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Sample records for mace kp moran

  1. John A. Moran Eye Center

    E-Print Network [OSTI]

    Marc, Robert E.

    Normann Professor of Biomedical Engineering Adjunct Professor of Ophthalmology Artificial Vision Bradley#12;The John A. Moran Eye Center 2011 Visualizing Vision #12;John A. Moran Eye Center Research Profile · The Vision Institute · 21 NIH grants (18 JMEC, Vision Core) · 20 research

  2. Robert E. Marc Moran Eye Center

    E-Print Network [OSTI]

    Marc, Robert E.

    #12;Robert E. Marc Moran Eye Center University of Utah Disclosure REM is a principal of Signature IN RETINAL NEUROANATOMY Marc RE 2010 Synaptic Organization of the retina. Adler's Physiology of the Eye 7(3): e1000074 Marc RE 2009 Functional Anatomy of the Retina. Duane's Foundations of Clinical

  3. ARM - VAP Product - mergesonde2mace

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace Documentation Data Management Facility Plots (Quick Looks)

  4. KP solitons in shallow water

    E-Print Network [OSTI]

    Yuji Kodama

    2010-04-26

    The main purpose of the paper is to provide a survey of our recent studies on soliton solutions of the Kadomtsev-Petviashvili (KP) equation. The classification is based on the far-field patterns of the solutions which consist of a finite number of line-solitons. Each soliton solution is then defined by a point of the totally non-negative Grassmann variety which can be parametrized by a unique derangement of the symmetric group of permutations. Our study also includes certain numerical stability problems of those soliton solutions. Numerical simulations of the initial value problems indicate that certain class of initial waves asymptotically approach to these exact solutions of the KP equation. We then discuss an application of our theory to the Mach reflection problem in shallow water. This problem describes the resonant interaction of solitary waves appearing in the reflection of an obliquely incident wave onto a vertical wall, and it predicts an extra-ordinary four-fold amplification of the wave at the wall. There are several numerical studies confirming the prediction, but all indicate disagreements with the KP theory. Contrary to those previous numerical studies, we find that the KP theory actually provides an excellent model to describe the Mach reflection phenomena when the higher order corrections are included to the quasi-two dimensional approximation. We also present laboratory experiments of the Mach reflection recently carried out by Yeh and his colleagues, and show how precisely the KP theory predicts this wave behavior.

  5. Public Data Structures: Counters as a Special Case Shlomo Moran

    E-Print Network [OSTI]

    Taubenfeld, Gadi

    Public Data Structures: Counters as a Special Case Hagit Brit Shlomo Moran Gadi Taubenfeld§ June 4, 2001 Abstract A public data structure is required to work correctly in a concurrent environment where many processes may try to access it, possibly at the same time. In implementing such a structure

  6. City of Moran, Kansas (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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler, Iowa (Utility Company)Menasha,Monroe City,Moran, Kansas

  7. Identification of Local Clusters for Count Data: A Model-Based Moran's I Test

    E-Print Network [OSTI]

    Zhang, Tonglin

    in detecting local clusters by local association terms with an acceptable type I error probability. When usedIdentification of Local Clusters for Count Data: A Model-Based Moran's I Test Tonglin Zhang and Ge@wvu.edu 0 #12;Identification of Local Clusters for Count Data: A Model-Based Moran's I Test Abstract We set

  8. Construction of KP solitons from wave patterns

    E-Print Network [OSTI]

    Sarbarish Chakravarty; Yuji Kodama

    2013-09-10

    We often observe that waves on the surface of shallow water form complex web-like patterns. They are examples of nonlinear waves, and these patterns are generated by nonlinear interactions among several obliquely propagating waves. In this note, we discuss how to construct an exact soliton solution of the KP equation from such web-pattern of shallow water wave. This can be regarded as an "inverse problem" in the sense that by measuring certain metric data of the solitary waves in the given pattern, it is possible to construct an exact KP soliton solution which can describe the non-stationary dynamics of the pattern.

  9. On KP-integrable Hurwitz functions

    E-Print Network [OSTI]

    Alexandrov, A; Morozov, A; Natanzon, S

    2014-01-01

    There is now a renewed interest to the Hurwitz tau-function, counting the isomorphism classes of Belyi pairs, arising in the study of equilateral triangulations and Grothiendicks's dessins d'enfant. It is distinguished by belonging to a particular family of Hurwitz tau-functions, possessing conventional Toda/KP integrability properties. We explain how the variety of recent observations about this function fits into the general theory of matrix model tau-functions. All such quantities possess a number of different descriptions, related in a standard way: these include Toda/KP integrability, several kinds of W-representations (we describe four), two kinds of integral (multi-matrix model) descriptions (of Hermitian and Kontsevich types), Virasoro constraints, character expansion, embedding into generic set of Hurwitz tau-functions and relation to knot theory. When approached in this way, the family of models in the literature has a natural extension, and additional integrability with respect to associated new ti...

  10. KP Renewables Plc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA) Jump to: navigation,WindJust Wind LLC JumpKP

  11. Characterisation of individual airborne particles by using aerosol time-of-flight mass spectrometry (ATOFMS) at Mace Head, Ireland, 

    E-Print Network [OSTI]

    Dall'Osto, Manuel; Beddows, David C S; Kinnersley, Robert P; Harrison, Roy M; Donovan, Robert J; Heal, Mathew R

    2004-01-01

    An aerosol time-of-flight mass spectrometer was deployed at Mace Head (Ireland) during August 2002. The measurements provide qualitative chemical composition and size distribution (0.3–3 ?m) information for single ...

  12. Basing Cryptographic Protocols on Tamper-Evident Tal Moran,a,1,2

    E-Print Network [OSTI]

    Moran, Tal

    Basing Cryptographic Protocols on Tamper-Evident Seals$ Tal Moran,a,1,2 , Moni Naora,3 a are called "tamper-evident seals". Another physical object with this property is the "scratch-off card", of- ten used in lottery tickets. We consider three variations of tamper-evident seals, and show that under

  13. Anonymity and CSP for Voting Systems Murat Moran, James Heather, Steve Schneider

    E-Print Network [OSTI]

    Doran, Simon J.

    Anonymity and CSP for Voting Systems Murat Moran, James Heather, Steve Schneider Department Processes (CSP). In addition, we formalise conventional voting system with CSP and analyse whether our and the weak anonymity is more suitable specification for the voting processes. Keywords: anonymity, CSP

  14. Kaonic hydrogen versus the $K^{-}p$ low energy data

    E-Print Network [OSTI]

    A. Cieply; J. Smejkal

    2008-01-18

    We present an exact solution to the $K^{-}$-proton bound state problem formulated in the momentum space. The 1s level characteristics of the kaonic hydrogen are computed simultaneously with the available low energy $K^{-}p$ data. In the strong interaction sector the meson-baryon interactions are described by means of an effective (chirally motivated) separable potential and its parameters are fitted to the experimental data.

  15. Kaonic hydrogen versus the $K^{-}p$ low energy data

    E-Print Network [OSTI]

    Cieply, A

    2007-01-01

    We present an exact solution to the $K^{-}$-proton bound state problem formulated in the momentum space. The 1s level characteristics of the kaonic hydrogen are computed simultaneously with the available low energy $K^{-}p$ data. In the strong interaction sector the meson-baryon interactions are described by means of an effective (chirally motivated) separable potential and its parameters are fitted to the experimental data.

  16. Public Data Structures: Counters as a Special Case \\Lambda Hagit Brit y Shlomo Moran yz Gadi Taubenfeld x

    E-Print Network [OSTI]

    Moran, Shlomo

    Public Data Structures: Counters as a Special Case \\Lambda Hagit Brit y Shlomo Moran yz Gadi Taubenfeld x June 5, 2001 Abstract A public data structure is required to work correctly in a concurrent such a structure nothing can be assumed in advance about the number or the identities of the processes that might

  17. JV between KP Renewables and Living Buildings | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,Open EnergyIssaquah,Energy InformationIncKP

  18. MORAN, AMY CHRISTINE. A North Carolina Field Study to Evaluate Greenroof Runoff Quantity, Runoff Quality, and Plant Growth. (Under the direction of Gregory D. Jennings

    E-Print Network [OSTI]

    Hunt, William F.

    ABSTRACT MORAN, AMY CHRISTINE. A North Carolina Field Study to Evaluate Greenroof Runoff Quantity greenroofs were constructed for research and demonstration purposes in North Carolina; the first in North Carolina are Delosperma nubigenum, Sedum album, Sedum album murale, Sedum floriferum, Sedum

  19. DFTand k.p modellingof the phase transitions of lead and tin halideperovskites for photovoltaic cells

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    DFTand k.p modellingof the phase transitions of lead and tin halideperovskites for photovoltaic Rennes, UMR 6226, 35042 Rennes, France KeywordsPerovskite, photovoltaic, first-principles calculations, k these hybrid semiconductor photovoltaic cells(HSPC) maydiffer from the one of dye-sensitized solar cells (DSSC

  20. Session KP1.118 Stability of a Levitated Dipole Confined Plasma

    E-Print Network [OSTI]

    Session KP1.118 Stability of a Levitated Dipole Confined Plasma in Closed Line magnetic Fields J ON CONVECTIVE CELLS 1 #12;ABSTRACT The confinement of a plasma in a levitated dipole has been shown to possess is exceeded the initial value solutions indicate the formation of convective cells. By assuming a simple flow

  1. mace-98.pdf

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26th AnnualHistoryM aterialsmFUSE: Function Sequencer formac |7

  2. moran-98.pdf

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26th AnnualHistoryMIII: TheJoint Statisticsmolybdenum |NERSC,77

  3. moran-99.PDF

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26th AnnualHistoryMIII: TheJoint Statisticsmolybdenum

  4. MAGNETIC CONFINEMENT OF RADIOTHERAPY BEAM-DOSE F.D. Becchetti, D.W. Litzenberg, J.M. Moran, T.W. O'Donnell, D.A. Roberts, B.A. Fraass, D.L.

    E-Print Network [OSTI]

    Becchetti, Fred

    MAGNETIC CONFINEMENT OF RADIOTHERAPY BEAM-DOSE PROFILES F.D. Becchetti, D.W. Litzenberg, J.M. Moran the magnetic confinement of HE electron and photon beam-dose profiles for typical radiotherapy beams. The HE magnetic field can provide a substantial improvement and control of the dose profile of clinical electron

  5. Soliton solutions of the KP equation and application to shallow water waves

    E-Print Network [OSTI]

    Sarvarish Chakravarty; Yuji Kodama

    2009-04-17

    The main purpose of this paper is to give a survey of recent development on a classification of soliton solutions of the KP equation. The paper is self-contained, and we give a complete proof for the theorems needed for the classification. The classification is based on the Schubert decomposition of the real Grassmann manifold, Gr$(N,M)$, the set of $N$-dimensional subspaces in $\\mathbb{R}^M$. Each soliton solution defined on Gr$(N,M)$ asymptotically consists of the $N$ number of line-solitons for $y\\gg 0$ and the $M-N$ number of line-solitons for $y\\ll 0$. In particular, we give the detailed description of those soliton solutions associated with Gr$(2,4)$, which play a fundamental role of multi-soliton solutions. We then consider a physical application of some of those solutions related to the Mach reflection discussed by J. Miles in 1977.

  6. Bispectrality of $N$-Component KP Wave Functions: A Study in Non-Commutativity

    E-Print Network [OSTI]

    Alex Kasman

    2015-06-09

    A wave function of the $N$-component KP Hierarchy with continuous flows generated by $z$ times the powers of an invertible matrix $H$ is constructed from the choice an $MN$-dimensional space of finitely-supported vector distributions. This wave function is shown to be an eigenfunction for a ring of matrix differential operators in $x$ having eigenvalues that are matrix functions of the spectral parameter $z$. If the space of distributions is invariant under left multiplication by $H$, then a matrix coefficient differential-translation operator in $z$ is shown to share this eigenfunction and have an eigenvalue that is a matrix function of $x$. This paper not only generates new examples of bispectral operators, it also explores the consequences of non-commutativity for techniques and objects used in previous investigations.

  7. Cooling Neutron Stars and Super uidity in Their Interiors D.G. Yakovlev, K.P. Leven sh, Yu.A. Shibanov

    E-Print Network [OSTI]

    Cooling Neutron Stars and Super uidity in Their Interiors D.G. Yakovlev, K.P. Leven#12;sh, Yu). The results are used for cooling simulations of isolated neutron stars. Both, the standard cooling and the cooling enhanced by the direct Urca process, are strongly a#11;ected by nucleon super uidity. Comparison

  8. Vapor deposition of platinum alloyed nickel aluminide coatings Z. Yu , K.P. Dharmasena, D.D. Hass, H.N.G. Wadley

    E-Print Network [OSTI]

    Wadley, Haydn

    for the thermal and oxidation protection of high temperature components used in advanced gas turbine and dieselVapor deposition of platinum alloyed nickel aluminide coatings Z. Yu , K.P. Dharmasena, D.D. Hass, H.N.G. Wadley Department of Materials Science and Engineering University of Virginia Charlottesville

  9. Energy dependence of K?, p? and Kp fluctuations in Au+Au collisions from ?sNN=7.7 to 200 GeV

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

    Adamczyk, L.

    2015-08-07

    A search for the quantum chromodynamics (QCD) critical point was performed by the STAR experiment at the Relativistic Heavy Ion Collider, using dynamical fluctuations of unlike particle pairs. Heavy ion collisions were studied over a large range of collision energies with homogeneous acceptance and excellent particle identification, covering a significant range in the QCD phase diagram where a critical point may be located. Dynamical K?, p?, and Kp fluctuations as measured by the STAR experiment in central 0–5% Au+Au collisions from center-of-mass collision energies ?sNN=7.7 to 200 GeV are presented. The observable ?dyn was used to quantify the magnitude ofmore »the dynamical fluctuations in event-by-event measurements of the K?, p?, and Kp pairs. The energy dependences of these fluctuations from central 0–5% Au+Au collisions all demonstrate a smooth evolution with collision energy.« less

  10. Test of universal rise of hadronic total cross sections based on {pi}p, Kp and pp, pp scatterings

    SciTech Connect (OSTI)

    Ishida, Muneyuki; Igi, Keiji [Department of Physics, School of Science and Engineering, Meisei University, Hino, Tokyo 191-8506 (Japan); Theoretical Physics Laboratory, RIKEN, Wako, Saitama 351-0198 (Japan)

    2009-05-01

    Recently, there have been several evidences that the hadronic total cross section {sigma}{sub tot} is proportional to Blog{sup 2}s, which is consistent with the Froissart unitarity bound. The COMPETE Collaboration has further assumed {sigma}{sub tot}{approx_equal}Blog{sup 2}(s/s{sub 0})+Z to extend its universal rise with the common values of B and s{sub 0} for all hadronic scatterings to reduce the number of adjustable parameters. It was suggested that the coefficient B was universal in the arguments of the color glass condensate of QCD in recent years. However, there has been no rigorous proof yet based only on QCD. We attempt to investigate the value of B for {pi}{sup {+-}}p, K{sup {+-}}p and pp, pp scatterings, respectively, through the search for the simultaneous best fit to the experimental {sigma}{sub tot} and {rho} ratios at high energies. The {sigma}{sub tot} at the resonance- and intermediate-energy regions has also been exploited as a duality constraint based on the special form of the finite-energy sum rule. We estimate the values of B, s{sub 0}, and Z individually for {pi}{sup {+-}}p, K{sup {+-}}p and pp, pp scatterings without using the universality hypothesis. It turns out that the values of B are mutually consistent within 1 standard deviation. It has to be stressed that we cannot obtain such a definite conclusion without the duality constraint. It is also interesting to note that the values of Z for {pi}p, Kp, and p(p)p approximately satisfy the ratio 2 ratio 2 ratio 3 predicted by the quark model. The obtained value of B for p(p)p is B{sub pp}=0.280{+-}0.015 mb, which predicts {sigma}{sub tot}{sup pp}=108.0{+-}1.9 mb and {rho}{sup pp}=0.131{+-}0.0025 at the LHC energy {radical}(s)=14 TeV.

  11. ARM - VAP Product - mergesonde1mace

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better

  12. Full band structure LDA and kp calculations of optical spin-injection F. Nastos,1 J. Rioux,1 M. Strimas-Mackey,1 Bernardo S. Mendoza,2 and J. E. Sipe1

    E-Print Network [OSTI]

    Sipe,J. E.

    Full band structure LDA and k·p calculations of optical spin-injection F. Nastos,1 J. Rioux,1 M; published 20 November 2007 We present a study of optical electron spin-injection optical orientation in the bulk semiconductors GaAs, Si, and CdSe from direct optical excitation with circularly polarized light

  13. Eight-band k·p modeling of InAs/InGaAsSb type-II W-design quantum well structures for interband cascade lasers emitting in a broad range of mid infrared

    SciTech Connect (OSTI)

    Ryczko, K.; S?k, G.; Misiewicz, J. [Institute of Physics, Wroc?aw University of Technology, Wybrze?e Wyspia?skiego 27, 50-370 Wroc?aw (Poland)

    2013-12-14

    Band structure properties of the type-II W-design AlSb/InAs/GaIn(As)Sb/InAs/AlSb quantum wells have been investigated theoretically in a systematic manner and with respect to their use in the active region of interband cascade laser for a broad range of emission in mid infrared between below 3 to beyond 10??m. Eight-band k·p approach has been utilized to calculate the electronic subbands. The fundamental optical transition energy and the corresponding oscillator strength have been determined in function of the thickness of InAs and GaIn(As)Sb layers and the composition of the latter. There have been considered active structures on two types of relevant substrates, GaSb and InAs, introducing slightly modified strain conditions. Additionally, the effect of external electric field has been taken into account to simulate the conditions occurring in the operational devices. The results show that introducing arsenic as fourth element into the valence band well of the type-II W-design system, and then altering its composition, can efficiently enhance the transition oscillator strength and allow additionally increasing the emission wavelength, which makes this solution prospective for improved performance and long wavelength interband cascade lasers.

  14. CURRICULUM VITAE ROSALYN J MORAN PhD

    E-Print Network [OSTI]

    Moran, Rosalyn

    of Computational Neuroscience - Physica D - Biological Cybernetics - Frontiers in Human Neuroscience Ad, NOVA Technology Transfer Centre, University College Dublin. Nov 2005. Invited Speaker, Campus Company Development Program, NOVA Technology Transfer Centre, University College Dublin. Sept 2006. Student Award

  15. Microsoft PowerPoint - Mace_Poster_ARM-ATrain_Comparison [Compatibility Mode]

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on darkMicroorganismsnow widely usingOverviewRepresentativeness of

  16. KP solitons and Mach reflection in shallow water

    E-Print Network [OSTI]

    Yuji Kodama

    2012-10-01

    This gives a survey of our recent studies on soliton solutions of the Kadomtsev-Petviashvili equation with an emphasis on the Mach reflection problem in shallow water.

  17. MICRON MOUSE IMAGING SYSTEM The Micron Mouse Imaging System is a Core Resource for the Moran

    E-Print Network [OSTI]

    Marc, Robert E.

    light source/power supply (K) Micron camera base and mounting arm (E) Micron custom light guide (L, amplifier, light source, monitor power cables #12;3 SYSTEM PARTS LIGHT SOURCE CAMERA AMPLIFIER Quick keyB steps Press DISP to exit CAMERA NEUTRAL DENSITY KNOB LIGHT GUIDE DO NOT TOUCH LIGHT GUIDE CONNECTOR

  18. The link between Darwin and antioxidants from olives Moran Brouk (Dr. Ayelet Fishman-supervisor)

    E-Print Network [OSTI]

    as an antioxidant for either pharmaceutical or food preparations (i.e. functional foods). Despite the great-supervisor) Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa, 32000

  19. Frequency and longitudinal trends of household care product use Rebecca E. Moran a

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    SUPERB Indoor environment d-limonene a b s t r a c t The use of household cleaning products and air infiltrating to the indoor environment to form potentially toxic secondary pollutants. Although realistic, frequencies of use of eight types of household cleaning products and air fresheners and the performance

  20. Comments from Congressman James P. Moran, 8th District of Virginia...

    Energy Savers [EERE]

    of Schnader Harrison Segal and Lewis LLP and City Attorney, Ignacio B. Pessoa, and offer my additional comments on the Tuesday, December 20th order governing future operations...

  1. Department of Energy Reply to Congressman James P. Moran | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electricLaboratory |EducationDepartment5-3:Washington, D.C.

  2. Comments from Congressman James P. Moran, 8th District of Virginia

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle (PEV)Day-June 22, 2015 | DepartmentSupporting the

  3. The weight of an assassin's mace : vulnerabilities in the US military's satellite communications and China's information warfare threat

    E-Print Network [OSTI]

    Brooks, Benjamin M

    2005-01-01

    Believing that an information Revolution of Military Affairs has occurred, the US military is currently transforming to achieve dominance over the full spectrum of deployment scenarios with a lighter, more mobile, and more ...

  4. Nitrous oxide (N?O) isotopic composition in the troposphere : instrumentation, observations at Mace Head, Ireland, and regional modeling

    E-Print Network [OSTI]

    Potter, Katherine Ellison

    2011-01-01

    Nitrous oxide (N?O) is a significant greenhouse gas and main contributor to stratospheric ozone destruction. Surface measurements of N?O mole fractions have been used to attribute source and sink strengths, but large ...

  5. The influence of N-dimethyl amino succinamic acid on the growth and development of Kalanchoe blossfeldiana, Poellnitz cv. 'Mace

    E-Print Network [OSTI]

    Warminski, Norman Charles

    1968-01-01

    , for her assistance and constant encouragement. TABLE OF CONTFNTS Chapter Page I I '. IV INTRODUCT'0!4 AND RF VIEN OF LITEPACURF NATERIALS AND NETI-!ODS RLSULTS DISCUS IDN 24 V SUlgl!ART LITERA'!URE CITED APFE!'iDI'/ VITA 30 3'I 34 41 Vl... quaterna, y a iinioniuia carbar ates v!ere reported and we. e the first comip &unde fo rr ce, ve ex't naive trials. The most active material in this group was Aran 1618 (3, 4, ZO). Few test plants, o+her than clnrysiln+has"'ms, showed lilarlred . espouse...

  6. Multiple Pedestrian Tracking using Colour and Motion Models Zhengqiang Jiang, Du Q. Huynh, William Moran, Subhash Challa and Nick Spadaccini

    E-Print Network [OSTI]

    Huynh, Du

    Multiple Pedestrian Tracking using Colour and Motion Models Zhengqiang Jiang, Du Q. Huynh, William information to track pedestrians in video sequences captured by a fixed camera. Pedestrians are firstly-based model, we extract a 4-dimensional colour histogram for each detected pedestrian window and compare

  7. SEMI-ANNUAL REPORTS FOR FREEPORT McMoran - FE DKT. NO. 13-26-LNG - ORDER

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTION J APPENDIX A ADVANCE- FE DKT.3365NO. 3600LLC -3290 |

  8. MMA Memo. No. 238 Precipitable Water at KP ---1993--1998

    E-Print Network [OSTI]

    Groppi, Christopher

    of each water molecule (mw = 18 amu), P 0 is the water vapor partial pressure at the surface, H is in K. Note that if you have a surface water vapor partial pressure measurement in hPa (a common is equal to the surface water vapor partial pressure in hPa (because T 0 is always ¸ 250­310 K

  9. Materials Data on KP(HO2)2 (SG:43) by Materials Project

    SciTech Connect (OSTI)

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  10. Spin generalization of the Calogero-Moser system and the Matrix KP equation

    E-Print Network [OSTI]

    I. Krichever; O. Babelon; E. Billey; M. Talon

    1994-11-22

    The complete solutions of the spin generalization of the elliptic Calogero Moser systems are constructed. They are expressed in terms of Riemann theta-functions. The analoguous constructions for the trigonometric and rational cases are also presented.

  11. Error Probability Bounds for Balanced Binary Relay Trees Zhenliang Zhang, Ali Pezeshki, William Moran, Stephen D. Howard, and Edwin K. P. Chong

    E-Print Network [OSTI]

    Pezeshki, Ali

    as a star architecture [1]­[15],[31], in which all sensors directly connect to the fusion center. A typical and independent sensors. The root of the tree represents a fusion center that makes the overall detection decision the sensors is aggregated into the fusion center via the intermediate relay nodes. In this context, we

  12. [2] O. Biran, S. Moran, and S. Zaks. A combinatorial characterization of the distributed 1solvable tasks. Journal of Algorithm 11, pages 420--440, 1990.

    E-Print Network [OSTI]

    Moran, Shlomo

    . Information and Computation, 105(1):132--158, July 1993. [6] A. Fekete. Asynchronous approximate agreement event e(i), associated with processor P i . This mapping should guarantee that if s is fair for i, then the run M dm (c; s) is fair for p i . By varying the way in which e(i) depends on P i , various

  13. Hydrologic and Aquatic Species Implications of the Proposed Pebble Mine, Bristol Bay, Alaska

    E-Print Network [OSTI]

    Cundy, Fiona

    2012-01-01

    causing  acid  mine  drainage   (Moran  2007).     Problem  potential  for  acid  mine  drainage,  due  to  the   high  

  14. KLab Abstracts http://vision.rutgers.edu/ Authors: Bremmer F, Kubischik M, Hoffmann K-P, Krekelberg B

    E-Print Network [OSTI]

    Krekelberg, Bart

    of saccade-onset. This magnification of the responsive region could account for the behaviorally observed

  15. Observations of PKiKP///PcP amplitude ratios and implications for Earth structure at the boundaries of

    E-Print Network [OSTI]

    Koper, Keith D.

    ; published 2 March 2004. [1] Mining of the database produced by seismic array stations of the International by the presence of partial melt and increased iron content just above the CMB. INDEX TERMS: 7203 Seismology: Body number much lower than either iron or nickel [Birch, 1964]; however, a consensus has only recently been

  16. Characterization of Class A low-level radioactive waste 1986--1990. Volume 7: Appendices K--P

    SciTech Connect (OSTI)

    Dehmel, J.C.; Loomis, D.; Mauro, J.; Kaplan, M.

    1994-01-01

    Under contract to the US Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, the firms of S. Cohen & Associates, Inc. (SC&A) and Eastern Research Group (ERG) have compiled a report that describes the physical, chemical, and radiological properties of Class-A low-level radioactive waste. The report also presents information characterizing various methods and facilities used to treat and dispose non-radioactive waste. A database management program was developed for use in accessing, sorting, analyzing, and displaying the electronic data provided by EG&G. The program was used to present and aggregate data characterizing the radiological, physical, and chemical properties of the waste from descriptions contained in shipping manifests. The data thus retrieved are summarized in tables, histograms, and cumulative distribution curves presenting radionuclide concentration distributions in Class-A waste as a function of waste streams, by category of waste generators, and regions of the United States. The report also provides information characterizing methods and facilities used to treat and dispose non-radioactive waste, including industrial, municipal, and hazardous waste regulated under Subparts C and D of the Resource Conservation and Recovery Act (RCRA). The information includes a list of disposal options, the geographical locations of the processing and disposal facilities, and a description of the characteristics of such processing and disposal facilities. Volume 1 contains the Executive Summary, Volume 2 presents the Class-A waste database, Volume 3 presents the information characterizing non-radioactive waste management practices and facilities, and Volumes 4 through 7 contain Appendices A through P with supporting information.

  17. This list does not imply DOE endorsement of the individuals or...

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

    416-969-6413 Ontario, CANADA Moran, Milton milton.moran@phifer.com 205-750-3068 AL Morris, Nick Nick.Morris@Xyleminc.com UNITED KINGDOM Morrison, Stuart stuart.morrison@clydeun...

  18. This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research

    E-Print Network [OSTI]

    Wahlberg, Niklas

    et al., 2003), insects (Mardulyn and Whitfield, 1999; Jordal et al., 2000; Von Dohlen and Moran, 2000

  19. Phylogenetics of Coenonymphina (Nymphalidae: Satyrinae) and the problem of rooting rapid radiations

    E-Print Network [OSTI]

    Wahlberg, Niklas

    et al., 2003), insects (Mardulyn and Whitfield, 1999; Jordal et al., 2000; Von Dohlen and Moran, 2000

  20. The Role of Native Riparian Vegetation in Resisting Invasion by Giant Reed, Arundo donax

    E-Print Network [OSTI]

    Palenscar, Kai

    2012-01-01

    see Quinn & Holt 2004) or biocontrol agents (Moran & Goolsbyagent for giant reed, Arundo donax (Poales: Poaceae) in North America. Biocontrol

  1. PWR FLECHT SEASET 21-rod bundle flow blockage task data and analysis report. NRC/EPRI/Westinghouse Report No. 11. Appendices K-P

    SciTech Connect (OSTI)

    Loftus, M.J.; Hochreiter, L.E.; Lee, N.; McGuire, M.F.; Wenzel, A.H.; Valkovic, M.M.

    1982-09-01

    This report presents data and limited analysis from the 21-Rod Bundle Flow Blockage Task of the Full-Length Emergency Cooling Heat Transfer Separate Effects and Systems Effects Test Program (FLECHT SEASET). The tests consisted of forced and gravity reflooding tests utilizing electrical heater rods with a cosine axial power profile to simulate PWR nuclear core fuel rod arrays. Steam cooling and hydraulic characteristics tests were also conducted. These tests were utilized to determine effects of various flow blockage configurations (shapes and distributions) on reflooding behavior, to aid in development/assessment of computational models in predicting reflooding behavior of flow blockage configurations, and to screen flow blockage configurations for future 163-rod flow blockage bundle tests.

  2. Vector k"p approach for photonic band structures Department of Physics, University of Toronto, 60 St. George Street, Toronto, Ontario, Canada M5S 1A7

    E-Print Network [OSTI]

    Sipe,J. E.

    of Toronto, 60 St. George Street, Toronto, Ontario, Canada M5S 1A7 Received 24 January 2000 We point out amplitude of stationary solutions of the Maxwell equations at frequency mk c mk. The asso- ciated electric. So an expansion of the form 4 cannot be possible. In the next section we identify the source

  3. Entropy and Energy: Toward a Definition of Physical Sustainability

    E-Print Network [OSTI]

    Hermanowicz, Slawomir W

    2005-01-01

    Perspective by Exergy Analysis. Environmental Science &Moran, M.J. (1999). Exergy Analysis, Costing and AssessmentSteward, F.R. (1988). Exergy Analysis of Thermal, Chemical,

  4. Mountain Association for Community Economic Development- Solar Water Heater Loan Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Kentucky Solar Partnership (KSP) and the Mountain Association for Community Economic Development (MACED) partner to offer low interest loans for the installation of solar water heaters. Loans...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    Mountain Association for Community Economic Development- Energy Efficient Enterprise Loan Program The Mountain Association for Community Economic Development (MACED) offers loans...

  6. Retinal Neurotransmitters Robert E. Marc

    E-Print Network [OSTI]

    Marc, Robert E.

    Retinal Neurotransmitters Robert E. Marc John Moran Eye Center University of Utah School of References: 85 Abbreviated Title: Retinal Neurotransmitters *Correspondence to: Robert E. Marc, Moran Eye-6500. Facsimile (801) 581-3357 robert.marc@hsc.utah.edu #12;Rbert E. Marc Retinal Neurotransmitters Introduction

  7. Robert E. Marc: The Structure of Vertebrate Retinas In: J Toyoda (ed.) The Retinal Basis of Vision

    E-Print Network [OSTI]

    Marc, Robert E.

    Robert E. Marc: The Structure of Vertebrate Retinas In: J Toyoda (ed.) The Retinal Basis of Vision Elsevier, Amsterdam 1998 The Structure of Vertebrate Retinas Robert E. Marc John Moran Eye Center, retinal neurons, neuronal patterning, neuronal stratification Correspondence: Robert E. Marc John Moran

  8. THEMATIC ISSUE ARTICLE: SYNTHESIS (rt9mheri1) Simulating a Model of Metabolic Closure

    E-Print Network [OSTI]

    -Bowden · Gabriel Piedrafita · Federico Mora´n · Mari´a Luz Ca´rdenas · Francisco Montero Received: 14 March 2012-Marseille Universite´, Marseille, France e-mail: acornish@imm.cnrs.fr G. Piedrafita Á F. Mora´n Á F. Montero Facultad

  9. U.S. Department of Commerce National Oceanic and Atmospheric Administration

    E-Print Network [OSTI]

    . Cochrane, P. Mace, R. Merrick, M. Miller, S. Rumsey, B. Taylor, G. Thompson, and R. Waples #12;#12;U. Rumsey, B. Taylor, G. Thompson, and R. Waples Recommendations to NOAA Fisheries: ESA Listing Criteria, P. Mace, R. Merrick, M. Miller, S. Rumsey, B. Taylor, G. Thompson, and R. Waples. 2004

  10. COBIOT-854; NO. OF PAGES 8 Please cite this article in press as: Lovley DR, Nevin KP. A shift in the current: New applications and concepts for microbe-electrode electron exchange, Curr Opin Biotechnol (2011), doi:10.1016/

    E-Print Network [OSTI]

    Lovley, Derek

    2011-01-01

    - trical power with microbial fuel cells over the last decade, some of the early optimism for power in aquatic sediments with benthic microbial fuel cells continues to be a promising application [5­8]. However, after some of the rather obvious design flaws in early microbial fuel cells were rectified, there has

  11. Een iets geredigeerde versie is verschenen in Jaarboek Overheidsfinancin 2008: K.P. Goudswaard en H. Nijboer, 'Sociale zekerheid: van verzekeren naar sparen?', in: C.A. de Kam

    E-Print Network [OSTI]

    Galis, Frietson

    wordt de efficiencywinst gezien: door gebruik te maken van individuele spaartegoeden kunnen individuen

  12. Source: K. Caminada and K.P. Goudswaard (2010), `How well is social expenditure targeted to the poor?, in: P. Saunders and R. Sainsbury (eds.), Social Security, Poverty and Social Exclusion in Rich and

    E-Print Network [OSTI]

    Galis, Frietson

    2010-01-01

    to the poor?, in: P. Saunders and R. Sainsbury (eds.), Social Security, Poverty and Social Exclusion in Rich security ABSTRACT Some countries are more effective in poverty reduction than others. What can explain these variations in effectiveness? This paper analyzes the effectiveness of social transfers in alleviating poverty

  13. genomic DNA was isolated from these centrifuged cell pellets and used for am-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    genomic DNA was isolated from these centrifuged cell pellets and used for am- plification of either changes in ruminal bacterial popula- tions. J Wood1, KP Scott,1, G Avguštin2,J Wood1 KP Scott, G

  14. DRIENERBEEKLAAN AUKEVLEERSTR

    E-Print Network [OSTI]

    Theune, Mariët

    Tennispark (TP) 65 Logica (LO) 66 BTC 68 KPMG-gebouw (KP) 72 Corridor (CO) 89 Langezijds A (LA) PLATTEGROND

  15. FYI: July 5, 1990 - Decentler 27, 1990

    E-Print Network [OSTI]

    1990-01-01

    CONTACT PERSQ"I Mike Ramirez (913) 296-3721 Depanment of Transportation Lynn George (913) 864-4942 University of Kansas Mike Ramirez (913) 296-3721 Department of Transportation Jo Ann Moran (913) 296-1290 Department of Health and Environment Jo... Ann Moran (913) 296-1290 Depanment of Health and Environment Jo Ann Moran \\913) 296-1290 Department oi Health and Environment Mike Ramirez (913) 296-3721 Dep~ntofTransportation Mike Ramirez (913) 296-3721 Dep~ntofTransponadon Mike Ramirez (913...

  16. Sulphate record from a northeast Greenland ice core over the last 1200 years based on continuous flow analysis

    E-Print Network [OSTI]

    Fischer, Hubertus

    distribution of heat, salt, and moisture, potentially driving climatic change on regional to global scales; Moran et al., 2006). In 2004, the first Integrated Ocean Drilling Program expedition to the Lomonosov

  17. Middletown Springs Town Plan Adopted September 10, 2002

    E-Print Network [OSTI]

    Brown, Gregory G.

    Middletown Springs Town Plan Adopted September 10, 2002 Select Board: Fred Bradley, Chair Robin Chesnut-Tangerman John Colvin Shirley Moyer, Secretary William Reed Planning Commission: Robert Moran.............................................................................. 11 Utilities, Facilities, and Services

  18. Mineralogy and Petrology (2007) 91: 1124 DOI 10.1007/s00710-007-0183-7

    E-Print Network [OSTI]

    Cartigny, Pierre

    2007-01-01

    to 90 km along a cold geothermal gradient (8 C=km). Unmetamor- phosed and HP metasediments show is available for mafic rocks and metasediments sub- ducted along warm geothermal gradients (Moran et al., 1992

  19. Systematic revision of Elaphoglossum (Dryopteridaceae) in French Polynesia, with the description of three new

    E-Print Network [OSTI]

    of three new species GERMINAL ROUHAN1 *, DAVID H. LORENCE2 , TIMOTHY J. MOTLEY3 , JUDITH GARRISON HANKS4 groups (sections and subsections) (Moran, Garrison-Hanks & Rouhan, 2007a). The main clades

  20. INTRODUCTION A common reproductive strategy among aquatic and marine

    E-Print Network [OSTI]

    and Strathmann, 1998; Moran and Woods, 2007; Woods and Podolsky, 2007) and on amphibian egg masses (Seymour, 1994; Seymour and Bradford, 1995; Mitchell and Seymour, 2003). For all egg masses, however, predicting transient

  1. Genealogical constructions of population models Alison M. Etheridge Thomas G. Kurtz

    E-Print Network [OSTI]

    Kurtz, Tom

    Genealogical constructions of population models Alison M. Etheridge Thomas G. Kurtz Department, Moran model, lookdown construction, genealogies, voter model, generators, stochastic equations, Lambda number of individuals in the population is used to infer the `genealogical trees' that relate those genes

  2. A Simple Self-Maintaining Metabolic System: Robustness, Autocatalysis, Bistability

    E-Print Network [OSTI]

    Piedrafita1 , Francisco Montero1 , Federico Mora´n1 , Mari´a Luz Ca´rdenas2 , Athel Cornish-Bowden2 * 1-maintaining mode, the entire network being necessary to maintain the two catalysts. Citation: Piedrafita G, Montero

  3. Max-Planck-Institut f ur Mathematik

    E-Print Network [OSTI]

    ­wave pulses in Bose­Einstein condensates, see e.g. [19, 23]. Notice that the KP equation has originally been

  4. New Environmental Science Division report provides comprehensive...

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

    solar research programs, visit the EVS website. Reference: Patton, T., L. Almer, H. Hartmann, and K.P. Smith, 2013, An Overview of Potential Environmental, Cultural, and...

  5. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    1471--2164; Other: KP1601050; ERKP695","Journal Article","AM",,"Journal Name: BMC Genomics; Journal Volume: 16; Journal Issue: 1","Oak Ridge National Laboratory (ORNL);...

  6. Bone Mineral Density, Bone Turnover, and Systemic Inflammation in Non-cirrhotics with Chronic Hepatitis C

    E-Print Network [OSTI]

    Lai, JC; Shoback, DM; Zipperstein, J; Lizaola, B; Tseng, S; Terrault, NA

    2015-01-01

    KP, Ludwig J. Chronic hepatitis. An update on terminologyet al. The prevalence of hepatitis C virus infection in thetransplantation for viral hepatitis in the United States.

  7. Striae: a potential precipitating factor for Koebner phenomenon in psoriasis?

    E-Print Network [OSTI]

    Morais, Paulo; Oliveira, Manuela; Matos, Jose

    2013-01-01

    The association between psoriasis and obesity: a systematicof vitiligo, lichen planus and psoriasis. Clin Exp Dermatol.potentially induce KP in psoriasis, vitiligo, and LP (Table

  8. .0/2 1434576+8,9 :,;=@?BAC1E D ;K;P?

    E-Print Network [OSTI]

    #19; a#14; `7q#rP_#4;`ba#6; c> ^#4;d d etsu^ta#18;ev l#19;p ^#4;w x+y{z} |}~â?¬,�tâ??*Æ?#16;â??â?¦~{ â? 

  9. Chapter 9. Chemical Equilibrium 9.1 The Nature of Chemical Equilibrium

    E-Print Network [OSTI]

    Ihee, Hyotcherl

    the equilibrium constant take a unique value for each individual che and KP: empirical equilibrium constant Law of mass action: 1) The numerical value of KC or KP of the equilibrium state or position of the reaction. #12;Law of Mass Action for Gas-Phase Reactions · A deeper study

  10. THE LATTICE OF COMPLETIONS OF AN ORDERED SET J. B. NATION AND ALEX POGEL

    E-Print Network [OSTI]

    Nation, James B.

    THE LATTICE OF COMPLETIONS OF AN ORDERED SET J. B. NATION AND ALEX POGEL Abstract. For any ordered set P, the join dense completions of P form a complete lattice KP with least element OP, the lattice of order ideals of P, and greatest element MP, the Dedekind-MacNeille completion of P. The lattice KP

  11. Appendix: Compressive Hyperspectral Imaging with Side Information

    E-Print Network [OSTI]

    Carin, Lawrence

    (k,n|-) GIG(2h0, -1 k,n, g0 - 1), (23) where GIG(x : a, b, p) is the generalized inverse Gaussian distribution: GIG(x; a, b, p) = (a/b) p 2 2Kp( ab) xp-1 exp - 1 2 (ax + b x ) , and Kp() is the modified Bessel

  12. Iterated and irreducible pion-photon exchange in nuclei Physik Department T39, Technische Universitt Mnchen, D-85747 Garching, Germany

    E-Print Network [OSTI]

    Weise, Wolfram

    calculate the contribution to the nuclear energy density functional which arises from iterated pion analytical results for the corresponding contributions to the nuclear en- ergy -interaction. The corresponding energy per proton reads E¯ p = 2 /15 2 2 -3+6 ln 2 App kp 2 with p=kp 3 /3 2 the proton density

  13. Fourier duality of quantum curves

    E-Print Network [OSTI]

    Martin Luu; Albert Schwarz

    2015-04-07

    There are two different ways to deform a quantum curve along the flows of the KP hierarchy. We clarify the relation between the two KP orbits: In the framework of suitable connections attached to the quantum curve they are related by a local Fourier duality. As an application we give a conceptual proof of duality results in 2D quantum gravity.

  14. THIELE CENTRE for applied mathematics in natural science

    E-Print Network [OSTI]

    Schierup, Mikkel Heide

    ]), or a finite dam or fluid model (Asmussen [3] , Moran [23], Stadje [28]). Furthermore, they are used in models tends to infinity in the case where the L´evy process is light-tailed and the mean is either strictly is explicitly calculated. The case of negative mean and heavy tails case is treated in Andersen [1

  15. Types of Stations and Activities at Each: 1) Short Station

    E-Print Network [OSTI]

    ) from starboard A-Frame­ Hydro Team · Fe CTD cast (1) at some locations - Wu · VPR cast (1) from stern A camera deployed from ice-Cooper/Grebmier team · If necessary, small boat work to access ice- Gradinger small boat ­ Moran At 5-6 Open Water Stations: · Van Veen Grab sampling from stern A-frame, 3/8" wire, 3

  16. DNA BARCODING DNA barcoding exposes a case of mistaken identity

    E-Print Network [OSTI]

    Schuettpelz, Eric

    the Victorian era (Allen 1969; Moran 2004) and has recently enjoyed renewed popularity due, in part, and xeric-adapted members of the Pteridaceae (including the cryptogrammoids, adiantoids, and cheilanthoids high temperatures, bright light, and alkaline con- ditions, making them well adapted to many landscape

  17. IDENTIFYING THE USAGE PATTERNS OF METHYL TERT-BUTYL ETHER (MTBE) AND OTHER OXYGENATES IN GASOLINE USING GASOLINE

    E-Print Network [OSTI]

    IDENTIFYING THE USAGE PATTERNS OF METHYL TERT-BUTYL ETHER (MTBE) AND OTHER OXYGENATES IN GASOLINE USING GASOLINE SURVEYS By Michael J. Moran, Rick M. Clawges, and John S. Zogorski U.S. Geological Survey 1608 Mt. View Rapid City, SD 57702 Methyl tert-butyl ether (MTBE) is commonly added to gasoline

  18. RELATIONS BETWEEN THE DETECTION OF METHYL TERT-BUTYL ETHER (MTBE) IN SURFACE AND GROUND WATER AND ITS CONTENT IN GASOLINE

    E-Print Network [OSTI]

    AND ITS CONTENT IN GASOLINE By Michael J. Moran, Mike J. Halde, Rick M. Clawges and John S. Zogorski U in the United States as an octane enhancer and oxygenate in gasoline. Octane enhancement began in the late 1970's with the phase-out of tetraethyl lead from gasoline. The use of oxygenates was expanded

  19. COLLEGE OF WILLIAM & MARY ATHLETIC DEPARTMENT ORGANIZATION CHART Athletic Director

    E-Print Network [OSTI]

    Lewis, Robert Michael

    Smith Claudette Canady Myrtle Cox Support Staff Jaime LaBianco- Business Managers Patricia Moran Kyle. of Compliance James Cullimore Shelfer Peace George Williams Derek J Melvin Vacant Tommy Bricker Derek Melvin Coach Maria Caro Assistant M/W Golf Coach Ed Teer Head Women's Gymnastics Coach Mary Lewis Assistant

  20. Fast Bayesian reconstruction of chaotic dynamical systems via extended Kalman filtering Renate Meyer1,

    E-Print Network [OSTI]

    Christensen, Nelson

    compare the new algorithm to the Gibbs sampler using the logistic, the tent, and the Moran-Ricker maps the parameters because they do not take into account that the values of the ``inde- pendent'' variable in 14 to generate a sample from the joint posterior distribution of unknown parameters and unknown

  1. ENERGY CONVERSION Spring 2011

    E-Print Network [OSTI]

    Bahrami, Majid

    , 5th Edition Michael J. Moran and Howard N. Shapiro, John Wiley and Sons Inc., New York, NY, 2004, John Willey 2010. 3) Alternative Energy Systems and Applications, by B.K. Hodge, John Willey 2010. 41 ENSC 461 ENERGY CONVERSION Spring 2011 Instructor: Dr. Majid Bahrami 4372 Email

  2. Microbial invasion of the Caribbean by an Indo-Pacific coral zooxanthella

    E-Print Network [OSTI]

    Microbial invasion of the Caribbean by an Indo-Pacific coral zooxanthella D. Tye Pettaya,b,1 , Drew Institutes of Energy and the Environment, University Park, PA 16802 Edited by Nancy A. Moran, University functions are poorly documented (6). Microbial invasions are difficult to detect, especially among free

  3. Basing Cryptographic Protocols on Tamper-Evident Seals In this paper we attempt to formally study two very intuitive physical models: sealed envelopes and

    E-Print Network [OSTI]

    Naor, Moni

    Basing Cryptographic Protocols on Tamper-Evident Seals Tal Moran Moni Naor Abstract In this paper are called "tamper-evident seals". Another physical object with this property is the "scratch-off card", often used in lottery tickets. We consider three variations of tamper-evident seals, and show that under

  4. Information Processing: Amacrine Cells Robert E. Marc

    E-Print Network [OSTI]

    Marc, Robert E.

    Cover Information Processing: Amacrine Cells Robert E. Marc Department of Ophthalmology John A. Moran Eye Center 65 Mario Capecchi Dr University of Utah Salt Lake City, UT 84132 robert.marc@hsc.utah.edu Robert E. Marc :: Chapter 197 :: Information Processing: Amacrine Cells :: page 1 of 34 #12;Keywords

  5. Bryan William Jones, Ph.D. Marc Laboratory

    E-Print Network [OSTI]

    Marc, Robert E.

    Bryan William Jones, Ph.D. Marc Laboratory John A. Moran Eye Center Dept. Ophthalmology University (IgG) library has been produced by the Marc Lab at the University of Utah, targeting over 60 types;MC signature collapse & recovery in Retinal Detachment Cat Retina (Marc, Murray, Fisher, Lindberg

  6. Injury and Repair: Retinal Remodeling Robert E. Marc

    E-Print Network [OSTI]

    Marc, Robert E.

    Injury and Repair: Retinal Remodeling Robert E. Marc Department of Ophthalmology John A. Moran Eye Center 65 Mario Capecchi Dr University of Utah Salt Lake City, UT 84132 robert.marc@hsc.utah.edu Keywords photoreceptors In press Elsevier Encyclopedia of the Eye Robert E. Marc :: Chapter 220 :: Injury and Repair

  7. Journal of Animal Ecology 2007

    E-Print Network [OSTI]

    Engen, Steinar

    on the dynamics of central European great and blue tit popula- tions. This generates synchronous fluctuations Ecological Society Blackwell Publishing Ltd The extended Moran effect and large-scale synchronous, Bauernstrasse 14, D-38162 Cremlingen, Germany Summary 1. Synchronous fluctuations of geographically separated

  8. GENERAL TECHNICAL REPORT PSW-GTR-245 Spatiotemporal Distribution Patterns of

    E-Print Network [OSTI]

    in Northern Mexico1 Gustavo Pérez-Verdin2 , M. A. Márquez-Linares3 , A. Cortes-Ortiz3 , and M. Salmerón of forest fires in Durango, one of the most affected States in Mexico, was conducted. The Moran's index, Mexico; Seasonality, Geographically Weighted Regression. Introduction In Mexico, most forest fires occur

  9. TOWARDS ESTIMATING TOTAL ECONOMIC VALUE

    E-Print Network [OSTI]

    Bateman, Ian J.

    TOWARDS ESTIMATING TOTAL ECONOMIC VALUE OF FORESTS IN MEXICO by Neil Adger Katrina Brown Raffaello OF FORESTS IN MEXICO by Neil Adger Katrina Brown Raffaello Cervigni Dominic Moran Centre for Social and SEDESOL for their assistance whilst in Mexico, and David Pearce and Kerry Turner for comments on earlier

  10. Fall 2015 BOSTONIA airway and sends it to a lab

    E-Print Network [OSTI]

    Spence, Harlan Ernest

    / BY BARBARA MORAN most cancer deaths in the United States. According to the National Cancer Institute it in a limited number of medical centers in the United States to gather feedback on how the test is used and its inter- est to NASA since many astronauts have lost bone mass, at a rate of about one percent per month

  11. Postdoctoral position in microfluidics for life and medical sciences at Technion -Israel Institute of Technology

    E-Print Network [OSTI]

    Rimon, Elon

    Postdoctoral position in microfluidics for life and medical sciences at Technion - Israel Institute of Technology The Microfluidic Technologies Laboratory at Technion, led by Prof. Moran Bercovici, is seeking of novel bio-microfluidic tools and assays. The Microfluidic Technologies Laboratory (microfluidics

  12. Computer Science Department Technion, IIT Algorithms in Computational Biology 236522

    E-Print Network [OSTI]

    Beimel, Amos

    Computer Science Department Technion, IIT Algorithms in Computational Biology ­ 236522 Moed A Exam Spring 2007, 24.9.07 Lecturer: Shlomo Moran TA: Ilan Gronau - Exam Duraion: 3 hours - The Exam has 3 structure can be used to answer the desired queries. 2. (23 pts) Denote by Si the sequence S after deletion

  13. Journal of Animal Ecology 2005

    E-Print Network [OSTI]

    Trexler, Joel C.

    Journal of Animal Ecology 2005 © 2005 British Ecological Society Blackwell Publishing, Ltd Everglades, Moran effect, spatial synchrony. Journal of Animal Ecology (2005) doi: 10.1111/j.1365-mail: cruetz@sigmaxi.org #12;2 C. R. Ruetz et al. © 2005 British Ecological Society, Journal of Animal Ecology

  14. A compact proton spectrometer for measurement of the absolute DD proton spectrum from which yield and R are determined in thin-shell inertial-confinement-fusion

    E-Print Network [OSTI]

    . Landen,3 M. J. Moran,3 R. A. Zacharias,3 J. D. Kilkenny,4 and A. Nikroo4 1 Plasma Science and Fusion Energetics, University of Rochester, Rochester, New York 14623, USA 3 Lawrence Livermore National Laboratory and implemented using a linear accelerator and applied to experiments at the OMEGA laser facility and the National

  15. VOLUME 37 MARCH 1998J O U R N A L O F A P P L I E D M E T E O R O L O G Y 1998 American Meteorological Society 241

    E-Print Network [OSTI]

    Liou, K. N.

    - tistics were obtained by Mace (1997) based on the 94- GHz radar returns data. During a number of field ex multilayer cirrus cloud systems using AVHRR data. It is based on the physical properties of the AVHRR 0.63- m ground-based lidar and radar im- ages, balloon-borne replicator data, and NCAR­CLASS humidity soundings

  16. The following are considered prohibited articles and are prohibited at SRS and its facilities unless in the possession of a person who has obtained specific authorization for them

    E-Print Network [OSTI]

    Georgia, University of

    unless in the possession of a person who has obtained specific authorization for them: · weapons (cross-bows, bows and arrows, martial arts weapons such as butterfly knives, other fixed blade knives not intended, vials and pipes designed to smoke hashish or marijuana. · tear gas, chemical mace, and devices

  17. COGNITIVE NEUROSCIENCE Stimulus duration and diversity do not reverse the

    E-Print Network [OSTI]

    the well-established basic-level entry point for object repre- sentation, Mace et al. (2009) used a go-level categorization has long been thought to be the entry level for object representations. However, this view is now processing scheme for visual stimuli, with the basic level as an entry step to reach a more abstract

  18. Economic Analysis for Ecosystem Service Assessments

    E-Print Network [OSTI]

    Bateman, Ian J.

    1 Economic Analysis for Ecosystem Service Assessments by Ian Bateman, Georgina Mace, Carlo Fezzi, Giles Atkinson and Kerry Turner CSERGE Working Paper EDM 10-10 #12;2 Economic Analysis for Ecosystem Turneri,2 i. Centre for Social and Economic Research on the Global Environment (CSERGE), School

  19. C h d Heterogeneity of A d h h Deficiency Lucia Morandi, MD,* Rita Barresi, PhD,* Claudia Di Blasi, PhD,* Daniel Jung, PhD,?

    E-Print Network [OSTI]

    Campbell, Kevin P.

    ,* Renato Mantegazza, MD,* Carlo Antozzi, MD,* Laura Jarre, MD,$ Antonella Pini, MD,S Giuseppe Gobbi, MD, Mantegazza R, Antozzi C, Jarre L, Pini A, Gobbi G, Bianchi C, Cornelio F, Campbell KP, Mora M. Clinical

  20. Algebraic K-Theory and Topological Spaces Michael Paluch (mike@math.ist.utl.pt)

    E-Print Network [OSTI]

    -p-q(X) and Hp(X; Kp) CHp(X), where CHp(X) is the Chow group of codimension p-cycles on X. For p = 1 the sheaf K1

  1. Climate Change 2001: The Scientific Basis

    Office of Scientific and Technical Information (OSTI)

    Rotstayn, T.L. Schneider, U. Schumann, S.E. Schwartz, M.D. Schwarzkopf, K.P. Shine, S. Smith, D.S. Stevenson, F. Stordal, I. Tegen, Y. Zhang Review Editors F. Joos, J. Srinivasan...

  2. Appendix E References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    P.J.W.; Davis, L.R.; Keyes, J.; Baumgartner, D.J.; and George, K.P. 2003. Dilution Models for Effluent Discharges. 4th Edition (Visual Plumes). EPA600R-03025. March....

  3. Algorithmic Construction of Efficient Fractional Factorial Designs With Large Run Sizes

    E-Print Network [OSTI]

    Xu, H Q

    2007-01-01

    M. (2003), Theory and Construction Methods for Large Regular238. Chen, C. L. (1991), “Construction of Some Binary LinearMitchell, T. J. (1967), “The Construction of Saturated 2 k?p

  4. Quasilinear dynamics of KdV-type equations

    E-Print Network [OSTI]

    Harrop-Griffiths, Benjamin Hilton

    2015-01-01

    We first use Bernstein’s inequality at the low frequency N ,using the Cauchy-Schwarz inequality, kP N (u &N u &N )k l p> p 2 ? 1 in the last inequality. The estimate then follows

  5. Accurately specifying storm-time ULF wave radial diffusion in the radiation belts

    E-Print Network [OSTI]

    Dimitrakoudis, Stavros; Balasis, Georgios; Papadimitriou, Constantinos; Anastasiadis, Anastasios; Daglis, Ioannis A

    2015-01-01

    Ultra-low frequency (ULF) waves can contribute to the transport, acceleration and loss of electrons in the radiation belts through inward and outward diffusion. However, the most appropriate parameters to use to specify the ULF wave diffusion rates are unknown. Empirical representations of diffusion coefficients often use Kp; however, specifications using ULF wave power offer an improved physics-based approach. We use 11 years of ground-based magnetometer array measurements to statistically parameterise the ULF wave power with Kp, solar wind speed, solar wind dynamic pressure and Dst. We find Kp is the best single parameter to specify the statistical ULF wave power driving radial diffusion. Significantly, remarkable high energy tails exist in the ULF wave power distributions when expressed as a function of Dst. Two parameter ULF wave power specifications using Dst as well as Kp provide a better statistical representation of storm-time radial diffusion than any single variable alone.

  6. Office of the Chief Financial Officer Annual Report 2009

    E-Print Network [OSTI]

    Fernandez, Jeffrey

    2010-01-01

    KJ05 KP15 Advanced Technology R&D Nuclear Theory MaterialsAdvanced Technology R&D Heavy-Ion Physics Nuclear Theory LowTechnology Life Sciences Materials Sciences Nuclear Sciences

  7. The dynamics of Kerguelen Plateau magma evolution: New insights from major element, trace element and Sr isotope microanalysis of plagioclase hosted in Elan

    E-Print Network [OSTI]

    Sciences, University of Durham, Durham DH1 3LE, UK c Chemistry Division, Nuclear and Radiochemistry, Los geologically short spans of time (Coffn and Eldholm, 1994; Duncan, 2002). The submarine Kerguelen Plateau (KP

  8. Köebner phenomenon induced by cupping therapy in a psoriasis patient

    E-Print Network [OSTI]

    Yu, Rui-xing; Hui, Yun; Li, Cheng-rang

    2013-01-01

    The pathogenesis of KP in psoriasis and other diseases isto cupping therapy in a psoriasis patient. To our knowledge,R K. The biology of psoriasis. An experimental study of the

  9. Scientific Discovery through Advanced Computing (SciDAC-3) Partnership...

    Office of Scientific and Technical Information (OSTI)

    (United States) Publication Date: 2014-01-15 OSTI Identifier: 1147164 Report Number(s): ORNLTM--201421 R&D Project: KP1703020 DOE Contract Number: AC05-00OR22725 Resource Type:...

  10. Biodiversity and Extinction Patterns of Chondrichthyes at the Cretaceous-Paleogene Boundary, Central Texas 

    E-Print Network [OSTI]

    Janus, Tracey

    2011-08-04

    The Cretaceous-Paleogene (KP) mass extinction is the second largest mass extinction in the history of the world with over 70% of known marine and terrestrial species suffering extinction in that event. One of the most ...

  11. Higher Spin Lifshitz Theories and the KdV-Hierarchy

    E-Print Network [OSTI]

    Beccaria, M; Gutperle, M; Li, Y; Macorini, G

    2015-01-01

    and Higher Spin Algebra,” Commun. Math. Phys. 128 (1990)the nonlinear W(KP) algebra,” Commun. Math. Phys. 158 (1993)algebras and equations of Korteweg-de Vries type,” J. Sov. Math.

  12. Fire Behavior Modeling - Experiment on Surface Fire Transition to the Elevated Live Fuel

    E-Print Network [OSTI]

    Omodan, Sunday

    2015-01-01

    of FDS to recognize two fuels of different materials in theFire Behavior Prediction and Fuel Modeling System, BURN -K.P. Combustion of forest fuels in Forest Fire: Control and

  13. Spin-on-doping for output power improvement of silicon nanowire array based thermoelectric power generators

    SciTech Connect (OSTI)

    Xu, B., E-mail: bin.xu09@imperial.ac.uk; Fobelets, K. [Department of Electrical and Electronic Engineering, Imperial College London, Exhibition Road, SW7 2BT London (United Kingdom)

    2014-06-07

    The output power of a silicon nanowire array (NWA)-bulk thermoelectric power generator (TEG) with Cu contacts is improved by spin-on-doping (SOD). The Si NWAs used in this work are fabricated via metal assisted chemical etching (MACE) of 0.01–0.02 ? cm resistivity n- and p-type bulk, converting ~4% of the bulk thickness into NWs. The MACE process is adapted to ensure crystalline NWs. Current-voltage and Seebeck voltage-temperature measurements show that while SOD mainly influences the contact resistance in bulk, it influences both contact resistance and power factor in NWA-bulk based TEGs. According to our experiments, using Si NWAs in combination with SOD increases the output power by an order of 3 under the same heating power due to an increased power factor, decreased thermal conductivity of the NWA and reduced Si-Cu contact resistance.

  14. Using a theory of planned behavior approach to assess principals' Professional intentions to promote diversity awareness beyond the level recommended by their district 

    E-Print Network [OSTI]

    Landeck, Edith Suzanne

    2009-05-15

    Paola and Tschannen-Moran (2003) state ?as the nation seeks significant reforms in education through standards and accountability, it increasingly looks to principals? as there is a general belief that good 11 school principals are the cornerstones of good... principal; persons seeking the principalship must couple mastery of these elements with an additional quality for the school to be successful. These authors define this additional quality as purpose; other authors refer to this extra element as: ?care...

  15. Clinical and Experimental Optometry 88.5 September 2005 Retinal remodelling Jones, Watt and Marc

    E-Print Network [OSTI]

    Marc, Robert E.

    and Marc OPTOMETRY C L I N I C A L A N D E X P E R I M E N T A L Clin Exp Optom 2005; 88: 5: 282D Robert E Marc PhD Moran Eye Center, School of Medicine, University of Utah, Salt Lake City, USA Submitted and Experimental Optometry 88.5 September 2005 283 Retinal remodelling Jones, Watt and Marc dystrophies

  16. Essays in econometrics

    E-Print Network [OSTI]

    Oryshchenko, Vitaliy

    2011-03-15

    businesses via learning, imitation and other routes, with empirical results on spillovers being quite mixed (Blomstro¨m and Kokko, 1998; Go¨rg and Greenaway, 2001; Moran, Graham, and Blomstro¨m, 2005; Hu, 2004; Singh, 2004). The possibility of knowledge... spillovers from multinationals to indigenous enterprises is tightly linked to the type of training offered to employees of those firms. Local enter- prises may benefit from knowledge spillovers as trained employees move from foreign to local firms...

  17. ARM - VAP Product - mmcrmode02v0061cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace Documentation Data

  18. ARM - VAP Product - mmcrmode05v0011cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace Documentation

  19. ARM - VAP Product - mmcrmode1bl200511041cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace

  20. ARM - VAP Product - mmcrmode3ge200606161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth

  1. Defect level characterization of silicon nanowire arrays: Towards novel experimental paradigms

    SciTech Connect (OSTI)

    Carapezzi, Stefania; Castaldini, Antonio; Cavallini, Anna

    2014-02-21

    The huge amount of knowledge, and infrastructures, brought by silicon (Si) technology, make Si Nanowires (NWs) an ideal choice for nano-electronic Si-based devices. This, in turn, challenges the scientific research to adapt the technical and theoretical paradigms, at the base of established experimental techniques, in order to probe the properties of these systems. Metal-assisted wet-Chemical Etching (MaCE) [1, 2] is a promising fast, easy and cheap method to grow high aspect-ratio aligned Si NWs. Further, contrary to other fabrication methods, this method avoids the possible detrimental effects related to Au diffusion into NWs. We investigated the bandgap level diagram of MaCE Si NW arrays, phosphorous-doped, by means of Deep Level Transient Spectroscopy. The presence of both shallow and deep levels has been detected. The results have been examined in the light of the specificity of the MaCE growth. The study of the electronic levels in Si NWs is, of course, of capital importance in view of the integration of Si NW arrays as active layers in actual devices.

  2. Detection of the Transverse Proximity Effect: Radiative Feedback from Bright QSOs

    E-Print Network [OSTI]

    T. S. Goncalves; C. C. Steidel; M. Pettini

    2007-11-26

    Measuring the response of the intergalactic medium to a blast of ionizing radiation allows one to infer the physical properties of the medium and, in principle, the lifetime and isotropy of the radiating source. The most sensitive such measurements can be made if the source of radiation is near the line of sight to a bright background QSO. We present results based on deep Keck/HIRES observations of the QSO triplet KP76, KP77 and KP78 at z ~2.5, with separations of 2-3 arcmin on the plane of the sky. Using accurate systemic redshifts of the QSOs from near-IR spectroscopy, we quantify the state of the IGM gas in the proximity regions where the expected ionizing flux from the foreground QSOs exceeds that of the metagalactic background by factors of 10-200, assuming constant and isotropic emission. Based on the unusual ionization properties of the absorption systems with detected HI, CIV, and OVI, we conclude that the gas has been significantly affected by the UV radiation from the nearby QSOs. Aided by observations of the galaxy density near the foreground QSOs, we discuss several effects that may explain why the transverse proximity effect has eluded most previous attempts to detect it. Our observations suggest that the luminosities of KP76 and KP77 have remained comparable to current values over timescales of, respectively, Delta t > 25 Myr and 16 Myr radiation from either QSO was significantly anisotropic during these intervals.

  3. Dynamical mass generation in unquenched QED using the Dyson-Schwinger equations

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

    K?z?lersü, Ayse; Sizer, Tom; Pennington, Michael R.; Williams, Anthony G.; Williams, Richard

    2015-03-13

    We present a comprehensive numerical study of dynamical mass generation for unquenched QED in four dimensions, in the absence of four-fermion interactions, using the Dyson-Schwinger approach. We begin with an overview of previous investigations of criticality in the quenched approximation. To this we add an analysis using a new fermion-antifermion-boson interaction ansatz, the Kizilersu-Pennington (KP) vertex, developed for an unquenched treatment. After surveying criticality in previous unquenched studies, we investigate the performance of the KP vertex in dynamical mass generation using a renormalized fully unquenched system of equations. This we compare with the results for two hybrid vertices incorporating themore »Curtis-Pennington vertex in the fermion equation. We conclude that the KP vertex is as yet incomplete, and its relative gauge-variance is due to its lack of massive transverse components in its design.« less

  4. Dynamical mass generation in unquenched QED using the Dyson-Schwinger equations

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

    Kizilersu, Ayse; Sizer, Tom; Pennington, Michael R.; Williams, Anthony G.; Williams, Richard

    2015-03-01

    We present a comprehensive numerical study of dynamical mass generation for unquenched QED in four dimensions, in the absence of four-fermion interactions, using the Dyson-Schwinger approach. We begin with an overview of previous investigations of criticality in the quenched approximation. To this we add an analysis using a new fermion-antifermion-boson interaction ansatz, the Kizilersu-Pennington (KP) vertex, developed for an unquenched treatment. After surveying criticality in previous unquenched studies, we investigate the performance of the KP vertex in dynamical mass generation using a renormalized fully unquenched system of equations. This we compare with the results for two hybrid vertices incorporating the Curtis-Pennington vertex in the fermion equation. We conclude that the KP vertex is as yet incomplete, and its relative gauge-variance is due to its lack of massive transverse components in its design.

  5. Production of K?K? pairs in proton-proton collisions below the ? meson threshold

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

    Ye, Q. J.; Hartmann, M.; Chiladze, D.; Dymov, S.; Dzyuba, A.; Gao, H.; Gebel, R.; Hejny, V.; Kacharava, A.; Lorentz, B.; Mchedlishvili, D.; Merzliakov, S.; Mielke, M.; Mikirtytchiants, S.; Ohm, H.; Papenbrock, M.; Polyanskiy, A.; Serdyuk, V.; Stein, H. J.; Ströher, H.; Trusov, S.; Valdau, Yu.; Wilkin, C.; Wüstner, P.

    2013-06-01

    The pp?ppK?K? reaction was measured below the ? threshold at a beam energy of 2.568 GeV using the COSY-ANKE magnetic spectrometer. By assuming that the four-body phase space is distorted only by the product of two-body final-state interactions, fits to a variety of one-dimensional distributions permit the evaluation of differential and total cross sections. The shapes of the distributions in the Kp and Kpp invariant masses are reproduced only if the K?p interaction is even stronger than that found at higher energy. The cusp effect in the K?K? distribution at the K?K¯¯¯? threshold is much more clear and some evidence is also found for coupling between the K?p and K¯¯¯?n channels. However, the energy dependence of the total cross section cannot be reproduced by considering only a simple product of such pairwise final-state interactions.

  6. On the acceleration potential in perfect fluid flow 

    E-Print Network [OSTI]

    Maestri, Raymond Rudolph

    1960-01-01

    number space. COMMENT: This theorem is tacitly understood. in this and similar discourses. It needs explicit formulation for the purposes of the following arguments. THEOREM ): If '7X U 0) V P 6. (0 U 3 )& then PROOF: ~8) Ug Uo ~P . V R 2 2 E... LEMMA 2& If $(3) ~ 0 as ( R Bp (Rp& Kp) then P ~ -; gR E' Kp 19 This lemma follows from the definition of p and from (12). 0 The conjoint of lemma 1, lemma 2, and theorem 2 states; (() - Uo ) )& Uo . VR c 0- 2 U~ Uo ? 2 ~P ) $ pP $b R Q. E. D...

  7. Dynamic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas with superthermal electrons and positrons

    SciTech Connect (OSTI)

    Saha, Asit E-mail: prasantachatterjee1@rediffmail.com; Pal, Nikhil; Chatterjee, Prasanta E-mail: prasantachatterjee1@rediffmail.com

    2014-10-15

    The dynamic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas with superthermal electrons and positrons has been investigated in the framework of perturbed and non-perturbed Kadomtsev-Petviashili (KP) equations. Applying the reductive perturbation technique, we have derived the KP equation in electron-positron-ion magnetoplasma with kappa distributed electrons and positrons. Bifurcations of ion acoustic traveling waves of the KP equation are presented. Using the bifurcation theory of planar dynamical systems, the existence of the solitary wave solutions and the periodic traveling wave solutions has been established. Two exact solutions of these waves have been derived depending on the system parameters. Then, using the Hirota's direct method, we have obtained two-soliton and three-soliton solutions of the KP equation. The effect of the spectral index ? on propagations of the two-soliton and the three-soliton has been shown. Considering an external periodic perturbation, we have presented the quasi periodic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas.

  8. Dr. Munawar Saleem Ahmad Passport number: TP1158651

    E-Print Network [OSTI]

    Jurat-Fuentes, Juan Luis

    : October 28, 1979 Marital Status: Married NIC No.: 33202-4576865-1 Domicile: Jhang (Punjab, Pakistan University, Mansehra, KP, Pakistan. Research & Teaching (Life Sciences) Permanent Address Village and Post office LangShumali, Tehsile and District Jhang, Punjab, Pakistan. Experience Working as postdoc fellow

  9. Current Experiments in Elementary Particle Physics (September 1989)

    E-Print Network [OSTI]

    Wohl, C.G.

    2010-01-01

    LBL) CERN-NA-036 FOA, L. (Pisa U) CERN-NA-001 G U B L E R ,U) TRIUMF-182 FOA, L. (Pisa U & INFN) CERN-NA-029 GULMEZ,121 P R E T E , T.DEL (Pisa U) CERN-R-210 PRETZL, K.P. (

  10. the french LOFAR consortium M. Tagger, P. Zarka + 30 participants

    E-Print Network [OSTI]

    Meyer-Vernet, Nicole

    and exchange of data #12;solar physics · expertise in Nançay/LESIA (Meudon) in solar radio interferometry the existing DAM array · + local data center, training, etc. · modest additional cost / standard station with the Nançay Radio Heliograph · participation in the new solar KP #12;transients · planets and exoplanets (P

  11. Joule heating at high latitudes

    SciTech Connect (OSTI)

    Foster, J.C.; St.-Maurice, J.; Abreu, V.J.

    1983-06-01

    High latitude Joule heating has been calculated from simultaneous observations of the electric field magnitude and the Pedersen conductivity calculated from individual measurements of the ion drift velocity and particle precipitation observed over the lifetime of the AE-C satellite. The data were sorted by latitude, local time, hemisphere, season, and Kp index and separate averages of the electric field magnitude, Pedersen conductivity and Joule heating was prepared. Conductivities produced by an averaged seasonal solar illumination were included with those calculated from the particle precipitation. We found that high-latitude Joule heating occurs in a roughly oval pattern and consists of three distinct heating regions: the dayside cleft, the region of sunward convection at dawn and dusk, and the midnight sector. On the average, heating in the cleft and dawn-dusk regions contributes the largest heat input. There is no apparent difference between hemispheres for similar seasons. Hemisphere averaged Joule heating at equinox amounts to approximately 25 GW for Kp = 1 conditions, 85G GW for Kp = 4, and varies linearly as a function of Kp. The Joule heat input is 50% greater during the summer than during winter primarily due to the increased conductivity caused by solar production.

  12. A COST-EFFECTIVE DIGITAL FORENSICS INVESTIGATION MODEL

    E-Print Network [OSTI]

    Overill, Richard E.

    i #12;ii #12;Chapter 1 A COST-EFFECTIVE DIGITAL FORENSICS INVESTIGATION MODEL R.E. Overill, M. Kwan, K.P. Chow, P. Lai and F. Law Abstract Computers operate at discrete points in time and hence digital the perspective of a digital investigation, it is the duty of digital investigators or forensic examiners

  13. Research article Tele-operated climbing and mobile service

    E-Print Network [OSTI]

    Chen, Sheng

    and maintenance in nuclear industry B.L. Luk and K.P. Liu Department of Manufacturing Engineering and Engineering in the field of nuclear industry. Design/methodology/approach ­ Describes nuclear electric robot operator (NERO in a typical nuclear plant, though, given that they are primarily tailor-made, they are still too expensive

  14. IL/EBP EducatIon The team space clearly documents behaviors

    E-Print Network [OSTI]

    Kay, Mark A.

    Space was used as platform for teaching and discussion on rounds. Designed to improve Information Lit the Google groups platform by an attending and medical librarian (authors KP and LM) who lead Infor- mation compare to revascularization in terms of car- diovascular mortality? " attEndIng: "I am glad you posted

  15. Proceedings of ICRC 2001: 4056 c Copernicus Gesellschaft 2001 Geomagnetic cutoff Penumbra structure: Approach by

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    for a particular neutron monitor by averaging these functions over local times and over the Kp indices latitude neutron monitor station Oulu (65.05o N 25.47o E) for different values of computation steps R on the subject can be found, e.g. in (Smart et al., 2000). Penumbra structure is usually described as a system

  16. HIGH-RESOLUTION LAND/ICE IMAGING USING SEASAT SCATTEROMETER MEASUREMENTS

    E-Print Network [OSTI]

    Long, David G.

    1, P. J. Hardin2 Electrical and Computer Engineering Department, 'Geography Department Brigham Young sensing systems because of their proven ability to make all-weather measurements of vector winds over on an ir- regular grid. The U' measurements were noisywith a normalized standard deviation (KP)of 4% to 50

  17. Predicting Forage Nutritive Value Using an In Vitro Gas Production Technique and Dry Matter Intake of Grazing Animals Using n-Alkanes 

    E-Print Network [OSTI]

    Aguiar, Andre D.

    2011-08-08

    of fermentation parameters of the forage and obtain fractional digestion rate (kd) values to predict total digestible nutrients (TDN). The best nonlinear model to describe the IVGP values of the forages was the two-pool logistic equation. The passage rate (kp...

  18. The George Washington University Washington, D.C.

    E-Print Network [OSTI]

    Everstine, Gordon C.

    ­ Main Campus References: Elasticity in Engineering Mechanics, third edition, by A.P. Boresi, K.P. Chong (Spring Break), April 30 (designated Monday) Final Exam: May 7 Description: Introduction to Cartesian elasticity problems; to apply the fundamental equations by solving elementary elasticity problems. Grading

  19. THE CLASSIFICATION OF DEHN SURGERIES ON 2-BRIDGE KNOTS

    E-Print Network [OSTI]

    Brittenham, Mark

    THE CLASSIFICATION OF DEHN SURGERIES ON 2-BRIDGE whether a given surgery on a 2-bridge knot is * *reducible, toroidal, Seifert fibered, or hyperbolic are non-hyperbolic. Let Kp=q be a 2-bridge* * knot associated to the rational number p=q. When p 1

  20. THE CLASSIFICATION OF DEHN SURGERIES ON 2-BRIDGE KNOTS

    E-Print Network [OSTI]

    Brittenham, Mark

    THE CLASSIFICATION OF DEHN SURGERIES ON 2-BRIDGE KNOTS Mark Brittenham and Ying-Qing Wu Abstract. We will determine whether a given surgery on a 2-bridge knot is reducible, toroidal, Seifert bered-hyperbolic. Let Kp=q be a 2-bridge knot associated to the rational number p=q. When p 1 mod q, K is a torus knot

  1. Confirmation of the genetic association of CTLA4 and PTPN22 with ANCA-associated vasculitis

    E-Print Network [OSTI]

    Carr, Edward J.; Niederer, Heather A.; Williams, Julie; Harper, Lorraine; Watts, Richard A.; Lyons, Paul A.; Smith, Kenneth G. C.

    2009-12-01

    JM, Timms E, Wakeham A, Shahinian A, Lee KP, Thompson CB, Griesser H, Mak TW: Lymphoproliferative disorders with early lethality in mice deficient in Ctla-4. Sci- ence (New York, NY) 1995, 270(5238):985-988. 20. Tivol EA, Borriello F, Schweitzer AN...

  2. THE LATTICE OF COMPLETIONS OF AN ORDERED SET J. B. NATION AND ALEX POGEL

    E-Print Network [OSTI]

    Nation, James B.

    THE LATTICE OF COMPLETIONS OF AN ORDERED SET J. B. NATION AND ALEX POGEL Abstract. For any ordered set P, the join dense completions of P form a complete lattice K(P) with least element O(P), the lattice of order ideals of P, and greatest element M(P), the Dedekind­MacNeille completion of P

  3. PREPARED FOR THE U.S. DEPARTMENT OF ENERGY, UNDER CONTRACT DE-AC02-76CH03073

    E-Print Network [OSTI]

    nonlinear dependencies among observed plasma and electromagnetic field variables in the coupled solar wind the nonlinear dynamics underlying the time evolution of the Dst and Kp geomagnetic indices, given solar wind dependencies, the degree of nonlinearity, and the rate of information loss. We find a significant solar cycle

  4. [HW90] M. Herlihy and J. Wing. Linearizability: A correctness condition for concurrent objects. ACM Trans. on Programming Languages and Systems, 12(3):463--492,

    E-Print Network [OSTI]

    Moran, Shlomo

    [HW90] M. Herlihy and J. Wing. Linearizability: A correctness condition for concurrent objects. ACM of processors. In Proc. 3rd ACM Symp. on Principles of Distributed Computing, pages 199--207, 1984. [KP92] M. Klugerman and C. Plaxton. Small­depth counting networks. In Proc. 24rd ACM Symp. on Theory of Computing

  5. Exploring phosphatidylinositol 5-phosphate 4-kinase function

    E-Print Network [OSTI]

    Bulley, Simon J.; Clarke, Jonathan H.; Droubi, Alaa; Giudici, Maria-Luisa; Robin F., Irvine

    2014-10-02

    innate immune signaling. Cell host & microbe. 2013;14:148-58. Keune WJ, Jones DR, Bultsma Y, Sommer L, Zhou XZ, Lu KP, et al. Regulation of phosphatidylinositol-5-phosphate signaling by Pin1 determines sensitivity to oxidative stress. Science signaling...

  6. ORNL/CDIAC-64 Proceedings of RIHMI-WDC,

    E-Print Network [OSTI]

    -Russian Research Institute of Hydrometeorological Information-- World Data Center Obninsk, Kaluga Region, Russia Research U.S. Department of Energy Budget Activity Number KP 05 00 00 0 Prepared by the Carbon Dioxide MARIETTA ENERGY SYSTEMS, INC. for the U.S. DEPARTMENT OF ENERGY under Contract No. DE-AC05-84OR21400

  7. MAGNETIC ANISOTROPY AS AN AID TO IDENTIFYING CRM AND DRM IN RED SEDIMENTARY ROCKS

    E-Print Network [OSTI]

    Utrecht, Universiteit

    the remanence anisotropy of hematite-bearing sedimentary rocks. It also shows that very high magnetic fieldsMAGNETIC ANISOTROPY AS AN AID TO IDENTIFYING CRM AND DRM IN RED SEDIMENTARY ROCKS K.P. KODAMA1 June, 2004; Accepted: August 25, 2004 ABSTRACT To further evaluate the potential of magnetic anisotropy

  8. Biographical Sketch: Mark W. Meisel A. Professional Preparation

    E-Print Network [OSTI]

    Meisel, Mark W.

    .M. Brown, D.R. Talham, M.W. Meisel, K.P. Schmidt, G.S. Uhrig, S.E. Nagler, Phys. Rev. B 80, 094411 (2009 Chercheur Associé CNRS-CEA, 1985-86 B. Academic Appointments Colonel Allan R. and Margaret G. Crow Term. Hill, D. R. Talham, M. W. Meisel, Phys. Rev. B 82 (2010) 214405 [5 pages]. "Persistent photoinduced

  9. Can WAAS Availability Be Inferred From Geomagnetic Data? An Analysis Seebany Datta-Barua, Todd Walter, Juan Blanch, Per Enge

    E-Print Network [OSTI]

    Stanford University

    Can WAAS Availability Be Inferred From Geomagnetic Data? An Analysis Seebany Datta-Barua, Todd availability. As a result, a question of interest often arises: can we know in advance that WAAS availability alarm rate for WAAS availability. Kp has been known to reach its highest value on days for which

  10. Knowledge Provenance: An Approach to Modeling and Maintaining The Evolution and Validity of Knowledge

    E-Print Network [OSTI]

    Fox, Mark S.

    with information of unknown sources, and need to interact with "strangers". This makes trust and the validity of information in cyberspace arise as crucial issues. This thesis proposes knowledge provenance (KP) as a formal and maintaining the information sources, information dependencies, and trust structures. We conceptualize

  11. "Ceramics and high-temperature composites, silicides" Oxidation of Stainless Steel Powder

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    "Ceramics and high-temperature composites, silicides" CHTC9 Oxidation of Stainless Steel Powder. To understand the corrosion behavior of a model 304L(p)-ZrO2(s) composite, a 304L stainless steel powder has stainless steel particles. In this domain a mechanism is proposed and the kp value is calculated both due

  12. Quiet Time Precipitation Patterns of Energetic Particles

    E-Print Network [OSTI]

    Kallenrode, May-Britt

    in some of the most important parameters that de- pend on solar activity - Kp index, global average Solar Wind Speed and Particle Fluxes 9 4 Precipitation Patterns 11 4.1 Global Average Flux a potential hazard. This is evidenced by an especially strong solar storm on September 1-2, 1859, which

  13. An empirical model of magnetospheric chorus amplitude using solar wind and geomagnetic indices

    E-Print Network [OSTI]

    potential global models of magnetospheric chorus amplitude: one which uses only instantaneous AE* and Kp, for the first time, the global evolution of chorus amplitude as a function of solar wind and geomagnetic drivingAn empirical model of magnetospheric chorus amplitude using solar wind and geomagnetic indices D. I

  14. QER- Comment of E. Winkler

    Broader source: Energy.gov [DOE]

    I am one of many rejecting the idea of the proposed Kinder Moran pipeline. The people don't want to pay for a multibillionaire's expansion of his fossil fuel kingdom. Also, the methane pollution of this form of energy is not "clean energy." And most importantly it is destructive to the earth and the health of the people. As stewards of the planet, we must do better, and we are doing better, with cleaner and more economical forms of energy. Please, have a conscience and a vision. No fracked gas pipeline expansion.

  15. City of Moreno Valley,, California (Utility Company) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler, Iowa (Utility Company)Menasha,Monroe City,Moran,

  16. City of Morgan City, 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler, Iowa (Utility Company)Menasha,Monroe City,Moran,Utah (Utility

  17. City of Morganton, North Carolina (Utility Company) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler, Iowa (Utility Company)Menasha,Monroe City,Moran,Utah

  18. City of Morrill, Kansas (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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler, Iowa (Utility Company)Menasha,Monroe City,Moran,UtahMorrill,

  19. Basketball - Mens - 1951-1960 - 6 

    E-Print Network [OSTI]

    Unknown

    2006-04-18

    of the Trinity Aquifer, Mace and others (2000)........7 Figure 4. Water Level Elevations in Middle Trinity Aquifer, Aug., 2000 .............8 Figure 5. Water Level and Rainfall, Hays County, 57-56-710, 1999-2000..........24 Figure 6. Water Level and Rainfall..., Hays County, 57-64-705, 1999-2000..........25 Figure 7. Water Level and Rainfall, Blanco County, 57-53-305, 1999-2000 ......30 Figure 8. Water Level and Rainfall, Blanco County, 57-53-614, 1999-2000 ......31 Figure 9. Water Level and Rainfall, Comal...

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  1. ARM - VAP Product - mmcrmode2ci200608161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth Documentation

  2. ARM - VAP Product - mmcrmode2ci200712011cloth

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

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  7. ARM - VAP Product - mmcrmode3ge200511041cloth

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

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  8. ARM - VAP Product - mmcrmode3ge200608161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation Data Management Facility

  9. ARM - VAP Product - mmcrmode3ge200712011cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation Data Management

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation Data

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation

  12. ARM - VAP Product - mmcrmode4pr200511041cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation511041cloth Documentation

  13. ARM - VAP Product - mmcrmode4pr200606161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation511041cloth

  14. ARM - VAP Product - mmcrmode4pr200608161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth Documentation511041cloth8161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161cloth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA BetterProductsmergesondemergesonde2mace6161cloth8161clothro200309091cloth Documentation Data

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

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  18. ARM - VAP Product - mmcrmode4ro200712011cloth

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

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

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

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  1. ARM - VAP Product - mmcrmode6p1200408121cloth

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

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  2. ARM - VAP Product - mmcrmode6p1200804181cloth

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

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  3. RADIO FREQUENCY IDENTIFICATION DEVICES: EFFECTIVENESS IN IMPROVING SAFEGUARDS AT GAS-CENTRIFUGE URANIUM-ENRICHMENT PLANTS.

    SciTech Connect (OSTI)

    JOE,J.

    2007-07-08

    Recent advances in radio frequency identification devices (RFIDs) have engendered a growing interest among international safeguards experts. Potentially, RFIDs could reduce inspection work, viz. the number of inspections, number of samples, and duration of the visits, and thus improve the efficiency and effectiveness of international safeguards. This study systematically examined the applications of RFIDs for IAEA safeguards at large gas-centrifuge enrichment plants (GCEPs). These analyses are expected to help identify the requirements and desirable properties for RFIDs, to provide insights into which vulnerabilities matter most, and help formulate the required assurance tests. This work, specifically assesses the application of RFIDs for the ''Option 4'' safeguards approach, proposed by Bruce Moran, U. S. Nuclear Regulatory Commission (NRC), for large gas-centrifuge uranium-enrichment plants. The features of ''Option 4'' safeguards include placing RFIDs on all feed, product and tails (F/P/T) cylinders, along with WID readers in all FP/T stations and accountability scales. Other features of Moran's ''Option 4'' are Mailbox declarations, monitoring of load-cell-based weighing systems at the F/P/T stations and accountability scales, and continuous enrichment monitors. Relevant diversion paths were explored to evaluate how RFIDs improve the efficiency and effectiveness of safeguards. Additionally, the analysis addresses the use of RFIDs in conjunction with video monitoring and neutron detectors in a perimeter-monitoring approach to show that RFIDs can help to detect unidentified cylinders.

  4. Radon induced background processes in the KATRIN pre-spectrometer

    E-Print Network [OSTI]

    Fränkle, F M; Drexlin, G; Glück, F; Görhardt, S; Käfer, W; Mertens, S; Wandkowsky, N; Wolf, J

    2011-01-01

    The KArlsruhe TRItium Neutrino (KATRIN) experiment is a next generation, model independent, large scale tritium beta-decay experiment to determine the effective electron anti-neutrino mass by investigating the kinematics of tritium beta-decay with a sensitivity of 200 meV/c2 using the MAC-E filter technique. In order to reach this sensitivity, a low background level of 0.01 counts per second (cps) is required. This paper describes how the decay of radon in a MAC-E filter generates background events, based on measurements performed at the KATRIN pre-spectrometer test setup. Radon (Rn) atoms, which emanate from materials inside the vacuum region of the KATRIN spectrometers, are able to penetrate deep into the magnetic flux tube so that the alpha-decay of Rn contributes to the background. Of particular importance are electrons emitted in processes accompanying the Rn alpha-decay, such as shake-off, internal conversion of excited levels in the Rn daughter atoms and Auger electrons. While low-energy electrons (<...

  5. Homogenization limit for a multiband effective mass model in heterostructures

    SciTech Connect (OSTI)

    Morandi, O.

    2014-06-15

    We study the homogenization limit of a multiband model that describes the quantum mechanical motion of an electron in a quasi-periodic crystal. In this approach, the distance among the atoms that constitute the material (lattice parameter) is considered a small quantity. Our model include the description of materials with variable chemical composition, intergrowth compounds, and heterostructures. We derive the effective multiband evolution system in the framework of the kp approach. We study the well posedness of the mathematical problem. We compare the effective mass model with the standard kp models for uniform and non-uniforms crystals. We show that in the limit of vanishing lattice parameter, the particle density obtained by the effective mass model, converges to the exact probability density of the particle.

  6. Quantum curves

    E-Print Network [OSTI]

    Albert Schwarz

    2014-08-16

    One says that a pair (P,Q) of ordinary differential operators specify a quantum curve if [P,Q]=const. If a pair of difference operators (K,L) obey the relation KL=const LK we say that they specify a discrete quantum curve. This terminology is prompted by well known results about commuting differential and difference operators, relating pairs of such operators with pairs of meromorphic functions on algebraic curves obeying some conditions. The goal of this paper is to study the moduli spaces of quantum curves. We will show how to quantize a pair of commuting differential or difference operators (i.e. to construct the corresponding quantum curve or discrete quantum curve). The KP-hierarchy acts on the moduli space of quantum curves; we prove that similarly the discrete KP-hierarchy acts on the moduli space of discrete quantum curves.

  7. The development of a model system to monitor induction of an enzyme in Saccharomyces cerevisiae 

    E-Print Network [OSTI]

    Wilkerson, James Edward

    1979-01-01

    in 5 mls of 100 mM Iris-HC1 pH 8. 0 with 5 mM DTT and 10 mM KH PO and incubated at 30'C with 2 4 shaking for 15 minutes. Cells were washed once with 30 mls 10 mM KP pH 7. 5 and once with 3. 1! (w/v) KCI, 10 mM KP . at pH 7. 5 w'th 2 mg of Zymolase... of 50 KeV. Sections were stained with 0. 1/ Toludine Blue in 1X sodium borate for observation with light microscopy. Chemicals The three substrates, sodium a-napthyl phosphate, p-nitrophenol phosphate and 4-methylumbelliferyl phosphate and the DNase...

  8. Surjectivity of cycle maps Hel`ene Esnault and Marc Levine

    E-Print Network [OSTI]

    Levine, Marc

    for which the rational topological cycle maps CHp (X) Q H2p B (X, Q) #12;Surjectivity of cycle maps i cycle, and d = dim(X). One consequence of this decomposition is that the total cycle map d p=0 CHp) the Hodge numbers hp,q (X) all vanish for |p - q| > 1. (4) the maps CHp (X) C× Hp (X, Kp+1) are all

  9. WHEN IS THE MULTIPLICITY OF A WEIGHT EQUAL TO i? A. D. Berenshtein and A. V. Zelevinskii UDC 519.46

    E-Print Network [OSTI]

    Berenstein, Arkady

    no direct summands of type G 2. If K%,p = i, then PS(1) (~ - P) = i. 3) If S is a simple algebra of type G i e Z+ is even and (~ - I) = ~' imi + rmr/2; Scientific Council of the USSR Academy of Sciences-2663/90/2404-0259512.50 © 1991 Plenum Publishing Corporation 259 #12;3) type G2: I = ~m2, ~ = mini + m2~2, where ml, m 2 e Z

  10. Acoustic cloaking theory BY ANDREW N. NORRIS*

    E-Print Network [OSTI]

    Norris, Andrew

    composition of the cloak is not uniquely defined, but the phase speed and wave velocity of the pseudo-acoustic is for the infinitesimal pressure p(x, t) that satisfies the scalar wave equation in the surrounding fluid, V2 pKp Z 0: ð1 that the modified wave equation in u mimics the exterior equation (1.1) in the entire region U. This is achieved

  11. The control of drift in an analytical gamma ray spectrometer 

    E-Print Network [OSTI]

    Fite, Lloyd Emery

    1961-01-01

    Pulse &idth with Frequency 2 Variation of Photopeak Channel w1th High Voltage Helipot Adjustemnt 28 32 3 Variation of Photopesk Channel with Discriminstor Helipot Ad)ustment Hormslized Count Bate Dietribution for Peaks in Different Parts... Diagram of Proposed Drift Control System 13 7 Output Pulse from Preamplifier Using Radioactive Einco5 16 8 Preamplifier Output Using 2APl Cathode-Ray Tube 18 9 Preamplifier Output Using EE-2 Neon Lamp 10 Preampkifier Output Using 3KP16 Cathode...

  12. MR spectroscopic imaging Discussion/Conclusion: Adapted target-driven, overdiscretized reconstruc-

    E-Print Network [OSTI]

    of subcranial lipids of 1H MRSI. References: [1] KP Pruessmann et al., MRM 42(1999) 952 [2] T Kirchner et al., Proc. ISMRM 2012, #1734 [3] J Sánchez-González et al, MRM 55(2006) 287-295 [4] A Henning et al., NMR Biomed, 22(2009) 683 [5] I Tkac et al., MRM 41(1999) 649 [6] A Fillmer et al. Proc. ISMRM 2012, #2065 [7

  13. A 1.6Gbps Digital Clock and Data Recovery Circuit Pavan Kumar Hanumolu, Min Gyu Kim, Gu-Yeon Wei1, and Un-ku Moon

    E-Print Network [OSTI]

    Moon, Un-Ku

    . (1) to transform the analog loop filter to a digital loop filter (DLF) as follows: icpR + icp Cs icp Fig. 2. A digital CDR obtained by s-to-z transformation. by KP and KI and are equal to icpR and icpA 1.6Gbps Digital Clock and Data Recovery Circuit Pavan Kumar Hanumolu, Min Gyu Kim, Gu-Yeon Wei1

  14. Building Abbreviations Alumni Hall

    E-Print Network [OSTI]

    Johnson Jr.,, Ray

    20A/B 44 20A/B 44 20A/B 44 58 17 17 88 34 25 Building Abbreviations Alumni Hall Campbell Dome Colden FitzGerald Gym Frese Hall G Building Gertz Center Goldstein Theatre Honors Hall GC GB GT HH MU KY KG KS KP PH I Building Jefferson Hall Kiely Hall King Hall Kissena Hall Klapper Hall Music Building

  15. Reliable Computing 1 (3) (1995),pp. 239-249 An automatic and guaranteed determination

    E-Print Network [OSTI]

    Kearfott, R. Baker

    1995-01-01

    the number of roots of an analytic function, f(z), that lie inside a counterclockwise, simple dosed curve, C, the location of the roots relative m C, the number of subdivigons, and the arithmetic pre~ion used, uponHefiaHaa~T~eCKOfi C~yHKIII~, Ae.am~ BHyTpHIIp0CT0~ 3auKHyTOfl KpHBOfl B KOMnAeKCHOITI IIAOCKOCTH ~. X~'^OK~',~,~. H3

  16. Thesis Proposal Space Environment Impacts on Geostationary

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Weather Phenomena 1.3.2.1. The Solar Cycle 1.3.2.2. Low Energy Electrons 1.3.2.3. Kp Index 1.3.2.4. High.4.1.7. SSPA Anomalies and Eclipse Data 2.4.2. Solar Array Degradation 2.5. Anomalous Component Detection), the Solar Influences Data Center, and Los Alamos National Labs (LANL) geostationary satellites. We

  17. Some computational aspects of finite fields 

    E-Print Network [OSTI]

    Salmon, Ronald Dale

    1962-01-01

    . Hence gj ej. a+P=j 3+h=a 3+h+P=j 5) Distributive Law. Nor P(x), Q(x) and R(x) in 9[x], P(x)[Q(x) + R(x)] [P(x)Q(x)] + [P(x)R(x)]. n i m Proof. If P(x) Z ajx , Q(x) = E b x and R(x) E c x , then i~O j=o j~O n j m j s i P(x)[q(x) + R(x)] Z a x [ E b x...2=1 eKP MA(3)sa J2 IF(N 3&112 ~ 14m)4 112 CALL DI V &MMAX & GO TO 512 14 DO 513 J3=1+KP MA&4) =J3 1 IF(N-4)113@15 ~ 15 113 CALI DIV(MMAX& GO TO 513 15 DO 514 J4=)eKP MA(5) -J4 I I F ( N-5 ) 1 14 ~ I 6 ~ 1 6 ) & MA&33) ~ MB(33) s KT(15) e...

  18. Production of K?K? pairs in proton-proton collisions below the ? meson threshold

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

    Ye, Q. J.; Hartmann, M.; Chiladze, D.; Dymov, S.; Dzyuba, A.; Gao, H.; Gebel, R.; Hejny, V.; Kacharava, A.; Lorentz, B.; et al

    2013-06-12

    The pp?ppK?K? reaction was measured below the ? threshold at a beam energy of 2.568 GeV using the COSY-ANKE magnetic spectrometer. By assuming that the four-body phase space is distorted only by the product of two-body final-state interactions, fits to a variety of one-dimensional distributions permit the evaluation of differential and total cross sections. The shapes of the distributions in the Kp and Kpp invariant masses are reproduced only if the K?p interaction is even stronger than that found at higher energy. The cusp effect in the K?K? distribution at the K?K¯¯¯? threshold is much more clear and some evidencemore »is also found for coupling between the K?p and K¯¯¯?n channels. However, the energy dependence of the total cross section cannot be reproduced by considering only a simple product of such pairwise final-state interactions.« less

  19. A new bidirectional generalization of (2+1)-dimensional matrix k-constrained Kadomtsev-Petviashvili hierarchy

    SciTech Connect (OSTI)

    Chvartatskyi, O. I. Sydorenko, Yu. M.

    2013-11-15

    We introduce a new bidirectional generalization of (2+1)-dimensional k-constrained Kadomtsev-Petviashvili (KP) hierarchy ((2+1)-BDk-cKPH). This new hierarchy generalizes (2+1)-dimensional k-cKP hierarchy, (t{sub A}, ?{sub B}) and (?{sub A}, ?{sub B}) matrix hierarchies. (2+1)-BDk-cKPH contains a new matrix (1+1)-k-constrained KP hierarchy. Some members of (2+1)-BDk-cKPH are also listed. In particular, it contains matrix generalizations of Davey-Stewartson (DS) systems, (2+1)-dimensional modified Korteweg-de Vries equation and the Nizhnik equation. (2+1)-BDk-cKPH also includes new matrix (2+1)-dimensional generalizations of the Yajima-Oikawa and Melnikov systems. Binary Darboux Transformation Dressing Method is also proposed for construction of exact solutions for equations from (2+1)-BDk-cKPH. As an example the exact form of multi-soliton solutions for vector generalization of the DS system is given.

  20. OECD MCCI project long-term 2-D molten core concrete interaction test design report, Rev. 0. September 30, 2002.

    SciTech Connect (OSTI)

    Farmer, M. T.; Kilsdonk, D. J.; Lomperski, S.; Aeschliman, R. W.; Basu, S. (Nuclear Engineering Division); (NRC)

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program at Argonne National Laboratory addressed the issue of the ability of water to cool and thermally stabilize a molten core-concrete interaction when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. As a follow-on program to MACE, The Melt Coolability and Concrete Interaction Experiments (MCCI) project is conducting reactor material experiments and associated analysis to achieve the following two technical objectives: (1) resolve the ex-vessel debris coolability issue through a program that focuses on providing both confirmatory evidence and test data for the coolability mechanisms identified in MACE integral effects tests, and (2) address remaining uncertainties related to long-term two-dimensional molten core-concrete interactions under both wet and dry cavity conditions. Achievement of these two objectives will demonstrate the efficacy of severe accident management guidelines for existing plants, and provide the technical basis for better containment designs for future plants. In terms of the first program objective, the Small-Scale Water Ingression and Crust Strength (SSWICS) test series has been initiated to provide fundamental information on the ability of water to ingress into cracks and fissures that form in the debris during quench, thereby augmenting the otherwise conduction-limited heat transfer process. A test plan for Melt Eruption Separate Effects Tests (MESET) has also been developed to provide information on the extent of crust growth and melt eruptions as a function of gas sparging rate under well-controlled experiment conditions. In terms of the second program objective, the project Management Board (MB) has approved startup activities required to carry out experiments to address remaining uncertainties related to long-term two-dimensional molten core-concrete interaction. In particular, for both wet and dry cavity conditions, there is uncertainty insofar as evaluating the lateral vs. axial power split during a core-concrete interaction due to a lack of experiment data. As a result, there are differences in the 2-D cavity erosion predicted by codes such as MELCOR, WECHSL, and COSACO. The first step towards generating this data is to produce a test plan for review by the Project Review Group (PRG). The purpose of this document is to provide this plan.

  1. OECD MMCI 2-D Core Concrete Interaction (CCI) tests : CCCI-1 test data report-thermalhydraulic results. Rev 0 January 31, 2004.

    SciTech Connect (OSTI)

    Farmer, M. T.; Lomperski, S.; Aeschlimann, R. W.; Basu, S.

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program addressed the issue of the ability of water to cool and thermally stabilize a molten core-concrete interaction when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. As a follow-on program to MACE, The Melt Coolability and Concrete Interaction Experiments (MCCI) project is conducting reactor material experiments and associated analysis to achieve the following objectives: (1) resolve the ex-vessel debris coolability issue through a program that focuses on providing both confirmatory evidence and test data for the coolability mechanisms identified in MACE integral effects tests, and (2) address remaining uncertainties related to long-term two-dimensional molten coreconcrete interactions under both wet and dry cavity conditions. Achievement of these two program objectives will demonstrate the efficacy of severe accident management guidelines for existing plants, and provide the technical basis for better containment designs for future plants. In terms of satisfying these objectives, the Management Board (MB) approved the conduct of two long-term 2-D Core-Concrete Interaction (CCI) experiments designed to provide information in several areas, including: (i) lateral vs. axial power split during dry core-concrete interaction, (ii) integral debris coolability data following late phase flooding, and (iii) data regarding the nature and extent of the cooling transient following breach of the crust formed at the melt-water interface. This data report provides thermal hydraulic test results from the CCI-1 experiment, which was conducted on December 19, 2003. Test specifications for CCI-1 are provided in Table 1-1. This experiment investigated the interaction of a fully oxidized 400 kg PWR core melt, initially containing 8 wt % calcined siliceous concrete, with a specially designed two-dimensional siliceous concrete test section with an initial cross-sectional area of 50 cm x 50 cm. The report begins by providing a summary description of the CCI-1 test apparatus and operating procedures, followed by presentation of the thermal-hydraulic results. The posttest debris examination results will be provided in a subsequent publication. Observations drawn within this report regarding the overall cavity erosion behavior may be subject to revision once the posttest examinations are completed, since these examinations will fully reveal the final cavity shape.

  2. OECD MCCI 2-D Core Concrete Interaction (CCI) tests : CCI-2 test data report-thermalhydraulic results, Rev. 0 October 15, 2004.

    SciTech Connect (OSTI)

    Farmer, M. T.; Lomperski, S.; Kilsdonk, D. J.; Aeschlimann, R. W.; Basu, S.

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program addressed the issue of the ability of water to cool and thermally stabilize a molten core-concrete interaction when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. As a follow-on program to MACE, The Melt Coolability and Concrete Interaction Experiments (MCCI) project is conducting reactor material experiments and associated analysis to achieve the following objectives: (1) resolve the ex-vessel debris coolability issue through a program that focuses on providing both confirmatory evidence and test data for the coolability mechanisms identified in MACE integral effects tests, and (2) address remaining uncertainties related to long-term two-dimensional molten core-concrete interactions under both wet and dry cavity conditions. Achievement of these two program objectives will demonstrate the efficacy of severe accident management guidelines for existing plants, and provide the technical basis for better containment designs for future plants. In terms of satisfying these objectives, the Management Board (MB) approved the conduct of two long-term 2-D Core-Concrete Interaction (CCI) experiments designed to provide information in several areas, including: (i) lateral vs. axial power split during dry core-concrete interaction, (ii) integral debris coolability data following late phase flooding, and (iii) data regarding the nature and extent of the cooling transient following breach of the crust formed at the melt-water interface. This data report provides thermal hydraulic test results from the CCI-2 experiment, which was conducted on August 24, 2004. Test specifications for CCI-2 are provided in Table 1-1. This experiment investigated the interaction of a fully oxidized 400 kg PWR core melt, initially containing 8 wt % Limestone/Common Sand (LCS) concrete, with a specially designed two-dimensional LCS concrete test section with an initial cross-sectional area of 50 cm x 50 cm. The report begins by providing a summary description of the CCI-2 test apparatus and operating procedures, followed by presentation of the thermal-hydraulic results. Detailed posttest debris examination results will be provided in a subsequent publication. Observations drawn within this report regarding the overall cavity erosion behavior may be subject to revision once the posttest examinations are completed, since these examinations will fully reveal the final cavity shape.

  3. OECD MCCI project 2-D Core Concrete Interaction (CCI) tests : CCI-3 test data report-thermalhydraulic results. Rev. 0 October 15, 2005.

    SciTech Connect (OSTI)

    Farmer, M. T.; Lomperski, S.; Kilsdonk, D. J.; Aeschlimann, R. W.; Basu, S.

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program addressed the issue of the ability of water to cool and thermally stabilize a molten core-concrete interaction when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. As a follow-on program to MACE, The Melt Coolability and Concrete Interaction Experiments (MCCI) project is conducting reactor material experiments and associated analysis to achieve the following objectives: (1) resolve the ex-vessel debris coolability issue through a program that focuses on providing both confirmatory evidence and test data for the coolability mechanisms identified in MACE integral effects tests, and (2) address remaining uncertainties related to long-term two-dimensional molten core-concrete interactions under both wet and dry cavity conditions. Achievement of these two program objectives will demonstrate the efficacy of severe accident management guidelines for existing plants, and provide the technical basis for better containment designs for future plants. In terms of satisfying these objectives, the Management Board (MB) approved the conduct of a third long-term 2-D Core-Concrete Interaction (CCI) experiment designed to provide information in several areas, including: (i) lateral vs. axial power split during dry core-concrete interaction, (ii) integral debris coolability data following late phase flooding, and (iii) data regarding the nature and extent of the cooling transient following breach of the crust formed at the melt-water interface. This data report provides thermal hydraulic test results from the CCI-3 experiment, which was conducted on September 22, 2005. Test specifications for CCI-3 are provided in Table 1-1. This experiment investigated the interaction of a fully oxidized 375 kg PWR core melt, initially containing 15 wt% siliceous concrete, with a specially designed two-dimensional siliceous concrete test section with an initial cross-sectional area of 50 cm x 50 cm. The sand and aggregate constituents for this particular siliceous concrete were provided by CEA as an in-kind contribution to the program. The report begins by providing a summary description of the CCI-3 test apparatus and operating procedures, followed by presentation of the thermal-hydraulic results. Detailed posttest debris examination results will be provided in a subsequent publication. Observations drawn within this report regarding the overall cavity erosion behavior may be subject to revision once the posttest examinations are completed, since these examinations will fully reveal the final cavity shape.

  4. OECD 2-D Core Concrete Interaction (CCI) tests : CCI-2 test plan, Rev. 0 January 31, 2004.

    SciTech Connect (OSTI)

    Farmer, M. T.; Kilsdonk, D. J.; Lomperski, S.; Aeschlimann, R. W.; Basu, S. (Nuclear Engineering Division)

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program addressed the issue of the ability of water to cool and thermally stabilize a molten core-concrete interaction when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. As a follow-on program to MACE, The Melt Coolability and Concrete Interaction Experiments (MCCI) project is conducting reactor material experiments and associated analysis to achieve the following objectives: (1) resolve the ex-vessel debris coolability issue through a program that focuses on providing both confirmatory evidence and test data for the coolability mechanisms identified in MACE integral effects tests, and (2) address remaining uncertainties related to long-term two-dimensional molten core-concrete interactions under both wet and dry cavity conditions. Achievement of these two program objectives will demonstrate the efficacy of severe accident management guidelines for existing plants, and provide the technical basis for better containment designs for future plants. In terms of satisfying these objectives, the Management Board (MB) approved the conduct of two long-term 2-D Core-Concrete Interaction (CCI) experiments designed to provide information in several areas, including: (i) lateral vs. axial power split during dry core-concrete interaction, (ii) integral debris coolability data following late phase flooding, and (iii) data regarding the nature and extent of the cooling transient following breach of the crust formed at the melt-water interface. The first of these two tests, CCI-1, was conducted on December 19, 2003. This test investigated the interaction of a fully oxidized 400 kg PWR core melt, initially containing 8 wt % calcined siliceous concrete, with a specially designed two-dimensional siliceous concrete test section with an initial cross-sectional area of 50 cm x 50 cm. The second of these two planned tests, CCI-2, will be conducted with a nearly identical test facility and experiment boundary conditions, but with a Limestone/Common Sand (LCS) concrete test section to investigate the effect of concrete type on the two-dimensional core-concrete interaction and debris cooling behavior. The objective of this report is to provide the overall test plan for CCI-2 to enable pretest calculations to be carried out. The report begins by providing a summary description of the CCI-2 test apparatus, followed by a description of the planned test operating procedure. Overall specifications for CCI-2 are provided in Table 1-1.

  5. A molecular line and continuum study of water maser sources

    E-Print Network [OSTI]

    Jenness, Timothy

    1996-12-10

    Bally J., Lada C. J., 1983, ApJ, 265, 824 Benson P. J., et al., 1990, ApJS, 74, 911 Burke B. F., Papa D. C., Papadopoulos G. D., Schwartz P. R., Knowles S. H., Sullivan W. T., Meeks M. L., Moran J. M., 1970, ApJ, 160, L63 Chapman J. M., Cohen R. J., 1986... , MNRAS, 220, 513 Cheung A. C., Rank D. M., Townes C. H., Thornton D. D., Welch W. J., 1969, Nature, 221, 626 Chini R., Elsa¨sser H., Neckel T., 1980, A&A, 91, 186 Cooke B., Elitzur M., 1985, ApJ, 295, 175 Elitzur M., Hollenbach D. J., McKee C. F., 1989...

  6. Magnetic Activity in Stars, Discs and Quasars

    E-Print Network [OSTI]

    Donald Lynden-Bell

    2000-07-14

    Although magnetic fields in interstellar matter were postulated almost fifty years ago, magnetohydrodynamic theory was then much hampered by our inability to see what the magnetic field configurations were like and, after a decade of innovative development, cynics, not without some justification, began to claim that anything can happen when magnetism and an imaginative theorist get together. Thus cosmic lightning in particular received a bad press. More recently great advances in observational techniques that we shall hear of from Title, Beck, Moran and Mirabel have enabled us to see not only the sun's magnetic field with unprecedented clarity but the fields in galaxies, quasars and microquasars are now measured and not merely figments of fertile imaginations.

  7. OECD/MCCI 2-D Core Concrete Interaction (CCI) tests : final report February 28, 2006.

    SciTech Connect (OSTI)

    Farmer, M. T.; Lomperski, S.; Kilsdonk, D. J.; Aeschlimann, R. W.; Basu, S. (Nuclear Engineering Division); (NRC)

    2011-05-23

    Although extensive research has been conducted over the last several years in the areas of Core-Concrete Interaction (CCI) and debris coolability, two important issues warrant further investigation. The first issue concerns the effectiveness of water in terminating a CCI by flooding the interacting masses from above, thereby quenching the molten core debris and rendering it permanently coolable. This safety issue was investigated in the EPRI-sponsored Melt Attack and Coolability Experiments (MACE) program. The approach was to conduct large scale, integral-type reactor materials experiments with core melt masses ranging up to two metric tons. These experiments provided unique, and for the most part repeatable, indications of heat transfer mechanism(s) that could provide long term debris cooling. However, the results did not demonstrate definitively that a melt would always be completely quenched. This was due to the fact that the crust anchored to the test section sidewalls in every test, which led to melt/crust separation, even at the largest test section lateral span of 1.20 m. This decoupling is not expected for a typical reactor cavity, which has a span of 5-6 m. Even though the crust may mechanically bond to the reactor cavity walls, the weight of the coolant and the crust itself is expected to periodically fracture the crust and restore contact with the melt. Although crust fracturing does not ensure that coolability will be achieved, it nonetheless provides a pathway for water to recontact the underlying melt, thereby allowing other debris cooling mechanisms to proceed. A related task of the current program, which is not addressed in this particular report, is to measure crust strength to check the hypothesis that a corium crust would not be strong enough to sustain melt/crust separation in a plant accident. The second important issue concerns long-term, two-dimensional concrete ablation by a prototypic core oxide melt. As discussed by Foit the existing reactor material database for dry cavity conditions is solely one-dimensional. Although the MACE Scoping Test was carried out with a two-dimensional concrete cavity, the interaction was flooded soon after ablation was initiated to investigate debris coolability. Moreover, due to the scoping nature of this test, the apparatus was minimally instrumented and therefore the results are of limited value from the code validation viewpoint. Aside from the MACE program, the COTELS test series also investigated 2-D CCI under flooded cavity conditions. However, the input power density for these tests was quite high relative to the prototypic case. Finally, the BETA test series provided valuable data on 2-D core concrete interaction under dry cavity conditions, but these tests focused on investigating the interaction of the metallic (steel) phase with concrete. Due to these limitations, there is significant uncertainty in the partition of energy dissipated for the ablation of concrete in the lateral and axial directions under dry cavity conditions for the case of a core oxide melt. Accurate knowledge of this 'power split' is important in the evaluation of the consequences of an ex-vessel severe accident; e.g., lateral erosion can undermine containment structures, while axial erosion can penetrate the basemat, leading to ground contamination and/or possible containment bypass. As a result of this uncertainty, there are still substantial differences among computer codes in the prediction of 2-D cavity erosion behavior under both wet and dry cavity conditions. In light of the above issues, the OECD-sponsored Melt Coolability and Concrete Interaction (MCCI) program was initiated at Argonne National Laboratory. The project conducted reactor materials experiments and associated analysis to achieve the following technical objectives: (1) resolve the ex-vessel debris coolability issue through a program that focused on providing both confirmatory evidence and test data for the coolability mechanisms identified in MACE integral effects tests, and (2) address remaining uncertainties relat

  8. Outdoor Cooking. 

    E-Print Network [OSTI]

    Douglas, Jenoyce; Reasonover, Frances

    1967-01-01

    can "breathe." If the fire box has a rounded bottom, use enough base to make a level bad to the edge of the box. After four or six uses, wash the base to remove drip- pings and ash. Be sure it is thoroughly dry before using, because gravel can... or wash and dry it to kp it bm. Poisonous bacteria require moisture, food and tern- peratures 50 to 110 degrees F. Heat destroys harmful bacteria, and cold rgards production of toxins. MEAT Equipment, number of guests to be served and time avail...

  9. Children Watching System Using a Small UAV -Position Estimation And Following Control of a Target Person-

    E-Print Network [OSTI]

    Ohya, Akihisa

    Abstract of AR.Drone control 5) 2 3 Fig. 2 Helmet (indoor) Fig. 3 Detected helmet (indoor) 2.3 3 1 d(t) (t (10) Kp Ti Td 3 3. Altug 2 [4] Azrad 1 [5] [6] 4. 4.1 AR.Drone 4 UAV Parrot AR.Drone[ 6] AR.Drone CMOS QVGA(320 240) UVLC(MJPEG-like) AR.Drone CPU Fig. 6 AR.Drone 1.0 4.2 PC AR.Drone ROS roscore 4.3 PC - AR.Drone

  10. Angular distribution of polarized spontaneous emissions and its effect on light extraction behavior in InGaN-based light emitting diodes

    SciTech Connect (OSTI)

    Yuan, Gangcheng; Chen, Xinjuan; Yu, Tongjun, E-mail: tongjun@pku.edu.cn; Lu, Huimin; Chen, Zhizhong; Kang, Xiangning; Wu, Jiejun; Zhang, Guoyi [State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871 (China)

    2014-03-07

    Angular intensity distributions of differently polarized light sources in multiple quantum wells (MQWs) and their effects on extraction behavior of spontaneous emission from light emitting diode (LED) chips have been studied. Theoretical calculation based on k·p approximation, ray tracing simulation and angular electroluminescence measurement were applied in this work. It is found that the electron-hole recombination in the InGaN MQWs produces a spherical distribution of an s-polarized source and a dumbbell-shaped p-polarized source. Light rays from different polarized sources experience different extraction processes, determining the polarization degree of electro-luminescence and extraction efficiency of LEDs.

  11. The multicomponent 2D Toda hierarchy: dispersionless limit

    E-Print Network [OSTI]

    Manuel Manas; Luis Martinez Alonso

    2009-04-21

    The factorization problem of the multi-component 2D Toda hierarchy is used to analyze the dispersionless limit of this hierarchy. A dispersive version of the Whitham hierarchy defined in terms of scalar Lax and Orlov--Schulman operators is introduced and the corresponding additional symmetries and string equations are discussed. Then, it is shown how KP and Toda pictures of the dispersionless Whitham hierarchy emerge in the dispersionless limit. Moreover, the additional symmetries and string equations for the dispersive Whitham hierarchy are studied in this limit.

  12. Nonlinear Dynamics of Quantum Systems and Soliton Theory

    E-Print Network [OSTI]

    Eldad Bettelheim; Alexander G. Abanov; Paul Wiegmann

    2006-10-26

    We show that space-time evolution of one-dimensional fermionic systems is described by nonlinear equations of soliton theory. We identify a space-time dependence of a matrix element of fermionic systems related to the {\\it Orthogonality Catastrophe} or {boundary states} with the $\\tau$-function of the modified KP-hierarchy. The established relation allows to apply the apparatus of soliton theory to the study of non-linear aspects of quantum dynamics. We also describe a {\\it bosonization in momentum space} - a representation of a fermion operator by a Bose field in the presence of a boundary state.

  13. Dynamic Rank Factor Model for Text Streams Supplementary Material

    E-Print Network [OSTI]

    Carin, Lawrence

    (lp,k|-) = GIG(a - 1/2, 2up,k, (p,k)2 ), p(up,k|-) = G(a + b, up,k + k) (14) The Generalized Inverse Gaussian (GIG) distribution can be expressed as GIG(x; p, a, b) = (a/b) p 2 2Kp( ab) xP -1 exp - 1 2 (ax + b x(k,t|-) = GIG(e - 1/2, 2k,t, (sk,t - ksk,t-1)2 ), p(k,t|-) = G(e + f, k,t + ) (16) · Sampling , p(|-) = G(1

  14. "!#%$&('0)12(43 57698A@CBEDF8AGIHQPSRSTUGIVXWYBE`a`1WAVbDF8G#cdWA69TF`e6"fhgeiqpr`scdWYButvWYTUwx69TyBG#H69T`1DUHfGIB@`

    E-Print Network [OSTI]

    Nordlund, Kai

    kukuÿY§²o¤¦ÿ & ¦ j © g8@ ¢ o·g 1I¢ ouSo¦¥ jd g%§0 '& gu`(¤&ÿ¨du & ¢'¢ §0gu ¢ gug 1a¢ ou ¢ §d&©2§0g14r`§& ¢ õõ ötsvuýSw¤x¨ùúün÷åû y & g ¢ g &d j ¦ÿ¨gu j (pÿåå 5© g8@S k¤p© ¢ E½ ¢ ¢ ouh§gu§0 ¢ ¢ pgu g 1 ©u¦ £o¤¦è0£E§0p0£ 0 ¢ p (¤ ¦ÿ¨0 ¢ ¦p ¢ jXj &¦ÿågu j¡ © g8@ ¢ oEd¯p j

  15. Math 26, Second Midterm Exam Review April, 2006

    E-Print Network [OSTI]

    Goodman, Fred

    (x) 0. For a curve rotated around the y­axis, you have to reverse the roles of x and y. (3) The pressure) and the curve x = b(y), then x­moment = d c 1 2 b(y)2 dy. For the y­moment and ¯y, you have to reverse the roles the formulas that I gave you for exam 1. (2) The logistic DE is dP dt = kP(1 - P K ). This is separable

  16. Modeling direct interband tunneling. II. Lower-dimensional structures

    SciTech Connect (OSTI)

    Pan, Andrew; Chui, Chi On

    2014-08-07

    We investigate the applicability of the two-band Hamiltonian and the widely used Kane analytical formula to interband tunneling along unconfined directions in nanostructures. Through comparisons with k·p and tight-binding calculations and quantum transport simulations, we find that the primary correction is the change in effective band gap. For both constant fields and realistic tunnel field-effect transistors, dimensionally consistent band gap scaling of the Kane formula allows analytical and numerical device simulations to approximate non-equilibrium Green's function current characteristics without arbitrary fitting. This allows efficient first-order calibration of semiclassical models for interband tunneling in nanodevices.

  17. An empirical model of electron and ion fluxes derived from observations at geosynchronous orbit

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

    Denton, M. H.; Thomsen, M. F.; Jordanova, V. K.; Henderson, M. G.; Borovsky, J. E.; Denton, J. S.; Pitchford, D.; Hartley, D. P.

    2015-04-01

    Knowledge of the plasma fluxes at geosynchronous orbit is important to both scientific and operational investigations. We present a new empirical model of the ion flux and the electron flux at geosynchronous orbit (GEO) in the energy range ~1 eV to ~40 keV. The model is based on a total of 82 satellite-years of observations from the Magnetospheric Plasma Analyzer instruments on Los Alamos National Laboratory satellites at GEO. These data are assigned to a fixed grid of 24 local-times and 40 energies, at all possible values of Kp. Bi-linear interpolation is used between grid points to provide the ionmore »flux and the electron flux values at any energy and local-time, and for given values of geomagnetic activity (proxied by the 3-hour Kp index), and also for given values of solar activity (proxied by the daily F10.7 index). Initial comparison of the electron flux from the model with data from a Compact Environmental Anomaly Sensor II (CEASE-II), also located at geosynchronous orbit, indicate a good match during both quiet and disturbed periods. The model is available for distribution as a FORTRAN code that can be modified to suit user-requirements.« less

  18. Adaptive Optics Imaging of IRAS 18276-1431: a bipolar pre-planetary nebula with circumstellar "searchlight beams" and "arcs"

    E-Print Network [OSTI]

    Contreras, C S; Sahai, R; De Paz, A G; Morris, M

    2006-01-01

    We present high-angular resolution images of the post-AGB nebula IRAS18276-1431 (also known as OH17.7-2.0) obtained with the Keck II Adaptive Optics (AO) system in its Natural Guide Star (NGS) mode in the Kp, Lp, and Ms near-infrared bands. We also present supporting optical F606W and F814W HST images as well as interferometric observations of the 12CO(J=1-0), 13CO(J=1-0), and 2.6mm continuum emission with OVRO. The envelope of IRAS18276-1431 displays a clear bipolar morphology in our optical and NIR images with two lobes separated by a dark waist and surrounded by a faint 4.5"x3.4" halo. Our Kp-band image reveals two pairs of radial ``searchlight beams'' emerging from the nebula center and several intersecting, arc-like features. From our CO data we derive a mass of M>0.38[D/3kpc]^2 Msun and an expansion velocity v_exp=17km/s for the molecular envelope. The density in the halo follows a radial power-law proportional to r^-3, which is consistent with a mass-loss rate increasing with time. Analysis of the NIR ...

  19. Spatial autocorrelation approaches to testing residuals from least squares regression

    E-Print Network [OSTI]

    Chen, Yanguang

    2015-01-01

    In statistics, the Durbin-Watson test is always employed to detect the presence of serial correlation of residuals from a least squares regression analysis. However, the Durbin-Watson statistic is only suitable for ordered time or spatial series. If the variables comprise cross-sectional data coming from spatial random sampling, the Durbin-Watson will be ineffectual because the value of Durbin-Watson's statistic depends on the sequences of data point arrangement. Based on the ideas from spatial autocorrelation, this paper presents two new statistics for testing serial correlation of residuals from least squares regression based on spatial samples. By analogy with the new form of Moran's index, an autocorrelation coefficient is defined with a standardized residual vector and a normalized spatial weight matrix. Then on the analogy of the Durbin-Watson statistic, a serial correlation index is constructed. As a case, the two statistics are applied to the spatial sample of 29 China's regions. These results show th...

  20. In-Born Radio Frequency Identification Devices for Safeguards Use at Gas-Centrifuge Enrichment Plants

    SciTech Connect (OSTI)

    Ward,R.; Rosenthal,M.

    2009-07-12

    Global expansion of nuclear power has made the need for improved safeguards measures at Gas Centrifuge Enrichment Plants (GCEPs) imperative. One technology under consideration for safeguards applications is Radio Frequency Identification Devices (RFIDs). RFIDs have the potential to increase IAEA inspector"s efficiency and effectiveness either by reducing the number of inspection visits necessary or by reducing inspection effort at those visits. This study assesses the use of RFIDs as an integral component of the "Option 4" safeguards approach developed by Bruce Moran, U.S. Nuclear Regulatory Commission (NRC), for a model GCEP [1]. A previous analysis of RFIDs was conducted by Jae Jo, Brookhaven National Laboratory (BNL), which evaluated the effectiveness of an RFID tag applied by the facility operator [2]. This paper presents a similar evaluation carried out in the framework of Jo’s paper, but it is predicated on the assumption that the RFID tag is applied by the manufacturer at the birth of the cylinder, rather than by the operator. Relevant diversion scenarios are examined to determine if RFIDs increase the effectiveness and/ or efficiency of safeguards in these scenarios. Conclusions on the benefits offered to inspectors by using in-born RFID tagging are presented.

  1. An efficient atomistic quantum mechanical simulation on InAs band-to-band tunneling field-effect transistors

    SciTech Connect (OSTI)

    Wang, Zhi [State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China); Jiang, Xiang-Wei; Li, Shu-Shen [State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China); Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China); Wang, Lin-Wang, E-mail: lwwang@lbl.gov [Material Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

    2014-03-24

    We have presented a fully atomistic quantum mechanical simulation method on band-to-band tunneling (BTBT) field-effect transistors (FETs). Our simulation approach is based on the linear combination of bulk band method with empirical pseudopotentials, which is an atomist method beyond the effective-mass approximation or k.p perturbation method, and can be used to simulate real-size devices (?10{sup 5} atoms) efficiently (?5 h on a few computational cores). Using this approach, we studied the InAs dual-gate BTBT FETs. The I-V characteristics from our approach agree very well with the tight-binding non-equilibrium Green's function results, yet our method costs much less computationally. In addition, we have studied ways to increase the tunneling current and analyzed the effects of different mechanisms for that purpose.

  2. Mode propagation and attenuation in lined ducts

    E-Print Network [OSTI]

    BI, Wenping

    2014-01-01

    Optimal impedance for each mode is an important concept in an infinitely long duct lined with uniform absorption material. However it is not valid for finite length linings. This is because that the modes in lined ducts are not power-orthogonal; the total sound power is not equal to the sum of the sound power of each mode; cross-power terms may play important roles. In this paper, we study sound propagation and attenuation in an infinite rigid duct lined with a finite length of lining impedance. The lining impedance may be axial segments and circumferentially non-uniform. We propose two new physical quantities Kp and S to describe the self-overlap of the left eigenfunction and right eigenfunction of one mode and the normalized overlap between modes, respectively. The two new physical quantities describe totally the mode behaviors in lined ducts.

  3. Engineering of optical polarization based on electronic band structures of A-plane ZnO layers under biaxial strains

    SciTech Connect (OSTI)

    Matsui, Hiroaki, E-mail: hiroaki@ee.t.u-tokyo.ac.jp; Tabata, Hitoshi [Department of Bioengineering, The University of Tokyo, 1-3-7 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Department of Electrical Engineering and Information Systems, The University of Tokyo, 1-3-7 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Hasuike, Noriyuki; Harima, Hiroshi [Department of Electronics and Information Science, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585 (Japan)

    2014-09-21

    In-plane anisotropic strains in A-plane layers on the electronic band structure of ZnO were investigated from the viewpoint of optical polarization anisotropy. Investigations utilizing k·p perturbation theory revealed that energy transitions and associated oscillation strengths were dependent on in-plane strains. The theoretical correlation between optical polarizations and in-plane strains was experimentally demonstrated using A-plane ZnO layers with different in-plane strains. Finally, optical polarization anisotropy and its implications for in-plane optical properties are discussed in relation to the energy shift between two orthogonal directions. Higher polarization rotations were obtained in an A-plane ZnO layer with in-plane biaxially compressive strains as compared to strain-free ZnO. This study provides detailed information concerning the role played by in-plane strains in optically polarized applications based on nonpolar ZnO in the ultra-violet region.

  4. A critical analysis of the use of population data in allotting federal-grant funds for research and extension 

    E-Print Network [OSTI]

    Adkins, William Gray

    1953-01-01

    $9th IevBX' 9, st 69. 19+~~ HN egad 99sxegs ' ox' Oge Gx the fvzB mesn9xtg? 9g 9'eunQ 9n ether' acta ghieh IgevkCg g~4p hageg ef e92ggaNiny 89'Ce 19 lg base, yes get, -ee~!~MR@ beihcxoe, it vav38 Feve ie:xeeaei ~ sR"xva af g~w' gqN g~ PRgj @6@g... the phiieaegl~~a emr2 ~ ef stats sztsaaiea ss~ 8Kp8~t Btstienai a&'tietiea Qn ozpK43tn?88y 63?HQgssa ~M GQ~ eentsetai Msk a~~a ef re~ md sponsion seemgiiahxanhs, gl~shaQ tfntsrisis UR9eh QGGX %Jith ths Q~~catiev. Qf ~ fknKIs srs tad te anhgaet9va dicsvsaioaa...

  5. Self-similar radiation from numerical Rosenau-Hyman compactons

    SciTech Connect (OSTI)

    Rus, Francisco Villatoro, Francisco R.

    2007-11-10

    The numerical simulation of compactons, solitary waves with compact support, is characterized by the presence of spurious phenomena, as numerically induced radiation, which is illustrated here using four numerical methods applied to the Rosenau-Hyman K(p, p) equation. Both forward and backward radiations are emitted from the compacton presenting a self-similar shape which has been illustrated graphically by the proper scaling. A grid refinement study shows that the amplitude of the radiations decreases as the grid size does, confirming its numerical origin. The front velocity and the amplitude of both radiations have been studied as a function of both the compacton and the numerical parameters. The amplitude of the radiations decreases exponentially in time, being characterized by a nearly constant scaling exponent. An ansatz for both the backward and forward radiations corresponding to a self-similar function characterized by the scaling exponent is suggested by the present numerical results.

  6. A technique for separating dead and abnormal spermatozoa from normal bovine ejaculates and some resultant effects on the storage life of extended semen 

    E-Print Network [OSTI]

    Brown, Murray Allison

    1953-01-01

    ?1250& and 2s900 Oxf'ord mitS per' millilitez oP. diluted semen. The semen thus treated vis then shored a4 8+0 F. xor a period of vere no significant cU. i'gerenees in lixxahiii@ eZ the semen to vhich 9, 250& 509, and 950 units oZ penicillin throughout hhe...+;q I 1. :. L b. 7&&'iiiBJ. "!UT' FJ& BRP~Yi:~' X!C i~rAD age Pa&icORNPL BPBH&KP~Bl Fife!' IiOJJ, '. f~P . B)s'XHg ZP'C, J&~&~Lj'. ?'~ AND 33iiw QF~aLZA!&T:2'!, 'fr". '~-u's iQ ~~('03AL~& Lie 4 By EX~&DlilR~3 SEi'PN ' ' By g48TEEl OP 8GVMCE Nay...

  7. On the quark distribution in an on-shell heavy quark and its all-order relations with the perturbative fragmentation function.

    E-Print Network [OSTI]

    Gardi, Einan

    ? 4? e ?ixp+y? ? dDk (2?)D e iy?(p++k+) × [ k+ p+ + 2 + 2 p+ k+ (?k2)1+u((p + k)2 ?m2) ? (2m2 + k2)(1 + k+p+ ) (?k2)1+u((p + k)2 ?m2)2 ] , where the k + p+ part in the first term and the entire second term originate in the Feynman gauge part... ? integral, a factor of ?k + p+ in the numerator becomes (1?x) while the inverse factor becomes 1/(1?x). We therefore have to deal with just one type of integral: I(m2, x; a, b,D) ? p+ ? ? ?? dy? 2? e ?ixp+y? ? dDk (2?)D e iy?(p++k+) 1 (?k2)a((p + k)2 ?m2)b...

  8. Study of strange particle production in pp collisions with the ALICE detector

    E-Print Network [OSTI]

    H. Ricaud; A. Kalweit; A. Maire

    2010-03-24

    ALICE is well suited for strange particles production studies since it has very good reconstruction capabilities in the low transverse momentum ($p_{t}$) region and it also allows to extend the identification up to quite high $p_{t}$. Charged strange mesons ($\\kp$, $\\km$,) are reconstructed via energy loss measurements whereas neutral strange mesons ($\\ks$) and strange hyperons ($\\lam$, $\\Xi$, $\\Omega$) are identified via vertex reconstruction. All these particles carry important information: first, the measurement of production yields and the particle ratio within the statistical models can help to understand the medium created and secondly the dynamics at intermediate $p_{t}$ investigated via the baryon over meson ratio ($\\lam / \\ks$) allows a better understanding of the hadronization mechanisms and of the underlying event processes. We present these two aspects of the strange particles analysis in pp collisions using simulated data.

  9. The multicomponent 2D Toda hierarchy: Discrete flows and string equations

    E-Print Network [OSTI]

    Manuel Manas; Luis Martinez Alonso; Carlos Alvarez Fernandez

    2009-01-21

    The multicomponent 2D Toda hierarchy is analyzed through a factorization problem associated to an infinite-dimensional group. A new set of discrete flows is considered and the corresponding Lax and Zakharov--Shabat equations are characterized. Reductions of block Toeplitz and Hankel bi-infinite matrix types are proposed and studied. Orlov--Schulman operators, string equations and additional symmetries (discrete and continuous) are considered. The continuous-discrete Lax equations are shown to be equivalent to a factorization problem as well as to a set of string equations. A congruence method to derive site independent equations is presented and used to derive equations in the discrete multicomponent KP sector (and also for its modification) of the theory as well as dispersive Whitham equations.

  10. Energy dependence of $\\bar{K}N$ interaction in nuclear medium

    E-Print Network [OSTI]

    A. Cieply

    2011-12-05

    When the $\\bar{K}N$ system is submerged in nuclear medium the $\\bar{K}N$ scattering amplitude and the final state branching ratios exhibit a strong energy dependence when going to energies below the $\\bar{K}N$ threshold. A sharp increase of $\\bar{K}N$ attraction below the $\\bar{K}N$ threshold provides a link between shallow $\\bar{K}$-nuclear potentials based on the chiral $\\bar{K}N$ amplitude evaluated at threshold and the deep phenomenological optical potentials obtained in fits to kaonic atoms data. We show the energy dependence of the in-medium $K^{-}p$ amplitude and demonstrate the impact of energy dependent branching ratios on the $\\Lambda$-hypernuclear production rates. \\keywords{kaon-nucleon amplitude \\and nuclear medium \\and hypernuclei

  11. Anomalous Soft Photons in Hadron Production

    E-Print Network [OSTI]

    Cheuk-Yin Wong

    2010-05-17

    Anomalous soft photons in excess of what is expected from electromagnetic bremsstrahlung have been observed in association with the production of hadrons, mostly mesons, in high-energy (K+)p, (pi+)p, (pi-)p, pp, and (e+)(e-) collisions. We propose a model for the simultaneous production of anomalous soft photons and mesons in quantum field theory, in which the meson production arises from the oscillation of color charge densities of the quarks of the underlying vacuum in the flux tube. As a quark carries both a color charge and an electric charge, the oscillation of the color charge densities will be accompanied by the oscillation of electric charge densities, which will in turn lead to the simultaneous production of soft photons during the meson production process. How the production of these soft photons may explain the anomalous soft photon data will be discussed. Further experimental measurements to test the model will be proposed.

  12. Measurement of the inclusive semielectronic D(0) branching fraction

    E-Print Network [OSTI]

    Baringer, Philip S.

    1996-09-01

    is statisti p(p) ~MeV/c) N(D*1!D0p1, D0!K2p1) e(Kp) ~%! N 225–250 1129644 64.6 250–275 945640 64.3 275–300 741634 64.4 300–325 528630 65.1 325–350 393625 66.0 350–375 262619 66.4 375–400 153615 68.8 400–425 5769 63.1 Total 4208683 3000 Y. KUBO65.55 B ~ D0!K2e1...Farlane, P. M. Patel, and B. Spaan McGill University and the Institute of Particle Physics, Montre´al, Que´bec H3A 2T8, Canada A. J. Sadoff Ithaca College, Ithaca, New York 14850 R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N...

  13. On the solutions to the string equation

    E-Print Network [OSTI]

    A. Schwarz

    1991-09-10

    The set of solutions to the string equation $[P,Q]=1$ where $P$ and $Q$ are differential operators is described.It is shown that there exists one-to-one correspondence between this set and the set of pairs of commuting differential operators.This fact permits us to describe the set of solutions to the string equation in terms of moduli spa- ces of algebraic curves,however the direct description is much simpler. Some results are obtained for the superanalog to the string equation where $P$ and $Q$ are considered as superdifferential operators. It is proved that this equation is invariant with respect to Manin-Radul, Mulase-Rabin and Kac-van de Leur KP-hierarchies.

  14. Training Hybrid Neuro-Fuzzy System to Infer Permeability in Wells on Maracaibo Lake, Venezuela

    E-Print Network [OSTI]

    Hurtado, Nuri; Torres, Julio

    2014-01-01

    The high accuracy on inferrring of rocks properties, such as permeability ($k$), is a very useful study in the analysis of wells. This has led to development and use of empirical equations like Tixier, Timur, among others. In order to improve the inference of permeability we used a hybrid Neuro-Fuzzy System (NFS). The NFS allowed us to infer permeability of well, from data of porosity ($\\phi$) and water saturation ($Sw$). The work was performed with data from wells VCL-1021 (P21) and VCL-950 (P50), Block III, Maracaibo Lake, Venezuela. We evaluated the NFS equations ($k_{P50,i}(\\phi_i,Sw_i)$) with neighboring well data ($P21$), in order to verify the validity of the equations in the area. We have used ANFIS in MatLab.

  15. Method of forming a ceramic to ceramic joint

    DOE Patents [OSTI]

    Cutler, Raymond Ashton; Hutchings, Kent Neal; Kleinlein, Brian Paul; Carolan, Michael Francis

    2010-04-13

    A method of joining at least two sintered bodies to form a composite structure, includes: providing a joint material between joining surfaces of first and second sintered bodies; applying pressure from 1 kP to less than 5 MPa to provide an assembly; heating the assembly to a conforming temperature sufficient to allow the joint material to conform to the joining surfaces; and further heating the assembly to a joining temperature below a minimum sintering temperature of the first and second sintered bodies. The joint material includes organic component(s) and ceramic particles. The ceramic particles constitute 40-75 vol. % of the joint material, and include at least one element of the first and/or second sintered bodies. Composite structures produced by the method are also disclosed.

  16. On the synthesis of fixed order stabilizing controllers 

    E-Print Network [OSTI]

    Kang, Sin Cheon

    2007-04-25

    ) is the transfer function relating the control input, u1(t) to the output, y(t) and the transfer function G2(s) relates how the disturbance u2(t) affects the output y(t). We assume G1(s),G2(s) to be proper rational transfer functions. If a controller, -C... > 0 2. For condition 2: NGT (s) = Dcl(s) + (1 + etas)betaNcl(s)) = s5 + 4s4 + 108s3 + (208 + 2kd)s2 + (2kp + 200)s + 2ki The real and imaginary parts of the NGT at jw are given by NGT (jw,K) = NGT,e(w,K) + jwNGT,o(w,K) NGT,e(w,K) = 4w4 -(208 + 2kd)w2...

  17. Conjugacy of daytime ELF-VLF emission activities in the auroral zones

    SciTech Connect (OSTI)

    Sato, Natsuo (National Institute of Polar Research, Tokyo (Japan)); Suzuki, Hiroyuki; Maezawa, Kiyoshi (Yamagata Univ. (Japan)); Saemundsson, T. (Univ. of Iceland, Reykjavik (Iceland))

    1990-06-01

    Statistical characteristics of emission occurrence are examined, using 1 year of digital data of 750-Hz, 2-kHz, and 4-kHz intensity records. These waves were measured simultaneously at a conjugate pair of stations, namely Syowa Station in Antarctica and Husafell in Iceland. The following notable diurnal and seasonal variation and Kp dependence was found for the daytime emissions (04-14 MLT): (1) The 750-Hz emissions were mostly observed during the daytime around noon in both conjugate regions. The emission occurrence reached a maximum 1-3 hours earlier at Syowa than at Husafell during the equinox season. The seasonal variation of 750-Hz emission occurrence showed a maximum during local summer and a minimum during local winter at both stations. The ratio of the emission enhancement in summer to that at the equinox is higher at Husafell than at Syowa. The emissions mostly occurred during moderately disturbed conditions of Kp {approximately} 2-4 at both stations. (2) The 2-kHz emission occurrence reached a maximum around 13 MLT at Syowa and around 11 MLT at Husafell. Peaks of the emission occurrence during summer shifted to the afternoonside at Syowa and to the morningside at Husafell. The occurrences at Syowa reached a maximum during local summer and a minimum during winter. (3) The occurrence of 4-kHz emissions was much more frequent at Husafell than at Syowa. The emissions at Husafell occurred mostly in the morning ({approximately}08 MLT) and in local winter, and the occurrences became more frequent with increasing magnetic activity. On the bases of these statistical characteristics, the authors discuss the effects of sunlight and geomagnetic activity which cause an asymmetry of wave propagation from the magnetosphere to the ionosphere in the two hemispheres.

  18. OECD MCCI project Melt Eruption Test (MET) design report, Rev. 2. April 15, 2003.

    SciTech Connect (OSTI)

    Farmer, M. T.; Lomperski, S.; Kilsdonk, D. J.; Aeschlimann, R. W.; Basu, S. (Nuclear Engineering Division); (NRC)

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program at Argonne National Laboratory addressed the issue of the ability of water to cool and thermally stabilize a molten core-concrete interaction when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. The Melt Coolability and Concrete Interaction (MCCI) program is pursuing separate effect tests to examine the viability of the melt coolability mechanisms identified as part of the MACE program. These mechanisms include bulk cooling, water ingression, volcanic eruptions, and crust breach. At the second PRG meeting held at ANL on 22-23 October 2002, a preliminary design1 for a separate effects test to investigate the melt eruption cooling mechanism was presented for PRG review. At this meeting, NUPEC made several recommendations on the experiment approach aimed at optimizing the chances of achieving a floating crust boundary condition in this test. The principal recommendation was to incorporate a mortar sidewall liner into the test design, since data from the COTELS experiment program indicates that corium does not form a strong mechanical bond with this material. Other recommendations included: (i) reduction of the electrode elevation to well below the melt upper surface elevation (since the crust may bond to these solid surfaces), and (ii) favorably taper the mortar liner to facilitate crust detachment and relocation during the experiment. Finally, as a precursor to implementing these modifications, the PRG recommended the development of a design for a small-scale scoping test intended to verify the ability of the mortar liner to preclude formation of an anchored bridge crust under core-concrete interaction conditions. This revised Melt Eruption Test (MET) plan is intended to satisfy these PRG recommendations. Specifically, the revised plan focuses on providing data on the extent of crust growth and melt eruptions as a function of gas sparging rate under well-controlled experiment conditions, including a floating crust boundary condition. The overall objective of MET is to determine to what extent core debris is rendered coolable by eruptive-type processes that breach the crust that rests upon the melt. The specific objectives of this test are as follows: (1) Evaluate the augmentation in surface heat flux during periods of melt eruption; (2) Evaluate the melt entrainment coefficient from the heat flux and gas flow rate data for input into models that calculate ex-vessel debris coolability; (3) Characterize the morphology and coolability of debris resulting from eruptive processes that transport melt into overlying water; and (4) Discriminate between periods when eruptions take the form of particle ejections into overlying water, leading to a porous particle bed, and single-phase extrusions, which lead to volcano-type structures.

  19. Steady-State Electrical Conduction in the Periodic Lorentz Gas

    E-Print Network [OSTI]

    N. I. Chernov; G. L. Eyink; J. L. Lebowitz; Ya. G. Sinai

    1993-02-08

    We study nonequilibrium steady states in the Lorentz gas of periodic scatterers when an external field is applied and the particle kinetic energy is held fixed by a ``thermostat'' constructed according to Gauss' principle of least constraint (a model problem previously studied numerically by Moran and Hoover). The resulting dynamics is reversible and deterministic, but does not preserve Liouville measure. For a sufficiently small field, we prove the following results: (1) existence of a unique stationary, ergodic measure obtained by forward evolution of initial absolutely continuous distributions, for which the Pesin entropy formula and Young's expression for the fractal dimension are valid; (2) exact identity of the steady-state thermodyamic entropy production, the asymptotic decay of the Gibbs entropy for the time-evolved distribution, and minus the sum of the Lyapunov exponents; (3) an explicit expression for the full nonlinear current response (Kawasaki formula); and (4) validity of linear response theory and Ohm's transport law, including the Einstein relation between conductivity and diffusion matrices. Results (2) and (4) yield also a direct relation between Lyapunov exponents and zero-field transport (=diffusion) coefficients. Although we restrict ourselves here to dimension $d=2,$ the results carry over to higher dimensions and to some other physical situations: e.g. with additional external magnetic fields. The proofs use a well-developed theory of small perturbations of hyperbolic dynamical systems and the method of Markov sieves, an approximation of Markov partitions. In our context we discuss also the van Kampen objection to linear response theory, which, we point out, overlooks the ``structural stability'' of strongly hyperbolic flows.

  20. OECD MCCI project final report, February 28, 2006.

    SciTech Connect (OSTI)

    Farmer, M. T.; Lomperski, S.; Kilsdonk, D. J.; Aeschlimann, R. W.; Basu, S.

    2011-05-23

    Although extensive research has been conducted over the last several years in the areas of Core-Concrete Interaction (CCI) and debris coolability, two important issues warrant further investigation. The first issue concerns the effectiveness of water in terminating a CCI by flooding the interacting masses from above, thereby quenching the molten core debris and rendering it permanently coolable. This safety issue was investigated in the Melt Attack and Coolability Experiments (MACE) program. The approach was to conduct large scale, integral-type reactor materials experiments with core melt masses ranging up to two metric tons. These experiments provided unique, and for the most part repeatable, indications of heat transfer mechanism(s) that could provide long term debris cooling. However, the results did not demonstrate definitively that a melt would always be completely quenched. This was due to the fact that the crust anchored to the test section sidewalls in every test, which led to melt/crust separation, even at the largest test section lateral span of 1.20 m. This decoupling is not expected for a typical reactor cavity, which has a span of 5-6 m. Even though the crust may mechanically bond to the reactor cavity walls, the weight of the coolant and the crust itself is expected to periodically fracture the crust and restore contact with the melt. The fractured crust will provide a pathway for water to recontact the underlying melt, thereby allowing other debris cooling mechanisms to proceed and contribute to terminating the core-concrete interaction. Thus, one of the key aims of the current program was to measure crust strength to check the hypothesis that a corium crust would not be strong enough to sustain melt/crust separation in a plant accident. The second important issue concerns long-term, two-dimensional concrete ablation by a prototypic core oxide melt. As discussed by Foit, the existing reactor material database for dry cavity conditions is solely one-dimensional. Although the MACE Scoping Test was carried out with a two-dimensional concrete cavity, the interaction was flooded soon after ablation was initiated to investigate debris coolability. Moreover, due to the scoping nature of this test, the apparatus was minimally instrumented and therefore the results are of limited value from the code validation viewpoint. Aside from the MACE program, the COTELS test series also investigated 2-D CCI under flooded cavity conditions. However, the input power density for these tests was quite high relative to the prototypic case. Finally, the BETA test series provided valuable data on 2-D core concrete interaction under dry cavity conditions, but these tests focused on investigating the interaction of the metallic (steel) phase with concrete. Due to these limitations, there is significant uncertainty in the partitioning of energy dissipated for the ablation of concrete in the lateral and axial directions under dry cavity conditions for the case of a core oxide melt. Accurate knowledge of this 'power split' is important in the evaluation of the consequences of an ex-vessel severe accident; e.g., lateral erosion can undermine containment structures, while axial erosion can penetrate the basemat, leading to ground contamination and/or possible containment bypass. As a result of this uncertainty, there are still substantial differences among computer codes in the prediction of 2-D cavity erosion behavior under both wet and dry cavity conditions. Thus, a second key aim of the current program was to provide the necessary data to help resolve these modeling differences. In light of the above issues, the OECD-sponsored Melt Coolability and Concrete Interaction (MCCI) program was initiated at Argonne National Laboratory. The project conducted reactor materials experiments and associated analysis to achieve the following technical objectives: (1) resolve the ex-vessel debris coolability issue through a program that focused on providing both confirmatory evidence and test data for the coolability mechanisms identified in previous

  1. Dependence of polar hole density on magnetic and solar conditions

    SciTech Connect (OSTI)

    Hoegy, W.R.; Grebowsky, J.M. (NASA Goddard Space Flight Center, Greenbelt, MD (USA))

    1991-04-01

    The dependence of electron density in the polar F region ionization hole on solar activity, universal time (UT), magnetic activity, season, and hemisphere is studied using data from the Langmuir probes on Atmosphere Explorer C and Dynamics Explorer 2. The AE-C data were obtained during solar minimum when the 3-month average 10.7-cm solar flux index varied from 70 to 140; the DE 2 data were obtained near solar maximum when 10.7-cm solar flux index varied from 120 to 220. The polar hole is a region on the nightside of the polar cap where reduced ionization exists because of the long transport time of ionization from the dayside across the polar cap. The behavior of this region as a function of 10.7-cm solar flux (F10.7), UT, and Kp is statistically modeled for equinox, summer, and winter conditions for each hemisphere separately. The strongest dependencies are observed in F10.7 and UT; the Kp dependence is weak because it poorly represents the complexities of convection across the polar cap. A strong hemispherical difference due to the offset of the magnetic poles from the Earth's rotation axis is observed in the UT dependence of the ionization hole: there is a density minimum at about 20.3 hours UT in the south and at about 4.8 hours UT in the north; the minimum to maximum UT density variation is about a factor of 8.9 in the south and about a factor of 2.1 in the north. There is a seasonal variation in the dependence of ion density (N{sub i}) on solar flux (F10.7). Use of the relationship (N{sub i}{approximately}F10.7{sup D}) yields values of D of approximately unity (1.) in the summer polar hole and about 2.1 during equinox. There is an overall asymmetry in the density level between hemispheres; it was found that the winter hole density is about a factor of 10 greater in the north than in the south. The Utah State University time dependent ionosphere model gives similar UT behavior to that found in the AE-C and DE 2 data.

  2. A theoretical investigation of particle motion occurring in a two-phase curvilinear flow 

    E-Print Network [OSTI]

    Redler, Kenneth Oliver

    1962-01-01

    Xl + 3 +o ?]. ?2 3 ~0+1 2Uow ?1?2 9@o? Kl + 2Uo ?2) + (9990~?lr + 3 Uow ?1?2r 3 Uod?lr - 12Uo Xl?2 + 9 Uow Kjr + 33Io? Kl?2r + ?Vow ?2r 6U w ?2r + 2V w ?2r + 3U w X12r + 3U w Kl?2r + V2?V2r+f + ( U ?V&r+~ V? ?1Kp- SUow Klr - 16Uow Kl?2r w 9 Uow... Xlr + @Vow ?1K2r + 2U w ?2r- 6Va~F + Vow+2r + 3Vo? Xlr + M2o~ Xl?2r + I, Vow ~2rp u + ( U w ?11 + W3 w Kl?2r - SVoool'r - 1SUow Xl?2r +99? Klr + Kl?2r + 6Uo? ?2r - 9Uo? 4 + 2? ?2r + )33Vo? ?l2r + 6Uow ?1?2r +3Uo?X2r~+ + QVor Klr + 3 Uo?X1X2r" gUo...

  3. Probing the Small Scale Matter Power Spectrum through Dark Matter Annihilation in the Early Universe

    E-Print Network [OSTI]

    Aravind Natarajan; Nick Zhu; Naoki Yoshida

    2015-03-11

    Recent observations of the cosmic microwave background (CMB) anisotropies and the distribution of galaxies, galaxy clusters, and the Lyman Alpha forest have constrained the shape of the power spectrum of matter fluctuations on large scales k Energy released by dark matter annihilation can modify the spectrum of CMB temperature fluctuations and thus CMB experiments such as Planck have been able to constrain the quantity f /m energy absorbed by gas, is the annihilation rate assumed constant, and m is the particle mass. We assume the standard scale-invariant primordial matter power spectrum of P_prim(k) ~ k^{n_s} at large scales k n_s, the excess small-scale power results in a much larger number of nonlinear small mass halos, particularly at high redshifts. Dark matter annihilation in these halos releases sufficient energy to partially ionize the gas, and consequently modify the spectrum of CMB fluctuations. We show that the recent Planck data can already be used to constrain the power spectrum on small scales. For a simple model with an NFW profile with halo concentration parameter c_200 = 5 and f / m = 1/100 picobarn c / GeV, we can limit the mass variance sigma_{max} < 100 at the 95% confidence level, corresponding to a power law index m_s < 1.43 (1.63) for k_p = 100 (1000) h/Mpc. Our results are also relevant to theories that feature a running spectral index.

  4. Interband magneto-spectroscopy in InSb square and parabolic quantum wells

    SciTech Connect (OSTI)

    Kasturiarachchi, T.; Edirisooriya, M.; Mishima, T. D.; Doezema, R. E.; Santos, M. B.; Saha, D.; Pan, X.; Sanders, G. D.; Stanton, C. J.

    2015-06-07

    We measure the magneto-optical absorption due to intersubband optical transitions between conduction and valence subband Landau levels in InSb square and parabolic quantum wells. InSb has the narrowest band gap (0.24?eV at low temperature) of the III–V semiconductors leading to a small effective mass (0.014 m{sub 0}) and a large g–factor (?51). As a result, the Landau level spacing is large at relatively small magnetic fields (<8?T), and one can observe spin-splitting of the Landau levels. We examine two structures: (i) a multiple-square-well structure and (ii) a structure containing multiple parabolic wells. The energies and intensities of the strongest features are well explained by a modified Pidgeon-Brown model based on an 8-band k•p model that explicitly incorporates pseudomorphic strain. The strain is essential for obtaining agreement between theory and experiment. While modeling the square well is relatively straight-forward, the parabolic well consists of 43 different layers of various thickness to approximate a parabolic potential. Agreement between theory and experiment for the parabolic well validates the applicability of the model to complicated structures, which demonstrates the robustness of our model and confirms its relevance for developing electronic and spintronic devices that seek to exploit the properties of the InSb band structure.

  5. Influence of Stellar Multiplicity On Planet Formation. IV. Adaptive Optics Imaging of Kepler Stars With Multiple Transiting Planet Candidates

    E-Print Network [OSTI]

    Wang, Ji; Xie, Ji-Wei; Ciardi, David R

    2015-01-01

    The Kepler mission provides a wealth of multiple transiting planet systems (MTPS). The formation and evolution of multi-planet systems are likely to be influenced by companion stars given the abundance of multi stellar systems. We study the influence of stellar companions by measuring the stellar multiplicity rate of MTPS. We select 138 bright (KP < 13.5) Kepler MTPS and search for stellar companions with AO imaging data and archival radial velocity (RV) data. We obtain new AO images for 73 MTPS. Other MTPS in the sample have archival AO imaging data from the Kepler Community Follow-up Observation Program (CFOP). From these imaging data, we detect 42 stellar companions around 35 host stars. For stellar separation 1 AU < a < 100 AU, the stellar multiplicity rate is 5.2 $\\pm$ 5.0% for MTPS, which is 2.8{\\sigma} lower than 21.1 $\\pm$ 2.8% for the control sample, i.e., the field stars in the solar neighborhood. We identify two origins for the deficit of stellar companions within 100 AU to MTPS: (1) a sup...

  6. Passive tracer in a slowly decorrelating random flow with a large mean

    E-Print Network [OSTI]

    Tomasz Komorowski; Lenya Ryzhik

    2006-07-25

    We consider the movement of a particle advected by a random flow of the form $\\vv+\\delta \\bF(\\vx)$, with $\\vv\\in\\R^d$ a constant drift, $\\bF(\\vx)$ -- the fluctuation -- given by a zero mean, stationary random field and $\\delta\\ll 1$ so that the drift dominates over the fluctuation. The two-point correlation matrix $\\bR(\\vx)$ of the random field decays as $|\\vx|^{2\\alpha-2}$, as $|\\vx|\\to+\\infty$ with $\\alpha<1$. The Kubo formula for the effective diffusion coefficient obtained in \\cite{kp79} for rapidly decorrelating fields diverges when $1/2\\le\\alpha<1$. We show formally that on the time scale $\\delta^{-1/\\alpha}$ the deviation of the trajectory from its mean $\\by(t)=\\vx(t)-\\vv t$ converges to a fractional Brownian motion $B_\\alpha(t)$ in this range of the exponent $\\alpha$. We also prove rigorously upper and lower bounds which show that $\\E[|\\by(t)|^2]$ converges to zero for times $t\\ll\\delta^{-1/\\alpha}$ and to infinity on time scales $t\\gg \\delta^{-1/\\alpha}$ as $\\delta\\to 0$ when $\\alpha\\in(1/2,1)$. On the other hand, when $\\alpha<1/2$ non-trivial behavior is observed on the time-scale $O(\\delta^{-2})$.

  7. Electronic structure, morphology and emission polarization of enhanced symmetry InAs quantum-dot-like structures grown on InP substrates by molecular beam epitaxy

    SciTech Connect (OSTI)

    Mary?ski, A.; S?k, G.; Musia?, A.; Andrzejewski, J.; Misiewicz, J.; Gilfert, C.; Reithmaier, J. P.; Capua, A.; Karni, O.; Gready, D.; Eisenstein, G.; Atiya, G.; Kaplan, W. D.; Kölling, S.

    2013-09-07

    The optical and structural properties of a new kind of InAs/InGaAlAs/InP quantum dot (QD)-like objects grown by molecular beam epitaxy have been investigated. These nanostructures were found to have significantly more symmetrical shapes compared to the commonly obtained dash-like geometries typical of this material system. The enhanced symmetry has been achieved due to the use of an As{sub 2} source and the consequent shorter migration length of the indium atoms. Structural studies based on a combination of scanning transmission electron microscopy (STEM) and atom probe tomography (APT) provided detailed information on both the structure and composition distribution within an individual nanostructure. However, it was not possible to determine the lateral aspect ratio from STEM or APT. To verify the in-plane geometry, electronic structure calculations, including the energy levels and transition oscillator strength for the QDs have been performed using an eight-band k·p model and realistic system parameters. The results of calculations were compared to measured polarization-resolved photoluminescence data. On the basis of measured degree of linear polarization of the surface emission, the in-plane shape of the QDs has been assessed proving a substantial increase in lateral symmetry. This results in quantum-dot rather than quantum-dash like properties, consistent with expectations based on the growth conditions and the structural data.

  8. Study of chirally motivated low-energy $K^-$ optical potentials

    E-Print Network [OSTI]

    A. Cieply; E. Friedman; A. Gal; J. Mares

    2001-06-09

    The $K^-$ optical potential in the nuclear medium is evaluated self consistently from a free-space $K^-N$ $t$ matrix constructed within a coupled-channel chiral approach to the low-energy $\\bar K N$ data. The chiral-model parameters are fitted to a select subset of the low-energy data {\\it plus} the $K^-$ atomic data throughout the periodic table. The resulting attractive $K^-$ optical potentials are relatively `shallow', with central depth of the real part about 55 MeV, for a fairly reasonable reproduction of the atomic data with $\\chi^2 / N \\approx 2.2$. Relatively `deep' attractive potentials of depth about 180 MeV, which result in other phenomenological approaches with $\\chi^2 / N \\approx 1.5$, are ruled out within chirally motivated models. Different physical data input is required to distinguish between shallow and deep $K^-$ optical potentials. The ($K^{-}_{\\rm stop},\\pi$) reaction could provide such a test, with exclusive rates differing by over a factor of three for the two classes of potentials. Finally, forward ($K^-,p$) differential cross sections for the production of relatively narrow deeply bound $K^-$ {\\it nuclear} states are evaluated for deep $K^-$ optical potentials, yielding values considerably lower than those estimated before.

  9. Ge/SiGe quantum wells on Si(111): Growth, structural, and optical properties

    SciTech Connect (OSTI)

    Gatti, E., E-mail: eleonora.gatti@mater.unimib.it; Pezzoli, F.; Grilli, E. [L-NESS and Dipartimento di Scienza dei Materiali, Università di Milano Bicocca, via Cozzi 55, I-20125 Milano (Italy); Isa, F.; Chrastina, D.; Isella, G. [L-NESS and Dipartimento di Fisica, Politecnico di Milano, Polo di Como, via Anzani 42, I - 22100 Como (Italy); Müller Gubler, E. [Electron Microscopy Center of ETH Zürich (EMEZ), August-Piccard-Hof 1, CH-8093 Zürich (Switzerland)

    2014-07-28

    The epitaxial growth of Ge/Si{sub 0.15}Ge{sub 0.85} multiple quantum wells (MQWs) on Si(111) substrates is demonstrated. A 3??m thick reverse, double-step virtual substrate with a final composition of Si{sub 0.10}Ge{sub 0.90} has been employed. High resolution XRD, TEM, AFM and defect etching analysis has been used for the study of the structural properties of the buffer and of the QWs. The QW stack is characterized by a threading dislocation density of about 3?×?10{sup 7?}cm{sup ?2} and an interdiffusion layer at the well/barrier interface of 2.1?nm. The quantum confined energy levels of this system have been calculated using the k·p and effective mass approximation methods. The Ge/Si{sub 0.15}Ge{sub 0.85} MQWs have been characterized through absorption and photoluminescence measurements. The optical spectra have been compared with those of Ge/Si{sub 0.15}Ge{sub 0.85} QWs grown on Si(001) through a thick graded virtual substrate.

  10. KEPLER-63b: A GIANT PLANET IN A POLAR ORBIT AROUND A YOUNG SUN-LIKE STAR

    SciTech Connect (OSTI)

    Sanchis-Ojeda, Roberto; Winn, Joshua N.; Albrecht, Simon; Marcy, Geoffrey W.; Isaacson, Howard; Howard, Andrew W.; Johnson, John Asher; Torres, Guillermo; Carter, Joshua A.; Dawson, Rebekah I.; Geary, John C.; Campante, Tiago L.; Chaplin, William J.; Davies, Guy R.; Lund, Mikkel N.; Buchhave, Lars A.; Everett, Mark E.; Fischer, Debra A.; Gilliland, Ronald L.; Horch, Elliott P.; and others

    2013-09-20

    We present the discovery and characterization of a giant planet orbiting the young Sun-like star Kepler-63 (KOI-63, m{sub Kp} = 11.6, T{sub eff} = 5576 K, M{sub *} = 0.98 M{sub ?}). The planet transits every 9.43 days, with apparent depth variations and brightening anomalies caused by large starspots. The planet's radius is 6.1 ± 0.2 R{sub ?}, based on the transit light curve and the estimated stellar parameters. The planet's mass could not be measured with the existing radial-velocity data, due to the high level of stellar activity, but if we assume a circular orbit, then we can place a rough upper bound of 120 M{sub ?} (3?). The host star has a high obliquity (? = 104°), based on the Rossiter-McLaughlin effect and an analysis of starspot-crossing events. This result is valuable because almost all previous obliquity measurements are for stars with more massive planets and shorter-period orbits. In addition, the polar orbit of the planet combined with an analysis of spot-crossing events reveals a large and persistent polar starspot. Such spots have previously been inferred using Doppler tomography, and predicted in simulations of magnetic activity of young Sun-like stars.

  11. Fusion of irreducible modules in WLM(p,p')

    E-Print Network [OSTI]

    Jorgen Rasmussen

    2009-12-10

    Based on symmetry principles, we derive a fusion algebra generated from repeated fusions of the irreducible modules appearing in the W-extended logarithmic minimal model WLM(p,p'). In addition to the irreducible modules themselves, closure of the commutative and associative fusion algebra requires the participation of a variety of reducible yet indecomposable modules. We conjecture that this fusion algebra is the same as the one obtained by application of the Nahm-Gaberdiel-Kausch algorithm and find that it reproduces the known such results for WLM(1,p') and WLM(2,3). For p>1, this fusion algebra does not contain a unit. Requiring that the spectrum of modules is invariant under a natural notion of conjugation, however, introduces an additional (p-1)(p'-1) reducible yet indecomposable rank-1 modules, among which the identity is found, still yielding a well-defined fusion algebra. In this greater fusion algebra, the aforementioned symmetries are generated by fusions with the three irreducible modules of conformal weights Delta_{kp-1,1}, k=1,2,3. We also identify polynomial fusion rings associated with our fusion algebras.

  12. Tensile-strain and doping enhanced direct bandgap optical transition of n{sup +} doped Ge/GeSi quantum wells

    SciTech Connect (OSTI)

    Fan, W. J.

    2013-11-14

    Band structures of tensile strained and n{sup +} doped Ge/GeSi quantum wells (QWs) are calculated by multiple-band k·p method. The energy dispersion curves of the ? and L conduction subbands are obtained. The effects of tensile strain and n{sup +} doping in Ge on direct bandgap optical gain and spontaneous radiative recombination rate spectra are investigated including the electron leakage from ? to L conduction subbands. Our results show that the optical gain and spontaneous radiative recombination rate can be significantly increased with the tensile strain, n-type doping concentration, and injection carrier density in the Ge QW. The free carrier absorption is calculated and cannot be ignored because of the heavily doped Ge. The pure TM mode polarized net optical gain up to 1153?cm{sup ?1} can be achieved for the Ge/Ge{sub 0.986}Si{sub 0.014} QW with tensile strain of 1.61% and n-type doping concentration of 30?×?10{sup 18}?cm{sup ?3}.

  13. Climatology of Mid-latitude Ionospheric Disturbances from the Very Large Array Low-frequency Sky Survey

    E-Print Network [OSTI]

    Helmboldt, J F; Cotton, W D

    2012-01-01

    The results of a climatological study of ionospheric disturbances derived from observations of cosmic sources from the Very Large Array (VLA) Low-frequency Sky Survey (VLSS) are presented. We have used the ionospheric corrections applied to the 74 MHz interferometric data within the VLSS imaging process to obtain fluctuation spectra for the total electron content (TEC) gradient on spatial scales from a few to hundreds of kilometers and temporal scales from less than one minute to nearly an hour. The observations sample nearly all times of day and all seasons. They also span latitudes and longitudes from 28 deg. N to 40 deg. N and 95 deg. W to 114 deg. W, respectively. We have binned and averaged the fluctuation spectra according to time of day, season, and geomagnetic (Kp index) and solar (F10.7) activity. These spectra provide a detailed, multi-scale account of seasonal and intraday variations in ionospheric activity with wavelike structures detected at wavelengths between about 35 and 250 km. In some cases,...

  14. Biological and Environmental Research Program at Oak Ridge National Laboratory, FY 1992--1994

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    This report is the 1992--1994 Program Director`s Overview Report for Oak Ridge National Laboratory`s (ORNL`s) Biological and Environmental Research (BER) Program, and as such it addresses KP-funded work at ORNL conducted during FY 1991 and in progress during FY 1992; it also serves as a planning document for the remainder of FY 1992 through FY 1994. Non-BER funded work at ORNL relevant to the mission of OHER is also discussed. The second section of the report describes ORNL facilities and resources used by the BER program. The third section addresses research management practices at ORNL. The fourth, fifth, and sixth sections address BER-funded research in progress, program accomplishments and research highlights, and program orientation for the remainder of FY 1992 through FY 1994, respectively. Work for non-BER sponsors is described in the seventh section, followed by a discussion of significant near and long-term issues facing BER work at ORNL in the eighth section. The last section provides a statistical summary of BER research at ORNL. Appendices supplement the above topics with additional detail.

  15. Biological and Environmental Research Program at Oak Ridge National Laboratory, FY 1992--1994

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    This report is the 1992--1994 Program Director's Overview Report for Oak Ridge National Laboratory's (ORNL's) Biological and Environmental Research (BER) Program, and as such it addresses KP-funded work at ORNL conducted during FY 1991 and in progress during FY 1992; it also serves as a planning document for the remainder of FY 1992 through FY 1994. Non-BER funded work at ORNL relevant to the mission of OHER is also discussed. The second section of the report describes ORNL facilities and resources used by the BER program. The third section addresses research management practices at ORNL. The fourth, fifth, and sixth sections address BER-funded research in progress, program accomplishments and research highlights, and program orientation for the remainder of FY 1992 through FY 1994, respectively. Work for non-BER sponsors is described in the seventh section, followed by a discussion of significant near and long-term issues facing BER work at ORNL in the eighth section. The last section provides a statistical summary of BER research at ORNL. Appendices supplement the above topics with additional detail.

  16. Modeling of electron energy spectra and mobilities in semi-metallic Hg1-xCdxTe quantum wells

    E-Print Network [OSTI]

    Melezhik, E O; Sizov, F F

    2015-01-01

    Electron mobility, energy spectra and intrinsic carrier concentrations in the n-type Hg0.32Cd0.68Te / Hg1-xCdxTe / Hg0.32Cd0.68Te quantum well (QW) in semi-metallic state are numerically modeled. Energy spectra and wave functions were calculated in the framework of the 8-band k-p Hamiltonian. In our model, electron scattering on longitudinal optical phonons, charged impurities, and holes has been taken into account, and the mobility has been calculated by an iterative solution of the Boltzmann transport equation. Our results show that the increase of the electron concentration in the well enhances the screening of the 2D electron gas, decreases the hole concentration, and can ultimately lead to a high electron mobility at liquid nitrogen temperatures. The increase of the electron concentration in the QW could be achieved in situ by delta-doping of barriers or by applying the top-gate potential. Our modeling has shown that for low molar composition x the concentration of holes in the well is high in a wide ran...

  17. OECM MCCI Small-Scale Water Ingression and Crust Strength Tests (SSWICS) SSWICS-2 final data report, Rev. 0 February 12, 2003.

    SciTech Connect (OSTI)

    Lomperski, S.; Farmer, M. T.; Kilsdonk, D.; Aeschlimann, B. (Nuclear Engineering Division)

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program at Argonne National Laboratory addressed the issue of the ability of water to cool and thermally stabilize a molten core/concrete interaction (MCCI) when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. However, due to the integral nature of these tests, several questions regarding the crust freezing behavior could not be adequately resolved. These questions include: (1) To what extent does water ingression into the crust increase the melt quench rate above the conduction-limited rate and how is this affected by melt composition and system pressure and (2) What is the fracture strength of the corium crust when subjected to a thermal-mechanical load and how does it depend upon the melt composition? A series of separate-effects experiments are being conducted to address these issues. The first employs an apparatus designed to measure the quench rate of a pool of corium ({approx}{phi}30 cm; up to 20 cm deep). The main parameter to be varied in these quench tests is the melt composition since it is thought to have a critical influence on the crust cracking behavior which, in turn, alters quench rate. The issue of crust strength will be addressed with a second apparatus designed to mechanically load the crust produced by the quench tests. This apparatus will measure the fracture strength of the crust while under a thermal load created by a heating element beneath the crust. The two apparatuses used to measure the melt quench rate and crust strength are jointly referred to as SSWICS (Small-Scale Water Ingression and Crust Strength). This report describes results of the second water ingression test, designated SSWICS-2. The test investigated the quench behavior of a 15 cm deep, fully oxidized PWR corium melt containing 8 wt% siliceous concrete decomposition products. The melt was quenched at nominally atmospheric pressure. The report includes a description of the test apparatus, the instrumentation used, plots of the recorded data, and data reduction to obtain an estimate of the corrected heat flux from the corium to the overlying water pool. A section of the report is devoted to calculations of the conduction-limited heat flux that accounts for heat losses to the crucible holding the corium. The remainder of the report describes post test examinations of the crust, which includes permeability and mechanical strength measurements, and chemical analysis.

  18. OECD MMCI Small-Scale Water Ingression and Crust Strength tests (SSWICS) SSWICS-1 final data report, Rev. 1 February 10, 2003.; Report, Rev. 1

    SciTech Connect (OSTI)

    Lomperski, S.; Farmer, M. T.; Kilsdonk, D.; Aeschlimann, B. (Nuclear Engineering Division)

    2011-05-23

    The Melt Attack and Coolability Experiments (MACE) program at Argonne National Laboratory addressed the issue of the ability of water to cool and thermally stabilize a molten core/concrete interaction (MCCI) when the reactants are flooded from above. These tests provided data regarding the nature of corium interactions with concrete, the heat transfer rates from the melt to the overlying water pool, and the role of noncondensable gases in the mixing processes that contribute to melt quenching. However, due to the integral nature of these tests, several questions regarding the crust freezing behavior could not be adequately resolved. These questions include: (1) To what extent does water ingression into the crust increase the melt quench rate above the conduction-limited rate and how is this affected by melt composition and system pressure; and (2) What is the fracture strength of the corium crust when subjected to a thermal-mechanical load and how does it depend upon the melt composition? A series of separate-effects experiments are being conducted to address these issues. The first employs an apparatus designed to measure the quench rate of a pool of corium ({approx}{phi}30 cm; up to 20 cm deep). The main parameter to be varied in these quench tests is the melt composition since it is thought to have a critical influence on the crust cracking behavior which, in turn, alters quench rate. The issue of crust strength will be addressed with a second apparatus designed to mechanically load the crust produced by the quench tests. This apparatus will measure the fracture strength of the crust while under a thermal load created by a heating element beneath the crust. The two apparatuses used to measure the melt quench rate and crust strength are jointly referred to as SSWICS (Small-Scale Water Ingression and Crust Strength). This report describes results of the first water ingression test, designated SSWICS-1. The test investigated the quench behavior of a 15 cm deep, fully oxidized PWR corium melt containing 8 wt% limestone/common sand concrete decomposition products. The melt was quenched at nominally atmospheric pressure. The report includes a description of the test apparatus, the instrumentation used, plots of the recorded data, and data reduction to obtain an estimate of the corrected heat flux from the corium to the overlying water pool. A section of the report is devoted to calculations of the conduction-limited heat flux that accounts for heat losses to the crucible holding the corium. The remainder of the report describes post test examinations of the crust, which includes permeability and mechanical strength measurements, and chemical analysis.

  19. Study of Multi-Scale Cloud Processes Over the Tropical Western Pacific Using Cloud-Resolving Models Constrained by Satellite Data

    SciTech Connect (OSTI)

    Dudhia, Jimy

    2013-03-12

    Clouds in the tropical western Pacific are an integral part of the large scale environment. An improved understanding of the multi-scale structure of clouds and their interactions with the environment is critical to the ARM (Atmospheric Radiation Measurement) program for developing and evaluating cloud parameterizations, understanding the consequences of model biases, and providing a context for interpreting the observational data collected over the ARM Tropical Western Pacific (TWP) sites. Three-dimensional cloud resolving models (CRMs) are powerful tools for developing and evaluating cloud parameterizations. However, a significant challenge in using CRMs in the TWP is that the region lacks conventional data, so large uncertainty exists in defining the large-scale environment for clouds. This project links several aspects of the ARM program, from measurements to providing improved analyses, and from cloud-resolving modeling to climate-scale modeling and parameterization development, with the overall objective to improve the representations of clouds in climate models and to simulate and quantify resolved cloud effects on the large-scale environment. Our objectives will be achieved through a series of tasks focusing on the use of the Weather Research and Forecasting (WRF) model and ARM data. Our approach includes: -- Perform assimilation of COSMIC GPS radio occultation and other satellites products using the WRF Ensemble Kalman Filter assimilation system to represent the tropical large-scale environment at 36 km grid resolution. This high-resolution analysis can be used by the community to derive forcing products for single-column models or cloud-resolving models. -- Perform cloud-resolving simulations using WRF and its nesting capabilities, driven by the improved regional analysis and evaluate the simulations against ARM datasets such as from TWP-ICE to optimize the microphysics parameters for this region. A cirrus study (Mace and co-authors) already exists for TWP-ICE using satellite and ground-based observations. -- Perform numerical experiments using WRF to investigate how convection over tropical islands in the Maritime Continent interacts with large-scale circulation and affects convection in nearby regions. -- Evaluate and apply WRF as a testbed for GCM cloud parameterizations, utilizing the ability of WRF to run on multiple scales (from cloud resolving to global) to isolate resolution and physics issues from dynamical and model framework issues. Key products will be disseminated to the ARM and larger community through distribution of data archives, including model outputs from the data assimilation products and cloud resolving simulations, and publications.

  20. The Uncorrelated Universe: Statistical Anisotropy and the Vanishing Angular Correlation Function in WMAP Years 1-3

    E-Print Network [OSTI]

    Craig J. Copi; Dragan Huterer; Dominik J. Schwarz; Glenn D. Starkman

    2006-05-31

    The large-angle (low-ell) correlations of the Cosmic Microwave Background (CMB) as reported by the Wilkinson Microwave Anisotropy Probe (WMAP) after their first year of observations exhibited statistically significant anomalies compared to the predictions of the standard inflationary big-bang model. We suggested then that these implied the presence of a solar system foreground, a systematic correlated with solar system geometry, or both. We re-examine these anomalies for the data from the first three years of WMAP's operation. We show that, despite the identification by the WMAP team of a systematic correlated with the equinoxes and the ecliptic, the anomalies in the first-year Internal Linear Combination (ILC) map persist in the three-year ILC map, in all-but-one case at similar statistical significance. The three-year ILC quadrupole and octopole therefore remain inconsistent with statistical isotropy -- they are correlated with each other (99.6% C.L.), and there are statistically significant correlations with local geometry, especially that of the solar system. The angular two-point correlation function at scales >60 degrees in the regions outside the (kp0) galactic cut, where it is most reliably determined, is approximately zero in all wavebands and is even more discrepant with the best fit LambdaCDM inflationary model than in the first-year data - 99.97% C.L. for the new ILC map. The full-sky ILC map, on the other hand, has a non-vanishing angular two-point correlation function, apparently driven by the region inside the cut, but which does not agree better with LambdaCDM. The role of the newly identified low-ell systematics is more puzzling than reassuring.

  1. An analysis on the mid-latitude scintillation and coherence frequency bandwidth using transionospheric VHF signals

    SciTech Connect (OSTI)

    Juang, Zhen [Los Alamos National Laboratory; Roussel-dupre, Robert [Los Alamos National Laboratory

    2008-01-01

    An analysis was perfonned on the mid-latitude scintillation and coherence frequency bandwidth (Fcoh) using transionospheric VHF signal data. The data include 1062 events spanning from November 1997 to June 2002. Each event records FORTE satellite received VHF signals from LAPP located at Los Alamos, New Mexico. Fcohs were derived to study scintillation characteristics on diurnal and seasonal variations, as well as changes due to solar and geomagnetic activities. Comparisons to the VHFIUHF coherence frequency bandwidth studies previously reported at equatorial and mid-latitude regions are made using a 4th power frequency dependence relationship. Furthennore, a wideband ionospheric scintillation model, WBMOD, was used to estimate Fcohs and compared with our VHF Fcoh values. Our analysis indicates mid-latitude scintillation characteristics that are not previously revealed. At the VHF bottom frequency range (3035 MHz), distinguished smaller Fcohs are found in time period from sunset to midnight, in wann season from May to August, and in low solar activity years. The effects of geomagnetic storm activity on Fcoh are characterized by a sudden transition at a Kp index of 50-60. Comparisons with median Fcohs estimated from other studies validated our VHF Fcohs for daytime while an order of magnitude larger Fcohs are found for nighttime, implying a time-dependent issue in applying the 4th order power relationship. Furthermore, comparisons with WBMOD-estimated Fcohs indicated generally matched median scintillation level estimates while differences do exist for those events undergoing high geomagnetic stonn activity which may imply underestimates of scintillation level by the WBMOD in the mid-latitude regions.

  2. Multivariate Non-Normality in the WMAP 1st Year Data

    E-Print Network [OSTI]

    Patrick Dineen; Peter Coles

    2005-11-29

    The extraction of cosmological parameters from microwave background observations relies on specific assumptions about the statistical properties of the data, in particular that the p-point distributions of temperature fluctuations are jointly-normal. Using a battery of statistical tests, we assess the multivariate Gaussian nature of the Wilkinson Microwave Anisotropy Probe (WMAP) 1st year data. The statistics we use fall into three classes which test different aspects of joint-normality: the first set assess the normality of marginal (one-point) distributions using familiar univariate methods; the second involves statistics that directly assess joint-normality; and the third explores the evidence of non-linearity in the relationship between variates. We applied these tests to frequency maps, `foreground-cleaned' assembly maps and all-sky CMB-only maps. The assembly maps are of particular interest as when combined with the kp2 mask, we recreate the region used in the computation of the angular power spectrum. Significant departures from normality were found in all the maps. In particular, the kurtosis coefficient, D'Agostino's statistic and bivariate kurtosis calculated from temperature pairs extracted from all the assembly maps were found to be non-normal at 99% confidence level. We found that the results were unaffected by the size of the Galactic cut and were evident on either hemisphere of the CMB sky. The latter suggests that the non-Gaussianity is not simply related to previous claims of north-south asymmetry or localized abnormalities detected through wavelet techniques.

  3. Band Structure of Strain-Balanced GaAsBi/GaAsN Super-lattices on GaAs

    SciTech Connect (OSTI)

    Hwang, J.; Phillips, J. D.

    2011-05-31

    GaAs alloys with dilute content of Bi and N provide a large reduction in band-gap energy with increasing alloy composition. GaAsBi/GaAsN heterojunctions have a type-II band alignment, where superlattices based on these materials offer a wide range for designing effective band-gap energy by varying superlattice period and alloy composition. The miniband structure and effective band gap for strain-balanced GaAsBi/GaAsN superlattices with effective lattice match to GaAs are calculated for alloy compositions up to 5% Bi and N using the k·p method. The effective band gap for these superlattices is found to vary between 0.89 and 1.32 eV for period thickness ranging from 10 to 100 Å. The joint density of states and optical absorption of a 40/40 Å GaAs0.96Bi0.04/GaAs0.98N0.02 superlattice are reported demonstrating a ground-state transition at 1.005 eV and first excited transition at 1.074 eV. The joint density of states is similar in magnitude to GaAs, while the optical absorption is approximately one order of magnitude lower due to the spatially indirect optical transition in the type-II structure. The GaAsBi/GaAsN system may provide a new material system with lattice match to GaAs in a spectral range of high importance for optoelectronic devices including solar cells, photodetectors, and light emitters.

  4. Magnetotail views at 33R{sub E}: IMP 8 magnetometer observations

    SciTech Connect (OSTI)

    Kaymaz, Z.; Siscoe, G.L. [Univ. of California, Los Angeles, CA (United States)] [Univ. of California, Los Angeles, CA (United States); Tsyganenko, N.A. [NASA Goddard Space Flight Center, Greenbelt, MD (United States)] [and others] [NASA Goddard Space Flight Center, Greenbelt, MD (United States); and others

    1994-05-01

    This paper presents magnetic field vector (B) maps, electric current vector (curl B) maps, magnetic force (JxB) contour maps, and total field contour maps covering the full tail cross section in the yz plane. THe maps are based on 16 years of 5-min averages of IMP 8 magnetic field data. During this time, IMP 8 traversed the tail between {minus}25R{sub E} and {minus}40R{sub E} in the x direction. Its average x distance was {minus}33R{sub E}. For this average distance the authors show separate maps for low and high dipole tilts, corresponding to equinox and northern hemisphere summer seasons. The low-tilt (equinox) maps show symmetrical field and current patterns; the high-tilt (solstice) maps show the cross-tail current sheet arcing above the equatorial diagonal in the center and dipping below it on the flanks. The shape of warped current sheet fits Fairfield`s displaced ellipse model fairly well. The distance at which the current sheet is hinged to the magnetic equator is found to be 9.88R{sub E} and is independent of Kp. The z profile of current density shows a central peak, 3R{sub E} full width at half maximum, and smaller, flanking shoulders. A Harris sheet profile with a 7R{sub E} thickness fits the B{sub x} profile. Though these are magnetic field data, the JxB maps clearly outline the plasma sheet. This approach also gives a 7R{sub E} thickness. Many of the average field and current features inferred and demonstrated in earlier studies are confirmed here; some of them are seen for the first time in full cross-section view. Among new features revealed are a large current vortex in the winter hemisphere lobe, a dawn-dusk asymmetry in the JxB force in the plasma sheet (it is stronger on the duskside), and a separation of the cross-tail current sheet into core and wing parts. 27 refs., 24 refs.