Sample records for xe rn uuo

  1. Zur Gleichverteilung im Rn Abstract: A seQuence in a compact set K in Rn is uniformly

    E-Print Network [OSTI]

    Michor, Peter W.

    , daE das erwahnte Ergebnis gar nichts mit der Kugel zu tun hat, sondern auch flir beliebige kompakte verwandten Problems. Ich danke den Herren H. Rindler, L. Schmetterer und K. Sigmund flir Hinweise und ergibt sich aus der Umkehrformel zur Fouriertransfor mation. Es ist namlich flir jedes xE Rn " i

  2. Intel® Advisor XE

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

    Advisor XE 2013 Threading Assistant Copyright 2012, Intel Corporation. All rights reserved. *Other brands and names are the property of their respective owners. Simplify and...

  3. Archaeological investigations in the Elm Creek Watershed, Runnels County, Texas: sites 41RN61, 41RN64, 41RN65, 41RN72, 41RN74, 41RN76

    E-Print Network [OSTI]

    Sanders, Calvin B

    2012-06-07T23:59:59.000Z

    . Data recovery, based on geomorphic investigations to resolve potential for subsurface cultural deposits, resulted in retrieval of representative samples of lithic assemblages from four sites (41RN61, 41RN64, 41RN65, 41RN74). These lithic assemblages...

  4. Cray XE6 Workshop

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on γ-Al2O3.Winter (Part 2) |IO COE Performance ofXE6Cray

  5. Special Appreciation Mr. Don Monteith, BSN, RN

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    Special Appreciation Pianist Mr. Don Monteith, BSN, RN Faculty Marshall Professor Jean Mc of Health Science Debbie Telford Pigram ASN,2000, Southwest Tennessee Community College BSN, 2008, Union

  6. Intel® Advisor XE

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFunInfrared Land SurfaceVirus-InfectedIntelligent Coatings forIntel® Advisor XE

  7. Absorption cross section of RN black hole

    E-Print Network [OSTI]

    Sini R.; V. C. Kuriakose

    2007-08-23T23:59:59.000Z

    The behavior of a charged scalar field in the RN black hole space time is studied using WKB approximation. In the present work it is assumed that matter waves can get reflected from the event horizon. Using this effect, the Hawking temperature and the absorption cross section for RN black hole placed in a charged scalar field are calculated. The absorption cross section $\\sigma _{abs}$ is found to be inversely proportional to square of the Hawking temperature of the black hole.

  8. Translational energy dependence of reaction mechanism: Xe++CH4?XeH++CH3

    E-Print Network [OSTI]

    Miller, G. D.; Strattan, L. W.; Cole, C. L.; Hierl, Peter M.

    1981-01-01T23:59:59.000Z

    The dynamics of the exoergic ion–molecule reaction Xe+(CH4,CH3)XeH+ were studied by chemical accelerator techniques over the relative translational energy range 0.2 to 8 eV. Results of the kinematicmeasurements are reported as scattering intensity...

  9. Berlin Heart Maryalice Gowen RN, BSN

    E-Print Network [OSTI]

    Kay, Mark A.

    Berlin Heart Maryalice Gowen RN, BSN LPCH CVICU-Mechanical Support Berlin Heart · With the Berlin Heart you have the ability to visualize both chambers ofthe VAD. · This allows you to assess/deposits. Thoratec vs. Berlin Heart · Thoratec · FDA approved · Equipment available in facility · a blood pump size

  10. High energy XeBr electric discharge laser

    DOE Patents [OSTI]

    Sze, Robert C. (Santa Fe, NM); Scott, Peter B. (Los Alamos, NM)

    1981-01-01T23:59:59.000Z

    A high energy XeBr laser for producing coherent radiation at 282 nm. The XeBr laser utilizes an electric discharge as the excitation source to minimize formation of molecular ions thereby minimizing absorption of laser radiation by the active medium. Additionally, HBr is used as the halogen donor which undergoes harpooning reactions with Xe.sub.M * to form XeBr*.

  11. Metal-organic frameworks for Xe/Kr separation

    DOE Patents [OSTI]

    Ryan, Patrick J.; Farha, Omar K.; Broadbelt, Linda J.; Snurr, Randall Q.; Bae, Youn-Sang

    2013-08-27T23:59:59.000Z

    Metal-organic framework (MOF) materials are provided and are selectively adsorbent to xenon (Xe) over another noble gas such as krypton (Kr) and/or argon (Ar) as a result of having framework voids (pores) sized to this end. MOF materials having pores that are capable of accommodating a Xe atom but have a small enough pore size to receive no more than one Xe atom are desired to preferentially adsorb Xe over Kr in a multi-component (Xe--Kr mixture) adsorption method. The MOF material has 20% or more, preferably 40% or more, of the total pore volume in a pore size range of 0.45-0.75 nm which can selectively adsorb Xe over Kr in a multi-component Xe--Kr mixture over a pressure range of 0.01 to 1.0 MPa.

  12. Metal-organic frameworks for Xe/Kr separation

    DOE Patents [OSTI]

    Ryan, Patrick J.; Farha, Omar K.; Broadbelt, Linda J.; Snurr, Randall Q.; Bae, Youn-Sang

    2014-07-22T23:59:59.000Z

    Metal-organic framework (MOF) materials are provided and are selectively adsorbent to xenon (Xe) over another noble gas such as krypton (Kr) and/or argon (Ar) as a result of having framework voids (pores) sized to this end. MOF materials having pores that are capable of accommodating a Xe atom but have a small enough pore size to receive no more than one Xe atom are desired to preferentially adsorb Xe over Kr in a multi-component (Xe--Kr mixture) adsorption method. The MOF material has 20% or more, preferably 40% or more, of the total pore volume in a pore size range of 0.45-0.75 nm which can selectively adsorb Xe over Kr in a multi-component Xe--Kr mixture over a pressure range of 0.01 to 1.0 MPa.

  13. Konvexe Mengen Def. Eine Teilmenge A Rn

    E-Print Network [OSTI]

    Matveev, Vladimir S.

    Punkte des Raumes Rn , und m1, ..., mk R0, so dass mind. ein mi > 0. Def. Der Schwerpunkt von x1, ..., xk mit Massen m1, ..., mk ist der Punkt a + 1�k i=1 mi k i=1 mi -axi = a + 1�k i=1 mi k i=1 mi (xi - a). Lemma 26 Schwerpunkt h¨angt nicht von der Wahl des Punktes a ab. Beweis. b + 1 k i=1 mi k i=1 mi

  14. Concentration Independent Calibration of ?-? Coincidence Detector Using 131mXe and 133Xe

    SciTech Connect (OSTI)

    McIntyre, Justin I.; Cooper, Matthew W.; Carman, April J.; Bowyer, Ted W.; Day, Anthony R.; Haas, Derek A.; Hayes, James C.; Heimbigner, Tom R.; Hubbard, Charles W.; Litke, Kevin E.; Ripplinger, Michael D.; Schrom, Brian T.; Suarez, Reynold

    2009-12-01T23:59:59.000Z

    Absolute efficiency calibration of radiometric detectors is frequently difficult and requires careful detector modeling and accurate knowledge of the radioactive source used. In the past we have calibrated the b-g coincidence detector of the Automated Radioxenon Sampler/Analyzer (ARSA) using a variety of sources and techniques which have proven to be less than desirable.[1] A superior technique has been developed that uses the conversion-electron (CE) and x-ray coincidence of 131mXe to provide a more accurate absolute gamma efficiency of the detector. The 131mXe is injected directly into the beta cell of the coincident counting system and no knowledge of absolute source strength is required. In addition, 133Xe is used to provide a second independent means to obtain the absolute efficiency calibration. These two data points provide the necessary information for calculating the detector efficiency and can be used in conjunction with other noble gas isotopes to completely characterize and calibrate the ARSA nuclear detector. In this paper we discuss the techniques and results that we have obtained.

  15. A Multilevel Model of RN Workgroup Intent to Stay

    E-Print Network [OSTI]

    Miller, Peggy A.

    2007-12-07T23:59:59.000Z

    An understanding of how determinants of RN intent to stay on the unit vary by unit type is essential for developing the targeted retention strategies that are an important component of efforts to address the evolving nursing shortage. Relationships...

  16. Cray XE6 Architecture John Shalf NERSC XE6 User Training

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on γ-Al2O3.Winter (Part 2) |IO COE Performance ofXE6

  17. Origin of anomalous Xe-H in nanodiamond stardust

    SciTech Connect (OSTI)

    Kratz, K. L. [Max-Planck-Institut für Chemie, Otto-Hahn-Institut, D-55128 Mainz, Germany and Fachbereich Chemie, Pharmazie und Geowissenschaften, Universitat Mainz, Mainz (United States); Farouqi, K. [Max-Planck-Institut für Chemie, Otto-Hahn-Institut, D-55128 Mainz, Germany and Zentrum für Astronomie der Universität Heidelberg, D-69120 Heidelberg (Germany); Hallmann, O. [Max-Planck-Institut für Chemie, Otto-Hahn-Institut, D-55128 Mainz (Germany); Pfeiffer, B. [II. Physikalisches Institut, Univ. Giessen, D-35392 Giessen (Germany); Ott, U. [Max-Planck-Institut für Chemie, Otto-Hahn-Institut, D-55128 Mainz (Germany); Univ. of West Hungary, H-9700 Szombathely (Hungary)

    2014-05-09T23:59:59.000Z

    Still today, the nucleosynthesis origin of Xe-H in presolar nanodiamonds is far from understood. Historically possible explanations were proposed by a secondary “neutron-burst” process occurring in the He- or C/O-shells of a type-II supernova (SN-II), which are, however, not fully convincing in terms of modern nucleosynthesis conditions. Therefore, we have investigated Xe isotopic abundance features that may be diagnostic for different versions of a classical, primary r-process in high-entropy-wind (HEW) ejecta of core-collapse SN-II. We report here on parameter tests for non-standard r-process variants, by varying electron abundances (Y{sub e}), ranges of entropies (S) and expansion velocities (V{sub exp}) with their correlated neutron-freezeout times (?(freeze)) and temperatures (T{sub 9}(freeze)). From this study, we conclude that a best fi to the measured Xe-H abundance ratios {sup i}Xe/{sup 136}Xe can be obtained with the high-S “main” component of a “cold” r-process variant.

  18. Kunstmatige Intelligentie (AI) Hoofdstuk 25 van Russell/Norvig = [RN

    E-Print Network [OSTI]

    Kosters, Walter

    AI Kunstmatige Intelligentie (AI) Hoofdstuk 25 van Russell/Norvig = [RN] Robotica voorjaar 2014 College 8, 8 april 2014 www.liacs.nl/home/kosters/AI/ 1 #12;AI--Robotica Robots Een robot is een "actieve schrijver Isaac Asimov (auteur van "I, Robot") zijn de drie (later vier) wetten van de robotica: 1. Een

  19. NON-CLOSED CURVES IN Rn WITH FINITE TOTAL FIRST

    E-Print Network [OSTI]

    Gilkey, Peter B

    ], and Kondo and Tanaka [14] have examined the global properties of the total curvature of a curveNON-CLOSED CURVES IN Rn WITH FINITE TOTAL FIRST CURVATURE ARISING FROM THE SOLUTIONS OF AN ODE P finite total first curvature. If all the roots of the associated characteristic polynomial are simple, we

  20. n-Selective Single Capture Following Xe{sup 18+} And Xe{sup 54+} Impact On Na(3s) And Na*(3p)

    SciTech Connect (OSTI)

    Otranto, S. [CONICET and Dto. de Fisica, Universidad Nacional del Sur, 8000 Bahia Blanca (Argentina); Olson, R. E. [Physics Department, Missouri University of Science and Technology, Rolla, MO 65401 (United States); Hasan, V. G.; Hoekstra, R. [KVI-Atomic and Molecular Physics, University of Groeningen (Netherlands)

    2011-06-01T23:59:59.000Z

    State selective single charge exchange n-level cross sections are calculated for collisions of Xe18+ and Xe54+ ions with Na(3s) and Na*(3p) over the energy range of 0.1 to 10.0 keV/amu. The CTMC method is used which includes all two-body interactions. Experimental state-selective cross sections and their corresponding transverse momentum spectra for Xe18+ are found to be in reasonable accord with the calculations.

  1. Luminescence characteristics of Xe{sub 2}Cl excimer molecules under pumping the dense Xe-CCl{sub 4} gas mixtures with a pulsed electron beam

    SciTech Connect (OSTI)

    Mis'kevich, A I; Jinbo, Guo [National Research Nuclear University 'Moscow Engineering Physics Institute', Moscow (Russian Federation)] [National Research Nuclear University 'Moscow Engineering Physics Institute', Moscow (Russian Federation)

    2013-05-31T23:59:59.000Z

    Temporal and spectral characteristics of the luminescence of dense Xe-CCl{sub 4} gas mixtures of different composition, excited by a 5-ns pulsed electron beam, were measured. The energy of the electrons amounted to 150 keV and the electron beam current pulse amplitude was 5 A. The gas mixtures were used containing Xe (38-700 Torr) and CCl{sub 4} (0.03-0.3 Torr). The studies were performed within the wavelength range 200-1200 nm using a MAYA-2000Pro diffraction grating spectrometer and a RIGOL DS 5022 ME fast digital oscilloscope. The luminescence lifetimes of the excimer molecules XeCl* (band with {lambda}{sub max} = 308 nm) and Xe{sub 2}Cl* (band with {lambda}{sub max} = 486 nm) were measured, as well as the constants of quenching by the components of the gas mixture for Xe{sub 2}Cl* molecules. A model of plasma-chemical processes for dense Xe-CCl{sub 4} gas mixtures with a very low content of the CCl{sub 4} donor is proposed. It is shown that in such 'poor' mixtures Xe{sub 2}Cl* molecules are mainly produced as a result of recombination of the Xe{sub 2}{sup +} and Cl{sup -} ions. (active media)

  2. Role of impact parameter in branching reactions: Chemical accelerator studies of the reaction Xe++CH4?XeCH3 ++H

    E-Print Network [OSTI]

    Miller, G. D.; Strattan, L. W.; Hierl, Peter M.

    1981-01-01T23:59:59.000Z

    Integral reaction cross sections and product velocity distributions have been measured for the ion–molecule reaction Xe+(CH4,H)XeCH3 + over the relative reactant translational energy range of 0.7–5.5 eV by chemical accelerator techniques...

  3. Search for Neutrinoless Double-Beta Decay in 136 Xe with EXO-200

    E-Print Network [OSTI]

    Piepke, Andreas G.

    Search for Neutrinoless Double-Beta Decay in 136 Xe with EXO-200 M. Auger,1 D. J. Auty,2 P. S on a search for neutrinoless double-beta decay of 136Xe with EXO-200. No signal is observed for an exposure a lower limit on the half-life of the neutrinoless double-beta decay T0#12;#12; 1=2 ð136Xe� > 1:6 � 1025

  4. E-Print Network 3.0 - ar kr xe Sample Search Results

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

    1. The mechanism... report an experiment designed to study the trapping of Xe by sublimation - condensation process... of anthracite. This ex- periment allowed us to probe...

  5. I-XE ANALYSES OF TAGISH LAKE MAGNETITE AND MONAHANS HALITE. A. Busfield1 , J. D. Gil-

    E-Print Network [OSTI]

    Grossman, Lawrence

    - leases were dominated by iodine-derived xenon (129 Xe/132 Xe > 10 consistently). This sample produced of solar sys- tem history. Acknowledgements: We are grateful to R. Wieler for providing the halite grain

  6. First result of the experimental search for the 2K-capture of Xe-124 with the copper proportional counter

    E-Print Network [OSTI]

    Yu. M. Gavrilyuk; A. M. Gangapshev; V. V. Kazalov; V. V. Kuzminov; S. I. Panasenko; S. S. Ratkevich; D. A. Tekueva; S. P. Yakimenko

    2014-04-22T23:59:59.000Z

    First result of experiment for searching of 2K-capture of Xe-124 with the large-volume copper proportional counter is given. The 12 litre sample with 63.3% (44 g) of Xe-124 was used in measurements. The limit on the half-life of Xe-124 with regard to 2K(2\

  7. GraXe, graphene and xenon for neutrinoless double beta decay searches

    E-Print Network [OSTI]

    J. J. Gomez-Cadenas; F. Guinea; M. M. Fogler; M. I. Katsnelson; J. Martin-Albo; F. Monrabal; J. Muñoz-Vidal

    2012-02-23T23:59:59.000Z

    We propose a new detector concept, GraXe (to be pronounced as grace), to search for neutrinoless double beta decay in Xe-136. GraXe combines a popular detection medium in rare-event searches, liquid xenon, with a new, background-free material, graphene. In our baseline design of GraXe, a sphere made of graphene-coated titanium mesh and filled with liquid xenon (LXe) enriched in the Xe-136 isotope is immersed in a large volume of natural LXe instrumented with photodetectors. Liquid xenon is an excellent scintillator, reasonably transparent to its own light. Graphene is transparent over a large frequency range, and impermeable to the xenon. Event position could be deduced from the light pattern detected in the photosensors. External backgrounds would be shielded by the buffer of natural LXe, leaving the ultra-radiopure internal volume virtually free of background. Industrial graphene can be manufactured at a competitive cost to produce the sphere. Enriching xenon in the isotope Xe-136 is easy and relatively cheap, and there is already near one ton of enriched xenon available in the world (currently being used by the EXO, KamLAND-Zen and NEXT experiments). All the cryogenic know-how is readily available from the numerous experiments using liquid xenon. An experiment using the GraXe concept appears realistic and affordable in a short time scale, and its physics potential is enormous.

  8. GraXe, graphene and xenon for neutrinoless double beta decay searches

    SciTech Connect (OSTI)

    Gómez-Cadenas, J.J.; Martín-Albo, J.; Monrabal, F.; Vidal, J. Muñoz [Instituto de Física Corpuscular (IFIC), CSIC and Universitat de Valencia, Calle Catedrático José Beltrán, 2, 46980 Valencia (Spain); Guinea, F. [Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Calle Sor Juana Inés de la Cruz, 3, 28049 Madrid (Spain); Fogler, M.M. [Department of Physics, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093 (United States); Katsnelson, M.I., E-mail: gomez@mail.cern.ch, E-mail: paco.guinea@icmm.csic.es, E-mail: mfogler@ucsd.edu, E-mail: katsnel@sci.kun.nl, E-mail: justo.martin-albo@ific.uv.es, E-mail: francesc.monrabal@ific.uv.es, E-mail: jmunoz@ific.uv.es [Institute for Molecules and Materials, Radboud University Nijmegen, Heijendaalseweg 135, 6525 AJ Nijmegen (Netherlands)

    2012-02-01T23:59:59.000Z

    We propose a new detector concept, GraXe (to be pronounced as grace), to search for neutrinoless double beta decay in {sup 136}XE. GraXe combines a popular detection medium in rare-event searches, liquid xenon, with a new, background-free material, graphene. In our baseline design of GraXe, a sphere made of graphene-coated titanium mesh and filled with liquid xenon (LXe) enriched in the {sup 136}XE isotope is immersed in a large volume of natural LXe instrumented with photodetectors. Liquid xenon is an excellent scintillator, reasonably transparent to its own light. Graphene is transparent over a large frequency range, and impermeable to the xenon. Event position could be deduced from the light pattern detected in the photosensors. External backgrounds would be shielded by the buffer of natural LXe, leaving the ultra-radiopure internal volume virtually free of background. Industrial graphene can be manufactured at a competitive cost to produce the sphere. Enriching xenon in the isotope {sup 136}XE is easy and relatively cheap, and there is already near one ton of enriched xenon available in the world (currently being used by the EXO, KamLAND-Zen and NEXT experiments). All the cryogenic know-how is readily available from the numerous experiments using liquid xenon. An experiment using the GraXe concept appears realistic and affordable in a short time scale, and its physics potential is enormous.

  9. Octupole collectivity in $^{220}$Rn and $^{224}$Ra

    E-Print Network [OSTI]

    Gaffney, Liam Paul

    Collective properties of the radioactive nuclei $^{220}$Rn and $^{224}$Ra have been studied via Coulomb excitation of a $2.8$~A.MeV radioactive ion beam (RIB) incident upon $^{60}$Ni, $^{112,114}$Cd and $^{120}$Sn targets. The experiments took place at the REX-ISOLDE RIB facility, CERN. De-excitation $gamma$-ray yields following multiple-step Coulomb excitation were detected in coincidence with recoiling target nuclei in the Miniball spectrometer. For the first time, $B(E3;3^{+} ightarrow0^{+})$ values have been directly measured with a radioactive ion beam. In the process, $^{224}$Ra becomes the heaviest post-accelerated RIB to date at ISOLDE (with the possible exception of the quasi-stable $^{238}$U). The measurements presented in this thesis represent a tripling of the number of nuclei around $Zsimeq88$ and $Nsimeq134$, for which direct measurements of the octupole collectivity have been performed. The only previous measurements being for the relatively long-lived $^{226}$Ra. The $gamma$-ray yields, in con...

  10. KELLY ALLRED, PhD, RN-BC, CNE University of Central Florida College of Nursing

    E-Print Network [OSTI]

    Wu, Shin-Tson

    KELLY ALLRED, PhD, RN-BC, CNE University of Central Florida College of Nursing 12201 Research Parkway Suite 455 Orlando, FL 32826 (407) 823-0160 Office (407) 823-5675 Fax Kelly

  11. E-Print Network 3.0 - antagonist gene il-1rn Sample Search Results

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

    Information 1 Non-centrality Parameters Summary: Position Gene Control Fam Statistic df P-value IL1RN dad&mom 121 THP 5.17 1 0.023 439154 115064289 IL1... 115068445...

  12. Influence of Xe{sub 2}{sup +} ions on the micro-hollow cathode discharge driven by thermionic emission

    SciTech Connect (OSTI)

    Levko, D. [LAPLACE (Laboratoire Plasma et Conversion d'Energie), Universite de Toulouse, UPS, INPT Toulouse, 118 Route de Narbonne, F-31062 Toulouse Cedex 9 (France)] [LAPLACE (Laboratoire Plasma et Conversion d'Energie), Universite de Toulouse, UPS, INPT Toulouse, 118 Route de Narbonne, F-31062 Toulouse Cedex 9 (France); Bliokh, Y. P.; Krasik, Ya. E. [Department of Physics, Technion, 32000 Haifa (Israel)] [Department of Physics, Technion, 32000 Haifa (Israel)

    2014-04-15T23:59:59.000Z

    The influence of Xe{sub 2}{sup +} dimer ions and excited Xe* atoms on the hollow cathode discharge driven by electron thermionic emission is studied using two-dimensional Particle-in-Cell Monte Carlo Collisions modeling. A comparison with the results of two-component (electrons and Xe{sup +} ions) plasma modeling showed that the presence of the Xe{sub 2}{sup +} dimer ions and excited Xe* atoms in the plasma affects the plasma parameters (density, potential, and ion fluxes toward the cathode). The influence of Xe{sub 2}{sup +} ions and Xe* atoms on the plasma sheath parameters, such as thickness and the ion velocity at the sheath edge, is analyzed.

  13. Absorption cross section of RN and SdS extremal black hole

    E-Print Network [OSTI]

    Sini R; Nijo Varghese; V C Kuriakose

    2008-02-29T23:59:59.000Z

    The nature of scalar wave functions near the horizon of Reissner Nordstrom (RN) extremal and Schwarzschild-de Sitter (SdS) extremal black holes are found using WKB approximation and the effect of reflection of waves from the horizon. The absorption cross section $\\sigma_{abs}$ when RN extremal and SdS extremal black holes placed in a Klein-Gordon field is calculated.

  14. DEVELOPMENT AND DESIGN OF A MULTI-COLUMN EXPERIMENTAL SETUP FOR KR/XE SEPARATION

    SciTech Connect (OSTI)

    Troy G. Garn; Mitchell Greenhalgh; Tony Watson

    2014-12-01T23:59:59.000Z

    As a precursor to FY-15 Kr/Xe separation testing, design modifications to an existing experimental setup are warranted. The modifications would allow for multi-column testing to facilitate a Xe separation followed by a Kr separation using engineered form sorbents prepared using an INL patented process. A new cooling apparatus capable of achieving test temperatures to -40° C and able to house a newly designed Xe column was acquired. Modifications to the existing setup are being installed to allow for multi-column testing and gas constituent analyses using evacuated sample bombs. The new modifications will allow for independent temperature control for each column enabling a plethora of test conditions to be implemented. Sample analyses will be used to evaluate the Xe/Kr selectivity of the AgZ-PAN sorbent and determine the Kr purity of the effluent stream following Kr capture using the HZ-PAN sorbent.

  15. Wetting transition behavior of Xe on Cs and Cs/graphite Stefano Curtarolo,1,

    E-Print Network [OSTI]

    Curtarolo, Stefano

    Wetting transition behavior of Xe on Cs and Cs/graphite Stefano Curtarolo,1, * Milton W. Cole,2 surface, covered by a monolayer of Cs. With data obtained from grand canonical Monte Carlo simulations

  16. Study of gas flow dynamics in porous and granular media with laser-polarized ¹²?Xe NMR

    E-Print Network [OSTI]

    Wang, Ruopeng, 1972-

    2005-01-01T23:59:59.000Z

    This thesis presents Nuclear Magnetic Resonance (NMR) studies of gas flow dynamics in porous and granular media by using laser-polarized ¹²?Xe . Two different physical processes, the gas transport in porous rock cores and ...

  17. Progress towards an optimized ¹²?Xe / ³He Zeeman maser and a test of boost symmetry

    E-Print Network [OSTI]

    Canè, Federico

    2006-01-01T23:59:59.000Z

    We report on a search for an annual variation of a daily sidereal modulation of the frequency difference between co-located ¹²?Xe and ³He Zeeman masers that sets a stringent limit on boost-dependent Lorentz and CPT violation ...

  18. Study of the effect of {sup 135}Xe poison on the temperature coefficient of TRIGA fuel

    SciTech Connect (OSTI)

    Iorgulis, Constantin [TRIGA Reactor Facility, Institute for Nuclear Research, Pitesti (Romania)

    1992-07-01T23:59:59.000Z

    A study of the influence of {sup 135}Xe on the prompt negative temperature coefficient of the 14-MW Romanian TRIGA reactor has been performed. Because of its large absorption cross section below 0.1 eV, we expected that {sup 135}Xe might make a positive contribution to the temperature coefficient because the higher-energy neutrons are less likely to be absorbed by the Xe. This effect would be largest about 16 hours after reactor shutdown. In order to investigate this phenomenon, we have performed cell and core calculations for various fuel temperatures, burnups, and {sup 135}Xe levels. These calculations indeed show a positive contribution of {sup 135}Xe to the temperature coefficient, especially for high burnups, where little {sup 167}Er remains to absorb the higher-energy neutrons. Work is in progress to evaluate the effect of the smaller negative temperature coefficient on the consequences of reactivity insertion accidents in unfavorable situations of {sup 135}Xe poisoning of the Romanian TRIGA core. (author)

  19. Search for a permanent electric dipole moment using liquid 129Xe

    SciTech Connect (OSTI)

    PROFESSOR MICHAEL ROMALIS

    2008-11-24T23:59:59.000Z

    Search for an electric dipole moment is one of the best motivated low-energy approaches for investigating physics beyond the Standard Model. Our experimental effort is focused on improving the limit on EDM in liquid 129Xe to put constraints on nuclear CP-violating interactions. High nuclear spin density and high electrical breakdown strength make 129Xe a promising medium for EDM searches. At the time the project started, the transverse nuclear spin relaxation time T2 of 129Xe was unknown. We made measurements of T2 using NMR spin-echo techniques and found that it is exceeds 1300 sec, the longest relaxation time ever measured in a liquid [1]. We also began to investigate non-linear dipolar interaction effects in a high-density spin-polarized liquid Xe. In the second iteration of the experiment we setup a high-Tc SQUID system in magnetic shields and performed detailed studies of Xe spin precession. We developed a model for non-linear dipolar interactions and found that for one set of conditions non-linear interactions can delay spin dephasing due to magnetic field gradients, while for another set of conditions they can lead to exponential amplification of the spin precession signals [2]. Our experimental data were in good quantitative agreement with predictions of the model. We also developed a series of numerical simulations to understand various imperfections in the system and made detailed experimental measurements to confirm these numerical predictions [3]. We demonstrated that non-linear interactions can amplify small precession signals and achieved an amplification factor of 10 [4]. This general phenomenon can be used in other precision measurements with non-linear interactions. We also explored practical applications of the liquid Xe system that we developed. We demonstrated that by mixing Xe with organic liquids, such as cyclopentane, one can enhance the proton spin polarization by a factor of 106 [5]. We have used this technique to perform the first measurement of the scalar J-coupling between nuclear spins in van-der-Waals molecules, something that has never been observed before. More recently, we constructed a liquid-He apparatus to acquire Xe spin precession data using a low-Tc SQUID and achieved a signal-to-noise ratio of 106. We are currently investigating factors affecting the stability of Xe spin precession signals in this system using a superconducting magnetic shield and a persistent current magnetic field coil.

  20. Measurements of 222Rn, 220Rn, and CO Emissions in Natural CO2 Fields in Wyoming: MVA Techniques for Determining Gas Transport and Caprock Integrity

    SciTech Connect (OSTI)

    Kaszuba, John; Sims, Kenneth

    2014-09-30T23:59:59.000Z

    An integrated field-laboratory program evaluated the use of radon and CO2 flux measurements to constrain source and timescale of CO2 fluxes in environments proximate to CO2 storage reservoirs. By understanding the type and depth of the gas source, the integrity of a CO2 storage reservoir can be assessed and monitored. The concept is based on correlations of radon and CO2 fluxes observed in volcanic systems. This fundamental research is designed to advance the science of Monitoring, Verification, and Accounting (MVA) and to address the Carbon Storage Program goal of developing and validating technologies to ensure 99 percent storage performance. Graduate and undergraduate students conducted the research under the guidance of the Principal Investigators; in doing so they were provided with training opportunities in skills required for implementing and deploying CCS technologies. Although a final method or “tool” was not developed, significant progress was made. The field program identified issues with measuring radon in environments rich in CO2. Laboratory experiments determined a correction factor to apply to radon measurements made in CO2-bearing environments. The field program also identified issues with radon and CO2-flux measurements in soil gases at a natural CO2 analog. A systematic survey of radon and CO2 flux in soil gases at the LaBarge CO2 Field in Southwest Wyoming indicates that measurements of 222Rn (radon), 220Rn (thoron), and CO2 flux may not be a robust method for monitoring the integrity of a CO2 storage reservoir. The field program was also not able to correlate radon and CO2 flux in the CO2-charged springs of the Thermopolis hydrothermal system. However, this part of the program helped to motivate the aforementioned laboratory experiments that determined correction factors for measuring radon in CO2-rich environments. A graduate student earned a Master of Science degree for this part of the field program; she is currently employed with a geologic consulting company. Measurement of radon in springs has improved significantly since the field program first began; however, in situ measurement of 222Rn and particularly 220Rn in springs is problematic. Future refinements include simultaneous salinity measurements and systematic corrections, or adjustments to the partition coefficient as needed for more accurate radon concentration determination. A graduate student earned a Master of Science degree for this part of the field program; he is currently employed with a geologic consulting company. Both graduate students are poised to begin work in a CCS technology area. Laboratory experiments evaluated important process-level fundamentals that effect measurements of radon and CO2. Laboratory tests established that fine-grained source minerals yield higher radon emissivity compared to coarser-sized source minerals; subtleties in the dataset suggest that grain size alone is not fully representative of all the processes controlling the ability of radon to escape its mineral host. Emissivity for both 222Rn and 220Rn increases linearly with temperature due to reaction of rocks with water, consistent with faster diffusion and enhanced mineral dissolution at higher temperatures. The presence of CO2 changes the relative importance of the factors that control release of radon. Emissivity for both 222Rn and 220Rn in CO2-bearing experiments is greater at all temperatures compared to the experiments without CO2, but emissivity does not increase as a simple function of temperature. Governing processes may include a balance between enhanced dissolution versus carbonate mineral formation in CO2-rich waters.

  1. Review of {sup 222}Rn in natural gas produced from unconventional sources

    SciTech Connect (OSTI)

    Gogolak, C.V.

    1980-11-01T23:59:59.000Z

    A review of the literature on trace radioactivity in natural gas and natural gas products has been performed and the consequent radioactivity concentrations and dose rates due to natural radioactive elements in natural gas produced from Devonian shale wells, western tight gas sands, geo-pressurized aquifiers and coal beds have been studied. Preliminary data on {sup 222}Rn concentrations from these energy sources fall within the range observed for more conventional sources. Gas produced from reservoirs with higher than average natural /sup 238/U higher than average levels of {sup 222}Rn. Massive fracturing techniques do not appear to raise the relative concentration of radon in natural gas.

  2. Xe films on a decagonal Al-Ni-Co quasicrystal surface

    E-Print Network [OSTI]

    Wahyu Setyawan; Nicola Ferralis; Renee D. Diehl; Milton W. Cole; Stefano Curtarolo

    2006-08-08T23:59:59.000Z

    The grand canonical Monte Carlo method is employed to study the adsorption of Xe on a quasicrystalline Al-Ni-Co surface. The calculation uses a semiempirical gas-surface interaction, based on conventional combining rules and the usual Lennard-Jones Xe-Xe interaction. The resulting adsorption isotherms and calculated structures are consistent with the results of LEED experimental data. In this paper we focus on five features not discussed earlier (Phys. Rev. Lett. 95, 136104 (2005)): the range of the average density of the adsorbate, the order of the transition, the orientational degeneracy of the ground state, the isosteric heat of adsorption of the system, and the effect of the vertical cell dimension.

  3. Detection of $^{133}$Xe from the Fukushima nuclear power plant in the upper troposphere above Germany

    E-Print Network [OSTI]

    Simgen, Hardy; Aufmhoff, Heinfried; Baumann, Robert; Kaether, Florian; Lindemann, Sebastian; Rauch, Ludwig; Schlager, Hans; Schlosser, Clemens; Schumann, Ulrich

    2013-01-01T23:59:59.000Z

    After the accident in the Japanese Fukushima Dai-ichi nuclear power plant in March 2011 large amounts of radioactivity were released and distributed in the atmosphere. Among them were also radioactive noble gas isotopes which can be used as tracers to probe global atmospheric circulation models. This work presents unique measurements of the radionuclide $^{133}$Xe from Fukushima in the upper troposphere above Germany. The measurements involve air sampling in a research jet aircraft followed by chromatographic xenon extraction and ultra-low background gas counting with miniaturized proportional counters. With this technique a detection limit of the order of 100 $^{133}$Xe atoms in liter-scale air samples (corresponding to about 100 mBq/m$^3$) is achievable. Our results proof that the $^{133}$Xe-rich ground level air layer from Fukushima was lifted up to the tropopause and distributed hemispherically. Moreover, comparisons with ground level air measurements indicate that the arrival of the radioactive plume in ...

  4. Near-yrast, medium-spin structure of {sup 143}Xe

    SciTech Connect (OSTI)

    Rzaca-Urban, T. [Faculty of Physics, University of Warsaw, ulica Hoza 69, PL-00-681 Warsaw (Poland); Urban, W. [Faculty of Physics, University of Warsaw, ulica Hoza 69, PL-00-681 Warsaw (Poland); Institut Laue-Langevin, 6 rue J. Horowitz, F-38042 Grenoble Cedex 9 (France); Pinston, J. A. [Laboratoire de Physique Subatomique et de Cosmologie, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex (France); Smith, A. G. [School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Ahmad, I. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

    2011-06-15T23:59:59.000Z

    Excited states in {sup 143}Xe, populated in spontaneous fission of {sup 248}Cm, are studied by means of {gamma} spectroscopy using the EUROGAM 2 Ge array. We identify three rotational bands in {sup 143}X: a decoupled band originating from the i{sub 13/2} neutron excitation, a strongly coupled band based on the 5/2{sup -} ground state, and a decoupled band based on the 322.9-keV level with spin 9/2. The new excitation scheme of {sup 143}Xe is compared to quasiparticle-rotor model calculations, performed with a reflection-symmetric potential.

  5. Structure and heat capacity of Ne and Xe adsorbed on a bundle of carbon nanotubes

    E-Print Network [OSTI]

    Daniel E. Shai; Nathan M. Urban; Milton W. Cole

    2007-02-08T23:59:59.000Z

    The structural and thermal properties of Ne and Xe gases adsorbed on the outer surface of a large nanotube bundle have been evaluated with computer simulation. The potential energy model and numerical techniques were used previously to study Ar [N. M. Urban, S. M. Gatica, M. W. Cole, and J. L. Riccardo, ``Correlation functions and thermal properties of Ar adsorbed on the external surface of a bundle of carbon nanotubes'', Phys. Rev. B 71, 245410 (2005)]. Heat capacity results for Ne and Xe exhibit peaks associated with reordering and ``stripe'' melting transitions for these gases.

  6. Observation of Two-Neutrino Double-Beta Decay in Xe-136 with EXO-200

    SciTech Connect (OSTI)

    Ackerman, N.; /SLAC; Aharmim, B.; /Laurentian U.; Auger, M.; /Bern U.; Auty, D.J.; /Alabama U.; Barbeau, P.S.; Barry, K.; Bartoszek, L.; /Stanford U., Phys. Dept.; Beauchamp, E.; /Laurentian U.; Belov, V.; /Moscow, ITEP; Benitez-Medina, C.; /Colorado State U.; Breidenbach, M.; /SLAC; Burenkov, A.; /Moscow, ITEP; Cleveland, B.; /Laurentian U.; Conley, R.; Conti, E.; /SLAC; Cook, J.; /Massachusetts U., Amherst; Cook, S.; /Colorado State U.; Coppens, A.; /Carleton U.; Counts, I.; /Stanford U., Phys. Dept.; Craddock, W.; /SLAC; Daniels, T.; /Massachusetts U., Amherst /Moscow, ITEP /Maryland U. /Stanford U., Phys. Dept. /Alabama U. /Maryland U. /Moscow, ITEP /Stanford U., Phys. Dept. /Laurentian U. /Carleton U. /Colorado State U. /Laurentian U. /Munich, Tech. U. /Bern U. /SLAC /Bern U. /Carleton U. /Stanford U., Phys. Dept. /Carleton U. /Maryland U. /Colorado State U. /SLAC /Carleton U. /SLAC /Alabama U. /SLAC /Moscow, ITEP /Indiana U. /Stanford U., Phys. Dept. /Moscow, ITEP /Stanford U., Phys. Dept. /Massachusetts U., Amherst /Seoul U. /Carleton U. /Stanford U., Phys. Dept.; /more authors..

    2012-09-14T23:59:59.000Z

    We report the observation of two-neutrino double-beta decay in {sup 136}Xe with T{sub 1/2} = 2.11 {+-} 0.04(stat) {+-} 0.21(syst) x 10{sup 21} yr. This second-order process, predicted by the standard model, has been observed for several nuclei but not for {sup 136}Xe. The observed decay rate provides new input to matrix element calculations and to the search for the more interesting neutrinoless double-beta decay, the most sensitive probe for the existence of Majorana particles and the measurement of the neutrino mass scale.

  7. Collisional {sup 3}He and {sup 129}Xe Frequency Shifts in Rb-Noble-Gas Mixtures

    SciTech Connect (OSTI)

    Ma, Z. L.; Sorte, E. G.; Saam, B. [Department of Physics and Astronomy, University of Utah, 115 South 1400 East, Salt Lake City, Utah, 84112-0830 (United States)

    2011-05-13T23:59:59.000Z

    The Fermi-contact interaction that characterizes collisional spin exchange of a noble gas with an alkali-metal vapor also gives rise to NMR and EPR frequency shifts of the noble-gas nucleus and the alkali-metal atom, respectively. We have measured the enhancement factor {kappa}{sub 0} that characterizes these shifts for Rb-{sup 129}Xe to be 493{+-}31, making use of the previously measured value of {kappa}{sub 0} for Rb-{sup 3}He. This result allows accurate {sup 129}Xe polarimetry with no need to reference a thermal-equilibrium NMR signal.

  8. Evolution of Topological Order in Xe Films on a Quasicrystal Surface Stefano Curtarolo,1,* Wahyu Setyawan,1

    E-Print Network [OSTI]

    Curtarolo, Stefano

    Evolution of Topological Order in Xe Films on a Quasicrystal Surface Stefano Curtarolo,1,* Wahyu of a physically adsorbed gas on a quasicrystal- line surface Xe on decagonal Al-Ni-Co. The grand canonical Monte- tural properties employs grand canonical Monte Carlo (GCMC) simulations, with which we have extensive

  9. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N 66/2012

    E-Print Network [OSTI]

    Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204-740 - Natal - RN - BRASIL - FONE: (84) 3204 9100 - - Criação de múltiplos estilos de Waypoints, para mapas

  10. Measurement of XeI and XeII velocity in the near exit plane of a low-power Hall effect thruster by light induced fluorescence spectroscopy

    SciTech Connect (OSTI)

    Dancheva, Y. [CNISM, University of Siena, CSC and DSFTA, via Roma 56, 53100 Siena (Italy); Biancalana, V. [CNISM, University of Siena, CSC and DIISM, via Roma 56, 53100 Siena (Italy); Pagano, D.; Scortecci, F. [Aerospazio Tecnologie Srl., via Provinciale Nord 42a, 53040 Rapolano Terme (Italy)

    2013-06-15T23:59:59.000Z

    Near exit plane non-resonant light induced fluorescence spectroscopy is performed in a Hall effect low-power Xenon thruster at discharge voltage of 250 V and anode flow rate of 0.7 mg/s. Measurements of the axial and radial velocity components are performed, exciting the 6s{sup 2}[3/2]{sub 2}{sup o}{yields}6p{sup 2}[3/2]{sub 2} transition at 823.16 nm in XeI and the 5d[4]{sub 7/2}{yields}6p[3]{sub 5/2}{sup o} transition at 834.724 nm in XeII. No significant deviation from the thermal velocity is observed for XeI. Two most probable ion velocities are registered at a given position with respect to the thruster axis, which are mainly attributed to different areas of creation of ions inside the acceleration channel. The spatial resolution of the set-up is limited by the laser beam size (radius of the order of 0.5 mm) and the fluorescence collection optics, which have a view spot diameter of 8 mm.

  11. COMPUTER SCIENCE @ UCI >>> WhaT dId yOU lEaRN?

    E-Print Network [OSTI]

    Barrett, Jeffrey A.

    COMPUTER SCIENCE @ UCI >>> WhaT dId yOU lEaRN? My COURSES havE INClUdEd: Computer Graphics I these environments with avatars. Embedded Computing Systems I designed an intelligent hexapod robot that used optical Languages I built a personnel-scheduling application that integrated components written in multiple computer

  12. A survey of {sup 222}Rn concentrations in domestic water supplies of Iran

    SciTech Connect (OSTI)

    Sohrabi, M.; Alirezazadeh, N.; Ahmadi, H.T. [Atomic Energy Organization of Iran, Tehran (Iran, Islamic Republic of)

    1998-10-01T23:59:59.000Z

    As part of a national program to determine public exposure to natural radiation, {sup 222}Rn concentrations were determined in domestic water supplies, including ground and surface waters, in 23 provincial centers using a liquid scintillation counting technique. The minimum and maximum mean concentrations of {sup 222}Rn in ground water were, respectively, 7.9 {+-} 4.5 kBq m{sup {minus}3} in Sanandaj and 46.5 {+-} 11.5 kBq m{sup {minus}3} in Tehran with an overall national mean value of 21 {+-} 8.3 kBq m{sup {minus}3}. The {sup 222}Rn concentrations in surface waters ranged from less than 1 to 7 kBq m{sup {minus}3} with a mean value of 3.9 {+-} 1.9 kBq m{sup {minus}3}. The mean concentration of {sup 222}Rn in tap water in different parts of Tehran is 3.8 {+-} 1.1 kBq m{sup {minus}3}. The results are presented and discussed in this paper.

  13. Kinetics and radiative processes in Xe/I{sub 2} inductively coupled rf discharges at low pressure

    SciTech Connect (OSTI)

    Barnes, P.N.; Verdeyen, J.T.; Kushner, M.J. [Univ. of Illinois, Urbana, IL (United States). Dept. of Electrical and Computer Engineering

    1996-12-31T23:59:59.000Z

    The environmental concern over the presence of mercury in conventional fluorescent lamps has motivated research into alternative electrically efficient near UV plasma lighting sources. One such candidate is multi-wavelength UV emission from Xe/I{sub 2} mixtures, including excimer radiation from XeI at 253 nm. Previous studies of the XeI system were performed at high pressures and were intended for laser applications. Practical Xe/I{sub 2} lamps will likely operate in the 0.5--10 torr regime and use electrodeless excitation to avoid issues related to electrode erosion by the halogen. In this paper, the authors report on an experimental investigation of low pressure, inductively coupled plasmas sustained in Xe/I{sub 2} mixtures. The goals of this work are to characterize the UV emission and determine excitation mechanisms in a parameter space of interest to lighting applications.

  14. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N 47/2012

    E-Print Network [OSTI]

    Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204.300 W; #12;Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84 diâmetro Unid. 2 #12;Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE

  15. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N 36/2012

    E-Print Network [OSTI]

    Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204 9100 - 4 Eletrônica de Preços. #12;Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL

  16. Zero electron kinetic energy spectroscopy of the XeCl Thomas Lenzer,a)

    E-Print Network [OSTI]

    Neumark, Daniel M.

    measurements for the neutral state we construct a Morse­Morse-switching­van der Waals model potential functionZero electron kinetic energy spectroscopy of the XeCl� anion Thomas Lenzer,a) Ivan Yourshaw, Berkeley, California 94720 Received 9 November 2001; accepted 21 December 2001 Zero electron kinetic energy

  17. Zero electron kinetic energy and photoelectron spectroscopy of the XeI anion

    E-Print Network [OSTI]

    Neumark, Daniel M.

    spectroscopic data we construct model potentials for the anion and three neutral states, which are comparedZero electron kinetic energy and photoelectron spectroscopy of the XeI anion Thomas Lenzer, Michael and the corresponding neutral X1/2, I3/2, and II1/2 electronic states have been studied by means of zero electron

  18. Overview of Hazard Assessment and Emergency Planning Software of Use to RN First Responders

    SciTech Connect (OSTI)

    Waller, E; Millage, K; Blakely, W F; Ross, J A; Mercier, J R; Sandgren, D J; Levine, I H; Dickerson, W E; Nemhauser, J B; Nasstrom, J S; Sugiyama, G; Homann, S; Buddemeier, B R; Curling, C A; Disraelly, D S

    2008-08-26T23:59:59.000Z

    There are numerous software tools available for field deployment, reach-back, training and planning use in the event of a radiological or nuclear (RN) terrorist event. Specialized software tools used by CBRNe responders can increase information available and the speed and accuracy of the response, thereby ensuring that radiation doses to responders, receivers, and the general public are kept as low as reasonably achievable. Software designed to provide health care providers with assistance in selecting appropriate countermeasures or therapeutic interventions in a timely fashion can improve the potential for positive patient outcome. This paper reviews various software applications of relevance to radiological and nuclear (RN) events that are currently in use by first responders, emergency planners, medical receivers, and criminal investigators.

  19. {sup 222}Rn Measurements at Federal University of Technology (UTFPR, Curitiba, PR, Brazil)

    SciTech Connect (OSTI)

    Correa, Janine Nicolosi; Paschuk, Sergei A.; Fior, Loriane; Schelin, Hugo R.; Flores da Silva, Ruben D.; Poettker, Fabiana [Federal University of Technology-Paran, UTFPR, Av. Sete de Setembro, 3165, Curitiba, PR, 80230-901 (Brazil); Paula Melo, Vicente de [Institute of Radioprotection, IRD, CNEN, Av. Salvador Allende, Rio de Janeiro, RJ (Brazil)

    2008-08-07T23:59:59.000Z

    Numerous studies and reports indicate that the indoor radon inhalation by humans has to be considered as the main source of radiological hazard and probably the second most important cause of lung cancer after that of smoking. During the last decades, many countries have put considerable efforts into direct measurements and monitoring of {sup 222}Rn and its progeny exposure, as well as {sup 222}Rn concentration mapping. Present measurements were performed with an aim to study possible correlation between used construction materials and {sup 222}Rn indoor concentration levels. For this purpose, 50 Lexan track detectors were exposed in the air (indoor as well as outdoor) during two months (June and July) within the central region of Curitiba and Campo Largo (Parana St., Brazil). Since this period of the year is usually rather cold in the South of Brazil, exposition time was chosen to prevent possible saturation of alpha tracks. The second step of measurements was performed during the months of November, December and January, when 50 Lexan track detectors were exposed in the air (indoor and outdoor) within the same urban area. Achieved results are being compared with other experimental data.

  20. Initial proof-of-principle for near room temperature Xe and Kr separation from air with MOFs

    SciTech Connect (OSTI)

    Thallapally, Praveen K.; Strachan, Denis M.

    2012-06-06T23:59:59.000Z

    Materials were developed and tested in support of the U.S. Department of Energy, Office of Nuclear Energy, Fuel Cycle Technology Separations and Waste Forms Campaign. Specifically, materials are being developed for the removal of Xenon and krypton from gaseous products of nuclear fuel reprocessing unit operations. During FY 2012, Three Metal organic framework (MOF) structures were investigated in greater detail for the removal and storage of Xe and Kr from air at room temperature. Our breakthrough measurements on Nickel based MOF could capture and separate parts per million levels of Xe from Air (40 ppm Kr, 78% N2, 21% O2, 0.9% Ar, 0.03% CO2). Similarly, the selectivity can be changed from Xe > Kr to Xe < Kr simply by changing the temperature in another MOF. Also for the first time we estimated the cost of the metal organic frameworks in bulk.

  1. Search for Neutrinoless Double-Beta Decay in $^{136}$Xe with EXO-200

    E-Print Network [OSTI]

    M. Auger; D. J. Auty; P. S. Barbeau; E. Beauchamp; V. Belov; C. Benitez-Medina; M. Breidenbach; T. Brunner; A. Burenkov; B. Cleveland; S. Cook; T. Daniels; M. Danilov; C. G. Davis; S. Delaquis; R. deVoe; A. Dobi; M. J. Dolinski; A. Dolgolenko; M. Dunford; W. Fairbank Jr.; J. Farine; W. Feldmeier; P. Fierlinger; D. Franco; G. Giroux; R. Gornea; K. Graham; G. Gratta; C. Hall; K. Hall; C. Hargrove; S. Herrin; M. Hughes; A. Johnson; T. N. Johnson; A. Karelin; L. J. Kaufman; A. Kuchenkov; K. S. Kumar; D. S. Leonard; F. Leonard; D. Mackay; R. MacLellan; M. Marino; B. Mong; M. Montero Diez; A. R. Muller; R. Neilson; R. Nelson; A. Odian; I. Ostrovskiy; K. O'Sullivan; C. Ouellet; A. Piepke; A. Pocar; C. Y. Prescott; K. Pushkin; P. C. Rowson; J. J. Russell; A. Sabourov; D. Sinclair; S. Slutsky; V. Stekhanov; T. Tolba; D. Tosi; K. Twelker; P. Vogel; J. -L. Vuilleumier; A. Waite; T. Walton; M. Weber; U. Wichoski; J. Wodin; J. D. Wright; L. Yang; Y. -R. Yen; O. Ya. Zeldovich

    2012-07-20T23:59:59.000Z

    We report on a search for neutrinoless double-beta decay of $^{136}$Xe with EXO-200. No signal is observed for an exposure of 32.5 kg-yr, with a background of ~1.5 x 10^{-3} /(kg yr keV) in the $\\pm 1\\sigma$ region of interest. This sets a lower limit on the half-life of the neutrinoless double-beta decay $T_{1/2}^{0\

  2. Abundances of s-process elements in planetary nebulae: Br, Kr & Xe

    E-Print Network [OSTI]

    Y. Zhang; R. Williams; E. Pellegrini; K. Cavagnolo; J. A. Baldwin; B. Sharpee; M. Phillips; X. -W. Liu

    2006-05-06T23:59:59.000Z

    We identify emission lines of post-iron peak elements in very high signal-to-noise spectra of a sample of planetary nebulae. Analysis of lines from ions of Kr and Xe reveals enhancements in most of the PNe, in agreement with the theories of s-process in AGB star. Surprisingly, we did not detect lines from Br even though s-process calculations indicate that it should be produced with Kr at detectable levels.

  3. Detection of $^{133}$Xe from the Fukushima nuclear power plant in the upper troposphere above Germany

    E-Print Network [OSTI]

    Hardy Simgen; Frank Arnold; Heinfried Aufmhoff; Robert Baumann; Florian Kaether; Sebastian Lindemann; Ludwig Rauch; Hans Schlager; Clemens Schlosser; Ulrich Schumann

    2014-12-05T23:59:59.000Z

    After the accident in the Japanese Fukushima Dai-ichi nuclear power plant in March 2011 large amounts of radioactivity were released and distributed in the atmosphere. Among them were also radioactive noble gas isotopes which can be used as tracers to test global atmospheric circulation models. This work presents unique measurements of the radionuclide $^{133}$Xe from Fukushima in the upper troposphere above Germany. The measurements involve air sampling in a research jet aircraft followed by chromatographic xenon extraction and ultra-low background gas counting with miniaturized proportional counters. With this technique a detection limit of the order of 100 $^{133}$Xe atoms in litre-scale air samples (corresponding to about 100 mBq/m$^3$) is achievable. Our results provide proof that the $^{133}$Xe-rich ground level air layer from Fukushima was lifted up to the tropopause and distributed hemispherically. Moreover, comparisons with ground level air measurements indicate that the arrival of the radioactive plume at high altitude over Germany occurred several days before the ground level plume.

  4. Characteristic emission enhancement in the atmosphere with Rn trace using metal assisted LIBS

    SciTech Connect (OSTI)

    Hashemi, M. M. [Physics Department, Doctorate Technical Center of PNU, P.O. Box 19536-33511, Tehran (Iran, Islamic Republic of); Parvin, P., E-mail: parvin@aut.ac.ir; Moosakhani, A. [Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran (Iran, Islamic Republic of); Mortazavi, S. Z.; Reyhani, A. [Physics Department, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin (Iran, Islamic Republic of); Majdabadi, A. [Laser and Optics Research School, NSTRI, P.O. Box 11155-3486, Tehran (Iran, Islamic Republic of); Abachi, S. [Physics Department, University of California, Irvin, CA 92697 (United States)

    2014-06-15T23:59:59.000Z

    Several characteristic emission lines from the metal targets (Cu, Zn and Pb) were investigated in trace presence of radon gas in the atmospheric air, using Q-SW Nd:YAG laser induced plasma inside a control chamber. The emission lines of metal species are noticeably enhanced in (Rn+air), relative to those in the synthetic air alone. Similar spectra were also taken in various sub-atmospheric environments in order to determine the optimum pressure for enhancement. Solid-state nuclear track detectors were also employed to count the tracks due to alpha particles for the activity assessment.

  5. Salon International des Energies (SIDE), International Energy Exhibition & Conference Oil, Gas, Mining, RnE, October 2 -5, 2012 Palais des Congrs -Marrakech, Maroc.

    E-Print Network [OSTI]

    Olsen, Paul E.

    , Mining, RnE, October 2 - 5, 2012 Palais des Congrès - Marrakech, Maroc. Potential source rocks of Late

  6. Actinide production in /sup 136/Xe bombardments of /sup 249/Cf

    SciTech Connect (OSTI)

    Gregorich, K.E.

    1985-08-01T23:59:59.000Z

    The production cross sections for the actinide products from /sup 136/Xe bombardments of /sup 249/Cf at energies 1.02, 1.09, and 1.16 times the Coulomb barrier were determined. Fractions of the individual actinide elements were chemically separated from recoil catcher foils. The production cross sections of the actinide products were determined by measuring the radiations emitted from the nuclides within the chemical fractions. The chemical separation techniques used in this work are described in detail, and a description of the data analysis procedure is included. The actinide production cross section distributions from these /sup 136/Xe + /sup 249/Cf bombardments are compared with the production cross section distributions from other heavy ion bombardments of actinide targets, with emphasis on the comparison with the /sup 136/Xe + /sup 248/Cm reaction. A technique for modeling the final actinide cross section distributions has been developed and is presented. In this model, the initial (before deexcitation) cross section distribution with respect to the separation energy of a dinuclear complex and with respect to the Z of the target-like fragment is given by an empirical procedure. It is then assumed that the N/Z equilibration in the dinuclear complex occurs by the transfer of neutrons between the two participants in the dinuclear complex. The neutrons and the excitation energy are statistically distributed between the two fragments using a simple Fermi gas level density formalism. The resulting target-like fragment initial cross section distribution with respect to Z, N, and excitation energy is then allowed to deexcite by emission of neutrons in competition with fission. The result is a final cross section distribution with respect to Z and N for the actinide products. 68 refs., 33 figs., 6 tabs.

  7. Ion acceleration in Ar-Xe and Ar-He plasmas. I. Electron energy distribution functions and ion composition

    SciTech Connect (OSTI)

    Biloiu, Ioana A.; Scime, Earl E. [Department of Physics, West Virginia University, Morganton, West Virginia 26506 (United States)

    2010-11-15T23:59:59.000Z

    Electron energy distribution functions (eedf), ion production, and ion composition are studied in Ar-Xe and Ar-He expanding helicon plasmas. It was found that under the conditions of constant total flow rate, Xe, in addition to Ar, changes the eedf from Maxwellian-like to Druyvesteyn-like with a shortening of the high energy tail at {approx}15 eV. The electron temperature exponentially decreases from {approx}7 eV in pure Ar plasma to {approx}4 eV in pure Xe plasma. Xenon ions dominate the ion population for Xe filling fractions greater than 10%. The plasma density increases by {approx}15% with increasing Xe fraction. For an Ar-He plasma, increasing the helium fraction increases the electron temperature from {approx}7 eV in pure Ar plasma to {approx}14 eV for a He filling fraction of 80%. The plasma density drops by more than three orders of magnitude from 1.14x10{sup 11} cm{sup -3} to 6.5x10{sup 7} cm{sup -3}. However, the inferred ion densities indicate that even at a helium fraction of 80%, argon ions significantly outnumber helium ions.

  8. Model for projectile fragmentation: case study for Ni on Ta, Be and Xe on Al

    E-Print Network [OSTI]

    S. Mallik; G. Chaudhuri; S. Das Gupta

    2010-12-30T23:59:59.000Z

    For projectile fragmentation we work out details of a model whose origin can be traced back to the Bevalac era. The model positions itself between the phenomenological EPAX parametrization and microscopic transport models like "Heavy Ion Phase Space Exploration Model" (HIPSE) and antisymmetrised molecular dynamics(AMD). We apply the model to some recent data of projectile fragmentation of Ni on Ta and Be at beam energy 140 MeV/nucleon and some older data of Xe on Al at beam energy 790 MeV/nucleon. Reasonable values of cross-sections for various composites populated in the reactions are obtained.

  9. Probing the Geometry and Interconnectivity of Pores in Organic Aerogels Using Hyperpolarized 129Xe NMR Spectroscopy

    SciTech Connect (OSTI)

    Moudrakovski, Igor L.; Wang, Li Q.; Baumann, T.; Satcher, J. H.; Exarhos, Gregory J.; Ratcliffe, C. I.; Ripmeester, J. A.

    2004-04-28T23:59:59.000Z

    Aerogels represent a class of novel open-pore materials with high surface area and nanometer pore sizes. They exhibit extremely low mass densities, low thermal conductivity, good acoustic insulation, and low dielectric constants. These materials have potential applications in catalysis, advanced separation techniques, energy storage, environmental remediation, and as insulating materials. Organic aerogels are stiffer and stronger than silica aerogels and are better insulators with higher thermal resistance. Resorcinol-Formaldehyde (RF) aerogels are typically prepared through the base-catalyzed sol-gel polymerization of resorcinol with formaldehyde in aqueous solution to produce gels, which are then dried in supercritical CO2.1,2 The [resorcinol]/ [catalyst] (R/C) ratio of the starting sol-gel solution has been determined to be the dominant factor that affects the properties of RF aerogels. Since the unique microstructures of aerogels are responsible for their unusual properties, characterizing the detailed porous structures and correlating them with the processing parameters are vital to establish rational design principles for novel organic aerogels with tailored properties. In this communication we report the first use of hyperpolarized (HP) 129Xe NMR to probe the geometry and interconnectivity of pores in RF aerogels and to correlate these with synthetic conditions. Our work demonstrates that HP 129Xe NMR is so far the only method for accurately measuring the free volume-to-surface-area (Vg/S) ratios for soft mesoporous materials without using any geometric models.

  10. NUMBER OF CLINICAL HOURS IN THE NURSING PROGRAMS AND NATIONAL COUNCIL LICENSURE EXAMINATION FOR REGISTERED NURSES (NCLEX-RN) PASSING RATE

    E-Print Network [OSTI]

    Longabach, Tanya

    2012-08-31T23:59:59.000Z

    NUMBER OF CLINICAL HOURS IN THE NURSING PROGRAMS AND NATIONAL COUNCIL LICENSURE EXAMINATION FOR REGISTERED NURSES (NCLEX-RN) PASSING RATE By Tanya Longabach Submitted to the Department of Psychology and Research in Education... of the following thesis: NUMBER OF CLINICAL HOURS IN THE NURSING PROGRAMS AND NATIONAL COUNCIL LICENSURE EXAMINATION FOR REGISTERED NURSES (NCLEX-RN) PASSING RATE ________________________________ Vicki Peyton, Ph. D. Chairperson...

  11. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N 053/2012

    E-Print Network [OSTI]

    Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204 do Brasil Geral: o Processador: PLX 7800, Dual core CPU at 600Mhz with 256MB RAM. o Sistema;Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204 9100

  12. Removal of long-lived $^{222}$Rn daughters by electropolishing thin layers of stainless steel

    E-Print Network [OSTI]

    R. W. Schnee; M. A. Bowles; R. Bunker; K. McCabe; J. White; P. Cushman; M. Pepin; V. E. Guiseppe

    2014-04-23T23:59:59.000Z

    Long-lived alpha and beta emitters in the $^{222}$Rn decay chain on detector surfaces may be the limiting background in many experiments attempting to detect dark matter or neutrinoless double-beta decay. Removal of tens of microns of material via electropolishing has been shown to be effective at removing radon daughters implanted into material surfaces. Some applications, however, require the removal of uniform and significantly smaller thicknesses. Here, we demonstrate that electropolishing steel plates reduces the contamination efficiently, by a factor > 100. Examination of electropolished wires with a scanning electron microscope confirms that the thickness removed is reproducible and reasonably uniform. Together, these tests demonstrate the effectiveness of removal of radon daughters for a proposed low-radiation, multi-wire proportional chamber (the BetaCage), without compromising the screener's energy resolution. More generally, electropolishing thin layers of stainless steel may effectively remove radon daughters without compromising precision-machined parts.

  13. Removal of long-lived {sup 222}Rn daughters by electropolishing thin layers of stainless steel

    SciTech Connect (OSTI)

    Schnee, R. W.; Bowles, M. A.; Bunker, R.; McCabe, K.; White, J. [Department of Physics, Syracuse University, Syracuse, NY 13244 (United States)] [Department of Physics, Syracuse University, Syracuse, NY 13244 (United States); Cushman, P.; Pepin, M. [School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)] [School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States); Guiseppe, V. E. [University of South Dakota, Vermillion, South Dakota 57069 (United States)] [University of South Dakota, Vermillion, South Dakota 57069 (United States)

    2013-08-08T23:59:59.000Z

    Long-lived alpha and beta emitters in the {sup 222}Rn decay chain on detector surfaces may be the limiting background in many experiments attempting to detect dark matter or neutrinoless double beta decay. Removal of tens of microns of material via electropolishing has been shown to be effective at removing radon daughters implanted into material surfaces. Some applications, however, require the removal of uniform and significantly smaller thicknesses. Here, we demonstrate that electropolishing < 1 ?m from stainless-steel plates reduces the contamination efficiently, by a factor > 100. Examination of electropolished wires with a scanning electron microscope confirms that the thickness removed is reproducible and reasonably uniform. Together, these tests demonstrate the effectiveness of removal of radon daughters for a proposed low-radiation, multi-wire proportional chamber (the BetaCage), without compromising the screener’s energy resolution. More generally, electropolishing thin layers of stainless steel may effectively remove radon daughters without compromising precision-machined parts.

  14. Thermal Interpretation of Schwinger Effect in Near-Extremal RN Black Hole

    E-Print Network [OSTI]

    Sang Pyo Kim; Hyun Kyu Lee; Yongsung Yoon

    2015-03-01T23:59:59.000Z

    We propose a thermal interpretation of the Schwinger effect for charged scalars and spinors in an extremal and near-extremal Reissner-Nordstr\\"{o}m (RN) black hole. The emission of charges has the distribution with an effective temperature determined by the Davies-Unruh temperature for accelerating charges by the electric field and the scalar curvature of AdS_2 from the near-horizon geometry AdS_2 X S^2. We find a charge bound for the extremal micro black hole to remain stable against the Schwinger emission in analogy with the Breitenlohlner-Freedman bound for the AdS space. In the in-out formalism we find the one-loop QED effective action consistent with the vacuum persistence and interpret the vacuum persistence as the leading Schwinger effect and the effect of a charged vacuum of the Coulomb field.

  15. ON THE BEST RANK-1 AND RANK-(R1, R2, . . . , RN ) APPROXIMATION OF HIGHER-ORDER TENSORS

    E-Print Network [OSTI]

    ON THE BEST RANK-1 AND RANK-(R1, R2, . . . , RN ) APPROXIMATION OF HIGHER-ORDER TENSORS LIEVEN DE generalization of the best rank-R approximation problem for matrices, namely, the approximation of a given higher-order tensor, in an optimal least- squares sense, by a tensor that has prespecified column rank value, row rank

  16. Photoinduced Desorption of Xe from Porous Si following Ultraviolet Irradiation: Evidence for a Selective and Highly Effective Optical Activity

    E-Print Network [OSTI]

    Asscher, Micha

    , photovoltaics, and photocatalysis [1,2]. Photodissociation of N2O on Si (100) has been studied [3] as a mild) of Xe from porous silicon under UV irradiation. It was found that internal morphology and size of the pores and the excita- tion wavelength strongly affect the overall photoresponse of this system. Two

  17. First-principles study of the stability and migration of Kr, I and Xe in ZrO2

    SciTech Connect (OSTI)

    Xiao, Haiyan [University of Tennessee, Knoxville (UTK); Weber, William J [ORNL; Zhang, Yanwen [ORNL

    2014-01-01T23:59:59.000Z

    The stability and migration of Kr, I and Xe in bulk ZrO2 and on the ZrO2 (1 1 1) surface have been studied by standard density functional theory (DFT) and the DFT-D2 method that corrects for the van der Waals interaction. Both methods show that Kr and Xe prefer to incorporate in the bulk phase rather than adsorb on the surface, and Xe is very mobile in the bulk state. For Kr and Xe adsorption on the surface, van der Waals interaction dominates, causing the weak interaction between the adsorbate and substrate. Iodine is found to have comparable stability in both phases and forms I O bonds with strong covalency. It exhibits higher mobility on the surface than in the bulk ZrO2, and diffusion from bulk-like state to surface state is an exothermic process. The fission product behavior in ZrO2 is shown to be a complicated synergetic effect of fission product atomic size, electron negativity, occupation site and phase structure of the host.

  18. Adsorption of H2O, CO2 and Xe on Soft Surfaces Ori Stein and Micha Asscher*

    E-Print Network [OSTI]

    Asscher, Micha

    Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew UniVersity of Jerusalem, Israel studies from multilayer coverage grating of Xe on ODT-SAM have demonstrated that sublimation of the chemistry of these small molecules with biologically relevant surfaces such as membranes. In addition

  19. Microscopic description of spherical to {gamma}-soft shape transitions in Ba and Xe nuclei

    SciTech Connect (OSTI)

    Li, Z. P. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); Physics Department, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia); Niksic, T.; Vretenar, D. [Physics Department, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia); Meng, J. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191 (China)

    2010-03-15T23:59:59.000Z

    The rapid transition between spherical and {gamma}-soft shapes in Ba and Xe nuclei in the mass region A>=130 is analyzed using excitation spectra and collective wave functions obtained by diagonalization of a five-dimensional Hamiltonian for quadrupole vibrational and rotational degrees of freedom, with parameters determined by constrained self-consistent relativistic mean-field calculations for triaxial shapes. The results reproduce the characteristic evolution of excitation spectra and E2 transition probabilities, and in general, a good agreement with available data is obtained. The calculated spectra display fingerprints of a second-order shape phase transition that can approximately be described by analytic solutions corresponding to the E(5) dynamical symmetry.

  20. Crystal Structure of an HSA/FcRn Complex Reveals Recycling by Competitive Mimicry of HSA Ligands at a pH-Dependent Hydrophobic Interface

    E-Print Network [OSTI]

    Schmidt, Michael M.

    The long circulating half-life of serum albumin, the most abundant protein in mammalian plasma, derives from pH-dependent endosomal salvage from degradation, mediated by the neonatal Fc receptor (FcRn). Using yeast display, ...

  1. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N _321_/2012

    E-Print Network [OSTI]

    Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204 - BRASIL - FONE: (84) 3204 9100 - 3. JUSTIFICATIVA O Televisor será instalado na entrada do prédio Gama e

  2. Unidade NATAL: Rua Carlos Serrano, 2073 -CEP 59076-740 -Natal -RN -BRASIL -FONE: (84) 3204 9100 -PEDIDO DE COTAO ELETRNICA N 032/2012

    E-Print Network [OSTI]

    Unidade NATAL: Rua Carlos Serrano, 2073 - CEP 59076-740 - Natal - RN - BRASIL - FONE: (84) 3204 - BRASIL - FONE: (84) 3204 9100 - medidas internas: 1 m largura, 45 cm altura e 45 cm profundidade, com

  3. Precise measurement of the 222Rn half-life: a probe to monitor the stability of radioactivity

    E-Print Network [OSTI]

    E. Bellotti; C. Broggini; G. Di Carlo; M. Laubenstein; R. Menegazzo

    2015-01-30T23:59:59.000Z

    We give the results of a study on the 222Rn decay we performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several times per year the half-life of a short lifetime (days) source instead of measuring over a long period the activity of a long lifetime (tens or hundreds of years) source. In particular, we give the reason of the large periodical fluctuations in the count rate of the gamma rays due to radon inside a closed canister which has been described in literature and which has been attributed to a possible influence of a component in the solar irradiation affecting the nuclear decay rates. We then provide the result of four half-life measurements we performed underground at LNGS in the period from May 2014 to January 2015 with radon diffused into olive oil. Briefly, we did not measure any change of the 222Rn half-life with a 8*10^-5 precision. Finally, we provide the most precise value for the 222Rn half-life: 3.82146(16){stat}(4){syst} days.

  4. Measurement of the Double-Beta Decay Half-life of {sup 136}Xe in KamLAND-Zen

    SciTech Connect (OSTI)

    KamLAND-Zen Collaboration; Gando, A.; Gando, Y.; Hanakago, H.; Ikeda, H.; Inoue, K.; Kato, R.; Koga, M.; Matsuda, S.; Mitsui, T.; Nakada, T.; Nakamura, K.; Obata, A.; Oki, A.; Ono, Y.; Shimizu, I.; Shirai, J.; Suzuki, A.; Takemoto, Y.; Tamae, K.; Ueshima, K.; Watanabe, H.; Xu, B. D.; Yamada, S.; Yoshida, H.; Kozlov, A.; Yoshida, S.; Banks, T. I.; Detwiler, J. A.; Freedman, S. J.; Fujikawa, B. K.; Han, K.; O'Donnell, T.; Berger, B. E.; Efremenko, Y.; Karwowski, H. J.; Markoff, D. M.; Tornow, W.; Enomoto, S.; Decowski, M. P.

    2012-01-23T23:59:59.000Z

    We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg of {sup 136}Xe. The measured two-neutrino double-beta decay half-life of {sup 136}Xe is T{sup 2{nu}}{sub 1/2} = 2:38 {+-}#6; 0:02(stat)#6;{+-}0.14(syst)#2;x10{sup 21} yr, consistent with a recent measurement by EXO-200. We also obtain a lower limit for the neutrinoless double-beta decay half-life, T{sup 0{nu}}{sub 1/2} > 5.7 x#2; 10{sup 24} yr at 90% C.L.

  5. Status of double beta decay experiments using isotopes other than Xe-136

    E-Print Network [OSTI]

    Luciano Pandola

    2014-03-13T23:59:59.000Z

    Neutrinoless double beta decay is a lepton-number violating process predicted by many extensions of the standard model. It is actively searched for in several candidate isotopes within many experimental projects. The status of the experimental initiatives which are looking for the neutrinoless double beta decay in isotopes other than Xe-136 is reviewed, with special emphasis given to the projects that passed the R&D phase. The results recently released by the experiment GERDA are also summarized and discussed. The GERDA data give no positive indication of neutrinoless double beta decay of Ge-76 and disfavor in a model-independent way the long-standing observation claim on the same isotope. The lower limit reported by GERDA for the half-life of neutrinoless double beta decay of Ge-76 is T1/2 > 2.1e25 yr (90% C.L.), or T1/2 > 3.0e25 yr, when combined with the results of other Ge-76 predecessor experiments.

  6. Status of double beta decay experiments using isotopes other than Xe-136

    E-Print Network [OSTI]

    Pandola, Luciano

    2014-01-01T23:59:59.000Z

    Neutrinoless double beta decay is a lepton-number violating process predicted by many extensions of the standard model. It is actively searched for in several candidate isotopes within many experimental projects. The status of the experimental initiatives which are looking for the neutrinoless double beta decay in isotopes other than Xe-136 is reviewed, with special emphasis given to the projects that passed the R&D phase. The results recently released by the experiment GERDA are also summarized and discussed. The GERDA data give no positive indication of neutrinoless double beta decay of Ge-76 and disfavor in a model-independent way the long-standing observation claim on the same isotope. The lower limit reported by GERDA for the half-life of neutrinoless double beta decay of Ge-76 is T1/2 > 2.1e25 yr (90% C.L.), or T1/2 > 3.0e25 yr, when combined with the results of other Ge-76 predecessor experiments.

  7. Kr II and Xe II axial velocity distribution functions in a cross-field ion source

    SciTech Connect (OSTI)

    Lejeune, A.; Bourgeois, G.; Mazouffre, S. [ICARE, CNRS, 1C Avenue de la Recherche Scientifique, 45071 Orlans Cedex 2 (France)

    2012-07-15T23:59:59.000Z

    Laser induced fluorescence measurements were carried out in a cross-field ion source to examine the behaviour of the axial ion velocity distribution functions (VDFs) in the expanding plasma. In the present paper, we focus on the axial VDFs of Kr II and Xe II ions. We examine the contourplots in a 1D-phase space (x,v{sub x}) representation in front of the exhaust channel and along the centerline of the ion source. The main ion beam, whose momentum corresponds to the ions that are accelerated through the whole potential drop, is observed. A secondary structure reveals the ions coming from the opposite side of the channel. We show that the formation of the neutralized ion flow is governed by the annular geometry. The assumption of a collisionless shock or a double layer due to supersonic beam interaction is not necessary. A non-negligible fraction of slow ions originates in local ionization or charge-exchange collision events between ions of the expanding plasma and atoms of the background residual gas. Slow ions that are produced near the centerline in the vicinity of the exit plane are accelerated toward the source body with a negative velocity leading to a high sputtering of front face. On the contrary, the ions that are produced in the vicinity of the channel exit plane are partially accelerated by the extended electric field.

  8. Magnetic moments of Coulomb excited $2^{+}_{1}$ states for radioactive beams of $^{132,134,136}$Te and $^{138}$Xe isotopes at REX-ISOLDE Status Report on the Experiment IS415 at CERN

    E-Print Network [OSTI]

    CERN. Geneva. ISOLDE and Neutron Time-of-Flight Experiments Committee; Speidel, K H; Fraile-Prieto, L M; Balabanski, D L; Behrens, T; Georgiev, G; Gerber, J P; Gernhäuser, R; Kröll, T; Krücken, R; Leske, J; Lo Bianco, G; Lutter, R; Maier-Komor, P; Modamio, V; Schielke, S; Walker, J

    2006-01-01T23:59:59.000Z

    Magnetic moments of Coulomb excited $2^{+}_{1}$ states for radioactive beams of $^{132,134,136}$Te and $^{138}$Xe isotopes at REX-ISOLDE

  9. Calculo Numerico -Exame -10/07/07 Considere a func~ao f(x) = xe-x

    E-Print Network [OSTI]

    Sussner, Peter

    C´alculo Num´erico - Exame - 10/07/07 1 Considere a fun¸c~ao f(x) = xe-x - e-3 . (a) Esbo¸ce o gr´afico de f. [0.5 pts] (b) Aplique o m´etodo de Newton-Raphson (de prefer^encia em forma tabelar) para que significa o resultado de (a) para a converg^encia dos m´etodos de Gauss-Jacobi e de Gauss

  10. Precise measurement of the 222Rn half-life: a probe to monitor the stability of radioactivity

    E-Print Network [OSTI]

    Bellotti, E; Di Carlo, G; Laubenstein, M; Menegazzo, R

    2015-01-01T23:59:59.000Z

    We give the results of a study on the 222Rn decay we performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several times per year the half-life of a short lifetime (days) source instead of measuring over a long period the activity of a long lifetime (tens or hundreds of years) source. In particular, we give the reason of the large periodical fluctuations in the count rate of the gamma rays due to radon inside a closed canister which has been described in literature and which has been attributed to a possible influence of a component in the solar irradiation affecting the nuclear decay rates. We then provide the result of four half-life measurements we performed underground at LNGS in the period from May 2014 to January 2015 with radon diffused into olive oil. Briefly, we did not measure any change of the 222Rn half-life with a 8*10^-5 precision. Finally, we provide the most precise value for the ...

  11. Comparing the Performance of Blue Gene/Q with Leading Cray XE6 and InfiniBand Systems

    SciTech Connect (OSTI)

    Kerbyson, Darren J.; Barker, Kevin J.; Vishnu, Abhinav; Hoisie, Adolfy

    2013-01-21T23:59:59.000Z

    Abstract—Three types of systems dominate the current High Performance Computing landscape: the Cray XE6, the IBM Blue Gene, and commodity clusters using InfiniBand. These systems have quite different characteristics making the choice for a particular deployment difficult. The XE6 uses Cray’s proprietary Gemini 3-D torus interconnect with two nodes at each network endpoint. The latest IBM Blue Gene/Q uses a single socket integrating processor and communication in a 5-D torus network. InfiniBand provides the flexibility of using nodes from many vendors connected in many possible topologies. The performance characteristics of each vary vastly along with their utilization model. In this work we compare the performance of these three systems using a combination of micro-benchmarks and a set of production applications. In particular we discuss the causes of variability in performance across the systems and also quantify where performance is lost using a combination of measurements and models. Our results show that significant performance can be lost in normal production operation of the Cray XT6 and InfiniBand Clusters in comparison to Blue Gene/Q.

  12. Pattern recognition techniques to reduce backgrounds in the search for the {sup 136}Xe double beta decay with gaseous TPCs

    SciTech Connect (OSTI)

    Iguaz, F. J.; Cebrián, S.; Dafni, T.; Gómez, H.; Herrera, D. C.; Irastorza, I. G.; Luzon, G.; Segui, L.; Tomas, A. [Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza (Spain)] [Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza (Spain)

    2013-08-08T23:59:59.000Z

    The observation of the neutrinoless double beta decay may provide essential information on the nature of neutrinos. Among the current experimental approaches, a high pressure gaseous TPC is an attractive option for the search of double beta decay due to its good energy resolution and the detailed topological information of each event. We present in this talk a detailed study of the ionization topology of the {sup 136}Xe double beta decay events in a High Pressure Xenon TPC, as well as that of the typical competing backgrounds. We define some observables based on graph theory concepts to develop automated discrimination algorithms. Our criteria are able to reduce the background level by about three orders of magnitude in the region of interest of the {sup 136}Xe Q{sub ??} for a signal acceptance of 40%. This result provides a quantitative assessment of the benefit of topological information offered by gaseous TPCs for double beta decay search, and proves that it is a promising feature in view of future experiments in the field. Possible ideas for further improvement in the discrimination algorithms and the dependency of these results with the gas diffusion and readout granularity will be also discussed.

  13. Measurement of the complete nuclide production and kinetic energies of the system 136Xe + hydrogen at 1 GeV per nucleon

    E-Print Network [OSTI]

    P. Napolitani; K. -H. Schmidt; L. Tassan-Got; P. Armbruster; T. Enqvist; A. Heinz; V. Henzl; D. Henzlova; A. Kelic; R. Pleskac; M. V. Ricciardi; C. Schmitt; O. Yordanov; L. Audouin; M. Bernas; A. Lafriaskh; F. Rejmund; C. Stephan; J. Benlliure; E. Casarejos; M. Fernandez Ordonez; J. Pereira; A. Boudard; B. Fernandez; S. Leray; C. Villagrasa; C. Volant

    2007-06-05T23:59:59.000Z

    We present an extensive overview of production cross sections and kinetic energies for the complete set of nuclides formed in the spallation of 136Xe by protons at the incident energy of 1 GeV per nucleon. The measurement was performed in inverse kinematics at the FRagment Separator (GSI, Darmstadt). Slightly below the Businaro-Gallone point, 136Xe is the stable nuclide with the largest neutron excess. The kinematic data and cross sections collected in this work for the full nuclide production are a general benchmark for modelling the spallation process in a neutron-rich nuclear system, where fission is characterised by predominantly mass-asymmetric splits.

  14. Locus of Control & Motivation Strategies for Learning Questionnaire: Predictors of Student Success on the ATI Comprehensive Predictor Exam & NCLEX-RN Examination

    E-Print Network [OSTI]

    Carpenter, Jane H.

    2011-01-31T23:59:59.000Z

    ABSTRACT The two purposes of this study were to determine whether locus of control (LOC) was predictive of how a student would perform on the ATI Comprehensive Predictor Exam and the NCLEX-RN, and if the Motivated Strategies for Learning...

  15. Ion-radical synergy in HfO{sub 2} etching studied with a XeF{sub 2}/Ar{sup +} beam setup

    SciTech Connect (OSTI)

    Gevers, P. M.; Beijerinck, H. C. W.; Sanden, M. C. M. van de; Kessels, W. M. M. [Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)

    2008-04-15T23:59:59.000Z

    To gain more insight into fundamental aspects of the etching behavior of Hf-based high-k materials in plasma etch reactors, HfO{sub 2} films were etched in a multiple-beam setup consisting of a low energy Ar{sup +} ion beam and a XeF{sub 2} radical beam. The etch rate and etch products were monitored by real-time ellipsometry and mass spectrometry, respectively. Although etching of HfO{sub 2} in XeF{sub 2}/Ar{sup +} chemistry is mainly a physical effect, an unambiguous proof of the ion-radical synergistic effect for the etching of HfO{sub 2} is presented. The etch yield for 400 eV Ar{sup +} ions at a substrate temperature of 300 deg. C was 0.3 atoms/ion for Ar{sup +} sputtering and increased to 2 atoms/ion when XeF{sub 2} was also supplied. The etch yield proved to follow the common square root of ion energy dependence both for pure sputtering and radical enhanced etching, with a threshold energy at room temperature of 69{+-}17 eV for Ar{sup +} ions and 54{+-}14 eV for Ar{sup +} ions with XeF{sub 2}.

  16. High-resolution total-cross-section measurements for electron scattering from Ar, Kr, and Xe employing a threshold-photoelectron source

    SciTech Connect (OSTI)

    Kurokawa, M.; Kitajima, M.; Toyoshima, K.; Kishino, T.; Odagiri, T. [Department of Chemistry, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); Kato, H.; Hoshino, M.; Tanaka, H. [Department of Physics, Sophia University, Tokyo 102-8554 (Japan); Ito, K. [Photon Factory, Institute of Materials Structure Science, Tsukuba 305-0801 (Japan)

    2011-12-15T23:59:59.000Z

    Absolute total cross sections for electron scattering from Ar and Xe at electron energies ranging from 7 meV to 20 eV were obtained with the experimental technique employing the threshold-photoelectron source. The measured total cross sections are in good agreement with those obtained by other groups down to 100 meV, above which several experimental works have been reported. Scattering lengths for electron scattering from Ar, Kr, and Xe were determined from the present total cross sections and our recent results for Kr using the modified effective range theory. The values of the scattering length obtained in the present analysis differ from the values determined from the previous swarm experiments and beam experiments. The resonant structures in the total cross sections due to Feshbach resonances of Ar, Kr, and Xe with an improved energy resolution were also measured. Analyses of the resonant structure were carried out based on the spin-dependent resonant scattering theory in order to determine the values of the natural width of Feshbach resonances of Ar, Kr, and Xe precisely.

  17. Limit on Neutrinoless ?? Decay of Xe-136 from the First Phase of KamLAND-Zen and Comparison with the Positive Claim in Ge-76

    E-Print Network [OSTI]

    KamLAND-Zen Collaboration

    2013-02-19T23:59:59.000Z

    We present results from the first phase of the KamLAND-Zen double-beta decay experiment, corresponding to an exposure of 89.5 kg yr of Xe-136. We obtain a lower limit for the neutrinoless double-beta decay half-life of T_{1/2}^{0{\

  18. Vacuum ultra-violet emission of plasma discharges with high Xe partial pressure using a cathode protective layer with high secondary electron emission

    SciTech Connect (OSTI)

    Zhu, Di [School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin (China); Song, Le, E-mail: songle@tju.edu.cn [State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin (China); Zhang, Xiong [School of Electronic Science and Engineering, Southeast University, Nanjing (China); Kajiyama, Hiroshi [Graduate School of Advanced Science of Matter, Hiroshima University, Higashi-hiroshima, Hiroshima (Japan)

    2014-02-14T23:59:59.000Z

    In this work, the mechanism of the vacuum ultra-violet (VUV) emission of plasma discharges, with high Xe partial pressure and high ion-induced secondary electrons emission protective layer, is studied by measuring the VUV light emission directly and comparing it with two-dimensional simulations. From the panel measurement, we find that the high intensity of excimer VUV mainly contributes to the high luminous efficacy of SrCaO-plasma display panels (PDP) at a low sustain voltage. The unchanged Xe excitation efficiency indicates that the electron temperature is not decreased by the high secondary electrons emission protective layer, even though the sustain voltage is much lower. From the two-dimensional simulations, we can find that the ratio of excimer VUV to resonant VUV, which is determined by the collision rate in the discharge, is only significantly affected by the Xe partial pressure, while it is independent of the sustain voltage and the secondary-electrons-emission capability of protective layer. The unchanged average electron energy at the moment when the electric field becomes maximum confirms that the improvement of the VUV production efficiency mainly is attributed to the increase in electron heating efficiency of a PDP with high ion-induced secondary electrons emission protective layer. Combining the experimental and the simulation results, we conclude about the mechanism by which the VUV production is improved for the plasma display panel with a high Xe partial pressure and a cold cathode with high ion-induced secondary electrons emission.

  19. Electron Transport Coefficients and Scattering Cross Sections in CH4, HBr and in Mixtures of He and Xe

    SciTech Connect (OSTI)

    Sasic, Olivera M. [Institute of Physics, POB 68, 11080 Belgrade (Serbia and Montenegro); Faculty of Transport and Traffic Engineering, Belgrade (Serbia and Montenegro)

    2006-12-01T23:59:59.000Z

    We have applied a standard swarm procedure in order to obtain electron scattering cross sections and transport coefficients that provide a data base for plasma modeling. In case of CH4 the dissociative excitation cross sections from binary collision experiments were renormalized by fitting the measured excitation coefficients with our calculations. In case of HBr we have produced a complete set of cross sections based on available data from the literature, with some extrapolations. We have also tested the cross sections in He-Xe mixtures and the application of Blanc's law and common mean energy procedure in calculating drift velocities in by comparison with recent measurements. Finally, a well tested Monte Carlo code was used in wide range of both DC and RF electric and magnetic fields in order to calculate a number of transport coefficients in case of CH4 and HBr.

  20. Can xenon in water inhibit ice growth? Molecular dynamics of phase transitions in water$-$Xe system

    E-Print Network [OSTI]

    Vasilii I. Artyukhov; Alexander Yu. Pulver; Alex Peregudov; Igor Artyuhov

    2014-07-11T23:59:59.000Z

    Motivated by recent experiments showing the promise of noble gases as cryoprotectants, we perform molecular dynamics modeling of phase transitions in water with xenon under cooling. We study the structure and dynamics of xenon water solution as a function of temperature. Homogeneous nucleation of clathrate hydrate phase is observed and characterized. As the temperature is further reduced we observe hints of dissociation of clathrate due to stronger hydrophobic hydration, pointing towards a possible instability of clathrate at cryogenic temperatures and conversion to an amorphous phase comprised of "xenon + hydration shell" Xe$\\cdot$(H$_{2}$O)$_{21.5}$ clusters. Simulations of ice$-$xenon solution interface in equilibrium and during ice growth reveal the effects of xenon on the ice$-$liquid interface, where adsorbed xenon causes roughening of ice surface but does not preferentially form clathrate. These results provide evidence against the ice-blocker mechanism of xenon cryoprotection.

  1. A hybrid model for studying nuclear multifragmentation around Fermi energy domain: Case for central collision of Xe on Sn

    E-Print Network [OSTI]

    S. Mallik; G. Chaudhuri; S. Das Gupta

    2015-03-17T23:59:59.000Z

    Experimental data for central collisions of $^{129}$Xe on $^{119}$Sn at beam energies of (a) 32 MeV/nucleon, (b) 39 MeV/nucleon, (c) 45 MeV/nucleon and (d) 50 MeV/nucleon are compared with results calculated using a hybrid model. We use a transport model (BUU) to obtain the excitation energy per nucleon in the center of mass of the multifragmenting system. The canonical thermodynamic model is then used to determine the temperature which would lead to this excitation energy. With this temperature we use the canonical thermodynamic model to calculate various experimental data such as multiplicities of different composites, probability distribution of the largest cluster etc. Agreement with data establishes the validity of the model.

  2. A hybrid model for studying nuclear multifragmentation around Fermi energy domain: Case for central collision of Xe on Sn

    E-Print Network [OSTI]

    Mallik, S; Gupta, S Das

    2015-01-01T23:59:59.000Z

    Experimental data for central collisions of $^{129}$Xe on $^{119}$Sn at beam energies of (a) 32 MeV/nucleon, (b) 39 MeV/nucleon, (c) 45 MeV/nucleon and (d) 50 MeV/nucleon are compared with results calculated using a hybrid model. We use a transport model (BUU) to obtain the excitation energy per nucleon in the center of mass of the multifragmenting system. The canonical thermodynamic model is then used to determine the temperature which would lead to this excitation energy. With this temperature we use the canonical thermodynamic model to calculate various experimental data such as multiplicities of different composites, probability distribution of the largest cluster etc. Agreement with data establishes the validity of the model.

  3. EC MoDeRn Project: In-situ Demonstration of Innovative Monitoring Technologies for Geological Disposal - 12053

    SciTech Connect (OSTI)

    Breen, B.J. [NDA, Herdus House, Westlakes Science and Technology Park, Moor Row, Cumbria, CA24 3HU (United Kingdom); Garcia-Sineriz, J.L. [AITEMIN, c/Margarita Salas 14-Parque Leganes Tecnologico-Leganes, ES-28918, Madrid (Spain); Maurer, H. [ETH Zurich, ETH Honggerberg, CH-8093, Zurich (Switzerland); Mayer, S. [ANDRA, 1-7 rue Jean-Monnet, F-92298 Chatenay-Malabry cedex (France); Schroeder, T.J. [NRG, P.O. Box 25, NL-1755 ZG Petten (Netherlands); Verstricht, J. [EURIDICE EIG, c/o SCK.CEN, Boeretang 200, BE-2400 Mol (Belgium)

    2012-07-01T23:59:59.000Z

    Monitoring to provide information on the evolution of geological disposal presents several challenges. The 4-year, euros M 5, EC MoDeRn Project (http://www.modern-fp7.eu/), which commenced in 2009, addresses monitoring processes, state-of-the-art technology and innovative research and development of monitoring techniques. This paper discusses some of the key drivers for the development of innovative monitoring techniques and provides outlines of the demonstration programmes being conducted within MoDeRn. The aim is to develop these innovative monitoring techniques and to demonstrate them under realistic conditions present in underground laboratories. These demonstration projects, applying a range of different monitoring techniques, are being carried out at underground research facilities in different geological environments at HADES URL in Belgium (plastic clay), Bure in France (indurated clay) and at Grimsel Test Site (granite) in Switzerland. These are either built upon existing infrastructure (EC ESDRED Low pH shotcrete and TEM experiments at Grimsel; and PRACLAY experiment and underground galleries in HADES) or will be attached to infrastructure that is being developed and financed by resources outside of this project (mock-up disposal cell in Bure). At Grimsel Test Site, cross-hole and hole-to-tunnel seismic methods are being employed as a means to monitor induced changes in an artificially saturated bentonite wall confined behind a shotcrete plug. Recognising the limitations for travel-time tomography for monitoring a disposal cell, full waveform inversion techniques are being employed to enhance the capacity to monitor remote from the excavation. At the same Grimsel location, an investigation will be conducted of the potential for using a high frequency wireless (HFW) sensor network embedded within the barrier system; this will include the possibility of providing energy remotely to isolated sensors. At the HADES URL, the monitoring programme will utilise the PRACLAY gallery equipped to simulate a disposal gallery for heat-generating high-level waste evaluating fibre-optic based sensing techniques, including distributed sensing for thermal distribution and long-term reliability in harsh conditions. It also includes the potential to improve the treatment of signals from micro-seismic monitoring to enable enhanced understanding of the evolution around the gallery following its excavation due to ventilation, saturation and heating, and to image a water-bearing concretion layer. HADES URL will also be used to test wireless techniques to transmit monitoring data from the underground to the surface. The main focus of this contribution is to evaluate magneto-inductive data transmission; and to optimise energy usage. At the Bure underground facility in France, monitoring systems have been developed and will be embedded into the steel liner for the mock-up high-level waste disposal tunnel. The aim of this programme is to establish the capacity to conduct integrated monitoring activities inside the disposal cell, on the cell liner and in the near-field and to assess the capability of the monitoring to withstand construction and liner emplacement procedures. These projects, which are supported by focused development and testing of the monitoring systems, will allow the testing of both the effectiveness of these techniques applied to disposal situations and to understand the limits of these monitoring technologies. This approach should also enhance the confidence of key stakeholders in the ability to understand/confirm the changes occurring within a disposal cell. In addition, remote or 'non-intrusive' monitoring technologies are evaluated to provide a means of enhancing understanding of what is occurring in an isolated disposal cell. The projects also test solutions for embedded monitoring systems in challenging (risk of damage) situations. The outputs from this work will lead to improved understanding of these state-of-the-art techniques and allow focused development of those techniques beneficial to future monitoring progr

  4. RnD

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories »SubmitterJ. Norby (2007)Rising SeaProjectssources

  5. d-alpha Correlation functions and collective motion in Xe+Au collisions at E/A=50 MeV

    E-Print Network [OSTI]

    G. Verde; P. Danielewicz; W. G. Lynch; C. F. Chan; C. K. Gelbke; K. K. Lau; T. X. Liu; X. D. Liu; D. Seymour; R. Shomin; W. P. Tan; M. B. Tsang; A. Wagner; H. S. Xu; D. A. Brown; Y. Larochelle; R. T. de Souza; R. Yanez; R. J. Charity; L. G. Sobotka

    2007-08-01T23:59:59.000Z

    The interplay of the effects of geometry and collective motion on d-$\\alpha$ correlation functions is investigated for central Xe+Au collisions at E/A=50 MeV. The data cannot be explained without collective motion, which could be partly along the beam axis. A semi-quantitative description of the data can be obtained using a Monte-Carlo model, where thermal emission is superimposed on collective motion. Both the emission volume and the competition between the thermal and collective motion influence significantly the shape of the correlation function, motivating new strategies for extending intensity interferometry studies to massive particles.

  6. d-alpha correlation functions and collective motion in Xe+Au collisions at E/A=50 MeV

    SciTech Connect (OSTI)

    Verde, G; Danielewicz, P; Lynch, W; Chan, C; Gelbke, C; Kwong, L; Liu, T; Liu, X; Seymour, D; Tan, W; Tsang, M; Wagner, A; Xu, H; Brown, D; Davin, B; Larochelle, Y; de Souza, R; Charity, R; Sobotka, L

    2006-07-27T23:59:59.000Z

    The interplay of the effects of geometry and collective motion on d-{alpha} correlation functions is investigated for central Xe+Au collisions at E/A=50 MeV. The data cannot be explained with out collective motion, which could be partly along the beam axis. A semi-quantitative description of the data can be obtained using a Monte -Carlo model, where thermal emission is superimposed on collective motion. Both the emission volume and the competition between the thermal and collective motion influence significantly the shape of the correlation function, motivating new strategies for extending intensity interferometry studies to massive particles.

  7. Cray XE Documentation

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

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

  8. Quasi-elastic peak lineshapes in adsorbate diffusion on nearly flat surfaces at low coverages: the motional narrowing effect in Xe on Pt(111)

    E-Print Network [OSTI]

    R. Martinez-Casado; J. L. Vega; A. S. Sanz; S. Miret-Artes

    2007-04-12T23:59:59.000Z

    Quasi-elastic helium atom scattering measurements have provided clear evidence for a two-dimensional free gas of Xe atoms on Pt(111) at low coverages. Increasing the friction due to the surface, a gradual change of the shape of the quasi-elastic peak is predicted and analyzed for this system in terms of the so-called motional narrowing effect. The type of analysis presented here for the quasi-elastic peak should be prior to any deconvolution procedure carried out in order to better extract information from the process, e.g. diffusion coefficients and jump distributions. Moreover, this analysis also provides conditions for the free gas regime different than those reported earlier.

  9. Thermodynamic Investigations of Aqueous Ternary Complexes for Am/Cm Separation

    E-Print Network [OSTI]

    Leggett, Christina Joy

    2012-01-01T23:59:59.000Z

    lawrencium. The element promethium is notable for being theRn]5f 3 6d 1 7s 2 [Rn]5f 3 Promethium [Xe]4f 5 6s 2 [Xe]4f 4Cerium Praseodymium Neodymium Promethium Samarium Europium

  10. Low surface brightness galaxies rotation curves in the low energy limit of $R^n$ gravity no need for dark matter?

    E-Print Network [OSTI]

    Capozziello, S; Troisi, A

    2006-01-01T23:59:59.000Z

    We investigate the possibility that the observed flatness of the rotation curves of spiral galaxies is not an evidence for the existence of dark matter haloes, but rather a signal of the breakdown of General Relativity. To this aim, we consider power - law fourth order theories of gravity obtained by replacing the scalar curvature $R$ with $f(R) = f_0 R^n$ in the gravity Lagrangian. We show that, in the low energy limit, the gravitational potential generated by a pointlike source may be written as $\\Phi(r) \\propto r^{-1} \\left [ 1 + (r/r_c)^{\\beta} \\right ]$ with $\\beta$ a function of the slope $n$ of the gravity Lagrangian and $r_c$ a scalelength depending on the gravitating system properties. In order to apply the model to realistic systems, we compute the modified potential and the rotation curve for spherically symmetric and for thin disk mass distributions. It turns out that the potential is still asymptotically decreasing, but the corrected rotation curve, although not flat, is higher than the Newtonian...

  11. Low surface brightness galaxies rotation curves in the low energy limit of $R^n$ gravity : no need for dark matter?

    E-Print Network [OSTI]

    S. Capozziello; V. F. Cardone; A. - Troisi

    2006-12-13T23:59:59.000Z

    We investigate the possibility that the observed flatness of the rotation curves of spiral galaxies is not an evidence for the existence of dark matter haloes, but rather a signal of the breakdown of General Relativity. To this aim, we consider power - law fourth order theories of gravity obtained by replacing the scalar curvature $R$ with $f(R) = f_0 R^n$ in the gravity Lagrangian. We show that, in the low energy limit, the gravitational potential generated by a pointlike source may be written as $\\Phi(r) \\propto r^{-1} \\left [ 1 + (r/r_c)^{\\beta} \\right ]$ with $\\beta$ a function of the slope $n$ of the gravity Lagrangian and $r_c$ a scalelength depending on the gravitating system properties. In order to apply the model to realistic systems, we compute the modified potential and the rotation curve for spherically symmetric and for thin disk mass distributions. It turns out that the potential is still asymptotically decreasing, but the corrected rotation curve, although not flat, is higher than the Newtonian one thus offering the possibility to fit rotation curves without dark matter. To test the viability of the model, we consider a sample of 15 low surface brightness (LSB) galaxies with combined HI and H$\\alpha$ measurements of the rotation curve extending in the putative dark matter dominated region. We find a very good agreement between the theoretical rotation curve and the data using only stellar disk and interstellar gas.

  12. Large-scale calculations of the double-? decay of 76Ge, 130Te, 136Xe, and 150Nd in the deformed self-consistent Skyrme quasiparticle random-phase approximation

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

    Mustonen, M. T.; Engel, J.

    2013-06-01T23:59:59.000Z

    We use the axially deformed Skyrme quasiparticle random-phase approximation (QRPA) together with the SkM? energy-density functional, both as originally presented and with the time-odd part adjusted to reproduce the Gamow-Teller resonance energy in 208Pb, to calculate the matrix elements that govern the neutrinoless double-? decay of 76Ge, 130Te, 136Xe, and 150Nd. Our matrix elements in 130Te and 136Xe are significantly smaller than those of previous QRPA calculations, primarily because of the difference in pairing or deformation between the initial and the final nuclei. In 76Ge and 150Nd, our results are similar to those of less computationally intensive QRPA calculations. We suspect the 76Ge result, however, because we are forced to use a spherical ground state, even though our mean-field theory indicates a deformed minimum.

  13. van der Waals-corrected Density Functional Theory simulation of adsorption processes on transition-metal surfaces: Xe and graphene on Ni(111)

    E-Print Network [OSTI]

    Silvestrelli, Pier Luigi

    2015-01-01T23:59:59.000Z

    The DFT/vdW-WF2s1 method, recently developed to include the van der Waals interactions in the Density Functional Theory and describe adsorption processes on metal surfaces by taking metal-screening effects into account, is applied to the case of the interaction of Xe and graphene with a transition-metal surface, namely Ni(111). In general the adsorption of rare-gas atoms on metal surfaces is important because is prototypical for physisorption processes. Moreover, the interaction of graphene with Ni(111) is of particular interest for practical applications (efficient and large-scale production of high-quality graphene) and, from a theoretical point of view, is particularly challenging, since it can be described by a delicate interplay between chemisorption and physisorption processes. The first-principles simulation of transition metals require particular care also because they can be viewed as intermediate systems between simple metals and insulating crystals. Even in these cases the method performs well as d...

  14. High-resolution laser spectroscopy between 0.9 and 14.3 THz in a supersonic beam: Rydberg-Rydberg transitions of atomic Xe at intermediate n values

    SciTech Connect (OSTI)

    Haase, Christa; Agner, Josef A.; Merkt, Frederic [Laboratorium fuer Physikalische Chemie, ETH Zuerich, 8093 Zuerich (Switzerland)

    2013-06-28T23:59:59.000Z

    A laser-based, pulsed, narrow-band source of submillimeter-wave radiation has been developed that is continuously tunable from 0.1 THz to 14.3 THz. The source is based on difference-frequency mixing in the nonlinear crystal trans-4{sup Prime }-(dimethylamino)-N-methyl-4-stilbazolium tosylate. By varying the pulse length, the bandwidth of the submillimeter-wave radiation can be adjusted between 85 MHz and 2.8 MHz. This new radiation source has been integrated in a vacuum-ultraviolet-submillimeter-ware double-resonance spectrometer, with which low-frequency transitions of atoms and molecules in supersonic beams can be detected mass-selectively by photoionization and time-of-flight mass spectrometry. The properties of the radiation source and spectrometer are demonstrated in a study of 33f Leftwards-Arrow nd Rydberg-Rydberg transitions in Xe with n in the range 16-31. The frequency calibration of the submillimeter-wave radiation was performed with an accuracy of 2.8 MHz. The narrowest lines observed experimentally have a full-width at half-maximum of {approx}3 MHz, which is sufficient to fully resolve the hyperfine structure of the Rydberg-Rydberg transitions of {sup 129}Xe and {sup 131}Xe. A total of 72 transitions were measured in the range between 0.937 THz and 14.245 THz and their frequencies are compared with frequencies calculated by multichannel quantum defect theory.

  15. Assessing RN-to-RN peer review on clinical units.

    E-Print Network [OSTI]

    Pfeiffer, Judith A; Wickline, Mary A; Deetz, Jill; Berry, Elise S

    2011-01-01T23:59:59.000Z

    good patient safety, we used Culture of Safety data, a web-each unit to a true culture of safety. Nurses are expected

  16. XE6_Tips_022011.pptx

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1ofRadiative Heating in GlobalFor m ost u sers

  17. XE6_Tips_09302010.pptx

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1ofRadiative Heating in GlobalFor m ost u

  18. Intel® Inspector XE

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFunInfrared Land SurfaceVirus-InfectedIntelligent Coatings forIntel® Advisor

  19. Search for 2{nu}{beta}{beta} Decay of {sup 130}Te to the First Excited State of {sup 130}Xe with an Ultra-Low-Background Germanium Crystal Array

    SciTech Connect (OSTI)

    Mizouni, L. K. [Pacific Northwest National Laboratory, P.O. Box 999, Richland WA 99352 (United States); University of South Carolina, 712 Main St., Columbia, SC 29208 (United States); Aalseth, C. E.; Erikson, L. E.; Hossbach, T. W.; Keillor, M. E.; Orrell, J. L. [Pacific Northwest National Laboratory, P.O. Box 999, Richland WA 99352 (United States); Avignone, F. T. III [University of South Carolina, 712 Main St., Columbia, SC 29208 (United States)

    2011-12-13T23:59:59.000Z

    The goal of searching for zero-neutrino double-beta (0{nu}{beta}{beta}) decay is to probe an absolute neutrino mass scale suggested by the mass-splitting parameters observed by neutrino oscillation experiments. Furthermore, observation of 0{nu}{beta}{beta} decay is an explicit instance of Lepton-number non-conservation. A sensitive measurement of two-neutrino double-beta (2{nu}{beta}{beta}) decay can provide critical input to Quasiparticle Random Phase Approximation (QRPA) calculations of the nuclear matrix elements in models similar to those used to extract the absolute neutrino mass from (0{nu}{beta}{beta}) decay experiments. Tellurium-130, an even-even nucleus, can undergo 2{nu}{beta}{beta} decay to the first 0+ excited state of {sup 130}Xe producing three possible {gamma}-ray cascades as it transitions to the ground state. The Cascades detector is a high purity germanium (HPGe) crystal array consisting of two ultra-low-background copper cryostats each housing a hexagonal array of seven crystals. The project is currently being developed at Pacific Northwest National Laboratory in Richland, WA (USA), and aims to obtain very high {gamma}-ray detection efficiency while utilizing highly effective and low-background shielding. GEANT4 simulations of the detector are performed for a {sup 130}Te sample in order to determine the optimum size and geometry of the source for maximum detection efficiency and predict its sensitivity for measuring 2{nu}{beta}{beta} decay to the first 0+ excited state of {sup 130}Xe. These simulations are validated with calibration sources and presented.

  20. NREL: Energy Analysis - Jørn Aabakken

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

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  1. Hopper, NERSC's Cray XE6 System

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLC HistoryVeterans | Updates and Status

  2. Vector Fields Definition 13.1. A vector field on Rn is a function F : A Rn Rn that assignes to each point x in

    E-Print Network [OSTI]

    Pritsker, Igor

    a that a particle of unit mass experiences when released from the point x. A gravitational field is then a function. Example 13.4. Similarly, one can define the electric field E(x) at the point x R3 in terms of the accel- eration that a charged particle experiences when released from the point x. The electric field is also

  3. Radioxenon detections in the CTBT International Monitoring System likely related to the announced nuclear test in North Korea conducted on February 12, 2013

    SciTech Connect (OSTI)

    Ringbom, Anders; Axelssson, A.; Aldener, M.; Auer, M.; Bowyer, Ted W.; Fritioff, T.; Hoffman, Ian; Khrustalev, Kirill; Nikkinen, Mika; Popov, Vladimir Y.; Popov, Y.; Ungar, R. Kurt; Wotawa, G.

    2014-02-01T23:59:59.000Z

    Abstract: Observations of the radioxenon isotopes 133Xe and 131mXe collected at the IMS stations RN38 and RN58 on April 7-8, and April 12-13 2013, respectively, are unique with respect to the measurement history of these stations. Comparison of measured data with calculated isotopic ratios as well as analysis using atmospheric transport modeling indicate that it is likely that the xenon measured was created in the underground nuclear test conducted by North Korea on February 12, 2013, and released 7 weeks later. More than one release is required to explain all observations. The 131mXe source terms for each release were calculated to 7x1011 Bq, corresponding to about 1-10% of the total xenon inventory for a 10-kt explosion, depending on fractionation and release scenario. The observed ratios could not be used to obtain any information regarding the fissile material that was used in the test.

  4. Linearit`a delle isometrie di Rn Maurizio Cornalba

    E-Print Network [OSTI]

    Cornalba, Maurizio

    `a possiamo anche supporre che y stia tra x e z. Ne segue che x - z = x - y + y - z e quindi che f(x) - f

  5. Solar system constraints on R$^n$ gravity

    E-Print Network [OSTI]

    A. F. Zakharov; A. A. Nucita; F. De Paolis; G. Ingrosso

    2006-11-02T23:59:59.000Z

    Recently, gravitational microlensing has been investigated in the framework of the weak field limit of fourth order gravity theory. However, solar system data (i.e. planetary periods and light bending) can be used to put strong constraints on the parameters of this class of gravity theories. We find that these parameters must be very close to those corresponding to the Newtonian limit of the theory.

  6. UNITED STATES Pesticides Peril Ocean Life, Scientists Wa rn

    E-Print Network [OSTI]

    Studies Aid Pollution Control NOAA Supports Salt-Marsh Research in Georgia Satellites Meas ure Sea-Surface Tempera- ture in U,S.-Mexico Survey Chesapeake Bay Hard Crabs Will Be Scarce This Summer VIMS Studies and James H. Redman Disease in the Lives of Fish - The Role of Pollution Is Now Being Assessed, by Rich- ard

  7. R-N Team Scores in Brain Bowl

    E-Print Network [OSTI]

    Hanson, Stephen José

    , which appeared in the Sept. 2006 issue of The Academy of Management: Learning and Education, illustrates at the symposium on the Oyster Creek nuclear power plant held at Rutgers- Newark in December. Designed tends to increase. The lesson seems to be that creating a culture of integrity and responsibility is one

  8. atmospheric 222rn decay: Topics by E-print Network

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

    performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several...

  9. Coalition for Rainforest Nations (CfRN) | Open Energy Information

    Open Energy Info (EERE)

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

  10. Coalition for Rainforest Nations (CfRN) | Open Energy Information

    Open Energy Info (EERE)

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

  11. Radon (Rn-222) and thoron (Rn-220) emanation fractions from three separate formations of oil field pipe scale

    E-Print Network [OSTI]

    Fruchtnicht, Erich Harold

    2004-11-15T23:59:59.000Z

    ..........................................................................................................................9 Electret Ion Chambers.......................................................................................... 9 Secular Equilibrium in the Scale........................................................................ 13 Radon Progeny...................................................................................................................... 21 Radon Progeny Equilibration and Measurement ............................................... 23 LabSOCS Verification and Virtual Standard Creation ...................................... 24 Electret Calibration...

  12. ACTINIDE PRODUCTION IN 136Xe BOMBARDMENTS OF 249Cf

    E-Print Network [OSTI]

    Gregorich, K.E.

    2010-01-01T23:59:59.000Z

    onto the column in HHO. or HCl in a volume of lessin about 50ul of a 0.1M HHO_ solution. The walls of tha

  13. ar xe o2: Topics by E-print Network

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

    stellar decay rates of 128I and only marginally affected by the specific stellar neutron flux. For this reason it represents an important test for He-shell burning in AGB...

  14. Gas phase 129Xe NMR imaging and spectroscopy

    E-Print Network [OSTI]

    Kaiser, Lana G.

    2010-01-01T23:59:59.000Z

    5 l l Dynamic NMR microscopy of gas phase Poiseuille flowmetal vapors and noble gases can be used to efficientlypolarize the nuclei ofthe noble-gas atoms. As a result, the

  15. Configuration of Hopper, NERSC's Cray XE6 System

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

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

  16. New Features of the Hopper XE6 - Differences from Franklin

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn CyberNeutrons used to studyThe4 2.450 2.443New

  17. "Atm o sp h e ric a n d O c e a n ic P ro c e sse s, D y n a m ic s, a n d C lim a te C h a n g e (AE 1 0 9 ) C o n fe re n c e " in "S P IE 's T h ird In te rn a tio n a l Asia -P a c ific E n v iro n m e n ta l R e m o te S e n sin g S y m p o siu m 2 0

    E-Print Network [OSTI]

    Wang, Junhong

    "Atm o sp h e ric a n d O c e a n ic P ro c e sse s, D y n a m ic s, a n d C lim a te C h a n g e (AE 1 0 9 ) C o n fe re n c e " in "S P IE 's T h ird In te rn a tio n a l Asia -P a c ific E n v iro n m e n ta l R e m o te S e n sin g S y m p o siu m 2 0 0 2 : R e m o te S e n sin g o f th e Atm o

  18. Method for the simultaneous preparation of radon-211, xenon-125, xenon-123, astatine-211, iodine-125 and iodine-123

    DOE Patents [OSTI]

    Mirzadeh, S.; Lambrecht, R.M.

    1985-07-01T23:59:59.000Z

    The invention relates to a practical method for commercially producing radiopharmaceutical activities and, more particularly, relates to a method for the preparation of about equal amount of Radon-211 (/sup 211/Rn) and Xenon-125 (/sup 125/Xe) including a one-step chemical procedure following an irradiation procedure in which a selected target of Thorium (/sup 232/Th) or Uranium (/sup 238/U) is irradiated. The disclosed method is also effective for the preparation in a one-step chemical procedure of substantially equal amounts of high purity /sup 123/I and /sup 211/At. In one preferred arrangement of the invention almost equal quantities of /sup 211/Rn and /sup 125/Xe are prepared using a onestep chemical procedure in which a suitably irradiated fertile target material, such as thorium-232 or uranium-238, is treated to extract those radionuclides from it. In the same one-step chemical procedure about equal quantities of /sup 211/At and /sup 123/I are prepared and stored for subsequent use. In a modified arrangement of the method of the invention, it is practiced to separate and store about equal amounts of only /sup 211/Rn and /sup 125/Xe, while preventing the extraction or storage of the radionuclides /sup 211/At and /sup 123/I.

  19. Octatetraene-Xe van der Waals Clusters Bull. Korean Chem. Soc. 2002, Vol. 23, No. 2 195 Fluorescence Excitation Spectroscopy of Octatetraene-Xe van der Waals Clusters

    E-Print Network [OSTI]

    Kim, Sang Kyu

    a conjugated double bond structure, playing important roles in photobiological systems. Conversion of light conversion of light in biolog- ical systems. Some years ago, this group has reported the role of the rare gas for the molecular interactions among the collision pairs and the solvation dynamics.1,2 Since the rare gas atoms

  20. E-Print Network 3.0 - asymptotically schroedinger rn Sample Search...

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

    Skibsted Summary: of a dilation-analytic Schroedinger operator, based on the Mellin transform", J. Math. Anal. Appl. 117 (1986... ), 198-219. 2) "Resonances of Schroedinger...

  1. 1 USDA Forest Service Res. Note PSW-RN-414-WEB. 1993. xperienced hydrologists and geo-

    E-Print Network [OSTI]

    Standiford, Richard B.

    in gravel- bed streams commonly contain deposits of fine sediment (mostly sand and gravel) that overlie significant volumes of fine sediment can be deposited in pools. To date, we have found that V* can be accu-sediment volume. These volumes are computed for the residual por- tion of the pool that lies below the elevation

  2. Radionuclide site survey report, Ashland, Kansas (RN-74). Final technical report

    SciTech Connect (OSTI)

    Walker, F.; Lucas, J.; Owen, M.; McKethan, E.M.; MacCartney, J.

    1999-01-07T23:59:59.000Z

    The purpose of this report is to validate that the Ashland, Kansas site will fulfill treaty requirements as set forth by the Preparatory Commission for the Comprehensive Test Ban Treaty Organization. The team performing the site survey followed accepted scientific methods in collecting air and soil samples near the proposed site. The samples were analyzed by the McClellan Central Laboratory and the results forwarded to AFTAC/TM for review. The team included meteorological and technical staff. Possible sources of radionuclides were examined, as well as meteorological conditions that might affect the validity of recorded data at the site. All necessary background information required by the Commission was researched and is included in the report. The analysis of the samples identifies all radionuclide isotopes and their sources that might affect future samples at the site. There are no significant findings that would prevent this site from meeting treaty requirements.

  3. CECW-RN (5-8a) 7 APR 1989 MEMORANDUM FOR: SEE DISTRIBUTION

    E-Print Network [OSTI]

    US Army Corps of Engineers

    project. However, in the case of a deep draft harbor (i.e., a project with authorized depth in excess for Utility Relocation Costs on Navigation Projects -- Modification to Existing Local Cooperation Agreements-88, b. Water Resources Development Act of 1986, P.L. 99-662, c. Water Resources Development Act of 1988

  4. Commander Carlyon Wilfroy Bellairs (R.N.) Christie Lovat & Danielle J. Donnelly

    E-Print Network [OSTI]

    Barthelat, Francois

    . Bellairs entered politics as Liberal MP for Kings's Lynn in 1906. He was in his element served as a member on the London County Council until 1915, when the next parliamentary elections were

  5. Advising Letter for Summer and Fall 2011 Dear RN to BSN Student

    E-Print Network [OSTI]

    if you have any registration holds. To register, you must have your advising hold lifted. Site Directors, UIN and plans for Summer semester. I will lift the block upon receipt of the email. The advising hold. The televised class schedule will be posted on the School of Nursing web page (http://hs.odu.edu/nursing view

  6. E-Print Network 3.0 - apodi rn cultivados Sample Search Results

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

    cultivados Page: << < 1 2 3 4 5 > >> 1 IMEM RAMON MARGALEF. CICLO DE CONFERENCIAS SOBRE IMPACTO AMBIENTAL Y CONSERVACIN DEL TERRITORIO Y EL PAISAJE: INVESTIGACIN PARA ENFRENTAR...

  7. Carol A. Rice, Ph.D., R.N. Professor and Extension Health Specialist

    E-Print Network [OSTI]

    are wondering if there is something they should do to protect their families and homes from a disease few of us families do to protect themselves against anthrax? Some people think they should take the antibiotic, cipro be scrubbing their homes with a bleach or other disinfectant solutions to protect against anthrax, for example

  8. The Effect of Supplemental Podcasts on Test Scores of RN-BSN Research Course Students

    E-Print Network [OSTI]

    McDermott, Joanne

    For over 50 years the profession of nursing has voiced the belief that the level of the Baccalaureate Degree should be required for entry into the practice of professional nursing. Despite the increasing complexity of the ...

  9. E-Print Network 3.0 - alternative rn-222 flux Sample Search Results

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

    with alternating critical current density R. G. Mints Summary: Self-generated flux in Josephson junctions with alternating critical current density R. G. Mints... -generated...

  10. 1USDA Forest Service Research Note. PSW-RN-426. 2004. Wooster, John; Hilton, Sue.

    E-Print Network [OSTI]

    Standiford, Richard B.

    attributed to deflected flow. Early salmonid restoration efforts focused on removing LWD from streams restoration. As part of the salmonid restoration plan, streams were to be cleaned at the rate of at least 100 below a stream's high water mark. By 1986-87 the stream restoration paradigm began to shift towards

  11. CfRN-Developing a Low Carbon Growth Plan | Open Energy Information

    Open Energy Info (EERE)

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

  12. Thermal Conductivity Measurement of Xe-Implanted Uranium Dioxide Thick Films using Multilayer Laser Flash Analysis

    SciTech Connect (OSTI)

    Nelson, Andrew T. [Los Alamos National Laboratory

    2012-08-30T23:59:59.000Z

    The Fuel Cycle Research and Development program's Advanced Fuels campaign is currently pursuing use of ion beam assisted deposition to produce uranium dioxide thick films containing xenon in various morphologies. To date, this technique has provided materials of interest for validation of predictive fuel performance codes and to provide insight into the behavior of xenon and other fission gasses under extreme conditions. In addition to the structural data provided by such thick films, it may be possible to couple these materials with multilayer laser flash analysis in order to measure the impact of xenon on thermal transport in uranium dioxide. A number of substrate materials (single crystal silicon carbide, molybdenum, and quartz) containing uranium dioxide films ranging from one to eight microns in thickness were evaluated using multilayer laser flash analysis in order to provide recommendations on the most promising substrates and geometries for further investigation. In general, the uranium dioxide films grown to date using ion beam assisted deposition were all found too thin for accurate measurement. Of the substrates tested, molybdenum performed the best and looks to be the best candidate for further development. Results obtained within this study suggest that the technique does possess the necessary resolution for measurement of uranium dioxide thick films, provided the films are grown in excess of fifty microns. This requirement is congruent with the material needs when viewed from a fundamental standpoint, as this length scale of material is required to adequately sample grain boundaries and possible second phases present in ceramic nuclear fuel.

  13. Pore-structure determinations of silica aerogels by {sup 129}Xe NMR spectroscopy and imaging.

    SciTech Connect (OSTI)

    Gregory, D. M.; Gerald, R. E., II; Botto, R. E.; Chemistry

    1998-04-01T23:59:59.000Z

    Silica aerogels represent a new class of open-pore materials with pore dimensions on a scale of tens of nanometers, and are thus classified as mesoporous materials. In this work, we show that the combination of NMR spectroscopy and chemical-shift selective magnetic resonance imaging (MRI) can resolve some of the important aspects of the structure of silica aerogels. The use of xenon as a gaseous probe in combination with spatially resolved NMR techniques is demonstrated to be a powerful, new approach for characterizing the average pore structure and steady-state spatial distributions of xenon atoms in different physicochemical environments. Furthermore, dynamic NMR magnetization transfer experiments and pulsed-field gradient (PFG) measurements have been used to characterize exchange processes and diffusive motion of xenon in samples at equilibrium. In particular, this new NMR approach offers unique information and insights into the nanoscopic pore structure and microscopic morphology of aerogels and the dynamical behavior of occluded adsorbates. MRI provides spatially resolved information on the nature of the flaw regions found in these materials. Pseudo-first-order rate constants for magnetization transfer among the bulk and occluded xenon phases indicate xenon-exchange rate constants on the order of 1 s-1 for specimens having volumes of 0.03 cm3. PFG diffusion measurements show evidence of anisotropic diffusion for xenon occluded within aerogels, with nominal self-diffusivity coefficients on the order of D= 10-3cm2/s.

  14. New Tools for Chemically Directed Glycoproteomics and Xe-based MRI Contrast Agents

    E-Print Network [OSTI]

    Palaniappan, Krishnan K.

    2012-01-01T23:59:59.000Z

    Q Gradient ultrapure water purification system (Millipore).Q Gradient ultrapure water purification system (Millipore).Q Gradient ultrapure water purification system (Millipore).

  15. A Comprehensive Simulation Study of a Liquid-Xe Detector for Contraband Detection

    E-Print Network [OSTI]

    Israelashvili, I; Vartsky, D; Arazi, L; Bar, D; Caspi, E N; Breskin, A

    2015-01-01T23:59:59.000Z

    Recently, a new detector concept, for combined imaging and spectroscopy of fast-neutrons and gamma was presented. It encompasses a liquid-xenon (LXe) converter-scintillator coupled to a UV-sensitive gaseous Thick Gas Electron Multiplier (THGEM)-based imaging photomultiplier (GPM). In this work we present and discuss the results of a systematic computer-simulation study aiming at optimizing the type and performance of LXe converter. We have evaluated the detector spectral response, detection efficiency and spatial resolution for gamma-rays and neutrons in the energy range of 2-15 MeV for 50 mm thick converters consisting of plain LXe volume and LXe-filled capillaries, of Teflon, Polyethylene or hydrogen-containing Teflon (Tefzel). Neutron detection efficiencies for plain LXe, Teflon-capillaries and Tefzel-capillaries converters were about 20% over the entire energy range. In polyethylene capillaries converters the neutron detection efficiency was about 10% at 2 MeV and increased up to about 20% at 14 MeV. Dete...

  16. Presentations from Using the Cray XE6 Training at NERSC February 7-8, 2011

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

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

  17. SciTech Connect: Search for Neutrinoless Double-Beta Decay in $^{136}$Xe

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2) Cawith EXO-200 Search for Neutrinoless Double-Beta

  18. Laser action in para-quaterphenyl vapor pumped by XeCl* laser radiation

    SciTech Connect (OSTI)

    Danilova, V.I.; Degtyarenko, K.M.; Gruzinskii, V.V.; Kopylova, T.N.; Maier, G.V.; Tarasenko, V.F.

    1980-05-01T23:59:59.000Z

    A new approach is proposed to the search for active media involving a theoretical study of the spectral, luminescence, and lasing properties of organic molecules. Laser action was obtained in gas-phase para-quaterphenyl (lambda/sub l/=361.5 nm) with a low threshold pumping level (1.1 MW/cm/sup 2/). The lasing capacity of some substituted forms of para-quaterphenyl is predicted.

  19. Workshop on Cray XE6 User Experiences September 27-28

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1 TableContacts WorkshopTrading andWorkshop on

  20. Using the Cray XE6 Training at NERSC February 7-8, 2011

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

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

  1. Web Documents for Using the Cray XE6 Training at NERSC February 7-8, 2011

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

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

  2. First-principles study of the stability and migration of Kr, I and Xe in

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibilityField OfficeFirmFirsthexagonal 2H-MoS2. |the nobleZrO2.

  3. Franklin XT4 to Hopper XE6 Katie Antypas and Helen He NERSC User Services Group

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

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

  4. Agenda for Using the Cray XE6 Training at NERSC February 7-8, 2011

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

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

  5. Towards a precision measurement of the half life of neutrinoless double beta decay of 136Xe.

    E-Print Network [OSTI]

    Stanford University, Dept. of Physics

    2011-01-01T23:59:59.000Z

    ??Recent neutrino oscillation experiments provide proof that neutrinos are massive par- ticles, but the absolute neutrino mass scale remains unknown. Observation of neu- trinoless double… (more)

  6. The Dean's Report '09 UnIVERSIty oF SoUthERn CAlIFoRnIA

    E-Print Network [OSTI]

    Zhou, Chongwu

    , introduced four new programs in emerging areas: Green Technologies Electrical Power (Smart Grids) Health Minor in Business Ous Mellouli (2007) Olympic Gold medalist in 1500- meter swimming competition at 2008

  7. Patricia Flatley Brennan, PhD, RN, FAAN Lillian S. Moehlman-Bascom Professor of Nursing and Industrial Engineering

    E-Print Network [OSTI]

    Sheridan, Jennifer

    and Industrial Engineering UW­Madison School of Nursing Because the majority of health care takes place MSN in nursing from the University of Pennsylvania, and her MSIE and PhD in industrial engineering. With an MSN in nursing and a PhD in engineering, Brennan is uniquely qualified to address patient care

  8. MARY LOU (NOLL) SOLE, PhD, RN, CCNS, CNL, FAAN, FCCM University of Central Florida College of Nursing

    E-Print Network [OSTI]

    Wu, Shin-Tson

    of Infection Control. *Sole, M.L. & Bennet, M. (Under Review). Have airway management practices of nurses

  9. Phorochrriii\\rn. und Phofuhiologr. Vol. 29. pp. 439-444. Pergamon Press Ltd. 1979. Printed in Great Britain

    E-Print Network [OSTI]

    Govindjee

    of the spectroscopy of iodine. nitrogen dioxide, s-tetrazine and various van der Waals molecular complexes molecule like s-tetrazine is effectively "frozen" out giving one of the few highly resolved gas phase

  10. FOR TRADITIONAL MASTER'S, MASTER'S ENTRY, RN-MS, MS/MBA, ADDITIONAL SPECIALTY CERTIFICATE AND NURSE ANESTHESIA APPLICANTS

    E-Print Network [OSTI]

    Huang, Jianyu

    ANESTHESIA APPLICANTS: Please submit two essays pertaining to your goals by responding to the two questions

  11. Measurement of a magnetic-dipole transition probability in Xe32+ using an electron-beam ion trap

    E-Print Network [OSTI]

    Serpa, F. G.; Morgan, C. A.; Meyer, E. S.; Gillaspy, J. D.; Trabert, E.; Church, David A.; Takacs, E.

    1997-01-01T23:59:59.000Z

    D2 5D3 M1 transition of interest at 413.94 nm Measurement of a magnetic-dipol using an electron-bea F. G. Serpa,* C. A. Morgan, E Atomic Physics Division, National Institute of Standard E. Tr Experimentalphysik III, Ruhr-Universit D. A.... Sugar, J. Opt. Soc. Am. B 8, 3 ~1991!. @8# C.A. Morgan, F.G. Serpa, E. Taka?cs, E.S. Meyer, J.D. Gillaspy, J. Sugar, J.R. Roberts, C.M. Brown, and U. Feldman, Phys. Rev. Lett. 74, 1716 ~1995!. @9# F.G. Serpa, E.S. Meyer, C.A. Morgan, J.D. Gillaspy...

  12. Xe chemical shift measurements on a single crystal surface H.J. Jaansch *, P. Gerhard, M. Koch, D. Stahl

    E-Print Network [OSTI]

    as to understand the numerous phenomena occurring in catalytic reactions, corrosion, or lubrication phenomena. Many;diffusion phenomena and electric field gradients at surfaces. These experiments use highly polarized lithium

  13. Neutrinoless Double Beta Decay of Ge76, Se82, Mo100 and Xe136 to excited 0^+ states

    E-Print Network [OSTI]

    F. Simkovic; M. Nowak; W. A. Kaminski; A. A. Raduta; Amand Faessler

    2001-07-06T23:59:59.000Z

    The neutrinoless double beta decay transition to the first excited 0^+ collective final state is examined for A=76, 82, 100 and 136 nuclei by assuming light and heavy Majorana neutrino exchange mechanisms as well as the trilinear R-parity violating contributions. Realistic calculations of nuclear matrix elements have been performed within the renormalized quasiparticle random phase approximation. Transitions to the first excited two-quadrupole phonon 0^+ state are described within a boson expansion formalism and alternatively by using the operator recoupling method. We present the sensitivity parameters to different lepton number violating signals, which can be used in planning the neutrinoless double beta decay experiments. The half-life of neutrinoless double beta decay to the first excited state 0^+_1 is by a factor of 10 to 100 larger than that of the transition to the ground state.

  14. Enhanced high-order harmonic generation from Xe, Kr, and Ar in a capillary discharge B. A. Reagan,1

    E-Print Network [OSTI]

    Rocca, Jorge J.

    .17Up, where Ip is the ionization potential of the target atom and Up is the ponderomotive energy in poor phase-matching and conversion efficiency. Finally, the loss of the laser energy due, Delaware 19716, USA Received 26 February 2007; published 17 July 2007 We report the use of a preionized

  15. Measurement of the Double-Beta Decay Half-life of 136Xe in KamLAND-Zen

    E-Print Network [OSTI]

    Gando, A.

    2013-01-01T23:59:59.000Z

    by fallout from the Fukushima-I reactor accident in Marchof detector materials by Fukushima fallout, which includeCo are not detected near Fukushima or our soil samples, we

  16. A study of a special training approach for recreation and parks and resource development personnel

    E-Print Network [OSTI]

    Smith, James Stephen

    1968-01-01T23:59:59.000Z

    '!JIVEJJESS 0" Tiid ill ('I:i' VTID J, I . ?( I'I ' ?lT ?. ds ii, . nts . nd i s i r?etc Do'Ic, '?u ' oi . ?, , ~ ~ 58 60 i-. i 7o 0" 1. ooh '-oi ol' d. 10 . '. . ~ Coooi u&'i . zq Conmen'o. 7;3 75 77 1 Cl3 1 ST CF r i'K F'S '. ?1&c" subsc ibcd... to i?o fillin&' vacancies 'n the . . . idclc r. ana;or!cnt osr t'ore by level o~ &i vr?re?r I!t Fol. ' cy: ubscrii!??d to by r ?eral aoencies in fi' ling v?s??acies ir. the middle management positions oy o. xe"-reste'onal rn olvem rrt. Pn1' cy...

  17. o p-Ma Rn,an:h-Vol 34. No 8. pp-1353-1 Prinlcd in G~al Brilain-

    E-Print Network [OSTI]

    Canberra, University of

    of the distributions and geochemical behaviours of trace metals in the ocean (BURTONand STATHAM.1982; BRULAND.1983

  18. GwElrimicaet C~~rn~imim Acfa Vol. 55, pp. 18374858 Copyright0 1991 Paganon Rw pk. Printedin U.S.A.

    E-Print Network [OSTI]

    Zhu, Chen

    ) and in metasomatism through ionization of the acids HF and HCl (MEYER and HEMLEY,1967) hasled to considerable effort

  19. Oceanography and Marine Biology: an Annual Review 2003, 41, 311354 R.N. Gibson and R.J.A. Atkinson, Editors

    E-Print Network [OSTI]

    Smith, Craig

    on whale falls (407 species) is also high compared with cold seeps and rivals that of hydrothermal vents be whale-fall specialists. Nonetheless, whale falls also share 11 species with hydrothermal vents and 20; for example, the organic carbon contained in a 40-t whale ( 2 106 gC) is equivalent to that typically sinking

  20. INITIAL RESULTS FROM THE TOKAPOLE II POLOIDAL DIVERTOR EXPERIMENT A.P. Biddle, R.N. Dexter, R.J. Groebner, D.J. Holly,

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    be studied with or without ohmic heating. The versatility of the device allows a direct comparison of a wide and the renewed interest in internal ring devices as advanced fuel reactors and as poloidal divertors for tokamaks

  1. {sup 222}Rn in water: A comparison of two sample collection methods and two sample transport methods, and the determination of temporal variation in North Carolina ground water

    SciTech Connect (OSTI)

    Hightower, J.H. III [North Carolina Univ., Chapel Hill, NC (United States). Dept. of Environmental Sciences and Engineering] [North Carolina Univ., Chapel Hill, NC (United States). Dept. of Environmental Sciences and Engineering

    1994-12-31T23:59:59.000Z

    Objectives of this field experiment were: (1) determine whether there was a statistically significant difference between the radon concentrations of samples collected by EPA`s standard method, using a syringe, and an alternative, slow-flow method; (2) determine whether there was a statistically significant difference between the measured radon concentrations of samples mailed vs samples not mailed; and (3) determine whether there was a temporal variation of water radon concentration over a 7-month period. The field experiment was conducted at 9 sites, 5 private wells, and 4 public wells, at various locations in North Carolina. Results showed that a syringe is not necessary for sample collection, there was generally no significant radon loss due to mailing samples, and there was statistically significant evidence of temporal variations in water radon concentrations.

  2. Pulp and paper mill fibrous residuals in excavatable flowable fill Y.-m. Chun, T.R. Naik, & R.N. Kraus

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    biological treatment of wastewater. Fiber reclaim is composed of wood cellulose fibers and moisture mills Fibrous residuals from pulp and paper mills include wastewater-treatment residuals (also called sludge), fiber reclaim, and screening rejects. The basic components of the wastewater-treatment residuals

  3. Electron capture from H-2 to highly charged Th and Xe ions trapped at center-of-mass energies near 6 eV

    E-Print Network [OSTI]

    Weinberg, G.; Beck, B. R.; Steiger, J.; Church, David A.; McDonald, J.; Schneider, D.

    1998-01-01T23:59:59.000Z

    Ions with charge states as high as 80+, produced in the Lawrence Livermore National Laboratory electron beam ion trap were extracted and transferred to a Penning ion trap (RETRAP). RETRAP was operated at cryogenic temperature in the field of a...

  4. Dependence of cross sections for multi-electron loss by 6 mev/amu xe18+ ions on target atomic number

    E-Print Network [OSTI]

    Peng, Yong

    2004-09-30T23:59:59.000Z

    ions in the present energy and charge regime. A semiempirical calculation based the IEA shows that the average most probable impact parameter for electron loss is much smaller than the target molecular bond length. This result is believed to account...

  5. FASTGRASS: A mechanistic model for the prediction of Xe, I, Cs, Te, Ba, and Sr release from nuclear fuel under normal and severe-accident conditions

    SciTech Connect (OSTI)

    Rest, J.; Zawadzki, S.A. (Argonne National Lab., IL (United States))

    1992-09-01T23:59:59.000Z

    The primary physical/chemical models that form the basis of the FASTGRASS mechanistic computer model for calculating fission-product release from nuclear fuel are described. Calculated results are compared with test data and the major mechanisms affecting the transport of fission products during steady-state and accident conditions are identified.

  6. Amplified spontaneous emission over the XeF(D+X) transition in solid Kr H. Kunttu, W. G. Lawrence, and V. A. Apkariar?)

    E-Print Network [OSTI]

    Apkarian, V. Ara

    represent a novel family of lasers. High energy density, high efficiency, broad tunability, low pump, and these states are a! Alfred P. Sloan Fellow. efficiently populated by energy transfer from the high-lying to observe stimulated emission in other condensed phasetriatomic exciplexes, be it in solid, liquid

  7. Near-Intrinsic Energy Resolution for 30 to 662 keV Gamma Rays in a High Pressure Xenon Electroluminescent TPC

    E-Print Network [OSTI]

    Català, J.M.

    2014-01-01T23:59:59.000Z

    The search for neutrinoless double beta decay, Riv. NuovoSearch for Neutrinoless Double-Beta Decay in Xe Xe with EXO-

  8. Environmental application of stable xenon and radioxenon monitoring

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    1969) Atlantic Richfield Hanford Company, Richland WA. [8]Batches Processed through Hanford Separations Plants, 1944Locations Ref iso = Xe Ave. Hanford Fuel Xe) 216-Z-1A Pu

  9. Spring 2012 Prof. Hyesoon Kim

    E-Print Network [OSTI]

    Kim, Hyesoon

    ­ Logical: AND ORR EOR BIC ­ Comparisons: CMP CMN TST TEQ ­ Data movement: MOV MVN · These instructions only := Rn AND Op2 0001 EOR Logical bit-wise exclusive OR Rd := Rn EOR Op2 0010 SUB Subtract Rd := Rn ­ Op2: = Op2- Rn+C-1 1000 TST Test Scc on Rn AND Op2 1001 TEQ Test equivalence Scc on Rn EOR Op2 1010 CMP

  10. E-Print Network 3.0 - admitted cancer patients Sample Search...

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

    Polytechnique, Centre de mathmatiques Collection: Mathematics 4 George Lillie, RN, Infusion Unit nurse, with patient A Guide to the Cancer Center Summary: George Lillie, RN,...

  11. E-Print Network 3.0 - aborto ovino associado Sample Search Results

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

    and Ecology 24 Algebra Linear Licenciaturas: Eng. Biologica, Eng. Ambiente, Eng. Quimica, Quimica Summary: cao linear invertivel T : Rn Rn associado a um valor proprio...

  12. E-Print Network 3.0 - associados em adultos Sample Search Results

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

    Mathematics 36 Algebra Linear Licenciaturas: Eng. Biologica, Eng. Ambiente, Eng. Quimica, Quimica Summary: cao linear invertivel T : Rn Rn associado a um valor proprio...

  13. E-Print Network 3.0 - associado ou nao Sample Search Results

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

    Mathematics 7 Algebra Linear Licenciaturas: Eng. Biologica, Eng. Ambiente, Eng. Quimica, Quimica Summary: cao linear invertivel T : Rn Rn associado a um valor proprio...

  14. Dilepton production in schematic causal viscous hydrodynamics

    E-Print Network [OSTI]

    Song, Taesoo; Han, Kyong Chol; Ko, Che Ming.

    2011-01-01T23:59:59.000Z

    ;? ?n } pn ? { ? ? 2r v 2 r ? n + #17;? ?n } ( pi ?? ) n ? ? ? 2r v 2 r ? n ( pi ? ? ) n ] , (A1) ??r?n+1 [ ?n+1 ?n Tnsn+1 ? ( pi ? ? ) n ? ( pi ?? ) n ] = R2n R2n+1 ??r?n [ Tnsn ? { 1+ 2(?R ?R)n...#17;? ??r?nRn } ( pi ? ? ) n ? { 1+ (?R ?R)n#17;? ??r?nRn + #17;? ?n } ( pi ?? ) n ] , (A2) ??r?n+1 [ ( pi ?? ) n+1 ? ( pi ?? ) n ? 2 3 ( ?s ?pi ) n ] = R2n#17;? R2n+1 [{ 2??r?n ?n ? 1 (?pi )n } ( pi...

  15. E-Print Network 3.0 - acute surgical abdomen Sample Search Results

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

    Summary: Department Sheila Bycofski, RN Surgical Intensive Care Unit Terri Gillespie, RN Pediatric Intensive Care Unit... resuscitation and surgical interventions in all cases....

  16. Introduction to Riemannian holonomy

    E-Print Network [OSTI]

    Joyce, Dominic

    (n) be the holon- omy group of a Riemannian metric. Then G acts on k(Rn). Suppose 0 k(Rn) is nonzero and G

  17. RtS>-l-2437 Utilization of the Isotoplc Composition of

    E-Print Network [OSTI]

    131+Xe132. This conversion is of importance in the calculation of the total Xe generation duringRtS«>-l»-2437 3*- if, -. Utilization of the Isotoplc Composition of Xe and Kr in Fission Gas 4* #12;RIS�-M-2437 UTILIZATION OF THE ISOTOPIC COMPOSITION OF Xe AND Kr IN FISSION GAS RELEASE

  18. Mass Transportation on surfaces Ludovic Rifford

    E-Print Network [OSTI]

    Rifford, Ludovic

    Mass Transportation on surfaces Ludovic Rifford Universit´e de Nice - Sophia Antipolis Ludovic Rifford Mass Transportation on surfaces #12;Monge quadratic transport in Rn Let µ0 and µ1 be probability measures with compact support in Rn . We call transport map from µ0 to µ1 any measurable map T : Rn Rn

  19. Section 6: Material modelling in solid mechanics 1 Section 6: Material modelling in solid mechanics

    E-Print Network [OSTI]

    Kohlenbach, Ulrich

    -Zentrum Geesthacht), Jörn Mosler (Helmholtz- Zentrum Geesthacht, TU Dortmund): Thermodynamically and variationally

  20. Y.Takeuchi (ICRR)Y.Takeuchi (ICRR) for thefor the Super-KamiokandeSuper-Kamiokande CollaborationCollaboration

    E-Print Network [OSTI]

    Takeuchi, Yasuo

    (averaged in Jan. 1998) Water purification system Input water : water : water was made by bubbling method. (104Bq/m3 , 1.2 litter of Rn water) Water purification system collection 0V -1500V #12;7070LL RnRn detector for waterdetector for water Po+ Rn #12;Calibration of 70

  1. Title 40 CFR Part 191 Subparts B and C

    E-Print Network [OSTI]

    WIPP Waste Isolation Pilot Plant Elements and Chemical Compounds Am americium Pu plutonium Ra radium Rn

  2. Refined error estimates for matrix-valued radial basis functions

    E-Print Network [OSTI]

    Fuselier, Edward J., Jr.

    2007-09-17T23:59:59.000Z

    distribution: bf( ) := Z Rn f(x)e ixT d ; 8 and let the inverse Fourier transform of a function or tempered distribution be de ned by f(x) := 1 (2 )n Z Rn f( )ei T xd : If f is a matrix-valued function, we will take bf to be the matrix of Fourier transforms... use the Fourier transform to characterize H (Rn): H (Rn) := n u2L2(Rn) : bu( ) 1 + k k22 =2 2L2(Rn) o : The inner product in H (Rn) is given by hg;fiH (Rn) = Z Rn (1 + k k22) bf( )bg( )d : 2. Vector-valued Sobolev Spaces Let u : ! Rn, with uj...

  3. Spring 2011 Prof. Hyesoon Kim

    E-Print Network [OSTI]

    Kim, Hyesoon

    of : ­ Arithmetic: ADD ADC SUB SBC RSB RSC ­ Logical: AND ORR EOR BIC ­ Comparisons: CMP CMN TST TEQ ­ Data movement 0000 AND Logical bit-wise AND Rd := Rn AND Op2 0001 EOR Logical bit-wise exclusive OR Rd := Rn EOR Op2 Scc on Rn EOR Op2 1010 CMP Compare Scc on Rn - Op2 1011 CMN Compare negated Scc on Rn + Op2 1100 ORR

  4. Spring 2010 Prof. Hyesoon Kim

    E-Print Network [OSTI]

    Kim, Hyesoon

    AND Op2 0001 EOR Logical bit-wise exclusive OR Rd := Rn EOR Op2 0010 SUB Subtract Rd := Rn ­ Op2 0011 RSB 1000 TST Test Scc on Rn AND Op2 1001 TEQ Test equivalence Scc on Rn EOR Op2 1010 CMP Compare Scc on Rn of : ­ Arithmetic: ADD ADC SUB SBC RSB RSC ­ Logical: AND ORR EOR BIC ­ Comparisons: CMP CMN TST TEQ ­ Data movement

  5. Zajac, R.N. 1999. Understanding the seafloor landscape in relation to assessing and managing impacts on coastal environments. Pp 211-227 in: J.S. Gray, W. Ambrose Jr., A. Szaniawska (eds) Biogeochemical Cycling and Sediment

    E-Print Network [OSTI]

    Zajac, Roman N.

    of organisms, and have borne much of man's long history of development and associated environmental impacts IN RELATION TO IMPACT ASSESSMENT AND ENVIRONMENTAL MANAGEMENT IN COASTAL MARINE SEDIMENTS ROMAN N. ZAJAC impacts on coastal environments. Pp 211-227 in: J.S. Gray, W. Ambrose Jr., A. Szaniawska (eds

  6. ~~~~~~~~~~l~~~H~rn 1. Report No. I2. Government Accession No. 3. Recipiell L002250

    E-Print Network [OSTI]

    . These include work-at-home schemes and workplace decentralization with satellite work centers, as well as many through NTIS: National Technical Information Service 5285 Port Royal Road Springfield, Virginia 22161 1 20. Security Classif.{of this page) 21. No. of Pages Unclassified 186 ~ 22. Price19. Security Classif

  7. Properties of Some Integral Transforms Arising in Tomography

    E-Print Network [OSTI]

    Moon, Sunghwan

    2013-10-11T23:59:59.000Z

    , the inverse Fourier transform is f(x) = F?1fˆ(x) := 1 (2pi)n ? Rn fˆ(?)eix·?d?. The Plancherel theorem claims that for f, g ? L1(Rn) ? L2(Rn), one has ? Rn fˆ(?)gˆ(?)d? = 2pi ? Rn f(x)g(x)dx. (1.1) 2 The Fourier transform extends to a bijection from L2(Rn...: Let f ? S(Rn) and K be a convex compact set in Rn. If Rf(?, s) = 0 for every plane x · ? = s not meeting K, then f = 0 outside K. 4. Let Bn be the unit ball in Rn. For each ?, there exist positive constants c(?, n) and C(?, n) such that for any smooth...

  8. Xe films on a decagonal Al-Ni-Co quasicrystalline surface Wahyu Setyawan,1 Nicola Ferralis,2 Renee D. Diehl,2 Milton W. Cole,2 and Stefano Curtarolo1,

    E-Print Network [OSTI]

    Curtarolo, Stefano

    D. Diehl,2 Milton W. Cole,2 and Stefano Curtarolo1, * 1Department of Mechanical Engineering 2005; revised manuscript received 9 May 2006; published 28 September 2006 The grand canonical Monte of the decagonal Al73Ni10Co17 quasicrystal QC using the grand canonical Monte Carlo sim

  9. System size effects and N/Z dependence of balance energy for different isotopic series

    E-Print Network [OSTI]

    Aman D. Sood; Sakshi Gautam

    2011-12-13T23:59:59.000Z

    We study the N/Z dependence of energy of vanishing flow or balance energy for different isotopic series of various system masses like Ca+Ca, Ni+Ni, Zr+Zr, Sn+Sn and Xe+Xe. We find that balance energy decreases with N/Z of the system and follows a linear behaviour. The slope of N/Z dependence is steeper for lighter systems like Ca+Ca and less for heavier ones like Xe+Xe.

  10. March 4, 2013 R&D towards large-liquid scintillator detectors and measurement of

    E-Print Network [OSTI]

    McDonald, Kirk

    of experiments to search for the neutrinoless double beta decay of 136 Xe. The first such experiment, known

  11. Superconducting magnets and their radiation protections

    E-Print Network [OSTI]

    McDonald, Kirk

    + Epoxy Resin Beam Tube Insulation: GUG GF + Polyimido + Epoxy Cable insulation: Upilex-RN + Epoxy 30: Upilex-125RN Polyimido Plastic collar: PM9640 Glass Fiber (GF) + Phenol Resin Coil wedge: G-11 GF

  12. Copositive relaxation beats Lagrangian dual bounds in quadratically ...

    E-Print Network [OSTI]

    2014-09-19T23:59:59.000Z

    + := inf {q0(x) : qi(x) ? 0, i?[1:m], x ? Rn. +} ,. (5) where all qi are quadratic functions. Then z = [1,x ] ? Rn+1. + and X = zz is completely positive. Further, for Mi ...

  13. Assessing reliability in energy supply systems

    E-Print Network [OSTI]

    McCarthy, Ryan W.; Ogden, Joan M.; Sperling, Daniel

    2007-01-01T23:59:59.000Z

    R.N. , 1984. Power-system reliability in perspective, in:L. (Eds. ), 1991. Applied Reliability Assessment in ElectricR. , Allan, R.N. , 1996. Reliability Evaluation of Power

  14. Assessing Reliability in Energy Supply Systems

    E-Print Network [OSTI]

    McCarthy, Ryan; Ogden, Joan M.; Sperling, Dan

    2008-01-01T23:59:59.000Z

    R.N. , 1984. Power-system reliability in perspective, in:L. (Eds. ), 1991. Applied Reliability Assessment in ElectricR. , Allan, R.N. , 1996. Reliability Evaluation of Power

  15. Calculus of Variations

    E-Print Network [OSTI]

    Katharina Steingraeber Heidelberg 1107 1997 Oct 17 14:59:21

    2002-11-18T23:59:59.000Z

    Calc. Var. 15, 451–491 (2002). Calculus of Variations. Donatella Danielli ..... u ? W1,p loc (Rn) such that for every ? ? W1,p o. (Rn) with compact support. (2.14).

  16. A globally convergent trust-region algorithm for unconstrained ...

    E-Print Network [OSTI]

    2014-03-10T23:59:59.000Z

    Mar 10, 2014 ... In particular, M. J. D. Powell has contributed largely in this area. ...... (51). Given x ? Rn, the solution in Rn+1 of the linear system Dk z = (x,1) is.

  17. Motivational Factors in Registered Nurses Completing a Baccalaureate Completion Program

    E-Print Network [OSTI]

    Alonzo, Amanda Leigh

    2009-08-26T23:59:59.000Z

    The purpose of this qualitative descriptive study was to investigate what motivates associate degree (ADN) and diploma prepared registered nurses (RN) to pursue a baccalaureate degree (BSN) through an RN-to-BSN program. Studies have shown...

  18. On the Minimum Volume Covering Ellipsoid of Ellipsoids

    E-Print Network [OSTI]

    2005-01-12T23:59:59.000Z

    Jan 12, 2005 ... matrix Q and a center c ? Rn and is defined as. E = {x ? Rn : (x ? c)T Q(x ? c) ? 1}. (2). The matrix Q determines the shape and the orientation ...

  19. ENHANCING THE COMPETENCY OF THE CORRECTIONAL NURSING WORKFORCE

    E-Print Network [OSTI]

    Oliver, Douglas L.

    School of Nursing Deborah Shelton, PhD, RN, NE-BC, CCHP, FAAN E. Jane Martin Professor Associate Dean Butler, MA University of Connecticut School of Nursing: Denise Panosky, DNP, RN, CNE, CCHP, FCNS Funded

  20. VARIATIONS IN RADON-222 IN SOIL AND GROUND WATER AT THE NEVADA TEST SITE

    E-Print Network [OSTI]

    Wollenberg, H.

    2010-01-01T23:59:59.000Z

    water 222Rn by gamma-ray spectrometry. There was no clearlyradioelement content by gamma-ray spectrometry. Results are

  1. CUNY Unit Project Name Baruch Jump-starting Veterans' Career Success

    E-Print Network [OSTI]

    Rosen, Jay

    in Leadership in Transportation Industry SPS HIM York Onsite RN-BSN Program at North Shore LIJ Forest Hills Page

  2. Negative Diffusion and Traveling Waves in High Dimensional Lattice Systems

    E-Print Network [OSTI]

    Hupkes, H. J.; Van Vleck, Erik S.

    2013-01-01T23:59:59.000Z

    (x, t)] + f ( u(x, t) ; ? ) , parametrized by ? ? V ? R. The diffusion constant satisfies ? ? 0, the function u takes values in Rn for some n ? 2, the real (n × n)-matrices Aj have nonnegative entries, and the Jacobian D1f(· ; ?) has nonnegative off...-diagonal elements. The shifts r0 < r1 < · · · < rN can be taken to be both positive and negative, i.e., r0 < 0 < rN . We are interested in nonlinearities f that are bistable. In particular, writing 0 = (0, . . . , 0) ? Rn and 1 = (1, . . . , 1) ? Rn, we assume...

  3. GENERATION OF RADIOXENON ISOTOPES

    SciTech Connect (OSTI)

    McIntyre, Justin I.; Pratt, Sharon L.; Bowyer, Ted W.; Cooper, Matthew W.; Hayes, James C.; Heimbigner, Tom R.; Hubbard, Charles W.; Miley, Harry S.; Ripplinger, Mike D.

    2008-09-23T23:59:59.000Z

    With the continued population of the International Monitoring System (IMS) network and the certification of radioxenon laboratory systems it has become necessary to calibrate and test these systems using as many of the radioxenon isotopes as possible. Several very promising techniques have been explored recently that allow for convenient production of Xe-133, Xe-131m, the short-lived isotope Xe-135, and even the difficult to obtain Xe-133m. IMS national and international laboratories have traditionally obtained Xe-133 from medical isotope suppliers. The activity of these medical dose samples is extremely high (~ 740 MBq) and requires very careful fume hood work to dilute down to appropriate levels (~ 10 Bq). By waiting for 10 or more half-lives it is possible to reduce the handling regimen considerably, while also obtaining a strong Xe-131m signature due to its longer half-life (11.9 days). The short-lived isotope Xe-135 (9.14 hrs) and the longer lived parent nuclide Xe-133m (2.2 day half-life) are never present in these samples. To obtain these isotopes another source or technique is required. This paper will discuss the two techniques developed and implemented at Pacific Northwest National Lab (PNNL) and show the results obtained from each technique. The first is an in-house method that allows for on demand production of two of these isotopes, Xe-133 and Xe-135, using HEU and a modest flux neutron source. The second method uses a research reactor at the Pullman campus of Washington State University to produce Xe-133, Xe-133m and Xe-135.

  4. The Enriched Xenon Observatory

    SciTech Connect (OSTI)

    Dolinski, M. J. [Stanford University Physics Department, 382 Via Pueblo Mall, Stanford, CA 94305-4060 (United States)

    2009-12-17T23:59:59.000Z

    The Enriched Xenon Observatory (EXO) experiment will search for neutrinoless double beta decay of {sup 136}Xe. The EXO Collaboration is actively pursuing both liquid-phase and gas-phase Xe detector technologies with scalability to the ton-scale. The search for neutrinoless double beta decay of {sup 136}Xe is especially attractive because of the possibility of tagging the resulting Ba daughter ion, eliminating all sources of background other than the two neutrino decay mode. EXO-200, the first phase of the project, is a liquid Xe time projection chamber with 200 kg of Xe enriched to 80% in {sup 136}Xe. EXO-200, which does not include Ba-tagging, will begin taking data in 2009, with two-year sensitivity to the half-life for neutrinoless double beta decay of 6.4x10{sup 25} years. This corresponds to an effective Majorana neutrino mass of 0.13 to 0.19 eV.

  5. Higher dimensions Max flow min cut in higher dimensions

    E-Print Network [OSTI]

    Duval, Art

    , and direction) to each edge such that: net flow at each vertex, except S and T, is zero; and |xe| e. Value-negative number, and direction) to each edge such that: net flow at each vertex, except S and T, is zero; and |xe of flow xe (non-negative number, and direction) to each edge such that: net flow at each vertex is zero

  6. Higher dimensions Max flow min cut in higher dimensions

    E-Print Network [OSTI]

    Duval, Art

    -negative number, and direction) to each edge such that: net flow at each vertex, except S and T, is zero; and |xe, and direction) to each edge such that: net flow at each vertex is zero; and |xe| e. Value of flow is x0. Duval: net flow at each vertex is zero; and |xe| e. Value of flow is x0. Definition Cut is minimal set

  7. Adsorption of atmospheric organic pollutants by carbonaceous adsorbents

    E-Print Network [OSTI]

    Coley, James Bowlin McCoy

    1981-01-01T23:59:59.000Z

    College, PA) and the Ambersorb adsorbents XE-340, XE-347 and XE-348 (donated by Rohm and Haas, Philadelphia, PA). Each of the Ambersorb adsorbents was individually ground in a U. S. Stoneware Ball Mill (Department of Mechanical Engineering, Texas A&M...ADSORPTION OF ATMOSPHERIC ORGANIC POLLUTANTS BY CARBONACEOUS ADSORBENTS A Thesis by JAMES BOWLIN McCOY COLEY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER...

  8. L E I B N I Z U N I V E R S I T T H A N N O V E RN E U E M A T E R I A L I E N Ionen und Autos

    E-Print Network [OSTI]

    Vollmer, Heribert

    Entwicklung leistungs- fähiger Energiespeicher. WAS DIE MOBILIT�T VON ELEKTROAUTOS MIT DER MOBILIT�T VON wieder ein- schränkt. Selbstverständlich muss der Energiespeicher auch sicher sein. Gut ein Jahr ist nun- zellen hatten dazu geführt, dass in mehreren Flugzeugen der Energiespeicher in Flam- men aufging. Ein

  9. E-Print Network 3.0 - atomic xenon laser Sample Search Results

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

    laser-polarized 129 Xe via flow and diffusion. Fig. 2 shows the penetration of xenon into aerogel... , a common situation in industrial processes that use heterogeneous catalysts....

  10. LES KARATES UNE COMMUNAUTE CAIROTE A L'HEURE DE L'TAT-NATION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ensuite en Palestine au Xe siècle, et arriva en Egypte. Un certain nombre de familles persanes, dont les

  11. Environmental application of stable xenon and radioxenonmonitoring

    SciTech Connect (OSTI)

    Dresel, P. Evan; Olsen, Khris B.; Hayes, James C.; McIntyre,Justin I.; Waichler, Scott R.; Milbrath, Brian D.; Cooper, Matt; Kennedy,B. Mack

    2006-09-05T23:59:59.000Z

    Characterization of transuranic waste is needed to makedecisions about waste site remediation. Soil-gas sampling for xenonisotopes can be used to define the locations of spent fuel andtransuranic wastes. Radioxenon in the subsurface is characteristic oftransuranic waste and can be measured with extreme sensitivity usinglarge-volume soilgas samples. Measurements at the Hanford Site showed133Xe and 135Xe levels indicative of 240Pu spontaneous fission. Stablexenon isotopic ratios from fission are distinct from atmospheric xenonbackground. Neutron capture by 135Xe produces an excess of 136Xe inreactor-produced xenon providing a means of distinguishing spent fuelfrom separated transuranic materials.

  12. Cooperative optimal path planning for herding problems

    E-Print Network [OSTI]

    Lu, Zhenyu

    2009-05-15T23:59:59.000Z

    can include lower and upper limits on the control. The controls (speed of the 7 pursuer) are restricted in the following manner: Controls : 8 >>>: _xp 2 [?1;1] _yp 2 [?1;1] (2.4) We determine difierential equations for the states by manipulating... only take the minus sign for _xe and _ye. So state equations are: State Equations : 8 >>>: _xe = ?1r cos( ) _ye = ?1r sin( ) (2.9) where: r = q (xp ?xe)2 +(yp ?ye)2 = tan?1 ?y p ?ye xp ?xe ! 8 For a representative computation, the initial conditions...

  13. A Search for Neutrinoless Double-Beta Decay with EXO-200 .

    E-Print Network [OSTI]

    Slutsky, Simon

    2013-01-01T23:59:59.000Z

    ??This work presents a search for neutrinoless double beta decay of 136Xe using data from the EXO-200 detector collected between 2011 and 2012. Neutrinoless double… (more)

  14. September 14. 2010 Romualdo de Souza

    E-Print Network [OSTI]

    de Souza, Romualdo T.

    functions and collective motion in Xe+Au collisions at E/A=50 MeV, G. Verde, P. Danielewicz, W.G. Lynch, C

  15. Nuclear magnetic resonance of laser-polarized noble gases in molecules, materials and organisms

    E-Print Network [OSTI]

    Goodson, B.M.

    2010-01-01T23:59:59.000Z

    r I- t of silica aerogels by Xe-129 NMR spectroscopy andcatalysts, ceramics, aerogels, food products, and antiquatedxenon penetration within an aerogel sample as a function of

  16. Aerial Measurement of Radioxenon Concentration off the West Coast of Vancouver Island following the Fukushima Reactor Accident

    E-Print Network [OSTI]

    L. E. Sinclair; H. C. J. Seywerd; R. Fortin; J. M. Carson; P. R. B. Saull; M. J. Coyle; R. A. Van Brabant; J. L. Buckle; S. M. Desjardins; R. M. Hall

    2011-06-20T23:59:59.000Z

    In response to the Fukushima nuclear reactor accident, on March 20th, 2011, Natural Resources Canada conducted aerial radiation surveys over water just off of the west coast of Vancouver Island. Dose-rate levels were found to be consistent with background radiation, however a clear signal due to Xe-133 was observed. Methods to extract Xe-133 count rates from the measured spectra, and to determine the corresponding Xe-133 volumetric concentration, were developed. The measurements indicate that Xe-133 concentrations on average lie in the range of 30 to 70 Bq/m3.

  17. NEW ESTIMATES IN HARMONIC ANALYSIS FOR MIXED LEBESGUE SPACES

    E-Print Network [OSTI]

    Ward, Erika L.

    2010-07-16T23:59:59.000Z

    (Rn), the space of tempered distributions, is its dual. Definition 1.1.6. Let f 2S(Rn). Then the Fourier transform of f is given by ˆf(x)= Z Rn f(x)e ix x dx: It extends to an isomorphism on L2(Rn) and its inverse on S is given by f(x)= 1(2p)n Z Rn ˆf...p 1x y, which satisfies (1.1), (1.2), (1.3). The higher dimensional analogues are the Riesz transforms: R j f(x)=Cn p:v: Z x j y j jx yjn+1 f(y) dy for f 2S(Rn) and 1 j n. The kernels of the Reisz transforms also are standard kernels. Moreover...

  18. Exercise 0.1 (Primal and dual problem in the sense of optimization theory). Suppose C End(Rp) to be symmetric and positive definite; that is, Cy, y = y, Cy and y, Cy 0 for all y Rp,

    E-Print Network [OSTI]

    Kolk, Johan A.C.

    the quadratic function P : Rn R by P(x) = 1 2 At CAx, x - a, x . (ii) For x Rn, show by means of part (i) that DP(x) = 0 if and only if x satisfies the linear equation AtCAx = a and that such an x is unique, for y V and x Rn, that we have Q(y) -P(x), with equality if and only if y = CAx. Using part (ii

  19. E-Print Network 3.0 - antipsychotic agents Sample Search Results

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary: used...

  20. E-Print Network 3.0 - atypical antipsychotics improves Sample...

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary: ....

  1. E-Print Network 3.0 - aripiprazole improves depressive Sample...

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary:...

  2. E-Print Network 3.0 - antipsychotics modulate gr Sample Search...

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary:...

  3. E-Print Network 3.0 - atypical antipsychotic treatment Sample...

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary: ....

  4. E-Print Network 3.0 - antipsychotic drug clozapine Sample Search...

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary: ,...

  5. E-Print Network 3.0 - aripiprazole star study Sample Search Results

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary:...

  6. E-Print Network 3.0 - amitriptyline exert common Sample Search...

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

    Associated with the Onset of Tardive Dyskinesia Christine B. Hunter, RN, Christopher Kenney, MD, Nicte Mejia, MD, Anthony Davidson, BS, and Joseph Jankovic, MD Summary: .7%)...

  7. Correction-solution partielle des Feuilles 1 8 Exercice 1.1 : Solutions

    E-Print Network [OSTI]

    Mas, André

    STIA3 Correction-solution partielle des Feuilles 1 à 8 Exercice 1.1 : Solutions : Df = R+ Dg = Rn 5

  8. Universal Constructions in Umbral Calculus 1 Introduction

    E-Print Network [OSTI]

    Ray, Nige

    ). Such an r is determined by its umbra, or sequence of values r(xn ) = rn, and acts on the left of R

  9. Universal Constructions in Umbral Calculus Nigel Ray

    E-Print Network [OSTI]

    Ray, Nige

    (x)) = p(0). Such an r is determined by its umbra, or sequence of values r(xn) = rn, and acts on the left

  10. E-Print Network 3.0 - adult female patients Sample Search Results

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

    MD, Grace Walker, RN... of the TC in female patients would be associated with less looping than the PVSC during the procedure, fewer... . Setting: University endoscopy...

  11. WHICH NONNEGATIVE MATRICES ARE SLACK MATRICES? 1 ...

    E-Print Network [OSTI]

    2013-03-22T23:59:59.000Z

    Section 2 we establish linear algebraic characterizations: Theorem 1 for cones ... K ? Rn, lineal(K) is the largest subspace contained in K, known as the lineality.

  12. D-ADMM: A Communication-Efficient Distributed Algorithm For ...

    E-Print Network [OSTI]

    2012-02-13T23:59:59.000Z

    graph, In is the identity matrix in Rn, and ? is the Kronecker product. Each column ...... program, which we solve with Matlab's quadprog function. Algorithm 3 was ...

  13. Lund University -the ATLAS group ATLAS experiment: New energy frontier

    E-Print Network [OSTI]

    Eerola, Paula

    coordination Göran Jarlskog, professor emeritus Balazs Konya, post-doc, GRID www.quark.lu.se/~atlas Björn

  14. aluminium foam-filled sections: Topics by E-print Network

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

    compressed sensing maps M : RN Rk (for k to compressed sensing Subspaces from expanderTanner codes Constant distortion construction Explicit Randriam, Hugues...

  15. asce baltimore section: Topics by E-print Network

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

    compressed sensing maps M : RN Rk (for k to compressed sensing Subspaces from expanderTanner codes Constant distortion construction Explicit Randriam, Hugues...

  16. building.ppt

    E-Print Network [OSTI]

    Building Parenting Skills and Interactions with Kangaroo Care. Sharon A. Wilkerson, PhD, RN. Associate Professor of Nursing. Purdue University. West Lafayette ...

  17. Ophiostoma protearum sp.nov. associated with Pro tea caffra infructescences

    E-Print Network [OSTI]

    ~sccnccs of Proh'll caJfra wcre colkucd in the Ugie area (East~rn Cape Province), Drakensherg i\\.1ounrains (Kwazulu

  18. E-Print Network 3.0 - adding black seeds Sample Search Results

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

    Wetlands Program Collection: Environmental Sciences and Ecology ; Geosciences 75 USDA Forest Service RMRS-RN-35. 2008. 1 United States Summary: and soil seed banks in an...

  19. Regulation of branching by phytochrome B and PPFD in Arabidopsis thaliana

    E-Print Network [OSTI]

    Chou, Nan-yen

    2008-10-10T23:59:59.000Z

    …………………...................…….............................. 10 Interval between anthesis and the onset of elongation of the topmost three rosette buds of WT, phyA, phyB, and phyAphyB under low light……........ 11 The lengths of the main inflorescence (M), the topmost rosette branch R(n), the next topmost... rosette branch R(n-1), and the third topmost rosette branch R(n-2) of WT, phyA, phyB, and phyAphyB from the day of the onset of elongation of bud R(n) to the 10 th day after anthesis under low light..….......... 33 35 36 36 38 39 40 41 44 45 46...

  20. Bilinear Littlewood-Paley Square Functions and Singular Integrals

    E-Print Network [OSTI]

    Hart, Jarod Victor

    2013-05-31T23:59:59.000Z

    will assume a background knowledge of real analysis, measure theory, functional analysis, and some elements of Fourier analysis. 1.1 Geometric Notation Fix an integer dimension n ? N, and the Euclidean space Rn. For x ? Rn, define the Euclidean distance |x...|= ( n ? i=1 |xi| 2 ) 1 2 . For a complex number x+ iy ?C, define the modulus |x+ iy|= |(x,y)|. Given a Lebesgue measurable set E ?Rn, define |E| to be the Lebesgue measure of E. For x ?Rn and R > 0 7 define the ball centered at x of radius R B(x,R) = {y...

  1. accuracy certificates for computational problems with convex structure

    E-Print Network [OSTI]

    2008-11-26T23:59:59.000Z

    where X is a solid (compact convex set with a nonempty interior) in Rn, and F : X ..... works. Elementary properties of weak solutions to VIP's with monotone ...

  2. E-Print Network 3.0 - arctic slope annual Sample Search Results

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

    & Permafrost Salinity Vegetation Arctic... Storage Change P + Gin -(Q + ET + Gout) S Rn - G Le + H 12;Arctic Land Water Cycle: key features Source: Houser, Paul R....

  3. anesthetics equilibrium measurements: Topics by E-print Network

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

    etched CR-39 SSNTD Biology and Medicine Websites Summary: .60 Keywords: Radon progeny concentration; Equilibrium factor; CR-39 1. Introduction Inhaled radon (222 Rn...

  4. Generalized score tests for missing covariate data

    E-Print Network [OSTI]

    Jin, Lei

    2009-05-15T23:59:59.000Z

    that n?12U(?,?piN,0) = n?12U(?,pi,??) +Op(?n), n?12UA(?,?piN, ???N) = Op(?n), (2.7) where UA(?,pi,?) = summationtextni=1(1? ?ipii)?(yi,zi), and ?n = braceleftbignh2s + (nh2d)?1bracerightbig12. 13 Liang, Wang, Robins, and Carroll (2004) used different...) +Rn1, U2(??) = U2(?) +E(?U2?? 1 )(??1 ??1) +Rn2, where the remainders Rn1, Rn2 are relatively negligibly small with order Op(1) under H0 and the partial derivatives above are row vectors. By combining the two equations above, we have U2(??) = (?A...

  5. RESEARCH Open Access Ambulatory care for HIV-infected patients

    E-Print Network [OSTI]

    , Rolf Kaiser3 , Björn Jensen4 , Thomas Lengauer5 , Gerd Fätkenheuer3 , Heribert Knechten6 , Martin Hower

  6. Introduction A problem of testing membership to a semialgebraic set was considered by *

    E-Print Network [OSTI]

    Grigoriev, Dima

    apply them to define the "standard part" Ki = st(Ki) Rn. We show (Corollary to Lemm* *a 3 in Section

  7. Mathematical Programming SERIES A and B

    E-Print Network [OSTI]

    7

    2015-01-15T23:59:59.000Z

    Jan 5, 2015 ... this we provide another tool that speeds up implementations of ... denote the orthogonal projections of Rn onto NA and RA as PA and QA re-.

  8. Microsoft PowerPoint - Module 13 - Fission Product Transport...

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

    data Comparison of code predictions with data - In-pile test data - Reactor surveillance data 2 Introduction and Background * HTGR designs employ multiple radionuclide (RN)...

  9. Convex Approximations of Chance Constrained Programs

    E-Print Network [OSTI]

    2005-12-20T23:59:59.000Z

    ?Technion – Israel Institute of Technology, Haifa 32000, Israel, ... distributions due to A. Prekopa [22] – a wide family of probability distributions on Rn such that.

  10. (c l.O), 240 mp (e 13,300), XE;l3 6.02 and 6.25 p. Anal. Calcd. for G1Ha20: C, 83.94; H, 10.73. Found: C, 83.84; H,

    E-Print Network [OSTI]

    Berry, R. Stephen

    -108.5", [a]z4~ +64" (c l.O), +4160", [$]:BO;lgh -2240". Anal. Calcd. for C~gH300: C, 83.15; H, 11.01. Found

  11. The effect of geometry on symbology recognition

    E-Print Network [OSTI]

    Boyless, James Andrus

    2012-06-07T23:59:59.000Z

    displays' Of the twenty geometric forms tested it was reported that the best combinations of five symbols each were 1 ) rectangle, circle, zig-zag Z, cross, and semicircle or 2) cross, semicircle, ellipse, triangle, and square. These studies led...AaTA fiue 1e Tte1ap 1sa[[errrs aq1 uJaosrp o1 1o[rd aq1 aJTnbaJ uot1eurJogut go sadfi1 q1oH srUa1sfis fieydstp pue s1uaurnJ1sut 1geJoJre aq1 rrroJQ pa~taoaJ st uo rlerUJogut 1oaJTpuZ '1geJoJ&e aq1 go 1uarUuoJznua TeuJa1xa aq1 rUoJg pawTaoaJ st uoT, 1errr...

  12. Time-reversal invariance violation measurement using polarized neutron scattering from polarized xenon

    E-Print Network [OSTI]

    Pinghan Chu

    2014-03-06T23:59:59.000Z

    We proposed to use polarized neutrons scattering from a hyperpolarized 131Xe gaseous target in order to measure time-reversal violation effect in baryon processes with nucleons. This article provides a brief introduction, historical review, and possible methods to construct a hyperpolarized 131Xe gaseous target.

  13. Two Dimensional Hybrid Model of a Miniaturized Cylindrical Hall Thruster

    E-Print Network [OSTI]

    @laplace.univ-tlse.fr. § Research Physicist, PPPL, Princeton, yraitses@pppl.gov. ** Research Physicist, Tri Alpha Energy Inc experimentally has been carefully studied and can be attributed to double charged ions. The low energy ions voltage W = electron-wall effective energy loss coefficient x, r = axial, radial coordinate Xe+ , Xe2

  14. Electronic desorption of alkyl monolayers from silicon by very highly charged ions

    E-Print Network [OSTI]

    -assembled alkyl monolayers SAM on Si 111 .13 AFM images of SAMs after exposure to Xe41 and Au63 show craters ions, like Xe41 and Th73 . Atomic force microscope images show craters from single ion impacts be used to modify surfaces at very low impact energies. Impact energies are limited by the image charge

  15. Surface-plasmon exploration of multilayer physisorbed and chemisorbed films on metal substrates

    SciTech Connect (OSTI)

    Bretz, M.

    1984-03-31T23:59:59.000Z

    Over the course of this 3 year DOE contract we have built up a high quality Surface Plasmon Resonance apparatus, surveyed Xe, O/sub 2/ and CO multilayer adsorption of silver, made several appropriate experimental modifications and then obtained data on low pressure bulk formation of Xenon multilayers. A publication of current Xe results is now in preparation.

  16. Actinide production from xenon bombardments of curium-248

    SciTech Connect (OSTI)

    Welch, R.B.

    1985-01-01T23:59:59.000Z

    Production cross sections for many actinide nuclides formed in the reaction of /sup 129/Xe and /sup 132/Xe with /sup 248/Cm at bombarding energies slightly above the coulomb barrier were determined using radiochemical techniques to isolate these products. These results are compared with cross sections from a /sup 136/Xe + /sup 248/Cm reaction at a similar energy. When compared to the reaction with /sup 136/Xe, the maxima in the production cross section distributions from the more neutron deficient projectiles are shifted to smaller mass numbers, and the total cross section increases for the production of elements with atomic numbers greater than that of the target, and decreases for lighter elements. These results can be explained by use of a potential energy surface (PES) which illustrates the effect of the available energy on the transfer of nucleons and describes the evolution of the di-nuclear complex, an essential feature of deep-inelastic reactions (DIR), during the interaction. The other principal reaction mechanism is the quasi-elastic transfer (QE). Analysis of data from a similar set of reactions, /sup 129/Xe, /sup 132/Xe, and /sup 136/Xe with /sup 197/Au, aids in explaining the features of the Xe + Cm product distributions, which are additionally affected by the depletion of actinide product yields due to deexcitation by fission. The PES is shown to be a useful tool to predict the general features of product distributions from heavy ion reactions.

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

    SciTech Connect (OSTI)

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

    2012-09-21T23:59:59.000Z

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

  18. The role of lattice excitation in Si etching

    E-Print Network [OSTI]

    Blair, Michael Ryan

    2014-01-01T23:59:59.000Z

    The chemistries of fluorine, F?, and xenon difluoride, XeF?, with clean Si are basically the same, while their chemistries diverge dramatically past I ML F coverage. With a clean Si surface, F? and XeF? react utilizing an ...

  19. ANION AND CATION CHANNELS IN THE THYLAKOID MEMBRANE 1.1. Pottosin & G. Schonknecht

    E-Print Network [OSTI]

    Schönknecht, Gerald

    . The open probability of a particular ion channel was calculated as the relative time spent in the open.5 in the bath, in the patch pipette 100 rnM KCl was substituted by 15 rnM KCl). Under these conditions the net current through a permselective ion channel at zero voltage has an amplitude different from zero. The sign

  20. INTERIOR-POINT METHODS FOR NONCONVEX NONLINEAR ...

    E-Print Network [OSTI]

    2005-11-04T23:59:59.000Z

    Nov 4, 2005 ... where x ? Rn are the decision variables, f : Rn ? R is the objective function, ... problem is not convex, the algorithm will be searching for a local optimum. ..... the terms in the barrier objective of our infeasible interior-point method. ..... In order to enter dual feasibility restoration mode, we monitored the ...

  1. Calcolo Numerico I -a.a. 2010-2011 Laboratorio 9 -Sistemi lineari

    E-Print Network [OSTI]

    Causin, Paola

    Calcolo Numerico I - a.a. 2010-2011 Laboratorio 9 - Sistemi lineari Fattorizzazione di Cholesky Se sistemi triangolari RT y = b Rx = y Metodi Iterativi per sistemi lineari Il metodo di Jacobi Dati una matrice A RNÃ?N non singolare e un vettore b RN , il metodo di Jacobi approssima la soluzione x RN del

  2. EERSTE DEELTENTAMEN WISB 212 Analyse in Meer Variabelen

    E-Print Network [OSTI]

    Kolk, Johan A.C.

    the quadratic function P : Rn R by P(x) = 1 2 At CAx, x - a, x . (ii) For x Rn, show by means of part (i) that DP(x) = 0 if and only if x satisfies the linear equation AtCAx = a and that such an x is unique

  3. Scou%ng Hazardous Environments With Thermal Imaging Ryan Stevenson, Josh Kay, Azim Muqtadir

    E-Print Network [OSTI]

    Liebling, Michael

    of 12 FLIR Lepton Cameras, an accelerometer, a RN-XV WiFly Module, a Tiva C-Ion BaXery RN-XV WiFi I2C UART Hardware FLIR Lepton Thermal Camera and thermal cameras in the device and then use FLIRs MSX blending algorithm to give

  4. Genome-Wide High-Throughput Screening to Investigate Essential Genes Involved in Methicillin-Resistant Staphylococcus aureus Sequence Type 398 Survival

    E-Print Network [OSTI]

    Christiansen, Mette T.; Kaas, Rolf S.; Chaudhuri, Roy R.; Holmes, Mark A.; Hasman, Henrik; Aarestrup, Frank M.

    2014-02-12T23:59:59.000Z

    ) [21] and S. aureus RN4220 were grown in Brain Heart Infusion (BHI) (Oxoid, Difco) broth at 37uC with aeration. S. aureus SH1000 pMARGH2b, S. aureus SH1000 pFA545 and S. aureus RN4220 pFA545gen were grown in BHI or Tryptic Soy Broth (TSB) (Oxoid) with 5...

  5. UNCORRECTEDPROOF The use of scintillometry for validating aggregation schemes over

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    evapotranspiration is based on the use of aggregation schemes in conjunction with energy-balance or land of the energy balance providing the estimates of the available energy (AE(=Rn À G), where Rn and G are the net the Marrakech city (Morocco), have been used to test the aggregation schemes. The Agdal oliveyard was made up

  6. MIT Joint Program on the Science and Policy of Global Change

    E-Print Network [OSTI]

    Emissions Trading: A Laboratory Test Björn Carlén Report No. 96 January 2003 #12;The MIT Joint Program paper #12;Market Power in International Carbon Emissions Trading: A Laboratory Test Björn Carlén in international greenhouse gas emissions trading has led several policy analysts to express concerns that trade

  7. A Prototype Radon Filter for Air A typical, recurring problem in low-background physics is the contamination of sensitive

    E-Print Network [OSTI]

    is the contamination of sensitive surfaces of experimental apparata with the radioactive decay products of 222Rn . What since all its daughters are short-lived and decay away in a few days (see the 232Th radioactive chain.1: The 232Th natural radioactive chain. Diffusion of thoron (220Rn) and plate out of its daughters doesn

  8. Teorema de Frobenius e Aplica,c"oes O objetivo deste texto 'e unificar algumas situa,c"oes que aparecem em geom*

    E-Print Network [OSTI]

    Tausk, Daniel Victor

    algumas situa,c"oes que aparecem em geom* *etria dife- rencial nas quais se usa o teorema de Frobenius identificamos 1-formas e campos vetorias em Rn. Esta 'e uma EDP particular* *mente simples j'a que a inc para um dado campo vetorial F em um aberto U Rn. Sabemos que tal potencial existir'a localmente

  9. UCHC Competency Checklist: ANNUAL Position Title: Registered Nurse, JDH Employee Name: Unit: Cancer Center

    E-Print Network [OSTI]

    Oliver, Douglas L.

    COMPETENCIES Alaris Pump-use of guardrails, secondary infusion tubing V LEVEL 3: UNIT SPECIFIC COMPETENCIES Alaris Pump ­ use of new chemotherapy administration tubing (Infusion RN) V, RD 5-FU Infusion Pump (Infusion RN) V Safe Handling of Hazardous Drugs ­ Proper PPE and Double Gloving B. DOCUMENTATION

  10. A SURVEY ON THE KREINVON NEUMANN EXTENSION, THE CORRESPONDING ABSTRACT BUCKLING PROBLEM, AND WEYL-TYPE

    E-Print Network [OSTI]

    Teschl, Gerald

    H to an abstract buckling problem operator. In the concrete case where S = -|C 0 () in L2(; dnx-type domains = Rn\\K, n 3, with K Rn compact and vanishing Bessel capacity B2,2(K) = 0, to prove equality of Friedrichs and Krein Laplacians in L2(; dnx), that is, -|C 0 () has a unique nonnegative self

  11. Part I--Mechanics J04M.1--Bead on a Wire (J06M.3) J04M.1--Bead on a Wire (J06M.3)

    E-Print Network [OSTI]

    Petta, Jason

    axis with constant angular velocity . Earth's gravity causes acceler- ation g in the negative z Law Central Force (J06M.2) Problem A particle of mass m moves in an attractive, power-law central force, F r-n . Define constant k so that the potential energy is U(r) = - k rn-1 . The particle is set

  12. ZEROS OF CHARACTERS OF FINITE GROUPS Gunter Malle, Gabriel Navarro and Jrn B. Olsson

    E-Print Network [OSTI]

    Olsson, Jørn Børling

    ZEROS OF CHARACTERS OF FINITE GROUPS Gunter Malle, Gabriel Navarro and Jørn B. Olsson Universit the Institute for its hospitality. Typeset by AMS-TEX 1 #12;2 Gunter Malle, Gabriel Navarro, Jørn B. Olsson 2

  13. Solvation studies on anion radicals of alkyl nitrobenzene derivatives in acetonitrile-alkyl alcohol solvent mixtures at 25 p0 sC

    E-Print Network [OSTI]

    Chu, William Wen-Chen

    2012-06-07T23:59:59.000Z

    ) =CONST( IMI r K) TN( I ) =TO( I ) ?C(NP IBYZ+IMI ) RD= R 0+T 0 ( I ) 10 RN=RN+TiN ( I ) RDSQ=RD??2 RDCB=RDSQ?RD FO=RN/RD-Y(K) RDEN( 1)=RD RNUM( 1) =RN 00 20 I = 2 1 NPIBY2 IM1=1 ? I RDEN ( I ) =R DEN ( I Ml )- TD ( I Ml ) 20 RNUM( I ) =RNUM...( IMI)-TN( IMI) 00 95 I =1rNI4llBY'2 Fl. ( I ) =( RD?RNUM( I )-RN?RDEN( I ) ) / DO 90 J=NP18Y2 N MINUS= J-NM18Y2 82( lr J)=TD(MINUS)/(RDSQ?C(I ) ). IF(MINUSrLT ~ I ) GO TO 1010 F2(lrJ)= RDEN(I)?F2((rJ) RDSQ?C( I) GO TO 90 10 10 F2( I J) =(RD...

  14. Analysis of incipient fault signatures in inductive loads energized by a common voltage bus

    E-Print Network [OSTI]

    Bade, Rajesh Kumar

    2006-04-12T23:59:59.000Z

    for monitoring fre- quency components associated with faults; b) Use of internal or external search coils to measure variations in the magnetic flux density as a function of time; c) Monitoring 5 the twice-slip frequency components induced in the motor torque...rn?1 Lr1rn ?Le Lr2r1?Lb Lmr+2(Lb+Le) ::: Lr2rn?1 Lr2rn ?Le ... ... ... ... ... ... Lrn?1r1 Lrn?1r2 ::: Lmr+2(Lb+Le) Lrn?1rn ?Le Lrnr1?Lb Lrnr2 ::: Lrnrn?1 Lmr+2(Lb+Le) ?Le ?Le ?Le ::: ?Le ?Le nLe 3 77 77 77 77 77 77 77 77 77 5 3. Calculation of Torque...

  15. Method for the preparation of radon-211. [Patent application

    DOE Patents [OSTI]

    Meyer, G.J.; Lambrecht, R.M.

    1980-10-10T23:59:59.000Z

    A method is claimed for the production of /sup 211/Rn which can be easily isolated from the target and obtained in high yields. It is claimed that the radioisotope /sup 211/Rn can be prepared by the bombardment of /sup 209/Bi with /sup 7/Li particles using the nuclear reaction /sup 209/Bi(/sup 7/Li,5n)/sup 211/Rn. The /sup 211/Rn can be isolated from the target quite easily by degassing at elevated temperatures and the radiochemical purity of the product is better than 98%. It can thus be used as a generator system for /sup 211/At which is of potential interest in biomedical applications. The excitation function for this reaction is about from 40 to 60 MeV and the cross section for /sup 211/Rn production reaches 650 mb at 53 MeV producing a saturation yield of 5.5 ..mu..Ci/nA.

  16. A priori Enclosures for ODEs: An Alternative to Fixed Point Iterations

    E-Print Network [OSTI]

    of Recurrence Relation I. Required: i mi i + 2, Bi 0 so that |bij| Bi P(j - mi, mi)rj for all j > mi. II n-1 i=0 mi j=0 rn-i+j P ( - j, i) |bij| P (, n) + B-1 rn+m-1 P ( - m-1, m-1 + n) +n-1 max =0 |a r | + n-1 i=0 Bi rn+mi-i P (, n) (-1)i+1 i! P (mi - 2 - i, i + 1) P ( - mi + 1 + i, mi - 1 - i) + i-1 =0

  17. Design and analysis of iteratively decodable codes for ISI channels

    E-Print Network [OSTI]

    Doan, Dung Ngoc

    2005-11-01T23:59:59.000Z

    discrete-time ISI channel, denoted by yn, can be expressed as yn = Lsummationdisplay ?=0 f? ?xn?? +zn = rn +zn, 0 ?nrn is the noiseless channel output, fL0 = (f0,f1,...,f... the noiseless channel output energy 1N summationtextN?1n=0 |rn|2 often results in higher entropy h(YN?10 ), and consequently higher mutual information. This input sequence can be found by using an algorithm which is similar to the Viterbi algorithm to find...

  18. MARMOT Enhanced

    Broader source: Energy.gov [DOE]

    To develop mechanistic models for fuel thermal conductivity, the Fuel team used supercells up to 55 nm long to determine the thermal conductivity of UO2 with Xe incorporated.

  19. E-Print Network 3.0 - au film system Sample Search Results

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

    with a Dewetting Solid Film J.S. Palmer, P. Swaminathan, and J.H. Weaver Summary: and surface tension causes hole spreading and film breakup. For Au on Xe we show that, as for...

  20. E-Print Network 3.0 - au thin films Sample Search Results

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

    nanoparticle assembly during dewetting and sublimation of a solid thin film. Metal... and surface tension causes hole spreading and film breakup. For Au on Xe we show that, as for...

  1. Optical Spectroscopy: Condensed Matter and Magnetic Science,...

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

    633nm, 785nm, 1064nm, visible argon-ion lines, various NIR diode lines Xe lamp and tungsten blackbody lamp Acton 300i, 500i spectrometers Princeton Instruments backthinned...

  2. Discrimination of nuclear explosions against civilian sources based on atmospheric xenon isotopic activity ratios

    SciTech Connect (OSTI)

    Kalinowski, Martin B.; Axelssson, A.; Bean, Marc; Blanchard, X.; Bowyer, Ted W.; Brachet, G.; McIntyre, Justin I.; Peters, Jana; Pistner, Christoph; Raith, Maria; Ringbom, Anders; Saey, P. R.; Schlosser, C.; Stocki, Trevor J.; Taffary, T.; Ungar, R. Kurt

    2010-05-01T23:59:59.000Z

    A global monitoring system for atmospheric xenon radioactivity is being established as part of the International Monitoring System that will be used to verify compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT) once the treaty has entered into force. This paper studies isotopic activity ratios to support interpretation of observed atmospheric concentrations of 135Xe, 133mXe, 133Xe and 131mXe. The goal is to distinguish nuclear explosion sources from civilian releases. Simulations of nuclear explosions, empirical data for both test and reactor releases as well as observations by measurement stations of the International Noble Gas Experiment (INGE) are used to provide a proof of concept for the isotopic ratio based method for source discrimination.

  3. Team Flag Football Golf Indoor Soccer Bowling Dodgeball FALL TOTAL Floor Hockey Basketball Outdoor Soccer Softball Kickball Spring Total Year End Total The Hot Mines Chicks 20 5 10 20 30 85 30 15 25 10 10 90 175

    E-Print Network [OSTI]

    Redemption 2 10 10 0 10 umadbro? 10 10 0 10 Fish Tank 10 10 0 10 HIMYM 5 5 10 0 10 Sofa Kings XE 5 5 5 5 10

  4. 1349.ps

    E-Print Network [OSTI]

    2006-03-14T23:59:59.000Z

    Mar 14, 2006 ... is based on the well-known fact that k + |F| = n for every forest F of G ... If we replace the integrity constraints xe ? {0,1} by the trivial con-.

  5. DOI: 10.1002/ijch.201100129 GasSurface Interactions on Quasicrystals

    E-Print Network [OSTI]

    Curtarolo, Stefano

    DOI: 10.1002/ijch.201100129 Gas­Surface Interactions on Quasicrystals Stefano Curtarolo,[a] Wahyu-energy electron dif- fraction (LEED) and grand canonical Monte Carlo (GCMC) was performed for Xe adsorption

  6. Secondary Organic Aerosol Formation From Aromatic Hydrocarbon

    E-Print Network [OSTI]

    Tang, Ping

    2013-01-01T23:59:59.000Z

    Edney E.O. Izumi K. Sato K. 244 cm fluorescent bulbs 244cm fluorescent bulbs 1.6 kW Xe lamps 19 kW xenon arc lamps

  7. A SUPERCONDUCTING-SOLENOID ISOTOPE SPECTROMETER

    E-Print Network [OSTI]

    O'Donnell, Tom

    A SUPERCONDUCTING-SOLENOID ISOTOPE SPECTROMETER FOR PRODUCTION OF NEUTRON-RICH NUCLEI ( 136 Xe Superconducting Cyclotron Laboratory's weekly \\Green Sheet," 30 July 1999 #12; c Thomas W. O'Donnell 2000 All

  8. Probing Porosity and Pore Interconnectivity in Crystalline Mesoporous...

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

    Porosity and Pore Interconnectivity in Crystalline Mesoporous TiO2 Using Hyperpolarized Xe-129 NMR. Probing Porosity and Pore Interconnectivity in Crystalline Mesoporous TiO2 Using...

  9. Acceleration

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

    on the Cray XE6 platform Kirsten M. Fagnan, Michael Lijewski, George Pau, Nicholas J. Wright Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley, CA 94720 May 18, 2011...

  10. SUPPORTING INFORMATION Multicolored vertical silicon nanowires

    E-Print Network [OSTI]

    . The nanowires have radii of about 50 nm and are 1 µm long. Light from a Xe arc lamp was focused into an optical on the single crystalline silicon wafer. Inductively coupled plasma- reactive ion etch (STS) was used

  11. SUPPORTING INFORMATION Chromatic Plasmonic Polarizers for Active Visible Color

    E-Print Network [OSTI]

    that was used to image the transmission through the CPP samples. Light from a Xe arc lamp was focused glass slides were cleaned by solvent and oxygen plasma and covered with poly(methyl methacylate

  12. Ab initio study of MXe{sub n}{sup +} (M=Cu, Ag, and Au; n=1,2)

    SciTech Connect (OSTI)

    Li Xinying; Cao Xue [School of Physics and Electronics, Henan University, Kaifeng 475004 (China)

    2008-02-15T23:59:59.000Z

    The equilibrium geometries, vibrational frequencies, dissociation energies, and populations of the title species were studied at Hartree-Fock (HF), second-order Moeller-Plesset (MP2), and coupled-cluster singles-doubles (triples) [CCSD(T)] levels. The electron correlation effects and relativistic effects on the geometry and stability were investigated at the CCSD(T) level. Both effects stabilize title species. The populations analyses show that M-Xe bonding is dominated by electrostatic interactions and the best theoretical estimate of the dissociation energies are 1.104 and 2.260 eV for AuXe{sup +} and AuXe{sub 2}{sup +}, respectively. The Cu and Ag are weakly bonded to Xe compared to Au.

  13. ECOLE PRATIQUE DES HAUTES ETUDES Mention Histoire, textes et documents

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Etude diachronique du système verbal persan (Xe -XVIe siècles) : d'un équilibre à l'autre ? Agnès changements morphologiques et syntaxiques du système verbal persan entre les Xe et XVIe siècles. Dix textes en prose représentatifs (régions et dialectes, judéo-persan compris) ont pu faire apparaître les évolutions

  14. SPECTRAL ANALYSIS OF RADIOXENON

    SciTech Connect (OSTI)

    Cooper, Matthew W.; Bowyer, Ted W.; Hayes, James C.; Heimbigner, Tom R.; Hubbard, Charles W.; McIntyre, Justin I.; Schrom, Brian T.

    2008-09-23T23:59:59.000Z

    Monitoring changes in atmospheric radioxenon concentrations is a major tool in the detection of an underground nuclear explosion. Ground based systems like the Automated Radioxenon Sampler /Analyzer (ARSA), the Swedish Unattended Noble gas Analyzer (SAUNA) and the Automatic portable radiometer of isotopes Xe (ARIX), can collect and detect several radioxenon isotopes by processing and transferring samples into a high efficiency beta-gamma coincidence detector. The high efficiency beta-gamma coincidence detector makes these systems highly sensitive to the radioxenon isotopes 133Xe, 131mXe, 133mXe and 135Xe. The standard analysis uses regions of interest (ROI) to determine the amount of a particular radioxenon isotope present. The ROI method relies on the peaks of interest falling within energy limits of the ROI. Some potential problems inherent in this method are the reliance on stable detector gains and a fixed resolution for each energy peak. In addition, when a high activity sample is measured there will be more interference among the ROI, in particular within the 133Xe, 133mXe, and 131mXe regions. A solution to some of these problems can be obtained through spectral fitting of the data. Spectral fitting is simply the fitting of the peaks using known functions to determine the number and relative peak positions and widths. By knowing this information it is possible to determine which isotopes are present. Area under each peak can then be used to determine an overall concentration for each isotope. Using the areas of the peaks several key detector characteristics can be determined: efficiency, energy calibration, energy resolution and ratios between interfering isotopes (Radon daughters).

  15. States and Their Transitions The tuple

    E-Print Network [OSTI]

    Lyuu, Yuh-Dauh

    When the average is a moving average, a different technique is needed (Kao (R89723057) and Lyuu (2003)). c 2014 analytical solutions are the Black-Scholes formulas: C = Se-qa N(x) - Xe-r N(x - a ), (33) P = Xe-r N(-x + a ) - Se-qa N(-x), (33 ) ­ With the volatility set to a / 3 . ­ With the dividend yield set to qa (r + q

  16. An economic analysis of investment in agricultural land

    E-Print Network [OSTI]

    Cherry, Russell Cather

    1966-01-01T23:59:59.000Z

    'eXaX~~, imp"-' feet-bawRedge ea4 Xaeb c4 Xeoaee ~ em be ~ceXXy ~t~ Xe. eeX~~ eet' orat?e ~. @d$~'~ ieoeeeetp. -Tbe ~i ~ sif ~-ha the' ~4mB 'ej. ee -hei' f@4g~ X46 epee kw X%2 to 286 @otee Xe Xpap, e XN. SK ~e. Net eeet ~epee em ee ~)eetec beers' woe34...

  17. arXiv:1205.5608v1[hep-ex]25May2012 Search for Neutrinoless Double-Beta Decay in 136

    E-Print Network [OSTI]

    Gratta, Giorgio

    arXiv:1205.5608v1[hep-ex]25May2012 Search for Neutrinoless Double-Beta Decay in 136 Xe with EXO-200: May 28, 2012) We report on a search for neutrinoless double-beta decay of 136 Xe with EXO-200 in the ±1 region of interest. This sets a lower limit on the half-life of the neutrinoless double-beta decay

  18. Isospin Effects of the Critical Behavior in the Lattice Gas Model

    E-Print Network [OSTI]

    Yu-Gang Ma; Qian-Min Su; Wen-Qing Shen; Jian-Song Wang; Xiang-Zhou Cai; De-Qing Fang

    1999-04-21T23:59:59.000Z

    Isospin effects of the critical phenomena were studied via Xe isotopes in the frame of lattice gas model. All the critical temperatures for four Xe isotopes are close to 5.5 MeV at the same freeze-out density of about 0.39 $\\rho_0$. The critical values of power law parameter of mass distribution, mean multiplicity of intermediate mass fragments (IMF), information entropy and Campi's second moment show minor dependence on the isospin at the critical point.

  19. Volume 158,number 3,4 CHEMICAL PHYSICS LETTERS YJune 1989 ION MIGRATION FOLLOWING CHARGE TRANSFER REACTIONS IN RARE-GAS SOLIDS

    E-Print Network [OSTI]

    Apkarian, V. Ara

    that photoinduced charge transfer processes in rare-gas solids, such as Xe+C& +2hv+ Xe+Cl- +Cl result in highly of photochemical processes in rare-gas solids is motivated in part by the fact that these sys- tems act as solvents crystals or rare-gas solids [ 2 1.In most studied processes, the rare-gas solid seems in- deed to act

  20. Diesel Engine CO2 and SOx Emission Compliance Strategy for the...

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

    CO2 and SOx Emission Compliance Strategy for the Royal Navy (RN) and Royal Fleet Auxiliary (RFA) Flotillas Diesel Engine CO2 and SOx Emission Compliance Strategy for the Royal Navy...

  1. E-Print Network 3.0 - acute subtentorial hematoma Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: patients with...

  2. E-Print Network 3.0 - assess safety efficacy Sample Search Results

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: College of Medicine,...

  3. E-Print Network 3.0 - anxiety disorder patients Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: brain stimulation...

  4. E-Print Network 3.0 - adverse pulmonary events Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: adverse events...

  5. E-Print Network 3.0 - accompanying isodense subdural Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: patients with...

  6. E-Print Network 3.0 - assessing adverse events Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: adverse events...

  7. E-Print Network 3.0 - acromegalic patients treated Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: : All patients...

  8. E-Print Network 3.0 - adrenalectomy impairs urinary Sample Search...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: Disorders Clinic...

  9. E-Print Network 3.0 - atypical intraventricular meningioma Sample...

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: patients with...

  10. E-Print Network 3.0 - adverse events aes Sample Search Results

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: adverse events...

  11. E-Print Network 3.0 - als patient population Sample Search Results

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

    and Long-Term Safety of Deep Brain Stimulation In the Treatment of Movement Disorders C. Kenney, MD, R. Simpson, MD, PhD, C. Hunter, RN, W. Ondo, MD, Summary: brain stimulation...

  12. Energy Efficiency Improvement and Cost Saving Opportunities for the Dairy Processing Industry

    E-Print Network [OSTI]

    Brush, Adrian

    2012-01-01T23:59:59.000Z

    measures for Clean-In-Place (CIP). A. Brush. Elliot, R.N. (95 iii 15.1 Clean In Place (CIP)intensive Clean-In- Place (CIP) systems, as well as general

  13. Updated as of 8.11.2014 for AY 2014-2015 Accelerated Bachelor of Science with a Major in Nursing

    E-Print Network [OSTI]

    Chapman, Michael S.

    the Portland and Ashland campuses. This program will prepare the graduate for R.N. licensure and will also give in the summer term and is offered full time at the OHSU Marquam Hill campus in Portland or Ashland only

  14. Directed modified Cholesky factorizations and convex quadratic ...

    E-Print Network [OSTI]

    2014-07-03T23:59:59.000Z

    Jul 3, 2014 ... ANN if N = ?,. Ak ? Rn?k+1 otherwise. Let j denote the index of the pivot element in Ak; exchange row j with the first row and column j with the ...

  15. OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    l l,eve l Ventil.u:ion ( el OTEC H . . ard Level (f) Type ofW.E. and R.N. Manley, 1979. OTEC Commercialization Analysis.Assessment for Operational OTEC Platforms A Progress Report.

  16. Pattern Recognition, Vol. 26, No. 9, pp. 1363 1372, 1993 Printed in Great Britain

    E-Print Network [OSTI]

    Kimmel, Ron

    ~ fi where R = R~ {zc, - ~}, and the subspace of umbra sets in RN+t An umbra set S is a set for which~ SJgnaI Umbra Erosion Opening Closing Fig. 1. Example ofthe four basicoperations ofmathematical

  17. Consistency of robust portfolio estimators

    E-Print Network [OSTI]

    2006-10-19T23:59:59.000Z

    Oct 6, 2006 ... The effect was made visible by examining stability of portfolio .... where W(Z, q) denotes the Wishart distribution with scale matrix Z ? Rn×n.

  18. Report to the Faculty Senate from the ad hoc Faculty Senate Exigency Plan Study Committee (Torbjrn Wandel, John Bohac, Sal Costa, Betsy Delmonico, Peter Rolnick [chair])

    E-Print Network [OSTI]

    Gering, Jon C.

    Report to the Faculty Senate from the ad hoc Faculty Senate Exigency Plan Study Committee (Torbjörn Wandel, John Bohac, Sal Costa, Betsy Delmonico, Peter Rolnick [chair]) March 16, 2011 The ad hoc Faculty

  19. Syllabus

    E-Print Network [OSTI]

    Assignment 9, To be handed in Friday, March 23. pages 148-150, exercises 48, 49, 50, 52, 58. On exercise 49, the definition of R(N) is the number of pairs (m,n).

  20. E-Print Network 3.0 - aare pain juubilar Sample Search Results

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

    Texas A&M University Collection: Biology and Medicine 55 Linda Dedo, RN, 4 West Manager, posted a bulletin board in the hallway that is geared toward patients and family...

  1. Discrete optimization methods to fit piecewise-affine models to data ...

    E-Print Network [OSTI]

    2015-03-09T23:59:59.000Z

    Fitting a set of data points in Rn with a combination of low complexity mod- ... general problem of fitting a piecewise affine model to the data points {(a1,b1),..., ...

  2. A note on polynomial solvability of the CDT problem 1 Introduction

    E-Print Network [OSTI]

    2015-02-23T23:59:59.000Z

    The classical trust-region subproblem can be stated as min{f(x) : x ? 1, x ? Rn} ..... [12] M. R. CELIS, J. E. DENNIS AND R. A. TAPIA, A trust region strategy for ...

  3. Coordinate Descent Algorithms - Optimization Online

    E-Print Network [OSTI]

    2015-02-13T23:59:59.000Z

    seek matrices U ? Rn×r and V ? Rm×r (with r small) such that UV T is con- ...... ful degradation of the convergence bounds while still obtaining fairly efficient.

  4. The homogeneous spectrum of a graded commutative ring

    E-Print Network [OSTI]

    1910-10-83T23:59:59.000Z

    Rn is a Z-graded integral domain, if t is a nonzero element of R1, and if H is the multiplicative set of .... ian, then Spec R is Noetherian. Without the assumption in

  5. Characterization of past hydrothermal fluids in the Humboldt...

    Open Energy Info (EERE)

    and identification and geochemical characterization of major fluid events. Authors Johnson, J.L., Tempel, R.N., and Shevenell and L.A. Organization University of Nevada Reno...

  6. E-Print Network 3.0 - atheriniformes atherinopsidae na Sample...

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

    (RS; bp), number of alleles (NA), average observed heterozygosity (HO), and average FIS and FST... This study Primer Sequence (5-3; Feldheim et al. in prep.) TA (C) RN RS...

  7. Meyers: Encyclopedia of Complexity and Systems Science --Entry 62 --2008/9/18 --17:03 --page 1 --le-tex The Multivariate Splines and Their Applications 1

    E-Print Network [OSTI]

    Lai, Ming-Jun

    viscous incompressible flow equations and has di- 77 rect application in the design of hydraulic turbines of a polygonal domain in 57 Rn for n 2. They are very efficient for evaluation and 58 manipulation on computer

  8. How muchcanschoolssave w i t h a c o s t -e f f e c t i v e e n e r g y p r o j e c t

    E-Print Network [OSTI]

    How muchcanschoolssave w i t h a c o s t - e f f e c t i v e e n e r g y p r o j e c t C a l i fC a l i fC a l i fC a l i fC a l i f o ro ro ro ro r n i a E n e rn i a E n e rn i a E n e rn i a E n e rn i a E n e r ggggg y C o m m i s s i o ny C o m m i s s i o ny C o m m i s s i o ny C o m m i

  9. The effect of continuous, broad-band random noise, both alone and in combination with a food odor on the lemon shark, Negaprion brevirostris

    E-Print Network [OSTI]

    Jones, Keith Anthony

    2012-06-07T23:59:59.000Z

    parentheses) of that period in hours. 1878 (11) NFR FU SS8 (3) N NF FU 724 (12) NFs NF 490 (12) NF NF Fi C-1 FO C-2 RN8 FO 689 (30) NFg NF 2368 (28) NFq FU 2393 (12) N NF2 FU C-3 NF I RN NF, C-4 FIG. 6. Experiment ll2. Circular..." of the hourly response (see text). + = significance at n * = significance at o ; f = significance at a 400 1&IFOII CR QQN&FOHI ? C4~~RN ? I~C2? W 250 9 200 |50 Z 50 40 50 50 0 80 90 100 1 0 HOURS 37 exception (exp. 112, RN&FO). It should be noted...

  10. The design of efficient input circuits for class C amplifiers

    E-Print Network [OSTI]

    Fristoe, Harold T.

    2013-10-04T23:59:59.000Z

    ?XXXXXXXXXXXXXXXXXXXXXXXXXXX?? ??X ??o?? hen?in? c?o?ef? tiinf?s?sfg o? g?s rn?eo jis??sf?? linfd?eggsi X ? ? ? ? ? ? ? ? X X X X X X X ?? m?cl aj lt?m?c lt?m? ?n?s ?? uni?ofe? tfn??ded o? ?nien? linfd?oi?si XXXXXXXXXXXXXXXXXXXXXXXX ?? ??X ?snd?is? nf? ?n????ngs? a...?geof ???? ??????? l?s ?fdgeg?gs o? rn?eo ?f?efssidX jX ?X lsi?nf? ?rn?eo sf?efssief????? ???in? ue?? ?oo? ?o??nf?? ????X ??X mX ??siegg? ??a?ge??? o?singef? ?of?egeofd ?oi ??ndd ? n???e?esid?? ?io?ss?ef?d o? ?fdgeg?gs o? rn?eo ?f?efssid ??? ??? ??????X ??jX ?X...

  11. Factors Associated With Newly Graduated Nurses' Intent to Leave Current Position in U.S. Acute Care Hospitals: A Descriptive Research Study Using Secondary Data Analysis

    E-Print Network [OSTI]

    Meyer, Mary N.

    2014-08-31T23:59:59.000Z

    Indicators TM (NDNQI ®) RN Survey with Job Satisfaction Scales and NDNQI patient census and staffing data (N = 8343). The data were analyzed using three-level hierarchical linear modeling to identify factors that were significantly correlated with ITLcp...

  12. Habitat types of the Eastern Cross Timbers of Texas

    E-Print Network [OSTI]

    Marcy, Larry Eugene

    2012-06-07T23:59:59.000Z

    wells of north-central Texas. When timber is cut from any portion of the Cross Timbers, and porous sandy soil exposed to the plow, rapid erosion begins, the area is destroyed mOIN 0 I O N Ill& Ifiro Chhl Oimoec co rn rn hl w rnLA cr Io o N mme... mmril chio OCO %CO CF ril IA m hl IO hl chl m wm mNNWNNLA m4 o' N o 4' c ch c&e mrn mLALo Io c- CD o c 0 wco hl hl N 0 4 0 0 I I 0 CO cFIIA LAO chN I COP LAIC O m LA CF Lfi ril rn co CFI O chio m I NCOOCO N N m IA IO LA CFI N CI IO I...

  13. Application of operator splitting to the Maxwell equations including a source term 1

    E-Print Network [OSTI]

    Botchev, Mike

    (t) + f(t), A RnÃ?n split into two subproblems w 1(t) = A1w1(t) + f1(t) and w 2(t) = A2w2(t)+f2(t), A = A1

  14. Microsoft Word - PC-000529_0_HFRB1FinalSummaryRpt_FinalDraft...

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

    QC quality control RB release rate-to-birth rate ratio RN radionuclide SPN self-powered neutron detector TC thermocouple TRISO TRi-ISOtropic coated-fuel particle design with...

  15. Inverse Problems in Transport Theory

    E-Print Network [OSTI]

    This paper is a review of the recent progress in the study of inverse problems for the transport equation in Rn, n ? 2 by the author and M. Choulli [CSt1], [CSt2], ...

  16. Oxygen transfer in the implant environment

    E-Print Network [OSTI]

    Goor, Jared Braden

    2007-01-01T23:59:59.000Z

    Temperature dependence of oxygen diffusion and consumptionRN. Influence of temperature on oxygen diffusion in hamster341-347, 1988. Cox ME. Oxygen Diffusion in Poly(dimethyl

  17. E-Print Network 3.0 - advisory center narac Sample Search Results

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

    in the NARAC cohort (P 0... , MD, PhD: Leiden University Medical Center, Leiden, The Netherlands; 2 Marlena Kern, MS, RN, MBA, Lina Source: Raychaudhuri, Soumya - Division of...

  18. THE SCALING OF FLUVIAL LANDSCAPES Bjrn Birnir # Terence R. Smith + \\Lambda George E. Merchant +

    E-Print Network [OSTI]

    Bigelow, Stephen

    THE SCALING OF FLUVIAL LANDSCAPES Björn Birnir # Terence R. Smith + \\Lambda George E. Merchant roughness coefficient of 0:75 and is analogous to an interface driven through random media with quenched

  19. THE SCALING OF FLUVIAL LANDSCAPES Bjrn Birnir Terence R. Smith

    E-Print Network [OSTI]

    Bigelow, Stephen

    THE SCALING OF FLUVIAL LANDSCAPES Björn Birnir Terence R. Smith George E. Merchant Department¢ 75 and is analogous to an interface driven through random media with quenched noise. The values

  20. Algorithmic computation of de Rham cohomology of complements of ...

    E-Print Network [OSTI]

    Our main tool is a generalization of the restriction process from ..... Input: f 2 R n; i 2 N. .... Output: The Cech complex C (Rn; f 0;::: ;fr ) in terms of generators.

  1. SPICE: Scalable P2P implicit group messaging Daniel Cutting a,*, Aaron Quigley b

    E-Print Network [OSTI]

    Landfeldt, Bjorn

    SPICE: Scalable P2P implicit group messaging Daniel Cutting a,*, Aaron Quigley b , Bjo¨rn Landfeldt problem of such systems. This paper broadens our earlier work [D. Cutting, B. Landfeldt, A. Quigley

  2. Education, Job Requirements, and Commuting: An Analysis of Network Flows

    E-Print Network [OSTI]

    Harsman, Bjorn; Quigley, John M.

    1998-01-01T23:59:59.000Z

    potential. BjSmH~rsman John M. Quigley and Notes I. . ItH~rsman, Bj6rn and John M. Quigley, "Worker and Workplacell)-T,, Bj6mH~rsman John M. Quigley and Again, assumingthat,

  3. Inequalities of Hardy–Sobolev Type in Carnot–Carathéodory Spaces

    E-Print Network [OSTI]

    Donatel

    2010-11-04T23:59:59.000Z

    condenser has the following two-sided estimate which will be used extensively in the paper. Given a compact set K ? Rn with local parameters C0 and R0,.

  4. Thesis - Department of Mathematics, Purdue University

    E-Print Network [OSTI]

    i;j (Rn=I). Some of these algorithms have been implemented in the program- ...... PA=IA as QA=ID;F and then with that presentation of PA=IA rewrite PB =IB.

  5. Passivhus Norden 2008 1st Nordic passive house conference

    E-Print Network [OSTI]

    Hansen, René Rydhof

    -Efficiency Heat Pump Water Heater System for Apartment Buildings of Passive House Standard...........57 SESSION 3:00 Jørn Stene CO2 Heat Pump System for Space Heating and Hot Water Heating in Low-Energy Houses

  6. KTH Department of Energy Technology Seminar on Tuesday May 22, 2012 at 11:15 * Brinellvgen 68, Stockholm, Sweden

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    KTH Department of Energy Technology Seminar on Tuesday May 22, 2012 at 11:15 * Brinellvägen 68, Stockholm, Sweden Contact Person: Björn Palm, Professor, Head of Department Department of Energy Technology

  7. Geometrical transformations in higher dimensional Euclidean spaces

    E-Print Network [OSTI]

    Sanyal, Amit Kumar

    2001-01-01T23:59:59.000Z

    Orientations and rotations in n-dimensional real Euclidean spaces (R[n]) are represented by proper orthogonal, or skew-symmetric matrices. A mathematical formulation that leads to these representations is presented. Orientations and rotations...

  8. Coercive polynomials and their Newton polytopes

    E-Print Network [OSTI]

    2014-08-04T23:59:59.000Z

    Aug 1, 2014 ... Page 1 ... given polynomial f is coercive on Rn. This is the topic of the present article. For f ? R[x] = R[x1,...,xn], the ring of real polynomials in n ...

  9. A level-set method for computing the eigenvalues of elliptic operators defined on compact hypersurfaces

    E-Print Network [OSTI]

    Soatto, Stefano

    on a compact hypersurface Rn can be found by solving a related elliptic eigen- value problem Lu = u the semi- classical analysis of the Schr¨odinger operator, that the eigenvalues of an elliptic operator

  10. Nuclear Data Sheets for A=228

    SciTech Connect (OSTI)

    Abusaleem, Khalifeh

    2014-02-01T23:59:59.000Z

    The evaluated spectroscopic data are presented for known nuclides of mass 228 (Ac, At, Fr, Np, Pa, Pu, Ra, Rn, Th, and U). Excited states in {sup 228}At, {sup 228}Rn, {sup 228}Fr, {sup 228}Np, and {sup 228}Pu have not been identified as yet. Significant amounts of new data have been added since the last evaluation of A=228 nuclides. This work supersedes earlier full evaluations of A=228 published by 1997Ar08.

  11. Nordisk kernesikkerhedsforskning Norrnar kjarnryggisrannsknir

    E-Print Network [OSTI]

    and Laura Salo Helsingfors universitet, Finland Björn Wahlström VTT, Finland July 2008 #12;Abstract, Finland Laura Salo, Inst för allmän språkvetenskap, PB 9, FI-00014 Helsingfors universitet, Finland Björn Wahlström, VTT, P.O. Box 1000, FI-02044 VTT, Finland 1. Projektets målsättning, partners och finansiering

  12. Ogmios 18

    E-Print Network [OSTI]

    Ostler, Nicholas D M

    2002-01-01T23:59:59.000Z

    ~ ~ w e a l t h University OGMIOS p ) . g BAr , : ler@ i on. . : :/ . ios.org s m p. 1. d ngere lang l s3 f .. ' .. ........ . . . . . . .. . .. rn rn " . ..... .. . .. . tt... . . ...... . . . ................. ture . ... . ....... s .... .... , , Linguistics: i s: I l h y p , U v. Conf. C t B zeman l 1 .. .. .. ........ 1 V ei'! 3 .. ... 1 r , 1-4 .. ..... .. 1 10. Book Reviews .. .. . . .... .. 22 Book...

  13. Construction and properties of the modules for patching (Modularity 5.20.10)

    E-Print Network [OSTI]

    Conrad, Brian

    1, 2010 1 Introduction/Motivation Recall that our ultimate goal is to prove a modularity lifting will describe later. We'll construct maps Rn Tn lifting R0 T0 , and certain Rn -modules Mn . By a pigeonhole by the Tv for v (U). (It comes from the double coset Uv 1 0 0 v Uv.) Now let's fix the "ground level" U

  14. Introducci'on a la Mec'anica Cl'asica FAMAT, agst-dic 2000

    E-Print Network [OSTI]

    Bor, Gil

    el martes, 19 de sept.) 1.Demostrar la Ley de Conservaci'on de Energ'ia para las soluci'ones de la ecua* *ci'on de Newton m"x= -rV (x), en donde x(t) 2 Rn, V : Rn ! R y la energ'ia est'a dada. Demuestra que la superficie de nivel para un nivel de energ'ia E0 >* * 0 es una esfera en R2n, y que las

  15. Y.Takeuchi (Y.Takeuchi (KamiokaKamioka Observatory, ICRR)Observatory, ICRR) Radon workshop @ NEUTRINO 2000

    E-Print Network [OSTI]

    Takeuchi, Yasuo

    for water950L for water ·· RnRn--lessless--airair supply systemsupply system ·· Water purification systemWater (stainless steel) water (+50mmAq) 60cm SK dome air #12;Water purification systemWater purification system purification system ·· Membrane degassing module testMembrane degassing module test ·· SummarySummary #12

  16. c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee BASICS OF OPTIMIZATION

    E-Print Network [OSTI]

    Hong, Deog Ki

    c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee Chapter 3 BASICS OF OPTIMIZATION 3 that the decision variables must satisfy minx2Rn fx hx = 0 gx 0 52 #12;c 1997 by Jay H. Lee, Jin Hoon Choi + Buk 53 #12;c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee Terminologies Let = fx 2 Rn : hx

  17. Design of a PSi header processor for the X.25 packet level protocol

    E-Print Network [OSTI]

    Yu, Tsai-Fa

    2012-06-07T23:59:59.000Z

    layer connection processor number (LN-CP?), the length of remote Network layer address (LOA), and the remote Network layer address associated with the remote service access point and the local service access point (RN-address/N-RSAP/N-LSAP). Inside... Network layer connection processor number (LN-CP?), the length of remote Network 21 layer address (LOA), the remote Network layer address associated with the remote service access point and the local service access point (RN-address/N-RSAP/N...

  18. NOVIT. BOT. UNIV. CAROl Praha, 13/1999: 7-11

    E-Print Network [OSTI]

    ). A drop of the sample was dried on a formvar coated copper grid. Grids were shadowcast with chromium of a stream running into the White Elbe. Samples were taken from a small pool of an area of about 6 rn2and Panèava river that runs into the Elbe. The sample was taken from a small pool of an area about 2 rn2

  19. Screening of the Reissner-Nordström charge by a thin-shell of dust matter

    E-Print Network [OSTI]

    S. Habib Mazharimousavi; M. Halilsoy

    2015-03-17T23:59:59.000Z

    A concentric thin-shell encircling a Reissner-Nordstr\\"om (RN) black hole screens the internal charge completely to match with an external Schwarzschild (S) black hole. The negative mass thin-shell is shown to be stable against radial perturbations. It is shown further that by reversing the roles of inside (RN) and outside (S) geometries the mass of the appropriate shell becomes positive.

  20. Screening of the Reissner-Nordstr\\"om charge by a thin-shell of dust matter

    E-Print Network [OSTI]

    Mazharimousavi, S Habib

    2015-01-01T23:59:59.000Z

    A concentric thin-shell encircling a Reissner-Nordstr\\"om (RN) black hole screens the internal charge completely to match with an external Schwarzschild (S) black hole. The negative mass thin-shell is shown to be stable against radial perturbations. It is shown further that by reversing the roles of inside (RN) and outside (S) geometries the mass of the appropriate shell becomes positive.

  1. MA40203 Theory of PDE : Problem sheet 3 Wednesday 26th February

    E-Print Network [OSTI]

    Di Francesco, Marco

    that the surface area of the bounding sphere is N/2 (N/2)! NN-1 . 3. The function : RN R is defined by (x) = exp(-1/(1 - r2)) if r := x r 1 . Prove that C(RN ) and supp = ¯B1(0). 4. Let k1(x) = (x in the strip 0 x1 d. Let L be uniformly elliptic, c 0. If Lu = f, then max ¯ |u| max |u| + C max ¯ |f

  2. Field studies of streamflow generation using natural and injected tracers on Bickford and Walker Branch Watersheds

    SciTech Connect (OSTI)

    Genereux, D.; Hemond, H. (Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering); Mulholland, P. (Oak Ridge National Lab., TN (United States))

    1992-05-01T23:59:59.000Z

    Field studies of streamflow generation were undertaken on two forested watersheds, the West Road subcatchment of Bickford Watershed in central Massachusetts and the West Fork of Walker Branch Watershed in eastern Tennessee. A major component of the research was development of a two-stage methodology for the use of naturally-occurring {sup 222}Rn as a tracer. The first of the two stages was solving a mass-balance equation for {sup 222}Rn around a stream reach of interest in order to calculate Rn{sub q}, the {sup 222}Rn content of the lateral inflow to the reach; a conservative tracer (chloride) and a volatile tracer (propane) were injected into the study stream to account for lateral inflow to, and volatilization from, the study reach. The second stage involved quantitative comparison of Rn{sub q} to the measured {sup 222}Rn concentrations of different subsurface waters in order to assess how important these waters were in contributing lateral inflow to the stream reach.

  3. Atomistic Simulations of Mass and Thermal Transport in Oxide Nuclear Fuels

    SciTech Connect (OSTI)

    Andersson, Anders D. [Los Alamos National Laboratory; Uberuaga, Blas P. [Los Alamos National Laboratory; Du, Shiyu [Los Alamos National Laboratory; Liu, Xiang-Yang [Los Alamos National Laboratory; Nerikar, Pankaj [IBM; Stanek, Christopher R. [Los Alamos National Laboratory; Tonks, Michael [Idaho National Laboratory; Millet, Paul [Idaho National Laboratory; Biner, Bulent [Idaho National Laboratory

    2012-06-04T23:59:59.000Z

    In this talk we discuss simulations of the mass and thermal transport in oxide nuclear fuels. Redistribution of fission gases such as Xe is closely coupled to nuclear fuel performance. Most fission gases have low solubility in the fuel matrix, specifically the insolubility is most pronounced for large fission gas atoms such as Xe, and as a result there is a significant driving force for segregation of gas atoms to grain boundaries or dislocations and subsequently for nucleation of gas bubbles at these sinks. The first step of the fission gas redistribution is diffusion of individual gas atoms through the fuel matrix to existing sinks, which is governed by the activation energy for bulk diffusion. Fission gas bubbles are then formed by either separate nucleation events or by filling voids that were nucleated at a prior stage; in both cases their formation and latter growth is coupled to vacancy dynamics and thus linked to the production of vacancies via irradiation or thermal events. In order to better understand bulk Xe behavior (diffusion mechanisms) in UO{sub 2{+-}x} we first calculate the relevant activation energies using density functional theory (DFT) techniques. By analyzing a combination of Xe solution thermodynamics, migration barriers and the interaction of dissolved Xe atoms with U, we demonstrate that Xe diffusion predominantly occurs via a vacancy-mediated mechanism, though other alternatives may exist in high irradiation fields. Since Xe transport is closely related to diffusion of U vacancies, we have also studied the activation energy for this process. In order to explain the low value of 2.4 eV found for U migration from independent damage experiments (not thermal equilibrium) the presence of vacancy clusters must be included in the analysis. Next a continuum transport model for Xe and U is formulated based on the diffusion mechanisms established from DFT. After combining this model with descriptions of the interaction between Xe and grain boundaries derived from separate atomistic calculations, we simulate Xe redistribution for a few simple microstructures using finite element methods (FEM), as implemented in the MOOSE framework from Idaho National Laboratory. Thermal transport together with the power distribution determines the temperature distribution in the fuel rod and it is thus one of the most influential properties on nuclear fuel performance. The fuel thermal conductivity changes as function of time due to microstructure evolution (e.g. fission gas redistribution) and compositional changes. Using molecular dynamics simulations we have studied the impact of different types of grain boundaries and fission gas bubbles on UO{sub 2} thermal conductivity.

  4. The effect of cathode geometry on barium transport in hollow cathode plasmas

    SciTech Connect (OSTI)

    Polk, James E., E-mail: james.e.polk@jpl.nasa.gov; Mikellides, Ioannis G.; Katz, Ira [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109 (United States); Capece, Angela M. [California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125 (United States)

    2014-05-14T23:59:59.000Z

    The effect of barium transport on the operation of dispenser hollow cathodes was investigated in numerical modeling of a cathode with two different orifice sizes. Despite large differences in cathode emitter temperature, emitted electron current density, internal xenon neutral and plasma densities, and size of the plasma-surface interaction region, the barium transport in the two geometries is qualitatively very similar. Barium is produced in the insert and flows to the surface through the porous structure. A buildup of neutral Ba pressure in the plasma over the emitter surface can suppress the reactions supplying the Ba, restricting the net production rate. Neutral Ba flows into the dense Xe plasma and has a high probability of being ionized at the periphery of this zone. The steady state neutral Ba density distribution is determined by a balance between pressure gradient forces and the drag force associated with collisions between neutral Ba and neutral Xe atoms. A small fraction of the neutral Ba is lost upstream. The majority of the neutral Ba is ionized in the high temperature Xe plasma and is pushed back to the emitter surface by the electric field. The steady state Ba{sup +} ion density distribution results from a balance between electrostatic and pressure forces, neutral Xe drag and Xe{sup +} ion drag with the dominant forces dependent on location in the discharge. These results indicate that hollow cathodes are very effective at recycling Ba within the discharge and therefore maintain a high coverage of Ba on the emitter surface, which reduces the work function and sustains high electron emission current densities at moderate temperatures. Barium recycling is more effective in the cathode with the smaller orifice because the Ba is ionized in the dense Xe plasma concentrated just upstream of the orifice and pushed back into the hollow cathode. Despite a lower emitter temperature, the large orifice cathode has a higher Ba loss rate through the orifice because the Xe plasma density peaks further upstream.

  5. XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos

    E-Print Network [OSTI]

    K. Arisaka; H. Wang; P. F. Smith; D. Cline; A. Teymourian; E. Brown; W. Ooi; D. Aharoni; C. W. Lam; K. Lung; S. Davies; M. Price

    2009-01-07T23:59:59.000Z

    A multi-target detection system XAX, comprising concentric 10 ton targets of 136Xe and 129/131Xe, together with a geometrically similar or larger target of liquid Ar, is described. Each is configured as a two-phase scintillation/ionization TPC detector, enhanced by a full 4pi array of ultra-low radioactivity Quartz Photon Intensifying Detectors (QUPIDs) replacing the conventional photomultipliers for detection of scintillation light. It is shown that background levels in XAX can be reduced to the level required for dark matter particle (WIMP) mass measurement at a 10^-10 pb WIMP-nucleon cross section, with single-event sensitivity below 10^-11 pb. The use of multiple target elements allows for confirmation of the A^2 dependence of a coherent cross section, and the different Xe isotopes provide information on the spin-dependence of the dark matter interaction. The event rates observed by Xe and Ar would modulate annually with opposite phases from each other for WIMP mass >~100 GeV/c^2. The large target mass of 136Xe and high degree of background reduction allow neutrinoless double beta decay to be observed with lifetimes of 10^27-10^28 years, corresponding to the Majorana neutrino mass range 0.01-0.1 eV, the most likely range from observed neutrino mass differences. The use of a 136Xe-depleted 129/131Xe target will also allow measurement of the pp solar neutrino spectrum to a precision of 1-2%.

  6. Spontaneous fission modes and lifetimes of super-heavy elements in the nuclear density functional theory

    E-Print Network [OSTI]

    A. Staszczak; A. Baran; W. Nazarewicz

    2012-08-06T23:59:59.000Z

    Lifetimes of super-heavy (SH) nuclei are primarily governed by alpha decay and spontaneous fission (SF). Here we study the competing decay modes of even-even SH isotopes with 108 density functional theory framework capable of describing the competition between nuclear attraction and electrostatic repulsion. The collective mass tensor of the fissioning superfluid nucleus is computed by means of the cranking approximation to the adiabatic time-dependent Hartree-Fock-Bogoliubov approach. Along the path to fission, our calculations allow for the simultaneous breaking of axial and space inversion symmetries; this may result in lowering SF lifetimes by more than seven orders of magnitude in some cases. We predict two competing SF modes: reflection-symmetric and reflection-asymmetric.The shortest-lived SH isotopes decay by SF; they are expected to lie in a narrow corridor formed by $^{280}$Hs, $^{284}$Fl, and $^{284}_{118}$Uuo that separates the regions of SH nuclei synthesized in "cold fusion" and "hot fusion" reactions. The region of long-lived SH nuclei is expected to be centered on $^{294}$Ds with a total half-life of ?1.5 days.

  7. Nuclear Magnetic Resonance Studies of Resorcinol-Formaldehyde Aerogels

    SciTech Connect (OSTI)

    Moudrakovski, Igor L.; Ratcliffe, C I.; Ripmeester, J A.; Wang, Li Q.; Exarhos, Gregory J.; Baumann, T; Satcher, J H.

    2005-06-09T23:59:59.000Z

    In this article we report a detailed study of resorcinol-formaldehyde (RF) aerogels prepared under different processing conditions, [resorcinol]/[catalyst] (R/C) ratios in the starting sol-gel solutions, using continuous flow hyperpolarized 129Xe NMR in combination with solid-state 13C and two-dimensional wide-line separation (2D-WISE) NMR techniques. The degree of polymerization and the mobility of the cross-linking functional groups in RF aerogels are examined and correlated with the R/C ratios. The origin of different adsorption regions is evaluated using both co-adsorption of chloroform and 2D EXSY 129Xe NMR. A hierarchical set of Xe exchange processes in RF aerogels is found using 2D EXSY 129Xe NMR. The exchange of Xe gas follows the sequence (from fastest to slowest): mesopores with free gas, gas in meso- and micro-pores, free gas with micropores, and, finally, among micropore sites. The volume-to-surface-area (Vg/S) ratios for aerogels are measured for the first time without the use of geometric models. The Vg/S parameter, which is related both to the geometry and the interconnectivity of the pore space, has been found to correlate strongly with the R/C ratio and exhibits an unusually large span: an increase in the R/C ratio from 50 to 500 results in about a 5-fold rise in Vg/S.

  8. In-situ gamma spectrometry measurements of time-dependent Xenon-135 inventory in the TRIGA Mark II reactor Vienna

    E-Print Network [OSTI]

    Julia Riede; Helmuth Boeck

    2013-07-29T23:59:59.000Z

    In this work, it has been shown that the time dependent Xe-135 inventory in the TRIGA Mark II reactor in Vienna, Austria can be measured via gamma spectrometry even in the presence of strong background radiation. It is focussing on the measurement of (but not limited to) the nuclide Xe-135. The time dependent Xe-135 inventory of the TRIGA Mark II reactor Vienna has been measured using a temporary beam line between one fuel element of the core placed onto the thermal column after shutdown and a detector system located just above the water surface of the reactor tank. For the duration of one week, multiple gamma ray spectra were recorded automatically, starting each afternoon after reactor shutdown until the next morning. One measurement series has been recorded over the weekend. The Xe-135 peaks were extracted from a total of 1227 recorded spectra using an automated peak search algorithm and analyzed for their time-dependent properties. Although the background gamma radiation present in the core after shutdown was large especially in the lower energy range, the Xe-135 peak located at 249.8 keV could be extracted from the most spectra where present and could be compared to theoretical calculations.

  9. ENVIRONMENTAL MEASUREMENTS OF RADIOXENON

    SciTech Connect (OSTI)

    Bowyer, Ted W.; Hayes, James C.; McIntyre, Justin I.

    2007-12-30T23:59:59.000Z

    Radioactive xenon (radioxenon) is produced by the fissioning of nuclear material, either via neutron-induced or spontaneous fission, and also via neutron activation of xenon gas and other reactions. The most abundant xenon isotopes in the atmosphere are 131mXe, 133Xe and 135Xe, having been measured at several locations in the northern hemisphere associated with reactor operation, medical isotope production, and more recently associated with the spontaneous fission of 240Pu from the legacy materials at plutonium production facility in Hanford, Washington. Radioactive xenon measurement at levels near the average atmospheric level (1-10 mBq/m3) is a “specialty” measurement, requiring specialized collection, separation, and nuclear measurement techniques. This paper describes the political and scientific drivers for making radioxenon measurements, background sources, and current techniques for these measurements.

  10. Searching for E(5) behavior in nuclei

    SciTech Connect (OSTI)

    Clark, R.M.; Cromaz, M.; Deleplanque, M.A.; Descovich, M.; Diamond, R.M; Fallon, P.; Lee, I.Y.; Macchiavelli, A.O.; Mahmud, H.; Rodriguez-Vieitez, E.; Stephens, F.S.; Ward, D.

    2004-01-01T23:59:59.000Z

    The properties of even-even nuclei with 30 {le} Z {le} 82, A {ge} 60 have been examined to find examples displaying the characteristics of E(5) critical-point behavior for the shape transition from a spherical vibrator to a triaxially soft rotor. On the basis of the known experimental state energies and E2 transition strengths, the best candidates that were identified are {sup 102}Pd, {sup 106,108}Cd, {sup 124}Te, {sup 128}Xe, and {sup 134}Ba. The closest agreement between experimental data and the predictions of E(5) is for {sup 128}Xe and for the previously suggested example of {sup 134}Ba. It is proposed that {sup 128}Xe may be a new example of a nucleus at the E(5) critical point.

  11. Large area liquid argon detectors for interrogation systems

    SciTech Connect (OSTI)

    Gary, Charles; Kane, Steve; Firestone, Murray I.; Smith, Gregory [Adelphi Technology LLC, Purdue Technology Center, 5225 Exploration Drive, Indianapolis, IN 46241 (United States); Gozani, Tsahi; Brown, Craig; Kwong, John; King, Michael J. [Rapiscan Laboratories, 520 Almanor Avenue, Sunnyvale, CA 94085 (United States); Nikkel, James A.; McKinsey, Dan [Physics Department, Yale University, New Haven, CT 06520 (United States)

    2013-04-19T23:59:59.000Z

    Measurements of the efficiency, pulse shape, and energy and time resolution of liquid argon (LAr) detectors are presented. Liquefied noble gas-based (LNbG) detectors have been developed for the detection of dark matter and neutrinoless double-beta decay. However, the same qualities that make LNbG detectors ideal for these applications, namely their size, cost, efficiency, pulse shape discrimination and resolution, make them promising for portal screening and the detection of Special Nuclear Materials (SNM). Two 18-liter prototype detectors were designed, fabricated, and tested, one with pure LAr and the other doped with liquid Xe (LArXe). The LArXe detector presented the better time and energy resolution of 3.3 ns and 20% at 662 KeV, respectively. The total efficiency of the detector was measured to be 35% with 4.5% of the total photons detected in the photopeak.

  12. Cosmic-ray-produced stable nuclides: various production rates and their implications

    SciTech Connect (OSTI)

    Reedy, R.C.

    1981-06-15T23:59:59.000Z

    The rates for a number of reactions producing certain stable nuclides, such as /sup 3/He and /sup 4/He, and fission in the moon are calculated for galactic-cosmic-ray particles and for solar protons. Solar-proton-induced reactions with bromine usually are not an important source of cosmogenic Kr isotopes. The /sup 130/Ba(n,p) reaction cannot account for the undercalculation of /sup 130/Xe production rates. Calculated production rates of /sup 15/N, /sup 13/C, and /sup 2/H agree fairly well with rates inferred from measured excesses of these isotopes in samples with long exposure ages. Cosmic-ray-induced fission of U and Th can produce significant amounts of fission tracks and of /sup 86/Kr, /sup 134/Xe, and /sup 136/Xe, especially in samples with long exposures to cosmic-ray particles.

  13. Demonstrate the removal efficiency and capacity of MOF materials for krypton recovery

    SciTech Connect (OSTI)

    Thallapally, Praveen K.; Liu, Jian; Strachan, Denis M.

    2013-08-23T23:59:59.000Z

    Metal organic framework materials (MOFs) were developed and tested in support of the U.S. Department of Energy Office of Nuclear Energy, Fuel Cycle Technology Separations and Waste Forms Campaign. Specifically, materials are being developed for the removal of xenon (Xe) and krypton (Kr) from gaseous products of nuclear fuel reprocessing unit operations. Two metal organic framework structures were investigated in greater detail to demonstrate the removal efficiency and capacity of MOF materials for krypton recovery. Our two bed breakthrough measurements on NiDOBDC and FMOFCu indicate these materials can capture and separate parts per million levels of Xe and Kr from air. The removal efficiency and adsorption capacity for Kr on these two MOFs were further increased upon removal of Xe upfront.

  14. Development and Test Evaluations for Ni-DOBDC Metal Organic Framework (MOF) Engineered Forms

    SciTech Connect (OSTI)

    Troy G. Garn; Mitchell Greenhalgh

    2013-07-01T23:59:59.000Z

    A joint effort to prepare engineered forms of a Ni-DOBDC metal organic framework (MOF) was completed with contributions from PNNL, SNL and the INL. Two independent methods were used at INL and SNL to prepare engineered form (EF) sorbents from Ni-DOBDC MOF powder developed and prepared at PNNL. Xe and Kr capacity test evaluations were performed at ambient temperature with the cryostat experimental setup at INL. The initial INL EF MOF test results indicated a Xe capacity of 1.6 mmol/kg sorbent and no Kr capacity. A large loss of surface area also occurred during minimal testing rendering the INL EF MOF unusable. Four capacity tests were completed using the SNL EF MOF at ambient temperature and resulted in Xe capacities of 1.4, 4.2, 5.0 and 3.8 mmol/kg sorbent with no Kr capacity observed in any ambient temperature tests. Two additional capacity tests were performed at 240 K to further evaluate SNL EF MOF performance. Xe capacities of 50.7 and 49.3 mmol/kg of sorbent and Kr capacities of 0.77 and 0.69 mmol/kg of sorbent were obtained, respectively. Following the adsorption evaluations, the SNL EF MOF material had lost about 40 % of the initial mass and 40 % of the initial surface area. In general, the Xe capacity results at ambient temperature for the INL and SNL EF Ni-DOBDC MOF’s were lower than 9.8 mmol Xe/kg sorbent test results reported by INL in FY-12 using PNNL’s inital EF supplied material.

  15. Robust upper limit on the neutron single-particle energy of the $i_{13/2}$ orbit

    E-Print Network [OSTI]

    Y. Lei; H. Jiang

    2014-10-28T23:59:59.000Z

    The boundary of the neutron $i_{13/2}$ single-particle energy is investigated with exact shell-model calculations, where random two-body interactions are adopted to overcome the bias from effective interactions. Excitation energies of $3^-_1$ state in $^{134}$Te and $^{136}$Xe, as well as those of $13/2^+_1$ states in $^{135}$Te and $^{137}$Xe, are taken as touchstones of our samplings. A robust upper limit of $\\varepsilon_{i13/2}mixing of $i_{13/2}$ single-neutron configuration and $f_{7/2}\\otimes 3^-$ configuration in $13/2^+_1$ states of $N=83$ isotones.

  16. Melt mixing causes negative correlation of trace element enrichment and CO2 content prior to an Icelandic eruption

    E-Print Network [OSTI]

    Neave, David A.; Maclennan, John; Edmonds, Marie; Thordarson, Thorvaldur

    2014-06-13T23:59:59.000Z

    for datasets that include and exclude highly enriched inclusions. Elements anal- ysed with low precision (e.g. F and Sm), or that are strongly af- fected by PEC or diffusive alteration (e.g. MgO, FeO and H2O), are excluded to prevent the identification... the best enriched and depleted end-member compositions (Ce and Cd): C = [ XeCe + (1? Xe)Cd ] (1? F )D?1 (1) where C is the concentration of an element in a melt inclusion and D is the bulk partition coefficient of the assemblage removed dur- ing...

  17. Linear Diagnostics to Assess the Performance of an Ensemble Forecast System

    E-Print Network [OSTI]

    Satterfield, Elizabeth A.

    2011-10-21T23:59:59.000Z

    . The mathematical model we adopt to predict the evolution of uncertainty in a local state estimate (analysis or forecast), xe, is based on the assumption that the error in the state estimate, ? = xe ? xt, (2.1) *Portions of this chapter have been reprinted from... variable. In Equation (2.1) xt is the model representation of the, in practice unknown, true state of the atmosphere. The covariance between the different components of ? is described by the error covariance matrix P`. We employ a K-member ensemble...

  18. States and Their Transitions The tuple

    E-Print Network [OSTI]

    Lyuu, Yuh-Dauh

    -Scholes formulas. ­ With the volatility set to a / 3 . ­ With the dividend yield set to qa (r + q + 2 /6)/2. · The formula is therefore C = Se-qa N(x) - Xe-r N(x - a ), (29) P = Xe-r N(-x + a ) - Se-qa N(-x), (29 ) ­ x ln(S/X)+(r-qa+2 a /2) a . c 2008 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 332 #12;An

  19. Cryogenic system with GM cryocooler for krypton, xenon separation from hydrogen-helium purge gas

    SciTech Connect (OSTI)

    Chu, X. X.; Zhang, D. X.; Qian, Y.; Liu, W. [Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 (China); Zhang, M. M.; Xu, D. [Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China)

    2014-01-29T23:59:59.000Z

    In the thorium molten salt reactor (TMSR), fission products such as krypton, xenon and tritium will be produced continuously in the process of nuclear fission reaction. A cryogenic system with a two stage GM cryocooler was designed to separate Kr, Xe, and H{sub 2} from helium purge gas. The temperatures of two stage heat exchanger condensation tanks were maintained at about 38 K and 4.5 K, respectively. The main fluid parameters of heat transfer were confirmed, and the structural heat exchanger equipment and cold box were designed. Designed concentrations after cryogenic separation of Kr, Xe and H{sub 2} in helium recycle gas are less than 1 ppb.

  20. A revised model of the kidney for medical internal radiation dose calculations

    E-Print Network [OSTI]

    Patel, Jyoti Shivabhai

    1988-01-01T23:59:59.000Z

    are frequently the organs receiving the highest level of radioactivity and, therefore, the largest radiation dose. Short lived radiopharmaceuticals, that are now injected in millicurie quantities in nuclear medicine for rapid-sequence imaging of the brain... radionuclides (Appendix B). 17 These include the following radionuclides presently used in nuclear medicine: P-32, Cr-51, Co-57, Ga-67, Tc-99m, In-ill, I-123, Xe-127, I-131, Xe-133, and T1-201. If the radionuclide emits penetrating radiation, the code...

  1. Molecular interactions with ice: Molecular embedding, adsorption, detection, and release

    SciTech Connect (OSTI)

    Gibson, K. D.; Langlois, Grant G.; Li, Wenxin; Sibener, S. J., E-mail: s-sibener@uchicago.edu [The James Franck Institute and Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637 (United States); Killelea, Daniel R. [Department of Chemistry and Biochemistry, Loyola University Chicago, 1068 W. Sheridan Ave., Chicago, Illinois 60660 (United States)

    2014-11-14T23:59:59.000Z

    The interaction of atomic and molecular species with water and ice is of fundamental importance for chemistry. In a previous series of publications, we demonstrated that translational energy activates the embedding of Xe and Kr atoms in the near surface region of ice surfaces. In this paper, we show that inert molecular species may be absorbed in a similar fashion. We also revisit Xe embedding, and further probe the nature of the absorption into the selvedge. CF{sub 4} molecules with high translational energies (?3 eV) were observed to embed in amorphous solid water. Just as with Xe, the initial adsorption rate is strongly activated by translational energy, but the CF{sub 4} embedding probability is much less than for Xe. In addition, a larger molecule, SF{sub 6}, did not embed at the same translational energies that both CF{sub 4} and Xe embedded. The embedding rate for a given energy thus goes in the order Xe > CF{sub 4} > SF{sub 6}. We do not have as much data for Kr, but it appears to have a rate that is between that of Xe and CF{sub 4}. Tentatively, this order suggests that for Xe and CF{sub 4}, which have similar van der Waals radii, the momentum is the key factor in determining whether the incident atom or molecule can penetrate deeply enough below the surface to embed. The more massive SF{sub 6} molecule also has a larger van der Waals radius, which appears to prevent it from stably embedding in the selvedge. We also determined that the maximum depth of embedding is less than the equivalent of four layers of hexagonal ice, while some of the atoms just below the ice surface can escape before ice desorption begins. These results show that energetic ballistic embedding in ice is a general phenomenon, and represents a significant new channel by which incident species can be trapped under conditions where they would otherwise not be bound stably as surface adsorbates. These findings have implications for many fields including environmental science, trace gas collection and release, and the chemical composition of astrophysical icy bodies in space.

  2. Digital autoland system for unmanned aerial vehicles

    E-Print Network [OSTI]

    Wagner, Thomas William, Jr.

    2007-09-17T23:59:59.000Z

    Identification (OKID) [23] is used to determine a linear time-invariant (LTI) state-space representation of the C700. The linear state-space model is in the form ?x = Ax+Bu state equation y = Cx+Du output equation (3.1) 9 where x?Rn×1 is a state vector with n... states, u?Rm×1 is an input vector with m inputs, y ? Rp×1 is an output vector with p outputs, A ? Rn×n is a plant matrix, B ? Rn×m is a control distribution matrix, and C ? Rp×n and D ? Rp×m are matrices that determine the elements of the output vector...

  3. An analysis of transient heat flow through an infinite plate by electric analogy

    E-Print Network [OSTI]

    Barbin, Allen Ray

    2012-06-07T23:59:59.000Z

    cons r f i, ile San'o rn rrc r&I?r ono sir-ri "I;liler t t!lat illustrated in I", u 9 ~ ". . . crdillctes n" ell elle!1 cl!rvcs r-n e- s n. cd t!l?1 crrrnrt i t s::e sc-. ?. c!lid since . 'n!/(" ? e; ) = (Const. ?t): for ccc'. ! ", . -'-. ;:: r..."ur!e c I t'. e . -;- n order oi agnitud? icr all values '!L/: . . Failure n, :&e -. n-1 !&? . ": lutir n. . t? ?"' e1 ". c!&act- 1y ' . - sa . , ". values as ", :n &aathemat'cal troat. . . ent i" pr bab!y du& t- ! ne or ' rn & I th fo11c&. -in...

  4. Semiempirical range and stopping power values for heavy ions

    E-Print Network [OSTI]

    Schilling, Ralph Franklin, III

    2012-06-07T23:59:59.000Z

    0 CO CCI CO O O O rn UJ O r mU. m ~ ~ ~ OOOOO cl N O I N 4 O' ICI N w ~ Q ~ N ~ U 0 Q If Cl CO 0' M 0' In ICI ~ ~ 0 000 ~ ~ ~ Ln or o o Lnr o UO N Z O' pCI rn N w ~ ~ ~ ~ Q 4 ~ 0 N CCI OI 0 0 r UI Cr rll m ~ ~ N 0 m... O ~ ~ N U'. r co I ~ ~ N 0 O UO CO CO Q N N ~ ~ nd NI 0 0 ILI C3 CO 0 0 t CO r UJ O' rh ~ ~ cn 0 N 'Z \\ ~ CO m rn m ~ ~ U, 0 N CO cn N N ~ ~ 0 0 U I I 4 I ? 4 4 G V 4 a a LU N IU UJ CO O Lf 0 UJ...

  5. The effect of artificial drying temperature on the quality of early harvested pecan kernels

    E-Print Network [OSTI]

    McLean, Roy William

    2012-06-07T23:59:59.000Z

    al C N 0 I aS 0, 0, N aS C N O 0 CS 0 19 who 0 0 0 u7 w K (o c& &codd~ 0 4 0 Cl 88881 o 2 sante~ ? e zaqunH rd I dl A (d (d o 0 4 Q 0 0 ) rn 4 Q ~ (d (d (d ~ I 0 Q xv (d 0 4 Q. C4 wE CE 0 g 0 CA 0 Q (d ~ 4... (d go O O 4 (rl '0 ) (d 4 o (d o + rfr Q ~ N N ~ 0 g l g (dan o (d ~4 rn (d 4 ~ (d &D Cd e 4 (d ~ rn 0 2 ~0 4 w o N Q 4 (d 0 o %(o cd 0 dr C4 g4 N cd g (d (d O 0 A o ~ 20 Cz Ea&40 0 0 0 If& D D lP C& (XI...

  6. Measurement of the Neutron Radius of 208Pb Through Parity-Violation in Electron Scattering

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

    Abrahamyan, Sergey; Albataineh, Hisham; Aniol, Konrad; Armstrong, David; Armstrong, Whitney; Averett, Todd; Babineau, Benjamin; Barbieri, A; Bellini, Vincenzo; Beminiwattha, Rakitha; Benesch, Jay; Benmokhtar, Fatiha; Bierlarski, Trevor; Boeglin, Werner; Camsonne, Alexandre; Canan, Mustafa; Carter, Philip; Cates, Gordon; Chen, Chunhua; Chen, Jian-Ping; Hen, O; Cusanno, Francesco; Dalton, Mark; De Leo, Raffaele; De Jager, Cornelis; Deconinck, Wouter; Decowski, Piotr; Deng, Xiaoyan; Deur, Alexandre; Dutta, Dipangkar; Etile, Asenath; Flay, David; Franklin, Gregg; Friend, Megan; Frullani, Salvatore; Fuchey, Eric; Garibaldi, Franco; Gasser, Estelle; Gilman, Ronald; Guisa, Antonio; Glamazdin, Oleksandr; Gomez, Javier; Grames, Joseph; Gu, Chao; Hansen, Jens-Ole; Hansknecht, John; Higinbotham, Douglas; Holmes, Richard; Holmstrom, Timothy; Horowitz, Charles; Hoskins, Joshua; Huang, Jin; Hyde, Charles; Itard, Florian; Jen, Chun-Min; Jensen, Eric; Jin, Ge; Johnston, Sereres; Kelleher, Aidan; Kliakhandler, Konstantin; King, Paul; Kowalski, Stanley; Kumar, Krishna; Leacock, John; Leckey, John; Lee, Jeong Han; LeRose, John; Lindgren, Richard; Liyanage, Nilanga; Lubinsky, Nicholas; Mammei, Juliette; Mammoliti, Francesco; Margaziotis, Demetrius; Markowitz, Pete; McCreary, Amber; McNulty, Dustin; Mercado, Luis; Meziani, Zein-Eddine; Michaels, Robert; Mihovilovic, Miha; Muangma, Navaphon; Munoz Camacho, Carlos; Nanda, Sirish; Nelyubin, Vladimir; Nuruzzaman,; Oh, Yongseok; Palmer, Alvin; Parno, Diana; Paschke, Kent; Phillips, Sarah; Poelker, Benard; Pomatsalyuk, Roman; Posik, Matthew; Puckett, Andrew; Quinn, Brian; Rakhman, A; Reimer, Paul; Riordan, Seamus; Rogan, Patrick; Ron, Guy; Russo, Guiseppe; Saenboonruang, Kiadtisak; Saha, Arunava; Sawatzky, Bradley; Shahinyan, Albert; Silwal, Rupesh; Sirca, Simon; Slifer, Karl; Solvignon-Slifer, Patricia; Souder, Paul; Leda Sperduto, Maria; Subedi, Ramesh; Suleiman, Riad; Sulkosky, Vincent; Sutera, Concetta; Tobias, William; Troth, Wolfgang; Urciuoli, Guido; Buddhini Waidyawansa, Dinayadura; Wang, Diancheng; Wexler, Jonathan; Wilson, Richard; Wojtsekhowski, Bogdan; Yan, Xinhu; Yao, Huan; Ye, Yunxiu; Ye, Zhiohong; Yim, Vireak; Zana, Lorenzo; Zhan, Xiaohui; Zhang, Jixie; Zhang, Y; Zheng, Xiaochao; Zhu, Pengjia

    2012-03-15T23:59:59.000Z

    We report the first measurement of the parity-violating asymmetry APV in the elastic scattering of polarized electrons from 208Pb. APV is sensitive to the radius of the neutron distribution (Rn). The result APV = 0.656 ± 0.060 (stat) ± 0.013 (syst) corresponds to a difference between the radii of the neutron and proton distributions Rn-Rp = 0.33-0.18+0.16 fm and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.

  7. Measurement of the Neutron Radius of 208Pb Through Parity-Violation in Electron Scattering

    E-Print Network [OSTI]

    S. Abrahamyan; Z. Ahmed; H. Albataineh; K. Aniol; D. S. Armstrong; W. Armstrong; T. Averett; B. Babineau; A. Barbieri; V. Bellini; R. Beminiwattha; J. Benesch; F. Benmokhtar; T. Bielarski; W. Boeglin; A. Camsonne; M. Canan; P. Carter; G. D. Cates; C. Chen; J. -P. Chen; O. Hen; F. Cusanno; M. M. Dalton; R. De Leo; K. de Jager; W. Deconinck; P. Decowski; X. Deng; A. Deur; D. Dutta; A. Etile; D. Flay; G. B. Franklin; M. Friend; S. Frullani; E. Fuchey; F. Garibaldi; E. Gasser; R. Gilman; A. Giusa; A. Glamazdin; J. Gomez; J. Grames; C. Gu; O. Hansen; J. Hansknecht; D. W. Higinbotham; R. S. Holmes; T. Holmstrom; C. J. Horowitz; J. Hoskins; J. Huang; C. E. Hyde; F. Itard; C. -M. Jen; E. Jensen; G. Jin; S. Johnston; A. Kelleher; K. Kliakhandler; P. M. King; S. Kowalski; K. S. Kumar; J. Leacock; J. Leckey IV; J. H. Lee; J. J. LeRose; R. Lindgren; N. Liyanage; N. Lubinsky; J. Mammei; F. Mammoliti; D. J. Margaziotis; P. Markowitz; A. McCreary; D. McNulty; L. Mercado; Z. -E. Meziani; R. W. Michaels; M. Mihovilovic; N. Muangma; C. Muñoz-Camacho; S. Nanda; V. Nelyubin; N. Nuruzzaman; Y. Oh; A. Palmer; D. Parno; K. D. Paschke; S. K. Phillips; B. Poelker; R. Pomatsalyuk; M. Posik; A. J. R. Puckett; B. Quinn; A. Rakhman; P. E. Reimer; S. Riordan; P. Rogan; G. Ron; G. Russo; K. Saenboonruang; A. Saha; B. Sawatzky; A. Shahinyan; R. Silwal; S. Sirca; K. Slifer; P. Solvignon; P. A. Souder; M. L. Sperduto; R. Subedi; R. Suleiman; V. Sulkosky; C. M. Sutera; W. A. Tobias; W. Troth; G. M. Urciuoli; B. Waidyawansa; D. Wang; J. Wexler; R. Wilson; B. Wojtsekhowski; X. Yan; H. Yao; Y. Ye; Z. Ye; V. Yim; L. Zana; X. Zhan; J. Zhang; Y. Zhang; X. Zheng; P. Zhu

    2012-01-13T23:59:59.000Z

    We report the first measurement of the parity-violating asymmetry A_PV in the elastic scattering of polarized electrons from 208Pb. A_PV is sensitive to the radius of the neutron distribution (Rn). The result A_PV = 0.656 \\pm 0.060 (stat) \\pm 0.014 (syst) ppm corresponds to a difference between the radii of the neutron and proton distributions Rn - Rp = 0.33 +0.16 -0.18 fm and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.

  8. ALGEBRA LINEAL I 1er Curso de CC. Fisicas.

    E-Print Network [OSTI]

    Guijarro, Luis

    ´on correcta del resultado. 3. Dados S1 = L 1 2 3 4 , 1 0 3 0 M2�2(R) S2 = L 0 0 1 2 , 1 1 3 2 M2�2(R) a) Hallar razonadamente una base de S1 + S2. b) Hallar razonadamente una base de un complementario de S1 + S considerar´a nulo). a) |A| = |At | b) Demostrar que n vectores independientes de Rn son una base de Rn . #12;

  9. Spherical radon transforms and mathematical problems of thermoacoustic tomography

    E-Print Network [OSTI]

    Ambartsoumian, Gaik

    2009-06-02T23:59:59.000Z

    the two terms interchangeably throughout the text. Let f(x) be a continuous function on Rn, n ? 2. Deflnition 1. The circular Radon transform of f is deflned as Rf(p;r) = Z jy?pj=r f(y)d (y); where d (y) is the surface area on the sphere jy ?pj = r... centered at p 2Rn. In this deflnition we do not restrict the set of centers p or radii r. It is clear, how- ever, that this mapping is overdetermined, since the dimension of pairs (p;r) is n+1, while the function f depends on n variables only...

  10. Cross Layer Coding Schemes for Broadcasting and Relaying

    E-Print Network [OSTI]

    John Wilson, Makesh Pravin

    2011-08-08T23:59:59.000Z

    of transmitting N samples of a real analog source v 2 RN , whose components are independent realizations of a random variable V ? N (0; 2v) in N uses of an AWGN channel with noise variance 2 in the presence of side information. It is assumed... at the transmitter + + S V?Encoder DecoderXV W Y Fig. 2. Block diagram of the joint source channel coding problem with interference known only at the transmitter. We flrst consider the problem of transmitting N samples of a real analog source v 2 RN , whose...

  11. A Weighted Residual Framework for Formulation and Analysis of Direct Transcription Methods for Optimal Control

    E-Print Network [OSTI]

    Singh, Baljeet

    2012-02-14T23:59:59.000Z

    . First condition in Eqn. (2.2) provides n number of equations which can theoretically solve for n number of unknown components of x . Next, we look at a constrained optimization problem in the form, min x J = (x) : Rn ! R; subject to (x) = 0 2 Rm... with inequality constraints as fol- lowing: min x J = (x) : Rn ! R; subject to (x) 0 2 Rm; m < n: (2.8) For this problem, we derive the conditions for optimality using slack variables and Lagrange multipliers. Slack variables are used to convert...

  12. Semianalytic Monte Carlo calculation of reflected and transmitted radiance in a plane parallel atmosphere

    E-Print Network [OSTI]

    Moffitt, John Russell

    2012-06-07T23:59:59.000Z

    =T Fig. 1. Pictorial representation of plane parallel atmosphere geometry. is m dr 0 where n =cos 8 n n and m is the albedo for single scattering. The probability of pas- 0 sage from r' to r without further scattering is exp [-(r' ? r)/n ]. n+1... Therefore, the probability of passage through any plane r after n+1 collisions, is a product of these three probabilities. p (r') exp [-(r' ? r)/n ] dr' n+1 n After integrating over all possible values of r' between 0 and for n & 0, an equation...

  13. Applications of radon distribution and radon flux for the determination of oceanic mixing and air-sea gas exchange

    E-Print Network [OSTI]

    Brewer, Robert Lewis

    2012-06-07T23:59:59.000Z

    Fcaglcy Blanks Stripper Blanks Ef Bciency 27 29 30 31 32 35 35 B ESULTS Sample Locations. Mid-Wa. tcr '6B, . - ' B n Sediment and. Near-13ottorn Ba ? Rn Surface Rn. 36 36 39 42 56 C 0 NC I. U SI 0 NS LITERATURE CITED VITA 60 63 Ll... ' Ba concentrations ranging Z26 I'rom 8. 8 to 15. 4 dpm (100 t), Hroeckcr (1964) and 13roeckcr 40 226 Table 9. Mid-Water Ra. Concentrations. Leg 1' State on Julian Long. ~Da 'N Lat. W &'ill T 1IHe S ample ht j 01'M (&00 P). 91 20. 19 83...

  14. A-Discriminant Varieties and Amoebae

    E-Print Network [OSTI]

    Rusek, Korben Allen

    2013-05-15T23:59:59.000Z

    of invertible k k matrices with elements in F H(m;n) The number of connected components in the complement of m real hyperplanes in Rn HT (m;n) The number of connected components in the complement of m tropical hyperplanes in Rn K An algebraically closed... = 3. . . . . . . . . . . . . . . . . . . . . . . . . 43 4.1 Complex A-discriminant (left) and tropical A-discriminant (right). . . 47 5.1 Cover the image of ? with hyperplanes. . . . . . . . . . . . . . . . . . 58 5.2 minfx+ 1; y + 2; 4g is linear...

  15. Analysis of a PML method applied to computation to resonances in open systems and acoustic scattering problems

    E-Print Network [OSTI]

    Kim, Seungil

    2010-01-14T23:59:59.000Z

    Inthis section, we shallintroduce the interiorandglobalregularityresults ofuniformly elliptic operators of the form L(u) = ? Nsummationdisplay i,j=1 ? ?xi(a ij(x) ? ?xju)+ Nsummationdisplay i=1 bi(x) ??x i u+c(x)u, with Nsummationdisplay i,j=1 aij...(x)?i?j ??|?|2, for all x? ?, ? ?RN. (II.2) We will state the regularity results. See e.g., [27, 29] for detail. Theorem II.7. Let ? be an open subset of RN. Let u ? H1(?) be a weak solution of the equation Lu = f in ? where L is strictly elliptic...

  16. Written by: Al Hansen, University of Illinois at Urbana-Champaign Also written by: Robert Hornbaker, Qin Zhang, John Reid, Loren Bode

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    WD tractor Rated power (gross engine power) 316 kW (425 hp) xE Diesel On-Farm Evaluation Project Hornbaker, Qin Zhang, John Reid, Loren Bode Date: 08/4/00 Project Title: Evaluation of E diesel representatives in the middle of February, 2000, evaluation of E Diesel commenced at the beginning of April, 2000

  17. Systematics of cross sections for target K-vacancy production in heavy ion collisions

    E-Print Network [OSTI]

    Peng, Yong

    2007-04-25T23:59:59.000Z

    Cross sections for K-shell ionization by heavy ions have been determined from the measurements of target K x-ray yields. The measurements were performed with Ar, Kr, and Xe ions at energies from 2.5 to 25 MeV/amu and self-supported metallic foil...

  18. First applications of the HIPSE event generator Aymeric Van Lauwe, Denis Lacroix and Dominique Durand

    E-Print Network [OSTI]

    Boyer, Edmond

    of nuclear collisions in the intermediate energy range, are compared with experimental data collected, comparisons between the model and the experiment have been performed for the system Xe+Sn from 25 to 80 MeV/u bombarding energy [3, 4, 5, 6, 7, 8]. 2. Brief presentation of the experimental data In order to test

  19. X-Ray Reflectivity ofa 200 Layer W25Si75

    E-Print Network [OSTI]

    together with EDB INIS-DE only together with EDB-DE Only non-nuclear energy in EDB AT/CH/DD/XE SIGLE only'-- : .;. .>· - _... ._ Compiled Data Evaluated Data Experimental Data Statistical Data Theoretical Data DataBase · " t " ' -- INIS

  20. EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH CERNPPE/95027

    E-Print Network [OSTI]

    mesons. The measurements for the vector states update previously published results based on lower cross sections, with respect to the scaled energy variable xE , have been compared to JETSET and HERWIG 15 , O.C. Cooke 16 , M. Cuffiani 2 , S. Dado 22 , C. Dallapiccola 17 , G.M. Dallavalle 2 , C. Darling

  1. Xavier Gr`acia _ Geometria Diferencial 2 _ Suplement d'`algebra _ 21 mar,c 2007* * 1

    E-Print Network [OSTI]

    Gràcia, Xavier

    Xavier Gr`acia _ Geometria Diferencial 2 _ Suplement d'`algebra _ 21 mar,c 2007'o lineal "x:E manera s'obt'e una aplicaci'o linea* *l canSexemplesuinteressants,psobreose* *m que E t'e una base finita (ei). Llavors E*t'e l'anomenada base dual diverses q"uestions d'`algebra

  2. Adsorption Isotherms for Xenon and Krypton using INL HZ-PAN and AgZ-PAN Sorbents

    SciTech Connect (OSTI)

    Troy G. Garn; Mitchell Greenhalgh; Veronica J. Rutledge; Jack D. Law

    2014-08-01T23:59:59.000Z

    The generation of adsorption isotherms compliments the scale-up of off-gas processes used to control the emission of encapsulated radioactive volatile fission and activation products released during Used Nuclear Fuel (UNF) reprocessing activities. A series of experiments were conducted to obtain capacity results for varying Kr and Xe gas concentrations using HZ-PAN and AgZ-PAN engineered form sorbents. Gas compositions for Kr ranged from 150-40,000 ppmv and 250-5020 ppmv for Xe in a helium balance. The experiments were all performed at 220 K at a flowrate of 50 sccm. Acquired capacities were then respectively fit to the Langmuir equation using the Langmuir linear regression method to obtain the equilibrium parameters Qmax and Keq. Generated experimental adsorption isotherms were then plotted with the Langmuir predicted isotherms to illustrate agreement between the two. The Langmuir parameters were provided for input into the OSPREY model to predict breakthrough of single component adsorption of Kr and Xe on HZ-PAN and AgZ-PAN sorbents at the experimental conditions tested. Kr and Xe capacities resulting from model breakthrough predictions were then compared to experimental capacities for model validation.

  3. The CsI Multi-GEM Photomultiplier A.Breskin 1

    E-Print Network [OSTI]

    electron multipliers. The detector is filled with argon and other non-aging mixtures of Ar/Ne , Ar/Xe , Ar pixelized position sensitive photon detectors, capable of operation at high photon flux and under MHz frame for photon localization over very large sensitive areas and under high illumination flux. They offer single

  4. MATERIALS AND MOLECULAR RESEARCH DIVISION ANNUAL REPORT 1979

    E-Print Network [OSTI]

    Authors, Various

    2013-01-01T23:59:59.000Z

    of 1 mole of ClF5 ")\\uF6- to J\\uCl yields six moles ofreacts with XeF6 to foDll UF6. The M-F stretching and M-0appears more covalent than UF6-. However, if the bonding is

  5. To link to this article : DOI:10.1016/j.anucene.2013.04.026 URL : http://dx.doi.org/10.1016/j.anucene.2013.04.026

    E-Print Network [OSTI]

    Mailhes, Corinne

    as prediction of xe- non induced oscillations are an important part in the operation of a nuclear power plant and a 4DVAR scheme. Tests were made in twin experiments using a simulation code which implements a mono-dimensional coupled model of xenon dynamics, thermal, and thermal­hydraulic processes. We enlighten the very good

  6. In-situ gamma spectrometry measurements of time-dependent Xenon-135 inventory in the TRIGA Mark II reactor Vienna

    E-Print Network [OSTI]

    Riede, Julia

    2013-01-01T23:59:59.000Z

    In this work, it has been shown that the time dependent Xe-135 inventory in the TRIGA Mark II reactor in Vienna, Austria can be measured via gamma spectrometry even in the presence of strong background radiation. It is focussing on the measurement of (but not limited to) the nuclide Xe-135. The time dependent Xe-135 inventory of the TRIGA Mark II reactor Vienna has been measured using a temporary beam line between one fuel element of the core placed onto the thermal column after shutdown and a detector system located just above the water surface of the reactor tank. For the duration of one week, multiple gamma ray spectra were recorded automatically, starting each afternoon after reactor shutdown until the next morning. One measurement series has been recorded over the weekend. The Xe-135 peaks were extracted from a total of 1227 recorded spectra using an automated peak search algorithm and analyzed for their time-dependent properties. Although the background gamma radiation present in the core after shutdown...

  7. 24 February1995 ChemicalPhysicsLetters233 (1995)555-558

    E-Print Network [OSTI]

    Apkarian, V. Ara

    of Xe, OCS readily dissociates upon irradiation at 248 nm. On continuation of the laser irradiation prepared in a closed-cycle cryostat equipped with four optical windows. The details of the growth scheme from Takachiho Shoji Co. Both gases were used without further purifica- tion. Irradiation

  8. Densification, anisotropic deformation, and plastic flow of SiO2 during MeV heavy ion irradiation

    E-Print Network [OSTI]

    Polman, Albert

    use in optical fibers. Some of the studies showed that ion irradiation causes densificationDensification, anisotropic deformation, and plastic flow of SiO2 during MeV heavy ion irradiation E and implantation masks to 4.0 MeV Xe irradiation is studied. Trenches in silica deform dramatically after

  9. Hyperfine Quenching: Review of Experiment and W.R. Johnson

    E-Print Network [OSTI]

    Johnson, Walter R.

    1 Hyperfine Quenching: Review of Experiment and Theory W.R. Johnson Abstract: We give a brief-like Xe Tr¨abert et al. [38]. W.R. Johnson.1 Department of Physics, 225 Nieuwland Science Hall, University of Notre Dame, Notre Dame IN 46556 1 Corresponding author (e-mail: johnson@nd.edu). Differences between

  10. Ion Impacts on Graphene/Ir(111): Interface Channeling, Vacancy Funnels, and a Nanomesh

    E-Print Network [OSTI]

    Krasheninnikov, Arkady V.

    Ion Impacts on Graphene/Ir(111): Interface Channeling, Vacancy Funnels, and a Nanomesh Sebastian simulations we study the production of defects in graphene on Ir(111) under grazing incidence of low energy Xe ions. We demonstrate that the ions are channeled in between graphene and the substrate, giving rise

  11. Infrastructure Hans de Vries

    E-Print Network [OSTI]

    Vries, Hans de

    > National Model and Data Centre > National cooperation in the eld of observations/observation systems G G G servers > SAN: EMC CLARiiON CX4 > Spectra Logic T950 tape library + SGI Altix XE 270 cluster > Linux #12;G G G G User remarks > Plans for new BUFR library? > MARS (ECFS) reliability, performance issues

  12. Status of EXO-200

    SciTech Connect (OSTI)

    Ackerman, Nicole; /SLAC

    2011-12-06T23:59:59.000Z

    EXO-200 is the first phase of the Enriched Xenon Observatory (EXO) experiment, which searches for neutrinoless double beta decay in {sup 136}Xe to measure the mass and probe the Majorana nature of the neutrino. EXO-200 consists of 200 kg of liquid Xe enriched to 80% in {sup 136}Xe in an ultra-low background TPC. Energy resolution is enhanced through the simultaneous collection of scintillation light using Large Area Avalanche Photodiodes (LAAPD's) and ionization charge. It is being installed at the WIPP site in New Mexico, which provides a 2000 meter water-equivalent overburden. EXO-200 will begin taking data in 2009, with the expected two-year sensitivity to the half-life for neutrinoless double beta decay of 6.4 x 10{sup 25} years. According to the most recent nuclear matrix element calculations, this corresponds to an effective Majorana neutrino mass of 0.13 to 0.19 eV. It will also measure the two neutrino mode for the first time in {sup 136}Xe.

  13. Xenon purity analysis for EXO-200 via mass spectrometry , C. Hall a,n

    E-Print Network [OSTI]

    Gratta, Giorgio

    at the WIPP facility near Carlsbad, New Mexico [2]. EXO-200 is sensitive to a neutrinoless double beta decay collaboration is constructing and operating a series of experiments to search for the neutrinoless double beta decay of 136 Xe [1]. The first such experiment, known as EXO-200, is currently collecting data

  14. arXiv:1109.1046v1[physics.ins-det]6Sep2011 Xenon purity analysis for EXO-200 via mass

    E-Print Network [OSTI]

    Gratta, Giorgio

    for the neutrinoless double beta decay of 136 Xe[1]. The first such experiment, known as EXO-200, is currently double beta decay half life of 6.4 Ã? 1025 years, equivalent to a Majorana neutrino mass of order 100 me collecting data at the WIPP facility near Carlsbad, New Mexico[2]. EXO-200 is sensitive to a neutrinoless

  15. Nuclear structure relevant to neutrinoless double beta decay candidate {sup 130}Te and other recent results

    SciTech Connect (OSTI)

    Kay, B. P. [Physics Division, Argonne National Laboratory, Illinois 60439 (United States)

    2013-12-30T23:59:59.000Z

    We have undertaken a series of single-nucleon and pair transfer reaction measurements to help constrain calculations of the nuclear matrix elements for neutrinoless double beta decay. In this talk, a short overview of measurements relevant to the {sup 130}Te?{sup 130}Xe system is given. Brief mention is made of other recent and forthcoming results.

  16. Eur. Phys. J. D 6, 8387 (1999) THE EUROPEAN

    E-Print Network [OSTI]

    Fisica Springer-Verlag 1999 Dependence of cluster ion emission from uranium oxide surfaces on the charge for highly charged ion sputtering have been measured for a uranium oxide target for Xe44+ , Au63.46.+w Clusters, nanoparticles, and nanocrystalline materials ­ 82.65.-i Surface and interface chemistry

  17. Photoelectron Spectroscopy of Anions at 118.2 nm: Observation...

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

    coherent vacuum ultraviolet radiation at 118.2 nm (10.488 eV) by tripling the third harmonic output (355 nm) of a Nd:YAG laser in a XeAr cell. Our study focuses on a set of...

  18. Status of EXO-200

    E-Print Network [OSTI]

    Nicole Ackerman

    2009-09-09T23:59:59.000Z

    EXO-200 is the first phase of the Enriched Xenon Observatory (EXO) experiment, which searches for neutrinoless double beta decay in 136Xe to measure the mass and probe the Majorana nature of the neutrino. EXO-200 consists of 200 kg of liquid Xe enriched to 80% in 136Xe in an ultra-low background TPC. Energy resolution is enhanced through the simultaneous collection of scintillation light using Large Area Avalanche Photodiodes (LAAPD's) and ionization charge. It is being installed at the WIPP site in New Mexico, which provides a 2000 meter water-equivalent overburden. EXO-200 will begin taking data in 2009, with the expected two-year sensitivity to the half-life for neutrinoless double beta decay of 6.4 10^25 years. According to the most recent nuclear matrix element calculations, this corresponds to an effective Majorana neutrino mass of 0.13 to 0.19 eV. It will also measure the two neutrino mode for the first time in 136Xe.

  19. Status of Particle Physics 1999 -2009 -2019

    E-Print Network [OSTI]

    Hebbeker, Thomas

    : oscillations and masses Super- Kamiokande solar: xe atmospheric: x SNO 2005 · sun is doing all right-layer additional b-layerATLAS Pixel phase I phase II ? CMS tracker #12;e+e- linear collider ILC 500-1000 GeV c

  20. THERMAL LOADING OF A DIRECT DRIVE TARGET IN

    E-Print Network [OSTI]

    Raffray, A. René

    optics. A background gas, such as Xe, could reduce the damage on the wall from ion and heat loading fusion micro explosion (~ 10 Hz), ions and heat loads threaten to damage the reactor wall and driver. · The thermal loading of a target (radiation from the chamber wall and convection from the protective gas) may

  1. December 5-6, 2002 HAPL Program Workshop, NRL, Washington, D.C. 1 Enhancing Target Survival

    E-Print Network [OSTI]

    Raffray, A. René

    as Background Gas · For an assumed condensation coefficient of ~1, q''= 6000 W/m2 with only 2.5mtorr/4000K Xe on Maintaining DT Below its Triple Point · Analysis using ANSYS - Target is not tumbling - 2-D heat flux · Major limit on energy transfer from background gas and absorbed radiation from chamber wall #12;December

  2. October 27-28, 2004 HAPL meeting, PPPL 1

    E-Print Network [OSTI]

    Raffray, A. René

    - Mechanical Analysis of the Target Heat loads: · Energy transfer from impinging atoms of background gas?) · Better definition is needed Physics requirements: IFE Chamber (R~6 m) Protective gas (Xe, He) at ~4000 K - Enthalpy transfer (including condensation) or convective loading - Recombination of ions (much uncertainty

  3. The I*(2P1/2)-I*(2P1/2) Contact Pair Emission in Condensed Media: A Molecular Spring-Gauge for Cavity Sizing

    E-Print Network [OSTI]

    Apkarian, V. Ara

    rare gas matrixes of Ar, Kr, and Xe.2 We recognize that these condensed phase emission spectraThe I*(2P1/2)-I*(2P1/2) Contact Pair Emission in Condensed Media: A Molecular Spring-Rg potentials. The analysis yields a refined I*I* potential and provides a calibration curve to readout

  4. Numer. Math. 38, 309-332 (1982) Numerische 9 Springer-Verlag 1982

    E-Print Network [OSTI]

    Pironneau, Olivier

    1982-01-01T23:59:59.000Z

    -Diffusion Algorithm and Its Applications to the Navier-Stokes Equations O. Pironneau D6partement de Math6matiques, CSP the velocity of the flow at xe(2 and time t. Although it is not essential, we shall assume fo

  5. Xenon in Mercury-Manganese Stars

    E-Print Network [OSTI]

    M. M. Dworetsky; J. L. Persaud; K. Patel

    2008-01-16T23:59:59.000Z

    Previous studies of elemental abundances in Mercury-Manganese (HgMn) stars have occasionally reported the presence of lines of the ionized rare noble gas Xe II, especially in a few of the hottest stars with Teff ~ 13000--15000 K. A new study of this element has been undertaken using observations from Lick Observatory's Hamilton Echelle Spectrograph. In this work, the spectrum synthesis program UCLSYN has been used to undertake abundance analysis assuming LTE. We find that in the Smith & Dworetsky sample of HgMn stars, Xe is vastly over-abundant in 21 of 22 HgMn stars studied, by factors of 3.1--4.8 dex. There does not appear to be a significant correlation of Xe abundance with Teff. A comparison sample of normal late B stars shows no sign of Xe II lines that could be detected, consistent with the expected weakness of lines at normal abundance. The main reason for the previous lack of widespread detection in HgMn stars is probably due to the strongest lines being at longer wavelengths than the photographic blue. The lines used in this work were 4603.03A, 4844.33A and 5292.22A.

  6. Investigation of collective radial expansion and stopping in heavy ion collisions at Fermi energies

    E-Print Network [OSTI]

    Boyer, Edmond

    Investigation of collective radial expansion and stopping in heavy ion collisions at Fermi energies in central Xe+Sn reactions at Fermi energies. Performing a comparison between the predictions central collisions at Fermi energies. However, considering the same central event selection

  7. Contributed papers Study of gas-fluidization dynamics with laser-polarized 129

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    Gas fluidization is a process in which solid particles experience fluid-like suspension in an upward. Bubbles, or void spaces with volume much larger than that of a single particle, emerge when the gas flowContributed papers Study of gas-fluidization dynamics with laser-polarized 129 Xe Ruopeng Wanga

  8. DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT Version Date 8/14/01

    E-Print Network [OSTI]

    Wechsler, Risa H.

    are small with respect to the absolute mass scale [6], to the hierarchical, where mass differences . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.2 Xe purification techniques . . . . . . . . . . . . . . . . . . . . . . . . 34 4.3 Ultimate are of the same order as the mass themselves. However, while the neutrino mass scale is unknown, the present data

  9. 11 SOME PROPERTIES OF A NEW CONJUGATE GRADIENT METHOD

    E-Print Network [OSTI]

    Yuan, Ya-xiang

    11 SOME PROPERTIES OF A NEW CONJUGATE GRADIENT METHOD Y. H. Dai and Y. Yuan State Key Laboratory@cc.ac.cn Abstract: It is proved that the new conjugate gradient method proposed by Dai and Yuan 5] produces problem minf(x) x 2 Rn (1.1) where f is smooth and its gradient g is available. Conjugate gradient methods

  10. Atmos. Chem. Phys., 7, 697712, 2007 www.atmos-chem-phys.net/7/697/2007/

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    . This work is licensed under a Creative Commons License. Atmospheric Chemistry and Physics Characterization of the 222 Rn family turbulent transport in the convective atmospheric boundary layer J.-F. Vinuesa and S atmospheric boundary layers (CBL) is inves- tigated. Large eddy simulation is used to simulate their dis

  11. Journal of Machine Learning Research 3 (2003) 1439-1461 Submitted 5/02; Published 3/03 Use of the Zero-Norm with Linear Models and Kernel Methods

    E-Print Network [OSTI]

    Journal of Machine Learning Research 3 (2003) 1439-1461 Submitted 5/02; Published 3/03 Use of such a quantity has many uses in a machine learning context: for variable or feature selection, minimizing In pattern recognition, many learning machines, given training data xi Rn,i = 1,...,m with corre- sponding

  12. MFR PAPER 1032 Tens of thousands of genera of insects

    E-Print Network [OSTI]

    \\\\ long each stage take,. but laborator) data from reari ng clo,e1) related fre,h\\\\ ater gerrids ( heng a rca on able perll1d for each lage Hence it \\\\ould require a pen'ld III Lanna ' heng i a rn~lI\\hl'r III

  13. Weak charge form factor and radius of 208Pb through parity violation in electron scattering

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

    Horowitz, C J; Jen, C -M; Rakhman, A; Souder, P A; Dalton, M M; Liyanage, N; Paschke, K D; Saenboonruang, K; Silwal, R; Franklin, G B; Friend, M; Quinn, B; Kumar, K S; McNulty, D; Mercado, L; Riordan, S; Wexler, J

    2012-03-26T23:59:59.000Z

    We use distorted wave electron scattering calculations to extract the weak charge form factor FW(q?), the weak charge radius RW, and the point neutron radius Rn, of 208Pb from the PREX parity violating asymmetry measurement. The form factor is the Fourier transform of the weak charge density at the average momentum transfer q? = 0.475 fm-1. We find FW(q?) = 0.204 ± 0.028(exp) ± 0.001(model). We use the Helm model to infer the weak radius from FW(q?). We find RW = 5.826 ± 0.181(exp) ± 0.027(model) fm. Here the exp error includes PREX statistical and systematic errors, while the model error describes the uncertainty in RW from uncertainties in the surface thickness ? of the weak charge density. The weak radius is larger than the charge radius, implying a 'weak charge skin' where the surface region is relatively enriched in weak charges compared to (electromagnetic) charges. We extract the point neutron radius Rn = 5.751 ± 0.175 (exp) ± 0.026(model) ± 0.005(strange) fm, from RW. Here there is only a very small error (strange) from possible strange quark contributions. We find Rn to be slightly smaller than RW because of the nucleon's size. Finally, we find a neutron skin thickness of Rn-Rp = 0.302 ± 0.175 (exp) ± 0.026 (model) ± 0.005 (strange) fm, where Rp is the point proton radius.

  14. Tight coupling between soil moisture and the surface radiation budget in semiarid environments: Implications for

    E-Print Network [OSTI]

    Small, Eric

    . Therefore the available energy, Qa, is higher by 80 W mÃ?2 when the soil is wet. This change is 22 moist static energy. However, the intervals during which soil moisture is high and therefore Rn and QaTight coupling between soil moisture and the surface radiation budget in semiarid environments

  15. Mass Transportation on the Earth Ludovic Rifford

    E-Print Network [OSTI]

    Rifford, Ludovic

    Mass Transportation on the Earth Ludovic Rifford Universit´e Nice - Sophia Antipolis & Institut Mass Transportation on the Earth #12;The framework Let M be a smooth connected compact surface in Rn of the lengths of the curves (drawn on M) joining x to y. Ludovic Rifford Mass Transportation on the Earth #12

  16. IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. XX, NO. Y, MONTH Z 2004 1 Non-Linear Image Representation for Efficient

    E-Print Network [OSTI]

    Simoncelli, Eero

    is with the Department d' `Optica, Universitat de Val`encia, 46100 Burjas- sot, Val`encia, Spain (jesus.malo@uv.es, http. RN is with Instituto de ´Optica, CSIC, Spain. EPS is with Howard Hughes Medical Institute, Center

  17. Proceedings of the Work-in-Progress Session of the 20th IEEE Real-Time and Embedded Technology and Applications Symposium

    E-Print Network [OSTI]

    Ungerer, Theo

    for Software Systems #12;© Copyright 2014 Max Planck Institute for Software Systems. All rights reserved. The copyright of this collection is with the Max Planck Institute for Software Systems. The copyright, to discuss, and to network. Björn B. Brandenburg Max Planck Institute for Software Systems Kaiserslautern

  18. Nonanticipative duality, relaxations, and formulations for chance ...

    E-Print Network [OSTI]

    2015-03-05T23:59:59.000Z

    piI(x ? X i) ? 1 ? ?. } ,. (2) where S is a mixed-integer set (i.e., S ? Rn?r × Zr with 0 ? r ? n), Xi := X(?i), I(·) is the indicator function and pi is the probability mass ...

  19. Kandidatexjobb inom fysik Bjrn Cederstrm, bjorn@mi.physics.kth.se

    E-Print Network [OSTI]

    Haviland, David

    Kandidatexjobb inom fysik VT 2014 Björn Cederström, bjorn@mi.physics.kth.se (avgående kontaktpersonGoLite project #12;Tack! Mer information: http://www.mi.physics.kth.se/web/teaching_kand_exjobb.htm 2013-09-25 12

  20. Ris-M-2476 RELATIONSHIPS IN INDOOR/OUTDOOR AIR POLLUTION

    E-Print Network [OSTI]

    Risø-M-2476 RELATIONSHIPS IN INDOOR/OUTDOOR AIR POLLUTION Jørn Roed Abstract. Beryllium-7 a pollution episode, especially a reactor accident. The effect of operating a vacuum cleaner during the pollution episode and airing shortly after is also investigated. Earlier relevant literature is reviewed

  1. A MULTI-DIMENSIONAL OPTIMAL HARVESTING PROBLEM WITH MEASURE VALUED SOLUTIONS

    E-Print Network [OSTI]

    Bressan, Alberto

    a bounded connected open set RN , N 2, with smooth boundary. Denote by = (t, x) the density of fish at time t at the point x . In absence of fishing activity, we assume that the fish population evolves choice for the source term is g(x, ) = (x) h(x) - . Here h(x) denotes the maximum fish population

  2. Predicting Daily Net Radiation Using Minimum Climatological Data1

    E-Print Network [OSTI]

    Predicting Daily Net Radiation Using Minimum Climatological Data1 S. Irmak, M.ASCE2 ; A. Irmak3 ; J for predicting daily Rn have been widely used. However, when the paucity of detailed climatological data with National Weather Service climatological datasets that only record Tmax and Tmin on a regular basis. DOI: 10

  3. Production and counting of uncontained sources in the Sudbury Neutrino Observatory

    SciTech Connect (OSTI)

    Peeters, Simon J. M. [Pevensey II, Falmer, Brighton, BN1 9QH (United Kingdom)

    2011-04-27T23:59:59.000Z

    I describe production and distribution of uncontained sources of {sup 24}Na and {sup 222}Rn inside the Sudbury Neutrino Observatory (SNO). These unique sources provided a uniquely accurate calibration of the SNO detector of its response to neutrons, produced through photodisintegration of the deuterons in the heavy water target, and to low energy {beta}-{gamma} decays.

  4. Algorithms for Mumford Curves Ralph Morrison and Qingchun Ren

    E-Print Network [OSTI]

    Boyer, Edmond

    discuss specific methods and future work for hyperelliptic Mumford curves. 1. Introduction Curves over non geometry, which looks at the images in Rn of curves under coordinate-wise valuation, these are balanced complete with respect to a nontrivial non-archimedean valuation. Unless otherwise stated, | · | will denote

  5. STeam Injected Piston Engine Troels Hrding Pedersen Bjrn Kjellstrm

    E-Print Network [OSTI]

    STIPE STeam Injected Piston Engine Troels Hørding Pedersen Björn Kjellström Thomas Koch Erik Balck stempelmotor med dampindsprøjtning". English title: "Steam injected piston engine, a feasibility study ......................................................................................12 Stationary engines for decentralised CHP or industrial CHP

  6. LIMITE SEMI-CLASSIQUE DES EQUATIONS DE SCHRODINGERPOISSON

    E-Print Network [OSTI]

    Alazard, Thomas

    . Introduction On s'int´eresse, pour ]0, 1] et x Rn , `a l'analyse BKW des ´equations : itu + 2 2 u = Vext(t, x´eveloppement BKW des ´equations de Schr¨odinger non-lin´eaires d´elicate. 1 #12;N´eanmoins, on dispose de nombreux

  7. Institut for Konstruktion

    E-Print Network [OSTI]

    content in the biomass to electricity. · The Simple Cycle Gas Turbine plant has good potential. Brian Elmegaard og professor Bjørn Qvale (DTU) har været vejledere på projektet, desuden har har båret over med mig mens stormen rasede! Dette er anden udgave af rapporten. I forhold til første

  8. Pigment characteristics of the southern pea, Vigna sinensis

    E-Print Network [OSTI]

    Winzer, Jack Warren

    1959-01-01T23:59:59.000Z

    for the naturally occurr- ing Pigment e Ths retention of' the ns~mel colox of Eood. products d~g--processing hsa alwuva been the goal of t&s csxIning industx/? TG produce Rn sttructive pro duct y the c@xlxIcr . 'Bust retuin 38 much Qf the Grirginsl colox' exs...

  9. jltp manuscript No. (will be inserted by the editor)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (2009) 211" #12;2 a double cooling power and an improved efficiency due to the better thermal isolation-coherent Andreev current. We establish a thermal model by considering the thermal contribution due to the Andreev-state resistance RN is proportional to 1/T, where T is the single quasi-particule tunneling probability

  10. State of the College, 2 November, 2007 College of Geosciences, Texas A&M University

    E-Print Network [OSTI]

    , Dean Sustainable Growth after Reinvestment: Building on a Strong Foundation I would like to welcome all to build on the strong foundation laid by Reinvestment and focus on a sustainable development1 State of the College, 2 November, 2007 College of Geosciences, Texas A&M University Björn Kjerfve

  11. Integrated Dynamic Analysis of Floating Offshore Wind Turbines Bjrn Skaare*, Tor David Hanson*, Finn Gunnar Nielsen*, Rune Yttervik*, Anders Melchior Hansen**,

    E-Print Network [OSTI]

    Integrated Dynamic Analysis of Floating Offshore Wind Turbines Bjørn Skaare*, Tor David Hanson of floating wind turbines exposed to forces from wind, waves and current has been developed for Hydro Oil & Energy's floating wind turbine concept, HYWIND. Two existing, independent, computer program systems

  12. Volumes of certain loci of polynomials and their applicatoins

    E-Print Network [OSTI]

    Sethuraman, Swaminathan

    2010-01-16T23:59:59.000Z

    To prove that a polynomial is nonnegative on Rn, one can try to show that it is a sum of squares of polynomials (SOS). The latter problem is now known to be reducible to a semi-definite programming (SDP) computation that is much faster than...

  13. Global existence of reaction-diffusion equations over multiple domains

    E-Print Network [OSTI]

    Ryan, John Maurice-Car

    2006-04-12T23:59:59.000Z

    )=(uk(t, x))mk=1 is an unknown vector valued function and each u0k is zero outside ??(k), D = diag(dk)is an m Ã? m positive de?nite diagonal matrix, f : R Ã? RnÃ? Rm ? Rm, u0 is a componentwise nonnegative function, and each ?i...

  14. Two-electron mixed-valence complexes small molecule activation and photocatalytic hydrogen production

    E-Print Network [OSTI]

    Heyduk, Alan F. (Alan Frank), 1974-

    2001-01-01T23:59:59.000Z

    Two-electron mixed-valence complexes of rhodium may be supported by diphosphazane ligands (RN(PY2)2). Whereas diphosphazane ligands with strongly [pi]-acidic phosphine groups (Y = F, OCH2CF3) react with RhI starting materials ...

  15. Nonlinear Integer Programming

    E-Print Network [OSTI]

    2009-06-28T23:59:59.000Z

    A polynomial f ? Z[x] is said to be integer-convex on [l,u] ? Rn, if for any finite ...... the mixed-integer linear programs codes Cplex and Xpress-MP, in conjunction ...... Bonami, P., Cornuéjols, G., Lodi, A., Margot, F.: A feasibility pump for mixed ...

  16. Decision Diagrams: Fast and Flexible Support for Case Retrieval and Recommendation

    E-Print Network [OSTI]

    Bridge, Derek

    Ginty and Mr. James Reilly for making their Laptops and Cameras data available to us. #12;Location Bathrooms, Derek Bridge, and Nic Wilson University College Cork, Cork, Ireland rn1@cs.ucc.ie, d.bridge@cs.ucc.ie, n is any system that automatically constructs an index structure into the case base (e.g. the k-d trees

  17. Algebra Lineal Departamento de Matematicas

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    Cardona, Alexander

    ´Algebra Lineal Departamento de Matem´aticas Universidad de Los Andes Primer Semestre de 2007 Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 1 / 36 #12;Texto gu´ia: Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 2 / 36 #12;Contenidos 1 Geometr´ia en Rn, matrices y

  18. Algebra Lineal Departamento de Matematicas

    E-Print Network [OSTI]

    Cardona, Alexander

    ´Algebra Lineal Departamento de Matem´aticas Universidad de Los Andes Primer Semestre de 2007 Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 1 / 50 #12;Texto gu´ia: Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 2 / 50 #12;Contenidos 1 Geometr´ia en Rn, matrices y

  19. Algebra Lineal Departamento de Matematicas

    E-Print Network [OSTI]

    Cardona, Alexander

    ´Algebra Lineal Departamento de Matem´aticas Universidad de Los Andes Primer Semestre de 2007 Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 1 / 85 #12;Texto gu´ia: Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 2 / 85 #12;Contenidos 1 Geometr´ia en Rn, matrices y

  20. Algebra Lineal Departamento de Matematicas

    E-Print Network [OSTI]

    Cardona, Alexander

    ´Algebra Lineal Departamento de Matem´aticas Universidad de Los Andes Primer Semestre de 2007 Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 1 / 20 #12;Texto gu´ia: Universidad de Los Andes () ´Algebra Lineal Primer Semestre de 2007 2 / 20 #12;Contenidos 1 Geometr´ia en Rn, matrices y

  1. Collectivity in the light radon nuclei measured directly via Coulomb excitation

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    Gaffney, L P; Jenkins, D G; Andreyev, A N; Bender, M; Blazhev, A; Bree, N; Bruyneel, B; Butler, P A; Cocolios, T E; Davinson, T; Deacon, A N; De Witte, H; DiJulio, D; Diriken, J; Ekström, A; Fransen, Ch; Freeman, S J; Geibel, K; Grahn, T; Hadinia, B; Hass, M; Heenen, P -H; Hess, H; Huyse, M; Jakobsson, U; Kesteloot, N; Konki, J; Kröll, Th; Kumar, V; Ivanov, O; Martin-Haugh, S; Mücher, D; Orlandi, R; Pakarinen, J; Petts, A; Peura, P; Rahkila, P; Reiter, P; Scheck, M; Seidlitz, M; Singh, K; Smith, J F; Van de Walle, J; Van Duppen, P; Voulot, D; Wadsworth, R; Warr, N; Wenander, F; Wimmer, K; Wrzosek-Lipska, K; Zieli?ska, M

    2015-01-01T23:59:59.000Z

    Background: Shape coexistence in heavy nuclei poses a strong challenge to state-of-the-art nuclear models, where several competing shape minima are found close to the ground state. A classic region for investigating this phenomenon is in the region around $Z=82$ and the neutron mid-shell at $N=104$. Purpose: Evidence for shape coexistence has been inferred from $\\alpha$-decay measurements, laser spectroscopy and in-beam measurements. While the latter allow the pattern of excited states and rotational band structures to be mapped out, a detailed understanding of shape coexistence can only come from measurements of electromagnetic matrix elements. Method: Secondary, radioactive ion beams of $^{202}$Rn and $^{204}$Rn were studied by means of low-energy Coulomb excitation at the REX-ISOLDE facility in CERN. Results: The electric-quadrupole ($E2$) matrix element connecting the ground state and first-excited $2^{+}_{1}$ state was extracted for both $^{202}$Rn and $^{204}$Rn, corresponding to ${B(E2;2^{+}_{1} \\to 2^...

  2. SPECIAL SECTION doi:10.1111/evo.12139

    E-Print Network [OSTI]

    Bernatchez, Louis

    ): SEARCHING FOR GENE­ENVIRONMENT INTERACTIONS DRIVING LOCAL ADAPTATION Bourret Vincent,1,2 M´elanie Dionne,3 Matthew P. Kent,4 Sigbjørn Lien,4 and Louis Bernatchez1 1 D´epartement de Biologie, Institut de Biologie

  3. CHAPTER

    E-Print Network [OSTI]

    PRETEX (Halifax NS) #1 1054 1999 Mar 05 10:59:16

    2010-03-01T23:59:59.000Z

    Feb 16, 2007 ... be arbitrary vectors in Rn, and let c be an arbitrary real number. Then. T (x + y) = A(x + y) = Ax + Ay = T (x) + T (y),. T (cx) = A(cx) = cAx = cT(x).

  4. RIEMANNIAN TORI WITHOUT CONJUGATE POINTS ARE FLAT

    E-Print Network [OSTI]

    Ivanov, Sergei V.

    discussions. 1. Rational Foliations 1.1. We consider a Riemannian metric ~d on Rn which is a lift of some as D(x, v) = lim(expx tv - x)/t, t . The function D is correctly defined for almost all (x, v) UTRn

  5. Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools

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    Transfer Design Tools Arild Gustavsen1,* , Dariush Arasteh2 , Bjørn Petter Jelle3,4 , Charlie Curcija5-conductance window frames requires accurate simulation tools for product research and development. Based and develop recommendation for inclusion into the design fenestration tools. 3. Assess existing correlations

  6. CONTROL-RELEVANT SOFC MODELING AND MODEL EVALUATION Rambabu Kandepu, Lars Imsland, Bjarne A. Foss

    E-Print Network [OSTI]

    Foss, Bjarne A.

    Department of Engineering Cybernetics Christoph Stiller, Bjørn Thorud and Olav Bolland Department of Process of this article is to develop a {Rambabu.Kandepu,Lars.Imsland,Bjarne.A.Foss}@itk.ntnu.no {Christoph.Stiller. [4, 3], Thorud et al. [14], Stiller et al. [12] and Magistri et al. [10] all developed dis- tributed

  7. O.O A partitton of positive inte

    E-Print Network [OSTI]

    Garvan, Frank

    the number of p(rn)=O,whenncO). lT= the and fength parts of zr, the natural @ denotes ,w(n) Inl. I I say' He deflnea tfe ranlc of a partltton n to be tlhe number ro- Inl. (he left the rank of o undeflnred

  8. Universitat Tubingen Mathematisches Institut

    E-Print Network [OSTI]

    Tübingen, Universität

    · · · -1 1 1 -1 · · · · · · -1 1 Rn�n tritt bei Durchf¨uhrung der Gau�-Elimination mit¨atzliche Ph¨anomen tritt f¨ur x = -20 auf? Hinweis: In Matlab und octave wird die Darstellung der Zahlenwerte

  9. Equivalence of Reconstruction from the Absolute Value of the Frame Coefficients to a Sparse

    E-Print Network [OSTI]

    Maryland at College Park, University of

    transformations we obtained the following result Theorem 1.1: Let M : RN /{+1, -1} RM be defined by M(x) = {| x *Corresponding Author: Radu Balan is with Siemens Corporate Re- search,755 College Road East, Princeton NJ 08540, radu.balan@siemens.com. Pete Casazza and Dan Edidin are with Department of Mathematics, University

  10. Risks in DP Shuttle Tanker Offloading Dr Haibo Chen

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    Nørvåg, Kjetil

    Fishtailing Normal Yawing Hs = 5.5 m loading / 4.5 m connection #12;SIMO Simulation Work (1999 ­ 2003 safety and incidents, and Mr. Torbjørn Hals from Kongsberg Maritime for information on DP control system platform ­ Submerged offloading systems such as OLS, SAL, STL · Direct offloading: ­ Tandem/alongside from

  11. LORENTZIAN GEODESIC FLOWS BETWEEN HYPERSURFACES IN EUCLIDEAN SPACES

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    LORENTZIAN GEODESIC FLOWS BETWEEN HYPERSURFACES IN EUCLIDEAN SPACES JAMES DAMON VERY PRELIMINARY induced by a "Geodesic Flow"in an associated space There are several approaches to this question. One and their boundaries. Then, if t, 1 t 1, is a geodesic in Diff(Rn ) beginning at the identity, then t() (or t

  12. A new library of structured semidefinite programming instances

    E-Print Network [OSTI]

    2008-09-02T23:59:59.000Z

    Sep 2, 2008 ... in coding theory, computational geometry, graph theory and structural design. ... dimension. (Recall that a matrix ?-algebra (over R) is a subspace of Rn×n that ..... Using SeDuMi 1.02, a MATLAB toolbox for optimization.

  13. Green Power Marketing Abroad: Recent Experience and Trends

    E-Print Network [OSTI]

    , including 20% postconsumer waste #12;Acknowledgments This work was funded by the U.S. Department of Energy National Renewable Energy Laboratory Rolf Wüstenhagen University of St. Gallen (Switzerland) Jørn Aabakken National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard Golden

  14. RIS-M-2234 A NOTE ON THE RELATIONSHIP BETWEEN OUTDOOR AND INDOOR

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    POLLUTION OP OUTDOOR ORIGIN H.L. Gjørup and Jørn Roed Health Physics Department Abstract. Beryllium-7-descriotors; AIR POLLUTION, BERYLLIUM 7, BUILDINGS, INHALATION, IODINE 131, MEASURING METHODS, RADIATION DOSES from its counterpart in Danish dated Hay 1979. 2. GENERAL INFORMATION Any pollution of inhaled air

  15. Microlocal Analysis : a short introduction

    E-Print Network [OSTI]

    Plamen Stefanov

    2012-07-18T23:59:59.000Z

    One of the fundamental ideas of classical analysis is a thorough study of functions near a point, ... study is the wave front set WF(f ) ? T?Rn \\ 0 that we define below. Definition. The basic .... asymptotic expansion of the form p(x,?) ?. ?. ? j=0.

  16. J. Phys. III France 2 (19g2) 13gl-1398 AUGUST 1902, PAGE 1391 Classification

    E-Print Network [OSTI]

    Boyer, Edmond

    metal carbide or nitride clusters in a BCN-network was achieved by a combination of rf sputtering from) Abstract N-Trimetliylbcrazine has been used as precursor to deposit RN; BCN:H and metal-containing BCN N-trimethylbc- razine/Ar mixtures. The formation of metal-containing BCN:H films with refractory

  17. February 13, 2008 Virtualized Environments for the Harness High Performance Computing Workbench 1/17 Virtualized Environments for the Harness

    E-Print Network [OSTI]

    Engelmann, Christian

    February 13, 2008 Virtualized Environments for the Harness High Performance Computing Workbench 1/17 Virtualized Environments for the Harness High Performance Computing Workbench Björn Könning1,2, Christian Virtualized Environments for the Harness High Performance Computing Workbench 4/17 Harness HPC Workbench

  18. DIFFUSION BY OPTIMAL TRANSPORT IN THE HEISENBERG NICOLAS JUILLET

    E-Print Network [OSTI]

    Boyer, Edmond

    elementary computations. It makes of Hn one of the spaces aimed by some theory on metric spaces (see e.g. [12] for geometric measure theory, [19] for conformal geometry, [6] for embedding problems). This paper is devoted equation are densities of measures describing a special curve on P2(Rn ) and justify it at the formal level

  19. ON EXISTENCE AND UNIQUENESS IN A FREE BOUNDARY ...

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    2002-10-24T23:59:59.000Z

    consists of finding a nonnegative continuous function u in QT = Rn ×(0,T), ...... (t0 ? ?, t0 + ?) because of everywhere density of R and continuity of |?w?(x; t)| in ... the solution u is of parabolic Hölder class H2+?(?? QT ) (see G. Lieberman's book .... In Free boundary problems, theory and applications (Zakopane, 1995); ...

  20. MA699: Stochastic Taylor expansions and heat kernel asymptotics

    E-Print Network [OSTI]

    2011-01-17T23:59:59.000Z

    Jan 17, 2011 ... ential equations we refer to the book by Stroock and Varadhan [41], where the proofs of ... 1In probability theory, it is common to work with the space of ... Proposition 2.3 If f : Rn ? R is a smooth function and (Xx0 ...... Thus, from the inverse Fourier transform formula, the density of ?t with respect to the.