Sample records for yields unprecedented performance

  1. Performance on an episodic encoding task yields further insight into functional brain development

    E-Print Network [OSTI]

    Performance on an episodic encoding task yields further insight into functional brain development August 2006 To further characterize changes in functional brain development that are associated in the direction predicted by the endpoint analysis. We conclude that the patterns of brain activation associated

  2. Unprecedented detail of intact neuronal receptor offers blueprint...

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

    Argonne, Ill.- Scientists succeeded in obtaining an unprecedented view of a type of brain-cell receptor that is implicated in a range of neurological illnesses, including...

  3. FOCUSED R&D FOR ELECTROCHROMIC SMART WINDOWS: SIGNIFICANT PERFORMANCE AND YIELD ENHANCEMENTS

    SciTech Connect (OSTI)

    Marcus Milling

    2004-09-23T23:59:59.000Z

    Developments made under this program will play a key role in underpinning the technology for producing EC devices. It is anticipated that the work begun during this period will continue to improve materials properties, and drive yields up and costs down, increase durability and make manufacture simpler and more cost effective. It is hoped that this will contribute to a successful and profitable industry, which will help reduce energy consumption and improve comfort for building occupants worldwide. The first major task involved improvements to the materials used in the process. The improvements made as a result of the work done during this project have contributed to the enhanced performance, including dynamic range, uniformity and electrical characteristics. Another major objective of the project was to develop technology to improve yield, reduce cost, and facilitate manufacturing of EC products. Improvements directly attributable to the work carried out as part of this project and seen in the overall EC device performance, have been accompanied by an improvement in the repeatability and consistency of the production process. Innovative test facilities for characterizing devices in a timely and well-defined manner have been developed. The equipment has been designed in such a way as to make scaling-up to accommodate higher throughput necessary for manufacturing relatively straightforward. Finally, the third major goal was to assure the durability of the EC product, both by developments aimed at improving the product performance, as well as development of novel procedures to test the durability of this new product. Both aspects have been demonstrated, both by carrying out a number of different durability tests, both in-house and by independent third-party testers, and also developing several novel durability tests.

  4. Earth'sFuture Multidecadal global cooling and unprecedented ozone loss

    E-Print Network [OSTI]

    Robock, Alan

    Earth'sFuture Multidecadal global cooling and unprecedented ozone loss following a regional nuclear inertia and albedo effects in the ocean and expanded sea ice. The combined cooling and enhanced UV would put significant pressures on global food supplies and could trigger a global nuclear famine. Knowledge

  5. Unprecedented studies of the low-energy negatively charged kaons interactions in nuclear matter by AMADEUS

    E-Print Network [OSTI]

    C. Curceanu; K. Piscicchia; M. Bazzi; C. Berucci; D. Bosnar; A. M. Bragadireanu; A. Clozza; M. Cargnelli; A. D'uffizi; L. Fabbietti; C. Fiorini; F. Ghio; C. Guaraldo; M. Iliescu; P. Levi Sandri; J. Marton; D. Pietreanu; M. Poli Lener; R. Quaglia; A. Romero Vidal; E. Sbardella; A. Scordo; H. Shi; D. Sirghi; F. Sirghi; M. Skurzok; I. Tucakovic; O. Vazquez Doce; E. Widmann; J. Zmeskal

    2015-01-23T23:59:59.000Z

    The AMADEUS experiment aims to provide unique quality data of $K^-$ hadronic interactions in light nuclear targets, in order to solve fundamental open questions in the non-perturbative strangeness QCD sector, like the controversial nature of the $\\Lambda(1405)$ state, the yield of hyperon formation below threshold, the yield and shape of multi-nucleon $K^-$ absorption, processes which are intimately connected to the possible existence of exotic antikaon multi-nucleon clusters. AMADEUS takes advantage of the DA$\\Phi$NE collider, which provides a unique source of monochromatic low-momentum kaons and exploits the KLOE detector as an active target, in order to obtain excellent acceptance and resolution data for $K^-$ nuclear capture on H, ${}^4$He, ${}^{9}$Be and ${}^{12}$C, both at-rest and in-flight. During the second half of 2012 a successful data taking was performed with a dedicated pure carbon target implemented in the central region of KLOE, providing a high statistic sample of pure at-rest $K^-$ nuclear interactions. For the future dedicated setups involving cryogenic gaseous targets are under preparation.

  6. Unprecedented studies of the low-energy negatively charged kaons interactions in nuclear matter by AMADEUS

    E-Print Network [OSTI]

    Curceanu, C; Bazzi, M; Berucci, C; Bosnar, D; Bragadireanu, A M; Clozza, A; Cargnelli, M; D'uffizi, A; Fabbietti, L; Fiorini, C; Ghio, F; Guaraldo, C; Iliescu, M; Sandri, P Levi; Marton, J; Pietreanu, D; Lener, M Poli; Quaglia, R; Vidal, A Romero; Sbardella, E; Scordo, A; Shi, H; Sirghi, D; Sirghi, F; Skurzok, M; Tucakovic, I; Doce, O Vazquez; Widmann, E; Zmeskal, J

    2015-01-01T23:59:59.000Z

    The AMADEUS experiment aims to provide unique quality data of $K^-$ hadronic interactions in light nuclear targets, in order to solve fundamental open questions in the non-perturbative strangeness QCD sector, like the controversial nature of the $\\Lambda(1405)$ state, the yield of hyperon formation below threshold, the yield and shape of multi-nucleon $K^-$ absorption, processes which are intimately connected to the possible existence of exotic antikaon multi-nucleon clusters. AMADEUS takes advantage of the DA$\\Phi$NE collider, which provides a unique source of monochromatic low-momentum kaons and exploits the KLOE detector as an active target, in order to obtain excellent acceptance and resolution data for $K^-$ nuclear capture on H, ${}^4$He, ${}^{9}$Be and ${}^{12}$C, both at-rest and in-flight. During the second half of 2012 a successful data taking was performed with a dedicated pure carbon target implemented in the central region of KLOE, providing a high statistic sample of pure at-rest $K^-$ nuclear i...

  7. The 2010 Deepwater Horizon (DH) oil spill in the Gulf of Mexico was unprecedented in both its magnitude --nearly 5

    E-Print Network [OSTI]

    Entekhabi, Dara

    PROBLEM The 2010 Deepwater Horizon (DH) oil spill in the Gulf of Mexico was unprecedented in both of Mexico during the Deepwater Horizon oil spill. This satellite image shows the oil slick off its magnitude -- nearly 5 million barrels of oil spilled over nearly three months -- and its location

  8. Variable dimensionality in the uranium fluoride/2-methyl-piperazine system: Synthesis and structures of UFO-5, -6, and -7; Zero-, one-, and two-dimensional materials with unprecedented topologies

    SciTech Connect (OSTI)

    Francis, R.J.; Halasyamani, P.S.; Bee, J.S.; O'Hare, D.

    1999-02-24T23:59:59.000Z

    Recently, low temperature (T < 300 C) hydrothermal reactions of inorganic precursors in the presence of organic cations have proven highly productive for the synthesis of novel solid-state materials. Interest in these materials is driven by the astonishingly diverse range of structures produced, as well as by their many potential materials chemistry applications. This report describes the high yield, phase pure hydrothermal syntheses of three new uranium fluoride phases with unprecedented structure types. Through the systematic control of the synthesis conditions the authors have successfully controlled the architecture and dimensionality of the phase formed and selectively synthesized novel zero-, one-, and two-dimensional materials.

  9. Estimating Corn Grain Yields

    E-Print Network [OSTI]

    Blumenthal, Jurg M.; Thompson, Wayne

    2009-06-12T23:59:59.000Z

    can collect samples from a corn field and use this data to calculate the yield estimate. An interactive grain yield calculator is provided in the Appendix of the pdf version of this publication. The calculator is also located in the publication.... Plan and prepare for sample and data collection. 2. Collect field samples and record data. 3. Analyze the data using the interactive grain yield calculator in the Appendix. Plan and prepare for sample and data collection Predetermine sample locations...

  10. ith our country facing unprecedented economic challenges, the need to invest in drivers of long-term growth has never been greater. The Obama Administra-

    E-Print Network [OSTI]

    Narasayya, Vivek

    W ith our country facing unprecedented economic challenges, the need to invest in drivers of long--from healthcare and edu- cation to energy independence and climate change. Information technology (IT to work together to create new economic opportunities and address our country's most pressing challenges

  11. A versatile detector for total fluorescence and electron yield experiments

    SciTech Connect (OSTI)

    Thielemann, N. [Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany); Institut fuer Physik, Humboldt-Universitaet zu Berlin, Newtonstrasse 15, 12489 Berlin (Germany); Hoffmann, P. [Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany); Foehlisch, A. [Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany); Institut fuer Physik und Astronomie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam (Germany)

    2012-09-15T23:59:59.000Z

    The combination of a non-coated silicon photodiode with electron repelling meshes makes a versatile detector for total fluorescence yield and electron yield techniques highly suitable for x-ray absorption spectroscopy. In particular, a copper mesh with a bias voltage allows to suppress or transmit the electron yield signal. The performance of this detection scheme has been characterized by near edge x-ray absorption fine structure studies of thermal oxidized silicon and sapphire. The results show that the new detector probes both electron yield and for a bias voltage exceeding the maximum photon energy the total fluorescence yield.

  12. A Computational Study of Feeding Rules and Yield Improvement Techniques

    E-Print Network [OSTI]

    Beckermann, Christoph

    A Computational Study of Feeding Rules and Yield Improvement Techniques Christoph Beckermann improvement techniques is presented. The computer simulations were performed using a commercial solidification chills (termed passive methods), and active heating and cooling are presented and compared. The benefits

  13. Yield

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

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

  14. Status of fission yield evaluations

    SciTech Connect (OSTI)

    England, T.R.; Rider, B.F.

    1983-01-01T23:59:59.000Z

    Very few yield compilations are also evaluations, and very few contain an extensive global library of measured data and extensive models for unmeasured data. The earlier U.K. evaluations and US evaluations were comparable up to the retirements of the primary evaluators. Only the effort in the US has been continued and expanded. The previous U.K. evaluations have been published. In this paper we summarize the current status of the US evaluation, philosophy, and various integral yield tests for 34 fissioning nuclides at one or more neutron incident energies and/or for spontaneous fission. Currently there are 50 yield sets and for each we have independent and cumulative yields and uncertainties for approximately 1100 fission products. When finalized, the recommended data will become part of the next version of the US Evaluated Nuclear Data File (ENDF/B-VI). The complete set of data, including the basic input of measured yields, will be issued as a sequel to the General Electric evaluation reports (better known by the authors' names: Rider - or earlier - Meek and Rider). 16 references.

  15. The Air-Fluorescence Yield

    E-Print Network [OSTI]

    F. Arqueros; F. Blanco; D. Garcia-Pinto; M. Ortiz; J. Rosado

    2008-07-30T23:59:59.000Z

    Detection of the air-fluorescence radiation induced by the charged particles of extensive air showers is a well-established technique for the study of ultra-high energy cosmic rays. Fluorescence telescopes provide a nearly calorimetric measure of the primary energy. Presently the main source of systematic uncertainties comes from our limited accuracy in the fluorescence yield, that is, the number of fluorescence photons emitted per unit of energy deposited in the atmosphere by the shower particles. In this paper the current status of our knowledge on the fluorescence yield both experimental an theoretical will be discussed.

  16. UNCONVENTIONAL METHODS FOR YIELD IMPROVEMENT

    E-Print Network [OSTI]

    Beckermann, Christoph

    methods (active heating and cooling, directional solidifi- cation) Novel yield improvement techniques through a vari- ety of active heating and cooling schemes. It is envisioned that the techniques will allow techniques for decreasing the size and number of risers re- quired to produce quality castings

  17. Statistical Performance Modeling of SRAMs

    E-Print Network [OSTI]

    Zhao, Chang

    2011-02-22T23:59:59.000Z

    Yield analysis is a critical step in memory designs considering a variety of performance constraints. Traditional circuit level Monte-Carlo simulations for yield estimation of Static Random Access Memory (SRAM) cell is quite time consuming due...

  18. An Unprecedented Constraint on Water Content in the Sunlit Lunar Exosphere Seen by Lunar-Based Ultraviolet Telescope of Chang'e-3 Mission

    E-Print Network [OSTI]

    Wang, J; Qiu, Y L; Meng, X M; Cai, H B; Cao, L; Deng, J S; Han, X H; Wei, J Y

    2015-01-01T23:59:59.000Z

    The content of $\\mathrm{OH/H_2O}$ molecules in the tenuous exosphere of the Moon is still an open issue at present. We here report an unprecedented upper limit of the content of the OH radicals, which is obtained from the in-situ measurements carried out \\rm by the Lunar-based Ultraviolet Telescope, a payload of Chinese Chang'e-3 mission. By analyzing the diffuse background in the images taken by the telescope, the column density and surface concentration of the OH radicals are inferred to be $<10^{11}\\ \\mathrm{cm^{-2}}$ and $<10^{4}\\ \\mathrm{cm^{-3}}$ (by assuming a hydrostatic equilibrium with a scale height of 100km), respectively, by assuming that the recorded background is fully contributed by their resonance fluorescence emission. The resulted concentration is lower than the previously reported value by about two orders of magnitude, and is close to the prediction of the sputtering model. In addition, the same measurements and method allow us to derive a surface concentration of $<10^{2}\\ \\math...

  19. Data Transfer Nodes Yield Results!

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

    time. In fact, we recently moved an 80 terabyte dataset from the high performance storage system at Oak Ridge to NERSC in just two months, without the DTNs this would have taken...

  20. Global Economy and IT IT: Recovery and Growth Government and IT IT and Society Strengthening Economies Innovation in information technology (IT) has fueled unprecedented economic gains in the last 30

    E-Print Network [OSTI]

    Narasayya, Vivek

    Global Economy and IT IT: Recovery and Growth Government and IT IT and Society Strengthening Economies Innovation in information technology (IT) has fueled unprecedented economic gains in the last 30-term stimulus to local economies but also position both developed and developing economies to compete

  1. Determination of thermal neutron capture gamma yields

    E-Print Network [OSTI]

    Harper, Thomas Lawrence

    1969-01-01T23:59:59.000Z

    A method of analysing Ge(Li) thermal neutron capture gamma spectra to obtain total gamma yields has been developed. Tie method determines both the yields from the well resolved gamma peaks in a spectrum as well as the gamma ...

  2. Determination of thermal neutron capture gamma yields.

    E-Print Network [OSTI]

    Harper, Thomas Lawrence

    1969-01-01T23:59:59.000Z

    A method of analysing Ge(Li) thermal neutron capture gamma spectra to obtain total gamma yields has been developed. Tie method determines both the yields from the well resolved gamma peaks in a spectrum as well as the gamma ...

  3. Yield criteria for quasibrittle and frictional materials

    E-Print Network [OSTI]

    Davide Bigoni; Andrea Piccolroaz

    2010-10-09T23:59:59.000Z

    A new yield/damage function is proposed for modelling the inelastic behaviour of a broad class of pressure-sensitive, frictional, ductile and brittle-cohesive materials. The yield function allows the possibility of describing a transition between the shape of a yield surface typical of a class of materials to that typical of another class of materals. This is a fundamental key to model the behaviour of materials which become cohesive during hardening (so that the shape of the yield surface evolves from that typical of a granular material to that typical of a dense material), or which decrease cohesion due to damage accumulation. The proposed yield function is shown to agree with a variety of experimental data relative to soil, concrete, rock, metallic and composite powders, metallic foams, porous metals, and polymers. The yield function represents a single, convex and smooth surface in stress space approaching as limit situations well-known criteria and the extreme limits of convexity in the deviatoric plane. The yield function is therefore a generalization of several criteria, including von Mises, Drucker-Prager, Tresca, modified Tresca, Coulomb-Mohr, modified Cam-clay, and --concerning the deviatoric section-- Rankine and Ottosen. Convexity of the function is proved by developing two general propositions relating convexity of the yield surface to convexity of the corresponding function. These propositions are general and therefore may be employed to generate other convex yield functions.

  4. TIF film, substrates and nonfumigant soil disinfestation maintain fruit yields

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    soil disinfestation maintain fruit yields Steve Fennimore bystrawberry production sea- son, fruit yields on substrateswere com- parable to fruit yields using conventional

  5. Revenue impacts of airline yield management

    E-Print Network [OSTI]

    Mak, Chung Yu

    1992-01-01T23:59:59.000Z

    In the highly competitive airline industry today, Yield or Revenue Management is extremely important to the survival of any carrier. Since fares are generally matched by all carriers to be competitive, the ability of an ...

  6. Yield Stress Materials in Soft Condensed Matter

    E-Print Network [OSTI]

    Daniel Bonn; Jose Paredes; Morton M. Denn; Ludovic Berthier; Thibaut Divoux; Sébastien Manneville

    2015-02-18T23:59:59.000Z

    We present a comprehensive review of the physical behavior of yield stress materials in soft condensed matter, which encompasses a broad range of soft materials from colloidal assemblies and gels to emulsions and non-Brownian suspensions. All these disordered materials display a nonlinear response to an external mechanical forcing, which results from the existence of a finite force threshold for flow to occur, the yield stress. We discuss both the physical origin and the rheological consequences associated with this nonlinear behavior. We give an overview of the different experimental techniques developed to measure the yield stress. We discuss extensively the recent progress concerning a microscopic description of the flow dynamics of yield stress materials, emphasizing in particular the role played by relaxation timescales, the interplay between shear flow and aging behavior, the existence of inhomogeneous shear flows and shear bands, wall slip, and non-local effects in confined geometries. We finally review the status of modeling of the shear rheology of yield stress materials in the framework of continuum mechanics.

  7. Original article Enhancement of yield and persistence

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    endophyte isolate in France Catherine Ravela François Balfouriera Jean Jacques Guillauminb aUnité d March 1999; accepted 6 July 1999) Abstract - The contribution of Neotyphodium endophytes the yield and persistence of three endophyte-infected (E.I.) and endophyte-free (E.F.) perennial ryegrass

  8. Yield learning model for integrated circuit package

    E-Print Network [OSTI]

    Balasubramaniam, Gaurishankar

    1996-01-01T23:59:59.000Z

    , the Plastic Quad Flat Pack and the Ceramic Ball Grid Array at IBM, and the Plastic Ball Grid Array at Motorola. This model has been used as a management toot for making yield predictions, resource allocations, understanding operating practices and provide what...

  9. Yield stress and elastic modulus of suspensions of noncolloidal particles in yield stress fluids

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    this yield stress; above the yield stress they behave as liquids, and their flow behavior is usually well more complex at the approach of the transition between the liquid and the solid regimes [Coussot (2005 and Jorrot (2001)], a cement paste [Geiker et al. (2002)], a foam [Cohen-Addad et al. (2007)] or coal

  10. Excitation-emission spectra and fluorescence quantum yields for...

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

    Excitation-emission spectra and fluorescence quantum yields for fresh and aged biogenic secondary organic aerosols. Excitation-emission spectra and fluorescence quantum yields for...

  11. Laser Seeding Yields High-Power Coherent Terahertz Radiation

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

    Laser Seeding Yields High-Power Coherent Terahertz Radiation Laser Seeding Yields High-Power Coherent Terahertz Radiation Print Wednesday, 25 April 2007 00:00 Researchers at...

  12. Effects of No-Till on Yields as Influenced by Crop and Environmental Factors

    SciTech Connect (OSTI)

    Toliver, Dustin K.; Larson, James A.; Roberts, Roland K.; English, B.C.; De La Torre Ugarte, D. G.; West, Tristram O.

    2012-02-07T23:59:59.000Z

    Th is research evaluated diff erences in yields and associated downside risk from using no-till and tillage practices. Yields from 442 paired tillage experiments across the United States were evaluated with respect to six crops and environmental factors including geographic location, annual precipitation, soil texture, and time since conversion from tillage to no-till. Results indicated that mean yields for sorghum [Sorghum bicolor (L.) Moench] and wheat (Triticum aestivum L.) with no-till were greater than with tillage. In addition, no-till tended to produce similar or greater mean yields than tillage for crops grown on loamy soils in the Southern Seaboard and Mississippi Portal regions. A warmer and more humid climate and warmer soils in these regions relative to the Heartland, Basin and Range, and Fruitful Rim regions appear to favor no-till on loamy soils. With the exception of corn (Zea mays L.) and cotton (Gossypium hirsutum L.) in the Southern Seaboard region, no-till performed poorly on sandy soils. Crops grown in the Southern Seaboard were less likely to have lower no-till yields than tillage yields on loamy soils and thus had lower downside yield risk than other farm resource regions. Consistent with mean yield results, soybean [Glycine max (L.) Merr.] and wheat grown on sandy soils in the Southern Seaboard region using no-till had larger downside yield risks than when produced with no-till on loamy soils. Th e key fi ndings of this study support the hypothesis that soil and climate factors impact no-till yields relative to tillage yields and may be an important factor infl uencing risk and expected return and the adoption of the practice by farmers.

  13. Low Odor, High Yield Kraft Pulping

    SciTech Connect (OSTI)

    W.T. McKean

    2000-12-15T23:59:59.000Z

    In laboratory cooks pure oxygen was profiled into the circulation line of a batch digester during two periods of the cooking cycle: The first injection occurred during the heating steps for the purpose of in-situ generation of polysulfide. This chip treatment was studied to explore stabilization against alkaline induced carbohydrate peeling and to increase pulp yield. Under optimum conditions small amounts of polysulfide were produced with yield increase of about 0.5% These increases fell below earlier reports suggesting that unknown differences in liquor composition may influence the relative amounts of polysulfide and thiosulfate generated during the oxidation. Consequently, further studies are required to understand the factors that influence the ratios of those two sulfur species.

  14. Stellar Yields of Rotating First Stars. I. Yields of Weak Supernovae and Abundances of Carbon-enhanced Hyper Metal Poor Stars

    E-Print Network [OSTI]

    Takahashi, Koh; Yoshida, Takashi

    2014-01-01T23:59:59.000Z

    We perform stellar evolution simulation of first stars and calculate stellar yields from the first supernovae. The initial masses are taken from 12 to 140 Msun to cover the whole range of core-collapse supernova progenitors, and stellar rotation is included, which results in efficient internal mixing. A weak explosion is assumed in supernova yield calculations, thus only outer distributed matter, which is not affected by the explosive nucleosynthesis, is ejected in the models. We show that the initial mass and the rotation affect the explosion yield. All the weak explosion models have abundances of [C/O] larger than unity. Stellar yields from massive progenitors of > 40-60 Msun show enhancement of Mg and Si. Rotating models yield abundant Na and Al. And Ca is synthesized in non-rotating heavy massive models of > 80 Msun. We fit the stellar yields to the three most iron-deficient stars, and constrain the initial parameters of the mother progenitor stars. The abundance pattern in SMSS 0313-6708 is well explaine...

  15. Kuwaiti reconstruction project unprecedented in size, complexity

    SciTech Connect (OSTI)

    Tippee, B.

    1993-03-15T23:59:59.000Z

    There had been no challenge like it: a desert emirate ablaze; its main city sacked; the economically crucial oil industry devastated; countryside shrouded in smoke from oil well fires and littered with unexploded ordnance, disabled military equipment, and unignited crude oil. Like the well-documented effort that brought 749 burning wells under control in less than 7 months, Kuwaiti reconstruction had no precedent. Unlike the firefight, reconstruction is no-where complete. It nevertheless has placed two of three refineries back on stream, restored oil production to preinvasion levels, and repaired or rebuilt 17 of 26 oil field gathering stations. Most of the progress has come since the last well fire went out on Nov. 6, 1991. Expatriates in Kuwait since the days of Al-Awda- the return,' in Arabic- attribute much of the rapid progress under Al-Tameer- the reconstruction'- to decisions and preparations made while the well fires still raged. The article describes the planning for Al-Awda, reentering the country, drilling plans, facilities reconstruction, and special problems.

  16. Elastic strain engineering for unprecedented materials properties

    E-Print Network [OSTI]

    Li, Ju

    “Smaller is stronger.” Nanostructured materials such as thin films, nanowires, nanoparticles, bulk nanocomposites, and atomic sheets can withstand non-hydrostatic (e.g., tensile or shear) stresses up to a significant ...

  17. Unprecedented Press Attack on WSG Emblem

    E-Print Network [OSTI]

    Journal:  Wader Study Group Bulletin Attachment Size p00040-p00040.pdf 145.38 KB Issue:  38 Year:  1983 Pages:  40

  18. 2007 DRY BEAN YIELD TRIALS J.D. Kelly, B. Long, N. Blakely, E. Wright, and J. Heilig

    E-Print Network [OSTI]

    Performance Nurseries. All yield trials at Saginaw were direct harvested, except vine cranberry and bush tebo tests. The large-seeded kidney, cranberry and white mold trials at Montcalm were rod-pulled. The yield and regional test that includes pinto, GN, red and pinks; and 16-entry vine cranberry test. At Montcalm

  19. Can Naked Singularities Yield Gamma Ray Bursts?

    E-Print Network [OSTI]

    H. M. Antia

    1998-07-09T23:59:59.000Z

    Gamma-ray bursts are believed to be the most luminous objects in the Universe. There has been some suggestion that these arise from quantum processes around naked singularities. The main problem with this suggestion is that all known examples of naked singularities are massless and hence there is effectively no source of energy. It is argued that a globally naked singularity coupled with quantum processes operating within a distance of the order of Planck length of the singularity will probably yield energy burst of the order of M_pc^2\\approx2\\times 10^{16} ergs, where M_p is the Planck mass.

  20. Potential Yield Mapping of Dedicated Energy Crops

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309 Reviewers | DepartmentSiteMaryland | Yield Mapping of

  1. Yield improvement and defect reduction in steel casting

    SciTech Connect (OSTI)

    Kent Carlson

    2004-03-16T23:59:59.000Z

    This research project investigated yield improvement and defect reduction techniques in steel casting. Research and technology development was performed in the following three specific areas: (1) Feeding rules for high alloy steel castings; (2) Unconventional yield improvement and defect reduction techniques--(a) Riser pressurization; and (b) Filling with a tilting mold; and (3) Modeling of reoxidation inclusions during filling of steel castings. During the preparation of the proposal for this project, these areas were identified by the High Alloy Committee and Carbon and Low Alloy Committee of the Steel Founders' Society of America (SFSA) as having the highest research priority to the steel foundry industry. The research in each of the areas involved a combination of foundry experiments, modeling and simulation. Numerous SFSA member steel foundries participated in the project through casting trials and meetings. The technology resulting from this project will result in decreased scrap and rework, casting yield improvement, and higher quality steel castings produced with less iteration. This will result in considerable business benefits to steel foundries, primarily due to reduced energy and labor costs, increased capacity and productivity, reduced lead-time, and wider use and application of steel castings. As estimated using energy data provided by the DOE, the technology produced as a result of this project will result in an energy savings of 2.6 x 10{sup 12} BTU/year. This excludes the savings that were anticipated from the mold tilting research. In addition to the energy savings, and corresponding financial savings this implies, there are substantial environmental benefits as well. The results from each of the research areas listed above are summarized.

  2. Ashland's new process could boost gasoline yield

    SciTech Connect (OSTI)

    Atkins, O.E.

    1980-04-07T23:59:59.000Z

    According to O. E. Atkins (Ashland Oil Co.), Ashland's new fluid catalytic cracking process will convert heavy residual oil to (% by vol) 11% fuel gas, 4.8% LNG, 75.7% gasoline (if all the produced olefins are converted to gasoline), 9% distillates, and 8.1% heavy fuel oil. Ashland is building a $70 million, 40,000 bbl/day unit at its 215,000 bbl/day Catlettsburg, Ky., refinery which will increase the present 90,000 bbl/day gasoline yield by 25,000 bbl/day for the same amount of feedstock. The increased gasoline yield (no-lead octane rating of 94) is expected to increase the net margin on a barrel of feed from $8 up to $12, at the present prices of $11.50/bbl of residual oil and $40/bbl of gasoline. Ashland has not disclosed detailed information on the new process, which: can accommodate atmospheric residua that are high in sulfur and metals; is a high temperature, low (about 1 atm) pressure process; does not use hydrogen; uses a proprietary new crystalline silica-alumina microspherical (zeolite) catalyst which, via a proprietary passivating technique, will demetalize crude oil fractions of vanadium and nickel. Residuum cracking processes developed by other companies are briefly discussed.

  3. DETERMINING THE RATIO OF THE H+ YIELDS TV TO H+ YIELDS TB DECAY RATES FOR LARGE TAN BETA AT THE LARGE HADRON COLLIDER.

    SciTech Connect (OSTI)

    ASSAMAGAN,K.A.GUASCH,J.MORETTI,S.PENARANDA,S.

    2003-05-27T23:59:59.000Z

    We present results on the determination of the observable ratio R = BR(H{sup +} {yields} {tau}{sup +}{nu}{sup -})/BR(H{sup +} {yields} t{bar b}) of charged Higgs boson decay rates as a discriminant quantity between Supersymmetric and non-Supersymmetric models. Simulation of measurements of this quantity through the analysis of the charged Higgs production process gb {yields} tbH{sup +} and relative backgrounds in the two above decay channels has been performed in the context of ATLAS. A {approx} 12-14% accuracy on R can be achieved for tan {beta} = 50, m{sub H{sup {+-}}} = 300-500 GeV and after an integrated luminosity of 300 fb{sup -1}. With this precision measurement, the Large Hadron Collider (LHC) can easily discriminate between models for the two above scenarios, so long as tan {beta} > 20.

  4. Exploiting Historical Data and Diverse Germplasm to Increase Maize Grain Yield in Texas

    E-Print Network [OSTI]

    Barrero Farfan, Ivan D.

    2013-06-25T23:59:59.000Z

    ..................................................................................................................... 7 Drought stress and lipid peroxidation ........................................................................ 8 Production of ROS species during drought stress and scavenging mechanisms ....... 9 Role of lipoxygenases in drought stress... for the top five hybrids per year tested in the Texas AgriLife Corn Performance trials from 2000 to 2010 .......................... 44 3.7. Genotypic BLUPs for grain yield for all the hybrids tested in the High Plains...

  5. Precise Measurement of the Absolute Yield of Fluorescence Photons in Atmospheric Gases

    SciTech Connect (OSTI)

    Ave, M.; /Karlsruhe, Inst. Technol.; Bohacova, M.; /Chicago U., EFI; Daumiller, K.; /Karlsruhe, Inst. Technol.; Di Carlo, P.; /INFN, Aquila; Di Giulio, C.; /INFN, Rome; Luis, P.Facal San; /Chicago U., EFI; Gonzales, D.; /Karlsruhe U., EKP; Hojvat, C.; /Fermilab; Horandel, J.R.; /Nijmegen U., IMAPP; Hrabovsky, M.; /Palacky U.; Iarlori, M.; /INFN, Aquila /Karlsruhe, Inst. Technol.

    2011-01-01T23:59:59.000Z

    We have performed a measurement of the absolute yield of fluorescence photons at the Fermilab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected.

  6. Fusion yield: Guderley model and Tsallis statistics

    E-Print Network [OSTI]

    Haubold, H J

    2010-01-01T23:59:59.000Z

    The reaction rate probability integral is extended from Maxwell-Boltzmann approach to a more general approach by using the pathway model introduced by Mathai [Mathai A.M.:2005, A pathway to matrix-variate gamma and normal densities, Linear Algebra and Its Applications}, 396, 317-328]. The extended thermonuclear reaction rate is obtained in closed form via a Meijer's G-function and the so obtained G-function is represented as a solution of a homogeneous linear differential equation. A physical model for the hydrodynamical process in a fusion plasma compressed and laser-driven spherical shock wave is used for evaluating the fusion energy integral by integrating the extended thermonuclear reaction rate integral over the temperature. The result obtained is compared with the standard fusion yield obtained by Haubold and John in 1981.[Haubold, H.J. and John, R.W.:1981, Analytical representation of the thermonuclear reaction rate and fusion energy production in a spherical plasma shock wave, Plasma Physics, 23, 399-...

  7. Solvent dehydration system cuts energy use, improves dewaxed oil yield

    SciTech Connect (OSTI)

    Scalise, J.M.; Button, H.O.; Graves, D.C.

    1984-08-27T23:59:59.000Z

    A recent development can be applied in solvent dewaxing plants to reduce energy requirements, simplify operations, reduce maintenance, improve oil yields, and offer capacity gains. Known as the Nofsinger Solvent Dehydration System, this development is being successfully utilized by Ashland Oil Inc. in its Catlettsburg, Ky., refinery to achieve several of these goals. A net savings of approximately $490,000/year was calculated at design throughput. This yields a return on investment of approximately 20% without consideration of any yield effects. Improvements in yield were not included because simultaneous design changes in the unit did not permit Ashland to quantify any yield savings that may have occurred.

  8. Weather-based forecasts of California crop yields

    SciTech Connect (OSTI)

    Lobell, D B; Cahill, K N; Field, C B

    2005-09-26T23:59:59.000Z

    Crop yield forecasts provide useful information to a range of users. Yields for several crops in California are currently forecast based on field surveys and farmer interviews, while for many crops official forecasts do not exist. As broad-scale crop yields are largely dependent on weather, measurements from existing meteorological stations have the potential to provide a reliable, timely, and cost-effective means to anticipate crop yields. We developed weather-based models of state-wide yields for 12 major California crops (wine grapes, lettuce, almonds, strawberries, table grapes, hay, oranges, cotton, tomatoes, walnuts, avocados, and pistachios), and tested their accuracy using cross-validation over the 1980-2003 period. Many crops were forecast with high accuracy, as judged by the percent of yield variation explained by the forecast, the number of yields with correctly predicted direction of yield change, or the number of yields with correctly predicted extreme yields. The most successfully modeled crop was almonds, with 81% of yield variance captured by the forecast. Predictions for most crops relied on weather measurements well before harvest time, allowing for lead times that were longer than existing procedures in many cases.

  9. Partial wave analysis of J/{psi}{yields}pp{pi}{sup 0}

    SciTech Connect (OSTI)

    Ablikim, M.; Bai, J. Z.; Bai, Y.; Cai, X.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chu, Y. P.; Deng, Z. Y.; Du, S. X.; Fang, J.; Fu, C. D.; Gao, C. S.; Gu, S. D.; Guo, Y. N.; He, K. L.; Heng, Y. K.; Hu, H. M. [Institute of High Energy Physics, Beijing 100049 (China)] (and others)

    2009-09-01T23:59:59.000Z

    Using a sample of 58 million J/{psi} events collected with the BESII detector at the BEPC, more than 100 000 J/{psi}{yields}pp{pi}{sup 0} events are selected, and a detailed partial wave analysis is performed. The branching fraction is determined to be Br(J/{psi}{yields}pp{pi}{sup 0})=(1.33{+-}0.02{+-}0.11)x10{sup -3}. A long-sought missing N*, first observed in J/{psi}{yields}pn{pi}{sup -}, is observed in this decay too, with mass and width of 2040{sub -4}{sup +3}{+-}25 MeV/c{sup 2} and 230{sub -8}{sup +8}{+-}52 MeV/c{sup 2}, respectively. Its spin-parity favors (3/2){sup +}. The masses, widths, and spin parities of other N* states are obtained as well.

  10. Performance Monitoring

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

    Optimization Performance Monitoring Performance Monitoring A redirector page has been set up without anywhere to redirect to. Last edited: 2014-08-25 14:37:27...

  11. B{yields}{pi}K puzzle and new physics

    SciTech Connect (OSTI)

    Baek, Seungwon; Hamel, Philippe; London, David; Datta, Alakabha; Suprun, Denis A. [Laboratoire Rene J.-A. Levesque, Universite de Montreal, C.P. 6128, succ. centre-ville, Montreal, QC, H3C 3J7 (Canada); Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada); Physics Department, Brookhaven National Laboratory, Upton, New York, USA, 11973 (United States)

    2005-03-01T23:59:59.000Z

    The present B{yields}{pi}K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B{yields}{pi}K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B{yields}{pi}K data can be accommodated by NP in the electroweak penguin sector.

  12. Strontium and barium iodide high light yield scintillators

    E-Print Network [OSTI]

    Cherepy, Nerine

    2008-01-01T23:59:59.000Z

    Strontium and barium iodide high light yield scintillators94720, USA Europium-doped strontium and barium iodide areis still chal­ lenging. Strontium and barium iodide doped

  13. Increasing Sugar Yields with IL-final-sm

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

    Ionic Liquid Processing Increasing sugar yields from diverse biomass feedstock with ionic liquid processing and cultivation of renewable ionic liquids Liberating Sugars from...

  14. Robust Diamond-Based RF Switch Yields Enhanced Communication...

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

    Robust Diamond-Based RF Switch Yields Enhanced Communication Capabilities Technology available for licesning: A radio frequency (RF) microelectromechanical system (MEMS) switch...

  15. Structures for Three Membrane Transport Proteins Yield Functional...

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

    Structures for Three Membrane Transport Proteins Yield Functional Insights Print Cells depend on contact with their outside environment in order to thrive. Two examples illustrate...

  16. Profitable Biodiesel Potential from Increased Agricultural Yields Country Name

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Profitable Biodiesel Potential from Increased Agricultural Yields Country Name Production Cost ($/liter) Potential Biodiesel Volume (liters) Total Export Profits ($) HDI Rank GDP/ cap Corrupt Rank FDI

  17. The role of carbon finance in enhancing building performance in developing countries

    E-Print Network [OSTI]

    Li, J.

    , most of them in DCs. The unprecedented urbanization in these countries poses a huge challenge for environment since most of buildings are built quickly and cheaply to accommodate new immigrants and the energy performance is often considered second... priority. Implementation of energy efficiency in buildings confronts both technical and institutional barriers. Enabling environmental sustainability buildings with economic benefits and welfare improvement is the major concerns on the policy agenda...

  18. Search for the decays J/{psi}{yields}{gamma}{rho}{phi} and J/{psi}{yields}{gamma}{rho}{omega}

    SciTech Connect (OSTI)

    Ablikim, M.; Bai, J. Z.; Cai, X.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chu, Y. P.; Deng, Z. Y.; Du, S. X.; Fang, J.; Fang, S. S.; Gao, C. S.; Gu, S. D.; Guo, Y. N.; He, K. L.; Heng, Y. K.; Hu, H. M.; Hu, T. [Institute of High Energy Physics, Beijing 100049 (China)] (and others)

    2008-01-01T23:59:59.000Z

    Using 58x10{sup 6} J/{psi} events collected with the Beijing Spectrometer (BESII) at the Beijing Electron-Positron Collider, the decays J/{psi}{yields}{gamma}{phi}{rho} and J/{psi}{yields}{gamma}{omega}{rho} are searched for, and upper limits on their branching fractions are reported at the 90% C.L. No clear structures are observed in the {gamma}{rho}, {gamma}{phi}, or {rho}{phi} mass spectra for J/{psi}{yields}{gamma}{phi}{rho} nor in the {gamma}{rho}, {gamma}{omega}, or {rho}{omega} mass spectra for J/{psi}{yields}{gamma}{omega}{rho}.

  19. Airline price discrimination: A practice of yield management or customer

    E-Print Network [OSTI]

    Twente, Universiteit

    Airline price discrimination: A practice of yield management or customer profiling? Rasha H.h.j.dierckx@student.utwente.nl ABSTRACT Prices of airline tickets frequently change, which is traditionally caused by yield management as price discrimination practice. In more recent times however, customer information is easily obtainable

  20. LIGHT-INDUCED CHANGES IN THE FLUORESCENCE YIELD OF

    E-Print Network [OSTI]

    Govindjee

    LIGHT-INDUCED CHANGES IN THE FLUORESCENCE YIELD OF CHLOROPHYLL a IN VIVO II. CHLORELLA PYRENOIDOSA in Chlorella pyrenoidosa consists of a fast rise of the fluorescence yield from the level S (of the first wave photophosphorylation. INTRODUCTION The long-term fluorescence induction in Chlorella pyrenoidosa (second wave

  1. Metabolic Engineering for Improved Biofuel Yield in a Marine

    E-Print Network [OSTI]

    Petta, Jason

    Metabolic Engineering for Improved Biofuel Yield in a Marine Cyanobacterium/conclusion · future work that will be done to increase biofuel yield #12;Problems? · Many na@al renewable source of energy -Biofuel produc@on from aqua@c photoautotroph

  2. Macroscopic yield criteria for plastic anisotropic materials containing spheroidal

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Macroscopic yield criteria for plastic anisotropic materials containing spheroidal voids Vincent-Leblond-Devaux's (GLD) analysis of an rigid-ideal plastic (von Mises) spheroidal volume containing a confocal spheroidal of the proposed approximate yield criterion for plastic anisotropic media containing non-spherical voids

  3. RESEARCH ARTICLE Climate change model predicts 33 % rice yield decrease

    E-Print Network [OSTI]

    Boyer, Edmond

    RESEARCH ARTICLE Climate change model predicts 33 % rice yield decrease in 2100 in Bangladesh parameters on rice. The effects of climate change on yield of a popular winter rice cultivar in Bangladesh online: 12 June 2012 # INRA and Springer-Verlag, France 2012 Abstract In Bangladesh, projected climate

  4. assessing yield optimization: Topics by E-print Network

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

    assessing yield optimization First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Sensitivity of Yield...

  5. The Effect of Sulphur on Yield of Certain Crops.

    E-Print Network [OSTI]

    Reynolds, E. B. (Elbert Brunner)

    1930-01-01T23:59:59.000Z

    . These small differences in sld are not regarded as significant. Sulphur did not increase the yield corn, ~vhich would indicate that the Lake Charles soils are not at ?sent deficient in sulphur. Table 8. Yield per acre of corn and cowpeas in experiment...

  6. Introducing the Canadian Crop Yield Forecaster Aston Chipanshi1

    E-Print Network [OSTI]

    Miami, University of

    for crop yield forecasting and risk analysis. Using the Census Agriculture Region (CAR) as the unit Climate Decision Support and Adaptation, Agriculture and Agri-Food Canada, 1011, Innovation Blvd, Saskatoon, SK S7V 1B7, Canada The Canadian Crop Yield Forecaster (CCYF) is a statistical modelling tool

  7. Performative architecture

    E-Print Network [OSTI]

    Araya, Sergio (Sergio Alejandro)

    2011-01-01T23:59:59.000Z

    The following thesis explores two central hypotheses. On the one hand it introduces the idea of performative architecture (performance in design), and has done so with the desire to contribute directly to the expansion of ...

  8. Search for B{sup +}{yields}X(3872)K{sup +}, X(3872){yields}J/{psi}{gamma}

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Bona, M.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France); Grauges, E. [Universitat de Barcelona, Facultat de Fisica Departamento ECM, E-08028 Barcelona (Spain); Palano, A. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Chen, J. C.; Qi, N. D.; Rong, G.; Wang, P.; Zhu, Y. S. [Institute of High Energy Physics, Beijing 100039 (China); Eigen, G.; Ofte, I.; Stugu, B. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway)] (and others)

    2006-10-01T23:59:59.000Z

    In a study of B{sup +}{yields}J/{psi}{gamma}K{sup +} decays, we find evidence for the radiative decay X(3872){yields}J/{psi}{gamma} with a statistical significance of 3.4{sigma}. We measure the product of branching fractions B(B{sup +}{yields}X(3872)K{sup +}){center_dot}B(X(3872){yields}J/{psi}{gamma})=(3.3{+-}1.0{+-}0.3)x10{sup -6}, where the uncertainties are statistical and systematic, respectively. We also measure the branching fraction B(B{sup +}{yields}{chi}{sub c1}K{sup +})=(4.9{+-}0.2{+-}0.4)x10{sup -4}. These results are obtained from (287{+-}3) million BB decays collected at the {upsilon}(4S) resonance with the BABAR detector at the PEP-II B Factory at SLAC.

  9. Fission Yield Measurements by Inductively Coupled Plasma Mass-Spectrometry

    SciTech Connect (OSTI)

    Irina Glagolenko; Bruce Hilton; Jeffrey Giglio; Daniel Cummings; Karl Grimm; Richard McKnight

    2009-11-01T23:59:59.000Z

    Correct prediction of the fission products inventory in irradiated nuclear fuels is essential for accurate estimation of fuel burnup, establishing proper requirements for spent fuel transportation and storage, materials accountability and nuclear forensics. Such prediction is impossible without accurate knowledge of neutron induced fission yields. Unfortunately, the accuracy of the fission yields reported in the ENDF/B-VII.0 library is not uniform across all of the data and much of the improvement is desired for certain isotopes and fission products. We discuss our measurements of cumulative fission yields in nuclear fuels irradiated in thermal and fast reactor spectra using Inductively Coupled Plasma Mass Spectrometry.

  10. Observation of J/{psi}{yields}3{gamma}

    SciTech Connect (OSTI)

    Adams, G. S.; Anderson, M.; Cummings, J. P.; Danko, I.; Hu, D.; Moziak, B.; Napolitano, J. [Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); He, Q.; Insler, J.; Muramatsu, H.; Park, C. S.; Thorndike, E. H.; Yang, F. [University of Rochester, Rochester, New York 14627 (United States); Artuso, M.; Blusk, S.; Khalil, S.; Li, J.; Mountain, R.; Nisar, S.; Randrianarivony, K. [Syracuse University, Syracuse, New York 13244 (United States)] (and others)

    2008-09-05T23:59:59.000Z

    We report the first observation of the decay J/{psi}{yields}3{gamma}. The signal has a statistical significance of 6{sigma} and corresponds to a branching fraction of B(J/{psi}{yields}3{gamma})=(1.2{+-}0.3{+-}0.2)x10{sup -5}, in which the errors are statistical and systematic, respectively. The measurement uses {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi} events acquired with the CLEO-c detector operating at the CESR e{sup +}e{sup -} collider.

  11. Plasmonic light yield enhancement of a liquid scintillator

    SciTech Connect (OSTI)

    Bignell, Lindsey J.; Jackson, Timothy W. [Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234 (Australia)] [Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234 (Australia); Mume, Eskender [Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234 (Australia) [Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234 (Australia); Center of Excellence in Anti-matter Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra (Australia); Lee, George P. [Department of Materials Engineering, Monash University, Melbourne (Australia)] [Department of Materials Engineering, Monash University, Melbourne (Australia)

    2013-05-27T23:59:59.000Z

    We demonstrate modifications to the light yield properties of an organic liquid scintillator due to the localization of the tertiary fluorophore component to the surface of Ag-core silica-shell nanoparticles. We attribute this enhancement to the near-field interaction of Ag nanoparticle plasmons with these fluor molecules. The scintillation light yield enhancement is shown to be equal to the fluorescence enhancement within measurement uncertainties. With a suitable choice of plasmon energy and scintillation fluor, this effect may be used to engineer scintillators with enhanced light yields for radiation detection applications.

  12. Development of Yield and Tensile Strength Design Curves for Alloy 617

    SciTech Connect (OSTI)

    Nancy Lybeck; T. -L. Sham

    2013-10-01T23:59:59.000Z

    The U.S. Department of Energy Very High Temperature Reactor Program is acquiring data in preparation for developing an Alloy 617 Code Case for inclusion in the nuclear section of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (B&PV) Code. A draft code case was previously developed, but effort was suspended before acceptance by ASME. As part of the draft code case effort, a database was compiled of yield and tensile strength data from tests performed in air. Yield strength and tensile strength at temperature are used to set time independent allowable stress for construction materials in B&PV Code, Section III, Subsection NH. The yield and tensile strength data used for the draft code case has been augmented with additional data generated by Idaho National Laboratory and Oak Ridge National Laboratory in the U.S. and CEA in France. The standard ASME Section II procedure for generating yield and tensile strength at temperature is presented, along with alternate methods that accommodate the change in temperature trends seen at high temperatures, resulting in a more consistent design margin over the temperature range of interest.

  13. Anomalous yield reduction in direct-drive DT implosions due to 3He addition

    SciTech Connect (OSTI)

    Herrmann, Hans W [Los Alamos National Laboratory; Langenbrunner, James R [Los Alamos National Laboratory; Mack, Joseph M [Los Alamos National Laboratory; Cooley, James H [Los Alamos National Laboratory; Wilson, Douglas C [Los Alamos National Laboratory; Evans, Scott C [Los Alamos National Laboratory; Sedillo, Tom J [Los Alamos National Laboratory; Kyrala, George A [Los Alamos National Laboratory; Caldwell, Stephen E [Los Alamos National Laboratory; Young, Carlton A [Los Alamos National Laboratory; Nobile, Arthur [Los Alamos National Laboratory; Wermer, Joseph R [Los Alamos National Laboratory; Paglieri, Stephen N [Los Alamos National Laboratory; Mcevoy, Aaron M [Los Alamos National Laboratory; Kim, Yong Ho [Los Alamos National Laboratory; Batha, Steven H [Los Alamos National Laboratory; Horsfield, Colin J [AWE, UK; Drew, Dave [AWE, UK; Garbett, Warren [AWE, UK; Rubery, Michael [AWE, UK; Glebov, Vladimir Yu [UNIV OF ROCHESTER; Roberts, Samuel [UNIV OF ROCHESTER; Frenje, Johan A [MIT

    2008-01-01T23:59:59.000Z

    Glass capsules were imploded in direct drive on the OMEGA laser [T. R. Boehly et aI., Opt. Commun. 133, 495, 1997] to look for anomalous degradation in deuterium/tritium (DT) yield (i.e., beyond what is predicted) and changes in reaction history with {sup 3}He addition. Such anomalies have previously been reported for D/{sup 3}He plasmas, but had not yet been investigated for DT/{sup 3}He. Anomalies such as these provide fertile ground for furthering our physics understanding of ICF implosions and capsule performance. A relatively short laser pulse (600 ps) was used to provide some degree of temporal separation between shock and compression yield components for analysis. Anomalous degradation in the compression component of yield was observed, consistent with the 'factor of two' degradation previously reported by MIT at a 50% {sup 3}He atom fraction in D{sub 2} using plastic capsules [Rygg et aI., Phys. Plasmas 13, 052702 (2006)]. However, clean calculations (i.e., no fuel-shell mixing) predict the shock component of yield quite well, contrary to the result reported by MIT, but consistent with LANL results in D{sub 2}/{sup 3}He [Wilson, et aI., lml Phys: Conf Series 112, 022015 (2008)]. X-ray imaging suggests less-than-predicted compression ofcapsules containing {sup 3}He. Leading candidate explanations are poorly understood Equation-of-State (EOS) for gas mixtures, and unanticipated particle pressure variation with increasing {sup 3}He addition.

  14. Reaction {pi}N {yields} {pi}{pi}N near threshold

    SciTech Connect (OSTI)

    Frlez, E.

    1993-11-01T23:59:59.000Z

    The LAMPF E1179 experiment used the {pi}{sup 0} spectrometer and an array of charged particle range counters to detect and record {pi}{sup +}{pi}{sup 0}, {pi}{sup 0}p, and {pi}{sup +}{pi}{sup 0}p coincidences following the reaction {pi}{sup +}p {yields} {pi}{sup 0}{pi}{sup +}p near threshold. The total cross sections for single pion production were measured at the incident pion kinetic energies 190, 200, 220, 240, and 260 MeV. Absolute normalizations were fixed by measuring {pi}{sup +}p elastic scattering at 260 MeV. A detailed analysis of the {pi}{sup 0} detection efficiency was performed using cosmic ray calibrations and pion single charge exchange measurements with a 30 MeV {pi}{sup {minus}} beam. All published data on {pi}N {yields} {pi}{pi}N, including our results, are simultaneously fitted to yield a common chiral symmetry breaking parameter {xi} ={minus}0.25{plus_minus}0.10. The threshold matrix element {vert_bar}{alpha}{sub 0}({pi}{sup 0}{pi}{sup +}p){vert_bar} determined by linear extrapolation yields the value of the s-wave isospin-2 {pi}{pi} scattering length {alpha}{sub 0}{sup 2}({pi}{pi}) = {minus}0.041{plus_minus}0.003 m{sub {pi}}{sup {minus}1}, within the framework of soft-pion theory.

  15. Study of B{yields}X(3872)K, with X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -}

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Garra Tico, J.; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A.; Pappagallo, M. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Eigen, G.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N.; Button-Shafer, J. [Lawrence Berkeley National Laboratory and University of California, Berkeley, CA 94720 (United States)] (and others)

    2008-06-01T23:59:59.000Z

    We present measurements of the decays B{sup +}{yields}X(3872)K{sup +} and B{sup 0}{yields}X(3872)K{sup 0} with X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -}. The data sample used, collected with the BABAR detector at the PEP-II e{sup +}e{sup -} asymmetric-energy storage ring, corresponds to 455x10{sup 6}BB pairs. Branching fraction measurements of B(B{sup +}{yields}X(3872)K{sup +})xB(X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -})=(8.4{+-}1.5{+-}0.7)x10{sup -6} and B(B{sup 0}{yields}X(3872)K{sup 0})xB(X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -})=(3.5{+-}1.9{+-}0.4)x10{sup -6} are obtained. We set an upper limit on the natural width of the X(3872) of {gamma}<3.3 MeV/c{sup 2} at the 90% confidence level.

  16. Renewable Energy Executive Summary High-Yield Scenario

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

    Energy Efficiency & Renewable Energy Executive Summary High-Yield Scenario Workshop Series Report INLEXT-10-18930 December 2009 The 2005 Billion-Ton Study a (BTS) esti- mates the...

  17. analysis yields potential: Topics by E-print Network

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

    the a3 R u and 13 R g states of Li2 has yielded accurate analytic potential energy functions for both states. The recommended M3LR8:0 5;33? potential for the a3...

  18. Genome sequence of the Brown Norway rat yields insights into

    E-Print Network [OSTI]

    Pachter, Lior

    Genome sequence of the Brown Norway rat yields insights into mammalian evolution Rat Genome Norway (BN) rat strain. The sequence represents a high-quality `draft' covering over 90% of the genome

  19. Yield Enhancement of Reconfigurable Microfluidics-Based Biochips Using

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Yield Enhancement of Reconfigurable Microfluidics-Based Biochips Using Interstitial Redundancy FEI SU and KRISHNENDU CHAKRABARTY Duke University Microfluidics-based biochips for biochemical analysis cumbersome equipment with minia- turized and integrated systems. As these microfluidics-based microsystems

  20. Future Yield Growth: What Evidence from Historical Data?

    E-Print Network [OSTI]

    Gitiaux, Xavier

    The potential future role of biofuels has become an important topic in energy legislation as it is seen as a potential low carbon alternative to conventional fuels. Hence, future yield growth is an important topic from ...

  1. Dynamic and rate-dependent yielding in model cohesive suspensions

    E-Print Network [OSTI]

    Richard Buscall; Peter J Scales; Anthony D Stickland; Hui-En Teo; Tiara E Kusuma; Daniel R Lester

    2014-10-01T23:59:59.000Z

    An experimental system has been found recently, a coagulated CaCO3 suspension, that shows very different yield behaviour depending upon how it is tested and at what rate it is strained. At P\\'eclet number Pe > 1 it behaves as a simple Herschel Bulkley liquid, whereas at Pe it shows hysteresis and shear-banding and in the usual type of sweep used to measure flow curves in controlled stress mode routinely, it shows very erratic and irreproducible behaviour. All of these features can be attributed to a dependence of yield stress on rate of strain. Stress growth curves obtained from step strain-rate testing showed that the rate-dependence of the yield stress was a consequence of rate-dependent strain-softening. At very low Pe yield was cooperative and the yield strain was order-one, whereas as the Pe approached unity, the yield strain reduced to that needed to break interparticle bonds and the yield stress decayed to a minimal value. For example, at 40%v/v it dropped from ca. 200 Pa to It is suspected that the rich behaviour seen for the CaCO3 system could well be the rule rather than the exception for cohesive suspensions, the importance or otherwise of the rate dependence being a matter of scale or degree. If so, then the Herschel-Bulkley equation could usefully be generalised to read (in simple shear). The proposition that rate-dependent yield might be general, for cohesive suspensions at least, is amenable to further rigorous experimental testing by a range of means and along lines suggested.

  2. Performance Characterization

    Broader source: Energy.gov [DOE]

    Performance characterization efforts within the SunShot Systems Integration activities focus on collaborations with U.S. solar companies to:

  3. Device Performance

    SciTech Connect (OSTI)

    Not Available

    2006-06-01T23:59:59.000Z

    In the Device Performance group, within the National Center for Photovoltaic's Measurements and Characterization Division, we measure the performance of PV cells and modules with respect to standard reporting conditions--defined as a reference temperature (25 C), total irradiance (1000 Wm-2), and spectral irradiance distribution (IEC standard 60904-3). Typically, these are ''global'' reference conditions, but we can measure with respect to any reference set. To determine device performance, we conduct two general categories of measurements: spectral responsivity (SR) and current versus voltage (I-V). We usually perform these measurements using standard procedures, but we develop new procedures when required by new technologies. We also serve as an independent facility for verifying device performance for the entire PV community. We help the PV community solve its special measurement problems, giving advice on solar simulation, instrumentation for I-V measurements, reference cells, measurement procedures, and anomalous results. And we collaborate with researchers to analyze devices and materials.

  4. Measurement of delayed-neutron yield from {sup 237}Np fission induced by thermal neutrons

    SciTech Connect (OSTI)

    Gundorin, N. A.; Zhdanova, K. V.; Zhuchko, V. E.; Pikelner, L. B., E-mail: plb@nf.jinr.ru; Rebrova, N. V.; Salamatin, I. M.; Smirnov, V. I.; Furman, V. I. [Joint Institute for Nuclear Research (Russian Federation)

    2007-06-15T23:59:59.000Z

    The delayed-neutron yield from thermal-neutron-induced fission of the {sup 237}Np nucleus was measured using a sample periodically exposed to a pulsed neutron beam with subsequent detection of neutrons during the time intervals between pulses. The experiment was realized on an Isomer-M setup mounted in the IBR-2 pulsed reactor channel equipped with a mirror neutron guide. The setup and the experimental procedure are described, the background sources are thoroughly analyzed, and the experimental data are presented. The total delayed-neutron yield from {sup 237}Np fission induced by thermal neutrons is {nu}{sub d} = 0.0110 {+-} 0.0009. This study was performed at the Frank Laboratory of Neutron Physics (JINR, Dubna)

  5. Alfalfa is capable of producing high yields of high quality forage for hay, haylage, and pasture. However,

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Alfalfa is capable of producing high yields of high quality forage for hay, haylage, and pasture are appropriate. Alfalfa requires deep, well-drained soils with a pH >6.5 and high levels of phosphorus (P to alfalfa performance. There are several hundred alfalfa varieties on the mar- ket, and many do well

  6. Stress localization, stiffening and yielding in a model colloidal gel

    E-Print Network [OSTI]

    Jader Colombo; Emanuela Del Gado

    2014-06-16T23:59:59.000Z

    We use numerical simulations and an athermal quasi-static shear protocol to investigate the yielding of a model colloidal gel. Under increasing deformation, the elastic regime is followed by a significant stiffening before yielding takes place. A space-resolved analysis of deformations and stresses unravel how the complex load curve observed is the result of stress localization and that the yielding can take place by breaking a very small fraction of the network connections. The stiffening corresponds to the stretching of the network chains, unbent and aligned along the direction of maximum extension. It is characterized by a strong localization of tensile stresses, that triggers the breaking of a few network nodes at around 30% of strain. Increasing deformation favors further breaking but also shear-induced bonding, eventually leading to a large-scale reorganization of the gel structure at the yielding. At low enough shear rates, density and velocity profiles display significant spatial inhomogeneity during yielding in agreement with experimental observations.

  7. Compilation of fission product yields Vallecitos Nuclear Center

    SciTech Connect (OSTI)

    Rider, B.F.

    1980-01-01T23:59:59.000Z

    This document is the ninth in a series of compilations of fission yield data made at Vallecitos Nuclear Center in which fission yield measurements reported in the open literature and calculated charge distributions have been utilized to produce a recommended set of yields for the known fission products. The original data with reference sources, as well as the recommended yields are presented in tabular form for the fissionable nuclides U-235, Pu-239, Pu-241, and U-233 at thermal neutron energies; for U-235, U-238, Pu-239, and Th-232 at fission spectrum energies; and U-235 and U-238 at 14 MeV. In addition, U-233, U-236, Pu-240, Pu-241, Pu-242, Np-237 at fission spectrum energies; U-233, Pu-239, Th-232 at 14 MeV and Cf-252 spontaneous fission are similarly treated. For 1979 U234F, U237F, Pu249H, U234He, U236He, Pu238F, Am241F, Am243F, Np238F, and Cm242F yields were evaluated. In 1980, Th227T, Th229T, Pa231F, Am241T, Am241H, Am242Mt, Cm245T, Cf249T, Cf251T, and Es254T are also evaluated.

  8. Performance Contracting

    E-Print Network [OSTI]

    Goodin, E.

    2011-01-01T23:59:59.000Z

    Performance Contracting ? A Resource for Energy Efficiency Projects Schneider Electric ? Buildings Business ? CATEE 2011 2 Top Challenges for Cities & Schools Tax Revenue Reductions Property values down, sales tax revenue down, etc Energy... issues and needs postponed Schneider Electric ? Buildings Business ? CATEE 2011 3 Performance Contracting can help? Tax Revenue Reductions Redirect funds already being spent on utilities Energy Price & Availability Issues Equip you with the tools...

  9. Sputtering yield of Pu bombarded by fission Fragments from Cf

    SciTech Connect (OSTI)

    Danagoulian, Areg [Los Alamos National Laboratory; Klein, Andreas [Los Alamos National Laboratory; Mcneil, Wendy V [Los Alamos National Laboratory; Yuan, Vincent W [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    We present results on the yield of sputtering of Pu atoms from a Pu foil, bombarded by fission fragments from a {sup 252}Cf source in transmission geometry. We have found the number of Pu atoms/incoming fission fragments ejected to be 63 {+-} 1. In addition, we show measurements of the sputtering yield as a function of distance from the central axis, which can be understood as an angular distribution of the yield. The results are quite surprising in light of the fact that the Pu foil is several times the thickness of the range of fission fragment particles in Pu. This indicates that models like the binary collision model are not sufficient to explain this behavior.

  10. Yield Strength as a Thermodynamic Consequence of Information Erasure

    E-Print Network [OSTI]

    Katira, Parag

    2015-01-01T23:59:59.000Z

    We observe that the yield strength of a variety of materials, including highly structured and densely packed metals, alloys and semi-crystalline polymers is reasonably approximated by the thermal energy density of the material. This suggests that it is related to the entropic cost of the irreversible work done during plastic deformation rather than the enthalpic cost that depends on the elastic modulus of the material. Here we propose that the entropic cost of material rearrangement in crystalline solids arises from the difference in the uncertainty in building block positions before and after yielding and estimate it using Landauer's principle for information processing. The yield strength thus obtained in given by the thermal energy density of the material multiplied by ln(2) and provides a guidepost in estimating the strength of materials complementary to the "theoretical strength of solids".

  11. Neutron emission and fragment yield in high-energy fission

    SciTech Connect (OSTI)

    Grudzevich, O. T., E-mail: ogrudzevich@ippe.ru; Klinov, D. A. [Institute for Physics and Power Engineering (Russian Federation)] [Institute for Physics and Power Engineering (Russian Federation)

    2013-07-15T23:59:59.000Z

    The KRIS special library of spectra and emission probabilities in the decays of 1500 nuclei excited up to energies between 150 and 250 MeV was developed for correctly taking into account the decay of highly excited nuclei appearing as fission fragments. The emission of neutrons, protons, and photons was taken into account. Neutron emission fromprimary fragments was found to have a substantial effect on the formation of yields of postneutron nuclei. The library was tested by comparing the calculated and measured yields of products originating from the fission of nuclei that was induced by high-energy protons. The method for calculating these yields was tested on the basis of experimental data on the thermal-neutroninduced fission of {sup 235}U nuclei.

  12. Evaluation and compilation of fission product yields 1993

    SciTech Connect (OSTI)

    England, T.R.; Rider, B.F.

    1995-12-31T23:59:59.000Z

    This document is the latest in a series of compilations of fission yield data. Fission yield measurements reported in the open literature and calculated charge distributions have been used to produce a recommended set of yields for the fission products. The original data with reference sources, and the recommended yields axe presented in tabular form. These include many nuclides which fission by neutrons at several energies. These energies include thermal energies (T), fission spectrum energies (F), 14 meV High Energy (H or HE), and spontaneous fission (S), in six sets of ten each. Set A includes U235T, U235F, U235HE, U238F, U238HE, Pu239T, Pu239F, Pu241T, U233T, Th232F. Set B includes U233F, U233HE, U236F, Pu239H, Pu240F, Pu241F, Pu242F, Th232H, Np237F, Cf252S. Set C includes U234F, U237F, Pu240H, U234HE, U236HE, Pu238F, Am241F, Am243F, Np238F, Cm242F. Set D includes Th227T, Th229T, Pa231F, Am241T, Am241H, Am242MT, Cm245T, Cf249T, Cf251T, Es254T. Set E includes Cf250S, Cm244S, Cm248S, Es253S, Fm254S, Fm255T, Fm256S, Np237H, U232T, U238S. Set F includes Cm243T, Cm246S, Cm243F, Cm244F, Cm246F, Cm248F, Pu242H, Np237T, Pu240T, and Pu242T to complete fission product yield evaluations for 60 fissioning systems in all. This report also serves as the primary documentation for the second evaluation of yields in ENDF/B-VI released in 1993.

  13. Neutron source capability assessment for cumulative fission yields measurements

    SciTech Connect (OSTI)

    Descalle, M A; Dekin, W; Kenneally, J

    2011-04-06T23:59:59.000Z

    A recent analysis of high-quality cumulative fission yields data for Pu-239 published in the peer-reviewed literature showed that the quoted experimental uncertainties do not allow a clear statement on how the fission yields vary as a function of energy. [Prussin2009] To make such a statement requires a set of experiments with well 'controlled' and understood sources of experimental errors to reduce uncertainties as low as possible, ideally in the 1 to 2% range. The Inter Laboratory Working Group (ILWOG) determined that Directed Stockpile Work (DSW) would benefit from an experimental program with the stated goal to reduce the measurement uncertainties significantly in order to make a definitive statement of the relationship of energy dependence to the cumulative fission yields. Following recent discussions between Lawrence Livermore National Laboratory (LLNL) and Los Alamos National Laboratory (LANL), there is a renewed interest in developing a concerted experimental program to measure fission yields in a neutron energy range from thermal energy (0.025 eV) to 14 MeV with an emphasis on discrete energies from 0.5 to 4 MeV. Ideally, fission yields would be measured at single energies, however, in practice there are only 'quasi-monoenergetic' neutrons sources of finite width. This report outlines a capability assessment as of June 2011 of available neutron sources that could be used as part of a concerted experimental program to measure cumulative fission yields. In a framework of international collaborations, capabilities available in the United States, at the Atomic Weapons Establishment (AWE) in the United Kingdom and at the Commissariat Energie Atomique (CEA) in France are listed. There is a need to develop an experimental program that will reduce the measurement uncertainties significantly in order to make a definitive statement of the relationship of energy dependence to the cumulative fission yields. Fission and monoenergetic neutron sources are available that could support these fission yield experiments in the US, as well as at AWE and CEA. Considerations that will impact the final choice of experimental venues are: (1) Availability during the timeframe of interest; (2) Ability to accommodate special nuclear materials; (3) Cost; (4) Availability of counting facilities; and (5) Expected experimental uncertainties.

  14. Bushland Management For Water Yield: Prospects for Texas.

    E-Print Network [OSTI]

    McCarl, Bruce A.; Griffin, Ronald C.; Kaiser, Ronald A.; Freeman, Lansingh S.; Blackburn, Wilbert H.; Jordan, Wayne R.

    1987-01-01T23:59:59.000Z

    TDOC Z TA245.7 B873 no.1569 LIBRARY :JUNo 91987 I 1 Texas A&M University Brushland Management for Water Yield: Prospects for Texas THE TEXAS AGRICULTURAL EXPERIMENT STATION/Neville P. Clarke, Director/The Texas A&M University System.../College Station, Texas B-1569 May 1987 [Blank Page in Original Bulletin] BRUSHLAND MANAGEMENT FOR WATER YIELD: PROSPECTS FOR TEXAS Bruce A. McCarl Professor- Agricultural Economics Ronald C. Griffin Associate Professor- Agricultural Economics Ronald A...

  15. Executive Summary High-Yield Scenario Workshop Series Report

    SciTech Connect (OSTI)

    Leslie Park Ovard; Thomas H. Ulrich; David J. Muth Jr.; J. Richard Hess; Steven Thomas; Bryce Stokes

    2009-12-01T23:59:59.000Z

    To get a collective sense of the impact of research and development (R&D) on biomass resource availability, and to determine the feasibility that yields higher than baseline assumptions used for past assessments could be achieved to support U.S. energy independence, an alternate “High-Yield Scenario” (HYS) concept was presented to industry experts at a series of workshops held in December 2009. The workshops explored future production of corn/agricultural crop residues, herbaceous energy crops (HECs), and woody energy crops (WECs). This executive summary reports the findings of that workshop.

  16. Effect of methionine consumption on egg component yield and composition

    E-Print Network [OSTI]

    Shafer, Daniel John

    2012-06-07T23:59:59.000Z

    Production Weight (%) . 30 . 33 . 37 . 40 (g/HD') 107' 106cb 105ab 104" (mg/HD) 328' 354' 392' 423' (%) 77. 5' 77. 7' 78 7' 78. 3' (g) 63. 3" 63. 0' 63. 0' 63, 1' x ~ SEIvf 106 b 19 374 + 77 78. 1 + 7. 7 63. 1 ~ 4. 6 '"~Means within... are identified by these mg/HD intake levels. Yield of albumen and yolk were not significantly different among treatments on either a mass or percentage basis (Table 4). Shell component yield was not significantly different among treatments. Significant...

  17. Calibration of the JET neutron yield monitors using the delayed neutron counting technique

    SciTech Connect (OSTI)

    van Belle, P.; Jarvis, O.N.; Sadler, G. (JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA (Great Britain)); de Leeuw, S.; D'Hondt, P. (C.E.N./S.C.K., B-2400 Mol (Belgium)); Pillon, M. (Associazione EURATOM-ENEA, CRE Frascati (Italy))

    1990-10-01T23:59:59.000Z

    The time-resolved neutron yield is routinely measured on the JET tokamak using a set of fission chambers. At present, the preferred technique is to employ activation reactions to determine the neutron fluence at a well-chosen position and to relate the measured fluence to the total neutron emission by means of neutron transport calculations. The delayed neutron counting method is a particularly convenient method of performing the activation measurement and the fission cross sections are accurately known. This paper outlines the measurement technique as used on JET.

  18. RESEARCH ARTICLE Impact of water stress on citrus yield

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    October 2011 # INRA and Springer-Verlag, France 2011 Abstract Water shortage is becoming a severe problemRESEARCH ARTICLE Impact of water stress on citrus yield Iván García-Tejero & Victor Hugo Durán in arid and semi-arid regions worldwide, reducing the avail- ability of agricultural land and water

  19. TOWARDS STANDARDIZATION OF CSP YIELD ASSESSMENTS Richard Meyer

    E-Print Network [OSTI]

    Heinemann, Detlev

    . In the field of concentrating solar power (CSP) standardized procedures for the assessment of energy yields German Aerospace Center (DLR), Inst. f. Technical Thermodynamics, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany 4 Oldenburg University, Department of Energy and Semiconductor Research, 26111 Oldenburg, Germany

  20. 2005 Nature Publishing Group Photosynthesis genes in marine viruses yield

    E-Print Network [OSTI]

    Church, George M.

    © 2005 Nature Publishing Group Photosynthesis genes in marine viruses yield proteins during host­6 probably influences the genetic and functional diversity of both. For example, photosynthesis genes period. We also show that the expression of host photosynthesis genes declines over the course

  1. A new yield function for geomaterials. Davide Bigoni , Andrea Piccolroaz

    E-Print Network [OSTI]

    Bigoni, Davide

    and frictional materials, including soils, rocks, concrete, metallic and composite powders, metallic foams, porous metals, and polymers. The yield func- tion represents a single, convex and smooth surface of quasibrittle and frictional materials (a collective denom- ination for soil, concrete, rock, granular media

  2. Femoral neck fracture prediction by anisotropic yield criteria

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Femoral neck fracture prediction by anisotropic yield criteria M. Tellache a , b , M. Pithioux and increases its porosity. Hip fractures are the more recurrent consequences of osteoporosis, and are the cause of morbidity and increase the rate of mortality. The fracture risk due to osteoporosis, is undertaken with Dual

  3. Shear-induced sedimentation in yield stress fluids Guillaume Ovarlez

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    if a given material will remain ho- mogeneous during a flow. Using MRI techniques, we study the time the local shear rate in the interstitial fluid. Keywords: Sedimentation; Yield stress fluid; Suspension; MRI some lift or dispersion forces to the particles. This principle is typically used in fluidization

  4. The Impacts and Benefits Yielded from the Sport of Quidditch

    E-Print Network [OSTI]

    Cohen, Adam

    2013-08-06T23:59:59.000Z

    grounded theory approach and examined the impact and benefits for volunteers who chose to work for the IQA. Findings suggested the unique atmosphere of quidditch was able to produce an environment that yielded positive impact on the volunteers. It was found...

  5. MFR PAPER 1132 The ocean's yield of seafood

    E-Print Network [OSTI]

    - termine how we ought to be farming these cold seas? What crops will be best? How can we cultivate for the least cost in energy and materials. From bottle gardens to national parks, most of our garden designs provided immense yields of food crops ; other ex- amples are flower gardens in the man- grove swamps

  6. Search for the Higgs Boson in the H{yields}WW{yields}l{nu}jj Decay Channel in pp Collisions at {radical}(s)=7 TeV with the ATLAS Detector

    SciTech Connect (OSTI)

    Aad, G.; Ahles, F.; Beckingham, M.; Bernhard, R.; Bitenc, U.; Bruneliere, R.; Caron, S.; Christov, A.; Consorti, V.; Eckert, S.; Fehling-Kaschek, M.; Flechl, M.; Glatzer, J. [Fakultaet fuer Mathematik und Physik, Albert-Ludwigs-Universitaet, Freiburg i. Br. (Germany); Abbott, B. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman Oklahoma (United States); Abdallah, J.; Bosman, M.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B. [Institut de Fisica d'Altes Energies and Departament de Fisica de la Universitat Autonoma de Barcelona and ICREA, Barcelona (Spain)

    2011-12-02T23:59:59.000Z

    A search for a Higgs boson has been performed in the H{yields}WW{yields}l{nu}jj channel in 1.04 fb{sup -1} of pp collision data at {radical}(s)=7 TeV recorded with the ATLAS detector at the Large Hadron Collider. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 240 GeVyields}WW production is 3.1 pb, or 2.7 times the standard model prediction.

  7. Weather-Corrected Performance Ratio

    SciTech Connect (OSTI)

    Dierauf, T.; Growitz, A.; Kurtz, S.; Cruz, J. L. B.; Riley, E.; Hansen, C.

    2013-04-01T23:59:59.000Z

    Photovoltaic (PV) system performance depends on both the quality of the system and the weather. One simple way to communicate the system performance is to use the performance ratio (PR): the ratio of the electricity generated to the electricity that would have been generated if the plant consistently converted sunlight to electricity at the level expected from the DC nameplate rating. The annual system yield for flat-plate PV systems is estimated by the product of the annual insolation in the plane of the array, the nameplate rating of the system, and the PR, which provides an attractive way to estimate expected annual system yield. Unfortunately, the PR is, again, a function of both the PV system efficiency and the weather. If the PR is measured during the winter or during the summer, substantially different values may be obtained, making this metric insufficient to use as the basis for a performance guarantee when precise confidence intervals are required. This technical report defines a way to modify the PR calculation to neutralize biases that may be introduced by variations in the weather, while still reporting a PR that reflects the annual PR at that site given the project design and the project weather file. This resulting weather-corrected PR gives more consistent results throughout the year, enabling its use as a metric for performance guarantees while still retaining the familiarity this metric brings to the industry and the value of its use in predicting actual annual system yield. A testing protocol is also presented to illustrate the use of this new metric with the intent of providing a reference starting point for contractual content.

  8. Bio-energy feedstock yields and their water quality benefits in Mississippi

    SciTech Connect (OSTI)

    Parajuli, Prem B.

    2011-08-10T23:59:59.000Z

    Cellulosic and agricultural bio-energy crops can, under careful management, be harvested as feedstock for bio-fuels production and provide environmental benefits. However, it is required to quantify their relative advantages in feedstock production and water quality. The primary objective of this research was to evaluate potential feedstock yield and water quality benefit scenarios of bioenergy crops: Miscanthus (Miscanthus-giganteus), Switchgrass (Panicum virgatum), Johnsongrass (Sorghum halepense), Alfalfa (Medicago sativa L.), Soybean {Glycine max (L.) Merr.}, and Corn (Lea mays) in the Upper Pearl River watershed (UPRW), Mississippi using a Soil and Water Assessment Tool (SWAT). The SWAT model was calibrated (January 1981 to December 1994) and validated (January 1995 to September 2008) using monthly measured stream flow data. The calibrated and validated model determined good to very good performance for stream flow prediction (R2 and E from 0.60 to 0.86). The RMSE values (from 14 m3 s-1 to 37 m3 s-1) were estimated at similar levels of errors during model calibration and validation. The long-term average annual potential feedstock yield as an alternative energy source was determined the greatest when growing Miscanthus grass (373,849 Mg) as followed by Alfalfa (206,077 Mg), Switchgrass (132,077 Mg), Johnsongrass (47,576 Mg), Soybean (37,814 Mg), and Corn (22,069 Mg) in the pastureland and cropland of the watershed. Model results determined that average annual sediment yield from the Miscanthus grass scenario determined the least (1.16 Mg/ha) and corn scenario the greatest (12.04 Mg/ha). The SWAT model simulated results suggested that growing Miscanthus grass in the UPRW would have the greatest potential feedstock yield and water quality benefits.

  9. Temperture and composition dependence of the high flux plasma sputtering yield of Cu-Li binary alloys

    SciTech Connect (OSTI)

    Krauss, A.R.; Mendelsohn, M.H.; Gruen, D.M.; Conn, R.W.; Goebel, D.M.; Hirooka, Y.; Leung, W.K.; Bohdansky, J.

    1986-01-01T23:59:59.000Z

    High flux deuterium plasma sputtering and ion beam experiments have been performed on Cu-Li alloys to determine if the reduction in copper erosion previously predicted and observed in low flux ion beam experiments occurs at particle fluxes representative of an RFP first wall or tokamak limiter. Partial sputtering yields of the copper and lithium components have been measured as a function of alloy composition and sample temperature using optical plasma emission spectroscopy, weight loss and catcher foil techniques. It is found that the lithium sputtering yield increases with increasing sample temperature while the copper yield decreases by as much as two orders of magnitude. The temperature required to obtain the reduction in copper erosion is found to be a function of bulk lithium concentration. Consequences of these experimental results for anticipated erosion/redeposition properties are calculated, and the Cu-Li alloy in found to compare favorably with conventional low-Z materials.

  10. Correlation of grain sorghum yield to nitrogen as measured by various soil test methods

    E-Print Network [OSTI]

    Idris, Md

    1963-01-01T23:59:59.000Z

    Nitrogen vs. Percent Relative Yield. . . 23 B. Humic Acid vs. Percent Relative Yield 26 C. Organic Matter vs. Percent Relative Yield D. Organic Matter vs. Nitrifiable Nitrogen E. Organic Matter vs. Hurnic Acid . 30 V. SUMMARY AND CONCLUSION VI... Regression of Percent Relative Yield Nitrogen (High Plains Soil) . on Nitrifiable 34 Regression of Percent Relative Yield on Nitrifiable Nitrogen (Blackland Prairie Soils) Regression of Percent Relative Yield on Humic Acid (All Soils) Regression...

  11. High Performance Building Facade Solutions PIER Final Project Report

    E-Print Network [OSTI]

    Lee, Eleanor

    2011-01-01T23:59:59.000Z

    to attain the ambitious net zero energy goals defined bywere found to yield net zero energy levels of performance inA/ E teams to reach net zero energy goals by enabling use of

  12. Search for the Invisible Decay of J/{psi} in {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi}

    SciTech Connect (OSTI)

    Ablikim, M.; Bai, J. Z.; Cai, X.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chu, Y. P.; Deng, Z. Y.; Du, S. X.; Fang, J.; Fang, S. S.; Gao, C. S.; Gu, S. D.; Guo, Y. N.; He, K. L.; Heng, Y. K.; Hu, H. M.; Hu, T. [Institute of High Energy Physics, Beijing 100049 (China)] (and others)

    2008-05-16T23:59:59.000Z

    Using {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi} events in a sample of 14.0x10{sup 6} {psi}(2S) decays collected with the BES-II detector, a search for the decay of the J/{psi} to invisible final states is performed. No signal is found, and an upper limit at the 90% confidence level is determined to be 1.2x10{sup -2} for the ratio (B(J/{psi}{yields}invisible)/B(J/{psi}{yields}{mu}{sup +}{mu}{sup -})). This is the first search for J/{psi} decays to invisible final states.

  13. Comparison of Fission Product Yields and Their Impact

    SciTech Connect (OSTI)

    S. Harrison

    2006-02-01T23:59:59.000Z

    This memorandum describes the Naval Reactors Prime Contractor Team (NRPCT) Space Nuclear Power Program (SNPP) interest in determining the expected fission product yields from a Prometheus-type reactor and assessing the impact of these species on materials found in the fuel element and balance of plant. Theoretical yield calculations using ORIGEN-S and RACER computer models are included in graphical and tabular form in Attachment, with focus on the desired fast neutron spectrum data. The known fission product interaction concerns are the corrosive attack of iron- and nickel-based alloys by volatile fission products, such as cesium, tellurium, and iodine, and the radiological transmutation of krypton-85 in the coolant to rubidium-85, a potentially corrosive agent to the coolant system metal piping.

  14. Yield Strength as a Function of Dislocation Density

    E-Print Network [OSTI]

    Collins, Gary S.

    this ·Elastic load-unload curve for Iron sample is plotted and curve-fitted to Hertzian model P=4/3E*R1, and is depth. ·This radius value is then used with the elastic load-unload curve of brass to solve for its and calculated yield stress are plotted and a curve fit is applied using the Hall-Petch equation to give

  15. Direct measurement of yield stress of discrete materials

    E-Print Network [OSTI]

    S. H. Ebrahimnazhad Rahbari; J. Vollmer; S. Herminghaus; M. Brinkmann

    2012-06-09T23:59:59.000Z

    We present a novel computational method for direct measurement of yield stress of discrete materials. The method is well-suited for the measurement of jamming phase diagram of a wide range of discrete particle systems such as granular materials, foams, and colloids. We further successfully apply the method to evaluate the jamming phase diagram of wet granular material in order to demonstrates the applicability of the model.

  16. A critical evaluation of factors affecting reservoir yield estimates

    E-Print Network [OSTI]

    Bergman, Carla Elaine

    1987-01-01T23:59:59.000Z

    Statement of Problem Estimation of reservoir yield is fundamental to water resources planning and management. Effective management of the surface water resource of a river basin requires an understanding of the amount of water which can be provided... and approaches used in handling various complicating factors. Water supply planning and management involves complex institutional, legal, hydrologic, and physical systems. Streamflow, reservoir sedimentation, evaporation, water demands, and other variables...

  17. Lithium: Measurement of Young's Modulus and Yield Strength

    SciTech Connect (OSTI)

    Ryan P Schultz

    2002-11-07T23:59:59.000Z

    The Lithium Collection Lens is used for anti-proton collection. In analyzing the structural behavior during operation, various material properties of lithium are often needed. properties such as density, coefficient of thermal expansion, thermal conductivity, specific heat, compressability, etc.; are well known. However, to the authors knowledge there is only one published source for Young's Modulus. This paper reviews the results from the testing of Young's Modulus and the yield strength of lithium at room temperature.

  18. Oxidation of heterocyclic nitrogen yields to nitroheterocycles. [Nitrofurazans

    SciTech Connect (OSTI)

    Coburn, M.D.

    1985-01-01T23:59:59.000Z

    In the process of finding new routes to synthesize nitrofurazans the investigators compared the oxidation of a sulfilimide and a phosphine imine derived from 3-amino-4-(chlorophenyl)furazan (1). The sulfilimine, 3-(4-chlorophenyl)-4-dimethyl-sulfiliminofurazan (2), was prepared by treating 1 with dimethyl sulfide ditriflate. Oxidation of 1 with peroxytrifluoroacetic acid (ptfa) in dichloromethane gave a mixture that was chromatographed to give 3-(4-chlorophenyl)-4- nitro-furazan (5) in 11% yield and azoxy(4-chlorophenylfurazan) (6) in 32% yield. Under the same conditions, 2 gave a 96% yield of 5 with no trace of 6. Oxidation of diaminofurazan (7) with ptfa gives 3-amino-4-nitrofurazan (8), which was converted to the sulfilimine. Treatment of the sulfilimine with anhydrous ptfa in dichloromethane gave a solution that contained dimethyl sulfone according to /sup 13/C-NMR analysis, but no nitrocarbon could be detected. However, the /sup 14/N-NMR spectrum contained a very sharp singlet with a width at half-height of 19 Hz and a chemical shift almost identical to that of 5. Thus, it appears that we may have formed dinitrofurazan in solution, but we have not been able to isolate it in pure form as yet. 10 refs., 4 figs.

  19. Evidence for X(3872){yields}{psi}(2S){gamma} in B{sup {+-}}{yields}X(3872)K{sup {+-}} Decays and a Study of B{yields}cc{gamma}K

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Tico, J. Garra; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A.; Pappagallo, M. [INFN Sezione di Bari, I-70126 Bari (Italy); Dipartmento di Fisica, Universita di Bari, I-70126 Bari (Italy); Eigen, G.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N.; Cahn, R. N. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

    2009-04-03T23:59:59.000Z

    In a search for B{yields}cc{gamma}K decays with the BABAR detector, where cc includes J/{psi} and {psi}(2S), and K includes K{sup {+-}}, K{sub S}{sup 0}, and K*(892), we find evidence for X(3872){yields}J/{psi}{gamma} and X(3872){yields}{psi}(2S){gamma} with 3.6{sigma} and 3.5{sigma} significance, respectively. We measure the product of branching fractions B(B{sup {+-}}{yields}X(3872)K{sup {+-}})xB(X(3872){yields}J/{psi}{gamma})=[2.8{+-}0.8(stat){+-}0.1(syst)]x10{sup -6} and B(B{sup {+-}}{yields}X(3872)K{sup {+-}})xB(X(3872){yields}{psi}(2S){gamma})=[9.5{+-}2.7(stat){+-}0.6(syst)]x10{sup -6}.

  20. Observation of Y(3940){yields}J/{psi}{omega} in B{yields}J/{psi}{omega}K at BABAR

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Garra Tico, J.; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A.; Pappagallo, M. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Eigen, G.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

    2008-08-22T23:59:59.000Z

    We present a study of the decays B{sup 0,+}{yields}J/{psi}{omega}K{sup 0,+} using 383x10{sup 6} BB events obtained with the BABAR detector at PEP-II. We observe Y(3940){yields}J/{psi}{omega}, with mass 3914.6{sub -3.4}{sup +3.8}(stat){+-}2.0(syst) MeV/c{sup 2}, and width 34{sub -8}{sup +12}(stat){+-}5(syst) MeV. The ratio of B{sup 0} and B{sup +} decay to YK is 0.27{sub -0.23}{sup +0.28}(stat){sub -0.01}{sup +0.04}(syst), and the relevant B{sup 0} and B{sup +} branching fractions are reported.

  1. Measurement of the Fractional Thermonuclear Neutron Yield during Deuterium Neutral-Beam Injection into Deuterium Plasmas

    E-Print Network [OSTI]

    Measurement of the Fractional Thermonuclear Neutron Yield during Deuterium Neutral-Beam Injection into Deuterium Plasmas

  2. Computer Simulations Yield Clues to How Cells Interact With Surroundings

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

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

  3. Laser Seeding Yields High-Power Coherent Terahertz Radiation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 CERN 73-11LargeLaserLaser Seeding Yields

  4. Laser Seeding Yields High-Power Coherent Terahertz Radiation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 CERN 73-11LargeLaserLaser Seeding YieldsLaser

  5. Modern yields per stellar generation: the effect of the IMF

    E-Print Network [OSTI]

    Vincenzo, Fiorenzo; Belfiore, Francesco; Maiolino, Roberto

    2015-01-01T23:59:59.000Z

    Gaseous and stellar metallicities in galaxies are nowadays routinely used to constrain the evolutionary processes in galaxies. This requires the knowledge of the average yield per stellar generation, $y_{\\text{Z}}$, i.e. the quantity of metals that a stellar population releases into the interstellar medium (ISM), which is generally assumed to be a fixed fiducial value. Deviations of the observed metallicity from the expected value of $y_{\\text{Z}}$ are used to quantify the effect of outflows or inflows of gas, or even as evidence for biased metallicity calibrations or inaccurate metallicity diagnostics. Here we show that $\\rm y_{\\text{Z}}$ depends significantly on the Initial Mass Function (IMF), varying by up to a factor larger than three, for the range of IMFs typically adopted in various studies. This, along with the variation of the gas mass fraction restored into the ISM by supernovae ($R$, which also depends on the IMF), may yield to deceiving results, if not properly taken into account. In particular, ...

  6. Uncertainty in Simulating Wheat Yields Under Climate Change

    SciTech Connect (OSTI)

    Asseng, S.; Ewert, F.; Rosenzweig, C.; Jones, J.W.; Hatfield, Jerry; Ruane, Alex; Boote, K. J.; Thorburn, Peter; Rotter, R.P.; Cammarano, D.; Brisson, N.; Basso, B.; Martre, P.; Aggarwal, P.K.; Angulo, C.; Bertuzzi, P.; Biernath, C.; Challinor, AJ; Doltra, J.; Gayler, S.; Goldberg, R.; Grant, Robert; Heng, L.; Hooker, J.; Hunt, L.A.; Ingwersen, J.; Izaurralde, Roberto C.; Kersebaum, K.C.; Mueller, C.; Naresh Kumar, S.; Nendel, C.; O'Leary, G.O.; Olesen, JE; Osborne, T.; Palosuo, T.; Priesack, E.; Ripoche, D.; Semenov, M.A.; Shcherbak, I.; Steduto, P.; Stockle, Claudio O.; Stratonovitch, P.; Streck, T.; Supit, I.; Tao, F.; Travasso, M.; Waha, K.; Wallach, D.; White, J.W.; Williams, J.R.; Wolf, J.

    2013-09-01T23:59:59.000Z

    Anticipating the impacts of climate change on crop yields is critical for assessing future food security. Process-based crop simulation models are the most commonly used tools in such assessments1,2. Analysis of uncertainties in future greenhouse gas emissions and their impacts on future climate change has been increasingly described in the literature3,4 while assessments of the uncertainty in crop responses to climate change are very rare. Systematic and objective comparisons across impact studies is difficult, and thus has not been fully realized5. Here we present the largest coordinated and standardized crop model intercomparison for climate change impacts on wheat production to date. We found that several individual crop models are able to reproduce measured grain yields under current diverse environments, particularly if sufficient details are provided to execute them. However, simulated climate change impacts can vary across models due to differences in model structures and algorithms. The crop-model component of uncertainty in climate change impact assessments was considerably larger than the climate-model component from Global Climate Models (GCMs). Model responses to high temperatures and temperature-by-CO2 interactions are identified as major sources of simulated impact uncertainties. Significant reductions in impact uncertainties through model improvements in these areas and improved quantification of uncertainty through multi-model ensembles are urgently needed for a more reliable translation of climate change scenarios into agricultural impacts in order to develop adaptation strategies and aid policymaking.

  7. Infrared scintillation yield in gaseous and liquid argon

    E-Print Network [OSTI]

    A. Buzulutskov; A. Bondar; A. Grebenuk

    2011-04-19T23:59:59.000Z

    The study of primary and secondary scintillations in noble gases and liquids is of paramount importance to rare-event experiments using noble gas media. In the present work, the scintillation yield in gaseous and liquid Ar has for the first time been measured in the near infrared (NIR) and visible region, both for primary and secondary (proportional) scintillations, using Geiger-mode avalanche photodiodes (G-APDs) and pulsed X-ray irradiation. The primary scintillation yield of the fast component was measured to be 17000 photon/MeV in gaseous Ar in the NIR, in the range of 690-1000 nm, and 510 photon/MeV in liquid Ar, in the range of 400-1000 nm. Proportional NIR scintillations (electroluminescence) in gaseous Ar have been also observed; their amplification parameter at 163 K was measured to be 13 photons per drifting electron per kV. Possible applications of NIR scintillations in high energy physics experiments are discussed.

  8. Free ion yields in liquids: Molecular structure and track effects

    SciTech Connect (OSTI)

    Holroyd, R.

    1992-05-01T23:59:59.000Z

    The signal generated in a liquid-filled ionization chamber is proporational to the ions that escape, the free ion yield or, G{sub fi}. Recent results show how molecular structure, rate of energy loss (dE/dx) and pressure affect G{sub fi} and give further insight into the ionization process in liquids. As a consequence of the passage of high energy charged particles through a liquid, molecules are ionized and excited. The electrons have kinetic energy initially which allow them to travel some distance away from their geminate cations. The electrons may lose energy to vibrational modes but a significant fraction of the separation occurs while the electrons have subvibrational (near thermal) energy. When the electron finally thermalizes it is within the coulombic field of its parent cation and the two ions constitute a geminate pair. The free ion yield is determined by the fraction of geminate pairs which separate to form free ions as against those that recombine to form excited states.

  9. Free ion yields in liquids: Molecular structure and track effects

    SciTech Connect (OSTI)

    Holroyd, R.

    1992-01-01T23:59:59.000Z

    The signal generated in a liquid-filled ionization chamber is proporational to the ions that escape, the free ion yield or, G{sub fi}. Recent results show how molecular structure, rate of energy loss (dE/dx) and pressure affect G{sub fi} and give further insight into the ionization process in liquids. As a consequence of the passage of high energy charged particles through a liquid, molecules are ionized and excited. The electrons have kinetic energy initially which allow them to travel some distance away from their geminate cations. The electrons may lose energy to vibrational modes but a significant fraction of the separation occurs while the electrons have subvibrational (near thermal) energy. When the electron finally thermalizes it is within the coulombic field of its parent cation and the two ions constitute a geminate pair. The free ion yield is determined by the fraction of geminate pairs which separate to form free ions as against those that recombine to form excited states.

  10. A Permanent-Magnet Microwave Ion Source for a Compact High-Yield Neutron Generator

    SciTech Connect (OSTI)

    Waldmann, Ole; Ludewigt, Bernhard

    2010-10-11T23:59:59.000Z

    We present recent work on the development of a microwave ion source that will be used in a high-yield compact neutron generator for active interrogation applications. The sealed tube generator will be capable of producing high neutron yields, 5x1011 n/s for D-T and ~;;1x1010 n/s for D-D reactions, while remaining transportable. We constructed a microwave ion source (2.45 GHz) with permanent magnets to provide the magnetic field strength of 87.5 mT necessary for satisfying the electron cyclotron resonance (ECR) condition. Microwave ion sources can produce high extracted beam currents at the low gas pressures required for sealed tube operation and at lower power levels than previously used RF-driven ion sources. A 100 mA deuterium/tritium beam will be extracted through a large slit (60x6 mm2) to spread the beam power over a larger target area. This paper describes the design of the permanent-magnet microwave ion source and discusses the impact of the magnetic field design on the source performance. The required equivalent proton beam current density of 40 mA/cm2 was extracted at a moderate microwave power of 400 W with an optimized magnetic field.

  11. A Hollow-Ion Resonance of Unprecedented Strength

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

    A so-called hollow ion is formed when core electrons are removed or excited to higher energy levels, leaving an empty inner shell. Such states can be produced in He-, a...

  12. The new Integrated Biorefinery Research Facility (IBRF) offers an unprecedented

    E-Print Network [OSTI]

    by the National Renewable Energy Laboratory Hawaiian hybrid initiative fueled by NREL NREL researchers to test of renew- able fuels by 2022. Stage II includes adding the second pretreatment and high solids enzymatic of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Energy

  13. Unprecedented detail of intact neuronal receptor offers blueprint for drug

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014NationalUniversityScientific andin the Interest

  14. Mesh Generation for SHARP: Unprecedented Complexity | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EM ProjectMemoDepartment ofEMMesh Generation for

  15. A Hollow-Ion Resonance of Unprecedented Strength

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andA Hollow-Ion Resonance of

  16. A Hollow-Ion Resonance of Unprecedented Strength

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andA Hollow-Ion Resonance ofA

  17. A Hollow-Ion Resonance of Unprecedented Strength

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andA Hollow-Ion Resonance ofAA

  18. A Hollow-Ion Resonance of Unprecedented Strength

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andA Hollow-Ion Resonance

  19. A Hollow-Ion Resonance of Unprecedented Strength

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011A First Look at Yeast FattyA Greener PARCA

  20. Measurement of the ionization yield of nuclear recoils in liquid argon at 80 and 233 keV

    E-Print Network [OSTI]

    A. Bondar; A. Buzulutskov; A. Dolgov; E. Grishnyaev; S. Polosatkin; L. Shekhtman; E. Shemyakina; A. Sokolov

    2014-09-23T23:59:59.000Z

    The energy calibration of nuclear recoil detectors is of primary importance to rare-event experiments such as those of direct dark matter search and coherent neutrino-nucleus scattering. In particular, such a calibration is performed by measuring the ionization yield of nuclear recoils in liquid Ar and Xe detection media, using neutron elastic scattering off nuclei. In the present work, the ionization yield for nuclear recoils in liquid Ar has for the first time been measured in the higher energy range, at 80 and 233 keV, using a two-phase Cryogenic Avalanche Detector (CRAD) and DD neutron generator. The ionization yield in liquid Ar at an electric field of 2.3 kV/cm amounted to 7.8+/-1.1 and 9.7+/-1.3 e-/keV at 80 and 233 keV respectively. The Jaffe model for nuclear recoil-induced ionization, in contrast to that Thomas-Imel, can probably consistently describe the energy dependence of the ionization yield.

  1. Results of the LSND search for {ovr {nu}}{sub {mu}} {yields} {ovr {nu}}{sub e} oscillations

    SciTech Connect (OSTI)

    Federspiel, F.J.

    1996-07-01T23:59:59.000Z

    A search for {ovr {nu}}{sub {mu}}{yields}{ovr {nu}}{sub e} oscillations has been conducted at the Los Alamos Meson Physics Facility by using {ovr {nu}}{sub {mu}} from {mu}{sup +} decay at rest. The {ovr {nu}}{sub e} are detected via the reaction {ovr {nu}}{sub e}p {yields} e{sup +} n , correlated with a {gamma} from np {yields} d{gamma} (2.2 MeV). The use of tight cuts to identify e{sup +} events with correlated {gamma} rays yields 22 events with e{sup +} energy between 36 and 60 MeV and only 4.6 {plus_minus} 0.6 background events. The probability that this observation can be explained by statistical fluctuation is less than 10{sup -7}. Assuming these events are due to oscillations, a likelihood fit to all the e{sup +} events between 20 and 60 MeV has been performed to extract the oscillation parameters sin{sup 2} 2{theta} and {Delta}m{sup 2}. The favored region resulting from this fit is shown.

  2. Yields of neutron-rich nuclei by actinide photofission in giant dipole resonance region

    E-Print Network [OSTI]

    Debasis Bhowmick; Debasis Atta; D. N. Basu; Alok Chakrabarti

    2015-01-19T23:59:59.000Z

    Photofission of actinides is studied in the region of nuclear excitation energies that covers the entire giant dipole resonance (GDR) region. A comparative analysis of the behavior of the symmetric and asymmetric modes of photon induced fission as a function of the average excitation energy of the fissioning nucleus is performed. The mass distributions of $^{238}$U photofission fragments are obtained at the endpoint bremsstrahlung energy of 29.1 MeV which corresponds to mean photon energy of 13.7$\\pm$0.3 MeV that coincides with GDR peak for $^{238}$U photofission. The integrated yield of $^{238}$U photofission as well as charge distribution of photofission products are calculated and its role in the production of neutron-rich nuclei and their exoticity is explored.

  3. Yields of neutron-rich nuclei by actinide photofission in giant dipole resonance region

    E-Print Network [OSTI]

    Bhowmick, Debasis; Basu, D N; Chakrabarti, Alok

    2015-01-01T23:59:59.000Z

    Photofission of actinides is studied in the region of nuclear excitation energies that covers the entire giant dipole resonance (GDR) region. A comparative analysis of the behavior of the symmetric and asymmetric modes of photon induced fission as a function of the average excitation energy of the fissioning nucleus is performed. The mass distributions of $^{238}$U photofission fragments are obtained at the endpoint bremsstrahlung energy of 29.1 MeV which corresponds to mean photon energy of 13.7$\\pm$0.3 MeV that coincides with GDR peak for $^{238}$U photofission. The integrated yield of $^{238}$U photofission as well as charge distribution of photofission products are calculated and its role in the production of neutron-rich nuclei and their exoticity is explored.

  4. Combined inactivation of the Clostridium cellulolyticum lactate and malate dehydrogenase genes substantially increases ethanol yield from cellulose and switchgrass fermentations

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Keywords: Cellulose, ethanol, biofuel, Clostridiumincreases ethanol yield from cellulose and switchgrassincreases ethanol yield from cellulose and switchgrass

  5. Method and apparatus for sampling low-yield wells

    DOE Patents [OSTI]

    Last, George V. (Richland, WA); Lanigan, David C. (Kennewick, WA)

    2003-04-15T23:59:59.000Z

    An apparatus and method for collecting a sample from a low-yield well or perched aquifer includes a pump and a controller responsive to water level sensors for filling a sample reservoir. The controller activates the pump to fill the reservoir when the water level in the well reaches a high level as indicated by the sensor. The controller deactivates the pump when the water level reaches a lower level as indicated by the sensors. The pump continuously activates and deactivates the pump until the sample reservoir is filled with a desired volume, as indicated by a reservoir sensor. At the beginning of each activation cycle, the controller optionally can select to purge an initial quantity of water prior to filling the sample reservoir. The reservoir can be substantially devoid of air and the pump is a low volumetric flow rate pump. Both the pump and the reservoir can be located either inside or outside the well.

  6. Observation of B{sup -}{yields}J/{psi}{lambda}p and searches for B{sup -}{yields}J/{psi}{sigma}{sup 0}p and B{sup 0}{yields}J/{psi}pp decays

    SciTech Connect (OSTI)

    Xie, Q.L.; Dong, L.Y.; Yuan, Y.; Zang, S.L.; Zhang, C.C. [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China); Abe, K.; Adachi, I.; Gershon, T.; Haba, J.; Hazumi, M.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Katayama, N.; Kichimi, H.; Nishida, S.; Nozaki, T.; Ozaki, H.; Sakai, Y.; Takasaki, F. [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] [and others

    2005-09-01T23:59:59.000Z

    We report the observation of B{sup -}{yields}J/{psi}{lambda}p and searches for B{sup -}{yields}J/{psi}{sigma}{sup 0}p and B{sup 0}{yields}J/{psi}pp decays, using a sample of 275x10{sup 6} BB pairs collected with the Belle detector at the {upsilon}(4S) resonance. We observe a signal of 17.2{+-}4.1 events with a significance of 11.1{sigma} and obtain a branching fraction of B(B{sup -}{yields}J/{psi}{lambda}p)=11.6{+-}2.8(stat){sub -2.3}{sup +1.8}(sys)x10{sup -6}. No signal is found for either of the two decay modes, B{sup -}{yields}J/{psi}{sigma}{sup 0}p and B{sup 0}{yields}J/{psi}pp, and upper limits for the branching fractions are determined to be B(B{sup -}{yields}J/{psi}{sigma}{sup 0}p)<1.1x10{sup -5} and B(B{sup 0}{yields}J/{psi}pp)<8.3x10{sup -7} at 90% confidence level.

  7. DCSP Benchmark and a Network Performance Measurement Environment

    E-Print Network [OSTI]

    Dujmovic, Jozo J.

    to system design, system comparison and selection, and system tuning/optimization. Tradi­ tional performance evaluation techniques include an­ alytic modeling, simulation, and benchmarking (per­ formance measurement yield an extensive problem domain. From the standpoint of LAN benchmarking and performance comparison

  8. Search for the C-parity violating process J/{psi}{yields}{gamma}{gamma} via {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi}

    SciTech Connect (OSTI)

    Ablikim, M.; Bai, J. Z.; Cai, X.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chu, Y. P.; Deng, Z. Y.; Du, S. X.; Fang, J.; Fang, S. S.; Gao, C. S.; Gu, S. D.; Guo, Y. N.; He, K. L.; Heng, Y. K.; Hu, H. M.; Hu, T. [Institute of High Energy Physics, Beijing 100049 (China)] (and others)

    2007-12-01T23:59:59.000Z

    Using 14.0x10{sup 6}{psi}(2S) events collected with the BES-II detector, the C-parity violating process J/{psi}{yields}{gamma}{gamma} via {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi} is studied. We determine a new upper limit for the J/{psi}{yields}{gamma}{gamma} branching ratio of B(J/{psi}{yields}{gamma}{gamma})<2.2x10{sup -5} at the 90% C.L., which is about 20 times lower than the previous measurement.

  9. Yield of delayed neutrons in the thermal-neutron-induced reaction {sup 245}Cm(n, f)

    SciTech Connect (OSTI)

    Andrianov, V. R. [Joint Institute for Nuclear Research (Russian Federation); Vyachin, V. N. [All-Russia Scientific Research Institute of Experimental Physics (VNIIEF) (Russian Federation); Gundorin, N. A. [Joint Institute for Nuclear Research (Russian Federation); Druzhinin, A. A. [All-Russia Scientific Research Institute of Experimental Physics (VNIIEF) (Russian Federation); Zhdanova, K. V.; Lihachev, A. N.; Pikelner, L. B.; Rebrova, N. V.; Salamatin, I. M.; Furman, V. I. [Joint Institute for Nuclear Research (Russian Federation)

    2008-10-15T23:59:59.000Z

    The yield of delayed neutrons, v{sub d}, from thermal-neutron-induced fission of {sup 245}Cm is measured. Experiments aimed at studying the properties of delayed neutrons from the fission of some reactor isotopes and initiated in 1997 were continued at the upgraded Isomer-M facility by a method according to which a periodic irradiation of a sample with a pulsed neutron beam from the IBR-2 reactor was accompanied by recording emitted neutrons in the intervals between the pulses. The accuracy of the resulting total delayed-neutron yield v{sub d} = (0.64 {+-} 0.02)% is two times higher than that in previous measurements. This work was performed at the Frank Laboratory of Neutron Physics at the Joint Institute for Nuclear Research (JINR, Dubna).

  10. Search for {psi}(2S){yields}{eta}{sub c}{pi}{sup +}{pi}{sup -}{pi}{sup 0}

    SciTech Connect (OSTI)

    Pedlar, T. K. [Luther College, Decorah, Iowa 52101 (United States); Cronin-Hennessy, D.; Gao, K. Y.; Gong, D. T.; Hietala, J.; Kubota, Y.; Klein, T.; Lang, B. W.; Poling, R.; Scott, A. W.; Smith, A.; Zweber, P. [University of Minnesota, Minneapolis, Minnesota 55455 (United States); Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A. [Northwestern University, Evanston, Illinois 60208 (United States); Ernst, J. [State University of New York at Albany, Albany, New York 12222 (United States); Severini, H. [University of Oklahoma, Norman, Oklahoma 73019 (United States); Dytman, S. A.; Love, W. [University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)] (and others)

    2007-01-01T23:59:59.000Z

    Using 5.63 pb{sup -1} of data accumulated at the {psi}(2S) resonance with the CLEO III and CLEO-c detectors corresponding to 3.08x10{sup 6} {psi}(2S) decays, a search is performed for the decay {psi}(2S){yields}{eta}{sub c}{pi}{sup +}{pi}{sup -}{pi}{sup 0} to test a theoretical prediction based upon the assumption that the cc pair in the {psi}(2S) does not annihilate directly into three gluons but rather survives before annihilating. No signal is observed, and a combined upper limit from six {eta}{sub c} decay modes is determined to be B({psi}(2S){yields}{eta}{sub c}{pi}{sup +}{pi}{sup -}{pi}{sup 0}){<=}1.0x10{sup -3} at 90% C.L. This upper limit is about an order of magnitude below the theoretical expectation.

  11. 2013 DRY BEAN YIELD TRIALS EXPERIMENT TITLE PLANTING DATE LOCATION ENTRIES DESIGN REPS HARVEST METHOD

    E-Print Network [OSTI]

    06/19/13 ENTRICAN MONTCALM 16 SQ. LATTICE 3 ROD PULLED 3218 STANDARD CRANBERRY YIELD TRIAL 06/19/13 ENTRICAN MONTCALM 25 SQ. LATTICE 4 ROD PULLED 3219 PRELIMINARY CRANBERRY YIELD TRIAL 06/19/13 ENTRICAN

  12. Dramatically Improved Yields in Molecular Scale Electronic Devices Using Ultra-smooth Platinum Electrodes Prepared By

    E-Print Network [OSTI]

    Islam, M. Saif

    Dramatically Improved Yields in Molecular Scale Electronic Devices Using Ultra-smooth Platinum scale electronic devices by using ultra- smooth platinum (Pt) electrodes made with chemical mechanically Terms -- Molecular electronics, CMP, SAM, Langmuir-Blodgett, Device yields. I. INTRODUCTION Molecular

  13. E-Print Network 3.0 - anomalous sputter yields Sample Search...

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

    to reduce the multipactor is to decrease the secondary emission yield... of the ceramic window. Due to its low Secondary electron Emission Yield (SEY), TiN thin film is ......

  14. E-Print Network 3.0 - artifacts yield starch Sample Search Results

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

    -006-9022-5 A Statistical Analysis of the Theoretical Yield of Ethanol from Corn Starch Tad W. Patzek1,2 Received 14 March... possible) yield of ethanol from this starch. My...

  15. Pyrolysis of polyolefins for increasing the yield of monomers' recovery

    SciTech Connect (OSTI)

    Donaj, Pawel J., E-mail: pawel@mse.kth.se [Royal Institute of Technology, School of Industrial Engineering and Management, Division of Energy and Furnace Technology, Brinellvagen 23, 100-44 Stockholm (Sweden); Kaminsky, W. [University of Hamburg, Institute of Technical and Macromolecular Chemistry, Martin-Luther-King Platz 6, 20146 Hamburg (Germany); Buzeto, F. [State University of Campinas - UNICAMP, College of Chemical Engineering, Department of Polymer Science - Av. Albert Einstein 13083-852 Campinas (Brazil); Yang, W. [Royal Institute of Technology, School of Industrial Engineering and Management, Division of Energy and Furnace Technology, Brinellvagen 23, 100-44 Stockholm (Sweden)

    2012-05-15T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer Thermal and catalytic pyrolysis of mixed polyolefins in fluidized bed has been studied. Black-Right-Pointing-Pointer We tested applicability of a commercial Ziegler-Natta catalyst (Z-N: TiCl{sub 4}/MgCl{sub 2}). Black-Right-Pointing-Pointer The catalyst has a strong influence on product distribution, increasing gas fraction. Black-Right-Pointing-Pointer At 650 Degree-Sign C the monomer generation increased by 55% when the catalyst was used. Black-Right-Pointing-Pointer We showed the concept of treatment of mixed polyolefins without a need of separation. - Abstract: Pyrolysis of plastic waste is an alternative way of plastic recovery and could be a potential solution for the increasing stream of solid waste. The objective of this work was to increase the yield the gaseous olefins (monomers) as feedstock for polymerization process and to test the applicability of a commercial Ziegler-Natta (Z-N): TiCl{sub 4}/MgCl{sub 2} for cracking a mixture of polyolefins consisted of 46% wt. of low density polyethylene (LDPE), 30% wt. of high density polyethylene (HDPE) and 24% wt. of polypropylene (PP). Two sets of experiments have been carried out at 500 and 650 Degree-Sign C via catalytic pyrolysis (1% of Z-N catalyst) and at 650 and 730 Degree-Sign C via only-thermal pyrolysis. These experiments have been conducted in a lab-scale, fluidized quartz-bed reactor of a capacity of 1-3 kg/h at Hamburg University. The results revealed a strong influence of temperature and presence of catalyst on the product distribution. The ratios of gas/liquid/solid mass fractions via thermal pyrolysis were: 36.9/48.4/15.7% wt. and 42.4/44.7/13.9% wt. at 650 and 730 Degree-Sign C while via catalytic pyrolysis were: 6.5/89.0/4.5% wt. and 54.3/41.9/3.8% wt. at 500 and 650 Degree-Sign C, respectively. At 650 Degree-Sign C the monomer generation increased by 55% up to 23.6% wt. of total pyrolysis products distribution while the catalyst was added. Obtained yields of olefins were compared with the naphtha steam cracking process and other potentially attractive processes for feedstock generation. The concept of closed cycle material flow for polyolefins has been discussed, showing the potential benefits of feedstock recycling in a plastic waste management.

  16. E-Print Network 3.0 - approach yields decreased Sample Search...

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

    production (yield ... Source: Beckermann, Christoph - Department of Mechanical and Industrial Engineering, University of Iowa Collection: Materials Science 2 Copyright 2001...

  17. The Effects of Nitrogen Fertilization on Bioenergy Sorghum Yield and Quality

    E-Print Network [OSTI]

    Zilahi-Sebess, Szilvia

    2012-07-16T23:59:59.000Z

    ................................................................................................... 77 Economics of fertilizing biomass feedstocks ................................................. 77 Biomass feedstock yield response to applied nitrogen: An example ........... 79 CONCLUSIONS...

  18. Foodservice yield and fabrication times for beef as influenced by purchasing options and merchandising styles

    E-Print Network [OSTI]

    Weatherly, Benjamin Harrison

    1999-01-01T23:59:59.000Z

    . . . . . 1 3 RESULTS AND DISCUSSION. . . . . . 14 CONCLUSIONS . . . . . . 35 LITERATURE CITED. . . . . . . . . 36 VITA. . . 38 LIST OF TABLES TABLE Page 1 Mean foodservice yields (%), processing times (s) and SE for IMPS 109 beef ribs (n =3...). . . . 15 2 Mean foodservice yields (%), processing times (s) and SE for IMPS 109E beef ribs (n=3). . . 16 3 Mean foodservice yields (%), processing times (s) and SE for IMPS 120 beef brisket (n = 7). . . . . . . 17 4 Mean foodservice yields...

  19. High-Performance Computing for Advanced Smart Grid Applications

    SciTech Connect (OSTI)

    Huang, Zhenyu; Chen, Yousu

    2012-07-06T23:59:59.000Z

    The power grid is becoming far more complex as a result of the grid evolution meeting an information revolution. Due to the penetration of smart grid technologies, the grid is evolving as an unprecedented speed and the information infrastructure is fundamentally improved with a large number of smart meters and sensors that produce several orders of magnitude larger amounts of data. How to pull data in, perform analysis, and put information out in a real-time manner is a fundamental challenge in smart grid operation and planning. The future power grid requires high performance computing to be one of the foundational technologies in developing the algorithms and tools for the significantly increased complexity. New techniques and computational capabilities are required to meet the demands for higher reliability and better asset utilization, including advanced algorithms and computing hardware for large-scale modeling, simulation, and analysis. This chapter summarizes the computational challenges in smart grid and the need for high performance computing, and present examples of how high performance computing might be used for future smart grid operation and planning.

  20. Machine milkability as related to dairy yield and its fractions in dairy ewes (1)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Machine milkability as related to dairy yield and its fractions in dairy ewes (1) O. JATSCH R. SAGI and adaptation to machine milking were evaluated by determining milk yield fractions for Awassi and Assaf dairy conformation significantly affected milk yield and adaptation to machine milking, while breed, rearing methods

  1. Yield Enhancement of Digital Microfluidics-Based Biochips Using Space Redundancy and Local Reconfiguration*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Yield Enhancement of Digital Microfluidics-Based Biochips Using Space Redundancy and Local to avoid faulty elements. Digital microfluidics- based biochips are also amenable to redundancy-based yield. As microfluidics-based biochips become more complex, manufacturing yield will have significant influence

  2. NEANDC specialists meeting on yields and decay data of fission product nuclides

    SciTech Connect (OSTI)

    Chrien, R.E.; Burrows, T.W. (eds.)

    1983-01-01T23:59:59.000Z

    Separate abstracts were prepared for the 29 papers presented. Workshop reports on decay heat, fission yields, beta- and gamma-ray spectroscopy, and delayed neutrons are included. An appendix contains a survey of the most recent compilations and evaluations containing fission product yield, fission product decay data, and delayed neutron yield information. (WHK)

  3. Microscopic cold fission yields of {sup 252}Cf

    SciTech Connect (OSTI)

    Mirea, M. [National Institute of Physics and Nuclear Engineering, 407 Atomistilor, RO-077125 Bucharest-Magurele (Romania); Delion, D. S. [National Institute of Physics and Nuclear Engineering, 407 Atomistilor, RO-077125 Bucharest-Magurele (Romania); Academy of Romanian Scientists 54 Splaiul Independentei, RO-050094 Bucharest (Romania); Sandulescu, A. [Academy of Romanian Scientists 54 Splaiul Independentei, RO-050094 Bucharest (Romania); Institute for Advanced Studies in Physics, 129 Calea Victoriei, Bucharest (Romania)

    2010-04-15T23:59:59.000Z

    We show that the sharp maximum corresponding to {sup 107}Mo in the fragment distribution of the {sup 252}Cf cold fission is actually a Sn-like radioactivity, similar to other decay processes in which magic nuclei are involved, namely alpha decay and heavy cluster emission, also called Pb-like radioactivity. It turns out that the mass asymmetry degree of freedom has a key role in connecting initial Sn with the final Mo isotopes along the fission path. We investigate the cold rearrangement of nucleons within the framework of the two-center shell model in order to compute the cold valleys in the charge equilibrated fragmentation potential. The fission yields are estimated by using the semiclassical penetration approach. We consider 5 degrees of freedom, namely the interfragment distance, the shapes of fragments, the neck parameter, and mass asymmetry. We found an isomeric minimum between the internal and external barriers. It turns out that the inner cold valley of the total potential energy is connected to the doubly magic isotope {sup 132}Sn.

  4. Predicting the Yields of Photometric Surveys for Transiting Planets

    E-Print Network [OSTI]

    Thomas G. Beatty

    2008-07-01T23:59:59.000Z

    Observing extrasolar planetary transits is one of the only ways that we may infer the masses and radii of planets outside the Solar System. As such, the detections made by photometric transit surveys are one of the only foreseeable ways that the areas of planetary interiors, system dynamics, migration, and formation will acquire more data. Predicting the yields of these surveys therefore serves as a useful statistical tool. Predictions allows us to check the efficiency of transit surveys (``are we detecting all that we should?'') and to test our understanding of the relevant astrophysics (``what parameters affect predictions?''). Furthermore, just the raw numbers of how many planets will be detected by a survey can be interesting in its own right. Here, we look at two different approaches to modeling predictions (forward and backward), and examine three different transit surveys (TrES, XO, and Kepler). In all cases, making predictions provides valuable insight into both extrasolar planets and the surveys themselves, but this must be tempered by an appreciation of the uncertainties in the statistical cut-offs used by the transit surveys.

  5. Inertial Confinement Fusion Ignition and High Yield Campaign

    E-Print Network [OSTI]

    : Provide mission need report for the proposed OMEGA Extended Performance project. · October 2002: NNSA November 21, 2003 #12;2 Statements to FESAC IFE panel 10/28/03 · Ignition is a major goal for NNSA supports OFES's mission and OFES use of NNSA's ICF facilities is accepted · Defense Programs reserves right

  6. Performance of propeller wind turbines

    SciTech Connect (OSTI)

    Wortman, A.

    1983-11-01T23:59:59.000Z

    Presented herein is a parametric study of the performance of propeller wind turbines with realistic drag/lift ratios. Calculations were made using the complete Glauert vortex blade element theory in annular streamtube elements with the complete turbine performance being the sum of the elemental results up to a specified tip speed ratio. The objective here is to exhibit a new computational technique which yields performance directly when tangential speed ratio and section aerodynamic characteristics are specified. It was found that for a tip speed ratio of 4, turbines with drag/lift ratios of 0.00 and 0.01 had power coefficients of 0.575 and 0.55, respectively. The off-design performance of the finite drag/lift was far better than that of their zero drag counterparts, except in a + or - 20% region about the design conditions. Tolerance to off-design operation increased with decreasing tip speed ratios so that the annual energy capture for tip speed ratios between 2 and 4 was about 87% of the ideal turbine value. The results are intended to provide a basis for re-evaluation of the power range classes of fixed pitch turbines and design tip speed ratios.

  7. The impacts on broiler performance and yield by removing antibiotic growth promoters and an evaluation of potential alternatives

    E-Print Network [OSTI]

    Bray, Joey Lynn

    2009-05-15T23:59:59.000Z

    Bacillus subtilis spores (Gallipro®, Chr Hansen A/S, Denmark), as a direct-fed microbial additive, to commercial broiler chickens. Birds were divided among two paired-house facilities. The treatment group received basal diets supplemented with B. subtilis...

  8. Measurement of the asymmetry parameter for the decay {Lambda}{yields}p{pi}{sup +}

    SciTech Connect (OSTI)

    Ablikim, M.; Bai, J. Z.; Bai, Y.; Cai, X.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chu, Y. P.; Deng, Z. Y.; Du, S. X.; Fang, J.; Fu, C. D.; Gao, C. S.; Gu, S. D.; Guo, Y. N.; He, K. L.; Heng, Y. K.; Hu, H. M. [Institute of High Energy Physics, Beijing 100049 (China)

    2010-01-01T23:59:59.000Z

    Based on a sample of 58x10{sup 6}J/{psi} decays collected with the BESII detector at the BEPC, the {Lambda} decay parameter {alpha}{sub {Lambda}}for {Lambda}{yields}p{pi}{sup +} is measured using about 9000 J/{psi}{yields}{Lambda}{Lambda}{yields}pp{pi}{sup +{pi}-} decays. A fit to the joint angular distributions yields {alpha}{sub {Lambda}({Lambda}{yields}p{pi}{sup +})}=-0.755{+-}0.083{+-}0.063, where the first error is statistical, and the second systematic.

  9. High Performance Computing

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

    High Performance Computing High Performance Computing Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of...

  10. High yield Cu-Co CPP GMR multilayer sensors

    SciTech Connect (OSTI)

    Spallas, J., Mao, M., Law, B., Grabner, F., Cerjan, C., O`Kane, O.

    1997-01-15T23:59:59.000Z

    We have fabricated and tested GMR magnetic flux sensors that operate in the CPP mode. This work is a continuation of the ultra-high density magnetic sensor research introduced at INTERMAG 96. We have made two significant modifications to the process sequence. First, contact to the sensor is made through a metal conduit deposited in situ with the multilayers. This deposition replaces electroplating. This configuration ensures a good electrical interface between the top of multilayer stack and the top contact, and a continuous, conductive current path to the sensor. The consequences of this modification are an increase in yield of operational devices to {ge}90% per wafer and a significant reduction of the device resistance to {le}560 milliohms and of the uniformity of the device resistance to {le}3%. Second, the as-deposited multilayer structure has been changed from [Cu 30 {angstrom}/Co 20 {angstrom}]{sub 18} (third peak) to [Cu 20.5 {angstrom}/Co 12 {angstrom}]{sub 30} (second peak) to increase the CPP and CIP responses. The sheet film second peak CIP GMR response is 18% and the sensitivity is 0.08 %/Oe. The sheet film third peak CIP GMR response is 8% and the sensitivity is 0. 05 %/Oe. The second peak CPP GMR response averaged over twenty devices on a four inch silicon substrate is 28% {+-} 6%. The response decreases radially from the substrate center. The average response at the center of the substrate is 33% {+-} 4%. The average second peak CPP sensitivity is 0.09 %/Oe {+-} 0.02 %/Oe. The best second peak CPP response from a single device is 39%. The sensitivity of that device is 0.13 %/Oe. The third peak CPP GMR response is approximately 14 %. The third peak CPP response sensitivity is 0.07 %/Oe. 6 refs., 3 figs.

  11. An Innovative Approach to Plant Utility Audits Yields Significant Results

    E-Print Network [OSTI]

    Robinson, J. E.; Moore, D. A.

    2005-01-01T23:59:59.000Z

    .050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 0.450 0.500 650 700 750 800 850KPH M M BT U / KP H 0% Worst Performance 25% 50% Average 75% 100% Best Performance EM R S R e duc e s V a r i a b ilit y Im pr ov e U n it E f f i cen cy Reduce Steam Usage... Survey - Characterized by Single Loop Analog Instrument System, relay or individual PLC?s and tenor drum programmers. • Determine the number of controllers not in automatic control. • Review of recorder charts for effectiveness of control - any...

  12. Fission product chain yields and delayed neutrons: ANS standards 5. 2 and 5. 8

    SciTech Connect (OSTI)

    England, T.R. (Los Alamos National Lab., NM (United States)); Brady, M.C. (Oak Ridge National Lab., TN (United States)); Rider, B.F.

    1990-01-01T23:59:59.000Z

    Chain yields are the addition of the direct values along constant (Z + N) paths. The addition must also account for decay branching, especially for delayed neutrons that couple the mass chains. The result is the familiar double-humped plot of yield per fission versus mass number. The lines of stable nuclides and most probable yield are shown in the (Z,N) plane. Some modern measurements provide direct yields; other provide cumulative values for long-lived or stable products. Yield evaluations must account for each type of measurement and the degree of decay coupling, beginning with direct yields. For some fissioning nuclides at thermal or fast neutron incident energies, the amount of data is enormous; and for other nuclide-energy combinations, the data must be developed from systematics. Many applications of chain yields can use the same systematics to estimate independent values. The ANS 5.2 standard is currently in rough draft form for comment from working group members.

  13. Optimizing Production of Hydroquinone Achieves Increased Yield and Energy Efficiency

    E-Print Network [OSTI]

    Gross, S.

    definition ? Risk assessment ? In order to move past the cultural barriers, a detailed risk assessment was essential for stakeholder buy-in. ? The Failure Modes and Effects Analysis (FMEA) tool was used to document and evaluate potential risks.... ? Reliable supply at high level of p-DIPB ? Peroxides degradation at higher temperatures ? Inventory management ? Labor ? operations and packaging (contractors) ? FMEA promoted understanding of the risks. Project definition ? Risk management ? Performed...

  14. Measurement of decay amplitudes of B{yields}J/{psi}K*, {psi}(2S)K*, and {chi}{sub c1}K* with an angular analysis

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Tico, J. Garra; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Eigen, G.; Ofte, I.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

    2007-08-01T23:59:59.000Z

    We perform the first three-dimensional measurement of the amplitudes of B{yields}{psi}(2S)K* and B{yields}{chi}{sub c1}K* decays and update our previous measurement for B{yields}J/{psi}K*. We use a data sample collected with the BABAR detector at the PEP-II storage ring, corresponding to 232x10{sup 6} BB pairs. The longitudinal polarization of decays involving a J{sup PC}=1{sup ++} {chi}{sub c1} meson is found to be larger than that with a 1{sup --} J/{psi} or {psi}(2S) meson. No direct CP-violating charge asymmetry is observed.

  15. Management and Performance PERFORMANCE REPORTING AND PLANNING

    E-Print Network [OSTI]

    Waliser, Duane E.

    2015 Performance Plan, starting with the currently reported year of FY 2013 and spanning backward from FY 2008 to FY 2012, go to http://www.nasa.gov/about/budget/PAR_Reports.html. The combined report 2014 and/or FY 2015. The performance goal summary is followed by: · The annual performance indicators

  16. DOE High Performance Computing Operational Review (HPCOR): Enabling Data-Driven Scientific Discovery at HPC Facilities

    SciTech Connect (OSTI)

    Gerber, Richard; Allcock, William; Beggio, Chris; Campbell, Stuart; Cherry, Andrew; Cholia, Shreyas; Dart, Eli; England, Clay; Fahey, Tim; Foertter, Fernanda; Goldstone, Robin; Hick, Jason; Karelitz, David; Kelly, Kaki; Monroe, Laura; Prabhat,; Skinner, David; White, Julia

    2014-10-17T23:59:59.000Z

    U.S. Department of Energy (DOE) High Performance Computing (HPC) facilities are on the verge of a paradigm shift in the way they deliver systems and services to science and engineering teams. Research projects are producing a wide variety of data at unprecedented scale and level of complexity, with community-specific services that are part of the data collection and analysis workflow. On June 18-19, 2014 representatives from six DOE HPC centers met in Oakland, CA at the DOE High Performance Operational Review (HPCOR) to discuss how they can best provide facilities and services to enable large-scale data-driven scientific discovery at the DOE national laboratories. The report contains findings from that review.

  17. Use of prolines for improving growth and/or yield

    DOE Patents [OSTI]

    Unkefer, Pat J.; Martinez, Rodolfo A.; Knight, Thomas J.

    2014-08-12T23:59:59.000Z

    The present invention describes a composition including a mixture of L- and D-pyroglutamate stereoisomers in a ratio of L to D of from about 80:20 to about 97:3 , and, a carrier medium for application of the L- and D-pyroglutamate stereoisomers to a target plant. The composition can also be used as a germination medium and may be incorporated into a seed coat for assisting in germination. The present invention further describes a method of increasing the agronomic performance of a target plant by treating a target plant with a composition including a mixture of L- and D-pyroglutamate stereoisomers in a ratio of L to D of from about 80:20 to about 97:3 and a carrier medium for said L- and D-pyroglutamate stereoisomers.

  18. Yields of delayed-neutron groups in thermal-neutron fission of sup 229 Th

    SciTech Connect (OSTI)

    Gudkov, A.N.; Koldobskii, A.B.; Krivasheev, S.V.; Lebedev, N.A.; Pchelin, V.A. (Moscow Engineering-Physics Institute (SU))

    1989-06-01T23:59:59.000Z

    Absolute yields of five delayed-neutron groups in thermal-neutron fission of {sup 229}Th have been determined for the first time. A significant discrepancy is noted between the experimental yields of delayed neutrons of the fourth group and the corresponding theoretical values. From the results of the experimental studies, corrections have been determined for even--odd effects in the charge distributions of the yields of fragment nuclides.

  19. B {yields} {pi}K puzzle: Solutions in the Standard Model and in New Physics

    SciTech Connect (OSTI)

    Baek, Seungwon; Hamel, Philippe; London, David [Physique des Particules, Universite de Montreal, C.P. 6128, succ. centre-ville, Montreal, QC, H3C 3J7 (Canada); Datta, Alakabha [Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada); Suprun, Denis A. [Physics Department, Brookhaven National Laboratory, Upton, NY, 11973 (United States)

    2005-12-02T23:59:59.000Z

    The present B {yields} {pi}K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B {yields} {pi}K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B {yields} {pi}K data can be accommodated by NP in the electroweak penguin sector.

  20. Relationships of milk yield and season of calving with ovarian cyclicity of Holstein and Jersey cows

    E-Print Network [OSTI]

    Gonzalez Sanchez, Andres

    1984-01-01T23:59:59.000Z

    estimated for 60, 90, 120, and 305 days in lactation. Average postpartum intervals to first two ovulations of Holsteins (23 and 44 days) were longer than for Jerseys (19 and 39 days). length of first two estrous cycles were 19 and 24 days for Jerseys... days/100 kg 305-day milk yield). 'This unfavorable milk yield ? ovulation relationship was undetectable by third ovulation which averaged 67 days postpartum. Length of second estrous cycle of Holsteins was unrelated to milk yield, but foz Jerseys...

  1. A stochastic model for sediment yield using the Principle of Maximum Entropy

    E-Print Network [OSTI]

    Singh, V. P.; Krstanovic, P. F.

    WATER RESOURCES RESEARCH, VOL. 23, NO. 5, PAGES 781-793, MAY 1987 A Stochastic Model for Sediment Yield Using the Principle of Maximum Entropy V. P. SINGH AND P. F. KRSTANOVIC Department of Civil Engineering, Louisiana State University, Baton... Rouge The principle of maximum entropy was applied to derive a stochastic model for sediment yield from upland watersheds. By maximizing the conditional entropy subject to certain constraints, a probability distribution of sediment yield conditioned...

  2. Measurements of actinide-fission product yields in Caliban and Prospero metallic core reactor fission neutron fields

    SciTech Connect (OSTI)

    Casoli, P.; Authier, N. [CEA, Centre de Valduc, 21120 Is-sur-Tille (France); Laurec, J.; Bauge, E.; Granier, T. [CEA, Centre DIF, 91297 Arpajon (France)

    2011-07-01T23:59:59.000Z

    In the 1970's and early 1980's, an experimental program was performed on the facilities of the CEA Valduc Research Center to measure several actinide-fission product yields. Experiments were, in particular, completed on the Caliban and Prospero metallic core reactors to study fission-neutron-induced reactions on {sup 233}U, {sup 235}U, and {sup 239}Pu. Thick actinide samples were irradiated and the number of nuclei of each fission product was determined by gamma spectrometry. Fission chambers were irradiated simultaneously to measure the numbers of fissions in thin deposits of the same actinides. The masses of the thick samples and the thin deposits were determined by mass spectrometry and alpha spectrometry. The results of these experiments will be fully presented in this paper for the first time. A description of the Caliban and Prospero reactors, their characteristics and performances, and explanations about the experimental approach will also be given in the article. A recent work has been completed to analyze and reinterpret these measurements and particularly to evaluate the associated uncertainties. In this context, calculations have also been carried out with the Monte Carlo transport code Tripoli-4, using the published benchmarked Caliban description and a three-dimensional model of Prospero, to determine the average neutron energy causing fission. Simulation results will be discussed in this paper. Finally, new fission yield measurements will be proposed on Caliban and Prospero reactors to strengthen the results of the first experiments. (authors)

  3. A comparison of silage and grain yields of four corn hybrids at three locations in Texas

    E-Print Network [OSTI]

    Martelino, Rafael Agcaoili

    1954-01-01T23:59:59.000Z

    A (X)HPARISOM Of SILAGM AND GRAIN YI~ QF FODR ~ HYBRIDS AT THRE1'' LOGATIONS IM TzXAS A Thesis RAPAol, A. I JKThI, INO Approve as to stgrle aml content Qs (~chairmen of GcnsmLtt ( Haad Department June, 1&54 , ;. RY OF TE A v... TABLES Page 20 31 Analysis of variance of silage yields at Temple Analysis of variance of grain yields at Temple . Analysis of varianoe of lodging percentage at Temple. . . ~ 12 o ~ 12 ~ i 13 4, 5 ~ 6, 70 Silage yield, grain yield...

  4. The effects of alternative housing on pork carcass quality and yield characteristics /by Randall Long.

    E-Print Network [OSTI]

    Long, Randall.

    2014-01-01T23:59:59.000Z

    ??Quality and yield characteristics of finishing hogs in alternative and conventional confinement were evaluated. Trials were conducted June _October 2008, using a hoop barn (designed… (more)

  5. E-Print Network 3.0 - aerogel light yield Sample Search Results

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

    as 3D Scaffolds for New Materials: from Mechanically Strong Polymer Crosslinked Aerogels Summary: ) yield porous carbides. Xerogels and polymer-coated (X-) RF- MOx aerogels...

  6. An Econometric Model of the Yield Curve With Macroeconomic Jump Effects

    E-Print Network [OSTI]

    Piazzesi, Monika

    2001-01-01T23:59:59.000Z

    Kenneth Singleton (1997). “An Econometric Model of the TermDiscretely-Sampled Data. ” Econometric Theory 4, pp. 231-An Econometric Model of the Yield Curve with Macroeconomic

  7. Thick-Target Neutron Yield from the 19F(alpha,n) Reaction

    E-Print Network [OSTI]

    E. B. Norman; T. E. Chupp; K. T. Lesko; G. L. Woodruff; P. J. Grant

    2014-11-01T23:59:59.000Z

    Thick-target neutron yields from the 19F(alpha,n) reaction are reported for E(alpha) = 3.5 - 10.0 MeV.

  8. Measurement of Charged Pion Production Yields off the NuMI Target

    E-Print Network [OSTI]

    J. M. Paley; M. D. Messier; R. Raja; U. Akgun; D. M. Asner; G. Aydin; W. Baker; P. D. Barnes, Jr.; T. Bergfeld; L. Beverly; V. Bhatnagar; B. Choudhary; E. C. Dukes; F. Duru; G. J. Feldman; A. Godley; N. Graf; J. Gronberg; E. Gulmez; Y. O. Gunaydin; H. R. Gustafson; E. P. Hartouni; P. Hanlet; M. Heffner; D. M. Kaplan; O. Kamaev; J. Klay; A. Kumar; D. J. Lange; A. Lebedev; J. Ling; M. J. Longo; L. C. Lu; C. Materniak; S. Mahajan; H. Meyer; D. E. Miller; S. R. Mishra; K. Nelson; T. Nigmanov; A. Norman; Y. Onel; A. Penzo; R. J. Peterson; D. Rajaram; D. Ratnikov; C. Rosenfeld; H. Rubin; S. Seun; A. Singh; N. Solomey; R. A. Soltz; Y. Torun; K. Wilson; D. M. Wright; Q. K. Wu

    2014-04-23T23:59:59.000Z

    The fixed-target MIPP experiment, Fermilab E907, was designed to measure the production of hadrons from the collisions of hadrons of momenta ranging from 5 to 120 GeV/c on a variety of nuclei. These data will generally improve the simulation of particle detectors and predictions of particle beam fluxes at accelerators. The spectrometer momentum resolution is between 3 and 4%, and particle identification is performed for particles ranging between 0.3 and 80 GeV/c using $dE/dx$, time-of-flight and Cherenkov radiation measurements. MIPP collected $1.42 \\times10^6$ events of 120 GeV Main Injector protons striking a target used in the NuMI facility at Fermilab. The data have been analyzed and we present here charged pion yields per proton-on-target determined in bins of longitudinal and transverse momentum between 0.5 and 80 GeV/c, with combined statistical and systematic relative uncertainties between 5 and 10%.

  9. Active Wake Redirection Control to Improve Energy Yield (Poster)

    SciTech Connect (OSTI)

    Churchfield, M. J.; Fleming, P.; DeGeorge, E.; Bulder, B; White, S. M.

    2014-10-01T23:59:59.000Z

    Wake effects can dramatically reduce the efficiency of waked turbines relative to the unwaked turbines. Wakes can be deflected, or 'redirected,' by applying yaw misalignment to the turbines. Yaw misalignment causes part of the rotor thrust vector to be pointed in the cross-stream direction, deflecting the flow and the wake. Yaw misalignment reduces power production, but the global increase in wind plant power due to decreased wake effect creates a net increase in power production. It is also a fairly simple control idea to implement at existing or new wind plants. We performed high-fidelity computational fluid dynamics simulations of the wake flow of the proposed Fishermen's Atlantic City Windfarm (FACW) that predict that under certain waking conditions, wake redirection can increase plant efficiency by 10%. This means that by applying wake redirection control, for a given watersheet area, a wind plant can either produce more power, or the same amount of power can be produced with a smaller watersheet area. With the power increase may come increased loads, though, due to the yaw misalignment. If misalignment is applied properly, or if layered with individual blade pitch control, though, the load increase can be mitigated. In this talk we will discuss the concept of wake redirection through yaw misalignment and present our CFD results of the FACW project. We will also discuss the implications of wake redirection control on annual energy production, and finally we will discuss plans to implement wake redirection control at FACW when it is operational.

  10. Distributed performance counters

    DOE Patents [OSTI]

    Davis, Kristan D; Evans, Kahn C; Gara, Alan; Satterfield, David L

    2013-11-26T23:59:59.000Z

    A plurality of first performance counter modules is coupled to a plurality of processing cores. The plurality of first performance counter modules is operable to collect performance data associated with the plurality of processing cores respectively. A plurality of second performance counter modules are coupled to a plurality of L2 cache units, and the plurality of second performance counter modules are operable to collect performance data associated with the plurality of L2 cache units respectively. A central performance counter module may be operable to coordinate counter data from the plurality of first performance counter modules and the plurality of second performance modules, the a central performance counter module, the plurality of first performance counter modules, and the plurality of second performance counter modules connected by a daisy chain connection.

  11. Intensity-resolved Above Threshold Ionization Yields of Atoms with Ultrashort Laser Pulses

    E-Print Network [OSTI]

    Hart, Nathan Andrew

    2012-10-19T23:59:59.000Z

    . Electron ionization yields of xenon were measured for a set of laser pulse intensities using a time of flight (TOF) setup. Horizontally polarized, unchirped, pulses were used in the ionization process. All laser parameters other than the radiation.... The photoelectron yield rate for xenon ............................................................... 37 Fig. 20. The Runge divergence calculated for the model xenon probability function using (6...

  12. The Current State of Casting Yield: Results from the 1997 Steel Founders'

    E-Print Network [OSTI]

    Beckermann, Christoph

    , Chicago, IL, 1997. #12;lNTRODUCTlON It is commonly believed that the average metal yield in the steel casting industry is approximately 50 to 55 percent. A primary goal of conducting the casting yield survey additional costs in remelting scrapped steel (estimated to account for 7% of the total casting cost

  13. Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials

    E-Print Network [OSTI]

    Olson, Tamara

    Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials Tamara January 1993 Abstract The yield surface of a mixture of rigid/perfectly­plastic materials is examined plasticity under suffi­ ciently large stress. The set of stresses at which the deformation changes from

  14. CELL BIOLOGY & MOLECULAR GENETICS Forage Yields of Alfalfa Populations Derived from Parents

    E-Print Network [OSTI]

    Yandell, Brian S.

    CELL BIOLOGY & MOLECULAR GENETICS Forage Yields of Alfalfa Populations Derived from Parents inbreeding (Bus- bice, 1970).It is important to know if forage yields of alfalfa (Medicago sativa variabilitythe level of genetic diversity among 93 alfalfa genotypes previously selected as parents

  15. Neutron monitor yield function: New improved computations A. L. Mishev,1,3

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    Neutron monitor yield function: New improved computations A. L. Mishev,1,3 I. G. Usoskin,1,2 and G June 2013. [1] A ground-based neutron monitor (NM) is a standard tool to measure cosmic ray (CR experimental data. Citation: Mishev, A. L., I. G. Usoskin, and G. A. Kovaltsov (2013), Neutron monitor yield

  16. Comparison Of Expected Yields For Light Radioactive Beams At SPIRAL-1 And 2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Comparison Of Expected Yields For Light Radioactive Beams At SPIRAL-1 And 2 Saint-Laurent M of this contribution is the comparison of yields expected for light radioactive beams at SPIRAL-1 and after an upgrade, Switzerland. Abstract. Light-particles stable high-intensity beams (p, d, 3,4 He...) will be available from

  17. Cotton Yield Mapping and Guidance Systems on the Texas High Plains

    E-Print Network [OSTI]

    Mukhtar, Saqib

    Cotton Yield Mapping and Guidance Systems on the Texas High Plains Randy Boman, Alan Brashears variability. A yield mapping system measures and records the amount of cotton being harvested at any point in the transport posi- tion. This system has the advantage of directly measuring the harvested cotton in the basket

  18. Assessing the individual contributions of variations in temperature, solar radiation and precipitation to crop yield

    E-Print Network [OSTI]

    Robertson, Andrew W.

    Short Title:15 Contributions, Temperature, Solar radiation, Precipitation, Crop yield16 Page 1 of 41 The results showed that year-to-year variations in temperature, solar radiation and precipitation28 in solar radiation showed the strongest isolated impact on simulated yields.34 Its decrease caused

  19. The results of a world-wide study on yield improvement are presented. Die yields col-lected from 21 fabs are transformed via a logit formula and compared. The die yields and

    E-Print Network [OSTI]

    California at Berkeley, University of

    -aided manufacturing practices and statistical process control practices in addition to commonly cited practices improvement rates of the fabs are compared, and manufacturing yield improve- ment practices are evaluated such as particle control and advanced manufacturing technology. #12;Introduction The results of a world-wide study

  20. Management and Performance PERFORMANCE REPORTING AND PLANNING

    E-Print Network [OSTI]

    AND PLANNING M&P-144 the Agency's workforce is well informed of major Agency initiatives and human capitalManagement and Performance PERFORMANCE REPORTING AND PLANNING M&P-143 Strategic Goal 5: Enable.1: IDENTIFY, CULTIVATE, AND SUSTAIN A DIVERSE WORKFORCE AND INCLUSIVE WORK ENVIRONMENT THAT IS NEEDED

  1. Gasification performance of switchgrass pretreated with torrefaction and densification

    SciTech Connect (OSTI)

    Jaya Shankar Tumuluru; Various

    2014-08-01T23:59:59.000Z

    The purpose of this study was to investigate gasification performance of four switchgrass pretreatments (torrefaction at 230 and 270 °C, densification, and combined torrefaction and densification) and three gasification temperatures (700, 800 and 900 °C). Gasification was performed in a fixed-bed externally heated reactor with air as an oxidizing agent. Switchgrass pretreatment and gasification temperature had significant effects on gasification performance such as gas yields, syngas lower heating value (LHV), and carbon conversion and cold gas efficiencies. With an increase in the gasification temperature, yields of H2 and CO, syngas LHV, and gasifier efficiencies increased whereas CH4, CO2 and N2 yields decreased. Among all switchgrass pretreatments, gasification performance of switchgrass with combined torrefaction and densification was the best followed by that of densified, raw and torrefied switchgrass. Gasification of combined torrefied and densified switchgrass resulted in the highest yields of H2 (0.03 kg/kg biomass) and CO (0.72 kg/kg biomass), highest syngas LHV (5.08 MJ m-3), CCE (92.53%), and CGE (68.40%) at the gasification temperature of 900 °C.

  2. Estimation of Photovoltaic System Reliability and Performance Metrics

    E-Print Network [OSTI]

    Liberzon, Daniel

    1 Estimation of Photovoltaic System Reliability and Performance Metrics Sairaj V. Dhople, Student reliability and perfor- mance analysis of grid-tied photovoltaic (PV) systems is for- mulated using Markov and energy yield, and reliability metrics such as availability. The paper also provides an analytical method

  3. Rapid selection and identification of Miscanthus genotypes with enhanced glucan and xylan yields from hydrothermal pretreatment followed by enzymatic hydrolysis

    E-Print Network [OSTI]

    Zhang, Taiying; Wyman, Charles E; Jakob, Katrin; Yang, Bin

    2012-01-01T23:59:59.000Z

    sugar yields with various biomass feedstocks, such as cornand other selected biomass feedstocks Biomass Composition (%

  4. Precision Measurement of the Ratio B(t{yields}Wb)/B(t{yields}Wq) and Extraction of V{sub tb}

    SciTech Connect (OSTI)

    Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P. [University of Oklahoma, Norman, Oklahoma 73019 (United States); Acharya, B. S.; Banerjee, S.; Mondal, N. K. [Tata Institute of Fundamental Research, Mumbai (India); Adams, M.; Bazterra, V. [University of Illinois at Chicago, Chicago, Illinois 60607 (United States)

    2011-09-16T23:59:59.000Z

    We present a measurement of the ratio of top quark branching fractions R=B(t{yields}Wb)/B(t{yields}Wq), where q can be a d, s, or b quark, in the lepton+jets and dilepton tt final states. The measurement uses data from 5.4 fb{sup -1} of pp collisions collected with the D0 detector at the Fermilab Tevatron Collider. We measure R=0.90{+-}0.04, and we extract the Cabibbo-Kobayashi-Maskawa (CKM) matrix element |V{sub tb}| as |V{sub tb}|=0.95{+-}0.02, assuming unitarity of the 3x3 CKM matrix.

  5. Branching fraction and charge asymmetry measurements in B{yields}J/{psi}{pi}{pi} decays

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Garra Tico, J.; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Eigen, G.; Ofte, I.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

    2007-08-01T23:59:59.000Z

    We study the decays B{sup 0}{yields}J/{psi}{pi}{sup +}{pi}{sup -} and B{sup +}{yields}J/{psi}{pi}{sup +}{pi}{sup 0}, including intermediate resonances, using a sample of 382x10{sup 6} BB pairs recorded by the BABAR detector at the PEP-II e{sup +}e{sup -} B factory. We measure the branching fractions B(B{sup 0}{yields}J/{psi}{rho}{sup 0})=(2.7{+-}0.3{+-}0.2)x10{sup -5} and B(B{sup +}{yields}J/{psi}{rho}{sup +})=(5.0{+-}0.7{+-}0.3)x10{sup -5}. We also set the following upper limits at the 90% confidence level: B(B{sup 0}{yields}J/{psi}{pi}{sup +}{pi}{sup -} nonresonant)<1.2x10{sup -5}, B(B{sup 0}{yields}J/{psi}f{sub 2})<4.6x10{sup -6}, and B(B{sup +}{yields}J/{psi}{pi}{sup +}{pi}{sup 0} nonresonant)<7.3x10{sup -6}. We measure the charge asymmetry in charged B decays to J/{psi}{rho} to be -0.11{+-}0.12{+-}0.08.

  6. Delayed neutron yield from fast neutron induced fission of sup 2 sup 3 sup 8 U

    E-Print Network [OSTI]

    Piksaikin, V M; Isaev, S G; Kazakov, L E; Roshchenko, V A; Tertytchnyi, R G

    2001-01-01T23:59:59.000Z

    The measurements of the total delayed neutron yield from fast neutron induced fission of sup 2 sup 3 sup 8 U were made. The experimental method based on the periodic irradiation of the fissionable sample by neutrons from a suitable nuclear reaction had been employed. The preliminary results on the energy dependence of the total delayed neutron yield from fission of sup 2 sup 3 sup 8 U are obtained. According to the comparison of experimental data with our prediction based on correlation properties of delayed neutron characteristics, it is concluded that the value of the total delayed neutron yield near the threshold of (n,f) reaction is not a constant.

  7. Measurement of Pressure Dependent Fluorescence Yield of Air: Calibration Factor for UHECR Detectors

    SciTech Connect (OSTI)

    Belz, J.W.; Burt, G.W.; Cao, Z.; Chang, F.Y.; Chen, C.C.; Chen, C.W.; Chen, P.; Field, C.; Findlay, J.; Huntemeyer, Petra; Huang, M.A.; Hwang, W.-Y.P.; Iverson, R.; Jones, B.F.; Jui, C.C.H.; Kirn, M.; Lin, G.-L.; Loh, E.C.; Maestas, M.M.; Manago, N.; Martens, K.; /Montana U. /Utah U. /Taiwan, Natl. Taiwan U. /SLAC /Rutgers U., Piscataway

    2005-07-06T23:59:59.000Z

    In a test experiment at the Final Focus Test Beam of the Stanford Linear Accelerator Center, the fluorescence yield of 28.5 GeV electrons in air and nitrogen was measured. The measured photon yields between 300 and 400 nm at 1 atm and 29 C are Y(760 Torr){sup air} = 4.42 {+-} 0.73 and Y(760 Torr){sup N{sub 2}} = 29.2 {+-} 4.8 photons per electron per meter. Assuming that the fluorescence yield is proportional to the energy deposition of a charged particle traveling through air, good agreement with measurements at lower particle energies is observed.

  8. Comparison of product yields obtained from the New Albany Shale by different rapid heating retorting procedures

    SciTech Connect (OSTI)

    Rubel, A.M.; Audeh, C.A.

    1985-02-01T23:59:59.000Z

    Seven samples of New Albany Shale, Clegg Creek Member were independently evaluated for possible oil yield enhancement above Fischer Assay. Bulk samples were crushed, blended, sieved and riffled into representative aliquots and then divided between two laboratories. Samples were evaluated by the ASTM Fischer Assay and the Rapid Heat Up Assay (RHU). Results provided the first case of the independent evaluation of oil yield enhancement over Fischer Assay (FA) for eastern US oil shales carried out by different laboratories working on the same samples. Oil yield enhancements were obtained by both laboratories. Fischer Assay results were remarkably comparable indicating that reproducibility is possible for eastern US shale. Results from the assays are given.

  9. Yield strength dependence on strain rate of molybdenum-alloy nanofibers

    SciTech Connect (OSTI)

    Loya, P. E.; Peng, C.; Zhang, P.; Zhang, J.; Lou, J. [Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005 (United States); Xia, Y. Z. [Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States); Bei, H. [Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); George, E. P.; Gao, Y. F. [Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States); Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

    2014-06-23T23:59:59.000Z

    The yield strength dependence on strain rate was studied for molybdenum-alloy nanofibers with varying initial dislocation density at three different pre-strain levels. In-situ tensile experiments at three displacement rates were carried out in a scanning electron microscope. Yield strength and its scatter decreased as a function of the pre-strain level for different displacement rates. A statistical model was used to analyze the results, and a negative strain rate dependence was inferred from the yield experiments. This finding suggests the need for theoretical investigations since classical models such as dynamic strain aging may have limitations at such nanoscales.

  10. The influence of date and rate of seeding wheat on yield of grain

    E-Print Network [OSTI]

    Shamma, Wifki Shakir El-

    1953-01-01T23:59:59.000Z

    in precipitation with slight increase 1n temperature caused a great decrease in number of' tillers. rh1s agrees with Smith (33), who found a correlation of 0 . 92 between rain- fall and amount, of tillering. Hei ht of Plant Average height of shoot is presented... grain yield per plant in grams is presented in Table 18 and tne analysis of va. " iance in Table 19 . The delay 1n sowing had a deleterious effect on the yield per plant. The results we'e significant at . 05 level. The fall 1n yield was conspicuous...

  11. Spacing of Rows in Corn and Its Effect Upon Grain Yield.

    E-Print Network [OSTI]

    Conner, A. B. (Arthur Benjamin)

    1918-01-01T23:59:59.000Z

    , was added as a third distribution. The results for the five-year period are shown in the follnn.ing table. S,PACING ROWS IN CORN AND EFFECT UPON GRAIN YIELD 9 hould be pointed out that the low ~ield from the six-foot spacing I2 mss, undouhteclly, due... comparable. It is noticeable that the grain yield each pear is consistently in favor of the three-foot spacing, as is also the average for the whole period of five years. These results indicate that the actual yield in grain secure:l from the three-foot...

  12. A Service Oriented Architecture for Exploring High Performance Distributed Power Models

    SciTech Connect (OSTI)

    Liu, Yan; Chase, Jared M.; Gorton, Ian

    2012-11-12T23:59:59.000Z

    Power grids are increasingly incorporating high quality, high throughput sensor devices inside power distribution networks. These devices are driving an unprecedented increase in the volume and rate of available information. The real-time requirements for handling this data are beyond the capacity of conventional power models running in central utilities. Hence, we are exploring distributed power models deployed at the regional scale. The connection of these models for a larger geographic region is supported by a distributed system architecture. This architecture is built in a service oriented style, whereby distributed power models running on high performance clusters are exposed as services. Each service is semantically annotated and therefore can be discovered through a service catalog and composed into workflows. The overall architecture has been implemented as an integrated workflow environment useful for power researchers to explore newly developed distributed power models.

  13. Search for Invisible Decays of {eta} and {eta}{sup '} in J/{psi}{yields}{phi}{eta} and {phi}{eta}{sup '}

    SciTech Connect (OSTI)

    Ablikim, M.; Bai, J. Z.; Bian, J. G.; Cai, X.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chu, Y. P.; Cui, X. Z.; Deng, Z. Y.; Du, S. X.; Fang, J.; Fu, C. D.; Gao, C. S.; Gu, S. D.; Guo, Y. N.; Guo, Y. Q.; He, K. L. [Institute of High Energy Physics, Beijing 100049 (China)] (and others)

    2006-11-17T23:59:59.000Z

    Using a data sample of 58x10{sup 6} J/{psi} decays collected with the Beijing Spectrometer II detector at the Beijing Electron Positron Collider, searches for invisible decays of {eta} and {eta}{sup '} in J/{psi} to {phi}{eta} and {phi}{eta}{sup '} are performed. The {phi} signals, which are reconstructed in K{sup +}K{sup -} final states, are used to tag the {eta} and {eta}{sup '} decays. No signals are found for the invisible decays of either {eta} or {eta}{sup '}, and upper limits at the 90% confidence level are determined to be 1.65x10{sup -3} for the ratio (B({eta}{yields}invisible)/B({eta}{yields}{gamma}{gamma})) and 6.69x10{sup -2} for (B({eta}{sup '}{yields}invisible)/B({eta}{sup '}{yields}{gamma}{gamma})). These are the first searches for {eta} and {eta}{sup '} decays into invisible final states.

  14. Stochastic performance analysis and staged control system designs for space based interferometers

    E-Print Network [OSTI]

    Liu, Kuo-Chia, 1973-

    2003-01-01T23:59:59.000Z

    Space based interferometry missions have the potential to revolutionize astrometry, providing observations of unprecedented accuracy. Realizing the full potential of these interferometers poses several significant technological ...

  15. Superior Energy Performance Video

    Broader source: Energy.gov [DOE]

    Energy Efficiency, Competitiveness, Transparency. These are the tenets of the Superior Energy Performance® (SEP™). SEP is a market-based program that helps manufacturers to improve their plants' energy performance, which in turn helps to make them more competitive.

  16. IC performance prediction system

    E-Print Network [OSTI]

    Ramakrishnan, Venkatakrishnan

    1996-01-01T23:59:59.000Z

    electrical test data, supplemented with in-line and in-situ data to make performance predictions. Based on the waterlevel parametric test, we will predict chip performance in order to select the appropriate package. Predictions that fall outside acceptable...

  17. Reliability-yield allocation for semiconductor integrated circuits: modeling and optimization

    E-Print Network [OSTI]

    Ha, Chunghun

    2005-11-01T23:59:59.000Z

    This research develops yield and reliability models for fault-tolerant semiconductor integrated circuits and develops optimization algorithms that can be directly applied to these models. Since defects cause failures in microelectronics systems...

  18. Engineering design automation tool for yield learning model for IC packaging

    E-Print Network [OSTI]

    Sarwar, Abul Kalam

    2012-06-07T23:59:59.000Z

    The leading edge of semiconductor manufacturing is the high yield production of semiconductor devices of which integrated circuit packaging has a continuous increasing demand along with integrated circiut functionality. IC packaging manufacturing...

  19. Quantitative trait loci(qtl) analysis of yield components and heat tolerance in wheat (Triticum aestivum)

    E-Print Network [OSTI]

    Do, Jung Hwa

    2009-05-15T23:59:59.000Z

    component traits in the 62 RILs in four individual environments?.. 94 Table XV Summary of QTLs identified by composite interval mapping for heat tolerance based on simple score of yield and its component traits in the 62 RILs in four...

  20. Integrating Photovoltaic Inverter Reliability into Energy Yield Estimation with Markov Models

    E-Print Network [OSTI]

    Liberzon, Daniel

    Integrating Photovoltaic Inverter Reliability into Energy Yield Estimation with Markov Models@illinois.edu Abstract-- Markov reliability models to estimate Photovoltaic (PV) inverter reliability of the inverters. Keywords-Photovoltaic energy conversion, Markov reliability models, utility-interactive inverters

  1. Yield and leaf blade area comparisons of extra leafy to normal leafed maize (Zea mays L.)

    E-Print Network [OSTI]

    Rushing, Ronald Wayne

    2012-06-07T23:59:59.000Z

    relationships between extra leaf production and rain yield of the leafy 9 hybrids. Fourteen hybrids were compared, including, eight Lfy and six normal-leafed industry standard hybrids. The fourteen hybrids were replicated four times in a randomized block design...

  2. Equivalent plastic strain for the Hill's yield criterion under general three-dimensional loading

    E-Print Network [OSTI]

    Colby, Rebecca B. (Rebecca Bea)

    2013-01-01T23:59:59.000Z

    In many industrial applications, an accurate model of the initial yield surface of materials with a significant degree of anisotropy is required. Anisotropy due to preferred orientation can occur in sheet metal parts used ...

  3. Calibration of Stochastic Convenience Yield Models For Crude Oil Using the Kalman Filter

    E-Print Network [OSTI]

    Vuik, Kees

    Calibration of Stochastic Convenience Yield Models For Crude Oil Using the Kalman Filter A and variance of the Ornstein-Uhlenbeck process . . . . . . . . . . . . . . . . . . . . 7 2.2 Market price of a future delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.4 Price valuation

  4. Vegetation and wildfire controls on sediment yield in bedrock Roman A. DiBiase1

    E-Print Network [OSTI]

    DiBiase, Roman A.

    sensitive to climate, tectonics, and wildfire. Predicting landscape response to these pertur- bations demands a quantitative understanding of erosion processes. However, existing models for hillslope sediment scale, our measurements match records of postfire sediment yield from nearby retention basins. Contrary

  5. Measuring the absolute DT neutron yield using the Magnetic Recoil Spectrometer at OMEGA and the NIF

    SciTech Connect (OSTI)

    Mackinnon, A; Casey, D; Frenje, J A; Johnson, M G; Seguin, F H; Li, C K; Petrasso, R D; Glebov, V Y; Katz, J; Knauer, J; Meyerhofer, D; Sangster, T; Bionta, R; Bleuel, D; Hachett, S P; Hartouni, E; Lepape, S; Mckernan, M; Moran, M; Yeamans, C

    2012-05-03T23:59:59.000Z

    A Magnetic Recoil Spectrometer (MRS) has been installed and extensively used on OMEGA and the National Ignition Facility (NIF) for measurements of the absolute neutron spectrum from inertial confinement fusion (ICF) implosions. From the neutron spectrum measured with the MRS, many critical implosion parameters are determined including the primary DT neutron yield, the ion temperature, and the down-scattered neutron yield. As the MRS detection efficiency is determined from first principles, the absolute DT neutron yield is obtained without cross-calibration to other techniques. The MRS primary DT neutron measurements at OMEGA and the NIF are shown to be in excellent agreement with previously established yield diagnostics on OMEGA, and with the newly commissioned nuclear activation diagnostics on the NIF.

  6. Comparison of biological and chemical phosphorus fertilizers on rapeseed yield in Iran

    E-Print Network [OSTI]

    Madani, hamid; Kelarestaghi, Kioomars Bakhsh; Malboobi, Mohammad Ali

    2009-01-01T23:59:59.000Z

    PSB) on Potato Yield at Iran Environment. Procceding of 18Arak Islamic Azad University, Iran (Table 1) in the 2006/07Arak Islamic Azad University, Iran. Physical properties 0-30

  7. New correlations for dew-point, specific gravity and producing yield for gas condensates

    E-Print Network [OSTI]

    Ovalle Cortissoz, Adriana Patricia

    2002-01-01T23:59:59.000Z

    This work presents four newly developed correlations to estimate dew-point pressure, current specific gravity and producing yield of gas condensate reservoirs. The first correlation may be used to predict the dew-point pressure of the reservoir gas...

  8. Retail yields and fabrication times for beef subprimals from two grade groups

    E-Print Network [OSTI]

    Voges, Kristin Leigh

    2005-02-17T23:59:59.000Z

    Davey B. Griffin (Chair of Committee) (Member) _____________________________ _____________________________ Julie F. Harlin Chris L. Skaggs (Member) (Member... (s) for fabrication of Beef Rib, Blade Meat (IMPS #109B) from different USDA quality grade groups..............................................................................................17 2 Least squares means of retail yields...

  9. E-Print Network 3.0 - ada2p yields insight Sample Search Results

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

    up to 70 %-wt. In this process, the biomass is heated to temperatures of 400... hydrotreating catalysts with respect to oil yield (up to 60 %-wt.) and deoxygenation level (up...

  10. A viscoplasticity model with an enhanced control of the yield surface distortion

    E-Print Network [OSTI]

    Shutov, A V

    2012-01-01T23:59:59.000Z

    A new model of metal viscoplasticity, which takes combined isotropic, kinematic, and distortional hardening into account, is presented. The basic modeling assumptions are illustrated using a new two-dimensional rheological analogy. This demonstrative rheological model is used as a guideline for the construction of constitutive relations. The nonlinear kinematic hardening is captured using the well-known Armstrong-Frederick approach. The distortion of the yield surface is described with the help of a so-called distortional backstress. A distinctive feature of the model is that any smooth convex saturated form of the yield surface which is symmetric with respect to the loading direction can be captured. In particular, an arbitrary sharpening of the saturated yield locus in the loading direction combined with a flattening on the opposite side can be covered. Moreover, the yield locus evolves smoothly and its convexity is guaranteed at each hardening stage. A strict proof of the thermodynamic consistency is provi...

  11. Shear-Transformation-Zone Theory of Yielding in Athermal Amorphous Materials

    E-Print Network [OSTI]

    J. S. Langer

    2015-01-28T23:59:59.000Z

    Yielding transitions in athermal amorphous materials resemble critical phenomena. Historically, they have been described by the Herschel-Bulkley rheological formula, which implies singular behaviors at yield points. In this paper, I examine this class of phenomena using an elementary version of the thermodynamic shear-transformation-zone (STZ) theory, focusing on the role of the effective disorder temperature, and paying special attention to scaling and dimensional arguments. I find a wide variety of Herschel-Bulkley-like rheologies but, for fundamental reasons not specific to the STZ theory, conclude that the yielding transition is not truly critical. In particular, there is a correlation length that grows rapidly, but ultimately saturates near the yield point.

  12. Forecasting the Standard & Poor's 500 stock index futures price: interest rates, dividend yields, and cointegration

    E-Print Network [OSTI]

    Fritsch, Roger Erwin

    1997-01-01T23:59:59.000Z

    forward price series is constructed using interest rate and dividend yield data. Out-of-sample forecasts from error correction models are compared to those from vector autoregressions (VAR) fit to levels and VARs fit to first differences. This comparison...

  13. Author's personal copy Unified behaviour of maximum soot yields of methane, ethane and propane

    E-Print Network [OSTI]

    Gülder, �mer L.

    Author's personal copy Unified behaviour of maximum soot yields of methane, ethane and propane the current study and the previous measurements in similar flames with methane, ethane, and propane flames

  14. High Performance Home Cost Performance Trade-Offs: Production...

    Energy Savers [EERE]

    High Performance Home Cost Performance Trade-Offs: Production Builders - Building America Top Innovation High Performance Home Cost Performance Trade-Offs: Production Builders -...

  15. Fission Fragment Distributions and Delayed Neutron Yields from Photon-Induced-Fission

    SciTech Connect (OSTI)

    David, J.-C.; Dore, D.; Giacri-Mauborgne, M.-L.; Ridikas, D.; Lauwe, A. van [DSM/DAPNIA/SPhN, CEA/Saclay, F-91191 Gif-sur-Yvette cedex (France)

    2005-05-24T23:59:59.000Z

    Fission fragment distributions and delayed neutron yields for 235U and 238U are provided by a complete modelization of the photofission process below 25 MeV. The absorption cross-section parameterization and the fission fragment distributions are given and compared to experimental data. The delayed neutron yields and the half-lives in terms of six groups are presented and compared to data obtained with a bremsstrahlung spectrum of 15 MeV.

  16. CVD Growth of Carbon Nanostructures from Zirconia: Mechanisms and a Method for Enhancing Yield

    E-Print Network [OSTI]

    Kudo, Akira; Steiner, Stephen A., III; Bayer, Bernhard C.; Kidambi, Piran R.; Hofmann, Stephan; Strano, Michael S.; Wardle, Brian L.

    2014-12-09T23:59:59.000Z

    the growth is due to zirconia nanoparticles. Recently, morphologies of carbon nanostructures similar to those investigated in this work have been reported in solid oxide fuel cells (SOFCs) comprised of yttria-stabilized zirconia.63,64 ? CONCLUSION Distinct... and reproduction in any medium, provided the author and source are cited. etc.). Despite attempts to improve yield via parametric optimization of process conditions,18 a reliable process for reproducible growth of CNTs and CNFs that yields comparable areal density...

  17. Application of a water rights analysis program to reservoir system yield calculations

    E-Print Network [OSTI]

    Walls, William Brian

    1988-01-01T23:59:59.000Z

    corrected to approximate naturalized flows. As water management becomes more critical, it is necessary to gage the effect of governmental institutions on reservoir yields. In Texas and elsewhere, water users are governed by a system of water rights.... The effect of this system on firm yields must be quantified in order to provide effective water management. This thesis documents research into the effect of the Texas water rights system on the Brazos River Authority reservoir system. A new generalized...

  18. Asymmetric Yield Function Based on the Stress Invariants for Pressure Sensitive Metals

    SciTech Connect (OSTI)

    Jeong Wahn Yoon; Yanshan Lou; Jong Hun Yoon; Michael V. Glazoff

    2014-05-01T23:59:59.000Z

    A general asymmetric yield function is proposed with dependence on the stress invariants for pressure sensitive metals. The pressure sensitivity of the proposed yield function is consistent with the experimental result of Spitzig and Richmond (1984) for steel and aluminum alloys while the asymmetry of the third invariant is preserved to model strength differential (SD) effect of pressure insensitive materials. The proposed yield function is transformed in the space of the stress triaxaility, the von Mises stress and the normalized invariant to theoretically investigate the possible reason of the SD effect. The proposed plasticity model is further extended to characterize the anisotropic behavior of metals both in tension and compression. The extension of the yield function is realized by introducing two distinct fourth-order linear transformation tensors of the stress tensor for the second and third invariants, respectively. The extended yield function reasonably models the evolution of yield surfaces for a zirconium clock-rolled plate during in-plane and through-thickness compression reported by Plunkett et al. (2007). The extended yield function is also applied to describe the orthotropic behavior of a face-centered cubic metal of AA 2008-T4 and two hexagonal close-packed metals of high-purity-titanium and AZ31 magnesium alloy. The orthotropic behavior predicted by the generalized model is compared with experimental results of these metals. The comparison validates that the proposed yield function provides sufficient predictability on SD effect and anisotropic behavior both in tension and compression. When it is necessary to consider r-value anisotropy, the proposed function is efficient to be used with nonassociated flow plasticity by introducing a separate plastic potential for the consideration of r-values as shown in Stoughton & Yoon (2004, 2009).

  19. Search for B{sup 0}{yields}J/{psi}{phi} decays

    SciTech Connect (OSTI)

    Liu, Y.; Iwabuchi, M.; Kim, Y. J. [Graduate University for Advanced Studies, Hayama (Japan); Trabelsi, K.; Adachi, I.; Dalseno, J.; Haba, J.; Hazumi, M.; Itoh, R.; Iwasaki, Y.; Katayama, N.; Kichimi, H.; Krokovny, P.; Nakao, M.; Nishida, S.; Nozaki, T.; Ozaki, H.; Sakai, Y.; Schuemann, J.; Takasaki, F. [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (and others)

    2008-07-01T23:59:59.000Z

    We report a search for the decay B{sup 0}{yields}J/{psi}{phi}, using a sample of 657x10{sup 6} BB pairs collected with the Belle detector at the {upsilon}(4S) resonance. No statistically significant signal is found and an upper limit for the branching fraction is determined to be B(B{sup 0}{yields}J/{psi}{phi})<9.4x10{sup -7} at 90% confidence level.

  20. A conceptual model for determining yield loss due to drought stress in sorghum

    E-Print Network [OSTI]

    Koch, Paul Robert

    1987-01-01T23:59:59.000Z

    A CONCEPTUAL MODEL FOR DETERMINING YIELD LOSS DUE TO DROUGHT STRESS IN SORGHUM A Thesis by PAUL ROBERT KOCH Submitted to the Graduate College of Texas AkM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1987 Major Subject: Agricultural Engineering A CONCEPTUAL MODEL FOR DETERMINING YIELD LOSS DUE TO DROUGHT STRESS IN SORGHUM A thesis by PAUL ROBERT KOCH Approved as to style and content by: Marshall J. McFarland (Chair of Committee...

  1. IR DIAL performance modeling

    SciTech Connect (OSTI)

    Sharlemann, E.T.

    1994-07-01T23:59:59.000Z

    We are developing a DIAL performance model for CALIOPE at LLNL. The intent of the model is to provide quick and interactive parameter sensitivity calculations with immediate graphical output. A brief overview of the features of the performance model is given, along with an example of performance calculations for a non-CALIOPE application.

  2. Performance Computing with

    E-Print Network [OSTI]

    Martin, Stephen John

    High Performance Computing with Iceberg. Mike Griffiths Bob Booth November 2005 AP-Unix4 © University of Sheffield #12;Bob Booth High Performance Computing with Iceberg Contents 1. REVIEW OF AVAILABLE 23 7.1 USING FUSE TO MOUNT FILE SYSTEMS ON ICEBERG 23 2 #12;Bob Booth High Performance Computing

  3. High Performance Computing in

    E-Print Network [OSTI]

    Stamatakis, Alexandros

    High Performance Computing in Bioinformatics Thomas Ludwig (t.ludwig@computer.org) Ruprecht PART I: High Performance Computing Thomas Ludwig PART II: HPC Computing in Bioinformatics Alexandros #12;© Thomas Ludwig, Alexandros Stamatakis, GCB'04 3 PART I High Performance Computing Introduction

  4. Mass production of multi-wall carbon nanotubes by metal dusting process with high yield

    SciTech Connect (OSTI)

    Ghorbani, H. [School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran (Iran, Islamic Republic of)] [School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran (Iran, Islamic Republic of); Rashidi, A.M., E-mail: Rashidiam@ripi.ir [Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, P.O. Box 14665-1998, Tehran (Iran, Islamic Republic of); Rastegari, S.; Mirdamadi, S. [School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran (Iran, Islamic Republic of)] [School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran (Iran, Islamic Republic of); Alaei, M. [Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, P.O. Box 14665-1998, Tehran (Iran, Islamic Republic of)] [Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, P.O. Box 14665-1998, Tehran (Iran, Islamic Republic of)

    2011-05-15T23:59:59.000Z

    Research highlights: {yields} Synthesis of carbon nanotubes over Fe-Ni nanoparticles supported alloy 304L. {yields} Production of carbon nanotubes with high yield (700-1000%) and low cost catalyst. {yields} Optimum growth condition is CO/H{sub 2} = 1/1, 100 cm{sup 3}/min, at 620 {sup o}C under long term repetitive thermal cycling. {yields} Possibility of the mass production by metal dusting process with low cost. -- Abstract: Carbon nanotube materials were synthesized over Fe-Ni nanoparticles generated during disintegration of the surface of alloy 304L under metal dusting environment. The metal dusting condition was simulated and optimized through exposing stainless steel samples during long term repetitive thermal cycling in CO/H{sub 2} = 1/1, total gas flow rate 100 cm{sup 3}/min, at 620 {sup o}C for 300 h. After reaction, surface morphology of the samples and also carbonaceous deposition which had grown on sample surfaces were examined by stereoscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Results revealed that multi-wall carbon nanotubes could be formed over nanocatalyst generated on the alloy surface by exploiting metal dusting process. By optimization of reaction parameters the yields of carbon nanotube materials obtained were 700-1000%. Also it has been shown herein that the amount of carbon nanotube materials remarkably increases when the reaction time is extended up to 300 h, indicating a possibility of the mass production by this easy method.

  5. 5CAL PERFORMANCES CAL PERFORMANCES PRESENTS

    E-Print Network [OSTI]

    Mofrad, Mohammad R. K.

    Joshua Gersen, conductor red fish blue fish American String Quartet Daniel Avshalomov Laurie Carney Williams, bass-baritone Hrabba Atladottir, violin Colin Fowler, organ & piano Sycil Mathai, trumpet Yegor Auditorium & Faculty Glade Ojai North! FESTIVAL SCHEDULE Wednesday, June 12, 6pm red fish blue fish performs

  6. Complier-Directed Automatic Performance Tuning (TUNE) Final Report

    SciTech Connect (OSTI)

    Chame, Jacqueline [USC-ISI] [USC-ISI

    2013-06-07T23:59:59.000Z

    TUNE was created to develop compiler-directed performance tuning technology targeting the Cray XT4 system at Oak Ridge. TUNE combines compiler technology for model-guided empirical optimization for memory hierarchies with SIMD code generation. The goal of this performance-tuning technology is to yield hand-tuned levels of performance on DOE Office of Science computational kernels, while allowing application programmers to specify their computations at a high level without requiring manual optimization. Overall, TUNE aims to make compiler technology for SIMD code generation and memory hierarchy optimization a crucial component of high-productivity Petaflops computing through a close collaboration with the scientists in national laboratories.

  7. Study of calculated and measured time dependent delayed neutron yields. [TX, for calculating delayed neutron yields; MATINV, for matrix inversion; in FORTRAN for LSI-II minicomputer

    SciTech Connect (OSTI)

    Waldo, R.W.

    1980-05-01T23:59:59.000Z

    Time-dependent delayed neutron emission is of interest in reactor design, reactor dynamics, and nuclear physics studies. The delayed neutrons from neutron-induced fission of /sup 232/U, /sup 237/Np, /sup 238/Pu, /sup 241/Am, /sup 242m/Am, /sup 245/Cm, and /sup 249/Cf were studied for the first time. The delayed neutron emission from /sup 232/Th, /sup 233/U, /sup 235/U, /sup 238/U, /sup 239/Pu, /sup 241/Pu, and /sup 242/Pu were measured as well. The data were used to develop an empirical expression for the total delayed neutron yield. The expression gives accurate results for a large variety of nuclides from /sup 232/Th to /sup 252/Cf. The data measuring the decay of delayed neutrons with time were used to derive another empirical expression predicting the delayed neutron emission with time. It was found that nuclides with similar mass-to-charge ratios have similar decay patterns. Thus the relative decay pattern of one nuclide can be established by any measured nuclide with a similar mass-to-charge ratio. A simple fission product yield model was developed and applied to delayed neutron precursors. It accurately predicts observed yield and decay characteristics. In conclusion, it is possible to not only estimate the total delayed neutron yield for a given nuclide but the time-dependent nature of the delayed neutrons as well. Reactors utilizing recycled fuel or burning actinides are likely to have inventories of fissioning nuclides that have not been studied until now. The delayed neutrons from these nuclides can now be incorporated so that their influence on the stability and control of reactors can be delineated. 8 figures, 39 tables.

  8. Developing Human Performance Measures

    SciTech Connect (OSTI)

    Jeffrey Joe; Bruce Hallbert; Larry Blackwood; Donald Dudehoeffer; Kent Hansen

    2006-05-01T23:59:59.000Z

    Through the reactor oversight process (ROP), the U.S. Nuclear Regulatory Commission (NRC) monitors the performance of utilities licensed to operate nuclear power plants. The process is designed to assure public health and safety by providing reasonable assurance that licensees are meeting the cornerstones of safety and designated crosscutting elements. The reactor inspection program, together with performance indicators (PIs), and enforcement activities form the basis for the NRC’s risk-informed, performance based regulatory framework. While human performance is a key component in the safe operation of nuclear power plants and is a designated cross-cutting element of the ROP, there is currently no direct inspection or performance indicator for assessing human performance. Rather, when human performance is identified as a substantive cross cutting element in any 1 of 3 categories (resources, organizational or personnel), it is then evaluated for common themes to determine if follow-up actions are warranted. However, variability in human performance occurs from day to day, across activities that vary in complexity, and workgroups, contributing to the uncertainty in the outcomes of performance. While some variability in human performance may be random, much of the variability may be attributed to factors that are not currently assessed. There is a need to identify and assess aspects of human performance that relate to plant safety and to develop measures that can be used to successfully assure licensee performance and indicate when additional investigation may be required. This paper presents research that establishes a technical basis for developing human performance measures. In particular, we discuss: 1) how historical data already gives some indication of connection between human performance and overall plant performance, 2) how industry led efforts to measure and model human performance and organizational factors could serve as a data source and basis for a framework, 3) how our use of modeling and simulation techniques could be used to develop and validate measures of human performance, and 4) what the possible outcomes are from this research as the modeling and simulation efforts generate results.

  9. Commissioning for High Performance

    E-Print Network [OSTI]

    Meline, K.

    2013-01-01T23:59:59.000Z

    , including energy efficiency, durability, life-cycle performance, and occupant productivity” • ASHRAE Guideline 32 - Sustainable High-Performance Operations and Maintenance A high-performance building “consistently delivers a highly productive environment... plumbing fixtures • Renewable energy sources such as photovoltaic (PV) systems • Building envelope: Design reviews and field testing • Indoor Air Quality (IAQ): Ventilation that meets or exceeds ASHRAE 62.1 • Natural lighting & light pollution • System...

  10. BOMA 360 Performance Program

    E-Print Network [OSTI]

    Reihl, K.; Tullos, A.

    2012-01-01T23:59:59.000Z

    Introducing? BOMA 360 Performance Program What we will cover ? What is the 360 Performance Program? ? Why did BOMA launch this program? ? What are the application questions and required documentation? ? What is the review and approval process... aspects of Building Management and Operations What is the BOMA 360 Performance Program? ? Online application with independent review and evaluation of 6 major components ? Building Operations & Management ? Life Safety/Security/Risk Management...

  11. Monthly Performance Report

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

    Development. PMB Performance Measurement Baseline. PMTO Portfolio Management Task Order. SWS Site-Wide Services. EAC Estimate at Completion * Funds received through Mod...

  12. .NET High Performance Computing.

    E-Print Network [OSTI]

    Ou, Hsuan-Hsiu

    2012-01-01T23:59:59.000Z

    ?? Graphics Processing Units (GPUs) have been extensively applied in the High Performance Computing (HPC) community. HPC applications require additional special programming environments to improve… (more)

  13. Guidelines for Performance Measurement

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

    1996-06-30T23:59:59.000Z

    Federal agencies, states, businesses, and foreign governments are increasingly relying on performance measurement information to help chart progress in increasingly frugal times. No cancellations.

  14. Z, ZX, and X-1: A Realistic Path to High Fusion Yield

    SciTech Connect (OSTI)

    COOK, DONALD L.

    1999-10-07T23:59:59.000Z

    Z-pinches now constitute the most energetic and powerful sources of x-rays available by a large margin. The Z accelerator at Sandia National Laboratories has produced 1.8 MJ of x-ray energy, 280 TW of power, and hohlraum temperatures of 200 eV. These advances are being applied to inertial confinement fusion (ICF) experiments on Z. The requirements for high fusion yield are exemplified in the target to be driven by the X-1 accelerator. X-1 will drive two z-pinches, each producing 7 MJ of x-ray energy and about 1000 TW of x-ray power. Together, these radiation sources will heat a hohlraum containing the 4-mm diameter ICF capsule to a temperature exceeding 225 eV for about 10 ns, with the pulse shape required to drive the capsule to high fusion yield, in the range of 200--1000 MJ. Since X-1 consists of two identical accelerators, it is possible to mitigate the technical risk of high yield by constructing one accelerator. This accelerator, ZX, will bridge the gap from Z to X-1 by driving an integrated target experiment with a very efficient energy source, ZX will also provide experimental condition that the full specifications of the X-1 accelerator for high yield are achievable, and that a realistic path to high fission yield exists.

  15. Comparative Analysis of the Effect of Different Alkaline Catalysts on Biodiesel Yield

    E-Print Network [OSTI]

    Cynthia Ofori-boateng; Ebenezer M. Kwofie; Moses Y. Mensah

    Abstract: A major challenge in the biodiesel industry is the comparatively high cost of raw materials for production. A cost build-up analysis of biodiesel production from J. curcas oil shows that catalyst alone contributes about 50.9 % of the total production cost. This paper aims at highlighting the effects of two different commonly used catalysts on the yield of biodiesel. Samples of biodiesel were produced by three different methods namely single stage transesterification (SST), double stage transesterification (DST) and foolproof (FP) processes in which sodium hydroxide (NaOH) and potassium hydroxide (KOH) were used. The effects of each catalyst on the production yield were analyzed and compared. NaOH gave production yields of 79%, 81% and 84 % for the SST, DST and FP processes respectively. KOH produced comparatively lower yields of 68%, 71 % and 75 % for SST, DST and fool proof processes respectively. Although the use of KOH slightly raises the cost of biodiesel production as compared to NaOH, the local production of KOH from cocoa husks could minimize the production cost. Abbreviations: BDF = Biodiesel fuel; PDF = Petroleum diesel fuel; DF = Diesel fuel Key words: Transesterification Alkaline catalysts Biodiesel yield Biodiesel KOH NaOH

  16. The effect of premature wall yield on creep testing of strongly-flocculated suspensions

    E-Print Network [OSTI]

    Anthony D. Stickland; Ashish Kumar; Tiara E. Kusuma; Peter J. Scales; Amy Tindley; Simon Biggs; Richard Buscall

    2015-01-23T23:59:59.000Z

    Measuring yielding in cohesive suspensions is often hampered by slip at measurement surfaces. This paper presents creep data for strongly-flocculated suspensions obtained using vane-in-cup tools with differing cup-to-vane diameter ratios. The three suspensions were titania and alumina aggregated at their isoelectric points and polymer-flocculated alumina. The aim was to find the diameter ratio where slip or premature yielding at the cup wall had no effect on the transient behaviour. The large diameter ratio results showed readily understandable material behaviour comprising linear viscoelasticity at low stresses, strain-softening close to yielding, time-dependent yield across a range of stresses and then viscous flow. Tests in small ratio geometries however showed more complex responses. Effects attributed to the cup wall included delayed softening, slip, multiple yielding and stick-slip events, and unsteady flow. The conclusion was that cups have to be relatively large to eliminate wall artefacts. A diameter ratio of three was sufficient in practice, although the minimum ratio must be material dependent.

  17. Yield enhancement of reconfigurable microfluidics-based biochips using interstitial redundancy

    E-Print Network [OSTI]

    Fei Su; Krishnendu Chakrabarty

    2006-01-01T23:59:59.000Z

    Microfluidics-based biochips for biochemical analysis are currently receiving much attention. They automate highly repetitive laboratory procedures by replacing cumbersome equipment with miniaturized and integrated systems. As these microfluidics-based microsystems become more complex, manufacturing yield will have significant influence on production volume and product cost. We propose an interstitial redundancy approach to enhance the yield of biochips that are based on droplet-based digital microfluidics. In this design method, spare cells are placed in the interstitial sites within the microfluidic array, and they replace neighboring faulty cells via local reconfiguration. The proposed design method is evaluated using a set of concurrent real-life bioassays. The defect-tolerant design approach based on space redundancy and local reconfiguration is expected to facilitate yield enhancement of microfluidics-based biochips, especially for the emerging marketplace.

  18. Comparative analysis of the secondary electron yield from carbon nanoparticles and pure water medium

    E-Print Network [OSTI]

    Verkhovtsev, Alexey; de Vera, Pablo; Surdutovich, Eugene; Guatelli, Susanna; Korol, Andrei V; Rosenfeld, Anatoly; Solov'yov, Andrey V

    2015-01-01T23:59:59.000Z

    The production of secondary electrons generated by carbon nanoparticles and pure water medium irradiated by fast protons is studied by means of model approaches and Monte Carlo simulations. It is demonstrated that due to a prominent collective response to an external field, the nanoparticles embedded in the medium enhance the yield of low-energy electrons. The maximal enhancement is observed for electrons in the energy range where plasmons, which are excited in the nanoparticles, play the dominant role. Electron yield from a solid carbon nanoparticle composed of fullerite, a crystalline form of C60 fullerene, is demonstrated to be several times higher than that from liquid water. Decay of plasmon excitations in carbon-based nanosystems thus represents a mechanism of increase of the low-energy electron yield, similar to the case of sensitizing metal nanoparticles. This observation gives a hint for investigation of novel types of sensitizers to be composed of metallic and organic parts.

  19. Note: A simple charge neutralization method for measuring the secondary electron yield of insulators

    SciTech Connect (OSTI)

    Weng, Ming, E-mail: wengming@mail.xjtu.edu.cn; Cao, Meng; Zhao, Hong-Juan; Zhang, Hai-Bo [Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049 (China)] [Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049 (China)

    2014-03-15T23:59:59.000Z

    We report on a simple and effective charge neutralization method for measuring the total electron-induced secondary electron yield of insulators in a measurement system with a single pulsed electron gun. In this method, the secondary electron collector is negatively biased with respect to the sample to force some emitted secondary electrons to return to the sample surface and therefore to neutralize positive charges accumulated in the sample during the previous measurement. The adequate negative bias is determined and the equilibrium state of negative charging is discussed. The efficacy of the method is demonstrated by the measured electron yields in the cases with and without charge neutralization and by comparison with existing electron yield data of polyimide.

  20. Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    % Quality Inspections Completed 66% +12% 95% 86% 95% 52% 81% 51% 76% Utilities: Performance Statistics of performance measures and specific color code target values. Trend status color indicators ­ identifies changes from the prior month: Key: - 54% Electric - 0% All Zones Combined Zone Breakdown Steam/Chilled Water 0

  1. Regional Transportation Performance Measures

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    in place for maintenance of pavements and structures But only general goals for modernization Case for Performance-Based Funding: What Partners Say The Pew Center on the States' recently ranked Mobility Reliability Accessibility Livability 12 #12;Transportation Performance Measurement Concepts

  2. Employee Performance Management System

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

    2001-03-14T23:59:59.000Z

    To establish requirements and responsibilities for employee performance appraisals, performance-related awards, and other forms of employee recognition. (Cancels existing provisions of DOE O 3450.1B, Incentive Awards, dated 6/23/92.) Cancels DOE O 331.1A, DOE O 3450.1B. Canceled by DOE O 331.1C

  3. Employee Performance Management System

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

    2001-03-14T23:59:59.000Z

    To establish requirements and responsibilities for employee performance appraisals, performance-related awards, and other forms of employee recognition. Cancels DOE O 331.1A and (2) existing provisions of DOE O 3450.1B. Cancelled by DOE O 331.1C.

  4. Employee Performance Management System

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

    1999-06-15T23:59:59.000Z

    To establish requirements and responsibilities for employee performance appraisals, performance-related awards, and other forms of employee recognition. This Order covers most employees at grades GS-15 and below. Cancels DOE O 331.1. Canceled by DOE O 331.1B.

  5. Residential Furnace Blower Performance

    E-Print Network [OSTI]

    conditioner performance1 , standby power, as well as igniter and combustion air blower power. Energy savings for a typical three-and-a-half ton air conditioner with typical California ducts are 45 kWh. Peak demand combinations of blowers and residential furnaces were tested for air moving performance. The laboratory test

  6. Light oil yield improvement project at Granite City Division Coke/By-Product Plant

    SciTech Connect (OSTI)

    Holloran, R.A. [National Steel Corp., Granite City, IL (United States). Granite City Div.

    1995-12-01T23:59:59.000Z

    Light oil removal from coke oven gas is a process that has long been proven and utilized throughout many North American Coke/By-Products Plants. The procedures, processes, and equipment requirements to maximize light oil recovery at the Granite City By-Products Plant will be discussed. The Light Oil Yield Improvement Project initially began in July, 1993 and was well into the final phase by February, 1994. Problem solving techniques, along with utilizing proven theoretical recovery standards were applied in this project. Process equipment improvements and implementation of Operator/Maintenance Standard Practices resulted in an average yield increase of 0.4 Gals./NTDC by the end of 1993.

  7. Measurement of delayed neutron yields from {sup 235}U and {sup 238}U

    SciTech Connect (OSTI)

    Kellett, M.A.; Weaver, D.R. [Univ. of Birmingham (United Kingdom); Filip, A. [CEN Cadarache, St. Paul-les-Durance (France)

    1994-12-31T23:59:59.000Z

    Work is in progress at the University of Birmingham, UK, on the preliminary calibration of detectors and neutron beam characterisation required in order to carry out the accurate measurement of the total and absolute delayed neutron yields from the fast fission of uranium 235 and 238. The work is being undertaken in order to try and resolve the discrepancies that exist in the yield for the uranium 238 isotope. The University`s 3 MV Dynamitron accelerator is being used to produce the required neutron fluxes of 10{sup 9} neutrons per steradian per second, as generated via the D(d,n){sup 3}He reaction.

  8. Possible Fine Structure in the Delayed Neutron Yields in the Resonance Region for Pu-239

    SciTech Connect (OSTI)

    Ohsawa, Takaaki; Torii, Takayuki [Department of Electrical and Electronic Engineering, Kinki University, Higashi-osaka 577-8502 (Japan); Hambsch, Franz-Josef [EC-JRC-Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel (Belgium)

    2005-05-24T23:59:59.000Z

    A method of analysis of fluctuation in the delayed neutron yield on the basis of the multimodal fission model was applied to the low-energy resolved resonances for Pu-239. The present calculation using recent data of the fluctuation of the mode branching ratios for the resolved resonances showed both positive and negative resonance structure in the delayed neutron yield relative to the thermal neutron value. This is in contrast to the U-235 case, for which mainly negative dips of about -3.5% were predicted.

  9. New physics contribution to B{yields}K{pi} decays in soft collinear effective theory

    SciTech Connect (OSTI)

    Huitu, K. [Department of Physics, and Helsinki Institute of Physics, P.O.Box 64, FIN-00014, University of Helsinki (Finland); Khalil, S. [Centre for Theoretical Physics, British University in Egypt, El Sherouk City, 11837 (Egypt) and Department of Mathematics, Ain Shams University, Faculty of Science, Cairo, 11566 (Egypt)

    2010-05-01T23:59:59.000Z

    We analyze the 5{sigma} difference between the CP asymmetries of the B{sup 0{yields}}K{sup +{pi}-} and B{sup +{yields}}K{sup +{pi}0} decays within the soft collinear effective theory. We find that in the standard model, such a big difference cannot be achieved. We classify then the requirements for the possible New Physics models, which can be responsible for the experimental results. As an example of a New Physics model we study minimal supersymmetric models, and find that the measured asymmetry can be obtained with nonminimal flavor violation.

  10. Yield Improvement and Energy Savings Uing Phosphonates as Additives in Kraft pulping

    SciTech Connect (OSTI)

    Ulrike W. Tschirner; Timothy Smith

    2007-03-31T23:59:59.000Z

    Project Objective: Develop a commercially viable modification to the Kraft process resulting in energy savings, increased yield and improved bleachability. Evaluate the feasibility of this technology across a spectrum of wood species used in North America. Develop detailed fundamental understanding of the mechanism by which phosphonates improve KAPPA number and yield. Evaluate the North American market potential for the use of phosphonates in the Kraft pulping process. Examine determinants of customer perceived value and explore organizational and operational factors influencing attitudes and behaviors. Provide an economic feasibility assessment for the supply chain, both suppliers (chemical supply companies) and buyers (Kraft mills). Provide background to most effectively transfer this new technology to commercial mills.

  11. Combining ability of yield components and agronomic characteristics among selected Sorghum bicolor (L.) Moench inbreds

    E-Print Network [OSTI]

    Smith, Leslie Kay

    1986-01-01T23:59:59.000Z

    parent which produces large seeded hybr ds According to the analysis of variance, gra'n yield did not appear to be significantly affe ted by female general con hiring ability (GCA i or spec' fic combining ab' 1' ty (SCA) . Female az'o male GCA... effects and SCA effects were significant for 300-seed weight, seeds per panicle, days to anthesis, plant height, panicle lencth, exsertion, and threshing percentage. In most cases the interact or. witl years was also important. GCA effects for yield...

  12. Effect of a "major" dwarfing gene on grain yield and other agronomic traits in oat

    E-Print Network [OSTI]

    Almeida, Juliano Luiz de

    2012-06-07T23:59:59.000Z

    EFFECT OF A "MAJOR" DWARFING GENE ON GRAIN YIELD AND OTHER AGRONOMIC TRAITS IN OAT A Thesis by JULIANO LUIZ DE ALMEIDA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1994 Major Subject: Plant Breeding EFFECT OF A "MAJOR" DWARFING GENE ON GRAIN YIELD AND OTHER AGRONOMIC TRAITS IN OAT A Thesis by JULIANO LUIZ DE ALMEIDA Submitted to Texas A&M University in partial fulfillment...

  13. TUNE: Compiler-Directed Automatic Performance Tuning

    SciTech Connect (OSTI)

    Hall, Mary [University of Utah

    2014-09-18T23:59:59.000Z

    This project has developed compiler-directed performance tuning technology targeting the Cray XT4 Jaguar system at Oak Ridge, which has multi-core Opteron nodes with SSE-3 SIMD extensions, and the Cray XE6 Hopper system at NERSC. To achieve this goal, we combined compiler technology for model-guided empirical optimization for memory hierarchies with SIMD code generation, which have been developed by the PIs over the past several years. We examined DOE Office of Science applications to identify performance bottlenecks and apply our system to computational kernels that operate on dense arrays. Our goal for this performance-tuning technology has been to yield hand-tuned levels of performance on DOE Office of Science computational kernels, while allowing application programmers to specify their computations at a high level without requiring manual optimization. Overall, we aim to make our technology for SIMD code generation and memory hierarchy optimization a crucial component of high-productivity Petaflops computing through a close collaboration with the scientists in national laboratories.

  14. Analysis of Photovoltaic System Energy Performance Evaluation Method

    SciTech Connect (OSTI)

    Kurtz, S.; Newmiller, J.; Kimber, A.; Flottemesch, R.; Riley, E.; Dierauf, T.; McKee, J.; Krishnani, P.

    2013-11-01T23:59:59.000Z

    Documentation of the energy yield of a large photovoltaic (PV) system over a substantial period can be useful to measure a performance guarantee, as an assessment of the health of the system, for verification of a performance model to then be applied to a new system, or for a variety of other purposes. Although the measurement of this performance metric might appear to be straight forward, there are a number of subtleties associated with variations in weather and imperfect data collection that complicate the determination and data analysis. A performance assessment is most valuable when it is completed with a very low uncertainty and when the subtleties are systematically addressed, yet currently no standard exists to guide this process. This report summarizes a draft methodology for an Energy Performance Evaluation Method, the philosophy behind the draft method, and the lessons that were learned by implementing the method.

  15. Performance Management Plan

    SciTech Connect (OSTI)

    IT Corporation, Las Vegas, NV

    2002-08-21T23:59:59.000Z

    This Performance Management Plan describes the approach for accelerating cleanup activities of U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Operations Office (NNSA/NV) Environmental Management (EM) Program. This approach accelerates the reduction of risk at NNSA/NV sites while performing the work responsibly, effectively, and more efficiently. In May 2002, NNSA/NV EM and the Nevada Division of Environmental Protection signed a Letter of Intent formalizing an agreement to pursue accelerated risk reduction and cleanup for activities within the State of Nevada. This Performance Management Plan provides the strategic direction for implementing the Letter of Intent.

  16. Team Identity and Performance-based Compensation Effects on Performance

    E-Print Network [OSTI]

    Blazovich, Janell L.

    2010-01-16T23:59:59.000Z

    ). Results indicate that while the combination of team and individual performance-based compensation results in the highest performance, the incremental performance boost is higher from the first performance-based reward strategy, regardless of whether...

  17. Photochemistry of Matrix-Isolated and Thin Film Acid Chlorides: Quantum Yields and Product Structures

    E-Print Network [OSTI]

    Ellison, Barney

    the differences between gas- and condensed-phase photochemistry strengthens our understanding of many, and well-known gas-phase reaction mechanisms are often modified in the condensed phase or completely the photoreaction of condensed acid chloride samples by comparison of reaction quantum yields for acetyl (CH3COCl

  18. NNSA Defense Programs Inertial Confinement Fusion Ignition and High Yield Campaign

    E-Print Network [OSTI]

    Fusion and National Ignition Facility Project Dr. Christopher J. Keane NA-16 Office of Inertial Scott L. Samuelson NA-162 NA-10 * = stationed in Albuquerque #12;5 Militarily Effective Yield Fission concepts (pulsed power fusion, "fast ignition", petawatt lasers) 4. Maintain robust national program

  19. 2012 DRY BEAN YIELD TRIALS J.D. Kelly, E. Wright, N. Blakely, and J. Heilig

    E-Print Network [OSTI]

    bush cranberry test; 56-entry kidney test; 56-entry preliminary kidney test; 5- entry mayacoba test; 64 organic trials in Tuscola county. All trials were direct harvested except for kidney, cranberry, drought yields were recorded in the kidney and cranberry trials. Screening for resistance to common bacterial

  20. Method and apparatus for increasing the durability and yield of thin film photovoltaic devices

    DOE Patents [OSTI]

    Phillips, James E. (Newark, DE); Lasswell, Patrick G. (Newark, DE)

    1987-01-01T23:59:59.000Z

    Thin film photovoltaic cells having a pair of semiconductor layers between an opaque and a transparent electrical contact are manufactured in a method which includes the step of scanning one of the semiconductor layers to determine the location of any possible shorting defect. Upon the detection of such defect, the defect is eliminated to increase the durability and yield of the photovoltaic device.

  1. Plant-to-Plant Uniformity is Essential for Optimum Yield in No-Till Continuous Corn

    E-Print Network [OSTI]

    Holland, Jeffrey

    of compromises and consequences. Possible compromises include increased soil erosion, reduced air and water-drained soils in a crop rotation are comparable to yields produced using conventional tillage -- provided and development and provides remedies for alleviating them. OPTIMIZING CONSERVATION TILLAGE SYSTEMS Figure 1

  2. Sediment storage by vegetation in steep bedrock landscapes: Theory, experiments, and implications for postfire sediment yield

    E-Print Network [OSTI]

    Sediment storage by vegetation in steep bedrock landscapes: Theory, experiments, and implications for postfire sediment yield Michael P. Lamb,1 Mariya Levina,1 Roman A. DiBiase,1 and Brian M. Fuller1 Received 26 September 2012; revised 6 March 2013; accepted 8 March 2013. [1] Mechanistic models for sediment

  3. Modeling of the interactions between forest vegetation, disturbances, and sediment yields

    E-Print Network [OSTI]

    Tarboton, David

    Modeling of the interactions between forest vegetation, disturbances, and sediment yields Erkan on the frequency and magnitude of sediment delivery from a small watershed ($3.9 km2 ) in the Idaho batholith weathering and the divergence of diffusive sediment transport on hillslopes. Soil removal is due to episodic

  4. Distributed sediment yield modelling: Importance of initial sediment Gianbattista Bussi a,*, Flix Francs a

    E-Print Network [OSTI]

    Julien, Pierre Y.

    Distributed sediment yield modelling: Importance of initial sediment conditions Gianbattista Bussi April 2014 Available online Keywords: Sediment modelling Soil erosion River network deposits Initial conditions Sediment hysteresis loop a b s t r a c t The importance of initial sediment conditions on model

  5. Sediment storage and yield in an urbanized karst watershed Evan A. Harta,*, Stephen G. Schurgerb

    E-Print Network [OSTI]

    Hart, Evan

    Sediment storage and yield in an urbanized karst watershed Evan A. Harta,*, Stephen G. Schurgerb, sinkholes and other drainage features control the temporal and spatial pattern of sediment storage across the landscape. However, studies dealing with sedimentation in karst watersheds are scarce and the sediment

  6. Hierarchical Silica Nanostructures Inspired by Diatom Algae Yield Superior Deformability, Toughness, and Strength

    E-Print Network [OSTI]

    Buehler, Markus J.

    Hierarchical Silica Nanostructures Inspired by Diatom Algae Yield Superior Deformability, Toughness algae that is mainly composed of amorphous silica, which features a hierarchical structure that ranges in diatom algae as a basis to study a bioinspired nanoporous material implemented in crystalline silica. We

  7. Generalized Storage-Reliability-Yield equations for rainwater harvesting Lars S. Hanson1

    E-Print Network [OSTI]

    Vogel, Richard M.

    and suburban areas. As the variable costs of rainwater collection tend to be quite small, the largest economic1 Generalized Storage-Reliability-Yield equations for rainwater harvesting systems Lars S. Hanson1 and Environmental Engineering, MassachusettsInstitute of Technology, Cambridge, MA Abstract: Although rainwater

  8. Surface studies and implanted helium measurements following NOVA high-yield DT experiments

    SciTech Connect (OSTI)

    Stoyer, M.A.; Hudson, G.B.

    1997-02-18T23:59:59.000Z

    This paper presents the results of three March 6, 1996 direct-drive high-yield DT NOVA experiments and provides `proof-of-principal` results for the quantitative measurement of energetic He ions. Semiconductor quality Si wafers and an amorphous carbon wafer were exposed to NOVA high-yield implosions. Surface damage was sub-micron in general, although the surface ablation was slightly greater for the carbon wafer than for the Si wafers. Melting of a thin ({approx} 0.1{mu}) layer of Si was evident from microscopic investigation. Electron microscopy indicated melted blobs of many different metals (e.g. Al, Au, Ta, Fe alloys, Cu and even Cd) on the surfaces. The yield measured by determining the numbers of atoms of implanted {sup 4}He and {sup 3}He indicate the number of DT fusions to be 9.1({plus_minus}2.3) X 10{sup 12} and DD fusions to be 4.8({plus_minus}1.0) x 10{sup 10}, respectively. The helium DT fusion yield is slightly lower than that of the Cu activation measurement, which was 1.3({plus_minus}0.l) x 10{sup 13} DT fusions.

  9. RATE SENSITIVITY OF PLASTIC FLOW AND IMPLICATIONS FOR YIELD-SURFACE VERTICES

    E-Print Network [OSTI]

    RATE SENSITIVITY OF PLASTIC FLOW AND IMPLICATIONS FOR YIELD-SURFACE VERTICES Jwo PAN Stress; in recked form 29 Norember 1982) &tract-When crystalline slip is considered as the micromechanism of plastic sensitivity of plastic flow may be central to understanding the ambiguous conclusions from experimental

  10. Evaluation of nanoparticle-immobilized cellulase for improved ethanol yield in simultaneous saccharification and fermentation reactions

    SciTech Connect (OSTI)

    Lupoi, Jason; Smith, Emily

    2011-12-01T23:59:59.000Z

    Ethanol yields were 2.1 (P = 0.06) to 2.3 (P = 0.01) times higher in simultaneous saccharification and fermentation (SSF) reactions of microcrystalline cellulose when cellulase was physisorbed on silica nanoparticles compared to enzyme in solution. In SSF reactions, cellulose is hydrolyzed to glucose by cellulase while yeast simultaneously ferments glucose to ethanol. The 35 C temperature and the presence of ethanol in SSF reactions are not optimal conditions for cellulase. Immobilization onto solid supports can stabilize the enzyme and promote activity at non-optimum reaction conditions. Mock SSF reactions that did not contain yeast were used to measure saccharification products and identify the mechanism for the improved ethanol yield using immobilized cellulase. Cellulase adsorbed to 40 nm silica nanoparticles produced 1.6 times (P = 0.01) more glucose than cellulase in solution in 96 h at pH 4.8 and 35 C. There was no significant accumulation (<250 {mu}g) of soluble cellooligomers in either the solution or immobilized enzyme reactions. This suggests that the mechanism for the immobilized enzyme's improved glucose yield compared to solution enzyme is the increased conversion of insoluble cellulose hydrolysis products to soluble cellooligomers at 35 C and in the presence of ethanol. The results show that silica-immobilized cellulase can be used to produce increased ethanol yields in the conversion of lignocellulosic materials by SSF.

  11. Planting density effects on lint yield and quality of three stacked gene cotton cultivars

    E-Print Network [OSTI]

    Halfmann, Shane William

    2006-08-16T23:59:59.000Z

    was a spit-plot design with four replications of three cultivars (SG 215 BG/RR, DP 555 BG/RR, ST 4892 BG/RR) in densities ranging from 74 to 222 thousand plants hectare-1. Plant density had no significant effect on lint yield in 2003 or 2004. However...

  12. Vegetation and wildfire controls on sediment yield in bedrock Roman A. DiBiase1

    E-Print Network [OSTI]

    , tectonics, and wildfire. Predicting landscape response to these pertur- bations demands a quantitative scale, our measurements match records of postfire sediment yield from nearby retention basins. Contrary-term landscape evolution, and increasing fire frequency in response to climate change may not result

  13. Improving Crop Yield and Water Productivity by Ecological Sanitation and Water Harvesting in South Africa

    E-Print Network [OSTI]

    Wehrli, Bernhard

    , University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa *S Supporting Information and fertility constraints in rain- fed smallholder agriculture in South Africa, namely in situ water harvesting significantly increased maize yields by 12% and transpiration by 2% on average across South Africa. In situ

  14. Solvothermal-Assisted Exfoliation Process to Produce Graphene with High Yield and High Quality

    E-Print Network [OSTI]

    Gao, Hongjun

    Solvothermal-Assisted Exfoliation Process to Produce Graphene with High Yield and High Quality Wen produced by a solvothermal-assisted exfoliation process in a highly polar organic solvent, acetonitrile interactions between graphene and acetonitrile facilitate the exfoliation and dispersion of graphene

  15. CHANGES IN QUANTUM YIELD OF PHOTOSYNTHESIS IN THE RED ALGA Porphyridium cruentum

    E-Print Network [OSTI]

    Govindjee

    CHANGES IN QUANTUM YIELD OF PHOTOSYNTHESIS IN THE RED ALGA Porphyridium cruentum CAUSED BY STEPWISE From the Photosynthesis Research Laboratory, Botany Department, University of Illinois, Urbana. Dr of photosynthesis in the red alga Porphyridium cruentum, and the spectral compo- sition of light, changed

  16. Production yields of noble-gas isotopes from ISOLDE UC$_{x}$/graphite targets

    E-Print Network [OSTI]

    Bergmann, U C; Catherall, R; Cederkäll, J; Diget, C A; Fraile-Prieto, L M; Franchoo, S; Fynbo, H O U; Gausemel, H; Georg, U; Giles, T; Hagebø, E; Jeppesen, H B; Jonsson, O C; Köster, U; Lettry, Jacques; Nilsson, T; Peräjärvi, K; Ravn, H L; Riisager, K; Weissman, L; Äystö, J

    2003-01-01T23:59:59.000Z

    Yields of He, Ne, Ar, Kr and Xe isotopic chains were measured from UC$_{x}$/graphite and ThC$_{x}$/graphite targets at the PSB-ISOLDE facility at CERN using isobaric selectivity achieved by the combination of a plasma-discharge ion source with a water-cooled transfer line. %The measured half-lives allowed %to calculate the decay losses of neutron-rich isotopes in the %target and ion-source system, and thus to obtain information on the in-target %productions from the measured yields. The delay times measured for a UC$_x$/graphite target allow for an extrapolation to the expected yields of very neutron-rich noble gas isotopes, in particular for the ``NuPECC reference elements'' Ar and Kr, at the next-generation radioactive ion-beam facility EURISOL. \\end{abstract} \\begin{keyword} % keywords here, in the form: keyword \\sep keyword radioactive ion beams \\sep release \\sep ion yields \\sep ISOL (Isotope Separation On-Line) \\sep uranium and thorium carbide targets. % PACS codes here, in the form: \\PACS code \\sep code...

  17. Effects on milk yield and composition of infusions of different levels

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Effects on milk yield and composition of infusions of different levels and natures of energy of propionic acid. However, pro- pionic infusion did not always lead to an increase in protein content (Hurtaud explain this effect. A rumen infusion of propionic acid (13.41 mol/d) was compared with water as a nega

  18. Effects on milk yield and composition of infusions of volatile fatty acids and caseinate into

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Effects on milk yield and composition of infusions of volatile fatty acids and caseinate isoenergetic infusions of either a low (17 mol/day of 64% acetic, 21% propionic and 15% butyric acids) or high that with infusions, energy and nitrogen needs were met and consisted of 60% maize silage, 10% hay, 21.5% energy

  19. Root Growth and Yield of Differing Alfalfa Rooting Populations under Increasing Salinity and Zero Leaching

    E-Print Network [OSTI]

    Smith, Steven E.

    Root Growth and Yield of Differing Alfalfa Rooting Populations under Increasing Salinity and Zero of alfalfa under irrigation extended to 2.5 m (Dud- ley et al., 1994). It may be advantageous for deep-rootedAccumulation of salinity in the root zone can be detrimental to crops such as alfalfa to exploit the lower average

  20. Yield criteria for quasibrittle and frictional materials Davide Bigoni *, Andrea Piccolroaz

    E-Print Network [OSTI]

    Piccolroaz, Andrea

    to soil, concrete, rock, metallic and composite powders, metallic foams, porous metals, and polymers denomination for soil, concrete, rock, granular media, coal, cast iron, ice, porous metals, metallic foams. Keywords: Yield criteria; Elastic­plastic material; Concrete; Foam material; Geological material; Granular

  1. Self-Assembly for Maximum Yields Under Constraints Michael J. Fox and Jeff S. Shamma

    E-Print Network [OSTI]

    Shamma, Jeff S.

    Self-Assembly for Maximum Yields Under Constraints Michael J. Fox and Jeff S. Shamma Abstract-- We present an algorithm that, given any target tree, synthesizes reversible self-assembly rules that provide states that cannot be recovered from the unlabeled graph. I. INTRODUCTION Self-assembly is the phenomenon

  2. HIGH YIELD BATCH PACKAGING OF MICRO DEVICES WITH UNIQUELY ORIENTING SELF-ASSEMBLY

    E-Print Network [OSTI]

    HIGH YIELD BATCH PACKAGING OF MICRO DEVICES WITH UNIQUELY ORIENTING SELF-ASSEMBLY Jiandong Fang of uniquely orienting self-assembly with 2mm square diced silicon parts. Each silicon part has one hydrophobic shape-directed self-assembly assigns parts to complementary trenches in parallel [2]; (3) capillary

  3. Optimization of Yield in Magnetic Cell Separations Using Nickel Nanowires of Different Lengths

    E-Print Network [OSTI]

    Chen, Christopher S.

    Optimization of Yield in Magnetic Cell Separations Using Nickel Nanowires of Different Lengths Anne in this area is electrodeposited nanowires (8). These nanowires have several properties that make them- lectively electrodeposited along the growth axis (9). Unlike the beads, which are composed of magnetic

  4. Yield Asymmetry Design of Magnesium Alloys by Integrated Computational Materials Engineering

    SciTech Connect (OSTI)

    Li, Dongsheng; Joshi, Vineet V.; Lavender, Curt A.; Khaleel, Mohammad A.; Ahzi, Said

    2013-11-01T23:59:59.000Z

    Deformation asymmetry of magnesium alloys is an important factor on machine design in automobile industry. Represented by the ratio of compressive yield stress (CYS) against tensile yield stress (TYS), deformation asymmetry is strongly related to microstructure, characterized by texture and grain size. Modified intermediate phi-model, a polycrystalline viscoplasticity model, is used to predict the deformation behavior of magnesium alloys with different grain sizes. Validated with experimental results, integrated computational materials engineering is applied to find out the route in achieving desired asymmetry by thermomechanical processing. In some texture, for example, rolled texture, CYS/TYS is smaller than 1 under different loading directions. In some texture, for example, extruded texture, asymmetry is large along normal direction. Starting from rolled texture, the asymmetry will increased to close to 1 along rolling direction after compressed to a strain of 0.2. Our model shows that grain refinement increases CYS/TYS. Besides texture control, grain refinement can also optimize the yield asymmetry. After the grain size decreased to a critical value, CYS/TYS reaches to 1 since CYS increases much faster than TYS. By tailoring the microstructure using texture control and grain refinement, it is achievable to optimize yield asymmetry in wrought magnesium alloys.

  5. Seismological Evidence for a Low-Yield Nuclear Test on 12 May 2010 in North Korea

    E-Print Network [OSTI]

    Wen, Lianxing

    E Seismological Evidence for a Low-Yield Nuclear Test on 12 May 2010 in North Korea by Miao Zhang. INTRODUCTION Three nuclear tests (in 2006, 2009, and 2013) conducted by the Democratic People's Republic.g., the U. S. Geological Survey [USGS] and the Comprehensive Nuclear-Test-Ban Treaty Organization [CTBTO

  6. Yield Modeling and Analysis of a Clockless Asynchronous Wave Pipeline with Pulse Faults

    E-Print Network [OSTI]

    Ayers, Joseph

    Yield Modeling and Analysis of a Clockless Asynchronous Wave Pipeline with Pulse Faults T. Feng fault model and its modeling and analysis methods in a clockless asynchronous wave pipeline fault rate model for establishing a sound theoretical foundation for clockless wave pipeline design

  7. Improved Criteria for Acceptable Yield Point Elongation in Surface Critical Steels

    SciTech Connect (OSTI)

    Dr. David Matlock; Dr. John Speer

    2007-05-30T23:59:59.000Z

    Yield point elongation (YPE) is considered undesirable in surface critical applications where steel is formed since "strain lines" or Luders bands are created during forming. This project will examine in detail the formation of luders bands in industrially relevant strain states including the influence of substrate properties and coatings on Luders appearance. Mechanical testing and surface profilometry were the primary methods of investigation.

  8. Transient Shear Banding in a Simple Yield Stress Fluid Thibaut Divoux,1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    region with a vanishing local shear rate loc = 0 and a fluidized region sheared at loc = c. Besides, var that somewhat blur the above distinction. First, non-thixotropic nonad- hesive emulsions, for which magnetic resonance velocime- try coupled to wide-gap rheology shows simple yielding behavior [12], were found

  9. The Ultimate-Sustainable-Yield Problem in Nonlinear Age-Structured Populations*

    E-Print Network [OSTI]

    Getz, Wayne M.

    that it assumes that recruitment is independent of population density. *This work was partially supportedThe Ultimate-Sustainable-Yield Problem in Nonlinear Age-Structured Populations* WAYNE M. GETZ Africa Received 24 January 1979; revised IO Ju& 1979 ABSTRACT The Beverton-Holt theory of harvesting

  10. Linkages among climate change, crop yields and MexicoUS cross-border migration

    E-Print Network [OSTI]

    Oppenheimer, Michael

    Linkages among climate change, crop yields and Mexico­US cross-border migration Shuaizhang Fenga assumed, with other factors held constant, by approximately the year 2080, climate change is estimated perspective given that many regions, espe- cially developing countries, are expected to experience significant

  11. Sugar yields from dilute sulfuric acid and sulfur dioxide pretreatments and subsequent enzymatic hydrolysis of switchgrass

    E-Print Network [OSTI]

    California at Riverside, University of

    Sugar yields from dilute sulfuric acid and sulfur dioxide pretreatments and subsequent enzymatic Dilute sulfuric acid Sulfur dioxide Biofuels Switchgrass a b s t r a c t Dacotah switchgrass was pretreated with sulfuric acid concentrations of 0.5, 1.0, and 2.0 wt.% at 140, 160, and 180 °C and with 1

  12. Methane Sulfonation A High-Yield Approach to the Sulfonation of

    E-Print Network [OSTI]

    Bell, Alexis T.

    Methane Sulfonation A High-Yield Approach to the Sulfonation of Methane to Methanesulfonic Acid Initiated by H2O2 and a Metal Chloride** Sudip Mukhopadhyay and Alexis T. Bell* Methane is abundant reactivity of methane makes it difficult to develop commercially viable processes for methane conversion.[1

  13. A viscoplasticity model with an enhanced control of the yield surface distortion

    E-Print Network [OSTI]

    A. V. Shutov; J. Ihlemann

    2012-03-31T23:59:59.000Z

    A new model of metal viscoplasticity, which takes combined isotropic, kinematic, and distortional hardening into account, is presented. The basic modeling assumptions are illustrated using a new two-dimensional rheological analogy. This demonstrative rheological model is used as a guideline for the construction of constitutive relations. The nonlinear kinematic hardening is captured using the well-known Armstrong-Frederick approach. The distortion of the yield surface is described with the help of a so-called distortional backstress. A distinctive feature of the model is that any smooth convex saturated form of the yield surface which is symmetric with respect to the loading direction can be captured. In particular, an arbitrary sharpening of the saturated yield locus in the loading direction combined with a flattening on the opposite side can be covered. Moreover, the yield locus evolves smoothly and its convexity is guaranteed at each hardening stage. A strict proof of the thermodynamic consistency is provided. Finally, the predictive capabilities of the material model are verified using the experimental data for a very high work hardening annealed aluminum alloy 1100 Al.

  14. A Dynamic Inventory Control Policy Under Demand, Yield and Lead Time Uncertainties

    E-Print Network [OSTI]

    Boyer, Edmond

    A Dynamic Inventory Control Policy Under Demand, Yield and Lead Time Uncertainties Mohamed Zied@lgi.ecp.fr, dallery@lgi.ecp.fr) ABSTRACT In this paper, we analyze a single-stage and single-item inventory control it. Keywords: inventory control, forecasts, cycle service level, fill rate, safety stock, policy

  15. Relationship of respiratory symptoms and pulmonary function to tar, nicotine, and carbon monoxide yield of cigarettes

    SciTech Connect (OSTI)

    Krzyzanowski, M.; Sherrill, D.L.; Paoletti, P.; Lebowitz, M.D. (National Institute of Hygiene, Warsaw (Poland))

    1991-02-01T23:59:59.000Z

    The data from consecutive surveys of the Tucson Epidemiologic Study (1981-1988) were used to evaluate the relationship in cigarette smokers of respiratory symptoms and pulmonary function to tar, nicotine, and carbon monoxide (CO) yields of the cigarette. There were 690 subjects who reported smoking regularly in at least one survey, over age 15. After adjustment for intensity and duration of smoking and for depth of inhalation, the risk of chronic phlegm, cough, and dyspnea were not related to the tar and nicotine yields. In 414 subjects with pulmonary function tested in at least one of the three surveys the spirometric indices used were significantly related to the daily dose of tar, nicotine, and CO (product of the cigarette yield and daily number of cigarettes smoked). The effects were more pronounced for past than for current doses. However, the differentiation of pulmonary function due to various yields of cigarettes was small in comparison to the difference in pulmonary function between smokers and nonsmokers.

  16. Texas Cotton Yield and Quality The mid-1990s marked the beginning of an era when

    E-Print Network [OSTI]

    Texas Cotton Yield and Quality Challenges The mid-1990s marked the beginning of an era when the first genetically modified cotton variety was developed. Since that time, biological advances in cotton decision a grower makes is the selection of a cotton variety and transgenic traits. Extension's Response

  17. POTENTIAL EFFECTS OF GLOBAL CLIMATIC CHANGE ON THE PHENOLOGY AND YIELD OF MAIZE IN VENEZUELA *

    E-Print Network [OSTI]

    Robock, Alan

    POTENTIAL EFFECTS OF GLOBAL CLIMATIC CHANGE ON THE PHENOLOGY AND YIELD OF MAIZE IN VENEZUELA de Ciencias, Universidad de Los Andes, Mdrida 5101, Venezuela 21nstitute of Applied Sciences, Venezuela 4Centro de Estudios Avanzados del Clima Tropical (CEACT), Ministerio deI Ambiente y de los

  18. Yield learning with line width, sample size and bridge resistance variation

    E-Print Network [OSTI]

    Hussain, Wajid

    1997-01-01T23:59:59.000Z

    observed the effects of certain noise sources such as line width variation, sample size and bridge resistance on yield learning, and determined how to account for them. In this research we will show that since line width variation is not random on a few...

  19. A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback

    E-Print Network [OSTI]

    Bierlaire, Michel

    A differentiable dynamic network loading model that yields queue length distributions and accounts, this is so because the kinematic wave model (KWM), the mainstay of traffic flow theory, only applies for spillback Carolina Osorio Gunnar Fl¨otter¨od Michel Bierlaire Abstract We derive a dynamic network

  20. Use of non-quadratic yield surfaces in design of optimal deep-draw blank geometry

    SciTech Connect (OSTI)

    Logan, R.W.

    1995-12-01T23:59:59.000Z

    Planar anisotropy in the deep-drawing of sheet can lead to the formation of ears in cylindrical cups and to undesirable metal flow in the blankholder in the general case. For design analysis purposes in non-linear finite-element codes, this anisotropy is characterized by the use of an appropriate yield surface which is then implemented into codes such as DYNA3D . The quadratic Hill yield surface offers a relatively straightforward implementation and can be formulated to be invariant to the coordinate system. Non-quadratic yield surfaces can provide more realistic strength or strain increment ratios, but they may not provide invariance and thus demand certain approximations. Forms due to Hosford and Badat et al. have been shown to more accurately address the earning phenomenon. in this work, use is made of these non-quadratic yield surfaces in order to determine the optimal blank shape for cups and other shapes using ferrous and other metal blank materials with planar anisotropy. The analyses are compared to previous experimental studies on non-uniform blank motion due to anisotropy and asymmetric geometry.

  1. A simplified model of thin layer static/flowing dynamics for granular materials with yield

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    /deposition processes when a layer of particles is flowing over a static layer or near the destabilization and arrestA simplified model of thin layer static/flowing dynamics for granular materials with yield, 75005 Paris, France, 4 ANGE team, INRIA, CETMEF, Lab. J.-L. Lions, Paris, France Abstract We introduce

  2. High-Yield Synthesis and Purification of an -Helical Transmembrane Domain

    E-Print Network [OSTI]

    by this small-scale 9-fluorenylme- thoxycarbonyl (Fmoc) strategy is comparable to that of the peptide. Combining these approaches readily yields 10 to 20 mg of pure transmembrane peptide from a small-scale Fmoc limits the approach to specialized facilities. Although a small-scale 9-fluorenylmethoxycarbonyl (Fmoc

  3. Improved Product-Per-Glucose Yields in P450-Dependent Propane Biotransformations

    E-Print Network [OSTI]

    Arnold, Frances H.

    ARTICLE Improved Product-Per-Glucose Yields in P450-Dependent Propane Biotransformations Using propane monooxygenase prepared by directed evolu- tion [P450PMOR2; Fasan et al. (2007); Angew Chem Int Ed of the energy source (glucose) in the propane biotransformation com- pared to the native E. coli strain. Using

  4. ORIGINAL PAPER Predicting the growth and yield of Pinus radiata in Bolivia

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL PAPER Predicting the growth and yield of Pinus radiata in Bolivia Gustavo Guzmán & Timo is the most widely planted conifer in the Inter-Andean Valleys of Bolivia. However, Bolivia lacks knowledge Prefectural, Cochabamba, Bolivia T. Pukkala :S. de-Miguel Faculty of Science and Forestry, University

  5. On the advantages of using green light to study fluorescence yield changes in leaves

    E-Print Network [OSTI]

    ) and the Benson and Calvin cycle involved in the fixation of CO2 (see e.g. [5]). The large variety of parameters the fluorescence increase reflecting the full reduction of the plastoquinone pool. We ascribe this plateau of the light-induced changes of fluorescence yield. In order to detect fluorescence emission, the sample has

  6. Improving Deaerator Performance

    E-Print Network [OSTI]

    Dyer, D. F.; Maples, G.

    The objectives of deaeration of feedwater are reviewed. A discussion of appropriate test data and methods for assessing deaerator performance are given. Analysis procedures are developed to analyze the test data. Typical problems such as over...

  7. Monthly Performance Report

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

    OVERVIEW MSC Monthly Performance Report JUL 2013 DOERL-2009-113 Rev 46 27 10.0 RELIABILITY PROJECT STATUS Activity in July was centered on continuing progress on projects...

  8. Monthly Performance Report

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

    OVERVIEW MSC Monthly Performance Report APR 2013 DOERL-2009-113 Rev 43 28 10.0 RELIABILITY PROJECT STATUS Activity in April was centered on continuing progress on projects...

  9. Energy Performance Contracting

    Broader source: Energy.gov [DOE]

    Provides an Energy Savings Performance Contracting (ESPC) overview and summary of ESPC resources, including training, sample documents, and guides from the U.S. Department of Housing and Urban Development. Author: U.S. Department of Housing and Urban Development

  10. Energy Savings Performance Contracts

    Broader source: Energy.gov [DOE]

    An Energy Savings Performance Contract (ESPC) is a partnership between a system owner and an Energy Services Company (ESCO). The ESCO conducts a comprehensive energy audit for the facility under...

  11. Healthcare Project Performance Benchmarks

    Broader source: Energy.gov [DOE]

    Reports five major performance metrics that can be used to benchmark proposed energy service company projects within the healthcare industry, disaggregated and reported by major retrofit strategy. Author: U.S. Department of Energy

  12. Activity Based Performance Measurement

    E-Print Network [OSTI]

    Brock, David

    performance Potential applications · Measuring value created by new technology...or any intervention) · 2 sites recently launched (SMEs, KM) #12;RFID findings #12;© MIT Sloan School of Management 8 RFID

  13. High Performance Computing

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

    view objects and processes in 3D. 13:01 Gary Grider, HPC Divison Leader The High Performance Computing (HPC) Division supports the Laboratory mission by managing world-class...

  14. Performance Measurement of MEAs

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

    iii. Electrolyte membrane durability iv. Target cost of membrane v. Automotive fuel cell MEA degradation map 3 3 Measurement of MEA Performance 4 4 25cm 2 72mm 72mm 50mm...

  15. Monthly Performance Report

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

    Average FY 0.77 CY 0.67 EXECUTIVE OVERVIEW EXECUTIVE OVERVIEW MSC Monthly Performance Report JAN 2013 DOERL-2009-113 Rev 40 7 Table 3-2. Days Away From Work. Definition...

  16. Monthly Performance Report

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

    Budget environmental stewardship scorecards. EXECUTIVE OVERVIEW MSC Monthly Performance Report DEC 2012 DOERL-2009-113 Rev 39 5 2.0 ANALYSIS OF FUNDS Table 2-1. Mission Support...

  17. Expressive re-performance

    E-Print Network [OSTI]

    Pardue, Laurel S

    2011-01-01T23:59:59.000Z

    Many music enthusiasts abandon music studies because they are frustrated by the amount of time and effort it takes to learn to play interesting songs. There are two major components to performance: the technical requirement ...

  18. Photovoltaic Cell Performance Basics

    Broader source: Energy.gov [DOE]

    Photovoltaic (PV), or solar cells use the energy in sunlight to produce electricity. However, the amount of electricity produced depends on the quality of the light available and the performance of the PV cell.

  19. High Performance Sustainable Building

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

    2011-11-09T23:59:59.000Z

    This Guide provides approaches for implementing the High Performance Sustainable Building (HPSB) requirements of DOE Order 413.3B, Program and Project Management for the Acquisition of Capital Assets. Cancels DOE G 413.3-6.

  20. Predicting Steam Turbine Performance

    E-Print Network [OSTI]

    Harriz, J. T.

    ," PREDICTING STEAM TURBINE PERFORMANCE James T. Harriz, EIT Waterland, Viar & Associates, Inc. Wilmington, Delaware ABSTRACT Tracking the performance of extraction, back pressure and condensing steam turbines is a crucial part... energy) and test data are presented. Techniques for deriving efficiency curves from each source are described. These techniques can be applied directly to any steam turbine reliability study effort. INTRODUCTION As the cost of energy resources...

  1. Measured Performance Signature Method

    E-Print Network [OSTI]

    Ahner, D. J.

    information for adaptive on-line optimum dispatch, equipment performance monitoring, or for conducting system "what if' scenarios. The MPS is a very useful technique which may be applied to Acceptance Testing Monitoring and Operations Optimization... performance signature, may be determined from on-line measurements, and corrected to a specified reference. This procedure also provides information for adaptive on-line optimum dispatch, incremental plant heat rate data for centralized system dispatch...

  2. High Performance New Construction

    E-Print Network [OSTI]

    Flores, M.

    2013-01-01T23:59:59.000Z

    Funding for Efficient New Buildings through Integrated Project Delivery and High Performance Design-Build Case Study Rolling Plains New Medical Office Building Michael Flores McKinstry mflores@mckinstry.com 469-789-9920 1 ESL-KT-13-12-40 CATEE..., San Antonio, Texas Dec. 16-18 Objectives • Explain how High Performance Design Build / Integrated Project Delivery (HPDB/IPD) differs from alternative project delivery methods (and why it is usually better!) • Identify the key participants in High...

  3. Repository Performance Confirmation - 12119

    SciTech Connect (OSTI)

    Hansen, F.D. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

    2012-07-01T23:59:59.000Z

    Repository performance confirmation links the technical bases of repository science and societal acceptance. Among the countless aspects of monitoring, performance confirmation holds a special place, involving distinct activities combining technical and social significance in radioactive waste management. Discussion is divided into four themes: 1. A distinction is drawn between performance confirmation monitoring and other testing and monitoring objectives, 2. A case study illustrates confirmation activities integrated within a long-term testing and monitoring strategy for Yucca Mountain, 3. A case study reviews compliance monitoring developed and implemented for the Waste Isolation Pilot Plant, and 4. An approach for developing, evaluating and implementing the next generation of performance confirmation monitoring is presented. International interest in repository monitoring is exhibited by the European Commission Seventh Framework Programme 'Monitoring Developments for Safe Repository Operation and Staged Closure' (MoDeRn) Project. The MoDeRn partners are considering the role of monitoring in a phased approach to the geological disposal of radioactive waste. As repository plans advance in different countries, the need to consider monitoring strategies within a controlled framework has become more apparent. The MoDeRn project pulls together technical and societal experts to assimilate a common understanding of a process that could be followed to develop a monitoring program. Experience from two repository programs in the United States sheds light on how performance confirmation has been executed. Lessons learned can help the next generation of performance confirmation. (author)

  4. Performance assurance program plan

    SciTech Connect (OSTI)

    Rogers, B.H.

    1997-11-06T23:59:59.000Z

    B and W Protec, Inc. (BWP) is responsible for implementing the Performance Assurance Program for the Project Hanford Management Contract (PHMC) in accordance with DOE Order 470.1, Safeguards and Security Program (DOE 1995a). The Performance Assurance Program applies to safeguards and security (SAS) systems and their essential components (equipment, hardware, administrative procedures, Protective Force personnel, and other personnel) in direct support of Category I and H special nuclear material (SNM) protection. Performance assurance includes several Hanford Site activities that conduct performance, acceptance, operability, effectiveness, and validation tests. These activities encompass areas of training, exercises, quality assurance, conduct of operations, total quality management, self assessment, classified matter protection and control, emergency preparedness, and corrective actions tracking and trending. The objective of the Performance Assurance Program is to capture the critical data of the tests, training, etc., in a cost-effective, manageable program that reflects the overall effectiveness of the program while minimizing operational impacts. To aid in achieving this objective, BWP will coordinate the Performance Assurance Program for Fluor Daniel Hanford, Inc. (FDH) and serve as the central point for data collection.

  5. Repository performance confirmation.

    SciTech Connect (OSTI)

    Hansen, Francis D.

    2011-09-01T23:59:59.000Z

    Repository performance confirmation links the technical bases of repository science and societal acceptance. This paper explores the myriad aspects of what has been labeled performance confirmation in U.S. programs, which involves monitoring as a collection of distinct activities combining technical and social significance in radioactive waste management. This paper is divided into four parts: (1) A distinction is drawn between performance confirmation monitoring and other testing and monitoring objectives; (2) A case study illustrates confirmation activities integrated within a long-term testing and monitoring strategy for Yucca Mountain; (3) A case study reviews compliance monitoring developed and implemented for the Waste Isolation Pilot Plant; and (4) An approach for developing, evaluating and implementing the next generation of performance confirmation monitoring is presented. International interest in repository monitoring is exhibited by the European Commission Seventh Framework Programme 'Monitoring Developments for Safe Repository Operation and Staged Closure' (MoDeRn) Project. The MoDeRn partners are considering the role of monitoring in a phased approach to the geological disposal of radioactive waste. As repository plans advance in different countries, the need to consider monitoring strategies within a controlled framework has become more apparent. The MoDeRn project pulls together technical and societal experts to assimilate a common understanding of a process that could be followed to develop a monitoring program. A fundamental consideration is the differentiation of confirmation monitoring from the many other testing and monitoring activities. Recently, the license application for Yucca Mountain provided a case study including a technical process for meeting regulatory requirements to confirm repository performance as well as considerations related to the preservation of retrievability. The performance confirmation plan developed as part of the Yucca Mountain license application identified a broad suite of monitoring activities. A revision of the plan was expected to winnow the number of activities down to a manageable size. As a result, an objective process for the next stage of performance confirmation planning was developed as an integral part of an overarching long-term testing and monitoring strategy. The Waste Isolation Pilot Plant compliance monitoring program at once reflects its importance to stakeholders while demonstrating adequate understanding of relevant monitoring parameters. The compliance criteria were stated by regulation and are currently monitored as part of the regulatory rule for disposal. At the outset, the screening practice and parameter selection were not predicated on a direct or indirect correlation to system performance metrics, as was the case for Yucca Mountain. Later on, correlation to performance was established, and the Waste Isolation Pilot Plant continues to monitor ten parameters originally identified in the compliance certification documentation. The monitoring program has proven to be effective for the technical intentions and societal or public assurance. The experience with performance confirmation in the license application process for Yucca Mountain helped identify an objective, quantitative methodology for this purpose. Revision of the existing plan would be based on findings of the total system performance assessment. Identification and prioritization of confirmation activities would then derive from performance metrics associated with performance assessment. Given the understanding of repository performance confirmation, as reviewed in this paper, it is evident that the performance confirmation program for the Yucca Mountain project could be readily re-engaged if licensing activities resumed.

  6. Basic Electropolishing Process Research and Development in Support of Improved Reliable Performance SRF Cavities for the Future Accelerator

    SciTech Connect (OSTI)

    H. Tian, C.E. Reece,M.J. Kelley

    2009-05-01T23:59:59.000Z

    Future accelerators require unprecedented cavity performance, which is strongly influenced by interior surface nanosmoothness. Electropolishing is the technique of choice to be developed for high-field superconducting radiofrequency cavities. Electrochemical impedance spectroscopy (EIS) and related techniques point to the electropolishing mechanism of Nb in a sulfuric and hydrofluoric acid electrolyte of controlled by a compact surface salt film under F- diffusion-limited mass transport control. These and other findings are currently guiding a systematic characterization to form the basis for cavity process optimization, such as flowrate, electrolyte composition and temperature. This integrated analysis is expected to provide optimum EP parameter sets for a controlled, reproducible and uniform surface leveling for Nb SRF cavities.

  7. Thermoelectrics Partnership: High Performance Thermoelectric...

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

    High Performance Thermoelectric Waste Heat Recovery System Based on Zintl Phase Materials with Embedded Nanoparticles Thermoelectrics Partnership: High Performance Thermoelectric...

  8. PV performance modeling workshop summary report.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA); Cameron, Christopher P.

    2011-05-01T23:59:59.000Z

    During the development of a solar photovoltaic (PV) energy project, predicting expected energy production from a system is a key part of understanding system value. System energy production is a function of the system design and location, the mounting configuration, the power conversion system, and the module technology, as well as the solar resource. Even if all other variables are held constant, annual energy yield (kWh/kWp) will vary among module technologies because of differences in response to low-light levels and temperature. A number of PV system performance models have been developed and are in use, but little has been published on validation of these models or the accuracy and uncertainty of their output. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a PV Performance Modeling Workshop in Albuquerque, New Mexico, September 22-23, 2010. The workshop was intended to address the current state of PV system models, develop a path forward for establishing best practices on PV system performance modeling, and set the stage for standardization of testing and validation procedures for models and input parameters. This report summarizes discussions and presentations from the workshop, as well as examines opportunities for collaborative efforts to develop objective comparisons between models and across sites and applications.

  9. CANDU human performance analysis

    SciTech Connect (OSTI)

    Walker, I.

    1987-01-01T23:59:59.000Z

    An evaluation of human performance is presented in this paper in the context of the operational safety management system. To focus on problems, an experience review program has been developed to establish trends, demonstrate the degree of compliance with standards, and determine the causes of poor performance. The primary method by which the experience review takes place is significant event reporting (SER). A significant event is an incident that causes an undesirable effect on safety, product quality, environmental protection, or product cost. In spite of advanced technology and the degree of automation of the Canada deuterium uranium (CANDU) design, mistakes and malfunctions to occur. Considerable effort has been made to prevent or reduce the incidence of error. The Institute of Nuclear Power Operations developed a system to analyze human error, called the Human Performance Evaluation System (HPES). To encourage an open exchange of information, the system is anonymous and nonpunitive. All data gathered during HPES evaluations are kept confidential.

  10. ARM - 2008 Performance Metrics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011AstudiesRing Under7 Performance8 Performance

  11. Anode performance | EMSL

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

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

  12. Advanced Detector Research - Fabrication and Testing of 3D Active-Edge Silicon Sensors: High Speed, High Yield

    SciTech Connect (OSTI)

    Parker, Sherwood I

    2008-09-01T23:59:59.000Z

    Development of 3D silicon radiation sensors employing electrodes fabricated perpendicular to the sensor surfaces to improve fabrication yields and increasing pulse speeds.

  13. Improving Biomass Yields: High Biomass, Low Input Dedicated Energy Crops to Enable a Full Scale Bioenergy Industry

    SciTech Connect (OSTI)

    None

    2010-01-01T23:59:59.000Z

    Broad Funding Opportunity Announcement Project: Ceres is developing bigger and better grasses for use in biofuels. The bigger the grass yield, the more biomass, and more biomass means more biofuel per acre. Using biotechnology, Ceres is developing grasses that will grow bigger with less fertilizer than current grass varieties. Hardier, higher-yielding grass also requires less land to grow and can be planted in areas where other crops can’t grow instead of in prime agricultural land. Ceres is conducting multi-year trials in Arizona, Texas, Tennessee, and Georgia which have already resulted in grass yields with as much as 50% more biomass than yields from current grass varieties.

  14. Calibration methodology for proportional counters applied to yield measurements of a neutron burst

    SciTech Connect (OSTI)

    Tarifeño-Saldivia, Ariel, E-mail: atarifeno@cchen.cl, E-mail: atarisal@gmail.com; Pavez, Cristian; Soto, Leopoldo [Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago (Chile) [Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago (Chile); Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Santiago (Chile); Departamento de Ciencias Fisicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Republica 220, Santiago (Chile); Mayer, Roberto E. [Instituto Balseiro and Centro Atómico Bariloche, Comisión Nacional de Energía Atómica and Universidad Nacional de Cuyo, San Carlos de Bariloche R8402AGP (Argentina)] [Instituto Balseiro and Centro Atómico Bariloche, Comisión Nacional de Energía Atómica and Universidad Nacional de Cuyo, San Carlos de Bariloche R8402AGP (Argentina)

    2014-01-15T23:59:59.000Z

    This paper introduces a methodology for the yield measurement of a neutron burst using neutron proportional counters. This methodology is to be applied when single neutron events cannot be resolved in time by nuclear standard electronics, or when a continuous current cannot be measured at the output of the counter. The methodology is based on the calibration of the counter in pulse mode, and the use of a statistical model to estimate the number of detected events from the accumulated charge resulting from the detection of the burst of neutrons. The model is developed and presented in full detail. For the measurement of fast neutron yields generated from plasma focus experiments using a moderated proportional counter, the implementation of the methodology is herein discussed. An experimental verification of the accuracy of the methodology is presented. An improvement of more than one order of magnitude in the accuracy of the detection system is obtained by using this methodology with respect to previous calibration methods.

  15. Why methyl tert-butyl ether production by reactive distillation may yield multiple solutions

    SciTech Connect (OSTI)

    Hauan, S.; Hertzberg, T.; Lien, K.M. [Univ. of Trondheim (Norway)

    1995-03-01T23:59:59.000Z

    This paper presents an explanation of why methyl tert-butyl ether (MTBE) production by reactive distillation may yield multiple solutions. Widely different composition profiles and conversions may, as already reported by Krishna and others, results with identical column specifications, depending on the initial estimates provided. A hypothesis yielding a qualitative understanding of this phenomenon has been developed. The inert n-butene plays a key role in the proposed explanation: As the reaction mixture is diluted with n-butene, the activity coefficient of methanol increases substantially and the temperature decreases. This dilution has a profound effect on the equilibrium conversion, enabling MTBE to escape from the reactive zone without decomposition. When methanol is fed below or in the lower part of the reactive zone of the column, the ``lifting capacity`` of the minimum boiling point MTBE-methanol azeotrope will also be important.

  16. A New Seismic Data System for Determining Nuclear Test Yields At the Nevada Test Site

    SciTech Connect (OSTI)

    LEE, JONATHAN W.

    2001-11-01T23:59:59.000Z

    An important capability in conducting underground nuclear tests is to be able to determine the nuclear test yield accurately within hours after a test. Due to a nuclear test moratorium, the seismic method that has been used in the past has not been exercised since a non-proliferation high explosive test in 1993. Since that time, the seismic recording system and the computing environment have been replaced with modern equipment. This report describes the actions that have been taken to preserve the capability for determining seismic yield, in the event that nuclear testing should resume. Specifically, this report describes actions taken to preserve seismic data, actions taken to modernize software, and actions taken to document procedures. It concludes with a summary of the current state of the data system and makes recommendations for maintaining this system in the future.

  17. Study of the B{sup -}{yields}J/{psi}K{sup -}{pi}{sup +}{pi}{sup -} decay and measurement of the B{sup -}{yields}X(3872)K{sup -} branching fraction

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Gaillard, J.-M.; Hicheur, A.; Karyotakis, Y.; Lees, J. P.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France); Palano, A.; Pompili, A. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y. S. [Institute of High Energy Physics, Beijing 100039 (China); Eigen, G.; Ofte, I.; Stugu, B. [University of Bergen, Inst. of Physics, N-5007 Bergen (Norway)] [and others

    2005-04-01T23:59:59.000Z

    We study the decay B{sup -}{yields}J/{psi}K{sup -}{pi}{sup +}{pi}{sup -} using 117x10{sup 6} BB events collected at the Y(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} asymmetric-energy storage ring. We measure the branching fractions B (B{sup -}{yields}J/{psi}K{sup -}{pi}{sup +}{pi}{sup -})=(116{+-}7(stat.){+-}9(syst.))x10{sup -5} and B (B{sup -}{yields}X(3872)K{sup -})x B (X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -})=(1.28{+-}0.41)x10{sup -5} and find the mass of the X(3872) to be 3873.4{+-}1.4 MeV/c{sup 2}. We search for the h{sub c} narrow state in the decay B{sup -}{yields}h{sub c}K{sup -}, h{sub c}{yields}J/{psi}{pi}{sup +}{pi}{sup -} and for the decay B{sup -}{yields}J/{psi}D{sup 0}{pi}{sup -}, with D{sup 0}{yields}K{sup -}{pi}{sup +}. We set the 90% C.L. limits B(B{sup -}{yields}h{sub c}K{sup -})xB(h{sub c}{yields}J/{psi}{pi}{sup +}{pi}{sup -})<3.4x10{sup -6} and B(B{sup -}{yields}J/{psi}D{sup 0}{pi}{sup -})<5.2x10{sup -5}.

  18. Do yield and quality of big bluestem and switchgrass feedstock decline over winter?

    SciTech Connect (OSTI)

    Jane M.F. Johnson; Garold L. Gresham

    2014-03-01T23:59:59.000Z

    Switchgrass (Panicum virgatum L.) and big bluestem (Andropogon gerdardii Vitman) are potential perennial bioenergy feedstocks. Feedstock storage limitations, labor constraints for harvest, and environmental benefits provided by perennials are rationales for developing localized perennial feedstock as an alternative or in conjunction with annual feedstocks (i.e., crop residues). Little information is available on yield, mineral, and thermochemical properties of native species as related to harvest time. The study’s objectives were to compare the feedstock quantity and quality between grasses harvested in the fall or the following spring. It was hypothesized that biomass yield may decline, but translocation and/or leaching of minerals from the feedstock would improve feedstock quality. Feedstock yield did not differ by crop, harvest time, or their interactions. Both grasses averaged 6.0 Mg ha-1 (fall) and 5.4 Mg ha-1 (spring) with similar high heating value (17.7 MJ kg-1). The K/(Ca + Mg) ratio, used as a quality indicator declined to below a 0.5 threshold, but energy yield (Megajoule per kilogram) decreased 13% by delaying harvest until spring. Only once during the four study-years were conditions ideal for early spring harvest, in contrast during another spring, very muddy conditions resulted in excessive soil contamination. Early spring harvest may be hampered by late snow, lodging, and muddy conditions that may delay or prevent harvest, and result in soil contamination of the feedstock. However, reducing slagging/fouling potential and the mass of mineral nutrients removed from the field without a dramatic loss in biomass or caloric content are reasons to delay harvest until spring.

  19. Method and apparatus for increasing the durability and yield of thin film photovoltaic devices

    DOE Patents [OSTI]

    Phillips, J.E.; Lasswell, P.G.

    1987-02-03T23:59:59.000Z

    Thin film photovoltaic cells having a pair of semiconductor layers between an opaque and a transparent electrical contact are manufactured in a method which includes the step of scanning one of the semiconductor layers to determine the location of any possible shorting defect. Upon the detection of such defect, the defect is eliminated to increase the durability and yield of the photovoltaic device. 10 figs.

  20. Effect of soil acidity factors on yields and foliar composition of tropical root crops

    SciTech Connect (OSTI)

    Abruna-Rodriguez, F.; Vicente-Chandler, J.I. Rivera, E.; Rodriguez, J.

    1982-09-01T23:59:59.000Z

    Tropical root crops, a major source of food for subsistence farmers, varied in their sensitivity to soil acidity factors. Tolerance to soil acidity is an important characteristic of crops for the humid tropics where soils are often very acid and lime-scarce and expensive. Experiments on two Ultisols and an Oxisol showed that three tropical root crops differed markedly in sensitivity to soil acicity factors. Yams (Dioscorea alata L.) were very sensitive to soil acidity with yields on a Ultisol decreasing from 70% of maximum when Al saturation of the effective cation exchange capacity of the soil was 10 to 25% of maximum when Al saturation was 40%. On the other hand, cassava (Manihot esculenta Crantz) was very tolerant to high levels of soil acidity, yielding about 85% of maximum with 60% Al saturation. Taniers (Xanthosoma sp.) were intermediate between yams and cassava in their tolerance to soil acidity yielding about 60% of maximum with 50% Al saturation of the soil. Foliar composition of cassava was not affected by soil acidity levels and that of yams and taniers was also unaffected except for Ca content which decreased with decreasing soil pH and increasing Al saturation.Response of these tropical root crops to soil acidity components was far more striking on Ultisols than on the Oxisol. For yams, soils should be limed to about pH 5.5 with essentially no exhangeable Al/sup 3 +/ present whereas high yields of taniers can be obtained at about pH 4.8 with 20% exchangeable Al/sup 3 +/ and of cassava at pH as low as 4.5 with 60% exchangeable Al/sup 3 +/.

  1. DILEPTON SIGNATURE IN e{sup +}e{sup -}{yields}Hl{sup +}e{sup -}

    SciTech Connect (OSTI)

    Kelly, R. L.; Shimada, T.

    1980-10-01T23:59:59.000Z

    We calculate the lepton distribution in the reaction e{sup +} e{sup -} {yields} (Higgs boson) + (dilepton) mediated by a neutral gauge boson. Propagator effects favor a slow dilepton for which the study of the joint angular distribution of l{sup +} and l{sup -} is an attractive experimental possibility. This distribution is found to be a sensitive probe of the ZZH vertex.

  2. Yield estimates and comparisons for full custom, standard cell, and gate array design methodologies

    E-Print Network [OSTI]

    Norte, Marcella Evelyn

    1990-01-01T23:59:59.000Z

    of the critical areas for the different design metnodologies are presented. The first approach pays specific attention to the intermodule interconnect and module complexity. The resulting critical areas from this first approach are then applied to Okabe...'s and Poisson's yield equations. The second approach is concerned more with the average width and spacing of interconnect and the spacing and number of modules. The critical areas for this second approach are applied to Poisson's equations for comparisons...

  3. Characterization of G×E Interactions on Yield and Quality of Muskmelon (Cucumis melo L.)

    E-Print Network [OSTI]

    Sharma, Sat Pal

    2014-07-13T23:59:59.000Z

    ×E to total variation of yield and components in melons ............................. 17 Table 2.4 ANOVA of genotype (G), environment (E), and genotype × environment (G×E) and percent contribution of G, E, and G... of phytochemicals over different environments. 8 2.2 Materials and methods Five commercial cultivars Mission, Journey, Orange Dew, Oro Duro, Sol Real and four advanced breeding lines TAMU 146, TAMU Orange Casaba, TAMU F39, and TAMU 1405 from the melon...

  4. Measurement of Scintillation and Ionization Yield and Scintillation Pulse Shape from Nuclear Recoils in Liquid Argon

    E-Print Network [OSTI]

    H. Cao; T. Alexander; A. Aprahamian; R. Avetisyan; H. O. Back; A. G. Cocco; F. DeJongh; G. Fiorillo; C. Galbiati; L. Grandi; Y. Guardincerri; C. Kendziora; W. H. Lippincott; C. Love; S. Lyons; L. Manenti; C. J. Martoff; Y. Meng; D. Montanari; P. Mosteiro; D. Olvitt; S. Pordes; H. Qian; B. Rossi; R. Saldanha; S. Sangiorgio; K. Siegl; S. Y. Strauss; W. Tan; J. Tatarowicz; S. Walker; H. Wang; A. W. Watson; S. Westerdale; J. Yoo

    2014-07-16T23:59:59.000Z

    We have measured the scintillation and ionization yield of recoiling nuclei in liquid argon as a function of applied electric field by exposing a dual-phase Liquid Argon Time Projection Chamber (LAr-TPC) to a low energy pulsed narrowband neutron beam produced at the Notre Dame Institute for Structure and Nuclear Astrophysics. Liquid scintillation counters were arranged to detect and identify neutrons scattered in the TPC and to select the energy of the recoiling nuclei. We report measurements of the scintillation yields for nuclear recoils with energies from 10.3 to 57.2 keV and for applied electric fields from 0 to 1000 V/cm. For the ionization yields, we report measurements from 16.9 to 57.2 keV and for electric fields from 50 to 500 V/cm. We also report the observation of an anti-correlation between scintillation and ionization from nuclear recoils, which is similar to the anti-correlation between scintillation and ionization from electron recoils. Assuming that the energy partition in excitons and ion pairs of $^{83m}$Kr internal conversion electrons is comparable to that of $^{207}$Bi conversion electrons, we obtained the numbers of excitons ($N_{\\rm ex}$) and ion pairs ($N_{\\rm i}$) and their ratio ($N_{\\rm ex}$/$N_{\\rm i}$) produced by nuclear recoils from 16.9 to 57.2 keV. Motivated by arguments suggesting direction sensitivity in LAr-TPC signals due to columnar recombination, a comparison of the light and charge yield of recoils parallel and perpendicular to the applied electric field is presented for the first time.

  5. Pickling cucumber yield as influenced by plant population, spacing and bed width

    E-Print Network [OSTI]

    Burkett, Albert Leroy

    1974-01-01T23:59:59.000Z

    assistance in planting, thinning and harvesting the trials made this thesis possible. Foundation Seed Section provided help in harvesting the crop, and to them sincere thanks are extended. Special thanks are extended to Agricultural Manufacturing... Page 1 Spacings and plant populations used in the pickling cucumber once-over mechanical harvesting study. 15 2 Effect of spacing on yield and quality of pickling cucumbers in number of fruit snd fruit weight in kg from the once-over harvest, 25...

  6. Experimental and analytical studies of hydrocarbon yields under dry-, steam-, and steam-with-propane distillation

    E-Print Network [OSTI]

    Jaiswal, Namit

    2007-09-17T23:59:59.000Z

    EXPERIMENTAL AND ANALYTICAL STUDIES OF HYDROCARBON YIELDS UNDER DRY-, STEAM-, AND STEAM-WITH- PROPANE DISTILLATION A Dissertation by NAMIT JAISWAL Submitted to the Office of Graduate Studies of Texas A&M University...-WITH- PROPANE-DISTILLATION A Dissertation by NAMIT JAISWAL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved...

  7. Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    -82 100 10 7 8 0 10 Completed in 1 business day 74% -14% 100% 60% 71% 63% 100% 100% Quality of performance measures and specific color code target values. Trend status color indicators ­ identifies changes Breakdown All Zones Combined Zone Breakdown Steam/Chilled Water Electric 17% 20% 0 100% 100% 1 Improvement

  8. Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    100 15 2 7 0 12 Completed in 1 business day 81% +7% 100% 80% 50% 57% 100% 100% Quality Inspections% No Change 100% Non-FLS 52% +35% 70% See Definitions Document for descriptions of performance measures Combined Zone Breakdown Steam/Chilled Water 0 0 n/a 55% Electric 100% 42% Improvement No Change Met Target

  9. Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    % 75% 100% 80% 100% 93% Quality Inspections Completed 54% +2% 95% 40% 34% 57% 88% 60% 54% Utilities for descriptions of performance measures and specific color code target values. Trend status color indicators ­ identifies changes from the prior month: Key: 0% 43% Electric 0% 11% All Zones Combined Zone Breakdown Steam

  10. General Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    Bank Central Svcs. Energy Mgmt Admin Preventive Maintenance: Fire/Life/Safety (FLS) 87% -4% 100% 47 Trend Initial Target Steam Chilled Utility Outages 2 +1% 0 0 0 Preventive Maintenance: Fire participation reading will be June 2012 *Budget data FYTD through March 2012 Maintenance: Performance Statistics

  11. General Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    Bank Central Svcs. Energy Mgmt Admin Preventive Maintenance: Fire/Life/Safety (FLS) 85% -12% 100% 80 Trend Initial Target Steam Chilled Utility Outages 3 -5 0 1 0 Preventive Maintenance: Fire participation reading will be August 2012 *Budget data FYTD through May 2012 Maintenance: Performance Statistics

  12. General Indicators: Performance Statistics

    E-Print Network [OSTI]

    Webb, Peter

    . Energy Mgmt Admin Preventive Maintenance: Fire/Life/Safety (FLS) 97% +10% 100% 96% 93% 99% 98% Non Chilled Utility Outages 8 +6% 0 1 2 Preventive Maintenance: Fire/Life/Safety (FLS) 100% No Change 100 will be June 2012 *Budget data FYTD through April 2012 Maintenance: Performance Statistics Current Month Change

  13. High Performance Window Retrofit

    SciTech Connect (OSTI)

    Shrestha, Som S [ORNL; Hun, Diana E [ORNL; Desjarlais, Andre Omer [ORNL

    2013-12-01T23:59:59.000Z

    The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and Traco partnered to develop high-performance windows for commercial building that are cost-effective. The main performance requirement for these windows was that they needed to have an R-value of at least 5 ft2 F h/Btu. This project seeks to quantify the potential energy savings from installing these windows in commercial buildings that are at least 20 years old. To this end, we are conducting evaluations at a two-story test facility that is representative of a commercial building from the 1980s, and are gathering measurements on the performance of its windows before and after double-pane, clear-glazed units are upgraded with R5 windows. Additionally, we will use these data to calibrate EnergyPlus models that we will allow us to extrapolate results to other climates. Findings from this project will provide empirical data on the benefits from high-performance windows, which will help promote their adoption in new and existing commercial buildings. This report describes the experimental setup, and includes some of the field and simulation results.

  14. High performance systems

    SciTech Connect (OSTI)

    Vigil, M.B. [comp.

    1995-03-01T23:59:59.000Z

    This document provides a written compilation of the presentations and viewgraphs from the 1994 Conference on High Speed Computing given at the High Speed Computing Conference, {open_quotes}High Performance Systems,{close_quotes} held at Gleneden Beach, Oregon, on April 18 through 21, 1994.

  15. High Performance Sustainable Building

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

    2008-06-20T23:59:59.000Z

    The guide supports DOE O 413.3A and provides useful information on the incorporation of high performance sustainable building principles into building-related General Plant Projects and Institutional General Plant Projects at DOE sites. Canceled by DOE G 413.3-6A. Does not cancel other directives.

  16. CEPC design performance considerations

    E-Print Network [OSTI]

    Koratzinos, M

    2015-01-01T23:59:59.000Z

    In this paper I will commend on the early CEPC design as of October 2014. In particular I will comment on the choice of circumference, minimum and maximum energy, number of collision points and target luminosity. I will finish with suggestions to increase performance with minimum incremental cost.

  17. Management and Performance NASA'S APPROACH TO PERFORMANCE MANAGEMENT

    E-Print Network [OSTI]

    Waliser, Duane E.

    TO PERFORMANCE MANAGEMENT conduct the Agency's day-to-day work. Figure 1 depicts NASA's organizational structureManagement and Performance NASA'S APPROACH TO PERFORMANCE MANAGEMENT NASA's FY 2015 Management as an organization and NASA's approach to performance management, strategic planning, and performance reporting

  18. The effect of mix on capsule yields as a function of shell thickness and gas fill

    SciTech Connect (OSTI)

    Bradley, P. A., E-mail: pbradley@lanl.gov [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2014-06-15T23:59:59.000Z

    An investigation of direct drive capsules with different shell thicknesses and gas fills was conducted to examine the amount of shock induced (Richtmyer-Meshkov) mix versus Rayleigh-Taylor mix from deceleration of the implosion. The RAGE (Eulerian) code with a turbulent mix model was used to model these capsules for neutron yields along with time-dependent mix amounts. The amount of Richtmyer-Meshkov induced mix from the shock breaking out of the shell is about 0.1??g (0.15??m of shell material), while the Rayleigh-Taylor mix is of order 1??g and determines the mixed simulation yield. The simulations were able to calculate a yield over mix (YOM) ratio (experiment/mix simulation) between 0.5 and 1.0 for capsules with shell thicknesses ranging from 7.5 to 20??m and with gas fills between 3.8 and 20?atm of D{sub 2} or DT. The simulated burn averaged T{sub ion} values typically lie with 0.5?keV of the data, which is within the measurement error. For capsules with shell thicknesses >25??m, the YOM values drop to 0.10?±?0.05, suggesting that some unmodeled effect needs to be accounted for in the thickest capsules.

  19. The {alpha}-induced thick-target {gamma}-ray yield from light elements

    SciTech Connect (OSTI)

    Heaton, R.K. [Queen`s Univ., Kingston, ON (Canada). Dept. of Physics]|[Lawrence Berkeley Lab., CA (United States)

    1994-10-01T23:59:59.000Z

    The {alpha}-induced thick-target {gamma}-ray yield from light elements has been measured in the energy range 5.6 MeV {le} E{sub {alpha}} {le} 10 MeV. The {gamma}-ray yield for > 2.1 MeV from thick targets of beryllium, boron nitride, sodium fluoride, magnesium, aluminum and silicon were measured using the {alpha}-particle beam from the Lawrence Berkeley Laboratories 88 in. cyclotron. The elemental yields from this experiment were used to construct the {alpha}-induced direct production {gamma}-ray spectrum from materials in the SNO detector, a large volume ultra-low background neutrino detector located in the Creighton mine near Sudbury, Canada. This background source was an order of magnitude lower than predicted by previous calculations. These measurements are in good agreement with theoretical calculations of this spectrum based on a statistical nuclear model of the reaction, with the gross high energy spectrum structure being reproduced to within a factor of two. Detailed comparison of experimental and theoretical excitation population distribution of several residual nuclei indicate the same level of agreement within experimental uncertainties.

  20. The Gaia Project - technique, performance and status

    E-Print Network [OSTI]

    Stefan Jordan

    2008-11-14T23:59:59.000Z

    Gaia is a satellite mission of the ESA, aiming at absolute astrometric measurements of about one billion stars (all stars down to 20th magnitude, with unprecedented accuracy. Additionally, magnitudes and colors will be obtained for all these stars, while radial-velocities and spectral properties will be determined only for bright objects (V<17.5). At 15th magnitude Gaia aims at an angular accuracy of 20 microarcseconds (muas). This goal can only be reached if the geometry of the telescopes, the detectors, and the pointing of Gaia at each moment ("attitude") can be inferred from the Gaia measurements itself with muas accuracy.

  1. HIGH PERFORMANCE COMPUTING

    E-Print Network [OSTI]

    Ra Baldini; Luc Giraud; Javier G. Izaguirre; Jose M. Jimenez; Luis M. Matey; Sandra Baldini; Luc Giraud; Javier G. Izaguirre; Jose M. Jimenez; Luis M. Matey

    This paper presents recent developments of high performance computing and networking techniques in the field of computer-aided multibody analysis and design. The authors describe the main achievements obtained in the development of a tool to aid in the design of new industrial mechanical systems by performing parallel parametric multibody simulations. The parallel software is composed of four main modules: two user-friendly interfaces to input the data and visualize the results, a simulation module, and a parallel manager module that is the main focus of this paper. The authors show that the implementation, using PVM, of simple and well-known ideas leads to efficient and flexible parallel software targeted for heterogeneous networks of nondedicated workstations, which is the parallel platform available in most mechanical design departments.

  2. PERFORMANCE OBJECTIVES FOR TANK FARM CLOSURE PERFORMANCE ASSESSMENTS

    SciTech Connect (OSTI)

    MANN, F.M.; CRUMPLER, J.D.

    2005-09-30T23:59:59.000Z

    This report documents the performance objectives (metrics, times of analyses, and times of compliance) to be used in performance assessments of Hanford Site tank farm closure.

  3. Forecasting oilfield economic performance

    SciTech Connect (OSTI)

    Bradley, M.E. (Univ. of Chicago, IL (United States)); Wood, A.R.O. (BP Exploration, Anchorage, AK (United States))

    1994-11-01T23:59:59.000Z

    This paper presents a general method for forecasting oilfield economic performance that integrates cost data with operational, reservoir, and financial information. Practices are developed for determining economic limits for an oil field and its components. The economic limits of marginal wells and the role of underground competition receive special attention. Also examined is the influence of oil prices on operating costs. Examples illustrate application of these concepts. Categorization of costs for historical tracking and projections is recommended.

  4. Building Performance Evaluation

    E-Print Network [OSTI]

    King, A.; Harris, J.; Mbentin, B.

    2012-01-01T23:59:59.000Z

    carbon technologies. ? Lack of proper system commissioning and installation led to the underperformance of systems and construction defects. ? Occupants had a lack of understanding of the building sustainability features. ? ?Unplanned changes... to space usage to meet new needs? led to poor internal environmental conditions. Building Performance Evaluation ? Impact survey The impact of the programme ? Three respondents have already added BPE to their portfolio ? Twenty will do more work...

  5. High performance polymeric foams

    SciTech Connect (OSTI)

    Gargiulo, M.; Sorrentino, L. [Institute for Composite and Biomedical Materials (IMCB)-CNR, P.le Tecchio 80, 80125 Naples (Italy); Iannace, S. [Institute for Composite and Biomedical Materials (IMCB)-CNR, P.le Tecchio 80, 80125 Naples (Italy) and Technological District on Polymeric and Composite Materials Engineering and Structures (IMAST), P.le E.Fermi 1, location Porto del Granatello, 80055 Portici (Naples)

    2008-08-28T23:59:59.000Z

    The aim of this work was to investigate the foamability of high-performance polymers (polyethersulfone, polyphenylsulfone, polyetherimide and polyethylenenaphtalate). Two different methods have been used to prepare the foam samples: high temperature expansion and two-stage batch process. The effects of processing parameters (saturation time and pressure, foaming temperature) on the densities and microcellular structures of these foams were analyzed by using scanning electron microscopy.

  6. High Performance Buildings Database

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

    The High Performance Buildings Database is a shared resource for the building industry, a unique central repository of in-depth information and data on high-performance, green building projects across the United States and abroad. The database includes information on the energy use, environmental performance, design process, finances, and other aspects of each project. Members of the design and construction teams are listed, as are sources for additional information. In total, up to twelve screens of detailed information are provided for each project profile. Projects range in size from small single-family homes or tenant fit-outs within buildings to large commercial and institutional buildings and even entire campuses. The database is a data repository as well. A series of Web-based data-entry templates allows anyone to enter information about a building project into the database. Once a project has been submitted, each of the partner organizations can review the entry and choose whether or not to publish that particular project on its own Web site.

  7. Mentoring Human Performance - 12480

    SciTech Connect (OSTI)

    Geis, John A.; Haugen, Christian N. [CALIBRE Systems, Inc., Alexandria, Virginia (United States)

    2012-07-01T23:59:59.000Z

    Although the positive effects of implementing a human performance approach to operations can be hard to quantify, many organizations and industry areas are finding tangible benefits to such a program. Recently, a unique mentoring program was established and implemented focusing on improving the performance of managers, supervisors, and work crews, using the principles of Human Performance Improvement (HPI). The goal of this mentoring was to affect behaviors and habits that reliably implement the principles of HPI to ensure continuous improvement in implementation of an Integrated Safety Management System (ISMS) within a Conduct of Operations framework. Mentors engaged with personnel in a one-on-one, or one-on-many dialogue, which focused on what behaviors were observed, what factors underlie the behaviors, and what changes in behavior could prevent errors or events, and improve performance. A senior management sponsor was essential to gain broad management support. A clear charter and management plan describing the goals, objectives, methodology, and expected outcomes was established. Mentors were carefully selected with senior management endorsement. Mentors were assigned to projects and work teams based on the following three criteria: 1) knowledge of the work scope; 2) experience in similar project areas; and 3) perceived level of trust they would have with project management, supervision, and work teams. This program was restructured significantly when the American Reinvestment and Recovery Act (ARRA) and the associated funding came to an end. The program was restructured based on an understanding of the observations, attributed successes and identified shortfalls, and the consolidation of those lessons. Mentoring the application of proven methods for improving human performance was shown effective at increasing success in day-to-day activities and increasing confidence and level of skill of supervisors. While mentoring program effectiveness is difficult to measure, and return on investment is difficult to quantify, especially in complex and large organizations where the ability to directly correlate causal factors can be challenging, the evidence presented by Sydney Dekker, James Reason, and others who study the field of human factors does assert managing and reducing error is possible. Employment of key behaviors-HPI techniques and skills-can be shown to have a significant impact on error rates. Our mentoring program demonstrated reduced error rates and corresponding improvements in safety and production. Improved behaviors are the result, of providing a culture with consistent, clear expectations from leadership, and processes and methods applied consistently to error prevention. Mentoring, as envisioned and executed in this program, was effective in helping shift organizational culture and effectively improving safety and production. (authors)

  8. Advanced Robotics Minimally invasive surgery (MIS) and robotics technologies have

    E-Print Network [OSTI]

    Denham, Graham

    arms and instruments that work like wrists to perform complex procedures with an unprecedented degree

  9. High Performance Computing School COMSC

    E-Print Network [OSTI]

    Martin, Ralph R.

    High Performance Computing School COMSC This module aims to provide the students with fundamental knowledge and understanding of techniques associated with High Performance Computing and its practical' skills in analysing and evaluating High Performance Computing and will be structured around

  10. Study of the K{sup +}{pi}{sup +}{pi}{sup -} final state in B{sup +}{yields}J/{psi}K{sup +}{pi}{sup +}{pi}{sup -} and B{sup +}{yields}{psi}'K{sup +}{pi}{sup +}{pi}{sup -}

    SciTech Connect (OSTI)

    Guler, H. [University of Hawaii, Honolulu, Hawaii 96822 (United States); McGill University, Montreal (Canada); Universite de Montreal, Montreal (Canada); Aihara, H. [Department of Physics, University of Tokyo, Tokyo (Japan); Arinstein, K.; Aulchenko, V.; Eidelman, S.; Kuzmin, A.; Poluektov, A.; Zhilich, V.; Zhulanov, V. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation); Novosibirsk State University, Novosibirsk (Russian Federation); Aushev, T. [Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne (Switzerland); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bakich, A. M.; McOnie, S. [School of Physics, University of Sydney, NSW 2006 (Australia); Balagura, V.; Liventsev, D.; Mizuk, R.; Pakhlov, P. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Barberio, E.; Julius, T.; Sevior, M. E. [University of Melbourne, School of Physics, Victoria 3010 (Australia); Belous, K. [Institute of High Energy Physics, Protvino (Russian Federation)

    2011-02-01T23:59:59.000Z

    Using 535x10{sup 6} B-meson pairs collected by the Belle detector at the KEKB e{sup +}e{sup -} collider, we measure branching fractions of (7.16{+-}0.10(stat){+-}0.60(syst)x10{sup -4} for B{sup +}{yields}J/{psi}K{sup +}{pi}{sup +}{pi}{sup -} and (4.31{+-}0.20(stat){+-}0.50(syst))x10{sup -4} for B{sup +}{yields}{psi}'K{sup +}{pi}{sup +}{pi}{sup -}. We perform amplitude analyses to determine the resonant structure of the K{sup +}{pi}{sup +}{pi}{sup -} final state in B{sup +}{yields}J/{psi}K{sup +}{pi}{sup +}{pi}{sup -} and B{sup +}{yields}{psi}'K{sup +}{pi}{sup +}{pi}{sup -} and find that the K{sub 1}(1270) is a prominent component of both decay modes. There is significant interference among the different intermediate states, which leads, in particular, to a striking distortion of the {rho} line shape due to the {omega}. Based on the results of the fit to the B{sup +}{yields}J/{psi}K{sup +}{pi}{sup +}{pi}{sup -} data, the relative decay fractions of the K{sub 1}(1270) to K{rho}, K{omega}, and K*(892){pi} are consistent with previous measurements, but the decay fraction to K{sub 0}*(1430) is significantly smaller. Finally, by floating the mass and width of the K{sub 1}(1270) in an additional fit of the B{sup +}{yields}J/{psi}K{sup +}{pi}{sup +}{pi}{sup -} data, we measure a mass of (1248.1{+-}3.3(stat){+-}1.4(syst)) MeV/c{sup 2} and a width of (119.5{+-}5.2(stat){+-}6.7(syst)) MeV/c{sup 2} for the K{sub 1}(1270).

  11. Absolute x-ray yields from laser-irradiated germanium-doped low-density aerogels

    SciTech Connect (OSTI)

    Fournier, K. B.; Satcher, J. H.; May, M. J.; Poco, J. F.; Sorce, C. M.; Colvin, J. D.; Hansen, S. B.; MacLaren, S. A.; Moon, S. J.; Davis, J. F. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Girard, F.; Villette, B.; Primout, M.; Babonneau, D. [Commissariat a l'Energie Atomique-Direction des Application Militaires (CEA/DAM), Ile-de-France, F91297 Arpajon (France); Coverdale, C. A.; Beutler, D. E. [Sandia National Laboratory, Albuquerque, New Mexico 87185 (United States)

    2009-05-15T23:59:59.000Z

    The x-ray yields from laser-irradiated germanium-doped ultra-low-density aerogel plasmas have been measured in the energy range from sub-keV to {approx_equal}15 keV at the OMEGA laser facility at the Laboratory for Laser Energetics, University of Rochester. The targets' x-ray yields have been studied for variation in target size, aerogel density, laser pulse length, and laser intensity. For targets that result in plasmas with electron densities in the range of {approx_equal}10% of the critical density for 3{omega} light, one can expect 10-11 J/sr of x rays with energies above 9 keV, and 600-800 J/sr for energies below 3.5 keV. In addition to the x-ray spectral yields, the x-ray temporal waveforms have been measured and it is observed that the emitted x rays generally follow the delivered laser power, with late-time enhancements of emitted x-ray power correlated with hydrodynamic compression of the hot plasma. Further, the laser energy reflected from the target by plasma instabilities is found to be 2%-7% of the incident energy for individual beam intensities {approx_equal}10{sup 14}-10{sup 15} W/cm{sup 2}. The propagation of the laser heating in the target volume has been characterized with two-dimensional imaging. Source-region heating is seen to be correlated with the temporal profile of the emitted x-ray power.

  12. Absolute X-Ray Yields From Laser-Irradiated Ge-Doped Low-Density Aerogels

    SciTech Connect (OSTI)

    Fournier, K B; Satcher, J H; May, M J; Poco, J F; Sorce, C M; Colvin, J D; Hansen, S B; MacLaren, S A; Moon, S J; Davis, J F; Girard, F; Villette, B; Primout, M; Babonneau, D; Coverdale, C A; Beutler, D E

    2009-02-10T23:59:59.000Z

    We have used the OMEGA laser (Laboratory for Laser Energetics, University of Rochester) to measure the X-ray yields from laser-irradiated germanium-doped ultra-low-density aerogel plasmas in the energy range from sub-keV to {approx} 15 keV. They have studied the targets X-ray yields with variation in target size, aerogel density, laser pulse length and laser intensity. For targets that result in plasmas with electron densities in the range of {approx} 10% of the critical density for 3{omega} light, one can expect 10-11 J/sr of X-rays with energies above 9 keV, and 600-800 J/sr for energies below 3.5 keV. In addition to the X-ray spectral yields, they have measured the X-ray temporal waveforms and found that the emitted X rays generally follow the delivered laser power, with late-time enhancements of emitted X-ray power correlated with hydrodynamic compression of the hot plasma. Also, they find the laser energy reflected from the target by plasma instabilities to be 2-7% of the incident energy for individual beam intensities {approx} 10{sup 14}-10{sup 15} W/cm{sup 2}. They also have characterized the propagation of the laser heating in the target volume with two-dimensional imaging. They find the source-region heating to be correlated with the temporal profile of the emitted X-ray power.

  13. Evaluating Steam Trap Performance

    E-Print Network [OSTI]

    Fuller, N. Y.

    ~LmT " TRIf' 1 TRIf' 2 Figure 2 It has become common practice for engineers to oversize steam traps and place more emphasis on first cost than on maintenance cost and operating 766 3 4 ESL-IE-86-06-126 Proceedings from the Eighth Annual Industrial...EVALUATING STEAM TRAP PERFORMANCE Noel Y Fuller, P.E. Holston Defense Corporation Kingsport, Tennessee ABSTRACT Laboratory tests were conducted on several types of steam traps at Holston Defense Corporation in Kingsport, Tennessee. Data...

  14. HIGS Flux Performance Projection

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

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

  15. ARM - 2006 Performance Metrics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011AstudiesRing Under Maintenance8Meeting6 Performance

  16. ARM - 2007 Performance Metrics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011AstudiesRing Under7 Performance Metrics Science

  17. ARM - 2009 Performance Metrics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011AstudiesRing Under79 Performance Metrics Science

  18. Fission product yields for fast-neutron fission of /sup 243,244,246,248/Cm

    SciTech Connect (OSTI)

    Dickens, J.K.

    1987-05-01T23:59:59.000Z

    Recent measurements of relative yields for /sup 95/Zr, /sup 125/Sb, /sup 137/Cs, /sup 141/Ce, /sup 144/Ce, and /sup 155/Eu for fast-neutron fission of samples enriched in the actinides /sup 243,244,246,248/Cm have been combined with a simple mass-distribution model to predict complete mass distributions for fast-neutron fission of each of these four curium actinides. Complete descriptions of the data analysis and of the model and its application and limitations are given.

  19. Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system

    DOE Patents [OSTI]

    Shelnutt, John A. (Albuquerque, NM)

    1986-01-01T23:59:59.000Z

    A method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system for hydrogen generation which comprises forming an aqueous solution comprising an electron donor, methylviologen, and certain metalloporphyrins and metallochlorins, and irradiating said aqueous solution with light in the presence of a catalyst. In the photosynthesis process, solar energy is collected and stored in the form of a gas hydrogen. Ligands attached above and below the metalloporphyrin and metallochlorin plane are capable of sterically blocking photochemically inactive electrostatically bound .pi.--.pi. complexes which can develop.

  20. Method for improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system

    DOE Patents [OSTI]

    Shelnutt, J.A.

    1984-11-29T23:59:59.000Z

    A method is disclosed improving product yields in an anionic metalloporphyrin-based artificial photosynthesis system for hydrogen generation. The method comprises forming an aqueous solution comprising an electron donor, methylviologen, and certain metalloporphyrins and metallochlorins, and irradiating said aqueous solution with light in the presence of a catalyst. In the photosynthesis process, solar energy is collected and stored in the form of a hydrogen. Ligands attached above and below the metalloporphyrin and metallochlorin plane are capable of sterically blocking photochemically inactive electrostatically bound ..pi..-..pi.. complexes which can develop.

  1. Increasing the creation yield of shallow single defects in diamond by surface plasma treatment

    SciTech Connect (OSTI)

    Osterkamp, Christian; Scharpf, Jochen; Naydenov, Boris; Jelezko, Fedor [Institut für Quantenoptik, Ulm University, Albert Einstein Allee 11, Ulm 89081 (Germany)] [Institut für Quantenoptik, Ulm University, Albert Einstein Allee 11, Ulm 89081 (Germany); Pezzagna, Sebastien; Meijer, Jan [Institut für Experimentelle Physik II, Abteilung Nukleare Festkörperphysik, Universität Leipzig, Linnestraße 5, Leipzig 04103 (Germany)] [Institut für Experimentelle Physik II, Abteilung Nukleare Festkörperphysik, Universität Leipzig, Linnestraße 5, Leipzig 04103 (Germany); Diemant, Thomas; Jürgen Behm, Rolf [Institut für Oberflächenchemie und Katalyse, Ulm University, Albert-Einstein-Allee 47, Ulm 89081 (Germany)] [Institut für Oberflächenchemie und Katalyse, Ulm University, Albert-Einstein-Allee 47, Ulm 89081 (Germany)

    2013-11-04T23:59:59.000Z

    Single Nitrogen-Vacancy (NV) centers in diamond close to the crystal surface are very promising magnetic field sensors with very high sensitivity. Here, we report the enhanced creation of very shallow (less than 3 nm below the diamond surface) NV centers by using fluorine and oxygen plasma treatment. We observe a four fold increase—from 0.11% to about 0.45% in the production yield when the sample surface is terminated with fluorine or oxygen atoms. This effect is explained by the stabilization of the NV's negative charge state which is influenced by the various defects present on the diamond surface.

  2. Road Blocks Yield Key Information about a Catalyst | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource Program September DepartmentRioRisk2Road Blocks Yield

  3. Spatial stochastic processes for yield and reliability management with applications to nano electronics

    E-Print Network [OSTI]

    Hwang, Jung Yoon

    2005-02-17T23:59:59.000Z

    work that points out the statistical aspect of defect density variation [6]. If we assume the uniform distribution on [0;2D0], then we have Y = 1 ? e ?2AcD0 2AcD0 : This model assumes that the defect density is uniform up to 2D0. It can be considered... pattern is modeled by an intensity function of the process de?ned as equation (6.4). The new yield models have several advantages as follows: (1) a huge amount of wafer defect data can be reduced by the coe?cients of the intensity function, (2...

  4. Performing an allreduce operation on a plurality of compute nodes of a parallel computer

    DOE Patents [OSTI]

    Faraj, Ahmad

    2013-02-12T23:59:59.000Z

    Methods, apparatus, and products are disclosed for performing an allreduce operation on a plurality of compute nodes of a parallel computer, each node including at least two processing cores, that include: performing, for each node, a local reduction operation using allreduce contribution data for the cores of that node, yielding, for each node, a local reduction result for one or more representative cores for that node; establishing one or more logical rings among the nodes, each logical ring including only one of the representative cores from each node; performing, for each logical ring, a global allreduce operation using the local reduction result for the representative cores included in that logical ring, yielding a global allreduce result for each representative core included in that logical ring; and performing, for each node, a local broadcast operation using the global allreduce results for each representative core on that node.

  5. SIMULATING THE FEASIBILITY AND PERFORMANCE OF A REALTIME WATER MARKET BY COUPLING AN AGENTBASED MODEL AND

    E-Print Network [OSTI]

    Yang, Zong-Liang

    without artificial irrigation (bushel/acre) : maximum yield without water shortage(bushel/acre) : maximumSIMULATING THE FEASIBILITY AND PERFORMANCE OF A REALTIME WATER MARKET BY COUPLING AN AGENTBASED Engineering, University of Illinois at Urbana­Champaign Erhu Du1, Barbara Minsker1 and Ximing Cai1, Water

  6. SOUTHWEST COTTON HARVEST AID PERFORMANCE AND NARROW ROW OPTIONS Wayne Keeling

    E-Print Network [OSTI]

    Mukhtar, Saqib

    SOUTHWEST COTTON HARVEST AID PERFORMANCE AND NARROW ROW OPTIONS Wayne Keeling Texas Agricultural Experiment Station Lubbock, TX Abstract Cotton is produced in the Southwest (Texas and Oklahoma) under a wide in rainfall and availability of irrigation, yields may range from 1250 lb/A. Cotton is harvested

  7. REVIEWING PERFORMANCE ASSESSMENTS SUPPORTING

    E-Print Network [OSTI]

    Robert J. Lewis

    2010-01-01T23:59:59.000Z

    Purpose: To summarize current NRC policy and guidance, which should assist in making informed decisions regarding land disposal of unique low-level radioactive waste streams, including disposal of significant quantities of depleted uranium until a new regulation is implemented. Background: In September 2009, NRC staff conducted two public workshops soliciting early public input on major issues associated with a potential rulemaking for land disposal of unique waste streams including, but not limited to, significant quantities of depleted uranium. During these workshops, a number of stakeholders expressed interest or concern with the review of performance assessments supporting land disposal of unique waste streams prior to completion of the rulemaking process. Discussion: The enclosure contains a summary of existing guidance for reviewing performance assessments with a focus on issues associated with the safe disposal of unique waste streams. NRC staff is providing this guidance to the Agreement States for their information, and for distribution to their licensees, as appropriate. If you have any questions regarding this correspondence, please contact me at 301-415-3340 or the individuals named below.

  8. Nonadiabatic reactive scattering in atom+triatom systems: Nascent rovibronic distributions in F+H{sub 2}O{yields}HF+OH

    SciTech Connect (OSTI)

    Ziemkiewicz, Michael; Nesbitt, David J. [JILA, National Institute of Standards and Technology, University of Colorado, Boulder, Colorado 80309-0440 (United States) and Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0440 (United States)

    2009-08-07T23:59:59.000Z

    Crossed supersonic jet studies of F+H{sub 2}O{yields}HF+OH({sup 2}{Pi}{sub 3/2},{sup 2}{Pi}{sub 1/2}) have been performed under low density, single collision conditions at E{sub com}=6(2) kcal/mol, yielding rotational, vibrational, and spin-orbit state distributions in the nascent OH product by laser induced fluorescence methods. The lowest reaction barriers on the ground and first excited electronic surfaces are {Delta}E{approx_equal}4 kcal/mol and {Delta}E{approx_equal}25 kcal/mol, correlating with OH({sup 2}{Pi}{sub 3/2}) and OH({sup 2}{Pi}{sub 1/2}), respectively. Although only reactions on the ground state potential are Born-Oppenheimer allowed at the experimental collision energies, both ground and excited spin-orbit OH products are observed in a {sup 2}{Pi}{sub 3/2}:{sup 2}{Pi}{sub 1/2}=69(1)%:31(1)% branching ratio. This indicates the presence of strong nonadiabatic surface hopping interactions, in agreement with previous results for the F+D{sub 2}O{yields}DF+OD reaction. Despite clear differences in the rotational distributions between F+H{sub 2}O and F+D{sub 2}O isotopic reactions, the overall electronic branching into spin-orbit manifolds is nearly identical for both OH and OD products. Furthermore, when plotted versus total electronic+rotational energy, the nascent OH and OD populations each lie on single curves, with pronounced kinks in the Boltzmann plots suggestive of microscopic branching in the reaction dynamics. Such an equivalence of electronic and rotational energy release in the OH/OD products is consistent with predominantly nonadiabatic processes taking place in the immediate post-transition state region rather than asymptotically in the exit channel.

  9. Hydrogen engine performance analysis project. Second annual report

    SciTech Connect (OSTI)

    Adt, Jr., R. R.; Swain, M. R.; Pappas, J. M.

    1980-01-01T23:59:59.000Z

    Progress in a 3 year research program to evaluate the performance and emission characteristics of hydrogen-fueled internal combustion engines is reported. Fifteen hydrogen engine configurations will be subjected to performance and emissions characterization tests. During the first two years, baseline data for throttled and unthrottled, carburetted and timed hydrogen induction, Pre IVC hydrogen-fueled engine configurations, with and without exhaust gas recirculation (EGR) and water injection, were obtained. These data, along with descriptions of the test engine and its components, the test apparatus, experimental techniques, experiments performed and the results obtained, are given. Analyses of other hydrogen-engine project data are also presented and compared with the results of the present effort. The unthrottled engine vis-a-vis the throttled engine is found, in general, to exhibit higher brake thermal efficiency. The unthrottled engine also yields lower NO/sub x/ emissions, which were found to be a strong function of fuel-air equivalence ratio. (LCL)

  10. SIMS analysis of high-performance accelerator niobium

    SciTech Connect (OSTI)

    Maheshwari, P. [NCSU; Stevie, F. A. [NCSU; Myneni, Ganapati Rao [JLAB; Rigsbee, J, M. [NCSU; Dhakal, Pashupati [JLAB; Ciovati, Gianluigi [JLAB; Griffis, D. P. [NCSU

    2014-11-01T23:59:59.000Z

    Niobium is used to fabricate superconducting radio frequency accelerator modules because of its high critical temperature, high critical magnetic field, and easy formability. Recent experiments have shown a very significant improvement in performance (over 100%) after a high-temperature bake at 1400 degrees C for 3h. SIMS analysis of this material showed the oxygen profile was significantly deeper than the native oxide with a shape that is indicative of diffusion. Positive secondary ion mass spectra showed the presence of Ti with a depth profile similar to that of O. It is suspected that Ti is associated with the performance improvement. The source of Ti contamination in the anneal furnace has been identified, and a new furnace was constructed without Ti. Initial results from the new furnace do not show the yield improvement. Further analyses should determine the relationship of Ti to cavity performance.

  11. Observation of the {psi}(4415){yields}DD{sub 2}*(2460) Decay Using Initial-State Radiation

    SciTech Connect (OSTI)

    Pakhlova, G.; Balagura, V.; Chistov, R.; Danilov, M.; Liventsev, D.; Medvedeva, T.; Mizuk, R.; Pakhlov, P.; Tikhomirov, I.; Uglov, T. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Adachi, I.; Brodzicka, J.; Haba, J.; Hazumi, M.; Itoh, R.; Iwasaki, Y.; Kibayashi, A.; Kichimi, H.; Krokovny, P.; Nakao, M. [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (and others)

    2008-02-15T23:59:59.000Z

    We report measurements of the exclusive cross section for e{sup +}e{sup -}{yields}D{sup 0}D{sup -}{pi}{sup +} over the center-of-mass energy range 4.0 GeV to 5.0 GeV with initial-state radiation and the first observation of the decay {psi}(4415){yields}D{sup 0}D{sup -}{pi}{sup +}. From a study of the resonant substructure in {psi}(4415) decay we conclude that the {psi}(4415){yields}D{sup 0}D{sup -}{pi}{sup +} decay is dominated by {psi}(4415){yields}DD{sub 2}*(2460). We obtain B({psi}(4415){yields}D{sup 0}D{sup -}{pi}{sub nonresonant}{sup +})/B({psi}(4415){yields}DD{sub 2}*(24 = 60){yields}D{sup 0}D{sup -}{pi}{sup +})<0.22 at 90% C.L. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673 fb{sup -1}.

  12. Recent advances in the US fission yield and delayed neutron evaluations

    SciTech Connect (OSTI)

    England, T.R.; Rider, B.F. [Los Alamos National Lab., NM (United States); Brady, M.C. [Sandia National Labs., Albuquerque, NM (United States)

    1992-08-01T23:59:59.000Z

    Over the past fifteen years, US reactor analysts have been presented with three major evaluated nuclear data bases: Evaluated Nuclear Data Files (ENDF/B) versions -IV, -V, and most recently, -VI. Advances in the quantity and quality of fission yield data have been almost exponential from evaluation to evaluation. The most recent release of ENDF/B-VI represents an entirely new approach to the evaluation of delayed neutron data. Due to the effort and expense of processing and testing the basic data evaluations for specific applications, data libraries contained in the m mn reactor physics codes are not usually dated with the release of a new evaluation. This is particularly true for the decay data files utilizing fission yield and delayed neutron data. The introduction of ANSI/ANS standards for data of this type would provide a mechanism for assuring the reliability and quality of data of this type. Working groups for each of these proposed standards are comprised of both US and international experts in areas of reactor physics utilizing these data, as well as the data evaluators themselves. This summary briefly discusses the status of the two data evaluations and the progress toward developing standards in each area.

  13. Recent advances in US fission yield and delayed-neutron evaluations

    SciTech Connect (OSTI)

    England, T.R. (Los Alamos National Lab., NM (United States)); Brady, (Sandia National Labs., Albuquerque, NM (United States)); Rider, B.F.

    1992-01-01T23:59:59.000Z

    Over the past 15 yr, US reactor analysts have been presented with three major evaluated nuclear data bases: Evaluated Nuclear Data Files (ENDF/B) versions -IV, -V, and most recently, -VI. Advances in the quantity and quality of fission yield data have been almost exponential from evaluation to evaluation. The most recent release of ENDF/B-VI represents an entirely new approach to the evaluation of delayed-neutron data. Due to the effort and expense of processing and testing the basic data evaluations for specific applications, data libraries contained in the mainstream reactor physics codes are not usually dated with the release of a new evaluation. This is particularly true for the decay data files utilizing fission yield and delayed-neutron data. The introduction of American National Standards Institute/American Nuclear Society (ANSI/ANS) standards for data of this type would provide a mechanism for assuring their reliability and quality. Working groups for each of these proposed standards are composed of both US and international experts in areas of reactor physics utilizing these data, as well as the data evaluators themselves. This paper briefly discusses the status of the two data evaluations and the progress toward developing standards in each area.

  14. Analytical estimation of neutron yield in a micro gas-puff X pinch

    SciTech Connect (OSTI)

    Derzon, M. S.; Galambos, P. C. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Hagen, E. C. [NSTec, North Las Vegas, Nevada 89031 (United States)

    2012-12-01T23:59:59.000Z

    In this paper, we present the basic concepts for developing a micro x pinch as a small-scale neutron source. For compact sources, these concepts offer repetitive function at higher yields and pulsing rates than competing methods. The uniqueness of these concepts arises from the use of microelectronic technology to reduce the size of the target plasma and to efficiently heat the target gas. The use of repetitive microelectromechanical systems (MEMs) gas puff technology, as compared to cryogenic wires or solid targets (for the beam-target alternatives), has the potential to be robust and have a long lifetime because the plasma is not created from solid surfaces. The modeling suggests that a 50 J at the wall plug pulse could provide >10{sup 5} tritium (DT) neutrons and 10{sup 3} deuterium (DD) neutrons at temperatures of a few keV. At 1 kHz, this would be >10{sup 8} and 10{sup 6} neutrons per second, DT and DD, respectively, with a 250 {mu}m anode-cathode gap. DT gas puff devices may provide >10{sup 12} neutrons/s operating at 1 kHz and requiring 100 kW. The MEMs approach offers potentially high pulse rates and yields.

  15. 2{sub 1}{sup +}{yields}0{sub 1}{sup +} transition strengths in Sn nuclei

    SciTech Connect (OSTI)

    Orce, J. N.; Choudry, S. N.; Crider, B.; Elhami, E.; Mukhopadhyay, S.; Scheck, M.; McEllistrem, M. T. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Yates, S. W. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)

    2007-08-15T23:59:59.000Z

    The lifetime of the 2{sub 1}{sup +} state at 1256.7 keV in {sup 112}Sn has been determined using the (n,n{sup '}{gamma}) reaction. Angular distribution measurements were carried out at a neutron energy of 1.7 MeV, above the 2{sub 1}{sup +} energy threshold and below that of the second excited level. Through the Doppler-shift attenuation method, the lifetime of the 2{sub 1}{sup +} state is determined as 750{sub -90}{sup +125} fs, which gives a B(E2;2{sub 1}{sup +}{yields}0{sub 1}{sup +}) value of 10.9{sub -1.6}{sup +1.5} W.u. This E2 strength in {sup 112}Sn also allows a redetermination of the B(E2;2{sub 1}{sup +}{yields}0{sub 1}{sup +}) in {sup 108}Sn as 10.8(3.0) W.u. These values result in a symmetric trend around the neutron midshell in the systematics of E2 strengths in the even-mass tin isotopes and do not support N=64 or N=66 subshell gaps. The symmetric trend is in agreement with recent shell model predictions, where proton-core excitations were allowed in the calculations.

  16. MPQC: Performance Analysis and Optimization

    SciTech Connect (OSTI)

    Sarje, Abhinav; Williams, Samuel; Bailey, David

    2012-11-30T23:59:59.000Z

    MPQC (Massively Parallel Quantum Chemistry) is a widely used computational quantum chemistry code. It is capable of performing a number of computations commonly occurring in quantum chemistry. In order to achieve better performance of MPQC, in this report we present a detailed performance analysis of this code. We then perform loop and memory access optimizations, and measure performance improvements by comparing the performance of the optimized code with that of the original MPQC code. We observe that the optimized MPQC code achieves a significant improvement in the performance through a better utilization of vector processing and memory hierarchies.

  17. Xradia Performance Summary - Update

    SciTech Connect (OSTI)

    Waters, A M; Martz, H E; Chinn, D J; Logan, C M; Gross, J C; Scott, D

    2004-05-24T23:59:59.000Z

    High Energy Density Physics (HEDP) Experiments play an important role in corroborating the improved physics codes that underlie LLNL's Stockpile Stewardship mission. Conducting these experiments, whether on the National Ignition Facility (NIF) or another national facility such as Omega, will require not only improvement in the diagnostics for measuring the experiment, but also detailed knowledge of the as-built target components and assemblies themselves. To assist in this effort, a defined set of well-known reference standards designed to represent a range of HEDP targets have been built and are being used to quantify the performance of different characterization techniques. Without the critical step of using reference standards for qualifying characterization tools there can be no verification of either commercial or internallydeveloped characterization techniques and thus an uncertainty in the as-built-model for the initial condition to the physics codes.

  18. High Performance Quantum Computing

    E-Print Network [OSTI]

    Simon J. Devitt; William J. Munro; Kae Nemoto

    2008-10-14T23:59:59.000Z

    The architecture scalability afforded by recent proposals of a large scale photonic based quantum computer, utilizing the theoretical developments of topological cluster states and the photonic chip, allows us to move on to a discussion of massively scaled Quantum Information Processing (QIP). In this letter we introduce the model for a secure and unsecured topological cluster mainframe. We consider the quantum analogue of High Performance Computing, where a dedicated server farm is utilized by many users to run algorithms and share quantum data. The scaling structure of photonics based topological cluster computing leads to an attractive future for server based QIP, where dedicated mainframes can be constructed and/or expanded to serve an increasingly hungry user base with the ideal resource for individual quantum information processing.

  19. Yields of ten and eleven year-old hybrid poplars in the north central United States. Final report

    SciTech Connect (OSTI)

    Netzer, D.; Tolsted, D.

    1998-12-31T23:59:59.000Z

    The objective of this research is to determine commercially attainable biomass yields given the best site tending possible under the constraints of this extensive network. Biomass yields are reported from the best clones planted in one acre blocks on 8 sites over the four states. Biomass yields are presented of short rotation intensively cultured poplar plantations established in Wisconsin, Minnesota, North and South Dakota during 1987--88. It was reported at that time that the mean annual increment had not peaked in the plantations. Growth measurements were continued through the 1997 growing season when the plantations had completed their 10th and 11th growing season.

  20. Search for B{sup +}{yields}J/{psi}{eta}{sup '}K{sup +} and B{sup 0}{yields}J/{psi}{eta}{sup '}K{sub S}{sup 0} decays

    SciTech Connect (OSTI)

    Xie, Q. L.; Zhang, C. C. [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China); Abe, K.; Adachi, I.; Gershon, T.; Haba, J.; Hazumi, M.; Itoh, R.; Iwasaki, Y.; Katayama, N.; Kichimi, H.; Krokovny, P.; Nakao, M.; Nishida, S.; Ozaki, H.; Sakai, Y.; Sumisawa, K.; Suzuki, S. Y.; Takasaki, F.; Tamai, K. [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (and others)

    2007-01-01T23:59:59.000Z

    We report the results of searches for B{sup +}{yields}J/{psi}{eta}{sup '}K{sup +} and B{sup 0}{yields}J/{psi}{eta}{sup '}K{sub S}{sup 0} decays, using a sample of 388x10{sup 6} BB pairs collected with the Belle detector at the {upsilon}(4S) resonance. No statistically significant signal is found for either of the two decay modes and upper limits for the branching fractions are determined to be B(B{sup +}{yields}J/{psi}{eta}{sup '}K{sup +})<8.8x10{sup -5} and B(B{sup 0}{yields}J/{psi}{eta}{sup '}K{sub S}{sup 0})<2.5x10{sup -5} at 90% confidence level.

  1. US airline industry trends and performance 1999-2004 : analysis of Form 41 data

    E-Print Network [OSTI]

    Strina François

    2006-01-01T23:59:59.000Z

    Since 2001, the US airline industry has faced an unprecedented set of challenges. Following the terrorist attacks of September 11, 2001, the airline industry reported tremendous losses and several of the largest US airlines ...

  2. Economic performance of modularized hot-aisle contained datacenter PODs utilizing horizontal airflow cooling

    E-Print Network [OSTI]

    Rabassa, Albert O., III (Albert Oscar)

    2014-01-01T23:59:59.000Z

    Evolutionary and revolutionary advances in computational and storage systems have driven electronic circuit densities to unprecedented levels. These high-density systems must be adequately cooled for proper operation and ...

  3. Search for the rare decays B{sup +}{yields}{mu}{sup +}{mu}{sup -}K{sup +}, B{sup 0}{yields}{mu}{sup +}{mu}{sup -}K*(892){sup 0}, and B{sub s}{sup 0}{yields}{mu}{sup +}{mu}{sup -}{phi} at CDF

    SciTech Connect (OSTI)

    Aaltonen, T.; Maki, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; Remortel, N. van [Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland); Adelman, J.; Brubaker, E.; Fedorko, W. T.; Grosso-Pilcher, C.; Kim, Y. K.; Kwang, S.; Levy, S.; Paramonov, A. A.; Schmidt, M. A.; Shiraishi, S.; Shochet, M.; Wolfe, C.; Yang, U. K. [Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)] (and others)

    2009-01-01T23:59:59.000Z

    We search for b{yields}s{mu}{sup +}{mu}{sup -} transitions in B meson (B{sup +}, B{sup 0}, or B{sub s}{sup 0}) decays with 924 pb{sup -1} of pp collisions at {radical}(s)=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We find excesses with significances of 4.5, 2.9, and 2.4 standard deviations in the B{sup +}{yields}{mu}{sup +}{mu}{sup -}K{sup +}, B{sup 0}{yields}{mu}{sup +}{mu}{sup -}K*(892){sup 0}, and B{sub s}{sup 0}{yields}{mu}{sup +}{mu}{sup -}{phi} decay modes, respectively. Using B{yields}J/{psi}h (h=K{sup +}, K*(892){sup 0}, {phi}) decays as normalization channels, we report branching fractions for the previously observed B{sup +} and B{sup 0} decays, B(B{sup +}{yields}{mu}{sup +}{mu}{sup -}K{sup +})=(0.59{+-}0.15{+-}0.04)x10{sup -6}, and B(B{sup 0}{yields}{mu}{sup +}{mu}{sup -}K*(892){sup 0})=(0.81{+-}0.30{+-}0.10)x10{sup -6}, where the first uncertainty is statistical, and the second is systematic. We set an upper limit on the relative branching fraction B(B{sub s}{sup 0}{yields}{mu}{sup +}{mu}{sup -}{phi})/B(B{sub s}{sup 0}{yields}J/{psi}{phi})<2.6(2.3)x10{sup -3} at the 95(90)% confidence level, which is the most stringent to date.

  4. Passive solar systems performance under conditions in Bulgaria

    SciTech Connect (OSTI)

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

    1989-12-01T23:59:59.000Z

    This paper presents energy performance of 12 passive solar systems for three climatically different zones of Bulgaria. The results are compared with a base-case residential house that has a design typical for these areas. The different passive solar systems are compared on the basis of the percentage of solar savings and the yield, which is the annual net benefit of adding the passive solar system. The analyses are provided based on monthly meteorological data, and the method used for calculations is the Solar Load Ratio. Recommendations for Bulgarian conditions are given. 5 refs., 4 figs., 1 tab.

  5. Measuring the absolute deuterium-tritium neutron yield using the magnetic recoil spectrometer at OMEGA and the NIF

    SciTech Connect (OSTI)

    Casey, D. T.; Frenje, J. A.; Gatu Johnson, M.; Seguin, F. H.; Li, C. K.; Petrasso, R. D. [Plasma Science and Fusion Center, MIT, Cambridge, Massachusetts 02139 (United States); Glebov, V. Yu.; Katz, J.; Knauer, J. P.; Meyerhofer, D. D.; Sangster, T. C. [Laboratory for Laser Energetics, UR, Rochester, New York 14623 (United States); Bionta, R. M.; Bleuel, D. L.; Doeppner, T.; Glenzer, S.; Hartouni, E.; Hatchett, S. P.; Le Pape, S.; Ma, T.; MacKinnon, A. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); and others

    2012-10-15T23:59:59.000Z

    A magnetic recoil spectrometer (MRS) has been installed and extensively used on OMEGA and the National Ignition Facility (NIF) for measurements of the absolute neutron spectrum from inertial confinement fusion implosions. From the neutron spectrum measured with the MRS, many critical implosion parameters are determined including the primary DT neutron yield, the ion temperature, and the down-scattered neutron yield. As the MRS detection efficiency is determined from first principles, the absolute DT neutron yield is obtained without cross-calibration to other techniques. The MRS primary DT neutron measurements at OMEGA and the NIF are shown to be in excellent agreement with previously established yield diagnostics on OMEGA, and with the newly commissioned nuclear activation diagnostics on the NIF.

  6. Increasing influence of heat stress on French maize yields from the 1960s to the 2030s

    E-Print Network [OSTI]

    Hawkins, Ed

    Increasing influence of heat stress on French maize yields from the 1960s to the 2030s Ed Hawkins1 for each day with a maximum temperature above 32 C, in broad agreement with previous estimates. The recent

  7. Subcritical compaction and yielding of granular quartz sand Stephen L. Karner*, Frederick M. Chester, Andreas K. Kronenberg, Judith S. Chester

    E-Print Network [OSTI]

    Chester, Frederick M.

    Subcritical compaction and yielding of granular quartz sand Stephen L. Karner*, Frederick M October 2003 Abstract Cylindrical samples of water-saturated, initially loose, St. Peter quartz sand were

  8. High Performance Network Monitoring

    SciTech Connect (OSTI)

    Martinez, Jesse E [Los Alamos National Laboratory

    2012-08-10T23:59:59.000Z

    Network Monitoring requires a substantial use of data and error analysis to overcome issues with clusters. Zenoss and Splunk help to monitor system log messages that are reporting issues about the clusters to monitoring services. Infiniband infrastructure on a number of clusters upgraded to ibmon2. ibmon2 requires different filters to report errors to system administrators. Focus for this summer is to: (1) Implement ibmon2 filters on monitoring boxes to report system errors to system administrators using Zenoss and Splunk; (2) Modify and improve scripts for monitoring and administrative usage; (3) Learn more about networks including services and maintenance for high performance computing systems; and (4) Gain a life experience working with professionals under real world situations. Filters were created to account for clusters running ibmon2 v1.0.0-1 10 Filters currently implemented for ibmon2 using Python. Filters look for threshold of port counters. Over certain counts, filters report errors to on-call system administrators and modifies grid to show local host with issue.

  9. The Effect of Time and Rate of Application of Nitrate of Soda on the Yield of Cotton.

    E-Print Network [OSTI]

    Reynolds, E. B. (Elbert Brunner); Langley, B. C. (Bryon Caldwell); Johnson, P. R. (Paul Rufus)

    1934-01-01T23:59:59.000Z

    TEXAS AGRICULTURAL EXPERIHENT STATIDJ A. R. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY. TEXAS BULLETIN NO. 490 MARCH, 1934 .--' --7 , The Effect of Time and Rate of Application of Nitrate of Soda on the Yield of Cotton - AGRICULTURAL... of nitrate of soda on yield, length and percentage of lint, size of boll, shedding, and other characters of the cotton plant on the sandy soils of eastern Texas, as a basis for developing a more intelligent and profitable fertilizer practice for cotton...

  10. A model for determining shelf life, estimating terminal body composition, yield grade and quality grade of feedlot cattle

    E-Print Network [OSTI]

    Perry, Richard Jay

    1985-01-01T23:59:59.000Z

    as to style and content by: F. M. Byers (Chairman of Co m ttee) James McGrann (Member) ~&~& G. T. Schelling (Member) December 1986 ABSRACT A Model for Determining Shelf Life, Estimating Terminal Body Composition, Yield Grade and Quality Grade... of Feedlot Cattle. (December 1985) Richard Jay Perry, B, S. , Texas AlkM University Chairman of Advisory Committee: Dr. F, M. Byers A model for determining shelf life and estimating carcass fat (kg), yield grade and quality grade was developed. Shelf...

  11. Role of yield grade and carcass weight on the cutability of lamb carcasses at multiple trim levels and fabrication styles

    E-Print Network [OSTI]

    Garrett, Randal Pal

    1988-01-01T23:59:59.000Z

    ROLE OF YIELD GRADE AND CARCASS WEIGHT ON THE CUTABILITY OF LAMB CARCASSES AT MULTIPLE TRIM LEVELS AND FABRICATION STYLES A Thesis by RANDAL PAL GARRETT Submitted to the Office of Graduate Studies of Texas ARM University in partial... PAL GARRETT Approved as to syle and content by: . R. Cross (Co-Chairman of Committee) effrey W. Savell (Co-Chairman of Committee) John D. Williams (Member) G. C. Smith (Head of Department) December 1988 Role of Yield Grade and Carcass Weight...

  12. Influence of cultural practices on yield, quality and disease control of 'Chenin Blanc' grapes in Southeast Texas

    E-Print Network [OSTI]

    Wilson, Iva Suzanne

    1989-01-01T23:59:59.000Z

    INFLUENCE OF CULTURAL PRACTICES ON YIELD, QUALITY AND DISEASE CONTROL OF 'CHENIN BLANC' GRAPES IN SOUTHEAST TEXAS A Thesis by IVA SUZANNE WILSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... on Yield, Quality and Disease Control of 'Chenin Blanc' Grapes in Southeast Texas. (December 1989) Iva Suzanne Wilson, B. S. , Southwest Texas State University Co-Chair of Advisory Committee: J. Dan Hanna George Ray McEachern Canopy management...

  13. The effects of severity of pruning on tree growth, fruit size and yield of the Bruce plum

    E-Print Network [OSTI]

    Hancock, Bluefford Gordon

    1957-01-01T23:59:59.000Z

    of the Reqnirenenta for the Degree of NtSTER OF SCIENCE Luguat 1957 Na)or Sub]ect & Horticulture THE EFFECTS OF SEVERITY GF PRUNING ON TREE GRONTH~ FRUIT SIZE AND YIEIXI OF THE BRUCE PION A Thesis Bluefford Cordon Hancock APPrceed as to style and content bye... ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ e ~ ~ ~ ~ Q BibliegraphF ~ ~ ~ ~ ~ ~ i ~ ~ ~ ~ ~ i ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 4$ UST GF TABIXS Analysis of Variance of Total Fruit Yield for 1956 for Three Pruning Treatments. . . . , ~ ~ ~ ~ 20 Analysis of Varianoe of Total Fruit Yield...

  14. The effective beta sensitivity to the incident neutron energy dependence of the absolute delayed neutron yields

    SciTech Connect (OSTI)

    D'Angelo, A. (ENEA, Casaccia (Italy)); Filip, A. (Centre d'Etudes Nucleaires de Cadarache, Saint Paul lez Durance (France). Commissariat a l'Energie Atomique)

    1993-08-01T23:59:59.000Z

    The uncertainty of the [sup 235]U, [sup 239]Pu, and [sup 238]U absolute delayed neutron yields v[sub d] is one of the principal sources of uncertainty in predicting the fission reactor reactivity scale [beta][sub eff]. The current uncertainties in the dependence of v[sub d] on incident neutron energy is investigated for significance in the evaluation of [beta][sub eff]. The uncertainty effects on the GODIVA, JEZEBEL, Zero Power Reactor, SNEAK, and Masurca benchmark facility calculations are analyzed using ENDF/B and JEF basic data. Different assumptions about the energy dependence result in variations of up to 5% in the reactor spectrum averaged values of v[sub d], and these would result in variations of up to [approximately] 2% in the value of [beta][sub eff] for a typical liquid-metal fast breeder reactor.

  15. The influence of net-quarks on the yields and rapidity spectra of identified hadrons

    E-Print Network [OSTI]

    Jun Song; Feng-lan Shao; Qu-bing Xie; Yun-fei Wang; De-ming Wei

    2008-02-21T23:59:59.000Z

    Within a quark combination model, we study systematically the yields and rapidity spectra of various hadrons in central Au+Au collisions at $\\sqrt{s_{NN}}= 200$ GeV. We find that considering the difference in rapidity between net-quarks and newborn quarks, the data of multiplicities, rapidity distributions for $\\pi^{\\pm}$, $K^{\\pm}$, $p(\\bar{p})$ and, in particular the ratios of charged antihadron to hadron as a function of rapidity, can be well described. The effect of net-quarks on various hadrons is analysed, and the rapidity distributions for $K^{0}_{s}$, $\\Lambda(\\bar{\\Lambda})$, $\\Sigma^{+}(\\bar{\\Sigma}^{_-})$, $\\mathrm{\\Xi^{-}}$ ($\\mathrm{\\bar{\\Xi}^{_+}}$) and $\\mathrm{\\Omega^{-}}(\\mathrm{\\bar{\\Omega}}^{_+})$ are predicted. We discuss the rapidity distribution of net-baryon, and find that it reflects exactly the energy loss of colliding nuclei.

  16. Optimal stopping of expected profit and cost yields in an investment under uncertainty

    E-Print Network [OSTI]

    Djehiche, Boualem; Morlais, Marie Amélie

    2010-01-01T23:59:59.000Z

    We consider a finite horizon optimal stopping problem related to trade-off strategies between expected profit and cost cash-flows of an investment under uncertainty. The optimal problem is first formulated in terms of a system of Snell envelopes for the profit and cost yields which act as obstacles to each other. We then construct both a minimal and a maximal solutions using an approximation scheme of the associated system of reflected backward SDEs. When the dependence of the cash-flows on the sources of uncertainty, such as fluctuation market prices, assumed to evolve according to a diffusion process, is made explicit, we also obtain a connection between these solutions and viscosity solutions of a system of variational inequalities (VI) with interconnected obstacles. We also provide two counter-examples showing that uniqueness of solutions of (VI) does not hold in general.

  17. Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals

    DOE Patents [OSTI]

    Schreuder, Michael A.; McBride, James R.; Rosenthal, Sandra J.

    2014-07-22T23:59:59.000Z

    Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

  18. First measurement of the ionization yield of nuclear recoils in liquid argon

    SciTech Connect (OSTI)

    Joshi, T. [Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Sangiorgio, Samuele [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Bernstein, A. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Foxe, Michael P. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Pennsylvania State Univ., University Park, PA (United States). Dept. of Mechanical and Nuclear Engineering; Hagmann, Chris [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Jovanovic, Igor [Pennsylvania State Univ., University Park, PA (United States). Dept. of Mechanical and Nuclear Engineering; Kazkaz, K. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Mozin, Vladimir V. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Norman, E. B. [Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Pereverzev, S. V. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Rebassoo, Finn O. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Sorensen, Peter F. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

    2014-05-01T23:59:59.000Z

    Liquid phase argon has long been used as a target medium for particle detection via scintillation light. Recently there has been considerable interest in direct detection of both hypothetical darkmatter particles and coherent elastic neutrino nucleus scattering. These as-yet unobserved neutral particle interactions are expected to result in a recoiling argon atom O(keV), generally referred to in the literature as a nuclear recoil. This prompts the question of the available electromagnetic signal in a liquid argon detector. In this Letter we report the first measurement of the ionization yield (Qy), detected electrons per unit energy, resulting from nuclear recoils in liquid argon, measured at 6.7 keV. This is also the lowest energy measurement of nuclear recoils in liquid argon.

  19. Safe handling of potential peroxide forming compounds and their corresponding peroxide yielded derivatives.

    SciTech Connect (OSTI)

    Sears, Jeremiah Matthew; Boyle, Timothy J.; Dean, Christopher J.

    2013-06-01T23:59:59.000Z

    This report addresses recent developments concerning the identification and handling of potential peroxide forming (PPF) and peroxide yielded derivative (PYD) chemicals. PPF chemicals are described in terms of labeling, shelf lives, and safe handling requirements as required at SNL. The general peroxide chemistry concerning formation, prevention, and identification is cursorily presented to give some perspective to the generation of peroxides. The procedure for determining peroxide concentrations and the proper disposal methods established by the Hazardous Waste Handling Facility are also provided. Techniques such as neutralization and dilution are provided for the safe handling of any PYD chemicals to allow for safe handling. The appendices are a collection of all available SNL documentation pertaining to PPF/PYD chemicals to serve as a single reference.

  20. Extraction of {gamma} from charmless hadronic B {yields} PP decays using SU(3) flavor symmetry

    SciTech Connect (OSTI)

    Suprun, Denis A. [High Energy Theory Group, Brookhaven National Laboratory, Upton, NY 11973 (United States)

    2006-07-11T23:59:59.000Z

    The decays of B mesons to a pair of charmless pseudoscalar mesons (PP decays) have been analyzed within the framework of flavor SU(3) symmetry and quark-diagrammatic topological approach. Flavor symmetry breaking is taken into account in tree (T) amplitudes through ratios of decay constants fK and f{pi}; exact SU(3) is assumed elsewhere. Acceptable fits to B {yields} PP branching ratios and CP asymmetries are obtained with tree, color-suppressed and QCD penguin amplitudes. Singlet penguin amplitude was introduced to describe decay amplitudes of the modes with {eta} and {eta}' mesons in the final state. Electroweak penguin amplitudes were expressed in terms of the corresponding tree-level diagrams. Values of the weak phase {gamma} were found to be consistent with the current indirect bounds from other analyses of CKM parameters.

  1. Light yield of Kuraray SCSF-78MJ scintillating fibers for the Gluex barrel calorimeter

    SciTech Connect (OSTI)

    Beattie, T.D.; Fischer, A.P.; Krueger, S.T.; Lolos, G.J.; Papandreou, Z.; Plummer, E.L.; Semenov, A.Yu.; Semenova, I.A.; Sichello, L.M.; Teigro, L.A.; Smith, E S [JLAB

    2014-09-01T23:59:59.000Z

    Over three quarters of a million 1-mm-diameter 4-m-long Kuraray double-clad SCSF-78MJ (blue-green) scintillating fibers have been used in the construction of the GlueX electromagnetic barrel calorimeter for the Hall D experimental program at Jefferson Lab. The quality of a random sample of 4,750 of these fibers was evaluated by exciting the fibers at their mid point using a 90Sr source in order to determine the light yield using a calibrated vacuum photomultiplier as the photosensor. A novel methodology was developed to extract the number of photoelectrons detected for measurements where individual photoelectron peaks are not discernible. The average number of photoelectrons from this sample of fibers was 9.17±0.6 at a source distance of 200 cm from the PMT.

  2. A high liquid yield process for retorting various organic materials including oil shale

    DOE Patents [OSTI]

    Coburn, T.T.

    1988-07-26T23:59:59.000Z

    This invention is a continuous retorting process for various high molecular weight organic materials, including oil shale, that yields an enhanced output of liquid product. The organic material, mineral matter, and an acidic catalyst, that appreciably adsorbs alkenes on surface sites at prescribed temperatures, are mixed and introduced into a pyrolyzer. A circulating stream of olefin enriched pyrolysis gas is continuously swept through the organic material and catalyst, whereupon, as the result of pyrolysis, the enhanced liquid product output is provided. Mixed spent organic material, mineral matter, and cool catalyst are continuously withdrawn from the pyrolyzer. Combustion of the spent organic material and mineral matter serves to reheat the catalyst. Olefin depleted pyrolysis gas, from the pyrolyzer, is enriched in olefins and recycled into the pyrolyzer. The reheated acidic catalyst is separated from the mineral matter and again mixed with fresh organic material, to maintain the continuously cyclic process. 2 figs.

  3. High liquid yield process for retorting various organic materials including oil shale

    DOE Patents [OSTI]

    Coburn, Thomas T. (Livermore, CA)

    1990-01-01T23:59:59.000Z

    This invention is a continuous retorting process for various high molecular weight organic materials, including oil shale, that yields an enhanced output of liquid product. The organic material, mineral matter, and an acidic catalyst, that appreciably adsorbs alkenes on surface sites at prescribed temperatures, are mixed and introduced into a pyrolyzer. A circulating stream of olefin enriched pyrolysis gas is continuously swept through the organic material and catalyst, whereupon, as the result of pyrolysis, the enhanced liquid product output is provided. Mixed spent organic material, mineral matter, and cool catalyst are continuously withdrawn from the pyrolyzer. Combustion of the spent organic material and mineral matter serves to reheat the catalyst. Olefin depleted pyrolysis gas, from the pyrolyzer, is enriched in olefins and recycled into the pyrolyzer. The reheated acidic catalyst is separated from the mineral matter and again mixed with fresh organic material, to maintain the continuously cyclic process.

  4. Methodology for the use of proportional counters in pulsed fast neutron yield measurements

    E-Print Network [OSTI]

    Tarifeño-Saldivia, Ariel; Pavez, Cristian; Soto, Leopoldo

    2011-01-01T23:59:59.000Z

    This paper introduces in full detail a methodology for the measurement of neutron yield and the necessary efficiency calibration, to be applied to the intensity measurement of neutron bursts where individual neutrons are not resolved in time, for any given moderated neutron proportional counter array. The method allows efficiency calibration employing the detection neutrons arising from an isotopic neutron source. Full statistical study of the procedure is descripted, taking into account contributions arising from counting statistics, piling-up statistics of real detector pulse-height spectra and background fluctuations. The useful information is extracted from the net waveform area of the signal arising from the electric charge accumulated inside the detector tube. Improvement of detection limit is gained, therefore this detection system can be used in detection of low emission neutron pulsed sources with pulses of duration from nanoseconds to up. The application of the methodology to detection systems to be...

  5. Investigation of a Novel Solar Assisted Water Heating System with Enhanced Energy Yield for Buildings

    E-Print Network [OSTI]

    Zhang, X.; Zhao, X.; Xu, J.; Yu, X.

    2012-01-01T23:59:59.000Z

    This paper presented the concept, prototype application, operational performance and benefits relating to a novel solar assisted water heating system for building services. It was undertaken through dedicated theoretical analysis, computer...

  6. Environmental Public Health Performance Standards

    E-Print Network [OSTI]

    Environmental Public Health Performance Standards Environmental Health Program Self Agency: Total Environmental Health Program Budget: #12;Environmental Public Health Performance Standards (v. 2.0); Environmental Health Program Assessment Instrument, 1/7/2010 Page 2 Proportion

  7. Energy Savings Performance Contracting Webinars

    Broader source: Energy.gov [DOE]

    Provides a listing of past Energy Savings Performance Contracting webinars and associated files. Author: U. S Department of Energy

  8. Performance Metrics for Commercial Buildings

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Wang, Na; Romero, Rachel L.; Deru, Michael P.

    2010-09-30T23:59:59.000Z

    Commercial building owners and operators have requested a standard set of key performance metrics to provide a systematic way to evaluate the performance of their buildings. The performance metrics included in this document provide standard metrics for the energy, water, operations and maintenance, indoor environmental quality, purchasing, waste and recycling and transportation impact of their building. The metrics can be used for comparative performance analysis between existing buildings and industry standards to clarify the impact of sustainably designed and operated buildings.

  9. PERFORMANCE ASSESSMENT OF PID CONTROLLERS

    E-Print Network [OSTI]

    Marquez, Horacio J.

    PERFORMANCE ASSESSMENT OF PID CONTROLLERS W. Tan, H. J. Marquez, and T. Chen§ Abstract: Criteria based on disturbance rejection and system robustness are proposed to assess the performance of PID-loop or multi-loop. Key Words: PID Control; Tuning; Performance; Robustness; Structured Singular Value. 1

  10. Environmental Public Health Performance Standards

    E-Print Network [OSTI]

    Environmental Public Health Performance Standards (Version 2.0) Updated May 2014 National Center for Environmental Health Division of Emergency and Environmental Health Services #12;#12;Environmental Public Health Performance Standards (Version 2.0) Updated May 2014 #12;Environmental Public Health Performance Standards

  11. High Performance Computing contributions to

    E-Print Network [OSTI]

    High Performance Computing contributions to DoD Mission Success 2002 #12;Approved for public/C nanotube in a field emitter configuration #12;HIGH PERFORMANCE COMPUTING contributions tocontributions ­ SECTION 1 INTRODUCTION 1 Introduction 3 Overview of the High Performance Computing Modernization Program 3

  12. Technology Performance Exchange (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01T23:59:59.000Z

    This fact sheet, 'The Technology Performance Exchange' will be presented at the ET Summit, held at the Pasadena Convention Center on October 15-17, 2012. The Technology Performance Exchange will be a centralized, Web-based portal for finding and sharing energy performance data for commercial building technologies.

  13. BUILDING PERFORMANCE ENGINEERING DURING CONSTRUCTION

    E-Print Network [OSTI]

    Toole, T. Michael

    1 BUILDING PERFORMANCE ENGINEERING DURING CONSTRUCTION T. Michael Toole1 and Matthew Hallowell2 of building performance engineering tasks on design-bid-build projects are typically provided by entities building construction projects. Twenty four building performance engineering tasks were required

  14. Environmental Compliance Performance | Department of Energy

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

    Compliance Environmental Compliance Performance Environmental Compliance Performance Most Office of Environmental Management (EM) cleanup is being performed under the...

  15. 2012 DOE Strategic Sustainability Performance Plan | Department...

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

    DOE Strategic Sustainability Performance Plan 2012 DOE Strategic Sustainability Performance Plan The 2012 DOE Strategic Sustainability Performance Plan embodies DOE's...

  16. TAP 2, Performance-Based Training Manual

    SciTech Connect (OSTI)

    Not Available

    1991-07-01T23:59:59.000Z

    Training programs at DOE nuclear facilities should provide well- trained, qualified personnel to safely and efficiently operate the facilities in accordance with DOE requirements. A need has been identified for guidance regarding analysis, design, development, implementation, and evaluation of consistent and reliable performance-based training programs. Accreditation of training programs at Category A reactors and high-hazard and selected moderate-hazard nonreactor facilities will assure consistent, appropriate, and cost-effective training of personnel responsible for the operation, maintenance, and technical support of these facilities. Training programs that are designed and based on systematically job requirements, instead of subjective estimation of trainee needs, yield training activities that are consistent and develop or improve knowledge, skills, and abilities that can be directly related to the work setting. Because the training is job-related, the content of these programs more efficiently and effectively meets the needs of the employee. Besides a better trained work force, a greater level of operational reactor safety can be realized. This manual is intended to provide an overview of the accreditation process and a brief description of the elements necessary to construct and maintain training programs that are based on the requirements of the job. Two comparison manuals provide additional information to assist contractors in their efforts to accredit training programs.

  17. Machine characterization and benchmark performance prediction

    SciTech Connect (OSTI)

    Saavedra-Barrera, R.H.

    1988-12-01T23:59:59.000Z

    From runs of standard benchmarks or benchmark suites, it is not possible to characterize the machine nor to predict the run time of other benchmarks which have not been run. A new approach to benchmarking and machine characterization is reported. The creation and use of a machine analyzer is described, which measures the performance of a given machine on FORTRAN source language constructs. The machine analyzer yields a set of parameters which characterize the machine and spotlight its strong and weak points. Also described is a program analyzer, which analyzes FORTRAN programs and determines the frequency of execution of each of the same set of source language operations. It is then shown that by combining a machine characterization and a program characterization, we are able to predict with good accuracy the run time of a given benchmark on a given machine. Characterizations are provided for the Cray-X-MP/48, Cyber 205, IBM 3090/200, Amdahl 5840, Convex C-1, VAX 8600, VAX 11/785, VAX 11/780, SUN 3/50, and IBM RT-PC/125, and for the following benchmark programs or suites: Los Alamos (BMK8A1), Baskett, Linpack, Livermore Loops, Madelbrot Set, NAS Kernels, Shell Sort, Smith, Whetstone and Sieve of Erathostenes.

  18. Lattice-Mismatched Approaches for High-Performance, III-V Photovoltaic Energy Converters

    SciTech Connect (OSTI)

    Wanlass, M. W.; Ahrenkiel, S. P.; Ahrenkiel, R. K.; Albin, D. S.; Carapella, J. J.; Duda, A.; Geisz, J. F.; Kurtz, S.; Moriarty, T.; Wehrer, R. J.; Wernsman, B.

    2005-02-01T23:59:59.000Z

    We discuss lattice-mismatched (LMM) approaches using compositionally step-graded layers and buffer layers that yield III-V photovoltaic devices with performance parameters equaling those of similar lattice-matched (LM) devices. Our progress in developing high-performance, LMM, InP-based GaInAs/InAsP materials and devices for thermophotovoltaic (TPV) energy conversion is highlighted. A novel, monolithic, multi-bandgap, tandem device for solar PV (SPV) conversion involving LMM materials is also presented, along with promising preliminary performance results.

  19. Mechanistic studies of an unprecedented enzyme-catalysed 1,2-phosphono-migration reaction

    E-Print Network [OSTI]

    Chang, Wei-chen

    (S)-2-hydroxypropylphosphonate ((S)-2-HPP) epoxidase (HppE) is a mononuclear non-haem-iron-dependent enzyme1, 2, 3 responsible for the final step in the biosynthesis of the clinically useful antibiotic fosfomycin4. Enzymes ...

  20. Identification of Quaternary Shape Memory Alloys with Near-Zero Thermal Hysteresis and Unprecedented

    E-Print Network [OSTI]

    Rubloff, Gary W.

    Identification of Quaternary Shape Memory Alloys with Near-Zero Thermal Hysteresis-film results are successfully transferred to bulk materials and near-zero thermal hysteresis is observed for the phase transformation in bulk alloys using the temperature- dependent alternating current potential drop

  1. Arctic sea ice declined rapidly to unprec-edented low extents in the summer of 2007,

    E-Print Network [OSTI]

    Clements, Craig

    cooling, ice extent remains far below normal. Understanding Sea Ice Loss Key factors behind this recordArctic sea ice declined rapidly to unprec- edented low extents in the summer of 2007, raising concern that the Arctic may be on the verge of a fundamental transition toward a seasonal ice cover

  2. An unprecedented nucleic acid capture mechanism for excision of DNA damage

    SciTech Connect (OSTI)

    Rubinson, Emily H.; Prakasha Gowda, A.S.; Spratt, Thomas E.; Gold, Barry; Eichmanbrand, Brandt F. (Pitt); (Vanderbilt); (Penn)

    2010-11-18T23:59:59.000Z

    DNA glycosylases that remove alkylated and deaminated purine nucleobases are essential DNA repair enzymes that protect the genome, and at the same time confound cancer alkylation therapy, by excising cytotoxic N3-methyladenine bases formed by DNA-targeting anticancer compounds. The basis for glycosylase specificity towards N3- and N7-alkylpurines is believed to result from intrinsic instability of the modified bases and not from direct enzyme functional group chemistry. Here we present crystal structures of the recently discovered Bacillus cereus AlkD glycosylase in complex with DNAs containing alkylated, mismatched and abasic nucleotides. Unlike other glycosylases, AlkD captures the extrahelical lesion in a solvent-exposed orientation, providing an illustration for how hydrolysis of N3- and N7-alkylated bases may be facilitated by increased lifetime out of the DNA helix. The structures and supporting biochemical analysis of base flipping and catalysis reveal how the HEAT repeats of AlkD distort the DNA backbone to detect non-Watson-Crick base pairs without duplex intercalation.

  3. Studies on Oximidine II - Total Synthesis by an Unprecedented Reductive Coupling

    E-Print Network [OSTI]

    Schneider, Christopher Mark

    2009-10-20T23:59:59.000Z

    studies revealed 4 small molecules as potential leads for further optimization. Dioxins are environmental pollutants that cause a range of biological effects in a dose-dependent manner. The exact mechanism of action for dioxins is not fully understood. 2...

  4. Drought 2002 in Colorado: An Unprecedented Drought or a Routine Drought?

    E-Print Network [OSTI]

    NOLAN DOESKEN,1 ODILIA BLISS,1 TARA GREEN,1 CLARA CHAFFIN,1,2 JOSE D. SALAS,3 CONNIE A. WOODHOUSE,4, and related impacts. For example, 1 Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado State University, Fort Collins, CO 80523-1372, U.S.A. 4 Paleoclimatology Branch, National Climatic

  5. U.S. Virgin Islands Clears the Way for Unprecedented Levels of Solar Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from theDepartment of Dept. of Energy, Office ofNuclear WeaponstoU.S. Threatened by4:

  6. U.S. Virgin Islands Clears the Way for Unprecedented Levels of Solar Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeEnvironment,Institutes and1TeleworkAgriculture U.S. DepartmentofDepartment of|

  7. Space Chamber Reaches Cold Target at Unprecedented Efficiency | U.S. DOE

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 IndustrialIsadore Perlman,BiosScience (SC) RegionalRegionals »Office ofOffice

  8. B physics expected performances with the Compact Muon Solenoid detector

    SciTech Connect (OSTI)

    Charles, Francois [Groupe de Recherche en Physique des Hautes Energies, Universite de Haute Alsace, 61 rue A. Camus, 68093 Mulhouse (France)

    1998-10-19T23:59:59.000Z

    We present here the future performances of the Compact Muon Solenoid detector for B physics. We show that CMS will contribute significantly to the CP violation parameter sin 2{beta} measurement with a precision of {delta} sin 2{beta}{approx_equal}0.02 (1 year of integrated luminosity). The asymetry in the channel B{sub s}{sup 0}{yields}J/{psi}{phi} will be tested to the 2-5% level. The mixing parameter x{sub s} of B{sub s}{sup 0} oscillations will be measured up to 40. Finaly the rare B decay should be searched down to the SM expectation and in the case of the semileptonic rare decays will provide enough statistics to performed detailed studies.

  9. High Performance Fuel Desing for Next Generation Pressurized Water Reactors

    SciTech Connect (OSTI)

    Mujid S. Kazimi; Pavel Hejzlar

    2006-01-31T23:59:59.000Z

    The use of internally and externally cooled annular fule rods for high power density Pressurized Water Reactors is assessed. The assessment included steady state and transient thermal conditions, neutronic and fuel management requirements, mechanical vibration issues, fuel performance issues, fuel fabrication methods and econmic assessment. The investigation was donducted by a team from MIT, Westinghouse, Gamma Engineering, Framatome ANP, and AECL. The analyses led to the conclusion that raising the power density by 50% may be possible with this advanced fuel. Even at the 150% power level, the fuel temperature would be a few hundred degrees lower than the current fuel temperatre. Significant economic and safety advantages can be obtained by using this fuel in new reactors. Switching to this type of fuel for existing reactors would yield safety advantages, but the economic return is dependent on the duration of plant shutdown to accommodate higher power production. The main feasiblity issue for the high power performance appears to be the potential for uneven splitting of heat flux between the inner and outer fuel surfaces due to premature closure of the outer fuel-cladding gap. This could be overcome by using a very narrow gap for the inner fuel surface and/or the spraying of a crushable zirconium oxide film at the fuel pellet outer surface. An alternative fuel manufacturing approach using vobropacking was also investigated but appears to yield lower than desirable fuel density.

  10. Cotton Yield Mapping at AG-CARES, Lamesa, TX, 2003 John Everitt, Alan Brashears, Wayne Keeling, and Danny Carmichael, Research Associate,

    E-Print Network [OSTI]

    Mukhtar, Saqib

    TITLE: Cotton Yield Mapping at AG-CARES, Lamesa, TX, 2003 AUTHORS: John Everitt, Alan Brashears, and Research Associate RESULTS AND DISCUSSION: A John Deere 7445 cotton stripper equipped with a MICRO-TRAK ® yield monitor was used to harvest cotton at AG-CARES in 2003. The MICRO-TRAK ® yield monitor system used

  11. THE EFFECT OF THE PRE-DETONATION STELLAR INTERNAL VELOCITY PROFILE ON THE NUCLEOSYNTHETIC YIELDS IN TYPE Ia SUPERNOVA

    SciTech Connect (OSTI)

    Kim, Yeunjin; Jordan, G. C. IV; Graziani, Carlo; Lamb, D. Q.; Truran, J. W. [Astronomy Department, University of Chicago, Chicago, IL 60637 (United States); Meyer, B. S. [Physics and Astronomy Department, Clemson University, Clemson, SC 29634 (United States)

    2013-07-01T23:59:59.000Z

    A common model of the explosion mechanism of Type Ia supernovae is based on a delayed detonation of a white dwarf. A variety of models differ primarily in the method by which the deflagration leads to a detonation. A common feature of the models, however, is that all of them involve the propagation of the detonation through a white dwarf that is either expanding or contracting, where the stellar internal velocity profile depends on both time and space. In this work, we investigate the effects of the pre-detonation stellar internal velocity profile and the post-detonation velocity of expansion on the production of {alpha}-particle nuclei, including {sup 56}Ni, which are the primary nuclei produced by the detonation wave. We perform one-dimensional hydrodynamic simulations of the explosion phase of the white dwarf for center and off-center detonations with five different stellar velocity profiles at the onset of the detonation. In order to follow the complex flows and to calculate the nucleosynthetic yields, approximately 10,000 tracer particles were added to every simulation. We observe two distinct post-detonation expansion phases: rarefaction and bulk expansion. Almost all the burning to {sup 56}Ni occurs only in the rarefaction phase, and its expansion timescale is influenced by pre-existing flow structure in the star, in particular by the pre-detonation stellar velocity profile. We find that the mass fractions of the {alpha}-particle nuclei, including {sup 56}Ni, are tight functions of the empirical physical parameter {rho}{sub up}/v{sub down}, where {rho}{sub up} is the mass density immediately upstream of the detonation wave front and v{sub down} is the velocity of the flow immediately downstream of the detonation wave front. We also find that v{sub down} depends on the pre-detonation flow velocity. We conclude that the properties of the pre-existing flow, in particular the internal stellar velocity profile, influence the final isotopic composition of burned matter produced by the detonation.

  12. Deuterium-tritium neutron yield measurements with the 4.5 m neutron-time-of-flight detectors at NIF

    SciTech Connect (OSTI)

    Moran, M. J.; Bond, E. J.; Clancy, T. J.; Eckart, M. J.; Khater, H. Y. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Glebov, V. Yu. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299 (United States)

    2012-10-15T23:59:59.000Z

    The first several campaigns of laser fusion experiments at the National Ignition Facility (NIF) included a family of high-sensitivity scintillator/photodetector neutron-time-of-flight (nTOF) detectors for measuring deuterium-deuterium (DD) and DT neutron yields. The detectors provided consistent neutron yield (Y{sub n}) measurements from below 10{sup 9} (DD) to nearly 10{sup 15} (DT). The detectors initially demonstrated detector-to-detector Y{sub n} precisions better than 5%, but lacked in situ absolute calibrations. Recent experiments at NIF now have provided in situ DT yield calibration data that establish the absolute sensitivity of the 4.5 m differential tissue harmonic imaging (DTHI) detector with an accuracy of {+-}10% and precision of {+-}1%. The 4.5 m nTOF calibration measurements also have helped to establish improved detector impulse response functions and data analysis methods, which have contributed to improving the accuracy of the Y{sub n} measurements. These advances have also helped to extend the usefulness of nTOF measurements of ion temperature and downscattered neutron ratio (neutron yield 10-12 MeV divided by yield 13-15 MeV) with other nTOF detectors.

  13. Dalitz analysis of B{yields}K{pi}{sup +}{psi}{sup '} decays and the Z(4430){sup +}

    SciTech Connect (OSTI)

    Mizuk, R.; Balagura, V.; Chistov, R.; Danilov, M.; Liventsev, D.; Pakhlov, P.; Pakhlova, G.; Tikhomirov, I.; Uglov, T. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Adachi, I.; Dalseno, J.; Haba, J.; Hara, T.; Itoh, R.; Iwasaki, Y.; Krokovny, P.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K. [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (and others)

    2009-08-01T23:59:59.000Z

    From a Dalitz plot analysis of B{yields}K{pi}{sup +}{psi}{sup '} decays, we find a signal for Z(4430){sup +}{yields}{pi}{sup +}{psi}{sup '} with a mass M=(4443{sub -12-13}{sup +15+19}) MeV/c{sup 2}, width {gamma}=(107{sub -43-56}{sup +86+74}) MeV, product branching fraction B(B{sup 0}{yields}K{sup -}Z(4430){sup +})xB(Z(4430){sup +}{yields}{pi}{sup +}{psi}{sup '})=(3.2{sub -0.9-1.6}{sup +1.8+5.3})x10{sup -5}, and significance of 6.4{sigma} that agrees with previous Belle measurements based on the same data sample. In addition, we determine the branching fraction B(B{sup 0}{yields}K*(892){sup 0}{psi}{sup '})=(5.52{sub -0.32-0.58}{sup +0.35+0.53})x10{sup -4} and the fraction of K*(892){sup 0} mesons that are longitudinally polarized f{sub L}=(44.8{sub -2.7-5.3}{sup +4.0+4.0})%. These results are obtained from a 605 fb{sup -1} data sample that contains 657x10{sup 6} BB pairs collected near the {upsilon}(4S) resonance with the Belle detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider.

  14. Microcarbon residue yield and heteroatom partitioning between volatiles and solids for whole vacuum resids and their liquid chromatographic fractions

    SciTech Connect (OSTI)

    Green, J.B.; Shay, J.Y.; Reynolds, J.W.; Green, J.A.; Young, L.L.; White, M.E.

    1993-10-01T23:59:59.000Z

    Five petroleum >1000{degrees}F resids were separated into compound type fractions using liquid chromatography. The coking tendency of each compound type was assessed using the microcarbon residue (MCR) test (ASTM D 4530). Heteroatom (N, S, Ni, V) partitioning between MCR solids versus volatiles was determined through analysis of the starting fractions and the corresponding MCR solids. The weighted sum of MCR solid yields over all compound types in a given resid was typically in good agreement with the MCR yield of the whole resid. This finding agrees with prior studies indicating coke yield to be an additive property. Sulfur partitioning was also an additive property, was predictable from MCR yield, and was nearly independent of the initial form (sulfide, thiophenic, sulfoxide) present. Nitrogen and nickel partitioning were nonadditive and therefore composition dependent. Partitioning of vanadium into solids was essentially quantitative for all resids and their fractions. MCR solid yield was generally dependent only on H/C ratio. However, there is some evidence indicating secondary dependence on hydrocarbon structure; i.e., that naphthenic rings reduce MCR in proportion to H/C by virtue of their effective hydrogen transfer properties. Deposition of N and Ni into MCR solids over the fractions was often appreciably less than that of the whole resids, thereby indicating that interaction among various compound types was required for maximum incorporation of those elements into coke.

  15. An investigation of microstructures and yield strengths in irradiated austenitic stainless steels using small specimen techniques

    SciTech Connect (OSTI)

    Toloczko, M.B.; Lucas, G.E.; Odette, G.R. [Univ. of California, Santa Barbara, CA (United States). Dept. of Chemical and Nuclear Engineering; Stoller, R.E. [Oak Ridge National Lab., TN (United States); Hamilton, M.L. [Pacific Northwest Lab., Richland, WA (United States)

    1996-12-31T23:59:59.000Z

    Transmission electron microscopy (TEM) specimens of a first core heat of 316 stainless steel, in both the solution annealed and 20% cold worked condition, were irradiated to 46 dpa at 420 C, to 49 dpa at 520 C, and to 34 dpa at 600 C in FFTF/MOTA. Prior to irradiation, some of the specimens were pre-implanted with approximately 100 appm of helium over one-third of the specimen thickness. Microstructures and mechanical properties of these specimens were examined. Microstructural data was taken from unimplanted zones and were consistent with data in the literature for unimplanted 316 SS. Where possible, irradiation hardening of the alloys was experimentally evaluated by microhardness and shear punch. For comparison, irradiation hardening was also calculated using a barrier hardening model and the microstructural data. Experimentally measured values of yield stress were in agreement with the range of values reported in the literature regardless of helium pre-implantation and were similar to the calculated values.

  16. Experimental Determination of DT Yield in High Current DD Dense Plasma Focii

    SciTech Connect (OSTI)

    Lowe, D. R. [National Security Technologies, LLC; Hagen, E. C. [National Security Technologies, LLC; Meehan, B. T. [National Security Technologies, LLC; Springs, R. K. [University of Nevada, Las Vegas; O'Brien, R. J. [University of Nevada, Las Vegas

    2013-06-18T23:59:59.000Z

    Dense Plasma Focii (DPF), which utilize deuterium gas to produce 2.45 MeV neutrons, may in fact also produce DT fusion neutrons at 14.1 MeV due to the triton production in the DD reaction. If beam-target fusion is the primary producer of fusion neutrons in DPFs, it is possible that ejected tritons from the first pinch will interact with the second pinch, and so forth. The 2 MJ DPF at National Security Technologies’ Losee Road Facility is able to, and has produced, over 1E12 DD neutrons per pulse, allowing an accurate measurement of the DT/DD ratio. The DT/DD ratio was experimentally verified by using the (n,2n) reaction in a large piece of praseodymium metal, which has a threshold reaction of 8 MeV, and is widely used as a DT yield measurement system1. The DT/DD ratio was experimentally determined for over 100 shots, and then compared to independent variables such as tube pressure, number of pinches per shot, total current, pinch current and charge voltage.

  17. Fission Yield Measurements from Highly Enriched Uranium Irradiated Inside a Boron Carbide Capsule

    SciTech Connect (OSTI)

    Metz, Lori A.; Friese, Judah I.; Finn, Erin C.; Greenwood, Lawrence R.; Kephart, Rosara F.; Hines, Corey C.; King, Matthew D.; Henry, Kelley; Wall, Donald E.

    2013-05-01T23:59:59.000Z

    A boron carbide capsule was previously designed and tested by Pacific Northwest National Laboratory (PNNL) and Washington State University (WSU) for spectral-tailoring in mixed spectrum reactors. The presented work used this B4C capsule to create a fission product sample from the irradiation of highly enriched uranium (HEU) with a fast fission neutron spectrum. An HEU foil was irradiated inside of the capsule in WSU’s 1 MW TRIGA reactor at full power for 200 min to produce 5.8 × 1013 fissions. After three days of cooling, the sample was shipped to PNNL for radiochemical separations and analysis by gamma and beta spectroscopy. Fission yields for products were calculated from the radiometric measurements and compared to measurements from thermal neutron induced fission (analyzed in parallel with the non-thermal sample at PNNL) and published evaluated fast-pooled and thermal nuclear data. Reactor dosimetry measurements were also completed to fully characterize the neutron spectrum and total fluence of the irradiation.

  18. High Yield Synthesis of Mesoscopic Conductive and Dispersible Carbon Nanostructures via Ultrasonication of Commercial Precursors

    SciTech Connect (OSTI)

    Srivastava, Vikram K [ORNL] [ORNL; Quinlan, Ronald [ORNL] [ORNL; Agapov, Alexander L [ORNL] [ORNL; Kisliuk, Alexander [ORNL] [ORNL; Bhat, Gajanan [ORNL] [ORNL; Mays, Jimmy [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK)

    2014-01-01T23:59:59.000Z

    The need to produce large quantities of graphenic materials displaying excellent conductivity, thermal resistance, and tunable properties for industrial applications has spurred interest in new techniques for exfoliating graphite. In this paper, sonication-assisted exfoliation of graphitic precursors in the presence of chloroform is shown to produce chemically and structurally unique exfoliated graphitic materials in high yields. These exfoliated graphites, referred to as mesographite and mesographene, respectively, exhibit unique properties which depend on the number of layers and exfoliation conditions. Structural characterization of mesographene reveals the presence of nanoscale two-dimensional graphene layers, and threedimensional carbon nanostructures sandwiched between layers, similar to those found in ball-milled and intercalated graphites. The conductivities of mesographite and mesographene are 2700 and 2000 S/m, respectively, indicating high conductivity despite flake damage. Optical absorption measurements of mesographite sonicated in various solvents showed significant changes in dispersion characteristics, and also indicated significant changes to mesoscopic colloidal behavior. A mechanism for functionalization and formation of capped carbon nanostructures is proposed by integrating the chemical and structural characterization in relation to the various carbon structures observed by electron microscopy. Composites based on common polymers were prepared by solution processing, and changes in thermal properties indicate improved dispersion of mesographite in polar polymers.

  19. On the maximum value of the cosmic abundance of oxygen and the oxygen yield

    E-Print Network [OSTI]

    L. S. Pilyugin; T. X. Thuan; J. M. Vilchez

    2007-01-11T23:59:59.000Z

    We search for the maximum oxygen abundance in spiral galaxies. Because this maximum value is expected to occur in the centers of the most luminous galaxies, we have constructed the luminosity - central metallicity diagram for spiral galaxies, based on a large compilation of existing data on oxygen abundances of HII regions in spiral galaxies. We found that this diagram shows a plateau at high luminosities (-22.3 oxygen abundance 12+log(O/H) ~ 8.87. This provides strong evidence that the oxygen abundance in the centers of the most luminous metal-rich galaxies reaches the maximum attainable value of oxygen abundance. Since some fraction of the oxygen (about 0.08 dex) is expected to be locked into dust grains, the maximum value of the true gas+dust oxygen abundance in spiral galaxies is 12+log(O/H) ~ 8.95. This value is a factor of ~ 2 higher than the recently estimated solar value. Based on the derived maximum oxygen abundance in galaxies, we found the oxygen yield to be about 0.0035, depending on the fraction of oxygen incorporated into dust grains.

  20. Fusion-neutron-yield, activation measurements at the Z accelerator: Design, analysis, and sensitivity

    SciTech Connect (OSTI)

    Hahn, K. D., E-mail: kdhahn@sandia.gov; Ruiz, C. L.; Fehl, D. L.; Chandler, G. A.; Knapp, P. F.; Smelser, R. M.; Torres, J. A. [Sandia National Laboratories, Diagnostics and Target Physics, Albuquerque, New Mexico 87123 (United States)] [Sandia National Laboratories, Diagnostics and Target Physics, Albuquerque, New Mexico 87123 (United States); Cooper, G. W.; Nelson, A. J. [Department of Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico 87131 (United States)] [Department of Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico 87131 (United States); Leeper, R. J. [Los Alamos National Laboratories, Plasma Physics Group, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratories, Plasma Physics Group, Los Alamos, New Mexico 87545 (United States)

    2014-04-15T23:59:59.000Z

    We present a general methodology to determine the diagnostic sensitivity that is directly applicable to neutron-activation diagnostics fielded on a wide variety of neutron-producing experiments, which include inertial-confinement fusion (ICF), dense plasma focus, and ion beam-driven concepts. This approach includes a combination of several effects: (1) non-isotropic neutron emission; (2) the 1/r{sup 2} decrease in neutron fluence in the activation material; (3) the spatially distributed neutron scattering, attenuation, and energy losses due to the fielding environment and activation material itself; and (4) temporally varying neutron emission. As an example, we describe the copper-activation diagnostic used to measure secondary deuterium-tritium fusion-neutron yields on ICF experiments conducted on the pulsed-power Z Accelerator at Sandia National Laboratories. Using this methodology along with results from absolute calibrations and Monte Carlo simulations, we find that for the diagnostic configuration on Z, the diagnostic sensitivity is 0.037% ± 17% counts/neutron per cm{sup 2} and is ? 40% less sensitive than it would be in an ideal geometry due to neutron attenuation, scattering, and energy-loss effects.

  1. 2004 DRY BEAN YIELD TRIALS J.D. Kelly, B. Long, N. Blakely, and K. Terpstra

    E-Print Network [OSTI]

    vine cranberry test; 20-entry Tebo bean test; and a 25- entry Midwest Performance Trial with pintos trial, 16-entry preliminary kidney bean test; a 36-entry standard bush cranberry test, a 64-entry tolerance in cranberry beans. A 16-entry regional trial was conducted cooperatively in Presque Isle County

  2. The influence of awns on yield and certain morphological characters of wheat

    E-Print Network [OSTI]

    Norris, Milton J

    1951-01-01T23:59:59.000Z

    , The analysis of Varianeec summerised in Table 3, indicates a highly significant difference between. the F14? of awned and awnless lineal This differenos is also apparent from the performance of the awned and awnless membex of each etrain, . Xn every strain...

  3. Observation of B{sup {+-}}{yields}{psi}(2S){pi}{sup {+-}} and search for direct CP violation

    SciTech Connect (OSTI)

    Bhardwaj, V.; Kumar, R.; Singh, J. B. [Panjab University, Chandigarh (India); Adachi, I.; Brodzicka, J.; Dalseno, J.; Hazumi, M.; Itoh, R.; Iwasaki, Y.; Katayama, N.; Kichimi, H.; Krokovny, P.; Nakao, M.; Nishida, S.; Ozaki, H.; Sakai, Y.; Schuemann, J.; Tanaka, M.; Trabelsi, K.; Uehara, S. [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (and others)

    2008-09-01T23:59:59.000Z

    We report the first observation of B{sup {+-}}{yields}{psi}(2S){pi}{sup {+-}}, a Cabibbo- and color-suppressed decay. This analysis is based on 657x10{sup 6} BB events collected at the {upsilon}(4S) resonance with the Belle detector at the KEKB energy-asymmetric e{sup +}e{sup -} collider. The measured branching fraction is (2.44{+-}0.22{+-}0.20)x10{sup -5} and the charge asymmetry is A=0.022{+-}0.085{+-}0.016. The ratio of the branching fractions B(B{sup {+-}}{yields}{psi}(2S){pi}{sup {+-}})/B(B{sup {+-}}{yields}{psi}(2S)K{sup {+-}})=(3.99{+-}0.36{+-}0.17)% is also determined.

  4. Evidence for CP Violation in B{sup 0}{yields}J/{psi}{pi}{sup 0} Decays

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Tico, J. Garra; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A.; Pappagallo, M. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Eigen, G.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N.; Button-Shafer, J. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

    2008-07-11T23:59:59.000Z

    We present measurements of the branching fraction and time-dependent CP asymmetries in B{sup 0}{yields}J/{psi}{pi}{sup 0} decays based on 466x10{sup 6} {upsilon}(4S){yields}BB events collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the CP asymmetry parameters S=-1.23{+-}0.21(stat){+-}0.04(syst) and C=-0.20{+-}0.19(stat){+-}0.03(syst), where the measured value of (S, C) is 4.0 standard deviations from (0, 0) including systematic uncertainties. The branching fraction is determined to be B(B{sup 0}{yields}J/{psi}{pi}{sup 0})=[1.69{+-}0.14(stat){+-}0.07(syst)]x10{sup -5}.

  5. Higher-order multipole amplitude measurement in {psi}{sup '}{yields}{gamma}{chi}{sub c2}

    SciTech Connect (OSTI)

    Ablikim, M.; An, F. F.; An, Z. H.; Bai, J. Z.; Berger, N.; Bian, J. M.; Cai, X.; Cao, G. F.; Chang, J. F.; Chen, G.; Chen, H. S.; Chen, J. C.; Chen, M. L.; Chen, Y.; Chen, Y. B.; Chu, Y. P.; Dai, H. L.; Dai, J. P.; Deng, Z. Y.; Dong, L. Y. [Institute of High Energy Physics, Beijing 100049 (China)

    2011-11-01T23:59:59.000Z

    Using 106x10{sup 6} {psi}{sup '} events collected with the BESIII detector at the BEPCII storage ring, the higher-order multipole amplitudes in the radiative transition {psi}{sup '}{yields}{gamma}{chi}{sub c2}{yields}{gamma}{pi}{sup +}{pi}{sup -}/{gamma}K{sup +}K{sup -} are measured. A fit to the {chi}{sub c2} production and decay angular distributions yields M2=0.046{+-}0.010{+-}0.013 and E3=0.015{+-}0.008{+-}0.018, where the first errors are statistical and the second systematic. Here M2 denotes the normalized magnetic quadrupole amplitude and E3 the normalized electric octupole amplitude. This measurement shows evidence for the existence of the M2 signal with 4.4{sigma} statistical significance and is consistent with the charm quark having no anomalous magnetic moment.

  6. Yield drag in a two-dimensional foam flow around a circular obstacle: Effect of liquid fraction

    E-Print Network [OSTI]

    Christophe Raufaste; B. Dollet; Simon Cox; Yi Jiang; François Graner

    2007-07-09T23:59:59.000Z

    We study the two-dimensional flow of foams around a circular obstacle within a long channel. In experiments, we confine the foam between liquid and glass surfaces. In simulations, we use a deterministic software, the Surface Evolver, for bubble details and a stochastic one, the extended Potts model, for statistics. We adopt a coherent definition of liquid fraction for all studied systems. We vary it in both experiments and simulations, and determine the yield drag of the foam, that is, the force exerted on the obstacle by the foam flowing at very low velocity. We find that the yield drag is linear over a large range of the ratio of obstacle to bubble size, and is independent of the channel width over a large range. Decreasing the liquid fraction, however, strongly increases the yield drag; we discuss and interpret this dependence.

  7. Direct contact heat exchanger performance

    SciTech Connect (OSTI)

    Wahl, E. F.

    1981-03-12T23:59:59.000Z

    Although the final performance result of a DCHE is the cost of the net electricity produced, the best performance cannot be achieved without optimizing the components of the system as well as the whole system. Thus collection and analysis of data on the internal performance of the column assists in optimizing the operation of the particular column as well as in suggesting ways for improving the operation and design of future columns.

  8. Momentive Performance Materials Distillation Intercharger

    E-Print Network [OSTI]

    Boucher, N.; Baisley, T.; Beers, C.; Cameron, R.; Holman, K.; Kotkoskie, T.; Norris, K.

    2013-01-01T23:59:59.000Z

    Presenter: Nicki (Collins) Boucher Project Team: T. Baisley, C. Beers, R. Cameron, K. Holman, T. Kotkoskie, K. Norris Momentive Performance Materials Inc. Waterford, NY May 23, 2013 Industrial Energy Technology Conference ACC Responsible... Care? Energy Efficiency Program Momentive Performance Materials Distillation Interchanger ESL-IE-13-05-20 Proceedings of the Thrity-Fifth Industrial Energy Technology Conference New Orleans, LA. May 21-24, 2013 Copyright 2013 Momentive Performance...

  9. Recyclable transmission line (RTL) and linear transformer driver (LTD) development for Z-pinch inertial fusion energy (Z-IFE) and high yield.

    SciTech Connect (OSTI)

    Sharpe, Robin Arthur; Kingsep, Alexander S. (Kurchatov Institute, Moscow, Russia); Smith, David Lewis; Olson, Craig Lee; Ottinger, Paul F. (Naval Research Laboratory, Washington, DC); Schumer, Joseph Wade (Naval Research Laboratory, Washington, DC); Welch, Dale Robert (Voss Scientific, Albuquerque, NM); Kim, Alexander (High Currents Institute, Tomsk, Russia); Kulcinski, Gerald L. (University of Wisconsin, Madison, WI); Kammer, Daniel C. (University of Wisconsin, Madison, WI); Rose, David Vincent (Voss Scientific, Albuquerque, NM); Nedoseev, Sergei L. (Kurchatov Institute, Moscow, Russia); Pointon, Timothy David; Smirnov, Valentin P. (Kurchatov Institute, Moscow, Russia); Turgeon, Matthew C.; Kalinin, Yuri G. (Kurchatov Institute, Moscow, Russia); Bruner, Nichelle "Nicki" (Voss Scientific, Albuquerque, NM); Barkey, Mark E. (University of Alabama, Tuscaloosa, AL); Guthrie, Michael (University of Wisconsin, Madison, WI); Thoma, Carsten (Voss Scientific, Albuquerque, NM); Genoni, Tom C. (Voss Scientific, Albuquerque, NM); Langston, William L.; Fowler, William E.; Mazarakis, Michael Gerrassimos

    2007-01-01T23:59:59.000Z

    Z-Pinch Inertial Fusion Energy (Z-IFE) complements and extends the single-shot z-pinch fusion program on Z to a repetitive, high-yield, power plant scenario that can be used for the production of electricity, transmutation of nuclear waste, and hydrogen production, all with no CO{sub 2} production and no long-lived radioactive nuclear waste. The Z-IFE concept uses a Linear Transformer Driver (LTD) accelerator, and a Recyclable Transmission Line (RTL) to connect the LTD driver to a high-yield fusion target inside a thick-liquid-wall power plant chamber. Results of RTL and LTD research are reported here, that include: (1) The key physics issues for RTLs involve the power flow at the high linear current densities that occur near the target (up to 5 MA/cm). These issues include surface heating, melting, ablation, plasma formation, electron flow, magnetic insulation, conductivity changes, magnetic field diffusion changes, possible ion flow, and RTL mass motion. These issues are studied theoretically, computationally (with the ALEGRA and LSP codes), and will work at 5 MA/cm or higher, with anode-cathode gaps as small as 2 mm. (2) An RTL misalignment sensitivity study has been performed using a 3D circuit model. Results show very small load current variations for significant RTL misalignments. (3) The key structural issues for RTLs involve optimizing the RTL strength (varying shape, ribs, etc.) while minimizing the RTL mass. Optimization studies show RTL mass reductions by factors of three or more. (4) Fabrication and pressure testing of Z-PoP (Proof-of-Principle) size RTLs are successfully reported here. (5) Modeling of the effect of initial RTL imperfections on the buckling pressure has been performed. Results show that the curved RTL offers a much greater buckling pressure as well as less sensitivity to imperfections than three other RTL designs. (6) Repetitive operation of a 0.5 MA, 100 kV, 100 ns, LTD cavity with gas purging between shots and automated operation is demonstrated at the SNL Z-IFE LTD laboratory with rep-rates up to 10.3 seconds between shots (this is essentially at the goal of 10 seconds for Z-IFE). (7) A single LTD switch at Tomsk was fired repetitively every 12 seconds for 36,000 shots with no failures. (8) Five 1.0 MA, 100 kV, 100 ns, LTD cavities have been combined into a voltage adder configuration with a test load to successfully study the system operation. (9) The combination of multiple LTD coaxial lines into a tri-plate transmission line is examined. The 3D Quicksilver code is used to study the electron flow losses produced near the magnetic nulls that occur where coax LTD lines are added together. (10) Circuit model codes are used to model the complete power flow circuit with an inductive isolator cavity. (11) LTD architectures are presented for drivers for Z-IFE and high yield. A 60 MA LTD driver and a 90 MA LTD driver are proposed. Present results from all of these power flow studies validate the whole LTD/RTL concept for single-shot ICF high yield, and for repetitive-shot IFE.

  10. Preliminary performance of HT datalink

    SciTech Connect (OSTI)

    Cieslewski, Grzegorz

    2014-02-11T23:59:59.000Z

    Preliminary performance of HT HS datalink at room temperature over 5000ft of wireline. The data shows ablility of the datalink to adapt by decreasing speed.

  11. Optimizing performance of energy systems

    SciTech Connect (OSTI)

    Stricker, S.

    1985-01-01T23:59:59.000Z

    This book discusses optimizing performance of energy systems. Topics covered include a test station, heat flow integrator, microcomputer control of MIMIC operation, and microcomputer control of simulation operation.

  12. Preliminary performance of HT datalink

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

    Cieslewski, Grzegorz

    Preliminary performance of HT HS datalink at room temperature over 5000ft of wireline. The data shows ablility of the datalink to adapt by decreasing speed.

  13. High-Performance Nanostructured Coating

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

    design utilizing a nanoparticle in dielectric matrix approach is used to achieve high optical performance. New refractory materials are used to either make or coat the...

  14. DPF Performance with Biodiesel Blends

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

    DPF Performance with Biodiesel Blends Aaron Williams, Bob McCormick, Bob Hayes, John Ireland National Renewable Energy Laboratory Howard L. Fang Cummins, Inc. Diesel Engine...

  15. Home Performance with Energy Star

    Broader source: Energy.gov [DOE]

    Through the Home Performance with Energy Star program, Focus on Energy offers instant rewards for installing select recommended efficiency measures following a home energy audit. Energy consultants...

  16. Performance Degradation of LSCF Cathodes

    SciTech Connect (OSTI)

    Alinger, Matthew

    2013-09-30T23:59:59.000Z

    This final report summarizes the progress made during the October 1, 2008 - September 30, 2013 period under Cooperative Agreement DE-NT0004109 for the U. S. Department of Energy/National Energy Technology Laboratory (USDOE/NETL) entitled “Performance Degradation of LSCF Cathodes”. The primary objective of this program is to develop a performance degradation mitigation path for high performing, cost-effective solid oxide fuel cells (SOFCs). Strategies to mitigate performance degradation are developed and implemented. In addition, thermal spray manufacturing of SOFCs is explored. Combined, this work establishes a basis for cost-effective SOFC cells.

  17. Search for CP-violating charge asymmetry in B{sup {+-}}{yields}J/{psi}K{sup {+-}} decays

    SciTech Connect (OSTI)

    Sakai, K.; Kawasaki, T.; Miyata, H.; Watanabe, M. [Niigata University, Niigata (Japan); Aihara, H. [Department of Physics, University of Tokyo, Tokyo (Japan); Arinstein, K.; Bondar, A.; Eidelman, S.; Kuzmin, A.; Shwartz, B.; Zyukova, O. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation); Novosibirsk State University, Novosibirsk (Russian Federation); Aushev, T. [Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne (Switzerland); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bakich, A. M.; McOnie, S.; Varvell, K. E. [School of Physics, University of Sydney, NSW 2006 (Australia); Balagura, V.; Liventsev, D.; Pakhlova, G.; Solovieva, E.; Uglov, T. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)

    2010-11-01T23:59:59.000Z

    We present the result of a search for charge asymmetry in B{sup {+-}}{yields}J/{psi}K{sup {+-}} decays using 772x10{sup 6} BB pairs collected at the {Upsilon}(4S) resonance by the Belle detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider. The CP-violating charge asymmetry is measured to be A{sub CP}(B{sup +}{yields}J/{psi}K{sup +})=[-0.76{+-}0.50 (stat){+-}0.22 (syst)]%.

  18. Tradeoffs associated with increasing water yield from the Edwards Plateau, Texas: balancing private costs and public benefits

    E-Print Network [OSTI]

    Garriga, Matthew David

    1998-01-01T23:59:59.000Z

    in Texas that water yield increases afier removing shrubby vegetation (Kelton 1975, McCarl et. al. 1987, Hibbert 1979, Blackburn 1983, Griffin and McCarl 1989, Thurow et al. 1997, Thurow and Hester 1997, Hester et al. 1997). Ranch management decisions... expenditures to the rangeland regions in Texas where brush control is likely to improve water yields (Griffin and McCarl 1989), Recent hydrologic data (Thurow et al. 1987, Caesar 1991, Thurow and Hester 1997, Dugas et al. 1996, Hester 1996, Redeker 1998...

  19. A consistent, differential versus integral, method for measuring the delayed neutron yield in fissions

    SciTech Connect (OSTI)

    Flip, A. [CEA, Cadarache (France); Pang, H.F. [Tsinghua Univ., Beijing (China); D`Angelo, A. [ENEA, Roma (Italy)

    1995-12-31T23:59:59.000Z

    Due to the persistent uncertainties: {approximately} 5 % (the uncertainty, here and there after, is at 1{sigma}) in the prediction of the `reactivity scale` ({beta}{sub eff}) for a fast power reactor, an international project was recently initiated in the framework of the OECD/NEA activities for reevaluation, new measurements and integral benchmarking of delayed neutron (DN) data and related kinetic parameters (principally {beta}{sub eff}). Considering that the major part of this uncertainty is due to uncertainties in the DN yields (v{sub d}) and the difficulty for further improvement of the precision in differential (e.g. Keepin`s method) measurements, an international cooperative strategy was adopted aiming at extracting and consistently interpreting information from both differential (nuclear) and integral (in reactor) measurements. The main problem arises from the integral side; thus the idea was to realize {beta}{sub eff} like measurements (both deterministic and noise) in `clean` assemblies. The `clean` calculational context permitted the authors to develop a theory allowing to link explicitly this integral experimental level with the differential one, via a unified `Master Model` which relates v{sub d} and measurables quantities (on both levels) linearly. The combined error analysis is consequently largely simplified and the final uncertainty drastically reduced (theoretically, by a factor {radical}3). On the other hand the same theoretical development leading to the `Master Model`, also resulted in a structured scheme of approximations of the general (stochastic) Boltzmann equation allowing a consistent analysis of the large range of measurements concerned (stochastic, dynamic, static ... ). This paper is focused on the main results of this theoretical development and its application to the analysis of the Preliminary results of the BERENICE program ({beta}{sub eff} measurements in MASURCA, the first assembly in CADARACHE-FRANCE).

  20. PERFORMANCE EVALUATION OF TURBO CODES

    E-Print Network [OSTI]

    Alajaji, Fady

    PERFORMANCE EVALUATION OF TURBO CODES by Guangchong Zhu A project submitted to the Department named ``Turbo codes'' which claims an extraordinary performance with reasonable decoding complexity. In this project, we begin with a study on the structure and principle of Turbo codes. We then investigate