Sample records for br ant-eden ald

  1. LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 3400, U.S.MajorMarketsNov-14 Dec-14Has|Issues L EONARDO

  2. LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 3400, U.S.MajorMarketsNov-14 Dec-14Has|Issues L EONARDO81 § ¨

  3. LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 3400, U.S.MajorMarketsNov-14 Dec-14Has|Issues L EONARDO81 §

  4. Sandia National Laboratories: ALD

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

    ALD Combining 'Tinkertoy' Materials with Solar Cells for Increased Photovoltaic Efficiency On December 4, 2014, in Energy, Materials Science, News, News & Events, Photovoltaic,...

  5. ALDS 1980 panel review

    SciTech Connect (OSTI)

    Hall, D. L. [ed.] [ed.

    1981-11-01T23:59:59.000Z

    The overall goal of PNL (Pacific Northwest Laboratory) Applied Mathematical Sciences Research is development of a DOE (Department of Energy) capability for Analysis of Large Data Sets (ALDS) and transfer of this capability to other DOE laboratories and contractors. This capability is needed to satisfy DOE's increasing requirements for handling and analyzing large volumes of diverse energy and environmental data. The integrated statistics and computer science research includes the development of improved methodologies in data definition, data management, data analysis, and visual display. The purpose of this document is three-fold. First, the document is the permanent record of the ALDS 1979 panel review. Second, the document provides the PNL staff with a benchmark of where we were at the end of the second year of ALDS. Third, the document is available to laboratories, universities, and DOE headquarters as detailed description of the ALDS project, as well as an example of the new direction of AMS-funded research.

  6. br Owner br Facility br Type br Capacity br MW br Commercial...

    Open Energy Info (EERE)

    Facility br Type br Capacity br MW br Commercial br Online br Date br Geothermal br Area br Geothermal br Region Coordinates Ahuachapan Geothermal Power Plant LaGeo SA de CV Single...

  7. ald na stali: Topics by E-print Network

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

    Summary: (Royal Society of Chemistry, 2009) 12;ALD PRECURSORS FOR NON-METALS 8 oxygen nitrogen fluorine, carbon deposited as pure, single elements ALD films have been made...

  8. Chapter 6.24 Picosun Atomic Layer Deposition (ALD)

    E-Print Network [OSTI]

    Healy, Kevin Edward

    by the ALD could be used for diffusion barriers and similar applications. 2.0 Materials Controls: Source/s used in the ALD machine contains the desired metal for deposition. This metal is bonded)3 is precursors used to deposit aluminum oxide. 4.5.2 TTIP: Titanium Tetrakis Isopropoxide, which supplies Ti

  9. Harvard University Atomic Layer Deposition (ALD): An Enabler

    E-Print Network [OSTI]

    Deposition (CVD) One or more gases or vapors react to form a solid product Reaction started by heat mixing 2 vapors plasma Solid product can be a film particle nanowire nanotube precursor vapors byproduct vapors University Coatings on the Outside of Particles ALD AlN coating ZnS particles Used in electroluminescent back

  10. Novel Reactor Design and Metrology Study for Tungsten ALD process

    E-Print Network [OSTI]

    Rubloff, Gary W.

    species Viscous flow condition Short gas residence time Fast gas switching Reactant + carrier gas Multiple Operation Modes Exposure Purge Small reactor volume Throttle Valve 5 torr 10-5 Torr carrier gas 5 torr 10Novel Reactor Design and Metrology Study for Tungsten ALD process Laurent Henn-Lecordier, Wei Lei

  11. Chapter 6.25 Cambridge Fiji F200 Plasma ALD

    E-Print Network [OSTI]

    Healy, Kevin Edward

    system supports metal ALD primarily and has a remote inductively coupled plasma source to allow for low to keep electromagnetically sensitive devices such as cell phones away from the ICP coil. 4.2 Heating 4.2.1 Heater : The PEALD system includes several heating elements to bring various components to temperature

  12. Impact of ALD Coating on Mn-rich Cathode Materials (Presentation)

    SciTech Connect (OSTI)

    Santhanagopalan, S.

    2013-06-01T23:59:59.000Z

    LG Chem Power Inc. (LGCPI) and NREL have collaborated to demonstrate the scalability of the atomic layer deposition (ALD) coating process over the last 6 months, and the benefits of ALD coatings for long-term cycling and calendar life are being quantified. The objectives of this work are two-fold: 1) to evaluate the scalability of the process to coat LGCPI cathodes with alumina using the ALD technique, and 2) to demonstrate improvements in rate capability and life of ALD-coated LGCPI electrodes. NREL received samples of baseline material to be coated from LGCPI. NREL carried out ALD coating of the samples with help from a subcontractor, ALD Nanosolutions. NREL fabricated cells from those samples for quick screening and feedback to ALD Nanosolutions. LGCPI is currently fabricating larger-format cells for further evaluation.

  13. ALD Vacuum Technologies GmbH | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpenALD Vacuum Technologies

  14. Final Report: Novel ALD-Coated Nanoparticle Anodes for Enhanced Performance Lithium-Ion Batteries

    SciTech Connect (OSTI)

    Groner, Markus

    2009-04-16T23:59:59.000Z

    The Phase I effort is described in detail in the Phase I report given below. The key accomplishments of the Phase I project were (1) the demonstration of high stability LiCoO2 cathodes using ALD-coated LiCoO2 particles, as well as on ALD-coated LiCoO2 electrodes and (2) the demonstration of high stability of graphite anodes using ALD-coated graphite electrodes.

  15. From the Director: New ALDs in LCLS, SSRL and PPA and

    E-Print Network [OSTI]

    Wechsler, Risa H.

    From the Director: New ALDs in LCLS, SSRL and PPA and a new Directorate in the Making Wednesday leadership to the laboratory that is delivering success not only in LCLS, but also in the LCLS Ultrafast for PPA. Effective July 1, Jo Stohr will take over from Dale Knutson as the LCLS ALD. Jo came to SLAC

  16. BulletinVol. 64 -No. 1 January 8, 2010 BNL's ALD Stokes

    E-Print Network [OSTI]

    Ohta, Shigemi

    the BulletinVol. 64 - No. 1 January 8, 2010 BNL's ALD Stokes Heads NYS Energy Policy Institute New building on site has at least one mechanical equip- ment room -- many buildings have two or three

  17. ALD Functionalized Nanoporous Gold: Thermal Stability, Mechanical Properties, and Catalytic Activity

    SciTech Connect (OSTI)

    Biener, M M; Biener, J; Wichmann, A; Wittstock, A; Baumann, T F; Baeumer, M; Hamza, A V

    2011-03-24T23:59:59.000Z

    Nanoporous metals have many technologically promising applications but their tendency to coarsen limits their long-term stability and excludes high temperature applications. Here, we demonstrate that atomic layer deposition (ALD) can be used to stabilize and functionalize nanoporous metals. Specifically, we studied the effect of nanometer-thick alumina and titania ALD films on thermal stability, mechanical properties, and catalytic activity of nanoporous gold (np-Au). Our results demonstrate that even only one-nm-thick oxide films can stabilize the nanoscale morphology of np-Au up to 1000 C, while simultaneously making the material stronger and stiffer. The catalytic activity of np-Au can be drastically increased by TiO{sub 2} ALD coatings. Our results open the door to high temperature sensor, actuator, and catalysis applications and functionalized electrodes for energy storage and harvesting applications.

  18. ALD of Al2O3 for Highly Improved Performance in Li-Ion Batteries

    SciTech Connect (OSTI)

    Dillon, A.; Jung, Y. S.; Ban, C.; Riley, L.; Cavanagh, A.; Yan, Y.; George, S.; Lee, S. H.

    2012-01-01T23:59:59.000Z

    Significant advances in energy density, rate capability and safety will be required for the implementation of Li-ion batteries in next generation electric vehicles. We have demonstrated atomic layer deposition (ALD) as a promising method to enable superior cycling performance for a vast variety of battery electrodes. The electrodes range from already demonstrated commercial technologies (cycled under extreme conditions) to new materials that could eventually lead to batteries with higher energy densities. For example, an Al2O3 ALD coating with a thickness of ~ 8 A was able to stabilize the cycling of unexplored MoO3 nanoparticle anodes with a high volume expansion. The ALD coating enabled stable cycling at C/2 with a capacity of ~ 900 mAh/g. Furthermore, rate capability studies showed the ALD-coated electrode maintained a capacity of 600 mAh/g at 5C. For uncoated electrodes it was only possible to observe stable cycling at C/10. Also, we recently reported that a thin ALD Al2O3 coating with a thickness of ~5 A can enable natural graphite (NG) electrodes to exhibit remarkably durable cycling at 50 degrees C. The ALD-coated NG electrodes displayed a 98% capacity retention after 200 charge-discharge cycles. In contrast, bare NG showed a rapid decay. Additionally, Al2O3 ALD films with a thickness of 2 to 4 A have been shown to allow LiCoO2 to exhibit 89% capacity retention after 120 charge-discharge cycles performed up to 4.5 V vs Li/Li+. Bare LiCoO2 rapidly deteriorated in the first few cycles. The capacity fade is likely caused by oxidative decomposition of the electrolyte at higher potentials or perhaps cobalt dissolution. Interestingly, we have recently fabricated full cells of NG and LiCoO2 where we coated both electrodes, one or the other electrode as well as neither electrode. In creating these full cells, we observed some surprising results that lead us to obtain a greater understanding of the ALD coatings. We have also recently coated a binder free LiNi0.04Mn0.04Co02O2 electrode containing 5 wt% single-walled carbon nanotubes as the conductive additive and demonstrated both high rate capability as well as the ability to cycle the cathode to 5 V vrs. Li/Li+. Finally, we coated a Celgard (TM) separator and enabled stable cycling in a high dielectric electrolyte. These results will be presented in detail.

  19. ALD System UCLA Nanoelectronic Facility Fiji Thermal and Plasma Atomic Layer

    E-Print Network [OSTI]

    Jalali. Bahram

    not be heated above that temperature. Center heater maximum temperature is 400o C, while outer heater should temperature of the chemical used. Maximum for the precursor heater jacket is 200o C. #12;ALD System UCLA steps shown in Figure 1. Step. 1: Put in a sample which is hydroxylated from exposure to air, oxygen

  20. http://tinyurl.com/ald-michigan For more information, please email Dr. Khaled Mnaymneh at kmnay@lnf.umich.edu

    E-Print Network [OSTI]

    Daly, Samantha

    for numerous opportunities in the fields of semiconductor devices and memory, energy conversion and storage, and quantum confinement structures for energy conversion and storage devices. Atomic Layer Deposition (ALD aspect ratios (above 2000:1), allowing for 3-dimensional engineering of complex nanostructured

  1. Cite this: RSC Advances, 2013, 3, Cathodic ALD V2O5 thin films for high-rate

    E-Print Network [OSTI]

    Ghodssi, Reza

    storage come into sight. Introduction Electrochemical energy storage devices with simultaneously high nanostructures.5 As a result, there has been fast growing interest in using ALD materials for energy storage energy storage3 Received 23rd November 2012, Accepted 21st January 2013 DOI: 10.1039/c3ra23031g www

  2. AlGaN/GaN MIS-HEMT Gate Structure Improvement Using Al2O3 Deposited by Plasma-Enhanced ALD

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    AlGaN/GaN MIS-HEMT Gate Structure Improvement Using Al2O3 Deposited by Plasma-Enhanced ALD R(0)438782894 Abstract - In this work we evaluate the influence of the Al2O3 ALD deposition technique on AlGaN/GaN MIS drastically reduced with a measured average of 1e-11 A/mm for a drain-source bias of 5V. 1. Introduction AlGaN

  3. Jatropha BR | Open Energy Information

    Open Energy Info (EERE)

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

  4. Nuclear Dependence of the Production of \\Upsilon Resonances at 800 GeV D. M. Alde, H. W. Baer, T. A. Carey, G. T. Garvey, A. Klein,

    E-Print Network [OSTI]

    , particularly in connection with J=/ production in high­energy heavy ion collisions. 1\\Gamma6 Nuclear dependenceNuclear Dependence of the Production of \\Upsilon Resonances at 800 GeV D. M. Alde, H. W. Baer, T. A. Barlett, G. W. Hoffmann University of Texas, Austin, Texas 78712 1 #12; Abstract The yields of the 1S

  5. JOB DESCRIPTION Requisition ID 4206BR

    E-Print Network [OSTI]

    general office and administrative policies. May supervise lower level staff members. Schedules in accordance with established procedures. Performs research and/or statistical analyses and assistsJOB DESCRIPTION Requisition ID 4206BR ASU Job Title Administrative Secretary Job Title

  6. 2012 NNIN ALD Symposium ALD Staff Review

    E-Print Network [OSTI]

    ; Remote Assisted - $165 · Rates ­ Non-academic ­Regular - $120/hr; Assisted use - $165/hr; Remote Assisted Reaction Unit #12;Problems (cont.) · Hot lid...melts things. ­ Put heat shield on hinge (custom - drawing available) #12;Heat Shield Hinge #12;#12;#12;Problems (cont.) · Hot lid...melts things. ­ Put heat shield

  7. 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*.

  8. CURRICULUM VITAE Julie Br ig ham -Gr ette

    E-Print Network [OSTI]

    Schweik, Charles M.

    CURRICULUM VITAE Julie Br ig ham -Gr ette Address: Department of Geosciences, University of Massachusetts, Box 35820, Amherst, MA 01003-5820, USA Born: Albion, Michigan, 11 Jan 1955 Office phone: (413

  9. Ca2+-Doped CeBr3 Scintillating Materials

    SciTech Connect (OSTI)

    Guss, Paul [NSTec; Foster, Michael E. [SNL; Wong, Bryan M. [SNL; Doty, F. Patrick [SNL; Shah, Kanai [RMD; Squillante, Michael R. [RMD; Shirwadkar, Urmila [RMD; Hawrami, Rastgo [RMD; Tower, Josh [RMD; Yuan, Ding [NSTec

    2014-01-21T23:59:59.000Z

    Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide, their commercial availability and application are limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. This investigation employed aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was used as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were studied using the density functional theory within the generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

  10. Matrix isolation and computational study of isodifluorodibromomethane (F{sub 2}CBr-Br): A route to Br{sub 2} formation in CF{sub 2}Br{sub 2} photolysis

    SciTech Connect (OSTI)

    George, Lisa; Kalume, Aimable; Reid, Scott A. [Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 (United States); El-Khoury, Patrick Z.; Tarnovsky, Alexander [Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403 (United States)

    2010-02-28T23:59:59.000Z

    The photolysis products of dibromodifluoromethane (CF{sub 2}Br{sub 2}) were characterized by matrix isolation infrared and UV/Visible spectroscopy, supported by ab initio calculations. Photolysis at wavelengths of 240 and 266 nm of CF{sub 2}Br{sub 2}:Ar samples ({approx}1:5000) held at {approx}5 K yielded iso-CF{sub 2}Br{sub 2} (F{sub 2}CBrBr), a weakly bound isomer of CF{sub 2}Br{sub 2}, which is characterized here for the first time. The observed infrared and UV/Visible absorptions of iso-CF{sub 2}Br{sub 2} are in excellent agreement with computational predictions at the B3LYP/aug-cc-pVTZ level. Single point energy calculations at the CCSD(T)/aug-cc-pVDZ level on the B3LYP optimized geometries suggest that the isoform is a minimum on the CF{sub 2}Br{sub 2} potential energy surface, lying some 55 kcal/mol above the CF{sub 2}Br{sub 2} ground state. The energies of various stationary points on the CF{sub 2}Br{sub 2} potential energy surface were characterized computationally; taken with our experimental results, these show that iso-CF{sub 2}Br{sub 2} is an intermediate in the Br+CF{sub 2}Br{yields}CF{sub 2}+Br{sub 2} reaction. The photochemistry of the isoform was also investigated; excitation into the intense 359 nm absorption band resulted in isomerization to CF{sub 2}Br{sub 2}. Our results are discussed in view of the rich literature on the gas-phase photochemistry of CF{sub 2}Br{sub 2}, particularly with respect to the existence of a roaming atom pathway leading to molecular products.

  11. From single-molecule magnetism to long-range ferromagnetism in Hpyr[Fe17O16(OH)12(py)12Br4]Br4

    E-Print Network [OSTI]

    Ryan, Dominic

    and intermolecular engineering of mo- lecular magnets can lead to the observation of long-range magnetic orderingFrom single-molecule magnetism to long-range ferromagnetism in Hpyr[Fe17O16(OH)12(py)12Br4]Br4 C magnet Hpyr Fe17O16 OH 12 py 12Br4 Br4 "Fe17" has a well-defined cluster spin ground state of S=35

  12. CsBr/GaN Heterojunction Photoelectron Source

    SciTech Connect (OSTI)

    Maldonado, J.R.; /Stanford U., Elect. Eng. Dept.; Liu, Z.; Sun, Y.; /SLAC, SSRL; Schuetter, S.; /Wisconsin U., Madison; Pianetta, P.; /SLAC, SSRL; Pease, R.F.W.; /Stanford U., Elect. Eng. Dept.

    2009-04-30T23:59:59.000Z

    Experimental results on a new CsBr/GaN heterojunction photocathode structure are presented. The results indicate a fourfold improvement in photoyield relative to CsBr/Cr photocathodes. A model is presented based on intraband states in CsBr and electron injection from the GaN (with 1% addition of indium) substrate to explain the observed photoyield enhancement. The photocathode lifetime at high current density (>40 A/cm{sup 2}) is limited by laser heating of the small illuminated area. Calculations are presented for sapphire and diamond substrates, indicating a factor of 20 reduction in temperature for the latter. The results are encouraging for the realization of a high photoyield photocathode operating at high current density with long lifetime.

  13. Refractive indexes of aqueous LiBr solutions

    SciTech Connect (OSTI)

    Zaltash, A.; Ally, M.R. (Energy Div., Oak Ridge National Lab., Oak Ridge, TN (US))

    1992-01-01T23:59:59.000Z

    This paper reports that the refractive indexes of water-lithium bromide solutions were measured in the temperature range from 5.0 to 80.0 {degrees}C and in the range of salt concentrations from 0.00 (deionized water) to 58.90 mass %. An electrolyte solution of LlBr in water was chosen for study because of its wide use as an absorption chiller fluid. The concentration of LlBr aqueous solution was determined by argentimetric titration using tetrabromofluoresceln (Eosin) as an adsorption indicator and was checked at a few discrete concentrations (10.06, 20.30, and 58.90 mass % LlBr) against the values obtained by gravimetric analysis. The deviation between values obtained using these two techniques was found to be less than 0.27 mass %. The refractive indexes are shown to represent a reliable and convenient way of measuring the concentration of salt (or water) in LlBr solutions with accuracies of {plus minus}0.3 mass % salt.

  14. Delayed neutron energy spectra of {sup 87}Br, {sup 88}Br, {sup 89}Br, {sup 90}Br, {sup 137}I, {sup 138}I, {sup 139}I, and {sup 186}Te

    SciTech Connect (OSTI)

    Greenwood, R.C.; Watts, K.D. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States). Idaho National Engineering Lab.

    1997-07-01T23:59:59.000Z

    In prior publications, the authors reported measurements of the energy spectra of delayed neutrons for the isotope-separated fission product precursors {sup 93}Rb, {sup 94}Rb, {sup 95}Rb, {sup 96}Rb, {sup 97}Rb, {sup 143}Cs, {sup 144}Cs, and {sup 145}Cs. Such studies of delayed neutron energy spectra have important applications in reactor physics, primarily relating to the fundamental role played by delayed neutrons in the kinetic behavior of nuclear reactors. Measurement of the energy spectra of delayed neutrons for the isotope-separated, fission product precursors {sup 87}Br, {sup 88}Br, {sup 89}Br, {sup 90}Br, {sup 137}I, {sup 138}I, {sup 139}I, and {sup 136}Te are reported for an energy range up to 1,213 keV and with lower cutoff energies of 11.1, 11.1, 29.9, 48.9, 14.2, 23.3, 29.9, and 48.9 keV, respectively. These data were obtained at the TRISTAN Isotope Separation On-Line facility using H{sub 2} and CH{sub 4} gas-filled proportional counters. The data for each of the bromine, iodine, and tellurium isotopes show good qualitative agreement with the published {sup 3}He ionization chamber data at energies above {approximately}200 keV. In addition, they provide definitive spectral information down to their respective cut-off energies.

  15. ALD Nanosolutions | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpen

  16. Longpath DOAS observations of surface BrO at Summit, Greenland

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    surface BrO at Summit, Greenland J. Stutz 1 , J. L. Thomasimpact of BrO at Summit, Greenland in 2007 and 2008, Atmos.of peroxy radicals at Summit, Greenland during summer 2003,

  17. MOLECULAR BEAM STUDIES OF UNIMOLECULAR REACTIONS: Cl, F + C2H3Br

    E-Print Network [OSTI]

    Buss, Richard J.

    2011-01-01T23:59:59.000Z

    C1, F + C H Br Richard J. Buss, Michael J. Coggio1a, andF + C H3Br Z Richard J. Buss, Michael J. Coggiola and Yuan

  18. Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption...

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

    Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP Applications, April 2005 Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP...

  19. The decay of a new nuclide /sup 71/Br

    E-Print Network [OSTI]

    Hagberg, E; Evans, H C; Hardy, J C; Koslowsky, V T; Schmeing, H; Schrewe, U J; Sharma, K S

    1981-01-01T23:59:59.000Z

    The decay of mass-separated samples of the previously unknown nuclide /sup 71/Br have been investigated by means of the Chalk River on-line isotope separator. Eleven gamma -transitions were assigned to the decay of this nuclide and its half-life was measured to be 21.4+or-0.6 s. A simple decay scheme for /sup 71/Br has been constructed incorporating six levels in its daughter, /sup 71/Se. The half-life of the first excited state in /sup 71/Se was measured to be 5.5+or-1.0 mu s and the transition from this state to the ground state was found to be highly converted. Systematic trends in the level schemes of /sup 67 /Zn, /sup 69/Ge and /sup 71/Se are investigated. (16 refs).

  20. Roberto de Beauclair Seixas tron@lncc.br

    E-Print Network [OSTI]

    DICOM 3 Roberto de Beauclair Seixas tron@lncc.br #12;Imagens Médicas - Raios X #12;Imagens Médicas - CT Tomoscan AV da Philips #12;Imagens Médicas - CT Banco de detetores Tubo de raios-X Tubo de Raio X 120 a 150 K Volts 50 a 100 detetores #12;Imagens Médicas - CT Hounsfield Units (HU) ar -1000 gordura

  1. Equipe 2004/2005 Antonio Roberto Formaggio (formag@ltid.inpe.br) Coord.

    E-Print Network [OSTI]

    ://www.dpi.inpe.br/spring/) Referncia - Imagens GeoCover (https://zulu.ssc.nasa.gov/mrsid/mrsid.pl) Limites municipais Atlas (IBGE/INPE) (http://www.dpi.inpe.br/spring/portugues/banco.html) #12;Imagens de Satlite Seleo Catlogo de Imagens CBERS/Landsat (http://www.dgi.inpe.br) #12;Imagens de Satlite Pedido e aquisio Registro

  2. Improved Growth Methods for LaBr3 Scintillation Radiation Detectors

    SciTech Connect (OSTI)

    McGregor, Douglas S

    2011-05-01T23:59:59.000Z

    The objective is to develop advanced materials for deployment as high-resolution gamma ray detectors. Both LaBr3 and CeBr3 are advanced scintillation materials, and will be studied in this research. Prototype devices, in collaboration Sandia National Laboratories, will be demonstrated along with recommendations for mass production and deployment. It is anticipated that improved methods of crystal growth will yield larger single crystals of LaBr3 for deployable room-temperature operated gamma radiation spectrometers. The growth methods will be characterized. The LaBr3 and CeBr3 scintillation crystals will be characterized for light yield, spectral resolution, and for hardness.

  3. Lifetimes of N = Z Nuclei As-66 and Br-70

    E-Print Network [OSTI]

    Burch, R. H.; Gagliardi, Carl A.; Tribble, Robert E.

    1988-01-01T23:59:59.000Z

    PHYSICAL REVIEW C VOLUME 38, NUMBER 3 Lifetimes of N =Z nuclei As and Br SEPTEMBER 1988 R. H. Burch Jr., C. A. Gagliardi, and R. E. Tribble Cyclotron Institute, Texas A&M University, College Station, Texas 77843 (Received 5 May 1988) We have... of the target wheel, the detector telescope, and the detector shielding. 1988 The American Physical Society 1366 R. H. BURCH, JR., C. A. GAGLIARDI, AND R. E. TRIBBLE 38 indexer with an antibacklash circuit drove the stepping motor. After each irradiation...

  4. Photoluminescence and photostimulated luminescence of oxygen impurities in CsBr

    SciTech Connect (OSTI)

    Appleby, G. A.; Zimmermann, J.; Hesse, S.; Seggern, H. von [Electronic Materials Division, Institute of Materials Science, Darmstadt University of Technology, 64287 Darmstadt (Germany)

    2011-01-01T23:59:59.000Z

    Oxygen impurities have been detected in undoped CsBr by photoluminescence (PL) spectroscopy and their contribution to photostimulated luminescence (PSL) properties of powdered CsBr is discussed. When excited at 200 nm, PL is observed from CsBr which consists of three separate emission peaks. The intrinsic luminescence of CsBr at 379 nm is accompanied by two emission peaks at 395 and 460 nm which arise from oxygen impurities, the latter of which is also PSL active following x-irradiation. Sintering of CsBr with the reducing agent NH{sub 4}Br removes the oxygen impurities so that the 395 and 460 nm emissions are no longer detectable, and subsequently the PSL emission is significantly reduced. PSL storage time measurements of these materials show that oxygen impurities favorably increase both the PSL sensitivity and radiation induced charge-center stability in CsBr:Eu{sup 2+}. The oxygen impurities and their associated luminescence properties can be reintroduced to the CsBr matrix with a controlled concentration by doping with CsOH and then subsequently sintering the resultant CsBr:OH{sup -} with NH{sub 4}Br, which in this system reduces the OH{sup -} centers to O{sup 2-}.

  5. Babcock and Wilcox BR-100 100-ton rail/barge spent fuel shipping cask

    SciTech Connect (OSTI)

    none,

    1990-02-01T23:59:59.000Z

    This Preliminary Design Report (PDR) provides a detailed description of the design, analyses, and testing programs for the BR-100 cask. The BR-100 is a Type B(U) cask designed for transport by rail or barge. This report presents the preliminary analyses and tests which have been performed for the BR-100 and outlines the confirmatory analyses and tests which will be performed.

  6. Solvent dependent branching between C-I and C-Br bond cleavage following 266 nm excitation of CH{sub 2}BrI

    SciTech Connect (OSTI)

    Anderson, Christopher P.; Spears, Kenneth G.; Wilson, Kaitlynn R.; Sension, Roseanne J. [Department of Chemistry and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)] [Department of Chemistry and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2013-11-21T23:59:59.000Z

    It is well known that ultraviolet photoexcitation of halomethanes results in halogen-carbon bond cleavage. Each halogen-carbon bond has a dominant ultraviolet (UV) absorption that promotes an electron from a nonbonding halogen orbital (n{sub X}) to a carbon-halogen antibonding orbital (?*{sub C-X}). UV absorption into specific transitions in the gas phase results primarily in selective cleavage of the corresponding carbon-halogen bond. In the present work, broadband ultrafast UV-visible transient absorption studies of CH{sub 2}BrI reveal a more complex photochemistry in solution. Transient absorption spectra are reported spanning the range from 275 nm to 750 nm and 300 fs to 3 ns following excitation of CH{sub 2}BrI at 266 nm in acetonitrile, 2-butanol, and cyclohexane. Channels involving formation of CH{sub 2}Br + I radical pairs, iso-CH{sub 2}Br-I, and iso-CH{sub 2}I-Br are identified. The solvent environment has a significant influence on the branching ratios, and on the formation and stability of iso-CH{sub 2}Br-I. Both iso-CH{sub 2}Br-I and iso-CH{sub 2}I-Br are observed in cyclohexane with a ratio of ?2.8:1. In acetonitrile this ratio is 7:1 or larger. The observation of formation of iso-CH{sub 2}I-Br photoproduct as well as iso-CH{sub 2}Br-I following 266 nm excitation is a novel result that suggests complexity in the dissociation mechanism. We also report a solvent and concentration dependent lifetime of iso-CH{sub 2}Br-I. At low concentrations the lifetime is >4 ns in acetonitrile, 1.9 ns in 2-butanol and ?1.4 ns in cyclohexane. These lifetimes decrease with higher initial concentrations of CH{sub 2}BrI. The concentration dependence highlights the role that intermolecular interactions can play in the quenching of unstable isomers of dihalomethanes.

  7. Optical characteristics of a HgBr excilamp

    SciTech Connect (OSTI)

    Malinina, A A; Malinin, A N; Shuaibov, A K [Uzhgorod National University, Uzhgorod (Ukraine)

    2013-08-31T23:59:59.000Z

    Optical characteristics of a coaxial HgBr excilamp on multicomponent mercury dibromide vapour mixtures with helium, nitrogen and sulfur hexafluoride are investigated under pumping by a pulse-periodic barrier discharge. Stable excilamp operation was demonstrated at a pump pulse repetition rate of 3 9 kHz. The component composition of the working system was determined, which provides a maximal average and pulsed specific radiation power of 48.8 mW cm{sup -3} and 40.6 W cm{sup -3}, respectively, at the efficiency of 7.3 % in the blue-green spectral range with the maximal radiation intensity at the wavelength of 502 nm. The reduction in the radiation power after 2.5 10{sup 6} shots is 5 %. Interpretation is given for the results of optimisation of excilamp characteristics. (optical radiation sources)

  8. Apparatus for improving the working time of the XeBr laser

    DOE Patents [OSTI]

    Sander, Robert K. (Los Alamos, MN); Balog, George (Los Alamos, MN); Seegmiller, Emma T. (Los Alamos, MN)

    1982-01-01T23:59:59.000Z

    In XeBr lasers which make use of HBr as the source of bromine, it has been found that the working life of the laser is limited because of dissociation of the HBr in the lasing region to form H.sub.2 and Br.sub.2. Accordingly, apparatus is disclosed for substantially improving the working time of the XeBr laser wherein means are provided for recombining H.sub.2 and Br.sub.2 into HBr and for continuously circulating the gaseous working medium from the lasing region through the recombination region. BACKGROUND OF THE INVENTION

  9. Results for aliovalent doping of CeBr{sub 3} with Ca{sup 2+}

    SciTech Connect (OSTI)

    Guss, Paul, E-mail: gusspp@nv.doe.gov [Remote Sensing Laboratory Nellis, P. O. Box 98521, Las Vegas, Nevada 89193-8521 (United States); Foster, Michael E.; Wong, Bryan M.; Patrick Doty, F. [Materials Chemistry Department, Sandia National Laboratories, California, P. O. Box 969, Livermore, California 94551-0969 (United States); Shah, Kanai; Squillante, Michael R.; Shirwadkar, Urmila; Hawrami, Rastgo; Tower, Joshua [Radiation Monitoring Devices, Inc., 44 Hunt Street, Watertown, Massachusetts 02472 (United States); Yuan, Ding [National Security Technologies, LLC, Los Alamos Operations, P. O. Box 809, Los Alamos, New Mexico 87544-0809 (United States)

    2014-01-21T23:59:59.000Z

    Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr{sub 3}) and cerium-activated lanthanum tribromide, their commercial availability and application are limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. This investigation employed aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca{sup 2+}) was used as a dopant to strengthen CeBr{sub 3} without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca{sup 2+} dopant were grown, i.e., 1.9% of the CeBr{sub 3} molecules were replaced by CaBr{sub 2} molecules, to match our target replacement of 1 out of 54 cerium atoms be replaced by a calcium atom. Precisely the mixture was composed of 2.26 g of CaBr{sub 2} added to 222.14 g of CeBr{sub 3}. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca{sup 2+}-doped CeBr{sub 3} exhibited little or no change in the peak fluorescence emission for 371?nm optical excitation for CeBr{sub 3}. The structural, electronic, and optical properties of CeBr{sub 3} crystals were studied using the density functional theory within the generalized gradient approximation. Calculated lattice parameters are in agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr{sub 3}, including the dielectric function, were calculated.

  10. Singlet-Triplet Splittings in CX2 (X ) F, Cl, Br, I) Dihalocarbenes via Negative Ion Photoelectron Spectroscopy

    E-Print Network [OSTI]

    Lineberger, W. Carl

    Singlet-Triplet Splittings in CX2 (X ) F, Cl, Br, I) Dihalocarbenes via Negative Ion Photoelectron2, and CI2. In addition to the long list of theoretical studies on CX2 (X ) F, Cl, Br, I

  11. Studies on Ca2+-Doped CeBr3 Scintillating Materials

    SciTech Connect (OSTI)

    Guss, P. [NSTec; Foster, M. E. [SNL; Wong, B. M. [SNL; Doty, F. P. [SNL; Shah, K. [RMD; Squillante, M. R. [RMD; Shirwadkar, U. [RMD; Hawrami, R. [RMD; Tower, J. [RMD; Yuan, D. [NSTec

    2013-09-01T23:59:59.000Z

    Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide (LaBr3:Ce), their commercial availability and application is limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. The objective of this investigation was to employ aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was investigated as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were investigated using the density functional theory within generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

  12. Electron Transfer to SF6 and Oriented CH3Br Sean A. Harris, Susan D. Wiediger, and Philip R. Brooks*

    E-Print Network [OSTI]

    Brooks, Philip R.

    ARTICLES Electron Transfer to SF6 and Oriented CH3Br Sean A. Harris, Susan D. Wiediger, and Philip in collisions of unoriented SF6 and oriented CH3Br. For lab energies 5-30 eV, Br- is the only ion observed from the same energetic threshold for forming Br- . SF5 - , SF6 - , and F- ions are observed from SF6 and O2

  13. Delayed neutron studies of separated isotopes of Br, Rb, I, and Cs

    E-Print Network [OSTI]

    Reeder, R L; Wright, J F

    1976-01-01T23:59:59.000Z

    Discusses delayed neutron studies of separated isotopes of Br, Rb, I, and Cs are currently in progress at the Spectrometer for On-Line Analysis of Radionuclides (SOLAR) facility operated by Battelle, Pacific Northwest Laboratories. (2 refs).

  14. Measurement of BR(Bu to phi K)/BR(Bu to J/psi K) at the collider detector at Fermilab

    SciTech Connect (OSTI)

    Napora, Robert A

    2004-10-01T23:59:59.000Z

    This thesis presents evidence for the decay mode B{sup {+-}} {yields} {phi}K{sup {+-}} in p{bar p} collisions at {radical}s = 1.96 TeV using (120 {+-} 7)pb{sup -1} of data collected by the Collider Detector at Fermilab (CDF). This signal is then used to measure the branching ratio relative to the decay mode B{sup {+-}} {yields} J/{psi}K{sup {+-}}. The measurement starts from reconstructing the two decay modes: B{sup {+-}} {yields} {phi}K{sup {+-}}, where {phi} {yields} K{sup +}K{sup -} and B{sup {+-}} {yields} J/{psi}K{sup {+-}}, where J/{psi} {yields} {mu}{sup +}{mu}{sup -}. The measurement yielded 23 {+-} 7 B{sup {+-}} {yields} {phi}K{sup {+-}} events, and 406 {+-} 26 B{sup {+-}} {yields} J/{psi}K{sup {+-}} events. The fraction of B{sup {+-}} {yields} J/{psi}K{sup {+-}} events where the J/{psi} subsequently decayed to two muons (as opposed to two electrons) was found to be f{sub {mu}{mu}} = 0.839 {+-} 0.066. The relative branching ratio of the two decays is then calculated based on the equation: BR(B{sup {+-}} {yields} {phi}K{sup {+-}})/BR(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) = N{sub {phi}K}/N{sub {psi}K} {center_dot}f{sub {mu}{mu}} BR(J/{psi} {yields} {mu}{sup +}{mu}{sup -})/BR({phi} {yields} K{sup +}K{sup -}) {epsilon}{sub {mu}{mu}}K/{epsilon}KKK R({epsilon}{sub iso}). The measurement finds BR(B{sup {+-}} {yields} {phi}K{sup {+-}})/BR(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) = 0.0068 {+-} 0.0021(stat.) {+-} 0.0007(syst.). The B{sup {+-}} {yields} {phi}K{sup {+-}} branching ratio is then found to be BR(B{sup {+-}} {yields} {phi}K{sup {+-}}) = [6.9 {+-} 2.1(stat.) {+-} 0.8(syst.)] x 10{sup -6}. This value is consistent with similar measurements reported by the e{sup +}e{sup -} collider experiments BaBar[1], Belle[2], and CLEO[3].

  15. br Owner br Facility br Type br Capacity br MW br Commercial br Online

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells, Wisconsin: EnergyWyandanch,Eaga SolarZolo Technologies IncusgbcblackOwner

  16. Measurement of \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->e^+e^-) and \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->\\mu^+\\mu^-)

    E-Print Network [OSTI]

    Anashin, V V; Baldin, E M; Barladyan, A K; Barnyakov, A Yu; Barnyakov, M Yu; Baru, S E; Bedny, I V; Beloborodova, O L; Blinov, A E; Blinov, V E; Bobrov, A V; Bobrovnikov, V S; Bogomyagkov, A V; Bondar, A E; Bondarev, D V; Buzykaev, A R; Eidelman, S I; Glukhovchenko, Yu M; Gulevich, V V; Gusev, D V; Karnaev, S E; Karpov, G V; Karpov, S V; Kharlamova, T A; Kiselev, V A; Kononov, S A; Kotov, K Yu; Kravchenko, E A; Kulikov, V F; Kurkin, G Ya; Kuper, E A; Levichev, E B; Maksimov, D A; Malyshev, V M; Maslennikov, A L; Medvedko, A S; Meshkov, O I; Mishnev, S I; Morozov, I I; Muchnoi, N Yu; Neufeld, V V; Nikitin, S A; Nikolaev, I B; Okunev, I N; Onuchin, A P; Oreshkin, S B; Orlov, I O; Osipov, A A; Peleganchuk, S V; Pivovarov, S G; Piminov, P A; Petrov, V V; Poluektov, A O; Popkov, I N; Prisekin, V G; Ruban, A A; Sandyrev, V K; Savinov, G A; Shamov, A G; Shatilov, D N; Shwartz, B A; Simonov, E A; Sinyatkin, S V; Skovpen, Yu I; Skrinsky, A N; Smaluk, V V; Sokolov, A V; Sukharev, A M; Starostina, E V; Talyshev, A A; Tayursky, V A; Telnov, V I; Tikhonov, Yu A; Todyshev, K Yu; Tumaikin, G M; Usov, Yu V; Vorobiov, A I; Yushkov, A N; Zhilich, V N; Zhulanov, V V; Zhuravlev, A N

    2009-01-01T23:59:59.000Z

    The products of the electron width of the J/\\psi meson and the branching fraction of its decays to the lepton pairs were measured using data from the KEDR experiment at the VEPP-4M electron-positron collider. The results are \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->e^+e^-)=0.3323\\pm0.0064\\pm0.0048 keV, \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->\\mu^+\\mu^-)=0.3318\\pm0.0052\\pm0.0063 keV. Assuming e\\mu universality and using the world average value of the lepton branching fraction, we also determine the leptonic \\Gamma_{ll}=5.59\\pm0.12 keV and total \\Gamma=94.1\\pm2.7 keV widths of the J/\\psi meson.

  17. Measuring BR($h \\to \\tau ^+ \\tau ^-$) at the ILC: a full simulation study

    E-Print Network [OSTI]

    Kawada, Shin-ichi; Suehara, Taikan; Takahashi, Tohru; Tanabe, Tomohiko; Yokoyama, Harumichi

    2015-01-01T23:59:59.000Z

    We evaluate the expected measurement accuracy of the branching ratio of the Standard Model Higgs boson decaying into tau pairs at the ILC with a full simulation of the ILD detector concept. We assume a Higgs mass of 125 GeV, a branching ratio of BR($h \\to \\tau ^+ \\tau ^-$) = 6.32%, a beam polarization of electron (positron) of -0.8(+0.3), and an integrated luminosity of 250 fb$^{-1}$. The Higgs-strahlung process $e^+ e^- \\to Zh$ with $Z \\to q\\overline{q}$ is analyzed. We estimate the measurement accuracy of the branching ratio $\\Delta (\\sigma \\times \\mathrm{BR}) / (\\sigma \\times \\mathrm{BR})$ to be 3.4% with using a multivariate analysis technique.

  18. PSD Methods Comparison and Discrimination Efficiency Study for LaBr3:Ce Detector

    E-Print Network [OSTI]

    Cang, Jirong; Zeng, Zhi; Cheng, Jianping; Liu, Yinong; Li, Junli

    2015-01-01T23:59:59.000Z

    LaBr3:Ce scintillator has been widely studied for nuclear spectroscopy because of its optimal energy resolution (CCM, the correlation between the CCM feature value distribution and the total charge (energy) was quantitatively analyzed, and a fitting equation of the correlation is inferred and verified with experiment. With the equation, an energy-dependent threshold was chosen to optimize the discrim...

  19. Br J Nutr . Author manuscript Calcium carbonate suppresses haem toxicity markers without calcium

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Br J Nutr . Author manuscript Page /1 9 Calcium carbonate suppresses haem toxicity markers without-term studies in rats identified calcium carbonate as the most effective calcium salt to bind haem in vitro demonstrated that a diet containing 100 mol/g calcium carbonate did not promote aberrant crypt foci

  20. The solvation of Cl , Br , and I in acetonitrile clusters: Photoelectron spectroscopy and molecular dynamics simulations

    E-Print Network [OSTI]

    Perera, Lalith

    The solvation of Cl , Br , and I in acetonitrile clusters: Photoelectron spectroscopy and molecular in acetonitrile clusters CH3CN n with n 1­33, 1­40, and 1­55, respectively, taken with 7.9 eV photon energy. Anion simulations of halide­acetonitrile clusters reproduce the measured stabilization energies and generate full

  1. Geothermal br Resource br Area Geothermal br Resource br Area...

    Open Energy Info (EERE)

    Zone Mesozoic granite granodiorite Aurora Geothermal Area Aurora Geothermal Area Walker Lane Transition Zone Geothermal Region MW Beowawe Hot Springs Geothermal Area Beowawe Hot...

  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. cnEiFrnr,:-BR,1;q*tsE ns John Franks

    E-Print Network [OSTI]

    Short, Daniel

    cnEiFrnr,:- BR,1;q*tsE ns Acid rain John Franks The liDk betwccn sulphur at|d dtrogen odde5 sofe.i,rc fro; th..f..ts torhesethe6xh6ustsofmiilionsol porlol of acid rain, little has been don. Acid rain was mntioned by Bdish chemistRobenAngus Smirhas a factor in lhe air a.ound Manchesterand 'cor

  4. MS 211 -CALCULO NUMERICO -1o http://www.ime.unicamp.br/ ms211/

    E-Print Network [OSTI]

    Sussner, Peter

    MS 211 - C´ALCULO NUM´ERICO - 1o SEM/2010 http://www.ime.unicamp.br/ ms211/ Turma Per Ruggiero e V´era Lucia da Rocha Lopes, C´alculo Num´erico - Aspectos Te´oricos e Computacionais, Pearson´etodos Num´ericos para as Engenharias e Ci^encias Aplicadas, Edi- tora da Unicamp, Campinas, segunda edi

  5. Optimization of electrode characteristics for the Br?/H? redox flow cell

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

    Tucker, Michael C.; Cho, Kyu Taek; Weber, Adam Z.; Lin, Guangyu; Van Nguyen, Trung

    2015-01-01T23:59:59.000Z

    The Br?/H? redox flow cell shows promise as a high-power, low-cost energy storage device. The effect of various aspects of material selection, processing, and assembly of electrodes on the operation, performance, and efficiency of the system is determined. In particular, (+) electrode thickness, cell compression, hydrogen pressure, and () electrode architecture are investigated. Increasing hydrogen pressure and depositing the () catalyst layer on the membrane instead of on the carbon-paper backing layers have a large positive impact on performance, enabling a limiting current density above 2 A cm-2 and a peak power density of 1.4 W cm-2. Maximum energy efficiencymoreof 79% is achieved. In addition, the root cause of limiting-current behavior in this system is elucidated, where it is found that Br? reversibly adsorbs at the Pt () electrode for potentials exceeding a critical value, and the extent of Br? coverage is potential-dependent. This phenomenon limits maximum cell current density and must be addressed in system modeling and design. These findings are expected to lower system cost and enable higher efficiency.less

  6. Optimization of electrode characteristics for the Br2/H2 redox flow cell

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

    Tucker, Michael C.; Cho, Kyu Taek; Weber, Adam Z.; Lin, Guangyu; Nguyen, Trung V.

    2014-10-01T23:59:59.000Z

    The Br2/H2 redox flow cell shows promise as a high-power, low-cost energy storage device. The effect of various aspects of material selection, processing, and assembly of electrodes on the operation, performance, and efficiency of the system is determined. In particular, (+) electrode thickness, cell compression, hydrogen pressure, and (?) electrode architecture are investigated. Increasing hydrogen pressure and depositing the (?) catalyst layer on the membrane instead of on the carbon paper backing layers have a large positive impact on performance, enabling a limiting current density above 2 A cm?2 and a peak power density of 1.4 W cm?2. Maximum energymoreefficiency of 79 % is achieved. In addition, the root cause of limiting-current behavior in this system is elucidated, where it is found that Br? reversibly adsorbs at the Pt (?) electrode for potentials exceeding a critical value, and the extent of Br? coverage is potential-dependent. This phenomenon limits maximum cell current density and must be addressed in system modeling and design. These findings are expected to lower system cost and enable higher efficiency.less

  7. Optimization of electrode characteristics for the Br2/H2 redox flow cell

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

    Tucker, Michael C.; Cho, Kyu Taek; Weber, Adam Z.; Lin, Guangyu; Nguyen, Trung V.

    2014-10-01T23:59:59.000Z

    The Br2/H2 redox flow cell shows promise as a high-power, low-cost energy storage device. The effect of various aspects of material selection, processing, and assembly of electrodes on the operation, performance, and efficiency of the system is determined. In particular, (+) electrode thickness, cell compression, hydrogen pressure, and (?) electrode architecture are investigated. Increasing hydrogen pressure and depositing the (?) catalyst layer on the membrane instead of on the carbon paper backing layers have a large positive impact on performance, enabling a limiting current density above 2 A cm?2 and a peak power density of 1.4 W cm?2. Maximum energy efficiency of 79 % is achieved. In addition, the root cause of limiting-current behavior in this system is elucidated, where it is found that Br? reversibly adsorbs at the Pt (?) electrode for potentials exceeding a critical value, and the extent of Br? coverage is potential-dependent. This phenomenon limits maximum cell current density and must be addressed in system modeling and design. These findings are expected to lower system cost and enable higher efficiency.

  8. Near UV atmospheric absorption measurements of column abundances during Airborne Arctic Stratospheric Expedition, January-February 1989: 3. BrO observations

    SciTech Connect (OSTI)

    Wahner, A.; Callies, J.; Dorn, H.P.; Platt, U.; Schiller, C. (Kernforschungsanlage Juelich (West Germany))

    1990-03-01T23:59:59.000Z

    Column abundances of BrO were measured during the Airborne Arctic Stratospheric Expedition from January 6 to February 9, 1989 by near UV absorption spectroscopy. BrO was detected during early flights by scattered sunlight observations during twilight and direct moon light observations during the night. The daytime vertical column abundances of BrO varied between 2 {times} 10{sup 13} cm{sup {minus}2} and 13 {times} 10{sup 13} cm{sup {minus}2} and are consistent with observed OClO column abundances and chemical model calculations. The nighttime presence of BrO suggests different vertical profiles of BrO and ClO.

  9. PSD Methods Comparison and Discrimination Efficiency Study for LaBr3:Ce Detector

    E-Print Network [OSTI]

    Jirong Cang; Ming Zeng; Zhi Zeng; Jianping Cheng; Yinong Liu; Junli Li

    2015-04-21T23:59:59.000Z

    LaBr3:Ce scintillator has been widely studied for nuclear spectroscopy because of its optimal energy resolution (CCM, the correlation between the CCM feature value distribution and the total charge (energy) was quantitatively analyzed, and a fitting equation of the correlation is inferred and verified with experiment. With the equation, an energy-dependent threshold was chosen to optimize the discrimination efficiency. Therefore, it can be expected that a correction of the alpha and gamma PSD spectrum would also be done with the equation, to achieve more accurate result.

  10. Infrared spectra of ClCN{sup +}, ClNC{sup +}, and BrCN{sup +} trapped in solid neon

    SciTech Connect (OSTI)

    Jacox, Marilyn E.; Thompson, Warren E. [Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8441 (United States)

    2007-06-28T23:59:59.000Z

    When a mixture of ClCN or BrCN with a large excess of neon is codeposited at 4.3 K with a beam of neon atoms that have been excited in a microwave discharge, the infrared spectrum of the resulting solid includes prominent absorptions of the uncharged isocyanide, ClNC or BrNC, and of the corresponding cation, ClCN{sup +} or BrCN{sup +}. The NC-stretching fundamentals of the isocyanides trapped in solid neon lie close to the positions for their previously reported argon-matrix counterparts. The CN-stretching absorptions of ClCN{sup +} and BrCN{sup +} and the CCl-stretching absorption of ClCN{sup +} appear very close to the gas-phase band centers. Absorptions of two overtones and one combination band of ClCN{sup +} are identified. Reversible photoisomerization of ClCN{sup +} to ClNC{sup +} occurs. The two stretching vibrational fundamentals and several infrared and near infrared absorptions associated with electronic transitions of ClNC{sup +} are observed. Minor infrared peaks are attributed to the vibrational fundamental absorptions of the CX and CX{sup +} species (X=Cl,Br)

  11. High temperature crystal structures and superionic properties of SrCl{sub 2}, SrBr{sub 2}, BaCl{sub 2} and BaBr{sub 2}

    SciTech Connect (OSTI)

    Hull, Stephen, E-mail: stephen.hull@stfc.ac.uk [The ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Norberg, Stefan T. [The ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg (Sweden); Ahmed, Istaq; Eriksson, Sten G. [Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg (Sweden); Mohn, Chris E. [Department of Chemistry and Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo (Norway)

    2011-11-15T23:59:59.000Z

    The structural properties of the binary alkaline-earth halides SrCl{sub 2}, SrBr{sub 2}, BaCl{sub 2} and BaBr{sub 2} have been investigated from ambient temperature up to close to their melting points, using the neutron powder diffraction technique. Fluorite-structured SrCl{sub 2} undergoes a gradual transition to a superionic phase at 900-1100 K, characterised by an increasing concentration of anion Frenkel defects. At a temperature of 920(3) K, the tetragonal phase of SrBr{sub 2} undergoes a first-order transition to a cubic fluorite phase. This high temperature phase shows the presence of extensive disorder within the anion sublattice, which differs from that found in superionic SrCl{sub 2}. BaCl{sub 2} and BaBr{sub 2} both adopt the cotunnite crystal structure under ambient conditions. BaCl{sub 2} undergoes a first-order structural transition at 917(5) K to a disordered fluorite-structured phase. The relationship between the (disordered) crystal structures and the ionic conductivity behaviour is discussed and the influence of the size of the mobile anion on the superionic behaviour is explored. - Graphical abstract: Anomalous behaviour of the lattice expansion of SrCl{sub 2} at temperatures of {approx}1000 K is associated with the gradual transition to a superionic phase, whilst SrBr{sub 2} undergoes a first-order structural transition ({beta}{yields}{alpha}) to a fluorite-structured superionic phase at 920(3) K. Highlights: > Anomalous behaviour of the lattice expansion of SrCl{sub 2} occurs at temperatures {approx}1000 K. > Crystal structure of {beta}-SrBr{sub 2} is described in detail. > On heating, SrBr{sub 2} and BaCl{sub 2} transform to a fluorite-structured superionic phase. > Temperature dependence of the BaCl{sub 2} and BaBr{sub 2} structures is presented. > Nature of the superionic phases within the alkaline-earth halides is discussed.

  12. The impact of water flow configuration on crystallisation in LiBr/H2O absorption water heater

    SciTech Connect (OSTI)

    Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Vineyard, Edward Allan [ORNL

    2011-03-01T23:59:59.000Z

    Lithium Bromide (LiBr) strong solution entering the absorber tends to crystallise when the absorber temperature is increased for a fixed evaporating pressure. This is considered the key technical barrier for the development of a LiBr absorption heat pump water heater. There are several approaches to avoid the crystallisation problem, such as chemical crystallisation inhibitors, heat and mass transfer enhancement and thermodynamic cycle modification. This paper investigates and compares two flow configurations of LiBr absorption heat pump water heater to evaluate the allowable operating conditions for each. The simulation results indicated that introducing the process water through the absorber first results in lower absorber temperature and hence less tendency for crystallisation.

  13. Microwave-assisted solvothermal synthesis of flower-like Ag/AgBr/BiOBr microspheres and their high efficient photocatalytic degradation for p-nitrophenol

    SciTech Connect (OSTI)

    Li, Tingting, E-mail: tingtingli1983@hotmail.com [Department of Chemistry and Chemical Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Changsha 410082 (China); State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082 (China); Department of Environment and Chemical Engineering, Key Laboratory of Jiangxi Province for Ecological Diagnosis, Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Luo, Shenglian, E-mail: sllou@hnu.edu.cn [Department of Chemistry and Chemical Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Changsha 410082 (China); State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082 (China); Department of Environment and Chemical Engineering, Key Laboratory of Jiangxi Province for Ecological Diagnosis, Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Yang, Lixia [Department of Environment and Chemical Engineering, Key Laboratory of Jiangxi Province for Ecological Diagnosis, Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China)

    2013-10-15T23:59:59.000Z

    Flower-like Ag/AgBr/BiOBr microspheres were successfully fabricated by the approach of microwave-assisted solvothermal and in situ photo-assisted reduction. A reactive ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C{sub 16}mim]Br) was employed as Br source in the presence of surfactant polyvinylpyrrolidone (PVP). The photocatalytic activity of Ag/AgBr/BiOBr towards the decomposition of p-nitrophenol under visible light irradiation was evaluated. The results indicated that Ag/AgBr/BiOBr showed enhanced photocatalytic activity towards p-nitrophenol, comparing with P25, BiOBr and Ag/AgBr. More than 96% of p-nitrophenol was decomposed in 3.5 h under visible-light irradation. The excellent photocatalytic activity of flower-like Ag/AgBr/BiOBr microspheres can be attributed to the large specific surface area, strong visible-light absorption, suitable energy band structure and surface plasmon resonance effect of Ag nanoparticles. The possible photocatalytic mechanism was proposed based on the active species test and band gap structure analysis. - Graphical abstract: The photocatalytic reaction mechanisms of the as-prepared Ag/AgBr/BiOBr. Display Omitted - Highlights: Successful synthesis of flower-like Ag/AgBr/BiOBr microspheres. The Ag/AgBr/BiOBr showed much higher photocatalytic activity towards p-nitrophenol as compared to BiOBr and Ag/AgBr. The reasons for the excellent photocatalytic activity are the large specific surface area, strong visible-light absorption and surface plasmon resonance effect of Ag nanoparticles. The O{sub 2}{sup ?}, Br{sup 0} and photogenerated h{sup +} play key roles in the photocatalytic degradation process.

  14. LiCl Dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery

    DOE Patents [OSTI]

    Ko, Suk M. (Huntsville, AL)

    1980-01-01T23:59:59.000Z

    This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system.

  15. Robust CsBr/Cu Photocathodes for the Linac Coherent Light Source

    SciTech Connect (OSTI)

    Maldonado, Juan R.; /Stanford U., Phys. Dept.; Liu, Zhi; Dowell, D.H.; Kirby, Robert E.; Sun, Yun; Pianetta, Piero; /SLAC; Pease, Fabian; /Stanford U., Phys. Dept.

    2011-06-21T23:59:59.000Z

    The linac coherent light source (LCLS), an x-ray free-electron laser project presently under construction at SLAC, uses a 2.856 GHz rf photocathode gun with a copper cathode for its electron source. While the copper cathode is performing well for the LCLS project, a cathode material with higher quantum efficiency would reduce the drive laser requirements and allow a greater range of operating conditions. Therefore a robust CsBr/Cu photocathode with greater than 50 times the quantum yield at 257 nm relative to the present LCLS copper cathode has been investigated. Preliminary experiments using a dedicated electron source development test stand at SLAC/SSRL are encouraging and are presented in this paper.

  16. Infrared phonon modes in multiferroic single-crystal FeTe2O5Br

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

    Miller, K. H.; Xu, X. S.; Berger, H.; Craciun, V.; Xi, Xiaoxiang; Martin, C.; Carr, G. L.; Tanner, D. B.

    2013-06-01T23:59:59.000Z

    Reflection and transmission as a function of temperature (7300 K and 5300 K respectively) have been measured on single crystals of the multiferroic compound FeTe2O5Br utilizing light spanning from the far infrared to the visible. The complex dielectric function and other optical properties were obtained via Kramers-Kronig analysis and by fits to a Drude-Lortentz model. Analysis of the anisotropic excitation spectra via Drude-Lorentz fitting and lattice dynamical calculations have led to the observation of 43 of the 53 modes predicted along the b axis of the monoclinic cell. The phonon response parallel to the a and c axes are also presented. Assignments to groups (clusters) of phonons have been made and trends within them are discussed in light of our calculated displacement patterns.

  17. Reactive halogens (BrO and OClO) detected in the plume of Soufrire Hills Volcano during an eruption hiatus

    E-Print Network [OSTI]

    Donovan, Amy; Tsanev, Vitchko; Oppenheimer, Clive; Edmonds, Marie

    2014-08-20T23:59:59.000Z

    published data from petrological studies of SHV. Pumiceous clasts with high vesicularity at SHV have higher Cl and Br content than dome rocks, and both spe- cies appear to have similar degassing behaviors [Villemant et al., 2008] (using whole-rock Br content... , the work of Bobrowski et al. [2003] and that of Villemant et al. [2008], and compare this with results from the experimental petrology literature. The decrease of Br relative to Cl suggests that the relative partition- ing of Cl and Br into the fluid phase...

  18. State-of-the-Art Review on Crystallization Control Technologies for water/LiBr Absorption Heat Pumps

    SciTech Connect (OSTI)

    Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Kisari, Padmaja [ORNL; Vineyard, Edward Allan [ORNL

    2011-01-01T23:59:59.000Z

    The key technical barrier to using water/lithium bromide (LiBr) as the working fluid in aircooled absorption chillers and absorption heat-pump systems is the risk of crystallization when the absorber temperature rises at fixed evaporating pressure. This article reviews various crystallization control technologies available to resolve this problem: chemical inhibitors, heat and mass transfer enhancement methods, thermodynamic cycle modifications, and absorption system-control strategies. Other approaches, such as boosting absorber pressure and J-tube technology, are reviewed as well. This review can help guide future efforts to develop water/LiBr air-cooled absorption chillers and absorption heatpump systems.

  19. Comparison of LaBr3:Ce and NaI(Tl) Scintillators for Radio-Isotope Identification Devices

    SciTech Connect (OSTI)

    Milbrath, Brian D.; Choate, Bethany J.; Fast, Jim E.; Hensley, Walter K.; Kouzes, Richard T.; Schweppe, John E.

    2006-07-31T23:59:59.000Z

    Lanthanum halide (LaBr3:Ce) scintillators offer significantly better resolution (<3 percent at 662 kilo-electron volt [keV]) relative to sodium iodide (NaI(Tl)) and have recently become commercially available in sizes large enough for the hand-held radio-isotope identification device (RIID) market. There are drawbacks to lanthanum halide detectors, however. These include internal radioactivity that contributes to spectral counts and a low-energy response that can cause detector resolution to be lower than that of NaI(Tl) below 100 keV. To study the potential of this new material for RIIDs, we performed a series of measurements comparing a 1.5?1.5 inch LaBr?3:Ce detector with an Exploranium GR 135 RIID, which contains a 1.5-2.2 inch NaI(Tl) detector. Measurements were taken for short time frames, as typifies RIID usage. Measurements included examples of naturally occurring radioactive material (NORM), typically found in cargo, and special nuclear materials. Some measurements were noncontact, involving short distances or cargo shielding scenarios. To facilitate direct comparison, spectra from the different detectors were analyzed with the same isotope identification software (ORTEC ScintiVision TM). In general, the LaBr3:Ce detector was able to find more peaks and find them faster than the NaI(Tl) detector. To the same level of significance, the LaBr3:Ce detector was usually two to three times faster. The notable exception was for 40K containing NORM where interfering internal contamination in the LaBr3:Ce detector exist. NaI(Tl) consistently outperformed LaBr3:Ce for this important isotope. LaBr3:Ce currently costs much more than NaI(Tl), though this cost-difference is expected to diminish (but not completely) with time. As is true of all detectors, LaBr3:Ce will need to be gain-stabilized for RIID applications. This could possibly be done using the internal contaminants themselves. It is the experience of the authors that peak finding software in RIIDs needs to be improved, regardless of the detector material.

  20. Synthesis, crystal structure, spectroscopic and thermal properties of [Et{sub 4}N][Ta{sub 6}Br{sub 12}(H{sub 2}O){sub 6}]Br{sub 4}.4H{sub 2}O (Et=ethyl)-A new compound with the paramagnetic [Ta{sub 6}Br{sub 12}]{sup 3+} cluster core

    SciTech Connect (OSTI)

    Peric, Berislav, E-mail: bperic@irb.h [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Jozic, Drazan [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Planinic, Pavica, E-mail: planinic@irb.h [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Brnicevic, Nevenka [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Giester, Gerald [Institut fuer Mineralogie und Kristallographie, Universitaet Wien-Geozentrum Althanstrasse, 14, 1090 Wien (Austria)

    2009-09-15T23:59:59.000Z

    A new hexanuclear cluster compound, [Et{sub 4}N][Ta{sub 6}Br{sub 12}(H{sub 2}O){sub 6}]Br{sub 4}.4H{sub 2}O (Et=ethyl) (1), with the paramagnetic [Ta{sub 6}Br{sub 12}]{sup 3+} cluster entity, was synthesized and characterized by elemental and TG/DTA analyses, IR and UV/Vis spectroscopy and by a single-crystal X-ray diffraction study. The presence of the paramagnetic [Ta{sub 6}Br{sub 12}]{sup 3+} unit was confirmed also by the room-temperature magnetic and EPR measurements. The compound crystallizes in the tetragonal I4{sub 1}/a space group, with a=14.299(5), c=21.241(5) A, Z=4, R{sub 1}(F)/wR{sub 2}(F{sup 2})=0.0296/0.0811. The structure contains discrete [Ta{sub 6}Br{sub 12}(H{sub 2}O){sub 6}]{sup 3+} cations with an octahedron of metal atoms edge-bridged by bromine atoms and with water molecules occupying all six terminal positions. The cluster units are positioned in the vertices of the three-dimensional (pseudo)diamond lattice. The structure shows similarities with literature reported structures of cluster compounds crystallizing in the diamond (Fd3-barm) space group. - Graphical abstract: Two interpenetrating (pseudo)diamond nets formed by packing of the paramagnetic [Ta{sub 6}Br{sub 12}(H{sub 2}O)]{sup 3+} (octahedral) and diamagnetic [Et{sub 4}N]{sup +} (spheres) cations.

  1. Core-to-valence spectroscopic detection of the CH{sub 2}Br radical and element-specific femtosecond photodissociation dynamics of CH{sub 2}IBr

    SciTech Connect (OSTI)

    Attar, Andrew R.; Piticco, Lorena [Department of Chemistry, University of California, Berkeley, California 94720 (United States); Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Leone, Stephen R. [Department of Chemistry, University of California, Berkeley, California 94720 (United States); Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Physics, University of California, Berkeley, California 94720 (United States)

    2014-10-28T23:59:59.000Z

    Element-specific single photon photodissociation dynamics of CH{sub 2}IBr and core-to-valence absorption spectroscopy of CH{sub 2}Br radicals are investigated using femtosecond high-harmonic extreme ultraviolet (XUV) transient absorption spectroscopy. Photodissociation of CH{sub 2}IBr along both the CI or CBr reaction coordinates is observed in real-time following excitation at 266 nm. At this wavelength, CI dissociation is the dominant reaction channel and CBr dissociation is observed as a minor pathway. Both photodissociation pathways are probed simultaneously through individual 4d(I) N{sub 4/5} and 3d(Br) M{sub 4/5} core-to-valence transitions. The 3d(Br) M{sub 4/5} pre-edge absorption spectrum of the CH{sub 2}Br radical photoproduct corresponding to the CI dissociation channel is characterized for the first time. Although the radical's singly occupied molecular orbital (SOMO) is mostly localized on the central carbon atom, the 3d(Br) ? ?{sup *}(SOMO) resonances at 68.5 eV and 69.5 eV are detected 2 eV below the parent molecule 3d(Br) ? ?{sup *}(LUMO) transitions. Core-to-valence XUV absorption spectroscopy provides a unique probe of the local electronic structure of the radical species in reference to the Br reporter atom. The measured times for CI dissociation leading to I and I{sup *} atomic products are 48 12 fs and 44 4 fs, respectively, while the measured CBr dissociation time leading to atomic Br is 114 17 fs. The investigation performed here demonstrates the capability of femtosecond time-resolved core-level spectroscopy utilizing multiple reporter atoms simultaneously.

  2. 866 IEEE COMMUNICATIONS LETTERS, VOL. 16, NO. 6, JUNE 2012 ICE: Intelligent Cell BrEathing to

    E-Print Network [OSTI]

    Ansari, Nirwan

    Eathing to Optimize the Utilization of Green Energy Tao Han, Student Member, IEEE, and Nirwan Ansari, Fellow, IEEE Abstract--This letter proposes Intelligent Cell brEathing (ICE) to optimize the utilization of green energy by green energy. Minimizing the maximal depleting rate is an NP-hard problem. ICE is thus proposed

  3. Ag/AgBr/g-C{sub 3}N{sub 4}: A highly efficient and stable composite photocatalyst for degradation of organic contaminants under visible light

    SciTech Connect (OSTI)

    Cao, Jing, E-mail: caojing@mail.ipc.ac.cn [College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui (China); State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 (China); Zhao, Yijie; Lin, Haili; Xu, Benyan [College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui (China); Chen, Shifu, E-mail: chshifu@chnu.edu.cn [College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui (China)

    2013-10-15T23:59:59.000Z

    Graphical abstract: Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalysts displayed excellent photocatalytic activities on the degradation of methyl orange (MO) under visible light. The improved photocatalytic performance and stability of Ag/AgBr/g-C{sub 3}N{sub 4} originated from the synergetic effects of AgBr/g-C{sub 3}N{sub 4} interface and metallic Ag nanoparticles. O{sub 2}?, one of the reactive species, was responsible for the photodegradation of MO compared to H+ and OH. - Highlights: Novel Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalyst was reported. Ag/AgBr/g-C{sub 3}N{sub 4} had novel energy band combination between AgBr and g-C{sub 3}N{sub 4}. Synergetic effects of AgBr/g-C{sub 3}N{sub 4} interface and metallic Ag nanoparticles. Electron trapping role of metallic Ag dominated the stability of Ag/AgBr/g-C{sub 3}N{sub 4}. - Abstract: Novel Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalysts were constructed via depositionprecipitation method and extensively characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and UVvis diffuse reflectance spectroscopy (DRS). Under visible light (? > 420 nm), Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalysts displayed much higher photocatalytic activities than those of Ag/AgBr and g-C{sub 3}N{sub 4} for degradation of methyl orange (MO). 50% Ag/AgBr/g-C{sub 3}N{sub 4} presented the best photocatalytic performance, which was mainly attributed to the synergistic effects of AgBr/g-C{sub 3}N{sub 4} interface and the in situ metallic Ag nanoparticles for efficiently separating electronhole pairs. Furthermore, Ag/AgBr/g-C{sub 3}N{sub 4} remained good photocatalytic activity through 5 times of cycle experiments. Additionally, the radical scavengers experiment indicated that O{sub 2}{sup ?} was the main reactive species for the MO degradation under visible light.

  4. Measurement of electron capture and loss cross section for 41.67 MeV ??Br ions in H?

    E-Print Network [OSTI]

    Burns, James Martin

    1967-01-01T23:59:59.000Z

    . The lab frame is the rest frame of the ion. . . . . . . . . . . . . . . . . 51 Schematic diagram of the Tandem Van de Graaff Accel- erator as used to accelerate 7 Br ions. . . . . , . . . . . . . . . . 52 Schematic diagram of experimental apparatus... of this century. Initial investigations concerned the pas- sage of protons and alpha particles through matter as these were essentially the only high speed particles available at that time. Consequently, much information has been accumulated concerning...

  5. Research to understand the embrittlement behavior of Yankee/BR3 surveillance plate and other outlier RPV steels

    SciTech Connect (OSTI)

    Fabry, A.; Velde, J. van de; Puzzolante, J.L.; Ransbeeck, T. van; Verstrepen, A. [SCK/CEN, Mol (Belgium); Biemiller, E.C. [Yankee Atomic Electric Co., Bolton, MA (United States); Carter, R.G. [Electric Power Research Inst., Charlotte, NC (United States); Petrova, T. [INRNE, Sofia (Bulgaria)

    1996-12-31T23:59:59.000Z

    The reactor pressure vessels at the Yankee Rowe and Belgian BR3 nuclear plants were constructed by Babcock and Wilcox in 1958. The plates of an open-hearth fabrication were welded using a submerged-arc process with Linde 80 flux as the filler. The original surveillance programs at the two plants were limited to representative A302B specimens; they feature similar chemistries as the ASTM reference plate, but coarser microstructure. The present testing program includes sixteen Charpy-V and four tensile specimens of the surveillance plate, irradiated at BR3 at a dose rate of {approx} 7 E10 cm{sup {minus}2}.s-1 (> 1 MeV) over a period of 25 years; the investigation also addresses annealing and notch orientation effects. The new experimental results are compared to previously published data for the same and/or related melts. The Yankee/BR3 surveillance plate displays an anomalously large 41J C{sub v}-shift as compared to the ASTM reference plate and to Regulatory predictions. Some of the Linde 80 welds investigated by the BR3 program are also found to behave as outliers. The data are evaluated in the light of state-of-the-art damage modeling and fracture micromechanics concepts, which are currently being incorporated into a new, consolidated strategy for improved RPV surveillance. The approach makes extensive use of the information contained in the load-deflection response of the instrumented C{sub v} test. The implications of such analysis in terms of RPV steel embrittlement trend curve development are discussed. 90 refs.

  6. zimas para entender evoluo de leveduras -Terra Brasil 1/1...terra.com.br/.../cientistas-recriam-enzimas-para-entender-evolucao-de-leveduras,a996ed7e34c...

    E-Print Network [OSTI]

    como enzima ligada ao câncer funciona http://noticias.terra.com.br/ciencia parte do tratamento contra... http://noticias.terra.com.br/ciencia evolução de cromossomos sexuais http://noticias.terra.com.br/ciencia

  7. LQES Laboratrio de Qumica do Estado Slido Instituto de Qumica -UNICAMP http://lqes.iqm.unicamp.br Nanocincia e Nanotecnologia: um bom motivo para a

    E-Print Network [OSTI]

    Campinas, Universidade Estadual de

    ://lqes.iqm.unicamp.br Nanociência e Nanotecnologia: um bom motivo para a Cooperação Científica Brasil-Argentina Oswaldo Luiz Alves, Campinas, SP, Brasil. oalves@iqm.unicamp.br 1. Introdução A Nanociência e a Nanotecnologia (N&N) - áreas do, energia, tratamento de água (potabilidade), saúde pública, entre tantos outros3 . Uma das características

  8. 8 | harriman magazine By ROnALD MEyER

    E-Print Network [OSTI]

    Qian, Ning

    for just over a year now, stationed in both Washington, D.C., and Almaty, Kazakhstan. What is the mission about economic development in Kazakhstan. The article you're referring to was an op-ed I produced for the EUROBAK (European Business Association of Kazakhstan) Global Monitor, a business magazine based

  9. Overview of ALD Precursors and Reaction Mechanisms Roy G. Gordon

    E-Print Network [OSTI]

    -flammable, non-corrosive, non-toxic, simple and non-hazardous to make and inexpensive. Presenting Author: Roy GXe YttriumY 4 CopperCu DysprosiumDy ErbiumEr LithiumLi LutetiumLu MagnesiumMg RhodiumRh RutheniumRu Sulfur

  10. Atomic Layer Deposition (ALD) Preparation of Noble Metal Catalysts - Energy

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

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

  11. Preliminary design report: Babcock and Wilcox BR-100 100-ton rail/barge spent fuel shipping cask

    SciTech Connect (OSTI)

    none,

    1990-02-01T23:59:59.000Z

    The purpose of this document is to provide information on burnup credit as applied to the preliminary design of the BR-100 shipping cask. There is a brief description of the preliminary basket design and the features used to maintain a critically safe system. Following the basket description is a discussion of various criticality analyses used to evaluate burnup credit. The results from these analyses are then reviewed in the perspective of fuel burnups expected to be shipped to either the final repository or a Monitored Retrievable Storage (MRS) facility. The hurdles to employing burnup credit in the certification of any cask are then outlines and reviewed. the last section gives conclusions reached as to burnup credit for the BR-100 cask, based on our analyses and experience. All information in this study refers to the cask configured to transport PWR fuel. Boiling Water Reactor (BWR) fuel satisfies the criticality requirements so that burnup credit is not needed. All calculations generated in the preparation of this report were based upon the preliminary design which will be optimized during the final design. 8 refs., 19 figs., 16 tabs.

  12. The Synergism Between Heat and Mass Transfer Additive and Advanced Surfaces in Aqueous LiBr Horizontal Tube Absorbers

    SciTech Connect (OSTI)

    Miller, W.A.

    1999-03-24T23:59:59.000Z

    Experiments were conducted in a laboratory to investigate the absorption of water vapor into a falling-film of aqueous lithium bromide (LiBr). A mini-absorber test stand was used to test smooth tubes and a variety of advanced tube surfaces placed horizontally in a single-row bundle. The bundle had six copper tubes; each tube had an outside diameter of 15.9-mm and a length of 0.32-m. A unique feature of the stand is its ability to operate continuously and support testing of LiBr brine at mass fractions {ge} 0.62. The test stand can also support testing to study the effect of the failing film mass flow rate, the coolant mass flow rate, the coolant temperature, the absorber pressure and the tube spacing. Manufacturers of absorption chillers add small quantities of a heat and mass transfer additive to improve the performance of the absorbers. The additive causes surface stirring which enhances the transport of absorbate into the bulk of the film. Absorption may also be enhanced with advanced tube surfaces that mechanically induce secondary flows in the falling film without increasing the thickness of the film. Several tube geometry's were identified and tested with the intent of mixing the film and renewing the interface with fresh solution from the tube wall. Testing was completed on a smooth tube and several different externally enhanced tube surfaces. Experiments were conducted over the operating conditions of 6.5 mm Hg absorber pressure, coolant temperatures ranging from 20 to 35 C and LiBr mass fractions ranging from 0.60 through 0.62. Initially the effect of tube spacing was investigated for the smooth tube surface, tested with no heat and mass transfer additive. Test results showed the absorber load and the mass absorbed increased as the tube spacing increased because of the improved wetting of the tube bundle. However, tube spacing was not a critical factor if heat and mass transfer additive was active in the mini-absorber. The additive dramatically affected the hydrodynamics of the falling film and a droplet flow regime was evident for testing at all tube spacings. The mechanical mixing of the advanced surfaces increased the mass transfer to about 75% of that observed on a smooth tube bundle, tested with heat and mass transfer additive. Testing with heat and mass transfer additive and advanced surfaces demonstrated a synergistic effect which doubled the mass absorbed from that observed with only the advanced surface. The overall film-side heat transfer coefficient for the advanced tube bundles doubled with the addition of 500-wppm of 2-ethyl-1- hexanol.

  13. Growing up in Karachi, Pakistan, Ayesha Muhammad br '14 excelled in the science and math courses that were the focus of her studies, but it was the

    E-Print Network [OSTI]

    Growing up in Karachi, Pakistan, Ayesha Muhammad br '14 excelled in the science and math courses like Introduction to Art History and The Near East from Alexander to Muhammad," she said. "In Pakistan at an orphanage in Mexico. Looking ahead, Ayesha intends to earn her medical degree and work in rural Pakistan. "I

  14. High Spin Co(I): High-Frequency and -Field EPR Spectroscopy of CoX(PPh3)3 (X = Cl, Br)

    E-Print Network [OSTI]

    McQuade, D. Tyler

    High Spin Co(I): High-Frequency and -Field EPR Spectroscopy of CoX(PPh3)3 (X = Cl, Br) J. Krzystek Supporting Information ABSTRACT: The previously reported pseudotetrahedral Co(I) complexes, CoX(PR3)3, where is uncommon for Co(I), although expected for this geometry. Described here are studies using electronic

  15. Study of the ArBr-, AC, and Krl-anions and the corresponding neutral van der Waals complexes by anion zero electron kinetic energy

    E-Print Network [OSTI]

    Neumark, Daniel M.

    by anion zero electron kinetic energy spectroscopy Yuexing Zhao, Ivan Yourshaw, Georg Reiser, Caroline C a zero electron kinetic energy @EKE) spectroscopy study of sev- eral rare gas halide (RgX-) anionsI-, and the corresponding open-shell van der Waals complexes, ArBr, ArI, and KrI, were studied with anion zero electron

  16. 80 K anomaly and its effect on the superconducting and magnetic transition in deuterated -,,BEDT-TTF...2CuN,,CN...2Br

    E-Print Network [OSTI]

    Zuo, Fulin

    careful transport and magnetic measurements on single crystals of deuterated - ET 2Cu N CN 2 Br cooling through 80 K will freeze the high temperature magnetic phase to low temperatures and the presence ordering of the chains. In this paper, we report careful transport and magnetic measurements on several

  17. Infrared absorption of gaseous CH{sub 2}BrOO detected with a step-scan Fourier-transform absorption spectrometer

    SciTech Connect (OSTI)

    Huang, Yu-Hsuan [Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Lee, Yuan-Pern, E-mail: yplee@mail.nctu.edu.tw [Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan (China)

    2014-10-28T23:59:59.000Z

    CH{sub 2}BrOO radicals were produced upon irradiation, with an excimer laser at 248 nm, of a flowing mixture of CH{sub 2}Br{sub 2} and O{sub 2}. A step-scan Fourier-transform spectrometer coupled with a multipass absorption cell was employed to record temporally resolved infrared (IR) absorption spectra of reaction intermediates. Transient absorption with origins at 1276.1, 1088.3, 961.0, and 884.9 cm{sup ?1} are assigned to ?{sub 4} (CH{sub 2}-wagging), ?{sub 6} (OO stretching), ?{sub 7} (CH{sub 2}-rocking mixed with CO stretching), and ?{sub 8} (CO stretching mixed with CH{sub 2}-rocking) modes of syn-CH{sub 2}BrOO, respectively. The assignments were made according to the expected photochemistry and a comparison of observed vibrational wavenumbers, relative IR intensities, and rotational contours with those predicted with the B3LYP/aug-cc-pVTZ method. The rotational contours of ?{sub 7} and ?{sub 8} indicate that hot bands involving the torsional (?{sub 12}) mode are also present, with transitions 7{sub 0}{sup 1}12{sub v}{sup v} and 8{sub 0}{sup 1}12{sub v}{sup v}, v = 110. The most intense band (?{sub 4}) of anti-CH{sub 2}BrOO near 1277 cm{sup ?1} might have a small contribution to the observed spectra. Our work provides information for directly probing gaseous CH{sub 2}BrOO with IR spectroscopy, in either the atmosphere or laboratory experiments.

  18. Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu{sup 2+} medical imaging plates

    SciTech Connect (OSTI)

    Vrielinck, H.; Loncke, F.; Matthys, P.; Callens, F. [Department of Solid State Sciences, Ghent University, Krijgslaan 281-S1, B-9000 Gent (Belgium); Tahon, J.-P.; Leblans, P. [Agfa HealthCare NV, Septestraat 27, B-2640 Mortsel (Belgium)

    2011-02-01T23:59:59.000Z

    CsBr:Eu{sup 2+} needle image plates exhibit an electron-paramagnetic-resonance (EPR) spectrum at room temperature (RT), whose intensity is correlated with the photostimulated luminescence sensitivity of the plate. This EPR spectrum shows a strong temperature dependence: At RT it is owing to a single Eu{sup 2+} (S =7/2) center with axial symmetry, whereas at T<35 K the spectra can only be explained when two distinct centers are assumed to be present, a minority axial center and a majority center with nearly extremely rhombic symmetry. In this paper these low-temperature centers are studied with electron nuclear double resonance (ENDOR) spectroscopy, which reveals the presence of {sup 1}H nuclei close to the central Eu{sup 2+} ions in the centers. Analysis of the angular dependence of the ENDOR spectra allows to propose models for these centers, providing an explanation for the observed difference in intensity between the spectral components and for their temperature dependence.

  19. Presseinformation Pressesprecherin: Katja Br

    E-Print Network [OSTI]

    Mannheim, Universität

    Studierendenorganisation Students in Free Enterprises erfolgreich / Mannheimer Team tritt in Washington D.C. beim internationalen Wettbewerb an Die Studierendenorganisation SIFE Mannheim (Students in Free Enterprises) tritt beim

  20. Presseinformation Pressesprecherin: Katja Br

    E-Print Network [OSTI]

    Mannheim, Universität

    in einem Auto mit Elektro- oder Verbrennungsmotor. Neben den Leistungen in verschiedenen Renndisziplinen

  1. Presseinformation Pressesprecherin: Katja Br

    E-Print Network [OSTI]

    Mannheim, Universität

    tatsächlich gefunden: das sogenannte Higgs-Boson. Ein Teilchen, das zur Erklärung der Masse dient. Heute

  2. Geothermal br Resource br Area Geothermal br Resource br Area Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)Energy

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    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)EnergyAmatitlan Geothermal Area Amatitlan Geothermal

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    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)EnergyAmatitlan Geothermal Area Amatitlan

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    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)EnergyAmatitlan Geothermal Area AmatitlanExtensional

  6. Geothermal br Resource br Area Geothermal br Resource br Area Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)EnergyAmatitlan Geothermal Area

  7. Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2}: A new bismuth oxo-selenite bromide

    SciTech Connect (OSTI)

    Berdonosov, Peter S., E-mail: berdonosov@inorg.chem.msu.ru [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation); Olenev, Andrei V. [SineTheta Ltd., MSU Building 1-77, 119991 Moscow (Russian Federation)] [SineTheta Ltd., MSU Building 1-77, 119991 Moscow (Russian Federation); Kirsanova, Maria A. [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation); Lebed, Julia B. [Institute for nuclear research RAS, 142190, Troitsk, Moscow region (Russian Federation)] [Institute for nuclear research RAS, 142190, Troitsk, Moscow region (Russian Federation); Dolgikh, Valery A. [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)

    2012-12-15T23:59:59.000Z

    A new bismuth oxo-selenite bromide Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2} was synthesized and structurally characterized. The crystal structure belongs to the triclinic system (space group P1-bar , Z=2, a=7.1253(7) A, b=10.972(1) A, c=12.117(1) A, {alpha}=67.765(7) Degree-Sign , {beta}=82.188(8) Degree-Sign , {gamma}=78.445(7) Degree-Sign ) and is unrelated to those of other known oxo-selenite halides. It can be considered as an open framework composed of BiO{sub x} or BiO{sub y}Br{sub z} polyhedrons forming channels running along [1 0 0] direction which contain the selenium atoms in pyramidal shape oxygen coordination (SeO{sub 3}E). The spectroscopic properties and thermal stability were studied. The new compound is stable up to 400 Degree-Sign C. - graphical abstract: New bismuth oxo-selenite bromide with new open framework structure. Highlights: Black-Right-Pointing-Pointer New bismuth oxo-selenite bromide was found and structurally characterized. Black-Right-Pointing-Pointer Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2} exhibit a new open framework structure type. Black-Right-Pointing-Pointer BiO{sub x} or BiO{sub y}Br{sub z} polyhedrons form channels in the structure which are decorated by [SeO{sub 3}E] groups.

  8. Simulation and performance analysis of basic GAX and advanced GAX cycles with ammonia/water and ammonia/water/LiBr absorption fluids

    SciTech Connect (OSTI)

    Zaltash, A.; Grossman, G.

    1996-03-01T23:59:59.000Z

    The generator-absorber heat exchange (GAX) and branched GAX cycles are generally considered with NH{sub 3}/H{sub 2}O as their working fluid. The potential consequences of using a ternary mixture of NH{sub 3}/H{sub 2}O/LiBr (advanced fluids) in the GAX and Branched GAX (advanced cycles) are discussed in this study. A modular steady state absorption simulation model(ABSIM) was used to investigate the potential of combining the above advanced cycles with the advanced fluids. ABSIM is capable of modeling varying cycle configurations with different working fluids. Performance parameters of the cycles, including coefficient of performance (COP) and heat duties, were investigated as functions of different operating parameters in the cooling mode for both the NH {sub 3}/H{sub 2}O binary and the NH{sub 3}/H{sub 2}O/LiBr ternary mixtures. High performance potential of GAX and branched GAX cycles using the NH{sub 3}/H{sub 2}O/LiBr ternary fluid mixture was achieved especially at the high range of firing temperatures exceeding 400{degrees}F. The cooling COP`s have been improved by approximately 21% over the COP achieved with the NH{sub 3}/H{sub 2}O binary mixtures. These results show the potential of using advanced cycles with advanced fluid mixtures (ternary or quaternary fluid mixtures).

  9. Vapor-liquid equilibria in the system NH{sub 3} + H{sub 2}O + LiBr. 2: Data correlation

    SciTech Connect (OSTI)

    Peters, R.; Korinth, C.; Keller, J.U. [Univ. of Siegen (Germany). Institute Fluid- and Thermodynamics

    1995-07-01T23:59:59.000Z

    The systems ammonia + water (NH{sub 3} + H{sub 2}O) and water + lithium bromide (H{sub 2}O + LiBr) provide two working pairs most often used today in air-conditioning systems and systems for reusing industrial waste heat, such as absorption heat pumps and heat transformers. A quasi-chemical reaction model has been developed to correlate vapor-liquid equilibrium data for the system ammonia (NH{sub 3}) + water (H{sub 2}O) + lithium bromide (LiBr) in the temperature range form 303.15 to 473.15 K and at pressures up to 2.0 MPa. this model assumes the formation of ion clusters, i.e., Li{sup +} and Br{sup {minus}} ions surrounded by ammonia and water molecules. Further, ammonia nd water molecules are assumed to form a second species of complexes. The activities of the various components in the liquid phase are modeled by the NRTL equation. The vapor phase, assumed to consist of ammonia and water only, is modeled by the equation of state of Ishikawa, Chung, and Lu.

  10. Lead (II) selenite halides Pb{sub 3}(SeO{sub 3}){sub 2}X{sub 2} (X = Br, I): Synthesis and crystal structure

    SciTech Connect (OSTI)

    Berdonosov, P. S., E-mail: berdonosov@inorg.chem.msu.ru; Olenev, A. V.; Dolgikh, V. A. [Moscow State University (Russian Federation)

    2012-03-15T23:59:59.000Z

    Two lead selenite halides, Pb{sub 3}(SeO{sub 3}){sub 2}Br{sub 2} and Pb{sub 3}(SeO{sub 3}){sub 2}I{sub 2}, have been prepared by solid-phase synthesis and structurally characterized. These compounds are isotypic and can be considered 3D with a microporous framework composed of lead polyhedra (distorted Archimedean antiprisms formed by oxygen and halogen atoms). The framework contains channels oriented in the [010] direction. These channels contain selenium atoms, which are bound with framework oxygen atoms belonging to different lead polyhedra.

  11. Parity violation in nuclear magnetic resonance frequencies of chiral tetrahedral tungsten complexes NWXYZ (X, Y, Z = H, F, Cl, Br or I)

    SciTech Connect (OSTI)

    Nahrwold, Sophie, E-mail: nahrwold@fias.uni-frankfurt.de; Berger, Robert, E-mail: r.berger@fias.uni-frankfurt.de [Frankfurt Institute for Advanced Studies, Goethe-University Frankfurt am Main, Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main (Germany) [Frankfurt Institute for Advanced Studies, Goethe-University Frankfurt am Main, Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main (Germany); Clemens-Schpf-Institute, Technical University Darmstadt, Petersenstr. 22, D-64287 Darmstadt (Germany); Schwerdtfeger, Peter, E-mail: p.a.schwerdtfeger@massey.ac.nz [Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University Albany, Private Bag 102904, North Shore City, Auckland 0745 (New Zealand) [Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University Albany, Private Bag 102904, North Shore City, Auckland 0745 (New Zealand); Fachbereich Chemie, Philipps-Universitt Marburg, Hans-Meerwein-Str., D-35032 Marburg (Germany)

    2014-01-14T23:59:59.000Z

    Density functional theory within the two-component quasi-relativistic zeroth-order regular approximation (ZORA) is used to predict parity violation shifts in {sup 183}W nuclear magnetic resonance shielding tensors of chiral, tetrahedrally bonded tungsten complexes of the form NWXYZ (X, Y, Z = H, F, Cl, Br or I), as well as for the heavier systems NWHAtF and NWH(117)F for comparison. The calculations reveal that sub-mHz accuracy is required to detect such tiny effects in this class of compounds, and that parity violation effects are very sensitive to the choice of ligands.

  12. Synthesis and the crystal and molecular structures of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 Mono- and dibromohydrates (HL)Br . 3H{sub 2}O and (H{sub 2}L)Br{sub 2} . 3H{sub 2}O

    SciTech Connect (OSTI)

    Kovalchukova, O. V., E-mail: okovalchukova@mail.ru [Peoples' Friendship University of Russia (Russian Federation); Stash, A. I.; Belsky, V. K. [Karpov Institute of Physical Chemistry (Russian Federation); Strashnova, S. B.; Zaitsev, B. E.; Ryabov, M. A. [Peoples' Friendship University of Russia (Russian Federation)

    2009-01-15T23:59:59.000Z

    4-(Piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 monobromohydrate (HL)Br . 3H{sub 2}O (I) and 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 dibromohydrate (H{sub 2}L)Br{sub 2} . 3H{sub 2}O (II) are isolated in the crystalline state. The crystal structures of compounds I and II are determined using X-ray diffraction. It is established that the protonation of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 proceeds primarily through the pyridine atom at pH 2-3. The attachment of the second proton occurs through the piperidine nitrogen atom at pH {approx} 1.

  13. Gamma-Ray Simulated Spectrum Deconvolution of a LaBr3 1- 1-in. Scintillator for Nondestructive ATR Fuel Burnup On-Site Predictions

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

    Navarro, Jorge; Ring, Terry A.; Nigg, David W.

    2015-03-01T23:59:59.000Z

    A deconvolution method for a LaBr3 1"x1" detector for nondestructive Advanced Test Reactor (ATR) fuel burnup applications was developed. The method consisted of obtaining the detector response function, applying a deconvolution algorithm to 1x1 LaBr3 simulated, data along with evaluating the effects that deconvolution have on nondestructively determining ATR fuel burnup. The simulated response function of the detector was obtained using MCNPX as well with experimental data. The Maximum-Likelihood Expectation Maximization (MLEM) deconvolution algorithm was selected to enhance one-isotope source-simulated and fuel- simulated spectra. The final evaluation of the study consisted of measuring the performance of the fuel bumup calibrationmorecurve for the convoluted and deconvoluted cases. The methodology was developed in order to help design a reliable, high resolution, rugged and robust detection system for the ATR fuel canal capable of collecting high performance data for model validation, along with a system that can calculate burnup and using experimental scintillator detector data.less

  14. Gamma-Ray Simulated Spectrum Deconvolution of a LaBr3 1- 1-in. Scintillator for Nondestructive ATR Fuel Burnup On-Site Predictions

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

    Navarro, Jorge; Ring, Terry A.; Nigg, David W.

    2015-03-01T23:59:59.000Z

    A deconvolution method for a LaBr3 1"x1" detector for nondestructive Advanced Test Reactor (ATR) fuel burnup applications was developed. The method consisted of obtaining the detector response function, applying a deconvolution algorithm to 1x1 LaBr3 simulated, data along with evaluating the effects that deconvolution have on nondestructively determining ATR fuel burnup. The simulated response function of the detector was obtained using MCNPX as well with experimental data. The Maximum-Likelihood Expectation Maximization (MLEM) deconvolution algorithm was selected to enhance one-isotope source-simulated and fuel- simulated spectra. The final evaluation of the study consisted of measuring the performance of the fuel bumup calibration curve for the convoluted and deconvoluted cases. The methodology was developed in order to help design a reliable, high resolution, rugged and robust detection system for the ATR fuel canal capable of collecting high performance data for model validation, along with a system that can calculate burnup and using experimental scintillator detector data.

  15. Gamma-Ray Simulated Spectrum Deconvolution of a LaBr? 1-in. x 1-in. Scintillator for Nondestructive ATR Fuel Burnup On-Site Predictions

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

    Navarro, Jorge; Ring, Terry A.; Nigg, David W.

    2015-03-01T23:59:59.000Z

    A deconvolution method for a LaBr? 1"x1" detector for nondestructive Advanced Test Reactor (ATR) fuel burnup applications was developed. The method consisted of obtaining the detector response function, applying a deconvolution algorithm to 1x1 LaBr? simulated, data along with evaluating the effects that deconvolution have on nondestructively determining ATR fuel burnup. The simulated response function of the detector was obtained using MCNPX as well with experimental data. The Maximum-Likelihood Expectation Maximization (MLEM) deconvolution algorithm was selected to enhance one-isotope source-simulated and fuel- simulated spectra. The final evaluation of the study consisted of measuring the performance of the fuel burnup calibrationmorecurve for the convoluted and deconvoluted cases. The methodology was developed in order to help design a reliable, high resolution, rugged and robust detection system for the ATR fuel canal capable of collecting high performance data for model validation, along with a system that can calculate burnup and using experimental scintillator detector data.less

  16. Band Structure Parameters and Fermi Resonances of Exciton-Polaritons in CsI and CsBr under Hydrostatic Pressure

    SciTech Connect (OSTI)

    Lipp, M J; Yoo, C H; Strachan, D; Daniels, W B

    2005-11-29T23:59:59.000Z

    Most alkali halides crystallize in the fcc sodium chloride structure. In contrast, with the exception of CsF, the Cs-halides form the simple cubic cesium chloride (CsCl) structure at ambient conditions and they have a substantially different electronic structure than other alkali halides; in particular, they have several nearly degenerate electronic levels near the Brillouin zone center. Highly resolved Three-Photon Spectroscopy (TPS) measurements allow direct observation of the near band edge structure and, in the case of CsI, probe more states than one-photon techniques. A number of interesting phenomena, among them level repulsion (Fermi resonance), occur as these levels are tuned through one another by application of hydrostatic pressure. To the best of our knowledge, this has been observed for CsBr for the first time. Doubling the photon energy range compared to a previous publication [see Yoo et al. PRL 84, 3875 (2000)] allows direct observation of the n=1, 2 and 3 exciton-polariton members of the {Lambda}{sub 8}{sup -}-{Lambda}{sub 6}{sup +} transition in CsI and lets us establish unambiguous values for the bandgap (6.139 eV), binding energy (0.265 eV) and their pressure dependence up to 7 kbar. Similarly to CsI, the CsBr linewidth of the lowest {Lambda}{sub 4}{sup -} polariton (A) decreases upon compression.

  17. Design and experimental testing of the performance of an outdoor LiBr/H{sub 2}O solar thermal absorption cooling system with a cold store

    SciTech Connect (OSTI)

    Agyenim, Francis; Knight, Ian; Rhodes, Michael [The Welsh School of Architecture, Bute Building, King Edward VII Avenue, Cardiff University, Cardiff, CF10 3NB Wales (United Kingdom)

    2010-05-15T23:59:59.000Z

    A domestic-scale prototype experimental solar cooling system has been developed based on a LiBr/H{sub 2}O absorption system and tested during the 2007 summer and autumn months in Cardiff University, UK. The system consisted of a 12 m{sup 2} vacuum tube solar collector, a 4.5 kW LiBr/H{sub 2}O absorption chiller, a 1000 l cold storage tank and a 6 kW fan coil. The system performance, as well as the performances of the individual components in the system, were evaluated based on the physical measurements of the daily solar radiation, ambient temperature, inlet and outlet fluid temperatures, mass flow rates and electrical consumption by component. The average coefficient of thermal performance (COP) of the system was 0.58, based on the thermal cooling power output per unit of available thermal solar energy from the 12 m{sup 2} Thermomax DF100 vacuum tube collector on a hot sunny day with average peak insolation of 800 W/m{sup 2} (between 11 and 13.30 h) and ambient temperature of 24 C. The system produced an electrical COP of 3.6. Experimental results prove the feasibility of the new concept of cold store at this scale, with chilled water temperatures as low as 7.4 C, demonstrating its potential use in cooling domestic scale buildings. (author)

  18. Ab initio reaction path energetics for the CX dissociations of C{sub 6}H{sub 5}X{sup +} with X = H, F, Cl, and Br.

    SciTech Connect (OSTI)

    Klippenstein, S. J.; Chemistry

    1997-11-01T23:59:59.000Z

    The energetics of the CX dissociations of C{sub 6}H{sub 6}{sup +}, C{sub 6}H{sub 5}F{sup +}, C{sub 6}H{sub 5}Cl{sup +}, C{sub 6}H{sub 5}Br{sup +}, and C{sub 10}H{sub 8}{sup +} are investigated with various ab initio quantum chemical simulators. The primary focus is the determination of the energetics as a function of the CX bond length at the MP2 level for the C{sub 6}H{sub 5}X{sup +}dissociation paths leading to the lowest energy products [C{sub 6}H{sub 5}({sup 1}A{sub 1}) + X]. The bending force constants along this path are determined at either the HF or MP2 level. The absolute energetics of the various reactants and products are also studied at the MP2 and B3LYP levels including the dissociation of C{sub 10}H{sub 8}{sup +}. A combination of CCSD(T)/6-31G* and MP2/6-311G(2df,2p) calculations are employed in the determination of higher level estimates for the key reactants and products in the dissociation of the benzene cation. The key dissociation paths for this dissociation are also studied at a higher level (CASPT2). For the halogen-producing dissociations the energetics are investigated for each of the three separate orientations of the radical p-orbital in the halogen atom. The various results obtained illustrate the increasing strength of the long-range interactions for the progression from H to F to Cl to Br. Correspondingly, one expects the transition state to be more and more phase space theory like for this same progression. For the C---Br dissociation it seems very unlikely that short-range interactions will play any role in determining the reactive flux. In contrast, short-range repulsions are again expected to play an important role for the C---H dissociations in both C{sub 6}H{sub 6}{sup +}and C{sub 10}H{sub 8}{sup +}. The present results also indicate the dominant importance of the singlet phenyl cation channel to the dissociation dynamics.

  19. Infrared phonon modes in multiferroic single-crystal FeTe2O5Br

    SciTech Connect (OSTI)

    Miller, K. H.; Xu, X. S.; Berger, H.; Craciun, V.; Xi, Xiaoxiang; Martin, C.; Carr, G. L.; Tanner, D. B.

    2013-06-01T23:59:59.000Z

    Reflection and transmission as a function of temperature (7300 K and 5300 K respectively) have been measured on single crystals of the multiferroic compound FeTe2O5Br utilizing light spanning from the far infrared to the visible. The complex dielectric function and other optical properties were obtained via Kramers-Kronig analysis and by fits to a Drude-Lortentz model. Analysis of the anisotropic excitation spectra via Drude-Lorentz fitting and lattice dynamical calculations have led to the observation of 43 of the 53 modes predicted along the b axis of the monoclinic cell. The phonon response parallel to the a and c axes are also presented. Assignments to groups (clusters) of phonons have been made and trends within them are discussed in light of our calculated displacement patterns.

  20. Neutron scattering evidence for isolated spin-1/2 ladders in (C5D12N)2CuBr4

    SciTech Connect (OSTI)

    Savici, Andrei T [ORNL; Granroth, Garrett E [ORNL; Broholm, Collin L [ORNL; Pajerowski, Daniel M. [University of Florida, Gainesville; Brown, Craig [National Institute of Standards and Technology (NIST); Talham, Daniel R. [University of Florida, Gainesville; Meisel, Mark W. [University of Florida, Gainesville; Schmidt, K. P. [Technische Universit Dortmund, Germany; Uhrig, G. S. [Technische Universit Dortmund, Germany; Nagler, Stephen E [ORNL

    2009-01-01T23:59:59.000Z

    Inelastic neutron scattering was used to determine the spin Hamiltonian for the singlet ground state system (C5D12N)2CuBr4 (BPCB). A 2-leg spin 1/2 ladder model, with J? = 1:084 0:005 meV and Jk = 0:321 0:008 meV, accurately describes the data. The experimental limit on the inter-ladder exchange constant is jJ0j 0.005 meV, and the limit on diagonal, intra-ladder exchange is jJF j 0.1 meV. The experimental ratios of intra-ladder bond energies are consistent with the predictions of continuous unitary transformations calculations.

  1. Energy resolution of gamma-ray spectroscopy of JET plasmas with a LaBr{sub 3} scintillator detector and digital data acquisition

    SciTech Connect (OSTI)

    Nocente, M.; Tardocchi, M.; Grosso, G.; Perelli Cippo, E.; Pietropaolo, A.; Proverbio, I.; Gorini, G. [Dipartimento di Fisica, Universita degli Studi di Milano-Bicocca and Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, 20125 Milano (Italy); Chugunov, I.; Gin, D.; Shevelev, A. [A. F. Ioffe Physico-Technical Institute, St. Petersburg 194021 (Russian Federation); Pereira, R. C.; Fernandes, A. M.; Neto, A.; Sousa, J. [Associacao EURATOM/IST Centro de Fusao Nuclear, Instituto Superior Tecnico, 1049-001 Lisboa (Portugal); Edlington, T.; Kiptily, V.; Syme, B. [Culham Centre for Fusion Energy, Culham OX143DB (United Kingdom); Murari, A. [Consorzio RFX, 35127 Padova (Italy); Collaboration: JET-EFDA Contributors

    2010-10-15T23:59:59.000Z

    A new high efficiency, high resolution, fast {gamma}-ray spectrometer was recently installed at the JET tokamak. The spectrometer is based on a LaBr{sub 3}(Ce) scintillator coupled to a photomultiplier tube. A digital data acquisition system is used to allow spectrometry with event rates in excess of 1 MHz expected in future JET DT plasmas. However, at the lower rates typical of present day experiments, digitization can degrade the energy resolution of the system, depending on the algorithms used for extracting pulse height information from the digitized pulses. In this paper, the digital and analog spectrometry methods were compared for different experimental conditions. An algorithm based on pulse shape fitting was developed, providing energy resolution equivalent to the traditional analog spectrometry method.

  2. Compared Raman study of the phase transitions in K2ZnCl4 and Rb2ZnCl4, Rb2ZnBr4, K2SeO4

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    787 Compared Raman study of the phase transitions in K2ZnCl4 and Rb2ZnCl4, Rb2ZnBr4, K2SeO4 M to the incommensurate phase is discussed for the four compounds K2SeO4, K2ZnCl4, Rb2ZnCl4 and Rb2ZnBr4 on the basis measurements on K2ZnC'4 known to exhibit successive phase transitions similar to those of K2SeO4

  3. Erratum to Measurement of $?(p \\bar p \\to Z) \\cdot Br(Z \\to ??)$ at $\\bm{\\sqrt{s}=}$1.96 TeV, published in Phys. Rev. D {71}, 072004 (2005)

    E-Print Network [OSTI]

    V. M. Abazov; for the D0 Collaboration

    2008-01-23T23:59:59.000Z

    A change in estimated integrated luminosity (from 226 pb$^{-1} to 257 pb$^{-1}$ leads to a corrected value for ${\\sigma (p \\bar p \\to Z) \\cdot}$Br${(Z \\to \\tau \\tau)}$ of $209\\pm13(stat.)\\pm16(syst.)\\pm13(lum) pb.

  4. Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty-Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9-

    E-Print Network [OSTI]

    Foulger, G. R.

    Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty- Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9- 11, 2009. Monitoring Geothermal Processes with Microearthquake Mechanisms Bruce R. Julian, U. S

  5. Energy levels, radiative rates and electron impact excitation rates for transitions in He-like Ga XXX, Ge XXXI, As XXXII, Se XXXIII and Br XXXIV

    E-Print Network [OSTI]

    Aggarwal, Kanti M

    2013-01-01T23:59:59.000Z

    We report calculations of energy levels, radiative rates and electron impact excitation cross sections and rates for transitions in He-like Ga XXX, Ge XXXI, As XXXII, Se XXXIII and Br XXXIV. The {\\sc grasp} (general-purpose relativistic atomic structure package) is adopted for calculating energy levels and radiative rates. For determining the collision strengths, and subsequently the excitation rates, the Dirac Atomic R-matrix Code ({\\sc darc}) is used. Oscillator strengths, radiative rates and line strengths are reported for all E1, E2, M1 and M2 transitions among the lowest 49 levels of each ion. Additionally, theoretical lifetimes are provided for all 49 levels of the above five ions. Collision strengths are averaged over a Maxwellian velocity distribution and the effective collision strengths obtained listed over a wide temperature range up to 10$^{8}$ K. Comparisons are made with similar data obtained using the Flexible Atomic Code ({\\sc fac}) to highlight the importance of resonances, included in calcul...

  6. Intrinsic vs. extrinsic inelastic scattering contributions in kappa-(BEDT-TTF){sub 2}Cu[N(CN){sub 2}]Br - transport measurements under hydrostatic pressure.

    SciTech Connect (OSTI)

    Strack, C.; Akinci, C.; Paschenko, V.; Wolf, B.; Uhrig, E.; Assmus, W.; Schreuer, J.; Wiehl, L.; Schlueter, J.; Wosnitza, J.; Schweitzer, D.; Lang , M.; Materials Science Division; J.W. Goethe-Universitat Frankfurt; Inst.fur Festkorperphysik; Univ. Stuttgart

    2006-12-05T23:59:59.000Z

    Interlayer-resistivity measurements have been performed on a variety of single crystals of the quasi-two-dimensional organic superconductor {kappa}-(BEDT-TTF){sub 2}Cu[N(CN){sub 2}]Br. These crystals, which have been synthesized along two somewhat different routes, reveal strongly sample-dependent resistivity profiles: while the majority of samples shows a more or less pronounced {rho}(T) maximum around 90 K with a semiconducting behavior above, some crystals remain metallic at all temperatures T {le} 300 K. In the absence of significant differences in the crystals' structural parameters and chemical compositions, as proved by high-resolution X-ray and electron-probe-microanalysis, these results indicate that real structure phenomena, i.e. disorder and/or defects, may strongly affect the inelastic scattering. Comparative resistivity measurements under He-gas pressure on two crystals with strongly differing {rho}(T) profiles indicate that these additional, sample-dependent scattering contributions are characterized by an extraordinarily strong pressure response which is highly non-monotonous as a function of temperature. No correlations have been found between the strength of these scattering contributions and other characteristic properties such as the glass transition at T{sub g} = 77 K, the temperature T* {approx} 40 K, where the temperature dependence of the resistivity changes rather abruptly, or the superconducting transition temperature T{sub c}.

  7. Crystal structure and magnetic properties of two new cobalt selenite halides: Co{sub 5}(SeO{sub 3}){sub 4} X {sub 2} (X=Cl, Br)

    SciTech Connect (OSTI)

    Becker, Richard [Department of Inorganic Chemistry, Stockholm University, S-106 91 Stockholm (Sweden)], E-mail: richard@inorg.su.se; Prester, Mladen [Institute of Physics, P.O. Box 304, HR-10000 Zagreb (Croatia); Berger, Helmuth [Institut de Physique de la Matiere Complexe, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne (Switzerland); Hui Lin, Ping [Institut de Physique de la Matiere Complexe, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne (Switzerland); Institute of Physics, Academia Sinica Nankang, Taipei 11529, Taiwan, ROC (China); Johnsson, Mats [Department of Inorganic Chemistry, Stockholm University, S-106 91 Stockholm (Sweden); Drobac, Djuro [Institute of Physics, P.O. Box 304, HR-10000 Zagreb (Croatia); Zivkovic, Ivica [Institute of Physics, P.O. Box 304, HR-10000 Zagreb (Croatia)

    2007-03-15T23:59:59.000Z

    Two new isostructural cobalt selenite halides Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} have been synthesized. They crystallize in the triclinic system space group P-1 with the following lattice parameters for Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2}: a=6.4935(8) A, b=7.7288(8) A, c=7.7443(10) A, {alpha}=66.051(11){sup o}, {beta}=73.610(11){sup o}, {gamma}=81.268(9){sup o}, and Z=1. The crystal structures were solved from single-crystal X-ray data, R1=3.73 and 4.03 for Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}, respectively. The new compounds are isostructural to Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}. Magnetic susceptibility measurements on oriented single-crystalline samples show anisotropic response in a broad temperature range. The anisotropic susceptibility is quantitatively interpreted within the zero-field splitting schemes for Co{sup 2+} and Ni{sup 2+} ions. Sharp low-temperature susceptibility features, at T {sub N}=18 and 20 K for Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}, respectively, are ascribed to antiferromagnetic ordering in a minority magnetic subsystem. In isostructural Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} magnetically ordered subsystem represents a majority fraction (T {sub N}=46 K). Nevertheless, anisotropic susceptibility of Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} is dominated at low temperatures by a minority fraction, subject to single-ion anisotropy effects and increasing population of S{sub z} =0 (singlet) ground state of octahedrally coordinated Ni{sup 2+}. - Graphical abstract: Two new iso-structural cobalt selenite halides Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} have been synthesized which are iso-structural to Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}. Magnetic susceptibility measurements on oriented single-crystalline samples show anisotropic response in a broad temperature range, revealing significant single-ion anisotropy effects.

  8. Improvement of {gamma}-ray energy resolution of LaBr{sub 3}:Ce{sup 3+} scintillation detectors by Sr{sup 2+} and Ca{sup 2+} co-doping

    SciTech Connect (OSTI)

    Alekhin, M. S.; Haas, J. T. M. de; Khodyuk, I. V.; Dorenbos, P. [Department of Radiation Science and Technology, Faculty of Applied Sciences, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands)] [Department of Radiation Science and Technology, Faculty of Applied Sciences, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands); Kraemer, K. W. [Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern (Switzerland)] [Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern (Switzerland); Menge, P. R. [Saint-Gobain Crystals, 17900 Great Lakes Parkway, Hiram, Ohio 44234 (United States)] [Saint-Gobain Crystals, 17900 Great Lakes Parkway, Hiram, Ohio 44234 (United States); Ouspenski, V. [Saint Gobain Recherche, 39, Quai Lucien Lefranc, 93303 Aubervilliers (France)] [Saint Gobain Recherche, 39, Quai Lucien Lefranc, 93303 Aubervilliers (France)

    2013-04-22T23:59:59.000Z

    Commercially available LaBr{sub 3}:5% Ce{sup 3+} scintillators show with photomultiplier tube readout about 2.7% energy resolution for the detection of 662 keV {gamma}-rays. Here we will show that by co-doping LaBr{sub 3}:Ce{sup 3+} with Sr{sup 2+} or Ca{sup 2+} the resolution is improved to 2.0%. Such an improvement is attributed to a strong reduction of the scintillation light losses that are due to radiationless recombination of free electrons and holes during the earliest stages (1-10 ps) inside the high free charge carrier density parts of the ionization track.

  9. High field magnetotransport and point contact Andreev reflection measurements on CuCr{sub 2}Se{sub 4} and CuCr{sub 2}Se{sub 3}BrDegenerate magnetic semiconductor single crystals

    SciTech Connect (OSTI)

    Borisov, K., E-mail: borisovk@tcd.ie; Coey, J. M. D.; Stamenov, P. [School of Physics and CRANN, Trinity College, Dublin 2 (Ireland); Alaria, J. [Department of Physics, University of Liverpool, Liverpool L69 7ZE (United Kingdom)

    2014-05-07T23:59:59.000Z

    Single crystals of the metallically degenerate fully magnetic semiconductors CuCr{sub 2}Se{sub 4} and CuCr{sub 2}Se{sub 3}Br have been prepared by the Chemical Vapour Transport method, using either Se or Br as transport agents. The high-quality, millimetre-sized, octahedrally faceted, needle- and platelet-shaped crystals are characterised by means of high field magnetotransport (?{sub 0}H? 14?T) and Point Contact Andreev Reflection. The relatively high spin polarisation observed |P|>0.56, together with the relatively low minority carrier effective mass of 0.25 m{sub e}, and long scattering time 10{sup ?13}?s, could poise these materials for integration in low- and close-to-room temperature minority injection bipolar heterojunction transistor demonstrations.

  10. Impact of ALD Coating on Li/Mn-rich Cathode Materials

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  11. Surface preparation for ALD of High-k dielectrics on InGaAs

    E-Print Network [OSTI]

    Melitz, Wilhelm

    2012-01-01T23:59:59.000Z

    Lux-Steiner, Materials Science and Engineering B-Solid StatePearton, Materials Science and Engineering B-Solid StatePearton, Materials Science and Engineering B-Solid State

  12. al2o3 metodom ald: Topics by E-print Network

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

    the macroscopic-scale friction laws known as Coulomb Goddard III, William A. 26 European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2AO.1.4...

  13. Device Fabrication and Processing > Thin Film ALD, RF/DC Magnetic Materials and Co-

    E-Print Network [OSTI]

    Das, Suman

    .ien.gatech.edu Materials Processed > Dielectrics: SiO2, Si3N4,SiC, HfO2, ZnO, ZrO2, AlN, TiN, TiO2, Al2O3, additional dielectrics on request > Metals: Al, Cr, Ti, W, Ni, Mo, Pt, Fe, Cu, Ir, Pd, Ag, additional metals by request RIE; HBr-based ICP; Metals Al, Cr, Ti, W, Ag > Wet Etching: SiO2, Si3N4 Metals, Organic materials

  14. NOIJLVaiSINIWaV NOIlVlAldOdNI AOU3N3 Z661

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 3400,Information Administration22)May 28,NOIIVUISINII/UQV61-

  15. Hydrogen for X-group exchange in CH3X, X = Cl, Br, I, OMe and NMe2 by Monomeric [1,2,4-(Me3C)3C5H2]2CeH: Experimental and Computational Support for a Carbenoid Mechanism

    E-Print Network [OSTI]

    Werkema, Evan

    2010-01-01T23:59:59.000Z

    Hydrogen for X-group exchange in CH 3 X, X = Cl, Br, I, OMespectrum in which a single hydrogen atom is statisticallyprobability ellipsoids. The non-hydrogen atoms are refined

  16. =E2s5"J,@O$NJQ?tA*Br$K$*$1$k%Y%$%:E*J}K! --J?6Q>l6a;w$K4p$E$/%"%W%m!<%A --

    E-Print Network [OSTI]

    Iba, Yukito

    =E2s5"J,@O$NJQ?tA*Br$K$*$1$k%Y%$%:E*J}K! -- J?6Q>l6a;w$K4p$E$/%"%W%m! alization $N:$Fq)!#$3$l$OE}7W3XE*$K$$$($PEvA3$N$3$H $G$"$j!"B?AX%Q!s5"%b%k%.!s5"J,@O$G$O%j%C%82s5"$KAjEv)!# $,$"$k$,!"$h$j6=L#?

  17. N 9, quinta-feira, 12 de janeiro de 2012 17ISSN 1677-7042 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/MEC) Assunto: Aprecia a proposta de://portal.mec.gov.br/cne/). Brasília, 11 de janeiro de 2012. ATAÍDE ALVES Secretário Executivo COORDENA??O DE APERFEI?OAMENTO DE docentes. O Presidente da Coordenação de Aperfeiçoamento de Pes- soal de Nível Superior - Capes, no uso das

  18. *** Prices are subject to change. Please contact properties directly to confirm latest prices. Updated: 2/8/2013 1 BR 2 BR 2 BR 2 BR 3 BR 3 BR 4 BR

    E-Print Network [OSTI]

    Behmer, Spencer T.

    -8981 12 months $555 $665 9 months Hunter's Point 12 months $575 $650-$730 9 months Lincoln Townhomes (979

  19. Solid-state synthesis, structure and properties of a novel open-framework cadmium selenite bromide: [Cd{sub 10}(SeO{sub 3}){sub 8}Br{sub 4}]HBrH{sub 2}O

    SciTech Connect (OSTI)

    Chen, Wen-Tong [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, JingGangShan University, 343009 Ji'an, JiangXi (China); Wang, Ming-Sheng; Wang, Guan-E; Chen, Hui-Fen [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Guo, Guo-Cong, E-mail: gcguo@ms.fjirsm.ac.cn [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)

    2013-08-15T23:59:59.000Z

    A novel open-framework cadmium selenite bromide, [Cd{sub 10}(SeO{sub 3}){sub 8}Br{sub 4}]HBrH{sub 2}O (1), has been obtained by a solid-state reaction at 450 C, and the structure has been determined by single-crystal X-ray diffraction analysis. Compound 1 crystallizes in Pbcm of the orthorhombic system: a=10.882(3), b=16.275(5), c=18.728(6) , V=3317(2) {sup 3}, R1/wR2=0.0411/0.0659. Compound 1 is characteristic of a novel 3-D open-framework structure, composing {sub ?}{sup 2}[CdSeO{sub 3}] layers and the pillars of edge-shared CdO{sub 3}Br{sub 2} square pyramids. The lattice water molecules and the HBr molecules locate in the voids of the framework. Optical absorption spectrum of 1 reveals the presence of an optical gap of 1.65 eV. Solid-state photoluminescent study indicates that compound 1 exhibits strong violet emission. TGDSC measurement shows that compound 1 is thermally stable up to 200 C. - Graphical abstract: A metal selenite halide has been synthesized and features a 3-D open-framework structure, composing edge-shared CdO{sub 8} decahedra and pillars of edge-sharing pentahedra. UVvis, TGDSC and luminescent measurements are also reported. Highlights: This paper reports a novel cadmium selenite bromide obtained by an intermediate-temperature solid-state reaction. The title compound is characteristic of a novel 3-D open-framework structure, composing {sub ?}{sup 2}[CdSeO{sub 3}] layers and the pillars of edge-shared CdO{sub 3}Br{sub 2} square pyramids. The title compound is thermally stable up to 200 C. The title compound has an optical gap of 1.65 eV and exhibits strong violet emission.

  20. Experimental and ab initio studies of the reactive processes in gas phase i-C{sub 3}H{sub 7}Br and i-C{sub 3}H{sub 7}OH collisions with potassium ions

    SciTech Connect (OSTI)

    Lpez, E.; Lucas, J. M.; Andrs, J. de; Albert, M.; Aguilar, A., E-mail: a.aguilar@ub.edu [Departament de Qumica Fsica, Institut de Qumica Terica i Computacional (IQTCUB), Universitat de Barcelona, Mart i Franqus, 1, 08028 Barcelona (Spain); Bofill, J. M. [Departament de Qumica Orgnica, Institut de Qumica Terica i Computacional (IQTCUB), Universitat de Barcelona, Mart i Franqus, 1, 08028 Barcelona (Spain); Bassi, D. [Dipartimento di Fisica, Universit degli Studi di Trento, 38123 Povo-Trento (Italy)

    2014-10-28T23:59:59.000Z

    Collisions between potassium ions and neutral i-C{sub 3}H{sub 7}Br and i-C{sub 3}H{sub 7}OH, all in their electronic ground state, have been studied in the 0.1010.00 eV center of mass (CM) collision energy range, using the radiofrequency-guided ion beam technique. In K{sup +} + i-C{sub 3}H{sub 7}Br collisions KHBr{sup +} formation was observed and quantified, while the analogous KH{sub 2}O{sup +} formation in K{sup +} + i-C{sub 3}H{sub 7}OH was hardly detected. Moreover, formation of the ion-molecule adducts and their decomposition leading to C{sub 3}H{sub 7}{sup +} and either KBr or KOH, respectively, have been observed. For all these processes, absolute cross-sections were measured as a function of the CM collision energy. Ab initio structure calculations at the MP2 level have given information about the potential energy surfaces (PESs) involved. In these, different stationary points have been characterized using the reaction coordinate method, their connectivity being ensured by using the intrinsic-reaction-coordinate method. From the measured excitation function for KHBr{sup +} formation the corresponding thermal rate constant at 303 K has been calculated. The topology of the calculated PESs allows an interpretation of the main features of the reaction dynamics of both systems, and in particular evidence the important role played by the potential energy wells in controlling the reactivity for the different reaction channels.

  1. Use of InSpector{sup TM} 1 1000 Instrument with LaBr{sub 3} for Nuclear Criticality Safety (NCS) Applications at the Westinghouse Hematite Decommissioning Project (HDP) - 13132

    SciTech Connect (OSTI)

    Pritchard, Megan [Nuclear Safety Associates, P.O. Box 471488, Charlotte, NC 28247 (United States)] [Nuclear Safety Associates, P.O. Box 471488, Charlotte, NC 28247 (United States); Guido, Joe [System One Services, 12 Federal St. Ste. 205, Pittsburgh, PA 15212 (United States)] [System One Services, 12 Federal St. Ste. 205, Pittsburgh, PA 15212 (United States)

    2013-07-01T23:59:59.000Z

    The Westinghouse Hematite Decommissioning Project (HDP) is a former nuclear fuel cycle facility that is currently undergoing decommissioning. One aspect of the decommissioning scope is remediation of buried nuclear waste in unlined burial pits. The current Nuclear Criticality Safety program relies on application of criticality controls based on radiological setpoints from a 2 x 2 Sodium Iodide (NaI) detector. Because of the nature of the material buried (Low Enriched Uranium (LEU), depleted uranium, thorium, and radium) and the stringent threshold for application of criticality controls based on waste management (0.1 g {sup 235}U/L), a better method for {sup 235}U identification and quantification has been developed. This paper outlines the early stages of a quick, in-field nuclear material assay and {sup 235}U mass estimation process currently being deployed at HDP. Nuclear material initially classified such that NCS controls are necessary can be demonstrated not to require such controls and dispositioned as desired by project operations. Using Monte Carlo techniques and a high resolution Lanthanum Bromide (LaBr) detector with portable Multi-Channel Analyzer (MCA), a bounding {sup 235}U mass is assigned to basic geometries of nuclear material as it is excavated. The deployment of these methods and techniques has saved large amounts of time and money in the nuclear material remediation process. (authors)

  2. Radiative rates for E1, E2, M1, and M2 transitions in the Br-like ions Sr IV, Y V, Zr VI, Nb VII, and Mo VIII

    E-Print Network [OSTI]

    Aggarwal, K M

    2015-01-01T23:59:59.000Z

    Energies and lifetimes are reported for the lowest 375 levels of five Br-like ions, namely Sr~IV, Y~V, Zr~VI, Nb~VII, and Mo~VIII, mostly belonging to the 4s$^2$4p$^5$, 4s$^2$4p$^4$4$\\ell$, 4s4p$^6$, 4s$^2$4p$^4$5$\\ell$, 4s$^2$4p$^3$4d$^2$, 4s4p$^5$4$\\ell$, and 4s4p$^5$5$\\ell$ configurations. Extensive configuration interaction has been included and the general-purpose relativistic atomic structure package ({\\sc grasp}) has been adopted for the calculations. Additionally, radiative rates are listed among these levels for all E1, E2, M1, and M2 transitions. From a comparison with the measurements, the majority of our energy levels are assessed to be accurate to better than 2\\%, although discrepancies between theory and experiment for a few are up to 6\\%. An accuracy assessment of the calculated radiative rates (and lifetimes) is more difficult, because no prior results exist for these ions.

  3. JOB DESCRIPTION Requisition ID 3165BR

    E-Print Network [OSTI]

    is seeking a qualified individual to design game-infused experience in our Center for Games and Impact of technology to enhance instruction and create new game-infused learning environments. · Coordinates production of instructional concepts, required media, tutorials, assignments, and consideration of modality within our game-infused

  4. 7, 18231847, 2007 tropospheric BrO

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    . Ibrahim 2 , R. Sinreich 2 , U. Frie 2 , and U. Platt 2 1 Max-Planck-Institute for Chemistry, Mainz of tropo- spheric ozone depletion (Hausmann and Platt, 1994; Platt and Lehrer, 1996; Krehe

  5. (Development of Br-77 from LAMPF Facility)

    SciTech Connect (OSTI)

    Not Available

    1985-01-01T23:59:59.000Z

    The research goals of 1984--1985 included continued studies of the 1-halogenated estradiol derivatives and preparation of B- and C- ring vinyl halides of estradiol. The radiohalogenated analogs of these target compounds are proposed to be useful as receptor-binding radiopharmaceuticals in breast cancer therapy. To date, all 1-halogenated derivatives have been prepared and studied. Their 17 {proportional to}-ethynyl derivatives have also been prepared. In vitro receptor-binding studies with estrogen receptors show definite trends with respect to type of halogen attached versus observed receptor-binding affinity. These results were further substantiated using x-ray crystallographic methods. The proposed B- and C- ring vinyl halides have not been successfully synthesized; however, work toward these target compounds is still underway. Other related compounds of current interest include the B-, C-, and D- ring substituted estradiol derivatives. Much of the synthetic work leaking to these compounds has been accomplished and in vitro studies will be performed soon. 10 refs.

  6. The World of Dark Shadows Issue 15

    E-Print Network [OSTI]

    Multiple Contributors

    1978-01-01T23:59:59.000Z

    " he an.w.red br\\Uqua lI* ~han dOD't troUble,' .be an.pped back. "Thank the captain but t.ll h1a I'd rather .ta1 wbere I . -SUit ,oura.lt," be .ald, ahruss.d and turned to go. Wait, ple.... Betore ;you go, oould you get that book tor ? pel...

  7. Enhancement of Br ( B d ? ? + ? - ) / Br ( B s ? ? + ? - ) in supersymmetric unified models

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

    Dutta, Bhaskar; Mimura, Yukihiro

    2015-05-01T23:59:59.000Z

    We explain the 2.3? deviation in the recent measurements of the neutral B meson decays into muon pairs from the standard model prediction in the framework of supersymmetric grand unified models using antisymmetric coupling as a new source of flavor violation. We show a correlation between the Bd????? decay and the CP phase in the Bd?J/?K decay and that their deviations from the standard model predictions can be explained after satisfying constraints arising from various hadronic and leptonic rare decay processes, B-B, K-K oscillation data, and electric dipole moments of electron and neutron. The allowed parameter space is typically represented by pseudoscalar Higgs mass mA?1 TeV and tan?H(?vu/vd)?20 for squark and gluino masses around 2 TeV.

  8. C6H5Br+ f C6H5 + + Br Occurs via Orbiting Transition State

    E-Print Network [OSTI]

    Kim, Myung Soo

    -analyzed ion kinetic energy spectrometry. The rate constant and kinetic energy release distribution have been at high internal energy. The completely loose transition state model, namely the reaction occurring via compared with theoretical calculations. The rate-energy data available over 6 orders of magnitude in time

  9. BR UFF BIG PINEY WILD ROSE BLU E GAP BR UFF UNIT WAMSUT TER

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternativeOperationalAugustDecade5-F, 2012June-19,-2015DecemberI-5BOE

  10. BR UFF BIG PINEY WILD ROSE BLU E GAP BR UFF UNIT WAMSUT TER

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternativeOperationalAugustDecade5-F, 2012June-19,-2015DecemberI-5BOEGas

  11. BR UFF BIG PINEY WILD ROSE BLU E GAP BR UFF UNIT WAMSUT TER

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternativeOperationalAugustDecade5-F,

  12. Hanford Speakers Bureau<br><br>Frequently Asked Questions - Hanford Site

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasReleaseSpeechesHallNot Logged3 Hanford Speakers

  13. Properties and nature of Be stars 30. Reliable physical properties of a semi-detached B9.5e+G8III binary BR CMi = HD 61273 compared to those of other well studied semi-detached emission-line binaries

    E-Print Network [OSTI]

    Harmanec, P; Nemravov, J A; Royer, F; Briot, D; North, P; Lampens, P; Frmat, Y; Yang, S; Boi?, H; Kotkov, L; koda, P; lechta, M; Kor?kov, D; Wolf, M; Zasche, P

    2014-01-01T23:59:59.000Z

    Reliable determination of the basic physical properties of hot emission-line binaries with Roche-lobe filling secondaries is important for developing the theory of mass exchange in binaries. It is a very hard task, however, which is complicated by the presence of circumstellar matter in these systems. So far, only a small number of systems with accurate values of component masses, radii, and other properties are known. Here, we report the first detailed study of a new representative of this class of binaries, BR CMi, based on the analysis of radial velocities and multichannel photometry from several observatories, and compare its physical properties with those for other well-studied systems. BR CMi is an ellipsoidal variable seen under an intermediate orbital inclination of ~51 degrees, and it has an orbital period of 12.919059(15) d and a circular orbit. We used the disentangled component spectra to estimate the effective temperatures 9500(200) K and 4655(50) K by comparing them with model spectra. They corr...

  14. Working Title Scientist 3 Auto req ID 1024BR

    E-Print Network [OSTI]

    Mazzotti, Frank

    of these vegetation management efforts. Will work with the staff and management at the field stations. Reports to the Vegetation Management Section's Invasive Species Unit Lead Scientist and will work closely. Prepares required work orders and reports for planning, implementing and documenting vegetation management

  15. antibody chimeric br96: Topics by E-print Network

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

    (15-17) and that the interaction between CD2 and LFA-3 can mediate adhesion of J Clark; Debbie A Law; David J Paterson; Michael Puklavec; Alan; F. Williams 1988-01-01 342...

  16. 4, 48774913, 2004 BrO in the free

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    . G. Lawrence3 , U. Platt2 , and P. J. Crutzen2, 3 1 Institute for Environmental Physics, Universit depletion events (ODEs)15 (Hausmann and Platt, 1994), over salt lakes (Hebestreit et al., 1999; Stutz et al (Wagner and Platt, 1998; Pundt et al.,20 2000; Fitzenberger et al., 2000; Wagner et al., 2001; Van

  17. au br cu: Topics by E-print Network

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

    I; Read, K F; Rembeczki, S; Reuter, M; Reygers, K; Riabov, V; Riabov, Y; Richardson, E; Roach, D; Roche, G; Rolnick, S D; Romana, A; Rosati, M 2011-01-01 12 Production of omega...

  18. Course syllabus for Math 231br Advanced Algebraic Topology

    E-Print Network [OSTI]

    Quick, Gereon

    Email: gquick@math.harvard.edu Office: Science Center 341 (in the back of the library) Office Hours questions, e.g., the classification of vector bundles and K-theory, and learn about more sophisticated

  19. BaBrI:Eu2 + , a new bright scintillator

    E-Print Network [OSTI]

    Bourret-Courchesne, E.D.

    2010-01-01T23:59:59.000Z

    of a divalent europium 5d-4f transition. F igureto the divalent europium 5d-4f broadband

  20. Abraham Hot Springs Geothermal Area Northern Basin and Range...

    Open Energy Info (EERE)

    Brophy br Model br Moeck br Beardsmore br Type br Volume br Geothermal br Region Mean br Reservoir br Temp br Mean br Capacity Abraham Hot Springs Geothermal Area Northern Basin...

  1. QSAR study of structurally unrelated substrates of MDR efflux pump VmrA from V. parahaemolyticus Rudolf Kiralj and Mrcia Miguel Castro Ferreira. marcia@iqm.unicamp.br, rudolf@iqm.unicamp.br, http://lqta.iqm.unicamp.br

    E-Print Network [OSTI]

    Ferreira, Márcia M. C.

    QSAR study of structurally unrelated substrates of MDR efflux pump VmrA from V. parahaemolyticus classes can be observed: good (G), moderately good (M) and poor (P1, P2) substrates of the VmrA pump, and periplasmic). This provokes allosteric changes in the structure of this MDR efflux pump, and opens its

  2. Chemometric and QSAR prediction of the multidrug resistance of VmrA efflux pump from Vibrio parahaemolyticus Rudolf Kiralj and Mrcia Miguel Castro Ferreira. marcia@iqm.unicamp.br, rudolf@iqm.unicamp.br, http://lqta.iqm.unicamp.br

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    HO H NH OH Tetracycline (8) O O O H H HO H H OH H OH H H H O O O O H HO H H NH H HHO O OO O O H H H H OH H OHH H OH NH2 H OH H O H HN HHN NH2 OH H OH HHO H H HN NH2 NH2 Streptomycin (10) H O OH HH H H H

  3. UNiVErSiT LiBrE DE BrUXELLES -cole de Sant Publique MASTEr EN ScienceS de la Sant Publique

    E-Print Network [OSTI]

    Cerf, Nicolas

    S), Maisons de repos pour personnes ges (MrPA) > Gestion du dpartement infirmier et des services infirmiers > Soins infirmiers cliniques. Cette deuxime anne comprend les cours de spcialisation, les stages (9, 10 dpartement infirmier et des services infirmiers), soit vers une orientation plus clinique (Soins infirmiers

  4. Characterization of Thallium Bromide (TlBr) for Room Temperature Radiation Detectors

    E-Print Network [OSTI]

    Smith, Holland McTyeire

    2013-01-01T23:59:59.000Z

    efficiency in GaAs radiation detectors, Nuclear Instrumentscrystals used for radiation detectors, Nuclear Instrumentscrystals used as radiation detectors, Nuclear Science, IEEE

  5. SPECTRUM AND ENERGY LEVELS OF Pr3+ IN ThBr4

    E-Print Network [OSTI]

    Conway, J.G.

    2013-01-01T23:59:59.000Z

    Energy under Contract W-7405-ENG-48 DISCLAIMER This documentunder Contract No. W-7405-Eng-48. REFERENCES 1. M. GENET, P.D.O.E. under contrcct W-7405-ENG-48 This manuscript was

  6. Longpath DOAS observations of surface BrO at Summit, Greenland

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    D. J. , Friess, U. , Platt, U. , Flocke, F. M. , Orlando, J.Chipperfield, M. , Harder, H. , Platt, U. , Sinnhuber, B. ,Peleg, M. , Luria, M. , and Platt, U. : DOAS measurements of

  7. Observations of Cl2, Br2, and I2 in coastal marine air

    E-Print Network [OSTI]

    Finley, B. D; Saltzman, E. S

    2008-01-01T23:59:59.000Z

    K. Hebestreit, and U. Platt (1999), Short-lived alkylJ. , K. Hebestreit, U. Platt, and P. S. Liss (2001), CoastalO. Sebastian, and U. Platt (2004), Ground-based measurements

  8. Bull. Br. arachnol. Soc. (2007) 14 (1), 2729 Zelotes mundus (Araneae: Gnaphosidae) in the

    E-Print Network [OSTI]

    Richner, Heinz

    2007-01-01T23:59:59.000Z

    : a continental species reaches the western Mediterranean coast Martin H. Schmidt* Zoological Institute the Camargue belong to Zelotes mundus (Kulczynski, 1897), which is known from Austria, Hungary and the Balkan

  9. Optimization strategies for sustainable fuel cycle of the BR2 Reactor

    SciTech Connect (OSTI)

    Kalcheva, S.; Van Den Branden, G.; Koonen, E. [SCK-CEN, BR2 Reactor, Boeretang 200, Mol, 2400 (Belgium)

    2013-07-01T23:59:59.000Z

    The objective of the present study is to achieve a sustainable fuel cycle in a long term of reactor operation applying advanced in-core loading strategies. The optimization criteria concern mainly enhancement of nuclear safety by means of reactivity margins and minimization of the operational fuel cycle cost at a given (constant) power level and same or longer cycle length. An important goal is also to maintain the same or to improve the experimental performances. Current developments are focused on optimization of control rods localization; optimization of fresh and burnt fuel assemblies in-core distribution; optimization of azimuth and axial fuel burn up strategies, including fuel assembly rotating and flipping upside down. (authors)

  10. Comparison of CsBr and KBr coated Cu photocathodes: Effects of...

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

    processes, that introduce defect states into the alkali halide bandgap, induced by UV laser irradiation. It is possible that alkali metal formation occurs during UV irradiation...

  11. 144 J.Br.Astron.Assoc. 115,3, 2005 1 Meade LX200

    E-Print Network [OSTI]

    Norton, Andrew J.

    (BCF), offset from the central secondary mirror, in a simple mask with two windows, one of which down to an 80mm glass solar neutral density (ND) filter, as available from Broadhurst Clarkson & Fuller

  12. A mathematical model of a Zn/Br? cell on charge

    E-Print Network [OSTI]

    Mader, Michael Joseph

    1985-01-01T23:59:59.000Z

    technique such as Simpson's rule is not applicable. Instead. the average current density should actually be calculated as a Riemann sum (19). That is. &nnaug = P tng (k) &c(k) k= 1 )14 v:here t, g(k) is the current density of reaction j associated...

  13. Preliminary LEU fuel cycle analyses for the Belgian BR2 reactor

    SciTech Connect (OSTI)

    Deen, J.R.; Snelgrove, J.L.

    1986-01-01T23:59:59.000Z

    Fuel cycle calculations have been performed with reference HEU fuel and LEU fuel using Cd wires or boron as burnable absorbers. The /sup 235/U content in the LEU element has increased 20% to 480g compared to the reference HEU element. The number of fuel plates has remained unchanged while the fuel meat thickness has increased to 0.76 mm from 0.51 mm. The LEU meat density is 5.1 Mg U/m/sup 3/. The reference fuel cycle was a 31 element core operating at 56 MW with a 19.8 day cycle length and eight fresh elements loaded per cycle. Comparable fuel cycle characteristics can be achieved using the proposed LEU fuel element with either Cd wires or boron burnable absorbers. The neutron flux for E/sub n/ > 1 eV changes very little (<5%) in LEU relative to HEU cores. Thermal flux reductions are 5 to 10% in non-fueled positions, and 20 to 30% in fuel elements.

  14. BrUCE BUrGETT School of Interdisciplinary Arts and Sciences

    E-Print Network [OSTI]

    Queitsch, Christine

    monoxide, ozone, nitrogen oxides, aerosols and other metals and in long-range transport of air pollution. Jaffe is a leading expert in global and regional atmospheric pollution, especially mercury, carbon and local air quality impact. T he University of Washington Board of Regents has approved a proposal to name

  15. In AprIl, the BrIdges Center will host a confer-

    E-Print Network [OSTI]

    Hochberg, Michael

    feudalism with labor laws suited to an industrial economy. The new guarantees of workers' rights helped

  16. Observations of Cl2, Br2, and I2 in coastal marine air

    E-Print Network [OSTI]

    Finley, B. D; Saltzman, E. S

    2008-01-01T23:59:59.000Z

    ABS pipe filled with a carbonate-coated glass wool scrubber.The scrubber was prepared by soaking glass wool in a 1% (w/methyl halides, etc. The scrubber should remove acidic

  17. Kurze Mitteilungen-Brief Reports -Communications br6ve Half-space Analysis Basic to the

    E-Print Network [OSTI]

    Siewert, Charles E.

    to the Linearized Boltzmann Equation By C. E. SiewerO), Instituto de Energia At6mica, Cidade Universit/tria, S~o Paulo, Brasil 1. Introduction We wish to consider here the linearized Boltzmann equation written

  18. Vertical-tube aqueous LiBr falling film absorption using advanced surfaces

    SciTech Connect (OSTI)

    Miller, W.A. [Oak Ridge National Lab., TN (United States); Perez-Blanco, H. [Pennsylvania State Univ., University Park, PA (United States)

    1993-10-01T23:59:59.000Z

    A heat and mass transfer test stand was fabricated and used to investigate nonisothermal falling film absorption of water vapor into a solution of aqueous lithium bromide. The absorber was made of borosilicate glass for visual inspection of the failing film. Experiments were conducted on internally cooled tubes of about 0.019 m outside diameter and of 1.53 m length. Testing evaluated a single absorber tube`s performance at varying operating conditions, namely different cooling-water flow rates, solution flow rates, pressures, temperatures, and concentrations. Advanced surfaces were identified that enhanced absorber load and the mass of absorbed vapor. A pin-fin tube with 6.4mm pitch absorbed about 225% more mass than did a smooth tube. A grooved tube was the d best performer with 175% enhancement over the smooth tube. Increasing the cooling water flow rate to 1.893 {times} 10{sup {minus}4} m{sup 3}/s caused about a 300% increase in the mass absorbed for the grooved tube compared with the smooth tube. Results showed that the pin-fin tube with 6.4-mm pitch and the grooved tubes may enhance absorption to levels comparable to chemical enhancement in horizontal smooth tube absorbers. Absorber load, the transport coefficients, and pertinent absorption data are presented as functions of dimensionless numbers. These experimental data will prove useful in formulating analytical tools to predict vertical-tube absorber performance.

  19. Method of increments for the halogen molecular crystals: Cl, Br, and I

    SciTech Connect (OSTI)

    Steenbergen, Krista G. [Physikalische und Theoretische Chemie, Freie Universitt Berlin, Takustr. 3, 14195 Berlin (Germany); MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington 6012 (New Zealand); Gaston, Nicola [MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington 6012 (New Zealand); Mller, Carsten; Paulus, Beate [Physikalische und Theoretische Chemie, Freie Universitt Berlin, Takustr. 3, 14195 Berlin (Germany)

    2014-09-28T23:59:59.000Z

    Method of increments (MI) calculations reveal the n-body correlation contributions to binding in solid chlorine, bromine, and iodine. Secondary binding contributions as well as d-correlation energies are estimated and compared between each solid halogen. We illustrate that binding is entirely determined by two-body correlation effects, which account for >80% of the total correlation energy. One-body, three-body, and exchange contributions are repulsive. Using density-fitting (DF) local coupled-cluster singles, doubles, and perturbative triples for incremental calculations, we obtain excellent agreement with the experimental cohesive energies. MI results from DF local second-order Mller-Plesset perturbation (LMP2) yield considerably over-bound cohesive energies. Comparative calculations with density functional theory and periodic LMP2 method are also shown to be less accurate for the solid halogens.

  20. Characterization of Thallium Bromide (TlBr) for Room Temperature Radiation Detectors

    E-Print Network [OSTI]

    Smith, Holland McTyeire

    2013-01-01T23:59:59.000Z

    1.1 Motivation: Radiation Detection for Homelandgermanium (HPGe) radiation detection technology is superior2006. G. F. Knoll, Radiation Detection and Measurement. John

  1. Spectroscopic Evidence for a High-Spin Br-Fe(IV)-Oxo Intermediate in the

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900 Special Report: IG-0900 DecemberAmes: Phil

  2. Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: CongestionDevelopment ofofthe Public Participation2.Applications,

  3. Br-rich Tips of Calcified Crab Claws are Less Hard but More Fracture

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced Materials Find FindRewindParticleBorn on

  4. Tank Farm Closure & Waste Management Environmental Impact Statement <br>

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

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

  5. Beyond A/B/A/B... Unorthodox Pulse Sequences in

    E-Print Network [OSTI]

    Atomic Layer Deposition Group Develop ALD technology Apply ALD to emerging applications: Solar Cells Quartz Crystal Microbalance (QCM) Heaters Flow Tube N2 Flow H2OTMA Quadrupole Mass Spectrometer (QMS

  6. 2005-3-21 1 Dynamic Equipment and Process Simulation

    E-Print Network [OSTI]

    Rubloff, Gary W.

    reactant in reactor Fast purge Gas inlet Half reaction starts ALD Reactor (P Gas outlet On/off valve ALD Reactor (P = Target P) Gas inlet Gas outlet ALD Reactor Gas inlet Gas outlet Half Viscous flow condition Viscous carrier gas flow replaces reactant effectively during purge Fast purge

  7. First measurement of the ratio of branching fractions BR(Lambda(b) to Lambda(c) mu nu)/BR(Lambda(b) to Lambda(c) pi) at CDF II

    SciTech Connect (OSTI)

    Yu, Shin-shan; /Pennsylvania U.

    2005-01-01T23:59:59.000Z

    In this dissertation, we measure the properties of the lowest-mass beauty baryon, {Lambda}{sub b}. Baryons are the bound states of three quarks. Protons and neutrons, constituents of atomic nuclei, are the most common baryons. Other types of baryons can be produced and studied in the high-energy collider environment. Three-body dynamics makes baryons composed of low mass quarks difficult to study. On the other hand, baryons with one heavy quark simplify the theoretical treatment of baryon structure, since the heavy quark can be treated the same way as the nucleus in the atom. The {Lambda}{sub b} is composed of u, d, and b quarks, where the b quark is much heavier than the other two. Although, it is accessible, little is known about {Lambda}{sub b}. In 1991, UA1 [1] reconstructed 9 {+-} 1 {Lambda}{sub b} {yields} J/{Psi}{Lambda} candidates. In 1996, ALEPH and DELPHI reconstructed the decay {Lambda}{sub b} {yields} {Lambda}{sub c}{sup +}{pi}{sup -} and found only 3-4 candidates [2, 3]. ALEPH measured a {Lambda}{sub b} mass of 5614 {+-} 21 MeV/c{sup 2}, while DELPHI measured 5668 {+-} 18 MeV/c{sup 2}, about 2 {sigma} higher. Subsequently, CDF-I observed 20 {Lambda}{sub b} {yields} J/{Psi}{Lambda} events [4], confirmed the existence of {Lambda}{sub b} unambiguously and made a more precise measurement of {Lambda}{sub b} mass, 5621 {+-} 5 MeV/c{sup 2}. A recent CDF-II measurement by Korn [5] yields 5619.7 {+-} 1.7 MeV/c{sup 2}, which will significantly improve the current world average, 5624 {+-} 9 MeV/c{sup 2}, and resolve the discrepancy of ALEPH and DELPHI.

  8. Biomechanics and tennis Br J Sports Med 2006;40:392396. doi: 10.1136/bjsm.2005.023150

    E-Print Network [OSTI]

    Cooper, Robin L.

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Correspondence to: Professor Elliott, University of Western Australia, Perth, WA, Australia; bruce this development. Muscle pre-tension (elastic energy) In a stretch-shorten cycle, elastic energy stored during

  9. Br J Nutr . Author manuscript Maternal fatty acid intake and fetal growth: evidence for an association in

    E-Print Network [OSTI]

    -Guillain 1 , Olivier Thi baugeorges 2 , Val rie Goua 3 , Guillaume Magnin 3 , Michel Schweitzer 2 , Monique and lactation. Essential fatty acids (EFA) play a major role during pregnancy. They provide the precursors

  10. Finding the missing stratospheric Bry: a global modeling study of CHBr3 and CH2Br2

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    Methanol Ethanol Acetone MEK MTBE CO Methane UCI UCI TOGA/methyl tertiary butyl ether (MTBE), and toluene all ratioedthe observed decay. For MTBE, also a species that is not

  11. Quim. Nova, Vol. 29, No. 3, 555-562, 2006 *e-mail: ebmelo@unioeste.br

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    outros homens, e por um nvel de esco- laridade alto dos pacientes; 2 uma segunda fase, caracterizada

  12. Observations of hydroxyl and peroxy radicals and the impact of BrO at Summit, Greenland in 2007 and 2008

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    D. J. , Friess, U. , Platt, U. , Flocke, F. M. , Orlando, P.1980. Hausmann, M. and Platt, U. : Spectroscopic measurement826833, 1982. Stutz, J. and Platt, U. : Improving long-path

  13. Finding the missing stratospheric Bry: a global modeling study of CHBr3 and CH2Br2

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    and dispersion of a Mexico City pollution out- flow eventon air pollution in the Mexico City Metropolitan Area,pollution transport during the MILAGRO-2006 campaign: a case study of a major Mexico

  14. 12-BR-UT 43-2310-1 Important: Please see the Notice on the first page of

    E-Print Network [OSTI]

    Feschotte, Cedric

    required by the health care reform law for restrictions on annual dollar limits. The annual dollar limits concerning student health insurance coverage. 2013-2014 Designed Especially for the Students of LIMITED BENEFIT HEALTH COVERAGE BENEFITS PROVIDED ARE SUPPLEMENTAL AND ARE NOT INTENDED TO COVER ALL MEDICAL

  15. Marker-Assisted Verification of Hybrids in Pearl Millet-Napiergrass (Pennisetum glaucum [L.] R. Br. x Pennisetum purpureum Schumach.)

    E-Print Network [OSTI]

    Dowling, Charlie

    2012-02-14T23:59:59.000Z

    ; Lewandowski et al., 2003; Khanna et al., 2010). There is a tremendous rate of return of energy production in perennial biomass systems with such low-input requirements. The incorporation of low-input management practices with biomass feedstocks... giganteus Keng., and Brachypodium P. Beauv. (USDA Press Release, 08/12/11). None of these crops, however, are capable of producing both a high biomass feedstock that have superior yield in the establishment year and can be direct seeded. Switchgrass can...

  16. Finding the missing stratospheric Bry: a global modeling study of CHBr3 and CH2Br2

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    C-130 T0 T1 G1 Ethane Propane i-Butane n-Butane i-Pentane n-ppbv) Ethane Ethene Ethyne Propane Propene i-Butane n-Butanee.g. , ethane, ethene, propane, propane, methanol, ethanol,

  17. Synergistic effects of 2-aminoethylisothiuronoium.Br.HBr (AET) and dimethyl sulfoxide (DMSO) in chemical radioprotection of mice

    E-Print Network [OSTI]

    Frei, Melvin Ray

    1968-01-01T23:59:59.000Z

    of ten each, were exposed to various levels of acute whole body gamma irradiation from a 60 Cc . ource, A dose of 690 rads was established as th" LD 50/30 dost. by probit analysis. Phase II consisted of intraperitoneal injection of either AET, DMSO...& or various combinations of these two chemicals into mice 5 minutes prior to a whole body exposure of 1200 rads. Results of Phase II show that administration of 250 mg AET/kg resulted in 80X survival at 30 days. AET doses below 250 mg/kg did not result...

  18. Revista Brasileira de Ensino de Fisica, v. 27, n. 1, p. 101 -102, (2005) www.sbfisica.org.br

    E-Print Network [OSTI]

    de Aguiar, Marcus A. M.

    de F´isica `Gleb Wataghin', Universidade Estadual de Campinas, Campinas, SP, Brasil O trabalho de¸c~ao experimental da quantiza¸c~ao dos n´iveis de energia dos ´atomos. As propostas de Bohr e Sommerfeld indicavam

  19. Revista Brasileira de Ensino de Fisica, v. 27, n. 1, p. 103 -107, (2005) www.sbfisica.org.br

    E-Print Network [OSTI]

    de Aguiar, Marcus A. M.

    fun¸c~ao energia1 . Seja ainda J(t, q1 . . . ql, 1 . . . l) uma integral completa da equa~ao Carlos, SP, Brasil. Revis~ao t´ecnica de Marcus A.M. de Aguiar. Instituto de F´isica "Gleb Wataghin", Universidade Estadual de Campinas, Campinas, SP, Brasil. 1Pois tem-se neste caso dH dt = i H qi . qi + i H pi

  20. Observations of hydroxyl and peroxy radicals and the impact of BrO at Summit, Greenland in 2007 and 2008

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    investigations at Summit, Greenland: An overview, J.upon ice particles in the Greenland snowpack, Geophys. Res.the snowpack at Summit, Greenland, Atmos. Environ. , 36,

  1. 8534 J. Am. Chem. SOC.1991, 113, 8534-8535 The transfer of Br+ between the two ethylenes requires a

    E-Print Network [OSTI]

    Chait, Brian T.

    gratefully acknowledge the financial support of the Natural Sciencesand Engineering Research Council, and nuclear magnetic resonance have been applied to monitor these conformational changes in my SrrucfureA Practical Approach; Creighton, T. E.,Ed.; IRL Press: Oxford, England, 1990. (2) Rossi-Fanelli, A

  2. ~thtV\\~ I\\br1i\\~C\\MSof\\ ~oJl aoI':l.

    E-Print Network [OSTI]

    +hC\\V\\Y Abru.~ctMsoV\\ fo. (( aOIa M.~t\\\\C\\{03 Y ~d ~\\lrnctl l' :5 130cl:~a ~ k* ca,\\4PMI "'i(e~e'1

  3. Quim. Nova, Vol. 30, No. 2, 346-350, 2007 *e-mail: morgano@ital.sp.gov.br

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    PARCIAIS Marcelo A. Morgano* Centro de Qumica de Alimentos e Nutrio Aplicada, Instituto de Tecnologia de

  4. A new interpretation of total column BrO during Arctic spring R. J. Salawitch,1,2,3

    E-Print Network [OSTI]

    Pan, Laura

    . Bui,18 G. Chen,19 R. B. Pierce,20 J. H. Crawford,19 and D. J. Jacob21 Received 30 April 2010; revised the convective boundary layer (CBL) during the ARCTAS and ARCPAC field campaigns at times bear little relation

  5. Marker-Assisted Verification of Hybrids in Pearl Millet-Napiergrass (Pennisetum glaucum [L.] R. Br. x Pennisetum purpureum Schumach.)

    E-Print Network [OSTI]

    Dowling, Charlie

    2012-02-14T23:59:59.000Z

    ; Lewandowski et al., 2003; Khanna et al., 2010). There is a tremendous rate of return of energy production in perennial biomass systems with such low-input requirements. The incorporation of low-input management practices with biomass feedstocks... giganteus Keng., and Brachypodium P. Beauv. (USDA Press Release, 08/12/11). None of these crops, however, are capable of producing both a high biomass feedstock that have superior yield in the establishment year and can be direct seeded. Switchgrass can...

  6. Impact of membrane characteristics on the performance and cycling of the Br2-H2 redox flow cell

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

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

  7. anodic fenton treatment: Topics by E-print Network

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

    with atomic layer deposition (ALD) to fabricate Rubloff, Gary W. 32 Effects of carbon brush anode size and loading on microbial fuel cell performance in batch and continuous...

  8. Accelerator Test Facility

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

    Test Facility Vitaly Yakimenko October 6-7, 2010 ATF User meeting DOE HE, S. Vigdor, ALD - (Contact) T. Ludlam Chair, Physics Department V. Yakimenko Director ATF, Accelerator...

  9. Brookhaven National Laboratory | Accelerator Test Facility

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

    Advisory Committee's report, to the Chair of the Collider-Accelerator Department and the NPP ALD. The current membership of the Program Advisory Committee is listed below....

  10. Citation: K. Nakamura et al. (Particle Data Group), JPG 37, 075021 (2010) (URL: http://pdg.lbl.gov) 1(1400) IG (JPC ) = 1-(1 -+)

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    the following data for averages, fits, limits, etc. 1323.1 4.6 2 AOYAGI 93 BKEI - p - p 1406 20 3 ALDE

  11. Citation: J. Beringer et al. (Particle Data Group), PR D86, 010001 (2012) (URL: http://pdg.lbl.gov) 1(1400) IG (JPC ) = 1-(1 -+)

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    the following data for averages, fits, limits, etc. 1323.1 4.6 2 AOYAGI 93 BKEI - p - p 1406 20 3 ALDE

  12. Atomic layer deposition of GaN using GaCl3 and NH3 Oh Hyun Kim, Dojun Kim, and Tim Andersona

    E-Print Network [OSTI]

    Anderson, Timothy J.

    be grown at lower temperature than by CVD. As example, ALD growth of device quality GaAs, GaP, and InGaP

  13. Ruthenium / aerogel nanocomposits via Atomic Layer Deposition

    SciTech Connect (OSTI)

    Biener, J; Baumann, T F; Wang, Y; Nelson, E J; Kucheyev, S O; Hamza, A V; Kemell, M; Ritala, M; Leskela, M

    2006-08-28T23:59:59.000Z

    We present a general approach to prepare metal/aerogel nanocomposites via template directed atomic layer deposition (ALD). In particular, we used a Ru ALD process consisting of alternating exposures to bis(cyclopentadienyl)ruthenium (RuCp{sub 2}) and air at 350 C to deposit metallic Ru nanoparticles on the internal surfaces of carbon and silica aerogels. The process does not affect the morphology of the aerogel template and offers excellent control over metal loading by simply adjusting the number of ALD cycles. We also discuss the limitations of our ALD approach, and suggest ways to overcome these.

  14. A non-destructive method for measuring the mechanical properties of ultrathin films prepared by atomic layer deposition

    SciTech Connect (OSTI)

    Zhang, Qinglin [General Motors Global Research and Development Center, Warren, Michigan 48090 (United States); Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046 (United States); Xiao, Xingcheng, E-mail: xingcheng.xiao@gm.com; Verbrugge, Mark W. [General Motors Global Research and Development Center, Warren, Michigan 48090 (United States); Cheng, Yang-Tse [Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046 (United States)

    2014-08-11T23:59:59.000Z

    The mechanical properties of ultrathin films synthesized by atomic layer deposition (ALD) are critical for the liability of their coated devices. However, it has been a challenge to reliably measure critical properties of ALD films due to the influence from the substrate. In this work, we use the laser acoustic wave (LAW) technique, a non-destructive method, to measure the elastic properties of ultrathin Al{sub 2}O{sub 3} films by ALD. The measured properties are consistent with previous work using other approaches. The LAW method can be easily applied to measure the mechanical properties of various ALD thin films for multiple applications.

  15. WILLIAMS ET AL. VOL. 6 ' NO. 7 ' 61856196 ' 2012 www.acsnano.org

    E-Print Network [OSTI]

    Based on ALD-Modified SiO2 Aerogel Frameworks Vennesa O. Williams, Nak Cheon Jeong, Chaiya Prasittichai aerogels was fabricated on transparent conducting oxides for use in dye-sensitized solar cells (DSSCs). These templates were coated with ZnO via atomic layer deposition (ALD) to yield an electronically interconnected

  16. SLAC National Accelerator Laboratory Persis Drell, Director

    E-Print Network [OSTI]

    Quake, Stephen R.

    . Reichanadter, Acting ALD L. Dardzinski Interim Assistant Director LCLS Directorate J. Sthr, ALD U. Bergmann, Facilities LCLS-II John Galayda Mechanical Engineering and Technical Support Division K. Fant Accelerator Research Division E. Colby LCLS Accelerator Systems Division A. Brachmann Instrumentation & Controls

  17. Title of Document: SENSOR BASED ATOMIC LAYER DEPOSITION FOR RAPID PROCESS

    E-Print Network [OSTI]

    Anlage, Steven

    processes. A novel wafer scale ALD reactor, which features fast gas switching, good process sensing manufacturability, we have explored new reactor designs and applied in-situ process sensing to W and HfO2 ALD compatibility and significant similarity to the real manufacturing environment, is constructed. The reactor has

  18. Atomic-Layer-Deposition Oxide Nanoglue for Sodium Ion Batteries Xiaogang Han,,

    E-Print Network [OSTI]

    Li, Teng

    Atomic-Layer-Deposition Oxide Nanoglue for Sodium Ion Batteries Xiaogang Han,, Yang Liu,, Zheng Jia ABSTRACT: Atomic-layer-deposition (ALD) coatings have been increasingly used to improve battery performance/discharging. Battery tests in coin-cells further showed the ALD-Al2O3 coating remarkably boosts the cycling performance

  19. Activation of farnesoid X receptor attenuates hepatic injury in a murine model of alcoholic liver disease

    SciTech Connect (OSTI)

    Wu, Weibin [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China) [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China); Institutes of Biomedical Science, Fudan University, Shanghai 200032 (China); Zhu, Bo; Peng, Xiaomin [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China)] [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China); Zhou, Meiling, E-mail: meilingzhou2012@gmail.com [Department of Radiology, Zhongshan Hospital of Fudan University and Shanghai Institute of Medical Imaging, Shanghai 200032 (China)] [Department of Radiology, Zhongshan Hospital of Fudan University and Shanghai Institute of Medical Imaging, Shanghai 200032 (China); Jia, Dongwei, E-mail: jiadongwei@fudan.edu.cn [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China)] [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China); Gu, Jianxin [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China) [Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032 (China); Institutes of Biomedical Science, Fudan University, Shanghai 200032 (China)

    2014-01-03T23:59:59.000Z

    Highlights: FXR activity was impaired by chronic ethanol ingestion in a murine model of ALD. Activation of FXR attenuated alcohol-induced liver injury and steatosis. Activation of FXR attenuated cholestasis and oxidative stress in mouse liver. -- Abstract: Alcoholic liver disease (ALD) is a common cause of advanced liver disease, and considered as a major risk factor of morbidity and mortality worldwide. Hepatic cholestasis is a pathophysiological feature observed in all stages of ALD. The farnesoid X receptor (FXR) is a member of the nuclear hormone receptor superfamily, and plays an essential role in the regulation of bile acid, lipid and glucose homeostasis. However, the role of FXR in the pathogenesis and progression of ALD remains largely unknown. Mice were fed Lieber-DeCarli ethanol diet or an isocaloric control diet. We used a specific agonist of FXR WAY-362450 to study the effect of pharmacological activation of FXR in alcoholic liver disease. In this study, we demonstrated that FXR activity was impaired by chronic ethanol ingestion in a murine model of ALD. Activation of FXR by specific agonist WAY-362450 protected mice from the development of ALD. We also found that WAY-362450 treatment rescued FXR activity, suppressed ethanol-induced Cyp2e1 up-regulation and attenuated oxidative stress in liver. Our results highlight a key role of FXR in the modulation of ALD development, and propose specific FXR agonists for the treatment of ALD patients.

  20. DOI 10.1155/JNM/2006/64501 Atomic Layer Deposition for the Conformal Coating of Nanoporous Materials

    E-Print Network [OSTI]

    unknown authors

    Atomic layer deposition (ALD) is ideal for applying precise and conformal coatings over nanoporous materials. We have recently used ALD to coat two nanoporous solids: anodic aluminum oxide (AAO) and silica aerogels. AAO possesses hexagonally ordered pores with diameters d ? 40 nm and pore length L

  1. Remote plasma enhanced atomic layer deposition of ZnO for thin film electronic applications

    E-Print Network [OSTI]

    Zheludev, Nikolay

    Remote plasma enhanced atomic layer deposition of ZnO for thin film electronic applications S: Available online 28 May 2012 Keywords: Remote plasma Atomic layer deposition (ALD) ZnO Thin film transistor of various reactant plasma parameters of remote plasma enhanced ALD (PEALD) on the ZnO thin film properties

  2. UNIVERSITY of CALIFORNIA ATOMIC LAYER DEPOSITION OF ALUMINUM OXIDE

    E-Print Network [OSTI]

    Belanger, David P.

    UNIVERSITY of CALIFORNIA SANTA CRUZ ATOMIC LAYER DEPOSITION OF ALUMINUM OXIDE A thesis submitted deposition (ALD) of aluminum oxide on crystalline silicon and anodized aluminum substrates. A homemade ALD system is used with trimethylaluminum (TMA) and water as precursors to deposit uniform aluminum oxide

  3. Atmospheric pressure spatial atomic layer deposition web coating with in situ monitoring of film thickness

    SciTech Connect (OSTI)

    Yersak, Alexander S.; Lee, Yung C. [Department of Mechanical Engineering, University of Colorado at Boulder, 1045 Regent Drive, 422 UCB, Boulder, Colorado 80309-0422 (United States); Spencer, Joseph A.; Groner, Markus D., E-mail: mgroner@aldnanosolutions.com [ALD NanoSolutions, Inc., 580 Burbank Street, Unit 100, Broomfield, Colorado 80020 (United States)

    2014-01-15T23:59:59.000Z

    Spectral reflectometry was implemented as a method for in situ thickness monitoring in a spatial atomic layer deposition (ALD) system. Al{sub 2}O{sub 3} films were grown on a moving polymer web substrate at 100?C using an atmospheric pressure ALD web coating system, with film growth of 0.110.13?nm/cycle. The modular coating head design and the in situ monitoring allowed for the characterization and optimization of the trimethylaluminum and water precursor exposures, purge flows, and web speed. A thickness uniformity of 2% was achieved across the web. ALD cycle times as low as 76?ms were demonstrated with a web speed of 1?m/s and a vertical gap height of 0.5?mm. This atmospheric pressure ALD system with in situ process control demonstrates the feasibility of low-cost, high throughput roll-to-roll ALD.

  4. Irjg~lL f0~ BrH ~ GE DOCUMENT NO. 79SDS4207 En0nT ~raaOYE

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    .. . . . . 2-8 2-7 System Operation Schematic for Cooling Mode (95F Day) . . . . 2-9 2-8 System Operation . . . . . . . . . 1-1 1.1.3 Phase II Prior Accomplishments . .. . . 1-4 1.2 Progress Summary ......... . ... 1-8 2 PROTOTYPE 1 SYSTEM TEST .... . ... 2-1 2.1 Introduction . . . . . . . . . . . . . . . . . 2-1 2.2 Test

  5. Feasibility Study of a Portable Coupled 3He Detector with LaBr3 Gamma Scintillator for Field Identification and Quantification of Nuclear Material

    E-Print Network [OSTI]

    Strohmeyer, Daniel C.

    2010-07-14T23:59:59.000Z

    that are portable and work in a variety of environments. In this work, a Monte Carlo Neutral Practicle X (MCNPX) model was used to design an instrument that includes four gamma detection slabs placed within four neutron detection slabs. The combination of gamma...

  6. Photoproduct Channels from BrCD2CD2OH at 193 nm and the HDO + Vinyl Products from the CD2CD2OH Radical Intermediate

    E-Print Network [OSTI]

    Butler, Laurie J.

    for the undeuterated system. However, because the vibrational energy distribution of the deuterated radicals is lower, Illinois 60637, United States National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, Republic of China *S Supporting Information ABSTRACT: We present the results of our product branching

  7. 72 communicAtions of tHe Acm | FeBrUAry 2011 | voL. 54 | No. 2 contributedarticles

    E-Print Network [OSTI]

    Cafarella, Michael J.

    -centric applica- tions (such as schema completion and synonym finding). The second, the Google Deep Web Crawler, at- tempts to surface information from the Deep Web, referring to data on the Web available only Structured data on the Web exists in several forms, including HTML ta- bles, HTML lists, and back-end Deep

  8. Measurement of the half-lives of ??As and ??Br high Z test of CVC (Standard Model) via superallowed Fermi decay

    E-Print Network [OSTI]

    Burch, Robert Harry

    1988-01-01T23:59:59.000Z

    of charged and neutral intermediate vector bosons and it is constructed so that, for massless fundamental fermions (leptons and quarks), s, local SU(2) x U(1) gauge invarisnce takes place. Then the interaction (again locally gauge invariant) of Higgs...- magnetic interactions oi'leptons which was based on the gauge SU(2) x U(1) invariance. This theory is based on the assumption that, to- gether with the photon, there exist also charged W and neutral Z intermediate bosons. The masses of the W and Z bosons...

  9. J.P. Tomkins et al. 306 Genetics and Molecular Research 1 (4): 306-316 (2002) www.funpecrp.com.br

    E-Print Network [OSTI]

    Hunt, Greg

    Hall, Clemson, SC 29634, USA 2 Arizona Genomics Institute, 303 Forbes Hall, Tucson, AZ 85721, USA 3 en- zyme HindIII in order to develop resources for structural genomics re- search. The library transposable element databases. Results in spread- sheet format from these searches are publicly available

  10. The chemistry of transition metal complexes related to solar energy storage : H? production and small molecule (CO? and HX; X = Cl, Br) chemistry.

    E-Print Network [OSTI]

    Lee, Changhoon, Ph. D. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    The studies in this thesis have focused on the chemistry of transition metal complexes related to solar energy storage: electrochemical H? production, HX splitting and CO? activation mediated by transition metal complexes. ...

  11. Br-rich tips of calcified crab claws are less hard but more fracture resistant: A comparison of mineralized and heavy-element biological materials

    E-Print Network [OSTI]

    Scott, Robert A.

    of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China d Department of Chemistry the viscoelasticity of the material. We suggest that fracture resistance is of greater importance in smaller organisms cuticle. Bromine is one of a variety of heavy elements including zinc, iron, copper and manganese

  12. Estrada Dona Castorina, 110 Rio de Janeiro -Brasil 22460-320 Fone: 55 21 2529 5000/5284 Fax: 55 21 2512 4115 http://www.impa.br

    E-Print Network [OSTI]

    Solodov, Mikhail V.

    Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529 5000/5284 Fax: 55 21 Atividades Científicas #12;Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529 Atividades Científicas #12;Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529

  13. 13/03/13 AUN -Agncia Universitria de Notcias www.usp.br/aun/antigo/www/_reeng/materia.php?cod_materia=1106012 1/2

    E-Print Network [OSTI]

    Morandini, Andre C.

    a práticas de economia de água e energia, a realização de palestras e a organização de grupos de discussão e 18h43 Brasil busca busca avançada saúde meio ambiente humanidades educação e comportamento economia

  14. From 08/10-09/10, BR Environmental Services processed our Waste Electrical and Electronic Equipment (WEEE) arising from Information Systems operations. BRES recommend tonnage

    E-Print Network [OSTI]

    Evans, Paul

    (WEEE) arising from Information Systems operations. BRES recommend tonnage calculations based on average this operation and weigh all WEEE on collection. August 2013 Key Performance Indicator (KPI): Waste Management

  15. 180 Br~ves communications -Brevi comunicazioni [Exe~mE~CTIAVOL. XlI[5] 2, 7, 12 und 17 Tage alte PlasmGcytomzellkulturen

    E-Print Network [OSTI]

    Govindjee

    . The hydrolysate was prepar- ed by hydrolyzing the residue with 6 N HCI and auto- claving at 15 lb pressu

  16. 07/01/13 L12772 1/40www.planalto.gov.br/CCIVIL_03/_Ato2011-2014/2012/Lei/L12772.htm

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    aperfeiçoamento do ensino, pesquisa e extensão, ressalvados os cargos de que trata o § 11 do art. 108-A da Lei

  17. Applications of Reliable Scientific Computing I p Ao eHmI HaAexcrmIxHayam,rxBr:,macAeHmi

    E-Print Network [OSTI]

    Kearfott, R. Baker

    of reliable scien- tific computing are published not only in mathematical journals (that are usually covered.). The experience of the International Workshop on Applications of Interval Computations (El Paso, TX, February 23 by Mathematical Reviews, Zentralblatt fur Mathematik, etc.), but also in the journals of the corre- sponding

  18. Structural disorder and its effect on the superconducting transition temperature in the organic superconductor -,,BEDT-TTF...2CuN,,CN...2Br

    E-Print Network [OSTI]

    Zuo, Fulin

    is strongly dependent on the applied pressure with a typical dTc /dP 3 K/kbar.6 Recent 13 C NMR and transport of the effect of the cooling rate on the interlayer transport properties as well as its effect on Tc . By freezing the sample into different disordered states, we find that there is strong evidence

  19. Feasibility Study of a Portable Coupled 3He Detector with LaBr3 Gamma Scintillator for Field Identification and Quantification of Nuclear Material

    E-Print Network [OSTI]

    Strohmeyer, Daniel C.

    2010-07-14T23:59:59.000Z

    spectroscopy and neutron coincidence counting in a single instrument allows for direct measurement of plutonium (Pu) mass without need for assumptions or operator declarations. A combined neutron-gamma instrument was designed for use in characterizing...

  20. Measurement of the half-lives of ??As and ??Br high Z test of CVC (Standard Model) via superallowed Fermi decay

    E-Print Network [OSTI]

    Burch, Robert Harry

    1988-01-01T23:59:59.000Z

    of charged and neutral intermediate vector bosons and it is constructed so that, for massless fundamental fermions (leptons and quarks), s, local SU(2) x U(1) gauge invarisnce takes place. Then the interaction (again locally gauge invariant) of Higgs...- magnetic interactions oi'leptons which was based on the gauge SU(2) x U(1) invariance. This theory is based on the assumption that, to- gether with the photon, there exist also charged W and neutral Z intermediate bosons. The masses of the W and Z bosons...

  1. ITP Industrial Distributed Energy: A Guide to Developing Air-Cooled LiBr Absorption for Combined Heat and Power Applications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGENDDepartmentSeptember 20092009 |Final

  2. A study of the reaction between amine hydrobromides and copper(I) bromide

    E-Print Network [OSTI]

    Baird, Michael Jefferson

    1966-01-01T23:59:59.000Z

    . The following set of equations represent the equilibrium reactions for this particular study. (a) CuBr(solid) ~~ Cu + Br (b) Cu + Br ~ CuBr(aqueous) (c) CuBr(aqueous) + Br ~~ CuBr2 (d) CuBr2 + Br ~~ CuBr3 Since the number of water molecules that hydrate... with the metal ion is unknown, they are usually omitted when writing the reaction equation. The equilibrium constants for each stepwise reaction can be represented as follows& (a) Kgp [Cu ] [Br ] (B ) B ~CB . ~CB* 1 [Cu ][Br ] SP (c) K 2 (d) K 3 CB 1 ~CB...

  3. Characterization of CZTSSe photovoltaic device with an atomic layer-deposited passivation layer

    SciTech Connect (OSTI)

    Wu, Wei, E-mail: wei.wu@dupont.com; Cao, Yanyan; Caspar, Jonathan V.; Guo, Qijie; Johnson, Lynda K.; Mclean, Robert S.; Malajovich, Irina; Choudhury, Kaushik Roy [DuPont Central Research and Development, Wilmington, Delaware 19880 (United States)

    2014-07-28T23:59:59.000Z

    We describe a CZTSSe (Cu{sub 2}ZnSn(S{sub 1?x},Se{sub x}){sub 4}) photovoltaic (PV) device with an ALD (atomic layer deposition) coated buffer dielectric layer for CZTSSe surface passivation. An ALD buffer layer, such as TiO{sub 2}, can be applied in order to reduce the interface recombination and improve the device's open-circuit voltage. Detailed characterization data including current-voltage, admittance spectroscopy, and capacitance profiling are presented in order to compare the performance of PV devices with and without the ALD layer.

  4. In situ synchrotron based x-ray techniques as monitoring tools for atomic layer deposition

    SciTech Connect (OSTI)

    Devloo-Casier, Kilian, E-mail: Kilian.DevlooCasier@Ugent.be; Detavernier, Christophe; Dendooven, Jolien [Department of Solid State Sciences, Ghent University, Krijgslaan 281/S1, B-9000 Ghent (Belgium); Ludwig, Karl F. [Physics Department, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215 (United States)

    2014-01-15T23:59:59.000Z

    Atomic layer deposition (ALD) is a thin film deposition technique that has been studied with a variety of in situ techniques. By exploiting the high photon flux and energy tunability of synchrotron based x-rays, a variety of new in situ techniques become available. X-ray reflectivity, grazing incidence small angle x-ray scattering, x-ray diffraction, x-ray fluorescence, x-ray absorption spectroscopy, and x-ray photoelectron spectroscopy are reviewed as possible in situ techniques during ALD. All these techniques are especially sensitive to changes on the (sub-)nanometer scale, allowing a unique insight into different aspects of the ALD growth mechanisms.

  5. IPA, Worldbet, and OGIbet English Broad Phonetic LabelsCenter for Spoken Language Understanding Oregon Graduate Institute of Science & Technology IPA Worldbet OGIbet Example Category

    E-Print Network [OSTI]

    Hosom, John-Paul

    Worldbet OGIbet Non Speech Sound Item .bn .bn background noise .br .br breath noise .cough .cough cough .ct

  6. Generation of the 2Torsion Part of the Brauer Group of a Local Quintic by Quaternion Algebras

    E-Print Network [OSTI]

    (Kjk). Below we shall write Br X instead of Br nr (Kjk) keeping in mind this identification. The group

  7. Atomic Layer Deposition of Indium Tin Oxide Thin Films Using Nonhalogenated Jeffrey W. Elam,*, David A. Baker, Alex B. F. Martinson,, Michael J. Pellin, and

    E-Print Network [OSTI]

    precise coatings to be applied on all exposed surfaces of nanoporous substrates such as aerogels10 using ALD techniques to apply metal oxide coatings onto porous supports such as anodic aluminum oxide

  8. Global and Regional Solutions Directorate

    E-Print Network [OSTI]

    Homes, Christopher C.

    at Pacific NW National Lab (PNNL) Founding Director Joint Global Change Research Institute (PNNL/UMd) ALD (PNNL) Environmental and Health Sciences Directorate; Emerging Technologies Chief Scientist Atmospheric Radiation Measurement Program Director PNNL Global Studies Program Other (PNNL): Center

  9. Osteopontin-mediated neutrophilic infiltration and higher liver injury in a female rodent alcoholic steatohepatitis model

    E-Print Network [OSTI]

    Banerjee, Atrayee

    2009-05-15T23:59:59.000Z

    Females are known to be more susceptible to alcoholic liver disease (ALD), but the precise mechanism behind this increased susceptibility is not well understood. The objective of this study was to identify the molecular mechanism behind...

  10. Una experiencia mexicana en Hawaii: "Return Ticket" de Salvador Novo

    E-Print Network [OSTI]

    Fortes, Mayra

    2012-01-01T23:59:59.000Z

    que se destacan por su calidad potica, como el apstrofe alde origen sino que la calidad de esos productos es, incluso,para la ropa de buena calidad por su estatura, la imagen de

  11. Atomic Layer Deposition for SRF Cavities

    SciTech Connect (OSTI)

    Norem, J; Pellin, M J; Antoine, C Z; Ciovati, G; Kneisel, P; Reece, C E; Rimmer, R A; Cooley, L; Gurevich, A V; Ha, Y; Proslier, Th

    2009-05-01T23:59:59.000Z

    We have begun using Atomic Layer Deposition (ALD) to synthesize a variety of surface coatings on coupons and cavities as part of an effort to produce rf structures with significantly better performance and yield than those obtained from bulk niobium, The ALD process offers the possibility of conformally coating complex cavity shapes with precise layered structures with tightly constrained morphology and chemical properties. Our program looks both at the metallurgy and superconducting properties of these coatings, and also their performance in working structures. Initial results include: 1) evidence from point contact tunneling showing magnetic oxides can be a significant limitation to high gradient operation, 2) experimental results showing the production sharp niobium/oxide interfaces from a high temperature bake of ALD coated Al2O3 on niobium surfaces, 3) results from ALD coated structures.

  12. Analytic expressions for atomic layer deposition: Coverage, throughput, and materials utilization in cross-flow, particle coating, and spatial atomic layer deposition

    SciTech Connect (OSTI)

    Yanguas-Gil, Angel; Elam, Jeffrey W., E-mail: jelam@anl.gov [Argonne National Laboratory, Energy Systems Division, 9700 S Cass Ave, Lemont, Illinois 60439 (United States)

    2014-05-15T23:59:59.000Z

    In this work, the authors present analytic models for atomic layer deposition (ALD) in three common experimental configurations: cross-flow, particle coating, and spatial ALD. These models, based on the plug-flow and well-mixed approximations, allow us to determine the minimum dose times and materials utilization for all three configurations. A comparison between the three models shows that throughput and precursor utilization can each be expressed by universal equations, in which the particularity of the experimental system is contained in a single parameter related to the residence time of the precursor in the reactor. For the case of cross-flow reactors, the authors show how simple analytic expressions for the reactor saturation profiles agree well with experimental results. Consequently, the analytic model can be used to extract information about the ALD surface chemistry (e.g., the reaction probability) by comparing the analytic and experimental saturation profiles, providing a useful tool for characterizing new and existing ALD processes.

  13. Scalable control program for multiprecursor flow-type atomic layer deposition system

    SciTech Connect (OSTI)

    Selvaraj, Sathees Kannan [Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States); Takoudis, Christos G., E-mail: takoudis@uic.edu [Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607 and Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607 (United States)

    2015-01-01T23:59:59.000Z

    The authors report the development and implementation of a scalable control program to control flow type atomic layer deposition (ALD) reactor with multiple precursor delivery lines. The program logic is written and tested in LABVIEW environment to control ALD reactor with four precursor delivery lines to deposit up to four layers of different materials in cyclic manner. The programming logic is conceived such that to facilitate scale up for depositing more layers with multiple precursors and scale down for using single layer with any one precursor in the ALD reactor. The program takes precursor and oxidizer exposure and purging times as input and controls the sequential opening and closing of the valves to facilitate the complex ALD process in cyclic manner. The program could be used to deposit materials from any single line or in tandem with other lines in any combination and in any sequence.

  14. In-situ deposition of high-k dielectrics on III-V compound semiconductor in MOCVD system

    E-Print Network [OSTI]

    Cheng, Cheng-Wei, Ph.D. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    In situ deposition of high-k materials to passivate the GaAs in metal organic chemical vapor deposition (MOCVD) system was well demonstrated. Both atomic layer deposition (ALD) and chemical vapor deposition (CVD) methods ...

  15. Reactor concepts for atomic layer deposition on agitated particles: A review

    SciTech Connect (OSTI)

    Longrie, Delphine, E-mail: delphine.longrie@asm.com; Deduytsche, Davy; Detavernier, Christophe, E-mail: christophe.detavernier@ugent.be [Department of Solid State Sciences, Ghent University, Krijgslaan 281/S1, B-9000 Gent (Belgium)

    2014-01-15T23:59:59.000Z

    The number of possible applications for nanoparticles has strongly increased in the last decade. For many applications, nanoparticles with different surface and bulk properties are necessary. A popular surface modification technique is coating the particle surface with a nanometer thick layer. Atomic layer deposition (ALD) is known as a reliable method for depositing ultrathin and conformal coatings. In this article, agitation or fluidization of the particles is necessary for performing ALD on (nano)particles. The principles of gas fluidization of particles will be outlined, and a classification of the gas fluidization behavior of particles based on their size and density will be given. Following different reactor concepts that have been designed to conformally coat (nano)particles with ALD will be described, and a concise overview will be presented of the work that has been performed with each of them ending with a concept reactor for performing spatial ALD on fluidized particles.

  16. Real-time observation and optimization of tungsten atomic layer deposition process cycle

    E-Print Network [OSTI]

    Rubloff, Gary W.

    Barozzi and Massimo Bersani ITC-IRST, 38050 Povo, Trento, Italy Received 16 September 2005; accepted 13,2 ALD holds similar promise in other technology frontier areas such as microelectromechanical systems

  17. Jacobsen of XSD Elected to American Physical Society Fellowship

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

    Appointed ALD for Photon Sciences APS, Other DOE Labs Help Develop New Cancer Fighting Drug APS News Archives: 2014 | 2013 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004...

  18. Chapman of XSD Wins Oxford Cryosystems Poster Prize

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

    Appointed ALD for Photon Sciences APS, Other DOE Labs Help Develop New Cancer Fighting Drug Paper on Fast Pharmaceuticals by APS Authors Featured in New Journal APS News Archives:...

  19. Directed inorganic modification of bi-component polymer fibers by selective vapor reaction and atomic layer deposition

    E-Print Network [OSTI]

    Khan, Saad A.

    . The ALD process promotes selective precursor infusion into the inner core of a core/shell polymer fiber and transmission electron microscopy show that infusion yields selective dispersion of aluminum oxide in different

  20. Enhanced Performance in Fluorene-Free Organometal Halide Perovskite Light Emitting Diodes using Tunable, Low Electron-Affinity Oxide Electron-Injectors

    E-Print Network [OSTI]

    Hoye, Robert L. Z.; Chua, Matthew R.; Musselman, Kevin P.; Li, Guangru; Lai, May-Ling; Tan, Zhi-Kuang; Greenham, Neil C.; MacManus-Driscoll, Judith L.; Friend, Richard H.; Credgington, Dan

    2015-01-09T23:59:59.000Z

    perovskites using an ALD-based technique is typically challenging because conventional ALD requires pumping down to vacuum, which increases the deposition time and reduces scalability.[21] In particular, this would require heating the perovskite (typically... deposited in open-air at low temperatures (150 C or below).[22,25] We were therefore able to directly load and unload the samples from the substrate holder, resulting in the samples only being heated for the time required to deposit the films (3 min...

  1. Controlling Atomic Layer Deposition of TiO2 in Aerogels through Surface Functionalization

    SciTech Connect (OSTI)

    Ghosal, S; Baumann, T F; King, J S; Kucheyev, S; Wang, Y; Worsley, M A; Biener, J; Bent, S F; Hamza, A V

    2009-03-09T23:59:59.000Z

    This report demonstrates a chemical functionalization method for controlling atomic layer deposition (ALD) of TiO{sub 2} in low-density nanoporous materials. Functionalization of silica aerogel with trimethylsilane is shown to strongly suppress TiO{sub 2} growth via ALD. Subsequent modification of the functionalization through selective removal of the hydrocarbon groups reactivates the aerogel towards TiO{sub 2} deposition. These results demonstrate the potential use of ALD as a selective tool for creating novel nanoporous materials. Nanoporous materials present significant technological advantage for a wide range of applications, including catalysis, energy storage and conversion, nanoelectronics to name just a few (1-4). Hence, there is considerable interest in developing synthetic pathways for the fabrication of nanoporous materials with tailored properties. Aerogels (AGs) are unique low-density, open-cell porous materials consisting of submicrometer pores and ligaments that can be used as a robust material platform for designing novel nanoporous materials. In recent years, a synthetic approach based on ALD on AG templates has emerged as a promising method for the directed growth of nanoporous materials (5-11, 18). This approach has been used successfully to prepare millimeter-sized high aspect ratio aerogels coated uniformly with zinc oxide (ZnO), tungsten (W) and alumina (Al{sub 2}O{sub 3}) (10, 11). The ALD process utilizes two sequential, self-limiting surface reactions resulting in a layer-by-layer growth mode. The self limiting nature of the surface reactions makes ALD a particularly suitable technique for uniform deposition onto high aspect ratio porous substrates. Additionally, chemical specificity of the surface reactions in ALD enables one to control the deposition process through selective functionalization of the substrate surface. In fact the functionalization of planar substrates such as silicon wafers with organosilane groups (R{sub n}SiX{sub 4-n} (n = 1-3)) has been shown to deactivate the substrate towards ZrO{sub 2}, HfO{sub 2}, ZnO, and TiO{sub 2} ALD processes (12-16). A possible mechanism for the deactivation effect is the blocking of surface functional groups, such as hydroxyl (OH) moieties, which serve as chemisorption sites for the ALD precursors and hence are essential for nucleating the deposition process. Henceforth, we shall refer to these surface functional groups as nucleation sites for the ALD process.

  2. UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM NANOCINCIA E NANOBIOTECNOLOGIA

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    Lunardi Gomes M/D clunardi@unb.br Denilson Rabelo M/D denilson@quimica.ufg.br Emlia Celma de Oliveira Pereira Garcia M mgarcia@unb.br Patricia P. Confessori Sartoratto M/D patricia@quimica.ufg.br Paulo Csar@if.ufg.br Claure Nain Lunardi Gomes M/D clunardi@unb.br Denilson Rabelo M/D denilson@quimica.ufg.br Emlia Celma de

  3. Low temperature hydrogen plasma-assisted atomic layer deposition of copper studied using in situ infrared reflection absorption spectroscopy

    SciTech Connect (OSTI)

    Chaukulkar, Rohan P.; Rai, Vikrant R.; Agarwal, Sumit, E-mail: sagarwal@mines.edu [Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401 (United States); Thissen, Nick F. W. [Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven (Netherlands)

    2014-01-15T23:59:59.000Z

    Atomic layer deposition (ALD) is an ideal technique to deposit ultrathin, conformal, and continuous metal thin films. However, compared to the ALD of binary materials such as metal oxides and metal nitrides, the surface reaction mechanisms during metal ALD are not well understood. In this study, the authors have designed and implemented an in situ reflection-absorption infrared spectroscopy (IRAS) setup to study the surface reactions during the ALD of Cu on Al{sub 2}O{sub 3} using Cu hexafluoroacetylacetonate [Cu(hfac){sub 2}] and a remote H{sub 2} plasma. Our infrared data show that complete ligand-exchange reactions occur at a substrate temperature of 80?C in the absence of surface hydroxyl groups. Based on infrared data and previous studies, the authors propose that Cu(hfac){sub 2} dissociatively chemisorbs on the Al{sub 2}O{sub 3} surface, where the Al-O-Al bridge acts as the surface reactive site, leading to surface O-Cu-hfac and O-Al-hfac species. Surface saturation during the Cu(hfac){sub 2} half-cycle occurs through blocking of the available chemisorption sites. In the next half-reaction cycle, H radicals from an H{sub 2} plasma completely remove these surface hfac ligands. Through this study, the authors have demonstrated the capability of in situ IRAS as a tool to study surface reactions during ALD of metals. While transmission and internal reflection infrared spectroscopy are limited to the first few ALD cycles, IRAS can be used to probe all stages of metal ALD starting from initial nucleation to the formation of a continuous film.

  4. Brauer groups of local elliptic and hyperelliptic curves

    E-Print Network [OSTI]

    Bielefeld, University of

    group 2 Br E. The semi­split case of multiplicative reduction 44 #12; 1 Introduction Let Kjk nr (Kjk) be the unramified Brauer group of K (with respect to k). Let X be a smooth projective]) and this inclusion identifies Br X with uramified Brauer group Br nr (Kjk). (Below we shall write Br X instead of Br

  5. Tunneling spectroscopy of superconducting MoN and NbTiN grown by atomic layer deposition

    SciTech Connect (OSTI)

    Groll, Nickolas R., E-mail: ngroll@anl.gov; Klug, Jeffrey A.; Claus, Helmut; Pellin, Michael J.; Proslier, Thomas, E-mail: proslier@anl.gov [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Cao, Chaoyue; Becker, Nicholas G.; Zasadzinski, John F. [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616 (United States); Altin, Serdar [Fen Edebiyat Fakultesi, Fizik Bolumu, Inonu Universitesi, 44280 Malatya (Turkey)

    2014-03-03T23:59:59.000Z

    A tunneling spectroscopy study is presented of superconducting MoN and Nb{sub 0.8}Ti{sub 0.2}N thin films grown by atomic layer deposition (ALD). The films exhibited a superconducting gap of 2?meV and 2.4?meV, respectively, with a corresponding critical temperature of 11.5?K and 13.4?K, among the highest reported T{sub c} values achieved by the ALD technique. Tunnel junctions were obtained using a mechanical contact method with a Au tip. While the native oxides of these films provided poor tunnel barriers, high quality tunnel junctions with low zero bias conductance (below ?10%) were obtained using an artificial tunnel barrier of Al{sub 2}O{sub 3} on the film's surface grown ex situ by ALD. We find a large critical current density on the order of 4??10{sup 6}?A/cm{sup 2} at T?=?0.8T{sub c} for a 60?nm MoN film and demonstrate conformal coating capabilities of ALD onto high aspect ratio geometries. These results suggest that the ALD technique offers significant promise for thin film superconducting device applications.

  6. Modeling precursor diffusion and reaction of atomic layer deposition in porous structures

    SciTech Connect (OSTI)

    Keuter, Thomas, E-mail: t.keuter@fz-juelich.de; Menzler, Norbert Heribert; Mauer, Georg; Vondahlen, Frank; Vaen, Robert; Buchkremer, Hans Peter [Forschungszentrum Jlich, Institute of Energy and Climate Research (IEK-1), 52425 Jlich (Germany)

    2015-01-01T23:59:59.000Z

    Atomic layer deposition (ALD) is a technique for depositing thin films of materials with a precise thickness control and uniformity using the self-limitation of the underlying reactions. Usually, it is difficult to predict the result of the ALD process for given external parameters, e.g., the precursor exposure time or the size of the precursor molecules. Therefore, a deeper insight into ALD by modeling the process is needed to improve process control and to achieve more economical coatings. In this paper, a detailed, microscopic approach based on the model developed by Yanguas-Gil and Elam is presented and additionally compared with the experiment. Precursor diffusion and second-order reaction kinetics are combined to identify the influence of the porous substrate's microstructural parameters and the influence of precursor properties on the coating. The thickness of the deposited film is calculated for different depths inside the porous structure in relation to the precursor exposure time, the precursor vapor pressure, and other parameters. Good agreement with experimental results was obtained for ALD zirconiumdioxide (ZrO{sub 2}) films using the precursors tetrakis(ethylmethylamido)zirconium and O{sub 2}. The derivation can be adjusted to describe other features of ALD processes, e.g., precursor and reactive site losses, different growth modes, pore size reduction, and surface diffusion.

  7. N 27, quinta-feira, 7 de fevereiro de 2013 61ISSN 1677-7069 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Liu, I-Shih

    -X, Metrologia de Tempo e Frequência, Metrologia Quântica (Efeitos Hall e Josephson), Dinâmica dos Fluidos e

  8. N 27, quinta-feira, 7 de fevereiro de 201366 ISSN 1677-7069 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Liu, I-Shih

    Pblicas Brasileira - ICP-Brasil. 3 b) restando vagas, aos estudantes do grupo indicado no in- ciso II do, aos estudantes do grupo indicado no in- ciso I do artigo 8, prioritariamente aos estudantes de que alnea "a", do inciso II do artigo 8; e b) restando vagas, aos estudantes do grupo indicado no in- ciso

  9. Tkalcic, H., D.S. Dreger, G.R. Foulger, B.R. Julian, A. Fichtner, A seismological portrait of the anomalous 1996 Bardarbunga volcano, Iceland, earthquake (invited poster), EOS Trans. AGU, Fall Meet. Suppl.,

    E-Print Network [OSTI]

    Foulger, G. R.

    in the Global Centroid Moment Tensor catalog. An earthquake with Mw 5.6 and a strong non-double-couple radiation was recorded well by the regional-scale Iceland Hotspot Project seismic experiment. Several hypotheses were proposed to explain the seismically observed displacement field and the sequence of observed events

  10. Julian, B.R. and G.R. Foulger, Improved Methods for Mapping Permeability and Heat sources in Geothermal Areas using Microearthquake Data, Thirty-Fifth Workshop on Geothermal Reservoir Engineering, Stanford University,

    E-Print Network [OSTI]

    Foulger, G. R.

    Systems (EGS) experiments and other geothermal operations. With support from the Dept. of Energy, we in Geothermal Areas using Microearthquake Data, Thirty-Fifth Workshop on Geothermal Reservoir Engineering and Heat sources in Geothermal Areas using Microearthquake Data Bruce R. Julian§ U. S. Geological Survey

  11. Measurement of ${?(H?_e\\bar{?_e})\\times BR(H\\rightarrow ZZ^\\ast)}$ and Higgs production in $ZZ$ fusion at a 1.4 TeV CLIC collider

    E-Print Network [OSTI]

    G. Milutinovi?-Dumbelovi?; I. Boovi?-Jelisav?i?; A. Robson; P. Roloff

    2015-05-12T23:59:59.000Z

    This paper presents the potential measurement at 1.4 TeV CLIC of the cross-section (times branching ratio) of the Higgs production via $WW$ fusion with the Higgs subsequently decaying in $ZZ^\\ast$, ${\\sigma(H\

  12. Volume 47(2):15-26, 2007 1 MuseudeZoologia,UniversidadedeSoPaulo,CaixaPostal42.494,CEP04218970,SoPaulo,SP,Brasil.Emails:a:rfeitosa@usp.br;

    E-Print Network [OSTI]

    Villemant, Claire

    Volume 47(2):15-26, 2007 1 MuseudeZoologia,UniversidadedeSãoPaulo,CaixaPostal42.494,CEP04218970,SãoPaulo,SP,Brasil

  13. 2/13/2014 Moinhos de vento anexados ao celular recarregam bateria -EXAME.com http://exame.abril.com.br/tecnologia/noticias/cientistas-criam-moinhos-de-vento-que-recarregam-bateria 1/4

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Mercados Economia Brasil Mundo Tecnologia Marketing Carreira Seu Dinheiro PME Estilo Notícias | iPhone | i diversos moinhos de vento minúsculos, que podem ser "anexados" a uma capa de smartphone para gerar energia, que podem ser "anexados" a uma capa de smartphone para gerar energia eólica, da mesma forma que fazem

  14. N 6, quinta-feira, 9 de janeiro de 2014 3ISSN 1677-7050 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Públicas Brasileira - ICP-Brasil. 2 RETIFICA??O Na Portaria MCTI nº 13, de 7 de janeiro de 2014, publicada no Diário Oficial da União. FERNANDO LÁZARO FREIRE JR. COMISS?O NACIONAL DE ENERGIA NUCLEAR DIRETORIA DE Nacional de Energia Nuclear (CNEN), no uso da atribuição que lhe foi conferida pela Portaria CNEN/PR nº 33

  15. 2/13/2014 Moinhos de vento anexados ao celular recarregam bateria -Pgina 2 -EXAME.com http://exame.abril.com.br/tecnologia/noticias/cientistas-criam-moinhos-de-vento-que-recarregam-bateria?page=2 1/3

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Negócios Mercados Economia Brasil Mundo Tecnologia Marketing Carreira Seu Dinheiro PME Estilo Notícias | i de uma casa para gerar energia elétrica. A WinMEMS chegou a firmar uma parceria com a universidade sobre a China Samsung lança seu primeiro Chromebook no Brasil por R$ 1.099 Tópicos Dress code 25

  16. N 55, tera-feira, 22 de maro de 2011 15ISSN 1677-7042 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    constar os resultados obtidos, conforme estabelece a legisla- ção em vigor. COORDENA??O DE APERFEI?OAMENTO

  17. Ensino -RS segundo em ranking da Capes http://www.clicrbs.com.br/zerohora/jsp/default2.jsp?uf=1&local=1&s... 1 of 4 19-10-2007 12:40

    E-Print Network [OSTI]

    Barbosa, Marcia C. B.

    Aperfeiçoamento de Pessoal de Nível Superior (Capes), levou em consideração o desempenho de qualidade no período

  18. N 107, quinta-feira, 6 de junho de 2013 13ISSN 1677-7050 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    APERFEI?OAMENTO DE PESSOAL DE NÍVEL SUPERIOR PORTARIAS DE 4 DE JUNHO DE 2013 O PRESIDENTE DA COORDENA??O DE

  19. N 4, quinta-feira, 5 de janeiro de 2012 27ISSN 1677-7042 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    abril de 2007, seção 2, página 6. JOS? HENRIQUE PAIM FERNANDES COORDENA??O DE APERFEI?OAMENTO DE PESSOAL docentes. O Presidente da Coordenação de Aperfeiçoamento de Pes- soal de Nível Superior - Capes, no uso das

  20. N 144, quinta-feira, 28 de julho de 2011 9ISSN 1677-7042 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    UNIVERSIDADE FERAL DE VI?OSA COL?GIO UNIVERSITARIO 6 CAMPUS DE FLORESTAL 9 COORDENA??O DE APERFEI?OAMENTO DE Aperfeiçoamento de Pessoal de Nível Superior-Capes, no uso das atribuições que lhe são conferidas pelo Decreto nº

  1. Measurement of sigma p anti-p --> Z . Br (Z --> 2tau) in p anti-p collisions at s**(1/2) = 1.96 TeV

    SciTech Connect (OSTI)

    Abulencia, A.

    2007-02-01T23:59:59.000Z

    We present a measurement of the inclusive production cross-section for Z bosons decaying to tau leptons in p{bar p} collisions at {radical}s = 1.96 TeV. We use a channel with one hadronically-decaying and one electronically-decaying tau. This measurement is based on 350 pb{sup -1} of CDF Run II data. Using a sample of 504 opposite sign e{tau} events with a total expected background of 190 events, we obtain {sigma}(p{bar p} {yields} Z) {center_dot} {Beta}(Z {yields} {tau}{tau}) = 263 {+-} 23(stat) {+-} 14(syst) {+-} 15(lumi) pb, in agreement with the next-to-next-to-leading order QCD prediction. This is the first CDF cross section measurement using hadronically-decaying taus in Run II.

  2. THE PROTON-AIR INELASTIC CROSS SECTION AT E -0.3 EeV G.L. Cassiday, R. Cooper, S.C. Corbato, B.R. Dawson,

    E-Print Network [OSTI]

    HE 1.3-1 THE PROTON-AIR INELASTIC CROSS SECTION AT E - 0.3 EeV G.L. Cassiday, R. Cooper, S their observation of the showers produced by protons interacting with air molecules, are able to shed light on the proton-air inelastic cross section ( ó( p-air )), a quantity that can be related, through calculations

  3. N 48, tera-feira, 12 de maro de 2013 69ISSN 1677-7069 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-Print Network [OSTI]

    Liu, I-Shih

    anexo do laboratório de energia solar, denominado prédio 42715. Fundamento Legal: 8666/93 . Vigência: 11

  4. JOURNAL DE PHYSIQUE Colloque C6, supplment au n 8, Tome 39, aot 1978, page C6-819 NEUTRON SCATTERING STUDY ON THE SPIN-FLOP SYSTEM Cs.MnBr3.2D20

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Netherlands Energy Research Foundation (ECN), Westerduinweg Z, 17SS LE Petten (NH) The Netherlands Department on a diffrac- tometer at the HFR-reactor at Petten. The disk-like crystal of 15x15x4 mm3 was fixed

  5. Transition metal chemistry of main group hydrazides. 16. (Phosphanyl)hydrazines R{sub 2}PN(Me)N(Me)PR{sub 2} as a novel class of chelating bis(phosphines). Synthesis, coordination chemistry, and X-ray structures of cis-[PdCl{sub 2}[(p-BrC{sub 6}H{sub 4}O){sub 2}PN-(Me)N(Me)P(OC{sub 6}H{sub 4}Br-p){sub 2}

    SciTech Connect (OSTI)

    Reedy, V.S.; Katti, K.V. [Center for Radiological Research and MU Research Reactor, Columbia, MO (United States); Barnes, C.L. [Univ. of Missouri, Columbia, MO (United States)

    1995-10-25T23:59:59.000Z

    The alkoxy- and aryloxy-functionalized bis(phosphanyl)hydrazines of the type (OR){sub 2}PN(Me)N(Me)P(OR){sub 2} were obtained from the reactions of the corresponding alcohols and phenols with Cl{sub 2}PN(Me)N(Me)PCl{sub 2} in the presence of Et{sub 3}N. Interaction of these ligands with group 6 metal carbonyl precursors M(CO){sub 4}(NHC{sub 5}H{sub 10}){sub 2}(M=Mo, W) gave the tetracarbonyl complexes of the type cis-[M(CO){sub 4}(OR){sub 2}PN(Me)N(Me)P(OR){sub 2}]. The reactions of the alkoxy and aryloxy-functionalized bis(phosphanyl)hydrazines with Pd(PhCN){sub 2}(Cl){sub 2} or with Pt(COD)Cl{sub 2} resulted in the formation of the complexes of the type cis[MCl{sub 2}(OR){sub 2}PN(Me)N(Me)P(OR){sub 2}]. The ligands are bound cis to the metal center(s) in all the complexes. The structures of all the complexes have been established by combination of spectroscopic and elemental analysis. As representative examples, the authors have determined the structures of cis-[W(CO){sub 4}[(OPh){sub 2}PN(Me)N(Me)P(OPh){sub 2}

  6. Storage Viability and Optimization Web Service

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01T23:59:59.000Z

    Bromide (ZnBr) flow battery and PV. Current technology coststechnologies, as well as for ZnBr flow battery and PV.ZnBr flow battery and PV are always part of the available

  7. Property transformation of graphene with Al{sub 2}O{sub 3} films deposited directly by atomic layer deposition

    SciTech Connect (OSTI)

    Zheng, Li; Cao, Duo; Wang, Zhongjian; Xia, Chao [State Key Laboratory of Functional Materials for Informatics, SIMIT, Chinese Academy of Sciences, Shanghai 200050 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Cheng, Xinhong, E-mail: xh-cheng@mail.sim.ac.cn; Yu, Yuehui [State Key Laboratory of Functional Materials for Informatics, SIMIT, Chinese Academy of Sciences, Shanghai 200050 (China); Shen, Dashen [University of Alabama in Huntsville, Huntsville, Alabama 35899 (United States)

    2014-01-13T23:59:59.000Z

    Al{sub 2}O{sub 3} films are deposited directly onto graphene by H{sub 2}O-based atomic layer deposition (ALD), and the films are pinhole-free and continuously cover the graphene surface. The growth process of Al{sub 2}O{sub 3} films does not introduce any detective defects in graphene, suppresses the hysteresis effect and tunes the graphene doping to n-type. The self-cleaning of ALD growth process, together with the physically absorbed H{sub 2}O and oxygen-deficient ALD environment consumes OH{sup ?} bonds, suppresses the p-doping of graphene, shifts Dirac point to negative gate bias and enhances the electron mobility.

  8. High performance organic field-effect transistors with ultra-thin HfO{sub 2} gate insulator deposited directly onto the organic semiconductor

    SciTech Connect (OSTI)

    Ono, S., E-mail: shimpei@criepi.denken.or.jp [Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511 (Japan); Husermann, R. [Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511 (Japan) [Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511 (Japan); Laboratory for Solid State Physics, ETH Zurich, Zurich 8093 (Switzerland); Chiba, D. [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan) [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 322-0012 (Japan); Department of Applied Physics, University of Tokyo, Tokyo 113-8656 (Japan); Shimamura, K.; Ono, T. [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)] [Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); Batlogg, B. [Laboratory for Solid State Physics, ETH Zurich, Zurich 8093 (Switzerland)] [Laboratory for Solid State Physics, ETH Zurich, Zurich 8093 (Switzerland)

    2014-01-06T23:59:59.000Z

    We have produced stable organic field-effect transistors (OFETs) with an ultra-thin HfO{sub 2} gate insulator deposited directly on top of rubrene single crystals by atomic layer deposition (ALD). We find that ALD is a gentle deposition process to grow thin films without damaging rubrene single crystals, as results these devices have a negligibly small threshold voltage and are very stable against gate-bias-stress, and the mobility exceeds 1 cm{sup 2}/V s. Moreover, the devices show very little degradation even when kept in air for more than 2 months. These results demonstrate thin HfO{sub 2} layers deposited by ALD to be well suited as high capacitance gate dielectrics in OFETs operating at small gate voltage. In addition, the dielectric layer acts as an effective passivation layer to protect the organic semiconductor.

  9. Low interface defect density of atomic layer deposition BeO with self-cleaning reaction for InGaAs metal oxide semiconductor field effect transistors

    SciTech Connect (OSTI)

    Shin, H. S. [Department of Electronics Engineering, Chungnam National University, Daejeon (Korea, Republic of) [Department of Electronics Engineering, Chungnam National University, Daejeon (Korea, Republic of); SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States); The University of Texas, Austin, Texas 78758 (United States); Yum, J. H. [SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States) [SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States); The University of Texas, Austin, Texas 78758 (United States); Johnson, D. W. [SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States) [SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States); Texas A and M University College Station, Texas 77843 (United States); Harris, H. R. [Texas A and M University College Station, Texas 77843 (United States)] [Texas A and M University College Station, Texas 77843 (United States); Hudnall, Todd W. [Texas State University, 601 University Drive, San Marcos, Texas 78666 (United States)] [Texas State University, 601 University Drive, San Marcos, Texas 78666 (United States); Oh, J. [Yonsei University, Incheon, 406-840 (Korea, Republic of)] [Yonsei University, Incheon, 406-840 (Korea, Republic of); Kirsch, P.; Wang, W.-E. [SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States)] [SEMATECH, 2706 Montopolis Dr., Austin, Texas 78741 (United States); Bielawski, C. W.; Banerjee, S. K.; Lee, J. C. [The University of Texas, Austin, Texas 78758 (United States)] [The University of Texas, Austin, Texas 78758 (United States); Lee, H. D. [Department of Electronics Engineering, Chungnam National University, Daejeon (Korea, Republic of)] [Department of Electronics Engineering, Chungnam National University, Daejeon (Korea, Republic of)

    2013-11-25T23:59:59.000Z

    In this paper, we discuss atomic configuration of atomic layer deposition (ALD) beryllium oxide (BeO) using the quantum chemistry to understand the theoretical origin. BeO has shorter bond length, higher reaction enthalpy, and larger bandgap energy compared with those of ALD aluminum oxide. It is shown that the excellent material properties of ALD BeO can reduce interface defect density due to the self-cleaning reaction and this contributes to the improvement of device performance of InGaAs MOSFETs. The low interface defect density and low leakage current of InGaAs MOSFET were demonstrated using X-ray photoelectron spectroscopy and the corresponding electrical results.

  10. Atomic Layer Deposition for SRF Cavities

    SciTech Connect (OSTI)

    Proslier, Th.; Ha, Y.; Zasadzinski, J.; /IIT, Chicago; Ciovati, G.; Kneissel, P.; Reece, C.; Rimmer, R.; /Jefferson Lab; Gurevich, A.; /Natl. High Mag. Field Lab.; Cooley, L.; Wu, G.; /Fermilab; Pellin, M.; /Argonne

    2009-05-01T23:59:59.000Z

    We have begun using Atomic Layer Deposition (ALD) to synthesize a variety of surface coatings on coupons and cavities as part of an effort to produce rf structures with significantly better performance and yield than those obtained from bulk niobium, The ALD process offers the possibility of conformally coating complex cavity shapes with precise layered structures with tightly constrained morphology and chemical properties. Our program looks both at the metallurgy and superconducting properties of these coatings, and also their performance in working structures. Initial results include: (1) results from ALD coated cavities and coupons, (2) new evidence from point contact tunneling (PCT) showing magnetic oxides can be a significant limitation to high gradient operation, (3) a study of high pressure rinsing damage on niobium samples.

  11. Enhanced photoresponse of conformal TiO{sub 2}/Ag nanorod array-based Schottky photodiodes fabricated via successive glancing angle and atomic layer deposition

    SciTech Connect (OSTI)

    Haider, Ali; Biyikli, Necmi, E-mail: biyikli@unam.bilkent.edu.tr [National Nanotechnology Research Center (UNAM), Bilkent University, Bilkent, Ankara 06800, Turkey and Institute of Materials Science and Nanotechnology, Bilkent University, Bilkent, Ankara 06800 (Turkey); Cansizoglu, Hilal; Cansizoglu, Mehmet Fatih; Karabacak, Tansel [Department of Physics and Astronomy, University of Arkansas at Little Rock, Little Rock, Arkansas 72204 (United States); Okyay, Ali Kemal [National Nanotechnology Research Center (UNAM), Bilkent University, Bilkent, Ankara 06800 (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, Bilkent, Ankara 06800 (Turkey); Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, Ankara 06800 (Turkey)

    2015-01-01T23:59:59.000Z

    In this study, the authors demonstrate a proof of concept nanostructured photodiode fabrication method via successive glancing angle deposition (GLAD) and atomic layer deposition (ALD). The fabricated metal-semiconductor nanorod (NR) arrays offer enhanced photoresponse compared to conventional planar thin-film counterparts. Silver (Ag) metallic NR arrays were deposited on Ag-film/Si templates by utilizing GLAD. Subsequently, titanium dioxide (TiO{sub 2}) was deposited conformally on Ag NRs via ALD. Scanning electron microscopy studies confirmed the successful formation of vertically aligned Ag NRs deposited via GLAD and conformal deposition of TiO{sub 2} on Ag NRs via ALD. Following the growth of TiO{sub 2} on Ag NRs, aluminum metallic top contacts were formed to complete the fabrication of NR-based Schottky photodiodes. Nanostructured devices exhibited a photo response enhancement factor of 1.49??10{sup 2} under a reverse bias of 3 V.

  12. Solution based prompt inorganic condensation and atomic layer deposition of Al{sub 2}O{sub 3} films: A side-by-side comparison

    SciTech Connect (OSTI)

    Smith, Sean W.; Conley, John F., E-mail: jconley@eecs.oregonstate.edu [School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331-5501 (United States); Wang, Wei; Keszler, Douglas A. [Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003 (United States)

    2014-07-15T23:59:59.000Z

    A comparison was made of Al{sub 2}O{sub 3} films deposited on Si via prompt inorganic condensation (PIC) and atomic layer deposition (ALD). Currentvoltage measurements as a function of annealing temperature indicate that the solution-processed PIC films, annealed at 500?C, exhibit lower leakage and roughly equivalent breakdown strength in comparison to ALD films. PIC films are less dense than as-deposited ALD films and capacitancevoltage measurements indicate a lower relative dielectric constant. On the basis of x-ray photoelectron spectroscopy, transmission electron microscopy, and energy dispersive x-ray spectroscopy, it is found that the 500?C anneal results in the formation of a ?6?nm thick interfacial SiO{sub 2} layer at the Si interface. This SiO{sub 2} interfacial layer significantly affects the electrical performance of PIC Al{sub 2}O{sub 3} films deposited on Si.

  13. Growth mode evolution of hafnium oxide by atomic layer deposition

    SciTech Connect (OSTI)

    Nie, Xianglong; Ma, Fei; Ma, Dayan, E-mail: madayan@mail.xjtu.edu.cn [State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, Shaanxi (China); Xu, Kewei [State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China and Department of Physics and Opt-electronic Engineering, Xi'an University of Arts and Science, Xi'an 710065, Shaanxi (China)

    2014-01-15T23:59:59.000Z

    HfO{sub 2} thin films were deposited using tetrakis-ethylmethylamido hafnium and H{sub 2}O as precursors on silicon by atomic layer deposition (ALD). The morphology and microstructures at different ALD cycles were characterized by atomic force microscopy and high-resolution transmission electron microscopy. Based on the heightheight correlation function and power spectral density function, quantitative analysis of surface morphologies was performed. Three characteristic dimensions (?{sub 1}, ?{sub 2}, and ?{sub 3}) corresponding to three surface structures, islands, local and global fluctuations, were identified. The evolution of ALD growth mode at range of the three critical scales was investigated, respectively. It suggests the transformation of growth mode from quasi two-dimensional layer-by-layer to three-dimensional island for global fluctuations.

  14. Low temperature thin film transistors with hollow cathode plasma-assisted atomic layer deposition based GaN channels

    SciTech Connect (OSTI)

    Bolat, S., E-mail: bolat@ee.bilkent.edu.tr, E-mail: aokyay@ee.bilkent.edu.tr; Tekcan, B. [Department of Electrical and Electronics Engineering, Bilkent University, Ankara 06800 (Turkey); UNAM, National Nanotechnology Research Center, Bilkent University, Ankara 06800 (Turkey); Ozgit-Akgun, C.; Biyikli, N. [UNAM, National Nanotechnology Research Center, Bilkent University, Ankara 06800 (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey); Okyay, A. K., E-mail: bolat@ee.bilkent.edu.tr, E-mail: aokyay@ee.bilkent.edu.tr [Department of Electrical and Electronics Engineering, Bilkent University, Ankara 06800 (Turkey); UNAM, National Nanotechnology Research Center, Bilkent University, Ankara 06800 (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey)

    2014-06-16T23:59:59.000Z

    We report GaN thin film transistors (TFT) with a thermal budget below 250?C. GaN thin films are grown at 200?C by hollow cathode plasma-assisted atomic layer deposition (HCPA-ALD). HCPA-ALD-based GaN thin films are found to have a polycrystalline wurtzite structure with an average crystallite size of 9.3?nm. TFTs with bottom gate configuration are fabricated with HCPA-ALD grown GaN channel layers. Fabricated TFTs exhibit n-type field effect characteristics. N-channel GaN TFTs demonstrated on-to-off ratios (I{sub ON}/I{sub OFF}) of 10{sup 3} and sub-threshold swing of 3.3?V/decade. The entire TFT device fabrication process temperature is below 250?C, which is the lowest process temperature reported for GaN based transistors, so far.

  15. Photo Gallery

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

    to ultraviolet. Nova experiments provided confidence that a NIF-size laser could achieve thermonuclear ignition in a laboratory.<br>>

  16. Essays on International Trade Policy

    E-Print Network [OSTI]

    Tesfayesus, Asrat

    2013-01-01T23:59:59.000Z

    Fuels, Mineral Oils and Products of Their Distillation;Fats and Oil and Their Cleavage Products; PastrycooksBr$ m) Crude Oil LNG Refined Products Principal Imports (Br$

  17. The synthesis of a new class of macropolycyclic polyether ligands / by Robert Martin Holdar

    E-Print Network [OSTI]

    Holdar, Robert Martin

    1979-01-01T23:59:59.000Z

    ). Analogous procedures could give the substituted crowns, 15 (eq 3a and 3b). Conversion of the subst1tuents to bromomethyl g1ves 16 wh1ch can then be closed to give type B compounds (eq 4). 10 SCHEME I Br Br 0 0 0 OH HO 12 QH (2b) 13 Br Br Na...O ONa s Br 0 15 Br (3a) BX' OH 14 0 OH Br 15 ~ ~ (3b) 0 Br ~B (4) 16 RESULTS ~Stets is Newcomb obtained 5-bromo-1, 3-bi s(bromomethyl ) benzene, 14, by a multistep and low yield route which involved aromatic bromination of 4-amino...

  18. !"#$"%&'()*+$(,#$--$(%&((.$#/%0 1*+&"$)(2+%3-(4*$(5&"-$&#"%*�(!"+3-&"6

    E-Print Network [OSTI]

    Neirotti, Juan Pablo

    ):www.oliberal.com.br Tribuna do Norte (Rio Grande do Norte):www.tribunadonorte.com.br Zero Hora (Rio Grande do Sul

  19. 3. (20 points) For each pair of structures, indicate whether they are the same, enantiomers or diastereomers. Name ___________________

    E-Print Network [OSTI]

    Taber, Douglass

    in detail. O Exam #1 Friday, September 22, 2006 Chem 331 CH3 OHH BrH Br CH3H HHO OHH H 2. (10 points) Draw

  20. MANUAL DE COMPRAS -MATERIAL PERMANENTE DEPARTAMENTO DE COMPRAS E LICITAES -DCL/UFSC

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    .simm@ufsc.br (48) 3721-4251 ANA PAULA PERES ana.peres@ufsc.br (48) 3721-4250 EVELINE BOPPR eveline

  1. Surface modification of nitrogen-doped carbon nanotubes by ozone via atomic layer deposition

    SciTech Connect (OSTI)

    Lushington, Andrew; Liu, Jian; Tang, Yongji; Li, Ruying; Sun, Xueliang, E-mail: xsun@eng.uwo.ca [Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9 (Canada)

    2014-01-15T23:59:59.000Z

    The use of ozone as an oxidizing agent for atomic layer deposition (ALD) processes is rapidly growing due to its strong oxidizing capabilities. However, the effect of ozone on nanostructured substrates such as nitrogen-doped multiwalled carbon nanotubes (NCNTs) and pristine multiwalled carbon nanotubes (PCNTs) are not very well understood and may provide an avenue toward functionalizing the carbon nanotube surface prior to deposition. The effects of ALD ozone treatment on NCNTs and PCNTs using 10?wt. % ozone at temperatures of 150, 250, and 300?C are studied. The effect of ozone pulse time and ALD cycle number on NCNTs and PCNTs was also investigated. Morphological changes to the substrate were observed by scanning electron microscopy and high resolution transmission electron microscopy. Brunauer-Emmett-Teller measurements were also conducted to determine surface area, pore size, and pore size distribution following ozone treatment. The graphitic nature of both NCNTs and PCNTs was determined using Raman analysis while x-ray photoelectron spectroscopy (XPS) was employed to probe the chemical nature of NCNTs. It was found that O{sub 3} attack occurs preferentially to the outermost geometric surface of NCNTs. Our research also revealed that the deleterious effects of ozone are found only on NCNTs while little or no damage occurs on PCNTs. Furthermore, XPS analysis indicated that ALD ozone treatment on NCNTs, at elevated temperatures, results in loss of nitrogen content. Our studies demonstrate that ALD ozone treatment is an effective avenue toward creating low nitrogen content, defect rich substrates for use in electrochemical applications and ALD of various metal/metal oxides.

  2. Capacitance and conductance versus voltage characterization of Al{sub 2}O{sub 3} layers prepared by plasma enhanced atomic layer deposition at 25?C??T???200?C

    SciTech Connect (OSTI)

    Henkel, Karsten, E-mail: henkel@tu-cottbus.de; Tallarida, Massimo; Schmeier, Dieter [Applied Physics and Sensors, Brandenburg University of Technology Cottbus-Senftenberg, K.-Wachsmann-Allee 17, D-03046 Cottbus (Germany); Gargouri, Hassan; Gruska, Bernd; Arens, Michael [Sentech Instruments GmbH, Schwarzschildstrae 2, 12489 Berlin (Germany)

    2014-01-15T23:59:59.000Z

    In this work, plasma enhanced atomic layer deposited (PE-ALD) samples were prepared at substrate temperatures in the range between room temperature (RT) and 200?C and investigated by capacitancevoltage and conductancevoltage recordings. The measurements are compared to standard thermal atomic layer deposition (T-ALD) at 200?C. Very low interface state density (D{sub it}) ?10{sup 11}?eV{sup ?1}?cm{sup ?2} could be achieved for the PE-ALD process at 200?C substrate temperature after postdeposition anneal (PDA) in forming gas at 450?C. The PDA works very effectively for both the PE-ALD and T-ALD at 200?C substrate temperature delivering also similar values of negative fixed charge density (N{sub fix}) around ?2.5??10{sup 12}?cm{sup ?2}. At the substrate temperature of 150?C, highest N{sub fix} (?2.9??10{sup 12}?cm{sup ?2}) and moderate D{sub it} (2.7??10{sup 11}?eV{sup ?1}?cm{sup ?2}) values were observed. The as deposited PE-ALD layer at RT shows both low D{sub it} in the range of (1 to 3)??10{sup 11}?eV{sup ?1} cm{sup ?2} and low N{sub fix} (?4.4??10{sup 11}?cm{sup ?2}) at the same time. The dependencies of N{sub fix}, D{sub it}, and relative permittivity on the substrate temperatures and its adjustability are discussed.

  3. Numerical modeling of carrier gas flow in atomic layer deposition vacuum reactor: A comparative study of lattice Boltzmann models

    SciTech Connect (OSTI)

    Pan, Dongqing; Chien Jen, Tien [Department of Mechanical Engineering, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201 (United States); Li, Tao [School of Mechanical Engineering, Dalian University of Technology, Dalian 116024 (China); Yuan, Chris, E-mail: cyuan@uwm.edu [Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin 53211 (United States)

    2014-01-15T23:59:59.000Z

    This paper characterizes the carrier gas flow in the atomic layer deposition (ALD) vacuum reactor by introducing Lattice Boltzmann Method (LBM) to the ALD simulation through a comparative study of two LBM models. Numerical models of gas flow are constructed and implemented in two-dimensional geometry based on lattice BhatnagarGrossKrook (LBGK)-D2Q9 model and two-relaxation-time (TRT) model. Both incompressible and compressible scenarios are simulated and the two models are compared in the aspects of flow features, stability, and efficiency. Our simulation outcome reveals that, for our specific ALD vacuum reactor, TRT model generates better steady laminar flow features all over the domain with better stability and reliability than LBGK-D2Q9 model especially when considering the compressible effects of the gas flow. The LBM-TRT is verified indirectly by comparing the numerical result with conventional continuum-based computational fluid dynamics solvers, and it shows very good agreement with these conventional methods. The velocity field of carrier gas flow through ALD vacuum reactor was characterized by LBM-TRT model finally. The flow in ALD is in a laminar steady state with velocity concentrated at the corners and around the wafer. The effects of flow fields on precursor distributions, surface absorptions, and surface reactions are discussed in detail. Steady and evenly distributed velocity field contribute to higher precursor concentration near the wafer and relatively lower particle velocities help to achieve better surface adsorption and deposition. The ALD reactor geometry needs to be considered carefully if a steady and laminar flow field around the wafer and better surface deposition are desired.

  4. Surface and interfacial reaction study of InAs(100)-crystalline oxide interface

    SciTech Connect (OSTI)

    Zhernokletov, D. M. [Department of Physics, University of Texas at Dallas, Richardson, Texas 75080 (United States)] [Department of Physics, University of Texas at Dallas, Richardson, Texas 75080 (United States); Laukkanen, P. [Department of Physics and Astronomy, University of Turku, Turku FI-20014 (Finland)] [Department of Physics and Astronomy, University of Turku, Turku FI-20014 (Finland); Dong, H.; Brennan, B.; Kim, J. [Department of Materials Science and Engineering, University of Texas at Dallas, Richardson, Texas 75080 (United States)] [Department of Materials Science and Engineering, University of Texas at Dallas, Richardson, Texas 75080 (United States); Galatage, R. V. [Department of Electrical Engineering, University of Texas at Dallas, Richardson, Texas 75080 (United States)] [Department of Electrical Engineering, University of Texas at Dallas, Richardson, Texas 75080 (United States); Yakimov, M.; Tokranov, V.; Oktyabrsky, S. [College of Nanoscale Science and Engineering, University at Albany-SUNY, Albany, New York 12203 (United States)] [College of Nanoscale Science and Engineering, University at Albany-SUNY, Albany, New York 12203 (United States); Wallace, R. M. [Department of Physics, University of Texas at Dallas, Richardson, Texas 75080 (United States) [Department of Physics, University of Texas at Dallas, Richardson, Texas 75080 (United States); Department of Materials Science and Engineering, University of Texas at Dallas, Richardson, Texas 75080 (United States)

    2013-05-27T23:59:59.000Z

    A crystalline oxide film on InAs(100) is investigated with in situ monochromatic x-ray photoelectron spectroscopy and low energy electron diffraction before and after in situ deposition of Al{sub 2}O{sub 3} by atomic layer deposition (ALD) as well as upon air exposure. The oxidation process leads to arsenic and indium trivalent oxidation state formation. The grown epitaxial oxide-InAs interface is stable upon ALD reactor exposure; however, trimethyl aluminum decreases oxidation states resulting in an unreconstructed surface. An increase in oxide concentration is also observed upon air exposure suggesting the crystalline oxide surface is unstable.

  5. Nucleation and growth of MgO atomic layer deposition: A real-time spectroscopic ellipsometry study

    SciTech Connect (OSTI)

    Wang, Han; Fu, Kan [Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269. (United States)] [Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269. (United States)

    2013-11-15T23:59:59.000Z

    The atomic layer deposition (ALD) of MgO thin films from bis(cyclopentadienyl) magnesium and H{sub 2}O was studied using in-situ real-time spectroscopic ellipsometry (SE), ex-situ x-ray photoelectron spectroscopy, and grazing-incidence x-ray diffraction. It is found that the initial growth is not linear during the first ten cycles, and magnesium silicate forms spontaneously on the SiO{sub 2}/Si substrates at 250 C. Submonolayer sensitivity of SE is demonstrated by the analysis of each half-cycle and self-limiting adsorption, revealing characteristic features of hetero- and homo-MgO ALD processes.

  6. 2037 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim wileyonlinelibrary.comsmall 2011, 7, No. 14, 20372040 Silver Nanoparticles

    E-Print Network [OSTI]

    Yang, Peidong

    .[35] ALD synthesis of hollow sphere and nano- tube structures composed of Al2O3 have been also reported sized colloidal particles (silica spheres, polymer spheres, or monodisperse nanocrystals) are assem of monolayer hollow inorganic silica and inorganic hybrid spheres is also reported through the colloid

  7. Physics 2, 62 (2009) Heralding the storage of light

    E-Print Network [OSTI]

    Vuletic, Vladan

    2009-01-01T23:59:59.000Z

    Physics 2, 62 (2009) Viewpoint Heralding the storage of light Julien Laurat Laboratoire Kastler, demonstrate an atomic quantum mem- ory where the successful storage of a light beam is her- alded [2-level scheme with two ground states and one excited state--boosted this broad effort. A "write" laser pulse

  8. NFC Industrial Access and Equipment Rates valid 7/1/13 to 6/30/14 RATES SUBJECT TO CHANGE

    E-Print Network [OSTI]

    Amin, S. Massoud

    NFC Industrial Access and Equipment Rates valid 7/1/13 to 6/30/14 RATES SUBJECT TO CHANGE ACCESS/USE UNITS RATE ACCESS FEE monthly fee $91.00 LAB USAGE FEE per lab session $67.50 LAB USAGE MAX PER MONTH per month $631.00 EQUIPMENT INCLUDED EQUIPMENT UNITS RATE ALDATOMIC LAYER DEP ALD Savannah 200 minute

  9. Supporting Online Materials Electron Microscopy Observation of TiO2 Nanocrystal Evolution in High-

    E-Print Network [OSTI]

    Wang, Xudong

    ) A horizontal tube furnace system was used to perform the vapor deposition of ZnO NW. A small quartz tube 25 cm of the ALD chamber (stainless steel tube with a diameter of 2 inch) and 10 cm downstream away from the precursor injection nozzle. During the growth, a constant flow of 40 sccm N2 was applied into the chamber

  10. DOI: 10.1002/adma.200702781 Aerogel Templated ZnO Dye-Sensitized Solar Cells**

    E-Print Network [OSTI]

    as substructure templates. The aerogel templates are coated with ZnO via atomic layer deposition (ALD) to yieldDOI: 10.1002/adma.200702781 Aerogel Templated ZnO Dye-Sensitized Solar Cells** By Thomas W. Hamann produced from coating tem- plates of high aspect ratio substructures, exhibiting initial efficiencies up

  11. Carbon nanofiber supercapacitors with large areal capacitances James R. McDonough,1

    E-Print Network [OSTI]

    Cui, Yi

    growth rather than CNT growth see supplementary information Fig. S1 .10 Carbon aerogels CAs have also with nanosized MnO2 loaded inside aerogel pores.7 Preparation of our CNF-based SC electrodes consists of two approxi- mately 1 1 0.2 cm3 is conformally coated with a 1 nm alumina layer by atomic layer deposition ALD

  12. Mechanisms of Atomic Layer Deposition on Substrates with Ultrahigh Aspect Ratios

    E-Print Network [OSTI]

    as a very promising method for controlled coating of the inner surfaces of monolithic nanoporous aerogel (AG suited for coating substrates with ultrahigh aspect ratios (J103), including nanoporous solids. Here, we study the ALD of Cu and Cu3N on the inner surfaces of low-density nanoporous silica aerogel monoliths

  13. Impact of Chemical States on the Effective Work Function of Metal Gate and High-kappa Dielectric Materials on Novel Heterostructures

    E-Print Network [OSTI]

    Coan, Mary

    2012-10-19T23:59:59.000Z

    during the deposition of HfO2 using ALD and TEMAH as the reactant without breaking the Hf-N bond. The formation of a Ga-N(CH3)(CH2CH3) bond is significant because with the introduction of water into the system, the methyl and ethylmethyl groups may react...

  14. Learning and Teaching Academic Training and Development

    E-Print Network [OSTI]

    Painter, Kevin

    and Development website for news and updates throughout the year: www.hw.ac.uk/ald Learning & Teaching Symposium and collaborations with external institutions and national bodies (including the Higher Education Academy, LEADS is accredited by the Higher Education Academy (HEA). It provides new teachers or tutors

  15. Biotechnology at the Cutting Edge - Keasling

    SciTech Connect (OSTI)

    Keasling, Jay

    2010-01-01T23:59:59.000Z

    Jay Keasling, Berkeley Lab ALD for Biosciences and CEO of the Joint BioEnergy Institute, appears in a video on biotechnology at the Smithsonian's National Museum of American History. The video is part of en exhibit titled "Science in American Life," which examines the relationship between science, technology, progress and culture through artifacts, historical photographs and multimedia technology.

  16. Initiation of atomic layer deposition of metal oxides on polymer substrates by water plasma pretreatment

    SciTech Connect (OSTI)

    Steven Brandt, E.; Grace, Jeremy M. [Eastman Kodak Company, 1999 Lake Avenue, Rochester, New York 14650-2022 (United States)

    2012-01-15T23:59:59.000Z

    The role of surface hydroxyl content in atomic layer deposition (ALD) of aluminum oxide (AO) on polymers is demonstrated by performing an atomic layer deposition of AO onto a variety of polymer types, before and after pretreatment in a plasma struck in water vapor. The treatment and deposition reactions are performed in situ in a high vacuum chamber that is interfaced to an x-ray photoelectron spectrometer to prevent adventitious exposure to atmospheric contaminants. X-ray photoelectron spectroscopy is used to follow the surface chemistries of the polymers, including theformation of surface hydroxyls and subsequent growth of AO by ALD. Using dimethyl aluminum isopropoxide and water as reactants, ALD is obtained for water-plasma-treated poly(styrene) (PS), poly(propylene) (PP), poly(vinyl alcohol) (PVA), and poly(ethylene naphthalate) (PEN). For PS, PP, and PEN, initial growth rates of AO on the native (untreated) polymers are at least an order of magnitude lower than on the same polymer surface following the plasma treatment. By contrast, native PVA is shown to initiate ALD of AO as a result of the presence of intrinsic surface hydroxyls that are derived from the repeat unit of this polymer.

  17. Meet the trillions of tiny allies that

    E-Print Network [OSTI]

    Dennett, Daniel

    & A n WALKABLE TOWNS n IS GLUTEN-FREE FOR ME? MAGA ZINE OF THE GER ALD J. AND DOROTHY R. FRIEDMAN SCHOOL- cer and exercise study, for example, took several years and entailed developing a complicated search any good? By Julie Flaherty 14 If You Build It, They Will Walk Thoughtful town planning can get

  18. For More Information: http://www.nuc.berkeley.edu/ or 510-642-4077 The Oak Ridge National Laboratory (ORNL) is a U.S. Department of Energy,

    E-Print Network [OSTI]

    Zakhor, Avideh

    . As ALD, Dr. Icenhour leads three research divisions (Fusion and Materials for Nuclear Systems, Nuclear computing, advanced materials, nuclear science and engineering, biological and environmental science, energy capabilities are described, and the presentation focuses on the range of nuclear R&D programs

  19. Atomic layer deposition of photoactive CoO/SrTiO{sub 3} and CoO/TiO{sub 2} on Si(001) for visible light driven photoelectrochemical water oxidation

    SciTech Connect (OSTI)

    Ngo, Thong Q.; Hoang, Son; McDaniel, Martin D.; Buddie Mullins, C.; Ekerdt, John G. [Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712 (United States)] [Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712 (United States); Posadas, Agham; Seo, Hosung; Demkov, Alexander A. [Department of Physics, The University of Texas at Austin, Austin, Texas 78712 (United States)] [Department of Physics, The University of Texas at Austin, Austin, Texas 78712 (United States); Utess, Dirk; Triyoso, Dina H. [GLOBALFOUNDRIES Dresden, Wilschdorfer Landstrasse 101, Dresden DE-01109 (Germany)] [GLOBALFOUNDRIES Dresden, Wilschdorfer Landstrasse 101, Dresden DE-01109 (Germany)

    2013-08-28T23:59:59.000Z

    Cobalt oxide (CoO) films are grown epitaxially on Si(001) by atomic layer deposition (ALD) using a thin (1.6 nm) buffer layer of strontium titanate (STO) grown by molecular beam epitaxy. The ALD growth of CoO films is done at low temperature (170180 C), using cobalt bis(diisopropylacetamidinate) and water as co-reactants. Reflection high-energy electron diffraction, X-ray diffraction, and cross-sectional scanning transmission electron microscopy are performed to characterize the crystalline structure of the films. The CoO films are found to be crystalline as-deposited even at the low growth temperature with no evidence of Co diffusion into Si. The STO-buffered Si (001) is used as a template for ALD growth of relatively thicker epitaxial STO and TiO{sub 2} films. Epitaxial and polycrystalline CoO films are then grown by ALD on the STO and TiO{sub 2} layers, respectively, creating thin-film heterostructures for photoelectrochemical testing. Both types of heterostructures, CoO/STO/Si and CoO/TiO{sub 2}/STO/Si, demonstrate water photooxidation activity under visible light illumination. In-situ X-ray photoelectron spectroscopy is used to measure the band alignment of the two heterojunctions, CoO/STO and CoO/TiO{sub 2}. The experimental band alignment is compared to electronic structure calculations using density functional theory.

  20. Biotechnology at the Cutting Edge - Keasling

    ScienceCinema (OSTI)

    Keasling, Jay

    2013-05-29T23:59:59.000Z

    Jay Keasling, Berkeley Lab ALD for Biosciences and CEO of the Joint BioEnergy Institute, appears in a video on biotechnology at the Smithsonian's National Museum of American History. The video is part of en exhibit titled "Science in American Life," which examines the relationship between science, technology, progress and culture through artifacts, historical photographs and multimedia technology.

  1. NSF/SRC Engineering Research Center for Environmentally Benign Semiconductor Manufacturing Integrated ESH Assessment

    E-Print Network [OSTI]

    Rubloff, Gary W.

    NSF/SRC Engineering Research Center for Environmentally Benign Semiconductor Manufacturing 1 Integrated ESH Assessment: Cu CVD and ALD Unit Process Optimization (Thrust C, Task C-5) Wei Lei, Soon Cho for System Research University of Maryland, College Park Department of Chemical and Environmental

  2. Enantioselective Organocatalytic Indole Alkylations. Design of a New and Highly Effective Chiral Amine for Iminium Catalysis

    E-Print Network [OSTI]

    MacMillan, David W. C.

    structural motifs of established value in medicinal chemistry or complex target synthesis. In this regard the capacity of iminium catalysis to mediate the enantioselective coupling of pyrroles and R, -unsaturated alde nucleophiles. Despite struc- tural similarities, it has long been established7 that the pyrrole -system

  3. Development of atomic layer deposition-activated microchannel plates for single particle detection at cryogenic temperatures

    SciTech Connect (OSTI)

    Gorelikov, Dmitry, E-mail: dmitry@arradiance.com; Sullivan, Neal; Rouffignac, Philippe de; Li, Huazhi; Narayanamoorthy, Jayasri; Tremsin, Anton S. [Arradiance Inc., 142 North Road, Sudbury, Massachusetts 01776 (United States)

    2014-03-15T23:59:59.000Z

    Atomic layer deposition (ALD) technology is used to nanoengineer functional films inside the pores of microchannel plate (MCP) electron multipliers, enabling a novel MCP manufacturing technology that substantially improves performance and opens novel applications. The authors have developed custom tools and recipes for the growth of conformal films, with optimized conductance and secondary electron emission inside very long channels (?620??m diameter and >600??m length, with tens of millions of channels per single MCP) by ALD. The unique ability to tune the characteristics of these ALD films enables their optimization to applications where time-resolved single particle imaging can be performed in extreme conditions, such as high counting rates at cryogenic temperatures. Adhesion of the conductive and emissive nanofilms to the 20??m pore MCP glass substrates and their mechanical stability over a very wide range of temperatures (10700?K) were confirmed experimentally. Resistance of ALD MCPs was reproducible during multiple cool-down cycles with no film degradation observed. Optimizing resistance of novel MCPs for operation at cryogenic temperature should enable high count rate event detection at temperatures below 20?K.

  4. Initial growth, refractive index, and crystallinity of thermal and plasma-enhanced atomic layer deposition AlN films

    SciTech Connect (OSTI)

    Van Bui, Hao, E-mail: H.VanBui@utwente.nl; Wiggers, Frank B.; Gupta, Anubha; Nguyen, Minh D.; Aarnink, Antonius A. I.; Jong, Michel P. de; Kovalgin, Alexey Y., E-mail: A.Y.Kovalgin@utwente.nl [MESA Institute for Nanotechnology, University of Twente, P. O. Box 217, 7500 AE Enschede (Netherlands)

    2015-01-01T23:59:59.000Z

    The authors have studied and compared the initial growth and properties of AlN films deposited on Si(111) by thermal and plasma-enhanced atomic layer deposition (ALD) using trimethylaluminum and either ammonia or a N{sub 2}-H{sub 2} mixture as precursors. In-situ spectroscopic ellipsometry was employed to monitor the growth and measure the refractive index of the films during the deposition. The authors found that an incubation stage only occurred for thermal ALD. The linear growth for plasma-enhanced ALD (PEALD) started instantly from the beginning due to the higher nuclei density provided by the presence of plasma. The authors observed the evolution of the refractive index of AlN during the growth, which showed a rapid increase up to a thickness of about 30?nm followed by a saturation. Below this thickness, higher refractive index values were obtained for AlN films grown by PEALD, whereas above that the refractive index was slightly higher for thermal ALD films. X-ray diffraction characterization showed a wurtzite crystalline structure with a (101{sup }0) preferential orientation obtained for all the layers with a slightly better crystallinity for films grown by PEALD.

  5. Atomic Layer Deposition on Suspended Single-Walled Carbon Nanotubes via

    E-Print Network [OSTI]

    , and mechanical properties of the nanotubes. Atomic layer deposition (ALD) on single-walled carbon nanotubesAtomic Layer Deposition on Suspended Single-Walled Carbon Nanotubes via Gas-Phase Noncovalent, 2005; Revised Manuscript Received February 6, 2006 ABSTRACT Alternating exposures of nitrogen dioxide

  6. Carbon Nanosheets and Nanostructured Electrodes in Organic Photovoltaic Devices: Cooperative Research and Development Final Report, CRADA Number CRD-08-321

    SciTech Connect (OSTI)

    Olson, D.

    2012-04-01T23:59:59.000Z

    Carbon nanosheet thin films were employed as nanostructured electrodes in organic solar cells. Due to the nanostructured texture of the carbon nanosheet electrodes, there was an increase in performance over standard ITO electrodes with very thick active layers. ZnO deposited via atomic layer deposition (ALD) was used as a hole blocking layer to provide for carrier selectivity of the carbon nanosheets.

  7. ATOMIC-LAYER-DEPOSITED ALUMINUM OXIDE FOR THE SURFACE PASSIVATION OF HIGH-EFFICIENCY SILICON SOLAR CELLS

    E-Print Network [OSTI]

    ATOMIC-LAYER-DEPOSITED ALUMINUM OXIDE FOR THE SURFACE PASSIVATION OF HIGH-EFFICIENCY SILICON SOLAR to those measured on reference cells passivated by an aluminum-annealed thermal SiO2, while those of the Al of aluminum ox- ide (Al2O3) grown by atomic layer deposition (ALD) pro- vide an excellent level of sur

  8. Gas phase reaction products during tungsten atomic layer deposition using WF6 and Si2H6

    E-Print Network [OSTI]

    George, Steven M.

    Gas phase reaction products during tungsten atomic layer deposition using WF6 and Si2H6 R. K; published 23 July 2004 The gas phase reaction products during tungsten W atomic layer deposition ALD using WF6 and Si2H6 were studied using quadrupole mass spectrometry. The gas phase reactions products were

  9. Energy Technology Division research summary - 1999.

    SciTech Connect (OSTI)

    NONE

    1999-03-31T23:59:59.000Z

    The Energy Technology Division provides materials and engineering technology support to a wide range of programs important to the US Department of Energy. As shown on the preceding page, the Division is organized into ten sections, five with concentrations in the materials area and five in engineering technology. Materials expertise includes fabrication, mechanical properties, corrosion, friction and lubrication, and irradiation effects. Our major engineering strengths are in heat and mass flow, sensors and instrumentation, nondestructive testing, transportation, and electromechanics and superconductivity applications. The Division Safety Coordinator, Environmental Compliance Officers, Quality Assurance Representative, Financial Administrator, and Communication Coordinator report directly to the Division Director. The Division Director is personally responsible for cultural diversity and is a member of the Laboratory-wide Cultural Diversity Advisory Committee. The Division's capabilities are generally applied to issues associated with energy production, transportation, utilization, or conservation, or with environmental issues linked to energy. As shown in the organization chart on the next page, the Division reports administratively to the Associate Laboratory Director (ALD) for Energy and Environmental Science and Technology (EEST) through the General Manager for Environmental and Industrial Technologies. While most of our programs are under the purview of the EEST ALD, we also have had programs funded under every one of the ALDs. Some of our research in superconductivity is funded through the Physical Research Program ALD. We also continue to work on a number of nuclear-energy-related programs under the ALD for Engineering Research. Detailed descriptions of our programs on a section-by-section basis are provided in the remainder of this book.

  10. Flexible Ultra Moisture Barrier Film for Thin-Film Photovoltaic Applications

    SciTech Connect (OSTI)

    David M. Dean

    2012-10-30T23:59:59.000Z

    Flexible Thin-film photovoltaic (TFPV) is a low cost alternative to incumbent c-Si PV products as it requires less volume of costly semiconductor materials and it can potentially reduce installation cost. Among the TFPV options, copper indium gallium diselenide (CIGS) has the highest efficiency and is believed to be one of the most attractive candidates to achieve PV cost reduction. However, CIGS cells are very moisture sensitive and require module water vapor transmission rate (WVTR) of less than 1x10-4 gram of water per square meter per day (g-H2O/m2/day). Successful development and commercialization of flexible transparent ultra moisture barrier film is the key to enable flexible CIGS TFPV products, and thus enable ultimate PV cost reduction. At DuPont, we have demonstrated at lab scale that we can successfully make polymer-based flexible transparent ultra moisture barrier film by depositing alumina on polymer films using atomic layer deposition (ALD) technology. The layer by layer ALD approach results in uniform and amorphous structure which effectively reduces pinhole density of the inorganic coating on the polymer, and thus allow the fabrication of flexible barrier film with WVTR of 10-5 g-H2O/m2/day. Currently ALD is a time-consuming process suitable only for high-value, relatively small substrates. To successfully commercialize the ALD-on-plastic technology for the PV industry, there is the need to scale up this technology and improve throughput. The goal of this contract work was to build a prototype demonstrating that the ALD technology could be scaled-up for commercial use. Unfortunately, the prototype failed to produce an ultra-barrier film by the close of the project.

  11. Two-photon polarization data storage in bacteriorhodopsin films and its potential use in security applications

    SciTech Connect (OSTI)

    Imhof, Martin; Hampp, Norbert, E-mail: hampp@staff.uni-marburg.de [Department of Chemistry, Material Sciences Center, University of Marburg, Hans-Meerwein-Str., D-35032 Marburg (Germany); Rhinow, Daniel [Max-Planck-Institute of Biophysics, Max-von-Laue-Strae 3, D-60438 Frankfurt (Germany)

    2014-02-24T23:59:59.000Z

    Bacteriorhodopsin (BR) films allow write-once-read-many recording of polarization data by a two-photon-absorption (TPA) process. The optical changes in BR films induced by the TPA recording were measured and the Mller matrix of a BR film was determined. A potential application of BR films in security technology is shown. Polarization data can be angle-selective retrieved with high signal-to-noise ratio. The BR film does not only carry optical information but serves also as a linear polarizer. This enables that polarization features recorded in BR films may be retrieved by merely using polarized light from a mobile phone display.

  12. Bloch-Ogus Sequence in Degree Two Brussel and Tengan

    E-Print Network [OSTI]

    ) ! H1'et(_(p), ~n(r-1)) ! ~n(r-* *2)(k) ! 0 htp=1 0 ! nBr(A) ! nBr(K) ! H1 _(p), Z=n ! ~-1n! 0 htp=1

  13. Community Genomic, Proteomic, and Transcriptomic Analyses of Acid Mine Drainage Biofilm Communities

    E-Print Network [OSTI]

    Goltsman, Daniela

    2013-01-01T23:59:59.000Z

    of samples. BR: bioreactor samples, Env: environmentalC10 GS05 BR / Adrift Env. Bioreactor P1 - Percent variationB) dimensions 1 and 3. Bioreactor samples: R1-GS0, R1-GS05,

  14. Bando Mobilit Internazionale 2013/2014 Scuola di Architettura e Societ Accordi Bilaterali Extra-UE

    E-Print Network [OSTI]

    www.unb.br Balducci Urb LM 2 Universidade Federal da Bahia www.portal.ufba.br Dorigati Arch LM 3 Catolica del Per www.pucp.edu.pe Lucchini Arch LM 2 RUSSIA Moscow Institute of Architecture www

  15. FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH

    E-Print Network [OSTI]

    Lesieutre, Bernard

    2013-01-01T23:59:59.000Z

    connected to the d-axis stator winding, and it is separatedi bs ? as ? bs i ar i br ? ar ? br ? r stator main windingvoltage stator auxiliary winding voltage stator main winding

  16. CONVOCATORIA A PRESENTACIN DE ARTCULOS 01/2013 Dossier "Estado y Polticas Pblicas"

    E-Print Network [OSTI]

    Paran, Universidade Federal do

    -PR - Brasil Tel.: (41) 3360-5233- www.ser.ufpr.br/politica - E-mail: revistacienciapolitica@gmail.com Los nuestro sitio web: www.ser.ufpr.br/politica, o por correo electrnico: revistacienciapolitica

  17. Photo Gallery

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

    are built to resist vibration. They are firmly anchored to the building's reinforced concrete walls, which are 0.6 meters (two feet) thick.<br>>

  18. 2014 International SWAT Conference July 28-29. 2014 Workshops

    E-Print Network [OSTI]

    30, 2014. Organizing Committee: Suzana Montenegro, UFPE ­ Recife, BR Betânia Freire, UFRPE ­ Recife ­ Recife, BR Contact: Suzana Maria Gico Lima Montenegro Universidade Federal de Pernambuco - Brasil E

  19. arXiv:1407.2817v2 [math.OC] 29 Jul 2014

    E-Print Network [OSTI]

    2014-07-30T23:59:59.000Z

    Jul 29, 2014 ... Independently, they are useful for mapping the energy ..... for x0 ? Br(x?), v?1 ? Br(v?)?SX and h ? h0, one of the following alternatives are.

  20. Erosion control reduces fine particles in runoff to Lake Tahoe

    E-Print Network [OSTI]

    Grismer, Mark E.; Ellis, A. L.

    2006-01-01T23:59:59.000Z

    incorporation of woodchips, or compost combined with mulchPN) Br ca, El el (100 kg/ha) Compost Biosol PN over straw Elel, El gl, Br ca Compost Biosol PN None Caltrans type-B

  1. Trees (2007) 21:141150 DOI 10.1007/s00468-006-0104-0

    E-Print Network [OSTI]

    behavior in central Asian juniper trees has been forced by solar radiation variations controlled via cloud), Tibet (Br¨auning 1994; Br¨auning and Mantwill 2004), Nepal (Cook et al. 2003), Pakistan (Esper et al

  2. Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    -Gaubert), galoroux@usp.br (G.C. LeRoux), cdfcdf2@yahoo.com, charles.jesus@bioetanol.org.br (C.D.F. de Jesus), ajgcruz

  3. A Hierarchical Characterization of a Live Streaming Media Workload Eveline Veloso Virgilio Almeida Wagner Meira Azer Bestavros Shudong Jin

    E-Print Network [OSTI]

    A Hierarchical Characterization of a Live Streaming Media Workload£ Eveline Veloso Virg´ilio Almeida Wagner Meira Azer Bestavros Shudong Jin eveline@dcc.ufmg.br virgilio@dcc.ufmg.br meira

  4. A Hierarchical Characterization of a Live Streaming Media Workload Eveline Veloso Virg lio Almeida Wagner Meira Azer Bestavros Shudong Jin

    E-Print Network [OSTI]

    A Hierarchical Characterization of a Live Streaming Media Workload #3; Eveline Veloso Virg?? �lio Almeida Wagner Meira Azer Bestavros Shudong Jin eveline@dcc.ufmg.br virgilio@dcc.ufmg.br meira

  5. ISDA 2010, Montpellier, June 28-30, 2010 1 THE EVOLUTION OF RESEARCH AND DEVELOPMENT

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    IN BRAZIL Roseli ROCHA DOS SANTOS *, Evelin LUCHT ** * QUIS Research Group UniBrasil Curitiba Brasil rmrsantos@terra.com.br ** QUIS Research Group UniBrasil Curitiba Brasil evelin_lucht@yahoo.com.br Abstract

  6. Interaction of copper(II) halides with 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 (L) in acidic media: Crystal structure and spectral characteristics of (HL){sub 2}[Cu{sub 2}Cl{sub 6}] and (HL)[CuBr{sub 2}

    SciTech Connect (OSTI)

    Kovalchukova, O. V., E-mail: okovalchukova@mail.ru [Peoples' Friendship University of Russia (Russian Federation); Stash, A. I. [Karpov Institute of Physical Chemistry (Russian Federation); Strashnova, S. B. [Peoples' Friendship University of Russia (Russian Federation); Belsky, V. K. [Karpov Institute of Physical Chemistry (Russian Federation); Tung, Tran Than; Zaitsev, B. E. [Peoples' Friendship University of Russia (Russian Federation)

    2008-05-15T23:59:59.000Z

    4-(Piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinonium-7,12 hexachlorodicuprate(II) and 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinonium-7,12 dibromocuprate(I) are isolated in the crystalline state and investigated using X-ray diffraction. It is established that the Cu(II) cation is reduced to the Cu(I) cation during the synthesis of anionic bromocuprate complexes in the presence of hydrobromic acid. The spectral characteristics of the prepared compounds are discussed.

  7. Possible hydride and methide transfer reactions: Reactions of Fe(CO){sub 4}R{sup -} (R=H, CH{sub 3}) and W(CO){sub 5}R{sup -} (R = H, CH{sub 3}, CL, Br, I) with metal carbonyl cations

    SciTech Connect (OSTI)

    Wang, P.; Striejewske, W.S.; Atwood, J.D. [State Univ. of New York, Buffalo, NY (United States)

    1996-02-01T23:59:59.000Z

    Reactions of metal carbonyl cations (M(CO){sub 6}{sup +}, M = Mn, Re) with hydride-, methide- or halide-containing metal carbonyl anions Fe(CO){sub 4}R{sup -}, R = H, Me; W(CO){sub 5} (CH{sub 3}CN) and W(CO){sub 5}X{sup -}. In contrast, the tungsten hydride and methide complexes react, predominantly, by transfer of the hydride or methide to a carbonyl of the cation at a much faster rate. The iron hydride and methide complexes react by iron-based nucleophilicity involving a two-electron process.

  8. A mathematical model of the current-potential characteristics for the bromine/bromide ion electrochemical system

    E-Print Network [OSTI]

    Lorimer, Susan Elaine

    1982-01-01T23:59:59.000Z

    ZI Susan Elaine Lorimer, B. S. , Texas A&M University Chairman of Advisory Committee: Dr. R. E. white A mathematical model was developed for the BrZ/Br electro- chemical system and was used to predict the current density produced by the Hr /Br..., convection, and ionic migration; and the homogeneous tribromide formation reaction. The predicted current density-overpotential curves could be compared to experimentally produced curves for the BrZ/Hr electrode reaction because the model was a...

  9. May 18, 2012 SBIR Alerting Service

    E-Print Network [OSTI]

    .1-004 Thallium Bromide (TlBr) Crystal Modules for Room-Temperature Gamma Radiation Detection #12; 11

  10. on-Toblerian Geographical Spaces Gilberto Cmara1*

    E-Print Network [OSTI]

    Camara, Gilberto

    de Vasconcelos, 122, 35.400-000 Ouro Preto, Brazil {tiago.carneiro} @iceb.ufo.br Abstract. This work

  11. Daily Reporting Rainfall Station CONDAMINE RIVER -WARWICK TO COTSWOLD Manual Heavy Rainfall Station

    E-Print Network [OSTI]

    Greenslade, Diana

    Chinchilla Weir Chinchilla TM Burncluith Br Charley's Seven OaksTM Bawnduggie TM Brigalow Bridge TM Canaga Ck

  12. Synthesis and Understanding of Novel Catalysts

    SciTech Connect (OSTI)

    Stair, Peter C. [Northwestern University] [Northwestern University

    2013-07-09T23:59:59.000Z

    The research took advantage of our capabilities to perform in-situ and operando Raman spectroscopy on complex systems along with our developing expertise in the synthesis of uniform, supported metal oxide materials to investigate relationships between the catalytically active oxide composition, atomic structure, and support and the corresponding chemical and catalytic properties. The project was organized into two efforts: 1) Synthesis of novel catalyst materials by atomic layer deposition (ALD). 2) Spectroscopic and chemical investigations of coke formation and catalyst deactivation. ALD synthesis was combined with conventional physical characterization, Raman spectroscopy, and probe molecule chemisorption to study the effect of supported metal oxide composition and atomic structure on acid-base and catalytic properties. Operando Raman spectroscopy studies of olefin polymerization leading to coke formation and catalyst deactivation clarified the mechanism of coke formation by acid catalysts.

  13. Ultra-low loading Pt nanocatalysts prepared by atomic layer deposition on carbon aerogels

    SciTech Connect (OSTI)

    King, J S; Wittstock, A; Biener, J; Kucheyev, S O; Wang, Y M; Baumann, T F; Giri, S; Hamza, A V; Baeumer, M; Bent, S F

    2008-04-21T23:59:59.000Z

    Using atomic layer deposition (ALD), we show that Pt nanoparticles can be deposited on the inner surfaces of carbon aerogels (CA). The resultant Pt-loaded materials exhibit high catalytic activity for the oxidation of CO even at loading levels as low as {approx}0.05 mg Pt/cm{sup 2}. We observe a conversion efficiency of nearly 100% in the temperatures range 150-250 C, and the total conversion rate seems to be only limited by the thermal stability of our CA support in ambient oxygen. Our ALD approach described here is universal in nature, and can be applied to the design of new catalytic materials for a variety of applications, including fuel cells, hydrogen storage, pollution control, green chemistry, and liquid fuel production.

  14. Influence of Atomic Layer Deposition Temperatures on TiO2/n-Si MOS Capacitor

    SciTech Connect (OSTI)

    Wei, Daming [Kansas State University; Hossain, T [Kansas State University; Garces, N. Y. [Naval Research Laboratory, Washington, D.C.; Nepal, N. [Naval Research Laboratory, Washington, D.C.; Meyer III, Harry M [ORNL; Kirkham, Melanie J [ORNL; Eddy, C.R., Jr. [Naval Research Laboratory, Washington, D.C.; Edgar, J H [Kansas State University

    2013-01-01T23:59:59.000Z

    This paper reports on the influence of temperature on the structure, composition, and electrical properties of TiO2 thin films deposited on n-type silicon (100) by atomic layer deposition (ALD). TiO2 layers around 20nm thick, deposited at temperatures ranging from 100 to 300 C, were studied. Samples deposited at 250 C and 200 C had the most uniform coverage as determined by atomic force microscopy. The average carbon concentration throughout the oxide layer and at the TiO2/Si interface was lowest at 200 C. Metal oxide semiconductor capacitors (MOSCAPs) were fabricated, and profiled by capacitance-voltage techniques. Negligible hysteresis was observed from a capacitance-voltage plot and the capacitance in the accumulation region was constant for the sample prepared at a 200 C ALD growth temperature. The interface trap density was on the order of 1013 eV-1cm-2 regardless of the deposition temperature.

  15. Hybrid inorganicorganic superlattice structures with atomic layer deposition/molecular layer deposition

    SciTech Connect (OSTI)

    Tynell, Tommi; Yamauchi, Hisao; Karppinen, Maarit, E-mail: maarit.karppinen@aalto.fi [Department of Chemistry, Aalto University, FI-00076 Aalto (Finland)

    2014-01-15T23:59:59.000Z

    A combination of the atomic layer deposition (ALD) and molecular layer deposition (MLD) techniques is successfully employed to fabricate thin films incorporating superlattice structures that consist of single layers of organic molecules between thicker layers of ZnO. Diethyl zinc and water are used as precursors for the deposition of ZnO by ALD, while three different organic precursors are investigated for the MLD part: hydroquinone, 4-aminophenol and 4,4?-oxydianiline. The successful superlattice formation with all the organic precursors is verified through x-ray reflectivity studies. The effects of the interspersed organic layers/superlattice structure on the electrical and thermoelectric properties of ZnO are investigated through resistivity and Seebeck coefficient measurements at room temperature. The results suggest an increase in carrier concentration for small concentrations of organic layers, while higher concentrations seem to lead to rather large reductions in carrier concentration.

  16. Film properties of low temperature HfO{sub 2} grown with H{sub 2}O, O{sub 3}, or remote O{sub 2}-plasma

    SciTech Connect (OSTI)

    Richter, Claudia, E-mail: Claudia.Richter@namlab.com; Schenk, Tony; Schroeder, Uwe [NaMLab gGmbH, Noethnitzerstr. 64, 01187 Dresden (Germany); Mikolajick, Thomas [NaMLab gGmbH, Noethnitzerstr. 64, 01187 Dresden, Germany and Institut fr Halbleiter und Mikrosystemtechnik, TU Dresden, Noethnitzerstr. 64, 01187 Dresden (Germany)

    2014-01-15T23:59:59.000Z

    A reduction of the deposition temperature is necessary for atomic layer deposition (ALD) on organic devices. HfO{sub 2} films were deposited by ALD on silicon substrates in a wide temperature range from 80 to 300?C with tetrakis[ethylmethylamino]hafnium as metal precursor and H{sub 2}O, O{sub 3}, or an remote O{sub 2}-plasma as oxygen source. Growth rate and density were correlated to electrical properties like dielectric constant and leakage current of simple capacitor structures to evaluate the impact of different process conditions. Process optimizations were performed to reduce film imperfections visible at lower deposition temperatures. Additionally, the influence of postdeposition annealing on the structural and electrical properties was studied.

  17. Infrared study on room-temperature atomic layer deposition of HfO{sub 2} using tetrakis(ethylmethylamino)hafnium and remote plasma-excited oxidizing agents

    SciTech Connect (OSTI)

    Kanomata, Kensaku [Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan and Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083 (Japan); Ohba, Hisashi; Pungboon Pansila, P.; Ahmmad, Bashir; Kubota, Shigeru; Hirahara, Kazuhiro; Hirose, Fumihiko, E-mail: fhirose@yz.yamagata-u.ac.jp [Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510 (Japan)

    2015-01-01T23:59:59.000Z

    Room-temperature atomic layer deposition (ALD) of HfO{sub 2} was examined using tetrakis (ethylmethylamino)hafnium (TEMAH) and remote plasma-excited water and oxygen. A growth rate of 0.26?nm/cycle at room temperature was achieved, and the TEMAH adsorption and its oxidization on HfO{sub 2} were investigated by multiple internal reflection infrared absorption spectroscopy. It was observed that saturated adsorption of TEMAH occurs at exposures of ?1??10{sup 5}?L (1 L?=?1??10{sup ?6} Torr s) at room temperature, and the use of remote plasma-excited water and oxygen vapor is effective in oxidizing the TEMAH molecules on the HfO{sub 2} surface, to produce OH sites. The infrared study suggested that HfOH plays a role as an adsorption site for TEMAH. The reaction mechanism of room temperature HfO{sub 2} ALD is discussed in this paper.

  18. Ultra-thin microporous/hybrid materials

    DOE Patents [OSTI]

    Jiang, Ying-Bing (Albuquerque, NM); Cecchi, Joseph L. (Albuquerque, NM); Brinker, C. Jeffrey (Albuquerque, NM)

    2012-05-29T23:59:59.000Z

    Ultra-thin hybrid and/or microporous materials and methods for their fabrication are provided. In one embodiment, the exemplary hybrid membranes can be formed including successive surface activation and reaction steps on a porous support that is patterned or non-patterned. The surface activation can be performed using remote plasma exposure to locally activate the exterior surfaces of porous support. Organic/inorganic hybrid precursors such as organometallic silane precursors can be condensed on the locally activated exterior surfaces, whereby ALD reactions can then take place between the condensed hybrid precursors and a reactant. Various embodiments can also include an intermittent replacement of ALD precursors during the membrane formation so as to enhance the hybrid molecular network of the membranes.

  19. 0361-0128/01/3386/1397-15 $6.00 1397 Introduction

    E-Print Network [OSTI]

    Banks, David

    water-rock interactions. Brines formed by dissolution of evaporites and by seawater evaporation have in the resid- ual brine, as it cannot be accommodated in the halite crystal lattice. Conversely, when halite is dissolved, the resulting brine will have low Br concentration and the Cl/Br and Na/Br ratios

  20. Quaternion Generation of the 2Torsion Part of the Brauer Group of a Local Quintic

    E-Print Network [OSTI]

    Bielefeld, University of

    , and let K = k(X) be its function field. Then Kjk is a function field, that is, K is a separable and finitely generated field extension of k. Let Br nr (Kjk) be the unramified Brauer group of K (with respect nr (Kjk). (Below we shall write Br X instead of Br nr (Kjk), keeping in mind this identification

  1. Portal Gterra Jornais Online

    E-Print Network [OSTI]

    Barbosa, Marcia C. B.

    parabeniza professora ganhadora do Prmio L'... http://www.gterra.com.br/politica/iracema-parabeniza-pr... 1 of 7 11/08/2012 03:56 AM #12;Iracema parabeniza professora ganhadora do Prmio L'... http://www.gterra.com.br/politica cientfico do Pas. Iracema parabeniza professora ganhadora do Prmio L'... http://www.gterra.com.br/politica

  2. THE BRAIDED THOMPSON'S GROUPS ARE OF TYPE F# KAIUWE BUX, MARTIN G. FLUCH, MARCO SCHWANDT, STEFAN WITZEL,

    E-Print Network [OSTI]

    Moeller, Ralf

    THE BRAIDED THOMPSON'S GROUPS ARE OF TYPE F# KAIUWE BUX, MARTIN G. FLUCH, MARCO SCHWANDT, STEFAN WITZEL, AND MATTHEW C. B. ZAREMSKY Abstract. We prove that the braided Thompson's groups V br and F br , and the braid groups B n . A braided variant of Thompson's group V , which we will denote V br , was introduced

  3. A Method for Measurement of 3-Bromotyrosine Concentrations in Canine Serum and Its Clinical Application

    E-Print Network [OSTI]

    Sattasathuchana, Panpicha

    2014-10-30T23:59:59.000Z

    in canine serum, (2) establish a reference interval for serum 3-BrY concentrations in healthy pet dogs, (3) determine the short-term stability of canine serum 3-BrY concentrations, and (4) evaluate the clinical usefulness of measuring 3-BrY concentrations...

  4. Fast hashing onto elliptic curves over elds of characteristic 3

    E-Print Network [OSTI]

    and Hae Y. Kim 2 1 Scopus Tecnologia S. A. Av. Mutinga, 4105 BR 05110{000 S~ao Paulo (SP), Brazil, tr. 3, 158 BR 05508-900, S~ao Paulo(SP), Brazil. hae@lps.usp.br Abstract. We describe a fast hash by patents. Currently, the BLS algorithm has only been instantiated for supersingular elliptic curves over F

  5. REFERNCIA BIBLIOGRFICA BIBLIOGRAPHIC REFERENCE

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    Technology Instituto de Tecnologia de Alimentos - ITAL Av. Brasil, 2880 - Caixa Postal 139 - Jd. Brasil 13073. Rodriguez-Amaya - UNICAMP, Campinas/SP-BR Dietrich G. Quast - Inst. Mau de Tecnologia, So Caetano do Sul - ITAL, Campinas/SP-BR Walter Borzani - Inst. Mau de Tecnologia, So Caetano do Sul/SP-BR #12

  6. An Infrastructure for Management of Fault Tolerant CORBA Applications

    E-Print Network [OSTI]

    Endler, Markus

    ~ao Paulo - Brazil 22453-900 Rio de Janeiro - Brazil mmoura@ime.usp.br endler@inf.puc-rio.br PUC, Teresina - PI, Brazil. E-mail: mmoura@armazemparaiba.com.br #12; 1 Introduction Throughout the last two energy stations' management, patients vital signal monitoring, etc. In these environments, a single

  7. J. Am. Chem. SOC.1985, 107, 109-115 109 Alkylation of Enolate Ions

    E-Print Network [OSTI]

    Ellison, Barney

    for studying gas-phase ion-molecule chemistry in which the neutral reaction products are collected; material collected on this column is separated by capillary chromatography and the individual componentsare with a rate constant of 3.9 X cm3molecule-' + CH3Br - + Br- * + Br- s-l to produceonly the product resulting

  8. LDRD Project 52523 final report :Atomic layer deposition of highly conformal tribological coatings.

    SciTech Connect (OSTI)

    Jungk, John Michael (University of Minnesota); Dugger, Michael Thomas; George, Steve M. (University of Colorado); Prasad, Somuri V.; Grubbs, Robert K.; Moody, Neville Reid; Mayer, Thomas Michael; Scharf, Thomas W.; Goeke, Ronald S.; Gerberich, William W. (University of Minnesota)

    2005-10-01T23:59:59.000Z

    Friction and wear are major concerns in the performance and reliability of micromechanical (MEMS) devices. While a variety of lubricant and wear resistant coatings are known which we might consider for application to MEMS devices, the severe geometric constraints of many micromechanical systems (high aspect ratios, shadowed surfaces) make most deposition methods for friction and wear-resistance coatings impossible. In this program we have produced and evaluate highly conformal, tribological coatings, deposited by atomic layer deposition (ALD), for use on surface micromachined (SMM) and LIGA structures. ALD is a chemical vapor deposition process using sequential exposure of reagents and self-limiting surface chemistry, saturating at a maximum of one monolayer per exposure cycle. The self-limiting chemistry results in conformal coating of high aspect ratio structures, with monolayer precision. ALD of a wide variety of materials is possible, but there have been no studies of structural, mechanical, and tribological properties of these films. We have developed processes for depositing thin (<100 nm) conformal coatings of selected hard and lubricious films (Al2O3, ZnO, WS2, W, and W/Al{sub 2}O{sub 3} nanolaminates), and measured their chemical, physical, mechanical and tribological properties. A significant challenge in this program was to develop instrumentation and quantitative test procedures, which did not exist, for friction, wear, film/substrate adhesion, elastic properties, stress, etc., of extremely thin films and nanolaminates. New scanning probe and nanoindentation techniques have been employed along with detailed mechanics-based models to evaluate these properties at small loads characteristic of microsystem operation. We emphasize deposition processes and fundamental properties of ALD materials, however we have also evaluated applications and film performance for model SMM and LIGA devices.

  9. CONCEPT: N-TYPE SILICON SOLAR CELLS WITH SURFACE-PASSIVATED SCREEN-PRINTED ALUMINUM-ALLOYED REAR EMITTER

    E-Print Network [OSTI]

    THE ALU+ CONCEPT: N-TYPE SILICON SOLAR CELLS WITH SURFACE- PASSIVATED SCREEN-PRINTED ALUMINUM-ALLOYED ABSTRACT Aluminum-doped p-type (Al-p + ) silicon emitters fabricated by means of screen-printing and firing-Si) and atomic-layer-deposited (ALD) aluminum oxide (Al2O3) as well as Al2O3/SiNx stacks, where the silicon

  10. Plasma enhanced atomic layer batch processing of aluminum doped titanium dioxide

    SciTech Connect (OSTI)

    Lehnert, Wolfgang; Ruhl, Guenther; Gschwandtner, Alexander [Infineon Technologies AG, Wernerwerkstrasse 2, Regensburg, 93049 (Germany); R3T GmbH, Hochstrasse 1, Taufkirchen, 82024 (Germany)

    2012-01-15T23:59:59.000Z

    Among many promising high-k dielectrics, TiO{sub 2} is an interesting candidate because of its relatively high k value of over 40 and its easy integration into existing semiconductor manufacturing schemes. The most critical issues of TiO{sub 2} are its low electrical stability and its high leakage current density. However, doping TiO{sub 2} with Al has shown to yield significant improvement of layer quality on Ru electrodes [S. K. Kim et al., Adv. Mater. 20, 1429 (2008)]. In this work we investigated if atomic layer deposition (ALD) of Al doped TiO{sub 2} is feasible in a batch system. Electrical characterizations were done using common electrode materials like TiN, TaN, or W. Additionally, the effect of plasma enhanced processing in this reactor was studied. For this investigation a production batch ALD furnace has been retrofitted with a plasma source which can be used for post deposition anneals with oxygen radicals as well as for directly plasma enhanced ALD. After evaluation of several Ti precursors a deposition process for AlTiO{sub x} with excellent film thickness and composition uniformity was developed. The effects of post deposition anneals, Al{sub 2}O{sub 3} interlayers between electrode and TiO{sub 2}, Al doping concentration, plasma enhanced deposition and electrode material type on leakage current density are shown. An optimized AlTiO{sub x} deposition process on TaN electrodes yields to leakage current density of 5 x 10{sup -7} A/cm{sup 2} at 2 V and k values of about 35. Thus, it could be demonstrated that a plasma enhanced batch ALD process for Al doped TiO{sub 2} is feasible with acceptable leakage current density on a standard electrode material.

  11. Dispersion engineered high-Q silicon Nitride Ring-Resonators via Atomic Layer Deposition

    E-Print Network [OSTI]

    Riemensberger, Johann; Herr, Tobias; Brasch, Victor; Holzwarth, Ronald; Kippenberg, Tobias J

    2012-01-01T23:59:59.000Z

    We demonstrate dispersion engineering of integrated silicon nitride based ring resonators through conformal coating with hafnium dioxide deposited on top of the structures via atomic layer deposition (ALD). Both, magnitude and bandwidth of anomalous dispersion can be significantly increased. All results are confirmed by high resolution frequency-comb-assisted-diode-laser spectroscopy and are in very good agreement with the simulated modification of the mode spectrum.

  12. Fabrication of AlN/BN bishell hollow nanofibers by electrospinning and atomic layer deposition

    SciTech Connect (OSTI)

    Haider, Ali; Kayaci, Fatma; Uyar, Tamer; Biyikli, Necmi, E-mail: biyikli@unam.bilkent.edu.tr [National Nanotechnology Research Center (UNAM), Bilkent University, Bilkent, Ankara 06800 (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, Bilkent, Ankara 06800 (Turkey); Ozgit-Akgun, Cagla [National Nanotechnology Research Center (UNAM), Bilkent University, Bilkent, Ankara 06800 (Turkey); Okyay, Ali Kemal [National Nanotechnology Research Center (UNAM), Bilkent University, Bilkent, Ankara 06800 (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, Bilkent, Ankara 06800 (Turkey); Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, Ankara 06800 (Turkey)

    2014-09-01T23:59:59.000Z

    Aluminum nitride (AlN)/boron nitride (BN) bishell hollow nanofibers (HNFs) have been fabricated by successive atomic layer deposition (ALD) of AlN and sequential chemical vapor deposition (CVD) of BN on electrospun polymeric nanofibrous template. A four-step fabrication process was utilized: (i) fabrication of polymeric (nylon 6,6) nanofibers via electrospinning, (ii) hollow cathode plasma-assisted ALD of AlN at 100?C onto electrospun polymeric nanofibers, (iii) calcination at 500?C for 2 h in order to remove the polymeric template, and (iv) sequential CVD growth of BN at 450?C. AlN/BN HNFs have been characterized for their chemical composition, surface morphology, crystal structure, and internal nanostructure using X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, and selected area electron diffraction. Measurements confirmed the presence of crystalline hexagonal BN and AlN within the three dimensional (3D) network of bishell HNFs with relatively low impurity content. In contrast to the smooth surface of the inner AlN layer, outer BN coating showed a highly rough 3D morphology in the form of BN nano-needle crystallites. It is shown that the combination of electrospinning and plasma-assisted low-temperature ALD/CVD can produce highly controlled multi-layered bishell nitride ceramic hollow nanostructures. While electrospinning enables easy fabrication of nanofibrous template, self-limiting reactions of plasma-assisted ALD and sequential CVD provide control over the wall thicknesses of AlN and BN layers with sub-nanometer accuracy.

  13. Synthesis and Applications of Double-Gyroid-Structured Functional Materials

    E-Print Network [OSTI]

    Scherer, Maik

    2014-05-27T23:59:59.000Z

    . . . . . . . . . . . . . . . . . 178 8.3.5 ALD of zinc oxide . . . . . . . . . . . . . . . . . . . . . . . . . . 184 8.3.6 Dye-sensitized solar cells . . . . . . . . . . . . . . . . . . . . . . 185 8.4 Concluding remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185... film template has been demonstrated in dye-sensitized solar cells.[3] In contrast to this earlier example, a functional thin film device based on the double- gyroid morphology that out-performs existing technologies has yet to be demonstrated. 5...

  14. Synthesis of Pt?Pd Core?Shell Nanostructures by Atomic Layer Deposition: Application in Propane Oxidative Dehydrogenation to Propylene

    SciTech Connect (OSTI)

    Lei, Y.; Liu, Bin; Lu, Junling; Lobo-Lapidus, Rodrigo J.; Wu, Tianpin; Feng, Hao; Xia, Xiaoxing; Mane, Anil U.; Libera, Joseph A.; Greeley, Jeffrey P.; Miller, Jeffrey T.; Elam, J. W.

    2012-08-20T23:59:59.000Z

    Atomic layer deposition (ALD) was employed to synthesize supported Pt?Pd bimetallic particles in the 1 to 2 nm range. The metal loading and composition of the supported Pt?Pd nanoparticles were controlled by varying the deposition temperature and by applying ALD metal oxide coatings to modify the support surface chemistry. Highresolution scanning transmission electron microscopy images showed monodispersed Pt?Pd nanoparticles on ALD Al2O3 - and TiO2 -modi?ed SiO2 gel. X-ray absorption spectroscopy revealed that the bimetallic nanoparticles have a stable Pt-core, Pd-shell nanostructure. Density functional theory calculations revealed that the most stable surface con?guration for the Pt? Pd alloys in an H2 environment has a Pt-core, Pd-shell nanostructure. In comparison to their monometallic counterparts, the small Pt?Pd bimetallic core?shell nanoparticles exhibited higher activity in propane oxidative dehydrogenation as compared to their physical mixture.

  15. Bump formation in the runaway electron tail

    E-Print Network [OSTI]

    Decker, J; Flp, T

    2015-01-01T23:59:59.000Z

    Runaway electrons are generated in a magnetized plasma when the parallel electric field exceeds a critical value. For such electrons with energies typically reaching tens of MeV, the Abraham-Lorentz-Dirac (ALD) radiation force, in reaction to the synchrotron emission, is significant and can be the dominant process limiting the electron acceleration. The effect of the ALD-force on runaway electron dynamics in a homogeneous plasma is investigated using the relativistic finite-difference Fokker-Planck codes LUKE [Decker & Peysson, Report EUR-CEA-FC-1736, Euratom-CEA, (2004)] and CODE [Landreman et al, Comp. Phys. Comm. 185, 847 (2014)]. Under the action of the ALD force, we find that a bump is formed in the tail of the electron distribution function if the electric field is sufficiently large. We also observe that the energy of runaway electrons in the bump increases with the electric field amplitude, while the population increases with the bulk electron temperature. The presence of the bump divides the elec...

  16. Aluminium Electroplating on Steel from a Fused Bromide Electrolyte

    SciTech Connect (OSTI)

    Prabhat Tripathy; Laura Wurth; Eric Dufek; Toni Y. Gutknecht; Natalie Gese; Paula Hahn; Steven Frank; Guy Fredrickson; J Stephen Herring

    2014-08-01T23:59:59.000Z

    A quaternary bromide bath (LiBr-KBr-CsBr-AlBr3) was used to electro-coat aluminium on steel substrates. The electrolyte was prepared by the addition of AlBr3 into the eutectic LiBr-KBr-CsBr melt. A smooth, thick, adherent and shiny aluminium coating could be obtained with 80 wt.% AlBr3 in the ternary melt. The SEM photographs of the coated surfaces suggest the formation of thick and dense coatings with good aluminium coverage. Both salt immersion and open circuit potential measurement suggest that the coatings did display good corrosion-resistance behavior. Annealing of the coated surfaces, prior to corrosion tests, suggested the robustness of the metallic aluminium coating in preventing the corrosion of the steel surfaces. Studies also indicated that the quaternary bromide plating bath can potentially provide a better aluminium coating on both ferrous and non-ferrous metals, including complex surfaces/geometries.

  17. A Second-Site Noncomplementation Screen for Modifiers of Rho1 Signaling during Imaginal Disc Morpogenesis in Drosophila

    E-Print Network [OSTI]

    Patch, Kistie; Stewart, Shannon; Welch, Aaron; Ward, Robert

    2009-10-23T23:59:59.000Z

    +/+ RhoGEF2 11-3b 21 31 (239) 25 75 (61) Rho1 E3.10 +/+ RhoGEF2 11-3b 21 20 (143) 25 20 (30) Rho1 k02107b +/+ RhoGEF2 11-3b 21 80 (5) 25 100 (9) Rho1 J3.8 +/+ RhoGEF2 11-3b 21 55 (62) 25 91 (22) Rho1 E(br)246 +/+ zip E(br) 21 50 (82) 25 66 (44) Rho1 E...(br)233 +/+ zip E(br) 21 20 (102) 25 66 (29) Rho1 E3.10 +/+ zip E(br) 21 ND 25 33 (12) Rho1 k02107b +/+ zip E(br) 21 ND 25 ND Rho1 J3.8 +/+ zip E(br) 21 95 (20) 25 97 (30) a Balanced, Rho heterozygous mutant virgin females were crossed to either w 1118...

  18. Atomic layer deposited lithium aluminum oxide: (In)dependency of film properties from pulsing sequence

    SciTech Connect (OSTI)

    Miikkulainen, Ville, E-mail: ville.miikkulainen@helsinki.fi; Nilsen, Ola; Fjellvg, Helmer [Centre for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, P.O. Box 1126 Blindern, NO-0318 Oslo (Norway); Li, Han; King, Sean W. [Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, Oregon 97124 (United States); Laitinen, Mikko; Sajavaara, Timo [Department of Physics, University of Jyvskyl, P.O. Box 35, FI-40014 Jyvskyl (Finland)

    2015-01-01T23:59:59.000Z

    Atomic layer deposition (ALD) holds markedly high potential of becoming the enabling method for achieving the three-dimensional all-solid-state thin-film lithium ion battery (LiB). One of the most crucial components in such a battery is the electrolyte that needs to hold both low electronic conductivity and at least fair lithium ion conductivity being at the same time pinhole free. To obtain these desired properties in an electrolyte film, one necessarily has to have a good control over the elemental composition of the deposited material. The present study reports on the properties of ALD lithium aluminum oxide (Li{sub x}Al{sub y}O{sub z}) thin films. In addition to LiB electrolyte applications, Li{sub x}Al{sub y}O{sub z} is also a candidate low dielectric constant (low-k) etch stop and diffusion barrier material in nanoelectronics applications. The Li{sub x}Al{sub y}O{sub z} films were deposited employing trimethylaluminum-O{sub 3} and lithium tert-butoxide-H{sub 2}O for Al{sub 2}O{sub 3} and Li{sub 2}O/LiOH, respectively. The composition was aimed to be controlled by varying the pulsing ratio of those two binary oxide ALD cycles. The films were characterized by several methods for composition, crystallinity and phase, electrical properties, hardness, porosity, and chemical environment. Regardless of the applied pulsing ratio of Al{sub 2}O{sub 3} and Li{sub 2}O/LiOH, all the studied ALD Li{sub x}Al{sub y}O{sub z} films of 200 and 400 nm in thickness were polycrystalline in the orthorhombic ?-LiAlO{sub 2} phase and also very similar to each other with respect to composition and other studied properties. The results are discussed in the context of both fundamental ALD chemistry and applicability of the films as thin-film LiB electrolytes and low-k etch stop and diffusion barriers.

  19. Energy Technology Division research summary 1997.

    SciTech Connect (OSTI)

    NONE

    1997-10-21T23:59:59.000Z

    The Energy Technology Division provides materials and engineering technology support to a wide range of programs important to the US Department of Energy. As shown on the preceding page, the Division is organized into ten sections, five with concentrations in the materials area and five in engineering technology. Materials expertise includes fabrication, mechanical properties, corrosion, friction and lubrication, and irradiation effects. Our major engineering strengths are in heat and mass flow, sensors and instrumentation, nondestructive testing, transportation, and electromechanics and superconductivity applications. The Division Safety Coordinator, Environmental Compliance Officers, Quality Assurance Representative, Financial Administrator, and Communication Coordinator report directly to the Division Director. The Division Director is personally responsible for cultural diversity and is a member of the Laboratory-wide Cultural Diversity Advisory Committee. The Division's capabilities are generally applied to issues associated with energy production, transportation, utilization or conservation, or with environmental issues linked to energy. As shown in the organization chart on the next page, the Division reports administratively to the Associate Laboratory Director (ALD) for Energy and Environmental Science and Technology (EEST) through the General Manager for Environmental and Industrial Technologies. While most of our programs are under the purview of the EEST ALD, we also have had programs funded under every one of the ALDs. Some of our research in superconductivity is funded through the Physical Research Program ALD. We also continue to work on a number of nuclear-energy-related programs under the ALD for Engineering Research. Detailed descriptions of our programs on a section-by-section basis are provided in the remainder of this book. This Overview highlights some major trends. Research related to the operational safety of commercial light water nuclear reactors (LWRS) is funded by the US Nuclear Regulatory Commission (NRC). In addition to our ongoing work on environmentally assisted cracking and steam generator integrity, a major new multiyear program has been initiated to assess the performance of high-burnup fuel during loss-of-coolant accidents. The bulk of the NRC research work is carried out in four ET sections: Corrosion: Mechanics of Materials; Irradiation Performance: and Sensors, Instrumentation, and Nondestructive Evaluation. The Transportation of Hazardous Materials Section is the other main contributor; staff from that Section have worked closely with NRC staff to draft a new version of the NRC Standard Review Plan that will be used to provide guidance to NRC reviewers of applications for the renewal of nuclear plant licenses.

  20. The mass transfer and kinetics for zinc deposition from bromide media

    E-Print Network [OSTI]

    Edmund, Mark Alan

    1980-01-01T23:59:59.000Z

    accumulation. Cycle life was 170 cycles; failure was caused by Brz attack on the graphite current collectors. Work has also been done to reduce self-discharge of Zn/Brz batteries by altering the energy storage chemistry. The emphasis is on complexing...- scribe the limiting current density as a function of rotational speed. The results can be seen in Figures 7 and 8 and Table 1. These results 32 I20 0. 0200 M ZnBr&, I. O M NaBr 0. 050l M ZnBr&, I. O M NaBr 0. 050I M ZnBr 2, 2. 0M NaBr tr 0. 050l M...

  1. Electrochemical investigation of polyhalide ion oxidation-reduction on carbon nanotube electrodes for redox flow batteries

    SciTech Connect (OSTI)

    Shao, Yuyan; Engelhard, Mark H.; Lin, Yuehe

    2009-10-01T23:59:59.000Z

    Polyhalide ions (Br-/BrCl2-) are an important redox couple for redox flow batteries. The oxidation-reduction behavior of polyhalide ions on a carbon nanotube (CNT) electrode has been investigated with cyclic voltammetry and electrochemical impedance spectroscopy. The onset oxidation potential of Br-/BrCl2- is negatively shifted by >100 mV, and the redox current peaks are greatly enhanced on a CNT electrode compared with that on the most widely-used graphite electrode. The reaction resistance of the redox couple (Br-/BrCl2-) is decreased on a CNT electrode. The redox reversibility is increased on a CNT electrode even though it still needs further improvement. CNT is a promising electrode material for redox flow batteries.

  2. haRVey: satisfaisabilite et theories Diego Caminha B. de Oliveira (Univ. Rio Grande do Norte, Bresil)

    E-Print Network [OSTI]

    Fontaine, Pascal

    haRVey: satisfaisabilit´e et th´eories Diego Caminha B. de Oliveira (Univ. Rio Grande do Norte, Br´esil) David D´eharbe (Univ. Rio Grande do Norte, Br´esil), Pascal Fontaine (LORIA ­ Universit´e de Nancy) Univ. Rio Grande do Norte, Br´esil / LORIA ­ Universit´e de Nancy Le probl`eme de la satisfaisabilit´e de

  3. acidic conjugate cleavage: Topics by E-print Network

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

    and Studies on Persistent Intramolecular CHX (X O, S, Br, Cl, and F) Hydrogen Bonds Involving Benzyl Meldrums Acids. Open Access Theses and Dissertations...

  4. Diffusion MRI Methods for Improved Treatment Monitoring in Breast Cancer

    E-Print Network [OSTI]

    Aliu, Sheye

    2009-01-01T23:59:59.000Z

    2.9 Breast Cancer Treatment . . . . . . . 2.9.1. Localassessing antivascular cancer treatments. Br J Radiol, 2003.imaging, for breast cancer treatment monitoring. To achieve

  5. Optimization Online - A stabilized model and an efficient solution ...

    E-Print Network [OSTI]

    Vincent Guigues

    2011-02-24T23:59:59.000Z

    Feb 24, 2011 ... A stabilized model and an efficient solution method for the yearly optimal power management. Vincent Guigues(vguigues ***at*** puc-rio.br).

  6. A Joint Photoelectron Spectroscopy and Theoretical Study on the...

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

    of UCl5? and UCl5. We also performed systematic theoretical studies on all the uranium pentahalide complexes UX5? (XF, Cl, Br, I). Chemical bonding analyses...

  7. Neural Networks in 3D medical scan visualization Dzenan Zuki, Dipl. Ing., dzenanz@gmail.com

    E-Print Network [OSTI]

    Blanz, Volker

    II br. 52, 71322 Vogosa, Bosnia and Herzegovina University of Sarajevo / Faculty of Electrical, Zmaja od Bosne bb - Kampus, 71000 Sarajevo, Bosnia and Herzegovina University of Sarajevo / Electrical

  8. Integrating Solar PV in Utility System Operations

    E-Print Network [OSTI]

    Mills, A.

    2014-01-01T23:59:59.000Z

    Laboratory National Renewable Energy Laboratory Universityof Energy Efficiency and Renewable Energy (Solar EnergySystem Operations Table 27. Renewable Curtailment in the BR

  9. A note on complexity of multistage stochastic programs

    E-Print Network [OSTI]

    Marcus de Mendes C. R. Reaiche

    2014-11-20T23:59:59.000Z

    Nov 20, 2014 ... A note on complexity of multistage stochastic programs. Marcus de Mendes C. R. Reaiche(mmcr ***at*** impa.br). Abstract: In Shapiro [2006],...

  10. FACHBEREICH GERMANY WWW

    E-Print Network [OSTI]

    Kerber, Manfred

    UNIVERSIT AT DES SAARLANDES FACHBEREICH INFORMATIK D66041 SAARBR UCKEN GERMANY WWW: http, Universit at des Saarlandes, Saar br ucken, Germany #12; Planverfahren -- Skript zur Vorlesung

  11. Collecting Occupant Presence Data for Use in Energy Management of Commercial Buildings

    E-Print Network [OSTI]

    Rosenblum, Benjamin Tarr

    2012-01-01T23:59:59.000Z

    ed. The Fairmont Press, Inc. EPRI. 1994. Occupancy sensors:Institute, Palo Alto, CA. EPRI BR-100323. Ekahau. Real TimePower Research Institute (EPRI) identified approximately 30%

  12. Facolt di Architettura e Societ anno accademico 2012/2013 Attenzione! Controllare i corsi di laurea di riferimento

    E-Print Network [OSTI]

    Bahia (architettura specialistica) www.portal.ufba.br Dorigati 3 Universidade Federal de Santa (architettura specialistica) www.itesm.mx Molon 4 RUSSIA Moscow Institute of Architecture (architettura

  13. Summary for Policymakers IPCC Fourth Assessment Report, Working Group III

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    those on climate change, energy security 8 , and sustainablebromide (CH 3 Br). Energy security refers to security ofhealth, such as increased energy security, and increased

  14. Software for Numerical Methods for Partial Differential Equations

    E-Print Network [OSTI]

    (CG-build-data triangulation space); (CG-add-operator-and-rhs-information! .... acronym; address; applet; area; b; base; basefont; bdo; big; blockquote; body; br

  15. Working Fluids Low Global Warming Potential Refrigerants | Department...

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

    Research & Integration Center. Life Cycle Climate Performance of supermarket refrigeration.<br > Credit: Oak Ridge National Lab Life Cycle Climate Performance of...

  16. assumed breakout scenario: Topics by E-print Network

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

    shock br... Couch, Sean M; Wheeler, J Craig; Milosavljevic, Milos 2010-01-01 4 Gaseous Hydrogen Delivery Breakout Renewable Energy Websites Summary: detection Pipeline Safety:...

  17. actively cooled resonators: Topics by E-print Network

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

    effect H2OLiBr absorption cooling cycles, Applied Thermalabsorption chillers5, 6, 7, adsorption chillers 8, and open cooling cyclesabsorption chiller works by using thermal...

  18. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 378/2013 HOSPITAL

  19. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 331/2014 HOSPITAL

  20. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. HOSPITAL UNIVERSITÁRIO DE

  1. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 305/2014 HOSPITAL

  2. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 371/2013 HOSPITAL

  3. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 333/2013 HOSPITAL

  4. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 359/2013 HOSPITAL

  5. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº.368/2013 HOSPITAL

  6. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 341/2013 HOSPITAL

  7. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 392/2013 HOSPITAL

  8. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 348/2013 HOSPITAL

  9. CPL -COMISSO PERMANENTE DE LICITAO Hospital universitrio de Braslia -SGAN Quadras 604/604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail

    E-Print Network [OSTI]

    Maier, Rudolf Richard

    /604, Asa Norte, CEP: 70840901 telefone (61)34485344, e-mail hubcpl@bol.com.br. Pregão Nº. 372/2013 HOSPITAL

  10. Sodium bromide electron-extraction layers for polymer bulk-heterojunction solar cells

    SciTech Connect (OSTI)

    Gao, Zhi; Qu, Bo, E-mail: bqu@pku.edu.cn; Xiao, Lixin; Chen, Zhijian [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China) [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China); New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait, Fuzhou 350002 (China); Zhang, Lipei [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China)] [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China); Gong, Qihuang [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China) [State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China); Collaborative Innovation Center of Quantum Matter, Beijing 100871 (China)

    2014-03-10T23:59:59.000Z

    Inexpensive and non-toxic sodium bromide (NaBr) was introduced into polymer solar cells (PSCs) as the cathode buffer layer (CBL) and the electron extraction characteristics of the NaBr CBL were investigated in detail. The PSCs based on NaBr CBL with different thicknesses (i.e., 0?nm, 0.5?nm, 1?nm, and 1.5?nm) were prepared and studied. The optimal thickness of NaBr was 1?nm according to the photovoltaic data of PSCs. The open-circuit voltage (V{sub oc}), short-circuit current density (J{sub sc}), fill factor (FF), and power conversion efficiency (PCE) of the PSC with 1?nm NaBr were evaluated to be 0.58?V, 7.36?mA/cm{sup 2}, 0.63, and 2.70%, respectively, which were comparable to those of the reference device with the commonly used LiF. The optimized photovoltaic performance of PSC with 1?nm NaBr was ascribed to the improved electron transport and extraction capability of 1?nm NaBr in PSCs. In addition, the NaBr CBL could prevent the diffusion of oxygen and water vapor into the active layer and prolong the lifetime of the devices to some extent. Therefore, NaBr layer could be considered as a promising non-toxic CBL for PSCs in future.

  11. THE DEFINITION OF ENGINEERING DEVELOPMENT AND RESEARCH PROBLEMS RELATING TO THE USE OF GEOTHERMAL FLUIDS FOR ELECTRIC POWER GENERATION AND NONELECTRIC HEATING

    E-Print Network [OSTI]

    Apps, J.A.

    2011-01-01T23:59:59.000Z

    emissions might be a Removal of H2S by catalytic oxidationremoval from br i nes Noncondensable gas remova from condensers H2S

  12. A Nonmonotone Approach without Differentiability Test for Gradient ...

    E-Print Network [OSTI]

    Elias S. Helou

    2015-03-18T23:59:59.000Z

    Mar 18, 2015 ... A Nonmonotone Approach without Differentiability Test for Gradient Sampling Methods. Elias S. Helou(elias ***at*** icmc.usp.br) Sandra A.

  13. FISHING INDUSTRY OF THE GULF OF ADEN

    E-Print Network [OSTI]

    Advisor t o the Br itish Secret ary of State ,the best fishing gr ounds s eem t o ? e of f t he har b r

  14. Resolving multi-exciton generation by attosecond spectroscopy

    E-Print Network [OSTI]

    Neumark, Daniel M.

    dots," ACS Nano 2, 833­840 (2008). 10. B.-R. Hyun, Y.-W. Zhong, A. C. Bartnik, L. Sun, H. D. Abruna, F

  15. Controlling X-rays With Light

    E-Print Network [OSTI]

    Glover, Ernie

    2010-01-01T23:59:59.000Z

    Author Contributions TEG, MPH, AB, SHS, LY contributed todesign of the experiment. TEG, MPH, BR were responsible forcontrol laser performance. TEG, MPH, SHS, TKA, JVT, EPK, BK,

  16. Optimization Online - A cone-continuity constraint qualification and ...

    E-Print Network [OSTI]

    Roberto Andreani

    2015-02-13T23:59:59.000Z

    Feb 13, 2015 ... A cone-continuity constraint qualification and algorithmic consequences. Roberto Andreani(andreani ***at*** ime.unicamp.br) Jose Mario...

  17. Universidade Federal de Santa Catarina-Campus Joinville Centro de Engenharia da Mobilidade

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    .petemb.ufsc.br BoletimInformativo Editorial Com o objetivo de potencializar a aprendizagem e o aperfeiçoamento contínuo

  18. CX-001197: Categorical Exclusion Determination | Department of...

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

    Determination CX-001197: Categorical Exclusion Determination Geothermal Heat Pump System for New Student Housing at University at Albany<br>CX(s) Applied:...

  19. Familial necrobiosis lipoidica not associated with diabetes

    E-Print Network [OSTI]

    Roche-Gamn, Elena; Vilata-Corell, Juan J; Velasco-Pastor, Manuel

    2007-01-01T23:59:59.000Z

    complications without manifest diabetes. JAMA 1963;183:926-Necrobiosis lipoidica without diabetes mellitus (diagnostica minority of patients have diabetes mellitus. Br J Dermatol

  20. New Benchmark Instances for the Capacitated Vehicle Routing ...

    E-Print Network [OSTI]

    Eduardo Uchoa

    2014-10-14T23:59:59.000Z

    Oct 14, 2014 ... New Benchmark Instances for the Capacitated Vehicle Routing Problem. Eduardo Uchoa (uchoa ***at*** producao.uff.br) Diego Pecin...

  1. assinaturas temporais ndvi: Topics by E-print Network

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

    Websites Summary: .vieira@ufv.br Abstract. Environmental impacts related to sugarcane crop cultivation are becoming a worldwide issue due to the great potential that ethanol...

  2. Advanced Heat/Mass Exchanger Technology for Geothermal and solar...

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

    More Documents & Publications Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP Applications, April 2005 CX-003216: Categorical Exclusion Determination...

  3. Roll-to-roll atomic layer deposition process for flexible electronics encapsulation applications

    SciTech Connect (OSTI)

    Maydannik, Philipp S., E-mail: philipp.maydannik@lut.fi; Kriinen, Tommi O.; Lahtinen, Kimmo; Cameron, David C. [Advanced Surface Technology Research Laboratory, Lappeenranta University of Technology, Sammonkatu 12, 50130 Mikkeli (Finland); Sderlund, Mikko; Soininen, Pekka [Beneq Oy, P.O. Box 262, 01511 Vantaa (Finland); Johansson, Petri; Kuusipalo, Jurkka [Tampere University of Technology, Paper Converting and Packaging Technology, P.O. Box 589, 33101 Tampere (Finland); Moro, Lorenza; Zeng, Xianghui [Samsung Cheil Industries, San Jose R and D Center, 2186 Bering Drive, San Jose, California 95131 (United States)

    2014-09-01T23:59:59.000Z

    At present flexible electronic devices are under extensive development and, among them, flexible organic light-emitting diode displays are the closest to a large market deployment. One of the remaining unsolved challenges is high throughput production of impermeable flexible transparent barrier layers that protect sensitive light-emitting materials against ambient moisture. The present studies deal with the adaptation of the atomic layer deposition (ALD) process to high-throughput roll-to-roll production using the spatial ALD concept. We report the development of such a process for the deposition of 20?nm thickness Al{sub 2}O{sub 3} diffusion barrier layers on 500?mm wide polymer webs. The process uses trimethylaluminum and water as precursors at a substrate temperature of 105?C. The observation of self-limiting film growth behavior and uniformity of thickness confirms the ALD growth mechanism. Water vapor transmission rates for 20?nm Al{sub 2}O{sub 3} films deposited on polyethylene naphthalate (PEN) substrates were measured as a function of substrate residence time, that is, time of exposure of the substrate to one precursor zone. Moisture permeation levels measured at 38?C/90% relative humidity by coulometric isostaticisobaric method were below the detection limit of the instrument (<5??10{sup ?4}?g/m{sup 2} day) for films coated at web moving speed of 0.25?m/min. Measurements using the Ca test indicated water vapor transmission rates ?5??10{sup ?6} g/m{sup 2} day. Optical measurements on the coated web showed minimum transmission of 80% in the visible range that is the same as the original PEN substrate.

  4. Atomic and molecular layer deposition for surface modification

    SciTech Connect (OSTI)

    Vh-Nissi, Mika, E-mail: mika.vaha-nissi@vtt.fi [VTT Technical Research Centre of Finland, PO Box 1000, FI?02044 VTT (Finland); Sievnen, Jenni; Salo, Erkki; Heikkil, Pirjo; Kentt, Eija [VTT Technical Research Centre of Finland, PO Box 1000, FI?02044 VTT (Finland); Johansson, Leena-Sisko, E-mail: leena-sisko.johansson@aalto.fi [Aalto University, School of Chemical Technology, Department of Forest Products Technology, PO Box 16100, FI?00076 AALTO (Finland); Koskinen, Jorma T.; Harlin, Ali [VTT Technical Research Centre of Finland, PO Box 1000, FI?02044 VTT (Finland)

    2014-06-01T23:59:59.000Z

    Atomic and molecular layer deposition (ALD and MLD, respectively) techniques are based on repeated cycles of gassolid surface reactions. A partial monolayer of atoms or molecules is deposited to the surface during a single deposition cycle, enabling tailored film composition in principle down to molecular resolution on ideal surfaces. Typically ALD/MLD has been used for applications where uniform and pinhole free thin film is a necessity even on 3D surfaces. However, thin even non-uniform atomic and molecular deposited layers can also be used to tailor the surface characteristics of different non-ideal substrates. For example, print quality of inkjet printing on polymer films and penetration of water into porous nonwovens can be adjusted with low-temperature deposited metal oxide. In addition, adhesion of extrusion coated biopolymer to inorganic oxides can be improved with a hybrid layer based on lactic acid. - Graphical abstract: Print quality of a polylactide film surface modified with atomic layer deposition prior to inkjet printing (360 dpi) with an aqueous ink. Number of printed dots illustrated as a function of 0, 5, 15 and 25 deposition cycles of trimethylaluminum and water. - Highlights: ALD/MLD can be used to adjust surface characteristics of films and fiber materials. Hydrophobicity after few deposition cycles of Al{sub 2}O{sub 3} due to e.g. complex formation. Same effect on cellulosic fabrics observed with low temperature deposited TiO{sub 2}. Different film growth and oxidation potential with different precursors. Hybrid layer on inorganic layer can be used to improve adhesion of polymer melt.

  5. Carbon monoxide alleviates ethanol-induced oxidative damage and inflammatory stress through activating p38 MAPK pathway

    SciTech Connect (OSTI)

    Li, Yanyan; Gao, Chao; Shi, Yanru; Tang, Yuhan; Liu, Liang; Xiong, Ting; Du, Min [Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Ministry of Education Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Xing, Mingyou [Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Liu, Liegang [Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Ministry of Education Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Yao, Ping, E-mail: yaoping@mails.tjmu.edu.cn [Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Ministry of Education Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China); Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030 (China)

    2013-11-15T23:59:59.000Z

    Stress-inducible protein heme oxygenase-1(HO-1) is well-appreciative to counteract oxidative damage and inflammatory stress involving the pathogenesis of alcoholic liver diseases (ALD). The potential role and signaling pathways of HO-1 metabolite carbon monoxide (CO), however, still remained unclear. To explore the precise mechanisms, ethanol-dosed adult male Balb/c mice (5.0 g/kg.bw.) or ethanol-incubated primary rat hepatocytes (100 mmol/L) were pretreated by tricarbonyldichlororuthenium (II) dimmer (CORM-2, 8 mg/kg for mice or 20 ?mol/L for hepatocytes), as well as other pharmacological reagents. Our data showed that CO released from HO-1 induction by quercetin prevented ethanol-derived oxidative injury, which was abolished by CO scavenger hemoglobin. The protection was mimicked by CORM-2 with the attenuation of GSH depletion, SOD inactivation, MDA overproduction, and the leakage of AST, ALT or LDH in serum and culture medium induced by ethanol. Moreover, CORM-2 injection or incubation stimulated p38 phosphorylation and suppressed abnormal Tnfa and IL-6, accompanying the alleviation of redox imbalance induced by ethanol and aggravated by inflammatory factors. The protective role of CORM-2 was abolished by SB203580 (p38 inhibitor) but not by PD98059 (ERK inhibitor) or SP600125 (JNK inhibitor). Thus, HO-1 released CO prevented ethanol-elicited hepatic oxidative damage and inflammatory stress through activating p38 MAPK pathway, suggesting a potential therapeutic role of gaseous signal molecule on ALD induced by naturally occurring phytochemicals. - Highlights: CO alleviated ethanol-derived liver oxidative and inflammatory stress in mice. CO eased ethanol and inflammatory factor-induced oxidative damage in hepatocytes. The p38 MAPK is a key signaling mechanism for the protective function of CO in ALD.

  6. High-reliability passivation of hydrogen-terminated diamond surface by atomic layer deposition of Al{sub 2}O{sub 3}

    SciTech Connect (OSTI)

    Daicho, Akira, E-mail: notevayas-tales@ruri.waseda.jp; Saito, Tatsuya; Kurihara, Shinichiro; Kawarada, Hiroshi, E-mail: kawarada@waseda.jp [School of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555 (Japan); Hiraiwa, Atsushi [Institute for Nanoscience and Nanotechnology, Waseda University, 513 Waseda-tsurumaki, Shinjuku, Tokyo 162-0041 (Japan)

    2014-06-14T23:59:59.000Z

    Although the two-dimensional hole gas (2DHG) of a hydrogen-terminated diamond surface provides a unique p-type conducting layer for high-performance transistors, the conductivity is highly sensitive to its environment. Therefore, the surface must be passivated to preserve the 2DHG, especially at high temperature. We passivated the surface at high temperature (450?C) without the loss of C-H surface bonds by atomic layer deposition (ALD) and investigated the thermal reliability of the Al{sub 2}O{sub 3} film. As a result, C-H bonds were preserved, and the hole accumulation effect appeared after the Al{sub 2}O{sub 3} deposition by ALD with H{sub 2}O as an oxidant. The sheet resistivity and hole density were almost constant between room temperature and 500?C by the passivation with thick Al{sub 2}O{sub 3} film thicker than 38?nm deposited by ALD at 450?C. After the annealing at 550?C in air The sheet resistivity and hole density were preserved. These results indicate the possibility of high-temperature application of the C-H surface diamond device in air. In the case of lower deposition temperatures, the sheet resistivity increased after air annealing, suggesting an insufficient protection capability of these films. Given the result of sheet resistivity after annealing, the increase in the sheet resistivity of these samples was not greatly significant. However, bubble like patterns were observed in the Al{sub 2}O{sub 3} films formed from 200 to 400?C by air annealing at 550?C for 1 h. On the other hand, the patterns were no longer observed at 450?C deposition. Thus, this 450?C deposition is the sole solution to enabling power device application, which requires high reliability at high temperatures.

  7. CO-CATALYTIC ABSORPTION LAYERS FOR CONTROLLED LASER-INDUCED CHEMICAL VAPOR DEPOSITION OF CARBON NANOTUBES

    E-Print Network [OSTI]

    Michaelis, F.B.; Weatherup, R.S.; Bayer, B.C.; Bock, M.C.D; Sugime, H.; Caneva, S.; Robertson, J.; Baumberg, J.J.; Hofmann, S.

    2014-02-24T23:59:59.000Z

    ,38 by atomic layer deposition (ALD) using a Cambridge Nanotech Savannah system and a 200C process with tri[methyl]aluminium and water both carried in a N2(20 sccm) flow for 200 cycles 39,40. Ta layers are sputter deposited (100W, 35sccm Ar, 3.510-3 mbar... it is optically compensated). Thermal CVD. CNT growth is also carried out in a custom-built cold-wall CVD chamber with a resistive graphite heater element. Samples are heated to ~670C and annealed for 5 min in a non-reducing (~10-3 mbar vacuum) or reducing...

  8. Accelerated deployment of nanostructured hydrotreating catalysts. Final CRADA Report.

    SciTech Connect (OSTI)

    Libera, J.A.; Snyder, S.W.; Mane, A.; Elam, J.W.; Cronauer, D.C.; Muntean, J.A.; Wu, T.; Miller, J.T. (Chemical Sciences and Engineering Division); ( ES)

    2012-08-27T23:59:59.000Z

    Nanomanufacturing offers an opportunity to create domestic jobs and facilitate economic growth. In response to this need, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy issued a Research Call to develop nanomanufacturing capabilities at the National Laboratories. High performance catalysts represent a unique opportunity to deploy nanomanufacturing technologies. Re-refining of used lube oil offers an opportunity to create manufacturing jobs and decrease dependence on imported petroleum. Improved catalysts are required to produce a better quality product, decrease environmental impact, extend catalyst life, and improve overall economics of lube oil re-refining. Argonne National Laboratory (Argonne) in cooperation with Universal Lubricants, Inc. (ULI) and Chemical Engineering Partners (CEP) have carried out a Cooperative Research and Development Agreement (CRADA) to prepare nanostructured hydrotreating catalysts using atomic layer deposition (ALD) to exhibit superior performance for the re-refining of used lube oil. We investigated the upgrading of recycled lube oil by hydrogenation using commercial, synthetically-modified commercial catalysts, and synthesized catalysts. A down-flow (trickle bed) catalytic unit was used for the hydrogenation experiments. In addition to carrying out elemental analyses of the various feed and product fractions, characterization was undertaken using H{sup 1} and C{sup 13} NMR. Initially commercial were evaluated. Second these commercial catalysts were promoted with precious metals using atomic layer deposition (ALD). Performance improvements were observed that declined with catalyst aging. An alternate approach was undertaken to deeply upgrade ULI product oils. Using a synthesized catalyst, much lower hydrogenation temperatures were required than commercial catalysts. Other performance improvements were also observed. The resulting lube oil fractions were of high purity even at low reaction severity. The products recovered from both the ALD and other processes were water-white (even those from the low temperature, low residence time (high space velocity), low conversion runs). These results indicate that highly upgraded recycle lube oils can be produced using ALD-deposited active metal catalysts. The use of H{sup 1} and C{sup 13} NMR for the characterization of the treated lube oils has been shown to be effective.

  9. Solvent extraction of inorganic acids

    E-Print Network [OSTI]

    Ysrael, Miguel Curie

    1965-01-01T23:59:59.000Z

    Page 10 27 NOi'!: KCL ITU8l: BIBLIOG. :l PI!Y ct:"P. '. t:OI:t 28 30 32 LIDT DF FIGUP, . " Al'!D T?DL. '. I F igure . olubility curve of wat-r and glycerol etl'er s I-'age 4 3 ~ '=quilibrium diagram for amyl alcohol- water-HC1... Correlation of eq;ilibrium da!. a of amyl alcohol-water-HC1 12 13 ~ ~ selectivity diagram for alcohol- 5 ~, '~electivity diagram for ethers G. Mole fr:ction di=tribution diagrav. . 7 ~ Activity coefficient of acids in water 0 ~ "ctivity coefficient...

  10. The influence of an instructional set on the ability to fake on the Kern Assertiveness Test

    E-Print Network [OSTI]

    Karten, Stephen Jay

    1984-01-01T23:59:59.000Z

    appraisal of strategies for assessing social skills. Behavioral Assessment, 1, 157 ? 176. Bellack, A. S. , Hersen, M. , & Lamparski, D. (1979a) Role-play tests for assessing social skills: Are they al'd. 6 e th 7 f l. 3o 1 f c~aolt( a d Cl'h' 1 ~PA 1... meeting of the Association for the Advancement of Behavior Therapy, Philadelphia, PA. Lick, J. R. , & Vnger, T. E. (1975). External validity of laboratory fear assessment: Implications from two * f. d' *. J al f c~lc' d cl' 'cal P~s h 1 , 43, 646...

  11. A computerized student fee system for Texas A&M University

    E-Print Network [OSTI]

    Wood, Lester Seth

    1972-01-01T23:59:59.000Z

    accounts for each student who has a scholarshi. p or contract. The fee summary card is used by the fee update program for recording the payment of fees or for revising a student's fee statement. ~0 eratin~ Procedures (l) Verify all fee rates contained... at A&ld which includes procedures for the collection and recording of student fee data, the calculation of student fees and t' he preparation of fee statements, the updating of student fees and the revision of fee statements, the distribution of fees...

  12. FYI: July 3, 1985 - December 19, 1985

    E-Print Network [OSTI]

    1985-01-01T23:59:59.000Z

    perience in a university environment, preferably at KU; ability to establish bibliographi cal identity of bpth foreign and English language materials; interest in or experience working with historical research materials. Library staff interested... proced{ tr ' e ~ ~ wert? discussed, inclucinu the possibility of chi~rqing th e ~H.'::' E r rpv i e vJ cDflliTlitt.ee with writi' "lq procedures to be recornnlended. It was agreed that tt,e ballot st,otAld tJe issued in tt,e version agreed upon...

  13. Gradient limits and SCRF performance.

    SciTech Connect (OSTI)

    Norem, J.; Pellin, M.

    2007-01-01T23:59:59.000Z

    Superconducting rf gradients are limited by a number of mechanisms, among them are field emission, multipactor, Lorentz detuning, global and local heating, quench fields, Q-Slope, assembly defects, and overall power use. We describe how each of these mechanisms interacts with the cavity fields and show how significant improvements may be possible assuming improvements in control over the cavity surface. New techniques such as Atomic Layer Deposition (ALD), the use of layered composites, Gas Cluster Ion Beam (GCIB) smoothing and Dry Ice Cleaning (DIC) have been proposed as ways to control the surface.

  14. Methods for simultaneous control of lignin content and composition, and cellulose content in plants

    DOE Patents [OSTI]

    Chiang, Vincent Lee C.; Li, Laigeng

    2005-02-15T23:59:59.000Z

    The present invention relates to a method of concurrently introducing multiple genes into plants and trees is provided. The method includes simultaneous transformation of plants with multiple genes from the phenylpropanoid pathways including 4CL, CAld5H, AldOMT, SAD and CAD genes and combinations thereof to produce various lines of transgenic plants displaying altered agronomic traits. The agronomic traits of the plants are regulated by the orientation of the specific genes and the selected gene combinations, which are incorporated into the plant genome.

  15. Dark Matters Issue 1

    E-Print Network [OSTI]

    @, clocd? I knoB a4n @v Pr* dEcG Th'r eds aslb,n drp Fisc Dncrirc my der I will l.ave K'ald alonc THlt TIMEI AND you c$ ontv guN whe? els! i hidt l Dis&s Tl* Dvs Lrlnlg K'M. ltw fining I id.npr 1h. I.r![ig"lc n lmk ds6i bricfne Wu lolc vd 10. Klmad hav' o...

  16. Biexciton emission from single isoelectronic traps formed by nitrogen-nitrogen pairs in GaAs

    SciTech Connect (OSTI)

    Takamiya, Kengo; Fukushima, Toshiyuki; Yagi, Shuhei; Hijikata, Yasuto; Yaguchi, Hiroyuki [Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku , Saitama 338-8570 (Japan); Mochizuki, Toshimitsu; Yoshita, Masahiro; Akiyama, Hidefumi [Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan); Kuboya, Shigeyuki; Onabe, Kentaro [Department of Advanced Materials Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan); Katayama, Ryuji [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)

    2013-12-04T23:59:59.000Z

    We have studied photoluminescence (PL) from individual isoelectronic traps formed by nitrogen-nitrogen (NN) pairs in GaAs. Sharp emission lines due to exciton and biexciton were observed from individual isoelectronic traps in nitrogen atomic-layer doped (ALD) GaAs. The binding energy of biexciton bound to individual isoelectronic traps was approximately 8 meV. Both the exciton and biexciton luminescence lines show completely random polarization and no fine-structure splitting. These results are desirable to the application to the quantum cryptography used in the field of quantum information technology.

  17. ALDACOR INC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpenALD Vacuum

  18. ALDACOR | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpenALD VacuumALDACOR Jump to:

  19. ALLETE Inc., d/b/a Minnesota Power Smart Grid Project | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpenALD VacuumALDACOR Jump

  20. ALLETE, Inc. (Minnesota) EIA Revenue and Sales - April 2008 | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpenALD VacuumALDACOR

  1. ALLETE, Inc. (Minnesota) EIA Revenue and Sales - August 2008 | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergySulfonate asAEEOpenOpenALD

  2. Solar Implementation Plan for Solar America Cities DRAFT 1.0: September 2007 "DeSn o o , Neal" NDeSn o o @c i. ber keley . c a. us , Alic en Kan dt (E-m ail) , Alic ia Ber t (E-

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Sn o o @c i. ber keley . c a. us , Alic en Kan dt (E-m ail) , Alic ia Ber t (E- m ail) m >, Br uc e Mas t (E-m ail) , "Bur r o ug hs , Tim o thy " , CalBr o o m head(E-m ail)

  3. Studies of block copolypeptide synthesis, self-assembly, and structure-directing ability

    E-Print Network [OSTI]

    Jan, Jeng-Shiung

    2007-04-25T23:59:59.000Z

    (Porosimetry) .............................................................31 2.6. Circular Dichroism (CD) ..............................................................37 III BIOMIMETIC SYNTHESIS OF INORGANIC NANOSPHERES .........40 3... diameter as measured by DLS...................................................................................................55 3.3 Hydrodynamic diameter of AgBr and AgBr/silica core-shell nanospheres measured by DLS...

  4. AQUATIC MICROBIAL ECOLOGY Aquat Microb Ecol

    E-Print Network [OSTI]

    to as bacterial pro- duction (BP). Bacterial respiration (BR) represents the end result of cellular metabolism) is used as an indicator of bacterial metabolism and carbon processing in the analysis of aquatic transects in the Hudson River estuary where there is a gradient in BP and BR along the flow path

  5. Grazing Systems for Yearling Cattle on Tallgrass Prairie Clenton E. Owensby,1

    E-Print Network [OSTI]

    Owensby, Clenton E.

    conducido por 9 an~os, evaluo las ganancias de novillos y la biomasa residual (BR) a mediados de Julio y rotacion dentro del sistema PCOM. El pasto residual y la biomasa total (BR) a mediados de Julio no vario

  6. Printed in the United States of America. Available from National Technical Information Service

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Temperature Data 19 3 Number of References for Corrosion and Heat of Mixing Data 20 4 Number of References of Methanol + Lithium Bromide Vapor Pressure Data 68 11 Comparison of Methanol + LiBr: ZnBr2 (2:1) Vapor-Liquid Equilibrium Data 76 16 Gaps in Crystallization Temperature Data 77 17 Gaps in Corrosion Data 78 18 Gaps

  7. EDITAL 01/2013 CHAMADA DE ARTIGOS

    E-Print Network [OSTI]

    Paran, Universidade Federal do

    -PR Tel.: (41) 3360-5233- www.ser.ufpr.br/politica - E-mail: revistacienciapolitica@gmail.com b) Para no site: www.ser.ufpr.br/politica ou via e- mail: revistacienciapolitica@gmail.com Curitiba, 15 de agosto

  8. A Taxonomy of C-systems WALTER A. CARNIELLI CLE and IFCH, Unicamp, Brazil

    E-Print Network [OSTI]

    Lisboa, Universidade Tcnica de

    1 A Taxonomy of C-systems WALTER A. CARNIELLI CLE and IFCH, Unicamp, Brazil carniell@cle.unicamp.br JOO MARCOS RUG, Ghent, Belgium, and IFCH, Unicamp, Brazil vegetal@cle.unicamp.br Abstract The logics from CNPq / Brazil and from the A. von Humboldt Foundation, and thanks colleagues from the Advanced

  9. A Taxonomy of C-systems WALTER A. CARNIELLI CLE and IFCH, Unicamp, Brazil

    E-Print Network [OSTI]

    Lisboa, Universidade Tcnica de

    15 A Taxonomy of C-systems WALTER A. CARNIELLI CLE and IFCH, Unicamp, Brazil carniell@cle.unicamp.br JOO MARCOS RUG, Ghent, Belgium, and IFCH, Unicamp, Brazil vegetal@cle.unicamp.br Abstract The logics from CNPq / Brazil and from the A. von Humboldt Foundation, and thanks colleagues from the Advanced

  10. Geophysical Research Abstracts, Vol. 9, 06422, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-06422

    E-Print Network [OSTI]

    Brückl, Ewald

    Geophysical Research Abstracts, Vol. 9, 06422, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-06422 © European Geosciences Union 2007 Deep Alpine Valleys - examples of geophysical explorations in Austria E. Brückl (1), J. Brückl (2), W. Chwatal (1), Ch. Ullrich (1,3) (1) Institute of Geodesy and Geophysics

  11. Facial Expression Classification Using RBF AND Back-Propagation Neural Networks R.Q.Feitosa1,2

    E-Print Network [OSTI]

    of Computer Engineering e-mail: [raul, marley]@ele.puc -rio.br, tuler@inf.puc-rio.br, [diogo, sam. The classification system is based on attributes extracted from human faces images using the principal component analysis (PCA) technique. Well-framed images were used in order to simplify the face detection on the image

  12. Multi-bit magnetic memory using Fe8 high spin molecules

    E-Print Network [OSTI]

    Keren, Amit

    16 10 17 10 18 10 19 10 20 QTM Magnetic cores Disk file Magnetic bubble Thin film Optical disk IBM molecule behaves independently. #12;8 [Fe8O2(OH)12(C6H15N3)6]Br7(H2O)Br8H2O Fe8 Molecule Iron Carbon

  13. Safe Method of Use for Hazardous Substances of Higher Risk 16 Version 2 July 2008 Page 1 of 5

    E-Print Network [OSTI]

    Auckland, University of

    Safe Method of Use for Hazardous Substances of Higher Risk 16 Version 2 July 2008 Page 1 of 5 SafeBr depend on the nature of the waste materials and the concentration of EtBr that they contain. Much a choice of protocols, the sodium nitrite method is preferred as the reaction products retain very little

  14. R u t c o r R e p o r t

    E-Print Network [OSTI]

    , Brasil. celina@cos.ufrj.br b LSD2­IMAG, BP 53, 38041 Grenoble Cedex 9, France. Frederic.Maffray@imag.fr c 401, CEP 22453, Rio de Janeiro, RJ, Brasil. oscar@ele.puc­rio.br #12; Rutcor Research Report RRR 45

  15. Ambiente Integrado para Posicionamento em Operac~oes Militares GUSTAVO MOREIRA PIERRE1

    E-Print Network [OSTI]

    Brasil, Rua Magno Martins, Rio de Janeiro, RJ, Brasil gustavopierre@uol.com.br 2 Tecgraf­Pontif´icia Universidade Cat´olica, Rua Marqu^es de S~ao Vicente, 225, 22453-900 - G´avea, Rio de Janeiro, RJ, Brasil, 22460 Rio de Janeiro, RJ, Brasil tron@impa.br Abstract. With technological development, we have been

  16. UNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO DE CINCIAS BIOLGICAS

    E-Print Network [OSTI]

    Floeter, Sergio Ricardo

    - Santa Catarina, Brasil. CEP: 88040-900 Tel: +55 48 37212715 / e-mail: poseco@ccb.ufsc.br Código: ECO3102 estabilidade em ecologia. Desenvolvimento do conceito de ecossistema. Cadeias tróficas. Fluxo de energia - Santa Catarina, Brasil. CEP: 88040-900 Tel: +55 48 37212715 / e-mail: poseco@ccb.ufsc.br Conteúdo

  17. Um Framework para Proviso de QoS em Redes Mveis Sem Fio1

    E-Print Network [OSTI]

    Colcher, Sérgio

    -900, Brasil www.telemidia.puc-rio.br {lslima,atagomes,colcher,lfgs}@inf.puc-rio.br 1 Este trabalho foi restrições no consumo de energia; e a própria mobilidade das estações, que implicará na necessidade do

  18. CHEMISTRY 3331, Fall 1999 Professor Walba

    E-Print Network [OSTI]

    Walba, David

    material given, and you may use any other organic or inorganic reagent you want. a) b) c) d) Br Br CN NBS benzene, any organic starting materials with FIVE carbons or less, and any inorganic reagents you need synthesis efficient (i.e. the desired product should be the major product). You must use the starting

  19. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores

    E-Print Network [OSTI]

    Saltzman, Eric

    , and sulfur gases from Greenland ice cores M. Aydin,1 M. B. Williams,1 and E. S. Saltzman1 Received 7-lived atmospheric trace gases were measured in 25 ice core samples from Summit, Greenland. Samples were selected. The CH3Br results are consistent with previous observations of ``excess'' CH3Br in Greenland firn air

  20. Measuring Lagrangians. Octav Cornea

    E-Print Network [OSTI]

    Cornea, Octav

    positive energy value. New objects combine negative gradient flow lines and J-holomorphic disks (and, Weinstein). L (M, ), x L coordinate chart : Ux - B(r) so that: (1) (Ux, Ux L, x, ) = (B(r), Rn B is not compact due to energy concentration (bubbling off). Solution to A. Gomov's compactness theorem: add to M

  1. Fast hashing onto elliptic curves over fields of characteristic 3

    E-Print Network [OSTI]

    . Kim2 1 Scopus Tecnologia S. A. Av. Mutinga, 4105 BR 05110000 S~ao Paulo (SP), Brazil. pbarreto-900, S~ao Paulo(SP), Brazil. hae@lps.usp.br Abstract. We describe a fast hash algorithm that maps scheme is much faster in practice, and to the best of our knowledge not covered by patents. Currently

  2. 208 Int. J. Metadata, Semantics and Ontologies, Vol. 5, No. 3, 2010 Querying structured information sources on the Web

    E-Print Network [OSTI]

    Freire, Juliana

    (UFRGS), Porto Alegre 91501-970, Brazil E-mail: mergen@inf.ufrgs.br *Corresponding author Juliana Freire-970, Brazil E-mail: heuser@inf.ufrgs.br Abstract: To provide access to heterogeneous data distributed over Grande do Sul, Porto Alegre, Brazil. He achieved his MSc title at the same institute. He spent part

  3. Development of a Methyl Bromide Collection System for Fumigated

    E-Print Network [OSTI]

    the practice of complete coverage of the fields with polyethylene (PE) tarp. To reduce the emission of Me fumigation, there is a good potential for collection and recycle or proper disposal of MeBr (1). However as well as its low cost. Research has indicated that less MeBr is emitted when the entire field is covere

  4. Recharge/seepage from an array of rectangular Mahender Choudhary a

    E-Print Network [OSTI]

    Chahar, B. R.

    Recharge/seepage from an array of rectangular channels Mahender Choudhary a , Bhagu R. Chahar b@civil.iitd.ac.in, chahar_br@yahoo.com (B.R. Chahar). Journal of Hydrology (2007) 343, 7179 available at www

  5. In situ bioremediation of petrol contaminated groundwater

    E-Print Network [OSTI]

    Blouin-Demers, Gabriel

    21/11/08 1 In situ bioremediation of petrol contaminated groundwater Guido Miguel Delgadillo EVS and facts Likelihood of contamination Benefits of in situ bioremediation So... Ask not what groundwater Intrinsic BR vs. Engineered BR Anaerobic Bioremediation (1) Background Anaerobic conditions most likely

  6. Segmentation into fuzzy regions using topographic distance

    E-Print Network [OSTI]

    Philipp-Foliguet, Sylvie

    recognition from fuzzy regions. Keywords: Segmentation, Fuzzy region, Watershed, Color image, TopographicSegmentation into fuzzy regions using topographic distance SYLVIE PHILIPP­FOLIGUET 1 MARCELO@dcc.ufmg.br, arnaldo@dcc.ufmg.br 3 Supported by CAPES. Abstract. This paper exposes an algorithm that leads to a fuzzy

  7. 116 Polmeros: Cincia e Tecnologia -Out/Dez -99 Avaliao da Degradao Trmica e

    E-Print Network [OSTI]

    Ferreira, Mrcia M. C.

    116 Polmeros: Cincia e Tecnologia - Out/Dez - 99 A R T I G O T C N I C O C I E N T F I C O-mail: betesan@iqm.unicamp.br, misabel@iqm.unicamp.br. #12;117Polmeros: Cincia e Tecnologia - Out/Dez - 99

  8. Unidade Coordenador Endereo Jos Ivan da Silva Ramos

    E-Print Network [OSTI]

    Solodov, Mikhail V.

    HENRIQUE REFFERT FILHO e-mail: reffertfilho@yahoo.com.br Rua Plcido de Castro, 89 - Conj. D. Pedro I D 58429-970 Campina Grande, PB 9 Unicamp Antonio Carlos do Patrocnio acpatro@uol.com.br IMECC/UNICAMP Rua Educao,Cincia e Tecnologia do Cear - Campus Acara Av. Des. Armando de Sales Louzada, s/n Mons. Jos

  9. A smart multi-hop hierarchical routing protocol for efficient video communication over wireless

    E-Print Network [OSTI]

    Braun, Torsten

    in environmental monitoring, smart parking, traffic control, smart city and others [2]. In this context, smartA smart multi-hop hierarchical routing protocol for efficient video communication over wireless.costa@itec.ufpa.br, {helderp, kassiolsm, cerqueira}@ufpa.br and braun@iam.unibe.ch Abstract--For smart applications, nodes

  10. ASYMPTOTIC PROPERTIES OF THE HEAT KERNEL ON CONIC MANIFOLDS

    E-Print Network [OSTI]

    Loya, Paul

    ASYMPTOTIC PROPERTIES OF THE HEAT KERNEL ON CONIC MANIFOLDS PAUL LOYA Abstract. We derive Foundation Fellowship. 1 #12; 2 PAUL LOYA Trace expansions of cone operators has a long history stemming from on conic manifolds; see for instance, Callias [5], Cheeger [7], Chou [9], Br?uning--Seeley [3], Br

  11. Properties of Some Integral Transforms Arising in Tomography

    E-Print Network [OSTI]

    Moon, Sunghwan

    2013-10-11T23:59:59.000Z

    angle pi ? ? arriving at point C(?, t) (see Figures 3.1, 3.2). The V-line Radon transform of function f is the integral V Rf(?, t) = ? BR(?,t) f ds, ? ? [0, 2pi], t ? [0, R], of f(x, y) along the broken ray BR(?, t) with respect to linear measure ds... pi ? 0 f(?, ?) e?in?d?, gn(t) = 1 2pi 2pi ? 0 g(?, t) e?in?d?. Using the rotation invariance of V Rf (see Figure 3.2), we get g(?, t) = ? BR(?,t) f(?, ?)ds = ? BR(0,t) f(?+ ?, ?)ds = ? ? n=?? ? BR(0,t) fn(?)ein(?+?)ds. Hence, we obtain the following...

  12. Synthesis of Through-bond Energy Transfer Cassettes and Their Encapsulation in Silica and Calcium Phosphate Nanoparticles

    E-Print Network [OSTI]

    Jose, Jiney

    2011-02-22T23:59:59.000Z

    Br OMe 2 NNMe 2 Br ONN Br ! max eis. = 534 nm 1 2 58 nm 3 605 nm OOHO ON O - 2 C N 4 61 nm ONN Br 5 6 7 8 Figure 1.3. Through-bond energy transfer casetes and aceptors synthesized by our group. 8 Figure 1.4. (a) absorbance of casetes 1...OH, Cl reflux, 12 h 9 10 67 % HO 2 C EtO 2 C NaO 2 , HCl 0 o C, 3h OHN CO 2 Et EtO 2 C NO .HCl 1 7 % OH OH EtH, Cl reflux, 5h O N OH N O CO 2 Et EtO 2 C 12 37 % 15 BrCO 2 t-Bu O N O N O CO 2 Et CO 2 H Cs 2 O 3 , H 3 N, 60 o C, 6h (i) TFA, CH 2...

  13. The production of brailled instructional materials in Texas public schools

    E-Print Network [OSTI]

    Stough, Laura

    2007-01-01T23:59:59.000Z

    T o In te in c T . S A the ar ail w f C ha deq th ey go B fro fo vi of that they produced received little atten- tio th Ch me ab Si Am Te lut the tan Th be am ma ag Co tio stu (2 ment of braille transcribers throughoutn in the research literature... pe Th tea Ca M th fu Fo be sh wh re pr ca wh er m re Al of im re lar th wi M de of br as fluent as those of teachers who use br is a Fo wh fiv tra Th .5 an th ac Ba stu or of br Ho ter wh sk (2 br ce sc an pr of na Un m de Ag er fic br nories greatly...

  14. Second Harmonic Generation Studies of Fe(II) Interactions with Hematite (?-Fe2O3)

    SciTech Connect (OSTI)

    Jordan, David S.; Hull, Christopher J.; Troiano, Julianne M.; Riha, Shannon C.; Martinson, Alex B.; Rosso, Kevin M.; Geiger, Franz M.

    2013-02-28T23:59:59.000Z

    Iron oxides are a ubiquitous class of compounds that are involved in many biological, geological, and technological processes, and the Fe(III)/Fe(II) redox couple is a fundamental transformation pathway; however, the study of iron oxide surfaces in aqueous solution by powerful spectroscopic techniques has been limited due to "strong absorber problem". In this work, atomic layer deposition (ALD) thin films of polycrystalline alpha-Fe2O3 were analyzed using the Eisenthal chi((3)) technique, a variant of second harmonic generation that reports on interfacial potentials. By determining the surface charge densities at multiple pH values, the point of zero charge was found to be 5.5 +/- 0.3. The interaction of aqueous Fe(II) at pH 4 and in 1 mM NaCl with ALD-prepared hematite was found to be fully reversible and to lead to about 4 times more ferrous iron ions adsorbed per square centimeter than on fused-silica surfaces under the same conditions. The data are consistent with a recently proposed conceptual model for net Fe(II) uptake or release that is underlain by a dynamic equilibrium between Fe(II) adsorbed onto hematite, electron transfer into favorable surface sites with attendant Fe(III) deposition, and electron conduction to favorable remote sites that release and replenish aqueous Fe(II).

  15. Positron annihilation studies of the AlO{sub x}/SiO{sub 2}/Si interface in solar cell structures

    SciTech Connect (OSTI)

    Edwardson, C. J.; Coleman, P. G. [Department of Physics, University of Bath, Bath BA2 7AY (United Kingdom); Li, T.-T. A.; Cuevas, A. [College of Engineering and Computer Science, Australian National University, Canberra, ACT 0200 (Australia); Ruffell, S. [Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200 (Australia)

    2012-03-01T23:59:59.000Z

    Film and film/substrate interface characteristics of 30 and 60 nm-thick AlO{sub x} films grown on Si substrates by thermal atomic layer deposition (ALD), and 30 nm-thick AlO{sub x} films by sputtering, have been probed using variable-energy positron annihilation spectroscopy (VEPAS) and Doppler-broadened spectra ratio curves. All samples were found to have an interface which traps positrons, with annealing increasing this trapping response, regardless of growth method. Thermal ALD creates an AlO{sub x}/SiO{sub x}/Si interface with positron trapping and annihilation occurring in the Si side of the SiO{sub x}/Si boundary. An induced positive charge in the Si next to the interface reduces diffusion into the oxides and increases annihilation in the Si. In this region there is a divacancy-type response (20 {+-} 2%) before annealing which is increased to 47 {+-} 2% after annealing. Sputtering seems to not produce samples with this same electrostatic shielding; instead, positron trapping occurs directly in the SiO{sub x} interface in the as-deposited sample, and the positron response to it increases after annealing as an SiO{sub 2} layer is formed. Annealing the film has the effect of lowering the film oxygen response in all film types. Compared to other structural characterization techniques, VEPAS shows larger sensitivity to differences in film preparation method and between as-deposited and annealed samples.

  16. Low sheet resistance titanium nitride films by low-temperature plasma-enhanced atomic layer deposition using design of experiments methodology

    SciTech Connect (OSTI)

    Burke, Micheal, E-mail: micheal.burke@tyndall.ie; Blake, Alan; Povey, Ian M.; Schmidt, Michael; Petkov, Nikolay; Carolan, Patrick; Quinn, Aidan J., E-mail: aidan.quinn@tyndall.ie [Tyndall National Institute, University College Cork, Cork (Ireland)

    2014-05-15T23:59:59.000Z

    A design of experiments methodology was used to optimize the sheet resistance of titanium nitride (TiN) films produced by plasma-enhanced atomic layer deposition (PE-ALD) using a tetrakis(dimethylamino)titanium precursor in a N{sub 2}/H{sub 2} plasma at low temperature (250?C). At fixed chamber pressure (300 mTorr) and plasma power (300?W), the plasma duration and N{sub 2} flow rate were the most significant factors. The lowest sheet resistance values (163??/sq. for a 20?nm TiN film) were obtained using plasma durations ?40?s, N{sub 2} flow rates >60 standard cubic centimeters per minute, and purge times ?60?s. Time of flight secondary ion mass spectroscopy data revealed reduced levels of carbon contaminants in the TiN films with lowest sheet resistance (163??/sq.), compared to films with higher sheet resistance (400600??/sq.) while transmission electron microscopy data showed a higher density of nanocrystallites in the low-resistance films. Further significant reductions in sheet resistance, from 163??/sq. to 70??/sq. for a 20?nm TiN film (corresponding resistivity ?145 ??cm), were achieved by addition of a postcycle Ar/N{sub 2} plasma step in the PE-ALD process.

  17. Al{sub 2}O{sub 3}/GeO{sub x} gate stack on germanium substrate fabricated by in situ cycling ozone oxidation method

    SciTech Connect (OSTI)

    Yang, Xu; Zeng, Zhen-Hua [Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096 (China); Microwave Device and IC Department, Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029 (China); Wang, Sheng-Kai, E-mail: wangshengkai@ime.ac.cn, E-mail: xzhang62@aliyun.com, E-mail: liuhonggang@ime.ac.cn; Sun, Bing; Zhao, Wei; Chang, Hu-Dong; Liu, Honggang, E-mail: wangshengkai@ime.ac.cn, E-mail: xzhang62@aliyun.com, E-mail: liuhonggang@ime.ac.cn [Microwave Device and IC Department, Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029 (China); Zhang, Xiong, E-mail: wangshengkai@ime.ac.cn, E-mail: xzhang62@aliyun.com, E-mail: liuhonggang@ime.ac.cn [Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096 (China)

    2014-09-01T23:59:59.000Z

    Al{sub 2}O{sub 3}/GeO{sub x}/Ge gate stack fabricated by an in situ cycling ozone oxidation (COO) method in the atomic layer deposition (ALD) system at low temperature is systematically investigated. Excellent electrical characteristics such as minimum interface trap density as low as 1.9??10{sup 11?}cm{sup ?2?}eV{sup ?1} have been obtained by COO treatment. The impact of COO treatment against the band alignment of Al{sub 2}O{sub 3} with respect to Ge is studied by x-ray photoelectron spectroscopy (XPS) and spectroscopic ellipsometry (SE). Based on both XPS and SE studies, the origin of gate leakage in the ALD-Al{sub 2}O{sub 3} is attributed to the sub-gap states, which may be correlated to the OH-related groups in Al{sub 2}O{sub 3} network. It is demonstrated that the COO method is effective in repairing the OH-related defects in high-k dielectrics as well as forming superior high-k/Ge interface for high performance Ge MOS devices.

  18. C-H surface diamond field effect transistors for high temperature (400?C) and high voltage (500?V) operation

    SciTech Connect (OSTI)

    Kawarada, H., E-mail: kawarada@waseda.jp [Faculty of Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Institute of Nano-Science and Nano-Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Kagami Memorial Laboratory for Material Science and Technology, Waseda University, Shinjuku, Tokyo 169-0051 (Japan); Tsuboi, H.; Naruo, T.; Yamada, T.; Xu, D.; Daicho, A.; Saito, T. [Faculty of Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Hiraiwa, A. [Institute of Nano-Science and Nano-Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan)

    2014-07-07T23:59:59.000Z

    By forming a highly stable Al{sub 2}O{sub 3} gate oxide on a C-H bonded channel of diamond, high-temperature, and high-voltage metal-oxide-semiconductor field-effect transistor (MOSFET) has been realized. From room temperature to 400?C (673?K), the variation of maximum drain-current is within 30% at a given gate bias. The maximum breakdown voltage (V{sub B}) of the MOSFET without a field plate is 600?V at a gate-drain distance (L{sub GD}) of 7 ?m. We fabricated some MOSFETs for which V{sub B}/L{sub GD}?>?100?V/?m. These values are comparable to those of lateral SiC or GaN FETs. The Al{sub 2}O{sub 3} was deposited on the C-H surface by atomic layer deposition (ALD) at 450?C using H{sub 2}O as an oxidant. The ALD at relatively high temperature results in stable p-type conduction and FET operation at 400?C in vacuum. The drain current density and transconductance normalized by the gate width are almost constant from room temperature to 400?C in vacuum and are about 10 times higher than those of boron-doped diamond FETs.

  19. High aspect ratio iridescent three-dimensional metalinsulatormetal capacitors using atomic layer deposition

    SciTech Connect (OSTI)

    Burke, Micheal, E-mail: micheal.burke@tyndall.ie; Blake, Alan; Djara, Vladimir; O'Connell, Dan; Povey, Ian M.; Cherkaoui, Karim; Monaghan, Scott; Scully, Jim; Murphy, Richard; Hurley, Paul K.; Pemble, Martyn E.; Quinn, Aidan J., E-mail: aidan.quinn@tyndall.ie [Tyndall National Institute, University College Cork, Cork (Ireland)

    2015-01-01T23:59:59.000Z

    The authors report on the structural and electrical properties of TiN/Al{sub 2}O{sub 3}/TiN metalinsulatormetal (MIM) capacitor structures in submicron three-dimensional (3D) trench geometries with an aspect ratio of ?30. A simplified process route was employed where the three layers for the MIM stack were deposited using atomic layer deposition (ALD) in a single run at a process temperature of 250?C. The TiN top and bottom electrodes were deposited via plasma-enhanced ALD using a tetrakis(dimethylamino)titanium precursor. 3D trench devices yielded capacitance densities of 36 fF/?m{sup 2} and quality factors >65 at low frequency (200?Hz), with low leakage current densities (<3 nA/cm{sup 2} at 1 V). These devices also show strong optical iridescence which, when combined with the covert embedded capacitance, show potential for system in package (SiP) anticounterfeiting applications.

  20. Electrical behavior of atomic layer deposited high quality SiO{sub 2} gate dielectric

    SciTech Connect (OSTI)

    Pradhan, Sangram K.; Tanyi, Ekembu K.; Skuza, Jonathan R.; Xiao, Bo; Pradhan, Aswini K., E-mail: apradhan@nsu.edu [Center for Materials Research, Norfolk State University, 700 Park Ave., Norfolk, Virginia 23504 (United States)

    2015-01-01T23:59:59.000Z

    Comprehensive and systematic electrical studies were performed on fabrication of high quality SiO{sub 2} thin films MOS capacitor using the robust, novel, and simple atomic layer deposition (ALD) technique using highly reactive ozone and tris (dimethylamino) silane (TDMAS) precursors. Ideal capacitancevoltage curve exhibits a very small frequency dispersion and hysteresis behavior of the SiO{sub 2} MOS capacitor grown at 1?s TDMAS pulse, suggesting excellent interfacial quality and purity of the film as probed using x-ray photoelectron studies. The flat-band voltage of the device shifted from negative toward positive voltage axis with increase of TDMAS pulses from 0.2 to 2 s. Based on an equivalent oxide thickness point of view, all SiO{sub 2} films have gate leakage current density of (5.18??10{sup ?8} A/cm{sup 2}) as well as high dielectric break down fields of more than (?10 MV/cm), which is better and comparable to that of thermally grown SiO{sub 2} at temperatures above 800?C. These appealing electrical properties of ALD grown SiO{sub 2} thin films enable its potential applications such as high-quality gate insulators for thin film MOS transistors, as well as insulators for sensor and nanostructures on nonsilicon substrates.

  1. Catalytic nanoporous membranes

    DOE Patents [OSTI]

    Pellin, Michael J; Hryn, John N; Elam, Jeffrey W

    2013-08-27T23:59:59.000Z

    A nanoporous catalytic membrane which displays several unique features Including pores which can go through the entire thickness of the membrane. The membrane has a higher catalytic and product selectivity than conventional catalysts. Anodic aluminum oxide (AAO) membranes serve as the catalyst substrate. This substrate is then subjected to Atomic Layer Deposition (ALD), which allows the controlled narrowing of the pores from 40 nm to 10 nm in the substrate by deposition of a preparatory material. Subsequent deposition of a catalytic layer on the inner surfaces of the pores reduces pore sizes to less than 10 nm and allows for a higher degree of reaction selectivity. The small pore sizes allow control over which molecules enter the pores, and the flow-through feature can allow for partial oxidation of reactant species as opposed to complete oxidation. A nanoporous separation membrane, produced by ALD is also provided for use in gaseous and liquid separations. The membrane has a high flow rate of material with 100% selectivity. Also provided is a method for producing a catalytic membrane having flow-through pores and discreet catalytic clusters adhering to the inside surfaces of the pores.

  2. Fluidized-bed atomic layer deposition reactor for the synthesis of core-shell nanoparticles

    SciTech Connect (OSTI)

    Didden, Arjen P.; Middelkoop, Joost; Krol, Roel van de, E-mail: roel.vandekrol@helmholtzberlin.de [Delft University of Technology, Faculty of Applied Sciences, Department of Chemical Engineering, P.O. Box 5045, 2600 GA Delft (Netherlands); Besling, Wim F. A. [NXP Semiconductors, High Tech Campus 32, 5656 AE Eindhoven (Netherlands)] [NXP Semiconductors, High Tech Campus 32, 5656 AE Eindhoven (Netherlands); Nanu, Diana E. [Thin Film Factory B.V., Hemma Oddastrjitte 5, 8927 AA Leeuwarden (Netherlands)] [Thin Film Factory B.V., Hemma Oddastrjitte 5, 8927 AA Leeuwarden (Netherlands)

    2014-01-15T23:59:59.000Z

    The design of a fluidized bed atomic layer deposition (ALD) reactor is described in detail. The reactor consists of three parts that have all been placed in one protective cabinet: precursor dosing, reactor, and residual gas treatment section. In the precursor dosing section, the chemicals needed for the ALD reaction are injected into the carrier gas using different methods for different precursors. The reactor section is designed in such a way that a homogeneous fluidized bed can be obtained with a constant, actively controlled, reactor pressure. Furthermore, no filters are required inside the reactor chamber, minimizing the risk of pressure increase due to fouling. The residual gas treatment section consists of a decomposition furnace to remove residual precursor and a particle filter and is installed to protect the pump. In order to demonstrate the performance of the reactor, SiO{sub 2} particles have been coated with TiO{sub 2} using tetrakis-dimethylamino titanium (TDMAT) and H{sub 2}O as precursors. Experiments with varying pulse times show that saturated growth can be obtained with TDMAT pulse times larger than 600 s. Analysis of the powder with High-Angle Annular Dark-Field Scanning Transmission Electron Microscopy (HAADF-STEM) and energy dispersive X-ray spectroscopy confirmed that after 50 cycles, all SiO{sub 2} particles were coated with a 1.6 nm homogenous shell of TiO{sub 2}.

  3. Atom probe tomography studies of Al?O? gate dielectrics on GaN

    SciTech Connect (OSTI)

    Mazumder, Baishakhi, E-mail: bmazumder@engineering.ucsb.edu; Wu, Feng; Speck, James S. [Materials Department, University of California, Santa Barbara, California 93106 (United States); Liu, Xiang; Yeluri, Ramya; Mishra, Umesh K. [Electrical and Computer Engineering Department, University of California, Santa Barbara, California 93106 (United States)

    2014-10-07T23:59:59.000Z

    Atom probe tomography was used to achieve three-dimensional characterization of in situ Al?O?/GaN structures grown by metal organic chemical vapor deposition (MOCVD). Al?O? dielectrics grown at three different temperatures of 700, 900, and 1000 C were analyzed and compared. A low temperature GaN cap layer grown atop Al?O? enabled a high success rate in the atom probe experiments. The Al?O?/GaN interfaces were found to be intermixed with Ga, N, and O over the distance of a few nm. Impurity measurements data showed that the 1000 C sample contains higher amounts of C (4 10?/cm) and lower amounts of H (7 10?/cm), whereas the 700 C sample exhibits lower C impurities (<10?/cm) and higher H incorporation (2.2 10?/cm). On comparing with Al?O? grown by atomic layer deposition (ALD), it was found that the MOCVD Al?O?/GaN interface is comparatively abrupt. Scanning transmission electron microscopy data showed that the 900 C and 1000 C MOCVD films exhibit polycrystalline nature, while the ALD films were found to be amorphous.

  4. Interfacial chemistry and valence band offset between GaN and Al{sub 2}O{sub 3} studied by X-ray photoelectron spectroscopy

    SciTech Connect (OSTI)

    Duan, T. L.; Ang, D. S. [School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore)] [School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore); Pan, J. S. [Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore)] [Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore)

    2013-05-20T23:59:59.000Z

    The interface region between Ga-face n-type GaN and Al{sub 2}O{sub 3} dielectric (achieved via atomic-layer deposition or ALD) is investigated by X-ray photoelectron spectroscopy (XPS). An increase in the Ga-O to Ga-N bond intensity ratio following Al{sub 2}O{sub 3} deposition implies that the growth of an interfacial gallium sub-oxide (GaO{sub x}) layer occurred during the ALD process. This finding may be ascribed to GaN oxidation, which may still happen following the reduction of a thin native GaO{sub x} by trimethylaluminum (TMA) in the initial TMA-only cycles. The valence band offset between GaN and Al{sub 2}O{sub 3}, obtained using both core-level and valence band spectra, is found to vary with the thickness of the deposited Al{sub 2}O{sub 3}. This observation may be explained by an upward energy band bending at the GaN surface (due to the spontaneous polarization induced negative bound charge on the Ga-face GaN) and the intrinsic limitation of the XPS method for band offset determination.

  5. Preparation of gallium nitride surfaces for atomic layer deposition of aluminum oxide

    SciTech Connect (OSTI)

    Kerr, A. J. [Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093 (United States); Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093 (United States); Chagarov, E.; Kaufman-Osborn, T.; Kummel, A. C., E-mail: akummel@ucsd.edu [Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093 (United States); Gu, S.; Wu, J.; Asbeck, P. M. [Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093 (United States); Madisetti, S.; Oktyabrsky, S. [Department of Nanoscale Science and Engineering, University at AlbanyState University of New York, Albany, New York 12222 (United States)

    2014-09-14T23:59:59.000Z

    A combined wet and dry cleaning process for GaN(0001) has been investigated with XPS and DFT-MD modeling to determine the molecular-level mechanisms for cleaning and the subsequent nucleation of gate oxide atomic layer deposition (ALD). In situ XPS studies show that for the wet sulfur treatment on GaN(0001), sulfur desorbs at room temperature in vacuum prior to gate oxide deposition. Angle resolved depth profiling XPS post-ALD deposition shows that the a-Al{sub 2}O{sub 3} gate oxide bonds directly to the GaN substrate leaving both the gallium surface atoms and the oxide interfacial atoms with XPS chemical shifts consistent with bulk-like charge. These results are in agreement with DFT calculations that predict the oxide/GaN(0001) interface will have bulk-like charges and a low density of band gap states. This passivation is consistent with the oxide restoring the surface gallium atoms to tetrahedral bonding by eliminating the gallium empty dangling bonds on bulk terminated GaN(0001)

  6. Laser damage properties of TiO{sub 2}/Al{sub 2}O{sub 3} thin films grown by atomic layer deposition

    SciTech Connect (OSTI)

    Wei Yaowei; Liu Hao; Sheng Ouyang; Liu Zhichao; Chen Songlin; Yang Liming

    2011-08-20T23:59:59.000Z

    Research on thin film deposited by atomic layer deposition (ALD) for laser damage resistance is rare. In this paper, it has been used to deposit TiO{sub 2}/Al{sub 2}O{sub 3} films at 110 deg. C and 280 deg. C on fused silica and BK7 substrates. Microstructure of the thin films was investigated by x-ray diffraction. The laser-induced damage threshold (LIDT) of samples was measured by a damage test system. Damage morphology was studied under a Nomarski differential interference contrast microscope and further checked under an atomic force microscope. Multilayers deposited at different temperatures were compared. The results show that the films deposited by ALD had better uniformity and transmission; in this paper, the uniformity is better than 99% over 100 mm {Phi} samples, and the transmission is more than 99.8% at 1064 nm. Deposition temperature affects the deposition rate and the thin film microstructure and further influences the LIDT of the thin films. As to the TiO{sub 2}/Al{sub 2}O{sub 3} films, the LIDTs were 6.73{+-}0.47 J/cm{sup 2} and 6.5{+-}0.46 J/cm{sup 2} at 110 deg. C on fused silica and BK7 substrates, respectively. The LIDTs at 110 deg. C are notably better than 280 deg. C.

  7. Electrolyte effects in Li(Si)/FeS{sub 2} thermal batteries

    SciTech Connect (OSTI)

    Guidotti, R.A.; Reinhardt, F.W.

    1994-10-01T23:59:59.000Z

    The most common electrochemical couple for thermally activated (``thermal``) batteries is the Li-alloy/FeS{sub 2} system. The most common Li-alloys used for anodes are 20% Li-80% Al and 44% Li-56% Si (by weight); liquid Li immobilized with iron powder has also been used. The standard electrolyte that has been used in thermal batteries over the years is the LiCl-KCl eutectic that melts at 352{degrees}C. The LiCl-LiBr-LiF eutectic had the best rate and power characteristics. This electrolyte melts at 436{degrees}C and shows very low polarization because of the absence of Li+ gradients common with the LiCl-KCl eutectic. The low-melting electrolytes examined included a KBr-LiBr-LiCl eutectic (melting at 321{degrees}C), a LiBr-KBr-LiF eutectic (melting at 313{degrees}C), and a CsBr-LiBr-KBr eutectic (melting at 238{degrees}C). The CsBr-based salt had poor conductivity and was not studied further. The LiBr-KBr-LiF eutectic outperformed the KBr-LiBr-LiCl eutectic and was selected for more extensive testing. Because of their lower melting points and larger liquidi relative to the LiCl-KCl eutectic, the low-melting electrolytes are prime candidates for long-life applications (i.e., for activated lives of one hour or more). This paper will detail the relative performance of the Li(Si)/FeS{sub 2} couple using primarily the LiCl-KCl (standard) eutectic, the LiCl-LiBr-LiF (all-Li) eutectic, and the LiBr-KBr-LiF (low-melting) eutectic electrolytes. Most of the tests were conducted with 5-cell batteries; validation tests were also carried out with appropriate full-sized batteries.

  8. Dominant delayed neutron precursors to model reactivity predictions for multiple fissioning nuclides

    SciTech Connect (OSTI)

    Loaiza, D.J.; Haskin, F.E.

    2000-01-01T23:59:59.000Z

    The product of cumulative yield and probability of neutron emission is used to assess the relative importance of known delayed neutron precursors. Thirteen precursors are consistently dominant. Nonlinear fits to experimental delayed neutron decay data distinguish the decay constants of the three longest-lived dominant precursors: {sup 87}Br, {sup 137}I, and {sup 88}Br. Sensitivity calculations based on a six-to seven-group transformation lead to a proposed seven-group formulation in which the group decay constants are those of dominant precursors: {sup 87}Br, {sup 137}I, {sup 88}Br, {sup 93}Rb, {sup 139}I, {sup 91}Br, and {sup 96}Rb. An alternative six-group formulation is obtained by using the mean of the {sup 137}I and {sup 88}Br decay constants for group 2. The use of the suggested dominant precursor decay constants improves the goodness of fit to experimental data compared to that obtained from nonlinear least squares in which both group yields and decay constants are determined empirically. Reactivity worth and transient analyses confirm that the positive reactivity scale is preserved in the transformation. A known bias in the negative reactivity scale is eliminated by forcing the half-life of the longest-lived group to be the 55.9-s half-life of {sup 87}Br. The proposed use of dominant precursor decay constants offers significant simplifications in data analysis and the analysis of fast, epithermal, and thermal reactors with multiple fissioning nuclides.

  9. Tumor Response and Apoptosis of N1-S1 Rodent Hepatomas in Response to Intra-arterial and Intravenous Benzamide Riboside

    SciTech Connect (OSTI)

    McLennan, Gordon, E-mail: gmclenna@me.com; Bennett, Stacy L. [Cleveland Clinic, Imaging Institute and Department of Bioengineering (United States); Ju, Shenghong [Zhongda Hospital, Southeast University, Department of Radiology (China); Babsky, Andriy; Bansal, Navin; Shorten, Michelle L. [Indiana University School of Medicine, Department of Radiology and Imaging Sciences (United States); Levitin, Seth [Cleveland Clinic, Imaging Institute and Department of Bioengineering (United States); Bonnac, Laurent; Panciewicz, Krystoff W. [University of Minnesota Center for Drug Design (United States); Jayaram, Hiramagular N. [Indiana University and Richard L. Roudebush VA Medical Center, Department of Biochemistry (United States)

    2012-06-15T23:59:59.000Z

    Purpose: Benzamide riboside (BR) induces tumor apoptosis in multiple cell lines and animals. This pilot study compares apoptosis and tumor response in rat hepatomas treated with hepatic arterial BR (IA) or intravenous (IV) BR. Methods: A total of 10{sup 6} N1-S1 cells were placed in the left hepatic lobes of 15 Sprague-Dawley rats. After 2 weeks, BR (20 mg/kg) was infused IA (n = 5) or IV (n = 5). One animal in each group was excluded for technical factors, which prevented a full dose administration (1 IA and 1 IV). Five rats received saline (3 IA and 2 IV). Animals were killed after 3 weeks. Tumor volumes after IA and IV treatments were analyzed by Wilcoxon rank sum test. The percentage of tumor and normal liver apoptosis was counted by using 10 fields of TUNEL (terminal deoxynucleotidyl transferase dUTP nick-end labeling)-stained slides at 40 Multiplication-Sign magnification. The percentage of apoptosis was compared between IV and IA administrations and with saline sham-treated rats by the Wilcoxon rank sum test. Results: Tumors were smaller after IA treatment, but this did not reach statistical significance (0.14 IA vs. 0.57 IV; P = 0.138). There was much variability in percentage of apoptosis and no significant difference between IA and IV BR (44.49 vs. 1.52%; P = 0.18); IA BR and saline (44.49 vs. 33.83%; P = 0.66); or IV BR and saline (1.52 vs. 193%; P = 0.18). Conclusions: Although differences in tumor volumes did not reach statistical significance, there was a trend toward smaller tumors after IA BR than IV BR in this small pilot study. Comparisons of these treatment methods will require a larger sample size and repeat experimentation.

  10. Ionization and dissociation dynamics of vinyl bromide probed by femtosecond extreme ultraviolet transient absorption spectroscopy

    SciTech Connect (OSTI)

    Lin, Ming-Fu; Neumark, Daniel M. [Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States) [Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Chemistry, University of California, Berkeley, California 94720 (United States); Gessner, Oliver [Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)] [Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Leone, Stephen R. [Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States) [Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Chemistry, University of California, Berkeley, California 94720 (United States); Department of Physics, University of California, Berkeley, California 94720 (United States)

    2014-02-14T23:59:59.000Z

    Strong-field induced ionization and dissociation dynamics of vinyl bromide, CH{sub 2}=CHBr, are probed using femtosecond extreme ultraviolet (XUV) transient absorption spectroscopy. Strong-field ionization is initiated with an intense femtosecond, near infrared (NIR, 775 nm) laser field. Femtosecond XUV pulses covering the photon energy range of 50-72 eV probe the subsequent dynamics by measuring the time-dependent spectroscopic features associated with transitions of the Br (3d) inner-shell electrons to vacancies in molecular and atomic valence orbitals. Spectral signatures are observed for the depletion of neutral C{sub 2}H{sub 3}Br, the formation of C{sub 2}H{sub 3}Br{sup +} ions in their ground (X{sup ~}) and first excited (A{sup ~}) states, the production of C{sub 2}H{sub 3}Br{sup ++} ions, and the appearance of neutral Br ({sup 2}P{sub 3/2}) atoms by dissociative ionization. The formation of free Br ({sup 2}P{sub 3/2}) atoms occurs on a timescale of 330 150 fs. The ionic A{sup ~} state exhibits a time-dependent XUV absorption energy shift of ?0.4 eV within the time window of the atomic Br formation. The yield of Br atoms correlates with the yield of parent ions in the A{sup ~} state as a function of NIR peak intensity. The observations suggest that a fraction of vibrationally excited C{sub 2}H{sub 3}Br{sup +} (A{sup ~}) ions undergoes intramolecular vibrational energy redistribution followed by the CBr bond dissociation. The C{sub 2}H{sub 3}Br{sup +} (X{sup ~}) products and the majority of the C{sub 2}H{sub 3}Br{sup ++} ions are relatively stable due to a deeper potential well and a high dissociation barrier, respectively. The results offer powerful new insights about orbital-specific electronic processes in high field ionization, coupled vibrational relaxation and dissociation dynamics, and the correlation of valence hole-state location and dissociation in polyatomic molecules, all probed simultaneously by ultrafast table-top XUV spectroscopy.

  11. Spectroscopic measurement of bromine oxide and ozone in the high Arctic during Polar Sunrise Experiment 1992

    SciTech Connect (OSTI)

    Hausmann, M.; Platt, U. [Universitaet Heidelberg (Germany)] [Universitaet Heidelberg (Germany)

    1994-12-20T23:59:59.000Z

    The authors report the measurement of BrO radical densities and ozone in the Arctic troposphere by means of differential optical absorption using very long paths. They observed levels of BrO which varied from below the detection limit to 17 ppt. Such concentrations alone cannot account for the catalytic destruction of ozone observed during periods of episodic ozone variation. The authors offer a model which involves BrO catalyzed reactions, advection, and atmospheric mixing which they argue could account for the observed ozone depletions.

  12. New syntheses of aminoalkylphosphonic acids

    E-Print Network [OSTI]

    DeBardeleben, John Frederick

    1963-01-01T23:59:59.000Z

    . , Agr. Biol. Chem (Tokyo), S. , Roberts, E. ? and Simonsen, D. Go, Bio- 624 ( 1962) . Chavane condensed N-(bromomethyl)phthalimide (I) with 7 dibutyl sodiophosphonate to obtair. dibutyl phthalimidomethyl- phosphonate (II). 0 w 0 c 2 N-CH2Br.... Elemental analysis, coupled with the molecular weight deter- mination, indicated a formula of C6H12NOgBr2P (molecular weight 353) ~ Three feasible structures for C6H12NOgBr2P, which might have resulted from the rea. ction of diethyl phosphonoaceta- mide...

  13. Ion exchange selectivity of a perfluorosulfonate ionomer

    E-Print Network [OSTI]

    Wilkerson, James Edward

    1983-01-01T23:59:59.000Z

    (TMA-Cl) as Eluent 6 Elution of Viologens with Tetraethyl Ammonium Br {TEA-Br) as Eluent 7 Effect of Concentration of KC1 on Retention Volume of Methyl Viologen on Column N-1 8 Effect. of Organic Modifier on V r 9 Effect of Organic Modifier...-4 with TMA-Br as Eluent 2 39 14 Effect of Nafion Volume on Retention Volume of Pyridinium Bromides. 41 vii LIST OF FIGURES Failure 1 Calibration Curve of Ru(bpy) 3 in Methanol. 2+ 2 Effect of Ionic Strength on Elution of Methyl Viologen 3...

  14. A geometrical characterization of commutative positive operator valued measures

    SciTech Connect (OSTI)

    Beneduci, Roberto [Dipartimento di Matematica, Universita della Calabria, Istituto Nazionale di Fisica Nucleare, Gruppo c. Cosenza, Arcavacata di Rende (Serbia and Montenegro) (Italy)

    2006-06-15T23:59:59.000Z

    We show that a POV measure F on the Borel {sigma}-algebra of the reals B(R) is commutative if and only if there exists a PV measure E on B(R) and, for every {lambda} in the spectrum of E, a probability measure {gamma}{sub ({center_dot})}({lambda}) on B(R) such that the effect F({delta}) coincides with {gamma}{sub {delta}}(A), where A is the self-adjoint operator associated to E. The relevance of this result to the theory of the sharp reconstruction is analyzed.

  15. Refractory two-dimensional hole gas on hydrogenated diamond surface

    SciTech Connect (OSTI)

    Hiraiwa, Atsushi [Institute for Nanoscience and Nanotechnology, Waseda University, 513 Waseda-tsurumaki, Shinjuku, Tokyo 162-0041 (Japan); Daicho, Akira; Kurihara, Shinichiro; Yokoyama, Yuki; Kawarada, Hiroshi [Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan)

    2012-12-15T23:59:59.000Z

    Use of two-dimensional hole gas (2DHG), induced on a hydrogenated diamond surface, is a solution to overcoming one of demerits of diamond, i.e., deep energy levels of impurities. This 2DHG is affected by its environment and accordingly needs a passivation film to get a stable device operation especially at high temperature. In response to this requirement, we achieved the high-reliability passivation forming an Al{sub 2}O{sub 3} film on the diamond surface using an atomic-layer-deposition (ALD) method with an H{sub 2}O oxidant at 450 Degree-Sign C. The 2DHG thus protected survived air annealing at 550 Degree-Sign C for an hour, establishing a stable high-temperature operation of 2DHG devices in air. In part, this achievement is based on high stability of C-H bonds up to 870 Degree-Sign C in vacuum and above 450 Degree-Sign C in an H{sub 2}O-containing environment as in the ALD. Chemically, this stability is supported by the fact that both the thermal decomposition of C-H bonds and reaction between C-H bonds and H{sub 2}O are endothermic processes. It makes a stark contrast to the instability of Si-H bonds, which decompose even at room temperature being exposed to atomic hydrogen. In this respect, the diamond 2DHG devices are also promising as power devices expectedly being free from many instability phenomena, such as hot carrier effect and negative-bias temperature instability, associated with Si devices. As to adsorbate, which is the other prerequisite for 2DHG, it desorbed in vacuum below 250 Degree-Sign C, and accordingly some new adsorbates should have adsorbed during the ALD at 450 Degree-Sign C. As a clue to this question, we certainly confirmed that some adsorbates, other than those at room temperature, adsorbed in air above 100 Degree-Sign C and remained at least up to 290 Degree-Sign C. The identification of these adsorbates is open for further investigation.

  16. High Rate and High Capacity Li-Ion Electrodes for Vehicular Applications

    SciTech Connect (OSTI)

    Dillon, A. C.

    2012-01-01T23:59:59.000Z

    Significant advances in both energy density and rate capability for Li-ion batteries are necessary for implementation in electric vehicles. We have employed two different methods to improve the rate capability of high capacity electrodes. For example, we previously demonstrated that thin film high volume expansion MoO{sub 3} nanoparticle electrodes ({approx}2 {micro}m thick) have a stable capacity of {approx}630 mAh/g, at C/2 (charge/dicharge in 2 hours). By fabricating thicker conventional electrodes, an improved reversible capacity of {approx}1000 mAh/g is achieved, but the rate capability decreases. To achieve high-rate capability, we applied a thin Al{sub 2}O{sub 3} atomic layer deposition coating to enable the high volume expansion and prevent mechanical degradation. Also, we recently reported that a thin ALD Al{sub 2}O{sub 3} coating can enable natural graphite (NG) electrodes to exhibit remarkably durable cycling at 50 C. Additionally, Al{sub 2}O{sub 3} ALD films with a thickness of 2 to 4 {angstrom} have been shown to allow LiCoO{sub 2} to exhibit 89% capacity retention after 120 charge-discharge cycles performed up to 4.5 V vs. Li/Li{sup +}. Capacity fade at this high voltage is generally caused by oxidative decomposition of the electrolyte or cobalt dissolution. We have recently fabricated full cells of NG and LiCoO{sub 2} and coated both electrodes, one or the other electrode as well as neither electrode. In creating these full cells, we observed some surprising results that lead us to obtain a greater understanding of the ALD coatings. In a different approach we have employed carbon single-wall nanotubes (SWNTs) to synthesize binder-free, high-rate capability electrodes, with 95 wt.% active materials. In one case, Fe{sub 3}O{sub 4} nanorods are employed as the active storage anode material. Recently, we have also employed this method to demonstrate improved conductivity and highly improved rate capability for a LiNi{sub 0.4}Mn{sub 0.4}Co{sub 0.2}O{sub 2} cathode material. Raman spectroscopy was employed to understand how the SWNTs function as a highly flexible conductive additive.

  17. Ultrasound-Guided Three-In-One Nerve Block for Femur Fractures

    E-Print Network [OSTI]

    Christos, Steve C; Chiampas, George; Offman, Ryan; Rifenburg, Robert

    2010-01-01T23:59:59.000Z

    guidance in regional anesthesia. Br J Anesth. 2005; 94:7-17.provides rapid, effective anesthesia and has also been shownthree-in-one blocks. Anesthesia and Analgesia. 1997; Snoeck

  18. 2008 NMMSS Users Training Meeting | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    BR-0006 and NUREGBR-0007 (Brian Horn) 67 KB Revision of ANSI N15.8 "Nuclear Material Control Systems for Nuclear Power Plants (Thomas Morello) 212.89 KB Ownership Codes (Pete...

  19. Catalytic H2O2 decomposition on palladium surfaces

    E-Print Network [OSTI]

    Salinas, S. Adriana

    1998-01-01T23:59:59.000Z

    The catalytic decomposition of H?O? at smooth single-crystal and polycrystalline palladium surfaces that had been subjected to various surface modifications has been studied. Monolayer and submonolayer coverages of I, Br and Cl adsorbates were used...

  20. Utilizing novel diversity estimators to quantify multiple dimensions of microbial biodiversity across domains

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    1, Env-2, Env-3) and two bioreactor samples were sequencedEnv-2 and Env-4) and three bioreactor samples were sequencedmore diverse than bioreactor (BR) biofilms? H1: Bioreactor