophysics, Australian National University, Weston, ACT 2611 (Australia); Fahlman, Gregory G. [National Research Council, Herzberg Institute of Astrophysics, Victoria, BC V9E 2E7 (Canada); Rich, R. Michael, E-mail: richer@astro.ubc.ca, E-mail: heyl@phas.ubc.ca, E-mail: jayander@stsci.edu, E-mail: jkalarai@stsci.edu, E-mail: mshara@amnh.org, E-mail: aaron.dotter@gmail.com, E-mail: greg.fahlman@nrc-cnrc.gc.ca, E-mail: rmr@astro.ucla.edu [Division of Astronomy and Astrophysics, University of California at Los Angeles, Los Angeles, CA 90095 (United States)

    2013-07-01T23:59:59.000Z

    Based on the width of its main sequence, and an actual observed split when viewed through particular filters, it is widely accepted that 47 Tucanae contains multiple stellar populations. In this contribution, we divide the main sequence of 47 Tuc into four color groups, which presumably represent stars of various chemical compositions. The kinematic properties of each of these groups are explored via proper motions, and a strong signal emerges of differing proper-motion anisotropies with differing main-sequence color; the bluest main-sequence stars exhibit the largest proper-motion anisotropy which becomes undetectable for the reddest stars. In addition, the bluest stars are also the most centrally concentrated. A similar analysis for Small Magellanic Cloud stars, which are located in the background of 47 Tuc on our frames, yields none of the anisotropy exhibited by the 47 Tuc stars. We discuss implications of these results for possible formation scenarios of the various populations.

  3. Quantification of residual stress from photonic signatures of fused silica

    SciTech Connect (OSTI)

    Cramer, K. Elliott; Yost, William T. [NASA Langley Research Center, Hampton, VA 23681 (United States); Hayward, Maurice [College of William and Mary, Williamsburg, VA 23185 (United States)

    2014-02-18T23:59:59.000Z

    A commercially available grey-field polariscope (GFP) instrument for photoelastic examination is used to assess impact damage inflicted upon the outer-most pane of Space Shuttle windows made from fused silica. A method and apparatus for calibration of the stress-optic coefficient using four-point bending is discussed. The results are validated on known material (acrylic) and are found to agree with literature values to within 6%. The calibration procedure is then applied to fused-silica specimens and the stress-optic coefficient is determined to be 2.43 0.54 10{sup ?12} Pa{sup ?1}. Fused silica specimens containing impacts artificially made at NASAs Hypervelocity Impact Technology Facility (HIT-F), to simulate damage typical during space flight, are examined. The damage sites are cored from fused silica window carcasses and examined with the GFP. The calibrated GFP measurements of residual stress patterns surrounding the damage sites are presented.

  4. Development of a Reaction Signature for Combined Concrete Materials

    E-Print Network [OSTI]

    Ghanem, Hassan A.

    2010-07-14T23:59:59.000Z

    stresses in concrete. When those stresses exceed the tensile strength of concrete, cracks occur. The main objective of this study was to address a method of testing concrete materials as a combination to assist engineers to effectively mitigate ASR...

  5. LETTER TO THE EDITOR An extended structural signature

    E-Print Network [OSTI]

    Westhof, Eric

    that include the first motif that has been charac- terized in RNA molecules, namely the U-turn motif (Quigley and the OR atom of residue 35, and a sharp reversal of the phosphodiester backbone following U33 (Quigley & Rich) hydrogen bond is formed (Quigley & Rich, 1976)+ Indeed, such a hydrogen bond can be formed when a purine

  6. Ultra High Energy Neutrino Signature in Top-Down Scenario

    E-Print Network [OSTI]

    Roberto Aloisio

    2006-12-22T23:59:59.000Z

    Neutrinos are the best candidates to test the extreme Universe and ideas beyond the Standard Model of particle Physics. Once produced, neutrinos do not suffer any kind of attenuation by intervening radiation fields like the Cosmic Microwave Background and are not affected by magnetic fields. In this sense neutrinos are useful messengers from the far and young Universe. In the present paper we will discuss a particular class of sources of Ultra High Energy Cosmic Rays introduced to explain the possible excess of events with energy larger than the Graisen-Zatsepin-Kuzmin cut-off. These sources, collectively called top-down, share a common feature: UHE particles are produced in the decay or annihilation of superheavy, exotic, particles. As we will review in the present paper, the largest fraction of Ultra High Energy particles produced in the top-down scenario are neutrinos. The study of these radiation offers us a unique opportunity to test the exotic mechanisms of the top-down scenario.

  7. Almost Einstein and Poincare-Einstein manifolds in Riemannian signature

    E-Print Network [OSTI]

    A. Rod Gover

    2008-03-25T23:59:59.000Z

    An almost Einstein manifold satisfies equations which are a slight weakening of the Einstein equations; Einstein metrics, Poincare-Einstein metrics, and compactifications of certain Ricci-flat asymptotically locally Euclidean structures are special cases. The governing equation is a conformally invariant overdetermined PDE on a function. Away from the zeros of this the almost Einstein structure is Einstein, while the zero set gives a scale singularity set which may be viewed as a conformal infinity for the Einstein metric. In this article we give a classification of the possible scale singularity spaces and derive geometric results which explicitly relate the intrinsic conformal geometry of these to the conformal structure of the ambient almost Einstein manifold. Classes of examples are constructed. A compatible generalisation of the constant scalar curvature condition is also developed. This includes almost Einstein as a special case, and when its curvature is suitably negative, is closely linked to the notion of an asymptotically hyperbolic structure.

  8. The Aerodynamic Signature of Running Spiders Jero^ me Casas1

    E-Print Network [OSTI]

    Boyer, Edmond

    and ecological terms, without considering the role of signals produced by predators and perceived by prey. Wolf of sensory ecology and is consistent with the escape distances and speeds of cricket prey. These findings may the Cricket Inspired perCeption and Autonomous Decision Automata (CICADA) project (IST-2001- 34718) and within

  9. Genomic signatures of relaxed disruptive selection associated with speciation reversal

    E-Print Network [OSTI]

    within the most polluted lakes. Here we investigate the effects of eutrophication on the selective forces oxygen concentration) representing the strength of eutrophication. Results: Whilst we identify disruptive eutrophication: as the likelihood decreases that AFLP restriction sites will fall within regions of heightened

  10. Global isotopic signatures of oceanic island basalts / by

    E-Print Network [OSTI]

    Oschmann, Lynn A

    1991-01-01T23:59:59.000Z

    Sr, Nd and Pb isotopic analyses of 477 samples representing 30 islands or island groups, 3 seamounts or seamount chains, 2 oceanic ridges and 1 oceanic plateau [for a total of 36 geographic features] are compiled to form ...

  11. Satellite-viewed cloud signatures associated with extratropical cyclogenesis

    E-Print Network [OSTI]

    Lapierre, Robert Lucien

    1973-01-01T23:59:59.000Z

    the invaluable assistance of Nrs. Glenna N. Brundidge in the preparation and typing of this thesis. I To my wife Sharon, and my daughters, Tina Marie and Tammy Ann, I extent my gratitude for their patience, love, and under- standing, for which I will forever...

  12. Signatures of Dark Matter Halo Expansion in Galaxy Populations

    E-Print Network [OSTI]

    Brook, Chris B

    2015-01-01T23:59:59.000Z

    Dark matter cores within galaxy haloes can be formed by energy feedback from star forming regions: an energy balance suggests that the maximum core formation efficiency arises in galaxies with M$_{\\star}\\sim10^{8.5}$M$_{\\odot}$. We show that a model population of galaxies, in which the density profile has been modified by such baryonic feedback, is able to explain the observed galaxy velocity function and Tully-Fisher relations significantly better than a model in which a universal cuspy density profile is assumed. Alternative models, namely warm or self-interacting dark matter, also provide a better match to these observed relations than a universal profile model does, but make different predictions for how halo density profiles vary with mass compared to the baryonic feedback case. We propose that different core formation mechanisms may be distinguished based on the imprint they leave on galaxy populations over a wide range of mass. Within the current observational data we find evidence of the expected sign...

  13. Practical Forward Secure Group Signature Schemes Dawn Xiaodong Song

    E-Print Network [OSTI]

    Song, Dawn

    applications such as electronic banking systems and electronic voting. Two important issues ­ forward security Contract N66001-99-2-8913 is under the supervision of the Space and Naval Warfare Systems Center, San Diego

  14. On the complex conductivity signatures of calcite precipitation

    E-Print Network [OSTI]

    Wu, Yuxin

    2010-01-01T23:59:59.000Z

    06 R 2 = 0.9713 cumulative CaCO3 precipitation (g) mn m n =R 2 = 0 . 9497 Cumulative CaCO3 precipitation (g) Figure 6

  15. An on-line human signature verification system

    E-Print Network [OSTI]

    Simsek, Burc A

    2000-01-01T23:59:59.000Z

    of Prisons Other Prisons U. S. Department of State U. S. Department of Treasury Internal Revenue Service U. S. Secret Service Bureau of Printing and Engraving Border Patrol evaluating facial imaging, voice verification, hand geometry, and finger... for smart gun technology. A smart gun incorporates, for example, biometric technology into the operating system of a firearm to restrict the firing of the weapon to authorized users. Finger imaging to secure access to information about narcotics Hand...

  16. 10 Questions for a Signature Scientist: Nathan Baker

    Broader source: Energy.gov [DOE]

    Find out how hes working to advance the innovative application of data analytics and algorithms to real-world challenges, ranging from smart grids and bioforensics to nuclear non-proliferation and medical treatments.

  17. SU4 light stop signature analysis at ATLAS

    SciTech Connect (OSTI)

    Krstic, Jelena; Milosavljevic, Marija; Popovic, Dragan [Institute of Physics, Belgrade (Serbia and Montenegro)

    2007-04-23T23:59:59.000Z

    A possibility to observe light stop signal above the Standard Model background was analysed for SU4 low mass SUSY model. With a production cross section of 270 pb, SU4 seems to be a promising target for SUSY searches with early ATLAS data. In order to extract a light stop signal from the decay g-tilde {yields} t-tilde{sub 1}t {yields} {chi}-tilde{sub 1}{sup {+-}}tb the final state tb invariant mass distribution was reconstructed. A kinematic endpoint was observed at a position close to the expected value for this decay chain which is 300 GeV. By establishing proper event selection criteria SM backgrounds can be suppressed to the level S/B > 4 with only 200 pb-1 of data. The analysis was performed on fully simulated ATLAS data.

  18. Signatures of Heating and Cooling Energy Consumption for Typical AHUs

    E-Print Network [OSTI]

    Wei, G.; Liu, M.; Claridge, D. E.

    1998-01-01T23:59:59.000Z

    -duct system, the cold deck temperature is set to 55 OF. The hot deck temperature is reset based on the outside air temperature: it is set to 1 10 OF when the outside air temperature is below 40 OF and linearly decreases to 80 OF when the outside air... Cold deck temperature set point T, Supply air Floor area Changes made decreased from 55 OF to 53 OF raised from 1.2 cfm/ft2 to 1.3 cfm/ft2 raised from 120,000 ft2 to 130,000 ft2 - - Hot deck temperature set point Th 1 Outside air flow I...

  19. HUMAN ELECTROCORTIGRAPHIC SIGNATURE DETERMINATION BY EGAD SPARSE APPROXIMATION

    E-Print Network [OSTI]

    Nehorai, Arye

    correlated suppression of alpha (8-13 Hz.) and increases in gamma (> 30 Hz.) energy in activated brain areas. We reexamine two chan- nels of ECoG and one channel of EMG over an ensemble of 49 tri- als. Each

  20. Otolith elemental signatures reflect residency in coastal water masses

    E-Print Network [OSTI]

    Nishimoto, Mary M.; Washburn, Libe; Warner, Robert R.; Love, Milton S.; Paradis, Georges L.

    2010-01-01T23:59:59.000Z

    defined by Hurst and Bruland 2008) and subarctic water (meanupwelled waters (Hurst and Bruland 2008). Elevated Ba/Ca inSci 56:578591 Hurst MP, Bruland KW (2008) The effects of

  1. 3D-FFT for Signature Detection in LWIR Images

    SciTech Connect (OSTI)

    Medvick, Patricia A.; Lind, Michael A.; Mackey, Patrick S.; Nuffer, Lisa L.; Foote, Harlan P.

    2007-11-20T23:59:59.000Z

    Improvements in analysis detection exploitation are possible by applying whitened matched filtering within the Fourier domain to hyperspectral data cubes. We describe an implementation of a Three Dimensional Fast Fourier Transform Whitened Matched Filter (3DFFTMF) approach and, using several example sets of Long Wave Infra Red (LWIR) data cubes, compare the results with those from standard Whitened Matched Filter (WMF) techniques. Since the variability in shape of gaseous plumes precludes the use of spatial conformation in the matched filtering, the 3DFFTMF results were similar to those of two other WMF methods. Including a spatial low-pass filter within the Fourier space can improve signal to noise ratios and therefore improve detection limit by facilitating the mitigation of high frequency clutter. The improvement only occurs if the low-pass filter diameter is smaller than the plume diameter.

  2. Electromagnetic signature of human cortical dynamics during wakefulness and sleep

    E-Print Network [OSTI]

    Destexhe, Alain

    . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3 #12;4 2.2 From micro-scale to meso-scale to macro-scale . . . . . . . . . . . . . . . . . 30 2

  3. Brain structural signatures of negative symptoms in depression and schizophrenia

    E-Print Network [OSTI]

    Chuang, Jie-Yu; Murray, Graham K.; Metastasio, Antonio; Segarra, Nuria; Tait, Roger; Spencer, Jenny; Ziauddeen, Hisham; Dudas, Robert B.; Fletcher, Paul C.; Suckling, John

    2014-08-27T23:59:59.000Z

    . Paillre-Martinot M, Caclin A, Artiges E, Poline JB, Joliot M, Mallet L, et al. Cerebral gray 431 and white matter reductions and clinical correlates in patients with early onset schizophrenia. 432 Schizophr Res. 2001;50:1926. doi:S0920996400001377 [pii...

  4. Modeling of Seismic Signatures of Carbonate Rock Types

    E-Print Network [OSTI]

    Jan, Badr H.

    2011-02-22T23:59:59.000Z

    Carbonate reservoirs of different rock types have wide ranges of porosity and permeability, creating zones with different reservoir quality and flow properties. This research addresses how seismic technology can be used to identify different...

  5. antarctic climate signature: Topics by E-print Network

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

    solar activity proxies region to represent galactic cosmic ray flux and, consequently, solar activity. We used the data from Usoskin, Ilya G. 29 The ocean's role in polar...

  6. On the complex conductivity signatures of calcite precipitation

    E-Print Network [OSTI]

    Wu, Yuxin

    2010-01-01T23:59:59.000Z

    abiotic mixing of calcium and carbonate solutions underSolutions Containing Calcium Carbonate with Trichloroethene

  7. Microsoft Word - Alcoa Contract 12-09-09 blackline signature...

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

    G. "FTE" shall mean full-time annual equivalent employment (including part-time and partial year) for regular employees of Alcoa at the Intalco Plant and contractor employees...

  8. The hydraulic bump: The surface signature of a plunging jet

    E-Print Network [OSTI]

    Labousse, M.

    When a falling jet of fluid strikes a horizontal fluid layer, a hydraulic jump arises downstream of the point of impact, provided a critical flow rate is exceeded. We here examine a phenomenon that arises below this jump ...

  9. Search for the pentaquark resonance signature in lattice QCD

    SciTech Connect (OSTI)

    B. G. Lasscock; J. Hedditch; D. B. Leinweber; W. Melnitchouk; A. W. Thomas; A. G. Williams; R. D. Young; J. M. Zanotti

    2005-03-01T23:59:59.000Z

    Claims concerning the possible discovery of the $\\Theta^+$ pentaquark, with minimal quark content $uudd\\bar{s}$, have motivated our comprehensive study into possible pentaquark states using lattice QCD. We review various pentaquark interpolating fields in the literature and create a new candidate ideal for lattice QCD simulations. Using these interpolating fields we attempt to isolate a signal for a five-quark resonance. Calculations are performed using improved actions on a large $20^{3} \\times 40$ lattice in the quenched approximation. The standard lattice resonance signal of increasing attraction between baryon constituents for increasing quark mass is not observed for spin-1/2 pentaquark states. We conclude that evidence supporting the existence of a spin-1/2 pentaquark resonance does not exist in quenched QCD.

  10. Magnetic signature of granular superconductivity in electrodeposited Pb nanowires

    SciTech Connect (OSTI)

    Riminucci, Alberto, E-mail: a.riminucci@bo.ismn.cnr.it [CNR, Institute for Nanostructured Materials, Via Gobetti 101, 40129 Bologna (Italy); H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL (United Kingdom); Schwarzacher, Walther [H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL (United Kingdom)

    2014-06-14T23:59:59.000Z

    Nanocrystalline freestanding Pb nanowires ?200?nm in diameter were fabricated by electrodeposition into track etched polycarbonate membranes in order to study their superconducting properties. Their superconducting critical temperature, as determined by measuring the Meissner effect, was the same as for bulk Pb, but their critical field was greatly enhanced up to ?3000?Oe. By assuming the wires consisted of spherical superconducting grains, an estimated grain size r?=?60??25?nm was obtained from the magnetization measured as a function of the applied magnetic field at a fixed temperature. An independent estimate for r?=?47??12?nm, in good agreement with the previous one, was obtained from the magnetization measured as a function of temperature at a fixed applied magnetic field. Transmission electron microscopy was used to characterize grain size at the wire edges, where a grain size in agreement with the magnetic studies was observed.

  11. Signatures of Granulation in the Spectra of K-Dwarfs

    E-Print Network [OSTI]

    I. Ramirez; C. Allende Prieto; D. L. Lambert; M. Asplund

    2007-12-03T23:59:59.000Z

    Very high resolution (R>150,000) spectra of a small sample of nearby K-dwarfs have been acquired to measure the line asymmetries and central wavelength shifts caused by convective motions present in stellar photospheres. This phenomenon of granulation is modeled by 3D hydrodynamical simulations but they need to be confronted with accurate observations to test their realism before they are used in stellar abundance studies. We find that the line profiles computed with a 3D model agree reasonably well with the observations. The line bisectors and central wavelength shifts on K-dwarf spectra have a maximum amplitude of only about 200 m/s and we have been able to resolve these granulation effects with a very careful observing strategy. By computing a number of iron lines with 1D and 3D models (assuming local thermodynamic equilibrium), we find that the impact of 3D-LTE effects on classical iron abundance determinations is negligible.

  12. anomaly driven signatures: Topics by E-print Network

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

    Analysis of power spectrum profiles for various tagged particle quantities in bulk SPCE water is used to demonstrate that variations in mobility associated with the...

  13. Supernova Seismology: Gravitational Wave Signatures of Rapidly Rotating Core Collapse

    E-Print Network [OSTI]

    Fuller, Jim; Abdikamalov, Ernazar; Ott, Christian

    2015-01-01T23:59:59.000Z

    Gravitational waves (GW) generated during a core-collapse supernova open a window into the heart of the explosion. At core bounce, progenitors with rapid core rotation rates exhibit a characteristic GW signal which can be used to constrain the properties of the core of the progenitor star. We investigate the dynamics of rapidly rotating core collapse, focusing on hydrodynamic waves generated by the core bounce and the GW spectrum they produce. The centrifugal distortion of the rapidly rotating proto-neutron star (PNS) leads to the generation of axisymmetric quadrupolar oscillations within the PNS and surrounding envelope. Using linear perturbation theory, we estimate the frequencies, amplitudes, damping times, and GW spectra of the oscillations. Our analysis provides a qualitative explanation for several features of the GW spectrum and shows reasonable agreement with nonlinear hydrodynamic simulations, although a few discrepancies due to non-linear/rotational effects are evident. The dominant early postbounce...

  14. Manager's Signature Log Privacy Impact Assessment, Office of...

    Office of Environmental Management (EM)

    PIA - Tour Tracker Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking Database, INL Energy Employees' Occupational Illness Compensation Program...

  15. DILEPTON SIGNATURE IN e+e- ->He+e-

    E-Print Network [OSTI]

    Kelly, R.L.

    2013-01-01T23:59:59.000Z

    define normalized coefficients PLM anintegrated productionreaction (1) the coefficients pLM are functions of MH/M ,

  16. Exploring the geophysical signatures of microbial processes in the earth

    E-Print Network [OSTI]

    Slater, L.

    2009-01-01T23:59:59.000Z

    at field sites (where bioremediation monitoring strategiesunderstanding of bioremediation processes associated withfor studies conducted at bioremediation sites. The linkage

  17. On the complex conductivity signatures of calcite precipitation

    E-Print Network [OSTI]

    Wu, Yuxin

    2010-01-01T23:59:59.000Z

    heterogeneity and bioremediation induced biogeochemicalassociated with Cr(VI) bioremediation, Environment Scienceassociated with uranium bioremediation at Rifle, Colorado,

  18. Signatures of Arithmetic Simplicity in Metabolic Network Architecture

    E-Print Network [OSTI]

    Segr, Daniel

    from the Office of Science (BER), U.S. Department of Energy (No. DE-FG02-07ER64388), NASA (NASA Astrobiology Institute, NNA08CN84A), and the National Science Foundation (NSF DMR0535503, DMR0906504 and NSF in the Earth's atmosph

  19. acoustic signature recognition: Topics by E-print Network

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

    Face Recognition Computer Technologies and Information Sciences Websites Summary: , eyeglasses, which block thermal energy, are detected from thermal images and replaced with an...

  20. Distinctive genetic signatures in the Libyan Jews Noah A. Rosenberg*

    E-Print Network [OSTI]

    Rosenberg, Noah

    contained in Libya records the settlement of Jews from Egypt around 312 BCE (1, 2), and the ancient in the 6th century (1), and others may have arrived from Arabia and Syria with the Moslem conquest of Libya of North Africa, Libya did not serve as a major destination of Iberian Jews seeking refuge after their 1492